#include <openssl/hmac.h>
#include <wireguard/wireguard.h>
+#include <wireguard/wireguard_chachapoly.h>
/* This implements Noise_IKpsk2:
*
static void noise_tai64n_now (uint8_t[NOISE_TIMESTAMP_LEN]);
-static void secure_zero_memory (void *v, size_t n);
-
/* Set/Get noise parameters */
void
noise_local_init (noise_local_t * l, struct noise_upcall *upcall)
clib_memset (r->r_ss, 0, NOISE_PUBLIC_KEY_LEN);
noise_remote_handshake_index_drop (r);
- secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
+ wg_secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
}
/* Handshake functions */
*s_idx = hs->hs_local_index;
ret = true;
error:
- secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
+ wg_secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
vnet_crypto_key_del (vm, key_idx);
return ret;
}
ret = true;
error:
- secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
+ wg_secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
vnet_crypto_key_del (vm, key_idx);
- secure_zero_memory (&hs, sizeof (hs));
+ wg_secure_zero_memory (&hs, sizeof (hs));
return ret;
}
*s_idx = hs->hs_local_index;
ret = true;
error:
- secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
+ wg_secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
vnet_crypto_key_del (vm, key_idx);
- secure_zero_memory (e, NOISE_PUBLIC_KEY_LEN);
+ wg_secure_zero_memory (e, NOISE_PUBLIC_KEY_LEN);
return ret;
}
ret = true;
}
error:
- secure_zero_memory (&hs, sizeof (hs));
- secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
+ wg_secure_zero_memory (&hs, sizeof (hs));
+ wg_secure_zero_memory (key, NOISE_SYMMETRIC_KEY_LEN);
vnet_crypto_key_del (vm, key_idx);
return ret;
}
vlib_worker_thread_barrier_release (vm);
clib_rwlock_writer_unlock (&r->r_keypair_lock);
- secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
+ wg_secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
- secure_zero_memory (&kp, sizeof (kp));
+ wg_secure_zero_memory (&kp, sizeof (kp));
return true;
}
noise_remote_clear (vlib_main_t * vm, noise_remote_t * r)
{
noise_remote_handshake_index_drop (r);
- secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
+ wg_secure_zero_memory (&r->r_handshake, sizeof (r->r_handshake));
clib_rwlock_writer_lock (&r->r_keypair_lock);
noise_remote_keypair_free (vm, r, &r->r_next);
return ret;
}
-static bool
-chacha20poly1305_calc (vlib_main_t * vm,
- u8 * src,
- u32 src_len,
- u8 * dst,
- u8 * aad,
- u32 aad_len,
- u64 nonce,
- vnet_crypto_op_id_t op_id,
- vnet_crypto_key_index_t key_index)
-{
- vnet_crypto_op_t _op, *op = &_op;
- u8 iv[12];
- u8 tag_[NOISE_AUTHTAG_LEN] = { };
- u8 src_[] = { };
-
- clib_memset (iv, 0, 12);
- clib_memcpy (iv + 4, &nonce, sizeof (nonce));
-
- vnet_crypto_op_init (op, op_id);
-
- op->tag_len = NOISE_AUTHTAG_LEN;
- if (op_id == VNET_CRYPTO_OP_CHACHA20_POLY1305_DEC)
- {
- op->tag = src + src_len - NOISE_AUTHTAG_LEN;
