Moving charon to libcharon.

This commit is contained in:
Tobias Brunner
2010-03-19 13:34:52 +01:00
parent 7c11d10eb8
commit 08c5572602
480 changed files with 0 additions and 0 deletions
+26
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@@ -0,0 +1,26 @@
INCLUDES = -I$(top_srcdir)/src/libstrongswan -I$(top_srcdir)/src/charon -I$(top_srcdir)/src/stroke
AM_CFLAGS = \
-rdynamic \
-DIPSEC_CONFDIR=\"${sysconfdir}\" \
-DIPSEC_PIDDIR=\"${piddir}\"
if MONOLITHIC
noinst_LTLIBRARIES = libstrongswan-stroke.la
else
plugin_LTLIBRARIES = libstrongswan-stroke.la
endif
libstrongswan_stroke_la_SOURCES = \
stroke_plugin.h stroke_plugin.c \
stroke_socket.h stroke_socket.c \
stroke_config.h stroke_config.c \
stroke_control.h stroke_control.c \
stroke_cred.h stroke_cred.c \
stroke_ca.h stroke_ca.c \
stroke_attribute.h stroke_attribute.c \
stroke_list.h stroke_list.c \
stroke_shared_key.h stroke_shared_key.c
libstrongswan_stroke_la_LDFLAGS = -module -avoid-version
@@ -0,0 +1,546 @@
/*
* Copyright (C) 2008 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 "stroke_attribute.h"
#include <daemon.h>
#include <utils/linked_list.h>
#include <utils/hashtable.h>
#include <threading/mutex.h>
#define POOL_LIMIT (sizeof(uintptr_t)*8)
typedef struct private_stroke_attribute_t private_stroke_attribute_t;
/**
* private data of stroke_attribute
*/
struct private_stroke_attribute_t {
/**
* public functions
*/
stroke_attribute_t public;
/**
* list of pools, contains pool_t
*/
linked_list_t *pools;
/**
* mutex to lock access to pools
*/
mutex_t *mutex;
};
typedef struct {
/** name of the pool */
char *name;
/** base address of the pool */
host_t *base;
/** size of the pool */
int size;
/** next unused address */
int unused;
/** hashtable [identity => offset], for online leases */
hashtable_t *online;
/** hashtable [identity => offset], for offline leases */
hashtable_t *offline;
/** hashtable [identity => identity], handles identity references */
hashtable_t *ids;
} pool_t;
/**
* hashtable hash function for identities
*/
static u_int id_hash(identification_t *id)
{
return chunk_hash(id->get_encoding(id));
}
/**
* hashtable equals function for identities
*/
static bool id_equals(identification_t *a, identification_t *b)
{
return a->equals(a, b);
}
/**
* destroy a pool_t
*/
static void pool_destroy(pool_t *this)
{
enumerator_t *enumerator;
identification_t *id;
enumerator = this->ids->create_enumerator(this->ids);
while (enumerator->enumerate(enumerator, &id, NULL))
{
id->destroy(id);
}
enumerator->destroy(enumerator);
this->ids->destroy(this->ids);
this->online->destroy(this->online);
this->offline->destroy(this->offline);
DESTROY_IF(this->base);
free(this->name);
free(this);
}
/**
* find a pool by name
*/
static pool_t *find_pool(private_stroke_attribute_t *this, char *name)
{
enumerator_t *enumerator;
pool_t *current, *found = NULL;
enumerator = this->pools->create_enumerator(this->pools);
while (enumerator->enumerate(enumerator, &current))
{
if (streq(name, current->name))
{
found = current;
break;
}
}
enumerator->destroy(enumerator);
return found;
}
/**
* convert an pool offset to an address
*/
host_t* offset2host(pool_t *pool, int offset)
{
chunk_t addr;
host_t *host;
u_int32_t *pos;
offset--;
if (offset > pool->size)
{
return NULL;
}
addr = chunk_clone(pool->base->get_address(pool->base));
if (pool->base->get_family(pool->base) == AF_INET6)
{
pos = (u_int32_t*)(addr.ptr + 12);
}
else
{
pos = (u_int32_t*)addr.ptr;
}
*pos = htonl(offset + ntohl(*pos));
host = host_create_from_chunk(pool->base->get_family(pool->base), addr, 0);
free(addr.ptr);
return host;
}
/**
* convert a host to a pool offset
*/
int host2offset(pool_t *pool, host_t *addr)
{
chunk_t host, base;
u_int32_t hosti, basei;
if (addr->get_family(addr) != pool->base->get_family(pool->base))
{
return -1;
}
host = addr->get_address(addr);
base = pool->base->get_address(pool->base);
if (addr->get_family(addr) == AF_INET6)
{
/* only look at last /32 block */
if (!memeq(host.ptr, base.ptr, 12))
{
return -1;
}
host = chunk_skip(host, 12);
base = chunk_skip(base, 12);
}
hosti = ntohl(*(u_int32_t*)(host.ptr));
basei = ntohl(*(u_int32_t*)(base.ptr));
if (hosti > basei + pool->size)
{
return -1;
}
return hosti - basei + 1;
}
/**
* Implementation of attribute_provider_t.acquire_address
*/
static host_t* acquire_address(private_stroke_attribute_t *this,
char *name, identification_t *id,
host_t *requested)
{
pool_t *pool;
uintptr_t offset = 0;
enumerator_t *enumerator;
identification_t *old_id;
this->mutex->lock(this->mutex);
pool = find_pool(this, name);
while (pool)
{
/* handle %config case by mirroring requested address */
if (pool->size == 0)
{
this->mutex->unlock(this->mutex);
return requested->clone(requested);
}
if (!requested->is_anyaddr(requested) &&
requested->get_family(requested) !=
pool->base->get_family(pool->base))
{
DBG1(DBG_CFG, "IP pool address family mismatch");
break;
}
/* check for a valid offline lease, refresh */
offset = (uintptr_t)pool->offline->remove(pool->offline, id);
if (offset)
{
id = pool->ids->get(pool->ids, id);
if (id)
{
DBG1(DBG_CFG, "reassigning offline lease to '%Y'", id);
pool->online->put(pool->online, id, (void*)offset);
break;
}
}
/* check for a valid online lease, reassign */
offset = (uintptr_t)pool->online->get(pool->online, id);
if (offset && offset == host2offset(pool, requested))
{
DBG1(DBG_CFG, "reassigning online lease to '%Y'", id);
break;
}
if (pool->unused < pool->size)
{
/* assigning offset, starting by 1. Handling 0 in hashtable
* is difficult. */
offset = ++pool->unused;
id = id->clone(id);
pool->ids->put(pool->ids, id, id);
pool->online->put(pool->online, id, (void*)offset);
DBG1(DBG_CFG, "assigning new lease to '%Y'", id);
break;
}
/* no more addresses, replace the first found offline lease */
enumerator = pool->offline->create_enumerator(pool->offline);
if (enumerator->enumerate(enumerator, &old_id, &offset))
{
offset = (uintptr_t)pool->offline->remove(pool->offline, old_id);
if (offset)
{
/* destroy reference to old ID */
old_id = pool->ids->remove(pool->ids, old_id);
DBG1(DBG_CFG, "reassigning existing offline lease by '%Y' to '%Y'",
old_id, id);
if (old_id)
{
old_id->destroy(old_id);
}
id = id->clone(id);
pool->ids->put(pool->ids, id, id);
pool->online->put(pool->online, id, (void*)offset);
enumerator->destroy(enumerator);
break;
}
}
enumerator->destroy(enumerator);
DBG1(DBG_CFG, "pool '%s' is full, unable to assign address", name);
break;
}
this->mutex->unlock(this->mutex);
if (offset)
{
return offset2host(pool, offset);
}
return NULL;
}
/**
* Implementation of attribute_provider_t.release_address
*/
static bool release_address(private_stroke_attribute_t *this,
char *name, host_t *address, identification_t *id)
{
pool_t *pool;
bool found = FALSE;
uintptr_t offset;
this->mutex->lock(this->mutex);
pool = find_pool(this, name);
if (pool)
{
if (pool->size != 0)
{
offset = (uintptr_t)pool->online->remove(pool->online, id);
if (offset)
{
id = pool->ids->get(pool->ids, id);
if (id)
{
DBG1(DBG_CFG, "lease %H by '%Y' went offline", address, id);
pool->offline->put(pool->offline, id, (void*)offset);
found = TRUE;
}
}
}
}
this->mutex->unlock(this->mutex);
return found;
}
/**
* Implementation of stroke_attribute_t.add_pool.
*/
static void add_pool(private_stroke_attribute_t *this, stroke_msg_t *msg)
{
if (msg->add_conn.other.sourceip_mask)
{
pool_t *pool;
pool = malloc_thing(pool_t);
pool->base = NULL;
pool->size = 0;
pool->unused = 0;
pool->name = strdup(msg->add_conn.name);
pool->online = hashtable_create((hashtable_hash_t)id_hash,
(hashtable_equals_t)id_equals, 16);
pool->offline = hashtable_create((hashtable_hash_t)id_hash,
(hashtable_equals_t)id_equals, 16);
pool->ids = hashtable_create((hashtable_hash_t)id_hash,
(hashtable_equals_t)id_equals, 16);
/* if %config, add an empty pool, otherwise */
if (msg->add_conn.other.sourceip)
{
u_int32_t bits;
int family;
DBG1(DBG_CFG, "adding virtual IP address pool '%s': %s/%d",
msg->add_conn.name, msg->add_conn.other.sourceip,
msg->add_conn.other.sourceip_mask);
pool->base = host_create_from_string(msg->add_conn.other.sourceip, 0);
if (!pool->base)
{
pool_destroy(pool);
DBG1(DBG_CFG, "virtual IP address invalid, discarded");
return;
}
family = pool->base->get_family(pool->base);
bits = (family == AF_INET ? 32 : 128) - msg->add_conn.other.sourceip_mask;
if (bits > POOL_LIMIT)
{
bits = POOL_LIMIT;
DBG1(DBG_CFG, "virtual IP pool to large, limiting to %s/%d",
msg->add_conn.other.sourceip,
(family == AF_INET ? 32 : 128) - bits);
}
pool->size = 1 << (bits);
if (pool->size > 2)
{ /* do not use first and last addresses of a block */
pool->unused++;
pool->size--;
}
}
this->mutex->lock(this->mutex);
this->pools->insert_last(this->pools, pool);
this->mutex->unlock(this->mutex);
}
}
/**
* Implementation of stroke_attribute_t.del_pool.
*/
static void del_pool(private_stroke_attribute_t *this, stroke_msg_t *msg)
{
enumerator_t *enumerator;
pool_t *pool;
this->mutex->lock(this->mutex);
enumerator = this->pools->create_enumerator(this->pools);
while (enumerator->enumerate(enumerator, &pool))
{
if (streq(msg->del_conn.name, pool->name))
{
this->pools->remove_at(this->pools, enumerator);
pool_destroy(pool);
break;
}
}
enumerator->destroy(enumerator);
this->mutex->unlock(this->mutex);
}
/**
* Pool enumerator filter function, converts pool_t to name, size, ...
