- 04 9月, 2013 3 次提交
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由 Nicolas Dichtel 提交于
This function was only used when a packet was sent to another netns. Now, it can also be used after tunnel encapsulation or decapsulation. Only skb_orphan() should not be done when a packet is not crossing netns. Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
This argument is not used, let's remove it. Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tim Gardner 提交于
This config option is superfluous in that it only guards a call to neigh_app_ns(). Enabling CONFIG_ARPD by default has no change in behavior. There will now be call to __neigh_notify() for each ARP resolution, which has no impact unless there is a user space daemon waiting to receive the notification, i.e., the case for which CONFIG_ARPD was designed anyways. Suggested-by: NEric W. Biederman <ebiederm@xmission.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> Cc: James Morris <jmorris@namei.org> Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> Cc: Patrick McHardy <kaber@trash.net> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Gao feng <gaofeng@cn.fujitsu.com> Cc: Joe Perches <joe@perches.com> Cc: Veaceslav Falico <vfalico@redhat.com> Signed-off-by: NTim Gardner <tim.gardner@canonical.com> Reviewed-by: N"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 9月, 2013 10 次提交
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由 Cong Wang 提交于
As suggested by Pravin, we can unify the code in case of duplicated code. Cc: Pravin Shelar <pshelar@nicira.com> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
Similar to commit 73136267 (tunneling: Add generic Tunnel segmentation) This patch adds generic tunneling offloading support for IPv6-UDP based tunnels. This can be used by tunneling protocols like VXLAN. Cc: Jesse Gross <jesse@nicira.com> Cc: Pravin B Shelar <pshelar@nicira.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
This patch adds the IPv6 version of "arp_reduce", ndisc_send_na() will be needed. Cc: David S. Miller <davem@davemloft.net> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
in6_dev_put() will be needed by vxlan module, so is in6_dev_finish_destroy(). Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
route short circuit only has IPv4 part, this patch adds the IPv6 part. nd_tbl will be needed. Cc: David S. Miller <davem@davemloft.net> Cc: David Stevens <dlstevens@us.ibm.com> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
Because vxlan module will call ip6_dst_lookup() in TX path, which will hold write lock. So we have to release this write lock before calling ndisc_send_rs(), otherwise could deadlock. Reviewed-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
It is needed by vxlan module. Noticed by Mike. Cc: Mike Rapoport <mike.rapoport@ravellosystems.com> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
In case IPv6 is compiled as a module, introduce a stub for ipv6_sock_mc_join and ipv6_sock_mc_drop etc.. It will be used by vxlan module. Suggested by Ben. This is an ugly but easy solution for now. Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
It will be used the vxlan kernel module. Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Cong Wang 提交于
It will be used by vxlan, and may not be inlined. Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NCong Wang <amwang@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 31 8月, 2013 1 次提交
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由 Thomas Graf 提交于
A sk variable initialized to ndisc_sk is already available outside of the branch. Signed-off-by: NThomas Graf <tgraf@suug.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 30 8月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
This patch implements RFC6980: Drop fragmented ndisc packets by default. If a fragmented ndisc packet is received the user is informed that it is possible to disable the check. Cc: Fernando Gont <fernando@gont.com.ar> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 28 8月, 2013 5 次提交
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由 Patrick McHardy 提交于
Add an IPv6 version of the SYNPROXY target. The main differences to the IPv4 version is routing and IP header construction. Signed-off-by: NPatrick McHardy <kaber@trash.net> Tested-by: NMartin Topholm <mph@one.com> Signed-off-by: NJesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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由 Patrick McHardy 提交于
Extract the local TCP stack independant parts of tcp_v6_init_sequence() and cookie_v6_check() and export them for use by the upcoming IPv6 SYNPROXY target. Signed-off-by: NPatrick McHardy <kaber@trash.net> Acked-by: NDavid S. Miller <davem@davemloft.net> Tested-by: NMartin Topholm <mph@one.com> Signed-off-by: NJesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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由 Patrick McHardy 提交于
Split out sequence number adjustments from NAT and move them to the conntrack core to make them usable for SYN proxying. The sequence number adjustment information is moved to a seperate extend. The extend is added to new conntracks when a NAT mapping is set up for a connection using a helper. As a side effect, this saves 24 bytes per connection with NAT in the common case that a connection does not have a helper assigned. Signed-off-by: NPatrick McHardy <kaber@trash.net> Tested-by: NMartin Topholm <mph@one.com> Signed-off-by: NJesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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由 Nathan Hintz 提交于
'nf_defrag_ipv6' is built as a separate module; it shouldn't be included in the 'nf_conntrack_ipv6' module as well. Signed-off-by: NNathan Hintz <nlhintz@hotmail.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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由 Phil Oester 提交于
