From: Gao feng <gaofeng@cn.fujitsu.com>
To: pablo@netfilter.org
Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org,
serge.hallyn@canonical.com, ebiederm@xmission.com,
dlezcano@fr.ibm.com, Gao feng <gaofeng@cn.fujitsu.com>
Subject: [PATCH 11/17] netfilter: add namespace support for l4proto_sctp
Date: Mon, 14 May 2012 16:52:21 +0800 [thread overview]
Message-ID: <1336985547-31960-12-git-send-email-gaofeng@cn.fujitsu.com> (raw)
In-Reply-To: <1336985547-31960-1-git-send-email-gaofeng@cn.fujitsu.com>
add pernet_operations sctp_net_ops and register it when
module nf_conntrack_proto_sctp is loaded.
move the l4proto_register from module_init function to
sctp_net_ops.init.
and implement sctp_init_net to initial the pernet sysctl
data for sctp[4,6] protos.
Acked-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
---
net/netfilter/nf_conntrack_proto_sctp.c | 135 ++++++++++++++++++++++++-------
1 files changed, 106 insertions(+), 29 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 97bbc20..3f0fdf8 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -127,6 +127,17 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
}
};
+static int sctp_net_id __read_mostly;
+struct sctp_net {
+ struct nf_proto_net pn;
+ unsigned int timeouts[SCTP_CONNTRACK_MAX];
+};
+
+static inline struct sctp_net *sctp_pernet(struct net *net)
+{
+ return net_generic(net, sctp_net_id);
+}
+
static bool sctp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
struct nf_conntrack_tuple *tuple)
{
@@ -281,7 +292,7 @@ static int sctp_new_state(enum ip_conntrack_dir dir,
static unsigned int *sctp_get_timeouts(struct net *net)
{
- return sctp_timeouts;
+ return sctp_pernet(net)->timeouts;
}
/* Returns verdict for packet, or -NF_ACCEPT for invalid. */
@@ -604,49 +615,42 @@ static struct ctl_table_header *sctp_sysctl_header;
static struct ctl_table sctp_sysctl_table[] = {
{
.procname = "nf_conntrack_sctp_timeout_closed",
- .data = &sctp_timeouts[SCTP_CONNTRACK_CLOSED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_cookie_wait",
- .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_cookie_echoed",
- .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_established",
- .data = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_shutdown_sent",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_shutdown_recd",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
@@ -658,49 +662,42 @@ static struct ctl_table sctp_sysctl_table[] = {
static struct ctl_table sctp_compat_sysctl_table[] = {
{
.procname = "ip_conntrack_sctp_timeout_closed",
- .data = &sctp_timeouts[SCTP_CONNTRACK_CLOSED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_cookie_wait",
- .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_cookie_echoed",
- .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_established",
- .data = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_shutdown_sent",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_shutdown_recd",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
{
.procname = "ip_conntrack_sctp_timeout_shutdown_ack_sent",
- .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT],
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
@@ -710,9 +707,63 @@ static struct ctl_table sctp_compat_sysctl_table[] = {
#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif
+static int sctp_init_net(struct net *net, u_int8_t compat)
+{
+ int i;
+ struct sctp_net *sn = sctp_pernet(net);
+ struct nf_proto_net *pn = (struct nf_proto_net *)sn;
+#ifdef CONFIG_SYSCTL
+#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
+ if (compat) {
+ pn->ctl_compat_table = kmemdup(sctp_compat_sysctl_table,
