97
97
static plugin *plugin_list = NULL;
99
/* Gets a existing plugin based on name,
99
/* Gets an 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){
182
static bool add_environment(plugin *p, const char *def, bool replace){
187
187
size_t namelen = (size_t)(strchrnul(def, '=') - def);
188
188
/* Search for this environment variable */
189
189
for(char **e = p->environ; *e != NULL; e++){
190
if(strncmp(*e, def, namelen+1) == 0){
191
/* Refuse to add an existing variable */
190
if(strncmp(*e, def, namelen + 1) == 0){
191
/* It already exists */
193
char *new = realloc(*e, strlen(def) + 1);
247
255
/* Prints out a password to stdout */
248
256
bool print_out_password(const char *buffer, size_t length){
250
if(length>0 and buffer[length-1] == '\n'){
253
258
for(size_t written = 0; written < length; written += (size_t)ret){
254
259
ret = TEMP_FAILURE_RETRY(write(STDOUT_FILENO, buffer + written,
255
260
length - written));
336
341
{ .name = "global-options", .key = 'g',
337
342
.arg = "OPTION[,OPTION[,...]]",
338
343
.doc = "Options passed to all plugins" },
339
{ .name = "global-env", .key = 'e',
344
{ .name = "global-env", .key = 'G',
340
345
.arg = "VAR=value",
341
346
.doc = "Environment variable passed to all plugins" },
342
347
{ .name = "options-for", .key = 'o',
343
348
.arg = "PLUGIN:OPTION[,OPTION[,...]]",
344
349
.doc = "Options passed only to specified plugin" },
345
{ .name = "env-for", .key = 'f',
350
{ .name = "env-for", .key = 'E',
346
351
.arg = "PLUGIN:ENV=value",
347
352
.doc = "Environment variable passed to specified plugin" },
348
353
{ .name = "disable", .key = 'd',
350
355
.doc = "Disable a specific plugin", .group = 1 },
356
{ .name = "enable", .key = 'e',
358
.doc = "Enable a specific plugin", .group = 1 },
351
359
{ .name = "plugin-dir", .key = 128,
352
360
.arg = "DIRECTORY",
353
361
.doc = "Specify a different plugin directory", .group = 2 },
368
376
error_t parse_opt (int key, char *arg, __attribute__((unused))
369
377
struct argp_state *state) {
370
/* Get the INPUT argument from `argp_parse', which we know is a
371
pointer to our plugin list pointer. */
373
379
case 'g': /* --global-options */
374
380
if (arg != NULL){
393
399
if(envdef == NULL){
396
if(not add_environment(getplugin(NULL), envdef)){
402
if(not add_environment(getplugin(NULL), envdef, true)){
397
403
perror("add_environment");
401
407
case 'o': /* --options-for */
402
408
if (arg != NULL){
403
409
char *p_name = strsep(&arg, ":");
404
if(p_name[0] == '\0'){
410
if(p_name[0] == '\0' or arg == NULL){
407
413
char *opt = strsep(&arg, ":");
414
if(opt[0] == '\0' or opt == NULL){
413
while((p = strsep(&opt, ",")) != NULL){
417
if(not add_argument(getplugin(p_name), p)){
418
perror("add_argument");
419
return ARGP_ERR_UNKNOWN;
418
while((p = strsep(&opt, ",")) != NULL){
422
if(not add_argument(getplugin(p_name), p)){
423
perror("add_argument");
424
return ARGP_ERR_UNKNOWN;
425
case 'f': /* --env-for */
429
case 'E': /* --env-for */
439
if(not add_environment(getplugin(p_name), envdef)){
443
if(not add_environment(getplugin(p_name), envdef, true)){
440
444
perror("add_environment");
485
struct argp argp = { .options = options, .parser = parse_opt,
486
.args_doc = "[+PLUS_SEPARATED_OPTIONS]",
495
/* This option parser is the same as parse_opt() above, except it
