#include <linux/if_tun.h>
#endif
+#if defined(CONFIG_SLIRP)
+#include "libslirp.h"
+#endif
+
#ifdef _WIN32
#include <sys/timeb.h>
#include <windows.h>
#endif
/***********************************************************/
-/* Linux network device redirector */
+/* Linux network device redirectors */
-#ifdef _WIN32
+void hex_dump(FILE *f, const uint8_t *buf, int size)
+{
+ int len, i, j, c;
+
+ for(i=0;i<size;i+=16) {
+ len = size - i;
+ if (len > 16)
+ len = 16;
+ fprintf(f, "%08x ", i);
+ for(j=0;j<16;j++) {
+ if (j < len)
+ fprintf(f, " %02x", buf[i+j]);
+ else
+ fprintf(f, " ");
+ }
+ fprintf(f, " ");
+ for(j=0;j<len;j++) {
+ c = buf[i+j];
+ if (c < ' ' || c > '~')
+ c = '.';
+ fprintf(f, "%c", c);
+ }
+ fprintf(f, "\n");
+ }
+}
+
+void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+{
+ nd->send_packet(nd, buf, size);
+}
-static int net_init(void)
+void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
+ IOReadHandler *fd_read, void *opaque)
{
+ nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
+}
+
+/* dummy network adapter */
+
+static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+{
+}
+
+static void dummy_add_read_packet(NetDriverState *nd,
+ IOCanRWHandler *fd_can_read,
+ IOReadHandler *fd_read, void *opaque)
+{
+}
+
+static int net_dummy_init(NetDriverState *nd)
+{
+ nd->send_packet = dummy_send_packet;
+ nd->add_read_packet = dummy_add_read_packet;
+ pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
return 0;
}
-void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+#if defined(CONFIG_SLIRP)
+
+/* slirp network adapter */
+
+static void *slirp_fd_opaque;
+static IOCanRWHandler *slirp_fd_can_read;
+static IOReadHandler *slirp_fd_read;
+static int slirp_inited;
+
+int slirp_can_output(void)
+{
+ return slirp_fd_can_read(slirp_fd_opaque);
+}
+
+void slirp_output(const uint8_t *pkt, int pkt_len)
{
+#if 0
+ printf("output:\n");
+ hex_dump(stdout, pkt, pkt_len);
+#endif
+ slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
}
-#else
+static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+{
+#if 0
+ printf("input:\n");
+ hex_dump(stdout, buf, size);
+#endif
+ slirp_input(buf, size);
+}
+
+static void slirp_add_read_packet(NetDriverState *nd,
+ IOCanRWHandler *fd_can_read,
+ IOReadHandler *fd_read, void *opaque)
+{
+ slirp_fd_opaque = opaque;
+ slirp_fd_can_read = fd_can_read;
+ slirp_fd_read = fd_read;
+}
+
+static int net_slirp_init(NetDriverState *nd)
+{
+ if (!slirp_inited) {
+ slirp_inited = 1;
+ slirp_init();
+ }
+ nd->send_packet = slirp_send_packet;
+ nd->add_read_packet = slirp_add_read_packet;
+ pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
+ return 0;
+}
+
+#endif /* CONFIG_SLIRP */
+
+#if !defined(_WIN32)
static int tun_open(char *ifname, int ifname_size)
{
return fd;
}
-static int net_init(void)
+static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+{
+ write(nd->fd, buf, size);
+}
+
+static void tun_add_read_packet(NetDriverState *nd,
+ IOCanRWHandler *fd_can_read,
+ IOReadHandler *fd_read, void *opaque)
{
- int pid, status, launch_script, i;
- NetDriverState *nd;
- char *args[MAX_NICS + 2];
+ qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
+}
+
+static int net_tun_init(NetDriverState *nd)
+{
+ int pid, status;
+ char *args[3];
char **parg;
- launch_script = 0;
- for(i = 0; i < nb_nics; i++) {
- nd = &nd_table[i];
- if (nd->fd < 0) {
- nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
- if (nd->fd >= 0)
- launch_script = 1;
- }
- }
+ nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
+ if (nd->fd < 0)
+ return -1;
- if (launch_script) {
- /* try to launch network init script */
- pid = fork();
- if (pid >= 0) {
- if (pid == 0) {
- parg = args;
- *parg++ = network_script;
- for(i = 0; i < nb_nics; i++) {
- nd = &nd_table[i];
- if (nd->fd >= 0) {
- *parg++ = nd->ifname;
- }
- }
- *parg++ = NULL;
- execv(network_script, args);
- exit(1);
- }
- while (waitpid(pid, &status, 0) != pid);
- if (!WIFEXITED(status) ||
- WEXITSTATUS(status) != 0) {
- fprintf(stderr, "%s: could not launch network script\n",
- network_script);
- }
+ /* try to launch network init script */
+ pid = fork();
+ if (pid >= 0) {
+ if (pid == 0) {
+ parg = args;
+ *parg++ = network_script;
+ *parg++ = nd->ifname;
+ *parg++ = NULL;
+ execv(network_script, args);
+ exit(1);
+ }
+ while (waitpid(pid, &status, 0) != pid);
+ if (!WIFEXITED(status) ||
+ WEXITSTATUS(status) != 0) {
+ fprintf(stderr, "%s: could not launch network script\n",
+ network_script);
}
}
+ nd->send_packet = tun_send_packet;
+ nd->add_read_packet = tun_add_read_packet;
