const char *name,
IOReadHandler *fd_read,
IOCanRWHandler *fd_can_read,
+ NetCleanup *cleanup,
void *opaque)
{
VLANClientState *vc, **pvc;
vc = qemu_mallocz(sizeof(VLANClientState));
- if (!vc)
- return NULL;
vc->model = strdup(model);
if (name)
vc->name = strdup(name);
vc->name = assign_name(vc, model);
vc->fd_read = fd_read;
vc->fd_can_read = fd_can_read;
+ vc->cleanup = cleanup;
vc->opaque = opaque;
vc->vlan = vlan;
while (*pvc != NULL)
if (*pvc == vc) {
*pvc = vc->next;
+ if (vc->cleanup) {
+ vc->cleanup(vc);
+ }
free(vc->name);
free(vc->model);
- free(vc);
+ qemu_free(vc);
break;
} else
pvc = &(*pvc)->next;
}
+VLANClientState *qemu_find_vlan_client(VLANState *vlan, void *opaque)
+{
+ VLANClientState **pvc = &vlan->first_client;
+
+ while (*pvc != NULL)
+ if ((*pvc)->opaque == opaque)
+ return *pvc;
+ else
+ pvc = &(*pvc)->next;
+
+ return NULL;
+}
+
int qemu_can_send_packet(VLANClientState *vc1)
{
VLANState *vlan = vc1->vlan;
VLANState *vlan = vc1->vlan;
VLANClientState *vc;
+ if (vc1->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) {
+ if (vc != vc1 && !vc->link_down) {
vc->fd_read(vc->opaque, buf, size);
}
}
return offset;
}
+static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
+{
+ size_t offset = 0;
+ int i;
+
+ for (i = 0; i < iovcnt; i++)
+ offset += iov[i].iov_len;
+ return offset;
+}
+
ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov,
int iovcnt)
{
VLANClientState *vc;
ssize_t max_len = 0;
+ if (vc1->link_down)
+ return calc_iov_length(iov, iovcnt);
+
for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
ssize_t len = 0;
if (vc == vc1)
continue;
+ if (vc->link_down)
+ len = calc_iov_length(iov, iovcnt);
if (vc->fd_readv)
len = vc->fd_readv(vc->opaque, iov, iovcnt);
else if (vc->fd_read)
slirp_init(slirp_restrict, slirp_ip);
}
slirp_vc = qemu_new_vlan_client(vlan, model, name,
- slirp_receive, NULL, NULL);
+ slirp_receive, NULL, NULL, NULL);
slirp_vc->info_str[0] = '\0';
return 0;
}
slirp_stats();
}
+struct VMChannel {
+ CharDriverState *hd;
+ int port;
+} *vmchannels;
+
+static int vmchannel_can_read(void *opaque)
+{
+ struct VMChannel *vmc = (struct VMChannel*)opaque;
+ return slirp_socket_can_recv(4, vmc->port);
+}
+
+static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
+{
+ struct VMChannel *vmc = (struct VMChannel*)opaque;
+ slirp_socket_recv(4, vmc->port, buf, size);
+}
+
#endif /* CONFIG_SLIRP */
#if !defined(_WIN32)
VLANClientState *vc;
int fd;
char down_script[1024];
+ char down_script_arg[128];
} TAPState;
-#ifdef HAVE_IOVEC
+static int launch_script(const char *setup_script, const char *ifname, int fd);
+
static ssize_t tap_receive_iov(void *opaque, const struct iovec *iov,
int iovcnt)
{
return len;
}
-#endif
static void tap_receive(void *opaque, const uint8_t *buf, int size)
{
}
}
+static void tap_cleanup(VLANClientState *vc)
+{
+ TAPState *s = vc->opaque;
+
+ if (s->down_script[0])
+ launch_script(s->down_script, s->down_script_arg, s->fd);
+
+ qemu_set_fd_handler(s->fd, NULL, NULL, NULL);
+ close(s->fd);
+ qemu_free(s);
+}
+
/* fd support */
static TAPState *net_tap_fd_init(VLANState *vlan,
TAPState *s;
s = qemu_mallocz(sizeof(TAPState));
- if (!s)
- return NULL;
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive, NULL, s);
-#ifdef HAVE_IOVEC
+ s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
+ NULL, tap_cleanup, s);
s->vc->fd_readv = tap_receive_iov;
-#endif
qemu_set_fd_handler(s->fd, tap_send, NULL, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
return s;
return -1;
}
s = net_tap_fd_init(vlan, model, name, fd);
- if (!s)
- return -1;
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"))
+ 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 0;
}
}
}
+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)
