97
97
static plugin *plugin_list = NULL;
99
/* Gets an existing plugin based on name,
99
/* Gets a existing plugin based on name,
100
100
or if none is found, creates a new one */
101
101
static plugin *getplugin(char *name){
102
102
/* Check for exiting plugin with that name */
181
181
/* Add to a plugin's environment */
182
static bool add_environment(plugin *p, const char *def, bool replace){
182
static bool add_environment(plugin *p, const char *def){
186
/* namelen = length of name of environment variable */
187
size_t namelen = (size_t)(strchrnul(def, '=') - def);
188
/* Search for this environment variable */
189
for(char **e = p->environ; *e != NULL; e++){
190
if(strncmp(*e, def, namelen + 1) == 0){
191
/* It already exists */
193
char *new = realloc(*e, strlen(def) + 1);
203
186
return add_to_char_array(def, &(p->environ), &(p->envc));
255
238
/* Prints out a password to stdout */
256
239
bool print_out_password(const char *buffer, size_t length){
241
if(length>0 and buffer[length-1] == '\n'){
258
244
for(size_t written = 0; written < length; written += (size_t)ret){
259
245
ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
260
246
length - written));
341
327
{ .name = "global-options", .key = 'g',
342
328
.arg = "OPTION[,OPTION[,...]]",
343
329
.doc = "Options passed to all plugins" },
344
{ .name = "global-env", .key = 'G',
330
{ .name = "global-envs", .key = 'e',
345
331
.arg = "VAR=value",
346
332
.doc = "Environment variable passed to all plugins" },
347
333
{ .name = "options-for", .key = 'o',
348
334
.arg = "PLUGIN:OPTION[,OPTION[,...]]",
349
335
.doc = "Options passed only to specified plugin" },
350
{ .name = "env-for", .key = 'E',
336
{ .name = "envs-for", .key = 'f',
351
337
.arg = "PLUGIN:ENV=value",
352
338
.doc = "Environment variable passed to specified plugin" },
353
339
{ .name = "disable", .key = 'd',
355
341
.doc = "Disable a specific plugin", .group = 1 },
356
{ .name = "enable", .key = 'e',
358
.doc = "Enable a specific plugin", .group = 1 },
359
342
{ .name = "plugin-dir", .key = 128,
360
343
.arg = "DIRECTORY",
361
344
.doc = "Specify a different plugin directory", .group = 2 },
376
error_t parse_opt (int key, char *arg, __attribute__((unused))
377
struct argp_state *state) {
359
error_t parse_opt (int key, char *arg, __attribute__((unused)) struct argp_state *state) {
360
/* Get the INPUT argument from `argp_parse', which we know is a
361
pointer to our plugin list pointer. */
379
363
case 'g': /* --global-options */
380
364
if (arg != NULL){
393
case 'G': /* --global-env */
377
case 'e': /* --global-envs */
397
if(not add_environment(getplugin(NULL), arg, true)){
398
perror("add_environment");
382
char *envdef = strdup(arg);
386
if(not add_environment(getplugin(NULL), envdef)){
387
perror("add_environment");
401
391
case 'o': /* --options-for */
402
392
if (arg != NULL){
403
393
char *p_name = strsep(&arg, ":");
404
if(p_name[0] == '\0' or arg == NULL){
394
if(p_name[0] == '\0'){
407
397
char *opt = strsep(&arg, ":");
408
if(opt[0] == '\0' or opt == NULL){
412
while((p = strsep(&opt, ",")) != NULL){
416
if(not add_argument(getplugin(p_name), p)){
417
perror("add_argument");
418
return ARGP_ERR_UNKNOWN;
403
while((p = strsep(&opt, ",")) != NULL){
407
if(not add_argument(getplugin(p_name), p)){
408
perror("add_argument");
409
return ARGP_ERR_UNKNOWN;
423
case 'E': /* --env-for */
415
case 'f': /* --envs-for */
429
421
if(envdef == NULL){
433
if(not add_environment(getplugin(arg), envdef+1, true)){
424
char *p_name = strndup(arg, (size_t) (envdef-arg));
429
if(not add_environment(getplugin(p_name), envdef)){
434
430
perror("add_environment");
444
440
p->disabled = true;
447
case 'e': /* --enable */
449
plugin *p = getplugin(arg);
451
return ARGP_ERR_UNKNOWN;
456
443
case 128: /* --plugin-dir */
458
444
plugindir = strdup(arg);
459
445
if(plugindir == NULL){
460
446
perror("strdup");
463
449
case 129: /* --config-file */
464
/* This is already done by parse_opt_config_file() */
450
argfile = strdup(arg);
466
455
case 130: /* --userid */
467
456
uid = (uid_t)strtol(arg, NULL, 10);
475
464
case ARGP_KEY_ARG:
476
/* Cryptsetup always passes an argument, which is an empty
477
string if "none" was specified in /etc/crypttab. So if
478
argument was empty, we ignore it silently. */
480
