ssl-42-ciphers.c   [plain text]

#include <stdbool.h>
#include <pthread.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>

#include <CoreFoundation/CoreFoundation.h>

#include <AssertMacros.h>
#include <Security/SecureTransportPriv.h> /* SSLSetOption */
#include <Security/SecureTransport.h>
#include <Security/SecPolicy.h>
#include <Security/SecTrust.h>
#include <Security/SecIdentity.h>
#include <Security/SecIdentityPriv.h>
#include <Security/SecCertificatePriv.h>
#include <Security/SecKeyPriv.h>
#include <Security/SecItem.h>
#include <Security/SecRandom.h>

#include <utilities/array_size.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <stdlib.h>
#include <mach/mach_time.h>

#if TARGET_OS_IPHONE
#include <Security/SecRSAKey.h>
#endif

#include "ssl_regressions.h"
#include "ssl-utils.h"

/*
    SSL CipherSuite tests

    Below are all the ciphers that are individually tested.  The first element
    is the SecureTransport/RFC name; the second is what openssl calls it, which
    can be looked up in ciphers(1).

    All SSL_DH_* and TLS_DH_* are disabled because neither openssl nor
    securetranport support them:
    SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA, SSL_DH_DSS_WITH_DES_CBC_SHA,
    SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA, SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA,
    SSL_DH_RSA_WITH_DES_CBC_SHA, SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA,
    TLS_DH_DSS_WITH_AES_128_CBC_SHA, TLS_DH_RSA_WITH_AES_128_CBC_SHA,
    TLS_DH_DSS_WITH_AES_256_CBC_SHA, TLS_DH_RSA_WITH_AES_256_CBC_SHA,

    DSS is unimplemented by securetransport on the phone:
    SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA, SSL_DHE_DSS_WITH_DES_CBC_SHA,
    SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
    TLS_DHE_DSS_WITH_AES_256_CBC_SHA,

    SSLv2 ciphersuites disabled by securetransport on phone:
    SSL_RSA_WITH_RC2_CBC_MD5, SSL_RSA_WITH_IDEA_CBC_MD5,
    SSL_RSA_WITH_DES_CBC_MD5, SSL_RSA_WITH_3DES_EDE_CBC_MD5,

    SSLv3 ciphersuites disabled by securetransport on phone:
    SSL_RSA_WITH_IDEA_CBC_SHA, SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5

    Export ciphersuites disabled on iOS 5.0:
    SSL_RSA_EXPORT_WITH_RC4_40_MD5, SSL_RSA_EXPORT_WITH_DES40_CBC_SHA,
    SSL_RSA_WITH_DES_CBC_SHA, SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,
    SSL_DHE_RSA_WITH_DES_CBC_SHA, SSL_DH_anon_EXPORT_WITH_RC4_40_MD5,
    SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA, SSL_DH_anon_WITH_DES_CBC_SHA

*/

typedef struct _CipherSuiteName {
        SSLCipherSuite cipher;
        const char *name;
        bool dh_anonymous;
} CipherSuiteName;

#define CIPHER(cipher, dh_anonymous) { cipher, #cipher, dh_anonymous },

static const CipherSuiteName ciphers[] = {
    //SSL_NULL_WITH_NULL_NULL, unsupported
    CIPHER(SSL_RSA_WITH_NULL_SHA, false)
    CIPHER(SSL_RSA_WITH_NULL_MD5, false)
    CIPHER(TLS_RSA_WITH_NULL_SHA256, false)

    CIPHER(SSL_RSA_WITH_RC4_128_MD5, false)
    CIPHER(SSL_RSA_WITH_RC4_128_SHA, false)
    CIPHER(SSL_RSA_WITH_3DES_EDE_CBC_SHA, false)

    CIPHER(SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, false)
    CIPHER(SSL_DH_anon_WITH_RC4_128_MD5, true)
    CIPHER(SSL_DH_anon_WITH_3DES_EDE_CBC_SHA, true)
    CIPHER(TLS_DHE_RSA_WITH_AES_128_CBC_SHA, false)
    CIPHER(TLS_DH_anon_WITH_AES_128_CBC_SHA, true)
    CIPHER(TLS_DHE_RSA_WITH_AES_256_CBC_SHA, false)
    CIPHER(TLS_DH_anon_WITH_AES_256_CBC_SHA, true)

