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| author | Miklos Szeredi | 2016-10-01 07:32:32 +0200 |
|---|---|---|
| committer | Miklos Szeredi | 2016-10-01 07:32:32 +0200 |
| commit | 5e940c1dd3c1f7561924954eecee956ec277a79b (patch) | |
| tree | ab6e949c24c553e4e0b6d10782f4993c1cd436da /fs/fuse/inode.c | |
| parent | fuse: fix killing s[ug]id in setattr (diff) | |
| download | kernel-qcow2-linux-5e940c1dd3c1f7561924954eecee956ec277a79b.tar.gz kernel-qcow2-linux-5e940c1dd3c1f7561924954eecee956ec277a79b.tar.xz kernel-qcow2-linux-5e940c1dd3c1f7561924954eecee956ec277a79b.zip | |
fuse: handle killpriv in userspace fs
Only userspace filesystem can do the killing of suid/sgid without races.
So introduce an INIT flag and negotiate support for this.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/inode.c')
| -rw-r--r-- | fs/fuse/inode.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 1e535f31fed0..b965934939cb 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -910,6 +910,8 @@ static void process_init_reply(struct fuse_conn *fc, struct fuse_req *req) fc->writeback_cache = 1; if (arg->flags & FUSE_PARALLEL_DIROPS) fc->parallel_dirops = 1; + if (arg->flags & FUSE_HANDLE_KILLPRIV) + fc->handle_killpriv = 1; if (arg->time_gran && arg->time_gran <= 1000000000) fc->sb->s_time_gran = arg->time_gran; } else { @@ -941,7 +943,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req) FUSE_FLOCK_LOCKS | FUSE_HAS_IOCTL_DIR | FUSE_AUTO_INVAL_DATA | FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO | FUSE_WRITEBACK_CACHE | FUSE_NO_OPEN_SUPPORT | - FUSE_PARALLEL_DIROPS; + FUSE_PARALLEL_DIROPS | FUSE_HANDLE_KILLPRIV; req->in.h.opcode = FUSE_INIT; req->in.numargs = 1; req->in.args[0].size = sizeof(*arg); |