481 lines
11 KiB
C
481 lines
11 KiB
C
/* $NetBSD: printfr.c,v 1.1.1.9 2010/04/17 20:45:57 darrenr Exp $ */
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/*
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* Copyright (C) 2000-2006 by Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*
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* Id: printfr.c,v 1.43.2.21 2009/12/27 06:58:06 darrenr Exp
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*/
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#include "ipf.h"
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static void printaddr(int, int, char *, u_32_t *, u_32_t *);
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static void printaddr(v, type, ifname, addr, mask)
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int v, type;
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char *ifname;
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u_32_t *addr, *mask;
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{
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char *suffix;
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switch (type)
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{
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case FRI_BROADCAST :
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suffix = "bcast";
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break;
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case FRI_DYNAMIC :
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printf("%s", ifname);
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printmask(mask);
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suffix = NULL;
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break;
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case FRI_NETWORK :
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suffix = "net";
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break;
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case FRI_NETMASKED :
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suffix = "netmasked";
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break;
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case FRI_PEERADDR :
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suffix = "peer";
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break;
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case FRI_LOOKUP :
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suffix = NULL;
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printlookup((i6addr_t *)addr, (i6addr_t *)mask);
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break;
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case FRI_NORMAL :
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printhostmask(v, addr, mask);
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suffix = NULL;
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break;
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default :
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printf("<%d>", type);
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printmask(mask);
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suffix = NULL;
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break;
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}
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if (suffix != NULL) {
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printf("%s/%s", ifname, suffix);
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}
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}
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void printlookup(addr, mask)
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i6addr_t *addr, *mask;
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{
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switch (addr->iplookuptype)
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{
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case IPLT_POOL :
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printf("pool/");
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break;
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case IPLT_HASH :
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printf("hash/");
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break;
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default :
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printf("lookup(%x)=", addr->iplookuptype);
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break;
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}
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printf("%u", addr->iplookupnum);
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if (mask->iplookupptr == NULL)
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printf("(!)");
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}
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/*
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* print the filter structure in a useful way
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*/
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void printfr(fp, iocfunc)
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struct frentry *fp;
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ioctlfunc_t iocfunc;
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{
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struct protoent *p;
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u_short sec[2];
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u_32_t type;
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u_char *t;
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char *s;
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int pr;
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pr = -2;
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type = fp->fr_type & ~FR_T_BUILTIN;
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if ((fp->fr_type & FR_T_BUILTIN) != 0)
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printf("# Builtin: ");
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if (fp->fr_collect != 0)
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printf("%u ", fp->fr_collect);
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if (fp->fr_type == FR_T_CALLFUNC) {
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;
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} else if (fp->fr_func != NULL) {
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printf("call");
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if ((fp->fr_flags & FR_CALLNOW) != 0)
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printf(" now");
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s = kvatoname(fp->fr_func, iocfunc);
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printf(" %s/%u", s ? s : "?", fp->fr_arg);
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} else if (FR_ISPASS(fp->fr_flags))
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printf("pass");
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else if (FR_ISBLOCK(fp->fr_flags)) {
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printf("block");
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} else if ((fp->fr_flags & FR_LOGMASK) == FR_LOG) {
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printlog(fp);
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} else if (FR_ISACCOUNT(fp->fr_flags))
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printf("count");
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else if (FR_ISAUTH(fp->fr_flags))
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printf("auth");
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else if (FR_ISPREAUTH(fp->fr_flags))
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printf("preauth");
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else if (FR_ISNOMATCH(fp->fr_flags))
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printf("nomatch");
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else if (FR_ISSKIP(fp->fr_flags))
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printf("skip %u", fp->fr_arg);
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else {
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printf("%x", fp->fr_flags);
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}
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if (fp->fr_flags & FR_RETICMP) {
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if ((fp->fr_flags & FR_RETMASK) == FR_FAKEICMP)
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printf(" return-icmp-as-dest");
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else if ((fp->fr_flags & FR_RETMASK) == FR_RETICMP)
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printf(" return-icmp");
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if (fp->fr_icode) {
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if (fp->fr_icode <= MAX_ICMPCODE)
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printf("(%s)",
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icmpcodes[(int)fp->fr_icode]);
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else
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printf("(%d)", fp->fr_icode);
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}
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} else if ((fp->fr_flags & FR_RETMASK) == FR_RETRST)
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printf(" return-rst");
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if (fp->fr_flags & FR_OUTQUE)
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printf(" out ");
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else
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printf(" in ");
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if (((fp->fr_flags & FR_LOGB) == FR_LOGB) ||
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((fp->fr_flags & FR_LOGP) == FR_LOGP)) {
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printlog(fp);
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putchar(' ');
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}
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if (fp->fr_flags & FR_QUICK)
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printf("quick ");
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if (*fp->fr_ifname) {
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printifname("on ", fp->fr_ifname, fp->fr_ifa);
