#include <sys/time.h>
#include <zlib.h>
-/* Needed early for HOST_BSD etc. */
+/* 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 <dirent.h>
#include <netdb.h>
#include <sys/select.h>
-#ifdef HOST_BSD
+#ifdef CONFIG_BSD
#include <sys/stat.h>
#if defined(__FreeBSD__) || defined(__DragonFly__)
#include <libutil.h>
#include <libvdeplug.h>
#endif
-#ifdef _WIN32
-#include <windows.h>
-#include <malloc.h>
-#include <sys/timeb.h>
-#include <mmsystem.h>
-#define getopt_long_only getopt_long
-#define memalign(align, size) malloc(size)
-#endif
-
#include "qemu-common.h"
#include "net.h"
#include "monitor.h"
#include "qemu_socket.h"
#include "qemu-log.h"
-#if defined(CONFIG_SLIRP)
-#include "libslirp.h"
-#endif
+#include "slirp/libslirp.h"
static VLANState *first_vlan;
return 0;
}
-#if !defined(_WIN32) && 0
-static int parse_unix_path(struct sockaddr_un *uaddr, const char *str)
-{
- const char *p;
- int len;
-
- len = MIN(108, strlen(str));
- p = strchr(str, ',');
- if (p)
- len = MIN(len, p - str);
-
- memset(uaddr, 0, sizeof(*uaddr));
-
- uaddr->sun_family = AF_UNIX;
- memcpy(uaddr->sun_path, str, len);
-
- return 0;
-}
-#endif
-
void qemu_format_nic_info_str(VLANClientState *vc, uint8_t macaddr[6])
{
snprintf(vc->info_str, sizeof(vc->info_str),
return NULL;
}
+static VLANClientState *
+qemu_find_vlan_client_by_name(Monitor *mon, int vlan_id,
+ const char *client_str)
+{
+ VLANState *vlan;
+ VLANClientState *vc;
+
+ vlan = qemu_find_vlan(vlan_id, 0);
+ if (!vlan) {
+ monitor_printf(mon, "unknown VLAN %d\n", vlan_id);
+ return NULL;
+ }
+
+ for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
+ if (!strcmp(vc->name, client_str)) {
+ break;
+ }
+ }
+ if (!vc) {
+ monitor_printf(mon, "can't find device %s on VLAN %d\n",
+ client_str, vlan_id);
+ }
+
+ return vc;
+}
+
int qemu_can_send_packet(VLANClientState *sender)
{
VLANState *vlan = sender->vlan;
void qemu_purge_queued_packets(VLANClientState *vc)
{
- VLANPacket **pp = &vc->vlan->send_queue;
-
- while (*pp != NULL) {
- VLANPacket *packet = *pp;
+ VLANPacket *packet, *next;
+ TAILQ_FOREACH_SAFE(packet, &vc->vlan->send_queue, entry, next) {
if (packet->sender == vc) {
- *pp = packet->next;
+ TAILQ_REMOVE(&vc->vlan->send_queue, packet, entry);
qemu_free(packet);
- } else {
- pp = &packet->next;
}
}
}
void qemu_flush_queued_packets(VLANClientState *vc)
{
- VLANPacket *packet;
-
- while ((packet = vc->vlan->send_queue) != NULL) {
+ while (!TAILQ_EMPTY(&vc->vlan->send_queue)) {
+ VLANPacket *packet;
int ret;
- vc->vlan->send_queue = packet->next;
+ 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) {
- packet->next = vc->vlan->send_queue;
- vc->vlan->send_queue = packet;
+ TAILQ_INSERT_HEAD(&vc->vlan->send_queue, packet, entry);
break;
}
VLANPacket *packet;
packet = qemu_malloc(sizeof(VLANPacket) + size);
- packet->next = sender->vlan->send_queue;
packet->sender = sender;
packet->size = size;
packet->sent_cb = sent_cb;
memcpy(packet->data, buf, size);
- sender->vlan->send_queue = packet;
+
+ TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
}
ssize_t qemu_send_packet_async(VLANClientState *sender,
max_len = calc_iov_length(iov, iovcnt);
packet = qemu_malloc(sizeof(VLANPacket) + max_len);
- packet->next = sender->vlan->send_queue;
packet->sender = sender;
packet->sent_cb = sent_cb;
packet->size = 0;
packet->size += len;
}
- sender->vlan->send_queue = packet;
+ TAILQ_INSERT_TAIL(&sender->vlan->send_queue, packet, entry);
return packet->size;
}
/* slirp network adapter */
+#define SLIRP_CFG_HOSTFWD 1
+#define SLIRP_CFG_LEGACY 2
+
struct slirp_config_str {
struct slirp_config_str *next;
- const char *str;
+ int flags;
+ char str[1024];
+ int legacy_format;
};
-static int slirp_inited;
-static struct slirp_config_str *slirp_redirs;
+typedef struct SlirpState {
+ TAILQ_ENTRY(SlirpState) entry;
