summaryrefslogtreecommitdiff
path: root/src/libcharon/sa/ikev1/phase1.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libcharon/sa/ikev1/phase1.c')
-rw-r--r--src/libcharon/sa/ikev1/phase1.c795
1 files changed, 795 insertions, 0 deletions
diff --git a/src/libcharon/sa/ikev1/phase1.c b/src/libcharon/sa/ikev1/phase1.c
new file mode 100644
index 000000000..4096141ec
--- /dev/null
+++ b/src/libcharon/sa/ikev1/phase1.c
@@ -0,0 +1,795 @@
+/*
+ * Copyright (C) 2012 Tobias Brunner
+ * Hochschule fuer Technik Rapperswil
+ *
+ * Copyright (C) 2012 Martin Willi
+ * Copyright (C) 2012 revosec AG
+ *
+ * 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 "phase1.h"
+
+#include <daemon.h>
+#include <sa/ikev1/keymat_v1.h>
+#include <encoding/payloads/ke_payload.h>
+#include <encoding/payloads/nonce_payload.h>
+#include <utils/linked_list.h>
+
+typedef struct private_phase1_t private_phase1_t;
+
+/**
+ * Private data of an phase1_t object.
+ */
+struct private_phase1_t {
+
+ /**
+ * Public phase1_t interface.
+ */
+ phase1_t public;
+
+ /**
+ * IKE_SA we negotiate
+ */
+ ike_sa_t *ike_sa;
+
+ /**
+ * Currently selected peer config
+ */
+ peer_cfg_t *peer_cfg;
+
+ /**
+ * Other possible peer config candidates
+ */
+ linked_list_t *candidates;
+
+ /**
+ * Acting as initiator
+ */
+ bool initiator;
+
+ /**
+ * Extracted SA payload bytes
+ */
+ chunk_t sa_payload;
+
+ /**
+ * DH exchange
+ */
+ diffie_hellman_t *dh;
+
+ /**
+ * Keymat derivation (from SA)
+ */
+ keymat_v1_t *keymat;
+
+ /**
+ * Received public DH value from peer
+ */
+ chunk_t dh_value;
+
+ /**
+ * Initiators nonce
+ */
+ chunk_t nonce_i;
+
+ /**
+ * Responder nonce
+ */
+ chunk_t nonce_r;
+};
+
+/**
+ * Get the first authentcation config from peer config
+ */
+static auth_cfg_t *get_auth_cfg(peer_cfg_t *peer_cfg, bool local)
+{
+ enumerator_t *enumerator;
+ auth_cfg_t *cfg = NULL;
+
+ enumerator = peer_cfg->create_auth_cfg_enumerator(peer_cfg, local);
+ enumerator->enumerate(enumerator, &cfg);
+ enumerator->destroy(enumerator);
+ return cfg;
+}
+
+/**
+ * Lookup a shared secret for this IKE_SA
+ */
+static shared_key_t *lookup_shared_key(private_phase1_t *this,
+ peer_cfg_t *peer_cfg)
+{
+ host_t *me, *other;
+ identification_t *my_id, *other_id;
+ shared_key_t *shared_key = NULL;
+ auth_cfg_t *my_auth, *other_auth;
+ enumerator_t *enumerator;
+
+ /* try to get a PSK for IP addresses */
+ me = this->ike_sa->get_my_host(this->ike_sa);
+ other = this->ike_sa->get_other_host(this->ike_sa);
+ my_id = identification_create_from_sockaddr(me->get_sockaddr(me));
+ other_id = identification_create_from_sockaddr(other->get_sockaddr(other));
+ if (my_id && other_id)
+ {
+ shared_key = lib->credmgr->get_shared(lib->credmgr, SHARED_IKE,
+ my_id, other_id);
+ }
+ DESTROY_IF(my_id);
+ DESTROY_IF(other_id);
+ if (shared_key)
+ {
+ return shared_key;
+ }
+
+ if (peer_cfg)
+ { /* as initiator or aggressive responder, use identities */
+ my_auth = get_auth_cfg(peer_cfg, TRUE);
+ other_auth = get_auth_cfg(peer_cfg, FALSE);
+ if (my_auth && other_auth)
+ {
+ my_id = my_auth->get(my_auth, AUTH_RULE_IDENTITY);
+ if (peer_cfg->use_aggressive(peer_cfg))
