#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) < 0) {
+ if (rtnl_talk(&rth, &req.n, &req.n, sizeof(req)) < 0) {
get_failed:
fprintf(stderr,
"Failed to get existing tunnel info.\n");
if (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 (!matches(*argv, "dev")) {
NEXT_ARG();
link = if_nametoindex(*argv);
- if (link == 0)
+ 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++;
}
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;
}
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