#include "qemu-char.h"
#include "audio/audio.h"
#include "qemu_socket.h"
+#include "qemu-log.h"
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
VLANClientState *qemu_new_vlan_client(VLANState *vlan,
const char *model,
const char *name,
- IOReadHandler *fd_read,
- IOCanRWHandler *fd_can_read,
+ NetCanReceive *can_receive,
+ NetReceive *receive,
+ NetReceiveIOV *receive_iov,
NetCleanup *cleanup,
void *opaque)
{
vc->name = strdup(name);
else
vc->name = assign_name(vc, model);
- vc->fd_read = fd_read;
- vc->fd_can_read = fd_can_read;
+ vc->can_receive = can_receive;
+ vc->receive = receive;
+ vc->receive_iov = receive_iov;
vc->cleanup = cleanup;
vc->opaque = opaque;
vc->vlan = vlan;
return NULL;
}
-int qemu_can_send_packet(VLANClientState *vc1)
+int qemu_can_send_packet(VLANClientState *sender)
{
- VLANState *vlan = vc1->vlan;
+ VLANState *vlan = sender->vlan;
VLANClientState *vc;
- for(vc = vlan->first_client; vc != NULL; vc = vc->next) {
- if (vc != vc1) {
- if (vc->fd_can_read && vc->fd_can_read(vc->opaque))
- return 1;
+ for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
+ if (vc == sender) {
+ continue;
+ }
+
+ /* no can_receive() handler, they can always receive */
+ if (!vc->can_receive || vc->can_receive(vc)) {
+ return 1;
}
}
return 0;
}
-void qemu_send_packet(VLANClientState *vc1, const uint8_t *buf, int size)
+static int
+qemu_deliver_packet(VLANClientState *sender, const uint8_t *buf, int size)
{
- VLANState *vlan = vc1->vlan;
VLANClientState *vc;
+ int ret = -1;
- if (vc1->link_down)
- return;
+ sender->vlan->delivering = 1;
+
+ for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
+ ssize_t len;
+
+ if (vc == sender) {
+ continue;
+ }
+
+ if (vc->link_down) {
+ ret = size;
+ continue;
+ }
+
+ len = vc->receive(vc, buf, size);
+
+ ret = (ret >= 0) ? ret : len;
+ }
+
+ sender->vlan->delivering = 0;
+
+ return ret;
+}
+
+void qemu_flush_queued_packets(VLANClientState *vc)
+{
+ VLANPacket *packet;
+
+ while ((packet = vc->vlan->send_queue) != NULL) {
+ int ret;
+
+ vc->vlan->send_queue = packet->next;
+
+ 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;
+ break;
+ }
+
+ if (packet->sent_cb)
+ packet->sent_cb(packet->sender);
+
+ qemu_free(packet);
+ }
+}
+
+static void qemu_enqueue_packet(VLANClientState *sender,
+ const uint8_t *buf, int size,
+ NetPacketSent *sent_cb)
+{
+ 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;
+}
+
+ssize_t qemu_send_packet_async(VLANClientState *sender,
+ const uint8_t *buf, int size,
+ NetPacketSent *sent_cb)
+{
+ int ret;
+
+ if (sender->link_down) {
+ return size;
+ }
#ifdef DEBUG_NET
- printf("vlan %d send:\n", vlan->id);
+ printf("vlan %d send:\n", sender->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 (sender->vlan->delivering) {
+ qemu_enqueue_packet(sender, buf, size, NULL);
+ return size;
}
+
+ ret = qemu_deliver_packet(sender, buf, size);
+ if (ret == 0 && sent_cb != NULL) {
+ qemu_enqueue_packet(sender, buf, size, sent_cb);
+ return 0;
+ }
+
+ qemu_flush_queued_packets(sender);
+
+ return ret;
+}
+
+void qemu_send_packet(VLANClientState *vc, const uint8_t *buf, int size)
+{
+ qemu_send_packet_async(vc, buf, size, NULL);
}
static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov,
offset += len;
}
- vc->fd_read(vc->opaque, buffer, offset);
-
- return offset;
+ return vc->receive(vc, buffer, offset);
}
static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt)
return offset;
}
-ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov,
- int iovcnt)
+static int qemu_deliver_packet_iov(VLANClientState *sender,
+ const struct iovec *iov, int iovcnt)
{
