^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * INET An implementation of the TCP/IP protocol suite for the LINUX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * operating system. INET is implemented using the BSD Socket
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * interface as the means of communication with the user level.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Authors: Lotsa people, from code originally in tcp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _INET_HASHTABLES_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _INET_HASHTABLES_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/ipv6.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/socket.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/wait.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <net/inet_connection_sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <net/inet_sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <net/sock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <net/route.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <net/tcp_states.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <net/netns/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/refcount.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #include <asm/byteorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* This is for all connections with a full identity, no wildcards.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * The 'e' prefix stands for Establish, but we really put all sockets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * but LISTEN ones.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) struct inet_ehash_bucket {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct hlist_nulls_head chain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* There are a few simple rules, which allow for local port reuse by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * an application. In essence:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * 1) Sockets bound to different interfaces may share a local port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * Failing that, goto test 2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * 2) If all sockets have sk->sk_reuse set, and none of them are in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * TCP_LISTEN state, the port may be shared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * Failing that, goto test 3.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * 3) If all sockets are bound to a specific inet_sk(sk)->rcv_saddr local
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * address, and none of them are the same, the port may be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * shared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * Failing this, the port cannot be shared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * The interesting point, is test #2. This is what an FTP server does
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * all day. To optimize this case we use a specific flag bit defined
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * below. As we add sockets to a bind bucket list, we perform a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * check of: (newsk->sk_reuse && (newsk->sk_state != TCP_LISTEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * As long as all sockets added to a bind bucket pass this test,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * the flag bit will be set.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * The resulting situation is that tcp_v[46]_verify_bind() can just check
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * for this flag bit, if it is set and the socket trying to bind has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * sk->sk_reuse set, we don't even have to walk the owners list at all,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * we return that it is ok to bind this socket to the requested local port.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * Sounds like a lot of work, but it is worth it. In a more naive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * implementation (ie. current FreeBSD etc.) the entire list of ports
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * must be walked for each data port opened by an ftp server. Needless
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * to say, this does not scale at all. With a couple thousand FTP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * users logged onto your box, isn't it nice to know that new data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * ports are created in O(1) time? I thought so. ;-) -DaveM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define FASTREUSEPORT_ANY 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define FASTREUSEPORT_STRICT 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct inet_bind_bucket {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) possible_net_t ib_net;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) int l3mdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) unsigned short port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) signed char fastreuse;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) signed char fastreuseport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) kuid_t fastuid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) struct in6_addr fast_v6_rcv_saddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) __be32 fast_rcv_saddr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) unsigned short fast_sk_family;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) bool fast_ipv6_only;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct hlist_node node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct hlist_head owners;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static inline struct net *ib_net(struct inet_bind_bucket *ib)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return read_pnet(&ib->ib_net);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define inet_bind_bucket_for_each(tb, head) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) hlist_for_each_entry(tb, head, node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct inet_bind_hashbucket {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct hlist_head chain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* Sockets can be hashed in established or listening table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * We must use different 'nulls' end-of-chain value for all hash buckets :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * A socket might transition from ESTABLISH to LISTEN state without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * RCU grace period. A lookup in ehash table needs to handle this case.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #define LISTENING_NULLS_BASE (1U << 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) struct inet_listen_hashbucket {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) unsigned int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) struct hlist_head head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct hlist_nulls_head nulls_head;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) /* This is for listening sockets, thus all sockets which possess wildcards. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define INET_LHTABLE_SIZE 32 /* Yes, really, this is all you need. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct inet_hashinfo {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) /* This is for sockets with full identity only. Sockets here will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) * always be without wildcards and will have the following invariant:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) * TCP_ESTABLISHED <= sk->sk_state < TCP_CLOSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) struct inet_ehash_bucket *ehash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) spinlock_t *ehash_locks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) unsigned int ehash_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) unsigned int ehash_locks_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) /* Ok, let's try this, I give up, we do need a local binding
