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| author | Paulo Alcantara <pc@manguebit.com> | 2024-01-29 03:52:03 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-25 17:22:48 +0300 |
| commit | 97db416045554ab33533536b04398037d49e532e (patch) | |
| tree | 3fe2bb69610bb3fe451a71452f70de993a774b0c /fs/smb/client/reparse.h | |
| parent | 7449d736bbbd160c76b01b8fcdf72f58a8757d4b (diff) | |
| download | linux-97db416045554ab33533536b04398037d49e532e.tar.xz | |
smb: client: parse uid, gid, mode and dev from WSL reparse points
[ Upstream commit 78e26bec4d6d3aef04276e28bed48a45fd00e116 ]
Parse the extended attributes from WSL reparse points to correctly
report uid, gid mode and dev from ther instantiated inodes.
Signed-off-by: Paulo Alcantara <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/smb/client/reparse.h')
| -rw-r--r-- | fs/smb/client/reparse.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/fs/smb/client/reparse.h b/fs/smb/client/reparse.h index 9816bac98552..6b55d1df9e2f 100644 --- a/fs/smb/client/reparse.h +++ b/fs/smb/client/reparse.h @@ -8,6 +8,8 @@ #include <linux/fs.h> #include <linux/stat.h> +#include <linux/uidgid.h> +#include "fs_context.h" #include "cifsglob.h" static inline dev_t reparse_nfs_mkdev(struct reparse_posix_data *buf) @@ -17,6 +19,33 @@ static inline dev_t reparse_nfs_mkdev(struct reparse_posix_data *buf) return MKDEV(v >> 32, v & 0xffffffff); } +static inline dev_t wsl_mkdev(void *ptr) +{ + u64 v = le64_to_cpu(*(__le64 *)ptr); + + return MKDEV(v & 0xffffffff, v >> 32); +} + +static inline kuid_t wsl_make_kuid(struct cifs_sb_info *cifs_sb, + void *ptr) +{ + u32 uid = le32_to_cpu(*(__le32 *)ptr); + + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_UID) + return cifs_sb->ctx->linux_uid; + return make_kuid(current_user_ns(), uid); +} + +static inline kgid_t wsl_make_kgid(struct cifs_sb_info *cifs_sb, + void *ptr) +{ + u32 gid = le32_to_cpu(*(__le32 *)ptr); + + if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID) + return cifs_sb->ctx->linux_gid; + return make_kgid(current_user_ns(), gid); +} + static inline u64 reparse_mode_nfs_type(mode_t mode) { switch (mode & S_IFMT) { |