Merge pull request #8283 from daverodgman/more-aes-checks
More AES guards testing and some fixes
This commit is contained in:
Dave Rodgman
GitHub
commit
2fde39a22c
4 changed files with 149 additions and 109 deletions
2
3rdparty/Makefile.inc
vendored
2
3rdparty/Makefile.inc
vendored
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@ -1,3 +1,3 @@
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THIRDPARTY_DIR = $(dir $(word 2, $(MAKEFILE_LIST)))
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THIRDPARTY_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
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include $(THIRDPARTY_DIR)/everest/Makefile.inc
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include $(THIRDPARTY_DIR)/p256-m/Makefile.inc
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103
library/aes.c
103
library/aes.c
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@ -76,9 +76,7 @@ static int aes_padlock_ace = -1;
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/*
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* Forward S-box
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*/
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#if !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_DEC_ALT)
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static const unsigned char FSb[256] =
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MBEDTLS_MAYBE_UNUSED static const unsigned char FSb[256] =
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{
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0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,
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0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
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@ -113,8 +111,6 @@ static const unsigned char FSb[256] =
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0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68,
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0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16
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};
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#endif /* !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_DEC_ALT) */
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/*
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* Forward tables
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@ -186,36 +182,28 @@ static const unsigned char FSb[256] =
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V(C3, 41, 41, 82), V(B0, 99, 99, 29), V(77, 2D, 2D, 5A), V(11, 0F, 0F, 1E), \
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V(CB, B0, B0, 7B), V(FC, 54, 54, A8), V(D6, BB, BB, 6D), V(3A, 16, 16, 2C)
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#if !defined(MBEDTLS_AES_ENCRYPT_ALT)
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#define V(a, b, c, d) 0x##a##b##c##d
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static const uint32_t FT0[256] = { FT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t FT0[256] = { FT };
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#undef V
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#if !defined(MBEDTLS_AES_FEWER_TABLES)
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#define V(a, b, c, d) 0x##b##c##d##a
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static const uint32_t FT1[256] = { FT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t FT1[256] = { FT };
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#undef V
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#define V(a, b, c, d) 0x##c##d##a##b
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static const uint32_t FT2[256] = { FT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t FT2[256] = { FT };
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#undef V
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#define V(a, b, c, d) 0x##d##a##b##c
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static const uint32_t FT3[256] = { FT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t FT3[256] = { FT };
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#undef V
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#endif /* !MBEDTLS_AES_FEWER_TABLES */
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#endif /* !defined(MBEDTLS_AES_ENCRYPT_ALT) */
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#undef FT
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#if !defined(MBEDTLS_AES_DECRYPT_ALT)
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/*
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* Reverse S-box
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*/
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static const unsigned char RSb[256] =
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MBEDTLS_MAYBE_UNUSED static const unsigned char RSb[256] =
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{
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0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,
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0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
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@ -250,7 +238,6 @@ static const unsigned char RSb[256] =
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0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26,
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0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D
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};
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#endif /* defined(MBEDTLS_AES_DECRYPT_ALT)) */
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/*
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* Reverse tables
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@ -322,84 +309,60 @@ static const unsigned char RSb[256] =
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V(71, 01, A8, 39), V(DE, B3, 0C, 08), V(9C, E4, B4, D8), V(90, C1, 56, 64), \
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V(61, 84, CB, 7B), V(70, B6, 32, D5), V(74, 5C, 6C, 48), V(42, 57, B8, D0)
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#if !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT)
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#define V(a, b, c, d) 0x##a##b##c##d
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static const uint32_t RT0[256] = { RT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t RT0[256] = { RT };
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#undef V
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#if !defined(MBEDTLS_AES_FEWER_TABLES)
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#define V(a, b, c, d) 0x##b##c##d##a
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static const uint32_t RT1[256] = { RT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t RT1[256] = { RT };
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#undef V
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#define V(a, b, c, d) 0x##c##d##a##b
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static const uint32_t RT2[256] = { RT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t RT2[256] = { RT };
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#undef V
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#define V(a, b, c, d) 0x##d##a##b##c
