Linux anchor 4.4.0-210-generic #242-Ubuntu SMP Fri Apr 16 09:57:56 UTC 2021 x86_64
Apache/2.4.18 (Ubuntu)
Server IP : 10.10.100.4 & Your IP : 216.73.217.150
Domains :
Cant Read [ /etc/named.conf ]
User : www-data
Terminal
Auto Root
Create File
Create Folder
Localroot Suggester
Backdoor Destroyer
Readme
/
usr /
src /
linux-headers-4.4.0-119 /
include /
net /
Delete
Unzip
Name
Size
Permission
Date
Action
9p
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
bluetooth
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
caif
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
irda
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
iucv
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
netfilter
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
netns
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
nfc
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
phonet
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
sctp
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
tc_act
[ DIR ]
drwxr-xr-x
2018-04-05 07:11
6lowpan.h
7.53
KB
-rw-r--r--
2016-01-11 00:01
Space.h
1.12
KB
-rw-r--r--
2016-01-11 00:01
act_api.h
4.21
KB
-rw-r--r--
2016-01-11 00:01
addrconf.h
11.45
KB
-rw-r--r--
2018-04-02 18:07
af_ieee802154.h
1.55
KB
-rw-r--r--
2016-01-11 00:01
af_rxrpc.h
1.82
KB
-rw-r--r--
2016-01-11 00:01
af_unix.h
2.12
KB
-rw-r--r--
2018-04-02 18:07
af_vsock.h
6.17
KB
-rw-r--r--
2016-01-11 00:01
ah.h
343
B
-rw-r--r--
2016-01-11 00:01
arp.h
1.83
KB
-rw-r--r--
2018-04-02 18:07
atmclip.h
1.44
KB
-rw-r--r--
2016-01-11 00:01
ax25.h
14.53
KB
-rw-r--r--
2016-01-11 00:01
ax88796.h
998
B
-rw-r--r--
2016-01-11 00:01
bond_3ad.h
9.73
KB
-rw-r--r--
2016-01-11 00:01
bond_alb.h
6.6
KB
-rw-r--r--
2016-01-11 00:01
bond_options.h
3.82
KB
-rw-r--r--
2016-01-11 00:01
bonding.h
18.41
KB
-rw-r--r--
2018-04-02 18:07
busy_poll.h
3.97
KB
-rw-r--r--
2016-01-11 00:01
cfg80211-wext.h
1.95
KB
-rw-r--r--
2016-01-11 00:01
cfg80211.h
187.7
KB
-rw-r--r--
2018-04-02 18:07
cfg802154.h
10.59
KB
-rw-r--r--
2016-01-11 00:01
checksum.h
4.53
KB
-rw-r--r--
2016-01-11 00:01
cipso_ipv4.h
8.17
KB
-rw-r--r--
2018-04-02 18:07
cls_cgroup.h
2.03
KB
-rw-r--r--
2016-01-11 00:01
codel.h
11.37
KB
-rw-r--r--
2018-04-02 18:07
compat.h
2
KB
-rw-r--r--
2016-01-11 00:01
datalink.h
580
B
-rw-r--r--
2016-01-11 00:01
dcbevent.h
1.26
KB
-rw-r--r--
2016-01-11 00:01
dcbnl.h
4.2
KB
-rw-r--r--
2016-01-11 00:01
dn.h
7
KB
-rw-r--r--
2016-01-11 00:01
dn_dev.h
5.32
KB
-rw-r--r--
2016-01-11 00:01
dn_fib.h
3.91
KB
-rw-r--r--
2016-01-11 00:01
dn_neigh.h
929
B
-rw-r--r--
2016-01-11 00:01
dn_nsp.h
5.87
KB
-rw-r--r--
2016-01-11 00:01
dn_route.h
4.36
KB
-rw-r--r--
2016-01-11 00:01
dsa.h
8.93
KB
-rw-r--r--
2016-01-11 00:01
dsfield.h
1.07
KB
-rw-r--r--
2016-01-11 00:01
dst.h
13.42
KB
-rw-r--r--
2018-04-02 18:07
dst_metadata.h
3.61
KB
-rw-r--r--
2018-04-02 18:07
dst_ops.h
2.03
KB
-rw-r--r--
2018-04-02 18:07
esp.h
225
B
-rw-r--r--
2016-01-11 00:01
ethoc.h
538
B
-rw-r--r--
2016-01-11 00:01
fib_rules.h
2.99
KB
-rw-r--r--
2016-01-11 00:01
firewire.h
597
B
-rw-r--r--
2016-01-11 00:01
flow.h
6.78
KB
-rw-r--r--
2016-01-11 00:01
flow_dissector.h
4.84
KB
-rw-r--r--
2016-01-11 00:01
flowcache.h
561
B
-rw-r--r--
2016-01-11 00:01
fou.h
499
B
-rw-r--r--
2016-01-11 00:01
garp.h
2.58
KB
-rw-r--r--
2016-01-11 00:01
gen_stats.h
2.13
KB
-rw-r--r--
2016-01-11 00:01
genetlink.h
13.31
KB
-rw-r--r--
2018-04-02 18:07
geneve.h
1.82
KB
-rw-r--r--
2018-04-02 18:07
gre.h
661
B
-rw-r--r--
2016-01-11 00:01
gro_cells.h
1.94
KB
-rw-r--r--
2016-01-11 00:01
gue.h
3.19
KB
-rw-r--r--
2016-01-11 00:01
icmp.h
1.53
KB
-rw-r--r--
2016-01-11 00:01
ieee80211_radiotap.h
12.22
KB
-rw-r--r--
2016-01-11 00:01
ieee802154_netdev.h
9.13
KB
-rw-r--r--
2016-01-11 00:01
if_inet6.h
6.07
KB
-rw-r--r--
2016-01-11 00:01
inet6_connection_sock.h
1.1
KB
-rw-r--r--
2016-01-11 00:01
inet6_hashtables.h
3.25
KB
-rw-r--r--
2016-01-11 00:01
inet_common.h
1.6
KB
-rw-r--r--
2016-01-11 00:01
inet_connection_sock.h
10.41
KB
-rw-r--r--
2018-04-02 18:07
inet_ecn.h
6.02
KB
-rw-r--r--
2018-04-02 18:07
inet_frag.h
4.36
KB
-rw-r--r--
2018-04-02 18:07
inet_hashtables.h
12.02
KB
-rw-r--r--
2016-01-11 00:01
inet_sock.h
7.87
KB
-rw-r--r--
2018-04-02 18:07
inet_timewait_sock.h
4.11
KB
-rw-r--r--
2016-01-11 00:01
inetpeer.h
3.44
KB
-rw-r--r--
2016-01-11 00:01
