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8168ca5181
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658 lines
14 KiB
C++
658 lines
14 KiB
C++
/* vi: set sw=4 ts=4:
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*
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* Copyright (C) 2009 - 2011 Christian Hohnstaedt.
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*
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* All rights reserved.
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*/
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#include "pkcs11_lib.h"
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#include "pkcs11.h"
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#include "pk11_attribute.h"
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#include "exception.h"
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#include "db_base.h"
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#include "func.h"
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#include "pass_info.h"
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#include "Passwd.h"
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#include <openssl/rand.h>
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#include <QtGui/QMessageBox>
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#include <QtCore/QThread>
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#include <ltdl.h>
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#include "ui_SelectToken.h"
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#include "widgets/PwDialog.h"
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pkcs11_lib_list pkcs11::libs;
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pkcs11::pkcs11()
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{
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session = CK_INVALID_HANDLE;
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p11obj = CK_INVALID_HANDLE;
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}
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pkcs11::~pkcs11()
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{
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if (session != CK_INVALID_HANDLE && p11slot.p11()) {
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WAITCURSOR_START;
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p11slot.p11()->C_CloseSession(session);
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WAITCURSOR_END;
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}
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}
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pkcs11_lib *pkcs11::load_lib(QString fname, bool silent)
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{
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pkcs11_lib *l;
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if (fname.isEmpty())
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return NULL;
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try {
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l = libs.add_lib(fname);
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} catch (errorEx &ex) {
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if (silent)
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return NULL;
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throw ex;
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}
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return l;
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}
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void pkcs11::load_libs(QString list, bool silent)
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{
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QStringList errs;
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if (!list.isEmpty()) {
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foreach(QString l, list.split('\n')) {
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try {
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pkcs11::load_lib(l, silent);
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} catch (errorEx &err) {
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errs << err.getString();
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}
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}
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if (errs.count())
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throw errorEx(errs.join("\n"));
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}
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}
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void pkcs11::startSession(slotid slot, bool rw)
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{
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CK_RV rv;
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unsigned long flags = CKF_SERIAL_SESSION | (rw ? CKF_RW_SESSION : 0);
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if (session != CK_INVALID_HANDLE) {
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WAITCURSOR_START;
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rv = slot.p11()->C_CloseSession(session);
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WAITCURSOR_END;
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session = CK_INVALID_HANDLE;
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if (rv != CKR_OK)
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pk11error(slot, "C_CloseSession", rv);
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}
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WAITCURSOR_START;
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rv = slot.p11()->C_OpenSession(slot.id, flags, NULL, NULL, &session);
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WAITCURSOR_END;
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if (rv != CKR_OK)
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pk11error(slot, "C_OpenSession", rv);
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p11slot = slot;
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}
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QList<CK_MECHANISM_TYPE> pkcs11::mechanismList(slotid slot)
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{
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CK_RV rv;
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CK_MECHANISM_TYPE *m;
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QList<CK_MECHANISM_TYPE> ml;
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unsigned long count;
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WAITCURSOR_START;
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rv = slot.p11()->C_GetMechanismList(slot.id, NULL, &count);
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WAITCURSOR_END;
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if (count != 0) {
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m = (CK_MECHANISM_TYPE *)malloc(count *sizeof(*m));
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check_oom(m);
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WAITCURSOR_START;
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rv = slot.p11()->C_GetMechanismList(slot.id, m, &count);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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free(m);
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pk11error(slot, "C_GetMechanismList", rv);
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}
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for (unsigned i=0; i<count; i++) {
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ml << m[i];
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}
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free(m);
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}
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return ml;
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}
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void pkcs11::mechanismInfo(slotid slot, CK_MECHANISM_TYPE m, CK_MECHANISM_INFO *info)
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{
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CK_RV rv;
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WAITCURSOR_START;
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rv = slot.p11()->C_GetMechanismInfo(slot.id, m, info);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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pk11error(slot, "C_GetMechanismInfo", rv);
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}
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}
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void pkcs11::logout()
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{
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CK_RV rv;
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p11slot.isValid();
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WAITCURSOR_START;
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rv = p11slot.p11()->C_Logout(session);
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WAITCURSOR_END;