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static const uint32_t RT3[256] = { RT };
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MBEDTLS_MAYBE_UNUSED static const uint32_t RT3[256] = { RT };
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#undef V
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#endif /* !MBEDTLS_AES_FEWER_TABLES */
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#endif /* !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT) */
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#undef RT
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#if !defined(MBEDTLS_AES_SETKEY_ENC_ALT)
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/*
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* Round constants
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*/
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static const uint32_t round_constants[10] =
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MBEDTLS_MAYBE_UNUSED static const uint32_t round_constants[10] =
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{
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0x00000001, 0x00000002, 0x00000004, 0x00000008,
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0x00000010, 0x00000020, 0x00000040, 0x00000080,
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0x0000001B, 0x00000036
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};
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#endif /* !defined(MBEDTLS_AES_SETKEY_ENC_ALT) */
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#else /* MBEDTLS_AES_ROM_TABLES */
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/*
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* Forward S-box & tables
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*/
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#if !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_DEC_ALT)
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static unsigned char FSb[256];
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#endif /* !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_DEC_ALT) */
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#if !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT)
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static uint32_t FT0[256];
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#if !defined(MBEDTLS_AES_FEWER_TABLES)
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static uint32_t FT1[256];
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static uint32_t FT2[256];
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static uint32_t FT3[256];
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#endif /* !MBEDTLS_AES_FEWER_TABLES */
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#endif /* !defined(MBEDTLS_AES_ENCRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_ENC_ALT) */
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MBEDTLS_MAYBE_UNUSED static unsigned char FSb[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t FT0[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t FT1[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t FT2[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t FT3[256];
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/*
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* Reverse S-box & tables
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*/
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#if !(defined(MBEDTLS_AES_SETKEY_ENC_ALT) && defined(MBEDTLS_AES_DECRYPT_ALT))
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static unsigned char RSb[256];
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#endif /* !(defined(MBEDTLS_AES_SETKEY_ENC_ALT) && defined(MBEDTLS_AES_DECRYPT_ALT)) */
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MBEDTLS_MAYBE_UNUSED static unsigned char RSb[256];
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#if !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT)
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static uint32_t RT0[256];
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#if !defined(MBEDTLS_AES_FEWER_TABLES)
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static uint32_t RT1[256];
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static uint32_t RT2[256];
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static uint32_t RT3[256];
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#endif /* !MBEDTLS_AES_FEWER_TABLES */
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#endif /* !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT) */
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MBEDTLS_MAYBE_UNUSED static uint32_t RT0[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t RT1[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t RT2[256];
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MBEDTLS_MAYBE_UNUSED static uint32_t RT3[256];
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#if !defined(MBEDTLS_AES_SETKEY_ENC_ALT)
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/*
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* Round constants
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*/
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static uint32_t round_constants[10];
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MBEDTLS_MAYBE_UNUSED static uint32_t round_constants[10];
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/*
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* Tables generation code
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@ -408,9 +371,9 @@ static uint32_t round_constants[10];
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#define XTIME(x) (((x) << 1) ^ (((x) & 0x80) ? 0x1B : 0x00))
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#define MUL(x, y) (((x) && (y)) ? pow[(log[(x)]+log[(y)]) % 255] : 0)
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static int aes_init_done = 0;
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MBEDTLS_MAYBE_UNUSED static int aes_init_done = 0;
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static void aes_gen_tables(void)
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MBEDTLS_MAYBE_UNUSED static void aes_gen_tables(void)
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{
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int i;
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uint8_t x, y, z;
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@ -474,7 +437,8 @@ static void aes_gen_tables(void)
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x = RSb[i];
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#if !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT)
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#if !defined(MBEDTLS_AES_DECRYPT_ALT) || \
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(!defined(MBEDTLS_AES_SETKEY_DEC_ALT) && !defined(MBEDTLS_AES_USE_HARDWARE_ONLY))
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RT0[i] = ((uint32_t) MUL(0x0E, x)) ^
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((uint32_t) MUL(0x09, x) << 8) ^
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((uint32_t) MUL(0x0D, x) << 16) ^
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@ -485,12 +449,11 @@ static void aes_gen_tables(void)
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RT2[i] = ROTL8(RT1[i]);