*/
static bool pool_filter(void *mutex, pool_t **poolp, char **name,
void *d1, u_int *size, void *d2, u_int *online,
void *d3, u_int *offline)
{
pool_t *pool = *poolp;
*name = pool->name;
*size = pool->size;
*online = pool->online->get_count(pool->online);
*offline = pool->offline->get_count(pool->offline);
return TRUE;
}
/**
* Implementation of stroke_attribute_t.create_pool_enumerator
*/
static enumerator_t* create_pool_enumerator(private_stroke_attribute_t *this)
{
this->mutex->lock(this->mutex);
return enumerator_create_filter(this->pools->create_enumerator(this->pools),
(void*)pool_filter,
this->mutex, (void*)this->mutex->unlock);
}
/**
* lease enumerator
*/
typedef struct {
/** implemented enumerator interface */
enumerator_t public;
/** inner hash-table enumerator */
enumerator_t *inner;
/** enumerated pool */
pool_t *pool;
/** mutex to unlock on destruction */
mutex_t *mutex;
/** currently enumerated lease address */
host_t *current;
} lease_enumerator_t;
/**
* Implementation of lease_enumerator_t.enumerate
*/
static bool lease_enumerate(lease_enumerator_t *this, identification_t **id_out,
host_t **addr_out, bool *online)
{
identification_t *id;
uintptr_t offset;
DESTROY_IF(this->current);
this->current = NULL;
if (this->inner->enumerate(this->inner, &id, NULL))
{
offset = (uintptr_t)this->pool->online->get(this->pool->online, id);
if (offset)
{
*id_out = id;
*addr_out = this->current = offset2host(this->pool, offset);
*online = TRUE;
return TRUE;
}
offset = (uintptr_t)this->pool->offline->get(this->pool->offline, id);
if (offset)
{
*id_out = id;
*addr_out = this->current = offset2host(this->pool, offset);
*online = FALSE;
return TRUE;
}
}
return FALSE;
}
/**
* Implementation of lease_enumerator_t.destroy
*/
static void lease_enumerator_destroy(lease_enumerator_t *this)
{
DESTROY_IF(this->current);
this->inner->destroy(this->inner);
this->mutex->unlock(this->mutex);
free(this);
}
/**
* Implementation of stroke_attribute_t.create_lease_enumerator
*/
static enumerator_t* create_lease_enumerator(private_stroke_attribute_t *this,
char *pool)
{
lease_enumerator_t *enumerator;
this->mutex->lock(this->mutex);
enumerator = malloc_thing(lease_enumerator_t);
enumerator->pool = find_pool(this, pool);
if (!enumerator->pool)
{
this->mutex->unlock(this->mutex);
free(enumerator);
return NULL;
}
enumerator->public.enumerate = (void*)lease_enumerate;
enumerator->public.destroy = (void*)lease_enumerator_destroy;
enumerator->inner = enumerator->pool->ids->create_enumerator(enumerator->pool->ids);
enumerator->mutex = this->mutex;
enumerator->current = NULL;
return &enumerator->public;
}
/**
* Implementation of stroke_attribute_t.destroy
*/
static void destroy(private_stroke_attribute_t *this)
{
this->mutex->destroy(this->mutex);
this->pools->destroy_function(this->pools, (void*)pool_destroy);
free(this);
}
/*
* see header file
*/
stroke_attribute_t *stroke_attribute_create()
{
private_stroke_attribute_t *this = malloc_thing(private_stroke_attribute_t);
this->public.provider.acquire_address = (host_t*(*)(attribute_provider_t *this, char*, identification_t *,host_t *))acquire_address;
this->public.provider.release_address = (bool(*)(attribute_provider_t *this, char*,host_t *, identification_t*))release_address;
this->public.provider.create_attribute_enumerator = (enumerator_t*(*)(attribute_provider_t*, identification_t *id, host_t *vip))enumerator_create_empty;
this->public.add_pool = (void(*)(stroke_attribute_t*, stroke_msg_t *msg))add_pool;
this->public.del_pool = (void(*)(stroke_attribute_t*, stroke_msg_t *msg))del_pool;
this->public.create_pool_enumerator = (enumerator_t*(*)(stroke_attribute_t*))create_pool_enumerator;
this->public.create_lease_enumerator = (enumerator_t*(*)(stroke_attribute_t*, char *pool))create_lease_enumerator;
this->public.destroy = (void(*)(stroke_attribute_t*))destroy;
this->pools = linked_list_create();
this->mutex = mutex_create(MUTEX_TYPE_RECURSIVE);
return &this->public;
}
@@ -0,0 +1,86 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_attribute stroke_attribute
* @{ @ingroup stroke
*/
#ifndef STROKE_ATTRIBUTE_H_
#define STROKE_ATTRIBUTE_H_
#include <stroke_msg.h>
#include <attributes/attribute_provider.h>
typedef struct stroke_attribute_t stroke_attribute_t;
/**
* Stroke IKEv2 cfg attribute provider
*/
struct stroke_attribute_t {
/**
* Implements attribute provider interface
*/
attribute_provider_t provider;
/**
* Add a virtual IP address.
*
* @param msg stroke message
* @param end end of stroke message that contains virtual IP.
*/
void (*add_pool)(stroke_attribute_t *this, stroke_msg_t *msg);
/**
* Remove a virtual IP address.
*
* @param msg stroke message
*/
void (*del_pool)(stroke_attribute_t *this, stroke_msg_t *msg);
/**
* Create an enumerator over installed pools.
*
* Enumerator enumerates over
* char *pool, u_int size, u_int offline, u_int online.
*
* @return enumerator
*/
enumerator_t* (*create_pool_enumerator)(stroke_attribute_t *this);
/**
* Create an enumerator over the leases of a pool.
*
* Enumerator enumerates over
* identification_t *id, host_t *address, bool online
*
* @param pool name of the pool to enumerate
* @return enumerator, NULL if pool not found
*/
enumerator_t* (*create_lease_enumerator)(stroke_attribute_t *this,
char *pool);
/**
* Destroy a stroke_attribute instance.
*/
void (*destroy)(stroke_attribute_t *this);
};
/**
* Create a stroke_attribute instance.
*/
stroke_attribute_t *stroke_attribute_create();
#endif /** STROKE_ATTRIBUTE_H_ @}*/
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@@ -0,0 +1,458 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Copyright (C) 2008 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 "stroke_ca.h"
#include "stroke_cred.h"
#include <threading/rwlock.h>
#include <utils/linked_list.h>
#include <crypto/hashers/hasher.h>
#include <daemon.h>
typedef struct private_stroke_ca_t private_stroke_ca_t;
/**
* private data of stroke_ca
*/
struct private_stroke_ca_t {
/**
* public functions
*/
stroke_ca_t public;
/**
* read-write lock to lists
*/
rwlock_t *lock;
/**
* list of starters CA sections and its certificates (ca_section_t)
*/
linked_list_t *sections;
/**
* stroke credentials, stores our CA certificates
*/
stroke_cred_t *cred;
};
typedef struct ca_section_t ca_section_t;
/**
* loaded ipsec.conf CA sections
*/
struct ca_section_t {
/**
* name of the CA section
*/
char *name;
/**
* reference to cert in trusted_credential_t
*/
certificate_t *cert;
/**
* CRL URIs
*/
linked_list_t *crl;
/**
* OCSP URIs
*/
linked_list_t *ocsp;
/**
* Hashes of certificates issued by this CA
*/
linked_list_t *hashes;
/**
* Base URI used for certificates from this CA
*/
char *certuribase;
};
/**
* create a new CA section
*/
static ca_section_t *ca_section_create(char *name, certificate_t *cert)
{
ca_section_t *ca = malloc_thing(ca_section_t);
ca->name = strdup(name);
ca->crl = linked_list_create();
ca->ocsp = linked_list_create();
ca->cert = cert;
ca->hashes = linked_list_create();
ca->certuribase = NULL;
return ca;
}
/**
* destroy a ca section entry
*/
static void ca_section_destroy(ca_section_t *this)
{
this->crl->destroy_function(this->crl, free);
this->ocsp->destroy_function(this->ocsp, free);
this->hashes->destroy_offset(this->hashes, offsetof(identification_t, destroy));
free(this->certuribase);
free(this->name);
free(this);
}
/**
* data to pass to create_inner_cdp
*/
typedef struct {
private_stroke_ca_t *this;
certificate_type_t type;
identification_t *id;
} cdp_data_t;
/**
* destroy cdp enumerator data and unlock list
*/
static void cdp_data_destroy(cdp_data_t *data)
{
data->this->lock->unlock(data->this->lock);
free(data);
}
/**
* inner enumerator constructor for CDP URIs
*/
static enumerator_t *create_inner_cdp(ca_section_t *section, cdp_data_t *data)
{
public_key_t *public;
enumerator_t *enumerator = NULL;
linked_list_t *list;
if (data->type == CERT_X509_OCSP_RESPONSE)
{
list = section->ocsp;
}
else
{
list = section->crl;
}
public = section->cert->get_public_key(section->cert);
if (public)
{
if (!data->id)
{
enumerator = list->create_enumerator(list);
}
else
{
if (public->has_fingerprint(public, data->id->get_encoding(data->id)))
{
enumerator = list->create_enumerator(list);
}
}
public->destroy(public);
}
return enumerator;
}
/**
* inner enumerator constructor for "Hash and URL"
*/
static enumerator_t *create_inner_cdp_hashandurl(ca_section_t *section, cdp_data_t *data)
{
enumerator_t *enumerator = NULL, *hash_enum;
identification_t *current;
if (!data->id || !section->certuribase)
{
return NULL;
}
hash_enum = section->hashes->create_enumerator(section->hashes);
while (hash_enum->enumerate(hash_enum, &current))
{
if (current->matches(current, data->id))
{
char *url, *hash;
url = malloc(strlen(section->certuribase) + 40 + 1);
strcpy(url, section->certuribase);
hash = chunk_to_hex(current->get_encoding(current), NULL, FALSE).ptr;
strncat(url, hash, 40);
free(hash);
enumerator = enumerator_create_single(url, free);
break;
}
}
hash_enum->destroy(hash_enum);
return enumerator;
}
/**
* Implementation of credential_set_t.create_cdp_enumerator.
*/
static enumerator_t *create_cdp_enumerator(private_stroke_ca_t *this,
certificate_type_t type, identification_t *id)
{
cdp_data_t *data;
switch (type)
{ /* we serve CRLs, OCSP responders and URLs for "Hash and URL" */
case CERT_X509:
case CERT_X509_CRL:
case CERT_X509_OCSP_RESPONSE:
case CERT_ANY:
break;
default:
return NULL;
}
data = malloc_thing(cdp_data_t);
data->this = this;
data->type = type;
data->id = id;
this->lock->read_lock(this->lock);
return enumerator_create_nested(this->sections->create_enumerator(this->sections),
(type == CERT_X509) ? (void*)create_inner_cdp_hashandurl : (void*)create_inner_cdp,
data, (void*)cdp_data_destroy);
}
/**
* Implementation of stroke_ca_t.add.
*/
static void add(private_stroke_ca_t *this, stroke_msg_t *msg)
{
certificate_t *cert;
ca_section_t *ca;
if (msg->add_ca.cacert == NULL)
{
DBG1(DBG_CFG, "missing cacert parameter");
return;
}
cert = this->cred->load_ca(this->cred, msg->add_ca.cacert);
if (cert)
{
ca = ca_section_create(msg->add_ca.name, cert);
if (msg->add_ca.crluri)
{
ca->crl->insert_last(ca->crl, strdup(msg->add_ca.crluri));
}
if (msg->add_ca.crluri2)
{
ca->crl->insert_last(ca->crl, strdup(msg->add_ca.crluri2));
}
if (msg->add_ca.ocspuri)
{
ca->ocsp->insert_last(ca->ocsp, strdup(msg->add_ca.ocspuri));
}
if (msg->add_ca.ocspuri2)
{
ca->ocsp->insert_last(ca->ocsp, strdup(msg->add_ca.ocspuri2));
}
if (msg->add_ca.certuribase)
{
ca->certuribase = strdup(msg->add_ca.certuribase);
}
this->lock->write_lock(this->lock);
this->sections->insert_last(this->sections, ca);
this->lock->unlock(this->lock);
DBG1(DBG_CFG, "added ca '%s'", msg->add_ca.name);
}
}
/**
* Implementation of stroke_ca_t.del.
*/
static void del(private_stroke_ca_t *this, stroke_msg_t *msg)
{
enumerator_t *enumerator;
ca_section_t *ca = NULL;
this->lock->write_lock(this->lock);
enumerator = this->sections->create_enumerator(this->sections);
while (enumerator->enumerate(enumerator, &ca))
{
if (streq(ca->name, msg->del_ca.name))
{
this->sections->remove_at(this->sections, enumerator);
break;
}
ca = NULL;
}
enumerator->destroy(enumerator);
this->lock->unlock(this->lock);
if (ca == NULL)
{
DBG1(DBG_CFG, "no ca named '%s' found\n", msg->del_ca.name);
return;
}
ca_section_destroy(ca);
/* TODO: flush cached certs */
}
/**
* list crl or ocsp URIs
*/
static void list_uris(linked_list_t *list, char *label, FILE *out)
{
bool first = TRUE;
char *uri;
enumerator_t *enumerator;
enumerator = list->create_enumerator(list);
while (enumerator->enumerate(enumerator, (void**)&uri))
{
if (first)
{
fprintf(out, label);
first = FALSE;
}
else
{
fprintf(out, " ");
}
fprintf(out, "'%s'\n", uri);
}
enumerator->destroy(enumerator);
}
/**
* Implementation of stroke_ca_t.check_for_hash_and_url.