ip.h
17.13
KB
-rw-r--r--
2018-04-02 18:07
ip6_checksum.h
2.91
KB
-rw-r--r--
2016-01-11 00:01
ip6_fib.h
7.21
KB
-rw-r--r--
2018-04-02 18:07
ip6_route.h
6.17
KB
-rw-r--r--
2018-04-02 18:07
ip6_tunnel.h
3.28
KB
-rw-r--r--
2018-04-02 18:07
ip_fib.h
9.36
KB
-rw-r--r--
2018-04-02 18:07
ip_tunnels.h
10.69
KB
-rw-r--r--
2018-04-02 18:07
ip_vs.h
46.13
KB
-rw-r--r--
2018-04-02 18:07
ipcomp.h
620
B
-rw-r--r--
2016-01-11 00:01
ipconfig.h
772
B
-rw-r--r--
2016-01-11 00:01
ipv6.h
28.59
KB
-rw-r--r--
2018-04-02 18:07
ipx.h
4.32
KB
-rw-r--r--
2016-01-11 00:01
iw_handler.h
22.21
KB
-rw-r--r--
2018-04-02 18:07
l3mdev.h
5.18
KB
-rw-r--r--
2018-04-02 18:07
lapb.h
4.69
KB
-rw-r--r--
2016-01-11 00:01
lib80211.h
3.88
KB
-rw-r--r--
2016-01-11 00:01
llc.h
4.25
KB
-rw-r--r--
2016-01-11 00:01
llc_c_ac.h
9.34
KB
-rw-r--r--
2016-01-11 00:01
llc_c_ev.h
10.68
KB
-rw-r--r--
2016-01-11 00:01
llc_c_st.h
1.72
KB
-rw-r--r--
2016-01-11 00:01
llc_conn.h
4
KB
-rw-r--r--
2016-01-11 00:01
llc_if.h
2.16
KB
-rw-r--r--
2016-01-11 00:01
llc_pdu.h
14.08
KB
-rw-r--r--
2016-01-11 00:01
llc_s_ac.h
1.55
KB
-rw-r--r--
2016-01-11 00:01
llc_s_ev.h
2.2
KB
-rw-r--r--
2016-01-11 00:01
llc_s_st.h
947
B
-rw-r--r--
2016-01-11 00:01
llc_sap.h
1.08
KB
-rw-r--r--
2016-01-11 00:01
lwtunnel.h
4.07
KB
-rw-r--r--
2016-01-11 00:01
mac80211.h
212.7
KB
-rw-r--r--
2018-04-02 18:07
mac802154.h
12.1
KB
-rw-r--r--
2016-01-11 00:01
mip6.h
1.58
KB
-rw-r--r--
2016-01-11 00:01
mld.h
2.76
KB
-rw-r--r--
2016-01-11 00:01
mpls.h
1.14
KB
-rw-r--r--
2016-01-11 00:01
mpls_iptunnel.h
815
B
-rw-r--r--
2016-01-11 00:01
mrp.h
2.99
KB
-rw-r--r--
2016-01-11 00:01
ndisc.h
5.75
KB
-rw-r--r--
2018-04-02 18:07
neighbour.h
14.16
KB
-rw-r--r--
2016-01-11 00:01
net_namespace.h
9.2
KB
-rw-r--r--
2018-04-02 18:07
net_ratelimit.h
181
B
-rw-r--r--
2016-01-11 00:01
netevent.h
739
B
-rw-r--r--
2016-01-11 00:01
netlabel.h
17.25
KB
-rw-r--r--
2016-01-11 00:01
netlink.h
36.13
KB
-rw-r--r--
2016-01-11 00:01
netprio_cgroup.h
1.08
KB
-rw-r--r--
2016-01-11 00:01
netrom.h
7.61
KB
-rw-r--r--
2016-01-11 00:01
nexthop.h
821
B
-rw-r--r--
2016-01-11 00:01
nl802154.h
11.89
KB
-rw-r--r--
2016-01-11 00:01
p8022.h
408
B
-rw-r--r--
2016-01-11 00:01
ping.h
3.52
KB
-rw-r--r--
2016-01-11 00:01
pkt_cls.h
9.61
KB
-rw-r--r--
2018-04-02 18:07
pkt_sched.h
3.77
KB
-rw-r--r--
2016-01-11 00:01
protocol.h
4.09
KB
-rw-r--r--
2016-01-11 00:01
psnap.h
312
B
-rw-r--r--
2016-01-11 00:01
raw.h
1.84
KB
-rw-r--r--
2016-01-11 00:01
rawv6.h
543
B
-rw-r--r--
2016-01-11 00:01
red.h
10.03
KB
-rw-r--r--
2016-01-11 00:01
regulatory.h
10.12
KB
-rw-r--r--
2016-01-11 00:01
request_sock.h
6.38
KB
-rw-r--r--
2016-01-11 00:01
rose.h
7.59
KB
-rw-r--r--
2016-01-11 00:01
route.h
9.35
KB
-rw-r--r--
2016-01-11 00:01
rtnetlink.h
5.37
KB
-rw-r--r--
2016-01-11 00:01
sch_generic.h
20.05
KB
-rw-r--r--
2018-04-02 18:07
scm.h
3.44
KB
-rw-r--r--
2018-04-02 18:07
secure_seq.h
677
B
-rw-r--r--
2016-01-11 00:01
slhc_vj.h
6.63
KB
-rw-r--r--
2016-01-11 00:01
snmp.h
5.75
KB
-rw-r--r--
2016-01-11 00:01
sock.h
64.74
KB
-rw-r--r--
2018-04-02 18:07
stp.h
344
B
-rw-r--r--
2016-01-11 00:01
switchdev.h
8.81
KB
-rw-r--r--
2018-04-02 18:07
tcp.h
54.1
KB
-rw-r--r--
2018-04-02 18:07
tcp_memcontrol.h
254
B
-rw-r--r--
2016-01-11 00:01
tcp_states.h
1.26
KB
-rw-r--r--
2016-01-11 00:01
timewait_sock.h
1.11
KB
-rw-r--r--
2016-01-11 00:01
transp_v6.h
1.83
KB
-rw-r--r--
2016-01-11 00:01
tso.h
446
B
-rw-r--r--
2016-01-11 00:01
udp.h
9.77
KB
-rw-r--r--
2016-01-11 00:01
udp_tunnel.h
3.24
KB
-rw-r--r--
2016-01-11 00:01
udplite.h
3.75
KB
-rw-r--r--
2016-01-11 00:01
vsock_addr.h
1.05
KB
-rw-r--r--
2016-01-11 00:01
vxlan.h
6.99
KB
-rw-r--r--
2018-04-02 18:07
wext.h
1.47
KB
-rw-r--r--
2016-01-11 00:01
wimax.h
19.97
KB
-rw-r--r--
2016-01-11 00:01
x25.h
9.35
KB
-rw-r--r--
2016-01-11 00:01
x25device.h
348
B
-rw-r--r--
2016-01-11 00:01
xfrm.h
49.3
KB
-rw-r--r--
2018-04-02 18:07
Save
Rename
