pam_proxy.c

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#include "pam_proxy.h"
 
PAM_EXTERN int pam_sm_setcred( pam_handle_t *pamh, int flags, int argc, const char **argv ) {
    return PAM_SUCCESS;
}
 
PAM_EXTERN int pam_sm_acct_mgmt(pam_handle_t *pamh, int flags, int argc, const char **argv) {
    return PAM_SUCCESS;
}
 
 
PAM_EXTERN int pam_sm_authenticate( pam_handle_t *pamh, int flags,int argc, const char **argv ) {
    int bluetooth_status = PAM_AUTH_ERR;
 
    const char* username;
    char* detected_dev;
 
    FILE *log_fp = NULL;
 
    /*** OPEN LOG FILE ***/
    if (!(log_fp = fopen("/var/log/pam-proxy-auth.log", "a"))) {
        perror("Failed to open file");
    }
    /*********************/
    
    /*** Get Username ***/
    if (pam_get_user(pamh, &username, "Username: ") != PAM_SUCCESS) {
        perror("Could not find username");
        if (log_fp) {
            fprintf(log_fp, "Could not find username\n");
        }
        goto pam_sm_authenticate;
    }
    /*******************/
 
    if (bluetooth_login(log_fp, trusted_dir_path, username, &detected_dev)) {
       if (log_fp) {
            fprintf(log_fp, "Login via Auth Proxy\n");
        }
        exec_deauth(detected_dev, username, log_fp, trusted_dir_path);
        free(detected_dev);
        bluetooth_status = PAM_SUCCESS;
    }
 
pam_sm_authenticate:
 
    if (log_fp) {
        fclose(log_fp);
    }
 
    return bluetooth_status;
}