* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
-#include <unistd.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <time.h>
-#include <errno.h>
-#include <sys/time.h>
-#include <zlib.h>
-
-/* Needed early for CONFIG_BSD etc. */
-#include "config-host.h"
-/* Needed early to override system queue definitions on BSD */
-#include "sys-queue.h"
-
-#ifndef _WIN32
-#include <sys/times.h>
-#include <sys/wait.h>
-#include <termios.h>
-#include <sys/mman.h>
-#include <sys/ioctl.h>
-#include <sys/resource.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <net/if.h>
-#ifdef __NetBSD__
-#include <net/if_tap.h>
-#endif
-#ifdef __linux__
-#include <linux/if_tun.h>
-#endif
-#include <arpa/inet.h>
-#include <dirent.h>
-#include <netdb.h>
-#include <sys/select.h>
-#ifdef CONFIG_BSD
-#include <sys/stat.h>
-#if defined(__FreeBSD__) || defined(__DragonFly__)
-#include <libutil.h>
-#else
-#include <util.h>
-#endif
-#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
-#include <freebsd/stdlib.h>
-#else
-#ifdef __linux__
-#include <pty.h>
-#include <malloc.h>
-#include <linux/rtc.h>
-
-/* For the benefit of older linux systems which don't supply it,
- we use a local copy of hpet.h. */
-/* #include <linux/hpet.h> */
-#include "hpet.h"
-
-#include <linux/ppdev.h>
-#include <linux/parport.h>
-#endif
-#ifdef __sun__
-#include <sys/stat.h>
-#include <sys/ethernet.h>
-#include <sys/sockio.h>
-#include <netinet/arp.h>
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
-#include <netinet/ip_icmp.h> // must come after ip.h
-#include <netinet/udp.h>
-#include <netinet/tcp.h>
-#include <net/if.h>
-#include <syslog.h>
-#include <stropts.h>
-#endif
-#endif
-#endif
-
-#if defined(__OpenBSD__)
-#include <util.h>
-#endif
+#include "net.h"
-#if defined(CONFIG_VDE)
-#include <libvdeplug.h>
-#endif
+#include "config-host.h"
-#include "qemu-common.h"
-#include "net.h"
+#include "net/tap.h"
+#include "net/socket.h"
+#include "net/dump.h"
+#include "net/slirp.h"
+#include "net/vde.h"
+#include "net/util.h"
#include "monitor.h"
#include "sysemu.h"
-#include "qemu-timer.h"
-#include "qemu-char.h"
-#include "audio/audio.h"
+#include "qemu-common.h"
#include "qemu_socket.h"
-#include "qemu-log.h"
-
-#include "slirp/libslirp.h"
-
-static VLANState *first_vlan;
+static QTAILQ_HEAD(, VLANState) vlans;
+static QTAILQ_HEAD(, VLANClientState) non_vlan_clients;
/***********************************************************/
/* network device redirectors */
-#if defined(DEBUG_NET) || defined(DEBUG_SLIRP)
+#if defined(DEBUG_NET)
static void hex_dump(FILE *f, const uint8_t *buf, int size)
{
int len, i, j, c;
}
#endif
-static int parse_macaddr(uint8_t *macaddr, const char *p)
-{
- int i;
- char *last_char;
- long int offset;
-
- errno = 0;
- offset = strtol(p, &last_char, 0);
- if (0 == errno && '\0' == *last_char &&
- offset >= 0 && offset <= 0xFFFFFF) {
- macaddr[3] = (offset & 0xFF0000) >> 16;
- macaddr[4] = (offset & 0xFF00) >> 8;
- macaddr[5] = offset & 0xFF;
- return 0;
- } else {
- for(i = 0; i < 6; i++) {
- macaddr[i] = strtol(p, (char **)&p, 16);
- if (i == 5) {
- if (*p != '\0')
- return -1;
- } else {
- if (*p != ':' && *p != '-')
- return -1;
- p++;
- }
- }
- return 0;
- }
-
- return -1;
-}
-
static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
{
const char *p, *p1;
macaddr[3], macaddr[4], macaddr[5]);
}
+void qemu_macaddr_default_if_unset(MACAddr *macaddr)
+{
+ static int index = 0;
+ static const MACAddr zero = { .a = { 0,0,0,0,0,0 } };
+
+ if (memcmp(macaddr, &zero, sizeof(zero)) != 0)
+ return;
+ macaddr->a[0] = 0x52;
+ macaddr->a[1] = 0x54;
+ macaddr->a[2] = 0x00;
+ macaddr->a[3] = 0x12;
+ macaddr->a[4] = 0x34;
+ macaddr->a[5] = 0x56 + index++;
+}
+
static char *assign_name(VLANClientState *vc1, const char *model)
{
VLANState *vlan;
char buf[256];
int id = 0;
- for (vlan = first_vlan; vlan; vlan = vlan->next) {
+ QTAILQ_FOREACH(vlan, &vlans, next) {
VLANClientState *vc;
- for (vc = vlan->first_client; vc; vc = vc->next)
- if (vc != vc1 && strcmp(vc->model, model) == 0)
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
+ if (vc != vc1 && strcmp(vc->model, model) == 0) {
id++;
+ }
+ }
}
snprintf(buf, sizeof(buf), "%s.%d", model, id);
- return strdup(buf);
+ return qemu_strdup(buf);
}
-VLANClientState *qemu_new_vlan_client(VLANState *vlan,
- const char *model,
- const char *name,
- NetCanReceive *can_receive,
- NetReceive *receive,
- NetReceiveIOV *receive_iov,
- NetCleanup *cleanup,
- void *opaque)
+static ssize_t qemu_deliver_packet(VLANClientState *sender,
+ unsigned flags,
+ const uint8_t *data,
+ size_t size,
+ void *opaque);
+static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ void *opaque);
+
+VLANClientState *qemu_new_net_client(NetClientInfo *info,
+ VLANState *vlan,
+ VLANClientState *peer,
+ const char *model,
+ const char *name)
{
- VLANClientState *vc, **pvc;
- vc = qemu_mallocz(sizeof(VLANClientState));
- vc->model = strdup(model);
- if (name)
- vc->name = strdup(name);
- else
+ VLANClientState *vc;
+
+ assert(info->size >= sizeof(VLANClientState));
+
+ vc = qemu_mallocz(info->size);
+
+ vc->info = info;
+ vc->model = qemu_strdup(model);
+ if (name) {
+ vc->name = qemu_strdup(name);
+ } else {
vc->name = assign_name(vc, model);
- vc->can_receive = can_receive;
- vc->receive = receive;
- vc->receive_iov = receive_iov;
- vc->cleanup = cleanup;
- vc->opaque = opaque;
- vc->vlan = vlan;
-
- vc->next = NULL;
- pvc = &vlan->first_client;
- while (*pvc != NULL)
- pvc = &(*pvc)->next;
- *pvc = vc;
+ }
+
+ if (vlan) {
+ assert(!peer);
+ vc->vlan = vlan;
+ QTAILQ_INSERT_TAIL(&vc->vlan->clients, vc, next);
+ } else {
+ if (peer) {
+ vc->peer = peer;
+ peer->peer = vc;
+ }
+ QTAILQ_INSERT_TAIL(&non_vlan_clients, vc, next);
+
+ vc->send_queue = qemu_new_net_queue(qemu_deliver_packet,
+ qemu_deliver_packet_iov,
+ vc);
+ }
+
return vc;
}
-void qemu_del_vlan_client(VLANClientState *vc)
+NICState *qemu_new_nic(NetClientInfo *info,
+ NICConf *conf,
+ const char *model,
+ const char *name,
+ void *opaque)
{
- VLANClientState **pvc = &vc->vlan->first_client;
+ VLANClientState *nc;
+ NICState *nic;
- while (*pvc != NULL)
- if (*pvc == vc) {
- *pvc = vc->next;
- if (vc->cleanup) {
- vc->cleanup(vc);
- }
- free(vc->name);
- free(vc->model);
- qemu_free(vc);
- break;
- } else
- pvc = &(*pvc)->next;
+ assert(info->type == NET_CLIENT_TYPE_NIC);
+ assert(info->size >= sizeof(NICState));
+
+ nc = qemu_new_net_client(info, conf->vlan, conf->peer, model, name);
+
+ nic = DO_UPCAST(NICState, nc, nc);
+ nic->conf = conf;
+ nic->opaque = opaque;
+
+ return nic;
}
-VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
+void qemu_del_vlan_client(VLANClientState *vc)
{
- VLANClientState **pvc = &vlan->first_client;
+ if (vc->vlan) {
+ QTAILQ_REMOVE(&vc->vlan->clients, vc, next);
+ } else {
+ if (vc->send_queue) {
+ qemu_del_net_queue(vc->send_queue);
+ }
+ QTAILQ_REMOVE(&non_vlan_clients, vc, next);
+ if (vc->peer) {
+ vc->peer->peer = NULL;
+ }
+ }
- while (*pvc != NULL)
- if ((*pvc)->opaque == opaque)
- return *pvc;
- else
- pvc = &(*pvc)->next;
+ if (vc->info->cleanup) {
+ vc->info->cleanup(vc);
+ }
- return NULL;
+ qemu_free(vc->name);
+ qemu_free(vc->model);
+ qemu_free(vc);
}
-static VLANClientState *
+VLANClientState *
qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
const char *client_str)
{
return NULL;
}
- for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
if (!strcmp(vc->name, client_str)) {
break;
}
return vc;
}
+void qemu_foreach_nic(qemu_nic_foreach func, void *opaque)
+{
+ VLANClientState *nc;
+ VLANState *vlan;
+
+ QTAILQ_FOREACH(nc, &non_vlan_clients, next) {
+ if (nc->info->type == NET_CLIENT_TYPE_NIC) {
+ func(DO_UPCAST(NICState, nc, nc), opaque);
+ }
+ }
+
+ QTAILQ_FOREACH(vlan, &vlans, next) {
+ QTAILQ_FOREACH(nc, &vlan->clients, next) {
+ if (nc->info->type == NET_CLIENT_TYPE_NIC) {
+ func(DO_UPCAST(NICState, nc, nc), opaque);
+ }
+ }
+ }
+}
+
int qemu_can_send_packet(VLANClientState *sender)
{
VLANState *vlan = sender->vlan;
VLANClientState *vc;
- for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
+ if (sender->peer) {
+ if (sender->peer->receive_disabled) {
+ return 0;
+ } else if (sender->peer->info->can_receive &&
+ !sender->peer->info->can_receive(sender->peer)) {
+ return 0;
+ } else {
+ return 1;
+ }
+ }
+
+ if (!sender->vlan) {
+ return 1;
+ }
+
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
if (vc == sender) {
continue;
}
/* no can_receive() handler, they can always receive */
- if (!vc->can_receive || vc->can_receive(vc)) {
+ if (!vc->info->can_receive || vc->info->can_receive(vc)) {
return 1;
}
}
return 0;
}
-static int
-qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
+static ssize_t qemu_deliver_packet(VLANClientState *sender,
+ unsigned flags,
+ const uint8_t *data,
+ size_t size,
+ void *opaque)
{
- VLANClientState *vc;
- int ret = -1;
+ VLANClientState *vc = opaque;
+ ssize_t ret;
+
+ if (vc->link_down) {
+ return size;
+ }
+
+ if (vc->receive_disabled) {
+ return 0;
+ }
+
+ if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
+ ret = vc->info->receive_raw(vc, data, size);
+ } else {
