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
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
bluetooth
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2026-07-21 06:37
caif
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
iucv
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2026-07-21 06:37
netfilter
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
netns
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
nfc
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
phonet
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
sctp
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
tc_act
[ DIR ]
drwxr-xr-x
2026-07-21 06:37
6lowpan.h
10.03
KB
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2021-11-01 05:53
Space.h
737
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2021-11-01 05:53
act_api.h
8.52
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2026-06-21 00:49
addrconf.h
14.25
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2026-06-21 00:49
af_ieee802154.h
1.19
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2021-11-01 05:53
af_rxrpc.h
2.73
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2021-11-01 05:53
af_unix.h
3.3
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2026-06-21 00:49
af_vsock.h
7.41
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2026-06-21 00:49
ah.h
382
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2021-11-01 05:53
arp.h
2.09
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2026-06-21 00:49
atmclip.h
1.48
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2021-11-01 05:53
ax25.h
15.08
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2026-06-21 00:49
ax88796.h
1.41
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2021-11-01 05:53
bareudp.h
572
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2021-11-01 05:53
bond_3ad.h
9.48
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2026-06-21 00:49
bond_alb.h
6.1
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2026-06-21 00:49
bond_options.h
3.79
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2026-06-21 00:49
bonding.h
19.79
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2026-06-21 00:49
bpf_sk_storage.h
1.74
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2021-11-01 05:53
busy_poll.h
3.87
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2026-06-21 00:49
calipso.h
1.55
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2021-11-01 05:53
cfg80211-wext.h
1.81
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2021-11-01 05:53
cfg80211.h
294.25
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2026-06-21 00:49
cfg802154.h
10.53
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2026-06-21 00:49
checksum.h
4.75
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2026-06-21 00:49
cipso_ipv4.h
7.37
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2021-11-01 05:53
cls_cgroup.h
2.04
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2026-06-21 00:49
codel.h
5.65
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2021-11-01 05:53
codel_impl.h
7.98
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2021-11-01 05:53
codel_qdisc.h
2.9
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2021-11-01 05:53
compat.h
2.53
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2021-11-01 05:53
datalink.h
619
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2021-11-01 05:53
dcbevent.h
742
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2021-11-01 05:53
dcbnl.h
4.22
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2021-11-01 05:53
devlink.h
62.1
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2021-11-01 05:53
dsa.h
35.38
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2026-06-21 00:49
dsfield.h
1.12
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2021-11-01 05:53
dst.h
14.8
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2026-06-21 00:49
dst_cache.h
2.96
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2026-06-21 00:49
dst_metadata.h
5.39
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2026-06-21 00:49
dst_ops.h
2.08
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2026-06-21 00:49
erspan.h
8.96
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2021-11-01 05:53
esp.h
1.16
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2021-11-01 05:53
espintcp.h
966
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2021-11-01 05:53
ethoc.h
391
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2021-11-01 05:53
failover.h
1.15
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2021-11-01 05:53
fib_notifier.h
1.35
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2021-11-01 05:53
fib_rules.h
6.3
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2026-06-21 00:49
firewire.h
636
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2021-11-01 05:53
flow.h
5
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2026-06-21 00:49
flow_dissector.h
10.77
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2026-06-21 00:49
flow_offload.h
15.56
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fou.h
549
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fq.h
2.47
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fq_impl.h
7.89
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2021-11-01 05:53
garp.h
2.62
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2021-11-01 05:53
gen_stats.h
2.82
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2021-11-01 05:53
genetlink.h
13.53
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2026-06-21 00:49
