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path: root/fs/nfs/super.c
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Diffstat (limited to 'fs/nfs/super.c')
-rw-r--r--fs/nfs/super.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 71fdc0dfa0d2..f2071d221c77 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2084,6 +2084,8 @@ static int nfs_validate_text_mount_data(void *options,
max_namelen = NFS4_MAXNAMLEN;
max_pathlen = NFS4_MAXPATHLEN;
nfs_validate_transport_protocol(args);
+ if (args->nfs_server.protocol == XPRT_TRANSPORT_UDP)
+ goto out_invalid_transport_udp;
nfs4_validate_mount_flags(args);
#else
goto out_v4_not_compiled;
@@ -2106,6 +2108,10 @@ static int nfs_validate_text_mount_data(void *options,
out_v4_not_compiled:
dfprintk(MOUNT, "NFS: NFSv4 is not compiled into kernel\n");
return -EPROTONOSUPPORT;
+#else
+out_invalid_transport_udp:
+ dfprintk(MOUNT, "NFSv4: Unsupported transport protocol udp\n");
+ return -EINVAL;
#endif /* !CONFIG_NFS_V4 */
out_no_address:
@@ -2711,6 +2717,8 @@ static int nfs4_validate_mount_data(void *options,
args->acdirmax = data->acdirmax;
args->nfs_server.protocol = data->proto;
nfs_validate_transport_protocol(args);
+ if (args->nfs_server.protocol == XPRT_TRANSPORT_UDP)
+ goto out_invalid_transport_udp;
break;
default:
@@ -2731,6 +2739,10 @@ out_inval_auth:
out_no_address:
dfprintk(MOUNT, "NFS4: mount program didn't pass remote address\n");
return -EINVAL;
+
+out_invalid_transport_udp:
+ dfprintk(MOUNT, "NFSv4: Unsupported transport protocol udp\n");
+ return -EINVAL;
}
/*