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https://gitee.com/openharmony/third_party_libnl
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d715b8a5f6
This patch introduces sit 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>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <netlink/route/link/sit.h>
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#include <netlink-private/netlink.h>
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int main(int argc, char *argv[])
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{
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struct nl_cache *link_cache;
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struct rtnl_link *link;
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struct in_addr addr;
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struct nl_sock *sk;
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int err, if_index;
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sk = nl_socket_alloc();
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if ((err = nl_connect(sk, NETLINK_ROUTE)) < 0) {
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nl_perror(err, "Unable to connect socket");
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return err;
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}
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err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache);
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if ( err < 0) {
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nl_perror(err, "Unable to allocate cache");
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return err;
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}
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if_index = rtnl_link_name2i(link_cache, "eno16777736");
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if (!if_index) {
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fprintf(stderr, "Unable to lookup eno16777736");
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return -1;
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}
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link = rtnl_link_sit_alloc();
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if(!link) {
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nl_perror(err, "Unable to allocate link");
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return -1;
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}
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rtnl_link_set_name(link, "sit-tun");
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rtnl_link_sit_set_link(link, if_index);
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inet_pton(AF_INET, "192.168.254.12", &addr.s_addr);
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rtnl_link_sit_set_local(link, addr.s_addr);
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inet_pton(AF_INET, "192.168.254.13", &addr.s_addr);
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rtnl_link_sit_set_remote(link, addr.s_addr);
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rtnl_link_sit_set_ttl(link, 64);
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err = rtnl_link_add(sk, link, NLM_F_CREATE);
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if (err < 0) {
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nl_perror(err, "Unable to add link");
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return err;
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}
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rtnl_link_put(link);
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nl_close(sk);
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return 0;
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}
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