+ VLANClientState *vc;
+ Slirp *slirp;
#ifndef _WIN32
-static const char *slirp_smb_export;
+ char smb_dir[128];
#endif
-static VLANClientState *slirp_vc;
+} 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);
+
+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);
#ifndef _WIN32
-static void slirp_smb(const char *exported_dir);
+static const char *legacy_smb_export;
+
+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
-static void slirp_redirection(Monitor *mon, const char *redir_str);
-int slirp_can_output(void)
+int slirp_can_output(void *opaque)
{
- return !slirp_vc || qemu_can_send_packet(slirp_vc);
+ SlirpState *s = opaque;
+
+ return qemu_can_send_packet(s->vc);
}
-void slirp_output(const uint8_t *pkt, int pkt_len)
+void slirp_output(void *opaque, const uint8_t *pkt, int pkt_len)
{
+ SlirpState *s = opaque;
+
#ifdef DEBUG_SLIRP
printf("slirp output:\n");
hex_dump(stdout, pkt, pkt_len);
#endif
- if (!slirp_vc)
- return;
- qemu_send_packet(slirp_vc, pkt, pkt_len);
-}
-
-int slirp_is_inited(void)
-{
- return slirp_inited;
+ qemu_send_packet(s->vc, pkt, pkt_len);
}
static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
+ SlirpState *s = vc->opaque;
+
#ifdef DEBUG_SLIRP
printf("slirp input:\n");
hex_dump(stdout, buf, size);
#endif
- slirp_input(buf, size);
+ slirp_input(s->slirp, buf, size);
return size;
}
-static int slirp_in_use;
-
static void net_slirp_cleanup(VLANClientState *vc)
{
- slirp_in_use = 0;
+ SlirpState *s = vc->opaque;
+
+ slirp_cleanup(s->slirp);
+ slirp_smb_cleanup(s);
+ TAILQ_REMOVE(&slirp_stacks, s, entry);
+ qemu_free(s);
}
-static int net_slirp_init(VLANState *vlan, const char *model, const char *name,
- int restricted, const char *ip)
-{
- if (slirp_in_use) {
- /* slirp only supports a single instance so far */
- return -1;
- }
- if (!slirp_inited) {
- slirp_inited = 1;
- slirp_init(restricted, ip);
+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)
+{
+ /* 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;
- while (slirp_redirs) {
- struct slirp_config_str *config = slirp_redirs;
+ if (!tftp_export) {
+ tftp_export = legacy_tftp_prefix;
+ }
+ if (!bootfile) {
+ bootfile = legacy_bootp_filename;
+ }
- slirp_redirection(NULL, config->str);
- slirp_redirs = config->next;
- qemu_free(config);
- }
-#ifndef _WIN32
- if (slirp_smb_export) {
- slirp_smb(slirp_smb_export);
+ 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));
+ }
}
-#endif
+ 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);
}
- slirp_vc = qemu_new_vlan_client(vlan, model, name, NULL, slirp_receive,
- NULL, net_slirp_cleanup, NULL);
- slirp_vc->info_str[0] = '\0';
- slirp_in_use = 1;
- return 0;
-}
+ if (vhost && !inet_aton(vhost, &host)) {
+ return -1;
+ }
+ if ((host.s_addr & mask.s_addr) != net.s_addr) {
+ return -1;
+ }
-static void net_slirp_redir_print(void *opaque, int is_udp,
- struct in_addr *laddr, u_int lport,
- struct in_addr *faddr, u_int fport)
-{
- Monitor *mon = (Monitor *)opaque;
- uint32_t h_addr;
- uint32_t g_addr;
- char buf[16];
+ 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;
+ }
- h_addr = ntohl(faddr->s_addr);
- g_addr = ntohl(laddr->s_addr);
+ 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;
+ }
- monitor_printf(mon, " %s |", is_udp ? "udp" : "tcp" );
- snprintf(buf, 15, "%d.%d.%d.%d", (h_addr >> 24) & 0xff,
- (h_addr >> 16) & 0xff,
- (h_addr >> 8) & 0xff,
- (h_addr) & 0xff);
- monitor_printf(mon, " %15s |", buf);
- monitor_printf(mon, " %5d |", fport);
+#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);
- snprintf(buf, 15, "%d.%d.%d.%d", (g_addr >> 24) & 0xff,
- (g_addr >> 16) & 0xff,
- (g_addr >> 8) & 0xff,
- (g_addr) & 0xff);
- monitor_printf(mon, " %15s |", buf);
- monitor_printf(mon, " %5d\n", lport);
+ 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 void net_slirp_redir_list(Monitor *mon)
