summaryrefslogtreecommitdiff
path: root/net/ipv6
AgeCommit message (Collapse)Author
2013-05-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
2013-05-01proc: Supply a function to remove a proc entry by PDEDavid Howells
Supply a function (proc_remove()) to remove a proc entry (and any subtree rooted there) by proc_dir_entry pointer rather than by name and (optionally) root dir entry pointer. This allows us to eliminate all remaining pde->name accesses outside of procfs. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Grant Likely <grant.likely@linaro.or> cc: linux-acpi@vger.kernel.org cc: openipmi-developer@lists.sourceforge.net cc: devicetree-discuss@lists.ozlabs.org cc: linux-pci@vger.kernel.org cc: netdev@vger.kernel.org cc: netfilter-devel@vger.kernel.org cc: alsa-devel@alsa-project.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-29net: Add MIB counters for checksum errorsEric Dumazet
Add MIB counters for checksum errors in IP layer, and TCP/UDP/ICMP layers, to help diagnose problems. $ nstat -a | grep Csum IcmpInCsumErrors 72 0.0 TcpInCsumErrors 382 0.0 UdpInCsumErrors 463221 0.0 Icmp6InCsumErrors 75 0.0 Udp6InCsumErrors 173442 0.0 IpExtInCsumErrors 10884 0.0 Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-29ipv6: Kill ipv6 dependency of icmpv6_send().Pravin B Shelar
Following patch adds icmp-registration module for ipv6. It allows ipv6 protocol to register icmp_sender which is used for sending ipv6 icmp msgs. This extra layer allows us to kill ipv6 dependency for sending icmp packets. This patch also fixes ip_tunnel compilation problem when ip_tunnel is statically compiled in kernel but ipv6 is module Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c drivers/net/ethernet/intel/igb/igb_main.c drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c include/net/scm.h net/batman-adv/routing.c net/ipv4/tcp_input.c The e{uid,gid} --> {uid,gid} credentials fix conflicted with the cleanup in net-next to now pass cred structs around. The be2net driver had a bug fix in 'net' that overlapped with the VLAN interface changes by Patrick McHardy in net-next. An IGB conflict existed because in 'net' the build_skb() support was reverted, and in 'net-next' there was a comment style fix within that code. Several batman-adv conflicts were resolved by making sure that all calls to batadv_is_my_mac() are changed to have a new bat_priv first argument. Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO rewrite in 'net-next', mostly overlapping changes. Thanks to Stephen Rothwell and Antonio Quartulli for help with several of these merge resolutions. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next Pablo Neira Ayuso says: ==================== The following patchset contains a small batch of Netfilter updates for your net-next tree, they are: * Three patches that provide more accurate error reporting to user-space, instead of -EPERM, in IPv4/IPv6 netfilter re-routing code and NAT, from Patrick McHardy. * Update copyright statements in Netfilter filters of Patrick McHardy, from himself. * Add Kconfig dependency on the raw/mangle tables to the rpfilter, from Florian Westphal. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== If time allows, please consider pulling the following patchset contains two late Netfilter fixes, they are: * Skip broadcast/multicast locally generated traffic in the rpfilter, (closes netfilter bugzilla #814), from Florian Westphal. * Fix missing elements in the listing of ipset bitmap ip,mac set type with timeout support enabled, from Jozsef Kadlecsik. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-19netfilter: xt_rpfilter: depend on raw or mangle tableFlorian Westphal
rpfilter is only valid in raw/mangle PREROUTING, i.e. RPFILTER=y|m is useless without raw or mangle table support. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-19netfilter: xt_rpfilter: skip locally generated broadcast/multicast, tooFlorian Westphal
Alex Efros reported rpfilter module doesn't match following packets: IN=br.qemu SRC=192.168.2.1 DST=192.168.2.255 [ .. ] (netfilter bugzilla #814). Problem is that network stack arranges for the locally generated broadcasts to appear on the interface they were sent out, so the IFF_LOOPBACK check doesn't trigger. As -m rpfilter is restricted to PREROUTING, we can check for existing rtable instead, it catches locally-generated broad/multicast case, too. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-18netfilter: add my copyright statementsPatrick McHardy
