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authorSteve French <sfrench@us.ibm.com>2007-10-04 20:05:09 +0000
committerSteve French <sfrench@us.ibm.com>2007-10-04 20:05:09 +0000
commita013689ddb2a4ba5f0452c053c0bf00bafb686f1 (patch)
treedaffe3644ed321b602a1f6a4e97dc6c6ef329dfb /fs/cifs/cifs_debug.c
parentd12fd121afd4f87cbc7675f8f6b651d649534f15 (diff)
[CIFS] Fix cifsd so shuts down when signing fails during mount
Fixes two problems: 1) we dropped down to negotiating lanman if we did not recognize the mechanism (krb5 e.g.) 2) we did not stop cifsd (thus will fail when doing rmod cifs with slab free errors) when we fail tcon but have a bad session (which is the case in which signing is required but we don't allow signing on the client) It also turns on extended security flag in the header when passing "sec=krb5" on mount command (although kerberos support is not done of course) Acked-by: Jeff Layton <jlayton@redhat.com> CC: Shaggy <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifs_debug.c')
-rw-r--r--fs/cifs/cifs_debug.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 56c5d9126f5..73c4c419663 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -879,11 +879,16 @@ security_flags_write(struct file *file, const char __user *buffer,
if (count < 3) {
/* single char or single char followed by null */
c = flags_string[0];
- if (c == '0' || c == 'n' || c == 'N')
+ if (c == '0' || c == 'n' || c == 'N') {
extended_security = CIFSSEC_DEF; /* default */
- else if (c == '1' || c == 'y' || c == 'Y')
+ return count;
+ } else if (c == '1' || c == 'y' || c == 'Y') {
extended_security = CIFSSEC_MAX;
- return count;
+ return count;
+ } else if (!isdigit(c)) {
+ cERROR(1, ("invalid flag %c", c));
+ return -EINVAL;
+ }
}
/* else we have a number */