static int do_del(int argc, char **argv)
{
struct ip6_tnl_parm p;
ip6_tnl_parm_init(&p, 1);
if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
return -1;
return tnl_del_ioctl(p.name[0] ? p.name : "ip6tnl0", p.name, &p);
}
static int do_add(int cmd, int argc, char **argv)
{
struct ip6_tnl_parm p;
ip6_tnl_parm_init(&p, 1);
if (parse_args(argc, argv, cmd, &p) < 0)
return -1;
return tnl_add_ioctl(cmd,
cmd == SIOCCHGTUNNEL && p.name[0] ?
p.name : "ip6tnl0", 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);
}
static int do_del(int argc, char **argv)
{
struct ip6_tnl_parm2 p;
ip6_tnl_parm_init(&p, 1);
if (parse_args(argc, argv, SIOCDELTUNNEL, &p) < 0)
return -1;
switch (p.proto) {
case IPPROTO_IPIP:
case IPPROTO_IPV6:
return tnl_del_ioctl("ip6tnl0", p.name, &p);
case IPPROTO_GRE:
return tnl_del_ioctl("ip6gre0", p.name, &p);
default:
return tnl_del_ioctl(p.name, p.name, &p);
}
return -1;
}
static int do_add(int cmd, int argc, char **argv)
{
struct ip6_tnl_parm2 p;
ip6_tnl_parm_init(&p, 1);
if (parse_args(argc, argv, cmd, &p) < 0)
return -1;
switch (p.proto) {
case IPPROTO_IPIP:
case IPPROTO_IPV6:
return tnl_add_ioctl(cmd, "ip6tnl0", p.name, &p);
case IPPROTO_GRE:
return tnl_add_ioctl(cmd, "ip6gre0", p.name, &p);
default:
fprintf(stderr, "cannot determine tunnel mode (ip6ip6, ipip6 or gre)\n");
}
return -1;
}
static int do_show(int argc, char **argv)
{
struct ip6_tnl_parm p;
ip6_tnl_parm_init(&p, 0);
if (parse_args(argc, argv, &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_show(int argc, char **argv)
{
struct ip6_tnl_parm 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_tunnels_list(struct ip6_tnl_parm *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_parm p1;
char *ptr;
buf[sizeof(buf) - 1] = '\0';
if ((ptr = strchr(buf, ':')) == NULL ||
(*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
fprintf(stderr, "Wrong format of /proc/net/dev. Sorry.\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)
continue;
memset(&p1, 0, sizeof(p1));
ip6_tnl_parm_init(&p1, 0);
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_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");
return -1;
}
/* 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");
goto end;
}
while (fgets(buf, sizeof(buf), fp) != NULL) {
char name[IFNAMSIZ];
int index, type;
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 (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;
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)
tnl_print_stats(ptr);
printf("\n");
}
err = 0;
end:
fclose(fp);
return err;
}