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path: root/net/ipv6/af_inet6.c
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2008-06-09ipv6 netns: init net is used to set bindv6only for new sockPavel Emelyanov
The bindv6only is tuned via sysctl. It is already on a struct net and per-net sysctls allow for its modification (ipv6_sysctl_net_init). Despite this the value configured in the init net is used for the rest of them. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-05[IPV6] MROUTE: Support multicast forwarding.YOSHIFUJI Hideaki
Based on ancient patch by Mickael Hoerdt <hoerdt@clarinet.u-strasbg.fr>, which is available at <http://www-r2.u-strasbg.fr/~hoerdt/dev/linux_ipv6_mforwarding/patch-linux-ipv6-mforwarding-0.1a>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-26[NETNS][IPV6] anycast - handle several network namespaceDaniel Lezcano
Make use of the network namespace information to have this protocol to handle several network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-26[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.YOSHIFUJI Hideaki
Introduce per-sock inlines: sock_net(), sock_net_set() and per-inet_timewait_sock inlines: twsk_net(), twsk_net_set(). Without CONFIG_NET_NS, no namespace other than &init_net exists. Let's explicitly define them to help compiler optimizations. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-21[NETNS][IPV6] tcp6 - make proc per namespaceDaniel Lezcano
Make the proc for tcp6 to be per namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-21[NETNS][IPV6] udp6 - make proc per namespaceDaniel Lezcano
The proc init/exit functions take a new network namespace parameter in order to register/unregister /proc/net/udp6 for a namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-06[UDP]: Revert udplite and code split.David S. Miller
This reverts commit db1ed684f6c430c4cdad67d058688b8a1b5e607c ("[IPV6] UDP: Rename IPv6 UDP files."), commit 8be8af8fa4405652e6c0797db5465a4be8afb998 ("[IPV4] UDP: Move IPv4-specific bits to other file.") and commit e898d4db2749c6052072e9bc4448e396cbdeb06a ("[UDP]: Allow users to configure UDP-Lite."). First, udplite is of such small cost, and it is a core protocol just like TCP and normal UDP are. We spent enormous amounts of effort to make udplite share as much code with core UDP as possible. All of that work is less valuable if we're just going to slap a config option on udplite support. It is also causing build failures, as reported on linux-next, showing that the changeset was not tested very well. In fact, this is the second build failure resulting from the udplite change. Finally, the config options provided was a bool, instead of a modular option. Meaning the udplite code does not even get build tested by allmodconfig builds, and furthermore the user is not presented with a reasonable modular build option which is particularly needed by distribution vendors. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05[NETNS][IPV6] addrconf - Pass the proper network namespace parameters to ↵Daniel Lezcano
addrconf This patch propagates the network namespace pointer to the address configuration routines which need it, which means adding a new parameter to these functions, and make them use it instead of using the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05[NETNS][IPV6] af_inet6 - allow socket creation per namespaceBenjamin Thery
Allow creation of IPv6 raw and datagram sockets in network namespaces other than init_net. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-05[NETNS][IPV6] Move sysctl initialization later on in the IPv6 init sequenceBenjamin Thery
This patch moves initialization of IPv6 sysctl stuff at the end of IPv6 initialization. This will be helpful for network namespaces where some sysctl entries depend on per-namespace variables, that need to be allocated and initialized before they are referenced by sysctl. Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[NETNS][IPV6] route6 - make route6 per namespaceDaniel Lezcano
This patch makes the routing engine use the network namespaces to access routing informations: Add a network namespace parameter to ipv6_route_ioctl and propagate the network namespace value to all the routing code that have not yet been changed. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-04[IPV6]: Move packet_type{} related bits to af_inet6.c.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-03-04[UDP]: Allow users to configure UDP-Lite.YOSHIFUJI Hideaki
Let's give users an option for disabling UDP-Lite (~4K). old: | text data bss dec hex filename | 286498 12432 6072 305002 4a76a net/ipv4/built-in.o | 193830 8192 3204 205226 321aa net/ipv6/ipv6.o new (without UDP-Lite): | text data bss dec hex filename | 284086 12136 5432 301654 49a56 net/ipv4/built-in.o | 191835 7832 3076 202743 317f7 net/ipv6/ipv6.o Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-02-29[INET]: Remove struct net_proto_family* from _init calls.Denis V. Lunev
struct net_proto_family* is not used in icmp[v6]_init, ndisc_init, igmp_init and tcp_v4_init. Remove it. Signed-off-by: Denis V. Lunev <den@openvz.org> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-02-17[IPV6]: Fix hardcoded removing of old module codeWang Chen
