BOOL global_in_nmbd = False;
/****************************************************************************
-interpret a node status response
+ Interpret a node status response.
****************************************************************************/
+
static void _interpret_node_status(char *p, char *master,char *rname)
{
int numnames = CVAL(p,0);
if (master) *master = 0;
p += 1;
- while (numnames--)
- {
- char qname[17];
- int type;
- fstring flags;
- int i;
- *flags = 0;
- StrnCpy(qname,p,15);
- type = CVAL(p,15);
- p += 16;
-
- fstrcat(flags, (p[0] & 0x80) ? "<GROUP> " : " ");
- if ((p[0] & 0x60) == 0x00) fstrcat(flags,"B ");
- if ((p[0] & 0x60) == 0x20) fstrcat(flags,"P ");
- if ((p[0] & 0x60) == 0x40) fstrcat(flags,"M ");
- if ((p[0] & 0x60) == 0x60) fstrcat(flags,"H ");
- if (p[0] & 0x10) fstrcat(flags,"<DEREGISTERING> ");
- if (p[0] & 0x08) fstrcat(flags,"<CONFLICT> ");
- if (p[0] & 0x04) fstrcat(flags,"<ACTIVE> ");
- if (p[0] & 0x02) fstrcat(flags,"<PERMANENT> ");
-
- if (master && !*master && type == 0x1d) {
- StrnCpy(master,qname,15);
- trim_string(master,NULL," ");
- }
+ while (numnames--) {
+ char qname[17];
+ int type;
+ fstring flags;
+ int i;
+ *flags = 0;
+ StrnCpy(qname,p,15);
+ type = CVAL(p,15);
+ p += 16;
+
+ fstrcat(flags, (p[0] & 0x80) ? "<GROUP> " : " ");
+ if ((p[0] & 0x60) == 0x00) fstrcat(flags,"B ");
+ if ((p[0] & 0x60) == 0x20) fstrcat(flags,"P ");
+ if ((p[0] & 0x60) == 0x40) fstrcat(flags,"M ");
+ if ((p[0] & 0x60) == 0x60) fstrcat(flags,"H ");
+ if (p[0] & 0x10) fstrcat(flags,"<DEREGISTERING> ");
+ if (p[0] & 0x08) fstrcat(flags,"<CONFLICT> ");
+ if (p[0] & 0x04) fstrcat(flags,"<ACTIVE> ");
+ if (p[0] & 0x02) fstrcat(flags,"<PERMANENT> ");
+
+ if (master && !*master && type == 0x1d) {
+ StrnCpy(master,qname,15);
+ trim_string(master,NULL," ");
+ }
- if (rname && !*rname && type == 0x20 && !(p[0]&0x80)) {
- StrnCpy(rname,qname,15);
- trim_string(rname,NULL," ");
- }
+ if (rname && !*rname && type == 0x20 && !(p[0]&0x80)) {
+ StrnCpy(rname,qname,15);
+ trim_string(rname,NULL," ");
+ }
- for (i = strlen( qname) ; --i >= 0 ; ) {
- if (!isprint((int)qname[i])) qname[i] = '.';
- }
- DEBUG(1,("\t%-15s <%02x> - %s\n",qname,type,flags));
- p+=2;
+ for (i = strlen( qname) ; --i >= 0 ; ) {
+ if (!isprint((int)qname[i])) qname[i] = '.';
}
+ DEBUG(1,("\t%-15s <%02x> - %s\n",qname,type,flags));
+ p+=2;
+ }
+
DEBUG(1,("num_good_sends=%d num_good_receives=%d\n",
IVAL(p,20),IVAL(p,24)));
}
-
/****************************************************************************
- do a netbios name status query on a host
+ Internal function handling a netbios name status query on a host.
+**************************************************************************/
- the "master" parameter is a hack used for finding workgroups.
