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test: add bridge creation sample

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New test sample file, test-create-bridge.c
Create an bridge (testbrige) and attach an already setup interface (testtap1) to it.

Signed-off-by: Nicolas PLANEL <nicolas.planel@enovance.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
This commit is contained in:
Nicolas PLANEL 2013-10-10 21:43:12 +00:00 • committed by Thomas Graf
parent fdd1ba220d
commit cb034e12a4
2 changed files with 82 additions and 0 deletions
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2
tests/Makefile.am
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@ -21,6 +21,7 @@ UNIT_TESTS = check-all
check_PROGRAMS = \
test-create-bond \
test-create-vlan \
test-create-bridge \
test-delete-link \
test-socket-creation \
test-complex-HTB-with-hash-filters \
@ -40,6 +41,7 @@ endif
test_cache_mngr_SOURCES = test-cache-mngr.c
test_create_bond_SOURCES = test-create-bond.c
test_create_vlan_SOURCES = test-create-vlan.c
test_create_bridge_SOURCES = test-create-bridge.c
test_delete_link_SOURCES = test-delete-link.c
test_genl_SOURCES = test-genl.c
test_nf_cache_mngr_SOURCES = test-nf-cache-mngr.c

80
tests/test-create-bridge.c Normal file
View file

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