diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 17:46:05 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 17:47:35 (GMT) |
commit | f4921aff5b174349bc36551f142a5dbac782ea3f (patch) | |
tree | bdff8ca1531977ad1d04ac8d70e10f8dfbb26c38 /net/sunrpc/xprtsock.c | |
parent | 419217cb1d0266f62cbea6cdc6b1d1324350bc34 (diff) | |
parent | 05c88babab957dfd63bd351b25042d80bd854dd0 (diff) | |
download | linux-fsl-qoriq-f4921aff5b174349bc36551f142a5dbac782ea3f.tar.xz |
Merge git://git.linux-nfs.org/pub/linux/nfs-2.6
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits)
NFSv4: Fix a typo in nfs_inode_reclaim_delegation
NFS: Add a boot parameter to disable 64 bit inode numbers
NFS: nfs_refresh_inode should clear cache_validity flags on success
NFS: Fix a connectathon regression in NFSv3 and NFSv4
NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode
SUNRPC: Don't call xprt_release in call refresh
SUNRPC: Don't call xprt_release() if call_allocate fails
SUNRPC: Fix buggy UDP transmission
[23/37] Clean up duplicate includes in
[2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static
SUNRPC: Use correct type in buffer length calculations
SUNRPC: Fix default hostname created in rpc_create()
nfs: add server port to rpc_pipe info file
NFS: Get rid of some obsolete macros
NFS: Simplify filehandle revalidation
NFS: Ensure that nfs_link() returns a hashed dentry
NFS: Be strict about dentry revalidation when doing exclusive create
NFS: Don't zap the readdir caches upon error
NFS: Remove the redundant nfs_reval_fsid()
NFSv3: Always use directory post-op attributes in nfs3_proc_lookup
...
Fix up trivial conflict due to sock_owned_by_user() cleanup manually in
net/sunrpc/xprtsock.c
Diffstat (limited to 'net/sunrpc/xprtsock.c')
-rw-r--r-- | net/sunrpc/xprtsock.c | 567 |
1 files changed, 456 insertions, 111 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 282efd4..02298f5 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -13,10 +13,14 @@ * (C) 1999 Trond Myklebust <trond.myklebust@fys.uio.no> * * IP socket transport implementation, (C) 2005 Chuck Lever <cel@netapp.com> + * + * IPv6 support contributed by Gilles Quillard, Bull Open Source, 2005. + * <gilles.quillard@bull.net> */ #include <linux/types.h> #include <linux/slab.h> +#include <linux/module.h> #include <linux/capability.h> #include <linux/pagemap.h> #include <linux/errno.h> @@ -28,6 +32,7 @@ #include <linux/tcp.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/sched.h> +#include <linux/sunrpc/xprtsock.h> #include <linux/file.h> #include <net/sock.h> @@ -260,14 +265,29 @@ struct sock_xprt { #define TCP_RCV_COPY_XID (1UL << 2) #define TCP_RCV_COPY_DATA (1UL << 3) -static void xs_format_peer_addresses(struct rpc_xprt *xprt) +static inline struct sockaddr *xs_addr(struct rpc_xprt *xprt) +{ + return (struct sockaddr *) &xprt->addr; +} + +static inline struct sockaddr_in *xs_addr_in(struct rpc_xprt *xprt) { - struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr; + return (struct sockaddr_in *) &xprt->addr; +} + +static inline struct sockaddr_in6 *xs_addr_in6(struct rpc_xprt *xprt) +{ + return (struct sockaddr_in6 *) &xprt->addr; +} + +static void xs_format_ipv4_peer_addresses(struct rpc_xprt *xprt) +{ + struct sockaddr_in *addr = xs_addr_in(xprt); char *buf; buf = kzalloc(20, GFP_KERNEL); if (buf) { - snprintf(buf, 20, "%u.%u.%u.