+ {
+ other_id = this->ike_sa->get_other_id(this->ike_sa);
+ }
+ else
+ {
+ other_id = other_auth->get(other_auth, AUTH_RULE_IDENTITY);
+ }
+ if (my_id && other_id)
+ {
+ shared_key = lib->credmgr->get_shared(lib->credmgr, SHARED_IKE,
+ my_id, other_id);
+ if (!shared_key)
+ {
+ DBG1(DBG_IKE, "no shared key found for '%Y'[%H] - '%Y'[%H]",
+ my_id, me, other_id, other);
+ }
+ }
+ }
+ return shared_key;
+ }
+ /* as responder, we try to find a config by IP */
+ enumerator = charon->backends->create_peer_cfg_enumerator(charon->backends,
+ me, other, NULL, NULL, IKEV1);
+ while (enumerator->enumerate(enumerator, &peer_cfg))
+ {
+ my_auth = get_auth_cfg(peer_cfg, TRUE);
+ other_auth = get_auth_cfg(peer_cfg, FALSE);
+ if (my_auth && other_auth)
+ {
+ my_id = my_auth->get(my_auth, AUTH_RULE_IDENTITY);
+ other_id = other_auth->get(other_auth, AUTH_RULE_IDENTITY);
+ if (my_id)
+ {
+ shared_key = lib->credmgr->get_shared(lib->credmgr, SHARED_IKE,
+ my_id, other_id);
+ if (shared_key)
+ {
+ break;
+ }
+ else
+ {
+ DBG1(DBG_IKE, "no shared key found for '%Y'[%H] - '%Y'[%H]",
+ my_id, me, other_id, other);
+ }
+ }
+ }
+ }
+ enumerator->destroy(enumerator);
+ if (!peer_cfg)
+ {
+ DBG1(DBG_IKE, "no shared key found for %H - %H", me, other);
+ }
+ return shared_key;
+}
+
+METHOD(phase1_t, create_hasher, bool,
+ private_phase1_t *this)
+{
+ return this->keymat->create_hasher(this->keymat,
+ this->ike_sa->get_proposal(this->ike_sa));
+}
+
+METHOD(phase1_t, create_dh, bool,
+ private_phase1_t *this, diffie_hellman_group_t group)
+{
+ this->dh = this->keymat->keymat.create_dh(&this->keymat->keymat, group);
+ return this->dh != NULL;
+}
+
+METHOD(phase1_t, derive_keys, bool,
+ private_phase1_t *this, peer_cfg_t *peer_cfg, auth_method_t method)
+{
+ shared_key_t *shared_key = NULL;
+
+ switch (method)
+ {
+ case AUTH_PSK:
+ case AUTH_XAUTH_INIT_PSK:
+ case AUTH_XAUTH_RESP_PSK:
+ shared_key = lookup_shared_key(this, peer_cfg);
+ if (!shared_key)
+ {
+ return FALSE;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (!this->keymat->derive_ike_keys(this->keymat,
+ this->ike_sa->get_proposal(this->ike_sa),
+ this->dh, this->dh_value, this->nonce_i, this->nonce_r,
+ this->ike_sa->get_id(this->ike_sa), method, shared_key))
+ {
+ DESTROY_IF(shared_key);
+ DBG1(DBG_IKE, "key derivation for %N failed", auth_method_names, method);
+ return FALSE;
+ }
+ charon->bus->ike_keys(charon->bus, this->ike_sa, this->dh, this->dh_value,
+ this->nonce_i, this->nonce_r, NULL, shared_key);
+ DESTROY_IF(shared_key);
+ return TRUE;
+}
+
+/**
+ * Check if a peer skipped authentication by using Hybrid authentication
+ */
+static bool skipped_auth(private_phase1_t *this,
+ auth_method_t method, bool local)
+{
+ bool initiator;
+
+ initiator = local == this->initiator;
+ if (initiator && method == AUTH_HYBRID_INIT_RSA)
+ {
+ return TRUE;
+ }
+ if (!initiator && method == AUTH_HYBRID_RESP_RSA)
+ {
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/**
+ * Check if remote authentication constraints fulfilled
+ */
+static bool check_constraints(private_phase1_t *this, auth_method_t method)
+{
+ identification_t *id;
