Linux tsuru-no-tsurugi 5.15.0-186-generic #196-Ubuntu SMP Sat Jun 20 16:09:34 UTC 2026 x86_64
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9p
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drwxr-xr-x
2026-06-27 06:50
bluetooth
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2026-06-27 06:50
caif
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drwxr-xr-x
2026-06-27 06:50
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netfilter
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2026-06-27 06:50
netns
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nfc
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phonet
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drwxr-xr-x
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tc_act
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6lowpan.h
10.03
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Space.h
737
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act_api.h
8.44
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addrconf.h
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af_ieee802154.h
1.19
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af_rxrpc.h
2.73
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af_unix.h
3.3
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af_vsock.h
7.41
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ah.h
382
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arp.h
2.09
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atmclip.h
1.48
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ax25.h
15.08
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ax88796.h
1.41
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bareudp.h
572
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bond_3ad.h
9.48
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bond_alb.h
6.1
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bond_options.h
3.79
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bonding.h
19.79
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bpf_sk_storage.h
1.74
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busy_poll.h
3.87
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2026-06-20 00:54
calipso.h
1.55
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cfg80211-wext.h
1.81
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cfg80211.h
294.25
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cfg802154.h
10.53
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checksum.h
4.75
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2026-06-20 00:54
cipso_ipv4.h
7.37
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cls_cgroup.h
2.04
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2026-06-20 00:54
codel.h
5.65
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codel_impl.h
7.98
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codel_qdisc.h
2.9
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compat.h
2.53
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datalink.h
619
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dcbevent.h
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dcbnl.h
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devlink.h
62.1
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dsa.h
35.38
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dsfield.h
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dst.h
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dst_cache.h
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dst_metadata.h
5.39
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dst_ops.h
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erspan.h
8.96
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esp.h
1.16
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espintcp.h
966
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ethoc.h
391
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failover.h
1.15
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fib_notifier.h
1.35
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fib_rules.h
6.3
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firewire.h
636
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flow.h
5
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flow_dissector.h
10.27
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flow_offload.h
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fou.h
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fq.h
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fq_impl.h
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garp.h
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gen_stats.h
2.82
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genetlink.h
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geneve.h
1.85
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gre.h
3.29
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gro.h
783
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gro_cells.h
443
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gtp.h
633
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gue.h
3.24
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hwbm.h
969
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icmp.h
1.87
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ieee80211_radiotap.h
13.2
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ieee802154_netdev.h
9.86
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2026-06-20 00:54
if_inet6.h
6.54
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ife.h
1.03
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ila.h
291
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inet6_connection_sock.h
765
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inet6_hashtables.h
4.16
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2026-06-20 00:54
inet_common.h
2.55
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inet_connection_sock.h
11.25
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2026-06-20 00:54