+static SlirpState *slirp_lookup(Monitor *mon, const char *vlan,
+ const char *stack)
{
- if (!mon)
- return;
+ VLANClientState *vc;
- monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
- monitor_printf(mon, " | | | | \n");
- slirp_redir_loop(net_slirp_redir_print, mon);
+ 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);
+ }
}
-static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
+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 *p = port_str;
+ const char *src_str, *p;
+ SlirpState *s;
int is_udp = 0;
- int n;
-
- if (!mon)
+ 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 (!port_str || !port_str[0])
+ 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') {
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);
- n = slirp_redir_rm(is_udp, host_port);
+ err = slirp_remove_hostfwd(TAILQ_FIRST(&slirp_stacks)->slirp, is_udp,
+ host_addr, host_port);
- monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
- is_udp ? "udp" : "tcp", 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_redirection(Monitor *mon, const char *redir_str)
+static void slirp_hostfwd(SlirpState *s, Monitor *mon, const char *redir_str,
+ int legacy_format)
{
- struct in_addr guest_addr;
+ 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], *r;
+ char buf[256];
int is_udp;
+ char *end;
p = redir_str;
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+ if (!p || 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) {
+ 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, &r, 0);
- if (r == buf) {
+ 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') {
- pstrcpy(buf, sizeof(buf), "10.0.2.15");
- }
- if (!inet_aton(buf, &guest_addr)) {
+ if (buf[0] != '\0' && !inet_aton(buf, &guest_addr)) {
goto fail_syntax;
}
- guest_port = strtol(p, &r, 0);
- if (r == p) {
+ guest_port = strtol(p, &end, 0);
+ if (*end != '\0' || guest_port < 1 || guest_port > 65535) {
goto fail_syntax;
}
- if (slirp_redir(is_udp, host_port, guest_addr, guest_port) < 0) {
- config_error(mon, "could not set up redirection '%s'\n", redir_str);
+ 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 redirection format '%s'\n", redir_str);
+ config_error(mon, "invalid host forwarding rule '%s'\n", redir_str);
}
-void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
+void net_slirp_hostfwd_add(Monitor *mon, const QDict *qdict)
{
- struct slirp_config_str *config;
+ 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 (!slirp_inited) {
- if (mon) {
- monitor_printf(mon, "user mode network stack not in use\n");
- } else {
- config = qemu_malloc(sizeof(*config));
- config->str = redir_str;
- config->next = slirp_redirs;
- slirp_redirs = config;
- }
- return;
+ if (arg2) {
+ s = slirp_lookup(mon, arg1, arg2);
+ redir_str = arg3;
+ } else {
+ s = slirp_lookup(mon, NULL, NULL);
+ redir_str = arg1;
}
-
- if (!strcmp(redir_str, "remove")) {
- net_slirp_redir_rm(mon, redir_opt2);
- return;
+ if (s) {
+ slirp_hostfwd(s, mon, redir_str, 0);
}
- if (!strcmp(redir_str, "list")) {
- net_slirp_redir_list(mon);
+}
+
+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_redirection(mon, redir_str);
+ slirp_hostfwd(TAILQ_FIRST(&slirp_stacks), NULL, redir_str, 1);
}
#ifndef _WIN32
-static char smb_dir[1024];
-
-static void erase_dir(char *dir_name)
+/* automatic user mode samba server configuration */
+static void slirp_smb_cleanup(SlirpState *s)
{
- DIR *d;
- struct dirent *de;
- char filename[1024];
+ char cmd[128];
- /* erase all the files in the directory */
- if ((d = opendir(dir_name)) != NULL) {
- for(;;) {
- de = readdir(d);
- if (!de)
- break;
- if (strcmp(de->d_name, ".") != 0 &&
- strcmp(de->d_name, "..") != 0) {
- snprintf(filename, sizeof(filename), "%s/%s",
- smb_dir, de->d_name);
- if (unlink(filename) != 0) /* is it a directory? */
