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 #include <linux/siphash.h> 12 13 struct tcpm_hash_bucket; 14 struct ctl_table_header; 15 struct ipv4_devconf; 16 struct fib_rules_ops; 17 struct hlist_head; 18 struct fib_table; 19 struct sock; 20 struct local_ports { 21 seqlock_t lock; 22 int range[2]; 23 bool warned; 24 }; 25 26 struct ping_group_range { 27 seqlock_t lock; 28 kgid_t range[2]; 29 }; 30 31 struct netns_ipv4 { 32 #ifdef CONFIG_SYSCTL 33 struct ctl_table_header *forw_hdr; 34 struct ctl_table_header *frags_hdr; 35 struct ctl_table_header *ipv4_hdr; 36 struct ctl_table_header *route_hdr; 37 struct ctl_table_header *xfrm4_hdr; 38 #endif 39 struct ipv4_devconf *devconf_all; 40 struct ipv4_devconf *devconf_dflt; 41 #ifdef CONFIG_IP_MULTIPLE_TABLES 42 struct fib_rules_ops *rules_ops; 43 bool fib_has_custom_rules; 44 struct fib_table __rcu *fib_local; 45 struct fib_table __rcu *fib_main; 46 struct fib_table __rcu *fib_default; 47 #endif 48 #ifdef CONFIG_IP_ROUTE_CLASSID 49 int fib_num_tclassid_users; 50 #endif 51 struct hlist_head *fib_table_hash; 52 bool fib_offload_disabled; 53 struct sock *fibnl; 54 55 struct sock * __percpu *icmp_sk; 56 struct sock *mc_autojoin_sk; 57 58 struct inet_peer_base *peers; 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_tcp_ecn_fallback; 83 84 int sysctl_ip_no_pmtu_disc; 85 int sysctl_ip_fwd_use_pmtu; 86 int sysctl_ip_nonlocal_bind; 87 88 int sysctl_fwmark_reflect; 89 int sysctl_tcp_fwmark_accept; 90 int sysctl_tcp_mtu_probing; 91 int sysctl_tcp_base_mss; 92 int sysctl_tcp_min_snd_mss; 93 int sysctl_tcp_probe_threshold; 94 u32 sysctl_tcp_probe_interval; 95 96 struct ping_group_range ping_group_range; 97 98 atomic_t dev_addr_genid; 99 100 #ifdef CONFIG_SYSCTL 101 unsigned long *sysctl_local_reserved_ports; 102 #endif 103 104 #ifdef CONFIG_IP_MROUTE 105 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES 106 struct mr_table *mrt; 107 #else 108 struct list_head mr_tables; 109 struct fib_rules_ops *mr_rules_ops; 110 #endif 111 #endif 112 atomic_t rt_genid; 113 siphash_key_t ip_id_key; 114 }; 115 #endif 116