Add copyright statements to all netfilter files which have had significant changes done by myself in the past. Some notes: - nf_conntrack_ecache.c was incorrectly attributed to Rusty and Netfilter Core Team when it got split out of nf_conntrack_core.c. The copyrights even state a date which lies six years before it was written. It was written in 2005 by Harald and myself. - net/ipv{4,6}/netfilter.c, net/netfitler/nf_queue.c were missing copyright statements. I've added the copyright statement from net/netfilter/core.c, where this code originated - for nf_conntrack_proto_tcp.c I've also added Jozsef, since I didn't want it to give the wrong impression Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-17net: drop dst before queueing fragmentsEric Dumazet
Commit 4a94445c9a5c (net: Use ip_route_input_noref() in input path) added a bug in IP defragmentation handling, as non refcounted dst could escape an RCU protected section. Commit 64f3b9e203bd068 (net: ip_expire() must revalidate route) fixed the case of timeouts, but not the general problem. Tom Parkin noticed crashes in UDP stack and provided a patch, but further analysis permitted us to pinpoint the root cause. Before queueing a packet into a frag list, we must drop its dst, as this dst has limited lifetime (RCU protected) When/if a packet is finally reassembled, we use the dst of the very last skb, still protected by RCU and valid, as the dst of the reassembled packet. Use same logic in IPv6, as there is no need to hold dst references. Reported-by: Tom Parkin <tparkin@katalix.com> Tested-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-14net: sock: make sock_tx_timestamp voidDaniel Borkmann
Currently, sock_tx_timestamp() always returns 0. The comment that describes the sock_tx_timestamp() function wrongly says that it returns an error when an invalid argument is passed (from commit 20d4947353be, ``net: socket infrastructure for SO_TIMESTAMPING''). Make the function void, so that we can also remove all the unneeded if conditions that check for such a _non-existant_ error case in the output path. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-14ipv6: statically link register_inet6addr_notifier()Cong Wang
Tomas reported the following build error: net/built-in.o: In function `ieee80211_unregister_hw': (.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier' net/built-in.o: In function `ieee80211_register_hw': (.text+0x10f610): undefined reference to `register_inet6addr_notifier' make: *** [vmlinux] Error 1 when built IPv6 as a module. So we have to statically link these symbols. Reported-by: Tomas Melin <tomas.melin@iki.fi> Cc: Tomas Melin <tomas.melin@iki.fi> Cc: "David S. Miller" <davem@davemloft.net> Cc: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-11Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next Steffen Klassert says: ==================== 1) Allow to avoid copying DSCP during encapsulation by setting a SA flag. From Nicolas Dichtel. 2) Constify the netlink dispatch table, no need to modify it at runtime. From Mathias Krause. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09procfs: new helper - PDE_DATA(inode)Al Viro
The only part of proc_dir_entry the code outside of fs/proc really cares about is PDE(inode)->data. Provide a helper for that; static inline for now, eventually will be moved to fs/proc, along with the knowledge of struct proc_dir_entry layout. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-04-09net: ipv6: only invalidate previously tokenized addressesDaniel Borkmann
Instead of invalidating all IPv6 addresses with global scope when one decides to use IPv6 tokens, we should only invalidate previous tokens and leave the rest intact until they expire eventually (or are intact forever). For doing this less greedy approach, we're adding a bool at the end of inet6_ifaddr structure instead, for two reasons: i) per-inet6_ifaddr flag space is already used up, making it wider might not be a good idea, since ii) also we do not necessarily need to export this information into user space. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09net: ipv6: also allow token to be set when device not readyDaniel Borkmann
When we set the iftoken in inet6_set_iftoken(), we return -EINVAL when the device does not have flag IF_READY. This is however not necessary and rather an artificial usability barrier, since we simply can set the token despite that, and in case the device is ready, we just send out our rs, otherwise ifup et al. will do this for us anyway. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-09net: ipv6: minor: use in6addr_any in token initDaniel Borkmann
Since we check for !ipv6_addr_any(&in6_dev->token) in addrconf_prefix_rcv(), make the token initialization on device setup more intuitive by using in6addr_any as an initializer. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08net: ipv6: add tokenized interface identifier supportDaniel Borkmann