return 0;
}
-void net_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
+static int net_fd_init(NetDriverState *nd, int fd)
{
-#ifdef DEBUG_NE2000
- printf("NE2000: sending packet size=%d\n", size);
-#endif
- write(nd->fd, buf, size);
+ nd->fd = fd;
+ nd->send_packet = tun_send_packet;
+ nd->add_read_packet = tun_add_read_packet;
+ pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
+ return 0;
}
-#endif
+#endif /* !_WIN32 */
/***********************************************************/
/* dumb display */
}
}
}
+
+#if defined(CONFIG_SLIRP)
+ /* XXX: merge with poll() */
+ if (slirp_inited) {
+ fd_set rfds, wfds, xfds;
+ int nfds;
+ struct timeval tv;
+
+ nfds = -1;
+ FD_ZERO(&rfds);
+ FD_ZERO(&wfds);
+ FD_ZERO(&xfds);
+ slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+ ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
+ if (ret >= 0) {
+ slirp_select_poll(&rfds, &wfds, &xfds);
+ }
+ }
+#endif
+
#endif
if (vm_running) {
"-nographic disable graphical output and redirect serial I/Os to console\n"
"\n"
"Network options:\n"
- "-n script set network init script [default=%s]\n"
- "-nics n simulate 'n' network interfaces [default=1]\n"
+ "-nics n simulate 'n' network cards [default=1]\n"
"-macaddr addr set the mac address of the first interface\n"
- "-tun-fd fd0[,...] use these fds as already opened tap/tun interfaces\n"
+ "-n script set tap/tun network init script [default=%s]\n"
+ "-tun-fd fd use this fd as already opened tap/tun interface\n"
+#ifdef CONFIG_SLIRP
+ "-user-net use user mode network stack [default if no tap/tun script]\n"
+#endif
+ "-dummy-net use dummy network stack\n"
"\n"
"Linux boot specific:\n"
"-kernel bzImage use 'bzImage' as kernel image\n"
{ "no-code-copy", 0, NULL, 0 },
{ "nics", 1, NULL, 0 },
{ "macaddr", 1, NULL, 0 },
+ { "user-net", 1, NULL, 0 },
+ { "dummy-net", 1, NULL, 0 },
{ NULL, 0, NULL, 0 },
};
#endif
+#define NET_IF_TUN 0
+#define NET_IF_USER 1
+#define NET_IF_DUMMY 2
+
int main(int argc, char **argv)
{
#ifdef CONFIG_GDBSTUB
int cyls, heads, secs;
int start_emulation = 1;
uint8_t macaddr[6];
-
+ int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
+
#if !defined(CONFIG_SOFTMMU)
/* we never want that malloc() uses mmap() */
mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
has_cdrom = 1;
cyls = heads = secs = 0;
+ nb_tun_fds = 0;
+ net_if_type = -1;
nb_nics = 1;
/* default mac address of the first network interface */
macaddr[0] = 0x52;
macaddr[3] = 0x12;
macaddr[4] = 0x34;
macaddr[5] = 0x56;
-
- for(i = 0; i < MAX_NICS; i++)
- nd_table[i].fd = -1;
-
+
+
for(;;) {
c = getopt_long_only(argc, argv, "hm:d:n:sp:L:S", long_options, &long_index);
if (c == -1)
{
const char *p;
int fd;
- p = optarg;
- nb_nics = 0;
- for(;;) {
- fd = strtol(p, (char **)&p, 0);
- nd_table[nb_nics].fd = fd;
- snprintf(nd_table[nb_nics].ifname,
- sizeof(nd_table[nb_nics].ifname),
- "fd%d", nb_nics);
- nb_nics++;
- if (*p == ',') {
- p++;
- } else if (*p != '\0') {
- fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_nics);
+ if (nb_tun_fds < MAX_NICS) {
+ fd = strtol(optarg, (char **)&p, 0);
+ if (*p != '\0') {
+ fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
exit(1);
- } else {
- break;
}
+ tun_fds[nb_tun_fds++] = fd;
}
}
break;
}
}
break;
+ case 18:
+ net_if_type = NET_IF_USER;
+ break;
+ case 19:
+ net_if_type = NET_IF_DUMMY;
+ break;
}
break;
case 'h':
#endif
/* init host network redirectors */
- for(i = 0; i < MAX_NICS; i++) {
+ if (net_if_type == -1) {
+ net_if_type = NET_IF_TUN;
+#if defined(CONFIG_SLIRP)
+ if (access(network_script, R_OK) < 0) {
+ net_if_type = NET_IF_USER;
+ }
+#endif
+ }
+
+ for(i = 0; i < nb_nics; i++) {
NetDriverState *nd = &nd_table[i];
+ nd->index = i;
/* init virtual mac address */
nd->macaddr[0] = macaddr[0];
nd->macaddr[1] = macaddr[1];
nd->macaddr[3] = macaddr[3];
nd->macaddr[4] = macaddr[4];
nd->macaddr[5] = macaddr[5] + i;
+ switch(net_if_type) {
+#if defined(CONFIG_SLIRP)
+ case NET_IF_USER:
+ net_slirp_init(nd);
+ break;
+#endif
+#if !defined(_WIN32)
+ case NET_IF_TUN:
+ if (i < nb_tun_fds) {
+ net_fd_init(nd, tun_fds[i]);
+ } else {
+ net_tun_init(nd);
+ }
+ break;
+#endif
+ case NET_IF_DUMMY:
+ default:
+ net_dummy_init(nd);
+ break;
+ }
}
- net_init();
/* init the memory */
phys_ram_size = ram_size + vga_ram_size;
}
if (fd_filename[i] != '\0') {
if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
- fprintf(stderr, "qemu: could not open floppy disk image '%s\n",
+ fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
fd_filename[i]);
exit(1);
}
projects / mirror_qemu.git / commitdiff