--- /dev/null
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "config-host.h"
+
+#include "net/net.h"
+#include "clients.h"
+#include "monitor/monitor.h"
+#include "qemu-common.h"
+#include "qemu/error-report.h"
+#include "qemu/option.h"
+#include "qemu/sockets.h"
+#include "qemu/iov.h"
+#include "qemu/main-loop.h"
+
+typedef struct NetSocketState {
+ NetClientState nc;
+ int listen_fd;
+ int fd;
+ int state; /* 0 = getting length, 1 = getting data */
+ unsigned int index;
+ unsigned int packet_len;
+ unsigned int send_index; /* number of bytes sent (only SOCK_STREAM) */
+ uint8_t buf[NET_BUFSIZE];
+ struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
+ IOHandler *send_fn; /* differs between SOCK_STREAM/SOCK_DGRAM */
+ bool read_poll; /* waiting to receive data? */
+ bool write_poll; /* waiting to transmit data? */
+} NetSocketState;
+
+static void net_socket_accept(void *opaque);
+static void net_socket_writable(void *opaque);
+
+static void net_socket_update_fd_handler(NetSocketState *s)
+{
+ qemu_set_fd_handler(s->fd,
+ s->read_poll ? s->send_fn : NULL,
+ s->write_poll ? net_socket_writable : NULL,
+ s);
+}
+
+static void net_socket_read_poll(NetSocketState *s, bool enable)
+{
+ s->read_poll = enable;
+ net_socket_update_fd_handler(s);
+}
+
+static void net_socket_write_poll(NetSocketState *s, bool enable)
+{
+ s->write_poll = enable;
+ net_socket_update_fd_handler(s);
+}
+
+static void net_socket_writable(void *opaque)
+{
+ NetSocketState *s = opaque;
+
+ net_socket_write_poll(s, false);
+
+ qemu_flush_queued_packets(&s->nc);
+}
+
+static ssize_t net_socket_receive(NetClientState *nc, const uint8_t *buf, size_t size)
+{
+ NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
+ uint32_t len = htonl(size);
+ struct iovec iov[] = {
+ {
+ .iov_base = &len,
+ .iov_len = sizeof(len),
+ }, {
+ .iov_base = (void *)buf,
+ .iov_len = size,
+ },
+ };
+ size_t remaining;
+ ssize_t ret;
+
+ remaining = iov_size(iov, 2) - s->send_index;
+ ret = iov_send(s->fd, iov, 2, s->send_index, remaining);
+
+ if (ret == -1 && errno == EAGAIN) {
+ ret = 0; /* handled further down */
+ }
+ if (ret == -1) {
+ s->send_index = 0;
+ return -errno;
+ }
+ if (ret < (ssize_t)remaining) {
+ s->send_index += ret;
+ net_socket_write_poll(s, true);
+ return 0;
+ }
+ s->send_index = 0;
+ return size;
+}
+
+static ssize_t net_socket_receive_dgram(NetClientState *nc, const uint8_t *buf, size_t size)
+{
+ NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
+ ssize_t ret;
+
+ do {
+ ret = qemu_sendto(s->fd, buf, size, 0,
+ (struct sockaddr *)&s->dgram_dst,
+ sizeof(s->dgram_dst));
+ } while (ret == -1 && errno == EINTR);
+
+ if (ret == -1 && errno == EAGAIN) {
+ net_socket_write_poll(s, true);
+ return 0;
+ }
+ return ret;
+}
+
+static void net_socket_send_completed(NetClientState *nc, ssize_t len)
+{
+ NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
+
+ if (!s->read_poll) {
+ net_socket_read_poll(s, true);
+ }
+}
+
