X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl3.h;h=646a8e6cced3e0044181c8094e7730f2339f11c5;hp=162bc79e044b9a2570b3cbb0a8a2cde0e756a9ae;hb=2f63ad5b35920ce1cbd52f33341e49ccd2541a54;hpb=6c61726b2af78a1985178d31e551351231b54b10 diff --git a/ssl/ssl3.h b/ssl/ssl3.h index 162bc79e04..646a8e6cce 100644 --- a/ssl/ssl3.h +++ b/ssl/ssl3.h @@ -159,12 +159,14 @@ extern "C" { #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B -#define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C -#define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D -#if 0 /* Because it clashes with KRB5, is never used any more, and is safe - to remove according to David Hopwood - of the ietf-tls list */ -#define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E +#if 0 + #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C + #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D + #if 0 /* Because it clashes with KRB5, is never used any more, and is safe + to remove according to David Hopwood + of the ietf-tls list */ + #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E + #endif #endif /* VRS Additional Kerberos5 entries @@ -216,9 +218,11 @@ extern "C" { #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" -#define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" -#define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" -#define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" +#if 0 + #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA" + #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA" + #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA" +#endif #define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA" #define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA" @@ -244,19 +248,65 @@ extern "C" { #define SSL3_SESSION_ID_SIZE 32 #define SSL3_RT_HEADER_LENGTH 5 -/* Due to MS stuffing up, this can change.... */ -#if defined(OPENSSL_SYS_WIN16) || \ - (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32)) -#define SSL3_RT_MAX_EXTRA (14000) +#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 -#define SSL3_RT_MAX_EXTRA (16384) +# 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 maximum of 20 is used by SHA1, but we reserve for + * future extension for 512-bit hashes. + */ + +#define SSL3_RT_MAX_MD_SIZE 64 + +/* Maximum block size used in all ciphersuites. Currently 16 for AES. + */ + +#define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 + +#define SSL3_RT_MAX_EXTRA (16384) + +/* Maximum plaintext length: defined by SSL/TLS standards */ #define SSL3_RT_MAX_PLAIN_LENGTH 16384 -#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH) -#define SSL3_RT_MAX_ENCRYPTED_LENGTH (1024+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) +/* Maximum compression overhead: defined by SSL/TLS standards */ +#define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 + +/* The standards give a maximum encryption overhead of 1024 bytes. + * In practice the value is lower than this. The overhead is the maximum + * number of padding bytes (256) plus the mac size. + */ +#define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) + +/* OpenSSL currently only uses a padding length of at most one block so + * the send overhead is smaller. + */ + +#define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ + (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE) + +/* If compression isn't used don't include the compression overhead */ + +#ifdef OPENSSL_NO_COMP +#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH +#else +#define SSL3_RT_MAX_COMPRESSED_LENGTH \ + (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD) +#endif +#define SSL3_RT_MAX_ENCRYPTED_LENGTH \ + (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_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" @@ -295,7 +345,7 @@ typedef struct ssl3_record_st /*rw*/ unsigned char *input; /* where the decode bytes are */ /*r */ unsigned char *comp; /* only used with decompression - malloc()ed */ /*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */ -/*r */ BN_ULLONG seq_num; /* sequence number, needed by DTLS1 */ +/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */ } SSL3_RECORD; typedef struct ssl3_buffer_st @@ -332,8 +382,10 @@ typedef struct ssl3_state_st int delay_buf_pop_ret; unsigned char read_sequence[8]; + int read_mac_secret_size; unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; unsigned char write_sequence[8]; + int write_mac_secret_size; unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; unsigned char server_random[SSL3_RANDOM_SIZE]; @@ -343,6 +395,9 @@ typedef struct ssl3_state_st int need_empty_fragments; int empty_fragment_done; + /* The value of 'extra' when the buffers were initialized */ + int init_extra; + SSL3_BUFFER rbuf; /* read IO goes into here */ SSL3_BUFFER wbuf; /* write IO goes into here */ @@ -364,9 +419,11 @@ typedef struct ssl3_state_st const unsigned char *wpend_buf; /* used during startup, digest all incoming/outgoing packets */ - EVP_MD_CTX finish_dgst1; - EVP_MD_CTX finish_dgst2; - + BIO *handshake_buffer; + /* When set of handshake digests is determined, buffer is hashed + * and freed and MD_CTX-es for all required digests are stored in + * this array */ + EVP_MD_CTX **handshake_dgst; /* this is set whenerver we see a change_cipher_spec message * come in when we are not looking for one */ int change_cipher_spec; @@ -386,6 +443,14 @@ typedef struct ssl3_state_st int in_read_app_data; + /* Opaque PRF input as used for the current handshake. + * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined + * (otherwise, they are merely present to improve binary compatibility) */ + void *client_opaque_prf_input; + size_t client_opaque_prf_input_len; + void *server_opaque_prf_input; + size_t server_opaque_prf_input_len; + struct { /* actually only needs to be 16+20 */ unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2]; @@ -427,6 +492,8 @@ typedef struct ssl3_state_st const EVP_CIPHER *new_sym_enc; const EVP_MD *new_hash; + int new_mac_pkey_type; + int new_mac_secret_size; #ifndef OPENSSL_NO_COMP const SSL_COMP *new_compression; #else @@ -476,6 +543,10 @@ typedef struct ssl3_state_st #define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT) #define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT) #define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT) +#define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT) +#define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT) +#define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT) +#define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT) /* server */ /* extra state */ @@ -517,10 +588,15 @@ typedef struct ssl3_state_st #define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT) #define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT) #define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT) +#define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT) +#define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT) +#define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT) +#define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT) #define SSL3_MT_HELLO_REQUEST 0 #define SSL3_MT_CLIENT_HELLO 1 #define SSL3_MT_SERVER_HELLO 2 +#define SSL3_MT_NEWSESSION_TICKET 4 #define SSL3_MT_CERTIFICATE 11 #define SSL3_MT_SERVER_KEY_EXCHANGE 12 #define SSL3_MT_CERTIFICATE_REQUEST 13 @@ -528,6 +604,7 @@ typedef struct ssl3_state_st #define SSL3_MT_CERTIFICATE_VERIFY 15 #define SSL3_MT_CLIENT_KEY_EXCHANGE 16 #define SSL3_MT_FINISHED 20 +#define SSL3_MT_CERTIFICATE_STATUS 22 #define DTLS1_MT_HELLO_VERIFY_REQUEST 3