diff options
Diffstat (limited to 'src/vnet/ipsec/esp_decrypt.c')
| -rw-r--r-- | src/vnet/ipsec/esp_decrypt.c | 85 |
1 files changed, 42 insertions, 43 deletions
diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c index bbd54cfd7b5..94f3204b51f 100644 --- a/src/vnet/ipsec/esp_decrypt.c +++ b/src/vnet/ipsec/esp_decrypt.c @@ -494,18 +494,16 @@ esp_decrypt_chain_crypto (vlib_main_t * vm, ipsec_per_thread_data_t * ptd, return total_len; } -static_always_inline void -esp_decrypt_prepare_sync_op (vlib_main_t * vm, vlib_node_runtime_t * node, - ipsec_per_thread_data_t * ptd, - vnet_crypto_op_t *** crypto_ops, - vnet_crypto_op_t *** integ_ops, - vnet_crypto_op_t * op, - ipsec_sa_t * sa0, u8 * payload, - u16 len, u8 icv_sz, u8 iv_sz, - esp_decrypt_packet_data_t * pd, - esp_decrypt_packet_data2_t * pd2, - vlib_buffer_t * b, u16 * next, u32 index) +static_always_inline esp_decrypt_error_t +esp_decrypt_prepare_sync_op (vlib_main_t *vm, ipsec_per_thread_data_t *ptd, + ipsec_sa_t *sa0, u8 *payload, u16 len, u8 icv_sz, + u8 iv_sz, esp_decrypt_packet_data_t *pd, + esp_decrypt_packet_data2_t *pd2, vlib_buffer_t *b, + u32 index) { + vnet_crypto_op_t **crypto_ops; + vnet_crypto_op_t **integ_ops; + vnet_crypto_op_t _op, *op = &_op; const u8 esp_sz = sizeof (esp_header_t); if (PREDICT_TRUE (sa0->integ_op_id != VNET_CRYPTO_OP_NONE)) @@ -522,6 +520,8 @@ esp_decrypt_prepare_sync_op (vlib_main_t * vm, vlib_node_runtime_t * node, if (pd->is_chain) { /* buffer is chained */ + integ_ops = &ptd->chained_integ_ops; + op->len = pd->current_length; /* special case when ICV is splitted and needs to be reassembled @@ -547,8 +547,7 @@ esp_decrypt_prepare_sync_op (vlib_main_t * vm, vlib_node_runtime_t * node, { /* we now have a single buffer of crypto data, adjust * the length (second buffer contains only ICV) */ - *integ_ops = &ptd->integ_ops; - *crypto_ops = &ptd->crypto_ops; + integ_ops = &ptd->integ_ops; len = b->current_length; goto out; } @@ -562,18 +561,16 @@ esp_decrypt_prepare_sync_op (vlib_main_t * vm, vlib_node_runtime_t * node, if (esp_decrypt_chain_integ (vm, ptd, pd, pd2, sa0, b, icv_sz, payload, pd->current_length, &op->digest, &op->n_chunks, 0) < 0) - { - esp_decrypt_set_next_index ( - b, node, vm->thread_index, ESP_DECRYPT_ERROR_NO_BUFFERS, 0, - next, ESP_DECRYPT_NEXT_DROP, pd->sa_index); - return; - } + return ESP_DECRYPT_ERROR_NO_BUFFERS; } else - esp_insert_esn (vm, sa0, pd, pd2, &op->len, &op->digest, &len, b, - payload); + { + integ_ops = &ptd->integ_ops; + esp_insert_esn (vm, sa0, pd, pd2, &op->len, &op->digest, &len, b, + payload); + } out: - vec_add_aligned (*(integ_ops[0]), op, 1, CLIB_CACHE_LINE_BYTES); + vec_add_aligned (*integ_ops, op, 1, CLIB_CACHE_LINE_BYTES); } payload += esp_sz; @@ -627,20 +624,26 @@ esp_decrypt_prepare_sync_op (vlib_main_t * vm, vlib_node_runtime_t * node, esp_decrypt_chain_crypto (vm, ptd, pd, pd2, sa0, b, icv_sz, payload, len - pd->iv_sz + pd->icv_sz, &op->tag, &op->n_chunks); + crypto_ops = &ptd->chained_crypto_ops; + } + else + { + crypto_ops = &ptd->crypto_ops; } - vec_add_aligned (*(crypto_ops[0]), op, 1, CLIB_CACHE_LINE_BYTES); + vec_add_aligned (*crypto_ops, op, 1, CLIB_CACHE_LINE_BYTES); } + + return ESP_DECRYPT_ERROR_RX_PKTS; } static_always_inline esp_decrypt_error_t -esp_decrypt_prepare_async_frame (vlib_main_t *vm, vlib_node_runtime_t *node, - ipsec_per_thread_data_t *ptd, +esp_decrypt_prepare_async_frame (vlib_main_t *vm, ipsec_per_thread_data_t *ptd, vnet_crypto_async_frame_t *f, ipsec_sa_t *sa0, u8 *payload, u16 len, u8 icv_sz, u8 iv_sz, esp_decrypt_packet_data_t *pd, esp_decrypt_packet_data2_t *pd2, u32 bi, - vlib_buffer_t *b, u16 *next, u16 async_next) + vlib_buffer_t *b, u16 async_next) { const u8 esp_sz = sizeof (esp_header_t); esp_decrypt_packet_data_t *async_pd = &(esp_post_data (b))->decrypt_data; @@ -1101,9 +1104,6 @@ esp_decrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node, const u8 esp_sz = sizeof (esp_header_t); ipsec_sa_t *sa0 = 0; bool anti_replay_result; - vnet_crypto_op_t _op, *op = &_op; - vnet_crypto_op_t **crypto_ops; - vnet_crypto_op_t **integ_ops; int is_async = im->async_mode; vnet_crypto_async_op_id_t async_op = ~0; vnet_crypto_async_frame_t *async_frames[VNET_CRYPTO_ASYNC_OP_N_IDS]; @@ -1205,14 +1205,6 @@ esp_decrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node, /* find last buffer in the chain */ while (pd2->lb->flags & VLIB_BUFFER_NEXT_PRESENT) pd2->lb = vlib_get_buffer (vm, pd2->lb->next_buffer); - - crypto_ops = &ptd->chained_crypto_ops; - integ_ops = &ptd->chained_integ_ops; - } - else - { - crypto_ops = &ptd->crypto_ops; - integ_ops = &ptd->integ_ops; } pd->current_length = b[0]->current_length; @@ -1276,9 +1268,8 @@ esp_decrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node, } err = esp_decrypt_prepare_async_frame ( - vm, node, ptd, async_frames[async_op], sa0, payload, len, - cpd.icv_sz, cpd.iv_sz, pd, pd2, from[b - bufs], b[0], async_next, - async_next_node); + vm, ptd, async_frames[async_op], sa0, payload, len, cpd.icv_sz, + cpd.iv_sz, pd, pd2, from[b - bufs], b[0], async_next_node); if (ESP_DECRYPT_ERROR_RX_PKTS != err) { esp_decrypt_set_next_index ( @@ -1287,9 +1278,17 @@ esp_decrypt_inline (vlib_main_t *vm, vlib_node_runtime_t *node, } } else - esp_decrypt_prepare_sync_op ( - vm, node, ptd, &crypto_ops, &integ_ops, op, sa0, payload, len, - cpd.icv_sz, cpd.iv_sz, pd, pd2, b[0], sync_next, n_sync); + { + err = esp_decrypt_prepare_sync_op (vm, ptd, sa0, payload, len, + cpd.icv_sz, cpd.iv_sz, pd, pd2, + b[0], n_sync); + if (err != ESP_DECRYPT_ERROR_RX_PKTS) + { + esp_decrypt_set_next_index (b[0], node, thread_index, err, 0, + sync_next, ESP_DECRYPT_NEXT_DROP, + current_sa_index); + } + } /* next */ next: if (ESP_DECRYPT_ERROR_RX_PKTS != err) |