From b048f791a15f2da781a01eba5b09eb9d389f9c11 Mon Sep 17 00:00:00 2001 From: Nico Weber Date: Tue, 4 Aug 2015 12:19:10 -0700 Subject: clang-format all pdfium code. No behavior change. Generated by: find . -name '*.cpp' -o -name '*.h' | \ grep -E -v 'third_party|thirdparties|lpng_v163' | \ xargs ../../buildtools/mac/clang-format -i See thread "tabs vs spaces" on pdfium@googlegroups.com for discussion. BUG=none R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1265503005 . --- core/src/fdrm/crypto/fx_crypt.cpp | 453 +++++++++++++++++++------------------- 1 file changed, 227 insertions(+), 226 deletions(-) (limited to 'core/src/fdrm/crypto/fx_crypt.cpp') diff --git a/core/src/fdrm/crypto/fx_crypt.cpp b/core/src/fdrm/crypto/fx_crypt.cpp index 83a420ad38..170cb577f1 100644 --- a/core/src/fdrm/crypto/fx_crypt.cpp +++ b/core/src/fdrm/crypto/fx_crypt.cpp @@ -10,249 +10,250 @@ extern "C" { #endif struct rc4_state { - int x, y, m[256]; + int x, y, m[256]; }; -void CRYPT_ArcFourSetup(void* context, const uint8_t* key, FX_DWORD length ) -{ - rc4_state *s = (rc4_state*)context; - int i, j, k, *m, a; - s->x = 0; - s->y = 0; - m = s->m; - for( i = 0; i < 256; i++ ) { - m[i] = i; - } - j = k = 0; - for( i = 0; i < 256; i++ ) { - a = m[i]; - j = ( j + a + key[k] ) & 0xFF; - m[i] = m[j]; - m[j] = a; - if( ++k >= (int)length ) { - k = 0; - } +void CRYPT_ArcFourSetup(void* context, const uint8_t* key, FX_DWORD length) { + rc4_state* s = (rc4_state*)context; + int i, j, k, *m, a; + s->x = 0; + s->y = 0; + m = s->m; + for (i = 0; i < 256; i++) { + m[i] = i; + } + j = k = 0; + for (i = 0; i < 256; i++) { + a = m[i]; + j = (j + a + key[k]) & 0xFF; + m[i] = m[j]; + m[j] = a; + if (++k >= (int)length) { + k = 0; } + } } -void CRYPT_ArcFourCrypt(void* context, unsigned char *data, FX_DWORD length ) -{ - struct rc4_state* s = (struct rc4_state*)context; - int i, x, y, *m, a, b; - x = s->x; - y = s->y; - m = s->m; - for( i = 0; i < (int)length; i++ ) { - x = ( x + 1 ) & 0xFF; - a = m[x]; - y = ( y + a ) & 0xFF; - m[x] = b = m[y]; - m[y] = a; - data[i] ^= m[( a + b ) & 0xFF]; - } - s->x = x; - s->y = y; +void CRYPT_ArcFourCrypt(void* context, unsigned char* data, FX_DWORD length) { + struct rc4_state* s = (struct rc4_state*)context; + int i, x, y, *m, a, b; + x = s->x; + y = s->y; + m = s->m; + for (i = 0; i < (int)length; i++) { + x = (x + 1) & 0xFF; + a = m[x]; + y = (y + a) & 0xFF; + m[x] = b = m[y]; + m[y] = a; + data[i] ^= m[(a + b) & 0xFF]; + } + s->x = x; + s->y = y; } -void CRYPT_ArcFourCryptBlock(uint8_t* pData, FX_DWORD size, const