src/libpts/plugins/imv_attestation/attest.c

   1 /*
   2  * Copyright (C) 2011 Andreas Steffen
   3  * HSR Hochschule fuer Technik Rapperswil
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #define _GNU_SOURCE
  17 #include <getopt.h>
  18 #include <unistd.h>
  19 #include <stdio.h>
  20 #include <string.h>
  21 #include <errno.h>
  22 #include <syslog.h>
  23
  24 #include <library.h>
  25 #include <debug.h>
  26
  27 #include <imcv.h>
  28 #include <libpts.h>
  29 #include <pts/pts_meas_algo.h>
  30
  31 #include "attest_db.h"
  32 #include "attest_usage.h"
  33
  34 /**
  35  * global debug output variables
  36  */
  37 static int debug_level = 0;
  38 static bool stderr_quiet = TRUE;
  39
  40 /**
  41  * attest dbg function
  42  */
  43 static void attest_dbg(debug_t group, level_t level, char *fmt, ...)
  44 {
  45         int priority = LOG_INFO;
  46         char buffer[8192];
  47         char *current = buffer, *next;
  48         va_list args;
  49
  50         if (level <= debug_level)
  51         {
  52                 if (!stderr_quiet)
  53                 {
  54                         va_start(args, fmt);
  55                         vfprintf(stderr, fmt, args);
  56                         fprintf(stderr, "\n");
  57                         va_end(args);
  58                 }
  59
  60                 /* write in memory buffer first */
  61                 va_start(args, fmt);
  62                 vsnprintf(buffer, sizeof(buffer), fmt, args);
  63                 va_end(args);
  64
  65                 /* do a syslog with every line */
  66                 while (current)
  67                 {
  68                         next = strchr(current, '\n');
  69                         if (next)
  70                         {
  71                                 *(next++) = '\0';
  72                         }
  73                         syslog(priority, "%s\n", current);
  74                         current = next;
  75                 }
  76         }
  77 }
  78
  79 /**
  80  * global attestation database object
  81  */
  82 attest_db_t *attest;
  83
  84 /**
  85  * atexit handler to close db on shutdown
  86  */
  87 static void cleanup(void)
  88 {
  89         attest->destroy(attest);
  90         libpts_deinit();
  91         libimcv_deinit();
  92         closelog();
  93 }
  94
  95 static void do_args(int argc, char *argv[])
  96 {
  97         enum {
  98                 OP_UNDEF,
  99                 OP_USAGE,
 100                 OP_KEYS,
 101                 OP_COMPONENTS,
 102                 OP_FILES,
 103                 OP_HASHES,
 104                 OP_MEASUREMENTS,
 105                 OP_PRODUCTS,
 106                 OP_ADD,
 107                 OP_DEL,
 108         } op = OP_UNDEF;
 109
 110         /* reinit getopt state */
 111         optind = 0;
 112
 113         while (TRUE)
 114         {
 115                 int c;
 116
 117                 struct option long_opts[] = {
 118                         { "help", no_argument, NULL, 'h' },
 119                         { "components", no_argument, NULL, 'c' },
 120                         { "files", no_argument, NULL, 'f' },
 121                         { "keys", no_argument, NULL, 'k' },
 122                         { "products", no_argument, NULL, 'p' },
 123                         { "hashes", no_argument, NULL, 'H' },
 124                         { "measurements", no_argument, NULL, 'M' },
 125                         { "add", no_argument, NULL, 'a' },
 126                         { "delete", no_argument, NULL, 'd' },
 127                         { "del", no_argument, NULL, 'd' },
 128                         { "component", required_argument, NULL, 'C' },
 129                         { "comp", required_argument, NULL, 'C' },
 130                         { "directory", required_argument, NULL, 'D' },
 131                         { "dir", required_argument, NULL, 'D' },
 132                         { "file", required_argument, NULL, 'F' },
 133                         { "key", required_argument, NULL, 'K' },
 134                         { "owner", required_argument, NULL, 'O' },
 135                         { "product", required_argument, NULL, 'P' },
 136                         { "sha1", no_argument, NULL, '1' },
 137                         { "sha256", no_argument, NULL, '2' },
 138                         { "sha384", no_argument, NULL, '3' },
 139                         { "did", required_argument, NULL, '4' },
 140                         { "fid", required_argument, NULL, '5' },
 141                         { "pid", required_argument, NULL, '6' },
 142                         { "cid", required_argument, NULL, '7' },
 143                         { "kid", required_argument, NULL, '8' },
 144                         { 0,0,0,0 }
 145                 };
 146
 147                 c = getopt_long(argc, argv, "", long_opts, NULL);
 148                 switch (c)
 149                 {
 150                         case EOF:
 151                                 break;
 152                         case 'h':
 153                                 op = OP_USAGE;
 154                                 break;
 155                         case 'c':
 156                                 op = OP_COMPONENTS;
 157                                 continue;
 158                         case 'f':
 159                                 op = OP_FILES;
 160                                 continue;
 161                         case 'k':
 162                                 op = OP_KEYS;
 163                                 continue;
 164                         case 'p':
 165                                 op = OP_PRODUCTS;
 166                                 continue;
 167                         case 'H':
 168                                 op = OP_HASHES;
 169                                 continue;
 170                         case 'M':
 171                                 op = OP_MEASUREMENTS;
 172                                 continue;
 173                         case 'a':
 174                                 op = OP_ADD;
 175                                 continue;
 176                         case 'd':
 177                                 op = OP_DEL;
 178                                 continue;
 179                         case 'C':
 180                                 if (!attest->set_component(attest, optarg, op == OP_ADD))
