Merge pull request 'public IP address autodiscovery' (#20) from stun into main

Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/diplonat/pulls/20

17 files changed, 2732 insertions, 1038 deletions

diff --git a/.rustfmt.toml b/.rustfmt.toml
deleted file mode 100644
index 37dfe2c..0000000
--- a/.rustfmt.toml
+++ /dev/null
@@ -1,75 +0,0 @@
-unstable_features = true
-
-array_width = 60
-attr_fn_like_width = 70
-binop_separator = "Front"
-blank_lines_lower_bound = 0
-blank_lines_upper_bound = 1
-brace_style = "SameLineWhere"
-chain_width = 60
-color = "Auto"
-combine_control_expr = true
-comment_width = 80
-condense_wildcard_suffixes = true
-control_brace_style = "AlwaysSameLine"
-disable_all_formatting = false
-empty_item_single_line = true
-enum_discrim_align_threshold = 0
-error_on_line_overflow = true
-error_on_unformatted = true
-fn_args_layout = "Tall"
-fn_call_width = 60
-fn_single_line = true
-force_explicit_abi = true
-force_multiline_blocks = false
-format_code_in_doc_comments = true
-# format_generated_files = true
-format_macro_matchers = true
-format_macro_bodies = true
-format_strings = true
-hard_tabs = false
-#hex_literal_case = "Lower"
-hide_parse_errors = false
-ignore = []
-imports_indent = "Block"
-imports_layout = "Mixed"
-indent_style = "Block"
-inline_attribute_width = 0
-license_template_path = ""
-match_arm_blocks = true
-match_arm_leading_pipes = "Never"
-match_block_trailing_comma = false
-max_width = 100
-merge_derives = true
-imports_granularity = "Crate"
-newline_style = "Unix"
-normalize_comments = true
-normalize_doc_attributes = true
-overflow_delimited_expr = false
-remove_nested_parens = true
-reorder_impl_items = true
-reorder_imports = true
-group_imports = "StdExternalCrate"
-reorder_modules = true
-report_fixme = "Unnumbered"
-report_todo = "Unnumbered"
-required_version = "1.4.37"
-skip_children = false
-single_line_if_else_max_width = 50
-space_after_colon = true
-space_before_colon = false
-#space_around_ranges = false
-struct_field_align_threshold = 0
-struct_lit_single_line = true
-struct_lit_width = 18
-struct_variant_width = 35
-tab_spaces = 2
-trailing_comma = "Vertical"
-trailing_semicolon = false
-type_punctuation_density = "Wide"
-use_field_init_shorthand = false
-use_small_heuristics = "Off"
-use_try_shorthand = true
-version = "Two"
-where_single_line = true
-wrap_comments = true
diff --git a/Cargo.lock b/Cargo.lock
index 73e1e76..0208df8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,13 +27,130 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9a60d744a80c30fcb657dfe2c1b22bcb3e814c1a1e3674f32bf5820b570fbff"
 
 [[package]]
+name = "async-channel"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf46fee83e5ccffc220104713af3292ff9bc7c64c7de289f66dae8e38d826833"
+dependencies = [
+ "concurrent-queue 2.1.0",
+ "event-listener",
+ "futures-core",
+]
+
+[[package]]
+name = "async-executor"
+version = "1.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "871f9bb5e0a22eeb7e8cf16641feb87c9dc67032ccf8ff49e772eb9941d3a965"
+dependencies = [
+ "async-task",
+ "concurrent-queue 1.2.4",
+ "fastrand",
+ "futures-lite",
+ "once_cell",
+ "slab",
+]
+
+[[package]]
+name = "async-global-executor"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"
+dependencies = [
+ "async-channel",
+ "async-executor",
+ "async-io",
+ "async-lock",
+ "blocking",
+ "futures-lite",
+ "once_cell",
+]
+
+[[package]]
+name = "async-io"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fc5b45d93ef0529756f812ca52e44c221b35341892d3dcc34132ac02f3dd2af"
+dependencies = [
+ "async-lock",
+ "autocfg",
+ "cfg-if 1.0.0",
+ "concurrent-queue 2.1.0",
+ "futures-lite",
+ "log 0.4.17",
+ "parking",
+ "polling",
+ "rustix",
+ "slab",
+ "socket2 0.4.9",
+ "waker-fn",
+]
+
+[[package]]
+name = "async-lock"
+version = "2.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa24f727524730b077666307f2734b4a1a1c57acb79193127dcc8914d5242dd7"
+dependencies = [
+ "event-listener",
+]
+
+[[package]]
+name = "async-macros"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "644a5a8de80f2085a1e7e57cd1544a2a7438f6e003c0790999bd43b92a77cdb2"
+dependencies = [
+ "futures-core",
+ "pin-utils",
+]
+
+[[package]]
+name = "async-std"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"
+dependencies = [
+ "async-channel",
+ "async-global-executor",
+ "async-io",
+ "async-lock",
+ "crossbeam-utils",
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-lite",
+ "gloo-timers",
+ "kv-log-macro",
+ "log 0.4.17",
+ "memchr",
+ "once_cell",
+ "pin-project-lite",
+ "pin-utils",
+ "slab",
+ "wasm-bindgen-futures",
+]
+
+[[package]]
+name = "async-task"
+version = "4.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ecc7ab41815b3c653ccd2978ec3255c81349336702dfdf62ee6f7069b12a3aae"
+
+[[package]]
+name = "atomic-waker"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "debc29dde2e69f9e47506b525f639ed42300fc014a3e007832592448fa8e4599"
+
+[[package]]
 name = "attohttpc"
 version = "0.16.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fdb8867f378f33f78a811a8eb9bf108ad99430d7aad43315dd9319c827ef6247"
 dependencies = [
  "http",
- "log",
+ "log 0.4.17",
  "url",
  "wildmatch",
 ]
@@ -44,9 +161,9 @@ version = "0.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.1.12",
  "libc",
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -68,6 +185,32 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8dead7461c1127cf637931a1e50934eb6eee8bff2f74433ac7909e9afcee04a3"
 
 [[package]]
+name = "bitflags"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4f67931368edf3a9a51d29886d245f1c3db2f1ef0dcc9e35ff70341b78c10d23"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "blocking"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c67b173a56acffd6d2326fb7ab938ba0b00a71480e14902b2591c87bc5741e8"
+dependencies = [
+ "async-channel",
+ "async-lock",
+ "async-task",
+ "atomic-waker",
+ "fastrand",
+ "futures-lite",
+]
+
+[[package]]
 name = "bumpalo"
 version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -92,6 +235,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4964518bd3b4a8190e832886cdc0da9794f12e8e6c1613a9e90ff331c4c8724b"
 
 [[package]]
+name = "cache-padded"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1db59621ec70f09c5e9b597b220c7a2b43611f4710dc03ceb8748637775692c"
+
+[[package]]
 name = "cc"
 version = "1.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -110,6 +259,43 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
+name = "concurrent-queue"
+version = "1.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af4780a44ab5696ea9e28294517f1fffb421a83a25af521333c838635509db9c"
+dependencies = [
+ "cache-padded",
+]
+
+[[package]]
+name = "concurrent-queue"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c278839b831783b70278b14df4d45e1beb1aad306c07bb796637de9a0e323e8e"
+dependencies = [
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "ctor"
+version = "0.1.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"
+dependencies = [
+ "quote",
+ "syn 1.0.109",
+]
+
+[[package]]
 name = "diplonat"
 version = "0.1.0"
 dependencies = [
@@ -119,13 +305,14 @@ dependencies = [
  "get_if_addrs",
  "igd",
  "iptables",
- "log",
+ "log 0.4.17",
  "pretty_env_logger",
  "regex 1.3.7",
  "reqwest",
  "serde",
  "serde-lexpr",
  "serde_json",
+ "stun-client",
  "tokio",
 ]
 
@@ -146,7 +333,7 @@ checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
  "humantime",
- "log",
+ "log 0.4.17",
  "regex 1.3.7",
  "termcolor",
 ]
@@ -161,6 +348,42 @@ dependencies = [
 ]
 
 [[package]]
+name = "errno"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50d6a0976c999d473fe89ad888d5a284e55366d9dc9038b1ba2aa15128c4afa0"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.45.0",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
+
+[[package]]
+name = "event-listener"
+version = "2.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"
+
+[[package]]
+name = "fastrand"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e51093e27b0797c359783294ca4f0a911c270184cb10f85783b118614a1501be"
+dependencies = [
+ "instant",
+]
+
+[[package]]
 name = "fnv"
 version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -178,9 +401,9 @@ dependencies = [
 
 [[package]]
 name = "futures"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"
+checksum = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -193,9 +416,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"
+checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -203,15 +426,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"
+checksum = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -220,42 +443,53 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de27142b013a8e869c14957e6d2edeef89e97c289e69d042ee3a49acd8b51789"
+checksum = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"
+
+[[package]]
+name = "futures-lite"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"
+dependencies = [
+ "fastrand",
+ "futures-core",
+ "futures-io",
+ "memchr",
+ "parking",
+ "pin-project-lite",
+ "waker-fn",
+]
 
 [[package]]
 name = "futures-macro"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"
+checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
- "proc-macro-hack",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.13",
 ]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f2032893cb734c7a05d85ce0cc8b8c4075278e93b24b66f9de99d6eb0fa8acc"
+checksum = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e"
 
 [[package]]
 name = "futures-task"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"
-dependencies = [
- "once_cell",
-]
+checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"
 
 [[package]]
 name = "futures-util"
-version = "0.3.5"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8764574ff08b701a084482c3c7031349104b07ac897393010494beaa18ce32c6"
+checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -264,10 +498,8 @@ dependencies = [
  "futures-sink",
  "futures-task",
  "memchr",
- "pin-project 0.4.8",
+ "pin-project-lite",
  "pin-utils",
- "proc-macro-hack",
- "proc-macro-nested",
  "slab",
 ]
 
@@ -311,6 +543,24 @@ dependencies = [
 ]
 
 [[package]]
+name = "glob"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
+
+[[package]]
+name = "gloo-timers"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
 name = "h2"
 version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -345,6 +595,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "hermit-abi"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+
+[[package]]
 name = "http"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -403,8 +659,8 @@ dependencies = [
  "httparse",
  "httpdate",
  "itoa",
- "pin-project 1.0.8",
- "socket2",
+ "pin-project",
+ "socket2 0.3.19",
  "tokio",
  "tower-service",
  "tracing",
@@ -446,7 +702,7 @@ dependencies = [
  "futures",
  "http",
  "hyper",
- "log",
+ "log 0.4.17",
  "rand",
  "tokio",
  "url",
@@ -464,12 +720,41 @@ dependencies = [
 ]
 
 [[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "io-lifetimes"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "09270fd4fa1111bc614ed2246c7ef56239a3063d5be0d1ec3b589c505d400aeb"
+dependencies = [
+ "hermit-abi 0.3.1",
+ "libc",
+ "windows-sys 0.45.0",
+]
+
+[[package]]
 name = "ipnet"
 version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"
 
 [[package]]
+name = "ipnetwork"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "02c3eaab3ac0ede60ffa41add21970a7df7d91772c03383aac6c2c3d53cc716b"
+dependencies = [
+ "serde",
+]
+
+[[package]]
 name = "iptables"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -496,6 +781,25 @@ dependencies = [
 ]
 
 [[package]]
+name = "kernel32-sys"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
+dependencies = [
+ "winapi 0.2.8",
+ "winapi-build",
+]
+
+[[package]]
+name = "kv-log-macro"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
+dependencies = [
+ "log 0.4.17",
+]
+
+[[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -532,17 +836,33 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.112"
+version = "0.2.141"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3304a64d199bb964be99741b7a14d26972741915b3649639149b2479bb46f4b5"
+
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.1"
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-checksum = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"
+checksum = "d59d8c75012853d2e872fb56bc8a2e53718e2cafe1a4c823143141c6d90c322f"
 
 [[package]]
 name = "log"
-version = "0.4.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
+checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 dependencies = [
- "cfg-if 0.1.10",
+ "log 0.4.17",
+]
+
+[[package]]
+name = "log"
+version = "0.4.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
+dependencies = [
+ "cfg-if 1.0.0",
+ "value-bag",
 ]
 
 [[package]]
@@ -553,9 +873,9 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "memchr"
-version = "2.3.0"
+version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3197e20c7edb283f87c071ddfc7a2cca8f8e0b888c242959846a6fce03c72223"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mime"
@@ -570,10 +890,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8067b404fe97c70829f082dec8bcf4f71225d7eaea1d8645349cb76fa06205cc"
 dependencies = [
  "libc",
- "log",
+ "log 0.4.17",
  "miow",
  "ntapi",
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -582,7 +902,7 @@ version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
 dependencies = [
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -591,7 +911,7 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a0d95c5fa8b641c10ad0b8887454ebaafa3c92b5cd5350f8fc693adafd178e7b"
 dependencies = [
- "bitflags",
+ "bitflags 0.4.0",
  "cfg-if 0.1.10",
  "libc",
  "rustc_version",
@@ -605,7 +925,7 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
 dependencies = [
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -614,7 +934,7 @@ version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.1.12",
  "libc",
 ]
 
@@ -625,19 +945,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
 
 [[package]]
-name = "percent-encoding"
-version = "2.1.0"
+name = "parking"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
+checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
 
 [[package]]
-name = "pin-project"
-version = "0.4.8"
+name = "percent-encoding"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7804a463a8d9572f13453c516a5faea534a2403d7ced2f0c7e100eeff072772c"
-dependencies = [
- "pin-project-internal 0.4.8",
-]
+checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "pin-project"
@@ -645,18 +962,7 @@ version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "576bc800220cc65dac09e99e97b08b358cfab6e17078de8dc5fee223bd2d0c08"
 dependencies = [
- "pin-project-internal 1.0.8",
-]
-
-[[package]]
-name = "pin-project-internal"
-version = "0.4.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "385322a45f2ecf3410c68d2a549a4a2685e8051d0f278e39743ff4e451cb9b3f"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
+ "pin-project-internal",
 ]
 
 [[package]]
@@ -667,7 +973,7 @@ checksum = "6e8fe8163d14ce7f0cdac2e040116f22eac817edabff0be91e8aff7e9accf389"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -683,6 +989,108 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
+name = "pnet"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b657d5b9a98a2c81b82549922b8b15984e49f8120cd130b11a09f81b9b55d633"
+dependencies = [
+ "ipnetwork",
+ "pnet_base",
+ "pnet_datalink",
+ "pnet_packet",
+ "pnet_sys",
+ "pnet_transport",
+]
+
+[[package]]
+name = "pnet_base"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4e4688aa497ef62129f302a5800ebde67825f8ff129f43690ca84099f6620bed"
+
+[[package]]
+name = "pnet_datalink"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59001c9c4d9d23bf2f61afaaf134a766fd6932ba2557c606b9112157053b9ac7"
+dependencies = [
+ "ipnetwork",
+ "libc",
+ "pnet_base",
+ "pnet_sys",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "pnet_macros"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d894a90dbdbe976e624453fc31b1912f658083778329442dda1cca94f76a3e76"
+dependencies = [
+ "regex 1.3.7",
+ "syntex",
+ "syntex_syntax",
+]
+
+[[package]]
+name = "pnet_macros_support"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b99269a458570bc06a9132254349f6543d9abc92e88b68d8de934aac9481f6c"
+dependencies = [
+ "pnet_base",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33f8238f4eb897a55ca06510cd71afb5b5ca7b4ff2d7188f1ca855fc1710133e"
+dependencies = [
+ "glob",
+ "pnet_base",
+ "pnet_macros",
+ "pnet_macros_support",
+ "syntex",
+]
+
+[[package]]
+name = "pnet_sys"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7589e4c4e7ed72a3ffdff8a65d3bea84e8c3a23e19d0a10e8f45efdf632fff15"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "pnet_transport"
+version = "0.27.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "326abdfd2e70e8e943bd58087b59686de170cac050a3b19c9fcc84db01690af5"
+dependencies = [
+ "libc",
+ "pnet_base",
+ "pnet_packet",
+ "pnet_sys",
+]
+
+[[package]]
+name = "polling"
+version = "2.5.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22122d5ec4f9fe1b3916419b76be1e80bcb93f618d071d2edf841b137b2a2bd6"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "libc",
+ "log 0.4.17",
+ "wepoll-ffi",
+ "windows-sys 0.42.0",
+]
+
+[[package]]
 name = "ppv-lite86"
 version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -695,7 +1103,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
 dependencies = [
  "env_logger",
- "log",
+ "log 0.4.17",
 ]
 
 [[package]]
@@ -706,22 +1114,16 @@ checksum = "ecd45702f76d6d3c75a80564378ae228a85f0b59d2f3ed43c91b4a69eb2ebfc5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
-name = "proc-macro-nested"
-version = "0.1.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"
-
-[[package]]
 name = "proc-macro2"
-version = "1.0.34"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1"
+checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -732,9 +1134,9 @@ checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
 
 [[package]]
 name = "quote"
-version = "1.0.2"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
 dependencies = [
  "proc-macro2",
 ]
@@ -837,7 +1239,7 @@ dependencies = [
  "ipnet",
  "js-sys",
  "lazy_static 1.4.0",
- "log",
+ "log 0.4.17",
  "mime",
  "percent-encoding",
  "pin-project-lite",
@@ -867,10 +1269,16 @@ dependencies = [
  "spin",
  "untrusted",
  "web-sys",
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
+name = "rustc-serialize"
+version = "0.3.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
+
+[[package]]
 name = "rustc_version"
 version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -880,12 +1288,26 @@ dependencies = [
 ]
 
