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* openvswitch: change type of UPCALL_PID attribute to NLA_UNSPECLi RongQing2019-10-051-1/+1
| | | | | | | | | | | | | | | | | | | | | [ Upstream commit ea8564c865299815095bebeb4b25bef474218e4c ] userspace openvswitch patch "(dpif-linux: Implement the API functions to allow multiple handler threads read upcall)" changes its type from U32 to UNSPEC, but leave the kernel unchanged and after kernel 6e237d099fac "(netlink: Relax attr validation for fixed length types)", this bug is exposed by the below warning [ 57.215841] netlink: 'ovs-vswitchd': attribute type 5 has an invalid length. Fixes: 5cd667b0a456 ("openvswitch: Allow each vport to have an array of 'port_id's") Signed-off-by: Li RongQing <lirongqing@baidu.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* openvswitch: Fix conntrack cache with timeoutYi-Hung Wei2019-09-061-0/+13
| | | | | | | | | | | | | | | | | [ Upstream commit 7177895154e6a35179d332f4a584d396c50d0612 ] This patch addresses a conntrack cache issue with timeout policy. Currently, we do not check if the timeout extension is set properly in the cached conntrack entry. Thus, after packet recirculate from conntrack action, the timeout policy is not applied properly. This patch fixes the aforementioned issue. Fixes: 06bd2bdf19d2 ("openvswitch: Add timeout support to ct action") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net: openvswitch: fix csum updates for MPLS actionsJohn Hurley2019-07-281-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ Upstream commit 0e3183cd2a64843a95b62f8bd4a83605a4cf0615 ] Skbs may have their checksum value populated by HW. If this is a checksum calculated over the entire packet then the CHECKSUM_COMPLETE field is marked. Changes to the data pointer on the skb throughout the network stack still try to maintain this complete csum value if it is required through functions such as skb_postpush_rcsum. The MPLS actions in Open vSwitch modify a CHECKSUM_COMPLETE value when changes are made to packet data without a push or a pull. This occurs when the ethertype of the MAC header is changed or when MPLS lse fields are modified. The modification is carried out using the csum_partial function to get the csum of a buffer and add it into the larger checksum. The buffer is an inversion of the data to be removed followed by the new data. Because the csum is calculated over 16 bits and these values align with 16 bits, the effect is the removal of the old value from the CHECKSUM_COMPLETE and addition of the new value. However, the csum fed into the function and the outcome of the calculation are also inverted. This would only make sense if it was the new value rather than the old that was inverted in the input buffer. Fix the issue by removing the bit inverts in the csum_partial calculation. The bug was verified and the fix tested by comparing the folded value of the updated CHECKSUM_COMPLETE value with the folded value of a full software checksum calculation (reset skb->csum to 0 and run skb_checksum_complete(skb)). Prior to the fix the outcomes differed but after they produce the same result. Fixes: 25cd9ba0abc0 ("openvswitch: Add basic MPLS support to kernel") Fixes: bc7cc5999fd3 ("openvswitch: update checksum in {push,pop}_mpls") Signed-off-by: John Hurley <john.hurley@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds2019-06-171-6/+12
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking fixes from David Miller: "Lots of bug fixes here: 1) Out of bounds access in __bpf_skc_lookup, from Lorenz Bauer. 2) Fix rate reporting in cfg80211_calculate_bitrate_he(), from John Crispin. 3) Use after free in psock backlog workqueue, from John Fastabend. 4) Fix source port matching in fdb peer flow rule of mlx5, from Raed Salem. 5) Use atomic_inc_not_zero() in fl6_sock_lookup(), from Eric Dumazet. 6) Network header needs to be set for packet redirect in nfp, from John Hurley. 7) Fix udp zerocopy refcnt, from Willem de Bruijn. 8) Don't assume linear buffers in vxlan and geneve error handlers, from Stefano Brivio. 9) Fix TOS matching in mlxsw, from Jiri Pirko. 10) More SCTP cookie memory leak fixes, from Neil Horman. 11) Fix VLAN filtering in rtl8366, from Linus Walluij. 12) Various TCP SACK payload size and fragmentation memory limit fixes from Eric Dumazet. 13) Use after free in pneigh_get_next(), also from Eric Dumazet. 14) LAPB control block leak fix from Jeremy Sowden" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (145 commits) lapb: fixed leak of control-blocks. tipc: purge deferredq list for each grp member in tipc_group_delete ax25: fix inconsistent lock state in ax25_destroy_timer neigh: fix use-after-free read in pneigh_get_next tcp: fix compile error if !CONFIG_SYSCTL hv_sock: Suppress bogus "may be used uninitialized" warnings be2net: Fix number of Rx queues used for flow hashing net: handle 802.1P vlan 0 packets properly tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() tcp: add tcp_min_snd_mss sysctl tcp: tcp_fragment() should apply sane memory limits tcp: limit payload size of sacked skbs Revert "net: phylink: set the autoneg state in phylink_phy_change" bpf: fix nested bpf tracepoints with per-cpu data bpf: Fix out of bounds memory access in bpf_sk_storage vsock/virtio: set SOCK_DONE on peer shutdown net: dsa: rtl8366: Fix up VLAN filtering net: phylink: set the autoneg state in phylink_phy_change net: add high_order_alloc_disable sysctl/static key tcp: add tcp_tx_skb_cache sysctl ...
