#include <plugins/ikev2/ikev2_priv.h>
#include <openssl/sha.h>
#include <vnet/ipsec/ipsec_punt.h>
+#include <plugins/ikev2/ikev2.api_enum.h>
#define IKEV2_LIVENESS_RETRIES 3
#define IKEV2_LIVENESS_PERIOD_CHECK 30
return s;
}
-#define foreach_ikev2_error \
-_(PROCESSED, "IKEv2 packets processed") \
-_(IKE_SA_INIT_RETRANSMIT, "IKE_SA_INIT retransmit ") \
-_(IKE_SA_INIT_IGNORE, "IKE_SA_INIT ignore (IKE SA already auth)") \
-_(IKE_REQ_RETRANSMIT, "IKE request retransmit") \
-_(IKE_REQ_IGNORE, "IKE request ignore (old msgid)") \
-_(NOT_IKEV2, "Non IKEv2 packets received") \
-_(BAD_LENGTH, "Bad packet length") \
-_(MALFORMED_PACKET, "Malformed packet") \
-_(NO_BUFF_SPACE, "No buffer space")
-
-typedef enum
-{
-#define _(sym,str) IKEV2_ERROR_##sym,
- foreach_ikev2_error
-#undef _
- IKEV2_N_ERROR,
-} ikev2_error_t;
-
-static char *ikev2_error_strings[] = {
-#define _(sym,string) string,
- foreach_ikev2_error
-#undef _
-};
-
typedef enum
{
IKEV2_NEXT_IP4_LOOKUP,
}
static int
-ikev2_process_sa_init_req (vlib_main_t * vm,
- ikev2_sa_t * sa, ike_header_t * ike,
- udp_header_t * udp, u32 len)
+ikev2_process_sa_init_req (vlib_main_t *vm, ikev2_sa_t *sa, ike_header_t *ike,
+ udp_header_t *udp, u32 len, u32 sw_if_index)
{
u8 nonce[IKEV2_NONCE_SIZE];
int p = 0;
ip_addr_version (&sa->iaddr) == AF_IP4);
sa->ispi = clib_net_to_host_u64 (ike->ispi);
+ sa->sw_if_index = sw_if_index;
/* store whole IKE payload - needed for PSK auth */
vec_reset_length (sa->last_sa_init_req_packet_data);
}
static u32
-ikev2_generate_message (vlib_buffer_t * b, ikev2_sa_t * sa,
- ike_header_t * ike, void *user, udp_header_t * udp)
+ikev2_generate_message (vlib_buffer_t *b, ikev2_sa_t *sa, ike_header_t *ike,
+ void *user, udp_header_t *udp, ikev2_stats_t *stats)
{
ikev2_main_t *km = &ikev2_main;
u16 buffer_data_size = vlib_buffer_get_default_data_size (km->vlib_main);
vec_free (data);
sa->unsupported_cp = 0;
}
- /* else send empty response */
+ else
+ /* else send empty response */
+ {
+ if (ike_hdr_is_response (ike))
+ {
+ ASSERT (stats != 0);
+ stats->n_keepalives++;
+ sa->stats.n_keepalives++;
+ }
+ }
}
else if (ike->exchange == IKEV2_EXCHANGE_CREATE_CHILD_SA)
{
/* req is retransmit */
if (sa->state == IKEV2_STATE_SA_INIT)
{
+ sa->stats.n_init_retransmit++;
tmp = (ike_header_t *) sa->last_sa_init_res_packet_data;
u32 slen = clib_net_to_host_u32 (tmp->length);
ike->ispi = tmp->ispi;
/* retransmitted req */
if (msg_id == sa->last_msg_id)
{
+ sa->stats.n_retransmit++;
ike_header_t *tmp = (ike_header_t *) sa->last_res_packet_data;
u32 slen = clib_net_to_host_u32 (tmp->length);
ike->ispi = tmp->ispi;
}
static_always_inline void
-ikev2_set_ip_address (ikev2_sa_t * sa, const void *iaddr,
- const void *raddr, const int af)
+ikev2_set_ip_address (ikev2_sa_t *sa, const void *iaddr, const void *raddr,
+ const ip_address_family_t af)
{
ip_address_set (&sa->raddr, raddr, af);
ip_address_set (&sa->iaddr, iaddr, af);
ikev2_elog_error (IKEV2_GENERATE_SA_INIT_OK_ERR_UNSUPP_STR);
}
+static void
+ikev2_update_stats (vlib_main_t *vm, u32 node_index, ikev2_stats_t *s)
+{
+ vlib_node_increment_counter (vm, node_index, IKEV2_ERROR_KEEPALIVE,
+ s->n_keepalives);
+ vlib_node_increment_counter (vm, node_index, IKEV2_ERROR_REKEY_REQ,
+ s->n_rekey_req);
+ vlib_node_increment_counter (vm, node_index, IKEV2_ERROR_INIT_SA_REQ,
