static void qdict_haskey_test(void)
{
const char *key = "test";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qint_from_int(0));
g_assert(qdict_haskey(tests_dict, key) == 1);
QDECREF(tests_dict);
}
static void qdict_array_entries_test(void)
{
QDict *dict = qdict_new();
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);
qdict_put_int(dict, "bar", 0);
qdict_put_int(dict, "baz.0", 0);
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);
qdict_put_int(dict, "foo.1", 0);
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
qdict_put_int(dict, "foo.0", 0);
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 2);
qdict_put_int(dict, "foo.bar", 0);
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
qdict_del(dict, "foo.bar");
qdict_put_int(dict, "foo.2.a", 0);
qdict_put_int(dict, "foo.2.b", 0);
qdict_put_int(dict, "foo.2.c", 0);
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 3);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
qobject_unref(dict);
dict = qdict_new();
qdict_put_int(dict, "1", 0);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
qdict_put_int(dict, "0", 0);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, 2);
qdict_put_int(dict, "bar", 0);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
qdict_del(dict, "bar");
qdict_put_int(dict, "2.a", 0);
qdict_put_int(dict, "2.b", 0);
qdict_put_int(dict, "2.c", 0);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, 3);
qobject_unref(dict);
}
/* Complex type */
static void test_event_d(TestEventData *data,
const void *unused)
{
UserDefOne struct1;
EventStructOne a;
QDict *d, *d_data, *d_a, *d_struct1;
struct1.integer = 2;
struct1.string = g_strdup("test1");
struct1.has_enum1 = true;
struct1.enum1 = ENUM_ONE_VALUE1;
a.struct1 = &struct1;
a.string = g_strdup("test2");
a.has_enum2 = true;
a.enum2 = ENUM_ONE_VALUE2;
d_struct1 = qdict_new();
qdict_put(d_struct1, "integer", qint_from_int(2));
qdict_put(d_struct1, "string", qstring_from_str("test1"));
qdict_put(d_struct1, "enum1", qstring_from_str("value1"));
d_a = qdict_new();
qdict_put(d_a, "struct1", d_struct1);
qdict_put(d_a, "string", qstring_from_str("test2"));
qdict_put(d_a, "enum2", qstring_from_str("value2"));
d_data = qdict_new();
qdict_put(d_data, "a", d_a);
qdict_put(d_data, "b", qstring_from_str("test3"));
qdict_put(d_data, "enum3", qstring_from_str("value3"));
d = data->expect;
qdict_put(d, "event", qstring_from_str("EVENT_D"));
qdict_put(d, "data", d_data);
qapi_event_send_event_d(&a, "test3", false, NULL, true, ENUM_ONE_VALUE3,
&error_abort);
g_free(struct1.string);
g_free(a.string);
}
static void qdict_array_entries_test(void)
{
QDict *dict = qdict_new();
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);
qdict_put(dict, "bar", qint_from_int(0));
qdict_put(dict, "baz.0", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 0);
qdict_put(dict, "foo.1", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
qdict_put(dict, "foo.0", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 2);
qdict_put(dict, "foo.bar", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, -EINVAL);
qdict_del(dict, "foo.bar");
qdict_put(dict, "foo.2.a", qint_from_int(0));
qdict_put(dict, "foo.2.b", qint_from_int(0));
qdict_put(dict, "foo.2.c", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, "foo."), ==, 3);
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
QDECREF(dict);
dict = qdict_new();
qdict_put(dict, "1", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
qdict_put(dict, "0", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, ""), ==, 2);
qdict_put(dict, "bar", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, ""), ==, -EINVAL);