- **************************************************************************/
-BOOL name_status(int fd,char *name,int name_type,BOOL recurse,
- struct in_addr to_ip,char *master,char *rname,
+static BOOL internal_name_status(int fd,char *name,int name_type,BOOL recurse,
+ struct in_addr to_ip,char *master,char *rname, BOOL verbose,
+ void (*fn_interpret_node_status)(char *, char *,char *),
void (*fn)(struct packet_struct *))
{
BOOL found=False;
struct nmb_packet *nmb = &p.packet.nmb;
static int name_trn_id = 0;
- bzero((char *)&p,sizeof(p));
+ memset((char *)&p,'\0',sizeof(p));
if (!name_trn_id) name_trn_id = ((unsigned)time(NULL)%(unsigned)0x7FFF) +
((unsigned)getpid()%(unsigned)100);
retries--;
- while (1)
- {
- struct timeval tval2;
- GetTimeOfDay(&tval2);
- if (TvalDiff(&tval,&tval2) > retry_time) {
- if (!retries) break;
- if (!found && !send_packet(&p))
- return False;
- GetTimeOfDay(&tval);
- retries--;
- }
+ while (1) {
+ struct timeval tval2;
+ GetTimeOfDay(&tval2);
+ if (TvalDiff(&tval,&tval2) > retry_time) {
+ if (!retries)
+ break;
+ if (!found && !send_packet(&p))
+ return False;
+ GetTimeOfDay(&tval);
+ retries--;
+ }
- if ((p2=receive_packet(fd,NMB_PACKET,90)))
- {
- struct nmb_packet *nmb2 = &p2->packet.nmb;
+ if ((p2=receive_packet(fd,NMB_PACKET,90))) {
+ struct nmb_packet *nmb2 = &p2->packet.nmb;
debug_nmb_packet(p2);
- if (nmb->header.name_trn_id != nmb2->header.name_trn_id ||
- !nmb2->header.response) {
- /* its not for us - maybe deal with it later */
- if (fn)
- fn(p2);
- else
- free_packet(p2);
- continue;
- }
+ if (nmb->header.name_trn_id != nmb2->header.name_trn_id ||
+ !nmb2->header.response) {
+ /* its not for us - maybe deal with it later */
+ if (fn)
+ fn(p2);
+ else
+ free_packet(p2);
+ continue;
+ }
if (nmb2->header.opcode != 0 ||
nmb2->header.nm_flags.bcast ||
continue;
}
- _interpret_node_status(&nmb2->answers->rdata[0], master,rname);
+ if(fn_interpret_node_status)
+ (*fn_interpret_node_status)(&nmb2->answers->rdata[0],master,rname);
free_packet(p2);
return(True);
}
- }
-
+ }
- DEBUG(0,("No status response (this is not unusual)\n"));
+ if(verbose)
+ DEBUG(0,("No status response (this is not unusual)\n"));
return(False);
}
+/****************************************************************************
+ Do a netbios name status query on a host.
+ The "master" parameter is a hack used for finding workgroups.
+**************************************************************************/
+
+BOOL name_status(int fd,char *name,int name_type,BOOL recurse,
+ struct in_addr to_ip,char *master,char *rname,
+ void (*fn)(struct packet_struct *))
+{
+ return internal_name_status(fd,name,name_type,recurse,
+ to_ip,master,rname,True,
+ _interpret_node_status, fn);
+}
/****************************************************************************
- do a netbios name query to find someones IP
- returns an array of IP addresses or NULL if none
- *count will be set to the number of addresses returned
- ****************************************************************************/
-struct in_addr *name_query(int fd,char *name,int name_type, BOOL bcast,BOOL recurse,
+ Do a netbios name query to find someones IP.
+ Returns an array of IP addresses or NULL if none.
+ *count will be set to the number of addresses returned.
