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samba-mirror/source3/utils/net_lookup.c

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/*
Samba Unix/Linux SMB client library
net lookup command
Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
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 "utils/net.h"
int net_lookup_usage(int argc, const char **argv)
{
d_printf(
" net lookup [host] HOSTNAME[#<type>]\n\tgives IP for a hostname\n\n"
" net lookup ldap [domain]\n\tgives IP of domain's ldap server\n\n"
" net lookup kdc [realm]\n\tgives IP of realm's kerberos KDC\n\n"
" net lookup pdc [domain|realm]\n\tgives IP of realm's kerberos KDC\n\n"
" net lookup dc [domain]\n\tgives IP of domains Domain Controllers\n\n"
" net lookup master [domain|wg]\n\tgive IP of master browser\n\n"
" net lookup name [name]\n\tLookup name's sid and type\n\n"
" net lookup sid [sid]\n\tGive sid's name and type\n\n"
" net lookup dsgetdcname [name] [flags] [sitename]\n\n"
);
return -1;
}
/* lookup a hostname giving an IP */
static int net_lookup_host(int argc, const char **argv)
{
struct in_addr ip;
int name_type = 0x20;
const char *name = argv[0];
char *p;
if (argc == 0)
return net_lookup_usage(argc, argv);
p = strchr_m(name,'#');
if (p) {
*p = '\0';
sscanf(++p,"%x",&name_type);
}
if (!resolve_name(name, &ip, name_type)) {
/* we deliberately use DEBUG() here to send it to stderr
so scripts aren't mucked up */
DEBUG(0,("Didn't find %s#%02x\n", name, name_type));
return -1;
}
d_printf("%s\n", inet_ntoa(ip));
return 0;
}
#ifdef HAVE_ADS
static void print_ldap_srvlist(struct dns_rr_srv *dclist, int numdcs )
{
struct in_addr ip;
int i;
for ( i=0; i<numdcs; i++ ) {
if ( resolve_name(dclist[i].hostname, &ip, 0x20) ) {
d_printf("%s:%d\n", inet_ntoa(ip), dclist[i].port);
}
}
}
#endif
static int net_lookup_ldap(int argc, const char **argv)
{
#ifdef HAVE_ADS
const char *domain;
struct in_addr addr;
struct hostent *hostent;
struct dns_rr_srv *dcs = NULL;
int numdcs = 0;
char *sitename;
TALLOC_CTX *ctx;
NTSTATUS status;
if (argc > 0)
domain = argv[0];
else
domain = opt_target_workgroup;
sitename = sitename_fetch(domain);
if ( (ctx = talloc_init("net_lookup_ldap")) == NULL ) {
d_fprintf(stderr, "net_lookup_ldap: talloc_init() failed!\n");
SAFE_FREE(sitename);
return -1;
}
DEBUG(9, ("Lookup up ldap for domain %s\n", domain));
status = ads_dns_query_dcs( ctx, domain, sitename, &dcs, &numdcs );
if ( NT_STATUS_IS_OK(status) && numdcs ) {
print_ldap_srvlist(dcs, numdcs);
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return 0;
}
DEBUG(9, ("Looking up PDC for domain %s\n", domain));
if (!get_pdc_ip(domain, &addr)) {
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return -1;
}
hostent = gethostbyaddr((char *) &addr.s_addr, sizeof(addr.s_addr),
AF_INET);
if (!hostent) {
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return -1;
}
DEBUG(9, ("Found PDC with DNS name %s\n", hostent->h_name));
domain = strchr(hostent->h_name, '.');
if (!domain) {
