19#include "nl-default.h"
21#include <linux/if_tunnel.h>
23#include <netlink/netlink.h>
24#include <netlink/attr.h>
25#include <netlink/utils.h>
26#include <netlink/object.h>
27#include <netlink/route/rtnl.h>
28#include <netlink/route/link/ipip.h>
33#define IPIP_ATTR_LINK (1 << 0)
34#define IPIP_ATTR_LOCAL (1 << 1)
35#define IPIP_ATTR_REMOTE (1 << 2)
36#define IPIP_ATTR_TTL (1 << 3)
37#define IPIP_ATTR_TOS (1 << 4)
38#define IPIP_ATTR_PMTUDISC (1 << 5)
39#define IPIP_ATTR_FWMARK (1 << 6)
53static struct nla_policy ipip_policy[IFLA_IPTUN_MAX + 1] = {
55 [IFLA_IPTUN_LOCAL] = { .type =
NLA_U32 },
56 [IFLA_IPTUN_REMOTE] = { .type =
NLA_U32 },
57 [IFLA_IPTUN_TTL] = { .type =
NLA_U8 },
58 [IFLA_IPTUN_TOS] = { .type =
NLA_U8 },
59 [IFLA_IPTUN_PMTUDISC] = { .type =
NLA_U8 },
60 [IFLA_IPTUN_FWMARK] = { .type =
NLA_U32 },
63static int ipip_alloc(
struct rtnl_link *link)
68 memset(link->l_info, 0,
sizeof(*ipip));
70 ipip = calloc(1,
sizeof(*ipip));
80static int ipip_parse(
struct rtnl_link *link,
struct nlattr *data,
81 struct nlattr *xstats)
83 struct nlattr *tb[IFLA_IPTUN_MAX + 1];
87 NL_DBG(3,
"Parsing IPIP link info\n");
93 err = ipip_alloc(link);
99 if (tb[IFLA_IPTUN_LINK]) {
101 ipip->ipip_mask |= IPIP_ATTR_LINK;
104 if (tb[IFLA_IPTUN_LOCAL]) {
106 ipip->ipip_mask |= IPIP_ATTR_LOCAL;
109 if (tb[IFLA_IPTUN_REMOTE]) {
111 ipip->ipip_mask |= IPIP_ATTR_REMOTE;
114 if (tb[IFLA_IPTUN_TTL]) {
116 ipip->ipip_mask |= IPIP_ATTR_TTL;
119 if (tb[IFLA_IPTUN_TOS]) {
121 ipip->ipip_mask |= IPIP_ATTR_TOS;
124 if (tb[IFLA_IPTUN_PMTUDISC]) {
125 ipip->pmtudisc =
nla_get_u8(tb[IFLA_IPTUN_PMTUDISC]);
126 ipip->ipip_mask |= IPIP_ATTR_PMTUDISC;
129 if (tb[IFLA_IPTUN_FWMARK]) {
131 ipip->ipip_mask |= IPIP_ATTR_FWMARK;
140static int ipip_put_attrs(
struct nl_msg *msg,
struct rtnl_link *link)
149 if (ipip->ipip_mask & IPIP_ATTR_LINK)
152 if (ipip->ipip_mask & IPIP_ATTR_LOCAL)
155 if (ipip->ipip_mask & IPIP_ATTR_REMOTE)
158 if (ipip->ipip_mask & IPIP_ATTR_TTL)
161 if (ipip->ipip_mask & IPIP_ATTR_TOS)
164 if (ipip->ipip_mask & IPIP_ATTR_PMTUDISC)
165 NLA_PUT_U8(msg, IFLA_IPTUN_PMTUDISC, ipip->pmtudisc);
167 if (ipip->ipip_mask & IPIP_ATTR_FWMARK)
176static void ipip_free(
struct rtnl_link *link)
186 nl_dump(p,
"ipip : %s", link->l_name);
192 char *name, addr[INET_ADDRSTRLEN];
195 if (ipip->ipip_mask & IPIP_ATTR_LINK) {
199 parent = link_lookup(link->ce_cache, ipip->link);
204 nl_dump_line(p,
"%s\n", name);
206 nl_dump_line(p,
"%u\n", ipip->link);
