#include "monitor/monitor.h"
#include "qemu/help_option.h"
+#include "qapi/qapi-commands-net.h"
+#include "qapi/qapi-visit-net.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qerror.h"
#include "qemu/error-report.h"
#include "qemu/sockets.h"
#include "qemu/cutils.h"
#include "qemu/config-file.h"
-#include "qmp-commands.h"
+#include "qemu/ctype.h"
#include "hw/qdev.h"
#include "qemu/iov.h"
#include "qemu/main-loop.h"
#include "qemu/option.h"
-#include "qapi-visit.h"
#include "qapi/error.h"
#include "qapi/opts-visitor.h"
#include "sysemu/sysemu.h"
static VMChangeStateEntry *net_change_state_entry;
static QTAILQ_HEAD(, NetClientState) net_clients;
-const char *host_net_devices[] = {
- "tap",
- "socket",
- "dump",
-#ifdef CONFIG_NET_BRIDGE
- "bridge",
-#endif
-#ifdef CONFIG_NETMAP
- "netmap",
-#endif
-#ifdef CONFIG_SLIRP
- "user",
-#endif
-#ifdef CONFIG_VDE
- "vde",
-#endif
- "vhost-user",
- NULL,
-};
-
/***********************************************************/
/* network device redirectors */
-static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
-{
- const char *p, *p1;
- int len;
- p = *pp;
- p1 = strchr(p, sep);
- if (!p1)
- return -1;
- len = p1 - p;
- p1++;
- if (buf_size > 0) {
- if (len > buf_size - 1)
- len = buf_size - 1;
- memcpy(buf, p, len);
- buf[len] = '\0';
- }
- *pp = p1;
- return 0;
-}
-
int parse_host_port(struct sockaddr_in *saddr, const char *str,
Error **errp)
{
- char buf[512];
+ gchar **substrings;
struct hostent *he;
- const char *p, *r;
- int port;
+ const char *addr, *p, *r;
+ int port, ret = 0;
- p = str;
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+ substrings = g_strsplit(str, ":", 2);
+ if (!substrings || !substrings[0] || !substrings[1]) {
error_setg(errp, "host address '%s' doesn't contain ':' "
"separating host from port", str);
- return -1;
+ ret = -1;
+ goto out;
}
+
+ addr = substrings[0];
+ p = substrings[1];
+
saddr->sin_family = AF_INET;
- if (buf[0] == '\0') {
+ if (addr[0] == '\0') {
saddr->sin_addr.s_addr = 0;
} else {
- if (qemu_isdigit(buf[0])) {
- if (!inet_aton(buf, &saddr->sin_addr)) {
+ if (qemu_isdigit(addr[0])) {
+ if (!inet_aton(addr, &saddr->sin_addr)) {
error_setg(errp, "host address '%s' is not a valid "
- "IPv4 address", buf);
- return -1;
+ "IPv4 address", addr);
+ ret = -1;
+ goto out;
}
} else {
- he = gethostbyname(buf);
+ he = gethostbyname(addr);
if (he == NULL) {
- error_setg(errp, "can't resolve host address '%s'", buf);
- return - 1;
+ error_setg(errp, "can't resolve host address '%s'", addr);
+ ret = -1;
+ goto out;
}
saddr->sin_addr = *(struct in_addr *)he->h_addr;
}
port = strtol(p, (char **)&r, 0);
if (r == p) {
error_setg(errp, "port number '%s' is invalid", p);
- return -1;
+ ret = -1;
+ goto out;
}
saddr->sin_port = htons(port);
- return 0;
+
+out:
+ g_strfreev(substrings);
+ return ret;
}
char *qemu_mac_strdup_printf(const uint8_t *macaddr)
{
g_free(nc);
}
+static ssize_t qemu_deliver_packet_iov(NetClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ void *opaque);
static void qemu_net_client_setup(NetClientState *nc,
NetClientInfo *info,
}
}
} else {
- QTAILQ_FOREACH_REVERSE(nf, &nc->filters, NetFilterHead, next) {
+ QTAILQ_FOREACH_REVERSE(nf, &nc->filters, next) {
ret = qemu_netfilter_receive(nf, direction, sender, flags, iov,
iovcnt, sent_cb);
if (ret) {
qemu_net_queue_purge(nc->peer->incoming_queue, nc);
}
-static
void qemu_flush_or_purge_queued_packets(NetClientState *nc, bool purge)
{
nc->receive_disabled = 0;
buf, size, sent_cb);
}
-void qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size)
+ssize_t qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size)
{
- qemu_send_packet_async(nc, buf, size, NULL);
+ return qemu_send_packet_async(nc, buf, size, NULL);
}
ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size)
return ret;
}
