Release 4.8 net/netfilter/nf_nat_proto_sctp.c
/*
* Copyright (c) 2008 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/types.h>
#include <linux/init.h>
#include <linux/sctp.h>
#include <linux/module.h>
#include <net/sctp/checksum.h>
#include <net/netfilter/nf_nat_l4proto.h>
static u_int16_t nf_sctp_port_rover;
static void
sctp_unique_tuple(const struct nf_nat_l3proto *l3proto,
struct nf_conntrack_tuple *tuple,
const struct nf_nat_range *range,
enum nf_nat_manip_type maniptype,
const struct nf_conn *ct)
{
nf_nat_l4proto_unique_tuple(l3proto, tuple, range, maniptype, ct,
&nf_sctp_port_rover);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 47 | 95.92% | 2 | 66.67% |
| changli gao | changli gao | 2 | 4.08% | 1 | 33.33% |
| Total | 49 | 100.00% | 3 | 100.00% |
static bool
sctp_manip_pkt(struct sk_buff *skb,
const struct nf_nat_l3proto *l3proto,
unsigned int iphdroff, unsigned int hdroff,
const struct nf_conntrack_tuple *tuple,
enum nf_nat_manip_type maniptype)
{
sctp_sctphdr_t *hdr;
if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
return false;
hdr = (struct sctphdr *)(skb->data + hdroff);
if (maniptype == NF_NAT_MANIP_SRC) {
/* Get rid of src port */
hdr->source = tuple->src.u.sctp.port;
} else {
/* Get rid of dst port */
hdr->dest = tuple->dst.u.sctp.port;
}
hdr->checksum = sctp_compute_cksum(skb, hdroff);
return true;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 119 | 92.97% | 3 | 50.00% |
| joe stringer | joe stringer | 4 | 3.12% | 1 | 16.67% |
| jan engelhardt | jan engelhardt | 3 | 2.34% | 1 | 16.67% |
| simon horman | simon horman | 2 | 1.56% | 1 | 16.67% |
| Total | 128 | 100.00% | 6 | 100.00% |
static const struct nf_nat_l4proto nf_nat_l4proto_sctp = {
.l4proto = IPPROTO_SCTP,
.manip_pkt = sctp_manip_pkt,
.in_range = nf_nat_l4proto_in_range,
.unique_tuple = sctp_unique_tuple,
#if IS_ENABLED(CONFIG_NF_CT_NETLINK)
.nlattr_to_range = nf_nat_l4proto_nlattr_to_range,
#endif
};
static int __init nf_nat_proto_sctp_init(void)
{
int err;
err = nf_nat_l4proto_register(NFPROTO_IPV4, &nf_nat_l4proto_sctp);
if (err < 0)
goto err1;
err = nf_nat_l4proto_register(NFPROTO_IPV6, &nf_nat_l4proto_sctp);
if (err < 0)
goto err2;
return 0;
err2:
nf_nat_l4proto_unregister(NFPROTO_IPV4, &nf_nat_l4proto_sctp);
err1:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 68 | 100.00% | 2 | 100.00% |
| Total | 68 | 100.00% | 2 | 100.00% |
static void __exit nf_nat_proto_sctp_exit(void)
{
nf_nat_l4proto_unregister(NFPROTO_IPV6, &nf_nat_l4proto_sctp);
nf_nat_l4proto_unregister(NFPROTO_IPV4, &nf_nat_l4proto_sctp);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 25 | 100.00% | 2 | 100.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
module_init(nf_nat_proto_sctp_init);
module_exit(nf_nat_proto_sctp_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SCTP NAT protocol helper");
MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| patrick mchardy | patrick mchardy | 345 | 95.83% | 3 | 33.33% |
| joe stringer | joe stringer | 4 | 1.11% | 1 | 11.11% |
| paul gortmaker | paul gortmaker | 3 | 0.83% | 1 | 11.11% |
| jan engelhardt | jan engelhardt | 3 | 0.83% | 1 | 11.11% |
| simon horman | simon horman | 2 | 0.56% | 1 | 11.11% |
| changli gao | changli gao | 2 | 0.56% | 1 | 11.11% |
| duan jiong | duan jiong | 1 | 0.28% | 1 | 11.11% |
| Total | 360 | 100.00% | 9 | 100.00% |
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