static void net_socket_accept(void *opaque)
{
NetSocketState *s = opaque;
struct sockaddr_in saddr;
socklen_t len;
int fd;
for(;;) {
len = sizeof(saddr);
fd = qemu_accept(s->listen_fd, (struct sockaddr *)&saddr, &len);
if (fd < 0 && errno != EINTR) {
return;
} else if (fd >= 0) {
qemu_set_fd_handler(s->listen_fd, NULL, NULL, NULL);
break;
}
}
s->fd = fd;
s->nc.link_down = false;
net_socket_connect(s);
snprintf(s->nc.info_str, sizeof(s->nc.info_str),
"socket: connection from %s:%d",
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
}
static void unix_accept_incoming_migration(void *opaque)
{
struct sockaddr_un addr;
socklen_t addrlen = sizeof(addr);
int s = (intptr_t)opaque;
QEMUFile *f;
int c, err;
do {
c = qemu_accept(s, (struct sockaddr *)&addr, &addrlen);
err = errno;
} while (c < 0 && err == EINTR);
qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
close(s);
DPRINTF("accepted migration\n");
if (c < 0) {
error_report("could not accept migration connection (%s)",
strerror(err));
return;
}
f = qemu_fopen_socket(c, "rb");
if (f == NULL) {
error_report("could not qemu_fopen socket");
goto out;
}
process_incoming_migration(f);
return;
out:
close(c);
}
static gboolean listen_channel_accept(GIOChannel *channel,
GIOCondition condition, gpointer data)
{
GAState *s = data;
g_assert(channel != NULL);
int ret, conn_fd;
bool accepted = false;
struct sockaddr_un addr;
socklen_t addrlen = sizeof(addr);
conn_fd = qemu_accept(g_io_channel_unix_get_fd(s->listen_channel),
(struct sockaddr *)&addr, &addrlen);
if (conn_fd == -1) {
g_warning("error converting fd to gsocket: %s", strerror(errno));
goto out;
}
fcntl(conn_fd, F_SETFL, O_NONBLOCK);
ret = conn_channel_add(s, conn_fd);
if (ret) {
g_warning("error setting up connection");
goto out;
}
accepted = true;
out:
/* only accept 1 connection at a time */
return !accepted;
}
static gboolean ga_channel_listen_accept(GIOChannel *channel,
GIOCondition condition, gpointer data)
{
GAChannel *c = data;
int ret, client_fd;
bool accepted = false;
struct sockaddr_un addr;
socklen_t addrlen = sizeof(addr);
g_assert(channel != NULL);
client_fd = qemu_accept(g_io_channel_unix_get_fd(channel),
(struct sockaddr *)&addr, &addrlen);
if (client_fd == -1) {
g_warning("error converting fd to gsocket: %s", strerror(errno));
goto out;
}
qemu_set_nonblock(client_fd);
ret = ga_channel_client_add(c, client_fd);
if (ret) {
g_warning("error setting up connection");
close(client_fd);
goto out;
}
accepted = true;
out:
/* only accept 1 connection at a time */
return !accepted;
}
static void tcp_accept_incoming_migration(void *opaque)
{
struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
int s = (unsigned long)opaque;
QEMUFile *f;
int c;
do {
c = qemu_accept(s, (struct sockaddr *)&addr, &addrlen);
} while (c == -1 && socket_error() == EINTR);
DPRINTF("accepted migration\n");
if (c == -1) {
fprintf(stderr, "could not accept migration connection\n");
return;
}
f = qemu_fopen_socket(c);
if (f == NULL) {
fprintf(stderr, "could not qemu_fopen socket\n");
goto out;
}
process_incoming_migration(f);
qemu_fclose(f);
out:
qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
close(s);
close(c);
}
QIOChannelSocket *
qio_channel_socket_accept(QIOChannelSocket *ioc,
Error **errp)
{
QIOChannelSocket *cioc;
cioc = QIO_CHANNEL_SOCKET(object_new(TYPE_QIO_CHANNEL_SOCKET));
cioc->fd = -1;
cioc->remoteAddrLen = sizeof(ioc->remoteAddr);
cioc->localAddrLen = sizeof(ioc->localAddr);
#ifdef WIN32
QIO_CHANNEL(cioc)->event = CreateEvent(NULL, FALSE, FALSE, NULL);
#endif
retry:
trace_qio_channel_socket_accept(ioc);
cioc->fd = qemu_accept(ioc->fd, (struct sockaddr *)&cioc->remoteAddr,
&cioc->remoteAddrLen);
if (cioc->fd < 0) {
trace_qio_channel_socket_accept_fail(ioc);
if (errno == EINTR) {
goto retry;
}
goto error;
}
if (getsockname(cioc->fd, (struct sockaddr *)&cioc->localAddr,
&cioc->localAddrLen) < 0) {
error_setg_errno(errp, errno,
"Unable to query local socket address");
goto error;
}
#ifndef WIN32
if (cioc->localAddr.ss_family == AF_UNIX) {
QIOChannel *ioc_local = QIO_CHANNEL(cioc);
qio_channel_set_feature(ioc_local, QIO_CHANNEL_FEATURE_FD_PASS);
}
#endif /* WIN32 */
trace_qio_channel_socket_accept_complete(ioc, cioc, cioc->fd);
return cioc;
error:
object_unref(OBJECT(cioc));
return NULL;
}
static void net_socket_accept(void *opaque)
{
NetSocketListenState *s = opaque;
NetSocketState *s1;
struct sockaddr_in saddr;
socklen_t len;
int fd;
for(;;) {
len = sizeof(saddr);
fd = qemu_accept(s->fd, (struct sockaddr *)&saddr, &len);
if (fd < 0 && errno != EINTR) {
return;
} else if (fd >= 0) {
break;
}
}
s1 = net_socket_fd_init(s->vlan, s->model, s->name, fd, 1);
if (s1) {
snprintf(s1->nc.info_str, sizeof(s1->nc.info_str),
"socket: connection from %s:%d",
inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port));
}
}
static void accept_handler(void *opaque)
{
QemuHttpState *state = (QemuHttpState *)opaque;
if (state->connections == QEMU_MAX_HTTP_CONNECTIONS)
return;
int fd = qemu_accept(state->listen_fd, NULL, 0);
if (fd < 0)
return;
state->connections++;
int i;
int mindex = 0;
for (i = 0; i < QEMU_MAX_HTTP_CONNECTIONS; ++i) {
if (!state->clients[i].open) {
mindex = i;
break;
}
}
QemuHttpConnection *conn = &state->clients[mindex];
conn->fd = fd;
conn->open = 1;
conn->state = NEW_REQUEST;
conn->pos = 0;
conn->page_complete = 0;
conn->page_pos = -1;
conn->out_size = 0;
memset(conn->page, 0, sizeof(conn->page));
fcntl_setfl(conn->fd, O_NONBLOCK);
qemu_set_fd_handler(conn->fd, client_handler, NULL, (void *)conn);
}
