Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 1 | /* (C) 1999-2001 Paul `Rusty' Russell |
| 2 | * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 7 | */ |
| 8 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 9 | #include <linux/types.h> |
| 10 | #include <linux/netfilter.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 11 | #include <linux/slab.h> |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 12 | #include <linux/module.h> |
| 13 | #include <linux/skbuff.h> |
| 14 | #include <linux/proc_fs.h> |
| 15 | #include <linux/seq_file.h> |
| 16 | #include <linux/percpu.h> |
| 17 | #include <linux/netdevice.h> |
Eric Paris | 1ae4de0 | 2010-10-13 16:25:00 -0400 | [diff] [blame] | 18 | #include <linux/security.h> |
Eric W. Biederman | 457c4cb | 2007-09-12 12:01:34 +0200 | [diff] [blame] | 19 | #include <net/net_namespace.h> |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 20 | #ifdef CONFIG_SYSCTL |
| 21 | #include <linux/sysctl.h> |
| 22 | #endif |
| 23 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 24 | #include <net/netfilter/nf_conntrack.h> |
Martin Josefsson | f618012 | 2006-11-29 02:35:01 +0100 | [diff] [blame] | 25 | #include <net/netfilter/nf_conntrack_core.h> |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 26 | #include <net/netfilter/nf_conntrack_l3proto.h> |
Martin Josefsson | 605dcad | 2006-11-29 02:35:06 +0100 | [diff] [blame] | 27 | #include <net/netfilter/nf_conntrack_l4proto.h> |
Martin Josefsson | 77ab9cf | 2006-11-29 02:34:58 +0100 | [diff] [blame] | 28 | #include <net/netfilter/nf_conntrack_expect.h> |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 29 | #include <net/netfilter/nf_conntrack_helper.h> |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 30 | #include <net/netfilter/nf_conntrack_acct.h> |
Patrick McHardy | 5d0aa2c | 2010-02-15 18:13:33 +0100 | [diff] [blame] | 31 | #include <net/netfilter/nf_conntrack_zones.h> |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 32 | #include <net/netfilter/nf_conntrack_timestamp.h> |
Eric Dumazet | 0e60ebe | 2010-11-15 18:17:21 +0100 | [diff] [blame] | 33 | #include <linux/rculist_nulls.h> |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 34 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 35 | MODULE_LICENSE("GPL"); |
| 36 | |
Jan Engelhardt | 54b07dc | 2011-04-21 09:32:45 +0200 | [diff] [blame^] | 37 | #ifdef CONFIG_NF_CONNTRACK_PROCFS |
Martin Josefsson | 77ab9cf | 2006-11-29 02:34:58 +0100 | [diff] [blame] | 38 | int |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 39 | print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple, |
Jan Engelhardt | 3294858 | 2008-01-31 04:53:24 -0800 | [diff] [blame] | 40 | const struct nf_conntrack_l3proto *l3proto, |
| 41 | const struct nf_conntrack_l4proto *l4proto) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 42 | { |
Martin Josefsson | 605dcad | 2006-11-29 02:35:06 +0100 | [diff] [blame] | 43 | return l3proto->print_tuple(s, tuple) || l4proto->print_tuple(s, tuple); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 44 | } |
Patrick McHardy | e4bd8bc | 2006-11-29 02:35:22 +0100 | [diff] [blame] | 45 | EXPORT_SYMBOL_GPL(print_tuple); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 46 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 47 | struct ct_iter_state { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 48 | struct seq_net_private p; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 49 | unsigned int bucket; |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 50 | u_int64_t time_now; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 51 | }; |
| 52 | |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 53 | static struct hlist_nulls_node *ct_get_first(struct seq_file *seq) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 54 | { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 55 | struct net *net = seq_file_net(seq); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 56 | struct ct_iter_state *st = seq->private; |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 57 | struct hlist_nulls_node *n; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 58 | |
| 59 | for (st->bucket = 0; |
Patrick McHardy | d696c7b | 2010-02-08 11:18:07 -0800 | [diff] [blame] | 60 | st->bucket < net->ct.htable_size; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 61 | st->bucket++) { |
