summaryrefslogtreecommitdiff
path: root/src/charon/config/backends/local_backend.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/charon/config/backends/local_backend.c')
-rw-r--r--src/charon/config/backends/local_backend.c322
1 files changed, 0 insertions, 322 deletions
diff --git a/src/charon/config/backends/local_backend.c b/src/charon/config/backends/local_backend.c
deleted file mode 100644
index e04c72ac1..000000000
--- a/src/charon/config/backends/local_backend.c
+++ /dev/null
@@ -1,322 +0,0 @@
-/**
- * @file local_backend.c
- *
- * @brief Implementation of local_backend_t.
- *
- */
-
-/*
- * Copyright (C) 2006 Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * 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 the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * 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.
- */
-
-#include <string.h>
-
-#include "local_backend.h"
-
-#include <daemon.h>
-#include <utils/linked_list.h>
-#include <crypto/ca.h>
-
-
-typedef struct private_local_backend_t private_local_backend_t;
-
-/**
- * Private data of an local_backend_t object
- */
-struct private_local_backend_t {
-
- /**
- * Public part
- */
- local_backend_t public;
-
- /**
- * list of configs
- */
- linked_list_t *cfgs;
-
- /**
- * Mutex to exclusivly access list
- */
- pthread_mutex_t mutex;
-};
-
-/**
- * implements backen_t.get_ike_cfg.
- */
-static ike_cfg_t *get_ike_cfg(private_local_backend_t *this,
- host_t *my_host, host_t *other_host)
-{
- peer_cfg_t *peer;
- ike_cfg_t *current, *found = NULL;
- iterator_t *iterator;
- host_t *my_candidate, *other_candidate;
- enum {
- MATCH_NONE = 0x00,
- MATCH_ANY = 0x01,
- MATCH_ME = 0x04,
- MATCH_OTHER = 0x08,
- } prio, best = MATCH_ANY;
-
- DBG2(DBG_CFG, "looking for a config for %H...%H",
- my_host, other_host);
-
- iterator = this->cfgs->create_iterator_locked(this->cfgs, &this->mutex);
- while (iterator->iterate(iterator, (void**)&peer))
- {
- prio = MATCH_NONE;
- current = peer->get_ike_cfg(peer);
- my_candidate = current->get_my_host(current);
- other_candidate = current->get_other_host(current);
-
- if (my_candidate->ip_equals(my_candidate, my_host))
- {
- prio += MATCH_ME;
- }
- else if (my_candidate->is_anyaddr(my_candidate))
- {
- prio += MATCH_ANY;
- }
-
- if (other_candidate->ip_equals(other_candidate, other_host))
- {
- prio += MATCH_OTHER;
- }
- else if (other_candidate->is_anyaddr(other_candidate))
- {
- prio += MATCH_ANY;
- }
-
- DBG2(DBG_CFG, " candidate '%s': %H...%H, prio %d",
- peer->get_name(peer), my_candidate, other_candidate, prio);
-
- /* we require at least two MATCH_ANY */
- if (prio > best)
- {
- best = prio;
- found = current;
- }
- }
- if (found)
- {
- found->get_ref(found);
- }
- iterator->destroy(iterator);
- return found;
-}
-
-#define PRIO_NO_MATCH_FOUND 256
-
-/**
- * implements backend_t.get_peer.
- */
-static peer_cfg_t *get_peer_cfg(private_local_backend_t *this,
- identification_t *my_id, identification_t *other_id,
- ca_info_t *other_ca_info)
-{
- peer_cfg_t *current, *found = NULL;
- iterator_t *iterator;
- identification_t *my_candidate, *other_candidate;
- int best = PRIO_NO_MATCH_FOUND;
-
- DBG2(DBG_CFG, "looking for a config for %D...%D", my_id, other_id);
-
- iterator = this->cfgs->create_iterator_locked(this->cfgs, &this->mutex);
- while (iterator->iterate(iterator, (void**)&current))
- {
- int wc1, wc2;
-
- my_candidate = current->get_my_id(current);
- other_candidate = current->get_other_id(current);
-
- if (my_candidate->matches(my_candidate, my_id, &wc1)
- && other_id->matches(other_id, other_candidate, &wc2))
- {
- int prio = (wc1 + wc2) * (MAX_CA_PATH_LEN + 1);
- int pathlen = 0;
- identification_t *other_candidate_ca = current->get_other_ca(current);
- linked_list_t *groups = current->get_groups(current);
-
- /* is a group membership required? */
- if (groups->get_count(groups) > 0)
- {
- DBG1(DBG_CFG, " group membership required");
- }
-
- /* are there any ca constraints? */
- if (other_candidate_ca->get_type(other_candidate_ca) != ID_ANY)
- {
- ca_info_t *ca_info = other_ca_info;
-
