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Date: Tue, 29 Jan 2019 00:57:35 +0100
From: Pablo Neira Ayuso <pablo@...filter.org>
To: netfilter-devel@...r.kernel.org
Cc: davem@...emloft.net, netdev@...r.kernel.org
Subject: [PATCH 18/33] netfilter: conntrack: unify sysctl handling
From: Florian Westphal <fw@...len.de>
Due to historical reasons, all l4 trackers register their own
sysctls.
This leads to copy&pasted boilerplate code, that does exactly same
thing, just with different data structure.
Place all of this in a single file.
This allows to remove the various ctl_table pointers from the ct_netns
structure and reduces overall code size.
Signed-off-by: Florian Westphal <fw@...len.de>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
net/netfilter/nf_conntrack_proto_dccp.c | 86 +------
net/netfilter/nf_conntrack_proto_generic.c | 30 +--
net/netfilter/nf_conntrack_proto_gre.c | 42 +--
net/netfilter/nf_conntrack_proto_icmp.c | 29 +--
net/netfilter/nf_conntrack_proto_icmpv6.c | 29 +--
net/netfilter/nf_conntrack_proto_sctp.c | 89 +------
net/netfilter/nf_conntrack_proto_tcp.c | 116 +--------
net/netfilter/nf_conntrack_proto_udp.c | 36 +--
net/netfilter/nf_conntrack_standalone.c | 394 ++++++++++++++++++++++++++++-
9 files changed, 391 insertions(+), 460 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 84408ec80624..31ba88311bc4 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -724,90 +724,6 @@ dccp_timeout_nla_policy[CTA_TIMEOUT_DCCP_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-/* template, data assigned later */
-static struct ctl_table dccp_sysctl_table[] = {
- {
- .procname = "nf_conntrack_dccp_timeout_request",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_respond",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_partopen",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_open",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_closereq",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_closing",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_timeout_timewait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_dccp_loose",
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int dccp_kmemdup_sysctl_table(struct net *net, struct nf_proto_net *pn,
- struct nf_dccp_net *dn)
-{
-#ifdef CONFIG_SYSCTL
- if (pn->ctl_table)
- return 0;
-
- pn->ctl_table = kmemdup(dccp_sysctl_table,
- sizeof(dccp_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
-
- pn->ctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST];
- pn->ctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND];
- pn->ctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN];
- pn->ctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN];
- pn->ctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ];
- pn->ctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING];
- pn->ctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT];
- pn->ctl_table[7].data = &dn->dccp_loose;
-
- /* Don't export sysctls to unprivileged users */
- if (net->user_ns != &init_user_ns)
- pn->ctl_table[0].procname = NULL;
-#endif
- return 0;
-}
-
static int dccp_init_net(struct net *net)
{
struct nf_dccp_net *dn = nf_dccp_pernet(net);
@@ -830,7 +746,7 @@ static int dccp_init_net(struct net *net)
dn->dccp_timeout[CT_DCCP_NONE] = dn->dccp_timeout[CT_DCCP_REQUEST];
}
- return dccp_kmemdup_sysctl_table(net, pn, dn);
+ return 0;
}
static struct nf_proto_net *dccp_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index 78358d192c60..0edbf82594d0 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -60,41 +60,13 @@ generic_timeout_nla_policy[CTA_TIMEOUT_GENERIC_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table generic_sysctl_table[] = {
- {
- .procname = "nf_conntrack_generic_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int generic_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_generic_net *gn)
-{
-#ifdef CONFIG_SYSCTL
- pn->ctl_table = kmemdup(generic_sysctl_table,
