X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=lib%2Fsocket.c;h=3f7f89f90c9a368dc5ff6c48c0ab87f790d4e096;hb=18c94b4633c6157c3e75890c15ea51b73e7bf876;hp=733f1f4768e8a0b41c9a51a0903d73e1d08539c0;hpb=bff8fe460dcf4b25071fff966d86877b30eeec90;p=deb_libnfs.git

diff --git a/lib/socket.c b/lib/socket.c
index 733f1f4..3f7f89f 100644
--- a/lib/socket.c
+++ b/lib/socket.c
@@ -24,9 +24,11 @@
 
 #ifdef WIN32
 #include "win32_compat.h"
-#else
+#endif
+
+#ifdef HAVE_ARPA_INET_H
 #include <arpa/inet.h>
-#endif/*WIN32*/
+#endif
 
 #ifdef HAVE_POLL_H
 #include <poll.h>
@@ -44,6 +46,10 @@
 #include <sys/socket.h>
 #endif
 
+#ifdef HAVE_NETINET_TCP_H
+#include <netinet/tcp.h>
+#endif
+
 #ifdef HAVE_NETDB_H
 #include <netdb.h>
 #endif
@@ -74,7 +80,6 @@
 #include "win32_errnowrapper.h"
 #endif
 
-
 static int rpc_reconnect_requeue(struct rpc_context *rpc);
 static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s);
 
@@ -90,6 +95,34 @@ static void set_nonblocking(int fd)
 #endif //FIXME
 }
 
+static void set_nolinger(int fd)
+{
+	struct linger lng;
+	lng.l_onoff = 1;
+	lng.l_linger = 0;
+	setsockopt(fd, SOL_SOCKET, SO_LINGER, &lng, sizeof(lng));
+}
+
+#ifdef HAVE_NETINET_TCP_H
+int set_tcp_sockopt(int sockfd, int optname, int value)
+{
+	int level;
+
+	#if defined(__FreeBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
+	struct protoent *buf;
+
+	if ((buf = getprotobyname("tcp")) != NULL)
+		level = buf->p_proto;
+	else
+		return -1;
+	#else
+		level = SOL_TCP;
+	#endif
+
+	return setsockopt(sockfd, level, optname, (char *)&value, sizeof(value));
+}
+#endif
+
 int rpc_get_fd(struct rpc_context *rpc)
 {
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
@@ -97,6 +130,11 @@ int rpc_get_fd(struct rpc_context *rpc)
 	return rpc->fd;
 }
 
+static int rpc_has_queue(struct rpc_queue *q)
+{
+	return q->head != NULL;
+}
+
 int rpc_which_events(struct rpc_context *rpc)
 {
 	int events;
@@ -110,7 +148,7 @@ int rpc_which_events(struct rpc_context *rpc)
 		return POLLIN;
 	}
 
-	if (rpc->outqueue) {
+	if (rpc_has_queue(&rpc->outqueue)) {
 		events |= POLLOUT;
 	}
 	return events;
@@ -119,6 +157,7 @@ int rpc_which_events(struct rpc_context *rpc)
 static int rpc_write_to_socket(struct rpc_context *rpc)
 {
 	int32_t count;
+	struct rpc_pdu *pdu;
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
@@ -127,12 +166,12 @@ static int rpc_write_to_socket(struct rpc_context *rpc)
 		return -1;
 	}
 
-	while (rpc->outqueue != NULL) {
+	while ((pdu = rpc->outqueue.head) != NULL) {
 		int64_t total;
 
-		total = rpc->outqueue->outdata.size;
+		total = pdu->outdata.size;
 
-		count = send(rpc->fd, rpc->outqueue->outdata.data + rpc->outqueue->written, total - rpc->outqueue->written, 0);
+		count = send(rpc->fd, pdu->outdata.data + pdu->written, total - pdu->written, 0);
 		if (count == -1) {
 			if (errno == EAGAIN || errno == EWOULDBLOCK) {
 				return 0;
@@ -141,12 +180,16 @@ static int rpc_write_to_socket(struct rpc_context *rpc)
 			return -1;
 		}
 
-		rpc->outqueue->written += count;
-		if (rpc->outqueue->written == total) {
-			struct rpc_pdu *pdu = rpc->outqueue;
+		pdu->written += count;
+		if (pdu->written == total) {
+			unsigned int hash;
+
+			rpc->outqueue.head = pdu->next;
+			if (pdu->next == NULL)
+				rpc->outqueue.tail = NULL;
 
