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Diffstat (limited to 'include/linux/ipv6.h')
-rw-r--r--include/linux/ipv6.h167
1 files changed, 64 insertions, 103 deletions
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 2cb445a8fc9e..7294e4e89b79 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -3,6 +3,7 @@
#define _IPV6_H
#include <uapi/linux/ipv6.h>
+#include <linux/cache.h>
#define ipv6_optlen(p) (((p)->hdrlen+1) << 3)
#define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
@@ -10,9 +11,17 @@
* This structure contains configuration options per IPv6 link.
*/
struct ipv6_devconf {
- __s32 forwarding;
+ /* RX & TX fastpath fields. */
+ __cacheline_group_begin(ipv6_devconf_read_txrx);
+ __s32 disable_ipv6;
__s32 hop_limit;
__s32 mtu6;
+ __s32 forwarding;
+ __s32 force_forwarding;
+ __s32 disable_policy;
+ __s32 proxy_ndp;
+ __cacheline_group_end(ipv6_devconf_read_txrx);
+
__s32 accept_ra;
__s32 accept_redirects;
__s32 autoconf;
@@ -27,11 +36,14 @@ struct ipv6_devconf {
__s32 use_tempaddr;
__s32 temp_valid_lft;
__s32 temp_prefered_lft;
+ __s32 regen_min_advance;
__s32 regen_max_retry;
__s32 max_desync_factor;
__s32 max_addresses;
__s32 accept_ra_defrtr;
+ __u32 ra_defrtr_metric;
__s32 accept_ra_min_hop_limit;
+ __s32 accept_ra_min_lft;
__s32 accept_ra_pinfo;
__s32 ignore_routes_with_linkdown;
#ifdef CONFIG_IPV6_ROUTER_PREF
@@ -42,7 +54,6 @@ struct ipv6_devconf {
__s32 accept_ra_rt_info_max_plen;
#endif
#endif
- __s32 proxy_ndp;
__s32 accept_source_route;
__s32 accept_ra_from_local;
#ifdef CONFIG_IPV6_OPTIMISTIC_DAD
@@ -50,9 +61,8 @@ struct ipv6_devconf {
__s32 use_optimistic;
#endif
#ifdef CONFIG_IPV6_MROUTE
- __s32 mc_forwarding;
+ atomic_t mc_forwarding;
#endif
- __s32 disable_ipv6;
__s32 drop_unicast_in_l2_multicast;
__s32 accept_dad;
__s32 force_tllao;
@@ -60,6 +70,7 @@ struct ipv6_devconf {
__s32 suppress_frag_ndisc;
__s32 accept_ra_mtu;
__s32 drop_unsolicited_na;
+ __s32 accept_untracked_na;
struct ipv6_stable_secret {
bool initialized;
struct in6_addr secret;
@@ -72,9 +83,14 @@ struct ipv6_devconf {
#endif
__u32 enhanced_dad;
__u32 addr_gen_mode;
- __s32 disable_policy;
__s32 ndisc_tclass;
__s32 rpl_seg_enabled;
+ __u32 ioam6_id;
+ __u32 ioam6_id_wide;
+ __u8 ioam6_enabled;
+ __u8 ndisc_evict_nocarrier;
+ __u8 ra_honor_pio_life;
+ __u8 ra_honor_pio_pflag;
struct ctl_table_header *sysctl_header;
};
@@ -84,7 +100,6 @@ struct ipv6_params {
__s32 autoconf;
};
extern struct ipv6_params ipv6_defaults;
-#include <linux/icmpv6.h>
#include <linux/tcp.h>
#include <linux/udp.h>
@@ -129,6 +144,7 @@ struct inet6_skb_parm {
__u16 dsthao;
#endif
__u16 frag_max_size;
+ __u16 srhoff;
#define IP6SKB_XFRM_TRANSFORMED 1
#define IP6SKB_FORWARDED 2
@@ -138,6 +154,10 @@ struct inet6_skb_parm {
#define IP6SKB_HOPBYHOP 32
#define IP6SKB_L3SLAVE 64
#define IP6SKB_JUMBOGRAM 128
+#define IP6SKB_SEG6 256
+#define IP6SKB_FAKEJUMBO 512
+#define IP6SKB_MULTIPATH 1024
+#define IP6SKB_MCROUTE 2048
};
#if defined(CONFIG_NET_L3_MASTER_DEV)