- src_len -= NOISE_AUTHTAG_LEN;
- op->flags |= VNET_CRYPTO_OP_FLAG_HMAC_CHECK;
- }
- else
- op->tag = tag_;
-
- op->src = !src ? src_ : src;
- op->len = src_len;
-
- op->dst = dst;
- op->key_index = key_index;
- op->aad = aad;
- op->aad_len = aad_len;
- op->iv = iv;
-
- vnet_crypto_process_ops (vm, op, 1);
- if (op_id == VNET_CRYPTO_OP_CHACHA20_POLY1305_ENC)
- {
- clib_memcpy (dst + src_len, op->tag, NOISE_AUTHTAG_LEN);
- }
-
- return (op->status == VNET_CRYPTO_OP_STATUS_COMPLETED);
-}
-
enum noise_state_crypt
noise_remote_encrypt (vlib_main_t * vm, noise_remote_t * r, uint32_t * r_idx,
uint64_t * nonce, uint8_t * src, size_t srclen,
* are passed back out to the caller through the provided data pointer. */
*r_idx = kp->kp_remote_index;
- chacha20poly1305_calc (vm, src, srclen, dst, NULL, 0, *nonce,
- VNET_CRYPTO_OP_CHACHA20_POLY1305_ENC,
- kp->kp_send_index);
+ wg_chacha20poly1305_calc (vm, src, srclen, dst, NULL, 0, *nonce,
+ VNET_CRYPTO_OP_CHACHA20_POLY1305_ENC,
+ kp->kp_send_index);
/* If our values are still within tolerances, but we are approaching
* the tolerances, we notify the caller with ESTALE that they should
out:
/* Clear sensitive data from stack */
- secure_zero_memory (sec, BLAKE2S_HASH_SIZE);
- secure_zero_memory (out, BLAKE2S_HASH_SIZE + 1);
+ wg_secure_zero_memory (sec, BLAKE2S_HASH_SIZE);
+ wg_secure_zero_memory (out, BLAKE2S_HASH_SIZE + 1);
}
static bool
noise_kdf (ck, key, NULL, dh,
NOISE_HASH_LEN, NOISE_SYMMETRIC_KEY_LEN, 0, NOISE_PUBLIC_KEY_LEN,
ck);
- secure_zero_memory (dh, NOISE_PUBLIC_KEY_LEN);
+ wg_secure_zero_memory (dh, NOISE_PUBLIC_KEY_LEN);
return true;
}
NOISE_HASH_LEN, NOISE_HASH_LEN, NOISE_SYMMETRIC_KEY_LEN,
NOISE_SYMMETRIC_KEY_LEN, ck);
noise_mix_hash (hash, tmp, NOISE_HASH_LEN);
- secure_zero_memory (tmp, NOISE_HASH_LEN);
+ wg_secure_zero_memory (tmp, NOISE_HASH_LEN);
}
static void
uint8_t hash[NOISE_HASH_LEN])
{
/* Nonce always zero for Noise_IK */
- chacha20poly1305_calc (vm, src, src_len, dst, hash, NOISE_HASH_LEN, 0,
- VNET_CRYPTO_OP_CHACHA20_POLY1305_ENC, key_idx);
+ wg_chacha20poly1305_calc (vm, src, src_len, dst, hash, NOISE_HASH_LEN, 0,
+ VNET_CRYPTO_OP_CHACHA20_POLY1305_ENC, key_idx);
noise_mix_hash (hash, dst, src_len + NOISE_AUTHTAG_LEN);
}
uint8_t hash[NOISE_HASH_LEN])
{
/* Nonce always zero for Noise_IK */
- if (!chacha20poly1305_calc (vm, src, src_len, dst, hash, NOISE_HASH_LEN, 0,
- VNET_CRYPTO_OP_CHACHA20_POLY1305_DEC, key_idx))
+ if (!wg_chacha20poly1305_calc (vm, src, src_len, dst, hash, NOISE_HASH_LEN,
+ 0, VNET_CRYPTO_OP_CHACHA20_POLY1305_DEC,
+ key_idx))
return false;
noise_mix_hash (hash, src, src_len);
return true;
clib_memcpy (output + sizeof (sec), &nsec, sizeof (nsec));
}
-static void
-secure_zero_memory (void *v, size_t n)
-{
- static void *(*const volatile memset_v) (void *, int, size_t) = &memset;
- memset_v (v, 0, n);
-}
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff