diff options
Diffstat (limited to 'vnet/vnet/ipsec/ikev2_crypto.c')
| -rw-r--r-- | vnet/vnet/ipsec/ikev2_crypto.c | 765 |
1 files changed, 0 insertions, 765 deletions
diff --git a/vnet/vnet/ipsec/ikev2_crypto.c b/vnet/vnet/ipsec/ikev2_crypto.c deleted file mode 100644 index 32927629c5e..00000000000 --- a/vnet/vnet/ipsec/ikev2_crypto.c +++ /dev/null @@ -1,765 +0,0 @@ -/* - * Copyright (c) 2015 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <vlib/vlib.h> -#include <vnet/vnet.h> -#include <vnet/pg/pg.h> -#include <vppinfra/error.h> -#include <vnet/ip/udp.h> -#include <vnet/ipsec/ikev2.h> -#include <vnet/ipsec/ikev2_priv.h> -#include <openssl/obj_mac.h> -#include <openssl/ec.h> -#include <openssl/x509.h> -#include <openssl/pem.h> -#include <openssl/bn.h> - -/* from RFC7296 */ -static const char modp_dh_768_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A63A3620FFFFFFFFFFFFFFFF"; -static const char modp_dh_768_generator[] = "02"; - -static const char modp_dh_1024_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" - "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381" "FFFFFFFFFFFFFFFF"; -static const char modp_dh_1024_generator[] = "02"; - -/* from RFC3526 */ -static const char modp_dh_1536_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" - "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" - "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" - "83655D23DCA3AD961C62F356208552BB9ED529077096966D" - "670C354E4ABC9804F1746C08CA237327FFFFFFFFFFFFFFFF"; -static const char modp_dh_1536_generator[] = "02"; - -static const char modp_dh_2048_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" - "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" - "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" - "83655D23DCA3AD961C62F356208552BB9ED529077096966D" - "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" - "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" - "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" - "15728E5A8AACAA68FFFFFFFFFFFFFFFF"; -static const char modp_dh_2048_generator[] = "02"; - -static const char modp_dh_3072_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" - "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" - "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" - "83655D23DCA3AD961C62F356208552BB9ED529077096966D" - "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" - "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" - "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" - "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" - "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" - "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" - "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" - "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" - "43DB5BFCE0FD108E4B82D120A93AD2CAFFFFFFFFFFFFFFFF"; -static const char modp_dh_3072_generator[] = "02"; - -static const char