/* * Linux INET6 implementation * * Authors: * Pedro Roque <roque@di.fc.ul.pt> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _NET_IPV6_H #define _NET_IPV6_H #include <linux/ipv6.h> #include <linux/hardirq.h> #include <linux/jhash.h> #include <net/if_inet6.h> #include <net/ndisc.h> #include <net/flow.h> #include <net/flow_dissector.h> #include <net/snmp.h> #define SIN6_LEN_RFC2133 24 #define IPV6_MAXPLEN 65535 /* * NextHeader field of IPv6 header */ #define NEXTHDR_HOP 0 /* Hop-by-hop option header. */ #define NEXTHDR_TCP 6 /* TCP segment. */ #define NEXTHDR_UDP 17 /* UDP message. */ #define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */ #define NEXTHDR_ROUTING 43 /* Routing header. */ #define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */ #define NEXTHDR_GRE 47 /* GRE header. */ #define NEXTHDR_ESP 50 /* Encapsulating security payload. */ #define NEXTHDR_AUTH 51 /* Authentication header. */ #define NEXTHDR_ICMP 58 /* ICMP for IPv6. */ #define NEXTHDR_NONE 59 /* No next header */ #define NEXTHDR_DEST 60 /* Destination options header. */ #define NEXTHDR_SCTP 132 /* SCTP message. */ #define NEXTHDR_MOBILITY 135 /* Mobility header. */ #define NEXTHDR_MAX 255 #define IPV6_DEFAULT_HOPLIMIT 64 #define IPV6_DEFAULT_MCASTHOPS 1 /* * Addr type * * type - unicast | multicast * scope - local | site | global * v4 - compat * v4mapped * any * loopback */ #define IPV6_ADDR_ANY 0x0000U #define IPV6_ADDR_UNICAST 0x0001U #define IPV6_ADDR_MULTICAST 0x0002U #define IPV6_ADDR_LOOPBACK 0x0010U #define IPV6_ADDR_LINKLOCAL 0x0020U #define IPV6_ADDR_SITELOCAL 0x0040U #define IPV6_ADDR_COMPATv4 0x0080U #define IPV6_ADDR_SCOPE_MASK 0x00f0U #define IPV6_ADDR_MAPPED 0x1000U /* * Addr scopes */ #define IPV6_ADDR_MC_SCOPE(a) \ ((a)->s6_addr[1] & 0x0f) /* nonstandard */ #define __IPV6_ADDR_SCOPE_INVALID -1 #define IPV6_ADDR_SCOPE_NODELOCAL 0x01 #define IPV6_ADDR_SCOPE_LINKLOCAL 0x02 #define IPV6_ADDR_SCOPE_SITELOCAL 0x05 #define IPV6_ADDR_SCOPE_ORGLOCAL 0x08 #define IPV6_ADDR_SCOPE_GLOBAL 0x0e /* * Addr flags */ #define IPV6_ADDR_MC_FLAG_TRANSIENT(a) \ ((a)->s6_addr[1] & 0x10) #define IPV6_ADDR_MC_FLAG_PREFIX(a) \ ((a)->s6_addr[1] & 0x20) #define IPV6_ADDR_MC_FLAG_RENDEZVOUS(a) \ ((a)->s6_addr[1] & 0x40) /* * fragmentation header */ struct frag_hdr { __u8 nexthdr; __u8 reserved; __be16 frag_off; __be32 identification; }; #define IP6_MF 0x0001 #define IP6_OFFSET 0xFFF8 #define IP6_REPLY_MARK(net, mark) \ ((net)->ipv6.sysctl.fwmark_reflect ? (mark) : 0) #include <net/sock.h> /* sysctls */ extern int sysctl_mld_max_msf; extern int sysctl_mld_qrv; #define _DEVINC(net, statname, modifier, idev, field) \ ({ \ struct inet6_dev *_idev = (idev); \ if (likely(_idev != NULL)) \ SNMP_INC_STATS##modifier((_idev)->stats.statname, (field)); \ SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\ }) /* per device counters are atomic_long_t */ #define _DEVINCATOMIC(net, statname, modifier, idev, field) \ ({ \ struct inet6_dev *_idev = (idev); \ if (likely(_idev != NULL)) \ SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \ SNMP_INC_STATS##modifier((net)->mib.statname##_statistics, (field));\ }) /* per device and per net counters are atomic_long_t */ #define _DEVINC_ATOMIC_ATOMIC(net, statname, idev, field) \ ({ \ struct inet6_dev *_idev = (idev); \ if (likely(_idev != NULL)) \ SNMP_INC_STATS_ATOMIC_LONG((_idev)->stats.statname##dev, (field)); \ SNMP_INC_STATS_ATOMIC_LONG((net)->mib.statname##_statistics, (field));\ }) #define _DEVADD(net, statname, modifier, idev, field, val) \ ({ \ struct inet6_dev *_idev = (idev); \ if (likely(_idev != NULL)) \ SNMP_ADD_STATS##modifier((_idev)->stats.statname, (field), (val)); \ SNMP_ADD_STATS##modifier((net)->mib.statname##_statistics, (field), (val));\ }) #define _DEVUPD(net, statname, modifier, idev, field, val) \ ({ \ struct inet6_dev *_idev = (idev); \ if (likely(_idev != NULL)) \ SNMP_UPD_PO_STATS##modifier((_idev)->stats.statname, field, (val)); \ SNMP_UPD_PO_STATS##modifier((net)->mib.statname##_statistics, field, (val));\ }) /* MIBs */ #define IP6_INC_STATS(net, idev,field) \ _DEVINC(net, ipv6, 64, idev, field) #define IP6_INC_STATS_BH(net, idev,field) \ _DEVINC(net, ipv6, 64_BH, idev, field) #define IP6_ADD_STATS(net, idev,field,val) \ _DEVADD(net, ipv6, 64, idev, field, val) #define IP6_ADD_STATS_BH(net, idev,field,val) \ _DEVADD(net, ipv6, 64_BH, idev, field, val) #define IP6_UPD_PO_STATS(net, idev,field,val) \ _DEVUPD(net, ipv6, 64, idev, field, val) #define IP6_UPD_PO_STATS_BH(net, idev,field,val) \ _DEVUPD(net, ipv6, 64_BH, idev, field, val) #define ICMP6_INC_STATS(net, idev, field) \ _DEVINCATOMIC(net, icmpv6, , idev, field) #define ICMP6_INC_STATS_BH(net, idev, field) \ _DEVINCATOMIC(net, icmpv6, _BH, idev, field) #define ICMP6MSGOUT_INC_STATS(net, idev, field) \ _DEVINC_ATOMIC_ATOMIC(net, icmpv6msg, idev, field +256) #define ICMP6MSGOUT_INC_STATS_BH(net, idev, field) \ _DEVINC_ATOMIC_ATOMIC(net, icmpv6msg, idev, field +256) #define ICMP6MSGIN_INC_STATS_BH(net, idev, field) \ _DEVINC_ATOMIC_ATOMIC(net, icmpv6msg, idev, field) struct ip6_ra_chain { struct ip6_ra_chain *next; struct sock *sk; int sel; void (*destructor)(struct sock *); }; extern struct ip6_ra_chain *ip6_ra_chain; extern rwlock_t ip6_ra_lock; /* This structure is prepared by protocol, when parsing ancillary data and passed to IPv6. */ struct ipv6_txoptions { atomic_t refcnt; /* Length of this structure */ int tot_len; /* length of extension headers */ __u16 opt_flen; /* after fragment hdr */ __u16 opt_nflen; /* before fragment hdr */ struct ipv6_opt_hdr *hopopt; struct ipv6_opt_hdr *dst0opt; struct ipv6_rt_hdr *srcrt; /* Routing Header */ struct ipv6_opt_hdr *dst1opt; struct rcu_head rcu; /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */ }; struct ip6_flowlabel { struct ip6_flowlabel __rcu *next; __be32 label; atomic_t users; struct in6_addr dst; struct ipv6_txoptions *opt; unsigned long linger; struct rcu_head rcu; u8 share; union { struct pid *pid; kuid_t uid; } owner; unsigned long lastuse; unsigned long expires; struct net *fl_net; }; #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 struct ipv6_fl_socklist { struct ipv6_fl_socklist __rcu *next; struct ip6_flowlabel *fl; struct rcu_head rcu; }; static inline struct ipv6_txoptions *txopt_get(const struct ipv6_pinfo *np) { struct ipv6_txoptions *opt; rcu_read_lock(); opt = rcu_dereference(np->opt); if (opt && !atomic_inc_not_zero(&opt->refcnt)) opt = NULL; rcu_read_unlock(); return opt; } static inline void txopt_put(struct ipv6_txoptions *opt) { if (opt && atomic_dec_and_test(&opt->refcnt)) kfree_rcu(opt, rcu); } struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label); struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space, struct ip6_flowlabel *fl, struct ipv6_txoptions *fopt); void fl6_free_socklist(struct sock *sk); int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen); int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq, int flags); int ip6_flowlabel_init(void); void ip6_flowlabel_cleanup(void); bool ip6_autoflowlabel(struct net *net, const struct ipv6_pinfo *np); static inline void fl6_sock_release(struct ip6_flowlabel *fl) { if (fl) atomic_dec(&fl->users); } void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info); int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, struct icmp6hdr *thdr, int len); int ip6_ra_control(struct sock *sk, int sel); int ipv6_parse_hopopts(struct sk_buff *skb); struct ipv6_txoptions *ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt); struct ipv6_txoptions *ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt, int newtype, struct ipv6_opt_hdr __user *newopt, int newoptlen); struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space, struct ipv6_txoptions *opt); bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb, const struct inet6_skb_parm *opt); static inline bool ipv6_accept_ra(struct inet6_dev *idev) { /* If forwarding is enabled, RA are not accepted unless the special * hybrid mode (accept_ra=2) is enabled. */ return idev->cnf.forwarding ? idev->cnf.accept_ra == 2 : idev->cnf.accept_ra; } #if IS_ENABLED(CONFIG_IPV6) static inline int ip6_frag_mem(struct net *net) { return sum_frag_mem_limit(&net->ipv6.frags); } #endif #define IPV6_FRAG_HIGH_THRESH (4 * 1024*1024) /* 4194304 */ #define IPV6_FRAG_LOW_THRESH (3 * 1024*1024) /* 3145728 */ #define IPV6_FRAG_TIMEOUT (60 * HZ) /* 60 seconds */ int __ipv6_addr_type(const struct in6_addr *addr); static inline int ipv6_addr_type(const struct in6_addr *addr) { return __ipv6_addr_type(addr) & 0xffff; } static inline int ipv6_addr_scope(const struct in6_addr *addr) { return __ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK; } static inline int __ipv6_addr_src_scope(int type) { return (type == IPV6_ADDR_ANY) ? __IPV6_ADDR_SCOPE_INVALID : (type >> 16); } static inline int ipv6_addr_src_scope(const struct in6_addr *addr) { return __ipv6_addr_src_scope(__ipv6_addr_type(addr)); } static inline bool __ipv6_addr_needs_scope_id(int