209 if (ipip->ipip_mask & IPIP_ATTR_LOCAL) {
211 if(inet_ntop(AF_INET, &ipip->local, addr,
sizeof(addr)))
212 nl_dump_line(p,
"%s\n", addr);
214 nl_dump_line(p,
"%#x\n", ntohs(ipip->local));
217 if (ipip->ipip_mask & IPIP_ATTR_REMOTE) {
219 if(inet_ntop(AF_INET, &ipip->remote, addr,
sizeof(addr)))
220 nl_dump_line(p,
"%s\n", addr);
222 nl_dump_line(p,
"%#x\n", ntohs(ipip->remote));
225 if (ipip->ipip_mask & IPIP_ATTR_TTL) {
227 nl_dump_line(p,
"%u\n", ipip->ttl);
230 if (ipip->ipip_mask & IPIP_ATTR_TOS) {
232 nl_dump_line(p,
"%u\n", ipip->tos);
235 if (ipip->ipip_mask & IPIP_ATTR_PMTUDISC) {
237 nl_dump_line(p,
"enabled (%#x)\n", ipip->pmtudisc);
240 if (ipip->ipip_mask & IPIP_ATTR_FWMARK) {
242 nl_dump_line(p,
"%x\n", ipip->fwmark);
248 struct ipip_info *ipip_dst, *ipip_src = src->l_info;
257 ipip_dst = dst->l_info;
259 if (!ipip_dst || !ipip_src)
262 memcpy(ipip_dst, ipip_src,
sizeof(
struct ipip_info));
269 .io_alloc = ipip_alloc,
270 .io_parse = ipip_parse,
275 .io_clone = ipip_clone,
276 .io_put_attrs = ipip_put_attrs,
277 .io_free = ipip_free,
280#define IS_IPIP_LINK_ASSERT(link) \
281 if ((link)->l_info_ops != &ipip_info_ops) { \
282 APPBUG("Link is not a ipip link. set type \"ipip\" first."); \
283 return -NLE_OPNOTSUPP; \
286struct rtnl_link *rtnl_link_ipip_alloc(
void)
312 return link->l_info_ops && !strcmp(link->l_info_ops->
io_name,
"ipip");
328 link = rtnl_link_ipip_alloc();
352 IS_IPIP_LINK_ASSERT(link);
355 ipip->ipip_mask |= IPIP_ATTR_LINK;
370 IS_IPIP_LINK_ASSERT(link);
386 IS_IPIP_LINK_ASSERT(link);
389 ipip->ipip_mask |= IPIP_ATTR_LOCAL;
404 IS_IPIP_LINK_ASSERT(link);
420 IS_IPIP_LINK_ASSERT(link);
423 ipip->ipip_mask |= IPIP_ATTR_REMOTE;
438 IS_IPIP_LINK_ASSERT(link);
454 IS_IPIP_LINK_ASSERT(link);
457 ipip->ipip_mask |= IPIP_ATTR_TTL;
472 IS_IPIP_LINK_ASSERT(link);
488 IS_IPIP_LINK_ASSERT(link);
491 ipip->ipip_mask |= IPIP_ATTR_TOS;
506 IS_IPIP_LINK_ASSERT(link);
522 IS_IPIP_LINK_ASSERT(link);
524 ipip->pmtudisc = pmtudisc;
525 ipip->ipip_mask |= IPIP_ATTR_PMTUDISC;
540 IS_IPIP_LINK_ASSERT(link);
542 return ipip->pmtudisc;
556 IS_IPIP_LINK_ASSERT(link);
558 ipip->fwmark = fwmark;
559 ipip->ipip_mask |= IPIP_ATTR_FWMARK;
575 IS_IPIP_LINK_ASSERT(link);
577 if (!(ipip->ipip_mask & IPIP_ATTR_FWMARK))
580 *fwmark = ipip->fwmark;
585static void _nl_init ipip_init(
void)
590static void _nl_exit ipip_exit(
void)
uint32_t nla_get_u32(const struct nlattr *nla)
Return payload of 32 bit integer attribute.
