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examples/l2fwd-crypto: add AEAD parameters

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Since there is a new operation type (AEAD), add parameters
for this in the application.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Declan Doherty <declan.doherty@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
This commit is contained in:
Pablo de Lara 2017-07-02 06:41:25 +01:00
parent 501e9c226a
commit 2661f4fbe9
2 changed files with 358 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
doc/guides/sample_app_ug/l2_forward_crypto.rst
View File

@ -112,6 +112,8 @@ where,
Hash->Cipher (HASH_CIPHER), Cipher (CIPHER_ONLY), Hash (HASH_ONLY)
or AEAD (AEAD)
(default is Cipher->Hash)
* cipher_algo: select the ciphering algorithm (default is aes-cbc)
@ -154,6 +156,26 @@ where,
Note that if --auth_iv is used, this will be ignored.
* aead_algo: select the AEAD algorithm
* aead_op: select the AEAD operation to perform: ENCRYPT or DECRYPT
(default is ENCRYPT)
* aead_key: set the AEAD key to be used. Bytes has to be separated with ":"
* aead_key_random_size: set the size of the AEAD key,
which will be generated randomly.
Note that if --aead_key is used, this will be ignored.
* aead_iv: set the AEAD IV to be used. Bytes has to be separated with ":"
* aead_iv_random_size: set the size of the AEAD IV, which will be generated randomly.
Note that if --aead_iv is used, this will be ignored.
* aad: set the AAD to be used. Bytes has to be separated with ":"
* aad_random_size: set the size of the AAD, which will be generated randomly.

390
examples/l2fwd-crypto/main.c
View File

@ -130,7 +130,8 @@ enum l2fwd_crypto_xform_chain {
L2FWD_CRYPTO_CIPHER_HASH,
L2FWD_CRYPTO_HASH_CIPHER,
L2FWD_CRYPTO_CIPHER_ONLY,
L2FWD_CRYPTO_HASH_ONLY
L2FWD_CRYPTO_HASH_ONLY,
L2FWD_CRYPTO_AEAD
};
struct l2fwd_key {
@ -172,6 +173,14 @@ struct l2fwd_crypto_options {
unsigned int auth_iv_param;
int auth_iv_random_size;
struct rte_crypto_sym_xform aead_xform;
unsigned int aead_key_param;
int aead_key_random_size;
struct l2fwd_iv aead_iv;
unsigned int aead_iv_param;
int aead_iv_random_size;
struct l2fwd_key aad;
unsigned aad_param;
int aad_random_size;
@ -194,15 +203,18 @@ struct l2fwd_crypto_params {
struct l2fwd_iv cipher_iv;
struct l2fwd_iv auth_iv;
struct l2fwd_iv aead_iv;
struct l2fwd_key aad;
struct rte_cryptodev_sym_session *session;
uint8_t do_cipher;
uint8_t do_hash;
uint8_t do_aead;
uint8_t hash_verify;
enum rte_crypto_cipher_algorithm cipher_algo;
enum rte_crypto_auth_algorithm auth_algo;
enum rte_crypto_aead_algorithm aead_algo;
};
/** lcore configuration */
@ -492,14 +504,6 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
op->sym->auth.data.offset = ipdata_offset;
op->sym->auth.data.length = data_len;
}
if (cparams->aad.length) {
op->sym->auth.aad.data = cparams->aad.data;
op->sym->auth.aad.phys_addr = cparams->aad.phys_addr;
} else {
op->sym->auth.aad.data = NULL;
op->sym->auth.aad.phys_addr = 0;
}
}
if (cparams->do_cipher) {
@ -521,6 +525,33 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
}
}
if (cparams->do_aead) {
uint8_t *iv_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
IV_OFFSET);
/* Copy IV at the end of the crypto operation */
