mirror of
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git
synced 2024-11-16 06:25:35 +08:00
a0638e18b2
- any ipv6 tunnel mode (proto == 0) could not be set due to incomplete set of cases in do_add, do_del. - vti6 logic was inverted: it was using "ip6_vti0" basedev UNLESS mode is set to vti6. We don't need a switch by p.proto in do_add()/do_del(): it already exists in parse_args(). So if parse_args() call was successful, no need to check tunnel mode again. Signed-off-by: Alexey Andriyanov <alan@al-an.info>
521 lines
15 KiB
C
521 lines
15 KiB
C
/*
|
|
* Copyright (C)2006 USAGI/WIDE Project
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, see <http://www.gnu.org/licenses>.
|
|
*/
|
|
/*
|
|
* Author:
|
|
* Masahide NAKAMURA @USAGI
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <arpa/inet.h>
|
|
#include <sys/ioctl.h>
|
|
#include <linux/ip.h>
|
|
#include <linux/if.h>
|
|
#include <linux/if_arp.h>
|
|
#include <linux/if_tunnel.h>
|
|
#include <linux/ip6_tunnel.h>
|
|
|
|
#include "utils.h"
|
|
#include "tunnel.h"
|
|
#include "ip_common.h"
|
|
|
|
#define IP6_FLOWINFO_TCLASS htonl(0x0FF00000)
|
|
#define IP6_FLOWINFO_FLOWLABEL htonl(0x000FFFFF)
|
|
|
|
#define DEFAULT_TNL_HOP_LIMIT (64)
|
|
|
|
static void usage(void) __attribute__((noreturn));
|
|
|
|
static void usage(void)
|
|
{
|
|
fprintf(stderr, "Usage: ip -f inet6 tunnel { add | change | del | show } [ NAME ]\n");
|
|
fprintf(stderr, " [ mode { ip6ip6 | ipip6 | ip6gre | vti6 | any } ]\n");
|
|
fprintf(stderr, " [ remote ADDR local ADDR ] [ dev PHYS_DEV ]\n");
|
|
fprintf(stderr, " [ encaplimit ELIM ]\n");
|
|
fprintf(stderr ," [ hoplimit TTL ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
|
|
fprintf(stderr, " [ dscp inherit ]\n");
|
|
fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
|
|
fprintf(stderr, "\n");
|
|
fprintf(stderr, "Where: NAME := STRING\n");
|
|
fprintf(stderr, " ADDR := IPV6_ADDRESS\n");
|
|
fprintf(stderr, " ELIM := { none | 0..255 }(default=%d)\n",
|
|
IPV6_DEFAULT_TNL_ENCAP_LIMIT);
|
|
fprintf(stderr, " TTL := 0..255 (default=%d)\n",
|
|
DEFAULT_TNL_HOP_LIMIT);
|
|
fprintf(stderr, " TCLASS := { 0x0..0xff | inherit }\n");
|
|
fprintf(stderr, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
|
|
fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
|
|
exit(-1);
|
|
}
|
|
|
|
static void print_tunnel(struct ip6_tnl_parm2 *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) {
|
|
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_);
|
|
}
|
|
}
|
|
|
|
static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
|
|
{
|
|
int count = 0;
|
|
char medium[IFNAMSIZ];
|
|
|
|
memset(medium, 0, sizeof(medium));
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "mode") == 0) {
|
|
NEXT_ARG();
|
|
if (strcmp(*argv, "ipv6/ipv6") == 0 ||
|
|
strcmp(*argv, "ip6ip6") == 0)
|
|
p->proto = IPPROTO_IPV6;
|
|
else if (strcmp(*argv, "vti6") == 0) {
|
|
p->proto = IPPROTO_IPV6;
|
|
p->i_flags |= VTI_ISVTI;
|
|
} else if (strcmp(*argv, "ip/ipv6") == 0 ||
|
|
strcmp(*argv, "ipv4/ipv6") == 0 ||