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RT3[i] = ROTL8(RT2[i]);
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#endif /* !MBEDTLS_AES_FEWER_TABLES */
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#endif /* !defined(MBEDTLS_AES_DECRYPT_ALT) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT) */
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#endif \
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/* !defined(MBEDTLS_AES_DECRYPT_ALT) || (!defined(MBEDTLS_AES_SETKEY_DEC_ALT) && !defined(MBEDTLS_AES_USE_HARDWARE_ONLY)) */
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}
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}
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#endif /* !defined(MBEDTLS_AES_SETKEY_ENC_ALT) */
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#undef ROTL8
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#endif /* MBEDTLS_AES_ROM_TABLES */
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@ -568,9 +531,7 @@ void mbedtls_aes_xts_free(mbedtls_aes_xts_context *ctx)
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#define MAY_NEED_TO_ALIGN
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#endif
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#if defined(MAY_NEED_TO_ALIGN) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_ENC_ALT)
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static unsigned mbedtls_aes_rk_offset(uint32_t *buf)
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MBEDTLS_MAYBE_UNUSED static unsigned mbedtls_aes_rk_offset(uint32_t *buf)
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{
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#if defined(MAY_NEED_TO_ALIGN)
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int align_16_bytes = 0;
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@ -606,8 +567,6 @@ static unsigned mbedtls_aes_rk_offset(uint32_t *buf)
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return 0;
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}
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#endif /* defined(MAY_NEED_TO_ALIGN) || !defined(MBEDTLS_AES_SETKEY_DEC_ALT) || \
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!defined(MBEDTLS_AES_SETKEY_ENC_ALT) */
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/*
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* AES key schedule (encryption)
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@ -1040,7 +999,6 @@ int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx,
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}
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#endif /* !MBEDTLS_AES_DECRYPT_ALT */
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#if defined(MAY_NEED_TO_ALIGN)
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/* VIA Padlock and our intrinsics-based implementation of AESNI require
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* the round keys to be aligned on a 16-byte boundary. We take care of this
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* before creating them, but the AES context may have moved (this can happen
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@ -1048,7 +1006,7 @@ int mbedtls_internal_aes_decrypt(mbedtls_aes_context *ctx,
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* calls it might have a different alignment with respect to 16-byte memory.
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* So we may need to realign.
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*/
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static void aes_maybe_realign(mbedtls_aes_context *ctx)
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MBEDTLS_MAYBE_UNUSED static void aes_maybe_realign(mbedtls_aes_context *ctx)
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{
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unsigned new_offset = mbedtls_aes_rk_offset(ctx->buf);
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if (new_offset != ctx->rk_offset) {
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@ -1058,7 +1016,6 @@ static void aes_maybe_realign(mbedtls_aes_context *ctx)
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ctx->rk_offset = new_offset;
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}
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}
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#endif
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/*
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* AES-ECB block encryption/decryption
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@ -334,4 +334,25 @@ static inline void mbedtls_xor_no_simd(unsigned char *r,
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#define MBEDTLS_OPTIMIZE_FOR_PERFORMANCE
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#endif
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/* Suppress compiler warnings for unused functions and variables. */
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#if !defined(MBEDTLS_MAYBE_UNUSED) && defined(__has_attribute)
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# if __has_attribute(unused)
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# define MBEDTLS_MAYBE_UNUSED __attribute__((unused))
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# endif
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#endif
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#if !defined(MBEDTLS_MAYBE_UNUSED) && defined(__GNUC__)
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# define MBEDTLS_MAYBE_UNUSED __attribute__((unused))
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#endif
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#if !defined(MBEDTLS_MAYBE_UNUSED) && defined(__IAR_SYSTEMS_ICC__) && defined(__VER__)
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# if (__VER__ >= 8010000) // IAR 8.1 or later
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# define MBEDTLS_MAYBE_UNUSED __attribute__((unused))
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# endif
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#endif
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#if !defined(MBEDTLS_MAYBE_UNUSED) && defined(_MSC_VER)
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# define MBEDTLS_MAYBE_UNUSED __pragma(warning(suppress:4189))
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#endif
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#if !defined(MBEDTLS_MAYBE_UNUSED)
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# define MBEDTLS_MAYBE_UNUSED
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#endif
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#endif /* MBEDTLS_LIBRARY_COMMON_H */
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@ -3919,45 +3919,107 @@ component_build_tfm() {
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make lib CC="gcc" CFLAGS="-Os -std=c99 -Werror -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wshadow -Wvla -Wformat=2 -Wno-format-nonliteral -Wshadow -Wformat-signedness -Wlogical-op -I../tests/include/spe"
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}
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component_build_aes_variations() { # ~45s
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# Test that the given .o file builds with all (valid) combinations of the given options.
