132 lines
2.1 KiB
C
132 lines
2.1 KiB
C
#include <errno.h>
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#include "conn.h"
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#include "cw.h"
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#include "log.h"
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#include "dbg.h"
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#include "sock.h"
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#include "timer.h"
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int conn_send_msg(struct conn * conn, uint8_t *rawmsg)
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{
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int packetlen = cw_get_hdr_msg_total_len(rawmsg);
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cw_dbg_msg(DBG_MSG_OUT, conn,rawmsg, packetlen,(struct sockaddr*)&conn->addr);
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/* Zyxel doesn't count msg element length from
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behind seqnum */
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if (conn->capwap_mode == CW_MODE_ZYXEL){
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// XXX val-=3;
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}
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uint8_t * ptr = rawmsg;
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int fragoffset = 0;
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int hlen = cw_get_hdr_hlen(rawmsg)*4;
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int mtu = conn->mtu;
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while (packetlen>mtu){
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cw_set_hdr_flags(rawmsg,CW_FLAG_HDR_F,1);
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cw_put_dword(ptr+4, conn->fragid<<16 | fragoffset<<3 );
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cw_dbg_pkt(DBG_PKT_OUT,conn,ptr,mtu,(struct sockaddr*)&conn->addr);
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if (conn->write(conn,ptr,mtu)<0)
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return -1;
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// XXX Fragmentation stuff..
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ptr +=mtu-hlen;
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fragoffset+=(mtu-hlen)/8;
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packetlen-=mtu-hlen;
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}
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if (fragoffset)
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cw_set_hdr_flags(rawmsg,CW_FLAG_HDR_F | CW_FLAG_HDR_L,1);
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else
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cw_set_hdr_flags(rawmsg,CW_FLAG_HDR_F,0);
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cw_put_dword(ptr+4, conn->fragid<<16 | fragoffset<<3 );
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cw_dbg_pkt(DBG_PKT_OUT,conn,ptr,packetlen,(struct sockaddr*)&conn->addr);
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return conn->write(conn,ptr,packetlen-0);
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}
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int cw_send_request(struct conn *conn,int msg_id)
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{
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cw_init_request(conn, msg_id);
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if ( cw_put_msg(conn, conn->req_buffer) == -1 ){
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errno=ENOMSG;
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return -1;
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}
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conn_send_msg(conn, conn->req_buffer);
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int i;
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int rc=-1;
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for (i=0; i<conn->max_retransmit && rc<0; i++){
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if ( i>0 ){
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cw_log(LOG_WARNING,"Retransmitting request ... %d",i);
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}
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time_t timer = cw_timer_start(conn->retransmit_interval);
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while (!cw_timer_timeout(timer) && rc<0){
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rc =cw_read_messages(conn);
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if(rc<0){
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if (errno!=EAGAIN)
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break;
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}
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}
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if (rc<0){
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if(errno!=EAGAIN)
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break;
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}
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}
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if ( rc <0 && errno != EAGAIN) {
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cw_log(LOG_ERR,"Can't read from %s: %s",sock_addr2str(&conn->addr),strerror(errno));
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}
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if ( rc <0 && errno == EAGAIN) {
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errno=ETIMEDOUT;
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rc=-1;
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}
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return rc;
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}
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// XXX find a better name for this function
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int cw_send_custom_request_2(struct conn *conn,int msg_id)
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{
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return 0;
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}
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