inet_ecn.h
7.45
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inet_frag.h
4.93
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2026-06-20 00:54
inet_hashtables.h
12.24
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inet_sock.h
9.76
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inet_timewait_sock.h
3.65
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2021-11-01 05:53
inetpeer.h
3.29
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ioam6.h
1.22
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2026-06-20 00:54
ip.h
22.23
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ip6_checksum.h
2.71
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ip6_fib.h
15.9
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2026-06-20 00:54
ip6_route.h
9.99
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ip6_tunnel.h
4.98
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2026-06-20 00:54
ip_fib.h
15.96
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ip_tunnels.h
15.58
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ip_vs.h
49.4
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ipcomp.h
659
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ipconfig.h
811
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ipv6.h
35.33
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2026-06-20 00:54
ipv6_frag.h
3.28
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ipv6_stubs.h
3.4
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2026-06-20 00:54
iw_handler.h
20.91
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2021-11-01 05:53
kcm.h
4.84
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2026-06-20 00:54
l3mdev.h
7.03
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lag.h
409
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lapb.h
4.82
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2026-06-20 00:54
lib80211.h
3.92
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llc.h
4.41
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llc_c_ac.h
9.31
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llc_c_ev.h
10.68
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llc_c_st.h
1.72
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llc_conn.h
4.06
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llc_if.h
2.16
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llc_pdu.h
14.35
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llc_s_ac.h
1.55
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llc_s_ev.h
2.2
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llc_s_st.h
947
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llc_sap.h
1.08
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lwtunnel.h
6.65
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2026-06-20 00:54
mac80211.h
267.55
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mac802154.h
14.88
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2021-11-01 05:53
macsec.h
6.92
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2026-06-20 00:54
mctp.h
6.01
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mctpdevice.h
841
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mip6.h
1016
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mld.h
2.85
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mpls.h
943
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mpls_iptunnel.h
429
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mptcp.h
6.62
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mrp.h
3.05
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ncsi.h
1.92
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ndisc.h
14.79
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neighbour.h
15.72
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net_failover.h
1023
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net_namespace.h
12.5
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net_ratelimit.h
220
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netevent.h
1.02
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netlabel.h
20.19
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netlink.h
60.21
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netprio_cgroup.h
1.02
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netrom.h
7.71
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nexthop.h
12.27
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nl802154.h
12.09
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2026-06-20 00:54
nsh.h
12.31
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p8022.h
447
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page_pool.h
8.44
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pie.h
3.6
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2021-11-01 05:53
ping.h
2.9
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pkt_cls.h
23.86
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pkt_sched.h
5.9
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2026-06-20 00:54
pptp.h
557
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protocol.h
3.81
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psample.h
1.06
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psnap.h
351
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raw.h
2.09
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rawv6.h
854
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red.h
11.38
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regulatory.h
10.65
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request_sock.h
6.5
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2026-06-20 00:54
rose.h
7.62
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route.h
11.31
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rpl.h
839
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rsi_91x.h
1.67
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rtnetlink.h
7.46
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rtnh.h
859
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sch_generic.h