This patch adds support for IPv6 tokenized IIDs, that allow for administrators to assign well-known host-part addresses to nodes whilst still obtaining global network prefix from Router Advertisements. It is currently in draft status. The primary target for such support is server platforms where addresses are usually manually configured, rather than using DHCPv6 or SLAAC. By using tokenised identifiers, hosts can still determine their network prefix by use of SLAAC, but more readily be automatically renumbered should their network prefix change. [...] The disadvantage with static addresses is that they are likely to require manual editing should the network prefix in use change. If instead there were a method to only manually configure the static identifier part of the IPv6 address, then the address could be automatically updated when a new prefix was introduced, as described in [RFC4192] for example. In such cases a DNS server might be configured with such a tokenised interface identifier of ::53, and SLAAC would use the token in constructing the interface address, using the advertised prefix. [...] http://tools.ietf.org/html/draft-chown-6man-tokenised-ipv6-identifiers-02 The implementation is partially based on top of Mark K. Thompson's proof of concept. However, it uses the Netlink interface for configuration resp. data retrival, so that it can be easily extended in future. Successfully tested by myself. Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-08netfilter: nat: propagate errors from xfrm_me_harder()Patrick McHardy
Propagate errors from ip_xfrm_me_harder() instead of returning EPERM in all cases. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-08netfilter: ipv6: propagate routing errors from ip6_route_me_harder()Patrick McHardy
Propagate routing errors from ip_route_me_harder() when dropping a packet using NF_DROP_ERR(). This makes userspace get the proper error instead of EPERM for everything. # ip -6 r a unreachable default table 100 # ip -6 ru add fwmark 0x1 lookup 100 # ip6tables -t mangle -A OUTPUT -d 2001:4860:4860::8888 -j MARK --set-mark 0x1 Old behaviour: PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted ping: sendmsg: Operation not permitted New behaviour: PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable ping: sendmsg: Network is unreachable Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/nfc/microread/mei.c net/netfilter/nfnetlink_queue_core.c Pull in 'net' to get Eric Biederman's AF_UNIX fix, upon which some cleanups are going to go on-top. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07ipv6/tcp: Stop processing ICMPv6 redirect messagesChristoph Paasch
Tetja Rediske found that if the host receives an ICMPv6 redirect message after sending a SYN+ACK, the connection will be reset. He bisected it down to 093d04d (ipv6: Change skb->data before using icmpv6_notify() to propagate redirect), but the origin of the bug comes from ec18d9a26 (ipv6: Add redirect support to all protocol icmp error handlers.). The bug simply did not trigger prior to 093d04d, because skb->data did not point to the inner IP header and thus icmpv6_notify did not call the correct err_handler. This patch adds the missing "goto out;" in tcp_v6_err. After receiving an ICMPv6 Redirect, we should not continue processing the ICMP in tcp_v6_err, as this may trigger the removal of request-socks or setting sk_err(_soft). Reported-by: Tetja Rediske <tetja@tetja.de> Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-07Merge branch 'master' of git://1984.lsi.us.es/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== The following patchset contains Netfilter and IPVS updates for your net-next tree, most relevantly they are: * Add net namespace support to NFLOG, ULOG and ebt_ulog and NFQUEUE. The LOG and ebt_log target has been also adapted, but they still depend on the syslog netnamespace that seems to be missing, from Gao Feng. * Don't lose indications of congestion in IPv6 fragmentation handling, from Hannes Frederic Sowa.i * IPVS conversion to use RCU, including some code consolidation patches and optimizations, also some from Julian Anastasov. * cpu fanout support for NFQUEUE, from Holger Eitzenberger. * Better error reporting to userspace when dropping packets from all our _*_[xfrm|route]_me_harder functions, from Patrick McHardy. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-06netfilter: implement RFC3168 5.3 (ecn protection) for ipv6 fragmentation ↵Hannes Frederic Sowa
