ike: support multiple addresses, ranges and subnets in IKE address config

Replace the allowany semantic by a more powerful subnet and IP range matching.
Multiple addresses, DNS names, subnets and ranges can be specified in a comma
separated list. Initiators ignore the ranges/subnets, responders match
configurations against all addresses, ranges and subnets.
This commit is contained in:
Martin Willi
2013-09-04 10:38:37 +02:00
parent beffdc6ab8
commit 3070697f9f
16 changed files with 311 additions and 115 deletions
+2 -2
View File
@@ -163,8 +163,8 @@ static peer_cfg_t* create_peer_cfg(private_cmd_connection_t *this)
{
remote_port = IKEV2_NATT_PORT;
}
ike_cfg = ike_cfg_create(version, TRUE, FALSE, "0.0.0.0", FALSE, local_port,
this->host, FALSE, remote_port, FRAGMENTATION_NO, 0);
ike_cfg = ike_cfg_create(version, TRUE, FALSE, "0.0.0.0", local_port,
this->host, remote_port, FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create("cmd", ike_cfg,
CERT_SEND_IF_ASKED, UNIQUE_REPLACE, 1, /* keyingtries */
+2 -2
View File
@@ -527,9 +527,9 @@ static gboolean connect_(NMVPNPlugin *plugin, NMConnection *connection,
/**
* Set up configurations
*/
ike_cfg = ike_cfg_create(IKEV2, TRUE, encap, "0.0.0.0", FALSE,
ike_cfg = ike_cfg_create(IKEV2, TRUE, encap, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
(char*)address, FALSE, IKEV2_UDP_PORT,
(char*)address, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create(priv->name, ike_cfg,
+2 -2
View File
@@ -103,9 +103,9 @@ static ike_cfg_t *load_ike_config(private_config_t *this,
ike_cfg = ike_cfg_create(IKEV2, TRUE,
settings->get_bool(settings, "configs.%s.fake_nat", FALSE, config),
settings->get_str(settings, "configs.%s.lhost", "%any", config), FALSE,
settings->get_str(settings, "configs.%s.lhost", "%any", config),
settings->get_int(settings, "configs.%s.lport", 500, config),
settings->get_str(settings, "configs.%s.rhost", "%any", config), FALSE,
settings->get_str(settings, "configs.%s.rhost", "%any", config),
settings->get_int(settings, "configs.%s.rport", 500, config),
FRAGMENTATION_NO, 0);
token = settings->get_str(settings, "configs.%s.proposal", NULL, config);
@@ -525,9 +525,9 @@ static job_requeue_t initiate(private_android_service_t *this)
}
};
ike_cfg = ike_cfg_create(IKEV2, TRUE, TRUE, "0.0.0.0", FALSE,
ike_cfg = ike_cfg_create(IKEV2, TRUE, TRUE, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
this->gateway, FALSE, IKEV2_UDP_PORT,
this->gateway, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
+2 -2
View File
@@ -84,8 +84,8 @@ static peer_cfg_t* create_peer_cfg(char *name, char *host)
{
remote_port = IKEV2_NATT_PORT;
}
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, "0.0.0.0", FALSE, local_port,
host, FALSE, remote_port, FRAGMENTATION_NO, 0);
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, "0.0.0.0", local_port,
host, remote_port, FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create(name, ike_cfg,
CERT_SEND_IF_ASKED, UNIQUE_REPLACE, 1, /* keyingtries */
+208 -46
View File
@@ -50,24 +50,34 @@ struct private_ike_cfg_t {
ike_version_t version;
/**
* Address of local host
* Address list string for local host
*/
char *me;
/**
* Address of remote host
* Address list string for remote host
*/
char *other;
/**
* Allow override of local address
* Local single host or DNS names, as allocated char*
*/
bool my_allow_any;
linked_list_t *my_hosts;
/**
* Allow override of remote address
* Remote single host or DNS names, as allocated char*
*/
bool other_allow_any;
linked_list_t *other_hosts;
/**
* Local ranges/subnets this config matches to, as traffic_selector_t*
*/
linked_list_t *my_ranges;
/**
* Remote ranges/subnets this config matches to, as traffic_selector_t*
*/
linked_list_t *other_ranges;
/**
* our source port
@@ -129,60 +139,113 @@ METHOD(ike_cfg_t, fragmentation, fragmentation_t,
return this->fragmentation;
}
/**
* Common function for resolve_me/other
*/
static host_t* resolve(linked_list_t *hosts, int family, u_int16_t port)
{
enumerator_t *enumerator;
host_t *host = NULL;
bool tried = FALSE;
char *str;
enumerator = hosts->create_enumerator(hosts);
while (enumerator->enumerate(enumerator, &str))
{
host = host_create_from_dns(str, family, port);
if (host)
{
break;
}
tried = TRUE;
}
enumerator->destroy(enumerator);
if (!host && !tried)
{
/* we have no single host configured, return %any */
host = host_create_any(family ?: AF_INET);
host->set_port(host, port);
}
return host;
}
METHOD(ike_cfg_t, resolve_me, host_t*,
private_ike_cfg_t *this, int family)
{
return host_create_from_dns(this->me, family, this->my_port);
return resolve(this->my_hosts, family, this->my_port);
}
METHOD(ike_cfg_t, resolve_other, host_t*,
private_ike_cfg_t *this, int family)
{
return host_create_from_dns(this->other, family, this->other_port);
return resolve(this->other_hosts, family, this->other_port);
}
/**
* Common function for match_me/other
*/
static u_int match(linked_list_t *hosts, linked_list_t *ranges, host_t *cand)
{
enumerator_t *enumerator;
traffic_selector_t *ts;
char *str;
host_t *host;
u_int8_t mask;
u_int quality = 0;
/* try single hosts first */
enumerator = hosts->create_enumerator(hosts);
while (enumerator->enumerate(enumerator, &str))
{
host = host_create_from_dns(str, cand->get_family(cand), 0);
if (host)
{
if (host->ip_equals(host, cand))
{
quality = max(quality, 128 + 1);
}
if (host->is_anyaddr(host))
{
quality = max(quality, 1);
}
host->destroy(host);
}
}
enumerator->destroy(enumerator);
/* then ranges/subnets */
enumerator = ranges->create_enumerator(ranges);
while (enumerator->enumerate(enumerator, &ts))
{
if (ts->includes(ts, cand))
{
if (ts->to_subnet(ts, &host, &mask))
{
quality = max(quality, mask + 1);
host->destroy(host);
}
else
{
quality = max(quality, 1);
}
}
}
enumerator->destroy(enumerator);
return quality;
}
METHOD(ike_cfg_t, match_me, u_int,
private_ike_cfg_t *this, host_t *host)
{
host_t *me;
int quality = 0;
me = resolve_me(this, host->get_family(host));
if (me)
{
if (me->ip_equals(me, host))
{
quality = 2;
}
else if (this->my_allow_any)
{
quality = 1;
}
me->destroy(me);
}
return quality;
return match(this->my_hosts, this->my_ranges, host);
}
METHOD(ike_cfg_t, match_other, u_int,
private_ike_cfg_t *this, host_t *host)
{
host_t *other;
int quality = 0;
other = resolve_other(this, host->get_family(host));
if (other)
{
if (other->ip_equals(other, host))
{
quality = 2;
}
else if (this->other_allow_any)
{
quality = 1;
}
other->destroy(other);
}
return quality;
return match(this->other_hosts, this->other_ranges, host);
}
METHOD(ike_cfg_t, get_my_addr, char*,
@@ -361,16 +424,110 @@ METHOD(ike_cfg_t, destroy, void,
offsetof(proposal_t, destroy));
free(this->me);
free(this->other);
this->my_hosts->destroy_function(this->my_hosts, free);
this->other_hosts->destroy_function(this->other_hosts, free);
this->my_ranges->destroy_offset(this->my_ranges,
offsetof(traffic_selector_t, destroy));
this->other_ranges->destroy_offset(this->other_ranges,
offsetof(traffic_selector_t, destroy));
free(this);
}
}
/**
* Try to parse a string as subnet
*/
static traffic_selector_t* make_subnet(char *str)
{
char *pos;
pos = strchr(str, '/');
if (!pos)
{
return NULL;
}
return traffic_selector_create_from_cidr(str, 0, 0, 0);
}
/**
* Try to parse a string as an IP range
*/
static traffic_selector_t* make_range(char *str)
{
traffic_selector_t *ts;
ts_type_t type;
char *pos;
host_t *from, *to;
pos = strchr(str, '-');
if (!pos)
{
return NULL;
}
to = host_create_from_string(pos + 1, 0);
if (!to)
{
return NULL;
}
str = strndup(str, pos - str);
from = host_create_from_string_and_family(str, to->get_family(to), 0);
free(str);
if (!from)
{
to->destroy(to);
return NULL;
}
if (to->get_family(to) == AF_INET)
{
type = TS_IPV4_ADDR_RANGE;
}
else
{
type = TS_IPV6_ADDR_RANGE;
}
ts = traffic_selector_create_from_bytes(0, type,
from->get_address(from), 0,
to->get_address(to), 0);
from->destroy(from);
to->destroy(to);
return ts;
}
/**
* Parse address string into lists of single hosts and ranges/subnets
*/
static void parse_addresses(char *str, linked_list_t *hosts,
linked_list_t *ranges)
{
enumerator_t *enumerator;
traffic_selector_t *ts;
enumerator = enumerator_create_token(str, ",", " ");
while (enumerator->enumerate(enumerator, &str))
{
ts = make_subnet(str);
if (ts)
{
ranges->insert_last(ranges, ts);
continue;
}
ts = make_range(str);
if (ts)
{
ranges->insert_last(ranges, ts);
continue;
}
hosts->insert_last(hosts, strdup(str));
}
enumerator->destroy(enumerator);
}
/**
* Described in header.
*/
ike_cfg_t *ike_cfg_create(ike_version_t version, bool certreq, bool force_encap,
char *me, bool my_allow_any, u_int16_t my_port,
char *other, bool other_allow_any, u_int16_t other_port,
char *me, u_int16_t my_port,
char *other, u_int16_t other_port,
fragmentation_t fragmentation, u_int8_t dscp)
{
private_ike_cfg_t *this;
@@ -404,14 +561,19 @@ ike_cfg_t *ike_cfg_create(ike_version_t version, bool certreq, bool force_encap,
.force_encap = force_encap,
.fragmentation = fragmentation,
.me = strdup(me),
.my_ranges = linked_list_create(),
.my_hosts = linked_list_create(),
.other = strdup(other),
.my_allow_any = my_allow_any,
.other_allow_any = other_allow_any,
.other_ranges = linked_list_create(),
.other_hosts = linked_list_create(),
.my_port = my_port,
.other_port = other_port,
.dscp = dscp,
.proposals = linked_list_create(),
);
parse_addresses(me, this->my_hosts, this->my_ranges);
parse_addresses(other, this->other_hosts, this->other_ranges);
return &this->public;
}
+8 -5
View File
@@ -230,24 +230,27 @@ struct ike_cfg_t {
/**
* Creates a ike_cfg_t object.
*
* Supplied hosts become owned by ike_cfg, the name gets cloned.
* Supplied hosts become owned by ike_cfg, strings get cloned.
*
* me and other are comma separated lists of IP addresses, DNS names, IP ranges
* or subnets. When initiating, the first non-range/subnet address is used
* as address. When responding, a match is performed against all items in the
* list.
*
* @param version IKE major version to use for this config
* @param certreq TRUE to send a certificate request
* @param force_encap enforce UDP encapsulation by faking NATD notify
* @param me address/DNS name of local peer
* @param my_allow_any allow override of local address by any address
* @param my_port IKE port to use as source, 500 uses IKEv2 port floating
* @param other address/DNS name of remote peer
* @param other_allow_any allow override of remote address by any address
* @param other_port IKE port to use as dest, 500 uses IKEv2 port floating
* @param fragmentation use IKEv1 fragmentation
* @param dscp DSCP value to send IKE packets with
* @return ike_cfg_t object.
*/
ike_cfg_t *ike_cfg_create(ike_version_t version, bool certreq, bool force_encap,
char *me, bool my_allow_any, u_int16_t my_port,
char *other, bool other_allow_any, u_int16_t other_port,
char *me, u_int16_t my_port,
char *other, u_int16_t other_port,
fragmentation_t fragmentation, u_int8_t dscp);
#endif /** IKE_CFG_H_ @}*/
+2 -2
View File
@@ -203,9 +203,9 @@ static void setup_tunnel(private_ha_tunnel_t *this,
lib->credmgr->add_set(lib->credmgr, &this->creds.public);
/* create config and backend */
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, local, FALSE,
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, local,
charon->socket->get_port(charon->socket, FALSE),
remote, FALSE, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
remote, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create("ha", ike_cfg, CERT_NEVER_SEND,
UNIQUE_KEEP, 0, 86400, 0, 7200, 3600, FALSE, FALSE,
@@ -544,16 +544,15 @@ static peer_cfg_t* generate_config(private_load_tester_config_t *this, uint num)
if (this->port && num)
{
ike_cfg = ike_cfg_create(this->version, TRUE, FALSE,
local, FALSE, this->port + num - 1,
remote, FALSE, IKEV2_NATT_PORT,
local, this->port + num - 1,
remote, IKEV2_NATT_PORT,
FRAGMENTATION_NO, 0);
}
else
{
ike_cfg = ike_cfg_create(this->version, TRUE, FALSE,
local, FALSE,
ike_cfg = ike_cfg_create(this->version, TRUE, FALSE, local,
charon->socket->get_port(charon->socket, FALSE),
remote, FALSE, IKEV2_UDP_PORT,
remote, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
}
ike_cfg->add_proposal(ike_cfg, this->proposal->clone(this->proposal));
+2 -3
View File
@@ -323,10 +323,9 @@ static gboolean initiate_connection(private_maemo_service_t *this,
NULL);
}
ike_cfg = ike_cfg_create(IKEV2, TRUE, FALSE, "0.0.0.0", FALSE,
ike_cfg = ike_cfg_create(IKEV2, TRUE, FALSE, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
hostname, FALSE, IKEV2_UDP_PORT, FRAGMENTATION_NO,
0);
hostname, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
peer_cfg = peer_cfg_create(this->current, ike_cfg,
+4 -6
View File
@@ -102,10 +102,9 @@ METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*,
DESTROY_IF(e);
return NULL;
}
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE,
"0.0.0.0", FALSE,
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
address, FALSE, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
address, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
med_cfg = peer_cfg_create(
"mediation", ike_cfg,
@@ -377,10 +376,9 @@ medcli_config_t *medcli_config_create(database_t *db)
.db = db,
.rekey = lib->settings->get_time(lib->settings, "medcli.rekey", 1200),
.dpd = lib->settings->get_time(lib->settings, "medcli.dpd", 300),
.ike = ike_cfg_create(IKEV2, FALSE, FALSE,
"0.0.0.0", FALSE,
.ike = ike_cfg_create(IKEV2, FALSE, FALSE, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
"0.0.0.0", FALSE, IKEV2_UDP_PORT,
"0.0.0.0", IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0),
);
this->ike->add_proposal(this->ike, proposal_create_default(PROTO_IKE));
+2 -3
View File
@@ -139,10 +139,9 @@ medsrv_config_t *medsrv_config_create(database_t *db)
.db = db,
.rekey = lib->settings->get_time(lib->settings, "medsrv.rekey", 1200),
.dpd = lib->settings->get_time(lib->settings, "medsrv.dpd", 300),
.ike = ike_cfg_create(IKEV2, FALSE, FALSE,
"0.0.0.0", FALSE,
.ike = ike_cfg_create(IKEV2, FALSE, FALSE, "0.0.0.0",
charon->socket->get_port(charon->socket, FALSE),
"0.0.0.0", FALSE, IKEV2_UDP_PORT,
"0.0.0.0", IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0),
);
this->ike->add_proposal(this->ike, proposal_create_default(PROTO_IKE));
+2 -4
View File
@@ -258,11 +258,9 @@ static ike_cfg_t *build_ike_cfg(private_sql_config_t *this, enumerator_t *e,
{
ike_cfg_t *ike_cfg;
ike_cfg = ike_cfg_create(IKEV2, certreq, force_encap,
local, FALSE,
ike_cfg = ike_cfg_create(IKEV2, certreq, force_encap, local,
charon->socket->get_port(charon->socket, FALSE),
remote, FALSE, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
remote, IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
add_ike_proposals(this, ike_cfg, id);
return ike_cfg;
}
+63 -22
View File
@@ -191,53 +191,86 @@ static void add_proposals(private_stroke_config_t *this, char *string,
*/
static ike_cfg_t *build_ike_cfg(private_stroke_config_t *this, stroke_msg_t *msg)
{
enumerator_t *enumerator;
stroke_end_t tmp_end;
ike_cfg_t *ike_cfg;
host_t *host;
u_int16_t ikeport;
char me[256], other[256], *token;
bool swapped = FALSE;;
host = host_create_from_dns(msg->add_conn.other.address, 0, 0);
if (host)
enumerator = enumerator_create_token(msg->add_conn.other.address, ",", " ");
while (enumerator->enumerate(enumerator, &token))
{
if (hydra->kernel_interface->get_interface(hydra->kernel_interface,
host, NULL))
if (!strchr(token, '/'))
{
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;
host->destroy(host);
}
else
{
host->destroy(host);
host = host_create_from_dns(msg->add_conn.me.address, 0, 0);
host = host_create_from_dns(token, 0, 0);
if (host)
{
if (!hydra->kernel_interface->get_interface(
if (hydra->kernel_interface->get_interface(
hydra->kernel_interface, host, NULL))
{
DBG1(DBG_CFG, "left nor right host is our side, "
"assuming left=local");
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;
host->destroy(host);
swapped = TRUE;
}
host->destroy(host);
}
}
}
enumerator->destroy(enumerator);
if (!swapped)
{
enumerator = enumerator_create_token(msg->add_conn.me.address, ",", " ");
while (enumerator->enumerate(enumerator, &token))
{
if (!strchr(token, '/'))
{
host = host_create_from_dns(token, 0, 0);
if (host)
{
if (!hydra->kernel_interface->get_interface(
hydra->kernel_interface, host, NULL))
{
DBG1(DBG_CFG, "left nor right host is our side, "
"assuming left=local");
}
host->destroy(host);
}
}
}
enumerator->destroy(enumerator);
}
if (msg->add_conn.me.allow_any)
{
snprintf(me, sizeof(me), "%s,0.0.0.0/0,::/0",
msg->add_conn.me.address);
}
if (msg->add_conn.other.allow_any)
{
snprintf(other, sizeof(other), "%s,0.0.0.0/0,::/0",
msg->add_conn.other.address);
}
ikeport = msg->add_conn.me.ikeport;
ikeport = (ikeport == IKEV2_UDP_PORT) ?
charon->socket->get_port(charon->socket, FALSE) : ikeport;
ike_cfg = ike_cfg_create(msg->add_conn.version,
msg->add_conn.other.sendcert != CERT_NEVER_SEND,
msg->add_conn.force_encap,
msg->add_conn.me.address,
msg->add_conn.me.allow_any,
msg->add_conn.me.allow_any ?
me : msg->add_conn.me.address,
ikeport,
msg->add_conn.other.address,
msg->add_conn.other.allow_any,
msg->add_conn.other.allow_any ?
other : msg->add_conn.other.address,
msg->add_conn.other.ikeport,
msg->add_conn.fragmentation,
msg->add_conn.ikedscp);
add_proposals(this, msg->add_conn.algorithms.ike, ike_cfg, NULL);
return ike_cfg;
}
@@ -824,7 +857,15 @@ static peer_cfg_t *build_peer_cfg(private_stroke_config_t *this,
}
else
{
if (strchr(ike_cfg->get_my_addr(ike_cfg), ':'))
char *addr, *next, *hit;
/* guess virtual IP family based on local address. If
* multiple addresses are specified, we look at the first
* only, as with leftallowany a ::/0 is always appended. */
addr = ike_cfg->get_my_addr(ike_cfg);
next = strchr(addr, ',');
hit = strchr(addr, ':');
if (hit && (!next || hit < next))
{
vip = host_create_any(AF_INET6);
}
+2 -3
View File
@@ -544,7 +544,6 @@ METHOD(stroke_list_t, status, void,
while (enumerator->enumerate(enumerator, &peer_cfg))
{
char *my_addr, *other_addr;
bool my_allow_any, other_allow_any;
if (name && !streq(name, peer_cfg->get_name(peer_cfg)))
{
@@ -553,8 +552,8 @@ METHOD(stroke_list_t, status, void,
ike_cfg = peer_cfg->get_ike_cfg(peer_cfg);
ike_version = peer_cfg->get_ike_version(peer_cfg);
my_addr = ike_cfg->get_my_addr(ike_cfg, &my_allow_any);
other_addr = ike_cfg->get_other_addr(ike_cfg, &other_allow_any);
my_addr = ike_cfg->get_my_addr(ike_cfg);
other_addr = ike_cfg->get_other_addr(ike_cfg);
fprintf(out, "%12s: %s...%s %N", peer_cfg->get_name(peer_cfg),
my_addr, other_addr, ike_version_names, ike_version);
+4 -6
View File
@@ -152,10 +152,9 @@ METHOD(enumerator_t, peer_enumerator_enumerate, bool,
&ike_proposal, &esp_proposal, &ike_rekey, &esp_rekey))
{
DESTROY_IF(this->peer_cfg);
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE,
local_addr, FALSE,
ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, local_addr,
charon->socket->get_port(charon->socket, FALSE),
remote_addr, FALSE, IKEV2_UDP_PORT,
remote_addr, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
ike_cfg->add_proposal(ike_cfg, create_proposal(ike_proposal, PROTO_IKE));
this->peer_cfg = peer_cfg_create(
@@ -251,10 +250,9 @@ METHOD(enumerator_t, ike_enumerator_enumerate, bool,
&local_addr, &remote_addr, &ike_proposal))
{
DESTROY_IF(this->ike_cfg);
this->ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE,
local_addr, FALSE,
this->ike_cfg = ike_cfg_create(IKEV2, FALSE, FALSE, local_addr,
charon->socket->get_port(charon->socket, FALSE),
remote_addr, FALSE, IKEV2_UDP_PORT,
remote_addr, IKEV2_UDP_PORT,
FRAGMENTATION_NO, 0);
this->ike_cfg->add_proposal(this->ike_cfg,
create_proposal(ike_proposal, PROTO_IKE));