- VLANState *vlan = vc1->vlan;
VLANClientState *vc;
- ssize_t max_len = 0;
+ int ret = -1;
- if (vc1->link_down)
- return calc_iov_length(iov, iovcnt);
+ sender->vlan->delivering = 1;
- for (vc = vlan->first_client; vc != NULL; vc = vc->next) {
- ssize_t len = 0;
+ for (vc = sender->vlan->first_client; vc != NULL; vc = vc->next) {
+ ssize_t len;
- if (vc == vc1)
+ if (vc == sender) {
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)
+ if (vc->link_down) {
+ ret = calc_iov_length(iov, iovcnt);
+ continue;
+ }
+
+ if (vc->receive_iov) {
+ len = vc->receive_iov(vc, iov, iovcnt);
+ } else {
len = vc_sendv_compat(vc, iov, iovcnt);
+ }
- max_len = MAX(max_len, len);
+ ret = (ret >= 0) ? ret : len;
}
- return max_len;
+ sender->vlan->delivering = 0;
+
+ return ret;
+}
+
+static ssize_t qemu_enqueue_packet_iov(VLANClientState *sender,
+ const struct iovec *iov, int iovcnt,
+ NetPacketSent *sent_cb)
+{
+ VLANPacket *packet;
+ size_t max_len = 0;
+ int i;
+
+ 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;
+
+ for (i = 0; i < iovcnt; i++) {
+ size_t len = iov[i].iov_len;
+
+ memcpy(packet->data + packet->size, iov[i].iov_base, len);
+ packet->size += len;
+ }
+
+ sender->vlan->send_queue = packet;
+
+ return packet->size;
+}
+
+ssize_t qemu_sendv_packet_async(VLANClientState *sender,
+ const struct iovec *iov, int iovcnt,
+ NetPacketSent *sent_cb)
+{
+ int ret;
+
+ if (sender->link_down) {
+ return calc_iov_length(iov, iovcnt);
+ }
+
+ if (sender->vlan->delivering) {
+ return qemu_enqueue_packet_iov(sender, iov, iovcnt, NULL);
+ }
+
+ ret = qemu_deliver_packet_iov(sender, iov, iovcnt);
+ if (ret == 0 && sent_cb != NULL) {
+ qemu_enqueue_packet_iov(sender, iov, iovcnt, sent_cb);
+ return 0;
+ }
+
+ qemu_flush_queued_packets(sender);
+
+ return ret;
+}
+
+ssize_t
+qemu_sendv_packet(VLANClientState *vc, const struct iovec *iov, int iovcnt)
+{
+ return qemu_sendv_packet_async(vc, iov, iovcnt, NULL);
+}
+
+static void config_error(Monitor *mon, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ if (mon) {
+ monitor_vprintf(mon, fmt, ap);
+ } else {
+ fprintf(stderr, "qemu: ");
+ vfprintf(stderr, fmt, ap);
+ exit(1);
+ }
+ va_end(ap);
}
#if defined(CONFIG_SLIRP)
/* slirp network adapter */
+struct slirp_config_str {
+ struct slirp_config_str *next;
+ const char *str;
+};
+
static int slirp_inited;
-static int slirp_restrict;
-static char *slirp_ip;
+static struct slirp_config_str *slirp_redirs;
+#ifndef _WIN32
+static const char *slirp_smb_export;
+#endif
static VLANClientState *slirp_vc;
+#ifndef _WIN32
+static void slirp_smb(const char *exported_dir);
+#endif
+static void slirp_redirection(Monitor *mon, const char *redir_str);
+
int slirp_can_output(void)
{
return !slirp_vc || qemu_can_send_packet(slirp_vc);
return slirp_inited;
}
-static void slirp_receive(void *opaque, const uint8_t *buf, int size)
+static ssize_t slirp_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
#ifdef DEBUG_SLIRP
printf("slirp input:\n");
hex_dump(stdout, buf, size);
#endif
slirp_input(buf, size);
+ return size;
}
-static int net_slirp_init(VLANState *vlan, const char *model, const char *name)
+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,
+ 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(slirp_restrict, slirp_ip);
+ slirp_init(restricted, ip);
+
+ while (slirp_redirs) {
+ struct slirp_config_str *config = slirp_redirs;
+
+ slirp_redirection(NULL, config->str);
+ slirp_redirs = config->next;
+ qemu_free(config);
+ }
+#ifndef _WIN32
+ if (slirp_smb_export) {
+ slirp_smb(slirp_smb_export);
+ }
+#endif
}
- slirp_vc = qemu_new_vlan_client(vlan, model, name,
