4 * Copyright (c) 2003-2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
26 #include "config-host.h"
29 #include "net/socket.h"
31 #include "net/slirp.h"
36 #include "qemu-common.h"
37 #include "qemu_socket.h"
40 static QTAILQ_HEAD(, VLANState) vlans;
41 static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
45 /***********************************************************/
46 /* network device redirectors */
48 #if defined(DEBUG_NET)
49 static void hex_dump(FILE *f, const uint8_t *buf, int size)
53 for(i=0;i<size;i+=16) {
57 fprintf(f, "%08x ", i);
60 fprintf(f, " %02x", buf[i+j]);
67 if (c < ' ' || c > '~')
76 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
87 if (len > buf_size - 1)
96 int parse_host_src_port(struct sockaddr_in *haddr,
97 struct sockaddr_in *saddr,
98 const char *input_str)
100 char *str = qemu_strdup(input_str);
101 char *host_str = str;
103 const char *src_str2;
107 * Chop off any extra arguments at the end of the string which
108 * would start with a comma, then fill in the src port information
109 * if it was provided else use the "any address" and "any port".
111 if ((ptr = strchr(str,',')))
114 if ((src_str = strchr(input_str,'@'))) {
119 if (parse_host_port(haddr, host_str) < 0)
123 if (!src_str || *src_str == '\0')
126 if (parse_host_port(saddr, src_str2) < 0)
137 int parse_host_port(struct sockaddr_in *saddr, const char *str)
145 if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
147 saddr->sin_family = AF_INET;
148 if (buf[0] == '\0') {
149 saddr->sin_addr.s_addr = 0;
151 if (qemu_isdigit(buf[0])) {
152 if (!inet_aton(buf, &saddr->sin_addr))
155 if ((he = gethostbyname(buf)) == NULL)
157 saddr->sin_addr = *(struct in_addr *)he->h_addr;
160 port = strtol(p, (char **)&r, 0);
163 saddr->sin_port = htons(port);
167 void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
169 snprintf(vc->info_str, sizeof(vc->info_str),
170 "model=%s,macaddr=%02x:%02x:%02x:%02x:%02x:%02x",
172 macaddr[0], macaddr[1], macaddr[2],
173 macaddr[3], macaddr[4], macaddr[5]);
176 void qemu_macaddr_default_if_unset(MACAddr *macaddr)
178 static int index = 0;
179 static const MACAddr zero = { .a = { 0,0,0,0,0,0 } };
181 if (memcmp(macaddr, &zero, sizeof(zero)) != 0)
183 macaddr->a[0] = 0x52;
184 macaddr->a[1] = 0x54;
185 macaddr->a[2] = 0x00;
186 macaddr->a[3] = 0x12;
187 macaddr->a[4] = 0x34;
188 macaddr->a[5] = 0x56 + index++;
191 static char *assign_name(VLANClientState *vc1, const char *model)
197 QTAILQ_FOREACH(vlan, &vlans, next) {
200 QTAILQ_FOREACH(vc, &vlan->clients, next) {
201 if (vc != vc1 && strcmp(vc->model, model) == 0) {
207 snprintf(buf, sizeof(buf), "%s.%d", model, id);
209 return qemu_strdup(buf);
212 static ssize_t qemu_deliver_packet(VLANClientState *sender,
217 static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
219 const struct iovec *iov,
223 VLANClientState *qemu_new_net_client(NetClientInfo *info,
225 VLANClientState *peer,
231 assert(info->size >= sizeof(VLANClientState));
233 vc = qemu_mallocz(info->size);
236 vc->model = qemu_strdup(model);
238 vc->name = qemu_strdup(name);
240 vc->name = assign_name(vc, model);
246 QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next);
253 QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next);
255 vc->send_queue = qemu_new_net_queue(qemu_deliver_packet,
256 qemu_deliver_packet_iov,
263 NICState *qemu_new_nic(NetClientInfo *info,
272 assert(info->type == NET_CLIENT_TYPE_NIC);
273 assert(info->size >= sizeof(NICState));
275 nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name);
277 nic = DO_UPCAST(NICState, nc, nc);
279 nic->opaque = opaque;
284 static void qemu_cleanup_vlan_client(VLANClientState *vc)
287 QTAILQ_REMOVE(&vc->vlan->clients, vc, next);
289 QTAILQ_REMOVE(&non_vlan_clients, vc, next);