Eric Dumazet | 0e60ebe | 2010-11-15 18:17:21 +0100 | [diff] [blame] | 62 | n = rcu_dereference(hlist_nulls_first_rcu(&net->ct.hash[st->bucket])); |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 63 | if (!is_a_nulls(n)) |
Patrick McHardy | 76507f6 | 2008-01-31 04:38:38 -0800 | [diff] [blame] | 64 | return n; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 65 | } |
| 66 | return NULL; |
| 67 | } |
| 68 | |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 69 | static struct hlist_nulls_node *ct_get_next(struct seq_file *seq, |
| 70 | struct hlist_nulls_node *head) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 71 | { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 72 | struct net *net = seq_file_net(seq); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 73 | struct ct_iter_state *st = seq->private; |
| 74 | |
Eric Dumazet | 0e60ebe | 2010-11-15 18:17:21 +0100 | [diff] [blame] | 75 | head = rcu_dereference(hlist_nulls_next_rcu(head)); |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 76 | while (is_a_nulls(head)) { |
| 77 | if (likely(get_nulls_value(head) == st->bucket)) { |
Patrick McHardy | d696c7b | 2010-02-08 11:18:07 -0800 | [diff] [blame] | 78 | if (++st->bucket >= net->ct.htable_size) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 79 | return NULL; |
| 80 | } |
Eric Dumazet | 0e60ebe | 2010-11-15 18:17:21 +0100 | [diff] [blame] | 81 | head = rcu_dereference( |
| 82 | hlist_nulls_first_rcu( |
| 83 | &net->ct.hash[st->bucket])); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 84 | } |
| 85 | return head; |
| 86 | } |
| 87 | |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 88 | static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 89 | { |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 90 | struct hlist_nulls_node *head = ct_get_first(seq); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 91 | |
| 92 | if (head) |
| 93 | while (pos && (head = ct_get_next(seq, head))) |
| 94 | pos--; |
| 95 | return pos ? NULL : head; |
| 96 | } |
| 97 | |
| 98 | static void *ct_seq_start(struct seq_file *seq, loff_t *pos) |
Patrick McHardy | 76507f6 | 2008-01-31 04:38:38 -0800 | [diff] [blame] | 99 | __acquires(RCU) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 100 | { |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 101 | struct ct_iter_state *st = seq->private; |
| 102 | |
| 103 | st->time_now = ktime_to_ns(ktime_get_real()); |
Patrick McHardy | 76507f6 | 2008-01-31 04:38:38 -0800 | [diff] [blame] | 104 | rcu_read_lock(); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 105 | return ct_get_idx(seq, *pos); |
| 106 | } |
| 107 | |
| 108 | static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos) |
| 109 | { |
| 110 | (*pos)++; |
| 111 | return ct_get_next(s, v); |
| 112 | } |
| 113 | |
| 114 | static void ct_seq_stop(struct seq_file *s, void *v) |
Patrick McHardy | 76507f6 | 2008-01-31 04:38:38 -0800 | [diff] [blame] | 115 | __releases(RCU) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 116 | { |
Patrick McHardy | 76507f6 | 2008-01-31 04:38:38 -0800 | [diff] [blame] | 117 | rcu_read_unlock(); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 118 | } |
| 119 | |
Eric Paris | 1ae4de0 | 2010-10-13 16:25:00 -0400 | [diff] [blame] | 120 | #ifdef CONFIG_NF_CONNTRACK_SECMARK |
| 121 | static int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct) |
| 122 | { |
| 123 | int ret; |
| 124 | u32 len; |
| 125 | char *secctx; |
| 126 | |
| 127 | ret = security_secid_to_secctx(ct->secmark, &secctx, &len); |
| 128 | if (ret) |
Pablo Neira Ayuso | cba85b5 | 2011-01-06 11:25:00 -0800 | [diff] [blame] | 129 | return 0; |
Eric Paris | 1ae4de0 | 2010-10-13 16:25:00 -0400 | [diff] [blame] | 130 | |
| 131 | ret = seq_printf(s, "secctx=%s ", secctx); |
| 132 | |
| 133 | security_release_secctx(secctx, len); |
| 134 | return ret; |
| 135 | } |
| 136 | #else |
| 137 | static inline int ct_show_secctx(struct seq_file *s, const struct nf_conn *ct) |
| 138 | { |
| 139 | return 0; |
| 140 | } |
| 141 | #endif |
| 142 | |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 143 | #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 144 | static int ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct) |
| 145 | { |
| 146 | struct ct_iter_state *st = s->private; |
Patrick McHardy | f5c88f5 | 2011-01-19 19:10:49 +0100 | [diff] [blame] | 147 | struct nf_conn_tstamp *tstamp; |
| 148 | s64 delta_time; |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 149 | |
Patrick McHardy | f5c88f5 | 2011-01-19 19:10:49 +0100 | [diff] [blame] | 150 | tstamp = nf_conn_tstamp_find(ct); |
| 151 | if (tstamp) { |
| 152 | delta_time = st->time_now - tstamp->start; |
| 153 | if (delta_time > 0) |
| 154 | delta_time = div_s64(delta_time, NSEC_PER_SEC); |
| 155 | else |
| 156 | delta_time = 0; |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 157 | |
Patrick McHardy | f5c88f5 | 2011-01-19 19:10:49 +0100 | [diff] [blame] | 158 | return seq_printf(s, "delta-time=%llu ", |
| 159 | (unsigned long long)delta_time); |
| 160 | } |
| 161 | return 0; |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 162 | } |
| 163 | #else |
| 164 | static inline int |
| 165 | ct_show_delta_time(struct seq_file *s, const struct nf_conn *ct) |
| 166 | { |
| 167 | return 0; |
| 168 | } |
| 169 | #endif |
| 170 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 171 | /* return 0 on success, 1 in case of error */ |
| 172 | static int ct_seq_show(struct seq_file *s, void *v) |
| 173 | { |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 174 | struct nf_conntrack_tuple_hash *hash = v; |
| 175 | struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash); |
Jan Engelhardt | 3294858 | 2008-01-31 04:53:24 -0800 | [diff] [blame] | 176 | const struct nf_conntrack_l3proto *l3proto; |
| 177 | const struct nf_conntrack_l4proto *l4proto; |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 178 | int ret = 0; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 179 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 180 | NF_CT_ASSERT(ct); |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 181 | if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use))) |
| 182 | return 0; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 183 | |
| 184 | /* we only want to print DIR_ORIGINAL */ |
| 185 | if (NF_CT_DIRECTION(hash)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 186 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 187 | |
Patrick McHardy | 5e8fbe2 | 2008-04-14 11:15:52 +0200 | [diff] [blame] | 188 | l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct)); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 189 | NF_CT_ASSERT(l3proto); |
Patrick McHardy | 5e8fbe2 | 2008-04-14 11:15:52 +0200 | [diff] [blame] | 190 | l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct)); |
Martin Josefsson | 605dcad | 2006-11-29 02:35:06 +0100 | [diff] [blame] | 191 | NF_CT_ASSERT(l4proto); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 192 | |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 193 | ret = -ENOSPC; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 194 | if (seq_printf(s, "%-8s %u %-8s %u %ld ", |
Patrick McHardy | 5e8fbe2 | 2008-04-14 11:15:52 +0200 | [diff] [blame] | 195 | l3proto->name, nf_ct_l3num(ct), |
| 196 | l4proto->name, nf_ct_protonum(ct), |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 197 | timer_pending(&ct->timeout) |
| 198 | ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 199 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 200 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 201 | if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 202 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 203 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 204 | if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple, |
Martin Josefsson | 605dcad | 2006-11-29 02:35:06 +0100 | [diff] [blame] | 205 | l3proto, l4proto)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 206 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 207 | |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 208 | if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 209 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 210 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 211 | if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status))) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 212 | if (seq_printf(s, "[UNREPLIED] ")) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 213 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 214 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 215 | if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple, |
