Exemple #1
0
static void print_tunnel(struct ip_tunnel_parm *p)
{
	struct ip_tunnel_6rd ip6rd;
	char s1[1024];
	char s2[1024];

	memset(&ip6rd, 0, sizeof(ip6rd));

	/* Do not use format_host() for local addr,
	 * symbolic name will not be useful.
	 */
	printf("%s: %s/ip  remote %s  local %s ",
	       p->name,
	       tnl_strproto(p->iph.protocol),
	       p->iph.daddr ? format_host(AF_INET, 4, &p->iph.daddr, s1, sizeof(s1))  : "any",
	       p->iph.saddr ? rt_addr_n2a(AF_INET, &p->iph.saddr, s2, sizeof(s2)) : "any");

	if (p->iph.protocol == IPPROTO_IPV6 && (p->i_flags & SIT_ISATAP)) {
		struct ip_tunnel_prl prl[16];
		int i;

		memset(prl, 0, sizeof(prl));
		prl[0].datalen = sizeof(prl) - sizeof(prl[0]);
		prl[0].addr = htonl(INADDR_ANY);

		if (!tnl_prl_ioctl(SIOCGETPRL, p->name, prl))
			for (i = 1; i < sizeof(prl) / sizeof(prl[0]); i++)
		{
			if (prl[i].addr != htonl(INADDR_ANY)) {
				printf(" %s %s ",
					(prl[i].flags & PRL_DEFAULT) ? "pdr" : "pr",
					format_host(AF_INET, 4, &prl[i].addr, s1, sizeof(s1)));
			}
		}
	}

	if (p->link) {
		const char *n = ll_index_to_name(p->link);
		if (n)
			printf(" dev %s ", n);
	}

	if (p->iph.ttl)
		printf(" ttl %d ", p->iph.ttl);
	else
		printf(" ttl inherit ");

	if (p->iph.tos) {
		SPRINT_BUF(b1);
		printf(" tos");
		if (p->iph.tos&1)
			printf(" inherit");
		if (p->iph.tos&~1)
			printf("%c%s ", p->iph.tos&1 ? '/' : ' ',
			       rtnl_dsfield_n2a(p->iph.tos&~1, b1, sizeof(b1)));
	}

	if (!(p->iph.frag_off&htons(IP_DF)))
		printf(" nopmtudisc");

	if (p->iph.protocol == IPPROTO_IPV6 && !tnl_ioctl_get_6rd(p->name, &ip6rd) && ip6rd.prefixlen) {
		printf(" 6rd-prefix %s/%u ",
		       inet_ntop(AF_INET6, &ip6rd.prefix, s1, sizeof(s1)),
		       ip6rd.prefixlen);
		if (ip6rd.relay_prefix) {
			printf("6rd-relay_prefix %s/%u ",
			       format_host(AF_INET, 4, &ip6rd.relay_prefix, s1, sizeof(s1)),
			       ip6rd.relay_prefixlen);
		}
	}

	if ((p->i_flags&GRE_KEY) && (p->o_flags&GRE_KEY) && p->o_key == p->i_key)
		printf(" key %u", ntohl(p->i_key));
	else if ((p->i_flags|p->o_flags)&GRE_KEY) {
		if (p->i_flags&GRE_KEY)
			printf(" ikey %u ", ntohl(p->i_key));
		if (p->o_flags&GRE_KEY)
			printf(" okey %u ", ntohl(p->o_key));
	}

	if (p->i_flags&GRE_SEQ)
		printf("%s  Drop packets out of sequence.\n", _SL_);
	if (p->i_flags&GRE_CSUM)
		printf("%s  Checksum in received packet is required.", _SL_);
	if (p->o_flags&GRE_SEQ)
		printf("%s  Sequence packets on output.", _SL_);
	if (p->o_flags&GRE_CSUM)
		printf("%s  Checksum output packets.", _SL_);
}
static void print_tunnel(struct ip_tunnel_parm *p)
{
#ifndef NO_IPV6
	struct ip_tunnel_6rd ip6rd;
#endif
	char s1[1024];
	char s2[1024];
	char s3[64];
	char s4[64];

#ifndef NO_IPV6
	memset(&ip6rd, 0, sizeof(ip6rd));
#endif
	inet_ntop(AF_INET, &p->i_key, s3, sizeof(s3));
	inet_ntop(AF_INET, &p->o_key, s4, sizeof(s4));

	/* Do not use format_host() for local addr,
	 * symbolic name will not be useful.
	 */
	printf("%s: %s/ip  remote %s  local %s ",
	       p->name,
	       tnl_strproto(p->iph.protocol),
	       p->iph.daddr ? format_host(AF_INET, 4, &p->iph.daddr, s1, sizeof(s1))  : "any",
	       p->iph.saddr ? rt_addr_n2a(AF_INET, 4, &p->iph.saddr, s2, sizeof(s2)) : "any");

	if (p->link) {
		char *n = tnl_ioctl_get_ifname(p->link);
		if (n)
			printf(" dev %s ", n);
	}

	if (p->iph.ttl)
		printf(" ttl %d ", p->iph.ttl);
	else
		printf(" ttl inherit ");

	if (p->iph.tos) {
		SPRINT_BUF(b1);
		printf(" tos");
		if (p->iph.tos&1)
			printf(" inherit");
		if (p->iph.tos&~1)
			printf("%c%s ", p->iph.tos&1 ? '/' : ' ',
			       rtnl_dsfield_n2a(p->iph.tos&~1, b1, sizeof(b1)));
	}

	if (!(p->iph.frag_off&htons(IP_DF)))
		printf(" nopmtudisc");

#ifndef NO_IPV6
	if (p->iph.protocol == IPPROTO_IPV6 && !tnl_ioctl_get_6rd(p->name, &ip6rd) && ip6rd.prefixlen) {
		printf(" 6rd-prefix %s/%u ",
		       inet_ntop(AF_INET6, &ip6rd.prefix, s1, sizeof(s1)),
		       ip6rd.prefixlen);
		if (ip6rd.relay_prefix) {
			printf("6rd-relay_prefix %s/%u ",
			       format_host(AF_INET, 4, &ip6rd.relay_prefix, s1, sizeof(s1)),
			       ip6rd.relay_prefixlen);
		}
	}
#endif

	if ((p->i_flags&GRE_KEY) && (p->o_flags&GRE_KEY) && p->o_key == p->i_key)
		printf(" key %s", s3);
	else if ((p->i_flags|p->o_flags)&GRE_KEY) {
		if (p->i_flags&GRE_KEY)
			printf(" ikey %s ", s3);
		if (p->o_flags&GRE_KEY)
			printf(" okey %s ", s4);
	}

	if (p->i_flags&GRE_SEQ)
		printf("%s  Drop packets out of sequence.\n", _SL_);
	if (p->i_flags&GRE_CSUM)
		printf("%s  Checksum in received packet is required.", _SL_);
	if (p->o_flags&GRE_SEQ)
		printf("%s  Sequence packets on output.", _SL_);
	if (p->o_flags&GRE_CSUM)
		printf("%s  Checksum output packets.", _SL_);
}