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700 lines
16 KiB
700 lines
16 KiB
/*
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* lib/route/link/ip6tnl.c IP6TNL Link Info
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2014 Susant Sahani <susant@redhat.com>
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*/
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/**
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* @ingroup link
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* @defgroup ip6tnl IP6TNL
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* ip6tnl link module
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*
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* @details
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* \b Link Type Name: "ip6tnl"
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*
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* @route_doc{link_ip6tnl, IP6TNL Documentation}
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*
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* @{
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*/
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#include <netlink-private/netlink.h>
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#include <netlink/netlink.h>
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#include <netlink/attr.h>
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#include <netlink/utils.h>
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#include <netlink/object.h>
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#include <netlink/route/rtnl.h>
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#include <netlink/route/link/ip6tnl.h>
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#include <netlink-private/route/link/api.h>
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#include <linux/if_tunnel.h>
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#include <netinet/in.h>
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#define IP6_TNL_ATTR_LINK (1 << 0)
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#define IP6_TNL_ATTR_LOCAL (1 << 1)
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#define IP6_TNL_ATTR_REMOTE (1 << 2)
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#define IP6_TNL_ATTR_TTL (1 << 3)
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#define IP6_TNL_ATTR_TOS (1 << 4)
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#define IP6_TNL_ATTR_ENCAPLIMIT (1 << 5)
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#define IP6_TNL_ATTR_FLAGS (1 << 6)
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#define IP6_TNL_ATTR_PROTO (1 << 7)
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#define IP6_TNL_ATTR_FLOWINFO (1 << 8)
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struct ip6_tnl_info
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{
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uint8_t ttl;
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uint8_t tos;
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uint8_t encap_limit;
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uint8_t proto;
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uint32_t flags;
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uint32_t link;
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uint32_t flowinfo;
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struct in6_addr local;
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struct in6_addr remote;
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uint32_t ip6_tnl_mask;
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};
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static struct nla_policy ip6_tnl_policy[IFLA_IPTUN_MAX + 1] = {
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[IFLA_IPTUN_LINK] = { .type = NLA_U32 },
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[IFLA_IPTUN_LOCAL] = { .minlen = sizeof(struct in6_addr) },
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[IFLA_IPTUN_REMOTE] = { .minlen = sizeof(struct in6_addr) },
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[IFLA_IPTUN_TTL] = { .type = NLA_U8 },
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[IFLA_IPTUN_TOS] = { .type = NLA_U8 },
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[IFLA_IPTUN_ENCAP_LIMIT] = { .type = NLA_U8 },
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[IFLA_IPTUN_FLOWINFO] = { .type = NLA_U32 },
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[IFLA_IPTUN_FLAGS] = { .type = NLA_U32 },
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[IFLA_IPTUN_PROTO] = { .type = NLA_U8 },
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};
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static int ip6_tnl_alloc(struct rtnl_link *link)
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{
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struct ip6_tnl_info *ip6_tnl;
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if (link->l_info)
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memset(link->l_info, 0, sizeof(*ip6_tnl));
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else {
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ip6_tnl = calloc(1, sizeof(*ip6_tnl));
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if (!ip6_tnl)
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return -NLE_NOMEM;
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link->l_info = ip6_tnl;
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}
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return 0;
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}
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static int ip6_tnl_parse(struct rtnl_link *link, struct nlattr *data,
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struct nlattr *xstats)
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{
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struct nlattr *tb[IFLA_IPTUN_MAX + 1];
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struct ip6_tnl_info *ip6_tnl;
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int err;
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NL_DBG(3, "Parsing IP6_TNL link info\n");
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err = nla_parse_nested(tb, IFLA_IPTUN_MAX, data, ip6_tnl_policy);
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if (err < 0)
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goto errout;
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err = ip6_tnl_alloc(link);
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if (err < 0)
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goto errout;
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ip6_tnl = link->l_info;
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if (tb[IFLA_IPTUN_LINK]) {
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ip6_tnl->link = nla_get_u32(tb[IFLA_IPTUN_LINK]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_LINK;
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}
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if (tb[IFLA_IPTUN_LOCAL]) {
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nla_memcpy(&ip6_tnl->local, tb[IFLA_IPTUN_LOCAL], sizeof(struct in6_addr));
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_LOCAL;
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}
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if (tb[IFLA_IPTUN_REMOTE]) {
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nla_memcpy(&ip6_tnl->remote, tb[IFLA_IPTUN_REMOTE], sizeof(struct in6_addr));
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_REMOTE;
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}
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if (tb[IFLA_IPTUN_TTL]) {
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ip6_tnl->ttl = nla_get_u8(tb[IFLA_IPTUN_TTL]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_TTL;