-	       	    	SLIST_REMOVE(&rpc->outqueue, pdu);
-			SLIST_ADD_END(&rpc->waitpdu, pdu);
+			hash = rpc_hash_xid(pdu->xid);
+			rpc_enqueue(&rpc->waitpdu[hash], pdu);
 		}
 	}
 	return 0;
@@ -161,8 +204,6 @@ static int rpc_read_from_socket(struct rpc_context *rpc)
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
-	assert(rpc->magic == RPC_CONTEXT_MAGIC);
-
 	if (ioctl(rpc->fd, FIONREAD, &available) != 0) {
 		rpc_set_error(rpc, "Ioctl FIONREAD returned error : %d. Closing socket.", errno);
 		return -1;
@@ -186,6 +227,7 @@ static int rpc_read_from_socket(struct rpc_context *rpc)
 		if (count < 0) {
 			rpc_set_error(rpc, "Failed recvfrom: %s", strerror(errno));
 			free(buf);
+			return -1;
 		}
 		if (rpc_process_pdu(rpc, buf, count) != 0) {
 			rpc_set_error(rpc, "Invalid/garbage pdu received from server. Ignoring PDU");
@@ -227,7 +269,7 @@ static int rpc_read_from_socket(struct rpc_context *rpc)
 	pdu_size = rpc_get_pdu_size(rpc->inbuf);
 	if (rpc->insize < pdu_size) {
 		unsigned char *buf;
-		
+
 		buf = malloc(pdu_size);
 		if (buf == NULL) {
 			rpc_set_error(rpc, "Failed to allocate buffer of %d bytes for pdu, errno:%d. Closing socket.", pdu_size, errno);
@@ -256,14 +298,17 @@ static int rpc_read_from_socket(struct rpc_context *rpc)
 	rpc->inpos += count;
 
 	if (rpc->inpos == rpc->insize) {
-		if (rpc_process_pdu(rpc, rpc->inbuf, pdu_size) != 0) {
-			rpc_set_error(rpc, "Invalid/garbage pdu received from server. Closing socket");
-			return -1;
-		}
-		free(rpc->inbuf);
+		char *buf = rpc->inbuf;
+
 		rpc->inbuf  = NULL;
 		rpc->insize = 0;
 		rpc->inpos  = 0;
+
+		if (rpc_process_pdu(rpc, buf, pdu_size) != 0) {
+			rpc_set_error(rpc, "Invalid/garbage pdu received from server. Closing socket");
+			return -1;
+		}
+		free(buf);
 	}
 
 	return 0;
@@ -341,7 +386,7 @@ int rpc_service(struct rpc_context *rpc, int revents)
 		}
 	}
 
-	if (revents & POLLOUT && rpc->outqueue != NULL) {
+	if (revents & POLLOUT && rpc_has_queue(&rpc->outqueue)) {
 		if (rpc_write_to_socket(rpc) != 0) {
 			rpc_set_error(rpc, "write to socket failed");
 			return -1;
@@ -365,6 +410,17 @@ void rpc_unset_autoreconnect(struct rpc_context *rpc)
 	rpc->auto_reconnect = 0;
 }
 
+void rpc_set_tcp_syncnt(struct rpc_context *rpc, int v)
+{
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	rpc->tcp_syncnt = v;
+}
+
+#ifndef TCP_SYNCNT
+#define TCP_SYNCNT        7
+#endif
+
 static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_storage *s)
 {
 	int socksize;
@@ -375,6 +431,20 @@ static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_s
 	case AF_INET:
 		socksize = sizeof(struct sockaddr_in);
 		rpc->fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+#ifdef HAVE_NETINET_TCP_H
+		if (rpc->tcp_syncnt != RPC_PARAM_UNDEFINED) {
+			set_tcp_sockopt(rpc->fd, TCP_SYNCNT, rpc->tcp_syncnt);
+		}
+#endif
+		break;
+	case AF_INET6:
+		socksize = sizeof(struct sockaddr_in6);
+		rpc->fd = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
+#ifdef HAVE_NETINET_TCP_H
+		if (rpc->tcp_syncnt != RPC_PARAM_UNDEFINED) {
+			set_tcp_sockopt(rpc->fd, TCP_SYNCNT, rpc->tcp_syncnt);
+		}
+#endif
 		break;
 	default:
 		rpc_set_error(rpc, "Can not handle AF_FAMILY:%d", s->ss_family);
@@ -405,7 +475,7 @@ static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_s
 	 * binding will usually succeed.
 	 */
 	{
-		struct sockaddr_in sin;
+		struct sockaddr_storage ss;
 		static int portOfs = 0;
 		const int firstPort = 512;	/* >= 512 according to Sun docs */
 		const int portCount = IPPORT_RESERVED - firstPort;
@@ -422,12 +492,26 @@ static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_s
 
