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authormarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
committermarha <marha@users.sourceforge.net>2010-03-30 12:36:28 +0000
commitff48c0d9098080b51ea12710029135916d117806 (patch)
tree96e6af9caf170ba21a1027b24e306a07e27d7b75 /openssl/ssl/ssl3.h
parentbb731f5ac92655c4860a41fa818a7a63005f8369 (diff)
downloadvcxsrv-ff48c0d9098080b51ea12710029135916d117806.tar.gz
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svn merge -r514:HEAD ^/branches/released .
Diffstat (limited to 'openssl/ssl/ssl3.h')
-rw-r--r--openssl/ssl/ssl3.h133
1 files changed, 102 insertions, 31 deletions
diff --git a/openssl/ssl/ssl3.h b/openssl/ssl/ssl3.h
index a1a19cbfc..baaa89e71 100644
--- a/openssl/ssl/ssl3.h
+++ b/openssl/ssl/ssl3.h
@@ -123,12 +123,14 @@
#include <openssl/buffer.h>
#include <openssl/evp.h>
#include <openssl/ssl.h>
-#include <openssl/pq_compat.h>
#ifdef __cplusplus
extern "C" {
#endif
+/* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
+#define SSL3_CK_SCSV 0x030000FF
+
#define SSL3_CK_RSA_NULL_MD5 0x03000001
#define SSL3_CK_RSA_NULL_SHA 0x03000002
#define SSL3_CK_RSA_RC4_40_MD5 0x03000003
@@ -160,12 +162,14 @@ 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 <david.hopwood@zetnet.co.uk>
- 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 <david.hopwood@zetnet.co.uk>
+ of the ietf-tls list */
+ #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
+ #endif
#endif
/* VRS Additional Kerberos5 entries
@@ -217,9 +221,11 @@ 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"
@@ -245,23 +251,65 @@ 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
+/* 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
+#define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
#else
-#define SSL3_RT_MAX_COMPRESSED_LENGTH (1024+SSL3_RT_MAX_PLAIN_LENGTH)
+#define SSL3_RT_MAX_COMPRESSED_LENGTH \
+ (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
#endif
-#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)
+#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"
@@ -300,7 +348,7 @@ 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 */ PQ_64BIT 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
@@ -323,14 +371,14 @@ typedef struct ssl3_buffer_st
* enough to contain all of the cert types defined either for
* SSLv3 and TLSv1.
*/
-#define SSL3_CT_NUMBER 7
+#define SSL3_CT_NUMBER 9
-#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
-#define SSL3_FLAGS_ALLOW_UNSAFE_LEGACY_RENEGOTIATION 0x0010
+#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
+#define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
typedef struct ssl3_state_st
{
@@ -338,8 +386,10 @@ 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];
@@ -349,6 +399,9 @@ 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 */
@@ -370,9 +423,11 @@ 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;
@@ -392,6 +447,14 @@ 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];
@@ -406,7 +469,7 @@ typedef struct ssl3_state_st
int message_type;
/* used to hold the new cipher we are going to use */
- SSL_CIPHER *new_cipher;
+ const SSL_CIPHER *new_cipher;
#ifndef OPENSSL_NO_DH
DH *dh;
#endif
@@ -433,6 +496,8 @@ 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
@@ -441,6 +506,12 @@ typedef struct ssl3_state_st
int cert_request;
} tmp;
+ /* Connection binding to prevent renegotiation attacks */
+ unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
+ unsigned char previous_client_finished_len;
+ unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
+ unsigned char previous_server_finished_len;
+ int send_connection_binding; /* TODOEKR */
} SSL3_STATE;