#include <netlink/netlink.h>
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#include <netlink/route/link.h>
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#include <netlink/route/link/vlan.h>
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int main(int argc, char *argv[])
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{
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struct rtnl_link *link;
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struct nl_cache *link_cache;
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struct nl_sock *sk;
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int err, master_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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if ((err = rtnl_link_alloc_cache(sk, AF_UNSPEC, &link_cache)) < 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 (!(master_index = rtnl_link_name2i(link_cache, "eth0"))) {
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fprintf(stderr, "Unable to lookup eth0");
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return -1;
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}
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link = rtnl_link_vlan_alloc();
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rtnl_link_set_link(link, master_index);
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rtnl_link_vlan_set_id(link, 10);
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if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 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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