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| author | Susant Sahani <susant@redhat.com> | 2014-04-25 22:51:22 +0530 |
|---|---|---|
| committer | Thomas Haller <thaller@redhat.com> | 2014-05-05 19:08:23 +0200 |
| commit | 57bdc4ff4895dd91cc723d22eecadcf48945e87c (patch) | |
| tree | 345995ee149e0a6485950d0360f523333a115826 /doc | |
| parent | 3a95fad5c92031201eeb83786057249f237c56ce (diff) | |
| download | libnl-57bdc4ff4895dd91cc723d22eecadcf48945e87c.tar.gz | |
introduce gre tunnel support
This patch introduces gre tunnel support
Signed-off-by: Susant Sahani <susant@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
[thaller@redhat.com: change WS to TAB, fix code doc]
Signed-off-by: Thomas Haller <thaller@redhat.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/route.txt | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/doc/route.txt b/doc/route.txt index e5f06f75..746201a3 100644 --- a/doc/route.txt +++ b/doc/route.txt @@ -924,6 +924,85 @@ if((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) rtnl_link_put(link); ----- +[[link_ipgre]] +==== IPGRE + +[source,c] +----- +extern struct rtnl_link *rtnl_link_ipgre_alloc(void); +extern int rtnl_link_ipgre_add(struct nl_sock *sk, const char *name); + +extern int rtnl_link_ipgre_set_link(struct rtnl_link *link, uint32_t index); +extern uint32_t rtnl_link_ipgre_get_link(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_iflags(struct rtnl_link *link, uint16_t iflags); +extern uint16_t rtnl_link_get_iflags(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_oflags(struct rtnl_link *link, uint16_t oflags); +extern uint16_t rtnl_link_get_oflags(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_ikey(struct rtnl_link *link, uint32_t ikey); +extern uint32_t rtnl_link_get_ikey(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_okey(struct rtnl_link *link, uint32_t okey); +extern uint32_t rtnl_link_get_okey(struct rtnl_link *link) + +extern int rtnl_link_ipgre_set_local(struct rtnl_link *link, uint32_t addr); +extern uint32_t rtnl_link_ipgre_get_local(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_remote(struct rtnl_link *link, uint32_t addr); +extern uint32_t rtnl_link_ipgre_get_remote(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_ttl(struct rtnl_link *link, uint8_t ttl); +extern uint8_t rtnl_link_ipgre_get_ttl(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_tos(struct rtnl_link *link, uint8_t tos); +extern uint8_t rtnl_link_ipgre_get_tos(struct rtnl_link *link); + +extern int rtnl_link_ipgre_set_pmtudisc(struct rtnl_link *link, uint8_t pmtudisc); +extern uint8_t rtnl_link_ipgre_get_pmtudisc(struct rtnl_link *link); + +----- + +.Example: Add a ipgre tunnel device +[source,c] +----- +struct rtnl_link *link +struct in_addr addr + +/* allocate new link object of type vxlan */ +if(!(link = rtnl_link_ipgre_alloc())) + /* error */ + +/* set ipgre tunnel name */ +if ((err = rtnl_link_set_name(link, "ipgre-tun")) < 0) + /* error */ + +/* set link index */ +if ((err = rtnl_link_ipgre_set_link(link, if_index)) < 0) + /* error */ + +/* set local address */ +inet_pton(AF_INET, "192.168.254.12", &addr.s_addr); +if ((err = rtnl_link_ipgre_set_local(link, addr.s_addr)) < 0) + /* error */ + +/* set remote address */ +inet_pton(AF_INET, "192.168.254.13", &addr.s_addr +if ((err = rtnl_link_ipgre_set_remote(link, addr.s_addr)) < 0) + /* error */ + +/* set tunnel ttl */ +if ((err = rtnl_link_ipgre_set_ttl(link, 64)) < 0) + /* error */ + +if((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) + /* error */ + +rtnl_link_put(link); +----- + + == Neighbouring == Routing |