+ 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 != NULL || vfyCAfile != NULL) {
+ vfy = X509_STORE_new();
+ if (vfy == NULL)
+ goto err;
+ 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 != NULL || chCAfile != NULL) {
+ ch = X509_STORE_new();
+ if (ch == NULL)
+ goto err;
+ if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
+ goto err;
+ SSL_CTX_set1_chain_cert_store(ctx, ch);
+ }
+ rv = 1;
+ err:
+ X509_STORE_free(vfy);
+ X509_STORE_free(ch);
+ return rv;
+}
+
+/* Verbose print out of security callback */
+
+typedef struct {
+ BIO *out;
+ int verbose;
+ int (*old_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
+ void *other, void *ex);
+} security_debug_ex;
+
+static STRINT_PAIR callback_types[] = {
+ {"Supported Ciphersuite", SSL_SECOP_CIPHER_SUPPORTED},
+ {"Shared Ciphersuite", SSL_SECOP_CIPHER_SHARED},
+ {"Check Ciphersuite", SSL_SECOP_CIPHER_CHECK},
+#ifndef OPENSSL_NO_DH
+ {"Temp DH key bits", SSL_SECOP_TMP_DH},
+#endif
+ {"Supported Curve", SSL_SECOP_CURVE_SUPPORTED},
+ {"Shared Curve", SSL_SECOP_CURVE_SHARED},
+ {"Check Curve", SSL_SECOP_CURVE_CHECK},
+ {"Supported Signature Algorithm digest", SSL_SECOP_SIGALG_SUPPORTED},
+ {"Shared Signature Algorithm digest", SSL_SECOP_SIGALG_SHARED},
+ {"Check Signature Algorithm digest", SSL_SECOP_SIGALG_CHECK},
+ {"Signature Algorithm mask", SSL_SECOP_SIGALG_MASK},
+ {"Certificate chain EE key", SSL_SECOP_EE_KEY},
+ {"Certificate chain CA key", SSL_SECOP_CA_KEY},
+ {"Peer Chain EE key", SSL_SECOP_PEER_EE_KEY},
+ {"Peer Chain CA key", SSL_SECOP_PEER_CA_KEY},
+ {"Certificate chain CA digest", SSL_SECOP_CA_MD},
+ {"Peer chain CA digest", SSL_SECOP_PEER_CA_MD},
+ {"SSL compression", SSL_SECOP_COMPRESSION},
+ {"Session ticket", SSL_SECOP_TICKET},
+ {NULL}
+};
+
+static int security_callback_debug(const SSL *s, const SSL_CTX *ctx,
+ int op, int bits, int nid,
+ void *other, void *ex)
+{
+ security_debug_ex *sdb = ex;
+ int rv, show_bits = 1, cert_md = 0;
+ const char *nm;
+ rv = sdb->old_cb(s, ctx, op, bits, nid, other, ex);
+ if (rv == 1 && sdb->verbose < 2)
+ return 1;
+ BIO_puts(sdb->out, "Security callback: ");
+
+ nm = lookup(op, callback_types, NULL);
+ switch (op) {
+ case SSL_SECOP_TICKET:
+ case SSL_SECOP_COMPRESSION:
+ show_bits = 0;
+ nm = NULL;
+ break;
+ case SSL_SECOP_VERSION:
+ BIO_printf(sdb->out, "Version=%s", lookup(nid, ssl_versions, "???"));
+ show_bits = 0;
+ nm = NULL;
+ break;
+ case SSL_SECOP_CA_MD:
+ case SSL_SECOP_PEER_CA_MD:
+ cert_md = 1;
+ break;
+ }
+ if (nm != NULL)
+ BIO_printf(sdb->out, "%s=", nm);
+
+ switch (op & SSL_SECOP_OTHER_TYPE) {
+
+ case SSL_SECOP_OTHER_CIPHER:
+ BIO_puts(sdb->out, SSL_CIPHER_get_name(other));
+ break;
+
+#ifndef OPENSSL_NO_EC
+ case SSL_SECOP_OTHER_CURVE:
+ {
+ const char *cname;
+ cname = EC_curve_nid2nist(nid);
+ if (cname == NULL)
+ cname = OBJ_nid2sn(nid);
+ BIO_puts(sdb->out, cname);
+ }
+ break;
+#endif
+#ifndef OPENSSL_NO_DH
+ case SSL_SECOP_OTHER_DH:
+ {
+ DH *dh = other;
+ BIO_printf(sdb->out, "%d", DH_bits(dh));
+ break;
+ }
+#endif
+ case SSL_SECOP_OTHER_CERT:
+ {
+ if (cert_md) {
+ int sig_nid = X509_get_signature_nid(other);