 [[package]]
+name = "rustix"
+version = "0.37.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2aae838e49b3d63e9274e1c01833cc8139d3fec468c3b84688c628f44b1ae11d"
+dependencies = [
+ "bitflags 1.3.2",
+ "errno",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.45.0",
+]
+
+[[package]]
 name = "rustls"
 version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d37e5e2290f3e040b594b1a9e04377c2c671f1a1cfd9bfdef82106ac1c113f84"
 dependencies = [
- "log",
+ "log 0.4.17",
  "ring",
  "sct",
  "webpki",
@@ -949,7 +1371,7 @@ checksum = "10be45e22e5597d4b88afcc71f9d7bfadcd604bf0c78a3ab4582b8d2b37f39f3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -995,7 +1417,17 @@ checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "winapi 0.3.8",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "socket2"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"
+dependencies = [
+ "libc",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1005,17 +1437,101 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
+name = "stun-client"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee0dfeef11f3744dc4784dcfde4d8cc91248fd3021db9ff10157768798e39a8e"
+dependencies = [
+ "async-macros",
+ "async-std",
+ "futures",
+ "pnet",
+ "rand",
+ "thiserror",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
 name = "syn"
-version = "1.0.83"
+version = "2.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23a1dfb999630e338648c83e91c59a4e9fb7620f520c3194b6b89e276f2f1959"
+checksum = "4c9da457c5285ac1f936ebd076af6dac17a61cfe7826f2076b4d015cf47bc8ec"
 dependencies = [
  "proc-macro2",
  "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "syntex"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a30b08a6b383a22e5f6edc127d169670d48f905bb00ca79a00ea3e442ebe317"
+dependencies = [
+ "syntex_errors",
+ "syntex_syntax",
+]
+
+[[package]]
+name = "syntex_errors"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04c48f32867b6114449155b2a82114b86d4b09e1bddb21c47ff104ab9172b646"
+dependencies = [
+ "libc",
+ "log 0.3.9",
+ "rustc-serialize",
+ "syntex_pos",
+ "term",
+ "unicode-xid",
+]
+
+[[package]]
+name = "syntex_pos"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fd49988e52451813c61fecbe9abb5cfd4e1b7bb6cdbb980a6fbcbab859171a6"
+dependencies = [
+ "rustc-serialize",
+]
+
+[[package]]
+name = "syntex_syntax"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7628a0506e8f9666fdabb5f265d0059b059edac9a3f810bda077abb5d826bd8d"
+dependencies = [
+ "bitflags 0.5.0",
+ "libc",
+ "log 0.3.9",
+ "rustc-serialize",
+ "syntex_errors",
+ "syntex_pos",
+ "term",
  "unicode-xid",
 ]
 
 [[package]]
+name = "term"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"
+dependencies = [
+ "kernel32-sys",
+ "winapi 0.2.8",
+]
+
+[[package]]
 name = "termcolor"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1025,6 +1541,26 @@ dependencies = [
 ]
 
 [[package]]
+name = "thiserror"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.13",
+]
+
+[[package]]
 name = "thread_local"
 version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1055,7 +1591,7 @@ dependencies = [
  "num_cpus",
  "pin-project-lite",
  "tokio-macros",
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1066,7 +1602,7 @@ checksum = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -1089,7 +1625,7 @@ dependencies = [
  "bytes 1.1.0",
  "futures-core",
  "futures-sink",
- "log",
+ "log 0.4.17",
  "pin-project-lite",
  "tokio",
 ]
@@ -1142,6 +1678,12 @@ dependencies = [
 ]
 
 [[package]]
+name = "unicode-ident"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
+
+[[package]]
 name = "unicode-normalization"
 version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1152,9 +1694,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-xid"
-version = "0.2.0"
+version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
+checksum = "36dff09cafb4ec7c8cf0023eb0b686cb6ce65499116a12201c9e11840ca01beb"
 
 [[package]]
 name = "untrusted"
@@ -1181,18 +1723,40 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4ae116fef2b7fea257ed6440d3cfcff7f190865f170cdad00bb6465bf18ecba"
 
 [[package]]
+name = "value-bag"
+version = "1.0.0-alpha.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2209b78d1249f7e6f3293657c9779fe31ced465df091bbd433a1cf88e916ec55"
+dependencies = [
+ "ctor",
+ "version_check",
+]
+
+[[package]]
+name = "version_check"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
+
+[[package]]
 name = "void"
 version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 
 [[package]]
+name = "waker-fn"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
+
+[[package]]
 name = "want"
 version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
 dependencies = [
- "log",
+ "log 0.4.17",
  "try-lock",
 ]
 
@@ -1220,10 +1784,10 @@ checksum = "a317bf8f9fba2476b4b2c85ef4c4af8ff39c3c7f0cdfeed4f82c34a880aa837b"
 dependencies = [
  "bumpalo",
  "lazy_static 1.4.0",
- "log",
+ "log 0.4.17",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-shared",
 ]
 
@@ -1257,7 +1821,7 @@ checksum = "7803e0eea25835f8abdc585cd3021b3deb11543c6fe226dcd30b228857c5c5ab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1289,6 +1853,15 @@ dependencies = [
 ]
 
 [[package]]
+name = "wepoll-ffi"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"
+dependencies = [
+ "cc",
+]
+
+[[package]]
 name = "wildmatch"
 version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1302,15 +1875,21 @@ checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
 
 [[package]]
 name = "winapi"
-version = "0.3.8"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
 dependencies = [
  "winapi-i686-pc-windows-gnu",
  "winapi-x86_64-pc-windows-gnu",
 ]
 
 [[package]]
+name = "winapi-build"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
+
+[[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -1322,7 +1901,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1332,12 +1911,93 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
+name = "windows-sys"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
 name = "winreg"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"
 dependencies = [
- "winapi 0.3.8",
+ "winapi 0.3.9",
 ]
 
 [[package]]
diff --git a/Cargo.nix b/Cargo.nix
index db4a90d..e175f5b 100644
--- a/Cargo.nix
+++ b/Cargo.nix
@@ -23,7 +23,7 @@ args@{
   ignoreLockHash,
 }:
 let
-  nixifiedLockHash = "4d0d191cfd882cd499203e5184c18f2cb0540a4e6ecc4b1fcfeff5f77fac4996";
+  nixifiedLockHash = "50e0fb9e767afb6ee4ed63276e396b24c26156ab1dddc2b3058ffb0330a1081f";
   workspaceSrc = if args.workspaceSrc == null then ./. else args.workspaceSrc;
   currentLockHash = builtins.hashFile "sha256" (workspaceSrc + /Cargo.lock);
   lockHashIgnored = if ignoreLockHash
@@ -53,7 +53,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "81ce3d38065e618af2d7b77e10c5ad9a069859b4be3c2250f674af3840d9c8a5"; };
     dependencies = {
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
     };
   });
   
@@ -67,7 +67,7 @@ in
       [ "std" ]
     ];
     dependencies = {
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
     };
   });
   
