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| author | Chuck Lever <cel@netapp.com> | 2006-01-03 09:55:51 +0100 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-01-06 14:58:56 -0500 |
| commit | 922004120b10dcb0ce04b55014168e8a7a8c1a0e (patch) | |
| tree | 4209bbd1043d9ddf09f2f277a65af758aa3631da /net/sunrpc | |
| parent | 35f5a422ce1af836007f811b613c440d0e348e06 (diff) | |
| download | op-kernel-dev-922004120b10dcb0ce04b55014168e8a7a8c1a0e.zip op-kernel-dev-922004120b10dcb0ce04b55014168e8a7a8c1a0e.tar.gz | |
SUNRPC: transport switch API for setting port number
At some point, transport endpoint addresses will no longer be IPv4. To hide
the structure of the rpc_xprt's address field from ULPs and port mappers,
add an API for setting the port number during an RPC bind operation.
Test-plan:
Destructive testing (unplugging the network temporarily). Connectathon
with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked.
Probably need to rig a server where certain services aren't running, or
that returns an error for some typical operation.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/pmap_clnt.c | 8 | ||||
| -rw-r--r-- | net/sunrpc/xprtsock.c | 14 |
2 files changed, 19 insertions, 3 deletions
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c index cad4568..0935adb 100644 --- a/net/sunrpc/pmap_clnt.c +++ b/net/sunrpc/pmap_clnt.c @@ -131,10 +131,13 @@ static void pmap_getport_done(struct rpc_task *task) { struct rpc_clnt *clnt = task->tk_client; + struct rpc_xprt *xprt = task->tk_xprt; struct rpc_portmap *map = clnt->cl_pmap; dprintk("RPC: %4d pmap_getport_done(status %d, port %d)\n", task->tk_pid, task->tk_status, clnt->cl_port); + + xprt->ops->set_port(xprt, 0); if (task->tk_status < 0) { /* Make the calling task exit with an error */ task->tk_action = rpc_exit_task; @@ -142,9 +145,8 @@ pmap_getport_done(struct rpc_task *task) /* Program not registered */ rpc_exit(task, -EACCES); } else { - /* byte-swap port number first */ + xprt->ops->set_port(xprt, clnt->cl_port); clnt->cl_port = htons(clnt->cl_port); - clnt->cl_xprt->addr.sin_port = clnt->cl_port; } spin_lock(&pmap_lock); map->pm_binding = 0; @@ -205,7 +207,7 @@ pmap_create(char *hostname, struct sockaddr_in *srvaddr, int proto, int privileg xprt = xprt_create_proto(proto, srvaddr, NULL); if (IS_ERR(xprt)) return (struct rpc_clnt *)xprt; - xprt->addr.sin_port = htons(RPC_PMAP_PORT); + xprt->ops->set_port(xprt, RPC_PMAP_PORT); if (!privileged) xprt->resvport = 0; diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 51f07c9..3e88930 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -921,6 +921,18 @@ static void xs_udp_timer(struct rpc_task *task) xprt_adjust_cwnd(task, -ETIMEDOUT); } +/** + * xs_set_port - reset the port number in the remote endpoint address + * @xprt: generic transport + * @port: new port number + * + */ +static void xs_set_port(struct rpc_xprt *xprt, unsigned short port) +{ + dprintk("RPC: setting port for xprt %p to %u\n", xprt, port); + xprt->addr.sin_port = htons(port); +} + static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock) { struct sockaddr_in myaddr = { @@ -1161,6 +1173,7 @@ static struct rpc_xprt_ops xs_udp_ops = { .set_buffer_size = xs_udp_set_buffer_size, .reserve_xprt = xprt_reserve_xprt_cong, .release_xprt = xprt_release_xprt_cong, + .set_port = xs_set_port, .connect = xs_connect, .buf_alloc = rpc_malloc, .buf_free = rpc_free, @@ -1175,6 +1188,7 @@ static struct rpc_xprt_ops xs_udp_ops = { static struct rpc_xprt_ops xs_tcp_ops = { .reserve_xprt = xprt_reserve_xprt, .release_xprt = xprt_release_xprt, + .set_port = xs_set_port, .connect = xs_connect, .buf_alloc = rpc_malloc, .buf_free = rpc_free, |