*/
static void check_for_hash_and_url(private_stroke_ca_t *this, certificate_t* cert)
{
ca_section_t *section;
enumerator_t *enumerator;
hasher_t *hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
if (hasher == NULL)
{
DBG1(DBG_IKE, "unable to use hash-and-url: sha1 not supported");
return;
}
this->lock->write_lock(this->lock);
enumerator = this->sections->create_enumerator(this->sections);
while (enumerator->enumerate(enumerator, (void**)&section))
{
if (section->certuribase && cert->issued_by(cert, section->cert))
{
chunk_t hash, encoded = cert->get_encoding(cert);
hasher->allocate_hash(hasher, encoded, &hash);
section->hashes->insert_last(section->hashes,
identification_create_from_encoding(ID_KEY_ID, hash));
chunk_free(&hash);
chunk_free(&encoded);
break;
}
}
enumerator->destroy(enumerator);
this->lock->unlock(this->lock);
hasher->destroy(hasher);
}
/**
* Implementation of stroke_ca_t.list.
*/
static void list(private_stroke_ca_t *this, stroke_msg_t *msg, FILE *out)
{
bool first = TRUE;
ca_section_t *section;
enumerator_t *enumerator;
this->lock->read_lock(this->lock);
enumerator = this->sections->create_enumerator(this->sections);
while (enumerator->enumerate(enumerator, (void**)&section))
{
certificate_t *cert = section->cert;
public_key_t *public = cert->get_public_key(cert);
chunk_t chunk;
if (first)
{
fprintf(out, "\n");
fprintf(out, "List of CA Information Sections:\n");
first = FALSE;
}
fprintf(out, "\n");
fprintf(out, " authname: \"%Y\"\n", cert->get_subject(cert));
/* list authkey and keyid */
if (public)
{
if (public->get_fingerprint(public, KEY_ID_PUBKEY_SHA1, &chunk))
{
fprintf(out, " authkey: %#B\n", &chunk);
}
if (public->get_fingerprint(public, KEY_ID_PUBKEY_INFO_SHA1, &chunk))
{
fprintf(out, " keyid: %#B\n", &chunk);
}
public->destroy(public);
}
list_uris(section->crl, " crluris: ", out);
list_uris(section->ocsp, " ocspuris: ", out);
if (section->certuribase)
{
fprintf(out, " certuribase: '%s'\n", section->certuribase);
}
}
enumerator->destroy(enumerator);
this->lock->unlock(this->lock);
}
/**
* Implementation of stroke_ca_t.destroy
*/
static void destroy(private_stroke_ca_t *this)
{
this->sections->destroy_function(this->sections, (void*)ca_section_destroy);
this->lock->destroy(this->lock);
free(this);
}
/*
* see header file
*/
stroke_ca_t *stroke_ca_create(stroke_cred_t *cred)
{
private_stroke_ca_t *this = malloc_thing(private_stroke_ca_t);
this->public.set.create_private_enumerator = (void*)return_null;
this->public.set.create_cert_enumerator = (void*)return_null;
this->public.set.create_shared_enumerator = (void*)return_null;
this->public.set.create_cdp_enumerator = (void*)create_cdp_enumerator;
this->public.set.cache_cert = (void*)nop;
this->public.add = (void(*)(stroke_ca_t*, stroke_msg_t *msg))add;
this->public.del = (void(*)(stroke_ca_t*, stroke_msg_t *msg))del;
this->public.list = (void(*)(stroke_ca_t*, stroke_msg_t *msg, FILE *out))list;
this->public.check_for_hash_and_url = (void(*)(stroke_ca_t*, certificate_t*))check_for_hash_and_url;
this->public.destroy = (void(*)(stroke_ca_t*))destroy;
this->sections = linked_list_create();
this->lock = rwlock_create(RWLOCK_TYPE_DEFAULT);
this->cred = cred;
return &this->public;
}
+80
View File
@@ -0,0 +1,80 @@
/*
* Copyright (C) 2008 Tobias Brunner
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_ca stroke_ca
* @{ @ingroup stroke
*/
#ifndef STROKE_CA_H_
#define STROKE_CA_H_
#include <stroke_msg.h>
#include "stroke_cred.h"
typedef struct stroke_ca_t stroke_ca_t;
/**
* ipsec.conf ca section handling.
*/
struct stroke_ca_t {
/**
* Implements credential_set_t
*/
credential_set_t set;
/**
* Add a CA to the set using a stroke_msg_t.
*
* @param msg stroke message containing CA info
*/
void (*add)(stroke_ca_t *this, stroke_msg_t *msg);
/**
* Remove a CA from the set using a stroke_msg_t.
*
* @param msg stroke message containing CA info
*/
void (*del)(stroke_ca_t *this, stroke_msg_t *msg);
/**
* List CA sections to stroke console.
*
* @param msg stroke message
*/
void (*list)(stroke_ca_t *this, stroke_msg_t *msg, FILE *out);
/**
* Check if a certificate can be made available through hash and URL.
*
* @param cert peer certificate
*/
void (*check_for_hash_and_url)(stroke_ca_t *this, certificate_t* cert);
/**
* Destroy a stroke_ca instance.
*/
void (*destroy)(stroke_ca_t *this);
};
/**
* Create a stroke_ca instance.
*/
stroke_ca_t *stroke_ca_create(stroke_cred_t *cred);
#endif /** STROKE_CA_H_ @}*/
@@ -0,0 +1,949 @@
/*
* Copyright (C) 2008 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 "stroke_config.h"
#include <daemon.h>
#include <threading/mutex.h>
#include <utils/lexparser.h>
typedef struct private_stroke_config_t private_stroke_config_t;
/**
* private data of stroke_config
*/
struct private_stroke_config_t {
/**
* public functions
*/
stroke_config_t public;
/**
* list of peer_cfg_t
*/
linked_list_t *list;
/**
* mutex to lock config list
*/
mutex_t *mutex;
/**
* ca sections
*/
stroke_ca_t *ca;
/**
* credentials
*/
stroke_cred_t *cred;
};
/**
* Implementation of backend_t.create_peer_cfg_enumerator.
*/
static enumerator_t* create_peer_cfg_enumerator(private_stroke_config_t *this,
identification_t *me,
identification_t *other)
{
this->mutex->lock(this->mutex);
return enumerator_create_cleaner(this->list->create_enumerator(this->list),
(void*)this->mutex->unlock, this->mutex);
}
/**
* filter function for ike configs
*/
static bool ike_filter(void *data, peer_cfg_t **in, ike_cfg_t **out)
{
*out = (*in)->get_ike_cfg(*in);
return TRUE;
}
/**
* Implementation of backend_t.create_ike_cfg_enumerator.
*/
static enumerator_t* create_ike_cfg_enumerator(private_stroke_config_t *this,
host_t *me, host_t *other)
{
this->mutex->lock(this->mutex);
return enumerator_create_filter(this->list->create_enumerator(this->list),
(void*)ike_filter, this->mutex,
(void*)this->mutex->unlock);
}
/**
* implements backend_t.get_peer_cfg_by_name.
*/
static peer_cfg_t *get_peer_cfg_by_name(private_stroke_config_t *this, char *name)
{
enumerator_t *e1, *e2;
peer_cfg_t *current, *found = NULL;
child_cfg_t *child;
this->mutex->lock(this->mutex);
e1 = this->list->create_enumerator(this->list);
while (e1->enumerate(e1, &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 */
e2 = current->create_child_cfg_enumerator(current);
while (e2->enumerate(e2, &child))
{
if (streq(child->get_name(child), name))
{
found = current;
found->get_ref(found);
break;
}
}
e2->destroy(e2);
if (found)
{
break;
}
}
e1->destroy(e1);
this->mutex->unlock(this->mutex);
return found;
}
/**
* parse a proposal string, either into ike_cfg or child_cfg
*/
static void add_proposals(private_stroke_config_t *this, char *string,
ike_cfg_t *ike_cfg, child_cfg_t *child_cfg)
{
if (string)
{
char *single;
char *strict;
proposal_t *proposal;
protocol_id_t proto = PROTO_ESP;
if (ike_cfg)
{
proto = PROTO_IKE;
}
strict = string + strlen(string) - 1;
if (*strict == '!')
