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authorSteve French <sfrench@us.ibm.com>2011-02-25 01:11:56 -0600
committerSteve French <sfrench@us.ibm.com>2011-04-12 00:42:06 +0000
commit8727c8a85f3951ef0eef36a665f5dceebb4c495d (patch)
treef35b215604127ebb05a977a1b8c093b7b441b6af /fs/cifs/connect.c
parentbdf1b03e093bdbc571f404e751c7b0e2dca412ea (diff)
Allow user names longer than 32 bytes
We artificially limited the user name to 32 bytes, but modern servers handle larger. Set the maximum length to a reasonable 256, and make the user name string dynamically allocated rather than a fixed size in session structure. Also clean up old checkpatch warning. Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/connect.c')
-rw-r--r--fs/cifs/connect.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 6e2b2addfc7..54436a3a334 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -881,7 +881,8 @@ cifs_parse_mount_options(char *options, const char *devname,
/* null user, ie anonymous, authentication */
vol->nullauth = 1;
}
- if (strnlen(value, 200) < 200) {
+ if (strnlen(value, MAX_USERNAME_SIZE) <
+ MAX_USERNAME_SIZE) {
vol->username = value;
} else {
printk(KERN_WARNING "CIFS: username too long\n");
@@ -1808,7 +1809,9 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
break;
default:
/* anything else takes username/password */
- if (strncmp(ses->userName, vol->username,
+ if (ses->user_name == NULL)
+ continue;
+ if (strncmp(ses->user_name, vol->username,
MAX_USERNAME_SIZE))
continue;
if (strlen(vol->username) != 0 &&
@@ -1906,9 +1909,11 @@ cifs_get_smb_ses(struct TCP_Server_Info *server, struct smb_vol *volume_info)
else
sprintf(ses->serverName, "%pI4", &addr->sin_addr);
- if (volume_info->username)
- strncpy(ses->userName, volume_info->username,
- MAX_USERNAME_SIZE);
+ if (volume_info->username) {
+ ses->user_name = kstrdup(volume_info->username, GFP_KERNEL);
+ if (!ses->user_name)
+ goto get_ses_fail;
+ }
/* volume_info->password freed at unmount */
if (volume_info->password) {