type) { return type & IPV6_ADDR_LINKLOCAL || (type & IPV6_ADDR_MULTICAST && (type & (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL))); } static inline __u32 ipv6_iface_scope_id(const struct in6_addr *addr, int iface) { return __ipv6_addr_needs_scope_id(__ipv6_addr_type(addr)) ? iface : 0; } static inline int ipv6_addr_cmp(const struct in6_addr *a1, const struct in6_addr *a2) { return memcmp(a1, a2, sizeof(struct in6_addr)); } static inline bool ipv6_masked_addr_cmp(const struct in6_addr *a1, const struct in6_addr *m, const struct in6_addr *a2) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 const unsigned long *ul1 = (const unsigned long *)a1; const unsigned long *ulm = (const unsigned long *)m; const unsigned long *ul2 = (const unsigned long *)a2; return !!(((ul1[0] ^ ul2[0]) & ulm[0]) | ((ul1[1] ^ ul2[1]) & ulm[1])); #else return !!(((a1->s6_addr32[0] ^ a2->s6_addr32[0]) & m->s6_addr32[0]) | ((a1->s6_addr32[1] ^ a2->s6_addr32[1]) & m->s6_addr32[1]) | ((a1->s6_addr32[2] ^ a2->s6_addr32[2]) & m->s6_addr32[2]) | ((a1->s6_addr32[3] ^ a2->s6_addr32[3]) & m->s6_addr32[3])); #endif } static inline void ipv6_addr_prefix(struct in6_addr *pfx, const struct in6_addr *addr, int plen) { /* caller must guarantee 0 <= plen <= 128 */ int o = plen >> 3, b = plen & 0x7; memset(pfx->s6_addr, 0, sizeof(pfx->s6_addr)); memcpy(pfx->s6_addr, addr, o); if (b != 0) pfx->s6_addr[o] = addr->s6_addr[o] & (0xff00 >> b); } static inline void __ipv6_addr_set_half(__be32 *addr, __be32 wh, __be32 wl) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 #if defined(__BIG_ENDIAN) if (__builtin_constant_p(wh) && __builtin_constant_p(wl)) { *(__force u64 *)addr = ((__force u64)(wh) << 32 | (__force u64)(wl)); return; } #elif defined(__LITTLE_ENDIAN) if (__builtin_constant_p(wl) && __builtin_constant_p(wh)) { *(__force u64 *)addr = ((__force u64)(wl) << 32 | (__force u64)(wh)); return; } #endif #endif addr[0] = wh; addr[1] = wl; } static inline void ipv6_addr_set(struct in6_addr *addr, __be32 w1, __be32 w2, __be32 w3, __be32 w4) { __ipv6_addr_set_half(&addr->s6_addr32[0], w1, w2); __ipv6_addr_set_half(&addr->s6_addr32[2], w3, w4); } static inline bool ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 const unsigned long *ul1 = (const unsigned long *)a1; const unsigned long *ul2 = (const unsigned long *)a2; return ((ul1[0] ^ ul2[0]) | (ul1[1] ^ ul2[1])) == 0UL; #else return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0; #endif } #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 static inline bool __ipv6_prefix_equal64_half(const __be64 *a1, const __be64 *a2, unsigned int len) { if (len && ((*a1 ^ *a2) & cpu_to_be64((~0UL) << (64 - len)))) return false; return true; } static inline bool ipv6_prefix_equal(const struct in6_addr *addr1, const struct in6_addr *addr2, unsigned int prefixlen) { const __be64 *a1 = (const __be64 *)addr1; const __be64 *a2 = (const __be64 *)addr2; if (prefixlen >= 64) { if (a1[0] ^ a2[0]) return false; return __ipv6_prefix_equal64_half(a1 + 1, a2 + 1, prefixlen - 64); } return __ipv6_prefix_equal64_half(a1, a2, prefixlen); } #else static inline bool ipv6_prefix_equal(const struct in6_addr *addr1, const struct in6_addr *addr2, unsigned int prefixlen) { const __be32 *a1 = addr1->s6_addr32; const __be32 *a2 = addr2->s6_addr32; unsigned int pdw, pbi; /* check complete u32 in prefix */ pdw = prefixlen >> 5; if (pdw && memcmp(a1, a2, pdw << 2)) return false; /* check incomplete u32 in prefix */ pbi = prefixlen & 0x1f; if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi)))) return false; return true; } #endif struct inet_frag_queue; enum ip6_defrag_users { IP6_DEFRAG_LOCAL_DELIVER, IP6_DEFRAG_CONNTRACK_IN, __IP6_DEFRAG_CONNTRACK_IN = IP6_DEFRAG_CONNTRACK_IN + USHRT_MAX, IP6_DEFRAG_CONNTRACK_OUT, __IP6_DEFRAG_CONNTRACK_OUT = IP6_DEFRAG_CONNTRACK_OUT + USHRT_MAX, IP6_DEFRAG_CONNTRACK_BRIDGE_IN, __IP6_DEFRAG_CONNTRACK_BRIDGE_IN = IP6_DEFRAG_CONNTRACK_BRIDGE_IN + USHRT_MAX, }; struct ip6_create_arg { __be32 id; u32 user; const struct in6_addr *src; const struct in6_addr *dst; int iif; u8 ecn; }; void ip6_frag_init(struct inet_frag_queue *q, const void *a); bool ip6_frag_match(const struct inet_frag_queue *q, const void *a); /* * Equivalent of ipv4 struct ip */ struct frag_queue { struct