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-rw-r--r--source3/utils/nmblookup.c369
1 files changed, 369 insertions, 0 deletions
diff --git a/source3/utils/nmblookup.c b/source3/utils/nmblookup.c
new file mode 100644
index 0000000000..c04b628b1b
--- /dev/null
+++ b/source3/utils/nmblookup.c
@@ -0,0 +1,369 @@
+/*
+ Unix SMB/CIFS implementation.
+ NBT client - used to lookup netbios names
+ Copyright (C) Andrew Tridgell 1994-1998
+ Copyright (C) Jelmer Vernooij 2003 (Conversion to popt)
+
+ 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 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, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#include "includes.h"
+
+extern bool AllowDebugChange;
+
+static bool give_flags = false;
+static bool use_bcast = true;
+static bool got_bcast = false;
+static struct sockaddr_storage bcast_addr;
+static bool recursion_desired = false;
+static bool translate_addresses = false;
+static int ServerFD= -1;
+static bool RootPort = false;
+static bool find_status = false;
+
+/****************************************************************************
+ Open the socket communication.
+**************************************************************************/
+
+static bool open_sockets(void)
+{
+ struct sockaddr_storage ss;
+ const char *sock_addr = lp_socket_address();
+
+ if (!interpret_string_addr(&ss, sock_addr,
+ AI_NUMERICHOST|AI_PASSIVE)) {
+ DEBUG(0,("open_sockets: unable to get socket address "
+ "from string %s", sock_addr));
+ return false;
+ }
+ ServerFD = open_socket_in( SOCK_DGRAM,
+ (RootPort ? 137 : 0),
+ (RootPort ? 0 : 3),
+ &ss, true );
+
+ if (ServerFD == -1) {
+ return false;
+ }
+
+ set_socket_options( ServerFD, "SO_BROADCAST" );
+
+ DEBUG(3, ("Socket opened.\n"));
+ return true;
+}
+
+/****************************************************************************
+turn a node status flags field into a string
+****************************************************************************/
+static char *node_status_flags(unsigned char flags)
+{
+ static fstring ret;
+ fstrcpy(ret,"");
+
+ fstrcat(ret, (flags & 0x80) ? "<GROUP> " : " ");
+ if ((flags & 0x60) == 0x00) fstrcat(ret,"B ");
+ if ((flags & 0x60) == 0x20) fstrcat(ret,"P ");
+ if ((flags & 0x60) == 0x40) fstrcat(ret,"M ");
+ if ((flags & 0x60) == 0x60) fstrcat(ret,"H ");
+ if (flags & 0x10) fstrcat(ret,"<DEREGISTERING> ");
+ if (flags & 0x08) fstrcat(ret,"<CONFLICT> ");
+ if (flags & 0x04) fstrcat(ret,"<ACTIVE> ");
+ if (flags & 0x02) fstrcat(ret,"<PERMANENT> ");
+
+ return ret;
+}
+
+/****************************************************************************
+ Turn the NMB Query flags into a string.
+****************************************************************************/
+
+static char *query_flags(int flags)
+{
+ static fstring ret1;
+ fstrcpy(ret1, "");
+
+ if (flags & NM_FLAGS_RS) fstrcat(ret1, "Response ");
+ if (flags & NM_FLAGS_AA) fstrcat(ret1, "Authoritative ");
+ if (flags & NM_FLAGS_TC) fstrcat(ret1, "Truncated ");
+ if (flags & NM_FLAGS_RD) fstrcat(ret1, "Recursion_Desired ");
+ if (flags & NM_FLAGS_RA) fstrcat(ret1, "Recursion_Available ");
+ if (flags & NM_FLAGS_B) fstrcat(ret1, "Broadcast ");
+
+ return ret1;
+}
+
+/****************************************************************************
+ Do a node status query.
