1 /* 2 * ipv4 in net namespaces 3 */ 4 5 #ifndef __NETNS_IPV4_H__ 6 #define __NETNS_IPV4_H__ 7 8 #include <linux/uidgid.h> 9 #include <net/inet_frag.h> 10 #include <linux/rcupdate.h> 11 12 struct tcpm_hash_bucket; 13 struct ctl_table_header; 14 struct ipv4_devconf; 15 struct fib_rules_ops; 16 struct hlist_head; 17 struct fib_table; 18 struct sock; 19 struct local_ports { 20 seqlock_t lock; 21 int range[2]; 22 bool warned; 23 }; 24 25 struct ping_group_range { 26 seqlock_t lock; 27 kgid_t range[2]; 28 }; 29 30 struct netns_ipv4 { 31 #ifdef CONFIG_SYSCTL 32 struct ctl_table_header *forw_hdr; 33 struct ctl_table_header *frags_hdr; 34 struct ctl_table_header *ipv4_hdr; 35 struct ctl_table_header *route_hdr; 36 struct ctl_table_header *xfrm4_hdr; 37 #endif 38 struct ipv4_devconf *devconf_all; 39 struct ipv4_devconf *devconf_dflt; 40 #ifdef CONFIG_IP_MULTIPLE_TABLES 41 struct fib_rules_ops *rules_ops; 42 bool fib_has_custom_rules; 43 struct fib_table __rcu *fib_local; 44 struct fib_table __rcu *fib_main; 45 struct fib_table __rcu *fib_default; 46 #endif 47 #ifdef CONFIG_IP_ROUTE_CLASSID 48 int fib_num_tclassid_users; 49 #endif 50 struct hlist_head *fib_table_hash; 51 bool fib_offload_disabled; 52 struct sock *fibnl; 53 54 struct sock * __percpu *icmp_sk; 55 struct sock *mc_autojoin_sk; 56 57 struct inet_peer_base *peers; 58 struct sock * __percpu *tcp_sk; 59 struct netns_frags frags; 60 #ifdef CONFIG_NETFILTER 61 struct xt_table *iptable_filter; 62 struct xt_table *iptable_mangle; 63 struct xt_table *iptable_raw; 64 struct xt_table *arptable_filter; 65 #ifdef CONFIG_SECURITY 66 struct xt_table *iptable_security; 67 #endif 68 struct xt_table *nat_table; 69 #endif 70 71 int sysctl_icmp_echo_ignore_all; 72 int sysctl_icmp_echo_ignore_broadcasts; 73 int sysctl_icmp_ignore_bogus_error_responses; 74 int sysctl_icmp_ratelimit; 75 int sysctl_icmp_ratemask; 76 int sysctl_icmp_errors_use_inbound_ifaddr; 77 78 struct local_ports ip_local_ports; 79 80 int sysctl_tcp_ecn; 81 int sysctl_tcp_ecn_fallback; 82 83 int sysctl_ip_no_pmtu_disc; 84 int sysctl_ip_fwd_use_pmtu; 85 int sysctl_ip_nonlocal_bind; 86 87 int sysctl_fwmark_reflect; 88 int sysctl_tcp_fwmark_accept; 89 int sysctl_tcp_mtu_probing; 90 int sysctl_tcp_base_mss; 91 int sysctl_tcp_probe_threshold; 92 u32 sysctl_tcp_probe_interval; 93 94 struct ping_group_range ping_group_range; 95 96 atomic_t dev_addr_genid; 97 98 #ifdef CONFIG_SYSCTL 99 unsigned long *sysctl_local_reserved_ports; 100 #endif 101 102 #ifdef CONFIG_IP_MROUTE 103 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES 104 struct mr_table *mrt; 105 #else 106 struct list_head mr_tables; 107 struct fib_rules_ops *mr_rules_ops; 108 #endif 109 #endif 110 atomic_t rt_genid; 111 }; 112 #endif 113