pam_panic/src/pam_panic/pam_panic_authdevice.c

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/*
FILENAME : pam_panic_authdevice.c
DESCRIPTION : Authenticates against the removable media
AUTHOR : Bandie
DATE : 2018-03-27T02:34:08+02:00
LICENSE : GNU-GPLv3
*/
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#include <stdint.h>
#include <unistd.h>
#ifndef TEST
#include <security/pam_modules.h>
#include <security/pam_ext.h>
#endif
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#include <syslog.h>
#include "pam_panic_reject.h"
#include "pam_panic_authdevice.h"
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int authDevice(pam_handle_t *pamh, char *allowed, char *rejected, char *serious_dev, int8_t bSerious, int8_t bReboot, int8_t bPoweroff){
#ifndef TEST
int8_t counter = 0;
while(access(allowed, F_OK) == -1 && access(rejected, F_OK) == -1){
pam_prompt(pamh, PAM_PROMPT_ECHO_OFF, NULL, ASK);
if(++counter >= 3){
pam_syslog(pamh, LOG_NOTICE, "Couldn't identify any keys. 3 tries.");
return (PAM_MAXTRIES);
}
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}
#endif
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if(access(allowed, F_OK) != -1)
#ifndef TEST
return (PAM_SUCCESS);
#else
return 0;
#endif
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if(access(rejected, F_OK) != -1)
#ifndef TEST
return reject(serious_dev, bSerious, bReboot, bPoweroff);
#else
return 99;
#endif
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#ifndef TEST
return (PAM_MAXTRIES);
#else
return 1;
#endif
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}