Adding qemu as a submodule of KVMFORNFV

This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>

1 files changed, 0 insertions, 959 deletions

diff --git a/qemu/qemu-nbd.c b/qemu/qemu-nbd.c
deleted file mode 100644
index c55b40ffc..000000000
--- a/qemu/qemu-nbd.c
+++ /dev/null
@@ -1,959 +0,0 @@
-/*
- *  Copyright (C) 2005  Anthony Liguori <anthony@codemonkey.ws>
- *
- *  Network Block Device
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; under version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "qemu/cutils.h"
-#include "sysemu/block-backend.h"
-#include "block/block_int.h"
-#include "block/nbd.h"
-#include "qemu/main-loop.h"
-#include "qemu/error-report.h"
-#include "qemu/config-file.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 "crypto/init.h"
-
-#include <getopt.h>
-#include <libgen.h>
-#include <pthread.h>
-
-#define SOCKET_PATH                "/var/lock/qemu-nbd-%s"
-#define QEMU_NBD_OPT_CACHE         256
-#define QEMU_NBD_OPT_AIO           257
-#define QEMU_NBD_OPT_DISCARD       258
-#define QEMU_NBD_OPT_DETECT_ZEROES 259
-#define QEMU_NBD_OPT_OBJECT        260
-#define QEMU_NBD_OPT_TLSCREDS      261
-#define QEMU_NBD_OPT_IMAGE_OPTS    262
-
-static NBDExport *exp;
-static bool newproto;
-static int verbose;
-static char *srcpath;
-static SocketAddress *saddr;
-static int persistent = 0;
-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 QCryptoTLSCreds *tlscreds;
-
-static void usage(const char *name)
-{
-    (printf) (
-"Usage: %s [OPTIONS] FILE\n"
-"QEMU Disk Network Block Device Server\n"
-"\n"
-"  -h, --help                display this help and exit\n"
-"  -V, --version             output version information and exit\n"
-"\n"
-"Connection properties:\n"
-"  -p, --port=PORT           port to listen on (default `%d')\n"
-"  -b, --bind=IFACE          interface to bind to (default `0.0.0.0')\n"
-"  -k, --socket=PATH         path to the unix socket\n"
-"                            (default '"SOCKET_PATH"')\n"
-"  -e, --shared=NUM          device can be shared by NUM clients (default '1')\n"
-"  -t, --persistent          don't exit on the last connection\n"
-"  -v, --verbose             display extra debugging information\n"
-"  -x, --export-name=NAME    expose export by name\n"
-"\n"
-"Exposing part of the image:\n"
-"  -o, --offset=OFFSET       offset into the image\n"
-"  -P, --partition=NUM       only expose partition NUM\n"
-"\n"
-"General purpose options:\n"
-"  --object type,id=ID,...   define an object such as 'secret' for providing\n"
-"                            passwords and/or encryption keys\n"
-#ifdef __linux__
-"Kernel NBD client support:\n"
-"  -c, --connect=DEV         connect FILE to the local NBD device DEV\n"
-"  -d, --disconnect          disconnect the specified device\n"
-"\n"
-#endif
-"\n"
-"Block device options:\n"
-"  -f, --format=FORMAT       set image format (raw, qcow2, ...)\n"
-"  -r, --read-only           export read-only\n"
-"  -s, --snapshot            use FILE as an external snapshot, create a temporary\n"
-"                            file with backing_file=FILE, redirect the write to\n"
-"                            the temporary one\n"
-"  -l, --load-snapshot=SNAPSHOT_PARAM\n"
-"                            load an internal snapshot inside FILE and export it\n"
-"                            as an read-only device, SNAPSHOT_PARAM format is\n"
-"                            'snapshot.id=[ID],snapshot.name=[NAME]', or\n"
-"                            '[ID_OR_NAME]'\n"
-"  -n, --nocache             disable host cache\n"
-"      --cache=MODE          set cache mode (none, writeback, ...)\n"
