/*
- * Copyright (C) 2011 Tobias Brunner
- * Hochschule fuer Technik Rapperswil
+ * Copyright (C) 2011-2012 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
*
* Copyright (C) 2011 Martin Willi
* Copyright (C) 2011 revosec AG
#include <sa/ikev1/tasks/informational.h>
#include <sa/ikev1/tasks/isakmp_delete.h>
#include <processing/jobs/adopt_children_job.h>
+#include <processing/jobs/delete_ike_sa_job.h>
typedef struct private_main_mode_t private_main_mode_t;
/**
* Negotiated SA lifetime
*/
- u_int32_t lifetime;
+ uint32_t lifetime;
/**
* Negotiated authentication method
/**
* Set IKE_SA to established state
*/
-static void establish(private_main_mode_t *this)
+static bool establish(private_main_mode_t *this)
{
+ if (!charon->bus->authorize(charon->bus, TRUE))
+ {
+ DBG1(DBG_IKE, "final authorization hook forbids IKE_SA, cancelling");
+ return FALSE;
+ }
+
DBG0(DBG_IKE, "IKE_SA %s[%d] established between %H[%Y]...%H[%Y]",
this->ike_sa->get_name(this->ike_sa),
this->ike_sa->get_unique_id(this->ike_sa),
this->ike_sa->set_state(this->ike_sa, IKE_ESTABLISHED);
charon->bus->ike_updown(charon->bus, this->ike_sa, TRUE);
+
+ return TRUE;
}
/**
enumerator = message->create_payload_enumerator(message);
while (enumerator->enumerate(enumerator, &payload))
{
- if (payload->get_type(payload) == NOTIFY_V1)
+ if (payload->get_type(payload) == PLV1_NOTIFY)
{
notify_payload_t *notify;
notify_type_t type;
{
notify_payload_t *notify;
ike_sa_id_t *ike_sa_id;
- u_int64_t spi_i, spi_r;
+ uint64_t spi_i, spi_r;
chunk_t spi;
- notify = notify_payload_create_from_protocol_and_type(NOTIFY_V1,
+ notify = notify_payload_create_from_protocol_and_type(PLV1_NOTIFY,
PROTO_IKE, type);
ike_sa_id = this->ike_sa->get_id(this->ike_sa);
spi_i = ike_sa_id->get_initiator_spi(ike_sa_id);
this->ike_sa->queue_task(this->ike_sa,
(task_t*)informational_create(this->ike_sa, notify));
/* cancel all active/passive tasks in favour of informational */
+ this->ike_sa->flush_queue(this->ike_sa,
+ this->initiator ? TASK_QUEUE_ACTIVE : TASK_QUEUE_PASSIVE);
return ALREADY_DONE;
}
this->ike_sa->queue_task(this->ike_sa,
(task_t*)isakmp_delete_create(this->ike_sa, TRUE));
/* cancel all active tasks in favour of informational */
+ this->ike_sa->flush_queue(this->ike_sa,
+ this->initiator ? TASK_QUEUE_ACTIVE : TASK_QUEUE_PASSIVE);
return ALREADY_DONE;
}
+/**
+ * Add an INITIAL_CONTACT notify if first contact with peer
+ */
+static void add_initial_contact(private_main_mode_t *this, message_t *message,
+ identification_t *idi)
+{
+ identification_t *idr;
+ host_t *host;
+ notify_payload_t *notify;
+ ike_sa_id_t *ike_sa_id;
+ uint64_t spi_i, spi_r;
+ chunk_t spi;
+
+ idr = this->ph1->get_id(this->ph1, this->peer_cfg, FALSE);
+ if (idr && !idr->contains_wildcards(idr))
+ {
+ if (this->peer_cfg->get_unique_policy(this->peer_cfg) != UNIQUE_NEVER)
+ {
+ host = this->ike_sa->get_other_host(this->ike_sa);
+ if (!charon->ike_sa_manager->has_contact(charon->ike_sa_manager,
+ idi, idr, host->get_family(host)))
+ {
+ notify = notify_payload_create_from_protocol_and_type(
+ PLV1_NOTIFY, PROTO_IKE, INITIAL_CONTACT_IKEV1);
