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Diffstat (limited to '')
| -rw-r--r-- | ip/iplink_vxlan.c | 674 |
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, +}; |