uint8_t* key, FX_DWORD keylen) -{ - rc4_state s; - CRYPT_ArcFourSetup(&s, key, keylen); - CRYPT_ArcFourCrypt(&s, pData, size); +void CRYPT_ArcFourCryptBlock(uint8_t* pData, + FX_DWORD size, + const uint8_t* key, + FX_DWORD keylen) { + rc4_state s; + CRYPT_ArcFourSetup(&s, key, keylen); + CRYPT_ArcFourCrypt(&s, pData, size); } struct md5_context { - FX_DWORD total[2]; - FX_DWORD state[4]; - uint8_t buffer[64]; + FX_DWORD total[2]; + FX_DWORD state[4]; + uint8_t buffer[64]; }; -#define GET_FX_DWORD(n,b,i) \ - { \ - (n) = (FX_DWORD) ((uint8_t *) b)[(i)] \ - | (((FX_DWORD) ((uint8_t *) b)[(i)+1]) << 8) \ - | (((FX_DWORD) ((uint8_t *) b)[(i)+2]) << 16) \ - | (((FX_DWORD) ((uint8_t *) b)[(i)+3]) << 24); \ - } -#define PUT_FX_DWORD(n,b,i) \ - { \ - (((uint8_t *) b)[(i)] ) = (uint8_t) (((n) ) & 0xFF); \ - (((uint8_t *) b)[(i)+1]) = (uint8_t) (((n) >> 8) & 0xFF); \ - (((uint8_t *) b)[(i)+2]) = (uint8_t) (((n) >> 16) & 0xFF); \ - (((uint8_t *) b)[(i)+3]) = (uint8_t) (((n) >> 24) & 0xFF); \ - } -void md5_process( struct md5_context *ctx, const uint8_t data[64] ) -{ - FX_DWORD A, B, C, D, X[16]; - GET_FX_DWORD( X[0], data, 0 ); - GET_FX_DWORD( X[1], data, 4 ); - GET_FX_DWORD( X[2], data, 8 ); - GET_FX_DWORD( X[3], data, 12 ); - GET_FX_DWORD( X[4], data, 16 ); - GET_FX_DWORD( X[5], data, 20 ); - GET_FX_DWORD( X[6], data, 24 ); - GET_FX_DWORD( X[7], data, 28 ); - GET_FX_DWORD( X[8], data, 32 ); - GET_FX_DWORD( X[9], data, 36 ); - GET_FX_DWORD( X[10], data, 40 ); - GET_FX_DWORD( X[11], data, 44 ); - GET_FX_DWORD( X[12], data, 48 ); - GET_FX_DWORD( X[13], data, 52 ); - GET_FX_DWORD( X[14], data, 56 ); - GET_FX_DWORD( X[15], data, 60 ); -#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) -#define P(a,b,c,d,k,s,t) \ - { \ - a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \ - } - A = ctx->state[0]; - B = ctx->state[1]; - C = ctx->state[2]; - D = ctx->state[3]; -#define F(x,y,z) (z ^ (x & (y ^ z))) - P( A, B, C, D, 0, 7, 0xD76AA478 ); - P( D, A, B, C, 1, 12, 0xE8C7B756 ); - P( C, D, A, B, 2, 17, 0x242070DB ); - P( B, C, D, A, 3, 22, 0xC1BDCEEE ); - P( A, B, C, D, 4, 7, 0xF57C0FAF ); - P( D, A, B, C, 5, 12, 0x4787C62A ); - P( C, D, A, B, 6, 17, 0xA8304613 ); - P( B, C, D, A, 7, 22, 0xFD469501 ); - P( A, B, C, D, 8, 7, 0x698098D8 ); - P( D, A, B, C, 9, 12, 0x8B44F7AF ); - P( C, D, A, B, 10, 17, 0xFFFF5BB1 ); - P( B, C, D, A, 11, 22, 0x895CD7BE ); - P( A, B, C, D, 12, 7, 0x6B901122 ); - P( D, A, B, C, 13, 12, 0xFD987193 ); - P( C, D, A, B, 14, 17, 0xA679438E ); - P( B, C, D, A, 15, 22, 0x49B40821 ); +#define GET_FX_DWORD(n, b, i) \ + { \ + (n) = (FX_DWORD)((uint8_t*)b)[(i)] | \ + (((FX_DWORD)((uint8_t*)b)[(i) + 1]) << 8) | \ + (((FX_DWORD)((uint8_t*)b)[(i) + 2]) << 16) | \ + (((FX_DWORD)((uint8_t*)b)[(i) + 3]) << 24); \ + } +#define PUT_FX_DWORD(n, b, i) \ + { \ + (((uint8_t*)b)[(i)]) = (uint8_t)(((n)) & 0xFF); \ + (((uint8_t*)b)[(i) + 1]) = (uint8_t)(((n) >> 8) & 0xFF); \ + (((uint8_t*)b)[(i) + 2]) = (uint8_t)(((n) >> 16) & 0xFF); \ + (((uint8_t*)b)[(i) + 3]) = (uint8_t)(((n) >> 24) & 0xFF); \ + } +void md5_process(struct md5_context* ctx, const uint8_t data[64]) { + FX_DWORD A, B, C, D, X[16]; + GET_FX_DWORD(X[0], data, 0); + GET_FX_DWORD(X[1], data, 4); + GET_FX_DWORD(X[2], data, 8); + GET_FX_DWORD(X[3], data, 12); + GET_FX_DWORD(X[4], data, 16); + GET_FX_DWORD(X[5], data, 20); + GET_FX_DWORD(X[6], data, 24); + GET_FX_DWORD(X[7], data, 28); + GET_FX_DWORD(X[8], data, 32); + GET_FX_DWORD(X[9], data, 36); + GET_FX_DWORD(X[10], data, 40); + GET_FX_DWORD(X[11], data, 44); + GET_FX_DWORD(X[12], data, 48); + GET_FX_DWORD(X[13], data, 52); + GET_FX_DWORD(X[14], data, 56); + GET_FX_DWORD(X[15], data, 60); +#define S(x, n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n))) +#define P(a, b, c, d, k, s, t) \ + { \ + a += F(b, c, d) + X[k] + t; \ + a = S(a, s) + b; \ + } + A = ctx->state[0]; + B = ctx->state[1]; + C = ctx->state[2]; + D = ctx->state[3]; +#define F(x, y, z) (z ^ (x & (y ^ z))) + P(A, B, C, D, 0, 7, 0xD76AA478); + P(D, A, B, C, 1, 12, 0xE8C7B756); + P(C, D, A, B, 2, 17, 0x242070DB); + P(B, C, D, A, 3, 22, 0xC1BDCEEE); + P(A, B, C, D, 4, 7, 0xF57C0FAF); + P(D, A, B, C, 5, 12, 0x4787C62A); + P(C, D, A, B, 6, 17, 0xA8304613); + P(B, C, D, A, 7, 22, 0xFD469501); + P(A, B, C, D, 8, 7, 0x698098D8); + P(D, A, B, C, 9, 12, 0x8B44F7AF); + P(C, D, A, B, 10, 17, 0xFFFF5BB1); + P(B, C, D, A, 11, 22, 0x895CD7BE); + P(A, B, C, D, 12, 7, 0x6B901122); + P(D, A, B, C, 13, 12, 0xFD987193); + P(C, D, A, B, 14, 17, 0xA679438E); + P(B, C, D, A, 15, 22, 0x49B40821); #undef F -#define F(x,y,z) (y ^ (z & (x ^ y))) - P( A, B, C, D, 1, 5, 0xF61E2562 ); - P( D, A, B, C, 6, 9, 0xC040B340 ); - P( C, D, A, B, 11, 14, 0x265E5A51 ); - P( B, C, D, A, 0, 20, 0xE9B6C7AA ); - P( A, B, C, D, 5, 5, 0xD62F105D ); - P( D, A, B, C, 10, 9, 0x02441453 ); - P( C, D, A, B, 15, 14, 0xD8A1E681 ); - P( B, C, D, A, 4, 20, 0xE7D3FBC8 ); - P( A, B, C, D, 9, 5, 0x21E1CDE6 ); - P( D, A, B, C, 14, 9, 0xC33707D6 ); - P( C, D, A, B, 3, 14, 0xF4D50D87 ); - P( B, C, D, A, 8, 20, 0x455A14ED ); - P( A, B, C, D, 13, 5, 0xA9E3E905 ); - P( D, A, B, C, 2, 9, 0xFCEFA3F8 ); - P( C, D, A, B, 7, 14, 0x676F02D9 ); - P( B, C, D, A, 12, 20, 0x8D2A4C8A ); +#define F(x, y, z) (y ^ (z & (x ^ y))) + P(A, B, C, D, 1, 5, 0xF61E2562); + P(D, A, B, C, 6, 9, 0xC040B340); + P(C, D, A, B, 11, 14, 0x265E5A51); + P(B, C, D, A, 0, 20, 0xE9B6C7AA); + P(A, B, C, D, 5, 5, 0xD62F105D); + P(D, A, B, C, 10, 9, 0x02441453); + P(C, D, A, B, 15, 14, 0xD8A1E681); + P(B, C, D, A, 4, 20, 0xE7D3FBC8); + P(A, B, C, D, 9, 5, 0x21E1CDE6); + P(D, A, B, C, 14, 9, 0xC33707D6); + P(C, D, A, B, 3, 14, 0xF4D50D87); + P(B, C, D, A, 8, 20, 0x455A14ED); + P(A, B, C, D, 13, 5, 0xA9E3E905); + P(D, A, B, C, 2, 9, 0xFCEFA3F8); + P(C, D, A, B, 7, 14, 0x676F02D9); + P(B, C, D, A, 12, 20, 0x8D2A4C8A); #undef F -#define F(x,y,z) (x ^ y ^ z) - P( A, B, C, D, 5, 4, 0xFFFA3942 ); - P( D, A, B, C, 8, 11, 0x8771F681 ); - P( C, D, A, B, 11, 16, 0x6D9D6122 ); - P( B, C, D, A, 14, 23, 0xFDE5380C ); - P( A, B, C, D, 1, 4, 0xA4BEEA44 ); - P( D, A, B, C, 4, 11, 0x4BDECFA9 ); - P( C, D, A, B, 7, 16, 0xF6BB4B60 ); - P( B, C, D, A, 10, 23, 0xBEBFBC70 ); - P( A, B, C, D, 13, 4, 0x289B7EC6 ); - P( D, A, B, C, 0, 11, 0xEAA127FA ); - P( C, D, A, B, 3, 16, 0xD4EF3085 ); - P( B, C, D, A, 6, 23, 0x04881D05 ); - P( A, B, C, D, 9, 4, 0xD9D4D039 ); - P( D, A, B, C, 12, 11, 0xE6DB99E5 ); - P( C, D, A, B, 15, 16, 0x1FA27CF8 ); - P( B, C, D, A, 2, 23, 0xC4AC5665 ); +#define F(x, y, z) (x ^ y ^ z) + P(A, B, C, D, 5, 4, 0xFFFA3942); + P(D, A, B, C, 8, 11, 0x8771F681); + P(C, D, A, B, 11, 16, 0x6D9D6122); + P(B, C, D, A, 14, 23, 0xFDE5380C); + P(A, B, C, D, 1, 4, 0xA4BEEA44); + P(D, A, B, C, 4, 11, 0x4BDECFA9); + P(C, D, A, B, 7, 16, 0xF6BB4B60); + P(B, C, D, A, 10, 23, 0xBEBFBC70); + P(A, B, C, D, 13, 4, 0x289B7EC6); + P(D, A, B, C, 0, 11, 0xEAA127FA); + P(C, D, A, B, 3, 16, 0xD4EF3085); + P(B, C, D, A, 6, 23, 0x04881D05); + P(A, B, C, D, 9, 4, 0xD9D4D039); + P(D, A, B, C, 12, 11, 0xE6DB99E5); + P(C, D, A, B, 15, 16, 0x1FA27CF8); + P(B, C, D, A, 2, 23, 0xC4AC5665); #undef F -#define F(x,y,z) (y ^ (x | ~z)) - P( A, B, C, D, 0, 6, 0xF4292244 ); - P( D, A, B, C, 7, 10, 0x432AFF97 ); - P( C, D, A, B, 14, 15, 0xAB9423A7 ); - P( B, C, D, A, 5, 21, 0xFC93A039 ); - P( A, B, C, D, 12, 6, 0x655B59C3 ); - P( D, A, B, C, 3, 10, 0x8F0CCC92 ); - P( C, D, A, B, 10, 15, 0xFFEFF47D ); - P( B, C, D, A, 1, 21, 0x85845DD1 ); - P( A, B, C, D, 8, 6, 0x6FA87E4F ); - P( D, A, B, C, 15, 10, 0xFE2CE6E0 ); - P( C, D, A, B, 6, 15, 0xA3014314 ); - P( B, C, D, A, 13, 21, 0x4E0811A1 ); - P( A, B, C, D, 4, 6, 0xF7537E82 ); - P( D, A, B, C, 11, 10, 0xBD3AF235 ); - P( C, D, A, B, 2, 15, 0x2AD7D2BB ); - P( B, C, D, A, 9, 21, 0xEB86D391 ); +#define F(x, y, z) (y ^ (x | ~z)) + P(A, B, C, D, 0, 6, 0xF4292244); + P(D, A, B, C, 7, 10, 0x432AFF97); + P(C, D, A, B, 14, 15, 0xAB9423A7); + P(B, C, D, A, 5, 21, 0xFC93A039); + P(A, B, C, D, 12, 6, 0x655B59C3); + P(D, A, B, C, 3, 10, 0x8F0CCC92); + P(C, D, A, B, 10, 15, 0xFFEFF47D); + P(B, C, D, A, 1, 21, 0x85845DD1); + P(A, B, C, D, 8, 6, 0x6FA87E4F); + P(D, A, B, C, 15, 10, 0xFE2CE6E0); + P(C, D, A, B, 6, 15, 0xA3014314); + P(B, C, D, A, 13, 21, 0x4E0811A1); + P(A, B, C, D, 4, 6, 0xF7537E82); + P(D, A, B, C, 11, 10, 0xBD3AF235); + P(C, D, A, B, 2, 15, 0x2AD7D2BB); + P(B, C, D, A, 9, 21, 0xEB86D391); #undef F - ctx->state[0] += A; - ctx->state[1] += B; - ctx->state[2] += C; - ctx->state[3] += D; + ctx->state[0] += A; + ctx->state[1] += B; + ctx->state[2] += C; + ctx->state[3] += D; } -void CRYPT_MD5Start(void* context) -{ - struct md5_context *ctx = (struct md5_context*)context; - ctx->total[0] = 0; - ctx->total[1] = 0; - ctx->state[0] = 0x67452301; - ctx->state[1] = 0xEFCDAB89; - ctx->state[2] = 0x98BADCFE; - ctx->state[3] = 0x10325476; +void CRYPT_MD5Start(void* context) { + struct md5_context* ctx = (struct md5_context*)context; + ctx->total[0] = 0; + ctx->total[1] = 0; + ctx->state[0] = 0x67452301; + ctx->state[1] = 0xEFCDAB89; + ctx->state[2] = 0x98BADCFE; + ctx->state[3] = 0x10325476; } -void CRYPT_MD5Update(void* pctx, const uint8_t* input, FX_DWORD length ) -{ - struct md5_context *ctx = (struct md5_context *)pctx; - FX_DWORD left, fill; - if( ! length ) { - return; - } - left = ( ctx->total[0] >> 3 ) & 0x3F; - fill = 64 - left; - ctx->total[0] += length << 3; - ctx->total[1] += length >> 29; - ctx->total[0] &= 0xFFFFFFFF; - ctx->total[1] += ctx->total[0] < length << 3; - if( left && length >= fill ) { - FXSYS_memcpy( (void *) (ctx->buffer + left), (void *) input, fill ); - md5_process( ctx, ctx->buffer ); - length -= fill; - input += fill; - left = 0; - } - while( length >= 64 ) { - md5_process( ctx, input ); - length -= 64; - input += 64; - } - if( length ) { - FXSYS_memcpy( (void *) (ctx->buffer + left), (void *) input, length ); - } +void CRYPT_MD5Update(void* pctx, const uint8_t* input, FX_DWORD length) { + struct md5_context* ctx = (struct md5_context*)pctx; + FX_DWORD left, fill; + if (!length) { + return; + } + left = (ctx->total[0] >> 3) & 0x3F; + fill = 64 - left; + ctx->total[0] += length << 3; + ctx->total[1] += length >> 29; + ctx->total[0] &= 0xFFFFFFFF; + ctx->total[1] += ctx->total[0] < length << 3; + if (left && length >= fill) { + FXSYS_memcpy((void*)(ctx->buffer + left), (void*)input, fill); + md5_process(ctx, ctx->buffer); + length -= fill; + input += fill; + left = 0; + } + while (length >= 64) { + md5_process(ctx, input); + length -= 64; + input += 64; + } + if (length) { + FXSYS_memcpy((void*)(ctx->buffer + left), (void*)input, length); + } } const uint8_t md5_padding[64] = { - 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 -}; -void CRYPT_MD5Finish(void* pctx, uint8_t digest[16] ) -{ - struct md5_context *ctx = (struct md5_context *)pctx; - FX_DWORD last, padn; - uint8_t msglen[8]; - PUT_FX_DWORD( ctx->total[0], msglen, 0 ); - PUT_FX_DWORD( ctx->total[1], msglen, 4 ); - last = ( ctx->total[0] >> 3 ) & 0x3F; - padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last ); - CRYPT_MD5Update( ctx, md5_padding, padn ); - CRYPT_MD5Update( ctx, msglen, 8 ); - PUT_FX_DWORD( ctx->state[0], digest, 0 ); - PUT_FX_DWORD( ctx->state[1], digest, 4 ); - PUT_FX_DWORD( ctx->state[2], digest, 8 ); - PUT_FX_DWORD( ctx->state[3], digest, 12 ); + 0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +void CRYPT_MD5Finish(void* pctx, uint8_t digest[16]) { + struct md5_context* ctx = (struct md5_context*)pctx; + FX_DWORD last, padn; + uint8_t msglen[8]; + PUT_FX_DWORD(ctx->total[0], msglen, 0); + PUT_FX_DWORD(ctx->total[1], msglen, 4); + last = (ctx->total[0] >> 3) & 0x3F; + padn = (last < 56) ? (56 - last) : (120 - last); + CRYPT_MD5Update(ctx, md5_padding, padn); + CRYPT_MD5Update(ctx, msglen, 8); + PUT_FX_DWORD(ctx->state[0], digest, 0); + PUT_FX_DWORD(ctx->state[1], digest, 4); + PUT_FX_DWORD(ctx->state[2], digest, 8); + PUT_FX_DWORD(ctx->state[3], digest, 12); } -void CRYPT_MD5Generate(const uint8_t* input, FX_DWORD length, uint8_t digest[16]) -{ - md5_context ctx; - CRYPT_MD5Start(&ctx); - CRYPT_MD5Update(&ctx, input, length); - CRYPT_MD5Finish(&ctx, digest); +void CRYPT_MD5Generate(const uint8_t* input, + FX_DWORD length, + uint8_t digest[16]) { + md5_context ctx; + CRYPT_MD5Start(&ctx); + CRYPT_MD5Update(&ctx, input, length); + CRYPT_MD5Finish(&ctx, digest); } -static FX_BOOL (*g_PubKeyDecryptor)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len) = NULL; -void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(const uint8_t* pData, FX_DWORD size, uint8_t* data_buf, FX_DWORD& data_len)) -{ - g_PubKeyDecryptor = func; +static FX_BOOL (*g_PubKeyDecryptor)(const uint8_t* pData, + FX_DWORD size, + uint8_t* data_buf, + FX_DWORD& data_len) = NULL; +void CRYPT_SetPubKeyDecryptor(FX_BOOL (*func)(const uint8_t* pData, + FX_DWORD size, + uint8_t* data_buf, + FX_DWORD& data_len)) { + g_PubKeyDecryptor = func; } #ifdef __cplusplus }; -- cgit v1.2.3