/*
- Unix SMB/Netbios implementation.
- Version 1.9.
+ Unix SMB/CIFS implementation.
NBT netbios routines and daemon - version 2
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Luke Kenneth Casson Leighton 1994-1998
Copyright (C) Jeremy Allison 1994-1998
+ Copyright (C) Jim McDonough 2002
+ Copyright (C) Anthony Liguori 2002
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
#include "includes.h"
-extern int DEBUGLEVEL;
+struct sam_database_info {
+ uint32 index;
+ uint32 serial_lo, serial_hi;
+ uint32 date_lo, date_hi;
+};
-extern pstring global_myname;
-extern fstring global_myworkgroup;
+/****************************************************************************
+Send a message to smbd to do a sam delta sync
+**************************************************************************/
+static void send_repl_message(uint32 low_serial)
+{
+ TDB_CONTEXT *tdb;
+
+ tdb = tdb_open_log(lock_path("connections.tdb"), 0,
+ TDB_DEFAULT, O_RDONLY, 0);
+
+ if (!tdb) {
+ DEBUG(3, ("send_repl_message(): failed to open connections "
+ "database\n"));
+ return;
+ }
+
+ DEBUG(3, ("sending replication message, serial = 0x%04x\n",
+ low_serial));
+
+ message_send_all(tdb, MSG_SMB_SAM_REPL, &low_serial,
+ sizeof(low_serial), False, NULL);
+
+ tdb_close(tdb);
+}
/****************************************************************************
Process a domain logon packet
pstring outbuf;
int code;
uint16 token = 0;
- uint32 ntversion;
- uint16 lmnttoken;
- uint16 lm20token;
+ uint32 ntversion = 0;
+ uint16 lmnttoken = 0;
+ uint16 lm20token = 0;
uint32 domainsidsize;
+ BOOL short_request = False;
char *getdc;
char *uniuser; /* Unicode user name. */
+ pstring ascuser;
char *unicomp; /* Unicode computer name. */
memset(outbuf, 0, sizeof(outbuf));
return;
}
- pstrcpy(my_name, global_myname);
- strupper(my_name);
+ pstrcpy(my_name, global_myname());
code = SVAL(buf,0);
- DEBUG(1,("process_logon_packet: Logon from %s: code = %x\n", inet_ntoa(p->ip), code));
+ DEBUG(1,("process_logon_packet: Logon from %s: code = 0x%x\n", inet_ntoa(p->ip), code));
switch (code)
{
send_mailslot(True, getdc,
outbuf,PTR_DIFF(q,outbuf),
- dgram->dest_name.name,
- dgram->dest_name.name_type,
- dgram->source_name.name,
+ global_myname(), 0x0,
+ machine,
dgram->source_name.name_type,
p->ip, *iface_ip(p->ip), p->port);
break;
char *q = buf + 2;
char *machine = q;
- getdc = skip_string(machine,1);
- unicomp = skip_string(getdc,1);
-
- q = align2(unicomp, buf);
-
- q = skip_unibuf(q, buf+len-q);
+ if (!lp_domain_master())
+ {
+ /* We're not Primary Domain Controller -- ignore this */
+ return;
+ }
- ntversion = IVAL(q, 0);
- q += 4;
- lmnttoken = SVAL(q, 0);
- q += 2;
- lm20token = SVAL(q, 0);
- q += 2;
+ getdc = skip_string(machine,1);
+ q = skip_string(getdc,1);
+ q = ALIGN2(q, buf);
+
+ /* at this point we can work out if this is a W9X or NT style
+ request. Experiments show that the difference is wether the
+ packet ends here. For a W9X request we now end with a pair of
+ bytes (usually 0xFE 0xFF) whereas with NT we have two further
+ strings - the following is a simple way of detecting this */
+ if (len - PTR_DIFF(q, buf) <= 3) {
+ short_request = True;
+ } else {
+ unicomp = q;
+
+ /* A full length (NT style) request */