- slirp_receive, NULL, NULL, NULL);
+
+ 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;
}
-void net_slirp_redir(const char *redir_str)
+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)
{
- int is_udp;
- char buf[256], *r;
- const char *p;
- struct in_addr guest_addr;
- int host_port, guest_port;
+ Monitor *mon = (Monitor *)opaque;
+ uint32_t h_addr;
+ uint32_t g_addr;
+ char buf[16];
- if (!slirp_inited) {
- slirp_inited = 1;
- slirp_init(slirp_restrict, slirp_ip);
+ h_addr = ntohl(faddr->s_addr);
+ g_addr = ntohl(laddr->s_addr);
+
+ 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);
+
+ 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);
+
+}
+
+static void net_slirp_redir_list(Monitor *mon)
+{
+ if (!mon)
+ return;
+
+ monitor_printf(mon, " Prot | Host Addr | HPort | Guest Addr | GPort\n");
+ monitor_printf(mon, " | | | | \n");
+ slirp_redir_loop(net_slirp_redir_print, mon);
+}
+
+static void net_slirp_redir_rm(Monitor *mon, const char *port_str)
+{
+ int host_port;
+ char buf[256] = "";
+ const char *p = port_str;
+ int is_udp = 0;
+ int n;
+
+ if (!mon)
+ return;
+
+ if (!port_str || !port_str[0])
+ goto fail_syntax;
+
+ get_str_sep(buf, sizeof(buf), &p, ':');
+
+ if (!strcmp(buf, "tcp") || buf[0] == '\0') {
+ is_udp = 0;
+ } else if (!strcmp(buf, "udp")) {
+ is_udp = 1;
+ } else {
+ goto fail_syntax;
}
+ host_port = atoi(p);
+
+ n = slirp_redir_rm(is_udp, host_port);
+
+ monitor_printf(mon, "removed %d redirections to %s port %d\n", n,
+ is_udp ? "udp" : "tcp", host_port);
+ return;
+
+ fail_syntax:
+ monitor_printf(mon, "invalid format\n");
+}
+
+static void slirp_redirection(Monitor *mon, const char *redir_str)
+{
+ struct in_addr guest_addr;
+ int host_port, guest_port;
+ const char *p;
+ char buf[256], *r;
+ int is_udp;
+
p = redir_str;
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
- goto fail;
- if (!strcmp(buf, "tcp")) {
+ if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+ 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;
+ if (get_str_sep(buf, sizeof(buf), &p, ':') < 0) {
+ goto fail_syntax;
+ }
host_port = strtol(buf, &r, 0);
- if (r == buf)
- goto fail;
+ if (r == buf) {
+ goto fail_syntax;
+ }
- if (get_str_sep(buf, sizeof(buf), &p, ':') < 0)
- goto fail;
+ 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))
- goto fail;
+ if (!inet_aton(buf, &guest_addr)) {
+ goto fail_syntax;
+ }
guest_port = strtol(p, &r, 0);
- if (r == p)
- goto fail;
+ if (r == p) {
+ 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);
+ config_error(mon, "could not set up redirection '%s'\n", redir_str);
}
return;
- fail:
- fprintf(stderr, "qemu: syntax: -redir [tcp|udp]:host-port:[guest-host]:guest-port\n");
- exit(1);
+
+ fail_syntax:
+ config_error(mon, "invalid redirection format '%s'\n", redir_str);
+}
+
+void net_slirp_redir(Monitor *mon, const char *redir_str, const char *redir_opt2)
+{
+ struct slirp_config_str *config;
+
+ 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 (!strcmp(redir_str, "remove")) {
+ net_slirp_redir_rm(mon, redir_opt2);
+ return;
+ }
+
+ if (!strcmp(redir_str, "list")) {
+ net_slirp_redir_list(mon);
+ return;
+ }
+
+ slirp_redirection(mon, redir_str);
}
#ifndef _WIN32
erase_dir(smb_dir);
}
-/* automatic user mode samba server configuration */
-void net_slirp_smb(const char *exported_dir)
+static void slirp_smb(const char *exported_dir)
{
char smb_conf[1024];
char smb_cmdline[1024];
FILE *f;
- if (!slirp_inited) {
- slirp_inited = 1;
- slirp_init(slirp_restrict, slirp_ip);
- }
-
/* XXX: better tmp dir construction */
snprintf(smb_dir, sizeof(smb_dir), "/tmp/qemu-smb.%ld", (long)getpid());
