/* Process incoming KISS TNC frame */
void
kiss_recv(
struct iface *iface,
struct mbuf **bpp
){
char kisstype;
kisstype = PULLCHAR(bpp);
switch(kisstype & 0xf){
case PARAM_DATA:
ax_recv(iface,bpp);
break;
default:
free_p(bpp);
break;
}
}
/* Encode a packet in SLIP format */
static
struct mbuf *
slip_encode(struct mbuf **bpp)
{
struct mbuf *lbp; /* Mbuf containing line-ready packet */
register uint8 *cp;
int c;
/* Allocate output mbuf that's twice as long as the packet.
* This is a worst-case guess (consider a packet full of FR_ENDs!)
*/
lbp = alloc_mbuf(2*len_p(*bpp) + 2);
if(lbp == NULL){
/* No space; drop */
free_p(bpp);
return NULL;
}
cp = lbp->data;
/* Flush out any line garbage */
*cp++ = FR_END;
/* Copy input to output, escaping special characters */
while((c = PULLCHAR(bpp)) != -1){
switch(c){
case FR_ESC:
*cp++ = FR_ESC;
*cp++ = T_FR_ESC;
break;
case FR_END:
*cp++ = FR_ESC;
*cp++ = T_FR_END;
break;
default:
*cp++ = c;
}
}
*cp++ = FR_END;
lbp->cnt = cp - lbp->data;
return lbp;
}
/* Dump an mbuf in ascii */
static void
ascii_dump(
FILE *fp,
struct mbuf **bpp)
{
int c;
uint tot;
if(bpp == NULL || *bpp == NULL || fp == NULL)
return;
tot = 0;
while((c = PULLCHAR(bpp)) != -1){
if((tot % 64) == 0)
fprintf(fp,"%04x ",tot);
putc(isprint(c) ? c : '.',fp);
if((++tot % 64) == 0)
fprintf(fp,"\n");
}
if((tot % 64) != 0)
fprintf(fp,"\n");
}
/* Process remote command */
static void
uremote(
struct iface *iface,
struct udp_cb *up,
int cnt)
{
struct mbuf *bp;
struct socket fsock;
char command;
int32 addr;
recv_udp(up,&fsock,&bp);
command = PULLCHAR(&bp);
switch(command & 0xff) {
case SYS__EXIT:
if(chkrpass(bp) == 0) {
logmsg(NULL,"%s - Remote exit PASSWORD FAIL",
pinet_udp(&fsock));
} else {
logmsg(NULL,"%s - Remote exit PASSWORD OK",
pinet_udp(&fsock));
main_exit = 1;
}
break;
case KICK__ME:
if(len_p(bp) >= sizeof(int32))
addr = pull32(&bp);
else
addr = fsock.address;
kick(addr);
/*** smtptick((void *)addr); ***/
break;
}
free_p(&bp);
}