#define NLA_PUT_U8(msg, attrtype, value)
Add 8 bit integer attribute to netlink message.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
uint8_t nla_get_u8(const struct nlattr *nla)
Return value of 8 bit integer attribute.
struct nlattr * nla_nest_start(struct nl_msg *msg, int attrtype)
Start a new level of nested attributes.
int nla_parse_nested(struct nlattr *tb[], int maxtype, struct nlattr *nla, const struct nla_policy *policy)
Create attribute index based on nested attribute.
int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
Finalize nesting of attributes.
int rtnl_link_ipip_set_tos(struct rtnl_link *link, uint8_t tos)
Set IPIP tunnel tos.
int rtnl_link_ipip_set_local(struct rtnl_link *link, uint32_t addr)
Set IPIP tunnel local address.
int rtnl_link_ipip_set_remote(struct rtnl_link *link, uint32_t addr)
Set IPIP tunnel remote address.
uint32_t rtnl_link_ipip_get_remote(struct rtnl_link *link)
Get IPIP tunnel remote address.
uint32_t rtnl_link_ipip_get_local(struct rtnl_link *link)
Get IPIP tunnel local address.
int rtnl_link_ipip_set_ttl(struct rtnl_link *link, uint8_t ttl)
Set IPIP tunnel ttl.
int rtnl_link_ipip_set_fwmark(struct rtnl_link *link, uint32_t fwmark)
Set IPIP tunnel fwmark.
int rtnl_link_ipip_add(struct nl_sock *sk, const char *name)
Create a new ipip tunnel device.
int rtnl_link_ipip_set_link(struct rtnl_link *link, uint32_t index)
Set IPIP tunnel interface index.
int rtnl_link_is_ipip(struct rtnl_link *link)
Check if link is a IPIP link.
uint8_t rtnl_link_ipip_get_ttl(struct rtnl_link *link)
Get IPIP tunnel ttl.
int rtnl_link_ipip_set_pmtudisc(struct rtnl_link *link, uint8_t pmtudisc)
Set IPIP tunnel path MTU discovery.
uint8_t rtnl_link_ipip_get_tos(struct rtnl_link *link)
Get IPIP tunnel tos.
uint32_t rtnl_link_ipip_get_link(struct rtnl_link *link)
Get IPIP tunnel interface index.
int rtnl_link_ipip_get_fwmark(struct rtnl_link *link, uint32_t *fwmark)
Get IPIP tunnel fwmark.
uint8_t rtnl_link_ipip_get_pmtudisc(struct rtnl_link *link)
Get IPIP path MTU discovery.
int rtnl_link_register_info(struct rtnl_link_info_ops *ops)
Register operations for a link info type.
int rtnl_link_unregister_info(struct rtnl_link_info_ops *ops)
Unregister operations for a link info type.
int rtnl_link_add(struct nl_sock *sk, struct rtnl_link *link, int flags)
Add virtual link.
struct rtnl_link * rtnl_link_alloc(void)
Allocate link object.
void rtnl_link_set_name(struct rtnl_link *link, const char *name)
Set name of link object.
char * rtnl_link_get_name(struct rtnl_link *link)
Return name of link object.
void rtnl_link_put(struct rtnl_link *link)
Release a link object reference.
int rtnl_link_set_type(struct rtnl_link *link, const char *type)
Set type of link object.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
@ NL_DUMP_LINE
Dump object briefly on one line.
@ NL_DUMP_DETAILS
Dump all attributes but no statistics.
Attribute validation policy.
uint16_t type
Type of attribute or NLA_UNSPEC.
Available operations to modules implementing a link info type.
char * io_name
Name of link info type, must match name on kernel side.