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-rw-r--r--source3/utils/net_lookup.c542
1 files changed, 542 insertions, 0 deletions
diff --git a/source3/utils/net_lookup.c b/source3/utils/net_lookup.c
new file mode 100644
index 0000000..570135a
--- /dev/null
+++ b/source3/utils/net_lookup.c
@@ -0,0 +1,542 @@
+/*
+ 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"
+#include "libsmb/namequery.h"
+#include "libads/sitename_cache.h"
+#include "lib/addns/dnsquery_srv.h"
+#include "../librpc/gen_ndr/ndr_netlogon.h"
+#include "smb_krb5.h"
+#include "../libcli/security/security.h"
+#include "passdb/lookup_sid.h"
+#include "libsmb/dsgetdcname.h"
+
+int net_lookup_usage(struct net_context *c, int argc, const char **argv)
+{
+ d_printf(_(
+" net lookup [host] HOSTNAME[#<type>]\n\tgives IP for a hostname\n\n"
+" net lookup ldap [domain] [sitename]\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(struct net_context *c, int argc, const char **argv)
+{
+ struct sockaddr_storage ss;
+ int name_type = 0x20;
+ char addr[INET6_ADDRSTRLEN];
+ const char *name = argv[0];
+ char *p;
+
+ if (argc == 0)
+ return net_lookup_usage(c, argc, argv);
+
+ p = strchr_m(name,'#');
+ if (p) {
+ *p = '\0';
+ sscanf(++p,"%x",&name_type);
+ }
+
+ if (!resolve_name(name, &ss, name_type, false)) {
+ /* 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;
+ }
+
+ print_sockaddr(addr, sizeof(addr), &ss);
+ d_printf("%s\n", addr);
+ return 0;
+}
+
+#ifdef HAVE_ADS
+static void print_ldap_srvlist(struct dns_rr_srv *dclist, size_t numdcs)
+{
+ size_t i;
+
+ for ( i=0; i<numdcs; i++ ) {
+ struct dns_rr_srv *dc = &dclist[i];
+ size_t j;
+
+ for (j=0; j<dc->num_ips; j++) {
+ struct sockaddr_storage *ss = &dc->ss_s[j];
+ char addr[INET6_ADDRSTRLEN];
+
+ print_sockaddr(addr, sizeof(addr), ss);
+#ifdef HAVE_IPV6
+ if (ss->ss_family == AF_INET6) {
+ d_printf("[%s]:%"PRIu16"\n", addr, dc->port);
+ }
+#endif
+ if (ss->ss_family == AF_INET) {
+ d_printf("%s:%"PRIu16"\n", addr, dc->port);
+ }
+ }
+ }
+}
+#endif
+
+static int net_lookup_ldap(struct net_context *c, int argc, const char **argv)
+{
+#ifdef HAVE_ADS
+ const char *domain;
+ struct sockaddr_storage ss;
+ struct dns_rr_srv *dcs = NULL;
+ size_t numdcs = 0;
+ const char *sitename = NULL;
+ TALLOC_CTX *ctx;
+ NTSTATUS status;
+ int ret;
+ char h_name[MAX_DNS_NAME_LENGTH];
+ char *query = NULL;
+
+ if (argc > 0)
+ domain = argv[0];
+ else
+ domain = c->opt_target_workgroup;
+
+ if (argc > 1) {
+ sitename = argv[1];
+ }
+
+ if ( (ctx = talloc_init("net_lookup_ldap")) == NULL ) {
+ d_fprintf(stderr,"net_lookup_ldap: talloc_init() %s!\n",
+ _("failed"));
+ return -1;
+ }
+
+ if (sitename == NULL) {
+ sitename = sitename_fetch(ctx, domain);
+ }
+ query = ads_dns_query_string_dcs(ctx, domain);
+
+ DEBUG(9, ("Lookup up ldap for domain %s\n", domain));
+
+ status = ads_dns_query_srv(
+ ctx,
+ lp_get_async_dns_timeout(),
+ sitename,
+ query,
+ &dcs,
+ &numdcs);
+ if ( NT_STATUS_IS_OK(status) && numdcs ) {
+ print_ldap_srvlist(dcs, numdcs);
+ TALLOC_FREE( ctx );
+ return 0;
+ }
+
+ DEBUG(9, ("Looking up PDC for domain %s\n", domain));
+ if (!get_pdc_ip(domain, &ss)) {
+ TALLOC_FREE( ctx );
+ return -1;
+ }
+
+ ret = sys_getnameinfo((struct sockaddr *)&ss,
+ sizeof(struct sockaddr_storage),
+ h_name, sizeof(h_name),
+ NULL, 0,
+ NI_NAMEREQD);
+
+ if (ret) {
+ TALLOC_FREE( ctx );
+ return -1;
+ }
+
+ DEBUG(9, ("Found PDC with DNS name %s\n", h_name));
+ domain = strchr(h_name, '.');
+ if (!domain) {
+ TALLOC_FREE( ctx );
