/**
* destroy a volume disk header.
*
* @param[in] dp disk partition object
* @param[in] volid volume id
* @param[in] parent parent's volume id, 0 if unknown
*
* @return operation status
* @retval 0 success
*
* @note if parent is 0, the parent volume ID will be looked up from the
* fileserver
*
* @note for non-DAFS, parent is currently ignored
*/
afs_int32
VDestroyVolumeDiskHeader(struct DiskPartition64 * dp,
VolumeId volid,
VolumeId parent)
{
afs_int32 code = 0;
char path[MAXPATHLEN];
#ifdef AFS_DEMAND_ATTACH_FS
SYNC_response res;
#endif /* AFS_DEMAND_ATTACH_FS */
(void)afs_snprintf(path, sizeof(path),
"%s/" VFORMAT,
VPartitionPath(dp), afs_printable_uint32_lu(volid));
code = unlink(path);
if (code) {
Log("VDestroyVolumeDiskHeader: Couldn't unlink disk header, error = %d\n", errno);
goto done;
}
#ifdef AFS_DEMAND_ATTACH_FS
memset(&res, 0, sizeof(res));
if (!parent) {
FSSYNC_VGQry_response_t q_res;
code = FSYNC_VGCQuery(dp->name, volid, &q_res, &res);
if (code) {
Log("VDestroyVolumeDiskHeader: FSYNC_VGCQuery(%s, %lu) failed "
"with code %ld, reason %ld\n", dp->name,
afs_printable_uint32_lu(volid), afs_printable_int32_ld(code),
afs_printable_int32_ld(res.hdr.reason));
goto done;
}
parent = q_res.rw;
}
code = FSYNC_VGCDel(dp->name, parent, volid, FSYNC_WHATEVER, &res);
if (code) {
Log("VDestroyVolumeDiskHeader: FSYNC_VGCDel(%s, %lu, %lu) failed "
"with code %ld reason %ld\n", dp->name,
afs_printable_uint32_lu(parent),
afs_printable_uint32_lu(volid),
afs_printable_int32_ld(code),
afs_printable_int32_ld(res.hdr.reason));
}
#endif /* AFS_DEMAND_ATTACH_FS */
done:
return code;
}
/**
* query VGC.
*
* @notes args:
* - CUSTOM_PARMS_OFFSET+0 is partition string
* - CUSTOM_PARMS_OFFSET+1 is volume id
*
* @return operation status
* @retval 0 success
*/
static int
VGCQuery(struct cmd_syndesc * as, void * rock)
{
afs_int32 code;
struct fssync_state state;
char * partName;
VolumeId volid;
FSSYNC_VGQry_response_t q_res;
SYNC_response res;
int i;
struct cmd_item *ti;
if (!(ti = as->parms[CUSTOM_PARMS_OFFSET+0].items)) { /* -partition */
return -1;
}
partName = ti->data;
if (!(ti = as->parms[CUSTOM_PARMS_OFFSET+1].items)) { /* -volumeid */
return -1;
}
volid = atoi(ti->data);
common_prolog(as, &state);
fprintf(stderr, "calling FSYNC_VCGQuery\n");
code = FSYNC_VGCQuery(partName, volid, &q_res, &res);
debug_response(code, &res);
if (code == SYNC_OK) {
printf("VG = {\n");
printf("\trw\t=\t%u\n", q_res.rw);
printf("\tchildren\t= (\n");
for (i = 0; i < VOL_VG_MAX_VOLS; i++) {
if (q_res.children[i]) {
printf("\t\t%u\n", q_res.children[i]);
}
}
printf("\t)\n");
}
VDisconnectFS();
return 0;
}