292 if (vc->info->cleanup) {
293 vc->info->cleanup(vc);
297 static void qemu_free_vlan_client(VLANClientState *vc)
300 if (vc->send_queue) {
301 qemu_del_net_queue(vc->send_queue);
304 vc->peer->peer = NULL;
308 qemu_free(vc->model);
312 void qemu_del_vlan_client(VLANClientState *vc)
314 /* If there is a peer NIC, delete and cleanup client, but do not free. */
315 if (!vc->vlan && vc->peer && vc->peer->info->type == NET_CLIENT_TYPE_NIC) {
316 NICState *nic = DO_UPCAST(NICState, nc, vc->peer);
317 if (nic->peer_deleted) {
320 nic->peer_deleted = true;
321 /* Let NIC know peer is gone. */
322 vc->peer->link_down = true;
323 if (vc->peer->info->link_status_changed) {
324 vc->peer->info->link_status_changed(vc->peer);
326 qemu_cleanup_vlan_client(vc);
330 /* If this is a peer NIC and peer has already been deleted, free it now. */
331 if (!vc->vlan && vc->peer && vc->info->type == NET_CLIENT_TYPE_NIC) {
332 NICState *nic = DO_UPCAST(NICState, nc, vc);
333 if (nic->peer_deleted) {
334 qemu_free_vlan_client(vc->peer);
338 qemu_cleanup_vlan_client(vc);
339 qemu_free_vlan_client(vc);
343 qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
344 const char *client_str)
349 vlan = qemu_find_vlan(vlan_id, 0);
351 monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
355 QTAILQ_FOREACH(vc, &vlan->clients, next) {
356 if (!strcmp(vc->name, client_str)) {
361 monitor_printf(mon, "can't find device %s on VLAN %d\n",
362 client_str, vlan_id);
368 void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
373 QTAILQ_FOREACH(nc, &non_vlan_clients, next) {
374 if (nc->info->type == NET_CLIENT_TYPE_NIC) {
375 func(DO_UPCAST(NICState, nc, nc), opaque);
379 QTAILQ_FOREACH(vlan, &vlans, next) {
380 QTAILQ_FOREACH(nc, &vlan->clients, next) {
381 if (nc->info->type == NET_CLIENT_TYPE_NIC) {
382 func(DO_UPCAST(NICState, nc, nc), opaque);
388 int qemu_can_send_packet(VLANClientState *sender)
390 VLANState *vlan = sender->vlan;
394 if (sender->peer->receive_disabled) {
396 } else if (sender->peer->info->can_receive &&
397 !sender->peer->info->can_receive(sender->peer)) {
408 QTAILQ_FOREACH(vc, &vlan->clients, next) {
413 /* no can_receive() handler, they can always receive */
414 if (!vc->info->can_receive || vc->info->can_receive(vc)) {
421 static ssize_t qemu_deliver_packet(VLANClientState *sender,
427 VLANClientState *vc = opaque;
434 if (vc->receive_disabled) {
438 if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
439 ret = vc->info->receive_raw(vc, data, size);
441 ret = vc->info->receive(vc, data, size);
445 vc->receive_disabled = 1;
451 static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
457 VLANState *vlan = opaque;
461 QTAILQ_FOREACH(vc, &vlan->clients, next) {
473 if (vc->receive_disabled) {
478 if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
479 len = vc->info->receive_raw(vc, buf, size);
481 len = vc->info->receive(vc, buf, size);
485 vc->receive_disabled = 1;
488 ret = (ret >= 0) ? ret : len;
495 void qemu_purge_queued_packets(VLANClientState *vc)
499 if (!vc->peer && !vc->vlan) {
504 queue = vc->peer->send_queue;
506 queue = vc->vlan->send_queue;
509 qemu_net_queue_purge(queue, vc);
512 void qemu_flush_queued_packets(VLANClientState *vc)
516 vc->receive_disabled = 0;
519 queue = vc->vlan->send_queue;
521 queue = vc->send_queue;
524 qemu_net_queue_flush(queue);
527 static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
529 const uint8_t *buf, int size,
530 NetPacketSent *sent_cb)
535 printf("qemu_send_packet_async:\n");
536 hex_dump(stdout, buf, size);
539 if (sender->link_down || (!sender->peer && !sender->vlan)) {
544 queue = sender->peer->send_queue;
546 queue = sender->vlan->send_queue;
549 return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
552 ssize_t qemu_send_packet_async(VLANClientState *sender,