@@ -82,6 +82,165 @@ in
     ];
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".async-channel."1.8.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-channel";
+    version = "1.8.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "cf46fee83e5ccffc220104713af3292ff9bc7c64c7de289f66dae8e38d826833"; };
+    dependencies = {
+      concurrent_queue = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".concurrent-queue."2.1.0" { inherit profileName; }).out;
+      event_listener = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".event-listener."2.5.3" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-executor."1.4.1" = overridableMkRustCrate (profileName: rec {
+    name = "async-executor";
+    version = "1.4.1";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "871f9bb5e0a22eeb7e8cf16641feb87c9dc67032ccf8ff49e772eb9941d3a965"; };
+    dependencies = {
+      async_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-task."4.4.0" { inherit profileName; }).out;
+      concurrent_queue = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".concurrent-queue."1.2.4" { inherit profileName; }).out;
+      fastrand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".fastrand."1.9.0" { inherit profileName; }).out;
+      futures_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" { inherit profileName; }).out;
+      once_cell = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.9.0" { inherit profileName; }).out;
+      slab = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-global-executor."2.3.1" = overridableMkRustCrate (profileName: rec {
+    name = "async-global-executor";
+    version = "2.3.1";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "f1b6f5d7df27bd294849f8eec66ecfc63d11814df7a4f5d74168a2394467b776"; };
+    features = builtins.concatLists [
+      [ "async-io" ]
+      [ "default" ]
+    ];
+    dependencies = {
+      async_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-channel."1.8.0" { inherit profileName; }).out;
+      async_executor = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-executor."1.4.1" { inherit profileName; }).out;
+      async_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-io."1.13.0" { inherit profileName; }).out;
+      async_lock = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-lock."2.7.0" { inherit profileName; }).out;
+      blocking = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".blocking."1.3.0" { inherit profileName; }).out;
+      futures_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" { inherit profileName; }).out;
+      once_cell = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.9.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-io."1.13.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-io";
+    version = "1.13.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "0fc5b45d93ef0529756f812ca52e44c221b35341892d3dcc34132ac02f3dd2af"; };
+    dependencies = {
+      async_lock = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-lock."2.7.0" { inherit profileName; }).out;
+      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
+      concurrent_queue = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".concurrent-queue."2.1.0" { inherit profileName; }).out;
+      futures_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+      parking = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".parking."2.0.0" { inherit profileName; }).out;
+      polling = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".polling."2.5.2" { inherit profileName; }).out;
+      rustix = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rustix."0.37.7" { inherit profileName; }).out;
+      slab = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.2" { inherit profileName; }).out;
+      socket2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".socket2."0.4.9" { inherit profileName; }).out;
+      waker_fn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".waker-fn."1.1.0" { inherit profileName; }).out;
+    };
+    buildDependencies = {
+      autocfg = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".autocfg."1.0.0" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-lock."2.7.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-lock";
+    version = "2.7.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "fa24f727524730b077666307f2734b4a1a1c57acb79193127dcc8914d5242dd7"; };
+    dependencies = {
+      event_listener = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".event-listener."2.5.3" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-macros."2.0.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-macros";
+    version = "2.0.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "644a5a8de80f2085a1e7e57cd1544a2a7438f6e003c0790999bd43b92a77cdb2"; };
+    dependencies = {
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      pin_utils = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-utils."0.1.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-std."1.12.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-std";
+    version = "1.12.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "62565bb4402e926b29953c785397c6dc0391b7b446e45008b0049eb43cec6f5d"; };
+    features = builtins.concatLists [
+      [ "alloc" ]
+      [ "async-channel" ]
+      [ "async-global-executor" ]
+      [ "async-io" ]
+      [ "async-lock" ]
+      [ "crossbeam-utils" ]
+      [ "default" ]
+      [ "futures-channel" ]
+      [ "futures-core" ]
+      [ "futures-io" ]
+      [ "futures-lite" ]
+      [ "gloo-timers" ]
+      [ "kv-log-macro" ]
+      [ "log" ]
+      [ "memchr" ]
+      [ "once_cell" ]
+      [ "pin-project-lite" ]
+      [ "pin-utils" ]
+      [ "slab" ]
+      [ "std" ]
+      [ "wasm-bindgen-futures" ]
+    ];
+    dependencies = {
+      async_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-channel."1.8.0" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.kernel.name == "unknown") then "async_global_executor" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-global-executor."2.3.1" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.kernel.name == "unknown") then "async_io" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-io."1.13.0" { inherit profileName; }).out;
+      async_lock = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-lock."2.7.0" { inherit profileName; }).out;
+      crossbeam_utils = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crossbeam-utils."0.8.15" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.cpu.name == "wasm32" then "futures_channel" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.28" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.kernel.name == "unknown") then "futures_lite" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.cpu.name == "wasm32" then "gloo_timers" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".gloo-timers."0.2.6" { inherit profileName; }).out;
+      kv_log_macro = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".kv-log-macro."1.0.7" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
+      once_cell = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.9.0" { inherit profileName; }).out;
+      pin_project_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
+      pin_utils = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-utils."0.1.0" { inherit profileName; }).out;
+      slab = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.2" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.cpu.name == "wasm32" then "wasm_bindgen_futures" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen-futures."0.4.28" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".async-task."4.4.0" = overridableMkRustCrate (profileName: rec {
+    name = "async-task";
+    version = "4.4.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "ecc7ab41815b3c653ccd2978ec3255c81349336702dfdf62ee6f7069b12a3aae"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "std" ]
+    ];
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".atomic-waker."1.1.0" = overridableMkRustCrate (profileName: rec {
+    name = "atomic-waker";
+    version = "1.1.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "debc29dde2e69f9e47506b525f639ed42300fc014a3e007832592448fa8e4599"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".attohttpc."0.16.3" = overridableMkRustCrate (profileName: rec {
     name = "attohttpc";
     version = "0.16.3";
@@ -89,7 +248,7 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "fdb8867f378f33f78a811a8eb9bf108ad99430d7aad43315dd9319c827ef6247"; };
     dependencies = {
       http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       url = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".url."2.2.2" { inherit profileName; }).out;
       wildmatch = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wildmatch."1.1.0" { inherit profileName; }).out;
     };
@@ -102,8 +261,8 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"; };
     dependencies = {
       ${ if hostPlatform.parsed.kernel.name == "hermit" then "hermit_abi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hermit-abi."0.1.12" { inherit profileName; }).out;
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
-      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -132,6 +291,38 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "8dead7461c1127cf637931a1e50934eb6eee8bff2f74433ac7909e9afcee04a3"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".bitflags."0.5.0" = overridableMkRustCrate (profileName: rec {
+    name = "bitflags";
+    version = "0.5.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "4f67931368edf3a9a51d29886d245f1c3db2f1ef0dcc9e35ff70341b78c10d23"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".bitflags."1.3.2" = overridableMkRustCrate (profileName: rec {
+    name = "bitflags";
+    version = "1.3.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"; };
+    features = builtins.concatLists [
+      [ "default" ]
+    ];
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".blocking."1.3.0" = overridableMkRustCrate (profileName: rec {
+    name = "blocking";
+    version = "1.3.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "3c67b173a56acffd6d2326fb7ab938ba0b00a71480e14902b2591c87bc5741e8"; };
+    dependencies = {
+      async_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-channel."1.8.0" { inherit profileName; }).out;
+      async_lock = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-lock."2.7.0" { inherit profileName; }).out;
+      async_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-task."4.4.0" { inherit profileName; }).out;
+      atomic_waker = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".atomic-waker."1.1.0" { inherit profileName; }).out;
+      fastrand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".fastrand."1.9.0" { inherit profileName; }).out;
+      futures_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".bumpalo."3.2.0" = overridableMkRustCrate (profileName: rec {
     name = "bumpalo";
     version = "3.2.0";
@@ -171,6 +362,13 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "4964518bd3b4a8190e832886cdc0da9794f12e8e6c1613a9e90ff331c4c8724b"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".cache-padded."1.2.0" = overridableMkRustCrate (profileName: rec {
+    name = "cache-padded";
+    version = "1.2.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "c1db59621ec70f09c5e9b597b220c7a2b43611f4710dc03ceb8748637775692c"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".cc."1.0.72" = overridableMkRustCrate (profileName: rec {
     name = "cc";
     version = "1.0.72";
@@ -192,6 +390,55 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".concurrent-queue."1.2.4" = overridableMkRustCrate (profileName: rec {
+    name = "concurrent-queue";
+    version = "1.2.4";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "af4780a44ab5696ea9e28294517f1fffb421a83a25af521333c838635509db9c"; };
+    dependencies = {
+      cache_padded = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cache-padded."1.2.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".concurrent-queue."2.1.0" = overridableMkRustCrate (profileName: rec {
+    name = "concurrent-queue";
+    version = "2.1.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "c278839b831783b70278b14df4d45e1beb1aad306c07bb796637de9a0e323e8e"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "std" ]
+    ];
+    dependencies = {
+      crossbeam_utils = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crossbeam-utils."0.8.15" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".crossbeam-utils."0.8.15" = overridableMkRustCrate (profileName: rec {
+    name = "crossbeam-utils";
+    version = "0.8.15";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "3c063cd8cc95f5c377ed0d4b49a4b21f632396ff690e8470c29b3359b346984b"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "std" ]
+    ];
+    dependencies = {
+      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".ctor."0.1.26" = overridableMkRustCrate (profileName: rec {
+    name = "ctor";
+    version = "0.1.26";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "6d2301688392eb071b0bf1a37be05c469d3cc4dbbd95df672fe28ab021e6a096"; };
+    dependencies = {
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
+    };
+  });
+  
   "unknown".diplonat."0.1.0" = overridableMkRustCrate (profileName: rec {
     name = "diplonat";
     version = "0.1.0";
@@ -200,17 +447,18 @@ in
     dependencies = {
       anyhow = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".anyhow."1.0.28" { inherit profileName; }).out;
       envy = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".envy."0.4.2" { inherit profileName; }).out;
-      futures = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.5" { inherit profileName; }).out;
+      futures = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.28" { inherit profileName; }).out;
       get_if_addrs = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".get_if_addrs."0.5.3" { inherit profileName; }).out;
       igd = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".igd."0.12.0" { inherit profileName; }).out;
       iptables = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".iptables."0.2.2" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       pretty_env_logger = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pretty_env_logger."0.4.0" { inherit profileName; }).out;
       regex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".regex."1.3.7" { inherit profileName; }).out;
       reqwest = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".reqwest."0.11.8" { inherit profileName; }).out;
       serde = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde."1.0.107" { inherit profileName; }).out;
       serde_lexpr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde-lexpr."0.1.1" { inherit profileName; }).out;
       serde_json = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde_json."1.0.53" { inherit profileName; }).out;
+      stun_client = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".stun-client."0.1.2" { inherit profileName; }).out;
       tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.15.0" { inherit profileName; }).out;
     };
   });
@@ -240,7 +488,7 @@ in
     dependencies = {
       atty = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".atty."0.2.14" { inherit profileName; }).out;
       humantime = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".humantime."1.3.0" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       regex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".regex."1.3.7" { inherit profileName; }).out;
       termcolor = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".termcolor."1.1.0" { inherit profileName; }).out;
     };
@@ -256,6 +504,48 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".errno."0.3.0" = overridableMkRustCrate (profileName: rec {
+    name = "errno";
+    version = "0.3.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "50d6a0976c999d473fe89ad888d5a284e55366d9dc9038b1ba2aa15128c4afa0"; };
+    dependencies = {
+      ${ if hostPlatform.parsed.kernel.name == "dragonfly" then "errno_dragonfly" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".errno-dragonfly."0.1.2" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix || hostPlatform.parsed.kernel.name == "hermit" || hostPlatform.parsed.kernel.name == "wasi" then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "windows_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.45.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".errno-dragonfly."0.1.2" = overridableMkRustCrate (profileName: rec {
+    name = "errno-dragonfly";
+    version = "0.1.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"; };
+    dependencies = {
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+    };
+    buildDependencies = {
+      cc = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".cc."1.0.72" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".event-listener."2.5.3" = overridableMkRustCrate (profileName: rec {
+    name = "event-listener";
+    version = "2.5.3";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "0206175f82b8d6bf6652ff7d71a1e27fd2e4efde587fd368662814d6ec1d9ce0"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".fastrand."1.9.0" = overridableMkRustCrate (profileName: rec {
+    name = "fastrand";
+    version = "1.9.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "e51093e27b0797c359783294ca4f0a911c270184cb10f85783b118614a1501be"; };
+    dependencies = {
+      ${ if hostPlatform.parsed.cpu.name == "wasm32" && !(hostPlatform.parsed.kernel.name == "wasi") then "instant" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".instant."0.1.12" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".fnv."1.0.6" = overridableMkRustCrate (profileName: rec {
     name = "fnv";
     version = "1.0.6";
@@ -274,11 +564,11 @@ in
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "1e05b85ec287aac0dc34db7d4a569323df697f9c55b99b15d6b4ef8cde49f613"; };
+    src = fetchCratesIo { inherit name version; sha256 = "23342abe12aba583913b2e62f22225ff9c950774065e4bfb61a19cd9770fec40"; };
     features = builtins.concatLists [
       [ "alloc" ]
       [ "async-await" ]
@@ -288,21 +578,21 @@ in
       [ "std" ]
     ];
     dependencies = {
-      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.5" { inherit profileName; }).out;
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_executor = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.5" { inherit profileName; }).out;
-      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.5" { inherit profileName; }).out;
-      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" { inherit profileName; }).out;
-      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.5" { inherit profileName; }).out;
-      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" { inherit profileName; }).out;
+      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_executor = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.28" { inherit profileName; }).out;
+      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.28" { inherit profileName; }).out;
+      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" { inherit profileName; }).out;
+      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.28" { inherit profileName; }).out;
+      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-channel";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "f366ad74c28cca6ba456d95e6422883cfb4b252a83bed929c83abfdbbf2967d5"; };
+    src = fetchCratesIo { inherit name version; sha256 = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"; };
     features = builtins.concatLists [
       [ "alloc" ]
       [ "default" ]
@@ -311,16 +601,16 @@ in
       [ "std" ]
     ];
     dependencies = {
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-core";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "59f5fff90fd5d971f936ad674802482ba441b6f09ba5e15fd8b39145582ca399"; };
+    src = fetchCratesIo { inherit name version; sha256 = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"; };
     features = builtins.concatLists [
       [ "alloc" ]
       [ "default" ]
@@ -328,49 +618,75 @@ in
     ];
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-executor."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-executor";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "10d6bb888be1153d3abeb9006b11b02cf5e9b209fda28693c31ae1e4e012e314"; };
+    src = fetchCratesIo { inherit name version; sha256 = "ccecee823288125bd88b4d7f565c9e58e41858e47ab72e8ea2d64e93624386e0"; };
     features = builtins.concatLists [
       [ "std" ]
     ];
     dependencies = {
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.5" { inherit profileName; }).out;
-      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.28" { inherit profileName; }).out;
+      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-io";
-    version = "0.3.5";
+    version = "0.3.28";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "4fff74096e71ed47f8e023204cfd0aa1289cd54ae5430a9523be060cdb849964"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "std" ]
+    ];
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".futures-lite."1.12.0" = overridableMkRustCrate (profileName: rec {
+    name = "futures-lite";
+    version = "1.12.0";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "de27142b013a8e869c14957e6d2edeef89e97c289e69d042ee3a49acd8b51789"; };
+    src = fetchCratesIo { inherit name version; sha256 = "7694489acd39452c77daa48516b894c153f192c3578d5a839b62c58099fcbf48"; };
     features = builtins.concatLists [
+      [ "alloc" ]
+      [ "default" ]
+      [ "fastrand" ]
+      [ "futures-io" ]
+      [ "memchr" ]
+      [ "parking" ]
       [ "std" ]
+      [ "waker-fn" ]
     ];
+    dependencies = {
+      fastrand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".fastrand."1.9.0" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.28" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
+      parking = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".parking."2.0.0" { inherit profileName; }).out;
+      pin_project_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
+      waker_fn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".waker-fn."1.1.0" { inherit profileName; }).out;
+    };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-macro."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-macro."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-macro";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "d0b5a30a4328ab5473878237c447333c093297bded83a4983d10f4deea240d39"; };
+    src = fetchCratesIo { inherit name version; sha256 = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"; };
     dependencies = {
-      proc_macro_hack = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro-hack."0.5.11" { profileName = "__noProfile"; }).out;
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."2.0.13" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-sink";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "3f2032893cb734c7a05d85ce0cc8b8c4075278e93b24b66f9de99d6eb0fa8acc"; };
+    src = fetchCratesIo { inherit name version; sha256 = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e"; };
     features = builtins.concatLists [
       [ "alloc" ]
       [ "default" ]
@@ -378,26 +694,22 @@ in
     ];
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-task";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "bdb66b5f09e22019b1ab0830f7785bcea8e7a42148683f99214f73f8ec21a626"; };
+    src = fetchCratesIo { inherit name version; sha256 = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"; };
     features = builtins.concatLists [
       [ "alloc" ]
-      [ "once_cell" ]
       [ "std" ]
     ];
-    dependencies = {
-      once_cell = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.9.0" { inherit profileName; }).out;
-    };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" = overridableMkRustCrate (profileName: rec {
     name = "futures-util";
-    version = "0.3.5";
+    version = "0.3.28";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "8764574ff08b701a084482c3c7031349104b07ac897393010494beaa18ce32c6"; };
+    src = fetchCratesIo { inherit name version; sha256 = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"; };
     features = builtins.concatLists [
       [ "alloc" ]
       [ "async-await" ]
@@ -409,24 +721,20 @@ in
       [ "futures-sink" ]
       [ "io" ]
       [ "memchr" ]
-      [ "proc-macro-hack" ]
-      [ "proc-macro-nested" ]
       [ "sink" ]
       [ "slab" ]
       [ "std" ]
     ];
     dependencies = {
-      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.5" { inherit profileName; }).out;
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.5" { inherit profileName; }).out;
-      futures_macro = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-macro."0.3.5" { profileName = "__noProfile"; }).out;
-      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" { inherit profileName; }).out;
-      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.5" { inherit profileName; }).out;
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
-      pin_project = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project."0.4.8" { inherit profileName; }).out;
+      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_io = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-io."0.3.28" { inherit profileName; }).out;
+      futures_macro = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-macro."0.3.28" { profileName = "__noProfile"; }).out;
+      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" { inherit profileName; }).out;
+      futures_task = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-task."0.3.28" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
+      pin_project_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
       pin_utils = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-utils."0.1.0" { inherit profileName; }).out;
-      proc_macro_hack = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro-hack."0.5.11" { profileName = "__noProfile"; }).out;
-      proc_macro_nested = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro-nested."0.1.3" { inherit profileName; }).out;
       slab = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.2" { inherit profileName; }).out;
     };
   });
@@ -446,7 +754,7 @@ in
     dependencies = {
       c_linked_list = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".c_linked_list."1.1.1" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.kernel.name == "android" then "get_if_addrs_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".get_if_addrs-sys."0.1.1" { inherit profileName; }).out;
-      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.kernel.name == "windows" then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.2.8" { inherit profileName; }).out;
     };
   });
@@ -457,7 +765,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "0d04f9fb746cf36b191c00f3ede8bde9c8e64f9f4b05ae2694a9ccf5e3f5ab48"; };
     dependencies = {
-      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
     };
     buildDependencies = {
       gcc = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".gcc."0.3.55" { profileName = "__noProfile"; }).out;
@@ -474,11 +782,37 @@ in
     ];
     dependencies = {
       cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.kernel.name == "wasi" then "wasi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasi."0.10.2+wasi-snapshot-preview1" { inherit profileName; }).out;
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".glob."0.2.11" = overridableMkRustCrate (profileName: rec {
+    name = "glob";
+    version = "0.2.11";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".gloo-timers."0.2.6" = overridableMkRustCrate (profileName: rec {
+    name = "gloo-timers";
+    version = "0.2.6";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "9b995a66bb87bebce9a0f4a95aed01daca4872c050bfcb21653361c03bc35e5c"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "futures" ]
+      [ "futures-channel" ]
+      [ "futures-core" ]
+    ];
+    dependencies = {
+      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      js_sys = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".js-sys."0.3.55" { inherit profileName; }).out;
+      wasm_bindgen = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen."0.2.78" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".h2."0.3.9" = overridableMkRustCrate (profileName: rec {
     name = "h2";
     version = "0.3.9";
@@ -487,9 +821,9 @@ in
     dependencies = {
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
       fnv = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".fnv."1.0.6" { inherit profileName; }).out;
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" { inherit profileName; }).out;
-      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" { inherit profileName; }).out;
+      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
       http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" { inherit profileName; }).out;
       indexmap = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".indexmap."1.7.0" { inherit profileName; }).out;
       slab = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".slab."0.4.2" { inherit profileName; }).out;
@@ -518,10 +852,20 @@ in
       [ "default" ]
     ];
     dependencies = {
-      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".hermit-abi."0.3.1" = overridableMkRustCrate (profileName: rec {
+    name = "hermit-abi";
+    version = "0.3.1";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"; };
+    features = builtins.concatLists [
+      [ "default" ]
+    ];
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" = overridableMkRustCrate (profileName: rec {
     name = "http";
     version = "0.2.0";
@@ -590,9 +934,9 @@ in
     ];
     dependencies = {
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
-      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.5" { inherit profileName; }).out;
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" { inherit profileName; }).out;
+      futures_channel = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-channel."0.3.28" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_util = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
       h2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".h2."0.3.9" { inherit profileName; }).out;
       http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" { inherit profileName; }).out;
       http_body = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http-body."0.4.4" { inherit profileName; }).out;
@@ -651,10 +995,10 @@ in
     dependencies = {
       attohttpc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".attohttpc."0.16.3" { inherit profileName; }).out;
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
-      futures = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.5" { inherit profileName; }).out;
+      futures = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.28" { inherit profileName; }).out;
       http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" { inherit profileName; }).out;
       hyper = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.4" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       rand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.4" { inherit profileName; }).out;
       tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.15.0" { inherit profileName; }).out;
       url = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".url."2.2.2" { inherit profileName; }).out;
@@ -678,6 +1022,34 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".instant."0.1.12" = overridableMkRustCrate (profileName: rec {
+    name = "instant";
+    version = "0.1.12";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"; };
+    dependencies = {
+      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".io-lifetimes."1.0.9" = overridableMkRustCrate (profileName: rec {
+    name = "io-lifetimes";
+    version = "1.0.9";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "09270fd4fa1111bc614ed2246c7ef56239a3063d5be0d1ec3b589c505d400aeb"; };
+    features = builtins.concatLists [
+      [ "close" ]
+      [ "hermit-abi" ]
+      [ "libc" ]
+      [ "windows-sys" ]
+    ];
+    dependencies = {
+      ${ if hostPlatform.parsed.kernel.name == "hermit" then "hermit_abi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hermit-abi."0.3.1" { inherit profileName; }).out;
+      ${ if !hostPlatform.isWindows then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "windows_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.45.0" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".ipnet."2.3.1" = overridableMkRustCrate (profileName: rec {
     name = "ipnet";
     version = "2.3.1";
@@ -685,6 +1057,20 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "68f2d64f2edebec4ce84ad108148e67e1064789bee435edc5b60ad398714a3a9"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".ipnetwork."0.17.0" = overridableMkRustCrate (profileName: rec {
+    name = "ipnetwork";
+    version = "0.17.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "02c3eaab3ac0ede60ffa41add21970a7df7d91772c03383aac6c2c3d53cc716b"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "serde" ]
+    ];
+    dependencies = {
+      serde = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde."1.0.107" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".iptables."0.2.2" = overridableMkRustCrate (profileName: rec {
     name = "iptables";
     version = "0.2.2";
@@ -718,6 +1104,29 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".kernel32-sys."0.2.2" = overridableMkRustCrate (profileName: rec {
+    name = "kernel32-sys";
+    version = "0.2.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"; };
+    dependencies = {
+      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.2.8" { inherit profileName; }).out;
+    };
+    buildDependencies = {
+      build = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi-build."0.1.1" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".kv-log-macro."1.0.7" = overridableMkRustCrate (profileName: rec {
+    name = "kv-log-macro";
+    version = "1.0.7";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"; };
+    dependencies = {
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".lazy_static."0.2.11" = overridableMkRustCrate (profileName: rec {
     name = "lazy_static";
     version = "0.2.11";
@@ -756,33 +1165,64 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "cd627fb38e19c00d8d068618259205f7a91c91aeade5c15bc35dbca037bb1c35"; };
     dependencies = {
       proc_macro_hack = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro-hack."0.5.11" { profileName = "__noProfile"; }).out;
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" = overridableMkRustCrate (profileName: rec {
     name = "libc";
-    version = "0.2.112";
+    version = "0.2.141";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "1b03d17f364a3a042d5e5d46b053bbbf82c92c9430c592dd4c064dc6ee997125"; };
+    src = fetchCratesIo { inherit name version; sha256 = "3304a64d199bb964be99741b7a14d26972741915b3649639149b2479bb46f4b5"; };
     features = builtins.concatLists [
       [ "align" ]
       [ "default" ]
+      [ "extra_traits" ]
       [ "std" ]
     ];
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".linux-raw-sys."0.3.1" = overridableMkRustCrate (profileName: rec {
+    name = "linux-raw-sys";
+    version = "0.3.1";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "d59d8c75012853d2e872fb56bc8a2e53718e2cafe1a4c823143141c6d90c322f"; };
+    features = builtins.concatLists [
+      [ "errno" ]
+      [ "general" ]
+      [ "ioctl" ]
+      [ "no_std" ]
+    ];
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".log."0.3.9" = overridableMkRustCrate (profileName: rec {
+    name = "log";
+    version = "0.3.9";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "use_std" ]
+    ];
+    dependencies = {
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" = overridableMkRustCrate (profileName: rec {
     name = "log";
-    version = "0.4.8";
+    version = "0.4.17";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"; };
+    src = fetchCratesIo { inherit name version; sha256 = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"; };
     features = builtins.concatLists [
+      [ "kv_unstable" ]
       [ "std" ]
+      [ "value-bag" ]
     ];
     dependencies = {
-      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."0.1.10" { inherit profileName; }).out;
+      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
+      value_bag = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".value-bag."1.0.0-alpha.9" { inherit profileName; }).out;
     };
   });
   
@@ -793,11 +1233,11 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"; };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" = overridableMkRustCrate (profileName: rec {
     name = "memchr";
-    version = "2.3.0";
+    version = "2.5.0";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "3197e20c7edb283f87c071ddfc7a2cca8f8e0b888c242959846a6fce03c72223"; };
+    src = fetchCratesIo { inherit name version; sha256 = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"; };
     features = builtins.concatLists [
       [ "default" ]
       [ "std" ]
@@ -828,11 +1268,11 @@ in
       [ "uds" ]
     ];
     dependencies = {
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       ${ if hostPlatform.isWindows then "miow" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".miow."0.3.7" { inherit profileName; }).out;
       ${ if hostPlatform.isWindows then "ntapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".ntapi."0.3.4" { inherit profileName; }).out;
-      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -842,7 +1282,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"; };
     dependencies = {
-      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -854,7 +1294,7 @@ in
     dependencies = {
       bitflags = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bitflags."0.4.0" { inherit profileName; }).out;
       cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."0.1.10" { inherit profileName; }).out;
-      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
       void = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".void."1.0.2" { inherit profileName; }).out;
     };
     buildDependencies = {
@@ -873,7 +1313,7 @@ in
       [ "user" ]
     ];
     dependencies = {
-      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -884,7 +1324,7 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"; };
     dependencies = {
       ${ if (hostPlatform.parsed.cpu.name == "x86_64" || hostPlatform.parsed.cpu.name == "aarch64") && hostPlatform.parsed.kernel.name == "hermit" then "hermit_abi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hermit-abi."0.1.12" { inherit profileName; }).out;
-      ${ if !hostPlatform.isWindows then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      ${ if !hostPlatform.isWindows then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
     };
   });
   
@@ -895,11 +1335,19 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"; };
     features = builtins.concatLists [
       [ "alloc" ]
+      [ "default" ]
       [ "race" ]
       [ "std" ]
     ];
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".parking."2.0.0" = overridableMkRustCrate (profileName: rec {
+    name = "parking";
+    version = "2.0.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.1.0" = overridableMkRustCrate (profileName: rec {
     name = "percent-encoding";
     version = "2.1.0";
@@ -907,16 +1355,6 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"; };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".pin-project."0.4.8" = overridableMkRustCrate (profileName: rec {
-    name = "pin-project";
-    version = "0.4.8";
-    registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "7804a463a8d9572f13453c516a5faea534a2403d7ced2f0c7e100eeff072772c"; };
-    dependencies = {
-      pin_project_internal = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-internal."0.4.8" { profileName = "__noProfile"; }).out;
-    };
-  });
-  
   "registry+https://github.com/rust-lang/crates.io-index".pin-project."1.0.8" = overridableMkRustCrate (profileName: rec {
     name = "pin-project";
     version = "1.0.8";
@@ -927,27 +1365,15 @@ in
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".pin-project-internal."0.4.8" = overridableMkRustCrate (profileName: rec {
-    name = "pin-project-internal";
-    version = "0.4.8";
-    registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "385322a45f2ecf3410c68d2a549a4a2685e8051d0f278e39743ff4e451cb9b3f"; };
-    dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
-    };
-  });
-  
   "registry+https://github.com/rust-lang/crates.io-index".pin-project-internal."1.0.8" = overridableMkRustCrate (profileName: rec {
     name = "pin-project-internal";
     version = "1.0.8";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "6e8fe8163d14ce7f0cdac2e040116f22eac817edabff0be91e8aff7e9accf389"; };
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
     };
   });
   
@@ -965,6 +1391,128 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".pnet."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "b657d5b9a98a2c81b82549922b8b15984e49f8120cd130b11a09f81b9b55d633"; };
+    dependencies = {
+      ipnetwork = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".ipnetwork."0.17.0" { inherit profileName; }).out;
+      pnet_base = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" { inherit profileName; }).out;
+      pnet_datalink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_datalink."0.27.2" { inherit profileName; }).out;
+      pnet_packet = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_packet."0.27.2" { inherit profileName; }).out;
+      pnet_sys = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_sys."0.27.2" { inherit profileName; }).out;
+      pnet_transport = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_transport."0.27.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_base";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "4e4688aa497ef62129f302a5800ebde67825f8ff129f43690ca84099f6620bed"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_datalink."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_datalink";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "59001c9c4d9d23bf2f61afaaf134a766fd6932ba2557c606b9112157053b9ac7"; };
+    dependencies = {
+      ipnetwork = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".ipnetwork."0.17.0" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      pnet_base = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" { inherit profileName; }).out;
+      pnet_sys = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_sys."0.27.2" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_macros."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_macros";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "d894a90dbdbe976e624453fc31b1912f658083778329442dda1cca94f76a3e76"; };
+    features = builtins.concatLists [
+      [ "default" ]
+    ];
+    dependencies = {
+      regex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".regex."1.3.7" { inherit profileName; }).out;
+      syntex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex."0.42.2" { inherit profileName; }).out;
+      syntex_syntax = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_syntax."0.42.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_macros_support."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_macros_support";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "4b99269a458570bc06a9132254349f6543d9abc92e88b68d8de934aac9481f6c"; };
+    dependencies = {
+      pnet_base = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_packet."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_packet";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "33f8238f4eb897a55ca06510cd71afb5b5ca7b4ff2d7188f1ca855fc1710133e"; };
+    dependencies = {
+      pnet_base = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" { inherit profileName; }).out;
+      pnet_macros_support = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_macros_support."0.27.2" { inherit profileName; }).out;
+    };
+    buildDependencies = {
+      glob = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".glob."0.2.11" { profileName = "__noProfile"; }).out;
+      pnet_macros = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_macros."0.27.2" { profileName = "__noProfile"; }).out;
+      syntex = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex."0.42.2" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_sys."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_sys";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "7589e4c4e7ed72a3ffdff8a65d3bea84e8c3a23e19d0a10e8f45efdf632fff15"; };
+    dependencies = {
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".pnet_transport."0.27.2" = overridableMkRustCrate (profileName: rec {
+    name = "pnet_transport";
+    version = "0.27.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "326abdfd2e70e8e943bd58087b59686de170cac050a3b19c9fcc84db01690af5"; };
+    dependencies = {
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      pnet_base = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_base."0.27.2" { inherit profileName; }).out;
+      pnet_packet = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_packet."0.27.2" { inherit profileName; }).out;
+      pnet_sys = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet_sys."0.27.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".polling."2.5.2" = overridableMkRustCrate (profileName: rec {
+    name = "polling";
+    version = "2.5.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "22122d5ec4f9fe1b3916419b76be1e80bcb93f618d071d2edf841b137b2a2bd6"; };
+    features = builtins.concatLists [
+      [ "default" ]
+      [ "std" ]
+    ];
+    dependencies = {
+      cfg_if = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix || hostPlatform.parsed.kernel.name == "fuchsia" || hostPlatform.parsed.kernel.name == "vxworks" then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "wepoll_ffi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wepoll-ffi."0.1.2" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "windows_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.42.0" { inherit profileName; }).out;
+    };
+    buildDependencies = {
+      autocfg = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".autocfg."1.0.0" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".ppv-lite86."0.2.15" = overridableMkRustCrate (profileName: rec {
     name = "ppv-lite86";
     version = "0.2.15";
@@ -983,7 +1531,7 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"; };
     dependencies = {
       env_logger = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".env_logger."0.7.1" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
     };
   });
   
@@ -993,30 +1541,23 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "ecd45702f76d6d3c75a80564378ae228a85f0b59d2f3ed43c91b4a69eb2ebfc5"; };
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".proc-macro-nested."0.1.3" = overridableMkRustCrate (profileName: rec {
-    name = "proc-macro-nested";
-    version = "0.1.3";
-    registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"; };
-  });
-  
-  "registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" = overridableMkRustCrate (profileName: rec {
     name = "proc-macro2";
-    version = "1.0.34";
+    version = "1.0.56";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "2f84e92c0f7c9d58328b85a78557813e4bd845130db68d7184635344399423b1"; };
+    src = fetchCratesIo { inherit name version; sha256 = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"; };
     features = builtins.concatLists [
       [ "default" ]
       [ "proc-macro" ]
     ];
     dependencies = {
-      unicode_xid = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.2.0" { inherit profileName; }).out;
+      unicode_ident = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-ident."1.0.8" { inherit profileName; }).out;
     };
   });
   
@@ -1027,17 +1568,17 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"; };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" = overridableMkRustCrate (profileName: rec {
     name = "quote";
-    version = "1.0.2";
+    version = "1.0.26";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"; };
+    src = fetchCratesIo { inherit name version; sha256 = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"; };
     features = builtins.concatLists [
       [ "default" ]
       [ "proc-macro" ]
     ];
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
     };
   });
   
@@ -1057,7 +1598,7 @@ in
       [ "std_rng" ]
     ];
     dependencies = {
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.kernel.name == "emscripten") then "rand_chacha" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_chacha."0.3.1" { inherit profileName; }).out;
       rand_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_core."0.6.3" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.kernel.name == "emscripten" then "rand_hc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand_hc."0.3.1" { inherit profileName; }).out;
@@ -1113,7 +1654,7 @@ in
     ];
     dependencies = {
       aho_corasick = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".aho-corasick."0.6.10" { inherit profileName; }).out;
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
       regex_syntax = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".regex-syntax."0.5.6" { inherit profileName; }).out;
       thread_local = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".thread_local."0.3.6" { inherit profileName; }).out;
       utf8_ranges = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".utf8-ranges."1.0.4" { inherit profileName; }).out;
@@ -1147,7 +1688,7 @@ in
     ];
     dependencies = {
       aho_corasick = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".aho-corasick."0.7.10" { inherit profileName; }).out;
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
       regex_syntax = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".regex-syntax."0.6.17" { inherit profileName; }).out;
       thread_local = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".thread_local."1.0.1" { inherit profileName; }).out;
     };
@@ -1201,8 +1742,8 @@ in
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "base64" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".base64."0.13.0" { inherit profileName; }).out;
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "encoding_rs" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".encoding_rs."0.8.22" { inherit profileName; }).out;
-      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "futures_core" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "futures_util" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.5" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "futures_core" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "futures_util" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-util."0.3.28" { inherit profileName; }).out;
       http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.0" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "http_body" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http-body."0.4.4" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "hyper" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hyper."0.14.4" { inherit profileName; }).out;
@@ -1210,7 +1751,7 @@ in
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "ipnet" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".ipnet."2.3.1" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.cpu.name == "wasm32" then "js_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".js-sys."0.3.55" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "lazy_static" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".lazy_static."1.4.0" { inherit profileName; }).out;
-      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "log" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "log" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "mime" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".mime."0.3.16" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "percent_encoding" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".percent-encoding."2.1.0" { inherit profileName; }).out;
       ${ if !(hostPlatform.parsed.cpu.name == "wasm32") then "pin_project_lite" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
@@ -1241,18 +1782,25 @@ in
       [ "once_cell" ]
     ];
     dependencies = {
-      ${ if hostPlatform.parsed.kernel.name == "android" || hostPlatform.parsed.kernel.name == "linux" then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.kernel.name == "android" || hostPlatform.parsed.kernel.name == "linux" then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.kernel.name == "android" || hostPlatform.parsed.kernel.name == "linux" || hostPlatform.parsed.kernel.name == "dragonfly" || hostPlatform.parsed.kernel.name == "freebsd" || hostPlatform.parsed.kernel.name == "illumos" || hostPlatform.parsed.kernel.name == "netbsd" || hostPlatform.parsed.kernel.name == "openbsd" || hostPlatform.parsed.kernel.name == "solaris" then "once_cell" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".once_cell."1.9.0" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.cpu.name == "i686" || hostPlatform.parsed.cpu.name == "x86_64" || (hostPlatform.parsed.cpu.name == "aarch64" || hostPlatform.parsed.cpu.name == "armv6l" || hostPlatform.parsed.cpu.name == "armv7l") && (hostPlatform.parsed.kernel.name == "android" || hostPlatform.parsed.kernel.name == "fuchsia" || hostPlatform.parsed.kernel.name == "linux") then "spin" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".spin."0.5.2" { inherit profileName; }).out;
       untrusted = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".untrusted."0.7.1" { inherit profileName; }).out;
       ${ if hostPlatform.parsed.cpu.name == "wasm32" && hostPlatform.parsed.vendor.name == "unknown" && hostPlatform.parsed.kernel.name == "unknown" && hostPlatform.parsed.abi.name == "" then "web_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".web-sys."0.3.55" { inherit profileName; }).out;
-      ${ if hostPlatform.parsed.kernel.name == "windows" then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.kernel.name == "windows" then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
     buildDependencies = {
       cc = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".cc."1.0.72" { profileName = "__noProfile"; }).out;
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".rustc-serialize."0.3.24" = overridableMkRustCrate (profileName: rec {
+    name = "rustc-serialize";
+    version = "0.3.24";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".rustc_version."0.1.7" = overridableMkRustCrate (profileName: rec {
     name = "rustc_version";
     version = "0.1.7";
@@ -1263,6 +1811,26 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".rustix."0.37.7" = overridableMkRustCrate (profileName: rec {
+    name = "rustix";
+    version = "0.37.7";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "2aae838e49b3d63e9274e1c01833cc8139d3fec468c3b84688c628f44b1ae11d"; };
+    features = builtins.concatLists [
+      [ "fs" ]
+      [ "io-lifetimes" ]
+      [ "std" ]
+    ];
+    dependencies = {
+      bitflags = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bitflags."1.3.2" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.kernel.name == "linux" && (hostPlatform.parsed.cpu.name == "i686" || hostPlatform.parsed.cpu.name == "x86_64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.significantByte == "littleEndian" && (hostPlatform.parsed.cpu.name == "armv6l" || hostPlatform.parsed.cpu.name == "armv7l" || hostPlatform.parsed.cpu.name == "aarch64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.name == "powerpc64" || hostPlatform.parsed.cpu.name == "riscv64" || hostPlatform.parsed.cpu.name == "mips" || hostPlatform.parsed.cpu.name == "mips64"))) then "libc_errno" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".errno."0.3.0" { inherit profileName; }).out;
+      io_lifetimes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".io-lifetimes."1.0.9" { inherit profileName; }).out;
+      ${ if !(hostPlatform.parsed.kernel.name == "linux" && (hostPlatform.parsed.cpu.name == "i686" || hostPlatform.parsed.cpu.name == "x86_64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.significantByte == "littleEndian" && (hostPlatform.parsed.cpu.name == "armv6l" || hostPlatform.parsed.cpu.name == "armv7l" || hostPlatform.parsed.cpu.name == "aarch64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.name == "powerpc64" || hostPlatform.parsed.cpu.name == "riscv64" || hostPlatform.parsed.cpu.name == "mips" || hostPlatform.parsed.cpu.name == "mips64"))) then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.parsed.kernel.name == "linux" && (hostPlatform.parsed.cpu.name == "i686" || hostPlatform.parsed.cpu.name == "x86_64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.significantByte == "littleEndian" && (hostPlatform.parsed.cpu.name == "armv6l" || hostPlatform.parsed.cpu.name == "armv7l" || hostPlatform.parsed.cpu.name == "aarch64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.name == "powerpc64" || hostPlatform.parsed.cpu.name == "riscv64" || hostPlatform.parsed.cpu.name == "mips" || hostPlatform.parsed.cpu.name == "mips64")) || (hostPlatform.parsed.kernel.name == "android" || hostPlatform.parsed.kernel.name == "linux") && !(hostPlatform.parsed.kernel.name == "linux" && (hostPlatform.parsed.cpu.name == "i686" || hostPlatform.parsed.cpu.name == "x86_64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.significantByte == "littleEndian" && (hostPlatform.parsed.cpu.name == "armv6l" || hostPlatform.parsed.cpu.name == "armv7l" || hostPlatform.parsed.cpu.name == "aarch64" && hostPlatform.parsed.cpu.bits == 64 || hostPlatform.parsed.cpu.name == "powerpc64" || hostPlatform.parsed.cpu.name == "riscv64" || hostPlatform.parsed.cpu.name == "mips" || hostPlatform.parsed.cpu.name == "mips64"))) then "linux_raw_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".linux-raw-sys."0.3.1" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "windows_sys" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.45.0" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".rustls."0.20.2" = overridableMkRustCrate (profileName: rec {
     name = "rustls";
     version = "0.20.2";
@@ -1276,7 +1844,7 @@ in
       [ "tls12" ]
     ];
     dependencies = {
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       ring = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".ring."0.16.20" { inherit profileName; }).out;
       sct = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".sct."0.7.0" { inherit profileName; }).out;
       webpki = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".webpki."0.22.0" { inherit profileName; }).out;
@@ -1354,9 +1922,9 @@ in
       [ "default" ]
     ];
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
     };
   });
   
@@ -1410,8 +1978,22 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"; };
     dependencies = {
       ${ if hostPlatform.isUnix then "cfg_if" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".cfg-if."1.0.0" { inherit profileName; }).out;
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
-      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".socket2."0.4.9" = overridableMkRustCrate (profileName: rec {
+    name = "socket2";
+    version = "0.4.9";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"; };
+    features = builtins.concatLists [
+      [ "all" ]
+    ];
+    dependencies = {
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -1422,11 +2004,26 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"; };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".stun-client."0.1.2" = overridableMkRustCrate (profileName: rec {
+    name = "stun-client";
+    version = "0.1.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "ee0dfeef11f3744dc4784dcfde4d8cc91248fd3021db9ff10157768798e39a8e"; };
+    dependencies = {
+      async_macros = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-macros."2.0.0" { inherit profileName; }).out;
+      async_std = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".async-std."1.12.0" { inherit profileName; }).out;
+      futures = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures."0.3.28" { inherit profileName; }).out;
+      pnet = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pnet."0.27.2" { inherit profileName; }).out;
+      rand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.4" { inherit profileName; }).out;
+      thiserror = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".thiserror."1.0.40" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" = overridableMkRustCrate (profileName: rec {
     name = "syn";
-    version = "1.0.83";
+    version = "1.0.109";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "23a1dfb999630e338648c83e91c59a4e9fb7620f520c3194b6b89e276f2f1959"; };
+    src = fetchCratesIo { inherit name version; sha256 = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"; };
     features = builtins.concatLists [
       [ "clone-impls" ]
       [ "default" ]
@@ -1440,9 +2037,98 @@ in
       [ "visit-mut" ]
     ];
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      unicode_xid = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.2.0" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      unicode_ident = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-ident."1.0.8" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syn."2.0.13" = overridableMkRustCrate (profileName: rec {
+    name = "syn";
+    version = "2.0.13";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "4c9da457c5285ac1f936ebd076af6dac17a61cfe7826f2076b4d015cf47bc8ec"; };
+    features = builtins.concatLists [
+      [ "clone-impls" ]
+      [ "default" ]
+      [ "derive" ]
+      [ "full" ]
+      [ "parsing" ]
+      [ "printing" ]
+      [ "proc-macro" ]
+      [ "quote" ]
+    ];
+    dependencies = {
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      unicode_ident = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-ident."1.0.8" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syntex."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "syntex";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "0a30b08a6b383a22e5f6edc127d169670d48f905bb00ca79a00ea3e442ebe317"; };
+    dependencies = {
+      syntex_errors = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_errors."0.42.0" { inherit profileName; }).out;
+      syntex_syntax = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_syntax."0.42.0" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syntex_errors."0.42.0" = overridableMkRustCrate (profileName: rec {
+    name = "syntex_errors";
+    version = "0.42.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "04c48f32867b6114449155b2a82114b86d4b09e1bddb21c47ff104ab9172b646"; };
+    dependencies = {
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.3.9" { inherit profileName; }).out;
+      rustc_serialize = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rustc-serialize."0.3.24" { inherit profileName; }).out;
+      syntex_pos = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_pos."0.42.0" { inherit profileName; }).out;
+      term = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".term."0.4.6" { inherit profileName; }).out;
+      unicode_xid = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.0.3" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syntex_pos."0.42.0" = overridableMkRustCrate (profileName: rec {
+    name = "syntex_pos";
+    version = "0.42.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "3fd49988e52451813c61fecbe9abb5cfd4e1b7bb6cdbb980a6fbcbab859171a6"; };
+    dependencies = {
+      rustc_serialize = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rustc-serialize."0.3.24" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".syntex_syntax."0.42.0" = overridableMkRustCrate (profileName: rec {
+    name = "syntex_syntax";
+    version = "0.42.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "7628a0506e8f9666fdabb5f265d0059b059edac9a3f810bda077abb5d826bd8d"; };
+    dependencies = {
+      bitflags = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bitflags."0.5.0" { inherit profileName; }).out;
+      libc = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.3.9" { inherit profileName; }).out;
+      rustc_serialize = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rustc-serialize."0.3.24" { inherit profileName; }).out;
+      syntex_errors = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_errors."0.42.0" { inherit profileName; }).out;
+      syntex_pos = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syntex_pos."0.42.0" { inherit profileName; }).out;
+      term = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".term."0.4.6" { inherit profileName; }).out;
+      unicode_xid = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.0.3" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".term."0.4.6" = overridableMkRustCrate (profileName: rec {
+    name = "term";
+    version = "0.4.6";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"; };
+    features = builtins.concatLists [
+      [ "default" ]
+    ];
+    dependencies = {
+      ${ if hostPlatform.isWindows then "kernel32" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".kernel32-sys."0.2.2" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.2.8" { inherit profileName; }).out;
     };
   });
   
@@ -1456,6 +2142,28 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".thiserror."1.0.40" = overridableMkRustCrate (profileName: rec {
+    name = "thiserror";
+    version = "1.0.40";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"; };
+    dependencies = {
+      thiserror_impl = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".thiserror-impl."1.0.40" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".thiserror-impl."1.0.40" = overridableMkRustCrate (profileName: rec {
+    name = "thiserror-impl";
+    version = "1.0.40";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"; };
+    dependencies = {
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."2.0.13" { inherit profileName; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".thread_local."0.3.6" = overridableMkRustCrate (profileName: rec {
     name = "thread_local";
     version = "0.3.6";
@@ -1500,13 +2208,13 @@ in
     ];
     dependencies = {
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
-      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.112" { inherit profileName; }).out;
-      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.3.0" { inherit profileName; }).out;
+      ${ if hostPlatform.isUnix then "libc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".libc."0.2.141" { inherit profileName; }).out;
+      memchr = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".memchr."2.5.0" { inherit profileName; }).out;
       mio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".mio."0.7.14" { inherit profileName; }).out;
       num_cpus = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".num_cpus."1.13.1" { inherit profileName; }).out;
       pin_project_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
       tokio_macros = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio-macros."1.7.0" { profileName = "__noProfile"; }).out;
-      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -1516,9 +2224,9 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "b557f72f448c511a979e2564e55d74e6c4432fc96ff4f6241bc6bded342643b7"; };
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
     };
   });
   
@@ -1550,9 +2258,9 @@ in
     ];
     dependencies = {
       bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.1.0" { inherit profileName; }).out;
-      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.5" { inherit profileName; }).out;
-      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.5" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      futures_core = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-core."0.3.28" { inherit profileName; }).out;
+      futures_sink = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".futures-sink."0.3.28" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       pin_project_lite = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".pin-project-lite."0.2.7" { inherit profileName; }).out;
       tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.15.0" { inherit profileName; }).out;
     };
@@ -1621,6 +2329,13 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".unicode-ident."1.0.8" = overridableMkRustCrate (profileName: rec {
+    name = "unicode-ident";
+    version = "1.0.8";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".unicode-normalization."0.1.12" = overridableMkRustCrate (profileName: rec {
     name = "unicode-normalization";
     version = "0.1.12";
@@ -1631,11 +2346,11 @@ in
     };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.2.0" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".unicode-xid."0.0.3" = overridableMkRustCrate (profileName: rec {
     name = "unicode-xid";
-    version = "0.2.0";
+    version = "0.0.3";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"; };
+    src = fetchCratesIo { inherit name version; sha256 = "36dff09cafb4ec7c8cf0023eb0b686cb6ce65499116a12201c9e11840ca01beb"; };
     features = builtins.concatLists [
       [ "default" ]
     ];
@@ -1668,6 +2383,26 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "b4ae116fef2b7fea257ed6440d3cfcff7f190865f170cdad00bb6465bf18ecba"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".value-bag."1.0.0-alpha.9" = overridableMkRustCrate (profileName: rec {
+    name = "value-bag";
+    version = "1.0.0-alpha.9";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "2209b78d1249f7e6f3293657c9779fe31ced465df091bbd433a1cf88e916ec55"; };
+    dependencies = {
+      ctor = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".ctor."0.1.26" { profileName = "__noProfile"; }).out;
+    };
+    buildDependencies = {
+      rustc = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".version_check."0.9.4" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".version_check."0.9.4" = overridableMkRustCrate (profileName: rec {
+    name = "version_check";
+    version = "0.9.4";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".void."1.0.2" = overridableMkRustCrate (profileName: rec {
     name = "void";
     version = "1.0.2";
@@ -1679,13 +2414,20 @@ in
     ];
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".waker-fn."1.1.0" = overridableMkRustCrate (profileName: rec {
+    name = "waker-fn";
+    version = "1.1.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".want."0.3.0" = overridableMkRustCrate (profileName: rec {
     name = "want";
     version = "0.3.0";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"; };
     dependencies = {
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
       try_lock = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".try-lock."0.2.2" { inherit profileName; }).out;
     };
   });
@@ -1728,10 +2470,10 @@ in
     dependencies = {
       bumpalo = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bumpalo."3.2.0" { inherit profileName; }).out;
       lazy_static = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".lazy_static."1.4.0" { inherit profileName; }).out;
-      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.8" { inherit profileName; }).out;
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      log = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".log."0.4.17" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
       wasm_bindgen_shared = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen-shared."0.2.78" { inherit profileName; }).out;
     };
   });
@@ -1758,7 +2500,7 @@ in
       [ "spans" ]
     ];
     dependencies = {
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
       wasm_bindgen_macro_support = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen-macro-support."0.2.78" { inherit profileName; }).out;
     };
   });
@@ -1772,9 +2514,9 @@ in
       [ "spans" ]
     ];
     dependencies = {
-      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.34" { inherit profileName; }).out;
-      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.2" { inherit profileName; }).out;
-      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.83" { inherit profileName; }).out;
+      proc_macro2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".proc-macro2."1.0.56" { inherit profileName; }).out;
+      quote = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".quote."1.0.26" { inherit profileName; }).out;
+      syn = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".syn."1.0.109" { inherit profileName; }).out;
       wasm_bindgen_backend = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen-backend."0.2.78" { inherit profileName; }).out;
       wasm_bindgen_shared = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".wasm-bindgen-shared."0.2.78" { inherit profileName; }).out;
     };
@@ -1833,6 +2575,19 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".wepoll-ffi."0.1.2" = overridableMkRustCrate (profileName: rec {
+    name = "wepoll-ffi";
+    version = "0.1.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "d743fdedc5c64377b5fc2bc036b01c7fd642205a0d96356034ae3404d49eb7fb"; };
+    features = builtins.concatLists [
+      [ "null-overlapped-wakeups-patch" ]
+    ];
+    buildDependencies = {
+      cc = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".cc."1.0.72" { profileName = "__noProfile"; }).out;
+    };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".wildmatch."1.1.0" = overridableMkRustCrate (profileName: rec {
     name = "wildmatch";
     version = "1.1.0";
@@ -1847,11 +2602,11 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"; };
   });
   
-  "registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" = overridableMkRustCrate (profileName: rec {
+  "registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" = overridableMkRustCrate (profileName: rec {
     name = "winapi";
-    version = "0.3.8";
+    version = "0.3.9";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
-    src = fetchCratesIo { inherit name version; sha256 = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6"; };
+    src = fetchCratesIo { inherit name version; sha256 = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"; };
     features = builtins.concatLists [
       [ "cfg" ]
       [ "consoleapi" ]
@@ -1894,6 +2649,13 @@ in
     };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".winapi-build."0.1.1" = overridableMkRustCrate (profileName: rec {
+    name = "winapi-build";
+    version = "0.1.1";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".winapi-i686-pc-windows-gnu."0.4.0" = overridableMkRustCrate (profileName: rec {
     name = "winapi-i686-pc-windows-gnu";
     version = "0.4.0";
@@ -1907,7 +2669,7 @@ in
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"; };
     dependencies = {
-      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      ${ if hostPlatform.isWindows then "winapi" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
@@ -1918,13 +2680,128 @@ in
     src = fetchCratesIo { inherit name version; sha256 = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"; };
   });
   
+  "registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.42.0" = overridableMkRustCrate (profileName: rec {
+    name = "windows-sys";
+    version = "0.42.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"; };
+    features = builtins.concatLists [
+      [ "Win32" ]
+      [ "Win32_Foundation" ]
+      [ "Win32_System" ]
+      [ "Win32_System_IO" ]
+      [ "default" ]
+    ];
+    dependencies = {
+      ${ if hostPlatform.config == "aarch64-pc-windows-gnullvm" then "windows_aarch64_gnullvm" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_gnullvm."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "aarch64-pc-windows-msvc" || hostPlatform.config == "aarch64-uwp-windows-msvc" then "windows_aarch64_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_msvc."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "i686-pc-windows-gnu" || hostPlatform.config == "i686-uwp-windows-gnu" then "windows_i686_gnu" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_gnu."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "i686-pc-windows-msvc" || hostPlatform.config == "i686-uwp-windows-msvc" then "windows_i686_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_msvc."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-gnu" || hostPlatform.config == "x86_64-uwp-windows-gnu" then "windows_x86_64_gnu" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnu."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-gnullvm" then "windows_x86_64_gnullvm" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnullvm."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-msvc" || hostPlatform.config == "x86_64-uwp-windows-msvc" then "windows_x86_64_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_msvc."0.42.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows-sys."0.45.0" = overridableMkRustCrate (profileName: rec {
+    name = "windows-sys";
+    version = "0.45.0";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"; };
+    features = builtins.concatLists [
+      [ "Win32" ]
+      [ "Win32_Foundation" ]
+      [ "Win32_NetworkManagement" ]
+      [ "Win32_NetworkManagement_IpHelper" ]
+      [ "Win32_Networking" ]
+      [ "Win32_Networking_WinSock" ]
+      [ "Win32_Security" ]
+      [ "Win32_Storage" ]
+      [ "Win32_Storage_FileSystem" ]
+      [ "Win32_System" ]
+      [ "Win32_System_Diagnostics" ]
+      [ "Win32_System_Diagnostics_Debug" ]
+      [ "Win32_System_IO" ]
+      [ "Win32_System_Threading" ]
+      [ "default" ]
+    ];
+    dependencies = {
+      windows_targets = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows-targets."0.42.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows-targets."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows-targets";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"; };
+    dependencies = {
+      ${ if hostPlatform.config == "aarch64-pc-windows-gnullvm" then "windows_aarch64_gnullvm" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_gnullvm."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "aarch64-pc-windows-msvc" || hostPlatform.config == "aarch64-uwp-windows-msvc" then "windows_aarch64_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_msvc."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "i686-pc-windows-gnu" || hostPlatform.config == "i686-uwp-windows-gnu" then "windows_i686_gnu" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_gnu."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "i686-pc-windows-msvc" || hostPlatform.config == "i686-uwp-windows-msvc" then "windows_i686_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_i686_msvc."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-gnu" || hostPlatform.config == "x86_64-uwp-windows-gnu" then "windows_x86_64_gnu" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnu."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-gnullvm" then "windows_x86_64_gnullvm" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnullvm."0.42.2" { inherit profileName; }).out;
+      ${ if hostPlatform.config == "x86_64-pc-windows-msvc" || hostPlatform.config == "x86_64-uwp-windows-msvc" then "windows_x86_64_msvc" else null } = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_msvc."0.42.2" { inherit profileName; }).out;
+    };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_gnullvm."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_aarch64_gnullvm";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_aarch64_msvc."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_aarch64_msvc";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_i686_gnu."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_i686_gnu";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_i686_msvc."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_i686_msvc";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnu."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_x86_64_gnu";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_gnullvm."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_x86_64_gnullvm";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"; };
+  });
+  
+  "registry+https://github.com/rust-lang/crates.io-index".windows_x86_64_msvc."0.42.2" = overridableMkRustCrate (profileName: rec {
+    name = "windows_x86_64_msvc";
+    version = "0.42.2";
+    registry = "registry+https://github.com/rust-lang/crates.io-index";
+    src = fetchCratesIo { inherit name version; sha256 = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"; };
+  });
+  
   "registry+https://github.com/rust-lang/crates.io-index".winreg."0.7.0" = overridableMkRustCrate (profileName: rec {
     name = "winreg";
     version = "0.7.0";
     registry = "registry+https://github.com/rust-lang/crates.io-index";
     src = fetchCratesIo { inherit name version; sha256 = "0120db82e8a1e0b9fb3345a539c478767c0048d842860994d96113d5b667bd69"; };
     dependencies = {
-      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.8" { inherit profileName; }).out;
+      winapi = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".winapi."0.3.9" { inherit profileName; }).out;
     };
   });
   
diff --git a/Cargo.toml b/Cargo.toml
index f3c6f11..4765af1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,3 +21,4 @@ serde = { version = "1.0.107", features = ["derive"] }
 serde-lexpr = "0.1.1"
 serde_json = "1.0.53"
 tokio = { version = "1", features = ["sync", "rt-multi-thread", "net", "macros"] }
+stun-client = "0.1.2"
diff --git a/src/config/mod.rs b/src/config/mod.rs
index 2bf8f66..9281f44 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -3,11 +3,12 @@ mod options;
 mod options_test;
 mod runtime;
 
-pub use options::{ConfigOpts, ConfigOptsAcme, ConfigOptsBase, ConfigOptsConsul};
+pub use options::{ConfigOpts, ConfigOptsBase, ConfigOptsConsul};
 pub use runtime::{
-  RuntimeConfig, RuntimeConfigAcme, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd,
+    RuntimeConfig, RuntimeConfigConsul, RuntimeConfigFirewall, RuntimeConfigIgd, RuntimeConfigStun,
 };
 
 pub const EXPIRATION_TIME: u16 = 300;
 pub const REFRESH_TIME: u16 = 60;
 pub const CONSUL_URL: &str = "http://127.0.0.1:8500";
+pub const STUN_SERVER: &str = "stun.nextcloud.com:443";
diff --git a/src/config/options.rs b/src/config/options.rs
index 793838a..c31484f 100644
--- a/src/config/options.rs
+++ b/src/config/options.rs
@@ -11,77 +11,67 @@ use crate::config::RuntimeConfig;
 /// Base configuration options
 #[derive(Clone, Default, Deserialize)]
 pub struct ConfigOptsBase {
-  /// This node's private IP address [default: None]
-  pub private_ip: Option<String>,
-  /// Expiration time for IGD rules [default: 60]
-  pub expiration_time: Option<u16>,
-  /// Refresh time for IGD and Firewall rules [default: 300]
-  pub refresh_time: Option<u16>,
-}
-
-/// ACME configuration options
-#[derive(Clone, Default, Deserialize)]
-pub struct ConfigOptsAcme {
-  /// Whether ACME is enabled [default: false]
-  #[serde(default)]
-  pub enable: bool,
-
-  /// The default domain holder's e-mail [default: None]
-  pub email: Option<String>,
+    /// This node's private IP address [default: None]
+    pub private_ip: Option<String>,
+    /// Expiration time for IGD rules [default: 60]
+    pub expiration_time: Option<u16>,
+    /// Refresh time for IGD and Firewall rules [default: 300]
+    pub refresh_time: Option<u16>,
+    /// STUN server [default: stun.nextcloud.com:443]
+    pub stun_server: Option<String>,
+    /// IPv6-only mode (disables IGD, IPv4 firewall and IPv4 address autodiscovery) [default: false]
+    #[serde(default)]
+    pub ipv6_only: bool,
 }
 
 /// Consul configuration options
 #[derive(Clone, Default, Deserialize)]
 pub struct ConfigOptsConsul {
-  /// Consul's node name [default: None]
-  pub node_name: Option<String>,
-  /// Consul's REST URL [default: "http://127.0.0.1:8500"]
-  pub url: Option<String>,
-  /// Consul's CA certificate [default: None]
-  pub ca_cert: Option<String>,
-  /// Skip TLS verification for Consul server [default: false]
-  #[serde(default)]
-  pub tls_skip_verify: bool,
-  /// Consul's client certificate [default: None]
-  pub client_cert: Option<String>,
-  /// Consul's client key [default: None]
-  pub client_key: Option<String>,
+    /// Consul's node name [default: None]
+    pub node_name: Option<String>,
+    /// Consul's REST URL [default: "http://127.0.0.1:8500"]
+    pub url: Option<String>,
+    /// Consul's CA certificate [default: None]
+    pub ca_cert: Option<String>,
+    /// Skip TLS verification for Consul server [default: false]
+    #[serde(default)]
+    pub tls_skip_verify: bool,
+    /// Consul's client certificate [default: None]
+    pub client_cert: Option<String>,
+    /// Consul's client key [default: None]
+    pub client_key: Option<String>,
 }
 
 /// Model of all potential configuration options
 pub struct ConfigOpts {
-  pub base: ConfigOptsBase,
-  pub acme: ConfigOptsAcme,
-  pub consul: ConfigOptsConsul,
+    pub base: ConfigOptsBase,
+    pub consul: ConfigOptsConsul,
 }
 
 impl ConfigOpts {
-  pub fn from_env() -> Result<RuntimeConfig> {
-    let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_env()?;
-    let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
-    let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_env()?;
+    pub fn from_env() -> Result<RuntimeConfig> {
+        let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_env()?;
+        let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_env()?;
 
-    RuntimeConfig::new(Self {
-      base: base,
-      consul: consul,
-      acme: acme,
-    })
-  }
+        RuntimeConfig::new(Self {
+            base: base,
+            consul: consul,
+        })
+    }
 
-  // Currently only used in tests
-  #[allow(dead_code)]
-  pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
-  where
-    Iter: IntoIterator<Item = (String, String)>,
-  {
-    let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_iter(iter.clone())?;
-    let consul: ConfigOptsConsul = envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
-    let acme: ConfigOptsAcme = envy::prefixed("DIPLONAT_ACME_").from_iter(iter.clone())?;
+    // Currently only used in tests
+    #[cfg(test)]
+    pub fn from_iter<Iter: Clone>(iter: Iter) -> Result<RuntimeConfig>
+    where
+        Iter: IntoIterator<Item = (String, String)>,
+    {
+        let base: ConfigOptsBase = envy::prefixed("DIPLONAT_").from_iter(iter.clone())?;
+        let consul: ConfigOptsConsul =
+            envy::prefixed("DIPLONAT_CONSUL_").from_iter(iter.clone())?;
 
-    RuntimeConfig::new(Self {
-      base: base,
-      consul: consul,
-      acme: acme,
-    })
-  }
+        RuntimeConfig::new(Self {
+            base: base,
+            consul: consul,
+        })
+    }
 }
diff --git a/src/config/options_test.rs b/src/config/options_test.rs
index 6b91235..a028a4e 100644
--- a/src/config/options_test.rs
+++ b/src/config/options_test.rs
@@ -9,116 +9,111 @@ use crate::config::*;
 // This is why we only test ConfigOpts::from_iter(iter).
 
 fn minimal_valid_options() -> HashMap<String, String> {
-  let mut opts = HashMap::new();
-  opts.insert(
-    "DIPLONAT_CONSUL_NODE_NAME".to_string(),
-    "consul_node".to_string(),
-  );
-  opts
+    let mut opts = HashMap::new();
+    opts.insert(
+        "DIPLONAT_CONSUL_NODE_NAME".to_string(),
+        "consul_node".to_string(),
+    );
+    opts
 }
 
 fn all_valid_options() -> HashMap<String, String> {
-  let mut opts = minimal_valid_options();
-  opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "30".to_string());
-  opts.insert(
-    "DIPLONAT_PRIVATE_IP".to_string(),
-    "172.123.43.555".to_string(),
-  );
-  opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "10".to_string());
-  opts.insert(
-    "DIPLONAT_CONSUL_URL".to_string(),
-    "http://127.0.0.1:9999".to_string(),
-  );
-  opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
-  opts.insert(
-    "DIPLONAT_ACME_EMAIL".to_string(),
-    "bozo@bozo.net".to_string(),
-  );
-  opts
+    let mut opts = minimal_valid_options();
+    opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "30".to_string());
+    opts.insert(
+        "DIPLONAT_STUN_SERVER".to_string(),
+        "stun.nextcloud.com:443".to_string(),
+    );
+    opts.insert(
+        "DIPLONAT_PRIVATE_IP".to_string(),
+        "172.123.43.55".to_string(),
+    );
+    opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "10".to_string());
+    opts.insert(
+        "DIPLONAT_CONSUL_URL".to_string(),
+        "http://127.0.0.1:9999".to_string(),
+    );
+    opts.insert("DIPLONAT_ACME_ENABLE".to_string(), "true".to_string());
+    opts.insert(
+        "DIPLONAT_ACME_EMAIL".to_string(),
+        "bozo@bozo.net".to_string(),
+    );
+    opts
 }
 
 #[test]
 #[should_panic]
 fn err_empty_env() {
-  std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
-  ConfigOpts::from_env().unwrap();
+    std::env::remove_var("DIPLONAT_CONSUL_NODE_NAME");
+    ConfigOpts::from_env().unwrap();
 }
 
 #[test]
 fn ok_from_iter_minimal_valid_options() {
-  let opts = minimal_valid_options();
-  let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
+    let opts = minimal_valid_options();
+    let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
 
-  assert!(rt_config.acme.is_none());
-  assert_eq!(
-    &rt_config.consul.node_name,
-    opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
-  );
-  assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
-  assert_eq!(
-    rt_config.firewall.refresh_time,
-    Duration::from_secs(REFRESH_TIME.into())
-  );
-  assert!(rt_config.igd.private_ip.is_none());
-  assert_eq!(
-    rt_config.igd.expiration_time,
-    Duration::from_secs(EXPIRATION_TIME.into())
-  );
-  assert_eq!(
-    rt_config.igd.refresh_time,
-    Duration::from_secs(REFRESH_TIME.into())
-  );
+    assert_eq!(
+        &rt_config.consul.node_name,
+        opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
+    );
+    assert_eq!(rt_config.consul.url, CONSUL_URL.to_string());
+    assert_eq!(
+        rt_config.firewall.refresh_time,
+        Duration::from_secs(REFRESH_TIME.into())
+    );
+    let igd = rt_config.igd.unwrap();
+    assert!(igd.private_ip.is_none());
+    assert_eq!(
+        igd.expiration_time,
+        Duration::from_secs(EXPIRATION_TIME.into())
+    );
+    assert_eq!(igd.refresh_time, Duration::from_secs(REFRESH_TIME.into()));
 }
 
 #[test]
 #[should_panic]
 fn err_from_iter_invalid_refresh_time() {
-  let mut opts = minimal_valid_options();
-  opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "60".to_string());
-  opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "60".to_string());
-  ConfigOpts::from_iter(opts).unwrap();
+    let mut opts = minimal_valid_options();
+    opts.insert("DIPLONAT_EXPIRATION_TIME".to_string(), "60".to_string());
+    opts.insert("DIPLONAT_REFRESH_TIME".to_string(), "60".to_string());
+    ConfigOpts::from_iter(opts).unwrap();
 }
 
 #[test]
 fn ok_from_iter_all_valid_options() {
-  let opts = all_valid_options();
-  let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
+    let opts = all_valid_options();
+    let rt_config = ConfigOpts::from_iter(opts.clone()).unwrap();
 
-  let expiration_time = Duration::from_secs(
-    opts
-      .get(&"DIPLONAT_EXPIRATION_TIME".to_string())
-      .unwrap()
-      .parse::<u64>()
-      .unwrap()
-      .into(),
-  );
-  let refresh_time = Duration::from_secs(
-    opts
-      .get(&"DIPLONAT_REFRESH_TIME".to_string())
-      .unwrap()
-      .parse::<u64>()
-      .unwrap()
-      .into(),
-  );
+    let expiration_time = Duration::from_secs(
+        opts.get(&"DIPLONAT_EXPIRATION_TIME".to_string())
+            .unwrap()
+            .parse::<u64>()
+            .unwrap()
+            .into(),
+    );
+    let refresh_time = Duration::from_secs(
+        opts.get(&"DIPLONAT_REFRESH_TIME".to_string())
+            .unwrap()
+            .parse::<u64>()
+            .unwrap()
+            .into(),
+    );
 
-  assert!(rt_config.acme.is_some());
-  assert_eq!(
-    &rt_config.acme.unwrap().email,
-    opts.get(&"DIPLONAT_ACME_EMAIL".to_string()).unwrap()
-  );
-  assert_eq!(
-    &rt_config.consul.node_name,
-    opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
-  );
-  assert_eq!(
-    &rt_config.consul.url,
-    opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
-  );
-  assert_eq!(rt_config.firewall.refresh_time, refresh_time);
-  assert_eq!(
-    &rt_config.igd.private_ip.unwrap(),
-    opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
-  );
-  assert_eq!(rt_config.igd.expiration_time, expiration_time);
-  assert_eq!(rt_config.igd.refresh_time, refresh_time);
+    assert_eq!(
+        &rt_config.consul.node_name,
+        opts.get(&"DIPLONAT_CONSUL_NODE_NAME".to_string()).unwrap()
+    );
+    assert_eq!(
+        &rt_config.consul.url,
+        opts.get(&"DIPLONAT_CONSUL_URL".to_string()).unwrap()
+    );
+    assert_eq!(rt_config.firewall.refresh_time, refresh_time);
+    let igd = rt_config.igd.unwrap();
+    assert_eq!(
+        &igd.private_ip.unwrap().to_string(),
+        opts.get(&"DIPLONAT_PRIVATE_IP".to_string()).unwrap()
+    );
+    assert_eq!(igd.expiration_time, expiration_time);
+    assert_eq!(igd.refresh_time, refresh_time);
 }
diff --git a/src/config/runtime.rs b/src/config/runtime.rs
index 2e7b573..8084439 100644
--- a/src/config/runtime.rs
+++ b/src/config/runtime.rs
@@ -1,10 +1,11 @@
 use std::fs::File;
 use std::io::Read;
+use std::net::{Ipv4Addr, SocketAddr, ToSocketAddrs};
 use std::time::Duration;
 
-use anyhow::{anyhow, bail, Result};
+use anyhow::{anyhow, bail, Context, Result};
 
-use crate::config::{ConfigOpts, ConfigOptsAcme, ConfigOptsBase, ConfigOptsConsul};
+use crate::config::{ConfigOpts, ConfigOptsBase, ConfigOptsConsul};
 
 // This code is inspired by the Trunk crate (https://github.com/thedodd/trunk)
 
@@ -12,140 +13,179 @@ use crate::config::{ConfigOpts, ConfigOptsAcme, ConfigOptsBase, ConfigOptsConsul
 // RuntimeConfig. We apply default values and business logic.
 
 #[derive(Debug)]
-pub struct RuntimeConfigAcme {
-  pub email: String,
-}
-
-#[derive(Debug)]
 pub struct RuntimeConfigConsul {
-  pub node_name: String,
-  pub url: String,
-  pub tls: Option<(Option<reqwest::Certificate>, bool, reqwest::Identity)>,
+    pub node_name: String,
+    pub url: String,
+    pub tls: Option<(Option<reqwest::Certificate>, bool, reqwest::Identity)>,
 }
 
 #[derive(Debug)]
 pub struct RuntimeConfigFirewall {
-  pub refresh_time: Duration,
+    pub ipv6_only: bool,
+    pub refresh_time: Duration,
 }
 
 #[derive(Debug)]
 pub struct RuntimeConfigIgd {
-  pub private_ip: Option<String>,
-  pub expiration_time: Duration,
-  pub refresh_time: Duration,
+    pub private_ip: Option<Ipv4Addr>,
+    pub expiration_time: Duration,
+    pub refresh_time: Duration,
 }
 
 #[derive(Debug)]
-pub struct RuntimeConfig {
-  pub acme: Option<RuntimeConfigAcme>,
-  pub consul: RuntimeConfigConsul,
-  pub firewall: RuntimeConfigFirewall,
-  pub igd: RuntimeConfigIgd,
+pub struct RuntimeConfigStun {
+    pub stun_server_v4: Option<SocketAddr>,
+    pub stun_server_v6: SocketAddr,
+    pub refresh_time: Duration,
 }
 
-impl RuntimeConfig {
-  pub fn new(opts: ConfigOpts) -> Result<Self> {
-    let acme = RuntimeConfigAcme::new(opts.acme.clone())?;
-    let consul = RuntimeConfigConsul::new(opts.consul.clone())?;
-    let firewall = RuntimeConfigFirewall::new(opts.base.clone())?;
-    let igd = RuntimeConfigIgd::new(opts.base.clone())?;
-
-    Ok(Self {
-      acme,
-      consul,
-      firewall,
-      igd,
-    })
-  }
+#[derive(Debug)]
+pub struct RuntimeConfig {
+    pub consul: RuntimeConfigConsul,
+    pub firewall: RuntimeConfigFirewall,
+    pub igd: Option<RuntimeConfigIgd>,
+    pub stun: RuntimeConfigStun,
 }
 
-impl RuntimeConfigAcme {
-  pub fn new(opts: ConfigOptsAcme) -> Result<Option<Self>> {
-    if !opts.enable {
-      return Ok(None);
+impl RuntimeConfig {
+    pub fn new(opts: ConfigOpts) -> Result<Self> {
+        let consul = RuntimeConfigConsul::new(opts.consul)?;
+        let firewall = RuntimeConfigFirewall::new(&opts.base)?;
+        let igd = match opts.base.ipv6_only {
+            false => Some(RuntimeConfigIgd::new(&opts.base)?),
+            true => None,
+        };
+        let stun = RuntimeConfigStun::new(&opts.base)?;
+
+        Ok(Self {
+            consul,
+            firewall,
+            igd,
+            stun,
+        })
     }
-
-    let email = opts.email.expect(
-      "'DIPLONAT_ACME_EMAIL' environment variable is required if 'DIPLONAT_ACME_ENABLE' == 'true'",
-    );
-
-    Ok(Some(Self { email }))
-  }
 }
 
 impl RuntimeConfigConsul {
-  pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
-    let node_name = opts
-      .node_name
-      .expect("'DIPLONAT_CONSUL_NODE_NAME' environment variable is required");
-    let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
-
-    let tls = match (&opts.client_cert, &opts.client_key) {
-      (Some(client_cert), Some(client_key)) => {
-        let cert = match &opts.ca_cert {
-          Some(ca_cert) => {
-            let mut ca_cert_buf = vec![];
-            File::open(ca_cert)?.read_to_end(&mut ca_cert_buf)?;
-            Some(reqwest::Certificate::from_pem(&ca_cert_buf[..])?)
-          }
-          None => None,
+    pub(super) fn new(opts: ConfigOptsConsul) -> Result<Self> {
+        let node_name = opts
+            .node_name
+            .expect("'DIPLONAT_CONSUL_NODE_NAME' environment variable is required");
+        let url = opts.url.unwrap_or(super::CONSUL_URL.to_string());
+
+        let tls = match (&opts.client_cert, &opts.client_key) {
+            (Some(client_cert), Some(client_key)) => {
+                let cert = match &opts.ca_cert {
+                    Some(ca_cert) => {
+                        let mut ca_cert_buf = vec![];
+                        File::open(ca_cert)?.read_to_end(&mut ca_cert_buf)?;
+                        Some(reqwest::Certificate::from_pem(&ca_cert_buf[..])?)
+                    }
+                    None => None,
+                };
+
+                let mut client_cert_buf = vec![];
+                File::open(client_cert)?.read_to_end(&mut client_cert_buf)?;
+
+                let mut client_key_buf = vec![];
+                File::open(client_key)?.read_to_end(&mut client_key_buf)?;
+
+                let ident = reqwest::Identity::from_pem(
+                    &[&client_cert_buf[..], &client_key_buf[..]].concat()[..],
+                )?;
+
+                Some((cert, opts.tls_skip_verify, ident))
+            }
+            (None, None) => None,
+            _ => bail!("Incomplete TLS configuration parameters"),
         };
 
-        let mut client_cert_buf = vec![];
-        File::open(client_cert)?.read_to_end(&mut client_cert_buf)?;
-
-        let mut client_key_buf = vec![];
-        File::open(client_key)?.read_to_end(&mut client_key_buf)?;
-
-        let ident =
-          reqwest::Identity::from_pem(&[&client_cert_buf[..], &client_key_buf[..]].concat()[..])?;
-
-        Some((cert, opts.tls_skip_verify, ident))
-      }
-      (None, None) => None,
-      _ => bail!("Incomplete TLS configuration parameters"),
-    };
-
-    Ok(Self {
-      node_name,
-      url,
-      tls,
-    })
-  }
+        Ok(Self {
+            node_name,
+            url,
+            tls,
+        })
+    }
 }
 
 impl RuntimeConfigFirewall {
-  pub(super) fn new(opts: ConfigOptsBase) -> Result<Self> {
-    let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
-
-    Ok(Self { refresh_time })
-  }
+    pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
+        let refresh_time =
+            Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
+
+        Ok(Self {
+            refresh_time,
+            ipv6_only: opts.ipv6_only,
+        })
+    }
 }
 
 impl RuntimeConfigIgd {
-  pub(super) fn new(opts: ConfigOptsBase) -> Result<Self> {
-    let private_ip = opts.private_ip;
-    let expiration_time = Duration::from_secs(
-      opts
-        .expiration_time
-        .unwrap_or(super::EXPIRATION_TIME)
-        .into(),
-    );
-    let refresh_time = Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
-
-    if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
-      return Err(anyhow!(
+    pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
+        let private_ip = opts
+            .private_ip
+            .as_ref()
+            .map(|x| x.parse())
+            .transpose()
+            .context("parse private_ip")?;
+        let expiration_time = Duration::from_secs(
+            opts.expiration_time
+                .unwrap_or(super::EXPIRATION_TIME)
+                .into(),
+        );
+        let refresh_time =
+            Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
+
+        if refresh_time.as_secs() * 2 > expiration_time.as_secs() {
+            return Err(anyhow!(
         "IGD expiration time (currently: {}s) must be at least twice bigger than refresh time \
          (currently: {}s)",
         expiration_time.as_secs(),
         refresh_time.as_secs()
       ));
+        }
+
+        Ok(Self {
+            private_ip,
+            expiration_time,
+            refresh_time,
+        })
     }
+}
 
-    Ok(Self {
-      private_ip,
-      expiration_time,
-      refresh_time,
-    })
-  }
+impl RuntimeConfigStun {
+    pub(super) fn new(opts: &ConfigOptsBase) -> Result<Self> {
+        let mut stun_server_v4 = None;
+        let mut stun_server_v6 = None;
+        for addr in opts
+            .stun_server
+            .as_deref()
+            .unwrap_or(super::STUN_SERVER)
+            .to_socket_addrs()?
+        {
+            if addr.is_ipv4() {
+                stun_server_v4 = Some(addr);
+            }
+            if addr.is_ipv6() {
+                stun_server_v6 = Some(addr);
+            }
+        }
+
+        let refresh_time =
+            Duration::from_secs(opts.refresh_time.unwrap_or(super::REFRESH_TIME).into());
+
+        let stun_server_v4 = match opts.ipv6_only {
+            false => Some(
+                stun_server_v4.ok_or(anyhow!("Unable to resolve STUN server's IPv4 address"))?,
+            ),
+            true => None,
+        };
+
+        Ok(Self {
+            stun_server_v4,
+            stun_server_v6: stun_server_v6
+                .ok_or(anyhow!("Unable to resolve STUN server's IPv6 address"))?,
+            refresh_time,
+        })
+    }
 }
diff --git a/src/consul.rs b/src/consul.rs
index c7ac2b6..7f695b2 100644
--- a/src/consul.rs
+++ b/src/consul.rs
@@ -7,71 +7,80 @@ use crate::config::RuntimeConfigConsul;
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct ServiceEntry {
-  pub Tags: Vec<String>,
+    #[serde(rename = "Tags")]
+    pub tags: Vec<String>,
 }
 
-#[derive(Serialize, Deserialize, Debug)]
+#[derive(Serialize, Deserialize, Debug, Default)]
 pub struct CatalogNode {
-  pub Services: HashMap<String, ServiceEntry>,
+    #[serde(rename = "Services")]
+    pub services: HashMap<String, ServiceEntry>,
 }
 
 pub struct Consul {
-  client: reqwest::Client,
-  url: String,
-  idx: Option<u64>,
+    client: reqwest::Client,
+    url: String,
+    idx: Option<u64>,
 }
 
 impl Consul {
-  pub fn new(config: &RuntimeConfigConsul) -> Self {
-    let client = if let Some((ca, skip_verify, ident)) = config.tls.clone() {
-      if skip_verify {
-        reqwest::Client::builder()
-          .use_rustls_tls()
-          .danger_accept_invalid_certs(true)
-          .identity(ident)
-          .build()
-          .expect("Unable to build reqwest client")
-      } else if let Some(ca) = ca {
-        reqwest::Client::builder()
-          .use_rustls_tls()
-          .add_root_certificate(ca)
-          .identity(ident)
-          .build()
-          .expect("Unable to build reqwest client")
-      } else {
-        reqwest::Client::builder()
-          .use_rustls_tls()
-          .identity(ident)
-          .build()
-          .expect("Unable to build reqwest client")
-      }
-    } else {
-      reqwest::Client::new()
-    };
-    return Self {
-      client,
-      url: config.url.clone(),
-      idx: None,
-    };
-  }
+    pub fn new(config: &RuntimeConfigConsul) -> Self {
+        let client = if let Some((ca, skip_verify, ident)) = config.tls.clone() {
+            if skip_verify {
+                reqwest::Client::builder()
+                    .use_rustls_tls()
+                    .danger_accept_invalid_certs(true)
+                    .identity(ident)
+                    .build()
+                    .expect("Unable to build reqwest client")
+            } else if let Some(ca) = ca {
+                reqwest::Client::builder()
+                    .use_rustls_tls()
+                    .add_root_certificate(ca)
+                    .identity(ident)
+                    .build()
+                    .expect("Unable to build reqwest client")
+            } else {
+                reqwest::Client::builder()
+                    .use_rustls_tls()
+                    .identity(ident)
+                    .build()
+                    .expect("Unable to build reqwest client")
+            }
+        } else {
+            reqwest::Client::new()
+        };
+        return Self {
+            client,
+            url: config.url.clone(),
+            idx: None,
+        };
+    }
+
+    pub fn watch_node_reset(&mut self) -> () {
+        self.idx = None;
+    }
 
-  pub fn watch_node_reset(&mut self) -> () {
-    self.idx = None;
-  }
+    pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
+        let url = match self.idx {
+            Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i),
+            None => format!("{}/v1/catalog/node/{}", self.url, host),
+        };
 
-  pub async fn watch_node(&mut self, host: &str) -> Result<CatalogNode> {
-    let url = match self.idx {
-      Some(i) => format!("{}/v1/catalog/node/{}?index={}", self.url, host, i),
-      None => format!("{}/v1/catalog/node/{}", self.url, host),
-    };
+        let http = self.client.get(&url).send().await?;
+        self.idx = match http.headers().get("X-Consul-Index") {
+            Some(v) => Some(v.to_str()?.parse::<u64>()?),
+            None => return Err(anyhow!("X-Consul-Index header not found")),
+        };
 
