#undef NON_MAIN
#undef USE_SOCKETS
#include <openssl/err.h>
+#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/ssl.h>
#include "s_apps.h"
+#define COOKIE_SECRET_LENGTH 16
+
int verify_depth=0;
+int verify_quiet=0;
int verify_error=X509_V_OK;
int verify_return_error=0;
+unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
+int cookie_initialized=0;
int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
{
err= X509_STORE_CTX_get_error(ctx);
depth= X509_STORE_CTX_get_error_depth(ctx);
- BIO_printf(bio_err,"depth=%d ",depth);
- if (err_cert)
+ if (!verify_quiet || !ok)
{
- X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
+ BIO_printf(bio_err,"depth=%d ",depth);
+ if (err_cert)
+ {
+ X509_NAME_print_ex(bio_err,
+ X509_get_subject_name(err_cert),
0, XN_FLAG_ONELINE);
- BIO_puts(bio_err, "\n");
+ BIO_puts(bio_err, "\n");
+ }
+ else
+ BIO_puts(bio_err, "<no cert>\n");
}
- else
- BIO_puts(bio_err, "<no cert>\n");
if (!ok)
{
BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
BIO_printf(bio_err,"\n");
break;
case X509_V_ERR_NO_EXPLICIT_POLICY:
- policies_print(bio_err, ctx);
+ if (!verify_quiet)
+ policies_print(bio_err, ctx);
break;
}
- if (err == X509_V_OK && ok == 2)
+ if (err == X509_V_OK && ok == 2 && !verify_quiet)
policies_print(bio_err, ctx);
-
- BIO_printf(bio_err,"verify return:%d\n",ok);
+ if (ok && !verify_quiet)
+ BIO_printf(bio_err,"verify return:%d\n",ok);
return(ok);
}
/* If we are using DSA, we can copy the parameters from
* the private key */
-
-
+
+
/* Now we know that a key and cert have been set against
* the SSL context */
if (!SSL_CTX_check_private_key(ctx))
return(1);
}
-int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
+int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
+ STACK_OF(X509) *chain, int build_chain)
{
- if (cert == NULL)
+ int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
+ if (cert == NULL)
return 1;
if (SSL_CTX_use_certificate(ctx,cert) <= 0)
{
ERR_print_errors(bio_err);
return 0;
}
- if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
+
+ if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
+ {
+ BIO_printf(bio_err,"error setting private key\n");
+ ERR_print_errors(bio_err);
+ return 0;
+ }
+
+ /* Now we know that a key and cert have been set against
+ * the SSL context */
+ if (!SSL_CTX_check_private_key(ctx))
+ {
+ BIO_printf(bio_err,"Private key does not match the certificate public key\n");
+ return 0;
+ }
+ if (chain && !SSL_CTX_set1_chain(ctx, chain))
{
- BIO_printf(bio_err,"error setting private key\n");
+ BIO_printf(bio_err,"error setting certificate chain\n");
ERR_print_errors(bio_err);
return 0;
}
-
-
- /* Now we know that a key and cert have been set against
- * the SSL context */
- if (!SSL_CTX_check_private_key(ctx))
+ if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags))
{
- BIO_printf(bio_err,"Private key does not match the certificate public key\n");
+ BIO_printf(bio_err,"error building certificate chain\n");
+ ERR_print_errors(bio_err);
return 0;
}
return 1;
}
+static void ssl_print_client_cert_types(BIO *bio, SSL *s)
+ {
+ const unsigned char *p;
+ int i;
+ int cert_type_num = SSL_get0_certificate_types(s, &p);
+ if (!cert_type_num)
+ return;
+ BIO_puts(bio, "Client Certificate Types: ");
+ for (i = 0; i < cert_type_num; i++)
+ {
+ unsigned char cert_type = p[i];
+ char *cname;
+ switch(cert_type)
+ {
+ case TLS_CT_RSA_SIGN:
+ cname = "RSA sign";
+ break;
+
+ case TLS_CT_DSS_SIGN:
+ cname = "DSA sign";
+ break;
+
+ case TLS_CT_RSA_FIXED_DH:
+ cname = "RSA fixed DH";
+ break;
+
+ case TLS_CT_DSS_FIXED_DH:
+ cname = "DSS fixed DH";
+ break;
+
+ case TLS_CT_ECDSA_SIGN:
+ cname = "ECDSA sign";
+ break;
+
+ case TLS_CT_RSA_FIXED_ECDH:
+ cname = "RSA fixed ECDH";
+ break;
+
+ case TLS_CT_ECDSA_FIXED_ECDH:
+ cname = "ECDSA fixed ECDH";
+ break;
+
+ case TLS_CT_GOST94_SIGN:
+ cname = "GOST94 Sign";
+ break;
+
+ case TLS_CT_GOST01_SIGN:
+ cname = "GOST01 Sign";
+ break;
+
+ default:
+ cname = NULL;
+ }
+
+ if (i)
+ BIO_puts(bio, ", ");
+
+ if (cname)
+ BIO_puts(bio, cname);
+ else
+ BIO_printf(bio, "UNKNOWN (%d),", cert_type);
+ }
+ BIO_puts(bio, "\n");
+ }
+
+static int do_print_sigalgs(BIO *out, SSL *s, int shared)
+ {
+ int i, nsig, client;
+ client = SSL_is_server(s) ? 0 : 1;
+ if (shared)
+ nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL,
+ NULL, NULL);
+ else
+ nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
+ if (nsig == 0)
+ return 1;
+
+ if (shared)
+ BIO_puts(out, "Shared ");
+
+ if (client)
+ BIO_puts(out, "Requested ");
+ BIO_puts(out, "Signature Algorithms: ");
+ for (i = 0; i < nsig; i++)
+ {
+ int hash_nid, sign_nid;
+ unsigned char rhash, rsign;
+ const char *sstr = NULL;
+ if (shared)
+ SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
+ &rsign, &rhash);
+ else
+ SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
+ &rsign, &rhash);
+ if (i)
+ BIO_puts(out, ":");
+ if (sign_nid == EVP_PKEY_RSA)
+ sstr = "RSA";
+ else if(sign_nid == EVP_PKEY_DSA)
+ sstr = "DSA";
+ else if(sign_nid == EVP_PKEY_EC)
+ sstr = "ECDSA";
+ if (sstr)
+ BIO_printf(out,"%s+", sstr);
+ else
+ BIO_printf(out,"0x%02X+", (int)rsign);
+ if (hash_nid != NID_undef)
+ BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
+ else
+ BIO_printf(out,"0x%02X", (int)rhash);
+ }
+ BIO_puts(out, "\n");
+ return 1;
+ }
+
+int ssl_print_sigalgs(BIO *out, SSL *s)
+ {
+ int mdnid;
+ if (!SSL_is_server(s))
+ ssl_print_client_cert_types(out, s);
+ do_print_sigalgs(out, s, 0);
+ do_print_sigalgs(out, s, 1);
+ if (SSL_get_peer_signature_nid(s, &mdnid))
+ BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
+ return 1;
+ }
+#ifndef OPENSSL_NO_EC
+int ssl_print_point_formats(BIO *out, SSL *s)
+ {
+ int i, nformats;
+ const char *pformats;
+ nformats = SSL_get0_ec_point_formats(s, &pformats);
+ if (nformats <= 0)
+ return 1;
+ BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
+ for (i = 0; i < nformats; i++, pformats++)
+ {
+ if (i)
+ BIO_puts(out, ":");
+ switch(*pformats)
+ {
+ case TLSEXT_ECPOINTFORMAT_uncompressed:
+ BIO_puts(out, "uncompressed");
+ break;
+
+ case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
+ BIO_puts(out, "ansiX962_compressed_prime");
+ break;
+
+ case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
+ BIO_puts(out, "ansiX962_compressed_char2");
+ break;
+
+ default:
+ BIO_printf(out, "unknown(%d)", (int)*pformats);
+ break;
+
+ }
+ }
+ if (nformats <= 0)
+ BIO_puts(out, "NONE");
+ BIO_puts(out, "\n");
+ return 1;
+ }
+
+int ssl_print_curves(BIO *out, SSL *s, int noshared)
+ {
+ int i, ncurves, *curves, nid;
+ const char *cname;
+ ncurves = SSL_get1_curves(s, NULL);
+ if (ncurves <= 0)
+ return 1;
+ curves = OPENSSL_malloc(ncurves * sizeof(int));
+ SSL_get1_curves(s, curves);
+
+ BIO_puts(out, "Supported Elliptic Curves: ");
+ for (i = 0; i < ncurves; i++)
+ {
+ if (i)
+ BIO_puts(out, ":");
+ nid = curves[i];
+ /* If unrecognised print out hex version */
+ if (nid & TLSEXT_nid_unknown)
+ BIO_printf(out, "0x%04X", nid & 0xFFFF);
+ else
+ {
+ /* Use NIST name for curve if it exists */
+ cname = EC_curve_nid2nist(nid);
+ if (!cname)
+ cname = OBJ_nid2sn(nid);
+ BIO_printf(out, "%s", cname);
+ }
+ }
+ if (ncurves == 0)
+ BIO_puts(out, "NONE");
+ OPENSSL_free(curves);
+ if (noshared)
+ {
+ BIO_puts(out, "\n");