qdict_del(dict, "bar");
qdict_put(dict, "2.a", qint_from_int(0));
qdict_put(dict, "2.b", qint_from_int(0));
qdict_put(dict, "2.c", qint_from_int(0));
g_assert_cmpint(qdict_array_entries(dict, ""), ==, 3);
QDECREF(dict);
}
static void qdict_defaults_test(void)
{
QDict *dict, *copy;
dict = qdict_new();
copy = qdict_new();
qdict_set_default_str(dict, "foo", "abc");
qdict_set_default_str(dict, "foo", "def");
g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "abc");
qdict_set_default_str(dict, "bar", "ghi");
qdict_copy_default(copy, dict, "foo");
g_assert_cmpstr(qdict_get_str(copy, "foo"), ==, "abc");
qdict_set_default_str(copy, "bar", "xyz");
qdict_copy_default(copy, dict, "bar");
g_assert_cmpstr(qdict_get_str(copy, "bar"), ==, "xyz");
QDECREF(copy);
QDECREF(dict);
}
static void qdict_crumple_test_bad_inputs(void)
{
QDict *src;
Error *error = NULL;
src = qdict_new();
/* rule.0 can't be both a string and a dict */
qdict_put(src, "rule.0", qstring_from_str("fred"));
qdict_put(src, "rule.0.policy", qstring_from_str("allow"));
g_assert(qdict_crumple(src, &error) == NULL);
g_assert(error != NULL);
error_free(error);
error = NULL;
QDECREF(src);
src = qdict_new();
/* rule can't be both a list and a dict */
qdict_put(src, "rule.0", qstring_from_str("fred"));
qdict_put(src, "rule.a", qstring_from_str("allow"));
g_assert(qdict_crumple(src, &error) == NULL);
g_assert(error != NULL);
error_free(error);
error = NULL;
QDECREF(src);
src = qdict_new();
/* The input should be flat, ie no dicts or lists */
qdict_put(src, "rule.a", qdict_new());
qdict_put(src, "rule.b", qstring_from_str("allow"));
g_assert(qdict_crumple(src, &error) == NULL);
g_assert(error != NULL);
error_free(error);
error = NULL;
QDECREF(src);
src = qdict_new();
/* List indexes must not have gaps */
qdict_put(src, "rule.0", qstring_from_str("deny"));
qdict_put(src, "rule.3", qstring_from_str("allow"));
g_assert(qdict_crumple(src, &error) == NULL);
g_assert(error != NULL);
error_free(error);
error = NULL;
QDECREF(src);
src = qdict_new();
/* List indexes must be in %zu format */
qdict_put(src, "rule.0", qstring_from_str("deny"));
qdict_put(src, "rule.+1", qstring_from_str("allow"));
g_assert(qdict_crumple(src, &error) == NULL);
g_assert(error != NULL);
error_free(error);
error = NULL;
QDECREF(src);
}
static int ssh_create(const char *filename, QemuOpts *opts, Error **errp)
{
int r, ret;
int64_t total_size = 0;
QDict *uri_options = NULL;
BDRVSSHState s;
ssize_t r2;
char c[1] = { '\0' };
ssh_state_init(&s);
/* Get desired file size. */
total_size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
BDRV_SECTOR_SIZE);
DPRINTF("total_size=%" PRIi64, total_size);
uri_options = qdict_new();
r = parse_uri(filename, uri_options, errp);
if (r < 0) {
ret = r;
goto out;
}
r = connect_to_ssh(&s, uri_options,
LIBSSH2_FXF_READ|LIBSSH2_FXF_WRITE|
LIBSSH2_FXF_CREAT|LIBSSH2_FXF_TRUNC,
0644, errp);
if (r < 0) {
ret = r;
goto out;
}
if (total_size > 0) {
libssh2_sftp_seek64(s.sftp_handle, total_size-1);
r2 = libssh2_sftp_write(s.sftp_handle, c, 1);
if (r2 < 0) {
sftp_error_setg(errp, &s, "truncate failed");
ret = -EINVAL;
goto out;
}
s.attrs.filesize = total_size;
}
ret = 0;
out:
ssh_state_free(&s);
if (uri_options != NULL) {
QDECREF(uri_options);
}
return ret;
}
static void qdict_crumple_test_empty(void)
{
QDict *src, *dst;
src = qdict_new();
dst = (QDict *)qdict_crumple(src, &error_abort);
g_assert_cmpint(qdict_size(dst), ==, 0);
QDECREF(src);
QDECREF(dst);
}
static void qdict_new_test(void)
{
QDict *qdict;
qdict = qdict_new();
g_assert(qdict != NULL);
g_assert(qdict_size(qdict) == 0);