- erase_dir(filename);
- }
- }
- closedir(d);
- rmdir(dir_name);
+ if (s->smb_dir[0] != '\0') {
+ snprintf(cmd, sizeof(cmd), "rm -rf %s", s->smb_dir);
+ system(cmd);
+ s->smb_dir[0] = '\0';
}
}
-/* automatic user mode samba server configuration */
-static void smb_exit(void)
-{
- erase_dir(smb_dir);
-}
-
-static void slirp_smb(const char *exported_dir)
+static void slirp_smb(SlirpState* s, Monitor *mon, const char *exported_dir,
+ struct in_addr vserver_addr)
{
- char smb_conf[1024];
- char smb_cmdline[1024];
+ static int instance;
+ char smb_conf[128];
+ char smb_cmdline[128];
FILE *f;
- /* XXX: better tmp dir construction */
- snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
- if (mkdir(smb_dir, 0700) < 0) {
- fprintf(stderr, "qemu: could not create samba server dir '%s'\n", smb_dir);
- exit(1);
+ 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", smb_dir, "smb.conf");
+ snprintf(smb_conf, sizeof(smb_conf), "%s/%s", s->smb_dir, "smb.conf");
f = fopen(smb_conf, "w");
if (!f) {
- fprintf(stderr, "qemu: could not create samba server configuration file '%s'\n", smb_conf);
- exit(1);
+ slirp_smb_cleanup(s);
+ config_error(mon, "could not create samba server "
+ "configuration file '%s'\n", smb_conf);
+ return;
}
fprintf(f,
"[global]\n"
"path=%s\n"
"read only=no\n"
"guest ok=yes\n",
- smb_dir,
- smb_dir,
- smb_dir,
- smb_dir,
- smb_dir,
+ s->smb_dir,
+ s->smb_dir,
+ s->smb_dir,
+ s->smb_dir,
+ s->smb_dir,
exported_dir
);
fclose(f);
- atexit(smb_exit);
snprintf(smb_cmdline, sizeof(smb_cmdline), "%s -s %s",
SMBD_COMMAND, smb_conf);
- slirp_add_exec(0, smb_cmdline, 4, 139);
+ 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 */
+/* automatic user mode samba server configuration (legacy interface) */
void net_slirp_smb(const char *exported_dir)
{
- if (slirp_smb_export) {
+ struct in_addr vserver_addr = { .s_addr = 0 };
+
+ if (legacy_smb_export) {
fprintf(stderr, "-smb given twice\n");
exit(1);
}
- slirp_smb_export = exported_dir;
- if (slirp_inited) {
- slirp_smb(exported_dir);
+ legacy_smb_export = exported_dir;
+ if (!TAILQ_EMPTY(&slirp_stacks)) {
+ slirp_smb(TAILQ_FIRST(&slirp_stacks), NULL, exported_dir,
+ vserver_addr);
}
}
#endif /* !defined(_WIN32) */
-void do_info_slirp(Monitor *mon)
-{
- slirp_stats();
-}
-
-struct VMChannel {
+struct GuestFwd {
CharDriverState *hd;
+ struct in_addr server;
int port;
+ Slirp *slirp;
};
-static int vmchannel_can_read(void *opaque)
+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 VMChannel *vmc = (struct VMChannel*)opaque;
- return slirp_socket_can_recv(4, vmc->port);
+ 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);
}
-static void vmchannel_read(void *opaque, const uint8_t *buf, int size)
+void do_info_usernet(Monitor *mon)
{
- struct VMChannel *vmc = (struct VMChannel*)opaque;
- slirp_socket_recv(4, vmc->port, buf, size);
+ 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 */
} while (size > 0);
}
-static void tap_set_sndbuf(TAPState *s, int sndbuf, Monitor *mon)
-{
#ifdef TUNSETSNDBUF
- if (ioctl(s->fd, TUNSETSNDBUF, &sndbuf) == -1) {
+/* 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
- config_error(mon, "No '-net tap,sndbuf=<nbytes>' support available\n");
-#endif
+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)
{
return s;
}
-#if defined (HOST_BSD) || defined (__FreeBSD_kernel__)
+#if defined (CONFIG_BSD) || defined (__FreeBSD_kernel__)
static int tap_open(char *ifname, int ifname_size)
{
int fd;
}
/* find or alloc a new VLAN */
-VLANState *qemu_find_vlan(int id)
+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;
+ }
vlan = qemu_mallocz(sizeof(VLANState));
vlan->id = id;
+ TAILQ_INIT(&vlan->send_queue);
vlan->next = NULL;
pvlan = &first_vlan;
while (*pvlan != NULL)
exit(exit_status);
}
+static int net_handle_fd_param(Monitor *mon, const char *param)
