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authorFilip Tehlar <ftehlar@cisco.com>2020-02-04 09:36:04 +0000
committerDamjan Marion <dmarion@me.com>2020-02-11 23:07:38 +0000
commitefcad1a9d22c4a664f3004cafe09d9c3a68e1620 (patch)
tree5d0668c307083f096f6034d5ae8a608078640d18
parent16d974ec59776f0103ad62d0d04dc57989eef7ed (diff)
ipsec: add support for chained buffers
Type: feature Change-Id: Ie072a7c2bbb1e4a77f7001754f01897efd30fc53 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
Diffstat
-rw-r--r--src/plugins/crypto_openssl/main.c191
-rw-r--r--src/plugins/unittest/crypto/aes_cbc.c15
-rw-r--r--src/plugins/unittest/crypto/aes_gcm.c20
-rw-r--r--src/plugins/unittest/crypto/crypto.h8
-rw-r--r--src/plugins/unittest/crypto/rfc2202_hmac_md5.c12
-rw-r--r--src/plugins/unittest/crypto/rfc2202_hmac_sha1.c15
-rw-r--r--src/plugins/unittest/crypto/rfc4231.c14
-rw-r--r--src/plugins/unittest/crypto_test.c427
-rw-r--r--src/vnet/crypto/cli.c30
-rw-r--r--src/vnet/crypto/crypto.c183
-rw-r--r--src/vnet/crypto/crypto.h95
-rw-r--r--src/vnet/crypto/format.c5
-rw-r--r--src/vnet/ipsec/esp_decrypt.c444
-rw-r--r--src/vnet/ipsec/esp_encrypt.c183
-rw-r--r--src/vnet/ipsec/ipsec.h4
-rw-r--r--test/template_ipsec.py58
-rw-r--r--test/test_ipsec_esp.py23
17 files changed, 1376 insertions, 351 deletions
diff --git a/src/plugins/crypto_openssl/main.c b/src/plugins/crypto_openssl/main.c
index 7362d6bd16e..7775958f9cd 100644
--- a/src/plugins/crypto_openssl/main.c
+++ b/src/plugins/crypto_openssl/main.c
@@ -58,13 +58,17 @@ static openssl_per_thread_data_t *per_thread_data = 0;
_(SHA512, EVP_sha512)
static_always_inline u32
-openssl_ops_enc_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
+openssl_ops_enc_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_CIPHER * cipher)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx;
- u32 i;
+ vnet_crypto_op_chunk_t *chp;
+ u32 i, j, curr_len = 0;
+ u8 out_buf[VLIB_BUFFER_DEFAULT_DATA_SIZE * 5];
+
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
@@ -81,22 +85,57 @@ openssl_ops_enc_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
RAND_bytes (op->iv, iv_len);
EVP_EncryptInit_ex (ctx, cipher, NULL, key->data, op->iv);
- EVP_EncryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
- if (out_len < op->len)
- EVP_EncryptFinal_ex (ctx, op->dst + out_len, &out_len);
+
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ EVP_CIPHER_CTX_set_padding (ctx, 0);
+
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ chp = chunks + op->chunk_index;
+ u32 offset = 0;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ EVP_EncryptUpdate (ctx, out_buf + offset, &out_len, chp->src,
+ chp->len);
+ curr_len = chp->len;
+ offset += out_len;
+ chp += 1;
+ }
+ if (out_len < curr_len)
+ EVP_EncryptFinal_ex (ctx, out_buf + offset, &out_len);
+
+ offset = 0;
+ chp = chunks + op->chunk_index;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ clib_memcpy_fast (chp->dst, out_buf + offset, chp->len);
+ offset += chp->len;
+ chp += 1;
+ }
+ }
+ else
+ {
+ EVP_EncryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
+ if (out_len < op->len)
+ EVP_EncryptFinal_ex (ctx, op->dst + out_len, &out_len);
+ }
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;
}
static_always_inline u32
-openssl_ops_dec_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
+openssl_ops_dec_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_CIPHER * cipher)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx;
- u32 i;
+ vnet_crypto_op_chunk_t *chp;
+ u32 i, j, curr_len = 0;
+ u8 out_buf[VLIB_BUFFER_DEFAULT_DATA_SIZE * 5];
+
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
@@ -104,22 +143,55 @@ openssl_ops_dec_cbc (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
int out_len;
EVP_DecryptInit_ex (ctx, cipher, NULL, key->data, op->iv);
- EVP_DecryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
- if (out_len < op->len)
- EVP_DecryptFinal_ex (ctx, op->dst + out_len, &out_len);
+
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ EVP_CIPHER_CTX_set_padding (ctx, 0);
+
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ chp = chunks + op->chunk_index;
+ u32 offset = 0;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ EVP_DecryptUpdate (ctx, out_buf + offset, &out_len, chp->src,
+ chp->len);
+ curr_len = chp->len;
+ offset += out_len;
+ chp += 1;
+ }
+ if (out_len < curr_len)
+ EVP_DecryptFinal_ex (ctx, out_buf + offset, &out_len);
+
+ offset = 0;
+ chp = chunks + op->chunk_index;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ clib_memcpy_fast (chp->dst, out_buf + offset, chp->len);
+ offset += chp->len;
+ chp += 1;
+ }
+ }
+ else
+ {
+ EVP_DecryptUpdate (ctx, op->dst, &out_len, op->src, op->len);
+ if (out_len < op->len)
+ EVP_DecryptFinal_ex (ctx, op->dst + out_len, &out_len);
+ }
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
}
return n_ops;
}
static_always_inline u32
-openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
+openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_CIPHER * cipher)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx;
- u32 i;
+ vnet_crypto_op_chunk_t *chp;
+ u32 i, j;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
@@ -134,7 +206,17 @@ openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
EVP_EncryptInit_ex (ctx, 0, 0, key->data, op->iv);
if (op->aad_len)
EVP_EncryptUpdate (ctx, NULL, &len, op->aad, op->aad_len);
- EVP_EncryptUpdate (ctx, op->dst, &len, op->src, op->len);
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ chp = chunks + op->chunk_index;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ EVP_EncryptUpdate (ctx, chp->dst, &len, chp->src, chp->len);
+ chp += 1;
+ }
+ }
+ else
+ EVP_EncryptUpdate (ctx, op->dst, &len, op->src, op->len);
EVP_EncryptFinal_ex (ctx, op->dst + len, &len);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_GET_TAG, op->tag_len, op->tag);
op->status = VNET_CRYPTO_OP_STATUS_COMPLETED;
@@ -143,13 +225,15 @@ openssl_ops_enc_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
}
static_always_inline u32
-openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
+openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_CIPHER * cipher)
{
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
EVP_CIPHER_CTX *ctx = ptd->evp_cipher_ctx;
- u32 i, n_fail = 0;
+ vnet_crypto_op_chunk_t *chp;
+ u32 i, j, n_fail = 0;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
@@ -161,7 +245,17 @@ openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
EVP_DecryptInit_ex (ctx, 0, 0, key->data, op->iv);
if (op->aad_len)
EVP_DecryptUpdate (ctx, 0, &len, op->aad, op->aad_len);
- EVP_DecryptUpdate (ctx, op->dst, &len, op->src, op->len);
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ chp = chunks + op->chunk_index;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ EVP_DecryptUpdate (ctx, chp->dst, &len, chp->src, chp->len);
+ chp += 1;
+ }
+ }
+ else
+ EVP_DecryptUpdate (ctx, op->dst, &len, op->src, op->len);
EVP_CIPHER_CTX_ctrl (ctx, EVP_CTRL_GCM_SET_TAG, op->tag_len, op->tag);
if (EVP_DecryptFinal_ex (ctx, op->dst + len, &len) > 0)
@@ -176,14 +270,16 @@ openssl_ops_dec_gcm (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
}
static_always_inline u32
-openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
+openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops,
const EVP_MD * md)
{
u8 buffer[64];
openssl_per_thread_data_t *ptd = vec_elt_at_index (per_thread_data,
vm->thread_index);
HMAC_CTX *ctx = ptd->hmac_ctx;
- u32 i, n_fail = 0;
+ vnet_crypto_op_chunk_t *chp;
+ u32 i, j, n_fail = 0;
for (i = 0; i < n_ops; i++)
{
vnet_crypto_op_t *op = ops[i];
@@ -192,7 +288,17 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
size_t sz = op->digest_len ? op->digest_len : EVP_MD_size (md);
HMAC_Init_ex (ctx, key->data, vec_len (key->data), md, NULL);
- HMAC_Update (ctx, op->src, op->len);
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ chp = chunks + op->chunk_index;
+ for (j = 0; j < op->n_chunks; j++)
+ {
+ HMAC_Update (ctx, chp->src, chp->len);
+ chp += 1;
+ }
+ }
+ else
+ HMAC_Update (ctx, op->src, op->len);
HMAC_Final (ctx, buffer, &out_len);
if (op->flags & VNET_CRYPTO_OP_FLAG_HMAC_CHECK)
@@ -211,14 +317,24 @@ openssl_ops_hmac (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops,
return n_ops - n_fail;
}
-#define _(m, a, b) \
-static u32 \
-openssl_ops_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \
-{ return openssl_ops_enc_##m (vm, ops, n_ops, b ()); } \
-\
-u32 \
-openssl_ops_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \
-{ return openssl_ops_dec_##m (vm, ops, n_ops, b ()); }
+#define _(m, a, b) \
+static u32 \
+openssl_ops_enc_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \
+{ return openssl_ops_enc_##m (vm, ops, 0, n_ops, b ()); } \
+ \
+u32 \
+openssl_ops_dec_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \
+{ return openssl_ops_dec_##m (vm, ops, 0, n_ops, b ()); } \
+ \
+static u32 \
+openssl_ops_enc_chained_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \
+ vnet_crypto_op_chunk_t *chunks, u32 n_ops) \
+{ return openssl_ops_enc_##m (vm, ops, chunks, n_ops, b ()); } \
+ \
+static u32 \
+openssl_ops_dec_chained_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \
+ vnet_crypto_op_chunk_t *chunks, u32 n_ops) \
+{ return openssl_ops_dec_##m (vm, ops, chunks, n_ops, b ()); }
foreach_openssl_evp_op;
#undef _
@@ -226,7 +342,11 @@ foreach_openssl_evp_op;
#define _(a, b) \
static u32 \
openssl_ops_hmac_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], u32 n_ops) \
-{ return openssl_ops_hmac (vm, ops, n_ops, b ()); } \
+{ return openssl_ops_hmac (vm, ops, 0, n_ops, b ()); } \
+static u32 \
+openssl_ops_hmac_chained_##a (vlib_main_t * vm, vnet_crypto_op_t * ops[], \
+ vnet_crypto_op_chunk_t *chunks, u32 n_ops) \
+{ return openssl_ops_hmac (vm, ops, chunks, n_ops, b ()); } \
foreach_openssl_hmac_op;
#undef _
@@ -244,17 +364,20 @@ crypto_openssl_init (vlib_main_t * vm)
u32 eidx = vnet_crypto_register_engine (vm, "openssl", 50, "OpenSSL");
#define _(m, a, b) \
- vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \
- openssl_ops_enc_##a); \
- vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \
- openssl_ops_dec_##a);
+ vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_ENC, \
+ openssl_ops_enc_##a, \
+ openssl_ops_enc_chained_##a); \
+ vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_DEC, \
+ openssl_ops_dec_##a, \
+ openssl_ops_dec_chained_##a); \
foreach_openssl_evp_op;
#undef _
#define _(a, b) \
- vnet_crypto_register_ops_handler (vm, eidx, VNET_CRYPTO_OP_##a##_HMAC, \
- openssl_ops_hmac_##a); \
+ vnet_crypto_register_ops_handlers (vm, eidx, VNET_CRYPTO_OP_##a##_HMAC, \
+ openssl_ops_hmac_##a, \
+ openssl_ops_hmac_chained_##a); \
foreach_openssl_hmac_op;
#undef _
diff --git a/src/plugins/unittest/crypto/aes_cbc.c b/src/plugins/unittest/crypto/aes_cbc.c
index b52f728a1cb..b3e95e4c093 100644
--- a/src/plugins/unittest/crypto/aes_cbc.c
+++ b/src/plugins/unittest/crypto/aes_cbc.c
@@ -122,6 +122,21 @@ UNITTEST_REGISTER_CRYPTO_TEST (nist_aes256_cbc) = {
.ciphertext = TEST_DATA (ciphertext256),
};
+UNITTEST_REGISTER_CRYPTO_TEST (nist_aes256_cbc_chained) = {
+ .name = "NIST SP 800-38A [chained]",
+ .alg = VNET_CRYPTO_ALG_AES_256_CBC,
+ .iv = TEST_DATA (iv),
+ .key = TEST_DATA (key256),
+ .is_chained = 1,
+ .pt_chunks = {
+ TEST_DATA_CHUNK (plaintext, 0, 32),
+ TEST_DATA_CHUNK (plaintext, 32, 32),
+ },
+ .ct_chunks = {
+ TEST_DATA_CHUNK (ciphertext256, 0, 32),
+ TEST_DATA_CHUNK (ciphertext256, 32, 32),
+ },
+};
/* *INDENT-ON* */
/*
