- 16 Oct, 2015 1 commit
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Florian Westphal authored
since commit 8405a8ff ("netfilter: nf_qeueue: Drop queue entries on nf_unregister_hook") all pending queued entries are discarded. So we can simply remove all of the owner handling -- when module is removed it also needs to unregister all its hooks. Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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- 15 Oct, 2015 2 commits
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Pablo Neira authored
Check that dependencies are fulfilled before updating the logger instance, otherwise we can leave things in intermediate state on errors in nfulnl_recv_config(). [ Ken-ichirou reports that this is also fixing missing instance refcnt drop on error introduced in his patch 914eebf2 ("netfilter: nfnetlink_log: autoload nf_conntrack_netlink module NFQA_CFG_F_CONNTRACK config flag"). ] Signed-off-by:
Ken-ichirou MATSUZAWA <chamaken@gmail.com>
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Pablo Neira Ayuso authored
This patch consolidates the check for valid logger instance once we have passed the command handling: The config message that we receive may contain the following info: 1) Command only: We always get a valid instance pointer if we just created it. In case that the instance is being destroyed or the command is unknown, we jump to exit path of nfulnl_recv_config(). This patch doesn't modify this handling. 2) Config only: In this case, the instance must always exist since the user is asking for configuration updates. If the instance doesn't exist this returns -ENODEV. 3) No command and no configs are specified: This case is rare. The user is sending us a config message with neither commands nor config options. In this case, we have to check if the instance exists and bail out otherwise. Before this patch, it was possible to send a config message with no command and no config updates for an unexisting instance without triggering an error. So this is the only case that changes. Signed-off-by:
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- 14 Oct, 2015 2 commits
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Ian Morris authored
Correct whitespace layout of a pointer casting. No changes detected by objdiff. Signed-off-by:
Ian Morris <ipm@chirality.org.uk> Signed-off-by:
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Ian Morris authored
Correct whitespace layout of if statements. No changes detected by objdiff. Signed-off-by:
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- 13 Oct, 2015 6 commits
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Ian Morris authored
Correct whitespace layout of ternary operators in the netfilter-ipv6 code. No changes detected by objdiff. Signed-off-by:
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Ian Morris authored
This patch cleanses whitespace around arithmetical operators. No changes detected by objdiff. Signed-off-by:
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Ian Morris authored
Use tabs instead of spaces to indent code. No changes detected by objdiff. Signed-off-by:
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Ian Morris authored
Use tabs instead of spaces to indent second line of parameters in function definitions. No changes detected by objdiff. Signed-off-by:
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Ian Morris authored
Whitespace cleansing: Labels should not be indented. No changes detected by objdiff. Signed-off-by:
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Florian Westphal authored
Usage of -prev seems buggy. While packet was out our hook cannot be removed but we have no way to know if the previous one is still valid. So better not use ->prev at all. Since NF_REPEAT just asks to invoke same hook function again, just do so, and continue with nf_interate if we get an ACCEPT verdict. A side effect of this change is that if nf_reinject(NF_REPEAT) causes another REPEAT we will now drop the skb instead of a kernel loop. However, NF_REPEAT loops would be a bug so this should not happen anyway. Signed-off-by:
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- 12 Oct, 2015 6 commits
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Ken-ichirou MATSUZAWA authored
This patch enables to load nf_conntrack_netlink module if NFULNL_CFG_F_CONNTRACK config flag is specified. Signed-off-by:
Ken-ichirou MATSUZAWA <chamas@h4.dion.ne.jp> Signed-off-by:
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Arnd Bergmann authored
With the ARM mini2440_defconfig, the bridge netfilter code gets built with both CONFIG_NF_DEFRAG_IPV4 and CONFIG_NF_DEFRAG_IPV6 disabled, which leads to a harmless gcc warning: net/bridge/br_netfilter_hooks.c: In function 'br_nf_dev_queue_xmit': net/bridge/br_netfilter_hooks.c:792:2: warning: label 'drop' defined but not used [-Wunused-label] This gets rid of the warning by cleaning up the code to avoid the respective #ifdefs causing this problem, and replacing them with if(IS_ENABLED()) checks. I have verified that the resulting object code is unchanged, and an additional advantage is that we now get compile coverage of the unused functions in more configurations. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Fixes: dd302b59 ("netfilter: bridge: don't leak skb in error paths") Reviewed-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-nextPablo Neira Ayuso authored
