actube/src/cw/send.c

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#include <errno.h>
#include "conn.h"
#include "cw.h"
#include "log.h"
#include "dbg.h"
#include "sock.h"
#include "timer.h"
int conn_send_data_msg(struct conn * conn, uint8_t *rawmsg,int len)
{
int packetlen = len;
int fragoffset;
int hlen;
uint8_t * ptr;
int mtu;
cw_dbg_msg(DBG_MSG_OUT, conn,rawmsg, packetlen,(struct sockaddr*)&conn->addr);
ptr = rawmsg;
fragoffset = 0;
hlen = cw_get_hdr_hlen(rawmsg)*4;
mtu = conn->mtu;
while (packetlen>mtu){
cw_set_hdr_flags(rawmsg,CAPWAP_FLAG_HDR_F,1);
cw_set_dword(ptr+4, conn->fragid<<16 | fragoffset<<3 );
cw_dbg_pkt(DBG_PKT_OUT,conn,ptr,mtu,(struct sockaddr*)&conn->addr);
/* if (conn->write_data(conn,ptr,mtu)<0)*/
return -1;
/* // XXX Fragmentation stuff..*/
ptr +=mtu-hlen;
fragoffset+=(mtu-hlen)/8;
packetlen-=mtu-hlen;
}
if (fragoffset)
cw_set_hdr_flags(rawmsg,CAPWAP_FLAG_HDR_F | CAPWAP_FLAG_HDR_L,1);
else
cw_set_hdr_flags(rawmsg,CAPWAP_FLAG_HDR_F,0);
cw_set_dword(ptr+4, conn->fragid<<16 | fragoffset<<3 );
cw_dbg_pkt(DBG_PKT_OUT,conn,ptr,packetlen,(struct sockaddr*)&conn->addr);
/*// return conn->write_data(conn,ptr,packetlen-0);*/
return 0;
}
int cw_send_request(struct conn *conn,int msg_id)
{
time_t timer;
int i;
int rc;
char sock_buf[SOCK_ADDR_BUFSIZE];
cw_init_request(conn, msg_id);
if ( cw_put_msg(conn, conn->req_buffer) == -1 ){
errno=ENOMSG;
return -1;
}
conn_send_msg(conn, conn->req_buffer);
rc=-1;
for (i=0; i<conn->max_retransmit && rc<0; i++){
if ( i>0 ){
cw_log(LOG_WARNING,"Retransmitting request ... %d",i);
}
timer = cw_timer_start(conn->retransmit_interval);
while (!cw_timer_timeout(timer) && rc<0){
rc =cw_read_messages(conn);
if(rc<0){
if (errno!=EAGAIN)
break;
}
}
if (rc<0){
if(errno!=EAGAIN)
break;
}
}
if ( rc <0 && errno != EAGAIN) {
cw_log(LOG_ERR,"Can't read from %s: %s",sock_addr2str(&conn->addr,sock_buf),strerror(errno));
}
if ( rc <0 && errno == EAGAIN) {
errno=ETIMEDOUT;
rc=-1;
}
return rc;
}
/*// XXX find a better name for this function */
int cw_send_custom_request_2(struct conn *conn,int msg_id)
{
return 0;
}