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if (*fp->fr_ifnames[1] && strcmp(fp->fr_ifnames[1], "*"))
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printifname(",", fp->fr_ifnames[1], fp->fr_ifas[1]);
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putchar(' ');
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}
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if (*fp->fr_dif.fd_ifname && (fp->fr_flags & FR_DUP))
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print_toif("dup-to", &fp->fr_dif);
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if (*fp->fr_tif.fd_ifname)
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print_toif("to", &fp->fr_tif);
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if (*fp->fr_rif.fd_ifname)
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print_toif("reply-to", &fp->fr_rif);
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if (fp->fr_flags & FR_FASTROUTE)
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printf("fastroute ");
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if ((*fp->fr_ifnames[2] && strcmp(fp->fr_ifnames[2], "*")) ||
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(*fp->fr_ifnames[3] && strcmp(fp->fr_ifnames[3], "*"))) {
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if (fp->fr_flags & FR_OUTQUE)
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printf("in-via ");
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else
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printf("out-via ");
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if (*fp->fr_ifnames[2]) {
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printifname("", fp->fr_ifnames[2],
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fp->fr_ifas[2]);
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if (*fp->fr_ifnames[3]) {
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printifname(",", fp->fr_ifnames[3],
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fp->fr_ifas[3]);
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}
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putchar(' ');
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}
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}
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if (type == FR_T_IPF) {
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if (fp->fr_mip.fi_tos)
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printf("tos %#x ", fp->fr_tos);
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if (fp->fr_mip.fi_ttl)
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printf("ttl %d ", fp->fr_ttl);
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if (fp->fr_flx & FI_TCPUDP) {
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printf("proto tcp/udp ");
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pr = -1;
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} else if (fp->fr_mip.fi_p) {
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pr = fp->fr_ip.fi_p;
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p = getprotobynumber(pr);
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printf("proto ");
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printproto(p, pr, NULL);
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putchar(' ');
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}
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}
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if (type == FR_T_NONE) {
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printf("all");
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} else if (type == FR_T_IPF) {
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printf("from %s", fp->fr_flags & FR_NOTSRCIP ? "!" : "");
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printaddr(fp->fr_v, fp->fr_satype, fp->fr_ifname,
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&fp->fr_src.s_addr, &fp->fr_smsk.s_addr);
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if (fp->fr_scmp)
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printportcmp(pr, &fp->fr_tuc.ftu_src);
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printf(" to %s", fp->fr_flags & FR_NOTDSTIP ? "!" : "");
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printaddr(fp->fr_v, fp->fr_datype, fp->fr_ifname,
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&fp->fr_dst.s_addr, &fp->fr_dmsk.s_addr);
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if (fp->fr_dcmp)
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printportcmp(pr, &fp->fr_tuc.ftu_dst);
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if (fp->fr_proto == IPPROTO_ICMP && fp->fr_icmpm) {
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int type = fp->fr_icmp, code;
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type = ntohs(fp->fr_icmp);
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code = type & 0xff;
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type /= 256;
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if (type < (sizeof(icmptypes) / sizeof(char *) - 1) &&
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icmptypes[type])
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printf(" icmp-type %s", icmptypes[type]);
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else
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printf(" icmp-type %d", type);
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if (ntohs(fp->fr_icmpm) & 0xff)
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printf(" code %d", code);
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}
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if ((fp->fr_proto == IPPROTO_TCP) &&
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(fp->fr_tcpf || fp->fr_tcpfm)) {
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printf(" flags ");
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if (fp->fr_tcpf & ~TCPF_ALL)
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printf("0x%x", fp->fr_tcpf);
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else
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for (s = flagset, t = flags; *s; s++, t++)
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if (fp->fr_tcpf & *t)
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(void)putchar(*s);
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if (fp->fr_tcpfm) {
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(void)putchar('/');
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if (fp->fr_tcpfm & ~TCPF_ALL)
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printf("0x%x", fp->fr_tcpfm);
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else
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for (s = flagset, t = flags; *s;
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s++, t++)
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if (fp->fr_tcpfm & *t)
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(void)putchar(*s);
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}
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}
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} else if (type == FR_T_BPFOPC) {
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fakebpf_t *fb;
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int i;
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printf("bpf-v%d { \"", fp->fr_v);
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i = fp->fr_dsize / sizeof(*fb);
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for (fb = fp->fr_data, s = ""; i; i--, fb++, s = " ")
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printf("%s%#x %#x %#x %#x", s, fb->fb_c, fb->fb_t,
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fb->fb_f, fb->fb_k);
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printf("\" }");
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} else if (type == FR_T_COMPIPF) {
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;
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} else if (type == FR_T_CALLFUNC) {
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printf("call function at %p", fp->fr_data);
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} else {
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printf("[unknown filter type %#x]", fp->fr_type);
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}
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if ((type == FR_T_IPF) &&
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((fp->fr_flx & FI_WITH) || (fp->fr_mflx & FI_WITH) ||
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fp->fr_optbits || fp->fr_optmask ||
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fp->fr_secbits || fp->fr_secmask)) {
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char *comma = " ";
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printf(" with");
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if (fp->fr_optbits || fp->fr_optmask ||
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fp->fr_secbits || fp->fr_secmask) {
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sec[0] = fp->fr_secmask;
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sec[1] = fp->fr_secbits;
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if (fp->fr_v == 4)
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optprint(sec, fp->fr_optmask, fp->fr_optbits);
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#ifdef USE_INET6
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else
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optprintv6(sec, fp->fr_optmask,
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fp->fr_optbits);
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#endif
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} else if (fp->fr_mflx & FI_OPTIONS) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_OPTIONS))
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printf("not ");
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printf("ipopts");
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comma = ",";
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}
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if (fp->fr_mflx & FI_SHORT) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_SHORT))
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printf("not ");
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printf("short");