inet_frag_queue q; __be32 id; /* fragment id */ u32 user; struct in6_addr saddr; struct in6_addr daddr; int iif; unsigned int csum; __u16 nhoffset; u8 ecn; }; void ip6_expire_frag_queue(struct net *net, struct frag_queue *fq, struct inet_frags *frags); static inline bool ipv6_addr_any(const struct in6_addr *a) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 const unsigned long *ul = (const unsigned long *)a; return (ul[0] | ul[1]) == 0UL; #else return (a->s6_addr32[0] | a->s6_addr32[1] | a->s6_addr32[2] | a->s6_addr32[3]) == 0; #endif } static inline u32 ipv6_addr_hash(const struct in6_addr *a) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 const unsigned long *ul = (const unsigned long *)a; unsigned long x = ul[0] ^ ul[1]; return (u32)(x ^ (x >> 32)); #else return (__force u32)(a->s6_addr32[0] ^ a->s6_addr32[1] ^ a->s6_addr32[2] ^ a->s6_addr32[3]); #endif } /* more secured version of ipv6_addr_hash() */ static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval) { u32 v = (__force u32)a->s6_addr32[0] ^ (__force u32)a->s6_addr32[1]; return jhash_3words(v, (__force u32)a->s6_addr32[2], (__force u32)a->s6_addr32[3], initval); } static inline bool ipv6_addr_loopback(const struct in6_addr *a) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 const __be64 *be = (const __be64 *)a; return (be[0] | (be[1] ^ cpu_to_be64(1))) == 0UL; #else return (a->s6_addr32[0] | a->s6_addr32[1] | a->s6_addr32[2] | (a->s6_addr32[3] ^ cpu_to_be32(1))) == 0; #endif } /* * Note that we must __force cast these to unsigned long to make sparse happy, * since all of the endian-annotated types are fixed size regardless of arch. */ static inline bool ipv6_addr_v4mapped(const struct in6_addr *a) { return ( #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 *(unsigned long *)a | #else (__force unsigned long)(a->s6_addr32[0] | a->s6_addr32[1]) | #endif (__force unsigned long)(a->s6_addr32[2] ^ cpu_to_be32(0x0000ffff))) == 0UL; } /* * Check for a RFC 4843 ORCHID address * (Overlay Routable Cryptographic Hash Identifiers) */ static inline bool ipv6_addr_orchid(const struct in6_addr *a) { return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010); } static inline bool ipv6_addr_is_multicast(const struct in6_addr *addr) { return (addr->s6_addr32[0] & htonl(0xFF000000)) == htonl(0xFF000000); } static inline void ipv6_addr_set_v4mapped(const __be32 addr, struct in6_addr *v4mapped) { ipv6_addr_set(v4mapped, 0, 0, htonl(0x0000FFFF), addr); } /* * find the first different bit between two addresses * length of address must be a multiple of 32bits */ static inline int __ipv6_addr_diff32(const void *token1, const void *token2, int addrlen) { const __be32 *a1 = token1, *a2 = token2; int i; addrlen >>= 2; for (i = 0; i < addrlen; i++) { __be32 xb = a1[i] ^ a2[i]; if (xb) return i * 32 + 31 - __fls(ntohl(xb)); } /* * we should *never* get to this point since that * would mean the addrs are equal * * However, we do get to it 8) And exacly, when * addresses are equal 8) * * ip route add 1111::/128 via ... * ip route add 1111::/64 via ... * and we are here. * * Ideally, this function should stop comparison * at prefix length. It does not, but it is still OK, * if returned value is greater than prefix length. * --ANK (980803) */ return addrlen << 5; } #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 static inline int __ipv6_addr_diff64(const void *token1, const void *token2, int addrlen) { const __be64 *a1 = token1, *a2 = token2; int i; addrlen >>= 3; for (i = 0; i < addrlen; i++) { __be64 xb = a1[i] ^ a2[i]; if (xb) return i * 64 + 63 - __fls(be64_to_cpu(xb)); } return addrlen << 6; } #endif static inline int __ipv6_addr_diff(const void *token1, const void *token2, int addrlen) { #if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64 if (__builtin_constant_p(addrlen) && !