cregit-Linux how code gets into the kernel

Release 4.11 net/ipv6/netfilter/ip6table_raw.c

/*
 * IPv6 raw table, a port of the IPv4 raw table to IPv6
 *
 * Copyright (C) 2003 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
 */
#include <linux/module.h>
#include <linux/netfilter_ipv6/ip6_tables.h>
#include <linux/slab.h>


#define RAW_VALID_HOOKS ((1 << NF_INET_PRE_ROUTING) | (1 << NF_INET_LOCAL_OUT))

static int __net_init ip6table_raw_table_init(struct net *net);


static const struct xt_table packet_raw = {
	.name = "raw",
	.valid_hooks = RAW_VALID_HOOKS,
	.me = THIS_MODULE,
	.af = NFPROTO_IPV6,
	.priority = NF_IP6_PRI_RAW,
	.table_init = ip6table_raw_table_init,
};

/* The work comes in here from netfilter.c. */

static unsigned int ip6table_raw_hook(void *priv, struct sk_buff *skb, const struct nf_hook_state *state) { return ip6t_do_table(skb, state, state->net->ipv6.ip6table_raw); }

Contributors

PersonTokensPropCommitsCommitProp
Harald Welte1744.74%110.00%
Alexey Dobriyan1026.32%220.00%
Eric W. Biedermann410.53%220.00%
David S. Miller37.89%110.00%
Jan Engelhardt25.26%220.00%
Herbert Xu12.63%110.00%
Patrick McHardy12.63%110.00%
Total38100.00%10100.00%

static struct nf_hook_ops *rawtable_ops __read_mostly;
static int __net_init ip6table_raw_table_init(struct net *net) { struct ip6t_replace *repl; int ret; if (net->ipv6.ip6table_raw) return 0; repl = ip6t_alloc_initial_table(&packet_raw); if (repl == NULL) return -ENOMEM; ret = ip6t_register_table(net, &packet_raw, repl, rawtable_ops, &net->ipv6.ip6table_raw); kfree(repl); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Jan Engelhardt2835.90%114.29%
Florian Westphal2633.33%228.57%
Harald Welte1316.67%228.57%
Alexey Dobriyan1114.10%228.57%
Total78100.00%7100.00%


static void __net_exit ip6table_raw_net_exit(struct net *net) { if (!net->ipv6.ip6table_raw) return; ip6t_unregister_table(net, net->ipv6.ip6table_raw, rawtable_ops); net->ipv6.ip6table_raw = NULL; }

Contributors

PersonTokensPropCommitsCommitProp
Alexey Dobriyan2353.49%250.00%
Florian Westphal2046.51%250.00%
Total43100.00%4100.00%

static struct pernet_operations ip6table_raw_net_ops = { .exit = ip6table_raw_net_exit, };
static int __init ip6table_raw_init(void) { int ret; /* Register hooks */ rawtable_ops = xt_hook_ops_alloc(&packet_raw, ip6table_raw_hook); if (IS_ERR(rawtable_ops)) return PTR_ERR(rawtable_ops); ret = register_pernet_subsys(&ip6table_raw_net_ops); if (ret < 0) { kfree(rawtable_ops); return ret; } ret = ip6table_raw_table_init(&init_net); if (ret) { unregister_pernet_subsys(&ip6table_raw_net_ops); kfree(rawtable_ops); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Florian Westphal4146.59%120.00%
Harald Welte1820.45%120.00%
Jan Engelhardt1415.91%120.00%
Alexey Dobriyan1415.91%120.00%
Patrick McHardy11.14%120.00%
Total88100.00%5100.00%


static void __exit ip6table_raw_fini(void) { unregister_pernet_subsys(&ip6table_raw_net_ops); kfree(rawtable_ops); }

Contributors

PersonTokensPropCommitsCommitProp
Harald Welte1470.00%125.00%
Florian Westphal420.00%125.00%
Andrew Morton15.00%125.00%
Jan Engelhardt15.00%125.00%
Total20100.00%4100.00%

module_init(ip6table_raw_init); module_exit(ip6table_raw_fini); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
Harald Welte11531.51%311.54%
Florian Westphal10729.32%27.69%
Alexey Dobriyan7119.45%415.38%
Jan Engelhardt5314.52%623.08%
Eric W. Biedermann41.10%27.69%
Patrick McHardy41.10%415.38%
Tejun Heo30.82%13.85%
Andrew Morton30.82%13.85%
David S. Miller30.82%13.85%
Jozsef Kadlecsik10.27%13.85%
Herbert Xu10.27%13.85%
Total365100.00%26100.00%
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