diff options
| author | Philipp Kerling <pkerling@casix.org> | 2025-06-08 20:59:00 +0200 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2025-06-09 15:59:03 -0500 |
| commit | 93310053663ba647e402ef67e4bb18ec06ff8dc4 (patch) | |
| tree | 55f5afd213912186f8b9dac940fc94a86cc11309 /fs/smb/client/connect.c | |
| parent | 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff) | |
smb: client: disable path remapping with POSIX extensions
If SMB 3.1.1 POSIX Extensions are available and negotiated, the client
should be able to use all characters and not remap anything. Currently, the
user has to explicitly request this behavior by specifying the "nomapposix"
mount option.
Link: https://lore.kernel.org/4195bb677b33d680e77549890a4f4dd3b474ceaf.camel@rx2.rx-server.de
Signed-off-by: Philipp Kerling <pkerling@casix.org>
Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/connect.c')
| -rw-r--r-- | fs/smb/client/connect.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index 28bc33496623..c4fb80b37738 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -3718,9 +3718,15 @@ int cifs_mount_get_tcon(struct cifs_mount_ctx *mnt_ctx) goto out; } - /* if new SMB3.11 POSIX extensions are supported do not remap / and \ */ - if (tcon->posix_extensions) + /* + * if new SMB3.11 POSIX extensions are supported, do not change anything in the + * path (i.e., do not remap / and \ and do not map any special characters) + */ + if (tcon->posix_extensions) { cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_POSIX_PATHS; + cifs_sb->mnt_cifs_flags &= ~(CIFS_MOUNT_MAP_SFM_CHR | + CIFS_MOUNT_MAP_SPECIAL_CHR); + } #ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY /* tell server which Unix caps we support */ |