@@ -177,17 +197,6 @@ static inline int inet6_sdif(const struct sk_buff *skb)
return 0;
}
-/* can not be used in TCP layer after tcp_v6_fill_cb */
-static inline bool inet6_exact_dif_match(struct net *net, struct sk_buff *skb)
-{
-#if defined(CONFIG_NET_L3_MASTER_DEV)
- if (!net->ipv4.sysctl_tcp_l3mdev_accept &&
- skb && ipv6_l3mdev_skb(IP6CB(skb)->flags))
- return true;
-#endif
- return false;
-}
-
struct tcp6_request_sock {
struct tcp_request_sock tcp6rsk_tcp;
};
@@ -200,56 +209,34 @@ struct inet6_cork {
struct ipv6_txoptions *opt;
u8 hop_limit;
u8 tclass;
+ u8 dontfrag:1;
};
-/**
- * struct ipv6_pinfo - ipv6 private area
- *
- * In the struct sock hierarchy (tcp6_sock, upd6_sock, etc)
- * this _must_ be the last member, so that inet6_sk_generic
- * is able to calculate its offset from the base struct sock
- * by using the struct proto->slab_obj_size member. -acme
- */
+/* struct ipv6_pinfo - ipv6 private area */
struct ipv6_pinfo {
+ /* Used in tx path (inet6_csk_route_socket(), ip6_xmit()) */
struct in6_addr saddr;
- struct in6_pktinfo sticky_pktinfo;
- const struct in6_addr *daddr_cache;
+ __be32 flow_label;
+ u32 dst_cookie;
+ struct ipv6_txoptions __rcu *opt;
+ s16 hop_limit;
+ u8 pmtudisc;
+ u8 tclass;
#ifdef CONFIG_IPV6_SUBTREES
- const struct in6_addr *saddr_cache;
+ bool saddr_cache;
#endif
+ bool daddr_cache;
- __be32 flow_label;
- __u32 frag_size;
-
- /*
- * Packed in 16bits.
- * Omit one shift by by putting the signed field at MSB.
- */
-#if defined(__BIG_ENDIAN_BITFIELD)
- __s16 hop_limit:9;
- __u16 __unused_1:7;
-#else
- __u16 __unused_1:7;
- __s16 hop_limit:9;
-#endif
+ u8 mcast_hops;
+ u32 frag_size;
-#if defined(__BIG_ENDIAN_BITFIELD)
- /* Packed in 16bits. */
- __s16 mcast_hops:9;
- __u16 __unused_2:6,
- mc_loop:1;
-#else
- __u16 mc_loop:1,
- __unused_2:6;
- __s16 mcast_hops:9;
-#endif
int ucast_oif;
int mcast_oif;
/* pktoption flags */
union {
struct {
- __u16 srcrt:1,
+ u16 srcrt:1,
osrcrt:1,
rxinfo:1,
rxoinfo:1,
@@ -266,41 +253,38 @@ struct ipv6_pinfo {
recvfragsize:1;
/* 1 bits hole */
} bits;
- __u16 all;
+ u16 all;
} rxopt;
/* sockopt flags */
- __u16 recverr:1,
- sndflow:1,
- repflow:1,
- pmtudisc:3,
- padding:1, /* 1 bit hole */
- srcprefs:3, /* 001: prefer temporary address
+ u8 srcprefs; /* 001: prefer temporary address
* 010: prefer public address
* 100: prefer care-of address
*/
- dontfrag:1,
- autoflowlabel:1,
- autoflowlabel_set:1,
- mc_all:1,
- rtalert_isolate:1;
- __u8 min_hopcount;
- __u8 tclass;
+ u8 min_hopcount;
__be32 rcv_flowinfo;
+ struct in6_pktinfo sticky_pktinfo;
- __u32 dst_cookie;
- __u32 rx_dst_cookie;
-
- struct ipv6_mc_socklist __rcu *ipv6_mc_list;
- struct ipv6_ac_socklist *ipv6_ac_list;
- struct ipv6_fl_socklist __rcu *ipv6_fl_list;
-
- struct ipv6_txoptions __rcu *opt;
struct sk_buff *pktoptions;
struct sk_buff *rxpmtu;
struct inet6_cork cork;
+
+ struct ipv6_mc_socklist __rcu *ipv6_mc_list;
+ struct ipv6_ac_socklist *ipv6_ac_list;
};
+/* We currently use available bits from inet_sk(sk)->inet_flags,
+ * this could change in the future.
