#include <u.h>#include <libc.h>#include <ip.h>#include "dat.h"#include "protos.h" typedef struct{	uchar	type;	uchar	conn;	uchar	seq;	uchar	len;}Hdr; enum{	Hsize	= 4,}; enum{	Otype,	Oconn,	Oseq,	Olen,}; static Field p_fields[] ={	{"type",		Fnum,	Otype,		"type",	},	{"conn",		Fnum,	Oconn,		"conn",	},	{"seq",		Fnum,	Oseq,		"seq",	},	{"len",		Fnum,	Olen,		"len",	},	{0}}; static voidp_compile(Filter *f){	if(f->op == '='){		compile_cmp(aoe.name, f, p_fields);		return;	}	sysfatal("unknown aoe field: %s", f->s);} static intp_filter(Filter *f, Msg *m){	Hdr *h; 	if(m->pe - m->ps < Hsize)		return 0; 	h = (Hdr*)m->ps;	m->ps += Hsize; 	switch(f->subop){	case Otype:		return h->type == f->ulv;	case Oconn:		return h->conn = f->ulv;	case Oseq:		return h->seq = f->ulv;	case Olen:		return h->len = f->ulv;	}	return 0;} static char* ttab[] = {	"Tinita",	"Tinitb",	"Tinitc",	"Tdata",	"Tack",	"Tdiscover",	"Toffer",	"Treset",}; static intp_seprint(Msg *m){	char *s, *p, buf[4];	Hdr *h; 	if(m->pe - m->ps < Hsize)		return 0; 	h = (Hdr*)m->ps;	m->ps += Hsize; 	m->pr = nil; 	if(h->type < nelem(ttab))		s = ttab[h->type];	else{		snprint(buf, sizeof buf, "%d", h->type);		s = buf;	} 	p = (char*)m->ps;	m->p = seprint(m->p, m->e, "type=%s conn=%d seq=%d len=%d %.*s",		s, h->conn, h->seq, h->len,		(int)utfnlen(p, h->len), p);	return 0;} Proto cec ={	"cec",	p_compile,	p_filter,	p_seprint,	nil,	nil,	p_fields,	defaultframer,};