+ ret = vc->info->receive(vc, data, size);
+ }
+
+ if (ret == 0) {
+ vc->receive_disabled = 1;
+ };
- sender->vlan->delivering = 1;
+ return ret;
+}
+
+static ssize_t qemu_vlan_deliver_packet(VLANClientState *sender,
+ unsigned flags,
+ const uint8_t *buf,
+ size_t size,
+ void *opaque)
+{
+ VLANState *vlan = opaque;
+ VLANClientState *vc;
+ ssize_t ret = -1;
- for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
ssize_t len;
if (vc == sender) {
continue;
}
- len = vc->receive(vc, buf, size);
+ if (vc->receive_disabled) {
+ ret = 0;
+ continue;
+ }
+
+ if (flags & QEMU_NET_PACKET_FLAG_RAW && vc->info->receive_raw) {
+ len = vc->info->receive_raw(vc, buf, size);
+ } else {
+ len = vc->info->receive(vc, buf, size);
+ }
+
+ if (len == 0) {
+ vc->receive_disabled = 1;
+ }
ret = (ret >= 0) ? ret : len;
- }
- sender->vlan->delivering = 0;
+ }
return ret;
}
void qemu_purge_queued_packets(VLANClientState *vc)
{
- VLANPacket *packet, *next;
+ NetQueue *queue;
- TAILQ_FOREACH_SAFE(packet, &vc->vlan->send_queue, entry, next) {
- if (packet->sender == vc) {
- TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
- qemu_free(packet);
- }
+ if (!vc->peer && !vc->vlan) {
+ return;
+ }
+
+ if (vc->peer) {
+ queue = vc->peer->send_queue;
+ } else {
+ queue = vc->vlan->send_queue;
}
+
+ qemu_net_queue_purge(queue, vc);
}
void qemu_flush_queued_packets(VLANClientState *vc)
{
- while (!TAILQ_EMPTY(&vc->vlan->send_queue)) {
- VLANPacket *packet;
- int ret;
-
- packet = TAILQ_FIRST(&vc->vlan->send_queue);
- TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
-
- ret = qemu_deliver_packet(packet->sender, packet->data, packet->size);
- if (ret == 0 && packet->sent_cb != NULL) {
- TAILQ_INSERT_HEAD(&vc->vlan->send_queue, packet, entry);
- break;
- }
+ NetQueue *queue;
- if (packet->sent_cb)
- packet->sent_cb(packet->sender, ret);
+ vc->receive_disabled = 0;
- qemu_free(packet);
+ if (vc->vlan) {
+ queue = vc->vlan->send_queue;
+ } else {
+ queue = vc->send_queue;
}
-}
-
-static void qemu_enqueue_packet(VLANClientState *sender,
- const uint8_t *buf, int size,
- NetPacketSent *sent_cb)
-{
- VLANPacket *packet;
- packet = qemu_malloc(sizeof(VLANPacket) + size);
- packet->sender = sender;
- packet->size = size;
- packet->sent_cb = sent_cb;
- memcpy(packet->data, buf, size);
-
- TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
+ qemu_net_queue_flush(queue);
}
-ssize_t qemu_send_packet_async(VLANClientState *sender,
- const uint8_t *buf, int size,
- NetPacketSent *sent_cb)
+static ssize_t qemu_send_packet_async_with_flags(VLANClientState *sender,
+ unsigned flags,
+ const uint8_t *buf, int size,
+ NetPacketSent *sent_cb)
{
- int ret;
-
- if (sender->link_down) {
- return size;
- }
+ NetQueue *queue;
#ifdef DEBUG_NET
- printf("vlan %d send:\n", sender->vlan->id);
+ printf("qemu_send_packet_async:\n");
hex_dump(stdout, buf, size);
#endif
- if (sender->vlan->delivering) {
- qemu_enqueue_packet(sender, buf, size, NULL);
+ if (sender->link_down || (!sender->peer && !sender->vlan)) {
return size;
}
- ret = qemu_deliver_packet(sender, buf, size);
- if (ret == 0 && sent_cb != NULL) {
- qemu_enqueue_packet(sender, buf, size, sent_cb);
- return 0;
+ if (sender->peer) {
+ queue = sender->peer->send_queue;
+ } else {
+ queue = sender->vlan->send_queue;
}
- qemu_flush_queued_packets(sender);
+ return qemu_net_queue_send(queue, sender, flags, buf, size, sent_cb);
+}
- return ret;
+ssize_t qemu_send_packet_async(VLANClientState *sender,
+ const uint8_t *buf, int size,
+ NetPacketSent *sent_cb)
+{
+ return qemu_send_packet_async_with_flags(sender, QEMU_NET_PACKET_FLAG_NONE,
+ buf, size, sent_cb);
}
void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
qemu_send_packet_async(vc, buf, size, NULL);
}
+ssize_t qemu_send_packet_raw(VLANClientState *vc, const uint8_t *buf, int size)
+{
+ return qemu_send_packet_async_with_flags(vc, QEMU_NET_PACKET_FLAG_RAW,
+ buf, size, NULL);
+}
+
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
int iovcnt)
{
offset += len;
}
- return vc->receive(vc, buffer, offset);
+ return vc->info->receive(vc, buffer, offset);
}
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
return offset;
}
-static int qemu_deliver_packet_iov(VLANClientState *sender,
- const struct iovec *iov, int iovcnt)
+static ssize_t qemu_deliver_packet_iov(VLANClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ void *opaque)
{
- VLANClientState *vc;
- int ret = -1;
+ VLANClientState *vc = opaque;
+
+ if (vc->link_down) {
+ return calc_iov_length(iov, iovcnt);
+ }
+
+ if (vc->info->receive_iov) {
+ return vc->info->receive_iov(vc, iov, iovcnt);
+ } else {
+ return vc_sendv_compat(vc, iov, iovcnt);
+ }
+}
- sender->vlan->delivering = 1;
+static ssize_t qemu_vlan_deliver_packet_iov(VLANClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ void *opaque)
+{
+ VLANState *vlan = opaque;
+ VLANClientState *vc;
+ ssize_t ret = -1;
- for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
ssize_t len;
if (vc == sender) {
continue;
}
- if (vc->receive_iov) {
- len = vc->receive_iov(vc, iov, iovcnt);
+ assert(!(flags & QEMU_NET_PACKET_FLAG_RAW));
+
+ if (vc->info->receive_iov) {
+ len = vc->info->receive_iov(vc, iov, iovcnt);
} else {
len = vc_sendv_compat(vc, iov, iovcnt);
}
ret = (ret >= 0) ? ret : len;
}
- sender->vlan->delivering = 0;
-
return ret;
}
-static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
- const struct iovec *iov, int iovcnt,
- NetPacketSent *sent_cb)
-{
- VLANPacket *packet;
- size_t max_len = 0;
- int i;
-
- max_len = calc_iov_length(iov, iovcnt);
-
- packet = qemu_malloc(sizeof(VLANPacket) + max_len);
- packet->sender = sender;
- packet->sent_cb = sent_cb;
- packet->size = 0;
-
- for (i = 0; i < iovcnt; i++) {
- size_t len = iov[i].iov_len;
-
- memcpy(packet->data + packet->size, iov[i].iov_base, len);
- packet->size += len;
- }
-
- TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
-
- return packet->size;
-}
-
ssize_t qemu_sendv_packet_async(VLANClientState *sender,
const struct iovec *iov, int iovcnt,
NetPacketSent *sent_cb)
{
- int ret;
+ NetQueue *queue;
- if (sender->link_down) {
+ if (sender->link_down || (!sender->peer && !sender->vlan)) {
return calc_iov_length(iov, iovcnt);
}
- if (sender->vlan->delivering) {
- return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
- }
-
- ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
- if (ret == 0 && sent_cb != NULL) {
- qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
- return 0;
+ if (sender->peer) {
+ queue = sender->peer->send_queue;
+ } else {
+ queue = sender->vlan->send_queue;
}
- qemu_flush_queued_packets(sender);
-
- return ret;
+ return qemu_net_queue_send_iov(queue, sender,
+ QEMU_NET_PACKET_FLAG_NONE,
+ iov, iovcnt, sent_cb);
}
ssize_t
return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
}
-static void config_error(Monitor *mon, const char *fmt, ...)
+/* find or alloc a new VLAN */
+VLANState *qemu_find_vlan(int id, int allocate)
{
- va_list ap;
+ VLANState *vlan;
- va_start(ap, fmt);
- if (mon) {
- monitor_vprintf(mon, fmt, ap);
- } else {
- fprintf(stderr, "qemu: ");
- vfprintf(stderr, fmt, ap);
- exit(1);
+ QTAILQ_FOREACH(vlan, &vlans, next) {
+ if (vlan->id == id) {
+ return vlan;
+ }
}
- va_end(ap);
-}
-#if defined(CONFIG_SLIRP)
+ if (!allocate) {
+ return NULL;
+ }
-/* slirp network adapter */
+ vlan = qemu_mallocz(sizeof(VLANState));
+ vlan->id = id;
+ QTAILQ_INIT(&vlan->clients);
-#define SLIRP_CFG_HOSTFWD 1
-#define SLIRP_CFG_LEGACY 2
+ vlan->send_queue = qemu_new_net_queue(qemu_vlan_deliver_packet,
+ qemu_vlan_deliver_packet_iov,
+ vlan);
-struct slirp_config_str {
- struct slirp_config_str *next;
- int flags;
- char str[1024];
- int legacy_format;
-};
+ QTAILQ_INSERT_TAIL(&vlans, vlan, next);
+
+ return vlan;
+}
-typedef struct SlirpState {
- TAILQ_ENTRY(SlirpState) entry;
+VLANClientState *qemu_find_netdev(const char *id)
+{
VLANClientState *vc;
- Slirp *slirp;
-#ifndef _WIN32
- char smb_dir[128];
-#endif
-} SlirpState;
-static struct slirp_config_str *slirp_configs;
-const char *legacy_tftp_prefix;
-const char *legacy_bootp_filename;
-static TAILQ_HEAD(slirp_stacks, SlirpState) slirp_stacks =
- TAILQ_HEAD_INITIALIZER(slirp_stacks);
+ QTAILQ_FOREACH(vc, &non_vlan_clients, next) {
+ if (!strcmp(vc->name, id)) {
+ return vc;
+ }
+ }
-static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
- int legacy_format);
-static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
- int legacy_format);
+ return NULL;
+}
-#ifndef _WIN32
-static const char *legacy_smb_export;
+static int nic_get_free_idx(void)
+{
+ int index;
-static void slirp_smb(SlirpState *s, Monitor *mon, const char *exported_dir,
- struct in_addr vserver_addr);
-static void slirp_smb_cleanup(SlirpState *s);
-#else
-static inline void slirp_smb_cleanup(SlirpState *s) { }
-#endif
+ for (index = 0; index < MAX_NICS; index++)
+ if (!nd_table[index].used)
+ return index;
+ return -1;
+}
-int slirp_can_output(void *opaque)
+int qemu_show_nic_models(const char *arg, const char *const *models)
{
- SlirpState *s = opaque;
+ int i;
- return qemu_can_send_packet(s->vc);
+ if (!arg || strcmp(arg, "?"))