 			/* skip well-known ports */
 			if (!getservbyport(port, "tcp")) {
-				memset(&sin, 0, sizeof(sin));
-				sin.sin_port        = port;
-				sin.sin_family      = AF_INET;
-				sin.sin_addr.s_addr = 0;
+				memset(&ss, 0, sizeof(ss));
+
+				switch (s->ss_family) {
+				case AF_INET:
+					((struct sockaddr_in *)&ss)->sin_port = port;
+					((struct sockaddr_in *)&ss)->sin_family      = AF_INET;
+#ifdef HAVE_SOCKADDR_LEN
+					((struct sockaddr_in *)&ss)->sin_len = sizeof(struct sockaddr_in);
+#endif
+					break;
+				case AF_INET6:
+					((struct sockaddr_in6 *)&ss)->sin6_port = port;
+					((struct sockaddr_in6 *)&ss)->sin6_family      = AF_INET6;
+#ifdef HAVE_SOCKADDR_LEN
+					((struct sockaddr_in6 *)&ss)->sin6_len = sizeof(struct sockaddr_in6);
+#endif
+					break;
+				}
 
-				rc = bind(rpc->fd, (struct sockaddr *)&sin, sizeof(struct sockaddr_in));
+				rc = bind(rpc->fd, (struct sockaddr *)&ss, socksize);
 #if !defined(WIN32)
 				/* we got EACCES, so don't try again */
 				if (rc != 0 && errno == EACCES)
@@ -438,18 +522,19 @@ static int rpc_connect_sockaddr_async(struct rpc_context *rpc, struct sockaddr_s
 	}
 
 	set_nonblocking(rpc->fd);
+	set_nolinger(rpc->fd);
 
 	if (connect(rpc->fd, (struct sockaddr *)s, socksize) != 0 && errno != EINPROGRESS) {
 		rpc_set_error(rpc, "connect() to server failed. %s(%d)", strerror(errno), errno);
 		return -1;
-	}		
+	}
 
 	return 0;
-}	    
+}
 
 int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc_cb cb, void *private_data)
 {
-	struct sockaddr_in *sin = (struct sockaddr_in *)&rpc->s;
+	struct addrinfo *ai = NULL;
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
@@ -465,18 +550,27 @@ int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc
 
 	rpc->auto_reconnect = 0;
 
-	sin->sin_family = AF_INET;
-	sin->sin_port   = htons(port);
-	if (inet_pton(AF_INET, server, &sin->sin_addr) != 1) {
-		rpc_set_error(rpc, "Not a valid server ip address");
+	if (getaddrinfo(server, NULL, NULL, &ai) != 0) {
+		rpc_set_error(rpc, "Invalid address:%s. "
+			      "Can not resolv into IPv4/v6 structure.", server);
 		return -1;
-	}
-
+ 	}
 
-	switch (rpc->s.ss_family) {
+	switch (ai->ai_family) {
 	case AF_INET:
+		((struct sockaddr_in *)&rpc->s)->sin_family = ai->ai_family;
+		((struct sockaddr_in *)&rpc->s)->sin_port   = htons(port);
+		((struct sockaddr_in *)&rpc->s)->sin_addr   = ((struct sockaddr_in *)(ai->ai_addr))->sin_addr;
+#ifdef HAVE_SOCKADDR_LEN
+		((struct sockaddr_in *)&rpc->s)->sin_len = sizeof(struct sockaddr_in);
+#endif
+		break;
+	case AF_INET6:
+		((struct sockaddr_in6 *)&rpc->s)->sin6_family = ai->ai_family;
+		((struct sockaddr_in6 *)&rpc->s)->sin6_port   = htons(port);
+		((struct sockaddr_in6 *)&rpc->s)->sin6_addr   = ((struct sockaddr_in6 *)(ai->ai_addr))->sin6_addr;
 #ifdef HAVE_SOCKADDR_LEN
-		sin->sin_len = sizeof(struct sockaddr_in);
+		((struct sockaddr_in6 *)&rpc->s)->sin6_len = sizeof(struct sockaddr_in6);
 #endif
 		break;
 	}
@@ -484,12 +578,14 @@ int rpc_connect_async(struct rpc_context *rpc, const char *server, int port, rpc
 	rpc->connect_cb  = cb;
 	rpc->connect_data = private_data;
 
