diff options
| author |   Filip Tehlar <ftehlar@cisco.com> | 2020-02-13 22:34:05 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2020-02-18 22:54:18 +0000 |
| commit | 2fc4091319bdbbac25ce1132cfb73b5077426b75 (patch) | |
| tree | e7a380421a39d3d319421fd9d9f0ebd20b86c6c9 /src | |
| parent | 3fccd0278c38cb3fb07fc51a3f1686aef1ebb542 (diff) | |
crypto: add chained buffer support in ipsecmb (AES-GCM)
Type: feature
Change-Id: Ia65caf38988c7e860e6d028f93659916825ef16b
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/plugins/crypto_ipsecmb/ipsecmb.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/plugins/crypto_ipsecmb/ipsecmb.c b/src/plugins/crypto_ipsecmb/ipsecmb.c index a9edd98e87f..11e52322775 100644 --- a/src/plugins/crypto_ipsecmb/ipsecmb.c +++ b/src/plugins/crypto_ipsecmb/ipsecmb.c @@ -263,6 +263,41 @@ foreach_ipsecmb_cbc_cipher_op; #define _(a, b) \ static_always_inline u32 \ +ipsecmb_ops_gcm_cipher_enc_##a##_chained (vlib_main_t * vm, \ + vnet_crypto_op_t * ops[], vnet_crypto_op_chunk_t *chunks, u32 n_ops) \ +{ \ + ipsecmb_main_t *imbm = &ipsecmb_main; \ + ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data, \ + vm->thread_index); \ + MB_MGR *m = ptd->mgr; \ + vnet_crypto_op_chunk_t *chp; \ + u32 i, j; \ + \ + for (i = 0; i < n_ops; i++) \ + { \ + struct gcm_key_data *kd; \ + struct gcm_context_data ctx; \ + vnet_crypto_op_t *op = ops[i]; \ + \ + kd = (struct gcm_key_data *) imbm->key_data[op->key_index]; \ + ASSERT (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS); \ + IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len); \ + chp = chunks + op->chunk_index; \ + for (j = 0; j < op->n_chunks; j++) \ + { \ + IMB_AES##b##_GCM_ENC_UPDATE (m, kd, &ctx, chp->dst, chp->src, \ + chp->len); \ + chp += 1; \ + } \ + IMB_AES##b##_GCM_ENC_FINALIZE(m, kd, &ctx, op->tag, op->tag_len); \ + \ + op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; \ + } \ + \ + return n_ops; \ +} \ + \ +static_always_inline u32 \ ipsecmb_ops_gcm_cipher_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \ u32 n_ops) \ { \ @@ -289,6 +324,48 @@ ipsecmb_ops_gcm_cipher_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \ } \ \ static_always_inline u32 \ +ipsecmb_ops_gcm_cipher_dec_##a##_chained (vlib_main_t * vm, \ + vnet_crypto_op_t * ops[], vnet_crypto_op_chunk_t *chunks, u32 n_ops) \ +{ \ + ipsecmb_main_t *imbm = &ipsecmb_main; \ + ipsecmb_per_thread_data_t *ptd = vec_elt_at_index (imbm->per_thread_data, \ + vm->thread_index); \ + MB_MGR *m = ptd->mgr; \ + vnet_crypto_op_chunk_t *chp; \ + u32 i, j, n_failed = 0; \ + \ + for (i = 0; i < n_ops; i++) \ + { \ + struct gcm_key_data *kd; \ + struct gcm_context_data ctx; \ + vnet_crypto_op_t *op = ops[i]; \ + u8 scratch[64]; \ + \ + kd = (struct gcm_key_data *) imbm->key_data[op->key_index]; \ + ASSERT (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS); \ + IMB_AES##b##_GCM_INIT(m, kd, &ctx, op->iv, op->aad, op->aad_len); \ + chp = chunks + op->chunk_index; \ + for (j = 0; j < op->n_chunks; j++) \ + { \ + IMB_AES##b##_GCM_DEC_UPDATE (m, kd, &ctx, chp->dst, chp->src, \ + chp->len); \ + chp += 1; \ + } \ + IMB_AES##b##_GCM_DEC_FINALIZE(m, kd, &ctx, scratch, op->tag_len); \ + \ + if ((memcmp (op->tag, scratch, op->tag_len))) \ + { \ + op->status = VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC; \ + n_failed++; \ + } \ + else \ + op->status = VNET_CRYPTO_OP_STATUS_COMPLETED; \ + } \ + \ + return n_ops - n_failed; \ +} \ + \ +static_always_inline u32 \ ipsecmb_ops_gcm_cipher_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \ u32 n_ops) \ { \ @@ -493,6 +570,12 @@ crypto_ipsecmb_init (vlib_main_t * vm) ipsecmb_ops_gcm_cipher_enc_##a); \ vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \ ipsecmb_ops_gcm_cipher_dec_##a); \ + vnet_crypto_register_chained_ops_handler \ + (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \ + ipsecmb_ops_gcm_cipher_enc_##a##_chained); \ + vnet_crypto_register_chained_ops_handler \ + (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \ + ipsecmb_ops_gcm_cipher_dec_##a##_chained); \ ad = imbm->alg_data + VNET_CRYPTO_ALG_##a; \ ad->data_size = sizeof (struct gcm_key_data); \ ad->aes_gcm_pre = m->gcm##b##_pre; \ |