modp_dh_4096_prime[] = - "FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD1" - "29024E088A67CC74020BBEA63B139B22514A08798E3404DD" - "EF9519B3CD3A431B302B0A6DF25F14374FE1356D6D51C245" - "E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED" - "EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE45B3D" - "C2007CB8A163BF0598DA48361C55D39A69163FA8FD24CF5F" - "83655D23DCA3AD961C62F356208552BB9ED529077096966D" - "670C354E4ABC9804F1746C08CA18217C32905E462E36CE3B" - "E39E772C180E86039B2783A2EC07A28FB5C55DF06F4C52C9" - "DE2BCBF6955817183995497CEA956AE515D2261898FA0510" - "15728E5A8AAAC42DAD33170D04507A33A85521ABDF1CBA64" - "ECFB850458DBEF0A8AEA71575D060C7DB3970F85A6E1E4C7" - "ABF5AE8CDB0933D71E8C94E04A25619DCEE3D2261AD2EE6B" - "F12FFA06D98A0864D87602733EC86A64521F2B18177B200C" - "BBE117577A615D6C770988C0BAD946E208E24FA074E5AB31" - "43DB5BFCE0FD108E4B82D120A92108011A723C12A787E6D7" - "88719A10BDBA5B2699C327186AF4E23C1A946834B6150BDA" - "2583E9CA2AD44CE8DBBBC2DB04DE8EF92E8EFC141FBECAA6" - "287C59474E6BC05D99B2964FA090C3A2233BA186515BE7ED" - "1F612970CEE2D7AFB81BDD762170481CD0069127D5B05AA9" - "93B4EA988D8FDDC186FFB7DC90A6C08F4DF435C934063199" "FFFFFFFFFFFFFFFF"; -static const char modp_dh_4096_generator[] = "02"; - -static const char modp_dh_6144_prime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static const char modp_dh_6144_generator[] = "02"; - -static const char modp_dh_8192_prime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static const char modp_dh_8192_generator[] = "02"; - -/* from RFC5114 */ -static const char modp_dh_1024_160_prime[] = - "B10B8F96A080E01DDE92DE5EAE5D54EC52C99FBCFB06A3C6" - "9A6A9DCA52D23B616073E28675A23D189838EF1E2EE652C0" - "13ECB4AEA906112324975C3CD49B83BFACCBDD7D90C4BD70" - "98488E9C219A73724EFFD6FAE5644738FAA31A4FF55BCCC0" - "A151AF5F0DC8B4BD45BF37DF365C1A65E68CFDA76D4DA708" "DF1FB2BC2E4A4371"; -static const char modp_dh_1024_160_generator[] = - "A4D1CBD5C3FD34126765A442EFB99905F8104DD258AC507F" - "D6406CFF14266D31266FEA1E5C41564B777E690F5504F213" - "160217B4B01B886A5E91547F9E2749F4D7FBD7D3B9A92EE1" - "909D0D2263F80A76A6A24C087A091F531DBF0A0169B6A28A" - "D662A4D18E73AFA32D779D5918D08BC8858F4DCEF97C2A24" "855E6EEB22B3B2E5"; - -static const char modp_dh_2048_224_prime[] = - "AD107E1E9123A9D0D660FAA79559C51FA20D64E5683B9FD1" - "B54B1597B61D0A75E6FA141DF95A56DBAF9A3C407BA1DF15" - "EB3D688A309C180E1DE6B85A1274A0A66D3F8152AD6AC212" - "9037C9EDEFDA4DF8D91E8FEF55B7394B7AD5B7D0B6C12207" - "C9F98D11ED34DBF6C6BA0B2C8BBC27BE6A00E0A0B9C49708" - "B3BF8A317091883681286130BC8985DB1602E714415D9330" - "278273C7DE31EFDC7310F7121FD5A07415987D9ADC0A486D" - "CDF93ACC44328387315D75E198C641A480CD86A1B9E587E8" - "BE60E69CC928B2B9C52172E413042E9B23F10B0E16E79763" - "C9B53DCF4BA80A29E3FB73C16B8E75B97EF363E2FFA31F71" - "CF9DE5384E71B81C0AC4DFFE0C10E64F"; -static const char modp_dh_2048_224_generator[] = - "AC4032EF4F2D9AE39DF30B5C8FFDAC506CDEBE7B89998CAF" - "74866A08CFE4FFE3A6824A4E10B9A6F0DD921F01A70C4AFA" - "AB739D7700C29F52C57DB17C620A8652BE5E9001A8D66AD7" - "C17669101999024AF4D027275AC1348BB8A762D0521BC98A" - "E247150422EA1ED409939D54DA7460CDB5F6C6B250717CBE" - "F180EB34118E98D119529A45D6F834566E3025E316A330EF" - "BB77A86F0C1AB15B051AE3D428C8F8ACB70A8137150B8EEB" - "10E183EDD19963DDD9E263E4770589EF6AA21E7F5F2FF381" - "B539CCE3409D13CD566AFBB48D6C019181E1BCFE94B30269" - "EDFE72FE9B6AA4BD7B5A0F1C71CFFF4C19C418E1F6EC0179" - "81BC087F2A7065B384B890D3191F2BFA"; - -static