Reformat s3_{enc|lib}.c.
Change-Id: I4f2a241ef996952195b9bcdd9ee305e28b2aff5d
diff --git a/ssl/s3_enc.c b/ssl/s3_enc.c
index d478925..9209278 100644
--- a/ssl/s3_enc.c
+++ b/ssl/s3_enc.c
@@ -144,759 +144,738 @@
#include "ssl_locl.h"
-static const uint8_t ssl3_pad_1[48]={
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
- 0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36 };
-static const uint8_t ssl3_pad_2[48]={
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
- 0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c };
-static int ssl3_handshake_mac(SSL *s, int md_nid,
- const char *sender, int len, unsigned char *p);
-static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
- {
- EVP_MD_CTX m5;
- EVP_MD_CTX s1;
- unsigned char buf[16],smd[SHA_DIGEST_LENGTH];
- unsigned char c='A';
- unsigned int i,j,k;
+static const uint8_t ssl3_pad_1[48] = {
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+ 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+};
- k=0;
- EVP_MD_CTX_init(&m5);
- EVP_MD_CTX_init(&s1);
- for (i=0; (int)i<num; i+=MD5_DIGEST_LENGTH)
- {
- k++;
- if (k > sizeof buf)
- {
- /* bug: 'buf' is too small for this ciphersuite */
- OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_R_INTERNAL_ERROR);
- return 0;
- }
-
- for (j=0; j<k; j++)
- buf[j]=c;
- c++;
- if (!EVP_DigestInit_ex(&s1,EVP_sha1(), NULL))
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
- return 0;
- }
- EVP_DigestUpdate(&s1,buf,k);
- EVP_DigestUpdate(&s1,s->session->master_key,
- s->session->master_key_length);
- EVP_DigestUpdate(&s1,s->s3->server_random,SSL3_RANDOM_SIZE);
- EVP_DigestUpdate(&s1,s->s3->client_random,SSL3_RANDOM_SIZE);
- EVP_DigestFinal_ex(&s1,smd,NULL);
+static const uint8_t ssl3_pad_2[48] = {
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+ 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c,
+};
- if (!EVP_DigestInit_ex(&m5,EVP_md5(), NULL))
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
- return 0;
- }
- EVP_DigestUpdate(&m5,s->session->master_key,
- s->session->master_key_length);
- EVP_DigestUpdate(&m5,smd,SHA_DIGEST_LENGTH);
- if ((int)(i+MD5_DIGEST_LENGTH) > num)
- {
- EVP_DigestFinal_ex(&m5,smd,NULL);
- memcpy(km,smd,(num-i));
- }
- else
- EVP_DigestFinal_ex(&m5,km,NULL);
+static int ssl3_handshake_mac(SSL *s, int md_nid, const char *sender, int len,
+ uint8_t *p);
- km+=MD5_DIGEST_LENGTH;
- }
- OPENSSL_cleanse(smd,SHA_DIGEST_LENGTH);
- EVP_MD_CTX_cleanup(&m5);
- EVP_MD_CTX_cleanup(&s1);
- return 1;
- }
+static int ssl3_generate_key_block(SSL *s, uint8_t *km, int num) {
+ EVP_MD_CTX md5;
+ EVP_MD_CTX sha1;
+ uint8_t buf[16], smd[SHA_DIGEST_LENGTH];
+ uint8_t c = 'A';
+ unsigned int i, j, k;
-int ssl3_change_cipher_state(SSL *s, int which)
- {
- unsigned char *p,*mac_secret;
- unsigned char exp_key[EVP_MAX_KEY_LENGTH];
- unsigned char exp_iv[EVP_MAX_IV_LENGTH];
- unsigned char *ms,*key,*iv;
- EVP_CIPHER_CTX *dd;
- const EVP_CIPHER *c;
- const EVP_MD *m;
- int n,i,j,k,cl;
- int reuse_dd = 0;
+ k = 0;
+ EVP_MD_CTX_init(&md5);
+ EVP_MD_CTX_init(&sha1);
+ for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) {
+ k++;
+ if (k > sizeof(buf)) {
+ /* bug: 'buf' is too small for this ciphersuite */
+ OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
- c=s->s3->tmp.new_sym_enc;
- m=s->s3->tmp.new_hash;
- /* m == NULL will lead to a crash later */
- assert(m);
+ for (j = 0; j < k; j++) {
+ buf[j] = c;
+ }
+ c++;
+ if (!EVP_DigestInit_ex(&sha1, EVP_sha1(), NULL)) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
+ return 0;
+ }
+ EVP_DigestUpdate(&sha1, buf, k);
+ EVP_DigestUpdate(&sha1, s->session->master_key,
+ s->session->master_key_length);
+ EVP_DigestUpdate(&sha1, s->s3->server_random, SSL3_RANDOM_SIZE);
+ EVP_DigestUpdate(&sha1, s->s3->client_random, SSL3_RANDOM_SIZE);
+ EVP_DigestFinal_ex(&sha1, smd, NULL);
- if (which & SSL3_CC_READ)
- {
- if (s->enc_read_ctx != NULL)
- reuse_dd = 1;
- else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
- goto err;
- else
- /* make sure it's intialized in case we exit later with an error */
- EVP_CIPHER_CTX_init(s->enc_read_ctx);
- dd= s->enc_read_ctx;
+ if (!EVP_DigestInit_ex(&md5, EVP_md5(), NULL)) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
+ return 0;
+ }
+ EVP_DigestUpdate(&md5, s->session->master_key,
+ s->session->master_key_length);
+ EVP_DigestUpdate(&md5, smd, SHA_DIGEST_LENGTH);
+ if ((int)(i + MD5_DIGEST_LENGTH) > num) {
+ EVP_DigestFinal_ex(&md5, smd, NULL);
+ memcpy(km, smd, (num - i));
+ } else {
+ EVP_DigestFinal_ex(&md5, km, NULL);
+ }
- ssl_replace_hash(&s->read_hash,m);
- memset(&(s->s3->read_sequence[0]),0,8);
- mac_secret= &(s->s3->read_mac_secret[0]);
- }
- else