553 const uint8_t *buf, int size,
554 NetPacketSent *sent_cb)
556 return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
560 void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
562 qemu_send_packet_async(vc, buf, size, NULL);
565 ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size)
567 return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
571 static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
574 uint8_t buffer[4096];
578 for (i = 0; i < iovcnt; i++) {
581 len = MIN(sizeof(buffer) - offset, iov[i].iov_len);
582 memcpy(buffer + offset, iov[i].iov_base, len);
586 return vc->info->receive(vc, buffer, offset);
589 static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
594 for (i = 0; i < iovcnt; i++)
595 offset += iov[i].iov_len;
599 static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
601 const struct iovec *iov,
605 VLANClientState *vc = opaque;
608 return calc_iov_length(iov, iovcnt);
611 if (vc->info->receive_iov) {
612 return vc->info->receive_iov(vc, iov, iovcnt);
614 return vc_sendv_compat(vc, iov, iovcnt);
618 static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
620 const struct iovec *iov,
624 VLANState *vlan = opaque;
628 QTAILQ_FOREACH(vc, &vlan->clients, next) {
636 ret = calc_iov_length(iov, iovcnt);
640 assert(!(flags & QEMU_NET_PACKET_FLAG_RAW));
642 if (vc->info->receive_iov) {
643 len = vc->info->receive_iov(vc, iov, iovcnt);
645 len = vc_sendv_compat(vc, iov, iovcnt);
648 ret = (ret >= 0) ? ret : len;
654 ssize_t qemu_sendv_packet_async(VLANClientState *sender,
655 const struct iovec *iov, int iovcnt,
656 NetPacketSent *sent_cb)
660 if (sender->link_down || (!sender->peer && !sender->vlan)) {
661 return calc_iov_length(iov, iovcnt);
665 queue = sender->peer->send_queue;
667 queue = sender->vlan->send_queue;
670 return qemu_net_queue_send_iov(queue, sender,
671 QEMU_NET_PACKET_FLAG_NONE,
672 iov, iovcnt, sent_cb);
676 qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
678 return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
681 /* find or alloc a new VLAN */
682 VLANState *qemu_find_vlan(int id, int allocate)
686 QTAILQ_FOREACH(vlan, &vlans, next) {
687 if (vlan->id == id) {
696 vlan = qemu_mallocz(sizeof(VLANState));
698 QTAILQ_INIT(&vlan->clients);
700 vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet,
701 qemu_vlan_deliver_packet_iov,
704 QTAILQ_INSERT_TAIL(&vlans, vlan, next);
709 VLANClientState *qemu_find_netdev(const char *id)
713 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
714 if (!strcmp(vc->name, id)) {
722 static int nic_get_free_idx(void)
726 for (index = 0; index < MAX_NICS; index++)
727 if (!nd_table[index].used)
732 int qemu_show_nic_models(const char *arg, const char *const *models)
736 if (!arg || strcmp(arg, "?"))
739 fprintf(stderr, "qemu: Supported NIC models: ");
740 for (i = 0 ; models[i]; i++)
741 fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
745 void qemu_check_nic_model(NICInfo *nd, const char *model)
747 const char *models[2];
752 if (qemu_show_nic_models(nd->model, models))
754 if (qemu_find_nic_model(nd, models, model) < 0)
758 int qemu_find_nic_model(NICInfo *nd, const char * const *models,
759 const char *default_model)
764 nd->model = qemu_strdup(default_model);
766 for (i = 0 ; models[i]; i++) {
767 if (strcmp(nd->model, models[i]) == 0)
771 error_report("qemu: Unsupported NIC model: %s", nd->model);
775 int net_handle_fd_param(Monitor *mon, const char *param)
777 if (!qemu_isdigit(param[0])) {
780 fd = monitor_get_fd(mon, param);
782 error_report("No file descriptor named %s found", param);
788 return strtol(param, NULL, 0);
792 static int net_init_nic(QemuOpts *opts,
801 idx = nic_get_free_idx();
802 if (idx == -1 || nb_nics >= MAX_NICS) {
803 error_report("Too Many NICs");
809 memset(nd, 0, sizeof(*nd));
811 if ((netdev = qemu_opt_get(opts, "netdev"))) {
812 nd->netdev = qemu_find_netdev(netdev);
814 error_report("netdev '%s' not found", netdev);
822 nd->name = qemu_strdup(name);
824 if (qemu_opt_get(opts, "model")) {
825 nd->model = qemu_strdup(qemu_opt_get(opts, "model"));
827 if (qemu_opt_get(opts, "addr")) {
828 nd->devaddr = qemu_strdup(qemu_opt_get(opts, "addr"));
831 nd->macaddr[0] = 0x52;
832 nd->macaddr[1] = 0x54;
833 nd->macaddr[2] = 0x00;
834 nd->macaddr[3] = 0x12;
835 nd->macaddr[4] = 0x34;
836 nd->macaddr[5] = 0x56 + idx;
838 if (qemu_opt_get(opts, "macaddr") &&
839 net_parse_macaddr(nd->macaddr, qemu_opt_get(opts, "macaddr")) < 0) {
840 error_report("invalid syntax for ethernet address");
844 nd->nvectors = qemu_opt_get_number(opts, "vectors",
845 DEV_NVECTORS_UNSPECIFIED);
846 if (nd->nvectors != DEV_NVECTORS_UNSPECIFIED &&
847 (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) {
848 error_report("invalid # of vectors: %d", nd->nvectors);
858 #define NET_COMMON_PARAMS_DESC \
861 .type = QEMU_OPT_STRING, \
862 .help = "net client type (nic, tap etc.)", \
865 .type = QEMU_OPT_NUMBER, \
866 .help = "vlan number", \
869 .type = QEMU_OPT_STRING, \
870 .help = "identifier for monitor commands", \
873 typedef int (*net_client_init_func)(QemuOpts *opts,
878 /* magic number, but compiler will warn if too small */
879 #define NET_MAX_DESC 20
881 static const struct {
883 net_client_init_func init;
884 QemuOptDesc desc[NET_MAX_DESC];
885 } net_client_types[] = {
889 NET_COMMON_PARAMS_DESC,
890 { /* end of list */ }
894 .init = net_init_nic,
896 NET_COMMON_PARAMS_DESC,
899 .type = QEMU_OPT_STRING,
900 .help = "id of -netdev to connect to",
904 .type = QEMU_OPT_STRING,
905 .help = "MAC address",
908 .type = QEMU_OPT_STRING,
909 .help = "device model (e1000, rtl8139, virtio etc.)",
912 .type = QEMU_OPT_STRING,
913 .help = "PCI device address",
916 .type = QEMU_OPT_NUMBER,
917 .help = "number of MSI-x vectors, 0 to disable MSI-X",
919 { /* end of list */ }
924 .init = net_init_slirp,
926 NET_COMMON_PARAMS_DESC,
929 .type = QEMU_OPT_STRING,
930 .help = "client hostname reported by the builtin DHCP server",
933 .type = QEMU_OPT_STRING,
934 .help = "isolate the guest from the host (y|yes|n|no)",
937 .type = QEMU_OPT_STRING,
938 .help = "legacy parameter, use net= instead",
941 .type = QEMU_OPT_STRING,
942 .help = "IP address and optional netmask",
945 .type = QEMU_OPT_STRING,
946 .help = "guest-visible address of the host",
949 .type = QEMU_OPT_STRING,
950 .help = "root directory of the built-in TFTP server",
953 .type = QEMU_OPT_STRING,
954 .help = "BOOTP filename, for use with tftp=",
957 .type = QEMU_OPT_STRING,
958 .help = "the first of the 16 IPs the built-in DHCP server can assign",
961 .type = QEMU_OPT_STRING,
962 .help = "guest-visible address of the virtual nameserver",
965 .type = QEMU_OPT_STRING,
966 .help = "root directory of the built-in SMB server",
969 .type = QEMU_OPT_STRING,
970 .help = "IP address of the built-in SMB server",
973 .type = QEMU_OPT_STRING,
974 .help = "guest port number to forward incoming TCP or UDP connections",
977 .type = QEMU_OPT_STRING,
978 .help = "IP address and port to forward guest TCP connections",
980 { /* end of list */ }
985 .init = net_init_tap,
987 NET_COMMON_PARAMS_DESC,
990 .type = QEMU_OPT_STRING,
991 .help = "interface name",
996 .type = QEMU_OPT_STRING,
997 .help = "file descriptor of an already opened tap",
1000 .type = QEMU_OPT_STRING,
1001 .help = "script to initialize the interface",
1003 .name = "downscript",
1004 .type = QEMU_OPT_STRING,
1005 .help = "script to shut down the interface",
1008 .type = QEMU_OPT_SIZE,
1009 .help = "send buffer limit"
1012 .type = QEMU_OPT_BOOL,
1013 .help = "enable the IFF_VNET_HDR flag on the tap interface"
1016 .type = QEMU_OPT_BOOL,
1017 .help = "enable vhost-net network accelerator",
1020 .type = QEMU_OPT_STRING,
1021 .help = "file descriptor of an already opened vhost net device",
1024 { /* end of list */ }
1028 .init = net_init_socket,
1030 NET_COMMON_PARAMS_DESC,
1033 .type = QEMU_OPT_STRING,
1034 .help = "file descriptor of an already opened socket",
1037 .type = QEMU_OPT_STRING,
1038 .help = "port number, and optional hostname, to listen on",
1041 .type = QEMU_OPT_STRING,
1042 .help = "port number, and optional hostname, to connect to",
1045 .type = QEMU_OPT_STRING,
1046 .help = "UDP multicast address and port number",
1048 { /* end of list */ }
1053 .init = net_init_vde,
1055 NET_COMMON_PARAMS_DESC,
1058 .type = QEMU_OPT_STRING,
1059 .help = "socket path",
1062 .type = QEMU_OPT_NUMBER,
1063 .help = "port number",
1066 .type = QEMU_OPT_STRING,
1067 .help = "group owner of socket",
1070 .type = QEMU_OPT_NUMBER,
1071 .help = "permissions for socket",
1073 { /* end of list */ }
1078 .init = net_init_dump,
1080 NET_COMMON_PARAMS_DESC,
1083 .type = QEMU_OPT_SIZE,
1084 .help = "per-packet size limit (64k default)",
1087 .type = QEMU_OPT_STRING,
1088 .help = "dump file path (default is qemu-vlan0.pcap)",
1090 { /* end of list */ }
1093 { /* end of list */ }
1096 int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev)
1102 type = qemu_opt_get(opts, "type");
1104 qerror_report(QERR_MISSING_PARAMETER, "type");
1109 if (strcmp(type, "tap") != 0 &&
1111 strcmp(type, "user") != 0 &&
1114 strcmp(type, "vde") != 0 &&
1116 strcmp(type, "socket") != 0) {
1117 qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
1118 "a netdev backend type");
1122 if (qemu_opt_get(opts, "vlan")) {
1123 qerror_report(QERR_INVALID_PARAMETER, "vlan");
1126 if (qemu_opt_get(opts, "name")) {
1127 qerror_report(QERR_INVALID_PARAMETER, "name");
1130 if (!qemu_opts_id(opts)) {
1131 qerror_report(QERR_MISSING_PARAMETER, "id");
1136 name = qemu_opts_id(opts);
1138 name = qemu_opt_get(opts, "name");
1141 for (i = 0; net_client_types[i].type != NULL; i++) {
1142 if (!strcmp(net_client_types[i].type, type)) {
1143 VLANState *vlan = NULL;
1146 if (qemu_opts_validate(opts, &net_client_types[i].desc[0]) == -1) {
1150 /* Do not add to a vlan if it's a -netdev or a nic with a
1151 * netdev= parameter. */
1153 (strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) {
1154 vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1);
1158 if (net_client_types[i].init) {
1159 ret = net_client_types[i].init(opts, mon, name, vlan);
1161 /* TODO push error reporting into init() methods */
1162 qerror_report(QERR_DEVICE_INIT_FAILED, type);
1170 qerror_report(QERR_INVALID_PARAMETER_VALUE, "type",
1171 "a network client type");
1175 static int net_host_check_device(const char *device)
1178 const char *valid_param_list[] = { "tap", "socket", "dump"
1186 for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
1187 if (!strncmp(valid_param_list[i], device,
1188 strlen(valid_param_list[i])))
1195 void net_host_device_add(Monitor *mon, const QDict *qdict)
1197 const char *device = qdict_get_str(qdict, "device");
1198 const char *opts_str = qdict_get_try_str(qdict, "opts");
1201 if (!net_host_check_device(device)) {
1202 monitor_printf(mon, "invalid host network device %s\n", device);
1206 opts = qemu_opts_parse(qemu_find_opts("net"), opts_str ? opts_str : "", 0);
1211 qemu_opt_set(opts, "type", device);
1213 if (net_client_init(mon, opts, 0) < 0) {
1214 monitor_printf(mon, "adding host network device %s failed\n", device);
1218 void net_host_device_remove(Monitor *mon, const QDict *qdict)
1220 VLANClientState *vc;
1221 int vlan_id = qdict_get_int(qdict, "vlan_id");
1222 const char *device = qdict_get_str(qdict, "device");
1224 vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
1228 if (!net_host_check_device(vc->model)) {
1229 monitor_printf(mon, "invalid host network device %s\n", device);
1232 qemu_del_vlan_client(vc);
1235 int do_netdev_add(Monitor *mon, const QDict *qdict, QObject **ret_data)
1240 opts = qemu_opts_from_qdict(qemu_find_opts("netdev"), qdict);
1245 res = net_client_init(mon, opts, 1);
1247 qemu_opts_del(opts);
1253 int do_netdev_del(Monitor *mon, const QDict *qdict, QObject **ret_data)
1255 const char *id = qdict_get_str(qdict, "id");
1256 VLANClientState *vc;
1258 vc = qemu_find_netdev(id);
1259 if (!vc || vc->info->type == NET_CLIENT_TYPE_NIC) {
1260 qerror_report(QERR_DEVICE_NOT_FOUND, id);
1263 qemu_del_vlan_client(vc);
1264 qemu_opts_del(qemu_opts_find(qemu_find_opts("netdev"), id));
1268 void do_info_network(Monitor *mon)
1271 VLANClientState *vc;
1273 QTAILQ_FOREACH(vlan, &vlans, next) {
1274 monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
1276 QTAILQ_FOREACH(vc, &vlan->clients, next) {
1277 monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
1280 monitor_printf(mon, "Devices not on any VLAN:\n");
1281 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
1282 monitor_printf(mon, " %s: %s", vc->name, vc->info_str);
1284 monitor_printf(mon, " peer=%s", vc->peer->name);
1286 monitor_printf(mon, "\n");
1290 int do_set_link(Monitor *mon, const QDict *qdict, QObject **ret_data)
1293 VLANClientState *vc = NULL;
1294 const char *name = qdict_get_str(qdict, "name");
1295 int up = qdict_get_bool(qdict, "up");
1297 QTAILQ_FOREACH(vlan, &vlans, next) {
1298 QTAILQ_FOREACH(vc, &vlan->clients, next) {
1299 if (strcmp(vc->name, name) == 0) {
1304 vc = qemu_find_netdev(name);
1308 qerror_report(QERR_DEVICE_NOT_FOUND, name);
1312 vc->link_down = !up;
1314 if (vc->info->link_status_changed) {
1315 vc->info->link_status_changed(vc);
1320 void net_cleanup(void)
1323 VLANClientState *vc, *next_vc;
1325 QTAILQ_FOREACH(vlan, &vlans, next) {
1326 QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) {
1327 qemu_del_vlan_client(vc);
1331 QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) {
1332 qemu_del_vlan_client(vc);
1336 void net_check_clients(void)
1339 VLANClientState *vc;
1340 int has_nic = 0, has_host_dev = 0;
1342 QTAILQ_FOREACH(vlan, &vlans, next) {
1343 QTAILQ_FOREACH(vc, &vlan->clients, next) {
1344 switch (vc->info->type) {
1345 case NET_CLIENT_TYPE_NIC:
1348 case NET_CLIENT_TYPE_SLIRP:
1349 case NET_CLIENT_TYPE_TAP:
1350 case NET_CLIENT_TYPE_SOCKET:
1351 case NET_CLIENT_TYPE_VDE:
1357 if (has_host_dev && !has_nic)
1358 fprintf(stderr, "Warning: vlan %d with no nics\n", vlan->id);
1359 if (has_nic && !has_host_dev)
1361 "Warning: vlan %d is not connected to host network\n",
1364 QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
1366 fprintf(stderr, "Warning: %s %s has no peer\n",
1367 vc->info->type == NET_CLIENT_TYPE_NIC ? "nic" : "netdev",
1373 static int net_init_client(QemuOpts *opts, void *dummy)
1375 if (net_client_init(NULL, opts, 0) < 0)
1380 static int net_init_netdev(QemuOpts *opts, void *dummy)
1382 return net_client_init(NULL, opts, 1);
1385 int net_init_clients(void)
1387 QemuOptsList *net = qemu_find_opts("net");
1390 /* if no clients, we use a default config */
1391 qemu_opts_set(net, NULL, "type", "nic");
1393 qemu_opts_set(net, NULL, "type", "user");
1397 QTAILQ_INIT(&vlans);
1398 QTAILQ_INIT(&non_vlan_clients);
1400 if (qemu_opts_foreach(qemu_find_opts("netdev"), net_init_netdev, NULL, 1) == -1)
1403 if (qemu_opts_foreach(net, net_init_client, NULL, 1) == -1) {
1410 int net_client_parse(QemuOptsList *opts_list, const char *optarg)
1412 #if defined(CONFIG_SLIRP)
1414 if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
1419 if (!qemu_opts_parse(opts_list, optarg, 1)) {