if (mkdir(smb_dir, 0700) < 0) {
slirp_add_exec(0, smb_cmdline, 4, 139);
}
+/* automatic user mode samba server configuration */
+void net_slirp_smb(const char *exported_dir)
+{
+ if (slirp_smb_export) {
+ fprintf(stderr, "-smb given twice\n");
+ exit(1);
+ }
+ slirp_smb_export = exported_dir;
+ if (slirp_inited) {
+ slirp_smb(exported_dir);
+ }
+}
+
#endif /* !defined(_WIN32) */
+
void do_info_slirp(Monitor *mon)
{
slirp_stats();
int fd;
char down_script[1024];
char down_script_arg[128];
+ uint8_t buf[4096];
} TAPState;
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,
+static ssize_t tap_receive_iov(VLANClientState *vc, const struct iovec *iov,
int iovcnt)
{
- TAPState *s = opaque;
+ TAPState *s = vc->opaque;
ssize_t len;
do {
return len;
}
-static void tap_receive(void *opaque, const uint8_t *buf, int size)
+static ssize_t tap_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
- TAPState *s = opaque;
- int ret;
- for(;;) {
- ret = write(s->fd, buf, size);
- if (ret < 0 && (errno == EINTR || errno == EAGAIN)) {
- } else {
- break;
- }
- }
+ TAPState *s = vc->opaque;
+ ssize_t len;
+
+ do {
+ len = write(s->fd, buf, size);
+ } while (len == -1 && (errno == EINTR || errno == EAGAIN));
+
+ return len;
}
-static void tap_send(void *opaque)
+static int tap_can_send(void *opaque)
{
TAPState *s = opaque;
- uint8_t buf[4096];
- int size;
+
+ return qemu_can_send_packet(s->vc);
+}
#ifdef __sun__
+static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
+{
struct strbuf sbuf;
int f = 0;
- sbuf.maxlen = sizeof(buf);
+
+ sbuf.maxlen = maxlen;
sbuf.buf = (char *)buf;
- size = getmsg(s->fd, NULL, &sbuf, &f) >=0 ? sbuf.len : -1;
+
+ return getmsg(tapfd, NULL, &sbuf, &f) >= 0 ? sbuf.len : -1;
+}
#else
- size = read(s->fd, buf, sizeof(buf));
+static ssize_t tap_read_packet(int tapfd, uint8_t *buf, int maxlen)
+{
+ return read(tapfd, buf, maxlen);
+}
#endif
- if (size > 0) {
- qemu_send_packet(s->vc, buf, size);
- }
+
+static void tap_send(void *opaque);
+
+static void tap_send_completed(VLANClientState *vc)
+{
+ TAPState *s = vc->opaque;
+
+ qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
+}
+
+static void tap_send(void *opaque)
+{
+ TAPState *s = opaque;
+ int size;
+
+ do {
+ size = tap_read_packet(s->fd, s->buf, sizeof(s->buf));
+ if (size <= 0) {
+ break;
+ }
+
+ size = qemu_send_packet_async(s->vc, s->buf, size, tap_send_completed);
+ if (size == 0) {
+ qemu_set_fd_handler2(s->fd, NULL, NULL, NULL, NULL);
+ }
+ } while (size > 0);
}
static void tap_cleanup(VLANClientState *vc)
s = qemu_mallocz(sizeof(TAPState));
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, tap_receive,
- NULL, tap_cleanup, s);
- s->vc->fd_readv = tap_receive_iov;
- qemu_set_fd_handler(s->fd, tap_send, NULL, s);
+ s->vc = qemu_new_vlan_client(vlan, model, name, NULL, tap_receive,
+ tap_receive_iov, tap_cleanup, s);
+ qemu_set_fd_handler2(s->fd, tap_can_send, tap_send, NULL, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str), "fd=%d", fd);
return s;
}
static int launch_script(const char *setup_script, const char *ifname, int fd)
{
+ sigset_t oldmask, mask;
int pid, status;
char *args[3];
char **parg;
- /* try to launch network script */
- pid = fork();
- if (pid >= 0) {
- if (pid == 0) {
- int open_max = sysconf (_SC_OPEN_MAX), i;
- for (i = 0; i < open_max; i++)
- if (i != STDIN_FILENO &&
- i != STDOUT_FILENO &&
- i != STDERR_FILENO &&
- i != fd)
- close(i);
-
- parg = args;
- *parg++ = (char *)setup_script;
- *parg++ = (char *)ifname;
- *parg++ = NULL;
- execv(setup_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",
- setup_script);
- return -1;
