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authorTrond Myklebust <trond.myklebust@hammerspace.com>2022-05-07 13:53:59 -0400
committerTrond Myklebust <trond.myklebust@hammerspace.com>2022-05-07 14:31:15 -0400
commitfd13359f54ee854f00134abc6be32da94ec53dbf (patch)
treed93e100fda8ebc7a6e551393abce6969aada9e23 /net
parent3d1b0d351441c2be7de082b92f43d0bfdc95a8f3 (diff)
SUNRPC: Ensure that the gssproxy client can start in a connected state
Ensure that the gssproxy client connects to the server from the gssproxy daemon process context so that the AF_LOCAL socket connection is done using the correct path and namespaces. Fixes: 1d658336b05f ("SUNRPC: Add RPC based upcall mechanism for RPCGSS auth") Cc: stable@vger.kernel.org Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/auth_gss/gss_rpc_upcall.c1
-rw-r--r--net/sunrpc/clnt.c33
2 files changed, 34 insertions, 0 deletions
diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index 61c276bddaf2..f549e4c05def 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -98,6 +98,7 @@ static int gssp_rpc_create(struct net *net, struct rpc_clnt **_clnt)
* done without the correct namespace:
*/
.flags = RPC_CLNT_CREATE_NOPING |
+ RPC_CLNT_CREATE_CONNECTED |
RPC_CLNT_CREATE_NO_IDLE_TIMEOUT
};
struct rpc_clnt *clnt;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 98133aa54f19..e2c6eca0271b 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -76,6 +76,7 @@ static int rpc_encode_header(struct rpc_task *task,
static int rpc_decode_header(struct rpc_task *task,
struct xdr_stream *xdr);
static int rpc_ping(struct rpc_clnt *clnt);
+static int rpc_ping_noreply(struct rpc_clnt *clnt);
static void rpc_check_timeout(struct rpc_task *task);
static void rpc_register_client(struct rpc_clnt *clnt)
@@ -483,6 +484,12 @@ static struct rpc_clnt *rpc_create_xprt(struct rpc_create_args *args,
rpc_shutdown_client(clnt);
return ERR_PTR(err);
}
+ } else if (args->flags & RPC_CLNT_CREATE_CONNECTED) {
+ int err = rpc_ping_noreply(clnt);
+ if (err != 0) {
+ rpc_shutdown_client(clnt);
+ return ERR_PTR(err);
+ }
}
clnt->cl_softrtry = 1;
@@ -2709,6 +2716,10 @@ static const struct rpc_procinfo rpcproc_null = {
.p_decode = rpcproc_decode_null,
};
+static const struct rpc_procinfo rpcproc_null_noreply = {
+ .p_encode = rpcproc_encode_null,
+};
+
static void
rpc_null_call_prepare(struct rpc_task *task, void *data)
{
@@ -2762,6 +2773,28 @@ static int rpc_ping(struct rpc_clnt *clnt)
return status;
}
+static int rpc_ping_noreply(struct rpc_clnt *clnt)
+{
+ struct rpc_message msg = {
+ .rpc_proc = &rpcproc_null_noreply,
+ };
+ struct rpc_task_setup task_setup_data = {
+ .rpc_client = clnt,
+ .rpc_message = &msg,
+ .callback_ops = &rpc_null_ops,
+ .flags = RPC_TASK_SOFT | RPC_TASK_SOFTCONN | RPC_TASK_NULLCREDS,
+ };
+ struct rpc_task *task;
+ int status;
+
+ task = rpc_run_task(&task_setup_data);
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+ status = task->tk_status;
+ rpc_put_task(task);
+ return status;
+}
+
struct rpc_cb_add_xprt_calldata {
struct rpc_xprt_switch *xps;
struct rpc_xprt *xprt;