mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-10-04 13:41:02 +00:00
ae5d06dc53
- 10.5% reduction of o//depend dependency graph
- 8.8% reduction in latency of make command
- Fix issue with temporary file cleanup
There's a new -w option in compile.com that turns off the recent
Landlock output path workaround for "good commands" which do not
unlink() the output file like GNU tooling does.
Our new GNU Make unveil sandboxing appears to have zero overhead
in the grand scheme of things. Full builds are pretty fast since
the only thing that's actually slowed us down is probably libcxx
make -j16 MODE=rel
RL: took 85,732,063µs wall time
RL: ballooned to 323,612kb in size
RL: needed 828,560,521µs cpu (11% kernel)
RL: caused 39,080,670 page faults (99% memcpy)
RL: 350,073 context switches (72% consensual)
RL: performed 0 reads and 11,494,960 write i/o operations
pledge() and unveil() no longer consider ENOSYS to be an error.
These functions have also been added to Python's cosmo module.
This change also removes some WIN32 APIs and System Five magnums
which we're not using and it's doubtful anyone else would be too
413 lines
13 KiB
C
413 lines
13 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:4;tab-width:4;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright The Mbed TLS Contributors │
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│ │
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│ Licensed under the Apache License, Version 2.0 (the "License"); │
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│ you may not use this file except in compliance with the License. │
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│ You may obtain a copy of the License at │
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│ │
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│ http://www.apache.org/licenses/LICENSE-2.0 │
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│ │
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│ Unless required by applicable law or agreed to in writing, software │
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│ distributed under the License is distributed on an "AS IS" BASIS, │
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│ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. │
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│ See the License for the specific language governing permissions and │
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│ limitations under the License. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/str/str.h"
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#include "third_party/mbedtls/common.h"
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#include "third_party/mbedtls/debug.h"
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#include "third_party/mbedtls/error.h"
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#include "third_party/mbedtls/platform.h"
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asm(".ident\t\"\\n\\n\
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Mbed TLS (Apache 2.0)\\n\
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Copyright ARM Limited\\n\
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Copyright Mbed TLS Contributors\"");
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asm(".include \"libc/disclaimer.inc\"");
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/* clang-format off */
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char mbedtls_debug_threshold;
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void mbedtls_debug_set_threshold( int threshold )
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{
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mbedtls_debug_threshold = threshold;
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}
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#if defined(MBEDTLS_DEBUG_C)
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#define DEBUG_BUF_SIZE 512
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/*
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* All calls to f_dbg must be made via this function
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*/
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static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *str )
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{
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ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str );
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}
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MBEDTLS_PRINTF_ATTRIBUTE(5, 6)
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void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *format, ... )
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{
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va_list argp;
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char str[DEBUG_BUF_SIZE];
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int ret = MBEDTLS_ERR_THIS_CORRUPTION;
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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va_start( argp, format );
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ret = mbedtls_vsnprintf( str, DEBUG_BUF_SIZE, format, argp );
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va_end( argp );
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if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 )
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{
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str[ret] = '\0';
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}
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debug_send_line( ssl, level, file, line, str );
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}
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void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, int ret )
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{
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char str[DEBUG_BUF_SIZE];
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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/*
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* With non-blocking I/O and examples that just retry immediately,
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* the logs would be quickly flooded with WANT_READ, so ignore that.
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* Don't ignore WANT_WRITE however, since is is usually rare.
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*/
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if( ret == MBEDTLS_ERR_SSL_WANT_READ )
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return;
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mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)",
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text, ret, (unsigned int) -ret );
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debug_send_line( ssl, level, file, line, str );
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}
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void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line, const char *text,
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const unsigned char *buf, size_t len )
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{
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char str[DEBUG_BUF_SIZE];
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char txt[17];
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size_t i, idx = 0;
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)",
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text, (unsigned int) len );
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debug_send_line( ssl, level, file, line, str );
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idx = 0;
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mbedtls_platform_zeroize( txt, sizeof( txt ) );
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for( i = 0; i < len; i++ )
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{
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if( i >= 4096 )
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break;
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if( i % 16 == 0 )
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{
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if( i > 0 )
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{
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mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s", txt );
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debug_send_line( ssl, level, file, line, str );
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idx = 0;
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mbedtls_platform_zeroize( txt, sizeof( txt ) );
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}
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idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ",
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(unsigned int) i );
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}
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idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x",
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(unsigned int) buf[i] );
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txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ;
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}
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if( len > 0 )
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{
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for( /* i = i */; i % 16 != 0; i++ )
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idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " );
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mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s", txt );
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debug_send_line( ssl, level, file, line, str );
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}
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}
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#if defined(MBEDTLS_ECP_C)
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void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_ecp_point *X )
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{
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char str[DEBUG_BUF_SIZE];
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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mbedtls_snprintf( str, sizeof( str ), "%s(X)", text );
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mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X );
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mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text );
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mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y );
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}
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#endif /* MBEDTLS_ECP_C */
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#if defined(MBEDTLS_BIGNUM_C)
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void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_mpi *X )
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{
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char str[DEBUG_BUF_SIZE];
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int j, k, zeros = 1;
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size_t i, n, idx = 0;
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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NULL == X ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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/* TODO(jart): wut */
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if (!X->n) {
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mbedtls_snprintf(str, sizeof(str), "value of '%s' has empty X->n", text);
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debug_send_line(ssl, level, file, line, str);
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return;
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}
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for( n = X->n - 1; n > 0; n-- )
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if( X->p[n] != 0 )