33.91
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scm.h
3.79
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secure_seq.h
855
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seg6.h
2.18
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seg6_hmac.h
1.44
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seg6_local.h
644
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selftests.h
582
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slhc_vj.h
6.67
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smc.h
2.45
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snmp.h
5.14
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sock.h
84.33
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sock_reuseport.h
1.83
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stp.h
383
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strparser.h
4.15
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switchdev.h
14.27
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tcp.h
73.48
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tcp_states.h
1.2
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timewait_sock.h
925
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tipc.h
2.35
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tls.h
20.96
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tls_toe.h
2.94
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transp_v6.h
1.95
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tso.h
566
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tun_proto.h
988
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udp.h
16.64
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udp_tunnel.h
11.92
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udplite.h
3.67
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vsock_addr.h
662
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vxlan.h
14.09
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wext.h
1.47
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2021-11-01 05:53
x25.h
9.49
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x25device.h
387
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xdp.h
8.62
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xdp_priv.h
446
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xdp_sock.h
2.04
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xdp_sock_drv.h
5.48
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2026-06-20 00:54
xfrm.h
54.98
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2026-06-20 00:54
xsk_buff_pool.h
5.02
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2026-06-20 00:54
Save
Rename
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * INET An implementation of the TCP/IP protocol suite for the LINUX * operating system. INET is implemented using the BSD Socket * interface as the means of communication with the user level. * * Definitions for inet_sock * * Authors: Many, reorganised here by * Arnaldo Carvalho de Melo <acme@mandriva.com> */ #ifndef _INET_SOCK_H #define _INET_SOCK_H #include <linux/bitops.h> #include <linux/string.h> #include <linux/types.h> #include <linux/jhash.h> #include <linux/netdevice.h> #include <net/flow.h> #include <net/sock.h> #include <net/request_sock.h> #include <net/netns/hash.h> #include <net/tcp_states.h> #include <net/l3mdev.h> /** struct ip_options - IP Options * * @faddr - Saved first hop address * @nexthop - Saved nexthop address in LSRR and SSRR * @is_strictroute - Strict source route * @srr_is_hit - Packet destination addr was our one * @is_changed - IP checksum more not valid * @rr_needaddr - Need to record addr of outgoing dev * @ts_needtime - Need to record timestamp * @ts_needaddr - Need to record addr of outgoing dev */ struct ip_options { __be32 faddr; __be32 nexthop; unsigned char optlen; unsigned char srr; unsigned char rr; unsigned char ts; unsigned char is_strictroute:1, srr_is_hit:1, is_changed:1, rr_needaddr:1, ts_needtime:1, ts_needaddr:1; unsigned char router_alert; unsigned char cipso; unsigned char __pad2; unsigned char __data[]; }; struct ip_options_rcu { struct rcu_head rcu; struct ip_options opt; }; struct ip_options_data { struct ip_options_rcu opt; char data[40]; }; struct inet_request_sock { struct request_sock req; #define ir_loc_addr req.__req_common.skc_rcv_saddr #define ir_rmt_addr req.__req_common.skc_daddr #define ir_num req.__req_common.skc_num #define ir_rmt_port req.__req_common.skc_dport #define ir_v6_rmt_addr req.__req_common.skc_v6_daddr #define ir_v6_loc_addr req.__req_common.skc_v6_rcv_saddr #define ir_iif req.__req_common.skc_bound_dev_if #define ir_cookie req.__req_common.skc_cookie #define ireq_net req.__req_common.skc_net #define ireq_state req.__req_common.skc_state #define ireq_family req.__req_common.skc_family u16 snd_wscale : 4, rcv_wscale : 4, tstamp_ok : 1, sack_ok : 1, wscale_ok : 1, ecn_ok : 1, acked : 1, no_srccheck: 1, smc_ok : 1; u32 ir_mark; union { struct ip_options_rcu __rcu *ireq_opt; #if IS_ENABLED(CONFIG_IPV6) struct { struct ipv6_txoptions *ipv6_opt; struct sk_buff *pktopts; }; #endif }; }; static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk) { return (struct inet_request_sock *)sk; } static inline u32 inet_request_mark(const struct sock *sk, struct sk_buff *skb) { if (!sk->sk_mark && READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_fwmark_accept)) return skb->mark; return sk->sk_mark; } static inline int inet_request_bound_dev_if(const struct sock *sk, struct sk_buff *skb) { int bound_dev_if = READ_ONCE(sk->sk_bound_dev_if); #ifdef CONFIG_NET_L3_MASTER_DEV struct net *net = sock_net(sk); if (!bound_dev_if && READ_ONCE(net->ipv4.sysctl_tcp_l3mdev_accept)) return l3mdev_master_ifindex_by_index(net, skb->skb_iif); #endif return bound_dev_if; } static inline int inet_sk_bound_l3mdev(const struct sock *sk) { #ifdef CONFIG_NET_L3_MASTER_DEV struct net *net = sock_net(sk); if (!READ_ONCE(net->ipv4.sysctl_tcp_l3mdev_accept)) return