+ auth_cfg_t *auth, *cfg;
+ peer_cfg_t *peer_cfg;
+
+ auth = this->ike_sa->get_auth_cfg(this->ike_sa, FALSE);
+ /* auth identity to comply */
+ id = this->ike_sa->get_other_id(this->ike_sa);
+ auth->add(auth, AUTH_RULE_IDENTITY, id->clone(id));
+ if (skipped_auth(this, method, FALSE))
+ {
+ return TRUE;
+ }
+ peer_cfg = this->ike_sa->get_peer_cfg(this->ike_sa);
+ cfg = get_auth_cfg(peer_cfg, FALSE);
+ return cfg && auth->complies(auth, cfg, TRUE);
+}
+
+/**
+ * Save authentication information after authentication succeeded
+ */
+static void save_auth_cfg(private_phase1_t *this,
+ auth_method_t method, bool local)
+{
+ auth_cfg_t *auth;
+
+ if (skipped_auth(this, method, local))
+ {
+ return;
+ }
+ auth = auth_cfg_create();
+ /* for local config, we _copy_ entires from the config, as it contains
+ * certificates we must send later. */
+ auth->merge(auth, this->ike_sa->get_auth_cfg(this->ike_sa, local), local);
+ this->ike_sa->add_auth_cfg(this->ike_sa, local, auth);
+}
+
+/**
+ * Create an authenticator instance
+ */
+static authenticator_t* create_authenticator(private_phase1_t *this,
+ auth_method_t method, chunk_t id)
+{
+ authenticator_t *authenticator;
+
+ authenticator = authenticator_create_v1(this->ike_sa, this->initiator,
+ method, this->dh, this->dh_value, this->sa_payload, id);
+ if (!authenticator)
+ {
+ DBG1(DBG_IKE, "negotiated authentication method %N not supported",
+ auth_method_names, method);
+ }
+ return authenticator;
+}
+
+METHOD(phase1_t, verify_auth, bool,
+ private_phase1_t *this, auth_method_t method, message_t *message,
+ chunk_t id_data)
+{
+ authenticator_t *authenticator;
+ status_t status;
+
+ authenticator = create_authenticator(this, method, id_data);
+ if (authenticator)
+ {
+ status = authenticator->process(authenticator, message);
+ authenticator->destroy(authenticator);
+ if (status == SUCCESS && check_constraints(this, method))
+ {
+ save_auth_cfg(this, method, FALSE);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+METHOD(phase1_t, build_auth, bool,
+ private_phase1_t *this, auth_method_t method, message_t *message,
+ chunk_t id_data)
+{
+ authenticator_t *authenticator;
+ status_t status;
+
+ authenticator = create_authenticator(this, method, id_data);
+ if (authenticator)
+ {
+ status = authenticator->build(authenticator, message);
+ authenticator->destroy(authenticator);
+ if (status == SUCCESS)
+ {
+ save_auth_cfg(this, method, TRUE);
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/**
+ * Get the two auth classes from local or remote config
+ */
+static void get_auth_class(peer_cfg_t *peer_cfg, bool local,
+ auth_class_t *c1, auth_class_t *c2)
+{
+ enumerator_t *enumerator;
+ auth_cfg_t *auth;
+
+ *c1 = *c2 = AUTH_CLASS_ANY;
+
+ enumerator = peer_cfg->create_auth_cfg_enumerator(peer_cfg, local);
+ while (enumerator->enumerate(enumerator, &auth))
+ {
+ if (*c1 == AUTH_CLASS_ANY)
+ {
+ *c1 = (uintptr_t)auth->get(auth, AUTH_RULE_AUTH_CLASS);
+ }
+ else
+ {
+ *c2 = (uintptr_t)auth->get(auth, AUTH_RULE_AUTH_CLASS);
+ break;
+ }
+ }
+ enumerator->destroy(enumerator);
+}
+
+/**
+ * Select an auth method to use by checking what key we have
+ */