    CIPHER(TLS_RSA_WITH_AES_128_CBC_SHA, false)
    CIPHER(TLS_RSA_WITH_AES_256_CBC_SHA, false)


    CIPHER(TLS_PSK_WITH_AES_128_CBC_SHA, true)
    CIPHER(TLS_PSK_WITH_AES_256_CBC_SHA384, true)
    CIPHER(TLS_PSK_WITH_AES_128_CBC_SHA256, true)
    CIPHER(TLS_PSK_WITH_AES_256_CBC_SHA, true)
    CIPHER(TLS_PSK_WITH_AES_128_CBC_SHA, true)
    CIPHER(TLS_PSK_WITH_RC4_128_SHA, true)
    CIPHER(TLS_PSK_WITH_3DES_EDE_CBC_SHA, true)
    CIPHER(TLS_PSK_WITH_NULL_SHA384, true)
    CIPHER(TLS_PSK_WITH_NULL_SHA256, true)
    CIPHER(TLS_PSK_WITH_NULL_SHA, true)


#if 0
    CIPHER(TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, false)
    CIPHER(TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, false)

    CIPHER(TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, false)
    CIPHER(TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, false)

    CIPHER(TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, false)
    CIPHER(TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, false)

    CIPHER(TLS_ECDH_anon_WITH_AES_128_CBC_SHA, true)
    CIPHER(TLS_ECDH_anon_WITH_AES_256_CBC_SHA, true)

    CIPHER(TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, false)
    CIPHER(TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, false)
    CIPHER(TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, false)
    CIPHER(TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, false)
#endif

#if 0
    CIPHER(TLS_RSA_WITH_AES_256_GCM_SHA384, false)
    CIPHER(TLS_RSA_WITH_AES_128_GCM_SHA256, false)
#endif

/* Export ciphers are disabled */
#if 0
    CIPHER(SSL_RSA_EXPORT_WITH_RC4_40_MD5, false)
    CIPHER(SSL_RSA_EXPORT_WITH_DES40_CBC_SHA, false)
    CIPHER(SSL_RSA_WITH_DES_CBC_SHA,  false)
    CIPHER(SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA,  false)
    CIPHER(SSL_DHE_RSA_WITH_DES_CBC_SHA, false)
    CIPHER(SSL_DH_anon_EXPORT_WITH_RC4_40_MD5, true)
    CIPHER(SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA,  true)
    CIPHER(SSL_DH_anon_WITH_DES_CBC_SHA, true)
#endif

    { -1 }
};

static int ciphers_len = array_size(ciphers);


static int protos[]={kTLSProtocol1, kTLSProtocol11, kTLSProtocol12 };
static int nprotos = sizeof(protos)/sizeof(protos[0]);


#if 0 // currently unused
static SSLCipherSuite sslcipher_atoi(const char *name)
{
       const CipherSuiteName *a = ciphers;
       while(a->name) {
           if (0 == strcmp(a->name, name)) break;
           a++;
       }
       return a->cipher;
}

static const char * sslcipher_itoa(SSLCipherSuite num)
{
       const CipherSuiteName *a = ciphers;
       while(a->cipher >= 0) {
           if (num == a->cipher) break;
           a++;
       }
       return a->name;
}
#endif // currently unused

static unsigned char dh_param_512_bytes[] = {
  0x30, 0x46, 0x02, 0x41, 0x00, 0xdb, 0x3c, 0xfa, 0x13, 0xa6, 0xd2, 0x64,
  0xdf, 0xcc, 0x40, 0xb1, 0x21, 0xd4, 0xf2, 0xad, 0x22, 0x7f, 0xce, 0xa0,
  0xb9, 0x5b, 0x95, 0x1c, 0x2e, 0x99, 0xb0, 0x27, 0xd0, 0xed, 0xf4, 0xbd,
  0xbb, 0x36, 0x93, 0xd0, 0x9d, 0x2b, 0x32, 0xa3, 0x56, 0x53, 0xe3, 0x7b,
  0xed, 0xa1, 0x71, 0x82, 0x2e, 0x83, 0x14, 0xf9, 0xc0, 0x2f, 0x15, 0xcb,
  0xcf, 0x97, 0xab, 0x88, 0x49, 0x20, 0x28, 0x2e, 0x63, 0x02, 0x01, 0x02
};
static unsigned char *dh_param_512_der = dh_param_512_bytes;
static unsigned int dh_param_512_der_len = 72;


typedef struct {
    uint32_t session_id;
    bool is_session_resume;
    SSLContextRef st;
    bool is_server;
    bool is_dtls;
    bool client_side_auth;
    bool dh_anonymous;
    int comm;
    CFArrayRef certs;
    SSLProtocol proto;
} ssl_test_handle;

#if 0 // currently unused
static CFArrayRef SecIdentityCopySSLClientAuthenticationChain(SecIdentityRef identity)
{
   CFMutableArrayRef chain = NULL;
   SecPolicyRef policy = NULL;
   SecTrustRef trust = NULL;
   SecTrustResultType trust_result;

   do {
       policy = SecPolicyCreateSSL(false, NULL);
       if (!policy)
           break;

       SecCertificateRef cert = NULL;
       if (SecIdentityCopyCertificate(identity, &cert))
           break;

       CFArrayRef certs = CFArrayCreate(NULL, (const void **)&cert,
                 1, &kCFTypeArrayCallBacks);
       CFRelease(cert);
       if (!certs)
           break;

       if (SecTrustCreateWithCertificates(certs, policy, &trust))
           break;
       CFRelease(certs);
       CFRelease(policy);
       if (SecTrustEvaluate(trust, &trust_result))
           break;

       int i, count = SecTrustGetCertificateCount(trust);
       chain = CFArrayCreateMutable(NULL, count, &kCFTypeArrayCallBacks);
       CFArrayAppendValue(chain, identity);
       for (i = 1; i < count; i++) {
           if ((i+1 == count) && (trust_result == kSecTrustResultUnspecified))
               continue; /* skip anchor if chain is complete */
           SecCertificateRef s = SecTrustGetCertificateAtIndex(trust, i);
           CFArrayAppendValue(chain, s);
       }
   } while (0);
   if (trust)
       CFRelease(trust);
   if (policy)
       CFRelease(policy);
   return chain;
}
#endif // currently unused

// MARK: -
// MARK: SecureTransport support

#if 0
static void hexdump(const uint8_t *bytes, size_t len) {
	size_t ix;
    printf("socket write(%p, %lu)\n", bytes, len);
	for (ix = 0; ix < len; ++ix) {
        if (!(ix % 16))
            printf("\n");
		printf("%02X ", bytes[ix]);
	}
	printf("\n");
}
#else
#define hexdump(bytes, len)
#endif

static OSStatus SocketWrite(SSLConnectionRef conn, const void *data, size_t *length)
{
	size_t len = *length;
	uint8_t *ptr = (uint8_t *)data;

    do {
        ssize_t ret;
        do {
            hexdump(ptr, len);
            ret = write((int)conn, ptr, len);
        } while ((ret < 0) && (errno == EAGAIN || errno == EINTR));
        if (ret > 0) {
            len -= ret;
            ptr += ret;
        }
        else
            return -36;
    } while (len > 0);

    *length = *length - len;
    return errSecSuccess;
}

static OSStatus SocketRead(SSLConnectionRef conn, void *data, size_t *length)
{
	size_t len = *length;
	uint8_t *ptr = (uint8_t *)data;

    do {
        ssize_t ret;
        do {
            ret = read((int)conn, ptr, len);
        } while ((ret < 0) && (errno == EAGAIN || errno == EINTR));
        if (ret > 0) {
            len -= ret;
            ptr += ret;
        }
        else
            return -36;
    } while (len > 0);

    *length = *length - len;
    return errSecSuccess;
}

static unsigned char dn[] = {
  0x30, 0x5e, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
  0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a,
  0x13, 0x0a, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x49, 0x6e, 0x63, 0x2e,
  0x31, 0x26, 0x30, 0x24, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x1d, 0x41,
  0x70, 0x70, 0x6c, 0x65, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
  0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f,
  0x72, 0x69, 0x74, 0x79, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04,
  0x03, 0x13, 0x09, 0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x68, 0x6f, 0x73, 0x74
};
static unsigned int dn_len = 96;

static SSLContextRef make_ssl_ref(bool server, bool client_side_auth, bool dh_anonymous,
    bool dtls, int sock, CFArrayRef certs, SSLProtocol proto)
{
    SSLContextRef ctx = SSLCreateContext(kCFAllocatorDefault, server?kSSLServerSide:kSSLClientSide, dtls?kSSLDatagramType:kSSLStreamType);
    require(ctx, out);

    if(dtls) {
        size_t mtu;
        require_noerr(SSLSetMaxDatagramRecordSize(ctx, 400), out);
        require_noerr(SSLGetMaxDatagramRecordSize(ctx, &mtu), out);
    } else {
        require_noerr(SSLSetProtocolVersionMax(ctx, proto), out);
    }
    require_noerr(SSLSetIOFuncs(ctx,
        (SSLReadFunc)SocketRead, (SSLWriteFunc)SocketWrite), out);
    require_noerr(SSLSetConnection(ctx, (SSLConnectionRef)(intptr_t)sock), out);
    static const char *peer_domain_name = "localhost";
    require_noerr(SSLSetPeerDomainName(ctx, peer_domain_name,
        strlen(peer_domain_name)), out);


    if (!dh_anonymous) {
        if (server)
            require_noerr(SSLSetCertificate(ctx, certs), out);
        if (client_side_auth && server) {
            SSLAuthenticate auth;
            require_noerr(SSLSetClientSideAuthenticate(ctx, kAlwaysAuthenticate), out);
            require_noerr(SSLGetClientSideAuthenticate(ctx, &auth), out);
            require(auth==kAlwaysAuthenticate, out);
            require_noerr(SSLAddDistinguishedName(ctx, dn, dn_len), out);
        }
#if 0 /* Setting client certificate in advance */
        if (client_side_auth && !server)
            require_noerr(SSLSetCertificate(ctx, certs), out);
#endif
        if (client_side_auth && !server) /* enable break from SSLHandshake */
            require_noerr(SSLSetSessionOption(ctx,
                kSSLSessionOptionBreakOnCertRequested, true), out);
        require_noerr(SSLSetSessionOption(ctx,
            kSSLSessionOptionBreakOnServerAuth, true), out);
    }

    /* Tell SecureTransport to not check certs itself: it will break out of the
       handshake to let us take care of it instead. */
    require_noerr(SSLSetEnableCertVerify(ctx, false), out);

    if (server) {
        require_noerr(SSLSetDiffieHellmanParams(ctx,
            dh_param_512_der, dh_param_512_der_len), out);
    }
    else /* if client */ {
    }

    return ctx;
out:
    if (ctx)
        CFRelease(ctx);
    return NULL;
}

static void *securetransport_ssl_thread(void *arg)
{
    OSStatus ortn;
    ssl_test_handle * ssl = (ssl_test_handle *)arg;
    SSLContextRef ctx = ssl->st;
    SecTrustRef trust = NULL;
    bool got_server_auth = false, got_client_cert_req = false;

    pthread_setname_np(ssl->is_server?"server thread":"client thread");

    //uint64_t start = mach_absolute_time();
    do {
        ortn = SSLHandshake(ctx);

        if (ortn == errSSLPeerAuthCompleted)
        {
            require_string(!got_server_auth, out, "second server auth");
            require_string(!got_client_cert_req, out, "got client cert req before server auth");
            got_server_auth = true;
            require_string(!trust, out, "Got errSSLServerAuthCompleted twice?");
            /* verify peer cert chain */
            require_noerr(SSLCopyPeerTrust(ctx, &trust), out);
            SecTrustResultType trust_result = 0;
            /* this won't verify without setting up a trusted anchor */
            require_noerr(SecTrustEvaluate(trust, &trust_result), out);

            CFIndex n_certs = SecTrustGetCertificateCount(trust);
            /*fprintf(stderr, "%ld certs; trust_eval: %d\n", n_certs, trust_result); */

            CFMutableArrayRef peer_cert_array =
                CFArrayCreateMutable(NULL, n_certs, &kCFTypeArrayCallBacks);
            CFMutableArrayRef orig_peer_cert_array =
                CFArrayCreateMutableCopy(NULL, n_certs, ssl->certs);
            while (n_certs--)
                CFArrayInsertValueAtIndex(peer_cert_array, 0,
                    SecTrustGetCertificateAtIndex(trust, n_certs));

            SecIdentityRef ident =
                (SecIdentityRef)CFArrayGetValueAtIndex(orig_peer_cert_array, 0);
            SecCertificateRef peer_cert = NULL;
            require_noerr(SecIdentityCopyCertificate(ident, &peer_cert), out);
            CFArraySetValueAtIndex(orig_peer_cert_array, 0, peer_cert);
            CFRelease(peer_cert);

            require(CFEqual(orig_peer_cert_array, peer_cert_array), out);
            CFRelease(orig_peer_cert_array);
            CFRelease(peer_cert_array);

