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