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80 lines
1.8 KiB
80 lines
1.8 KiB
#include <netlink/netlink.h> |
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#include <netlink/route/link.h> |
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#include <netlink/route/link/bridge.h> |
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#define TEST_BRIDGE_NAME "testbridge" |
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#define TEST_INTERFACE_NAME "testtap1" |
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int create_bridge(struct nl_sock *sk, struct nl_cache *link_cache, const char *name) { |
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struct rtnl_link *link; |
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int err; |
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link = rtnl_link_alloc(); |
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if ((err = rtnl_link_set_type(link, "bridge")) < 0) { |
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rtnl_link_put(link); |
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return err; |
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} |
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rtnl_link_set_name(link, name); |
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if ((err = rtnl_link_add(sk, link, NLM_F_CREATE)) < 0) { |
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return err; |
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} |
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rtnl_link_put(link); |
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return 0; |
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} |
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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; |
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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 ((err = create_bridge(sk, link_cache, TEST_BRIDGE_NAME)) < 0) { |
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nl_perror(err, "Unable to allocate testbridge"); |
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return err; |
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} |
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nl_cache_refill(sk, link_cache); |
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link = rtnl_link_get_by_name(link_cache, TEST_BRIDGE_NAME); |
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struct rtnl_link *ltap = rtnl_link_get_by_name(link_cache, TEST_INTERFACE_NAME); |
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if (!ltap) { |
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fprintf(stderr, "You should create a tap interface before lunch this test (# tunctl -t %s)\n", TEST_INTERFACE_NAME); |
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return -1; |
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} |
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if ((err = rtnl_link_enslave(sk, link, ltap)) < 0) { |
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nl_perror(err, "Unable to enslave interface to his bridge\n"); |
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return err; |
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} |
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if(rtnl_link_is_bridge(link) == 0) { |
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fprintf(stderr, "Link is not a bridge\n"); |
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return -2; |
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} |
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if(rtnl_link_get_master(ltap) <= 0) { |
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fprintf(stderr, "Interface is not attached to a bridge\n"); |
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return -3; |
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} |
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rtnl_link_put(ltap); |
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rtnl_link_put(link); |
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nl_cache_free(link_cache); |
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nl_socket_free(sk); |
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return 0; |
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}
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