-    let http = self.client.get(&url).send().await?;
-    self.idx = match http.headers().get("X-Consul-Index") {
-      Some(v) => Some(v.to_str()?.parse::<u64>()?),
-      None => return Err(anyhow!("X-Consul-Index header not found")),
-    };
+        let resp: Option<CatalogNode> = http.json().await?;
+        return Ok(resp.unwrap_or_default());
+    }
 
-    let resp: CatalogNode = http.json().await?;
-    return Ok(resp);
-  }
+    pub async fn kv_put(&self, key: &str, bytes: Vec<u8>) -> Result<()> {
+        let url = format!("{}/v1/kv/{}", self.url, key);
+        let http = self.client.put(&url).body(bytes).send().await?;
+        http.error_for_status()?;
+        Ok(())
+    }
 }
diff --git a/src/consul_actor.rs b/src/consul_actor.rs
index 8b722b6..c099215 100644
--- a/src/consul_actor.rs
+++ b/src/consul_actor.rs
@@ -11,107 +11,110 @@ use crate::{consul, messages};
 
 #[derive(Serialize, Deserialize, Debug)]
 pub enum DiplonatParameter {
-  tcp_port(HashSet<u16>),
-  udp_port(HashSet<u16>),
+    #[serde(rename = "tcp_port")]
+    TcpPort(HashSet<u16>),
+    #[serde(rename = "udp_port")]
+    UdpPort(HashSet<u16>),
 }
 
 #[derive(Serialize, Deserialize, Debug)]
 pub enum DiplonatConsul {
-  diplonat(Vec<DiplonatParameter>),
+    #[serde(rename = "diplonat")]
+    Diplonat(Vec<DiplonatParameter>),
 }
 
 pub struct ConsulActor {
-  pub rx_open_ports: watch::Receiver<messages::PublicExposedPorts>,
+    pub rx_open_ports: watch::Receiver<messages::PublicExposedPorts>,
 
-  consul: consul::Consul,
-  node: String,
-  retries: u32,
-  tx_open_ports: watch::Sender<messages::PublicExposedPorts>,
+    consul: consul::Consul,
+    node: String,
+    retries: u32,
+    tx_open_ports: watch::Sender<messages::PublicExposedPorts>,
 }
 
 fn retry_to_time(retries: u32, max_time: Duration) -> Duration {
-  // 1.2^x seems to be a good value to exponentially increase time at a good pace
-  // eg. 1.2^32 = 341 seconds ~= 5 minutes - ie. after 32 retries we wait 5
-  // minutes
-  return Duration::from_secs(cmp::min(
-    max_time.as_secs(),
-    1.2f64.powf(retries as f64) as u64,
-  ));
+    // 1.2^x seems to be a good value to exponentially increase time at a good pace
+    // eg. 1.2^32 = 341 seconds ~= 5 minutes - ie. after 32 retries we wait 5
+    // minutes
+    return Duration::from_secs(cmp::min(
+        max_time.as_secs(),
+        1.2f64.powf(retries as f64) as u64,
+    ));
 }
 
 fn to_parameters(catalog: &consul::CatalogNode) -> Vec<DiplonatConsul> {
-  let mut r = Vec::new();
-
-  for (_, service_info) in &catalog.Services {
-    for tag in &service_info.Tags {
-      let diplo_conf: error::Result<DiplonatConsul> = from_str(tag);
-      match diplo_conf {
-        Ok(conf) => r.push(conf),
-        Err(e) => debug!("Failed to parse entry {}. {}", tag, e),
-      };
+    let mut r = Vec::new();
+
+    for (_, service_info) in &catalog.services {
+        for tag in &service_info.tags {
+            let diplo_conf: error::Result<DiplonatConsul> = from_str(tag);
+            match diplo_conf {
+                Ok(conf) => r.push(conf),
+                Err(e) => debug!("Failed to parse entry {}. {}", tag, e),
+            };
+        }
     }
-  }
 
-  return r;
+    return r;
 }
 
 fn to_open_ports(params: &Vec<DiplonatConsul>) -> messages::PublicExposedPorts {
-  let mut op = messages::PublicExposedPorts {
-    tcp_ports: HashSet::new(),
-    udp_ports: HashSet::new(),
-  };
-
-  for conf in params {
-    let DiplonatConsul::diplonat(c) = conf;
-    for parameter in c {
-      match parameter {
-        DiplonatParameter::tcp_port(p) => op.tcp_ports.extend(p),
-        DiplonatParameter::udp_port(p) => op.udp_ports.extend(p),
-      };
+    let mut op = messages::PublicExposedPorts {
+        tcp_ports: HashSet::new(),
+        udp_ports: HashSet::new(),
+    };
+
+    for conf in params {
+        let DiplonatConsul::Diplonat(c) = conf;
+        for parameter in c {
+            match parameter {
+                DiplonatParameter::TcpPort(p) => op.tcp_ports.extend(p),
+                DiplonatParameter::UdpPort(p) => op.udp_ports.extend(p),
+            };
+        }
     }
-  }
 
-  return op;
+    return op;
 }
 
 impl ConsulActor {
-  pub fn new(config: &RuntimeConfigConsul, node: &str) -> Self {
-    let (tx, rx) = watch::channel(messages::PublicExposedPorts {
-      tcp_ports: HashSet::new(),
-      udp_ports: HashSet::new(),
-    });
-
-    return Self {
-      consul: consul::Consul::new(config),
-      rx_open_ports: rx,
-      tx_open_ports: tx,
-      node: node.to_string(),
-      retries: 0,
-    };
-  }
-
-  pub async fn listen(&mut self) -> Result<()> {
-    loop {
-      let catalog = match self.consul.watch_node(&self.node).await {
-        Ok(c) => c,
-        Err(e) => {
-          self.consul.watch_node_reset();
-          self.retries = cmp::min(std::u32::MAX - 1, self.retries) + 1;
-          let will_retry_in = retry_to_time(self.retries, Duration::from_secs(600));
-          error!(
-            "Failed to query consul. Will retry in {}s. {}",
-            will_retry_in.as_secs(),
-            e
-          );
-          sleep(will_retry_in).await;
-          continue;
-        }
-      };
-      self.retries = 0;
-      let msg = to_open_ports(&to_parameters(&catalog));
-      debug!("Extracted configuration: {:#?}", msg);
+    pub fn new(config: &RuntimeConfigConsul, node: &str) -> Self {
+        let (tx, rx) = watch::channel(messages::PublicExposedPorts {
+            tcp_ports: HashSet::new(),
+            udp_ports: HashSet::new(),
+        });
+
+        return Self {
+            consul: consul::Consul::new(config),
+            rx_open_ports: rx,
+            tx_open_ports: tx,
+            node: node.to_string(),
+            retries: 0,
+        };
+    }
 
-      self.tx_open_ports.send(msg)?;
+    pub async fn listen(&mut self) -> Result<()> {
+        loop {
+            let catalog = match self.consul.watch_node(&self.node).await {
+                Ok(c) => c,
+                Err(e) => {
+                    self.consul.watch_node_reset();
+                    self.retries = cmp::min(std::u32::MAX - 1, self.retries) + 1;
+                    let will_retry_in = retry_to_time(self.retries, Duration::from_secs(600));
+                    error!(
+                        "Failed to query consul. Will retry in {}s. {}",
+                        will_retry_in.as_secs(),
+                        e
+                    );
+                    sleep(will_retry_in).await;
+                    continue;
+                }
+            };
+            self.retries = 0;
+            let msg = to_open_ports(&to_parameters(&catalog));
+            debug!("Extracted configuration: {:#?}", msg);
+
+            self.tx_open_ports.send(msg)?;
+        }
     }
-  }
 }
diff --git a/src/diplonat.rs b/src/diplonat.rs
index 22ebd6e..96bac3b 100644
--- a/src/diplonat.rs
+++ b/src/diplonat.rs
@@ -1,49 +1,78 @@
-use anyhow::Result;
+use anyhow::{Context, Result};
+use futures::future::FutureExt;
 use tokio::try_join;
 
 use crate::{
-  config::ConfigOpts, consul_actor::ConsulActor, fw_actor::FirewallActor, igd_actor::IgdActor,
+    config::ConfigOpts, consul_actor::ConsulActor, fw_actor::FirewallActor, igd_actor::IgdActor,
+    stun_actor::StunActor,
 };
 
 pub struct Diplonat {
-  consul: ConsulActor,
-  firewall: FirewallActor,
-  igd: IgdActor,
+    consul: ConsulActor,
+    firewall: FirewallActor,
+    igd: Option<IgdActor>,
+    stun: StunActor,
 }
 
 impl Diplonat {
-  pub async fn new() -> Result<Self> {
-    let rt_cfg = ConfigOpts::from_env()?;
-    println!("{:#?}", rt_cfg);
-
-    let ca = ConsulActor::new(&rt_cfg.consul, &rt_cfg.consul.node_name);
-
-    let fw = FirewallActor::new(rt_cfg.firewall.refresh_time, &ca.rx_open_ports).await?;
-
-    let ia = IgdActor::new(
-      rt_cfg.igd.private_ip.as_ref().map(String::as_str),
-      rt_cfg.igd.refresh_time,
-      rt_cfg.igd.expiration_time,
-      &ca.rx_open_ports,
-    )
-    .await?;
-
-    let ctx = Self {
-      consul: ca,
-      igd: ia,
-      firewall: fw,
-    };
-
-    return Ok(ctx);
-  }
-
-  pub async fn listen(&mut self) -> Result<()> {
-    try_join!(
-      self.consul.listen(),
-      self.igd.listen(),
-      self.firewall.listen()
-    )?;
-
-    return Ok(());
-  }
+    pub async fn new() -> Result<Self> {
+        let rt_cfg = ConfigOpts::from_env().context("Parse configuration")?;
+        println!("{:#?}", rt_cfg);
+
+        let ca = ConsulActor::new(&rt_cfg.consul, &rt_cfg.consul.node_name);
+
+        let fw = FirewallActor::new(
+            rt_cfg.firewall.ipv6_only,
+            rt_cfg.firewall.refresh_time,
+            &ca.rx_open_ports,
+        )
+        .await
+        .context("Setup fireall actor")?;
+
+        let ia = match rt_cfg.igd {
+            Some(igdc) => Some(
+                IgdActor::new(
+                    igdc.private_ip,
+                    igdc.refresh_time,
+                    igdc.expiration_time,
+                    &ca.rx_open_ports,
+                )
+                .await
+                .context("Setup IGD actor")?,
+            ),
+            None => None,
+        };
+
+        let sa = StunActor::new(&rt_cfg.consul, &rt_cfg.stun, &rt_cfg.consul.node_name);
+
+        let ctx = Self {
+            consul: ca,
+            igd: ia,
+            firewall: fw,
+            stun: sa,
+        };
+
+        Ok(ctx)
+    }
+
+    pub async fn listen(&mut self) -> Result<()> {
+        let igd_opt = &mut self.igd;
+
+        try_join!(
+            self.consul.listen().map(|x| x.context("Run consul actor")),
+            async {
+                if let Some(igd) = igd_opt {
+                    igd.listen().await.context("Run IGD actor")
+                } else {
+                    Ok(())
+                }
+            },
+            self.firewall
+                .listen()
+                .map(|x| x.context("Run firewall actor")),
+            self.stun.listen().map(|x| x.context("Run STUN actor")),
+        )?;
+
+        Ok(())
+    }
 }
diff --git a/src/fw.rs b/src/fw.rs
index e18a301..a3e6dec 100644
--- a/src/fw.rs
+++ b/src/fw.rs
@@ -8,92 +8,96 @@ use regex::Regex;
 use crate::messages;
 
 pub fn setup(ipt: &iptables::IPTables) -> Result<()> {
-  // ensure we start from a clean state without any rule already set
-  cleanup(ipt)?;
+    // ensure we start from a clean state without any rule already set
+    cleanup(ipt)?;
 
-  ipt
-    .new_chain("filter", "DIPLONAT")
-    .context("Failed to create new chain")?;
-  ipt
-    .insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
-    .context("Failed to insert jump rule")?;
+    info!("{}: creating DIPLONAT chain", ipt.cmd);
+    ipt.new_chain("filter", "DIPLONAT")
+        .context("Failed to create new chain")?;
+    ipt.insert_unique("filter", "INPUT", "-j DIPLONAT", 1)
+        .context("Failed to insert jump rule")?;
 
-  Ok(())
+    Ok(())
 }
 
 pub fn open_ports(ipt: &iptables::IPTables, ports: messages::PublicExposedPorts) -> Result<()> {
-  for p in ports.tcp_ports {
-    ipt
-      .append(
-        "filter",
-        "DIPLONAT",
-        &format!("-p tcp --dport {} -j ACCEPT", p),
-      )
-      .context("Failed to insert port rule")?;
-  }
-
-  for p in ports.udp_ports {
-    ipt
-      .append(
-        "filter",
-        "DIPLONAT",
-        &format!("-p udp --dport {} -j ACCEPT", p),
-      )
-      .context("Failed to insert port rule")?;
-  }
-
-  Ok(())
+    for p in ports.tcp_ports {
+        info!("{}: opening TCP port {}", ipt.cmd, p);
+        ipt.append(
+            "filter",
+            "DIPLONAT",
+            &format!("-p tcp --dport {} -j ACCEPT", p),
+        )
+        .context("Failed to insert port rule")?;
+    }
+
+    for p in ports.udp_ports {
+        info!("{}: opening UDP port {}", ipt.cmd, p);
+        ipt.append(
+            "filter",
+            "DIPLONAT",
+            &format!("-p udp --dport {} -j ACCEPT", p),
+        )
+        .context("Failed to insert port rule")?;
+    }
+
+    Ok(())
 }
 
 pub fn get_opened_ports(ipt: &iptables::IPTables) -> Result<messages::PublicExposedPorts> {
-  let mut ports = messages::PublicExposedPorts {
-    tcp_ports: HashSet::new(),
-    udp_ports: HashSet::new(),
-  };
-
-  let list = ipt.list("filter", "DIPLONAT")?;
-  let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
-    .context("Regex matching open ports encountered an unexpected rule")?;
-  for i in list {
-    let caps = re.captures(&i);
-    match caps {
-      Some(c) => {
-        if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) {
-          let proto = String::from(raw_proto.as_str());
-          let number = String::from(raw_port.as_str()).parse::<u16>()?;
-
-          if proto == "tcp" {
-            ports.tcp_ports.insert(number);
-          } else {
-            ports.udp_ports.insert(number);
-          }
-        } else {
-          error!("Unexpected rule found in DIPLONAT chain")
+    let mut ports = messages::PublicExposedPorts {
+        tcp_ports: HashSet::new(),
+        udp_ports: HashSet::new(),
+    };
+
+    let list = ipt.list("filter", "DIPLONAT")?;
+    let re = Regex::new(r"\-A.*? \-p (\w+).*\-\-dport (\d+).*?\-j ACCEPT")
+        .context("Regex matching open ports encountered an unexpected rule")?;
+    for i in list {
+        debug!("{} list DIPLONAT: got {}", ipt.cmd, i);
+        let caps = re.captures(&i);
+        match caps {
+            Some(c) => {
+                if let (Some(raw_proto), Some(raw_port)) = (c.get(1), c.get(2)) {
+                    let proto = String::from(raw_proto.as_str());
+                    let number = String::from(raw_port.as_str()).parse::<u16>()?;
+
+                    if proto == "tcp" || proto == "6" {
+                        ports.tcp_ports.insert(number);
+                    } else if proto == "udp" || proto == "17" {
+                        ports.udp_ports.insert(number);
+                    } else {
+                        error!("Unexpected protocol in iptables rule: {}", proto);
+                    }
+                } else {
+                    error!("Unexpected rule found in DIPLONAT chain")
+                }
+            }
+            _ => {
+                debug!("{} rule not parsed: {}", ipt.cmd, i);
+            }
         }
-      }
-      _ => {}
     }
-  }
 
-  Ok(ports)
+    debug!("{} ports already openned: {:?}", ipt.cmd, ports);
+
+    Ok(ports)
 }
 
 pub fn cleanup(ipt: &iptables::IPTables) -> Result<()> {
-  if ipt.chain_exists("filter", "DIPLONAT")? {
-    ipt
-      .flush_chain("filter", "DIPLONAT")
-      .context("Failed to flush the DIPLONAT chain")?;
-
-    if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
-      ipt
-        .delete("filter", "INPUT", "-j DIPLONAT")
-        .context("Failed to delete jump rule")?;
-    }
+    if ipt.chain_exists("filter", "DIPLONAT")? {
+        info!("{}: removing old DIPLONAT chain", ipt.cmd);
+        ipt.flush_chain("filter", "DIPLONAT")
+            .context("Failed to flush the DIPLONAT chain")?;
+
+        if ipt.exists("filter", "INPUT", "-j DIPLONAT")? {
+            ipt.delete("filter", "INPUT", "-j DIPLONAT")
+                .context("Failed to delete jump rule")?;
+        }
 
-    ipt
-      .delete_chain("filter", "DIPLONAT")
-      .context("Failed to delete chain")?;
-  }
+        ipt.delete_chain("filter", "DIPLONAT")
+            .context("Failed to delete chain")?;
+    }
 
-  Ok(())
+    Ok(())
 }
diff --git a/src/fw_actor.rs b/src/fw_actor.rs
index 518c1b8..02d8bcb 100644
--- a/src/fw_actor.rs
+++ b/src/fw_actor.rs
@@ -4,88 +4,100 @@ use anyhow::Result;
 use iptables;
 use log::*;
 use tokio::{
-  select,
-  sync::watch,
-  time::{self, Duration},
+    select,
+    sync::watch,
+    time::{self, Duration},
 };
 
 use crate::{fw, messages};
 
 pub struct FirewallActor {
-  pub ipt_v4: iptables::IPTables,
-  pub ipt_v6: iptables::IPTables,
-  rx_ports: watch::Receiver<messages::PublicExposedPorts>,
-  last_ports: messages::PublicExposedPorts,
-  refresh: Duration,
+    pub ipt_v4: Option<iptables::IPTables>,
+    pub ipt_v6: iptables::IPTables,
+    rx_ports: watch::Receiver<messages::PublicExposedPorts>,
+    last_ports: messages::PublicExposedPorts,
+    refresh: Duration,
 }
 
 impl FirewallActor {
-  pub async fn new(
-    refresh: Duration,
-    rxp: &watch::Receiver<messages::PublicExposedPorts>,
-  ) -> Result<Self> {
-    let ctx = Self {
-      ipt_v4: iptables::new(false)?,
-      ipt_v6: iptables::new(true)?,
-      rx_ports: rxp.clone(),
-      last_ports: messages::PublicExposedPorts::new(),
-      refresh,
-    };
+    pub async fn new(
+        ipv6_only: bool,
+        refresh: Duration,
+        rxp: &watch::Receiver<messages::PublicExposedPorts>,
+    ) -> Result<Self> {
+        let ctx = Self {
+            ipt_v4: match ipv6_only {
+                false => Some(iptables::new(false)?),
+                true => None,
+            },
+            ipt_v6: iptables::new(true)?,
+            rx_ports: rxp.clone(),
+            last_ports: messages::PublicExposedPorts::new(),
+            refresh,
+        };
 
-    fw::setup(&ctx.ipt_v4)?;
-    fw::setup(&ctx.ipt_v6)?;
+        if let Some(ipt_v4) = &ctx.ipt_v4 {
+            fw::setup(ipt_v4)?;
+        }
+        fw::setup(&ctx.ipt_v6)?;
 
-    return Ok(ctx);
-  }
+        return Ok(ctx);
+    }
 
-  pub async fn listen(&mut self) -> Result<()> {
-    let mut interval = time::interval(self.refresh);
-    loop {
-      // 1. Wait for an event
-      let new_ports = select! {
-        _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
-        _ = interval.tick() => None,
-        else => return Ok(()) // Sender dropped, terminate loop.
-      };
+    pub async fn listen(&mut self) -> Result<()> {
+        let mut interval = time::interval(self.refresh);
+        loop {
+            // 1. Wait for an event
+            let new_ports = select! {
+              _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
+              _ = interval.tick() => None,
+              else => return Ok(()) // Sender dropped, terminate loop.
+            };
 
-      // 2. Update last ports if needed
-      if let Some(p) = new_ports {
-        self.last_ports = p;
-      }
+            // 2. Update last ports if needed
+            if let Some(p) = new_ports {
+                self.last_ports = p;
+            }
 
-      // 3. Update firewall rules
-      match self.do_fw_update().await {
-        Ok(()) => debug!("Successfully updated firewall rules"),
-        Err(e) => error!("An error occured while updating firewall rules. {}", e),
-      }
+            // 3. Update firewall rules
+            match self.do_fw_update().await {
+                Ok(()) => debug!("Successfully updated firewall rules"),
+                Err(e) => error!("An error occured while updating firewall rules. {}", e),
+            }
+        }
     }
-  }
 
-  pub async fn do_fw_update(&self) -> Result<()> {
-    for ipt in [&self.ipt_v4, &self.ipt_v6] {
-      let curr_opened_ports = fw::get_opened_ports(ipt)?;
+    pub async fn do_fw_update(&self) -> Result<()> {
+        if let Some(ipt_v4) = &self.ipt_v4 {
+            self.do_fw_update_on(ipt_v4).await?;
+        }
+        self.do_fw_update_on(&self.ipt_v6).await?;
+        Ok(())
+    }
 
-      let diff_tcp = self
-        .last_ports
-        .tcp_ports
-        .difference(&curr_opened_ports.tcp_ports)
-        .copied()
-        .collect::<HashSet<u16>>();
-      let diff_udp = self
-        .last_ports
-        .udp_ports
-        .difference(&curr_opened_ports.udp_ports)
-        .copied()
-        .collect::<HashSet<u16>>();
+    pub async fn do_fw_update_on(&self, ipt: &iptables::IPTables) -> Result<()> {
+        let curr_opened_ports = fw::get_opened_ports(ipt)?;
 
-      let ports_to_open = messages::PublicExposedPorts {
-        tcp_ports: diff_tcp,
-        udp_ports: diff_udp,
-      };
+        let diff_tcp = self
+            .last_ports
+            .tcp_ports
+            .difference(&curr_opened_ports.tcp_ports)
+            .copied()
+            .collect::<HashSet<u16>>();
+        let diff_udp = self
+            .last_ports
+            .udp_ports
+            .difference(&curr_opened_ports.udp_ports)
+            .copied()
+            .collect::<HashSet<u16>>();
 
-      fw::open_ports(ipt, ports_to_open)?;
-    }
+        let ports_to_open = messages::PublicExposedPorts {
+            tcp_ports: diff_tcp,
+            udp_ports: diff_udp,
+        };
+
+        fw::open_ports(ipt, ports_to_open)?;
 
-    return Ok(());
-  }
+        return Ok(());
+    }
 }
diff --git a/src/igd_actor.rs b/src/igd_actor.rs
index d32f5dc..f0dd391 100644
--- a/src/igd_actor.rs
+++ b/src/igd_actor.rs
@@ -1,126 +1,122 @@
-use std::net::SocketAddrV4;
+use std::net::{Ipv4Addr, SocketAddrV4};
 
 use anyhow::{Context, Result};
 use igd::{aio::*, PortMappingProtocol};
 use log::*;
 use tokio::{
-  select,
-  sync::watch,
-  time::{self, Duration},
+    select,
+    sync::watch,
+    time::{self, Duration},
 };
 
 use crate::messages;
 
 pub struct IgdActor {
-  last_ports: messages::PublicExposedPorts,
-  rx_ports: watch::Receiver<messages::PublicExposedPorts>,
-  gateway: Gateway,
-  refresh: Duration,
-  expire: Duration,
-  private_ip: String,
+    last_ports: messages::PublicExposedPorts,
+    rx_ports: watch::Receiver<messages::PublicExposedPorts>,
+    gateway: Gateway,
+    refresh: Duration,
+    expire: Duration,
+    private_ip: Ipv4Addr,
 }
 
 impl IgdActor {
-  pub async fn new(
-    priv_ip: Option<&str>,
-    refresh: Duration,
-    expire: Duration,
-    rxp: &watch::Receiver<messages::PublicExposedPorts>,
-  ) -> Result<Self> {
-    let gw = search_gateway(Default::default())
-      .await
-      .context("Failed to find IGD gateway")?;
-    info!("IGD gateway: {}", gw);
+    pub async fn new(
+        priv_ip: Option<Ipv4Addr>,
+        refresh: Duration,
+        expire: Duration,
+        rxp: &watch::Receiver<messages::PublicExposedPorts>,
+    ) -> Result<Self> {
+        let gw = search_gateway(Default::default())
+            .await
+            .context("Failed to find IGD gateway")?;
+        info!("IGD gateway: {}", gw);
 
-    let private_ip = if let Some(ip) = priv_ip {
-      info!("Using private IP from config: {}", ip);
-      ip.to_string()
-    } else {
-      info!("Trying to automatically detect private IP");
-      let gwa = gw.addr.ip().octets();
-      let cmplen = match gwa {
-        [192, 168, _, _] => 3,
-        [10, _, _, _] => 2,
-        _ => panic!(
-          "Gateway IP does not appear to be in a local network ({})",
-          gw.addr.ip()
-        ),
-      };
-      let public_ip = get_if_addrs::get_if_addrs()?
-        .into_iter()
-        .map(|i| i.addr.ip())
-        .filter(|a| match a {
-          std::net::IpAddr::V4(a4) => (a4.octets()[..cmplen] == gwa[..cmplen]),
-          _ => false,
-        })
-        .next()
-        .expect("No interface has an IP on same subnet as gateway")
-        .to_string();
-      info!("Found private IP: {}", public_ip);
-      public_ip
-    };
+        let private_ip = if let Some(ip) = priv_ip {
+            info!("Using private IP from config: {}", ip);
+            ip
+        } else {
+            info!("Trying to automatically detect private IP");
+            let gwa = gw.addr.ip().octets();
+            let cmplen = match gwa {
+                [192, 168, _, _] => 3,
+                [10, _, _, _] => 2,
+                _ => panic!(
+                    "Gateway IP does not appear to be in a local network ({})",
+                    gw.addr.ip()
+                ),
+            };
+            #[allow(unused_parens)]
+            let private_ip = get_if_addrs::get_if_addrs()?
+                .into_iter()
+                .map(|i| i.addr.ip())
+                .filter_map(|a| match a {
+                    std::net::IpAddr::V4(a4) if a4.octets()[..cmplen] == gwa[..cmplen] => Some(a4),
+                    _ => None,
+                })
+                .next()
+                .expect("No interface has an IP on same subnet as gateway");
+            info!("Autodetected private IP: {}", private_ip);
+            private_ip
+        };
 
-    let ctx = Self {
-      gateway: gw,
-      rx_ports: rxp.clone(),
-      private_ip,
-      refresh: refresh,
-      expire: expire,
-      last_ports: messages::PublicExposedPorts::new(),
-    };
+        let ctx = Self {
+            gateway: gw,
+            rx_ports: rxp.clone(),
+            private_ip,
+            refresh: refresh,
+            expire: expire,
+            last_ports: messages::PublicExposedPorts::new(),
+        };
 
-    return Ok(ctx);
-  }
+        return Ok(ctx);
+    }
 
-  pub async fn listen(&mut self) -> Result<()> {
-    let mut interval = time::interval(self.refresh);
-    loop {
-      // 1. Wait for an event
-      let new_ports = select! {
-        _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
-        _ = interval.tick() => None,
-        else => return Ok(()) // Sender dropped, terminate loop.
-      };
+    pub async fn listen(&mut self) -> Result<()> {
+        let mut interval = time::interval(self.refresh);
+        loop {
+            // 1. Wait for an event
+            let new_ports = select! {
+              _ = self.rx_ports.changed() => Some(self.rx_ports.borrow().clone()),
+              _ = interval.tick() => None,
+              else => return Ok(()) // Sender dropped, terminate loop.
+            };
 
-      // 2. Update last ports if needed
-      if let Some(p) = new_ports {
-        self.last_ports = p;
-      }
+            // 2. Update last ports if needed
+            if let Some(p) = new_ports {
+                self.last_ports = p;
+            }
 
-      // 3. Flush IGD requests
-      match self.do_igd().await {
-        Ok(()) => debug!("Successfully updated IGD"),
-        Err(e) => error!("An error occured while updating IGD. {}", e),
-      }
+            // 3. Flush IGD requests
+            match self.do_igd().await {
+                Ok(()) => debug!("Successfully updated IGD"),
+                Err(e) => error!("An error occured while updating IGD. {}", e),
+            }
+        }
     }
-  }
 
-  pub async fn do_igd(&self) -> Result<()> {
-    let actions = [
-      (PortMappingProtocol::TCP, &self.last_ports.tcp_ports),
-      (PortMappingProtocol::UDP, &self.last_ports.udp_ports),
-    ];
+    pub async fn do_igd(&self) -> Result<()> {
+        let actions = [
+            (PortMappingProtocol::TCP, &self.last_ports.tcp_ports),
+            (PortMappingProtocol::UDP, &self.last_ports.udp_ports),
+        ];
 
-    for (proto, list) in actions.iter() {
-      for port in *list {
-        let service_str = format!("{}:{}", self.private_ip, port);
-        let service = service_str
-          .parse::<SocketAddrV4>()
-          .context("Invalid socket address")?;
-        self
-          .gateway
-          .add_port(
-            *proto,
-            *port,
-            service,
-            self.expire.as_secs() as u32,
-            "diplonat",
-          )
-          .await?;
-        debug!("IGD request successful for {:#?} {}", proto, service);
-      }
-    }
+        for (proto, list) in actions.iter() {
+            for port in *list {
+                let service = SocketAddrV4::new(self.private_ip, *port);
+                self.gateway
+                    .add_port(
+                        *proto,
+                        *port,
+                        service,
+                        self.expire.as_secs() as u32,
+                        "diplonat",
+                    )
+                    .await?;
+                debug!("IGD request successful for {:#?} {}", proto, service);
+            }
+        }
 
-    return Ok(());
-  }
+        return Ok(());
+    }
 }
diff --git a/src/main.rs b/src/main.rs
index 99d38f5..204520d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -6,15 +6,20 @@ mod fw;
 mod fw_actor;
 mod igd_actor;
 mod messages;
+mod stun_actor;
 
 use diplonat::Diplonat;
 use log::*;
 
 #[tokio::main]
 async fn main() {
-  pretty_env_logger::init();
-  info!("Starting Diplonat");
+    pretty_env_logger::init();
+    info!("Starting Diplonat");
 
-  let mut diplo = Diplonat::new().await.expect("Setup failed");
-  diplo.listen().await.expect("A runtime error occured");
+    Diplonat::new()
+        .await
+        .expect("Setup failed")
+        .listen()
+        .await
+        .expect("A runtime error occured");
 }
diff --git a/src/messages.rs b/src/messages.rs
index 63f16b0..e5322f1 100644
--- a/src/messages.rs
+++ b/src/messages.rs
@@ -2,15 +2,15 @@ use std::collections::HashSet;
 
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct PublicExposedPorts {
-  pub tcp_ports: HashSet<u16>,
-  pub udp_ports: HashSet<u16>,
+    pub tcp_ports: HashSet<u16>,
+    pub udp_ports: HashSet<u16>,
 }
 
 impl PublicExposedPorts {
-  pub fn new() -> Self {
-    return Self {
-      tcp_ports: HashSet::new(),
-      udp_ports: HashSet::new(),
-    };
-  }
+    pub fn new() -> Self {
+        return Self {
+            tcp_ports: HashSet::new(),
+            udp_ports: HashSet::new(),
+        };
+    }
 }
diff --git a/src/stun_actor.rs b/src/stun_actor.rs
new file mode 100644
index 0000000..6740c83
--- /dev/null
+++ b/src/stun_actor.rs
@@ -0,0 +1,147 @@
+use std::net::{IpAddr, Ipv4Addr, Ipv6Addr, SocketAddr};
+use std::time::{Duration, SystemTime};
+
+use anyhow::{anyhow, bail, Result};
+use log::*;
+use serde::{Deserialize, Serialize};
+
+use crate::config::{RuntimeConfigConsul, RuntimeConfigStun};
+use crate::consul;
+
+pub struct StunActor {
+    node: String,
+    consul: consul::Consul,
+    stun_server_v4: Option<SocketAddr>,
+    stun_server_v6: SocketAddr,
+    refresh_time: Duration,
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct AutodiscoverResult {
+    pub timestamp: u64,
+    pub address: Option<IpAddr>,
+}
+
+impl StunActor {
+    pub fn new(
+        consul_config: &RuntimeConfigConsul,
+        stun_config: &RuntimeConfigStun,
+        node: &str,
+    ) -> Self {
+        assert!(stun_config
+            .stun_server_v4
+            .map(|x| x.is_ipv4())
+            .unwrap_or(true));
+        assert!(stun_config.stun_server_v6.is_ipv6());
+
+        Self {
+            consul: consul::Consul::new(consul_config),
+            node: node.to_string(),
+            stun_server_v4: stun_config.stun_server_v4,
+            stun_server_v6: stun_config.stun_server_v6,
+            refresh_time: stun_config.refresh_time,
+        }
+    }
+
+    pub async fn listen(&mut self) -> Result<()> {
+        loop {
+            let ipv4_result = match self.stun_server_v4 {
+                Some(stun_server_v4) => self.autodiscover_ip(stun_server_v4).await,
+                None => self.autodiscover_none_ipv4().await,
+            };
+            if let Err(e) = ipv4_result {
+                error!("Unable to autodiscover IPv4 address: {}", e);
+            }
+            if let Err(e) = self.autodiscover_ip(self.stun_server_v6).await {
+                error!("Unable to autodiscover IPv6 address: {}", e);
+            }
+            tokio::time::sleep(self.refresh_time).await;
+        }
+    }
+
+    async fn autodiscover_ip(&self, stun_server: SocketAddr) -> Result<()> {
+        let binding_ip = match stun_server.is_ipv4() {
+            true => IpAddr::V4(Ipv4Addr::UNSPECIFIED),  // 0.0.0.0
+            false => IpAddr::V6(Ipv6Addr::UNSPECIFIED), // [::]
+        };
+        let binding_addr = SocketAddr::new(binding_ip, 0);
+
+        let discovered_addr = get_mapped_addr(stun_server, binding_addr)
+            .await?
+            .map(|x| x.ip());
+
+        let consul_key = match stun_server.is_ipv4() {
+            true => {
+                debug!("Autodiscovered IPv4: {:?}", discovered_addr);
+                format!("diplonat/autodiscovery/ipv4/{}", self.node)
+            }
+            false => {
+                debug!("Autodiscovered IPv6: {:?}", discovered_addr);
+                format!("diplonat/autodiscovery/ipv6/{}", self.node)
+            }
+        };
+
+        self.consul
+            .kv_put(
+                &consul_key,
+                serde_json::to_vec(&AutodiscoverResult {
+                    timestamp: timestamp(),
+                    address: discovered_addr,
+                })?,
+            )
+            .await?;
+
+        Ok(())
+    }
+
+    async fn autodiscover_none_ipv4(&self) -> Result<()> {
+        let consul_key = format!("diplonat/autodiscovery/ipv4/{}", self.node);
+
+        self.consul
+            .kv_put(
+                &consul_key,
+                serde_json::to_vec(&AutodiscoverResult {
+                    timestamp: timestamp(),
+                    address: None,
+                })?,
+            )
+            .await?;
+
+        Ok(())
+    }
+}
+
+async fn get_mapped_addr(
+    stun_server: SocketAddr,
+    binding_addr: SocketAddr,
+) -> Result<Option<SocketAddr>> {
+    use stun_client::*;
+
+    let mut client = Client::new(binding_addr, None).await?;
+    let res = match client.binding_request(stun_server, None).await {
+        Err(e) => {
+            info!(
+                "STUN binding request to {} failed, assuming no address (error: {})",
+                binding_addr, e
+            );
+            return Ok(None);
+        }
+        Ok(r) => r,
+    };
+
+    if res.get_class() != Class::SuccessResponse {
+        bail!("STUN server did not responde with a success response");
+    }
+
+    let xor_mapped_addr = Attribute::get_xor_mapped_address(&res)
+        .ok_or(anyhow!("no XorMappedAddress found in STUN response"))?;
+
+    Ok(Some(xor_mapped_addr))
+}
+
+fn timestamp() -> u64 {
+    SystemTime::now()
+        .duration_since(SystemTime::UNIX_EPOCH)
+        .expect("clock error")
+        .as_secs()
+}