Rusty hardcoded the old module code. We can remove it now. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][FRAGS]: Move ctl tables around.Pavel Emelyanov
This is a preparation for sysctl netns-ization. Move the ctl tables to the files, where the tuning variables reside. Plus make the helpers to register the tables. This will simplify the later patches and will keep similar things closer to each other. ipv4, ipv6 and conntrack_reasm are patched differently, but the result is all the tables are in appropriate files. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: Sparse: Declare non-static ipv6_{route,icmp,frag}_sysctl_init() in ↵YOSHIFUJI Hideaki
header. Fix the following sparse warnings: | net/ipv6/route.c:2491:18: warning: symbol 'ipv6_route_sysctl_init' was not declared. Should it be static? | net/ipv6/icmp.c:922:18: warning: symbol 'ipv6_icmp_sysctl_init' was not declared. Should it be static? | net/ipv6/reassembly.c:628:6: warning: symbol 'ipv6_frag_sysctl_init' was not declared. Should it be static? Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2008-01-28[NETNS][IPV6]: inet6_addr - check ipv6 address per namespaceDaniel Lezcano
When a new address is added, we must check if the new address does not already exists. This patch makes this check to be aware of a network namespace, so the check will look if the address already exists for the specified network namespace. While the addresses are browsed, the addresses which do not belong to the namespace are discarded. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS]: Add netns parameter to inet_(dev_)add_type.Eric W. Biederman
The patch extends the inet_addr_type and inet_dev_addr_type with the network namespace pointer. That allows to access the different tables relatively to the network namespace. The modification of the signature function is reported in all the callers of the inet_addr_type using the pointer to the well known init_net. Acked-by: Benjamin Thery <benjamin.thery@bull.net> Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make icmpv6_time sysctl per namespace.Daniel Lezcano
This patch moves the icmpv6_time sysctl to the network namespace structure. Because the ipv6 protocol is not yet per namespace, the variable is accessed relatively to the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make sysctls route per namespace.Daniel Lezcano
All the sysctl concerning the routes are moved to the network namespace structure. A helper function is called to initialize the variables. Because the ipv6 protocol is not yet per namespace, the variables are accessed relatively from the network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make ip6_frags per namespace.Daniel Lezcano
The ip6_frags is moved to the network namespace structure. Because there can be multiple instances of the network namespaces, and the ip6_frags is no longer a global static variable, a helper function has been added to facilitate the initialization of the variables. Until the ipv6 protocol is not per namespace, the variables are accessed relatively from the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make bindv6only sysctl per namespace.Daniel Lezcano
This patch moves the bindv6only sysctl to the network namespace structure. Until the ipv6 protocol is not per namespace, the sysctl variable is always from the initial network namespace. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make a subsystem for af_inet6.Daniel Lezcano
This patch add a network namespace subsystem for the af_inet6 module. It does nothing right now, but one of its purpose is to receive the different variables for sysctl in order to initialize them. When the sysctl variable will be moved to the network namespace structure, they will be no longer initialized as global static variables, so we must find a place to initialize them. Because the sysctl can be disabled, it has no sense to store them in the sysctl_net_ipv6 file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NETNS][IPV6]: Make ipv6_sysctl_register to return a value.Daniel Lezcano
This patch makes the function ipv6_sysctl_register to return a value. The af_inet6 init function is now able to handle an error and catch it from the initialization of the sysctl. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: make the protocol initialization to return an error codeDaniel Lezcano
This patchset makes the different protocols to return an error code, so the af_inet6 module can check the initialization was correct or not. The raw6 was taken into account to be consistent with the rest of the protocols, but the registration is at the same place. Because the raw6 has its own init function, the proto and the ops structure can be moved inside the raw6.c file. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: make inet6_register_protosw to return an error codeDaniel Lezcano
This patch makes the inet6_register_protosw to return an error code. The different protocols can be aware the registration was successful or not and can pass the error to the initial caller, af_inet6. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: make frag to return an error at initializationDaniel Lezcano