%u", + snprintf(buf, 20, NIPQUAD_FMT, NIPQUAD(addr->sin_addr.s_addr)); } xprt->address_strings[RPC_DISPLAY_ADDR] = buf; @@ -279,26 +299,123 @@ static void xs_format_peer_addresses(struct rpc_xprt *xprt) } xprt->address_strings[RPC_DISPLAY_PORT] = buf; - if (xprt->prot == IPPROTO_UDP) - xprt->address_strings[RPC_DISPLAY_PROTO] = "udp"; - else - xprt->address_strings[RPC_DISPLAY_PROTO] = "tcp"; + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + if (xprt->prot == IPPROTO_UDP) + snprintf(buf, 8, "udp"); + else + snprintf(buf, 8, "tcp"); + } + xprt->address_strings[RPC_DISPLAY_PROTO] = buf; buf = kzalloc(48, GFP_KERNEL); if (buf) { - snprintf(buf, 48, "addr=%u.%u.%u.%u port=%u proto=%s", + snprintf(buf, 48, "addr="NIPQUAD_FMT" port=%u proto=%s", NIPQUAD(addr->sin_addr.s_addr), ntohs(addr->sin_port), xprt->prot == IPPROTO_UDP ? "udp" : "tcp"); } xprt->address_strings[RPC_DISPLAY_ALL] = buf; + + buf = kzalloc(10, GFP_KERNEL); + if (buf) { + snprintf(buf, 10, "%02x%02x%02x%02x", + NIPQUAD(addr->sin_addr.s_addr)); + } + xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = buf; + + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + snprintf(buf, 8, "%4hx", + ntohs(addr->sin_port)); + } + xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf; + + buf = kzalloc(30, GFP_KERNEL); + if (buf) { + snprintf(buf, 30, NIPQUAD_FMT".%u.%u", + NIPQUAD(addr->sin_addr.s_addr), + ntohs(addr->sin_port) >> 8, + ntohs(addr->sin_port) & 0xff); + } + xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf; + + xprt->address_strings[RPC_DISPLAY_NETID] = + kstrdup(xprt->prot == IPPROTO_UDP ? + RPCBIND_NETID_UDP : RPCBIND_NETID_TCP, GFP_KERNEL); +} + +static void xs_format_ipv6_peer_addresses(struct rpc_xprt *xprt) +{ + struct sockaddr_in6 *addr = xs_addr_in6(xprt); + char *buf; + + buf = kzalloc(40, GFP_KERNEL); + if (buf) { + snprintf(buf, 40, NIP6_FMT, + NIP6(addr->sin6_addr)); + } + xprt->address_strings[RPC_DISPLAY_ADDR] = buf; + + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + snprintf(buf, 8, "%u", + ntohs(addr->sin6_port)); + } + xprt->address_strings[RPC_DISPLAY_PORT] = buf; + + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + if (xprt->prot == IPPROTO_UDP) + snprintf(buf, 8, "udp"); + else + snprintf(buf, 8, "tcp"); + } + xprt->address_strings[RPC_DISPLAY_PROTO] = buf; + + buf = kzalloc(64, GFP_KERNEL); + if (buf) { + snprintf(buf, 64, "addr="NIP6_FMT" port=%u proto=%s", + NIP6(addr->sin6_addr), + ntohs(addr->sin6_port), + xprt->prot == IPPROTO_UDP ? "udp" : "tcp"); + } + xprt->address_strings[RPC_DISPLAY_ALL] = buf; + + buf = kzalloc(36, GFP_KERNEL); + if (buf) { + snprintf(buf, 36, NIP6_SEQFMT, + NIP6(addr->sin6_addr)); + } + xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = buf; + + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + snprintf(buf, 8, "%4hx", + ntohs(addr->sin6_port)); + } + xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf; + + buf = kzalloc(50, GFP_KERNEL); + if (buf) { + snprintf(buf, 50, NIP6_FMT".%u.%u", + NIP6(addr->sin6_addr), + ntohs(addr->sin6_port) >> 8, + ntohs(addr->sin6_port) & 0xff); + } + xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf; + + xprt->address_strings[RPC_DISPLAY_NETID] = + kstrdup(xprt->prot == IPPROTO_UDP ? + RPCBIND_NETID_UDP6 : RPCBIND_NETID_TCP6, GFP_KERNEL); } static void xs_free_peer_addresses(struct rpc_xprt *xprt) { - kfree(xprt->address_strings[RPC_DISPLAY_ADDR]); - kfree(xprt->address_strings[RPC_DISPLAY_PORT]); - kfree(xprt->address_strings[RPC_DISPLAY_ALL]); + int i; + + for (i = 0; i < RPC_DISPLAY_MAX; i++) + kfree(xprt->address_strings[i]); } #define XS_SENDMSG_FLAGS (MSG_DONTWAIT | MSG_NOSIGNAL) @@ -463,19 +580,20 @@ static int xs_udp_send_request(struct rpc_task *task) req->rq_xtime = jiffies; status = xs_sendpages(transport->sock, - (struct sockaddr *) &xprt->addr, + xs_addr(xprt), xprt->addrlen, xdr, req->rq_bytes_sent); dprintk("RPC: xs_udp_send_request(%u) = %d\n", xdr->len - req->rq_bytes_sent, status); - if (likely(status >= (int) req->rq_slen)) - return 0; - - /* Still some bytes left; set up for a retry later. */ - if (status > 0) + if (status >= 0) { + task->tk_bytes_sent += status; + if (status >= req->rq_slen) + return 0; + /* Still some bytes left; set up for a retry later. */ status = -EAGAIN; + } switch (status) { case -ENETUNREACH: @@ -523,7 +641,8 @@ static int xs_tcp_send_request(struct rpc_task *task) struct rpc_xprt *xprt = req->rq_xprt; struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); struct xdr_buf *xdr = &req->rq_snd_buf; - int status, retry = 0; + int status; + unsigned int retry = 0; xs_encode_tcp_record_marker(&req->rq_snd_buf); @@ -661,6 +780,7 @@ static void xs_destroy(struct rpc_xprt *xprt) xs_free_peer_addresses(xprt); kfree(xprt->slot); kfree(xprt); + module_put(THIS_MODULE); } static inline struct rpc_xprt *xprt_from_sock(struct sock *sk) @@ -1139,14 +1259,23 @@ static unsigned short xs_get_random_port(void) */ static void xs_set_port(struct rpc_xprt *xprt, unsigned short port) { - struct sockaddr_in *sap = (struct sockaddr_in *) &xprt->addr; + struct sockaddr *addr = xs_addr(xprt); dprintk("RPC: setting port for xprt %p to %u\n", xprt, port); - sap->sin_port = htons(port); + switch (addr->sa_family) { + case AF_INET: + ((struct sockaddr_in *)addr)->sin_port = htons(port); + break; + case AF_INET6: + ((struct sockaddr_in6 *)addr)->sin6_port = htons(port); + break; + default: + BUG(); + } } -static int xs_bind(struct sock_xprt *transport, struct socket *sock) +static int xs_bind4(struct sock_xprt *transport, struct socket *sock) { struct sockaddr_in myaddr = { .sin_family = AF_INET, @@ -1174,8 +1303,42 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) else port--; } while (err == -EADDRINUSE && port != transport->port); - dprintk("RPC: xs_bind "NIPQUAD_FMT":%u: %s (%d)\n", - NIPQUAD(myaddr.sin_addr), port, err ? "failed" : "ok", err); + dprintk("RPC: %s "NIPQUAD_FMT":%u: %s (%d)\n", + __FUNCTION__, NIPQUAD(myaddr.sin_addr), + port, err ? "failed" : "ok", err); + return err; +} + +static int xs_bind6(struct sock_xprt *transport, struct socket *sock) +{ + struct sockaddr_in6 myaddr = { + .sin6_family = AF_INET6, + }; + struct sockaddr_in6 *sa; + int err; + unsigned short port = transport->port; + + if (!transport->xprt.resvport) + port = 0; + sa = (struct sockaddr_in6 *)&transport->addr; + myaddr.sin6_addr = sa->sin6_addr; + do { + myaddr.sin6_port = htons(port); + err = kernel_bind(sock, (struct sockaddr *) &myaddr, + sizeof(myaddr)); + if (!transport->xprt.resvport) + break; + if (err == 0) { + transport->port = port; + break; + } + if (port <= xprt_min_resvport) + port = xprt_max_resvport; + else + port--; + } while (err == -EADDRINUSE && port != transport->port); + dprintk("RPC: xs_bind6 "NIP6_FMT":%u: %s (%d)\n", + NIP6(myaddr.sin6_addr), port, err ? "failed" : "ok", err); return err; } @@ -1183,38 +1346,69 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) static struct lock_class_key xs_key[2]; static struct lock_class_key xs_slock_key[2]; -static inline void xs_reclassify_socket(struct socket *sock) +static inline void xs_reclassify_socket4(struct socket *sock) { struct sock *sk = sock->sk; + BUG_ON(sock_owned_by_user(sk)); - switch (sk->sk_family) { - case AF_INET: - sock_lock_init_class_and_name(sk, "slock-AF_INET-NFS", - &xs_slock_key[0], "sk_lock-AF_INET-NFS", &xs_key[0]); - break; + sock_lock_init_class_and_name(sk, "slock-AF_INET-RPC", + &xs_slock_key[0], "sk_lock-AF_INET-RPC", &xs_key[0]); +} - case