+ return 0;
+
+ fprintf(stderr, "qemu: Supported NIC models: ");
+ for (i = 0 ; models[i]; i++)
+ fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
+ return 1;
}
-void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
+void qemu_check_nic_model(NICInfo *nd, const char *model)
{
- SlirpState *s = opaque;
+ const char *models[2];
-#ifdef DEBUG_SLIRP
- printf("slirp output:\n");
- hex_dump(stdout, pkt, pkt_len);
-#endif
- qemu_send_packet(s->vc, pkt, pkt_len);
+ models[0] = model;
+ models[1] = NULL;
+
+ if (qemu_show_nic_models(nd->model, models))
+ exit(0);
+ if (qemu_find_nic_model(nd, models, model) < 0)
+ exit(1);
}
-static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
+int qemu_find_nic_model(NICInfo *nd, const char * const *models,
+ const char *default_model)
{
- SlirpState *s = vc->opaque;
+ int i;
-#ifdef DEBUG_SLIRP
- printf("slirp input:\n");
- hex_dump(stdout, buf, size);
-#endif
- slirp_input(s->slirp, buf, size);
- return size;
+ if (!nd->model)
+ nd->model = qemu_strdup(default_model);
+
+ for (i = 0 ; models[i]; i++) {
+ if (strcmp(nd->model, models[i]) == 0)
+ return i;
+ }
+
+ qemu_error("qemu: Unsupported NIC model: %s\n", nd->model);
+ return -1;
}
-static void net_slirp_cleanup(VLANClientState *vc)
+int net_handle_fd_param(Monitor *mon, const char *param)
{
- SlirpState *s = vc->opaque;
+ if (!qemu_isdigit(param[0])) {
+ int fd;
+
+ fd = monitor_get_fd(mon, param);
+ if (fd == -1) {
+ qemu_error("No file descriptor named %s found", param);
+ return -1;
+ }
- slirp_cleanup(s->slirp);
- slirp_smb_cleanup(s);
- TAILQ_REMOVE(&slirp_stacks, s, entry);
- qemu_free(s);
+ return fd;
+ } else {
+ return strtol(param, NULL, 0);
+ }
}
-static int net_slirp_init(Monitor *mon, VLANState *vlan, const char *model,
- const char *name, int restricted,
- const char *vnetwork, const char *vhost,
- const char *vhostname, const char *tftp_export,
- const char *bootfile, const char *vdhcp_start,
- const char *vnameserver, const char *smb_export,
- const char *vsmbserver)
+static int net_init_nic(QemuOpts *opts,
+ Monitor *mon,
+ const char *name,
+ VLANState *vlan)
{
- /* default settings according to historic slirp */
- struct in_addr net = { .s_addr = htonl(0x0a000200) }; /* 10.0.2.0 */
- struct in_addr mask = { .s_addr = htonl(0xffffff00) }; /* 255.255.255.0 */
- struct in_addr host = { .s_addr = htonl(0x0a000202) }; /* 10.0.2.2 */
- struct in_addr dhcp = { .s_addr = htonl(0x0a00020f) }; /* 10.0.2.15 */
- struct in_addr dns = { .s_addr = htonl(0x0a000203) }; /* 10.0.2.3 */
-#ifndef _WIN32
- struct in_addr smbsrv = { .s_addr = 0 };
-#endif
- SlirpState *s;
- char buf[20];
- uint32_t addr;
- int shift;
- char *end;
+ int idx;
+ NICInfo *nd;
+ const char *netdev;
- if (!tftp_export) {
- tftp_export = legacy_tftp_prefix;
- }
- if (!bootfile) {
- bootfile = legacy_bootp_filename;
+ idx = nic_get_free_idx();
+ if (idx == -1 || nb_nics >= MAX_NICS) {
+ qemu_error("Too Many NICs\n");
+ return -1;
}
- if (vnetwork) {
- if (get_str_sep(buf, sizeof(buf), &vnetwork, '/') < 0) {
- if (!inet_aton(vnetwork, &net)) {
- return -1;
- }
- addr = ntohl(net.s_addr);
- if (!(addr & 0x80000000)) {
- mask.s_addr = htonl(0xff000000); /* class A */
- } else if ((addr & 0xfff00000) == 0xac100000) {
- mask.s_addr = htonl(0xfff00000); /* priv. 172.16.0.0/12 */
- } else if ((addr & 0xc0000000) == 0x80000000) {
- mask.s_addr = htonl(0xffff0000); /* class B */
- } else if ((addr & 0xffff0000) == 0xc0a80000) {
- mask.s_addr = htonl(0xffff0000); /* priv. 192.168.0.0/16 */
- } else if ((addr & 0xffff0000) == 0xc6120000) {
- mask.s_addr = htonl(0xfffe0000); /* tests 198.18.0.0/15 */
- } else if ((addr & 0xe0000000) == 0xe0000000) {
- mask.s_addr = htonl(0xffffff00); /* class C */
- } else {
- mask.s_addr = htonl(0xfffffff0); /* multicast/reserved */
- }
- } else {
- if (!inet_aton(buf, &net)) {
- return -1;
- }
- shift = strtol(vnetwork, &end, 10);
- if (*end != '\0') {
- if (!inet_aton(vnetwork, &mask)) {
- return -1;
- }
- } else if (shift < 4 || shift > 32) {
- return -1;
- } else {
- mask.s_addr = htonl(0xffffffff << (32 - shift));
- }
- }
- net.s_addr &= mask.s_addr;
- host.s_addr = net.s_addr | (htonl(0x0202) & ~mask.s_addr);
- dhcp.s_addr = net.s_addr | (htonl(0x020f) & ~mask.s_addr);
- dns.s_addr = net.s_addr | (htonl(0x0203) & ~mask.s_addr);
- }
-
- if (vhost && !inet_aton(vhost, &host)) {
- return -1;
- }
- if ((host.s_addr & mask.s_addr) != net.s_addr) {
- return -1;
- }
-
- if (vdhcp_start && !inet_aton(vdhcp_start, &dhcp)) {
- return -1;
- }
- if ((dhcp.s_addr & mask.s_addr) != net.s_addr ||
- dhcp.s_addr == host.s_addr || dhcp.s_addr == dns.s_addr) {
- return -1;
- }
-
- if (vnameserver && !inet_aton(vnameserver, &dns)) {
- return -1;
- }
- if ((dns.s_addr & mask.s_addr) != net.s_addr ||
- dns.s_addr == host.s_addr) {
- return -1;
- }
-
-#ifndef _WIN32
- if (vsmbserver && !inet_aton(vsmbserver, &smbsrv)) {
- return -1;
- }
-#endif
-
- s = qemu_mallocz(sizeof(SlirpState));
- s->slirp = slirp_init(restricted, net, mask, host, vhostname,
- tftp_export, bootfile, dhcp, dns, s);
- TAILQ_INSERT_TAIL(&slirp_stacks, s, entry);
-
- while (slirp_configs) {
- struct slirp_config_str *config = slirp_configs;
-
- if (config->flags & SLIRP_CFG_HOSTFWD) {
- slirp_hostfwd(s, mon, config->str,
- config->flags & SLIRP_CFG_LEGACY);
- } else {
- slirp_guestfwd(s, mon, config->str,
- config->flags & SLIRP_CFG_LEGACY);
- }
- slirp_configs = config->next;
- qemu_free(config);
- }
-#ifndef _WIN32
- if (!smb_export) {
- smb_export = legacy_smb_export;
- }
- if (smb_export) {
- slirp_smb(s, mon, smb_export, smbsrv);
- }
-#endif
-
- s->vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive, NULL,
- net_slirp_cleanup, s);
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "net=%s, restricted=%c", inet_ntoa(net), restricted ? 'y' : 'n');
- return 0;
-}
-
-static SlirpState *slirp_lookup(Monitor *mon, const char *vlan,
- const char *stack)
-{
- VLANClientState *vc;
-
- if (vlan) {
- vc = qemu_find_vlan_client_by_name(mon, strtol(vlan, NULL, 0), stack);
- if (!vc) {
- return NULL;
- }
- if (strcmp(vc->model, "user")) {
- monitor_printf(mon, "invalid device specified\n");
- return NULL;
- }
- return vc->opaque;
- } else {
- if (TAILQ_EMPTY(&slirp_stacks)) {
- monitor_printf(mon, "user mode network stack not in use\n");
- return NULL;
- }
- return TAILQ_FIRST(&slirp_stacks);
- }
-}
-
-void net_slirp_hostfwd_remove(Monitor *mon, const QDict *qdict)
-{
- struct in_addr host_addr = { .s_addr = INADDR_ANY };
- int host_port;
- char buf[256] = "";
- const char *src_str, *p;
- SlirpState *s;
- int is_udp = 0;
- int err;
- const char *arg1 = qdict_get_str(qdict, "arg1");
- const char *arg2 = qdict_get_try_str(qdict, "arg2");
- const char *arg3 = qdict_get_try_str(qdict, "arg3");
-
- if (arg2) {
- s = slirp_lookup(mon, arg1, arg2);
- src_str = arg3;
- } else {
- s = slirp_lookup(mon, NULL, NULL);
- src_str = arg1;
- }
- if (!s) {
- return;
- }
-
- if (!src_str || !src_str[0])
- goto fail_syntax;
-
- p = src_str;
- get_str_sep(buf, sizeof(buf), &p, ':');
-
- if (!strcmp(buf, "tcp") || buf[0] == '\0') {
- is_udp = 0;
- } else if (!strcmp(buf, "udp")) {
- is_udp = 1;
- } else {
- goto fail_syntax;
- }
-
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
- goto fail_syntax;
- }
-
- host_port = atoi(p);
-
- err = slirp_remove_hostfwd(TAILQ_FIRST(&slirp_stacks)->slirp, is_udp,
- host_addr, host_port);
-
- monitor_printf(mon, "host forwarding rule for %s %s\n", src_str,
- err ? "removed" : "not found");
- return;
-
- fail_syntax:
- monitor_printf(mon, "invalid format\n");
-}
-
-static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
- int legacy_format)
-{
- struct in_addr host_addr = { .s_addr = INADDR_ANY };
- struct in_addr guest_addr = { .s_addr = 0 };
- int host_port, guest_port;
- const char *p;
- char buf[256];
- int is_udp;
- char *end;
-
- p = redir_str;
- if (!p || get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (!strcmp(buf, "tcp") || buf[0] == '\0') {
- is_udp = 0;
- } else if (!strcmp(buf, "udp")) {
- is_udp = 1;
- } else {
- goto fail_syntax;
- }
-
- if (!legacy_format) {
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (buf[0] != '\0' && !inet_aton(buf, &host_addr)) {
- goto fail_syntax;
- }
- }
-
- if (get_str_sep(buf, sizeof(buf), &p, legacy_format ? ':' : '-') < 0) {
- goto fail_syntax;
- }
- host_port = strtol(buf, &end, 0);