- {
- if (s->enc_write_ctx != NULL)
- reuse_dd = 1;
- else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
- goto err;
- else
- /* make sure it's intialized in case we exit later with an error */
- EVP_CIPHER_CTX_init(s->enc_write_ctx);
- dd= s->enc_write_ctx;
- ssl_replace_hash(&s->write_hash,m);
- memset(&(s->s3->write_sequence[0]),0,8);
- mac_secret= &(s->s3->write_mac_secret[0]);
- }
+ km += MD5_DIGEST_LENGTH;
+ }
- if (reuse_dd)
- EVP_CIPHER_CTX_cleanup(dd);
+ OPENSSL_cleanse(smd, SHA_DIGEST_LENGTH);
+ EVP_MD_CTX_cleanup(&md5);
+ EVP_MD_CTX_cleanup(&sha1);
- p=s->s3->tmp.key_block;
- i=EVP_MD_size(m);
- cl=EVP_CIPHER_key_length(c);
- j = cl;
- /* Was j=(is_exp)?5:EVP_CIPHER_key_length(c); */
- k=EVP_CIPHER_iv_length(c);
- if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
- (which == SSL3_CHANGE_CIPHER_SERVER_READ))
- {
- ms= &(p[ 0]); n=i+i;
- key= &(p[ n]); n+=j+j;
- iv= &(p[ n]); n+=k+k;
- }
- else
- {
- n=i;
- ms= &(p[ n]); n+=i+j;
- key= &(p[ n]); n+=j+k;
- iv= &(p[ n]); n+=k;
- }
+ return 1;
+}
- if (n > s->s3->tmp.key_block_length)
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_change_cipher_state, ERR_R_INTERNAL_ERROR);
- goto err2;
- }
+int ssl3_change_cipher_state(SSL *s, int which) {
+ uint8_t *p, *mac_secret;
+ uint8_t exp_key[EVP_MAX_KEY_LENGTH];
+ uint8_t exp_iv[EVP_MAX_IV_LENGTH];
+ uint8_t *ms, *key, *iv;
+ EVP_CIPHER_CTX *dd;
+ const EVP_CIPHER *c;
+ const EVP_MD *m;
+ int n, i, j, k, cl;
+ int reuse_dd = 0;
- memcpy(mac_secret,ms,i);
+ c = s->s3->tmp.new_sym_enc;
+ m = s->s3->tmp.new_hash;
+ /* m == NULL will lead to a crash later */
+ assert(m);
- if (!EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE)))
- goto err2;
+ if (which & SSL3_CC_READ) {
+ if (s->enc_read_ctx != NULL) {
+ reuse_dd = 1;
+ } else {
+ s->enc_read_ctx = OPENSSL_malloc(sizeof(EVP_CIPHER_CTX));
+ if (s->enc_read_ctx == NULL) {
+ goto err;
+ }
+ EVP_CIPHER_CTX_init(s->enc_read_ctx);
+ }
+ dd = s->enc_read_ctx;
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- if (s->msg_callback)
- {
-
- int wh = which & SSL3_CC_WRITE ?
- TLS1_RT_CRYPTO_WRITE : TLS1_RT_CRYPTO_READ;
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC,
- mac_secret, EVP_MD_size(m),
- s, s->msg_callback_arg);
- if (c->key_len)
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY,
- key, c->key_len,
- s, s->msg_callback_arg);
- if (k)
- {
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_IV,
- iv, k, s, s->msg_callback_arg);
- }
- }
-#endif
+ ssl_replace_hash(&s->read_hash, m);
+ memset(&s->s3->read_sequence[0], 0, 8);
+ mac_secret = &s->s3->read_mac_secret[0];
+ } else {
+ if (s->enc_write_ctx != NULL) {
+ reuse_dd = 1;
+ } else {
+ s->enc_write_ctx = OPENSSL_malloc(sizeof(EVP_CIPHER_CTX));
+ if (s->enc_write_ctx == NULL) {
+ goto err;
+ }
+ EVP_CIPHER_CTX_init(s->enc_write_ctx);
+ }
+ dd = s->enc_write_ctx;
+ ssl_replace_hash(&s->write_hash, m);
+ memset(&s->s3->write_sequence[0], 0, 8);
+ mac_secret = &s->s3->write_mac_secret[0];
+ }
- OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key));
- OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv));
- return(1);
+ if (reuse_dd) {
+ EVP_CIPHER_CTX_cleanup(dd);
+ }
+
+ p = s->s3->tmp.key_block;
+ i = EVP_MD_size(m);
+ cl = EVP_CIPHER_key_length(c);
+ j = cl;
+ k = EVP_CIPHER_iv_length(c);
+ if (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE ||
+ which == SSL3_CHANGE_CIPHER_SERVER_READ) {
+ ms = &(p[0]);
+ n = i + i;
+ key = &(p[n]);
+ n += j + j;
+ iv = &(p[n]);
+ n += k + k;
+ } else {
+ n = i;
+ ms = &(p[n]);
+ n += i + j;
+ key = &(p[n]);
+ n += j + k;
+ iv = &(p[n]);
+ n += k;
+ }
+
+ if (n > s->s3->tmp.key_block_length) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_change_cipher_state, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
+
+ memcpy(mac_secret, ms, i);
+
+ if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
+ goto err2;
+ }
+
+ OPENSSL_cleanse(&exp_key[0], sizeof(exp_key));
+ OPENSSL_cleanse(&exp_iv[0], sizeof(exp_iv));
+ return 1;
+
err:
- OPENSSL_PUT_ERROR(SSL, ssl3_change_cipher_state, ERR_R_MALLOC_FAILURE);
+ OPENSSL_PUT_ERROR(SSL, ssl3_change_cipher_state, ERR_R_MALLOC_FAILURE);
err2:
- return(0);
- }
+ return 0;
+}
-int ssl3_setup_key_block(SSL *s)
- {
- unsigned char *p;
- const EVP_CIPHER *c;
- const EVP_MD *hash;
- size_t num;
- int ret = 0;
+int ssl3_setup_key_block(SSL *s) {
+ uint8_t *p;
+ const EVP_CIPHER *c;
+ const EVP_MD *hash;
+ size_t num;
+ int ret = 0;
- if (s->s3->tmp.key_block_length != 0)
- return(1);
+ if (s->s3->tmp.key_block_length != 0) {
+ return 1;
+ }
- if (!ssl_cipher_get_evp(s->session,&c,&hash,NULL,NULL))