geneve.h
1.85
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2021-11-01 05:53
gre.h
3.29
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2021-11-01 05:53
gro.h
783
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2021-11-01 05:53
gro_cells.h
443
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2021-11-01 05:53
gtp.h
633
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2021-11-01 05:53
gue.h
3.24
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2021-11-01 05:53
hwbm.h
969
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2021-11-01 05:53
icmp.h
1.87
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2021-11-01 05:53
ieee80211_radiotap.h
13.2
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2021-11-01 05:53
ieee802154_netdev.h
9.86
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2026-06-21 00:49
if_inet6.h
6.54
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2026-06-21 00:49
ife.h
1.03
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2021-11-01 05:53
ila.h
291
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2021-11-01 05:53
inet6_connection_sock.h
765
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2021-11-01 05:53
inet6_hashtables.h
4.16
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2026-06-21 00:49
inet_common.h
2.55
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2021-11-01 05:53
inet_connection_sock.h
11.25
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2026-06-21 00:49
inet_ecn.h
7.45
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2021-11-01 05:53
inet_frag.h
4.93
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2026-06-21 00:49
inet_hashtables.h
12.24
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2026-06-21 00:49
inet_sock.h
9.76
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2026-06-21 00:49
inet_timewait_sock.h
3.65
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2021-11-01 05:53
inetpeer.h
3.29
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2021-11-01 05:53
ioam6.h
1.22
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2026-06-21 00:49
ip.h
22.23
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2026-06-21 00:49
ip6_checksum.h
2.71
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2021-11-01 05:53
ip6_fib.h
15.9
KB
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2026-06-21 00:49
ip6_route.h
9.99
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2021-11-01 05:53
ip6_tunnel.h
4.98
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2026-06-21 00:49
ip_fib.h
15.96
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2026-06-21 00:49
ip_tunnels.h
15.58
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2026-06-21 00:49
ip_vs.h
49.4
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2026-06-21 00:49
ipcomp.h
659
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2021-11-01 05:53
ipconfig.h
811
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2021-11-01 05:53
ipv6.h
35.15
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2026-06-21 00:49
ipv6_frag.h
3.28
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2026-06-21 00:49
ipv6_stubs.h
3.4
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2026-06-21 00:49
iw_handler.h
20.91
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2021-11-01 05:53
kcm.h
4.84
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2026-06-21 00:49
l3mdev.h
7.03
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2026-06-21 00:49
lag.h
409
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2021-11-01 05:53
lapb.h
4.82
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2026-06-21 00:49
lib80211.h
3.92
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2021-11-01 05:53
llc.h
4.41
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2026-06-21 00:49
llc_c_ac.h
9.31
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2021-11-01 05:53
llc_c_ev.h
10.68
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2021-11-01 05:53
llc_c_st.h
1.72
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2021-11-01 05:53
llc_conn.h
4.06
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2021-11-01 05:53
llc_if.h
2.16
KB
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2021-11-01 05:53
llc_pdu.h
14.35
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2026-06-21 00:49
llc_s_ac.h
1.55
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2021-11-01 05:53
llc_s_ev.h
2.2
KB
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2021-11-01 05:53
llc_s_st.h
947
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2021-11-01 05:53
llc_sap.h
1.08
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2021-11-01 05:53
lwtunnel.h
6.65
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2026-06-21 00:49
mac80211.h
267.7
KB
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2026-06-21 00:49
mac802154.h
14.88
KB
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2021-11-01 05:53
macsec.h
6.92
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2026-06-21 00:49
mctp.h
6.01
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2026-06-21 00:49
mctpdevice.h
841
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2026-06-21 00:49
mip6.h
1016
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2021-11-01 05:53
mld.h
2.85
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2021-11-01 05:53
mpls.h
943
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2021-11-01 05:53
mpls_iptunnel.h
429
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2021-11-01 05:53
mptcp.h
6.62
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2026-06-21 00:49