- sizeof(generic_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
-
- pn->ctl_table[0].data = &gn->timeout;
-#endif
- return 0;
-}
-
static int generic_init_net(struct net *net)
{
struct nf_generic_net *gn = nf_generic_pernet(net);
- struct nf_proto_net *pn = &gn->pn;
gn->timeout = nf_ct_generic_timeout;
- return generic_kmemdup_sysctl_table(pn, gn);
+ return 0;
}
static struct nf_proto_net *generic_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c
index f6391991bcf6..e573ec0fa12b 100644
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -313,46 +313,6 @@ gre_timeout_nla_policy[CTA_TIMEOUT_GRE_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table gre_sysctl_table[] = {
- {
- .procname = "nf_conntrack_gre_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_gre_timeout_stream",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {}
-};
-#endif
-
-static int gre_kmemdup_sysctl_table(struct net *net)
-{
-#ifdef CONFIG_SYSCTL
- struct nf_gre_net *net_gre = gre_pernet(net);
- struct nf_proto_net *nf = &net_gre->nf;
- int i;
-
- if (nf->ctl_table)
- return 0;
-
- nf->ctl_table = kmemdup(gre_sysctl_table,
- sizeof(gre_sysctl_table),
- GFP_KERNEL);
- if (!nf->ctl_table)
- return -ENOMEM;
-
- for (i = 0; i < GRE_CT_MAX; i++)
- nf->ctl_table[i].data = &net_gre->timeouts[i];
-#endif
- return 0;
-}
-
static int gre_init_net(struct net *net)
{
struct nf_gre_net *net_gre = gre_pernet(net);
@@ -362,7 +322,7 @@ static int gre_init_net(struct net *net)
for (i = 0; i < GRE_CT_MAX; i++)
net_gre->timeouts[i] = gre_timeouts[i];
- return gre_kmemdup_sysctl_table(net);
+ return 0;
}
/* protocol helper struct */
diff --git a/net/netfilter/nf_conntrack_proto_icmp.c b/net/netfilter/nf_conntrack_proto_icmp.c
index 1007efae741d..eb77f747759f 100644
--- a/net/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/netfilter/nf_conntrack_proto_icmp.c
@@ -298,41 +298,14 @@ icmp_timeout_nla_policy[CTA_TIMEOUT_ICMP_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table icmp_sysctl_table[] = {
- {
- .procname = "nf_conntrack_icmp_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int icmp_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_icmp_net *in)
-{
-#ifdef CONFIG_SYSCTL
- pn->ctl_table = kmemdup(icmp_sysctl_table,
- sizeof(icmp_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
-
- pn->ctl_table[0].data = &in->timeout;
-#endif
- return 0;
-}
static int icmp_init_net(struct net *net)
{
struct nf_icmp_net *in = nf_icmp_pernet(net);
- struct nf_proto_net *pn = &in->pn;
in->timeout = nf_ct_icmp_timeout;
- return icmp_kmemdup_sysctl_table(pn, in);
+ return 0;
}
static struct nf_proto_net *icmp_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_icmpv6.c b/net/netfilter/nf_conntrack_proto_icmpv6.c
index 6c93c091a8dd..d243ef8a128e 100644
--- a/net/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/netfilter/nf_conntrack_proto_icmpv6.c
@@ -309,41 +309,14 @@ icmpv6_timeout_nla_policy[CTA_TIMEOUT_ICMPV6_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table icmpv6_sysctl_table[] = {
- {
- .procname = "nf_conntrack_icmpv6_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int icmpv6_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_icmp_net *in)
-{
-#ifdef CONFIG_SYSCTL
- pn->ctl_table = kmemdup(icmpv6_sysctl_table,
- sizeof(icmpv6_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
-
- pn->ctl_table[0].data = &in->timeout;
-#endif
- return 0;
-}
static int icmpv6_init_net(struct net *net)
{
struct nf_icmp_net *in = nf_icmpv6_pernet(net);
- struct nf_proto_net *pn = &in->pn;
in->timeout = nf_ct_icmpv6_timeout;
- return icmpv6_kmemdup_sysctl_table(pn, in);
+ return 0;
}
static struct nf_proto_net *icmpv6_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 952f2cc0fd74..31130f218d8f 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -642,93 +642,6 @@ sctp_timeout_nla_policy[CTA_TIMEOUT_SCTP_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-
-#ifdef CONFIG_SYSCTL
