This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ 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 ...
*/
-int cli_send_mailslot(int dgram_sock, BOOL unique, const char *mailslot,
- char *buf, int len,
- const char *srcname, int src_type,
- const char *dstname, int dest_type,
- struct in_addr dest_ip, struct in_addr src_ip,
- int dest_port, int src_port)
+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,
+ int dgm_id,
+ struct packet_struct *p)
{
- struct packet_struct p;
- struct dgram_packet *dgram = &p.packet.dgram;
- char *ptr, *p2;
- char tmp[4];
-
- memset((char *)&p, '\0', sizeof(p));
-
- /*
- * Next, build the DGRAM ...
- */
-
- /* DIRECT GROUP or UNIQUE datagram. */
- dgram->header.msg_type = unique ? 0x10 : 0x11;
- 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.source_ip.s_addr = src_ip.s_addr;
- dgram->header.source_port = ntohs(src_port);
- dgram->header.dgm_length = 0; /* Let build_dgram() handle this. */
- dgram->header.packet_offset = 0;
-
- make_nmb_name(&dgram->source_name,srcname,src_type);
- make_nmb_name(&dgram->dest_name,dstname,dest_type);
-
- ptr = &dgram->data[0];
-
- /* Setup the smb part. */
- ptr -= 4; /* XXX Ugliness because of handling of tcp SMB length. */
- memcpy(tmp,ptr,4);
- set_message(ptr,17,17 + len,True);
- memcpy(ptr,tmp,4);
-
- SCVAL(ptr,smb_com,SMBtrans);
- SSVAL(ptr,smb_vwv1,len);
- SSVAL(ptr,smb_vwv11,len);
- SSVAL(ptr,smb_vwv12,70 + strlen(mailslot));
- SSVAL(ptr,smb_vwv13,3);
- SSVAL(ptr,smb_vwv14,1);
- SSVAL(ptr,smb_vwv15,1);
- SSVAL(ptr,smb_vwv16,2);
- p2 = smb_buf(ptr);
- pstrcpy(p2,mailslot);
- p2 = skip_string(p2,1);
-
- memcpy(p2,buf,len);
- p2 += len;
-
- dgram->datasize = PTR_DIFF(p2,ptr+4); /* +4 for tcp length. */
-
- p.ip = dest_ip;
- p.port = dest_port;
- p.fd = dgram_sock;
- p.timestamp = time(NULL);
- p.packet_type = DGRAM_PACKET;
-
- DEBUG(4,("send_mailslot: Sending to mailslot %s from %s IP %s ", mailslot,
- nmb_namestr(&dgram->source_name), inet_ntoa(src_ip)));
- DEBUG(4,("to %s IP %s\n", nmb_namestr(&dgram->dest_name), inet_ntoa(dest_ip)));
-
- return send_packet(&p);
-
+ struct dgram_packet *dgram = &p->packet.dgram;
+ char *ptr, *p2;
+ char tmp[4];
+ char addr[INET6_ADDRSTRLEN];
+
+ ZERO_STRUCTP(p);
+
+ /*
+ * Next, build the DGRAM ...
+ */
+
+ /* DIRECT GROUP or UNIQUE datagram. */
+ dgram->header.msg_type = unique ? 0x10 : 0x11;
+ dgram->header.flags.node_type = M_NODE;
+ dgram->header.flags.first = True;
+ dgram->header.flags.more = False;
+ 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;
+
+ make_nmb_name(&dgram->source_name,srcname,src_type);
+ make_nmb_name(&dgram->dest_name,dstname,dest_type);
+
+ ptr = &dgram->data[0];
+
+ /* Setup the smb part. */
+ ptr -= 4; /* XXX Ugliness because of handling of tcp SMB length. */
+ memcpy(tmp,ptr,4);
+
+ if (smb_size + 17*2 + strlen(mailslot) + 1 + len > MAX_DGRAM_SIZE) {
+ DEBUG(0, ("cli_send_mailslot: Cannot write beyond end of packet\n"));
+ return False;
+ }
+
+ cli_set_message(ptr,17,strlen(mailslot) + 1 + len,True);
+ memcpy(ptr,tmp,4);
+
+ SCVAL(ptr,smb_com,SMBtrans);
+ SSVAL(ptr,smb_vwv1,len);
+ SSVAL(ptr,smb_vwv11,len);
+ SSVAL(ptr,smb_vwv12,70 + strlen(mailslot));
+ SSVAL(ptr,smb_vwv13,3);
+ SSVAL(ptr,smb_vwv14,1);
+ SSVAL(ptr,smb_vwv15,priority);
+ SSVAL(ptr,smb_vwv16,2);
+ p2 = smb_buf(ptr);
+ fstrcpy(p2,mailslot);
+ p2 = skip_string(ptr,MAX_DGRAM_SIZE,p2);
+ if (!p2) {
+ return False;
+ }
+
+ memcpy(p2,buf,len);
+ p2 += len;
+
+ 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);
+
+ DEBUG(4,("send_mailslot: Sending to mailslot %s from %s ",
+ mailslot, nmb_namestr(&dgram->source_name)));
+ print_sockaddr(addr, sizeof(addr), dest_ss);
+
+ DEBUGADD(4,("to %s IP %s\n", nmb_namestr(&dgram->dest_name), addr));
+
+ return true;
}
-/*
- * cli_get_response: Get a response ...
