From c73c3e1daa9449eb6abab182b2d41bb945ada8c9 Mon Sep 17 00:00:00 2001 From: Gerald Carter Date: Wed, 4 Dec 2002 19:00:29 +0000 Subject: [merge] remove assert(count ==1) for multi-homed PDCs; CR 1277 (This used to be commit 157b5ab198670c6999f22d6b49072fdebc84be0d) --- source3/libsmb/namequery.c | 204 +++++---------------------------------------- 1 file changed, 22 insertions(+), 182 deletions(-) (limited to 'source3/libsmb') diff --git a/source3/libsmb/namequery.c b/source3/libsmb/namequery.c index 7aaa7d5908..f446453b9a 100644 --- a/source3/libsmb/namequery.c +++ b/source3/libsmb/namequery.c @@ -1001,7 +1001,6 @@ BOOL find_master_ip(const char *group, struct in_addr *master_ip) BOOL lookup_dc_name(const char *srcname, const char *domain, struct in_addr *dc_ip, char *ret_name) { -#if !defined(I_HATE_WINDOWS_REPLY_CODE) fstring dc_name; BOOL ret; @@ -1025,184 +1024,6 @@ BOOL lookup_dc_name(const char *srcname, const char *domain, } return False; - -#else /* defined(I_HATE_WINDOWS_REPLY_CODE) */ - -JRA - This code is broken with BDC rollover - we need to do a full -NT GETDC call, UNICODE, NT domain SID and uncle tom cobbley and all... - - int retries = 3; - int retry_time = 2000; - struct timeval tval; - struct packet_struct p; - struct dgram_packet *dgram = &p.packet.dgram; - char *ptr,*p2; - char tmp[4]; - int len; - struct sockaddr_in sock_name; - int sock_len = sizeof(sock_name); - const char *mailslot = NET_LOGON_MAILSLOT; - char *mailslot_name; - char buffer[1024]; - char *bufp; - int dgm_id = generate_trn_id(); - int sock = open_socket_in(SOCK_DGRAM, 0, 3, interpret_addr(lp_socket_address()), True ); - - if(sock == -1) - return False; - - /* Find out the transient UDP port we have been allocated. */ - if(getsockname(sock, (struct sockaddr *)&sock_name, &sock_len)<0) { - DEBUG(0,("lookup_pdc_name: Failed to get local UDP port. Error was %s\n", - strerror(errno))); - close(sock); - return False; - } - - /* - * Create the request data. - */ - - memset(buffer,'\0',sizeof(buffer)); - bufp = buffer; - SSVAL(bufp,0,QUERYFORPDC); - bufp += 2; - fstrcpy(bufp,srcname); - bufp += (strlen(bufp) + 1); - slprintf(bufp, sizeof(fstring)-1, "\\MAILSLOT\\NET\\GETDC%d", dgm_id); - mailslot_name = bufp; - bufp += (strlen(bufp) + 1); - bufp = ALIGN2(bufp, buffer); - bufp += push_ucs2(NULL, bufp, srcname, sizeof(buffer) - (bufp - buffer), STR_TERMINATE); - - SIVAL(bufp,0,1); - SSVAL(bufp,4,0xFFFF); - SSVAL(bufp,6,0xFFFF); - bufp += 8; - len = PTR_DIFF(bufp,buffer); - - memset((char *)&p,'\0',sizeof(p)); - - /* DIRECT GROUP or UNIQUE datagram. */ - dgram->header.msg_type = 0x10; - dgram->header.flags.node_type = M_NODE; - dgram->header.flags.first = True; - dgram->header.flags.more = False; - dgram->header.dgm_id = dgm_id; - dgram->header.source_ip = *iface_ip(*pdc_ip); - dgram->header.source_port = ntohs(sock_name.sin_port); - dgram->header.dgm_length = 0; /* Let build_dgram() handle this. */ - dgram->header.packet_offset = 0; - - make_nmb_name(&dgram->source_name,srcname,0); - make_nmb_name(&dgram->dest_name,domain,0x1C); - - 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); - - CVAL(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,buffer,len); - p2 += len; - - dgram->datasize = PTR_DIFF(p2,ptr+4); /* +4 for tcp length. */ - - p.ip = *pdc_ip; - p.port = DGRAM_PORT; - p.fd = sock; - p.timestamp = time(NULL); - p.packet_type = DGRAM_PACKET; - - GetTimeOfDay(&tval); - - if (!send_packet(&p)) { - DEBUG(0,("lookup_pdc_name: send_packet failed.\n")); - close(sock); - return False; - } - - retries--; - - while (1) { - struct timeval tval2; - struct packet_struct *p_ret; - - GetTimeOfDay(&tval2); - if (TvalDiff(&tval,&tval2) > retry_time) { - if (!retries) - break; - if (!send_packet(&p)) { - DEBUG(0,("lookup_pdc_name: send_packet failed.\n")); - close(sock); - return False; - } - GetTimeOfDay(&tval); - retries--; - } - - if ((p_ret = receive_dgram_packet(sock,90,mailslot_name))) { - struct dgram_packet *dgram2 = &p_ret->packet.dgram; - char *buf; - char *buf2; - - buf = &dgram2->data[0]; - buf -= 4; - - if (CVAL(buf,smb_com) != SMBtrans) { - DEBUG(0,("lookup_pdc_name: datagram type %u != SMBtrans(%u)\n", (unsigned int) - CVAL(buf,smb_com), (unsigned int)SMBtrans )); - free_packet(p_ret); - continue; - } - - len = SVAL(buf,smb_vwv11); - buf2 = smb_base(buf) + SVAL(buf,smb_vwv12); - - if (len <= 0) { - DEBUG(0,("lookup_pdc_name: datagram len < 0 (%d)\n", len )); - free_packet(p_ret); - continue; - } - - DEBUG(4,("lookup_pdc_name: datagram reply from %s to %s IP %s for %s of type %d len=%d\n", - nmb_namestr(&dgram2->source_name),nmb_namestr(&dgram2->dest_name), - inet_ntoa(p_ret->ip), smb_buf(buf),SVAL(buf2,0),len)); - - if(SVAL(buf2,0) != QUERYFORPDC_R) { - DEBUG(0,("lookup_pdc_name: datagram type (%u) != QUERYFORPDC_R(%u)\n", - (unsigned int)SVAL(buf,0), (unsigned int)QUERYFORPDC_R )); - free_packet(p_ret); - continue; - } - - buf2 += 2; - /* Note this is safe as it is a bounded strcpy. */ - fstrcpy(ret_name, buf2); - ret_name[sizeof(fstring)-1] = '\0'; - close(sock); - free_packet(p_ret); - return True; - } - } - - close(sock); - return False; -#endif /* defined(I_HATE_WINDOWS_REPLY_CODE) */ } /******************************************************** @@ -1214,15 +1035,34 @@ BOOL get_pdc_ip(const char *domain, struct in_addr *ip) { struct in_addr *ip_list; int count; + int i = 0; /* Look up #1B name */ if (!internal_resolve_name(domain, 0x1b, &ip_list, &count)) return False; - SMB_ASSERT(count == 1); + /* if we get more than 1 IP back we have to assume it is a + multi-homed PDC and not a mess up */ + + if ( count > 1 ) { + DEBUG(6,("get_pdc_ip: PDC has %d IP addresses!\n", count)); + + /* look for a local net */ + for ( i=0; i