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 11 struct tcpm_hash_bucket; 12 struct ctl_table_header; 13 struct ipv4_devconf; 14 struct fib_rules_ops; 15 struct hlist_head; 16 struct fib_table; 17 struct sock; 18 struct local_ports { 19 seqlock_t lock; 20 int range[2]; 21 }; 22 23 struct netns_ipv4 { 24 #ifdef CONFIG_SYSCTL 25 struct ctl_table_header *forw_hdr; 26 struct ctl_table_header *frags_hdr; 27 struct ctl_table_header *ipv4_hdr; 28 struct ctl_table_header *route_hdr; 29 struct ctl_table_header *xfrm4_hdr; 30 #endif 31 struct ipv4_devconf *devconf_all; 32 struct ipv4_devconf *devconf_dflt; 33 #ifdef CONFIG_IP_MULTIPLE_TABLES 34 struct fib_rules_ops *rules_ops; 35 bool fib_has_custom_rules; 36 struct fib_table *fib_local; 37 struct fib_table *fib_main; 38 struct fib_table *fib_default; 39 #endif 40 #ifdef CONFIG_IP_ROUTE_CLASSID 41 int fib_num_tclassid_users; 42 #endif 43 struct hlist_head *fib_table_hash; 44 struct sock *fibnl; 45 46 struct sock **icmp_sk; 47 struct inet_peer_base *peers; 48 struct tcpm_hash_bucket *tcp_metrics_hash; 49 unsigned int tcp_metrics_hash_log; 50 struct netns_frags frags; 51 #ifdef CONFIG_NETFILTER 52 struct xt_table *iptable_filter; 53 struct xt_table *iptable_mangle; 54 struct xt_table *iptable_raw; 55 struct xt_table *arptable_filter; 56 #ifdef CONFIG_SECURITY 57 struct xt_table *iptable_security; 58 #endif 59 struct xt_table *nat_table; 60 #endif 61 62 int sysctl_icmp_echo_ignore_all; 63 int sysctl_icmp_echo_ignore_broadcasts; 64 int sysctl_icmp_ignore_bogus_error_responses; 65 int sysctl_icmp_ratelimit; 66 int sysctl_icmp_ratemask; 67 int sysctl_icmp_errors_use_inbound_ifaddr; 68 69 struct local_ports sysctl_local_ports; 70 71 int sysctl_tcp_ecn; 72 int sysctl_ip_no_pmtu_disc; 73 74 kgid_t sysctl_ping_group_range[2]; 75 76 atomic_t dev_addr_genid; 77 78 #ifdef CONFIG_IP_MROUTE 79 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES 80 struct mr_table *mrt; 81 #else 82 struct list_head mr_tables; 83 struct fib_rules_ops *mr_rules_ops; 84 #endif 85 #endif 86 atomic_t rt_genid; 87 }; 88 #endif 89