fprintf(stderr, "Ignoring unknown argument \"%s\"\n", arg);
486
return ARGP_ERR_UNKNOWN;
491
/* This option parser is the same as parse_opt() above, except it
492
ignores everything but the --config-file option. */
493
error_t parse_opt_config_file (int key, char *arg,
494
__attribute__((unused))
495
struct argp_state *state) {
497
case 'g': /* --global-options */
498
case 'G': /* --global-env */
499
case 'o': /* --options-for */
500
case 'E': /* --env-for */
501
case 'd': /* --disable */
502
case 'e': /* --enable */
503
case 128: /* --plugin-dir */
505
case 129: /* --config-file */
507
argfile = strdup(arg);
512
case 130: /* --userid */
513
case 131: /* --groupid */
514
case 132: /* --debug */
519
return ARGP_ERR_UNKNOWN;
524
struct argp argp = { .options = options,
525
.parser = parse_opt_config_file,
465
fprintf(stderr, "Ignoring unknown argument \"%s\"\n", arg);
470
return ARGP_ERR_UNKNOWN;
475
struct argp argp = { .options = options, .parser = parse_opt,
476
.args_doc = "[+PLUS_SEPARATED_OPTIONS]",
527
477
.doc = "Mandos plugin runner -- Run plugins" };
529
/* Parse using the parse_opt_config_file in order to get the custom
530
config file location, if any. */
531
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
479
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
532
480
if (ret == ARGP_ERR_UNKNOWN){
533
481
fprintf(stderr, "Unknown error while parsing arguments\n");
534
482
exitstatus = EXIT_FAILURE;
538
/* Reset to the normal argument parser */
539
argp.parser = parse_opt;
541
/* Open the configfile if available */
486
/* Opens the configfile if aviable */
542
487
if (argfile == NULL){
543
488
conffp = fopen(AFILE, "r");
562
507
custom_argv[0] = argv[0];
563
508
custom_argv[1] = NULL;
565
/* for each line in the config file, strip whitespace and ignore
510
/* for each line in the config file, strip whitespace and ignore commented text */
568
512
sret = getline(&org_line, &size, conffp);
610
554
/* If there was any arguments from configuration file,
611
555
pass them to parser as command arguments */
612
556
if(custom_argv != NULL){
613
ret = argp_parse (&argp, custom_argc, custom_argv, ARGP_IN_ORDER,
557
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, NULL);
615
558
if (ret == ARGP_ERR_UNKNOWN){
616
559
fprintf(stderr, "Unknown error while parsing arguments\n");
617
560
exitstatus = EXIT_FAILURE;
622
/* Parse actual command line arguments, to let them override the
624
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
625
if (ret == ARGP_ERR_UNKNOWN){
626
fprintf(stderr, "Unknown error while parsing arguments\n");
627
exitstatus = EXIT_FAILURE;
632
566
for(plugin *p = plugin_list; p != NULL; p=p->next){
633
567
fprintf(stderr, "Plugin: %s has %d arguments\n",
742
if(plugindir == NULL){
743
ret = asprintf(&filename, PDIR "/%s", dirst->d_name);
745
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
676
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
748
678
perror("asprintf");
792
722
/* Add global environment variables */
793
723
for(char **e = g->environ; *e != NULL; e++){
794
if(not add_environment(p, *e, false)){
724
if(not add_environment(p, *e)){
795
725
perror("add_environment");
803
733
if(p->environ[0] != NULL){
804
734
for(char **e = environ; *e != NULL; e++){
805
if(not add_environment(p, *e, false)){
735
char *copy = strdup(*e);
740
if(not add_environment(p, copy)){
806
741
perror("add_environment");
939
874
/* OK, now either a process completed, or something can be read
940
875
from one of them */
941
for(plugin *proc = plugin_list; proc != NULL;){
876
for(plugin *proc = plugin_list; proc != NULL; proc = proc->next){
942
877
/* Is this process completely done? */
943
878
if(proc->eof and proc->completed){
944
879
/* Only accept the plugin output if it exited cleanly */
1046
975
fprintf(stderr, "Going to fallback mode using getpass(3)\n");
1047
976
char *passwordbuffer = getpass("Password: ");
1048
size_t len = strlen(passwordbuffer);
1049
/* Strip trailing newline */
1050
if(len > 0 and passwordbuffer[len-1] == '\n'){
1051
passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1054
bret = print_out_password(passwordbuffer, len);
977
bret = print_out_password(passwordbuffer, strlen(passwordbuffer));
1056
979
perror("print_out_password");
1057
980
exitstatus = EXIT_FAILURE;