Copy DH key (if available) in addition to the bare parameters
[openssl.git] / ssl / ssl3.h
index 9675ec2d7d1c6a5b12177cd7af66eb124dcdc752..f616763830e3362da08ab44b0a90c247b5d2bd7e 100644 (file)
@@ -1,5 +1,5 @@
 /* ssl/ssl3.h */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
@@ -59,7 +59,9 @@
 #ifndef HEADER_SSL3_H 
 #define HEADER_SSL3_H 
 
-#include "buffer.h"
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+#include <openssl/ssl.h>
 
 #ifdef  __cplusplus
 extern "C" {
@@ -94,7 +96,7 @@ extern "C" {
 #define SSL3_CK_ADH_RC4_128_MD5                        0x03000018
 #define SSL3_CK_ADH_DES_40_CBC_SHA             0x03000019
 #define SSL3_CK_ADH_DES_64_CBC_SHA             0x0300001A
-#define SSL3_CK_ADH_DES_196_CBC_SHA            0x0300001B
+#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
@@ -106,7 +108,7 @@ extern "C" {
 #define SSL3_TXT_RSA_RC4_128_MD5               "RC4-MD5"
 #define SSL3_TXT_RSA_RC4_128_SHA               "RC4-SHA"
 #define SSL3_TXT_RSA_RC2_40_MD5                        "EXP-RC2-CBC-MD5"
-#define SSL3_TXT_RSA_IDEA_128_SHA              "IDEA-CBC-MD5"
+#define SSL3_TXT_RSA_IDEA_128_SHA              "IDEA-CBC-SHA"
 #define SSL3_TXT_RSA_DES_40_CBC_SHA            "EXP-DES-CBC-SHA"
 #define SSL3_TXT_RSA_DES_64_CBC_SHA            "DES-CBC-SHA"
 #define SSL3_TXT_RSA_DES_192_CBC3_SHA          "DES-CBC3-SHA"
@@ -121,7 +123,7 @@ extern "C" {
 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA                "EXP-EDH-DSS-DES-CBC-SHA"
 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA                "EDH-DSS-DES-CBC-SHA"
 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA      "EDH-DSS-DES-CBC3-SHA"
-#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA                "EXP-EDH-RSA-DES-CBC"
+#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA                "EXP-EDH-RSA-DES-CBC-SHA"
 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA                "EDH-RSA-DES-CBC-SHA"
 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA      "EDH-RSA-DES-CBC3-SHA"
 
@@ -129,7 +131,7 @@ extern "C" {
 #define SSL3_TXT_ADH_RC4_128_MD5               "ADH-RC4-MD5"
 #define SSL3_TXT_ADH_DES_40_CBC_SHA            "EXP-ADH-DES-CBC-SHA"
 #define SSL3_TXT_ADH_DES_64_CBC_SHA            "ADH-DES-CBC-SHA"
-#define SSL3_TXT_ADH_DES_196_CBC_SHA           "ADH-DES-CBC3-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"
@@ -156,24 +158,8 @@ extern "C" {
 #define SSL3_RT_MAX_PACKET_SIZE                (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
 #define SSL3_RT_MAX_DATA_SIZE                  (1024*1024)
 
-/* the states that a SSL3_RECORD can be in
- * For SSL_read it goes
- * rbuf->ENCODED       -> read 
- * ENCODED             -> we need to decode everything - call decode_record
- */
-#define SSL3_RS_BLANK                  1
-#define SSL3_RS_DATA
-
-#define SSL3_RS_ENCODED                        2
-#define SSL3_RS_READ_MORE              3
-#define SSL3_RS_WRITE_MORE
-#define SSL3_RS_PLAIN                  3
-#define SSL3_RS_PART_READ              4
-#define SSL3_RS_PART_WRITE             5
-
-#define SSL3_MD_CLIENT_FINISHED_CONST  0x43,0x4C,0x4E,0x54
-#define SSL3_MD_SERVER_FINISHED_CONST  0x53,0x52,0x56,0x52
+#define SSL3_MD_CLIENT_FINISHED_CONST  "\x43\x4C\x4E\x54"
+#define SSL3_MD_SERVER_FINISHED_CONST  "\x53\x52\x56\x52"
 
 #define SSL3_VERSION                   0x0300
 #define SSL3_VERSION_MAJOR             0x03
@@ -202,28 +188,22 @@ extern "C" {
 
 typedef struct ssl3_record_st
        {
-/*r */ int type;               /* type of record */
-/*  */ /*int state;*/          /* any data in it? */
-/*rw*/ unsigned int length;    /* How many bytes available */
-/*r */ unsigned int off;       /* read/write offset into 'buf' */
-/*rw*/ unsigned char *data;    /* pointer to the record data */
-/*rw*/ unsigned char *input;   /* where the decode bytes are */
-/*rw*/ unsigned char *comp;    /* only used with decompression */
+/*r */ int type;               /* type of record */
+/*rw*/ unsigned int length;    /* How many bytes available */
+/*r */ unsigned int off;       /* read/write offset into 'buf' */
+/*rw*/ unsigned char *data;    /* pointer to the record data */
+/*rw*/ unsigned char *input;   /* where the decode bytes are */
+/*r */ unsigned char *comp;    /* only used with decompression - malloc()ed */
        } SSL3_RECORD;
 
 typedef struct ssl3_buffer_st
        {
-/*r */ int total;              /* used in non-blocking writes */
-/*r */ int wanted;             /* how many more bytes we need */
-/*rw*/ int left;               /* how many bytes left */
-/*rw*/ int offset;             /* where to 'copy from' */
-/*rw*/ unsigned char *buf;     /* SSL3_RT_MAX_PACKET_SIZE bytes */
+       unsigned char *buf;     /* SSL3_RT_MAX_PACKET_SIZE bytes (more if
+                                * SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER is set) */
+       int offset;             /* where to 'copy from' */
+       int left;               /* how many bytes left */
        } SSL3_BUFFER;
 
-typedef struct ssl3_compression_st {
-       int nothing;
-       } SSL3_COMPRESSION;
-
 #define SSL3_CT_RSA_SIGN                       1
 #define SSL3_CT_DSS_SIGN                       2
 #define SSL3_CT_RSA_FIXED_DH                   3
@@ -236,8 +216,9 @@ typedef struct ssl3_compression_st {
 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS      0x0001
 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED       0x0002
 #define SSL3_FLAGS_POP_BUFFER                  0x0004
+#define TLS1_FLAGS_TLS_PADDING_BUG             0x0008
 
-typedef struct ssl3_ctx_st
+typedef struct ssl3_state_st
        {
        long flags;
        int delay_buf_pop_ret;
@@ -252,17 +233,23 @@ typedef struct ssl3_ctx_st
 
        SSL3_BUFFER rbuf;       /* read IO goes into here */
        SSL3_BUFFER wbuf;       /* write IO goes into here */
+
        SSL3_RECORD rrec;       /* each decoded record goes in here */
        SSL3_RECORD wrec;       /* goes out from here */
-                               /* Used by ssl3_read_n to point
-                                * to input data packet */
+
+       /* storage for Alert/Handshake protocol data received but not
+        * yet processed by ssl3_read_bytes: */
+       unsigned char alert_fragment[2];
+       unsigned int alert_fragment_len;
+       unsigned char handshake_fragment[4];
+       unsigned int handshake_fragment_len;
 
        /* partial write - check the numbers match */
        unsigned int wnum;      /* number of bytes sent so far */
        int wpend_tot;          /* number bytes written */
        int wpend_type;
        int wpend_ret;          /* number of bytes submitted */
-       char *wpend_buf;
+       const unsigned char *wpend_buf;
 
        /* used during startup, digest all incoming/outgoing packets */
        EVP_MD_CTX finish_dgst1;
@@ -274,22 +261,37 @@ typedef struct ssl3_ctx_st
 
        int warn_alert;
        int fatal_alert;
-       /* we alow one fatal and one warning alert to be outstanding,
+       /* we allow one fatal and one warning alert to be outstanding,
         * send close alert via the warning alert */
        int alert_dispatch;
-       char send_alert[2];
+       unsigned char send_alert[2];
+
+       /* This flag is set when we should renegotiate ASAP, basically when
+        * there is no more data in the read or write buffers */
+       int renegotiate;
+       int total_renegotiations;
+       int num_renegotiations;
+
+       int in_read_app_data;
 
        struct  {
-               unsigned char finish_md1[EVP_MAX_MD_SIZE];
-               unsigned char finish_md2[EVP_MAX_MD_SIZE];
+               /* actually only needs to be 16+20 */
+               unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
+
+               /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
+               unsigned char finish_md[EVP_MAX_MD_SIZE*2];
+               int finish_md_len;
+               unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
+               int peer_finish_md_len;
                
                unsigned long message_size;
                int message_type;
 
                /* used to hold the new cipher we are going to use */
                SSL_CIPHER *new_cipher;
+#ifndef NO_DH
                DH *dh;
-
+#endif
                /* used when SSL_ST_FLUSH_DATA is entered */
                int next_state;                 
 
@@ -299,18 +301,24 @@ typedef struct ssl3_ctx_st
                int cert_req;
                int ctype_num;
                char ctype[SSL3_CT_NUMBER];
-               STACK *ca_names;
+               STACK_OF(X509_NAME) *ca_names;
 
                int use_rsa_tmp;
 
                int key_block_length;
                unsigned char *key_block;
 
-               EVP_CIPHER *new_sym_enc;
-               EVP_MD *new_hash;
-               SSL_COMPRESSION *new_compression;
+               const EVP_CIPHER *new_sym_enc;
+               const EVP_MD *new_hash;
+#ifdef HEADER_COMP_H
+               const SSL_COMP *new_compression;
+#else
+               char *new_compression;
+#endif
+               int cert_request;
                } tmp;
-       } SSL3_CTX;
+
+       } SSL3_STATE;
 
 /* SSLv3 */
 /*client */
@@ -353,6 +361,7 @@ typedef struct ssl3_ctx_st
 /* extra state */
 #define SSL3_ST_SW_FLUSH               (0x100|SSL_ST_ACCEPT)
 /* read from client */
+/* Do not change the number values, they do matter */
 #define SSL3_ST_SR_CLNT_HELLO_A                (0x110|SSL_ST_ACCEPT)
 #define SSL3_ST_SR_CLNT_HELLO_B                (0x111|SSL_ST_ACCEPT)
 #define SSL3_ST_SR_CLNT_HELLO_C                (0x112|SSL_ST_ACCEPT)
@@ -387,7 +396,7 @@ typedef struct ssl3_ctx_st
 #define SSL3_ST_SW_FINISHED_A          (0x1E0|SSL_ST_ACCEPT)
 #define SSL3_ST_SW_FINISHED_B          (0x1E1|SSL_ST_ACCEPT)
 
-#define SSL3_MT_CLIENT_REQUEST                 0
+#define SSL3_MT_HELLO_REQUEST                  0
 #define SSL3_MT_CLIENT_HELLO                   1
 #define SSL3_MT_SERVER_HELLO                   2
 #define SSL3_MT_CERTIFICATE                    11