+****************************************************************************/
+
+struct in_addr *name_query(int fd,const char *name,int name_type, BOOL bcast,BOOL recurse,
struct in_addr to_ip, int *count, void (*fn)(struct packet_struct *))
{
BOOL found=False;
static int name_trn_id = 0;
struct in_addr *ip_list = NULL;
- bzero((char *)&p,sizeof(p));
+ memset((char *)&p,'\0',sizeof(p));
(*count) = 0;
if (!name_trn_id) name_trn_id = ((unsigned)time(NULL)%(unsigned)0x7FFF) +
retries--;
while (1)
+ {
+ struct timeval tval2;
+ GetTimeOfDay(&tval2);
+ if (TvalDiff(&tval,&tval2) > retry_time)
{
- struct timeval tval2;
- GetTimeOfDay(&tval2);
- if (TvalDiff(&tval,&tval2) > retry_time) {
- if (!retries) break;
- if (!found && !send_packet(&p))
- return NULL;
- GetTimeOfDay(&tval);
- retries--;
- }
+ if (!retries)
+ break;
+ if (!found && !send_packet(&p))
+ return NULL;
+ GetTimeOfDay(&tval);
+ retries--;
+ }
- if ((p2=receive_packet(fd,NMB_PACKET,90)))
- {
- struct nmb_packet *nmb2 = &p2->packet.nmb;
- debug_nmb_packet(p2);
-
- if (nmb->header.name_trn_id != nmb2->header.name_trn_id ||
- !nmb2->header.response) {
- /* its not for us - maybe deal with it later
- (put it on the queue?) */
- if (fn)
- fn(p2);
- else
- free_packet(p2);
- continue;
- }
+ if ((p2=receive_packet(fd,NMB_PACKET,90)))
+ {
+ struct nmb_packet *nmb2 = &p2->packet.nmb;
+ debug_nmb_packet(p2);
+
+ if (nmb->header.name_trn_id != nmb2->header.name_trn_id ||
+ !nmb2->header.response)
+ {
+ /*
+ * Its not for us - maybe deal with it later
+ * (put it on the queue?).
+ */
+ if (fn)
+ fn(p2);
+ else
+ free_packet(p2);
+ continue;
+ }
- if (nmb2->header.opcode != 0 ||
- nmb2->header.nm_flags.bcast ||
- nmb2->header.rcode ||
- !nmb2->header.ancount) {
- /* XXXX what do we do with this? could be a redirect, but
- we'll discard it for the moment */
- free_packet(p2);
- continue;
- }
+ if (nmb2->header.opcode != 0 ||
+ nmb2->header.nm_flags.bcast ||
+ nmb2->header.rcode ||
+ !nmb2->header.ancount)
+ {
+ /*
+ * XXXX what do we do with this? Could be a redirect, but
+ * we'll discard it for the moment.
+ */
+ free_packet(p2);
+ continue;
+ }
- ip_list = (struct in_addr *)Realloc(ip_list, sizeof(ip_list[0]) *
- ((*count)+nmb2->answers->rdlength/6));
- if (ip_list) {
- DEBUG(fn?3:2,("Got a positive name query response from %s ( ",
- inet_ntoa(p2->ip)));
- for (i=0;i<nmb2->answers->rdlength/6;i++) {
- putip((char *)&ip_list[(*count)],&nmb2->answers->rdata[2+i*6]);
- DEBUG(fn?3:2,("%s ",inet_ntoa(ip_list[(*count)])));
- (*count)++;
- }
- DEBUG(fn?3:2,(")\n"));
- }
- found=True; retries=0;
- free_packet(p2);
- if (fn) break;
- }
+ ip_list = (struct in_addr *)Realloc(ip_list, sizeof(ip_list[0]) *
+ ((*count)+nmb2->answers->rdlength/6));
+ if (ip_list)
+ {
+ DEBUG(fn?3:2,("Got a positive name query response from %s ( ",
+ inet_ntoa(p2->ip)));
+ for (i=0;i<nmb2->answers->rdlength/6;i++)
+ {
+ putip((char *)&ip_list[(*count)],&nmb2->answers->rdata[2+i*6]);
+ DEBUG(fn?3:2,("%s ",inet_ntoa(ip_list[(*count)])));
+ (*count)++;
+ }
+ DEBUG(fn?3:2,(")\n"));
+ }
+
+ found=True;
+ retries=0;
+ free_packet(p2);
+ if (fn)
+ break;
+
+ /*
+ * If we're doing a unicast lookup we only
+ * expect one reply. Don't wait the full 2
+ * seconds if we got one. JRA.