g_assert(qdict->base.refcnt == 1);
g_assert(qobject_type(QOBJECT(qdict)) == QTYPE_QDICT);
// destroy doesn't exit yet
g_free(qdict);
}
static void qdict_crumple_test_empty(void)
{
QDict *src, *dst;
src = qdict_new();
dst = qobject_to(QDict, qdict_crumple(src, &error_abort));
g_assert_cmpint(qdict_size(dst), ==, 0);
qobject_unref(src);
qobject_unref(dst);
}
/* test commands with no input and no return value */
static void test_dispatch_cmd(void)
{
QDict *req = qdict_new();
QDict *resp;
qdict_put_str(req, "execute", "user_def_cmd");
resp = qmp_dispatch(&qmp_commands, QOBJECT(req), false);
assert(resp != NULL);
assert(!qdict_haskey(resp, "error"));
qobject_unref(resp);
qobject_unref(req);
}
/* test commands with no input and no return value */
static void test_dispatch_cmd(void)
{
QDict *req = qdict_new();
QObject *resp;
qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd")));
resp = qmp_dispatch(&qmp_commands, QOBJECT(req));
assert(resp != NULL);
assert(!qdict_haskey(qobject_to_qdict(resp), "error"));
qobject_decref(resp);
QDECREF(req);
}
static int iscsi_create(const char *filename, QEMUOptionParameter *options)
{
int ret = 0;
int64_t total_size = 0;
BlockDriverState bs;
IscsiLun *iscsilun = NULL;
QDict *bs_options;
memset(&bs, 0, sizeof(BlockDriverState));
/* Read out options */
while (options && options->name) {
if (!strcmp(options->name, "size")) {
total_size = options->value.n / BDRV_SECTOR_SIZE;
}
options++;
}
bs.opaque = g_malloc0(sizeof(struct IscsiLun));
iscsilun = bs.opaque;
bs_options = qdict_new();
qdict_put(bs_options, "filename", qstring_from_str(filename));
ret = iscsi_open(&bs, bs_options, 0);
QDECREF(bs_options);
if (ret != 0) {
goto out;
}
if (iscsilun->nop_timer) {
qemu_del_timer(iscsilun->nop_timer);
qemu_free_timer(iscsilun->nop_timer);
}
if (iscsilun->type != TYPE_DISK) {
ret = -ENODEV;
goto out;
}
if (bs.total_sectors < total_size) {
ret = -ENOSPC;
goto out;
}
ret = 0;
out:
if (iscsilun->iscsi != NULL) {
iscsi_destroy_context(iscsilun->iscsi);
}
g_free(bs.opaque);
return ret;
}
static void qdict_get_int_test(void)
{
int ret;
const int value = 100;
const char *key = "int";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qint_from_int(value));
ret = qdict_get_int(tests_dict, key);
g_assert(ret == value);
QDECREF(tests_dict);
}
/* test commands that return an error due to invalid parameters */
static void test_dispatch_cmd_error(void)
{
QDict *req = qdict_new();
QObject *resp;
qdict_put_obj(req, "execute", QOBJECT(qstring_from_str("user_def_cmd2")));
resp = qmp_dispatch(QOBJECT(req));
assert(resp != NULL);
assert(qdict_haskey(qobject_to_qdict(resp), "error"));
g_print("\nresp: %s\n", qstring_get_str(qobject_to_json_pretty(resp)));
qobject_decref(resp);
QDECREF(req);
}
static void qdict_del_test(void)
{
const char *key = "key test";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qstring_from_str("foo"));
g_assert(qdict_size(tests_dict) == 1);
qdict_del(tests_dict, key);
g_assert(qdict_size(tests_dict) == 0);
g_assert(qdict_haskey(tests_dict, key) == 0);
QDECREF(tests_dict);
}
static void qdict_get_try_str_test(void)
{
const char *p;
const char *key = "key";
const char *str = "string";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qstring_from_str(str));
p = qdict_get_try_str(tests_dict, key);
g_assert(p != NULL);
g_assert(strcmp(p, str) == 0);
QDECREF(tests_dict);
}
static QObject *get_stats_qobject(VirtIOBalloon *dev)
{
QDict *dict = qdict_new();
uint64_t actual = ram_size - ((uint64_t) dev->actual <<
VIRTIO_BALLOON_PFN_SHIFT);
stat_put(dict, "actual", actual);
stat_put(dict, "mem_swapped_in", dev->stats[VIRTIO_BALLOON_S_SWAP_IN]);