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if (rv != CKR_OK && rv != CKR_USER_NOT_LOGGED_IN)
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pk11error("C_Logout", rv);
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}
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bool pkcs11::needsLogin(bool so)
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{
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CK_SESSION_INFO sinfo;
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CK_RV rv;
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p11slot.isValid();
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WAITCURSOR_START;
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rv = p11slot.p11()->C_GetSessionInfo(session, &sinfo);
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WAITCURSOR_END;
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if (rv != CKR_OK)
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pk11error("C_GetSessionInfo", rv);
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switch (sinfo.state) {
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case CKS_RO_PUBLIC_SESSION:
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case CKS_RW_PUBLIC_SESSION:
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return true;
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case CKS_RW_SO_FUNCTIONS:
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if (so) {
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return false;
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} else {
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logout();
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return true;
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}
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case CKS_RO_USER_FUNCTIONS:
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case CKS_RW_USER_FUNCTIONS:
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if (!so) {
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return false;
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} else {
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logout();
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return true;
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}
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}
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return true;
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}
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void pkcs11::login(unsigned char *pin, unsigned long pinlen, bool so)
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{
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unsigned long user = so ? CKU_SO : CKU_USER;
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CK_RV rv;
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p11slot.isValid();
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WAITCURSOR_START;
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rv = p11slot.p11()->C_Login(session, user, pin, pinlen);
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WAITCURSOR_END;
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if (rv != CKR_OK && rv != CKR_USER_ALREADY_LOGGED_IN)
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pk11error("C_Login", rv);
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}
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class pinPadLoginThread: public QThread
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{
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bool so;
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pkcs11 *p11;
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public:
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errorEx err;
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pinPadLoginThread(pkcs11 *_p11, bool _so) : QThread()
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{
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so = _so;
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p11 = _p11;
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}
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void run()
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{
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try {
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p11->login(NULL, 0, so);
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} catch (errorEx &e) {
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err = e;
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}
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}
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};
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static QDialog *newPinPadBox()
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{
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QDialog *box = new QDialog(NULL, Qt::WindowStaysOnTopHint);
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box->setWindowTitle(XCA_TITLE);
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QHBoxLayout *h = new QHBoxLayout(box);
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QLabel *l = new QLabel();
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l->setPixmap(*MainWindow::scardImg);
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l->setMaximumSize(QSize(95, 40));
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l->setScaledContents(true);
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h->addWidget(l);
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l = new QLabel(QObject::tr("Please enter the PIN on the PinPad"));
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h->addWidget(l);
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return box;
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}
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QString pkcs11::tokenLogin(QString name, bool so, bool force)
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{
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Passwd pin;
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bool need_login;
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QString text = so ?
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QObject::tr("Please enter the SO PIN (PUK) of the token %1"):
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QObject::tr("Please enter the PIN of the token %1");
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pass_info p(XCA_TITLE, text.arg(name));
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p.setPin();
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need_login = needsLogin(so);
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if (force || need_login) {
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if (!need_login)
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logout();
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if (tokenInfo().protAuthPath()) {
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pin.clear();
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QDialog *pinpadbox = newPinPadBox();
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pinpadbox->show();
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pinPadLoginThread ppt(this, so);
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ppt.start();
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while(!ppt.wait(20)) {
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qApp->processEvents();
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pinpadbox->raise();
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}
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delete pinpadbox;
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if (!ppt.err.isEmpty())
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throw errorEx(ppt.err);
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} else {
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if (PwDialog::execute(&p, &pin, false) != 1)
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return QString();
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}
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login(pin.constUchar(), pin.size(), so);
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} else {
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return QString("");
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}
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return QString(pin);
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}
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bool pkcs11::selectToken(slotid *slot, QWidget *w)
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{
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slotidList p11_slots = getSlotList();
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QStringList slotnames;
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foreach(slotid slot, p11_slots) {
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try {
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tkInfo info = tokenInfo(slot);
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slotnames << QString("%1 (#%2)").