{
*strict = '\0';
}
else
{
strict = NULL;
}
while ((single = strsep(&string, ",")))
{
proposal = proposal_create_from_string(proto, single);
if (proposal)
{
if (ike_cfg)
{
ike_cfg->add_proposal(ike_cfg, proposal);
}
else
{
child_cfg->add_proposal(child_cfg, proposal);
}
continue;
}
DBG1(DBG_CFG, "skipped invalid proposal string: %s", single);
}
if (strict)
{
return;
}
/* add default porposal to the end if not strict */
}
if (ike_cfg)
{
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
}
else
{
child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
}
}
/**
* Build an IKE config from a stroke message
*/
static ike_cfg_t *build_ike_cfg(private_stroke_config_t *this, stroke_msg_t *msg)
{
stroke_end_t tmp_end;
ike_cfg_t *ike_cfg;
char *interface;
host_t *host;
host = host_create_from_dns(msg->add_conn.other.address, 0, 0);
if (host)
{
interface = charon->kernel_interface->get_interface(
charon->kernel_interface, host);
host->destroy(host);
if (interface)
{
DBG2(DBG_CFG, "left is other host, swapping ends");
tmp_end = msg->add_conn.me;
msg->add_conn.me = msg->add_conn.other;
msg->add_conn.other = tmp_end;
free(interface);
}
else
{
host = host_create_from_dns(msg->add_conn.me.address, 0, 0);
if (host)
{
interface = charon->kernel_interface->get_interface(
charon->kernel_interface, host);
host->destroy(host);
if (!interface)
{
DBG1(DBG_CFG, "left nor right host is our side, "
"assuming left=local");
}
else
{
free(interface);
}
}
}
}
ike_cfg = ike_cfg_create(msg->add_conn.other.sendcert != CERT_NEVER_SEND,
msg->add_conn.force_encap,
msg->add_conn.me.address, msg->add_conn.me.ikeport,
msg->add_conn.other.address, msg->add_conn.other.ikeport);
add_proposals(this, msg->add_conn.algorithms.ike, ike_cfg, NULL);
return ike_cfg;
}
/**
* Add CRL constraint to config
*/
static void build_crl_policy(auth_cfg_t *cfg, bool local, int policy)
{
/* CRL/OCSP policy, for remote config only */
if (!local)
{
switch (policy)
{
case CRL_STRICT_YES:
/* if yes, we require a GOOD validation */
cfg->add(cfg, AUTH_RULE_CRL_VALIDATION, VALIDATION_GOOD);
break;
case CRL_STRICT_IFURI:
/* for ifuri, a SKIPPED validation is sufficient */
cfg->add(cfg, AUTH_RULE_CRL_VALIDATION, VALIDATION_SKIPPED);
break;
default:
break;
}
}
}
/**
* build authentication config
*/
static auth_cfg_t *build_auth_cfg(private_stroke_config_t *this,
stroke_msg_t *msg, bool local, bool primary)
{
identification_t *identity;
certificate_t *certificate;
char *auth, *id, *cert, *ca;
stroke_end_t *end, *other_end;
auth_cfg_t *cfg;
char eap_buf[32];
/* select strings */
if (local)
{
end = &msg->add_conn.me;
other_end = &msg->add_conn.other;
}
else
{
end = &msg->add_conn.other;
other_end = &msg->add_conn.me;
}
if (primary)
{
auth = end->auth;
id = end->id;
if (!id)
{ /* leftid/rightid fallback to address */
id = end->address;
}
cert = end->cert;
ca = end->ca;
if (ca && streq(ca, "%same"))
{
ca = other_end->ca;
}
}
else
{
auth = end->auth2;
id = end->id2;
if (local && !id)
{ /* leftid2 falls back to leftid */
id = end->id;
}
cert = end->cert2;
ca = end->ca2;
if (ca && streq(ca, "%same"))
{
ca = other_end->ca2;
}
}
if (!auth)
{
if (primary)
{
if (local)
{ /* "leftauth" not defined, fall back to deprecated "authby" */
switch (msg->add_conn.auth_method)
{
default:
case AUTH_CLASS_PUBKEY:
auth = "pubkey";
break;
case AUTH_CLASS_PSK:
auth = "psk";
break;
case AUTH_CLASS_EAP:
auth = "eap";
break;
}
}
else
{ /* "rightauth" not defined, fall back to deprecated "eap" */
if (msg->add_conn.eap_type)
{
if (msg->add_conn.eap_vendor)
{
snprintf(eap_buf, sizeof(eap_buf), "eap-%d-%d",
msg->add_conn.eap_type,
msg->add_conn.eap_vendor);
}
else
{
snprintf(eap_buf, sizeof(eap_buf), "eap-%d",
msg->add_conn.eap_type);
}
auth = eap_buf;
}
else
{ /* not EAP => no constraints for this peer */
auth = "any";
}
}
}
else
{ /* no second authentication round, fine */
return NULL;
}
}
cfg = auth_cfg_create();
/* add identity and peer certifcate */
identity = identification_create_from_string(id);
if (cert)
{
certificate = this->cred->load_peer(this->cred, cert);
if (certificate)
{
if (local)
{
this->ca->check_for_hash_and_url(this->ca, certificate);
}
cfg->add(cfg, AUTH_RULE_SUBJECT_CERT, certificate);
if (identity->get_type(identity) == ID_ANY ||
!certificate->has_subject(certificate, identity))
{
DBG1(DBG_CFG, " id '%Y' not confirmed by certificate, "
"defaulting to '%Y'", identity,
certificate->get_subject(certificate));
identity->destroy(identity);
identity = certificate->get_subject(certificate);
identity = identity->clone(identity);
}
}
}
cfg->add(cfg, AUTH_RULE_IDENTITY, identity);
/* CA constraint */
if (ca)
{
identity = identification_create_from_string(ca);
certificate = charon->credentials->get_cert(charon->credentials,
CERT_X509, KEY_ANY, identity, TRUE);
identity->destroy(identity);
if (certificate)
{
cfg->add(cfg, AUTH_RULE_CA_CERT, certificate);
}
else
{
DBG1(DBG_CFG, "CA certificate %s not found, discarding CA "
"constraint", ca);
}
}
/* AC groups */
if (end->groups)
{
enumerator_t *enumerator;
char *group;
enumerator = enumerator_create_token(end->groups, ",", " ");
while (enumerator->enumerate(enumerator, &group))
{
identity = identification_create_from_encoding(ID_IETF_ATTR_STRING,
chunk_create(group, strlen(group)));
cfg->add(cfg, AUTH_RULE_AC_GROUP, identity);
}
enumerator->destroy(enumerator);
}
/* authentication metod (class, actually) */
if (streq(auth, "pubkey") ||
streq(auth, "rsasig") || streq(auth, "rsa") ||
streq(auth, "ecdsasig") || streq(auth, "ecdsa"))
{
cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY);
build_crl_policy(cfg, local, msg->add_conn.crl_policy);
}
else if (streq(auth, "psk") || streq(auth, "secret"))
{
cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK);
}
else if (strneq(auth, "eap", 3))
{
enumerator_t *enumerator;
char *str;
int i = 0, type = 0, vendor;
cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_EAP);
/* parse EAP string, format: eap[-type[-vendor]] */
enumerator = enumerator_create_token(auth, "-", " ");
while (enumerator->enumerate(enumerator, &str))
{
switch (i)
{
case 1:
type = eap_type_from_string(str);
if (!type)
{
type = atoi(str);
if (!type)
{
DBG1(DBG_CFG, "unknown EAP method: %s", str);
break;
}
}
cfg->add(cfg, AUTH_RULE_EAP_TYPE, type);
break;
case 2:
if (type)
{
vendor = atoi(str);
if (vendor)
{
cfg->add(cfg, AUTH_RULE_EAP_VENDOR, vendor);
}
else
{
DBG1(DBG_CFG, "unknown EAP vendor: %s", str);
}
}
break;
default:
break;
}
i++;
}
enumerator->destroy(enumerator);
if (msg->add_conn.eap_identity)
{
if (streq(msg->add_conn.eap_identity, "%identity"))
{
identity = identification_create_from_encoding(ID_ANY,
chunk_empty);
}
else
{
identity = identification_create_from_string(
msg->add_conn.eap_identity);
}
cfg->add(cfg, AUTH_RULE_EAP_IDENTITY, identity);
}
}
else
{
if (!streq(auth, "any"))
{
DBG1(DBG_CFG, "authentication method %s unknown, fallback to any",
auth);
}
build_crl_policy(cfg, local, msg->add_conn.crl_policy);
}
return cfg;
}
/**
* build a peer_cfg from a stroke msg
*/
static peer_cfg_t *build_peer_cfg(private_stroke_config_t *this,
stroke_msg_t *msg, ike_cfg_t *ike_cfg)
{
identification_t *peer_id = NULL;
peer_cfg_t *mediated_by = NULL;
host_t *vip = NULL;
unique_policy_t unique;
u_int32_t rekey = 0, reauth = 0, over, jitter;
peer_cfg_t *peer_cfg;
auth_cfg_t *auth_cfg;
#ifdef ME
if (msg->add_conn.ikeme.mediation && msg->add_conn.ikeme.mediated_by)
{
DBG1(DBG_CFG, "a mediation connection cannot be a mediated connection "
"at the same time, aborting");
return NULL;
}
if (msg->add_conn.ikeme.mediation)
{
/* force unique connections for mediation connections */
msg->add_conn.unique = 1;
}
if (msg->add_conn.ikeme.mediated_by)
{
mediated_by = charon->backends->get_peer_cfg_by_name(charon->backends,
msg->add_conn.ikeme.mediated_by);
if (!mediated_by)
{
DBG1(DBG_CFG, "mediation connection '%s' not found, aborting",
msg->add_conn.ikeme.mediated_by);
return NULL;
}
if (!mediated_by->is_mediation(mediated_by))
{
DBG1(DBG_CFG, "connection '%s' as referred to by '%s' is "
"no mediation connection, aborting",
msg->add_conn.ikeme.mediated_by, msg->add_conn.name);
mediated_by->destroy(mediated_by);
return NULL;
}
if (msg->add_conn.ikeme.peerid)
{
peer_id = identification_create_from_string(msg->add_conn.ikeme.peerid);
}
else if (msg->add_conn.other.id)
{
peer_id = identification_create_from_string(msg->add_conn.other.id);
}
}
#endif /* ME */
jitter = msg->add_conn.rekey.margin * msg->add_conn.rekey.fuzz / 100;
over = msg->add_conn.rekey.margin;
if (msg->add_conn.rekey.reauth)
{
reauth = msg->add_conn.rekey.ike_lifetime - over;
}
else
{
rekey = msg->add_conn.rekey.ike_lifetime - over;
}
if (msg->add_conn.me.sourceip_mask)
{
if (msg->add_conn.me.sourceip)
{
vip = host_create_from_string(msg->add_conn.me.sourceip, 0);
}
if (!vip)
{ /* if it is set to something like %poolname, request an address */
if (msg->add_conn.me.subnets)
{ /* use the same address as in subnet, if any */
if (strchr(msg->add_conn.me.subnets, '.'))
{
vip = host_create_any(AF_INET);
}
else
{
vip = host_create_any(AF_INET6);
}
}
else
{
if (strchr(ike_cfg->get_my_addr(ike_cfg), ':'))
{
vip = host_create_any(AF_INET6);
}
else
{
vip = host_create_any(AF_INET);
}
}
}
}
switch (msg->add_conn.unique)
{
case 1: /* yes */
case 2: /* replace */
unique = UNIQUE_REPLACE;
break;
case 3: /* keep */
unique = UNIQUE_KEEP;
break;
default: /* no */
unique = UNIQUE_NO;
break;
}
if (msg->add_conn.dpd.action == 0)
{ /* dpdaction=none disables DPD */
msg->add_conn.dpd.delay = 0;
}
/* other.sourceip is managed in stroke_attributes. If it is set, we define
* the pool name as the connection name, which the attribute provider
* uses to serve pool addresses. */
peer_cfg = peer_cfg_create(msg->add_conn.name,
msg->add_conn.ikev2 ? 2 : 1, ike_cfg,
msg->add_conn.me.sendcert, unique,
msg->add_conn.rekey.tries, rekey, reauth, jitter, over,
msg->add_conn.mobike, msg->add_conn.dpd.delay,
vip, msg->add_conn.other.sourceip_mask ?
msg->add_conn.name : msg->add_conn.other.sourceip,
msg->add_conn.ikeme.mediation, mediated_by, peer_id);
/* build leftauth= */
auth_cfg = build_auth_cfg(this, msg, TRUE, TRUE);
if (auth_cfg)
{
peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, TRUE);
}
else
{ /* we require at least one config on our side */
peer_cfg->destroy(peer_cfg);
return NULL;
}
/* build leftauth2= */
auth_cfg = build_auth_cfg(this, msg, TRUE, FALSE);
if (auth_cfg)
{
peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, TRUE);
}
/* build rightauth= */
auth_cfg = build_auth_cfg(this, msg, FALSE, TRUE);
if (auth_cfg)
{
peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, FALSE);
}
/* build rightauth2= */
auth_cfg = build_auth_cfg(this, msg, FALSE, FALSE);
if (auth_cfg)
{
peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, FALSE);
}
return peer_cfg;
}
/**
* build a traffic selector from a stroke_end
*/
static void add_ts(private_stroke_config_t *this,
stroke_end_t *end, child_cfg_t *child_cfg, bool local)
{
traffic_selector_t *ts;
if (end->tohost)
{
ts = traffic_selector_create_dynamic(end->protocol,
end->port ? end->port : 0, end->port ? end->port : 65535);
child_cfg->add_traffic_selector(child_cfg, local, ts);
}
else
{
host_t *net;
if (!end->subnets)
{
net = host_create_from_string(end->address, 0);
if (net)
{
ts = traffic_selector_create_from_subnet(net, 0, end->protocol,
end->port);
child_cfg->add_traffic_selector(child_cfg, local, ts);
}
}
else
{
char *del, *start, *bits;
start = end->subnets;
do
{
int intbits = 0;
del = strchr(start, ',');
if (del)
{
*del = '\0';
}
bits = strchr(start, '/');
if (bits)
{
*bits = '\0';
intbits = atoi(bits + 1);
}
net = host_create_from_string(start, 0);
if (net)
{
ts = traffic_selector_create_from_subnet(net, intbits,
end->protocol, end->port);
child_cfg->add_traffic_selector(child_cfg, local, ts);
}
else
{
DBG1(DBG_CFG, "invalid subnet: %s, skipped", start);
}
start = del + 1;
}
while (del);
}
}
}
/**
* build a child config from the stroke message
*/
static child_cfg_t *build_child_cfg(private_stroke_config_t *this,
stroke_msg_t *msg)
{
child_cfg_t *child_cfg;
action_t dpd;
lifetime_cfg_t lifetime = {
.time = {
.life = msg->add_conn.rekey.ipsec_lifetime,
.rekey = msg->add_conn.rekey.ipsec_lifetime - msg->add_conn.rekey.margin,
.jitter = msg->add_conn.rekey.margin * msg->add_conn.rekey.fuzz / 100
},
.bytes = {
.life = msg->add_conn.rekey.life_bytes,
.rekey = msg->add_conn.rekey.life_bytes - msg->add_conn.rekey.margin_bytes,
.jitter = msg->add_conn.rekey.margin_bytes * msg->add_conn.rekey.fuzz / 100
},
.packets = {
.life = msg->add_conn.rekey.life_packets,
.rekey = msg->add_conn.rekey.life_packets - msg->add_conn.rekey.margin_packets,
.jitter = msg->add_conn.rekey.margin_packets * msg->add_conn.rekey.fuzz / 100
}
};
switch (msg->add_conn.dpd.action)
{ /* map startes magic values to our action type */
case 2: /* =hold */
dpd = ACTION_ROUTE;
break;
case 3: /* =restart */
dpd = ACTION_RESTART;
break;
default:
dpd = ACTION_NONE;
break;
}
child_cfg = child_cfg_create(
msg->add_conn.name, &lifetime,
msg->add_conn.me.updown, msg->add_conn.me.hostaccess,
msg->add_conn.mode, dpd, dpd, msg->add_conn.ipcomp,
msg->add_conn.inactivity);
child_cfg->set_mipv6_options(child_cfg, msg->add_conn.proxy_mode,
msg->add_conn.install_policy);
add_ts(this, &msg->add_conn.me, child_cfg, TRUE);
add_ts(this, &msg->add_conn.other, child_cfg, FALSE);
add_proposals(this, msg->add_conn.algorithms.esp, NULL, child_cfg);
return child_cfg;
}
/**
* Implementation of stroke_config_t.add.
*/
static void add(private_stroke_config_t *this, stroke_msg_t *msg)
{
ike_cfg_t *ike_cfg, *existing_ike;
peer_cfg_t *peer_cfg, *existing;
child_cfg_t *child_cfg;
enumerator_t *enumerator;
bool use_existing = FALSE;
ike_cfg = build_ike_cfg(this, msg);
if (!ike_cfg)
{
return;
}
peer_cfg = build_peer_cfg(this, msg, ike_cfg);
if (!peer_cfg)
{
ike_cfg->destroy(ike_cfg);
return;
}
enumerator = create_peer_cfg_enumerator(this, NULL, NULL);
while (enumerator->enumerate(enumerator, &existing))
{
existing_ike = existing->get_ike_cfg(existing);
if (existing->equals(existing, peer_cfg) &&
existing_ike->equals(existing_ike, peer_cfg->get_ike_cfg(peer_cfg)))
{
use_existing = TRUE;
peer_cfg->destroy(peer_cfg);
peer_cfg = existing;
peer_cfg->get_ref(peer_cfg);
DBG1(DBG_CFG, "added child to existing configuration '%s'",
peer_cfg->get_name(peer_cfg));
break;
}
}
enumerator->destroy(enumerator);
child_cfg = build_child_cfg(this, msg);
if (!child_cfg)
{
peer_cfg->destroy(peer_cfg);
return;
}
peer_cfg->add_child_cfg(peer_cfg, child_cfg);
if (use_existing)
{
peer_cfg->destroy(peer_cfg);
}
else
{
/* add config to backend */
DBG1(DBG_CFG, "added configuration '%s'", msg->add_conn.name);
this->mutex->lock(this->mutex);
this->list->insert_last(this->list, peer_cfg);
this->mutex->unlock(this->mutex);
}
}
/**
* Implementation of stroke_config_t.del.
*/
static void del(private_stroke_config_t *this, stroke_msg_t *msg)
{
enumerator_t *enumerator, *children;
peer_cfg_t *peer;
child_cfg_t *child;
bool deleted = FALSE;
this->mutex->lock(this->mutex);
enumerator = this->list->create_enumerator(this->list);
while (enumerator->enumerate(enumerator, (void**)&peer))
{
bool keep = FALSE;
/* remove any child with such a name */
children = peer->create_child_cfg_enumerator(peer);
while (children->enumerate(children, &child))
{
if (streq(child->get_name(child), msg->del_conn.name))
{
peer->remove_child_cfg(peer, children);
child->destroy(child);
deleted = TRUE;
}
else
{
keep = TRUE;
}
}
children->destroy(children);
/* if peer config matches, or has no children anymore, remove it */
if (!keep || streq(peer->get_name(peer), msg->del_conn.name))
{
this->list->remove_at(this->list, enumerator);
peer->destroy(peer);
deleted = TRUE;
}
}
enumerator->destroy(enumerator);
this->mutex->unlock(this->mutex);
if (deleted)
{
DBG1(DBG_CFG, "deleted connection '%s'", msg->del_conn.name);
}
else
{
DBG1(DBG_CFG, "connection '%s' not found", msg->del_conn.name);
}
}
/**
* Implementation of stroke_config_t.destroy
*/
static void destroy(private_stroke_config_t *this)
{
this->list->destroy_offset(this->list, offsetof(peer_cfg_t, destroy));
this->mutex->destroy(this->mutex);
free(this);
}
/*
* see header file
*/
stroke_config_t *stroke_config_create(stroke_ca_t *ca, stroke_cred_t *cred)
{
private_stroke_config_t *this = malloc_thing(private_stroke_config_t);
this->public.backend.create_peer_cfg_enumerator = (enumerator_t*(*)(backend_t*, identification_t *me, identification_t *other))create_peer_cfg_enumerator;
this->public.backend.create_ike_cfg_enumerator = (enumerator_t*(*)(backend_t*, host_t *me, host_t *other))create_ike_cfg_enumerator;
this->public.backend.get_peer_cfg_by_name = (peer_cfg_t* (*)(backend_t*,char*))get_peer_cfg_by_name;
this->public.add = (void(*)(stroke_config_t*, stroke_msg_t *msg))add;
this->public.del = (void(*)(stroke_config_t*, stroke_msg_t *msg))del;
this->public.destroy = (void(*)(stroke_config_t*))destroy;
this->list = linked_list_create();
this->mutex = mutex_create(MUTEX_TYPE_RECURSIVE);
this->ca = ca;
this->cred = cred;
return &this->public;
}
@@ -0,0 +1,66 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_config stroke_config
* @{ @ingroup stroke
*/
#ifndef STROKE_CONFIG_H_
#define STROKE_CONFIG_H_
#include <config/backend.h>
#include <stroke_msg.h>
#include "stroke_ca.h"
#include "stroke_cred.h"
typedef struct stroke_config_t stroke_config_t;
/**
* Stroke in-memory configuration backend
*/
struct stroke_config_t {
/**
* Implements the backend_t interface
*/
backend_t backend;
/**
* Add a configuration to the backend.
*
* @param msg received stroke message containing config
*/
void (*add)(stroke_config_t *this, stroke_msg_t *msg);
/**
* Remove a configuration from the backend.
*
* @param msg received stroke message containing config name
*/
void (*del)(stroke_config_t *this, stroke_msg_t *msg);
/**
* Destroy a stroke_config instance.
*/
void (*destroy)(stroke_config_t *this);
};
/**
* Create a stroke_config instance.
*/
stroke_config_t *stroke_config_create(stroke_ca_t *ca, stroke_cred_t *cred);
#endif /** STROKE_CONFIG_H_ @}*/
@@ -0,0 +1,491 @@
/*
* Copyright (C) 2008 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 "stroke_control.h"
#include <daemon.h>
#include <processing/jobs/delete_ike_sa_job.h>
typedef struct private_stroke_control_t private_stroke_control_t;
/**
* private data of stroke_control
*/
struct private_stroke_control_t {
/**
* public functions
*/
stroke_control_t public;
};
typedef struct stroke_log_info_t stroke_log_info_t;
/**
* helper struct to say what and where to log when using controller callback
*/
struct stroke_log_info_t {
/**
* level to log up to
*/
level_t level;
/**
* where to write log
*/
FILE* out;
};
/**
* logging to the stroke interface
*/
static bool stroke_log(stroke_log_info_t *info, debug_t group, level_t level,
ike_sa_t *ike_sa, char *format, va_list args)
{
if (level <= info->level)
{
if (vfprintf(info->out, format, args) < 0 ||
fprintf(info->out, "\n") < 0 ||
fflush(info->out) != 0)
{
return FALSE;
}
}
return TRUE;
}
/**
* get the child_cfg with the same name as the peer cfg
*/
static child_cfg_t* get_child_from_peer(peer_cfg_t *peer_cfg, char *name)
{
child_cfg_t *current, *found = NULL;
enumerator_t *enumerator;
enumerator = peer_cfg->create_child_cfg_enumerator(peer_cfg);
while (enumerator->enumerate(enumerator, &current))
{
if (streq(current->get_name(current), name))
{
found = current;
found->get_ref(found);
break;
}
}
enumerator->destroy(enumerator);
return found;
}
/**
* Implementation of stroke_control_t.initiate.
*/
static void initiate(private_stroke_control_t *this, stroke_msg_t *msg, FILE *out)
{
peer_cfg_t *peer_cfg;
child_cfg_t *child_cfg;
stroke_log_info_t info;
peer_cfg = charon->backends->get_peer_cfg_by_name(charon->backends,
msg->initiate.name);
if (peer_cfg == NULL)
{
DBG1(DBG_CFG, "no config named '%s'\n", msg->initiate.name);
return;
}
if (peer_cfg->get_ike_version(peer_cfg) != 2)
{
DBG1(DBG_CFG, "ignoring initiation request for IKEv%d config",
peer_cfg->get_ike_version(peer_cfg));
peer_cfg->destroy(peer_cfg);
return;
}
child_cfg = get_child_from_peer(peer_cfg, msg->initiate.name);
if (child_cfg == NULL)
{
DBG1(DBG_CFG, "no child config named '%s'\n", msg->initiate.name);
peer_cfg->destroy(peer_cfg);
return;
}
if (msg->output_verbosity < 0)
{
charon->controller->initiate(charon->controller, peer_cfg, child_cfg,
NULL, NULL);
}
else
{
info.out = out;
info.level = msg->output_verbosity;
charon->controller->initiate(charon->controller, peer_cfg, child_cfg,
(controller_cb_t)stroke_log, &info);
}
}
/**
* Implementation of stroke_control_t.terminate.
*/
static void terminate(private_stroke_control_t *this, stroke_msg_t *msg, FILE *out)
{
char *string, *pos = NULL, *name = NULL;
u_int32_t id = 0;
bool child, all = FALSE;
int len;
ike_sa_t *ike_sa;
enumerator_t *enumerator;
linked_list_t *ike_list, *child_list;
stroke_log_info_t info;
uintptr_t del;
string = msg->terminate.name;
len = strlen(string);
if (len < 1)
{
DBG1(DBG_CFG, "error parsing string");
return;
}
switch (string[len-1])
{
case '}':
child = TRUE;
pos = strchr(string, '{');
break;
case ']':
child = FALSE;
pos = strchr(string, '[');
break;
default:
name = string;
child = FALSE;
break;
}
if (name)
{
/* is a single name */
}
else if (pos == string + len - 2)
{ /* is name[] or name{} */
string[len-2] = '\0';
name = string;
}
else
{
if (*(pos + 1) == '*')
{ /* is name[*] */
all = TRUE;
*pos = '\0';
name = string;
}
else
{ /* is name[123] or name{23} */
id = atoi(pos + 1);
if (id == 0)
{
DBG1(DBG_CFG, "error parsing string");
return;
}
}
}
info.out = out;
info.level = msg->output_verbosity;
if (id)
{
if (child)
{
charon->controller->terminate_child(charon->controller, id,
(controller_cb_t)stroke_log, &info);
}
else
{
charon->controller->terminate_ike(charon->controller, id,
(controller_cb_t)stroke_log, &info);
}
return;
}
ike_list = linked_list_create();
child_list = linked_list_create();
enumerator = charon->controller->create_ike_sa_enumerator(charon->controller);
while (enumerator->enumerate(enumerator, &ike_sa))
{
child_sa_t *child_sa;
iterator_t *children;
if (child)
{
children = ike_sa->create_child_sa_iterator(ike_sa);
while (children->iterate(children, (void**)&child_sa))
{
if (streq(name, child_sa->get_name(child_sa)))
{
child_list->insert_last(child_list,
(void*)(uintptr_t)child_sa->get_reqid(child_sa));
if (!all)
{
break;
}
}
}
children->destroy(children);
if (child_list->get_count(child_list) && !all)
{
break;
}
}
else if (streq(name, ike_sa->get_name(ike_sa)))
{
ike_list->insert_last(ike_list,
(void*)(uintptr_t)ike_sa->get_unique_id(ike_sa));
if (!all)
{
break;
}
}
}
enumerator->destroy(enumerator);
enumerator = child_list->create_enumerator(child_list);
while (enumerator->enumerate(enumerator, &del))
{
charon->controller->terminate_child(charon->controller, del,
(controller_cb_t)stroke_log, &info);
}
enumerator->destroy(enumerator);
enumerator = ike_list->create_enumerator(ike_list);
while (enumerator->enumerate(enumerator, &del))
{
charon->controller->terminate_ike(charon->controller, del,
(controller_cb_t)stroke_log, &info);
}
enumerator->destroy(enumerator);
if (child_list->get_count(child_list) == 0 &&
ike_list->get_count(ike_list) == 0)
{
DBG1(DBG_CFG, "no %s_SA named '%s' found",
child ? "CHILD" : "IKE", name);
}
ike_list->destroy(ike_list);
child_list->destroy(child_list);
}
/**
* Implementation of stroke_control_t.terminate_srcip.