- if (*end != '\0' || host_port < 1 || host_port > 65535) {
- goto fail_syntax;
- }
-
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) {
- goto fail_syntax;
- }
-
- guest_port = strtol(p, &end, 0);
- if (*end != '\0' || guest_port < 1 || guest_port > 65535) {
- goto fail_syntax;
- }
-
- if (slirp_add_hostfwd(s->slirp, is_udp, host_addr, host_port, guest_addr,
- guest_port) < 0) {
- config_error(mon, "could not set up host forwarding rule '%s'\n",
- redir_str);
- }
- return;
-
- fail_syntax:
- config_error(mon, "invalid host forwarding rule '%s'\n", redir_str);
-}
-
-void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict)
-{
- const char *redir_str;
- SlirpState *s;
- const char *arg1 = qdict_get_str(qdict, "arg1");
- const char *arg2 = qdict_get_try_str(qdict, "arg2");
- const char *arg3 = qdict_get_try_str(qdict, "arg3");
-
- if (arg2) {
- s = slirp_lookup(mon, arg1, arg2);
- redir_str = arg3;
- } else {
- s = slirp_lookup(mon, NULL, NULL);
- redir_str = arg1;
- }
- if (s) {
- slirp_hostfwd(s, mon, redir_str, 0);
- }
-
-}
-
-void net_slirp_redir(const char *redir_str)
-{
- struct slirp_config_str *config;
-
- if (TAILQ_EMPTY(&slirp_stacks)) {
- config = qemu_malloc(sizeof(*config));
- pstrcpy(config->str, sizeof(config->str), redir_str);
- config->flags = SLIRP_CFG_HOSTFWD | SLIRP_CFG_LEGACY;
- config->next = slirp_configs;
- slirp_configs = config;
- return;
- }
-
- slirp_hostfwd(TAILQ_FIRST(&slirp_stacks), NULL, redir_str, 1);
-}
-
-#ifndef _WIN32
-
-/* automatic user mode samba server configuration */
-static void slirp_smb_cleanup(SlirpState *s)
-{
- char cmd[128];
-
- if (s->smb_dir[0] != '\0') {
- snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir);
- system(cmd);
- s->smb_dir[0] = '\0';
- }
-}
-
-static void slirp_smb(SlirpState* s, Monitor *mon, const char *exported_dir,
- struct in_addr vserver_addr)
-{
- static int instance;
- char smb_conf[128];
- char smb_cmdline[128];
- FILE *f;
-
- snprintf(s->smb_dir, sizeof(s->smb_dir), "/tmp/qemu-smb.%ld-%d",
- (long)getpid(), instance++);
- if (mkdir(s->smb_dir, 0700) < 0) {
- config_error(mon, "could not create samba server dir '%s'\n",
- s->smb_dir);
- return;
- }
- snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf");
-
- f = fopen(smb_conf, "w");
- if (!f) {
- slirp_smb_cleanup(s);
- config_error(mon, "could not create samba server "
- "configuration file '%s'\n", smb_conf);
- return;
- }
- fprintf(f,
- "[global]\n"
- "private dir=%s\n"
- "smb ports=0\n"
- "socket address=127.0.0.1\n"
- "pid directory=%s\n"
- "lock directory=%s\n"
- "log file=%s/log.smbd\n"
- "smb passwd file=%s/smbpasswd\n"
- "security = share\n"
- "[qemu]\n"
- "path=%s\n"
- "read only=no\n"
- "guest ok=yes\n",
- s->smb_dir,
- s->smb_dir,
- s->smb_dir,
- s->smb_dir,
- s->smb_dir,
- exported_dir
- );
- fclose(f);
-
- snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
- SMBD_COMMAND, smb_conf);
-
- if (slirp_add_exec(s->slirp, 0, smb_cmdline, &vserver_addr, 139) < 0) {
- slirp_smb_cleanup(s);
- config_error(mon, "conflicting/invalid smbserver address\n");
- }
-}
-
-/* automatic user mode samba server configuration (legacy interface) */
-void net_slirp_smb(const char *exported_dir)
-{
- struct in_addr vserver_addr = { .s_addr = 0 };
-
- if (legacy_smb_export) {
- fprintf(stderr, "-smb given twice\n");
- exit(1);
- }
- legacy_smb_export = exported_dir;
- if (!TAILQ_EMPTY(&slirp_stacks)) {
- slirp_smb(TAILQ_FIRST(&slirp_stacks), NULL, exported_dir,
- vserver_addr);
- }
-}
-
-#endif /* !defined(_WIN32) */
-
-struct GuestFwd {
- CharDriverState *hd;
- struct in_addr server;
- int port;
- Slirp *slirp;
-};
-
-static int guestfwd_can_read(void *opaque)
-{
- struct GuestFwd *fwd = opaque;
- return slirp_socket_can_recv(fwd->slirp, fwd->server, fwd->port);
-}
-
-static void guestfwd_read(void *opaque, const uint8_t *buf, int size)
-{
- struct GuestFwd *fwd = opaque;
- slirp_socket_recv(fwd->slirp, fwd->server, fwd->port, buf, size);
-}
-
-static void slirp_guestfwd(SlirpState *s, Monitor *mon, const char *config_str,
- int legacy_format)
-{
- struct in_addr server = { .s_addr = 0 };
- struct GuestFwd *fwd;
- const char *p;
- char buf[128];
- char *end;
- int port;
-
- p = config_str;
- if (legacy_format) {
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- } else {
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (strcmp(buf, "tcp") && buf[0] != '\0') {
- goto fail_syntax;
- }
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
- goto fail_syntax;
- }
- if (buf[0] != '\0' && !inet_aton(buf, &server)) {
- goto fail_syntax;
- }
- if (get_str_sep(buf, sizeof(buf), &p, '-') < 0) {
- goto fail_syntax;
- }
- }
- port = strtol(buf, &end, 10);
- if (*end != '\0' || port < 1 || port > 65535) {
- goto fail_syntax;
- }
-
- fwd = qemu_malloc(sizeof(struct GuestFwd));
- snprintf(buf, sizeof(buf), "guestfwd.tcp:%d", port);
- fwd->hd = qemu_chr_open(buf, p, NULL);
- if (!fwd->hd) {
- config_error(mon, "could not open guest forwarding device '%s'\n",
- buf);
- qemu_free(fwd);
- return;
- }
-
- if (slirp_add_exec(s->slirp, 3, fwd->hd, &server, port) < 0) {
- config_error(mon, "conflicting/invalid host:port in guest forwarding "
- "rule '%s'\n", config_str);
- qemu_free(fwd);
- return;
- }
- fwd->server = server;
- fwd->port = port;
- fwd->slirp = s->slirp;
-
- qemu_chr_add_handlers(fwd->hd, guestfwd_can_read, guestfwd_read,
- NULL, fwd);
- return;
-
- fail_syntax:
- config_error(mon, "invalid guest forwarding rule '%s'\n", config_str);
-}
-
-void do_info_usernet(Monitor *mon)
-{
- SlirpState *s;
-
- TAILQ_FOREACH(s, &slirp_stacks, entry) {
- monitor_printf(mon, "VLAN %d (%s):\n", s->vc->vlan->id, s->vc->name);
- slirp_connection_info(s->slirp, mon);
- }
-}
-
-#endif /* CONFIG_SLIRP */
-
-#if !defined(_WIN32)
-
-typedef struct TAPState {
- VLANClientState *vc;
- int fd;
- char down_script[1024];
- char down_script_arg[128];
- uint8_t buf[4096];
- unsigned int read_poll : 1;
- unsigned int write_poll : 1;
-} TAPState;
-
-static int launch_script(const char *setup_script, const char *ifname, int fd);
-
-static int tap_can_send(void *opaque);
-static void tap_send(void *opaque);
-static void tap_writable(void *opaque);
-
-static void tap_update_fd_handler(TAPState *s)
-{
- qemu_set_fd_handler2(s->fd,
- s->read_poll ? tap_can_send : NULL,
- s->read_poll ? tap_send : NULL,
- s->write_poll ? tap_writable : NULL,
- s);
-}
-
-static void tap_read_poll(TAPState *s, int enable)
-{
- s->read_poll = !!enable;
- tap_update_fd_handler(s);
-}
-
-static void tap_write_poll(TAPState *s, int enable)
-{
- s->write_poll = !!enable;
- tap_update_fd_handler(s);
-}
-
-static void tap_writable(void *opaque)
-{
- TAPState *s = opaque;
-
- tap_write_poll(s, 0);
-
- qemu_flush_queued_packets(s->vc);
-}
-
-static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
- int iovcnt)
-{
- TAPState *s = vc->opaque;
- ssize_t len;
-
- do {
- len = writev(s->fd, iov, iovcnt);
- } while (len == -1 && errno == EINTR);
-
- if (len == -1 && errno == EAGAIN) {
- tap_write_poll(s, 1);
- return 0;
- }
-
- return len;
-}
-
-static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
- TAPState *s = vc->opaque;
- ssize_t len;
-
- do {
- len = write(s->fd, buf, size);
- } while (len == -1 && (errno == EINTR || errno == EAGAIN));
-
- return len;
-}
-
-static int tap_can_send(void *opaque)
-{
- TAPState *s = opaque;
-
- return qemu_can_send_packet(s->vc);
-}
-
-#ifdef __sun__
-static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
-{
- struct strbuf sbuf;
- int f = 0;
-
- sbuf.maxlen = maxlen;
- sbuf.buf = (char *)buf;
-
- return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
-}
-#else
-static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
-{
- return read(tapfd, buf, maxlen);
-}
-#endif
-
-static void tap_send_completed(VLANClientState *vc, ssize_t len)
-{
- TAPState *s = vc->opaque;
- tap_read_poll(s, 1);
-}
-
-static void tap_send(void *opaque)
-{
- TAPState *s = opaque;
- int size;
-
- do {
- size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
- if (size <= 0) {
- break;
- }
-
- size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed);
- if (size == 0) {
- tap_read_poll(s, 0);
- }
- } while (size > 0);
-}
-
-#ifdef TUNSETSNDBUF
-/* sndbuf should be set to a value lower than the tx queue
- * capacity of any destination network interface.
- * Ethernet NICs generally have txqueuelen=1000, so 1Mb is
- * a good default, given a 1500 byte MTU.
- */
-#define TAP_DEFAULT_SNDBUF 1024*1024
-
-static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
-{
- int sndbuf = TAP_DEFAULT_SNDBUF;
-
- if (sndbuf_str) {
- sndbuf = atoi(sndbuf_str);
- }
-
- if (!sndbuf) {
- sndbuf = INT_MAX;
- }
-
- if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1 && sndbuf_str) {
- config_error(mon, "TUNSETSNDBUF ioctl failed: %s\n",
- strerror(errno));
- }
-}
-#else
-static void tap_set_sndbuf(TAPState *s, const char *sndbuf_str, Monitor *mon)
-{
- if (sndbuf_str) {
- config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n");
- }
-}
-#endif /* TUNSETSNDBUF */
-
-static void tap_cleanup(VLANClientState *vc)
-{
- TAPState *s = vc->opaque;
-
- qemu_purge_queued_packets(vc);
-
- if (s->down_script[0])
- launch_script(s->down_script, s->down_script_arg, s->fd);
-
- tap_read_poll(s, 0);
- tap_write_poll(s, 0);
- close(s->fd);
- qemu_free(s);
-}
-
-/* fd support */
-
-static TAPState *net_tap_fd_init(VLANState *vlan,
- const char *model,
- const char *name,
- int fd)
-{
- TAPState *s;
-
- s = qemu_mallocz(sizeof(TAPState));
- s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
- tap_receive_iov, tap_cleanup, s);
- tap_read_poll(s, 1);
- snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
- return s;
-}
-
-#if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
-static int tap_open(char *ifname, int ifname_size)
-{
- int fd;
- char *dev;
- struct stat s;
-
- TFR(fd = open("/dev/tap", O_RDWR));
- if (fd < 0) {
- fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
- return -1;
- }
-
- fstat(fd, &s);
- dev = devname(s.st_rdev, S_IFCHR);
- pstrcpy(ifname, ifname_size, dev);
-
- fcntl(fd, F_SETFL, O_NONBLOCK);
- return fd;
-}
-#elif defined(__sun__)
-#define TUNNEWPPA (('T'<<16) | 0x0001)
-/*
- * Allocate TAP device, returns opened fd.
- * Stores dev name in the first arg(must be large enough).
- */
-static int tap_alloc(char *dev, size_t dev_size)
-{
- int tap_fd, if_fd, ppa = -1;
- static int ip_fd = 0;
- char *ptr;
-
- static int arp_fd = 0;
- int ip_muxid, arp_muxid;
- struct strioctl strioc_if, strioc_ppa;
- int link_type = I_PLINK;;
- struct lifreq ifr;
- char actual_name[32] = "";
-
- memset(&ifr, 0x0, sizeof(ifr));
-
- if( *dev ){
- ptr = dev;
- while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
- ppa = atoi(ptr);
- }
-
- /* Check if IP device was opened */
- if( ip_fd )
- close(ip_fd);
-
- TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
- if (ip_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
- return -1;
- }
-
- TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
- if (tap_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/tap");
- return -1;
- }
-
- /* Assign a new PPA and get its unit number. */
- strioc_ppa.ic_cmd = TUNNEWPPA;
- strioc_ppa.ic_timout = 0;
- strioc_ppa.ic_len = sizeof(ppa);
- strioc_ppa.ic_dp = (char *)&ppa;
- if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
- syslog (LOG_ERR, "Can't assign new interface");
-
- TFR(if_fd = open("/dev/tap", O_RDWR, 0));
- if (if_fd < 0) {
- syslog(LOG_ERR, "Can't open /dev/tap (2)");
- return -1;
- }
- if(ioctl(if_fd, I_PUSH, "ip") < 0){
- syslog(LOG_ERR, "Can't push IP module");
- return -1;
- }
-
- if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
- syslog(LOG_ERR, "Can't get flags\n");
-
- snprintf (actual_name, 32, "tap%d", ppa);
- pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
-
- ifr.lifr_ppa = ppa;
- /* Assign ppa according to the unit number returned by tun device */
-
- if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
- syslog (LOG_ERR, "Can't set PPA %d", ppa);
- if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
- syslog (LOG_ERR, "Can't get flags\n");
- /* Push arp module to if_fd */
- if (ioctl (if_fd, I_PUSH, "arp") < 0)
- syslog (LOG_ERR, "Can't push ARP module (2)");
-
- /* Push arp module to ip_fd */
- if (ioctl (ip_fd, I_POP, NULL) < 0)
- syslog (LOG_ERR, "I_POP failed\n");
- if (ioctl (ip_fd, I_PUSH, "arp") < 0)
- syslog (LOG_ERR, "Can't push ARP module (3)\n");
- /* Open arp_fd */
- TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
- if (arp_fd < 0)
- syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
-
- /* Set ifname to arp */
- strioc_if.ic_cmd = SIOCSLIFNAME;
- strioc_if.ic_timout = 0;
- strioc_if.ic_len = sizeof(ifr);
- strioc_if.ic_dp = (char *)𝔦
- if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
- syslog (LOG_ERR, "Can't set ifname to arp\n");
- }
-
- if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
- syslog(LOG_ERR, "Can't link TAP device to IP");
- return -1;
- }
-
- if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
- syslog (LOG_ERR, "Can't link TAP device to ARP");
-
- close (if_fd);
-
- memset(&ifr, 0x0, sizeof(ifr));
- pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
- ifr.lifr_ip_muxid = ip_muxid;
- ifr.lifr_arp_muxid = arp_muxid;
-
- if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
- {
- ioctl (ip_fd, I_PUNLINK , arp_muxid);
- ioctl (ip_fd, I_PUNLINK, ip_muxid);
- syslog (LOG_ERR, "Can't set multiplexor id");
- }
-
- snprintf(dev, dev_size, "tap%d", ppa);
- return tap_fd;
-}
-
-static int tap_open(char *ifname, int ifname_size)
-{
- char dev[10]="";
- int fd;
- if( (fd = tap_alloc(dev, sizeof(dev))) < 0 ){
- fprintf(stderr, "Cannot allocate TAP device\n");
- return -1;
- }
- pstrcpy(ifname, ifname_size, dev);
- fcntl(fd, F_SETFL, O_NONBLOCK);
- return fd;
-}
-#elif defined (_AIX)
-static int tap_open(char *ifname, int ifname_size)
-{
- fprintf (stderr, "no tap on AIX\n");
- return -1;
-}
-#else
-static int tap_open(char *ifname, int ifname_size)
-{
- struct ifreq ifr;
- int fd, ret;
-
- TFR(fd = open("/dev/net/tun", O_RDWR));
- if (fd < 0) {
- fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
- return -1;
- }
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
- if (ifname[0] != '\0')
- pstrcpy(ifr.ifr_name, IFNAMSIZ, ifname);
- else
- pstrcpy(ifr.ifr_name, IFNAMSIZ, "tap%d");
- ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
- if (ret != 0) {
- fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
- close(fd);
- return -1;
- }
- pstrcpy(ifname, ifname_size, ifr.ifr_name);
- fcntl(fd, F_SETFL, O_NONBLOCK);
- return fd;
-}
-#endif
-
-static int launch_script(const char *setup_script, const char *ifname, int fd)
-{
- sigset_t oldmask, mask;
- int pid, status;
- char *args[3];
- char **parg;
-
- sigemptyset(&mask);
- sigaddset(&mask, SIGCHLD);
- sigprocmask(SIG_BLOCK, &mask, &oldmask);
-
- /* try to launch network script */
- pid = fork();
- if (pid == 0) {
- int open_max = sysconf(_SC_OPEN_MAX), i;
-
- for (i = 0; i < open_max; i++) {
- if (i != STDIN_FILENO &&
- i != STDOUT_FILENO &&
- i != STDERR_FILENO &&
- i != fd) {
- close(i);
- }
- }
- parg = args;
- *parg++ = (char *)setup_script;
- *parg++ = (char *)ifname;
- *parg++ = NULL;
- execv(setup_script, args);
- _exit(1);
- } else if (pid > 0) {
- while (waitpid(pid, &status, 0) != pid) {
- /* loop */
- }
- sigprocmask(SIG_SETMASK, &oldmask, NULL);
-
- if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
- return 0;
- }
- }
- fprintf(stderr, "%s: could not launch network script\n", setup_script);
- return -1;
-}
-
-static TAPState *net_tap_init(VLANState *vlan, const char *model,
- const char *name, const char *ifname1,
- const char *setup_script, const char *down_script)
-{
- TAPState *s;
- int fd;
- char ifname[128];
-
- if (ifname1 != NULL)
- pstrcpy(ifname, sizeof(ifname), ifname1);
- else
- ifname[0] = '\0';
- TFR(fd = tap_open(ifname, sizeof(ifname)));
- if (fd < 0)
- return NULL;
-
- if (!setup_script || !strcmp(setup_script, "no"))
- setup_script = "";
- if (setup_script[0] != '\0' &&
- launch_script(setup_script, ifname, fd)) {
- return NULL;
- }
- s = net_tap_fd_init(vlan, model, name, fd);
- snprintf(s->vc->info_str, sizeof(s->vc->info_str),
- "ifname=%s,script=%s,downscript=%s",
- ifname, setup_script, down_script);
- if (down_script && strcmp(down_script, "no")) {
- snprintf(s->down_script, sizeof(s->down_script), "%s", down_script);
- snprintf(s->down_script_arg, sizeof(s->down_script_arg), "%s", ifname);
- }
- return s;
-}
-
-#endif /* !_WIN32 */
-
-#if defined(CONFIG_VDE)
-typedef struct VDEState {
- VLANClientState *vc;
- VDECONN *vde;
-} VDEState;
-
-static void vde_to_qemu(void *opaque)
-{
- VDEState *s = opaque;
- uint8_t buf[4096];
- int size;
-
- size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
- if (size > 0) {
- qemu_send_packet(s->vc, buf, size);
- }
-}
-
-static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
- VDEState *s = vc->opaque;
- ssize_t ret;
-
- do {
- ret = vde_send(s->vde, (const char *)buf, size, 0);
- } while (ret < 0 && errno == EINTR);
-
- return ret;
-}
-
-static void vde_cleanup(VLANClientState *vc)
-{
- VDEState *s = vc->opaque;
- qemu_set_fd_handler(vde_datafd(s->vde), NULL, NULL, NULL);
- vde_close(s->vde);
- qemu_free(s);
-}
-
-static int net_vde_init(VLANState *vlan, const char *model,
- const char *name, const char *sock,
- int port, const char *group, int mode)
-{
- VDEState *s;
- char *init_group = strlen(group) ? (char *)group : NULL;
- char *init_sock = strlen(sock) ? (char *)sock : NULL;
-
- struct vde_open_args args = {
- .port = port,
- .group = init_group,
- .mode = mode,
- };
-
- s = qemu_mallocz(sizeof(VDEState));
- s->vde = vde_open(init_sock, (char *)"QEMU", &args);
- if (!s->vde){
- free(s);
- return -1;
- }
- s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
- NULL, vde_cleanup, s);
- qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s);
- snprintf(s->vc->info_str, sizeof(s->vc->info_str), "sock=%s,fd=%d",
- sock, vde_datafd(s->vde));
- return 0;
-}
-#endif
-
-/* 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(vlan, model, name, NULL, net_socket_receive_dgram,
- 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(vlan, model, name, NULL, net_socket_receive,
- 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 = strdup(model);
- s->name = name ? 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;
+ nd = &nd_table[idx];
- 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;
- int pcap_caplen;
-} DumpState;
-
-#define PCAP_MAGIC 0xa1b2c3d4
-
-struct pcap_file_hdr {
- uint32_t magic;
- uint16_t version_major;
- uint16_t version_minor;
- int32_t thiszone;
- uint32_t sigfigs;
- uint32_t snaplen;
- uint32_t linktype;
-};
-
-struct pcap_sf_pkthdr {
- struct {
- int32_t tv_sec;
- int32_t tv_usec;
- } ts;
- uint32_t caplen;
- uint32_t len;
-};
-
-static ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
-{
- DumpState *s = vc->opaque;
- struct pcap_sf_pkthdr hdr;
- int64_t ts;
- int caplen;
+ memset(nd, 0, sizeof(*nd));
- /* Early return in case of previous error. */
- if (s->fd < 0) {
- return size;
+ if ((netdev = qemu_opt_get(opts, "netdev"))) {
+ nd->netdev = qemu_find_netdev(netdev);
+ if (!nd->netdev) {
+ qemu_error("netdev '%s' not found\n", netdev);
+ return -1;
+ }
+ } else {
+ assert(vlan);
+ nd->vlan = vlan;
}
-
- ts = muldiv64(qemu_get_clock(vm_clock), 1000000, get_ticks_per_sec());
- caplen = size > s->pcap_caplen ? s->pcap_caplen : size;
-
- hdr.ts.tv_sec = ts / 1000000;
- hdr.ts.tv_usec = ts % 1000000;
- hdr.caplen = caplen;
- hdr.len = size;
- if (write(s->fd, &hdr, sizeof(hdr)) != sizeof(hdr) ||
- write(s->fd, buf, caplen) != caplen) {
- qemu_log("-net dump write error - stop dump\n");
- close(s->fd);
- s->fd = -1;
+ if (name) {
+ nd->name = qemu_strdup(name);
}
-
- return size;
-}
-
-static void net_dump_cleanup(VLANClientState *vc)
-{
- DumpState *s = vc->opaque;
-
- close(s->fd);
- qemu_free(s);
-}
-
-static int net_dump_init(Monitor *mon, VLANState *vlan, const char *device,
- const char *name, const char *filename, int len)
-{
- struct pcap_file_hdr hdr;
- DumpState *s;
-
- s = qemu_malloc(sizeof(DumpState));
-
- s->fd = open(filename, O_CREAT | O_WRONLY | O_BINARY, 0644);
- if (s->fd < 0) {
- config_error(mon, "-net dump: can't open %s\n", filename);
- return -1;
+ if (qemu_opt_get(opts, "model")) {
+ nd->model = qemu_strdup(qemu_opt_get(opts, "model"));
+ }
+ if (qemu_opt_get(opts, "addr")) {
+ nd->devaddr = qemu_strdup(qemu_opt_get(opts, "addr"));
}
- s->pcap_caplen = len;
-
- hdr.magic = PCAP_MAGIC;
- hdr.version_major = 2;
- hdr.version_minor = 4;
- hdr.thiszone = 0;
- hdr.sigfigs = 0;
- hdr.snaplen = s->pcap_caplen;
- hdr.linktype = 1;
+ nd->macaddr[0] = 0x52;
+ nd->macaddr[1] = 0x54;
+ nd->macaddr[2] = 0x00;
+ nd->macaddr[3] = 0x12;
+ nd->macaddr[4] = 0x34;
+ nd->macaddr[5] = 0x56 + idx;
- if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
- config_error(mon, "-net dump write error: %s\n", strerror(errno));
- close(s->fd);
- qemu_free(s);
+ if (qemu_opt_get(opts, "macaddr") &&
+ net_parse_macaddr(nd->macaddr, qemu_opt_get(opts, "macaddr")) < 0) {
+ qemu_error("invalid syntax for ethernet address\n");
return -1;
}
- s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, dump_receive, NULL,
- net_dump_cleanup, s);
- snprintf(s->pcap_vc->info_str, sizeof(s->pcap_vc->info_str),
- "dump to %s (len=%d)", filename, len);
- return 0;
-}
-
-/* find or alloc a new VLAN */
-VLANState *qemu_find_vlan(int id, int allocate)
-{
- VLANState **pvlan, *vlan;
- for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
- if (vlan->id == id)
- return vlan;
- }
- if (!allocate) {
- return NULL;
+ nd->nvectors = qemu_opt_get_number(opts, "vectors", NIC_NVECTORS_UNSPECIFIED);
+ if (nd->nvectors != NIC_NVECTORS_UNSPECIFIED &&
+ (nd->nvectors < 0 || nd->nvectors > 0x7ffffff)) {
+ qemu_error("invalid # of vectors: %d\n", nd->nvectors);
+ return -1;
}
- vlan = qemu_mallocz(sizeof(VLANState));
- vlan->id = id;
- TAILQ_INIT(&vlan->send_queue);
- vlan->next = NULL;
- pvlan = &first_vlan;
- while (*pvlan != NULL)
- pvlan = &(*pvlan)->next;
- *pvlan = vlan;
- return vlan;
-}
-
-static int nic_get_free_idx(void)
-{
- int index;
- for (index = 0; index < MAX_NICS; index++)
- if (!nd_table[index].used)
- return index;
- return -1;
-}
-
-void qemu_check_nic_model(NICInfo *nd, const char *model)
-{
- const char *models[2];
-
- models[0] = model;
- models[1] = NULL;
-
- qemu_check_nic_model_list(nd, models, model);
-}
+ nd->used = 1;
+ if (vlan) {
+ nd->vlan->nb_guest_devs++;
+ }
+ nb_nics++;
+
+ return idx;
+}
+
+#define NET_COMMON_PARAMS_DESC \
+ { \
+ .name = "type", \
+ .type = QEMU_OPT_STRING, \
+ .help = "net client type (nic, tap etc.)", \
+ }, { \
+ .name = "vlan", \
+ .type = QEMU_OPT_NUMBER, \
+ .help = "vlan number", \
+ }, { \
+ .name = "name", \
+ .type = QEMU_OPT_STRING, \
+ .help = "identifier for monitor commands", \
+ }
+
+typedef int (*net_client_init_func)(QemuOpts *opts,
+ Monitor *mon,
+ const char *name,
+ VLANState *vlan);
+
+/* magic number, but compiler will warn if too small */
+#define NET_MAX_DESC 20
+
+static struct {
+ const char *type;
+ net_client_init_func init;
+ QemuOptDesc desc[NET_MAX_DESC];
+} net_client_types[] = {
+ {
+ .type = "none",
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ { /* end of list */ }
+ },
+ }, {
+ .type = "nic",
+ .init = net_init_nic,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "netdev",
+ .type = QEMU_OPT_STRING,
+ .help = "id of -netdev to connect to",
+ },
+ {
+ .name = "macaddr",
+ .type = QEMU_OPT_STRING,
+ .help = "MAC address",
+ }, {
+ .name = "model",
+ .type = QEMU_OPT_STRING,
+ .help = "device model (e1000, rtl8139, virtio etc.)",
+ }, {
+ .name = "addr",
+ .type = QEMU_OPT_STRING,
+ .help = "PCI device address",
+ }, {
+ .name = "vectors",
+ .type = QEMU_OPT_NUMBER,
+ .help = "number of MSI-x vectors, 0 to disable MSI-X",
+ },
+ { /* end of list */ }
+ },
+#ifdef CONFIG_SLIRP
+ }, {
+ .type = "user",
+ .init = net_init_slirp,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "hostname",
+ .type = QEMU_OPT_STRING,
+ .help = "client hostname reported by the builtin DHCP server",
+ }, {
+ .name = "restrict",
+ .type = QEMU_OPT_STRING,
+ .help = "isolate the guest from the host (y|yes|n|no)",
+ }, {
+ .name = "ip",
+ .type = QEMU_OPT_STRING,
+ .help = "legacy parameter, use net= instead",
+ }, {
+ .name = "net",
+ .type = QEMU_OPT_STRING,
+ .help = "IP address and optional netmask",
+ }, {
+ .name = "host",
+ .type = QEMU_OPT_STRING,
+ .help = "guest-visible address of the host",
+ }, {
+ .name = "tftp",
+ .type = QEMU_OPT_STRING,
+ .help = "root directory of the built-in TFTP server",
+ }, {
+ .name = "bootfile",
+ .type = QEMU_OPT_STRING,
+ .help = "BOOTP filename, for use with tftp=",
+ }, {
+ .name = "dhcpstart",
+ .type = QEMU_OPT_STRING,
+ .help = "the first of the 16 IPs the built-in DHCP server can assign",
+ }, {
+ .name = "dns",
+ .type = QEMU_OPT_STRING,
+ .help = "guest-visible address of the virtual nameserver",
+ }, {
+ .name = "smb",
+ .type = QEMU_OPT_STRING,
+ .help = "root directory of the built-in SMB server",
+ }, {
+ .name = "smbserver",
+ .type = QEMU_OPT_STRING,
+ .help = "IP address of the built-in SMB server",
+ }, {
+ .name = "hostfwd",
+ .type = QEMU_OPT_STRING,
+ .help = "guest port number to forward incoming TCP or UDP connections",
+ }, {
+ .name = "guestfwd",
+ .type = QEMU_OPT_STRING,
+ .help = "IP address and port to forward guest TCP connections",
+ },
+ { /* end of list */ }
+ },
+#endif
+ }, {
+ .type = "tap",
+ .init = net_init_tap,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "ifname",
+ .type = QEMU_OPT_STRING,
+ .help = "interface name",
+ },
+#ifndef _WIN32
+ {
+ .name = "fd",
+ .type = QEMU_OPT_STRING,
+ .help = "file descriptor of an already opened tap",
+ }, {
+ .name = "script",
+ .type = QEMU_OPT_STRING,
+ .help = "script to initialize the interface",
+ }, {
+ .name = "downscript",
+ .type = QEMU_OPT_STRING,
+ .help = "script to shut down the interface",
+ }, {
+ .name = "sndbuf",
+ .type = QEMU_OPT_SIZE,
+ .help = "send buffer limit"
+ }, {
+ .name = "vnet_hdr",
+ .type = QEMU_OPT_BOOL,
+ .help = "enable the IFF_VNET_HDR flag on the tap interface"
+ },
+#endif /* _WIN32 */
+ { /* end of list */ }
+ },
+ }, {
+ .type = "socket",
+ .init = net_init_socket,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "fd",
+ .type = QEMU_OPT_STRING,
+ .help = "file descriptor of an already opened socket",
+ }, {
+ .name = "listen",
+ .type = QEMU_OPT_STRING,
+ .help = "port number, and optional hostname, to listen on",
+ }, {
+ .name = "connect",
+ .type = QEMU_OPT_STRING,
+ .help = "port number, and optional hostname, to connect to",
+ }, {
+ .name = "mcast",
+ .type = QEMU_OPT_STRING,
+ .help = "UDP multicast address and port number",
+ },
+ { /* end of list */ }
+ },
+#ifdef CONFIG_VDE
+ }, {
+ .type = "vde",
+ .init = net_init_vde,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "sock",
+ .type = QEMU_OPT_STRING,
+ .help = "socket path",
+ }, {
+ .name = "port",
+ .type = QEMU_OPT_NUMBER,
+ .help = "port number",
+ }, {
+ .name = "group",
+ .type = QEMU_OPT_STRING,
+ .help = "group owner of socket",
+ }, {
+ .name = "mode",
+ .type = QEMU_OPT_NUMBER,
+ .help = "permissions for socket",
+ },
+ { /* end of list */ }
+ },
+#endif
+ }, {
+ .type = "dump",
+ .init = net_init_dump,
+ .desc = {
+ NET_COMMON_PARAMS_DESC,
+ {
+ .name = "len",
+ .type = QEMU_OPT_SIZE,
+ .help = "per-packet size limit (64k default)",
+ }, {
+ .name = "file",
+ .type = QEMU_OPT_STRING,
+ .help = "dump file path (default is qemu-vlan0.pcap)",
+ },
+ { /* end of list */ }
+ },
+ },
+ { /* end of list */ }
+};
-void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
- const char *default_model)
+int net_client_init(Monitor *mon, QemuOpts *opts, int is_netdev)
{
- int i, exit_status = 0;
-
- if (!nd->model)
- nd->model = strdup(default_model);
-
- if (strcmp(nd->model, "?") != 0) {
- for (i = 0 ; models[i]; i++)
- if (strcmp(nd->model, models[i]) == 0)
- return;
-
- fprintf(stderr, "qemu: Unsupported NIC model: %s\n", nd->model);
- exit_status = 1;
- }
-
- fprintf(stderr, "qemu: Supported NIC models: ");
- for (i = 0 ; models[i]; i++)
- fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
-
- exit(exit_status);
-}
+ const char *name;
+ const char *type;
+ int i;
-static int net_handle_fd_param(Monitor *mon, const char *param)
-{
- if (!qemu_isdigit(param[0])) {
- int fd;
+ type = qemu_opt_get(opts, "type");
- fd = monitor_get_fd(mon, param);
- if (fd == -1) {
- config_error(mon, "No file descriptor named %s found", param);
+ if (!is_netdev) {
+ if (!type) {
+ qemu_error("No type specified for -net\n");
return -1;
}
-
- return fd;
} else {
- return strtol(param, NULL, 0);
- }
-}
-
-int net_client_init(Monitor *mon, const char *device, const char *p)
-{
- char buf[1024];
- int vlan_id, ret;
- VLANState *vlan;
- char *name = NULL;
-
- vlan_id = 0;
- if (get_param_value(buf, sizeof(buf), "vlan", p)) {
- vlan_id = strtol(buf, NULL, 0);
- }
- vlan = qemu_find_vlan(vlan_id, 1);
-
- if (get_param_value(buf, sizeof(buf), "name", p)) {
- name = qemu_strdup(buf);
- }
- if (!strcmp(device, "nic")) {
- static const char * const nic_params[] = {
- "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL
- };
- NICInfo *nd;
- uint8_t *macaddr;
- int idx = nic_get_free_idx();
-
- if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
- ret = -1;
- goto out;
- }
- if (idx == -1 || nb_nics >= MAX_NICS) {
- config_error(mon, "Too Many NICs\n");
- ret = -1;
- goto out;
- }
- nd = &nd_table[idx];
- macaddr = nd->macaddr;
- macaddr[0] = 0x52;
- macaddr[1] = 0x54;
- macaddr[2] = 0x00;
- macaddr[3] = 0x12;
- macaddr[4] = 0x34;
- macaddr[5] = 0x56 + idx;
-
- if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
- if (parse_macaddr(macaddr, buf) < 0) {
- config_error(mon, "invalid syntax for ethernet address\n");
- ret = -1;
- goto out;
- }
- }
- if (get_param_value(buf, sizeof(buf), "model", p)) {
- nd->model = strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "addr", p)) {
- nd->devaddr = strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "id", p)) {
- nd->id = strdup(buf);
- }
- nd->nvectors = NIC_NVECTORS_UNSPECIFIED;
- if (get_param_value(buf, sizeof(buf), "vectors", p)) {
- char *endptr;
- long vectors = strtol(buf, &endptr, 0);
- if (*endptr) {
- config_error(mon, "invalid syntax for # of vectors\n");
- ret = -1;
- goto out;
- }
- if (vectors < 0 || vectors > 0x7ffffff) {
- config_error(mon, "invalid # of vectors\n");
- ret = -1;
- goto out;
- }
- nd->nvectors = vectors;
- }
- nd->vlan = vlan;
- nd->name = name;
- nd->used = 1;
- name = NULL;
- nb_nics++;
- vlan->nb_guest_devs++;
- ret = idx;
- } else
- if (!strcmp(device, "none")) {
- if (*p != '\0') {
- config_error(mon, "'none' takes no parameters\n");
- ret = -1;
- goto out;
+ if (!type) {
+ qemu_error("No type specified for -netdev\n");
+ return -1;
}
- /* does nothing. It is needed to signal that no network cards
- are wanted */
- ret = 0;
- } else
+
+ if (strcmp(type, "tap") != 0 &&
#ifdef CONFIG_SLIRP
- if (!strcmp(device, "user")) {
- static const char * const slirp_params[] = {
- "vlan", "name", "hostname", "restrict", "ip", "net", "host",
- "tftp", "bootfile", "dhcpstart", "dns", "smb", "smbserver",
- "hostfwd", "guestfwd", NULL
- };
- struct slirp_config_str *config;
- int restricted = 0;
- char *vnet = NULL;
- char *vhost = NULL;
- char *vhostname = NULL;
- char *tftp_export = NULL;
- char *bootfile = NULL;
- char *vdhcp_start = NULL;
- char *vnamesrv = NULL;
- char *smb_export = NULL;
- char *vsmbsrv = NULL;
- const char *q;
-
- if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
- ret = -1;
- goto out;
- }
- if (get_param_value(buf, sizeof(buf), "ip", p)) {
- int vnet_buflen = strlen(buf) + strlen("/24") + 1;
- /* emulate legacy parameter */
- vnet = qemu_malloc(vnet_buflen);
- pstrcpy(vnet, vnet_buflen, buf);
- pstrcat(vnet, vnet_buflen, "/24");
- }
- if (get_param_value(buf, sizeof(buf), "net", p)) {
- vnet = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "host", p)) {
- vhost = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "hostname", p)) {
- vhostname = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "restrict", p)) {
- restricted = (buf[0] == 'y') ? 1 : 0;
- }
- if (get_param_value(buf, sizeof(buf), "dhcpstart", p)) {
- vdhcp_start = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "dns", p)) {
- vnamesrv = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "tftp", p)) {
- tftp_export = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "bootfile", p)) {
- bootfile = qemu_strdup(buf);
- }
- if (get_param_value(buf, sizeof(buf), "smb", p)) {
- smb_export = qemu_strdup(buf);
- if (get_param_value(buf, sizeof(buf), "smbserver", p)) {
- vsmbsrv = qemu_strdup(buf);
- }
- }
- q = p;
- while (1) {
- config = qemu_malloc(sizeof(*config));
- if (!get_next_param_value(config->str, sizeof(config->str),
- "hostfwd", &q)) {
- break;
- }
- config->flags = SLIRP_CFG_HOSTFWD;
- config->next = slirp_configs;
- slirp_configs = config;
- config = NULL;
- }
- q = p;
- while (1) {
- config = qemu_malloc(sizeof(*config));
- if (!get_next_param_value(config->str, sizeof(config->str),
- "guestfwd", &q)) {
- break;
- }
- config->flags = 0;
- config->next = slirp_configs;
- slirp_configs = config;
- config = NULL;
- }
- qemu_free(config);
- vlan->nb_host_devs++;
- ret = net_slirp_init(mon, vlan, device, name, restricted, vnet, vhost,
- vhostname, tftp_export, bootfile, vdhcp_start,
- vnamesrv, smb_export, vsmbsrv);
- qemu_free(vnet);
- qemu_free(vhost);
- qemu_free(vhostname);
- qemu_free(tftp_export);
- qemu_free(bootfile);
- qemu_free(vdhcp_start);
- qemu_free(vnamesrv);
- qemu_free(smb_export);
- qemu_free(vsmbsrv);
- } else if (!strcmp(device, "channel")) {
- if (TAILQ_EMPTY(&slirp_stacks)) {
- struct slirp_config_str *config;
-
- config = qemu_malloc(sizeof(*config));
- pstrcpy(config->str, sizeof(config->str), p);
- config->flags = SLIRP_CFG_LEGACY;
- config->next = slirp_configs;
- slirp_configs = config;
- } else {
- slirp_guestfwd(TAILQ_FIRST(&slirp_stacks), mon, p, 1);
- }
- ret = 0;
- } else
+ strcmp(type, "user") != 0 &&
+#endif
+#ifdef CONFIG_VDE
+ strcmp(type, "vde") != 0 &&
#endif
-#ifdef _WIN32
- if (!strcmp(device, "tap")) {
- static const char * const tap_params[] = {
- "vlan", "name", "ifname", NULL
- };
- char ifname[64];
-
- if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
- ret = -1;
- goto out;
+ strcmp(type, "socket") != 0) {
+ qemu_error("The '%s' network backend type is not valid with -netdev\n",
+ type);
+ return -1;
}
- if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
- config_error(mon, "tap: no interface name\n");
- ret = -1;
- goto out;
+
+ if (qemu_opt_get(opts, "vlan")) {
+ qemu_error("The 'vlan' parameter is not valid with -netdev\n");
+ return -1;
}
- vlan->nb_host_devs++;
- ret = tap_win32_init(vlan, device, name, ifname);
- } else
-#elif defined (_AIX)
-#else
- if (!strcmp(device, "tap")) {
- char ifname[64], chkbuf[64];
- char setup_script[1024], down_script[1024];
- TAPState *s;
- int fd;
- vlan->nb_host_devs++;
- if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
- static const char * const fd_params[] = {
- "vlan", "name", "fd", "sndbuf", NULL
- };
- ret = -1;
- if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- goto out;
- }
- fd = net_handle_fd_param(mon, buf);
- if (fd == -1) {
- goto out;
- }
- fcntl(fd, F_SETFL, O_NONBLOCK);
- s = net_tap_fd_init(vlan, device, name, fd);
- if (!s) {
- close(fd);
- }
- } else {
- static const char * const tap_params[] = {
- "vlan", "name", "ifname", "script", "downscript", "sndbuf", NULL
- };
