cregit-Linux how code gets into the kernel

Release 4.14 net/netfilter/xt_NFLOG.c

Directory: net/netfilter
/*
 * Copyright (c) 2006 Patrick McHardy <kaber@trash.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/skbuff.h>

#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_NFLOG.h>
#include <net/netfilter/nf_log.h>
#include <net/netfilter/nfnetlink_log.h>

MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
MODULE_DESCRIPTION("Xtables: packet logging to netlink using NFLOG");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_NFLOG");
MODULE_ALIAS("ip6t_NFLOG");


static unsigned int nflog_tg(struct sk_buff *skb, const struct xt_action_param *par) { const struct xt_nflog_info *info = par->targinfo; struct net *net = xt_net(par); struct nf_loginfo li; li.type = NF_LOG_TYPE_ULOG; li.u.ulog.copy_len = info->len; li.u.ulog.group = info->group; li.u.ulog.qthreshold = info->threshold; li.u.ulog.flags = 0; if (info->flags & XT_NFLOG_F_COPY_LEN) li.u.ulog.flags |= NF_LOG_F_COPY_LEN; nfulnl_log_packet(net, xt_family(par), xt_hooknum(par), skb, xt_in(par), xt_out(par), &li, info->prefix); return XT_CONTINUE; }

Contributors

PersonTokensPropCommitsCommitProp
Patrick McHardy8255.03%110.00%
Pablo Neira Ayuso1912.75%110.00%
Vishwanath Pai1812.08%110.00%
Liping Zhang106.71%110.00%
Jan Engelhardt96.04%330.00%
Hans Schillstrom85.37%110.00%
Herbert Xu21.34%110.00%
Eric Leblond10.67%110.00%
Total149100.00%10100.00%


static int nflog_tg_check(const struct xt_tgchk_param *par) { const struct xt_nflog_info *info = par->targinfo; if (info->flags & ~XT_NFLOG_MASK) return -EINVAL; if (info->prefix[sizeof(info->prefix) - 1] != '\0') return -EINVAL; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Patrick McHardy4778.33%116.67%
Jan Engelhardt1321.67%583.33%
Total60100.00%6100.00%

static struct xt_target nflog_tg_reg __read_mostly = { .name = "NFLOG", .revision = 0, .family = NFPROTO_UNSPEC, .checkentry = nflog_tg_check, .target = nflog_tg, .targetsize = sizeof(struct xt_nflog_info), .me = THIS_MODULE, };
static int __init nflog_tg_init(void) { return xt_register_target(&nflog_tg_reg); }

Contributors

PersonTokensPropCommitsCommitProp
Patrick McHardy1275.00%133.33%
Jan Engelhardt425.00%266.67%
Total16100.00%3100.00%


static void __exit nflog_tg_exit(void) { xt_unregister_target(&nflog_tg_reg); }

Contributors

PersonTokensPropCommitsCommitProp
Patrick McHardy1173.33%133.33%
Jan Engelhardt426.67%266.67%
Total15100.00%3100.00%

module_init(nflog_tg_init); module_exit(nflog_tg_exit);

Overall Contributors

PersonTokensPropCommitsCommitProp
Patrick McHardy24470.93%316.67%
Jan Engelhardt3911.34%950.00%
Pablo Neira Ayuso195.52%15.56%
Vishwanath Pai185.23%15.56%
Liping Zhang102.91%15.56%
Hans Schillstrom82.33%15.56%
Eric Leblond41.16%15.56%
Herbert Xu20.58%15.56%
Total344100.00%18100.00%
Directory: net/netfilter
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