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Code

Check whether the client certificate is expired.

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Right now we only warn the user, the connection keeps going.
Fixes #211
This commit is contained in:
LemonBoy 2017-01-22 21:49:37 +01:00
parent 228f487a69
commit 697dd19d88
1 changed files with 29 additions and 7 deletions
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36
src/core/network-openssl.c
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@ -420,16 +420,38 @@ static GIOChannel *irssi_ssl_get_iochannel(GIOChannel *handle, int port, SERVER_
if (mycert && *mycert) {
char *scert = NULL, *spkey = NULL;
FILE *fp;
scert = convert_home(mycert);
if (mypkey && *mypkey)
spkey = convert_home(mypkey);
ERR_clear_error();
if (! SSL_CTX_use_certificate_file(ctx, scert, SSL_FILETYPE_PEM))
g_warning("Loading of client certificate '%s' failed: %s", mycert, ERR_reason_error_string(ERR_get_error()));
else if (! SSL_CTX_use_PrivateKey_file(ctx, spkey ? spkey : scert, SSL_FILETYPE_PEM))
g_warning("Loading of private key '%s' failed: %s", mypkey ? mypkey : mycert, ERR_reason_error_string(ERR_get_error()));
else if (! SSL_CTX_check_private_key(ctx))
g_warning("Private key does not match the certificate");
if ((fp = fopen(scert, "r"))) {
X509 *cert;
/* Let's parse the certificate by hand instead of using
* SSL_CTX_use_certificate_file so that we can validate
* some parts of it. */
cert = PEM_read_X509(fp, NULL, get_pem_password_callback, (void *)mypass);
if (cert != NULL) {
/* Only the expiration date is checked right now */
if (X509_cmp_current_time(X509_get_notAfter(cert)) <= 0 ||
X509_cmp_current_time(X509_get_notBefore(cert)) >= 0)
g_warning("The client certificate is expired");
ERR_clear_error();
if (! SSL_CTX_use_certificate(ctx, cert))
g_warning("Loading of client certificate '%s' failed: %s", mycert, ERR_reason_error_string(ERR_get_error()));
else if (! SSL_CTX_use_PrivateKey_file(ctx, spkey ? spkey : scert, SSL_FILETYPE_PEM))
g_warning("Loading of private key '%s' failed: %s", mypkey ? mypkey : mycert, ERR_reason_error_string(ERR_get_error()));
else if (! SSL_CTX_check_private_key(ctx))
g_warning("Private key does not match the certificate");
X509_free(cert);
} else
g_warning("Loading of client certificate '%s' failed: %s", mycert, ERR_reason_error_string(ERR_get_error()));
fclose(fp);
} else
g_warning("Could not find client certificate '%s'", scert);
g_free(scert);
g_free(spkey);
}