stat_put(dict, "mem_swapped_out", dev->stats[VIRTIO_BALLOON_S_SWAP_OUT]);
stat_put(dict, "major_page_faults", dev->stats[VIRTIO_BALLOON_S_MAJFLT]);
stat_put(dict, "minor_page_faults", dev->stats[VIRTIO_BALLOON_S_MINFLT]);
stat_put(dict, "free_mem", dev->stats[VIRTIO_BALLOON_S_MEMFREE]);
stat_put(dict, "total_mem", dev->stats[VIRTIO_BALLOON_S_MEMTOT]);
return QOBJECT(dict);
}
static void qdict_put_exists_test(void)
{
int value;
const char *key = "exists";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qint_from_int(1));
qdict_put(tests_dict, key, qint_from_int(2));
value = qdict_get_int(tests_dict, key);
g_assert(value == 2);
g_assert(qdict_size(tests_dict) == 1);
QDECREF(tests_dict);
}
static QObject *make_qobject(void)
{
QDict *qdict = qdict_new();
QList *list = qlist_new();
qdict_put_int(qdict, "foo", 42);
qdict_put_str(qdict, "bar", "hello world");
qdict_put_null(qdict, "baz");
qlist_append_int(list, 43);
qlist_append_int(list, 44);
qlist_append_bool(list, true);
qdict_put(qdict, "bee", list);
return QOBJECT(qdict);
}
static QList *qom_list_types(const char *implements, bool abstract)
{
QDict *resp;
QList *ret;
QDict *args = qdict_new();
qdict_put_bool(args, "abstract", abstract);
if (implements) {
qdict_put_str(args, "implements", implements);
}
resp = qmp("{'execute': 'qom-list-types',"
" 'arguments': %p }", args);
g_assert(qdict_haskey(resp, "return"));
ret = qdict_get_qlist(resp, "return");
QINCREF(ret);
QDECREF(resp);
return ret;
}
static void qdict_get_test(void)
{
QInt *qi;
QObject *obj;
const int value = -42;
const char *key = "test";
QDict *tests_dict = qdict_new();
qdict_put(tests_dict, key, qint_from_int(value));
obj = qdict_get(tests_dict, key);
g_assert(obj != NULL);
qi = qobject_to_qint(obj);
g_assert(qint_get_int(qi) == value);
QDECREF(tests_dict);
}
void do_info_energy(Monitor *mon, QObject **ret_data)
{
QDict *qdict;
QObject *obj;
struct energy_counter s;
uint64_t dynamic_energy, leakage_energy;
calculate_active_energy(&s);
calculate_sleep_energy(&s);
dynamic_energy = s.data_proc_energy + s.branch_energy + s.multiply_energy + s.ldst_energy + s.misc_energy;
leakage_energy = s.sleep_energy;
qdict = qdict_new();
obj = qobject_from_jsonf(" { 'ENERGY_TYPE' : 'DYNAMIC' , "
"'value': %" PRId64 " }" , dynamic_energy);
qdict_put_obj(qdict, "1", obj);
obj = qobject_from_jsonf(" { 'ENERGY_TYPE' : 'LEAKAGE' , "
"'value': %" PRId64 " }" , leakage_energy);
qdict_put_obj(qdict, "2", obj);
*ret_data = QOBJECT(qdict);
}
QObject *qmp_dispatch(QObject *request)
{
Error *err = NULL;
QObject *ret;
QDict *rsp;
ret = do_qmp_dispatch(request, &err);
rsp = qdict_new();
if (err) {
qdict_put_obj(rsp, "error", error_get_qobject(err));
error_free(err);
} else if (ret) {
qdict_put_obj(rsp, "return", ret);
} else {
QDECREF(rsp);
return NULL;
}
return QOBJECT(rsp);
}
/* convert S390CPUDef into a static CpuModelInfo */
static void cpu_info_from_model(CpuModelInfo *info, const S390CPUModel *model,
bool delta_changes)
{
QDict *qdict = qdict_new();
S390FeatBitmap bitmap;
/* always fallback to the static base model */
info->name = g_strdup_printf("%s-base", model->def->name);
if (delta_changes) {
/* features deleted from the base feature set */
bitmap_andnot(bitmap, model->def->base_feat, model->features,
S390_FEAT_MAX);
if (!bitmap_empty(bitmap, S390_FEAT_MAX)) {
s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat);
}
/* features added to the base feature set */
bitmap_andnot(bitmap, model->features, model->def->base_feat,
S390_FEAT_MAX);
if (!bitmap_empty(bitmap, S390_FEAT_MAX)) {
s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_enabled_feat);
}
} else {