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}
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if (tb[IFLA_IPTUN_TOS]) {
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ip6_tnl->tos = nla_get_u8(tb[IFLA_IPTUN_TOS]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_TOS;
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}
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if (tb[IFLA_IPTUN_ENCAP_LIMIT]) {
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ip6_tnl->encap_limit = nla_get_u8(tb[IFLA_IPTUN_ENCAP_LIMIT]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_ENCAPLIMIT;
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}
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if (tb[IFLA_IPTUN_FLAGS]) {
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ip6_tnl->flags = nla_get_u32(tb[IFLA_IPTUN_FLAGS]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_FLAGS;
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}
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if (tb[IFLA_IPTUN_FLOWINFO]) {
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ip6_tnl->flowinfo = nla_get_u32(tb[IFLA_IPTUN_FLOWINFO]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_FLOWINFO;
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}
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if (tb[IFLA_IPTUN_PROTO]) {
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ip6_tnl->proto = nla_get_u8(tb[IFLA_IPTUN_PROTO]);
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_PROTO;
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}
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err = 0;
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errout:
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return err;
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}
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static int ip6_tnl_put_attrs(struct nl_msg *msg, struct rtnl_link *link)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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struct nlattr *data;
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data = nla_nest_start(msg, IFLA_INFO_DATA);
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if (!data)
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return -NLE_MSGSIZE;
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_LINK)
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NLA_PUT_U32(msg, IFLA_IPTUN_LINK, ip6_tnl->link);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_LOCAL)
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NLA_PUT(msg, IFLA_IPTUN_LOCAL, sizeof(struct in6_addr), &ip6_tnl->local);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_REMOTE)
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NLA_PUT(msg, IFLA_IPTUN_REMOTE, sizeof(struct in6_addr), &ip6_tnl->remote);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_TTL)
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NLA_PUT_U8(msg, IFLA_IPTUN_TTL, ip6_tnl->ttl);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_TOS)
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NLA_PUT_U8(msg, IFLA_IPTUN_TOS, ip6_tnl->tos);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_ENCAPLIMIT)
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NLA_PUT_U8(msg, IFLA_IPTUN_ENCAP_LIMIT, ip6_tnl->encap_limit);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_FLAGS)
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NLA_PUT_U32(msg, IFLA_IPTUN_FLAGS, ip6_tnl->flags);
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_FLOWINFO)
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NLA_PUT_U32(msg, IFLA_IPTUN_FLOWINFO, ip6_tnl->flowinfo);
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/* kernel crashes if this attribure is missing temporary fix */
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_PROTO)
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NLA_PUT_U8(msg, IFLA_IPTUN_PROTO, ip6_tnl->proto);
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else
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NLA_PUT_U8(msg, IFLA_IPTUN_PROTO, 0);
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nla_nest_end(msg, data);
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nla_put_failure:
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return 0;
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}
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static void ip6_tnl_free(struct rtnl_link *link)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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free(ip6_tnl);
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link->l_info = NULL;
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}
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static void ip6_tnl_dump_line(struct rtnl_link *link, struct nl_dump_params *p)
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{
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nl_dump(p, "ip6_tnl : %s", link->l_name);
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}
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static void ip6_tnl_dump_details(struct rtnl_link *link, struct nl_dump_params *p)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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char *name, addr[INET6_ADDRSTRLEN];
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struct rtnl_link *parent;
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_LINK) {
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nl_dump(p, " link ");
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name = NULL;
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parent = link_lookup(link->ce_cache, ip6_tnl->link);
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if (parent)
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name = rtnl_link_get_name(parent);
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if (name)
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nl_dump_line(p, "%s\n", name);
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else
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nl_dump_line(p, "%u\n", ip6_tnl->link);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_LOCAL) {
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nl_dump(p, " local ");
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if(inet_ntop(AF_INET6, &ip6_tnl->local, addr, INET6_ADDRSTRLEN))
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nl_dump_line(p, "%s\n", addr);
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else
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nl_dump_line(p, "%#x\n", ip6_tnl->local);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_REMOTE) {
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nl_dump(p, " remote ");
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if(inet_ntop(AF_INET6, &ip6_tnl->remote, addr, INET6_ADDRSTRLEN))
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nl_dump_line(p, "%s\n", addr);
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else
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nl_dump_line(p, "%#x\n", ip6_tnl->remote);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_TTL) {
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nl_dump(p, " ttl ");
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nl_dump_line(p, "%d\n", ip6_tnl->ttl);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_TOS) {
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nl_dump(p, " tos ");
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nl_dump_line(p, "%d\n", ip6_tnl->tos);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_ENCAPLIMIT) {
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nl_dump(p, " encaplimit ");
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nl_dump_line(p, "%d\n", ip6_tnl->encap_limit);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_FLAGS) {
