git: fa50691ecf87 - main - libsysdecode: decode PF Generic Netlink commands

The branch main has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=fa50691ecf87c2d0ec35480222557173c11a5baa

commit fa50691ecf87c2d0ec35480222557173c11a5baa
Author:     Ishan Agrawal <iagrawal9990@gmail.com>
AuthorDate: 2026-06-29 06:21:59 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2026-07-05 14:04:06 +0000

    libsysdecode: decode PF Generic Netlink commands
    
    Decode the Generic Netlink command header for messages
    belonging to the PF Generic Netlink family. Display the
    command name using the PF Generic Netlink command decoder.
    
    Signed-off-by:  Ishan Agrawal <iagrawal9990@gmail.com>
    Reviewed by:    kp
    Sponsored-by:   Google LLC (GSoC 2026)
---
 lib/libsysdecode/netlink.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/lib/libsysdecode/netlink.c b/lib/libsysdecode/netlink.c
index a9c226e6065d..ce8ac0485009 100644
--- a/lib/libsysdecode/netlink.c
+++ b/lib/libsysdecode/netlink.c
@@ -29,6 +29,18 @@
 static struct name_table *family_table = NULL;
 static size_t num_family = 0;
 
+static void
+sysdecode_netlink_pf(FILE *fp, const struct genlmsghdr *genl)
+{
+	uint8_t cmd = genl->cmd;
+	const char *cmd_name = sysdecode_pfnl_cmd(cmd);
+
+	if (cmd_name != NULL)
+		fprintf(fp, "cmd=%s", cmd_name);
+	else
+		fprintf(fp, "cmd=%u", cmd);
+}
+
 bool
 sysdecode_netlink(FILE *fp, const void *buf, size_t len, int protocol)
 {
@@ -160,8 +172,21 @@ sysdecode_netlink(FILE *fp, const void *buf, size_t len, int protocol)
 		}
 
 		const char *family = lookup_value(family_table, nl->nlmsg_type);
-		if (family != NULL && strcmp(family, "pfctl") == 0)
-			fprintf(fp, ",pf={}");
+
+		if (family != NULL && protocol == NETLINK_GENERIC) {
+			fprintf(fp, ",%s={", family);
+
+			if (strcmp(family, "pfctl") == 0) {
+				const struct genlmsghdr *genl =
+				    (const struct genlmsghdr *)(const void *)
+				    ((const char *)nl +
+				    sizeof(struct nlmsghdr));
+
+				sysdecode_netlink_pf(fp, genl);
+			}
+
+			fprintf(fp, "}");
+		}
 
 		/* Handle Alignment (Netlink messages are 4-byte aligned). */
 		size_t aligned_len = NLMSG_ALIGN(nl->nlmsg_len);