131 lines
2.7 KiB
C
131 lines
2.7 KiB
C
/*
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This file is part of AC-Tube.
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AC-Tube is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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AC-Tube is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <netdb.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include "capwap/capwap.h"
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#include "capwap/capwap_items.h"
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#include "capwap/cw_log.h"
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#include "capwap/wtpinfo.h"
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#include "capwap/acinfo.h"
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#include "capwap/sock.h"
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#include "capwap/cw_util.h"
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#include "wtp.h"
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#include "wtp_conf.h"
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#include "wtp_interface.h"
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#include <stdio.h>
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static int run_discovery(struct conn *conn)
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{
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conn->capwap_state=CW_STATE_DISCOVERY;
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cw_itemstore_set_byte(conn->local,CW_ITEM_DISCOVERY_TYPE,CW_DISCOVERY_TYPE_UNKNOWN);
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cw_init_request(conn,CW_MSG_DISCOVERY_REQUEST);
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cw_put_msg(conn,conn->req_buffer);
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conn_send_msg(conn,conn->req_buffer);
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time_t timer = cw_timer_start(10);
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while (!cw_timer_timeout(timer)
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&& conn->capwap_state == CW_STATE_DISCOVERY) {
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cw_read_messages(conn);
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printf ("Got one annswer\n");
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}
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return 0;
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}
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/**
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* Run discovery for on address (eg broadcast 255.255.255.255)
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*/
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static int cw_run_discovery(struct conn *conn, const char *acaddr)
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{
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/* get addr of destination */
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struct addrinfo hints;
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struct addrinfo * res,*res0;
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memset(&hints,0,sizeof(hints));
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hints.ai_socktype = SOCK_DGRAM;
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hints.ai_family = PF_UNSPEC;
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int rc = getaddrinfo(acaddr,conf_control_port,&hints,&res0);
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if(rc){
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cw_log(LOG_ERR,"Can't connect to AC %s: %s",acaddr,gai_strerror(rc));
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return 0;
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}
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for(res=res0; res; res=res->ai_next)
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{
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int sockfd;
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int opt;
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sockfd=socket(res->ai_family,SOCK_DGRAM,0);
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if (sockfd == -1){
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cw_log(LOG_ERR,"Can't create socket for %s: %s",acaddr,strerror(errno));
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continue;
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}
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opt = 1;
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if (setsockopt(sockfd, SOL_SOCKET, SO_BROADCAST, &opt, sizeof(opt))<0){
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cw_log(LOG_ERR,"Can't set broadcast sockopt");
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}
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sock_set_recvtimeout(sockfd,1);
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sock_set_dontfrag(sockfd,0);
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sock_copyaddr(&conn->addr,res->ai_addr);
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conn->sock=sockfd;
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run_discovery(conn);
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close(sockfd);
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}
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freeaddrinfo(res0);
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return 0;
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}
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int discovery()
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{
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struct conn * conn = get_conn();
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cw_run_discovery(conn,"255.255.255.255");
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return 0;
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}
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