+ */
+ if(!bcast && found)
+ break;
}
+ }
return ip_list;
}
FILE *startlmhosts(char *fname)
{
- FILE *fp = fopen(fname,"r");
+ FILE *fp = sys_fopen(fname,"r");
if (!fp) {
DEBUG(4,("startlmhosts: Can't open lmhosts file %s. Error was %s\n",
fname, strerror(errno)));
Parse the next line in the lmhosts file.
*********************************************************/
-BOOL getlmhostsent( FILE *fp, char *name, int *name_type, struct in_addr *ipaddr)
+BOOL getlmhostsent( FILE *fp, pstring name, int *name_type, struct in_addr *ipaddr)
{
pstring line;
if (next_token(&ptr,ip ,NULL,sizeof(ip)))
++count;
- if (next_token(&ptr,name ,NULL, sizeof(name)))
+ if (next_token(&ptr,name ,NULL, sizeof(pstring)))
++count;
if (next_token(&ptr,flags,NULL, sizeof(flags)))
++count;
char *endptr;
ptr++;
- *name_type = (int)strtol(ptr, &endptr,0);
+ *name_type = (int)strtol(ptr, &endptr, 16);
if(!*ptr || (endptr == ptr))
{
}
/********************************************************
- Resolve a name into an IP address. Use this function if
- the string is either an IP address, DNS or host name
- or NetBIOS name. This uses the name switch in the
+ Resolve via "bcast" method.
+*********************************************************/
+
+static BOOL resolve_bcast(const char *name, int name_type,
+ struct in_addr **return_ip_list, int *return_count)
+{
+ int sock, i;
+ int num_interfaces = iface_count();
+
+ *return_ip_list = NULL;
+ *return_count = 0;
+
+ /*
+ * "bcast" means do a broadcast lookup on all the local interfaces.
+ */
+
+ DEBUG(3,("resolve_bcast: Attempting broadcast lookup for name %s<0x%x>\n", name, name_type));
+
+ sock = open_socket_in( SOCK_DGRAM, 0, 3,
+ interpret_addr(lp_socket_address()), True );
+
+ if (sock == -1) return False;
+
+ set_socket_options(sock,"SO_BROADCAST");
+ /*
+ * Lookup the name on all the interfaces, return on
+ * the first successful match.
+ */
+ for( i = num_interfaces-1; i >= 0; i--) {
+ struct in_addr sendto_ip;
+ /* Done this way to fix compiler error on IRIX 5.x */
+ sendto_ip = *iface_bcast(*iface_n_ip(i));
+ *return_ip_list = name_query(sock, name, name_type, True,
+ True, sendto_ip, return_count, NULL);
+ if(*return_ip_list != NULL) {
+ close(sock);
+ return True;
+ }
+ }
+
+ close(sock);
+ return False;
+}
+
+/********************************************************
+ Resolve via "wins" method.
+*********************************************************/
+
+static BOOL resolve_wins(const char *name, int name_type,
+ struct in_addr **return_iplist, int *return_count)
+{
+ int sock;
+ struct in_addr wins_ip;
+ BOOL wins_ismyip;
+
+ *return_iplist = NULL;
+ *return_count = 0;
+
+ /*
+ * "wins" means do a unicast lookup to the WINS server.
+ * Ignore if there is no WINS server specified or if the
+ * WINS server is one of our interfaces (if we're being
+ * called from within nmbd - we can't do this call as we
+ * would then block).
