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mount: use sec= that was specified on the command line

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When older servers return RPC_AUTH_NULL, it means the
rpc creds will be ignored. In that case use the sec=
that was specified instead of setting sec=null

Fixes Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1112983
Signed-off-by: Steve Dickson <steved@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Steve Dickson 2016-05-25 10:36:50 -04:00 committed by Trond Myklebust
parent f7db0b2838
commit e68fd7c807
1 changed files with 11 additions and 3 deletions
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14
fs/nfs/super.c
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@ -1684,6 +1684,7 @@ static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
{
rpc_authflavor_t flavor = RPC_AUTH_MAXFLAVOR;
unsigned int i;
int use_auth_null = false;
/*
* If the sec= mount option is used, the specified flavor or AUTH_NULL
@ -1691,14 +1692,21 @@ static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
*
* AUTH_NULL has a special meaning when it's in the server list - it
* means that the server will ignore the rpc creds, so any flavor
* can be used.
* can be used but still use the sec= that was specified.
*/
for (i = 0; i < count; i++) {
flavor = server_authlist[i];
if (nfs_auth_info_match(&args->auth_info, flavor) ||
flavor == RPC_AUTH_NULL)
if (nfs_auth_info_match(&args->auth_info, flavor))
goto out;
if (flavor == RPC_AUTH_NULL)
use_auth_null = true;
}
if (use_auth_null) {
flavor = RPC_AUTH_NULL;
goto out;
}
dfprintk(MOUNT,