rte_memcpy(iv_ptr, cparams->aead_iv.data, cparams->aead_iv.length);
op->sym->aead.data.offset = ipdata_offset;
op->sym->aead.data.length = data_len;
if (!cparams->hash_verify) {
/* Append space for digest to end of packet */
op->sym->aead.digest.data = (uint8_t *)rte_pktmbuf_append(m,
cparams->digest_length);
} else {
op->sym->aead.digest.data = rte_pktmbuf_mtod(m,
uint8_t *) + ipdata_offset + data_len;
}
op->sym->auth.digest.phys_addr = rte_pktmbuf_mtophys_offset(m,
rte_pktmbuf_pkt_len(m) - cparams->digest_length);
if (cparams->aad.length) {
op->sym->aead.aad.data = cparams->aad.data;
op->sym->aead.aad.phys_addr = cparams->aad.phys_addr;
}
}
op->sym->m_src = m;
return l2fwd_crypto_enqueue(op, cparams);
@ -617,7 +648,9 @@ initialize_crypto_session(struct l2fwd_crypto_options *options,
{
struct rte_crypto_sym_xform *first_xform;
if (options->xform_chain == L2FWD_CRYPTO_CIPHER_HASH) {
if (options->xform_chain == L2FWD_CRYPTO_AEAD) {
first_xform = &options->aead_xform;
} else if (options->xform_chain == L2FWD_CRYPTO_CIPHER_HASH) {
first_xform = &options->cipher_xform;
first_xform->next = &options->auth_xform;
} else if (options->xform_chain == L2FWD_CRYPTO_HASH_CIPHER) {
@ -669,8 +702,12 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
for (i = 0; i < qconf->nb_crypto_devs; i++) {
port_cparams[i].do_cipher = 0;
port_cparams[i].do_hash = 0;
port_cparams[i].do_aead = 0;
switch (options->xform_chain) {
case L2FWD_CRYPTO_AEAD:
port_cparams[i].do_aead = 1;
break;
case L2FWD_CRYPTO_CIPHER_HASH:
case L2FWD_CRYPTO_HASH_CIPHER:
port_cparams[i].do_cipher = 1;
@ -695,6 +732,12 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
if (!options->auth_iv_param)
generate_random_key(port_cparams[i].auth_iv.data,
port_cparams[i].auth_iv.length);
if (options->auth_xform.auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
port_cparams[i].hash_verify = 1;
else
port_cparams[i].hash_verify = 0;
port_cparams[i].auth_algo = options->auth_xform.auth.algo;
/* Set IV parameters */
if (options->auth_iv.length) {
options->auth_xform.auth.iv.offset =
@ -702,11 +745,16 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
options->auth_xform.auth.iv.length =
options->auth_iv.length;
}
}
if (port_cparams[i].do_aead) {
port_cparams[i].aead_algo = options->aead_xform.aead.algo;
port_cparams[i].digest_length =
options->auth_xform.auth.digest_length;
if (options->auth_xform.auth.add_auth_data_length) {
options->aead_xform.aead.digest_length;
if (options->aead_xform.aead.add_auth_data_length) {
port_cparams[i].aad.data = options->aad.data;
port_cparams[i].aad.phys_addr = options->aad.phys_addr;
port_cparams[i].aad.length = options->aad.length;
if (!options->aad_param)
generate_random_key(port_cparams[i].aad.data,
port_cparams[i].aad.length);
@ -714,12 +762,14 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
} else
port_cparams[i].aad.length = 0;
if (options->auth_xform.auth.op == RTE_CRYPTO_AUTH_OP_VERIFY)
if (options->aead_xform.aead.op == RTE_CRYPTO_AEAD_OP_DECRYPT)
port_cparams[i].hash_verify = 1;
else
port_cparams[i].hash_verify = 0;
port_cparams[i].auth_algo = options->auth_xform.auth.algo;
/* Set IV parameters */
options->aead_xform.aead.iv.offset = IV_OFFSET;
options->aead_xform.aead.iv.length = options->aead_iv.length;
