LXR busybox/networking/tls.h

   1/*
   2 * Copyright (C) 2017 Denys Vlasenko
   3 *
   4 * Licensed under GPLv2, see file LICENSE in this source tree.
   5 */
   6/* Interface glue between bbox code and minimally tweaked matrixssl
   7 * code. All C files (matrixssl and bbox (ones which need TLS))
   8 * include this file, and guaranteed to see a consistent API,
   9 * defines, types, etc.
  10 */
  11#include "libbb.h"
  12
  13
  14/* Config tweaks */
  15#define HAVE_NATIVE_INT64
  16#undef  USE_1024_KEY_SPEED_OPTIMIZATIONS
  17#undef  USE_2048_KEY_SPEED_OPTIMIZATIONS
  18#define USE_AES
  19#undef  USE_AES_CBC_EXTERNAL
  20#undef  USE_AES_CCM
  21#undef  USE_AES_GCM
  22#undef  USE_3DES
  23#undef  USE_ARC4
  24#undef  USE_IDEA
  25#undef  USE_RC2
  26#undef  USE_SEED
  27/* pstm: multiprecision numbers */
  28#undef  DISABLE_PSTM
  29#if defined(__GNUC__) && defined(__i386__)
  30  /* PSTM_X86 works correctly. +25 bytes. */
  31# define PSTM_32BIT
  32# define PSTM_X86
  33#endif
  34//#if defined(__GNUC__) && defined(__x86_64__)
  35//  /* PSTM_X86_64 works correctly, but +782 bytes. */
  36//  /* Looks like most of the growth is because of PSTM_64BIT. */
  37//# define PSTM_64BIT
  38//# define PSTM_X86_64
  39//#endif
  40//#if SOME_COND #define PSTM_MIPS, #define PSTM_32BIT
  41//#if SOME_COND #define PSTM_ARM,  #define PSTM_32BIT
  42
  43
  44#define PS_SUCCESS              0
  45#define PS_FAILURE              -1
  46#define PS_ARG_FAIL             -6      /* Failure due to bad function param */
  47#define PS_PLATFORM_FAIL        -7      /* Failure as a result of system call error */
  48#define PS_MEM_FAIL             -8      /* Failure to allocate requested memory */
  49#define PS_LIMIT_FAIL           -9      /* Failure on sanity/limit tests */
  50
  51#define PS_TRUE         1
  52#define PS_FALSE        0
  53
  54#if BB_BIG_ENDIAN
  55# define ENDIAN_BIG     1
  56# undef  ENDIAN_LITTLE
  57//#????  ENDIAN_32BITWORD
  58// controls only STORE32L, which we don't use
  59#else
  60# define ENDIAN_LITTLE  1
  61# undef  ENDIAN_BIG
  62#endif
  63
  64typedef uint64_t uint64;
  65typedef  int64_t  int64;
  66typedef uint32_t uint32;
  67typedef  int32_t  int32;
  68typedef uint16_t uint16;
  69typedef  int16_t  int16;
  70
  71//typedef char psPool_t;
  72
  73//#ifdef PS_PUBKEY_OPTIMIZE_FOR_SMALLER_RAM
  74#define PS_EXPTMOD_WINSIZE   3
  75//#ifdef PS_PUBKEY_OPTIMIZE_FOR_FASTER_SPEED
  76//#define PS_EXPTMOD_WINSIZE 5
  77
  78#define PUBKEY_TYPE     0x01
  79#define PRIVKEY_TYPE    0x02
  80
  81#define AES_BLOCK_SIZE  16
  82
  83void tls_get_random(void *buf, unsigned len) FAST_FUNC;
  84
  85void xorbuf(void* buf, const void* mask, unsigned count) FAST_FUNC;
  86
  87#define ALIGNED_long ALIGNED(sizeof(long))
  88void xorbuf_aligned_AES_BLOCK_SIZE(void* buf, const void* mask) FAST_FUNC;
  89
  90#define matrixCryptoGetPrngData(buf, len, userPtr) (tls_get_random(buf, len), PS_SUCCESS)
  91
  92#define psFree(p, pool)    free(p)
  93#define psTraceCrypto(msg) bb_simple_error_msg_and_die(msg)
  94
  95/* Secure zerofill */
  96#define memset_s(A,B,C,D) memset((A),(C),(D))
  97/* Constant time memory comparison */
  98#define memcmpct(s1, s2, len) memcmp((s1), (s2), (len))
  99#undef  min
 100#define min(x, y) ((x) < (y) ? (x) : (y))
 101
 102
 103#include "tls_pstm.h"
 104#include "tls_symmetric.h"
 105#include "tls_aes.h"
 106#include "tls_aesgcm.h"
 107#include "tls_rsa.h"
 108
 109#define EC_CURVE_KEYSIZE   32
 110#define P256_KEYSIZE       32
 111#define CURVE25519_KEYSIZE 32
 112
 113void curve_x25519_compute_pubkey_and_premaster(
 114                uint8_t *pubkey32, uint8_t *premaster32,
 115                const uint8_t *peerkey32) FAST_FUNC;
 116
 117void curve_P256_compute_pubkey_and_premaster(
 118                uint8_t *pubkey2x32, uint8_t *premaster32,
 119                const uint8_t *peerkey2x32) FAST_FUNC;
 120