+{
+ if (!qemu_isdigit(param[0])) {
+ int fd;
+
+ fd = monitor_get_fd(mon, param);
+ if (fd == -1) {
+ config_error(mon, "No file descriptor named %s found", param);
+ 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];
if (get_param_value(buf, sizeof(buf), "vlan", p)) {
vlan_id = strtol(buf, NULL, 0);
}
- vlan = qemu_find_vlan(vlan_id);
+ 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", "vectors", NULL
+ "vlan", "name", "macaddr", "model", "addr", "id", "vectors", NULL
};
NICInfo *nd;
uint8_t *macaddr;
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;
#ifdef CONFIG_SLIRP
if (!strcmp(device, "user")) {
static const char * const slirp_params[] = {
- "vlan", "name", "hostname", "restrict", "ip", NULL
+ "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 *ip = NULL;
+ 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)) {
- pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
+ 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), "ip", p)) {
- ip = qemu_strdup(buf);
+ 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(vlan, device, name, restricted, ip);
- qemu_free(ip);
+ 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")) {
- long port;
- char name[20], *devname;
- struct VMChannel *vmc;
-
- port = strtol(p, &devname, 10);
- devname++;
- if (port < 1 || port > 65535) {
- config_error(mon, "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) {
- config_error(mon, "could not open vmchannel device '%s'\n",
- devname);
- ret = -1;
- goto out;
+ 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);
}
- 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
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);
- ret = -1;
goto out;
}
- fd = strtol(buf, NULL, 0);
+ 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
s = net_tap_init(vlan, device, name, ifname, setup_script, down_script);
}
if (s != NULL) {
+ const char *sndbuf_str = NULL;
if (get_param_value(buf, sizeof(buf), "sndbuf", p)) {
- tap_set_sndbuf(s, atoi(buf), mon);
+ sndbuf_str = buf;
}
+ tap_set_sndbuf(s, sndbuf_str, mon);
ret = 0;
} else {
ret = -1;
"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);
- ret = -1;
goto out;
}
- fd = strtol(buf, NULL, 0);
- ret = -1;
- if (net_socket_fd_init(vlan, device, name, fd, 1))
- ret = 0;
+ 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
return 0;
}
-void net_host_device_add(Monitor *mon, const char *device, const char *opts)
+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");
+
if (!net_host_check_device(device)) {
monitor_printf(mon, "invalid host network device %s\n", device);
return;
}
}
-void net_host_device_remove(Monitor *mon, int vlan_id, const char *device)
+void net_host_device_remove(Monitor *mon, const QDict *qdict)
{
- VLANState *vlan;
VLANClientState *vc;
+ int vlan_id = qdict_get_int(qdict, "vlan_id");
+ const char *device = qdict_get_str(qdict, "device");
- vlan = qemu_find_vlan(vlan_id);
-
- for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
- if (!strcmp(vc->name, device)) {
- break;
- }
- }
-
+ vc = qemu_find_vlan_client_by_name(mon, vlan_id, device);
if (!vc) {
- monitor_printf(mon, "can't find device %s\n", device);
return;
}
if (!net_host_check_device(vc->model)) {
}
}
-int do_set_link(Monitor *mon, const char *name, const char *up_or_down)
+void do_set_link(Monitor *mon, const QDict *qdict)
{
VLANState *vlan;
VLANClientState *vc = NULL;
+ 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)
done:
if (!vc) {
- monitor_printf(mon, "could not find network device '%s'", name);
- return 0;
+ monitor_printf(mon, "could not find network device '%s'\n", name);
+ return;
}
if (strcmp(up_or_down, "up") == 0)
if (vc->link_status_changed)
vc->link_status_changed(vc);
-
- return 1;
}
void net_cleanup(void)
projects / qemu / blobdiff