As reported by Casper Gripenberg, in a bridged setup, using ip[6]t_REJECT with the tcp-reset option sends out reset packets with the src MAC address of the local bridge interface, instead of the MAC address of the intended destination. This causes some routers/firewalls to drop the reset packet as it appears to be spoofed. Fix this by bypassing ip[6]_local_out and setting the MAC of the sender in the tcp reset packet. This closes netfilter bugzilla #531. Signed-off-by: NPhil Oester <kernel@linuxace.com> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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- 23 8月, 2013 1 次提交
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由 Duan Jiong 提交于
rfc 4861 says the Redirected Header option is optional, so the kernel should not drop the Redirect Message that has no Redirected Header option. In this patch, the function ip6_redirect_no_header() is introduced to deal with that condition. Signed-off-by: NDuan Jiong <duanj.fnst@cn.fujitsu.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org>
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- 21 8月, 2013 7 次提交
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由 Daniel Borkmann 提交于
Instead of hard-coding length values, use a define to make it clear where those lengths come from. Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Daniel Borkmann 提交于
For the functions mld_gq_start_timer(), mld_ifc_start_timer(), and mld_dad_start_timer(), rather use unsigned long than int as we operate only on unsigned values anyway. This seems more appropriate as there is no good reason to do type conversions to int, that could lead to future errors. Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Daniel Borkmann 提交于
Use proper API functions to calculate jiffies from milliseconds and not the crude method of dividing HZ by a value. This ensures more accurate values even in the case of strange HZ values. While at it, also simplify code in the mlh2 case by using max(). Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Acked-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
When an Xin6 tunnel is set up, we check other netdevices to inherit the link- local address. If none is available, the interface will not have any link-local address. RFC4862 expects that each interface has a link local address. Now than this kind of tunnels supports x-netns, it's easy to fall in this case (by creating the tunnel in a netns where ethernet interfaces stand and then moving it to a other netns where no ethernet interface is available). RFC4291, Appendix A suggests two methods: the first is the one currently implemented, the second is to generate a unique identifier, so that we can always generate the link-local address. Let's use eth_random_addr() to generate this interface indentifier. I remove completly the previous method, hence for the whole life of the interface, the link-local address remains the same (previously, it depends on which ethernet interfaces were up when the tunnel interface was set up). Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
This reverts commit df8372ca. These changes are buggy and make unintended semantic changes to ip6_tnl_add_linklocal(). Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 dingtianhong 提交于
ERROR: code indent should use tabs where possible: fix 2. ERROR: do not use assignment in if condition: fix 5. Signed-off-by: NDing Tianhong <dingtianhong@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 dingtianhong 提交于
Just follow the Joe Perches's opinion, it is a better way to fix the style errors. Suggested-by: NJoe Perches <joe@perches.com> Signed-off-by: NDing Tianhong <dingtianhong@huawei.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 20 8月, 2013 2 次提交
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由 Hannes Frederic Sowa 提交于
It is not allowed for an ipv6 packet to contain multiple fragmentation headers. So discard packets which were already reassembled by fragmentation logic and send back a parameter problem icmp. The updates for RFC 6980 will come in later, I have to do a bit more research here. Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Hannes Frederic Sowa 提交于
Because of the max_addresses check attackers were able to disable privacy extensions on an interface by creating enough autoconfigured addresses: <http://seclists.org/oss-sec/2012/q4/292> But the check is not actually needed: max_addresses protects the kernel to install too many ipv6 addresses on an interface and guards addrconf_prefix_rcv to install further addresses as soon as this limit is reached. We only generate temporary addresses in direct response of a new address showing up. As soon as we filled up the maximum number of addresses of an interface, we stop installing more addresses and thus also stop generating more temp addresses. Even if the attacker tries to generate a lot of temporary addresses by announcing a prefix and removing it again (lifetime == 0) we won't install more temp addresses, because the temporary addresses do count to the maximum number of addresses, thus we would stop installing new autoconfigured addresses when the limit is reached. This patch fixes CVE-2013-0343 (but other layer-2 attacks are still possible). Thanks to Ding Tianhong to bring this topic up again. Cc: Ding Tianhong <dingtianhong@huawei.com> Cc: George Kargiotakis <kargig@void.gr> Cc: P J P <ppandit@redhat.com> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: NDing Tianhong <dingtianhong@huawei.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 8月, 2013 1 次提交
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由 Francesco Fusco 提交于
UIDs are printed in the proc_fs as signed int, whereas they are unsigned int. Signed-off-by: NFrancesco Fusco <ffusco@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 15 8月, 2013 2 次提交
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由 Nicolas Dichtel 提交于
This patch allows to switch the netns when packet is encapsulated or decapsulated. In other word, the encapsulated packet is received in a netns, where the lookup is done to find the tunnel. Once the tunnel is found, the packet is decapsulated and injecting into the corresponding interface which stands to another netns. When one of the two netns is removed, the tunnel is destroyed. Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
It's better to use available helpers for these tests. Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 8月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
Commit cab70040 ("net: igmp: Reduce Unsolicited report interval to 1s when using IGMPv3") and 2690048c ("net: igmp: Allow user-space configuration of igmp unsolicited report interval") by William Manley made igmp unsolicited report intervals configurable per interface and corrected the interval of unsolicited igmpv3 report messages resendings to 1s. Same needs to be done for IPv6: MLDv1 (RFC2710 7.10.): 10 seconds MLDv2 (RFC3810 9.11.): 1 second Both intervals are configurable via new procfs knobs mldv1_unsolicited_report_interval and mldv2_unsolicited_report_interval. (also added .force_mld_version to ipv6_devconf_dflt to bring structs in line without semantic changes) v2: a) Joined documentation update for IPv4 and IPv6 MLD/IGMP unsolicited_report_interval procfs knobs. b) incorporate stylistic feedback from William Manley v3: a) add new DEVCONF_* values to the end of the enum (thanks to David Miller) Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: William Manley <william.manley@youview.com> Cc: Benjamin LaHaise <bcrl@kvack.org> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 8月, 2013 2 次提交
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由 Florian Westphal 提交于
Let nf_ct_delete handle delivery of the DESTROY event. Based on earlier patch from Pablo Neira. Signed-off-by: NFlorian Westphal <fw@strlen.de> Signed-off-by: NPablo Neira Ayuso <pablo@netfilter.org>
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由 Eric Dumazet 提交于
With GRO/LRO processing, there is a problem because Ip[6]InReceives SNMP counters do not count the number of frames, but number of aggregated segments. Its probably too late to change this now. This patch adds four new counters, tracking number of frames, regardless of LRO/GRO, and on a per ECN status basis, for IPv4 and IPv6. Ip[6]NoECTPkts : Number of packets received with NOECT Ip[6]ECT1Pkts : Number of packets received with ECT(1) Ip[6]ECT0Pkts : Number of packets received with ECT(0) Ip[6]CEPkts : Number of packets received with Congestion Experienced lph37:~# nstat | egrep "Pkts|InReceive" IpInReceives 1634137 0.0 Ip6InReceives 3714107 0.0 Ip6InNoECTPkts 19205 0.0 Ip6InECT0Pkts 52651828 0.0 IpExtInNoECTPkts 33630 0.0 IpExtInECT0Pkts 15581379 0.0 IpExtInCEPkts 6 0.0 Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 8月, 2013 1 次提交
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由 Hannes Frederic Sowa 提交于
In case a subtree did not match we currently stop backtracking and return NULL (root table from fib_lookup). This could yield in invalid routing table lookups when using subtrees. Instead continue to backtrack until a valid subtree or node is found and return this match. Also remove unneeded NULL check. Reported-by: NTeco Boot <teco@inf-net.nl> Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David Lamparter <equinox@diac24.net> Cc: <boutier@pps.univ-paris-diderot.fr> Signed-off-by: NHannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 8月, 2013 1 次提交
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由 Daniel Borkmann 提交于
Commit 91657eaf ("xfrm: take net hdr len into account for esp payload size calculation") introduced a possible interger overflow in esp{4,6}_get_mtu() handlers in case of x->props.mode equals XFRM_MODE_TUNNEL. Thus, the following expression will overflow unsigned int net_adj; ... <case ipv{4,6} XFRM_MODE_TUNNEL> net_adj = 0; ... return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) - net_adj) & ~(align - 1)) + (net_adj - 2); where (net_adj - 2) would be evaluated as <foo> + (0 - 2) in an unsigned context. Fix it by simply removing brackets as those operations here do not need to have special precedence. Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Cc: Benjamin Poirier <bpoirier@suse.de> Cc: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: NBenjamin Poirier <bpoirier@suse.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 8月, 2013 1 次提交
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由 Stefan Tomanek 提交于
This change brings the suppressor attribute names into line; it also changes the data types to provide a more consistent interface. While -1 indicates that the suppressor is not enabled, values >= 0 for suppress_prefixlen or suppress_ifgroup reject routing decisions violating the constraint. This changes the previously presented behaviour of suppress_prefixlen, where a prefix length _less_ than the attribute value was rejected. After this change, a prefix length less than *or* equal to the value is considered a violation of the rule constraint. It also changes the default values for default and newly added rules (disabling any suppression for those). Signed-off-by: NStefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 8月, 2013 1 次提交
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由 Stefan Tomanek 提交于
This change adds the ability to suppress a routing decision based upon the interface group the selected interface belongs to. This allows it to exclude specific devices from a routing decision. Signed-off-by: NStefan Tomanek <stefan.tomanek@wertarbyte.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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