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arg(info.label()).arg(info.serial());
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} catch (errorEx &e) {
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XCA_WARN(QString("Error: %1").arg(e.getString()));
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}
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}
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switch (slotnames.count()) {
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case 0:
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XCA_WARN(QObject::tr("No Security token found"));
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return false;
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case 1:
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*slot = p11_slots[0];
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return true;
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}
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Ui::SelectToken ui;
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QDialog *select_slot = new QDialog(w);
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ui.setupUi(select_slot);
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ui.image->setPixmap(*MainWindow::scardImg);
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ui.tokenBox->addItems(slotnames);
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ui.buttonBox->button(QDialogButtonBox::Ok)->setText(QObject::tr("Select"));
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if (select_slot->exec() == 0) {
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delete select_slot;
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return false;
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}
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int selected = ui.tokenBox->currentIndex();
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*slot = p11_slots[selected];
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delete select_slot;
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return true;
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}
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void pkcs11::setPin(unsigned char *oldPin, unsigned long oldPinLen,
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unsigned char *pin, unsigned long pinLen)
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{
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p11slot.isValid();
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WAITCURSOR_START;
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CK_RV rv = p11slot.p11()->C_SetPIN(session, oldPin, oldPinLen, pin, pinLen);
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WAITCURSOR_END;
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if (rv != CKR_OK)
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pk11error("C_SetPIN", rv);
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}
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static QString newSoPinTxt = QObject::tr(
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"Please enter the new SO PIN (PUK) for the token: '%1'");
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static QString newPinTxt = QObject::tr(
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"Please enter the new PIN for the token: '%1'");
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void pkcs11::changePin(slotid slot, bool so)
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{
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Passwd newPin, pinp;
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QString pin;
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startSession(slot, true);
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tkInfo ti = tokenInfo();
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if (ti.protAuthPath()) {
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setPin(NULL, 0, NULL, 0);
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return;
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}
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pin = tokenLogin(ti.label(), so, true);
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if (pin.isNull())
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return;
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QString msg = so ? newSoPinTxt : newPinTxt;
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pass_info p(XCA_TITLE, msg.arg(ti.label()) + "\n" + ti.pinInfo());
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p.setPin();
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if (PwDialog::execute(&p, &newPin, true) == 1) {
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pinp = pin.toAscii();
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setPin(pinp.constUchar(), pinp.size(),
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newPin.constUchar(), newPin.size());
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}
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logout();
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}
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void pkcs11::initPin(slotid slot)
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{
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Passwd newPin, pinp;
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int ret = 1;
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QString pin;
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startSession(slot, true);
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tkInfo ti = tokenInfo();
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pin = tokenLogin(ti.label(), true, false);
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if (pin.isNull())
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return;
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pass_info p(XCA_TITLE, newPinTxt.arg(ti.label()) + "\n" + ti.pinInfo());
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p.setPin();
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if (!ti.protAuthPath()) {
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ret = PwDialog::execute(&p, &newPin, true);
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pinp = newPin;
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}
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p11slot.isValid();
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if (ret == 1) {
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WAITCURSOR_START;
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CK_RV rv = p11slot.p11()->C_InitPIN(session,
