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-rw-r--r--openssl/ssl/d1_clnt.c451
1 files changed, 415 insertions, 36 deletions
diff --git a/openssl/ssl/d1_clnt.c b/openssl/ssl/d1_clnt.c
index 49c6760d1..5bc9eb660 100644
--- a/openssl/ssl/d1_clnt.c
+++ b/openssl/ssl/d1_clnt.c
@@ -4,7 +4,7 @@
* (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
*/
/* ====================================================================
- * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 1999-2007 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -115,22 +115,25 @@
#include <stdio.h>
#include "ssl_locl.h"
+#ifndef OPENSSL_NO_KRB5
#include "kssl_lcl.h"
+#endif
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/md5.h>
+#include <openssl/bn.h>
#ifndef OPENSSL_NO_DH
#include <openssl/dh.h>
#endif
-static SSL_METHOD *dtls1_get_client_method(int ver);
+static const SSL_METHOD *dtls1_get_client_method(int ver);
static int dtls1_get_hello_verify(SSL *s);
-static SSL_METHOD *dtls1_get_client_method(int ver)
+static const SSL_METHOD *dtls1_get_client_method(int ver)
{
- if (ver == DTLS1_VERSION)
+ if (ver == DTLS1_VERSION || ver == DTLS1_BAD_VER)
return(DTLSv1_client_method());
else
return(NULL);
@@ -144,8 +147,7 @@ IMPLEMENT_dtls1_meth_func(DTLSv1_client_method,
int dtls1_connect(SSL *s)
{
BUF_MEM *buf=NULL;
- unsigned long Time=(unsigned long)time(NULL),l;
- long num1;
+ unsigned long Time=(unsigned long)time(NULL);
void (*cb)(const SSL *ssl,int type,int val)=NULL;
int ret= -1;
int new_state,state,skip=0;;
@@ -181,7 +183,8 @@ int dtls1_connect(SSL *s)
s->server=0;
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
- if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00))
+ if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00) &&
+ (s->version & 0xff00 ) != (DTLS1_BAD_VER & 0xff00))
{
SSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);
ret = -1;
@@ -219,6 +222,8 @@ int dtls1_connect(SSL *s)
s->init_num=0;
/* mark client_random uninitialized */
memset(s->s3->client_random,0,sizeof(s->s3->client_random));
+ s->d1->send_cookie = 0;
+ s->hit = 0;
break;
case SSL3_ST_CW_CLNT_HELLO_A:
@@ -229,6 +234,7 @@ int dtls1_connect(SSL *s)
/* every DTLS ClientHello resets Finished MAC */
ssl3_init_finished_mac(s);
+ dtls1_start_timer(s);
ret=dtls1_client_hello(s);
if (ret <= 0) goto end;
@@ -254,6 +260,7 @@ int dtls1_connect(SSL *s)
if (ret <= 0) goto end;
else
{
+ dtls1_stop_timer(s);
if (s->hit)
s->state=SSL3_ST_CR_FINISHED_A;
else
@@ -268,6 +275,7 @@ int dtls1_connect(SSL *s)
ret = dtls1_get_hello_verify(s);
if ( ret <= 0)
goto end;
+ dtls1_stop_timer(s);
if ( s->d1->send_cookie) /* start again, with a cookie */
s->state=SSL3_ST_CW_CLNT_HELLO_A;
else
@@ -277,15 +285,44 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
- /* Check if it is anon DH */
- if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
+#ifndef OPENSSL_NO_TLSEXT
+ ret=ssl3_check_finished(s);
+ if (ret <= 0) goto end;
+ if (ret == 2)
+ {
+ s->hit = 1;
+ if (s->tlsext_ticket_expected)
+ s->state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+ }
+#endif
+ /* Check if it is anon DH or PSK */
+ if (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL) &&
+ !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK))
{
ret=ssl3_get_server_certificate(s);
if (ret <= 0) goto end;
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_status_expected)
+ s->state=SSL3_ST_CR_CERT_STATUS_A;
+ else
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+ else
+ {
