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/>.
*/
/*
do a cldap netlogon query
*/
-static int send_cldap_netlogon(int sock, const char *domain,
+static int send_cldap_netlogon(TALLOC_CTX *mem_ctx, int sock, const char *domain,
const char *hostname, unsigned ntversion)
{
- ASN1_DATA data;
+ ASN1_DATA *data;
char ntver[4];
#ifdef CLDAP_USER_QUERY
char aac[4];
#endif
SIVAL(ntver, 0, ntversion);
- memset(&data, 0, sizeof(data));
+ 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_BOOLEAN2(&data, False);
- asn1_push_tag(&data, ASN1_CONTEXT(0));
+ 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, "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);
+ 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$", 6);
- asn1_pop_tag(&data);
-
- asn1_push_tag(&data, ASN1_CONTEXT(3));
- asn1_write_OctetString(&data, "AAC", 4);
- asn1_write_OctetString(&data, aac, 4);
- asn1_pop_tag(&data);
+ asn1_push_tag(data, ASN1_CONTEXT(3));
+ asn1_write_OctetString(data, "User", 4);
+ asn1_write_OctetString(data, "SAMBA$", 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_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_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);
+ 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);
+ 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) {
+ 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);
+ asn1_free(data);
return -1;
}
- asn1_free(&data);
+ asn1_free(data);
return 0;
}
-static SIG_ATOMIC_T gotalarm;
-
-/***************************************************************
- Signal function to tell us we timed out.
-****************************************************************/
-
-static void gotalarm_sig(void)
-{
- gotalarm = 1;
-}
-
/*
receive a cldap netlogon reply
*/
struct netlogon_samlogon_response **reply)
{
int ret;
- ASN1_DATA data;
+ 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;
- /* half the time of a regular ldap timeout, not less than 3 seconds. */
- unsigned int al_secs = MAX(3,lp_ldap_timeout()/2);
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"));
return -1;
}
- /* Setup timeout */
- gotalarm = 0;
- CatchSignal(SIGALRM, SIGNAL_CAST gotalarm_sig);
- alarm(al_secs);
- /* End setup timeout. */
-
- ret = read(sock, blob.data, blob.length);
+ if (sock < 0 || sock >= FD_SETSIZE) {
+ errno = EBADF;
+ 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;
+ }
- /* Teardown timeout. */
- CatchSignal(SIGALRM, SIGNAL_CAST SIG_IGN);
- alarm(0);
+ if (ret == 0) {
+ DEBUG(1,("no reply received to cldap netlogon "
+ "(select timeout %u sec)\n",
+ (unsigned int)timeout.tv_sec));
+ 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"));
+ DEBUG(1,("no reply received to cldap netlogon "
+ "(ret = %d: Error = %s)\n",
+ ret,
+ ret == -1 ? strerror(errno) : "" ));
data_blob_free(&blob);
return -1;
}
blob.length = ret;
- 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, &os1);
- asn1_start_tag(&data, ASN1_SEQUENCE(0));
- asn1_start_tag(&data, ASN1_SEQUENCE(0));
- asn1_read_OctetString(&data, &os2);
- asn1_start_tag(&data, ASN1_SET);
- asn1_read_OctetString(&data, &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 = 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);
+ asn1_free(data);
DEBUG(1,("Failed to parse cldap reply\n"));
return -1;
}
data_blob_free(&os2);
data_blob_free(&os3);
data_blob_free(&blob);
+ asn1_free(data);
return -1;
}
data_blob_free(&os2);
data_blob_free(&os3);
data_blob_free(&blob);
+ asn1_free(data);
TALLOC_FREE(r);
return -1;
}
data_blob_free(&os2);
data_blob_free(&os3);
data_blob_free(&blob);
-
- asn1_free(&data);
+
+ asn1_free(data);
if (reply) {
*reply = r;
sock = open_udp_socket(server, LDAP_PORT );
if (sock == -1) {
- DEBUG(2,("ads_cldap_netlogon: Failed to open udp socket to %s\n",
- server));
+ DEBUG(2,("ads_cldap_netlogon: Failed to open udp socket to %s. "
+ "Error %s\n",
+ server,
+ strerror(errno) ));
return False;
}
- ret = send_cldap_netlogon(sock, realm, global_myname(), nt_version);
+ ret = send_cldap_netlogon(mem_ctx, sock, realm, global_myname(), nt_version);
if (ret != 0) {
close(sock);
return False;
git.samba.org / samba.git / blobdiff