#include <vnet/ipsec/ipsec.h>
#include <vnet/ipsec/esp.h>
+#include <vnet/ipsec/ipsec_io.h>
+#include <vnet/ipsec/ipsec_punt.h>
/* Statistics (not really errors) */
#define foreach_ipsec_if_input_error \
_(RX, "good packets received") \
_(DISABLED, "ipsec packets received on disabled interface") \
-_(NO_TUNNEL, "no matching tunnel")
+_(NO_TUNNEL, "no matching tunnel") \
+_(NAT_KEEPALIVE, "NAT Keepalive") \
+_(TOO_SHORT, "Too Short") \
+_(SPI_0, "SPI 0")
static char *ipsec_if_input_error_strings[] = {
#define _(sym,string) string,
typedef struct
{
- u32 spi;
+ union
+ {
+ ipsec4_tunnel_key_t key4;
+ ipsec6_tunnel_key_t key6;
+ };
+ u8 is_ip6;
u32 seq;
} ipsec_if_input_trace_t;
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ipsec_if_input_trace_t *t = va_arg (*args, ipsec_if_input_trace_t *);
- s = format (s, "IPSec: spi %u seq %u", t->spi, t->seq);
+ if (t->is_ip6)
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec6_tunnel_key, &t->key6, t->seq);
+ else
+ s = format (s, "IPSec: %U seq %u",
+ format_ipsec4_tunnel_key, &t->key4, t->seq);
return s;
}
-VLIB_NODE_FN (ipsec_if_input_node) (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * from_frame)
+always_inline u16
+ipsec_ip4_if_no_tunnel (vlib_node_runtime_t * node,
+ vlib_buffer_t * b,
+ const esp_header_t * esp,
+ const ip4_header_t * ip4, u16 offset)
+{
+ if (PREDICT_FALSE (0 == esp->spi))
+ {
+ b->error = node->errors[IPSEC_IF_INPUT_ERROR_SPI_0];
+ b->punt_reason =
+ ipsec_punt_reason[(ip4->protocol == IP_PROTOCOL_UDP ?
+ IPSEC_PUNT_IP4_SPI_UDP_0 :
+ IPSEC_PUNT_IP4_NO_SUCH_TUNNEL)];
+ }
+ else
+ {
+ b->error = node->errors[IPSEC_IF_INPUT_ERROR_NO_TUNNEL];
+ b->punt_reason = ipsec_punt_reason[IPSEC_PUNT_IP4_NO_SUCH_TUNNEL];
+ }
+ vlib_buffer_advance (b, -offset);
+ return IPSEC_INPUT_NEXT_PUNT;
+}
+
+always_inline u16
+ipsec_ip6_if_no_tunnel (vlib_node_runtime_t * node,
+ vlib_buffer_t * b,
+ const esp_header_t * esp, u16 offset)
+{
+ b->error = node->errors[IPSEC_IF_INPUT_ERROR_NO_TUNNEL];
+ b->punt_reason = ipsec_punt_reason[IPSEC_PUNT_IP6_NO_SUCH_TUNNEL];
+
+ vlib_buffer_advance (b, -offset);
+ return (IPSEC_INPUT_NEXT_PUNT);
+}
+
+always_inline uword
+ipsec_if_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame, int is_ip6)
{
ipsec_main_t *im = &ipsec_main;
vnet_main_t *vnm = im->vnet_main;
vnet_interface_main_t *vim = &vnm->interface_main;
- ipsec_proto_main_t *em = &ipsec_proto_main;
- u32 *from, *to_next = 0, next_index;
- u32 n_left_from, last_sw_if_index = ~0;
+
+ int is_trace = node->flags & VLIB_NODE_FLAG_TRACE;
u32 thread_index = vm->thread_index;
+
+ u32 n_left_from, *from;
+ u16 nexts[VLIB_FRAME_SIZE], *next;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b;
+
+ from = vlib_frame_vector_args (from_frame);
+ n_left_from = from_frame->n_vectors;
+
+ vlib_get_buffers (vm, from, bufs, n_left_from);
+ b = bufs;
+ next = nexts;
+
+ clib_memset_u16 (nexts, im->esp4_decrypt_next_index, n_left_from);
+
u64 n_bytes = 0, n_packets = 0;
- u8 icv_len;
- ipsec_tunnel_if_t *last_t = NULL;
- ipsec_sa_t *sa0;
+ u32 n_disabled = 0, n_no_tunnel = 0;
+
+ u32 last_sw_if_index = ~0;
+ u32 last_tunnel_id = ~0;
+ ipsec4_tunnel_key_t last_key4;
+ ipsec6_tunnel_key_t last_key6;
+
vlib_combined_counter_main_t *rx_counter;
vlib_combined_counter_main_t *drop_counter;
- u32 n_disabled = 0, n_no_tunnel = 0;
+
+ if (is_ip6)
+ clib_memset (&last_key6, 0xff, sizeof (last_key6));
+ else
+ last_key4.as_u64 = ~0;
rx_counter = vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX;
drop_counter = vim->combined_sw_if_counters + VNET_INTERFACE_COUNTER_DROP;
- from = vlib_frame_vector_args (from_frame);
- n_left_from = from_frame->n_vectors;
- next_index = node->cached_next_index;
-
- while (n_left_from > 0)
+ while (n_left_from >= 2)
{
- u32 n_left_to_next;
+ u32 sw_if_index0, sw_if_index1;
+ ip4_header_t *ip40, *ip41;
+ ip6_header_t *ip60, *ip61;
+ esp_header_t *esp0, *esp1;
+ u32 len0, len1;
+ u16 buf_adv0, buf_adv1;
+ u16 buf_rewind0, buf_rewind1;
+ u32 tid0, tid1;
+ ipsec_tunnel_if_t *t0, *t1;
+ ipsec4_tunnel_key_t key40, key41;
+ ipsec6_tunnel_key_t key60, key61;
+
+ if (n_left_from >= 4)
+ {
+ CLIB_PREFETCH (b[2], CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (b[2]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ CLIB_PREFETCH (b[3], CLIB_CACHE_LINE_BYTES, STORE);
+ CLIB_PREFETCH (b[3]->data, CLIB_CACHE_LINE_BYTES, LOAD);
+ }
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+ ip40 =
+ (ip4_header_t *) (b[0]->data + vnet_buffer (b[0])->l3_hdr_offset);
+ ip41 =
+ (ip4_header_t *) (b[1]->data + vnet_buffer (b[1])->l3_hdr_offset);
- while (n_left_from > 0 && n_left_to_next > 0)
+ if (is_ip6)
+ {
+ ip60 = (ip6_header_t *) ip40;
+ ip61 = (ip6_header_t *) ip41;
+ esp0 = (esp_header_t *) ((u8 *) ip60 + sizeof (ip6_header_t));
+ esp1 = (esp_header_t *) ((u8 *) ip61 + sizeof (ip6_header_t));
+ buf_adv0 = sizeof (ip6_header_t);
+ buf_adv1 = sizeof (ip6_header_t);
+ }
+ else
{
- u32 bi0, next0, sw_if_index0;
- vlib_buffer_t *b0;
- ip4_header_t *ip0;
- esp_header_t *esp0;
- uword *p;
- u32 len0;
+ /* NAT UDP port 4500 case, don't advance any more */
+ if (ip40->protocol == IP_PROTOCOL_UDP)
+ {
+ esp0 =
+ (esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40) +
+ sizeof (udp_header_t));
+ buf_adv0 = 0;
+ buf_rewind0 = ip4_header_bytes (ip40) + sizeof (udp_header_t);
+ }
+ else
+ {
+ esp0 = (esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40));
+ buf_rewind0 = buf_adv0 = ip4_header_bytes (ip40);
+ }
+ /* NAT UDP port 4500 case, don't advance any more */
+ if (ip41->protocol == IP_PROTOCOL_UDP)
+ {
+ esp1 =
+ (esp_header_t *) ((u8 *) ip41 + ip4_header_bytes (ip41) +
+ sizeof (udp_header_t));
+ buf_adv1 = 0;
+ buf_rewind1 = ip4_header_bytes (ip41) + sizeof (udp_header_t);
+ }
+ else
+ {
+ esp1 = (esp_header_t *) ((u8 *) ip41 + ip4_header_bytes (ip41));
+ buf_rewind1 = buf_adv1 = ip4_header_bytes (ip41);
+ }
+ }
- bi0 = to_next[0] = from[0];
- from += 1;
- n_left_from -= 1;
- to_next += 1;
- n_left_to_next -= 1;
- b0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (b0);
- esp0 = (esp_header_t *) ((u8 *) ip0 + ip4_header_bytes (ip0));
+ vlib_buffer_advance (b[0], buf_adv0);
+ vlib_buffer_advance (b[1], buf_adv1);
- next0 = IPSEC_INPUT_NEXT_DROP;
+ len0 = vlib_buffer_length_in_chain (vm, b[0]);
+ len1 = vlib_buffer_length_in_chain (vm, b[1]);
- u64 key = (u64) ip0->src_address.as_u32 << 32 | (u64) esp0->spi;
+ /* If the packet is too short to contain an SPI, then maybe
