mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
957c61cbbf
This change upgrades to GCC 12.3 and GNU binutils 2.42. The GNU linker appears to have changed things so that only a single de-duplicated str table is present in the binary, and it gets placed wherever the linker wants, regardless of what the linker script says. To cope with that we need to stop using .ident to embed licenses. As such, this change does significant work to revamp how third party licenses are defined in the codebase, using `.section .notice,"aR",@progbits`. This new GCC 12.3 toolchain has support for GNU indirect functions. It lets us support __target_clones__ for the first time. This is used for optimizing the performance of libc string functions such as strlen and friends so far on x86, by ensuring AVX systems favor a second codepath that uses VEX encoding. It shaves some latency off certain operations. It's a useful feature to have for scientific computing for the reasons explained by the test/libcxx/openmp_test.cc example which compiles for fifteen different microarchitectures. Thanks to the upgrades, it's now also possible to use newer instruction sets, such as AVX512FP16, VNNI. Cosmo now uses the %gs register on x86 by default for TLS. Doing it is helpful for any program that links `cosmo_dlopen()`. Such programs had to recompile their binaries at startup to change the TLS instructions. That's not great, since it means every page in the executable needs to be faulted. The work of rewriting TLS-related x86 opcodes, is moved to fixupobj.com instead. This is great news for MacOS x86 users, since we previously needed to morph the binary every time for that platform but now that's no longer necessary. The only platforms where we need fixup of TLS x86 opcodes at runtime are now Windows, OpenBSD, and NetBSD. On Windows we morph TLS to point deeper into the TIB, based on a TlsAlloc assignment, and on OpenBSD/NetBSD we morph %gs back into %fs since the kernels do not allow us to specify a value for the %gs register. OpenBSD users are now required to use APE Loader to run Cosmo binaries and assimilation is no longer possible. OpenBSD kernel needs to change to allow programs to specify a value for the %gs register, or it needs to stop marking executable pages loaded by the kernel as mimmutable(). This release fixes __constructor__, .ctor, .init_array, and lastly the .preinit_array so they behave the exact same way as glibc. We no longer use hex constants to define math.h symbols like M_PI.
396 lines
12 KiB
C
396 lines
12 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:4;coding:utf-8 -*-│
|
|
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
│ Copyright The Mbed TLS Contributors │
|
|
│ │
|
|
│ Licensed under the Apache License, Version 2.0 (the "License"); │
|
|
│ you may not use this file except in compliance with the License. │
|
|
│ You may obtain a copy of the License at │
|
|
│ │
|
|
│ http://www.apache.org/licenses/LICENSE-2.0 │
|
|
│ │
|
|
│ Unless required by applicable law or agreed to in writing, software │
|
|
│ distributed under the License is distributed on an "AS IS" BASIS, │
|
|
│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
|
|
│ See the License for the specific language governing permissions and │
|
|
│ limitations under the License. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "third_party/mbedtls/md5.h"
|
|
#include "libc/serialize.h"
|
|
#include "libc/str/str.h"
|
|
#include "third_party/mbedtls/common.h"
|
|
#include "third_party/mbedtls/error.h"
|
|
#include "third_party/mbedtls/md.h"
|
|
#include "third_party/mbedtls/platform.h"
|
|
__static_yoink("mbedtls_notice");
|
|
|
|
/*
|
|
* RFC 1321 compliant MD5 implementation
|
|
*
|
|
* Copyright The Mbed TLS Contributors
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may
|
|
* not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/*
|
|
* The MD5 algorithm was designed by Ron Rivest in 1991.
|
|
*
|
|
* http://www.ietf.org/rfc/rfc1321.txt
|
|
*/
|
|
|
|
#if !defined(MBEDTLS_MD5_ALT)
|
|
|
|
#define GET_UINT32_LE(n,b,i) (n) = READ32LE((b) + (i))
|
|
#define PUT_UINT32_LE(n,b,i) WRITE32LE((b) + (i), n)
|
|
|
|
/**
|
|
* \brief Clone (the state of) an MD5 context
|
|
*
|
|
* \param dst The destination context
|
|
* \param src The context to be cloned
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*/
|
|
void mbedtls_md5_clone( mbedtls_md5_context *dst,
|
|
const mbedtls_md5_context *src )
|
|
{
|
|
*dst = *src;
|
|
}
|
|
|
|
/**
|
|
* \brief MD5 context setup
|
|
*
|
|
* \param ctx context to be initialized
|
|
*
|
|
* \return 0 if successful
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*/
|
|
int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
|
|
{
|
|
ctx->total[0] = 0;
|
|
ctx->total[1] = 0;
|
|
ctx->state[0] = 0x67452301;
|
|
ctx->state[1] = 0xEFCDAB89;
|
|
ctx->state[2] = 0x98BADCFE;
|
|
ctx->state[3] = 0x10325476;
|
|
return( 0 );
|
|
}
|
|
|
|
#if !defined(MBEDTLS_MD5_PROCESS_ALT)