-"      --aio=MODE            set AIO mode (native or threads)\n"
-"      --discard=MODE        set discard mode (ignore, unmap)\n"
-"      --detect-zeroes=MODE  set detect-zeroes mode (off, on, unmap)\n"
-"      --image-opts          treat FILE as a full set of image options\n"
-"\n"
-"Report bugs to <qemu-devel@nongnu.org>\n"
-    , name, NBD_DEFAULT_PORT, "DEVICE");
-}
-
-static void version(const char *name)
-{
-    printf(
-"%s version 0.0.1\n"
-"Written by Anthony Liguori.\n"
-"\n"
-"Copyright (C) 2006 Anthony Liguori <anthony@codemonkey.ws>.\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);
-}
-
-struct partition_record
-{
-    uint8_t bootable;
-    uint8_t start_head;
-    uint32_t start_cylinder;
-    uint8_t start_sector;
-    uint8_t system;
-    uint8_t end_head;
-    uint8_t end_cylinder;
-    uint8_t end_sector;
-    uint32_t start_sector_abs;
-    uint32_t nb_sectors_abs;
-};
-
-static void read_partition(uint8_t *p, struct partition_record *r)
-{
-    r->bootable = p[0];
-    r->start_head = p[1];
-    r->start_cylinder = p[3] | ((p[2] << 2) & 0x0300);
-    r->start_sector = p[2] & 0x3f;
-    r->system = p[4];
-    r->end_head = p[5];
-    r->end_cylinder = p[7] | ((p[6] << 2) & 0x300);
-    r->end_sector = p[6] & 0x3f;
-
-    r->start_sector_abs = le32_to_cpup((uint32_t *)(p +  8));
-    r->nb_sectors_abs   = le32_to_cpup((uint32_t *)(p + 12));
-}
-
-static int find_partition(BlockBackend *blk, int partition,
-                          off_t *offset, off_t *size)
-{
-    struct partition_record mbr[4];
-    uint8_t data[512];
-    int i;
-    int ext_partnum = 4;
-    int ret;
-
-    if ((ret = blk_read(blk, 0, data, 1)) < 0) {
-        error_report("error while reading: %s", strerror(-ret));
-        exit(EXIT_FAILURE);
-    }
-
-    if (data[510] != 0x55 || data[511] != 0xaa) {
-        return -EINVAL;
-    }
-
-    for (i = 0; i < 4; i++) {
-        read_partition(&data[446 + 16 * i], &mbr[i]);
-
-        if (!mbr[i].system || !mbr[i].nb_sectors_abs) {
-            continue;
-        }
-
-        if (mbr[i].system == 0xF || mbr[i].system == 0x5) {
-            struct partition_record ext[4];
-            uint8_t data1[512];
-            int j;
-
-            if ((ret = blk_read(blk, mbr[i].start_sector_abs, data1, 1)) < 0) {
-                error_report("error while reading: %s", strerror(-ret));
-                exit(EXIT_FAILURE);
-            }
-
-            for (j = 0; j < 4; j++) {
-                read_partition(&data1[446 + 16 * j], &ext[j]);
-                if (!ext[j].system || !ext[j].nb_sectors_abs) {
-                    continue;
-                }
-
-                if ((ext_partnum + j + 1) == partition) {
-                    *offset = (uint64_t)ext[j].start_sector_abs << 9;
-                    *size = (uint64_t)ext[j].nb_sectors_abs << 9;
-                    return 0;
-                }
-            }
-            ext_partnum += 4;
-        } else if ((i + 1) == partition) {
-            *offset = (uint64_t)mbr[i].start_sector_abs << 9;
-            *size = (uint64_t)mbr[i].nb_sectors_abs << 9;
-            return 0;
-        }
-    }
-
-    return -ENOENT;
-}
-
-static void termsig_handler(int signum)
-{
-    atomic_cmpxchg(&state, RUNNING, TERMINATE);
-    qemu_notify_event();
-}
-
-
-static void *show_parts(void *arg)
-{
-    char *device = arg;
-    int nbd;
-
-    /* linux just needs an open() to trigger
-     * the partition table update
-     * but remember to load the module with max_part != 0 :
-     *     modprobe nbd max_part=63
-     */
-    nbd = open(device, O_RDWR);
-    if (nbd >= 0) {
-        close(nbd);
-    }
-    return NULL;