handling This change brings netfilter reassembly logic on par with reassembly.c. The corresponding change in net-next is (eec2e61 ipv6: implement RFC3168 5.3 (ecn protection) for ipv6 fragmentation handling) Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jesper Dangaard Brouer <jbrouer@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-05netfilter: nf_log: prepare net namespace support for loggersGao feng
This patch adds netns support to nf_log and it prepares netns support for existing loggers. It is composed of four major changes. 1) nf_log_register has been split to two functions: nf_log_register and nf_log_set. The new nf_log_register is used to globally register the nf_logger and nf_log_set is used for enabling pernet support from nf_loggers. Per netns is not yet complete after this patch, it comes in separate follow up patches. 2) Add net as a parameter of nf_log_bind_pf. Per netns is not yet complete after this patch, it only allows to bind the nf_logger to the protocol family from init_net and it skips other cases. 3) Adapt all nf_log_packet callers to pass netns as parameter. After this patch, this function only works for init_net. 4) Make the sysctl net/netfilter/nf_log pernet. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-04Merge branch 'master' of git://1984.lsi.us.es/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== The following patchset contains netfilter updates for your net tree, they are: * Fix missing the skb->trace reset in nf_reset, noticed by Gao Feng while using the TRACE target with several net namespaces. * Fix prefix translation in IPv6 NPT if non-multiple of 32 prefixes are used, from Matthias Schiffer. * Fix invalid nfacct objects with empty name, they are now rejected with -EINVAL, spotted by Michael Zintakis, patch from myself. * A couple of fixes for wrong return values in the error path of nfnetlink_queue and nf_conntrack, from Wei Yongjun. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-03netfilter: ip6t_NPT: Fix translation for non-multiple of 32 prefix lengthsMatthias Schiffer
The bitmask used for the prefix mangling was being calculated incorrectly, leading to the wrong part of the address being replaced when the prefix length wasn't a multiple of 32. Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-04-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Pull net into net-next to get the synchronize_net() bug fix in bonding. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-02net IPv6 : Fix broken IPv6 routing table after loopback down-upBalakumaran Kannan
IPv6 Routing table becomes broken once we do ifdown, ifup of the loopback(lo) interface. After down-up, routes of other interface's IPv6 addresses through 'lo' are lost. IPv6 addresses assigned to all interfaces are routed through 'lo' for internal communication. Once 'lo' is down, those routing entries are removed from routing table. But those removed entries are not being re-created properly when 'lo' is brought up. So IPv6 addresses of other interfaces becomes unreachable from the same machine. Also this breaks communication with other machines because of NDISC packet processing failure. This patch fixes this issue by reading all interface's IPv6 addresses and adding them to IPv6 routing table while bringing up 'lo'. ==Testing== Before applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ After applying the patch: $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ sudo ifdown lo $ sudo ifup lo $ route -A inet6 Kernel IPv6 routing table Destination Next Hop Flag Met Ref Use If 2000::20/128 :: U 256 0 0 eth0 fe80::/64 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo ::1/128 :: Un 0 1 0 lo 2000::20/128 :: Un 0 1 0 lo fe80::xxxx:xxxx:xxxx:xxxx/128 :: Un 0 1 0 lo ff00::/8 :: U 256 0 0 eth0 ::/0 :: !n -1 1 1 lo $ Signed-off-by: Balakumaran Kannan <Balakumaran.Kannan@ap.sony.com> Signed-off-by: Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-04-01Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: net/mac80211/sta_info.c net/wireless/core.h Two minor conflicts in wireless. Overlapping additions of extern declarations in net/wireless/core.h and a bug fix overlapping with the addition of a boolean parameter to __ieee80211_key_free(). Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-29ipv6: don't accept node local multicast traffic from the wireHannes Frederic Sowa
Erik Hugne's errata proposal (Errata ID: 3480) to RFC4291 has been verified: http://www.rfc-editor.org/errata_search.php?eid=3480 We have to check for pkt_type and loopback flag because either the packets are allowed to travel over the loopback interface (in which case pkt_type is PACKET_HOST and IFF_LOOPBACK flag is set) or they travel over a non-loopback interface back to us (in which case PACKET_TYPE is PACKET_LOOPBACK and IFF_LOOPBACK flag is not set). Cc: Erik Hugne <erik.hugne@ericsson.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-28net-next: replace obsolete NLMSG_* with type safe nlmsg_*Hong zhi guo
Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: include/net/ipip.h The changes made to ipip.h in 'net' were already included in 'net-next' before that header was moved to another location. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26firewire net, ipv6: IPv6 over Firewire (RFC3146) support.YOSHIFUJI Hideaki / 吉藤英明
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26Tunneling: use IP Tunnel stats APIs.Pravin B Shelar
Use common function get calculate rtnl_link_stats64 stats. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-26GRE: Refactor GRE tunneling code.Pravin B Shelar
Following patch refactors GRE code into ip tunneling code and GRE specific code. Common tunneling code is moved to ip_tunnel module. ip_tunnel module is written as generic library which can be used by different tunneling implementations. ip_tunnel module contains following components: - packet xmit and rcv generic code. xmit flow looks like (gre_xmit/ipip_xmit)->ip_tunnel_xmit->ip_local_out. - hash table of all devices. - lookup for tunnel devices. - control plane operations like device create, destroy, ioctl, netlink operations code. - registration for tunneling modules, like gre, ipip etc. - define single pcpu_tstats dev->tstats. - struct tnl_ptk_info added to pass parsed tunnel packet parameters. ipip.h header is renamed to ip_tunnel.h Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25ipv6: fix bad free of addrconf_init_netHong Zhiguo
Signed-off-by: Hong Zhiguo <honkiko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-25Merge branch 'master' of git://1984.lsi.us.es/nf-nextDavid S. Miller
Pablo Neira Ayuso says: ==================== The following patchset contains Netfilter/IPVS updates for your net-next tree, they are: * Better performance in nfnetlink_queue by avoiding copy from the packet to netlink message, from Eric Dumazet. * Remove unnecessary locking in the exit path of ebt_ulog, from Gao Feng. * Use new function ipv6_iface_scope_id in nf_ct_ipv6, from Hannes Frederic Sowa. * A couple of sparse fixes for IPVS, from Julian Anastasov. * Use xor hashing in nfnetlink_queue, as suggested by Eric Dumazet, from myself. * Allow to dump expectations per master conntrack via ctnetlink, from myself. * A couple of cleanups to use PTR_RET in module init path, from Silviu-Mihai Popescu. * Remove nf_conntrack module a bit faster if netns are in use, from Vladimir Davydov. * Use checksum_partial in ip6t_NPT, from YOSHIFUJI Hideaki. * Sparse fix for nf_conntrack, from Stephen Hemminger. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24ipv6: implement RFC3168 5.3 (ecn protection) for ipv6 fragmentation handlingHannes Frederic Sowa
Hello! After patch 1 got accepted to net-next I will also send a patch to netfilter-devel to make the corresponding changes to the netfilter reassembly logic. Thanks, Hannes -- >8 -- [PATCH 2/2] ipv6: implement RFC3168 5.3 (ecn protection) for ipv6 fragmentation handling This patch also ensures that INET_ECN_CE is propagated if one fragment had the codepoint set. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jesper Dangaard Brouer <jbrouer@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-24ipv6: provide addr and netconf dump consistency infoNicolas Dichtel
This patch adds a dev_addr_genid for IPv6. The goal is to use it, combined with dev_base_seq to check if a change occurs during a netlink dump. If a change is detected, the flag NLM_F_DUMP_INTR is set in the first message after the dump was interrupted. Note that only dump of unicast addresses is checked (multicast and anycast are not checked). Reported-by: Junwei Zhang <junwei.zhang@6wind.com> Reported-by: Hongjun Li <hongjun.li@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-22rtnetlink: Remove passing of attributes into rtnl_doit functionsThomas Graf
With decnet converted, we can finally get rid of rta_buf and its computations around it. It also gets rid of the minimal header length verification since all message handlers do that explicitly anyway. Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Pull in the 'net' tree to get Daniel Borkmann's flow dissector infrastructure change. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20udp: add encap_destroy callbackTom Parkin