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pinp.constUchar(), pinp.size());
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WAITCURSOR_END;
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if (rv != CKR_OK)
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pk11error("C_InitPIN", rv);
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}
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logout();
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}
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void pkcs11::initToken(slotid slot, unsigned char *pin, int pinlen,
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QString label)
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{
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unsigned char clabel[32];
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QByteArray ba = label.toUtf8().left(32);
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memset(clabel, ' ', 32);
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memcpy(clabel, ba.constData(), ba.size());
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WAITCURSOR_START;
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CK_RV rv = slot.p11()->C_InitToken(slot.id, pin, pinlen, clabel);
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WAITCURSOR_END;
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if (rv != CKR_OK)
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pk11error(slot, "C_InitToken", rv);
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}
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tkInfo pkcs11::tokenInfo(slotid slot)
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{
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CK_TOKEN_INFO token_info;
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CK_RV rv;
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WAITCURSOR_START;
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rv = slot.p11()->C_GetTokenInfo(slot.id, &token_info);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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pk11error(slot, "C_GetTokenInfo", rv);
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}
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return tkInfo(&token_info);
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}
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void pkcs11::loadAttribute(pk11_attribute &attribute, CK_OBJECT_HANDLE object)
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{
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p11slot.isValid();
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attribute.load(p11slot, session, object);
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}
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void pkcs11::storeAttribute(pk11_attribute &attribute, CK_OBJECT_HANDLE object)
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{
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p11slot.isValid();
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attribute.store(p11slot, session, object);
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}
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CK_OBJECT_HANDLE pkcs11::createObject(pk11_attlist &attrs)
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{
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CK_RV rv;
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CK_OBJECT_HANDLE obj;
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p11slot.isValid();
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WAITCURSOR_START;
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rv = p11slot.p11()->C_CreateObject(session, attrs.getAttributes(), attrs.length(), &obj);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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pk11error("C_CreateObject", rv);
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}
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return obj;
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}
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int pkcs11::deleteObjects(QList<CK_OBJECT_HANDLE> objects)
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{
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CK_RV rv;
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p11slot.isValid();
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for (int i=0; i< objects.count(); i++) {
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WAITCURSOR_START;
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rv = p11slot.p11()->C_DestroyObject(session, objects[i]);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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pk11error("C_DestroyObject", rv);
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}
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}
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return objects.count();
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}
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#define ID_LEN 8
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pk11_attr_data pkcs11::findUniqueID(unsigned long oclass)
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{
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pk11_attr_data id(CKA_ID);
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pk11_attr_ulong class_att(CKA_CLASS, oclass);
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while (1) {
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unsigned char buf[ID_LEN];
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pk11_attlist atts(class_att);
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RAND_pseudo_bytes(buf, ID_LEN);
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id.setValue(buf, ID_LEN);
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atts << id;
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if (objectList(atts).count() == 0)
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break;
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}
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return id;
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}
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pk11_attr_data pkcs11::generateRSAKey(QString name, unsigned long bits)
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{
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CK_RV rv;
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CK_OBJECT_HANDLE pubkey, privkey;
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pk11_attlist priv_atts, pub_atts;
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CK_MECHANISM mechanism = {CKM_RSA_PKCS_KEY_PAIR_GEN, NULL_PTR, 0};