+ q = skip_unibuf(unicomp, PTR_DIFF(buf + len, unicomp));
+
+ if (len - PTR_DIFF(q, buf) > 8) {
+ /* with NT5 clients we can sometimes
+ get additional data - a length specificed string
+ containing the domain name, then 16 bytes of
+ data (no idea what it is) */
+ int dom_len = CVAL(q, 0);
+ q++;
+ if (dom_len != 0) {
+ q += dom_len + 1;
+ }
+ q += 16;
+ }
+ ntversion = IVAL(q, 0);
+ lmnttoken = SVAL(q, 4);
+ lm20token = SVAL(q, 6);
+ }
/* Construct reply. */
-
q = outbuf;
SSVAL(q, 0, QUERYFORPDC_R);
q += 2;
fstrcpy(q, reply_name);
q = skip_string(q, 1); /* PDC name */
- q = align2(q, buf);
-
/* PDC and domain name */
- q = ascii_to_unibuf(q, my_name, outbuf+sizeof(outbuf)-q-2);
- q = ascii_to_unibuf(q, global_myworkgroup, outbuf+sizeof(outbuf)-q-2);
+ if (!short_request) /* Make a full reply */
+ {
+ q = ALIGN2(q, outbuf);
+
+ q += dos_PutUniCode(q, my_name, sizeof(pstring), True); /* PDC name */
+ q += dos_PutUniCode(q, lp_workgroup(),sizeof(pstring), True); /* Domain name*/
+ SIVAL(q, 0, 1); /* our nt version */
+ SSVAL(q, 4, 0xffff); /* our lmnttoken */
+ SSVAL(q, 6, 0xffff); /* our lm20token */
+ q += 8;
+ }
- SIVAL(q, 0, ntversion);
- q += 4;
- SSVAL(q, 0, lmnttoken);
- q += 2;
- SSVAL(q, 0, lm20token);
- q += 2;
+ /* RJS, 21-Feb-2000, we send a short reply if the request was short */
DEBUG(3,("process_logon_packet: GETDC request from %s at IP %s, \
reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
send_mailslot(True, getdc,
outbuf,PTR_DIFF(q,outbuf),
- dgram->dest_name.name,
- dgram->dest_name.name_type,
+ global_myname(), 0x0,
dgram->source_name.name,
dgram->source_name.name_type,
p->ip, *iface_ip(p->ip), p->port);
case SAMLOGON:
{
char *q = buf + 2;
+ fstring asccomp;
q += 2;
unicomp = q;
- uniuser = skip_unibuf(unicomp, buf+len-q);
- getdc = skip_unibuf(uniuser, buf+len-q);
+ uniuser = skip_unibuf(unicomp, PTR_DIFF(buf+len, unicomp));
+ getdc = skip_unibuf(uniuser,PTR_DIFF(buf+len, uniuser));
q = skip_string(getdc,1);
- q += 4;
+ q += 4; /* Account Control Bits - indicating username type */
domainsidsize = IVAL(q, 0);
q += 4;
- q += domainsidsize + 2;
- q = align2(q, buf);
+
+ DEBUG(3,("process_logon_packet: SAMLOGON sidsize %d, len = %d\n", domainsidsize, len));
+
+ if (domainsidsize < (len - PTR_DIFF(q, buf)) && (domainsidsize != 0)) {
+ q += domainsidsize;
+ q = ALIGN4(q, buf);
+ }
+
+ DEBUG(3,("process_logon_packet: len = %d PTR_DIFF(q, buf) = %d\n", len, PTR_DIFF(q, buf) ));
+
+ if (len - PTR_DIFF(q, buf) > 8) {
+ /* with NT5 clients we can sometimes
+ get additional data - a length specificed string
+ containing the domain name, then 16 bytes of
+ data (no idea what it is) */
+ int dom_len = CVAL(q, 0);
+ q++;
+ if (dom_len < (len - PTR_DIFF(q, buf)) && (dom_len != 0)) {
+ q += dom_len + 1;
+ }
+ q += 16;
+ }
ntversion = IVAL(q, 0);
- q += 4;
- lmnttoken = SVAL(q, 0);
- q += 2;
- lm20token = SVAL(q, 0);
- q += 2;
+ lmnttoken = SVAL(q, 4);
+ lm20token = SVAL(q, 6);
+ q += 8;
- DEBUG(3,("process_logon_packet: SAMLOGON sidsize %d ntv %x\n", domainsidsize, ntversion));
+ DEBUG(3,("process_logon_packet: SAMLOGON sidsize %d ntv %d\n", domainsidsize, ntversion));
/*
* we respond regadless of whether the machine is in our password
* database. If it isn't then we let smbd send an appropriate error.
* Let's ignore the SID.
