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-rw-r--r--source3/libsmb/clidgram.c195
-rw-r--r--source3/libsmb/clidgram.h20
2 files changed, 215 insertions, 0 deletions
diff --git a/source3/libsmb/clidgram.c b/source3/libsmb/clidgram.c
index 8a95cba605..57fbd71da5 100644
--- a/source3/libsmb/clidgram.c
+++ b/source3/libsmb/clidgram.c
@@ -353,3 +353,198 @@ bool receive_getdc_response(TALLOC_CTX *mem_ctx,
free_packet(packet);
return ret;
}
+
+struct nbt_getdc_state {
+ struct tevent_context *ev;
+ struct messaging_context *msg_ctx;
+ struct nb_packet_reader *reader;
+ const char *my_mailslot;
+ pid_t nmbd_pid;
+
+ const struct sockaddr_storage *dc_addr;
+ const char *domain_name;
+ const struct dom_sid *sid;
+ uint32_t nt_version;
+ const char *dc_name;
+ struct netlogon_samlogon_response *samlogon_response;
+
+ struct packet_struct p;
+};
+
+static void nbt_getdc_got_reader(struct tevent_req *subreq);
+static void nbt_getdc_got_response(struct tevent_req *subreq);
+
+struct tevent_req *nbt_getdc_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct messaging_context *msg_ctx,
+ const struct sockaddr_storage *dc_addr,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version)
+{
+ struct tevent_req *req, *subreq;
+ struct nbt_getdc_state *state;
+ uint16_t dgm_id;
+
+ req = tevent_req_create(mem_ctx, &state, struct nbt_getdc_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->ev = ev;
+ state->msg_ctx = msg_ctx;
+ state->dc_addr = dc_addr;
+ state->domain_name = domain_name;
+ state->sid = sid;
+ state->nt_version = nt_version;
+
+ if (dc_addr->ss_family != AF_INET) {
+ tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
+ return tevent_req_post(req, ev);
+ }
+ state->my_mailslot = mailslot_name(
+ state, ((struct sockaddr_in *)dc_addr)->sin_addr);
+ if (tevent_req_nomem(state->my_mailslot, req)) {
+ return tevent_req_post(req, ev);
+ }
+ state->nmbd_pid = pidfile_pid("nmbd");
+ if (state->nmbd_pid == 0) {
+ DEBUG(3, ("No nmbd found\n"));
+ tevent_req_nterror(req, NT_STATUS_NOT_SUPPORTED);
+ return tevent_req_post(req, ev);
+ }
+
+ generate_random_buffer((uint8_t *)(void *)&dgm_id, sizeof(dgm_id));
+
+ if (!prep_getdc_request(dc_addr, domain_name, sid, nt_version,
+ state->my_mailslot, dgm_id & 0x7fff,
+ &state->p)) {
+ DEBUG(3, ("prep_getdc_request failed\n"));
+ tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
+ return tevent_req_post(req, ev);
+ }
+
+ subreq = nb_packet_reader_send(state, ev, DGRAM_PACKET, -1,
+ state->my_mailslot);
+ if (tevent_req_nomem(subreq, req)) {
+ return tevent_req_post(req, ev);
+ }
+ tevent_req_set_callback(subreq, nbt_getdc_got_reader, req);
+ return req;
+}
+
+static void nbt_getdc_got_reader(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct nbt_getdc_state *state = tevent_req_data(
+ req, struct nbt_getdc_state);
+ NTSTATUS status;
+
+ status = nb_packet_reader_recv(subreq, state, &state->reader);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ DEBUG(10, ("nb_packet_reader_recv returned %s\n",
+ nt_errstr(status)));
+ return;
+ }
+
+ status = messaging_send_buf(
+ state->msg_ctx, pid_to_procid(state->nmbd_pid),
+ MSG_SEND_PACKET, (uint8_t *)&state->p, sizeof(state->p));
+
+ if (tevent_req_nterror(req, status)) {
+ DEBUG(10, ("messaging_send_buf returned %s\n",
+ nt_errstr(status)));
+ return;
+ }