Simon Horman says: ==================== Fourth Round of IPVS Updates for v4.4 please consider these build warning cleanups from David Ahern and myself. They resolve some minor side effects of Eric Biederman' heroic work to cleanup IPVS which you recently pulled: its queued up for v4.4 so no need to worry about earlier kernel versions. ==================== Signed-off-by: -
Pablo Neira Ayuso authored
Make sure kfree_rcu() released objects before leaving the module removal exit path. Signed-off-by: -
Pablo Neira Ayuso authored
The object and module refcounts are updated for each conntrack template, however, if we delete the iptables rules and we flush the timeout database, we may end up with invalid references to timeout object that are just gone. Resolve this problem by setting the timeout reference to NULL when the custom timeout entry is removed from our base. This patch requires some RCU trickery to ensure safe pointer handling. This handling is similar to what we already do with conntrack helpers, the idea is to avoid bumping the timeout object reference counter from the packet path to avoid the cost of atomic ops. Reported-by:
Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
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Pablo Neira Ayuso authored
On success, this shouldn't put back the timeout policy object, otherwise we may have module refcount overflow and we allow deletion of timeout that are still in use. Signed-off-by:
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- 07 Oct, 2015 2 commits
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Simon Horman authored
If CONFIG_PROC_FS is undefined then the arguments of proc_create() and remove_proc_entry() are unused. As a result the net variables of ip_vs_conn_net_{init,cleanup} are unused. net/netfilter/ipvs//ip_vs_conn.c: In function ‘ip_vs_conn_net_init’: net/netfilter/ipvs//ip_vs_conn.c:1350:14: warning: unused variable ‘net’ [-Wunused-variable] net/netfilter/ipvs//ip_vs_conn.c: In function ‘ip_vs_conn_net_cleanup’: net/netfilter/ipvs//ip_vs_conn.c:1361:14: warning: unused variable ‘net’ [-Wunused-variable] ... Resolve this by dereferencing net as needed rather than storing it in a variable. Fixes: 3d993766 ("ipvs: Pass ipvs not net into ip_vs_control_net_(init|cleanup)") Signed-off-by:Simon Horman <horms@verge.net.au> Acked-by:
Julian Anastasov <ja@ssi.bg>
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David Ahern authored
Eric's net namespace changes in 1b75097d leaves net unreferenced if CONFIG_IP_VS_IPV6 is not enabled: ../net/netfilter/ipvs/ip_vs_core.c: In function ‘ip_vs_out’: ../net/netfilter/ipvs/ip_vs_core.c:1177:14: warning: unused variable ‘net’ [-Wunused-variable] After the net refactoring there is only 1 user; push the reference to the 1 user. While the line length slightly exceeds 80 it seems to be the best change. Fixes: 1b75097d("ipvs: Pass ipvs into ip_vs_out") Signed-off-by:
David Ahern <dsa@cumulusnetworks.com> Acked-by:
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- 05 Oct, 2015 7 commits
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Ken-ichirou MATSUZAWA authored
This patch enables to include the conntrack information together with the packet that is sent to user-space via NFLOG, then a user-space program can acquire NATed information by this NFULA_CT attribute. Including the conntrack information is optional, you can set it via NFULNL_CFG_F_CONNTRACK flag with the NFULA_CFG_FLAGS attribute like NFQUEUE. Signed-off-by:
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Ken-ichirou MATSUZAWA authored
get_ct as is and will not update its skb argument, and users of nfnl_ct_hook is currently only nfqueue, we can add const qualifier. Signed-off-by: -
Ken-ichirou MATSUZAWA authored
Conntrack information attaching infrastructure is now generic and update it's name to use `glue' in previous patch. This patch updates Kconfig symbol name and adding NF_CT_NETLINK dependency. Signed-off-by:
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Ken-ichirou MATSUZAWA authored
The idea of this series of patch is to attach conntrack information to nflog like nfqueue has already done. nfqueue conntrack info attaching basis is generic, rename those names to generic one, glue. Signed-off-by:
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Flavio Leitner authored
Remove __nf_conntrack_find() from headers. Fixes: dcd93ed4 ("netfilter: nf_conntrack: remove dead code") Signed-off-by:
Flavio Leitner <fbl@sysclose.org> Signed-off-by:
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Pablo Neira Ayuso authored