+ sizeof(sctp_compat_sysctl_table),
+ GFP_KERNEL);
+ if (!pn->ctl_compat_table)
+ return -ENOMEM;
+ pn->ctl_compat_table[0].data = &sn->timeouts[SCTP_CONNTRACK_CLOSED];
+ pn->ctl_compat_table[1].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_WAIT];
+ pn->ctl_compat_table[2].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_ECHOED];
+ pn->ctl_compat_table[3].data = &sn->timeouts[SCTP_CONNTRACK_ESTABLISHED];
+ pn->ctl_compat_table[4].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT];
+ pn->ctl_compat_table[5].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD];
+ pn->ctl_compat_table[6].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT];
+ }
+#endif
+ if (!pn->ctl_table) {
+#else
+ if (!pn->users++) {
+#endif
+ for (i = 0; i < SCTP_CONNTRACK_MAX; i++)
+ sn->timeouts[i] = sctp_timeouts[i];
+#ifdef CONFIG_SYSCTL
+ pn->ctl_table = kmemdup(sctp_sysctl_table,
+ sizeof(sctp_sysctl_table),
+ GFP_KERNEL);
+ if (!pn->ctl_table) {
+#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
+ if (compat) {
+ kfree(pn->ctl_compat_table);
+ pn->ctl_compat_table = NULL;
+ }
+#endif
+ return -ENOMEM;
+ }
+ pn->ctl_table[0].data = &sn->timeouts[SCTP_CONNTRACK_CLOSED];
+ pn->ctl_table[1].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_WAIT];
+ pn->ctl_table[2].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_ECHOED];
+ pn->ctl_table[3].data = &sn->timeouts[SCTP_CONNTRACK_ESTABLISHED];
+ pn->ctl_table[4].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT];
+ pn->ctl_table[5].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD];
+ pn->ctl_table[6].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT];
+#endif
+ }
+ return 0;
+}
+
static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
.l3proto = PF_INET,
.l4proto = IPPROTO_SCTP,
+ .compat = 1,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
@@ -748,11 +799,14 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
.ctl_compat_table = sctp_compat_sysctl_table,
#endif
#endif
+ .net_id = &sctp_net_id,
+ .init_net = sctp_init_net,
};
static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
.l3proto = PF_INET6,
.l4proto = IPPROTO_SCTP,
+ .compat = 0,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
@@ -785,35 +839,58 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = {
.ctl_table_header = &sctp_sysctl_header,
.ctl_table = sctp_sysctl_table,
#endif
+ .net_id = &sctp_net_id,
+ .init_net = sctp_init_net,
};
-static int __init nf_conntrack_proto_sctp_init(void)
+static int sctp_net_init(struct net *net)
{
- int ret;
+ int ret = 0;
- ret = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_sctp4);
- if (ret) {
- pr_err("nf_conntrack_l4proto_sctp4: protocol register failed\n");
+ ret = nf_conntrack_l4proto_register(net,
+ &nf_conntrack_l4proto_sctp4);
+ if (ret < 0) {
+ pr_err("nf_conntrack_l4proto_sctp4 :protocol register failed.\n");
goto out;
}
- ret = nf_conntrack_l4proto_register(&init_net, &nf_conntrack_l4proto_sctp6);
- if (ret) {
- pr_err("nf_conntrack_l4proto_sctp6: protocol register failed\n");
+ ret = nf_conntrack_l4proto_register(net,
+ &nf_conntrack_l4proto_sctp6);
+ if (ret < 0) {
+ pr_err("nf_conntrack_l4proto_sctp6 :protocol register failed.\n");
goto cleanup_sctp4;
}
+ return 0;
+cleanup_sctp4:
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_sctp4);
+out:
return ret;
+}
- cleanup_sctp4:
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_sctp4);
- out:
- return ret;
+static void sctp_net_exit(struct net *net)
+{
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_sctp6);
+ nf_conntrack_l4proto_unregister(net,
+ &nf_conntrack_l4proto_sctp4);
+}
+
+static struct pernet_operations sctp_net_ops = {