496
ignores everything but the --config-file option. */
497
error_t parse_opt_config_file (int key, char *arg,
498
__attribute__((unused))
499
struct argp_state *state) {
501
case 'g': /* --global-options */
502
case 'G': /* --global-env */
503
case 'o': /* --options-for */
504
case 'E': /* --env-for */
505
case 'd': /* --disable */
506
case 'e': /* --enable */
507
case 128: /* --plugin-dir */
509
case 129: /* --config-file */
510
argfile = strdup(arg);
515
case 130: /* --userid */
516
case 131: /* --groupid */
517
case 132: /* --debug */
522
return ARGP_ERR_UNKNOWN;
527
struct argp argp = { .options = options,
528
.parser = parse_opt_config_file,
487
530
.doc = "Mandos plugin runner -- Run plugins" };
489
ret = argp_parse (&argp, argc, argv, 0, 0, NULL);
532
/* Parse using the parse_opt_config_file in order to get the custom
533
config file location, if any. */
534
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
490
535
if (ret == ARGP_ERR_UNKNOWN){
491
536
fprintf(stderr, "Unknown error while parsing arguments\n");
492
537
exitstatus = EXIT_FAILURE;
496
/* Opens the configfile if aviable */
541
/* Reset to the normal argument parser */
542
argp.parser = parse_opt;
544
/* Open the configfile if available */
497
545
if (argfile == NULL){
498
546
conffp = fopen(AFILE, "r");
565
613
/* If there was any arguments from configuration file,
566
614
pass them to parser as command arguments */
567
615
if(custom_argv != NULL){
568
ret = argp_parse (&argp, custom_argc, custom_argv, 0, 0, NULL);
616
ret = argp_parse (&argp, custom_argc, custom_argv, ARGP_IN_ORDER,
569
618
if (ret == ARGP_ERR_UNKNOWN){
570
619
fprintf(stderr, "Unknown error while parsing arguments\n");
571
620
exitstatus = EXIT_FAILURE;
625
/* Parse actual command line arguments, to let them override the
627
ret = argp_parse (&argp, argc, argv, ARGP_IN_ORDER, 0, NULL);
628
if (ret == ARGP_ERR_UNKNOWN){
629
fprintf(stderr, "Unknown error while parsing arguments\n");
630
exitstatus = EXIT_FAILURE;
577
635
for(plugin *p = plugin_list; p != NULL; p=p->next){
578
636
fprintf(stderr, "Plugin: %s has %d arguments\n",
687
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
745
if(plugindir == NULL){
746
ret = asprintf(&filename, PDIR "/%s", dirst->d_name);
748
ret = asprintf(&filename, "%s/%s", plugindir, dirst->d_name);
689
751
perror("asprintf");
733
795
/* Add global environment variables */
734
796
for(char **e = g->environ; *e != NULL; e++){
735
if(not add_environment(p, *e)){
797
if(not add_environment(p, *e, false)){
736
798
perror("add_environment");
744
806
if(p->environ[0] != NULL){
745
807
for(char **e = environ; *e != NULL; e++){
746
char *copy = strdup(*e);
751
if(not add_environment(p, copy)){
808
if(not add_environment(p, *e, false)){
752
809
perror("add_environment");
986
1043
fprintf(stderr, "Going to fallback mode using getpass(3)\n");
987
1044
char *passwordbuffer = getpass("Password: ");
988
bret = print_out_password(passwordbuffer, strlen(passwordbuffer));
1045
size_t len = strlen(passwordbuffer);
1046
/* Strip trailing newline */
1047
if(len > 0 and passwordbuffer[len-1] == '\n'){
1048
passwordbuffer[len-1] = '\0'; /* not strictly necessary */
1051
bret = print_out_password(passwordbuffer, len);
990
1053
perror("print_out_password");
991
1054
exitstatus = EXIT_FAILURE;