pkcs11test.cc

// Copyright 2013-2014 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

// C headers
#include <dlfcn.h>
#include <unistd.h>

// C++ headers
#include <cctype>
#include <cstring>
#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <map>
#include <memory>

// Local headers
#include "pkcs11test.h"

using namespace std;  // So sue me

namespace pkcs11 {
namespace test {

bool IsSpacePadded(const CK_UTF8CHAR *field, int len) {
  for (int ii = 0; ii < len; ii++) {
    if (!isprint(field[ii])) return false;
    if (field[ii] == '\0') return false;
  }
  return true;
}

int GetInteger(const CK_CHAR *val, int len) {
  if (len <= 0) return -1;
  int value = 0;
  for (int ii = 0; ii < len; ii++) {
    if (val[ii] < '0' || val[ii] > '9') return -1;
    int digit = val[ii] - '0';
    value = (value * 10) + digit;
  }
  return value;
}

typedef vector<string> TestList;
typedef map<string, std::unique_ptr<TestList> > SkippedTestMap;
static SkippedTestMap skipped_tests;
void TestSkipped(const char *testcase, const char *test, const string& reason) {
  if (skipped_tests.find(reason) == skipped_tests.end()) {
    skipped_tests[reason] = std::unique_ptr<TestList>(new TestList);
  }
  string testname(testcase);
  testname += ".";
  testname += test;
  skipped_tests[reason]->push_back(testname);
}

namespace {

void ShowSkippedTests(ostream& os) {
  for (SkippedTestMap::iterator skiplist = skipped_tests.begin();
       skiplist != skipped_tests.end(); ++skiplist) {
    os << "Following tests were skipped because: " << skiplist->first << endl;
    for (size_t ii = 0; ii < skiplist->second->size(); ++ii) {
      const string& testname((*skiplist->second)[ii]);
      os << "  " << testname << endl;
    }
  }
}

void usage() {
  cerr << "  -m name : name of PKCS#11 library" << endl;
  cerr << "  -l path : path to PKCS#11 library" << endl;
  cerr << "  -s id   : slot ID to perform tests against" << endl;
  cerr << "  -X      : skip tests requiring SO login" << endl;
  cerr << "  -v      : verbose output" << endl;
  cerr << "  -u pwd  : user PIN/password" << endl;
  cerr << "  -o pwd  : security officer PIN/password" << endl;
  cerr << "  -I      : perform token init tests **WILL WIPE TOKEN CONTENTS**" << endl;
  exit(1);
}

CK_C_GetFunctionList load_pkcs11_library(const char* libpath, const char* libname) {
  if (libname == nullptr) {
    cerr << "No library name provided" << endl;
    exit(1);
  }
  string fullname;
  if (libpath != nullptr) {
    fullname = libpath;
    if (fullname.at(fullname.size() - 1) != '/') {
      fullname += '/';
    }
  }
  fullname += libname;
  if (fullname.empty()) {
    cerr << "No library name provided" << endl;
    exit(1);
  }

  void* lib = dlopen(fullname.c_str(), RTLD_NOW);
  if (lib == nullptr) {
    cerr << "Failed to dlopen(" << fullname << ")" << endl;
    exit(1);
  }

  void* fn = dlsym(lib, "C_GetFunctionList");
  if (fn == nullptr) {
    cerr<< "Failed to dlsym(\"C_GetFunctionList\")" << endl;
    exit(1);
  }
  return (CK_C_GetFunctionList)fn;
}

}  // namespace
}  // namespace test
}  // namespace pkcs11

using namespace pkcs11;
using namespace pkcs11::test;

int main(int argc, char* argv[]) {
  // Let gTest have first crack at the arguments.
  ::testing::InitGoogleTest(&argc, argv);

  // Retrieve PKCS module location.
  bool explicit_slotid = false;
  int opt;
  const char* module_name = nullptr;
  const char* module_path = nullptr;
  while ((opt = getopt(argc, argv, "vIXl:m:s:u:o:h")) != -1) {
    switch (opt) {
      case 'v':
        g_verbose = true;
        break;
      case 'I':
        g_init_token = true;
        break;
      case 'X':
        g_so_tests = false;
        break;
      case 'l':
        module_path = optarg;
        break;
      case 'm':
        module_name = optarg;
        break;
      case 's':
        g_slot_id = atoi(optarg);
        explicit_slotid = true;
        break;
      case 'u':
        g_user_pin = optarg;
        break;
      case 'o':
        g_so_pin = optarg;
        break;
      case 'h':
      default:
        usage();
        break;
    }
  }

  // Load the module.
  CK_C_GetFunctionList get_fn_list = load_pkcs11_library(module_path, module_name);

  // Retrieve the set of function pointers (C_GetFunctionList is the only function it's OK to call before C_Initialize).
  if (get_fn_list(&g_fns) != CKR_OK) {
    cerr << "Failed to retrieve list of functions" << endl;
    exit(1);
  }

  CK_RV rv;
  rv = g_fns->C_Initialize(NULL_PTR);
  if (rv != CKR_OK) {
    cerr << "Failed to C_Initialize (" << rv_name(rv) << ")" << endl;
    exit(1);
  }

  if (!explicit_slotid) {
    // No slot specified; OK if there's only one accessible slot.
    CK_SLOT_ID slots[2];
    CK_ULONG slot_count = 2;
    rv = g_fns->C_GetSlotList(CK_TRUE, slots, &slot_count);
    if (rv == CKR_OK) {
      if (slot_count == 1) {
        g_slot_id = slots[0];
      } else if (slot_count == 0) {
        cerr << "No slots with tokens available" << endl;
        exit(1);
      } else {
        cerr << "Multiple slots with tokens available; specify one with -s" << endl;
        exit(1);
      }
    } else {
      cerr << "Failed to retrieve slot list" << endl;
      exit(1);
    }
  }

  // Determine the characteristics of the specified token/slot.
  CK_SLOT_INFO slot_info;
  memset(&slot_info, 0, sizeof(slot_info));
  rv = g_fns->C_GetSlotInfo(g_slot_id, &slot_info);
  if (rv != CKR_OK) {
    cerr << "Failed to get slot info (" << rv_name(rv) << ") for slot " << g_slot_id << endl;
    exit(1);
  }
  if (!(slot_info.flags & CKF_TOKEN_PRESENT)) {
    cerr << "Slot " << g_slot_id << " has no token present." << endl;
    exit(1);
  }
  CK_TOKEN_INFO token;
  memset(&token, 0, sizeof(token));
  rv = g_fns->C_GetTokenInfo(g_slot_id, &token);
  if (rv != CKR_OK) {
    cerr << "Failed to get token info (" << rv_name(rv) << ") for token in slot " << g_slot_id << endl;
    exit(1);
  }
  rv = g_fns->C_Finalize(NULL_PTR);
  if (rv != CKR_OK) {
    cerr << "Failed to C_Finalize (" << rv_name(rv) << ")" << endl;
    exit(1);
  }
  g_token_flags = token.flags;
  memcpy(g_token_label, token.label, sizeof(g_token_label));

  if (!(g_token_flags & CKF_LOGIN_REQUIRED)) {
    // Disable all tests that require login in their fixture.
    // This unfortunately relies on some gTest innards.
    string filter(testing::GTEST_FLAG(filter).c_str());
    if (!filter.empty()) filter += ":";
    filter += "-*UserSessionTest.*:*SOSessionTest.*";
    testing::GTEST_FLAG(filter) = filter;
  }

  int rc = RUN_ALL_TESTS();
  ShowSkippedTests(cerr);
  return rc;
}