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-rw-r--r--Makefile1
-rw-r--r--net.c530
-rw-r--r--net/socket.c561
-rw-r--r--net/socket.h33
4 files changed, 596 insertions, 529 deletions
diff --git a/Makefile b/Makefile
index fa10459e2d..29ef8a9cb4 100644
--- a/Makefile
+++ b/Makefile
@@ -100,6 +100,7 @@ block-obj-y += $(addprefix block/, $(block-nested-y))
net-obj-y = net.o
net-nested-y = queue.o checksum.o
+net-nested-y += socket.o
net-nested-$(CONFIG_POSIX) += tap.o
net-nested-$(CONFIG_LINUX) += tap-linux.o
net-nested-$(CONFIG_WIN32) += tap-win32.o
diff --git a/net.c b/net.c
index a9ebaa2db4..765cd2c876 100644
--- a/net.c
+++ b/net.c
@@ -89,6 +89,7 @@
#include "qemu-common.h"
#include "net.h"
#include "net/tap.h"
+#include "net/socket.h"
#include "net/slirp.h"
#include "net/vde.h"
#include "monitor.h"
@@ -716,454 +717,6 @@ qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
}
-/* network connection */
-typedef struct NetSocketState {
- VLANClientState *vc;
- int fd;
- int state; /* 0 = getting length, 1 = getting data */
- unsigned int index;
- unsigned int packet_len;
- uint8_t buf[4096];
- struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
-} NetSocketState;
-
-typedef struct NetSocketListenState {
- VLANState *vlan;
- char *model;
- char *name;
- int fd;
-} NetSocketListenState;
-
-/* XXX: we consider we can send the whole packet without blocking */
-static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
- NetSocketState *s = vc->opaque;
- uint32_t len;
- len = htonl(size);
-
- send_all(s->fd, (const uint8_t *)&len, sizeof(len));
- return send_all(s->fd, buf, size);
-}
-
-static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
- NetSocketState *s = vc->opaque;
-
- return sendto(s->fd, (const void *)buf, size, 0,
- (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
-}
-
-static void net_socket_send(void *opaque)
-{
- NetSocketState *s = opaque;
- int size, err;
- unsigned l;
- uint8_t buf1[4096];
- const uint8_t *buf;
-
- size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
- if (size < 0) {
- err = socket_error();
- if (err != EWOULDBLOCK)
- goto eoc;
- } else if (size == 0) {
- /* end of connection */
- eoc:
- qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
- closesocket(s->fd);
- 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) {
- qemu_send_packet(s->vc, s->buf, s->packet_len);
- s->index = 0;
- s->state = 0;
- }
- break;
- }
- }
-}
-
-static void net_socket_send_dgram(void *opaque)
-{
- NetSocketState *s = opaque;
- int size;
-
- size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
- if (size < 0)
- return;
- if (size == 0) {
- /* end of connection */
- qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
- return;
- }
- qemu_send_packet(s->vc, s->buf, size);
-}
-
-static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
-{
- struct ip_mreq imr;
- int fd;
- int val, ret;
- 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 = socket(PF_INET, SOCK_DGRAM, 0);
- if (fd < 0) {
- perror("socket(PF_INET, SOCK_DGRAM)");
- return -1;
- }
-
- val = 1;
- ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
- (const char *)&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;
- imr.imr_interface.s_addr = htonl(INADDR_ANY);
-
- ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
- (const char *)&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 */
- val = 1;
- ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
- (const char *)&val, sizeof(val));
- if (ret < 0) {
- perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