-static struct ctl_table sctp_sysctl_table[] = {
- {
- .procname = "nf_conntrack_sctp_timeout_closed",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_cookie_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_cookie_echoed",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_established",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_shutdown_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_shutdown_recd",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_heartbeat_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_sctp_timeout_heartbeat_acked",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif
-
-static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_sctp_net *sn)
-{
-#ifdef CONFIG_SYSCTL
- if (pn->ctl_table)
- return 0;
-
- pn->ctl_table = kmemdup(sctp_sysctl_table,
- sizeof(sctp_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- 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];
- pn->ctl_table[7].data = &sn->timeouts[SCTP_CONNTRACK_HEARTBEAT_SENT];
- pn->ctl_table[8].data = &sn->timeouts[SCTP_CONNTRACK_HEARTBEAT_ACKED];
-#endif
- return 0;
-}
-
static int sctp_init_net(struct net *net)
{
struct nf_sctp_net *sn = nf_sctp_pernet(net);
@@ -746,7 +659,7 @@ static int sctp_init_net(struct net *net)
sn->timeouts[0] = sctp_timeouts[SCTP_CONNTRACK_CLOSED];
}
- return sctp_kmemdup_sysctl_table(pn, sn);
+ return 0;
}
static struct nf_proto_net *sctp_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 32aac9a835d4..422bdedac0ed 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -1387,120 +1387,6 @@ static const struct nla_policy tcp_timeout_nla_policy[CTA_TIMEOUT_TCP_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table tcp_sysctl_table[] = {
- {
- .procname = "nf_conntrack_tcp_timeout_syn_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_syn_recv",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_established",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_fin_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_close_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_last_ack",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_time_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_close",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_max_retrans",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_timeout_unacknowledged",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_tcp_loose",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "nf_conntrack_tcp_be_liberal",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "nf_conntrack_tcp_max_retrans",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int tcp_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_tcp_net *tn)
-{
-#ifdef CONFIG_SYSCTL
- if (pn->ctl_table)
- return 0;
-
- pn->ctl_table = kmemdup(tcp_sysctl_table,
- sizeof(tcp_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
-
- pn->ctl_table[0].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT];
- pn->ctl_table[1].data = &tn->timeouts[TCP_CONNTRACK_SYN_RECV];
- pn->ctl_table[2].data = &tn->timeouts[TCP_CONNTRACK_ESTABLISHED];
- pn->ctl_table[3].data = &tn->timeouts[TCP_CONNTRACK_FIN_WAIT];
- pn->ctl_table[4].data = &tn->timeouts[TCP_CONNTRACK_CLOSE_WAIT];
- pn->ctl_table[5].data = &tn->timeouts[TCP_CONNTRACK_LAST_ACK];
- pn->ctl_table[6].data = &tn->timeouts[TCP_CONNTRACK_TIME_WAIT];
- pn->ctl_table[7].data = &tn->timeouts[TCP_CONNTRACK_CLOSE];
- pn->ctl_table[8].data = &tn->timeouts[TCP_CONNTRACK_RETRANS];
- pn->ctl_table[9].data = &tn->timeouts[TCP_CONNTRACK_UNACK];
- pn->ctl_table[10].data = &tn->tcp_loose;
- pn->ctl_table[11].data = &tn->tcp_be_liberal;
- pn->ctl_table[12].data = &tn->tcp_max_retrans;
-#endif
- return 0;
-}
-
static int tcp_init_net(struct net *net)
{
struct nf_tcp_net *tn = nf_tcp_pernet(net);
@@ -1521,7 +1407,7 @@ static int tcp_init_net(struct net *net)
tn->tcp_max_retrans = nf_ct_tcp_max_retrans;
}
- return tcp_kmemdup_sysctl_table(pn, tn);
+ return 0;
}