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comma = ",";
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}
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if (fp->fr_mflx & FI_FRAG) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_FRAG))
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printf("not ");
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printf("frag");
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comma = ",";
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}
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if (fp->fr_mflx & FI_FRAGBODY) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_FRAGBODY))
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printf("not ");
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printf("frag-body");
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comma = ",";
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}
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if (fp->fr_mflx & FI_NATED) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_NATED))
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printf("not ");
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printf("nat");
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comma = ",";
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}
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if (fp->fr_mflx & FI_LOWTTL) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_LOWTTL))
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printf("not ");
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printf("lowttl");
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comma = ",";
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}
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if (fp->fr_mflx & FI_BAD) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_BAD))
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printf("not ");
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printf("bad");
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comma = ",";
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}
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if (fp->fr_mflx & FI_BADSRC) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_BADSRC))
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printf("not ");
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printf("bad-src");
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comma = ",";
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}
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if (fp->fr_mflx & FI_BADNAT) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_BADNAT))
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printf("not ");
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printf("bad-nat");
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comma = ",";
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}
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if (fp->fr_mflx & FI_OOW) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_OOW))
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printf("not ");
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printf("oow");
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comma = ",";
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}
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if (fp->fr_mflx & FI_MBCAST) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_MBCAST))
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printf("not ");
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printf("mbcast");
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comma = ",";
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}
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if (fp->fr_mflx & FI_BROADCAST) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_BROADCAST))
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printf("not ");
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printf("bcast");
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comma = ",";
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}
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if (fp->fr_mflx & FI_MULTICAST) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_MULTICAST))
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printf("not ");
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printf("mcast");
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comma = ",";
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}
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if (fp->fr_mflx & FI_STATE) {
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fputs(comma, stdout);
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if (!(fp->fr_flx & FI_STATE))
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printf("not ");
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printf("state");
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comma = ",";
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}
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}
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if (fp->fr_flags & FR_KEEPSTATE) {
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printf(" keep state");
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if ((fp->fr_flags & (FR_STSTRICT|FR_NEWISN|FR_NOICMPERR|FR_STATESYNC)) ||
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(fp->fr_statemax != 0) || (fp->fr_age[0] != 0)) {
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char *comma = "";
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printf(" (");
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if (fp->fr_statemax != 0) {
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printf("limit %u", fp->fr_statemax);
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comma = ",";
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}
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if (fp->fr_flags & FR_STSTRICT) {
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printf("%sstrict", comma);
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comma = ",";
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}
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if (fp->fr_flags & FR_NEWISN) {
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printf("%snewisn", comma);
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comma = ",";
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}
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if (fp->fr_flags & FR_NOICMPERR) {
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printf("%sno-icmp-err", comma);
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comma = ",";
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}
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if (fp->fr_flags & FR_STATESYNC) {
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printf("%ssync", comma);
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comma = ",";
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}
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if (fp->fr_age[0] || fp->fr_age[1])
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printf("%sage %d/%d", comma, fp->fr_age[0],
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fp->fr_age[1]);
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printf(")");
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}
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}
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if (fp->fr_flags & FR_KEEPFRAG) {
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printf(" keep frags");
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if (fp->fr_flags & (FR_FRSTRICT)) {
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printf(" (");
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if (fp->fr_flags & FR_FRSTRICT)
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printf("strict");
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printf(")");
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}
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}
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if (fp->fr_isc != (struct ipscan *)-1) {
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if (fp->fr_isctag[0])
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printf(" scan %s", fp->fr_isctag);
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else
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printf(" scan *");
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}
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if (*fp->fr_grhead != '\0')
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printf(" head %s", fp->fr_grhead);
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if (*fp->fr_group != '\0')
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printf(" group %s", fp->fr_group);
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if (fp->fr_logtag != FR_NOLOGTAG || *fp->fr_nattag.ipt_tag) {
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char *s = "";
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printf(" set-tag(");
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if (fp->fr_logtag != FR_NOLOGTAG) {
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printf("log=%u", fp->fr_logtag);
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s = ", ";
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}
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if (*fp->fr_nattag.ipt_tag) {
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printf("%snat=%-.*s", s, IPFTAG_LEN,
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fp->fr_nattag.ipt_tag);
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}
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printf(")");
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}
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if (fp->fr_pps)
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printf(" pps %d", fp->fr_pps);
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if ((fp->fr_flags & FR_KEEPSTATE) && (opts & OPT_VERBOSE)) {
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printf(" # count %d", fp->fr_statecnt);
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}
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(void)putchar('\n');
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}
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