+ ike_sa_id = this->ike_sa->get_id(this->ike_sa);
+ spi_i = ike_sa_id->get_initiator_spi(ike_sa_id);
+ spi_r = ike_sa_id->get_responder_spi(ike_sa_id);
+ spi = chunk_cata("cc", chunk_from_thing(spi_i),
+ chunk_from_thing(spi_r));
+ notify->set_spi_data(notify, spi);
+ message->add_payload(message, (payload_t*)notify);
+ }
+ }
+ }
+}
+
METHOD(task_t, build_i, status_t,
private_main_mode_t *this, message_t *message)
{
this->lifetime += this->peer_cfg->get_over_time(this->peer_cfg);
proposals = this->ike_cfg->get_proposals(this->ike_cfg);
sa_payload = sa_payload_create_from_proposals_v1(proposals,
- this->lifetime, 0, this->method, MODE_NONE, FALSE);
+ this->lifetime, 0, this->method, MODE_NONE,
+ ENCAP_NONE, 0);
proposals->destroy_offset(proposals, offsetof(proposal_t, destroy));
message->add_payload(message, &sa_payload->payload_interface);
}
case MM_SA:
{
- u_int16_t group;
+ uint16_t group;
- if (!this->ph1->create_hasher(this->ph1, this->proposal))
+ if (!this->ph1->create_hasher(this->ph1))
{
return send_notify(this, NO_PROPOSAL_CHOSEN);
}
identification_t *id;
id = this->ph1->get_id(this->ph1, this->peer_cfg, TRUE);
- if (!id)
- {
- DBG1(DBG_CFG, "own identity not known");
- return send_notify(this, INVALID_ID_INFORMATION);
- }
this->ike_sa->set_my_id(this->ike_sa, id->clone(id));
- id_payload = id_payload_create_from_identification(ID_V1, id);
+ id_payload = id_payload_create_from_identification(PLV1_ID, id);
message->add_payload(message, &id_payload->payload_interface);
if (!this->ph1->build_auth(this->ph1, this->method, message,
id_payload->get_encoded(id_payload)))
{
+ charon->bus->alert(charon->bus, ALERT_LOCAL_AUTH_FAILED);
return send_notify(this, AUTHENTICATION_FAILED);
}
+ add_initial_contact(this, message, id);
+
this->state = MM_AUTH;
return NEED_MORE;
}
{
linked_list_t *list;
sa_payload_t *sa_payload;
+ proposal_selection_flag_t flags = 0;
this->ike_cfg = this->ike_sa->get_ike_cfg(this->ike_sa);
DBG0(DBG_IKE, "%H is initiating a Main Mode IKE_SA",
message->get_source(message), TRUE);
sa_payload = (sa_payload_t*)message->get_payload(message,
- SECURITY_ASSOCIATION_V1);
+ PLV1_SECURITY_ASSOCIATION);
if (!sa_payload)
{
DBG1(DBG_IKE, "SA payload missing");
}
list = sa_payload->get_proposals(sa_payload);
+ if (!this->ike_sa->supports_extension(this->ike_sa, EXT_STRONGSWAN)
+ && !lib->settings->get_bool(lib->settings,
+ "%s.accept_private_algs", FALSE, lib->ns))
+ {
+ flags |= PROPOSAL_SKIP_PRIVATE;
+ }
+ if (!lib->settings->get_bool(lib->settings,
+ "%s.prefer_configured_proposals", TRUE, lib->ns))
+ {
+ flags |= PROPOSAL_PREFER_SUPPLIED;
+ }
this->proposal = this->ike_cfg->select_proposal(this->ike_cfg,
- list, FALSE);
+ list, flags);
list->destroy_offset(list, offsetof(proposal_t, destroy));
if (!this->proposal)
{
DBG1(DBG_IKE, "no proposal found");
return send_notify(this, NO_PROPOSAL_CHOSEN);
}
+ this->ike_sa->set_proposal(this->ike_sa, this->proposal);
this->method = sa_payload->get_auth_method(sa_payload);
- this->lifetime = sa_payload->get_lifetime(sa_payload);
+ this->lifetime = sa_payload->get_lifetime(sa_payload,
+ this->proposal);
this->state = MM_SA;
return NEED_MORE;
}
case MM_SA:
{
- u_int16_t group;
+ uint16_t group;
- if (!this->ph1->create_hasher(this->ph1, this->proposal))
+ if (!this->ph1->create_hasher(this->ph1))
{
return send_notify(this, INVALID_KEY_INFORMATION);
}
id_payload_t *id_payload;
identification_t *id;
- id_payload = (id_payload_t*)message->get_payload(message, ID_V1);
+ id_payload = (id_payload_t*)message->get_payload(message, PLV1_ID);
if (!id_payload)
{
DBG1(DBG_IKE, "IDii payload missing");
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
return send_notify(this, INVALID_PAYLOAD_TYPE);
}
-
id = id_payload->get_identification(id_payload);
this->ike_sa->set_other_id(this->ike_sa, id);
- this->peer_cfg = this->ph1->select_config(this->ph1,
- this->method, FALSE, id);
- if (!this->peer_cfg)
+
+ while (TRUE)
{
- DBG1(DBG_IKE, "no peer config found");
- return send_notify(this, AUTHENTICATION_FAILED);
+ DESTROY_IF(this->peer_cfg);
+ this->peer_cfg = this->ph1->select_config(this->ph1,
+ this->method, FALSE, id);
+ if (!this->peer_cfg)
+ {
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
+ return send_notify(this, AUTHENTICATION_FAILED);
+ }
+ this->ike_sa->set_peer_cfg(this->ike_sa, this->peer_cfg);
+
+ if (this->ph1->verify_auth(this->ph1, this->method, message,
+ id_payload->get_encoded(id_payload)))
+ {
+ break;
+ }
}
- this->ike_sa->set_peer_cfg(this->ike_sa, this->peer_cfg);
- if (!this->ph1->verify_auth(this->ph1, this->method, message,
- id_payload->get_encoded(id_payload)))
+ if (!charon->bus->authorize(charon->bus, FALSE))
{
+ DBG1(DBG_IKE, "Main Mode authorization hook forbids IKE_SA, "
+ "cancelling");
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
return send_notify(this, AUTHENTICATION_FAILED);
}
+
this->state = MM_AUTH;
if (has_notify_errors(this, message))
{
sa_payload_t *sa_payload;
sa_payload = sa_payload_create_from_proposal_v1(this->proposal,
- this->lifetime, 0, this->method, MODE_NONE, FALSE);
+ this->lifetime, 0, this->method, MODE_NONE,
+ ENCAP_NONE, 0);
message->add_payload(message, &sa_payload->payload_interface);
return NEED_MORE;
{
return send_notify(this, INVALID_KEY_INFORMATION);
}
- if (!this->ph1->derive_keys(this->ph1, this->peer_cfg, this->method,
- this->proposal))
+ if (!this->ph1->derive_keys(this->ph1, this->peer_cfg, this->method))
{
return send_notify(this, INVALID_KEY_INFORMATION);
}
{
id_payload_t *id_payload;
identification_t *id;
+ adopt_children_job_t *job = NULL;
+ xauth_t *xauth = NULL;
id = this->ph1->get_id(this->ph1, this->peer_cfg, TRUE);
- if (!id)
- {
- DBG1(DBG_CFG, "own identity not known");
- return send_notify(this, INVALID_ID_INFORMATION);
- }
this->ike_sa->set_my_id(this->ike_sa, id->clone(id));
- id_payload = id_payload_create_from_identification(ID_V1, id);
+ id_payload = id_payload_create_from_identification(PLV1_ID, id);
message->add_payload(message, &id_payload->payload_interface);
if (!this->ph1->build_auth(this->ph1, this->method, message,
id_payload->get_encoded(id_payload)))
{
+ charon->bus->alert(charon->bus, ALERT_LOCAL_AUTH_FAILED);
return send_notify(this, AUTHENTICATION_FAILED);
}
+
switch (this->method)
{
case AUTH_XAUTH_INIT_PSK:
case AUTH_XAUTH_INIT_RSA:
case AUTH_HYBRID_INIT_RSA:
- this->ike_sa->queue_task(this->ike_sa,
- (task_t*)xauth_create(this->ike_sa, TRUE));
- return SUCCESS;
+ xauth = xauth_create(this->ike_sa, TRUE);
+ this->ike_sa->queue_task(this->ike_sa, (task_t*)xauth);
+ break;
case AUTH_XAUTH_RESP_PSK:
case AUTH_XAUTH_RESP_RSA:
case AUTH_HYBRID_RESP_RSA:
- /* TODO-IKEv1: not yet supported */
- return FAILED;
+ /* wait for XAUTH request */
+ break;
default:
- establish(this);
- lib->processor->queue_job(lib->processor, (job_t*)
- adopt_children_job_create(
- this->ike_sa->get_id(this->ike_sa)));
- return SUCCESS;
+ if (charon->ike_sa_manager->check_uniqueness(
+ charon->ike_sa_manager, this->ike_sa, FALSE))
+ {
+ DBG1(DBG_IKE, "cancelling Main Mode due to uniqueness "
+ "policy");
+ return send_notify(this, AUTHENTICATION_FAILED);
+ }
+ if (!establish(this))
+ {
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
+ return send_notify(this, AUTHENTICATION_FAILED);
+ }
+ job = adopt_children_job_create(
+ this->ike_sa->get_id(this->ike_sa));
+ break;
+ }
+ if (this->ph1->has_virtual_ip(this->ph1, this->peer_cfg))
+ {
+ if (this->peer_cfg->use_pull_mode(this->peer_cfg))
+ {
+ this->ike_sa->queue_task(this->ike_sa,
+ (task_t*)mode_config_create(this->ike_sa, TRUE, TRUE));
+ }
}
+ else if (this->ph1->has_pool(this->ph1, this->peer_cfg))
+ {
+ if (!this->peer_cfg->use_pull_mode(this->peer_cfg))
+ {
+ if (job)
+ {
+ job->queue_task(job, (task_t*)
+ mode_config_create(this->ike_sa, TRUE, FALSE));
+ }
+ else if (xauth)
+ {
+ xauth->queue_mode_config_push(xauth);
+ }
+ else
+ {
+ this->ike_sa->queue_task(this->ike_sa, (task_t*)
+ mode_config_create(this->ike_sa, TRUE, FALSE));
+ }
+ }
+ }
+ if (job)
+ {
+ lib->processor->queue_job(lib->processor, (job_t*)job);
+ }
+ return SUCCESS;
}
default:
return FAILED;
}
}
+/**
+ * Schedule a timeout for the IKE_SA should it not establish
+ */
+static void schedule_timeout(ike_sa_t *ike_sa)
+{
+ job_t *job;
+
+ job = (job_t*)delete_ike_sa_job_create(ike_sa->get_id(ike_sa), FALSE);
+ lib->scheduler->schedule_job(lib->scheduler, job, HALF_OPEN_IKE_SA_TIMEOUT);
+}
+
METHOD(task_t, process_i, status_t,
private_main_mode_t *this, message_t *message)
{
linked_list_t *list;
sa_payload_t *sa_payload;
auth_method_t method;
- u_int32_t lifetime;
+ proposal_selection_flag_t flags = 0;
+ uint32_t lifetime;
sa_payload = (sa_payload_t*)message->get_payload(message,
- SECURITY_ASSOCIATION_V1);
+ PLV1_SECURITY_ASSOCIATION);
if (!sa_payload)
{
DBG1(DBG_IKE, "SA payload missing");
return send_notify(this, INVALID_PAYLOAD_TYPE);
}
list = sa_payload->get_proposals(sa_payload);
+ if (!this->ike_sa->supports_extension(this->ike_sa, EXT_STRONGSWAN)
+ && !lib->settings->get_bool(lib->settings,
+ "%s.accept_private_algs", FALSE, lib->ns))
+ {
+ flags |= PROPOSAL_SKIP_PRIVATE;
+ }
this->proposal = this->ike_cfg->select_proposal(this->ike_cfg,
- list, FALSE);
+ list, flags);
list->destroy_offset(list, offsetof(proposal_t, destroy));
if (!this->proposal)
{
DBG1(DBG_IKE, "no proposal found");
return send_notify(this, NO_PROPOSAL_CHOSEN);
}
+ this->ike_sa->set_proposal(this->ike_sa, this->proposal);
- lifetime = sa_payload->get_lifetime(sa_payload);
+ lifetime = sa_payload->get_lifetime(sa_payload, this->proposal);
if (lifetime != this->lifetime)
{
DBG1(DBG_IKE, "received lifetime %us does not match configured "
{
return send_notify(this, INVALID_PAYLOAD_TYPE);
}
- if (!this->ph1->derive_keys(this->ph1, this->peer_cfg,
- this->method, this->proposal))
+ if (!this->ph1->derive_keys(this->ph1, this->peer_cfg, this->method))
{
return send_notify(this, INVALID_KEY_INFORMATION);
}
id_payload_t *id_payload;
identification_t *id, *cid;
- id_payload = (id_payload_t*)message->get_payload(message, ID_V1);
+ id_payload = (id_payload_t*)message->get_payload(message, PLV1_ID);
if (!id_payload)
{
DBG1(DBG_IKE, "IDir payload missing");
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
return send_delete(this);
}
id = id_payload->get_identification(id_payload);
{
DBG1(DBG_IKE, "IDir '%Y' does not match to '%Y'", id, cid);
id->destroy(id);
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
return send_delete(this);
}
this->ike_sa->set_other_id(this->ike_sa, id);
if (!this->ph1->verify_auth(this->ph1, this->method, message,
id_payload->get_encoded(id_payload)))
{
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
return send_delete(this);
}
-
- if (this->peer_cfg->get_virtual_ip(this->peer_cfg))
+ if (!charon->bus->authorize(charon->bus, FALSE))
{
- this->ike_sa->queue_task(this->ike_sa,
- (task_t*)mode_config_create(this->ike_sa, TRUE));
+ DBG1(DBG_IKE, "Main Mode authorization hook forbids IKE_SA, "
+ "cancelling");
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
+ return send_delete(this);
}
switch (this->method)
case AUTH_XAUTH_INIT_RSA:
case AUTH_HYBRID_INIT_RSA:
/* wait for XAUTH request */
- return SUCCESS;
+ schedule_timeout(this->ike_sa);
+ break;
case AUTH_XAUTH_RESP_PSK:
case AUTH_XAUTH_RESP_RSA:
case AUTH_HYBRID_RESP_RSA:
- /* TODO-IKEv1: not yet */
- return FAILED;
+ this->ike_sa->queue_task(this->ike_sa,
+ (task_t*)xauth_create(this->ike_sa, TRUE));
+ break;
default:
- establish(this);
- return SUCCESS;
+ if (charon->ike_sa_manager->check_uniqueness(
+ charon->ike_sa_manager, this->ike_sa, FALSE))
+ {
+ DBG1(DBG_IKE, "cancelling Main Mode due to uniqueness "
+ "policy");
+ return send_delete(this);
+ }
+ if (!establish(this))
+ {
+ charon->bus->alert(charon->bus, ALERT_PEER_AUTH_FAILED);
+ return send_delete(this);
+ }
+ break;
+ }
+ /* check for and prepare mode config push/pull */
+ if (this->ph1->has_virtual_ip(this->ph1, this->peer_cfg))
+ {
+ if (this->peer_cfg->use_pull_mode(this->peer_cfg))
+ {
+ this->ike_sa->queue_task(this->ike_sa,
+ (task_t*)mode_config_create(this->ike_sa, TRUE, TRUE));
+ }
+ else
+ {
+ schedule_timeout(this->ike_sa);
+ }
+ }
+ else if (this->ph1->has_pool(this->ph1, this->peer_cfg))
+ {
+ if (this->peer_cfg->use_pull_mode(this->peer_cfg))
+ {
+ schedule_timeout(this->ike_sa);
+ }
+ else
+ {
+ this->ike_sa->queue_task(this->ike_sa,
+ (task_t*)mode_config_create(this->ike_sa, TRUE, FALSE));
+ }
}
+ return SUCCESS;
}
default:
return FAILED;
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