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56 lines
1.2 KiB
56 lines
1.2 KiB
#include <netlink/route/link/ipgre.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_ipgre_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, "ipgre-tun"); |
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rtnl_link_ipgre_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_ipgre_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_ipgre_set_remote(link, addr.s_addr); |
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rtnl_link_ipgre_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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