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Diffstat (limited to 'usr.sbin/ppp/filter.h')
| -rw-r--r-- | usr.sbin/ppp/filter.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/usr.sbin/ppp/filter.h b/usr.sbin/ppp/filter.h deleted file mode 100644 index ce67420..0000000 --- a/usr.sbin/ppp/filter.h +++ /dev/null @@ -1,101 +0,0 @@ -/*- - * Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org> - * based on work by Toshiharu OHNO <tony-o@iij.ad.jp> - * Internet Initiative Japan, Inc (IIJ) - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * $FreeBSD$ - */ - -/* Operations - f_srcop, f_dstop */ -#define OP_NONE 0 -#define OP_EQ 1 -#define OP_GT 2 -#define OP_LT 3 - -/* srctype or dsttype */ -#define T_ADDR 0 -#define T_MYADDR 1 -#define T_MYADDR6 2 -#define T_HISADDR 3 -#define T_HISADDR6 4 -#define T_DNS0 5 -#define T_DNS1 6 - -/* - * There's a struct filterent for each possible filter rule. The - * layout is designed to minimise size (there are 4 * MAXFILTERS of - * them) - which is also conveniently a power of 2 (32 bytes) on - * architectures where sizeof(int)==4 (this makes indexing faster). - * - * Note that there are four free bits in the initial word for future - * extensions. - */ -struct filterent { - int f_proto; /* Protocol: getprotoby*() */ - unsigned f_action : 8; /* Filtering action: goto or A_... */ - unsigned f_srcop : 2; /* Source port operation: OP_... */ - unsigned f_dstop : 2; /* Destination port operation: OP_... */ - unsigned f_srctype : 3; /* T_ value of src */ - unsigned f_dsttype : 3; /* T_ value of dst */ - unsigned f_estab : 1; /* Check TCP ACK bit */ - unsigned f_syn : 1; /* Check TCP SYN bit */ - unsigned f_finrst : 1; /* Check TCP FIN/RST bits */ - unsigned f_invert : 1; /* true to complement match */ - struct ncprange f_src; /* Source address and mask */ - struct ncprange f_dst; /* Destination address and mask */ - u_short f_srcport; /* Source port, compared with f_srcop */ - u_short f_dstport; /* Destination port, compared with f_dstop */ - unsigned timeout; /* Keep alive value for passed packet */ -}; - -#define MAXFILTERS 40 /* in each filter set */ - -/* f_action values [0..MAXFILTERS) specify the next filter rule, others are: */ -#define A_NONE (MAXFILTERS) -#define A_PERMIT (A_NONE+1) -#define A_DENY (A_PERMIT+1) - -struct filter { - struct filterent rule[MAXFILTERS]; /* incoming packet filter */ - const char *name; - unsigned fragok : 1; - unsigned logok : 1; -}; - -/* Which filter set */ -#define FL_IN 0 -#define FL_OUT 1 -#define FL_DIAL 2 -#define FL_KEEP 3 - -struct ipcp; -struct cmdargs; - -extern int filter_Show(struct cmdargs const *); -extern int filter_Set(struct cmdargs const *); -extern const char * filter_Action2Nam(unsigned); -extern const char *filter_Op2Nam(unsigned); -extern void filter_AdjustAddr(struct filter *, struct ncpaddr *, - struct ncpaddr *, struct in_addr *); |