(addrlen & 7)) return __ipv6_addr_diff64(token1, token2, addrlen); #endif return __ipv6_addr_diff32(token1, token2, addrlen); } static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_addr *a2) { return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr)); } __be32 ipv6_select_ident(struct net *net, const struct in6_addr *daddr, const struct in6_addr *saddr); void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb); int ip6_dst_hoplimit(struct dst_entry *dst); static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6, struct dst_entry *dst) { int hlimit; if (ipv6_addr_is_multicast(&fl6->daddr)) hlimit = np->mcast_hops; else hlimit = np->hop_limit; if (hlimit < 0) hlimit = ip6_dst_hoplimit(dst); return hlimit; } /* copy IPv6 saddr & daddr to flow_keys, possibly using 64bit load/store * Equivalent to : flow->v6addrs.src = iph->saddr; * flow->v6addrs.dst = iph->daddr; */ static inline void iph_to_flow_copy_v6addrs(struct flow_keys *flow, const struct ipv6hdr *iph) { BUILD_BUG_ON(offsetof(typeof(flow->addrs), v6addrs.dst) != offsetof(typeof(flow->addrs), v6addrs.src) + sizeof(flow->addrs.v6addrs.src)); memcpy(&flow->addrs.v6addrs, &iph->saddr, sizeof(flow->addrs.v6addrs)); flow->control.addr_type = FLOW_DISSECTOR_KEY_IPV6_ADDRS; } #if IS_ENABLED(CONFIG_IPV6) /* Sysctl settings for net ipv6.auto_flowlabels */ #define IP6_AUTO_FLOW_LABEL_OFF 0 #define IP6_AUTO_FLOW_LABEL_OPTOUT 1 #define IP6_AUTO_FLOW_LABEL_OPTIN 2 #define IP6_AUTO_FLOW_LABEL_FORCED 3 #define IP6_AUTO_FLOW_LABEL_MAX IP6_AUTO_FLOW_LABEL_FORCED #define IP6_DEFAULT_AUTO_FLOW_LABELS IP6_AUTO_FLOW_LABEL_OPTOUT static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb, __be32 flowlabel, bool autolabel, struct flowi6 *fl6) { u32 hash; /* @flowlabel may include more than a flow label, eg, the traffic class. * Here we want only the flow label value. */ flowlabel &= IPV6_FLOWLABEL_MASK; if (flowlabel || net->ipv6.sysctl.auto_flowlabels == IP6_AUTO_FLOW_LABEL_OFF || (!autolabel && net->ipv6.sysctl.auto_flowlabels != IP6_AUTO_FLOW_LABEL_FORCED)) return flowlabel; hash = skb_get_hash_flowi6(skb, fl6); /* Since this is being sent on the wire obfuscate hash a bit * to minimize possbility that any useful information to an * attacker is leaked. Only lower 20 bits are relevant. */ rol32(hash, 16); flowlabel = (__force __be32)hash & IPV6_FLOWLABEL_MASK; if (net->ipv6.sysctl.flowlabel_state_ranges) flowlabel |= IPV6_FLOWLABEL_STATELESS_FLAG; return flowlabel; } static inline int ip6_default_np_autolabel(struct net *net) { switch (net->ipv6.sysctl.auto_flowlabels) { case IP6_AUTO_FLOW_LABEL_OFF: case IP6_AUTO_FLOW_LABEL_OPTIN: default: return 0; case IP6_AUTO_FLOW_LABEL_OPTOUT: case IP6_AUTO_FLOW_LABEL_FORCED: return 1; } } #else static inline void ip6_set_txhash(struct sock *sk) { } static inline __be32 ip6_make_flowlabel(struct net *net, struct sk_buff *skb, __be32 flowlabel, bool autolabel, struct flowi6 *fl6) { return flowlabel; } static inline int ip6_default_np_autolabel(struct net *net) { return 0; } #endif /* * Header manipulation */ static inline void ip6_flow_hdr(struct ipv6hdr *hdr, unsigned int tclass, __be32 flowlabel) { *(__be32 *)hdr = htonl(0x60000000 | (tclass << 20)) | flowlabel; } static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr) { return *(__be32 *)hdr & IPV6_FLOWINFO_MASK; } static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr) { return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK; } static inline u8 ip6_tclass(__be32 flowinfo) { return ntohl(flowinfo & IPV6_TCLASS_MASK) >> IPV6_TCLASS_SHIFT; } /* * Prototypes exported by ipv6 */ /* * rcv function (called from netdevice level) */ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev); int ip6_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb); /* * upper-layer output functions */ int ip6_xmit(const struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6, struct ipv6_txoptions *opt, int tclass); int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr); int ip6_append_data(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int length, int transhdrlen, int hlimit, int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6, struct rt6_info *rt, unsigned int flags, int dontfrag); int ip6_push_pending_frames(struct sock *sk); void ip6_flush_pending_frames(struct sock *sk); int ip6_send_skb(struct sk_buff *skb); struct sk_buff *__ip6_make_skb(struct sock *sk, struct sk_buff_head *queue, struct inet_cork_full *cork, struct inet6_cork *v6_cork); struct sk_buff *ip6_make_skb(struct sock *sk, int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb), void *from, int length, int transhdrlen, int hlimit, int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6, struct rt6_info *rt, unsigned int flags, int