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_setup_key_block, SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
- return(0);
- }
+ if (!ssl_cipher_get_evp(s->session, &c, &hash, NULL, NULL)) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_setup_key_block,
+ SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
+ return 0;
+ }
- s->s3->tmp.new_sym_enc=c;
- s->s3->tmp.new_hash=hash;
+ s->s3->tmp.new_sym_enc = c;
+ s->s3->tmp.new_hash = hash;
- num=EVP_MD_size(hash);
+ num = EVP_MD_size(hash);
- num=EVP_CIPHER_key_length(c)+num+EVP_CIPHER_iv_length(c);
- num*=2;
+ num = EVP_CIPHER_key_length(c) + num + EVP_CIPHER_iv_length(c);
+ num *= 2;
- ssl3_cleanup_key_block(s);
+ ssl3_cleanup_key_block(s);
- if ((p=OPENSSL_malloc(num)) == NULL)
- goto err;
+ p = OPENSSL_malloc(num);
+ if (p == NULL) {
+ goto err;
+ }
- s->s3->tmp.key_block_length=num;
- s->s3->tmp.key_block=p;
+ s->s3->tmp.key_block_length = num;
+ s->s3->tmp.key_block = p;
- ret = ssl3_generate_key_block(s,p,num);
+ ret = ssl3_generate_key_block(s, p, num);
- /* enable vulnerability countermeasure for CBC ciphers with
- * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt) */
- if ((s->mode & SSL_MODE_CBC_RECORD_SPLITTING) != 0)
- {
- s->s3->need_record_splitting = 1;
+ /* enable vulnerability countermeasure for CBC ciphers with known-IV problem
+ * (http://www.openssl.org/~bodo/tls-cbc.txt) */
+ if ((s->mode & SSL_MODE_CBC_RECORD_SPLITTING) != 0) {
+ s->s3->need_record_splitting = 1;
- if (s->session->cipher != NULL)
- {
- if (s->session->cipher->algorithm_enc == SSL_RC4)
- s->s3->need_record_splitting = 0;
- }
- }
+ if (s->session->cipher != NULL &&
+ s->session->cipher->algorithm_enc == SSL_RC4) {
+ s->s3->need_record_splitting = 0;
+ }
+ }
- return ret;
+ return ret;
err:
- OPENSSL_PUT_ERROR(SSL, ssl3_setup_key_block, ERR_R_MALLOC_FAILURE);
- return(0);
- }
+ OPENSSL_PUT_ERROR(SSL, ssl3_setup_key_block, ERR_R_MALLOC_FAILURE);
+ return 0;
+}
-void ssl3_cleanup_key_block(SSL *s)
- {
- if (s->s3->tmp.key_block != NULL)
- {
- OPENSSL_cleanse(s->s3->tmp.key_block,
- s->s3->tmp.key_block_length);
- OPENSSL_free(s->s3->tmp.key_block);
- s->s3->tmp.key_block=NULL;
- }
- s->s3->tmp.key_block_length=0;
- }
+void ssl3_cleanup_key_block(SSL *s) {
+ if (s->s3->tmp.key_block != NULL) {
+ OPENSSL_cleanse(s->s3->tmp.key_block, s->s3->tmp.key_block_length);
+ OPENSSL_free(s->s3->tmp.key_block);
+ s->s3->tmp.key_block = NULL;
+ }
+ s->s3->tmp.key_block_length = 0;
+}
-/* ssl3_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively.
+/* ssl3_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|,
+ * respectively.
*
* Returns:
* 0: (in non-constant time) if the record is publically invalid (i.e. too
* short etc).
* 1: if the record's padding is valid / the encryption was successful.
* -1: if the record's padding is invalid or, if sending, an internal error
- * occured.
- */
-int ssl3_enc(SSL *s, int send)
- {
- SSL3_RECORD *rec;
- EVP_CIPHER_CTX *ds;
- unsigned long l;
- int bs,i,mac_size=0;
- const EVP_CIPHER *enc;
+ * occured. */
+int ssl3_enc(SSL *s, int send) {
+ SSL3_RECORD *rec;
+ EVP_CIPHER_CTX *ds;
+ unsigned long l;
+ int bs, i, mac_size = 0;
+ const EVP_CIPHER *enc = NULL;
- if (send)
- {
- ds=s->enc_write_ctx;
- rec= &(s->s3->wrec);
- if (s->enc_write_ctx == NULL)
- enc=NULL;
- else
- enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
- }
- else
- {
- ds=s->enc_read_ctx;
- rec= &(s->s3->rrec);
- if (s->enc_read_ctx == NULL)
- enc=NULL;
- else
- enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
- }
+ if (send) {
+ ds = s->enc_write_ctx;
+ rec = &(s->s3->wrec);
+ if (s->enc_write_ctx != NULL) {
+ enc = EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
+ }
+ } else {
+ ds = s->enc_read_ctx;
+ rec = &(s->s3->rrec);
+ if (s->enc_read_ctx != NULL) {
+ enc = EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
+ }
+ }
- if ((s->session == NULL) || (ds == NULL) ||
- (enc == NULL))
- {
- memmove(rec->data,rec->input,rec->length);
- rec->input=rec->data;
- }
- else
- {
- l=rec->length;
- bs=EVP_CIPHER_block_size(ds->cipher);
+ if (s->session == NULL || ds == NULL || enc == NULL) {
+ memmove(rec->data, rec->input, rec->length);
+ rec->input = rec->data;
+ } else {
+ l = rec->length;
+ bs = EVP_CIPHER_block_size(ds->cipher);
- /* COMPRESS */
+ if (bs != 1 && send) {
+ i = bs - ((int)l % bs);
- if ((bs != 1) && send)
- {
- i=bs-((int)l%bs);
+ /* we need to add 'i-1' padding bytes */
+ l += i;
+ /* the last of these zero bytes will be overwritten with the padding
+ * length. */
+ memset(&rec->input[rec->length], 0, i);
+ rec->length += i;
+ rec->input[l - 1] = (i - 1);
+ }
- /* we need to add 'i-1' padding bytes */
- l+=i;
- /* the last of these zero bytes will be overwritten
