Bandie/pam_panic
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Fixes #101

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Bandie
2018-12-23 15:27:40 +01:00
parent d8ac2428ff
commit 92fb0420a4
8 changed files with 32 additions and 29 deletions
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20
src/pam_panic/pam_panic.c
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@ -52,26 +52,28 @@ void argSplit(char **some_arg, char **some_temp, const char *arg){
*some_temp = strtok(NULL, "=");
}
void constrPath(char **dst, char **src){
void constrPath(char **dst, char **src, int8_t bGPTOnly){
char tmp[256];
// EFI
// GPT
strcpy(tmp, "/dev/disk/by-partuuid/");
strcat(tmp, *src);
if(access(tmp, F_OK) != -1)
if(access(tmp, F_OK) != -1 || bGPTOnly)
sprintf(*dst, "/dev/disk/by-partuuid/%s", *src);
return;
// MBR
memset(tmp, 0, sizeof tmp);
strcat(tmp, "/dev/disk/by-uuid/");
strcat(tmp, *src);
if(access(tmp, F_OK) != -1)
sprintf(*dst, "/dev/disk/by-uuid/%s", *src);
return;
// Fallback vendor hardware id
else
sprintf(*dst, "/dev/disk/by-id/%s", *src);
sprintf(*dst, "/dev/disk/by-id/%s", *src);
return;
}
@ -160,8 +162,8 @@ PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, cons
// Construct variables from arguments
if(allowed_temp != NULL && rejected_temp != NULL){
constrPath(&rejected, &rejected_temp);
constrPath(&allowed, &allowed_temp);
constrPath(&rejected, &rejected_temp, 1);
constrPath(&allowed, &allowed_temp, 1);
}else{
rejected = NULL;
allowed = NULL;
@ -169,7 +171,7 @@ PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, cons
if(bSerious)
constrPath(&serious_dev, &serious_temp);
constrPath(&serious_dev, &serious_temp, 0);
// Free not needed vars

3
src/pam_panic/pam_panic.h
View File

@ -10,10 +10,11 @@ LICENSE : GNU-GPLv3
#include <security/pam_modules.h>
#include <security/pam_ext.h>
#include <syslog.h>
#include <stdlib.h>
void argSplit(char **some_arg, char **some_temp, const char *arg);
void constrPath(char **dst, char **src);
void constrPath(char **dst, char **src, int8_t bGPTOnly);
PAM_EXTERN int pam_sm_authenticate(pam_handle_t *pamh, int flags, int argc, const char *argv[]);