const char modp_dh_2048_256_prime[] = - "87A8E61DB4B6663CFFBBD19C651959998CEEF608660DD0F2" - "5D2CEED4435E3B00E00DF8F1D61957D4FAF7DF4561B2AA30" - "16C3D91134096FAA3BF4296D830E9A7C209E0C6497517ABD" - "5A8A9D306BCF67ED91F9E6725B4758C022E0B1EF4275BF7B" - "6C5BFC11D45F9088B941F54EB1E59BB8BC39A0BF12307F5C" - "4FDB70C581B23F76B63ACAE1CAA6B7902D52526735488A0E" - "F13C6D9A51BFA4AB3AD8347796524D8EF6A167B5A41825D9" - "67E144E5140564251CCACB83E6B486F6B3CA3F7971506026" - "C0B857F689962856DED4010ABD0BE621C3A3960A54E710C3" - "75F26375D7014103A4B54330C198AF126116D2276E11715F" - "693877FAD7EF09CADB094AE91E1A1597"; -static const char modp_dh_2048_256_generator[] = - "3FB32C9B73134D0B2E77506660EDBD484CA7B18F21EF2054" - "07F4793A1A0BA12510DBC15077BE463FFF4FED4AAC0BB555" - "BE3A6C1B0C6B47B1BC3773BF7E8C6F62901228F8C28CBB18" - "A55AE31341000A650196F931C77A57F2DDF463E5E9EC144B" - "777DE62AAAB8A8628AC376D282D6ED3864E67982428EBC83" - "1D14348F6F2F9193B5045AF2767164E1DFC967C1FB3F2E55" - "A4BD1BFFE83B9C80D052B985D182EA0ADB2A3B7313D3FE14" - "C8484B1E052588B9B7D2BBD2DF016199ECD06E1557CD0915" - "B3353BBB64E0EC377FD028370DF92B52C7891428CDC67EB6" - "184B523D1DB246C32F63078490F00EF8D647D148D4795451" - "5E2327CFEF98C582664B4C0F6CC41659"; - -v8 * -ikev2_calc_prf (ikev2_sa_transform_t * tr, v8 * key, v8 * data) -{ - HMAC_CTX ctx; - v8 *prf; - unsigned int len = 0; - - prf = vec_new (u8, tr->key_trunc); - HMAC_CTX_init (&ctx); - HMAC_Init_ex (&ctx, key, vec_len (key), tr->md, NULL); - HMAC_Update (&ctx, data, vec_len (data)); - HMAC_Final (&ctx, prf, &len); - HMAC_CTX_cleanup (&ctx); - - ASSERT (len == tr->key_trunc); - - return prf; -} - -u8 * -ikev2_calc_prfplus (ikev2_sa_transform_t * tr, u8 * key, u8 * seed, int len) -{ - v8 *t = 0, *s = 0, *tmp = 0, *ret = 0; - u8 x = 0; - - /* prf+ (K,S) = T1 | T2 | T3 | T4 | ... - - where: - T1 = prf (K, S | 0x01) - T2 = prf (K, T1 | S | 0x02) - T3 = prf (K, T2 | S | 0x03) - T4 = prf (K, T3 | S | 0x04) - */ - - while (vec_len (ret) < len && x < 255) - { - if (t) - { - vec_append (s, t); - vec_free (t); - } - - vec_append (s, seed); - vec_add2 (s, tmp, 1); - *tmp = x + 1; - t = ikev2_calc_prf (tr, key, s); - vec_append (ret, t); - vec_free (s); - x++; - } - - vec_free (t); - - if (x == 255) - { - vec_free (ret); - } - - return ret; -} - -v8 * -ikev2_calc_integr (ikev2_sa_transform_t * tr, v8 * key, u8 * data, int len) -{ - v8 *r; - HMAC_CTX hctx; - unsigned int l; - - ASSERT (tr->type == IKEV2_TRANSFORM_TYPE_INTEG); - - r = vec_new (u8, tr->key_len); - - /* verify integrity of data */ - HMAC_CTX_init (&hctx); - HMAC_Init (&hctx, key, vec_len (key), tr->md); - HMAC_Update (&hctx, (const u8 *) data, len); - HMAC_Final (&hctx, r, &l); - HMAC_CTX_cleanup (&hctx); - - ASSERT (l == tr->key_len); - - return r; -} - -v8 * -ikev2_decrypt_data (ikev2_sa_t * sa, u8 * data, int len) -{ - EVP_CIPHER_CTX ctx; - v8 *r; - int out_len = 0, block_size; - ikev2_sa_transform_t *tr_encr; - - tr_encr = - ikev2_sa_get_td_for_type (sa->r_proposals, IKEV2_TRANSFORM_TYPE_ENCR); - block_size = tr_encr->block_size; - - /* check if data is multiplier of cipher block size */ - if (len % block_size) - { - clib_warning ("wrong