+ s->n_sa_init_req);
+ vlib_node_increment_counter (vm, node_index, IKEV2_ERROR_IKE_AUTH_REQ,
+ s->n_sa_auth_req);
+}
+
static_always_inline uword
-ikev2_node_internal (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame,
- u8 is_ip4)
+ikev2_node_internal (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame, u8 is_ip4, u8 natt)
{
u32 n_left = frame->n_vectors, *from;
ikev2_main_t *km = &ikev2_main;
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
u16 nexts[VLIB_FRAME_SIZE], *next = nexts;
ikev2_main_per_thread_data_t *ptd = ikev2_get_per_thread_data ();
+ ikev2_stats_t _stats, *stats = &_stats;
int res;
+ clib_memset_u16 (stats, 0, sizeof (stats[0]) / sizeof (u16));
from = vlib_frame_vector_args (frame);
vlib_get_buffers (vm, from, bufs, n_left);
b = bufs;
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;
-
- ASSERT (0 == b0->punt_reason
- || (is_ip4
- && b0->punt_reason ==
- ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0]));
+ int is_req = 0;
- if (is_ip4
- && b0->punt_reason == ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0])
+ if (natt)
{
u8 *ptr = vlib_buffer_get_current (b0);
ip40 = (ip4_header_t *) ptr;
rlen = b0->current_length - ip_hdr_sz - sizeof (*udp0);
/* check for non-esp marker */
- if (*((u32 *) ike0) == 0)
+ if (natt)
{
+ ASSERT (*((u32 *) ike0) == 0);
ike0 =
(ike_header_t *) ((u8 *) ike0 + sizeof (ikev2_non_esp_marker));
rlen -= sizeof (ikev2_non_esp_marker);
- has_non_esp_marker = 1;
}
if (clib_net_to_host_u32 (ike0->length) != rlen)
if (ike_hdr_is_initiator (ike0))
{
+ sa0->stats.n_sa_init_req++;
+ stats->n_sa_init_req++;
if (ike0->rspi == 0)
{
if (is_ip4)
goto dispatch0;
}
- res = ikev2_process_sa_init_req (vm, sa0, ike0, udp0, rlen);
+ res = ikev2_process_sa_init_req (
+ vm, sa0, ike0, udp0, rlen,
+ vnet_buffer (b0)->sw_if_index[VLIB_RX]);
if (!res)
vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_MALFORMED_PACKET,
|| sa0->state == IKEV2_STATE_NOTIFY_AND_DELETE)
{
ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
- slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
+ slen =
+ ikev2_generate_message (b0, sa0, ike0, 0, udp0, stats);
if (~0 == slen)
vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
ike0->msgid =
clib_net_to_host_u32 (sai->last_init_msg_id);
sa0->last_init_msg_id = sai->last_init_msg_id + 1;
- slen =
- ikev2_generate_message (b0, sa0, ike0, 0, udp0);
+ slen = ikev2_generate_message (b0, sa0, ike0, 0,
+ udp0, stats);
if (~0 == slen)
vlib_node_increment_counter (vm,
node->node_index,
}
else
{
+ sa0->stats.n_sa_auth_req++;
+ stats->n_sa_auth_req++;
ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
- slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
+ slen =
+ ikev2_generate_message (b0, sa0, ike0, 0, udp0, stats);
if (~0 == slen)
vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
if (ike_hdr_is_request (ike0))
{
ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
- slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
+ slen =
+ ikev2_generate_message (b0, sa0, ike0, 0, udp0, stats);
if (~0 == slen)
vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
}
else
{
+ stats->n_rekey_req++;
+ sa0->stats.n_rekey_req++;
ike0->flags = IKEV2_HDR_FLAG_RESPONSE;
- slen = ikev2_generate_message (b0, sa0, ike0, 0, udp0);
+ slen =
+ ikev2_generate_message (b0, sa0, ike0, 0, udp0, stats);