+static void net_socket_send(void *opaque)
+{
+ NetSocketState *s = opaque;
+ int size, err;
+ unsigned l;
+ uint8_t buf1[NET_BUFSIZE];
+ const uint8_t *buf;
+
+ size = qemu_recv(s->fd, buf1, sizeof(buf1), 0);
+ if (size < 0) {
+ err = socket_error();
+ if (err != EWOULDBLOCK)
+ goto eoc;
+ } else if (size == 0) {
+ /* end of connection */
+ eoc:
+ net_socket_read_poll(s, false);
+ net_socket_write_poll(s, false);
+ if (s->listen_fd != -1) {
+ qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s);
+ }
+ closesocket(s->fd);
+
+ s->fd = -1;
+ s->state = 0;
+ s->index = 0;
+ s->packet_len = 0;
+ s->nc.link_down = true;
+ memset(s->buf, 0, sizeof(s->buf));
+ memset(s->nc.info_str, 0, sizeof(s->nc.info_str));
+
+ return;
+ }
+ buf = buf1;
+ while (size > 0) {
+ /* reassemble a packet from the network */
+ switch(s->state) {
+ case 0:
+ l = 4 - s->index;
+ if (l > size)
+ l = size;
+ memcpy(s->buf + s->index, buf, l);
+ buf += l;
+ size -= l;
+ s->index += l;
+ if (s->index == 4) {
+ /* got length */
+ s->packet_len = ntohl(*(uint32_t *)s->buf);
+ s->index = 0;
+ s->state = 1;
+ }
+ break;
+ case 1:
+ l = s->packet_len - s->index;
+ if (l > size)
+ l = size;
+ if (s->index + l <= sizeof(s->buf)) {
+ memcpy(s->buf + s->index, buf, l);
+ } else {
+ fprintf(stderr, "serious error: oversized packet received,"
+ "connection terminated.\n");
+ s->state = 0;
+ goto eoc;
+ }
+
+ s->index += l;
+ buf += l;
+ size -= l;
+ if (s->index >= s->packet_len) {
+ s->index = 0;
+ s->state = 0;
+ if (qemu_send_packet_async(&s->nc, s->buf, s->packet_len,
+ net_socket_send_completed) == 0) {
+ net_socket_read_poll(s, false);
+ break;
+ }
+ }
+ break;
+ }
+ }
+}
+
+static void net_socket_send_dgram(void *opaque)
+{
+ NetSocketState *s = opaque;
+ int size;
+
+ size = qemu_recv(s->fd, s->buf, sizeof(s->buf), 0);
+ if (size < 0)
+ return;
+ if (size == 0) {
+ /* end of connection */
+ net_socket_read_poll(s, false);
+ net_socket_write_poll(s, false);
+ return;
+ }
+ if (qemu_send_packet_async(&s->nc, s->buf, size,
+ net_socket_send_completed) == 0) {
+ net_socket_read_poll(s, false);
+ }
+}
+
+static int net_socket_mcast_create(struct sockaddr_in *mcastaddr, struct in_addr *localaddr)
+{
+ struct ip_mreq imr;
+ int fd;
+ int val, ret;
+#ifdef __OpenBSD__
+ unsigned char loop;
+#else
+ int loop;
+#endif
+
+ if (!IN_MULTICAST(ntohl(mcastaddr->sin_addr.s_addr))) {
+ fprintf(stderr, "qemu: error: specified mcastaddr \"%s\" (0x%08x) "
+ "does not contain a multicast address\n",
+ inet_ntoa(mcastaddr->sin_addr),
+ (int)ntohl(mcastaddr->sin_addr.s_addr));
+ return -1;
+
+ }
+ fd = qemu_socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ perror("socket(PF_INET, SOCK_DGRAM)");
+ return -1;
+ }
+
+ /* Allow multiple sockets to bind the same multicast ip and port by setting
+ * SO_REUSEADDR. This is the only situation where SO_REUSEADDR should be set
+ * on windows. Use socket_set_fast_reuse otherwise as it sets SO_REUSEADDR
+ * only on posix systems.