+ subreq = nb_packet_read_send(state, state->ev, state->reader);
+ if (tevent_req_nomem(subreq, req)) {
+ return;
+ }
+ tevent_req_set_callback(subreq, nbt_getdc_got_response, req);
+}
+
+static void nbt_getdc_got_response(struct tevent_req *subreq)
+{
+ struct tevent_req *req = tevent_req_callback_data(
+ subreq, struct tevent_req);
+ struct nbt_getdc_state *state = tevent_req_data(
+ req, struct nbt_getdc_state);
+ struct packet_struct *p;
+ NTSTATUS status;
+ bool ret;
+
+ status = nb_packet_read_recv(subreq, &p);
+ TALLOC_FREE(subreq);
+ if (tevent_req_nterror(req, status)) {
+ return;
+ }
+
+ ret = parse_getdc_response(p, state, state->domain_name,
+ &state->nt_version, &state->dc_name,
+ &state->samlogon_response);
+ free_packet(p);
+ if (!ret) {
+ tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+ return;
+ }
+ tevent_req_done(req);
+}
+
+NTSTATUS nbt_getdc_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ uint32_t *nt_version, const char **dc_name,
+ struct netlogon_samlogon_response **samlogon_response)
+{
+ struct nbt_getdc_state *state = tevent_req_data(
+ req, struct nbt_getdc_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ return status;
+ }
+ if (nt_version != NULL) {
+ *nt_version = state->nt_version;
+ }
+ if (dc_name != NULL) {
+ *dc_name = talloc_move(mem_ctx, &state->dc_name);
+ }
+ if (samlogon_response != NULL) {
+ *samlogon_response = talloc_move(
+ mem_ctx, &state->samlogon_response);
+ }
+ return NT_STATUS_OK;
+}
+
+NTSTATUS nbt_getdc(struct messaging_context *msg_ctx,
+ const struct sockaddr_storage *dc_addr,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *pnt_version,
+ const char **dc_name,
+ struct netlogon_samlogon_response **samlogon_response)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct tevent_context *ev;
+ struct tevent_req *req;
+ NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+ ev = tevent_context_init(frame);
+ if (ev == NULL) {
+ goto fail;
+ }
+ req = nbt_getdc_send(ev, ev, msg_ctx, dc_addr, domain_name,
+ sid, nt_version);
+ if (req == NULL) {
+ goto fail;
+ }
+ if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+ goto fail;
+ }
+ status = nbt_getdc_recv(req, mem_ctx, pnt_version, dc_name,
+ samlogon_response);
+ fail:
+ TALLOC_FREE(frame);
+ return status;
+}
diff --git a/source3/libsmb/clidgram.h b/source3/libsmb/clidgram.h
index af924f40ce..3ddf9d6b1a 100644
--- a/source3/libsmb/clidgram.h
+++ b/source3/libsmb/clidgram.h
@@ -15,3 +15,23 @@ bool receive_getdc_response(TALLOC_CTX *mem_ctx,
uint32_t *nt_version,
const char **dc_name,
struct netlogon_samlogon_response **reply);
+
+struct tevent_req *nbt_getdc_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct messaging_context *msg_ctx,
+ const struct sockaddr_storage *dc_addr,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version);
+NTSTATUS nbt_getdc_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
+ uint32_t *nt_version, const char **dc_name,
+ struct netlogon_samlogon_response **samlogon_response);
+NTSTATUS nbt_getdc(struct messaging_context *msg_ctx,
+ const struct sockaddr_storage *dc_addr,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version,
+ TALLOC_CTX *mem_ctx,
+ uint32_t *pnt_version,
+ const char **dc_name,
+ struct netlogon_samlogon_response **samlogon_response);
generated by cgit (git 2.34.1) at 2024-10-30 17:56:45 +0000