/* 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 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" ); 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_inti() 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 DC 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 DC 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=opt_target_workgroup; char *sitename = NULL; int count, i; 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, False))) { 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_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; } /* 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}, {"MASTER", net_lookup_master}, {"KDC", net_lookup_kdc}, {"NAME", net_lookup_name}, {"SID", net_lookup_sid}, {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); }