+ */
+
+ DEBUG(3,("resolve_wins: Attempting wins lookup for name %s<0x%x>\n", name, name_type));
+
+ if(!*lp_wins_server()) {
+ DEBUG(3,("resolve_wins: WINS server resolution selected and no WINS server present.\n"));
+ return False;
+ }
+
+ wins_ip = *interpret_addr2(lp_wins_server());
+ wins_ismyip = ismyip(wins_ip);
+
+ if((wins_ismyip && !global_in_nmbd) || !wins_ismyip) {
+ sock = open_socket_in( SOCK_DGRAM, 0, 3,
+ interpret_addr(lp_socket_address()), True );
+
+ if (sock != -1) {
+ *return_iplist = name_query(sock, name, name_type, False,
+ True, wins_ip, return_count, NULL);
+ if(*return_iplist != NULL) {
+ close(sock);
+ return True;
+ }
+ close(sock);
+ }
+ }
+
+ return False;
+}
+
+/********************************************************
+ Resolve via "lmhosts" method.
+*********************************************************/
+
+static BOOL resolve_lmhosts(const char *name, int name_type,
+ struct in_addr **return_iplist, int *return_count)
+{
+ /*
+ * "lmhosts" means parse the local lmhosts file.
+ */
+
+ FILE *fp;
+ pstring lmhost_name;
+ int name_type2;
+ struct in_addr return_ip;
+
+ *return_iplist = NULL;
+ *return_count = 0;
+
+ DEBUG(3,("resolve_lmhosts: Attempting lmhosts lookup for name %s<0x%x>\n", name, name_type));
+
+ fp = startlmhosts( LMHOSTSFILE );
+ if(fp) {
+ while (getlmhostsent(fp, lmhost_name, &name_type2, &return_ip)) {
+ if (strequal(name, lmhost_name) &&
+ ((name_type2 == -1) || (name_type == name_type2))
+ ) {
+ endlmhosts(fp);
+ *return_iplist = (struct in_addr *)malloc(sizeof(struct in_addr));
+ if(*return_iplist == NULL) {
+ DEBUG(3,("resolve_lmhosts: malloc fail !\n"));
+ return False;
+ }
+ **return_iplist = return_ip;
+ *return_count = 1;
+ return True;
+ }
+ }
+ endlmhosts(fp);
+ }
+ return False;
+}
+
+
+/********************************************************
+ Resolve via "hosts" method.
+*********************************************************/
+
+static BOOL resolve_hosts(const char *name,
+ struct in_addr **return_iplist, int *return_count)
+{
+ /*
+ * "host" means do a localhost, or dns lookup.
+ */
+ struct hostent *hp;
+
+ *return_iplist = NULL;
+ *return_count = 0;
+
+ DEBUG(3,("resolve_hosts: Attempting host lookup for name %s<0x20>\n", name));
+
+ if (((hp = Get_Hostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
+ struct in_addr return_ip;
+ putip((char *)&return_ip,(char *)hp->h_addr);
+ *return_iplist = (struct in_addr *)malloc(sizeof(struct in_addr));
+ if(*return_iplist == NULL) {
+ DEBUG(3,("resolve_hosts: malloc fail !\n"));
+ return False;
+ }
+ **return_iplist = return_ip;
+ *return_count = 1;
+ return True;
+ }
+ return False;
+}
+
+/********************************************************
+ Internal interface to resolve a name into an IP address.
+ Use this function if the string is either an IP address, DNS
+ or host name or NetBIOS name. This uses the name switch in the
smb.conf to determine the order of name resolution.
*********************************************************/
-BOOL resolve_name(char *name, struct in_addr *return_ip)
+static BOOL internal_resolve_name(const char *name, int name_type,
+ struct in_addr **return_iplist, int *return_count)
{
- int i;
- BOOL pure_address = True;
pstring name_resolve_list;
fstring tok;
char *ptr;
-
- if (strcmp(name,"0.0.0.0") == 0) {
- return_ip->s_addr = 0;
- return True;
- }
- if (strcmp(name,"255.255.255.255") == 0) {
- return_ip->s_addr = 0xFFFFFFFF;
- return True;
- }
-
- for (i=0; pure_address && name[i]; i++)
- if (!(isdigit((int)name[i]) || name[i] == '.'))
- pure_address = False;
-
- /* if it's in the form of an IP address then get the lib to interpret it */
- if (pure_address) {
- return_ip->s_addr = inet_addr(name);
+ BOOL allones = (strcmp(name,"255.255.255.255") == 0);
+ BOOL allzeros = (strcmp(name,"0.0.0.0") == 0);
+ BOOL is_address = is_ipaddress(name);
+ *return_iplist = NULL;
+ *return_count = 0;
+
+ if (allzeros || allones || is_address) {
+ *return_iplist = (struct in_addr *)malloc(sizeof(struct in_addr));
+ if(*return_iplist == NULL) {
+ DEBUG(3,("internal_resolve_name: malloc fail !\n"));
+ return False;
+ }
+ if(is_address) {
+ /* if it's in the form of an IP address then get the lib to interpret it */
+ (*return_iplist)->s_addr = inet_addr(name);
+ } else {
+ (*return_iplist)->s_addr = allones ? 0xFFFFFFFF : 0;
+ *return_count = 1;
+ }
return True;
}
-
+
pstrcpy(name_resolve_list, lp_name_resolve_order());
ptr = name_resolve_list;
- if (!ptr || !*ptr) ptr = "host";
+ if (!ptr || !*ptr)
+ ptr = "host";
while (next_token(&ptr, tok, LIST_SEP, sizeof(tok))) {
- if(strequal(tok, "host") || strequal(tok, "hosts")) {
+ if((strequal(tok, "host") || strequal(tok, "hosts"))) {
+ if (name_type == 0x20 && resolve_hosts(name, return_iplist, return_count)) {
+ return True;
+ }
+ } else if(strequal( tok, "lmhosts")) {
+ if (resolve_lmhosts(name, name_type, return_iplist, return_count)) {
+ return True;
+ }
+ } else if(strequal( tok, "wins")) {
+ /* don't resolve 1D via WINS */
+ if (name_type != 0x1D &&
+ resolve_wins(name, name_type, return_iplist, return_count)) {
+ return True;
+ }
+ } else if(strequal( tok, "bcast")) {
+ if (resolve_bcast(name, name_type, return_iplist, return_count)) {
+ return True;
+ }
+ } else {
+ DEBUG(0,("resolve_name: unknown name switch type %s\n", tok));
+ }
+ }
- /*
- * "host" means do a localhost, or dns lookup.
- */
+ if((*return_iplist) != NULL) {
+ free((char *)(*return_iplist));
+ *return_iplist = NULL;
+ }
+ return False;
+}
- struct hostent *hp;
+/********************************************************
+ Internal interface to resolve a name into one IP address.
+ Use this function if the string is either an IP address, DNS
+ or host name or NetBIOS name. This uses the name switch in the
+ smb.conf to determine the order of name resolution.
+*********************************************************/
- DEBUG(3,("resolve_name: Attempting host lookup for name %s\n", name));
+BOOL resolve_name(const char *name, struct in_addr *return_ip, int name_type)
+{
+ struct in_addr *ip_list = NULL;
+ int count = 0;
- if (((hp = Get_Hostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
- putip((char *)return_ip,(char *)hp->h_addr);
- return True;
- }
+ if(internal_resolve_name(name, name_type, &ip_list, &count)) {
+ *return_ip = ip_list[0];
+ free((char *)ip_list);
+ return True;
+ }
+ if(ip_list != NULL)
+ free((char *)ip_list);
+ return False;
+}
- } else if(strequal( tok, "lmhosts")) {
+/********************************************************
+ Find the IP address of the master browser or DMB for a workgroup.
+*********************************************************/
- /*
- * "lmhosts" means parse the local lmhosts file.