            /*
            CFStringRef cert_name = SecCertificateCopySubjectSummary(cert);
            char cert_name_buffer[1024];
            require(CFStringGetFileSystemRepresentation(cert_name,
                cert_name_buffer, sizeof(cert_name_buffer)), out);
            fprintf(stderr, "cert name: %s\n", cert_name_buffer);
            CFRelease(trust);
            */
        } else if (ortn == errSSLClientCertRequested) {
            require_string(!got_client_cert_req, out, "second client cert req");
            require_string(got_server_auth, out, "didn't get server auth first");
            got_client_cert_req = true;

            /* set client cert */
            require_string(!ssl->is_server, out, "errSSLClientCertRequested while running server");
            require_string(!ssl->dh_anonymous, out, "errSSLClientCertRequested while running anon DH");

            CFArrayRef DNs = NULL;
            require_noerr(SSLCopyDistinguishedNames	(ctx, &DNs), out);
            require(DNs, out);
            CFRelease(DNs);

            require_string(ssl->client_side_auth, out, "errSSLClientCertRequested in run not testing that");
            require_noerr(SSLSetCertificate(ctx, ssl->certs), out);
        }
    } while (ortn == errSSLWouldBlock
        || ortn == errSSLServerAuthCompleted
        || ortn == errSSLClientCertRequested);
    require_noerr_action_quiet(ortn, out,
        fprintf(stderr, "Fell out of SSLHandshake with error: %d\n", (int)ortn));

    if (!ssl->is_server && !ssl->dh_anonymous && !ssl->is_session_resume) {
        require_string(got_server_auth, out, "never got server auth");
        if (ssl->client_side_auth)
            require_string(got_client_cert_req, out, "never got client cert req");
    }
    //uint64_t elapsed = mach_absolute_time() - start;
    //fprintf(stderr, "setr elapsed: %lld\n", elapsed);

    /*
    SSLProtocol proto = kSSLProtocolUnknown;
    require_noerr_quiet(SSLGetNegotiatedProtocolVersion(ctx, &proto), out); */

    SSLCipherSuite cipherSuite;
    require_noerr_quiet(ortn = SSLGetNegotiatedCipher(ctx, &cipherSuite), out);
    //fprintf(stderr, "st negotiated %s\n", sslcipher_itoa(cipherSuite));

    if(ssl->is_dtls) {
        size_t sz;
        SSLGetDatagramWriteSize(ctx, &sz);
        //fprintf(stderr, "Max Write Size = %ld\n", sz);
    }

	Boolean	sessionWasResumed = false;
    uint8_t session_id_data[MAX_SESSION_ID_LENGTH];
    size_t session_id_length = sizeof(session_id_data);
    require_noerr_quiet(ortn = SSLGetResumableSessionInfo(ctx, &sessionWasResumed, session_id_data, &session_id_length), out);
    require_action(ssl->dh_anonymous || (ssl->is_session_resume == sessionWasResumed), out, ortn = -1);
    // if (sessionWasResumed) fprintf(stderr, "st resumed session\n");
    //hexdump(session_id_data, session_id_length);

    unsigned char ibuf[4096], obuf[4096];
    size_t len;
    if (ssl->is_server) {
        SecRandomCopyBytes(kSecRandomDefault, sizeof(obuf), obuf);
        require_noerr_quiet(ortn = SSLWrite(ctx, obuf, sizeof(obuf), &len), out);
        require_action_quiet(len == sizeof(obuf), out, ortn = -1);
    }
    require_noerr_quiet(ortn = SSLRead(ctx, ibuf, sizeof(ibuf), &len), out);
    require_action_quiet(len == sizeof(ibuf), out, ortn = -1);

    if (ssl->is_server) {
        require_noerr(memcmp(ibuf, obuf, sizeof(ibuf)), out);
    } else {
        require_noerr_quiet(ortn = SSLWrite(ctx, ibuf, sizeof(ibuf), &len), out);
        require_action_quiet(len == sizeof(ibuf), out, ortn = -1);
    }

out:
    SSLClose(ctx);
    CFRelease(ctx);
    if (trust) CFRelease(trust);
    close(ssl->comm);
    pthread_exit((void *)(intptr_t)ortn);
    return NULL;
}



