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-rw-r--r--source3/libads/cldap.c296
1 files changed, 67 insertions, 229 deletions
diff --git a/source3/libads/cldap.c b/source3/libads/cldap.c
index d66e35cacb..d941ba60cd 100644
--- a/source3/libads/cldap.c
+++ b/source3/libads/cldap.c
@@ -4,6 +4,7 @@
Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
Copyright (C) 2003 Jim McDonough (jmcd@us.ibm.com)
Copyright (C) 2008 Guenther Deschner (gd@samba.org)
+ Copyright (C) 2009 Stefan Metzmacher (metze@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
@@ -20,221 +21,8 @@
*/
#include "includes.h"
-
-/*
- do a cldap netlogon query
-*/
-static int send_cldap_netlogon(TALLOC_CTX *mem_ctx, int sock, const char *domain,
- const char *hostname, unsigned ntversion)
-{
- ASN1_DATA *data;
- char ntver[4];
-#ifdef CLDAP_USER_QUERY
- char aac[4];
-
- SIVAL(aac, 0, 0x00000180);
-#endif
- SIVAL(ntver, 0, ntversion);
-
- data = asn1_init(mem_ctx);
- if (data == NULL) {
- return -1;
- }
-
- asn1_push_tag(data,ASN1_SEQUENCE(0));
- asn1_write_Integer(data, 4);
- asn1_push_tag(data, ASN1_APPLICATION(3));
- asn1_write_OctetString(data, NULL, 0);
- asn1_write_enumerated(data, 0);
- asn1_write_enumerated(data, 0);
- asn1_write_Integer(data, 0);
- asn1_write_Integer(data, 0);
- asn1_write_BOOLEAN(data, False);
- asn1_push_tag(data, ASN1_CONTEXT(0));
-
- if (domain) {
- asn1_push_tag(data, ASN1_CONTEXT(3));
- asn1_write_OctetString(data, "DnsDomain", 9);
- asn1_write_OctetString(data, domain, strlen(domain));
- asn1_pop_tag(data);
- }
-
- asn1_push_tag(data, ASN1_CONTEXT(3));
- asn1_write_OctetString(data, "Host", 4);
- asn1_write_OctetString(data, hostname, strlen(hostname));
- asn1_pop_tag(data);
-
-#ifdef CLDAP_USER_QUERY
- asn1_push_tag(data, ASN1_CONTEXT(3));
- asn1_write_OctetString(data, "User", 4);
- asn1_write_OctetString(data, "SAMBA$", 6);
- asn1_pop_tag(data);
-
- asn1_push_tag(data, ASN1_CONTEXT(3));
- asn1_write_OctetString(data, "AAC", 4);
- asn1_write_OctetString(data, aac, 4);
- asn1_pop_tag(data);
-#endif
-
- asn1_push_tag(data, ASN1_CONTEXT(3));
- asn1_write_OctetString(data, "NtVer", 5);
- asn1_write_OctetString(data, ntver, 4);
- asn1_pop_tag(data);
-
- asn1_pop_tag(data);
-
- asn1_push_tag(data,ASN1_SEQUENCE(0));
- asn1_write_OctetString(data, "NetLogon", 8);
- asn1_pop_tag(data);
- asn1_pop_tag(data);
- asn1_pop_tag(data);
-
- if (data->has_error) {
- DEBUG(2,("Failed to build cldap netlogon at offset %d\n", (int)data->ofs));
- asn1_free(data);
- return -1;
- }
-
- if (write(sock, data->data, data->length) != (ssize_t)data->length) {
- DEBUG(2,("failed to send cldap query (%s)\n", strerror(errno)));
- asn1_free(data);
- return -1;
- }
-
- asn1_free(data);
-
- return 0;
-}
-
-/*
- receive a cldap netlogon reply
-*/
-static int recv_cldap_netlogon(TALLOC_CTX *mem_ctx,
- int sock,
- uint32_t nt_version,
- struct netlogon_samlogon_response **reply)
-{
- int ret;
- ASN1_DATA *data;
- DATA_BLOB blob = data_blob_null;
- DATA_BLOB os1 = data_blob_null;
- DATA_BLOB os2 = data_blob_null;
- DATA_BLOB os3 = data_blob_null;
- int i1;
- struct netlogon_samlogon_response *r = NULL;
- NTSTATUS status;
-
- fd_set r_fds;
- struct timeval timeout;
-
- blob = data_blob(NULL, 8192);
- if (blob.data == NULL) {
- DEBUG(1, ("data_blob failed\n"));
- errno = ENOMEM;
- return -1;
- }
-
- FD_ZERO(&r_fds);
- FD_SET(sock, &r_fds);
-
- /*
- * half the time of a regular ldap timeout, not less than 3 seconds.