+ sigemptyset(&mask);
+ sigaddset(&mask, SIGCHLD);
+ sigprocmask(SIG_BLOCK, &mask, &oldmask);
+
+ /* try to launch network script */
+ pid = fork();
+ if (pid == 0) {
+ int open_max = sysconf(_SC_OPEN_MAX), i;
+
+ for (i = 0; i < open_max; i++) {
+ if (i != STDIN_FILENO &&
+ i != STDOUT_FILENO &&
+ i != STDERR_FILENO &&
+ i != fd) {
+ close(i);
}
}
- return 0;
+ parg = args;
+ *parg++ = (char *)setup_script;
+ *parg++ = (char *)ifname;
+ *parg++ = NULL;
+ execv(setup_script, args);
+ _exit(1);
+ } else if (pid > 0) {
+ while (waitpid(pid, &status, 0) != pid) {
+ /* loop */
+ }
+ sigprocmask(SIG_SETMASK, &oldmask, NULL);
+
+ if (WIFEXITED(status) && WEXITSTATUS(status) == 0) {
+ return 0;
+ }
+ }
+ fprintf(stderr, "%s: could not launch network script\n", setup_script);
+ return -1;
}
static int net_tap_init(VLANState *vlan, const char *model,
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);
}
}
-static void vde_from_qemu(void *opaque, const uint8_t *buf, int size)
+static ssize_t vde_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
- VDEState *s = opaque;
- int ret;
- for(;;) {
- ret = vde_send(s->vde, buf, size, 0);
- if (ret < 0 && errno == EINTR) {
- } else {
- break;
- }
- }
+ VDEState *s = vc->opaque;
+ ssize_t ret;
+
+ do {
+ ret = vde_send(s->vde, (const char *)buf, size, 0);
+ } while (ret < 0 && errno == EINTR);
+
+ return ret;
}
static void vde_cleanup(VLANClientState *vc)
};
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;
}
- s->vc = qemu_new_vlan_client(vlan, model, name, vde_from_qemu,
+ s->vc = qemu_new_vlan_client(vlan, model, name, NULL, vde_receive,
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",
} NetSocketListenState;
/* XXX: we consider we can send the whole packet without blocking */
-static void net_socket_receive(void *opaque, const uint8_t *buf, int size)
+static ssize_t net_socket_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
{
- NetSocketState *s = opaque;
+ NetSocketState *s = vc->opaque;
uint32_t len;
len = htonl(size);
send_all(s->fd, (const uint8_t *)&len, sizeof(len));
- send_all(s->fd, buf, size);
+ return send_all(s->fd, buf, size);
}
-static void net_socket_receive_dgram(void *opaque, const uint8_t *buf, int size)
+static ssize_t net_socket_receive_dgram(VLANClientState *vc, const uint8_t *buf, size_t size)
{
- NetSocketState *s = opaque;
- sendto(s->fd, buf, size, 0,
- (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
+ NetSocketState *s = vc->opaque;
+
+ return sendto(s->fd, (const void *)buf, size, 0,
+ (struct sockaddr *)&s->dgram_dst, sizeof(s->dgram_dst));
}
static void net_socket_send(void *opaque)
uint8_t buf1[4096];
const uint8_t *buf;
- size = recv(s->fd, buf1, sizeof(buf1), 0);
+ size = recv(s->fd, (void *)buf1, sizeof(buf1), 0);
if (size < 0) {
err = socket_error();
if (err != EWOULDBLOCK)
NetSocketState *s = opaque;
int size;
- size = recv(s->fd, s->buf, sizeof(s->buf), 0);
+ size = recv(s->fd, (void *)s->buf, sizeof(s->buf), 0);
if (size < 0)
return;
if (size == 0) {
s = qemu_mallocz(sizeof(NetSocketState));
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive_dgram,
+ s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive_dgram,
NULL, net_socket_cleanup, s);
qemu_set_fd_handler(s->fd, net_socket_send_dgram, NULL, s);
NetSocketState *s;
s = qemu_mallocz(sizeof(NetSocketState));
s->fd = fd;
- s->vc = qemu_new_vlan_client(vlan, model, name, net_socket_receive,
+ s->vc = qemu_new_vlan_client(vlan, model, name, NULL, net_socket_receive,
NULL, net_socket_cleanup, s);
snprintf(s->vc->info_str, sizeof(s->vc->info_str),
"socket: fd=%d", fd);
}
+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 ssize_t dump_receive(VLANClientState *vc, const uint8_t *buf, size_t size)
+{
+ DumpState *s = vc->opaque;
+ struct pcap_sf_pkthdr hdr;
+ int64_t ts;
+ int caplen;
+
+ /* Early return in case of previous error. */
+ if (s->fd < 0) {
+ return size;
+ }
+
+ 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;
+ }
+
+ return size;
+}
+
+static void net_dump_cleanup(VLANClientState *vc)
+{
+ DumpState *s = vc->opaque;
+
+ close(s->fd);
+ qemu_free(s);
+}
+
+static int net_dump_init(Monitor *mon, 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) {
+ config_error(mon, "-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)) {
+ config_error(mon, "-net dump write error: %s\n", strerror(errno));
+ close(s->fd);
+ qemu_free(s);
+ return -1;
+ }
+
+ s->pcap_vc = qemu_new_vlan_client(vlan, device, name, NULL, 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)
{
exit(exit_status);
}
-int net_client_init(const char *device, const char *p)
+int net_client_init(Monitor *mon, const char *device, const char *p)
{
+ static const char * const fd_params[] = {
+ "vlan", "name", "fd", NULL
+ };
char buf[1024];
int vlan_id, ret;
VLANState *vlan;
vlan = qemu_find_vlan(vlan_id);
if (get_param_value(buf, sizeof(buf), "name", p)) {
- name = strdup(buf);
+ name = qemu_strdup(buf);
}
if (!strcmp(device, "nic")) {
+ static const char * const nic_params[] = {
+ "vlan", "name", "macaddr", "model", NULL
+ };
NICInfo *nd;
uint8_t *macaddr;
int idx = nic_get_free_idx();
+ if (check_params(buf, sizeof(buf), nic_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
+ ret = -1;
+ goto out;
+ }
if (idx == -1 || nb_nics >= MAX_NICS) {
- fprintf(stderr, "Too Many NICs\n");
+ config_error(mon, "Too Many NICs\n");
ret = -1;
goto out;
}
if (get_param_value(buf, sizeof(buf), "macaddr", p)) {
if (parse_macaddr(macaddr, buf) < 0) {
- fprintf(stderr, "invalid syntax for ethernet address\n");
+ config_error(mon, "invalid syntax for ethernet address\n");
ret = -1;
goto out;
}
ret = idx;
} else
if (!strcmp(device, "none")) {
+ if (*p != '\0') {
+ config_error(mon, "'none' takes no parameters\n");
+ ret = -1;
+ goto out;
+ }
/* does nothing. It is needed to signal that no network cards
are wanted */
ret = 0;
} else
#ifdef CONFIG_SLIRP
if (!strcmp(device, "user")) {
+ static const char * const slirp_params[] = {
+ "vlan", "name", "hostname", "restrict", "ip", NULL
+ };
+ int restricted = 0;
+ char *ip = NULL;
+
+ 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), "hostname", p)) {
pstrcpy(slirp_hostname, sizeof(slirp_hostname), buf);
}
if (get_param_value(buf, sizeof(buf), "restrict", p)) {
- slirp_restrict = (buf[0] == 'y') ? 1 : 0;
+ restricted = (buf[0] == 'y') ? 1 : 0;
}
if (get_param_value(buf, sizeof(buf), "ip", p)) {
- slirp_ip = strdup(buf);
+ ip = qemu_strdup(buf);
}
vlan->nb_host_devs++;
- ret = net_slirp_init(vlan, device, name);
+ ret = net_slirp_init(vlan, device, name, restricted, ip);
+ qemu_free(ip);
} else if (!strcmp(device, "channel")) {
long port;
char name[20], *devname;
port = strtol(p, &devname, 10);
devname++;
if (port < 1 || port > 65535) {
- fprintf(stderr, "vmchannel wrong port number\n");
+ config_error(mon, "vmchannel wrong port number\n");
ret = -1;
goto out;
}
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);
+ config_error(mon, "could not open vmchannel device '%s'\n",
+ devname);
ret = -1;
goto out;
}
#endif
#ifdef _WIN32
if (!strcmp(device, "tap")) {
+ static const char * const tap_params[] = {
+ "vlan", "name", "ifname", NULL
+ };
char ifname[64];
+
+ if (check_params(buf, sizeof(buf), tap_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