- */
-int cli_get_response(int dgram_sock, BOOL unique, const char *mailslot, char *buf, int bufsiz)
+static const char *mailslot_name(TALLOC_CTX *mem_ctx, struct in_addr dc_ip)
{
- struct packet_struct *packet;
-
- packet = receive_dgram_packet(dgram_sock, 5, mailslot);
-
- if (packet) { /* We got one, pull what we want out of the SMB data ... */
-
- struct dgram_packet *dgram = &packet->packet.dgram;
-
- /*
- * We should probably parse the SMB, but for now, we will pull what
- * from fixed, known locations ...
- */
-
- /* Copy the data to buffer, respecting sizes ... */
-
- memcpy(buf, &dgram->data[92], MIN(bufsiz, (dgram->datasize - 92)));
-
- }
- else
- return -1;
-
- return 0;
-
+ return talloc_asprintf(mem_ctx, "%s%X",
+ NBT_MAILSLOT_GETDC, dc_ip.s_addr);
}
-/*
- * cli_get_backup_list: Send a get backup list request ...
- */
-
-static char cli_backup_list[1024];
-
-int cli_get_backup_list(const char *myname, const char *send_to_name)
+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)
{
- char outbuf[15];
- char *p;
- struct in_addr sendto_ip, my_ip;
- int dgram_sock;
- struct sockaddr_in sock_out;
- socklen_t name_size;
-
- if (!resolve_name(send_to_name, &sendto_ip, 0x1d)) {
-
- DEBUG(0, ("Could not resolve name: %s<1D>\n", send_to_name));
- return False;
-
- }
-
- my_ip.s_addr = inet_addr("0.0.0.0");
-
- if (!resolve_name(myname, &my_ip, 0x00)) { /* FIXME: Call others here */
-
- DEBUG(0, ("Could not resolve name: %s<00>\n", myname));
-
- }
-
- if ((dgram_sock = open_socket_out(SOCK_DGRAM, &sendto_ip, 138, LONG_CONNECT_TIMEOUT)) < 0) {
-
- DEBUG(4, ("open_sock_out failed ..."));
- return False;
-
- }
-
- /* Make it a broadcast socket ... */
-
- set_socket_options(dgram_sock, "SO_BROADCAST");
-
- /* Make it non-blocking??? */
-
- if (fcntl(dgram_sock, F_SETFL, O_NONBLOCK) < 0) {
-
- DEBUG(0, ("Unable to set non blocking on dgram sock\n"));
-
- }
-
- /* Now, bind a local addr to it ... Try port 138 first ... */
-
- memset((char *)&sock_out, '\0', sizeof(sock_out));
- sock_out.sin_addr.s_addr = INADDR_ANY;
- sock_out.sin_port = htons(138);
- sock_out.sin_family = AF_INET;
-
- if (bind(dgram_sock, (struct sockaddr *)&sock_out, sizeof(sock_out)) < 0) {
-
- /* Try again on any port ... */
-
- sock_out.sin_port = INADDR_ANY;
-
- if (bind(dgram_sock, (struct sockaddr *)&sock_out, sizeof(sock_out)) < 0) {
-
- DEBUG(4, ("failed to bind socket to address ...\n"));
- return False;
-
- }
-
- }
-
- /* Now, figure out what socket name we were bound to. We want the port */
-
- name_size = sizeof(sock_out);
-
- getsockname(dgram_sock, (struct sockaddr *)&sock_out, &name_size);
-
- DEBUG(5, ("Socket bound to IP:%s, port: %d\n", inet_ntoa(sock_out.sin_addr), ntohs(sock_out.sin_port)));
-
- /* Now, build the request */
-
- memset(cli_backup_list, '\0', sizeof(cli_backup_list));
- memset(outbuf, '\0', sizeof(outbuf));
-
- p = outbuf;
-
- SCVAL(p, 0, ANN_GetBackupListReq);
- p++;
-
- SCVAL(p, 0, 1); /* Count pointer ... */
- p++;
-
- SIVAL(p, 0, 1); /* The sender's token ... */
- p += 4;
-
- cli_send_mailslot(dgram_sock, True, "\\MAILSLOT\\BROWSE", outbuf,
- PTR_DIFF(p, outbuf), myname, 0, send_to_name,
- 0x1d, sendto_ip, my_ip, 138, sock_out.sin_port);
-
- /* We should check the error and return if we got one */
-
- /* Now, get the response ... */
-
- cli_get_response(dgram_sock, True, "\\MAILSLOT\\BROWSE", cli_backup_list, sizeof(cli_backup_list));
-
- /* Should check the response here ... FIXME */
-
- close(dgram_sock);
-
- return True;
-
+ 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;
}
-/*
- * cli_get_backup_server: Get the backup list and retrieve a server from it
- */
-
-int cli_get_backup_server(char *my_name, char *target, char *servername, int namesize)
+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)
{
-
- /* Get the backup list first. We could pull this from the cache later */
-
- cli_get_backup_list(my_name, target); /* FIXME: Check the response */
-
- if (!cli_backup_list[0]) { /* Empty list ... try again */
-
- cli_get_backup_list(my_name, target);
-
- }
-
- strncpy(servername, cli_backup_list, MIN(16, namesize));
-
- return True;
-
+ 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