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This commit is contained in:
Philippe Teuwen 2019-03-10 00:00:59 +01:00
commit 0373696662
483 changed files with 56514 additions and 52451 deletions
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140
common/mbedtls/entropy_poll.c
View file

@ -65,29 +65,27 @@
#include <windows.h>
#include <wincrypt.h>
int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len,
size_t *olen )
int mbedtls_platform_entropy_poll(void *data, unsigned char *output, size_t len,
size_t *olen)
{
HCRYPTPROV provider;
((void) data);
*olen = 0;
if( CryptAcquireContext( &provider, NULL, NULL,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
{
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if (CryptAcquireContext(&provider, NULL, NULL,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT) == FALSE) {
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
}
if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
{
CryptReleaseContext( provider, 0 );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if (CryptGenRandom(provider, (DWORD) len, output) == FALSE) {
CryptReleaseContext(provider, 0);
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
}
CryptReleaseContext( provider, 0 );
CryptReleaseContext(provider, 0);
*olen = len;
return( 0 );
return (0);
}
#else /* _WIN32 && !EFIX64 && !EFI32 */
@ -102,21 +100,21 @@ int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len
#if defined(SYS_getrandom)
#define HAVE_GETRANDOM
static int getrandom_wrapper( void *buf, size_t buflen, unsigned int flags )
static int getrandom_wrapper(void *buf, size_t buflen, unsigned int flags)
{
/* MemSan cannot understand that the syscall writes to the buffer */
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
memset( buf, 0, buflen );
memset(buf, 0, buflen);
#endif
#endif
return( syscall( SYS_getrandom, buf, buflen, flags ) );
return (syscall(SYS_getrandom, buf, buflen, flags));
}
#include <sys/utsname.h>
/* Check if version is at least 3.17.0 */
static int check_version_3_17_plus( void )
static int check_version_3_17_plus(void)
{
int minor;
struct utsname un;
@ -127,28 +125,28 @@ static int check_version_3_17_plus( void )
ver = un.release;
/* Check major version; assume a single digit */
if( ver[0] < '3' || ver[0] > '9' || ver [1] != '.' )
return( -1 );
if (ver[0] < '3' || ver[0] > '9' || ver [1] != '.')
return (-1);
if( ver[0] - '0' > 3 )
return( 0 );
if (ver[0] - '0' > 3)
return (0);
/* Ok, so now we know major == 3, check minor.
* Assume 1 or 2 digits. */
if( ver[2] < '0' || ver[2] > '9' )
return( -1 );
if (ver[2] < '0' || ver[2] > '9')
return (-1);
minor = ver[2] - '0';
if( ver[3] >= '0' && ver[3] <= '9' )
if (ver[3] >= '0' && ver[3] <= '9')
minor = 10 * minor + ver[3] - '0';
else if( ver [3] != '.' )
return( -1 );
else if (ver [3] != '.')
return (-1);
if( minor < 17 )
return( -1 );
if (minor < 17)
return (-1);
return( 0 );
return (0);
}
static int has_getrandom = -1;
#endif /* SYS_getrandom */
@ -156,121 +154,119 @@ static int has_getrandom = -1;
#include <stdio.h>
int mbedtls_platform_entropy_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
int mbedtls_platform_entropy_poll(void *data,
unsigned char *output, size_t len, size_t *olen)
{
FILE *file;
size_t read_len;
((void) data);
#if defined(HAVE_GETRANDOM)
if( has_getrandom == -1 )
has_getrandom = ( check_version_3_17_plus() == 0 );
if (has_getrandom == -1)
has_getrandom = (check_version_3_17_plus() == 0);
if( has_getrandom )
{
if (has_getrandom) {
int ret;
if( ( ret = getrandom_wrapper( output, len, 0 ) ) < 0 )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if ((ret = getrandom_wrapper(output, len, 0)) < 0)
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
*olen = ret;
return( 0 );
return (0);
}
#endif /* HAVE_GETRANDOM */
*olen = 0;
file = fopen( "/dev/urandom", "rb" );
if( file == NULL )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
file = fopen("/dev/urandom", "rb");
if (file == NULL)
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
read_len = fread( output, 1, len, file );
if( read_len != len )
{
fclose( file );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
read_len = fread(output, 1, len, file);
if (read_len != len) {
fclose(file);
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
}
fclose( file );
fclose(file);
*olen = len;
return( 0 );
return (0);
}
#endif /* _WIN32 && !EFIX64 && !EFI32 */
#endif /* !MBEDTLS_NO_PLATFORM_ENTROPY */
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
int mbedtls_null_entropy_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
int mbedtls_null_entropy_poll(void *data,
unsigned char *output, size_t len, size_t *olen)
{
((void) data);
((void) output);
*olen = 0;
if( len < sizeof(unsigned char) )
return( 0 );
if (len < sizeof(unsigned char))
return (0);
*olen = sizeof(unsigned char);
return( 0 );
return (0);
}
#endif
#if defined(MBEDTLS_TIMING_C)
int mbedtls_hardclock_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
int mbedtls_hardclock_poll(void *data,
unsigned char *output, size_t len, size_t *olen)
{
unsigned long timer = mbedtls_timing_hardclock();
((void) data);
*olen = 0;
if( len < sizeof(unsigned long) )
return( 0 );
if (len < sizeof(unsigned long))
return (0);
memcpy( output, &timer, sizeof(unsigned long) );
memcpy(output, &timer, sizeof(unsigned long));
*olen = sizeof(unsigned long);
return( 0 );
return (0);
}
#endif /* MBEDTLS_TIMING_C */
#if defined(MBEDTLS_HAVEGE_C)
int mbedtls_havege_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
int mbedtls_havege_poll(void *data,
unsigned char *output, size_t len, size_t *olen)
{
mbedtls_havege_state *hs = (mbedtls_havege_state *) data;
*olen = 0;
if( mbedtls_havege_random( hs, output, len ) != 0 )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if (mbedtls_havege_random(hs, output, len) != 0)
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
*olen = len;
return( 0 );
return (0);
}
#endif /* MBEDTLS_HAVEGE_C */
#if defined(MBEDTLS_ENTROPY_NV_SEED)
int mbedtls_nv_seed_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
int mbedtls_nv_seed_poll(void *data,
unsigned char *output, size_t len, size_t *olen)
{
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
size_t use_len = MBEDTLS_ENTROPY_BLOCK_SIZE;
((void) data);
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
memset(buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE);
if( mbedtls_nv_seed_read( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if (mbedtls_nv_seed_read(buf, MBEDTLS_ENTROPY_BLOCK_SIZE) < 0)
return (MBEDTLS_ERR_ENTROPY_SOURCE_FAILED);
if( len < use_len )
use_len = len;
if (len < use_len)
use_len = len;
memcpy( output, buf, use_len );
memcpy(output, buf, use_len);
*olen = use_len;
return( 0 );
return (0);
}
#endif /* MBEDTLS_ENTROPY_NV_SEED */