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>
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 6e2b2ad..54436a3 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -881,7 +881,8 @@
/* 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 @@
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 @@
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) {