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https://gitlab.com/libvirt/libvirt.git
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qemu: Split out NBD command generation
This commit is contained in:
parent
eaa1539b2f
commit
d94fd0c9c2
@ -3680,7 +3680,7 @@ qemuNetworkDriveGetPort(int protocol,
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return -1;
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}
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#define QEMU_DEFAULT_NBD_PORT "10809"
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char *
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qemuBuildNetworkDriveURI(int protocol,
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@ -3691,9 +3691,67 @@ qemuBuildNetworkDriveURI(int protocol,
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const char *secret)
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{
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char *ret = NULL;
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virBuffer buf = VIR_BUFFER_INITIALIZER;
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virURIPtr uri = NULL;
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switch ((enum virDomainDiskProtocol) protocol) {
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case VIR_DOMAIN_DISK_PROTOCOL_NBD:
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if (nhosts != 1) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("protocol '%s' accepts only one host"),
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virDomainDiskProtocolTypeToString(protocol));
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goto cleanup;
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}
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if (!((hosts->name && strchr(hosts->name, ':')) ||
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(hosts->transport == VIR_DOMAIN_DISK_PROTO_TRANS_TCP &&
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!hosts->name) ||
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(hosts->transport == VIR_DOMAIN_DISK_PROTO_TRANS_UNIX &&
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hosts->socket &&
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hosts->socket[0] != '/'))) {
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virBufferAddLit(&buf, "nbd:");
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switch (hosts->transport) {
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case VIR_DOMAIN_DISK_PROTO_TRANS_TCP:
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virBufferStrcat(&buf, hosts->name, NULL);
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virBufferAsprintf(&buf, ":%s",
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hosts->port ? hosts->port :
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QEMU_DEFAULT_NBD_PORT);
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break;
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case VIR_DOMAIN_DISK_PROTO_TRANS_UNIX:
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if (!hosts->socket) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("socket attribute required for "
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"unix transport"));
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goto cleanup;
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}
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virBufferAsprintf(&buf, "unix:%s", hosts->socket);
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break;
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default:
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("nbd does not support transport '%s'"),
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virDomainDiskProtocolTransportTypeToString(hosts->transport));
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goto cleanup;
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}
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if (src)
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virBufferAsprintf(&buf, ":exportname=%s", src);
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if (virBufferError(&buf) < 0) {
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virReportOOMError();
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goto cleanup;
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}
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ret = virBufferContentAndReset(&buf);
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goto cleanup;
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}
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/* fallthrough */
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/* NBD code uses same formatting scheme as others in some cases */
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case VIR_DOMAIN_DISK_PROTOCOL_HTTP:
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case VIR_DOMAIN_DISK_PROTOCOL_HTTPS:
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case VIR_DOMAIN_DISK_PROTOCOL_FTP:
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@ -3701,7 +3759,6 @@ qemuBuildNetworkDriveURI(int protocol,
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case VIR_DOMAIN_DISK_PROTOCOL_TFTP:
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case VIR_DOMAIN_DISK_PROTOCOL_ISCSI:
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case VIR_DOMAIN_DISK_PROTOCOL_GLUSTER:
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case VIR_DOMAIN_DISK_PROTOCOL_NBD:
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if (nhosts != 1) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("protocol '%s' accepts only one host"),
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@ -3786,6 +3843,7 @@ qemuBuildNetworkDriveURI(int protocol,
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}
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cleanup:
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virBufferFreeAndReset(&buf);
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virURIFree(uri);
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return ret;
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@ -3839,56 +3897,6 @@ cleanup:
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}
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#define QEMU_DEFAULT_NBD_PORT "10809"
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static int
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qemuBuildNBDString(virConnectPtr conn, virDomainDiskDefPtr disk, virBufferPtr opt)
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{
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const char *transp;
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if (disk->nhosts != 1) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("nbd accepts only one host"));
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return -1;
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}
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if ((disk->hosts->name && strchr(disk->hosts->name, ':')) ||
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(disk->hosts->transport == VIR_DOMAIN_DISK_PROTO_TRANS_TCP && !disk->hosts->name) ||
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(disk->hosts->transport == VIR_DOMAIN_DISK_PROTO_TRANS_UNIX && disk->hosts->socket && disk->hosts->socket[0] != '/'))
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return qemuBuildDriveURIString(conn, disk, opt);
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virBufferAddLit(opt, "file=nbd:");
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switch (disk->hosts->transport) {
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case VIR_DOMAIN_DISK_PROTO_TRANS_TCP:
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if (disk->hosts->name)
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virBufferEscape(opt, ',', ",", "%s", disk->hosts->name);
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virBufferEscape(opt, ',', ",", ":%s",
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disk->hosts->port ? disk->hosts->port :
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QEMU_DEFAULT_NBD_PORT);
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break;
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case VIR_DOMAIN_DISK_PROTO_TRANS_UNIX:
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if (!disk->hosts->socket) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("socket attribute required for unix transport"));
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return -1;
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}
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virBufferEscape(opt, ',', ",", "unix:%s", disk->hosts->socket);
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break;
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default:
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transp = virDomainDiskProtocolTransportTypeToString(disk->hosts->transport);
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("nbd does not support transport '%s'"), transp);
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break;
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}
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if (disk->src)
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virBufferEscape(opt, ',', ",", ":exportname=%s", disk->src);
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virBufferAddChar(opt, ',');
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return 0;
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}
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char *
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@ -4013,10 +4021,6 @@ qemuBuildDriveStr(virConnectPtr conn ATTRIBUTE_UNUSED,
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virBufferEscape(&opt, ',', ",", "file=fat:%s,", disk->src);
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} else if (actualType == VIR_DOMAIN_DISK_TYPE_NETWORK) {
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switch (disk->protocol) {
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case VIR_DOMAIN_DISK_PROTOCOL_NBD:
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if (qemuBuildNBDString(conn, disk, &opt) < 0)
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goto error;
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break;
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case VIR_DOMAIN_DISK_PROTOCOL_RBD:
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virBufferAddLit(&opt, "file=");
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if (qemuBuildRBDString(conn, disk, &opt) < 0)
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@ -4024,6 +4028,7 @@ qemuBuildDriveStr(virConnectPtr conn ATTRIBUTE_UNUSED,
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virBufferAddChar(&opt, ',');
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break;
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case VIR_DOMAIN_DISK_PROTOCOL_NBD:
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case VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG:
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case VIR_DOMAIN_DISK_PROTOCOL_TFTP:
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case VIR_DOMAIN_DISK_PROTOCOL_FTPS:
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