/*
* add any missing repsFrom structures to our partitions
*/
static NTSTATUS kccsrv_add_repsFrom(struct kccsrv_service *s, TALLOC_CTX *mem_ctx,
struct repsFromToBlob *reps, uint32_t count)
{
struct kccsrv_partition *p;
/* update the repsFrom on all partitions */
for (p=s->partitions; p; p=p->next) {
struct repsFromToBlob *old_reps;
uint32_t old_count;
WERROR werr;
int i;
bool modified = false;
werr = dsdb_loadreps(s->samdb, mem_ctx, p->dn, "repsFrom", &old_reps, &old_count);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,(__location__ ": Failed to load repsFrom from %s - %s\n",
ldb_dn_get_linearized(p->dn), ldb_errstring(s->samdb)));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
/* add any new ones */
for (i=0; i<count; i++) {
if (!reps_in_list(&reps[i], old_reps, old_count)) {
old_reps = talloc_realloc(mem_ctx, old_reps, struct repsFromToBlob, old_count+1);
NT_STATUS_HAVE_NO_MEMORY(old_reps);
old_reps[old_count] = reps[i];
old_count++;
modified = true;
}
}
/* remove any stale ones */
for (i=0; i<old_count; i++) {
if (!reps_in_list(&old_reps[i], reps, count)) {
memmove(&old_reps[i], &old_reps[i+1], (old_count-(i+1))*sizeof(old_reps[0]));
old_count--;
i--;
modified = true;
}
}
if (modified) {
werr = dsdb_savereps(s->samdb, mem_ctx, p->dn, "repsFrom", old_reps, old_count);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,(__location__ ": Failed to save repsFrom to %s - %s\n",
ldb_dn_get_linearized(p->dn), ldb_errstring(s->samdb)));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
}
}
/*
get a list of our replication partners from repsFrom, returning it in *proxy_list
*/
static WERROR kdc_proxy_get_writeable_dcs(struct kdc_server *kdc, TALLOC_CTX *mem_ctx, char ***proxy_list)
{
WERROR werr;
uint32_t count, i;
struct repsFromToBlob *reps;
werr = dsdb_loadreps(kdc->samdb, mem_ctx, ldb_get_default_basedn(kdc->samdb), "repsFrom", &reps, &count);
W_ERROR_NOT_OK_RETURN(werr);
if (count == 0) {
/* we don't have any DCs to replicate with. Very
strange for a RODC */
DEBUG(1,(__location__ ": No replication sources for RODC in KDC proxy\n"));
talloc_free(reps);
return WERR_DS_DRA_NO_REPLICA;
}
(*proxy_list) = talloc_array(mem_ctx, char *, count+1);
W_ERROR_HAVE_NO_MEMORY_AND_FREE(*proxy_list, reps);
talloc_steal(*proxy_list, reps);
for (i=0; i<count; i++) {
const char *dns_name = NULL;
if (reps->version == 1) {
dns_name = reps->ctr.ctr1.other_info->dns_name;
} else if (reps->version == 2) {
dns_name = reps->ctr.ctr2.other_info->dns_name1;
}
(*proxy_list)[i] = talloc_strdup(*proxy_list, dns_name);
W_ERROR_HAVE_NO_MEMORY_AND_FREE((*proxy_list)[i], *proxy_list);
}
(*proxy_list)[i] = NULL;
talloc_free(reps);
return WERR_OK;
}