Users of udp encapsulation currently have an encap_rcv callback which they can use to hook into the udp receive path. In situations where a encapsulation user allocates resources associated with a udp encap socket, it may be convenient to be able to also hook the proto .destroy operation. For example, if an encap user holds a reference to the udp socket, the destroy hook might be used to relinquish this reference. This patch adds a socket destroy hook into udp, which is set and enabled in the same way as the existing encap_rcv hook. Signed-off-by: Tom Parkin <tparkin@katalix.com> Signed-off-by: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-20Merge branch 'master' of git://1984.lsi.us.es/nfDavid S. Miller
Pablo Neira Ayuso says: ==================== The following patchset contains 7 Netfilter/IPVS fixes for 3.9-rc, they are: * Restrict IPv6 stateless NPT targets to the mangle table. Many users are complaining that this target does not work in the nat table, which is the wrong table for it, from Florian Westphal. * Fix possible use before initialization in the netns init path of several conntrack protocol trackers (introduced recently while improving conntrack netns support), from Gao Feng. * Fix incorrect initialization of copy_range in nfnetlink_queue, spotted by Eric Dumazet during the NFWS2013, patch from myself. * Fix wrong calculation of next SCTP chunk in IPVS, from Julian Anastasov. * Remove rcu_read_lock section in IPVS while calling ipv4_update_pmtu not required anymore after change introduced in 3.7, again from Julian. * Fix SYN looping in IPVS state sync if the backup is used a real server in DR/TUN modes, this required a new /proc entry to disable the director function when acting as backup, also from Julian. * Remove leftover IP_NF_QUEUE Kconfig after ip_queue removal, noted by Paul Bolle. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-19inet: limit length of fragment queue hash table bucket listsHannes Frederic Sowa
This patch introduces a constant limit of the fragment queue hash table bucket list lengths. Currently the limit 128 is choosen somewhat arbitrary and just ensures that we can fill up the fragment cache with empty packets up to the default ip_frag_high_thresh limits. It should just protect from list iteration eating considerable amounts of cpu. If we reach the maximum length in one hash bucket a warning is printed. This is implemented on the caller side of inet_frag_find to distinguish between the different users of inet_fragment.c. I dropped the out of memory warning in the ipv4 fragment lookup path, because we already get a warning by the slab allocator. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jesper Dangaard Brouer <jbrouer@redhat.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-18tcp: dont handle MTU reduction on LISTEN socketEric Dumazet
When an ICMP ICMP_FRAG_NEEDED (or ICMPV6_PKT_TOOBIG) message finds a LISTEN socket, and this socket is currently owned by the user, we set TCP_MTU_REDUCED_DEFERRED flag in listener tsq_flags. This is bad because if we clone the parent before it had a chance to clear the flag, the child inherits the tsq_flags value, and next tcp_release_cb() on the child will decrement sk_refcnt. Result is that we might free a live TCP socket, as reported by Dormando. IPv4: Attempt to release TCP socket in state 1 Fix this issue by testing sk_state against TCP_LISTEN early, so that we set TCP_MTU_REDUCED_DEFERRED on appropriate sockets (not a LISTEN one) This bug was introduced in commit 563d34d05786 (tcp: dont drop MTU reduction indications) Reported-by: dormando <dormando@rydia.net> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-17tcp: Remove TCPCTChristoph Paasch
TCPCT uses option-number 253, reserved for experimental use and should not be used in production environments. Further, TCPCT does not fully implement RFC 6013. As a nice side-effect, removing TCPCT increases TCP's performance for very short flows: Doing an apache-benchmark with -c 100 -n 100000, sending HTTP-requests for files of 1KB size. before this patch: average (among 7 runs) of 20845.5 Requests/Second after: average (among 7 runs) of 21403.6 Requests/Second Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-15netfilter: ip6t_NPT: restrict to mangle tableFlorian Westphal
As the translation is stateless, using it in nat table doesn't work (only initial packet is translated). filter table OUTPUT works but won't re-route the packet after translation. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-03-15netfilter: nf_ct_ipv6: use ipv6_iface_scope_id in conntrack to return scope idHannes Frederic Sowa
As in (842df07 ipv6: use newly introduced __ipv6_addr_needs_scope_id and ipv6_iface_scope_id). Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>