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) * TCP hash as well as the others for fast bind/connect.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) struct kmem_cache *bind_bucket_cachep;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct inet_bind_hashbucket *bhash;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) unsigned int bhash_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) /* The 2nd listener table hashed by local port and address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) unsigned int lhash2_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) struct inet_listen_hashbucket *lhash2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) /* All the above members are written once at bootup and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) * never written again _or_ are predominantly read-access.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * Now align to a new cache line as all the following members
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * might be often dirty.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) /* All sockets in TCP_LISTEN state will be in listening_hash.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) * This is the only table where wildcard'd TCP sockets can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * exist. listening_hash is only hashed by local port number.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * If lhash2 is initialized, the same socket will also be hashed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * to lhash2 by port and address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct inet_listen_hashbucket listening_hash[INET_LHTABLE_SIZE]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) ____cacheline_aligned_in_smp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) #define inet_lhash2_for_each_icsk_rcu(__icsk, list) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) hlist_for_each_entry_rcu(__icsk, list, icsk_listen_portaddr_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) static inline struct inet_listen_hashbucket *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) inet_lhash2_bucket(struct inet_hashinfo *h, u32 hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) return &h->lhash2[hash & h->lhash2_mask];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static inline struct inet_ehash_bucket *inet_ehash_bucket(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned int hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) return &hashinfo->ehash[hash & hashinfo->ehash_mask];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static inline spinlock_t *inet_ehash_lockp(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) unsigned int hash)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return &hashinfo->ehash_locks[hash & hashinfo->ehash_locks_mask];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) int inet_ehash_locks_alloc(struct inet_hashinfo *hashinfo);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) static inline void inet_hashinfo2_free_mod(struct inet_hashinfo *h)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) kfree(h->lhash2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) h->lhash2 = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static inline void inet_ehash_locks_free(struct inet_hashinfo *hashinfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) kvfree(hashinfo->ehash_locks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) hashinfo->ehash_locks = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) static inline bool inet_sk_bound_dev_eq(struct net *net, int bound_dev_if,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) int dif, int sdif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return inet_bound_dev_eq(!!net->ipv4.sysctl_tcp_l3mdev_accept,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) bound_dev_if, dif, sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) struct inet_bind_bucket *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) inet_bind_bucket_create(struct kmem_cache *cachep, struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) struct inet_bind_hashbucket *head,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) const unsigned short snum, int l3mdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) void inet_bind_bucket_destroy(struct kmem_cache *cachep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct inet_bind_bucket *tb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static inline u32 inet_bhashfn(const struct net *net, const __u16 lport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) const u32 bhash_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) return (lport + net_hash_mix(net)) & (bhash_size - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) const unsigned short snum);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) /* These can have wildcards, don't try too hard. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static inline u32 inet_lhashfn(const struct net *net, const unsigned short num)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return (num + net_hash_mix(net)) & (INET_LHTABLE_SIZE - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) static inline int inet_sk_listen_hashfn(const struct sock *sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return inet_lhashfn(sock_net(sk), inet_sk(sk)->inet_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) /* Caller must disable local BH processing. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) int __inet_inherit_port(const struct sock *sk, struct sock *child);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) void inet_put_port(struct sock *sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) void inet_hashinfo_init(struct inet_hashinfo *h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) void inet_hashinfo2_init(struct inet_hashinfo *h, const char *name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) unsigned long numentries, int scale,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) unsigned long low_limit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) unsigned long high_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) int inet_hashinfo2_init_mod(struct inet_hashinfo *h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) bool inet_ehash_insert(struct sock *sk, struct sock *osk, bool *found_dup_sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) bool inet_ehash_nolisten(struct sock *sk, struct sock *osk,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) bool *found_dup_sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) int __inet_hash(struct sock *sk, struct sock *osk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) int inet_hash(struct sock *sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) void inet_unhash(struct sock *sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct sock *__inet_lookup_listener(struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct sk_buff *skb, int doff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) const __be32 saddr, const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) const __be32 daddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) const unsigned short hnum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) const int dif, const int sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) static inline struct sock *inet_lookup_listener(struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) struct sk_buff *skb, int doff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) __be32 saddr, __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) __be32 daddr, __be16 dport, int dif, int sdif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return __inet_lookup_listener(net, hashinfo, skb, doff, saddr, sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) daddr, ntohs(dport), dif, sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) /* Socket demux engine toys. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) /* What happens here is ugly; there's a pair of adjacent fields in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) struct inet_sock; __be16 dport followed by __u16 num. We want to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) search by pair, so we combine the keys into a single 32bit value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) and compare with 32bit value read from &...->dport. Let's at least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) make sure that it's not mixed with anything else...
