#include <string.h>
#include <net/if.h>
-#include <linux/if_tunnel.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
+#include <linux/ip.h>
+#include <linux/if_tunnel.h>
#include "rt_names.h"
#include "utils.h"
#include "ip_common.h"
#include "tunnel.h"
+static void print_usage(FILE *f)
+{
+ fprintf(f, "Usage: ip link { add | set | change | replace | del } NAME\n");
+ fprintf(f, " type { gre | gretap } [ remote ADDR ] [ local ADDR ]\n");
+ fprintf(f, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
+ fprintf(f, " [ ttl TTL ] [ tos TOS ] [ [no]pmtudisc ] [ dev PHYS_DEV ]\n");
+ fprintf(f, " [ noencap ] [ encap { fou | gue | none } ]\n");
+ fprintf(f, " [ encap-sport PORT ] [ encap-dport PORT ]\n");
+ fprintf(f, " [ [no]encap-csum ] [ [no]encap-csum6 ] [ [no]encap-remcsum ]\n");
+ fprintf(f, "\n");
+ fprintf(f, "Where: NAME := STRING\n");
+ fprintf(f, " ADDR := { IP_ADDRESS | any }\n");
+ fprintf(f, " TOS := { NUMBER | inherit }\n");
+ fprintf(f, " TTL := { 1..255 | inherit }\n");
+ fprintf(f, " KEY := { DOTTED_QUAD | NUMBER }\n");
+}
+
static void usage(void) __attribute__((noreturn));
static void usage(void)
{
- fprintf(stderr, "Usage: ip link { add | set | change | replace | del } NAME\n");
- fprintf(stderr, " type { gre | gretap } [ remote ADDR ] [ local ADDR ]\n");
- fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
- fprintf(stderr, " [ ttl TTL ] [ tos TOS ] [ [no]pmtudisc ] [ dev PHYS_DEV ]\n");
- fprintf(stderr, "\n");
- fprintf(stderr, "Where: NAME := STRING\n");
- fprintf(stderr, " ADDR := { IP_ADDRESS | any }\n");
- fprintf(stderr, " TOS := { NUMBER | inherit }\n");
- fprintf(stderr, " TTL := { 1..255 | inherit }\n");
- fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
+ print_usage(stderr);
exit(-1);
}
struct {
struct nlmsghdr n;
struct ifinfomsg i;
- char buf[1024];
+ char buf[16384];
} req;
struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
struct rtattr *tb[IFLA_MAX + 1];
__u8 ttl = 0;
__u8 tos = 0;
int len;
+ __u16 encaptype = 0;
+ __u16 encapflags = 0;
+ __u16 encapsport = 0;
+ __u16 encapdport = 0;
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
memset(&req, 0, sizeof(req));
req.i.ifi_family = preferred_family;
req.i.ifi_index = ifi->ifi_index;
- if (rtnl_talk(&rth, &req.n, 0, 0, &req.n, NULL, NULL) < 0) {
+ if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0) {
get_failed:
fprintf(stderr,
"Failed to get existing tunnel info.\n");
linkinfo[IFLA_INFO_DATA]);
if (greinfo[IFLA_GRE_IKEY])
- ikey = *(__u32 *)RTA_DATA(greinfo[IFLA_GRE_IKEY]);
+ ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]);
if (greinfo[IFLA_GRE_OKEY])
- okey = *(__u32 *)RTA_DATA(greinfo[IFLA_GRE_OKEY]);
+ okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]);
if (greinfo[IFLA_GRE_IFLAGS])
- iflags = *(__u16 *)RTA_DATA(greinfo[IFLA_GRE_IFLAGS]);
+ iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]);
if (greinfo[IFLA_GRE_OFLAGS])
- oflags = *(__u16 *)RTA_DATA(greinfo[IFLA_GRE_OFLAGS]);
+ oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]);
if (greinfo[IFLA_GRE_LOCAL])
- saddr = *(__u32 *)RTA_DATA(greinfo[IFLA_GRE_LOCAL]);
+ saddr = rta_getattr_u32(greinfo[IFLA_GRE_LOCAL]);
if (greinfo[IFLA_GRE_REMOTE])
- daddr = *(__u32 *)RTA_DATA(greinfo[IFLA_GRE_REMOTE]);
+ daddr = rta_getattr_u32(greinfo[IFLA_GRE_REMOTE]);
if (greinfo[IFLA_GRE_PMTUDISC])
- pmtudisc = *(__u8 *)RTA_DATA(
+ pmtudisc = rta_getattr_u8(
greinfo[IFLA_GRE_PMTUDISC]);
if (greinfo[IFLA_GRE_TTL])
- ttl = *(__u8 *)RTA_DATA(greinfo[IFLA_GRE_TTL]);
