i = s->method->ssl3_enc->final_finish_mac(s,
sender, slen,
s->s3->tmp.finish_md);
- if (i == 0)
+ if (i <= 0)
return 0;
s->s3->tmp.finish_md_len = i;
memcpy(p, s->s3->tmp.finish_md, i);
}
#endif
+int ssl3_get_change_cipher_spec(SSL *s, int a, int b)
+{
+ int ok, al;
+ long n;
+
+ n = s->method->ssl_get_message(s, a, b, SSL3_MT_CHANGE_CIPHER_SPEC, 1, &ok);
+
+ if (!ok)
+ return ((int)n);
+
+ /*
+ * 'Change Cipher Spec' is just a single byte, which should already have
+ * been consumed by ssl_get_message() so there should be no bytes left,
+ * unless we're using DTLS1_BAD_VER, which has an extra 2 bytes
+ */
+ if (SSL_IS_DTLS(s)) {
+ if ((s->version == DTLS1_BAD_VER && n != DTLS1_CCS_HEADER_LENGTH + 1)
+ || (s->version != DTLS1_BAD_VER
+ && n != DTLS1_CCS_HEADER_LENGTH - 1)) {
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_CHANGE_CIPHER_SPEC, SSL_R_BAD_CHANGE_CIPHER_SPEC);
+ goto f_err;
+ }
+ } else {
+ if (n != 0) {
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_CHANGE_CIPHER_SPEC, SSL_R_BAD_CHANGE_CIPHER_SPEC);
+ goto f_err;
+ }
+ }
+
+ /* Check we have a cipher to change to */
+ if (s->s3->tmp.new_cipher == NULL) {
+ al = SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_CHANGE_CIPHER_SPEC, SSL_R_CCS_RECEIVED_EARLY);
+ goto f_err;
+ }
+
+ s->s3->change_cipher_spec = 1;
+ if (!ssl3_do_change_cipher_spec(s)) {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CHANGE_CIPHER_SPEC, ERR_R_INTERNAL_ERROR);
+ goto f_err;
+ }
+
+ if (SSL_IS_DTLS(s)) {
+ dtls1_reset_seq_numbers(s, SSL3_CC_READ);
+
+ if (s->version == DTLS1_BAD_VER)
+ s->d1->handshake_read_seq++;
+
+#ifndef OPENSSL_NO_SCTP
+ /*
+ * Remember that a CCS has been received, so that an old key of
+ * SCTP-Auth can be deleted when a CCS is sent. Will be ignored if no
+ * SCTP is used
+ */
+ BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_AUTH_CCS_RCVD, 1, NULL);
+#endif
+ }
+
+ return 1;
+ f_err:
+ ssl3_send_alert(s, SSL3_AL_FATAL, al);
+ return 0;
+}
+
+
int ssl3_get_finished(SSL *s, int a, int b)
{
int al, i, ok;
unsigned char *p;
unsigned long l;
long n;
- int i, al;
+ int i, al, recvd_type;
if (s->s3->tmp.reuse_message) {
s->s3->tmp.reuse_message = 0;
}
*ok = 1;
s->state = stn;
- s->init_msg = s->init_buf->data + 4;
+ s->init_msg = s->init_buf->data + SSL3_HM_HEADER_LENGTH;
s->init_num = (int)s->s3->tmp.message_size;
return s->init_num;
}
p = (unsigned char *)s->init_buf->data;
- if (s->state == st1) { /* s->init_num < 4 */
+ if (s->state == st1) {
+ /* s->init_num < SSL3_HM_HEADER_LENGTH */
int skip_message;
do {
- while (s->init_num < 4) {
- i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE,
- &p[s->init_num],
- 4 - s->init_num, 0);
+ while (s->init_num < SSL3_HM_HEADER_LENGTH) {
+ i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, &recvd_type,
+ &p[s->init_num], SSL3_HM_HEADER_LENGTH - s->init_num, 0);
if (i <= 0) {
s->rwstate = SSL_READING;
*ok = 0;
return i;
}
+ if (s->init_num == 0
+ && recvd_type == SSL3_RT_CHANGE_CIPHER_SPEC
+ && (mt < 0 || mt == SSL3_MT_CHANGE_CIPHER_SPEC)) {
+ if (*p != SSL3_MT_CCS) {
+ al = SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,
+ SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
+ s->init_num = i - 1;
+ s->init_msg = p + 1;
+ s->s3->tmp.message_type = SSL3_MT_CHANGE_CIPHER_SPEC;
+ s->s3->tmp.message_size = i - 1;
+ s->state = stn;
+ *ok = 1;
+ if (s->msg_callback)
+ s->msg_callback(0, s->version,
+ SSL3_RT_CHANGE_CIPHER_SPEC, p, 1, s,
+ s->msg_callback_arg);
+ return i - 1;
+ } else if (recvd_type != SSL3_RT_HANDSHAKE) {
+ al = SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_CCS_RECEIVED_EARLY);
+ goto f_err;
+ }
s->init_num += i;
}
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
- p, 4, s, s->msg_callback_arg);
+ p, SSL3_HM_HEADER_LENGTH, s,
+ s->msg_callback_arg);
}
- }
- while (skip_message);
-
- /* s->init_num == 4 */
+ } while (skip_message);
+ /* s->init_num == SSL3_HM_HEADER_LENGTH */
if ((mt >= 0) && (*p != mt)) {
al = SSL_AD_UNEXPECTED_MESSAGE;
s->s3->tmp.message_type = *(p++);
- n2l3(p, l);
- if (l > (unsigned long)max) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
- if (l > (INT_MAX - 4)) { /* BUF_MEM_grow takes an 'int' parameter */
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
- if (l && !BUF_MEM_grow_clean(s->init_buf, (int)l + 4)) {
- SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB);
- goto err;
- }
- s->s3->tmp.message_size = l;
- s->state = stn;
+ if(RECORD_LAYER_is_sslv2_record(&s->rlayer)) {
+ /*
+ * Only happens with SSLv3+ in an SSLv2 backward compatible
+ * ClientHello
+ */
+ /*
+ * Total message size is the remaining record bytes to read
+ * plus the SSL3_HM_HEADER_LENGTH bytes that we already read
+ */
+ l = RECORD_LAYER_get_rrec_length(&s->rlayer)
+ + SSL3_HM_HEADER_LENGTH;
+ if (l && !BUF_MEM_grow_clean(s->init_buf, (int)l)) {
+ SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB);
+ goto err;
+ }
+ s->s3->tmp.message_size = l;
+ s->state = stn;
+
+ s->init_msg = s->init_buf->data;
+ s->init_num = SSL3_HM_HEADER_LENGTH;
+ } else {
+ n2l3(p, l);
+ if (l > (unsigned long)max) {
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ /* BUF_MEM_grow takes an 'int' parameter */
+ if (l > (INT_MAX - SSL3_HM_HEADER_LENGTH)) {
+ al = SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE, SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ if (l && !BUF_MEM_grow_clean(s->init_buf,
+ (int)l + SSL3_HM_HEADER_LENGTH)) {
+ SSLerr(SSL_F_SSL3_GET_MESSAGE, ERR_R_BUF_LIB);
+ goto err;
+ }
+ s->s3->tmp.message_size = l;
+ s->state = stn;
- s->init_msg = s->init_buf->data + 4;
- s->init_num = 0;
+ s->init_msg = s->init_buf->data + SSL3_HM_HEADER_LENGTH;
+ s->init_num = 0;
+ }
}
/* next state (stn) */
p = s->init_msg;
n = s->s3->tmp.message_size - s->init_num;
while (n > 0) {
- i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, &p[s->init_num],
- n, 0);
+ i = s->method->ssl_read_bytes(s, SSL3_RT_HANDSHAKE, NULL,
+ &p[s->init_num], n, 0);
if (i <= 0) {
s->rwstate = SSL_READING;
*ok = 0;
#endif
/* Feed this message into MAC computation. */
- ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
- if (s->msg_callback)
- s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data,
- (size_t)s->init_num + 4, s, s->msg_callback_arg);
+ if(RECORD_LAYER_is_sslv2_record(&s->rlayer)) {
+ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num);
+ if (s->msg_callback)
+ s->msg_callback(0, SSL2_VERSION, 0, s->init_buf->data,
+ (size_t)s->init_num, s, s->msg_callback_arg);
+ } else {
+ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data,
+ s->init_num + SSL3_HM_HEADER_LENGTH);
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data,
+ (size_t)s->init_num + SSL3_HM_HEADER_LENGTH, s,
+ s->msg_callback_arg);
+ }
+
*ok = 1;
return s->init_num;
f_err:
ret = SSL_PKEY_ECC;
}
#endif
- else if (i == NID_id_GostR3410_94 || i == NID_id_GostR3410_94_cc) {
- ret = SSL_PKEY_GOST94;
- } else if (i == NID_id_GostR3410_2001 || i == NID_id_GostR3410_2001_cc) {
+ else if (i == NID_id_GostR3410_2001) {
ret = SSL_PKEY_GOST01;
} else if (x && (i == EVP_PKEY_DH || i == EVP_PKEY_DHX)) {
/*
projects / openssl.git / blobdiff