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authorJeff Layton <jlayton@redhat.com>2007-05-05 07:27:49 +0400
committerSteve French <sfrench@us.ibm.com>2007-05-05 07:27:49 +0400
commit8426c39c1289765a11fc9b9523212ed368ceebd8 (patch)
treefc7cab82fafe76d11c77549ff16759ab86c88682 /fs/cifs/README
parent796e5661f6b6be1600b3ab47c61ce61cf3e7a353 (diff)
downloadlinux-8426c39c1289765a11fc9b9523212ed368ceebd8.tar.xz
[CIFS] Make sec=none force an anonymous mount
We had a customer report that attempting to make CIFS mount with a null username (i.e. doing an anonymous mount) doesn't work. Looking through the code, it looks like CIFS expects a NULL username from userspace in order to trigger an anonymous mount. The mount.cifs code doesn't seem to ever pass a null username to the kernel, however. It looks also like the kernel can take a sec=none option, but it only seems to look at it if the username is already NULL. This seems redundant and effectively makes sec=none useless. The following patch makes sec=none force an anonymous mount. Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/README')
-rw-r--r--fs/cifs/README20
1 files changed, 17 insertions, 3 deletions
diff --git a/fs/cifs/README b/fs/cifs/README
index 93fe3594274f..80fcfb82eafd 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -472,7 +472,7 @@ including:
-V print mount.cifs version
-? display simple usage information
-With recent 2.6 kernel versions of modutils, the version of the cifs kernel
+With most 2.6 kernel versions of modutils, the version of the cifs kernel
module can be displayed via modinfo.
Misc /proc/fs/cifs Flags and Debug Info
@@ -521,8 +521,22 @@ SecurityFlags Flags which control security negotiation and
must use plaintext passwords 0x20020
(reserved for future packet encryption) 0x00040
-cifsFYI If set to one, additional debug information is
- logged to the system error log. (default 0)
+cifsFYI If set to non-zero value, additional debug information
+ will be logged to the system error log. This field
+ contains three flags controlling different classes of
+ debugging entries. The maximum value it can be set
+ to is 7 which enables all debugging points (default 0).
+ Some debugging statements are not compiled into the
+ cifs kernel unless CONFIG_CIFS_DEBUG2 is enabled in the
+ kernel configuration. cifsFYI may be set to one or
+ nore of the following flags (7 sets them all):
+
+ log cifs informational messages 0x01
+ log return codes from cifs entry points 0x02
+ log slow responses (ie which take longer than one second)
+ CONFIG_CIFS_STATS2 must be enabled in .config 0x03
+
+
traceSMB If set to one, debug information is logged to the
system error log with the start of smb requests
and responses (default 0)