-ssize_t qemu_deliver_packet_iov(NetClientState *sender,
- unsigned flags,
- const struct iovec *iov,
- int iovcnt,
- void *opaque)
+static ssize_t qemu_deliver_packet_iov(NetClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ void *opaque)
{
NetClientState *nc = opaque;
int ret;
+
if (nc->link_down) {
return iov_size(iov, iovcnt);
}
NetPacketSent *sent_cb)
{
NetQueue *queue;
+ size_t size = iov_size(iov, iovcnt);
int ret;
+ if (size > NET_BUFSIZE) {
+ return size;
+ }
+
if (sender->link_down || !sender->peer) {
- return iov_size(iov, iovcnt);
+ return size;
}
/* Let filters handle the packet first */
return 0;
}
- fprintf(stderr, "qemu: Supported NIC models: ");
- for (i = 0 ; models[i]; i++)
- fprintf(stderr, "%s%c", models[i], models[i+1] ? ',' : '\n');
+ printf("Supported NIC models:\n");
+ for (i = 0 ; models[i]; i++) {
+ printf("%s\n", models[i]);
+ }
return 1;
}
#ifdef CONFIG_NETMAP
[NET_CLIENT_DRIVER_NETMAP] = net_init_netmap,
#endif
- [NET_CLIENT_DRIVER_DUMP] = net_init_dump,
#ifdef CONFIG_NET_BRIDGE
[NET_CLIENT_DRIVER_BRIDGE] = net_init_bridge,
#endif
[NET_CLIENT_DRIVER_HUBPORT] = net_init_hubport,
-#ifdef CONFIG_VHOST_NET_USED
+#ifdef CONFIG_VHOST_NET_USER
[NET_CLIENT_DRIVER_VHOST_USER] = net_init_vhost_user,
#endif
#ifdef CONFIG_L2TPV3
const Netdev *netdev;
const char *name;
NetClientState *peer = NULL;
- static bool vlan_warned;
if (is_netdev) {
netdev = object;
name = netdev->id;
- if (netdev->type == NET_CLIENT_DRIVER_DUMP ||
- netdev->type == NET_CLIENT_DRIVER_NIC ||
+ if (netdev->type == NET_CLIENT_DRIVER_NIC ||
!net_client_init_fun[netdev->type]) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "type",
"a netdev backend type");
/* missing optional values have been initialized to "all bits zero" */
name = net->has_id ? net->id : net->name;
+ if (net->has_name) {
+ warn_report("The 'name' parameter is deprecated, use 'id' instead");
+ }
+
/* Map the old options to the new flat type */
switch (opts->type) {
case NET_LEGACY_OPTIONS_TYPE_NONE:
legacy.type = NET_CLIENT_DRIVER_VDE;
legacy.u.vde = opts->u.vde;
break;
- case NET_LEGACY_OPTIONS_TYPE_DUMP:
- legacy.type = NET_CLIENT_DRIVER_DUMP;
- legacy.u.dump = opts->u.dump;
- break;
case NET_LEGACY_OPTIONS_TYPE_BRIDGE:
legacy.type = NET_CLIENT_DRIVER_BRIDGE;
legacy.u.bridge = opts->u.bridge;
return -1;
}
- /* Do not add to a vlan if it's a nic with a netdev= parameter. */
+ /* Do not add to a hub if it's a nic with a netdev= parameter. */
if (netdev->type != NET_CLIENT_DRIVER_NIC ||
!opts->u.nic.has_netdev) {
- peer = net_hub_add_port(net->has_vlan ? net->vlan : 0, NULL, NULL);
- }
-
- if (net->has_vlan && !vlan_warned) {
- error_report("'vlan' is deprecated. Please use 'netdev' instead.");
- vlan_warned = true;
+ peer = net_hub_add_port(0, NULL, NULL);
}
}
return 0;
}
+static void show_netdevs(void)
+{
+ int idx;
+ const char *available_netdevs[] = {
+ "socket",
+ "hubport",
+ "tap",
+#ifdef CONFIG_SLIRP
+ "user",
+#endif
+#ifdef CONFIG_L2TPV3
+ "l2tpv3",
+#endif
+#ifdef CONFIG_VDE
+ "vde",
+#endif
+#ifdef CONFIG_NET_BRIDGE
+ "bridge",
+#endif
+#ifdef CONFIG_NETMAP
+ "netmap",
+#endif
+#ifdef CONFIG_POSIX
+ "vhost-user",
+#endif
+ };
+
+ printf("Available netdev backend types:\n");
+ for (idx = 0; idx < ARRAY_SIZE(available_netdevs); idx++) {
+ puts(available_netdevs[idx]);
+ }
+}
-int net_client_init(QemuOpts *opts, bool is_netdev, Error **errp)
+static int net_client_init(QemuOpts *opts, bool is_netdev, Error **errp)
{
+ gchar **substrings = NULL;
void *object = NULL;
Error *err = NULL;
int ret = -1;
Visitor *v = opts_visitor_new(opts);
- {
+ const char *type = qemu_opt_get(opts, "type");
+
+ if (is_netdev && type && is_help_option(type)) {
+ show_netdevs();
+ exit(0);
+ } else {
/* Parse convenience option format ip6-net=fec0::0[/64] */
const char *ip6_net = qemu_opt_get(opts, "ipv6-net");
if (ip6_net) {
