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#include "FSNode.proto.h"
#include <VFS/VFS.ns.h>
#include <SyscallManager/Res.ns.h>
#include <UserManager/Usr.ns.h>
#include <TaskManager/Task.ns.h>
call_t FSNode::m_callTable[] = {
CALL0(FNIF_GETNAME, &FSNode::getNameSC),
CALL0(FNIF_TYPE, &FSNode::typeSC),
CALL0(FNIF_GETPARENT, &FSNode::getParentSC),
CALL0(FNIF_GETLENGTH, &FSNode::getLengthSC),
CALL0(FNIF_GETUID, &FSNode::getUid),
CALL0(FNIF_GETGID, &FSNode::getGid),
CALL0(FNIF_GETPERM, &FSNode::getPermissions),
CALL0(FNIF_GETPATH, &FSNode::getPathSC),
CALL0(FNIF_SETCWD, &FSNode::setCwdSC),
CALL0(FNIF_REMOVE, &FSNode::removeSC),
CALL0(0, 0)
};
u32int FSNode::scall(u8int wat, u32int a, u32int b, u32int c, u32int d) {
if (wat == FNIF_SGETRFN) return VFS::getRootNode()->resId();
if (wat == FNIF_SGETCWD) return Task::currProcess()->getCwd()->resId();
if (wat == FNIF_SFIND) {
String* path = (String*)a;
FSNode* n;
if (b == 0) {
n = VFS::find(*path);
} else {
n = VFS::find(*path, Res::get<DirectoryNode>(b, FNIF_OBJTYPE));
}
if (n != 0) return n->resId();
}
if (wat == FNIF_SMKDIR) {
String* path = (String*)a;
FSNode* n;
if (b == 0) {
n = VFS::createDirectory(*path, 0, true);
} else {
n = VFS::createDirectory(*path, Res::get<DirectoryNode>(b, FNIF_OBJTYPE), true);
}
if (n != 0) return n->resId();
}
return (u32int) - 1;
}
u32int FSNode::getNameSC() {
return getName().serialize();
}
u32int FSNode::typeSC() {
return type();
}
u32int FSNode::getLengthSC() {
u64int* a = (u64int*)Mem::mkXchgSpace(sizeof(u64int));
*a = getLength();
return (u32int)a;
}
u32int FSNode::getParentSC() {
if (m_parent != 0) return m_parent->resId();
return (u32int) - 1;
}
u32int FSNode::getPathSC() {
return VFS::path(this).serialize();
}
u32int FSNode::setCwdSC() {
if (type() == NT_DIRECTORY) {
Task::currProcess()->setCwd((DirectoryNode*)this);
}
return 0;
}
u32int FSNode::removeSC() {
if (!writable()) return 0;
return (VFS::remove(this) ? 1 : 0);
}
bool FSNode::readable(User* user) {
if (ISROOT) return true;
if (user == 0) user = Usr::user();
if (user->getUid() == m_uid)
return ((m_permissions >> 6) & 4) != 0;
if (user->isInGroup(m_gid))
return ((m_permissions >> 3) & 4) != 0;
return (m_permissions & 4) != 0;
}
bool FSNode::writable(User* user) {
if (!m_fs->isWritable()) return false;
if (ISROOT) return true;
if (user == 0) user = Usr::user();
if (user->getUid() == m_uid)
return ((m_permissions >> 6) & 2) != 0;
if (user->isInGroup(m_gid))
return ((m_permissions >> 3) & 2) != 0;
return (m_permissions & 2) != 0;
}
bool FSNode::runnable(User* user) {
if (ISROOT) return true;
if (user == 0) user = Usr::user();
if (user->getUid() == m_uid)
return ((m_permissions >> 6) & 1) != 0;
if (user->isInGroup(m_gid))
return ((m_permissions >> 3) & 1) != 0;
return (m_permissions & 1) != 0;
}
bool FSNode::accessible() {
return readable();
}
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