#define DEFAULT_TNL_HOP_LIMIT (64)
+static void print_usage(FILE *f)
+{
+ fprintf(f,
+ "Usage: ... { ip6gre | ip6gretap | ip6erspan} [ remote ADDR ]\n"
+ " [ local ADDR ]\n"
+ " [ [i|o]seq ]\n"
+ " [ [i|o]key KEY ]\n"
+ " [ [i|o]csum ]\n"
+ " [ hoplimit TTL ]\n"
+ " [ encaplimit ELIM ]\n"
+ " [ tclass TCLASS ]\n"
+ " [ flowlabel FLOWLABEL ]\n"
+ " [ dscp inherit ]\n"
+ " [ fwmark MARK ]\n"
+ " [ dev PHYS_DEV ]\n"
+ " [ noencap ]\n"
+ " [ encap { fou | gue | none } ]\n"
+ " [ encap-sport PORT ]\n"
+ " [ encap-dport PORT ]\n"
+ " [ [no]encap-csum ]\n"
+ " [ [no]encap-csum6 ]\n"
+ " [ [no]encap-remcsum ]\n"
+ " [ erspan IDX ]\n"
+ "\n"
+ "Where: ADDR := IPV6_ADDRESS\n"
+ " TTL := { 0..255 } (default=%d)\n"
+ " KEY := { DOTTED_QUAD | NUMBER }\n"
+ " ELIM := { none | 0..255 }(default=%d)\n"
+ " TCLASS := { 0x0..0xff | inherit }\n"
+ " FLOWLABEL := { 0x0..0xfffff | inherit }\n"
+ " MARK := { 0x0..0xffffffff | inherit }\n",
+ DEFAULT_TNL_HOP_LIMIT, IPV6_DEFAULT_TNL_ENCAP_LIMIT
+ );
+}
+
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 { ip6gre | ip6gretap } [ remote ADDR ] [ local ADDR ]\n");
- fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
- fprintf(stderr, " [ hoplimit TTL ] [ encaplimit ELIM ]\n");
- fprintf(stderr, " [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
- fprintf(stderr, " [ dscp inherit ] [ dev PHYS_DEV ]\n");
- fprintf(stderr, "\n");
- fprintf(stderr, "Where: NAME := STRING\n");
- fprintf(stderr, " ADDR := IPV6_ADDRESS\n");
- fprintf(stderr, " TTL := { 0..255 } (default=%d)\n",
- DEFAULT_TNL_HOP_LIMIT);
- fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
- fprintf(stderr, " ELIM := { none | 0..255 }(default=%d)\n",
- IPV6_DEFAULT_TNL_ENCAP_LIMIT);
- fprintf(stderr, " TCLASS := { 0x0..0xff | inherit }\n");
- fprintf(stderr, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
+ print_usage(stderr);
exit(-1);
}
static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
+ struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
struct {
struct nlmsghdr n;
struct ifinfomsg i;
- char buf[1024];
- } req;
- struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)),
+ .n.nlmsg_flags = NLM_F_REQUEST,
+ .n.nlmsg_type = RTM_GETLINK,
+ .i.ifi_family = preferred_family,
+ .i.ifi_index = ifi->ifi_index,
+ };
+ struct nlmsghdr *answer;
struct rtattr *tb[IFLA_MAX + 1];
struct rtattr *linkinfo[IFLA_INFO_MAX+1];
struct rtattr *greinfo[IFLA_GRE_MAX + 1];
__u16 iflags = 0;
__u16 oflags = 0;
- unsigned ikey = 0;
- unsigned okey = 0;
+ __be32 ikey = 0;
+ __be32 okey = 0;
struct in6_addr raddr = IN6ADDR_ANY_INIT;
struct in6_addr laddr = IN6ADDR_ANY_INIT;
- unsigned link = 0;
- unsigned flowinfo = 0;
- unsigned flags = 0;
+ unsigned int link = 0;
+ unsigned int flowinfo = 0;
+ unsigned int flags = 0;
__u8 hop_limit = DEFAULT_TNL_HOP_LIMIT;
__u8 encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
+ __u16 encaptype = 0;
+ __u16 encapflags = TUNNEL_ENCAP_FLAG_CSUM6;
+ __u16 encapsport = 0;
+ __u16 encapdport = 0;
int len;
+ __u32 fwmark = 0;
+ __u32 erspan_idx = 0;
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_GETLINK;
- 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, &answer) < 0) {
get_failed:
fprintf(stderr,
"Failed to get existing tunnel info.\n");
return -1;
}
- len = req.n.nlmsg_len;
+ len = answer->nlmsg_len;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0)
goto get_failed;
- parse_rtattr(tb, IFLA_MAX, IFLA_RTA(&req.i), len);
+ parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len);
if (!tb[IFLA_LINKINFO])
goto get_failed;
if (greinfo[IFLA_GRE_FLAGS])
flags = rta_getattr_u32(greinfo[IFLA_GRE_FLAGS]);
+
+ 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]);
+
+ if (greinfo[IFLA_GRE_FWMARK])
+ fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]);
+
+ if (greinfo[IFLA_GRE_ERSPAN_INDEX])
+ erspan_idx = rta_getattr_u32(greinfo[IFLA_GRE_ERSPAN_INDEX]);
+
+ free(answer);
}
while (argc > 0) {
if (!matches(*argv, "key")) {
- unsigned uval;
-
NEXT_ARG();
iflags |= GRE_KEY;
oflags |= GRE_KEY;
- if (strchr(*argv, '.'))
- uval = get_addr32(*argv);
- else {
- if (get_unsigned(&uval, *argv, 0) < 0) {
- fprintf(stderr,
- "Invalid value for \"key\"\n");
- exit(-1);
- }
- uval = htonl(uval);
- }
-
- ikey = okey = uval;
+ ikey = okey = tnl_parse_key("key", *argv);
} else if (!matches(*argv, "ikey")) {
- unsigned uval;
-
NEXT_ARG();
iflags |= GRE_KEY;
- if (strchr(*argv, '.'))
- uval = get_addr32(*argv);
- else {
- if (get_unsigned(&uval, *argv, 0)<0) {
- fprintf(stderr, "invalid value of \"ikey\"\n");
- exit(-1);
- }
- uval = htonl(uval);
- }
- ikey = uval;
+ ikey = tnl_parse_key("ikey", *argv);
} else if (!matches(*argv, "okey")) {
- unsigned uval;
-
NEXT_ARG();
oflags |= GRE_KEY;
- if (strchr(*argv, '.'))
- uval = get_addr32(*argv);
- else {
- if (get_unsigned(&uval, *argv, 0)<0) {
- fprintf(stderr, "invalid value of \"okey\"\n");
- exit(-1);
- }
- uval = htonl(uval);
- }
- okey = uval;
+ okey = tnl_parse_key("okey", *argv);
} else if (!matches(*argv, "seq")) {
iflags |= GRE_SEQ;
oflags |= GRE_SEQ;
oflags |= GRE_CSUM;
} else if (!matches(*argv, "remote")) {
inet_prefix addr;
+
NEXT_ARG();
- get_prefix(&addr, *argv, preferred_family);
- if (addr.family == AF_UNSPEC)
- invarg("\"remote\" address family is AF_UNSPEC", *argv);
+ get_addr(&addr, *argv, AF_INET6);
memcpy(&raddr, &addr.data, sizeof(raddr));
} else if (!matches(*argv, "local")) {
inet_prefix addr;
+
NEXT_ARG();
- get_prefix(&addr, *argv, preferred_family);
- if (addr.family == AF_UNSPEC)
- invarg("\"local\" address family is AF_UNSPEC", *argv);
+ get_addr(&addr, *argv, AF_INET6);
memcpy(&laddr, &addr.data, sizeof(laddr));
} 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")) {
__u8 uval;
+
NEXT_ARG();
if (get_u8(&uval, *argv, 0))
invarg("invalid TTL", *argv);
!matches(*argv, "tclass") ||
!matches(*argv, "dsfield")) {
__u8 uval;
+
NEXT_ARG();
if (strcmp(*argv, "inherit") == 0)
flags |= IP6_TNL_F_USE_ORIG_TCLASS;
else {
if (get_u8(&uval, *argv, 16))
invarg("invalid TClass", *argv);
+ flowinfo &= ~IP6_FLOWINFO_TCLASS;
flowinfo |= htonl((__u32)uval << 20) & IP6_FLOWINFO_TCLASS;
flags &= ~IP6_TNL_F_USE_ORIG_TCLASS;
}
} else if (strcmp(*argv, "flowlabel") == 0 ||
strcmp(*argv, "fl") == 0) {
__u32 uval;
+
NEXT_ARG();
if (strcmp(*argv, "inherit") == 0)
flags |= IP6_TNL_F_USE_ORIG_FLOWLABEL;
invarg("invalid Flowlabel", *argv);
if (uval > 0xFFFFF)
invarg("invalid Flowlabel", *argv);
+ flowinfo &= ~IP6_FLOWINFO_FLOWLABEL;
flowinfo |= htonl(uval) & IP6_FLOWINFO_FLOWLABEL;
flags &= ~IP6_TNL_F_USE_ORIG_FLOWLABEL;
}
if (strcmp(*argv, "inherit") != 0)
invarg("not inherit", *argv);
flags |= IP6_TNL_F_RCV_DSCP_COPY;
+ } 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 if (strcmp(*argv, "fwmark") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "inherit") == 0) {
+ flags |= IP6_TNL_F_USE_ORIG_FWMARK;
+ fwmark = 0;
+ } else {
+ if (get_u32(&fwmark, *argv, 0))
+ invarg("invalid fwmark\n", *argv);
+ flags &= ~IP6_TNL_F_USE_ORIG_FWMARK;
+ }
+ } else if (strcmp(*argv, "encaplimit") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "none") == 0) {
+ flags |= IP6_TNL_F_IGN_ENCAP_LIMIT;
+ } else {
+ __u8 uval;
+
+ if (get_u8(&uval, *argv, 0))
+ invarg("invalid ELIM", *argv);
+ encap_limit = uval;
+ flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT;
+ }
+ } else if (strcmp(*argv, "erspan") == 0) {
+ NEXT_ARG();
+ if (get_u32(&erspan_idx, *argv, 0))
+ invarg("invalid erspan index\n", *argv);
+ if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0)
+ invarg("erspan index must be > 0 and <= 20-bit\n", *argv);
} else
usage();
argc--; argv++;
addattr_l(n, 1024, IFLA_GRE_TTL, &hop_limit, 1);
addattr_l(n, 1024, IFLA_GRE_ENCAP_LIMIT, &encap_limit, 1);
addattr_l(n, 1024, IFLA_GRE_FLOWINFO, &flowinfo, 4);
- addattr_l(n, 1024, IFLA_GRE_FLAGS, &flowinfo, 4);
+ addattr32(n, 1024, IFLA_GRE_FLAGS, flags);
+ addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
+ if (erspan_idx != 0)
+ addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
+
+ 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;
}
static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
- char s1[1024];
char s2[64];
const char *local = "any";
const char *remote = "any";
- unsigned iflags = 0;
- unsigned oflags = 0;
- unsigned flags = 0;
- unsigned flowinfo = 0;
+ unsigned int iflags = 0;
+ unsigned int oflags = 0;
+ unsigned int flags = 0;
+ unsigned int flowinfo = 0;
struct in6_addr in6_addr_any = IN6ADDR_ANY_INIT;
if (!tb)
flags = rta_getattr_u32(tb[IFLA_GRE_FLAGS]);
if (tb[IFLA_GRE_FLOWINFO])
- flags = rta_getattr_u32(tb[IFLA_GRE_FLOWINFO]);
+ flowinfo = rta_getattr_u32(tb[IFLA_GRE_FLOWINFO]);
if (tb[IFLA_GRE_REMOTE]) {
struct in6_addr addr;
+
