diff options
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c | 2283 |
1 files changed, 2283 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c b/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c new file mode 100644 index 0000000..ceaf77c --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/cryptocteon/cavium_crypto.c @@ -0,0 +1,2283 @@ +/* + * Copyright (c) 2009 David McCullough <david.mccullough@securecomputing.com> + * + * Copyright (c) 2003-2007 Cavium Networks (support@cavium.com). All rights + * reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Cavium Networks + * 4. Cavium Networks' name may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * This Software, including technical data, may be subject to U.S. export + * control laws, including the U.S. Export Administration Act and its + * associated regulations, and may be subject to export or import regulations + * in other countries. You warrant that You will comply strictly in all + * respects with all such regulations and acknowledge that you have the + * responsibility to obtain licenses to export, re-export or import the + * Software. + * + * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" AND + * WITH ALL FAULTS AND CAVIUM MAKES NO PROMISES, REPRESENTATIONS OR WARRANTIES, + * EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO THE + * SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR + * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM + * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, + * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF + * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR + * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR + * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. +*/ +/****************************************************************************/ + +#include <linux/scatterlist.h> +#include <asm/octeon/octeon.h> +#include "octeon-asm.h" + +/****************************************************************************/ + +extern unsigned long octeon_crypto_enable(struct octeon_cop2_state *); +extern void octeon_crypto_disable(struct octeon_cop2_state *, unsigned long); + +#define SG_INIT(s, p, i, l) \ + { \ + (i) = 0; \ + (l) = (s)[0].length; \ + (p) = (typeof(p)) sg_virt((s)); \ + CVMX_PREFETCH0((p)); \ + } + +#define SG_CONSUME(s, p, i, l) \ + { \ + (p)++; \ + (l) -= sizeof(*(p)); \ + if ((l) < 0) { \ + dprintk("%s, %d: l = %d\n", __FILE__, __LINE__, l); \ + } else if ((l) == 0) { \ + (i)++; \ + (l) = (s)[0].length; \ + (p) = (typeof(p)) sg_virt(s); \ + CVMX_PREFETCH0((p)); \ + } \ + } + +#define ESP_HEADER_LENGTH 8 +#define DES_CBC_IV_LENGTH 8 +#define AES_CBC_IV_LENGTH 16 +#define ESP_HMAC_LEN 12 + +#define ESP_HEADER_LENGTH 8 +#define DES_CBC_IV_LENGTH 8 + +/****************************************************************************/ + +#define CVM_LOAD_SHA_UNIT(dat, next) { \ + if (next == 0) { \ + next = 1; \ + CVMX_MT_HSH_DAT (dat, 0); \ + } else if (next == 1) { \ + next = 2; \ + CVMX_MT_HSH_DAT (dat, 1); \ + } else if (next == 2) { \ + next = 3; \ + CVMX_MT_HSH_DAT (dat, 2); \ + } else if (next == 3) { \ + next = 4; \ + CVMX_MT_HSH_DAT (dat, 3); \ + } else if (next == 4) { \ + next = 5; \ + CVMX_MT_HSH_DAT (dat, 4); \ + } else if (next == 5) { \ + next = 6; \ + CVMX_MT_HSH_DAT (dat, 5); \ + } else if (next == 6) { \ + next = 7; \ + CVMX_MT_HSH_DAT (dat, 6); \ + } else { \ + CVMX_MT_HSH_STARTSHA (dat); \ + next = 0; \ + } \ +} + +#define CVM_LOAD2_SHA_UNIT(dat1, dat2, next) { \ + if (next == 0) { \ + CVMX_MT_HSH_DAT (dat1, 0); \ + CVMX_MT_HSH_DAT (dat2, 1); \ + next = 2; \ + } else if (next == 1) { \ + CVMX_MT_HSH_DAT (dat1, 1); \ + CVMX_MT_HSH_DAT (dat2, 2); \ + next = 3; \ + } else if (next == 2) { \ + CVMX_MT_HSH_DAT (dat1, 2); \ + CVMX_MT_HSH_DAT (dat2, 3); \ + next = 4; \ + } else if (next == 3) { \ + CVMX_MT_HSH_DAT (dat1, 3); \ + CVMX_MT_HSH_DAT (dat2, 4); \ + next = 5; \ + } else if (next == 4) { \ + CVMX_MT_HSH_DAT (dat1, 4); \ + CVMX_MT_HSH_DAT (dat2, 5); \ + next = 6; \ + } else if (next == 5) { \ + CVMX_MT_HSH_DAT (dat1, 5); \ + CVMX_MT_HSH_DAT (dat2, 6); \ + next = 7; \ + } else if (next == 6) { \ + CVMX_MT_HSH_DAT (dat1, 6); \ + CVMX_MT_HSH_STARTSHA (dat2); \ + next = 0; \ + } else { \ + CVMX_MT_HSH_STARTSHA (dat1); \ + CVMX_MT_HSH_DAT (dat2, 0); \ + next = 1; \ + } \ +} + +/****************************************************************************/ + +#define CVM_LOAD_MD5_UNIT(dat, next) { \ + if (next == 0) { \ + next = 1; \ + CVMX_MT_HSH_DAT (dat, 0); \ + } else if (next == 1) { \ + next = 2; \ + CVMX_MT_HSH_DAT (dat, 1); \ + } else if (next == 2) { \ + next = 3; \ + CVMX_MT_HSH_DAT (dat, 2); \ + } else if (next == 3) { \ + next = 4; \ + CVMX_MT_HSH_DAT (dat, 3); \ + } else if (next == 4) { \ + next = 5; \ + CVMX_MT_HSH_DAT (dat, 4); \ + } else if (next == 5) { \ + next = 6; \ + CVMX_MT_HSH_DAT (dat, 5); \ + } else if (next == 6) { \ + next = 7; \ + CVMX_MT_HSH_DAT (dat, 6); \ + } else { \ + CVMX_MT_HSH_STARTMD5 (dat); \ + next = 0; \ + } \ +} + +#define CVM_LOAD2_MD5_UNIT(dat1, dat2, next) { \ + if (next == 0) { \ + CVMX_MT_HSH_DAT (dat1, 0); \ + CVMX_MT_HSH_DAT (dat2, 1); \ + next = 2; \ + } else if (next == 1) { \ + CVMX_MT_HSH_DAT (dat1, 1); \ + CVMX_MT_HSH_DAT (dat2, 2); \ + next = 3; \ + } else if (next == 2) { \ + CVMX_MT_HSH_DAT (dat1, 2); \ + CVMX_MT_HSH_DAT (dat2, 3); \ + next = 4; \ + } else if (next == 3) { \ + CVMX_MT_HSH_DAT (dat1, 3); \ + CVMX_MT_HSH_DAT (dat2, 4); \ + next = 5; \ + } else if (next == 4) { \ + CVMX_MT_HSH_DAT (dat1, 4); \ + CVMX_MT_HSH_DAT (dat2, 5); \ + next = 6; \ + } else if (next == 5) { \ + CVMX_MT_HSH_DAT (dat1, 5); \ + CVMX_MT_HSH_DAT (dat2, 6); \ + next = 7; \ + } else if (next == 6) { \ + CVMX_MT_HSH_DAT (dat1, 6); \ + CVMX_MT_HSH_STARTMD5 (dat2); \ + next = 0; \ + } else { \ + CVMX_MT_HSH_STARTMD5 (dat1); \ + CVMX_MT_HSH_DAT (dat2, 0); \ + next = 1; \ + } \ +} + +/****************************************************************************/ + +static inline uint64_t +swap64(uint64_t a) +{ + return ((a >> 56) | + (((a >> 48) & 0xfful) << 8) | + (((a >> 40) & 0xfful) << 16) | + (((a >> 32) & 0xfful) << 24) | + (((a >> 24) & 0xfful) << 32) | + (((a >> 16) & 0xfful) << 40) | + (((a >> 8) & 0xfful) << 48) | (((a >> 0) & 0xfful) << 56)); +} + +/****************************************************************************/ + +void +octo_calc_hash(__u8 auth, unsigned char *key, uint64_t *inner, uint64_t *outer) +{ + uint8_t hash_key[64]; + uint64_t *key1; + register uint64_t xor1 = 0x3636363636363636ULL; + register uint64_t xor2 = 0x5c5c5c5c5c5c5c5cULL; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + memset(hash_key, 0, sizeof(hash_key)); + memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16)); + key1 = (uint64_t *) hash_key; + flags = octeon_crypto_enable(&state); + if (auth) { + CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0); + CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1); + CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2); + } else { + CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0); + CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1); + } + + CVMX_MT_HSH_DAT((*key1 ^ xor1), 0); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 1); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 2); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 3); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 4); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 5); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor1), 6); + key1++; + if (auth) + CVMX_MT_HSH_STARTSHA((*key1 ^ xor1)); + else + CVMX_MT_HSH_STARTMD5((*key1 ^ xor1)); + + CVMX_MF_HSH_IV(inner[0], 0); + CVMX_MF_HSH_IV(inner[1], 1); + if (auth) { + inner[2] = 0; + CVMX_MF_HSH_IV(((uint64_t *) inner)[2], 2); + } + + memset(hash_key, 0, sizeof(hash_key)); + memcpy(hash_key, (uint8_t *) key, (auth ? 