projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
| 9fb9cbb1 YK |
2 | /* (C) 1999-2001 Paul `Rusty' Russell |
| 3 | * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> | |
| 9fb9cbb1 YK |
4 | */ |
| 5 | ||
| 6 | #include <linux/types.h> | |
| cd354f1a | 7 | #include <linux/jiffies.h> |
| 9fb9cbb1 YK |
8 | #include <linux/timer.h> |
| 9 | #include <linux/netfilter.h> | |
| 605dcad6 | 10 | #include <net/netfilter/nf_conntrack_l4proto.h> |
| c779e849 | 11 | #include <net/netfilter/nf_conntrack_timeout.h> |
| 9fb9cbb1 | 12 | |
| 2c9e8637 | 13 | static const unsigned int nf_ct_generic_timeout = 600*HZ; |
| 9fb9cbb1 | 14 | |
| a874752a | 15 | #ifdef CONFIG_NF_CONNTRACK_TIMEOUT |
| 50978462 PNA |
16 | |
| 17 | #include <linux/netfilter/nfnetlink.h> | |
| 18 | #include <linux/netfilter/nfnetlink_cttimeout.h> | |
| 19 | ||
| 8264deb8 G |
20 | static int generic_timeout_nlattr_to_obj(struct nlattr *tb[], |
| 21 | struct net *net, void *data) | |
| 50978462 | 22 | { |
| a95a7774 | 23 | struct nf_generic_net *gn = nf_generic_pernet(net); |
| c779e849 FW |
24 | unsigned int *timeout = data; |
| 25 | ||
| 26 | if (!timeout) | |
| 27 | timeout = &gn->timeout; | |
| 50978462 PNA |
28 | |
| 29 | if (tb[CTA_TIMEOUT_GENERIC_TIMEOUT]) | |
| 30 | *timeout = | |
| 31 | ntohl(nla_get_be32(tb[CTA_TIMEOUT_GENERIC_TIMEOUT])) * HZ; | |
| 32 | else { | |
| 33 | /* Set default generic timeout. */ | |
| 8264deb8 | 34 | *timeout = gn->timeout; |
| 50978462 PNA |
35 | } |
| 36 | ||
| 37 | return 0; | |
| 38 | } | |
| 39 | ||
| 40 | static int | |
| 41 | generic_timeout_obj_to_nlattr(struct sk_buff *skb, const void *data) | |
| 42 | { | |
| 43 | const unsigned int *timeout = data; | |
| 44 | ||
| f5776941 DM |
45 | if (nla_put_be32(skb, CTA_TIMEOUT_GENERIC_TIMEOUT, htonl(*timeout / HZ))) |
| 46 | goto nla_put_failure; | |
| 50978462 PNA |
47 | |
| 48 | return 0; | |
| 49 | ||
| 50 | nla_put_failure: | |
| 51 | return -ENOSPC; | |
| 52 | } | |
| 53 | ||
| 54 | static const struct nla_policy | |
| 55 | generic_timeout_nla_policy[CTA_TIMEOUT_GENERIC_MAX+1] = { | |
| 56 | [CTA_TIMEOUT_GENERIC_TIMEOUT] = { .type = NLA_U32 }, | |
| 57 | }; | |
| a874752a | 58 | #endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ |
| 50978462 | 59 | |
| 2a389de8 | 60 | void nf_conntrack_generic_init_net(struct net *net) |
| 22ac0377 | 61 | { |
| a95a7774 | 62 | struct nf_generic_net *gn = nf_generic_pernet(net); |
| 22ac0377 G |
63 | |
| 64 | gn->timeout = nf_ct_generic_timeout; | |
| 08911475 PNA |
65 | } |
| 66 | ||
| 9dae47ab | 67 | const struct nf_conntrack_l4proto nf_conntrack_l4proto_generic = |
| 9fb9cbb1 | 68 | { |
| fe2a7ce4 | 69 | .l4proto = 255, |
| a874752a | 70 | #ifdef CONFIG_NF_CONNTRACK_TIMEOUT |
| 50978462 PNA |
71 | .ctnl_timeout = { |
| 72 | .nlattr_to_obj = generic_timeout_nlattr_to_obj, | |
| 73 | .obj_to_nlattr = generic_timeout_obj_to_nlattr, | |
| 74 | .nlattr_max = CTA_TIMEOUT_GENERIC_MAX, | |
| 75 | .obj_size = sizeof(unsigned int), | |
| 76 | .nla_policy = generic_timeout_nla_policy, | |
| 77 | }, | |
| a874752a | 78 | #endif /* CONFIG_NF_CONNTRACK_TIMEOUT */ |
| 9fb9cbb1 | 79 | }; |