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) On 64bit targets we combine comparisons with pair of adjacent __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) fields in the same way.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) #ifdef __BIG_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) #define INET_COMBINED_PORTS(__sport, __dport) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) ((__force __portpair)(((__force __u32)(__be16)(__sport) << 16) | (__u32)(__dport)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) #else /* __LITTLE_ENDIAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) #define INET_COMBINED_PORTS(__sport, __dport) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) ((__force __portpair)(((__u32)(__dport) << 16) | (__force __u32)(__be16)(__sport)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) #if (BITS_PER_LONG == 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) #ifdef __BIG_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) const __addrpair __name = (__force __addrpair) ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) (((__force __u64)(__be32)(__saddr)) << 32) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) ((__force __u64)(__be32)(__daddr)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) #else /* __LITTLE_ENDIAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) const __addrpair __name = (__force __addrpair) ( \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) (((__force __u64)(__be32)(__daddr)) << 32) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ((__force __u64)(__be32)(__saddr)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) #endif /* __BIG_ENDIAN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif, __sdif) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) (((__sk)->sk_portpair == (__ports)) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) ((__sk)->sk_addrpair == (__cookie)) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) (((__sk)->sk_bound_dev_if == (__dif)) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) ((__sk)->sk_bound_dev_if == (__sdif))) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) net_eq(sock_net(__sk), (__net)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) #else /* 32-bit arch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) #define INET_ADDR_COOKIE(__name, __saddr, __daddr) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) const int __name __deprecated __attribute__((unused))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif, __sdif) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) (((__sk)->sk_portpair == (__ports)) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ((__sk)->sk_daddr == (__saddr)) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) ((__sk)->sk_rcv_saddr == (__daddr)) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) (((__sk)->sk_bound_dev_if == (__dif)) || \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) ((__sk)->sk_bound_dev_if == (__sdif))) && \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) net_eq(sock_net(__sk), (__net)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) #endif /* 64-bit arch */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) /* Sockets in TCP_CLOSE state are _always_ taken out of the hash, so we need
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) * not check it for lookups anymore, thanks Alexey. -DaveM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) struct sock *__inet_lookup_established(struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) const __be32 saddr, const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) const __be32 daddr, const u16 hnum,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) const int dif, const int sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) static inline struct sock *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) inet_lookup_established(struct net *net, struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) const __be32 saddr, const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) const __be32 daddr, const __be16 dport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) const int dif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) return __inet_lookup_established(net, hashinfo, saddr, sport, daddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) ntohs(dport), dif, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) static inline struct sock *__inet_lookup(struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) struct sk_buff *skb, int doff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) const __be32 saddr, const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) const __be32 daddr, const __be16 dport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) const int dif, const int sdif,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) bool *refcounted)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) u16 hnum = ntohs(dport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) sk = __inet_lookup_established(net, hashinfo, saddr, sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) daddr, hnum, dif, sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) *refcounted = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) if (sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) *refcounted = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return __inet_lookup_listener(net, hashinfo, skb, doff, saddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) sport, daddr, hnum, dif, sdif);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) static inline struct sock *inet_lookup(struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) struct sk_buff *skb, int doff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) const __be32 saddr, const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) const __be32 daddr, const __be16 dport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) const int dif)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) struct sock *sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) bool refcounted;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) sk = __inet_lookup(net, hashinfo, skb, doff, saddr, sport, daddr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) dport, dif, 0, &refcounted);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) if (sk && !refcounted && !refcount_inc_not_zero(&sk->sk_refcnt))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) sk = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) return sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) struct sk_buff *skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) int doff,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) const __be16 sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) const __be16 dport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) const int sdif,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) bool *refcounted)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) struct sock *sk = skb_steal_sock(skb, refcounted);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) const struct iphdr *iph = ip_hdr(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (sk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return sk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return __inet_lookup(dev_net(skb_dst(skb)->dev), hashinfo, skb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) doff, iph->saddr, sport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) iph->daddr, dport, inet_iif(skb), sdif,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) refcounted);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) u32 inet6_ehashfn(const struct net *net,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) const struct in6_addr *laddr, const u16 lport,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) const struct in6_addr *faddr, const __be16 fport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static inline void sk_daddr_set(struct sock *sk, __be32 addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) sk->sk_daddr = addr; /* alias of inet_daddr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) ipv6_addr_set_v4mapped(addr, &sk->sk_v6_daddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) static inline void sk_rcv_saddr_set(struct sock *sk, __be32 addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) sk->sk_rcv_saddr = addr; /* alias of inet_rcv_saddr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) #if IS_ENABLED(CONFIG_IPV6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) ipv6_addr_set_v4mapped(addr, &sk->sk_v6_rcv_saddr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) int __inet_hash_connect(struct inet_timewait_death_row *death_row,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) struct sock *sk, u32 port_offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int (*check_established)(struct inet_timewait_death_row *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) struct sock *, __u16,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) struct inet_timewait_sock **));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) int inet_hash_connect(struct inet_timewait_death_row *death_row,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) struct sock *sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) #endif /* _INET_HASHTABLES_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags