#include <stdio.h>#include <errno.h>#include <string.h>#include <stdlib.h>#include "drcomd.h"#include "daemon_kernel.h"#include "log.h"int module_start_auth(struct drcom_handle *h){	int sock;	struct drcom_conf *conf = (struct drcom_conf*)h->conf;	struct drcom_session_info *s;	struct conn_param *cp;        struct conn_auth_cmd cmd;	int len, ret;	sock = socket(PF_INET, SOCK_DGRAM, 0);	if (sock < 0){		logerr("socket create failure\n");		return -1;	}	len = sizeof(struct e_address)*conf->except_count+sizeof(struct conn_param);	cp = (struct conn_param *)malloc(len);	if (cp==NULL){		logerr("malloc failure\n");		close(sock);		return -1;	}	strncpy(cp->devname, conf->device, IFNAMSIZ);	cp->e_count = conf->except_count;	memcpy(cp->es, conf->except, cp->e_count*sizeof(struct e_address));        ret = setsockopt(sock, IPPROTO_IP, CONN_SO_SET_PARAMS, cp, len);        if (ret != 0) {                logerr("setsockopt(CONN_SO_SET_PARAMS) failed\n");		close(sock);		free(cp);                return -1;        }	free(cp);	s = drcom_get_session_info(h);        cmd.cmd = CONN_MODE_AUTH;	cmd.pid = getpid();	cmd.autologout = conf->autologout;	memcpy(cmd.auth_data, s->auth, sizeof(struct drcom_auth));        ret = setsockopt(sock, IPPROTO_IP, CONN_SO_SET_AUTH_CMD, &cmd, sizeof(struct conn_auth_cmd));        if (ret != 0) {                logerr("CONN_SO_SET_AUTH_CMD failed\n");		close(sock);                return -1;        }	close(sock);	loginfo("daemon: Starting authentication...\n");	return 0;}int module_stop_auth(void){	int sock;        struct conn_auth_cmd cmd;	int ret;	sock = socket(PF_INET, SOCK_DGRAM, 0);	if (sock < 0){		logerr("socket create failure\n");		return -1;	}	cmd.cmd = CONN_MODE_NONE;        ret = setsockopt(sock, IPPROTO_IP, CONN_SO_SET_AUTH_CMD, &cmd, sizeof(struct conn_auth_cmd));        if (ret != 0) {                logerr("CONN_SO_SET_AUTH_CMD failed\n");		close(sock);                return -1;        }	close(sock);	loginfo("daemon: Stopping authentication...\n");	return 0;}