+ return -1;
+ }
+ domain++;
+
+ DEBUG(9, ("Looking up ldap for domain %s\n", domain));
+
+ status = ads_dns_query_srv(
+ ctx,
+ lp_get_async_dns_timeout(),
+ sitename,
+ query,
+ &dcs,
+ &numdcs);
+ if ( NT_STATUS_IS_OK(status) && numdcs ) {
+ print_ldap_srvlist(dcs, numdcs);
+ TALLOC_FREE( ctx );
+ return 0;
+ }
+
+ TALLOC_FREE( ctx );
+
+ return -1;
+#endif
+ DEBUG(1,("No ADS support\n"));
+ return -1;
+}
+
+static int net_lookup_dc(struct net_context *c, int argc, const char **argv)
+{
+ struct samba_sockaddr *sa_list = NULL;
+ struct sockaddr_storage ss;
+ char *pdc_str = NULL;
+ const char *domain = NULL;
+ char *sitename = NULL;
+ size_t count = 0;
+ size_t i;
+ char addr[INET6_ADDRSTRLEN];
+ bool sec_ads = (lp_security() == SEC_ADS);
+ NTSTATUS status;
+
+ if (sec_ads) {
+ domain = lp_realm();
+ } else {
+ domain = c->opt_target_workgroup;
+ }
+
+ if (argc > 0)
+ domain=argv[0];
+
+ /* first get PDC */
+ if (!get_pdc_ip(domain, &ss))
+ return -1;
+
+ print_sockaddr(addr, sizeof(addr), &ss);
+ if (asprintf(&pdc_str, "%s", addr) == -1) {
+ return -1;
+ }
+ d_printf("%s\n", pdc_str);
+
+ sitename = sitename_fetch(talloc_tos(), domain);
+ status = get_sorted_dc_list(talloc_tos(),
+ domain,
+ sitename,
+ &sa_list,
+ &count,
+ sec_ads);
+ if (!NT_STATUS_IS_OK(status)) {
+ SAFE_FREE(pdc_str);
+ TALLOC_FREE(sitename);
+ return 0;
+ }
+ TALLOC_FREE(sitename);
+ for (i=0;i<count;i++) {
+ print_sockaddr(addr, sizeof(addr), &sa_list[i].u.ss);
+ if (!strequal(pdc_str, addr))
+ d_printf("%s\n", addr);
+ }
+ TALLOC_FREE(sa_list);
+ SAFE_FREE(pdc_str);
+ return 0;
+}
+
+static int net_lookup_pdc(struct net_context *c, int argc, const char **argv)
+{
+ struct sockaddr_storage ss;
+ char *pdc_str = NULL;
+ const char *domain;
+ char addr[INET6_ADDRSTRLEN];
+
+ if (lp_security() == SEC_ADS) {
+ domain = lp_realm();
+ } else {
+ domain = c->opt_target_workgroup;
+ }
+
+ if (argc > 0)
+ domain=argv[0];
+
+ /* first get PDC */
+ if (!get_pdc_ip(domain, &ss))
+ return -1;
+
+ print_sockaddr(addr, sizeof(addr), &ss);
+ if (asprintf(&pdc_str, "%s", addr) == -1) {
+ return -1;
+ }
+ d_printf("%s\n", pdc_str);
+ SAFE_FREE(pdc_str);
+ return 0;
+}
+
+
+static int net_lookup_master(struct net_context *c, int argc, const char **argv)
+{
+ struct sockaddr_storage master_ss;
+ const char *domain = c->opt_target_workgroup;
+ char addr[INET6_ADDRSTRLEN];
+
+ if (argc > 0)
+ domain=argv[0];
+
+ if (!find_master_ip(domain, &master_ss))
+ return -1;
+ print_sockaddr(addr, sizeof(addr), &master_ss);
+ d_printf("%s\n", addr);
+ return 0;
+}
+
+static int net_lookup_kdc(struct net_context *c, int argc, const char **argv)
+{
+#ifdef HAVE_KRB5
+ krb5_error_code rc;
+ krb5_context ctx;
+ struct samba_sockaddr *kdcs = NULL;
+ const char *realm;
+ char **get_host_realms = NULL;
+ size_t num_kdcs = 0;
+ size_t i;
+ NTSTATUS status;
+
+ rc = smb_krb5_init_context_common(&ctx);
+ if (rc) {
+ DBG_ERR("kerberos init context failed (%s)\n",
+ error_message(rc));
+ return -1;
+ }
+
+ if (argc > 0) {
+ realm = argv[0];
+ } else if (lp_realm() && *lp_realm()) {
+ realm = lp_realm();
+ } else {
+ rc = krb5_get_host_realm(ctx, NULL, &get_host_realms);
+ if (rc) {
+ DEBUG(1,("krb5_gethost_realm failed (%s)\n",
+ error_message(rc)));
+ krb5_free_context(ctx);
+ return -1;
+ }
+ realm = (const char *) *get_host_realms;
+ }
+
+ status = get_kdc_list(talloc_tos(),
+ realm,
+ NULL,
+ &kdcs,
+ &num_kdcs);
+ if (!NT_STATUS_IS_OK(status)) {
+ DBG_WARNING("get_kdc_list failed (%s)\n",