- * with the padding length. */
- memset(&rec->input[rec->length], 0, i);
- rec->length+=i;
- rec->input[l-1]=(i-1);
- }
-
- if (!send)
- {
- if (l == 0 || l%bs != 0)
- return 0;
- /* otherwise, rec->length >= bs */
- }
-
- if (!EVP_Cipher(ds, rec->data, rec->input, l))
- return -1;
+ if (!send) {
+ if (l == 0 || l % bs != 0) {
+ return 0;
+ }
+ /* otherwise, rec->length >= bs */
+ }
- if (EVP_MD_CTX_md(s->read_hash) != NULL)
- mac_size = EVP_MD_CTX_size(s->read_hash);
- if ((bs != 1) && !send)
- return ssl3_cbc_remove_padding(s, rec, bs, mac_size);
- }
- return(1);
- }
+ if (!EVP_Cipher(ds, rec->data, rec->input, l)) {
+ return -1;
+ }
-int ssl3_init_finished_mac(SSL *s)
- {
- if (s->s3->handshake_buffer) BIO_free(s->s3->handshake_buffer);
- if (s->s3->handshake_dgst) ssl3_free_digest_list(s);
- s->s3->handshake_buffer = BIO_new(BIO_s_mem());
- if (s->s3->handshake_buffer == NULL) {
- return 0;
- }
- (void)BIO_set_close(s->s3->handshake_buffer,BIO_CLOSE);
+ if (EVP_MD_CTX_md(s->read_hash) != NULL) {
+ mac_size = EVP_MD_CTX_size(s->read_hash);
+ }
+ if (bs != 1 && !send) {
+ return ssl3_cbc_remove_padding(s, rec, bs, mac_size);
+ }
+ }
- return 1;
- }
+ return 1;
+}
-void ssl3_free_digest_list(SSL *s)
- {
- int i;
- if (!s->s3->handshake_dgst) return;
- for (i=0;i<SSL_MAX_DIGEST;i++)
- {
- if (s->s3->handshake_dgst[i])
- EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]);
- }
- OPENSSL_free(s->s3->handshake_dgst);
- s->s3->handshake_dgst=NULL;
- }
+int ssl3_init_finished_mac(SSL *s) {
+ if (s->s3->handshake_buffer) {
+ BIO_free(s->s3->handshake_buffer);
+ }
+ if (s->s3->handshake_dgst) {
+ ssl3_free_digest_list(s);
+ }
+ s->s3->handshake_buffer = BIO_new(BIO_s_mem());
+ if (s->s3->handshake_buffer == NULL) {
+ return 0;
+ }
+ BIO_set_close(s->s3->handshake_buffer, BIO_CLOSE);
+ return 1;
+}
+void ssl3_free_digest_list(SSL *s) {
+ int i;
+ if (!s->s3->handshake_dgst) {
+ return;
+ }
+ for (i = 0; i < SSL_MAX_DIGEST; i++) {
+ if (s->s3->handshake_dgst[i]) {
+ EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]);
+ }
+ }
+ OPENSSL_free(s->s3->handshake_dgst);
+ s->s3->handshake_dgst = NULL;
+}
-void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len)
- {
- if (s->s3->handshake_buffer)
- {
- BIO_write (s->s3->handshake_buffer,(void *)buf,len);
- }
- else
- {
- int i;
- for (i=0;i< SSL_MAX_DIGEST;i++)
- {
- if (s->s3->handshake_dgst[i]!= NULL)
- EVP_DigestUpdate(s->s3->handshake_dgst[i],buf,len);
- }
- }
- }
+void ssl3_finish_mac(SSL *s, const uint8_t *buf, int len) {
+ int i;
-int ssl3_digest_cached_records(SSL *s, enum should_free_handshake_buffer_t should_free_handshake_buffer)
- {
- int i;
- long mask;
- const EVP_MD *md;
- const uint8_t *hdata;
- size_t hdatalen;
+ if (s->s3->handshake_buffer) {
+ BIO_write(s->s3->handshake_buffer, (void *)buf, len);
+ return;
+ }
- /* Allocate handshake_dgst array */
- ssl3_free_digest_list(s);
- s->s3->handshake_dgst = OPENSSL_malloc(SSL_MAX_DIGEST * sizeof(EVP_MD_CTX *));
- if (s->s3->handshake_dgst == NULL)
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_R_MALLOC_FAILURE);
- return 0;
- }
+ for (i = 0; i < SSL_MAX_DIGEST; i++) {
+ if (s->s3->handshake_dgst[i] != NULL) {
+ EVP_DigestUpdate(s->s3->handshake_dgst[i], buf, len);
+ }
+ }
+}
- memset(s->s3->handshake_dgst,0,SSL_MAX_DIGEST *sizeof(EVP_MD_CTX *));
- if (!BIO_mem_contents(s->s3->handshake_buffer, &hdata, &hdatalen))
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, SSL_R_BAD_HANDSHAKE_LENGTH);
- return 0;
- }
+int ssl3_digest_cached_records(
+ SSL *s, enum should_free_handshake_buffer_t should_free_handshake_buffer) {
+ int i;
+ long mask;
+ const EVP_MD *md;
+ const uint8_t *hdata;
+ size_t hdatalen;
- /* Loop through bitso of algorithm2 field and create MD_CTX-es */
- for (i=0;ssl_get_handshake_digest(i,&mask,&md); i++)
- {
- if ((mask & ssl_get_algorithm2(s)) && md)
- {
- s->s3->handshake_dgst[i] = EVP_MD_CTX_create();
- if (s->s3->handshake_dgst[i] == NULL)
- {
- OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_LIB_EVP);
- return 0;
- }
- if (!EVP_DigestInit_ex(s->s3->handshake_dgst[i], md, NULL))
- {
- EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]);
- s->s3->handshake_dgst[i] = NULL;
- OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_LIB_EVP);
- return 0;
- }
- EVP_DigestUpdate(s->s3->handshake_dgst[i],hdata,hdatalen);
- }
- else
- {
- s->s3->handshake_dgst[i]=NULL;
- }
- }
+ /* Allocate handshake_dgst array */
+ ssl3_free_digest_list(s);
+ s->s3->handshake_dgst = OPENSSL_malloc(SSL_MAX_DIGEST * sizeof(EVP_MD_CTX *));
+ if (s->s3->handshake_dgst == NULL) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