*/
+ pull_ucs2_pstring(ascuser, uniuser);
+ pull_ucs2_fstring(asccomp, unicomp);
+ DEBUG(3,("process_logon_packet: SAMLOGON user %s\n", ascuser));
fstrcpy(reply_name,"\\\\"); /* Here it wants \\LOGONSERVER. */
fstrcpy(reply_name+2,my_name);
- if (DEBUGLVL(3))
- {
- fstring ascuser;
- fstring asccomp;
-
- unibuf_to_ascii(ascuser, uniuser, sizeof(ascuser)-1);
- unibuf_to_ascii(asccomp, unicomp, sizeof(asccomp)-1);
-
- DEBUGADD(3,("process_logon_packet: SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
- asccomp,inet_ntoa(p->ip), ascuser, reply_name,
- global_myworkgroup, SAMLOGON_R, lmnttoken));
- }
+ DEBUG(3,("process_logon_packet: SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
+ asccomp,inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(),
+ SAMLOGON_R ,lmnttoken));
/* Construct reply. */
q = outbuf;
- SSVAL(q, 0, SAMLOGON_R);
- q += 2;
-
- /* Logon server, trust account, domain */
- q = ascii_to_unibuf(q, reply_name, outbuf+sizeof(outbuf)-q-2);
- q = uni_strncpy(q, uniuser, outbuf+sizeof(outbuf)-q-2);
- q = ascii_to_unibuf(q, lp_workgroup(), outbuf+sizeof(outbuf)-q-2);
-
- SIVAL(q, 0, ntversion);
- q += 4;
- SSVAL(q, 0, lmnttoken);
- q += 2;
- SSVAL(q, 0, lm20token);
- q += 2;
+ /* we want the simple version unless we are an ADS PDC..which means */
+ /* never, at least for now */
+ if ((ntversion < 11) || (SEC_ADS != lp_security()) || (ROLE_DOMAIN_PDC != lp_server_role())) {
+ if (SVAL(uniuser, 0) == 0) {
+ SSVAL(q, 0, SAMLOGON_UNK_R); /* user unknown */
+ } else {
+ SSVAL(q, 0, SAMLOGON_R);
+ }
+
+ q += 2;
+
+ q += dos_PutUniCode(q, reply_name,sizeof(pstring), True);
+ q += dos_PutUniCode(q, ascuser, sizeof(pstring), True);
+ q += dos_PutUniCode(q, lp_workgroup(),sizeof(pstring), True);
+ }
+#ifdef HAVE_ADS
+ else {
+ GUID domain_guid;
+ pstring domain;
+ char *component, *dc, *q1;
+ uint8 size;
+
+ safe_strcpy(domain, lp_realm(), sizeof(domain));
+
+ if (SVAL(uniuser, 0) == 0) {
+ SSVAL(q, 0, SAMLOGON_AD_UNK_R); /* user unknown */
+ } else {
+ SSVAL(q, 0, SAMLOGON_AD_R);
+ }
+ q += 2;
+
+ SSVAL(q, 0, 0);
+ q += 2;
+ SIVAL(q, 0, ADS_PDC|ADS_GC|ADS_LDAP|ADS_DS|
+ ADS_KDC|ADS_TIMESERV|ADS_CLOSEST|ADS_WRITABLE);
+ q += 4;
+
+ /* Push Domain GUID */
+ if (False == secrets_fetch_domain_guid(domain, &domain_guid)) {
+ DEBUG(2, ("Could not fetch DomainGUID for %s\n", domain));
+ return;
+ }
+ memcpy(q, &domain_guid, sizeof(domain_guid));
+ q += sizeof(domain_guid);
+
+ /* Push domain components */
+ dc = domain;
+ q1 = q;
+ while ((component = strtok(dc, "."))) {
+ dc = NULL;
+ size = push_ascii(&q[1], component, -1, 0);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+ }
+ SCVAL(q, 0, 0); q++;
+ SSVAL(q, 0, 0x18c0); /* not sure what this is for, but */
+ q += 2; /* it must follow the domain name. */
+
+ /* Push dns host name */
+ size = push_ascii(&q[1], global_myname(), -1, 0);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+ SSVAL(q, 0, 0x18c0); /* not sure what this is for, but */
+ q += 2; /* it must follow the domain name. */
+
+ /* Push NETBIOS of domain */