};
s = qemu_mallocz(sizeof(VDEState));
- if (!s)
- return -1;
s->vde = vde_open(init_sock, "QEMU", &args);
if (!s->vde){
free(s);
return -1;
}
- s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu, NULL, s);
+ s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
+ 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));
VLANClientState *vc;
int fd;
int state; /* 0 = getting length, 1 = getting data */
- int index;
- int packet_len;
+ 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;
static void net_socket_send(void *opaque)
{
NetSocketState *s = opaque;
- int l, size, err;
+ int size, err;
+ unsigned l;
uint8_t buf1[4096];
const uint8_t *buf;
l = s->packet_len - s->index;
if (l > size)
l = size;
- memcpy(s->buf + s->index, buf, l);
+ 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;
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,
}
s = qemu_mallocz(sizeof(NetSocketState));
- if (!s)
- return NULL;
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram, NULL, s);
+ s->vc = qemu_new_vlan_client(vlan, model, name, 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 */
{
NetSocketState *s;
s = qemu_mallocz(sizeof(NetSocketState));
- if (!s)
- return NULL;
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name,
- net_socket_receive, NULL, s);
+ s->vc = qemu_new_vlan_client(vlan, model, name, 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) {
return -1;
s = qemu_mallocz(sizeof(NetSocketListenState));
- if (!s)
- return -1;
fd = socket(PF_INET, SOCK_STREAM, 0);
if (fd < 0) {
}
s->vlan = vlan;
s->model = strdup(model);
- s->name = strdup(name);
+ s->name = name ? strdup(name) : NULL;
s->fd = fd;
qemu_set_fd_handler(fd, net_socket_accept, NULL, s);
return 0;
return vlan;
}
vlan = qemu_mallocz(sizeof(VLANState));
- if (!vlan)
- return NULL;
vlan->id = id;
vlan->next = NULL;
pvlan = &first_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);
+}
+
+void qemu_check_nic_model_list(NICInfo *nd, const char * const *models,
+ const char *default_model)
+{
+ 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);
+}
+
int net_client_init(const char *device, const char *p)
{
char buf[1024];
vlan_id = strtol(buf, NULL, 0);
}
vlan = qemu_find_vlan(vlan_id);
- if (!vlan) {
- fprintf(stderr, "Could not create vlan %d\n", vlan_id);
- return -1;
- }
+
if (get_param_value(buf, sizeof(buf), "name", p)) {
name = strdup(buf);
}
if (!strcmp(device, "nic")) {
NICInfo *nd;
uint8_t *macaddr;
+ int idx = nic_get_free_idx();
- if (nb_nics >= MAX_NICS) {
+ if (idx == -1 || nb_nics >= MAX_NICS) {
fprintf(stderr, "Too Many NICs\n");
- return -1;
+ ret = -1;
+ goto out;
}
- nd = &nd_table[nb_nics];
+ 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 + nb_nics;
+ macaddr[5] = 0x56 + idx;
if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
if (parse_macaddr(macaddr, buf) < 0) {
fprintf(stderr, "invalid syntax for ethernet address\n");
- return -1;
+ ret = -1;
+ goto out;
}
}
if (get_param_value(buf, sizeof(buf), "model", p)) {
}
nd->vlan = vlan;
nd->name = name;
+ nd->used = 1;
name = NULL;
nb_nics++;
vlan->nb_guest_devs++;
- ret = 0;
+ ret = idx;
} else
if (!strcmp(device, "none")) {
/* does nothing. It is needed to signal that no network cards
}
vlan->nb_host_devs++;
ret = net_slirp_init(vlan, device, name);
+ } else if (!strcmp(device, "channel")) {
+ long port;
+ char name[20], *devname;
+ struct VMChannel *vmc;
+
+ port = strtol(p, &devname, 10);
+ devname++;
+ if (port < 1 || port > 65535) {
+ fprintf(stderr, "vmchannel wrong port number\n");
+ ret = -1;
+ goto out;
+ }
+ vmc = malloc(sizeof(struct VMChannel));
+ snprintf(name, 20, "vmchannel%ld", port);
+ vmc->hd = qemu_chr_open(name, devname, NULL);
+ if (!vmc->hd) {
+ fprintf(stderr, "qemu: could not open vmchannel device"