diff --git a/src/plugins/unittest/crypto/aes_gcm.c b/src/plugins/unittest/crypto/aes_gcm.c
index 0a7aafca100..764ca9e97c5 100644
--- a/src/plugins/unittest/crypto/aes_gcm.c
+++ b/src/plugins/unittest/crypto/aes_gcm.c
@@ -244,6 +244,26 @@ UNITTEST_REGISTER_CRYPTO_TEST (aes_gcm256_tc4) = {
.aad = TEST_DATA(tc4_aad),
.tag = TEST_DATA (tc4_tag256),
};
+
+UNITTEST_REGISTER_CRYPTO_TEST (aes_gcm256_tc4_chain) = {
+ .name = "256-GCM Spec. TC4 [chained]",
+ .alg = VNET_CRYPTO_ALG_AES_256_GCM,
+ .iv = TEST_DATA (tc3_iv),
+ .key = TEST_DATA (tc3_key256),
+ .aad = TEST_DATA(tc4_aad),
+ .tag = TEST_DATA (tc4_tag256),
+ .is_chained = 1,
+ .pt_chunks = {
+ TEST_DATA_CHUNK (tc4_plaintext, 0, 20),
+ TEST_DATA_CHUNK (tc4_plaintext, 20, 20),
+ TEST_DATA_CHUNK (tc4_plaintext, 40, 20),
+ },
+ .ct_chunks = {
+ TEST_DATA_CHUNK (tc4_ciphertext256, 0, 20),
+ TEST_DATA_CHUNK (tc4_ciphertext256, 20, 20),
+ TEST_DATA_CHUNK (tc4_ciphertext256, 40, 20),
+ },
+};
/* *INDENT-ON* */
/*
diff --git a/src/plugins/unittest/crypto/crypto.h b/src/plugins/unittest/crypto/crypto.h
index f15e34b02f0..d95c994dfd2 100644
--- a/src/plugins/unittest/crypto/crypto.h
+++ b/src/plugins/unittest/crypto/crypto.h
@@ -17,6 +17,8 @@
#ifndef included_unittest_crypto_crypto_h
#define included_unittest_crypto_crypto_h
+#define CRYPTO_TEST_MAX_OP_CHUNKS 8
+
typedef struct
{
u32 length;
@@ -29,6 +31,11 @@ typedef struct unittest_crypto_test_registration
vnet_crypto_alg_t alg;
unittest_crypto_test_data_t iv, key, digest, plaintext, ciphertext, aad,
tag;
+ u8 is_chained;
+
+ /* plaintext and cipher text data used for testing chained buffers */
+ unittest_crypto_test_data_t pt_chunks[CRYPTO_TEST_MAX_OP_CHUNKS + 1];
+ unittest_crypto_test_data_t ct_chunks[CRYPTO_TEST_MAX_OP_CHUNKS + 1];
/* next */
struct unittest_crypto_test_registration *next;
@@ -52,6 +59,7 @@ typedef struct
extern crypto_test_main_t crypto_test_main;
#define TEST_DATA(n) { .data = (u8 *) n, .length = sizeof (n)}
+#define TEST_DATA_CHUNK(s,off,n) { .data = (u8 *) s + off, .length = n}
#define UNITTEST_REGISTER_CRYPTO_TEST(x) \
unittest_crypto_test_registration_t __unittest_crypto_test_##x; \
diff --git a/src/plugins/unittest/crypto/rfc2202_hmac_md5.c b/src/plugins/unittest/crypto/rfc2202_hmac_md5.c
index 76bd8a5f443..7a39aed3030 100644
--- a/src/plugins/unittest/crypto/rfc2202_hmac_md5.c
+++ b/src/plugins/unittest/crypto/rfc2202_hmac_md5.c
@@ -191,6 +191,18 @@ UNITTEST_REGISTER_CRYPTO_TEST (rfc_2202_md5_tc7) = {
.plaintext = TEST_DATA (md5_tc7_data),
.digest = TEST_DATA (md5_tc7_digest),
};
+
+UNITTEST_REGISTER_CRYPTO_TEST (rfc_2202_md5_tc7_chained) = {
+ .name = "RFC2202 HMAC-MD5 TC7 [chained]",
+ .alg = VNET_CRYPTO_ALG_HMAC_MD5,
+ .key = TEST_DATA (md5_tc6_key),
+ .digest = TEST_DATA (md5_tc7_digest),
+ .is_chained = 1,
+ .pt_chunks = {
+ TEST_DATA_CHUNK (md5_tc7_data, 0, 40),
+ TEST_DATA_CHUNK (md5_tc7_data, 40, 33)
+ },
+};
/* *INDENT-ON* */
/*
diff --git a/src/plugins/unittest/crypto/rfc2202_hmac_sha1.c b/src/plugins/unittest/crypto/rfc2202_hmac_sha1.c
index b3942aafa59..d009afe6af7 100644
--- a/src/plugins/unittest/crypto/rfc2202_hmac_sha1.c
+++ b/src/plugins/unittest/crypto/rfc2202_hmac_sha1.c
@@ -218,6 +218,21 @@ UNITTEST_REGISTER_CRYPTO_TEST (rfc_2202_sha1_tc7) = {
};
/* *INDENT-ON* */
+/* *INDENT-OFF* */
+UNITTEST_REGISTER_CRYPTO_TEST (rfc_2202_sha1_tc7_chained) = {
+ .name = "RFC2202 HMAC-SHA-1 TC7 [chained]",
+ .alg = VNET_CRYPTO_ALG_HMAC_SHA1,
+ .key = TEST_DATA (sha1_tc6_key),
+ .digest = TEST_DATA (sha1_tc7_digest),
+
+ .is_chained = 1,
+ .pt_chunks = {
+ TEST_DATA_CHUNK (sha1_tc7_data, 0, 40),
+ TEST_DATA_CHUNK (sha1_tc7_data, 40, 33)
+ },
+};
+/* *INDENT-ON* */
+
/*
* fd.io coding-style-patch-verification: ON
*
diff --git a/src/plugins/unittest/crypto/rfc4231.c b/src/plugins/unittest/crypto/rfc4231.c
index b247d62f2a9..127e1bfe521 100644
--- a/src/plugins/unittest/crypto/rfc4231.c
+++ b/src/plugins/unittest/crypto/rfc4231.c
@@ -584,6 +584,20 @@ UNITTEST_REGISTER_CRYPTO_TEST (rfc4231_tc7_sha512) = {
.plaintext = TEST_DATA (tc7_data),
.digest = TEST_DATA (tc7_digest_sha512),
};
+
+UNITTEST_REGISTER_CRYPTO_TEST (rfc4231_tc7_sha512_chain) = {
+ .name = "RFC4231 TC7 [chained]",
+ .alg = VNET_CRYPTO_ALG_HMAC_SHA512,
+ .key = TEST_DATA (tc7_key),
+ .digest = TEST_DATA (tc7_digest_sha512),
+ .is_chained = 1,
+ .pt_chunks = {
+ TEST_DATA_CHUNK (tc7_data, 0, 50),
+ TEST_DATA_CHUNK (tc7_data, 50, 50),
+ TEST_DATA_CHUNK (tc7_data, 100, 50),
+ TEST_DATA_CHUNK (tc7_data, 150, 2),
+ },
+};
/* *INDENT-ON* */
/*
diff --git a/src/plugins/unittest/crypto_test.c b/src/plugins/unittest/crypto_test.c
index 9030415aec8..3bc06593742 100644
--- a/src/plugins/unittest/crypto_test.c
+++ b/src/plugins/unittest/crypto_test.c
@@ -30,6 +30,137 @@ sort_registrations (void *a0, void *a1)
return (strncmp (r0[0]->name, r1[0]->name, 256));
}
+static void
+print_results (vlib_main_t * vm, unittest_crypto_test_registration_t ** rv,
+ vnet_crypto_op_t * ops, vnet_crypto_op_chunk_t * chunks,
+ u32 n_ops, int verbose)
+{
+ int i;
+ unittest_crypto_test_registration_t *r;
+ vnet_crypto_op_chunk_t *chp;
+ u8 *s = 0, *err = 0;
+ vnet_crypto_op_t *op;
+
+ vec_foreach (op, ops)
+ {
+ int fail = 0;
+ r = rv[op->user_data];
+ unittest_crypto_test_data_t *exp_pt = 0, *exp_ct = 0;
+ unittest_crypto_test_data_t *exp_digest = 0, *exp_tag = 0;
+ unittest_crypto_test_data_t *exp_pt_chunks = 0, *exp_ct_chunks = 0;
+
+ switch (vnet_crypto_get_op_type (op->op))
+ {
+ case VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT:
+ exp_tag = &r->tag;
+ /* fall through */
+ case VNET_CRYPTO_OP_TYPE_ENCRYPT:
+ exp_ct = &r->ciphertext;
+ exp_ct_chunks = r->ct_chunks;
+ break;
+ case VNET_CRYPTO_OP_TYPE_AEAD_DECRYPT:
+ case VNET_CRYPTO_OP_TYPE_DECRYPT:
+ exp_pt = &r->plaintext;
+ exp_pt_chunks = r->pt_chunks;
+ break;
+ case VNET_CRYPTO_OP_TYPE_HMAC:
+ exp_digest = &r->digest;
+ break;
+ default:
+ ASSERT (0);
+ }
+
+ vec_reset_length (err);
+
+ if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
+ err = format (err, "%sengine error: %U", vec_len (err) ? ", " : "",
+ format_vnet_crypto_op_status, op->status);
+
+ if (op->flags & VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS)
+ {
+ if (exp_ct_chunks)
+ {
+ chp = vec_elt_at_index (chunks, op->chunk_index);
+ for (i = 0; i < op->n_chunks; i++)
+ {
+ if (memcmp (chp->dst, exp_ct_chunks[i].data, chp->len))
+ err = format (err, "%sciphertext mismatch [chunk %d]",
+ vec_len (err) ? ", " : "", i);
+ chp += 1;
+ }
+ }
+
+ if (exp_pt_chunks)
+ {
+ chp = vec_elt_at_index (chunks, op->chunk_index);
+ for (i = 0; i < op->n_chunks; i++)
+ {
+ if (memcmp (chp->dst, exp_pt_chunks[i].data, chp->len))
+ err = format (err, "%splaintext mismatch [chunk %d]",
+ vec_len (err) ? ", " : "", i);
+ chp += 1;
+ }
+ }
+ }
+ else
+ {
+ if (exp_ct && memcmp (op->dst, exp_ct->data, exp_ct->length) != 0)
+ err = format (err, "%sciphertext mismatch",
+ vec_len (err) ? ", " : "");
+
+ if (exp_pt && memcmp (op->dst, exp_pt->data, exp_pt->length) != 0)
+ err = format (err, "%splaintext mismatch",
+ vec_len (err) ? ", " : "");
+ }
+
+ if (exp_tag && memcmp (op->tag, exp_tag->data, exp_tag->length) != 0)
+ err = format (err, "%stag mismatch", vec_len (err) ? ", " : "");
+
+ if (exp_digest &&
+ memcmp (op->digest, exp_digest->data, exp_digest->length) != 0)
+ err = format (err, "%sdigest mismatch", vec_len (err) ? ", " : "");
+
+ vec_reset_length (s);
+ s = format (s, "%s (%U)", r->name, format_vnet_crypto_op, op->op,
+ r->is_chained);
+
+ if (vec_len (err))
+ fail = 1;
+
+ vlib_cli_output (vm, "%-60v%s%v", s, vec_len (err) ? "FAIL: " : "OK",
+ err);
+ if (verbose)
+ {
+ if (verbose == 2)
+ fail = 1;
+
+ if (exp_ct && fail)
+ vlib_cli_output (vm, "Expected ciphertext:\n%U"
+ "\nCalculated ciphertext:\n%U",
+ format_hexdump, exp_ct->data, exp_ct->length,
+ format_hexdump, op->dst, exp_ct->length);
+ if (exp_pt && fail)
+ vlib_cli_output (vm, "Expected plaintext:\n%U"
+ "\nCalculated plaintext:\n%U",
+ format_hexdump, exp_pt->data, exp_pt->length,
+ format_hexdump, op->dst, exp_pt->length);
+ if (r->tag.length && fail)
+ vlib_cli_output (vm, "Expected tag:\n%U"
+ "\nCalculated tag:\n%U",
+ format_hexdump, r->tag.data, r->tag.length,
+ format_hexdump, op->tag, op->tag_len);
+ if (exp_digest && fail)
+ vlib_cli_output (vm, "Expected digest:\n%U"
+ "\nCalculated Digest:\n%U",
+ format_hexdump, exp_digest->data,
+ exp_digest->length, format_hexdump, op->digest,
+ op->digest_len);
+ }
+ }
+ vec_free (err);
+ vec_free (s);
+}
+
static clib_error_t *
test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
{
@@ -37,11 +168,14 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
unittest_crypto_test_registration_t *r = tm->test_registrations;
unittest_crypto_test_registration_t **rv = 0;
vnet_crypto_alg_data_t *ad;
- vnet_crypto_op_t *ops = 0, *op;
+ vnet_crypto_op_t *ops = 0, *op, *chained_ops = 0;
+ vnet_crypto_op_t *current_chained_op = 0, *current_op = 0;
+ vnet_crypto_op_chunk_t *chunks = 0, ch;
vnet_crypto_key_index_t *key_indices = 0;
- u8 *computed_data = 0, *s = 0, *err = 0;
- u32 computed_data_total_len = 0, n_ops = 0;
- u32 i;
+ u8 *computed_data = 0;
+ u32 computed_data_total_len = 0, n_ops = 0, n_chained_ops = 0;
+ unittest_crypto_test_data_t *pt, *ct;
+ u32 i, j;
/* construct registration vector */
while (r)
@@ -61,17 +195,56 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
case VNET_CRYPTO_OP_TYPE_ENCRYPT:
case VNET_CRYPTO_OP_TYPE_DECRYPT:
case VNET_CRYPTO_OP_TYPE_AEAD_DECRYPT:
- computed_data_total_len += r->ciphertext.length;
- n_ops += 1;
+ if (r->is_chained)
+ {
+ ct = r->ct_chunks;
+ j = 0;
+ while (ct->data)
+ {
+ if (j > CRYPTO_TEST_MAX_OP_CHUNKS)
+ return clib_error_return (0,
+ "test case '%s' exceeds extra data!",
+ r->name);
+ computed_data_total_len += ct->length;
+ ct++;
+ j++;
+ }
+ n_chained_ops += 1;
+ }
+ else
+ {
+ computed_data_total_len += r->ciphertext.length;
+ n_ops += 1;
+ }
break;
case VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT:
computed_data_total_len += r->ciphertext.length;
computed_data_total_len += r->tag.length;
- n_ops += 1;
+ if (r->is_chained)
+ {
+ ct = r->ct_chunks;
+ j = 0;
+ while (ct->data)
+ {
+ if (j > CRYPTO_TEST_MAX_OP_CHUNKS)
+ return clib_error_return (0,
+ "test case '%s' exceeds extra data!",
+ r->name);
+ computed_data_total_len += ct->length;
+ ct++;
+ j++;
+ }
+ n_chained_ops += 1;
+ }
+ else
+ n_ops += 1;
break;
case VNET_CRYPTO_OP_TYPE_HMAC:
computed_data_total_len += r->digest.length;
- n_ops += 1;
+ if (r->is_chained)
+ n_chained_ops += 1;
+ else
+ n_ops += 1;
break;
default:
break;
@@ -91,9 +264,12 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
vec_validate_aligned (computed_data, computed_data_total_len - 1,
CLIB_CACHE_LINE_BYTES);
vec_validate_aligned (ops, n_ops - 1, CLIB_CACHE_LINE_BYTES);
+ vec_validate_aligned (chained_ops, n_chained_ops - 1,
+ CLIB_CACHE_LINE_BYTES);
computed_data_total_len = 0;
- op = ops;
+ current_op = ops;
+ current_chained_op = chained_ops;
/* *INDENT-OFF* */
vec_foreach_index (i, rv)
{
@@ -107,7 +283,18 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
if (id == 0)
continue;
- vnet_crypto_op_init (op, id);
+ if (r->is_chained)
+ {
+ op = current_chained_op;
+ current_chained_op += 1;
+ }
+ else
+ {
+ op = current_op;
+ current_op += 1;
+ }
+
+ vnet_crypto_op_init (op, id);
switch (t)
{
@@ -118,14 +305,85 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
r->key.data,
r->key.length);
vec_add1 (key_indices, op->key_index);
- op->len = r->plaintext.length;
- op->src = t == VNET_CRYPTO_OP_TYPE_ENCRYPT ?
