/* Return value becomes exitcode. It's okay to not return at all */
static int do_show(char **argv)
{
int err;
struct ip_tunnel_parm p;
parse_args(argv, SIOCGETTUNNEL, &p);
switch (p.iph.protocol) {
case IPPROTO_IPIP:
err = do_get_ioctl(p.name[0] ? p.name : "tunl0", &p);
break;
case IPPROTO_GRE:
err = do_get_ioctl(p.name[0] ? p.name : "gre0", &p);
break;
case IPPROTO_IPV6:
err = do_get_ioctl(p.name[0] ? p.name : "sit0", &p);
break;
default:
do_tunnels_list(&p);
return 0;
}
if (err)
return -1;
print_tunnel(&p);
bb_putchar('\n');
return 0;
}
static int do_show(int argc, char **argv)
{
int err;
struct ip_tunnel_parm p;
ll_init_map(&rth);
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
return -1;
switch (p.iph.protocol) {
case IPPROTO_IPIP:
if (p.i_flags & VTI_ISVTI)
err = tnl_get_ioctl(p.name[0] ? p.name : "ip_vti0", &p);
else
err = tnl_get_ioctl(p.name[0] ? p.name : "tunl0", &p);
break;
case IPPROTO_GRE:
err = tnl_get_ioctl(p.name[0] ? p.name : "gre0", &p);
break;
case IPPROTO_IPV6:
err = tnl_get_ioctl(p.name[0] ? p.name : "sit0", &p);
break;
default:
do_tunnels_list(&p);
return 0;
}
if (err)
return -1;
print_tunnel(&p);
printf("\n");
return 0;
}
static int do_show(int argc, char **argv)
{
struct ip_tunnel_parm p, p1;
const char *basedev;
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
return -1;
basedev = tnl_defname(&p);
if (!basedev) {
struct tnl_print_nlmsg_info info = {
.p1 = &p,
.p2 = &p1,
.init = ip_tunnel_parm_initialize,
.match = ip_tunnel_parm_match,
.print = print_tunnel,
};
return do_tunnels_list(&info);
}
if (tnl_get_ioctl(p.name[0] ? p.name : basedev, &p))
return -1;
print_tunnel(&p);
fputc('\n', stdout);
return 0;
}
static void do_tunnels_list(struct ip_tunnel_parm *p)
{
char name[IFNAMSIZ];
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;
int type;
struct ip_tunnel_parm p1;
char buf[512];
FILE *fp = fopen_or_warn("/proc/net/dev", "r");
if (fp == NULL) {
return;
}
/* skip headers */
fgets(buf, sizeof(buf), fp);
fgets(buf, sizeof(buf), fp);
while (fgets(buf, sizeof(buf), fp) != NULL) {
char *ptr;
/*buf[sizeof(buf) - 1] = 0; - fgets is safe anyway */
ptr = strchr(buf, ':');
if (ptr == NULL ||
(*ptr++ = 0, sscanf(buf, "%s", name) != 1)
) {
bb_error_msg("wrong format of /proc/net/dev");
return;
}
if (sscanf(ptr, "%lu%lu%lu%lu%lu%lu%lu%*d%lu%lu%lu%lu%lu%lu%lu",
&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;
type = do_ioctl_get_iftype(name);
if (type == -1) {
bb_error_msg("can't get type of [%s]", name);
continue;
}
if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
continue;
memset(&p1, 0, sizeof(p1));
if (do_get_ioctl(name, &p1))
continue;
if ((p->link && p1.link != p->link) ||
(p->name[0] && strcmp(p1.name, p->name)) ||
(p->iph.daddr && p1.iph.daddr != p->iph.daddr) ||
(p->iph.saddr && p1.iph.saddr != p->iph.saddr) ||
(p->i_key && p1.i_key != p->i_key)
) {
continue;
}
print_tunnel(&p1);
bb_putchar('\n');
}
}
static int tunnel_nlmsg(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
int ret = get_response(n, arg);
if (ret == 0)
print_tunnel(arg);
return ret;
}
static int do_tunnels_list(struct ip_tunnel_parm *p)
{
char name[IFNAMSIZ];
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;
int type;
struct ip_tunnel_parm p1;
char buf[512];
FILE *fp = fopen("/proc/net/dev", "r");
if (fp == NULL) {
perror("fopen");
return -1;
}
fgets(buf, sizeof(buf), fp);
fgets(buf, sizeof(buf), fp);
while (fgets(buf, sizeof(buf), fp) != NULL) {
char *ptr;
buf[sizeof(buf) - 1] = 0;
if ((ptr = strchr(buf, ':')) == NULL ||
(*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
bb_error_msg("Wrong format of /proc/net/dev. Sorry.");
return -1;
}
if (sscanf(ptr, "%lu%lu%lu%lu%lu%lu%lu%*d%lu%lu%lu%lu%lu%lu%lu",
&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;
type = do_ioctl_get_iftype(name);
if (type == -1) {
bb_error_msg("Failed to get type of [%s]", name);
continue;
}
if (type != ARPHRD_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
continue;
memset(&p1, 0, sizeof(p1));
if (do_get_ioctl(name, &p1))
continue;
if ((p->link && p1.link != p->link) ||
(p->name[0] && strcmp(p1.name, p->name)) ||
(p->iph.daddr && p1.iph.daddr != p->iph.daddr) ||
(p->iph.saddr && p1.iph.saddr != p->iph.saddr) ||
(p->i_key && p1.i_key != p->i_key))
continue;
print_tunnel(&p1);
printf("\n");
}
return 0;
}
int print_mpls(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
{
struct rtattr *tb[MPLS_ATTR_MAX + 1];
struct genlmsghdr *ghdr = NLMSG_DATA(n);
int len = n->nlmsg_len;
struct rtattr *attrs;
if (n->nlmsg_type != PF_MPLS) {
fprintf(stderr, "Not a controller message, nlmsg_len=%d "
"nlmsg_type=0x%x\n", n->nlmsg_len, n->nlmsg_type);
return 0;
}
len -= NLMSG_LENGTH(GENL_HDRLEN);
if (len < 0) {
fprintf(stderr, "BUG: wrong nlmsg len %d\n", len);
return -1;
}
attrs = (struct rtattr *) ((char *) ghdr + GENL_HDRLEN);
parse_rtattr(tb, MPLS_ATTR_MAX, attrs, len);
switch (ghdr->cmd) {
case MPLS_CMD_NEWILM:
return print_ilm(n,arg,tb);
case MPLS_CMD_NEWNHLFE:
return print_nhlfe(n,arg,tb);
case MPLS_CMD_NEWXC:
return print_xc(n,arg,tb);
case MPLS_CMD_SETLABELSPACE:
return print_labelspace(n,arg,tb);
default:
return 0;
}
#if 0
if (n->nlmsg_type >= MPLS_RTM_ADDTUNNEL &&
n->nlmsg_type <= MPLS_RTM_DELTUNNEL) {
return print_tunnel(n,arg, tb);
}
#endif
return 0;
}
static int do_show(int argc, char **argv)
{
struct ip_tunnel_parm p;
const char *basedev;
ll_init_map(&rth);
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
return -1;
basedev = tnl_defname(&p);
if (!basedev)
return do_tunnels_list(&p);
if (tnl_get_ioctl(p.name[0] ? p.name : basedev, &p))
return -1;
print_tunnel(&p);
printf("\n");
return 0;
}
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 ip_tunnel_parm *p)
{
char name[IFNAMSIZ];
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 ip_tunnel_parm p1;
char buf[512];
FILE *fp = fopen("/proc/net/dev", "r");
if (fp == NULL) {
perror("fopen");
return -1;
}
/* skip header lines */
if (!fgets(buf, sizeof(buf), fp) ||
!fgets(buf, sizeof(buf), fp)) {
fprintf(stderr, "/proc/net/dev read error\n");
fclose(fp);
return -1;
}
while (fgets(buf, sizeof(buf), fp) != NULL) {
int index, type;
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");
fclose(fp);
return -1;
}
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_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
continue;
memset(&p1, 0, sizeof(p1));
if (tnl_get_ioctl(name, &p1))
continue;
if ((p->link && p1.link != p->link) ||
(p->name[0] && strcmp(p1.name, p->name)) ||
(p->iph.daddr && p1.iph.daddr != p->iph.daddr) ||
(p->iph.saddr && p1.iph.saddr != p->iph.saddr) ||
(p->i_key && p1.i_key != p->i_key))
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");
}
fclose(fp);
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;
}
static int do_tunnels_list(struct ip_tunnel_parm *p)
{
char buf[512];
int err = -1;
FILE *fp = fopen("/proc/net/dev", "r");
if (fp == NULL) {
perror("fopen");
return -1;
}
/* skip header lines */
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 ip_tunnel_parm p1;
char *ptr;
buf[sizeof(buf) - 1] = 0;
ptr = strchr(buf, ':');
if (ptr == 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_TUNNEL && type != ARPHRD_IPGRE && type != ARPHRD_SIT)
continue;
memset(&p1, 0, sizeof(p1));
if (tnl_get_ioctl(name, &p1))
continue;
if ((p->link && p1.link != p->link) ||
(p->name[0] && strcmp(p1.name, p->name)) ||
(p->iph.daddr && p1.iph.daddr != p->iph.daddr) ||
(p->iph.saddr && p1.iph.saddr != p->iph.saddr) ||
(p->i_key && p1.i_key != p->i_key))
continue;
print_tunnel(&p1);
if (show_stats)
tnl_print_stats(ptr);
printf("\n");
}
err = 0;
end:
fclose(fp);
return err;
}