+ return 1;
+ }
+ BIO_puts(out, "\nShared Elliptic curves: ");
+ ncurves = SSL_get_shared_curve(s, -1);
+ for (i = 0; i < ncurves; i++)
+ {
+ if (i)
+ BIO_puts(out, ":");
+ nid = SSL_get_shared_curve(s, i);
+ cname = EC_curve_nid2nist(nid);
+ if (!cname)
+ cname = OBJ_nid2sn(nid);
+ BIO_printf(out, "%s", cname);
+ }
+ if (ncurves == 0)
+ BIO_puts(out, "NONE");
+ BIO_puts(out, "\n");
+ return 1;
+ }
+#endif
+int ssl_print_tmp_key(BIO *out, SSL *s)
+ {
+ EVP_PKEY *key;
+ if (!SSL_get_server_tmp_key(s, &key))
+ return 1;
+ BIO_puts(out, "Server Temp Key: ");
+ switch (EVP_PKEY_id(key))
+ {
+ case EVP_PKEY_RSA:
+ BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
+ break;
+
+ case EVP_PKEY_DH:
+ BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
+ break;
+#ifndef OPENSSL_NO_ECDH
+ case EVP_PKEY_EC:
+ {
+ EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
+ int nid;
+ const char *cname;
+ nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
+ EC_KEY_free(ec);
+ cname = EC_curve_nid2nist(nid);
+ if (!cname)
+ cname = OBJ_nid2sn(nid);
+ BIO_printf(out, "ECDH, %s, %d bits\n",
+ cname, EVP_PKEY_bits(key));
+ }
+#endif
+ }
+ EVP_PKEY_free(key);
+ return 1;
+ }
+
+
long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
int argi, long argl, long ret)
{
case TLS1_VERSION:
str_version = "TLS 1.0 ";
break;
+ case TLS1_1_VERSION:
+ str_version = "TLS 1.1 ";
+ break;
+ case TLS1_2_VERSION:
+ str_version = "TLS 1.2 ";
+ break;
case DTLS1_VERSION:
str_version = "DTLS 1.0 ";
break;
if (version == SSL3_VERSION ||
version == TLS1_VERSION ||
+ version == TLS1_1_VERSION ||
+ version == TLS1_2_VERSION ||
version == DTLS1_VERSION ||
version == DTLS1_BAD_VER)
{
case 114:
str_details2 = " bad_certificate_hash_value";
break;
+ case 115:
+ str_details2 = " unknown_psk_identity";
+ break;
}
}
}
}
}
}
+
+#ifndef OPENSSL_NO_HEARTBEATS
+ if (content_type == 24) /* Heartbeat */
+ {
+ str_details1 = ", Heartbeat";
+
+ if (len > 0)
+ {
+ switch (((const unsigned char*)buf)[0])
+ {
+ case 1:
+ str_details1 = ", HeartbeatRequest";
+ break;
+ case 2:
+ str_details1 = ", HeartbeatResponse";
+ break;
+ }
+ }
+ }
+#endif
}
BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
extname = "status request";
break;
+ case TLSEXT_TYPE_user_mapping:
+ extname = "user mapping";
+ break;
+
+ case TLSEXT_TYPE_client_authz:
+ extname = "client authz";
+ break;
+
+ case TLSEXT_TYPE_server_authz:
+ extname = "server authz";
+ break;
+
+ case TLSEXT_TYPE_cert_type:
+ extname = "cert type";
+ break;
+
case TLSEXT_TYPE_elliptic_curves:
extname = "elliptic curves";
break;
extname = "EC point formats";
break;
+ case TLSEXT_TYPE_srp:
+ extname = "SRP";
+ break;
+
+ case TLSEXT_TYPE_signature_algorithms:
+ extname = "signature algorithms";
+ break;
+
+ case TLSEXT_TYPE_use_srtp:
+ extname = "use SRTP";
+ break;
+
+ case TLSEXT_TYPE_heartbeat:
+ extname = "heartbeat";
+ break;
+
case TLSEXT_TYPE_session_ticket:
- extname = "server ticket";
+ extname = "session ticket";
+ break;
+
+ case TLSEXT_TYPE_renegotiate:
+ extname = "renegotiation info";
break;
#ifdef TLSEXT_TYPE_opaque_prf_input
extname = "opaque PRF input";
break;
#endif
+#ifdef TLSEXT_TYPE_next_proto_neg
+ case TLSEXT_TYPE_next_proto_neg:
+ extname = "next protocol";
+ break;
+#endif
+
+ case TLSEXT_TYPE_padding:
+ extname = "TLS padding";
+ break;
default:
extname = "unknown";
BIO_dump(bio, (char *)data, len);
(void)BIO_flush(bio);
}
+
+int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
+ {
+ unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+ unsigned int length, resultlength;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in s4;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_in6 s6;
