--- zzzz-none-000/linux-3.10.107/include/net/route.h 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/include/net/route.h 2021-02-04 17:41:59.000000000 +0000 @@ -28,6 +28,8 @@ #include #include #include +#include +#include #include #include #include @@ -36,12 +38,17 @@ #include #include +/* IPv4 datagram length is stored into 16bit field (tot_len) */ +#define IP_MAX_MTU 0xFFFFU + #define RTO_ONLINK 0x01 #define RT_CONN_FLAGS(sk) (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE)) +#define RT_CONN_FLAGS_TOS(sk,tos) (RT_TOS(tos) | sock_flag(sk, SOCK_LOCALROUTE)) struct fib_nh; struct fib_info; +struct uncached_list; struct rtable { struct dst_entry dst; @@ -59,7 +66,10 @@ /* Miscellaneous cached information */ u32 rt_pmtu; + u32 rt_table_id; + struct list_head rt_uncached; + struct uncached_list *rt_uncached_list; }; static inline bool rt_is_input_route(const struct rtable *rt) @@ -87,34 +97,36 @@ }; struct rt_cache_stat { - unsigned int in_hit; unsigned int in_slow_tot; unsigned int in_slow_mc; unsigned int in_no_route; unsigned int in_brd; unsigned int in_martian_dst; unsigned int in_martian_src; - unsigned int out_hit; unsigned int out_slow_tot; unsigned int out_slow_mc; - unsigned int gc_total; - unsigned int gc_ignored; - unsigned int gc_goal_miss; - unsigned int gc_dst_overflow; - unsigned int in_hlist_search; - unsigned int out_hlist_search; }; extern struct ip_rt_acct __percpu *ip_rt_acct; struct in_device; -extern int ip_rt_init(void); -extern void rt_cache_flush(struct net *net); -extern void rt_flush_dev(struct net_device *dev); -extern struct rtable *__ip_route_output_key(struct net *, struct flowi4 *flp); -extern struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, - struct sock *sk); -extern struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_orig); + +int ip_rt_init(void); +void rt_cache_flush(struct net *net); +void rt_flush_dev(struct net_device *dev); +struct rtable *__ip_route_output_key_hash(struct net *, struct flowi4 *flp, + int mp_hash); + +static inline struct rtable *__ip_route_output_key(struct net *net, + struct flowi4 *flp) +{ + return __ip_route_output_key_hash(net, flp, -1); +} + +struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp, + const struct sock *sk); +struct dst_entry *ipv4_blackhole_route(struct net *net, + struct dst_entry *dst_orig); static inline struct rtable *ip_route_output_key(struct net *net, struct flowi4 *flp) { @@ -162,8 +174,8 @@ return ip_route_output_key(net, fl4); } -extern int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src, - u8 tos, struct net_device *devin); +int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src, + u8 tos, struct net_device *devin); static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src, u8 tos, struct net_device *devin) @@ -179,24 +191,31 @@ return err; } -extern void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu, - int oif, u32 mark, u8 protocol, int flow_flags); -extern void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu); -extern void ipv4_redirect(struct sk_buff *skb, struct net *net, - int oif, u32 mark, u8 protocol, int flow_flags); -extern void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk); -extern void ip_rt_send_redirect(struct sk_buff *skb); - -extern unsigned int inet_addr_type(struct net *net, __be32 addr); -extern unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev, __be32 addr); -extern void ip_rt_multicast_event(struct in_device *); -extern int ip_rt_ioctl(struct net *, unsigned int cmd, void __user *arg); -extern void ip_rt_get_source(u8 *src, struct sk_buff *skb, struct rtable *rt); -extern int ip_rt_dump(struct sk_buff *skb, struct netlink_callback *cb); +void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu, int oif, + u32 mark, u8 protocol, int flow_flags); +void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu); +void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark, + u8 protocol, int flow_flags); +void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk); +void ip_rt_send_redirect(struct sk_buff *skb); + +unsigned int inet_addr_type(struct net *net, __be32 addr); +unsigned int inet_addr_type_table(struct net *net, __be32 addr, u32 tb_id); +unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev, + __be32 addr); +unsigned int inet_addr_type_dev_table(struct net *net, + const struct net_device *dev, + __be32 addr); +void ip_rt_multicast_event(struct in_device *); +int ip_rt_ioctl(struct net *, unsigned int cmd, void __user *arg); +void ip_rt_get_source(u8 *src, struct sk_buff *skb, struct rtable *rt); + +int ip_rt_register_notifier(struct notifier_block *nb); +int ip_rt_unregister_notifier(struct notifier_block *nb); struct in_ifaddr; -extern void fib_add_ifaddr(struct in_ifaddr *); -extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *); +void fib_add_ifaddr(struct in_ifaddr *); +void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *); static inline void ip_rt_put(struct rtable *rt) { @@ -243,14 +262,12 @@ static inline void ip_route_connect_init(struct flowi4 *fl4, __be32 dst, __be32 src, u32 tos, int oif, u8 protocol, __be16 sport, __be16 dport, - struct sock *sk, bool can_sleep) + struct sock *sk) { __u8 flow_flags = 0; if (inet_sk(sk)->transparent) flow_flags |= FLOWI_FLAG_ANYSRC; - if (can_sleep) - flow_flags |= FLOWI_FLAG_CAN_SLEEP; flowi4_init_output(fl4, oif, sk->sk_mark, tos, RT_SCOPE_UNIVERSE, protocol, flow_flags, dst, src, dport, sport); @@ -260,14 +277,23 @@ __be32 dst, __be32 src, u32 tos, int oif, u8 protocol, __be16 sport, __be16 dport, - struct sock *sk, bool can_sleep) + struct sock *sk) { struct net *net = sock_net(sk); struct rtable *rt; ip_route_connect_init(fl4, dst, src, tos, oif, protocol, - sport, dport, sk, can_sleep); + sport, dport, sk); + + if (!src && oif) { + int rc; + + rc = l3mdev_get_saddr(net, oif, fl4); + if (rc < 0) + return ERR_PTR(rc); + src = fl4->saddr; + } if (!dst || !src) { rt = __ip_route_output_key(net, fl4); if (IS_ERR(rt))