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#include "tunala.h"
#ifndef NO_OPENSSL
/* For callbacks generating output, here are their file-descriptors. */
static FILE *fp_cb_ssl_info = NULL;
static FILE *fp_cb_ssl_verify = NULL;
/* Other static rubbish (to mirror s_cb.c where required) */
static int verify_depth = 10;
static int verify_error = X509_V_OK;
/* 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)
{
char *str1, *str2;
int w;
if(!fp_cb_ssl_info)
return;
w = where & ~SSL_ST_MASK;
str1 = (w & SSL_ST_CONNECT ? "SSL_connect" : (w & SSL_ST_ACCEPT ?
"SSL_accept" : "undefined")),
str2 = SSL_state_string_long(s);
if (where & SSL_CB_LOOP)
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);
else if (ret < 0)
fprintf(fp_cb_ssl_info, "%s:error in %s\n", str1, str2);
}
}
void cb_ssl_info_set_output(FILE *fp)
{
fp_cb_ssl_info = fp;
}
/* Stolen wholesale from apps/s_cb.c :-) */
int cb_ssl_verify(int ok, X509_STORE_CTX *ctx)
{
char buf[256];
X509 *err_cert;
int err, depth;
BIO *bio;
if(!fp_cb_ssl_verify)
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;
}
}
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);
break;
case X509_V_ERR_CERT_NOT_YET_VALID:
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");
break;
case X509_V_ERR_CERT_HAS_EXPIRED:
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");
break;
}
fprintf(fp_cb_ssl_verify, "verify return:%d\n",ok);
return ok;
}
void cb_ssl_verify_set_output(FILE *fp)
{
fp_cb_ssl_verify = fp;
}
#endif /* !defined(NO_OPENSSL) */
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