 181                                 {
 182                                         exit(EXIT_FAILURE);
 183                                 }
 184                                 continue;
 185                         case 'D':
 186                                 if (!attest->set_directory(attest, optarg, op == OP_ADD))
 187                                 {
 188                                         exit(EXIT_FAILURE);
 189                                 }
 190                                 continue;
 191                         case 'F':
 192                                 if (!attest->set_file(attest, optarg, op == OP_ADD))
 193                                 {
 194                                         exit(EXIT_FAILURE);
 195                                 }
 196                                 continue;
 197                         case 'K':
 198                                 if (!attest->set_key(attest, optarg, op == OP_ADD))
 199                                 {
 200                                         exit(EXIT_FAILURE);
 201                                 }
 202                                 continue;
 203                         case 'O':
 204                                 attest->set_owner(attest, optarg);
 205                                 continue;
 206                         case 'P':
 207                                 if (!attest->set_product(attest, optarg, op == OP_ADD))
 208                                 {
 209                                         exit(EXIT_FAILURE);
 210                                 }
 211                                 continue;
 212                         case '1':
 213                                 attest->set_algo(attest, PTS_MEAS_ALGO_SHA1);
 214                                 continue;
 215                         case '2':
 216                                 attest->set_algo(attest, PTS_MEAS_ALGO_SHA256);
 217                                 continue;
 218                         case '3':
 219                                 attest->set_algo(attest, PTS_MEAS_ALGO_SHA384);
 220                                 continue;
 221                         case '4':
 222                                 if (!attest->set_did(attest, atoi(optarg)))
 223                                 {
 224                                         exit(EXIT_FAILURE);
 225                                 }
 226                                 continue;
 227                         case '5':
 228                                 if (!attest->set_fid(attest, atoi(optarg)))
 229                                 {
 230                                         exit(EXIT_FAILURE);
 231                                 }
 232                                 continue;
 233                         case '6':
 234                                 if (!attest->set_pid(attest, atoi(optarg)))
 235                                 {
 236                                         exit(EXIT_FAILURE);
 237                                 }
 238                                 continue;
 239                         case '7':
 240                                 if (!attest->set_cid(attest, atoi(optarg)))
 241                                 {
 242                                         exit(EXIT_FAILURE);
 243                                 }
 244                                 continue;
 245                         case '8':
 246                                 if (!attest->set_kid(attest, atoi(optarg)))
 247                                 {
 248                                         exit(EXIT_FAILURE);
 249                                 }
 250                                 continue;
 251                 }
 252                 break;
 253         }
 254
 255         switch (op)
 256         {
 257                 case OP_USAGE:
 258                         usage();
 259                         break;
 260                 case OP_PRODUCTS:
 261                         attest->list_products(attest);
 262                         break;
 263                 case OP_KEYS:
 264                         attest->list_keys(attest);
 265                         break;
 266                 case OP_COMPONENTS:
 267                         attest->list_components(attest);
 268                         break;
 269                 case OP_FILES:
 270                         attest->list_files(attest);
 271                         break;
 272                 case OP_HASHES:
 273                         attest->list_hashes(attest);
 274                         break;
 275                 case OP_MEASUREMENTS:
 276                         attest->list_measurements(attest);
 277                         break;
 278                 case OP_ADD:
 279                         attest->add(attest);
 280                         break;
 281                 case OP_DEL:
 282                         attest->delete(attest);
 283                         break;
 284                 default:
 285                         usage();
 286                         exit(EXIT_FAILURE);
 287         }
 288 }
 289
 290 int main(int argc, char *argv[])
 291 {
 292         char *uri;
 293
 294         /* enable attest debugging hook */
 295         dbg = attest_dbg;
 296         openlog("attest", 0, LOG_DEBUG);
 297
 298         atexit(library_deinit);
 299
 300         /* initialize library */
 301         if (!library_init(NULL))
 302         {
 303                 exit(SS_RC_LIBSTRONGSWAN_INTEGRITY);
 304         }
 305         if (!lib->plugins->load(lib->plugins, NULL,
 306                         lib->settings->get_str(lib->settings, "attest.load", PLUGINS)))
 307         {
 308                 exit(SS_RC_INITIALIZATION_FAILED);
 309         }
 310
 311         uri = lib->settings->get_str(lib->settings, "attest.database", NULL);
 312         if (!uri)
 313         {
 314                 fprintf(stderr, "database URI attest.database not set.\n");
 315                 exit(SS_RC_INITIALIZATION_FAILED);
 316         }
 317         attest = attest_db_create(uri);
 318         if (!attest)
 319         {
 320                 exit(SS_RC_INITIALIZATION_FAILED);
 321         }
 322         atexit(cleanup);
 323         libimcv_init();
 324         libpts_init();
 325
 326         do_args(argc, argv);
 327
 328         exit(EXIT_SUCCESS);
 329 }
 330