+ * it's a keep alive */
+ if (len0 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
- p = hash_get (im->ipsec_if_pool_index_by_key, key);
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto pkt1;
+ }
- len0 = vlib_buffer_length_in_chain (vm, b0);
+ if (is_ip6)
+ {
+ key60.remote_ip = ip60->src_address;
+ key60.spi = esp0->spi;
+
+ if (memcmp (&key60, &last_key6, sizeof (last_key6)) == 0)
+ {
+ tid0 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get_mem (im->ipsec6_if_pool_index_by_key, &key60);
+ if (p)
+ {
+ tid0 = p[0];
+ last_tunnel_id = tid0;
+ clib_memcpy_fast (&last_key6, &key60, sizeof (key60));
+ }
+ else
+ {
+ next[0] =
+ ipsec_ip6_if_no_tunnel (node, b[0], esp0, buf_adv0);
+ n_no_tunnel++;
+ goto pkt1;
+ }
+ }
+ }
+ else /* !is_ip6 */
+ {
+ key40.remote_ip = ip40->src_address;
+ key40.spi = esp0->spi;
+
+ if (key40.as_u64 == last_key4.as_u64)
+ {
+ tid0 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get (im->ipsec4_if_pool_index_by_key, key40.as_u64);
+ if (p)
+ {
+ tid0 = p[0];
+ last_tunnel_id = tid0;
+ last_key4.as_u64 = key40.as_u64;
+ }
+ else
+ {
+ next[0] =
+ ipsec_ip4_if_no_tunnel (node, b[0], esp0, ip40,
+ buf_rewind0);
+ n_no_tunnel++;
+ goto pkt1;
+ }
+ }
+ }
+
+ t0 = pool_elt_at_index (im->tunnel_interfaces, tid0);
+ vnet_buffer (b[0])->ipsec.sad_index = t0->input_sa_index;
+
+ if (PREDICT_TRUE (t0->hw_if_index != ~0))
+ {
+ sw_if_index0 = t0->sw_if_index;
+ vnet_buffer (b[0])->sw_if_index[VLIB_RX] = sw_if_index0;
+
+ if (PREDICT_FALSE (!(t0->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)))
+ {
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, sw_if_index0, 1, len0);
+ n_disabled++;
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_DISABLED];
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto pkt1;
+ }
+
+ if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
+ {
+ n_packets++;
+ n_bytes += len0;
+ }
+ else
+ {
+ if (n_packets)
+ {
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, last_sw_if_index,
+ n_packets, n_bytes);
+ }
+
+ last_sw_if_index = sw_if_index0;
+ n_packets = 1;
+ n_bytes = len0;
+ }
+ }
+
+ pkt1:
+
+ if (len1 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[1]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[1]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
+
+ next[1] = IPSEC_INPUT_NEXT_DROP;
+ goto trace1;
+ }
+
+ if (is_ip6)
+ {
+ key61.remote_ip = ip61->src_address;
+ key61.spi = esp1->spi;
+
+ if (memcmp (&key61, &last_key6, sizeof (last_key6)) == 0)
+ {
+ tid1 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get_mem (im->ipsec6_if_pool_index_by_key, &key61);
+ if (p)
+ {
+ tid1 = p[0];
+ last_tunnel_id = tid1;
+ clib_memcpy_fast (&last_key6, &key61, sizeof (key61));
+ }
+ else
+ {
+ next[1] =
+ ipsec_ip6_if_no_tunnel (node, b[1], esp1, buf_adv1);
+ n_no_tunnel++;
+ goto trace1;
+ }
+ }
+ }
+ else /* !is_ip6 */
+ {
+ key41.remote_ip = ip41->src_address;
+ key41.spi = esp1->spi;
- if (p)
+ if (key41.as_u64 == last_key4.as_u64)
{
- ipsec_tunnel_if_t *t;
- t = pool_elt_at_index (im->tunnel_interfaces, p[0]);
- vnet_buffer (b0)->ipsec.sad_index = t->input_sa_index;
- if (t->hw_if_index != ~0)
+ tid1 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get (im->ipsec4_if_pool_index_by_key, key41.as_u64);
+ if (p)
{
- vnet_hw_interface_t *hi;
-
- vnet_buffer (b0)->ipsec.flags = 0;
- hi = vnet_get_hw_interface (vnm, t->hw_if_index);
- sw_if_index0 = hi->sw_if_index;
- vnet_buffer (b0)->sw_if_index[VLIB_RX] = sw_if_index0;
-
- if (PREDICT_FALSE
- (!(hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)))
- {
- vlib_increment_combined_counter
- (drop_counter, thread_index, sw_if_index0, 1, len0);
- b0->error = node->errors[IPSEC_IF_INPUT_ERROR_DISABLED];
- n_disabled++;
- goto trace;
- }
-
- if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
- {
- n_packets++;
- n_bytes += len0;
- }
- else
- {
- sa0 = pool_elt_at_index (im->sad, t->input_sa_index);
- icv_len =
- em->ipsec_proto_main_integ_algs[sa0->
- integ_alg].trunc_size;
-
- /* length = packet length - ESP/tunnel overhead */
- n_bytes -= n_packets * (sizeof (ip4_header_t) +
- sizeof (esp_header_t) +
- sizeof (esp_footer_t) +
- 16 /* aes-cbc IV */ + icv_len);
-
- if (last_t)
- {
- vlib_increment_combined_counter
- (rx_counter, thread_index, sw_if_index0,
- n_packets, n_bytes);
- }
-
- last_sw_if_index = sw_if_index0;
- last_t = t;
- n_packets = 1;
- n_bytes = len0;
- }
+ tid1 = p[0];
+ last_tunnel_id = tid1;
+ last_key4.as_u64 = key41.as_u64;
}
else
{
- vnet_buffer (b0)->ipsec.flags = IPSEC_FLAG_IPSEC_GRE_TUNNEL;
+ next[1] =
+ ipsec_ip4_if_no_tunnel (node, b[1], esp1, ip41,
+ buf_rewind1);
+ n_no_tunnel++;
+ goto trace1;
}
+ }
+ }
+
+ t1 = pool_elt_at_index (im->tunnel_interfaces, tid1);
+ vnet_buffer (b[1])->ipsec.sad_index = t1->input_sa_index;
+
+ if (PREDICT_TRUE (t1->hw_if_index != ~0))
+ {
+ sw_if_index1 = t1->sw_if_index;
+ vnet_buffer (b[1])->sw_if_index[VLIB_RX] = sw_if_index1;
- vlib_buffer_advance (b0, ip4_header_bytes (ip0));
- next0 = im->esp4_decrypt_next_index;
+ if (PREDICT_FALSE (!(t1->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)))
+ {
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, sw_if_index1, 1, len1);
+ n_disabled++;
+ b[1]->error = node->errors[IPSEC_IF_INPUT_ERROR_DISABLED];
+ next[1] = IPSEC_INPUT_NEXT_DROP;
+ goto trace1;
+ }
+
+ if (PREDICT_TRUE (sw_if_index1 == last_sw_if_index))
+ {
+ n_packets++;
+ n_bytes += len1;
}
else
{
- b0->error = node->errors[IPSEC_IF_INPUT_ERROR_NO_TUNNEL];
- n_no_tunnel++;
+ if (n_packets)
+ {
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, last_sw_if_index,
+ n_packets, n_bytes);
+ }
+
+ last_sw_if_index = sw_if_index1;
+ n_packets = 1;
+ n_bytes = len1;
}
+ }
- trace:
- if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+ trace1:
+ if (PREDICT_FALSE (is_trace))
+ {
+ if (b[0]->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ipsec_if_input_trace_t *tr =
+ vlib_add_trace (vm, node, b[0], sizeof (*tr));
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key60, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key40, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
+ tr->seq =
+ len0 >=
+ sizeof (*esp0) ? clib_host_to_net_u32 (esp0->seq) : ~0;
+ }
+ if (b[1]->flags & VLIB_BUFFER_IS_TRACED)
{
ipsec_if_input_trace_t *tr =
- vlib_add_trace (vm, node, b0, sizeof (*tr));
- tr->spi = clib_host_to_net_u32 (esp0->spi);
- tr->seq = clib_host_to_net_u32 (esp0->seq);
+ vlib_add_trace (vm, node, b[1], sizeof (*tr));
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key61, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key41, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
+ tr->seq =
+ len1 >=
+ sizeof (*esp1) ? clib_host_to_net_u32 (esp1->seq) : ~0;
}
+ }
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
- n_left_to_next, bi0, next0);
+ /* next */
+ b += 2;
+ next += 2;
+ n_left_from -= 2;
+ }
+ while (n_left_from > 0)
+ {
+ u32 sw_if_index0;
+ ip4_header_t *ip40;
+ ip6_header_t *ip60;
+ esp_header_t *esp0;
+ u32 len0;
+ u16 buf_adv0, buf_rewind0;
+ u32 tid0;
+ ipsec_tunnel_if_t *t0;
+ ipsec4_tunnel_key_t key40;
+ ipsec6_tunnel_key_t key60;
+
+ ip40 =
+ (ip4_header_t *) (b[0]->data + vnet_buffer (b[0])->l3_hdr_offset);
+
+ if (is_ip6)
+ {
+ ip60 = (ip6_header_t *) ip40;
+ esp0 = (esp_header_t *) ((u8 *) ip60 + sizeof (ip6_header_t));
+ buf_adv0 = sizeof (ip6_header_t);
}
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ else
+ {
+ /* NAT UDP port 4500 case, don't advance any more */
+ if (ip40->protocol == IP_PROTOCOL_UDP)
+ {
+ esp0 =
+ (esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40) +
+ sizeof (udp_header_t));
+ buf_adv0 = 0;
+ buf_rewind0 = ip4_header_bytes (ip40) + sizeof (udp_header_t);
+ }
+ else
+ {
+ esp0 = (esp_header_t *) ((u8 *) ip40 + ip4_header_bytes (ip40));
+ buf_rewind0 = buf_adv0 = ip4_header_bytes (ip40);
+ }
+ }
+
+ /* stats for the tunnel include all the data after the IP header
+ just like a norml IP-IP tunnel */
+ vlib_buffer_advance (b[0], buf_adv0);
+ len0 = vlib_buffer_length_in_chain (vm, b[0]);
+
+ if (len0 < sizeof (esp_header_t))
+ {
+ if (esp0->spi_bytes[0] == 0xff)
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_NAT_KEEPALIVE];
+ else
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_TOO_SHORT];
+
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+
+ if (is_ip6)
+ {
+ key60.remote_ip = ip60->src_address;
+ key60.spi = esp0->spi;
+
+ if (memcmp (&key60, &last_key6, sizeof (last_key6)) == 0)
+ {
+ tid0 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get_mem (im->ipsec6_if_pool_index_by_key, &key60);
+ if (p)
+ {
+ tid0 = p[0];
+ last_tunnel_id = tid0;
+ clib_memcpy_fast (&last_key6, &key60, sizeof (key60));
+ }
+ else
+ {
+ next[0] =
+ ipsec_ip6_if_no_tunnel (node, b[0], esp0, buf_adv0);
+ n_no_tunnel++;
+ goto trace00;
+ }
+ }
+ }
+ else /* !is_ip6 */
+ {
+ key40.remote_ip = ip40->src_address;
+ key40.spi = esp0->spi;
+
+ if (key40.as_u64 == last_key4.as_u64)
+ {
+ tid0 = last_tunnel_id;
+ }
+ else
+ {
+ uword *p =
+ hash_get (im->ipsec4_if_pool_index_by_key, key40.as_u64);
+ if (p)
+ {
+ tid0 = p[0];
+ last_tunnel_id = tid0;
+ last_key4.as_u64 = key40.as_u64;
+ }
+ else
+ {
+ next[0] =
+ ipsec_ip4_if_no_tunnel (node, b[0], esp0, ip40,
+ buf_rewind0);
+ n_no_tunnel++;
+ goto trace00;
+ }
+ }
+ }
+
+ t0 = pool_elt_at_index (im->tunnel_interfaces, tid0);
+ vnet_buffer (b[0])->ipsec.sad_index = t0->input_sa_index;
+
+ if (PREDICT_TRUE (t0->hw_if_index != ~0))
+ {
+ sw_if_index0 = t0->sw_if_index;
+ vnet_buffer (b[0])->sw_if_index[VLIB_RX] = sw_if_index0;
+
+ if (PREDICT_FALSE (!(t0->flags & VNET_HW_INTERFACE_FLAG_LINK_UP)))
+ {
+ vlib_increment_combined_counter
+ (drop_counter, thread_index, sw_if_index0, 1, len0);
+ n_disabled++;
+ b[0]->error = node->errors[IPSEC_IF_INPUT_ERROR_DISABLED];
+ next[0] = IPSEC_INPUT_NEXT_DROP;
+ goto trace00;
+ }
+
+ if (PREDICT_TRUE (sw_if_index0 == last_sw_if_index))
+ {
+ n_packets++;
+ n_bytes += len0;
+ }
+ else
+ {
+ if (n_packets)
+ {
+ vlib_increment_combined_counter
+ (rx_counter, thread_index, last_sw_if_index,
+ n_packets, n_bytes);
+ }
+
+ last_sw_if_index = sw_if_index0;
+ n_packets = 1;
+ n_bytes = len0;
+ }
+ }
+
+ trace00:
+ if (PREDICT_FALSE (is_trace))
+ {
+ if (b[0]->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ipsec_if_input_trace_t *tr =
+ vlib_add_trace (vm, node, b[0], sizeof (*tr));
+ if (is_ip6)
+ clib_memcpy (&tr->key6, &key60, sizeof (tr->key6));
+ else
+ clib_memcpy (&tr->key4, &key40, sizeof (tr->key4));
+ tr->is_ip6 = is_ip6;
+ tr->seq =
+ len0 >=
+ sizeof (*esp0) ? clib_host_to_net_u32 (esp0->seq) : ~0;
+ }
+ }
+
+ /* next */
+ b += 1;
+ next += 1;
+ n_left_from -= 1;
}
- if (last_t)
+ if (n_packets)
{
- sa0 = pool_elt_at_index (im->sad, last_t->input_sa_index);
- icv_len = em->ipsec_proto_main_integ_algs[sa0->integ_alg].trunc_size;
-
- n_bytes -= n_packets * (sizeof (ip4_header_t) + sizeof (esp_header_t) +
- sizeof (esp_footer_t) + 16 /* aes-cbc IV */ +
- icv_len);
vlib_increment_combined_counter (rx_counter,
thread_index,
last_sw_if_index, n_packets, n_bytes);
}
- vlib_node_increment_counter (vm, ipsec_if_input_node.index,
+ vlib_node_increment_counter (vm, node->node_index,
IPSEC_IF_INPUT_ERROR_RX,
- from_frame->n_vectors - n_disabled);
+ from_frame->n_vectors - (n_disabled +
+ n_no_tunnel));
- vlib_node_increment_counter (vm, ipsec_if_input_node.index,
- IPSEC_IF_INPUT_ERROR_DISABLED, n_disabled);
- vlib_node_increment_counter (vm, ipsec_if_input_node.index,
- IPSEC_IF_INPUT_ERROR_DISABLED, n_no_tunnel);
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, from_frame->n_vectors);
return from_frame->n_vectors;
}
+VLIB_NODE_FN (ipsec4_if_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ return ipsec_if_input_inline (vm, node, from_frame, 0 /* is_ip6 */ );
+}
+
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ipsec_if_input_node) = {
- .name = "ipsec-if-input",
+VLIB_REGISTER_NODE (ipsec4_if_input_node) = {
+ .name = "ipsec4-if-input",
.vector_size = sizeof (u32),
.format_trace = format_ipsec_if_input_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
.n_errors = ARRAY_LEN(ipsec_if_input_error_strings),
.error_strings = ipsec_if_input_error_strings,
-
.sibling_of = "ipsec4-input-feature",
};
/* *INDENT-ON* */
+VLIB_NODE_FN (ipsec6_if_input_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * from_frame)
+{
+ return ipsec_if_input_inline (vm, node, from_frame, 1 /* is_ip6 */ );
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ipsec6_if_input_node) = {
+ .name = "ipsec6-if-input",
+ .vector_size = sizeof (u32),
+ .format_trace = format_ipsec_if_input_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+ .n_errors = ARRAY_LEN(ipsec_if_input_error_strings),
+ .error_strings = ipsec_if_input_error_strings,
+ .sibling_of = "ipsec6-input-feature",
+};
+/* *INDENT-ON* */
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff