#include <vlibmemory/api.h>
#include <vpp/app/version.h>
#include <vnet/vnet.h>
-#include <vnet/pg/pg.h>
#include <vppinfra/error.h>
#include <vppinfra/random.h>
#include <vnet/udp/udp.h>
return s;
}
-static vlib_node_registration_t ikev2_node;
-
#define foreach_ikev2_error \
_(PROCESSED, "IKEv2 packets processed") \
_(IKE_SA_INIT_RETRANSMIT, "IKE_SA_INIT retransmit ") \
typedef enum
{
IKEV2_NEXT_IP4_LOOKUP,
- IKEV2_NEXT_ERROR_DROP,
- IKEV2_N_NEXT,
-} ikev2_next_t;
+ IKEV2_NEXT_IP4_ERROR_DROP,
+ IKEV2_IP4_N_NEXT,
+} ikev2_ip4_next_t;
+
+typedef enum
+{
+ IKEV2_NEXT_IP6_LOOKUP,
+ IKEV2_NEXT_IP6_ERROR_DROP,
+ IKEV2_IP6_N_NEXT,
+} ikev2_ip6_next_t;
typedef u32 ikev2_non_esp_marker;
static_always_inline u16
ikev2_get_port (ikev2_sa_t * sa)
{
- return sa->natt ? IKEV2_PORT_NATT : IKEV2_PORT;
+ return ikev2_natt_active (sa) ? IKEV2_PORT_NATT : IKEV2_PORT;
}
static_always_inline int
vec_free (p->transforms);
}
vec_free (*v);
-};
+}
static void
ikev2_sa_free_child_sa (ikev2_child_sa_t * c)
}
static void
-ikev2_delete_sa (ikev2_sa_t * sa)
+ikev2_delete_sa (ikev2_main_per_thread_data_t * ptd, ikev2_sa_t * sa)
{
- ikev2_main_t *km = &ikev2_main;
- u32 thread_index = vlib_get_thread_index ();
uword *p;
ikev2_sa_free_all_vec (sa);
- p = hash_get (km->per_thread_data[thread_index].sa_by_rspi, sa->rspi);
+ p = hash_get (ptd->sa_by_rspi, sa->rspi);
if (p)
{
- hash_unset (km->per_thread_data[thread_index].sa_by_rspi, sa->rspi);
- pool_put (km->per_thread_data[thread_index].sas, sa);
+ hash_unset (ptd->sa_by_rspi, sa->rspi);
+ pool_put (ptd->sas, sa);
}
}
sa->i_nonce = _(sai->i_nonce);
sa->i_dh_data = _(sai->i_dh_data);
sa->dh_private_key = _(sai->dh_private_key);
- sa->iaddr.as_u32 = sai->iaddr.as_u32;
- sa->raddr.as_u32 = sai->raddr.as_u32;
+ ip_address_copy (&sa->iaddr, &sai->iaddr);
+ ip_address_copy (&sa->raddr, &sai->raddr);
sa->is_initiator = sai->is_initiator;
sa->i_id.type = sai->i_id.type;
sa->r_id.type = sai->r_id.type;
sa->profile_index = sai->profile_index;
sa->tun_itf = sai->tun_itf;
sa->is_tun_itf_set = sai->is_tun_itf_set;
+ sa->natt_state = sai->natt_state;
sa->i_id.data = _(sai->i_id.data);
sa->r_id.data = _(sai->r_id.data);
sa->i_auth.method = sai->i_auth.method;
}
static_always_inline u8 *
-ikev2_compute_nat_sha1 (u64 ispi, u64 rspi, u32 ip, u16 port)
+ikev2_compute_nat_sha1 (u64 ispi, u64 rspi, ip_address_t * ia, u16 port)
{
- /* ispi, rspi, ip, port */
- u8 buf[8 + 8 + 4 + 2];
+ const u32 max_buf_size =
+ sizeof (ispi) + sizeof (rspi) + sizeof (ip6_address_t) + sizeof (u16);
+ u8 buf[max_buf_size];
u8 *res = vec_new (u8, 20);
clib_memcpy_fast (&buf[0], &ispi, sizeof (ispi));
clib_memcpy_fast (&buf[8], &rspi, sizeof (rspi));
- clib_memcpy_fast (&buf[8 + 8], &ip, sizeof (ip));
- clib_memcpy_fast (&buf[8 + 8 + 4], &port, sizeof (port));
- SHA1 (buf, sizeof (buf), res);
+ clib_memcpy_fast (&buf[8 + 8], ip_addr_bytes (ia), ip_address_size (ia));
+ clib_memcpy_fast (&buf[8 + 8 + ip_address_size (ia)], &port, sizeof (port));
+ SHA1 (buf, 2 * sizeof (ispi) + sizeof (port) + ip_address_size (ia), res);
return res;
}
u16 plen;
ikev2_elog_exchange ("ispi %lx rspi %lx IKE_INIT request received "
- "from %d.%d.%d.%d",
- clib_net_to_host_u64 (ike->ispi),
- clib_net_to_host_u64 (ike->rspi), sa->iaddr.as_u32);
+ "from ", clib_net_to_host_u64 (ike->ispi),
+ clib_net_to_host_u64 (ike->rspi),
+ ip_addr_v4 (&sa->iaddr).as_u32,
+ ip_addr_version (&sa->iaddr) == AF_IP4);
sa->ispi = clib_net_to_host_u64 (ike->ispi);
ikev2_parse_notify_payload (ikep, current_length);
if (n->msg_type == IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP)
{
- u8 *src_sha = ikev2_compute_nat_sha1 (ike->ispi, 0,
- sa->iaddr.as_u32,
+ u8 *src_sha = ikev2_compute_nat_sha1 (ike->ispi, 0, &sa->iaddr,
udp->src_port);
if (clib_memcmp (src_sha, n->data, vec_len (src_sha)))
{
- sa->natt = 1;
+ if (sa->natt_state == IKEV2_NATT_ENABLED)
+ sa->natt_state = IKEV2_NATT_ACTIVE;
ikev2_elog_uint (IKEV2_LOG_DEBUG, "ispi %lx initiator"
" behind NAT", sa->ispi);
}
else if (n->msg_type ==
IKEV2_NOTIFY_MSG_NAT_DETECTION_DESTINATION_IP)
{
- u8 *dst_sha = ikev2_compute_nat_sha1 (ike->ispi, 0,
- sa->raddr.as_u32,
+ u8 *dst_sha = ikev2_compute_nat_sha1 (ike->ispi, 0, &sa->raddr,
udp->dst_port);
if (clib_memcmp (dst_sha, n->data, vec_len (dst_sha)))
{
- sa->natt = 1;
+ if (sa->natt_state == IKEV2_NATT_ENABLED)
+ sa->natt_state = IKEV2_NATT_ACTIVE;
ikev2_elog_uint (IKEV2_LOG_DEBUG, "ispi %lx responder"
" (self) behind NAT", sa->ispi);
}
sa->rspi = clib_net_to_host_u64 (ike->rspi);
ikev2_elog_exchange ("ispi %lx rspi %lx IKE_INIT response received "
- "from %d.%d.%d.%d", sa->ispi, sa->rspi,
- sa->raddr.as_u32);
+ "from ", sa->ispi, sa->rspi,
+ ip_addr_v4 (&sa->raddr).as_u32,
+ ip_addr_version (&sa->raddr) == AF_IP4);
/* store whole IKE payload - needed for PSK auth */
vec_reset_length (sa->last_sa_init_res_packet_data);
ikev2_parse_notify_payload (ikep, current_length);
if (n->msg_type == IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP)
{
- u8 *src_sha = ikev2_compute_nat_sha1 (ike->ispi,
- ike->rspi,
- sa->raddr.as_u32,
+ u8 *src_sha = ikev2_compute_nat_sha1 (ike->ispi, ike->rspi,
+ &sa->raddr,
udp->src_port);
if (clib_memcmp (src_sha, n->data, vec_len (src_sha)))
{
else if (n->msg_type ==
IKEV2_NOTIFY_MSG_NAT_DETECTION_DESTINATION_IP)
{
- u8 *dst_sha = ikev2_compute_nat_sha1 (ike->ispi,
- ike->rspi,
- sa->iaddr.as_u32,
+ u8 *dst_sha = ikev2_compute_nat_sha1 (ike->ispi, ike->rspi,
+ &sa->iaddr,
udp->dst_port);
if (clib_memcmp (dst_sha, n->data, vec_len (dst_sha)))
{
- sa->natt = 1;
+ if (sa->natt_state == IKEV2_NATT_ENABLED)
+ sa->natt_state = IKEV2_NATT_ACTIVE;
ikev2_elog_uint (IKEV2_LOG_DEBUG, "ispi %lx initiator"
" (self) behind NAT", sa->ispi);
}
}
static void
-ikev2_initial_contact_cleanup (ikev2_sa_t * sa)
+ikev2_initial_contact_cleanup_internal (ikev2_main_per_thread_data_t * ptd,
+ ikev2_sa_t * sa)
{
ikev2_main_t *km = &ikev2_main;
ikev2_sa_t *tmp;
u32 i, *delete = 0;
ikev2_child_sa_t *c;
- u32 thread_index = vlib_get_thread_index ();
-
- if (!sa->initial_contact)
- return;
/* find old IKE SAs with the same authenticated identity */
/* *INDENT-OFF* */
- pool_foreach (tmp, km->per_thread_data[thread_index].sas, ({
- if (!ikev2_is_id_equal (&tmp->i_id, &sa->i_id)
- || !ikev2_is_id_equal(&tmp->r_id, &sa->r_id))
- continue;
+ pool_foreach (tmp, ptd->sas, ({
+ if (!ikev2_is_id_equal (&tmp->i_id, &sa->i_id)
+ || !ikev2_is_id_equal(&tmp->r_id, &sa->r_id))
+ continue;
- if (sa->rspi != tmp->rspi)
- vec_add1(delete, tmp - km->per_thread_data[thread_index].sas);
+ if (sa->rspi != tmp->rspi)
+ vec_add1(delete, tmp - ptd->sas);
}));
/* *INDENT-ON* */
for (i = 0; i < vec_len (delete); i++)
{
- tmp =
- pool_elt_at_index (km->per_thread_data[thread_index].sas, delete[i]);
- vec_foreach (c,
- tmp->childs) ikev2_delete_tunnel_interface (km->vnet_main,
- tmp, c);
- ikev2_delete_sa (tmp);
+ tmp = pool_elt_at_index (ptd->sas, delete[i]);
+ vec_foreach (c, tmp->childs)
+ {
+ ikev2_delete_tunnel_interface (km->vnet_main, tmp, c);
+ }
+ ikev2_delete_sa (ptd, tmp);
}
vec_free (delete);
sa->initial_contact = 0;
}
+static void
+ikev2_initial_contact_cleanup (ikev2_main_per_thread_data_t * ptd,
+ ikev2_sa_t * sa)
+{
+ ikev2_main_t *km = &ikev2_main;
+
+ if (!sa->initial_contact)
+ return;
+
+ if (ptd)
+ {
+ ikev2_initial_contact_cleanup_internal (ptd, sa);
+ }
+ else
+ {
+ vec_foreach (ptd, km->per_thread_data)
+ ikev2_initial_contact_cleanup_internal (ptd, sa);
+ }
+ sa->initial_contact = 0;
+}
+
static int
ikev2_parse_id_payload (const void *p, u16 rlen, ikev2_id_t * sa_id)
{
u32 dlen = 0;
ikev2_elog_exchange ("ispi %lx rspi %lx EXCHANGE_IKE_AUTH received "
- "from %d.%d.%d.%d", clib_host_to_net_u64 (ike->ispi),
+ "from ", clib_host_to_net_u64 (ike->ispi),
clib_host_to_net_u64 (ike->rspi),
- sa->is_initiator ? sa->raddr.as_u32 : sa->
- iaddr.as_u32);
+ sa->is_initiator ?