+static auth_method_t get_pubkey_method(private_phase1_t *this, auth_cfg_t *auth)
+{
+ auth_method_t method = AUTH_NONE;
+ identification_t *id;
+ private_key_t *private;
+
+ if (auth)
+ {
+ id = (identification_t*)auth->get(auth, AUTH_RULE_IDENTITY);
+ if (id)
+ {
+ private = lib->credmgr->get_private(lib->credmgr, KEY_ANY, id, NULL);
+ if (private)
+ {
+ switch (private->get_type(private))
+ {
+ case KEY_RSA:
+ method = AUTH_RSA;
+ break;
+ case KEY_ECDSA:
+ switch (private->get_keysize(private))
+ {
+ case 256:
+ method = AUTH_ECDSA_256;
+ break;
+ case 384:
+ method = AUTH_ECDSA_384;
+ break;
+ case 521:
+ method = AUTH_ECDSA_521;
+ break;
+ default:
+ DBG1(DBG_IKE, "%d bit ECDSA private key size not "
+ "supported", private->get_keysize(private));
+ break;
+ }
+ break;
+ default:
+ DBG1(DBG_IKE, "private key of type %N not supported",
+ key_type_names, private->get_type(private));
+ break;
+ }
+ private->destroy(private);
+ }
+ else
+ {
+ DBG1(DBG_IKE, "no private key found for '%Y'", id);
+ }
+ }
+ }
+ return method;
+}
+
+/**
+ * Calculate authentication method from a peer config
+ */
+static auth_method_t calc_auth_method(private_phase1_t *this,
+ peer_cfg_t *peer_cfg)
+{
+ auth_class_t i1, i2, r1, r2;
+
+ get_auth_class(peer_cfg, this->initiator, &i1, &i2);
+ get_auth_class(peer_cfg, !this->initiator, &r1, &r2);
+
+ if (i1 == AUTH_CLASS_PUBKEY && r1 == AUTH_CLASS_PUBKEY)
+ {
+ if (i2 == AUTH_CLASS_ANY && r2 == AUTH_CLASS_ANY)
+ {
+ /* for any pubkey method, return RSA */
+ return AUTH_RSA;
+ }
+ if (i2 == AUTH_CLASS_XAUTH)
+ {
+ return AUTH_XAUTH_INIT_RSA;
+ }
+ if (r2 == AUTH_CLASS_XAUTH)
+ {
+ return AUTH_XAUTH_RESP_RSA;
+ }
+ }
+ if (i1 == AUTH_CLASS_PSK && r1 == AUTH_CLASS_PSK)
+ {
+ if (i2 == AUTH_CLASS_ANY && r2 == AUTH_CLASS_ANY)
+ {
+ return AUTH_PSK;
+ }
+ if (i2 == AUTH_CLASS_XAUTH)
+ {
+ return AUTH_XAUTH_INIT_PSK;
+ }
+ if (r2 == AUTH_CLASS_XAUTH)
+ {
+ return AUTH_XAUTH_RESP_PSK;
+ }
+ }
+ if (i1 == AUTH_CLASS_XAUTH && r1 == AUTH_CLASS_PUBKEY &&
+ i2 == AUTH_CLASS_ANY && r2 == AUTH_CLASS_ANY)
+ {
+ return AUTH_HYBRID_INIT_RSA;
+ }
+ return AUTH_NONE;
+}
+
+METHOD(phase1_t, get_auth_method, auth_method_t,
+ private_phase1_t *this, peer_cfg_t *peer_cfg)
+{
+ auth_method_t method;
+
+ method = calc_auth_method(this, peer_cfg);
+ if (method == AUTH_RSA)
+ {
+ return get_pubkey_method(this, get_auth_cfg(peer_cfg, TRUE));
+ }
+ return method;
+}
+
+/**
+ * Check if a peer config can be used with a given auth method
+ */
+static bool check_auth_method(private_phase1_t *this, peer_cfg_t *peer_cfg,
+ auth_method_t given)
+{
+ auth_method_t method;
+
+ method = calc_auth_method(this, peer_cfg);
+ switch (given)
+ {
+ case AUTH_ECDSA_256:
+ case AUTH_ECDSA_384:
+ case AUTH_ECDSA_521:
+ return method == AUTH_RSA;
+ default:
+ return method == given;
+ }
+}
+
+METHOD(phase1_t, select_config, peer_cfg_t*,
+ private_phase1_t *this, auth_method_t method, bool aggressive,
+ identification_t *id)
+{
+ enumerator_t *enumerator;
+ peer_cfg_t *current;
+ host_t *me, *other;
+
+ if (this->peer_cfg)
+ { /* try to find an alternative config */
+ if (this->candidates->remove_first(this->candidates,