+ */
+ val = 1;
+ ret = qemu_setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
+ if (ret < 0) {
+ perror("setsockopt(SOL_SOCKET, SO_REUSEADDR)");
+ goto fail;
+ }
+
+ ret = bind(fd, (struct sockaddr *)mcastaddr, sizeof(*mcastaddr));
+ if (ret < 0) {
+ perror("bind");
+ goto fail;
+ }
+
+ /* Add host to multicast group */
+ imr.imr_multiaddr = mcastaddr->sin_addr;
+ if (localaddr) {
+ imr.imr_interface = *localaddr;
+ } else {
+ imr.imr_interface.s_addr = htonl(INADDR_ANY);
+ }
+
+ ret = qemu_setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ &imr, sizeof(struct ip_mreq));
+ if (ret < 0) {
+ perror("setsockopt(IP_ADD_MEMBERSHIP)");
+ goto fail;
+ }
+
+ /* Force mcast msgs to loopback (eg. several QEMUs in same host */
+ loop = 1;
+ ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
+ &loop, sizeof(loop));
+ if (ret < 0) {
+ perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
+ goto fail;
+ }
+
+ /* If a bind address is given, only send packets from that address */
+ if (localaddr != NULL) {
+ ret = qemu_setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF,
+ localaddr, sizeof(*localaddr));
+ if (ret < 0) {
+ perror("setsockopt(IP_MULTICAST_IF)");
+ goto fail;
+ }
+ }
+
+ qemu_set_nonblock(fd);
+ return fd;
+fail:
+ if (fd >= 0)
+ closesocket(fd);
+ return -1;
+}
+
+static void net_socket_cleanup(NetClientState *nc)
+{
+ NetSocketState *s = DO_UPCAST(NetSocketState, nc, nc);
+ if (s->fd != -1) {
+ net_socket_read_poll(s, false);
+ net_socket_write_poll(s, false);
+ close(s->fd);
+ s->fd = -1;
+ }
+ if (s->listen_fd != -1) {
+ qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
+ closesocket(s->listen_fd);
+ s->listen_fd = -1;
+ }
+}
+
+static NetClientInfo net_dgram_socket_info = {
+ .type = NET_CLIENT_OPTIONS_KIND_SOCKET,
+ .size = sizeof(NetSocketState),
+ .receive = net_socket_receive_dgram,
+ .cleanup = net_socket_cleanup,
+};
+
+static NetSocketState *net_socket_fd_init_dgram(NetClientState *peer,
+ const char *model,
+ const char *name,
+ int fd, int is_connected)
+{
+ struct sockaddr_in saddr;
+ int newfd;
+ socklen_t saddr_len = sizeof(saddr);
+ NetClientState *nc;
+ NetSocketState *s;
+
+ /* fd passed: multicast: "learn" dgram_dst address from bound address and save it
+ * Because this may be "shared" socket from a "master" process, datagrams would be recv()
+ * by ONLY ONE process: we must "clone" this dgram socket --jjo
+ */
+
+ if (is_connected) {
+ if (getsockname(fd, (struct sockaddr *) &saddr, &saddr_len) == 0) {
+ /* must be bound */
+ if (saddr.sin_addr.s_addr == 0) {
+ fprintf(stderr, "qemu: error: init_dgram: fd=%d unbound, "
+ "cannot setup multicast dst addr\n", fd);
+ goto err;
+ }
+ /* clone dgram socket */
+ newfd = net_socket_mcast_create(&saddr, NULL);
+ if (newfd < 0) {
+ /* error already reported by net_socket_mcast_create() */
+ goto err;
+ }
+ /* clone newfd to fd, close newfd */
+ dup2(newfd, fd);
+ close(newfd);
+
+ } else {
+ fprintf(stderr,
+ "qemu: error: init_dgram: fd=%d failed getsockname(): %s\n",
+ fd, strerror(errno));
+ goto err;
+ }
+ }
+
+ nc = qemu_new_net_client(&net_dgram_socket_info, peer, model, name);
+
+ s = DO_UPCAST(NetSocketState, nc, nc);
+
+ s->fd = fd;
+ s->listen_fd = -1;
+ s->send_fn = net_socket_send_dgram;
+ net_socket_read_poll(s, true);
+
+ /* mcast: save bound address as dst */
+ if (is_connected) {
+ s->dgram_dst = saddr;
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "socket: fd=%d (cloned mcast=%s:%d)",
+ fd, inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ } else {
+ snprintf(nc->info_str, sizeof(nc->info_str),
+ "socket: fd=%d", fd);
+ }
+
+ return s;
+
+err:
+ closesocket(fd);
+ return NULL;
+}
+
+static void net_socket_connect(void *opaque)
+{
+ NetSocketState *s = opaque;
+ s->send_fn = net_socket_send;
+ net_socket_read_poll(s, true);
+}
+
+static NetClientInfo net_socket_info = {