+ ip_addr_v4 (&sa->raddr).as_u32 :
+ ip_addr_v4 (&sa->iaddr).as_u32,
+ ip_addr_version (&sa->raddr) == AF_IP4);
ikev2_calc_keys (sa);
sa->liveness_retries = 0;
ikev2_elog_exchange ("ispi %lx rspi %lx INFORMATIONAL received "
- "from %d.%d.%d.%d", clib_host_to_net_u64 (ike->ispi),
- clib_host_to_net_u64 (ike->rspi), sa->iaddr.as_u32);
+ "from ", clib_host_to_net_u64 (ike->ispi),
+ clib_host_to_net_u64 (ike->rspi),
+ ip_addr_v4 (&sa->iaddr).as_u32,
+ ip_addr_version (&sa->iaddr) == AF_IP4);
plaintext = ikev2_decrypt_sk_payload (sa, ike, &payload, len, &dlen);
u16 plen;
ikev2_elog_exchange ("ispi %lx rspi %lx CREATE_CHILD_SA received "
- "from %d.%d.%d.%d", clib_host_to_net_u64 (ike->ispi),
- clib_host_to_net_u64 (ike->rspi), sa->raddr.as_u32);
+ "from ", clib_host_to_net_u64 (ike->ispi),
+ clib_host_to_net_u64 (ike->rspi),
+ ip_addr_v4 (&sa->raddr).as_u32,
+ ip_addr_version (&sa->raddr) == AF_IP4);
plaintext = ikev2_decrypt_sk_payload (sa, ike, &payload, len, &dlen);
rekey->tsi = tsi;
rekey->tsr = tsr;
/* update Ni */
- vec_free (sa->i_nonce);
+ vec_reset_length (sa->i_nonce);
vec_add (sa->i_nonce, nonce, IKEV2_NONCE_SIZE);
/* generate new Nr */
vec_validate (sa->r_nonce, IKEV2_NONCE_SIZE - 1);
RAND_bytes ((u8 *) sa->r_nonce, IKEV2_NONCE_SIZE);
- vec_free (n);
}
+ else
+ goto cleanup_and_exit;
+ vec_free (n);
return 1;
cleanup_and_exit:
vec_free (n);
+ vec_free (proposal);
+ vec_free (tsr);
+ vec_free (tsi);
return 0;
}
{
if (ts1->ts_type == ts2->ts_type && ts1->protocol_id == ts2->protocol_id &&
ts1->start_port == ts2->start_port && ts1->end_port == ts2->end_port &&
- ts1->start_addr.as_u32 == ts2->start_addr.as_u32 &&
- ts1->end_addr.as_u32 == ts2->end_addr.as_u32)
+ !ip_address_cmp (&ts1->start_addr, &ts2->start_addr) &&
+ !ip_address_cmp (&ts1->end_addr, &ts2->end_addr))
return 1;
return 0;
authmsg = ikev2_sa_generate_authmsg (sa, 1);
if (sel_p->auth.method == IKEV2_AUTH_METHOD_SHARED_KEY_MIC)
{
+ vec_free (sa->r_auth.data);
sa->r_auth.data = ikev2_calc_prf (tr_prf, psk, authmsg);
sa->r_auth.method = IKEV2_AUTH_METHOD_SHARED_KEY_MIC;
}
else if (sel_p->auth.method == IKEV2_AUTH_METHOD_RSA_SIG)
{
+ vec_free (sa->r_auth.data);
sa->r_auth.data = ikev2_calc_sign (km->pkey, authmsg);
sa->r_auth.method = IKEV2_AUTH_METHOD_RSA_SIG;
}
if (sa->i_auth.method == IKEV2_AUTH_METHOD_SHARED_KEY_MIC)
{
+ vec_free (sa->i_auth.data);
sa->i_auth.data = ikev2_calc_prf (tr_prf, psk, authmsg);
sa->i_auth.method = IKEV2_AUTH_METHOD_SHARED_KEY_MIC;
}
else if (sa->i_auth.method == IKEV2_AUTH_METHOD_RSA_SIG)
{
+ vec_free (sa->i_auth.data);
sa->i_auth.data = ikev2_calc_sign (km->pkey, authmsg);
sa->i_auth.method = IKEV2_AUTH_METHOD_RSA_SIG;
}
ikev2_main_t *km = &ikev2_main;
u32 sw_if_index;
int rv = 0;
+ ip46_address_t zero_addr = ip46_address_initializer;
if (~0 == a->sw_if_index)
{
if (rv)
{
- ikev2_elog_peers (IKEV2_LOG_ERROR, "installing ipip tunnel failed! "
- "loc:%d.%d.%d.%d rem:%d.%d.%d.%d",
- a->local_ip.ip4.as_u32, a->remote_ip.ip4.as_u32);
+ ikev2_elog_uint (IKEV2_LOG_ERROR,
+ "installing ipip tunnel failed! local spi: %x",
+ a->local_spi);
return;
}
a->local_spi,
IPSEC_PROTOCOL_ESP, a->encr_type,
&a->loc_ckey, a->integ_type, &a->loc_ikey,
- a->flags, 0, a->salt_local, &a->local_ip,
- &a->remote_ip, NULL, a->src_port, a->dst_port);
+ a->flags, 0, a->salt_local, &zero_addr,
+ &zero_addr, TUNNEL_ENCAP_DECAP_FLAG_NONE,
+ IP_DSCP_CS0, NULL, a->src_port, a->dst_port);
+
rv |= ipsec_sa_add_and_lock (a->remote_sa_id, a->remote_spi,
IPSEC_PROTOCOL_ESP, a->encr_type, &a->rem_ckey,
a->integ_type, &a->rem_ikey,
(a->flags | IPSEC_SA_FLAG_IS_INBOUND), 0,
- a->salt_remote, &a->remote_ip,
- &a->local_ip, NULL, a->ipsec_over_udp_port,
+ a->salt_remote, &zero_addr,
+ &zero_addr, TUNNEL_ENCAP_DECAP_FLAG_NONE,
+ IP_DSCP_CS0, NULL,
+ a->ipsec_over_udp_port,
a->ipsec_over_udp_port);
rv |= ipsec_tun_protect_update (sw_if_index, NULL, a->local_sa_id, sas_in);
if (sa->is_initiator)
{
- ip46_address_set_ip4 (&a.local_ip, &sa->iaddr);
- ip46_address_set_ip4 (&a.remote_ip, &sa->raddr);
+ ip_address_to_46 (&sa->iaddr, &a.local_ip);
+ ip_address_to_46 (&sa->raddr, &a.remote_ip);
proposals = child->r_proposals;
a.local_spi = child->r_proposals[0].spi;
a.remote_spi = child->i_proposals[0].spi;
}
else
{
- ip46_address_set_ip4 (&a.local_ip, &sa->raddr);
- ip46_address_set_ip4 (&a.remote_ip, &sa->iaddr);
+ ip_address_to_46 (&sa->raddr, &a.local_ip);
+ ip_address_to_46 (&sa->iaddr, &a.remote_ip);
proposals = child->i_proposals;
a.local_spi = child->i_proposals[0].spi;
a.remote_spi = child->r_proposals[0].spi;
a.flags |= IPSEC_SA_FLAG_IS_TUNNEL;
a.flags |= IPSEC_SA_FLAG_UDP_ENCAP;
}
- if (sa->natt)
+ if (ikev2_natt_active (sa))
a.flags |= IPSEC_SA_FLAG_UDP_ENCAP;
a.is_rekey = is_rekey;
a.salt_remote = child->salt_ei;
a.salt_local = child->salt_er;
}
- a.dst_port = sa->natt ? sa->dst_port : sa->ipsec_over_udp_port;
+ a.dst_port =
+ ikev2_natt_active (sa) ? sa->dst_port : sa->ipsec_over_udp_port;
a.src_port = sa->ipsec_over_udp_port;
}
if (sa->is_initiator)
{
- ip46_address_set_ip4 (&a.local_ip, &sa->iaddr);
- ip46_address_set_ip4 (&a.remote_ip, &sa->raddr);
+ ip_address_to_46 (&sa->iaddr, &a.local_ip);
+ ip_address_to_46 (&sa->raddr, &a.remote_ip);
}
else
{
- ip46_address_set_ip4 (&a.local_ip, &sa->raddr);
- ip46_address_set_ip4 (&a.remote_ip, &sa->iaddr);
+ ip_address_to_46 (&sa->raddr, &a.local_ip);
+ ip_address_to_46 (&sa->iaddr, &a.remote_ip);
}
a.remote_sa_id = child->remote_sa_id;
u8 *nat_detection_sha1 =
ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa->ispi),
clib_host_to_net_u64 (sa->rspi),
- sa->raddr.as_u32,
- udp->dst_port);
+ &sa->raddr, udp->dst_port);
ikev2_payload_add_notify (chain,
IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP,
nat_detection_sha1);
nat_detection_sha1 =
ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa->ispi),
clib_host_to_net_u64 (sa->rspi),
- sa->iaddr.as_u32, udp->src_port);
+ &sa->iaddr, udp->src_port);
ikev2_payload_add_notify (chain,
IKEV2_NOTIFY_MSG_NAT_DETECTION_DESTINATION_IP,
nat_detection_sha1);
{
if (sa->del[0].protocol_id == IKEV2_PROTOCOL_IKE)
{
- if (sa->is_initiator)
+ if (ike_hdr_is_request (ike))
ikev2_payload_add_delete (chain, sa->del);
/* The response to a request that deletes the IKE SA is an empty
ike->version = IKE_VERSION_2;
ike->nextpayload = IKEV2_PAYLOAD_SK;
tlen = sizeof (*ike);
+
if (sa->is_initiator)
+ ike->flags |= IKEV2_HDR_FLAG_INITIATOR;
+
+ if (ike_hdr_is_request (ike))
{
- ike->flags = IKEV2_HDR_FLAG_INITIATOR;
sa->last_init_msg_id = clib_net_to_host_u32 (ike->msgid);
}
- else
- {
- ike->flags = IKEV2_HDR_FLAG_RESPONSE;
- }
-
if (ike->exchange == IKEV2_EXCHANGE_SA_INIT)
{
}
static u32
-ikev2_retransmit_sa_init (ike_header_t * ike, ip4_address_t iaddr,
- ip4_address_t raddr, u32 rlen)
+ikev2_retransmit_sa_init_one (ikev2_sa_t * sa, ike_header_t * ike,
+ ip_address_t iaddr, ip_address_t raddr,
+ u32 rlen)
{
- ikev2_main_t *km = &ikev2_main;
- ikev2_sa_t *sa;
- u32 thread_index = vlib_get_thread_index ();
+ int p = 0;
+ ike_header_t *tmp;
+ u8 payload = ike->nextpayload;
- /* *INDENT-OFF* */
- pool_foreach (sa, km->per_thread_data[thread_index].sas, ({
- if (sa->ispi == clib_net_to_host_u64(ike->ispi) &&
- sa->iaddr.as_u32 == iaddr.as_u32 &&
- sa->raddr.as_u32 == raddr.as_u32)
- {
- int p = 0;
- u8 payload = ike->nextpayload;
+ if (sa->ispi != clib_net_to_host_u64 (ike->ispi) ||
+ ip_address_cmp (&sa->iaddr, &iaddr) ||
+ ip_address_cmp (&sa->raddr, &raddr))
+ {
+ return 0;
+ }
- while (p < rlen && payload!= IKEV2_PAYLOAD_NONE) {
- ike_payload_header_t * ikep = (ike_payload_header_t *) &ike->payload[p];
- u32 plen = clib_net_to_host_u16 (ikep->length);
- if (plen > p + sizeof (*ike))
- return ~0;
+ while (p < rlen && payload != IKEV2_PAYLOAD_NONE)
+ {
+ ike_payload_header_t *ikep = (ike_payload_header_t *) & ike->payload[p];
+ u32 plen = clib_net_to_host_u16 (ikep->length);
- if (plen < sizeof(ike_payload_header_t))
- return ~0;
+ if (plen < sizeof (ike_payload_header_t))
+ return ~0;
- if (payload == IKEV2_PAYLOAD_NONCE)
- {
- if (!clib_memcmp(sa->i_nonce, ikep->payload,
- plen - sizeof(*ikep)))
- {
- /* req is retransmit */
- if (sa->state == IKEV2_STATE_SA_INIT)
- {
- ike_header_t * tmp = (ike_header_t*)sa->last_sa_init_res_packet_data;
- u32 slen = clib_net_to_host_u32(tmp->length);
- ike->ispi = tmp->ispi;
- ike->rspi = tmp->rspi;
- ike->nextpayload = tmp->nextpayload;
- ike->version = tmp->version;
- ike->exchange = tmp->exchange;
- ike->flags = tmp->flags;
- ike->msgid = tmp->msgid;
- ike->length = tmp->length;
- clib_memcpy_fast(ike->payload, tmp->payload, slen - sizeof(*ike));
- ikev2_elog_uint_peers (IKEV2_LOG_DEBUG,
- "ispi %lx IKE_SA_INIT retransmit "
- "from %d.%d.%d.%d to %d.%d.%d.%d",
- ike->ispi,
- raddr.as_u32, iaddr.as_u32);
- return slen;
- }
- /* else ignore req */
- else
- {
- ikev2_elog_uint_peers (IKEV2_LOG_DEBUG,
- "ispi %lx IKE_SA_INIT ignore "
- "from %d.%d.%d.%d to %d.%d.%d.%d",
- ike->ispi,
- raddr.as_u32, iaddr.as_u32);
- return ~0;
- }
- }
- }
- payload = ikep->nextpayload;
- p+=plen;
- }
- }
+ if (payload == IKEV2_PAYLOAD_NONCE &&
+ !clib_memcmp (sa->i_nonce, ikep->payload, plen - sizeof (*ikep)))
+ {
+ /* req is retransmit */
+ if (sa->state == IKEV2_STATE_SA_INIT)
+ {
+ tmp = (ike_header_t *) sa->last_sa_init_res_packet_data;
+ u32 slen = clib_net_to_host_u32 (tmp->length);
+ ike->ispi = tmp->ispi;
+ ike->rspi = tmp->rspi;
+ ike->nextpayload = tmp->nextpayload;
+ ike->version = tmp->version;
+ ike->exchange = tmp->exchange;
+ ike->flags = tmp->flags;
+ ike->msgid = tmp->msgid;
+ ike->length = tmp->length;
+ clib_memcpy_fast (ike->payload, tmp->payload,
+ slen - sizeof (*ike));
+ ikev2_elog_uint_peers (IKEV2_LOG_DEBUG,
+ "ispi %lx IKE_SA_INIT retransmit "
+ "from %d.%d.%d.%d to %d.%d.%d.%d",
+ ike->ispi,
+ ip_addr_v4 (&raddr).as_u32,
+ ip_addr_v4 (&iaddr).as_u32);
+ return slen;
+ }
+ /* else ignore req */
+ else
+ {
+ ikev2_elog_uint_peers (IKEV2_LOG_DEBUG,
+ "ispi %lx IKE_SA_INIT ignore "
+ "from %d.%d.%d.%d to %d.%d.%d.%d",
+ ike->ispi,
+ ip_addr_v4 (&raddr).as_u32,
+ ip_addr_v4 (&iaddr).as_u32);
+ return ~0;
+ }
+ }
+ payload = ikep->nextpayload;
+ p += plen;
+ }
+
+ return 0;
+}
+
+static u32
+ikev2_retransmit_sa_init (ike_header_t * ike, ip_address_t iaddr,
+ ip_address_t raddr, u32 rlen)
+{
+ ikev2_sa_t *sa;
+ u32 res;
+ ikev2_main_per_thread_data_t *ptd = ikev2_get_per_thread_data ();
+
+ /* *INDENT-OFF* */
+ pool_foreach (sa, ptd->sas, ({
+ res = ikev2_retransmit_sa_init_one (sa, ike, iaddr, raddr, rlen);
+ if (res)
+ return res;
}));
/* *INDENT-ON* */
static u32
ikev2_retransmit_resp (ikev2_sa_t * sa, ike_header_t * ike)
{
+ if (ike_hdr_is_response (ike))
+ return 0;
+
u32 msg_id = clib_net_to_host_u32 (ike->msgid);
/* new req */
ike->length = tmp->length;
clib_memcpy_fast (ike->payload, tmp->payload, slen - sizeof (*ike));
ikev2_elog_uint_peers (IKEV2_LOG_DEBUG, "IKE retransmit msgid %d",
- msg_id, sa->raddr.as_u32, sa->iaddr.as_u32);
+ msg_id, ip_addr_v4 (&sa->raddr).as_u32,
+ ip_addr_v4 (&sa->iaddr).as_u32);
return slen;
}
/* old req ignore */
ikev2_elog_uint_peers (IKEV2_LOG_DEBUG, "IKE req ignore msgid %d",
- msg_id, sa->raddr.as_u32, sa->iaddr.as_u32);
+ msg_id, ip_addr_v4 (&sa->raddr).as_u32,
+ ip_addr_v4 (&sa->iaddr).as_u32);
return ~0;
}
sizeof (ispi));
}
-static uword
-ikev2_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+static_always_inline void
+ikev2_rewrite_v6_addrs (ikev2_sa_t * sa, ip6_header_t * ih)
+{
+ if (sa->is_initiator)
+ {
+ ip_address_copy_addr (&ih->dst_address, &sa->raddr);
+ ip_address_copy_addr (&ih->src_address, &sa->iaddr);
+ }
+ else
+ {
+ ip_address_copy_addr (&ih->dst_address, &sa->iaddr);
+ ip_address_copy_addr (&ih->src_address, &sa->raddr);
+ }
+}
+
+static_always_inline void
+ikev2_rewrite_v4_addrs (ikev2_sa_t * sa, ip4_header_t * ih)
+{
+ if (sa->is_initiator)
+ {
+ ip_address_copy_addr (&ih->dst_address, &sa->raddr);
+ ip_address_copy_addr (&ih->src_address, &sa->iaddr);
+ }
+ else
+ {
+ ip_address_copy_addr (&ih->dst_address, &sa->iaddr);
+ ip_address_copy_addr (&ih->src_address, &sa->raddr);
+ }
+}
+
+static_always_inline void
+ikev2_set_ip_address (ikev2_sa_t * sa, const void *iaddr,
+ const void *raddr, const int af)
+{
+ ip_address_set (&sa->raddr, raddr, af);
+ ip_address_set (&sa->iaddr, iaddr, af);
+}
+
+static void
+ikev2_elog_uint_peers_addr (u32 exchange, ip4_header_t * ip4,
+ ip6_header_t * ip6, u8 is_ip4)
+{
+ u32 src, dst;
+ if (is_ip4)
+ {
+ src = ip4->src_address.as_u32;
+ dst = ip4->dst_address.as_u32;
+ }
+ else
+ {
+ src = ip6->src_address.as_u32[3];
+ dst = ip6->dst_address.as_u32[3];
+ }
+ ikev2_elog_uint_peers (IKEV2_LOG_WARNING, "IKEv2 exchange %d "
+ "received from %d.%d.%d.%d to %d.%d.%d.%d",
+ exchange, src, dst);
+}
+
+static_always_inline uword
+ikev2_node_internal (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame,
+ u8 is_ip4)
{
u32 n_left = frame->n_vectors, *from;
ikev2_main_t *km = &ikev2_main;
while (n_left > 0)
{
vlib_buffer_t *b0 = b[0];
- next[0] = IKEV2_NEXT_ERROR_DROP;
- ip4_header_t *ip40;
+ next[0] = is_ip4 ? IKEV2_NEXT_IP4_ERROR_DROP
+ : IKEV2_NEXT_IP6_ERROR_DROP;
+ ip4_header_t *ip40 = 0;
+ ip6_header_t *ip60 = 0;
udp_header_t *udp0;
ike_header_t *ike0;
ikev2_sa_t *sa0 = 0;
ikev2_sa_t sa; /* temporary store for SA */
u32 rlen, slen = 0;
+ int ip_hdr_sz = 0;
int is_req = 0, has_non_esp_marker = 0;
if (b0->punt_reason == ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0])
udp0 = (udp_header_t *) ptr;
ptr += sizeof (*udp0);
ike0 = (ike_header_t *) ptr;
+ ip_hdr_sz = sizeof (*ip40);
}
else
{
+ u8 *ipx_hdr = b0->data + vnet_buffer (b0)->l3_hdr_offset;
ike0 = vlib_buffer_get_current (b0);
vlib_buffer_advance (b0, -sizeof (*udp0));
udp0 = vlib_buffer_get_current (b0);
- vlib_buffer_advance (b0, -sizeof (*ip40));
- ip40 = vlib_buffer_get_current (b0);
+
+ if (is_ip4)
+ {
+ ip40 = (ip4_header_t *) ipx_hdr;
+ ip_hdr_sz = sizeof (*ip40);
+ }
+ else
+ {
+ ip60 = (ip6_header_t *) ipx_hdr;
+ ip_hdr_sz = sizeof (*ip60);
+ }
+ vlib_buffer_advance (b0, -ip_hdr_sz);
}
- rlen = b0->current_length - sizeof (*ip40) - sizeof (*udp0);
+ rlen = b0->current_length - ip_hdr_sz - sizeof (*udp0);
/* check for non-esp marker */
if (*((u32 *) ike0) == 0)
if (clib_net_to_host_u32 (ike0->length) != rlen)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_BAD_LENGTH, 1);
goto dispatch0;
}
if (ike0->version != IKE_VERSION_2)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NOT_IKEV2, 1);
goto dispatch0;
}
sa0 = &sa;
clib_memset (sa0, 0, sizeof (*sa0));
- if (ike0->flags & IKEV2_HDR_FLAG_INITIATOR)
+ if (ike_hdr_is_initiator (ike0))
{
if (ike0->rspi == 0)
{
- sa0->raddr.as_u32 = ip40->dst_address.as_u32;
- sa0->iaddr.as_u32 = ip40->src_address.as_u32;
+ if (is_ip4)
+ ikev2_set_ip_address (sa0, &ip40->src_address,
+ &ip40->dst_address, AF_IP4);
+ else
+ ikev2_set_ip_address (sa0, &ip60->src_address,
+ &ip60->dst_address, AF_IP6);
+
sa0->dst_port = clib_net_to_host_u16 (udp0->src_port);
slen =
sa0->raddr, rlen);
if (slen)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
~0 ==
slen ?
IKEV2_ERROR_IKE_SA_INIT_IGNORE
res = ikev2_process_sa_init_req (vm, sa0, ike0, udp0, rlen);
if (!res)
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_MALFORMED_PACKET,
1);
if (sa0->state == IKEV2_STATE_SA_INIT
|| sa0->state == IKEV2_STATE_NOTIFY_AND_DELETE)
{
+ ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
if (~0 == slen)
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
1);
}
}
else //received sa_init without initiator flag
{
- sa0->raddr.as_u32 = ip40->src_address.as_u32;
- sa0->iaddr.as_u32 = ip40->dst_address.as_u32;
+ if (is_ip4)
+ ikev2_set_ip_address (sa0, &ip40->dst_address,
+ &ip40->src_address, AF_IP4);
+ else
+ ikev2_set_ip_address (sa0, &ip60->dst_address,
+ &ip60->src_address, AF_IP6);
+
ikev2_process_sa_init_resp (vm, sa0, ike0, udp0, rlen);
if (sa0->state == IKEV2_STATE_SA_INIT)
ikev2_complete_sa_data (sa0, sai);
ikev2_calc_keys (sa0);
ikev2_sa_auth_init (sa0);
+ ike0->flags = IKEV2_HDR_FLAG_INITIATOR;
slen =
ikev2_generate_message (b0, sa0, ike0, 0, udp0);
if (~0 == slen)
vlib_node_increment_counter (vm,
- ikev2_node.index,
+ node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
1);
}
slen = ikev2_retransmit_resp (sa0, ike0);
if (slen)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
~0 ==
slen ?
IKEV2_ERROR_IKE_REQ_IGNORE
if (res)
ikev2_sa_auth (sa0);
else
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_MALFORMED_PACKET, 1);
if (sa0->state == IKEV2_STATE_AUTHENTICATED)
{
- ikev2_initial_contact_cleanup (sa0);
+ ikev2_initial_contact_cleanup (ptd, sa0);
ikev2_sa_match_ts (sa0);
if (sa0->state != IKEV2_STATE_TS_UNACCEPTABLE)
ikev2_create_tunnel_interface (vm, sa0,
{
slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
if (~0 == slen)
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
1);
}
slen = ikev2_retransmit_resp (sa0, ike0);
if (slen)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
~0 ==
slen ?
IKEV2_ERROR_IKE_REQ_IGNORE
res = ikev2_process_informational_req (vm, sa0, ike0, rlen);
if (!res)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_MALFORMED_PACKET,
1);
slen = ~0;
}
}
}
- if (!(ike0->flags & IKEV2_HDR_FLAG_RESPONSE))
+ if (ike_hdr_is_request (ike0))
{
- ike0->flags |= IKEV2_HDR_FLAG_RESPONSE;
+ ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
if (~0 == slen)
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
1);
}
slen = ikev2_retransmit_resp (sa0, ike0);
if (slen)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
~0 ==
slen ?
IKEV2_ERROR_IKE_REQ_IGNORE
res = ikev2_process_create_child_sa_req (vm, sa0, ike0, rlen);
if (!res)
{
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_MALFORMED_PACKET,
1);
slen = ~0;
ikev2_create_tunnel_interface (vm, sa0, child, p[0],
child - sa0->childs, 1);
}
- if (sa0->is_initiator)
+ if (ike_hdr_is_response (ike0))
{
vec_free (sa0->rekey);
}
else
{
+ ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
if (~0 == slen)
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
1);
}
}
else
{
- ikev2_elog_uint_peers (IKEV2_LOG_WARNING, "IKEv2 exchange %d "
- "received from %d.%d.%d.%d to %d.%d.%d.%d",
- ike0->exchange,
- ip40->src_address.as_u32,
- ip40->dst_address.as_u32);
+ ikev2_elog_uint_peers_addr (ike0->exchange, ip40, ip60, is_ip4);
}
dispatch0:
/* if we are sending packet back, rewrite headers */
if (slen && ~0 != slen)
{
- next[0] = IKEV2_NEXT_IP4_LOOKUP;
- if (sa0->is_initiator)
+ if (is_ip4)
{
- ip40->dst_address.as_u32 = sa0->raddr.as_u32;
- ip40->src_address.as_u32 = sa0->iaddr.as_u32;
+ next[0] = IKEV2_NEXT_IP4_LOOKUP;
+ ikev2_rewrite_v4_addrs (sa0, ip40);
}
else
{
- ip40->dst_address.as_u32 = sa0->iaddr.as_u32;
- ip40->src_address.as_u32 = sa0->raddr.as_u32;
+ next[0] = IKEV2_NEXT_IP6_LOOKUP;
+ ikev2_rewrite_v6_addrs (sa0, ip60);
}
if (is_req)
clib_net_to_host_u16 (ikev2_get_port (sa0));
if (udp0->dst_port == clib_net_to_host_u16 (IKEV2_PORT_NATT)
- && sa0->natt)
+ && ikev2_natt_active (sa0))
{
if (!has_non_esp_marker)
slen = ikev2_insert_non_esp_marker (ike0, slen);
udp0->length = clib_host_to_net_u16 (slen + sizeof (udp_header_t));
udp0->checksum = 0;
- b0->current_length =
- slen + sizeof (ip4_header_t) + sizeof (udp_header_t);
- ip40->length = clib_host_to_net_u16 (b0->current_length);
- ip40->checksum = ip4_header_checksum (ip40);
+ b0->current_length = slen + ip_hdr_sz + sizeof (udp_header_t);
+ if (is_ip4)
+ {
+ ip40->length = clib_host_to_net_u16 (b0->current_length);
+ ip40->checksum = ip4_header_checksum (ip40);
+ }
+ else
+ {
+ ip60->payload_length =
+ clib_host_to_net_u16 (b0->current_length - sizeof (*ip60));
+ }
}
/* delete sa */
if (sa0 && (sa0->state == IKEV2_STATE_DELETED ||
vec_foreach (c, sa0->childs)
ikev2_delete_tunnel_interface (km->vnet_main, sa0, c);
- ikev2_delete_sa (sa0);
+ ikev2_delete_sa (ptd, sa0);
}
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
&& (b0->flags & VLIB_BUFFER_IS_TRACED)))
b += 1;
}
- vlib_node_increment_counter (vm, ikev2_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_PROCESSED, frame->n_vectors);
vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
return frame->n_vectors;
}
+static uword
+ikev2_ip4 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ikev2_node_internal (vm, node, frame, 1 /* is_ip4 */ );
+}
+
+static uword
+ikev2_ip6 (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ return ikev2_node_internal (vm, node, frame, 0 /* is_ip4 */ );
+}
+
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ikev2_node,static) = {
- .function = ikev2_node_fn,
- .name = "ikev2",
+VLIB_REGISTER_NODE (ikev2_node_ip4,static) = {
+ .function = ikev2_ip4,
+ .name = "ikev2-ip4",
.vector_size = sizeof (u32),
.format_trace = format_ikev2_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN(ikev2_error_strings),
.error_strings = ikev2_error_strings,
- .n_next_nodes = IKEV2_N_NEXT,
-
+ .n_next_nodes = IKEV2_IP4_N_NEXT,
.next_nodes = {
[IKEV2_NEXT_IP4_LOOKUP] = "ip4-lookup",
- [IKEV2_NEXT_ERROR_DROP] = "error-drop",
+ [IKEV2_NEXT_IP4_ERROR_DROP] = "error-drop",
+ },
+};
+
+VLIB_REGISTER_NODE (ikev2_node_ip6,static) = {
+ .function = ikev2_ip6,
+ .name = "ikev2-ip6",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ikev2_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(ikev2_error_strings),
+ .error_strings = ikev2_error_strings,
+
+ .n_next_nodes = IKEV2_IP6_N_NEXT,
+ .next_nodes = {
+ [IKEV2_NEXT_IP6_LOOKUP] = "ip6-lookup",
+ [IKEV2_NEXT_IP6_ERROR_DROP] = "error-drop",
},
};
/* *INDENT-ON* */
static void
-ikev2_send_ike (vlib_main_t * vm, ip4_address_t * src, ip4_address_t * dst,
+ikev2_send_ike (vlib_main_t * vm, ip_address_t * src, ip_address_t * dst,
u32 bi0, u32 len, u16 src_port, u16 dst_port, u32 sw_if_index)
{
ip4_header_t *ip40;
+ ip6_header_t *ip60;
udp_header_t *udp0;
vlib_buffer_t *b0;
vlib_frame_t *f;
b0 = vlib_get_buffer (vm, bi0);
vlib_buffer_advance (b0, -sizeof (udp_header_t));
udp0 = vlib_buffer_get_current (b0);
- vlib_buffer_advance (b0, -sizeof (ip4_header_t));
- ip40 = vlib_buffer_get_current (b0);
-
-
- ip40->ip_version_and_header_length = 0x45;
- ip40->tos = 0;
- ip40->fragment_id = 0;
- ip40->flags_and_fragment_offset = 0;
- ip40->ttl = 0xff;
- ip40->protocol = IP_PROTOCOL_UDP;
- ip40->dst_address.as_u32 = dst->as_u32;
- ip40->src_address.as_u32 = src->as_u32;
udp0->dst_port = clib_host_to_net_u16 (dst_port);
udp0->src_port = clib_host_to_net_u16 (src_port);
udp0->length = clib_host_to_net_u16 (len + sizeof (udp_header_t));
udp0->checksum = 0;
- b0->current_length = len + sizeof (ip4_header_t) + sizeof (udp_header_t);
- ip40->length = clib_host_to_net_u16 (b0->current_length);
- ip40->checksum = ip4_header_checksum (ip40);
+ if (ip_addr_version (dst) == AF_IP4)
+ {
+ vlib_buffer_advance (b0, -sizeof (ip4_header_t));
+ ip40 = vlib_buffer_get_current (b0);
+ ip40->ip_version_and_header_length = 0x45;
+ ip40->tos = 0;
+ ip40->fragment_id = 0;
+ ip40->flags_and_fragment_offset = 0;
+ ip40->ttl = 0xff;
+ ip40->protocol = IP_PROTOCOL_UDP;
+ ip40->dst_address.as_u32 = ip_addr_v4 (dst).as_u32;
+ ip40->src_address.as_u32 = ip_addr_v4 (src).as_u32;
+ b0->current_length =
+ len + sizeof (ip4_header_t) + sizeof (udp_header_t);
+ ip40->length = clib_host_to_net_u16 (b0->current_length);
+ ip40->checksum = ip4_header_checksum (ip40);
+ }
+ else
+ {
+ vlib_buffer_advance (b0, -sizeof (ip6_header_t));
+ ip60 = vlib_buffer_get_current (b0);
+
+ b0->current_length = len + sizeof (*ip60) + sizeof (udp_header_t);
+ ip60->ip_version_traffic_class_and_flow_label =
+ clib_host_to_net_u32 (0x6 << 28);
+ ip60->payload_length =
+ clib_host_to_net_u16 (b0->current_length - sizeof (*ip60));
+ ip60->protocol = IP_PROTOCOL_UDP;
+ ip60->hop_limit = 0xff;
+ clib_memcpy_fast (ip60->src_address.as_u8, ip_addr_v6 (src).as_u8,
+ sizeof (ip60->src_address));
+ clib_memcpy_fast (ip60->dst_address.as_u8, ip_addr_v6 (dst).as_u8,
+ sizeof (ip60->src_address));
+ }
+
+ b0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index;
vnet_buffer (b0)->sw_if_index[VLIB_TX] = ~0;
+ u32 next_index = (ip_addr_version (dst) == AF_IP4) ?
+ ip4_lookup_node.index : ip6_lookup_node.index;
+
/* send the request */
- f = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
+ f = vlib_get_frame_to_node (vm, next_index);
to_next = vlib_frame_vector_args (f);
to_next[0] = bi0;
f->n_vectors = 1;
- vlib_put_frame_to_node (vm, ip4_lookup_node.index, f);
+ vlib_put_frame_to_node (vm, next_index, f);
}
static void
ikev2_initiate_delete_ike_sa_internal (vlib_main_t * vm,
ikev2_main_per_thread_data_t * tkm,
- ikev2_sa_t * sa)
+ ikev2_sa_t * sa, u8 send_notification)
{
ikev2_main_t *km = &ikev2_main;
- ip4_address_t *src, *dst;
+ ip_address_t *src, *dst;
vlib_buffer_t *b0;
+ ikev2_child_sa_t *c;
/* Create the Initiator notification for IKE SA removal */
ike_header_t *ike0;
u32 bi0 = 0;
int len;
- bi0 = ikev2_get_new_ike_header_buff (vm, &b0);
- if (!bi0)
- {
- ikev2_log_error ("buffer alloc failure");
- return;
- }
-
- ike0 = vlib_buffer_get_current (b0);
- ike0->exchange = IKEV2_EXCHANGE_INFORMATIONAL;
- ike0->ispi = clib_host_to_net_u64 (sa->ispi);
- ike0->rspi = clib_host_to_net_u64 (sa->rspi);
vec_resize (sa->del, 1);
sa->del->protocol_id = IKEV2_PROTOCOL_IKE;
sa->del->spi = sa->ispi;
- ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id + 1);
- sa->last_init_msg_id = clib_net_to_host_u32 (ike0->msgid);
- len = ikev2_generate_message (b0, sa, ike0, 0, 0);
- if (~0 == len)
- return;
- if (sa->is_initiator)
+ if (send_notification)
{
- src = &sa->iaddr;
- dst = &sa->raddr;
- }
- else
- {
- dst = &sa->iaddr;
- src = &sa->raddr;
- }
+ bi0 = ikev2_get_new_ike_header_buff (vm, &b0);
+ if (!bi0)
+ {
+ ikev2_log_error ("buffer alloc failure");
+ goto delete_sa;
+ }
+
+ ike0 = vlib_buffer_get_current (b0);
+ ike0->exchange = IKEV2_EXCHANGE_INFORMATIONAL;
+ ike0->ispi = clib_host_to_net_u64 (sa->ispi);
+ ike0->rspi = clib_host_to_net_u64 (sa->rspi);
+ ike0->flags = 0;
+ ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id + 1);
+ sa->last_init_msg_id = clib_net_to_host_u32 (ike0->msgid);
+ len = ikev2_generate_message (b0, sa, ike0, 0, 0);
+ if (~0 == len)
+ return;
+
+ if (ikev2_natt_active (sa))
+ len = ikev2_insert_non_esp_marker (ike0, len);
- ikev2_send_ike (vm, src, dst, bi0, len,
- ikev2_get_port (sa), sa->dst_port, 0);
+ if (sa->is_initiator)
+ {
+ src = &sa->iaddr;
+ dst = &sa->raddr;
+ }
+ else
+ {
+ dst = &sa->iaddr;
+ src = &sa->raddr;
+ }
+ ikev2_send_ike (vm, src, dst, bi0, len,
+ ikev2_get_port (sa), sa->dst_port, 0);
+ }
+
+delete_sa:
/* delete local SA */
- ikev2_child_sa_t *c;
vec_foreach (c, sa->childs)
ikev2_delete_tunnel_interface (km->vnet_main, sa, c);
u32 *sai;
u32 *del_sai = 0;
+ /* *INDENT-OFF* */
+ pool_foreach(sa, km->sais, ({
+ if (pi == sa->profile_index)
+ vec_add1 (del_sai, sa - km->sais);
+ }));
+ /* *INDENT-ON* */
+
+ vec_foreach (sai, del_sai)
+ {
+ sa = pool_elt_at_index (km->sais, sai[0]);
+ ikev2_sa_free_all_vec (sa);
+ hash_unset (km->sa_by_ispi, sa->ispi);
+ pool_put (km->sais, sa);
+ }
+ vec_reset_length (del_sai);
+
vec_foreach (tkm, km->per_thread_data)
{
/* *INDENT-OFF* */
vec_foreach (sai, del_sai)
{
sa = pool_elt_at_index (tkm->sas, sai[0]);
- ikev2_initiate_delete_ike_sa_internal (km->vlib_main, tkm, sa);
+ ikev2_initiate_delete_ike_sa_internal (km->vlib_main, tkm, sa, 1);
}
vec_reset_length (del_sai);
return 0;
}
+static int
+ikev2_is_id_supported (u8 id_type)
+{
+ return (id_type == IKEV2_ID_TYPE_ID_IPV4_ADDR ||
+ id_type == IKEV2_ID_TYPE_ID_IPV6_ADDR ||
+ id_type == IKEV2_ID_TYPE_ID_RFC822_ADDR ||
+ id_type == IKEV2_ID_TYPE_ID_FQDN);
+}
+
clib_error_t *
ikev2_set_profile_id (vlib_main_t * vm, u8 * name, u8 id_type, u8 * data,
int is_local)
ikev2_profile_t *p;
clib_error_t *r;
- if (id_type > IKEV2_ID_TYPE_ID_RFC822_ADDR
- && id_type < IKEV2_ID_TYPE_ID_KEY_ID)
+ if (!ikev2_is_id_supported (id_type))
{
r = clib_error_return (0, "unsupported identity type %U",
format_ikev2_id_type, id_type);
return 0;
}
+static_always_inline void
+ikev2_set_ts_type (ikev2_ts_t * ts, const ip_address_t * addr)
+{
+ if (ip_addr_version (addr) == AF_IP4)
+ ts->ts_type = TS_IPV4_ADDR_RANGE;
+ else
+ ts->ts_type = TS_IPV6_ADDR_RANGE;
+}
+
+static_always_inline void
+ikev2_set_ts_addrs (ikev2_ts_t * ts, const ip_address_t * start,
+ const ip_address_t * end)
+{
+ ip_address_copy (&ts->start_addr, start);
+ ip_address_copy (&ts->end_addr, end);
+}
+
clib_error_t *
ikev2_set_profile_ts (vlib_main_t * vm, u8 * name, u8 protocol_id,
- u16 start_port, u16 end_port, ip4_address_t start_addr,
- ip4_address_t end_addr, int is_local)
+ u16 start_port, u16 end_port, ip_address_t start_addr,
+ ip_address_t end_addr, int is_local)
{
ikev2_profile_t *p;
clib_error_t *r;
return r;
}
+ if (ip_addr_version (&start_addr) != ip_addr_version (&end_addr))
+ return clib_error_return (0, "IP address version mismatch!");
+
if (is_local)
{
- p->loc_ts.start_addr.as_u32 = start_addr.as_u32;
- p->loc_ts.end_addr.as_u32 = end_addr.as_u32;
+ ikev2_set_ts_addrs (&p->loc_ts, &start_addr, &end_addr);
p->loc_ts.start_port = start_port;
p->loc_ts.end_port = end_port;
p->loc_ts.protocol_id = protocol_id;
- p->loc_ts.ts_type = 7;
+ ikev2_set_ts_type (&p->loc_ts, &start_addr);
}
else
{
- p->rem_ts.start_addr.as_u32 = start_addr.as_u32;
- p->rem_ts.end_addr.as_u32 = end_addr.as_u32;
+ ikev2_set_ts_addrs (&p->rem_ts, &start_addr, &end_addr);
p->rem_ts.start_port = start_port;
p->rem_ts.end_port = end_port;
p->rem_ts.protocol_id = protocol_id;
- p->rem_ts.ts_type = 7;
+ ikev2_set_ts_type (&p->rem_ts, &start_addr);
}
return 0;
clib_error_t *
ikev2_set_profile_responder (vlib_main_t * vm, u8 * name,
- u32 sw_if_index, ip4_address_t ip4)
+ u32 sw_if_index, ip_address_t addr)
{
ikev2_profile_t *p;
clib_error_t *r;
}
p->responder.sw_if_index = sw_if_index;
- p->responder.ip4 = ip4;
+ ip_address_copy (&p->responder.addr, &addr);
return 0;
}
return 0;
}
+static int
+ikev2_get_if_address (u32 sw_if_index, ip_address_family_t af,
+ ip_address_t * out_addr)
+{
+ ip4_address_t *if_ip4;
+ ip6_address_t *if_ip6;
+
+ if (af == AF_IP4)
+ {
+ if_ip4 = ip4_interface_first_address (&ip4_main, sw_if_index, 0);
+ if (if_ip4)
+ {
+ ip_address_set (out_addr, if_ip4, AF_IP4);
+ return 1;
+ }
+ }
+ else
+ {
+ if_ip6 = ip6_interface_first_address (&ip6_main, sw_if_index);
+ if (if_ip6)
+ {
+ ip_address_set (out_addr, if_ip6, AF_IP6);
+ return 1;
+ }
+ }
+ return 0;
+}
+
clib_error_t *
ikev2_initiate_sa_init (vlib_main_t * vm, u8 * name)
{
ikev2_profile_t *p;
clib_error_t *r;
- ip4_main_t *im = &ip4_main;
ikev2_main_t *km = &ikev2_main;
+ vlib_buffer_t *b0;
+ ike_header_t *ike0;
+ u32 bi0 = 0;
+ int len = sizeof (ike_header_t), valid_ip = 0;
+ ip_address_t if_ip = ip_address_initializer;
p = ikev2_profile_index_by_name (name);
return r;
}
- if (p->responder.sw_if_index == ~0 || p->responder.ip4.data_u32 == 0)
+ if (p->responder.sw_if_index == ~0
+ || ip_address_is_zero (&p->responder.addr))
{
r = clib_error_return (0, "responder not set for profile %v", name);
return r;
}
+ if (ikev2_get_if_address (p->responder.sw_if_index,
+ ip_addr_version (&p->responder.addr), &if_ip))
+ {
+ valid_ip = 1;
+ }
- /* Create the Initiator Request */
- {
- vlib_buffer_t *b0;
- ike_header_t *ike0;
- u32 bi0 = 0;
- ip_lookup_main_t *lm = &im->lookup_main;
- u32 if_add_index0;
- int len = sizeof (ike_header_t);
-
- /* Get own iface IP */
- if_add_index0 =
- lm->if_address_pool_index_by_sw_if_index[p->responder.sw_if_index];
- ip_interface_address_t *if_add =
- pool_elt_at_index (lm->if_address_pool, if_add_index0);
- ip4_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
-
- bi0 = ikev2_get_new_ike_header_buff (vm, &b0);
- if (!bi0)
- {
- char *errmsg = "buffer alloc failure";
- ikev2_log_error (errmsg);
- return clib_error_return (0, errmsg);
- }
- ike0 = vlib_buffer_get_current (b0);
-
- /* Prepare the SA and the IKE payload */
- ikev2_sa_t sa;
- clib_memset (&sa, 0, sizeof (ikev2_sa_t));
- ikev2_payload_chain_t *chain = 0;
- ikev2_payload_new_chain (chain);
-
- /* Build the IKE proposal payload */
- ikev2_sa_proposal_t *proposals = 0;
- ikev2_set_initiator_proposals (vm, &sa, &p->ike_ts, &proposals, 1);
- proposals[0].proposal_num = 1;
- proposals[0].protocol_id = IKEV2_PROTOCOL_IKE;
-
- /* Add and then cleanup proposal data */
- ikev2_payload_add_sa (chain, proposals);
- ikev2_sa_free_proposal_vector (&proposals);
-
- sa.is_initiator = 1;
- sa.profile_index = p - km->profiles;
- sa.state = IKEV2_STATE_SA_INIT;
- sa.tun_itf = p->tun_itf;
- sa.udp_encap = p->udp_encap;
- sa.ipsec_over_udp_port = p->ipsec_over_udp_port;
- sa.is_tun_itf_set = 1;
- sa.initial_contact = 1;
- sa.dst_port = IKEV2_PORT;
- ikev2_generate_sa_init_data (&sa);
- ikev2_payload_add_ke (chain, sa.dh_group, sa.i_dh_data);
- ikev2_payload_add_nonce (chain, sa.i_nonce);
-
- /* Build the child SA proposal */
- vec_resize (sa.childs, 1);
- ikev2_set_initiator_proposals (vm, &sa, &p->esp_ts,
- &sa.childs[0].i_proposals, 0);
- sa.childs[0].i_proposals[0].proposal_num = 1;
- sa.childs[0].i_proposals[0].protocol_id = IKEV2_PROTOCOL_ESP;
- RAND_bytes ((u8 *) & sa.childs[0].i_proposals[0].spi,
- sizeof (sa.childs[0].i_proposals[0].spi));
-
- /* Add NAT detection notification messages (mandatory) */
- u8 *nat_detection_sha1 =
- ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa.ispi),
- clib_host_to_net_u64 (sa.rspi),
- if_ip->as_u32,
- clib_host_to_net_u16 (IKEV2_PORT));
-
- ikev2_payload_add_notify (chain, IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP,
- nat_detection_sha1);
- vec_free (nat_detection_sha1);
- nat_detection_sha1 =
- ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa.ispi),
- clib_host_to_net_u64 (sa.rspi),
- p->responder.ip4.as_u32,
- clib_host_to_net_u16 (sa.dst_port));
- ikev2_payload_add_notify (chain,
- IKEV2_NOTIFY_MSG_NAT_DETECTION_DESTINATION_IP,
- nat_detection_sha1);
- vec_free (nat_detection_sha1);
-
- u8 *sig_hash_algo = vec_new (u8, 8);
- u64 tmpsig = clib_host_to_net_u64 (0x0001000200030004);
- clib_memcpy_fast (sig_hash_algo, &tmpsig, sizeof (tmpsig));
- ikev2_payload_add_notify (chain,
- IKEV2_NOTIFY_MSG_SIGNATURE_HASH_ALGORITHMS,
- sig_hash_algo);
- vec_free (sig_hash_algo);
-
-
- /* Buffer update and boilerplate */
- len += vec_len (chain->data);
- ike0->nextpayload = chain->first_payload_type;
- ike0->length = clib_host_to_net_u32 (len);
- clib_memcpy_fast (ike0->payload, chain->data, vec_len (chain->data));
- ikev2_payload_destroy_chain (chain);
-
- ike0->version = IKE_VERSION_2;
- ike0->flags = IKEV2_HDR_FLAG_INITIATOR;
- ike0->exchange = IKEV2_EXCHANGE_SA_INIT;
- ike0->ispi = clib_host_to_net_u64 (sa.ispi);
- ike0->rspi = 0;
- ike0->msgid = 0;
-
- /* store whole IKE payload - needed for PSK auth */
- vec_reset_length (sa.last_sa_init_req_packet_data);
- vec_add (sa.last_sa_init_req_packet_data, ike0, len);
-
- /* add data to the SA then add it to the pool */
- sa.iaddr.as_u32 = if_ip->as_u32;
- sa.raddr.as_u32 = p->responder.ip4.as_u32;
- sa.i_id.type = p->loc_id.type;
- sa.i_id.data = vec_dup (p->loc_id.data);
- sa.r_id.type = p->rem_id.type;
- sa.r_id.data = vec_dup (p->rem_id.data);
- sa.i_auth.method = p->auth.method;
- sa.i_auth.hex = p->auth.hex;
- sa.i_auth.data = vec_dup (p->auth.data);
- sa.sw_if_index = p->responder.sw_if_index;
- vec_add (sa.childs[0].tsi, &p->loc_ts, 1);
- vec_add (sa.childs[0].tsr, &p->rem_ts, 1);
-
- ikev2_initial_contact_cleanup (&sa);
-
- /* add SA to the pool */
- ikev2_sa_t *sa0 = 0;
- pool_get (km->sais, sa0);
- clib_memcpy_fast (sa0, &sa, sizeof (*sa0));
- hash_set (km->sa_by_ispi, sa0->ispi, sa0 - km->sais);
-
- ikev2_send_ike (vm, if_ip, &p->responder.ip4, bi0, len,
- IKEV2_PORT, sa.dst_port, sa.sw_if_index);
-
- ikev2_elog_exchange ("ispi %lx rspi %lx IKEV2_EXCHANGE_SA_INIT sent to "
- "%d.%d.%d.%d", clib_host_to_net_u64 (sa0->ispi), 0,
- p->responder.ip4.as_u32);
- }
+ bi0 = ikev2_get_new_ike_header_buff (vm, &b0);
+ if (!bi0)
+ {
+ char *errmsg = "buffer alloc failure";
+ ikev2_log_error (errmsg);
+ return clib_error_return (0, errmsg);
+ }
+ ike0 = vlib_buffer_get_current (b0);
+
+ /* Prepare the SA and the IKE payload */
+ ikev2_sa_t sa;
+ clib_memset (&sa, 0, sizeof (ikev2_sa_t));
+ ikev2_payload_chain_t *chain = 0;
+ ikev2_payload_new_chain (chain);
+
+ /* Build the IKE proposal payload */
+ ikev2_sa_proposal_t *proposals = 0;
+ ikev2_set_initiator_proposals (vm, &sa, &p->ike_ts, &proposals, 1);
+ proposals[0].proposal_num = 1;
+ proposals[0].protocol_id = IKEV2_PROTOCOL_IKE;
+
+ /* Add and then cleanup proposal data */
+ ikev2_payload_add_sa (chain, proposals);
+ ikev2_sa_free_proposal_vector (&proposals);
+
+ sa.is_initiator = 1;
+ sa.profile_index = p - km->profiles;
+ sa.state = IKEV2_STATE_SA_INIT;
+ sa.tun_itf = p->tun_itf;
+ sa.udp_encap = p->udp_encap;
+ if (p->natt_disabled)
+ sa.natt_state = IKEV2_NATT_DISABLED;
+ sa.ipsec_over_udp_port = p->ipsec_over_udp_port;
+ sa.is_tun_itf_set = 1;
+ sa.initial_contact = 1;
+ sa.dst_port = IKEV2_PORT;
+ ikev2_generate_sa_init_data (&sa);
+ ikev2_payload_add_ke (chain, sa.dh_group, sa.i_dh_data);
+ ikev2_payload_add_nonce (chain, sa.i_nonce);
+
+ /* Build the child SA proposal */
+ vec_resize (sa.childs, 1);
+ ikev2_set_initiator_proposals (vm, &sa, &p->esp_ts,
+ &sa.childs[0].i_proposals, 0);
+ sa.childs[0].i_proposals[0].proposal_num = 1;
+ sa.childs[0].i_proposals[0].protocol_id = IKEV2_PROTOCOL_ESP;
+ RAND_bytes ((u8 *) & sa.childs[0].i_proposals[0].spi,
+ sizeof (sa.childs[0].i_proposals[0].spi));
+
+ /* Add NAT detection notification messages (mandatory) */
+ u8 *nat_detection_sha1 =
+ ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa.ispi),
+ clib_host_to_net_u64 (sa.rspi),
+ &if_ip, clib_host_to_net_u16 (IKEV2_PORT));
+
+ ikev2_payload_add_notify (chain, IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP,
+ nat_detection_sha1);
+ vec_free (nat_detection_sha1);
+ nat_detection_sha1 =
+ ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa.ispi),
+ clib_host_to_net_u64 (sa.rspi),
+ &p->responder.addr,
+ clib_host_to_net_u16 (sa.dst_port));
+ ikev2_payload_add_notify (chain,
+ IKEV2_NOTIFY_MSG_NAT_DETECTION_DESTINATION_IP,
+ nat_detection_sha1);
+ vec_free (nat_detection_sha1);
+
+ u8 *sig_hash_algo = vec_new (u8, 8);
+ u64 tmpsig = clib_host_to_net_u64 (0x0001000200030004);
+ clib_memcpy_fast (sig_hash_algo, &tmpsig, sizeof (tmpsig));
+ ikev2_payload_add_notify (chain,
+ IKEV2_NOTIFY_MSG_SIGNATURE_HASH_ALGORITHMS,
+ sig_hash_algo);
+ vec_free (sig_hash_algo);
+
+ /* Buffer update and boilerplate */
+ len += vec_len (chain->data);
+ ike0->nextpayload = chain->first_payload_type;
+ ike0->length = clib_host_to_net_u32 (len);
+ clib_memcpy_fast (ike0->payload, chain->data, vec_len (chain->data));
+ ikev2_payload_destroy_chain (chain);
+
+ ike0->version = IKE_VERSION_2;
+ ike0->flags = IKEV2_HDR_FLAG_INITIATOR;
+ ike0->exchange = IKEV2_EXCHANGE_SA_INIT;
+ ike0->ispi = clib_host_to_net_u64 (sa.ispi);
+ ike0->rspi = 0;
+ ike0->msgid = 0;
+
+ /* store whole IKE payload - needed for PSK auth */
+ vec_reset_length (sa.last_sa_init_req_packet_data);
+ vec_add (sa.last_sa_init_req_packet_data, ike0, len);
+
+ /* add data to the SA then add it to the pool */
+ ip_address_copy (&sa.iaddr, &if_ip);
+ ip_address_copy (&sa.raddr, &p->responder.addr);
+ sa.i_id.type = p->loc_id.type;
+ sa.i_id.data = vec_dup (p->loc_id.data);
+ sa.r_id.type = p->rem_id.type;
+ sa.r_id.data = vec_dup (p->rem_id.data);
+ sa.i_auth.method = p->auth.method;
+ sa.i_auth.hex = p->auth.hex;
+ sa.i_auth.data = vec_dup (p->auth.data);
+ sa.sw_if_index = p->responder.sw_if_index;
+ vec_add (sa.childs[0].tsi, &p->loc_ts, 1);
+ vec_add (sa.childs[0].tsr, &p->rem_ts, 1);
+
+ ikev2_initial_contact_cleanup (0, &sa);
+
+ /* add SA to the pool */
+ ikev2_sa_t *sa0 = 0;
+ pool_get (km->sais, sa0);
+ clib_memcpy_fast (sa0, &sa, sizeof (*sa0));
+ hash_set (km->sa_by_ispi, sa0->ispi, sa0 - km->sais);
+
+ if (valid_ip)
+ {
+ ikev2_send_ike (vm, &if_ip, &p->responder.addr, bi0, len,
+ IKEV2_PORT, sa.dst_port, sa.sw_if_index);
+
+ ikev2_elog_exchange
+ ("ispi %lx rspi %lx IKEV2_EXCHANGE_SA_INIT sent to ",
+ clib_host_to_net_u64 (sa0->ispi), 0,
+ ip_addr_v4 (&p->responder.addr).as_u32,
+ ip_addr_version (&p->responder.addr) == AF_IP4);
+ }
+ else
+ {
+ r =
+ clib_error_return (0, "interface %U does not have any IP address!",
+ format_vnet_sw_if_index_name, vnet_get_main (),
+ p->responder.sw_if_index);
+ return r;
+ }
return 0;
}
ike0->exchange = IKEV2_EXCHANGE_INFORMATIONAL;
ike0->ispi = clib_host_to_net_u64 (sa->ispi);
ike0->rspi = clib_host_to_net_u64 (sa->rspi);
+ ike0->flags = 0;
vec_resize (sa->del, 1);
sa->del->protocol_id = IKEV2_PROTOCOL_ESP;
sa->del->spi = csa->i_proposals->spi;
if (~0 == len)
return;
- if (sa->natt)
+ if (ikev2_natt_active (sa))
len = ikev2_insert_non_esp_marker (ike0, len);
ikev2_send_ike (vm, &sa->iaddr, &sa->raddr, bi0, len,
ikev2_get_port (sa), sa->dst_port, sa->sw_if_index);
return r;
}
- ikev2_initiate_delete_ike_sa_internal (vm, ftkm, fsa);
+ ikev2_initiate_delete_ike_sa_internal (vm, ftkm, fsa, 1);
return 0;
}
if (~0 == len)
return;
- if (sa->natt)
+ if (ikev2_natt_active (sa))
len = ikev2_insert_non_esp_marker (ike0, len);
ikev2_send_ike (vm, &sa->iaddr, &sa->raddr, bi0, len,
ikev2_get_port (sa), ikev2_get_port (sa), sa->sw_if_index);
return 0;
}
+static int
+ikev2_sa_sw_if_match (ikev2_sa_t * sa, u32 sw_if_index)