*/
static void terminate_srcip(private_stroke_control_t *this,
stroke_msg_t *msg, FILE *out)
{
enumerator_t *enumerator;
ike_sa_t *ike_sa;
host_t *start = NULL, *end = NULL, *vip;
chunk_t chunk_start, chunk_end = chunk_empty, chunk_vip;
if (msg->terminate_srcip.start)
{
start = host_create_from_string(msg->terminate_srcip.start, 0);
}
if (!start)
{
DBG1(DBG_CFG, "invalid start address: %s", msg->terminate_srcip.start);
return;
}
chunk_start = start->get_address(start);
if (msg->terminate_srcip.end)
{
end = host_create_from_string(msg->terminate_srcip.end, 0);
if (!end)
{
DBG1(DBG_CFG, "invalid end address: %s", msg->terminate_srcip.end);
start->destroy(start);
return;
}
chunk_end = end->get_address(end);
}
enumerator = charon->controller->create_ike_sa_enumerator(charon->controller);
while (enumerator->enumerate(enumerator, &ike_sa))
{
vip = ike_sa->get_virtual_ip(ike_sa, FALSE);
if (!vip)
{
continue;
}
if (!end)
{
if (!vip->ip_equals(vip, start))
{
continue;
}
}
else
{
chunk_vip = vip->get_address(vip);
if (chunk_vip.len != chunk_start.len ||
chunk_vip.len != chunk_end.len ||
memcmp(chunk_vip.ptr, chunk_start.ptr, chunk_vip.len) < 0 ||
memcmp(chunk_vip.ptr, chunk_end.ptr, chunk_vip.len) > 0)
{
continue;
}
}
/* schedule delete asynchronously */
charon->processor->queue_job(charon->processor, (job_t*)
delete_ike_sa_job_create(ike_sa->get_id(ike_sa), TRUE));
}
enumerator->destroy(enumerator);
start->destroy(start);
DESTROY_IF(end);
}
/**
* Implementation of stroke_control_t.purge_ike
*/
static void purge_ike(private_stroke_control_t *this, stroke_msg_t *msg, FILE *out)
{
enumerator_t *enumerator;
iterator_t *iterator;
ike_sa_t *ike_sa;
child_sa_t *child_sa;
linked_list_t *list;
uintptr_t del;
stroke_log_info_t info;
info.out = out;
info.level = msg->output_verbosity;
list = linked_list_create();
enumerator = charon->controller->create_ike_sa_enumerator(charon->controller);
while (enumerator->enumerate(enumerator, &ike_sa))
{
iterator = ike_sa->create_child_sa_iterator(ike_sa);
if (!iterator->iterate(iterator, (void**)&child_sa))
{
list->insert_last(list,
(void*)(uintptr_t)ike_sa->get_unique_id(ike_sa));
}
iterator->destroy(iterator);
}
enumerator->destroy(enumerator);
enumerator = list->create_enumerator(list);
while (enumerator->enumerate(enumerator, &del))
{
charon->controller->terminate_ike(charon->controller, del,
(controller_cb_t)stroke_log, &info);
}
enumerator->destroy(enumerator);
list->destroy(list);
}
/**
* Implementation of stroke_control_t.route.
*/
static void route(private_stroke_control_t *this, stroke_msg_t *msg, FILE *out)
{
peer_cfg_t *peer_cfg;
child_cfg_t *child_cfg;
peer_cfg = charon->backends->get_peer_cfg_by_name(charon->backends,
msg->route.name);
if (peer_cfg == NULL)
{
fprintf(out, "no config named '%s'\n", msg->route.name);
return;
}
if (peer_cfg->get_ike_version(peer_cfg) != 2)
{
peer_cfg->destroy(peer_cfg);
return;
}
child_cfg = get_child_from_peer(peer_cfg, msg->route.name);
if (child_cfg == NULL)
{
fprintf(out, "no child config named '%s'\n", msg->route.name);
peer_cfg->destroy(peer_cfg);
return;
}
if (charon->traps->install(charon->traps, peer_cfg, child_cfg))
{
fprintf(out, "configuration '%s' routed\n", msg->route.name);
}
else
{
fprintf(out, "routing configuration '%s' failed\n", msg->route.name);
}
peer_cfg->destroy(peer_cfg);
child_cfg->destroy(child_cfg);
}
/**
* Implementation of stroke_control_t.unroute.
*/
static void unroute(private_stroke_control_t *this, stroke_msg_t *msg, FILE *out)
{
child_sa_t *child_sa;
enumerator_t *enumerator;
u_int32_t id;
enumerator = charon->traps->create_enumerator(charon->traps);
while (enumerator->enumerate(enumerator, NULL, &child_sa))
{
if (streq(msg->unroute.name, child_sa->get_name(child_sa)))
{
id = child_sa->get_reqid(child_sa);
enumerator->destroy(enumerator);
charon->traps->uninstall(charon->traps, id);
fprintf(out, "configuration '%s' unrouted\n", msg->unroute.name);
return;
}
}
enumerator->destroy(enumerator);
fprintf(out, "configuration '%s' not found\n", msg->unroute.name);
}
/**
* Implementation of stroke_control_t.destroy
*/
static void destroy(private_stroke_control_t *this)
{
free(this);
}
/*
* see header file
*/
stroke_control_t *stroke_control_create()
{
private_stroke_control_t *this = malloc_thing(private_stroke_control_t);
this->public.initiate = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))initiate;
this->public.terminate = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))terminate;
this->public.terminate_srcip = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))terminate_srcip;
this->public.purge_ike = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))purge_ike;
this->public.route = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))route;
this->public.unroute = (void(*)(stroke_control_t*, stroke_msg_t *msg, FILE *out))unroute;
this->public.destroy = (void(*)(stroke_control_t*))destroy;
return &this->public;
}
@@ -0,0 +1,88 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_control stroke_control
* @{ @ingroup stroke
*/
#ifndef STROKE_CONTROL_H_
#define STROKE_CONTROL_H_
#include <stroke_msg.h>
#include <library.h>
#include <stdio.h>
typedef struct stroke_control_t stroke_control_t;
/**
* Process stroke control messages
*/
struct stroke_control_t {
/**
* Initiate a connection.
*
* @param msg stroke message
*/
void (*initiate)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Terminate a connection.
*
* @param msg stroke message
*/
void (*terminate)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Terminate a connection by peers virtual IP.
*
* @param msg stroke message
*/
void (*terminate_srcip)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Delete IKE_SAs without a CHILD_SA.
*
* @param msg stroke message
*/
void (*purge_ike)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Route a connection.
*
* @param msg stroke message
*/
void (*route)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Unroute a connection.
*
* @param msg stroke message
*/
void (*unroute)(stroke_control_t *this, stroke_msg_t *msg, FILE *out);
/**
* Destroy a stroke_control instance.
*/
void (*destroy)(stroke_control_t *this);
};
/**
* Create a stroke_control instance.
*/
stroke_control_t *stroke_control_create();
#endif /** STROKE_CONTROL_H_ @}*/
File diff suppressed because it is too large Load Diff
@@ -0,0 +1,84 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_cred stroke_cred
* @{ @ingroup stroke
*/
#ifndef STROKE_CRED_H_
#define STROKE_CRED_H_
#include <stdio.h>
#include <stroke_msg.h>
#include <credentials/credential_set.h>
#include <credentials/certificates/certificate.h>
typedef struct stroke_cred_t stroke_cred_t;
/**
* Stroke in-memory credential storage.
*/
struct stroke_cred_t {
/**
* Implements credential_set_t
*/
credential_set_t set;
/**
* Reread secrets from config files.
*
* @param msg stroke message
* @param prompt I/O channel to prompt for private key passhprase
*/
void (*reread)(stroke_cred_t *this, stroke_msg_t *msg, FILE *prompt);
/**
* Load a CA certificate, and serve it through the credential_set.
*
* @param filename file to load CA cert from
* @return reference to loaded certificate, or NULL
*/
certificate_t* (*load_ca)(stroke_cred_t *this, char *filename);
/**
* Load a peer certificate and serve it rhrough the credential_set.
*
* @param filename file to load peer cert from
* @return reference to loaded certificate, or NULL
*/
certificate_t* (*load_peer)(stroke_cred_t *this, char *filename);
/**
* Enable/Disable CRL caching to disk.
*
* @param enabled TRUE to enable, FALSE to disable
*/
void (*cachecrl)(stroke_cred_t *this, bool enabled);
/**
* Destroy a stroke_cred instance.
*/
void (*destroy)(stroke_cred_t *this);
};
/**
* Create a stroke_cred instance.
*/
stroke_cred_t *stroke_cred_create();
#endif /** STROKE_CRED_H_ @}*/
File diff suppressed because it is too large Load Diff
@@ -0,0 +1,74 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_list stroke_list
* @{ @ingroup stroke
*/
#ifndef STROKE_LIST_H_
#define STROKE_LIST_H_
#include "stroke_attribute.h"
#include <stroke_msg.h>
#include <library.h>
typedef struct stroke_list_t stroke_list_t;
/**
* Log status information to stroke console
*/
struct stroke_list_t {
/**
* List certificate information to stroke console.
*
* @param msg stroke message
* @param out stroke console stream
*/
void (*list)(stroke_list_t *this, stroke_msg_t *msg, FILE *out);
/**
* Log status information to stroke console.
*
* @param msg stroke message
* @param out stroke console stream
* @param all TRUE for "statusall"
*/
void (*status)(stroke_list_t *this, stroke_msg_t *msg, FILE *out, bool all);
/**
* Log pool leases to stroke console.
*
* @param msg stroke message
* @param out stroke console stream
*/
void (*leases)(stroke_list_t *this, stroke_msg_t *msg, FILE *out);
/**
* Destroy a stroke_list instance.
*/
void (*destroy)(stroke_list_t *this);
};
/**
* Create a stroke_list instance.
*
* @param attribute strokes attribute provider
*/
stroke_list_t *stroke_list_create(stroke_attribute_t *attribute);
#endif /** STROKE_LIST_H_ @}*/
@@ -0,0 +1,65 @@
/*
* Copyright (C) 2008 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 "stroke_plugin.h"
#include <library.h>
#include "stroke_socket.h"
typedef struct private_stroke_plugin_t private_stroke_plugin_t;
/**
* private data of stroke_plugin
*/
struct private_stroke_plugin_t {
/**
* public functions
*/
stroke_plugin_t public;
/**
* stroke socket, receives strokes
*/
stroke_socket_t *socket;
};
/**
* Implementation of stroke_plugin_t.destroy
*/
static void destroy(private_stroke_plugin_t *this)
{
this->socket->destroy(this->socket);
free(this);
}
/*
* see header file
*/
plugin_t *stroke_plugin_create()
{
private_stroke_plugin_t *this = malloc_thing(private_stroke_plugin_t);
this->public.plugin.destroy = (void(*)(plugin_t*))destroy;
this->socket = stroke_socket_create();
if (this->socket == NULL)
{
free(this);
return NULL;
}
return &this->public.plugin;
}
@@ -0,0 +1,45 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke stroke
* @ingroup cplugins
*
* @defgroup stroke_plugin stroke_plugin
* @{ @ingroup stroke
*/
#ifndef STROKE_PLUGIN_H_
#define STROKE_PLUGIN_H_
#include <plugins/plugin.h>
typedef struct stroke_plugin_t stroke_plugin_t;
/**
* strongSwan 2.x style configuration and control interface.
*
* Stroke is a home-brewed communication interface inspired by whack. It
* uses a unix socket (/var/run/charon.ctl).
*/
struct stroke_plugin_t {
/**
* implements plugin interface
*/
plugin_t plugin;
};
#endif /** STROKE_PLUGIN_H_ @}*/
@@ -0,0 +1,140 @@
/*
* Copyright (C) 2008 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 "stroke_shared_key.h"
#include <utils/linked_list.h>
typedef struct private_stroke_shared_key_t private_stroke_shared_key_t;
/**
* private data of shared_key
*/
struct private_stroke_shared_key_t {
/**
* implements shared_key_t
*/
stroke_shared_key_t public;
/**
* type of this key
*/
shared_key_type_t type;
/**
* data of the key
*/
chunk_t key;
/**
* list of key owners, as identification_t
*/
linked_list_t *owners;
/**
* reference counter
*/
refcount_t ref;
};
/**
* Implementation of shared_key_t.get_type.
*/
static shared_key_type_t get_type(private_stroke_shared_key_t *this)
{
return this->type;
}
/**
* Implementation of shared_key_t.get_ref.
*/
static private_stroke_shared_key_t* get_ref(private_stroke_shared_key_t *this)
{
ref_get(&this->ref);
return this;
}
/**
* Implementation of shared_key_t.get_key.
*/
static chunk_t get_key(private_stroke_shared_key_t *this)
{
return this->key;
}
/**
* Implementation of stroke_shared_key_t.has_owner.
*/
static id_match_t has_owner(private_stroke_shared_key_t *this, identification_t *owner)
{
enumerator_t *enumerator;
id_match_t match, best = ID_MATCH_NONE;
identification_t *current;
enumerator = this->owners->create_enumerator(this->owners);
while (enumerator->enumerate(enumerator, &current))
{
match = owner->matches(owner, current);
if (match > best)
{
best = match;
}
}
enumerator->destroy(enumerator);
return best;
}
/**
* Implementation of stroke_shared_key_t.add_owner.
*/
static void add_owner(private_stroke_shared_key_t *this, identification_t *owner)
{
this->owners->insert_last(this->owners, owner);
}
/**
* Implementation of stroke_shared_key_t.destroy
*/
static void destroy(private_stroke_shared_key_t *this)
{
if (ref_put(&this->ref))
{
this->owners->destroy_offset(this->owners, offsetof(identification_t, destroy));
chunk_free(&this->key);
free(this);
}
}
/**
* create a shared key
*/
stroke_shared_key_t *stroke_shared_key_create(shared_key_type_t type, chunk_t key)
{
private_stroke_shared_key_t *this = malloc_thing(private_stroke_shared_key_t);
this->public.shared.get_type = (shared_key_type_t(*)(shared_key_t*))get_type;
this->public.shared.get_key = (chunk_t(*)(shared_key_t*))get_key;
this->public.shared.get_ref = (shared_key_t*(*)(shared_key_t*))get_ref;
this->public.shared.destroy = (void(*)(shared_key_t*))destroy;
this->public.add_owner = (void(*)(stroke_shared_key_t*, identification_t *owner))add_owner;
this->public.has_owner = (id_match_t(*)(stroke_shared_key_t*, identification_t *owner))has_owner;
this->owners = linked_list_create();
this->type = type;
this->key = key;
this->ref = 1;
return &this->public;
}
@@ -0,0 +1,60 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_shared_key stroke_shared_key
* @{ @ingroup stroke
*/
#ifndef STROKE_SHARED_KEY_H_
#define STROKE_SHARED_KEY_H_
#include <utils/identification.h>
#include <credentials/keys/shared_key.h>
typedef struct stroke_shared_key_t stroke_shared_key_t;
/**
* Shared key implementation for keys read from ipsec.secrets
*/
struct stroke_shared_key_t {
/**
* Implements the shared_key_t interface.
*/
shared_key_t shared;
/**
* Add an owner to the key.
*
* @param owner owner to add
*/
void (*add_owner)(stroke_shared_key_t *this, identification_t *owner);
/**
* Check if a key has a specific owner.
*
* @param owner owner to check
* @return best match found
*/
id_match_t (*has_owner)(stroke_shared_key_t *this, identification_t *owner);
};
/**
* Create a stroke_shared_key instance.
*/
stroke_shared_key_t *stroke_shared_key_create(shared_key_type_t type, chunk_t key);
#endif /** STROKE_SHARED_KEY_H_ @}*/
@@ -0,0 +1,670 @@
/*
* Copyright (C) 2008 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 "stroke_socket.h"
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <processing/jobs/callback_job.h>
#include <daemon.h>
#include <threading/thread.h>
#include "stroke_config.h"
#include "stroke_control.h"
#include "stroke_cred.h"
#include "stroke_ca.h"
#include "stroke_attribute.h"
#include "stroke_list.h"
typedef struct stroke_job_context_t stroke_job_context_t;
typedef struct private_stroke_socket_t private_stroke_socket_t;
/**
* private data of stroke_socket
*/
struct private_stroke_socket_t {
/**
* public functions
*/
stroke_socket_t public;
/**
* Unix socket to listen for strokes
*/
int socket;
/**
* job accepting stroke messages
*/
callback_job_t *job;
/**
* configuration backend
*/
stroke_config_t *config;
/**
* attribute provider
*/
stroke_attribute_t *attribute;
/**
* controller to control daemon
*/
stroke_control_t *control;
/**
* credential set
*/
stroke_cred_t *cred;
/**
* CA sections
*/
stroke_ca_t *ca;
/**
* Status information logging
*/
stroke_list_t *list;
};
/**
* job context to pass to processing thread
*/
struct stroke_job_context_t {
/**
* file descriptor to read from
*/
int fd;
/**
* global stroke interface
*/
private_stroke_socket_t *this;
};
/**
* Helper function which corrects the string pointers
* in a stroke_msg_t. Strings in a stroke_msg sent over "wire"
* contains RELATIVE addresses (relative to the beginning of the
* stroke_msg). They must be corrected if they reach our address
* space...
*/
static void pop_string(stroke_msg_t *msg, char **string)
{
if (*string == NULL)
{
return;
}
/* check for sanity of string pointer and string */
if (string < (char**)msg ||
string > (char**)msg + sizeof(stroke_msg_t) ||
(unsigned long)*string < (unsigned long)((char*)msg->buffer - (char*)msg) ||
(unsigned long)*string > msg->length)
{
*string = "(invalid pointer in stroke msg)";
}
else
{
*string = (char*)msg + (unsigned long)*string;
}
}
/**
* Pop the strings of a stroke_end_t struct and log them for debugging purposes
*/
static void pop_end(stroke_msg_t *msg, const char* label, stroke_end_t *end)
{
pop_string(msg, &end->address);
pop_string(msg, &end->subnets);
pop_string(msg, &end->sourceip);
pop_string(msg, &end->auth);
pop_string(msg, &end->auth2);
pop_string(msg, &end->id);
pop_string(msg, &end->id2);
pop_string(msg, &end->cert);
pop_string(msg, &end->cert2);
pop_string(msg, &end->ca);
pop_string(msg, &end->ca2);
pop_string(msg, &end->groups);
pop_string(msg, &end->updown);
DBG2(DBG_CFG, " %s=%s", label, end->address);
DBG2(DBG_CFG, " %ssubnet=%s", label, end->subnets);
DBG2(DBG_CFG, " %ssourceip=%s", label, end->sourceip);
DBG2(DBG_CFG, " %sauth=%s", label, end->auth);
DBG2(DBG_CFG, " %sauth2=%s", label, end->auth2);
DBG2(DBG_CFG, " %sid=%s", label, end->id);
DBG2(DBG_CFG, " %sid2=%s", label, end->id2);
DBG2(DBG_CFG, " %scert=%s", label, end->cert);
DBG2(DBG_CFG, " %scert2=%s", label, end->cert2);
DBG2(DBG_CFG, " %sca=%s", label, end->ca);
DBG2(DBG_CFG, " %sca2=%s", label, end->ca2);
DBG2(DBG_CFG, " %sgroups=%s", label, end->groups);
DBG2(DBG_CFG, " %supdown=%s", label, end->updown);
}
/**
* Add a connection to the configuration list
*/
static void stroke_add_conn(private_stroke_socket_t *this, stroke_msg_t *msg)
{
pop_string(msg, &msg->add_conn.name);
DBG1(DBG_CFG, "received stroke: add connection '%s'", msg->add_conn.name);
DBG2(DBG_CFG, "conn %s", msg->add_conn.name);
pop_end(msg, "left", &msg->add_conn.me);
pop_end(msg, "right", &msg->add_conn.other);
pop_string(msg, &msg->add_conn.eap_identity);
pop_string(msg, &msg->add_conn.algorithms.ike);
pop_string(msg, &msg->add_conn.algorithms.esp);
pop_string(msg, &msg->add_conn.ikeme.mediated_by);
pop_string(msg, &msg->add_conn.ikeme.peerid);
DBG2(DBG_CFG, " eap_identity=%s", msg->add_conn.eap_identity);
DBG2(DBG_CFG, " ike=%s", msg->add_conn.algorithms.ike);
DBG2(DBG_CFG, " esp=%s", msg->add_conn.algorithms.esp);
DBG2(DBG_CFG, " mediation=%s", msg->add_conn.ikeme.mediation ? "yes" : "no");
DBG2(DBG_CFG, " mediated_by=%s", msg->add_conn.ikeme.mediated_by);
DBG2(DBG_CFG, " me_peerid=%s", msg->add_conn.ikeme.peerid);
this->config->add(this->config, msg);
this->attribute->add_pool(this->attribute, msg);
}
/**
* Delete a connection from the list
*/
static void stroke_del_conn(private_stroke_socket_t *this, stroke_msg_t *msg)
{
pop_string(msg, &msg->del_conn.name);
DBG1(DBG_CFG, "received stroke: delete connection '%s'", msg->del_conn.name);
this->config->del(this->config, msg);
this->attribute->del_pool(this->attribute, msg);
}
/**
* initiate a connection by name
*/
static void stroke_initiate(private_stroke_socket_t *this, stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->initiate.name);
DBG1(DBG_CFG, "received stroke: initiate '%s'", msg->initiate.name);
this->control->initiate(this->control, msg, out);
}
/**
* terminate a connection by name
*/
static void stroke_terminate(private_stroke_socket_t *this, stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->terminate.name);
DBG1(DBG_CFG, "received stroke: terminate '%s'", msg->terminate.name);
this->control->terminate(this->control, msg, out);
}
/**
* terminate a connection by peers virtual IP
*/
static void stroke_terminate_srcip(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->terminate_srcip.start);
pop_string(msg, &msg->terminate_srcip.end);
DBG1(DBG_CFG, "received stroke: terminate-srcip %s-%s",
msg->terminate_srcip.start, msg->terminate_srcip.end);
this->control->terminate_srcip(this->control, msg, out);
}
/**
* route a policy (install SPD entries)
*/
static void stroke_route(private_stroke_socket_t *this, stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->route.name);
DBG1(DBG_CFG, "received stroke: route '%s'", msg->route.name);
this->control->route(this->control, msg, out);
}
/**
* unroute a policy
*/
static void stroke_unroute(private_stroke_socket_t *this, stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->terminate.name);
DBG1(DBG_CFG, "received stroke: unroute '%s'", msg->route.name);
this->control->unroute(this->control, msg, out);
}
/**
* Add a ca information record to the cainfo list
*/
static void stroke_add_ca(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->add_ca.name);