+#endif
+ } peer;
+
+ /* Initialize a random secret */
+ if (!cookie_initialized)
+ {
+ if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
+ {
+ BIO_printf(bio_err,"error setting random cookie secret\n");
+ return 0;
+ }
+ cookie_initialized = 1;
+ }
+
+ /* Read peer information */
+ (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+ /* Create buffer with peer's address and port */
+ length = 0;
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ length += sizeof(struct in_addr);
+ length += sizeof(peer.s4.sin_port);
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ length += sizeof(struct in6_addr);
+ length += sizeof(peer.s6.sin6_port);
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+ buffer = OPENSSL_malloc(length);
+
+ if (buffer == NULL)
+ {
+ BIO_printf(bio_err,"out of memory\n");
+ return 0;
+ }
+
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ memcpy(buffer,
+ &peer.s4.sin_port,
+ sizeof(peer.s4.sin_port));
+ memcpy(buffer + sizeof(peer.s4.sin_port),
+ &peer.s4.sin_addr,
+ sizeof(struct in_addr));
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ memcpy(buffer,
+ &peer.s6.sin6_port,
+ sizeof(peer.s6.sin6_port));
+ memcpy(buffer + sizeof(peer.s6.sin6_port),
+ &peer.s6.sin6_addr,
+ sizeof(struct in6_addr));
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+
+ /* Calculate HMAC of buffer using the secret */
+ HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+ buffer, length, result, &resultlength);
+ OPENSSL_free(buffer);
+
+ memcpy(cookie, result, resultlength);
+ *cookie_len = resultlength;
+
+ return 1;
+ }
+
+int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
+ {
+ unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+ unsigned int length, resultlength;
+ union {
+ struct sockaddr sa;
+ struct sockaddr_in s4;
+#if OPENSSL_USE_IPV6
+ struct sockaddr_in6 s6;
+#endif
+ } peer;
+
+ /* If secret isn't initialized yet, the cookie can't be valid */
+ if (!cookie_initialized)
+ return 0;
+
+ /* Read peer information */
+ (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+ /* Create buffer with peer's address and port */
+ length = 0;
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ length += sizeof(struct in_addr);
+ length += sizeof(peer.s4.sin_port);
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ length += sizeof(struct in6_addr);
+ length += sizeof(peer.s6.sin6_port);
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+ buffer = OPENSSL_malloc(length);
+
+ if (buffer == NULL)
+ {
+ BIO_printf(bio_err,"out of memory\n");
+ return 0;
+ }
+
+ switch (peer.sa.sa_family)
+ {
+ case AF_INET:
+ memcpy(buffer,
+ &peer.s4.sin_port,
+ sizeof(peer.s4.sin_port));
+ memcpy(buffer + sizeof(peer.s4.sin_port),
+ &peer.s4.sin_addr,
+ sizeof(struct in_addr));
+ break;
+#if OPENSSL_USE_IPV6
+ case AF_INET6:
+ memcpy(buffer,
+ &peer.s6.sin6_port,
+ sizeof(peer.s6.sin6_port));
+ memcpy(buffer + sizeof(peer.s6.sin6_port),
+ &peer.s6.sin6_addr,
+ sizeof(struct in6_addr));
+ break;
+#endif
+ default:
+ OPENSSL_assert(0);
+ break;
+ }
+
+ /* Calculate HMAC of buffer using the secret */
+ HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+ buffer, length, result, &resultlength);
+ OPENSSL_free(buffer);
+
+ if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
+ return 1;
+
+ return 0;
+ }
+
+/* Example of extended certificate handling. Where the standard support
+ * of one certificate per algorithm is not sufficient an application
+ * can decide which certificate(s) to use at runtime based on whatever
+ * criteria it deems appropriate.
