From: Kyle Evans <kevans@FreeBSD.org>
Date: Sat, 12 Apr 2025 02:46:03 +0000 (-0500)
Subject: ipc: freebsd: use AF_LOCAL for the control socket
X-Git-Tag: v1.0.20250521~5
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=13d190bc72ce1753fbf0d1d6828677d1bc743807;p=thirdparty%2Fwireguard-tools.git

ipc: freebsd: use AF_LOCAL for the control socket

AF_INET assumes that IPv4 is built into the kernel, but it's completely
valid to build a kernel without it.  unix(4) sockets, on the other hand,
are not-optional in the kernel build.  Given that interface ioctls can
be invoked on any kind of socket, switch to the safer one to avoid
breaking on IPv6-only kernels.

Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---

diff --git a/src/ipc-freebsd.h b/src/ipc-freebsd.h
index fa74edd..446f13c 100644
--- a/src/ipc-freebsd.h
+++ b/src/ipc-freebsd.h
@@ -15,7 +15,7 @@ static int get_dgram_socket(void)
 {
 	static int sock = -1;
 	if (sock < 0)
-		sock = socket(AF_INET, SOCK_DGRAM, 0);
+		sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
 	return sock;
 }