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b787b6e1bd
metze Autobuild-User: Stefan Metzmacher <metze@samba.org> Autobuild-Date: Mon Oct 10 23:23:07 CEST 2011 on sn-devel-104
291 lines
7.9 KiB
C
291 lines
7.9 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Brad Henry 2005
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "libnet/libnet.h"
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#include "libcli/cldap/cldap.h"
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#include <ldb.h>
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#include <ldb_errors.h>
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#include "libcli/resolve/resolve.h"
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#include "param/param.h"
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#include "lib/tsocket/tsocket.h"
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/**
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* 1. Setup a CLDAP socket.
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* 2. Lookup the default Site-Name.
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*/
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NTSTATUS libnet_FindSite(TALLOC_CTX *ctx, struct libnet_context *lctx, struct libnet_JoinSite *r)
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{
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NTSTATUS status;
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TALLOC_CTX *tmp_ctx;
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char *site_name_str;
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char *config_dn_str;
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char *server_dn_str;
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struct cldap_socket *cldap = NULL;
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struct cldap_netlogon search;
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int ret;
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struct tsocket_address *dest_address;
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tmp_ctx = talloc_named(ctx, 0, "libnet_FindSite temp context");
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if (!tmp_ctx) {
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r->out.error_string = NULL;
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return NT_STATUS_NO_MEMORY;
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}
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/* Resolve the site name. */
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ZERO_STRUCT(search);
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search.in.dest_address = NULL;
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search.in.dest_port = 0;
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search.in.acct_control = -1;
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search.in.version = NETLOGON_NT_VERSION_5 | NETLOGON_NT_VERSION_5EX;
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search.in.map_response = true;
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ret = tsocket_address_inet_from_strings(tmp_ctx, "ip",
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r->in.dest_address,
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r->in.cldap_port,
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&dest_address);
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if (ret != 0) {
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r->out.error_string = NULL;
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status = map_nt_error_from_unix_common(errno);
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return status;
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}
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/* we want to use non async calls, so we're not passing an event context */
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status = cldap_socket_init(tmp_ctx, NULL, dest_address, &cldap);
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if (!NT_STATUS_IS_OK(status)) {
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talloc_free(tmp_ctx);
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r->out.error_string = NULL;
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return status;
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}
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status = cldap_netlogon(cldap, tmp_ctx, &search);
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if (!NT_STATUS_IS_OK(status)
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|| !search.out.netlogon.data.nt5_ex.client_site) {
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/*
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If cldap_netlogon() returns in error,
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default to using Default-First-Site-Name.
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*/
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site_name_str = talloc_asprintf(tmp_ctx, "%s",
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"Default-First-Site-Name");
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if (!site_name_str) {
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r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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} else {
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site_name_str = talloc_asprintf(tmp_ctx, "%s",
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search.out.netlogon.data.nt5_ex.client_site);
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if (!site_name_str) {
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r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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}
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/* Generate the CN=Configuration,... DN. */
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/* TODO: look it up! */
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config_dn_str = talloc_asprintf(tmp_ctx, "CN=Configuration,%s", r->in.domain_dn_str);
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if (!config_dn_str) {
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r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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/* Generate the CN=Servers,... DN. */
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server_dn_str = talloc_asprintf(tmp_ctx, "CN=%s,CN=Servers,CN=%s,CN=Sites,%s",
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r->in.netbios_name, site_name_str, config_dn_str);
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if (!server_dn_str) {
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r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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r->out.site_name_str = site_name_str;
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talloc_steal(r, site_name_str);
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r->out.config_dn_str = config_dn_str;
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talloc_steal(r, config_dn_str);
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r->out.server_dn_str = server_dn_str;
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talloc_steal(r, server_dn_str);
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talloc_free(tmp_ctx);
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return NT_STATUS_OK;
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}
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/*
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* find out Site specific stuff:
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* 1. Lookup the Site name.
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* 2. Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
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* TODO: 3.) use DsAddEntry() to create CN=NTDS Settings,CN=<netbios name>,CN=Servers,CN=<site name>,...
