void
process(int fd, int pkt_type)
{
struct sockaddr from;
int fromlen = sizeof (from), cc, omask;
struct ipx *ipxdp = (struct ipx *)packet;
cc = recvfrom(fd, packet, sizeof (packet), 0, &from, &fromlen);
if (cc <= 0) {
if (cc < 0 && errno != EINTR)
syslog(LOG_ERR, "recvfrom: %m");
return;
}
if (tracepackets > 1 && ftrace) {
fprintf(ftrace,"rcv %d bytes on %s ",
cc, ipxdp_ntoa(&ipxdp->ipx_dna));
fprintf(ftrace," from %s\n", ipxdp_ntoa(&ipxdp->ipx_sna));
}
if (noteremoterequests &&
!ipx_neteqnn(ipxdp->ipx_sna.x_net, ipx_zeronet) &&
!ipx_neteq(ipxdp->ipx_sna, ipxdp->ipx_dna))
{
syslog(LOG_ERR,
"net of interface (%s) != net on ether (%s)!\n",
ipxdp_nettoa(ipxdp->ipx_dna.x_net),
ipxdp_nettoa(ipxdp->ipx_sna.x_net));
}
/* We get the IPX header in front of the RIF packet*/
cc -= sizeof (struct ipx);
#define mask(s) (1<<((s)-1))
omask = sigblock(mask(SIGALRM));
switch(pkt_type) {
case SAP_PKT: sap_input(&from, cc);
break;
case RIP_PKT: rip_input(&from, cc);
break;
}
sigsetmask(omask);
}
char *
ipxdp_ntoa(struct ipx_addr *addr)
{
static char buf[100];
sprintf(buf, "%s#%x:%x:%x:%x:%x:%x",
ipxdp_nettoa(addr->x_net),
addr->x_host.c_host[0], addr->x_host.c_host[1],
addr->x_host.c_host[2], addr->x_host.c_host[3],
addr->x_host.c_host[4], addr->x_host.c_host[5]);
return(buf);
}
void
dumppacket(FILE *fd, char *dir, struct sockaddr *source, char *cp, int size)
{
struct rip *msg = (struct rip *)cp;
struct netinfo *n;
struct sockaddr_ipx *who = (struct sockaddr_ipx *)source;
if (msg->rip_cmd && ntohs(msg->rip_cmd) < RIPCMD_MAX)
fprintf(fd, "%s %s %s#%x", ripcmds[ntohs(msg->rip_cmd)],
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
else {
fprintf(fd, "Bad cmd 0x%x %s %s#%x\n", ntohs(msg->rip_cmd),
dir, ipxdp_ntoa(&who->sipx_addr),
ntohs(who->sipx_addr.x_port));
fprintf(fd, "size=%d cp=%p packet=%p\n", size, cp, packet);
return;
}
switch (ntohs(msg->rip_cmd)) {
case RIPCMD_REQUEST:
case RIPCMD_RESPONSE:
fprintf(fd, ":\n");
size -= sizeof (u_short);
n = msg->rip_nets;
for (; size > 0; n++, size -= sizeof (struct netinfo)) {
if (size < sizeof (struct netinfo))
break;
fprintf(fd, "\tnet %s metric %d ticks %d\n",
ipxdp_nettoa(n->rip_dst),
ntohs(n->rip_metric),
ntohs(n->rip_ticks));
}
break;
}
}
