From 6a19275ada9137435da58990c8f8d3f58e170bf1 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Wed, 22 Jun 2005 17:16:23 +0000 Subject: [PATCH] RPC: [PATCH] improve rpcauthauth_create error returns Currently we return -ENOMEM for every single failure to create a new auth. This is actually accurate for auth_null and auth_unix, but for auth_gss it's a bit confusing. Allow rpcauth_create (and the ->create methods) to return errors. With this patch, the user may sometimes see an EINVAL instead. Whee. Signed-off-by: J. Bruce Fields Signed-off-by: Trond Myklebust --- net/sunrpc/auth.c | 6 +++--- net/sunrpc/auth_gss/auth_gss.c | 13 +++++++++---- net/sunrpc/clnt.c | 6 ++++-- 3 files changed, 16 insertions(+), 9 deletions(-) (limited to 'net/sunrpc') diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 9bcec9b..505e2d4 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -66,10 +66,10 @@ rpcauth_create(rpc_authflavor_t pseudoflavor, struct rpc_clnt *clnt) u32 flavor = pseudoflavor_to_flavor(pseudoflavor); if (flavor >= RPC_AUTH_MAXFLAVOR || !(ops = auth_flavors[flavor])) - return NULL; + return ERR_PTR(-EINVAL); auth = ops->create(clnt, pseudoflavor); - if (!auth) - return NULL; + if (IS_ERR(auth)) + return auth; if (clnt->cl_auth) rpcauth_destroy(clnt->cl_auth); clnt->cl_auth = auth; diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c index 7d88db8..2f7b867 100644 --- a/net/sunrpc/auth_gss/auth_gss.c +++ b/net/sunrpc/auth_gss/auth_gss.c @@ -660,14 +660,16 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor) { struct gss_auth *gss_auth; struct rpc_auth * auth; + int err = -ENOMEM; /* XXX? */ dprintk("RPC: creating GSS authenticator for client %p\n",clnt); if (!try_module_get(THIS_MODULE)) - return NULL; + return ERR_PTR(err); if (!(gss_auth = kmalloc(sizeof(*gss_auth), GFP_KERNEL))) goto out_dec; gss_auth->client = clnt; + err = -EINVAL; gss_auth->mech = gss_mech_get_by_pseudoflavor(flavor); if (!gss_auth->mech) { printk(KERN_WARNING "%s: Pseudoflavor %d not found!", @@ -686,15 +688,18 @@ gss_create(struct rpc_clnt *clnt, rpc_authflavor_t flavor) auth->au_flavor = flavor; atomic_set(&auth->au_count, 1); - if (rpcauth_init_credcache(auth, GSS_CRED_EXPIRE) < 0) + err = rpcauth_init_credcache(auth, GSS_CRED_EXPIRE); + if (err) goto err_put_mech; snprintf(gss_auth->path, sizeof(gss_auth->path), "%s/%s", clnt->cl_pathname, gss_auth->mech->gm_name); gss_auth->dentry = rpc_mkpipe(gss_auth->path, clnt, &gss_upcall_ops, RPC_PIPE_WAIT_FOR_OPEN); - if (IS_ERR(gss_auth->dentry)) + if (IS_ERR(gss_auth->dentry)) { + err = PTR_ERR(gss_auth->dentry); goto err_put_mech; + } return auth; err_put_mech: @@ -703,7 +708,7 @@ err_free: kfree(gss_auth); out_dec: module_put(THIS_MODULE); - return NULL; + return ERR_PTR(err); } static void diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index b36797a..9da1deb 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -103,6 +103,7 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname, { struct rpc_version *version; struct rpc_clnt *clnt = NULL; + struct rpc_auth *auth; int err; int len; @@ -157,10 +158,11 @@ rpc_new_client(struct rpc_xprt *xprt, char *servname, if (err < 0) goto out_no_path; - err = -ENOMEM; - if (!rpcauth_create(flavor, clnt)) { + auth = rpcauth_create(flavor, clnt); + if (IS_ERR(auth)) { printk(KERN_INFO "RPC: Couldn't create auth handle (flavor %u)\n", flavor); + err = PTR_ERR(auth); goto out_no_auth; } -- cgit v1.1