data length"); - return 0; - } - - EVP_CIPHER_CTX_init (&ctx); - r = vec_new (u8, len - block_size); - EVP_DecryptInit_ex (&ctx, tr_encr->cipher, NULL, sa->sk_ei, data); - EVP_DecryptUpdate (&ctx, r, &out_len, data + block_size, len - block_size); - EVP_DecryptFinal_ex (&ctx, r + out_len, &out_len); - - /* remove padding */ - _vec_len (r) -= r[vec_len (r) - 1] + 1; - - EVP_CIPHER_CTX_cleanup (&ctx); - return r; -} - -int -ikev2_encrypt_data (ikev2_sa_t * sa, v8 * src, u8 * dst) -{ - EVP_CIPHER_CTX ctx; - int out_len; - int bs; - ikev2_sa_transform_t *tr_encr; - - tr_encr = - ikev2_sa_get_td_for_type (sa->r_proposals, IKEV2_TRANSFORM_TYPE_ENCR); - bs = tr_encr->block_size; - - /* generate IV */ - RAND_bytes (dst, bs); - - EVP_CIPHER_CTX_init (&ctx); - - EVP_EncryptInit_ex (&ctx, tr_encr->cipher, NULL, sa->sk_er, dst /* dst */ ); - EVP_EncryptUpdate (&ctx, dst + bs, &out_len, src, vec_len (src)); - - EVP_CIPHER_CTX_cleanup (&ctx); - - ASSERT (vec_len (src) == out_len); - - return out_len + bs; -} - -void -ikev2_generate_dh (ikev2_sa_t * sa, ikev2_sa_transform_t * t) -{ - int r; - - if (t->dh_group == IKEV2_DH_GROUP_MODP) - { - DH *dh = DH_new (); - BN_hex2bn (&dh->p, t->dh_p); - BN_hex2bn (&dh->g, t->dh_g); - DH_generate_key (dh); - - sa->r_dh_data = vec_new (u8, t->key_len); - r = BN_bn2bin (dh->pub_key, sa->r_dh_data); - ASSERT (r == t->key_len); - - BIGNUM *ex; - sa->dh_shared_key = vec_new (u8, t->key_len); - ex = BN_bin2bn (sa->i_dh_data, vec_len (sa->i_dh_data), NULL); - r = DH_compute_key (sa->dh_shared_key, ex, dh); - ASSERT (r == t->key_len); - BN_clear_free (ex); - DH_free (dh); - } - else if (t->dh_group == IKEV2_DH_GROUP_ECP) - { - EC_KEY *ec = EC_KEY_new_by_curve_name (t->nid); - ASSERT (ec); - - EC_KEY_generate_key (ec); - - const EC_POINT *r_point = EC_KEY_get0_public_key (ec); - const EC_GROUP *group = EC_KEY_get0_group (ec); - BIGNUM *x = NULL, *y = NULL; - BN_CTX *bn_ctx = BN_CTX_new (); - u16 x_off, y_off, len; - EC_POINT *i_point = EC_POINT_new (group); - EC_POINT *shared_point = EC_POINT_new (group); - - x = BN_new (); - y = BN_new (); - len = t->key_len / 2; - - EC_POINT_get_affine_coordinates_GFp (group, r_point, x, y, bn_ctx); - sa->r_dh_data = vec_new (u8, t->key_len); - x_off = len - BN_num_bytes (x); - memset (sa->r_dh_data, 0, x_off); - BN_bn2bin (x, sa->r_dh_data + x_off); - y_off = t->key_len - BN_num_bytes (y); - memset (sa->r_dh_data + len, 0, y_off - len); - BN_bn2bin (y, sa->r_dh_data + y_off); - - x = BN_bin2bn (sa->i_dh_data, len, x); - y = BN_bin2bn (sa->i_dh_data + len, len, y); - EC_POINT_set_affine_coordinates_GFp (group, i_point, x, y, bn_ctx); - sa->dh_shared_key = vec_new (u8, t->key_len); - EC_POINT_mul (group, shared_point, NULL, i_point, - EC_KEY_get0_private_key (ec), NULL); - EC_POINT_get_affine_coordinates_GFp (group, shared_point, x, y, bn_ctx); - x_off = len - BN_num_bytes (x); - memset (sa->dh_shared_key, 0, x_off); - BN_bn2bin (x, sa->dh_shared_key + x_off); - y_off = t->key_len - BN_num_bytes (y); - memset (sa->dh_shared_key + len, 0, y_off - len); - BN_bn2bin (y, sa->dh_shared_key + y_off); - - EC_KEY_free (ec); - BN_free (x); - BN_free (y); - BN_CTX_free (bn_ctx); - EC_POINT_free (i_point); - EC_POINT_free (shared_point); - } -} - -int -ikev2_verify_sign (EVP_PKEY * pkey, u8 * sigbuf, u8 * data) -{ - EVP_MD_CTX md_ctx; - - EVP_VerifyInit (&md_ctx, EVP_sha1 ()); - EVP_VerifyUpdate (&md_ctx, data, vec_len (data)); - - return EVP_VerifyFinal (&md_ctx, sigbuf, vec_len (sigbuf), pkey); -} - -u8 * -ikev2_calc_sign (EVP_PKEY * pkey, u8 * data) -{ - EVP_MD_CTX md_ctx; - unsigned int sig_len = 0; - u8 *sign; - - EVP_SignInit (&md_ctx, EVP_sha1 ()); - EVP_SignUpdate (&md_ctx, data, vec_len (data)); - /* get sign len */ - EVP_SignFinal (&md_ctx, NULL, &sig_len, pkey); - sign = vec_new (u8, sig_len); - /* calc sign */ - EVP_SignFinal (&md_ctx, sign, &sig_len, pkey); - - return sign; -} - -EVP_PKEY * -ikev2_load_cert_file (u8 * file) -{ - FILE *fp; - X509 *x509; - EVP_PKEY *pkey = NULL; - - fp = fopen ((char *) file, "r"); - if (!fp) - { - clib_warning ("open %s failed", file); - goto end; - } - - x509 = PEM_read_X509 (fp, NULL, NULL, NULL); - fclose (fp); - if (x509 == NULL) - { - clib_warning ("read cert %s failed", file); - goto end; - } - - pkey = X509_get_pubkey (x509); - if (pkey == NULL) - clib_warning ("get pubkey %s failed", file); - -end: - return pkey; -} - -EVP_PKEY * -ikev2_load_key_file (u8 * file) -{ - FILE *fp; - EVP_PKEY *pkey = NULL; - - fp = fopen ((char *) file, "r"); - if (!fp) - { - clib_warning ("open %s failed", file); - goto end; - } - - pkey = PEM_read_PrivateKey (fp, NULL, NULL, NULL); - fclose (fp); - if (pkey == NULL) - clib_warning ("read %s failed", file); - -end: - return pkey; -} - -void -ikev2_crypto_init (ikev2_main_t * km) -{ - ikev2_sa_transform_t *tr; - - /* vector of supported transforms - in order of preference */ - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_ENCR; - tr->encr_type = IKEV2_TRANSFORM_ENCR_TYPE_AES_CBC; - tr->key_len = 256 / 8; - tr->block_size = 128 / 8; - tr->cipher = EVP_aes_256_cbc (); - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_ENCR; - tr->encr_type = IKEV2_TRANSFORM_ENCR_TYPE_AES_CBC; - tr->key_len = 192 / 8; - tr->block_size = 128 / 8; - tr->cipher = EVP_aes_192_cbc (); - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_ENCR; - tr->encr_type = IKEV2_TRANSFORM_ENCR_TYPE_AES_CBC; - tr->key_len = 128 / 8; - tr->block_size = 128 / 8; - tr->cipher = EVP_aes_128_cbc (); - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_PRF; - tr->prf_type = IKEV2_TRANSFORM_PRF_TYPE_PRF_HMAC_SHA1; - tr->key_len = 160 / 8; - tr->key_trunc = 160 / 8; - tr->md = EVP_sha1 (); - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_INTEG; - tr->integ_type = IKEV2_TRANSFORM_INTEG_TYPE_AUTH_HMAC_SHA1_96; - tr->key_len = 160 / 8; - tr->key_trunc = 96 / 8; - tr->md = EVP_sha1 (); - -#if defined(OPENSSL_NO_CISCO_FECDH) - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_BRAINPOOL_512; - tr->key_len = (512 * 2) / 8; - tr->nid = NID_brainpoolP512r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_BRAINPOOL_384; - tr->key_len = (384 * 2) / 8; - tr->nid = NID_brainpoolP384r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_BRAINPOOL_256; - tr->key_len = (256 * 2) / 8; - tr->nid = NID_brainpoolP256r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_BRAINPOOL_224; - tr->key_len = (224 * 2) / 8; - tr->nid = NID_brainpoolP224r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_ECP_224; - tr->key_len = (224 * 2) / 8; - tr->nid = NID_secp224r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; -#endif - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_ECP_521; - tr->key_len = (528 * 2) / 8; - tr->nid = NID_secp521r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_ECP_384; - tr->key_len = (384 * 2) / 8; - tr->nid = NID_secp384r1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_ECP_256; - tr->key_len = (256 * 2) / 8; - tr->nid = NID_X9_62_prime256v1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_ECP_192; - tr->key_len = (192 * 2) / 8; - tr->nid = NID_X9_62_prime192v1; - tr->dh_group = IKEV2_DH_GROUP_ECP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_2048_256; - tr->key_len = 2048 / 8; - tr->dh_p = (const char *) &modp_dh_2048_256_prime; - tr->dh_g = (const char *) &modp_dh_2048_256_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_2048_224; - tr->key_len = 2048 / 8; - tr->dh_p = (const char *) &modp_dh_2048_224_prime; - tr->dh_g = (const char *) &modp_dh_2048_224_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_1024_160; - tr->key_len = 1024 / 8; - tr->dh_p = (const char *) &modp_dh_1024_160_prime; - tr->dh_g = (const char *) &modp_dh_1024_160_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_8192; - tr->key_len = 8192 / 8; - tr->dh_p = (const char *) &modp_dh_8192_prime; - tr->dh_g = (const char *) &modp_dh_8192_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_6144; - tr->key_len = 6144 / 8; - tr->dh_p = (const char *) &modp_dh_6144_prime; - tr->dh_g = (const char *) &modp_dh_6144_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_4096; - tr->key_len = 4096 / 8; - tr->dh_p = (const char *) &modp_dh_4096_prime; - tr->dh_g = (const char *) &modp_dh_4096_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_3072; - tr->key_len = 3072 / 8; - tr->dh_p = (const char *) &modp_dh_3072_prime; - tr->dh_g = (const char *) &modp_dh_3072_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_2048; - tr->key_len = 2048 / 8; - tr->dh_p = (const char *) &modp_dh_2048_prime; - tr->dh_g = (const char *) &modp_dh_2048_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_1536; - tr->key_len = 1536 / 8; - tr->dh_p = (const char *) &modp_dh_1536_prime; - tr->dh_g = (const char *) &modp_dh_1536_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_1024; - tr->key_len = 1024 / 8; - tr->dh_p = (const char *) &modp_dh_1024_prime; - tr->dh_g = (const char *) &modp_dh_1024_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_DH; - tr->dh_type = IKEV2_TRANSFORM_DH_TYPE_MODP_768; - tr->key_len = 768 / 8; - tr->dh_p = (const char *) &modp_dh_768_prime; - tr->dh_g = (const char *) &modp_dh_768_generator; - tr->dh_group = IKEV2_DH_GROUP_MODP; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_ESN; - tr->esn_type = IKEV2_TRANSFORM_ESN_TYPE_ESN; - - vec_add2 (km->supported_transforms, tr, 1); - tr->type = IKEV2_TRANSFORM_TYPE_ESN; - tr->esn_type = IKEV2_TRANSFORM_ESN_TYPE_NO_ESN; -} - - - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |