diff options
Diffstat (limited to 'include')
41 files changed, 460 insertions, 288 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 606563ef8a72..9012f8775208 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -110,7 +110,29 @@ static inline bool is_zero_ether_addr(const u8 *addr) */ static inline bool is_multicast_ether_addr(const u8 *addr) { - return 0x01 & addr[0]; +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) + u32 a = *(const u32 *)addr; +#else + u16 a = *(const u16 *)addr; +#endif +#ifdef __BIG_ENDIAN + return 0x01 & (a >> ((sizeof(a) * 8) - 8)); +#else + return 0x01 & a; +#endif +} + +static inline bool is_multicast_ether_addr_64bits(const u8 addr[6+2]) +{ +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 +#ifdef __BIG_ENDIAN + return 0x01 & ((*(const u64 *)addr) >> 56); +#else + return 0x01 & (*(const u64 *)addr); +#endif +#else + return is_multicast_ether_addr(addr); +#endif } /** @@ -169,6 +191,24 @@ static inline bool is_valid_ether_addr(const u8 *addr) } /** + * eth_proto_is_802_3 - Determine if a given Ethertype/length is a protocol + * @proto: Ethertype/length value to be tested + * + * Check that the value from the Ethertype/length field is a valid Ethertype. + * + * Return true if the valid is an 802.3 supported Ethertype. + */ +static inline bool eth_proto_is_802_3(__be16 proto) +{ +#ifndef __BIG_ENDIAN + /* if CPU is little endian mask off bits representing LSB */ + proto &= htons(0xFF00); +#endif + /* cast both to u16 and compare since LSB can be ignored */ + return (__force u16)proto >= (__force u16)htons(ETH_P_802_3_MIN); +} + +/** * eth_random_addr - Generate software assigned random Ethernet address * @addr: Pointer to a six-byte array containing the Ethernet address * diff --git a/include/linux/filter.h b/include/linux/filter.h index fa11b3a367be..ce1d72d34382 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -207,6 +207,16 @@ struct bpf_prog_aux; .off = OFF, \ .imm = 0 }) +/* Atomic memory add, *(uint *)(dst_reg + off16) += src_reg */ + +#define BPF_STX_XADD(SIZE, DST, SRC, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_STX | BPF_SIZE(SIZE) | BPF_XADD, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = 0 }) + /* Memory store, *(uint *) (dst_reg + off16) = imm32 */ #define BPF_ST_MEM(SIZE, DST, OFF, IMM) \ @@ -363,9 +373,6 @@ int sk_filter(struct sock *sk, struct sk_buff *skb); void bpf_prog_select_runtime(struct bpf_prog *fp); void bpf_prog_free(struct bpf_prog *fp); -int bpf_convert_filter(struct sock_filter *prog, int len, - struct bpf_insn *new_prog, int *new_len); - struct bpf_prog *bpf_prog_alloc(unsigned int size, gfp_t gfp_extra_flags); struct bpf_prog *bpf_prog_realloc(struct bpf_prog *fp_old, unsigned int size, gfp_t gfp_extra_flags); @@ -377,14 +384,17 @@ static inline void bpf_prog_unlock_free(struct bpf_prog *fp) __bpf_prog_free(fp); } +typedef int (*bpf_aux_classic_check_t)(struct sock_filter *filter, + unsigned int flen); + int bpf_prog_create(struct bpf_prog **pfp, struct sock_fprog_kern *fprog); +int bpf_prog_create_from_user(struct bpf_prog **pfp, struct sock_fprog *fprog, + bpf_aux_classic_check_t trans); void bpf_prog_destroy(struct bpf_prog *fp); int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk); int sk_attach_bpf(u32 ufd, struct sock *sk); int sk_detach_filter(struct sock *sk); - -int bpf_check_classic(const struct sock_filter *filter, unsigned int flen); int sk_get_filter(struct sock *sk, struct sock_filter __user *filter, unsigned int len); diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 97a9373e61e8..70a7fee1efb3 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -366,6 +366,11 @@ extern void free_pages(unsigned long addr, unsigned int order); extern void free_hot_cold_page(struct page *page, bool cold); extern void free_hot_cold_page_list(struct list_head *list, bool cold); +struct page_frag_cache; +extern void *__alloc_page_frag(struct page_frag_cache *nc, + unsigned int fragsz, gfp_t gfp_mask); +extern void __free_page_frag(void *addr); + extern void __free_kmem_pages(struct page *page, unsigned int order); extern void free_kmem_pages(unsigned long addr, unsigned int order); diff --git a/include/linux/if_pppox.h b/include/linux/if_pppox.h index 66a7d7600f43..b49cf923becc 100644 --- a/include/linux/if_pppox.h +++ b/include/linux/if_pppox.h @@ -74,7 +74,7 @@ static inline struct sock *sk_pppox(struct pppox_sock *po) struct module; struct pppox_proto { - int (*create)(struct net *net, struct socket *sock); + int (*create)(struct net *net, struct socket *sock, int kern); int (*ioctl)(struct socket *sock, unsigned int cmd, unsigned long arg); struct module *owner; diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 920e4457ce6e..b9ab677c0c0a 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -539,7 +539,7 @@ static inline void vlan_set_encap_proto(struct sk_buff *skb, */ proto = vhdr->h_vlan_encapsulated_proto; - if (ntohs(proto) >= ETH_P_802_3_MIN) { + if (eth_proto_is_802_3(proto)) { skb->protocol = proto; return; } diff --git a/include/linux/igmp.h b/include/linux/igmp.h index 2c677afeea47..193ad488d3e2 100644 --- a/include/linux/igmp.h +++ b/include/linux/igmp.h @@ -130,5 +130,6 @@ extern void ip_mc_unmap(struct in_device *); extern void ip_mc_remap(struct in_device *); extern void ip_mc_dec_group(struct in_device *in_dev, __be32 addr); extern void ip_mc_inc_group(struct in_device *in_dev, __be32 addr); +int ip_mc_check_igmp(struct sk_buff *skb, struct sk_buff **skb_trimmed); #endif diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 8d37e26a1007..0038ac7466fd 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -226,6 +226,24 @@ struct page_frag { #endif }; +#define PAGE_FRAG_CACHE_MAX_SIZE __ALIGN_MASK(32768, ~PAGE_MASK) +#define PAGE_FRAG_CACHE_MAX_ORDER get_order(PAGE_FRAG_CACHE_MAX_SIZE) + +struct page_frag_cache { + void * va; +#if (PAGE_SIZE < PAGE_FRAG_CACHE_MAX_SIZE) + __u16 offset; + __u16 size; +#else + __u32 offset; +#endif + /* we maintain a pagecount bias, so that we dont dirty cache line + * containing page->_count every time we allocate a fragment. + */ + unsigned int pagecnt_bias; + bool pfmemalloc; +}; + typedef unsigned long __nocast vm_flags_t; /* diff --git a/include/linux/net.h b/include/linux/net.h index 738ea48be889..04aa06852771 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -38,7 +38,6 @@ struct net; #define SOCK_NOSPACE 2 #define SOCK_PASSCRED 3 #define SOCK_PASSSEC 4 -#define SOCK_EXTERNALLY_ALLOCATED 5 #ifndef ARCH_HAS_SOCKET_TYPES /** @@ -208,7 +207,7 @@ void sock_unregister(int family); int __sock_create(struct net *net, int family, int type, int proto, struct socket **res, int kern); int sock_create(int family, int type, int proto, struct socket **res); -int sock_create_kern(int family, int type, int proto, struct socket **res); +int sock_create_kern(struct net *net, int family, int type, int proto, struct socket **res); int sock_create_lite(int family, int type, int proto, struct socket **res); void sock_release(struct socket *sock); int sock_sendmsg(struct socket *sock, struct msghdr *msg); diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 7d59dc6ab789..9672781c593d 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h @@ -66,7 +66,6 @@ enum { NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */ NETIF_F_HW_L2FW_DOFFLOAD_BIT, /* Allow L2 Forwarding in Hardware */ NETIF_F_BUSY_POLL_BIT, /* Busy poll */ - NETIF_F_HW_SWITCH_OFFLOAD_BIT, /* HW switch offload */ /* * Add your fresh new feature above and remember to update @@ -125,7 +124,6 @@ enum { #define NETIF_F_HW_VLAN_STAG_TX __NETIF_F(HW_VLAN_STAG_TX) #define NETIF_F_HW_L2FW_DOFFLOAD __NETIF_F(HW_L2FW_DOFFLOAD) #define NETIF_F_BUSY_POLL __NETIF_F(BUSY_POLL) -#define NETIF_F_HW_SWITCH_OFFLOAD __NETIF_F(HW_SWITCH_OFFLOAD) /* Features valid for ethtool to change */ /* = all defined minus driver/device-class-related */ @@ -161,8 +159,7 @@ enum { */ #define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ NETIF_F_SG | NETIF_F_HIGHDMA | \ - NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED | \ - NETIF_F_HW_SWITCH_OFFLOAD) + NETIF_F_FRAGLIST | NETIF_F_VLAN_CHALLENGED) /* * If one device doesn't support one of these features, then disable it diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 05b9a694e213..cd0951c1893d 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1564,7 +1564,7 @@ struct net_device { const struct net_device_ops *netdev_ops; const struct ethtool_ops *ethtool_ops; #ifdef CONFIG_NET_SWITCHDEV - const struct swdev_ops *swdev_ops; + const struct switchdev_ops *switchdev_ops; #endif const struct header_ops *header_ops; @@ -1652,7 +1652,11 @@ struct net_device { rx_handler_func_t __rcu *rx_handler; void __rcu *rx_handler_data; +#ifdef CONFIG_NET_CLS_ACT + struct tcf_proto __rcu *ingress_cl_list; +#endif struct netdev_queue __rcu *ingress_queue; + unsigned char broadcast[MAX_ADDR_LEN]; #ifdef CONFIG_RFS_ACCEL struct cpu_rmap *rx_cpu_rmap; @@ -2552,10 +2556,6 @@ static inline void netif_tx_wake_all_queues(struct net_device *dev) static inline void netif_tx_stop_queue(struct netdev_queue *dev_queue) { - if (WARN_ON(!dev_queue)) { - pr_info("netif_stop_queue() cannot be called before register_netdev()\n"); - return; - } set_bit(__QUEUE_STATE_DRV_XOFF, &dev_queue->state); } @@ -2571,15 +2571,7 @@ static inline void netif_stop_queue(struct net_device *dev) netif_tx_stop_queue(netdev_get_tx_queue(dev, 0)); } -static inline void netif_tx_stop_all_queues(struct net_device *dev) -{ - unsigned int i; - - for (i = 0; i < dev->num_tx_queues; i++) { - struct netdev_queue *txq = netdev_get_tx_queue(dev, i); - netif_tx_stop_queue(txq); - } -} +void netif_tx_stop_all_queues(struct net_device *dev); static inline bool netif_tx_queue_stopped(const struct netdev_queue *dev_queue) { diff --git a/include/linux/netlink.h b/include/linux/netlink.h index 6835c1279df7..9120edb650a0 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -28,6 +28,8 @@ struct netlink_skb_parms { __u32 dst_group; __u32 flags; struct sock *sk; + bool nsid_is_set; + int nsid; }; #define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb)) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 66e374d62f64..c0b574a414e7 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -927,6 +927,8 @@ static inline __u32 skb_get_hash(struct sk_buff *skb) return skb->hash; } +__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb); + static inline __u32 skb_get_hash_raw(const struct sk_buff *skb) { return skb->hash; @@ -2126,10 +2128,6 @@ static inline void __skb_queue_purge(struct sk_buff_head *list) kfree_skb(skb); } -#define NETDEV_FRAG_PAGE_MAX_ORDER get_order(32768) -#define NETDEV_FRAG_PAGE_MAX_SIZE (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER) -#define NETDEV_PAGECNT_MAX_BIAS NETDEV_FRAG_PAGE_MAX_SIZE - void *netdev_alloc_frag(unsigned int fragsz); struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int length, @@ -2184,6 +2182,11 @@ static inline struct sk_buff *netdev_alloc_skb_ip_align(struct net_device *dev, return __netdev_alloc_skb_ip_align(dev, length, GFP_ATOMIC); } +static inline void skb_free_frag(void *addr) +{ + __free_page_frag(addr); +} + void *napi_alloc_frag(unsigned int fragsz); struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int length, gfp_t gfp_mask); @@ -3417,6 +3420,9 @@ static inline void skb_checksum_none_assert(const struct sk_buff *skb) bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off); int skb_checksum_setup(struct sk_buff *skb, bool recalculate); +struct sk_buff *skb_checksum_trimmed(struct sk_buff *skb, + unsigned int transport_len, + __sum16(*skb_chkf)(struct sk_buff *skb)); u32 skb_get_poff(const struct sk_buff *skb); u32 __skb_get_poff(const struct sk_buff *skb, void *data, diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 3b2911502a8c..e6fb5df22db1 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -199,6 +199,7 @@ struct tcp_sock { syn_fastopen:1, /* SYN includes Fast Open option */ syn_fastopen_exp:1,/* SYN includes Fast Open exp. option */ syn_data_acked:1,/* data in SYN is acked by SYN-ACK */ + save_syn:1, /* Save headers of SYN packet */ is_cwnd_limited:1;/* forward progress limited by snd_cwnd? */ u32 tlp_high_seq; /* snd_nxt at the time of TLP retransmit. */ @@ -326,6 +327,7 @@ struct tcp_sock { * socket. Used to retransmit SYNACKs etc. */ struct request_sock *fastopen_rsk; + u32 *saved_syn; }; enum tsq_flags { @@ -393,4 +395,10 @@ static inline int fastopen_init_queue(struct sock *sk, int backlog) return 0; } +static inline void tcp_saved_syn_free(struct tcp_sock *tp) +{ + kfree(tp->saved_syn); + tp->saved_syn = NULL; +} + #endif /* _LINUX_TCP_H */ diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 80456f72d70a..def59d3a34d5 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -142,6 +142,7 @@ void ipv6_mc_unmap(struct inet6_dev *idev); void ipv6_mc_remap(struct inet6_dev *idev); void ipv6_mc_init_dev(struct inet6_dev *idev); void ipv6_mc_destroy_dev(struct inet6_dev *idev); +int ipv6_mc_check_mld(struct sk_buff *skb, struct sk_buff **skb_trimmed); void addrconf_dad_failure(struct inet6_ifaddr *ifp); bool ipv6_chk_mcast_addr(struct net_device *dev, const struct in6_addr *group, diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index 172632dd9930..db639a4c5ab8 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -74,7 +74,7 @@ void vsock_pending_work(struct work_struct *work); struct sock *__vsock_create(struct net *net, struct socket *sock, struct sock *parent, - gfp_t priority, unsigned short type); + gfp_t priority, unsigned short type, int kern); /**** TRANSPORT ****/ diff --git a/include/net/bond_options.h b/include/net/bond_options.h index ea6546d2c946..c28aca25320e 100644 --- a/include/net/bond_options.h +++ b/include/net/bond_options.h @@ -63,6 +63,9 @@ enum { BOND_OPT_LP_INTERVAL, BOND_OPT_SLAVES, BOND_OPT_TLB_DYNAMIC_LB, + BOND_OPT_AD_ACTOR_SYS_PRIO, + BOND_OPT_AD_ACTOR_SYSTEM, + BOND_OPT_AD_USER_PORT_KEY, BOND_OPT_LAST }; diff --git a/include/net/bonding.h b/include/net/bonding.h index 78ed135e9dea..20defc0353d1 100644 --- a/include/net/bonding.h +++ b/include/net/bonding.h @@ -136,6 +136,9 @@ struct bond_params { int packets_per_slave; int tlb_dynamic_lb; struct reciprocal_value reciprocal_packets_per_slave; + u16 ad_actor_sys_prio; + u16 ad_user_port_key; + u8 ad_actor_system[ETH_ALEN]; }; struct bond_parm_tbl { diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index f8d6813cd5b2..d63ecec73090 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -111,7 +111,7 @@ enum ieee80211_band { * This may be due to the driver or due to regulatory bandwidth * restrictions. * @IEEE80211_CHAN_INDOOR_ONLY: see %NL80211_FREQUENCY_ATTR_INDOOR_ONLY - * @IEEE80211_CHAN_GO_CONCURRENT: see %NL80211_FREQUENCY_ATTR_GO_CONCURRENT + * @IEEE80211_CHAN_IR_CONCURRENT: see %NL80211_FREQUENCY_ATTR_IR_CONCURRENT * @IEEE80211_CHAN_NO_20MHZ: 20 MHz bandwidth is not permitted * on this channel. * @IEEE80211_CHAN_NO_10MHZ: 10 MHz bandwidth is not permitted @@ -129,7 +129,7 @@ enum ieee80211_channel_flags { IEEE80211_CHAN_NO_80MHZ = 1<<7, IEEE80211_CHAN_NO_160MHZ = 1<<8, IEEE80211_CHAN_INDOOR_ONLY = 1<<9, - IEEE80211_CHAN_GO_CONCURRENT = 1<<10, + IEEE80211_CHAN_IR_CONCURRENT = 1<<10, IEEE80211_CHAN_NO_20MHZ = 1<<11, IEEE80211_CHAN_NO_10MHZ = 1<<12, }; diff --git a/include/net/codel.h b/include/net/codel.h index 1e18005f7f65..267e70210061 100644 --- a/include/net/codel.h +++ b/include/net/codel.h @@ -7,7 +7,7 @@ * Copyright (C) 2011-2012 Kathleen Nichols <nichols@pollere.com> * Copyright (C) 2011-2012 Van Jacobson <van@pollere.net> * Copyright (C) 2012 Michael D. Taht <dave.taht@bufferbloat.net> - * Copyright (C) 2012 Eric Dumazet <edumazet@google.com> + * Copyright (C) 2012,2015 Eric Dumazet <edumazet@google.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -119,12 +119,14 @@ static inline u32 codel_time_to_us(codel_time_t val) /** * struct codel_params - contains codel parameters * @target: target queue size (in time units) + * @ce_threshold: threshold for marking packets with ECN CE * @interval: width of moving time window * @mtu: device mtu, or minimal queue backlog in bytes. * @ecn: is Explicit Congestion Notification enabled */ struct codel_params { codel_time_t target; + codel_time_t ce_threshold; codel_time_t interval; u32 mtu; bool ecn; @@ -161,19 +163,24 @@ struct codel_vars { * @maxpacket: largest packet we've seen so far * @drop_count: temp count of dropped packets in dequeue() * ecn_mark: number of packets we ECN marked instead of dropping + * ce_mark: number of packets CE marked because sojourn time was above ce_threshold */ struct codel_stats { u32 maxpacket; u32 drop_count; u32 ecn_mark; + u32 ce_mark; }; +#define CODEL_DISABLED_THRESHOLD INT_MAX + static void codel_params_init(struct codel_params *params, const struct Qdisc *sch) { params->interval = MS2TIME(100); params->target = MS2TIME(5); params->mtu = psched_mtu(qdisc_dev(sch)); + params->ce_threshold = CODEL_DISABLED_THRESHOLD; params->ecn = false; } @@ -354,6 +361,9 @@ static struct sk_buff *codel_dequeue(struct Qdisc *sch, vars->rec_inv_sqrt); } end: + if (skb && codel_time_after(vars->ldelay, params->ce_threshold) && + INET_ECN_set_ce(skb)) + stats->ce_mark++; return skb; } #endif diff --git a/include/net/dst.h b/include/net/dst.h index 0fb99a26e973..2bc73f8a00a9 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -109,7 +109,6 @@ u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old); extern const u32 dst_default_metrics[]; #define DST_METRICS_READ_ONLY 0x1UL -#define DST_METRICS_FORCE_OVERWRITE 0x2UL #define DST_METRICS_FLAGS 0x3UL #define __DST_METRICS_PTR(Y) \ ((u32 *)((Y) & ~DST_METRICS_FLAGS)) @@ -120,11 +119,6 @@ static inline bool dst_metrics_read_only(const struct dst_entry *dst) return dst->_metrics & DST_METRICS_READ_ONLY; } -static inline void dst_metrics_set_force_overwrite(struct dst_entry *dst) -{ - dst->_metrics |= DST_METRICS_FORCE_OVERWRITE; -} - void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old); static inline void dst_destroy_metrics_generic(struct dst_entry *dst) @@ -355,18 +349,6 @@ static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev, __skb_tunnel_rx(skb, dev, net); } -/* Children define the path of the packet through the - * Linux networking. Thus, destinations are stackable. - */ - -static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb) -{ - struct dst_entry *child = dst_clone(skb_dst(skb)->child); - - skb_dst_drop(skb); - return child; -} - int dst_discard_sk(struct sock *sk, struct sk_buff *skb); static inline int dst_discard(struct sk_buff *skb) { diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h index dc8fd81412bf..6d6ef626811a 100644 --- a/include/net/flow_keys.h +++ b/include/net/flow_keys.h @@ -42,4 +42,20 @@ static inline __be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 u32 flow_hash_from_keys(struct flow_keys *keys); unsigned int flow_get_hlen(const unsigned char *data, unsigned int max_len, __be16 protocol); + +/* struct flow_keys_digest: + * + * This structure is used to hold a digest of the full flow keys. This is a + * larger "hash" of a flow to allow definitively matching specific flows where + * the 32 bit skb->hash is not large enough. The size is limited to 16 bytes so + * that it can by used in CB of skb (see sch_choke for an example). + */ +#define FLOW_KEYS_DIGEST_LEN 16 +struct flow_keys_digest { + u8 data[FLOW_KEYS_DIGEST_LEN]; +}; + +void make_flow_keys_digest(struct flow_keys_digest *digest, + const struct flow_keys *flow); + #endif diff --git a/include/net/inet_common.h b/include/net/inet_common.h index 4a92423eefa5..279f83591971 100644 --- a/include/net/inet_common.h +++ b/include/net/inet_common.h @@ -41,7 +41,7 @@ int inet_recv_error(struct sock *sk, struct msghdr *msg, int len, static inline void inet_ctl_sock_destroy(struct sock *sk) { - sk_release_kernel(sk); + sock_release(sk->sk_socket); } #endif diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 20e80fa7bbdd..e00018011028 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -121,44 +121,14 @@ struct rt6_info { struct rt6key rt6i_prefsrc; struct inet6_dev *rt6i_idev; - unsigned long _rt6i_peer; u32 rt6i_metric; + u32 rt6i_pmtu; /* more non-fragment space at head required */ unsigned short rt6i_nfheader_len; u8 rt6i_protocol; }; -static inline struct inet_peer *rt6_peer_ptr(struct rt6_info *rt) -{ - return inetpeer_ptr(rt->_rt6i_peer); -} - -static inline bool rt6_has_peer(struct rt6_info *rt) -{ - return inetpeer_ptr_is_peer(rt->_rt6i_peer); -} - -static inline void __rt6_set_peer(struct rt6_info *rt, struct inet_peer *peer) -{ - __inetpeer_ptr_set_peer(&rt->_rt6i_peer, peer); -} - -static inline bool rt6_set_peer(struct rt6_info *rt, struct inet_peer *peer) -{ - return inetpeer_ptr_set_peer(&rt->_rt6i_peer, peer); -} - -static inline void rt6_init_peer(struct rt6_info *rt, struct inet_peer_base *base) -{ - inetpeer_init_ptr(&rt->_rt6i_peer, base); -} - -static inline void rt6_transfer_peer(struct rt6_info *rt, struct rt6_info *ort) -{ - inetpeer_transfer_peer(&rt->_rt6i_peer, &ort->_rt6i_peer); -} - static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst) { return ((struct rt6_info *)dst)->rt6i_idev; @@ -189,15 +159,6 @@ static inline void rt6_update_expires(struct rt6_info *rt0, int timeout) rt0->rt6i_flags |= RTF_EXPIRES; } -static inline void rt6_set_from(struct rt6_info *rt, struct rt6_info *from) -{ - struct dst_entry *new = (struct dst_entry *) from; - - rt->rt6i_flags &= ~RTF_EXPIRES; - dst_hold(new); - rt->dst.from = new; -} - static inline void ip6_rt_put(struct rt6_info *rt) { /* dst_release() accepts a NULL parameter. diff --git a/include/net/ipv6.h b/include/net/ipv6.h index eec8ad3c9843..53d25ef1699a 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -239,8 +239,10 @@ struct ip6_flowlabel { struct net *fl_net; }; -#define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF) -#define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF) +#define IPV6_FLOWINFO_MASK cpu_to_be32(0x0FFFFFFF) +#define IPV6_FLOWLABEL_MASK cpu_to_be32(0x000FFFFF) +#define IPV6_FLOWLABEL_STATELESS_FLAG cpu_to_be32(0x00080000) + #define IPV6_TCLASS_MASK (IPV6_FLOWINFO_MASK & ~IPV6_FLOWLABEL_MASK) #define IPV6_TCLASS_SHIFT 20 @@ -719,6 +721,9 @@ static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb, hash ^= hash >> 12; flowlabel = (__force __be32)hash & IPV6_FLOWLABEL_MASK; + + if (net->ipv6.sysctl.flowlabel_state_ranges) + flowlabel |= IPV6_FLOWLABEL_STATELESS_FLAG; } return flowlabel; diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h index 0134681acc4c..fe994d2e5286 100644 --- a/include/net/llc_conn.h +++ b/include/net/llc_conn.h @@ -96,7 +96,7 @@ static __inline__ char llc_backlog_type(struct sk_buff *skb) } struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority, - struct proto *prot); + struct proto *prot, int kern); void llc_sk_free(struct sock *sk); void llc_sk_reset(struct sock *sk); diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 8e3668b44c29..2f8b7decace0 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -337,10 +337,16 @@ enum ieee80211_bss_change { * enum ieee80211_event_type - event to be notified to the low level driver * @RSSI_EVENT: AP's rssi crossed the a threshold set by the driver. * @MLME_EVENT: event related to MLME + * @BAR_RX_EVENT: a BAR was received + * @BA_FRAME_TIMEOUT: Frames were released from the reordering buffer because + * they timed out. This won't be called for each frame released, but only + * once each time the timeout triggers. */ enum ieee80211_event_type { RSSI_EVENT, MLME_EVENT, + BAR_RX_EVENT, + BA_FRAME_TIMEOUT, }; /** @@ -354,7 +360,7 @@ enum ieee80211_rssi_event_data { }; /** - * enum ieee80211_rssi_event - data attached to an %RSSI_EVENT + * struct ieee80211_rssi_event - data attached to an %RSSI_EVENT * @data: See &enum ieee80211_rssi_event_data */ struct ieee80211_rssi_event { @@ -388,7 +394,7 @@ enum ieee80211_mlme_event_status { }; /** - * enum ieee80211_mlme_event - data attached to an %MLME_EVENT + * struct ieee80211_mlme_event - data attached to an %MLME_EVENT * @data: See &enum ieee80211_mlme_event_data * @status: See &enum ieee80211_mlme_event_status * @reason: the reason code if applicable @@ -400,16 +406,31 @@ struct ieee80211_mlme_event { }; /** + * struct ieee80211_ba_event - data attached for BlockAck related events + * @sta: pointer to the &ieee80211_sta to which this event relates + * @tid: the tid + * @ssn: the starting sequence number (for %BAR_RX_EVENT) + */ +struct ieee80211_ba_event { + struct ieee80211_sta *sta; + u16 tid; + u16 ssn; +}; + +/** * struct ieee80211_event - event to be sent to the driver - * @type The event itself. See &enum ieee80211_event_type. + * @type: The event itself. See &enum ieee80211_event_type. * @rssi: relevant if &type is %RSSI_EVENT * @mlme: relevant if &type is %AUTH_EVENT + * @ba: relevant if &type is %BAR_RX_EVENT or %BA_FRAME_TIMEOUT + * @u:union holding the fields above */ struct ieee80211_event { enum ieee80211_event_type type; union { struct ieee80211_rssi_event rssi; struct ieee80211_mlme_event mlme; + struct ieee80211_ba_event ba; } u; }; @@ -1480,6 +1501,47 @@ struct ieee80211_key_conf { u8 key[0]; }; +#define IEEE80211_MAX_PN_LEN 16 + +/** + * struct ieee80211_key_seq - key sequence counter + * + * @tkip: TKIP data, containing IV32 and IV16 in host byte order + * @ccmp: PN data, most significant byte first (big endian, + * reverse order than in packet) + * @aes_cmac: PN data, most significant byte first (big endian, + * reverse order than in packet) + * @aes_gmac: PN data, most significant byte first (big endian, + * reverse order than in packet) + * @gcmp: PN data, most significant byte first (big endian, + * reverse order than in packet) + * @hw: data for HW-only (e.g. cipher scheme) keys + */ +struct ieee80211_key_seq { + union { + struct { + u32 iv32; + u16 iv16; + } tkip; + struct { + u8 pn[6]; + } ccmp; + struct { + u8 pn[6]; + } aes_cmac; + struct { + u8 pn[6]; + } aes_gmac; + struct { + u8 pn[6]; + } gcmp; + struct { + u8 seq[IEEE80211_MAX_PN_LEN]; + u8 seq_len; + } hw; + }; +}; + /** * struct ieee80211_cipher_scheme - cipher scheme * @@ -1797,6 +1859,10 @@ struct ieee80211_txq { * the driver returns 1. This also forces the driver to advertise its * supported cipher suites. * + * @IEEE80211_HW_SUPPORT_FAST_XMIT: The driver/hardware supports fast-xmit, + * this currently requires only the ability to calculate the duration + * for frames. + * * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface * queue mapping in order to use different queues (not just one per AC) * for different virtual interfaces. See the doc section on HW queue @@ -1845,7 +1911,7 @@ enum ieee80211_hw_flags { IEEE80211_HW_WANT_MONITOR_VIF = 1<<14, IEEE80211_HW_NO_AUTO_VIF = 1<<15, IEEE80211_HW_SW_CRYPTO_CONTROL = 1<<16, - /* free slots */ + IEEE80211_HW_SUPPORT_FAST_XMIT = 1<<17, IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, IEEE80211_HW_CONNECTION_MONITOR = 1<<19, IEEE80211_HW_QUEUE_CONTROL = 1<<20, @@ -1939,8 +2005,8 @@ enum ieee80211_hw_flags { * Use the %IEEE80211_RADIOTAP_VHT_KNOWN_* values. * * @netdev_features: netdev features to be set in each netdev created - * from this HW. Note only HW checksum features are currently - * compatible with mac80211. Other feature bits will be rejected. + * from this HW. Note that not all features are usable with mac80211, + * other features will be rejected during HW registration. * * @uapsd_queues: This bitmap is included in (re)association frame to indicate * for each access category if it is uAPSD trigger-enabled and delivery- @@ -2504,10 +2570,6 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * stack. It is always safe to pass more frames than requested, * but this has negative impact on power consumption. * - * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS, - * think of the BSS as your network segment and then this corresponds - * to the regular ethernet device promiscuous mode. - * * @FIF_ALLMULTI: pass all multicast frames, this is used if requested * by the user or if the hardware is not capable of filtering by * multicast address. @@ -2524,8 +2586,8 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * mac80211 needs to do and the amount of CPU wakeups, so you should * honour this flag if possible. * - * @FIF_CONTROL: pass control frames (except for PS Poll), if PROMISC_IN_BSS - * is not set then only those addressed to this station. + * @FIF_CONTROL: pass control frames (except for PS Poll) addressed to this + * station * * @FIF_OTHER_BSS: pass frames destined to other BSSes * @@ -2535,7 +2597,6 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); * @FIF_PROBE_REQ: pass probe request frames */ enum ieee80211_filter_flags { - FIF_PROMISC_IN_BSS = 1<<0, FIF_ALLMULTI = 1<<1, FIF_FCSFAIL = 1<<2, FIF_PLCPFAIL = 1<<3, @@ -2818,9 +2879,9 @@ enum ieee80211_reconfig_type { * Returns zero if statistics are available. * The callback can sleep. * - * @get_tkip_seq: If your device implements TKIP encryption in hardware this - * callback should be provided to read the TKIP transmit IVs (both IV32 - * and IV16) for the given key from hardware. + * @get_key_seq: If your device implements encryption in hardware and does + * IV/PN assignment then this callback should be provided to read the + * IV/PN for the given key from hardware. * The callback must be atomic. * * @set_frag_threshold: Configuration of fragmentation threshold. Assign this @@ -3003,7 +3064,7 @@ enum ieee80211_reconfig_type { * The callback can sleep. * @event_callback: Notify driver about any event in mac80211. See * &enum ieee80211_event_type for the different types. - * The callback can sleep. + * The callback must be atomic. * * @release_buffered_frames: Release buffered frames according to the given * parameters. In the case where the driver buffers some frames for @@ -3219,8 +3280,9 @@ struct ieee80211_ops { struct ieee80211_vif *vif); int (*get_stats)(struct ieee80211_hw *hw, struct ieee80211_low_level_stats *stats); - void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx, - u32 *iv32, u16 *iv16); + void (*get_key_seq)(struct ieee80211_hw *hw, + struct ieee80211_key_conf *key, + struct ieee80211_key_seq *seq); int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); int (*sta_add)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, @@ -3468,14 +3530,15 @@ enum ieee80211_tpt_led_trigger_flags { }; #ifdef CONFIG_MAC80211_LEDS -char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); -char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); -char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); -char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); -char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, - unsigned int flags, - const struct ieee80211_tpt_blink *blink_table, - unsigned int blink_table_len); +const char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); +const char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); +const char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); +const char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); +const char * +__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, + unsigned int flags, + const struct ieee80211_tpt_blink *blink_table, + unsigned int blink_table_len); #endif /** * ieee80211_get_tx_led_name - get name of TX LED @@ -3489,7 +3552,7 @@ char *__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, * * Return: The name of the LED trigger. %NULL if not configured for LEDs. */ -static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) +static inline const char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) { #ifdef CONFIG_MAC80211_LEDS return __ieee80211_get_tx_led_name(hw); @@ -3510,7 +3573,7 @@ static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) * * Return: The name of the LED trigger. %NULL if not configured for LEDs. */ -static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) +static inline const char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) { #ifdef CONFIG_MAC80211_LEDS return __ieee80211_get_rx_led_name(hw); @@ -3531,7 +3594,7 @@ static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) * * Return: The name of the LED trigger. %NULL if not configured for LEDs. */ -static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) +static inline const char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) { #ifdef CONFIG_MAC80211_LEDS return __ieee80211_get_assoc_led_name(hw); @@ -3552,7 +3615,7 @@ static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) * * Return: The name of the LED trigger. %NULL if not configured for LEDs. */ -static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) +static inline const char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) { #ifdef CONFIG_MAC80211_LEDS return __ieee80211_get_radio_led_name(hw); @@ -3573,7 +3636,7 @@ static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) * * Note: This function must be called before ieee80211_register_hw(). */ -static inline char * +static inline const char * ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, unsigned int flags, const struct ieee80211_tpt_blink *blink_table, unsigned int blink_table_len) @@ -4254,40 +4317,6 @@ void ieee80211_aes_cmac_calculate_k1_k2(struct ieee80211_key_conf *keyconf, u8 *k1, u8 *k2); /** - * struct ieee80211_key_seq - key sequence counter - * - * @tkip: TKIP data, containing IV32 and IV16 in host byte order - * @ccmp: PN data, most significant byte first (big endian, - * reverse order than in packet) - * @aes_cmac: PN data, most significant byte first (big endian, - * reverse order than in packet) - * @aes_gmac: PN data, most significant byte first (big endian, - * reverse order than in packet) - * @gcmp: PN data, most significant byte first (big endian, - * reverse order than in packet) - */ -struct ieee80211_key_seq { - union { - struct { - u32 iv32; - u16 iv16; - } tkip; - struct { - u8 pn[6]; - } ccmp; - struct { - u8 pn[6]; - } aes_cmac; - struct { - u8 pn[6]; - } aes_gmac; - struct { - u8 pn[6]; - } gcmp; - }; -}; - -/** * ieee80211_get_key_tx_seq - get key TX sequence counter * * @keyconf: the parameter passed with the set key diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index f733656404de..3f850acc844e 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -271,7 +271,9 @@ static inline struct net *read_pnet(const possible_net_t *pnet) #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 { diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h index d2527bf81142..8d93544a2d2b 100644 --- a/include/net/netns/ipv6.h +++ b/include/net/netns/ipv6.h @@ -34,6 +34,7 @@ struct netns_sysctl_ipv6 { int fwmark_reflect; int idgen_retries; int idgen_delay; + int flowlabel_state_ranges; }; struct netns_ipv6 { diff --git a/include/net/request_sock.h b/include/net/request_sock.h index 9f4265ce8892..87935cad2f7b 100644 --- a/include/net/request_sock.h +++ b/include/net/request_sock.h @@ -64,6 +64,7 @@ struct request_sock { struct timer_list rsk_timer; const struct request_sock_ops *rsk_ops; struct sock *sk; + u32 *saved_syn; u32 secid; u32 peer_secid; }; @@ -77,7 +78,7 @@ reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener) req->rsk_ops = ops; sock_hold(sk_listener); req->rsk_listener = sk_listener; - + req->saved_syn = NULL; /* Following is temporary. It is coupled with debugging * helpers in reqsk_put() & reqsk_free() */ @@ -104,6 +105,7 @@ static inline void reqsk_free(struct request_sock *req) req->rsk_ops->destructor(req); if (req->rsk_listener) sock_put(req->rsk_listener); + kfree(req->saved_syn); kmem_cache_free(req->rsk_ops->slab, req); } diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index 6d778efcfdfd..1b0a2e88ed2b 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -501,12 +501,6 @@ static inline int qdisc_enqueue(struct sk_buff *skb, struct Qdisc *sch) return sch->enqueue(skb, sch); } -static inline int qdisc_enqueue_root(struct sk_buff *skb, struct Qdisc *sch) -{ - qdisc_skb_cb(skb)->pkt_len = skb->len; - return qdisc_enqueue(skb, sch) & NET_XMIT_MASK; -} - static inline bool qdisc_is_percpu_stats(const struct Qdisc *q) { return q->flags & TCQ_F_CPUSTATS; @@ -755,8 +749,6 @@ static inline struct sk_buff *skb_act_clone(struct sk_buff *skb, gfp_t gfp_mask, if (n) { n->tc_verd = SET_TC_VERD(n->tc_verd, 0); - n->tc_verd = CLR_TC_OK2MUNGE(n->tc_verd); - n->tc_verd = CLR_TC_MUNGED(n->tc_verd); } return n; } diff --git a/include/net/sock.h b/include/net/sock.h index 3a4898ec8c67..d882f4c8e438 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -184,6 +184,7 @@ struct sock_common { unsigned char skc_reuse:4; unsigned char skc_reuseport:1; unsigned char skc_ipv6only:1; + unsigned char skc_net_refcnt:1; int skc_bound_dev_if; union { struct hlist_node skc_bind_node; @@ -323,6 +324,7 @@ struct sock { #define sk_reuse __sk_common.skc_reuse #define sk_reuseport __sk_common.skc_reuseport #define sk_ipv6only __sk_common.skc_ipv6only +#define sk_net_refcnt __sk_common.skc_net_refcnt #define sk_bound_dev_if __sk_common.skc_bound_dev_if #define sk_bind_node __sk_common.skc_bind_node #define sk_prot __sk_common.skc_prot @@ -1514,9 +1516,8 @@ static inline void unlock_sock_fast(struct sock *sk, bool slow) struct sock *sk_alloc(struct net *net, int family, gfp_t priority, - struct proto *prot); + struct proto *prot, int kern); void sk_free(struct sock *sk); -void sk_release_kernel(struct sock *sk); struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority); struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force, @@ -2192,22 +2193,6 @@ void sock_net_set(struct sock *sk, struct net *net) write_pnet(&sk->sk_net, net); } -/* - * Kernel sockets, f.e. rtnl or icmp_socket, are a part of a namespace. - * They should not hold a reference to a namespace in order to allow - * to stop it. - * Sockets after sk_change_net should be released using sk_release_kernel - */ -static inline void sk_change_net(struct sock *sk, struct net *net) -{ - struct net *current_net = sock_net(sk); - - if (!net_eq(current_net, net)) { - put_net(current_net); - sock_net_set(sk, net); - } -} - static inline struct sock *skb_steal_sock(struct sk_buff *skb) { if (skb->sk) { diff --git a/include/net/switchdev.h b/include/net/switchdev.h index d2e69ee3019a..ea5b1c230d3d 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h @@ -14,153 +14,210 @@ #include <linux/netdevice.h> #include <linux/notifier.h> +#define SWITCHDEV_F_NO_RECURSE BIT(0) + +enum switchdev_trans { + SWITCHDEV_TRANS_NONE, + SWITCHDEV_TRANS_PREPARE, + SWITCHDEV_TRANS_ABORT, + SWITCHDEV_TRANS_COMMIT, +}; + +enum switchdev_attr_id { + SWITCHDEV_ATTR_UNDEFINED, + SWITCHDEV_ATTR_PORT_PARENT_ID, + SWITCHDEV_ATTR_PORT_STP_STATE, + SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS, +}; + +struct switchdev_attr { + enum switchdev_attr_id id; + enum switchdev_trans trans; + u32 flags; + union { + struct netdev_phys_item_id ppid; /* PORT_PARENT_ID */ + u8 stp_state; /* PORT_STP_STATE */ + unsigned long brport_flags; /* PORT_BRIDGE_FLAGS */ + } u; +}; + struct fib_info; +enum switchdev_obj_id { + SWITCHDEV_OBJ_UNDEFINED, + SWITCHDEV_OBJ_PORT_VLAN, + SWITCHDEV_OBJ_IPV4_FIB, +}; + +struct switchdev_obj { + enum switchdev_obj_id id; + enum switchdev_trans trans; + union { + struct switchdev_obj_vlan { /* PORT_VLAN */ + u16 flags; + u16 vid_start; + u16 vid_end; + } vlan; + struct switchdev_obj_ipv4_fib { /* IPV4_FIB */ + u32 dst; + int dst_len; + struct fib_info *fi; + u8 tos; + u8 type; + u32 nlflags; + u32 tb_id; + } ipv4_fib; + } u; +}; + /** * struct switchdev_ops - switchdev operations * - * @swdev_parent_id_get: Called to get an ID of the switch chip this port - * is part of. If driver implements this, it indicates that it - * represents a port of a switch chip. + * @switchdev_port_attr_get: Get a port attribute (see switchdev_attr). * - * @swdev_port_stp_update: Called to notify switch device port of bridge - * port STP state change. + * @switchdev_port_attr_set: Set a port attribute (see switchdev_attr). * - * @swdev_fib_ipv4_add: Called to add/modify IPv4 route to switch device. + * @switchdev_port_obj_add: Add an object to port (see switchdev_obj). * - * @swdev_fib_ipv4_del: Called to delete IPv4 route from switch device. + * @switchdev_port_obj_del: Delete an object from port (see switchdev_obj). */ -struct swdev_ops { - int (*swdev_parent_id_get)(struct net_device *dev, - struct netdev_phys_item_id *psid); - int (*swdev_port_stp_update)(struct net_device *dev, u8 state); - int (*swdev_fib_ipv4_add)(struct net_device *dev, __be32 dst, - int dst_len, struct fib_info *fi, - u8 tos, u8 type, u32 nlflags, - u32 tb_id); - int (*swdev_fib_ipv4_del)(struct net_device *dev, __be32 dst, - int dst_len, struct fib_info *fi, - u8 tos, u8 type, u32 tb_id); +struct switchdev_ops { + int (*switchdev_port_attr_get)(struct net_device *dev, + struct switchdev_attr *attr); + int (*switchdev_port_attr_set)(struct net_device *dev, + struct switchdev_attr *attr); + int (*switchdev_port_obj_add)(struct net_device *dev, + struct switchdev_obj *obj); + int (*switchdev_port_obj_del)(struct net_device *dev, + struct switchdev_obj *obj); }; -enum netdev_switch_notifier_type { - NETDEV_SWITCH_FDB_ADD = 1, - NETDEV_SWITCH_FDB_DEL, +enum switchdev_notifier_type { + SWITCHDEV_FDB_ADD = 1, + SWITCHDEV_FDB_DEL, }; -struct netdev_switch_notifier_info { +struct switchdev_notifier_info { struct net_device *dev; }; -struct netdev_switch_notifier_fdb_info { - struct netdev_switch_notifier_info info; /* must be first */ +struct switchdev_notifier_fdb_info { + struct switchdev_notifier_info info; /* must be first */ const unsigned char *addr; u16 vid; }; static inline struct net_device * -netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info) +switchdev_notifier_info_to_dev(const struct switchdev_notifier_info *info) { return info->dev; } #ifdef CONFIG_NET_SWITCHDEV -int netdev_switch_parent_id_get(struct net_device *dev, - struct netdev_phys_item_id *psid); -int netdev_switch_port_stp_update(struct net_device *dev, u8 state); -int register_netdev_switch_notifier(struct notifier_block *nb); -int unregister_netdev_switch_notifier(struct notifier_block *nb); -int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev, - struct netdev_switch_notifier_info *info); -int netdev_switch_port_bridge_setlink(struct net_device *dev, - struct nlmsghdr *nlh, u16 flags); -int netdev_switch_port_bridge_dellink(struct net_device *dev, - struct nlmsghdr *nlh, u16 flags); -int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev, - struct nlmsghdr *nlh, u16 flags); -int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev, - struct nlmsghdr *nlh, u16 flags); -int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, - u8 tos, u8 type, u32 nlflags, u32 tb_id); -int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, - u8 tos, u8 type, u32 tb_id); -void netdev_switch_fib_ipv4_abort(struct fib_info *fi); +int switchdev_port_attr_get(struct net_device *dev, + struct switchdev_attr *attr); +int switchdev_port_attr_set(struct net_device *dev, + struct switchdev_attr *attr); +int switchdev_port_obj_add(struct net_device *dev, struct switchdev_obj *obj); +int switchdev_port_obj_del(struct net_device *dev, struct switchdev_obj *obj); +int register_switchdev_notifier(struct notifier_block *nb); +int unregister_switchdev_notifier(struct notifier_block *nb); +int call_switchdev_notifiers(unsigned long val, struct net_device *dev, + struct switchdev_notifier_info *info); +int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq, + struct net_device *dev, u32 filter_mask, + int nlflags); +int switchdev_port_bridge_setlink(struct