--- zzzz-none-000/linux-3.10.107/include/net/net_namespace.h 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/include/net/net_namespace.h 2021-02-04 17:41:59.000000000 +0000 @@ -9,12 +9,14 @@ #include #include +#include #include #include #include #include #include #include +#include #include #include #include @@ -22,7 +24,12 @@ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) #include #endif +#include #include +#include +#include +#include +#include struct user_namespace; struct proc_dir_entry; @@ -44,20 +51,19 @@ atomic_t count; /* To decided when the network * namespace should be shut down. */ -#ifdef NETNS_REFCNT_DEBUG - atomic_t use_count; /* To track references we - * destroy on demand - */ -#endif spinlock_t rules_mod_lock; + atomic64_t cookie_gen; + struct list_head list; /* list of network namespaces */ struct list_head cleanup_list; /* namespaces on death row */ struct list_head exit_list; /* Use only net_mutex */ struct user_namespace *user_ns; /* Owning user namespace */ + spinlock_t nsid_lock; + struct idr netns_ids; - unsigned int proc_inum; + struct ns_common ns; struct proc_dir_entry *proc_net; struct proc_dir_entry *proc_net_stat; @@ -74,6 +80,7 @@ struct hlist_head *dev_index_head; unsigned int dev_base_seq; /* protected by rtnl_mutex */ int ifindex; + unsigned int dev_unreg_count; /* core fib_rules */ struct list_head rules_ops; @@ -88,6 +95,9 @@ #if IS_ENABLED(CONFIG_IPV6) struct netns_ipv6 ipv6; #endif +#if IS_ENABLED(CONFIG_IEEE802154_6LOWPAN) + struct netns_ieee802154_lowpan ieee802154_lowpan; +#endif #if defined(CONFIG_IP_SCTP) || defined(CONFIG_IP_SCTP_MODULE) struct netns_sctp sctp; #endif @@ -100,11 +110,17 @@ #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE) struct netns_ct ct; #endif +#if defined(CONFIG_NF_TABLES) || defined(CONFIG_NF_TABLES_MODULE) + struct netns_nftables nft; +#endif #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) struct netns_nf_frag nf_frag; #endif struct sock *nfnl; struct sock *nfnl_stash; +#if IS_ENABLED(CONFIG_NETFILTER_NETLINK_ACCT) + struct list_head nfnl_acct_list; +#endif #endif #ifdef CONFIG_WEXT_CORE struct sk_buff_head wext_nlevents; @@ -115,27 +131,24 @@ #ifdef CONFIG_XFRM struct netns_xfrm xfrm; #endif +#if IS_ENABLED(CONFIG_IP_VS) struct netns_ipvs *ipvs; +#endif +#if IS_ENABLED(CONFIG_MPLS) + struct netns_mpls mpls; +#endif struct sock *diag_nlsk; - atomic_t rt_genid; + atomic_t fnhe_genid; }; -/* - * ifindex generation is per-net namespace, and loopback is - * always the 1st device in ns (see net_dev_init), thus any - * loopback device should get ifindex 1 - */ - -#define LOOPBACK_IFINDEX 1 - #include /* Init's network namespace */ extern struct net init_net; #ifdef CONFIG_NET_NS -extern struct net *copy_net_ns(unsigned long flags, - struct user_namespace *user_ns, struct net *old_net); +struct net *copy_net_ns(unsigned long flags, struct user_namespace *user_ns, + struct net *old_net); #else /* CONFIG_NET_NS */ #include @@ -152,11 +165,19 @@ extern struct list_head net_namespace_list; -extern struct net *get_net_ns_by_pid(pid_t pid); -extern struct net *get_net_ns_by_fd(int pid); +struct net *get_net_ns_by_pid(pid_t pid); +struct net *get_net_ns_by_fd(int pid); + +#ifdef CONFIG_SYSCTL +void ipx_register_sysctl(void); +void ipx_unregister_sysctl(void); +#else +#define ipx_register_sysctl() +#define ipx_unregister_sysctl() +#endif #ifdef CONFIG_NET_NS -extern void __put_net(struct net *net); +void __put_net(struct net *net); static inline struct net *get_net(struct net *net) { @@ -188,7 +209,7 @@ return net1 == net2; } -extern void net_drop_ns(void *); +void net_drop_ns(void *); #else @@ -216,48 +237,27 @@ #endif -#ifdef NETNS_REFCNT_DEBUG -static inline struct net *hold_net(struct net *net) -{ - if (net) - atomic_inc(&net->use_count); - return net; -} - -static inline void release_net(struct net *net) -{ - if (net) - atomic_dec(&net->use_count); -} -#else -static inline struct net *hold_net(struct net *net) -{ - return net; -} - -static inline void release_net(struct net *net) -{ -} -#endif - +typedef struct { #ifdef CONFIG_NET_NS + struct net *net; +#endif +} possible_net_t; -static inline void write_pnet(struct net **pnet, struct net *net) +static inline void write_pnet(possible_net_t *pnet, struct net *net) { - *pnet = net; +#ifdef CONFIG_NET_NS + pnet->net = net; +#endif } -static inline struct net *read_pnet(struct net * const *pnet) +static inline struct net *read_pnet(const possible_net_t *pnet) { - return *pnet; -} - +#ifdef CONFIG_NET_NS + return pnet->net; #else - -#define write_pnet(pnet, net) do { (void)(net);} while (0) -#define read_pnet(pnet) (&init_net) - + return &init_net; #endif +} #define for_each_net(VAR) \ list_for_each_entry(VAR, &net_namespace_list, list) @@ -277,6 +277,11 @@ #define __net_initconst __initconst #endif +int peernet2id_alloc(struct net *net, struct net *peer); +int peernet2id(struct net *net, struct net *peer); +bool peernet_has_id(struct net *net, struct net *peer); +struct net *get_net_ns_by_id(struct net *net, int id); + struct pernet_operations { struct list_head list; int (*init)(struct net *net); @@ -305,19 +310,19 @@ * device which caused kernel oops, and panics during network * namespace cleanup. So please don't get this wrong. */ -extern int register_pernet_subsys(struct pernet_operations *); -extern void unregister_pernet_subsys(struct pernet_operations *); -extern int register_pernet_device(struct pernet_operations *); -extern void unregister_pernet_device(struct pernet_operations *); +int register_pernet_subsys(struct pernet_operations *); +void unregister_pernet_subsys(struct pernet_operations *); +int register_pernet_device(struct pernet_operations *); +void unregister_pernet_device(struct pernet_operations *); struct ctl_table; struct ctl_table_header; #ifdef CONFIG_SYSCTL -extern int net_sysctl_init(void); -extern struct ctl_table_header *register_net_sysctl(struct net *net, - const char *path, struct ctl_table *table); -extern void unregister_net_sysctl_table(struct ctl_table_header *header); +int net_sysctl_init(void); +struct ctl_table_header *register_net_sysctl(struct net *net, const char *path, + struct ctl_table *table); +void unregister_net_sysctl_table(struct ctl_table_header *header); #else static inline int net_sysctl_init(void) { return 0; } static inline struct ctl_table_header *register_net_sysctl(struct net *net, @@ -330,14 +335,46 @@ } #endif -static inline int rt_genid(struct net *net) +static inline int rt_genid_ipv4(struct net *net) +{ + return atomic_read(&net->ipv4.rt_genid); +} + +static inline void rt_genid_bump_ipv4(struct net *net) +{ + atomic_inc(&net->ipv4.rt_genid); +} + +extern void (*__fib6_flush_trees)(struct net *net); +static inline void rt_genid_bump_ipv6(struct net *net) +{ + if (__fib6_flush_trees) + __fib6_flush_trees(net); +} + +#if IS_ENABLED(CONFIG_IEEE802154_6LOWPAN) +static inline struct netns_ieee802154_lowpan * +net_ieee802154_lowpan(struct net *net) +{ + return &net->ieee802154_lowpan; +} +#endif + +/* For callers who don't really care about whether it's IPv4 or IPv6 */ +static inline void rt_genid_bump_all(struct net *net) +{ + rt_genid_bump_ipv4(net); + rt_genid_bump_ipv6(net); +} + +static inline int fnhe_genid(struct net *net) { - return atomic_read(&net->rt_genid); + return atomic_read(&net->fnhe_genid); } -static inline void rt_genid_bump(struct net *net) +static inline void fnhe_genid_bump(struct net *net) { - atomic_inc(&net->rt_genid); + atomic_inc(&net->fnhe_genid); } #endif /* __NET_NET_NAMESPACE_H */