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NFS: Attempt mount with default sec flavor first

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nfs4_lookup_root() is already configured to use either RPC_AUTH_UNIX
or a user specified flavor (through -o sec=<whatever>).  We should
use this flavor first, and only attempt negotiation if it fails
with -EPERM.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker 2011-04-13 14:31:30 -04:00 committed by Trond Myklebust
parent 0fabee243a
commit 801a16dc7b
1 changed files with 16 additions and 8 deletions
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24
fs/nfs/nfs4proc.c
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@ -2208,19 +2208,15 @@ static int nfs4_lookup_root_sec(struct nfs_server *server, struct nfs_fh *fhandl
return ret;
}
/*
* get the file handle for the "/" directory on the server
*/
static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int i, len, status = 0;
rpc_authflavor_t flav_array[NFS_MAX_SECFLAVORS];
flav_array[0] = RPC_AUTH_UNIX;
len = gss_mech_list_pseudoflavors(&flav_array[1]);
flav_array[1+len] = RPC_AUTH_NULL;
len += 2;
len = gss_mech_list_pseudoflavors(&flav_array[0]);
flav_array[len] = RPC_AUTH_NULL;
len += 1;
for (i = 0; i < len; i++) {
status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]);
@ -2228,6 +2224,18 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
continue;
break;
}
return status;
}
/*
* get the file handle for the "/" directory on the server
*/
static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fsinfo *info)
{
int status = nfs4_lookup_root(server, fhandle, info);
if (status == -EPERM)
status = nfs4_find_root_sec(server, fhandle, info);
if (status == 0)
status = nfs4_server_capabilities(server, fhandle);
if (status == 0)