diff options
| author | Andy Polyakov <appro@openssl.org> | 2006-10-20 11:26:00 +0000 |
|---|---|---|
| committer | Andy Polyakov <appro@openssl.org> | 2006-10-20 11:26:00 +0000 |
| commit | a4d64c7f49d76d659b6ad482c4f788fc7274f651 (patch) | |
| tree | 5ab6d7077b0882a5e8c8a59c2e7f6c08b67a0e4c /ssl/ssl3.h | |
| parent | 1e7b6c029c829f010997c2bca59b40ccebb192a7 (diff) | |
Align data payload for better performance.
Diffstat (limited to 'ssl/ssl3.h')
| -rw-r--r-- | ssl/ssl3.h | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/ssl/ssl3.h b/ssl/ssl3.h index 2129759623..5ddadb2cd1 100644 --- a/ssl/ssl3.h +++ b/ssl/ssl3.h @@ -248,12 +248,27 @@ extern "C" { #define SSL3_SESSION_ID_SIZE 32 #define SSL3_RT_HEADER_LENGTH 5 +#ifndef SSL3_ALIGN_PAYLOAD + /* Some will argue that this increases memory footprint, but it's + * not actually true. Point is that malloc has to return at least + * 64-bit aligned pointers, meaning that allocating 5 bytes wastes + * 3 bytes in either case. Suggested pre-gaping simply moves these + * wasted bytes from the end of allocated region to its front, + * but makes data payload aligned, which improves performance:-) */ +# define SSL3_ALIGN_PAYLOAD 8 +#else +# if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0 +# error "insane SSL3_ALIGN_PAYLOAD" +# undef SSL3_ALIGN_PAYLOAD +# endif +#endif + /* This is the maximum MAC (digest) size used by the SSL library. - * Currently this is 20 when SHA1 is used. This must be updated if larger - * digests are used in future. + * Currently maximum of 20 is used by SHA1, but we reserve for + * future extension for 512-bit hashes. */ -#define SSL3_RT_MAX_MD_SIZE 20 +#define SSL3_RT_MAX_MD_SIZE 64 /* Maximum block size used in all ciphersuites. Currently 16 for AES. */ @@ -292,7 +307,6 @@ extern "C" { (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH) #define SSL3_RT_MAX_PACKET_SIZE \ (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH) -#define SSL3_RT_MAX_DATA_SIZE (1024*1024) #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" |