#include "qemu-char.h"
#include "audio/audio.h"
#include "qemu_socket.h"
+#include "qemu-log.h"
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
return 0;
}
-void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
+static void
+qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
{
- VLANState *vlan = vc1->vlan;
VLANClientState *vc;
- if (vc1->link_down)
+ for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
+ if (vc != sender && !vc->link_down) {
+ vc->fd_read(vc->opaque, buf, size);
+ }
+ }
+}
+
+void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
+{
+ VLANState *vlan = vc->vlan;
+ VLANPacket *packet;
+
+ if (vc->link_down)
return;
#ifdef DEBUG_NET
printf("vlan %d send:\n", vlan->id);
hex_dump(stdout, buf, size);
#endif
- for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
- if (vc != vc1 && !vc->link_down) {
- vc->fd_read(vc->opaque, buf, size);
+ if (vlan->delivering) {
+ packet = qemu_malloc(sizeof(VLANPacket) + size);
+ packet->next = vlan->send_queue;
+ packet->sender = vc;
+ packet->size = size;
+ memcpy(packet->data, buf, size);
+ vlan->send_queue = packet;
+ } else {
+ vlan->delivering = 1;
+ qemu_deliver_packet(vc, buf, size);
+ while ((packet = vlan->send_queue) != NULL) {
+ qemu_deliver_packet(packet->sender, packet->data, packet->size);
+ vlan->send_queue = packet->next;
+ qemu_free(packet);
}
+ vlan->delivering = 0;
}
}
slirp_input(buf, size);
}
+static int slirp_in_use;
+
+static void net_slirp_cleanup(VLANClientState *vc)
+{
+ slirp_in_use = 0;
+}
+
static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
{
+ if (slirp_in_use) {
+ /* slirp only supports a single instance so far */
+ return -1;
+ }
if (!slirp_inited) {
slirp_inited = 1;
slirp_init(slirp_restrict, slirp_ip);
}
slirp_vc = qemu_new_vlan_client(vlan, model, name,
- slirp_receive, NULL, NULL, NULL);
+ slirp_receive, NULL, net_slirp_cleanup, NULL);
slirp_vc->info_str[0] = '\0';
+ slirp_in_use = 1;
return 0;
}
-void net_slirp_redir(const char *redir_str)
+void net_slirp_redir(Monitor *mon, const char *redir_str)
{
int is_udp;
char buf[256], *r;
- const char *p;
+ const char *p, *errmsg;
struct in_addr guest_addr;
int host_port, guest_port;
p = redir_str;
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
- goto fail;
- if (!strcmp(buf, "tcp")) {
+ goto fail_syntax;
+ if (!strcmp(buf, "tcp") || buf[0] == '\0') {
is_udp = 0;
} else if (!strcmp(buf, "udp")) {
is_udp = 1;
} else {
- goto fail;
+ goto fail_syntax;
}
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
- goto fail;
+ goto fail_syntax;
host_port = strtol(buf, &r, 0);
if (r == buf)
- goto fail;
+ goto fail_syntax;
if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
- goto fail;
+ goto fail_syntax;
if (buf[0] == '\0') {
pstrcpy(buf, sizeof(buf), "10.0.2.15");
}
if (!inet_aton(buf, &guest_addr))
- goto fail;
+ goto fail_syntax;
guest_port = strtol(p, &r, 0);
if (r == p)
- goto fail;
+ goto fail_syntax;
if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
- fprintf(stderr, "qemu: could not set up redirection\n");
- exit(1);
+ errmsg = "could not set up redirection\n";
+ goto fail;
}
return;
+
+ fail_syntax:
+ errmsg = "invalid redirection format\n";
fail:
- fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
- exit(1);
+ if (mon) {
+ monitor_printf(mon, "%s", errmsg);
+ } else {
+ fprintf(stderr, "qemu: %s", errmsg);
+ exit(1);
+ }
}
#ifndef _WIN32
uint8_t buf[4096];
int size;
- size = vde_recv(s->vde, buf, sizeof(buf), 0);
+ size = vde_recv(s->vde, (char *)buf, sizeof(buf), 0);
if (size > 0) {
qemu_send_packet(s->vc, buf, size);
}
VDEState *s = opaque;
int ret;
for(;;) {
- ret = vde_send(s->vde, buf, size, 0);
+ ret = vde_send(s->vde, (const char *)buf, size, 0);
if (ret < 0 && errno == EINTR) {
} else {
break;
};
s = qemu_mallocz(sizeof(VDEState));
- s->vde = vde_open(init_sock, "QEMU", &args);
+ s->vde = vde_open(init_sock, (char *)"QEMU", &args);
if (!s->vde){
free(s);
return -1;