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return -1;
}
domain++;
DEBUG(9, ("Looking up ldap for domain %s\n", domain));
status = ads_dns_query_dcs( ctx, domain, sitename, &dcs, &numdcs );
if ( NT_STATUS_IS_OK(status) && numdcs ) {
print_ldap_srvlist(dcs, numdcs);
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return 0;
}
TALLOC_FREE( ctx );
SAFE_FREE(sitename);
return -1;
#endif
DEBUG(1,("No ADS support\n"));
return -1;
}
static int net_lookup_dc(int argc, const char **argv)
{
struct ip_service *ip_list;
struct in_addr addr;
char *pdc_str = NULL;
const char *domain = NULL;
char *sitename = NULL;
int count, i;
BOOL sec_ads = (lp_security() == SEC_ADS);
if (sec_ads) {
domain = lp_realm();
} else {
domain = opt_target_workgroup;
}
if (argc > 0)
domain=argv[0];
/* first get PDC */
if (!get_pdc_ip(domain, &addr))
return -1;
asprintf(&pdc_str, "%s", inet_ntoa(addr));
d_printf("%s\n", pdc_str);
sitename = sitename_fetch(domain);
if (!NT_STATUS_IS_OK(get_sorted_dc_list(domain, sitename, &ip_list, &count, sec_ads))) {
SAFE_FREE(pdc_str);
SAFE_FREE(sitename);
return 0;
}
SAFE_FREE(sitename);
for (i=0;i<count;i++) {
char *dc_str = inet_ntoa(ip_list[i].ip);
if (!strequal(pdc_str, dc_str))
d_printf("%s\n", dc_str);
}
SAFE_FREE(pdc_str);
return 0;
}
static int net_lookup_pdc(int argc, const char **argv)
{
struct in_addr addr;
char *pdc_str = NULL;
const char *domain;
if (lp_security() == SEC_ADS) {
domain = lp_realm();
} else {
domain = opt_target_workgroup;
}
if (argc > 0)
domain=argv[0];
/* first get PDC */
if (!get_pdc_ip(domain, &addr))
return -1;
asprintf(&pdc_str, "%s", inet_ntoa(addr));
d_printf("%s\n", pdc_str);
SAFE_FREE(pdc_str);
return 0;
}
static int net_lookup_master(int argc, const char **argv)
{
struct in_addr master_ip;
const char *domain=opt_target_workgroup;
if (argc > 0)
domain=argv[0];
if (!find_master_ip(domain, &master_ip))
return -1;
d_printf("%s\n", inet_ntoa(master_ip));
return 0;
}
static int net_lookup_kdc(int argc, const char **argv)
{
#ifdef HAVE_KRB5
krb5_error_code rc;
krb5_context ctx;
struct sockaddr_in *addrs;
int num_kdcs,i;
krb5_data realm;
char **realms;
initialize_krb5_error_table();
rc = krb5_init_context(&ctx);
if (rc) {
DEBUG(1,("krb5_init_context failed (%s)\n",
error_message(rc)));
return -1;
}
if (argc>0) {
realm.data = CONST_DISCARD(char *, argv[0]);
realm.length = strlen(argv[0]);
} else if (lp_realm() && *lp_realm()) {
realm.data = lp_realm();
realm.length = strlen((const char *)realm.data);
} else {
rc = krb5_get_host_realm(ctx, NULL, &realms);
if (rc) {
DEBUG(1,("krb5_gethost_realm failed (%s)\n",
error_message(rc)));
return -1;
}
realm.data = (char *) *realms;
realm.length = strlen((const char *)realm.data);
}
rc = smb_krb5_locate_kdc(ctx, &realm, (struct sockaddr **)(void *)&addrs, &num_kdcs, 0);
if (rc) {
DEBUG(1, ("smb_krb5_locate_kdc failed (%s)\n", error_message(rc)));
return -1;
}
for (i=0;i<num_kdcs;i++)
if (addrs[i].sin_family == AF_INET)
d_printf("%s:%hd\n", inet_ntoa(addrs[i].sin_addr),
