diff options
Diffstat (limited to 'net/sunrpc/rpcb_clnt.c')
-rw-r--r-- | net/sunrpc/rpcb_clnt.c | 146 |
1 files changed, 32 insertions, 114 deletions
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index 4a020b688860..5a8e6d46809a 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -31,11 +31,9 @@ #include <linux/sunrpc/sched.h> #include <linux/sunrpc/xprtsock.h> -#include "netns.h" +#include <trace/events/sunrpc.h> -#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) -# define RPCDBG_FACILITY RPCDBG_BIND -#endif +#include "netns.h" #define RPCBIND_SOCK_PATHNAME "/var/run/rpcbind.sock" @@ -216,10 +214,6 @@ static void rpcb_set_local(struct net *net, struct rpc_clnt *clnt, sn->rpcb_is_af_local = is_af_local ? 1 : 0; smp_wmb(); sn->rpcb_users = 1; - dprintk("RPC: created new rpcb local clients (rpcb_local_clnt: " - "%p, rpcb_local_clnt4: %p) for net %x%s\n", - sn->rpcb_local_clnt, sn->rpcb_local_clnt4, - net->ns.inum, (net == &init_net) ? " (init_net)" : ""); } /* @@ -261,19 +255,13 @@ static int rpcb_create_local_unix(struct net *net) */ clnt = rpc_create(&args); if (IS_ERR(clnt)) { - dprintk("RPC: failed to create AF_LOCAL rpcbind " - "client (errno %ld).\n", PTR_ERR(clnt)); result = PTR_ERR(clnt); goto out; } clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4); - if (IS_ERR(clnt4)) { - dprintk("RPC: failed to bind second program to " - "rpcbind v4 client (errno %ld).\n", - PTR_ERR(clnt4)); + if (IS_ERR(clnt4)) clnt4 = NULL; - } rpcb_set_local(net, clnt, clnt4, true); @@ -309,8 +297,6 @@ static int rpcb_create_local_net(struct net *net) clnt = rpc_create(&args); if (IS_ERR(clnt)) { - dprintk("RPC: failed to create local rpcbind " - "client (errno %ld).\n", PTR_ERR(clnt)); result = PTR_ERR(clnt); goto out; } @@ -321,12 +307,8 @@ static int rpcb_create_local_net(struct net *net) * v4 upcalls. */ clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4); - if (IS_ERR(clnt4)) { - dprintk("RPC: failed to bind second program to " - "rpcbind v4 client (errno %ld).\n", - PTR_ERR(clnt4)); + if (IS_ERR(clnt4)) clnt4 = NULL; - } rpcb_set_local(net, clnt, clnt4, false); @@ -362,13 +344,15 @@ static struct rpc_clnt *rpcb_create(struct net *net, const char *nodename, const char *hostname, struct sockaddr *srvaddr, size_t salen, int proto, u32 version, - const struct cred *cred) + const struct cred *cred, + const struct rpc_timeout *timeo) { struct rpc_create_args args = { .net = net, .protocol = proto, .address = srvaddr, .addrsize = salen, + .timeout = timeo, .servername = hostname, .nodename = nodename, .program = &rpcb_program, @@ -403,11 +387,8 @@ static int rpcb_register_call(struct sunrpc_net *sn, struct rpc_clnt *clnt, stru msg->rpc_resp = &result; error = rpc_call_sync(clnt, msg, flags); - if (error < 0) { - dprintk("RPC: failed to contact local rpcbind " - "server (errno %d).\n", -error); + if (error < 0) return error; - } if (!result) return -EACCES; @@ -461,9 +442,7 @@ int rpcb_register(struct net *net, u32 prog, u32 vers, int prot, unsigned short struct sunrpc_net *sn = net_generic(net, sunrpc_net_id); bool is_set = false; - dprintk("RPC: %sregistering (%u, %u, %d, %u) with local " - "rpcbind\n", (port ? "" : "un"), - prog, vers, prot, port); + trace_pmap_register(prog, vers, prot, port); msg.rpc_proc = &rpcb_procedures2[RPCBPROC_UNSET]; if (port != 0) { @@ -489,11 +468,6 @@ static int rpcb_register_inet4(struct sunrpc_net *sn, map->r_addr = rpc_sockaddr2uaddr(sap, GFP_KERNEL); - dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with " - "local rpcbind\n", (port ? "" : "un"), - map->r_prog, map->r_vers, - map->r_addr, map->r_netid); - msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET]; if (port != 0) { msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET]; @@ -520,11 +494,6 @@ static int rpcb_register_inet6(struct sunrpc_net *sn, map->r_addr = rpc_sockaddr2uaddr(sap, GFP_KERNEL); - dprintk("RPC: %sregistering [%u, %u, %s, '%s'] with " - "local rpcbind\n", (port ? "" : "un"), - map->r_prog, map->r_vers, - map->r_addr, map->r_netid); - msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET]; if (port != 0) { msg->rpc_proc = &rpcb_procedures4[RPCBPROC_SET]; @@ -541,9 +510,7 @@ static int rpcb_unregister_all_protofamilies(struct sunrpc_net *sn, { struct rpcbind_args *map = msg->rpc_argp; - dprintk("RPC: unregistering [%u, %u, '%s'] with " - "local rpcbind\n", - map->r_prog, map->r_vers, map->r_netid); + trace_rpcb_unregister(map->r_prog, map->r_vers, map->r_netid); map->r_addr = ""; msg->rpc_proc = &rpcb_procedures4[RPCBPROC_UNSET]; @@ -615,6 +582,8 @@ int rpcb_v4_register(struct net *net, const u32 program, const u32 version, if (address == NULL) return rpcb_unregister_all_protofamilies(sn, &msg); + trace_rpcb_register(map.r_prog, map.r_vers, map.r_addr, map.r_netid); + switch (address->sa_family) { case AF_INET: return rpcb_register_inet4(sn, address, &msg); @@ -693,18 +662,12 @@ void rpcb_getport_async(struct rpc_task *task) rcu_read_unlock(); xprt = xprt_get(task->tk_xprt); - dprintk("RPC: %5u %s(%s, %u, %u, %d)\n", - task->tk_pid, __func__, - xprt->servername, clnt->cl_prog, clnt->cl_vers, xprt->prot); - /* Put self on the wait queue to ensure we get notified if * some other task is already attempting to bind the port */ rpc_sleep_on_timeout(&xprt->binding, task, NULL, jiffies + xprt->bind_timeout); if (xprt_test_and_set_binding(xprt)) { - dprintk("RPC: %5u %s: waiting for another binder\n", - task->tk_pid, __func__); xprt_put(xprt); return; } @@ -712,8 +675,6 @@ void rpcb_getport_async(struct rpc_task *task) /* Someone else may have bound if we slept */ if (xprt_bound(xprt)) { status = 0; - dprintk("RPC: %5u %s: already bound\n", - task->tk_pid, __func__); goto bailout_nofree; } @@ -732,38 +693,30 @@ void rpcb_getport_async(struct rpc_task *task) break; default: status = -EAFNOSUPPORT; - dprintk("RPC: %5u %s: bad address family\n", - task->tk_pid, __func__); goto bailout_nofree; } if (proc == NULL) { xprt->bind_index = 0; status = -EPFNOSUPPORT; - dprintk("RPC: %5u %s: no more getport versions available\n", - task->tk_pid, __func__); goto bailout_nofree; } - dprintk("RPC: %5u %s: trying rpcbind version %u\n", - task->tk_pid, __func__, bind_version); + trace_rpcb_getport(clnt, task, bind_version); rpcb_clnt = rpcb_create(xprt->xprt_net, clnt->cl_nodename, xprt->servername, sap, salen, xprt->prot, bind_version, - clnt->cl_cred); + clnt->cl_cred, + task->tk_client->cl_timeout); if (IS_ERR(rpcb_clnt)) { status = PTR_ERR(rpcb_clnt); - dprintk("RPC: %5u %s: rpcb_create failed, error %ld\n", - task->tk_pid, __func__, PTR_ERR(rpcb_clnt)); goto bailout_nofree; } - map = kzalloc(sizeof(struct rpcbind_args), GFP_NOFS); + map = kzalloc(sizeof(struct rpcbind_args), rpc_task_gfp_mask()); if (!map) { status = -ENOMEM; - dprintk("RPC: %5u %s: no memory available\n", - task->tk_pid, __func__); goto bailout_release_client; } map->r_prog = clnt->cl_prog; @@ -777,11 +730,9 @@ void rpcb_getport_async(struct rpc_task *task) case RPCBVERS_4: case RPCBVERS_3: map->r_netid = xprt->address_strings[RPC_DISPLAY_NETID]; - map->r_addr = rpc_sockaddr2uaddr(sap, GFP_NOFS); + map->r_addr = rpc_sockaddr2uaddr(sap, rpc_task_gfp_mask()); if (!map->r_addr) { status = -ENOMEM; - dprintk("RPC: %5u %s: no memory available\n", - task->tk_pid, __func__); goto bailout_free_args; } map->r_owner = ""; @@ -795,12 +746,6 @@ void rpcb_getport_async(struct rpc_task *task) child = rpcb_call_async(rpcb_clnt, map, proc); rpc_release_client(rpcb_clnt); - if (IS_ERR(child)) { - /* rpcb_map_release() has freed the arguments */ - dprintk("RPC: %5u %s: rpc_run_task failed\n", - task->tk_pid, __func__); - return; - } xprt->stat.bind_count++; rpc_put_task(child); @@ -824,34 +769,33 @@ static void rpcb_getport_done(struct rpc_task *child, void *data) { struct rpcbind_args *map = data; struct rpc_xprt *xprt = map->r_xprt; - int status = child->tk_status; + + map->r_status = child->tk_status; /* Garbage reply: retry with a lesser rpcbind version */ - if (status == -EIO) - status = -EPROTONOSUPPORT; + if (map->r_status == -EIO) + map->r_status = -EPROTONOSUPPORT; /* rpcbind server doesn't support this rpcbind protocol version */ - if (status == -EPROTONOSUPPORT) + if (map->r_status == -EPROTONOSUPPORT) xprt->bind_index++; - if (status < 0) { + if (map->r_status < 0) { /* rpcbind server not available on remote host? */ - xprt->ops->set_port(xprt, 0); + map->r_port = 0; + } else if (map->r_port == 0) { /* Requested RPC service wasn't registered on remote host */ - xprt->ops->set_port(xprt, 0); - status = -EACCES; + map->r_status = -EACCES; } else { /* Succeeded */ - xprt->ops->set_port(xprt, map->r_port); - xprt_set_bound(xprt); - status = 0; + map->r_status = 0; } - dprintk("RPC: %5u rpcb_getport_done(status %d, port %u)\n", - child->tk_pid, status, map->r_port); - - map->r_status = status; + trace_rpcb_setport(child, map->r_status, map->r_port); + xprt->ops->set_port(xprt, map->r_port); + if (map->r_port) + xprt_set_bound(xprt); } /* @@ -864,11 +808,6 @@ static void rpcb_enc_mapping(struct rpc_rqst *req, struct xdr_stream *xdr, const struct rpcbind_args *rpcb = data; __be32 *p; - dprintk("RPC: %5u encoding PMAP_%s call (%u, %u, %d, %u)\n", - req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name, - rpcb->r_prog, rpcb->r_vers, rpcb->r_prot, rpcb->r_port); - p = xdr_reserve_space(xdr, RPCB_mappingargs_sz << 2); *p++ = cpu_to_be32(rpcb->r_prog); *p++ = cpu_to_be32(rpcb->r_vers); @@ -890,8 +829,6 @@ static int rpcb_dec_getport(struct rpc_rqst *req, struct xdr_stream *xdr, return -EIO; port = be32_to_cpup(p); - dprintk("RPC: %5u PMAP_%s result: %lu\n", req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name, port); if (unlikely(port > USHRT_MAX)) return -EIO; @@ -912,11 +849,6 @@ static int rpcb_dec_set(struct rpc_rqst *req, struct xdr_stream *xdr, *boolp = 0; if (*p != xdr_zero) *boolp = 1; - - dprintk("RPC: %5u RPCB_%s call %s\n", - req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name, - (*boolp ? "succeeded" : "failed")); return 0; } @@ -941,12 +873,6 @@ static void rpcb_enc_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr, const struct rpcbind_args *rpcb = data; __be32 *p; - dprintk("RPC: %5u encoding RPCB_%s call (%u, %u, '%s', '%s')\n", - req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name, - rpcb->r_prog, rpcb->r_vers, - rpcb->r_netid, rpcb->r_addr); - p = xdr_reserve_space(xdr, (RPCB_program_sz + RPCB_version_sz) << 2); *p++ = cpu_to_be32(rpcb->r_prog); *p = cpu_to_be32(rpcb->r_vers); @@ -976,11 +902,8 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr, * If the returned universal address is a null string, * the requested RPC service was not registered. */ - if (len == 0) { - dprintk("RPC: %5u RPCB reply: program not registered\n", - req->rq_task->tk_pid); + if (len == 0) return 0; - } if (unlikely(len > RPCBIND_MAXUADDRLEN)) goto out_fail; @@ -988,8 +911,6 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr, p = xdr_inline_decode(xdr, len); if (unlikely(p == NULL)) goto out_fail; - dprintk("RPC: %5u RPCB_%s reply: %s\n", req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name, (char *)p); if (rpc_uaddr2sockaddr(req->rq_xprt->xprt_net, (char *)p, len, sap, sizeof(address)) == 0) @@ -999,9 +920,6 @@ static int rpcb_dec_getaddr(struct rpc_rqst *req, struct xdr_stream *xdr, return 0; out_fail: - dprintk("RPC: %5u malformed RPCB_%s reply\n", - req->rq_task->tk_pid, - req->rq_task->tk_msg.rpc_proc->p_name); return -EIO; } |