-}
-
-static void *nbd_client_thread(void *arg)
-{
-    char *device = arg;
-    off_t size;
-    uint32_t nbdflags;
-    QIOChannelSocket *sioc;
-    int fd;
-    int ret;
-    pthread_t show_parts_thread;
-    Error *local_error = NULL;
-
-    sioc = qio_channel_socket_new();
-    if (qio_channel_socket_connect_sync(sioc,
-                                        saddr,
-                                        &local_error) < 0) {
-        error_report_err(local_error);
-        goto out;
-    }
-
-    ret = nbd_receive_negotiate(QIO_CHANNEL(sioc), NULL, &nbdflags,
-                                NULL, NULL, NULL,
-                                &size, &local_error);
-    if (ret < 0) {
-        if (local_error) {
-            error_report_err(local_error);
-        }
-        goto out_socket;
-    }
-
-    fd = open(device, O_RDWR);
-    if (fd < 0) {
-        /* Linux-only, we can use %m in printf.  */
-        error_report("Failed to open %s: %m", device);
-        goto out_socket;
-    }
-
-    ret = nbd_init(fd, sioc, nbdflags, size);
-    if (ret < 0) {
-        goto out_fd;
-    }
-
-    /* update partition table */
-    pthread_create(&show_parts_thread, NULL, show_parts, device);
-
-    if (verbose) {
-        fprintf(stderr, "NBD device %s is now connected to %s\n",
-                device, srcpath);
-    } else {
-        /* Close stderr so that the qemu-nbd process exits.  */
-        dup2(STDOUT_FILENO, STDERR_FILENO);
-    }
-
-    ret = nbd_client(fd);
-    if (ret) {
-        goto out_fd;
-    }
-    close(fd);
-    object_unref(OBJECT(sioc));
-    kill(getpid(), SIGTERM);
-    return (void *) EXIT_SUCCESS;
-
-out_fd:
-    close(fd);
-out_socket:
-    object_unref(OBJECT(sioc));
-out:
-    kill(getpid(), SIGTERM);
-    return (void *) EXIT_FAILURE;
-}
-
-static int nbd_can_accept(void)
-{
-    return nb_fds < shared;
-}
-
-static void nbd_export_closed(NBDExport *exp)
-{
-    assert(state == TERMINATING);
-    state = TERMINATED;
-}
-
-static void nbd_update_server_watch(void);
-
-static void nbd_client_closed(NBDClient *client)
-{
-    nb_fds--;
-    if (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)
-{
-    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;
-    }
-
-    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);
-        }
-    } else {
-        if (server_watch != -1) {
-            g_source_remove(server_watch);
-            server_watch = -1;
-        }
-    }
-}
-
-
-static SocketAddress *nbd_build_socket_address(const char *sockpath,
-                                               const char *bindto,
-                                               const char *port)
-{
-    SocketAddress *saddr;
-
-    saddr = g_new0(SocketAddress, 1);
-    if (sockpath) {
-        saddr->type = SOCKET_ADDRESS_KIND_UNIX;
-        saddr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
-        saddr->u.q_unix.data->path = g_strdup(sockpath);
-    } else {
-        InetSocketAddress *inet;
-        saddr->type = SOCKET_ADDRESS_KIND_INET;
-        inet = saddr->u.inet.data = g_new0(InetSocketAddress, 1);
-        inet->host = g_strdup(bindto);
-        if (port) {
-            inet->port = g_strdup(port);
-        } else  {
-            inet->port = g_strdup_printf("%d", NBD_DEFAULT_PORT);
-        }
-    }
-
-    return saddr;
-}
-
-
-static QemuOptsList file_opts = {
-    .name = "file",
-    .implied_opt_name = "file",
-    .head = QTAILQ_HEAD_INITIALIZER(file_opts.head),
-    .desc = {
-        /* no elements => accept any params */
-        { /* end of list */ }
-    },
-};
-
-static QemuOptsList qemu_object_opts = {
-    .name = "object",