- r->plaintext.data : r->ciphertext.data;
- op->dst = computed_data + computed_data_total_len;
- computed_data_total_len += r->ciphertext.length;
+
+ if (r->is_chained)
+ {
+ pt = r->pt_chunks;
+ ct = r->ct_chunks;
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (chunks);
+ while (pt->data)
+ {
+ ch.src = t == VNET_CRYPTO_OP_TYPE_ENCRYPT ?
+ pt->data : ct->data;
+ ch.len = pt->length;
+ ch.dst = computed_data + computed_data_total_len;
+ computed_data_total_len += pt->length;
+ vec_add1 (chunks, ch);
+ op->n_chunks++;
+ pt++;
+ ct++;
+ }
+ }
+ else
+ {
+ op->len = r->plaintext.length;
+ op->src = t == VNET_CRYPTO_OP_TYPE_ENCRYPT ?
+ r->plaintext.data : r->ciphertext.data;
+ op->dst = computed_data + computed_data_total_len;
+ computed_data_total_len += r->ciphertext.length;
+ }
break;
case VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT:
case VNET_CRYPTO_OP_TYPE_AEAD_DECRYPT:
+ if (r->is_chained)
+ {
+ op->iv = r->iv.data;
+ op->key_index = vnet_crypto_key_add (vm, r->alg,
+ r->key.data,
+ r->key.length);
+ vec_add1 (key_indices, op->key_index);
+ op->aad = r->aad.data;
+ op->aad_len = r->aad.length;
+ if (t == VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT)
+ {
+ pt = r->pt_chunks;
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (chunks);
+ while (pt->data)
+ {
+ ch.src = pt->data;
+ ch.len = pt->length;
+ ch.dst = computed_data + computed_data_total_len;
+ computed_data_total_len += pt->length;
+ vec_add1 (chunks, ch);
+ op->n_chunks++;
+ pt++;
+ }
+ op->tag = computed_data + computed_data_total_len;
+ computed_data_total_len += r->tag.length;
+ }
+ else
+ {
+ ct = r->ct_chunks;
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (chunks);
+ while (ct->data)
+ {
+ ch.src = ct->data;
+ ch.len = ct->length;
+ ch.dst = computed_data + computed_data_total_len;
+ computed_data_total_len += ct->length;
+ vec_add1 (chunks, ch);
+ op->n_chunks++;
+ ct++;
+ }
+ op->tag = r->tag.data;
+ }
+ op->tag_len = r->tag.length;
+ }
+ else
+ {
op->iv = r->iv.data;
op->key_index = vnet_crypto_key_add (vm, r->alg,
r->key.data,
@@ -136,135 +394,80 @@ test_crypto (vlib_main_t * vm, crypto_test_main_t * tm)
op->len = r->plaintext.length;
op->dst = computed_data + computed_data_total_len;
computed_data_total_len += r->ciphertext.length;
+
if (t == VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT)
{
- op->src = r->plaintext.data;
+ op->src = r->plaintext.data;
op->tag = computed_data + computed_data_total_len;
computed_data_total_len += r->tag.length;
}
else
{
- op->src = r->ciphertext.data;
- op->tag = r->tag.data;
+ op->tag = r->tag.data;
+ op->src = r->ciphertext.data;
}
op->tag_len = r->tag.length;
+ }
break;
case VNET_CRYPTO_OP_TYPE_HMAC:
+ if (r->is_chained)
+ {
op->key_index = vnet_crypto_key_add (vm, r->alg,
r->key.data,
r->key.length);
vec_add1 (key_indices, op->key_index);
- op->src = r->plaintext.data;
- op->len = r->plaintext.length;
- op->digest_len = r->digest.length;
- op->digest = computed_data + computed_data_total_len;
- computed_data_total_len += r->digest.length;
+ op->digest_len = r->digest.length;
+ op->digest = computed_data + computed_data_total_len;
+ computed_data_total_len += r->digest.length;
+ pt = r->pt_chunks;
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (chunks);
+ while (pt->data)
+ {
+ ch.src = pt->data;
+ ch.len = pt->length;
+ vec_add1 (chunks, ch);
+ op->n_chunks++;
+ pt++;
+ }
+ }
+ else
+ {
+ op->key_index = vnet_crypto_key_add (vm, r->alg,
+ r->key.data,
+ r->key.length);
+ vec_add1 (key_indices, op->key_index);
+ op->digest_len = r->digest.length;
+ op->digest = computed_data + computed_data_total_len;
+ computed_data_total_len += r->digest.length;
+ op->src = r->plaintext.data;
+ op->len = r->plaintext.length;
+ }
break;
default:
break;
};
op->user_data = i;
- op++;
}
}
/* *INDENT-ON* */
vnet_crypto_process_ops (vm, ops, vec_len (ops));
+ vnet_crypto_process_chained_ops (vm, chained_ops, chunks,
+ vec_len (chained_ops));
- /* *INDENT-OFF* */
- vec_foreach (op, ops)
- {
- int fail = 0;
- r = rv[op->user_data];
- unittest_crypto_test_data_t *exp_pt = 0, *exp_ct = 0;
- unittest_crypto_test_data_t *exp_digest = 0, *exp_tag = 0;
+ print_results (vm, rv, ops, chunks, vec_len (ops), tm->verbose);
+ print_results (vm, rv, chained_ops, chunks, vec_len (chained_ops),
+ tm->verbose);
- switch (vnet_crypto_get_op_type (op->op))
- {
- case VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT:
- exp_tag = &r->tag;
- /* fall through */
- case VNET_CRYPTO_OP_TYPE_ENCRYPT:
- exp_ct = &r->ciphertext;
- break;
- case VNET_CRYPTO_OP_TYPE_AEAD_DECRYPT:
- case VNET_CRYPTO_OP_TYPE_DECRYPT:
- exp_pt = &r->plaintext;
- break;
- case VNET_CRYPTO_OP_TYPE_HMAC:
- exp_digest = &r->digest;
- break;
- default:
- break;
- }
-
- vec_reset_length (err);
-
- if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
- err = format (err, "%sengine error: %U", vec_len (err) ? ", " : "",
- format_vnet_crypto_op_status, op->status);
-
- if (exp_ct && memcmp (op->dst, exp_ct->data, exp_ct->length) != 0)
- err = format (err, "%sciphertext mismatch",
- vec_len (err) ? ", " : "");
-
- if (exp_pt && memcmp (op->dst, exp_pt->data, exp_pt->length) != 0)
- err = format (err, "%splaintext mismatch", vec_len (err) ? ", " : "");
-
- if (exp_tag && memcmp (op->tag, exp_tag->data, exp_tag->length) != 0)
- err = format (err, "%stag mismatch", vec_len (err) ? ", " : "");
-
- if (exp_digest &&
- memcmp (op->digest, exp_digest->data, exp_digest->length) != 0)
- err = format (err, "%sdigest mismatch", vec_len (err) ? ", " : "");
-
- vec_reset_length (s);
- s = format (s, "%s (%U)", r->name, format_vnet_crypto_op, op->op);
-
- if (vec_len (err))
- fail = 1;
-
- vlib_cli_output (vm, "%-60v%s%v", s, vec_len (err) ? "FAIL: " : "OK",
- err);
- if (tm->verbose)
- {
- if (tm->verbose == 2)
- fail = 1;
-
- if (exp_ct && fail)
- vlib_cli_output (vm, "Expected ciphertext:\n%U"
- "\nCalculated ciphertext:\n%U",
- format_hexdump, exp_ct->data, exp_ct->length,
- format_hexdump, op->dst, exp_ct->length);
- if (exp_pt && fail)
- vlib_cli_output (vm, "Expected plaintext:\n%U"
- "\nCalculated plaintext:\n%U",
- format_hexdump, exp_pt->data, exp_pt->length,
- format_hexdump, op->dst, exp_pt->length);
- if (r->tag.length && fail)
- vlib_cli_output (vm, "Expected tag:\n%U"
- "\nCalculated tag:\n%U",
- format_hexdump, r->tag.data, r->tag.length,
- format_hexdump, op->tag, op->tag_len);
- if (exp_digest && fail)
- vlib_cli_output (vm, "Expected digest:\n%U"
- "\nCalculated Digest:\n%U",
- format_hexdump, exp_digest->data,
- exp_digest->length, format_hexdump, op->digest,
- op->digest_len);
- }
- }
-
- vec_foreach_index (i, key_indices)
- vnet_crypto_key_del (vm, key_indices[i]);
- /* *INDENT-ON* */
+ vec_foreach_index (i, key_indices) vnet_crypto_key_del (vm, key_indices[i]);
vec_free (computed_data);
vec_free (ops);
- vec_free (err);
+ vec_free (chained_ops);
+ vec_free (chunks);
vec_free (rv);
- vec_free (s);
return 0;
}
diff --git a/src/vnet/crypto/cli.c b/src/vnet/crypto/cli.c
index 8d523aec484..ef6371ad3dc 100644
--- a/src/vnet/crypto/cli.c
+++ b/src/vnet/crypto/cli.c
@@ -74,14 +74,24 @@ format_vnet_crypto_handlers (u8 * s, va_list * args)
od = cm->opt_data + id;
if (first == 0)
s = format (s, "\n%U", format_white_space, indent);
- s = format (s, "%-20U%-20U", format_vnet_crypto_op_type, od->type,
- format_vnet_crypto_engine, od->active_engine_index,s);
+ s = format (s, "%-22U%-20U", format_vnet_crypto_op_type, od->type, 0,
+ format_vnet_crypto_engine, od->active_engine_index_simple,s);
vec_foreach (e, cm->engines)
{
if (e->ops_handlers[id] != 0)
s = format (s, "%U ", format_vnet_crypto_engine, e - cm->engines);
}
+
+ s = format (s, "\n%U", format_white_space, indent);
+ s = format (s, "%-22U%-20U", format_vnet_crypto_op_type, od->type, 1,
+ format_vnet_crypto_engine,
+ od->active_engine_index_chained);
+ vec_foreach (e, cm->engines)
+ {
+ if (e->chained_ops_handlers[id] != 0)
+ s = format (s, "%U ", format_vnet_crypto_engine, e - cm->engines);
+ }
first = 0;
}
return s;
@@ -98,7 +108,7 @@ show_crypto_handlers_command_fn (vlib_main_t * vm,
if (unformat_user (input, unformat_line_input, line_input))
unformat_free (line_input);
- vlib_cli_output (vm, "%-20s%-20s%-20s%s", "Algo", "Type", "Active",
+ vlib_cli_output (vm, "%-20s%-22s%-20s%s", "Algo", "Type", "Active",
"Candidates");
for (i = 0; i < VNET_CRYPTO_N_ALGS; i++)
@@ -128,6 +138,7 @@ set_crypto_handler_command_fn (vlib_main_t * vm,
char **args = 0, *s, **arg, *engine = 0;
int all = 0;
clib_error_t *error = 0;
+ crypto_op_class_type_t oct = CRYPTO_OP_BOTH;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
@@ -136,6 +147,12 @@ set_crypto_handler_command_fn (vlib_main_t * vm,
{
if (unformat (line_input, "all"))
all = 1;
+ else if (unformat (line_input, "simple"))
+ oct = CRYPTO_OP_SIMPLE;
+ else if (unformat (line_input, "chained"))
+ oct = CRYPTO_OP_CHAINED;
+ else if (unformat (line_input, "both"))
+ oct = CRYPTO_OP_BOTH;
else if (unformat (line_input, "%s", &s))
vec_add1 (args, s);
else
@@ -163,7 +180,7 @@ set_crypto_handler_command_fn (vlib_main_t * vm,
hash_foreach_mem (key, value, cm->alg_index_by_name,
({
(void) value;
- rc += vnet_crypto_set_handler (key, engine);