+ nt_errstr(status));
+ krb5_free_host_realm(ctx, get_host_realms);
+ krb5_free_context(ctx);
+ return -1;
+ }
+
+ for (i = 0; i < num_kdcs; i++) {
+ char addr[INET6_ADDRSTRLEN];
+
+ print_sockaddr(addr, sizeof(addr), &kdcs[i].u.ss);
+
+ d_printf("%s:88\n", addr);
+ }
+
+ krb5_free_host_realm(ctx, get_host_realms);
+ krb5_free_context(ctx);
+ TALLOC_FREE(kdcs);
+ return 0;
+#endif
+ DEBUG(1, ("No kerberos support\n"));
+ return -1;
+}
+
+static int net_lookup_name(struct net_context *c, int argc, const char **argv)
+{
+ const char *dom, *name;
+ struct dom_sid sid;
+ struct dom_sid_buf buf;
+ enum lsa_SidType type;
+
+ if (argc != 1) {
+ d_printf("%s\n%s",
+ _("Usage:"),
+ _(" net lookup name <name>\n"));
+ return -1;
+ }
+
+ if (!lookup_name(talloc_tos(), 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", dom_sid_str_buf(&sid, &buf),
+ type, sid_type_lookup(type), dom, name);
+ return 0;
+}
+
+static int net_lookup_sid(struct net_context *c, int argc, const char **argv)
+{
+ const char *dom, *name;
+ struct dom_sid sid;
+ struct dom_sid_buf buf;
+ enum lsa_SidType type;
+
+ if (argc != 1) {
+ d_printf("%s\n%s",
+ _("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(talloc_tos(), &sid,
+ &dom, &name, &type)) {
+ d_printf(_("Could not lookup name %s\n"), argv[0]);
+ return -1;
+ }
+
+ d_printf("%s %d (%s) %s\\%s\n", dom_sid_str_buf(&sid, &buf),
+ type, sid_type_lookup(type), dom, name);
+ return 0;
+}
+
+static int net_lookup_dsgetdcname(struct net_context *c, int argc, const char **argv)
+{
+ NTSTATUS status;
+ const char *domain_name = NULL;
+ const char *site_name = NULL;
+ uint32_t flags = 0;
+ struct netr_DsRGetDCNameInfo *info = NULL;
+ TALLOC_CTX *mem_ctx;
+ char *s = NULL;
+
+ if (argc < 1 || argc > 3) {
+ d_printf("%s\n%s",
+ _("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 == 0) {
+ flags = DS_DIRECTORY_SERVICE_REQUIRED;
+ }
+
+ if (argc == 3) {
+ site_name = argv[2];
+ }
+
+ if (!c->msg_ctx) {
+ d_fprintf(stderr, _("Could not initialise message context. "
+ "Try running as root\n"));
+ return -1;
+ }
+
+ status = dsgetdcname(mem_ctx, c->msg_ctx, domain_name, NULL, site_name,
+ flags, &info);
+ if (!NT_STATUS_IS_OK(status)) {
+ d_printf(_("failed with: %s\n"), nt_errstr(status));
+ TALLOC_FREE(mem_ctx);
+ return -1;
+ }
+
+ s = NDR_PRINT_STRUCT_STRING(mem_ctx, netr_DsRGetDCNameInfo, info);
+ printf("%s\n", s);
+ TALLOC_FREE(s);
+
+ TALLOC_FREE(mem_ctx);
+ return 0;
+}
+
+
+/* lookup hosts or IP addresses using internal samba lookup fns */
+int net_lookup(struct net_context *c, int argc, const char **argv)
+{
+ int i;
+
+ struct functable table[] = {
+ {
+ .funcname = "HOST",
+ .fn = net_lookup_host,
+ },
+ {
+ .funcname = "LDAP",
+ .fn = net_lookup_ldap,
+ },
+ {
+ .funcname = "DC",
+ .fn = net_lookup_dc,
+ },
+ {
+ .funcname = "PDC",
+ .fn = net_lookup_pdc,
+ },
+ {
+ .funcname = "MASTER",
+ .fn = net_lookup_master,
+ },
+ {
+ .funcname = "KDC",
+ .fn = net_lookup_kdc,
+ },
+ {
+ .funcname = "NAME",
+ .fn = net_lookup_name,
+ },
+ {
+ .funcname = "SID",
+ .fn = net_lookup_sid,
+ },
+ {
+ .funcname = "DSGETDCNAME",
+ .fn = net_lookup_dsgetdcname,
+ },
+ {
+ .funcname = NULL,
+ },
+ };
+
+ if (argc < 1) {
+ d_printf(_("\nUsage: \n"));
+ return net_lookup_usage(c, argc, argv);
+ }
+ for (i=0; table[i].funcname; i++) {
+ if (strcasecmp_m(argv[0], table[i].funcname) == 0)
+ return table[i].fn(c, 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(c, argc, argv);
+}
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