Martin Josefsson | 605dcad | 2006-11-29 02:35:06 +0100 | [diff] [blame] | 216 | l3proto, l4proto)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 217 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 218 | |
Krzysztof Piotr Oledzki | 5840157 | 2008-07-21 10:01:34 -0700 | [diff] [blame] | 219 | if (seq_print_acct(s, ct, IP_CT_DIR_REPLY)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 220 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 221 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 222 | if (test_bit(IPS_ASSURED_BIT, &ct->status)) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 223 | if (seq_printf(s, "[ASSURED] ")) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 224 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 225 | |
| 226 | #if defined(CONFIG_NF_CONNTRACK_MARK) |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 227 | if (seq_printf(s, "mark=%u ", ct->mark)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 228 | goto release; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 229 | #endif |
| 230 | |
Eric Paris | 1ae4de0 | 2010-10-13 16:25:00 -0400 | [diff] [blame] | 231 | if (ct_show_secctx(s, ct)) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 232 | goto release; |
James Morris | 7c9728c | 2006-06-09 00:31:46 -0700 | [diff] [blame] | 233 | |
Patrick McHardy | 5d0aa2c | 2010-02-15 18:13:33 +0100 | [diff] [blame] | 234 | #ifdef CONFIG_NF_CONNTRACK_ZONES |
| 235 | if (seq_printf(s, "zone=%u ", nf_ct_zone(ct))) |
| 236 | goto release; |
| 237 | #endif |
| 238 | |
Pablo Neira Ayuso | a992ca2 | 2011-01-19 16:00:07 +0100 | [diff] [blame] | 239 | if (ct_show_delta_time(s, ct)) |
| 240 | goto release; |
| 241 | |
Patrick McHardy | c88130b | 2008-01-31 04:42:11 -0800 | [diff] [blame] | 242 | if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use))) |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 243 | goto release; |
YOSHIFUJI Hideaki | a5d2926 | 2007-07-19 10:44:21 +0900 | [diff] [blame] | 244 | |
Eric Dumazet | ea781f1 | 2009-03-25 21:05:46 +0100 | [diff] [blame] | 245 | ret = 0; |
| 246 | release: |
| 247 | nf_ct_put(ct); |
David S. Miller | d88d7de | 2011-04-17 17:03:33 -0700 | [diff] [blame] | 248 | return ret; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 249 | } |
| 250 | |
Philippe De Muyter | 56b3d97 | 2007-07-10 23:07:31 -0700 | [diff] [blame] | 251 | static const struct seq_operations ct_seq_ops = { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 252 | .start = ct_seq_start, |
| 253 | .next = ct_seq_next, |
| 254 | .stop = ct_seq_stop, |
| 255 | .show = ct_seq_show |
| 256 | }; |
| 257 | |
| 258 | static int ct_open(struct inode *inode, struct file *file) |
| 259 | { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 260 | return seq_open_net(inode, file, &ct_seq_ops, |
Pavel Emelyanov | e2da591 | 2007-10-10 02:29:58 -0700 | [diff] [blame] | 261 | sizeof(struct ct_iter_state)); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 262 | } |
| 263 | |
Arjan van de Ven | da7071d | 2007-02-12 00:55:36 -0800 | [diff] [blame] | 264 | static const struct file_operations ct_file_ops = { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 265 | .owner = THIS_MODULE, |
| 266 | .open = ct_open, |
| 267 | .read = seq_read, |
| 268 | .llseek = seq_lseek, |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 269 | .release = seq_release_net, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 270 | }; |
| 271 | |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 272 | static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos) |
| 273 | { |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 274 | struct net *net = seq_file_net(seq); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 275 | int cpu; |
| 276 | |
| 277 | if (*pos == 0) |
| 278 | return SEQ_START_TOKEN; |
| 279 | |
Rusty Russell | 0f23174a | 2008-12-29 12:23:42 +0000 | [diff] [blame] | 280 | for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 281 | if (!cpu_possible(cpu)) |
| 282 | continue; |
| 283 | *pos = cpu + 1; |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 284 | return per_cpu_ptr(net->ct.stat, cpu); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | return NULL; |
| 288 | } |
| 289 | |
| 290 | static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos) |
| 291 | { |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 292 | struct net *net = seq_file_net(seq); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 293 | int cpu; |
| 294 | |
Rusty Russell | 0f23174a | 2008-12-29 12:23:42 +0000 | [diff] [blame] | 295 | for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 296 | if (!cpu_possible(cpu)) |
| 297 | continue; |
| 298 | *pos = cpu + 1; |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 299 | return per_cpu_ptr(net->ct.stat, cpu); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 300 | } |
| 301 | |
| 302 | return NULL; |
| 303 | } |
| 304 | |
| 305 | static void ct_cpu_seq_stop(struct seq_file *seq, void *v) |
| 306 | { |
| 307 | } |
| 308 | |
| 309 | static int ct_cpu_seq_show(struct seq_file *seq, void *v) |
| 310 | { |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 311 | struct net *net = seq_file_net(seq); |
| 312 | unsigned int nr_conntracks = atomic_read(&net->ct.count); |
Jan Engelhardt | 3294858 | 2008-01-31 04:53:24 -0800 | [diff] [blame] | 313 | const struct ip_conntrack_stat *st = v; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 314 | |
| 315 | if (v == SEQ_START_TOKEN) { |
Jesper Dangaard Brouer | af740b2 | 2010-04-23 12:34:56 +0200 | [diff] [blame] | 316 | seq_printf(seq, "entries searched found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error expect_new expect_create expect_delete search_restart\n"); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 317 | return 0; |
| 318 | } |
| 319 | |
| 320 | seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x " |
Jesper Dangaard Brouer | af740b2 | 2010-04-23 12:34:56 +0200 | [diff] [blame] | 321 | "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n", |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 322 | nr_conntracks, |
| 323 | st->searched, |
| 324 | st->found, |
| 325 | st->new, |
| 326 | st->invalid, |
| 327 | st->ignore, |
| 328 | st->delete, |
| 329 | st->delete_list, |
| 330 | st->insert, |
| 331 | st->insert_failed, |
| 332 | st->drop, |
| 333 | st->early_drop, |
| 334 | st->error, |
| 335 | |
| 336 | st->expect_new, |
| 337 | st->expect_create, |
Jesper Dangaard Brouer | af740b2 | 2010-04-23 12:34:56 +0200 | [diff] [blame] | 338 | st->expect_delete, |
| 339 | st->search_restart |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 340 | ); |
| 341 | return 0; |
| 342 | } |
| 343 | |
Philippe De Muyter | 56b3d97 | 2007-07-10 23:07:31 -0700 | [diff] [blame] | 344 | static const struct seq_operations ct_cpu_seq_ops = { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 345 | .start = ct_cpu_seq_start, |
| 346 | .next = ct_cpu_seq_next, |
| 347 | .stop = ct_cpu_seq_stop, |
| 348 | .show = ct_cpu_seq_show, |
| 349 | }; |
| 350 | |
| 351 | static int ct_cpu_seq_open(struct inode *inode, struct file *file) |
| 352 | { |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 353 | return seq_open_net(inode, file, &ct_cpu_seq_ops, |
| 354 | sizeof(struct seq_net_private)); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 355 | } |
| 356 | |
Arjan van de Ven | da7071d | 2007-02-12 00:55:36 -0800 | [diff] [blame] | 357 | static const struct file_operations ct_cpu_seq_fops = { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 358 | .owner = THIS_MODULE, |
| 359 | .open = ct_cpu_seq_open, |
| 360 | .read = seq_read, |
| 361 | .llseek = seq_lseek, |
Alexey Dobriyan | 8e9df80 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 362 | .release = seq_release_net, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 363 | }; |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 364 | |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 365 | static int nf_conntrack_standalone_init_proc(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 366 | { |
| 367 | struct proc_dir_entry *pde; |
| 368 | |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 369 | pde = proc_net_fops_create(net, "nf_conntrack", 0440, &ct_file_ops); |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 370 | if (!pde) |
| 371 | goto out_nf_conntrack; |
Denis V. Lunev | 52c0e11 | 2008-05-02 04:10:57 -0700 | [diff] [blame] | 372 | |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 373 | pde = proc_create("nf_conntrack", S_IRUGO, net->proc_net_stat, |