+ .type = NET_CLIENT_OPTIONS_KIND_SOCKET,
+ .size = sizeof(NetSocketState),
+ .receive = net_socket_receive,
+ .cleanup = net_socket_cleanup,
+};
+
+static NetSocketState *net_socket_fd_init_stream(NetClientState *peer,
+ const char *model,
+ const char *name,
+ int fd, int is_connected)
+{
+ NetClientState *nc;
+ NetSocketState *s;
+
+ nc = qemu_new_net_client(&net_socket_info, peer, model, name);
+
+ snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=%d", fd);
+
+ s = DO_UPCAST(NetSocketState, nc, nc);
+
+ s->fd = fd;
+ s->listen_fd = -1;
+
+ /* Disable Nagle algorithm on TCP sockets to reduce latency */
+ socket_set_nodelay(fd);
+
+ if (is_connected) {
+ net_socket_connect(s);
+ } else {
+ qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s);
+ }
+ return s;
+}
+
+static NetSocketState *net_socket_fd_init(NetClientState *peer,
+ const char *model, const char *name,
+ int fd, int is_connected)
+{
+ int so_type = -1, optlen=sizeof(so_type);
+
+ if(getsockopt(fd, SOL_SOCKET, SO_TYPE, (char *)&so_type,
+ (socklen_t *)&optlen)< 0) {
+ fprintf(stderr, "qemu: error: getsockopt(SO_TYPE) for fd=%d failed\n",
+ fd);
+ closesocket(fd);
+ return NULL;
+ }
+ switch(so_type) {
+ case SOCK_DGRAM:
+ return net_socket_fd_init_dgram(peer, model, name, fd, is_connected);
+ case SOCK_STREAM:
+ return net_socket_fd_init_stream(peer, model, name, fd, is_connected);
+ default:
+ /* who knows ... this could be a eg. a pty, do warn and continue as stream */
+ fprintf(stderr, "qemu: warning: socket type=%d for fd=%d is not SOCK_DGRAM or SOCK_STREAM\n", so_type, fd);
+ return net_socket_fd_init_stream(peer, model, name, fd, is_connected);
+ }
+ return NULL;
+}
+
+static void net_socket_accept(void *opaque)
+{
+ NetSocketState *s = opaque;
+ struct sockaddr_in saddr;
+ socklen_t len;
+ int fd;
+
+ for(;;) {
+ len = sizeof(saddr);
+ fd = qemu_accept(s->listen_fd, (struct sockaddr *)&saddr, &len);
+ if (fd < 0 && errno != EINTR) {
+ return;
+ } else if (fd >= 0) {
+ qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
+ break;
+ }
+ }
+
+ s->fd = fd;
+ s->nc.link_down = false;
+ net_socket_connect(s);
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: connection from %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+}
+
+static int net_socket_listen_init(NetClientState *peer,
+ const char *model,
+ const char *name,
+ const char *host_str)
+{
+ NetClientState *nc;
+ NetSocketState *s;
+ struct sockaddr_in saddr;
+ int fd, ret;
+
+ if (parse_host_port(&saddr, host_str) < 0)
+ return -1;
+
+ fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
+ if (fd < 0) {
+ perror("socket");
+ return -1;
+ }
+ qemu_set_nonblock(fd);
+
+ socket_set_fast_reuse(fd);
+
+ ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
+ if (ret < 0) {
+ perror("bind");
+ closesocket(fd);
+ return -1;
+ }
+ ret = listen(fd, 0);
+ if (ret < 0) {
+ perror("listen");
+ closesocket(fd);
+ return -1;
+ }
+
+ nc = qemu_new_net_client(&net_socket_info, peer, model, name);
+ s = DO_UPCAST(NetSocketState, nc, nc);
+ s->fd = -1;
+ s->listen_fd = fd;
+ s->nc.link_down = true;
+
+ qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s);
+ return 0;
+}
+
+static int net_socket_connect_init(NetClientState *peer,
+ const char *model,
+ const char *name,
+ const char *host_str)
+{
+ NetSocketState *s;
+ int fd, connected, ret, err;
+ struct sockaddr_in saddr;
+
+ if (parse_host_port(&saddr, host_str) < 0)
+ return -1;
+
+ fd = qemu_socket(PF_INET, SOCK_STREAM, 0);
+ if (fd < 0) {
+ perror("socket");
+ return -1;
+ }
+ qemu_set_nonblock(fd);
+
+ connected = 0;
+ for(;;) {
+ ret = connect(fd, (struct sockaddr *)&saddr, sizeof(saddr));
+ if (ret < 0) {
+ err = socket_error();
+ if (err == EINTR || err == EWOULDBLOCK) {
+ } else if (err == EINPROGRESS) {
+ break;
+#ifdef _WIN32
+ } else if (err == WSAEALREADY || err == WSAEINVAL) {
