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s3-dsgetdcname: add dsgetonedcname()

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The idea is to run the same DC validation steps as for dsgetdcname()
just omit the query list of DCs via DNS/netbios step but instead
validate a given DC right away.

Guenther

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
This commit is contained in:
Günther Deschner
2021-02-16 16:11:14 +01:00
parent de32962039
commit 7a9972943a
2 changed files with 59 additions and 0 deletions
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53
source3/libsmb/dsgetdcname.c
View File

@ -1212,3 +1212,56 @@ NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
return status;
}
NTSTATUS dsgetonedcname(TALLOC_CTX *mem_ctx,
struct messaging_context *msg_ctx,
const char *domain_name,
const char *dcname,
uint32_t flags,
struct netr_DsRGetDCNameInfo **info)
{
NTSTATUS status;
struct sockaddr_storage *addrs;
unsigned int num_addrs, i;
const char *hostname = strip_hostname(dcname);
status = resolve_name_list(mem_ctx, hostname, 0x20,
&addrs, &num_addrs);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
for (i = 0; i < num_addrs; i++) {
bool ok;
struct ip_service_name dclist;
dclist.hostname = hostname;
ok = sockaddr_storage_to_samba_sockaddr(&dclist.sa, &addrs[i]);
if (!ok) {
TALLOC_FREE(addrs);
return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
}
status = process_dc_dns(mem_ctx, domain_name, flags,
&dclist, 1, info);
if (NT_STATUS_IS_OK(status)) {
TALLOC_FREE(addrs);
return NT_STATUS_OK;
}
if (lp_disable_netbios()) {
continue;
}
status = process_dc_netbios(mem_ctx, msg_ctx, domain_name, flags,
&dclist, 1, info);
if (NT_STATUS_IS_OK(status)) {
TALLOC_FREE(addrs);
return NT_STATUS_OK;
}
}
TALLOC_FREE(addrs);
return NT_STATUS_DOMAIN_CONTROLLER_NOT_FOUND;
}

6
source3/libsmb/dsgetdcname.h
View File

@ -34,4 +34,10 @@ NTSTATUS dsgetdcname(TALLOC_CTX *mem_ctx,
uint32_t flags,
struct netr_DsRGetDCNameInfo **info);
NTSTATUS dsgetonedcname(TALLOC_CTX *mem_ctx,
struct messaging_context *msg_ctx,
const char *domain_name,
const char *dcname,
uint32_t flags,
struct netr_DsRGetDCNameInfo **info);
#endif