X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fs3_cbc.c;h=3a757455b0907348904bfe278d7660510f57ccaa;hp=9a228f7de27cd76295efad8d05e94eaf958fe5df;hb=71c94d3c6115ab853bbdc2e0e1e26da2c8aba76a;hpb=a230b26e0959dc5f072fbbdadcc9ed45e904c50c diff --git a/ssl/s3_cbc.c b/ssl/s3_cbc.c index 9a228f7de2..3a757455b0 100644 --- a/ssl/s3_cbc.c +++ b/ssl/s3_cbc.c @@ -134,7 +134,7 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, size_t data_plus_mac_size, size_t data_plus_mac_plus_padding_size, const unsigned char *mac_secret, - unsigned mac_secret_length, char is_sslv3) + size_t mac_secret_length, char is_sslv3) { union { double align; @@ -142,23 +142,24 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, } md_state; void (*md_final_raw) (void *ctx, unsigned char *md_out); void (*md_transform) (void *ctx, const unsigned char *block); - unsigned md_size, md_block_size = 64; - unsigned sslv3_pad_length = 40, header_length, variance_blocks, + size_t md_size, md_block_size = 64; + size_t sslv3_pad_length = 40, header_length, variance_blocks, len, max_mac_bytes, num_blocks, num_starting_blocks, k, mac_end_offset, c, index_a, index_b; - unsigned int bits; /* at most 18 bits */ + size_t bits; /* at most 18 bits */ unsigned char length_bytes[MAX_HASH_BIT_COUNT_BYTES]; /* hmac_pad is the masked HMAC key. */ unsigned char hmac_pad[MAX_HASH_BLOCK_SIZE]; unsigned char first_block[MAX_HASH_BLOCK_SIZE]; unsigned char mac_out[EVP_MAX_MD_SIZE]; - unsigned i, j, md_out_size_u; + size_t i, j; + unsigned md_out_size_u; EVP_MD_CTX *md_ctx = NULL; /* * mdLengthSize is the number of bytes in the length field that * terminates * the hash. */ - unsigned md_length_size = 8; + size_t md_length_size = 8; char length_is_big_endian = 1; int ret; @@ -356,7 +357,7 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, if (k > 0) { if (is_sslv3) { - unsigned overhang; + size_t overhang; /* * The SSLv3 header is larger than a single block. overhang is @@ -399,8 +400,8 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, for (i = num_starting_blocks; i <= num_starting_blocks + variance_blocks; i++) { unsigned char block[MAX_HASH_BLOCK_SIZE]; - unsigned char is_block_a = constant_time_eq_8(i, index_a); - unsigned char is_block_b = constant_time_eq_8(i, index_b); + unsigned char is_block_a = constant_time_eq_8_s(i, index_a); + unsigned char is_block_b = constant_time_eq_8_s(i, index_b); for (j = 0; j < md_block_size; j++) { unsigned char b = 0, is_past_c, is_past_cp1; if (k < header_length) @@ -409,8 +410,8 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, b = data[k - header_length]; k++; - is_past_c = is_block_a & constant_time_ge_8(j, c); - is_past_cp1 = is_block_a & constant_time_ge_8(j, c + 1); + is_past_c = is_block_a & constant_time_ge_8_s(j, c); + is_past_cp1 = is_block_a & constant_time_ge_8_s(j, c + 1); /* * If this is the block containing the end of the application * data, and we are at the offset for the 0x80 value, then @@ -471,6 +472,7 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, || EVP_DigestUpdate(md_ctx, mac_out, md_size) <= 0) goto err; } + /* TODO(size_t): Convert me */ ret = EVP_DigestFinal(md_ctx, md_out, &md_out_size_u); if (ret && md_out_size) *md_out_size = md_out_size_u;