+ skip = 1;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+#else
}
else
skip=1;
+
s->state=SSL3_ST_CR_KEY_EXCH_A;
+#endif
s->init_num=0;
break;
@@ -329,6 +366,7 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CW_CERT_B:
case SSL3_ST_CW_CERT_C:
case SSL3_ST_CW_CERT_D:
+ dtls1_start_timer(s);
ret=dtls1_send_client_certificate(s);
if (ret <= 0) goto end;
s->state=SSL3_ST_CW_KEY_EXCH_A;
@@ -337,9 +375,9 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CW_KEY_EXCH_A:
case SSL3_ST_CW_KEY_EXCH_B:
+ dtls1_start_timer(s);
ret=dtls1_send_client_key_exchange(s);
if (ret <= 0) goto end;
- l=s->s3->tmp.new_cipher->algorithms;
/* EAY EAY EAY need to check for DH fix cert
* sent back */
/* For TLS, cert_req is set to 2, so a cert chain
@@ -359,6 +397,7 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CW_CERT_VRFY_A:
case SSL3_ST_CW_CERT_VRFY_B:
+ dtls1_start_timer(s);
ret=dtls1_send_client_verify(s);
if (ret <= 0) goto end;
s->state=SSL3_ST_CW_CHANGE_A;
@@ -368,6 +407,7 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CW_CHANGE_A:
case SSL3_ST_CW_CHANGE_B:
+ dtls1_start_timer(s);
ret=dtls1_send_change_cipher_spec(s,
SSL3_ST_CW_CHANGE_A,SSL3_ST_CW_CHANGE_B);
if (ret <= 0) goto end;
@@ -402,6 +442,7 @@ int dtls1_connect(SSL *s)
case SSL3_ST_CW_FINISHED_A:
case SSL3_ST_CW_FINISHED_B:
+ dtls1_start_timer(s);
ret=dtls1_send_finished(s,
SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
s->method->ssl3_enc->client_finished_label,
@@ -423,20 +464,43 @@ int dtls1_connect(SSL *s)
}
else
{
+#ifndef OPENSSL_NO_TLSEXT
+ /* Allow NewSessionTicket if ticket expected */
+ if (s->tlsext_ticket_expected)
+ s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+#endif
+
s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
}
s->init_num=0;
- /* mark client_random uninitialized */
- memset (s->s3->client_random,0,sizeof(s->s3->client_random));
-
break;
+#ifndef OPENSSL_NO_TLSEXT
+ case SSL3_ST_CR_SESSION_TICKET_A:
+ case SSL3_ST_CR_SESSION_TICKET_B:
+ ret=ssl3_get_new_session_ticket(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_CR_CERT_STATUS_A:
+ case SSL3_ST_CR_CERT_STATUS_B:
+ ret=ssl3_get_cert_status(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ s->init_num=0;
+ break;
+#endif
+
case SSL3_ST_CR_FINISHED_A:
case SSL3_ST_CR_FINISHED_B:
-
+ s->d1->change_cipher_spec_ok = 1;
ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
SSL3_ST_CR_FINISHED_B);
if (ret <= 0) goto end;
+ dtls1_stop_timer(s);
if (s->hit)
s->state=SSL3_ST_CW_CHANGE_A;
@@ -446,16 +510,13 @@ int dtls1_connect(SSL *s)
break;
case SSL3_ST_CW_FLUSH:
- /* number of bytes to be flushed */
- num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
- if (num1 > 0)
+ s->rwstate=SSL_WRITING;
+ if (BIO_flush(s->wbio) <= 0)
{
- s->rwstate=SSL_WRITING;
- num1=BIO_flush(s->wbio);
- if (num1 <= 0) { ret= -1; goto end; }
- s->rwstate=SSL_NOTHING;
+ ret= -1;
+ goto end;
}
-
+ s->rwstate=SSL_NOTHING;
s->state=s->s3->tmp.next_state;
break;
@@ -492,6 +553,7 @@ int dtls1_connect(SSL *s)
/* done with handshaking */
s->d1->handshake_read_seq = 0;
+ s->d1->next_handshake_write_seq = 0;
goto end;
/* break; */
@@ -541,8 +603,14 @@ int dtls1_client_hello(SSL *s)
buf=(unsigned char *)s->init_buf->data;
if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
{
+ SSL_SESSION *sess = s->session;
if ((s->session == NULL) ||
(s->session->ssl_version != s->version) ||
+#ifdef OPENSSL_NO_TLSEXT
+ !sess->session_id_length ||
+#else
+ (!sess->session_id_length && !sess->tlsext_tick) ||
+#endif
