Hans Leidekker : bcrypt: Move the ASN1 buffer functions to gnutls.c.
Module: wine Branch: master Commit: b6cb27ea4c38f51eda556d458b83e6d83ebcc15e URL: https://source.winehq.org/git/wine.git/?a=commit;h=b6cb27ea4c38f51eda556d458... Author: Hans Leidekker <hans(a)codeweavers.com> Date: Fri Jul 20 14:51:15 2018 +0200 bcrypt: Move the ASN1 buffer functions to gnutls.c. Signed-off-by: Hans Leidekker <hans(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/bcrypt/bcrypt_internal.h | 12 ----- dlls/bcrypt/bcrypt_main.c | 97 --------------------------------------- dlls/bcrypt/gnutls.c | 103 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 103 insertions(+), 109 deletions(-) diff --git a/dlls/bcrypt/bcrypt_internal.h b/dlls/bcrypt/bcrypt_internal.h index 11c8b30..a40f9d1 100644 --- a/dlls/bcrypt/bcrypt_internal.h +++ b/dlls/bcrypt/bcrypt_internal.h @@ -105,18 +105,6 @@ VOID WINAPI A_SHAInit(SHA_CTX *ctx); VOID WINAPI A_SHAUpdate(SHA_CTX *ctx, const UCHAR *buffer, UINT size); VOID WINAPI A_SHAFinal(SHA_CTX *ctx, PULONG result); -struct buffer -{ - BYTE *buffer; - DWORD length; - DWORD pos; - BOOL error; -}; - -void buffer_init( struct buffer * ) DECLSPEC_HIDDEN; -void buffer_free( struct buffer * ) DECLSPEC_HIDDEN; -void buffer_append_asn1_r_s( struct buffer *, BYTE *, DWORD, BYTE *, DWORD ) DECLSPEC_HIDDEN; - #define MAGIC_ALG (('A' << 24) | ('L' << 16) | ('G' << 8) | '0') #define MAGIC_HASH (('H' << 24) | ('A' << 16) | ('S' << 8) | 'H') #define MAGIC_KEY (('K' << 24) | ('E' << 16) | ('Y' << 8) | '0') diff --git a/dlls/bcrypt/bcrypt_main.c b/dlls/bcrypt/bcrypt_main.c index 4edfbdd..2b9ae0b 100644 --- a/dlls/bcrypt/bcrypt_main.c +++ b/dlls/bcrypt/bcrypt_main.c @@ -718,103 +718,6 @@ NTSTATUS WINAPI BCryptHash( BCRYPT_ALG_HANDLE algorithm, UCHAR *secret, ULONG se return BCryptDestroyHash( handle ); } -#if defined(HAVE_GNUTLS_CIPHER_INIT) -void buffer_init( struct buffer *buffer ) -{ - buffer->buffer = NULL; - buffer->length = 0; - buffer->pos = 0; - buffer->error = FALSE; -} - -void buffer_free( struct buffer *buffer ) -{ - heap_free( buffer->buffer ); -} - -static void buffer_append( struct buffer *buffer, BYTE *data, DWORD len ) -{ - if (!len) return; - - if (buffer->pos + len > buffer->length) - { - DWORD new_length = max( max( buffer->pos + len, buffer->length * 2 ), 64 ); - BYTE *new_buffer; - - if (!(new_buffer = heap_realloc( buffer->buffer, new_length ))) - { - ERR( "out of memory\n" ); - buffer->error = TRUE; - return; - } - - buffer->buffer = new_buffer; - buffer->length = new_length; - } - - memcpy( &buffer->buffer[buffer->pos], data, len ); - buffer->pos += len; -} - -static void buffer_append_byte( struct buffer *buffer, BYTE value ) -{ - buffer_append( buffer, &value, sizeof(value) ); -} - -static void buffer_append_asn1_length( struct buffer *buffer, DWORD length ) -{ - DWORD num_bytes; - - if (length < 128) - { - buffer_append_byte( buffer, length ); - return; - } - - if (length <= 0xff) num_bytes = 1; - else if (length <= 0xffff) num_bytes = 2; - else if (length <= 0xffffff) num_bytes = 3; - else num_bytes = 4; - - buffer_append_byte( buffer, 0x80 | num_bytes ); - while (num_bytes--) buffer_append_byte( buffer, length >> (num_bytes * 8) ); -} - -static void buffer_append_asn1_integer( struct buffer *buffer, BYTE *data, DWORD len ) -{ - DWORD leading_zero = (*data & 0x80) != 0; - - buffer_append_byte( buffer, 0x02 ); /* tag */ - buffer_append_asn1_length( buffer, len + leading_zero ); - if (leading_zero) buffer_append_byte( buffer, 0 ); - buffer_append( buffer, data, len ); -} - -static void buffer_append_asn1_sequence( struct buffer *buffer, struct buffer *content ) -{ - if (content->error) - { - buffer->error = TRUE; - return; - } - - buffer_append_byte( buffer, 0x30 ); /* tag */ - buffer_append_asn1_length( buffer, content->pos ); - buffer_append( buffer, content->buffer, content->pos ); -} - -void buffer_append_asn1_r_s( struct buffer *buffer, BYTE *r, DWORD r_len, BYTE *s, DWORD s_len ) -{ - struct buffer value; - - buffer_init( &value ); - buffer_append_asn1_integer( &value, r, r_len ); - buffer_append_asn1_integer( &value, s, s_len ); - buffer_append_asn1_sequence( buffer, &value ); - buffer_free( &value ); -} -#endif - #if defined(HAVE_GNUTLS_CIPHER_INIT) || defined(HAVE_COMMONCRYPTO_COMMONCRYPTOR_H) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1080 BOOL key_is_symmetric( struct key *key ) { diff --git a/dlls/bcrypt/gnutls.c b/dlls/bcrypt/gnutls.c index f5bc0e5..69276be 100644 --- a/dlls/bcrypt/gnutls.c +++ b/dlls/bcrypt/gnutls.c @@ -215,6 +215,109 @@ void gnutls_uninitialize(void) libgnutls_handle = NULL; } +struct buffer +{ + BYTE *buffer; + DWORD length; + DWORD pos; + BOOL error; +}; + +static void buffer_init( struct buffer *buffer ) +{ + buffer->buffer = NULL; + buffer->length = 0; + buffer->pos = 0; + buffer->error = FALSE; +} + +static void buffer_free( struct buffer *buffer ) +{ + heap_free( buffer->buffer ); +} + +static void buffer_append( struct buffer *buffer, BYTE *data, DWORD len ) +{ + if (!len) return; + + if (buffer->pos + len > buffer->length) + { + DWORD new_length = max( max( buffer->pos + len, buffer->length * 2 ), 64 ); + BYTE *new_buffer; + + if (!(new_buffer = heap_realloc( buffer->buffer, new_length ))) + { + ERR( "out of memory\n" ); + buffer->error = TRUE; + return; + } + + buffer->buffer = new_buffer; + buffer->length = new_length; + } + + memcpy( &buffer->buffer[buffer->pos], data, len ); + buffer->pos += len; +} + +static void buffer_append_byte( struct buffer *buffer, BYTE value ) +{ + buffer_append( buffer, &value, sizeof(value) ); +} + +static void buffer_append_asn1_length( struct buffer *buffer, DWORD length ) +{ + DWORD num_bytes; + + if (length < 128) + { + buffer_append_byte( buffer, length ); + return; + } + + if (length <= 0xff) num_bytes = 1; + else if (length <= 0xffff) num_bytes = 2; + else if (length <= 0xffffff) num_bytes = 3; + else num_bytes = 4; + + buffer_append_byte( buffer, 0x80 | num_bytes ); + while (num_bytes--) buffer_append_byte( buffer, length >> (num_bytes * 8) ); +} + +static void buffer_append_asn1_integer( struct buffer *buffer, BYTE *data, DWORD len ) +{ + DWORD leading_zero = (*data & 0x80) != 0; + + buffer_append_byte( buffer, 0x02 ); /* tag */ + buffer_append_asn1_length( buffer, len + leading_zero ); + if (leading_zero) buffer_append_byte( buffer, 0 ); + buffer_append( buffer, data, len ); +} + +static void buffer_append_asn1_sequence( struct buffer *buffer, struct buffer *content ) +{ + if (content->error) + { + buffer->error = TRUE; + return; + } + + buffer_append_byte( buffer, 0x30 ); /* tag */ + buffer_append_asn1_length( buffer, content->pos ); + buffer_append( buffer, content->buffer, content->pos ); +} + +static void buffer_append_asn1_r_s( struct buffer *buffer, BYTE *r, DWORD r_len, BYTE *s, DWORD s_len ) +{ + struct buffer value; + + buffer_init( &value ); + buffer_append_asn1_integer( &value, r, r_len ); + buffer_append_asn1_integer( &value, s, s_len ); + buffer_append_asn1_sequence( buffer, &value ); + buffer_free( &value ); +} + NTSTATUS key_set_property( struct key *key, const WCHAR *prop, UCHAR *value, ULONG size, ULONG flags ) { if (!strcmpW( prop, BCRYPT_CHAINING_MODE ))
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Alexandre Julliard