+ ttl = rta_getattr_u8(greinfo[IFLA_GRE_TTL]);
if (greinfo[IFLA_GRE_TOS])
- tos = *(__u8 *)RTA_DATA(greinfo[IFLA_GRE_TOS]);
+ tos = rta_getattr_u8(greinfo[IFLA_GRE_TOS]);
if (greinfo[IFLA_GRE_LINK])
- link = *(__u8 *)RTA_DATA(greinfo[IFLA_GRE_LINK]);
+ link = rta_getattr_u8(greinfo[IFLA_GRE_LINK]);
+
+ if (greinfo[IFLA_GRE_ENCAP_TYPE])
+ encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]);
+ if (greinfo[IFLA_GRE_ENCAP_FLAGS])
+ encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]);
+ if (greinfo[IFLA_GRE_ENCAP_SPORT])
+ encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]);
+ if (greinfo[IFLA_GRE_ENCAP_DPORT])
+ encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]);
}
while (argc > 0) {
else {
if (get_unsigned(&uval, *argv, 0) < 0) {
fprintf(stderr,
- "Invalid value for \"key\"\n");
+ "Invalid value for \"key\": \"%s\"; it should be an unsigned integer\n", *argv);
exit(-1);
}
uval = htonl(uval);
uval = get_addr32(*argv);
else {
if (get_unsigned(&uval, *argv, 0)<0) {
- fprintf(stderr, "invalid value of \"ikey\"\n");
+ fprintf(stderr, "invalid value for \"ikey\": \"%s\"; it should be an unsigned integer\n", *argv);
exit(-1);
}
uval = htonl(uval);
uval = get_addr32(*argv);
else {
if (get_unsigned(&uval, *argv, 0)<0) {
- fprintf(stderr, "invalid value of \"okey\"\n");
+ fprintf(stderr, "invalid value for \"okey\": \"%s\"; it should be an unsigned integer\n", *argv);
exit(-1);
}
uval = htonl(uval);
saddr = get_addr32(*argv);
} else if (!matches(*argv, "dev")) {
NEXT_ARG();
- link = tnl_ioctl_get_ifindex(*argv);
- if (link == 0)
+ link = if_nametoindex(*argv);
+ if (link == 0) {
+ fprintf(stderr, "Cannot find device \"%s\"\n",
+ *argv);
exit(-1);
+ }
} else if (!matches(*argv, "ttl") ||
!matches(*argv, "hoplimit")) {
unsigned uval;
tos = uval;
} else
tos = 1;
- } else
+ } else if (strcmp(*argv, "noencap") == 0) {
+ encaptype = TUNNEL_ENCAP_NONE;
+ } else if (strcmp(*argv, "encap") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "fou") == 0)
+ encaptype = TUNNEL_ENCAP_FOU;
+ else if (strcmp(*argv, "gue") == 0)
+ encaptype = TUNNEL_ENCAP_GUE;
+ else if (strcmp(*argv, "none") == 0)
+ encaptype = TUNNEL_ENCAP_NONE;
+ else
+ invarg("Invalid encap type.", *argv);
+ } else if (strcmp(*argv, "encap-sport") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "auto") == 0)
+ encapsport = 0;
+ else if (get_u16(&encapsport, *argv, 0))
+ invarg("Invalid source port.", *argv);
+ } else if (strcmp(*argv, "encap-dport") == 0) {
+ NEXT_ARG();
+ if (get_u16(&encapdport, *argv, 0))
+ invarg("Invalid destination port.", *argv);
+ } else if (strcmp(*argv, "encap-csum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_CSUM;
+ } else if (strcmp(*argv, "noencap-csum") == 0) {
+ encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM;
+ } else if (strcmp(*argv, "encap-udp6-csum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_CSUM6;
+ } else if (strcmp(*argv, "noencap-udp6-csum") == 0) {
+ encapflags |= ~TUNNEL_ENCAP_FLAG_CSUM6;
+ } else if (strcmp(*argv, "encap-remcsum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM;
+ } else if (strcmp(*argv, "noencap-remcsum") == 0) {
+ encapflags |= ~TUNNEL_ENCAP_FLAG_REMCSUM;
+ } else
usage();
argc--; argv++;
}
oflags |= GRE_KEY;
}
if (IN_MULTICAST(ntohl(daddr)) && !saddr) {
- fprintf(stderr, "Broadcast tunnel requires a source address.\n");
+ fprintf(stderr, "A broadcast tunnel requires a source address.\n");
return -1;
}
addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1);
addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1);
+ addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype);
+ addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
+ addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
+ addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
+
return 0;
}
return;
if (tb[IFLA_GRE_REMOTE]) {
- unsigned addr = *(__u32 *)RTA_DATA(tb[IFLA_GRE_REMOTE]);
+ unsigned addr = rta_getattr_u32(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]);
+ unsigned addr = rta_getattr_u32(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 (tb[IFLA_GRE_LINK] && rta_getattr_u32(tb[IFLA_GRE_LINK])) {
+ unsigned link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
+ const char *n = if_indextoname(link, s2);
if (n)
fprintf(f, "dev %s ", n);
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]));
+ if (tb[IFLA_GRE_TTL] && rta_getattr_u8(tb[IFLA_GRE_TTL]))
+ fprintf(f, "ttl %d ", rta_getattr_u8(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]);
+ if (tb[IFLA_GRE_TOS] && rta_getattr_u8(tb[IFLA_GRE_TOS])) {
+ int tos = rta_getattr_u8(tb[IFLA_GRE_TOS]);
fputs("tos ", f);
if (tos == 1)
}
if (tb[IFLA_GRE_PMTUDISC] &&
- !*(__u8 *)RTA_DATA(tb[IFLA_GRE_PMTUDISC]))
+ !rta_getattr_u8(tb[IFLA_GRE_PMTUDISC]))
fputs("nopmtudisc ", f);
if (tb[IFLA_GRE_IFLAGS])
- iflags = *(__u16 *)RTA_DATA(tb[IFLA_GRE_IFLAGS]);
+ iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
if (tb[IFLA_GRE_OFLAGS])
- oflags = *(__u16 *)RTA_DATA(tb[IFLA_GRE_OFLAGS]);
+ oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]);
- if (iflags & GRE_KEY && tb[IFLA_GRE_IKEY] &&
- *(__u32 *)RTA_DATA(tb[IFLA_GRE_IKEY])) {
+ if ((iflags & GRE_KEY) && 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])) {
+ if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) {
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2));
- fprintf(f, "ikey %s ", s2);
+ fprintf(f, "okey %s ", s2);
}
if (iflags & GRE_SEQ)
fputs("icsum ", f);
if (oflags & GRE_CSUM)
fputs("ocsum ", f);
+
+ if (tb[IFLA_GRE_ENCAP_TYPE] &&
+ *(__u16 *)RTA_DATA(tb[IFLA_GRE_ENCAP_TYPE]) != TUNNEL_ENCAP_NONE) {
+ __u16 type = rta_getattr_u16(tb[IFLA_GRE_ENCAP_TYPE]);
+ __u16 flags = rta_getattr_u16(tb[IFLA_GRE_ENCAP_FLAGS]);
+ __u16 sport = rta_getattr_u16(tb[IFLA_GRE_ENCAP_SPORT]);
+ __u16 dport = rta_getattr_u16(tb[IFLA_GRE_ENCAP_DPORT]);
+
+ fputs("encap ", f);
+ switch (type) {
+ case TUNNEL_ENCAP_FOU:
+ fputs("fou ", f);
+ break;
+ case TUNNEL_ENCAP_GUE:
+ fputs("gue ", f);
+ break;
+ default:
+ fputs("unknown ", f);
+ break;
+ }
+
+ if (sport == 0)
+ fputs("encap-sport auto ", f);
+ else
+ fprintf(f, "encap-sport %u", ntohs(sport));
+
+ fprintf(f, "encap-dport %u ", ntohs(dport));
+
+ if (flags & TUNNEL_ENCAP_FLAG_CSUM)
+ fputs("encap-csum ", f);
+ else
+ fputs("noencap-csum ", f);
+
+ if (flags & TUNNEL_ENCAP_FLAG_CSUM6)
+ fputs("encap-csum6 ", f);
+ else
+ fputs("noencap-csum6 ", f);
+
+ if (flags & TUNNEL_ENCAP_FLAG_REMCSUM)
+ fputs("encap-remcsum ", f);
+ else
+ fputs("noencap-remcsum ", f);
+ }
+}
+
+static void gre_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ print_usage(f);
}
struct link_util gre_link_util = {
.maxattr = IFLA_GRE_MAX,
.parse_opt = gre_parse_opt,
.print_opt = gre_print_opt,
+ .print_help = gre_print_help,
};
struct link_util gretap_link_util = {
.maxattr = IFLA_GRE_MAX,
.parse_opt = gre_parse_opt,
.print_opt = gre_print_opt,
+ .print_help = gre_print_help,
};
projects / mirror_iproute2.git / blobdiff