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#
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# Syntax: build_test_config_combos FILE VALIDATOR_FUNCTION OPT1 OPT2 ...
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#
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# The validator function is the name of a function to validate the combination of options.
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# It may be "" if all combinations are valid.
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# It receives a string containing a combination of options, as passed to the compiler,
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# e.g. "-DOPT1 -DOPT2 ...". It must return 0 iff the combination is valid, non-zero if invalid.
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build_test_config_combos() {
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file=$1
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shift
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validate_options=$1
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shift
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options=("$@")
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# clear all of the options so that they can be overridden on the clang commandline
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for opt in "${options[@]}"; do
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./scripts/config.py unset ${opt}
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done
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# enter the directory containing the target file & strip the dir from the filename
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cd $(dirname ${file})
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file=$(basename ${file})
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# The most common issue is unused variables/functions, so ensure -Wunused is set.
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warning_flags="-Werror -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla -Wformat=2 -Wno-format-nonliteral -Wshadow -Wasm-operand-widths -Wunused"
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# Extract the command generated by the Makefile to build the target file.
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# This ensures that we have any include paths, macro definitions, etc
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# that may be applied by make.
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# Add -fsyntax-only as we only want a syntax check and don't need to generate a file.
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compile_cmd="clang \$(LOCAL_CFLAGS) ${warning_flags} -fsyntax-only -c"
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makefile=$(TMPDIR=. mktemp)
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deps=""
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len=${#options[@]}
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source_file=${file%.o}.c
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targets=0
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echo 'include Makefile' >${makefile}
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for ((i = 0; i < $((2**${len})); i++)); do
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# generate each of 2^n combinations of options
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# each bit of $i is used to determine if options[i] will be set or not
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target="t"
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clang_args=""
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for ((j = 0; j < ${len}; j++)); do
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if (((i >> j) & 1)); then
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opt=-D${options[$j]}
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clang_args="${clang_args} ${opt}"
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target="${target}${opt}"
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fi
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done
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# if combination is not known to be invalid, add it to the makefile
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if [[ -z $validate_options ]] || $validate_options "${clang_args}"; then
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cmd="${compile_cmd} ${clang_args}"
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echo "${target}: ${source_file}; $cmd ${source_file}" >> ${makefile}
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deps="${deps} ${target}"
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((++targets))
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fi
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done
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echo "build_test_config_combos: ${deps}" >> ${makefile}
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# execute all of the commands via Make (probably in parallel)
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make -s -f ${makefile} build_test_config_combos
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echo "$targets targets checked"
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# clean up the temporary makefile
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rm ${makefile}
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}
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validate_aes_config_variations() {