- goto fail;
- }
-
- socket_set_nonblock(fd);
- return fd;
-fail:
- if (fd >= 0)
- closesocket(fd);
- return -1;
-}
-
-static void net_socket_cleanup(VLANClientState *vc)
-{
- NetSocketState *s = vc->opaque;
- qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
- close(s->fd);
- qemu_free(s);
-}
-
-static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
- const char *model,
- const char *name,
- int fd, int is_connected)
-{
- struct sockaddr_in saddr;
- int newfd;
- socklen_t saddr_len;
- 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);
- return NULL;
- }
- /* clone dgram socket */
- newfd = net_socket_mcast_create(&saddr);
- if (newfd < 0) {
- /* error already reported by net_socket_mcast_create() */
- close(fd);
- return NULL;
- }
- /* 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));
- return NULL;
- }
- }
-
- s = qemu_mallocz(sizeof(NetSocketState));
- s->fd = fd;
-
- s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET,
- vlan, NULL, model, name, NULL,
- net_socket_receive_dgram, NULL, NULL,
- net_socket_cleanup, s);
- qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
-
- /* mcast: save bound address as dst */
- if (is_connected) s->dgram_dst=saddr;
-
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "socket: fd=%d (%s mcast=%s:%d)",
- fd, is_connected? "cloned" : "",
- inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
- return s;
-}
-
-static void net_socket_connect(void *opaque)
-{
- NetSocketState *s = opaque;
- qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
-}
-
-static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
- const char *model,
- const char *name,
- int fd, int is_connected)
-{
- NetSocketState *s;
- s = qemu_mallocz(sizeof(NetSocketState));
- s->fd = fd;
- s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET,
- vlan, NULL, model, name, NULL,
- net_socket_receive, NULL, NULL,
- net_socket_cleanup, s);
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "socket: fd=%d", 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(VLANState *vlan,
- 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);
- return NULL;
- }
- switch(so_type) {
- case SOCK_DGRAM:
- return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
- case SOCK_STREAM:
- return net_socket_fd_init_stream(vlan, 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(vlan, model, name, fd, is_connected);
- }
- return NULL;
-}
-
-static void net_socket_accept(void *opaque)
-{
- NetSocketListenState *s = opaque;
- NetSocketState *s1;
- struct sockaddr_in saddr;
- socklen_t len;
- int fd;
-
- for(;;) {
- len = sizeof(saddr);
- fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
- if (fd < 0 && errno != EINTR) {
- return;
- } else if (fd >= 0) {
- break;
- }
- }
- s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
- if (!s1) {
- closesocket(fd);
- } else {
- snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
- "socket: connection from %s:%d",
- inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
- }
-}
-
-static int net_socket_listen_init(VLANState *vlan,
- const char *model,
- const char *name,
- const char *host_str)
-{
- NetSocketListenState *s;
- int fd, val, ret;
- struct sockaddr_in saddr;
-
- if (parse_host_port(&saddr, host_str) < 0)
- return -1;
-
- s = qemu_mallocz(sizeof(NetSocketListenState));
-
- fd = socket(PF_INET, SOCK_STREAM, 0);
- if (fd < 0) {
- perror("socket");
- return -1;
- }
- socket_set_nonblock(fd);
-
- /* allow fast reuse */
- val = 1;
- setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
-
- ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
- if (ret < 0) {
- perror("bind");
- return -1;
- }
- ret = listen(fd, 0);
- if (ret < 0) {
- perror("listen");
- return -1;
- }
- s->vlan = vlan;
- s->model = qemu_strdup(model);
- s->name = name ? qemu_strdup(name) : NULL;
- s->fd = fd;
- qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
- return 0;
-}
-
-static int net_socket_connect_init(VLANState *vlan,
- 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 = socket(PF_INET, SOCK_STREAM, 0);
- if (fd < 0) {
- perror("socket");
- return -1;
- }
- socket_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) {
- break;
-#endif
- } else {
- perror("connect");
- closesocket(fd);
- return -1;
- }
- } else {
- connected = 1;
- break;
- }
- }
- s = net_socket_fd_init(vlan, model, name, fd, connected);
- if (!s)
- return -1;
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "socket: connect to %s:%d",
- inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
- return 0;
-}
-
-static int net_socket_mcast_init(VLANState *vlan,
- const char *model,
- const char *name,
- const char *host_str)
-{
- NetSocketState *s;
- int fd;
- struct sockaddr_in saddr;
-
- if (parse_host_port(&saddr, host_str) < 0)
- return -1;
-
-
- fd = net_socket_mcast_create(&saddr);
- if (fd < 0)
- return -1;
-
- s = net_socket_fd_init(vlan, model, name, fd, 0);
- if (!s)
- return -1;
-
- s->dgram_dst = saddr;
-
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "socket: mcast=%s:%d",
- inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
- return 0;
-
-}
-
typedef struct DumpState {
VLANClientState *pcap_vc;
int fd;
@@ -1447,87 +1000,6 @@ static int net_init_nic(QemuOpts *opts,
return idx;
}
-static int net_init_socket(QemuOpts *opts,
- Monitor *mon,
- const char *name,
- VLANState *vlan)
-{
- if (qemu_opt_get(opts, "fd")) {
- int fd;
-
- if (qemu_opt_get(opts, "listen") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "mcast")) {
- qemu_error("listen=, connect= and mcast= is invalid with fd=\n");
- return -1;
- }
-
- fd = net_handle_fd_param(mon, qemu_opt_get(opts, "fd"));
- if (fd == -1) {
- return -1;
- }
-
- if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) {
- close(fd);
- return -1;
- }
- } else if (qemu_opt_get(opts, "listen")) {
- const char *listen;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "mcast")) {
- qemu_error("fd=, connect= and mcast= is invalid with listen=\n");
- return -1;
- }
-
- listen = qemu_opt_get(opts, "listen");
-
- if (net_socket_listen_init(vlan, "socket", name, listen) == -1) {
- return -1;
- }
- } else if (qemu_opt_get(opts, "connect")) {
- const char *connect;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "listen") ||
- qemu_opt_get(opts, "mcast")) {
- qemu_error("fd=, listen= and mcast= is invalid with connect=\n");
- return -1;
- }
-
- connect = qemu_opt_get(opts, "connect");
-
- if (net_socket_connect_init(vlan, "socket", name, connect) == -1) {
- return -1;
- }
- } else if (qemu_opt_get(opts, "mcast")) {
- const char *mcast;
-
- if (qemu_opt_get(opts, "fd") ||
- qemu_opt_get(opts, "connect") ||
- qemu_opt_get(opts, "listen")) {
- qemu_error("fd=, connect= and listen= is invalid with mcast=\n");
- return -1;
- }
-
- mcast = qemu_opt_get(opts, "mcast");
-
- if (net_socket_mcast_init(vlan, "socket", name, mcast) == -1) {
- return -1;
- }
- } else {
- qemu_error("-socket requires fd=, listen=, connect= or mcast=\n");
- return -1;
- }
-
- if (vlan) {
- vlan->nb_host_devs++;
- }