+ break;
+#endif
+ } else {
+ perror("connect");
+ closesocket(fd);
+ return -1;
+ }
+ } else {
+ connected = 1;
+ break;
+ }
+ }
+ s = net_socket_fd_init(peer, model, name, fd, connected);
+ if (!s)
+ return -1;
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: connect to %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ return 0;
+}
+
+static int net_socket_mcast_init(NetClientState *peer,
+ const char *model,
+ const char *name,
+ const char *host_str,
+ const char *localaddr_str)
+{
+ NetSocketState *s;
+ int fd;
+ struct sockaddr_in saddr;
+ struct in_addr localaddr, *param_localaddr;
+
+ if (parse_host_port(&saddr, host_str) < 0)
+ return -1;
+
+ if (localaddr_str != NULL) {
+ if (inet_aton(localaddr_str, &localaddr) == 0)
+ return -1;
+ param_localaddr = &localaddr;
+ } else {
+ param_localaddr = NULL;
+ }
+
+ fd = net_socket_mcast_create(&saddr, param_localaddr);
+ if (fd < 0)
+ return -1;
+
+ s = net_socket_fd_init(peer, model, name, fd, 0);
+ if (!s)
+ return -1;
+
+ s->dgram_dst = saddr;
+
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: mcast=%s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ return 0;
+
+}
+
+static int net_socket_udp_init(NetClientState *peer,
+ const char *model,
+ const char *name,
+ const char *rhost,
+ const char *lhost)
+{
+ NetSocketState *s;
+ int fd, ret;
+ struct sockaddr_in laddr, raddr;
+
+ if (parse_host_port(&laddr, lhost) < 0) {
+ return -1;
+ }
+
+ if (parse_host_port(&raddr, rhost) < 0) {
+ return -1;
+ }
+
+ fd = qemu_socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ perror("socket(PF_INET, SOCK_DGRAM)");
+ return -1;
+ }
+
+ ret = socket_set_fast_reuse(fd);
+ if (ret < 0) {
+ closesocket(fd);
+ return -1;
+ }
+ ret = bind(fd, (struct sockaddr *)&laddr, sizeof(laddr));
+ if (ret < 0) {
+ perror("bind");
+ closesocket(fd);
+ return -1;
+ }
+ qemu_set_nonblock(fd);
+
+ s = net_socket_fd_init(peer, model, name, fd, 0);
+ if (!s) {
+ return -1;
+ }
+
+ s->dgram_dst = raddr;
+
+ snprintf(s->nc.info_str, sizeof(s->nc.info_str),
+ "socket: udp=%s:%d",
+ inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port));
+ return 0;
+}
+
+int net_init_socket(const NetClientOptions *opts, const char *name,
+ NetClientState *peer, Error **errp)
+{
+ /* FIXME error_setg(errp, ...) on failure */
+ Error *err = NULL;
+ const NetdevSocketOptions *sock;
+
+ assert(opts->kind == NET_CLIENT_OPTIONS_KIND_SOCKET);
+ sock = opts->socket;
+
+ if (sock->has_fd + sock->has_listen + sock->has_connect + sock->has_mcast +
+ sock->has_udp != 1) {
+ error_report("exactly one of fd=, listen=, connect=, mcast= or udp="
+ " is required");
+ return -1;
+ }
+
+ if (sock->has_localaddr && !sock->has_mcast && !sock->has_udp) {
+ error_report("localaddr= is only valid with mcast= or udp=");
+ return -1;
+ }
+
+ if (sock->has_fd) {
+ int fd;
+
+ fd = monitor_fd_param(cur_mon, sock->fd, &err);
+ if (fd == -1) {
+ error_report_err(err);
+ return -1;
+ }
+ qemu_set_nonblock(fd);
+ if (!net_socket_fd_init(peer, "socket", name, fd, 1)) {
+ return -1;
+ }
+ return 0;
+ }
+
+ if (sock->has_listen) {
+ if (net_socket_listen_init(peer, "socket", name, sock->listen) == -1) {
+ return -1;
+ }
+ return 0;
+ }
+
+ if (sock->has_connect) {
+ if (net_socket_connect_init(peer, "socket", name, sock->connect) ==
+ -1) {
+ return -1;
+ }
+ return 0;
+ }
+
+ if (sock->has_mcast) {
+ /* if sock->localaddr is missing, it has been initialized to "all bits
+ * zero" */
+ if (net_socket_mcast_init(peer, "socket", name, sock->mcast,
+ sock->localaddr) == -1) {
+ return -1;
+ }
+ return 0;
+ }
+
+ assert(sock->has_udp);
+ if (!sock->has_localaddr) {
+ error_report("localaddr= is mandatory with udp=");
+ return -1;
+ }
+ if (net_socket_udp_init(peer, "socket", name, sock->udp, sock->localaddr) ==
+ -1) {
+ return -1;
+ }
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff