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-rw-r--r--ip/iplink_vxlan.c674
1 files changed, 674 insertions, 0 deletions
diff --git a/ip/iplink_vxlan.c b/ip/iplink_vxlan.c
new file mode 100644
index 0000000..01522d6
--- /dev/null
+++ b/ip/iplink_vxlan.c
@@ -0,0 +1,674 @@
+/*
+ * iplink_vxlan.c VXLAN device support
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Stephen Hemminger <shemminger@vyatta.com
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <net/if.h>
+#include <linux/ip.h>
+#include <linux/if_link.h>
+#include <arpa/inet.h>
+
+#include "rt_names.h"
+#include "utils.h"
+#include "ip_common.h"
+
+#define VXLAN_ATTRSET(attrs, type) (((attrs) & (1L << (type))) != 0)
+
+static void print_explain(FILE *f)
+{
+ fprintf(f,
+ "Usage: ... vxlan id VNI\n"
+ " [ { group | remote } IP_ADDRESS ]\n"
+ " [ local ADDR ]\n"
+ " [ ttl TTL ]\n"
+ " [ tos TOS ]\n"
+ " [ df DF ]\n"
+ " [ flowlabel LABEL ]\n"
+ " [ dev PHYS_DEV ]\n"
+ " [ dstport PORT ]\n"
+ " [ srcport MIN MAX ]\n"
+ " [ [no]learning ]\n"
+ " [ [no]proxy ]\n"
+ " [ [no]rsc ]\n"
+ " [ [no]l2miss ]\n"
+ " [ [no]l3miss ]\n"
+ " [ ageing SECONDS ]\n"
+ " [ maxaddress NUMBER ]\n"
+ " [ [no]udpcsum ]\n"
+ " [ [no]udp6zerocsumtx ]\n"
+ " [ [no]udp6zerocsumrx ]\n"
+ " [ [no]remcsumtx ] [ [no]remcsumrx ]\n"
+ " [ [no]external ] [ gbp ] [ gpe ]\n"
+ " [ [no]vnifilter ]\n"
+ "\n"
+ "Where: VNI := 0-16777215\n"
+ " ADDR := { IP_ADDRESS | any }\n"
+ " TOS := { NUMBER | inherit }\n"
+ " TTL := { 1..255 | auto | inherit }\n"
+ " DF := { unset | set | inherit }\n"
+ " LABEL := 0-1048575\n"
+ );
+}
+
+static void explain(void)
+{
+ print_explain(stderr);
+}
+
+static void check_duparg(__u64 *attrs, int type, const char *key,
+ const char *argv)
+{
+ if (!VXLAN_ATTRSET(*attrs, type)) {
+ *attrs |= (1L << type);
+ return;
+ }
+ duparg2(key, argv);
+}
+
+static int vxlan_parse_opt(struct link_util *lu, int argc, char **argv,
+ struct nlmsghdr *n)
+{
+ inet_prefix saddr, daddr;
+ __u32 vni = 0;
+ __u8 learning = 1;
+ __u16 dstport = 0;
+ __u8 metadata = 0;
+ __u8 vnifilter = 0;
+ __u64 attrs = 0;
+ bool set_op = (n->nlmsg_type == RTM_NEWLINK &&
+ !(n->nlmsg_flags & NLM_F_CREATE));
+ bool selected_family = false;
+
+ saddr.family = daddr.family = AF_UNSPEC;
+
+ inet_prefix_reset(&saddr);
+ inet_prefix_reset(&daddr);
+
+ while (argc > 0) {
+ if (!matches(*argv, "id") ||
+ !matches(*argv, "vni")) {
+ /* We will add ID attribute outside of the loop since we
+ * need to consider metadata information as well.
+ */
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_ID, "id", *argv);
+ if (get_u32(&vni, *argv, 0) ||
+ vni >= 1u << 24)
+ invarg("invalid id", *argv);
+ } else if (!matches(*argv, "group")) {
+ if (is_addrtype_inet_not_multi(&daddr)) {
+ fprintf(stderr, "vxlan: both group and remote");
+ fprintf(stderr, " cannot be specified\n");
+ return -1;
+ }
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_GROUP, "group", *argv);
+ get_addr(&daddr, *argv, saddr.family);
+ if (!is_addrtype_inet_multi(&daddr))
+ invarg("invalid group address", *argv);
+ } else if (!matches(*argv, "remote")) {
+ if (is_addrtype_inet_multi(&daddr)) {
+ fprintf(stderr, "vxlan: both group and remote");
+ fprintf(stderr, " cannot be specified\n");
+ return -1;
+ }
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_GROUP, "remote", *argv);
+ get_addr(&daddr, *argv, saddr.family);
+ if (!is_addrtype_inet_not_multi(&daddr))
+ invarg("invalid remote address", *argv);
+ } else if (!matches(*argv, "local")) {
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_LOCAL, "local", *argv);
+ get_addr(&saddr, *argv, daddr.family);
+ if (!is_addrtype_inet_not_multi(&saddr))
+ invarg("invalid local address", *argv);
+ } else if (!matches(*argv, "dev")) {
+ unsigned int link;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_LINK, "dev", *argv);
+ link = ll_name_to_index(*argv);
+ if (!link)
+ exit(nodev(*argv));
+ addattr32(n, 1024, IFLA_VXLAN_LINK, link);
+ } else if (!matches(*argv, "ttl") ||
+ !matches(*argv, "hoplimit")) {
+ unsigned int uval;
+ __u8 ttl = 0;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_TTL, "ttl", *argv);
+ if (strcmp(*argv, "inherit") == 0) {
+ addattr(n, 1024, IFLA_VXLAN_TTL_INHERIT);
+ } else if (strcmp(*argv, "auto") == 0) {
+ addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
+ } else {
+ if (get_unsigned(&uval, *argv, 0))
+ invarg("invalid TTL", *argv);
+ if (uval > 255)
+ invarg("TTL must be <= 255", *argv);
+ ttl = uval;
+ addattr8(n, 1024, IFLA_VXLAN_TTL, ttl);
+ }
+ } else if (!matches(*argv, "tos") ||
+ !matches(*argv, "dsfield")) {
+ __u32 uval;
+ __u8 tos;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_TOS, "tos", *argv);
+ if (strcmp(*argv, "inherit") != 0) {
+ if (rtnl_dsfield_a2n(&uval, *argv))
+ invarg("bad TOS value", *argv);
+ tos = uval;
+ } else
+ tos = 1;
+ addattr8(n, 1024, IFLA_VXLAN_TOS, tos);
+ } else if (!matches(*argv, "df")) {
+ enum ifla_vxlan_df df;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_DF, "df", *argv);
+ if (strcmp(*argv, "unset") == 0)
+ df = VXLAN_DF_UNSET;
+ else if (strcmp(*argv, "set") == 0)
+ df = VXLAN_DF_SET;
+ else if (strcmp(*argv, "inherit") == 0)
+ df = VXLAN_DF_INHERIT;
+ else
+ invarg("DF must be 'unset', 'set' or 'inherit'",
+ *argv);
+
+ addattr8(n, 1024, IFLA_VXLAN_DF, df);
+ } else if (!matches(*argv, "label") ||
+ !matches(*argv, "flowlabel")) {
+ __u32 uval;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_LABEL, "flowlabel",
+ *argv);
+ if (get_u32(&uval, *argv, 0) ||
+ (uval & ~LABEL_MAX_MASK))
+ invarg("invalid flowlabel", *argv);
+ addattr32(n, 1024, IFLA_VXLAN_LABEL, htonl(uval));
+ } else if (!matches(*argv, "ageing")) {
+ __u32 age;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_AGEING, "ageing",
+ *argv);
+ if (strcmp(*argv, "none") == 0)
+ age = 0;
+ else if (get_u32(&age, *argv, 0))
+ invarg("ageing timer", *argv);
