From 4abda9ea26403e24b2d91b83a1e4c81f5fb4b003 Mon Sep 17 00:00:00 2001 From: Vadim Yanitskiy Date: Thu, 21 Nov 2019 00:19:36 +0700 Subject: logging/vty: fix: actually ignore deprecated logging commands We shall not prevent programs from starting if their configuration files contain deprecated 'logging level ...' commands. Just print a warning and return CMD_SUCCESS instead of CMD_WARNING. While writing a unit test, another funny bug has been uncovered. Parsing of a deprecated command indeed triggers a deprecation warning, originated from libosmovty's log_deprecated_func(). This function simply calls vty_out(), but... Since the invocation of the vty_out() happens _before_ the VTY is initialized, the process is actually writing that warning to its own stdin! Most likely, because we use talloc_zero() to allocate a new instance of struct 'vty'. As a side effect, the evil warning magically appears in the output of 'make check', breaking the test statistics. Let's work around this bug for now by redirecting stdin to /dev/null. Change-Id: Ia934581410cd41594791d4e14ee74c16abe1009a Fixes: Ic9c1b566ec4a459f03e6319cf369691903cf9d00 --- tests/vty/ok_deprecated_logging.cfg | 3 +++ tests/vty/vty_test.c | 4 ++++ tests/vty/vty_test.ok | 2 ++ 3 files changed, 9 insertions(+) create mode 100644 tests/vty/ok_deprecated_logging.cfg (limited to 'tests/vty') diff --git a/tests/vty/ok_deprecated_logging.cfg b/tests/vty/ok_deprecated_logging.cfg new file mode 100644 index 00000000..2699719e --- /dev/null +++ b/tests/vty/ok_deprecated_logging.cfg @@ -0,0 +1,3 @@ +log stderr + logging filter all 1 + logging level depr debug diff --git a/tests/vty/vty_test.c b/tests/vty/vty_test.c index 0d68a6c0..1139638d 100644 --- a/tests/vty/vty_test.c +++ b/tests/vty/vty_test.c @@ -29,6 +29,7 @@ #include #include +#include #include #include #include @@ -442,6 +443,8 @@ void test_vty_add_cmds() install_element(CONFIG_NODE, &cfg_ret_warning_cmd); install_element(CONFIG_NODE, &cfg_ret_success_cmd); + logging_vty_add_deprecated_subsys(tall_log_ctx, "depr"); + install_element(CONFIG_NODE, &cfg_level1_cmd); install_node(&level1_node, NULL); install_element(LEVEL1_NODE, &cfg_level1_child_cmd); @@ -544,6 +547,7 @@ int main(int argc, char **argv) test_exit_by_indent("ok_indented_root.cfg", 0); test_exit_by_indent("ok_empty_parent.cfg", 0); test_exit_by_indent("fail_cmd_ret_warning.cfg", -EINVAL); + test_exit_by_indent("ok_deprecated_logging.cfg", 0); test_is_cmd_ambiguous(); diff --git a/tests/vty/vty_test.ok b/tests/vty/vty_test.ok index 0b5ac9c0..d2c96111 100644 --- a/tests/vty/vty_test.ok +++ b/tests/vty/vty_test.ok @@ -290,6 +290,8 @@ reading file fail_cmd_ret_warning.cfg, expecting rc=-22 Called: 'return-success' Called: 'return-warning' got rc=-22 +reading file ok_deprecated_logging.cfg, expecting rc=0 +got rc=0 Going to test is_cmd_ambiguous() Going to execute 'ambiguous_nr' Called: 'ambiguous_nr [<0-23>]' (argc=0) -- cgit v1.2.3