ntohs(addrs[i].sin_port));
return 0;
#endif
DEBUG(1, ("No kerberos support\n"));
return -1;
}
static int net_lookup_name(int argc, const char **argv)
{
const char *dom, *name;
DOM_SID sid;
enum lsa_SidType type;
if (argc != 1) {
d_printf("usage: net lookup name <name>\n");
return -1;
}
if (!lookup_name(tmp_talloc_ctx(), argv[0], LOOKUP_NAME_ALL,
&dom, &name, &sid, &type)) {
d_printf("Could not lookup name %s\n", argv[0]);
return -1;
}
d_printf("%s %d (%s) %s\\%s\n", sid_string_static(&sid),
type, sid_type_lookup(type), dom, name);
return 0;
}
static int net_lookup_sid(int argc, const char **argv)
{
const char *dom, *name;
DOM_SID sid;
enum lsa_SidType type;
if (argc != 1) {
d_printf("usage: net lookup sid <sid>\n");
return -1;
}
if (!string_to_sid(&sid, argv[0])) {
d_printf("Could not convert %s to SID\n", argv[0]);
return -1;
}
if (!lookup_sid(tmp_talloc_ctx(), &sid,
&dom, &name, &type)) {
d_printf("Could not lookup name %s\n", argv[0]);
return -1;
}
d_printf("%s %d (%s) %s\\%s\n", sid_string_static(&sid),
type, sid_type_lookup(type), dom, name);
return 0;
}
static int net_lookup_dsgetdcname(int argc, const char **argv)
{
NTSTATUS status;
const char *domain_name = NULL;
char *site_name = NULL;
uint32_t flags = 0;
struct DS_DOMAIN_CONTROLLER_INFO *info = NULL;
TALLOC_CTX *mem_ctx;
if (argc < 1 || argc > 3) {
d_printf("usage: net lookup dsgetdcname "
"<name> <flags> <sitename>\n");
return -1;
}
mem_ctx = talloc_init("net_lookup_dsgetdcname");
if (!mem_ctx) {
return -1;
}
domain_name = argv[0];
if (argc >= 2)
sscanf(argv[1], "%x", &flags);
if (!flags) {
flags |= DS_DIRECTORY_SERVICE_REQUIRED;
}
if (argc == 3) {
site_name = SMB_STRDUP(argv[2]);
if (!site_name) {
TALLOC_FREE(mem_ctx);
return -1;
}
}
if (!site_name) {
site_name = sitename_fetch(domain_name);
}
status = DsGetDcName(mem_ctx, NULL, domain_name, NULL, site_name,
flags, &info);
if (!NT_STATUS_IS_OK(status)) {
d_printf("failed with: %s\n", nt_errstr(status));
SAFE_FREE(site_name);
TALLOC_FREE(mem_ctx);
return -1;
}
display_ds_domain_controller_info(mem_ctx, info);
SAFE_FREE(site_name);
TALLOC_FREE(mem_ctx);
return 0;
}
/* lookup hosts or IP addresses using internal samba lookup fns */
int net_lookup(int argc, const char **argv)
{
int i;
struct functable table[] = {
{"HOST", net_lookup_host},
{"LDAP", net_lookup_ldap},
{"DC", net_lookup_dc},
{"PDC", net_lookup_pdc},
{"MASTER", net_lookup_master},
{"KDC", net_lookup_kdc},
{"NAME", net_lookup_name},
{"SID", net_lookup_sid},
{"DSGETDCNAME", net_lookup_dsgetdcname},
{NULL, NULL}
};
if (argc < 1) {
d_printf("\nUsage: \n");
return net_lookup_usage(argc, argv);
}
for (i=0; table[i].funcname; i++) {
if (StrCaseCmp(argv[0], table[i].funcname) == 0)
return table[i].fn(argc-1, argv+1);
}
/* Default to lookup a hostname so 'net lookup foo#1b' can be
used instead of 'net lookup host foo#1b'. The host syntax
is a bit confusing as non #00 names can't really be
considered hosts as such. */
return net_lookup_host(argc, argv);
}