| * net: openvswitch: do not free vport if register_netdevice() is failed.Taehee Yoo2019-06-111-6/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to create an internal vport, internal_dev_create() is used and that calls register_netdevice() internally. If register_netdevice() fails, it calls dev->priv_destructor() to free private data of netdev. actually, a private data of this is a vport. Hence internal_dev_create() should not free and use a vport after failure of register_netdevice(). Test command ovs-dpctl add-dp bonding_masters Splat looks like: [ 1035.667767] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 1035.675958] general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC KASAN PTI [ 1035.676916] CPU: 1 PID: 1028 Comm: ovs-vswitchd Tainted: G B 5.2.0-rc3+ #240 [ 1035.676916] RIP: 0010:internal_dev_create+0x2e5/0x4e0 [openvswitch] [ 1035.676916] Code: 48 c1 ea 03 80 3c 02 00 0f 85 9f 01 00 00 4c 8b 23 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 60 05 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 86 01 00 00 49 8b bc 24 60 05 00 00 e8 e4 68 f4 [ 1035.713720] RSP: 0018:ffff88810dcb7578 EFLAGS: 00010206 [ 1035.713720] RAX: dffffc0000000000 RBX: ffff88810d13fe08 RCX: ffffffff84297704 [ 1035.713720] RDX: 00000000000000ac RSI: 0000000000000000 RDI: 0000000000000560 [ 1035.713720] RBP: 00000000ffffffef R08: fffffbfff0d3b881 R09: fffffbfff0d3b881 [ 1035.713720] R10: 0000000000000001 R11: fffffbfff0d3b880 R12: 0000000000000000 [ 1035.768776] R13: 0000607ee460b900 R14: ffff88810dcb7690 R15: ffff88810dcb7698 [ 1035.777709] FS: 00007f02095fc980(0000) GS:ffff88811b400000(0000) knlGS:0000000000000000 [ 1035.777709] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1035.777709] CR2: 00007ffdf01d2f28 CR3: 0000000108258000 CR4: 00000000001006e0 [ 1035.777709] Call Trace: [ 1035.777709] ovs_vport_add+0x267/0x4f0 [openvswitch] [ 1035.777709] new_vport+0x15/0x1e0 [openvswitch] [ 1035.777709] ovs_vport_cmd_new+0x567/0xd10 [openvswitch] [ 1035.777709] ? ovs_dp_cmd_dump+0x490/0x490 [openvswitch] [ 1035.777709] ? __kmalloc+0x131/0x2e0 [ 1035.777709] ? genl_family_rcv_msg+0xa54/0x1030 [ 1035.777709] genl_family_rcv_msg+0x63a/0x1030 [ 1035.777709] ? genl_unregister_family+0x630/0x630 [ 1035.841681] ? debug_show_all_locks+0x2d0/0x2d0 [ ... ] Fixes: cf124db566e6 ("net: Fix inconsistent teardown and release of private netdev state.") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 295Thomas Gleixner2019-06-052-18/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 64 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.894819585@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 269Thomas Gleixner2019-06-0518-252/+18
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 21 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141334.228102212@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 206Thomas Gleixner2019-05-302-8/+2
| | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 107 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528171438.615055994@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner2019-05-301-5/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* openvswitch: Replace removed NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT)Geert Uytterhoeven2019-05-081-2/+2
| | | | | | | | | | | | Commit 4806e975729f99c7 ("netfilter: replace NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT)") removed CONFIG_NF_NAT_NEEDED, but a new user popped up afterwards. Fixes: fec9c271b8f1bde1 ("openvswitch: load and reference the NAT helper.") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Florian Westphal <fw@strlen.de> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller2019-05-051-6/+20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: =================== Netfilter updates for net-next The following batch contains Netfilter updates for net-next, they are: 1) Move nft_expr_clone() to nft_dynset, from Paul Gortmaker. 2) Do not include module.h from net/netfilter/nf_tables.h, also from Paul. 3) Restrict conntrack sysctl entries to boolean, from Tonghao Zhang. 4) Several patches to add infrastructure to autoload NAT helper modules from their respective conntrack helper, this also includes the first client of this code in OVS, patches from Flavio Leitner. 5) Add support to match for conntrack ID, from Brett Mastbergen. 6) Spelling fix in connlabel, from Colin Ian King. 7) Use struct_size() from hashlimit, from Gustavo A. R. Silva. 