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authorSteve French <stfrench@microsoft.com>2022-02-07 03:59:57 +0300
committerSteve French <stfrench@microsoft.com>2022-02-07 03:59:57 +0300
commitd0cbe56a7d5ac170f6cf3757ef5a14dd854e7da9 (patch)
treef49dba3d86fd748944cade6ee5b2e0b37a9c6613 /fs/cifs
parentdfd42facf1e4ada021b939b4e19c935dcdd55566 (diff)
downloadlinux-d0cbe56a7d5ac170f6cf3757ef5a14dd854e7da9.tar.xz
[smb3] improve error message when mount options conflict with posix
POSIX extensions require SMB3.1.1 (so improve the error message when vers=3.0, 2.1 or 2.0 is specified on mount) Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/connect.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0b742bd50642..cff6c01feae2 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2340,10 +2340,19 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx)
if (ses->server->posix_ext_supported) {
tcon->posix_extensions = true;
pr_warn_once("SMB3.11 POSIX Extensions are experimental\n");
- } else {
+ } else if ((ses->server->vals->protocol_id == SMB311_PROT_ID) ||
+ (strcmp(ses->server->vals->version_string,
+ SMB3ANY_VERSION_STRING) == 0) ||
+ (strcmp(ses->server->vals->version_string,
+ SMBDEFAULT_VERSION_STRING) == 0)) {
cifs_dbg(VFS, "Server does not support mounting with posix SMB3.11 extensions\n");
rc = -EOPNOTSUPP;
goto out_fail;
+ } else {
+ cifs_dbg(VFS, "Check vers= mount option. SMB3.11 "
+ "disabled but required for POSIX extensions\n");
+ rc = -EOPNOTSUPP;
+ goto out_fail;
}
}