From 7678dac437149a8af7cbbc2c8b067c9096143320 Mon Sep 17 00:00:00 2001
From: Artem Hevorhian <artemhevorhian@gmail.com>
Date: Tue, 19 Nov 2024 22:19:15 +0000
Subject: [PATCH] ktrace: support AF_NETLINK in ktrstruct

Right now, sockaddr_nl parameters are not displayed in kdump output,
however they are present in the structure in ktrace.out file when
ktrace is run.

Reviewed by:		melifaro, markj, glebius
Differential Revision:	https://reviews.freebsd.org/D47411
---
 usr.bin/kdump/kdump.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/usr.bin/kdump/kdump.c b/usr.bin/kdump/kdump.c
index f104c20f3842..48f645c339b9 100644
--- a/usr.bin/kdump/kdump.c
+++ b/usr.bin/kdump/kdump.c
@@ -59,6 +59,7 @@
 #endif
 #include <arpa/inet.h>
 #include <netinet/in.h>
+#include <netlink/netlink.h>
 #include <ctype.h>
 #include <capsicum_helpers.h>
 #include <err.h>
@@ -1944,6 +1945,15 @@ ktrsockaddr(struct sockaddr *sa)
 		printf("%.*s", (int)sizeof(sa_un.sun_path), sa_un.sun_path);
 		break;
 	}
+	case AF_NETLINK: {
+		struct sockaddr_nl sa_nl;
+
+		memset(&sa_nl, 0, sizeof(sa_nl));
+		memcpy(&sa_nl, sa, sa->sa_len);
+		printf("netlink[pid=%u, groups=0x%x]",
+		    sa_nl.nl_pid, sa_nl.nl_groups);
+		break;
+	}
 	default:
 		printf("unknown address family");
 	}