static void print_tunnel(struct ip6_tnl_parm *p)
{
char remote[64];
char local[64];
inet_ntop(AF_INET6, &p->raddr, remote, sizeof(remote));
inet_ntop(AF_INET6, &p->laddr, local, sizeof(local));
printf("%s: %s/ipv6 remote %s local %s",
p->name, tnl_strproto(p->proto), remote, local);
if (p->link) {
char *n = tnl_ioctl_get_ifname(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(" tc inherit");
else {
__u32 val = ntohl(p->flowinfo & IP6_FLOWINFO_TCLASS);
printf(" tc 0x%02x", (__u8)(val >> 20));
}
if (p->flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
printf(" fl inherit");
else
printf(" fl 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");
}
static void print_tunnel(struct ip_tunnel_parm *p)
{
char s1[1024];
char s2[1024];
char s3[64];
char s4[64];
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");
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_);
}
static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
char s1[1024];
char s2[64];
const char *local = "any";
const char *remote = "any";
unsigned iflags = 0;
unsigned oflags = 0;
if (!tb)
return;
if (tb[IFLA_GRE_REMOTE]) {
unsigned addr = *(__u32 *)RTA_DATA(tb[IFLA_GRE_REMOTE]);
if (addr)
remote = format_host(AF_INET, 4, &addr, s1, sizeof(s1));
}
fprintf(f, "remote %s ", remote);
if (tb[IFLA_GRE_LOCAL]) {
unsigned addr = *(__u32 *)RTA_DATA(tb[IFLA_GRE_LOCAL]);
if (addr)
local = format_host(AF_INET, 4, &addr, s1, sizeof(s1));
}
fprintf(f, "local %s ", local);
if (tb[IFLA_GRE_LINK] && *(__u32 *)RTA_DATA(tb[IFLA_GRE_LINK])) {
unsigned link = *(__u32 *)RTA_DATA(tb[IFLA_GRE_LINK]);
char *n = tnl_ioctl_get_ifname(link);
if (n)
fprintf(f, "dev %s ", n);
else
fprintf(f, "dev %u ", link);
}
if (tb[IFLA_GRE_TTL] && *(__u8 *)RTA_DATA(tb[IFLA_GRE_TTL]))
fprintf(f, "ttl %d ", *(__u8 *)RTA_DATA(tb[IFLA_GRE_TTL]));
else
fprintf(f, "ttl inherit ");
if (tb[IFLA_GRE_TOS] && *(__u8 *)RTA_DATA(tb[IFLA_GRE_TOS])) {
int tos = *(__u8 *)RTA_DATA(tb[IFLA_GRE_TOS]);
fputs("tos ", f);
if (tos == 1)
fputs("inherit ", f);
else
fprintf(f, "0x%x ", tos);
}
if (tb[IFLA_GRE_PMTUDISC] &&
!*(__u8 *)RTA_DATA(tb[IFLA_GRE_PMTUDISC]))
fputs("nopmtudisc ", f);
if (tb[IFLA_GRE_IFLAGS])
iflags = *(__u16 *)RTA_DATA(tb[IFLA_GRE_IFLAGS]);
if (tb[IFLA_GRE_OFLAGS])
oflags = *(__u16 *)RTA_DATA(tb[IFLA_GRE_OFLAGS]);
if (iflags & GRE_KEY && tb[IFLA_GRE_IKEY] &&
*(__u32 *)RTA_DATA(tb[IFLA_GRE_IKEY])) {
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2));
fprintf(f, "ikey %s ", s2);
}
if (oflags & GRE_KEY && tb[IFLA_GRE_OKEY] &&
*(__u32 *)RTA_DATA(tb[IFLA_GRE_OKEY])) {
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2));
fprintf(f, "ikey %s ", s2);
}
if (iflags & GRE_SEQ)
fputs("iseq ", f);
if (oflags & GRE_SEQ)
fputs("oseq ", f);
if (iflags & GRE_CSUM)
fputs("icsum ", f);
if (oflags & GRE_CSUM)
fputs("ocsum ", f);
}
static void print_tunnel(struct ip_tunnel_parm *p)
{
char s1[1024];
char s2[1024];
char s3[64];
char s4[64];
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->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) {
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");
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_);
}