memcpy(&addr, RTA_DATA(tb[IFLA_GRE_REMOTE]), sizeof(addr));
if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
- remote = format_host(AF_INET6, sizeof(addr), &addr, s1, sizeof(s1));
+ remote = format_host(AF_INET6, sizeof(addr), &addr);
}
- fprintf(f, "remote %s ", remote);
+ print_string(PRINT_ANY, "remote", "remote %s ", remote);
if (tb[IFLA_GRE_LOCAL]) {
struct in6_addr addr;
+
memcpy(&addr, RTA_DATA(tb[IFLA_GRE_LOCAL]), sizeof(addr));
if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
- local = format_host(AF_INET6, sizeof(addr), &addr, s1, sizeof(s1));
+ local = format_host(AF_INET6, sizeof(addr), &addr);
}
- fprintf(f, "local %s ", local);
+ print_string(PRINT_ANY, "local", "local %s ", local);
if (tb[IFLA_GRE_LINK] && rta_getattr_u32(tb[IFLA_GRE_LINK])) {
- unsigned link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
+ unsigned int link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
const char *n = if_indextoname(link, s2);
if (n)
- fprintf(f, "dev %s ", n);
+ print_string(PRINT_ANY, "link", "dev %s ", n);
else
- fprintf(f, "dev %u ", link);
+ print_uint(PRINT_ANY, "link_index", "dev %u ", link);
}
- if (tb[IFLA_GRE_TTL] && rta_getattr_u8(tb[IFLA_GRE_TTL]))
- fprintf(f, "hoplimit %d ", rta_getattr_u8(tb[IFLA_GRE_TTL]));
+ if (tb[IFLA_GRE_TTL]) {
+ __u8 ttl = rta_getattr_u8(tb[IFLA_GRE_TTL]);
+
+ if (ttl)
+ print_int(PRINT_ANY, "ttl", "hoplimit %d ", ttl);
+ else
+ print_int(PRINT_JSON, "ttl", NULL, ttl);
+ }
if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
- fprintf(f, "encaplimit none ");
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_ign_encap_limit",
+ "encaplimit none ",
+ true);
else if (tb[IFLA_GRE_ENCAP_LIMIT]) {
int encap_limit = rta_getattr_u8(tb[IFLA_GRE_ENCAP_LIMIT]);
- fprintf(f, "encaplimit %d ", encap_limit);
+ print_int(PRINT_ANY,
+ "encap_limit",
+ "encaplimit %d ",
+ encap_limit);
}
- if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
- fprintf(f, "flowlabel inherit ");
- else
- fprintf(f, "flowlabel 0x%05x ", ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
+ if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_flowlabel",
+ "flowlabel inherit ",
+ true);
+ } else {
+ if (is_json_context()) {
+ SPRINT_BUF(b1);
+
+ snprintf(b1, sizeof(b1), "0x%05x",
+ ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
+ print_string(PRINT_JSON, "flowlabel", NULL, b1);
+
+ } else {
+ fprintf(f, "flowlabel 0x%05x ",
+ ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
+ }
+ }
+
+ if (flags & IP6_TNL_F_USE_ORIG_TCLASS) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_tclass",
+ "tclass inherit ",
+ true);
+ } else {
+ if (is_json_context()) {
+ SPRINT_BUF(b1);
+
+ snprintf(b1, sizeof(b1), "0x%05x",
+ ntohl(flowinfo & IP6_FLOWINFO_TCLASS) >> 20);
+ print_string(PRINT_JSON, "tclass", NULL, b1);
+ } else {
+ fprintf(f, "tclass 0x%02x ",
+ ntohl(flowinfo & IP6_FLOWINFO_TCLASS) >> 20);
+ }
+ }
if (flags & IP6_TNL_F_RCV_DSCP_COPY)
- fprintf(f, "dscp inherit ");
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_rcv_dscp_copy",
+ "dscp inherit ",
+ true);
if (tb[IFLA_GRE_IFLAGS])
iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]);
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);
+ print_string(PRINT_ANY, "ikey", "ikey %s ", s2);
}
if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) {
inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2));
- fprintf(f, "okey %s ", s2);
+ print_string(PRINT_ANY, "okey", "okey %s ", s2);
}
if (iflags & GRE_SEQ)
- fputs("iseq ", f);
+ print_bool(PRINT_ANY, "iseq", "iseq ", true);
if (oflags & GRE_SEQ)
- fputs("oseq ", f);
+ print_bool(PRINT_ANY, "oseq", "oseq ", true);
if (iflags & GRE_CSUM)
- fputs("icsum ", f);
+ print_bool(PRINT_ANY, "icsum", "icsum ", true);
if (oflags & GRE_CSUM)
- fputs("ocsum ", f);
+ print_bool(PRINT_ANY, "ocsum", "ocsum ", true);
+
+ if (flags & IP6_TNL_F_USE_ORIG_FWMARK)
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_fwmark",
+ "fwmark inherit ",
+ true);
+ else if (tb[IFLA_GRE_FWMARK]) {
+ __u32 fwmark = rta_getattr_u32(tb[IFLA_GRE_FWMARK]);
+
+ if (fwmark) {
+ snprintf(s2, sizeof(s2), "0x%x", fwmark);
+
+ print_string(PRINT_ANY, "fwmark", "fwmark %s ", s2);
+ }
+ }
+
+ if (tb[IFLA_GRE_ERSPAN_INDEX]) {
+ __u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
+ fprintf(f, "erspan_index %u ", erspan_idx);
+ }
+
+ if (tb[IFLA_GRE_ENCAP_TYPE] &&
+ rta_getattr_u16(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]);
+
+ open_json_object("encap");
+
+ print_string(PRINT_FP, NULL, "encap ", NULL);
+ switch (type) {
+ case TUNNEL_ENCAP_FOU:
+ print_string(PRINT_ANY, "type", "%s ", "fou");
+ break;
+ case TUNNEL_ENCAP_GUE:
+ print_string(PRINT_ANY, "type", "%s ", "gue");
+ break;
+ default:
+ print_null(PRINT_ANY, "type", "unknown ", NULL);
+ break;
+ }
+
+ if (is_json_context()) {
+ print_uint(PRINT_JSON,
+ "sport",
+ NULL,
+ sport ? ntohs(sport) : 0);
+ print_uint(PRINT_JSON, "dport", NULL, ntohs(dport));
+ print_bool(PRINT_JSON, "csum", NULL,
+ flags & TUNNEL_ENCAP_FLAG_CSUM);
+ print_bool(PRINT_JSON, "csum6", NULL,
+ flags & TUNNEL_ENCAP_FLAG_CSUM6);
+ print_bool(PRINT_JSON, "remcsum", NULL,
+ flags & TUNNEL_ENCAP_FLAG_REMCSUM);
+ close_json_object();
+ } else {
+ 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 ip6gre_link_util = {
.maxattr = IFLA_GRE_MAX,
.parse_opt = gre_parse_opt,
.print_opt = gre_print_opt,
+ .print_help = gre_print_help,
};
struct link_util ip6gretap_link_util = {
.maxattr = IFLA_GRE_MAX,
.parse_opt = gre_parse_opt,
.print_opt = gre_print_opt,
+ .print_help = gre_print_help,
+};
+
+struct link_util ip6erspan_link_util = {
+ .id = "ip6erspan",
+ .maxattr = IFLA_GRE_MAX,
+ .parse_opt = gre_parse_opt,
+ .print_opt = gre_print_opt,
+ .print_help = gre_print_help,
};
projects / mirror_iproute2.git / blobdiff