140 lines
4.6 KiB
Diff
140 lines
4.6 KiB
Diff
--- a/ssl/d1_clnt.c
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+++ b/ssl/d1_clnt.c
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@@ -130,7 +130,7 @@ static int dtls1_get_hello_verify(SSL *s
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static SSL_METHOD *dtls1_get_client_method(int ver)
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{
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- if (ver == DTLS1_VERSION)
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+ if (ver == DTLS1_VERSION || ver == DTLS1_BAD_VER)
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return(DTLSv1_client_method());
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else
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return(NULL);
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@@ -181,7 +181,8 @@ int dtls1_connect(SSL *s)
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s->server=0;
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if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
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- if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00))
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+ if ((s->version & 0xff00 ) != (DTLS1_VERSION & 0xff00) &&
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+ (s->version & 0xff00 ) != (DTLS1_BAD_VER & 0xff00))
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{
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SSLerr(SSL_F_DTLS1_CONNECT, ERR_R_INTERNAL_ERROR);
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ret = -1;
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--- a/ssl/d1_lib.c
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+++ b/ssl/d1_lib.c
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@@ -187,7 +187,10 @@ void dtls1_free(SSL *s)
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void dtls1_clear(SSL *s)
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{
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ssl3_clear(s);
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- s->version=DTLS1_VERSION;
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+ if (s->options & SSL_OP_CISCO_ANYCONNECT)
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+ s->version=DTLS1_BAD_VER;
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+ else
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+ s->version=DTLS1_VERSION;
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}
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/*
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--- a/ssl/d1_pkt.c
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+++ b/ssl/d1_pkt.c
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@@ -987,15 +987,17 @@ start:
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if (rr->type == SSL3_RT_CHANGE_CIPHER_SPEC)
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{
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struct ccs_header_st ccs_hdr;
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+ int ccs_hdr_len = DTLS1_CCS_HEADER_LENGTH;
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dtls1_get_ccs_header(rr->data, &ccs_hdr);
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/* 'Change Cipher Spec' is just a single byte, so we know
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* exactly what the record payload has to look like */
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/* XDTLS: check that epoch is consistent */
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- if ( (s->client_version == DTLS1_BAD_VER && rr->length != 3) ||
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- (s->client_version != DTLS1_BAD_VER && rr->length != DTLS1_CCS_HEADER_LENGTH) ||
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- (rr->off != 0) || (rr->data[0] != SSL3_MT_CCS))
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+ if (s->client_version == DTLS1_BAD_VER || s->version == DTLS1_BAD_VER)
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+ ccs_hdr_len = 3;
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+
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+ if ((rr->length != ccs_hdr_len) || (rr->off != 0) || (rr->data[0] != SSL3_MT_CCS))
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{
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i=SSL_AD_ILLEGAL_PARAMETER;
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SSLerr(SSL_F_DTLS1_READ_BYTES,SSL_R_BAD_CHANGE_CIPHER_SPEC);
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@@ -1311,7 +1313,7 @@ int do_dtls1_write(SSL *s, int type, con
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#if 0
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/* 'create_empty_fragment' is true only when this function calls itself */
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if (!clear && !create_empty_fragment && !s->s3->empty_fragment_done
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- && SSL_version(s) != DTLS1_VERSION)
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+ && SSL_version(s) != DTLS1_VERSION && SSL_version(s) != DTLS1_BAD_VER)
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{
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/* countermeasure against known-IV weakness in CBC ciphersuites
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* (see http://www.openssl.org/~bodo/tls-cbc.txt)
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--- a/ssl/s3_clnt.c
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+++ b/ssl/s3_clnt.c
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@@ -708,7 +708,7 @@ int ssl3_get_server_hello(SSL *s)
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if (!ok) return((int)n);
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- if ( SSL_version(s) == DTLS1_VERSION)
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+ if ( SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
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{
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if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
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{
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--- a/ssl/ssl.h
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+++ b/ssl/ssl.h
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@@ -510,6 +510,8 @@ typedef struct ssl_session_st
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#define SSL_OP_COOKIE_EXCHANGE 0x00002000L
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/* Don't use RFC4507 ticket extension */
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#define SSL_OP_NO_TICKET 0x00004000L
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+/* Use Cisco's "speshul" version of DTLS_BAD_VER (as client) */
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+#define SSL_OP_CISCO_ANYCONNECT 0x00008000L
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/* As server, disallow session resumption on renegotiation */
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#define SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION 0x00010000L
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--- a/ssl/ssl_lib.c
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+++ b/ssl/ssl_lib.c
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@@ -995,7 +995,8 @@ long SSL_ctrl(SSL *s,int cmd,long larg,v
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s->max_cert_list=larg;
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return(l);
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case SSL_CTRL_SET_MTU:
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- if (SSL_version(s) == DTLS1_VERSION)
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+ if (SSL_version(s) == DTLS1_VERSION ||
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+ SSL_version(s) == DTLS1_BAD_VER)
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{
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s->d1->mtu = larg;
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return larg;
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--- a/ssl/ssl_sess.c
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+++ b/ssl/ssl_sess.c
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@@ -211,6 +211,11 @@ int ssl_get_new_session(SSL *s, int sess
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ss->ssl_version=TLS1_VERSION;
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ss->session_id_length=SSL3_SSL_SESSION_ID_LENGTH;
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}
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+ else if (s->version == DTLS1_BAD_VER)
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+ {
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+ ss->ssl_version=DTLS1_BAD_VER;
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+ ss->session_id_length=SSL3_SSL_SESSION_ID_LENGTH;
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+ }
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else if (s->version == DTLS1_VERSION)
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{
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ss->ssl_version=DTLS1_VERSION;
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--- a/ssl/t1_enc.c
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+++ b/ssl/t1_enc.c
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@@ -765,10 +765,10 @@ int tls1_mac(SSL *ssl, unsigned char *md
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HMAC_CTX_init(&hmac);
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HMAC_Init_ex(&hmac,mac_sec,EVP_MD_size(hash),hash,NULL);
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- if (ssl->version == DTLS1_VERSION && ssl->client_version != DTLS1_BAD_VER)
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+ if (ssl->version == DTLS1_BAD_VER ||
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+ (ssl->version == DTLS1_VERSION && ssl->client_version != DTLS1_BAD_VER))
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{
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unsigned char dtlsseq[8],*p=dtlsseq;
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-
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s2n(send?ssl->d1->w_epoch:ssl->d1->r_epoch, p);
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memcpy (p,&seq[2],6);
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@@ -793,7 +793,7 @@ printf("rec=");
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{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
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#endif
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- if ( SSL_version(ssl) != DTLS1_VERSION)
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+ if ( SSL_version(ssl) != DTLS1_VERSION && SSL_version(ssl) != DTLS1_BAD_VER)
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{
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for (i=7; i>=0; i--)
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{
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