+ addattr32(n, 1024, IFLA_VXLAN_AGEING, age);
+ } else if (!matches(*argv, "maxaddress")) {
+ __u32 maxaddr;
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_LIMIT,
+ "maxaddress", *argv);
+ if (strcmp(*argv, "unlimited") == 0)
+ maxaddr = 0;
+ else if (get_u32(&maxaddr, *argv, 0))
+ invarg("max addresses", *argv);
+ addattr32(n, 1024, IFLA_VXLAN_LIMIT, maxaddr);
+ } else if (!matches(*argv, "port") ||
+ !matches(*argv, "srcport")) {
+ struct ifla_vxlan_port_range range = { 0, 0 };
+
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_PORT_RANGE, "srcport",
+ *argv);
+ if (get_be16(&range.low, *argv, 0))
+ invarg("min port", *argv);
+ NEXT_ARG();
+ if (get_be16(&range.high, *argv, 0))
+ invarg("max port", *argv);
+ if (range.low || range.high) {
+ addattr_l(n, 1024, IFLA_VXLAN_PORT_RANGE,
+ &range, sizeof(range));
+ }
+ } else if (!matches(*argv, "dstport")) {
+ NEXT_ARG();
+ check_duparg(&attrs, IFLA_VXLAN_PORT, "dstport", *argv);
+ if (get_u16(&dstport, *argv, 0))
+ invarg("dst port", *argv);
+ } else if (!matches(*argv, "nolearning")) {
+ check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
+ learning = 0;
+ } else if (!matches(*argv, "learning")) {
+ check_duparg(&attrs, IFLA_VXLAN_LEARNING, *argv, *argv);
+ learning = 1;
+ } else if (!matches(*argv, "noproxy")) {
+ check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_PROXY, 0);
+ } else if (!matches(*argv, "proxy")) {
+ check_duparg(&attrs, IFLA_VXLAN_PROXY, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_PROXY, 1);
+ } else if (!matches(*argv, "norsc")) {
+ check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_RSC, 0);
+ } else if (!matches(*argv, "rsc")) {
+ check_duparg(&attrs, IFLA_VXLAN_RSC, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_RSC, 1);
+ } else if (!matches(*argv, "nol2miss")) {
+ check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_L2MISS, 0);
+ } else if (!matches(*argv, "l2miss")) {
+ check_duparg(&attrs, IFLA_VXLAN_L2MISS, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_L2MISS, 1);
+ } else if (!matches(*argv, "nol3miss")) {
+ check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_L3MISS, 0);
+ } else if (!matches(*argv, "l3miss")) {
+ check_duparg(&attrs, IFLA_VXLAN_L3MISS, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_L3MISS, 1);
+ } else if (!matches(*argv, "udpcsum")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 1);
+ } else if (!matches(*argv, "noudpcsum")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_CSUM, *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_CSUM, 0);
+ } else if (!matches(*argv, "udp6zerocsumtx")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 1);
+ } else if (!matches(*argv, "noudp6zerocsumtx")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_TX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_TX, 0);
+ } else if (!matches(*argv, "udp6zerocsumrx")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 1);
+ } else if (!matches(*argv, "noudp6zerocsumrx")) {
+ check_duparg(&attrs, IFLA_VXLAN_UDP_ZERO_CSUM6_RX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_UDP_ZERO_CSUM6_RX, 0);
+ } else if (!matches(*argv, "remcsumtx")) {
+ check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 1);
+ } else if (!matches(*argv, "noremcsumtx")) {
+ check_duparg(&attrs, IFLA_VXLAN_REMCSUM_TX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_REMCSUM_TX, 0);
