diff options
author | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
---|---|---|
committer | Jeff Garzik <jeff@garzik.org> | 2006-09-24 01:52:47 -0400 |
commit | 23930fa1cebfea6f79881c588ccd1b0781e49e3f (patch) | |
tree | 36d29e3f83661c4f5f45b6f74ac0d5f9886867a8 /net/sunrpc/xprtsock.c | |
parent | 36b35a5be0e4b406acd816e2122d153e875105be (diff) | |
parent | 4f5537de7c1531398e84e18a24f667e49cc94208 (diff) | |
download | kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.zip kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.gz kernel_samsung_smdk4412-23930fa1cebfea6f79881c588ccd1b0781e49e3f.tar.bz2 |
Merge branch 'master' into upstream
Diffstat (limited to 'net/sunrpc/xprtsock.c')
-rw-r--r-- | net/sunrpc/xprtsock.c | 121 |
1 files changed, 95 insertions, 26 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 441bd53..9b62923 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -125,6 +125,47 @@ static inline void xs_pktdump(char *msg, u32 *packet, unsigned int count) } #endif +static void xs_format_peer_addresses(struct rpc_xprt *xprt) +{ + struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr; + char *buf; + + buf = kzalloc(20, GFP_KERNEL); + if (buf) { + snprintf(buf, 20, "%u.%u.%u.%u", + NIPQUAD(addr->sin_addr.s_addr)); + } + xprt->address_strings[RPC_DISPLAY_ADDR] = buf; + + buf = kzalloc(8, GFP_KERNEL); + if (buf) { + snprintf(buf, 8, "%u", + ntohs(addr->sin_port)); + } + 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(48, GFP_KERNEL); + if (buf) { + snprintf(buf, 48, "addr=%u.%u.%u.%u 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; +} + +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]); +} + #define XS_SENDMSG_FLAGS (MSG_DONTWAIT | MSG_NOSIGNAL) static inline int xs_send_head(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base, unsigned int len) @@ -174,7 +215,6 @@ static inline int xs_sendpages(struct socket *sock, struct sockaddr *addr, int a struct page **ppage = xdr->pages; unsigned int len, pglen = xdr->page_len; int err, ret = 0; - ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int); if (unlikely(!sock)) return -ENOTCONN; @@ -207,7 +247,6 @@ static inline int xs_sendpages(struct socket *sock, struct sockaddr *addr, int a base &= ~PAGE_CACHE_MASK; } - sendpage = sock->ops->sendpage ? : sock_no_sendpage; do { int flags = XS_SENDMSG_FLAGS; @@ -220,10 +259,7 @@ static inline int xs_sendpages(struct socket *sock, struct sockaddr *addr, int a if (pglen != len || xdr->tail[0].iov_len != 0) flags |= MSG_MORE; - /* Hmm... We might be dealing with highmem pages */ - if (PageHighMem(*ppage)) - sendpage = sock_no_sendpage; - err = sendpage(sock, *ppage, base, len, flags); + err = kernel_sendpage(sock, *ppage, base, len, flags); if (ret == 0) ret = err; else if (err > 0) @@ -300,7 +336,7 @@ static int xs_udp_send_request(struct rpc_task *task) req->rq_xtime = jiffies; status = xs_sendpages(xprt->sock, (struct sockaddr *) &xprt->addr, - sizeof(xprt->addr), xdr, req->rq_bytes_sent); + xprt->addrlen, xdr, req->rq_bytes_sent); dprintk("RPC: xs_udp_send_request(%u) = %d\n", xdr->len - req->rq_bytes_sent, status); @@ -490,6 +526,7 @@ static void xs_destroy(struct rpc_xprt *xprt) xprt_disconnect(xprt); xs_close(xprt); + xs_free_peer_addresses(xprt); kfree(xprt->slot); } @@ -965,6 +1002,19 @@ static unsigned short xs_get_random_port(void) } /** + * xs_print_peer_address - format an IPv4 address for printing + * @xprt: generic transport + * @format: flags field indicating which parts of the address to render + */ +static char *xs_print_peer_address(struct rpc_xprt *xprt, enum rpc_display_format_t format) +{ + if (xprt->address_strings[format] != NULL) + return xprt->address_strings[format]; + else + return "unprintable"; +} + +/** * xs_set_port - reset the port number in the remote endpoint address * @xprt: generic transport * @port: new port number @@ -972,8 +1022,11 @@ 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; + dprintk("RPC: setting port for xprt %p to %u\n", xprt, port); - xprt->addr.sin_port = htons(port); + + sap->sin_port = htons(port); } static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock) @@ -986,7 +1039,7 @@ static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock) do { myaddr.sin_port = htons(port); - err = sock->ops->bind(sock, (struct sockaddr *) &myaddr, + err = kernel_bind(sock, (struct sockaddr *) &myaddr, sizeof(myaddr)); if (err == 0) { xprt->port = port; @@ -1016,11 +1069,9 @@ static void xs_udp_connect_worker(void *args) struct socket *sock = xprt->sock; int err, status = -EIO; - if (xprt->shutdown || xprt->addr.sin_port == 0) + if (xprt->shutdown || !xprt_bound(xprt)) goto out; - dprintk("RPC: xs_udp_connect_worker for xprt %p\n", xprt); - /* Start by resetting any existing state */ xs_close(xprt); @@ -1034,6 +1085,9 @@ static void xs_udp_connect_worker(void *args) goto out; } + dprintk("RPC: worker connecting xprt %p to address: %s\n", + xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL)); + if (!xprt->inet) { struct sock *sk = sock->sk; @@ -1081,7 +1135,7 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt) */ memset(&any, 0, sizeof(any)); any.sa_family = AF_UNSPEC; - result = sock->ops->connect(sock, &any, sizeof(any), 0); + result = kernel_connect(sock, &any, sizeof(any), 0); if (result) dprintk("RPC: AF_UNSPEC connect return code %d\n", result); @@ -1099,11 +1153,9 @@ static void xs_tcp_connect_worker(void *args) struct socket *sock = xprt->sock; int err, status = -EIO; - if (xprt->shutdown || xprt->addr.sin_port == 0) + if (xprt->shutdown || !xprt_bound(xprt)) goto out; - dprintk("RPC: xs_tcp_connect_worker for xprt %p\n", xprt); - if (!xprt->sock) { /* start from scratch */ if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) { @@ -1119,6 +1171,9 @@ static void xs_tcp_connect_worker(void *args) /* "close" the socket, preserving the local port */ xs_tcp_reuse_connection(xprt); + dprintk("RPC: worker connecting xprt %p to address: %s\n", + xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL)); + if (!xprt->inet) { struct sock *sk = sock->sk; @@ -1151,8 +1206,8 @@ static void xs_tcp_connect_worker(void *args) /* Tell the socket layer to start connecting... */ xprt->stat.connect_count++; xprt->stat.connect_start = jiffies; - status = sock->ops->connect(sock, (struct sockaddr *) &xprt->addr, - sizeof(xprt->addr), O_NONBLOCK); + status = kernel_connect(sock, (struct sockaddr *) &xprt->addr, + xprt->addrlen, O_NONBLOCK); dprintk("RPC: %p connect status %d connected %d sock state %d\n", xprt, -status, xprt_connected(xprt), sock->sk->sk_state); if (status < 0) { @@ -1260,8 +1315,10 @@ static void xs_tcp_print_stats(struct rpc_xprt *xprt, struct seq_file *seq) static struct rpc_xprt_ops xs_udp_ops = { .set_buffer_size = xs_udp_set_buffer_size, + .print_addr = xs_print_peer_address, .reserve_xprt = xprt_reserve_xprt_cong, .release_xprt = xprt_release_xprt_cong, + .rpcbind = rpc_getport, .set_port = xs_set_port, .connect = xs_connect, .buf_alloc = rpc_malloc, @@ -1276,8 +1333,10 @@ static struct rpc_xprt_ops xs_udp_ops = { }; static struct rpc_xprt_ops xs_tcp_ops = { + .print_addr = xs_print_peer_address, .reserve_xprt = xprt_reserve_xprt, .release_xprt = xs_tcp_release_xprt, + .rpcbind = rpc_getport, .set_port = xs_set_port, .connect = xs_connect, .buf_alloc = rpc_malloc, @@ -1298,8 +1357,7 @@ static struct rpc_xprt_ops xs_tcp_ops = { int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to) { size_t slot_table_size; - - dprintk("RPC: setting up udp-ipv4 transport...\n"); + struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr; xprt->max_reqs = xprt_udp_slot_table_entries; slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]); @@ -1307,10 +1365,12 @@ int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to) if (xprt->slot == NULL) return -ENOMEM; - xprt->prot = IPPROTO_UDP; + if (ntohs(addr->sin_port != 0)) + xprt_set_bound(xprt); xprt->port = xs_get_random_port(); + + xprt->prot = IPPROTO_UDP; xprt->tsh_size = 0; - xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0; /* XXX: header size can vary due to auth type, IPv6, etc. */ xprt->max_payload = (1U << 16) - (MAX_HEADER << 3); @@ -1327,6 +1387,10 @@ int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to) else xprt_set_timeout(&xprt->timeout, 5, 5 * HZ); + xs_format_peer_addresses(xprt); + dprintk("RPC: set up transport to address %s\n", + xs_print_peer_address(xprt, RPC_DISPLAY_ALL)); + return 0; } @@ -1339,8 +1403,7 @@ int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to) int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to) { size_t slot_table_size; - - dprintk("RPC: setting up tcp-ipv4 transport...\n"); + struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr; xprt->max_reqs = xprt_tcp_slot_table_entries; slot_table_size = xprt->max_reqs * sizeof(xprt->slot[0]); @@ -1348,10 +1411,12 @@ int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to) if (xprt->slot == NULL) return -ENOMEM; - xprt->prot = IPPROTO_TCP; + if (ntohs(addr->sin_port) != 0) + xprt_set_bound(xprt); xprt->port = xs_get_random_port(); + + xprt->prot = IPPROTO_TCP; xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32); - xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0; xprt->max_payload = RPC_MAX_FRAGMENT_SIZE; INIT_WORK(&xprt->connect_worker, xs_tcp_connect_worker, xprt); @@ -1367,5 +1432,9 @@ int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to) else xprt_set_timeout(&xprt->timeout, 2, 60 * HZ); + xs_format_peer_addresses(xprt); + dprintk("RPC: set up transport to address %s\n", + xs_print_peer_address(xprt, RPC_DISPLAY_ALL)); + return 0; } |