- if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- ret = -1;
- goto out;
- }
- if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
- ifname[0] = '\0';
- }
- if (get_param_value(setup_script, sizeof(setup_script), "script", p) == 0) {
- pstrcpy(setup_script, sizeof(setup_script), DEFAULT_NETWORK_SCRIPT);
- }
- if (get_param_value(down_script, sizeof(down_script), "downscript", p) == 0) {
- pstrcpy(down_script, sizeof(down_script), DEFAULT_NETWORK_DOWN_SCRIPT);
- }
- s = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
+ if (qemu_opt_get(opts, "name")) {
+ qemu_error("The 'name' parameter is not valid with -netdev\n");
+ return -1;
}
- if (s != NULL) {
- const char *sndbuf_str = NULL;
- if (get_param_value(buf, sizeof(buf), "sndbuf", p)) {
- sndbuf_str = buf;
- }
- tap_set_sndbuf(s, sndbuf_str, mon);
- ret = 0;
- } else {
- ret = -1;
+ if (!qemu_opts_id(opts)) {
+ qemu_error("The id= parameter is required with -netdev\n");
+ return -1;
}
- } else
-#endif
- if (!strcmp(device, "socket")) {
- char chkbuf[64];
- if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
- static const char * const fd_params[] = {
- "vlan", "name", "fd", NULL
- };
- int fd;
- ret = -1;
- if (check_params(chkbuf, sizeof(chkbuf), fd_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- goto out;
- }
- fd = net_handle_fd_param(mon, buf);
- if (fd == -1) {
- goto out;
- }
- if (!net_socket_fd_init(vlan, device, name, fd, 1)) {
- close(fd);
- goto out;
- }
- ret = 0;
- } else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
- static const char * const listen_params[] = {
- "vlan", "name", "listen", NULL
- };
- if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- ret = -1;
- goto out;
- }
- ret = net_socket_listen_init(vlan, device, name, buf);
- } else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
- static const char * const connect_params[] = {
- "vlan", "name", "connect", NULL
- };
- if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- ret = -1;
- goto out;
+ }
+
+ name = qemu_opts_id(opts);
+ if (!name) {
+ name = qemu_opt_get(opts, "name");
+ }
+
+ for (i = 0; net_client_types[i].type != NULL; i++) {
+ if (!strcmp(net_client_types[i].type, type)) {
+ VLANState *vlan = NULL;
+
+ if (qemu_opts_validate(opts, &net_client_types[i].desc[0]) == -1) {
+ return -1;
}
- ret = net_socket_connect_init(vlan, device, name, buf);
- } else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
- static const char * const mcast_params[] = {
- "vlan", "name", "mcast", NULL
- };
- if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
- ret = -1;
- goto out;
+
+ /* Do not add to a vlan if it's a -netdev or a nic with a
+ * netdev= parameter. */
+ if (!(is_netdev ||
+ (strcmp(type, "nic") == 0 && qemu_opt_get(opts, "netdev")))) {
+ vlan = qemu_find_vlan(qemu_opt_get_number(opts, "vlan", 0), 1);
}
- ret = net_socket_mcast_init(vlan, device, name, buf);
- } else {
- config_error(mon, "Unknown socket options: %s\n", p);
- ret = -1;
- goto out;
- }
- vlan->nb_host_devs++;
- } else
-#ifdef CONFIG_VDE
- if (!strcmp(device, "vde")) {
- static const char * const vde_params[] = {
- "vlan", "name", "sock", "port", "group", "mode", NULL
- };
- char vde_sock[1024], vde_group[512];
- int vde_port, vde_mode;
-
- if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
- config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
- ret = -1;
- goto out;
- }
- vlan->nb_host_devs++;
- if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
- vde_sock[0] = '\0';
- }
- if (get_param_value(buf, sizeof(buf), "port", p) > 0) {
- vde_port = strtol(buf, NULL, 10);
- } else {
- vde_port = 0;
- }
- if (get_param_value(vde_group, sizeof(vde_group), "group", p) <= 0) {
- vde_group[0] = '\0';
- }
- if (get_param_value(buf, sizeof(buf), "mode", p) > 0) {
- vde_mode = strtol(buf, NULL, 8);
- } else {
- vde_mode = 0700;
- }
- ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
- } else
-#endif
- if (!strcmp(device, "dump")) {
- int len = 65536;
- if (get_param_value(buf, sizeof(buf), "len", p) > 0) {
- len = strtol(buf, NULL, 0);
- }
- if (!get_param_value(buf, sizeof(buf), "file", p)) {
- snprintf(buf, sizeof(buf), "qemu-vlan%d.pcap", vlan_id);
+ if (net_client_types[i].init) {
+ return net_client_types[i].init(opts, mon, name, vlan);
+ } else {
+ return 0;
+ }
}
- ret = net_dump_init(mon, vlan, device, name, buf, len);
- } else {
- config_error(mon, "Unknown network device: %s\n", device);
- ret = -1;
- goto out;
}
- if (ret < 0) {
- config_error(mon, "Could not initialize device '%s'\n", device);
- }
-out:
- qemu_free(name);
- return ret;
+
+ qemu_error("Invalid -net type '%s'\n", type);
+ return -1;
}
void net_client_uninit(NICInfo *nd)
{
- nd->vlan->nb_guest_devs--;
+ if (nd->vlan) {
+ nd->vlan->nb_guest_devs--;
+ }
nb_nics--;
+
+ qemu_free(nd->model);
+ qemu_free(nd->name);
+ qemu_free(nd->devaddr);
+
nd->used = 0;
- free((void *)nd->model);
}
static int net_host_check_device(const char *device)
void net_host_device_add(Monitor *mon, const QDict *qdict)
{
const char *device = qdict_get_str(qdict, "device");
- const char *opts = qdict_get_try_str(qdict, "opts");
+ const char *opts_str = qdict_get_try_str(qdict, "opts");
+ QemuOpts *opts;
if (!net_host_check_device(device)) {
monitor_printf(mon, "invalid host network device %s\n", device);
return;
}
- if (net_client_init(mon, device, opts ? opts : "") < 0) {
+
+ opts = qemu_opts_parse(&qemu_net_opts, opts_str ? opts_str : "", NULL);
+ if (!opts) {
+ monitor_printf(mon, "parsing network options '%s' failed\n",
+ opts_str ? opts_str : "");
+ return;
+ }
+
+ qemu_opt_set(opts, "type", device);
+
+ if (net_client_init(mon, opts, 0) < 0) {
monitor_printf(mon, "adding host network device %s failed\n", device);
}
}
qemu_del_vlan_client(vc);
}
-int net_client_parse(const char *str)
-{
- const char *p;
- char *q;
- char device[64];
-
- p = str;
- q = device;
- while (*p != '\0' && *p != ',') {
- if ((q - device) < sizeof(device) - 1)
- *q++ = *p;
- p++;
- }
- *q = '\0';
- if (*p == ',')
- p++;
-
- return net_client_init(NULL, device, p);
-}
-
void net_set_boot_mask(int net_boot_mask)
{
int i;
void do_info_network(Monitor *mon)
{
VLANState *vlan;
- VLANClientState *vc;
- for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
+ QTAILQ_FOREACH(vlan, &vlans, next) {
+ VLANClientState *vc;
+
monitor_printf(mon, "VLAN %d devices:\n", vlan->id);
- for(vc = vlan->first_client; vc != NULL; vc = vc->next)
+
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
monitor_printf(mon, " %s: %s\n", vc->name, vc->info_str);
+ }
}
}
const char *name = qdict_get_str(qdict, "name");
const char *up_or_down = qdict_get_str(qdict, "up_or_down");
- for (vlan = first_vlan; vlan != NULL; vlan = vlan->next)
- for (vc = vlan->first_client; vc != NULL; vc = vc->next)
- if (strcmp(vc->name, name) == 0)
+ QTAILQ_FOREACH(vlan, &vlans, next) {
+ QTAILQ_FOREACH(vc, &vlan->clients, next) {
+ if (strcmp(vc->name, name) == 0) {
goto done;
+ }
+ }
+ }
done:
if (!vc) {
monitor_printf(mon, "invalid link status '%s'; only 'up' or 'down' "
"valid\n", up_or_down);
- if (vc->link_status_changed)
- vc->link_status_changed(vc);
+ if (vc->info->link_status_changed) {
+ vc->info->link_status_changed(vc);
+ }
}
void net_cleanup(void)
{
VLANState *vlan;
+ VLANClientState *vc, *next_vc;
- /* close network clients */
- for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
- VLANClientState *vc = vlan->first_client;
-
- while (vc) {
- VLANClientState *next = vc->next;
-
+ QTAILQ_FOREACH(vlan, &vlans, next) {
+ QTAILQ_FOREACH_SAFE(vc, &vlan->clients, next, next_vc) {
qemu_del_vlan_client(vc);
-
- vc = next;
}
}
+
+ QTAILQ_FOREACH_SAFE(vc, &non_vlan_clients, next, next_vc) {
+ qemu_del_vlan_client(vc);
+ }
}
-void net_client_check(void)
+static void net_check_clients(void)
{
VLANState *vlan;
- for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
+ QTAILQ_FOREACH(vlan, &vlans, next) {
if (vlan->nb_guest_devs == 0 && vlan->nb_host_devs == 0)
continue;
if (vlan->nb_guest_devs == 0)
vlan->id);
}
}
+
+static int net_init_client(QemuOpts *opts, void *dummy)
+{
+ if (net_client_init(NULL, opts, 0) < 0)
+ return -1;
+ return 0;
+}
+
+static int net_init_netdev(QemuOpts *opts, void *dummy)
+{
+ return net_client_init(NULL, opts, 1);
+}
+
+int net_init_clients(void)
+{
+ if (QTAILQ_EMPTY(&qemu_net_opts.head)) {
+ /* if no clients, we use a default config */
+ qemu_opts_set(&qemu_net_opts, NULL, "type", "nic");
+#ifdef CONFIG_SLIRP
+ qemu_opts_set(&qemu_net_opts, NULL, "type", "user");
+#endif
+ }
+
+ QTAILQ_INIT(&vlans);
+ QTAILQ_INIT(&non_vlan_clients);
+
+ if (qemu_opts_foreach(&qemu_netdev_opts, net_init_netdev, NULL, 1) == -1)
+ return -1;
+
+ if (qemu_opts_foreach(&qemu_net_opts, net_init_client, NULL, 1) == -1) {
+ return -1;
+ }
+
+ net_check_clients();
+
+ return 0;
+}
+
+int net_client_parse(QemuOptsList *opts_list, const char *optarg)
+{
+#if defined(CONFIG_SLIRP)
+ int ret;
+ if (net_slirp_parse_legacy(opts_list, optarg, &ret)) {
+ return ret;
+ }
+#endif
+
+ if (!qemu_opts_parse(opts_list, optarg, "type")) {
+ return -1;
+ }
+
+ return 0;
+}
projects / qemu.git / blobdiff