+ */
+
+/* Linked list of certificates, keys and chains */
+struct ssl_excert_st
+ {
+ int certform;
+ const char *certfile;
+ int keyform;
+ const char *keyfile;
+ const char *chainfile;
+ X509 *cert;
+ EVP_PKEY *key;
+ STACK_OF(X509) *chain;
+ int build_chain;
+ struct ssl_excert_st *next, *prev;
+ };
+
+struct chain_flags
+ {
+ int flag;
+ const char *name;
+ };
+
+struct chain_flags chain_flags_list[] =
+ {
+ {CERT_PKEY_VALID, "Overall Validity"},
+ {CERT_PKEY_SIGN, "Sign with EE key"},
+ {CERT_PKEY_EE_SIGNATURE, "EE signature"},
+ {CERT_PKEY_CA_SIGNATURE, "CA signature"},
+ {CERT_PKEY_EE_PARAM, "EE key parameters"},
+ {CERT_PKEY_CA_PARAM, "CA key parameters"},
+ {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
+ {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
+ {CERT_PKEY_CERT_TYPE, "Certificate Type"},
+ {0, NULL}
+ };
+
+
+static void print_chain_flags(BIO *out, int flags)
+ {
+ struct chain_flags *ctmp = chain_flags_list;
+ while(ctmp->name)
+ {
+ BIO_printf(out, "\t%s: %s\n", ctmp->name,
+ flags & ctmp->flag ? "OK" : "NOT OK");
+ ctmp++;
+ }
+ }
+
+/* Very basic selection callback: just use any certificate chain
+ * reported as valid. More sophisticated could prioritise according
+ * to local policy.
+ */
+static int set_cert_cb(SSL *ssl, void *arg)
+ {
+ int i, rv;
+ SSL_EXCERT *exc = arg;
+#ifdef CERT_CB_TEST_RETRY
+ static int retry_cnt;
+ if (retry_cnt < 5)
+ {
+ retry_cnt++;
+ fprintf(stderr, "Certificate callback retry test: count %d\n",
+ retry_cnt);
+ return -1;
+ }
+#endif
+ SSL_certs_clear(ssl);
+
+ if (!exc)
+ return 1;
+
+ /* Go to end of list and traverse backwards since we prepend
+ * newer entries this retains the original order.
+ */
+ while (exc->next)
+ exc = exc->next;
+
+ i = 0;
+
+ while(exc)
+ {
+ i++;
+ rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
+ BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
+ X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
+ XN_FLAG_ONELINE);
+ BIO_puts(bio_err, "\n");
+
+ print_chain_flags(bio_err, rv);
+ if (rv & CERT_PKEY_VALID)
+ {
+ SSL_use_certificate(ssl, exc->cert);
+ SSL_use_PrivateKey(ssl, exc->key);
+ /* NB: we wouldn't normally do this as it is
+ * not efficient building chains on each connection
+ * better to cache the chain in advance.
+ */
+ if (exc->build_chain)
+ {
+ if (!SSL_build_cert_chain(ssl, 0))
+ return 0;
+ }
+ else if (exc->chain)
+ SSL_set1_chain(ssl, exc->chain);
+ }
+ exc = exc->prev;
+ }
+ return 1;
+ }
+
+void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
+ {
+ SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
+ }
+
+static int ssl_excert_prepend(SSL_EXCERT **pexc)
+ {
+ SSL_EXCERT *exc;
+ exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
+ if (!exc)
+ return 0;
+ exc->certfile = NULL;
+ exc->keyfile = NULL;
+ exc->chainfile = NULL;
+ exc->cert = NULL;
+ exc->key = NULL;
+ exc->chain = NULL;
+ exc->prev = NULL;
+ exc->build_chain = 0;
+
+ exc->next = *pexc;
+ *pexc = exc;
+
+ if (exc->next)
+ {
+ exc->certform = exc->next->certform;
+ exc->keyform = exc->next->keyform;
+ exc->next->prev = exc;
+ }
+ else
+ {
+ exc->certform = FORMAT_PEM;
+ exc->keyform = FORMAT_PEM;
+ }
+ return 1;
+
+ }
+
+void ssl_excert_free(SSL_EXCERT *exc)
+ {
+ SSL_EXCERT *curr;
+ while (exc)
+ {
+ if (exc->cert)
+ X509_free(exc->cert);
+ if (exc->key)
+ EVP_PKEY_free(exc->key);
+ if (exc->chain)
+ sk_X509_pop_free(exc->chain, X509_free);
+ curr = exc;
+ exc = exc->next;
+ OPENSSL_free(curr);
+ }
+ }
+
+int load_excert(SSL_EXCERT **pexc, BIO *err)
+ {
+ SSL_EXCERT *exc = *pexc;
+ if (!exc)
+ return 1;
+ /* If nothing in list, free and set to NULL */
+ if (!exc->certfile && !exc->next)
+ {
+ ssl_excert_free(exc);
+ *pexc = NULL;
+ return 1;
+ }
+ for(; exc; exc=exc->next)
+ {
+ if (!exc->certfile)
+ {
+ BIO_printf(err, "Missing filename\n");
+ return 0;
+ }
+ exc->cert = load_cert(err, exc->certfile, exc->certform,
+ NULL, NULL, "Server Certificate");
+ if (!exc->cert)
+ return 0;
+ if (exc->keyfile)
+ exc->keyfile = exc->certfile;
+ exc->key = load_key(err, exc->certfile, exc->certform, 0,
+ NULL, NULL, "Server Certificate");
+ if (!exc->key)
+ return 0;
+ if (exc->chainfile)
+ {
+ exc->chain = load_certs(err,
+ exc->chainfile, FORMAT_PEM,
+ NULL, NULL,
+ "Server Chain");
+ if (!exc->chainfile)
+ return 0;
+ }
+ }
+ return 1;
+ }
+
+
+int args_excert(char ***pargs, int *pargc,
+ int *badarg, BIO *err, SSL_EXCERT **pexc)
+ {
+ char *arg = **pargs, *argn = (*pargs)[1];
+ SSL_EXCERT *exc = *pexc;
+ int narg = 2;
+ if (!exc)
+ {
+ if (ssl_excert_prepend(&exc))
+ *pexc = exc;
+ else
+ {
+ BIO_printf(err, "Error initialising xcert\n");
+ *badarg = 1;
+ goto err;
+ }
+ }
+ if (strcmp(arg, "-xcert") == 0)
+ {
+ if (!argn)
+ {
+ *badarg = 1;
+ return 1;
+ }
+ if (exc->certfile && !ssl_excert_prepend(&exc))
+ {
+ BIO_printf(err, "Error adding xcert\n");
+ *badarg = 1;
+ goto err;
+ }
+ exc->certfile = argn;
+ }
+ else if (strcmp(arg,"-xkey") == 0)
+ {
+ if (!argn)
+ {
+ *badarg = 1;
+ return 1;
+ }
+ if (exc->keyfile)
+ {
+ BIO_printf(err, "Key already specified\n");
+ *badarg = 1;
+ return 1;
+ }
+ exc->keyfile = argn;
+ }
+ else if (strcmp(arg,"-xchain") == 0)
+ {
+ if (!argn)
+ {
+ *badarg = 1;
+ return 1;
+ }
+ if (exc->chainfile)
+ {
+ BIO_printf(err, "Chain already specified\n");
+ *badarg = 1;
+ return 1;
+ }
+ exc->chainfile = argn;
+ }
+ else if (strcmp(arg,"-xchain_build") == 0)
+ {
+ narg = 1;
+ exc->build_chain = 1;
+ }
+ else if (strcmp(arg,"-xcertform") == 0)
+ {
+ if (!argn)
+ {
+ *badarg = 1;
+ goto err;
+ }
+ exc->certform = str2fmt(argn);
+ }
+ else if (strcmp(arg,"-xkeyform") == 0)
+ {
+ if (!argn)
+ {
+ *badarg = 1;
+ goto err;
+ }
+ exc->keyform = str2fmt(argn);
+ }
+ else
+ return 0;
