/**
* virBufferEscapeSexpr:
* @buf: the buffer to append to
* @format: a printf like format string but with only one %s parameter
* @str: the string argument which needs to be escaped
*
* Do a formatted print with a single string to an sexpr buffer. The
* string is escaped to avoid generating a sexpr that xen will choke
* on. This doesn't fully escape the sexpr, just enough for our code
* to work. Auto indentation may be applied.
*/
void
virBufferEscapeSexpr(virBufferPtr buf,
const char *format,
const char *str)
{
virBufferEscape(buf, '\\', "\\'", format, str);
}
static int
virLockManagerSanlockRegisterKillscript(int sock,
const char *vmuri,
const char *uuidstr,
virDomainLockFailureAction action)
{
virBuffer buf = VIR_BUFFER_INITIALIZER;
char *path;
char *args = NULL;
int ret = -1;
int rv;
if (action > VIR_DOMAIN_LOCK_FAILURE_IGNORE) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Failure action %s is not supported by sanlock"),
virDomainLockFailureTypeToString(action));
goto cleanup;
}
virBufferEscape(&buf, '\\', "\\ ", "%s", vmuri);
virBufferAddLit(&buf, " ");
virBufferEscape(&buf, '\\', "\\ ", "%s", uuidstr);
virBufferAddLit(&buf, " ");
virBufferEscape(&buf, '\\', "\\ ", "%s",
virDomainLockFailureTypeToString(action));
if (virBufferError(&buf)) {
virBufferFreeAndReset(&buf);
virReportOOMError();
goto cleanup;
}
/* Unfortunately, sanlock_killpath() does not use const for either
* path or args even though it will just copy them into its own
* buffers.
*/
path = (char *) VIR_LOCK_MANAGER_SANLOCK_KILLPATH;
args = virBufferContentAndReset(&buf);
VIR_DEBUG("Register sanlock killpath: %s %s", path, args);
/* sanlock_killpath() would just crop the strings */
if (strlen(path) >= SANLK_HELPER_PATH_LEN) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Sanlock helper path is longer than %d: '%s'"),
SANLK_HELPER_PATH_LEN - 1, path);
goto cleanup;
}
if (strlen(args) >= SANLK_HELPER_ARGS_LEN) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Sanlock helper arguments are longer than %d:"
" '%s'"),
SANLK_HELPER_ARGS_LEN - 1, args);
goto cleanup;
}
if ((rv = sanlock_killpath(sock, 0, path, args)) < 0) {
if (rv <= -200) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to register lock failure action:"
" error %d"), rv);
} else {
virReportSystemError(-rv, "%s",
_("Failed to register lock failure"
" action"));
}
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(args);
return ret;
}
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;
}
/**
* virQEMUBuildBufferEscapeComma:
* @buf: buffer to append the escaped string
* @str: the string to escape
*
* qemu requires that any values passed on the command line which contain
* a ',' must escape it using an extra ',' as the escape character
*/
void
virQEMUBuildBufferEscapeComma(virBufferPtr buf, const char *str)
{
virBufferEscape(buf, ',', ",", "%s", str);
}