+	freeaddrinfo(ai);
+
 	if (rpc_connect_sockaddr_async(rpc, &rpc->s) != 0) {
 		return -1;
 	}
 
 	return 0;
-}	    
+}
 
 int rpc_disconnect(struct rpc_context *rpc, char *error)
 {
@@ -526,6 +622,7 @@ static void reconnect_cb(struct rpc_context *rpc, int status, void *data _U_, vo
 static int rpc_reconnect_requeue(struct rpc_context *rpc)
 {
 	struct rpc_pdu *pdu;
+	unsigned int i;
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
@@ -539,11 +636,15 @@ static int rpc_reconnect_requeue(struct rpc_context *rpc)
 	/* socket is closed so we will not get any replies to any commands
 	 * in flight. Move them all over from the waitpdu queue back to the out queue
 	 */
-	for (pdu=rpc->waitpdu; pdu; pdu=pdu->next) {
-		SLIST_REMOVE(&rpc->waitpdu, pdu);
-		SLIST_ADD(&rpc->outqueue, pdu);
-		/* we have to re-send the whole pdu again */
-		pdu->written = 0;
+	for (i = 0; i < HASHES; i++) {
+		struct rpc_queue *q = &rpc->waitpdu[i];
+
+		for (pdu=q->head; pdu; pdu=pdu->next) {
+			rpc_return_to_queue(&rpc->outqueue, pdu);
+			/* we have to re-send the whole pdu again */
+			pdu->written = 0;
+		}
+		rpc_reset_queue(q);
 	}
 
 	if (rpc->auto_reconnect != 0) {
@@ -574,7 +675,7 @@ int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port)
 	sprintf(service, "%d", port);
 	if (getaddrinfo(addr, service, NULL, &ai) != 0) {
 		rpc_set_error(rpc, "Invalid address:%s. "
-			"Can not resolv into IPv4/v6 structure.");
+			      "Can not resolv into IPv4/v6 structure.", addr);
 		return -1;
  	}
 
@@ -582,13 +683,13 @@ int rpc_bind_udp(struct rpc_context *rpc, char *addr, int port)
 	case AF_INET:
 		rpc->fd = socket(ai->ai_family, SOCK_DGRAM, 0);
 		if (rpc->fd == -1) {
-			rpc_set_error(rpc, "Failed to create UDP socket: %s", strerror(errno)); 
+			rpc_set_error(rpc, "Failed to create UDP socket: %s", strerror(errno));
 			freeaddrinfo(ai);
 			return -1;
 		}
 
 		if (bind(rpc->fd, (struct sockaddr *)ai->ai_addr, sizeof(struct sockaddr_in)) != 0) {
-			rpc_set_error(rpc, "Failed to bind to UDP socket: %s",strerror(errno)); 
+			rpc_set_error(rpc, "Failed to bind to UDP socket: %s",strerror(errno));
 			freeaddrinfo(ai);
 			return -1;
 		}
@@ -619,7 +720,7 @@ int rpc_set_udp_destination(struct rpc_context *rpc, char *addr, int port, int i
 	sprintf(service, "%d", port);
 	if (getaddrinfo(addr, service, NULL, &ai) != 0) {
 		rpc_set_error(rpc, "Invalid address:%s. "
-			"Can not resolv into IPv4/v6 structure.");
+			      "Can not resolv into IPv4/v6 structure.", addr);
 		return -1;
  	}
 
@@ -653,14 +754,26 @@ int rpc_queue_length(struct rpc_context *rpc)
 {
 	int i=0;
 	struct rpc_pdu *pdu;
+	unsigned int n;
 
 	assert(rpc->magic == RPC_CONTEXT_MAGIC);
 
-	for(pdu = rpc->outqueue; pdu; pdu = pdu->next) {
+	for(pdu = rpc->outqueue.head; pdu; pdu = pdu->next) {
 		i++;
 	}
-	for(pdu = rpc->waitpdu; pdu; pdu = pdu->next) {
-		i++;
+
+	for (n = 0; n < HASHES; n++) {
+		struct rpc_queue *q = &rpc->waitpdu[n];
+
+		for(pdu = q->head; pdu; pdu = pdu->next)
+			i++;
 	}
 	return i;
 }
+
+void rpc_set_fd(struct rpc_context *rpc, int fd)
+{
+	assert(rpc->magic == RPC_CONTEXT_MAGIC);
+
+	rpc->fd = fd;
+}