- if (should_free_handshake_buffer == free_handshake_buffer)
- {
- /* Free handshake_buffer BIO */
- BIO_free(s->s3->handshake_buffer);
- s->s3->handshake_buffer = NULL;
- }
+ memset(s->s3->handshake_dgst, 0, SSL_MAX_DIGEST * sizeof(EVP_MD_CTX *));
+ if (!BIO_mem_contents(s->s3->handshake_buffer, &hdata, &hdatalen)) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records,
+ SSL_R_BAD_HANDSHAKE_LENGTH);
+ return 0;
+ }
- return 1;
- }
+ /* Loop through bits of algorithm2 field and create MD_CTX-es */
+ for (i = 0; ssl_get_handshake_digest(i, &mask, &md); i++) {
+ if ((mask & ssl_get_algorithm2(s)) && md) {
+ s->s3->handshake_dgst[i] = EVP_MD_CTX_create();
+ if (s->s3->handshake_dgst[i] == NULL) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_LIB_EVP);
+ return 0;
+ }
+ if (!EVP_DigestInit_ex(s->s3->handshake_dgst[i], md, NULL)) {
+ EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]);
+ s->s3->handshake_dgst[i] = NULL;
+ OPENSSL_PUT_ERROR(SSL, ssl3_digest_cached_records, ERR_LIB_EVP);
+ return 0;
+ }
+ EVP_DigestUpdate(s->s3->handshake_dgst[i], hdata, hdatalen);
+ } else {
+ s->s3->handshake_dgst[i] = NULL;
+ }
+ }
-int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p)
- {
- return(ssl3_handshake_mac(s,md_nid,NULL,0,p));
- }
-int ssl3_final_finish_mac(SSL *s,
- const char *sender, int len, unsigned char *p)
- {
- int ret, sha1len;
- ret=ssl3_handshake_mac(s,NID_md5,sender,len,p);
- if(ret == 0)
- return 0;
+ if (should_free_handshake_buffer == free_handshake_buffer) {
+ /* Free handshake_buffer BIO */
+ BIO_free(s->s3->handshake_buffer);
+ s->s3->handshake_buffer = NULL;
+ }
- p+=ret;
+ return 1;
+}
- sha1len=ssl3_handshake_mac(s,NID_sha1,sender,len,p);
- if(sha1len == 0)
- return 0;
+int ssl3_cert_verify_mac(SSL *s, int md_nid, uint8_t *p) {
+ return ssl3_handshake_mac(s, md_nid, NULL, 0, p);
+}
- ret+=sha1len;
- return(ret);
- }
+int ssl3_final_finish_mac(SSL *s, const char *sender, int len, uint8_t *p) {
+ int ret, sha1len;
+ ret = ssl3_handshake_mac(s, NID_md5, sender, len, p);
+ if (ret == 0) {
+ return 0;
+ }
-static int ssl3_handshake_mac(SSL *s, int md_nid,
- const char *sender, int len, unsigned char *p)
- {
- unsigned int ret;
- int npad,n;
- unsigned int i;
- unsigned char md_buf[EVP_MAX_MD_SIZE];
- EVP_MD_CTX ctx,*d=NULL;
+ p += ret;
- if (s->s3->handshake_buffer)
- if (!ssl3_digest_cached_records(s, free_handshake_buffer))
- return 0;
+ sha1len = ssl3_handshake_mac(s, NID_sha1, sender, len, p);
+ if (sha1len == 0) {
+ return 0;
+ }
- /* Search for digest of specified type in the handshake_dgst
- * array*/
- for (i=0;i<SSL_MAX_DIGEST;i++)
- {
- if (s->s3->handshake_dgst[i]&&EVP_MD_CTX_type(s->s3->handshake_dgst[i])==md_nid)
- {
- d=s->s3->handshake_dgst[i];
- break;
- }
- }
- if (!d) {
- OPENSSL_PUT_ERROR(SSL, ssl3_handshake_mac, SSL_R_NO_REQUIRED_DIGEST);
- return 0;
- }
- EVP_MD_CTX_init(&ctx);
- if (!EVP_MD_CTX_copy_ex(&ctx,d))
- {
- EVP_MD_CTX_cleanup(&ctx);
- OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
- return 0;
- }
- n=EVP_MD_CTX_size(&ctx);
- if (n < 0)
- return 0;
+ ret += sha1len;
+ return ret;
+}
- npad=(48/n)*n;
- if (sender != NULL)
- EVP_DigestUpdate(&ctx,sender,len);
- EVP_DigestUpdate(&ctx,s->session->master_key,
- s->session->master_key_length);
- EVP_DigestUpdate(&ctx,ssl3_pad_1,npad);
- EVP_DigestFinal_ex(&ctx,md_buf,&i);
+static int ssl3_handshake_mac(SSL *s, int md_nid, const char *sender, int len,
+ uint8_t *p) {
+ unsigned int ret;
+ int npad, n;
+ unsigned int i;
+ uint8_t md_buf[EVP_MAX_MD_SIZE];
+ EVP_MD_CTX ctx, *d = NULL;
- if (!EVP_DigestInit_ex(&ctx,EVP_MD_CTX_md(&ctx), NULL))
- {
- EVP_MD_CTX_cleanup(&ctx);
- OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
- return 0;
- }
- EVP_DigestUpdate(&ctx,s->session->master_key,
- s->session->master_key_length);
- EVP_DigestUpdate(&ctx,ssl3_pad_2,npad);
- EVP_DigestUpdate(&ctx,md_buf,i);
- EVP_DigestFinal_ex(&ctx,p,&ret);
+ if (s->s3->handshake_buffer &&
+ !ssl3_digest_cached_records(s, free_handshake_buffer)) {
+ return 0;
+ }
- EVP_MD_CTX_cleanup(&ctx);
+ /* Search for digest of specified type in the handshake_dgst array. */
+ for (i = 0; i < SSL_MAX_DIGEST; i++) {
+ if (s->s3->handshake_dgst[i] &&
+ EVP_MD_CTX_type(s->s3->handshake_dgst[i]) == md_nid) {
+ d = s->s3->handshake_dgst[i];
+ break;
+ }
+ }
- return((int)ret);
- }
+ if (!d) {
+ OPENSSL_PUT_ERROR(SSL, ssl3_handshake_mac, SSL_R_NO_REQUIRED_DIGEST);
+ return 0;
+ }
-int n_ssl3_mac(SSL *ssl, unsigned char *md, int send)
- {
- SSL3_RECORD *rec;
- unsigned char *mac_sec,*seq;
- EVP_MD_CTX md_ctx;
- const EVP_MD_CTX *hash;
- unsigned char *p,rec_char;
- size_t md_size, orig_len;
- int npad;
- int t;
+ EVP_MD_CTX_init(&ctx);
+ if (!EVP_MD_CTX_copy_ex(&ctx, d)) {
+ EVP_MD_CTX_cleanup(&ctx);
+ OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
+ return 0;
+ }
- if (send)
- {
- rec= &(ssl->s3->wrec);
- mac_sec= &(ssl->s3->write_mac_secret[0]);
- seq= &(ssl->s3->write_sequence[0]);
- hash=ssl->write_hash;
- }
- else
- {
- rec= &(ssl->s3->rrec);
- mac_sec= &(ssl->s3->read_mac_secret[0]);
- seq= &(ssl->s3->read_sequence[0]);
- hash=ssl->read_hash;
- }
+ n = EVP_MD_CTX_size(&ctx);
+ if (n < 0) {
+ return 0;
+ }
- t=EVP_MD_CTX_size(hash);
- if (t < 0 || t > 20)
- return -1;
- md_size=t;
- npad=(48/md_size)*md_size;
+ npad = (48 / n) * n;
+ if (sender != NULL) {
+ EVP_DigestUpdate(&ctx, sender, len);
+ }
+ EVP_DigestUpdate(&ctx, s->session->master_key, s->session->master_key_length);
+ EVP_DigestUpdate(&ctx, ssl3_pad_1, npad);
+ EVP_DigestFinal_ex(&ctx, md_buf, &i);
- /* kludge: ssl3_cbc_remove_padding passes padding length in rec->type */
- orig_len = rec->length+md_size+((unsigned int)rec->type>>8);
- rec->type &= 0xff;
+ if (!EVP_DigestInit_ex(&ctx, EVP_MD_CTX_md(&ctx), NULL)) {
+ EVP_MD_CTX_cleanup(&ctx);
+ OPENSSL_PUT_ERROR(SSL, ssl3_generate_key_block, ERR_LIB_EVP);
+ return 0;
+ }
+ EVP_DigestUpdate(&ctx, s->session->master_key, s->session->master_key_length);
+ EVP_DigestUpdate(&ctx, ssl3_pad_2, npad);
+ EVP_DigestUpdate(&ctx, md_buf, i);
+ EVP_DigestFinal_ex(&ctx, p, &ret);
- if (!send &&
- EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
- ssl3_cbc_record_digest_supported(hash))
- {
- /* This is a CBC-encrypted record. We must avoid leaking any
- * timing-side channel information about how many blocks of
- * data we are hashing because that gives an attacker a
- * timing-oracle. */
+ EVP_MD_CTX_cleanup(&ctx);
- /* npad is, at most, 48 bytes and that's with MD5:
- * 16 + 48 + 8 (sequence bytes) + 1 + 2 = 75.
- *
- * With SHA-1 (the largest hash speced for SSLv3) the hash size
- * goes up 4, but npad goes down by 8, resulting in a smaller
- * total size. */
- unsigned char header[75];
- unsigned j = 0;
- memcpy(header+j, mac_sec, md_size);
- j += md_size;
- memcpy(header+j, ssl3_pad_1, npad);
- j += npad;
- memcpy(header+j, seq, 8);
- j += 8;
- header[j++] = rec->type;
- header[j++] = rec->length >> 8;
- header[j++] = rec->length & 0xff;
+ return ret;
+}
- if (!ssl3_cbc_digest_record(
- hash,
- md, &md_size,
- header, rec->input,
- rec->length + md_size, orig_len,
- mac_sec, md_size,
- 1 /* is SSLv3 */))
- {
- return -1;
- }
- }
- else
- {
- unsigned int md_size_u;
- /* Chop the digest off the end :-) */
- EVP_MD_CTX_init(&md_ctx);
+int n_ssl3_mac(SSL *ssl, uint8_t *md, int send) {
+ SSL3_RECORD *rec;
+ uint8_t *mac_sec, *seq;
+ EVP_MD_CTX md_ctx;
+ const EVP_MD_CTX *hash;
+ uint8_t *p, rec_char;
+ size_t md_size, orig_len;
+ int npad;
+ int t;
- if (!EVP_MD_CTX_copy_ex(&md_ctx,hash))
- {
- EVP_MD_CTX_cleanup(&md_ctx);
- return -1;
- }
- EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
- EVP_DigestUpdate(&md_ctx,ssl3_pad_1,npad);
- EVP_DigestUpdate(&md_ctx,seq,8);
- rec_char=rec->type;
- EVP_DigestUpdate(&md_ctx,&rec_char,1);
- p=md;
- s2n(rec->length,p);
- EVP_DigestUpdate(&md_ctx,md,2);
- EVP_DigestUpdate(&md_ctx,rec->input,rec->length);
- EVP_DigestFinal_ex( &md_ctx,md,NULL);
+ if (send) {
+ rec = &ssl->s3->wrec;
+ mac_sec = &ssl->s3->write_mac_secret[0];
+ seq = &ssl->s3->write_sequence[0];
+ hash = ssl->write_hash;
+ } else {
+ rec = &ssl->s3->rrec;
+ mac_sec = &ssl->s3->read_mac_secret[0];
+ seq = &ssl->s3->read_sequence[0];
+ hash = ssl->read_hash;
+ }
- if (!EVP_MD_CTX_copy_ex(&md_ctx,hash))
- {
- EVP_MD_CTX_cleanup(&md_ctx);
- return -1;
- }
- EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
- EVP_DigestUpdate(&md_ctx,ssl3_pad_2,npad);
- EVP_DigestUpdate(&md_ctx,md,md_size);
- EVP_DigestFinal_ex( &md_ctx,md,&md_size_u);
- md_size = md_size_u;
+ t = EVP_MD_CTX_size(hash);
+ if (t < 0 || t > 20) {
+ return -1;
+ }
+ md_size = t;
+ npad = (48 / md_size) * md_size;
- EVP_MD_CTX_cleanup(&md_ctx);
- }
+ /* kludge: ssl3_cbc_remove_padding passes padding length in rec->type */
+ orig_len = rec->length + md_size + ((unsigned int)rec->type >> 8);
+ rec->type &= 0xff;
- ssl3_record_sequence_update(seq);
- return(md_size);
- }
+ if (!send && EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
+ ssl3_cbc_record_digest_supported(hash)) {
+ /* This is a CBC-encrypted record. We must avoid leaking any timing-side
+ * channel information about how many blocks of data we are hashing because
+ * that gives an attacker a timing-oracle. */
-void ssl3_record_sequence_update(unsigned char *seq)
- {
- int i;
+ /* npad is, at most, 48 bytes and that's with MD5:
+ * 16 + 48 + 8 (sequence bytes) + 1 + 2 = 75.
+ *
+ * With SHA-1 (the largest hash speced for SSLv3) the hash size goes up 4,
+ * but npad goes down by 8, resulting in a smaller total size. */
+ uint8_t header[75];
+ unsigned j = 0;
+ memcpy(header + j, mac_sec, md_size);
+ j += md_size;
+ memcpy(header + j, ssl3_pad_1, npad);
+ j += npad;
+ memcpy(header + j, seq, 8);
+ j += 8;
+ header[j++] = rec->type;
+ header[j++] = rec->length >> 8;
+ header[j++] = rec->length & 0xff;
- for (i=7; i>=0; i--)
- {
- ++seq[i];
- if (seq[i] != 0) break;
- }
- }
+ if (!ssl3_cbc_digest_record(hash, md, &md_size, header, rec->input,
+ rec->length + md_size, orig_len, mac_sec,
+ md_size, 1 /* is SSLv3 */)) {
+ return -1;
+ }
+ } else {
+ unsigned int md_size_u;
+ /* Chop the digest off the end :-) */
+ EVP_MD_CTX_init(&md_ctx);
-int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
- int len)
- {
- static const unsigned char *salt[3]={
- (const unsigned char *)"A",
- (const unsigned char *)"BB",
- (const unsigned char *)"CCC",
- };
- unsigned char buf[EVP_MAX_MD_SIZE];
- EVP_MD_CTX ctx;
- int i,ret=0;
- unsigned int n;
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- unsigned char *tmpout = out;
-#endif
+ if (!EVP_MD_CTX_copy_ex(&md_ctx, hash)) {
+ EVP_MD_CTX_cleanup(&md_ctx);
+ return -1;
+ }
+ EVP_DigestUpdate(&md_ctx, mac_sec, md_size);
+ EVP_DigestUpdate(&md_ctx, ssl3_pad_1, npad);
+ EVP_DigestUpdate(&md_ctx, seq, 8);
+ rec_char = rec->type;
+ EVP_DigestUpdate(&md_ctx, &rec_char, 1);
+ p = md;
+ s2n(rec->length, p);
+ EVP_DigestUpdate(&md_ctx, md, 2);
+ EVP_DigestUpdate(&md_ctx, rec->input, rec->length);
+ EVP_DigestFinal_ex(&md_ctx, md, NULL);
- EVP_MD_CTX_init(&ctx);
- for (i=0; i<3; i++)
- {
- if (!EVP_DigestInit_ex(&ctx, EVP_sha1(), NULL))
- {
- ret = 0;
- break;
- }
+ if (!EVP_MD_CTX_copy_ex(&md_ctx, hash)) {
+ EVP_MD_CTX_cleanup(&md_ctx);
+ return -1;
+ }
+ EVP_DigestUpdate(&md_ctx, mac_sec, md_size);
+ EVP_DigestUpdate(&md_ctx, ssl3_pad_2, npad);
+ EVP_DigestUpdate(&md_ctx, md, md_size);
+ EVP_DigestFinal_ex(&md_ctx, md, &md_size_u);
+ md_size = md_size_u;
- EVP_DigestUpdate(&ctx,salt[i],strlen((const char *)salt[i]));
- EVP_DigestUpdate(&ctx,p,len);
- EVP_DigestUpdate(&ctx,&(s->s3->client_random[0]),
- SSL3_RANDOM_SIZE);
- EVP_DigestUpdate(&ctx,&(s->s3->server_random[0]),
- SSL3_RANDOM_SIZE);
- EVP_DigestFinal_ex(&ctx,buf,&n);
+ EVP_MD_CTX_cleanup(&md_ctx);
+ }
- if (!EVP_DigestInit_ex(&ctx, EVP_md5(), NULL))
- {
- ret = 0;
- break;
- }
+ ssl3_record_sequence_update(seq);
+ return md_size;
+}
- EVP_DigestUpdate(&ctx,p,len);
- EVP_DigestUpdate(&ctx,buf,n);
- EVP_DigestFinal_ex(&ctx,out,&n);
- out+=n;
- ret+=n;
- }
- EVP_MD_CTX_cleanup(&ctx);
+void ssl3_record_sequence_update(uint8_t *seq) {
+ int i;
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- if (s->msg_callback)
- {
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
- p, len, s, s->msg_callback_arg);
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
- s->s3->client_random, SSL3_RANDOM_SIZE,
- s, s->msg_callback_arg);
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
- s->s3->server_random, SSL3_RANDOM_SIZE,
- s, s->msg_callback_arg);
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
- tmpout, SSL3_MASTER_SECRET_SIZE,
- s, s->msg_callback_arg);
- }
-#endif
- return(ret);
- }
+ for (i = 7; i >= 0; i--) {
+ ++seq[i];
+ if (seq[i] != 0) {
+ break;
+ }
+ }
+}
-int ssl3_alert_code(int code)
- {
- switch (code)
- {
- case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY);
- case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE);
- case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC);
- case SSL_AD_DECRYPTION_FAILED: return(SSL3_AD_BAD_RECORD_MAC);
- case SSL_AD_RECORD_OVERFLOW: return(SSL3_AD_BAD_RECORD_MAC);
- case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
- case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_NO_CERTIFICATE: return(SSL3_AD_NO_CERTIFICATE);
- case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE);
- case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
- case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
- case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
- case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
- case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER);
