#include "ssl.h"
#include "m_cap.h"
-#ifdef WINDOWS
+#ifdef _WIN32
# pragma comment(lib, "libgnutls.lib")
# pragma comment(lib, "libgcrypt.lib")
# pragma comment(lib, "libgpg-error.lib")
#endif
/* $ModDesc: Provides SSL support for clients */
-/* $CompileFlags: pkgconfincludes("gnutls","/gnutls/gnutls.h","") -Wno-deprecated-declarations */
-/* $LinkerFlags: rpath("pkg-config --libs gnutls") pkgconflibs("gnutls","/libgnutls.so","-lgnutls") -lgcrypt */
+/* $CompileFlags: pkgconfincludes("gnutls","/gnutls/gnutls.h","") exec("libgcrypt-config --cflags") */
+/* $LinkerFlags: rpath("pkg-config --libs gnutls") pkgconflibs("gnutls","/libgnutls.so","-lgnutls") exec("libgcrypt-config --libs") */
+/* $NoPedantic */
+
+// These don't exist in older GnuTLS versions
+#if(GNUTLS_VERSION_MAJOR < 2)
+typedef gnutls_certificate_credentials_t gnutls_certificate_credentials;
+typedef gnutls_dh_params_t gnutls_dh_params;
+#endif
enum issl_status { ISSL_NONE, ISSL_HANDSHAKING_READ, ISSL_HANDSHAKING_WRITE, ISSL_HANDSHAKEN, ISSL_CLOSING, ISSL_CLOSED };
static std::vector<gnutls_x509_crt_t> x509_certs;
static gnutls_x509_privkey_t x509_key;
+#if(GNUTLS_VERSION_MAJOR < 2 || ( GNUTLS_VERSION_MAJOR == 2 && GNUTLS_VERSION_MINOR < 12 ) )
static int cert_callback (gnutls_session_t session, const gnutls_datum_t * req_ca_rdn, int nreqs,
const gnutls_pk_algorithm_t * sign_algos, int sign_algos_length, gnutls_retr_st * st) {
st->type = GNUTLS_CRT_X509;
+#else
+static int cert_callback (gnutls_session_t session, const gnutls_datum_t * req_ca_rdn, int nreqs,
+ const gnutls_pk_algorithm_t * sign_algos, int sign_algos_length, gnutls_retr2_st * st) {
+ st->cert_type = GNUTLS_CRT_X509;
+ st->key_type = GNUTLS_PRIVKEY_X509;
+#endif
st->ncerts = x509_certs.size();
st->cert.x509 = &x509_certs[0];
st->key.x509 = x509_key;
{
issl_session* sessions;
- gnutls_certificate_credentials x509_cred;
- gnutls_dh_params dh_params;
+ gnutls_certificate_credentials_t x509_cred;
+ gnutls_dh_params_t dh_params;
gnutls_digest_algorithm_t hash;
gnutls_priority_t priority;
ConfigTag* Conf = ServerInstance->Config->ConfValue("gnutls");
- cafile = Conf->getString("cafile", "conf/ca.pem");
- crlfile = Conf->getString("crlfile", "conf/crl.pem");
- certfile = Conf->getString("certfile", "conf/cert.pem");
- keyfile = Conf->getString("keyfile", "conf/key.pem");
+ cafile = Conf->getString("cafile", CONFIG_PATH "/ca.pem");
+ crlfile = Conf->getString("crlfile", CONFIG_PATH "/crl.pem");
+ certfile = Conf->getString("certfile", CONFIG_PATH "/cert.pem");
+ keyfile = Conf->getString("keyfile", CONFIG_PATH "/key.pem");
dh_bits = Conf->getInt("dhbits");
std::string hashname = Conf->getString("hash", "md5");
gnutls_datum_t key_datum = { (unsigned char*)key_string.data(), static_cast<unsigned int>(key_string.length()) };
// If this fails, no SSL port will work. At all. So, do the smart thing - throw a ModuleException
- unsigned int certcount = Conf->getInt("certcount", 3);
+ unsigned int certcount = 3;
x509_certs.resize(certcount);
ret = gnutls_x509_crt_list_import(&x509_certs[0], &certcount, &cert_datum, GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
- if (ret < 0)
- throw ModuleException("Unable to load GnuTLS server certificate (" + certfile + "): " + std::string(gnutls_strerror(ret)));
- x509_certs.resize(certcount);
+ if (ret == GNUTLS_E_SHORT_MEMORY_BUFFER)
+ {
+ // the buffer wasn't big enough to hold all certs but gnutls updated certcount to the number of available certs, try again with a bigger buffer
+ x509_certs.resize(certcount);
+ ret = gnutls_x509_crt_list_import(&x509_certs[0], &certcount, &cert_datum, GNUTLS_X509_FMT_PEM, GNUTLS_X509_CRT_LIST_IMPORT_FAIL_IF_EXCEED);
+ }
+
+ if (ret <= 0)
+ {
+ // clear the vector so we won't call gnutls_x509_crt_deinit() on the (uninited) certs later
+ x509_certs.clear();
+ throw ModuleException("Unable to load GnuTLS server certificate (" + certfile + "): " + ((ret < 0) ? (std::string(gnutls_strerror(ret))) : "No certs could be read"));
+ }
+ x509_certs.resize(ret);
if((ret = gnutls_x509_privkey_import(x509_key, &key_datum, GNUTLS_X509_FMT_PEM)) < 0)
throw ModuleException("Unable to load GnuTLS server private key (" + keyfile + "): " + std::string(gnutls_strerror(ret)));
if ((ret = gnutls_priority_init(&priority, priocstr, &prioerror)) < 0)
{
// gnutls did not understand the user supplied string, log and fall back to the default priorities
- ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to set priorities to \"%s\": %s Syntax error at position %ld, falling back to default (NORMAL)", priorities.c_str(), gnutls_strerror(ret), (prioerror - priocstr));
+ ServerInstance->Logs->Log("m_ssl_gnutls",DEFAULT, "m_ssl_gnutls.so: Failed to set priorities to \"%s\": %s Syntax error at position %u, falling back to default (NORMAL)", priorities.c_str(), gnutls_strerror(ret), (unsigned int) (prioerror - priocstr));
gnutls_priority_init(&priority, "NORMAL", NULL);
}
+ #if(GNUTLS_VERSION_MAJOR < 2 || ( GNUTLS_VERSION_MAJOR == 2 && GNUTLS_VERSION_MINOR < 12 ) )
gnutls_certificate_client_set_retrieve_function (x509_cred, cert_callback);
-
+ #else
+ gnutls_certificate_set_retrieve_function (x509_cred, cert_callback);
+ #endif
ret = gnutls_dh_params_init(&dh_params);
dh_alloc = (ret >= 0);
if (!dh_alloc)
}
else if (ret == 0)
{
- user->SetError("SSL Connection closed");
+ user->SetError("Connection closed");
CloseSession(session);
return -1;
}
}
else
{
- user->SetError(std::string("Handshake Failed - ") + gnutls_strerror(ret));
+ user->SetError("Handshake Failed - " + std::string(gnutls_strerror(ret)));
CloseSession(session);
session->status = ISSL_CLOSING;
}
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