(s->session->not_resumable))
{
if (!ssl_get_new_session(s,0))
@@ -551,6 +619,7 @@ int dtls1_client_hello(SSL *s)
/* else use the pre-loaded session */
p=s->s3->client_random;
+
/* if client_random is initialized, reuse it, we are
* required to use same upon reply to HelloVerify */
for (i=0;p[i]=='\0' && i<sizeof(s->s3->client_random);i++) ;
@@ -558,7 +627,7 @@ int dtls1_client_hello(SSL *s)
{
Time=(unsigned long)time(NULL); /* Time */
l2n(Time,p);
- RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4);
+ RAND_pseudo_bytes(p,sizeof(s->s3->client_random)-4);
}
/* Do the message type and length last */
@@ -621,7 +690,15 @@ int dtls1_client_hello(SSL *s)
*(p++)=comp->id;
}
*(p++)=0; /* Add the NULL method */
-
+
+#ifndef OPENSSL_NO_TLSEXT
+ if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+#endif
+
l=(p-d);
d=buf;
@@ -697,7 +774,7 @@ int dtls1_send_client_key_exchange(SSL *s)
{
unsigned char *p,*d;
int n;
- unsigned long l;
+ unsigned long alg_k;
#ifndef OPENSSL_NO_RSA
unsigned char *q;
EVP_PKEY *pkey=NULL;
@@ -705,18 +782,26 @@ int dtls1_send_client_key_exchange(SSL *s)
#ifndef OPENSSL_NO_KRB5
KSSL_ERR kssl_err;
#endif /* OPENSSL_NO_KRB5 */
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *clnt_ecdh = NULL;
+ const EC_POINT *srvr_ecpoint = NULL;
+ EVP_PKEY *srvr_pub_pkey = NULL;
+ unsigned char *encodedPoint = NULL;
+ int encoded_pt_len = 0;
+ BN_CTX * bn_ctx = NULL;
+#endif
if (s->state == SSL3_ST_CW_KEY_EXCH_A)
{
d=(unsigned char *)s->init_buf->data;
p= &(d[DTLS1_HM_HEADER_LENGTH]);
-
- l=s->s3->tmp.new_cipher->algorithms;
+
+ alg_k=s->s3->tmp.new_cipher->algorithm_mkey;
/* Fool emacs indentation */
if (0) {}
#ifndef OPENSSL_NO_RSA
- else if (l & SSL_kRSA)
+ else if (alg_k & SSL_kRSA)
{
RSA *rsa;
unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
@@ -775,7 +860,7 @@ int dtls1_send_client_key_exchange(SSL *s)
}
#endif
#ifndef OPENSSL_NO_KRB5
- else if (l & SSL_kKRB5)
+ else if (alg_k & SSL_kKRB5)
{
krb5_error_code krb5rc;
KSSL_CTX *kssl_ctx = s->kssl_ctx;
@@ -783,7 +868,7 @@ int dtls1_send_client_key_exchange(SSL *s)
krb5_data *enc_ticket;
krb5_data authenticator, *authp = NULL;
EVP_CIPHER_CTX ciph_ctx;
- EVP_CIPHER *enc = NULL;
+ const EVP_CIPHER *enc = NULL;
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
unsigned char epms[SSL_MAX_MASTER_KEY_LENGTH
@@ -794,7 +879,7 @@ int dtls1_send_client_key_exchange(SSL *s)
#ifdef KSSL_DEBUG
printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
- l, SSL_kKRB5);
+ alg_k, SSL_kKRB5);
#endif /* KSSL_DEBUG */
authp = NULL;
@@ -884,7 +969,7 @@ int dtls1_send_client_key_exchange(SSL *s)
sizeof tmp_buf);
EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
outl += padl;
- if (outl > sizeof epms)
+ if (outl > (int)sizeof epms)
{
SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
@@ -907,7 +992,7 @@ int dtls1_send_client_key_exchange(SSL *s)
}
#endif
#ifndef OPENSSL_NO_DH
- else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
+ else if (alg_k & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
{
DH *dh_srvr,*dh_clnt;
@@ -962,6 +1047,274 @@ int dtls1_send_client_key_exchange(SSL *s)
/* perhaps clean things up a bit EAY EAY EAY EAY*/
}
#endif
+#ifndef OPENSSL_NO_ECDH
+ else if (alg_k & (SSL_kEECDH|SSL_kECDHr|SSL_kECDHe))
+ {
+ const EC_GROUP *srvr_group = NULL;
+ EC_KEY *tkey;
+ int ecdh_clnt_cert = 0;
+ int field_size = 0;
+
+ /* Did we send out the client's
+ * ECDH share for use in premaster
+ * computation as part of client certificate?
+ * If so, set ecdh_clnt_cert to 1.
+ */
+ if ((alg_k & (SSL_kECDHr|SSL_kECDHe)) && (s->cert != NULL))
+ {
+ /* XXX: For now, we do not support client
+ * authentication using ECDH certificates.
+ * To add such support, one needs to add
+ * code that checks for appropriate
+ * conditions and sets ecdh_clnt_cert to 1.
+ * For example, the cert have an ECC
+ * key on the same curve as the server's
+ * and the key should be authorized for
+ * key agreement.
+ *
+ * One also needs to add code in ssl3_connect
+ * to skip sending the certificate verify
+ * message.
+ *
+ * if ((s->cert->key->privatekey != NULL) &&
+ * (s->cert->key->privatekey->type ==
+ * EVP_PKEY_EC) && ...)
+ * ecdh_clnt_cert = 1;
+ */
+ }
+
+ if (s->session->sess_cert->peer_ecdh_tmp != NULL)
+ {
+ tkey = s->session->sess_cert->peer_ecdh_tmp;
+ }
+ else
+ {
+ /* Get the Server Public Key from Cert */
+ srvr_pub_pkey = X509_get_pubkey(s->session-> \
+ sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
+ if ((srvr_pub_pkey == NULL) ||
+ (srvr_pub_pkey->type != EVP_PKEY_EC) ||
+ (srvr_pub_pkey->pkey.ec == NULL))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ tkey = srvr_pub_pkey->pkey.ec;
+ }
+
+ srvr_group = EC_KEY_get0_group(tkey);
+ srvr_ecpoint = EC_KEY_get0_public_key(tkey);
+
+ if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if ((clnt_ecdh=EC_KEY_new()) == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ if (ecdh_clnt_cert)
+ {
+ /* Reuse key info from our certificate
+ * We only need our private key to perform
+ * the ECDH computation.
+ */
+ const BIGNUM *priv_key;
+ tkey = s->cert->key->privatekey->pkey.ec;
+ priv_key = EC_KEY_get0_private_key(tkey);
+ if (priv_key == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ }
+ else
+ {
+ /* Generate a new ECDH key pair */
+ if (!(EC_KEY_generate_key(clnt_ecdh)))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+ }
+
+ /* use the 'p' output buffer for the ECDH key, but
+ * make sure to clear it out afterwards
+ */
+
+ field_size = EC_GROUP_get_degree(srvr_group);
+ if (field_size <= 0)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+ n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
+ if (n <= 0)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ /* generate master key from the result */
+ s->session->master_key_length = s->method->ssl3_enc \
+ -> generate_master_secret(s,
+ s->session->master_key,
+ p, n);
+
+ memset(p, 0, n); /* clean up */
+
+ if (ecdh_clnt_cert)
+ {
+ /* Send empty client key exch message */
+ n = 0;
+ }
+ else
+ {
+ /* First check the size of encoding and
+ * allocate memory accordingly.
+ */
+ encoded_pt_len =
+ EC_POINT_point2oct(srvr_group,
+ EC_KEY_get0_public_key(clnt_ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ NULL, 0, NULL);
+
+ encodedPoint = (unsigned char *)
+ OPENSSL_malloc(encoded_pt_len *
+ sizeof(unsigned char));
+ bn_ctx = BN_CTX_new();
+ if ((encodedPoint == NULL) ||
+ (bn_ctx == NULL))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /* Encode the public key */
+ n = EC_POINT_point2oct(srvr_group,
+ EC_KEY_get0_public_key(clnt_ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ encodedPoint, encoded_pt_len, bn_ctx);
+
+ *p = n; /* length of encoded point */
+ /* Encoded point will be copied here */
+ p += 1;
+ /* copy the point */
+ memcpy((unsigned char *)p, encodedPoint, n);
+ /* increment n to account for length field */
+ n += 1;
+ }
+
+ /* Free allocated memory */
+ BN_CTX_free(bn_ctx);
+ if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+ if (clnt_ecdh != NULL)
+ EC_KEY_free(clnt_ecdh);
+ EVP_PKEY_free(srvr_pub_pkey);
+ }
+#endif /* !OPENSSL_NO_ECDH */
+
+#ifndef OPENSSL_NO_PSK
+ else if (alg_k & SSL_kPSK)
+ {
+ char identity[PSK_MAX_IDENTITY_LEN];
+ unsigned char *t = NULL;
+ unsigned char psk_or_pre_ms[PSK_MAX_PSK_LEN*2+4];
+ unsigned int pre_ms_len = 0, psk_len = 0;
+ int psk_err = 1;
+
+ n = 0;
+ if (s->psk_client_callback == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ SSL_R_PSK_NO_CLIENT_CB);
+ goto err;
+ }
+
+ psk_len = s->psk_client_callback(s, s->ctx->psk_identity_hint,
+ identity, PSK_MAX_IDENTITY_LEN,
+ psk_or_pre_ms, sizeof(psk_or_pre_ms));
+ if (psk_len > PSK_MAX_PSK_LEN)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto psk_err;
+ }
+ else if (psk_len == 0)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ SSL_R_PSK_IDENTITY_NOT_FOUND);
+ goto psk_err;
+ }
+
+ /* create PSK pre_master_secret */
+ pre_ms_len = 2+psk_len+2+psk_len;
+ t = psk_or_pre_ms;
+ memmove(psk_or_pre_ms+psk_len+4, psk_or_pre_ms, psk_len);
+ s2n(psk_len, t);
+ memset(t, 0, psk_len);
+ t+=psk_len;
+ s2n(psk_len, t);
+
+ if (s->session->psk_identity_hint != NULL)
+ OPENSSL_free(s->session->psk_identity_hint);
+ s->session->psk_identity_hint = BUF_strdup(s->ctx->psk_identity_hint);
+ if (s->ctx->psk_identity_hint != NULL &&
+ s->session->psk_identity_hint == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto psk_err;
+ }
+
+ if (s->session->psk_identity != NULL)
+ OPENSSL_free(s->session->psk_identity);
+ s->session->psk_identity = BUF_strdup(identity);
+ if (s->session->psk_identity == NULL)
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto psk_err;
+ }
+
+ s->session->master_key_length =
+ s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key,
+ psk_or_pre_ms, pre_ms_len);
+ n = strlen(identity);
+ s2n(n, p);
+ memcpy(p, identity, n);
+ n+=2;
+ psk_err = 0;
+ psk_err:
+ OPENSSL_cleanse(identity, PSK_MAX_IDENTITY_LEN);
+ OPENSSL_cleanse(psk_or_pre_ms, sizeof(psk_or_pre_ms));
+ if (psk_err != 0)
+ {
+ ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
+ goto err;
+ }
+ }
+#endif
else
{
ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
@@ -990,6 +1343,13 @@ int dtls1_send_client_key_exchange(SSL *s)
/* SSL3_ST_CW_KEY_EXCH_B */
return(dtls1_do_write(s,SSL3_RT_HANDSHAKE));
err:
+#ifndef OPENSSL_NO_ECDH
+ BN_CTX_free(bn_ctx);
+ if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+ if (clnt_ecdh != NULL)
+ EC_KEY_free(clnt_ecdh);
+ EVP_PKEY_free(srvr_pub_pkey);
+#endif
return(-1);
}
@@ -1002,7 +1362,7 @@ int dtls1_send_client_verify(SSL *s)
unsigned u=0;
#endif
unsigned long n;
-#ifndef OPENSSL_NO_DSA
+#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
int j;
#endif
@@ -1012,14 +1372,16 @@ int dtls1_send_client_verify(SSL *s)
p= &(d[DTLS1_HM_HEADER_LENGTH]);
pkey=s->cert->key->privatekey;
- s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
+ s->method->ssl3_enc->cert_verify_mac(s,
+ NID_sha1,
&(data[MD5_DIGEST_LENGTH]));
#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA)
{
s->method->ssl3_enc->cert_verify_mac(s,
- &(s->s3->finish_dgst1),&(data[0]));
+ NID_md5,
+ &(data[0]));
if (RSA_sign(NID_md5_sha1, data,
MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
&(p[2]), &u, pkey->pkey.rsa) <= 0 )
@@ -1048,6 +1410,23 @@ int dtls1_send_client_verify(SSL *s)
}
else
#endif
+#ifndef OPENSSL_NO_ECDSA
+ if (pkey->type == EVP_PKEY_EC)
+ {
+ if (!ECDSA_sign(pkey->save_type,
+ &(data[MD5_DIGEST_LENGTH]),
+ SHA_DIGEST_LENGTH,&(p[2]),
+ (unsigned int *)&j,pkey->pkey.ec))
+ {
+ SSLerr(SSL_F_DTLS1_SEND_CLIENT_VERIFY,
+ ERR_R_ECDSA_LIB);
+ goto err;
+ }
+ s2n(j,p);
+ n=j+2;
+ }
+ else
+#endif
{
SSLerr(SSL_F_DTLS1_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
goto err;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-08 14:55:12 +0000