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break;
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for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- )
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if( ( ( X->p[n] >> j ) & 1 ) != 0 )
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break;
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mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:",
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text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) );
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debug_send_line( ssl, level, file, line, str );
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idx = 0;
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for( i = n + 1, j = 0; i > 0; i-- )
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{
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if( zeros && X->p[i - 1] == 0 )
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continue;
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for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- )
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{
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if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 )
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continue;
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else
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zeros = 0;
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if( j % 16 == 0 )
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{
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if( j > 0 )
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{
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debug_send_line( ssl, level, file, line, str );
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idx = 0;
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}
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}
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idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int)
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( X->p[i - 1] >> ( k << 3 ) ) & 0xFF );
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j++;
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}
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}
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if( zeros == 1 )
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idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" );
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debug_send_line( ssl, level, file, line, str );
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}
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#endif /* MBEDTLS_BIGNUM_C */
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#if defined(MBEDTLS_X509_CRT_PARSE_C)
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static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_pk_context *pk )
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{
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size_t i;
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mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
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char name[16];
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mbedtls_platform_zeroize( items, sizeof( items ) );
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if( mbedtls_pk_debug( pk, items ) != 0 )
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{
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debug_send_line( ssl, level, file, line,
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"invalid PK context" );
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return;
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}
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for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ )
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{
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if( items[i].type == MBEDTLS_PK_DEBUG_NONE )
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return;
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mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
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name[sizeof( name ) - 1] = '\0';
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if( items[i].type == MBEDTLS_PK_DEBUG_MPI )
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mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value );
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else
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#if defined(MBEDTLS_ECP_C)
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if( items[i].type == MBEDTLS_PK_DEBUG_ECP )
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mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value );
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else
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#endif
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debug_send_line( ssl, level, file, line,
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"should not happen" );
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}
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}
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static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line, const char *text )
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{
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char str[DEBUG_BUF_SIZE];
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const char *start, *cur;
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start = text;
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for( cur = text; *cur != '\0'; cur++ )
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{
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if( *cur == '\n' )
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{
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size_t len = cur - start;
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if( len > DEBUG_BUF_SIZE - 1 )
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len = DEBUG_BUF_SIZE - 1;
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memcpy( str, start, len );
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str[len] = '\0';
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debug_send_line( ssl, level, file, line, str );
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start = cur + 1;
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}
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}
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}
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void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const char *text, const mbedtls_x509_crt *crt )
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{
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char str[DEBUG_BUF_SIZE];
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int i = 0;
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if( NULL == ssl ||
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NULL == ssl->conf ||
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NULL == ssl->conf->f_dbg ||
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NULL == crt ||
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level > mbedtls_debug_threshold )
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{
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return;
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}
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while( crt != NULL )
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{
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char buf[1024];
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mbedtls_snprintf( str, sizeof( str ), "%s #%d:", text, ++i );
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debug_send_line( ssl, level, file, line, str );
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mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
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debug_print_line_by_line( ssl, level, file, line, buf );
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debug_print_pk( ssl, level, file, line, "crt->", &crt->pk );
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crt = crt->next;
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}
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}
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#endif /* MBEDTLS_X509_CRT_PARSE_C */
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#if defined(MBEDTLS_ECDH_C)
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static void mbedtls_debug_printf_ecdh_internal( const mbedtls_ssl_context *ssl,
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int level, const char *file,
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int line,
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const mbedtls_ecdh_context *ecdh,
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mbedtls_debug_ecdh_attr attr )
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{
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#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
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const mbedtls_ecdh_context* ctx = ecdh;
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#else
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const mbedtls_ecdh_context_mbed* ctx = &ecdh->ctx.mbed_ecdh;
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#endif
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switch( attr )
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{
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case MBEDTLS_DEBUG_ECDH_Q:
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mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Q",
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&ctx->Q );
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break;
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case MBEDTLS_DEBUG_ECDH_QP:
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mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Qp",
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&ctx->Qp );
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break;
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case MBEDTLS_DEBUG_ECDH_Z:
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mbedtls_debug_print_mpi( ssl, level, file, line, "ECDH: z",
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&ctx->z );
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break;
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default:
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break;
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}
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}
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void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
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const char *file, int line,
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const mbedtls_ecdh_context *ecdh,
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mbedtls_debug_ecdh_attr attr )
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{
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#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
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mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, attr );
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#else
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switch( ecdh->var )
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{
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default:
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mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh,
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attr );
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}
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#endif
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}
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#endif /* MBEDTLS_ECDH_C */
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#endif /* MBEDTLS_DEBUG_C */
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