X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=extensions%2Flibip6t_rt.c;fp=extensions%2Flibip6t_rt.c;h=0000000000000000000000000000000000000000;hb=f81615a1b6e71d36b4f49a38c04805cc52a146c2;hp=b5f54eee0d9838ae8cddbae698c539b29e81aaf1;hpb=38258638166a4aee377b55922610aa57c410e6f9;p=iptables.git

diff --git a/extensions/libip6t_rt.c b/extensions/libip6t_rt.c
deleted file mode 100644
index b5f54ee..0000000
--- a/extensions/libip6t_rt.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/* Shared library add-on to ip6tables to add Routing header support. */
-#include <stdio.h>
-#include <netdb.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
-#include <errno.h>
-#include <ip6tables.h>
-/*#include <linux/in6.h>*/
-#include <linux/netfilter_ipv6/ip6t_rt.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <arpa/inet.h>
-                                        
-/*#define DEBUG	1*/
-
-/* Function which prints out usage message. */
-static void rt_help(void)
-{
-	printf(
-"rt match options:\n"
-" --rt-type [!] type            match the type\n"
-" --rt-segsleft [!] num[:num]   match the Segments Left field (range)\n"
-" --rt-len [!] length           total length of this header\n"
-" --rt-0-res                    check the reserved filed, too (type 0)\n"
-" --rt-0-addrs ADDR[,ADDR...]   Type=0 addresses (list, max: %d)\n"
-" --rt-0-not-strict             List of Type=0 addresses not a strict list\n",
-IP6T_RT_HOPS);
-}
-
-static const struct option rt_opts[] = {
-	{ "rt-type", 1, NULL, '1' },
-	{ "rt-segsleft", 1, NULL, '2' },
-	{ "rt-len", 1, NULL, '3' },
-	{ "rt-0-res", 0, NULL, '4' },
-	{ "rt-0-addrs", 1, NULL, '5' },
-	{ "rt-0-not-strict", 0, NULL, '6' },
-	{ .name = NULL }
-};
-
-static u_int32_t
-parse_rt_num(const char *idstr, const char *typestr)
-{
-	unsigned long int id;
-	char* ep;
-
-	id =  strtoul(idstr,&ep,0) ;
-
-	if ( idstr == ep ) {
-		exit_error(PARAMETER_PROBLEM,
-			   "RT no valid digits in %s `%s'", typestr, idstr);
-	}
-	if ( id == ULONG_MAX  && errno == ERANGE ) {
-		exit_error(PARAMETER_PROBLEM,
-			   "%s `%s' specified too big: would overflow",
-			   typestr, idstr);
-	}	
-	if ( *idstr != '\0'  && *ep != '\0' ) {
-		exit_error(PARAMETER_PROBLEM,
-			   "RT error parsing %s `%s'", typestr, idstr);
-	}
-	return (u_int32_t) id;
-}
-
-static void
-parse_rt_segsleft(const char *idstring, u_int32_t *ids)
-{
-	char *buffer;
-	char *cp;
-
-	buffer = strdup(idstring);
-	if ((cp = strchr(buffer, ':')) == NULL)
-		ids[0] = ids[1] = parse_rt_num(buffer,"segsleft");
-	else {
-		*cp = '\0';
-		cp++;
-
-		ids[0] = buffer[0] ? parse_rt_num(buffer,"segsleft") : 0;
-		ids[1] = cp[0] ? parse_rt_num(cp,"segsleft") : 0xFFFFFFFF;
-	}
-	free(buffer);
-}
-
-static char *
-addr_to_numeric(const struct in6_addr *addrp)
-{
-	static char buf[50+1];
-	return (char *)inet_ntop(AF_INET6, addrp, buf, sizeof(buf));
-}
-
-static struct in6_addr *
-numeric_to_addr(const char *num)
-{
-	static struct in6_addr ap;
-	int err;
-
-	if ((err=inet_pton(AF_INET6, num, &ap)) == 1)
-		return &ap;
-#ifdef DEBUG
-	fprintf(stderr, "\nnumeric2addr: %d\n", err);
-#endif
-        exit_error(PARAMETER_PROBLEM, "bad address: %s", num);
-
-	return (struct in6_addr *)NULL;
-}
-
-
-static int
-parse_addresses(const char *addrstr, struct in6_addr *addrp)
-{
-        char *buffer, *cp, *next;
-        unsigned int i;
-	
-	buffer = strdup(addrstr);
-        if (!buffer) exit_error(OTHER_PROBLEM, "strdup failed");