+ .init = sctp_net_init,
+ .exit = sctp_net_exit,
+ .id = &sctp_net_id,
+ .size = sizeof(struct sctp_net),
+};
+
+static int __init nf_conntrack_proto_sctp_init(void)
+{
+ return register_pernet_subsys(&sctp_net_ops);
}
static void __exit nf_conntrack_proto_sctp_fini(void)
{
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_sctp6);
- nf_conntrack_l4proto_unregister(&init_net, &nf_conntrack_l4proto_sctp4);
+ unregister_pernet_subsys(&sctp_net_ops);
}
module_init(nf_conntrack_proto_sctp_init);
--
1.7.7.6
next prev parent reply other threads:[~2012-05-14 8:53 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-14 8:52 [PATCH v3 00/17] netfilter: add namespace support for netfilter protos Gao feng
2012-05-14 8:52 ` [PATCH 01/17] netfilter: add struct nf_proto_net for register l4proto sysctl Gao feng
2012-05-23 10:12 ` Pablo Neira Ayuso
2012-05-24 1:35 ` Gao feng
2012-05-24 9:58 ` Pablo Neira Ayuso
2012-05-24 10:54 ` Gao feng
2012-05-24 14:38 ` Pablo Neira Ayuso
2012-05-25 1:05 ` Gao feng
2012-05-25 2:54 ` Pablo Neira Ayuso
2012-05-25 6:02 ` Gao feng
2012-05-26 2:28 ` Gao feng
2012-05-28 9:53 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 02/17] netfilter: add namespace support for l4proto Gao feng
2012-05-23 10:25 ` Pablo Neira Ayuso
2012-05-24 1:52 ` Gao feng
2012-05-24 10:00 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 03/17] netfilter: add namespace support for l3proto Gao feng
2012-05-23 10:29 ` Pablo Neira Ayuso
2012-05-24 1:58 ` Gao feng
2012-05-24 10:04 ` Pablo Neira Ayuso
2012-05-24 10:57 ` Gao feng
2012-05-14 8:52 ` [PATCH 04/17] netfilter: add namespace support for l4proto_generic Gao feng
2012-05-23 10:32 ` Pablo Neira Ayuso
2012-05-24 1:13 ` Gao feng
2012-05-24 9:52 ` Pablo Neira Ayuso
2012-05-24 11:07 ` Gao feng
2012-05-24 14:40 ` Pablo Neira Ayuso
2012-05-26 2:36 ` Gao feng
2012-05-28 9:54 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 05/17] netfilter: add namespace support for l4proto_tcp Gao feng
2012-05-25 3:00 ` Pablo Neira Ayuso
2012-05-25 6:05 ` Gao feng
2012-05-14 8:52 ` [PATCH 06/17] netfilter: add namespace support for l4proto_udp Gao feng
2012-05-14 8:52 ` [PATCH 07/17] netfilter: add namespace support for l4proto_icmp Gao feng
2012-05-14 8:52 ` [PATCH 08/17] netfilter: add namespace support for l4proto_icmpv6 Gao feng
2012-05-14 8:52 ` [PATCH 09/17] netfilter: add namespace support for l3proto_ipv4 Gao feng
2012-05-14 8:52 ` [PATCH 10/17] netfilter: add namespace support for l3proto_ipv6 Gao feng
2012-05-14 8:52 ` Gao feng [this message]
2012-05-14 8:52 ` [PATCH 12/17] netfilter: add namespace support for l4proto_udplite Gao feng
2012-05-14 8:52 ` [PATCH 13/17] netfilter: adjust l4proto_dccp to the nf_conntrack_l4proto_register Gao feng
2012-05-14 8:52 ` [PATCH 14/17] netfilter: adjust l4proto_gre4 " Gao feng
2012-05-14 8:52 ` [PATCH 15/17] netfilter: cleanup sysctl for l4proto and l3proto Gao feng
2012-05-23 10:38 ` Pablo Neira Ayuso
2012-05-24 0:59 ` Gao feng
2012-05-24 9:56 ` Pablo Neira Ayuso
2012-05-14 8:52 ` [PATCH 16/17] netfilter: add namespace support for cttimeout Gao feng
2012-05-23 10:41 ` Pablo Neira Ayuso
2012-05-24 1:04 ` Gao feng
2012-05-14 8:52 ` [PATCH 17/17] netfilter: cttimeout use pernet data of l4proto Gao feng
2012-05-21 8:52 ` [PATCH v3 00/17] netfilter: add namespace support for netfilter protos Gao feng
2012-05-23 10:42 ` Pablo Neira Ayuso
-- strict thread matches above, loose matches on Subject: below --
2012-04-27 9:37 [PATCH v2 " Gao feng
2012-04-27 9:37 ` [PATCH 11/17] netfilter: add namespace support for l4proto_sctp Gao feng
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