- char buf[strlen(ip6_net) + 1];
+ char *prefix_addr;
+ unsigned long prefix_len = 64; /* Default 64bit prefix length. */
+
+ substrings = g_strsplit(ip6_net, "/", 2);
+ if (!substrings || !substrings[0]) {
+ error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "ipv6-net",
+ "a valid IPv6 prefix");
+ goto out;
+ }
- if (get_str_sep(buf, sizeof(buf), &ip6_net, '/') < 0) {
- /* Default 64bit prefix length. */
- qemu_opt_set(opts, "ipv6-prefix", ip6_net, &error_abort);
- qemu_opt_set_number(opts, "ipv6-prefixlen", 64, &error_abort);
- } else {
+ prefix_addr = substrings[0];
+
+ if (substrings[1]) {
/* User-specified prefix length. */
- unsigned long len;
int err;
- qemu_opt_set(opts, "ipv6-prefix", buf, &error_abort);
- err = qemu_strtoul(ip6_net, NULL, 10, &len);
-
+ err = qemu_strtoul(substrings[1], NULL, 10, &prefix_len);
if (err) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE,
- "ipv6-prefix", "a number");
- } else {
- qemu_opt_set_number(opts, "ipv6-prefixlen", len,
- &error_abort);
+ "ipv6-prefixlen", "a number");
+ goto out;
}
}
+
+ qemu_opt_set(opts, "ipv6-prefix", prefix_addr, &error_abort);
+ qemu_opt_set_number(opts, "ipv6-prefixlen", prefix_len,
+ &error_abort);
qemu_opt_unset(opts, "ipv6-net");
}
}
qapi_free_NetLegacy(object);
}
+out:
error_propagate(errp, err);
+ g_strfreev(substrings);
visit_free(v);
return ret;
}
-
-static int net_host_check_device(const char *device)
-{
- int i;
- for (i = 0; host_net_devices[i]; i++) {
- if (!strncmp(host_net_devices[i], device,
- strlen(host_net_devices[i]))) {
- return 1;
- }
- }
-
- return 0;
-}
-
-void hmp_host_net_add(Monitor *mon, const QDict *qdict)
-{
- const char *device = qdict_get_str(qdict, "device");
- const char *opts_str = qdict_get_try_str(qdict, "opts");
- Error *local_err = NULL;
- QemuOpts *opts;
- static bool warned;
-
- if (!warned && !qtest_enabled()) {
- error_report("host_net_add is deprecated, use netdev_add instead");
- warned = true;
- }
-
- if (!net_host_check_device(device)) {
- monitor_printf(mon, "invalid host network device %s\n", device);
- return;
- }
-
- opts = qemu_opts_parse_noisily(qemu_find_opts("net"),
- opts_str ? opts_str : "", false);
- if (!opts) {
- return;
- }
-
- qemu_opt_set(opts, "type", device, &error_abort);
-
- net_client_init(opts, false, &local_err);
- if (local_err) {
- error_report_err(local_err);
- monitor_printf(mon, "adding host network device %s failed\n", device);
- }
-}
-
-void hmp_host_net_remove(Monitor *mon, const QDict *qdict)
-{
- NetClientState *nc;
- int vlan_id = qdict_get_int(qdict, "vlan_id");
- const char *device = qdict_get_str(qdict, "device");
- static bool warned;
-
- if (!warned && !qtest_enabled()) {
- error_report("host_net_remove is deprecated, use netdev_del instead");
- warned = true;
- }
-
- nc = net_hub_find_client_by_name(vlan_id, device);
- if (!nc) {
- error_report("Host network device '%s' on hub '%d' not found",
- device, vlan_id);
- return;
- }
- if (nc->info->type == NET_CLIENT_DRIVER_NIC) {
- error_report("invalid host network device '%s'", device);
- return;
- }
-
- qemu_del_net_client(nc->peer);
- qemu_del_net_client(nc);
- qemu_opts_del(qemu_opts_find(qemu_find_opts("net"), device));
-}
-
void netdev_add(QemuOpts *opts, Error **errp)
{
net_client_init(opts, true, errp);
}
}
+void colo_notify_filters_event(int event, Error **errp)
+{
+ NetClientState *nc;
+ NetFilterState *nf;
+ NetFilterClass *nfc = NULL;
+ Error *local_err = NULL;
+
+ QTAILQ_FOREACH(nc, &net_clients, next) {
+ QTAILQ_FOREACH(nf, &nc->filters, next) {
+ nfc = NETFILTER_GET_CLASS(OBJECT(nf));
+ nfc->handle_event(nf, event, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ }
+ }
+}
+
void qmp_set_link(const char *name, bool up, Error **errp)
{
NetClientState *ncs[MAX_QUEUE_NUM];
* If the peer is a HUBPORT or a backend, we do not change the
* link status.