static struct nf_proto_net *tcp_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c
index e1f409aa0006..6e81e79844d7 100644
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -260,40 +260,6 @@ udp_timeout_nla_policy[CTA_TIMEOUT_UDP_MAX+1] = {
};
#endif /* CONFIG_NF_CONNTRACK_TIMEOUT */
-#ifdef CONFIG_SYSCTL
-static struct ctl_table udp_sysctl_table[] = {
- {
- .procname = "nf_conntrack_udp_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "nf_conntrack_udp_timeout_stream",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL */
-
-static int udp_kmemdup_sysctl_table(struct nf_proto_net *pn,
- struct nf_udp_net *un)
-{
-#ifdef CONFIG_SYSCTL
- if (pn->ctl_table)
- return 0;
- pn->ctl_table = kmemdup(udp_sysctl_table,
- sizeof(udp_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_table)
- return -ENOMEM;
- pn->ctl_table[0].data = &un->timeouts[UDP_CT_UNREPLIED];
- pn->ctl_table[1].data = &un->timeouts[UDP_CT_REPLIED];
-#endif
- return 0;
-}
static int udp_init_net(struct net *net)
{
@@ -307,7 +273,7 @@ static int udp_init_net(struct net *net)
un->timeouts[i] = udp_timeouts[i];
}
- return udp_kmemdup_sysctl_table(pn, un);
+ return 0;
}
static struct nf_proto_net *udp_get_net_proto(struct net *net)
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index b6177fd73304..d848de713dc0 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -547,8 +547,55 @@ enum nf_ct_sysctl_index {
#ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
NF_SYSCTL_CT_TIMESTAMP,
#endif
+ NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK,
+ NF_SYSCTL_CT_PROTO_TCP_LOOSE,
+ NF_SYSCTL_CT_PROTO_TCP_LIBERAL,
+ NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_UDP,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6,
+#ifdef CONFIG_NF_CT_PROTO_SCTP
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED,
+#endif
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT,
+ NF_SYSCTL_CT_PROTO_DCCP_LOOSE,
+#endif
+#ifdef CONFIG_NF_CT_PROTO_GRE
+ NF_SYSCTL_CT_PROTO_TIMEOUT_GRE,
+ NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM,
+#endif
+
+ __NF_SYSCTL_CT_LAST_SYSCTL,
};
+#define NF_SYSCTL_CT_LAST_SYSCTL (__NF_SYSCTL_CT_LAST_SYSCTL + 1)
+
static struct ctl_table nf_ct_sysctl_table[] = {
[NF_SYSCTL_CT_MAX] = {
.procname = "nf_conntrack_max",
@@ -626,7 +673,235 @@ static struct ctl_table nf_ct_sysctl_table[] = {
.proc_handler = proc_dointvec,
},
#endif
- { }
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC] = {
+ .procname = "nf_conntrack_generic_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_SENT] = {
+ .procname = "nf_conntrack_tcp_timeout_syn_sent",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_SYN_RECV] = {
+ .procname = "nf_conntrack_tcp_timeout_syn_recv",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ESTABLISHED] = {
+ .procname = "nf_conntrack_tcp_timeout_established",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_FIN_WAIT] = {
+ .procname = "nf_conntrack_tcp_timeout_fin_wait",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE_WAIT] = {
+ .procname = "nf_conntrack_tcp_timeout_close_wait",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_LAST_ACK] = {
+ .procname = "nf_conntrack_tcp_timeout_last_ack",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_TIME_WAIT] = {
+ .procname = "nf_conntrack_tcp_timeout_time_wait",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_CLOSE] = {
+ .procname = "nf_conntrack_tcp_timeout_close",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_RETRANS] = {
+ .procname = "nf_conntrack_tcp_timeout_max_retrans",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_UNACK] = {
+ .procname = "nf_conntrack_tcp_timeout_unacknowledged",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TCP_LOOSE] = {
+ .procname = "nf_conntrack_tcp_loose",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ [NF_SYSCTL_CT_PROTO_TCP_LIBERAL] = {
+ .procname = "nf_conntrack_tcp_be_liberal",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ [NF_SYSCTL_CT_PROTO_TCP_MAX_RETRANS] = {
+ .procname = "nf_conntrack_tcp_max_retrans",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP] = {
+ .procname = "nf_conntrack_udp_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM] = {
+ .procname = "nf_conntrack_udp_timeout_stream",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP] = {
+ .procname = "nf_conntrack_icmp_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6] = {
+ .procname = "nf_conntrack_icmpv6_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+#ifdef CONFIG_NF_CT_PROTO_SCTP
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_CLOSED] = {
+ .procname = "nf_conntrack_sctp_timeout_closed",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_WAIT] = {
+ .procname = "nf_conntrack_sctp_timeout_cookie_wait",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_COOKIE_ECHOED] = {
+ .procname = "nf_conntrack_sctp_timeout_cookie_echoed",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ESTABLISHED] = {
+ .procname = "nf_conntrack_sctp_timeout_established",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_SENT] = {
+ .procname = "nf_conntrack_sctp_timeout_shutdown_sent",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_RECD] = {
+ .procname = "nf_conntrack_sctp_timeout_shutdown_recd",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_SHUTDOWN_ACK_SENT] = {
+ .procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_SENT] = {
+ .procname = "nf_conntrack_sctp_timeout_heartbeat_sent",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_HEARTBEAT_ACKED] = {
+ .procname = "nf_conntrack_sctp_timeout_heartbeat_acked",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+#endif
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_REQUEST] = {
+ .procname = "nf_conntrack_dccp_timeout_request",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_RESPOND] = {
+ .procname = "nf_conntrack_dccp_timeout_respond",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_PARTOPEN] = {
+ .procname = "nf_conntrack_dccp_timeout_partopen",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_OPEN] = {
+ .procname = "nf_conntrack_dccp_timeout_open",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSEREQ] = {
+ .procname = "nf_conntrack_dccp_timeout_closereq",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_CLOSING] = {
+ .procname = "nf_conntrack_dccp_timeout_closing",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_TIMEWAIT] = {
+ .procname = "nf_conntrack_dccp_timeout_timewait",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_DCCP_LOOSE] = {
+ .procname = "nf_conntrack_dccp_loose",
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+#endif
+#ifdef CONFIG_NF_CT_PROTO_GRE
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE] = {
+ .procname = "nf_conntrack_gre_timeout",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+ [NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM] = {
+ .procname = "nf_conntrack_gre_timeout_stream",
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_jiffies,
+ },
+#endif
+ {}
};
static struct ctl_table nf_ct_netfilter_table[] = {
@@ -640,14 +915,103 @@ static struct ctl_table nf_ct_netfilter_table[] = {
{ }
};
+static void nf_conntrack_standalone_init_tcp_sysctl(struct net *net,
+ struct ctl_table *table)
+{
+ struct nf_tcp_net *tn = nf_tcp_pernet(net);
+
+#define XASSIGN(XNAME, tn) \
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_TCP_ ## XNAME].data = \
+ &(tn)->timeouts[TCP_CONNTRACK_ ## XNAME]
+
+ XASSIGN(SYN_SENT, tn);
+ XASSIGN(SYN_RECV, tn);
+ XASSIGN(ESTABLISHED, tn);
+ XASSIGN(FIN_WAIT, tn);
+ XASSIGN(CLOSE_WAIT, tn);
+ XASSIGN(LAST_ACK, tn);
+ XASSIGN(TIME_WAIT, tn);
+ XASSIGN(CLOSE, tn);
+ XASSIGN(RETRANS, tn);
+ XASSIGN(UNACK, tn);
+#undef XASSIGN
+#define XASSIGN(XNAME, rval) \
+ table[NF_SYSCTL_CT_PROTO_TCP_ ## XNAME].data = (rval)
+
+ XASSIGN(LOOSE, &tn->tcp_loose);
+ XASSIGN(LIBERAL, &tn->tcp_be_liberal);
+ XASSIGN(MAX_RETRANS, &tn->tcp_max_retrans);
+#undef XASSIGN
+}
+
+static void nf_conntrack_standalone_init_sctp_sysctl(struct net *net,
+ struct ctl_table *table)
+{
+#ifdef CONFIG_NF_CT_PROTO_SCTP
+ struct nf_sctp_net *sn = nf_sctp_pernet(net);
+
+#define XASSIGN(XNAME, sn) \
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_SCTP_ ## XNAME].data = \
+ &(sn)->timeouts[SCTP_CONNTRACK_ ## XNAME]
+
+ XASSIGN(CLOSED, sn);
+ XASSIGN(COOKIE_WAIT, sn);
+ XASSIGN(COOKIE_ECHOED, sn);
+ XASSIGN(ESTABLISHED, sn);
+ XASSIGN(SHUTDOWN_SENT, sn);
+ XASSIGN(SHUTDOWN_RECD, sn);
+ XASSIGN(SHUTDOWN_ACK_SENT, sn);
+ XASSIGN(HEARTBEAT_SENT, sn);
+ XASSIGN(HEARTBEAT_ACKED, sn);
+#undef XASSIGN
+#endif
+}
+
+static void nf_conntrack_standalone_init_dccp_sysctl(struct net *net,
+ struct ctl_table *table)
+{
+#ifdef CONFIG_NF_CT_PROTO_DCCP
+ struct nf_dccp_net *dn = nf_dccp_pernet(net);
+
+#define XASSIGN(XNAME, dn) \
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_DCCP_ ## XNAME].data = \
+ &(dn)->dccp_timeout[CT_DCCP_ ## XNAME]
+
+ XASSIGN(REQUEST, dn);
+ XASSIGN(RESPOND, dn);
+ XASSIGN(PARTOPEN, dn);
+ XASSIGN(OPEN, dn);
+ XASSIGN(CLOSEREQ, dn);
+ XASSIGN(CLOSING, dn);
+ XASSIGN(TIMEWAIT, dn);
+#undef XASSIGN
+
+ table[NF_SYSCTL_CT_PROTO_DCCP_LOOSE].data = &dn->dccp_loose;
+#endif
+}
+
+static void nf_conntrack_standalone_init_gre_sysctl(struct net *net,
+ struct ctl_table *table)
+{
+#ifdef CONFIG_NF_CT_PROTO_GRE
+ struct nf_gre_net *gn = nf_gre_pernet(net);
+
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE].data = &gn->timeouts[GRE_CT_UNREPLIED];
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_GRE_STREAM].data = &gn->timeouts[GRE_CT_REPLIED];
+#endif
+}
+
static int nf_conntrack_standalone_init_sysctl(struct net *net)
{
+ struct nf_udp_net *un = nf_udp_pernet(net);
struct ctl_table *table;
+ BUILD_BUG_ON(ARRAY_SIZE(nf_ct_sysctl_table) != NF_SYSCTL_CT_LAST_SYSCTL);
+
table = kmemdup(nf_ct_sysctl_table, sizeof(nf_ct_sysctl_table),
GFP_KERNEL);
if (!table)
- goto out_kmemdup;
+ return -ENOMEM;
table[NF_SYSCTL_CT_COUNT].data = &net->ct.count;
table[NF_SYSCTL_CT_CHECKSUM].data = &net->ct.sysctl_checksum;
@@ -655,6 +1019,16 @@ static int nf_conntrack_standalone_init_sysctl(struct net *net)
#ifdef CONFIG_NF_CONNTRACK_EVENTS
table[NF_SYSCTL_CT_EVENTS].data = &net->ct.sysctl_events;
#endif
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_GENERIC].data = &nf_generic_pernet(net)->timeout;
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMP].data = &nf_icmp_pernet(net)->timeout;
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_ICMPV6].data = &nf_icmpv6_pernet(net)->timeout;
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP].data = &un->timeouts[UDP_CT_UNREPLIED];
+ table[NF_SYSCTL_CT_PROTO_TIMEOUT_UDP_STREAM].data = &un->timeouts[UDP_CT_REPLIED];
+
+ nf_conntrack_standalone_init_tcp_sysctl(net, table);
+ nf_conntrack_standalone_init_sctp_sysctl(net, table);
+ nf_conntrack_standalone_init_dccp_sysctl(net, table);
+ nf_conntrack_standalone_init_gre_sysctl(net, table);
/* Don't export sysctls to unprivileged users */
if (net->user_ns != &init_user_ns) {
@@ -680,7 +1054,6 @@ static int nf_conntrack_standalone_init_sysctl(struct net *net)
out_unregister_netfilter:
kfree(table);
-out_kmemdup:
return -ENOMEM;
}
@@ -707,27 +1080,26 @@ static int nf_conntrack_pernet_init(struct net *net)
{
int ret;
- ret = nf_conntrack_init_net(net);
+ net->ct.sysctl_checksum = 1;
+
+ ret = nf_conntrack_standalone_init_sysctl(net);
if (ret < 0)
- goto out_init;
+ return ret;
ret = nf_conntrack_standalone_init_proc(net);
if (ret < 0)
goto out_proc;
- net->ct.sysctl_checksum = 1;
- net->ct.sysctl_log_invalid = 0;
- ret = nf_conntrack_standalone_init_sysctl(net);
+ ret = nf_conntrack_init_net(net);
if (ret < 0)
- goto out_sysctl;
+ goto out_init_net;
return 0;
-out_sysctl:
+out_init_net:
nf_conntrack_standalone_fini_proc(net);
out_proc:
nf_conntrack_cleanup_net(net);
-out_init:
return ret;
}
--
2.11.0
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