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 sock * __percpu *tcp_sk; 58 struct netns_frags frags; 59 #ifdef CONFIG_NETFILTER 60 struct xt_table *iptable_filter; 61 struct xt_table *iptable_mangle; 62 struct xt_table *iptable_raw; 63 struct xt_table *arptable_filter; 64 #ifdef CONFIG_SECURITY 65 struct xt_table *iptable_security; 66 #endif 67 struct xt_table *nat_table; 68 #endif 69 70 int sysctl_icmp_echo_ignore_all; 71 int sysctl_icmp_echo_ignore_broadcasts; 72 int sysctl_icmp_ignore_bogus_error_responses; 73 int sysctl_icmp_ratelimit; 74 int sysctl_icmp_ratemask; 75 int sysctl_icmp_errors_use_inbound_ifaddr; 76 77 struct local_ports ip_local_ports; 78 79 int sysctl_tcp_ecn; 80 int sysctl_ip_no_pmtu_disc; 81 int sysctl_ip_fwd_use_pmtu; 82 int sysctl_ip_nonlocal_bind; 83 84 int sysctl_fwmark_reflect; 85 int sysctl_tcp_fwmark_accept; 86 int sysctl_tcp_mtu_probing; 87 int sysctl_tcp_base_mss; 88 int sysctl_tcp_probe_threshold; 89 u32 sysctl_tcp_probe_interval; 90 91 struct ping_group_range ping_group_range; 92 93 atomic_t dev_addr_genid; 94 95 #ifdef CONFIG_SYSCTL 96 unsigned long *sysctl_local_reserved_ports; 97 #endif 98 99 #ifdef CONFIG_IP_MROUTE 100 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES 101 struct mr_table *mrt; 102 #else 103 struct list_head mr_tables; 104 struct fib_rules_ops *mr_rules_ops; 105 #endif 106 #endif 107 atomic_t rt_genid; 108 }; 109 #endif 110