crypto/tls: tls.Dial get error "local error: unexpected message"

[gopherbot]

by webluoye:

What does 'go version' print?
go version go1.2.1 linux/amd64

What steps reproduce the problem?

If possible, include a link to a program on play.golang.org.
cert, err := tls.LoadX509KeyPair("eeee.crt", "eeee.pem")
if err != nil {
    log.Fatalf("server: loadkeys: %s", err)
}
config := tls.Config{Certificates:
[]tls.Certificate{cert},ClientAuth:tls.VerifyClientCertIfGiven,InsecureSkipVerify: true}
conn, err := tls.Dial("tcp", "218.241.106.8:4121", &config)
if err != nil {
    log.Fatalf("client DialTCP: %s", err)
}


What happened?
tls.Dial get error message "client DialTCP: local error: unexpected message"

What should have happened instead?
it can connect use eeee.pem and eeee.crt via openssl

Please provide any additional information below.
openssl s_client -connect 218.241.106.8:4121 -cert eeee.crt -key eeee.pem -state
-showcerts

---
SSL handshake has read 19310 bytes and written 1018 bytes

---
New, TLSv1/SSLv3, Cipher is EDH-RSA-DES-CBC3-SHA
Server public key is 1024 bit
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol  : TLSv1
    Cipher    : EDH-RSA-DES-CBC3-SHA
    Session-ID: 536B3891C89AACE7E71ACF2D6F3D9D8A723025CD1711863FE075C24F278B7F8D
    Session-ID-ctx: 
    Master-Key: E895BA788756B389744916D6790AD116CF6B669B2242C880791FAF049D9D22183F1750A2CE60BEFA108B79938007B566
    Key-Arg   : None
    Krb5 Principal: None
    PSK identity: None
    PSK identity hint: None
    Start Time: 1399535765
    Timeout   : 300 (sec)
    Verify return code: 18 (self signed certificate)

---
<?xml version="1.0" encoding="UTF-8"
standalone="no"?>

[ianlancetaylor]

Comment 1:

Labels changed: added repo-main, release-none.

[agl]

Comment 2:

(Setting ClientAuth on a tls.Config for use in a client doesn't do anything.)
For me, that server doesn't even get to the point of requesting a client certificate:
$ openssl s_client -tls1 -connect 218.241.106.8:4121 -debug
CONNECTED(00000003)
write to 0x113f1f0 [0x1149233] (225 bytes => 225 (0xE1))
0000 - 16 03 01 00 dc 01 00 00-d8 03 01 53 6b f0 d9 31   ...........Sk..1
0010 - 62 df 6b 91 7d 55 83 2f-bd c3 53 39 ea db b8 74   b.k.}U./..S9...t
0020 - e3 df 87 ca 7f 44 fa 2b-36 4e 16 00 00 66 c0 14   .....D.+6N...f..
0030 - c0 0a c0 22 c0 21 00 39-00 38 00 88 00 87 c0 0f   ...".!.9.8......
0040 - c0 05 00 35 00 84 c0 12-c0 08 c0 1c c0 1b 00 16   ...5............
0050 - 00 13 c0 0d c0 03 00 0a-c0 13 c0 09 c0 1f c0 1e   ................
0060 - 00 33 00 32 00 9a 00 99-00 45 00 44 c0 0e c0 04   .3.2.....E.D....
0070 - 00 2f 00 96 00 41 c0 11-c0 07 c0 0c c0 02 00 05   ./...A..........
0080 - 00 04 00 15 00 12 00 09-00 14 00 11 00 08 00 06   ................
0090 - 00 03 00 ff 01 00 00 49-00 0b 00 04 03 00 01 02   .......I........
00a0 - 00 0a 00 34 00 32 00 0e-00 0d 00 19 00 0b 00 0c   ...4.2..........
00b0 - 00 18 00 09 00 0a 00 16-00 17 00 08 00 06 00 07   ................
00c0 - 00 14 00 15 00 04 00 05-00 12 00 13 00 01 00 02   ................
00d0 - 00 03 00 0f 00 10 00 11-00 23 00 00 00 0f 00 01   .........#......
00e0 - 01                                                .
read from 0x113f1f0 [0x1144ce3] (5 bytes => 5 (0x5))
0000 - 15 03 01 00 02                                    .....
read from 0x113f1f0 [0x1144ce8] (2 bytes => 2 (0x2))
0000 - 01                                                .
0002 - <SPACES/NULS>
140649469277856:error:1409E0E5:SSL routines:SSL3_WRITE_BYTES:ssl handshake
failure:s3_pkt.c:596:

[gopherbot]

Comment 3 by webluoye:

Thanks all.
but use c language is success.
        
int main(int argc, char *argv[])
{
        int i,length,buf_len;
        char buf_read[10240];
        char buf_write[10240];
        char domain[100];
        SSL_CTX *ctx;
        SSL *ssl;
        memset(buf_read, '\0', 10240);
        memset(buf_write, '\0', 10240);
        memset(domain, '\0', 100);
        srand((unsigned)time(NULL));
        