+****************************************************************************/
+
+static void do_node_status(int fd,
+ const char *name,
+ int type,
+ struct sockaddr_storage *pss)
+{
+ struct nmb_name nname;
+ int count, i, j;
+ NODE_STATUS_STRUCT *status;
+ struct node_status_extra extra;
+ fstring cleanname;
+ char addr[INET6_ADDRSTRLEN];
+
+ print_sockaddr(addr, sizeof(addr), pss);
+ d_printf("Looking up status of %s\n",addr);
+ make_nmb_name(&nname, name, type);
+ status = node_status_query(fd, &nname, pss, &count, &extra);
+ if (status) {
+ for (i=0;i<count;i++) {
+ pull_ascii_fstring(cleanname, status[i].name);
+ for (j=0;cleanname[j];j++) {
+ if (!isprint((int)cleanname[j])) {
+ cleanname[j] = '.';
+ }
+ }
+ d_printf("\t%-15s <%02x> - %s\n",
+ cleanname,status[i].type,
+ node_status_flags(status[i].flags));
+ }
+ d_printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
+ extra.mac_addr[0], extra.mac_addr[1],
+ extra.mac_addr[2], extra.mac_addr[3],
+ extra.mac_addr[4], extra.mac_addr[5]);
+ d_printf("\n");
+ SAFE_FREE(status);
+ } else {
+ d_printf("No reply from %s\n\n",addr);
+ }
+}
+
+
+/****************************************************************************
+ Send out one query.
+****************************************************************************/
+
+static bool query_one(const char *lookup, unsigned int lookup_type)
+{
+ int j, count, flags = 0;
+ struct sockaddr_storage *ip_list=NULL;
+
+ if (got_bcast) {
+ char addr[INET6_ADDRSTRLEN];
+ print_sockaddr(addr, sizeof(addr), &bcast_addr);
+ d_printf("querying %s on %s\n", lookup, addr);
+ ip_list = name_query(ServerFD,lookup,lookup_type,use_bcast,
+ use_bcast?true:recursion_desired,
+ &bcast_addr, &count, &flags, NULL);
+ } else {
+ const struct in_addr *bcast;
+ for (j=iface_count() - 1;
+ !ip_list && j >= 0;
+ j--) {
+ char addr[INET6_ADDRSTRLEN];
+ struct sockaddr_storage bcast_ss;
+
+ bcast = iface_n_bcast_v4(j);
+ if (!bcast) {
+ continue;
+ }
+ in_addr_to_sockaddr_storage(&bcast_ss, *bcast);
+ print_sockaddr(addr, sizeof(addr), &bcast_ss);
+ d_printf("querying %s on %s\n",
+ lookup, addr);
+ ip_list = name_query(ServerFD,lookup,lookup_type,
+ use_bcast,
+ use_bcast?True:recursion_desired,
+ &bcast_ss,&count, &flags, NULL);
+ }
+ }
+
+ if (!ip_list) {
+ return false;
+ }
+
+ if (give_flags) {
+ d_printf("Flags: %s\n", query_flags(flags));
+ }
+
+ for (j=0;j<count;j++) {
+ char addr[INET6_ADDRSTRLEN];
+ if (translate_addresses) {
+ char h_name[MAX_DNS_NAME_LENGTH];
+ h_name[0] = '\0';
+ if (sys_getnameinfo((const struct sockaddr *)&ip_list[j],
+ sizeof(struct sockaddr_storage),
+ h_name, sizeof(h_name),
+ NULL, 0,
+ NI_NAMEREQD)) {
+ continue;
+ }
+ d_printf("%s, ", h_name);
+ }
+ print_sockaddr(addr, sizeof(addr), &ip_list[j]);
+ d_printf("%s %s<%02x>\n", addr,lookup, lookup_type);
+ /* We can only do find_status if the ip address returned
+ was valid - ie. name_query returned true.