/* expand all features */
s390_feat_bitmap_to_ascii(model->features, qdict,
qdict_add_enabled_feat);
bitmap_complement(bitmap, model->features, S390_FEAT_MAX);
s390_feat_bitmap_to_ascii(bitmap, qdict, qdict_add_disabled_feat);
}
if (!qdict_size(qdict)) {
QDECREF(qdict);
} else {
info->props = QOBJECT(qdict);
info->has_props = true;
}
}
static void qdict_put_obj_test(void)
{
QInt *qi;
QDict *qdict;
QDictEntry *ent;
const int num = 42;
qdict = qdict_new();
// key "" will have tdb hash 12345
qdict_put_obj(qdict, "", QOBJECT(qint_from_int(num)));
g_assert(qdict_size(qdict) == 1);
ent = QLIST_FIRST(&qdict->table[12345 % QDICT_BUCKET_MAX]);
qi = qobject_to_qint(ent->value);
g_assert(qint_get_int(qi) == num);
// destroy doesn't exit yet
QDECREF(qi);
g_free(ent->key);
g_free(ent);
g_free(qdict);
}
static void qobject_is_equal_dict_test(void)
{
Error *local_err = NULL;
QDict *dict_0, *dict_1, *dict_cloned;
QDict *dict_different_key, *dict_different_value, *dict_different_null_key;
QDict *dict_longer, *dict_shorter, *dict_nested;
QDict *dict_crumpled;
dict_0 = qdict_new();
dict_1 = qdict_new();
dict_different_key = qdict_new();
dict_different_value = qdict_new();
dict_different_null_key = qdict_new();
dict_longer = qdict_new();
dict_shorter = qdict_new();
dict_nested = qdict_new();
qdict_put_int(dict_0, "f.o", 1);
qdict_put_int(dict_0, "bar", 2);
qdict_put_int(dict_0, "baz", 3);
qdict_put_null(dict_0, "null");
qdict_put_int(dict_1, "f.o", 1);
qdict_put_int(dict_1, "bar", 2);
qdict_put_int(dict_1, "baz", 3);
qdict_put_null(dict_1, "null");
qdict_put_int(dict_different_key, "F.o", 1);
qdict_put_int(dict_different_key, "bar", 2);
qdict_put_int(dict_different_key, "baz", 3);
qdict_put_null(dict_different_key, "null");
qdict_put_int(dict_different_value, "f.o", 42);
qdict_put_int(dict_different_value, "bar", 2);
qdict_put_int(dict_different_value, "baz", 3);
qdict_put_null(dict_different_value, "null");
qdict_put_int(dict_different_null_key, "f.o", 1);
qdict_put_int(dict_different_null_key, "bar", 2);
qdict_put_int(dict_different_null_key, "baz", 3);
qdict_put_null(dict_different_null_key, "none");
qdict_put_int(dict_longer, "f.o", 1);
qdict_put_int(dict_longer, "bar", 2);
qdict_put_int(dict_longer, "baz", 3);
qdict_put_int(dict_longer, "xyz", 4);
qdict_put_null(dict_longer, "null");
qdict_put_int(dict_shorter, "f.o", 1);
qdict_put_int(dict_shorter, "bar", 2);
qdict_put_int(dict_shorter, "baz", 3);
qdict_put(dict_nested, "f", qdict_new());
qdict_put_int(qdict_get_qdict(dict_nested, "f"), "o", 1);
qdict_put_int(dict_nested, "bar", 2);
qdict_put_int(dict_nested, "baz", 3);
qdict_put_null(dict_nested, "null");
dict_cloned = qdict_clone_shallow(dict_0);
check_equal(dict_0, dict_1, dict_cloned);
check_unequal(dict_0, dict_different_key, dict_different_value,
dict_different_null_key, dict_longer, dict_shorter,
dict_nested);
dict_crumpled = qobject_to(QDict, qdict_crumple(dict_1, &local_err));
g_assert(!local_err);
check_equal(dict_crumpled, dict_nested);
qdict_flatten(dict_nested);
check_equal(dict_0, dict_nested);
/* Containing an NaN value will make this dict compare unequal to
* itself */
qdict_put(dict_0, "NaN", qnum_from_double(NAN));
g_assert(qobject_is_equal(QOBJECT(dict_0), QOBJECT(dict_0)) == false);
free_all(dict_0, dict_1, dict_cloned, dict_different_key,
dict_different_value, dict_different_null_key, dict_longer,
dict_shorter, dict_nested, dict_crumpled);
}
int main(int argc, char **argv)
{
BlockBackend *blk;
BlockDriverState *bs;
off_t dev_offset = 0;
uint16_t nbdflags = 0;
bool disconnect = false;
const char *bindto = NULL;
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:T:D:";