This patch makes the frag_init to return an error code, so the af_inet6 module can handle the error. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: make extended headers to return an error at initializationDaniel Lezcano
This patch factorize the code for the differents init functions for rthdr, nodata, destopt in a single function exthdrs_init. This function returns an error so the af_inet6 module can check correctly the initialization. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: make flowlabel to return an errorDaniel Lezcano
This patch makes the flowlab subsystem to return an error code and makes some cleanup with procfs ifdefs. The af_inet6 will use the flowlabel init return code to check the initialization was correct. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[NET]: Remove unused "mibalign" argument for snmp_mib_init().YOSHIFUJI Hideaki
With fixes from Arnaldo Carvalho de Melo. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: Make af_inet6 to check ip6_route_init return value.Daniel Lezcano
The af_inet6 initialization function does not check the return code of the route initilization, so if something goes wrong, the protocol initialization will continue anyway. This patch takes into account the modification made in the different route's initialization subroutines to check the return value and to make the protocol initialization to fail. Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com> Acked-by: Benjamin Thery <benjamin.thery@bull.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[IPV6]: Correct the comment concerning inetsw6 tablePavel Emelyanov
It seems that net/ipv6/af_inet6.c was copied from net/ipv4/af_inet.c, but one comment was not fixed. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-01-28[TCP] splice: add tcp_splice_read() to IPV6Jens Axboe
Thanks to YOSHIFUJI Hideaki for the hint! Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-11-01[NET]: Forget the zero_it argument of sk_alloc()Pavel Emelyanov
Finally, the zero_it argument can be completely removed from the callers and from the function prototype. Besides, fix the checkpatch.pl warnings about using the assignments inside if-s. This patch is rather big, and it is a part of the previous one. I splitted it wishing to make the patches more readable. Hope this particular split helped. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-17[IPV6]: Fix memory leak in cleanup_ipv6_mibs()Pavel Emelyanov
The icmpv6msg mib statistics is not freed. This is almost not critical for current kernel, since ipv6 module is unloadable, but this can happen on load error and will happen every time we stop the network namespace (when we have one, of course). Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Acked-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[IPV6]: Add ICMPMsgStats MIB (RFC 4293) [rev 2]David L Stevens
Background: RFC 4293 deprecates existing individual, named ICMP type counters to be replaced with the ICMPMsgStatsTable. This table includes entries for both IPv4 and IPv6, and requires counting of all ICMP types, whether or not the machine implements the type. These patches "remove" (but not really) the existing counters, and replace them with the ICMPMsgStats tables for v4 and v6. It includes the named counters in the /proc places they were, but gets the values for them from the new tables. It also counts packets generated from raw socket output (e.g., OutEchoes, MLD queries, RA's from radvd, etc). Changes: 1) create icmpmsg_statistics mib 2) create icmpv6msg_statistics mib 3) modify existing counters to use these 4) modify /proc/net/snmp to add "IcmpMsg" with all ICMP types listed by number for easy SNMP parsing 5) modify /proc/net/snmp printing for "Icmp" to get the named data from new counters. [new to 2nd revision] 6) support per-interface ICMP stats 7) use common macro for per-device stat macros Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make the device list and device lookups per namespace.Eric W. Biederman
This patch makes most of the generic device layer network namespace safe. This patch makes dev_base_head a network namespace variable, and then it picks up a few associated variables. The functions: dev_getbyhwaddr dev_getfirsthwbytype dev_get_by_flags dev_get_by_name __dev_get_by_name dev_get_by_index __dev_get_by_index dev_ioctl dev_ethtool dev_load wireless_process_ioctl were modified to take a network namespace argument, and deal with it. vlan_ioctl_set and brioctl_set were modified so their hooks will receive a network namespace argument. So basically anthing in the core of the network stack that was affected to by the change of dev_base was modified to handle multiple network namespaces. The rest of the network stack was simply modified to explicitly use &init_net the initial network namespace. This can be fixed when those components of the network stack are modified to handle multiple network namespaces. For now the ifindex generator is left global. Fundametally ifindex numbers are per namespace, or else we will have corner case problems with migration when we get that far. At the same time there are assumptions in the network stack that the ifindex of a network device won't change. Making the ifindex number global seems a good compromise until the network stack can cope with ifindex changes when you change namespaces, and the like. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make socket creation namespace safe.Eric W. Biederman