-			
-        for (cp=buffer, i=0; cp && i<IP6T_RT_HOPS; cp=next,i++)
-        {
-                next=strchr(cp, ',');
-                if (next) *next++='\0';
-		memcpy(&(addrp[i]), numeric_to_addr(cp), sizeof(struct in6_addr));
-#if DEBUG
-		printf("addr str: %s\n", cp);
-		printf("addr ip6: %s\n", addr_to_numeric((numeric_to_addr(cp))));
-		printf("addr [%d]: %s\n", i, addr_to_numeric(&(addrp[i])));
-#endif
-	}
-        if (cp) exit_error(PARAMETER_PROBLEM, "too many addresses specified");
-
-	free(buffer);
-
-#if DEBUG
-	printf("addr nr: %d\n", i);
-#endif
-
-	return i;
-}
-
-/* Initialize the match. */
-static void rt_init(struct xt_entry_match *m)
-{
-	struct ip6t_rt *rtinfo = (struct ip6t_rt *)m->data;
-
-	rtinfo->rt_type = 0x0L;
-	rtinfo->segsleft[0] = 0x0L;
-	rtinfo->segsleft[1] = 0xFFFFFFFF;
-	rtinfo->hdrlen = 0;
-	rtinfo->flags = 0;
-	rtinfo->invflags = 0;
-	rtinfo->addrnr = 0;
-}
-
-/* Function which parses command options; returns true if it
-   ate an option */
-static int rt_parse(int c, char **argv, int invert, unsigned int *flags,
-                    const void *entry, struct xt_entry_match **match)
-{
-	struct ip6t_rt *rtinfo = (struct ip6t_rt *)(*match)->data;
-
-	switch (c) {
-	case '1':
-		if (*flags & IP6T_RT_TYP)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-type' allowed");
-		check_inverse(optarg, &invert, &optind, 0);
-		rtinfo->rt_type = parse_rt_num(argv[optind-1], "type");
-		if (invert)
-			rtinfo->invflags |= IP6T_RT_INV_TYP;
-		rtinfo->flags |= IP6T_RT_TYP;
-		*flags |= IP6T_RT_TYP;
-		break;
-	case '2':
-		if (*flags & IP6T_RT_SGS)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-segsleft' allowed");
-		check_inverse(optarg, &invert, &optind, 0);
-		parse_rt_segsleft(argv[optind-1], rtinfo->segsleft);
-		if (invert)
-			rtinfo->invflags |= IP6T_RT_INV_SGS;
-		rtinfo->flags |= IP6T_RT_SGS;
-		*flags |= IP6T_RT_SGS;
-		break;
-	case '3':
-		if (*flags & IP6T_RT_LEN)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-len' allowed");
-		check_inverse(optarg, &invert, &optind, 0);
-		rtinfo->hdrlen = parse_rt_num(argv[optind-1], "length");
-		if (invert)
-			rtinfo->invflags |= IP6T_RT_INV_LEN;
-		rtinfo->flags |= IP6T_RT_LEN;
-		*flags |= IP6T_RT_LEN;
-		break;
-	case '4':
-		if (*flags & IP6T_RT_RES)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-0-res' allowed");
-		if ( !(*flags & IP6T_RT_TYP) || (rtinfo->rt_type != 0) || (rtinfo->invflags & IP6T_RT_INV_TYP) )
-			exit_error(PARAMETER_PROBLEM,
-				   "`--rt-type 0' required before `--rt-0-res'");
-		rtinfo->flags |= IP6T_RT_RES;
-		*flags |= IP6T_RT_RES;
-		break;
-	case '5':
-		if (*flags & IP6T_RT_FST)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-0-addrs' allowed");
-		if ( !(*flags & IP6T_RT_TYP) || (rtinfo->rt_type != 0) || (rtinfo->invflags & IP6T_RT_INV_TYP) )
-			exit_error(PARAMETER_PROBLEM,
-				   "`--rt-type 0' required before `--rt-0-addrs'");
-		check_inverse(optarg, &invert, &optind, 0);
-		if (invert)
-			exit_error(PARAMETER_PROBLEM,
-				   " '!' not allowed with `--rt-0-addrs'");
-		rtinfo->addrnr = parse_addresses(argv[optind-1], rtinfo->addrs);
-		rtinfo->flags |= IP6T_RT_FST;
-		*flags |= IP6T_RT_FST;
-		break;
-	case '6':
-		if (*flags & IP6T_RT_FST_NSTRICT)
-			exit_error(PARAMETER_PROBLEM,
-				   "Only one `--rt-0-not-strict' allowed");
-		if ( !(*flags & IP6T_RT_FST) )
-			exit_error(PARAMETER_PROBLEM,
-				   "`--rt-0-addr ...' required before `--rt-0-not-strict'");
-		rtinfo->flags |= IP6T_RT_FST_NSTRICT;
-		*flags |= IP6T_RT_FST_NSTRICT;
-		break;
-	default:
-		return 0;
-	}
-
-	return 1;
-}
-
-static void
-print_nums(const char *name, u_int32_t min, u_int32_t max,
-	    int invert)
-{
-	const char *inv = invert ? "!" : "";
-
-	if (min != 0 || max != 0xFFFFFFFF || invert) {
-		printf("%s", name);
-		if (min == max) {
-			printf(":%s", inv);
-			printf("%u", min);
-		} else {
-			printf("s:%s", inv);
-			printf("%u",min);
-			printf(":");
-			printf("%u",max);
-		}
-		printf(" ");
-	}
-}
-
-static void
-print_addresses(unsigned int addrnr, struct in6_addr *addrp)
-{
-	unsigned int i;
-
-	for(i=0; i<addrnr; i++){
-		printf("%s%c", addr_to_numeric(&(addrp[i])), (i!=addrnr-1)?',':' ');
-	}
-}
-
-/* Prints out the union ip6t_matchinfo. */
-static void rt_print(const void *ip, const struct xt_entry_match *match,
-                     int numeric)
-{
-	const struct ip6t_rt *rtinfo = (struct ip6t_rt *)match->data;
-
-	printf("rt ");
-	if (rtinfo->flags & IP6T_RT_TYP)
-	    printf("type:%s%d ", rtinfo->invflags & IP6T_RT_INV_TYP ? "!" : "",
-		    rtinfo->rt_type);
-	print_nums("segsleft", rtinfo->segsleft[0], rtinfo->segsleft[1],
-		    rtinfo->invflags & IP6T_RT_INV_SGS);
-	if (rtinfo->flags & IP6T_RT_LEN) {
-		printf("length");
-		printf(":%s", rtinfo->invflags & IP6T_RT_INV_LEN ? "!" : "");
-		printf("%u", rtinfo->hdrlen);
-		printf(" ");
-	}
-	if (rtinfo->flags & IP6T_RT_RES) printf("reserved ");
-	if (rtinfo->flags & IP6T_RT_FST) printf("0-addrs ");
-	print_addresses(rtinfo->addrnr, (struct in6_addr *)rtinfo->addrs);
-	if (rtinfo->flags & IP6T_RT_FST_NSTRICT) printf("0-not-strict ");
-	if (rtinfo->invflags & ~IP6T_RT_INV_MASK)
-		printf("Unknown invflags: 0x%X ",
-		       rtinfo->invflags & ~IP6T_RT_INV_MASK);
-}
-
-/* Saves the union ip6t_matchinfo in parsable form to stdout. */
-static void rt_save(const void *ip, const struct xt_entry_match *match)
-{
-	const struct ip6t_rt *rtinfo = (struct ip6t_rt *)match->data;
-
-	if (rtinfo->flags & IP6T_RT_TYP) {
-		printf("--rt-type %s%u ", 
-			(rtinfo->invflags & IP6T_RT_INV_TYP) ? "! " : "", 
-			rtinfo->rt_type);
-	}
-
-	if (!(rtinfo->segsleft[0] == 0
-	    && rtinfo->segsleft[1] == 0xFFFFFFFF)) {
-		printf("--rt-segsleft %s", 
-			(rtinfo->invflags & IP6T_RT_INV_SGS) ? "! " : "");
-		if (rtinfo->segsleft[0]
-		    != rtinfo->segsleft[1])
-			printf("%u:%u ",
-			       rtinfo->segsleft[0],
-			       rtinfo->segsleft[1]);
-		else
-			printf("%u ",
-			       rtinfo->segsleft[0]);
-	}
-
-	if (rtinfo->flags & IP6T_RT_LEN) {
-		printf("--rt-len %s%u ", 
-			(rtinfo->invflags & IP6T_RT_INV_LEN) ? "! " : "", 
-			rtinfo->hdrlen);
-	}
-
-	if (rtinfo->flags & IP6T_RT_RES) printf("--rt-0-res ");
-	if (rtinfo->flags & IP6T_RT_FST) printf("--rt-0-addrs ");
-	print_addresses(rtinfo->addrnr, (struct in6_addr *)rtinfo->addrs);
-	if (rtinfo->flags & IP6T_RT_FST_NSTRICT) printf("--rt-0-not-strict ");
-
-}
-
-static struct xtables_match rt_mt6_reg = {
-	.name		= "rt",
-	.version	= XTABLES_VERSION,
-	.family		= PF_INET6,
-	.size		= XT_ALIGN(sizeof(struct ip6t_rt)),
-	.userspacesize	= XT_ALIGN(sizeof(struct ip6t_rt)),
-	.help		= rt_help,
-	.init		= rt_init,
-	.parse		= rt_parse,
-	.print		= rt_print,
-	.save		= rt_save,
-	.extra_opts	= rt_opts,
-};
-
-void
-_init(void)
-{
-	xtables_register_match(&rt_mt6_reg);
-}