- */
+BOOL find_master_ip(char *group, struct in_addr *master_ip)
+{
+ struct in_addr *ip_list = NULL;
+ int count = 0;
- FILE *fp;
- pstring lmhost_name;
- int name_type;
+ if (internal_resolve_name(group, 0x1D, &ip_list, &count)) {
+ *master_ip = ip_list[0];
+ free((char *)ip_list);
+ return True;
+ }
+ if(internal_resolve_name(group, 0x1B, &ip_list, &count)) {
+ *master_ip = ip_list[0];
+ free((char *)ip_list);
+ return True;
+ }
- DEBUG(3,("resolve_name: Attempting lmhosts lookup for name %s\n", name));
+ if(ip_list != NULL)
+ free((char *)ip_list);
+ return False;
+}
- fp = startlmhosts( LMHOSTSFILE );
- if(fp) {
- while( getlmhostsent(fp, lmhost_name, &name_type, return_ip ) ) {
- if( strequal(name, lmhost_name )) {
- endlmhosts(fp);
- return True;
- }
- }
- endlmhosts(fp);
- }
+/********************************************************
+ Internal function to extract the MACHINE<0x20> name.
+*********************************************************/
- } else if(strequal( tok, "wins")) {
+static void _lookup_pdc_name(char *p, char *master,char *rname)
+{
+ int numnames = CVAL(p,0);
- int sock;
+ *rname = '\0';
- /*
- * "wins" means do a unicast lookup to the WINS server.
- * Ignore if there is no WINS server specified or if the
- * WINS server is one of our interfaces (if we're being
- * called from within nmbd - we can't do this call as we
- * would then block).
- */
+ p += 1;
+ while (numnames--) {
+ int type = CVAL(p,15);
+ if(type == 0x20) {
+ StrnCpy(rname,p,15);
+ trim_string(rname,NULL," ");
+ return;
+ }
+ p += 18;
+ }
+}
- DEBUG(3,("resolve_name: Attempting wins lookup for name %s<0x20>\n", name));
-
- if(*lp_wins_server()) {
- struct in_addr wins_ip = *interpret_addr2(lp_wins_server());
- BOOL wins_ismyip = ismyip(wins_ip);
-
- if((wins_ismyip && !global_in_nmbd) || !wins_ismyip) {
- sock = open_socket_in( SOCK_DGRAM, 0, 3,
- interpret_addr(lp_socket_address()) );
-
- if (sock != -1) {
- struct in_addr *iplist = NULL;
- int count;
- iplist = name_query(sock, name, 0x20, False, True, wins_ip, &count, NULL);
- if(iplist != NULL) {
- *return_ip = iplist[0];
- free((char *)iplist);
- close(sock);
- return True;
- }
- close(sock);
- }
- }
- } else {
- DEBUG(3,("resolve_name: WINS server resolution selected and no WINS server present.\n"));
- }
- } else if(strequal( tok, "bcast")) {
+/********************************************************
+ Lookup a PDC name given a Domain name and IP address.
+*********************************************************/
- int sock;
+BOOL lookup_pdc_name(const char *srcname, const char *domain, struct in_addr *pdc_ip, char *ret_name)
+{
+#if !defined(I_HATE_WINDOWS_REPLY_CODE)
- /*
- * "bcast" means do a broadcast lookup on all the local interfaces.
- */
+ fstring pdc_name;
+ BOOL ret;
- DEBUG(3,("resolve_name: Attempting broadcast lookup for name %s<0x20>\n", name));
+ /*
+ * Due to the fact win WinNT *sucks* we must do a node status
+ * query here... JRA.
+ */
- sock = open_socket_in( SOCK_DGRAM, 0, 3,
- interpret_addr(lp_socket_address()) );
+ int sock = open_socket_in(SOCK_DGRAM, 0, 3, interpret_addr(lp_socket_address()), True );
- if (sock != -1) {
- struct in_addr *iplist = NULL;
- int count;
- int num_interfaces = iface_count();
- set_socket_options(sock,"SO_BROADCAST");
- /*
- * Lookup the name on all the interfaces, return on
- * the first successful match.