+{
+ return (sa->sw_if_index == sw_if_index) && sa->is_initiator;
+}
+
+static void
+ikev2_sa_del (ikev2_profile_t * p, u32 sw_if_index)
+{
+ u64 *ispi, *ispi_vec = 0;
+ ikev2_sa_t *sa, **sap, **sa_vec = 0;
+ ikev2_main_t *km = &ikev2_main;
+ ikev2_main_per_thread_data_t *tkm;
+ p->responder.sw_if_index = ~0;
+
+ vec_foreach (tkm, km->per_thread_data)
+ {
+ /* *INDENT-OFF* */
+ pool_foreach (sa, tkm->sas, ({
+ if (ikev2_sa_sw_if_match (sa, sw_if_index))
+ vec_add1 (sa_vec, sa);
+ }));
+ /* *INDENT-ON* */
+
+ vec_foreach (sap, sa_vec)
+ {
+ ikev2_initiate_delete_ike_sa_internal (km->vlib_main, tkm, *sap, 0);
+ }
+ vec_reset_length (sa_vec);
+ }
+ vec_free (sa_vec);
+
+ /* *INDENT-OFF* */
+ pool_foreach (sa, km->sais, ({
+ if (ikev2_sa_sw_if_match (sa, sw_if_index))
+ vec_add1 (ispi_vec, sa->ispi);
+ }));
+ /* *INDENT-ON* */
+
+ vec_foreach (ispi, ispi_vec)
+ {
+ ikev2_del_sa_init_from_main (ispi);
+ }
+
+ vec_free (ispi_vec);
+}
+
+static clib_error_t *
+ikev2_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
+{
+ ikev2_main_t *km = &ikev2_main;
+ ikev2_profile_t *p;
+
+ if (is_add)
+ return 0;
+
+ /* *INDENT-OFF* */
+ pool_foreach (p, km->profiles, ({
+ if (p->responder.sw_if_index == sw_if_index)
+ ikev2_sa_del (p, sw_if_index);
+ }));
+ /* *INDENT-ON* */
+
+ return 0;
+}
+
+VNET_SW_INTERFACE_ADD_DEL_FUNCTION (ikev2_sw_interface_add_del);
+
clib_error_t *
ikev2_init (vlib_main_t * vm)
{
km->sw_if_indices = hash_create (0, 0);
km->udp_ports = hash_create (0, sizeof (uword));
- udp_register_dst_port (vm, IKEV2_PORT, ikev2_node.index, 1);
- udp_register_dst_port (vm, IKEV2_PORT_NATT, ikev2_node.index, 1);
+ udp_register_dst_port (vm, IKEV2_PORT, ikev2_node_ip4.index, 1);
+ udp_register_dst_port (vm, IKEV2_PORT, ikev2_node_ip6.index, 0);
+ udp_register_dst_port (vm, IKEV2_PORT_NATT, ikev2_node_ip4.index, 1);
+ udp_register_dst_port (vm, IKEV2_PORT_NATT, ikev2_node_ip6.index, 0);
- vlib_punt_hdl_t punt_hdl = vlib_punt_client_register ("ikev2");
+ vlib_punt_hdl_t punt_hdl = vlib_punt_client_register ("ikev2-ip4");
vlib_punt_register (punt_hdl, ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0],
- "ikev2");
+ "ikev2-ip4");
ikev2_cli_reference ();
km->log_level = IKEV2_LOG_ERROR;
ip46_address_t remote_ip;
if (sa->is_initiator)
{
- ip46_address_set_ip4 (&local_ip, &sa->iaddr);
- ip46_address_set_ip4 (&remote_ip, &sa->raddr);
+ local_ip = to_ip46 (ip_addr_version (&sa->iaddr),
+ ip_addr_bytes (&sa->iaddr));
+ remote_ip = to_ip46 (ip_addr_version (&sa->raddr),
+ ip_addr_bytes (&sa->raddr));
}
else
{
- ip46_address_set_ip4 (&local_ip, &sa->raddr);
- ip46_address_set_ip4 (&remote_ip, &sa->iaddr);
+ local_ip = to_ip46 (ip_addr_version (&sa->raddr),
+ ip_addr_bytes (&sa->raddr));
+ remote_ip = to_ip46 (ip_addr_version (&sa->iaddr),
+ ip_addr_bytes (&sa->iaddr));
}
/* *INDENT-OFF* */
return 0;
}
+clib_error_t *
+ikev2_profile_natt_disable (u8 * name)
+{
+ ikev2_profile_t *p = ikev2_profile_index_by_name (name);
+ if (!p)
+ return clib_error_return (0, "unknown profile %v", name);
+
+ p->natt_disabled = 1;
+ return 0;
+}
+
static void
ikev2_mngr_process_ipsec_sa (ipsec_sa_t * ipsec_sa)
{
}
}
+static void
+ikev2_process_pending_sa_init_one (ikev2_main_t * km, ikev2_sa_t * sa)
+{
+ ikev2_profile_t *p;
+ u32 bi0;
+ u8 *nat_sha, *np;
+
+ if (ip_address_is_zero (&sa->iaddr))
+ {
+ p = pool_elt_at_index (km->profiles, sa->profile_index);
+ if (!ikev2_get_if_address (p->responder.sw_if_index,
+ ip_addr_version (&p->responder.addr),
+ &sa->iaddr))
+ return;
+
+ /* update NAT detection payload */
+ np =
+ ikev2_find_ike_notify_payload
+ ((ike_header_t *) sa->last_sa_init_req_packet_data,
+ IKEV2_NOTIFY_MSG_NAT_DETECTION_SOURCE_IP);
+ if (np)
+ {
+ nat_sha =
+ ikev2_compute_nat_sha1 (clib_host_to_net_u64 (sa->ispi),
+ clib_host_to_net_u64 (sa->rspi),
+ &sa->iaddr,
+ clib_host_to_net_u16 (IKEV2_PORT));
+ clib_memcpy_fast (np, nat_sha, vec_len (nat_sha));
+ vec_free (nat_sha);
+ }
+ }
+
+ if (vlib_buffer_alloc (km->vlib_main, &bi0, 1) != 1)
+ return;
+
+ vlib_buffer_t *b = vlib_get_buffer (km->vlib_main, bi0);
+ clib_memcpy_fast (vlib_buffer_get_current (b),
+ sa->last_sa_init_req_packet_data,
+ vec_len (sa->last_sa_init_req_packet_data));
+
+ ikev2_send_ike (km->vlib_main, &sa->iaddr, &sa->raddr, bi0,
+ vec_len (sa->last_sa_init_req_packet_data),
+ ikev2_get_port (sa), IKEV2_PORT, sa->sw_if_index);
+}
+
static void
ikev2_process_pending_sa_init (ikev2_main_t * km)
{
if (sa->init_response_received)
continue;
- u32 bi0;
- if (vlib_buffer_alloc (km->vlib_main, &bi0, 1) != 1)
- return;
-
- vlib_buffer_t * b = vlib_get_buffer (km->vlib_main, bi0);
- clib_memcpy_fast (vlib_buffer_get_current (b),
- sa->last_sa_init_req_packet_data,
- vec_len (sa->last_sa_init_req_packet_data));
- ikev2_send_ike (km->vlib_main, &sa->iaddr, &sa->raddr, bi0,
- vec_len (sa->last_sa_init_req_packet_data),
- ikev2_get_port (sa), IKEV2_PORT, sa->sw_if_index);
+ ikev2_process_pending_sa_init_one (km, sa);
}));
/* *INDENT-ON* */
}
-static vlib_node_registration_t ikev2_mngr_process_node;
-
static void
ikev2_send_informational_request (ikev2_sa_t * sa)
{
ikev2_main_t *km = &ikev2_main;
- ip4_address_t *src, *dst;
+ ip_address_t *src, *dst;
ike_header_t *ike0;
vlib_buffer_t *b0;
u32 bi0 = 0;
ike0->ispi = clib_host_to_net_u64 (sa->ispi);
ike0->rspi = clib_host_to_net_u64 (sa->rspi);
ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id + 1);
+ ike0->flags = 0;
sa->last_init_msg_id = clib_net_to_host_u32 (ike0->msgid);
len = ikev2_generate_message (b0, sa, ike0, 0, 0);
if (~0 == len)
return;
- if (sa->natt)
+ if (ikev2_natt_active (sa))
len = ikev2_insert_non_esp_marker (ike0, len);
if (sa->is_initiator)
sa->sw_if_index);
}
+void
+ikev2_disable_dpd (void)
+{
+ ikev2_main_t *km = &ikev2_main;
+ km->dpd_disabled = 1;
+}
+
static_always_inline int
ikev2_mngr_process_responder_sas (ikev2_sa_t * sa)
{
while (1)
{
- u8 req_sent = 0;
- vlib_process_wait_for_event_or_clock (vm, 1);
+ vlib_process_wait_for_event_or_clock (vm, 2);
vlib_process_get_events (vm, NULL);
/* process ike child sas */
pool_foreach (sa, tkm->sas, ({
ikev2_child_sa_t *c;
u8 del_old_ids = 0;
+
+ if (sa->state != IKEV2_STATE_AUTHENTICATED)
+ continue;
+
if (sa->old_remote_id_present && 0 > sa->old_id_expiration)
{
sa->old_remote_id_present = 0;
sa->old_id_expiration -= 1;
vec_foreach (c, sa->childs)
- {
- req_sent |= ikev2_mngr_process_child_sa(sa, c, del_old_ids);
- }
+ ikev2_mngr_process_child_sa(sa, c, del_old_ids);
- if (ikev2_mngr_process_responder_sas (sa))
+ if (!km->dpd_disabled && ikev2_mngr_process_responder_sas (sa))
vec_add1 (to_be_deleted, sa - tkm->sas);
}));
/* *INDENT-ON* */
/* *INDENT-ON* */
ikev2_process_pending_sa_init (km);
-
- if (req_sent)
- {
- vlib_process_wait_for_event_or_clock (vm, 5);
- vlib_process_get_events (vm, NULL);
- req_sent = 0;
- }
-
}
return 0;
}
Code Review / vpp.git / blobdiff