|
||||
if [[ "$1" == *"MBEDTLS_AES_USE_HARDWARE_ONLY"* ]]; then
|
||||
if [[ "$1" == *"MBEDTLS_PADLOCK_C"* ]]; then
|
||||
return 1
|
||||
fi
|
||||
if [[ !(("$HOSTTYPE" == "aarch64" && "$1" != *"MBEDTLS_AESCE_C"*) || \
|
||||
("$HOSTTYPE" == "x86_64" && "$1" != *"MBEDTLS_AESNI_C"*)) ]]; then
|
||||
return 1
|
||||
fi
|
||||
fi
|
||||
return 0
|
||||
}
|
||||
|
||||
component_build_aes_variations() {
|
||||
# 18s - around 90ms per clang invocation on M1 Pro
|
||||
#
|
||||
# aes.o has many #if defined(...) guards that intersect in complex ways.
|
||||
# Test that all the combinations build cleanly. The most common issue is
|
||||
# unused variables/functions, so ensure -Wunused is set.
|
||||
# Test that all the combinations build cleanly.
|
||||
|
||||
msg "build: aes.o for all combinations of relevant config options"
|
||||
|
||||
for a in set unset; do
|
||||
for b in set unset; do
|
||||
for c in set unset; do
|
||||
for d in set unset; do
|
||||
for e in set unset; do
|
||||
for f in set unset; do
|
||||
for g in set unset; do
|
||||
echo ./scripts/config.py $a MBEDTLS_AES_SETKEY_ENC_ALT
|
||||
echo ./scripts/config.py $b MBEDTLS_AES_DECRYPT_ALT
|
||||
echo ./scripts/config.py $c MBEDTLS_AES_ROM_TABLES
|
||||
echo ./scripts/config.py $d MBEDTLS_AES_ENCRYPT_ALT
|
||||
echo ./scripts/config.py $e MBEDTLS_AES_SETKEY_DEC_ALT
|
||||
echo ./scripts/config.py $f MBEDTLS_AES_FEWER_TABLES
|
||||
echo ./scripts/config.py $g MBEDTLS_PADLOCK_C
|
||||
|
||||
./scripts/config.py $a MBEDTLS_AES_SETKEY_ENC_ALT
|
||||
./scripts/config.py $b MBEDTLS_AES_DECRYPT_ALT
|
||||
./scripts/config.py $c MBEDTLS_AES_ROM_TABLES
|
||||
./scripts/config.py $d MBEDTLS_AES_ENCRYPT_ALT
|
||||
./scripts/config.py $e MBEDTLS_AES_SETKEY_DEC_ALT
|
||||
./scripts/config.py $f MBEDTLS_AES_FEWER_TABLES
|
||||
./scripts/config.py $g MBEDTLS_PADLOCK_C
|
||||
|
||||
rm -f library/aes.o
|
||||
make -C library aes.o CC="clang" CFLAGS="-O0 -std=c99 -Werror -Wall -Wextra -Wwrite-strings -Wpointer-arith -Wimplicit-fallthrough -Wshadow -Wvla -Wformat=2 -Wno-format-nonliteral -Wshadow -Wasm-operand-widths -Wunused"
|
||||
done
|
||||
done
|
||||
done
|
||||
done
|
||||
done
|
||||
done
|
||||
done
|
||||
build_test_config_combos library/aes.o validate_aes_config_variations \
|
||||
"MBEDTLS_AES_SETKEY_ENC_ALT" "MBEDTLS_AES_DECRYPT_ALT" \
|
||||
"MBEDTLS_AES_ROM_TABLES" "MBEDTLS_AES_ENCRYPT_ALT" "MBEDTLS_AES_SETKEY_DEC_ALT" \
|
||||
"MBEDTLS_AES_FEWER_TABLES" "MBEDTLS_PADLOCK_C" "MBEDTLS_AES_USE_HARDWARE_ONLY" \
|
||||
"MBEDTLS_AESNI_C" "MBEDTLS_AESCE_C" "MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH"
|
||||
}
|
||||
|
||||
component_test_no_platform () {
|
||||
|
|
|
|||
Loading…
Reference in a new issue