}
if (port_cparams[i].do_cipher) {
@ -881,7 +931,7 @@ l2fwd_crypto_usage(const char *prgname)
" --cdev_type HW / SW / ANY\n"
" --chain HASH_CIPHER / CIPHER_HASH / CIPHER_ONLY /"
" HASH_ONLY\n"
" HASH_ONLY / AEAD\n"
" --cipher_algo ALGO\n"
" --cipher_op ENCRYPT / DECRYPT\n"
@ -896,8 +946,16 @@ l2fwd_crypto_usage(const char *prgname)
" --auth_key_random_size SIZE: size of auth key when generated randomly\n"
" --auth_iv IV (bytes separated with \":\")\n"
" --auth_iv_random_size SIZE: size of auth IV when generated randomly\n"
" --aead_algo ALGO\n"
" --aead_op ENCRYPT / DECRYPT\n"
" --aead_key KEY (bytes separated with \":\")\n"
" --aead_key_random_size SIZE: size of AEAD key when generated randomly\n"
" --aead_iv IV (bytes separated with \":\")\n"
" --aead_iv_random_size SIZE: size of AEAD IV when generated randomly\n"
" --aad AAD (bytes separated with \":\")\n"
" --aad_random_size SIZE: size of AAD when generated randomly\n"
" --digest_size SIZE: size of digest to be generated/verified\n"
" --sessionless\n"
@ -939,6 +997,9 @@ parse_crypto_opt_chain(struct l2fwd_crypto_options *options, char *optarg)
} else if (strcmp("HASH_ONLY", optarg) == 0) {
options->xform_chain = L2FWD_CRYPTO_HASH_ONLY;
return 0;
} else if (strcmp("AEAD", optarg) == 0) {
options->xform_chain = L2FWD_CRYPTO_AEAD;
return 0;
}
return -1;
@ -1045,6 +1106,32 @@ parse_auth_op(enum rte_crypto_auth_operation *op, char *optarg)
return -1;
}
static int
parse_aead_algo(enum rte_crypto_aead_algorithm *algo, char *optarg)
{
if (rte_cryptodev_get_aead_algo_enum(algo, optarg) < 0) {
RTE_LOG(ERR, USER1, "AEAD algorithm specified "
"not supported!\n");
return -1;
}
return 0;
}
static int
parse_aead_op(enum rte_crypto_aead_operation *op, char *optarg)
{
if (strcmp("ENCRYPT", optarg) == 0) {
*op = RTE_CRYPTO_AEAD_OP_ENCRYPT;
return 0;
} else if (strcmp("DECRYPT", optarg) == 0) {
*op = RTE_CRYPTO_AEAD_OP_DECRYPT;
return 0;
}
printf("AEAD operation specified not supported!\n");
return -1;
}
static int
parse_cryptodev_mask(struct l2fwd_crypto_options *options,
const char *q_arg)
@ -1143,7 +1230,6 @@ l2fwd_crypto_parse_args_long_options(struct l2fwd_crypto_options *options,
return parse_size(&options->akey_random_size, optarg);
}
else if (strcmp(lgopts[option_index].name, "auth_iv") == 0) {
options->auth_iv_param = 1;
options->auth_iv.length =
@ -1157,6 +1243,43 @@ l2fwd_crypto_parse_args_long_options(struct l2fwd_crypto_options *options,
else if (strcmp(lgopts[option_index].name, "auth_iv_random_size") == 0)
return parse_size(&options->auth_iv_random_size, optarg);
/* AEAD options */
else if (strcmp(lgopts[option_index].name, "aead_algo") == 0) {
return parse_aead_algo(&options->aead_xform.aead.algo,
optarg);
}
else if (strcmp(lgopts[option_index].name, "aead_op") == 0)
return parse_aead_op(&options->aead_xform.aead.op,
optarg);
else if (strcmp(lgopts[option_index].name, "aead_key") == 0) {
options->aead_key_param = 1;
options->aead_xform.aead.key.length =
parse_key(options->aead_xform.aead.key.data, optarg);
if (options->aead_xform.aead.key.length > 0)
return 0;
else
return -1;
}
else if (strcmp(lgopts[option_index].name, "aead_key_random_size") == 0)
return parse_size(&options->aead_key_random_size, optarg);
