From 3940de36728b768574a3e998389bb90d55f690d1 Mon Sep 17 00:00:00 2001 From: Dave Barach Date: Tue, 23 Jul 2019 16:28:36 -0400 Subject: api: binary api cleanup Multiple API message handlers call vnet_get_sup_hw_interface(...) without checking the inbound sw_if_index. This can cause a pool_elt_at_index ASSERT in a debug image, and major disorder in a production image. Given that a number of places are coded as follows, add an "api_visible_or_null" variant of vnet_get_sup_hw_interface, which returns NULL given an invalid sw_if_index, or a hidden sw interface: - hw = vnet_get_sup_hw_interface (vnm, sw_if_index); + hw = vnet_get_sup_hw_interface_api_visible_or_null (vnm, sw_if_index); if (hw == NULL || memif_device_class.index != hw->dev_class_index) return clib_error_return (0, "not a memif interface"); Rename two existing xxx_safe functions -> xxx_or_null to make it obvious what they return. Type: fix Change-Id: I29996e8d0768fd9e0c5495bd91ff8bedcf2c5697 Signed-off-by: Dave Barach --- src/vnet/bfd/bfd_cli.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/vnet/bfd/bfd_cli.c') diff --git a/src/vnet/bfd/bfd_cli.c b/src/vnet/bfd/bfd_cli.c index cab20a65b0b..4b5f75eb01b 100644 --- a/src/vnet/bfd/bfd_cli.c +++ b/src/vnet/bfd/bfd_cli.c @@ -170,7 +170,7 @@ show_bfd (vlib_main_t * vm, unformat_input_t * input, if (is_set) { vnet_sw_interface_t *sw_if = - vnet_get_sw_interface_safe (&vnet_main, sw_if_index); + vnet_get_sw_interface_or_null (&vnet_main, sw_if_index); vnet_hw_interface_t *hw_if = vnet_get_hw_interface (&vnet_main, sw_if->hw_if_index); u8 *s = format (NULL, "UDP echo source is: %v\n", hw_if->name); -- cgit 1.2.3-korg