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nl_dump(p, " flags ");
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nl_dump_line(p, " (%x)\n", ip6_tnl->flags);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_FLOWINFO) {
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nl_dump(p, " flowinfo ");
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nl_dump_line(p, " (%x)\n", ip6_tnl->flowinfo);
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}
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if (ip6_tnl->ip6_tnl_mask & IP6_TNL_ATTR_PROTO) {
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nl_dump(p, " proto ");
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nl_dump_line(p, " (%x)\n", ip6_tnl->proto);
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}
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}
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static int ip6_tnl_clone(struct rtnl_link *dst, struct rtnl_link *src)
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{
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struct ip6_tnl_info *ip6_tnl_dst, *ip6_tnl_src = src->l_info;
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int err;
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dst->l_info = NULL;
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err = rtnl_link_set_type(dst, "ip6tnl");
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if (err < 0)
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return err;
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ip6_tnl_dst = dst->l_info;
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if (!ip6_tnl_dst || !ip6_tnl_src)
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BUG();
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memcpy(ip6_tnl_dst, ip6_tnl_src, sizeof(struct ip6_tnl_info));
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return 0;
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}
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static struct rtnl_link_info_ops ip6_tnl_info_ops = {
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.io_name = "ip6tnl",
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.io_alloc = ip6_tnl_alloc,
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.io_parse = ip6_tnl_parse,
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.io_dump = {
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[NL_DUMP_LINE] = ip6_tnl_dump_line,
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[NL_DUMP_DETAILS] = ip6_tnl_dump_details,
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},
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.io_clone = ip6_tnl_clone,
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.io_put_attrs = ip6_tnl_put_attrs,
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.io_free = ip6_tnl_free,
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};
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#define IS_IP6_TNL_LINK_ASSERT(link)\
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if ((link)->l_info_ops != &ip6_tnl_info_ops) {\
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APPBUG("Link is not a ip6_tnl link. set type \"ip6tnl\" first.");\
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return -NLE_OPNOTSUPP;\
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}
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struct rtnl_link *rtnl_link_ip6_tnl_alloc(void)
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{
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struct rtnl_link *link;
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int err;
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link = rtnl_link_alloc();
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if (!link)
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return NULL;
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err = rtnl_link_set_type(link, "ip6tnl");
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if (err < 0) {
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rtnl_link_put(link);
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return NULL;
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}
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return link;
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}
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/**
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* Check if link is a IP6_TNL link
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* @arg link Link object
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*
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* @return True if link is a IP6_TNL link, otherwise false is returned.
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*/
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int rtnl_link_is_ip6_tnl(struct rtnl_link *link)
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{
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return link->l_info_ops && !strcmp(link->l_info_ops->io_name, "ip6tnl");
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}
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/**
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* Create a new ip6_tnl tunnel device
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* @arg sock netlink socket
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* @arg name name of the tunnel device
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*
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* Creates a new ip6_tnl tunnel device in the kernel
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* @return 0 on success or a negative error code
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*/
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int rtnl_link_ip6_tnl_add(struct nl_sock *sk, const char *name)
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{
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struct rtnl_link *link;
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int err;
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link = rtnl_link_ip6_tnl_alloc();
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if (!link)
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return -NLE_NOMEM;
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if(name)
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rtnl_link_set_name(link, name);
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err = rtnl_link_add(sk, link, NLM_F_CREATE);
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rtnl_link_put(link);
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return err;
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}
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/**
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* Set IP6_TNL tunnel interface index
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* @arg link Link object
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* @arg index interface index
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*
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* @return 0 on success or a negative error code
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*/
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int rtnl_link_ip6_tnl_set_link(struct rtnl_link *link, uint32_t index)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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IS_IP6_TNL_LINK_ASSERT(link);
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ip6_tnl->link = index;
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_LINK;
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return 0;
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}
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/**
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* Get IP6_TNL tunnel interface index
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* @arg link Link object
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*
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* @return interface index value
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*/
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uint32_t rtnl_link_ip6_tnl_get_link(struct rtnl_link *link)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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IS_IP6_TNL_LINK_ASSERT(link);
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return ip6_tnl->link;
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}
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/**
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* Set IP6_TNL tunnel local address
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* @arg link Link object
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* @arg addr local address
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*
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* @return 0 on success or a negative error code
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*/
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int rtnl_link_ip6_tnl_set_local(struct rtnl_link *link, struct in6_addr *addr)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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IS_IP6_TNL_LINK_ASSERT(link);
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memcpy(&ip6_tnl->local, addr, sizeof(struct in6_addr));
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_LOCAL;
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return 0;
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}
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/**
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* Get IP6_TNL tunnel local address
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* @arg link Link object
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*
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* @return 0 on success or a negative error code
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*/
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int rtnl_link_ip6_tnl_get_local(struct rtnl_link *link, struct in6_addr *addr)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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IS_IP6_TNL_LINK_ASSERT(link);
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memcpy(addr, &ip6_tnl->local, sizeof(struct in6_addr));
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return 0;
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}
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/**
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* Set IP6_TNL tunnel remote address
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* @arg link Link object
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* @arg remote remote address
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*
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* @return 0 on success or a negative error code
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*/
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int rtnl_link_ip6_tnl_set_remote(struct rtnl_link *link, struct in6_addr *addr)
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{
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struct ip6_tnl_info *ip6_tnl = link->l_info;
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IS_IP6_TNL_LINK_ASSERT(link);
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memcpy(&ip6_tnl->remote, addr, sizeof(struct in6_addr));
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ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_REMOTE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL tunnel remote address
|
|
* @arg link Link object
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_get_remote(struct rtnl_link *link, struct in6_addr *addr)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
memcpy(addr, &ip6_tnl->remote, sizeof(struct in6_addr));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel ttl
|
|
* @arg link Link object
|
|
* @arg ttl tunnel ttl
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_ttl(struct rtnl_link *link, uint8_t ttl)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->ttl = ttl;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_TTL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL tunnel ttl
|
|
* @arg link Link object
|
|
*
|
|
* @return ttl value
|
|
*/
|
|
uint8_t rtnl_link_ip6_tnl_get_ttl(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->ttl;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel tos
|
|
* @arg link Link object
|
|
* @arg tos tunnel tos
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_tos(struct rtnl_link *link, uint8_t tos)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->tos = tos;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_TOS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL tunnel tos
|
|
* @arg link Link object
|
|
*
|
|
* @return tos value
|
|
*/
|
|
uint8_t rtnl_link_ip6_tnl_get_tos(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->tos;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel encap limit
|
|
* @arg link Link object
|
|
* @arg encap_limit encaplimit value
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_encaplimit(struct rtnl_link *link, uint8_t encap_limit)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->encap_limit = encap_limit;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_ENCAPLIMIT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL encaplimit
|
|
* @arg link Link object
|
|
*
|
|
* @return encaplimit value
|
|
*/
|
|
uint8_t rtnl_link_ip6_tnl_get_encaplimit(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->encap_limit;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel flowinfo
|
|
* @arg link Link object
|
|
* @arg flowinfo flowinfo value
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_flowinfo(struct rtnl_link *link, uint32_t flowinfo)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->flowinfo = flowinfo;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_FLOWINFO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL flowinfo
|
|
* @arg link Link object
|
|
*
|
|
* @return flowinfo value
|
|
*/
|
|
uint32_t rtnl_link_ip6_tnl_get_flowinfo(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->flowinfo;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel flags
|
|
* @arg link Link object
|
|
* @arg flags tunnel flags
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_flags(struct rtnl_link *link, uint32_t flags)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->flags = flags;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_FLAGS;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL path flags
|
|
* @arg link Link object
|
|
*
|
|
* @return flags value
|
|
*/
|
|
uint32_t rtnl_link_ip6_tnl_get_flags(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->flags;
|
|
}
|
|
|
|
/**
|
|
* Set IP6_TNL tunnel proto
|
|
* @arg link Link object
|
|
* @arg proto tunnel proto
|
|
*
|
|
* @return 0 on success or a negative error code
|
|
*/
|
|
int rtnl_link_ip6_tnl_set_proto(struct rtnl_link *link, uint8_t proto)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
ip6_tnl->proto = proto;
|
|
ip6_tnl->ip6_tnl_mask |= IP6_TNL_ATTR_PROTO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Get IP6_TNL proto
|
|
* @arg link Link object
|
|
*
|
|
* @return proto value
|
|
*/
|
|
uint8_t rtnl_link_ip6_tnl_get_proto(struct rtnl_link *link)
|
|
{
|
|
struct ip6_tnl_info *ip6_tnl = link->l_info;
|
|
|
|
IS_IP6_TNL_LINK_ASSERT(link);
|
|
|
|
return ip6_tnl->proto;
|
|
}
|
|
|
|
static void __init ip6_tnl_init(void)
|
|
{
|
|
rtnl_link_register_info(&ip6_tnl_info_ops);
|
|
}
|
|
|
|
static void __exit ip6_tnl_exit(void)
|
|
{
|
|
rtnl_link_unregister_info(&ip6_tnl_info_ops);
|
|
}
|