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Diffstat (limited to 'source3/utils/net_lookup.c')
| -rw-r--r-- | source3/utils/net_lookup.c | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/source3/utils/net_lookup.c b/source3/utils/net_lookup.c new file mode 100644 index 0000000000..8b9ddb62ba --- /dev/null +++ b/source3/utils/net_lookup.c @@ -0,0 +1,447 @@ +/* + 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(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]\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)) { + /* 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, int numdcs ) +{ + struct sockaddr_storage ss; + int i; + + for ( i=0; i<numdcs; i++ ) { + if (resolve_name(dclist[i].hostname, &ss, 0x20) ) { + char addr[INET6_ADDRSTRLEN]; + print_sockaddr(addr, sizeof(addr), &ss); +#ifdef HAVE_IPV6 + if (ss.ss_family == AF_INET6) { + d_printf("[%s]:%d\n", addr, dclist[i].port); + } +#endif + if (ss.ss_family == AF_INET) { + d_printf("%s:%d\n", addr, dclist[i].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; + int numdcs = 0; + char *sitename; + TALLOC_CTX *ctx; + NTSTATUS status; + int ret; + char h_name[MAX_DNS_NAME_LENGTH]; + + if (argc > 0) + domain = argv[0]; + else + domain = c->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, &ss)) { + TALLOC_FREE( ctx ); + SAFE_FREE(sitename); + 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 ); + SAFE_FREE(sitename); + return -1; + } + + DEBUG(9, ("Found PDC with DNS name %s\n", h_name)); + domain = strchr(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(struct net_context *c, int argc, const char **argv) +{ + struct ip_service *ip_list; + struct sockaddr_storage ss; + char *pdc_str = NULL; + const char *domain = NULL; + char *sitename = NULL; + int count, i; + char addr[INET6_ADDRSTRLEN]; + bool sec_ads = (lp_security() == SEC_ADS); + + 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); + asprintf(&pdc_str, "%s", 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++) { + print_sockaddr(addr, sizeof(addr), &ip_list[i].ss); + if (!strequal(pdc_str, addr)) + d_printf("%s\n", addr); + } + 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); + asprintf(&pdc_str, "%s", addr); + 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 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(struct net_context *c, 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(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", sid_string_tos(&sid), + 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; + 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(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", sid_string_tos(&sid), + 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("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 = argv[2]; + } + + 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)); + 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[] = { + {"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(c, argc, argv); + } + for (i=0; table[i].funcname; i++) { + if (StrCaseCmp(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); +} |