- for (pathlen = 0; pathlen < MAX_CA_PATH_LEN; pathlen++)
- {
- if (ca_info == NULL)
- {
- prio = PRIO_NO_MATCH_FOUND;
- break;
- }
- else
- {
- x509_t *cacert = ca_info->get_certificate(ca_info);
- identification_t *other_ca = cacert->get_subject(cacert);
-
- if (other_candidate_ca->equals(other_candidate_ca, other_ca))
- {
- /* found a ca match */
- break;
- }
- if (cacert->is_self_signed(cacert))
- {
- /* reached the root ca without a match */
- prio = PRIO_NO_MATCH_FOUND;
- break;
- }
- /* move a level upward in the trust path hierarchy */
- ca_info = charon->credentials->get_issuer(charon->credentials, cacert);
- }
- }
- if (pathlen == MAX_CA_PATH_LEN)
- {
- DBG1(DBG_CFG, "maximum ca path length of %d levels reached", MAX_CA_PATH_LEN);
- prio = PRIO_NO_MATCH_FOUND;
- }
- }
- if (prio == PRIO_NO_MATCH_FOUND)
- {
- DBG2(DBG_CFG, " candidate '%s': %D...%D, no ca match",
- current->get_name(current), my_candidate, other_candidate);
- }
- else
- {
- prio += pathlen;
- DBG2(DBG_CFG, " candidate '%s': %D...%D, prio %d",
- current->get_name(current), my_candidate, other_candidate, prio);
-
- if (prio < best)
- {
- found = current;
- best = prio;
- }
- }
- }
- }
- if (found)
- {
- DBG1(DBG_CFG, "found matching config \"%s\": %D...%D, prio %d",
- found->get_name(found),
- found->get_my_id(found),
- found->get_other_id(found),
- best);
- found->get_ref(found);
- }
- iterator->destroy(iterator);
- return found;
-}
-
-/**
- * implements backend_t.get_peer_cfg_by_name.
- */
-static peer_cfg_t *get_peer_cfg_by_name(private_local_backend_t *this, char *name)
-{
- iterator_t *i1, *i2;
- peer_cfg_t *current, *found = NULL;
- child_cfg_t *child;
-
- i1 = this->cfgs->create_iterator(this->cfgs, TRUE);
- while (i1->iterate(i1, (void**)&current))
- {
- /* compare peer_cfgs name first */
- if (streq(current->get_name(current), name))
- {
- found = current;
- found->get_ref(found);
- break;
- }
- /* compare all child_cfg names otherwise */
- i2 = current->create_child_cfg_iterator(current);
- while (i2->iterate(i2, (void**)&child))
- {
- if (streq(child->get_name(child), name))
- {
- found = current;
- found->get_ref(found);
- break;
- }
- }
- i2->destroy(i2);
- if (found)
- {
- break;
- }
- }
- i1->destroy(i1);
- return found;
-}
-
-/**
- * Implementation of backend_t.is_writable.
- */
-static bool is_writeable(private_local_backend_t *this)
-{
- return TRUE;
-}
-
-/**
- * Implementation of writable_backend_t.create_iterator.
- */
-static iterator_t* create_iterator(private_local_backend_t *this)
-{
- return this->cfgs->create_iterator_locked(this->cfgs, &this->mutex);
-}
-
-/**
- * Implementation of writable_backend_t.add_peer_cfg.
- */
-static void add_cfg(private_local_backend_t *this, peer_cfg_t *config)
-{
- pthread_mutex_lock(&this->mutex);
- this->cfgs->insert_last(this->cfgs, config);
- pthread_mutex_unlock(&this->mutex);
-}
-
-/**
- * Implementation of backend_t.destroy.
- */
-static void destroy(private_local_backend_t *this)
-{
- this->cfgs->destroy_offset(this->cfgs, offsetof(peer_cfg_t, destroy));
- free(this);
-}
-
-/**
- * Described in header.
- */
-backend_t *backend_create(void)
-{
- private_local_backend_t *this = malloc_thing(private_local_backend_t);
-
- this->public.backend.backend.get_ike_cfg = (ike_cfg_t* (*)(backend_t*, host_t*, host_t*))get_ike_cfg;
- this->public.backend.backend.get_peer_cfg = (peer_cfg_t* (*)(backend_t*,identification_t*,identification_t*,ca_info_t*))get_peer_cfg;
- this->public.backend.backend.get_peer_cfg_by_name = (peer_cfg_t* (*)(backend_t*,char*))get_peer_cfg_by_name;
- this->public.backend.backend.is_writeable = (bool(*) (backend_t*))is_writeable;
- this->public.backend.backend.destroy = (void (*)(backend_t*))destroy;
- this->public.backend.create_iterator = (iterator_t* (*)(writeable_backend_t*))create_iterator;
- this->public.backend.add_cfg = (void (*)(writeable_backend_t*,peer_cfg_t*))add_cfg;
-
- /* private variables */
- this->cfgs = linked_list_create();
- pthread_mutex_init(&this->mutex, NULL);
-
- return &this->public.backend.backend;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 18:16:47 +0000