356 lines
10 KiB
C
356 lines
10 KiB
C
/*
|
|
* Copyright (C) 2007-2015 Tobias Brunner
|
|
* Copyright (C) 2006 Martin Willi
|
|
* HSR 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 <unistd.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include <credentials/auth_cfg.h>
|
|
|
|
#include <library.h>
|
|
#include <utils/debug.h>
|
|
|
|
#include <stroke_msg.h>
|
|
|
|
#include "starterstroke.h"
|
|
#include "confread.h"
|
|
#include "files.h"
|
|
|
|
#define IPV4_LEN 4
|
|
#define IPV6_LEN 16
|
|
|
|
static stroke_msg_t *create_stroke_msg(int type)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
INIT(msg,
|
|
.type = type,
|
|
.length = offsetof(stroke_msg_t, buffer),
|
|
);
|
|
return msg;
|
|
}
|
|
|
|
#define push_string(msg, field, str) \
|
|
push_string_impl(msg, offsetof(stroke_msg_t, field), str)
|
|
#define push_string_end(msg, offset, field, str) \
|
|
push_string_impl(msg, offset + offsetof(stroke_end_t, field), str)
|
|
|
|
static void push_string_impl(stroke_msg_t **msg, size_t offset, char *string)
|
|
{
|
|
size_t cur_len = (*msg)->length, str_len;
|
|
|
|
if (!string)
|
|
{
|
|
return;
|
|
}
|
|
str_len = strlen(string) + 1;
|
|
if (cur_len + str_len >= UINT16_MAX)
|
|
{
|
|
(*msg)->length = UINT16_MAX;
|
|
return;
|
|
}
|
|
while (cur_len + str_len > sizeof(stroke_msg_t) + (*msg)->buflen)
|
|
{
|
|
*msg = realloc(*msg, sizeof(stroke_msg_t) + (*msg)->buflen +
|
|
STROKE_BUF_LEN_INC);
|
|
(*msg)->buflen += STROKE_BUF_LEN_INC;
|
|
}
|
|
(*msg)->length += str_len;
|
|
strcpy((char*)*msg + cur_len, string);
|
|
*(char**)((char*)*msg + offset) = (char*)cur_len;
|
|
}
|
|
|
|
static int send_stroke_msg(stroke_msg_t *msg)
|
|
{
|
|
stream_t *stream;
|
|
char *uri, buffer[64];
|
|
int count;
|
|
|
|
if (msg->length == UINT16_MAX)
|
|
{
|
|
DBG1(DBG_APP, "stroke message exceeds maximum buffer size");
|
|
free(msg);
|
|
return -1;
|
|
}
|
|
|
|
/* starter is not called from commandline, and therefore absolutely silent */
|
|
msg->output_verbosity = -1;
|
|
|
|
uri = lib->settings->get_str(lib->settings, "%s.plugins.stroke.socket",
|
|
"unix://" CHARON_CTL_FILE, daemon_name);
|
|
stream = lib->streams->connect(lib->streams, uri);
|
|
if (!stream)
|
|
{
|
|
DBG1(DBG_APP, "failed to connect to stroke socket '%s'", uri);
|
|
free(msg);
|
|
return -1;
|
|
}
|
|
|
|
if (!stream->write_all(stream, msg, msg->length))
|
|
{
|
|
DBG1(DBG_APP, "sending stroke message failed");
|
|
stream->destroy(stream);
|
|
free(msg);
|
|
return -1;
|
|
}
|
|
while ((count = stream->read(stream, buffer, sizeof(buffer)-1, TRUE)) > 0)
|
|
{
|
|
buffer[count] = '\0';
|
|
DBG1(DBG_APP, "%s", buffer);
|
|
}
|
|
if (count < 0)
|
|
{
|
|
DBG1(DBG_APP, "reading stroke response failed");
|
|
}
|
|
stream->destroy(stream);
|
|
free(msg);
|
|
return 0;
|
|
}
|
|
|
|
static char* connection_name(starter_conn_t *conn)
|
|
{
|
|
/* if connection name is '%auto', create a new name like conn_xxxxx */
|
|
static char buf[32];
|
|
|
|
if (streq(conn->name, "%auto"))
|
|
{
|
|
sprintf(buf, "conn_%lu", conn->id);
|
|
return buf;
|
|
}
|
|
return conn->name;
|
|
}
|
|
|
|
static void add_end(stroke_msg_t **msg, size_t offset, starter_end_t *conn_end)
|
|
{
|
|
stroke_end_t *msg_end;
|
|
|
|
push_string_end(msg, offset, auth, conn_end->auth);
|
|
push_string_end(msg, offset, auth2, conn_end->auth2);
|
|
push_string_end(msg, offset, id, conn_end->id);
|
|
push_string_end(msg, offset, id2, conn_end->id2);
|
|
push_string_end(msg, offset, rsakey, conn_end->rsakey);
|
|
push_string_end(msg, offset, cert, conn_end->cert);
|
|
push_string_end(msg, offset, cert2, conn_end->cert2);
|
|
push_string_end(msg, offset, cert_policy, conn_end->cert_policy);
|
|
push_string_end(msg, offset, ca, conn_end->ca);
|
|
push_string_end(msg, offset, ca2, conn_end->ca2);
|
|
push_string_end(msg, offset, groups, conn_end->groups);
|
|
push_string_end(msg, offset, groups2, conn_end->groups2);
|
|
push_string_end(msg, offset, updown, conn_end->updown);
|
|
if (conn_end->host)
|
|
{
|
|
push_string_end(msg, offset, address, conn_end->host);
|
|
}
|
|
else
|
|
{
|
|
push_string_end(msg, offset, address, "%any");
|
|
}
|
|
push_string_end(msg, offset, subnets, conn_end->subnet);
|
|
push_string_end(msg, offset, sourceip, conn_end->sourceip);
|
|
push_string_end(msg, offset, dns, conn_end->dns);
|
|
|
|
/* we can't assign it earlier as msg might change */
|
|
msg_end = (stroke_end_t*)((char*)(*msg) + offset);
|
|
msg_end->ikeport = conn_end->ikeport;
|
|
msg_end->sendcert = conn_end->sendcert;
|
|
msg_end->hostaccess = conn_end->hostaccess;
|
|
msg_end->tohost = !conn_end->subnet;
|
|
msg_end->allow_any = conn_end->allow_any;
|
|
msg_end->protocol = conn_end->protocol;
|
|
msg_end->from_port = conn_end->from_port;
|
|
msg_end->to_port = conn_end->to_port;
|
|
}
|
|
|
|
int starter_stroke_add_conn(starter_config_t *cfg, starter_conn_t *conn)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_ADD_CONN);
|
|
msg->add_conn.version = conn->keyexchange;
|
|
push_string(&msg, add_conn.name, connection_name(conn));
|
|
push_string(&msg, add_conn.eap_identity, conn->eap_identity);
|
|
push_string(&msg, add_conn.aaa_identity, conn->aaa_identity);
|
|
push_string(&msg, add_conn.xauth_identity, conn->xauth_identity);
|
|
|
|
msg->add_conn.mode = conn->mode;
|
|
msg->add_conn.proxy_mode = conn->proxy_mode;
|
|
|
|
if (!(conn->options & SA_OPTION_DONT_REKEY))
|
|
{
|
|
msg->add_conn.rekey.reauth = !(conn->options & SA_OPTION_DONT_REAUTH);
|
|
msg->add_conn.rekey.ipsec_lifetime = conn->sa_ipsec_life_seconds;
|
|
msg->add_conn.rekey.ike_lifetime = conn->sa_ike_life_seconds;
|
|
msg->add_conn.rekey.margin = conn->sa_rekey_margin;
|
|
msg->add_conn.rekey.life_bytes = conn->sa_ipsec_life_bytes;
|
|
msg->add_conn.rekey.margin_bytes = conn->sa_ipsec_margin_bytes;
|
|
msg->add_conn.rekey.life_packets = conn->sa_ipsec_life_packets;
|
|
msg->add_conn.rekey.margin_packets = conn->sa_ipsec_margin_packets;
|
|
msg->add_conn.rekey.fuzz = conn->sa_rekey_fuzz;
|
|
}
|
|
msg->add_conn.rekey.tries = conn->sa_keying_tries;
|
|
|
|
msg->add_conn.mobike = conn->options & SA_OPTION_MOBIKE;
|
|
msg->add_conn.force_encap = conn->options & SA_OPTION_FORCE_ENCAP;
|
|
msg->add_conn.fragmentation = conn->fragmentation;
|
|
msg->add_conn.ikedscp = conn->ikedscp;
|
|
msg->add_conn.ipcomp = conn->options & SA_OPTION_COMPRESS;
|
|
msg->add_conn.install_policy = conn->install_policy;
|
|
msg->add_conn.aggressive = conn->aggressive;
|
|
msg->add_conn.pushmode = conn->options & SA_OPTION_MODECFG_PUSH;
|
|
msg->add_conn.crl_policy = (crl_policy_t)cfg->setup.strictcrlpolicy;
|
|
msg->add_conn.unique = cfg->setup.uniqueids;
|
|
push_string(&msg, add_conn.algorithms.ike, conn->ike);
|
|
push_string(&msg, add_conn.algorithms.esp, conn->esp);
|
|
push_string(&msg, add_conn.algorithms.ah, conn->ah);
|
|
msg->add_conn.dpd.delay = conn->dpd_delay;
|
|
msg->add_conn.dpd.timeout = conn->dpd_timeout;
|
|
msg->add_conn.dpd.action = conn->dpd_action;
|
|
msg->add_conn.close_action = conn->close_action;
|
|
msg->add_conn.sha256_96 = conn->sha256_96;
|
|
msg->add_conn.inactivity = conn->inactivity;
|
|
msg->add_conn.ikeme.mediation = conn->me_mediation;
|
|
push_string(&msg, add_conn.ikeme.mediated_by, conn->me_mediated_by);
|
|
push_string(&msg, add_conn.ikeme.peerid, conn->me_peerid);
|
|
msg->add_conn.reqid = conn->reqid;
|
|
msg->add_conn.replay_window = conn->replay_window;
|
|
msg->add_conn.mark_in.value = conn->mark_in.value;
|
|
msg->add_conn.mark_in.mask = conn->mark_in.mask;
|
|
msg->add_conn.mark_out.value = conn->mark_out.value;
|
|
msg->add_conn.mark_out.mask = conn->mark_out.mask;
|
|
msg->add_conn.tfc = conn->tfc;
|
|
|
|
add_end(&msg, offsetof(stroke_msg_t, add_conn.me), &conn->left);
|
|
add_end(&msg, offsetof(stroke_msg_t, add_conn.other), &conn->right);
|
|
|
|
if (!msg->add_conn.me.auth && !msg->add_conn.other.auth &&
|
|
conn->authby)
|
|
{ /* leftauth/rightauth not set, use legacy options */
|
|
if (streq(conn->authby, "rsa") || streq(conn->authby, "rsasig") ||
|
|
streq(conn->authby, "ecdsa") || streq(conn->authby, "ecdsasig") ||
|
|
streq(conn->authby, "pubkey"))
|
|
{
|
|
push_string(&msg, add_conn.me.auth, "pubkey");
|
|
push_string(&msg, add_conn.other.auth, "pubkey");
|
|
}
|
|
else if (streq(conn->authby, "secret") || streq(conn->authby, "psk"))
|
|
{
|
|
push_string(&msg, add_conn.me.auth, "psk");
|
|
push_string(&msg, add_conn.other.auth, "psk");
|
|
}
|
|
else if (streq(conn->authby, "xauthrsasig"))
|
|
{
|
|
push_string(&msg, add_conn.me.auth, "pubkey");
|
|
push_string(&msg, add_conn.other.auth, "pubkey");
|
|
if (conn->options & SA_OPTION_XAUTH_SERVER)
|
|
{
|
|
push_string(&msg, add_conn.other.auth2, "xauth");
|
|
}
|
|
else
|
|
{
|
|
push_string(&msg, add_conn.me.auth2, "xauth");
|
|
}
|
|
}
|
|
else if (streq(conn->authby, "xauthpsk"))
|
|
{
|
|
push_string(&msg, add_conn.me.auth, "psk");
|
|
push_string(&msg, add_conn.other.auth, "psk");
|
|
if (conn->options & SA_OPTION_XAUTH_SERVER)
|
|
{
|
|
push_string(&msg, add_conn.other.auth2, "xauth");
|
|
}
|
|
else
|
|
{
|
|
push_string(&msg, add_conn.me.auth2, "xauth");
|
|
}
|
|
}
|
|
}
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_del_conn(starter_conn_t *conn)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_DEL_CONN);
|
|
push_string(&msg, del_conn.name, connection_name(conn));
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_route_conn(starter_conn_t *conn)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_ROUTE);
|
|
push_string(&msg, route.name, connection_name(conn));
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_unroute_conn(starter_conn_t *conn)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_UNROUTE);
|
|
push_string(&msg, route.name, connection_name(conn));
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_initiate_conn(starter_conn_t *conn)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_INITIATE);
|
|
push_string(&msg, initiate.name, connection_name(conn));
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_add_ca(starter_ca_t *ca)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_ADD_CA);
|
|
push_string(&msg, add_ca.name, ca->name);
|
|
push_string(&msg, add_ca.cacert, ca->cacert);
|
|
push_string(&msg, add_ca.crluri, ca->crluri);
|
|
push_string(&msg, add_ca.crluri2, ca->crluri2);
|
|
push_string(&msg, add_ca.ocspuri, ca->ocspuri);
|
|
push_string(&msg, add_ca.ocspuri2, ca->ocspuri2);
|
|
push_string(&msg, add_ca.certuribase, ca->certuribase);
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_del_ca(starter_ca_t *ca)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
msg = create_stroke_msg(STR_DEL_CA);
|
|
push_string(&msg, del_ca.name, ca->name);
|
|
return send_stroke_msg(msg);
|
|
}
|
|
|
|
int starter_stroke_configure(starter_config_t *cfg)
|
|
{
|
|
stroke_msg_t *msg;
|
|
|
|
if (cfg->setup.cachecrls)
|
|
{
|
|
msg = create_stroke_msg(STR_CONFIG);
|
|
msg->config.cachecrl = 1;
|
|
return send_stroke_msg(msg);
|
|
}
|
|
return 0;
|
|
}
|