-
- return 0;
-}
-
static int net_init_dump(QemuOpts *opts,
Monitor *mon,
const char *name,
diff --git a/net/socket.c b/net/socket.c
new file mode 100644
index 0000000000..551fc2b9e8
--- /dev/null
+++ b/net/socket.c
@@ -0,0 +1,561 @@
+/*
+ * 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 "net/socket.h"
+
+#include "config-host.h"
+
+#include "net.h"
+#include "qemu-char.h"
+#include "qemu-common.h"
+#include "qemu-option.h"
+#include "qemu_socket.h"
+#include "sysemu.h"
+
+typedef struct NetSocketState {
+ VLANClientState *vc;
+ int fd;
+ int state; /* 0 = getting length, 1 = getting data */
+ unsigned int index;
+ unsigned int packet_len;
+ uint8_t buf[4096];
+ struct sockaddr_in dgram_dst; /* contains inet host and port destination iff connectionless (SOCK_DGRAM) */
+} NetSocketState;
+
+typedef struct NetSocketListenState {
+ VLANState *vlan;
+ char *model;
+ char *name;
+ int fd;
+} NetSocketListenState;
+
+/* XXX: we consider we can send the whole packet without blocking */
+static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
+{
+ NetSocketState *s = vc->opaque;
+ uint32_t len;
+ len = htonl(size);
+
+ send_all(s->fd, (const uint8_t *)&len, sizeof(len));
+ return send_all(s->fd, buf, size);
+}
+
+static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
+{
+ NetSocketState *s = vc->opaque;
+
+ return sendto(s->fd, (const void *)buf, size, 0,
+ (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
+}
+
+static void net_socket_send(void *opaque)
+{
+ NetSocketState *s = opaque;
+ int size, err;
+ unsigned l;
+ uint8_t buf1[4096];
+ const uint8_t *buf;
+
+ size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
+ if (size < 0) {
+ err = socket_error();
+ if (err != EWOULDBLOCK)
+ goto eoc;
+ } else if (size == 0) {
+ /* end of connection */
+ eoc:
+ qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
+ closesocket(s->fd);
+ 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) {
+ qemu_send_packet(s->vc, s->buf, s->packet_len);
+ s->index = 0;
+ s->state = 0;
+ }
+ break;
+ }
+ }
+}
+
+static void net_socket_send_dgram(void *opaque)
+{
+ NetSocketState *s = opaque;
+ int size;
+
+ size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
+ if (size < 0)
+ return;
+ if (size == 0) {
+ /* end of connection */
+ qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
+ return;
+ }
+ qemu_send_packet(s->vc, s->buf, size);
+}
+
+static int net_socket_mcast_create(struct sockaddr_in *mcastaddr)
+{
+ struct ip_mreq imr;
+ int fd;
+ int val, ret;
+ 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 = socket(PF_INET, SOCK_DGRAM, 0);
+ if (fd < 0) {
+ perror("socket(PF_INET, SOCK_DGRAM)");
+ return -1;
+ }
+
+ val = 1;
+ ret=setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
+ (const char *)&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;
+ imr.imr_interface.s_addr = htonl(INADDR_ANY);
+
+ ret = setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+ (const char *)&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 */
+ val = 1;
+ ret=setsockopt(fd, IPPROTO_IP, IP_MULTICAST_LOOP,
+ (const char *)&val, sizeof(val));
+ if (ret < 0) {
+ perror("setsockopt(SOL_IP, IP_MULTICAST_LOOP)");
+ goto fail;
+ }
+
+ socket_set_nonblock(fd);
+ return fd;
+fail:
+ if (fd >= 0)
+ closesocket(fd);
+ return -1;
+}
+
+static void net_socket_cleanup(VLANClientState *vc)
+{
+ NetSocketState *s = vc->opaque;
+ qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
+ close(s->fd);
+ qemu_free(s);
+}
+
+static NetSocketState *net_socket_fd_init_dgram(VLANState *vlan,
+ const char *model,
+ const char *name,
+ int fd, int is_connected)
+{
+ struct sockaddr_in saddr;
+ int newfd;
+ socklen_t saddr_len;
+ 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);
+ return NULL;
+ }
+ /* clone dgram socket */
+ newfd = net_socket_mcast_create(&saddr);
+ if (newfd < 0) {
+ /* error already reported by net_socket_mcast_create() */
+ close(fd);
+ return NULL;
+ }
+ /* 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));
+ return NULL;
+ }
+ }
+
+ s = qemu_mallocz(sizeof(NetSocketState));
+ s->fd = fd;
+
+ s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET,
+ vlan, NULL, model, name, NULL,
+ net_socket_receive_dgram, NULL, NULL,
+ net_socket_cleanup, s);
+ qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
+
+ /* mcast: save bound address as dst */
+ if (is_connected) s->dgram_dst=saddr;
+
+ snprintf(s->vc->info_str, sizeof(s->vc->info_str),
+ "socket: fd=%d (%s mcast=%s:%d)",
+ fd, is_connected? "cloned" : "",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ return s;
+}
+
+static void net_socket_connect(void *opaque)
+{
+ NetSocketState *s = opaque;
+ qemu_set_fd_handler(s->fd, net_socket_send, NULL, s);
+}
+
+static NetSocketState *net_socket_fd_init_stream(VLANState *vlan,
+ const char *model,
+ const char *name,
+ int fd, int is_connected)
+{
+ NetSocketState *s;
+ s = qemu_mallocz(sizeof(NetSocketState));
+ s->fd = fd;
+ s->vc = qemu_new_vlan_client(NET_CLIENT_TYPE_SOCKET,
+ vlan, NULL, model, name, NULL,
+ net_socket_receive, NULL, NULL,
+ net_socket_cleanup, s);
+ snprintf(s->vc->info_str, sizeof(s->vc->info_str),
+ "socket: fd=%d", 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(VLANState *vlan,
+ 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);
+ return NULL;
+ }
+ switch(so_type) {
+ case SOCK_DGRAM:
+ return net_socket_fd_init_dgram(vlan, model, name, fd, is_connected);
+ case SOCK_STREAM:
+ return net_socket_fd_init_stream(vlan, 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(vlan, model, name, fd, is_connected);
+ }
+ return NULL;
+}
+
+static void net_socket_accept(void *opaque)
+{
+ NetSocketListenState *s = opaque;
+ NetSocketState *s1;
+ struct sockaddr_in saddr;
+ socklen_t len;
+ int fd;
+
+ for(;;) {
+ len = sizeof(saddr);
+ fd = accept(s->fd, (struct sockaddr *)&saddr, &len);
+ if (fd < 0 && errno != EINTR) {
+ return;
+ } else if (fd >= 0) {
+ break;
+ }
+ }
+ s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
+ if (!s1) {
+ closesocket(fd);
+ } else {
+ snprintf(s1->vc->info_str, sizeof(s1->vc->info_str),
+ "socket: connection from %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ }
+}
+
+static int net_socket_listen_init(VLANState *vlan,
+ const char *model,
+ const char *name,
+ const char *host_str)
+{
+ NetSocketListenState *s;
+ int fd, val, ret;
+ struct sockaddr_in saddr;
+
+ if (parse_host_port(&saddr, host_str) < 0)
+ return -1;
+
+ s = qemu_mallocz(sizeof(NetSocketListenState));
+
+ fd = socket(PF_INET, SOCK_STREAM, 0);
+ if (fd < 0) {
+ perror("socket");
+ return -1;
+ }
+ socket_set_nonblock(fd);
+
+ /* allow fast reuse */
+ val = 1;
+ setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (const char *)&val, sizeof(val));
+
+ ret = bind(fd, (struct sockaddr *)&saddr, sizeof(saddr));
+ if (ret < 0) {
+ perror("bind");
+ return -1;
+ }
+ ret = listen(fd, 0);
+ if (ret < 0) {
+ perror("listen");
+ return -1;
+ }
+ s->vlan = vlan;
+ s->model = qemu_strdup(model);
+ s->name = name ? qemu_strdup(name) : NULL;
+ s->fd = fd;
+ qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
+ return 0;
+}
+
+static int net_socket_connect_init(VLANState *vlan,
+ 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 = socket(PF_INET, SOCK_STREAM, 0);
+ if (fd < 0) {
+ perror("socket");
+ return -1;
+ }
+ socket_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) {
+ break;
+#endif
+ } else {
+ perror("connect");
+ closesocket(fd);
+ return -1;
+ }
+ } else {
+ connected = 1;
+ break;
+ }
+ }
+ s = net_socket_fd_init(vlan, model, name, fd, connected);
+ if (!s)
+ return -1;
+ snprintf(s->vc->info_str, sizeof(s->vc->info_str),
+ "socket: connect to %s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ return 0;
+}
+
+static int net_socket_mcast_init(VLANState *vlan,
+ const char *model,
+ const char *name,
+ const char *host_str)
+{
+ NetSocketState *s;
+ int fd;
+ struct sockaddr_in saddr;
+
+ if (parse_host_port(&saddr, host_str) < 0)
+ return -1;
+
+
+ fd = net_socket_mcast_create(&saddr);
+ if (fd < 0)
+ return -1;
+
+ s = net_socket_fd_init(vlan, model, name, fd, 0);
+ if (!s)
+ return -1;
+
+ s->dgram_dst = saddr;
+
+ snprintf(s->vc->info_str, sizeof(s->vc->info_str),
+ "socket: mcast=%s:%d",
+ inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
+ return 0;
+
+}
+
+int net_init_socket(QemuOpts *opts,
+ Monitor *mon,
+ const char *name,
+ VLANState *vlan)
+{
+ if (qemu_opt_get(opts, "fd")) {
+ int fd;
+
+ if (qemu_opt_get(opts, "listen") ||
+ qemu_opt_get(opts, "connect") ||
+ qemu_opt_get(opts, "mcast")) {
+ qemu_error("listen=, connect= and mcast= is invalid with fd=\n");
+ return -1;
+ }
+
+ fd = net_handle_fd_param(mon, qemu_opt_get(opts, "fd"));
+ if (fd == -1) {
+ return -1;
+ }
+
+ if (!net_socket_fd_init(vlan, "socket", name, fd, 1)) {
+ close(fd);
+ return -1;
+ }
+ } else if (qemu_opt_get(opts, "listen")) {
+ const char *listen;
+
+ if (qemu_opt_get(opts, "fd") ||
+ qemu_opt_get(opts, "connect") ||
+ qemu_opt_get(opts, "mcast")) {
+ qemu_error("fd=, connect= and mcast= is invalid with listen=\n");
+ return -1;
+ }
+
+ listen = qemu_opt_get(opts, "listen");
+
+ if (net_socket_listen_init(vlan, "socket", name, listen) == -1) {
+ return -1;
+ }
+ } else if (qemu_opt_get(opts, "connect")) {
+ const char *connect;
+
+ if (qemu_opt_get(opts, "fd") ||
+ qemu_opt_get(opts, "listen") ||
+ qemu_opt_get(opts, "mcast")) {
+ qemu_error("fd=, listen= and mcast= is invalid with connect=\n");
+ return -1;
+ }
+
+ connect = qemu_opt_get(opts, "connect");
+
+ if (net_socket_connect_init(vlan, "socket", name, connect) == -1) {
+ return -1;
+ }
+ } else if (qemu_opt_get(opts, "mcast")) {
+ const char *mcast;
+
+ if (qemu_opt_get(opts, "fd") ||
+ qemu_opt_get(opts, "connect") ||
+ qemu_opt_get(opts, "listen")) {
+ qemu_error("fd=, connect= and listen= is invalid with mcast=\n");
+ return -1;
+ }
+
+ mcast = qemu_opt_get(opts, "mcast");
+
+ if (net_socket_mcast_init(vlan, "socket", name, mcast) == -1) {
+ return -1;
+ }
+ } else {
+ qemu_error("-socket requires fd=, listen=, connect= or mcast=\n");
+ return -1;
+ }
+
+ if (vlan) {
+ vlan->nb_host_devs++;
+ }
+
+ return 0;
+}
diff --git a/net/socket.h b/net/socket.h
new file mode 100644
index 0000000000..ea46f02dd8
--- /dev/null
+++ b/net/socket.h
@@ -0,0 +1,33 @@
+/*
+ * 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.
+ */
+#ifndef QEMU_NET_SOCKET_H
+#define QEMU_NET_SOCKET_H
+
+#include "net.h"
+#include "qemu-common.h"
+
+int net_init_socket(QemuOpts *opts, Monitor *mon,
+ const char *name, VLANState *vlan);
+
+#endif /* QEMU_NET_SOCKET_H */