linux/include/net/netns/conntrack.h
Pablo Neira Ayuso 252b3e8c1b netfilter: xt_CT: fix crash while destroy ct templates
In (d871bef netfilter: ctnetlink: dump entries from the dying and
unconfirmed lists), we assume that all conntrack objects are
inserted in any of the existing lists. However, template conntrack
objects were not. This results in hitting BUG_ON in the
destroy_conntrack path while removing a rule that uses the CT target.

This patch fixes the situation by adding the template lists, which
is where template conntrack objects reside now.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2012-12-16 23:44:12 +01:00

101 lines
2.4 KiB
C

#ifndef __NETNS_CONNTRACK_H
#define __NETNS_CONNTRACK_H
#include <linux/list.h>
#include <linux/list_nulls.h>
#include <linux/atomic.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
struct ctl_table_header;
struct nf_conntrack_ecache;
struct nf_proto_net {
#ifdef CONFIG_SYSCTL
struct ctl_table_header *ctl_table_header;
struct ctl_table *ctl_table;
#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
struct ctl_table_header *ctl_compat_header;
struct ctl_table *ctl_compat_table;
#endif
#endif
unsigned int users;
};
struct nf_generic_net {
struct nf_proto_net pn;
unsigned int timeout;
};
struct nf_tcp_net {
struct nf_proto_net pn;
unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
unsigned int tcp_loose;
unsigned int tcp_be_liberal;
unsigned int tcp_max_retrans;
};
enum udp_conntrack {
UDP_CT_UNREPLIED,
UDP_CT_REPLIED,
UDP_CT_MAX
};
struct nf_udp_net {
struct nf_proto_net pn;
unsigned int timeouts[UDP_CT_MAX];
};
struct nf_icmp_net {
struct nf_proto_net pn;
unsigned int timeout;
};
struct nf_ip_net {
struct nf_generic_net generic;
struct nf_tcp_net tcp;
struct nf_udp_net udp;
struct nf_icmp_net icmp;
struct nf_icmp_net icmpv6;
#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
struct ctl_table_header *ctl_table_header;
struct ctl_table *ctl_table;
#endif
};
struct netns_ct {
atomic_t count;
unsigned int expect_count;
unsigned int htable_size;
struct kmem_cache *nf_conntrack_cachep;
struct hlist_nulls_head *hash;
struct hlist_head *expect_hash;
struct hlist_nulls_head unconfirmed;
struct hlist_nulls_head dying;
struct hlist_nulls_head tmpl;
struct ip_conntrack_stat __percpu *stat;
struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
int sysctl_events;
unsigned int sysctl_events_retry_timeout;
int sysctl_acct;
int sysctl_tstamp;
int sysctl_checksum;
unsigned int sysctl_log_invalid; /* Log invalid packets */
int sysctl_auto_assign_helper;
bool auto_assign_helper_warned;
struct nf_ip_net nf_ct_proto;
#ifdef CONFIG_NF_NAT_NEEDED
struct hlist_head *nat_bysource;
unsigned int nat_htable_size;
#endif
#ifdef CONFIG_SYSCTL
struct ctl_table_header *sysctl_header;
struct ctl_table_header *acct_sysctl_header;
struct ctl_table_header *tstamp_sysctl_header;
struct ctl_table_header *event_sysctl_header;
struct ctl_table_header *helper_sysctl_header;
#endif
char *slabname;
};
#endif