#include <u.h>
#include <libc.h>
#include <fcall.h>
#include <thread.h>
#include <9p.h>
#include <ip.h>
#include <auth.h>
#include "dat.h"
#include "fns.h"

extern Srv fs;
static char buf[Blen];
static UserPasswd*upwd;
static uchar defmac[6] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x03};

void
usage(void)
{
	fprint(2, "usage: 8021x [-d] [-D] [-T] [-m mtpt] [-t /sys/lib/tls/xxx] [-x /sys/lib/tls/xxx.exclude]\n");
	syslog(0, logname, "usage");
	threadexitsall("usage");
}

void
threadmain(int argc, char *argv[])
{
	char *thumbFile, *thumbFilex, *mtpt;
	Etherstate *e;
	PAEstate *s;
	Phasestate *p;
	Timers *t;

	mtpt = "/net";
	fmtinstall('E', eipfmt);

	thumbFile = nil;
	thumbFilex = nil;
	ARGBEGIN{
	case 'd':
		debug++;
		break;
	case 'D':
		chatty9p++;
		break;
	case 'T':
		debugTLS++;
		break;
	case 'm':
		mtpt = ARGF();
		break;
	case 't':
		thumbFile = EARGF(usage());
		break;
	case 'x':
		thumbFilex = EARGF(usage());
		break;
	}ARGEND;

	logname = "8021x";
	loglog("====== starting =======");
	syslog(0, logname, "starting");
	
	if(mtpt == nil || argc > 0)
		usage();

	if(thumbFilex && !thumbFile)
		logfatal(1, "specifying -x without -t is useless");

	initbufs();
	e = initether();
	p = phasesinit();
	t = initTimers();
	s = init8021x(e, t, p);
	initTTLS(thumbFile, thumbFilex, t);
	initFs();

	if(argc == 0)
		e->dir = "/net/ether0";
	else
		e->dir = argv[0];

	snprint(buf, Blen, "%s!0x888e", e->dir);
	e->fd = dial(buf, 0, 0, &e->cfd);
	if(e->fd < 0)
		logfatal(1, "could not dial %s: %r", buf);

	if (myetheraddr(e->ourmac, e->dir) < 0)
		logfatal(1,  "could not read own ether addres from %s", e->dir);

	upwd = auth_getuserpasswd(auth_getkey, "proto=pass service=8021x-pap");
	if (upwd) {
		myId = upwd->user;
		myPasswd = upwd->passwd;
	} else
		logfatal(1, "cannot get user/passwd");

	// we could try to threadcreate backproc and paeproc
	// (since they are coroutines),
	// such that they are in a single process,
	// as we had them before we turned this into an fs,
	// but then the current process does not exit
	// and things don't work.
	// this may just be because of my limited understanding.

	procrfork(tickproc, t, SMALLSTACK, RFNAMEG|RFNOTEG);
	start8021xprocs(s);
	procrfork(etherproc, e, SMALLSTACK, RFNAMEG|RFNOTEG);

	threadpostmountsrv(&fs, logname, mtpt, MAFTER);
	recv(e->donec, nil);
	threadexits(0);
}