The __build_packet_message function fills a nfulnl_msg_packet_timestamp structure that uses 64-bit seconds and is therefore y2038 safe, but it uses an intermediate 'struct timespec' which is not. This trivially changes the code to use 'struct timespec64' instead, to correct the result on 32-bit architectures. This is a copy and paste of Arnd's original patch for nfnetlink_log. Suggested-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs-nextPablo Neira Ayuso authored
Simon Horman says: ==================== Third Round of IPVS Updates for v4.4 please consider this build fix from Eric Biederman which resolves a build problem introduced in is excellent work to cleanup IPVS which you recently pulled: its queued up for v4.4 so no need to worry about earlier kernel versions. I have another minor cleanup, to fix a build warning, pending. However, I wanted to send this one to you now as its hit nf-next, net-next and in turn next, and a slow trickle of bug reports are appearing. ==================== Signed-off-by:
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- 04 Oct, 2015 2 commits
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Pablo Neira Ayuso authored
Now that we have integrated the ct glue code into nfnetlink_queue without introducing dependencies with the conntrack code. Signed-off-by: -
Pablo Neira Ayuso authored
The original intention was to avoid dependencies between nfnetlink_queue and conntrack without ifdef pollution. However, we can achieve this by moving the conntrack dependent code into ctnetlink and keep some glue code to access the nfq_ct indirection from nfqueue. After this patch, the nfq_ct indirection is always compiled in the netfilter core to avoid polluting nfqueue with ifdefs. Thus, if nf_conntrack is not compiled this results in only 8-bytes of memory waste in x86_64. This patch also adds ctnetlink_nfqueue_seqadj() to avoid that the nf_conn structure layout if exposed to nf_queue, which creates another dependency with nf_conntrack at compilation time. Signed-off-by:
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- 03 Oct, 2015 12 commits
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Eric Dumazet authored
Before letting request sockets being put in TCP/DCCP regular ehash table, we need to add either : - SLAB_DESTROY_BY_RCU flag to their kmem_cache - add RCU grace period before freeing them. Since we carefully respected the SLAB_DESTROY_BY_RCU protocol like ESTABLISH and TIMEWAIT sockets, use it here. req_prot_init() being only used by TCP and DCCP, I did not add a new slab_flags into their rsk_prot, but reuse prot->slab_flags Since all reqsk_alloc() users are correctly dealing with a failure, add the __GFP_NOWARN flag to avoid traces under pressure. Fixes: 079096f1 ("tcp/dccp: install syn_recv requests into ehash table") Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queueDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-09-30 This series contains updates to i40e and i40evf only. Vasily Averin provides a couple of rtnl lock/unlock fixes for both i40e and i40evf. Shannon provides several updates and fixes, first fixes up a type clash in i40e_aq_rc_to_posix(), where the error codes are signed values, so we need to treat them as such. Then fixes up a padding issue where an extra byte is added in i40e_aqc_get_cee_dcb_cfg_v1_resp to directly acknowledge the padding. Updated i40e to keep debugfs register read and writes from accessing outside of the io-remapped space. Added support and device id for another 20 GbE device. Jesse fixes the transmit hand workaround code for ARM that was causing Tx hangs to still occur occasionally when there really was no hang. Then fixed the receive dropped counter to show up in netstat interface. Refactor the interrupt enable function since it was always making the caller add the base_vector from the VSI struct which is already passed to the function. Fix kbuild warnings found in 0day build infrastructure by adding a harmless cast to a dev_info(), also fix 32 bit build warnings found by sparse. Greg fixed a configuration error that results if a port VLAN is set for a VF before the VF driver is loaded, so that when the VF driver is loaded the port VLAN is ignored. Mitch fixes the use of QOS field consistently in i40e_ndo_set_vf_port_vlan(). Modified the init timing of the driver to increase stability on load/unload and SR-IOV enable/disable cycles. Anjali updates i40e to not collect VEB stats if they are disabled in the hardware for performance reasons. ==================== Signed-off-by: -
David S. Miller authored
Simon Horman says: ==================== ravb: Add support for r8a7795 SoC please consider this series for net-next. It enhances the ravb driver to support the r8a7795 SoC. Changes: * Dropped RFC prefix * Details in changelog of individual patches Base: * net-next/master Availability: To aid review of this in conjunction with other EtherAVB changes the following branches are available in my renesas tree on kernel.org. * me/r8a7795-ravb-driver-v4: this series * me/r8a7795-ravb-pfc-v2: r8a7795 sh-pfc update for EthernetAVB * me/r8a7795-ravb-integration-v4: enable EthernetAVB on r8a7795 * me/r8a7795-ravb-driver-and-integration-v4.runtime: the above three branches with their runtime dependencies ==================== Signed-off-by: -
Kazuya Mizuguchi authored
This patch supports the r8a7795 SoC by: - Using two interrupts + One for E-MAC + One for everything else + Both can be handled by the existing common interrupt handler, which affords a simpler update to support the new SoC. In future some consideration may be given to implementing multiple interrupt handlers - Limiting the phy speed to 100Mbit/s for the new SoC; at this time it is not clear how this restriction may be lifted but I hope it will be possible as more information comes to light Signed-off-by:Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> [horms: reworked] Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Signed-off-by:
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Kazuya Mizuguchi authored
This patch updates the ravb binding to support the r8a7795 SoC by: - Adding a compat string for the new hardware - Adding 25 named interrupts to binding for the new SoC; older SoCs continue to use a single multiplexed interrupt The example is also updated to reflect the r8a7795 as this is the more complex case. Based on work by Kazuya Mizuguchi and others. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
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Kazuya Mizuguchi authored
This patch is in preparation for using this driver on arm64 where the implementation of __dma_alloc_coherent fails if a device parameter is not provided. Signed-off-by:
Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by:
Masaru Nagai <masaru.nagai.vx@renesas.com> [horms: squashed into a single patch] Signed-off-by:
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Simon Horman authored
Add a helper to allow ethernet drivers to limit the speed of a phy (that they are attached to). This mainly involves factoring out the business-end of of_set_phy_supported() and exporting a new symbol. This code seems to be open coded in several places, in several different variants. It is is envisaged that this will be used in situations where setting the "max-speed" property in DT is not appropriate, e.g. because the maximum speed is not a property of the phy hardware. Signed-off-by:
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David S. Miller authored
Daniel Borkmann says: ==================== BPF updates Some minor updates to {cls,act}_bpf to retrieve routing realms and to make skb->priority writable. Thanks! v1 -> v2: - Dropped preclassify patch for now from the series as the rest is pretty much independent of it - Rest unchanged, only rebased and already posted Acked-by's kept ==================== Signed-off-by: -
Daniel Borkmann authored
{cls,act}_bpf can now set the skb->priority from an eBPF program based on various critera, so that for example classful qdiscs like multiq can update the skb's priority during enqueue time and further push it down into subsequent qdiscs. Signed-off-by:Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@plumgrid.com> Signed-off-by:
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Daniel Borkmann authored
Using routing realms as part of the classifier is quite useful, it can be viewed as a tag for one or multiple routing entries (think of an analogy to net_cls cgroup for processes), set by user space routing daemons or via iproute2 as an indicator for traffic classifiers and later on processed in the eBPF program. Unlike actions, the classifier can inspect device flags and enable netif_keep_dst() if necessary. tc actions don't have that possibility, but in case people know what they are doing, it can be used from there as well (e.g. via devs that must keep dsts by design anyway). If a realm is set, the handler returns the non-zero realm. User space can set the full 32bit realm for the dst. Signed-off-by:
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Daniel Borkmann authored
As we need to add further flags to the bpf_prog structure, lets migrate both bools to a bitfield representation. The size of the base structure (excluding insns) remains unchanged at 40 bytes. Add also tags for the kmemchecker, so that it doesn't throw false positives. Even in case gcc would generate suboptimal code, it's not being accessed in performance critical paths. Signed-off-by:
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David S. Miller authored
Jiri Pirko says: ==================== switchdev: bring back switchdev_obj Second version of the patch extends to a patchset. Basically this patchset brings object structure back which disappeared with recent Vivien's patchset. Also it does a bit of naming changes in order to get the things in line. Also, object id is put back into object structure. Thanks to Scott and Vivien for review and suggestions. ==================== Signed-off-by:
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