+
+ (*pargs) += narg;
+
+ if (pargc)
+ *pargc -= narg;
+
+ *pexc = exc;
+
+ return 1;
+
+ err:
+ ERR_print_errors(err);
+ ssl_excert_free(exc);
+ *pexc = NULL;
+ return 1;
+ }
+
+static void print_raw_cipherlist(BIO *bio, SSL *s)
+ {
+ const unsigned char *rlist;
+ static const unsigned char scsv_id[] = {0, 0, 0xFF};
+ size_t i, rlistlen, num;
+ if (!SSL_is_server(s))
+ return;
+ num = SSL_get0_raw_cipherlist(s, NULL);
+ rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
+ BIO_puts(bio, "Client cipher list: ");
+ for (i = 0; i < rlistlen; i += num, rlist += num)
+ {
+ const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
+ if (i)
+ BIO_puts(bio, ":");
+ if (c)
+ BIO_puts(bio, SSL_CIPHER_get_name(c));
+ else if (!memcmp(rlist, scsv_id - num + 3, num))
+ BIO_puts(bio, "SCSV");
+ else
+ {
+ size_t j;
+ BIO_puts(bio, "0x");
+ for (j = 0; j < num; j++)
+ BIO_printf(bio, "%02X", rlist[j]);
+ }
+ }
+ BIO_puts(bio, "\n");
+ }
+
+
+void print_ssl_summary(BIO *bio, SSL *s)
+ {
+ const SSL_CIPHER *c;
+ X509 *peer;
+ /*const char *pnam = SSL_is_server(s) ? "client" : "server";*/
+ BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
+ print_raw_cipherlist(bio, s);
+ c = SSL_get_current_cipher(s);
+ BIO_printf(bio,"Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
+ do_print_sigalgs(bio, s, 0);
+ peer = SSL_get_peer_certificate(s);
+ if (peer)
+ {
+ int nid;
+ BIO_puts(bio, "Peer certificate: ");
+ X509_NAME_print_ex(bio, X509_get_subject_name(peer),
+ 0, XN_FLAG_ONELINE);
+ BIO_puts(bio, "\n");
+ if (SSL_get_peer_signature_nid(s, &nid))
+ BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
+ }
+ else
+ BIO_puts(bio, "No peer certificate\n");
+ if (peer)
+ X509_free(peer);
+#ifndef OPENSSL_NO_EC
+ ssl_print_point_formats(bio, s);
+ if (SSL_is_server(s))
+ ssl_print_curves(bio, s, 1);
+ else
+ ssl_print_tmp_key(bio, s);
+#else
+ if (!SSL_is_server(s))
+ ssl_print_tmp_key(bio, s);
+#endif
+ }
+
+int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
+ int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
+ {
+ char *arg = **pargs, *argn = (*pargs)[1];
+ int rv;
+
+ /* Attempt to run SSL configuration command */
+ rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
+ /* If parameter not recognised just return */
+ if (rv == 0)
+ return 0;
+ /* see if missing argument error */
+ if (rv == -3)
+ {
+ BIO_printf(err, "%s needs an argument\n", arg);
+ *badarg = 1;
+ goto end;
+ }
+ /* Check for some other error */
+ if (rv < 0)
+ {
+ BIO_printf(err, "Error with command: \"%s %s\"\n",
+ arg, argn ? argn : "");
+ *badarg = 1;
+ goto end;
+ }
+ /* Store command and argument */
+ /* If only one argument processed store value as NULL */
+ if (rv == 1)
+ argn = NULL;
+ if (!*pstr)
+ *pstr = sk_OPENSSL_STRING_new_null();
+ if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
+ !sk_OPENSSL_STRING_push(*pstr, argn))
+ {
+ BIO_puts(err, "Memory allocation failure\n");
+ goto end;
+ }
+
+ end:
+ if (*badarg)
+ ERR_print_errors(err);
+
+ return 1;
+ }
+
+int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
+ STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
+ {
+ int i;
+ SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+ for (i = 0; i < sk_OPENSSL_STRING_num(str); i+= 2)
+ {
+ const char *param = sk_OPENSSL_STRING_value(str, i);
+ const char *value = sk_OPENSSL_STRING_value(str, i + 1);
+ /* If no_ecdhe or named curve already specified don't need
+ * a default.