+ size = push_ascii(&q[1], domain, -1, STR_UPPER);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+ SCVAL(q, 0, 0); q++; /* is this a null terminator or empty field */
+ /* null terminator would not be needed because size is included */
+
+ /* Push NETBIOS of hostname */
+ size = push_ascii(&q[1], my_name, -1, 0);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+ SCVAL(q, 0, 0); q++; /* null terminator or empty field? */
+
+ /* Push user account */
+ size = push_ascii(&q[1], ascuser, -1, 0);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+
+ /* Push 'Default-First-Site-Name' */
+ size = push_ascii(&q[1], "Default-First-Site-Name", -1, 0);
+ SCVAL(q, 0, size);
+ q += (size + 1);
+
+ SSVAL(q, 0, 0xc000); /* unknown */
+ SCVAL(q, 2, PTR_DIFF(q,q1));
+ SCVAL(q, 3, 0x10); /* unknown */
+ q += 4;
+
+ SIVAL(q, 0, 0x00000002); q += 4; /* unknown */
+ SIVAL(q, 0, (iface_ip(p->ip))->s_addr); q += 4;
+ SIVAL(q, 0, 0x00000000); q += 4; /* unknown */
+ SIVAL(q, 0, 0x00000000); q += 4; /* unknown */
+ }
+#endif
+
+ /* tell the client what version we are */
+ SIVAL(q, 0, ((ntversion < 11) || (SEC_ADS != lp_security())) ? 1 : 13);
+ /* our ntversion */
+ SSVAL(q, 4, 0xffff); /* our lmnttoken */
+ SSVAL(q, 6, 0xffff); /* our lm20token */
+ q += 8;
dump_data(4, outbuf, PTR_DIFF(q, outbuf));
send_mailslot(True, getdc,
outbuf,PTR_DIFF(q,outbuf),
- dgram->dest_name.name,
- dgram->dest_name.name_type,
+ global_myname(), 0x0,
dgram->source_name.name,
dgram->source_name.name_type,
p->ip, *iface_ip(p->ip), p->port);
break;
}
+ /* Announce change to UAS or SAM. Send by the domain controller when a
+ replication event is required. */
+
+ case SAM_UAS_CHANGE: {
+ struct sam_database_info *db_info;
+ char *q = buf + 2;
+ int i, db_count;
+ uint32 low_serial;
+
+ /* Header */
+
+ low_serial = IVAL(q, 0); q += 4; /* Low serial number */
+
+ q += 4; /* Date/time */
+ q += 4; /* Pulse */
+ q += 4; /* Random */
+
+ /* Domain info */
+
+ q = skip_string(q, 1); /* PDC name */
+ q = skip_string(q, 1); /* Domain name */
+ q = skip_unibuf(q, PTR_DIFF(buf + len, q)); /* Unicode PDC name */
+ q = skip_unibuf(q, PTR_DIFF(buf + len, q)); /* Unicode domain name */
+
+ /* Database info */
+
+ db_count = SVAL(q, 0); q += 2;
+
+ db_info = (struct sam_database_info *)
+ malloc(sizeof(struct sam_database_info) * db_count);
+
+ if (db_info == NULL) {
+ DEBUG(3, ("out of memory allocating info for %d databases\n",
+ db_count));
+ return;
+ }
+
+ for (i = 0; i < db_count; i++) {
+ db_info[i].index = IVAL(q, 0);
+ db_info[i].serial_lo = IVAL(q, 4);
+ db_info[i].serial_hi = IVAL(q, 8);
+ db_info[i].date_lo = IVAL(q, 12);
+ db_info[i].date_hi = IVAL(q, 16);
+ q += 20;
+ }
+
+ /* Domain SID */
+
+ q += IVAL(q, 0) + 4; /* 4 byte length plus data */
+
+ q += 2; /* Alignment? */
+
+ /* Misc other info */
+
+ q += 4; /* NT version (0x1) */
+ q += 2; /* LMNT token (0xff) */
+ q += 2; /* LM20 token (0xff) */
+
+ SAFE_FREE(db_info); /* Not sure whether we need to do anything
+ useful with these */
+
+ /* Send message to smbd */
+
+ send_repl_message(low_serial);
+
+ break;
+ }
+
default:
{
DEBUG(3,("process_logon_packet: Unknown domain request %d\n",code));
git.samba.org / samba.git / blobdiff