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authorPablo de Lara <pablo.de.lara.guarch@intel.com>2017-07-02 06:41:14 +0100
committerPablo de Lara <pablo.de.lara.guarch@intel.com>2017-07-06 22:26:48 +0200
commit0fbd75a99fc9d2c8c7618d677d3f50fb9872b80c (patch)
tree2423ed003bc81d814e8e854b497e5693b3879163 /examples/l2fwd-crypto
parent5082f991f6def0ef06e9ff1cf9f39ef3b78657c5 (diff)
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cryptodev: move IV parameters to session
Since IV parameters (offset and length) should not change for operations in the same session, these parameters are moved to the crypto transform structure, so they will be stored in the sessions. 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>
Diffstat (limited to 'examples/l2fwd-crypto')
-rw-r--r--examples/l2fwd-crypto/main.c90
1 files changed, 54 insertions, 36 deletions
diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index c810b48..d28dcf2 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -139,6 +139,11 @@ struct l2fwd_key {
phys_addr_t phys_addr;
};
+struct l2fwd_iv {
+ uint8_t *data;
+ uint16_t length;
+};
+
/** l2fwd crypto application command line options */
struct l2fwd_crypto_options {
unsigned portmask;
@@ -155,8 +160,8 @@ struct l2fwd_crypto_options {
unsigned ckey_param;
int ckey_random_size;
- struct l2fwd_key iv;
- unsigned iv_param;
+ struct l2fwd_iv iv;
+ unsigned int iv_param;
int iv_random_size;
struct rte_crypto_sym_xform auth_xform;
@@ -183,7 +188,7 @@ struct l2fwd_crypto_params {
unsigned digest_length;
unsigned block_size;
- struct l2fwd_key iv;
+ struct l2fwd_iv iv;
struct l2fwd_key aad;
struct rte_cryptodev_sym_session *session;
@@ -489,9 +494,6 @@ l2fwd_simple_crypto_enqueue(struct rte_mbuf *m,
/* Copy IV at the end of the crypto operation */
rte_memcpy(iv_ptr, cparams->iv.data, cparams->iv.length);
- op->sym->cipher.iv.offset = IV_OFFSET;
- op->sym->cipher.iv.length = cparams->iv.length;
-
/* For wireless algorithms, offset/length must be in bits */
if (cparams->cipher_algo == RTE_CRYPTO_CIPHER_SNOW3G_UEA2 ||
cparams->cipher_algo == RTE_CRYPTO_CIPHER_KASUMI_F8 ||
@@ -703,6 +705,9 @@ l2fwd_main_loop(struct l2fwd_crypto_options *options)
port_cparams[i].iv.length);
port_cparams[i].cipher_algo = options->cipher_xform.cipher.algo;
+ /* Set IV parameters */
+ options->cipher_xform.cipher.iv.offset = IV_OFFSET;
+ options->cipher_xform.cipher.iv.length = options->iv.length;
}
port_cparams[i].session = initialize_crypto_session(options,
@@ -1547,6 +1552,46 @@ check_supported_size(uint16_t length, uint16_t min, uint16_t max,
return -1;
}
+
+static int
+check_iv_param(const struct rte_crypto_param_range *iv_range_size,
+ unsigned int iv_param, int iv_random_size,
+ uint16_t *iv_length)
+{
+ /*
+ * Check if length of provided IV is supported
+ * by the algorithm chosen.
+ */
+ if (iv_param) {
+ if (check_supported_size(*iv_length,
+ iv_range_size->min,
+ iv_range_size->max,
+ iv_range_size->increment)
+ != 0) {
+ printf("Unsupported IV length\n");
+ return -1;
+ }
+ /*
+ * Check if length of IV to be randomly generated
+ * is supported by the algorithm chosen.
+ */
+ } else if (iv_random_size != -1) {
+ if (check_supported_size(iv_random_size,
+ iv_range_size->min,
+ iv_range_size->max,
+ iv_range_size->increment)
+ != 0) {
+ printf("Unsupported IV length\n");
+ return -1;
+ }
+ *iv_length = iv_random_size;
+ /* No size provided, use minimum size. */
+ } else
+ *iv_length = iv_range_size->min;
+
+ return 0;
+}
+
static int
initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
uint8_t *enabled_cdevs)
@@ -1614,36 +1659,9 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
}
options->block_size = cap->sym.cipher.block_size;
- /*
- * Check if length of provided IV is supported
- * by the algorithm chosen.
- */
- if (options->iv_param) {
- if (check_supported_size(options->iv.length,
- cap->sym.cipher.iv_size.min,
- cap->sym.cipher.iv_size.max,
- cap->sym.cipher.iv_size.increment)
- != 0) {
- printf("Unsupported IV length\n");
- return -1;
- }
- /*
- * Check if length of IV to be randomly generated
- * is supported by the algorithm chosen.
- */
- } else if (options->iv_random_size != -1) {
- if (check_supported_size(options->iv_random_size,
- cap->sym.cipher.iv_size.min,
- cap->sym.cipher.iv_size.max,
- cap->sym.cipher.iv_size.increment)
- != 0) {
- printf("Unsupported IV length\n");
- return -1;
- }
- options->iv.length = options->iv_random_size;
- /* No size provided, use minimum size. */
- } else
- options->iv.length = cap->sym.cipher.iv_size.min;
+
+ check_iv_param(&cap->sym.cipher.iv_size, options->iv_param,
+ options->iv_random_size, &options->iv.length);
/*
* Check if length of provided cipher key is supported