-    .implied_opt_name = "qom-type",
-    .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head),
-    .desc = {
-        { }
-    },
-};
-
-
-
-static QCryptoTLSCreds *nbd_get_tls_creds(const char *id, Error **errp)
-{
-    Object *obj;
-    QCryptoTLSCreds *creds;
-
-    obj = object_resolve_path_component(
-        object_get_objects_root(), id);
-    if (!obj) {
-        error_setg(errp, "No TLS credentials with id '%s'",
-                   id);
-        return NULL;
-    }
-    creds = (QCryptoTLSCreds *)
-        object_dynamic_cast(obj, TYPE_QCRYPTO_TLS_CREDS);
-    if (!creds) {
-        error_setg(errp, "Object with id '%s' is not TLS credentials",
-                   id);
-        return NULL;
-    }
-
-    if (creds->endpoint != QCRYPTO_TLS_CREDS_ENDPOINT_SERVER) {
-        error_setg(errp,
-                   "Expecting TLS credentials with a server endpoint");
-        return NULL;
-    }
-    object_ref(obj);
-    return creds;
-}
-
-
-int main(int argc, char **argv)
-{
-    BlockBackend *blk;
-    BlockDriverState *bs;
-    off_t dev_offset = 0;
-    uint32_t nbdflags = 0;
-    bool disconnect = false;
-    const char *bindto = "0.0.0.0";
-    const char *port = NULL;
-    char *sockpath = NULL;
-    char *device = NULL;
-    off_t fd_size;
-    QemuOpts *sn_opts = NULL;
-    const char *sn_id_or_name = NULL;
-    const char *sopt = "hVb:o:p:rsnP:c:dvk:e:f:tl:x:";
-    struct option lopt[] = {
-        { "help", no_argument, NULL, 'h' },
-        { "version", no_argument, NULL, 'V' },
-        { "bind", required_argument, NULL, 'b' },
-        { "port", required_argument, NULL, 'p' },
-        { "socket", required_argument, NULL, 'k' },
-        { "offset", required_argument, NULL, 'o' },
-        { "read-only", no_argument, NULL, 'r' },
-        { "partition", required_argument, NULL, 'P' },
-        { "connect", required_argument, NULL, 'c' },
-        { "disconnect", no_argument, NULL, 'd' },
-        { "snapshot", no_argument, NULL, 's' },
-        { "load-snapshot", required_argument, NULL, 'l' },
-        { "nocache", no_argument, NULL, 'n' },
-        { "cache", required_argument, NULL, QEMU_NBD_OPT_CACHE },
-        { "aio", required_argument, NULL, QEMU_NBD_OPT_AIO },
-        { "discard", required_argument, NULL, QEMU_NBD_OPT_DISCARD },
-        { "detect-zeroes", required_argument, NULL,
-          QEMU_NBD_OPT_DETECT_ZEROES },
-        { "shared", required_argument, NULL, 'e' },
-        { "format", required_argument, NULL, 'f' },
-        { "persistent", no_argument, NULL, 't' },
-        { "verbose", no_argument, NULL, 'v' },
-        { "object", required_argument, NULL, QEMU_NBD_OPT_OBJECT },
-        { "export-name", required_argument, NULL, 'x' },
-        { "tls-creds", required_argument, NULL, QEMU_NBD_OPT_TLSCREDS },
-        { "image-opts", no_argument, NULL, QEMU_NBD_OPT_IMAGE_OPTS },
-        { NULL, 0, NULL, 0 }
-    };
-    int ch;
-    int opt_ind = 0;
-    char *end;
-    int flags = BDRV_O_RDWR;
-    int partition = -1;
-    int ret = 0;
-    bool seen_cache = false;
-    bool seen_discard = false;
-    bool seen_aio = false;
-    pthread_t client_thread;
-    const char *fmt = NULL;
-    Error *local_err = NULL;
-    BlockdevDetectZeroesOptions detect_zeroes = BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF;
-    QDict *options = NULL;
-    const char *export_name = NULL;
-    const char *tlscredsid = NULL;
-    bool imageOpts = false;
-    bool writethrough = true;
-
-    /* The client thread uses SIGTERM to interrupt the server.  A signal
-     * handler ensures that "qemu-nbd -v -c" exits with a nice status code.
-     */
-    struct sigaction sa_sigterm;
-    memset(&sa_sigterm, 0, sizeof(sa_sigterm));
-    sa_sigterm.sa_handler = termsig_handler;
-    sigaction(SIGTERM, &sa_sigterm, NULL);
-
-    if (qcrypto_init(&local_err) < 0) {
-        error_reportf_err(local_err, "cannot initialize crypto: ");
-        exit(1);
-    }
-
-    module_call_init(MODULE_INIT_QOM);
-    qemu_add_opts(&qemu_object_opts);
-    qemu_init_exec_dir(argv[0]);
-
-    while ((ch = getopt_long(argc, argv, sopt, lopt, &opt_ind)) != -1) {
-        switch (ch) {
-        case 's':
-            flags |= BDRV_O_SNAPSHOT;
-            break;
-        case 'n':
-            optarg = (char *) "none";
-            /* fallthrough */
-        case QEMU_NBD_OPT_CACHE:
-            if (seen_cache) {
-                error_report("-n and --cache can only be specified once");
-                exit(EXIT_FAILURE);
-            }
-            seen_cache = true;
-            if (bdrv_parse_cache_mode(optarg, &flags, &writethrough) == -1) {
-                error_report("Invalid cache mode `%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case QEMU_NBD_OPT_AIO:
-            if (seen_aio) {
-                error_report("--aio can only be specified once");
-                exit(EXIT_FAILURE);
-            }
-            seen_aio = true;
-            if (!strcmp(optarg, "native")) {
-                flags |= BDRV_O_NATIVE_AIO;
-            } else if (!strcmp(optarg, "threads")) {
-                /* this is the default */
-            } else {
-               error_report("invalid aio mode `%s'", optarg);
-               exit(EXIT_FAILURE);
-            }
-            break;
-        case QEMU_NBD_OPT_DISCARD:
-            if (seen_discard) {
-                error_report("--discard can only be specified once");
-                exit(EXIT_FAILURE);
-            }
-            seen_discard = true;
-            if (bdrv_parse_discard_flags(optarg, &flags) == -1) {
-                error_report("Invalid discard mode `%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case QEMU_NBD_OPT_DETECT_ZEROES:
-            detect_zeroes =
-                qapi_enum_parse(BlockdevDetectZeroesOptions_lookup,
-                                optarg,
-                                BLOCKDEV_DETECT_ZEROES_OPTIONS__MAX,
-                                BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF,
-                                &local_err);
-            if (local_err) {
-                error_reportf_err(local_err,
-                                  "Failed to parse detect_zeroes mode: ");
-                exit(EXIT_FAILURE);
-            }
-            if (detect_zeroes == BLOCKDEV_DETECT_ZEROES_OPTIONS_UNMAP &&
-                !(flags & BDRV_O_UNMAP)) {
-                error_report("setting detect-zeroes to unmap is not allowed "
-                             "without setting discard operation to unmap");
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case 'b':
-            bindto = optarg;
-            break;
-        case 'p':
-            port = optarg;
-            break;
-        case 'o':
-                dev_offset = strtoll (optarg, &end, 0);
-            if (*end) {
-                error_report("Invalid offset `%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            if (dev_offset < 0) {
-                error_report("Offset must be positive `%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case 'l':
-            if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) {
-                sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts,
-                                                  optarg, false);
-                if (!sn_opts) {
-                    error_report("Failed in parsing snapshot param `%s'",
-                                 optarg);
-                    exit(EXIT_FAILURE);
-                }
-            } else {
-                sn_id_or_name = optarg;
-            }
-            /* fall through */
-        case 'r':
-            nbdflags |= NBD_FLAG_READ_ONLY;
-            flags &= ~BDRV_O_RDWR;
-            break;
-        case 'P':
-            partition = strtol(optarg, &end, 0);
-            if (*end) {
-                error_report("Invalid partition `%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            if (partition < 1 || partition > 8) {
-                error_report("Invalid partition %d", partition);
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case 'k':
-            sockpath = optarg;
-            if (sockpath[0] != '/') {
-                error_report("socket path must be absolute");
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case 'd':
-            disconnect = true;
-            break;
-        case 'c':
-            device = optarg;
-            break;
-        case 'e':
-            shared = strtol(optarg, &end, 0);
-            if (*end) {
-                error_report("Invalid shared device number '%s'", optarg);
-                exit(EXIT_FAILURE);
-            }
-            if (shared < 1) {
-                error_report("Shared device number must be greater than 0");
-                exit(EXIT_FAILURE);
-            }
-            break;
-        case 'f':
-            fmt = optarg;
-            break;
-        case 't':
-            persistent = 1;
-            break;
-        case 'x':
-            export_name = optarg;
-            break;
-        case 'v':
-            verbose = 1;
-            break;
-        case 'V':
-            version(argv[0]);
-            exit(0);
-            break;
-        case 'h':
-            usage(argv[0]);
-            exit(0);
-            break;
-        case '?':
-            error_report("Try `%s --help' for more information.", argv[0]);
-            exit(EXIT_FAILURE);
-        case QEMU_NBD_OPT_OBJECT: {
-            QemuOpts *opts;
-            opts = qemu_opts_parse_noisily(&qemu_object_opts,
-                                           optarg, true);
-            if (!opts) {
-                exit(EXIT_FAILURE);
-            }
-        }   break;
-        case QEMU_NBD_OPT_TLSCREDS:
-            tlscredsid = optarg;
-            break;
-        case QEMU_NBD_OPT_IMAGE_OPTS:
-            imageOpts = true;
-            break;
-        }
-    }
-
-    if ((argc - optind) != 1) {
-        error_report("Invalid number of arguments");
-        error_printf("Try `%s --help' for more information.\n", argv[0]);
-        exit(EXIT_FAILURE);
-    }
-
-    if (qemu_opts_foreach(&qemu_object_opts,
-                          user_creatable_add_opts_foreach,
-                          NULL, NULL)) {
-        exit(EXIT_FAILURE);
-    }
-
-    if (tlscredsid) {
-        if (sockpath) {
-            error_report("TLS is only supported with IPv4/IPv6");
-            exit(EXIT_FAILURE);
-        }
-        if (device) {
-            error_report("TLS is not supported with a host device");
-            exit(EXIT_FAILURE);
-        }
-        if (!export_name) {
-            /* Set the default NBD protocol export name, since
-             * we *must* use new style protocol for TLS */
-            export_name = "";
-        }
-        tlscreds = nbd_get_tls_creds(tlscredsid, &local_err);
-        if (local_err) {
-            error_report("Failed to get TLS creds %s",
-                         error_get_pretty(local_err));
-            exit(EXIT_FAILURE);
-        }
-    }
-
-    if (disconnect) {
-        int nbdfd = open(argv[optind], O_RDWR);
-        if (nbdfd < 0) {
-            error_report("Cannot open %s: %s", argv[optind],
-                         strerror(errno));
-            exit(EXIT_FAILURE);
-        }
-        nbd_disconnect(nbdfd);
-
-        close(nbdfd);
-
-        printf("%s disconnected\n", argv[optind]);
-
-        return 0;
-    }
-
-    if (device && !verbose) {
-        int stderr_fd[2];
-        pid_t pid;
-        int ret;
-
-        if (qemu_pipe(stderr_fd) < 0) {
-            error_report("Error setting up communication pipe: %s",
-                         strerror(errno));
-            exit(EXIT_FAILURE);
-        }
-
-        /* Now daemonize, but keep a communication channel open to
-         * print errors and exit with the proper status code.
-         */
-        pid = fork();
-        if (pid < 0) {
-            error_report("Failed to fork: %s", strerror(errno));
-            exit(EXIT_FAILURE);
-        } else if (pid == 0) {
-            close(stderr_fd[0]);
-            ret = qemu_daemon(1, 0);
-
-            /* Temporarily redirect stderr to the parent's pipe...  */
-            dup2(stderr_fd[1], STDERR_FILENO);
-            if (ret < 0) {
-                error_report("Failed to daemonize: %s", strerror(errno));
-                exit(EXIT_FAILURE);
-            }
-
-            /* ... close the descriptor we inherited and go on.  */
-            close(stderr_fd[1]);
-        } else {
-            bool errors = false;
-            char *buf;
-
-            /* In the parent.  Print error messages from the child until
-             * it closes the pipe.
-             */
-            close(stderr_fd[1]);
-            buf = g_malloc(1024);
-            while ((ret = read(stderr_fd[0], buf, 1024)) > 0) {
-                errors = true;
-                ret = qemu_write_full(STDERR_FILENO, buf, ret);
-                if (ret < 0) {
-                    exit(EXIT_FAILURE);
-                }
-            }
-            if (ret < 0) {
-                error_report("Cannot read from daemon: %s",
-                             strerror(errno));
-                exit(EXIT_FAILURE);
-            }
-
-            /* Usually the daemon should not print any message.
-             * Exit with zero status in that case.