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' },
{ "description", required_argument, NULL, 'D' },
{ "tls-creds", required_argument, NULL, QEMU_NBD_OPT_TLSCREDS },
{ "image-opts", no_argument, NULL, QEMU_NBD_OPT_IMAGE_OPTS },
{ "trace", required_argument, NULL, 'T' },
{ "fork", no_argument, NULL, QEMU_NBD_OPT_FORK },
{ 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 *export_description = NULL;
const char *tlscredsid = NULL;
bool imageOpts = false;
bool writethrough = true;
char *trace_file = NULL;
bool fork_process = false;
int old_stderr = -1;
unsigned socket_activation;
/* 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);
#ifdef CONFIG_POSIX
signal(SIGPIPE, SIG_IGN);
#endif
module_call_init(MODULE_INIT_TRACE);
qcrypto_init(&error_fatal);
module_call_init(MODULE_INIT_QOM);
qemu_add_opts(&qemu_object_opts);
qemu_add_opts(&qemu_trace_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 'D':
export_description = 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;
case 'T':
g_free(trace_file);
trace_file = trace_opt_parse(optarg);
break;
case QEMU_NBD_OPT_FORK:
fork_process = 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 (!trace_init_backends()) {
exit(1);
}
trace_init_file(trace_file);
qemu_set_log(LOG_TRACE);
socket_activation = check_socket_activation();
if (socket_activation == 0) {
setup_address_and_port(&bindto, &port);
} else {
/* Using socket activation - check user didn't use -p etc. */
const char *err_msg = socket_activation_validate_opts(device, sockpath,
bindto, port);
if (err_msg != NULL) {
error_report("%s", err_msg);
exit(EXIT_FAILURE);
}
/* qemu-nbd can only listen on a single socket. */
if (socket_activation > 1) {
error_report("qemu-nbd does not support socket activation with %s > 1",
"LISTEN_FDS");
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) || fork_process) {
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... */
old_stderr = dup(STDERR_FILENO);
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));
}
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));
error_report_err(local_err);
return 1;
}
} else {
/* 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);
}
}
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_str(options, "driver", 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 (dev_offset >= fd_size) {
error_report("Offset (%lld) has to be smaller than the image size "
"(%lld)",
(long long int)dev_offset, (long long int)fd_size);
exit(EXIT_FAILURE);
}
fd_size -= dev_offset;
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(bs, dev_offset, fd_size, nbdflags, nbd_export_closed,
writethrough, NULL, &local_err);
if (!exp) {
error_report_err(local_err);
exit(EXIT_FAILURE);
}
if (export_name) {
nbd_export_set_name(exp, export_name);
nbd_export_set_description(exp, export_description);
newproto = true;
} else if (export_description) {
error_report("Export description requires an export name");
exit(EXIT_FAILURE);
}
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);
}
if (fork_process) {
dup2(old_stderr, STDERR_FILENO);
close(old_stderr);
}
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);
}
}
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:";
struct option lopt[] = {
{ "help", 0, NULL, 'h' },
{ "version", 0, NULL, 'V' },
{ "bind", 1, NULL, 'b' },
{ "port", 1, NULL, 'p' },
{ "socket", 1, NULL, 'k' },
{ "offset", 1, NULL, 'o' },
{ "read-only", 0, NULL, 'r' },
{ "partition", 1, NULL, 'P' },
{ "connect", 1, NULL, 'c' },
{ "disconnect", 0, NULL, 'd' },
{ "snapshot", 0, NULL, 's' },
{ "load-snapshot", 1, NULL, 'l' },
{ "nocache", 0, NULL, 'n' },
