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Diffstat (limited to 'source/namelogon.c')
-rw-r--r-- | source/namelogon.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/source/namelogon.c b/source/namelogon.c new file mode 100644 index 00000000000..d8e0fcfc768 --- /dev/null +++ b/source/namelogon.c @@ -0,0 +1,233 @@ +/* + Unix SMB/Netbios implementation. + Version 1.9. + NBT netbios routines and daemon - version 2 + Copyright (C) Andrew Tridgell 1994-1997 + + 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 + (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. + + Revision History: + + 14 jan 96: lkcl@pires.co.uk + added multiple workgroup domain master support + +*/ + +#include "includes.h" + +extern int ClientDGRAM; + +extern int DEBUGLEVEL; + +extern pstring myname; + + +/**************************************************************************** + process a domain logon packet + + **************************************************************************/ +void process_logon_packet(struct packet_struct *p,char *buf,int len) +{ + struct dgram_packet *dgram = &p->packet.dgram; + pstring my_name; + fstring reply_name; + BOOL add_slashes = False; + pstring outbuf; + int code,reply_code; + char unknown_byte = 0; + uint16 request_count = 0; + uint16 token = 0; + + uint32 ntversion; + uint16 lmnttoken; + uint16 lm20token; + uint32 allowableaccount; /* Control bits, i.e. 0x80 == workstation trust a/c */ + uint32 domainsidsize; + uint16 requestcount; + char *domainsid; + char *uniuser; /* Unicode user name */ + pstring ascuser; + char *mailslot; + char *unicomp; /* Unicode computer name */ + struct smb_passwd *smb_pass; /* To check if machine account exists */ + + if (!lp_domain_logons()) + { + DEBUG(3,("No domain logons\n")); + return; + } + + strcpy(my_name, myname); + strupper(my_name); + + code = SVAL(buf,0); + DEBUG(1,("namelogon from %s: %x\n", inet_ntoa(p->ip), code)); + + switch (code) + { + case 0: + { + char *q = buf + 2; + char *machine = q; + char *user = skip_string(machine,1); + + mailslot = skip_string(user,1); + q = skip_string(mailslot,1); + unknown_byte = CVAL(q,0); + request_count = SVAL(q,1); + token = SVAL(q,3); + + reply_code = 0x6; + strcpy(reply_name,my_name); + add_slashes = True; + + DEBUG(3,("Domain login request from %s(%s) user=%s token=%x\n", + machine,inet_ntoa(p->ip),user,token)); + + q = outbuf; + SSVAL(q, 0, 6); q += 2; + + strcpy(reply_name, "\\\\"); + strcat(reply_name, my_name); + strcpy(q, reply_name); q = skip_string(q, 1); /* PDC name */ + + SSVAL(q, 0, token); q += 2; + + dump_data(4, outbuf, PTR_DIFF(q, outbuf)); + + send_mailslot_reply(True, mailslot, ClientDGRAM, + outbuf,PTR_DIFF(q,outbuf), + my_name,&dgram->source_name.name[0],0x20,0, + p->ip, *iface_ip(p->ip)); + break; + } + + case QUERYFORPDC: + { + char *q = buf + 2; + char *machine = q; + mailslot = skip_string(machine,1); + unicomp = skip_string(mailslot,1); + + q = align2(q, buf); + + q = skip_unicode_string(unicomp,1); + + ntversion = IVAL(q, 0); q += 4; + lmnttoken = SVAL(q, 0); q += 2; + lm20token = SVAL(q, 0); q += 2; + + /* construct reply */ + + q = outbuf; + SSVAL(q, 0, QUERYFORPDC_R); q += 2; + + strcpy(reply_name,my_name); + strcpy(q, reply_name); q = skip_string(q, 1); /* PDC name */ + + q = align2(q, buf); + + PutUniCode(q, my_name); q = skip_unicode_string(q, 1); /* PDC name */ + PutUniCode(q, lp_workgroup()); q = skip_unicode_string(q, 1); /* Domain name. */ + + SIVAL(q, 0, ntversion); q += 4; + SSVAL(q, 0, lmnttoken); q += 2; + SSVAL(q, 0, lm20token); q += 2; + + DEBUG(3,("GETDC request from %s(%s), reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n", + machine,inet_ntoa(p->ip), reply_name, lp_workgroup(), + QUERYFORPDC_R, (uint32)ntversion, (uint32)lmnttoken, + (uint32)lm20token)); + + dump_data(4, outbuf, PTR_DIFF(q, outbuf)); + + send_mailslot_reply(True, mailslot,ClientDGRAM, + outbuf,PTR_DIFF(q,outbuf), + my_name,&dgram->source_name.name[0],0x20,0, + p->ip, *iface_ip(p->ip)); + return; + } + + case SAMLOGON: + { + char *q = buf + 2; + + requestcount = SVAL(q, 0); q += 2; + unicomp = q; + uniuser = skip_unicode_string(unicomp,1); + mailslot = skip_unicode_string(uniuser,1); + q = skip_string(mailslot,1); + allowableaccount = IVAL(q, 0); q += 4; + domainsidsize = IVAL(q, 0); q += 4; + domainsid = q; + q += domainsidsize + 3; + ntversion = IVAL(q, 0); q += 4; + lmnttoken = SVAL(q, 0); q += 2; + lm20token = SVAL(q, 0); q += 2; + DEBUG(3,("SAMLOGON sidsize %d ntv %d\n", domainsidsize, ntversion)); + + /* + If MACHINE$ is in our password database then respond, else ignore. + Let's ignore the SID. + */ + strcpy(ascuser,unistr(uniuser)); + DEBUG(3,("SAMLOGON user %s\n", ascuser)); + strcpy(reply_name,"\\\\"); /* Here it wants \\LOGONSERVER */ + strcpy(reply_name+2,my_name); /* PAXX: Assuming we are logon svr */ + smb_pass = get_smbpwnam(ascuser); + + if(!smb_pass) + { + DEBUG(3,("SAMLOGON request from %s(%s) for %s, not in password file\n", + unistr(unicomp),inet_ntoa(p->ip), ascuser)); + return; + } + else + { + DEBUG(3,("SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n", + unistr(unicomp),inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(), + SAMLOGON_R ,lmnttoken)); + } + + /* construct reply */ + + q = outbuf; + SSVAL(q, 0, SAMLOGON_R); q += 2; + + PutUniCode(q, reply_name); q = skip_unicode_string(q, 1); + unistrcpy(q, uniuser); q = skip_unicode_string(q, 1); /* User name (workstation trust account) */ + PutUniCode(q, lp_workgroup()); q = skip_unicode_string(q, 1); /* Domain name. */ + + SIVAL(q, 0, ntversion); q += 4; + SSVAL(q, 0, lmnttoken); q += 2; + SSVAL(q, 0, lm20token); q += 2; + + dump_data(4, outbuf, PTR_DIFF(q, outbuf)); + + send_mailslot_reply(True, mailslot,ClientDGRAM, + outbuf,PTR_DIFF(q,outbuf), + my_name,&dgram->source_name.name[0],0x20,0, + p->ip, *iface_ip(p->ip)); + break; + } + + default: + { + DEBUG(3,("Unknown domain request %d\n",code)); + return; + } + } + +} |