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* tc-testing: updated mirred action tests with batch create/deleteRoman Mashak2019-07-021-0/+94
| | | | | Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/sched: act_mirred: validate the control action inside init()Davide Caratti2019-03-211-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the following script: # tc qdisc add dev crash0 clsact # tc filter add dev crash0 egress matchall \ > action mirred ingress mirror dev lo pass # tc actions replace action mirred \ > ingress mirror dev lo goto chain 42 index 90 cookie c1a0c1a0 # tc actions show action mirred had the following output: Error: Failed to init TC action chain. We have an error talking to the kernel total acts 1 action order 0: mirred (Ingress Mirror to device lo) goto chain 42 index 90 ref 2 bind 1 cookie c1a0c1a0 Then, the first packet transmitted by crash0 made the kernel crash: Mirror/redirect action on BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 #PF error: [normal kernel read fault] PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 3 PID: 47 Comm: kworker/3:1 Not tainted 5.0.0-rc4.gotochain_crash+ #533 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 Workqueue: ipv6_addrconf addrconf_dad_work RIP: 0010:tcf_action_exec+0xb8/0x100 Code: 00 00 00 20 74 1d 83 f8 03 75 09 49 83 c4 08 4d 39 ec 75 bc 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 49 8b 97 a8 00 00 00 <48> 8b 12 48 89 55 00 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 RSP: 0018:ffffa772404b7ad0 EFLAGS: 00010246 RAX: 000000002000002a RBX: ffff9c5afc3f4300 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff9c5afdba9380 RDI: 0000000000029380 RBP: ffffa772404b7b70 R08: ffff9c5af7010028 R09: ffff9c5af7010029 R10: 0000000000000000 R11: ffff9c5af94c6a38 R12: ffff9c5af7953000 R13: ffff9c5af7953008 R14: 0000000000000001 R15: ffff9c5af7953d00 FS: 0000000000000000(0000) GS:ffff9c5afdb80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007c514004 CR4: 00000000001606e0 Call Trace: tcf_classify+0x58/0x120 __dev_queue_xmit+0x40a/0x890 ? ndisc_next_option+0x50/0x50 ? ___neigh_create+0x4d5/0x680 ? ip6_finish_output2+0x1b5/0x590 ip6_finish_output2+0x1b5/0x590 ? ip6_output+0x68/0x110 ip6_output+0x68/0x110 ? nf_hook.constprop.28+0x79/0xc0 ndisc_send_skb+0x248/0x2e0 ndisc_send_ns+0xf8/0x200 ? addrconf_dad_work+0x389/0x4b0 addrconf_dad_work+0x389/0x4b0 ? __switch_to_asm+0x34/0x70 ? process_one_work+0x195/0x380 ? addrconf_dad_completed+0x370/0x370 process_one_work+0x195/0x380 worker_thread+0x30/0x390 ? process_one_work+0x380/0x380 kthread+0x113/0x130 ? kthread_park+0x90/0x90 ret_from_fork+0x35/0x40 Modules linked in: act_mirred veth ip6table_filter ip6_tables iptable_filter binfmt_misc ext4 crct10dif_pclmul snd_hda_codec_generic crc32_pclmul snd_hda_intel snd_hda_codec mbcache ghash_clmulni_intel jbd2 snd_hwdep snd_hda_core snd_seq snd_seq_device snd_pcm aesni_intel snd_timer snd crypto_simd cryptd glue_helper soundcore virtio_balloon joydev pcspkr i2c_piix4 nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs ata_generic pata_acpi qxl drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops virtio_net ttm virtio_blk net_failover virtio_console failover drm ata_piix crc32c_intel virtio_pci serio_raw libata virtio_ring virtio floppy dm_mirror dm_region_hash dm_log dm_mod CR2: 0000000000000000 Validating the control action within tcf_mirred_init() proved to fix the above issue. For the same reason, postpone the assignment of tcfa_action and tcfm_eaction to avoid partial reconfiguration of a mirred rule when it's replaced by another one that mirrors to a device that does not exist. A TDC selftest is added to verify the correct behavior. Fixes: db50514f9a9c ("net: sched: add termination action to allow goto chain") Fixes: 97763dc0f401 ("net_sched: reject unknown tcfa_action values") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tc-testing: flush gact actions on test teardownVlad Buslov2018-08-061-1/+2
| | | | | | | | | | | Test 6fb4 creates one mirred and one pipe action, but only flushes mirred on teardown. Leaking pipe action causes failures in other tests. Add additional teardown command to also flush gact actions. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tc-testing: updated mirred and vlan with more testsRoman Mashak2018-05-161-1/+23
| | | | | | | | | Added extra test cases for different control actions (reclassify, pipe etc.), cookies, max values & exceeding maximum, and replace existing actions unit tests. Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tc-testing: updated police, mirred, skbedit and skbmod with more testsRoman Mashak2018-03-261-0/+192
| | | | | | | | Added extra test cases for control actions (reclassify, pipe etc.), cookies, max index value and police args sanity check. Signed-off-by: Roman Mashak <mrv@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tc-testing: Split test case files into smaller chunksLucas Bates2017-10-151-0/+223
The original submission had the test cases stored in one monolithic file. This can be unwieldy to edit, especially as more test cases are added. This patch removes the original tests.json file in favour of individual ones broken down by category. Signed-off-by: Lucas Bates <lucasb@mojatatu.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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