dontfrag); static inline struct sk_buff *ip6_finish_skb(struct sock *sk) { return __ip6_make_skb(sk, &sk->sk_write_queue, &inet_sk(sk)->cork, &inet6_sk(sk)->cork); } int ip6_dst_lookup(struct net *net, struct sock *sk, struct dst_entry **dst, struct flowi6 *fl6); struct dst_entry *ip6_dst_lookup_flow(const struct sock *sk, struct flowi6 *fl6, const struct in6_addr *final_dst); struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6, const struct in6_addr *final_dst); struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *orig_dst); /* * skb processing functions */ int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb); int ip6_forward(struct sk_buff *skb); int ip6_input(struct sk_buff *skb); int ip6_mc_input(struct sk_buff *skb); int __ip6_local_out(struct net *net, struct sock *sk, struct sk_buff *skb); int ip6_local_out(struct net *net, struct sock *sk, struct sk_buff *skb); /* * Extension header (options) processing */ void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto, struct in6_addr **daddr_p); void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt, u8 *proto); int ipv6_skip_exthdr(const struct sk_buff *, int start, u8 *nexthdrp, __be16 *frag_offp); bool ipv6_ext_hdr(u8 nexthdr); enum { IP6_FH_F_FRAG = (1 << 0), IP6_FH_F_AUTH = (1 << 1), IP6_FH_F_SKIP_RH = (1 << 2), }; /* find specified header and get offset to it */ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target, unsigned short *fragoff, int *fragflg); int ipv6_find_tlv(struct sk_buff *skb, int offset, int type); struct in6_addr *fl6_update_dst(struct flowi6 *fl6, const struct ipv6_txoptions *opt, struct in6_addr *orig); /* * socket options (ipv6_sockglue.c) */ int ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen); int compat_ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len); int ip6_datagram_connect_v6_only(struct sock *sk, struct sockaddr *addr, int addr_len); int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len); int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len, int *addr_len); void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port, u32 info, u8 *payload); void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info); void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu); int inet6_release(struct socket *sock); int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len); int inet6_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len, int peer); int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int inet6_hash_connect(struct inet_timewait_death_row *death_row, struct sock *sk); /* * reassembly.c */ extern const struct proto_ops inet6_stream_ops; extern const struct proto_ops inet6_dgram_ops; extern const struct proto_ops inet6_sockraw_ops; struct group_source_req; struct group_filter; int ip6_mc_source(int add, int omode, struct sock *sk, struct group_source_req *pgsr); int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf); int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf, struct group_filter __user *optval, int __user *optlen); #ifdef CONFIG_PROC_FS int ac6_proc_init(struct net *net); void ac6_proc_exit(struct net *net); int raw6_proc_init(void); void raw6_proc_exit(void); int tcp6_proc_init(struct net *net); void tcp6_proc_exit(struct net *net); int udp6_proc_init(struct net *net); void udp6_proc_exit(struct net *net); int udplite6_proc_init(void); void udplite6_proc_exit(void); int ipv6_misc_proc_init(void); void ipv6_misc_proc_exit(void); int snmp6_register_dev(struct inet6_dev *idev); int snmp6_unregister_dev(struct inet6_dev *idev); #else static inline int ac6_proc_init(struct net *net) { return 0; } static inline void ac6_proc_exit(struct net *net) { } static inline int snmp6_register_dev(struct inet6_dev *idev) { return 0; } static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; } #endif #ifdef CONFIG_SYSCTL extern struct ctl_table ipv6_route_table_template[]; struct ctl_table *ipv6_icmp_sysctl_init(struct net *net); struct ctl_table *ipv6_route_sysctl_init(struct net *net); int ipv6_sysctl_register(void); void ipv6_sysctl_unregister(void); #endif int ipv6_sock_mc_join(struct sock *sk, int ifindex, const struct in6_addr *addr); int ipv6_sock_mc_drop(struct sock *sk, int ifindex, const struct in6_addr *addr); #endif /* _NET_IPV6_H */