+ BIO_puts(sdb->out, OBJ_nid2sn(sig_nid));
+ } else {
+ EVP_PKEY *pkey = X509_get0_pubkey(other);
+ const char *algname = "";
+ EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL,
+ &algname, EVP_PKEY_get0_asn1(pkey));
+ BIO_printf(sdb->out, "%s, bits=%d",
+ algname, EVP_PKEY_bits(pkey));
+ }
+ break;
+ }
+ case SSL_SECOP_OTHER_SIGALG:
+ {
+ const unsigned char *salg = other;
+ const char *sname = NULL;
+ switch (salg[1]) {
+ case TLSEXT_signature_anonymous:
+ sname = "anonymous";
+ break;
+ case TLSEXT_signature_rsa:
+ sname = "RSA";
+ break;
+ case TLSEXT_signature_dsa:
+ sname = "DSA";
+ break;
+ case TLSEXT_signature_ecdsa:
+ sname = "ECDSA";
+ break;
+ }
+
+ BIO_puts(sdb->out, OBJ_nid2sn(nid));
+ if (sname)
+ BIO_printf(sdb->out, ", algorithm=%s", sname);
+ else
+ BIO_printf(sdb->out, ", algid=%d", salg[1]);
+ break;
+ }
+
+ }
+
+ if (show_bits)
+ BIO_printf(sdb->out, ", security bits=%d", bits);
+ BIO_printf(sdb->out, ": %s\n", rv ? "yes" : "no");
+ return rv;
+}
+
+void ssl_ctx_security_debug(SSL_CTX *ctx, int verbose)
+{
+ static security_debug_ex sdb;
+
+ sdb.out = bio_err;
+ sdb.verbose = verbose;
+ sdb.old_cb = SSL_CTX_get_security_callback(ctx);
+ SSL_CTX_set_security_callback(ctx, security_callback_debug);
+ SSL_CTX_set0_security_ex_data(ctx, &sdb);
+}
+
+static void keylog_callback(const SSL *ssl, const char *line)
+{
+ if (bio_keylog == NULL) {
+ BIO_printf(bio_err, "Keylog callback is invoked without valid file!\n");
+ return;
+ }
+
+ /*
+ * There might be concurrent writers to the keylog file, so we must ensure
+ * that the given line is written at once.
+ */
+ BIO_printf(bio_keylog, "%s\n", line);
+ (void)BIO_flush(bio_keylog);
+}
+
+int set_keylog_file(SSL_CTX *ctx, const char *keylog_file)
+{
+ /* Close any open files */
+ BIO_free_all(bio_keylog);
+ bio_keylog = NULL;
+
+ if (ctx == NULL || keylog_file == NULL) {
+ /* Keylogging is disabled, OK. */
+ return 0;
+ }
+
+ /*
+ * Append rather than write in order to allow concurrent modification.
+ * Furthermore, this preserves existing keylog files which is useful when
+ * the tool is run multiple times.
+ */
+ bio_keylog = BIO_new_file(keylog_file, "a");
+ if (bio_keylog == NULL) {
+ BIO_printf(bio_err, "Error writing keylog file %s\n", keylog_file);
+ return 1;
+ }
+
+ /* Write a header for seekable, empty files (this excludes pipes). */
+ if (BIO_tell(bio_keylog) == 0) {
+ BIO_puts(bio_keylog,
+ "# SSL/TLS secrets log file, generated by OpenSSL\n");
+ (void)BIO_flush(bio_keylog);
+ }
+ SSL_CTX_set_keylog_callback(ctx, keylog_callback);
+ return 0;
+}
+
+void print_ca_names(BIO *bio, SSL *s)
+{
+ const char *cs = SSL_is_server(s) ? "server" : "client";
+ const STACK_OF(X509_NAME) *sk = SSL_get0_peer_CA_list(s);
+ int i;
+
+ if (sk == NULL || sk_X509_NAME_num(sk) == 0) {
+ BIO_printf(bio, "---\nNo %s certificate CA names sent\n", cs);
+ return;
+ }
+
+ BIO_printf(bio, "---\nAcceptable %s certificate CA names\n",cs);
+ for (i = 0; i < sk_X509_NAME_num(sk); i++) {
+ X509_NAME_print_ex(bio, sk_X509_NAME_value(sk, i), 0, get_nameopt());
+ BIO_write(bio, "\n", 1);
+ }
+}