+ */
+ if (find_status) {
+ do_node_status(ServerFD, lookup,
+ lookup_type, &ip_list[j]);
+ }
+ }
+
+ safe_free(ip_list);
+
+ return (ip_list != NULL);
+}
+
+
+/****************************************************************************
+ main program
+****************************************************************************/
+int main(int argc,char *argv[])
+{
+ int opt;
+ unsigned int lookup_type = 0x0;
+ fstring lookup;
+ static bool find_master=False;
+ static bool lookup_by_ip = False;
+ poptContext pc;
+ TALLOC_CTX *frame = talloc_stackframe();
+
+ struct poptOption long_options[] = {
+ POPT_AUTOHELP
+ { "broadcast", 'B', POPT_ARG_STRING, NULL, 'B', "Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
+ { "flags", 'f', POPT_ARG_NONE, NULL, 'f', "List the NMB flags returned" },
+ { "unicast", 'U', POPT_ARG_STRING, NULL, 'U', "Specify address to use for unicast" },
+ { "master-browser", 'M', POPT_ARG_NONE, NULL, 'M', "Search for a master browser" },
+ { "recursion", 'R', POPT_ARG_NONE, NULL, 'R', "Set recursion desired in package" },
+ { "status", 'S', POPT_ARG_NONE, NULL, 'S', "Lookup node status as well" },
+ { "translate", 'T', POPT_ARG_NONE, NULL, 'T', "Translate IP addresses into names" },
+ { "root-port", 'r', POPT_ARG_NONE, NULL, 'r', "Use root port 137 (Win95 only replies to this)" },
+ { "lookup-by-ip", 'A', POPT_ARG_NONE, NULL, 'A', "Do a node status on <name> as an IP Address" },
+ POPT_COMMON_SAMBA
+ POPT_COMMON_CONNECTION
+ { 0, 0, 0, 0 }
+ };
+
+ *lookup = 0;
+
+ load_case_tables();
+
+ setup_logging(argv[0],True);
+
+ pc = poptGetContext("nmblookup", argc, (const char **)argv,
+ long_options, POPT_CONTEXT_KEEP_FIRST);
+
+ poptSetOtherOptionHelp(pc, "<NODE> ...");
+
+ while ((opt = poptGetNextOpt(pc)) != -1) {
+ switch (opt) {
+ case 'f':
+ give_flags = true;
+ break;
+ case 'M':
+ find_master = true;
+ break;
+ case 'R':
+ recursion_desired = true;
+ break;
+ case 'S':
+ find_status = true;
+ break;
+ case 'r':
+ RootPort = true;
+ break;
+ case 'A':
+ lookup_by_ip = true;
+ break;
+ case 'B':
+ if (interpret_string_addr(&bcast_addr,
+ poptGetOptArg(pc),
+ NI_NUMERICHOST)) {
+ got_bcast = True;
+ use_bcast = True;
+ }
+ break;
+ case 'U':
+ if (interpret_string_addr(&bcast_addr,
+ poptGetOptArg(pc),
+ 0)) {
+ got_bcast = True;
+ use_bcast = False;
+ }
+ break;
+ case 'T':
+ translate_addresses = !translate_addresses;
+ break;
+ }
+ }
+
+ poptGetArg(pc); /* Remove argv[0] */
+
+ if(!poptPeekArg(pc)) {
+ poptPrintUsage(pc, stderr, 0);
+ exit(1);
+ }
+
+ if (!lp_load(get_dyn_CONFIGFILE(),True,False,False,True)) {
+ fprintf(stderr, "Can't load %s - run testparm to debug it\n",
+ get_dyn_CONFIGFILE());
+ }
+
+ load_interfaces();
+ if (!open_sockets()) {
+ return(1);
+ }
+
+ while(poptPeekArg(pc)) {
+ char *p;
+ struct in_addr ip;
+
+ fstrcpy(lookup,poptGetArg(pc));
+
+ if(lookup_by_ip) {
+ struct sockaddr_storage ss;
+ (void)interpret_addr2(&ip, lookup);
+ in_addr_to_sockaddr_storage(&ss, ip);
+ fstrcpy(lookup,"*");
+ do_node_status(ServerFD, lookup, lookup_type, &ss);
+ continue;
+ }
+
+ if (find_master) {
+ if (*lookup == '-') {
+ fstrcpy(lookup,"\01\02__MSBROWSE__\02");
+ lookup_type = 1;
+ } else {
+ lookup_type = 0x1d;
+ }
+ }
+
+ p = strchr_m(lookup,'#');
+ if (p) {
+ *p = '\0';
+ sscanf(++p,"%x",&lookup_type);
+ }
+
+ if (!query_one(lookup, lookup_type)) {
+ d_printf( "name_query failed to find name %s", lookup );
+ if( 0 != lookup_type ) {
+ d_printf( "#%02x", lookup_type );
+ }
+ d_printf( "\n" );
+ }
+ }
+
+ poptFreeContext(pc);
+ TALLOC_FREE(frame);
+ return(0);
+}
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