{ "cache", 1, NULL, QEMU_NBD_OPT_CACHE },
{ "aio", 1, NULL, QEMU_NBD_OPT_AIO },
{ "discard", 1, NULL, QEMU_NBD_OPT_DISCARD },
{ "detect-zeroes", 1, NULL, QEMU_NBD_OPT_DETECT_ZEROES },
{ "shared", 1, NULL, 'e' },
{ "format", 1, NULL, 'f' },
{ "persistent", 0, NULL, 't' },
{ "verbose", 0, NULL, 'v' },
{ NULL, 0, NULL, 0 }
};
int ch;
int opt_ind = 0;
char *end;
int flags = BDRV_O_RDWR;
int partition = -1;
int ret = 0;
int fd;
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;
/* 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);
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) {
errx(EXIT_FAILURE, "-n and --cache can only be specified once");
}
seen_cache = true;
if (bdrv_parse_cache_flags(optarg, &flags) == -1) {
errx(EXIT_FAILURE, "Invalid cache mode `%s'", optarg);
}
break;
case QEMU_NBD_OPT_AIO:
if (seen_aio) {
errx(EXIT_FAILURE, "--aio can only be specified once");
}
seen_aio = true;
if (!strcmp(optarg, "native")) {
flags |= BDRV_O_NATIVE_AIO;
} else if (!strcmp(optarg, "threads")) {
/* this is the default */
} else {
errx(EXIT_FAILURE, "invalid aio mode `%s'", optarg);
}
break;
case QEMU_NBD_OPT_DISCARD:
if (seen_discard) {
errx(EXIT_FAILURE, "--discard can only be specified once");
}
seen_discard = true;
if (bdrv_parse_discard_flags(optarg, &flags) == -1) {
errx(EXIT_FAILURE, "Invalid discard mode `%s'", optarg);
}
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) {
errx(EXIT_FAILURE, "Failed to parse detect_zeroes mode: %s",
error_get_pretty(local_err));
}
if (detect_zeroes == BLOCKDEV_DETECT_ZEROES_OPTIONS_UNMAP &&
!(flags & BDRV_O_UNMAP)) {
errx(EXIT_FAILURE, "setting detect-zeroes to unmap is not allowed "
"without setting discard operation to unmap");
}
break;
case 'b':
bindto = optarg;
break;
case 'p':
port = optarg;
break;
case 'o':
dev_offset = strtoll (optarg, &end, 0);
if (*end) {
errx(EXIT_FAILURE, "Invalid offset `%s'", optarg);
}
if (dev_offset < 0) {
errx(EXIT_FAILURE, "Offset must be positive `%s'", optarg);
}
break;
case 'l':
if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) {
sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts,
optarg, false);
if (!sn_opts) {
errx(EXIT_FAILURE, "Failed in parsing snapshot param `%s'",
optarg);
}
} 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) {
errx(EXIT_FAILURE, "Invalid partition `%s'", optarg);
}
if (partition < 1 || partition > 8) {
errx(EXIT_FAILURE, "Invalid partition %d", partition);
}
break;
case 'k':
sockpath = optarg;
if (sockpath[0] != '/') {
errx(EXIT_FAILURE, "socket path must be absolute\n");
}
break;
case 'd':
disconnect = true;
break;
case 'c':
device = optarg;
break;
case 'e':
shared = strtol(optarg, &end, 0);
if (*end) {
errx(EXIT_FAILURE, "Invalid shared device number '%s'", optarg);
}
if (shared < 1) {
errx(EXIT_FAILURE, "Shared device number must be greater than 0\n");
}
break;
case 'f':
fmt = optarg;
break;
case 't':
persistent = 1;
break;
case 'v':
verbose = 1;
break;
case 'V':
version(argv[0]);
exit(0);
break;
case 'h':
usage(argv[0]);
exit(0);
break;
case '?':
errx(EXIT_FAILURE, "Try `%s --help' for more information.",
argv[0]);
}
}
if ((argc - optind) != 1) {
errx(EXIT_FAILURE, "Invalid number of argument.\n"
"Try `%s --help' for more information.",
argv[0]);
}
if (disconnect) {
fd = open(argv[optind], O_RDWR);
if (fd < 0) {
err(EXIT_FAILURE, "Cannot open %s", argv[optind]);
}
nbd_disconnect(fd);
close(fd);
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) {
err(EXIT_FAILURE, "Error setting up communication pipe");
}
/* Now daemonize, but keep a communication channel open to
* print errors and exit with the proper status code.