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*/
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NTSTATUS libnet_JoinSite(struct libnet_context *ctx,
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struct ldb_context *remote_ldb,
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struct libnet_JoinDomain *libnet_r)
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{
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NTSTATUS status;
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TALLOC_CTX *tmp_ctx;
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struct libnet_JoinSite *r;
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struct ldb_dn *server_dn;
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struct ldb_message *msg;
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int rtn;
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const char *server_dn_str;
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const char *config_dn_str;
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struct nbt_name name;
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const char *dest_addr = NULL;
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tmp_ctx = talloc_named(libnet_r, 0, "libnet_JoinSite temp context");
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if (!tmp_ctx) {
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libnet_r->out.error_string = NULL;
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return NT_STATUS_NO_MEMORY;
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}
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r = talloc(tmp_ctx, struct libnet_JoinSite);
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if (!r) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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make_nbt_name_client(&name, libnet_r->out.samr_binding->host);
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status = resolve_name_ex(lpcfg_resolve_context(ctx->lp_ctx),
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0, 0,
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&name, r, &dest_addr, ctx->event_ctx);
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if (!NT_STATUS_IS_OK(status)) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return status;
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}
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/* Resolve the site name and AD DN's. */
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r->in.dest_address = dest_addr;
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r->in.netbios_name = libnet_r->in.netbios_name;
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r->in.domain_dn_str = libnet_r->out.domain_dn_str;
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r->in.cldap_port = lpcfg_cldap_port(ctx->lp_ctx);
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status = libnet_FindSite(tmp_ctx, ctx, r);
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if (!NT_STATUS_IS_OK(status)) {
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libnet_r->out.error_string =
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talloc_steal(libnet_r, r->out.error_string);
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talloc_free(tmp_ctx);
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return status;
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}
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config_dn_str = r->out.config_dn_str;
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server_dn_str = r->out.server_dn_str;
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/*
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Add entry CN=<netbios name>,CN=Servers,CN=<site name>,CN=Sites,CN=Configuration,<domain dn>.
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*/
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msg = ldb_msg_new(tmp_ctx);
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if (!msg) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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rtn = ldb_msg_add_string(msg, "objectClass", "server");
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if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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rtn = ldb_msg_add_string(msg, "systemFlags", "50000000");
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if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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rtn = ldb_msg_add_string(msg, "serverReference", libnet_r->out.account_dn_str);
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if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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server_dn = ldb_dn_new(tmp_ctx, remote_ldb, server_dn_str);
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if ( ! ldb_dn_validate(server_dn)) {
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libnet_r->out.error_string = talloc_asprintf(libnet_r,
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"Invalid server dn: %s",
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server_dn_str);
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talloc_free(tmp_ctx);
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return NT_STATUS_UNSUCCESSFUL;
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}
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msg->dn = server_dn;
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rtn = ldb_add(remote_ldb, msg);
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if (rtn == LDB_ERR_ENTRY_ALREADY_EXISTS) {
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unsigned int i;
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/* make a 'modify' msg, and only for serverReference */
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msg = ldb_msg_new(tmp_ctx);
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if (!msg) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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msg->dn = server_dn;
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rtn = ldb_msg_add_string(msg, "serverReference",libnet_r->out.account_dn_str);
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if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string = NULL;
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talloc_free(tmp_ctx);
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return NT_STATUS_NO_MEMORY;
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}
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/* mark all the message elements (should be just one)
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as LDB_FLAG_MOD_REPLACE */
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for (i=0;i<msg->num_elements;i++) {
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msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
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}
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rtn = ldb_modify(remote_ldb, msg);
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if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string
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= talloc_asprintf(libnet_r,
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"Failed to modify server entry %s: %s: %d",
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server_dn_str,
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ldb_errstring(remote_ldb), rtn);
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talloc_free(tmp_ctx);
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return NT_STATUS_INTERNAL_DB_CORRUPTION;
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}
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} else if (rtn != LDB_SUCCESS) {
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libnet_r->out.error_string
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= talloc_asprintf(libnet_r,
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"Failed to add server entry %s: %s: %d",
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server_dn_str, ldb_errstring(remote_ldb),
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rtn);
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talloc_free(tmp_ctx);
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return NT_STATUS_INTERNAL_DB_CORRUPTION;
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}
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DEBUG(0, ("We still need to perform a DsAddEntry() so that we can create the CN=NTDS Settings container.\n"));
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/* Store the server DN in libnet_r */
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libnet_r->out.server_dn_str = server_dn_str;
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talloc_steal(libnet_r, server_dn_str);
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talloc_free(tmp_ctx);
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return NT_STATUS_OK;
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}
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