20 : 16)); + key1 = (uint64_t *) hash_key; + if (auth) { + CVMX_MT_HSH_IV(0x67452301EFCDAB89ULL, 0); + CVMX_MT_HSH_IV(0x98BADCFE10325476ULL, 1); + CVMX_MT_HSH_IV(0xC3D2E1F000000000ULL, 2); + } else { + CVMX_MT_HSH_IV(0x0123456789ABCDEFULL, 0); + CVMX_MT_HSH_IV(0xFEDCBA9876543210ULL, 1); + } + + CVMX_MT_HSH_DAT((*key1 ^ xor2), 0); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 1); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 2); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 3); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 4); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 5); + key1++; + CVMX_MT_HSH_DAT((*key1 ^ xor2), 6); + key1++; + if (auth) + CVMX_MT_HSH_STARTSHA((*key1 ^ xor2)); + else + CVMX_MT_HSH_STARTMD5((*key1 ^ xor2)); + + CVMX_MF_HSH_IV(outer[0], 0); + CVMX_MF_HSH_IV(outer[1], 1); + if (auth) { + outer[2] = 0; + CVMX_MF_HSH_IV(outer[2], 2); + } + octeon_crypto_disable(&state, flags); + return; +} + +/****************************************************************************/ +/* DES functions */ + +int +octo_des_cbc_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 8; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + + +int +octo_des_cbc_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 8; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES functions */ + +int +octo_aes_cbc_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data, *pdata; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + pdata = data; + CVMX_MT_AES_ENC_CBC0(*data); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 16; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + + +int +octo_aes_cbc_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + uint64_t *data, *pdata; + int data_i, data_l; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x7) || (crypt_off + crypt_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + while (crypt_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + crypt_off -= 8; + } + + while (crypt_len > 0) { + pdata = data; + CVMX_MT_AES_DEC_CBC0(*data); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + SG_CONSUME(sg, data, data_i, data_l); + crypt_len -= 16; + } + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* MD5 */ + +int +octo_null_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + uint64_t *data; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || + (auth_off & 0x7) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + flags = octeon_crypto_enable(&state); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (auth_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + auth_off -= 8; + } + + while (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + SG_CONSUME(sg, data, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + icv_off -= 8; + } + CVMX_MF_HSH_IV(*data, 0); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *(uint32_t *)data = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* SHA1 */ + +int +octo_null_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + uint64_t *data; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || + (auth_off & 0x7) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data, data_i, data_l); + + flags = octeon_crypto_enable(&state); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (auth_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + auth_off -= 8; + } + + while (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + SG_CONSUME(sg, data, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* save the HMAC */ + SG_INIT(sg, data, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data, data_i, data_l); + icv_off -= 8; + } + CVMX_MF_HSH_IV(*data, 0); + SG_CONSUME(sg, data, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *(uint32_t *)data = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* DES MD5 */ + +int +octo_des_cbc_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_des_cbc_md5_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* DES SHA */ + +int +octo_des_cbc_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_ENC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_des_cbc_sha1_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata; + uint64_t *data = &mydata.data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load 3DES Key */ + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + if (od->octo_encklen == 24) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + } else if (od->octo_encklen == 8) { + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 1); + CVMX_MT_3DES_KEY(((uint64_t *) od->octo_enckey)[0], 2); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + + CVMX_MT_3DES_IV(* (uint64_t *) ivp); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + while (crypt_len > 0 || auth_len > 0) { + uint32_t *first = data32; + mydata.data32[0] = *first; + SG_CONSUME(sg, data32, data_i, data_l); + mydata.data32[1] = *data32; + if (auth_off <= 0) { + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + } else + auth_off -= 8; + if (crypt_off <= 0) { + if (crypt_len > 0) { + CVMX_MT_3DES_DEC_CBC(*data); + CVMX_MF_3DES_RESULT(*data); + crypt_len -= 8; + } + } else + crypt_off -= 8; + *first = mydata.data32[0]; + *data32 = mydata.data32[1]; + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES MD5 */ + +int +octo_aes_cbc_md5_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + + mydata[1].data32[1] = *data32; + + CVMX_MT_AES_ENC_CBC0(*pdata); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish any left over hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_aes_cbc_md5_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s()\n", __FUNCTION__); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load MD5 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + if (auth_len > 0) { + CVM_LOAD_MD5_UNIT(*data, next); + auth_len -= 8; + } + + CVMX_MT_AES_DEC_CBC0(*pdata); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish left over hash if any */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_MD5_UNIT(*pdata, next); + auth_len -= 8; + } + + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_MD5_UNIT(((uint64_t) 0x0ULL), next); + } + CVMX_ES64(tmp1, ((alen + 64) << 3)); + CVM_LOAD_MD5_UNIT(tmp1, next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + CVMX_MT_HSH_DAT(0x8000000000000000ULL, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_ES64(tmp1, ((64 + 16) << 3)); + CVMX_MT_HSH_STARTMD5(tmp1); + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ +/* AES SHA1 */ + +int +octo_aes_cbc_sha1_encrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n", + __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load SHA IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + CVMX_MT_AES_ENC_CBC0(*pdata); + CVMX_MT_AES_ENC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish and hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +int +octo_aes_cbc_sha1_decrypt( + struct octo_sess *od, + struct scatterlist *sg, int sg_len, + int auth_off, int auth_len, + int crypt_off, int crypt_len, + int icv_off, uint8_t *ivp) +{ + register int next = 0; + union { + uint32_t data32[2]; + uint64_t data64[1]; + } mydata[2]; + uint64_t *pdata = &mydata[0].data64[0]; + uint64_t *data = &mydata[1].data64[0]; + uint32_t *data32; + uint64_t tmp1, tmp2, tmp3; + int data_i, data_l, alen = auth_len; + struct octeon_cop2_state state; + unsigned long flags; + + dprintk("%s(a_off=%d a_len=%d c_off=%d c_len=%d icv_off=%d)\n", + __FUNCTION__, auth_off, auth_len, crypt_off, crypt_len, icv_off); + + if (unlikely(od == NULL || sg==NULL || sg_len==0 || ivp==NULL || + (crypt_off & 0x3) || (crypt_off + crypt_len > sg_len) || + (crypt_len & 0x7) || + (auth_len & 0x7) || + (auth_off & 0x3) || (auth_off + auth_len > sg_len))) { + dprintk("%s: Bad parameters od=%p sg=%p sg_len=%d " + "auth_off=%d auth_len=%d crypt_off=%d crypt_len=%d " + "icv_off=%d ivp=%p\n", __FUNCTION__, od, sg, sg_len, + auth_off, auth_len, crypt_off, crypt_len, icv_off, ivp); + return -EINVAL; + } + + SG_INIT(sg, data32, data_i, data_l); + + CVMX_PREFETCH0(ivp); + CVMX_PREFETCH0(od->octo_enckey); + + flags = octeon_crypto_enable(&state); + + /* load AES Key */ + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[0], 0); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[1], 1); + + if (od->octo_encklen == 16) { + CVMX_MT_AES_KEY(0x0, 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 24) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(0x0, 3); + } else if (od->octo_encklen == 32) { + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[2], 2); + CVMX_MT_AES_KEY(((uint64_t *) od->octo_enckey)[3], 3); + } else { + octeon_crypto_disable(&state, flags); + dprintk("%s: Bad key length %d\n", __FUNCTION__, od->octo_encklen); + return -EINVAL; + } + CVMX_MT_AES_KEYLENGTH(od->octo_encklen / 8 - 1); + + CVMX_MT_AES_IV(((uint64_t *) ivp)[0], 0); + CVMX_MT_AES_IV(((uint64_t *) ivp)[1], 1); + + /* Load SHA1 IV */ + CVMX_MT_HSH_IV(od->octo_hminner[0], 0); + CVMX_MT_HSH_IV(od->octo_hminner[1], 1); + CVMX_MT_HSH_IV(od->octo_hminner[2], 2); + + while (crypt_off > 0 && auth_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + crypt_off -= 4; + auth_off -= 4; + } + + /* align auth and crypt */ + while (crypt_off > 0 && auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + crypt_off -= 8; + auth_len -= 8; + } + + while (crypt_len > 0) { + uint32_t *pdata32[3]; + + pdata32[0] = data32; + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[1] = data32; + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + pdata32[2] = data32; + mydata[1].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[1].data32[1] = *data32; + + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + if (auth_len > 0) { + CVM_LOAD_SHA_UNIT(*data, next); + auth_len -= 8; + } + + CVMX_MT_AES_DEC_CBC0(*pdata); + CVMX_MT_AES_DEC_CBC1(*data); + CVMX_MF_AES_RESULT(*pdata, 0); + CVMX_MF_AES_RESULT(*data, 1); + crypt_len -= 16; + + *pdata32[0] = mydata[0].data32[0]; + *pdata32[1] = mydata[0].data32[1]; + *pdata32[2] = mydata[1].data32[0]; + *data32 = mydata[1].data32[1]; + + SG_CONSUME(sg, data32, data_i, data_l); + } + + /* finish and leftover hashing */ + while (auth_len > 0) { + mydata[0].data32[0] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + mydata[0].data32[1] = *data32; + SG_CONSUME(sg, data32, data_i, data_l); + CVM_LOAD_SHA_UNIT(*pdata, next); + auth_len -= 8; + } + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_SHA_UNIT(tmp, next); + } else { + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_SHA_UNIT(0x8000000000000000ULL, next); +#endif + + /* Finish Inner hash */ + while (next != 7) { + CVM_LOAD_SHA_UNIT(((uint64_t) 0x0ULL), next); + } + CVM_LOAD_SHA_UNIT((uint64_t) ((alen + 64) << 3), next); + + /* Get the inner hash of HMAC */ + CVMX_MF_HSH_IV(tmp1, 0); + CVMX_MF_HSH_IV(tmp2, 1); + tmp3 = 0; + CVMX_MF_HSH_IV(tmp3, 2); + + /* Initialize hash unit */ + CVMX_MT_HSH_IV(od->octo_hmouter[0], 0); + CVMX_MT_HSH_IV(od->octo_hmouter[1], 1); + CVMX_MT_HSH_IV(od->octo_hmouter[2], 2); + + CVMX_MT_HSH_DAT(tmp1, 0); + CVMX_MT_HSH_DAT(tmp2, 1); + tmp3 |= 0x0000000080000000; + CVMX_MT_HSH_DAT(tmp3, 2); + CVMX_MT_HSH_DATZ(3); + CVMX_MT_HSH_DATZ(4); + CVMX_MT_HSH_DATZ(5); + CVMX_MT_HSH_DATZ(6); + CVMX_MT_HSH_STARTSHA((uint64_t) ((64 + 20) << 3)); + + /* finish the hash */ + CVMX_PREFETCH0(od->octo_hmouter); +#if 0 + if (unlikely(inplen)) { + uint64_t tmp = 0; + uint8_t *p = (uint8_t *) & tmp; + p[inplen] = 0x80; + do { + inplen--; + p[inplen] = ((uint8_t *) data)[inplen]; + } while (inplen); + CVM_LOAD_MD5_UNIT(tmp, next); + } else { + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); + } +#else + CVM_LOAD_MD5_UNIT(0x8000000000000000ULL, next); +#endif + + /* save the HMAC */ + SG_INIT(sg, data32, data_i, data_l); + while (icv_off > 0) { + SG_CONSUME(sg, data32, data_i, data_l); + icv_off -= 4; + } + CVMX_MF_HSH_IV(tmp1, 0); + *data32 = (uint32_t) (tmp1 >> 32); + SG_CONSUME(sg, data32, data_i, data_l); + *data32 = (uint32_t) tmp1; + SG_CONSUME(sg, data32, data_i, data_l); + CVMX_MF_HSH_IV(tmp1, 1); + *data32 = (uint32_t) (tmp1 >> 32); + + octeon_crypto_disable(&state, flags); + return 0; +} + +/****************************************************************************/ |