- case SSL_AD_UNKNOWN_CA: return(SSL3_AD_BAD_CERTIFICATE);
- case SSL_AD_ACCESS_DENIED: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_DECODE_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_DECRYPT_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_EXPORT_RESTRICTION: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_PROTOCOL_VERSION: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_INSUFFICIENT_SECURITY:return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_INTERNAL_ERROR: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_USER_CANCELLED: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_NO_RENEGOTIATION: return(-1); /* Don't send it :-) */
- case SSL_AD_UNSUPPORTED_EXTENSION: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_UNRECOGNIZED_NAME: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE);
- case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);
- case SSL_AD_INAPPROPRIATE_FALLBACK:return(SSL3_AD_INAPPROPRIATE_FALLBACK);
- default: return(-1);
- }
- }
+int ssl3_generate_master_secret(SSL *s, uint8_t *out, uint8_t *p, int len) {
+ uint8_t buf[EVP_MAX_MD_SIZE];
+ EVP_MD_CTX ctx;
+ int i, ret = 0;
+ unsigned int n;
+ EVP_MD_CTX_init(&ctx);
+ for (i = 0; i < 3; i++) {
+ if (!EVP_DigestInit_ex(&ctx, EVP_sha1(), NULL)) {
+ ret = 0;
+ break;
+ }
+
+ if (i == 0) {
+ EVP_DigestUpdate(&ctx, (const uint8_t*) "A", 1);
+ } else if (i == 1) {
+ EVP_DigestUpdate(&ctx, (const uint8_t*) "BB", 2);
+ } else {
+ EVP_DigestUpdate(&ctx, (const uint8_t*) "CCC", 3);
+ }
+ EVP_DigestUpdate(&ctx, p, len);
+ EVP_DigestUpdate(&ctx, &s->s3->client_random[0], SSL3_RANDOM_SIZE);
+ EVP_DigestUpdate(&ctx, &s->s3->server_random[0], SSL3_RANDOM_SIZE);
+ EVP_DigestFinal_ex(&ctx, buf, &n);
+
+ if (!EVP_DigestInit_ex(&ctx, EVP_md5(), NULL)) {
+ ret = 0;
+ break;
+ }
+
+ EVP_DigestUpdate(&ctx, p, len);
+ EVP_DigestUpdate(&ctx, buf, n);
+ EVP_DigestFinal_ex(&ctx, out, &n);
+ out += n;
+ ret += n;
+ }
+ EVP_MD_CTX_cleanup(&ctx);
+
+ return ret;
+}
+
+int ssl3_alert_code(int code) {
+ switch (code) {
+ case SSL_AD_CLOSE_NOTIFY:
+ return SSL3_AD_CLOSE_NOTIFY;
+
+ case SSL_AD_UNEXPECTED_MESSAGE:
+ return SSL3_AD_UNEXPECTED_MESSAGE;
+
+ case SSL_AD_BAD_RECORD_MAC:
+ return SSL3_AD_BAD_RECORD_MAC;
+
+ case SSL_AD_DECRYPTION_FAILED:
+ return SSL3_AD_BAD_RECORD_MAC;
+
+ case SSL_AD_RECORD_OVERFLOW:
+ return SSL3_AD_BAD_RECORD_MAC;
+
+ case SSL_AD_DECOMPRESSION_FAILURE:
+ return SSL3_AD_DECOMPRESSION_FAILURE;
+
+ case SSL_AD_HANDSHAKE_FAILURE:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_NO_CERTIFICATE:
+ return SSL3_AD_NO_CERTIFICATE;
+
+ case SSL_AD_BAD_CERTIFICATE:
+ return SSL3_AD_BAD_CERTIFICATE;
+
+ case SSL_AD_UNSUPPORTED_CERTIFICATE:
+ return SSL3_AD_UNSUPPORTED_CERTIFICATE;
+
+ case SSL_AD_CERTIFICATE_REVOKED:
+ return SSL3_AD_CERTIFICATE_REVOKED;
+
+ case SSL_AD_CERTIFICATE_EXPIRED:
+ return SSL3_AD_CERTIFICATE_EXPIRED;
+
+ case SSL_AD_CERTIFICATE_UNKNOWN:
+ return SSL3_AD_CERTIFICATE_UNKNOWN;
+
+ case SSL_AD_ILLEGAL_PARAMETER:
+ return SSL3_AD_ILLEGAL_PARAMETER;
+
+ case SSL_AD_UNKNOWN_CA:
+ return SSL3_AD_BAD_CERTIFICATE;
+
+ case SSL_AD_ACCESS_DENIED:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_DECODE_ERROR:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_DECRYPT_ERROR:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_EXPORT_RESTRICTION:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_PROTOCOL_VERSION:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_INSUFFICIENT_SECURITY:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_INTERNAL_ERROR:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_USER_CANCELLED:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_NO_RENEGOTIATION:
+ return -1; /* Don't send it. */
+
+ case SSL_AD_UNSUPPORTED_EXTENSION:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_CERTIFICATE_UNOBTAINABLE:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_UNRECOGNIZED_NAME:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
+ return SSL3_AD_HANDSHAKE_FAILURE;
+
+ case SSL_AD_UNKNOWN_PSK_IDENTITY:
+ return TLS1_AD_UNKNOWN_PSK_IDENTITY;
+
+ case SSL_AD_INAPPROPRIATE_FALLBACK:
+ return SSL3_AD_INAPPROPRIATE_FALLBACK;
+
+ default:
+ return -1;
+ }
+}