*/
pid = fork();
if (pid < 0) {
err(EXIT_FAILURE, "Failed to fork");
} 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) {
err(EXIT_FAILURE, "Failed to daemonize");
}
/* ... 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) {
err(EXIT_FAILURE, "Cannot read from daemon");
}
/* 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);
if (fmt) {
options = qdict_new();
qdict_put(options, "driver", qstring_from_str(fmt));
}
srcpath = argv[optind];
blk = blk_new_open("hda", srcpath, NULL, options, flags, &local_err);
if (!blk) {
errx(EXIT_FAILURE, "Failed to blk_new_open '%s': %s", argv[optind],
error_get_pretty(local_err));
}
bs = blk_bs(blk);
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) {
errno = -ret;
err(EXIT_FAILURE,
"Failed to load snapshot: %s",
error_get_pretty(local_err));
}
bs->detect_zeroes = detect_zeroes;
fd_size = blk_getlength(blk);
if (fd_size < 0) {
errx(EXIT_FAILURE, "Failed to determine the image length: %s",
strerror(-fd_size));
}
if (partition != -1) {
ret = find_partition(blk, partition, &dev_offset, &fd_size);
if (ret < 0) {
errno = -ret;
err(EXIT_FAILURE, "Could not find partition %d", partition);
}
}
exp = nbd_export_new(blk, dev_offset, fd_size, nbdflags, nbd_export_closed,
&local_err);
if (!exp) {
errx(EXIT_FAILURE, "%s", error_get_pretty(local_err));
}
fd = socket_listen(saddr, &local_err);
if (fd < 0) {
error_report_err(local_err);
return 1;
}
if (device) {
int ret;
ret = pthread_create(&client_thread, NULL, nbd_client_thread, device);
if (ret != 0) {
errx(EXIT_FAILURE, "Failed to create client thread: %s",
strerror(ret));
}
} else {
/* Shut up GCC warnings. */
memset(&client_thread, 0, sizeof(client_thread));
}
server_fd = fd;
nbd_update_server_fd_handler(fd);
/* now when the initialization is (almost) complete, chdir("/")
* to free any busy filesystems */
if (chdir("/") < 0) {
err(EXIT_FAILURE, "Could not chdir to root directory");
}
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);
}
}
static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
QemuOpts *opts,
Error **errp)
{
Error *local_err = NULL;
int64_t bytes = 0;
int64_t objsize;
int obj_order = 0;
const char *pool, *image_name, *conf, *user, *keypairs;
const char *secretid;
rados_t cluster;
rados_ioctx_t io_ctx;
QDict *options = NULL;
int ret = 0;
secretid = qemu_opt_get(opts, "password-secret");
/* Read out options */
bytes = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
BDRV_SECTOR_SIZE);
objsize = qemu_opt_get_size_del(opts, BLOCK_OPT_CLUSTER_SIZE, 0);
if (objsize) {
if ((objsize - 1) & objsize) { /* not a power of 2? */
error_setg(errp, "obj size needs to be power of 2");
ret = -EINVAL;
goto exit;
}
if (objsize < 4096) {
error_setg(errp, "obj size too small");
ret = -EINVAL;
goto exit;
}
obj_order = ctz32(objsize);
}
options = qdict_new();
qemu_rbd_parse_filename(filename, options, &local_err);
if (local_err) {
ret = -EINVAL;
error_propagate(errp, local_err);
goto exit;
}
/*
* Caution: while qdict_get_try_str() is fine, getting non-string
* types would require more care. When @options come from -blockdev
* or blockdev_add, its members are typed according to the QAPI
* schema, but when they come from -drive, they're all QString.
*/
pool = qdict_get_try_str(options, "pool");
conf = qdict_get_try_str(options, "conf");
user = qdict_get_try_str(options, "user");
image_name = qdict_get_try_str(options, "image");
keypairs = qdict_get_try_str(options, "=keyvalue-pairs");
ret = rados_create(&cluster, user);
if (ret < 0) {
error_setg_errno(errp, -ret, "error initializing");
goto exit;
}
/* try default location when conf=NULL, but ignore failure */
ret = rados_conf_read_file(cluster, conf);
if (conf && ret < 0) {
error_setg_errno(errp, -ret, "error reading conf file %s", conf);
ret = -EIO;
goto shutdown;
}
ret = qemu_rbd_set_keypairs(cluster, keypairs, errp);
if (ret < 0) {
ret = -EIO;
goto shutdown;
}
if (qemu_rbd_set_auth(cluster, secretid, errp) < 0) {
ret = -EIO;
goto shutdown;
}
ret = rados_connect(cluster);
if (ret < 0) {
error_setg_errno(errp, -ret, "error connecting");
goto shutdown;
}
ret = rados_ioctx_create(cluster, pool, &io_ctx);
if (ret < 0) {
error_setg_errno(errp, -ret, "error opening pool %s", pool);
goto shutdown;
}
ret = rbd_create(io_ctx, image_name, bytes, &obj_order);
if (ret < 0) {
error_setg_errno(errp, -ret, "error rbd create");
}
rados_ioctx_destroy(io_ctx);
shutdown:
rados_shutdown(cluster);
exit:
QDECREF(options);
return ret;
}