+ } else if (!matches(*argv, "remcsumrx")) {
+ check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 1);
+ } else if (!matches(*argv, "noremcsumrx")) {
+ check_duparg(&attrs, IFLA_VXLAN_REMCSUM_RX,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_REMCSUM_RX, 0);
+ } else if (!matches(*argv, "external")) {
+ check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
+ *argv, *argv);
+ metadata = 1;
+ learning = 0;
+ /* we will add LEARNING attribute outside of the loop */
+ addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
+ metadata);
+ } else if (!matches(*argv, "noexternal")) {
+ check_duparg(&attrs, IFLA_VXLAN_COLLECT_METADATA,
+ *argv, *argv);
+ metadata = 0;
+ addattr8(n, 1024, IFLA_VXLAN_COLLECT_METADATA,
+ metadata);
+ } else if (!matches(*argv, "gbp")) {
+ check_duparg(&attrs, IFLA_VXLAN_GBP, *argv, *argv);
+ addattr_l(n, 1024, IFLA_VXLAN_GBP, NULL, 0);
+ } else if (!matches(*argv, "gpe")) {
+ check_duparg(&attrs, IFLA_VXLAN_GPE, *argv, *argv);
+ addattr_l(n, 1024, IFLA_VXLAN_GPE, NULL, 0);
+ } else if (!strcmp(*argv, "vnifilter")) {
+ check_duparg(&attrs, IFLA_VXLAN_VNIFILTER,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_VNIFILTER, 1);
+ vnifilter = 1;
+ } else if (!strcmp(*argv, "novnifilter")) {
+ check_duparg(&attrs, IFLA_VXLAN_VNIFILTER,
+ *argv, *argv);
+ addattr8(n, 1024, IFLA_VXLAN_VNIFILTER, 0);
+ } else if (matches(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "vxlan: unknown command \"%s\"?\n", *argv);
+ explain();
+ return -1;
+ }
+ argc--, argv++;
+ }
+
+ if (!metadata && vnifilter) {
+ fprintf(stderr, "vxlan: vnifilter is valid only when 'external' is set\n");
+ return -1;
+ }
+
+ if (metadata && VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID)) {
+ fprintf(stderr, "vxlan: both 'external' and vni cannot be specified\n");
+ return -1;
+ }
+
+ if (!metadata && !vnifilter && !VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID) && !set_op) {
+ fprintf(stderr, "vxlan: missing virtual network identifier\n");
+ return -1;
+ }
+
+ if (is_addrtype_inet_multi(&daddr) &&
+ !VXLAN_ATTRSET(attrs, IFLA_VXLAN_LINK)) {
+ fprintf(stderr, "vxlan: 'group' requires 'dev' to be specified\n");
+ return -1;
+ }
+
+ if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) &&
+ VXLAN_ATTRSET(attrs, IFLA_VXLAN_GPE)) {
+ dstport = 4790;
+ } else if (!VXLAN_ATTRSET(attrs, IFLA_VXLAN_PORT) && !set_op) {
+ fprintf(stderr, "vxlan: destination port not specified\n"
+ "Will use Linux kernel default (non-standard value)\n");
+ fprintf(stderr,
+ "Use 'dstport 4789' to get the IANA assigned value\n"
+ "Use 'dstport 0' to get default and quiet this message\n");
+ }
+
+ if (VXLAN_ATTRSET(attrs, IFLA_VXLAN_ID))
+ addattr32(n, 1024, IFLA_VXLAN_ID, vni);
+
+ if (is_addrtype_inet(&saddr)) {
+ int type = (saddr.family == AF_INET) ? IFLA_VXLAN_LOCAL
+ : IFLA_VXLAN_LOCAL6;
+ addattr_l(n, 1024, type, saddr.data, saddr.bytelen);
+ selected_family = true;
+ }
+
+ if (is_addrtype_inet(&daddr)) {
+ int type = (daddr.family == AF_INET) ? IFLA_VXLAN_GROUP
+ : IFLA_VXLAN_GROUP6;
+ addattr_l(n, 1024, type, daddr.data, daddr.bytelen);
+ selected_family = true;
+ }
+
+ if (!selected_family) {
+ if (preferred_family == AF_INET) {
+ get_addr(&daddr, "default", AF_INET);
+ addattr_l(n, 1024, IFLA_VXLAN_GROUP,
+ daddr.data, daddr.bytelen);
+ } else if (preferred_family == AF_INET6) {
+ get_addr(&daddr, "default", AF_INET6);
+ addattr_l(n, 1024, IFLA_VXLAN_GROUP6,
+ daddr.data, daddr.bytelen);
+ }
+ }
+
+ if (!set_op || VXLAN_ATTRSET(attrs, IFLA_VXLAN_LEARNING))
+ addattr8(n, 1024, IFLA_VXLAN_LEARNING, learning);
+
+ if (dstport)
+ addattr16(n, 1024, IFLA_VXLAN_PORT, htons(dstport));
+
+ return 0;
+}
+
+static void vxlan_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
+{
+ __u8 ttl = 0;
+ __u8 tos = 0;
+ __u32 maxaddr;
+
+ if (!tb)
+ return;
+
+ if (tb[IFLA_VXLAN_COLLECT_METADATA] &&
+ rta_getattr_u8(tb[IFLA_VXLAN_COLLECT_METADATA])) {
+ print_bool(PRINT_ANY, "external", "external ", true);
+ }
+
+ if (tb[IFLA_VXLAN_VNIFILTER] &&
+ rta_getattr_u8(tb[IFLA_VXLAN_VNIFILTER])) {
+ print_bool(PRINT_ANY, "vnifilter", "vnifilter", true);
+ }
+
+ if (tb[IFLA_VXLAN_ID] &&
+ RTA_PAYLOAD(tb[IFLA_VXLAN_ID]) >= sizeof(__u32)) {
+ print_uint(PRINT_ANY, "id", "id %u ", rta_getattr_u32(tb[IFLA_VXLAN_ID]));
+ }
+
+ if (tb[IFLA_VXLAN_GROUP]) {
+ __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_GROUP]);
+
+ if (addr) {
+ if (IN_MULTICAST(ntohl(addr)))
+ print_string(PRINT_ANY,
+ "group",
+ "group %s ",
+ format_host(AF_INET, 4, &addr));
+ else
+ print_string(PRINT_ANY,
+ "remote",
+ "remote %s ",
+ format_host(AF_INET, 4, &addr));
+ }
+ } else if (tb[IFLA_VXLAN_GROUP6]) {
+ struct in6_addr addr;
+
+ memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_GROUP6]), sizeof(struct in6_addr));
+ if (!IN6_IS_ADDR_UNSPECIFIED(&addr)) {
+ if (IN6_IS_ADDR_MULTICAST(&addr))
+ print_string(PRINT_ANY,
+ "group6",
+ "group %s ",
+ format_host(AF_INET6,
+ sizeof(struct in6_addr),
+ &addr));
+ else
+ print_string(PRINT_ANY,
+ "remote6",
+ "remote %s ",
+ format_host(AF_INET6,
+ sizeof(struct in6_addr),
+ &addr));
+ }
+ }
+
+ if (tb[IFLA_VXLAN_LOCAL]) {
+ __be32 addr = rta_getattr_u32(tb[IFLA_VXLAN_LOCAL]);
+
+ if (addr)
+ print_string(PRINT_ANY,
+ "local",
+ "local %s ",
+ format_host(AF_INET, 4, &addr));
+ } else if (tb[IFLA_VXLAN_LOCAL6]) {
+ struct in6_addr addr;
+
+ memcpy(&addr, RTA_DATA(tb[IFLA_VXLAN_LOCAL6]), sizeof(struct in6_addr));
+ if (!IN6_IS_ADDR_UNSPECIFIED(&addr))
+ print_string(PRINT_ANY,
+ "local6",
+ "local %s ",
+ format_host(AF_INET6,
+ sizeof(struct in6_addr),
+ &addr));
+ }
+
+ if (tb[IFLA_VXLAN_LINK]) {
+ unsigned int link = rta_getattr_u32(tb[IFLA_VXLAN_LINK]);
+
+ if (link) {
+ print_string(PRINT_ANY, "link", "dev %s ",
+ ll_index_to_name(link));
+ }
+ }
+
+ if (tb[IFLA_VXLAN_PORT_RANGE]) {
+ const struct ifla_vxlan_port_range *r
+ = RTA_DATA(tb[IFLA_VXLAN_PORT_RANGE]);
+ if (is_json_context()) {
+ open_json_object("port_range");
+ print_uint(PRINT_JSON, "low", NULL, ntohs(r->low));
+ print_uint(PRINT_JSON, "high", NULL, ntohs(r->high));
+ close_json_object();
+ } else {
+ fprintf(f, "srcport %u %u ",
+ ntohs(r->low), ntohs(r->high));
+ }
+ }
+
+ if (tb[IFLA_VXLAN_PORT])
+ print_uint(PRINT_ANY,
+ "port",
+ "dstport %u ",
+ rta_getattr_be16(tb[IFLA_VXLAN_PORT]));
+
+ if (tb[IFLA_VXLAN_LEARNING]) {
+ __u8 learning = rta_getattr_u8(tb[IFLA_VXLAN_LEARNING]);
+
+ print_bool(PRINT_JSON, "learning", NULL, learning);
+ if (!learning)
+ print_bool(PRINT_FP, NULL, "nolearning ", true);
+ }
+
+ if (tb[IFLA_VXLAN_PROXY] && rta_getattr_u8(tb[IFLA_VXLAN_PROXY]))
+ print_bool(PRINT_ANY, "proxy", "proxy ", true);
+
+ if (tb[IFLA_VXLAN_RSC] && rta_getattr_u8(tb[IFLA_VXLAN_RSC]))
+ print_bool(PRINT_ANY, "rsc", "rsc ", true);
+
+ if (tb[IFLA_VXLAN_L2MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L2MISS]))
+ print_bool(PRINT_ANY, "l2miss", "l2miss ", true);
+
+ if (tb[IFLA_VXLAN_L3MISS] && rta_getattr_u8(tb[IFLA_VXLAN_L3MISS]))
+ print_bool(PRINT_ANY, "l3miss", "l3miss ", true);
+
+ if (tb[IFLA_VXLAN_TOS])
+ tos = rta_getattr_u8(tb[IFLA_VXLAN_TOS]);
+ if (tos) {
+ if (is_json_context() || tos != 1)
+ print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos);
+ else
+ print_string(PRINT_FP, NULL, "tos %s ", "inherit");
+ }
+
+ if (tb[IFLA_VXLAN_TTL_INHERIT] &&
+ rta_getattr_u8(tb[IFLA_VXLAN_TTL_INHERIT])) {
+ print_string(PRINT_FP, NULL, "ttl %s ", "inherit");
+ } else if (tb[IFLA_VXLAN_TTL]) {
+ ttl = rta_getattr_u8(tb[IFLA_VXLAN_TTL]);
+ if (is_json_context() || ttl)
+ print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl);
+ else
+ print_string(PRINT_FP, NULL, "ttl %s ", "auto");
+ }
+
+ if (tb[IFLA_VXLAN_DF]) {
+ enum ifla_vxlan_df df = rta_getattr_u8(tb[IFLA_VXLAN_DF]);
+
+ if (df == VXLAN_DF_UNSET)
+ print_string(PRINT_JSON, "df", "df %s ", "unset");
+ else if (df == VXLAN_DF_SET)
+ print_string(PRINT_ANY, "df", "df %s ", "set");
+ else if (df == VXLAN_DF_INHERIT)
+ print_string(PRINT_ANY, "df", "df %s ", "inherit");
+ }
+
+ if (tb[IFLA_VXLAN_LABEL]) {
+ __u32 label = rta_getattr_u32(tb[IFLA_VXLAN_LABEL]);
+
+ if (label)
+ print_0xhex(PRINT_ANY, "label",
+ "flowlabel %#llx ", ntohl(label));
+ }
+
+ if (tb[IFLA_VXLAN_AGEING]) {
+ __u32 age = rta_getattr_u32(tb[IFLA_VXLAN_AGEING]);
+
+ if (age == 0)
+ print_uint(PRINT_ANY, "ageing", "ageing none ", 0);
+ else
+ print_uint(PRINT_ANY, "ageing", "ageing %u ", age);
+ }
+
+ if (tb[IFLA_VXLAN_LIMIT] &&
+ ((maxaddr = rta_getattr_u32(tb[IFLA_VXLAN_LIMIT])) != 0))
+ print_uint(PRINT_ANY, "limit", "maxaddr %u ", maxaddr);
+
+ if (tb[IFLA_VXLAN_UDP_CSUM]) {
+ __u8 udp_csum = rta_getattr_u8(tb[IFLA_VXLAN_UDP_CSUM]);
+
+ if (is_json_context()) {
+ print_bool(PRINT_ANY, "udp_csum", NULL, udp_csum);
+ } else {
+ if (!udp_csum)
+ fputs("no", f);
+ fputs("udpcsum ", f);
+ }
+ }
+
+ if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]) {
+ __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_TX]);
+
+ if (is_json_context()) {
+ print_bool(PRINT_ANY,
+ "udp_zero_csum6_tx", NULL, csum6);
+ } else {
+ if (!csum6)
+ fputs("no", f);
+ fputs("udp6zerocsumtx ", f);
+ }
+ }
+
+ if (tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]) {
+ __u8 csum6 = rta_getattr_u8(tb[IFLA_VXLAN_UDP_ZERO_CSUM6_RX]);
+
+ if (is_json_context()) {
+ print_bool(PRINT_ANY,
+ "udp_zero_csum6_rx",
+ NULL,
+ csum6);
+ } else {
+ if (!csum6)
+ fputs("no", f);
+ fputs("udp6zerocsumrx ", f);
+ }
+ }
+
+ if (tb[IFLA_VXLAN_REMCSUM_TX] &&
+ rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_TX]))
+ print_bool(PRINT_ANY, "remcsum_tx", "remcsumtx ", true);
+
+ if (tb[IFLA_VXLAN_REMCSUM_RX] &&
+ rta_getattr_u8(tb[IFLA_VXLAN_REMCSUM_RX]))
+ print_bool(PRINT_ANY, "remcsum_rx", "remcsumrx ", true);
+
+ if (tb[IFLA_VXLAN_GBP])
+ print_bool(PRINT_ANY, "gbp", "gbp ", true);
+ if (tb[IFLA_VXLAN_GPE])
+ print_bool(PRINT_ANY, "gpe", "gpe ", true);
+}
+
+static void vxlan_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
+{
+ print_explain(f);
+}
+
+struct link_util vxlan_link_util = {
+ .id = "vxlan",
+ .maxattr = IFLA_VXLAN_MAX,
+ .parse_opt = vxlan_parse_opt,
+ .print_opt = vxlan_print_opt,
+ .print_help = vxlan_print_help,
+};