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/*
Unix SMB/CIFS implementation.
NBT client - used to lookup netbios names
Copyright (C) Andrew Tridgell 1994-2005
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"
#include "lib/cmdline/popt_common.h"
#include "lib/socket/socket.h"
#include "system/network.h"
#include "system/locale.h"
#include "lib/socket/netif.h"
#include "librpc/gen_ndr/nbt.h"
#include "libcli/nbt/libnbt.h"
#include "param/param.h"
/* command line options */
static struct {
const char *broadcast_address;
const char *unicast_address;
bool find_master;
bool wins_lookup;
bool node_status;
bool root_port;
bool lookup_by_ip;
bool case_sensitive;
} options;
/*
clean any binary from a node name
*/
static const char *clean_name(TALLOC_CTX *mem_ctx, const char *name)
{
char *ret = talloc_strdup(mem_ctx, name);
int i;
for (i=0;ret[i];i++) {
if (!isprint((unsigned char)ret[i])) ret[i] = '.';
}
return ret;
}
/*
turn a node status flags field into a string
*/
static char *node_status_flags(TALLOC_CTX *mem_ctx, uint16_t flags)
{
char *ret;
const char *group = " ";
const char *type = "B";
if (flags & NBT_NM_GROUP) {
group = "<GROUP>";
}
switch (flags & NBT_NM_OWNER_TYPE) {
case NBT_NODE_B:
type = "B";
break;
case NBT_NODE_P:
type = "P";
break;
case NBT_NODE_M:
type = "M";
break;
case NBT_NODE_H:
type = "H";
break;
}
ret = talloc_asprintf(mem_ctx, "%s %s", group, type);
if (flags & NBT_NM_DEREGISTER) {
ret = talloc_asprintf_append_buffer(ret, " <DEREGISTERING>");
}
if (flags & NBT_NM_CONFLICT) {
ret = talloc_asprintf_append_buffer(ret, " <CONFLICT>");
}
if (flags & NBT_NM_ACTIVE) {
ret = talloc_asprintf_append_buffer(ret, " <ACTIVE>");
}
if (flags & NBT_NM_PERMANENT) {
ret = talloc_asprintf_append_buffer(ret, " <PERMANENT>");
}
return ret;
}
/* do a single node status */
static bool do_node_status(struct nbt_name_socket *nbtsock,
const char *addr)
{
struct nbt_name_status io;
NTSTATUS status;
io.in.name.name = "*";
io.in.name.type = NBT_NAME_CLIENT;
io.in.name.scope = NULL;
io.in.dest_addr = addr;
io.in.timeout = 1;
io.in.retries = 2;
status = nbt_name_status(nbtsock, nbtsock, &io);
if (NT_STATUS_IS_OK(status)) {
int i;
printf("Node status reply from %s\n",
io.out.reply_from);
for (i=0;i<io.out.status.num_names;i++) {
d_printf("\t%-16s <%02x> %s\n",
clean_name(nbtsock, io.out.status.names[i].name),
io.out.status.names[i].type,
node_status_flags(nbtsock, io.out.status.names[i].nb_flags));
}
printf("\n\tMAC Address = %02X-%02X-%02X-%02X-%02X-%02X\n",
io.out.status.statistics.unit_id[0],
io.out.status.statistics.unit_id[1],
io.out.status.statistics.unit_id[2],
io.out.status.statistics.unit_id[3],
io.out.status.statistics.unit_id[4],
io.out.status.statistics.unit_id[5]);
return true;
}
return false;
}
/* do a single node query */
static NTSTATUS do_node_query(struct nbt_name_socket *nbtsock,
const char *addr,
uint16_t port,
const char *node_name,
enum nbt_name_type node_type,
bool broadcast)
{
struct nbt_name_query io;
NTSTATUS status;
int i;
io.in.name.name = node_name;
io.in.name.type = node_type;
io.in.name.scope = NULL;
io.in.dest_addr = addr;
io.in.dest_port = port;
io.in.broadcast = broadcast;
io.in.wins_lookup = options.wins_lookup;
io.in.timeout = 1;
io.in.retries = 2;
status = nbt_name_query(nbtsock, nbtsock, &io);
NT_STATUS_NOT_OK_RETURN(status);
for (i=0;i<io.out.num_addrs;i++) {
printf("%s %s<%02x>\n",
io.out.reply_addrs[i],
io.out.name.name,
io.out.name.type);
}
if (options.node_status && io.out.num_addrs > 0) {
do_node_status(nbtsock, io.out.reply_addrs[0]);
}
return status;
}
static bool process_one(const char *name, int nbt_port)
{
TALLOC_CTX *tmp_ctx = talloc_new(NULL);
enum nbt_name_type node_type = NBT_NAME_CLIENT;
char *node_name, *p;
struct socket_address *all_zero_addr;
struct nbt_name_socket *nbtsock;
NTSTATUS status = NT_STATUS_OK;
bool ret = true;
if (!options.case_sensitive) {