This patch passes in the namespace a new socket should be created in and has the socket code do the appropriate reference counting. By virtue of this all socket create methods are touched. In addition the socket create methods are modified so that they will fail if you attempt to create a socket in a non-default network namespace. Failing if we attempt to create a socket outside of the default network namespace ensures that as we incrementally make the network stack network namespace aware we will not export functionality that someone has not audited and made certain is network namespace safe. Allowing us to partially enable network namespaces before all of the exotic protocols are supported. Any protocol layers I have missed will fail to compile because I now pass an extra parameter into the socket creation code. [ Integrated AF_IUCV build fixes from Andrew Morton... -DaveM ] Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-02[TCP]: Invoke tcp_sendmsg() directly, do not use inet_sendmsg().David S. Miller
As discovered by Evegniy Polyakov, if we try to sendmsg after a connection reset, we can do incredibly stupid things. The core issue is that inet_sendmsg() tries to autobind the socket, but we should never do that for TCP. Instead we should just go straight into TCP's sendmsg() code which will do all of the necessary state and pending socket error checks. TCP's sendpage already directly vectors to tcp_sendpage(), so this merely brings sendmsg() in line with that. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10[IPV6] MIP6: Loadable module support for MIPv6.Masahide NAKAMURA
This patch makes MIPv6 loadable module named "mip6". Here is a modprobe.conf(5) example to load it automatically when user application uses XFRM state for MIPv6: alias xfrm-type-10-43 mip6 alias xfrm-type-10-60 mip6 Some MIPv6 feature is not included by this modular, however, it should not be affected to other features like either IPsec or IPv6 with and without the patch. We may discuss XFRM, MH (RAW socket) and ancillary data/sockopt separately for future work. Loadable features: * MH receiving check (to send ICMP error back) * RO header parsing and building (i.e. RH2 and HAO in DSTOPTS) * XFRM policy/state database handling for RO These are NOT covered as loadable: * Home Address flags and its rule on source address selection * XFRM sub policy (depends on its own kernel option) * XFRM functions to receive RO as IPv6 extension header * MH sending/receiving through raw socket if user application opens it (since raw socket allows to do so) * RH2 sending as ancillary data * RH2 operation with setsockopt(2) Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-25[IPV6]: Consolidate common SNMP codeHerbert Xu
This patch moves the non-proc SNMP code into addrconf.c and reuses IPv4 SNMP code where applicable. As a result we can skip proc.o if /proc is disabled. Note that I've made a number of functions static since they're only used by addrconf.c for now. If they ever get used elsewhere we can always remove the static. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6] SNMP: Move some statistic bits to net/ipv6/proc.c.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[INET]: Use jhash + random secret for ehash.David S. Miller
The days are gone when this was not an issue, there are folks out there with huge bot networks that can be used to attack the established hash tables on remote systems. So just like the routing cache and connection tracking hash, use Jenkins hash with random secret input. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPv6]: Use rtnl registration interfaceThomas Graf
Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[SK_BUFF]: Introduce skb_network_header()Arnaldo Carvalho de Melo
For the places where we need a pointer to the network header, it is still legal to touch skb->nh.raw directly if just adding to, subtracting from or setting it to another layer header. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: Introduce SIOCGSTAMPNS ioctl to get timestamps with nanosec resolutionEric Dumazet
Now network timestamps use ktime_t infrastructure, we can add a new ioctl() SIOCGSTAMPNS command to get timestamps in 'struct timespec'. User programs can thus access to nanosecond resolution. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[IPV6]: Decentralize EXPORT_SYMBOLs.YOSHIFUJI Hideaki
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-02-26[IPV6]: Adjust inet6_exit() cleanup sequence against inet6_init()Joe Jin
This patch for adjust inet6_exit() to inverse sequence to inet6_init(). At ipv6_init, it first create proc_root/net/dev_snmp6 entry by call ipv6_misc_proc_init(), then call addrconf_init() to create the corresponding device entry at this directory, but at inet6_exit, ipv6_misc_proc_exit() called first, then call addrconf_init(). Signed-off-by: Joe Jin <joe.jin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>