+ */
+#define inet6_test_bit(nr, sk) \
+ test_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet6_set_bit(nr, sk) \
+ set_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet6_clear_bit(nr, sk) \
+ clear_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags)
+#define inet6_assign_bit(nr, sk, val) \
+ assign_bit(INET_FLAGS_##nr, &inet_sk(sk)->inet_flags, val)
+
/* WARNING: don't change the layout of the members in {raw,udp,tcp}6_sock! */
struct raw6_sock {
/* inet_sock has to be the first member of raw6_sock */
@@ -309,19 +293,19 @@ struct raw6_sock {
__u32 offset; /* checksum offset */
struct icmp6_filter filter;
__u32 ip6mr_table;
- /* ipv6_pinfo has to be the last member of raw6_sock, see inet6_sk_generic */
+ struct numa_drop_counters drop_counters;
struct ipv6_pinfo inet6;
};
struct udp6_sock {
struct udp_sock udp;
- /* ipv6_pinfo has to be the last member of udp6_sock, see inet6_sk_generic */
+
struct ipv6_pinfo inet6;
};
struct tcp6_sock {
struct tcp_sock tcp;
- /* ipv6_pinfo has to be the last member of tcp6_sock, see inet6_sk_generic */
+
struct ipv6_pinfo inet6;
};
@@ -339,24 +323,9 @@ static inline struct ipv6_pinfo *inet6_sk(const struct sock *__sk)
return sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL;
}
-static inline struct raw6_sock *raw6_sk(const struct sock *sk)
-{
- return (struct raw6_sock *)sk;
-}
-
-static inline void inet_sk_copy_descendant(struct sock *sk_to,
- const struct sock *sk_from)
-{
- int ancestor_size = sizeof(struct inet_sock);
-
- if (sk_from->sk_family == PF_INET6)
- ancestor_size += sizeof(struct ipv6_pinfo);
+#define raw6_sk(ptr) container_of_const(ptr, struct raw6_sock, inet.sk)
- __inet_sk_copy_descendant(sk_to, sk_from, ancestor_size);
-}
-
-#define __ipv6_only_sock(sk) (sk->sk_ipv6only)
-#define ipv6_only_sock(sk) (__ipv6_only_sock(sk))
+#define ipv6_only_sock(sk) (sk->sk_ipv6only)
#define ipv6_sk_rxinfo(sk) ((sk)->sk_family == PF_INET6 && \
inet6_sk(sk)->rxopt.bits.rxinfo)
@@ -373,7 +342,6 @@ static inline int inet_v6_ipv6only(const struct sock *sk)
return ipv6_only_sock(sk);
}
#else
-#define __ipv6_only_sock(sk) 0
#define ipv6_only_sock(sk) 0
#define ipv6_sk_rxinfo(sk) 0
@@ -387,19 +355,12 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
return NULL;
}
-static inline struct inet6_request_sock *
- inet6_rsk(const struct request_sock *rsk)
-{
- return NULL;
-}
-
static inline struct raw6_sock *raw6_sk(const struct sock *sk)
{
return NULL;
}
#define inet6_rcv_saddr(__sk) NULL
-#define tcp_twsk_ipv6only(__sk) 0
#define inet_v6_ipv6only(__sk) 0
#endif /* IS_ENABLED(CONFIG_IPV6) */
#endif /* _IPV6_H */
generated by cgit (git 2.34.1) at 2025-12-25 12:54:40 +0000