+ rc += vnet_crypto_set_handler2 (key, engine, oct);
}));
/* *INDENT-ON* */
@@ -174,7 +191,7 @@ set_crypto_handler_command_fn (vlib_main_t * vm,
{
vec_foreach (arg, args)
{
- rc = vnet_crypto_set_handler (arg[0], engine);
+ rc = vnet_crypto_set_handler2 (arg[0], engine, oct);
if (rc)
{
vlib_cli_output (vm, "failed to set engine %s for %s!",
@@ -195,7 +212,8 @@ done:
VLIB_CLI_COMMAND (set_crypto_handler_command, static) =
{
.path = "set crypto handler",
- .short_help = "set crypto handler cipher [cipher2 cipher3 ...] engine",
+ .short_help = "set crypto handler cipher [cipher2 cipher3 ...] engine"
+ " [simple|chained]",
.function = set_crypto_handler_command_fn,
};
/* *INDENT-ON* */
diff --git a/src/vnet/crypto/crypto.c b/src/vnet/crypto/crypto.c
index 6cd12108f6c..4458bfcff4d 100644
--- a/src/vnet/crypto/crypto.c
+++ b/src/vnet/crypto/crypto.c
@@ -19,31 +19,52 @@
vnet_crypto_main_t crypto_main;
+static_always_inline void
+crypto_set_op_status (vnet_crypto_op_t * ops[], u32 n_ops, int status)
+{
+ while (n_ops--)
+ {
+ ops[0]->status = status;
+ ops++;
+ }
+}
+
static_always_inline u32
vnet_crypto_process_ops_call_handler (vlib_main_t * vm,
vnet_crypto_main_t * cm,
vnet_crypto_op_id_t opt,
- vnet_crypto_op_t * ops[], u32 n_ops)
+ vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t * chunks,
+ u32 n_ops)
{
+ u32 rv = 0;
if (n_ops == 0)
return 0;
- if (cm->ops_handlers[opt] == 0)
+ if (chunks)
{
- while (n_ops--)
- {
- ops[0]->status = VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER;
- ops++;
- }
- return 0;
- }
- return (cm->ops_handlers[opt]) (vm, ops, n_ops);
+ if (cm->chained_ops_handlers[opt] == 0)
+ crypto_set_op_status (ops, n_ops,
+ VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER);
+ else
+ rv = (cm->chained_ops_handlers[opt]) (vm, ops, chunks, n_ops);
+ }
+ else
+ {
+ if (cm->ops_handlers[opt] == 0)
+ crypto_set_op_status (ops, n_ops,
+ VNET_CRYPTO_OP_STATUS_FAIL_NO_HANDLER);
+ else
+ rv = (cm->ops_handlers[opt]) (vm, ops, n_ops);
+ }
+ return rv;
}
-u32
-vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
+static_always_inline u32
+vnet_crypto_process_ops_inline (vlib_main_t * vm, vnet_crypto_op_t ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops)
{
vnet_crypto_main_t *cm = &crypto_main;
const int op_q_size = VLIB_FRAME_SIZE;
@@ -61,7 +82,8 @@ vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
if (current_op_type != opt || n_op_queue >= op_q_size)
{
rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
- op_queue, n_op_queue);
+ op_queue, chunks,
+ n_op_queue);
n_op_queue = 0;
current_op_type = opt;
}
@@ -70,11 +92,24 @@ vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
}
rv += vnet_crypto_process_ops_call_handler (vm, cm, current_op_type,
- op_queue, n_op_queue);
+ op_queue, chunks, n_op_queue);
return rv;
}
u32
+vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[], u32 n_ops)
+{
+ return vnet_crypto_process_ops_inline (vm, ops, 0, n_ops);
+}
+
+u32
+vnet_crypto_process_chained_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
+ vnet_crypto_op_chunk_t * chunks, u32 n_ops)
+{
+ return vnet_crypto_process_ops_inline (vm, ops, chunks, n_ops);
+}
+
+u32
vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
char *desc)
{
@@ -91,13 +126,40 @@ vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
return p - cm->engines;
}
+static_always_inline void
+crypto_set_active_engine (vnet_crypto_op_data_t * od,
+ vnet_crypto_op_id_t id, u32 ei,
+ crypto_op_class_type_t oct)
+{
+ vnet_crypto_main_t *cm = &crypto_main;
+ vnet_crypto_engine_t *ce = vec_elt_at_index (cm->engines, ei);
+
+ if (oct == CRYPTO_OP_BOTH || oct == CRYPTO_OP_CHAINED)
+ {
+ if (ce->chained_ops_handlers[id])
+ {
+ od->active_engine_index_chained = ei;
+ cm->chained_ops_handlers[id] = ce->chained_ops_handlers[id];
+ }
+ }
+
+ if (oct == CRYPTO_OP_BOTH || oct == CRYPTO_OP_SIMPLE)
+ {
+ if (ce->ops_handlers[id])
+ {
+ od->active_engine_index_simple = ei;
+ cm->ops_handlers[id] = ce->ops_handlers[id];
+ }
+ }
+}
+
int
-vnet_crypto_set_handler (char *alg_name, char *engine)
+vnet_crypto_set_handler2 (char *alg_name, char *engine,
+ crypto_op_class_type_t oct)
{
uword *p;
vnet_crypto_main_t *cm = &crypto_main;
vnet_crypto_alg_data_t *ad;
- vnet_crypto_engine_t *ce;
int i;
p = hash_get_mem (cm->alg_index_by_name, alg_name);
@@ -110,20 +172,15 @@ vnet_crypto_set_handler (char *alg_name, char *engine)
if (!p)
return -1;
- ce = vec_elt_at_index (cm->engines, p[0]);
-
- for (i = 0; i < VNET_CRYPTO_OP_N_TYPES; i++)
+ for (i = 0; i < VNET_CRYPTO_OP_N_TYPES; i += 2)
{
vnet_crypto_op_data_t *od;
vnet_crypto_op_id_t id = ad->op_by_type[i];
if (id == 0)
continue;
+
od = cm->opt_data + id;
- if (ce->ops_handlers[id])
- {
- od->active_engine_index = p[0];
- cm->ops_handlers[id] = ce->ops_handlers[id];
- }
+ crypto_set_active_engine (od, id, p[0], oct);
}
return 0;
@@ -138,34 +195,78 @@ vnet_crypto_is_set_handler (vnet_crypto_alg_t alg)
}
void
-vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
- vnet_crypto_op_id_t opt,
- vnet_crypto_ops_handler_t * fn)
+vnet_crypto_register_ops_handler_inline (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn,
+ vnet_crypto_chained_ops_handler_t *
+ cfn)
{
vnet_crypto_main_t *cm = &crypto_main;
vnet_crypto_engine_t *ae, *e = vec_elt_at_index (cm->engines, engine_index);
vnet_crypto_op_data_t *otd = cm->opt_data + opt;
vec_validate_aligned (cm->ops_handlers, VNET_CRYPTO_N_OP_IDS - 1,
CLIB_CACHE_LINE_BYTES);
- e->ops_handlers[opt] = fn;
+ vec_validate_aligned (cm->chained_ops_handlers, VNET_CRYPTO_N_OP_IDS - 1,
+ CLIB_CACHE_LINE_BYTES);
- if (otd->active_engine_index == ~0)
+ if (fn)
{
- otd->active_engine_index = engine_index;
- cm->ops_handlers[opt] = fn;
- return;
+ e->ops_handlers[opt] = fn;
+ if (otd->active_engine_index_simple == ~0)
+ {
+ otd->active_engine_index_simple = engine_index;
+ cm->ops_handlers[opt] = fn;
+ }
+
+ ae = vec_elt_at_index (cm->engines, otd->active_engine_index_simple);
+ if (ae->priority < e->priority)
+ crypto_set_active_engine (otd, opt, engine_index, CRYPTO_OP_SIMPLE);
}
- ae = vec_elt_at_index (cm->engines, otd->active_engine_index);
- if (ae->priority < e->priority)
+
+ if (cfn)
{
- otd->active_engine_index = engine_index;
- cm->ops_handlers[opt] = fn;
+ e->chained_ops_handlers[opt] = cfn;
+ if (otd->active_engine_index_chained == ~0)
+ {
+ otd->active_engine_index_chained = engine_index;
+ cm->chained_ops_handlers[opt] = cfn;
+ }
+
+ ae = vec_elt_at_index (cm->engines, otd->active_engine_index_chained);
+ if (ae->priority < e->priority)
+ crypto_set_active_engine (otd, opt, engine_index, CRYPTO_OP_CHAINED);
}
return;
}
void
+vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, fn, 0);
+}
+
+void
+vnet_crypto_register_chained_ops_handler (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_chained_ops_handler_t *
+ fn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, 0, fn);
+}
+
+void
+vnet_crypto_register_ops_handlers (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn,
+ vnet_crypto_chained_ops_handler_t * cfn)
+{
+ vnet_crypto_register_ops_handler_inline (vm, engine_index, opt, fn, cfn);
+}
+
+void
vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_key_handler_t * key_handler)
{
@@ -253,10 +354,13 @@ vnet_crypto_init_cipher_data (vnet_crypto_alg_t alg, vnet_crypto_op_id_t eid,
{
vnet_crypto_op_type_t eopt, dopt;
vnet_crypto_main_t *cm = &crypto_main;
+
cm->algs[alg].name = name;
cm->opt_data[eid].alg = cm->opt_data[did].alg = alg;
- cm->opt_data[eid].active_engine_index = ~0;
- cm->opt_data[did].active_engine_index = ~0;
+ cm->opt_data[eid].active_engine_index_simple = ~0;
+ cm->opt_data[did].active_engine_index_simple = ~0;
+ cm->opt_data[eid].active_engine_index_chained = ~0;
+ cm->opt_data[did].active_engine_index_chained = ~0;
if (is_aead)
{
eopt = VNET_CRYPTO_OP_TYPE_AEAD_ENCRYPT;
@@ -282,7 +386,8 @@ vnet_crypto_init_hmac_data (vnet_crypto_alg_t alg,
cm->algs[alg].name = name;
cm->algs[alg].op_by_type[VNET_CRYPTO_OP_TYPE_HMAC] = id;
cm->opt_data[id].alg = alg;
- cm->opt_data[id].active_engine_index = ~0;
+ cm->opt_data[id].active_engine_index_simple = ~0;
+ cm->opt_data[id].active_engine_index_chained = ~0;
cm->opt_data[id].type = VNET_CRYPTO_OP_TYPE_HMAC;
hash_set_mem (cm->alg_index_by_name, name, alg);
}
diff --git a/src/vnet/crypto/crypto.h b/src/vnet/crypto/crypto.h
index 626e71d5030..f89ecf9f3d5 100644
--- a/src/vnet/crypto/crypto.h
+++ b/src/vnet/crypto/crypto.h
@@ -116,6 +116,13 @@ typedef enum
} vnet_crypto_op_id_t;
/* *INDENT-ON* */
+typedef enum
+{
+ CRYPTO_OP_SIMPLE,
+ CRYPTO_OP_CHAINED,
+ CRYPTO_OP_BOTH,
+} crypto_op_class_type_t;
+
typedef struct
{
char *name;
@@ -124,30 +131,67 @@ typedef struct
typedef struct
{
+ u8 *src;
+ u8 *dst;
+ u32 len;
+} vnet_crypto_op_chunk_t;
+
+typedef struct
+{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+ uword user_data;
vnet_crypto_op_id_t op:16;
vnet_crypto_op_status_t status:8;
u8 flags;
#define VNET_CRYPTO_OP_FLAG_INIT_IV (1 << 0)
#define VNET_CRYPTO_OP_FLAG_HMAC_CHECK (1 << 1)
- u32 key_index;
- u32 len;
+#define VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS (1 << 2)
+
+ union
+ {
+ u8 digest_len;
+ u8 tag_len;
+ };
u16 aad_len;
- u8 digest_len, tag_len;
+
+ union
+ {
+ struct
+ {
+ u8 *src;