|
|
strcmp(*argv, "ipip6") == 0 ||
|
|
strcmp(*argv, "ip4ip6") == 0)
|
|
p->proto = IPPROTO_IPIP;
|
|
else if (strcmp(*argv, "ip6gre") == 0 ||
|
|
strcmp(*argv, "gre/ipv6") == 0)
|
|
p->proto = IPPROTO_GRE;
|
|
else if (strcmp(*argv, "any/ipv6") == 0 ||
|
|
strcmp(*argv, "any") == 0)
|
|
p->proto = 0;
|
|
else {
|
|
fprintf(stderr,"Unknown tunnel mode \"%s\"\n", *argv);
|
|
exit(-1);
|
|
}
|
|
} else if (strcmp(*argv, "remote") == 0) {
|
|
inet_prefix raddr;
|
|
NEXT_ARG();
|
|
get_prefix(&raddr, *argv, preferred_family);
|
|
if (raddr.family == AF_UNSPEC)
|
|
invarg("\"remote\" address family is AF_UNSPEC", *argv);
|
|
memcpy(&p->raddr, &raddr.data, sizeof(p->raddr));
|
|
} else if (strcmp(*argv, "local") == 0) {
|
|
inet_prefix laddr;
|
|
NEXT_ARG();
|
|
get_prefix(&laddr, *argv, preferred_family);
|
|
if (laddr.family == AF_UNSPEC)
|
|
invarg("\"local\" address family is AF_UNSPEC", *argv);
|
|
memcpy(&p->laddr, &laddr.data, sizeof(p->laddr));
|
|
} else if (strcmp(*argv, "dev") == 0) {
|
|
NEXT_ARG();
|
|
strncpy(medium, *argv, IFNAMSIZ - 1);
|
|
} else if (strcmp(*argv, "encaplimit") == 0) {
|
|
NEXT_ARG();
|
|
if (strcmp(*argv, "none") == 0) {
|
|
p->flags |= IP6_TNL_F_IGN_ENCAP_LIMIT;
|
|
} else {
|
|
__u8 uval;
|
|
if (get_u8(&uval, *argv, 0) < -1)
|
|
invarg("invalid ELIM", *argv);
|
|
p->encap_limit = uval;
|
|
p->flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT;
|
|
}
|
|
} else if (strcmp(*argv, "hoplimit") == 0 ||
|
|
strcmp(*argv, "ttl") == 0 ||
|
|
strcmp(*argv, "hlim") == 0) {
|
|
__u8 uval;
|
|
NEXT_ARG();
|
|
if (get_u8(&uval, *argv, 0))
|
|
invarg("invalid TTL", *argv);
|
|
p->hop_limit = uval;
|
|
} else if (strcmp(*argv, "tclass") == 0 ||
|
|
strcmp(*argv, "tc") == 0 ||
|
|
strcmp(*argv, "tos") == 0 ||
|
|
matches(*argv, "dsfield") == 0) {
|
|
__u8 uval;
|
|
NEXT_ARG();
|
|
p->flowinfo &= ~IP6_FLOWINFO_TCLASS;
|
|
if (strcmp(*argv, "inherit") == 0)
|
|
p->flags |= IP6_TNL_F_USE_ORIG_TCLASS;
|
|
else {
|
|
if (get_u8(&uval, *argv, 16))
|
|
invarg("invalid TClass", *argv);
|
|
p->flowinfo |= htonl((__u32)uval << 20) & IP6_FLOWINFO_TCLASS;
|
|
p->flags &= ~IP6_TNL_F_USE_ORIG_TCLASS;
|
|
}
|
|
} else if (strcmp(*argv, "flowlabel") == 0 ||
|
|
strcmp(*argv, "fl") == 0) {
|
|
__u32 uval;
|
|
NEXT_ARG();
|
|
p->flowinfo &= ~IP6_FLOWINFO_FLOWLABEL;
|
|
if (strcmp(*argv, "inherit") == 0)
|
|
p->flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL;
|
|
else {
|
|
if (get_u32(&uval, *argv, 16))
|
|
invarg("invalid Flowlabel", *argv);
|
|
if (uval > 0xFFFFF)
|
|
invarg("invalid Flowlabel", *argv);
|
|
p->flowinfo |= htonl(uval) & IP6_FLOWINFO_FLOWLABEL;
|
|
p->flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL;
|
|
}
|
|
} else if (strcmp(*argv, "dscp") == 0) {
|
|
NEXT_ARG();
|
|
if (strcmp(*argv, "inherit") != 0)
|
|
invarg("not inherit", *argv);
|
|
p->flags |= IP6_TNL_F_RCV_DSCP_COPY;
|
|
} else if (strcmp(*argv, "key") == 0) {
|
|
unsigned uval;
|
|
NEXT_ARG();
|
|
p->i_flags |= GRE_KEY;
|
|
p->o_flags |= GRE_KEY;
|
|
if (strchr(*argv, '.'))
