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
#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
#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"
#define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
#define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
-#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-SHA"
+#define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
#define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
-#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-SHA"
+#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
#define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
#define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
#define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
-#define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
+#define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
#define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
#define SSL3_SSL_SESSION_ID_LENGTH 32
#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"
#define SSL3_RT_ALERT 21
#define SSL3_RT_HANDSHAKE 22
#define SSL3_RT_APPLICATION_DATA 23
+#define TLS1_RT_HEARTBEAT 24
#define SSL3_AL_WARNING 1
#define SSL3_AL_FATAL 2
#define SSL3_AD_CERTIFICATE_UNKNOWN 46
#define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
+#define TLS1_HB_REQUEST 1
+#define TLS1_HB_RESPONSE 2
+
+#ifndef OPENSSL_NO_SSL_INTERN
+
typedef struct ssl3_record_st
{
/*r */ int type; /* type of record */
/*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 */
+/*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
+/*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
} SSL3_RECORD;
typedef struct ssl3_buffer_st
int left; /* how many bytes left */
} SSL3_BUFFER;
+#endif
+
#define SSL3_CT_RSA_SIGN 1
#define SSL3_CT_DSS_SIGN 2
#define SSL3_CT_RSA_FIXED_DH 3
* 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 TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
+#define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020
+
+/* SSL3_FLAGS_SGC_RESTART_DONE is set when we
+ * restart a handshake because of MS SGC and so prevents us
+ * from restarting the handshake in a loop. It's reset on a
+ * renegotiation, so effectively limits the client to one restart
+ * per negotiation. This limits the possibility of a DDoS
+ * attack where the client handshakes in a loop using SGC to
+ * restart. Servers which permit renegotiation can still be
+ * effected, but we can't prevent that.
+ */
+#define SSL3_FLAGS_SGC_RESTART_DONE 0x0040
+
+#ifndef OPENSSL_NO_SSL_INTERN
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];
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 */
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;
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];
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;
+ const SSL_CIPHER *new_cipher;
#ifndef OPENSSL_NO_DH
DH *dh;
#endif
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
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 */
+
+#ifndef OPENSSL_NO_NEXTPROTONEG
+ /* Set if we saw the Next Protocol Negotiation extension from our peer. */
+ int next_proto_neg_seen;
+#endif
+
+#ifndef OPENSSL_NO_TLSEXT
+#ifndef OPENSSL_NO_EC
+ /* This is set to true if we believe that this is a version of Safari
+ * running on OS X 10.6 or newer. We wish to know this because Safari
+ * on 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. */
+ char is_probably_safari;
+#endif /* !OPENSSL_NO_EC */
+#endif /* !OPENSSL_NO_TLSEXT */
} SSL3_STATE;
+#endif
+
/* SSLv3 */
/*client */
/* extra state */
#define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
+#ifndef OPENSSL_NO_SCTP
+#define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT)
+#define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT)
+#endif
/* write to server */
#define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
#define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
/* read from server */
#define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
#define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
+#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
#define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
#define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
#define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
+#define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
+#endif
#define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
#define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
/* read from server */
#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 */
#define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
+#ifndef OPENSSL_NO_SCTP
+#define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT)
+#define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT)
+#endif
/* 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)
/* write to client */
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
+#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
+#define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
+#endif
#define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
#define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
/* write to client */
#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
#define SSL3_MT_CERTIFICATE_VERIFY 15
#define SSL3_MT_CLIENT_KEY_EXCHANGE 16
#define SSL3_MT_FINISHED 20
+#define SSL3_MT_CERTIFICATE_STATUS 22
+#ifndef OPENSSL_NO_NEXTPROTONEG
+#define SSL3_MT_NEXT_PROTO 67
+#endif
+#define DTLS1_MT_HELLO_VERIFY_REQUEST 3
+
#define SSL3_MT_CCS 1