+ "'%s'\n", devname);
+ ret = -1;
+ goto out;
+ }
+ vmc->port = port;
+ slirp_add_exec(3, vmc->hd, 4, port);
+ qemu_chr_add_handlers(vmc->hd, vmchannel_can_read, vmchannel_read,
+ NULL, vmc);
+ ret = 0;
} else
#endif
#ifdef _WIN32
char ifname[64];
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
fprintf(stderr, "tap: no interface name\n");
- return -1;
+ ret = -1;
+ goto out;
}
vlan->nb_host_devs++;
ret = tap_win32_init(vlan, device, name, ifname);
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
fd = strtol(buf, NULL, 0);
fcntl(fd, F_SETFL, O_NONBLOCK);
- ret = -1;
- if (net_tap_fd_init(vlan, device, name, fd))
- ret = 0;
+ net_tap_fd_init(vlan, device, name, fd);
+ ret = 0;
} else {
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
ifname[0] = '\0';
ret = net_socket_mcast_init(vlan, device, name, buf);
} else {
fprintf(stderr, "Unknown socket options: %s\n", p);
- return -1;
+ ret = -1;
+ goto out;
}
vlan->nb_host_devs++;
} else
#endif
{
fprintf(stderr, "Unknown network device: %s\n", device);
- if (name)
- free(name);
- return -1;
+ ret = -1;
+ goto out;
}
if (ret < 0) {
fprintf(stderr, "Could not initialize device '%s'\n", device);
}
+out:
if (name)
free(name);
return ret;
}
+void net_client_uninit(NICInfo *nd)
+{
+ nd->vlan->nb_guest_devs--;
+ nb_nics--;
+ nd->used = 0;
+ free((void *)nd->model);
+}
+
+static int net_host_check_device(const char *device)
+{
+ int i;
+ const char *valid_param_list[] = { "tap", "socket"
+#ifdef CONFIG_SLIRP
+ ,"user"
+#endif
+#ifdef CONFIG_VDE
+ ,"vde"
+#endif
+ };
+ for (i = 0; i < sizeof(valid_param_list) / sizeof(char *); i++) {
+ if (!strncmp(valid_param_list[i], device,
+ strlen(valid_param_list[i])))
+ return 1;
+ }
+
+ return 0;
+}
+
+void net_host_device_add(const char *device, const char *opts)
+{
+ if (!net_host_check_device(device)) {
+ term_printf("invalid host network device %s\n", device);
+ return;
+ }
+ net_client_init(device, opts);
+}
+
+void net_host_device_remove(int vlan_id, const char *device)
+{
+ VLANState *vlan;
+ VLANClientState *vc;
+
+ vlan = qemu_find_vlan(vlan_id);
+
+ for(vc = vlan->first_client; vc != NULL; vc = vc->next)
+ if (!strcmp(vc->name, device))
+ break;
+
+ if (!vc) {
+ term_printf("can't find device %s\n", device);
+ return;
+ }
+ qemu_del_vlan_client(vc);
+}
+
int net_client_parse(const char *str)
{
const char *p;
}
}
+int do_set_link(const char *name, const char *up_or_down)
+{
+ VLANState *vlan;
+ VLANClientState *vc = NULL;
+
+ 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)
+ goto done;
+done:
+
+ if (!vc) {
+ term_printf("could not find network device '%s'", name);
+ return 0;
+ }
+
+ if (strcmp(up_or_down, "up") == 0)
+ vc->link_down = 0;
+ else if (strcmp(up_or_down, "down") == 0)
+ vc->link_down = 1;
+ else
+ term_printf("invalid link status '%s'; only 'up' or 'down' valid\n",
+ up_or_down);
+
+ if (vc->link_status_changed)
+ vc->link_status_changed(vc);
+
+ return 1;
+}
+
void net_cleanup(void)
{
VLANState *vlan;
-#if !defined(_WIN32)
/* close network clients */
for(vlan = first_vlan; vlan != NULL; vlan = vlan->next) {
- VLANClientState *vc;
+ VLANClientState *vc = vlan->first_client;
- for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
- if (vc->fd_read == tap_receive) {
- char ifname[64];
- TAPState *s = vc->opaque;
+ while (vc) {
+ VLANClientState *next = vc->next;
- if (strcmp(vc->model, "tap") == 0 &&
- sscanf(vc->info_str, "ifname=%63s ", ifname) == 1 &&
- s->down_script[0])
- launch_script(s->down_script, ifname, s->fd);
- }
-#if defined(CONFIG_VDE)
- if (vc->fd_read == vde_from_qemu) {
- VDEState *s = vc->opaque;
- vde_close(s->vde);
- }
-#endif
+ qemu_del_vlan_client(vc);
+
+ vc = next;
}
}
-#endif
}
void net_client_check(void)
projects / qemu.git / blobdiff