NetBSD/usr.sbin/dhcp/dhcpctl/remote.c

360 lines
11 KiB
C

/* remote.c
The dhcpctl remote object. */
/*
* Copyright (c) 1999-2000 Internet Software Consortium.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The Internet Software Consortium nor the names
* of its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This software has been written for the Internet Software Consortium
* by Ted Lemon in cooperation with Vixie Enterprises and Nominum, Inc.
* To learn more about the Internet Software Consortium, see
* ``http://www.isc.org/''. To learn more about Vixie Enterprises,
* see ``http://www.vix.com''. To learn more about Nominum, Inc., see
* ``http://www.nominum.com''.
*/
#include <omapip/omapip_p.h>
#include "dhcpctl.h"
/* dhcpctl_new_authenticator
synchronous - creates an authenticator object.
returns nonzero status code if the object couldn't be created
stores handle to authenticator through h if successful, and returns zero.
name is the authenticator name (NUL-terminated string).
algorithm is the NUL-terminated string name of the algorithm to use
(currently, only "hmac-md5" is supported).
secret and secret_len is the key secret. */
dhcpctl_status dhcpctl_new_authenticator (dhcpctl_handle *h,
const char *name,
const char *algorithm,
const char *secret,
unsigned secret_len)
{
struct auth_key *key = (struct auth_key *)0;
isc_result_t status;
status = omapi_auth_key_new (&key, MDL);
if (status != ISC_R_SUCCESS)
return status;
key -> name = dmalloc (strlen (name) + 1, MDL);
if (!key -> name) {
omapi_auth_key_dereference (&key, MDL);
return ISC_R_NOMEMORY;
}
strcpy (key -> name, name);
/* If the algorithm name isn't an FQDN, tack on the
.SIG-ALG.REG.NET. domain. */
if (strchr (algorithm, '.') == 0) {
static char add[] = ".SIG-ALG.REG.INT.";
key -> algorithm = dmalloc (strlen (algorithm) +
sizeof (add), MDL);
if (!key -> algorithm) {
omapi_auth_key_dereference (&key, MDL);
return ISC_R_NOMEMORY;
}
strcpy (key -> algorithm, algorithm);
strcat (key -> algorithm, add);
} else {
key -> algorithm = dmalloc (strlen (algorithm) + 1, MDL);
if (!key -> algorithm) {
omapi_auth_key_dereference (&key, MDL);
return ISC_R_NOMEMORY;
}
strcpy (key -> algorithm, algorithm);
}
status = omapi_data_string_new (&key -> key, secret_len, MDL);
if (status != ISC_R_SUCCESS) {
omapi_auth_key_dereference (&key, MDL);
return status;
}
memcpy (key -> key -> value, secret, secret_len);
key -> key -> len = secret_len;
*h = (dhcpctl_handle) key;
return ISC_R_SUCCESS;
}
/* dhcpctl_new_object
synchronous - creates a local handle for a host entry.
returns nonzero status code if the local host entry couldn't
be created
stores handle to host through h if successful, and returns zero.
object_type is a pointer to a NUL-terminated string containing
the ascii name of the type of object being accessed - e.g., "host" */
dhcpctl_status dhcpctl_new_object (dhcpctl_handle *h,
dhcpctl_handle connection,
const char *object_type)
{
dhcpctl_remote_object_t *m;
omapi_object_t *g;
isc_result_t status;
m = (dhcpctl_remote_object_t *)0;
status = omapi_object_allocate ((omapi_object_t **)&m,
dhcpctl_remote_type, 0, MDL);
if (status != ISC_R_SUCCESS)
return status;
g = (omapi_object_t *)0;
status = omapi_generic_new (&g, MDL);
if (status != ISC_R_SUCCESS) {
dfree (m, MDL);
return status;
}
status = omapi_object_reference (&m -> inner, g, MDL);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference ((omapi_object_t **)&m, MDL);
omapi_object_dereference (&g, MDL);
return status;
}
status = omapi_object_reference (&g -> outer,
(omapi_object_t *)m, MDL);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference ((omapi_object_t **)&m, MDL);
omapi_object_dereference (&g, MDL);
return status;
}
status = omapi_typed_data_new (MDL, &m -> rtype,
omapi_datatype_string,
object_type);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference ((omapi_object_t **)&m, MDL);
omapi_object_dereference (&g, MDL);
return status;
}
status = omapi_object_reference (h, (omapi_object_t *)m, MDL);
omapi_object_dereference ((omapi_object_t **)&m, MDL);
omapi_object_dereference (&g, MDL);
if (status != ISC_R_SUCCESS)
return status;
return status;
}
/* asynchronous - just queues the request
returns nonzero status code if open couldn't be queued
returns zero if open was queued
h is a handle to an object created by dhcpctl_new_object