- */
- timeout.tv_sec = MAX(3,lp_ldap_timeout()/2);
- timeout.tv_usec = 0;
-
- ret = sys_select(sock+1, &r_fds, NULL, NULL, &timeout);
- if (ret == -1) {
- DEBUG(10, ("select failed: %s\n", strerror(errno)));
- data_blob_free(&blob);
- return -1;
- }
-
- if (ret == 0) {
- DEBUG(1,("no reply received to cldap netlogon\n"));
- data_blob_free(&blob);
- return -1;
- }
-
- ret = read(sock, blob.data, blob.length);
- if (ret <= 0) {
- DEBUG(1,("no reply received to cldap netlogon\n"));
- data_blob_free(&blob);
- return -1;
- }
- blob.length = ret;
-
- data = asn1_init(mem_ctx);
- if (data == NULL) {
- data_blob_free(&blob);
- return -1;
- }
-
- asn1_load(data, blob);
- asn1_start_tag(data, ASN1_SEQUENCE(0));
- asn1_read_Integer(data, &i1);
- asn1_start_tag(data, ASN1_APPLICATION(4));
- asn1_read_OctetString(data, NULL, &os1);
- asn1_start_tag(data, ASN1_SEQUENCE(0));
- asn1_start_tag(data, ASN1_SEQUENCE(0));
- asn1_read_OctetString(data, NULL, &os2);
- asn1_start_tag(data, ASN1_SET);
- asn1_read_OctetString(data, NULL, &os3);
- asn1_end_tag(data);
- asn1_end_tag(data);
- asn1_end_tag(data);
- asn1_end_tag(data);
- asn1_end_tag(data);
-
- if (data->has_error) {
- data_blob_free(&blob);
- data_blob_free(&os1);
- data_blob_free(&os2);
- data_blob_free(&os3);
- asn1_free(data);
- DEBUG(1,("Failed to parse cldap reply\n"));
- return -1;
- }
-
- r = TALLOC_ZERO_P(mem_ctx, struct netlogon_samlogon_response);
- if (!r) {
- errno = ENOMEM;
- data_blob_free(&os1);
- data_blob_free(&os2);
- data_blob_free(&os3);
- data_blob_free(&blob);
- asn1_free(data);
- return -1;
- }
-
- status = pull_netlogon_samlogon_response(&os3, mem_ctx, NULL, r);
- if (!NT_STATUS_IS_OK(status)) {
- data_blob_free(&os1);
- data_blob_free(&os2);
- data_blob_free(&os3);
- data_blob_free(&blob);
- asn1_free(data);
- TALLOC_FREE(r);
- return -1;
- }
-
- map_netlogon_samlogon_response(r);
-
- data_blob_free(&os1);
- data_blob_free(&os2);
- data_blob_free(&os3);
- data_blob_free(&blob);
-
- asn1_free(data);
-
- if (reply) {
- *reply = r;
- } else {
- TALLOC_FREE(r);
- }
-
- return 0;
-}
+#include "../libcli/cldap/cldap.h"
+#include "../lib/tsocket/tsocket.h"
/*******************************************************************
do a cldap netlogon query. Always 389/udp
@@ -244,31 +32,81 @@ bool ads_cldap_netlogon(TALLOC_CTX *mem_ctx,
const char *server,
const char *realm,
uint32_t nt_version,
- struct netlogon_samlogon_response **reply)
+ struct netlogon_samlogon_response **_reply)
{
- int sock;
+ struct cldap_socket *cldap;
+ struct cldap_netlogon io;
+ struct netlogon_samlogon_response *reply;
+ NTSTATUS status;
+ struct in_addr addr;
+ char addrstr[INET_ADDRSTRLEN];
+ const char *dest_str;
int ret;
+ struct tsocket_address *dest_addr;
- sock = open_udp_socket(server, LDAP_PORT );
- if (sock == -1) {
- DEBUG(2,("ads_cldap_netlogon: Failed to open udp socket to %s\n",
+ addr = interpret_addr2(server);
+ dest_str = inet_ntop(AF_INET, &addr,
+ addrstr, sizeof(addrstr));
+ if (!dest_str) {
+ DEBUG(2,("Failed to resolve[%s] into an address for cldap\n",
server));
- return False;
+ return false;
}
- ret = send_cldap_netlogon(mem_ctx, sock, realm, global_myname(), nt_version);
+ ret = tsocket_address_inet_from_strings(mem_ctx, "ipv4",
+ dest_str, LDAP_PORT,
+ &dest_addr);
if (ret != 0) {
- close(sock);
- return False;
+ status = map_nt_error_from_unix(errno);
+ DEBUG(2,("Failed to create cldap tsocket_address for %s - %s\n",
+ dest_str, nt_errstr(status)));
+ return false;
+ }
+
+ /*
+ * as we use a connected udp socket
+ */
+ status = cldap_socket_init(mem_ctx, NULL, NULL, dest_addr, &cldap);
+ TALLOC_FREE(dest_addr);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(2,("Failed to create cldap socket to %s: %s\n",
+ dest_str, nt_errstr(status)));
+ return false;
}
- ret = recv_cldap_netlogon(mem_ctx, sock, nt_version, reply);
- close(sock);
- if (ret == -1) {
- return False;
+ reply = talloc(cldap, struct netlogon_samlogon_response);
+ if (!reply) {
+ goto failed;
}
- return True;
+ /*
+ * as we use a connected socket, so we don't need to specify the
+ * destination
+ */
+ io.in.dest_address = NULL;
+ io.in.dest_port = 0;
+ io.in.realm = realm;
+ io.in.host = NULL;
+ io.in.user = NULL;
+ io.in.domain_guid = NULL;
+ io.in.domain_sid = NULL;
+ io.in.acct_control = 0;
+ io.in.version = nt_version;
+ io.in.map_response = false;
+
+ status = cldap_netlogon(cldap, NULL, reply, &io);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(2,("cldap_netlogon() failed: %s\n", nt_errstr(status)));
+ goto failed;
+ }
+
+ *reply = io.out.netlogon;
+ *_reply = talloc_move(mem_ctx, &reply);
+ TALLOC_FREE(cldap);
+ return true;
+failed:
+ TALLOC_FREE(cldap);
+ return false;
}
/*******************************************************************
generated by cgit (git 2.34.1) at 2024-11-24 02:28:47 +0000