static void print_tunnel(struct ip6_tnl_parm2 *p)
{
char s1[1024];
char s2[1024];
/* Do not use format_host() for local addr,
* symbolic name will not be useful.
*/
printf("%s: %s/ipv6 remote %s local %s",
p->name,
tnl_strproto(p->proto),
format_host_r(AF_INET6, 16, &p->raddr, s1, sizeof(s1)),
rt_addr_n2a_r(AF_INET6, 16, &p->laddr, s2, sizeof(s2)));
if (p->link) {
const char *n = ll_index_to_name(p->link);
if (n)
printf(" dev %s", n);
}
if (p->flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
printf(" encaplimit none");
else
printf(" encaplimit %u", p->encap_limit);
printf(" hoplimit %u", p->hop_limit);
if (p->flags & IP6_TNL_F_USE_ORIG_TCLASS)
printf(" tclass inherit");
else {
__u32 val = ntohl(p->flowinfo & IP6_FLOWINFO_TCLASS);
printf(" tclass 0x%02x", (__u8)(val >> 20));
}
if (p->flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
printf(" flowlabel inherit");
else
printf(" flowlabel 0x%05x", ntohl(p->flowinfo & IP6_FLOWINFO_FLOWLABEL));
printf(" (flowinfo 0x%08x)", ntohl(p->flowinfo));
if (p->flags & IP6_TNL_F_RCV_DSCP_COPY)
printf(" dscp inherit");
if (p->proto == IPPROTO_GRE) {
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.", _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_);
}
}
const char *format_host(int af, int len, const void *addr)
{
static char buf[256];
return format_host_r(af, len, addr, buf, 256);
}
static void print_tunnel(const void *t)
{
const struct ip_tunnel_parm *p = t;
struct ip_tunnel_6rd ip6rd = {};
char s1[1024];
char s2[1024];
/* 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_r(AF_INET, 4, &p->iph.daddr, s1, sizeof(s1)) : "any",
p->iph.saddr ? rt_addr_n2a_r(AF_INET, 4, &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;
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 < ARRAY_SIZE(prl); 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));
}
}
}
if (p->link) {
const char *n = ll_index_to_name(p->link);
if (n)
printf(" dev %s", n);
}
if (p->iph.ttl)
printf(" ttl %u", 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),
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.", _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_);
}