+ u8 *dst;
+ };
+
+ /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
+ u16 n_chunks;
+ };
+
+ union
+ {
+ u32 len;
+ /* valid if VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS is set */
+ u32 chunk_index;
+ };
+
+ u32 key_index;
u8 *iv;
- u8 *src;
- u8 *dst;
u8 *aad;
- u8 *tag;
- u8 *digest;
- uword user_data;
+
+ union
+ {
+ u8 *tag;
+ u8 *digest;
+ };
} vnet_crypto_op_t;
+STATIC_ASSERT_SIZEOF (vnet_crypto_op_t, CLIB_CACHE_LINE_BYTES);
+
typedef struct
{
vnet_crypto_op_type_t type;
vnet_crypto_alg_t alg;
- u32 active_engine_index;
+ u32 active_engine_index_simple;
+ u32 active_engine_index_chained;
} vnet_crypto_op_data_t;
typedef struct
@@ -158,6 +202,11 @@ typedef struct
typedef u32 vnet_crypto_key_index_t;
+typedef u32 (vnet_crypto_chained_ops_handler_t) (vlib_main_t * vm,
+ vnet_crypto_op_t * ops[],
+ vnet_crypto_op_chunk_t *
+ chunks, u32 n_ops);
+
typedef u32 (vnet_crypto_ops_handler_t) (vlib_main_t * vm,
vnet_crypto_op_t * ops[], u32 n_ops);
@@ -171,6 +220,18 @@ u32 vnet_crypto_register_engine (vlib_main_t * vm, char *name, int prio,
void vnet_crypto_register_ops_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_op_id_t opt,
vnet_crypto_ops_handler_t * oph);
+
+void vnet_crypto_register_chained_ops_handler (vlib_main_t * vm,
+ u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_chained_ops_handler_t
+ * oph);
+void vnet_crypto_register_ops_handlers (vlib_main_t * vm, u32 engine_index,
+ vnet_crypto_op_id_t opt,
+ vnet_crypto_ops_handler_t * fn,
+ vnet_crypto_chained_ops_handler_t *
+ cfn);
+
void vnet_crypto_register_key_handler (vlib_main_t * vm, u32 engine_index,
vnet_crypto_key_handler_t * keyh);
@@ -181,6 +242,8 @@ typedef struct
int priority;
vnet_crypto_key_handler_t *key_op_handler;
vnet_crypto_ops_handler_t *ops_handlers[VNET_CRYPTO_N_OP_IDS];
+ vnet_crypto_chained_ops_handler_t
+ * chained_ops_handlers[VNET_CRYPTO_N_OP_IDS];
} vnet_crypto_engine_t;
typedef struct
@@ -188,6 +251,7 @@ typedef struct
vnet_crypto_alg_data_t *algs;
vnet_crypto_thread_t *threads;
vnet_crypto_ops_handler_t **ops_handlers;
+ vnet_crypto_chained_ops_handler_t **chained_ops_handlers;
vnet_crypto_op_data_t opt_data[VNET_CRYPTO_N_OP_IDS];
vnet_crypto_engine_t *engines;
vnet_crypto_key_t *keys;
@@ -200,10 +264,14 @@ extern vnet_crypto_main_t crypto_main;
u32 vnet_crypto_submit_ops (vlib_main_t * vm, vnet_crypto_op_t ** jobs,
u32 n_jobs);
+u32 vnet_crypto_process_chained_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
+ vnet_crypto_op_chunk_t * chunks,
+ u32 n_ops);
u32 vnet_crypto_process_ops (vlib_main_t * vm, vnet_crypto_op_t ops[],
u32 n_ops);
-int vnet_crypto_set_handler (char *ops_handler_name, char *engine);
+int vnet_crypto_set_handler2 (char *ops_handler_name, char *engine,
+ crypto_op_class_type_t oct);
int vnet_crypto_is_set_handler (vnet_crypto_alg_t alg);
u32 vnet_crypto_key_add (vlib_main_t * vm, vnet_crypto_alg_t alg,
@@ -225,6 +293,7 @@ vnet_crypto_op_init (vnet_crypto_op_t * op, vnet_crypto_op_id_t type)
op->op = type;
op->flags = 0;
op->key_index = ~0;
+ op->n_chunks = 0;
}
static_always_inline vnet_crypto_op_type_t
@@ -243,6 +312,12 @@ vnet_crypto_get_key (vnet_crypto_key_index_t index)
return vec_elt_at_index (cm->keys, index);
}
+static_always_inline int
+vnet_crypto_set_handler (char *alg_name, char *engine)
+{
+ return vnet_crypto_set_handler2 (alg_name, engine, CRYPTO_OP_BOTH);
+}
+
#endif /* included_vnet_crypto_crypto_h */
/*
diff --git a/src/vnet/crypto/format.c b/src/vnet/crypto/format.c
index 715941e0ee7..3210ab9eac0 100644
--- a/src/vnet/crypto/format.c
+++ b/src/vnet/crypto/format.c
@@ -54,7 +54,7 @@ format_vnet_crypto_op (u8 * s, va_list * args)
vnet_crypto_op_id_t op = va_arg (*args, int); // vnet_crypto_op_id_t);
vnet_crypto_op_data_t *otd = cm->opt_data + op;
- return format (s, "%U-%U", format_vnet_crypto_op_type, otd->type,
+ return format (s, "%U-%U", format_vnet_crypto_op_type, otd->type, 0,
format_vnet_crypto_alg, otd->alg);
}
@@ -62,6 +62,7 @@ u8 *
format_vnet_crypto_op_type (u8 * s, va_list * args)
{
vnet_crypto_op_type_t opt = va_arg (*args, vnet_crypto_op_type_t);
+ int is_chained = va_arg (*args, int);
char *strings[] = {
#define _(n, s) [VNET_CRYPTO_OP_TYPE_##n] = s,
foreach_crypto_op_type
@@ -71,7 +72,7 @@ format_vnet_crypto_op_type (u8 * s, va_list * args)
if (opt >= VNET_CRYPTO_OP_N_TYPES)
return format (s, "unknown");
- return format (s, "%s", strings[opt]);
+ return format (s, "%s%s", strings[opt], is_chained ? "-chained" : "");
}
u8 *
diff --git a/src/vnet/ipsec/esp_decrypt.c b/src/vnet/ipsec/esp_decrypt.c
index 56724c00239..f29dacb3dc7 100644
--- a/src/vnet/ipsec/esp_decrypt.c
+++ b/src/vnet/ipsec/esp_decrypt.c
@@ -50,7 +50,7 @@ typedef enum
_(CRYPTO_ENGINE_ERROR, "crypto engine error (packet dropped)") \
_(REPLAY, "SA replayed packet") \
_(RUNT, "undersized packet") \
- _(CHAINED_BUFFER, "chained buffers (packet dropped)") \
+ _(NO_BUFFERS, "no buffers (packet dropped)") \
_(OVERSIZED_HEADER, "buffer with oversized header (dropped)") \
_(NO_TAIL_SPACE, "no enough buffer tail space (dropped)") \
_(TUN_NO_PROTO, "no tunnel protocol") \
@@ -114,12 +114,130 @@ typedef struct
i16 current_data;
i16 current_length;
u16 hdr_sz;
+ vlib_buffer_t *lb;
+ u32 free_buffer_index;
+ u8 icv_removed;
} esp_decrypt_packet_data_t;
-STATIC_ASSERT_SIZEOF (esp_decrypt_packet_data_t, 3 * sizeof (u64));
+STATIC_ASSERT_SIZEOF (esp_decrypt_packet_data_t, 5 * sizeof (u64));
#define ESP_ENCRYPT_PD_F_FD_TRANSPORT (1 << 2)
+static_always_inline void
+esp_process_ops (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vnet_crypto_op_t * ops, vlib_buffer_t * b[], u16 * nexts,
+ int e)
+{
+ vnet_crypto_op_t *op = ops;
+ u32 n_fail, n_ops = vec_len (ops);
+
+ if (n_ops == 0)
+ return;
+
+ n_fail = n_ops - vnet_crypto_process_ops (vm, op, n_ops);
+
+ while (n_fail)
+ {
+ ASSERT (op - ops < n_ops);
+ if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
+ {
+ u32 err, bi = op->user_data;
+ if (op->status == VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC)
+ err = e;
+ else
+ err = ESP_DECRYPT_ERROR_CRYPTO_ENGINE_ERROR;
+ b[bi]->error = node->errors[err];
+ nexts[bi] = ESP_DECRYPT_NEXT_DROP;
+ n_fail--;
+ }
+ op++;
+ }
+}
+
+static_always_inline void
+esp_process_chained_ops (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vnet_crypto_op_t * ops, vlib_buffer_t * b[],
+ u16 * nexts, vnet_crypto_op_chunk_t * chunks, int e)
+{
+
+ vnet_crypto_op_t *op = ops;
+ u32 n_fail, n_ops = vec_len (ops);
+
+ if (n_ops == 0)
+ return;
+
+ n_fail = n_ops - vnet_crypto_process_chained_ops (vm, op, chunks, n_ops);
+
+ while (n_fail)
+ {
+ ASSERT (op - ops < n_ops);
+ if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
+ {
+ u32 err, bi = op->user_data;
+ if (op->status == VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC)
+ err = e;
+ else
+ err = ESP_DECRYPT_ERROR_CRYPTO_ENGINE_ERROR;
+ b[bi]->error = node->errors[err];
+ nexts[bi] = ESP_DECRYPT_NEXT_DROP;
+ n_fail--;
+ }
+ op++;
+ }
+}
+
+always_inline void
+esp_remove_tail (vlib_main_t * vm, vlib_buffer_t * b, vlib_buffer_t * last,
+ u16 tail)
+{
+ vlib_buffer_t *before_last = b;
+
+ if (last->current_length > tail)
+ {
+ last->current_length -= tail;
+ return;
+ }
+ ASSERT (b->flags & VLIB_BUFFER_NEXT_PRESENT);
+
+ while (b->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ before_last = b;
+ b = vlib_get_buffer (vm, b->next_buffer);
+ }
+ before_last->current_length -= tail - last->current_length;
+ vlib_buffer_free_one (vm, before_last->next_buffer);
+ before_last->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
+}
+
+/* ICV is splitted in last two buffers so move it to the last buffer and
+ return pointer to it */
+static_always_inline u8 *
+esp_move_icv (vlib_main_t * vm, vlib_buffer_t * first,
+ esp_decrypt_packet_data_t * pd, u16 icv_sz)
+{
+ vlib_buffer_t *before_last, *bp;
+ u16 last_sz = pd->lb->current_length;
+ u16 first_sz = icv_sz - last_sz;
+
+ bp = before_last = first;
+ while (bp->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ before_last = bp;
+ bp = vlib_get_buffer (vm, bp->next_buffer);
+ }
+
+ u8 *lb_curr = vlib_buffer_get_current (pd->lb);
+ memmove (lb_curr + first_sz, lb_curr, last_sz);
+ clib_memcpy_fast (lb_curr, vlib_buffer_get_tail (before_last) - first_sz,
+ first_sz);
+ before_last->current_length -= first_sz;
+ pd->lb = before_last;
+ pd->icv_removed = 1;
+ pd->free_buffer_index = before_last->next_buffer;
+ before_last->flags &= ~VLIB_BUFFER_NEXT_PRESENT;
+ return lb_curr;
+}
+
always_inline uword
esp_decrypt_inline (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * from_frame,
@@ -131,7 +249,7 @@ esp_decrypt_inline (vlib_main_t * vm,
u16 len;
ipsec_per_thread_data_t *ptd = vec_elt_at_index (im->ptd, thread_index);
u32 *from = vlib_frame_vector_args (from_frame);
- u32 n, n_left = from_frame->n_vectors;
+ u32 n_left = from_frame->n_vectors;
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
u16 nexts[VLIB_FRAME_SIZE], *next = nexts;
esp_decrypt_packet_data_t pkt_data[VLIB_FRAME_SIZE], *pd = pkt_data;
@@ -139,10 +257,16 @@ esp_decrypt_inline (vlib_main_t * vm,
u32 current_sa_index = ~0, current_sa_bytes = 0, current_sa_pkts = 0;
const u8 esp_sz = sizeof (esp_header_t);
ipsec_sa_t *sa0 = 0;
+ vnet_crypto_op_chunk_t *ch;
+ vnet_crypto_op_t **crypto_ops = &ptd->crypto_ops;
+ vnet_crypto_op_t **integ_ops = &ptd->integ_ops;
vlib_get_buffers (vm, from, b, n_left);
vec_reset_length (ptd->crypto_ops);
vec_reset_length (ptd->integ_ops);
+ vec_reset_length (ptd->chained_crypto_ops);
+ vec_reset_length (ptd->chained_integ_ops);
+ vec_reset_length (ptd->chunks);
clib_memset_u16 (nexts, -1, n_left);
while (n_left > 0)
@@ -159,9 +283,10 @@ esp_decrypt_inline (vlib_main_t * vm,
CLIB_PREFETCH (p, CLIB_CACHE_LINE_BYTES, LOAD);
}
- if (vlib_buffer_chain_linearize (vm, b[0]) != 1)
+ u32 n_bufs = vlib_buffer_chain_linearize (vm, b[0]);
+ if (n_bufs == 0)
{
- b[0]->error = node->errors[ESP_DECRYPT_ERROR_CHAINED_BUFFER];
+ b[0]->error = node->errors[ESP_DECRYPT_ERROR_NO_BUFFERS];
next[0] = ESP_DECRYPT_NEXT_DROP;
goto next;
}
@@ -205,10 +330,26 @@ esp_decrypt_inline (vlib_main_t * vm,
pd->hdr_sz = pd->current_data - vnet_buffer (b[0])->l3_hdr_offset;
payload = b[0]->data + pd->current_data;
pd->seq = clib_host_to_net_u32 (((esp_header_t *) payload)->seq);
+ pd->free_buffer_index = 0;
+ pd->icv_removed = 0;
+
+ pd->lb = b[0];
+ if (n_bufs > 1)
+ {
+ /* find last buffer in the chain */
+ while (pd->lb->flags & VLIB_BUFFER_NEXT_PRESENT)
+ pd->lb = vlib_get_buffer (vm, pd->lb->next_buffer);
+
+ crypto_ops = &ptd->chained_crypto_ops;
+ integ_ops = &ptd->chained_integ_ops;
+ }
+ pd->current_length = b[0]->current_length;
/* we need 4 extra bytes for HMAC calculation when ESN are used */
- if (ipsec_sa_is_set_USE_ESN (sa0) && pd->icv_sz &&
- (pd->current_data + pd->current_length + 4 > buffer_data_size))
+ /* Chained buffers can process ESN as a separate chunk */
+ if (pd->lb == b[0] && ipsec_sa_is_set_USE_ESN (sa0) && cpd.icv_sz &&
+ (pd->lb->current_data + pd->lb->current_length + 4
+ > buffer_data_size))
{
b[0]->error = node->errors[ESP_DECRYPT_ERROR_NO_TAIL_SPACE];
next[0] = ESP_DECRYPT_NEXT_DROP;
@@ -232,12 +373,12 @@ esp_decrypt_inline (vlib_main_t * vm,
len = pd->current_length - cpd.icv_sz;
current_sa_pkts += 1;
- current_sa_bytes += pd->current_length;
+ current_sa_bytes += vlib_buffer_length_in_chain (vm, b[0]);
if (PREDICT_TRUE (sa0->integ_op_id != VNET_CRYPTO_OP_NONE))
{
vnet_crypto_op_t *op;
- vec_add2_aligned (ptd->integ_ops, op, 1, CLIB_CACHE_LINE_BYTES);
+ vec_add2_aligned (integ_ops[0], op, 1, CLIB_CACHE_LINE_BYTES);
vnet_crypto_op_init (op, sa0->integ_op_id);
op->key_index = sa0->integ_key_index;
@@ -247,7 +388,100 @@ esp_decrypt_inline (vlib_main_t * vm,
op->digest = payload + len;
op->digest_len = cpd.icv_sz;
op->len = len;
- if (ipsec_sa_is_set_USE_ESN (sa0))
+
+ if (pd->lb != b[0])
+ {
+ /* buffer is chained */
+ vlib_buffer_t *cb = b[0];
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (ptd->chunks);
+
+ if (pd->lb->current_length < cpd.icv_sz)
+ op->digest = esp_move_icv (vm, b[0], pd, cpd.icv_sz);
+ else
+ op->digest = vlib_buffer_get_tail (pd->lb) - cpd.icv_sz;
+
+ vec_add2 (ptd->chunks, ch, 1);
+ ch->len = pd->current_length;
+ ch->src = payload;
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ op->n_chunks = 1;
+ while (1)
+ {
+ vec_add2 (ptd->chunks, ch, 1);
+ op->n_chunks += 1;
+ ch->src = vlib_buffer_get_current (cb);
+ if (pd->lb == cb)
+ {
+ if (pd->icv_removed)
+ ch->len = cb->current_length;
+ else
+ ch->len = cb->current_length - cpd.icv_sz;
+ if (ipsec_sa_is_set_USE_ESN (sa0))
+ {
+ u32 seq_hi = clib_host_to_net_u32 (sa0->seq_hi);
+ u8 tmp[ESP_MAX_ICV_SIZE], sz = sizeof (sa0->seq_hi);
+ u8 *esn;
+ vlib_buffer_t *tmp_b;
+ u16 space_left = vlib_buffer_space_left_at_end
+ (vm, pd->lb);
+ if (space_left < sz)
+ {
+ if (pd->icv_removed)
+ {
+ /* use pre-data area from the last bufer
+ that was removed from the chain */
+ tmp_b =
+ vlib_get_buffer (vm,
+ pd->free_buffer_index);
+ esn = tmp_b->data - sz;
+ }
+ else
+ {
+ /* no space, need to allocate new buffer */
+ u32 tmp_bi = 0;
+ vlib_buffer_alloc (vm, &tmp_bi, 1);
+ tmp_b = vlib_get_buffer (vm, tmp_bi);
+ esn = tmp_b->data;
+ pd->free_buffer_index = tmp_bi;
+ }
+ clib_memcpy_fast (esn, &seq_hi, sz);
+
+ vec_add2 (ptd->chunks, ch, 1);
+ op->n_chunks += 1;
+ ch->src = esn;
+ ch->len = sz;
+ }
+ else
+ {
+ if (pd->icv_removed)
+ {
+ clib_memcpy_fast (vlib_buffer_get_tail
+ (pd->lb), &seq_hi, sz);
+ }
+ else
+ {
+ clib_memcpy_fast (tmp, op->digest,
+ ESP_MAX_ICV_SIZE);
+ clib_memcpy_fast (op->digest, &seq_hi, sz);
+ clib_memcpy_fast (op->digest + sz, tmp,
+ ESP_MAX_ICV_SIZE);
+ op->digest += sz;
+ }
+ ch->len += sz;
+ }
+ }
+ }
+ else
+ ch->len = cb->current_length;
+
+ if (!(cb->flags & VLIB_BUFFER_NEXT_PRESENT))
+ break;
+
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ }
+ }
+ else if (ipsec_sa_is_set_USE_ESN (sa0))
{
/* shift ICV by 4 bytes to insert ESN */
u32 seq_hi = clib_host_to_net_u32 (sa0->seq_hi);
@@ -263,10 +497,10 @@ esp_decrypt_inline (vlib_main_t * vm,
payload += esp_sz;
len -= esp_sz;
- if (sa0->crypto_enc_op_id != VNET_CRYPTO_OP_NONE)
+ if (sa0->crypto_dec_op_id != VNET_CRYPTO_OP_NONE)
{
vnet_crypto_op_t *op;
- vec_add2_aligned (ptd->crypto_ops, op, 1, CLIB_CACHE_LINE_BYTES);
+ vec_add2_aligned (crypto_ops[0], op, 1, CLIB_CACHE_LINE_BYTES);
vnet_crypto_op_init (op, sa0->crypto_dec_op_id);
op->key_index = sa0->crypto_key_index;
op->iv = payload;
@@ -303,6 +537,61 @@ esp_decrypt_inline (vlib_main_t * vm,
op->src = op->dst = payload += cpd.iv_sz;
op->len = len - cpd.iv_sz;
op->user_data = b - bufs;
+
+ if (pd->lb != b[0])
+ {
+ /* buffer is chained */
+ vlib_buffer_t *cb = b[0];
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (ptd->chunks);
+ vec_add2 (ptd->chunks, ch, 1);
+ ch->len = len - cpd.iv_sz + cpd.icv_sz;
+ ch->src = ch->dst = payload;
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ op->n_chunks = 1;
+
+ while (1)
+ {
+ vec_add2 (ptd->chunks, ch, 1);
+ op->n_chunks += 1;
+ ch->src = ch->dst = vlib_buffer_get_current (cb);
+ if (pd->lb == cb)
+ {
+ if (ipsec_sa_is_set_IS_AEAD (sa0))
+ {
+ if (pd->lb->current_length < cpd.icv_sz)
+ {
+ op->tag =
+ esp_move_icv (vm, b[0], pd, cpd.icv_sz);
+
+ /* this chunk does not contain crypto data */
+ op->n_chunks -= 1;
+
+ /* and fix previous chunk's length as it might have
+ been changed */
+ ASSERT (op->n_chunks > 0);
+ ch[-1].len = pd->lb->current_length;
+ break;
+ }
+ else
+ op->tag =
+ vlib_buffer_get_tail (pd->lb) - cpd.icv_sz;
+ }
+
+ if (pd->icv_removed)
+ ch->len = cb->current_length;
+ else
+ ch->len = cb->current_length - cpd.icv_sz;
+ }
+ else
+ ch->len = cb->current_length;
+
+ if (!(cb->flags & VLIB_BUFFER_NEXT_PRESENT))
+ break;
+
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ }
+ }
}
/* next */
@@ -318,52 +607,15 @@ esp_decrypt_inline (vlib_main_t * vm,
current_sa_index, current_sa_pkts,
current_sa_bytes);
- if ((n = vec_len (ptd->integ_ops)))
- {
- vnet_crypto_op_t *op = ptd->integ_ops;
- n -= vnet_crypto_process_ops (vm, op, n);
- while (n)
- {
- ASSERT (op - ptd->integ_ops < vec_len (ptd->integ_ops));
- if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
- {
- u32 err, bi = op->user_data;
- if (op->status == VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC)
- err = ESP_DECRYPT_ERROR_INTEG_ERROR;
- else
- err = ESP_DECRYPT_ERROR_CRYPTO_ENGINE_ERROR;
- bufs[bi]->error = node->errors[err];
- nexts[bi] = ESP_DECRYPT_NEXT_DROP;
- n--;
- }
- op++;
- }
- }
- if ((n = vec_len (ptd->crypto_ops)))
- {
- vnet_crypto_op_t *op = ptd->crypto_ops;
- n -= vnet_crypto_process_ops (vm, op, n);
- while (n)
- {
- ASSERT (op - ptd->crypto_ops < vec_len (ptd->crypto_ops));
- if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
- {
- u32 err, bi;
-
- bi = op->user_data;
-
- if (op->status == VNET_CRYPTO_OP_STATUS_FAIL_BAD_HMAC)
- err = ESP_DECRYPT_ERROR_DECRYPTION_FAILED;
- else
- err = ESP_DECRYPT_ERROR_CRYPTO_ENGINE_ERROR;
+ esp_process_ops (vm, node, ptd->integ_ops, bufs, nexts,
+ ESP_DECRYPT_ERROR_INTEG_ERROR);
+ esp_process_chained_ops (vm, node, ptd->chained_integ_ops, bufs, nexts,
+ ptd->chunks, ESP_DECRYPT_ERROR_INTEG_ERROR);
- bufs[bi]->error = node->errors[err];
- nexts[bi] = ESP_DECRYPT_NEXT_DROP;
- n--;
- }
- op++;
- }
- }
+ esp_process_ops (vm, node, ptd->crypto_ops, bufs, nexts,
+ ESP_DECRYPT_ERROR_DECRYPTION_FAILED);
+ esp_process_chained_ops (vm, node, ptd->chained_crypto_ops, bufs, nexts,
+ ptd->chunks, ESP_DECRYPT_ERROR_DECRYPTION_FAILED);
/* Post decryption ronud - adjust packet data start and length and next
node */
@@ -430,11 +682,51 @@ esp_decrypt_inline (vlib_main_t * vm,
ipsec_sa_anti_replay_advance (sa0, pd->seq);
- esp_footer_t *f = (esp_footer_t *) (b[0]->data + pd->current_data +
- pd->current_length - sizeof (*f) -
- pd->icv_sz);
+ u8 pad_length = 0, next_header = 0;
+ u16 icv_sz = pd->icv_removed ? 0 : pd->icv_sz;
+
+ if (pd->free_buffer_index)
+ vlib_buffer_free_one (vm, pd->free_buffer_index);
+
+ if (pd->lb->current_length < sizeof (esp_footer_t) + icv_sz)
+ {
+ /* esp footer is either splitted in two buffers or in the before
+ * last buffer */
+
+ vlib_buffer_t *before_last = b[0], *bp = b[0];
+ while (bp->flags & VLIB_BUFFER_NEXT_PRESENT)
+ {
+ before_last = bp;
+ bp = vlib_get_buffer (vm, bp->next_buffer);
+ }
+ u8 *bt = vlib_buffer_get_tail (before_last);
+
+ if (pd->lb->current_length == icv_sz)
+ {