+ ret = -1;
+ goto out;
+ }
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
- fprintf(stderr, "tap: no interface name\n");
+ config_error(mon, "tap: no interface name\n");
ret = -1;
goto out;
}
#elif defined (_AIX)
#else
if (!strcmp(device, "tap")) {
- char ifname[64];
+ char ifname[64], chkbuf[64];
char setup_script[1024], down_script[1024];
int fd;
vlan->nb_host_devs++;
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
+ 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);
fcntl(fd, F_SETFL, O_NONBLOCK);
net_tap_fd_init(vlan, device, name, fd);
ret = 0;
} else {
+ static const char * const tap_params[] = {
+ "vlan", "name", "ifname", "script", "downscript", NULL
+ };
+ if (check_params(chkbuf, sizeof(chkbuf), tap_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
+ ret = -1;
+ goto out;
+ }
if (get_param_value(ifname, sizeof(ifname), "ifname", p) <= 0) {
ifname[0] = '\0';
}
} else
#endif
if (!strcmp(device, "socket")) {
+ char chkbuf[64];
if (get_param_value(buf, sizeof(buf), "fd", p) > 0) {
int fd;
+ 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;
} else if (get_param_value(buf, sizeof(buf), "listen", p) > 0) {
+ static const char * const listen_params[] = {
+ "vlan", "name", "listen", NULL
+ };
+ if (check_params(chkbuf, sizeof(chkbuf), listen_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
+ ret = -1;
+ goto out;
+ }
ret = net_socket_listen_init(vlan, device, name, buf);
} else if (get_param_value(buf, sizeof(buf), "connect", p) > 0) {
+ static const char * const connect_params[] = {
+ "vlan", "name", "connect", NULL
+ };
+ if (check_params(chkbuf, sizeof(chkbuf), connect_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
+ ret = -1;
+ goto out;
+ }
ret = net_socket_connect_init(vlan, device, name, buf);
} else if (get_param_value(buf, sizeof(buf), "mcast", p) > 0) {
+ static const char * const mcast_params[] = {
+ "vlan", "name", "mcast", NULL
+ };
+ if (check_params(chkbuf, sizeof(chkbuf), mcast_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", chkbuf, p);
+ ret = -1;
+ goto out;
+ }
ret = net_socket_mcast_init(vlan, device, name, buf);
} else {
- fprintf(stderr, "Unknown socket options: %s\n", p);
+ config_error(mon, "Unknown socket options: %s\n", p);
ret = -1;
goto out;
}
} else
#ifdef CONFIG_VDE
if (!strcmp(device, "vde")) {
+ static const char * const vde_params[] = {
+ "vlan", "name", "sock", "port", "group", "mode", NULL
+ };
char vde_sock[1024], vde_group[512];
int vde_port, vde_mode;
+
+ if (check_params(buf, sizeof(buf), vde_params, p) < 0) {
+ config_error(mon, "invalid parameter '%s' in '%s'\n", buf, p);
+ ret = -1;
+ goto out;
+ }
vlan->nb_host_devs++;
if (get_param_value(vde_sock, sizeof(vde_sock), "sock", p) <= 0) {
vde_sock[0] = '\0';
ret = net_vde_init(vlan, device, name, vde_sock, vde_port, vde_group, vde_mode);
} else
#endif
- {
- fprintf(stderr, "Unknown network device: %s\n", device);
+ 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(mon, vlan, device, name, buf, len);
+ } else {
+ config_error(mon, "Unknown network device: %s\n", device);
ret = -1;
goto out;
}
if (ret < 0) {
- fprintf(stderr, "Could not initialize device '%s'\n", device);
+ config_error(mon, "Could not initialize device '%s'\n", device);
}
out:
- if (name)
- free(name);
+ qemu_free(name);
return ret;
}
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(mon, 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)
if (*p == ',')
p++;
- return net_client_init(device, p);
+ return net_client_init(NULL, device, p);
}
void do_info_network(Monitor *mon)
projects / qemu.git / blobdiff