l3mdev_master_ifindex_by_index(net, sk->sk_bound_dev_if); #endif return 0; } static inline bool inet_bound_dev_eq(bool l3mdev_accept, int bound_dev_if, int dif, int sdif) { if (!bound_dev_if) return !sdif || l3mdev_accept; return bound_dev_if == dif || bound_dev_if == sdif; } static inline bool inet_sk_bound_dev_eq(struct net *net, int bound_dev_if, int dif, int sdif) { #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV) return inet_bound_dev_eq(!!READ_ONCE(net->ipv4.sysctl_tcp_l3mdev_accept), bound_dev_if, dif, sdif); #else return inet_bound_dev_eq(true, bound_dev_if, dif, sdif); #endif } struct inet_cork { unsigned int flags; __be32 addr; struct ip_options *opt; unsigned int fragsize; int length; /* Total length of all frames */ struct dst_entry *dst; u8 tx_flags; __u8 ttl; __s16 tos; char priority; __u16 gso_size; u64 transmit_time; u32 mark; }; struct inet_cork_full { struct inet_cork base; struct flowi fl; }; struct ip_mc_socklist; struct ipv6_pinfo; struct rtable; /** struct inet_sock - representation of INET sockets * * @sk - ancestor class * @pinet6 - pointer to IPv6 control block * @inet_daddr - Foreign IPv4 addr * @inet_rcv_saddr - Bound local IPv4 addr * @inet_dport - Destination port * @inet_num - Local port * @inet_saddr - Sending source * @uc_ttl - Unicast TTL * @inet_sport - Source port * @inet_id - ID counter for DF pkts * @tos - TOS * @mc_ttl - Multicasting TTL * @is_icsk - is this an inet_connection_sock? * @uc_index - Unicast outgoing device index * @mc_index - Multicast device index * @mc_list - Group array * @cork - info to build ip hdr on each ip frag while socket is corked */ struct inet_sock { /* sk and pinet6 has to be the first two members of inet_sock */ struct sock sk; #if IS_ENABLED(CONFIG_IPV6) struct ipv6_pinfo *pinet6; #endif /* Socket demultiplex comparisons on incoming packets. */ #define inet_daddr sk.__sk_common.skc_daddr #define inet_rcv_saddr sk.__sk_common.skc_rcv_saddr #define inet_dport sk.__sk_common.skc_dport #define inet_num sk.__sk_common.skc_num __be32 inet_saddr; __s16 uc_ttl; __u16 cmsg_flags; struct ip_options_rcu __rcu *inet_opt; __be16 inet_sport; __u16 inet_id; __u8 tos; __u8 min_ttl; __u8 mc_ttl; __u8 pmtudisc; __u8 recverr:1, is_icsk:1, freebind:1, hdrincl:1, mc_loop:1, transparent:1, mc_all:1, nodefrag:1; __u8 bind_address_no_port:1, recverr_rfc4884:1, defer_connect:1; /* Indicates that fastopen_connect is set * and cookie exists so we defer connect * until first data frame is written */ __u8 rcv_tos; __u8 convert_csum; int uc_index; int mc_index; __be32 mc_addr; struct ip_mc_socklist __rcu *mc_list; struct inet_cork_full cork; }; #define IPCORK_OPT 1 /* ip-options has been held in ipcork.opt */ #define IPCORK_ALLFRAG 2 /* always fragment (for ipv6 for now) */ /* cmsg flags for inet */ #define IP_CMSG_PKTINFO BIT(0) #define IP_CMSG_TTL BIT(1) #define IP_CMSG_TOS BIT(2) #define IP_CMSG_RECVOPTS BIT(3) #define IP_CMSG_RETOPTS BIT(4) #define IP_CMSG_PASSSEC BIT(5) #define IP_CMSG_ORIGDSTADDR BIT(6) #define IP_CMSG_CHECKSUM BIT(7) #define IP_CMSG_RECVFRAGSIZE BIT(8) static inline bool sk_is_inet(struct sock *sk) { return sk->sk_family == AF_INET || sk->sk_family == AF_INET6; } /** * sk_to_full_sk - Access to a full socket * @sk: pointer to a socket * * SYNACK messages might be attached to request sockets. * Some places want to reach the listener in this case. */ static inline struct sock *sk_to_full_sk(struct sock *sk) { #ifdef CONFIG_INET if (sk && sk->sk_state == TCP_NEW_SYN_RECV) sk = inet_reqsk(sk)->rsk_listener; #endif return sk; } /* sk_to_full_sk() variant with a const argument */ static inline const struct sock *sk_const_to_full_sk(const struct sock *sk) { #ifdef CONFIG_INET if (sk && sk->sk_state == TCP_NEW_SYN_RECV) sk = ((const struct request_sock *)sk)->rsk_listener; #endif return sk; } static inline struct sock *skb_to_full_sk(const struct sk_buff *skb) { return sk_to_full_sk(skb->sk); } static inline struct inet_sock *inet_sk(const struct sock *sk) { return (struct inet_sock *)sk; } static inline void __inet_sk_copy_descendant(struct sock *sk_to, const struct sock *sk_from, const int ancestor_size) { memcpy(inet_sk(sk_to) + 1, inet_sk(sk_from) + 1, sk_from->sk_prot->obj_size - ancestor_size); } int inet_sk_rebuild_header(struct sock *sk); /** * inet_sk_state_load - read sk->sk_state for lockless contexts * @sk: socket pointer * * Paired with inet_sk_state_store(). Used in places we don't hold socket lock: * tcp_diag_get_info(), tcp_get_info(), tcp_poll(), get_tcp4_sock() ... */ static inline int inet_sk_state_load(const struct sock *sk) { /* state change might impact lockless readers. */ return smp_load_acquire(&sk->sk_state); } /** * inet_sk_state_store - update sk->sk_state * @sk: socket pointer * @newstate: new state * * Paired with inet_sk_state_load(). Should be used in contexts where * state change might impact lockless readers. */ void inet_sk_state_store(struct sock *sk, int newstate); void inet_sk_set_state(struct sock *sk, int state); static inline unsigned int __inet_ehashfn(const __be32 laddr, const __u16 lport, const __be32 faddr, const __be16 fport, u32 initval) { return jhash_3words((__force __u32) laddr, (__force __u32) faddr, ((__u32) lport) << 16 | (__force __u32)fport, initval); } struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener, bool attach_listener); static inline __u8 inet_sk_flowi_flags(const struct sock *sk) { __u8 flags = 0; if (inet_sk(sk)->transparent || inet_sk(sk)->hdrincl) flags |= FLOWI_FLAG_ANYSRC; return flags; } static inline void inet_inc_convert_csum(struct sock *sk) { inet_sk(sk)->convert_csum++; } static inline void inet_dec_convert_csum(struct sock *sk) { if (inet_sk(sk)->convert_csum > 0) inet_sk(sk)->convert_csum--; } static inline bool inet_get_convert_csum(struct sock *sk) { return !!inet_sk(sk)->convert_csum; } static inline bool inet_can_nonlocal_bind(struct net *net, struct inet_sock *inet) { return READ_ONCE(net->ipv4.sysctl_ip_nonlocal_bind) || inet->freebind || inet->transparent; } #endif /* _INET_SOCK_H */