RENEW was the only flow label action without selftests coverage. Based on the previously implemented EXCL share test, that demonstrates that a new flow label with same label can be created after the linger period, use renew to show that the flow label can last longer and block a new flow label creation after the previous linger time.
Signed-off-by: Marcelo Mendes Spessoto Junior <[email protected]> --- .../selftests/net/ipv6_flowlabel_mgr.c | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/tools/testing/selftests/net/ipv6_flowlabel_mgr.c b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c index af95b48acea9..cfa7e6270994 100644 --- a/tools/testing/selftests/net/ipv6_flowlabel_mgr.c +++ b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c @@ -71,6 +71,17 @@ static int flowlabel_put(int fd, uint32_t label) return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req)); } +static int flowlabel_renew(int fd, uint32_t label, uint16_t linger) +{ + struct in6_flowlabel_req req = { + .flr_action = IPV6_FL_A_RENEW, + .flr_label = htonl(label), + .flr_linger = linger, + }; + + return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req)); +} + static void run_tests(int fd) { int wstatus; @@ -160,6 +171,18 @@ static void run_tests(int fd) error(1, errno, "wait"); if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0) error(1, errno, "wait: unexpected child result"); + + if (cfg_long_running) { + explain("create a new label with FL_MIN_LINGER linger time"); + expect_pass(flowlabel_get(fd, 5, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE)); + explain("renew the label to increase its linger time and put it"); + expect_pass(flowlabel_renew(fd, 5, 2 * (FL_MIN_LINGER * 2 + 1))); + expect_pass(flowlabel_put(fd, 5)); + sleep(FL_MIN_LINGER * 2 + 1); + explain("The label cannot be created because the new linger time is not over yet"); + expect_fail(flowlabel_get(fd, 5, IPV6_FL_S_ANY, IPV6_FL_F_CREATE)); + } + } static void parse_opts(int argc, char **argv) -- 2.55.0
