/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2014 Tobias Klauser.
 * Subject to the GPL, version 2.
 */

#include <libnl3/netlink/msg.h>

#include "pkt_buff.h"
#include "proto.h"

static void nlmsg(struct pkt_buff *pkt)
{
	struct nlmsghdr *hdr = (struct nlmsghdr *) pkt_pull(pkt, sizeof(*hdr));
	char type[32];
	char flags[128];

	if (hdr == NULL)
		return;

	tprintf(" [ NLMSG ");
	tprintf("Len %u, ", hdr->nlmsg_len);
	tprintf("Type 0x%.4x (%s%s%s), ", hdr->nlmsg_type,
		colorize_start(bold),
		nl_nlmsgtype2str(hdr->nlmsg_type, type, sizeof(type)),
		colorize_end());
	tprintf("Flags 0x%.4x (%s%s%s), ", hdr->nlmsg_flags,
		colorize_start(bold),
		nl_nlmsg_flags2str(hdr->nlmsg_flags, flags, sizeof(flags)),
		colorize_end());
	tprintf("Seq-Nr %u, ", hdr->nlmsg_seq);
	tprintf("PID %u", hdr->nlmsg_pid);
	tprintf(" ]\n");
}

static void nlmsg_less(struct pkt_buff *pkt)
{
	struct nlmsghdr *hdr = (struct nlmsghdr *) pkt_pull(pkt, sizeof(*hdr));
	char type[32];

	if (hdr == NULL)
		return;

	tprintf(" NLMSG %u (%s%s%s)", hdr->nlmsg_type, colorize_start(bold),
		nl_nlmsgtype2str(hdr->nlmsg_type, type, sizeof(type)),
		colorize_end());
}

struct protocol nlmsg_ops = {
	.print_full = nlmsg,
	.print_less = nlmsg_less,
};