+ (void**)&current) != SUCCESS)
+ {
+ DBG1(DBG_CFG, "no alternative config found");
+ return NULL;
+ }
+ DBG1(DBG_CFG, "switching to peer config '%s'",
+ current->get_name(current));
+ return current;
+ }
+
+ me = this->ike_sa->get_my_host(this->ike_sa);
+ other = this->ike_sa->get_other_host(this->ike_sa);
+ DBG1(DBG_CFG, "looking for %N peer configs matching %H...%H[%Y]",
+ auth_method_names, method, me, other, id);
+ enumerator = charon->backends->create_peer_cfg_enumerator(charon->backends,
+ me, other, NULL, id, IKEV1);
+ while (enumerator->enumerate(enumerator, &current))
+ {
+ if (check_auth_method(this, current, method) &&
+ current->use_aggressive(current) == aggressive)
+ {
+ current->get_ref(current);
+ if (!this->peer_cfg)
+ {
+ this->peer_cfg = current;
+ }
+ else
+ {
+ this->candidates->insert_last(this->candidates, current);
+ }
+ }
+ }
+ enumerator->destroy(enumerator);
+
+ if (this->peer_cfg)
+ {
+ DBG1(DBG_CFG, "selected peer config \"%s\"",
+ this->peer_cfg->get_name(this->peer_cfg));
+ return this->peer_cfg->get_ref(this->peer_cfg);
+ }
+ DBG1(DBG_IKE, "no peer config found");
+ return NULL;
+}
+
+METHOD(phase1_t, get_id, identification_t*,
+ private_phase1_t *this, peer_cfg_t *peer_cfg, bool local)
+{
+ identification_t *id = NULL;
+ auth_cfg_t *auth;
+
+ auth = get_auth_cfg(peer_cfg, local);
+ if (auth)
+ {
+ id = auth->get(auth, AUTH_RULE_IDENTITY);
+ if (local && (!id || id->get_type(id) == ID_ANY))
+ { /* no ID configured, use local IP address */
+ host_t *me;
+
+ me = this->ike_sa->get_my_host(this->ike_sa);
+ if (!me->is_anyaddr(me))
+ {
+ id = identification_create_from_sockaddr(me->get_sockaddr(me));
+ auth->add(auth, AUTH_RULE_IDENTITY, id);
+ }
+ }
+ }
+ return id;
+}
+
+METHOD(phase1_t, has_virtual_ip, bool,
+ private_phase1_t *this, peer_cfg_t *peer_cfg)
+{
+ enumerator_t *enumerator;
+ bool found = FALSE;
+ host_t *host;
+
+ enumerator = peer_cfg->create_virtual_ip_enumerator(peer_cfg);
+ found = enumerator->enumerate(enumerator, &host);
+ enumerator->destroy(enumerator);
+
+ return found;
+}
+
+METHOD(phase1_t, has_pool, bool,
+ private_phase1_t *this, peer_cfg_t *peer_cfg)
+{
+ enumerator_t *enumerator;
+ bool found = FALSE;
+ char *pool;
+
+ enumerator = peer_cfg->create_pool_enumerator(peer_cfg);
+ found = enumerator->enumerate(enumerator, &pool);
+ enumerator->destroy(enumerator);
+
+ return found;
+}
+
+METHOD(phase1_t, save_sa_payload, bool,
+ private_phase1_t *this, message_t *message)
+{
+ enumerator_t *enumerator;
+ payload_t *payload, *sa = NULL;
+ chunk_t data;
+ size_t offset = IKE_HEADER_LENGTH;
+
+ enumerator = message->create_payload_enumerator(message);
+ while (enumerator->enumerate(enumerator, &payload))
+ {
+ if (payload->get_type(payload) == SECURITY_ASSOCIATION_V1)
+ {
+ sa = payload;
+ break;
+ }
+ else
+ {
+ offset += payload->get_length(payload);
+ }
+ }
+ enumerator->destroy(enumerator);
+
+ data = message->get_packet_data(message);
+ if (sa && data.len >= offset + sa->get_length(sa))
+ {
+ /* Get SA payload without 4 byte fixed header */
+ data = chunk_skip(data, offset);
+ data.len = sa->get_length(sa);
+ data = chunk_skip(data, 4);
+ this->sa_payload = chunk_clone(data);
+ return TRUE;
+ }
+ DBG1(DBG_IKE, "unable to extract SA payload encoding");
+ return FALSE;
+}
+
+METHOD(phase1_t, add_nonce_ke, bool,
+ private_phase1_t *this, message_t *message)
+{
+ nonce_payload_t *nonce_payload;
+ ke_payload_t *ke_payload;
+ nonce_gen_t *nonceg;
+ chunk_t nonce;
+
+ ke_payload = ke_payload_create_from_diffie_hellman(KEY_EXCHANGE_V1, this->dh);
+ message->add_payload(message, &ke_payload->payload_interface);
+
+ nonceg = this->keymat->keymat.create_nonce_gen(&this->keymat->keymat);
+ if (!nonceg)
+ {
+ DBG1(DBG_IKE, "no nonce generator found to create nonce");
+ return FALSE;
+ }
+ if (!nonceg->allocate_nonce(nonceg, NONCE_SIZE, &nonce))
+ {
+ DBG1(DBG_IKE, "nonce allocation failed");
+ nonceg->destroy(nonceg);
+ return FALSE;
+ }
+ nonceg->destroy(nonceg);
+
+ nonce_payload = nonce_payload_create(NONCE_V1);
+ nonce_payload->set_nonce(nonce_payload, nonce);
+ message->add_payload(message, &nonce_payload->payload_interface);
+
+ if (this->initiator)
+ {
+ this->nonce_i = nonce;
+ }
+ else
+ {
+ this->nonce_r = nonce;
+ }
+ return TRUE;
+}
+
+METHOD(phase1_t, get_nonce_ke, bool,
+ private_phase1_t *this, message_t *message)
+{
+ nonce_payload_t *nonce_payload;
+ ke_payload_t *ke_payload;
+
+ ke_payload = (ke_payload_t*)message->get_payload(message, KEY_EXCHANGE_V1);
+ if (!ke_payload)
+ {
+ DBG1(DBG_IKE, "KE payload missing in message");
+ return FALSE;
+ }
+ this->dh_value = chunk_clone(ke_payload->get_key_exchange_data(ke_payload));
+ this->dh->set_other_public_value(this->dh, this->dh_value);
+
+ nonce_payload = (nonce_payload_t*)message->get_payload(message, NONCE_V1);
+ if (!nonce_payload)
+ {
+ DBG1(DBG_IKE, "NONCE payload missing in message");
+ return FALSE;
+ }
+
+ if (this->initiator)
+ {
+ this->nonce_r = nonce_payload->get_nonce(nonce_payload);
+ }
+ else
+ {
+ this->nonce_i = nonce_payload->get_nonce(nonce_payload);
+ }
+ return TRUE;
+}
+
+METHOD(phase1_t, destroy, void,
+ private_phase1_t *this)
+{
+ DESTROY_IF(this->peer_cfg);
+ this->candidates->destroy_offset(this->candidates,
+ offsetof(peer_cfg_t, destroy));
+ chunk_free(&this->sa_payload);
+ DESTROY_IF(this->dh);
+ free(this->dh_value.ptr);
+ free(this->nonce_i.ptr);
+ free(this->nonce_r.ptr);
+ free(this);
+}
+
+/**
+ * See header
+ */
+phase1_t *phase1_create(ike_sa_t *ike_sa, bool initiator)
+{
+ private_phase1_t *this;
+
+ INIT(this,
+ .public = {
+ .create_hasher = _create_hasher,
+ .create_dh = _create_dh,
+ .derive_keys = _derive_keys,
+ .get_auth_method = _get_auth_method,
+ .get_id = _get_id,
+ .select_config = _select_config,
+ .has_virtual_ip = _has_virtual_ip,
+ .has_pool = _has_pool,
+ .verify_auth = _verify_auth,
+ .build_auth = _build_auth,
+ .save_sa_payload = _save_sa_payload,
+ .add_nonce_ke = _add_nonce_ke,
+ .get_nonce_ke = _get_nonce_ke,
+ .destroy = _destroy,
+ },
+ .candidates = linked_list_create(),
+ .ike_sa = ike_sa,
+ .initiator = initiator,
+ .keymat = (keymat_v1_t*)ike_sa->get_keymat(ike_sa),
+ );
+
+ return &this->public;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 15:00:08 +0000