Denis V. Lunev | 52c0e11 | 2008-05-02 04:10:57 -0700 | [diff] [blame] | 374 | &ct_cpu_seq_fops); |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 375 | if (!pde) |
| 376 | goto out_stat_nf_conntrack; |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 377 | return 0; |
| 378 | |
| 379 | out_stat_nf_conntrack: |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 380 | proc_net_remove(net, "nf_conntrack"); |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 381 | out_nf_conntrack: |
| 382 | return -ENOMEM; |
| 383 | } |
| 384 | |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 385 | static void nf_conntrack_standalone_fini_proc(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 386 | { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 387 | remove_proc_entry("nf_conntrack", net->proc_net_stat); |
| 388 | proc_net_remove(net, "nf_conntrack"); |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 389 | } |
| 390 | #else |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 391 | static int nf_conntrack_standalone_init_proc(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 392 | { |
| 393 | return 0; |
| 394 | } |
| 395 | |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 396 | static void nf_conntrack_standalone_fini_proc(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 397 | { |
| 398 | } |
Jan Engelhardt | 54b07dc | 2011-04-21 09:32:45 +0200 | [diff] [blame^] | 399 | #endif /* CONFIG_NF_CONNTRACK_PROCFS */ |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 400 | |
| 401 | /* Sysctl support */ |
| 402 | |
| 403 | #ifdef CONFIG_SYSCTL |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 404 | /* Log invalid packets of a given protocol */ |
| 405 | static int log_invalid_proto_min = 0; |
| 406 | static int log_invalid_proto_max = 255; |
| 407 | |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 408 | static struct ctl_table_header *nf_ct_netfilter_header; |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 409 | |
| 410 | static ctl_table nf_ct_sysctl_table[] = { |
| 411 | { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 412 | .procname = "nf_conntrack_max", |
| 413 | .data = &nf_conntrack_max, |
| 414 | .maxlen = sizeof(int), |
| 415 | .mode = 0644, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 416 | .proc_handler = proc_dointvec, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 417 | }, |
| 418 | { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 419 | .procname = "nf_conntrack_count", |
Alexey Dobriyan | 49ac871 | 2008-10-08 11:35:03 +0200 | [diff] [blame] | 420 | .data = &init_net.ct.count, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 421 | .maxlen = sizeof(int), |
| 422 | .mode = 0444, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 423 | .proc_handler = proc_dointvec, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 424 | }, |
| 425 | { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 426 | .procname = "nf_conntrack_buckets", |
Patrick McHardy | d696c7b | 2010-02-08 11:18:07 -0800 | [diff] [blame] | 427 | .data = &init_net.ct.htable_size, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 428 | .maxlen = sizeof(unsigned int), |
| 429 | .mode = 0444, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 430 | .proc_handler = proc_dointvec, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 431 | }, |
| 432 | { |
Patrick McHardy | 39a27a3 | 2006-05-29 18:23:54 -0700 | [diff] [blame] | 433 | .procname = "nf_conntrack_checksum", |
Alexey Dobriyan | c04d055 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 434 | .data = &init_net.ct.sysctl_checksum, |
Patrick McHardy | 39a27a3 | 2006-05-29 18:23:54 -0700 | [diff] [blame] | 435 | .maxlen = sizeof(unsigned int), |
| 436 | .mode = 0644, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 437 | .proc_handler = proc_dointvec, |
Patrick McHardy | 39a27a3 | 2006-05-29 18:23:54 -0700 | [diff] [blame] | 438 | }, |
| 439 | { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 440 | .procname = "nf_conntrack_log_invalid", |
Alexey Dobriyan | c2a2c7e | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 441 | .data = &init_net.ct.sysctl_log_invalid, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 442 | .maxlen = sizeof(unsigned int), |
