openbmc/qemu/block.c

157 /* check if the path starts with "<protocol>:" */
239  * protocol prefixes (especially "file:") from a filename and for putting the
246         /* Stripping the explicit protocol prefix may result in a protocol
255             /* And we can thus fix the protocol detection issue by prefixing it
265             /* If no protocol prefix was detected, we can use the shortened
627  * Simple implementation of bdrv_co_create_opts for protocol drivers
715      * 'opts' contains a QemuOptsList with a combination of format and protocol
719      * in 'opts->list'.  So if the protocol has options with the same name
725      * create_opts of the protocol. So the new QemuOpts, will contain only the
726      * protocol defaults.
903 static BlockDriver *bdrv_do_find_protocol(const char *protocol)
909         if (drv1->protocol_name && !strcmp(drv1->protocol_name, protocol)) {
922     char protocol[128];
932      * override an explicit protocol specification, but moving this
949     if (len > sizeof(protocol) - 1)
950         len = sizeof(protocol) - 1;
951     memcpy(protocol, filename, len);
952     protocol[len] = '\0';
954     drv1 = bdrv_do_find_protocol(protocol);
961             !strcmp(block_driver_modules[i].protocol_name, protocol)) {
964                 drv1 = bdrv_do_find_protocol(protocol);
973         error_setg(errp, "Unknown protocol '%s'", protocol);
1972     /* Open the image, either directly or using a protocol */
2025     /* Parse json: pseudo-protocol */
2053     bool protocol = *flags & BDRV_O_PROTOCOL;
2076         protocol = drv->bdrv_file_open;
2079     if (protocol) {
2089     if (protocol && filename) {
2104     if (!drvname && protocol) {
2119     assert(drv || !protocol);
4158     /* BDRV_O_PROTOCOL must be set iff a protocol BDS is about to be created */
4160     /* file must be NULL if a protocol BDS is about to be created
4204             error_setg(errp, "Block protocol '%s' doesn't support the option "
5081              * filenames using the json:{} pseudo-protocol, they will be
6808 /* backing_file can either be relative, or absolute, or a protocol.  If it is
6870              * If either of the filename paths is actually a protocol, then
8163  *              "json:" (for use through the JSON pseudo protocol) and put here.
8265          * - the file is a protocol BDS, and