DBG1(DBG_CFG, "received stroke: add ca '%s'", msg->add_ca.name);
pop_string(msg, &msg->add_ca.cacert);
pop_string(msg, &msg->add_ca.crluri);
pop_string(msg, &msg->add_ca.crluri2);
pop_string(msg, &msg->add_ca.ocspuri);
pop_string(msg, &msg->add_ca.ocspuri2);
pop_string(msg, &msg->add_ca.certuribase);
DBG2(DBG_CFG, "ca %s", msg->add_ca.name);
DBG2(DBG_CFG, " cacert=%s", msg->add_ca.cacert);
DBG2(DBG_CFG, " crluri=%s", msg->add_ca.crluri);
DBG2(DBG_CFG, " crluri2=%s", msg->add_ca.crluri2);
DBG2(DBG_CFG, " ocspuri=%s", msg->add_ca.ocspuri);
DBG2(DBG_CFG, " ocspuri2=%s", msg->add_ca.ocspuri2);
DBG2(DBG_CFG, " certuribase=%s", msg->add_ca.certuribase);
this->ca->add(this->ca, msg);
}
/**
* Delete a ca information record from the cainfo list
*/
static void stroke_del_ca(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->del_ca.name);
DBG1(DBG_CFG, "received stroke: delete ca '%s'", msg->del_ca.name);
this->ca->del(this->ca, msg);
}
/**
* show status of daemon
*/
static void stroke_status(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out, bool all)
{
pop_string(msg, &(msg->status.name));
this->list->status(this->list, msg, out, all);
}
/**
* list various information
*/
static void stroke_list(private_stroke_socket_t *this, stroke_msg_t *msg, FILE *out)
{
if (msg->list.flags & LIST_CAINFOS)
{
this->ca->list(this->ca, msg, out);
}
this->list->list(this->list, msg, out);
}
/**
* reread various information
*/
static void stroke_reread(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
this->cred->reread(this->cred, msg, out);
}
/**
* purge various information
*/
static void stroke_purge(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
if (msg->purge.flags & PURGE_OCSP)
{
charon->credentials->flush_cache(charon->credentials,
CERT_X509_OCSP_RESPONSE);
}
if (msg->purge.flags & PURGE_IKE)
{
this->control->purge_ike(this->control, msg, out);
}
}
/**
* list pool leases
*/
static void stroke_leases(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
pop_string(msg, &msg->leases.pool);
pop_string(msg, &msg->leases.address);
this->list->leases(this->list, msg, out);
}
debug_t get_group_from_name(char *type)
{
if (strcaseeq(type, "any")) return DBG_ANY;
else if (strcaseeq(type, "mgr")) return DBG_MGR;
else if (strcaseeq(type, "ike")) return DBG_IKE;
else if (strcaseeq(type, "chd")) return DBG_CHD;
else if (strcaseeq(type, "job")) return DBG_JOB;
else if (strcaseeq(type, "cfg")) return DBG_CFG;
else if (strcaseeq(type, "knl")) return DBG_KNL;
else if (strcaseeq(type, "net")) return DBG_NET;
else if (strcaseeq(type, "enc")) return DBG_ENC;
else if (strcaseeq(type, "lib")) return DBG_LIB;
else return -1;
}
/**
* set the verbosity debug output
*/
static void stroke_loglevel(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
enumerator_t *enumerator;
sys_logger_t *sys_logger;
file_logger_t *file_logger;
debug_t group;
pop_string(msg, &(msg->loglevel.type));
DBG1(DBG_CFG, "received stroke: loglevel %d for %s",
msg->loglevel.level, msg->loglevel.type);
group = get_group_from_name(msg->loglevel.type);
if (group < 0)
{
fprintf(out, "invalid type (%s)!\n", msg->loglevel.type);
return;
}
/* we set the loglevel on ALL sys- and file-loggers */
enumerator = charon->sys_loggers->create_enumerator(charon->sys_loggers);
while (enumerator->enumerate(enumerator, &sys_logger))
{
sys_logger->set_level(sys_logger, group, msg->loglevel.level);
}
enumerator->destroy(enumerator);
enumerator = charon->file_loggers->create_enumerator(charon->file_loggers);
while (enumerator->enumerate(enumerator, &file_logger))
{
file_logger->set_level(file_logger, group, msg->loglevel.level);
}
enumerator->destroy(enumerator);
}
/**
* set various config options
*/
static void stroke_config(private_stroke_socket_t *this,
stroke_msg_t *msg, FILE *out)
{
this->cred->cachecrl(this->cred, msg->config.cachecrl);
}
/**
* destroy a job context
*/
static void stroke_job_context_destroy(stroke_job_context_t *this)
{
if (this->fd)
{
close(this->fd);
}
free(this);
}
/**
* process a stroke request from the socket pointed by "fd"
*/
static job_requeue_t process(stroke_job_context_t *ctx)
{
stroke_msg_t *msg;
u_int16_t msg_length;
ssize_t bytes_read;
FILE *out;
private_stroke_socket_t *this = ctx->this;
int strokefd = ctx->fd;
/* peek the length */
bytes_read = recv(strokefd, &msg_length, sizeof(msg_length), MSG_PEEK);
if (bytes_read != sizeof(msg_length))
{
DBG1(DBG_CFG, "reading length of stroke message failed: %s",
strerror(errno));
return JOB_REQUEUE_NONE;
}
/* read message */
msg = alloca(msg_length);
bytes_read = recv(strokefd, msg, msg_length, 0);
if (bytes_read != msg_length)
{
DBG1(DBG_CFG, "reading stroke message failed: %s", strerror(errno));
return JOB_REQUEUE_NONE;
}
out = fdopen(strokefd, "w+");
if (out == NULL)
{
DBG1(DBG_CFG, "opening stroke output channel failed: %s", strerror(errno));
return JOB_REQUEUE_NONE;
}
DBG3(DBG_CFG, "stroke message %b", (void*)msg, msg_length);
switch (msg->type)
{
case STR_INITIATE:
stroke_initiate(this, msg, out);
break;
case STR_ROUTE:
stroke_route(this, msg, out);
break;
case STR_UNROUTE:
stroke_unroute(this, msg, out);
break;
case STR_TERMINATE:
stroke_terminate(this, msg, out);
break;
case STR_TERMINATE_SRCIP:
stroke_terminate_srcip(this, msg, out);
break;
case STR_STATUS:
stroke_status(this, msg, out, FALSE);
break;
case STR_STATUS_ALL:
stroke_status(this, msg, out, TRUE);
break;
case STR_ADD_CONN:
stroke_add_conn(this, msg);
break;
case STR_DEL_CONN:
stroke_del_conn(this, msg);
break;
case STR_ADD_CA:
stroke_add_ca(this, msg, out);
break;
case STR_DEL_CA:
stroke_del_ca(this, msg, out);
break;
case STR_LOGLEVEL:
stroke_loglevel(this, msg, out);
break;
case STR_CONFIG:
stroke_config(this, msg, out);
break;
case STR_LIST:
stroke_list(this, msg, out);
break;
case STR_REREAD:
stroke_reread(this, msg, out);
break;
case STR_PURGE:
stroke_purge(this, msg, out);
break;
case STR_LEASES:
stroke_leases(this, msg, out);
break;
default:
DBG1(DBG_CFG, "received unknown stroke");
break;
}
fclose(out);
/* fclose() closes underlying FD */
ctx->fd = 0;
return JOB_REQUEUE_NONE;
}
/**
* Implementation of private_stroke_socket_t.stroke_receive.
*/
static job_requeue_t receive(private_stroke_socket_t *this)
{
struct sockaddr_un strokeaddr;
int strokeaddrlen = sizeof(strokeaddr);
int strokefd;
bool oldstate;
callback_job_t *job;
stroke_job_context_t *ctx;
oldstate = thread_cancelability(TRUE);
strokefd = accept(this->socket, (struct sockaddr *)&strokeaddr, &strokeaddrlen);
thread_cancelability(oldstate);
if (strokefd < 0)
{
DBG1(DBG_CFG, "accepting stroke connection failed: %s", strerror(errno));
return JOB_REQUEUE_FAIR;
}
ctx = malloc_thing(stroke_job_context_t);
ctx->fd = strokefd;
ctx->this = this;
job = callback_job_create((callback_job_cb_t)process,
ctx, (void*)stroke_job_context_destroy, this->job);
charon->processor->queue_job(charon->processor, (job_t*)job);
return JOB_REQUEUE_FAIR;
}
/**
* initialize and open stroke socket
*/
static bool open_socket(private_stroke_socket_t *this)
{
struct sockaddr_un socket_addr;
mode_t old;
socket_addr.sun_family = AF_UNIX;
strcpy(socket_addr.sun_path, STROKE_SOCKET);
/* set up unix socket */
this->socket = socket(AF_UNIX, SOCK_STREAM, 0);
if (this->socket == -1)
{
DBG1(DBG_CFG, "could not create stroke socket");
return FALSE;
}
unlink(socket_addr.sun_path);
old = umask(~(S_IRWXU | S_IRWXG));
if (bind(this->socket, (struct sockaddr *)&socket_addr, sizeof(socket_addr)) < 0)
{
DBG1(DBG_CFG, "could not bind stroke socket: %s", strerror(errno));
close(this->socket);
return FALSE;
}
umask(old);
if (chown(socket_addr.sun_path, charon->uid, charon->gid) != 0)
{
DBG1(DBG_CFG, "changing stroke socket permissions failed: %s",
strerror(errno));
}
if (listen(this->socket, 10) < 0)
{
DBG1(DBG_CFG, "could not listen on stroke socket: %s", strerror(errno));
close(this->socket);
unlink(socket_addr.sun_path);
return FALSE;
}
return TRUE;
}
/**
* Implementation of stroke_socket_t.destroy
*/
static void destroy(private_stroke_socket_t *this)
{
this->job->cancel(this->job);
charon->credentials->remove_set(charon->credentials, &this->ca->set);
charon->credentials->remove_set(charon->credentials, &this->cred->set);
charon->backends->remove_backend(charon->backends, &this->config->backend);
lib->attributes->remove_provider(lib->attributes, &this->attribute->provider);
this->cred->destroy(this->cred);
this->ca->destroy(this->ca);
this->config->destroy(this->config);
this->attribute->destroy(this->attribute);
this->control->destroy(this->control);
this->list->destroy(this->list);
free(this);
}
/*
* see header file
*/
stroke_socket_t *stroke_socket_create()
{
private_stroke_socket_t *this = malloc_thing(private_stroke_socket_t);
this->public.destroy = (void(*)(stroke_socket_t*))destroy;
if (!open_socket(this))
{
free(this);
return NULL;
}
this->cred = stroke_cred_create();
this->attribute = stroke_attribute_create();
this->ca = stroke_ca_create(this->cred);
this->config = stroke_config_create(this->ca, this->cred);
this->control = stroke_control_create();
this->list = stroke_list_create(this->attribute);
charon->credentials->add_set(charon->credentials, &this->ca->set);
charon->credentials->add_set(charon->credentials, &this->cred->set);
charon->backends->add_backend(charon->backends, &this->config->backend);
lib->attributes->add_provider(lib->attributes, &this->attribute->provider);
this->job = callback_job_create((callback_job_cb_t)receive,
this, NULL, NULL);
charon->processor->queue_job(charon->processor, (job_t*)this->job);
return &this->public;
}
@@ -0,0 +1,42 @@
/*
* Copyright (C) 2008 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.
*/
/**
* @defgroup stroke_socket stroke_socket
* @{ @ingroup stroke
*/
#ifndef STROKE_SOCKET_H_
#define STROKE_SOCKET_H_
typedef struct stroke_socket_t stroke_socket_t;
/**
* Stroke socket, opens UNIX communication socket, reads and dispatches.
*/
struct stroke_socket_t {
/**
* Destroy a stroke_socket instance.
*/
void (*destroy)(stroke_socket_t *this);
};
/**
* Create a stroke_socket instance.
*/
stroke_socket_t *stroke_socket_create();
#endif /** STROKE_SOCKET_H_ @}*/