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pk11_attr_data label(CKA_LABEL, name.toUtf8());
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pk11_attr_data new_id = findUniqueID(CKO_PUBLIC_KEY);
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pub_atts <<
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pk11_attr_ulong(CKA_CLASS, CKO_PUBLIC_KEY) <<
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pk11_attr_bool(CKA_TOKEN, true) <<
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pk11_attr_bool(CKA_PRIVATE, false) <<
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pk11_attr_bool(CKA_ENCRYPT, true) <<
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pk11_attr_bool(CKA_VERIFY, true) <<
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pk11_attr_bool(CKA_WRAP, true) <<
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pk11_attr_ulong(CKA_MODULUS_BITS, bits) <<
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pk11_attr_data(CKA_PUBLIC_EXPONENT, 0x10001) <<
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label << new_id;
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priv_atts <<
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pk11_attr_ulong(CKA_CLASS, CKO_PRIVATE_KEY) <<
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pk11_attr_bool(CKA_TOKEN, true) <<
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pk11_attr_bool(CKA_PRIVATE, true) <<
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pk11_attr_bool(CKA_SENSITIVE, true) <<
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pk11_attr_bool(CKA_DECRYPT, true) <<
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pk11_attr_bool(CKA_SIGN, true) <<
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pk11_attr_bool(CKA_UNWRAP, true) <<
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label << new_id;
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p11slot.isValid();
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WAITCURSOR_START;
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rv = p11slot.p11()->C_GenerateKeyPair(session, &mechanism,
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pub_atts.getAttributes(), pub_atts.length(),
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priv_atts.getAttributes(), priv_atts.length(),
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&pubkey, &privkey);
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WAITCURSOR_END;
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if (rv != CKR_OK) {
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pk11error("C_GenerateKeyPair", rv);
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}
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return new_id;
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}
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QList<CK_OBJECT_HANDLE> pkcs11::objectList(pk11_attlist &atts)
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{
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CK_RV rv;
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CK_OBJECT_HANDLE objects[256];
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QList<CK_OBJECT_HANDLE> list;
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unsigned long len, i, att_num;
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CK_ATTRIBUTE *attribute;
|
|
|
|
att_num = atts.get(&attribute);
|
|
|
|
p11slot.isValid();
|
|
WAITCURSOR_START;
|
|
rv = p11slot.p11()->C_FindObjectsInit(session, attribute, att_num);
|
|
WAITCURSOR_END;
|
|
|
|
if (rv != CKR_OK)
|
|
pk11error("C_FindObjectsInit", rv);
|
|
|
|
do {
|
|
WAITCURSOR_START;
|
|
rv = p11slot.p11()->C_FindObjects(session, objects, 256, &len);
|
|
WAITCURSOR_END;
|
|
if (rv != CKR_OK)
|
|
pk11error("C_FindObjects", rv);
|
|
for (i=0; i<len; i++)
|
|
list += objects[i];
|
|
} while (len);
|
|
|
|
WAITCURSOR_START;
|
|
rv = p11slot.p11()->C_FindObjectsFinal(session);
|
|
WAITCURSOR_END;
|
|
if (rv != CKR_OK)
|
|
pk11error("C_FindObjectsFinal", rv);
|
|
|
|
return list;
|
|
}
|
|
|
|
int pkcs11::decrypt(int flen, const unsigned char *from,
|
|
unsigned char *to, int tolen)
|
|
{
|
|
CK_MECHANISM mech;
|
|
CK_ULONG size = tolen;
|
|
CK_RV rv;
|
|
|
|
memset(&mech, 0, sizeof(mech));
|
|
mech.mechanism = CKM_RSA_PKCS;
|
|
|
|
WAITCURSOR_START;
|
|
rv = p11slot.p11()->C_DecryptInit(session, &mech, p11obj);
|
|
if (rv == CKR_OK)
|
|
rv = p11slot.p11()->C_Decrypt(session, (CK_BYTE *)from,
|
|
flen, to, &size);
|
|
WAITCURSOR_END;
|
|
if (rv != CKR_OK) {
|
|
fprintf(stderr, "Error: C_Decrypt(init): %s\n",
|
|
pk11errorString(rv));
|
|
return -1;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
int pkcs11::encrypt(int flen, const unsigned char *from,
|
|
unsigned char *to, int tolen)
|
|
{
|
|
CK_MECHANISM mech;
|
|
CK_ULONG size = tolen;
|
|
CK_RV rv;
|
|
|
|
memset(&mech, 0, sizeof(mech));
|
|
mech.mechanism = CKM_RSA_PKCS;
|
|
|
|
WAITCURSOR_START;
|
|
rv = p11slot.p11()->C_SignInit(session, &mech, p11obj);
|
|
if (rv == CKR_OK)
|
|
rv = p11slot.p11()->C_Sign(session, (CK_BYTE *)from,
|
|
flen, to, &size);
|
|
WAITCURSOR_END;
|
|
if (rv != CKR_OK) {
|
|
fprintf(stderr, "Error: C_Sign(init): %s\n",
|
|
pk11errorString(rv));
|
|
return -1;
|
|
}
|
|
return size;
|
|
}
|
|
|
|
static int rsa_privdata_free(RSA *rsa)
|
|
{
|
|
pkcs11 *priv = (pkcs11*)RSA_get_app_data(rsa);
|
|
delete priv;
|
|
return 0;
|
|
}
|
|
|
|
static int rsa_encrypt(int flen, const unsigned char *from,
|
|
unsigned char *to, RSA * rsa, int padding)
|
|
{
|
|
pkcs11 *priv = (pkcs11*)RSA_get_app_data(rsa);
|
|
|
|
if (padding != RSA_PKCS1_PADDING) {
|
|
return -1;
|
|
}
|
|
return priv->encrypt(flen, from, to, BN_num_bytes(rsa->n));
|
|
}
|
|
|
|
static int rsa_decrypt(int flen, const unsigned char *from,
|
|
unsigned char *to, RSA * rsa, int padding)
|
|
{
|
|
pkcs11 *priv = (pkcs11*)RSA_get_app_data(rsa);
|
|
|
|
if (padding != RSA_PKCS1_PADDING) {
|
|
return -1;
|
|
}
|
|
return priv->decrypt(flen, from, to, flen);
|
|
}
|
|
|
|
EVP_PKEY *pkcs11::getPrivateKey(EVP_PKEY *pub, CK_OBJECT_HANDLE obj)
|
|
{
|
|
static RSA_METHOD rsa_meth, *ops = NULL;
|
|
RSA *rsa;
|
|
EVP_PKEY *evp;
|
|
|
|
if (EVP_PKEY_type(pub->type) != EVP_PKEY_RSA)
|
|
return NULL;
|
|
|
|
p11slot.isValid();
|
|
rsa = RSAPublicKey_dup(pub->pkey.rsa);
|
|
openssl_error();
|
|
if (!ops) {
|
|
rsa_meth = *RSA_get_default_method();
|
|
rsa_meth.rsa_priv_enc = rsa_encrypt;
|
|
rsa_meth.rsa_priv_dec = rsa_decrypt;
|
|
rsa_meth.finish = rsa_privdata_free;
|
|
ops = &rsa_meth;
|
|
}
|
|
p11obj = obj;
|
|
RSA_set_method(rsa, ops);
|
|
RSA_set_app_data(rsa, this);
|
|
evp = EVP_PKEY_new();
|
|
openssl_error();
|
|
EVP_PKEY_assign_RSA(evp, rsa);
|
|
return evp;
|
|
}
|