+ esp_footer_t *f = (esp_footer_t *) (bt - sizeof (*f));
+ pad_length = f->pad_length;
+ next_header = f->next_header;
+ }
+ else
+ {
+ pad_length = (bt - 1)[0];
+ next_header = ((u8 *) vlib_buffer_get_current (pd->lb))[0];
+ }
+ }
+ else
+ {
+ esp_footer_t *f =
+ (esp_footer_t *) (pd->lb->data + pd->lb->current_data +
+ pd->lb->current_length - sizeof (esp_footer_t) -
+ icv_sz);
+ pad_length = f->pad_length;
+ next_header = f->next_header;
+ }
+
u16 adv = pd->iv_sz + esp_sz;
- u16 tail = sizeof (esp_footer_t) + f->pad_length + pd->icv_sz;
+ u16 tail = sizeof (esp_footer_t) + pad_length + icv_sz;
+ u16 tail_orig = sizeof (esp_footer_t) + pad_length + pd->icv_sz;
+ b[0]->flags &= ~VLIB_BUFFER_TOTAL_LENGTH_VALID;
if ((pd->flags & tun_flags) == 0 && !is_tun) /* transport mode */
{
@@ -450,15 +742,16 @@ esp_decrypt_inline (vlib_main_t * vm,
clib_memcpy_le64 (ip, old_ip, ip_hdr_sz);
b[0]->current_data = pd->current_data + adv - ip_hdr_sz;
- b[0]->current_length = pd->current_length + ip_hdr_sz - tail - adv;
+ b[0]->current_length = pd->current_length + ip_hdr_sz - adv;
+ esp_remove_tail (vm, b[0], pd->lb, tail);
if (is_ip6)
{
ip6_header_t *ip6 = (ip6_header_t *) ip;
u16 len = clib_net_to_host_u16 (ip6->payload_length);
- len -= adv + tail;
+ len -= adv + tail_orig;
ip6->payload_length = clib_host_to_net_u16 (len);
- ip6->protocol = f->next_header;
+ ip6->protocol = next_header;
next[0] = ESP_DECRYPT_NEXT_IP6_INPUT;
}
else
@@ -466,34 +759,36 @@ esp_decrypt_inline (vlib_main_t * vm,
ip4_header_t *ip4 = (ip4_header_t *) ip;
ip_csum_t sum = ip4->checksum;
u16 len = clib_net_to_host_u16 (ip4->length);
- len = clib_host_to_net_u16 (len - adv - tail - udp_sz);
- sum = ip_csum_update (sum, ip4->protocol, f->next_header,
+ len = clib_host_to_net_u16 (len - adv - tail_orig - udp_sz);
+ sum = ip_csum_update (sum, ip4->protocol, next_header,
ip4_header_t, protocol);
sum = ip_csum_update (sum, ip4->length, len,
ip4_header_t, length);
ip4->checksum = ip_csum_fold (sum);
- ip4->protocol = f->next_header;
+ ip4->protocol = next_header;
ip4->length = len;
next[0] = ESP_DECRYPT_NEXT_IP4_INPUT;
}
}
else
{
- if (PREDICT_TRUE (f->next_header == IP_PROTOCOL_IP_IN_IP))
+ if (PREDICT_TRUE (next_header == IP_PROTOCOL_IP_IN_IP))
{
next[0] = ESP_DECRYPT_NEXT_IP4_INPUT;
b[0]->current_data = pd->current_data + adv;
- b[0]->current_length = pd->current_length - adv - tail;
+ b[0]->current_length = pd->current_length - adv;
+ esp_remove_tail (vm, b[0], pd->lb, tail);
}
- else if (f->next_header == IP_PROTOCOL_IPV6)
+ else if (next_header == IP_PROTOCOL_IPV6)
{
next[0] = ESP_DECRYPT_NEXT_IP6_INPUT;
b[0]->current_data = pd->current_data + adv;
- b[0]->current_length = pd->current_length - adv - tail;
+ b[0]->current_length = pd->current_length - adv;
+ esp_remove_tail (vm, b[0], pd->lb, tail);
}
else
{
- if (is_tun && f->next_header == IP_PROTOCOL_GRE)
+ if (is_tun && next_header == IP_PROTOCOL_GRE)
{
gre_header_t *gre;
@@ -555,7 +850,7 @@ esp_decrypt_inline (vlib_main_t * vm,
itp = ipsec_tun_protect_get
(vnet_buffer (b[0])->ipsec.protect_index);
- if (PREDICT_TRUE (f->next_header == IP_PROTOCOL_IP_IN_IP))
+ if (PREDICT_TRUE (next_header == IP_PROTOCOL_IP_IN_IP))
{
const ip4_header_t *ip4;
@@ -571,7 +866,7 @@ esp_decrypt_inline (vlib_main_t * vm,
node->errors[ESP_DECRYPT_ERROR_TUN_NO_PROTO];
}
}
- else if (f->next_header == IP_PROTOCOL_IPV6)
+ else if (next_header == IP_PROTOCOL_IPV6)
{
const ip6_header_t *ip6;
@@ -618,7 +913,6 @@ esp_decrypt_inline (vlib_main_t * vm,
vlib_buffer_enqueue_to_next (vm, node, from, nexts, n_left);
- b = bufs;
return n_left;
}
diff --git a/src/vnet/ipsec/esp_encrypt.c b/src/vnet/ipsec/esp_encrypt.c
index 3c2fdf4ec3c..2c4da5dafa8 100644
--- a/src/vnet/ipsec/esp_encrypt.c
+++ b/src/vnet/ipsec/esp_encrypt.c
@@ -42,7 +42,7 @@ typedef enum
_(RX_PKTS, "ESP pkts received") \
_(SEQ_CYCLED, "sequence number cycled (packet dropped)") \
_(CRYPTO_ENGINE_ERROR, "crypto engine error (packet dropped)") \
- _(CHAINED_BUFFER, "chained buffers (packet dropped)") \
+ _(NO_BUFFERS, "no buffers (packet dropped)") \
_(NO_TRAILER_SPACE, "no trailer space (packet dropped)")
typedef enum
@@ -92,21 +92,23 @@ format_esp_encrypt_trace (u8 * s, va_list * args)
static_always_inline u8 *
esp_add_footer_and_icv (vlib_buffer_t * b, u8 block_size, u8 icv_sz,
u16 * next, vlib_node_runtime_t * node,
- u16 buffer_data_size)
+ u16 buffer_data_size, uword total_len)
{
static const u8 pad_data[ESP_MAX_BLOCK_SIZE] = {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x00, 0x00,
};
- u16 min_length = b->current_length + sizeof (esp_footer_t);
+ u16 min_length = total_len + sizeof (esp_footer_t);
u16 new_length = round_pow2 (min_length, block_size);
u8 pad_bytes = new_length - min_length;
esp_footer_t *f = (esp_footer_t *) (vlib_buffer_get_current (b) +
- new_length - sizeof (esp_footer_t));
+ b->current_length + pad_bytes);
+ u16 tail_sz = sizeof (esp_footer_t) + pad_bytes + icv_sz;
- if (b->current_data + new_length + icv_sz > buffer_data_size)
+ if (b->current_data + tail_sz > buffer_data_size)
{
+ // TODO alloc new buffer
b->error = node->errors[ESP_ENCRYPT_ERROR_NO_TRAILER_SPACE];
next[0] = ESP_ENCRYPT_NEXT_DROP;
return 0;
@@ -120,7 +122,7 @@ esp_add_footer_and_icv (vlib_buffer_t * b, u8 block_size, u8 icv_sz,
}
f->pad_length = pad_bytes;
- b->current_length = new_length + icv_sz;
+ b->current_length += tail_sz;
return &f->next_header;
}
@@ -204,6 +206,34 @@ esp_get_ip6_hdr_len (ip6_header_t * ip6, ip6_ext_header_t ** ext_hdr)
}
static_always_inline void
+esp_process_chained_ops (vlib_main_t * vm, vlib_node_runtime_t * node,
+ vnet_crypto_op_t * ops, vlib_buffer_t * b[],
+ u16 * nexts, vnet_crypto_op_chunk_t * chunks)
+{
+ u32 n_fail, n_ops = vec_len (ops);
+ vnet_crypto_op_t *op = ops;
+
+ if (n_ops == 0)
+ return;
+
+ n_fail = n_ops - vnet_crypto_process_chained_ops (vm, op, chunks, n_ops);
+
+ while (n_fail)
+ {
+ ASSERT (op - ops < n_ops);
+
+ if (op->status != VNET_CRYPTO_OP_STATUS_COMPLETED)
+ {
+ u32 bi = op->user_data;
+ b[bi]->error = node->errors[ESP_ENCRYPT_ERROR_CRYPTO_ENGINE_ERROR];
+ nexts[bi] = ESP_ENCRYPT_NEXT_DROP;
+ n_fail--;
+ }
+ op++;
+ }
+}
+
+static_always_inline void
esp_process_ops (vlib_main_t * vm, vlib_node_runtime_t * node,
vnet_crypto_op_t * ops, vlib_buffer_t * b[], u16 * nexts)
{
@@ -255,10 +285,17 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u32 current_sa_bytes = 0, spi = 0;
u8 block_sz = 0, iv_sz = 0, icv_sz = 0;
ipsec_sa_t *sa0 = 0;
+ vnet_crypto_op_chunk_t *ch;
+ vlib_buffer_t *lb;
+ vnet_crypto_op_t **crypto_ops = &ptd->crypto_ops;
+ vnet_crypto_op_t **integ_ops = &ptd->integ_ops;
vlib_get_buffers (vm, from, b, n_left);
vec_reset_length (ptd->crypto_ops);
vec_reset_length (ptd->integ_ops);
+ vec_reset_length (ptd->chained_crypto_ops);
+ vec_reset_length (ptd->chained_integ_ops);
+ vec_reset_length (ptd->chunks);
while (n_left > 0)
{
@@ -266,7 +303,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
dpo_id_t *dpo;
esp_header_t *esp;
u8 *payload, *next_hdr_ptr;
- u16 payload_len;
+ u16 payload_len, payload_len_total, n_bufs;
u32 hdr_len, config_index;
if (n_left > 2)
@@ -329,13 +366,30 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
goto trace;
}
- if (vlib_buffer_chain_linearize (vm, b[0]) != 1)
+ lb = b[0];
+ n_bufs = vlib_buffer_chain_linearize (vm, b[0]);
+ if (n_bufs == 0)
{
- b[0]->error = node->errors[ESP_ENCRYPT_ERROR_CHAINED_BUFFER];
+ b[0]->error = node->errors[ESP_ENCRYPT_ERROR_NO_BUFFERS];
next[0] = ESP_ENCRYPT_NEXT_DROP;
goto trace;
}
+ if (n_bufs > 1)
+ {
+ crypto_ops = &ptd->chained_crypto_ops;
+ integ_ops = &ptd->chained_integ_ops;
+
+ /* find last buffer in the chain */
+ while (lb->flags & VLIB_BUFFER_NEXT_PRESENT)
+ lb = vlib_get_buffer (vm, lb->next_buffer);
+ }
+ else
+ {
+ crypto_ops = &ptd->crypto_ops;
+ integ_ops = &ptd->integ_ops;
+ }
+
if (PREDICT_FALSE (esp_seq_advance (sa0)))
{
b[0]->error = node->errors[ESP_ENCRYPT_ERROR_SEQ_CYCLED];
@@ -349,12 +403,16 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
if (ipsec_sa_is_set_IS_TUNNEL (sa0))
{
payload = vlib_buffer_get_current (b[0]);
- next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz,
+ next_hdr_ptr = esp_add_footer_and_icv (lb, block_sz, icv_sz,
next, node,
- buffer_data_size);
+ buffer_data_size,
+ vlib_buffer_length_in_chain
+ (vm, b[0]));
if (!next_hdr_ptr)
goto trace;
+ b[0]->flags &= ~VLIB_BUFFER_TOTAL_LENGTH_VALID;
payload_len = b[0]->current_length;
+ payload_len_total = vlib_buffer_length_in_chain (vm, b[0]);
/* ESP header */
hdr_len += sizeof (*esp);
@@ -365,7 +423,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
{
hdr_len += sizeof (udp_header_t);
esp_fill_udp_hdr (sa0, (udp_header_t *) (payload - hdr_len),
- payload_len + hdr_len);
+ payload_len_total + hdr_len);
}
/* IP header */
@@ -378,7 +436,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
clib_memcpy_fast (ip6, &sa0->ip6_hdr, len);
*next_hdr_ptr = (is_ip6 ?
IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
- len = payload_len + hdr_len - len;
+ len = payload_len_total + hdr_len - len;
ip6->payload_length = clib_net_to_host_u16 (len);
}
else
@@ -390,7 +448,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
clib_memcpy_fast (ip4, &sa0->ip4_hdr, len);
*next_hdr_ptr = (is_ip6 ?
IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP);
- len = payload_len + hdr_len;
+ len = payload_len_total + hdr_len;
esp_update_ip4_hdr (ip4, len, /* is_transport */ 0, 0);
}
@@ -414,12 +472,17 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_advance (b[0], ip_len);
payload = vlib_buffer_get_current (b[0]);
- next_hdr_ptr = esp_add_footer_and_icv (b[0], block_sz, icv_sz,
+ next_hdr_ptr = esp_add_footer_and_icv (lb, block_sz, icv_sz,
next, node,
- buffer_data_size);
+ buffer_data_size,
+ vlib_buffer_length_in_chain
+ (vm, b[0]));
if (!next_hdr_ptr)
goto trace;
+
+ b[0]->flags &= ~VLIB_BUFFER_TOTAL_LENGTH_VALID;
payload_len = b[0]->current_length;
+ payload_len_total = vlib_buffer_length_in_chain (vm, b[0]);
/* ESP header */
hdr_len += sizeof (*esp);
@@ -463,7 +526,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
ext_hdr->next_hdr = IP_PROTOCOL_IPSEC_ESP;
}
ip6->payload_length =
- clib_host_to_net_u16 (payload_len + hdr_len - l2_len -
+ clib_host_to_net_u16 (payload_len_total + hdr_len - l2_len -
sizeof (ip6_header_t));
}
else
@@ -471,7 +534,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
u16 len;
ip4_header_t *ip4 = (ip4_header_t *) (old_ip_hdr);
*next_hdr_ptr = ip4->protocol;
- len = payload_len + hdr_len - l2_len;
+ len = payload_len_total + hdr_len - l2_len;
if (udp)
{
esp_update_ip4_hdr (ip4, len, /* is_transport */ 1, 1);
@@ -493,8 +556,9 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
if (sa0->crypto_enc_op_id)
{
vnet_crypto_op_t *op;
- vec_add2_aligned (ptd->crypto_ops, op, 1, CLIB_CACHE_LINE_BYTES);
+ vec_add2_aligned (crypto_ops[0], op, 1, CLIB_CACHE_LINE_BYTES);
vnet_crypto_op_init (op, sa0->crypto_enc_op_id);
+
op->src = op->dst = payload;
op->key_index = sa0->crypto_key_index;
op->len = payload_len - icv_sz;
@@ -524,12 +588,42 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
op->iv = payload - iv_sz;
op->flags = VNET_CRYPTO_OP_FLAG_INIT_IV;
}
+
+ if (lb != b[0])
+ {
+ /* is chained */
+ vlib_buffer_t *cb = b[0];
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ op->chunk_index = vec_len (ptd->chunks);
+ op->tag = vlib_buffer_get_tail (lb) - icv_sz;
+ vec_add2 (ptd->chunks, ch, 1);
+ ch->len = payload_len;
+ ch->src = ch->dst = payload;
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ op->n_chunks = 1;
+
+ while (1)
+ {
+ vec_add2 (ptd->chunks, ch, 1);
+ op->n_chunks += 1;
+ if (lb == cb)
+ ch->len = cb->current_length - icv_sz;
+ else
+ ch->len = cb->current_length;
+ ch->src = ch->dst = vlib_buffer_get_current (cb);
+
+ if (!(cb->flags & VLIB_BUFFER_NEXT_PRESENT))
+ break;
+
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ }
+ }
}
if (sa0->integ_op_id)
{
vnet_crypto_op_t *op;
- vec_add2_aligned (ptd->integ_ops, op, 1, CLIB_CACHE_LINE_BYTES);
+ vec_add2_aligned (integ_ops[0], op, 1, CLIB_CACHE_LINE_BYTES);
vnet_crypto_op_init (op, sa0->integ_op_id);
op->src = payload - iv_sz - sizeof (esp_header_t);
op->digest = payload + payload_len - icv_sz;
@@ -537,7 +631,46 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
op->digest_len = icv_sz;
op->len = payload_len - icv_sz + iv_sz + sizeof (esp_header_t);
op->user_data = b - bufs;
- if (ipsec_sa_is_set_USE_ESN (sa0))
+
+ if (lb != b[0])
+ {
+ /* is chained */
+ op->flags |= VNET_CRYPTO_OP_FLAG_CHAINED_BUFFERS;
+ vlib_buffer_t *cb = b[0];
+ op->chunk_index = vec_len (ptd->chunks);
+ op->digest = vlib_buffer_get_tail (lb) - icv_sz;
+ vec_add2 (ptd->chunks, ch, 1);
+ ch->len = payload_len + iv_sz + sizeof (esp_header_t);
+ ch->src = payload - iv_sz - sizeof (esp_header_t);
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ op->n_chunks = 1;
+
+ while (1)
+ {
+ vec_add2 (ptd->chunks, ch, 1);
+ op->n_chunks += 1;
+ if (lb == cb)
+ {
+ ch->len = cb->current_length - icv_sz;
+ if (ipsec_sa_is_set_USE_ESN (sa0))
+ {
+ u32 seq_hi = clib_net_to_host_u32 (sa0->seq_hi);
+ clib_memcpy_fast (op->digest, &seq_hi,
+ sizeof (seq_hi));
+ ch->len += sizeof (seq_hi);
+ }
+ }
+ else
+ ch->len = cb->current_length;
+ ch->src = vlib_buffer_get_current (cb);
+
+ if (!(cb->flags & VLIB_BUFFER_NEXT_PRESENT))
+ break;
+
+ cb = vlib_get_buffer (vm, cb->next_buffer);
+ }
+ }
+ else if (ipsec_sa_is_set_USE_ESN (sa0))
{
u32 seq_hi = clib_net_to_host_u32 (sa0->seq_hi);
clib_memcpy_fast (op->digest, &seq_hi, sizeof (seq_hi));
@@ -548,7 +681,7 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_advance (b[0], 0LL - hdr_len);
current_sa_packets += 1;
- current_sa_bytes += payload_len;
+ current_sa_bytes += payload_len_total;
trace:
if (PREDICT_FALSE (b[0]->flags & VLIB_BUFFER_IS_TRACED))
@@ -572,8 +705,14 @@ esp_encrypt_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_increment_combined_counter (&ipsec_sa_counters, thread_index,
current_sa_index, current_sa_packets,
current_sa_bytes);
+
esp_process_ops (vm, node, ptd->crypto_ops, bufs, nexts);
+ esp_process_chained_ops (vm, node, ptd->chained_crypto_ops, bufs, nexts,
+ ptd->chunks);
+
esp_process_ops (vm, node, ptd->integ_ops, bufs, nexts);
+ esp_process_chained_ops (vm, node, ptd->chained_integ_ops, bufs, nexts,
+ ptd->chunks);
vlib_node_increment_counter (vm, node->node_index,
ESP_ENCRYPT_ERROR_RX_PKTS, frame->n_vectors);
diff --git a/src/vnet/ipsec/ipsec.h b/src/vnet/ipsec/ipsec.h
index 0c3e5778e6d..f1b7dafa9be 100644
--- a/src/vnet/ipsec/ipsec.h
+++ b/src/vnet/ipsec/ipsec.h
@@ -90,8 +90,12 @@ typedef struct
typedef struct
{
+ CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
vnet_crypto_op_t *crypto_ops;
vnet_crypto_op_t *integ_ops;
+ vnet_crypto_op_t *chained_crypto_ops;
+ vnet_crypto_op_t *chained_integ_ops;
+ vnet_crypto_op_chunk_t *chunks;
} ipsec_per_thread_data_t;
typedef struct
diff --git a/test/template_ipsec.py b/test/template_ipsec.py
index 2eeb63c16d1..56f4b456468 100644
--- a/test/template_ipsec.py
+++ b/test/template_ipsec.py
@@ -556,7 +556,7 @@ class IpsecTra4(object):
p.scapy_tra_sa.seq_num = 351
p.vpp_tra_sa.seq_num = 351
- def verify_tra_basic4(self, count=1):
+ def verify_tra_basic4(self, count=1, payload_size=54):
""" ipsec v4 transport basic test """
self.vapi.cli("clear errors")
self.vapi.cli("clear ipsec sa")
@@ -565,7 +565,8 @@ class IpsecTra4(object):
send_pkts = self.gen_encrypt_pkts(p.scapy_tra_sa, self.tra_if,
src=self.tra_if.remote_ip4,
dst=self.tra_if.local_ip4,
- count=count)
+ count=count,
+ payload_size=payload_size)
recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
self.tra_if)
for rx in recv_pkts:
@@ -611,14 +612,16 @@ class IpsecTra4Tests(IpsecTra4):
class IpsecTra6(object):
""" verify methods for Transport v6 """
- def verify_tra_basic6(self, count=1):
+ def verify_tra_basic6(self, count=1, payload_size=54):
self.vapi.cli("clear errors")
+ self.vapi.cli("clear ipsec sa")
try:
p = self.params[socket.AF_INET6]
send_pkts = self.gen_encrypt_pkts6(p.scapy_tra_sa, self.tra_if,
src=self.tra_if.remote_ip6,
dst=self.tra_if.local_ip6,
- count=count)
+ count=count,
+ payload_size=payload_size)
recv_pkts = self.send_and_expect(self.tra_if, send_pkts,
self.tra_if)
for rx in recv_pkts:
@@ -834,7 +837,8 @@ class IpsecTun4(object):
send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
src=p.remote_tun_if_host,
dst=self.pg1.remote_ip4,
- count=count)
+ count=count,
+ payload_size=payload_size)
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
self.verify_decrypted(p, recv_pkts)
@@ -857,41 +861,6 @@ class IpsecTun4(object):
self.logger.info(self.vapi.ppcli("show ipsec sa 4"))
self.verify_counters4(p, count, n_rx)
- """ verify methods for Transport v4 """
- def verify_tun_44_bad_packet_sizes(self, p):
- # with a buffer size of 2048, 1989 bytes of payload
- # means there isn't space to insert the ESP header
- N_PKTS = 63
- for p_siz in [1989, 8500]:
- send_pkts = self.gen_encrypt_pkts(p.scapy_tun_sa, self.tun_if,
- src=p.remote_tun_if_host,
- dst=self.pg1.remote_ip4,
- count=N_PKTS,
- payload_size=p_siz)
- self.send_and_assert_no_replies(self.tun_if, send_pkts)
- send_pkts = self.gen_pkts(self.pg1, src=self.pg1.remote_ip4,
- dst=p.remote_tun_if_host, count=N_PKTS,
- payload_size=p_siz)
- self.send_and_assert_no_replies(self.pg1, send_pkts,
- self.tun_if)
-
- # both large packets on decrpyt count against chained buffers
- # the 9000 bytes one does on encrypt
- self.assertEqual(2 * N_PKTS,
- self.statistics.get_err_counter(
- '/err/%s/chained buffers (packet dropped)' %
- self.tun4_decrypt_node_name))
- self.assertEqual(N_PKTS,
- self.statistics.get_err_counter(
- '/err/%s/chained buffers (packet dropped)' %
- self.tun4_encrypt_node_name))
-
- # on encrypt the 1989 size is no trailer space
- self.assertEqual(N_PKTS,
- self.statistics.get_err_counter(
- '/err/%s/no trailer space (packet dropped)' %
- self.tun4_encrypt_node_name))
-
def verify_tun_reass_44(self, p):
self.vapi.cli("clear errors")
self.vapi.ip_reassembly_enable_disable(
@@ -996,12 +965,6 @@ class IpsecTun4Tests(IpsecTun4):
self.verify_tun_44(self.params[socket.AF_INET], count=127)
-class IpsecTunEsp4Tests(IpsecTun4):
- def test_tun_bad_packet_sizes(self):
- """ ipsec v4 tunnel bad packet size """
- self.verify_tun_44_bad_packet_sizes(self.params[socket.AF_INET])
-
-
class IpsecTun6(object):
""" verify methods for Tunnel v6 """
def verify_counters6(self, p_in, p_out, count, worker=None):
@@ -1064,7 +1027,8 @@ class IpsecTun6(object):
send_pkts = self.gen_encrypt_pkts6(p_in.scapy_tun_sa, self.tun_if,
src=p_in.remote_tun_if_host,
dst=self.pg1.remote_ip6,
- count=count)
+ count=count,
+ payload_size=payload_size)
recv_pkts = self.send_and_expect(self.tun_if, send_pkts, self.pg1)
self.verify_decrypted6(p_in, recv_pkts)
diff --git a/test/test_ipsec_esp.py b/test/test_ipsec_esp.py
index 60e5c93ed65..5b057e750cc 100644
--- a/test/test_ipsec_esp.py
+++ b/test/test_ipsec_esp.py
@@ -10,7 +10,7 @@ from template_ipsec import IpsecTra46Tests, IpsecTun46Tests, TemplateIpsec, \
config_tun_params, IPsecIPv4Params, IPsecIPv6Params, \
IpsecTra4, IpsecTun4, IpsecTra6, IpsecTun6, \
IpsecTun6HandoffTests, IpsecTun4HandoffTests, \
- IpsecTra6ExtTests, IpsecTunEsp4Tests
+ IpsecTra6ExtTests
from vpp_ipsec import VppIpsecSpd, VppIpsecSpdEntry, VppIpsecSA,\
VppIpsecSpdItfBinding
from vpp_ip_route import VppIpRoute, VppRoutePath
@@ -18,6 +18,7 @@ from vpp_ip import DpoProto
from vpp_papi import VppEnum
NUM_PKTS = 67
+engines_supporting_chain_bufs = ["openssl"]
class ConfigIpsecESP(TemplateIpsec):
@@ -288,8 +289,7 @@ class TemplateIpsecEsp(ConfigIpsecESP):
class TestIpsecEsp1(TemplateIpsecEsp, IpsecTra46Tests,
- IpsecTun46Tests, IpsecTunEsp4Tests,
- IpsecTra6ExtTests):
+ IpsecTun46Tests, IpsecTra6ExtTests):
""" Ipsec ESP - TUN & TRA tests """
pass
@@ -469,7 +469,7 @@ class RunTestIpsecEspAll(ConfigIpsecESP,
def run_test(self):
self.run_a_test(self.engine, self.flag, self.algo)
- def run_a_test(self, engine, flag, algo):
+ def run_a_test(self, engine, flag, algo, payload_size=None):
self.vapi.cli("set crypto handler all %s" % engine)
self.ipv4_params = IPsecIPv4Params()
@@ -508,6 +508,21 @@ class RunTestIpsecEspAll(ConfigIpsecESP,
self.verify_tun_44(self.params[socket.AF_INET],
count=NUM_PKTS)
+ LARGE_PKT_SZ = [
+ 4010, # ICV ends up splitted accross 2 buffers in esp_decrypt
+ # for transport4; transport6 takes normal path
+
+ 4020, # same as above but tra4 and tra6 are switched
+ ]
+ if self.engine in engines_supporting_chain_bufs:
+ for sz in LARGE_PKT_SZ:
+ self.verify_tra_basic4(count=NUM_PKTS, payload_size=sz)
+ self.verify_tra_basic6(count=NUM_PKTS, payload_size=sz)
+ self.verify_tun_66(self.params[socket.AF_INET6],
+ count=NUM_PKTS, payload_size=sz)
+ self.verify_tun_44(self.params[socket.AF_INET],
+ count=NUM_PKTS, payload_size=sz)
+
#
# remove the SPDs, SAs, etc
#