static ssl_test_handle *
ssl_test_handle_create(uint32_t session_id, bool resume, bool server, bool client_side_auth, bool dh_anonymous, bool dtls,
    int comm, CFArrayRef certs, SSLProtocol proto)
{
    ssl_test_handle *handle = calloc(1, sizeof(ssl_test_handle));
    if (handle) {
        handle->session_id = session_id;
        handle->is_session_resume = resume;
        handle->is_server = server;
        handle->is_dtls = dtls;
        handle->client_side_auth = client_side_auth;
        handle->dh_anonymous = dh_anonymous;
        handle->comm = comm;
        handle->certs = certs;
        handle->proto = proto;
        handle->st = make_ssl_ref(server, client_side_auth, dh_anonymous, dtls, comm, certs, proto);
    }
    return handle;
}

static void
tests(void)
{
    pthread_t client_thread, server_thread;
    CFArrayRef server_certs = server_chain();
    ok(server_certs, "got server certs");

/* Enable this if you want to test a specific d/i/k/l combination */
#if 0
    int d=0, i=0, l=0, k=0; { {
#else
    int d,i,k,l,p;

    for (p=0; p<nprotos; p++)
    for (d=0;d<2; d++)  /* dtls or not dtls */
    for (k=0; k<2; k++)
    {
        for (i=0; ciphers[i].cipher != (SSLCipherSuite)(-1); i++)
        for (l = 0; l<2; l++) {
#endif
            SKIP:{
                //skip("Session resumption tests do not work at this point", 1, l != 1);

                int sp[2];
                if (socketpair(AF_UNIX, SOCK_STREAM, 0, sp)) exit(errno);
                fcntl(sp[0], F_SETNOSIGPIPE, 1);
                fcntl(sp[1], F_SETNOSIGPIPE, 1);

                ssl_test_handle *server, *client;

                bool client_side_auth = (k);

                uint32_t session_id = (k+1) << 16 | (i+1);
                //fprintf(stderr, "session_id: %d\n", session_id);
                server = ssl_test_handle_create(session_id, (l == 1), true /*server*/,
                    client_side_auth, ciphers[i].dh_anonymous, d,
                    sp[0], server_certs, protos[p]);
                client = ssl_test_handle_create(session_id, (l == 1), false/*client*/,
                    client_side_auth, ciphers[i].dh_anonymous, d,
                    sp[1], server_certs, protos[p]);

                require_noerr(SSLSetPeerID(server->st, &session_id, sizeof(session_id)), out);
                require_noerr(SSLSetPeerID(client->st, &session_id, sizeof(session_id)), out);

                /* set fixed cipher on client and server */
                require_noerr(SSLSetEnabledCiphers(client->st, &ciphers[i].cipher, 1), out);
                require_noerr(SSLSetEnabledCiphers(server->st, &ciphers[i].cipher, 1), out);

                require_noerr(SSLSetPSKSharedSecret(client->st, "123456789", 9), out);
                require_noerr(SSLSetPSKSharedSecret(server->st, "123456789", 9), out);


                pthread_create(&client_thread, NULL, securetransport_ssl_thread, client);
                pthread_create(&server_thread, NULL, securetransport_ssl_thread, server);

                int server_err, client_err;
                pthread_join(client_thread, (void*)&client_err);
                pthread_join(server_thread, (void*)&server_err);


                ok(!server_err && !client_err,
                   "%40s ADH:%d CSA:%d DTLS:%d RESUME:%d PROTO:%d",
                   ciphers[i].name,
                   server->dh_anonymous,
                   server->client_side_auth,
                   d, l, p);
out:
                free(client);
                free(server);

            }
        } /* all ciphers */
    } /* all configs */

    CFRelease(server_certs);
}

int ssl_42_ciphers(int argc, char *const *argv)
{

    plan_tests(2 * 2 * 2 * nprotos * (ciphers_len-1)/* client auth on/off * #configs * #ciphers */
                + 1 /*cert*/);


    tests();

    return 0;
}

/*
TODO: count errSSLWouldBlock
TODO: skip tests that don't matter: client_auth and anonymous dh
TODO: we seem to only be negotiating tls - force a round of sslv3
TODO: allow secure transport to also defer client side auth to client
TODO: make sure anonymous dh is never selected if not expicitly enabled
TODO: make sure DHE is not available if not explicitly enabled and no parameters
      are set
TODO: resumable sessions
*/