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authorAlex Auvolat <alex@adnab.me>2021-12-14 13:55:11 +0100
committerAlex Auvolat <alex@adnab.me>2022-01-04 12:45:46 +0100
commit5b1117e582db16cc5aa50840a685875cbd5501f4 (patch)
tree06fec47bf56cb08cb51334454dc15f98352c98f2 /src/model/permission.rs
parent8f6026de5ecd44cbe0fc0bcd47638a1ece860439 (diff)
downloadgarage-5b1117e582db16cc5aa50840a685875cbd5501f4.tar.gz
garage-5b1117e582db16cc5aa50840a685875cbd5501f4.zip
New model for buckets
Diffstat (limited to 'src/model/permission.rs')
-rw-r--r--src/model/permission.rs37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/model/permission.rs b/src/model/permission.rs
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+++ b/src/model/permission.rs
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+use std::cmp::Ordering;
+
+use serde::{Deserialize, Serialize};
+
+use garage_util::crdt::*;
+
+/// Permission given to a key in a bucket
+#[derive(PartialOrd, Ord, PartialEq, Eq, Clone, Copy, Debug, Serialize, Deserialize)]
+pub struct BucketKeyPerm {
+ /// Timestamp at which the permission was given
+ pub timestamp: u64,
+
+ /// The key can be used to read the bucket
+ pub allow_read: bool,
+ /// The key can be used to write in the bucket
+ pub allow_write: bool,
+}
+
+impl Crdt for BucketKeyPerm {
+ fn merge(&mut self, other: &Self) {
+ match other.timestamp.cmp(&self.timestamp) {
+ Ordering::Greater => {
+ *self = *other;
+ }
+ Ordering::Equal if other != self => {
+ warn!("Different permission sets with same timestamp: {:?} and {:?}, merging to most restricted permission set.", self, other);
+ if !other.allow_read {
+ self.allow_read = false;
+ }
+ if !other.allow_write {
+ self.allow_write = false;
+ }
+ }
+ _ => (),
+ }
+ }
+}