|
|
|
|
/**
|
|
* \brief MD5 process data block (internal use only)
|
|
*
|
|
* \param ctx MD5 context
|
|
* \param data buffer holding one block of data
|
|
*
|
|
* \return 0 if successful
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*
|
|
*/
|
|
int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
|
|
const unsigned char data[64] )
|
|
{
|
|
register uint32_t A, B, C, D;
|
|
|
|
#define S(x,n) \
|
|
( ( (x) << (n) ) | ( ( (x) & 0xFFFFFFFF) >> ( 32 - (n) ) ) )
|
|
|
|
#define P(a,b,c,d,k,s,t) \
|
|
a += F(b, c, d) + READ32LE(data + k * 4) + (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 );
|
|
|
|
#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 );
|
|
|
|
#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 );
|
|
|
|
#undef F
|
|
|
|
ctx->state[0] += A;
|
|
ctx->state[1] += B;
|
|
ctx->state[2] += C;
|
|
ctx->state[3] += D;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
#endif /* !MBEDTLS_MD5_PROCESS_ALT */
|
|
|
|
/**
|
|
* \brief MD5 process buffer
|
|
*
|
|
* \param ctx MD5 context
|
|
* \param input buffer holding the data
|
|
* \param ilen length of the input data
|
|
*
|
|
* \return 0 if successful
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*/
|
|
int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
|
|
const unsigned char *input,
|
|
size_t ilen )
|
|
{
|
|
int ret = MBEDTLS_ERR_THIS_CORRUPTION;
|
|
size_t fill;
|
|
uint32_t left;
|
|
|
|
if( ilen == 0 )
|
|
return( 0 );
|
|
|
|
left = ctx->total[0] & 0x3F;
|
|
fill = 64 - left;
|
|
|
|
ctx->total[0] += (uint32_t) ilen;
|
|
ctx->total[0] &= 0xFFFFFFFF;
|
|
|
|
if( ctx->total[0] < (uint32_t) ilen )
|
|
ctx->total[1]++;
|
|
|
|
if( left && ilen >= fill )
|
|
{
|
|
memcpy( (void *) (ctx->buffer + left), input, fill );
|
|
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
|
|
return( ret );
|
|
|
|
input += fill;
|
|
ilen -= fill;
|
|
left = 0;
|
|
}
|
|
|
|
while( ilen >= 64 )
|
|
{
|
|
if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
|
|
return( ret );
|
|
|
|
input += 64;
|
|
ilen -= 64;
|
|
}
|
|
|
|
if( ilen > 0 )
|
|
{
|
|
memcpy( (void *) (ctx->buffer + left), input, ilen );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/**
|
|
* \brief MD5 final digest
|
|
*
|
|
* \param ctx MD5 context
|
|
* \param output MD5 checksum result
|
|
*
|
|
* \return 0 if successful
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*/
|
|
int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
|
|
unsigned char output[16] )
|
|
{
|
|
int ret = MBEDTLS_ERR_THIS_CORRUPTION;
|
|
uint32_t used;
|
|
uint32_t high, low;
|
|
|
|
/*
|
|
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
|
|
*/
|
|
used = ctx->total[0] & 0x3F;
|
|
|
|
ctx->buffer[used++] = 0x80;
|
|
|
|
if( used <= 56 )
|
|
{
|
|
/* Enough room for padding + length in current block */
|
|
mbedtls_platform_zeroize( ctx->buffer + used, 56 - used );
|
|
}
|
|
else
|
|
{
|
|
/* We'll need an extra block */
|
|
mbedtls_platform_zeroize( ctx->buffer + used, 64 - used );
|
|
|
|
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
|
|
return( ret );
|
|
|
|
mbedtls_platform_zeroize( ctx->buffer, 56 );
|
|
}
|
|
|
|
/*
|
|
* Add message length
|
|
*/
|
|
high = ( ctx->total[0] >> 29 )
|
|
| ( ctx->total[1] << 3 );
|
|
low = ( ctx->total[0] << 3 );
|
|
|
|
PUT_UINT32_LE( low, ctx->buffer, 56 );
|
|
PUT_UINT32_LE( high, ctx->buffer, 60 );
|
|
|
|
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
|
|
return( ret );
|
|
|
|
/*
|
|
* Output final state
|
|
*/
|
|
PUT_UINT32_LE( ctx->state[0], output, 0 );
|
|
PUT_UINT32_LE( ctx->state[1], output, 4 );
|
|
PUT_UINT32_LE( ctx->state[2], output, 8 );
|
|
PUT_UINT32_LE( ctx->state[3], output, 12 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
#endif /* !MBEDTLS_MD5_ALT */
|
|
|
|
/**
|
|
* \brief Output = MD5( input buffer )
|
|
*
|
|
* \param input buffer holding the data
|
|
* \param ilen length of the input data
|
|
* \param output MD5 checksum result
|
|
*
|
|
* \return 0 if successful
|
|
*
|
|
* \warning MD5 is considered a weak message digest and its use
|
|
* constitutes a security risk. We recommend considering
|
|
* stronger message digests instead.
|
|
*/
|
|
int mbedtls_md5_ret( const void *input,
|
|
size_t ilen,
|
|
unsigned char output[16] )
|
|
{
|
|
int ret = MBEDTLS_ERR_THIS_CORRUPTION;
|
|
mbedtls_md5_context ctx;
|
|
|
|
mbedtls_md5_init( &ctx );
|
|
|
|
if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
|
|
goto exit;
|
|
|
|
if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
|
|
goto exit;
|
|
|
|
if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
|
|
goto exit;
|
|
|
|
exit:
|
|
mbedtls_md5_free( &ctx );
|
|
|
|
return( ret );
|
|
}
|
|
|
|
const mbedtls_md_info_t mbedtls_md5_info = {
|
|
"MD5",
|
|
MBEDTLS_MD_MD5,
|
|
16,
|
|
64,
|
|
(void *)mbedtls_md5_starts_ret,
|
|
(void *)mbedtls_md5_update_ret,
|
|
(void *)mbedtls_internal_md5_process,
|
|
(void *)mbedtls_md5_finish_ret,
|
|
(void *)mbedtls_md5_ret,
|
|
};
|