net_device *dev, + struct nlmsghdr *nlh, u16 flags); +int switchdev_port_bridge_dellink(struct net_device *dev, + struct nlmsghdr *nlh, u16 flags); +int switchdev_fib_ipv4_add(u32 dst, int dst_len, struct fib_info *fi, + u8 tos, u8 type, u32 nlflags, u32 tb_id); +int switchdev_fib_ipv4_del(u32 dst, int dst_len, struct fib_info *fi, + u8 tos, u8 type, u32 tb_id); +void switchdev_fib_ipv4_abort(struct fib_info *fi); #else -static inline int netdev_switch_parent_id_get(struct net_device *dev, - struct netdev_phys_item_id *psid) +static inline int switchdev_port_attr_get(struct net_device *dev, + struct switchdev_attr *attr) { return -EOPNOTSUPP; } -static inline int netdev_switch_port_stp_update(struct net_device *dev, - u8 state) +static inline int switchdev_port_attr_set(struct net_device *dev, + struct switchdev_attr *attr) { return -EOPNOTSUPP; } -static inline int register_netdev_switch_notifier(struct notifier_block *nb) +static inline int switchdev_port_obj_add(struct net_device *dev, + struct switchdev_obj *obj) { - return 0; + return -EOPNOTSUPP; } -static inline int unregister_netdev_switch_notifier(struct notifier_block *nb) +static inline int switchdev_port_obj_del(struct net_device *dev, + struct switchdev_obj *obj) +{ + return -EOPNOTSUPP; +} + +static inline int register_switchdev_notifier(struct notifier_block *nb) { return 0; } -static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev, - struct netdev_switch_notifier_info *info) +static inline int unregister_switchdev_notifier(struct notifier_block *nb) { - return NOTIFY_DONE; + return 0; } -static inline int netdev_switch_port_bridge_setlink(struct net_device *dev, - struct nlmsghdr *nlh, - u16 flags) +static inline int call_switchdev_notifiers(unsigned long val, + struct net_device *dev, + struct switchdev_notifier_info *info) { - return -EOPNOTSUPP; + return NOTIFY_DONE; } -static inline int netdev_switch_port_bridge_dellink(struct net_device *dev, - struct nlmsghdr *nlh, - u16 flags) +static inline int switchdev_port_bridge_getlink(struct sk_buff *skb, u32 pid, + u32 seq, struct net_device *dev, + u32 filter_mask, int nlflags) { return -EOPNOTSUPP; } -static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev, - struct nlmsghdr *nlh, - u16 flags) +static inline int switchdev_port_bridge_setlink(struct net_device *dev, + struct nlmsghdr *nlh, + u16 flags) { - return 0; + return -EOPNOTSUPP; } -static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev, - struct nlmsghdr *nlh, - u16 flags) +static inline int switchdev_port_bridge_dellink(struct net_device *dev, + struct nlmsghdr *nlh, + u16 flags) { - return 0; + return -EOPNOTSUPP; } -static inline int netdev_switch_fib_ipv4_add(u32 dst, int dst_len, - struct fib_info *fi, - u8 tos, u8 type, - u32 nlflags, u32 tb_id) +static inline int switchdev_fib_ipv4_add(u32 dst, int dst_len, + struct fib_info *fi, + u8 tos, u8 type, + u32 nlflags, u32 tb_id) { return 0; } -static inline int netdev_switch_fib_ipv4_del(u32 dst, int dst_len, - struct fib_info *fi, - u8 tos, u8 type, u32 tb_id) +static inline int switchdev_fib_ipv4_del(u32 dst, int dst_len, + struct fib_info *fi, + u8 tos, u8 type, u32 tb_id) { return 0; } -static inline void netdev_switch_fib_ipv4_abort(struct fib_info *fi) +static inline void switchdev_fib_ipv4_abort(struct fib_info *fi) { } diff --git a/include/net/tcp.h b/include/net/tcp.h index 6d204f3f9df8..b8ea12880fd9 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -527,7 +527,7 @@ int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int, gfp_t); void tcp_send_probe0(struct sock *); void tcp_send_partial(struct sock *); -int tcp_write_wakeup(struct sock *); +int tcp_write_wakeup(struct sock *, int mib); void tcp_send_fin(struct sock *sk); void tcp_send_active_reset(struct sock *sk, gfp_t priority); int tcp_send_synack(struct sock *); @@ -1043,14 +1043,31 @@ static inline bool tcp_is_cwnd_limited(const struct sock *sk) return tp->is_cwnd_limited; } -static inline void tcp_check_probe_timer(struct sock *sk) +/* Something is really bad, we could not queue an additional packet, + * because qdisc is full or receiver sent a 0 window. + * We do not want to add fuel to the fire, or abort too early, + * so make sure the timer we arm now is at least 200ms in the future, + * regardless of current icsk_rto value (as it could be ~2ms) + */ +static inline unsigned long tcp_probe0_base(const struct sock *sk) { - const struct tcp_sock *tp = tcp_sk(sk); - const struct inet_connection_sock *icsk = inet_csk(sk); + return max_t(unsigned long, inet_csk(sk)->icsk_rto, TCP_RTO_MIN); +} - if (!tp->packets_out && !icsk->icsk_pending) +/* Variant of inet_csk_rto_backoff() used for zero window probes */ +static inline unsigned long tcp_probe0_when(const struct sock *sk, + unsigned long max_when) +{ + u64 when = (u64)tcp_probe0_base(sk) << inet_csk(sk)->icsk_backoff; + + return (unsigned long)min_t(u64, when, max_when); +} + +static inline void tcp_check_probe_timer(struct sock *sk) +{ + if (!tcp_sk(sk)->packets_out && !inet_csk(sk)->icsk_pending) inet_csk_reset_xmit_timer(sk, ICSK_TIME_PROBE0, - icsk->icsk_rto, TCP_RTO_MAX); + tcp_probe0_base(sk), TCP_RTO_MAX); } static inline void tcp_init_wl(struct tcp_sock *tp, u32 seq) diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h index 41892f720057..9692cda5f8fc 100644 --- a/include/uapi/linux/can.h +++ b/include/uapi/linux/can.h @@ -95,11 +95,17 @@ typedef __u32 can_err_mask_t; * @can_dlc: frame payload length in byte (0 .. 8) aka data length code * N.B. the DLC field from ISO 11898-1 Chapter 8.4.2.3 has a 1:1 * mapping of the 'data length code' to the real payload length + * @__pad: padding + * @__res0: reserved / padding + * @__res1: reserved / padding * @data: CAN frame payload (up to 8 byte) */ struct can_frame { canid_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */ __u8 can_dlc; /* frame payload length in byte (0 .. CAN_MAX_DLEN) */ + __u8 __pad; /* padding */ + __u8 __res0; /* reserved / padding */ + __u8 __res1; /* reserved / padding */ __u8 data[CAN_MAX_DLEN] __attribute__((aligned(8))); }; diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h index d9cd19214b98..6d6e502e1051 100644 --- a/include/uapi/linux/if_link.h +++ b/include/uapi/linux/if_link.h @@ -417,6 +417,9 @@ enum { IFLA_BOND_AD_LACP_RATE, IFLA_BOND_AD_SELECT, IFLA_BOND_AD_INFO, + IFLA_BOND_AD_ACTOR_SYS_PRIO, + IFLA_BOND_AD_USER_PORT_KEY, + IFLA_BOND_AD_ACTOR_SYSTEM, __IFLA_BOND_MAX, }; diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h index 1a85940f8ab7..3e34b7d702f8 100644 --- a/include/uapi/linux/netlink.h +++ b/include/uapi/linux/netlink.h @@ -108,6 +108,7 @@ struct nlmsgerr { #define NETLINK_NO_ENOBUFS 5 #define NETLINK_RX_RING 6 #define NETLINK_TX_RING 7 +#define NETLINK_LISTEN_ALL_NSID 8 struct nl_pktinfo { __u32 group; diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 241220c43e86..c0ab6b0a3919 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2620,16 +2620,17 @@ enum nl80211_band_attr { * an indoor surroundings, i.e., it is connected to AC power (and not * through portable DC inverters) or is under the control of a master * that is acting as an AP and is connected to AC power. - * @NL80211_FREQUENCY_ATTR_GO_CONCURRENT: GO operation is allowed on this + * @NL80211_FREQUENCY_ATTR_IR_CONCURRENT: IR operation is allowed on this * channel if it's connected concurrently to a BSS on the same channel on * the 2 GHz band or to a channel in the same UNII band (on the 5 GHz - * band), and IEEE80211_CHAN_RADAR is not set. Instantiating a GO on a - * channel that has the GO_CONCURRENT attribute set can be done when there - * is a clear assessment that the device is operating under the guidance of - * an authorized master, i.e., setting up a GO while the device is also - * connected to an AP with DFS and radar detection on the UNII band (it is - * up to user-space, i.e., wpa_supplicant to perform the required - * verifications) + * band), and IEEE80211_CHAN_RADAR is not set. Instantiating a GO or TDLS + * off-channel on a channel that has the IR_CONCURRENT attribute set can be + * done when there is a clear assessment that the device is operating under + * the guidance of an authorized master, i.e., setting up a GO or TDLS + * off-channel while the device is also connected to an AP with DFS and + * radar detection on the UNII band (it is up to user-space, i.e., + * wpa_supplicant to perform the required verifications). Using this + * attribute for IR is disallowed for master interfaces (IBSS, AP). * @NL80211_FREQUENCY_ATTR_NO_20MHZ: 20 MHz operation is not allowed * on this channel in current regulatory domain. * @NL80211_FREQUENCY_ATTR_NO_10MHZ: 10 MHz operation is not allowed @@ -2641,7 +2642,7 @@ enum nl80211_band_attr { * See https://apps.fcc.gov/eas/comments/GetPublishedDocument.html?id=327&tn=528122 * for more information on the FCC description of the relaxations allowed * by NL80211_FREQUENCY_ATTR_INDOOR_ONLY and - * NL80211_FREQUENCY_ATTR_GO_CONCURRENT. + * NL80211_FREQUENCY_ATTR_IR_CONCURRENT. */ enum nl80211_frequency_attr { __NL80211_FREQUENCY_ATTR_INVALID, @@ -2659,7 +2660,7 @@ enum nl80211_frequency_attr { NL80211_FREQUENCY_ATTR_NO_160MHZ, NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, NL80211_FREQUENCY_ATTR_INDOOR_ONLY, - NL80211_FREQUENCY_ATTR_GO_CONCURRENT, + NL80211_FREQUENCY_ATTR_IR_CONCURRENT, NL80211_FREQUENCY_ATTR_NO_20MHZ, NL80211_FREQUENCY_ATTR_NO_10MHZ, @@ -2672,6 +2673,8 @@ enum nl80211_frequency_attr { #define NL80211_FREQUENCY_ATTR_PASSIVE_SCAN NL80211_FREQUENCY_ATTR_NO_IR #define NL80211_FREQUENCY_ATTR_NO_IBSS NL80211_FREQUENCY_ATTR_NO_IR #define NL80211_FREQUENCY_ATTR_NO_IR NL80211_FREQUENCY_ATTR_NO_IR +#define NL80211_FREQUENCY_ATTR_GO_CONCURRENT \ + NL80211_FREQUENCY_ATTR_IR_CONCURRENT /** * enum nl80211_bitrate_attr - bitrate attributes @@ -2830,7 +2833,7 @@ enum nl80211_sched_scan_match_attr { * @NL80211_RRF_AUTO_BW: maximum available bandwidth should be calculated * base on contiguous rules and wider channels will be allowed to cross * multiple contiguous/overlapping frequency ranges. - * @NL80211_RRF_GO_CONCURRENT: See &NL80211_FREQUENCY_ATTR_GO_CONCURRENT + * @NL80211_RRF_IR_CONCURRENT: See &NL80211_FREQUENCY_ATTR_IR_CONCURRENT * @NL80211_RRF_NO_HT40MINUS: channels can't be used in HT40- operation * @NL80211_RRF_NO_HT40PLUS: channels can't be used in HT40+ operation * @NL80211_RRF_NO_80MHZ: 80MHz operation not allowed @@ -2847,7 +2850,7 @@ enum nl80211_reg_rule_flags { NL80211_RRF_NO_IR = 1<<7, __NL80211_RRF_NO_IBSS = 1<<8, NL80211_RRF_AUTO_BW = 1<<11, - NL80211_RRF_GO_CONCURRENT = 1<<12, + NL80211_RRF_IR_CONCURRENT = 1<<12, NL80211_RRF_NO_HT40MINUS = 1<<13, NL80211_RRF_NO_HT40PLUS = 1<<14, NL80211_RRF_NO_80MHZ = 1<<15, @@ -2859,6 +2862,7 @@ enum nl80211_reg_rule_flags { #define NL80211_RRF_NO_IR NL80211_RRF_NO_IR #define NL80211_RRF_NO_HT40 (NL80211_RRF_NO_HT40MINUS |\ NL80211_RRF_NO_HT40PLUS) +#define NL80211_RRF_GO_CONCURRENT NL80211_RRF_IR_CONCURRENT /* For backport compatibility with older userspace */ #define NL80211_RRF_NO_IR_ALL (NL80211_RRF_NO_IR | __NL80211_RRF_NO_IBSS) diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h index bf08e76bf505..596ffa0c7084 100644 --- a/include/uapi/linux/pkt_cls.h +++ b/include/uapi/linux/pkt_cls.h @@ -35,6 +35,8 @@ bits 9,10,11: redirect counter - redirect TTL. Loop avoidance * * */ +#ifndef __KERNEL__ +/* backwards compat for userspace only */ #define TC_MUNGED _TC_MAKEMASK1(0) #define SET_TC_MUNGED(v) ( TC_MUNGED | (v & ~TC_MUNGED)) #define CLR_TC_MUNGED(v) ( v & ~TC_MUNGED) @@ -42,6 +44,7 @@ bits 9,10,11: redirect counter - redirect TTL. Loop avoidance #define TC_OK2MUNGE _TC_MAKEMASK1(1) #define SET_TC_OK2MUNGE(v) ( TC_OK2MUNGE | (v & ~TC_OK2MUNGE)) #define CLR_TC_OK2MUNGE(v) ( v & ~TC_OK2MUNGE) +#endif #define S_TC_VERD _TC_MAKE32(2) #define M_TC_VERD _TC_MAKEMASK(4,S_TC_VERD) @@ -62,11 +65,13 @@ bits 9,10,11: redirect counter - redirect TTL. Loop avoidance #define SET_TC_NCLS(v) ( TC_NCLS | (v & ~TC_NCLS)) #define CLR_TC_NCLS(v) ( v & ~TC_NCLS) +#ifndef __KERNEL__ #define S_TC_RTTL _TC_MAKE32(9) #define M_TC_RTTL _TC_MAKEMASK(3,S_TC_RTTL) #define G_TC_RTTL(x) _TC_GETVALUE(x,S_TC_RTTL,M_TC_RTTL) #define V_TC_RTTL(x) _TC_MAKEVALUE(x,S_TC_RTTL) #define SET_TC_RTTL(v,n) ((V_TC_RTTL(n)) | (v & ~M_TC_RTTL)) +#endif #define S_TC_AT _TC_MAKE32(12) #define M_TC_AT _TC_MAKEMASK(2,S_TC_AT) diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h index 534b84710745..8d2530daca9f 100644 --- a/include/uapi/linux/pkt_sched.h +++ b/include/uapi/linux/pkt_sched.h @@ -268,7 +268,8 @@ enum { TCA_GRED_STAB, TCA_GRED_DPS, TCA_GRED_MAX_P, - __TCA_GRED_MAX, + TCA_GRED_LIMIT, + __TCA_GRED_MAX, }; #define TCA_GRED_MAX (__TCA_GRED_MAX - 1) @@ -679,6 +680,7 @@ enum { TCA_CODEL_LIMIT, TCA_CODEL_INTERVAL, TCA_CODEL_ECN, + TCA_CODEL_CE_THRESHOLD, __TCA_CODEL_MAX }; @@ -695,6 +697,7 @@ struct tc_codel_xstats { __u32 drop_overlimit; /* number of time max qdisc packet limit was hit */ __u32 ecn_mark; /* number of packets we ECN marked instead of dropped */ __u32 dropping; /* are we in dropping state ? */ + __u32 ce_mark; /* number of CE marked packets because of ce_threshold */ }; /* FQ_CODEL */ @@ -707,6 +710,7 @@ enum { TCA_FQ_CODEL_ECN, TCA_FQ_CODEL_FLOWS, TCA_FQ_CODEL_QUANTUM, + TCA_FQ_CODEL_CE_THRESHOLD, __TCA_FQ_CODEL_MAX }; @@ -730,6 +734,7 @@ struct tc_fq_codel_qd_stats { */ __u32 new_flows_len; /* count of flows in new list */ __u32 old_flows_len; /* count of flows in old list */ + __u32 ce_mark; /* packets above ce_threshold */ }; struct tc_fq_codel_cl_stats { diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h index 6a6fb747c78d..eee8968407f0 100644 --- a/include/uapi/linux/snmp.h +++ b/include/uapi/linux/snmp.h @@ -276,6 +276,8 @@ enum LINUX_MIB_TCPACKSKIPPEDFINWAIT2, /* TCPACKSkippedFinWait2 */ LINUX_MIB_TCPACKSKIPPEDTIMEWAIT, /* TCPACKSkippedTimeWait */ LINUX_MIB_TCPACKSKIPPEDCHALLENGE, /* TCPACKSkippedChallenge */ + LINUX_MIB_TCPWINPROBE, /* TCPWinProbe */ + LINUX_MIB_TCPKEEPALIVE, /* TCPKeepAlive */ __LINUX_MIB_MAX }; diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index faa72f4fa547..51ebedba577f 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -113,6 +113,8 @@ enum { #define TCP_TIMESTAMP 24 #define TCP_NOTSENT_LOWAT 25 /* limit number of unsent bytes in write queue */ #define TCP_CC_INFO 26 /* Get Congestion Control (optional) info */ +#define TCP_SAVE_SYN 27 /* Record SYN headers for new connections */ +#define TCP_SAVED_SYN 28 /* Get SYN headers recorded for connection */ struct tcp_repair_opt { __u32 opt_code; |