- */
- for( i = 0; i < num_interfaces; i++) {
- struct in_addr sendto_ip;
- /* Done this way to fix compiler error on IRIX 5.x */
- sendto_ip = *iface_bcast(*iface_n_ip(i));
- iplist = name_query(sock, name, 0x20, True, False, sendto_ip, &count, NULL);
- if(iplist != NULL) {
- *return_ip = iplist[0];
- free((char *)iplist);
- close(sock);
- return True;
- }
- }
+ if(sock == -1)
+ return False;
+
+ *pdc_name = '\0';
+
+ ret = internal_name_status(sock,"*SMBSERVER",0x20,True,
+ *pdc_ip,NULL,pdc_name,False,
+ _lookup_pdc_name,NULL);
+
+ close(sock);
+
+ if(ret && *pdc_name) {
+ fstrcpy(ret_name, pdc_name);
+ return True;
+ }
+
+ return False;
+
+#else /* defined(I_HATE_WINDOWS_REPLY_CODE) */
+ /*
+ * Sigh. I *love* this code, it took me ages to get right and it's
+ * completely *USELESS* because NT 4.x refuses to send the mailslot
+ * reply back to the correct port (it always uses 138).
+ * I hate NT when it does these things... JRA.
+ */
+
+ 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 = "\\MAILSLOT\\NET\\NETLOGON";
+ static int name_trn_id = 0;
+ char buffer[1024];
+ char *bufp;
+ 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);
+ fstrcpy(bufp,"\\MAILSLOT\\NET\\GETDC411");
+ bufp += (strlen(bufp) + 1);
+ bufp = align2(bufp, buffer);
+ dos_PutUniCode(bufp, srcname, sizeof(buffer) - (bufp - buffer) - 1);
+ bufp = skip_unicode_string(bufp, 1);
+ SIVAL(bufp,0,1);
+ SSVAL(bufp,4,0xFFFF);
+ SSVAL(bufp,6,0xFFFF);
+ bufp += 8;
+ len = PTR_DIFF(bufp,buffer);
+
+ if (!name_trn_id)
+ name_trn_id = ((unsigned)time(NULL)%(unsigned)0x7FFF) + ((unsigned)getpid()%(unsigned)100);
+ name_trn_id = (name_trn_id+1) % (unsigned)0x7FFF;
+
+ 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 = name_trn_id;
+ dgram->header.source_ip = sock_name.sin_addr;
+ 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,scope);
+ make_nmb_name(&dgram->dest_name,domain,0x1B,scope);
+
+ 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--;
+ }
- } else {
- DEBUG(0,("resolve_name: unknown name switch type %s\n", tok));
+ if ((p_ret = receive_packet(sock,NMB_PACKET,90))) {
+ struct nmb_packet *nmb2 = &p_ret->packet.nmb;
+ struct dgram_packet *dgram2 = &p_ret->packet.dgram;
+ char *buf;
+ char *buf2;
+
+ debug_nmb_packet(p_ret);
+
+ if (memcmp(&p.ip, &p_ret->ip, sizeof(p.ip))) {
+ /*
+ * Not for us.
+ */
+ DEBUG(0,("lookup_pdc_name: datagram return IP %s doesn't match\n", inet_ntoa(p_ret->ip) ));
+ free_packet(p_ret);
+ continue;
+ }
+
+ 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),CVAL(buf2,0),len));
+
+ if(SVAL(buf,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;
+ }
+
+ buf += 2;
+ /* Note this is safe as it is a bounded strcpy. */
+ fstrcpy(ret_name, buf);
+ ret_name[sizeof(fstring)-1] = '\0';
+ close(sock);
+ free_packet(p_ret);
+ return True;
}
}
+ close(sock);
return False;
+#endif /* I_HATE_WINDOWS_REPLY_CODE */
+}
+
+/********************************************************
+ Get the IP address list of the PDC/BDC's of a Domain.
+*********************************************************/
+
+BOOL get_dc_list(char *group, struct in_addr **ip_list, int *count)
+{
+ return internal_resolve_name(group, 0x1C, ip_list, count);
}
git.samba.org / kai / samba.git / blobdiff