        SSL_load_error_strings();
        SSLeay_add_ssl_algorithms();
        ctx = SSL_CTX_new(SSLv23_client_method());
        CHK_NULL(ctx);
        i = init_ctx(ctx);
        if (0 == i)
        {
                printf("ctx success!\n");
        }
        ssl = SSL_new(ctx);
        CHK_NULL(ssl);
        i = sslConnect(ctx,ssl);
        if (i)
        {
                printf("ssl connect success!\n");
        }
        else
        {
                printf("ssl error!\n");
        }
        i = readFromSSLSocket(ssl,&buf_read,10240,10240);
        if (i > 0)
        {
                printf("size = %d ssl_read:%s\n",i,buf_read);
        }
        else
        {
                printf("SSL_read error!\n");
        }
        ssl_error(ctx,ssl);
        return 0;
}
int init_ctx(SSL_CTX *ctx)
{
        int err;
        char *server_name,*pathname,*client_name,*client_key;
        client_name = "eeee.crt";
        client_key = "eeee.pem";
        err = setClientVerification(ctx);
        CHK_SSL(err);
        err = setCertFile(ctx,client_name,SSL_FILETYPE_PEM);
        CHK_SSL(err);
        err = setPrivateKey(ctx,client_key,SSL_FILETYPE_PEM);
        CHK_SSL(err);
        err = checkPrivateKey(ctx);
        CHK_SSL(err);
        return 0;
}
int sslConnect(SSL_CTX *ctx,SSL *ssl)
{
        int sock,port;
        char *host = "sheep.cnnic.cn";
        port = 4121;
        sock = openSocket(host,port);
        return handShake(ssl,sock);
}
int writeToSSLSocket(SSL *ssl,char *request,int length)
{
        int bytesWritten;
        bytesWritten = SSL_write(ssl,request,length);
        return bytesWritten;
}
---------------------------------------------------------------
the Program result:
ctx success!
ssl connect success!
size = 1199 ssl_read:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<epp xmlns="urn:iana:xml:ns:epp-1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:iana:xml:ns:epp-1.0 epp-1.0.xsd">
 <greeting>
  <svID>CNNIC EPP Server</svID>
  <svDate>2014-05-09T01:19:14.0Z</svDate>
  <svcMenu>
   <version>1.0</version>
   <lang>en-US</lang>
   <contact:svc xmlns:contact="urn:iana:xml:ns:contact-1.0" xsi:schemaLocation="urn:iana:xml:ns:contact-1.0 contact-1.0.xsd"/>
   <host:svc xmlns:host="urn:iana:xml:ns:host-1.0" xsi:schemaLocation="urn:iana:xml:ns:host-1.0 host-1.0.xsd"/>
   <domain:svc xmlns:domain="urn:iana:xml:ns:domain-1.0" xsi:schemaLocation="urn:iana:xml:ns:domain-1.0 domain-1.0.xsd"/>
   <unspec>
    <cnContact:svc xmlns:cnContact="urn:iana:xml:ns:cntld:contact-1.0" xsi:schemaLocation="urn:iana:xml:ns:cntld:contact-1.0 cntld-contact-1.0.xsd"/>
    <cnDomain:svc xmlns:cnDomain="urn:iana:xml:ns:cntld:domain-1.0" xsi:schemaLocation="urn:iana:xml:ns:cntld:domain-1.0 cntld-domain-1.0.xsd"/>
    <cnHost:svc xmlns:cnHost="urn:iana:xml:ns:cntld:host-1.0" xsi:schemaLocation="urn:iana:xml:ns:cntld:host-1.0 cntld-host-1.0.xsd"/>
   </unspec>
  </svcMenu>
 </greeting>
</epp>

[gopherbot]

Comment 4 by webluoye:

Connect to sheep.cnnic.cn:4121 needs IP authorization, so you might fail from your end

[agl]

Comment 5:

If I can't test the server then I'll need a tcpdump (i.e. tcpdump -i eth0 -s 9999 -w
/tmp/dump) to see what's going on.

[agl]

Comment 6:

Status changed to WaitingForReply.

[gopherbot]

Comment 7 by webluoye:

commad
tcpdump host 218.241.106.8 -i em1 -s 9999 -w /tmp/dump

Attachments:

1. dump (7102 bytes)

[agl]

Comment 8:

Wireshark can't decode that because the reply handshake is truncated by the alert from
the client. But the issue is likely because of the huge handshake from the server
(nearly 20KB). The Go code should be handling that, but I can imagine that it might not.
I'll take a look at writing a test for that and seeing if I can shake out a bug.

Owner changed to @agl.

Status changed to Accepted.

[gopherbot]

Comment 9 by webluoye:

use "go version go1.3.1 linux/amd64" 
error info
connection to server sheep.cnnic.cn Handshake false tls: first record does not look like
a TLS handshake