}
+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 void dump_receive(void *opaque, const uint8_t *buf, int size)
+{
+ DumpState *s = opaque;
+ struct pcap_sf_pkthdr hdr;
+ int64_t ts;
+ int caplen;
+
+ /* Early return in case of previous error. */
+ if (s->fd < 0) {
+ return;
+ }
+
+ ts = muldiv64(qemu_get_clock(vm_clock), 1000000, 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;
+ }
+}
+
+static void net_dump_cleanup(VLANClientState *vc)
+{
+ DumpState *s = vc->opaque;
+
+ close(s->fd);
+ qemu_free(s);
+}
+
+static int net_dump_init(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, 0644);
+ if (s->fd < 0) {
+ fprintf(stderr, "-net dump: can't open %s\n", filename);
+ return -1;
+ }
+
+ 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;
+
+ if (write(s->fd, &hdr, sizeof(hdr)) < sizeof(hdr)) {
+ perror("-net dump write error");
+ close(s->fd);
+ qemu_free(s);
+ return -1;
+ }
+
+ s->pcap_vc = qemu_new_vlan_client(vlan, device, name, 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)
{
uint8_t *macaddr;
int idx = nic_get_free_idx();
- if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
+ if (check_params(nic_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
static const char * const slirp_params[] = {
"vlan", "name", "hostname", "restrict", "ip", NULL
};
- if (check_params(buf, sizeof(buf), slirp_params, p) < 0) {
+ if (check_params(slirp_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
};
char ifname[64];
- if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
+ if (check_params(tap_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
int fd;
vlan->nb_host_devs++;
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
- if (check_params(buf, sizeof(buf), fd_params, p) < 0) {
+ if (check_params(fd_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
static const char * const tap_params[] = {
"vlan", "name", "ifname", "script", "downscript", NULL
};
- if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
+ if (check_params(tap_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
if (!strcmp(device, "socket")) {
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
int fd;
- if (check_params(buf, sizeof(buf), fd_params, p) < 0) {
+ if (check_params(fd_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
static const char * const listen_params[] = {
"vlan", "name", "listen", NULL
};
- if (check_params(buf, sizeof(buf), listen_params, p) < 0) {
+ if (check_params(listen_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
static const char * const connect_params[] = {
"vlan", "name", "connect", NULL
};
- if (check_params(buf, sizeof(buf), connect_params, p) < 0) {
+ if (check_params(connect_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
static const char * const mcast_params[] = {
"vlan", "name", "mcast", NULL
};
- if (check_params(buf, sizeof(buf), mcast_params, p) < 0) {
+ if (check_params(mcast_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
char vde_sock[1024], vde_group[512];
int vde_port, vde_mode;
- if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
+ if (check_params(vde_params, p) < 0) {
fprintf(stderr, "qemu: invalid parameter '%s' in '%s'\n",
buf, p);
return -1;
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);
+ }
+ ret = net_dump_init(vlan, device, name, buf, len);
+ } else {
fprintf(stderr, "Unknown network device: %s\n", device);
ret = -1;
goto out;
static int net_host_check_device(const char *device)
{
int i;
- const char *valid_param_list[] = { "tap", "socket"
+ const char *valid_param_list[] = { "tap", "socket", "dump"
#ifdef CONFIG_SLIRP
,"user"
#endif
monitor_printf(mon, "invalid host network device %s\n", device);
return;
}
- net_client_init(device, opts);
+ if (net_client_init(device, opts ? opts : "") < 0) {
+ monitor_printf(mon, "adding host network device %s failed\n", device);
+ }
}
void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
projects / qemu / blobdiff