| 443 | .mode = 0644, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 444 | .proc_handler = proc_dointvec_minmax, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 445 | .extra1 = &log_invalid_proto_min, |
| 446 | .extra2 = &log_invalid_proto_max, |
| 447 | }, |
Patrick McHardy | f264a7d | 2007-07-07 22:36:24 -0700 | [diff] [blame] | 448 | { |
Patrick McHardy | f264a7d | 2007-07-07 22:36:24 -0700 | [diff] [blame] | 449 | .procname = "nf_conntrack_expect_max", |
| 450 | .data = &nf_ct_expect_max, |
| 451 | .maxlen = sizeof(int), |
| 452 | .mode = 0644, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 453 | .proc_handler = proc_dointvec, |
Patrick McHardy | f264a7d | 2007-07-07 22:36:24 -0700 | [diff] [blame] | 454 | }, |
Eric W. Biederman | f8572d8 | 2009-11-05 13:32:03 -0800 | [diff] [blame] | 455 | { } |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 456 | }; |
| 457 | |
| 458 | #define NET_NF_CONNTRACK_MAX 2089 |
| 459 | |
| 460 | static ctl_table nf_ct_netfilter_table[] = { |
| 461 | { |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 462 | .procname = "nf_conntrack_max", |
| 463 | .data = &nf_conntrack_max, |
| 464 | .maxlen = sizeof(int), |
| 465 | .mode = 0644, |
Alexey Dobriyan | 6d9f239 | 2008-11-03 18:21:05 -0800 | [diff] [blame] | 466 | .proc_handler = proc_dointvec, |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 467 | }, |
Eric W. Biederman | f8572d8 | 2009-11-05 13:32:03 -0800 | [diff] [blame] | 468 | { } |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 469 | }; |
| 470 | |
Patrick McHardy | 9e23249 | 2008-01-31 04:54:45 -0800 | [diff] [blame] | 471 | static struct ctl_path nf_ct_path[] = { |
Eric W. Biederman | f8572d8 | 2009-11-05 13:32:03 -0800 | [diff] [blame] | 472 | { .procname = "net", }, |
Pavel Emelyanov | 3d7cc2b | 2008-01-09 00:33:11 -0800 | [diff] [blame] | 473 | { } |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 474 | }; |
Pavel Emelyanov | 3d7cc2b | 2008-01-09 00:33:11 -0800 | [diff] [blame] | 475 | |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 476 | static int nf_conntrack_standalone_init_sysctl(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 477 | { |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 478 | struct ctl_table *table; |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 479 | |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 480 | if (net_eq(net, &init_net)) { |
| 481 | nf_ct_netfilter_header = |
| 482 | register_sysctl_paths(nf_ct_path, nf_ct_netfilter_table); |
| 483 | if (!nf_ct_netfilter_header) |
| 484 | goto out; |
| 485 | } |
| 486 | |
| 487 | table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table), |
| 488 | GFP_KERNEL); |
| 489 | if (!table) |
| 490 | goto out_kmemdup; |
| 491 | |
| 492 | table[1].data = &net->ct.count; |
Patrick McHardy | d696c7b | 2010-02-08 11:18:07 -0800 | [diff] [blame] | 493 | table[2].data = &net->ct.htable_size; |
Alexey Dobriyan | c04d055 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 494 | table[3].data = &net->ct.sysctl_checksum; |
Alexey Dobriyan | c2a2c7e | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 495 | table[4].data = &net->ct.sysctl_log_invalid; |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 496 | |
| 497 | net->ct.sysctl_header = register_net_sysctl_table(net, |
| 498 | nf_net_netfilter_sysctl_path, table); |
| 499 | if (!net->ct.sysctl_header) |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 500 | goto out_unregister_netfilter; |
| 501 | |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 502 | return 0; |
| 503 | |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 504 | out_unregister_netfilter: |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 505 | kfree(table); |
| 506 | out_kmemdup: |
| 507 | if (net_eq(net, &init_net)) |
| 508 | unregister_sysctl_table(nf_ct_netfilter_header); |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 509 | out: |
Stephen Hemminger | 654d0fb | 2010-05-13 15:02:08 +0200 | [diff] [blame] | 510 | printk(KERN_ERR "nf_conntrack: can't register to sysctl.\n"); |
Krzysztof Piotr Oledzki | 9714be7 | 2008-08-06 02:35:44 -0700 | [diff] [blame] | 511 | return -ENOMEM; |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 512 | } |
| 513 | |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 514 | static void nf_conntrack_standalone_fini_sysctl(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 515 | { |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 516 | struct ctl_table *table; |
| 517 | |
| 518 | if (net_eq(net, &init_net)) |
| 519 | unregister_sysctl_table(nf_ct_netfilter_header); |
| 520 | table = net->ct.sysctl_header->ctl_table_arg; |
| 521 | unregister_net_sysctl_table(net->ct.sysctl_header); |
| 522 | kfree(table); |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 523 | } |
| 524 | #else |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 525 | static int nf_conntrack_standalone_init_sysctl(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 526 | { |
| 527 | return 0; |
| 528 | } |
| 529 | |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 530 | static void nf_conntrack_standalone_fini_sysctl(struct net *net) |
Alexey Dobriyan | b916f7d | 2008-03-20 15:15:43 +0100 | [diff] [blame] | 531 | { |
| 532 | } |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 533 | #endif /* CONFIG_SYSCTL */ |
| 534 | |
Alexey Dobriyan | dfdb8d7 | 2008-10-08 11:35:02 +0200 | [diff] [blame] | 535 | static int nf_conntrack_net_init(struct net *net) |
| 536 | { |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 537 | int ret; |
| 538 | |
| 539 | ret = nf_conntrack_init(net); |
| 540 | if (ret < 0) |
| 541 | goto out_init; |
| 542 | ret = nf_conntrack_standalone_init_proc(net); |
| 543 | if (ret < 0) |
| 544 | goto out_proc; |
Alexey Dobriyan | c04d055 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 545 | net->ct.sysctl_checksum = 1; |
Alexey Dobriyan | c2a2c7e | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 546 | net->ct.sysctl_log_invalid = 0; |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 547 | ret = nf_conntrack_standalone_init_sysctl(net); |
| 548 | if (ret < 0) |
| 549 | goto out_sysctl; |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 550 | return 0; |
| 551 | |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 552 | out_sysctl: |
| 553 | nf_conntrack_standalone_fini_proc(net); |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 554 | out_proc: |
| 555 | nf_conntrack_cleanup(net); |
| 556 | out_init: |
| 557 | return ret; |
Alexey Dobriyan | dfdb8d7 | 2008-10-08 11:35:02 +0200 | [diff] [blame] | 558 | } |
| 559 | |
| 560 | static void nf_conntrack_net_exit(struct net *net) |
| 561 | { |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 562 | nf_conntrack_standalone_fini_sysctl(net); |
Alexey Dobriyan | b2ce2c7 | 2008-10-08 11:35:05 +0200 | [diff] [blame] | 563 | nf_conntrack_standalone_fini_proc(net); |
Alexey Dobriyan | dfdb8d7 | 2008-10-08 11:35:02 +0200 | [diff] [blame] | 564 | nf_conntrack_cleanup(net); |
| 565 | } |
| 566 | |
| 567 | static struct pernet_operations nf_conntrack_net_ops = { |
| 568 | .init = nf_conntrack_net_init, |
| 569 | .exit = nf_conntrack_net_exit, |
| 570 | }; |
| 571 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame] | 572 | static int __init nf_conntrack_standalone_init(void) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 573 | { |
Alexey Dobriyan | 8025070 | 2008-10-08 11:35:08 +0200 | [diff] [blame] | 574 | return register_pernet_subsys(&nf_conntrack_net_ops); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 575 | } |
| 576 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame] | 577 | static void __exit nf_conntrack_standalone_fini(void) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 578 | { |
Alexey Dobriyan | dfdb8d7 | 2008-10-08 11:35:02 +0200 | [diff] [blame] | 579 | unregister_pernet_subsys(&nf_conntrack_net_ops); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 580 | } |
| 581 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame] | 582 | module_init(nf_conntrack_standalone_init); |
| 583 | module_exit(nf_conntrack_standalone_fini); |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 584 | |
| 585 | /* Some modules need us, but don't depend directly on any symbol. |
| 586 | They should call this. */ |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 587 | void need_conntrack(void) |
Yasuyuki Kozakai | 9fb9cbb | 2005-11-09 16:38:16 -0800 | [diff] [blame] | 588 | { |
| 589 | } |
Patrick McHardy | 13b1833 | 2006-12-02 22:11:25 -0800 | [diff] [blame] | 590 | EXPORT_SYMBOL_GPL(need_conntrack); |