name = strupper_talloc(tmp_ctx, name);
}
if (options.find_master) {
node_type = NBT_NAME_MASTER;
if (*name == '-' || *name == '_') {
name = "\01\02__MSBROWSE__\02";
node_type = NBT_NAME_MS;
}
}
p = strchr(name, '#');
if (p) {
node_name = talloc_strndup(tmp_ctx, name, PTR_DIFF(p,name));
node_type = (enum nbt_name_type)strtol(p+1, NULL, 16);
} else {
node_name = talloc_strdup(tmp_ctx, name);
}
nbtsock = nbt_name_socket_init(tmp_ctx, NULL);
if (options.root_port) {
all_zero_addr = socket_address_from_strings(tmp_ctx, nbtsock->sock->backend_name,
"0.0.0.0", NBT_NAME_SERVICE_PORT);
if (!all_zero_addr) {
talloc_free(tmp_ctx);
return false;
}
status = socket_listen(nbtsock->sock, all_zero_addr, 0, 0);
if (!NT_STATUS_IS_OK(status)) {
printf("Failed to bind to local port 137 - %s\n", nt_errstr(status));
talloc_free(tmp_ctx);
return false;
}
}
if (options.lookup_by_ip) {
ret = do_node_status(nbtsock, name);
talloc_free(tmp_ctx);
return ret;
}
if (options.broadcast_address) {
status = do_node_query(nbtsock, options.broadcast_address, nbt_port,
node_name, node_type, true);
} else if (options.unicast_address) {
status = do_node_query(nbtsock, options.unicast_address,
nbt_port, node_name, node_type, false);
} else {
int i, num_interfaces = iface_count(global_loadparm);
for (i=0;i<num_interfaces;i++) {
const char *bcast = iface_n_bcast(global_loadparm, i);
if (bcast == NULL) continue;
status = do_node_query(nbtsock, bcast, nbt_port,
node_name, node_type, true);
if (NT_STATUS_IS_OK(status)) break;
}
}
if (!NT_STATUS_IS_OK(status)) {
printf("Lookup failed - %s\n", nt_errstr(status));
ret = false;
}
talloc_free(tmp_ctx);
return ret;
}
/*
main program
*/
int main(int argc, const char *argv[])
{
bool ret = true;
poptContext pc;
int opt;
enum {
OPT_BROADCAST_ADDRESS = 1000,
OPT_UNICAST_ADDRESS,
OPT_FIND_MASTER,
OPT_WINS_LOOKUP,
OPT_NODE_STATUS,
OPT_ROOT_PORT,
OPT_LOOKUP_BY_IP,
OPT_CASE_SENSITIVE
};
struct poptOption long_options[] = {
POPT_AUTOHELP
{ "broadcast", 'B', POPT_ARG_STRING, NULL, OPT_BROADCAST_ADDRESS,
"Specify address to use for broadcasts", "BROADCAST-ADDRESS" },
{ "unicast", 'U', POPT_ARG_STRING, NULL, OPT_UNICAST_ADDRESS,
"Specify address to use for unicast", NULL },
{ "master-browser", 'M', POPT_ARG_NONE, NULL, OPT_FIND_MASTER,
"Search for a master browser", NULL },
{ "wins", 'W', POPT_ARG_NONE, NULL, OPT_WINS_LOOKUP,
"Do a WINS lookup", NULL },
{ "status", 'S', POPT_ARG_NONE, NULL, OPT_NODE_STATUS,
"Lookup node status as well", NULL },
{ "root-port", 'r', POPT_ARG_NONE, NULL, OPT_ROOT_PORT,
"Use root port 137 (Win95 only replies to this)", NULL },
{ "lookup-by-ip", 'A', POPT_ARG_NONE, NULL, OPT_LOOKUP_BY_IP,
"Do a node status on <name> as an IP Address", NULL },
{ "case-sensitive", 0, POPT_ARG_NONE, NULL, OPT_CASE_SENSITIVE,
"Don't uppercase the name before sending", NULL },
POPT_COMMON_SAMBA
{ 0, 0, 0, 0 }
};
pc = poptGetContext("nmblookup", argc, argv, long_options,
POPT_CONTEXT_KEEP_FIRST);
poptSetOtherOptionHelp(pc, "<NODE> ...");
while ((opt = poptGetNextOpt(pc)) != -1) {
switch(opt) {
case OPT_BROADCAST_ADDRESS:
options.broadcast_address = poptGetOptArg(pc);
break;
case OPT_UNICAST_ADDRESS:
options.unicast_address = poptGetOptArg(pc);
break;
case OPT_FIND_MASTER:
options.find_master = true;
break;
case OPT_WINS_LOOKUP:
options.wins_lookup = true;
break;
case OPT_NODE_STATUS:
options.node_status = true;
break;
case OPT_ROOT_PORT:
options.root_port = true;
break;
case OPT_LOOKUP_BY_IP:
options.lookup_by_ip = true;
break;
case OPT_CASE_SENSITIVE:
options.case_sensitive = true;
break;
}
}
/* swallow argv[0] */
poptGetArg(pc);
if(!poptPeekArg(pc)) {
poptPrintUsage(pc, stderr, 0);
exit(1);
}
while (poptPeekArg(pc)) {
const char *name = poptGetArg(pc);
ret &= process_one(name, lp_nbt_port(global_loadparm));
}
poptFreeContext(pc);
if (!ret) {
return 1;
}
return 0;
}
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