From bf4d126b811c6ad00068fd04af652c982dc289c1 Mon Sep 17 00:00:00 2001 From: Ole Troan Date: Fri, 28 Sep 2018 14:27:24 +0200 Subject: [PATCH] IP ttl check in ip4-input missing for single packet path. Change-Id: Idc17b2f8794d37cd3242a97395ab56bd633ca575 Signed-off-by: Ole Troan --- src/vnet/ip/ip4_input.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/vnet/ip/ip4_input.h b/src/vnet/ip/ip4_input.h index 880896e6430..5df2154b2c3 100644 --- a/src/vnet/ip/ip4_input.h +++ b/src/vnet/ip/ip4_input.h @@ -290,6 +290,9 @@ ip4_input_check_x1 (vlib_main_t * vm, check_ver_opt_csum (ip0, &error0, verify_checksum); + if (PREDICT_FALSE (ip0->ttl < 1)) + error0 = IP4_ERROR_TIME_EXPIRED; + /* Drop fragmentation offset 1 packets. */ error0 = ip4_get_fragment_offset (ip0) == 1 ? IP4_ERROR_FRAGMENT_OFFSET_ONE : error0; -- 2.16.6