+ */
+ if (!no_ecdhe && !strcmp(param, "-named_curve"))
+ no_ecdhe = 1;
+#ifndef OPENSSL_NO_JPAKE
+ if (!no_jpake && !strcmp(param, "-cipher"))
+ {
+ BIO_puts(err, "JPAKE sets cipher to PSK\n");
+ return 0;
+ }
+#endif
+ if (SSL_CONF_cmd(cctx, param, value) <= 0)
+ {
+ BIO_printf(err, "Error with command: \"%s %s\"\n",
+ param, value ? value : "");
+ ERR_print_errors(err);
+ return 0;
+ }
+ }
+ /* This is a special case to keep existing s_server functionality:
+ * if we don't have any curve specified *and* we haven't disabled
+ * ECDHE then use P-256.
+ */
+ if (!no_ecdhe)
+ {
+ if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0)
+ {
+ BIO_puts(err, "Error setting EC curve\n");
+ ERR_print_errors(err);
+ return 0;
+ }
+ }
+#ifndef OPENSSL_NO_JPAKE
+ if (!no_jpake)
+ {
+ if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0)
+ {
+ BIO_puts(err, "Error setting cipher to PSK\n");
+ ERR_print_errors(err);
+ return 0;
+ }
+ }
+#endif
+ if (!SSL_CONF_CTX_finish(cctx))
+ {
+ BIO_puts(err, "Error finishing context\n");
+ ERR_print_errors(err);
+ return 0;
+ }
+ return 1;
+ }
+
+static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
+ {
+ X509_CRL *crl;
+ int i;
+ for (i = 0; i < sk_X509_CRL_num(crls); i++)
+ {
+ crl = sk_X509_CRL_value(crls, i);
+ X509_STORE_add_crl(st, crl);
+ }
+ return 1;
+ }
+
+int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
+ {
+ X509_STORE *st;
+ st = SSL_CTX_get_cert_store(ctx);
+ add_crls_store(st, crls);
+ if (crl_download)
+ store_setup_crl_download(st);
+ return 1;
+ }
+
+int ssl_load_stores(SSL_CTX *ctx,
+ const char *vfyCApath, const char *vfyCAfile,
+ const char *chCApath, const char *chCAfile,
+ STACK_OF(X509_CRL) *crls, int crl_download)
+ {
+ X509_STORE *vfy = NULL, *ch = NULL;
+ int rv = 0;
+ if (vfyCApath || vfyCAfile)
+ {
+ vfy = X509_STORE_new();
+ if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
+ goto err;
+ add_crls_store(vfy, crls);
+ SSL_CTX_set1_verify_cert_store(ctx, vfy);
+ if (crl_download)
+ store_setup_crl_download(vfy);
+ }
+ if (chCApath || chCAfile)
+ {
+ ch = X509_STORE_new();
+ if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
+ goto err;
+ SSL_CTX_set1_chain_cert_store(ctx, ch);
+ }
+ rv = 1;
+ err:
+ if (vfy)
+ X509_STORE_free(vfy);
+ if (ch)
+ X509_STORE_free(ch);
+ return rv;
+ }