/* For callbacks generating output, here are their file-descriptors. */
static FILE *fp_cb_ssl_info = NULL;
static FILE *fp_cb_ssl_verify = NULL;
+/* Output level:
+ * 0 = nothing,
+ * 1 = minimal, just errors,
+ * 2 = minimal, all steps,
+ * 3 = detail, all steps */
+static unsigned int cb_ssl_verify_level = 1;
/* Other static rubbish (to mirror s_cb.c where required) */
-static int verify_depth = 10;
-static int verify_error = X509_V_OK;
+static int int_verify_depth = 10;
/* This function is largely borrowed from the one used in OpenSSL's "s_client"
* and "s_server" utilities. */
-void cb_ssl_info(SSL *s, int where, int ret)
+void cb_ssl_info(const SSL *s, int where, int ret)
{
- char *str1, *str2;
+ const char *str1, *str2;
int w;
if(!fp_cb_ssl_info)
str2 = SSL_state_string_long(s);
if (where & SSL_CB_LOOP)
- fprintf(fp_cb_ssl_info, "%s:%s\n", str1, str2);
+ fprintf(fp_cb_ssl_info, "(%s) %s\n", str1, str2);
else if (where & SSL_CB_EXIT) {
if (ret == 0)
- fprintf(fp_cb_ssl_info, "%s:failed in %s\n", str1, str2);
+ fprintf(fp_cb_ssl_info, "(%s) failed in %s\n", str1, str2);
+/* In a non-blocking model, we get a few of these "error"s simply because we're
+ * calling "reads" and "writes" on the state-machine that are virtual NOPs
+ * simply to avoid wasting the time seeing if we *should* call them. Removing
+ * this case makes the "-out_state" output a lot easier on the eye. */
+#if 0
else if (ret < 0)
fprintf(fp_cb_ssl_info, "%s:error in %s\n", str1, str2);
+#endif
}
}
fp_cb_ssl_info = fp;
}
-/* Stolen wholesale from apps/s_cb.c :-) */
+static const char *int_reason_no_issuer = "X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT";
+static const char *int_reason_not_yet = "X509_V_ERR_CERT_NOT_YET_VALID";
+static const char *int_reason_before = "X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD";
+static const char *int_reason_expired = "X509_V_ERR_CERT_HAS_EXPIRED";
+static const char *int_reason_after = "X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD";
+
+/* Stolen wholesale from apps/s_cb.c :-) And since then, mutilated ... */
int cb_ssl_verify(int ok, X509_STORE_CTX *ctx)
{
- char buf[256];
+ char buf1[256]; /* Used for the subject name */
+ char buf2[256]; /* Used for the issuer name */
+ const char *reason = NULL; /* Error reason (if any) */
X509 *err_cert;
int err, depth;
- BIO *bio;
- if(!fp_cb_ssl_verify)
+ if(!fp_cb_ssl_verify || (cb_ssl_verify_level == 0))
return ok;
- /* There's no <damned>FILE*</damned> version of ASN1_TIME_print */
- bio = BIO_new_fp(fp_cb_ssl_verify, BIO_NOCLOSE);
err_cert = X509_STORE_CTX_get_current_cert(ctx);
err = X509_STORE_CTX_get_error(ctx);
depth = X509_STORE_CTX_get_error_depth(ctx);
- X509_NAME_oneline(X509_get_subject_name(err_cert), buf, 256);
- fprintf(fp_cb_ssl_verify, "depth=%d %s\n", depth, buf);
- if(!ok) {
- fprintf(fp_cb_ssl_verify,"verify error:num=%d:%s\n",err,
- X509_verify_cert_error_string(err));
- if(verify_depth >= depth) {
- ok = 1;
- verify_error = X509_V_OK;
- } else {
- ok=0;
- verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
- }
- }
+ buf1[0] = buf2[0] = '\0';
+ /* Fill buf1 */
+ X509_NAME_oneline(X509_get_subject_name(err_cert), buf1, 256);
+ /* Fill buf2 */
+ X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert), buf2, 256);
switch (ctx->error) {
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
- X509_NAME_oneline(X509_get_issuer_name(ctx->current_cert),
- buf, 256);
- fprintf(fp_cb_ssl_verify, "issuer= %s\n", buf);
+ reason = int_reason_no_issuer;
break;
case X509_V_ERR_CERT_NOT_YET_VALID:
+ reason = int_reason_not_yet;
+ break;
case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
- fprintf(fp_cb_ssl_verify, "notBefore=");
- ASN1_TIME_print(bio, X509_get_notBefore(ctx->current_cert));
- fprintf(fp_cb_ssl_verify, "\n");
+ reason = int_reason_before;
break;
case X509_V_ERR_CERT_HAS_EXPIRED:
+ reason = int_reason_expired;
+ break;
case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
- fprintf(fp_cb_ssl_verify, "notAfter=");
- ASN1_TIME_print(bio, X509_get_notAfter(ctx->current_cert));
- fprintf(fp_cb_ssl_verify, "\n");
+ reason = int_reason_after;
break;
}
- fprintf(fp_cb_ssl_verify, "verify return:%d\n",ok);
+
+ if((cb_ssl_verify_level == 1) && ok)
+ return ok;
+ fprintf(fp_cb_ssl_verify, "chain-depth=%d, ", depth);
+ if(reason)
+ fprintf(fp_cb_ssl_verify, "error=%s\n", reason);
+ else
+ fprintf(fp_cb_ssl_verify, "error=%d\n", err);
+ if(cb_ssl_verify_level < 3)
+ return ok;
+ fprintf(fp_cb_ssl_verify, "--> subject = %s\n", buf1);
+ fprintf(fp_cb_ssl_verify, "--> issuer = %s\n", buf2);
+ if(!ok)
+ fprintf(fp_cb_ssl_verify,"--> verify error:num=%d:%s\n",err,
+ X509_verify_cert_error_string(err));
+ fprintf(fp_cb_ssl_verify, "--> verify return:%d\n",ok);
return ok;
}
fp_cb_ssl_verify = fp;
}
+void cb_ssl_verify_set_depth(unsigned int verify_depth)
+{
+ int_verify_depth = verify_depth;
+}
+
+void cb_ssl_verify_set_level(unsigned int level)
+{
+ if(level < 4)
+ cb_ssl_verify_level = level;
+}
+
+RSA *cb_generate_tmp_rsa(SSL *s, int is_export, int keylength)
+{
+ /* TODO: Perhaps make it so our global key can be generated on-the-fly
+ * after certain intervals? */
+ static RSA *rsa_tmp = NULL;
+ BIGNUM *bn = NULL;
+ int ok = 1;
+ if(!rsa_tmp) {
+ ok = 0;
+ if(!(bn = BN_new()))
+ goto end;
+ if(!BN_set_word(bn, RSA_F4))
+ goto end;
+ if(!(rsa_tmp = RSA_new()))
+ goto end;
+ if(!RSA_generate_key_ex(rsa_tmp, keylength, bn, NULL))
+ goto end;
+ ok = 1;
+ }
+end:
+ if(bn)
+ BN_free(bn);
+ if(!ok) {
+ RSA_free(rsa_tmp);
+ rsa_tmp = NULL;
+ }
+ return rsa_tmp;
+}
+
#endif /* !defined(NO_OPENSSL) */