|
|
p->i_key = p->o_key = get_addr32(*argv);
|
|
else {
|
|
if (get_unsigned(&uval, *argv, 0) < 0) {
|
|
fprintf(stderr, "invalid value of \"key\"\n");
|
|
exit(-1);
|
|
}
|
|
p->i_key = p->o_key = htonl(uval);
|
|
}
|
|
} else if (strcmp(*argv, "ikey") == 0) {
|
|
unsigned uval;
|
|
NEXT_ARG();
|
|
p->i_flags |= GRE_KEY;
|
|
if (strchr(*argv, '.'))
|
|
p->i_key = get_addr32(*argv);
|
|
else {
|
|
if (get_unsigned(&uval, *argv, 0)<0) {
|
|
fprintf(stderr, "invalid value of \"ikey\"\n");
|
|
exit(-1);
|
|
}
|
|
p->i_key = htonl(uval);
|
|
}
|
|
} else if (strcmp(*argv, "okey") == 0) {
|
|
unsigned uval;
|
|
NEXT_ARG();
|
|
p->o_flags |= GRE_KEY;
|
|
if (strchr(*argv, '.'))
|
|
p->o_key = get_addr32(*argv);
|
|
else {
|
|
if (get_unsigned(&uval, *argv, 0)<0) {
|
|
fprintf(stderr, "invalid value of \"okey\"\n");
|
|
exit(-1);
|
|
}
|
|
p->o_key = htonl(uval);
|
|
}
|
|
} else if (strcmp(*argv, "seq") == 0) {
|
|
p->i_flags |= GRE_SEQ;
|
|
p->o_flags |= GRE_SEQ;
|
|
} else if (strcmp(*argv, "iseq") == 0) {
|
|
p->i_flags |= GRE_SEQ;
|
|
} else if (strcmp(*argv, "oseq") == 0) {
|
|
p->o_flags |= GRE_SEQ;
|
|
} else if (strcmp(*argv, "csum") == 0) {
|
|
p->i_flags |= GRE_CSUM;
|
|
p->o_flags |= GRE_CSUM;
|
|
} else if (strcmp(*argv, "icsum") == 0) {
|
|
p->i_flags |= GRE_CSUM;
|
|
} else if (strcmp(*argv, "ocsum") == 0) {
|
|
p->o_flags |= GRE_CSUM;
|
|
} else {
|
|
if (strcmp(*argv, "name") == 0) {
|
|
NEXT_ARG();
|
|
}
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
if (p->name[0])
|
|
duparg2("name", *argv);
|
|
strncpy(p->name, *argv, IFNAMSIZ - 1);
|
|
if (cmd == SIOCCHGTUNNEL && count == 0) {
|
|
struct ip6_tnl_parm2 old_p;
|
|
memset(&old_p, 0, sizeof(old_p));
|
|
if (tnl_get_ioctl(*argv, &old_p))
|
|
return -1;
|
|
*p = old_p;
|
|
}
|
|
}
|
|
count++;
|
|
argc--; argv++;
|
|
}
|
|
if (medium[0]) {
|
|
p->link = ll_name_to_index(medium);
|
|
if (p->link == 0)
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void ip6_tnl_parm_init(struct ip6_tnl_parm2 *p, int apply_default)
|
|
{
|
|
memset(p, 0, sizeof(*p));
|
|
p->proto = IPPROTO_IPV6;
|
|
if (apply_default) {
|
|
p->hop_limit = DEFAULT_TNL_HOP_LIMIT;
|
|
p->encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* @p1: user specified parameter
|
|
* @p2: database entry
|
|
*/
|
|
static int ip6_tnl_parm_match(const struct ip6_tnl_parm2 *p1,
|
|
const struct ip6_tnl_parm2 *p2)
|
|
{
|
|
return ((!p1->link || p1->link == p2->link) &&
|
|
(!p1->name[0] || strcmp(p1->name, p2->name) == 0) &&
|
|
(memcmp(&p1->laddr, &in6addr_any, sizeof(p1->laddr)) == 0 ||
|
|
memcmp(&p1->laddr, &p2->laddr, sizeof(p1->laddr)) == 0) &&
|
|