-             */
-            exit(errors);
-        }
-    }
-
-    if (device != NULL && sockpath == NULL) {
-        sockpath = g_malloc(128);
-        snprintf(sockpath, 128, SOCKET_PATH, basename(device));
-    }
-
-    saddr = nbd_build_socket_address(sockpath, bindto, port);
-
-    if (qemu_init_main_loop(&local_err)) {
-        error_report_err(local_err);
-        exit(EXIT_FAILURE);
-    }
-    bdrv_init();
-    atexit(bdrv_close_all);
-
-    srcpath = argv[optind];
-    if (imageOpts) {
-        QemuOpts *opts;
-        if (fmt) {
-            error_report("--image-opts and -f are mutually exclusive");
-            exit(EXIT_FAILURE);
-        }
-        opts = qemu_opts_parse_noisily(&file_opts, srcpath, true);
-        if (!opts) {
-            qemu_opts_reset(&file_opts);
-            exit(EXIT_FAILURE);
-        }
-        options = qemu_opts_to_qdict(opts, NULL);
-        qemu_opts_reset(&file_opts);
-        blk = blk_new_open(NULL, NULL, options, flags, &local_err);
-    } else {
-        if (fmt) {
-            options = qdict_new();
-            qdict_put(options, "driver", qstring_from_str(fmt));
-        }
-        blk = blk_new_open(srcpath, NULL, options, flags, &local_err);
-    }
-
-    if (!blk) {
-        error_reportf_err(local_err, "Failed to blk_new_open '%s': ",
-                          argv[optind]);
-        exit(EXIT_FAILURE);
-    }
-    bs = blk_bs(blk);
-
-    blk_set_enable_write_cache(blk, !writethrough);
-
-    if (sn_opts) {
-        ret = bdrv_snapshot_load_tmp(bs,
-                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID),
-                                     qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME),
-                                     &local_err);
-    } else if (sn_id_or_name) {
-        ret = bdrv_snapshot_load_tmp_by_id_or_name(bs, sn_id_or_name,
-                                                   &local_err);
-    }
-    if (ret < 0) {
-        error_reportf_err(local_err, "Failed to load snapshot: ");
-        exit(EXIT_FAILURE);
-    }
-
-    bs->detect_zeroes = detect_zeroes;
-    fd_size = blk_getlength(blk);
-    if (fd_size < 0) {
-        error_report("Failed to determine the image length: %s",
-                     strerror(-fd_size));
-        exit(EXIT_FAILURE);
-    }
-
-    if (partition != -1) {
-        ret = find_partition(blk, partition, &dev_offset, &fd_size);
-        if (ret < 0) {
-            error_report("Could not find partition %d: %s", partition,
-                         strerror(-ret));
-            exit(EXIT_FAILURE);
-        }
-    }
-
-    exp = nbd_export_new(blk, dev_offset, fd_size, nbdflags, nbd_export_closed,
-                         &local_err);
-    if (!exp) {
-        error_report_err(local_err);
-        exit(EXIT_FAILURE);
-    }
-    if (export_name) {
-        nbd_export_set_name(exp, export_name);
-        newproto = true;
-    }
-
-    server_ioc = qio_channel_socket_new();
-    if (qio_channel_socket_listen_sync(server_ioc, saddr, &local_err) < 0) {
-        object_unref(OBJECT(server_ioc));
-        error_report_err(local_err);
-        return 1;
-    }
-
-    if (device) {
-        int ret;
-
-        ret = pthread_create(&client_thread, NULL, nbd_client_thread, device);
-        if (ret != 0) {
-            error_report("Failed to create client thread: %s", strerror(ret));
-            exit(EXIT_FAILURE);
-        }
-    } else {
-        /* Shut up GCC warnings.  */
-        memset(&client_thread, 0, sizeof(client_thread));
-    }
-
-    nbd_update_server_watch();
-
-    /* now when the initialization is (almost) complete, chdir("/")
-     * to free any busy filesystems */
-    if (chdir("/") < 0) {
-        error_report("Could not chdir to root directory: %s",
-                     strerror(errno));
-        exit(EXIT_FAILURE);
-    }
-
-    state = RUNNING;
-    do {
-        main_loop_wait(false);
-        if (state == TERMINATE) {
-            state = TERMINATING;
-            nbd_export_close(exp);
-            nbd_export_put(exp);
-            exp = NULL;
-        }
-    } while (state != TERMINATED);
-
-    blk_unref(blk);
-    if (sockpath) {
-        unlink(sockpath);
-    }
-
-    qemu_opts_del(sn_opts);
-
-    if (device) {
-        void *ret;
-        pthread_join(client_thread, &ret);
-        exit(ret != NULL);
-    } else {
-        exit(EXIT_SUCCESS);
-    }
-}