[XFRM]: Fix IPv4 tunnel mode decapsulation with IPV6=n

[powerpc.git] / net / sunrpc / auth.c

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index 9ac1b8c..76f7eac 100644 (file)
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -64,14 +64,26 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt)
        struct rpc_authops      *ops;
        u32                     flavor = pseudoflavor_to_flavor(pseudoflavor);
 
-       if (flavor >= RPC_AUTH_MAXFLAVOR || !(ops = auth_flavors[flavor]))
-               return ERR_PTR(-EINVAL);
+       auth = ERR_PTR(-EINVAL);
+       if (flavor >= RPC_AUTH_MAXFLAVOR)
+               goto out;
+
+       /* FIXME - auth_flavors[] really needs an rw lock,
+        * and module refcounting. */
+#ifdef CONFIG_KMOD
+       if ((ops = auth_flavors[flavor]) == NULL)
+               request_module("rpc-auth-%u", flavor);
+#endif
+       if ((ops = auth_flavors[flavor]) == NULL)
+               goto out;
        auth = ops->create(clnt, pseudoflavor);
        if (IS_ERR(auth))
                return auth;
        if (clnt->cl_auth)
                rpcauth_destroy(clnt->cl_auth);
        clnt->cl_auth = auth;
+
+out:
        return auth;
 }
 
@@ -184,7 +196,7 @@ rpcauth_gc_credcache(struct rpc_auth *auth, struct hlist_head *free)
  */
 struct rpc_cred *
 rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
-               int taskflags)
+               int flags)
 {
        struct rpc_cred_cache *cache = auth->au_credcache;
        HLIST_HEAD(free);
@@ -193,7 +205,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
                        *cred = NULL;
        int             nr = 0;
 
-       if (!(taskflags & RPC_TASK_ROOTCREDS))
+       if (!(flags & RPCAUTH_LOOKUP_ROOTCREDS))
                nr = acred->uid & RPC_CREDCACHE_MASK;
 retry:
        spin_lock(&rpc_credcache_lock);
@@ -201,8 +213,8 @@ retry:
                rpcauth_gc_credcache(auth, &free);
        hlist_for_each_safe(pos, next, &cache->hashtable[nr]) {
                struct rpc_cred *entry;
-               entry = hlist_entry(pos, struct rpc_cred, cr_hash);
-               if (entry->cr_ops->crmatch(acred, entry, taskflags)) {
+               entry = hlist_entry(pos, struct rpc_cred, cr_hash);
+               if (entry->cr_ops->crmatch(acred, entry, flags)) {
                        hlist_del(&entry->cr_hash);
                        cred = entry;
                        break;
@@ -224,7 +236,7 @@ retry:
        rpcauth_destroy_credlist(&free);
 
        if (!cred) {
-               new = auth->au_ops->crcreate(auth, acred, taskflags);
+               new = auth->au_ops->crcreate(auth, acred, flags);
                if (!IS_ERR(new)) {
 #ifdef RPC_DEBUG
                        new->cr_magic = RPCAUTH_CRED_MAGIC;
@@ -232,13 +244,21 @@ retry:
                        goto retry;
                } else
                        cred = new;
+       } else if ((cred->cr_flags & RPCAUTH_CRED_NEW)
+                       && cred->cr_ops->cr_init != NULL
+                       && !(flags & RPCAUTH_LOOKUP_NEW)) {
+               int res = cred->cr_ops->cr_init(auth, cred);
+               if (res < 0) {
+                       put_rpccred(cred);
+                       cred = ERR_PTR(res);
+               }
        }
 
        return (struct rpc_cred *) cred;
 }
 
 struct rpc_cred *
-rpcauth_lookupcred(struct rpc_auth *auth, int taskflags)
+rpcauth_lookupcred(struct rpc_auth *auth, int flags)
 {
        struct auth_cred acred = {
                .uid = current->fsuid,
@@ -250,7 +270,7 @@ rpcauth_lookupcred(struct rpc_auth *auth, int taskflags)
        dprintk("RPC:     looking up %s cred\n",
                auth->au_ops->au_name);
        get_group_info(acred.group_info);
-       ret = auth->au_ops->lookup_cred(auth, &acred, taskflags);
+       ret = auth->au_ops->lookup_cred(auth, &acred, flags);
        put_group_info(acred.group_info);
        return ret;
 }
@@ -265,11 +285,14 @@ rpcauth_bindcred(struct rpc_task *task)
                .group_info = current->group_info,
        };
        struct rpc_cred *ret;
+       int flags = 0;
 
        dprintk("RPC: %4d looking up %s cred\n",
                task->tk_pid, task->tk_auth->au_ops->au_name);
        get_group_info(acred.group_info);
-       ret = auth->au_ops->lookup_cred(auth, &acred, task->tk_flags);
+       if (task->tk_flags & RPC_TASK_ROOTCREDS)
+               flags |= RPCAUTH_LOOKUP_ROOTCREDS;
+       ret = auth->au_ops->lookup_cred(auth, &acred, flags);
        if (!IS_ERR(ret))
                task->tk_msg.rpc_cred = ret;
        else
@@ -308,8 +331,8 @@ rpcauth_unbindcred(struct rpc_task *task)
        task->tk_msg.rpc_cred = NULL;
 }
 
-u32 *
-rpcauth_marshcred(struct rpc_task *task, u32 *p)
+__be32 *
+rpcauth_marshcred(struct rpc_task *task, __be32 *p)
 {
        struct rpc_cred *cred = task->tk_msg.rpc_cred;
 
@@ -319,8 +342,8 @@ rpcauth_marshcred(struct rpc_task *task, u32 *p)
        return cred->cr_ops->crmarshal(task, p);
 }
 
-u32 *
-rpcauth_checkverf(struct rpc_task *task, u32 *p)
+__be32 *
+rpcauth_checkverf(struct rpc_task *task, __be32 *p)
 {
        struct rpc_cred *cred = task->tk_msg.rpc_cred;
 
@@ -332,7 +355,7 @@ rpcauth_checkverf(struct rpc_task *task, u32 *p)
 
 int
 rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
-               u32 *data, void *obj)
+               __be32 *data, void *obj)
 {
        struct rpc_cred *cred = task->tk_msg.rpc_cred;
 
@@ -346,7 +369,7 @@ rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
 
 int
 rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
-               u32 *data, void *obj)
+               __be32 *data, void *obj)
 {
        struct rpc_cred *cred = task->tk_msg.rpc_cred;