(memcmp(&p1->raddr, &in6addr_any, sizeof(p1->raddr)) == 0 ||
|
|
memcmp(&p1->raddr, &p2->raddr, sizeof(p1->raddr)) == 0) &&
|
|
(!p1->proto || !p2->proto || p1->proto == p2->proto) &&
|
|
(!p1->encap_limit || p1->encap_limit == p2->encap_limit) &&
|
|
(!p1->hop_limit || p1->hop_limit == p2->hop_limit) &&
|
|
(!(p1->flowinfo & IP6_FLOWINFO_TCLASS) ||
|
|
!((p1->flowinfo ^ p2->flowinfo) & IP6_FLOWINFO_TCLASS)) &&
|
|
(!(p1->flowinfo & IP6_FLOWINFO_FLOWLABEL) ||
|
|
!((p1->flowinfo ^ p2->flowinfo) & IP6_FLOWINFO_FLOWLABEL)) &&
|
|
(!p1->flags || (p1->flags & p2->flags)));
|
|
}
|
|
|
|
static int do_tunnels_list(struct ip6_tnl_parm2 *p)
|
|
{
|
|
char buf[512];
|
|
int err = -1;
|
|
FILE *fp = fopen("/proc/net/dev", "r");
|
|
if (fp == NULL) {
|
|
perror("fopen");
|
|
goto end;
|
|
}
|
|
|
|
/* skip two lines at the begenning of the file */
|
|
if (!fgets(buf, sizeof(buf), fp) ||
|
|
!fgets(buf, sizeof(buf), fp)) {
|
|
fprintf(stderr, "/proc/net/dev read error\n");
|
|
return -1;
|
|
}
|
|
|
|
while (fgets(buf, sizeof(buf), fp) != NULL) {
|
|
char name[IFNAMSIZ];
|
|
int index, type;
|
|
unsigned long rx_bytes, rx_packets, rx_errs, rx_drops,
|
|
rx_fifo, rx_frame,
|
|
tx_bytes, tx_packets, tx_errs, tx_drops,
|
|
tx_fifo, tx_colls, tx_carrier, rx_multi;
|
|
struct ip6_tnl_parm2 p1;
|
|
char *ptr;
|
|
|
|
buf[sizeof(buf) - 1] = '\0';
|
|
if ((ptr = strchr(buf, ':')) == NULL ||
|
|
(*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
|
|
fprintf(stderr, "Wrong format for /proc/net/dev. Giving up.\n");
|
|
goto end;
|
|
}
|
|
if (sscanf(ptr, "%ld%ld%ld%ld%ld%ld%ld%*d%ld%ld%ld%ld%ld%ld%ld",
|
|
&rx_bytes, &rx_packets, &rx_errs, &rx_drops,
|
|
&rx_fifo, &rx_frame, &rx_multi,
|
|
&tx_bytes, &tx_packets, &tx_errs, &tx_drops,
|
|
&tx_fifo, &tx_colls, &tx_carrier) != 14)
|
|
continue;
|
|
if (p->name[0] && strcmp(p->name, name))
|
|
continue;
|
|
index = ll_name_to_index(name);
|
|
if (index == 0)
|
|
continue;
|
|
type = ll_index_to_type(index);
|
|
if (type == -1) {
|
|
fprintf(stderr, "Failed to get type of \"%s\"\n", name);
|
|
continue;
|
|
}
|
|
if (type != ARPHRD_TUNNEL6 && type != ARPHRD_IP6GRE)
|
|
continue;
|
|
memset(&p1, 0, sizeof(p1));
|
|
ip6_tnl_parm_init(&p1, 0);
|
|
if (type == ARPHRD_IP6GRE)
|
|
p1.proto = IPPROTO_GRE;
|
|
strcpy(p1.name, name);
|
|
p1.link = ll_name_to_index(p1.name);
|
|
if (p1.link == 0)
|
|
continue;
|
|
if (tnl_get_ioctl(p1.name, &p1))
|
|
continue;
|
|
if (!ip6_tnl_parm_match(p, &p1))
|
|
continue;
|
|
print_tunnel(&p1);
|
|
if (show_stats) {
|
|
printf("%s", _SL_);
|
|
printf("RX: Packets Bytes Errors CsumErrs OutOfSeq Mcasts%s", _SL_);
|
|
printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-8ld%s",
|
|
rx_packets, rx_bytes, rx_errs, rx_frame, rx_fifo, rx_multi, _SL_);
|
|
printf("TX: Packets Bytes Errors DeadLoop NoRoute NoBufs%s", _SL_);
|
|
printf(" %-10ld %-12ld %-6ld %-8ld %-8ld %-6ld",
|
|
tx_packets, tx_bytes, tx_errs, tx_colls, tx_carrier, tx_drops);
|
|
}
|
|
printf("\n");
|
|
}
|
|
err = 0;
|
|
|
|
end:
|
|
if (fp)
|
|
fclose(fp);
|
|
return err;
|
|
}
|
|
|
|
static int do_show(int argc, char **argv)
|
|
{
|
|
struct ip6_tnl_parm2 p;
|
|
|
|
ll_init_map(&rth);
|
|
ip6_tnl_parm_init(&p, 0);
|
|
p.proto = 0; /* default to any */
|
|
|
|
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
|
|
return -1;
|
|
|
|
if (!p.name[0] || show_stats)
|
|
do_tunnels_list(&p);
|
|
else {
|
|
if (tnl_get_ioctl(p.name, &p))
|
|
return -1;
|
|
print_tunnel(&p);
|
|
printf("\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int do_add(int cmd, int argc, char **argv)
|
|
{
|
|
struct ip6_tnl_parm2 p;
|
|
const char *basedev = "ip6tnl0";
|
|
|
|
ip6_tnl_parm_init(&p, 1);
|
|
|
|
if (parse_args(argc, argv, cmd, &p) < 0)
|
|
return -1;
|
|
|
|
if (p.proto == IPPROTO_GRE)
|
|
basedev = "ip6gre0";
|
|
else if (p.i_flags & VTI_ISVTI)
|
|
basedev = "ip6_vti0";
|
|
|
|
return tnl_add_ioctl(cmd, basedev, p.name, &p);
|
|
}
|
|
|
|
static int do_del(int argc, char **argv)
|
|
{
|
|
struct ip6_tnl_parm2 p;
|
|
const char *basedev = "ip6tnl0";
|
|
|
|
ip6_tnl_parm_init(&p, 1);
|
|
|
|
if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
|
|
return -1;
|
|
|
|
if (p.proto == IPPROTO_GRE)
|
|
basedev = "ip6gre0";
|
|
else if (p.i_flags & VTI_ISVTI)
|
|
basedev = "ip6_vti0";
|
|
|
|
return tnl_del_ioctl(basedev, p.name, &p);
|
|
}
|
|
|
|
int do_ip6tunnel(int argc, char **argv)
|
|
{
|
|
switch (preferred_family) {
|
|
case AF_UNSPEC:
|
|
preferred_family = AF_INET6;
|
|
break;
|
|
case AF_INET6:
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unsupported protocol family: %d\n", preferred_family);
|
|
exit(-1);
|
|
}
|
|
|
|
if (argc > 0) {
|
|
if (matches(*argv, "add") == 0)
|
|
return do_add(SIOCADDTUNNEL, argc - 1, argv + 1);
|
|
if (matches(*argv, "change") == 0)
|
|
return do_add(SIOCCHGTUNNEL, argc - 1, argv + 1);
|
|
if (matches(*argv, "delete") == 0)
|
|
return do_del(argc - 1, argv + 1);
|
|
if (matches(*argv, "show") == 0 ||
|
|
matches(*argv, "lst") == 0 ||
|
|
matches(*argv, "list") == 0)
|
|
return do_show(argc - 1, argv + 1);
|
|
if (matches(*argv, "help") == 0)
|
|
usage();
|
|
} else
|
|
return do_show(0, NULL);
|
|
|
|
fprintf(stderr, "Command \"%s\" is unknown, try \"ip -f inet6 tunnel help\".\n", *argv);
|
|
exit(-1);
|
|
}
|