-
-/*
- 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;
-}