connection is a connection to a DHCP server
flags include:
DHCPCTL_CREATE - if the object doesn't exist, create it
DHCPCTL_UPDATE - update the object on the server using the
attached parameters
DHCPCTL_EXCL - error if the object exists and DHCPCTL_CREATE
was also specified */
dhcpctl_status dhcpctl_open_object (dhcpctl_handle h,
dhcpctl_handle connection,
int flags)
{
isc_result_t status;
omapi_object_t *message = (omapi_object_t *)0;
dhcpctl_remote_object_t *remote;
if (h -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
remote = (dhcpctl_remote_object_t *)h;
status = omapi_message_new (&message, MDL);
if (status != ISC_R_SUCCESS)
return status;
status = omapi_set_int_value (message, (omapi_object_t *)0,
"op", OMAPI_OP_OPEN);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
status = omapi_set_object_value (message, (omapi_object_t *)0,
"object", h);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
if (flags & DHCPCTL_CREATE) {
status = omapi_set_boolean_value (message, (omapi_object_t *)0,
"create", 1);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
}
if (flags & DHCPCTL_UPDATE) {
status = omapi_set_boolean_value (message, (omapi_object_t *)0,
"update", 1);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
}
if (flags & DHCPCTL_EXCL) {
status = omapi_set_boolean_value (message, (omapi_object_t *)0,
"exclusive", 1);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
}
if (remote -> rtype) {
status = omapi_set_value_str (message, (omapi_object_t *)0,
"type", remote -> rtype);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
}
status = omapi_message_register (message);
if (status != ISC_R_SUCCESS) {
omapi_object_dereference (&message, MDL);
return status;
}
return omapi_protocol_send_message (connection -> outer,
(omapi_object_t *)0,
message, (omapi_object_t *)0);
}
/* Callback methods (not meant to be called directly) */
isc_result_t dhcpctl_remote_set_value (omapi_object_t *h,
omapi_object_t *id,
omapi_data_string_t *name,
omapi_typed_data_t *value)
{
dhcpctl_remote_object_t *ro;
unsigned long rh;
isc_result_t status;
if (h -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
ro = (dhcpctl_remote_object_t *)h;
if (!omapi_ds_strcmp (name, "remote-handle")) {
status = omapi_get_int_value (&rh, value);
if (status == ISC_R_SUCCESS)
ro -> remote_handle = rh;
return status;
}
if (h -> inner && h -> inner -> type -> set_value)
return (*(h -> inner -> type -> set_value))
(h -> inner, id, name, value);
return ISC_R_NOTFOUND;
}
isc_result_t dhcpctl_remote_get_value (omapi_object_t *h,
omapi_object_t *id,
omapi_data_string_t *name,
omapi_value_t **value)
{
if (h -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
if (h -> inner && h -> inner -> type -> get_value)
return (*(h -> inner -> type -> get_value))
(h -> inner, id, name, value);
return ISC_R_NOTFOUND;
}
isc_result_t dhcpctl_remote_signal_handler (omapi_object_t *o,
const char *name, va_list ap)
{
dhcpctl_remote_object_t *p;
omapi_typed_data_t *tv;
if (o -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
p = (dhcpctl_remote_object_t *)o;
if (!strcmp (name, "updated")) {
p -> waitstatus = ISC_R_SUCCESS;
return omapi_signal_in (o -> inner, "ready");
}
if (!strcmp (name, "status")) {
p -> waitstatus = va_arg (ap, isc_result_t);
if (p -> message)
omapi_typed_data_dereference (&p -> message, MDL);
tv = va_arg (ap, omapi_typed_data_t *);
if (tv)
omapi_typed_data_reference (&p -> message, tv, MDL);
return omapi_signal_in (o -> inner, "ready");
}
if (p -> inner && p -> inner -> type -> signal_handler)
return (*(p -> inner -> type -> signal_handler))
(p -> inner, name, ap);
return ISC_R_SUCCESS;
}
isc_result_t dhcpctl_remote_destroy (omapi_object_t *h,
const char *file, int line)
{
dhcpctl_remote_object_t *p;
if (h -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
p = (dhcpctl_remote_object_t *)h;
if (p -> handle)
omapi_object_dereference ((omapi_object_t **)&p -> handle,
file, line);
return ISC_R_SUCCESS;
}
/* Write all the published values associated with the object through the
specified connection. */
isc_result_t dhcpctl_remote_stuff_values (omapi_object_t *c,
omapi_object_t *id,
omapi_object_t *p)
{
int i;
if (p -> type != dhcpctl_remote_type)
return ISC_R_INVALIDARG;
if (p -> inner && p -> inner -> type -> stuff_values)
return (*(p -> inner -> type -> stuff_values)) (c, id,
p -> inner);
return ISC_R_SUCCESS;
}