*
- * This behavior is compatible with qemu vlans where there could be
+ * This behavior is compatible with qemu hubs where there could be
* multiple clients that can still communicate with each other in
* disconnected mode. For now maintain this compatibility.
*/
static int net_init_client(void *dummy, QemuOpts *opts, Error **errp)
{
- Error *local_err = NULL;
-
- net_client_init(opts, false, &local_err);
- if (local_err) {
- error_report_err(local_err);
- return -1;
- }
-
- return 0;
+ return net_client_init(opts, false, errp);
}
static int net_init_netdev(void *dummy, QemuOpts *opts, Error **errp)
{
- Error *local_err = NULL;
- int ret;
+ return net_client_init(opts, true, errp);
+}
- ret = net_client_init(opts, true, &local_err);
- if (local_err) {
- error_report_err(local_err);
+/* For the convenience "--nic" parameter */
+static int net_param_nic(void *dummy, QemuOpts *opts, Error **errp)
+{
+ char *mac, *nd_id;
+ int idx, ret;
+ NICInfo *ni;
+ const char *type;
+
+ type = qemu_opt_get(opts, "type");
+ if (type && g_str_equal(type, "none")) {
+ return 0; /* Nothing to do, default_net is cleared in vl.c */
+ }
+
+ idx = nic_get_free_idx();
+ if (idx == -1 || nb_nics >= MAX_NICS) {
+ error_setg(errp, "no more on-board/default NIC slots available");
return -1;
}
+ if (!type) {
+ qemu_opt_set(opts, "type", "user", &error_abort);
+ }
+
+ ni = &nd_table[idx];
+ memset(ni, 0, sizeof(*ni));
+ ni->model = qemu_opt_get_del(opts, "model");
+
+ /* Create an ID if the user did not specify one */
+ nd_id = g_strdup(qemu_opts_id(opts));
+ if (!nd_id) {
+ nd_id = g_strdup_printf("__org.qemu.nic%i\n", idx);
+ qemu_opts_set_id(opts, nd_id);
+ }
+
+ /* Handle MAC address */
+ mac = qemu_opt_get_del(opts, "mac");
+ if (mac) {
+ ret = net_parse_macaddr(ni->macaddr.a, mac);
+ g_free(mac);
+ if (ret) {
+ error_setg(errp, "invalid syntax for ethernet address");
+ goto out;
+ }
+ if (is_multicast_ether_addr(ni->macaddr.a)) {
+ error_setg(errp, "NIC cannot have multicast MAC address");
+ ret = -1;
+ goto out;
+ }
+ }
+ qemu_macaddr_default_if_unset(&ni->macaddr);
+
+ ret = net_client_init(opts, true, errp);
+ if (ret == 0) {
+ ni->netdev = qemu_find_netdev(nd_id);
+ ni->used = true;
+ nb_nics++;
+ }
+
+out:
+ g_free(nd_id);
return ret;
}
-int net_init_clients(void)
+int net_init_clients(Error **errp)
{
- QemuOptsList *net = qemu_find_opts("net");
-
net_change_state_entry =
qemu_add_vm_change_state_handler(net_vm_change_state_handler, NULL);
QTAILQ_INIT(&net_clients);
if (qemu_opts_foreach(qemu_find_opts("netdev"),
- net_init_netdev, NULL, NULL)) {
+ net_init_netdev, NULL, errp)) {
+ return -1;
+ }
+
+ if (qemu_opts_foreach(qemu_find_opts("nic"), net_param_nic, NULL, errp)) {
return -1;
}
- if (qemu_opts_foreach(net, net_init_client, NULL, NULL)) {
+ if (qemu_opts_foreach(qemu_find_opts("net"), net_init_client, NULL, errp)) {
return -1;
}
},
};
+QemuOptsList qemu_nic_opts = {
+ .name = "nic",
+ .implied_opt_name = "type",
+ .head = QTAILQ_HEAD_INITIALIZER(qemu_nic_opts.head),
+ .desc = {
+ /*
+ * no elements => accept any params
+ * validation will happen later
+ */
+ { /* end of list */ }
+ },
+};
+
QemuOptsList qemu_net_opts = {
.name = "net",
.implied_opt_name = "type",
projects / mirror_qemu.git / blobdiff