virStorageFileBackendPtr
virStorageFileBackendForTypeInternal(int type,
int protocol,
bool report)
{
size_t i;
for (i = 0; i < virStorageFileBackendsCount; i++) {
if (virStorageFileBackends[i]->type == type) {
if (type == VIR_STORAGE_TYPE_NETWORK &&
virStorageFileBackends[i]->protocol != protocol)
continue;
return virStorageFileBackends[i];
}
}
if (!report)
return NULL;
if (type == VIR_STORAGE_TYPE_NETWORK) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing storage backend for network files "
"using %s protocol"),
virStorageNetProtocolTypeToString(protocol));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing storage backend for '%s' storage"),
virStorageTypeToString(type));
}
return NULL;
}
int
virStorageFileBackendRegister(virStorageFileBackendPtr backend)
{
VIR_DEBUG("Registering storage file backend '%s' protocol '%s'",
virStorageTypeToString(backend->type),
virStorageNetProtocolTypeToString(backend->protocol));
if (virStorageFileBackendsCount >= VIR_STORAGE_BACKENDS_MAX) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Too many drivers, cannot register storage file "
"backend '%s'"),
virStorageTypeToString(backend->type));
return -1;
}
virStorageFileBackends[virStorageFileBackendsCount] = backend;
virStorageFileBackendsCount++;
return 0;
}
int
virStorageFileBackendForType(int type,
int protocol,
bool required,
virStorageFileBackendPtr *backend)
{
size_t i;
*backend = NULL;
if (virStorageFileBackendInitialize() < 0)
return -1;
for (i = 0; i < virStorageFileBackendsCount; i++) {
if (virStorageFileBackends[i]->type == type) {
if (type == VIR_STORAGE_TYPE_NETWORK &&
virStorageFileBackends[i]->protocol != protocol)
continue;
*backend = virStorageFileBackends[i];
return 0;
}
}
if (!required)
return 0;
if (type == VIR_STORAGE_TYPE_NETWORK) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing storage backend for network files "
"using %s protocol"),
virStorageNetProtocolTypeToString(protocol));
} else {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing storage backend for '%s' storage"),
virStorageTypeToString(type));
}
return -1;
}
static char *
xenFormatXLDiskSrcNet(virStorageSourcePtr src)
{
char *ret = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
switch ((virStorageNetProtocol) src->protocol) {
case VIR_STORAGE_NET_PROTOCOL_NBD:
case VIR_STORAGE_NET_PROTOCOL_HTTP:
case VIR_STORAGE_NET_PROTOCOL_HTTPS:
case VIR_STORAGE_NET_PROTOCOL_FTP:
case VIR_STORAGE_NET_PROTOCOL_FTPS:
case VIR_STORAGE_NET_PROTOCOL_TFTP:
case VIR_STORAGE_NET_PROTOCOL_ISCSI:
case VIR_STORAGE_NET_PROTOCOL_GLUSTER:
case VIR_STORAGE_NET_PROTOCOL_SHEEPDOG:
case VIR_STORAGE_NET_PROTOCOL_LAST:
case VIR_STORAGE_NET_PROTOCOL_NONE:
virReportError(VIR_ERR_NO_SUPPORT,
_("Unsupported network block protocol '%s'"),
virStorageNetProtocolTypeToString(src->protocol));
goto cleanup;
case VIR_STORAGE_NET_PROTOCOL_RBD:
if (strchr(src->path, ':')) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("':' not allowed in RBD source volume name '%s'"),
src->path);
goto cleanup;
}
virBufferStrcat(&buf, "rbd:", src->path, NULL);
virBufferAddLit(&buf, ":auth_supported=none");
if (src->nhosts > 0) {
virBufferAddLit(&buf, ":mon_host=");
for (i = 0; i < src->nhosts; i++) {
if (i)
virBufferAddLit(&buf, "\\\\;");
/* assume host containing : is ipv6 */
if (strchr(src->hosts[i].name, ':'))
virBufferEscape(&buf, '\\', ":", "[%s]",
src->hosts[i].name);
else
virBufferAsprintf(&buf, "%s", src->hosts[i].name);
if (src->hosts[i].port)
virBufferAsprintf(&buf, "\\\\:%s", src->hosts[i].port);
}
}
if (virBufferCheckError(&buf) < 0)
goto cleanup;
ret = virBufferContentAndReset(&buf);
break;
}
cleanup:
virBufferFreeAndReset(&buf);
return ret;
}
static int
testStorageChain(const void *args)
{
const struct testChainData *data = args;
int ret = -1;
virStorageSourcePtr meta;
virStorageSourcePtr elt;
size_t i = 0;
char *broken = NULL;
meta = testStorageFileGetMetadata(data->start, data->format, -1, -1,
(data->flags & ALLOW_PROBE) != 0);
if (!meta) {
if (data->flags & EXP_FAIL) {
virResetLastError();
ret = 0;
}
goto cleanup;
} else if (data->flags & EXP_FAIL) {
fprintf(stderr, "call should have failed\n");
goto cleanup;
}
if (data->flags & EXP_WARN) {
if (!virGetLastError()) {
fprintf(stderr, "call should have warned\n");
goto cleanup;
}
virResetLastError();
if (virStorageFileChainGetBroken(meta, &broken) || !broken) {
fprintf(stderr, "call should identify broken part of chain\n");
goto cleanup;
}
} else {
if (virGetLastError()) {
fprintf(stderr, "call should not have warned\n");
goto cleanup;
}
if (virStorageFileChainGetBroken(meta, &broken) || broken) {
fprintf(stderr, "chain should not be identified as broken\n");
goto cleanup;
}
}
elt = meta;
while (elt) {
char *expect = NULL;
char *actual = NULL;
if (i == data->nfiles) {
fprintf(stderr, "probed chain was too long\n");
goto cleanup;
}
if (virAsprintf(&expect,
testStorageChainFormat, i,
NULLSTR(data->files[i]->path),
NULLSTR(data->files[i]->expBackingStoreRaw),
data->files[i]->expCapacity,
data->files[i]->expEncrypted,
NULLSTR(data->files[i]->pathRel),
data->files[i]->type,
data->files[i]->format,
virStorageNetProtocolTypeToString(data->files[i]->protocol),
NULLSTR(data->files[i]->hostname),
NULLSTR(data->files[i]->secret)) < 0 ||
virAsprintf(&actual,
testStorageChainFormat, i,
NULLSTR(elt->path),
NULLSTR(elt->backingStoreRaw),
elt->capacity,
!!elt->encryption,
NULLSTR(elt->relPath),
elt->type,
elt->format,
virStorageNetProtocolTypeToString(elt->protocol),
NULLSTR(elt->nhosts ? elt->hosts[0].name : NULL),
NULLSTR(elt->auth ? elt->auth->username : NULL)) < 0) {
VIR_FREE(expect);
VIR_FREE(actual);
goto cleanup;
}
if (STRNEQ(expect, actual)) {
virtTestDifference(stderr, expect, actual);
VIR_FREE(expect);
VIR_FREE(actual);
goto cleanup;
}
VIR_FREE(expect);
VIR_FREE(actual);
elt = elt->backingStore;
i++;
}
if (i != data->nfiles) {
fprintf(stderr, "probed chain was too short\n");
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(broken);
virStorageSourceFree(meta);
return ret;
}