From f1f13b95aa50a6d52ced31fd6bebfbbe757e4f69 Mon Sep 17 00:00:00 2001
From: Vincent Li <vincent.mc.li@gmail.com>
Date: Thu, 19 Jun 2025 19:22:50 -0700
Subject: [PATCH] dnsdist: change the xsk v4/v6 destination map name

We use xdp-loader to load dnsdist_xdp.bpf.o for dnsdist running
AF_XDP:

xdp-loader load green0 -P 90 -p /sys/fs/bpf/dnsdist -n xdp_dns_filter /usr/lib/bpf/dnsdist_xdp.bpf.o

so the xsk v4/v6 destination map would be:

/sys/fs/bpf/dnsdist/xskDestinationsV4
/sys/fs/bpf/dnsdist/xskDestinationsV6

but dnsdist-xsk.cc has:

static std::string getDestinationMap(bool isV6)
    {
      return !isV6 ? "/sys/fs/bpf/dnsdist/xsk-destinations-v4" : "/sys/fs/bpf/dnsdist/xsk-destinations-v6";
    }

we can't use xsk-destinations-v4/v6 in dnsdist_xdp.bpf.o because bpf map
could not use '-' in map definition, '-' would result in compiling
error.

so we patch dnsdist-xsk.cc to use xskDestinationsV4/V6 that matches the
map name in dnsdist_xdp.bpf.o

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
---
 lfs/dnsdist | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lfs/dnsdist b/lfs/dnsdist
index 49c2d4143..3470bd0fd 100644
--- a/lfs/dnsdist
+++ b/lfs/dnsdist
@@ -50,7 +50,7 @@ objects = $(DL_FILE)
 
 $(DL_FILE) = $(DL_FROM)/$(DL_FILE)
 
-$(DL_FILE)_BLAKE2 = ea66ca17ef66ecc64fd3a7379b22c2b0448c2a41f325e574a4edb20dfe408315be84a407b78f30a441479fbbcba31a28da2e310c275877739918ad3f9870acd1
+$(DL_FILE)_BLAKE2 = 4490a6faf11b6b7e48fc821be37d0cee1ad93455ec09dadc61e236704bb743d8e5189d085352c775d19933934230e1c5b68ed233b7de7c5cb196f7da4dc16719
 
 install : $(TARGET)