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List:       ipfilter
Subject:    R>Marco Definition(KERNEL)
From:       "Gordon Shiao" <tigershiao1 () hotmail ! com>
Date:       2001-05-29 21:58:57
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If it's loadable kernel modules, a macro definition IPFILTER_LKM is used 
instead...
1. what are those KERNEL definitions designed for?
2. in the OS i'm developing on, KERNEL is used for its kernel code, should I 
change all these KERNEL in ipfilter to another MACRO name?

thanks!!!


>perhaps something to do with loadable kernel modules vs static kernels?
>complete shot in the dark, sorry can't help much more, i'm not much of a
>coder.
>
>-----Original Message-----
>Subject: Macro Definitions(KERNEL)
>
>
>I'm trying to let the code running on a RTOS, it seems I got quite a few
>KERNEL(_KERNEL, _KERNEL_) conflicts, anybody can give me a hand?
>
>just for example, at fil.c, what's the usage of KERNEL here:
>A: ****************************************************************
>#ifndef	_KERNEL
># include "ipf.h"
># include "ipt.h"
>extern	int	opts;
># define	FR_VERBOSE(verb_pr)			verbose verb_pr
># define	FR_DEBUG(verb_pr)			debug verb_pr
># define	IPLLOG(a, c, d, e)		ipllog()
>#else /* #ifndef _KERNEL */
># define	FR_VERBOSE(verb_pr)
># define	FR_DEBUG(verb_pr)
># define	IPLLOG(a, c, d, e)		ipflog(a, c, d, e)
># define	FR_NEWAUTH(m, fi, ip, qif)	fr_newauth((mb_t *)m, fi, ip)
>#endif /* _KERNEL */
>
>B:*******************************************************************
>void	fr_makefrip(hlen, ip, fin)
>int hlen;
>ip_t *ip;
>fr_info_t *fin;
>{
>	u_short optmsk = 0, secmsk = 0, auth = 0;
>	int i, mv, ol, off, p, plen, v;
>	fr_ip_t *fi = &fin->fin_fi;
>	struct optlist *op;
>	u_char *s, opt;
>	tcphdr_t *tcp;
>
>	fin->fin_rev = 0;
>	fin->fin_fr = NULL;
>	fin->fin_tcpf = 0;
>	fin->fin_data[0] = 0;
>	fin->fin_data[1] = 0;
>	fin->fin_rule = -1;
>	fin->fin_group = -1;
>#ifdef	_KERNEL
>	fin->fin_icode = ipl_unreach;
>#endif
>	v = fin->fin_v;
>	fi->fi_v = v;
>
>C:********************************************************************
>static	int	frflushlist __P((int, minor_t, int *, frentry_t **));
>#ifdef	_KERNEL
>static	void	frsynclist __P((frentry_t *));
>#endif
>
>thanks in advance!
>
>Gordon

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