it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "librpc/gen_ndr/messaging.h"
+#include "libsmb/clidgram.h"
/*
* cli_send_mailslot, send a mailslot for client code ...
*/
-bool cli_send_mailslot(struct messaging_context *msg_ctx,
- bool unique, const char *mailslot,
+static bool cli_prep_mailslot(bool unique, const char *mailslot,
uint16 priority,
char *buf, int len,
const char *srcname, int src_type,
const char *dstname, int dest_type,
- const struct sockaddr_storage *dest_ss)
+ const struct sockaddr_storage *dest_ss,
+ int dgm_id,
+ struct packet_struct *p)
{
- struct packet_struct p;
- struct dgram_packet *dgram = &p.packet.dgram;
+ struct dgram_packet *dgram = &p->packet.dgram;
char *ptr, *p2;
char tmp[4];
- pid_t nmbd_pid;
char addr[INET6_ADDRSTRLEN];
- if ((nmbd_pid = pidfile_pid("nmbd")) == 0) {
- DEBUG(3, ("No nmbd found\n"));
- return False;
- }
-
- if (dest_ss->ss_family != AF_INET) {
- DEBUG(3, ("cli_send_mailslot: can't send to IPv6 address.\n"));
- return false;
- }
-
- memset((char *)&p, '\0', sizeof(p));
+ ZERO_STRUCTP(p);
/*
* Next, build the DGRAM ...
dgram->header.flags.node_type = M_NODE;
dgram->header.flags.first = True;
dgram->header.flags.more = False;
- dgram->header.dgm_id = ((unsigned)time(NULL)%(unsigned)0x7FFF) +
- ((unsigned)sys_getpid()%(unsigned)100);
+ dgram->header.dgm_id = dgm_id;
/* source ip is filled by nmbd */
dgram->header.dgm_length = 0; /* Let build_dgram() handle this. */
dgram->header.packet_offset = 0;
dgram->datasize = PTR_DIFF(p2,ptr+4); /* +4 for tcp length. */
- p.packet_type = DGRAM_PACKET;
- p.ip = ((const struct sockaddr_in *)dest_ss)->sin_addr;
- p.timestamp = time(NULL);
+ p->packet_type = DGRAM_PACKET;
+ p->ip = ((const struct sockaddr_in *)dest_ss)->sin_addr;
+ p->timestamp = time(NULL);
DEBUG(4,("send_mailslot: Sending to mailslot %s from %s ",
mailslot, nmb_namestr(&dgram->source_name)));
DEBUGADD(4,("to %s IP %s\n", nmb_namestr(&dgram->dest_name), addr));
+ return true;
+}
+
+static const char *mailslot_name(TALLOC_CTX *mem_ctx, struct in_addr dc_ip)
+{
+ return talloc_asprintf(mem_ctx, "%s%X",
+ NBT_MAILSLOT_GETDC, dc_ip.s_addr);
+}
+
+static bool prep_getdc_request(const struct sockaddr_storage *dc_ss,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version,
+ int dgm_id,
+ struct packet_struct *p)
+{
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct in_addr dc_ip;
+ const char *my_acct_name;
+ const char *my_mailslot;
+ struct nbt_netlogon_packet packet;
+ struct NETLOGON_SAM_LOGON_REQUEST *s;
+ enum ndr_err_code ndr_err;
+ DATA_BLOB blob = data_blob_null;
+ struct dom_sid my_sid;
+ bool ret = false;
+
+ if (dc_ss->ss_family != AF_INET) {
+ goto fail;
+ }
+
+ ZERO_STRUCT(packet);
+ ZERO_STRUCT(my_sid);
+
+ if (sid != NULL) {
+ my_sid = *sid;
+ }
+
+ dc_ip = ((struct sockaddr_in *)dc_ss)->sin_addr;
+
+ my_mailslot = mailslot_name(talloc_tos(), dc_ip);
+ if (my_mailslot == NULL) {
+ goto fail;
+ }
+
+ my_acct_name = talloc_asprintf(talloc_tos(), "%s$", global_myname());
+ if (my_acct_name == NULL) {
+ goto fail;
+ }
+
+ packet.command = LOGON_SAM_LOGON_REQUEST;
+ s = &packet.req.logon;
+
+ s->request_count = 0;
+ s->computer_name = global_myname();
+ s->user_name = my_acct_name;
+ s->mailslot_name = my_mailslot;
+ s->acct_control = ACB_WSTRUST;
+ s->sid = my_sid;
+ s->nt_version = nt_version;
+ s->lmnt_token = 0xffff;
+ s->lm20_token = 0xffff;
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(nbt_netlogon_packet, &packet);
+ }
+
+ ndr_err = ndr_push_struct_blob(&blob, talloc_tos(), &packet,
+ (ndr_push_flags_fn_t)ndr_push_nbt_netlogon_packet);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ goto fail;
+ }
+
+ ret = cli_prep_mailslot(false, NBT_MAILSLOT_NTLOGON, 0,
+ (char *)blob.data, blob.length,
+ global_myname(), 0, domain_name, 0x1c,
+ dc_ss, dgm_id, p);
+fail:
+ TALLOC_FREE(frame);
+ return ret;
+}
+
+bool send_getdc_request(struct messaging_context *msg_ctx,
+ const struct sockaddr_storage *dc_ss,
+ const char *domain_name,
+ const struct dom_sid *sid,
+ uint32_t nt_version,
+ int dgm_id)
+{
+ struct packet_struct p;
+ pid_t nmbd_pid;
+
+ if ((nmbd_pid = pidfile_pid("nmbd")) == 0) {
+ DEBUG(3, ("No nmbd found\n"));
+ return False;
+ }
+
+ if (!prep_getdc_request(dc_ss, domain_name, sid, nt_version,
+ dgm_id, &p)) {
+ return false;
+ }
+
return NT_STATUS_IS_OK(messaging_send_buf(msg_ctx,
pid_to_procid(nmbd_pid),
MSG_SEND_PACKET,
(uint8 *)&p, sizeof(p)));
}
+
+bool receive_getdc_response(TALLOC_CTX *mem_ctx,
+ const struct sockaddr_storage *dc_ss,
+ const char *domain_name,
+ int dgm_id,
+ uint32_t *nt_version,
+ const char **dc_name,
+ struct netlogon_samlogon_response **samlogon_response)
+{
+ struct packet_struct *packet;
+ const char *my_mailslot = NULL;
+ struct in_addr dc_ip;
+ DATA_BLOB blob;
+ struct netlogon_samlogon_response *r;
+ union dgram_message_body p;
+ enum ndr_err_code ndr_err;
+ NTSTATUS status;
+
+ const char *returned_dc = NULL;
+ const char *returned_domain = NULL;
+
+ if (dc_ss->ss_family != AF_INET) {
+ return false;
+ }
+
+ dc_ip = ((struct sockaddr_in *)dc_ss)->sin_addr;
+
+ my_mailslot = mailslot_name(mem_ctx, dc_ip);
+ if (!my_mailslot) {
+ return false;
+ }
+
+ packet = receive_unexpected(DGRAM_PACKET, dgm_id, my_mailslot);
+
+ if (packet == NULL) {
+ DEBUG(5, ("Did not receive packet for %s\n", my_mailslot));
+ return False;
+ }
+
+ DEBUG(5, ("Received packet for %s\n", my_mailslot));
+
+ blob = data_blob_const(packet->packet.dgram.data,
+ packet->packet.dgram.datasize);
+
+ if (blob.length < 4) {
+ DEBUG(0,("invalid length: %d\n", (int)blob.length));
+ return false;
+ }
+
+ if (RIVAL(blob.data,0) != DGRAM_SMB) {
+ DEBUG(0,("invalid packet\n"));
+ return false;
+ }
+
+ blob.data += 4;
+ blob.length -= 4;
+
+ ndr_err = ndr_pull_union_blob_all(&blob, mem_ctx, &p, DGRAM_SMB,
+ (ndr_pull_flags_fn_t)ndr_pull_dgram_smb_packet);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ DEBUG(0,("failed to parse packet\n"));
+ return false;
+ }
+
+ if (p.smb.smb_command != SMB_TRANSACTION) {
+ DEBUG(0,("invalid smb_command: %d\n", p.smb.smb_command));
+ return false;
+ }
+
+ if (DEBUGLEVEL >= 10) {
+ NDR_PRINT_DEBUG(dgram_smb_packet, &p);
+ }
+
+ blob = p.smb.body.trans.data;
+
+ r = TALLOC_ZERO_P(mem_ctx, struct netlogon_samlogon_response);
+ if (!r) {
+ return false;
+ }
+
+ status = pull_netlogon_samlogon_response(&blob, mem_ctx, r);
+ if (!NT_STATUS_IS_OK(status)) {
+ TALLOC_FREE(r);
+ return false;
+ }
+
+ map_netlogon_samlogon_response(r);
+
+ /* do we still need this ? */
+ *nt_version = r->ntver;
+
+ returned_domain = r->data.nt5_ex.domain_name;
+ returned_dc = r->data.nt5_ex.pdc_name;
+
+ if (!strequal(returned_domain, domain_name)) {
+ DEBUG(3, ("GetDC: Expected domain %s, got %s\n",
+ domain_name, returned_domain));
+ TALLOC_FREE(r);
+ return false;
+ }
+
+ *dc_name = talloc_strdup(mem_ctx, returned_dc);
+ if (!*dc_name) {
+ TALLOC_FREE(r);
+ return false;
+ }
+
+ if (**dc_name == '\\') *dc_name += 1;
+ if (**dc_name == '\\') *dc_name += 1;
+
+ if (samlogon_response) {
+ *samlogon_response = r;
+ } else {
+ TALLOC_FREE(r);
+ }
+
+ DEBUG(10, ("GetDC gave name %s for domain %s\n",
+ *dc_name, returned_domain));
+
+ return True;
+}
git.samba.org / metze / samba / wip.git / blobdiff