8) Add optimized version of nf_inet_addr_mask(), from Li RongQing. =================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * openvswitch: load and reference the NAT helper.Flavio Leitner2019-04-301-6/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This improves the original commit 17c357efe5ec ("openvswitch: load NAT helper") where it unconditionally tries to load the module for every flow using NAT, so not efficient when loading multiple flows. It also doesn't hold any references to the NAT module while the flow is active. This change fixes those problems. It will try to load the module only if it's not present. It grabs a reference to the NAT module and holds it while the flow is active. Finally, an error message shows up if either actions above fails. Fixes: 17c357efe5ec ("openvswitch: load NAT helper") Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | openvswitch: check for null pointer return from nla_nest_start_noflagColin Ian King2019-05-051-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | The call to nla_nest_start_noflag can return null in the unlikely event that nla_put returns -EMSGSIZE. Check for this condition to avoid a null pointer dereference on pointer nla_reply. Addresses-Coverity: ("Dereference null return value") Fixes: 11efd5cb04a1 ("openvswitch: Support conntrack zone limit") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Yi-Hung Wei <yihung.wei@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: openvswitch: return an error instead of doing BUG_ON()Eelco Chaudron2019-05-041-2/+5
|/ | | | | | | | | | For all other error cases in queue_userspace_packet() the error is returned, so it makes sense to do the same for these two error cases. Reported-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: Eelco Chaudron <echaudro@redhat.com> Acked-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* genetlink: optionally validate strictly/dumpsJohannes Berg2019-04-273-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add options to strictly validate messages and dump messages, sometimes perhaps validating dump messages non-strictly may be required, so add an option for that as well. Since none of this can really be applied to existing commands, set the options everwhere using the following spatch: @@ identifier ops; expression X; @@ struct genl_ops ops[] = { ..., { .cmd = X, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, ... }, ... }; For new commands one should just not copy the .validate 'opt-out' flags and thus get strict validation. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: make validation more configurable for future strictnessJohannes Berg2019-04-274-11/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently have two levels of strict validation: 1) liberal (default) - undefined (type >= max) & NLA_UNSPEC attributes accepted - attribute length >= expected accepted - garbage at end of message accepted 2) strict (opt-in) - NLA_UNSPEC attributes accepted - attribute length >= expected accepted Split out parsing strictness into four different options: * TRAILING - check that there's no trailing data after parsing attributes (in message or nested) * MAXTYPE - reject attrs > max known type * UNSPEC - reject attributes with NLA_UNSPEC policy entries * STRICT_ATTRS - strictly validate attribute size The default for future things should be *everything*. The current *_strict() is a combination of TRAILING and MAXTYPE, and is renamed to _deprecated_strict(). The current regular parsing has none of this, and is renamed to *_parse_deprecated(). Additionally it allows us to selectively set one of the new flags even on old policies. Notably, the UNSPEC flag could be useful in this case, since it can be arranged (by filling in the policy) to not be an incompatible userspace ABI change, but would then going forward prevent forgetting attribute entries. Similar can apply to the POLICY flag. We end up with the following renames: * nla_parse -> nla_parse_deprecated * nla_parse_strict -> nla_parse_deprecated_strict * nlmsg_parse -> nlmsg_parse_deprecated * nlmsg_parse_strict -> nlmsg_parse_deprecated_strict * nla_parse_nested -> nla_parse_nested_deprecated * nla_validate_nested -> nla_validate_nested_deprecated Using spatch, of course: @@ expression TB, MAX, HEAD, LEN, POL, EXT; @@ -nla_parse(TB, MAX, HEAD, LEN, POL, EXT) +nla_parse_deprecated(TB, MAX, HEAD, LEN, POL, EXT) @@ expression NLH, HDRLEN, TB, MAX, POL, EXT; @@ -nlmsg_parse(NLH, HDRLEN, TB, MAX, POL, EXT) +nlmsg_parse_deprecated(NLH, HDRLEN, TB, MAX, POL, EXT) @@ expression NLH, HDRLEN, TB, MAX, POL, EXT; @@ -nlmsg_parse_strict(NLH, HDRLEN, TB, MAX, POL, EXT) +nlmsg_parse_deprecated_strict(NLH, HDRLEN, TB, MAX, POL, EXT) @@ expression TB, MAX, NLA, POL, EXT; @@ -nla_parse_nested(TB, MAX, NLA, POL, EXT) +nla_parse_nested_deprecated(TB, MAX, NLA, POL, EXT) @@ expression START, MAX, POL, EXT; @@ -nla_validate_nested(START, MAX, POL, EXT) +nla_validate_nested_deprecated(START, MAX, POL, EXT) @@ expression NLH, HDRLEN, MAX, POL, EXT; @@ -nlmsg_validate(NLH, HDRLEN, MAX, POL, EXT) +nlmsg_validate_deprecated(NLH, HDRLEN, MAX, POL, EXT) For this patch, don't actually add the strict, non-renamed versions yet so that it breaks compile if I get it wrong. Also, while at it, make nla_validate and nla_parse go down to a common __nla_validate_parse() function to avoid code duplication. Ultimately, this allows us to have very strict validation for every new caller of nla_parse()/nlmsg_parse() etc as re-introduced in the next patch, while existing things will continue to work as is. In effect then, this adds fully strict validation for any new command. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netlink: make nla_nest_start() add NLA_F_NESTED flagMichal Kubecek2019-04-276-28/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even if the NLA_F_NESTED flag was introduced more than 11 years ago, most netlink based interfaces (including recently added ones) are still not setting it in kernel generated messages. Without the flag, message parsers not aware of attribute semantics (e.g. wireshark dissector or libmnl's mnl_nlmsg_fprintf()) cannot recognize nested attributes and won't display the structure of their contents. Unfortunately we cannot just add the flag everywhere as there may be userspace applications which check nlattr::nla_type directly rather than through a helper masking out the flags. Therefore the patch renames nla_nest_start() to nla_nest_start_noflag() and introduces nla_nest_start() as a wrapper adding NLA_F_NESTED. The calls which add NLA_F_NESTED manually are rewritten to use nla_nest_start(). Except for changes in include/net/netlink.h, the patch was generated using this semantic patch: @@ expression E1, E2; @@ -nla_nest_start(E1, E2) +nla_nest_start_noflag(E1, E2) @@ expression E1, E2; @@ -nla_nest_start_noflag(E1, E2 | NLA_F_NESTED) +nla_nest_start(E1, E2) Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Acked-by: Jiri Pirko <jiri@mellanox.com> Acked-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netfilter: replace NF_NAT_NEEDED with IS_ENABLED(CONFIG_NF_NAT)Florian Westphal2019-04-081-9/+9
| | | | | | | | | NF_NAT_NEEDED is true whenever nat support for either ipv4 or ipv6 is enabled. Now that the af-specific nat configuration switches have been removed, IS_ENABLED(CONFIG_NF_NAT) has the same effect. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2019-04-051-2/+2
|\ | | | | | | | | | | | | | | | | Minor comment merge conflict in mlx5. Staging driver has a fixup due to the skb->xmit_more changes in 'net-next', but was removed in 'net'. Signed-off-by: David S. Miller <davem@davemloft.net>
| * openvswitch: fix flow actions reallocationAndrea Righi2019-03-281-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The flow action buffer can be resized if it's not big enough to contain all the requested flow actions. However, this resize doesn't take into account the new requested size, the buffer is only increased by a factor of 2x. This might be not enough to contain the new data, causing a buffer overflow, for example: [ 42.044472] ============================================================================= [ 42.045608] BUG kmalloc-96 (Not tainted): Redzone overwritten [ 42.046415] ----------------------------------------------------------------------------- [ 42.047715] Disabling lock debugging due to kernel taint [ 42.047716] INFO: 0x8bf2c4a5-0x720c0928. First byte 0x0 instead of 0xcc [ 42.048677] INFO: Slab 0xbc6d2040 objects=29 used=18 fp=0xdc07dec4 flags=0x2808101 [ 42.049743] INFO: Object 0xd53a3464 @offset=2528 fp=0xccdcdebb [ 42.050747] Redzone 76f1b237: cc cc cc cc cc cc cc cc ........ [ 42.051839] Object d53a3464: 6b 6b 6b 6b 6b 6b 6b 6b 0c 00 00 00 6c 00 00 00 kkkkkkkk....l... [ 42.053015] Object f49a30cc: 6c 00 0c 00 00 00 00 00 00 00 00 03 78 a3 15 f6 l...........x... [ 42.054203] Object acfe4220: 20 00 02 00 ff ff ff ff 00 00 00 00 00 00 00 00 ............... [ 42.055370] Object 21024e91: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 42.056541] Object 070e04c3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 42.057797] Object 948a777a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ [ 42.059061] Redzone 8bf2c4a5: 00 00 00 00 .... [ 42.060189] Padding a681b46e: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ Fix by making sure the new buffer is properly resized to contain all the requested data. BugLink: https://bugs.launchpad.net/bugs/1813244 Signed-off-by: Andrea Righi <andrea.righi@canonical.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: use after free in __ovs_ct_free_action()Dan Carpenter2019-04-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | We free "ct_info->ct" and then use it on the next line when we pass it to nf_ct_destroy_timeout(). This patch swaps the order to avoid the use after free. Fixes: 06bd2bdf19d2 ("openvswitch: Add timeout support to ct action") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Yi-Hung Wei <yihung.wei@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: Make metadata_dst tunnel work in IP_TUNNEL_INFO_BRIDGE modewenxu2019-03-291-10/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is currently no support for the multicast/broadcast aspects of VXLAN in ovs. In the datapath flow the tun_dst must specific. But in the IP_TUNNEL_INFO_BRIDGE mode the tun_dst can not be specific. And the packet can forward through the fdb table of vxlan devcice. In this mode the broadcast/multicast packet can be sent through the following ways in ovs. ovs-vsctl add-port br0 vxlan -- set in vxlan type=vxlan \ options:key=1000 options:remote_ip=flow ovs-ofctl add-flow br0 in_port=LOCAL,dl_dst=ff:ff:ff:ff:ff:ff, \ action=output:vxlan bridge fdb append ff:ff:ff:ff:ff:ff dev vxlan_sys_4789 dst 172.168.0.1 \ src_vni 1000 vni 1000 self bridge fdb append ff:ff:ff:ff:ff:ff dev vxlan_sys_4789 dst 172.168.0.2 \ src_vni 1000 vni 1000 self Signed-off-by: wenxu <wenxu@ucloud.cn> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: Add timeout support to ct actionYi-Hung Wei2019-03-281-1/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for fine-grain timeout support to conntrack action. The new OVS_CT_ATTR_TIMEOUT attribute of the conntrack action specifies a timeout to be associated with this connection. If no timeout is specified, it acts as is, that is the default timeout for the connection will be automatically applied. Example usage: $ nfct timeout add timeout_1 inet tcp syn_sent 100 established 200 $ ovs-ofctl add-flow br0 in_port=1,ip,tcp,action=ct(commit,timeout=timeout_1) CC: Pravin Shelar <pshelar@ovn.org> CC: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: openvswitch: Add a new action check_pkt_lenNuman Siddique2019-03-272-0/+219
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new action - 'check_pkt_len' which checks the packet length and executes a set of actions if the packet length is greater than the specified length or executes another set of actions if the packet length is lesser or equal to. This action takes below nlattrs * OVS_CHECK_PKT_LEN_ATTR_PKT_LEN - 'pkt_len' to check for * OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_GREATER - Nested actions to apply if the packet length is greater than the specified 'pkt_len' * OVS_CHECK_PKT_LEN_ATTR_ACTIONS_IF_LESS_EQUAL - Nested actions to apply if the packet length is lesser or equal to the specified 'pkt_len'. The main use case for adding this action is to solve the packet drops because of MTU mismatch in OVN virtual networking solution. When a VM (which belongs to a logical switch of OVN) sends a packet destined to go via the gateway router and if the nic which provides external connectivity, has a lesser MTU, OVS drops the packet if the packet length is greater than this MTU. With the help of this action, OVN will check the packet length and if it is greater than the MTU size, it will generate an ICMP packet (type 3, code 4) and includes the next hop mtu in it so that the sender can fragment the packets. Reported-at: https://mail.openvswitch.org/pipermail/ovs-discuss/2018-July/047039.html Suggested-by: Ben Pfaff <blp@ovn.org> Signed-off-by: Numan Siddique <nusiddiq@redhat.com> CC: Gregory Rose <gvrose8192@gmail.com> CC: Pravin B Shelar <pshelar@ovn.org> Acked-by: Pravin B Shelar <pshelar@ovn.org> Tested-by: Greg Rose <gvrose8192@gmail.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: add seqadj extension when NAT is used.Flavio Leitner2019-03-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the conntrack is initialized, there is no helper attached yet so the nat info initialization (nf_nat_setup_info) skips adding the seqadj ext. A helper is attached later when the conntrack is not confirmed but is going to be committed. In this case, if NAT is needed then adds the seqadj ext as well. Fixes: 16ec3d4fbb96 ("openvswitch: Fix cached ct with helper.") Signed-off-by: Flavio Leitner <fbl@sysclose.org> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | genetlink: make policy common to familyJohannes Berg2019-03-223-20/+6
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since maxattr is common, the policy can't really differ sanely, so make it common as well. The only user that did in fact manage to make a non-common policy is taskstats, which has to be really careful about it (since it's still using a common maxattr!). This is no longer supported, but we can fake it using pre_doit. This reduces the size of e.g. nl80211.o (which has lots of commands): text data bss dec hex filename 398745 14323 2240 415308 6564c net/wireless/nl80211.o (before) 397913 14331 2240 414484 65314 net/wireless/nl80211.o (after) -------------------------------- -832 +8 0 -824 Which is obviously just 8 bytes for each command, and an added 8 bytes for the new policy pointer. I'm not sure why the ops list is counted as .text though. Most of the code transformations were done using the following spatch: @ops@ identifier OPS; expression POLICY; @@ struct genl_ops OPS[] = { ..., { - .policy = POLICY, }, ... }; @@ identifier ops.OPS; expression ops.POLICY; identifier fam; expression M; @@ struct genl_family fam = { .ops = OPS, .maxattr = M, + .policy = POLICY, ... }; This also gets rid of devlink_nl_cmd_region_read_dumpit() accessing the cb->data as ops, which we want to change in a later genl patch. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: openvswitch: fix missing checks for nla_nest_startKangjie Lu2019-03-161-0/+8
| | | | | | | | nla_nest_start may fail and thus deserves a check. The fix returns -EMSGSIZE when it fails. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: openvswitch: fix a NULL pointer dereferenceKangjie Lu2019-03-161-0/+4
| | | | | | | | upcall is dereferenced even when genlmsg_put fails. The fix goto out to avoid the NULL pointer dereference in this case. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: convert to kvmallocKent Overstreet2019-03-124-43/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Patch series "generic radix trees; drop flex arrays". This patch (of 7): There was no real need for this code to be using flexarrays, it's just implementing a hash table - ideally it would be using rhashtables, but that conversion would be significantly more complicated. Link: http://lkml.kernel.org/r/20181217131929.11727-2-kent.overstreet@gmail.com Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Reviewed-by: Matthew Wilcox <willy@infradead.org> Cc: Pravin B Shelar <pshelar@ovn.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Eric Paris <eparis@parisplace.org> Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Paul Moore <paul@paul-moore.com> Cc: Shaohua Li <shli@kernel.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Cc: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* netfilter: nat: remove nf_nat_l3proto.h and nf_nat_core.hFlorian Westphal2019-02-271-3/+1
| | | | | | | | | | | | | | | | | | | | | The l3proto name is gone, its header file is the last trace. While at it, also remove nf_nat_core.h, its very small and all users include nf_nat.h too. before: text data bss dec hex filename 22948 1612 4136 28696 7018 nf_nat.ko after removal of l3proto register/unregister functions: text data bss dec hex filename 22196 1516 4136 27848 6cc8 nf_nat.ko checkpatch complains about overly long lines, but line breaks do not make things more readable and the line length gets smaller here, not larger. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* netfilter: nat: merge nf_nat_ipv4,6 into nat coreFlorian Westphal2019-02-272-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | before: text data bss dec hex filename 16566 1576 4136 22278 5706 nf_nat.ko 3598 844 0 4442 115a nf_nat_ipv6.ko 3187 844 0 4031 fbf nf_nat_ipv4.ko after: text data bss dec hex filename 22948 1612 4136 28696 7018 nf_nat.ko ... with ipv4/v6 nat now provided directly via nf_nat.ko. Also changes: ret = nf_nat_ipv4_fn(priv, skb, state); if (ret != NF_DROP && ret != NF_STOLEN && into if (ret != NF_ACCEPT) return ret; everywhere. The nat hooks never should return anything other than ACCEPT or DROP (and the latter only in rare error cases). The original code uses multi-line ANDing including assignment-in-if: if (ret != NF_DROP && ret != NF_STOLEN && !(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) && (ct = nf_ct_get(skb, &ctinfo)) != NULL) { I removed this while moving, breaking those in separate conditionals and moving the assignments into extra lines. checkpatch still generates some warnings: 1. Overly long lines (of moved code). Breaking them is even more ugly. so I kept this as-is. 2. use of extern function declarations in a .c file. This is necessary evil, we must call nf_nat_l3proto_register() from the nat core now. All l3proto related functions are removed later in this series, those prototypes are then removed as well. v2: keep empty nf_nat_ipv6_csum_update stub for CONFIG_IPV6=n case. v3: remove IS_ENABLED(NF_NAT_IPV4/6) tests, NF_NAT_IPVx toggles are removed here. v4: also get rid of the assignments in conditionals. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller2019-01-281-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: ==================== Netfilter/IPVS updates for net-next The following patchset contains Netfilter/IPVS updates for your net-next tree: 1) Introduce a hashtable to speed up object lookups, from Florian Westphal. 2) Make direct calls to built-in extension, also from Florian. 3) Call helper before confirming the conntrack as it used to be originally, from Florian. 4) Call request_module() to autoload br_netfilter when physdev is used to relax the dependency, also from Florian. 5) Allow to insert rules at a given position ID that is internal to the batch, from Phil Sutter. 6) Several patches to replace conntrack indirections by direct calls, and to reduce modularization, from Florian. This also includes several follow up patches to deal with minor fallout from this rework. 7) Use RCU from conntrack gre helper, from Florian. 8) GRE conntrack module becomes built-in into nf_conntrack, from Florian. 9) Replace nf_ct_invert_tuplepr() by calls to nf_ct_invert_tuple(), from Florian. 10) Unify sysctl handling at the core of nf_conntrack, from Florian. 11) Provide modparam to register conntrack hooks. 12) Allow to match on the interface kind string, from wenxu. 13) Remove several exported symbols, not required anymore now after a bit of de-modulatization work has been done, from Florian. 14) Remove built-in map support in the hash extension, this can be done with the existing userspace infrastructure, from laura. 15) Remove indirection to calculate checksums in IPVS, from Matteo Croce. 16) Use call wrappers for indirection in IPVS, also from Matteo. 17) Remove superfluous __percpu parameter in nft_counter, patch from Luc Van Oostenryck. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * netfilter: conntrack: avoid unneeded nf_conntrack_l4proto lookupsFlorian Westphal2019-01-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | after removal of the packet and invert function pointers, several places do not need to lookup the l4proto structure anymore. Remove those lookups. The function nf_ct_invert_tuplepr becomes redundant, replace it with nf_ct_invert_tuple everywhere. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2019-01-211-1/+1
|\ \ | |/ |/| | | | | | | Completely minor snmp doc conflict. Signed-off-by: David S. Miller <davem@davemloft.net>
| * openvswitch: Avoid OOB read when parsing flow nlattrsRoss Lagerwall2019-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | For nested and variable attributes, the expected length of an attribute is not known and marked by a negative number. This results in an OOB read when the expected length is later used to check if the attribute is all zeros. Fix this by using the actual length of the attribute rather than the expected length. Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: meter: Use struct_size() in kzalloc()Gustavo A. R. Silva2019-01-161-2/+1
|/ | | | | | | | | | | | | | | | | | | | | | | One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; instance = kzalloc(sizeof(struct foo) + count * sizeof(struct boo), GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: Fix IPv6 later frags parsingYi-Hung Wei2019-01-041-3/+5
| | | | | | | | | | | | | | | | | | | The previous commit fa642f08839b ("openvswitch: Derive IP protocol number for IPv6 later frags") introduces IP protocol number parsing for IPv6 later frags that can mess up the network header length calculation logic, i.e. nh_len < 0. However, the network header length calculation is mainly for deriving the transport layer header in the key extraction process which the later fragment does not apply. Therefore, this commit skips the network header length calculation to fix the issue. Reported-by: Chris Mi <chrism@mellanox.com> Reported-by: Greg Rose <gvrose8192@gmail.com> Fixes: fa642f08839b ("openvswitch: Derive IP protocol number for IPv6 later frags") Signed-off-by: Yi-Hung Wei <yihung.wei@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-12-091-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several conflicts, seemingly all over the place. I used Stephen Rothwell's sample resolutions for many of these, if not just to double check my own work, so definitely the credit largely goes to him. The NFP conflict consisted of a bug fix (moving operations past the rhashtable operation) while chaning the initial argument in the function call in the moved code. The net/dsa/master.c conflict had to do with a bug fix intermixing of making dsa_master_set_mtu() static with the fixing of the tagging attribute location. cls_flower had a conflict because the dup reject fix from Or overlapped with the addition of port range classifiction. __set_phy_supported()'s conflict was relatively easy to resolve because Andrew fixed it in both trees, so it was just a matter of taking the net-next copy. Or at least I think it was :-) Joe Stringer's fix to the handling of netns id 0 in bpf_sk_lookup() intermixed with changes on how the sdif and caller_net are calculated in these code paths in net-next. The remaining BPF conflicts were largely about the addition of the __bpf_md_ptr stuff in 'net' overlapping with adjustments and additions to the relevant data structure where the MD pointer macros are used. Signed-off-by: David S. Miller <davem@davemloft.net>
| * openvswitch: fix spelling mistake "execeeds" -> "exceeds"Colin Ian King2018-11-301-1/+1
| | | | | | | | | | | | | | | | There is a spelling mistake in a net_warn_ratelimited message, fix this. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: core: dev: Add extack argument to dev_change_flags()Petr Machata2018-12-063-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to pass extack together with NETDEV_PRE_UP notifications, it's necessary to route the extack to __dev_open() from diverse (possibly indirect) callers. One prominent API through which the notification is invoked is dev_change_flags(). Therefore extend dev_change_flags() with and extra extack argument and update all users. Most of the calls end up just encoding NULL, but several sites (VLAN, ipvlan, VRF, rtnetlink) do have extack available. Since the function declaration line is changed anyway, name the other function arguments to placate checkpatch. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | OVS: remove VLAN_TAG_PRESENT - fixupMichał Mirosław2018-11-101-1/+1
| | | | | | | | | | | | | | | | | | It turns out I missed one VLAN_TAG_PRESENT in OVS code while rebasing. This fixes it. Fixes: 9df46aefafa6 ("OVS: remove use of VLAN_TAG_PRESENT") Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* | OVS: remove use of VLAN_TAG_PRESENTMichał Mirosław2018-11-084-18/+23
| | | | | | | | | | | | | | | | | | This is a minimal change to allow removing of VLAN_TAG_PRESENT. It leaves OVS unable to use CFI bit, as fixing this would need a deeper surgery involving userspace interface. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
* | openvswitch: remove BUG_ON from get_dpdevLi RongQing2018-11-081-1/+0
|/ | | | | | | | if local is NULL pointer, and the following access of local's dev will trigger panic, which is same as BUG_ON Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELSArnd Bergmann2018-11-031-1/+2
| | | | | | | | | | | | | | | When CONFIG_CC_OPTIMIZE_FOR_DEBUGGING is enabled, the compiler fails to optimize out a dead code path, which leads to a link failure: net/openvswitch/conntrack.o: In function `ovs_ct_set_labels': conntrack.c:(.text+0x2e60): undefined reference to `nf_connlabels_replace' In this configuration, we can take a shortcut, and completely remove the contrack label code. This may also help the regular optimization. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: Fix push/pop ethernet validationJaime Caamaño Ruiz2018-10-311-2/+2
| | | | | | | | | | | | | | | When there are both pop and push ethernet header actions among the actions to be applied to a packet, an unexpected EINVAL (Invalid argument) error is obtained. This is due to mac_proto not being reset correctly when those actions are validated. Reported-at: https://mail.openvswitch.org/pipermail/ovs-discuss/2018-October/047554.html Fixes: 91820da6ae85 ("openvswitch: add Ethernet push and pop actions") Signed-off-by: Jaime Caamaño Ruiz <jcaamano@suse.com> Tested-by: Greg Rose <gvrose8192@gmail.com> Reviewed-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller2018-10-081-2/+6
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for your net-next tree: 1) Support for matching on ipsec policy already set in the route, from Florian Westphal. 2) Split set destruction into deactivate and destroy phase to make it fit better into the transaction infrastructure, also from Florian. This includes a patch to warn on imbalance when setting the new activate and deactivate interfaces. 3) Release transaction list from the workqueue to remove expensive synchronize_rcu() from configuration plane path. This speeds up configuration plane quite a bit. From Florian Westphal. 4) Add new xfrm/ipsec extension, this new extension allows you to match for ipsec tunnel keys such as source and destination address, spi and reqid. From Máté Eckl and Florian Westphal. 5) Add secmark support, this includes connsecmark too, patches from Christian Gottsche. 6) Allow to specify remaining bytes in xt_quota, from Chenbo Feng. One follow up patch to calm a clang warning for this one, from Nathan Chancellor. 7) Flush conntrack entries based on layer 3 family, from Kristian Evensen. 8) New revision for cgroups2 to shrink the path field. 9) Get rid of obsolete need_conntrack(), as a result from recent demodularization works. 10) Use WARN_ON instead of BUG_ON, from Florian Westphal. 11) Unused exported symbol in nf_nat_ipv4_fn(), from Florian. 12) Remove superfluous check for timeout netlink parser and dump functions in layer 4 conntrack helpers. 13) Unnecessary redundant rcu read side locks in NAT redirect, from Taehee Yoo. 14) Pass nf_hook_state structure to error handlers, patch from Florian Westphal. 15) Remove ->new() interface from layer 4 protocol trackers. Place them in the ->packet() interface. From Florian. 16) Place conntrack ->error() handling in the ->packet() interface. Patches from Florian Westphal. 17) Remove unused parameter in the pernet initialization path, also from Florian. 18) Remove additional parameter to specify layer 3 protocol when looking up for protocol tracker. From Florian. 19) Shrink array of layer 4 protocol trackers, from Florian. 20) Check for linear skb only once from the ALG NAT mangling codebase, from Taehee Yoo. 21) Use rhashtable_walk_enter() instead of deprecated rhashtable_walk_init(), also from Taehee. 22) No need to flush all conntracks when only one single address is gone, from Tan Hu. 23) Remove redundant check for NAT flags in flowtable code, from Taehee Yoo. 24) Use rhashtable_lookup() instead of rhashtable_lookup_fast() from netfilter codebase, since rcu read lock side is already assumed in this path. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * netfilter: conntrack: pass nf_hook_state to packet and error handlersFlorian Westphal2018-09-201-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | nf_hook_state contains all the hook meta-information: netns, protocol family, hook location, and so on. Instead of only passing selected information, pass a pointer to entire structure. This will allow to merge the error and the packet handlers and remove the ->new() function in followup patches. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2018-10-061-0/+4
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| * | openvswitch: load NAT helperFlavio Leitner2018-10-041-0/+4
| | | | | | | | | | | | | | | | | | | | | Load the respective NAT helper module if the flow uses it. Signed-off-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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