else if (strcmp(lgopts[option_index].name, "aead_iv") == 0) {
options->aead_iv_param = 1;
options->aead_iv.length =
parse_key(options->aead_iv.data, optarg);
if (options->aead_iv.length > 0)
return 0;
else
return -1;
}
else if (strcmp(lgopts[option_index].name, "aead_iv_random_size") == 0)
return parse_size(&options->aead_iv_random_size, optarg);
else if (strcmp(lgopts[option_index].name, "aad") == 0) {
options->aad_param = 1;
options->aad.length =
@ -1291,14 +1414,26 @@ l2fwd_crypto_default_options(struct l2fwd_crypto_options *options)
options->auth_iv_param = 0;
options->auth_iv_random_size = -1;
options->auth_iv.length = 0;
options->aad_param = 0;
options->aad_random_size = -1;
options->aad.length = 0;
options->digest_size = -1;
options->auth_xform.auth.algo = RTE_CRYPTO_AUTH_SHA1_HMAC;
options->auth_xform.auth.op = RTE_CRYPTO_AUTH_OP_GENERATE;
/* AEAD Data */
options->aead_xform.type = RTE_CRYPTO_SYM_XFORM_AEAD;
options->aead_xform.next = NULL;
options->aead_key_param = 0;
options->aead_key_random_size = -1;
options->aead_xform.aead.key.length = 0;
options->aead_iv_param = 0;
options->aead_iv_random_size = -1;
options->aead_iv.length = 0;
options->aad_param = 0;
options->aad_random_size = -1;
options->aad.length = 0;
options->digest_size = -1;
options->type = CDEV_TYPE_ANY;
options->cryptodev_mask = UINT64_MAX;
}
@ -1325,6 +1460,18 @@ display_auth_info(struct l2fwd_crypto_options *options)
options->auth_xform.auth.key.data,
options->auth_xform.auth.key.length);
rte_hexdump(stdout, "IV:", options->auth_iv.data, options->auth_iv.length);
}
static void
display_aead_info(struct l2fwd_crypto_options *options)
{
printf("\n---- AEAD information ---\n");
printf("Algorithm: %s\n",
rte_crypto_aead_algorithm_strings[options->aead_xform.aead.algo]);
rte_hexdump(stdout, "AEAD key:",
options->aead_xform.aead.key.data,
options->aead_xform.aead.key.length);
rte_hexdump(stdout, "IV:", options->aead_iv.data, options->aead_iv.length);
rte_hexdump(stdout, "AAD:", options->aad.data, options->aad.length);
}
@ -1333,6 +1480,7 @@ l2fwd_crypto_options_print(struct l2fwd_crypto_options *options)
{
char string_cipher_op[MAX_STR_LEN];
char string_auth_op[MAX_STR_LEN];
char string_aead_op[MAX_STR_LEN];
if (options->cipher_xform.cipher.op == RTE_CRYPTO_CIPHER_OP_ENCRYPT)
strcpy(string_cipher_op, "Encrypt");
@ -1344,6 +1492,12 @@ l2fwd_crypto_options_print(struct l2fwd_crypto_options *options)
else
strcpy(string_auth_op, "Auth verify");
if (options->aead_xform.aead.op == RTE_CRYPTO_AEAD_OP_ENCRYPT)
strcpy(string_aead_op, "Authenticated encryption");
else
strcpy(string_aead_op, "Authenticated decryption");
printf("Options:-\nn");
printf("portmask: %x\n", options->portmask);
printf("ports per lcore: %u\n", options->nb_ports_per_lcore);
@ -1373,6 +1527,10 @@ l2fwd_crypto_options_print(struct l2fwd_crypto_options *options)
printf("\nCrypto chain: ");
switch (options->xform_chain) {
case L2FWD_CRYPTO_AEAD:
printf("Input --> %s --> Output\n", string_aead_op);
display_aead_info(options);
break;
case L2FWD_CRYPTO_CIPHER_HASH:
printf("Input --> %s --> %s --> Output\n",
string_cipher_op, string_auth_op);
@ -1424,8 +1582,16 @@ l2fwd_crypto_parse_args(struct l2fwd_crypto_options *options,
{ "auth_iv", required_argument, 0, 0 },
{ "auth_iv_random_size", required_argument, 0, 0 },
{ "aead_algo", required_argument, 0, 0 },
{ "aead_op", required_argument, 0, 0 },
{ "aead_key", required_argument, 0, 0 },
{ "aead_key_random_size", required_argument, 0, 0 },
{ "aead_iv", required_argument, 0, 0 },
{ "aead_iv_random_size", required_argument, 0, 0 },
{ "aad", required_argument, 0, 0 },
{ "aad_random_size", required_argument, 0, 0 },
{ "digest_size", required_argument, 0, 0 },
{ "sessionless", no_argument, 0, 0 },
@ -1639,6 +1805,40 @@ check_device_support_auth_algo(const struct l2fwd_crypto_options *options,
return cap;
}
static const struct rte_cryptodev_capabilities *
check_device_support_aead_algo(const struct l2fwd_crypto_options *options,
const struct rte_cryptodev_info *dev_info,
uint8_t cdev_id)
{
unsigned int i = 0;
const struct rte_cryptodev_capabilities *cap = &dev_info->capabilities[0];
enum rte_crypto_aead_algorithm cap_aead_algo;
enum rte_crypto_aead_algorithm opt_aead_algo =
options->aead_xform.aead.algo;
while (cap->op != RTE_CRYPTO_OP_TYPE_UNDEFINED) {
cap_aead_algo = cap->sym.aead.algo;
if (cap->sym.xform_type == RTE_CRYPTO_SYM_XFORM_AEAD) {
if (cap_aead_algo == opt_aead_algo) {
if (check_type(options, dev_info) == 0)
break;
}
}
cap = &dev_info->capabilities[++i];
}
if (cap->op == RTE_CRYPTO_OP_TYPE_UNDEFINED) {
printf("Algorithm %s not supported by cryptodev %u"
" or device not of preferred type (%s)\n",
rte_crypto_aead_algorithm_strings[opt_aead_algo],
cdev_id,
options->string_type);
return NULL;
}
return cap;
}
/* Check if the device is enabled by cryptodev_mask */
static int
check_cryptodev_mask(struct l2fwd_crypto_options *options,
@ -1745,6 +1945,112 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
rte_cryptodev_info_get(cdev_id, &dev_info);
/* Set AEAD parameters */
if (options->xform_chain == L2FWD_CRYPTO_AEAD) {
/* Check if device supports AEAD algo */
cap = check_device_support_aead_algo(options, &dev_info,
cdev_id);
if (cap == NULL)
continue;
options->block_size = cap->sym.aead.block_size;
check_iv_param(&cap->sym.aead.iv_size,
options->aead_iv_param,
options->aead_iv_random_size,
&options->aead_iv.length);
/*
* Check if length of provided AEAD key is supported
* by the algorithm chosen.
*/
if (options->aead_key_param) {
if (check_supported_size(
options->aead_xform.aead.key.length,
cap->sym.aead.key_size.min,
cap->sym.aead.key_size.max,
cap->sym.aead.key_size.increment)
!= 0) {
printf("Unsupported aead key length\n");
return -1;
}
/*
* Check if length of the aead key to be randomly generated
* is supported by the algorithm chosen.
*/
} else if (options->aead_key_random_size != -1) {
if (check_supported_size(options->ckey_random_size,
cap->sym.aead.key_size.min,
cap->sym.aead.key_size.max,
cap->sym.aead.key_size.increment)
!= 0) {
printf("Unsupported aead key length\n");
return -1;
}
options->aead_xform.aead.key.length =
options->ckey_random_size;
/* No size provided, use minimum size. */
} else
options->aead_xform.aead.key.length =
cap->sym.aead.key_size.min;
if (!options->aead_key_param)
generate_random_key(
options->aead_xform.aead.key.data,
options->aead_xform.aead.key.length);
/*
* Check if length of provided AAD is supported
* by the algorithm chosen.
*/
if (options->aad_param) {
if (check_supported_size(options->aad.length,
cap->sym.aead.aad_size.min,
cap->sym.aead.aad_size.max,
cap->sym.aead.aad_size.increment)
!= 0) {
printf("Unsupported AAD length\n");
return -1;
}
/*
* Check if length of AAD to be randomly generated
* is supported by the algorithm chosen.
*/
} else if (options->aad_random_size != -1) {
if (check_supported_size(options->aad_random_size,
cap->sym.aead.aad_size.min,
cap->sym.aead.aad_size.max,
cap->sym.aead.aad_size.increment)
!= 0) {
printf("Unsupported AAD length\n");
return -1;
}
options->aad.length = options->aad_random_size;
/* No size provided, use minimum size. */
} else
options->aad.length = cap->sym.auth.aad_size.min;
options->aead_xform.aead.add_auth_data_length =
options->aad.length;
/* Check if digest size is supported by the algorithm. */
if (options->digest_size != -1) {
if (check_supported_size(options->digest_size,
cap->sym.aead.digest_size.min,
cap->sym.aead.digest_size.max,
cap->sym.aead.digest_size.increment)
!= 0) {
printf("Unsupported digest length\n");
return -1;
}
options->aead_xform.aead.digest_length =
options->digest_size;
/* No size provided, use minimum size. */
} else
options->aead_xform.aead.digest_length =
cap->sym.aead.digest_size.min;
}
/* Set cipher parameters */
if (options->xform_chain == L2FWD_CRYPTO_CIPHER_HASH ||
options->xform_chain == L2FWD_CRYPTO_HASH_CIPHER ||
@ -1817,40 +2123,6 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
options->auth_iv_param,
options->auth_iv_random_size,
&options->auth_iv.length);
/*
* Check if length of provided AAD is supported
* by the algorithm chosen.
*/
if (options->aad_param) {
if (check_supported_size(options->aad.length,
cap->sym.auth.aad_size.min,
cap->sym.auth.aad_size.max,
cap->sym.auth.aad_size.increment)
!= 0) {
printf("Unsupported AAD length\n");
return -1;
}
/*
* Check if length of AAD to be randomly generated
* is supported by the algorithm chosen.
*/
} else if (options->aad_random_size != -1) {
if (check_supported_size(options->aad_random_size,
cap->sym.auth.aad_size.min,
cap->sym.auth.aad_size.max,
cap->sym.auth.aad_size.increment)
!= 0) {
printf("Unsupported AAD length\n");
return -1;
}
options->aad.length = options->aad_random_size;
/* No size provided, use minimum size. */
} else
options->aad.length = cap->sym.auth.aad_size.min;
options->auth_xform.auth.add_auth_data_length =
options->aad.length;
/*
* Check if length of provided auth key is supported
* by the algorithm chosen.
@ -2052,12 +2324,16 @@ reserve_key_memory(struct l2fwd_crypto_options *options)
if (options->cipher_xform.cipher.key.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for cipher key");
options->auth_xform.auth.key.data = rte_malloc("auth key",
MAX_KEY_SIZE, 0);
if (options->auth_xform.auth.key.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for auth key");
options->aead_xform.aead.key.data = rte_malloc("aead key",
MAX_KEY_SIZE, 0);
if (options->aead_xform.aead.key.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for AEAD key");
options->cipher_iv.data = rte_malloc("cipher iv", MAX_KEY_SIZE, 0);
if (options->cipher_iv.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for cipher IV");
@ -2066,6 +2342,10 @@ reserve_key_memory(struct l2fwd_crypto_options *options)
if (options->auth_iv.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for auth IV");
options->aead_iv.data = rte_malloc("aead_iv", MAX_KEY_SIZE, 0);
if (options->aead_iv.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for AEAD iv");
options->aad.data = rte_malloc("aad", MAX_KEY_SIZE, 0);
if (options->aad.data == NULL)
rte_exit(EXIT_FAILURE, "Failed to allocate memory for AAD");