AF_INET6: - sock_lock_init_class_and_name(sk, "slock-AF_INET6-NFS", - &xs_slock_key[1], "sk_lock-AF_INET6-NFS", &xs_key[1]); - break; +static inline void xs_reclassify_socket6(struct socket *sock) +{ + struct sock *sk = sock->sk; - default: - BUG(); - } + BUG_ON(sock_owned_by_user(sk)); + sock_lock_init_class_and_name(sk, "slock-AF_INET6-RPC", + &xs_slock_key[1], "sk_lock-AF_INET6-RPC", &xs_key[1]); } #else -static inline void xs_reclassify_socket(struct socket *sock) +static inline void xs_reclassify_socket4(struct socket *sock) +{ +} + +static inline void xs_reclassify_socket6(struct socket *sock) { } #endif +static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + + if (!transport->inet) { + struct sock *sk = sock->sk; + + write_lock_bh(&sk->sk_callback_lock); + + sk->sk_user_data = xprt; + transport->old_data_ready = sk->sk_data_ready; + transport->old_state_change = sk->sk_state_change; + transport->old_write_space = sk->sk_write_space; + sk->sk_data_ready = xs_udp_data_ready; + sk->sk_write_space = xs_udp_write_space; + sk->sk_no_check = UDP_CSUM_NORCV; + sk->sk_allocation = GFP_ATOMIC; + + xprt_set_connected(xprt); + + /* Reset to new socket */ + transport->sock = sock; + transport->inet = sk; + + write_unlock_bh(&sk->sk_callback_lock); + } + xs_udp_do_set_buffer_size(xprt); +} + /** - * xs_udp_connect_worker - set up a UDP socket + * xs_udp_connect_worker4 - set up a UDP socket * @work: RPC transport to connect * * Invoked by a work queue tasklet. */ -static void xs_udp_connect_worker(struct work_struct *work) +static void xs_udp_connect_worker4(struct work_struct *work) { struct sock_xprt *transport = container_of(work, struct sock_xprt, connect_worker.work); @@ -1232,9 +1426,9 @@ static void xs_udp_connect_worker(struct work_struct *work) dprintk("RPC: can't create UDP transport socket (%d).\n", -err); goto out; } - xs_reclassify_socket(sock); + xs_reclassify_socket4(sock); - if (xs_bind(transport, sock)) { + if (xs_bind4(transport, sock)) { sock_release(sock); goto out; } @@ -1242,29 +1436,48 @@ static void xs_udp_connect_worker(struct work_struct *work) dprintk("RPC: worker connecting xprt %p to address: %s\n", xprt, xprt->address_strings[RPC_DISPLAY_ALL]); - if (!transport->inet) { - struct sock *sk = sock->sk; + xs_udp_finish_connecting(xprt, sock); + status = 0; +out: + xprt_wake_pending_tasks(xprt, status); + xprt_clear_connecting(xprt); +} - write_lock_bh(&sk->sk_callback_lock); +/** + * xs_udp_connect_worker6 - set up a UDP socket + * @work: RPC transport to connect + * + * Invoked by a work queue tasklet. + */ +static void xs_udp_connect_worker6(struct work_struct *work) +{ + struct sock_xprt *transport = + container_of(work, struct sock_xprt, connect_worker.work); + struct rpc_xprt *xprt = &transport->xprt; + struct socket *sock = transport->sock; + int err, status = -EIO; - sk->sk_user_data = xprt; - transport->old_data_ready = sk->sk_data_ready; - transport->old_state_change = sk->sk_state_change; - transport->old_write_space = sk->sk_write_space; - sk->sk_data_ready = xs_udp_data_ready; - sk->sk_write_space = xs_udp_write_space; - sk->sk_no_check = UDP_CSUM_NORCV; - sk->sk_allocation = GFP_ATOMIC; + if (xprt->shutdown || !xprt_bound(xprt)) + goto out; - xprt_set_connected(xprt); + /* Start by resetting any existing state */ + xs_close(xprt); - /* Reset to new socket */ - transport->sock = sock; - transport->inet = sk; + if ((err = sock_create_kern(PF_INET6, SOCK_DGRAM, IPPROTO_UDP, &sock)) < 0) { + dprintk("RPC: can't create UDP transport socket (%d).\n", -err); + goto out; + } + xs_reclassify_socket6(sock); - write_unlock_bh(&sk->sk_callback_lock); + if (xs_bind6(transport, sock) < 0) { + sock_release(sock); + goto out; } - xs_udp_do_set_buffer_size(xprt); + + dprintk("RPC: worker connecting xprt %p to address: %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ALL]); + + xs_udp_finish_connecting(xprt, sock); status = 0; out: xprt_wake_pending_tasks(xprt, status); @@ -1295,13 +1508,52 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt) result); } +static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + + if (!transport->inet) { + struct sock *sk = sock->sk; + + write_lock_bh(&sk->sk_callback_lock); + + sk->sk_user_data = xprt; + transport->old_data_ready = sk->sk_data_ready; + transport->old_state_change = sk->sk_state_change; + transport->old_write_space = sk->sk_write_space; + sk->sk_data_ready = xs_tcp_data_ready; + sk->sk_state_change = xs_tcp_state_change; + sk->sk_write_space = xs_tcp_write_space; + sk->sk_allocation = GFP_ATOMIC; + + /* socket options */ + sk->sk_userlocks |= SOCK_BINDPORT_LOCK; + sock_reset_flag(sk, SOCK_LINGER); + tcp_sk(sk)->linger2 = 0; + tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF; + + xprt_clear_connected(xprt); + + /* Reset to new socket */ + transport->sock = sock; + transport->inet = sk; + + write_unlock_bh(&sk->sk_callback_lock); + } + + /* Tell the socket layer to start connecting... */ + xprt->stat.connect_count++; + xprt->stat.connect_start = jiffies; + return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); +} + /** - * xs_tcp_connect_worker - connect a TCP socket to a remote endpoint + * xs_tcp_connect_worker4 - connect a TCP socket to a remote endpoint * @work: RPC transport to connect * * Invoked by a work queue tasklet. */ -static void xs_tcp_connect_worker(struct work_struct *work) +static void xs_tcp_connect_worker4(struct work_struct *work) { struct sock_xprt *transport = container_of(work, struct sock_xprt, connect_worker.work); @@ -1315,13 +1567,12 @@ static void xs_tcp_connect_worker(struct work_struct *work) if (!sock) { /* start from scratch */ if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) { - dprintk("RPC: can't create TCP transport " - "socket (%d).\n", -err); + dprintk("RPC: can't create TCP transport socket (%d).\n", -err); goto out; } - xs_reclassify_socket(sock); + xs_reclassify_socket4(sock); - if (xs_bind(transport, sock)) { + if (xs_bind4(transport, sock) < 0) { sock_release(sock); goto out; } @@ -1332,43 +1583,70 @@ static void xs_tcp_connect_worker(struct work_struct *work) dprintk("RPC: worker connecting xprt %p to address: %s\n", xprt, xprt->address_strings[RPC_DISPLAY_ALL]); - if (!transport->inet) { - struct sock *sk = sock->sk; - - write_lock_bh(&sk->sk_callback_lock); + status = xs_tcp_finish_connecting(xprt, sock); + dprintk("RPC: %p connect status %d connected %d sock state %d\n", + xprt, -status, xprt_connected(xprt), + sock->sk->sk_state); + if (status < 0) { + switch (status) { + case -EINPROGRESS: + case -EALREADY: + goto out_clear; + case -ECONNREFUSED: + case -ECONNRESET: + /* retry with existing socket, after a delay */ + break; + default: + /* get rid of existing socket, and retry */ + xs_close(xprt); + break; + } + } +out: + xprt_wake_pending_tasks(xprt, status); +out_clear: + xprt_clear_connecting(xprt); +} - sk->sk_user_data = xprt; - transport->old_data_ready = sk->sk_data_ready; - transport->old_state_change = sk->sk_state_change; - transport->old_write_space = sk->sk_write_space; - sk->sk_data_ready = xs_tcp_data_ready; - sk->sk_state_change = xs_tcp_state_change; - sk->sk_write_space = xs_tcp_write_space; - sk->sk_allocation = GFP_ATOMIC; +/** + * xs_tcp_connect_worker6 - connect a TCP socket to a remote endpoint + * @work: RPC transport to connect + * + * Invoked by a work queue tasklet. + */ +static void xs_tcp_connect_worker6(struct work_struct *work) +{ + struct sock_xprt *transport = + container_of(work, struct sock_xprt, connect_worker.work); + struct rpc_xprt *xprt = &transport->xprt; + struct socket *sock = transport->sock; + int err, status = -EIO; - /* socket options */ - sk->sk_userlocks |= SOCK_BINDPORT_LOCK; - sock_reset_flag(sk, SOCK_LINGER); - tcp_sk(sk)->linger2 = 0; - tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF; + if (xprt->shutdown || !xprt_bound(xprt)) + goto out; - xprt_clear_connected(xprt); + if (!sock) { + /* start from scratch */ + if ((err = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) { + dprintk("RPC: can't create TCP transport socket (%d).\n", -err); + goto out; + } + xs_reclassify_socket6(sock); - /* Reset to new socket */ - transport->sock = sock; - transport->inet = sk; + if (xs_bind6(transport, sock) < 0) { + sock_release(sock); + goto out; + } + } else + /* "close" the socket, preserving the local port */ + xs_tcp_reuse_connection(xprt); - write_unlock_bh(&sk->sk_callback_lock); - } + dprintk("RPC: worker connecting xprt %p to address: %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ALL]); - /* Tell the socket layer to start connecting... */ - xprt->stat.connect_count++; - xprt->stat.connect_start = jiffies; - status = kernel_connect(sock, (struct sockaddr *) &xprt->addr, - xprt->addrlen, O_NONBLOCK); + status = xs_tcp_finish_connecting(xprt, sock); dprintk("RPC: %p connect status %d connected %d sock state %d\n", - xprt, -status, xprt_connected(xprt), - sock->sk->sk_state); + xprt, -status, xprt_connected(xprt), sock->sk->sk_state); if (status < 0) { switch (status) { case -EINPROGRESS: @@ -1508,7 +1786,8 @@ static struct rpc_xprt_ops xs_tcp_ops = { .print_stats = xs_tcp_print_stats, }; -static struct rpc_xprt *xs_setup_xprt(struct rpc_xprtsock_create *args, unsigned int slot_table_size) +static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args, + unsigned int slot_table_size) { struct rpc_xprt *xprt; struct sock_xprt *new; @@ -1549,8 +1828,9 @@ static struct rpc_xprt *xs_setup_xprt(struct rpc_xprtsock_create *args, unsigned * @args: rpc transport creation arguments * */ -struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args) +struct rpc_xprt *xs_setup_udp(struct xprt_create *args) { + struct sockaddr *addr = args->dstaddr; struct rpc_xprt *xprt; struct sock_xprt *transport; @@ -1559,15 +1839,11 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args) return xprt; transport = container_of(xprt, struct sock_xprt, xprt); - if (ntohs(((struct sockaddr_in *)args->dstaddr)->sin_port) != 0) - xprt_set_bound(xprt); - xprt->prot = IPPROTO_UDP; xprt->tsh_size = 0; /* XXX: header size can vary due to auth type, IPv6, etc. */ xprt->max_payload = (1U << 16) - (MAX_HEADER << 3); - INIT_DELAYED_WORK(&transport->connect_worker, xs_udp_connect_worker); xprt->bind_timeout = XS_BIND_TO; xprt->connect_timeout = XS_UDP_CONN_TO; xprt->reestablish_timeout = XS_UDP_REEST_TO; @@ -1580,11 +1856,37 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args) else xprt_set_timeout(&xprt->timeout, 5, 5 * HZ); - xs_format_peer_addresses(xprt); + switch (addr->sa_family) { + case AF_INET: + if (((struct sockaddr_in *)addr)->sin_port != htons(0)) + xprt_set_bound(xprt); + + INIT_DELAYED_WORK(&transport->connect_worker, + xs_udp_connect_worker4); + xs_format_ipv4_peer_addresses(xprt); + break; + case AF_INET6: + if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0)) + xprt_set_bound(xprt); + + INIT_DELAYED_WORK(&transport->connect_worker, + xs_udp_connect_worker6); + xs_format_ipv6_peer_addresses(xprt); + break; + default: + kfree(xprt); + return ERR_PTR(-EAFNOSUPPORT); + } + dprintk("RPC: set up transport to address %s\n", xprt->address_strings[RPC_DISPLAY_ALL]); - return xprt; + if (try_module_get(THIS_MODULE)) + return xprt; + + kfree(xprt->slot); + kfree(xprt); + return ERR_PTR(-EINVAL); } /** @@ -1592,8 +1894,9 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args) * @args: rpc transport creation arguments * */ -struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args) +struct rpc_xprt *xs_setup_tcp(struct xprt_create *args) { + struct sockaddr *addr = args->dstaddr; struct rpc_xprt *xprt; struct sock_xprt *transport; @@ -1602,14 +1905,10 @@ struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args) return xprt; transport = container_of(xprt, struct sock_xprt, xprt); - if (ntohs(((struct sockaddr_in *)args->dstaddr)->sin_port) != 0) - xprt_set_bound(xprt); - xprt->prot = IPPROTO_TCP; xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32); xprt->max_payload = RPC_MAX_FRAGMENT_SIZE; - INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker); xprt->bind_timeout = XS_BIND_TO; xprt->connect_timeout = XS_TCP_CONN_TO; xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO; @@ -1622,15 +1921,55 @@ struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args) else xprt_set_timeout(&xprt->timeout, 2, 60 * HZ); - xs_format_peer_addresses(xprt); + switch (addr->sa_family) { + case AF_INET: + if (((struct sockaddr_in *)addr)->sin_port != htons(0)) + xprt_set_bound(xprt); + + INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker4); + xs_format_ipv4_peer_addresses(xprt); + break; + case AF_INET6: + if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0)) + xprt_set_bound(xprt); + + INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker6); + xs_format_ipv6_peer_addresses(xprt); + break; + default: + kfree(xprt); + return ERR_PTR(-EAFNOSUPPORT); + } + dprintk("RPC: set up transport to address %s\n", xprt->address_strings[RPC_DISPLAY_ALL]); - return xprt; + if (try_module_get(THIS_MODULE)) + return xprt; + + kfree(xprt->slot); + kfree(xprt); + return ERR_PTR(-EINVAL); } +static struct xprt_class xs_udp_transport = { + .list = LIST_HEAD_INIT(xs_udp_transport.list), + .name = "udp", + .owner = THIS_MODULE, + .ident = IPPROTO_UDP, + .setup = xs_setup_udp, +}; + +static struct xprt_class xs_tcp_transport = { + .list = LIST_HEAD_INIT(xs_tcp_transport.list), + .name = "tcp", + .owner = THIS_MODULE, + .ident = IPPROTO_TCP, + .setup = xs_setup_tcp, +}; + /** - * init_socket_xprt - set up xprtsock's sysctls + * init_socket_xprt - set up xprtsock's sysctls, register with RPC client * */ int init_socket_xprt(void) @@ -1640,11 +1979,14 @@ int init_socket_xprt(void) sunrpc_table_header = register_sysctl_table(sunrpc_table); #endif + xprt_register_transport(&xs_udp_transport); + xprt_register_transport(&xs_tcp_transport); + return 0; } /** - * cleanup_socket_xprt - remove xprtsock's sysctls + * cleanup_socket_xprt - remove xprtsock's sysctls, unregister * */ void cleanup_socket_xprt(void) @@ -1655,4 +1997,7 @@ void cleanup_socket_xprt(void) sunrpc_table_header = NULL; } #endif + + xprt_unregister_transport(&xs_udp_transport); + xprt_unregister_transport(&xs_tcp_transport); } |