if (~0 == slen)
vlib_node_increment_counter (vm, node->node_index,
IKEV2_ERROR_NO_BUFF_SPACE,
if (udp0->dst_port == clib_net_to_host_u16 (IKEV2_PORT_NATT)
&& ikev2_natt_active (sa0))
{
- if (!has_non_esp_marker)
+ if (!natt)
slen = ikev2_insert_non_esp_marker (ike0, slen);
}
}
else
{
- if (has_non_esp_marker)
+ if (natt)
slen += sizeof (ikev2_non_esp_marker);
u16 tp = udp0->dst_port;
b += 1;
}
+ ikev2_update_stats (vm, node->node_index, stats);
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);
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 */ );
+ return ikev2_node_internal (vm, node, frame, 1 /* is_ip4 */, 0);
+}
+
+static uword
+ikev2_ip4_natt (vlib_main_t *vm, vlib_node_runtime_t *node,
+ vlib_frame_t *frame)
+{
+ return ikev2_node_internal (vm, node, frame, 1 /* is_ip4 */, 1 /* natt */);
}
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 */ );
+ return ikev2_node_internal (vm, node, frame, 0 /* is_ip4 */, 0);
}
/* *INDENT-OFF* */
.format_trace = format_ikev2_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(ikev2_error_strings),
- .error_strings = ikev2_error_strings,
+ .n_errors = IKEV2_N_ERROR,
+ .error_counters = ikev2_error_counters,
+
+ .n_next_nodes = IKEV2_IP4_N_NEXT,
+ .next_nodes = {
+ [IKEV2_NEXT_IP4_LOOKUP] = "ip4-lookup",
+ [IKEV2_NEXT_IP4_ERROR_DROP] = "error-drop",
+ },
+};
+
+VLIB_REGISTER_NODE (ikev2_node_ip4_natt,static) = {
+ .function = ikev2_ip4_natt,
+ .name = "ikev2-ip4-natt",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ikev2_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = IKEV2_N_ERROR,
+ .error_counters = ikev2_error_counters,
.n_next_nodes = IKEV2_IP4_N_NEXT,
.next_nodes = {
.format_trace = format_ikev2_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(ikev2_error_strings),
- .error_strings = ikev2_error_strings,
+ .n_errors = IKEV2_N_ERROR,
+ .error_counters = ikev2_error_counters,
.n_next_nodes = IKEV2_IP6_N_NEXT,
.next_nodes = {
ike0->flags = 0;
ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id);
sa->last_init_msg_id += 1;
- len = ikev2_generate_message (b0, sa, ike0, 0, 0);
+ len = ikev2_generate_message (b0, sa, ike0, 0, 0, 0);
if (~0 == len)
return;
sa->del->spi = csa->i_proposals->spi;
ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id);
sa->last_init_msg_id += 1;
- len = ikev2_generate_message (b0, sa, ike0, 0, 0);
+ len = ikev2_generate_message (b0, sa, ike0, 0, 0, 0);
if (~0 == len)
return;
RAND_bytes ((u8 *) & proposals[0].spi, sizeof (proposals[0].spi));
rekey->spi = proposals[0].spi;
rekey->ispi = csa->i_proposals->spi;
- len = ikev2_generate_message (b0, sa, ike0, proposals, 0);
+ len = ikev2_generate_message (b0, sa, ike0, proposals, 0, 0);
if (~0 == len)
return;
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-ip4");
+ vlib_punt_hdl_t punt_hdl = vlib_punt_client_register ("ikev2-ip4-natt");
vlib_punt_register (punt_hdl, ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0],
- "ikev2-ip4");
+ "ikev2-ip4-natt");
ikev2_cli_reference ();
km->log_level = IKEV2_LOG_ERROR;
ike0->msgid = clib_host_to_net_u32 (sa->last_init_msg_id);
ike0->flags = 0;
sa->last_init_msg_id += 1;
- len = ikev2_generate_message (b0, sa, ike0, 0, 0);
+ len = ikev2_generate_message (b0, sa, ike0, 0, 0, 0);
if (~0 == len)
return;
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