*/
#include "qemu/osdep.h"
+#include <getopt.h>
+#include <libgen.h>
+#include <pthread.h>
+
#include "qapi/error.h"
#include "qemu-common.h"
#include "qemu/cutils.h"
#include "qemu/log.h"
#include "qemu/systemd.h"
#include "block/snapshot.h"
-#include "qapi/util.h"
#include "qapi/qmp/qstring.h"
#include "qom/object_interfaces.h"
#include "io/channel-socket.h"
+#include "io/net-listener.h"
#include "crypto/init.h"
#include "trace/control.h"
-
-#include <getopt.h>
-#include <libgen.h>
-#include <pthread.h>
+#include "qemu-version.h"
#define SOCKET_PATH "/var/lock/qemu-nbd-%s"
#define QEMU_NBD_OPT_CACHE 256
static enum { RUNNING, TERMINATE, TERMINATING, TERMINATED } state;
static int shared = 1;
static int nb_fds;
-static QIOChannelSocket *server_ioc;
-static int server_watch = -1;
+static QIONetListener *server;
static QCryptoTLSCreds *tlscreds;
static void usage(const char *name)
" --detect-zeroes=MODE set detect-zeroes mode (off, on, unmap)\n"
" --image-opts treat FILE as a full set of image options\n"
"\n"
+QEMU_HELP_BOTTOM "\n"
, name, NBD_DEFAULT_PORT, "DEVICE");
}
static void version(const char *name)
{
printf(
-"%s version 0.0.1\n"
+"%s " QEMU_VERSION QEMU_PKGVERSION "\n"
"Written by Anthony Liguori.\n"
"\n"
+QEMU_COPYRIGHT "\n"
"This is free software; see the source for copying conditions. There is NO\n"
"warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n"
, name);
static void *nbd_client_thread(void *arg)
{
char *device = arg;
- off_t size;
- uint16_t nbdflags;
+ NBDExportInfo info = { .request_sizes = false, };
QIOChannelSocket *sioc;
int fd;
int ret;
goto out;
}
- ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL, &nbdflags,
- NULL, NULL, NULL,
- &size, &local_error);
+ ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL,
+ NULL, NULL, NULL, &info, &local_error);
if (ret < 0) {
if (local_error) {
error_report_err(local_error);
goto out_socket;
}
- ret = nbd_init(fd, sioc, nbdflags, size);
+ ret = nbd_init(fd, sioc, &info, &local_error);
if (ret < 0) {
+ error_report_err(local_error);
goto out_fd;
}
static int nbd_can_accept(void)
{
- return nb_fds < shared;
+ return state == RUNNING && nb_fds < shared;
}
static void nbd_export_closed(NBDExport *exp)
static void nbd_update_server_watch(void);
-static void nbd_client_closed(NBDClient *client)
+static void nbd_client_closed(NBDClient *client, bool negotiated)
{
nb_fds--;
- if (nb_fds == 0 && !persistent && state == RUNNING) {
+ if (negotiated && nb_fds == 0 && !persistent && state == RUNNING) {
state = TERMINATE;
}
nbd_update_server_watch();
nbd_client_put(client);
}
-static gboolean nbd_accept(QIOChannel *ioc, GIOCondition cond, gpointer opaque)
+static void nbd_accept(QIONetListener *listener, QIOChannelSocket *cioc,
+ gpointer opaque)
{
- QIOChannelSocket *cioc;
-
- cioc = qio_channel_socket_accept(QIO_CHANNEL_SOCKET(ioc),
- NULL);
- if (!cioc) {
- return TRUE;
- }
-
if (state >= TERMINATE) {
- object_unref(OBJECT(cioc));
- return TRUE;
+ return;
}
nb_fds++;
nbd_update_server_watch();
nbd_client_new(newproto ? NULL : exp, cioc,
tlscreds, NULL, nbd_client_closed);
- object_unref(OBJECT(cioc));
-
- return TRUE;
}
static void nbd_update_server_watch(void)
{
if (nbd_can_accept()) {
- if (server_watch == -1) {
- server_watch = qio_channel_add_watch(QIO_CHANNEL(server_ioc),
- G_IO_IN,
- nbd_accept,
- NULL, NULL);
- }
+ qio_net_listener_set_client_func(server, nbd_accept, NULL, NULL);
} else {
- if (server_watch != -1) {
- g_source_remove(server_watch);
- server_watch = -1;
- }
+ qio_net_listener_set_client_func(server, NULL, NULL, NULL);
}
}
sa_sigterm.sa_handler = termsig_handler;
sigaction(SIGTERM, &sa_sigterm, NULL);
+#ifdef CONFIG_POSIX
+ signal(SIGPIPE, SIG_IGN);
+#endif
+
module_call_init(MODULE_INIT_TRACE);
qcrypto_init(&error_fatal);
break;
case QEMU_NBD_OPT_DETECT_ZEROES:
detect_zeroes =
- qapi_enum_parse(BlockdevDetectZeroesOptions_lookup,
+ qapi_enum_parse(&BlockdevDetectZeroesOptions_lookup,
optarg,
- BLOCKDEV_DETECT_ZEROES_OPTIONS__MAX,
BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF,
&local_err);
if (local_err) {
snprintf(sockpath, 128, SOCKET_PATH, basename(device));
}
+ server = qio_net_listener_new();
if (socket_activation == 0) {
- server_ioc = qio_channel_socket_new();
saddr = nbd_build_socket_address(sockpath, bindto, port);
- if (qio_channel_socket_listen_sync(server_ioc, saddr, &local_err) < 0) {
- object_unref(OBJECT(server_ioc));
+ if (qio_net_listener_open_sync(server, saddr, &local_err) < 0) {
+ object_unref(OBJECT(server));
error_report_err(local_err);
- return 1;
+ exit(EXIT_FAILURE);
}
} else {
+ size_t i;
/* See comment in check_socket_activation above. */
- assert(socket_activation == 1);
- server_ioc = qio_channel_socket_new_fd(FIRST_SOCKET_ACTIVATION_FD,
- &local_err);
- if (server_ioc == NULL) {
- error_report("Failed to use socket activation: %s",
- error_get_pretty(local_err));
- exit(EXIT_FAILURE);
+ for (i = 0; i < socket_activation; i++) {
+ QIOChannelSocket *sioc;
+ sioc = qio_channel_socket_new_fd(FIRST_SOCKET_ACTIVATION_FD + i,
+ &local_err);
+ if (sioc == NULL) {
+ object_unref(OBJECT(server));
+ error_report("Failed to use socket activation: %s",
+ error_get_pretty(local_err));
+ exit(EXIT_FAILURE);
+ }
+ qio_net_listener_add(server, sioc);
+ object_unref(OBJECT(sioc));
}
}
projects / qemu.git / blobdiff