mrp.h
3.05
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2026-06-21 00:49
ncsi.h
1.92
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2021-11-01 05:53
ndisc.h
14.79
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2026-06-21 00:49
neighbour.h
15.72
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2026-06-21 00:49
net_failover.h
1023
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2021-11-01 05:53
net_namespace.h
12.5
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2026-06-21 00:49
net_ratelimit.h
220
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2021-11-01 05:53
netevent.h
1.02
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2021-11-01 05:53
netlabel.h
20.19
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2026-06-21 00:49
netlink.h
60.44
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2026-06-21 00:49
netprio_cgroup.h
1.02
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2021-11-01 05:53
netrom.h
7.71
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2021-11-01 05:53
nexthop.h
12.27
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2021-11-01 05:53
nl802154.h
12.09
KB
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2026-06-21 00:49
nsh.h
12.31
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2021-11-01 05:53
p8022.h
447
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2021-11-01 05:53
page_pool.h
8.44
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2026-06-21 00:49
pie.h
3.61
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2026-06-21 00:49
ping.h
2.9
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2021-11-01 05:53
pkt_cls.h
23.86
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2021-11-01 05:53
pkt_sched.h
5.9
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2026-06-21 00:49
pptp.h
557
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2021-11-01 05:53
protocol.h
3.81
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2026-06-21 00:49
psample.h
1.06
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2021-11-01 05:53
psnap.h
351
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2021-11-01 05:53
raw.h
2.09
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2026-06-21 00:49
rawv6.h
854
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2021-11-01 05:53
red.h
11.33
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2026-06-21 00:49
regulatory.h
10.65
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2021-11-01 05:53
request_sock.h
6.5
KB
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2026-06-21 00:49
rose.h
7.62
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2021-11-01 05:53
route.h
11.09
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2026-06-21 00:49
rpl.h
839
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2026-06-21 00:49
rsi_91x.h
1.67
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2021-11-01 05:53
rtnetlink.h
7.46
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2026-06-21 00:49
rtnh.h
859
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2021-11-01 05:53
sch_generic.h
34.17
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2026-06-21 00:49
scm.h
3.79
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2026-06-21 00:49
secure_seq.h
855
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2026-06-21 00:49
seg6.h
2.18
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2026-06-21 00:49
seg6_hmac.h
1.44
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2021-11-01 05:53
seg6_local.h
644
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2021-11-01 05:53
selftests.h
582
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2021-11-01 05:53
slhc_vj.h
6.67
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2021-11-01 05:53
smc.h
2.45
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2021-11-01 05:53
snmp.h
5.14
KB
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2021-11-01 05:53
sock.h
84.33
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2026-06-21 00:49
sock_reuseport.h
1.83
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2026-06-21 00:49
stp.h
383
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2021-11-01 05:53
strparser.h
4.15
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2026-06-21 00:49
switchdev.h
14.27
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2026-06-21 00:49
tcp.h
73.48
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2026-06-21 00:49
tcp_states.h
1.2
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2021-11-01 05:53
timewait_sock.h
925
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2021-11-01 05:53
tipc.h
2.35
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2021-11-01 05:53
tls.h
20.96
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2026-06-21 00:49
tls_toe.h
2.94
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2021-11-01 05:53
transp_v6.h
1.95
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2021-11-01 05:53
tso.h
566
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2021-11-01 05:53
tun_proto.h
988
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2021-11-01 05:53
udp.h
16.64
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2026-06-21 00:49
udp_tunnel.h
12.44
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2026-06-21 00:49
udplite.h
3.67
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2026-06-21 00:49
vsock_addr.h
662
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2021-11-01 05:53
vxlan.h
14.09
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2026-06-21 00:49
wext.h
1.47
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2021-11-01 05:53
x25.h
9.49
KB
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2021-11-01 05:53
x25device.h
387
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2021-11-01 05:53
xdp.h
8.62
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2026-06-21 00:49
xdp_priv.h
446
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2021-11-01 05:53
xdp_sock.h
2.04
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2021-11-01 05:53
xdp_sock_drv.h
5.48
KB
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2026-06-21 00:49
xfrm.h
54.98
KB
-rw-r--r--
2026-06-21 00:49
xsk_buff_pool.h
5.02
KB
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2026-06-21 00:49
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/* SPDX-License-Identifier: GPL-2.0-only */ /* * Kernel Connection Multiplexor * * Copyright (c) 2016 Tom Herbert <tom@herbertland.com> */ #ifndef __NET_KCM_H_ #define __NET_KCM_H_ #include <linux/skbuff.h> #include <net/sock.h> #include <net/strparser.h> #include <uapi/linux/kcm.h> extern unsigned int kcm_net_id; #define KCM_STATS_ADD(stat, count) ((stat) += (count)) #define KCM_STATS_INCR(stat) ((stat)++) struct kcm_psock_stats { unsigned long long tx_msgs; unsigned long long tx_bytes; unsigned long long reserved; unsigned long long unreserved; unsigned int tx_aborts; }; struct kcm_mux_stats { unsigned long long rx_msgs; unsigned long long rx_bytes; unsigned long long tx_msgs; unsigned long long tx_bytes; unsigned int rx_ready_drops; unsigned int tx_retries; unsigned int psock_attach; unsigned int psock_unattach_rsvd; unsigned int psock_unattach; }; struct kcm_stats { unsigned long long rx_msgs; unsigned long long rx_bytes; unsigned long long tx_msgs; unsigned long long tx_bytes; }; struct kcm_tx_msg { unsigned int sent; unsigned int fragidx; unsigned int frag_offset; unsigned int msg_flags; struct sk_buff *frag_skb; struct sk_buff *last_skb; }; /* Socket structure for KCM client sockets */ struct kcm_sock { struct sock sk; struct kcm_mux *mux; struct list_head kcm_sock_list; int index; u32 done : 1; struct work_struct done_work; struct kcm_stats stats; /* Transmit */ struct kcm_psock *tx_psock; struct work_struct tx_work; struct list_head wait_psock_list; struct sk_buff *seq_skb; struct mutex tx_mutex; u32 tx_stopped : 1; /* Don't use bit fields here, these are set under different locks */ bool tx_wait; bool tx_wait_more; /* Receive */ struct kcm_psock *rx_psock; struct list_head wait_rx_list; /* KCMs waiting for receiving */ bool rx_wait; u32 rx_disabled : 1; }; struct bpf_prog; /* Structure for an attached lower socket */ struct kcm_psock { struct sock *sk; struct strparser strp; struct kcm_mux *mux; int index; u32 tx_stopped : 1; u32 done : 1; u32 unattaching : 1; void (*save_state_change)(struct sock *sk); void (*save_data_ready)(struct sock *sk); void (*save_write_space)(struct sock *sk); struct list_head psock_list; struct kcm_psock_stats stats; /* Receive */ struct list_head psock_ready_list; struct bpf_prog *bpf_prog; struct kcm_sock *rx_kcm; unsigned long long saved_rx_bytes; unsigned long long saved_rx_msgs; struct sk_buff *ready_rx_msg; /* Transmit */ struct kcm_sock *tx_kcm; struct list_head psock_avail_list; unsigned long long saved_tx_bytes; unsigned long long saved_tx_msgs; }; /* Per net MUX list */ struct kcm_net { struct mutex mutex; struct kcm_psock_stats aggregate_psock_stats; struct kcm_mux_stats aggregate_mux_stats; struct strp_aggr_stats aggregate_strp_stats; struct list_head mux_list; int count; }; /* Structure for a MUX */ struct kcm_mux { struct list_head kcm_mux_list; struct rcu_head rcu; struct kcm_net *knet; struct list_head kcm_socks; /* All KCM sockets on MUX */ int kcm_socks_cnt; /* Total KCM socket count for MUX */ struct list_head psocks; /* List of all psocks on MUX */ int psocks_cnt; /* Total attached sockets */ struct kcm_mux_stats stats; struct kcm_psock_stats aggregate_psock_stats; struct strp_aggr_stats aggregate_strp_stats; /* Receive */ spinlock_t rx_lock ____cacheline_aligned_in_smp; struct list_head kcm_rx_waiters; /* KCMs waiting for receiving */ struct list_head psocks_ready; /* List of psocks with a msg ready */ struct sk_buff_head rx_hold_queue; /* Transmit */ spinlock_t lock ____cacheline_aligned_in_smp; /* TX and mux locking */ struct list_head psocks_avail; /* List of available psocks */ struct list_head kcm_tx_waiters; /* KCMs waiting for a TX psock */ }; #ifdef CONFIG_PROC_FS int kcm_proc_init(void); void kcm_proc_exit(void); #else static inline int kcm_proc_init(void) { return 0; } static inline void kcm_proc_exit(void) { } #endif static inline void aggregate_psock_stats(struct kcm_psock_stats *stats, struct kcm_psock_stats *agg_stats) { /* Save psock statistics in the mux when psock is being unattached. */ #define SAVE_PSOCK_STATS(_stat) (agg_stats->_stat += stats->_stat) SAVE_PSOCK_STATS(tx_msgs); SAVE_PSOCK_STATS(tx_bytes); SAVE_PSOCK_STATS(reserved); SAVE_PSOCK_STATS(unreserved); SAVE_PSOCK_STATS(tx_aborts); #undef SAVE_PSOCK_STATS } static inline void aggregate_mux_stats(struct kcm_mux_stats *stats, struct kcm_mux_stats *agg_stats) { /* Save psock statistics in the mux when psock is being unattached. */ #define SAVE_MUX_STATS(_stat) (agg_stats->_stat += stats->_stat) SAVE_MUX_STATS(rx_msgs); SAVE_MUX_STATS(rx_bytes); SAVE_MUX_STATS(tx_msgs); SAVE_MUX_STATS(tx_bytes); SAVE_MUX_STATS(rx_ready_drops); SAVE_MUX_STATS(psock_attach); SAVE_MUX_STATS(psock_unattach_rsvd); SAVE_MUX_STATS(psock_unattach); #undef SAVE_MUX_STATS } #endif /* __NET_KCM_H_ */