Commit Graph

9 Commits

Author SHA1 Message Date
Pedro Tammela
d227cc0b1e selftests/tc-testing: update test definitions for local resources
With resources localized on a per test basis, some tests definitions
either contain redundant commands, were wrong or could be simplified.
Update all of them to match the new requirements.

Tested-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2023-09-28 09:51:07 +02:00
Petr Machata
f132ccc56e selftests: tc-testing: Add a TDC test for pedit munge ip6 dsfield
Add a self-test for the IPv6 dsfield munge that iproute2 will support.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-22 19:48:57 -07:00
Roman Mashak
71c780f119 tc-testing: updated pedit TDC tests
Added tests for u8/u32 clear value, u8/16 retain value, u16/32 invert value,
u8/u16/u32 preserve value and test for negative offsets.

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 11:12:39 -08:00
Roman Mashak
c4917bfc3a tc-testing: fixed two failing pedit tests
Two pedit tests were failing due to incorrect operation
value in matchPattern, should be 'add' not 'val', so fix it.

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-30 12:38:08 -07:00
Roman Mashak
a8fad5459d tc-testing: updated pedit TDC tests
Added test cases for IP header operations:
- set tos/precedence
- add value to tos/precedence
- clear tos/precedence
- invert tos/precedence

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-21 10:38:51 -07:00
Roman Mashak
4980b2c4fe tc-testing: updated pedit test cases
Added TDC test cases for Ethernet LAYERED_OP operations:
- set single source Ethernet MAC
- set single destination Ethernet MAC
- set single invalid destination Ethernet MAC
- set Ethernet type
- invert source/destination/type fields
- add operation on Ethernet type field

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-15 20:35:18 -07:00
Roman Mashak
71229c84aa tc-testing: updated pedit test cases
Added test case for layered IP operation for a single source IP4/IP6
address and a single destination IP4/IP6 address.

Signed-off-by: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
2019-10-10 16:46:04 -07:00
Dmytro Linkin
49b1b4a19c selftests: tc-testing: Add pedit tests
Add 36 pedit action tests to check pedit options described in tc-pedit(8)
man page. Test cases can be specified by categories: actions, pedit,
raw_op, layered_op. RAW_OP cases check offset option for u8, u16 and u32
offset size. LAYERED_OP cases check fields option for eth, ip, ip6,
tcp and udp headers.

Include following tests:
377e - Add pedit action with RAW_OP offset u32
a0ca - Add pedit action with RAW_OP offset u32 (INVALID)
dd8a - Add pedit action with RAW_OP offset u16 u16
53db - Add pedit action with RAW_OP offset u16 (INVALID)
5c7e - Add pedit action with RAW_OP offset u8 add value
2893 - Add pedit action with RAW_OP offset u8 quad
3a07 - Add pedit action with RAW_OP offset u8-u16-u8
ab0f - Add pedit action with RAW_OP offset u16-u8-u8
9d12 - Add pedit action with RAW_OP offset u32 set u16 clear u8 invert
ebfa - Add pedit action with RAW_OP offset overflow u32 (INVALID)
f512 - Add pedit action with RAW_OP offset u16 at offmask shift set
c2cb - Add pedit action with RAW_OP offset u32 retain value
86d4 - Add pedit action with LAYERED_OP eth set src & dst
c715 - Add pedit action with LAYERED_OP eth set src (INVALID)
ba22 - Add pedit action with LAYERED_OP eth type set/clear sequence
5810 - Add pedit action with LAYERED_OP ip set src & dst
1092 - Add pedit action with LAYERED_OP ip set ihl & dsfield
02d8 - Add pedit action with LAYERED_OP ip set ttl & protocol
3e2d - Add pedit action with LAYERED_OP ip set ttl (INVALID)
31ae - Add pedit action with LAYERED_OP ip ttl clear/set
486f - Add pedit action with LAYERED_OP ip set duplicate fields
e790 - Add pedit action with LAYERED_OP ip set ce, df, mf, firstfrag,
nofrag fields
6829 - Add pedit action with LAYERED_OP beyond ip set dport & sport
afd8 - Add pedit action with LAYERED_OP beyond ip set icmp_type &
icmp_code
3143 - Add pedit action with LAYERED_OP beyond ip set dport (INVALID)
fc1f - Add pedit action with LAYERED_OP ip6 set src & dst
6d34 - Add pedit action with LAYERED_OP ip6 dst retain value (INVALID)
6f5e - Add pedit action with LAYERED_OP ip6 flow_lbl
6795 - Add pedit action with LAYERED_OP ip6 set payload_len, nexthdr,
hoplimit
1442 - Add pedit action with LAYERED_OP tcp set dport & sport
b7ac - Add pedit action with LAYERED_OP tcp sport set (INVALID)
cfcc - Add pedit action with LAYERED_OP tcp flags set
3bc4 - Add pedit action with LAYERED_OP tcp set dport, sport & flags
fields
f1c8 - Add pedit action with LAYERED_OP udp set dport & sport
d784 - Add pedit action with mixed RAW/LAYERED_OP #1
70ca - Add pedit action with mixed RAW/LAYERED_OP #2

Signed-off-by: Dmytro Linkin <dmitrolin@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-29 11:15:20 -07:00
Davide Caratti
6ac86ca352 net/sched: act_pedit: validate the control action inside init()
the following script:

 # tc filter add dev crash0 egress matchall \
 > action pedit ex munge ip ttl set 10 pass index 90
 # tc actions replace action pedit \
 > ex munge ip ttl set 10 goto chain 42 index 90 cookie c1a0c1a0
 # tc actions show action pedit

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:  pedit action goto chain 42 keys 1
          index 90 ref 2 bind 1
          key #0  at ipv4+8: val 0a000000 mask 00ffffff
         cookie c1a0c1a0

Then, the first packet transmitted by crash0 made the kernel crash:

 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: 2 PID: 0 Comm: swapper/2 Not tainted 5.0.0-rc4.gotochain_crash+ #533
 Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
 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:ffff94a73db03be0 EFLAGS: 00010246
 RAX: 000000002000002a RBX: ffff94a6ee4c0700 RCX: 000000000000000a
 RDX: 0000000000000000 RSI: ffff94a6ed22c800 RDI: 0000000000000000
 RBP: ffff94a73db03c80 R08: ffff94a7386fa4c8 R09: ffff94a73229ea20
 R10: 0000000000000000 R11: 0000000000000000 R12: ffff94a6ed22cb00
 R13: ffff94a6ed22cb08 R14: 0000000000000001 R15: ffff94a6ed22c800
 FS:  0000000000000000(0000) GS:ffff94a73db00000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000000 CR3: 000000007120e002 CR4: 00000000001606e0
 Call Trace:
  <IRQ>
  tcf_classify+0x58/0x120
  __dev_queue_xmit+0x40a/0x890
  ? ip6_finish_output2+0x369/0x590
  ip6_finish_output2+0x369/0x590
  ? ip6_output+0x68/0x110
  ip6_output+0x68/0x110
  ? nf_hook.constprop.35+0x79/0xc0
  mld_sendpack+0x16f/0x220
  mld_ifc_timer_expire+0x195/0x2c0
  ? igmp6_timer_handler+0x70/0x70
  call_timer_fn+0x2b/0x130
  run_timer_softirq+0x3e8/0x440
  ? tick_sched_timer+0x37/0x70
  __do_softirq+0xe3/0x2f5
  irq_exit+0xf0/0x100
  smp_apic_timer_interrupt+0x6c/0x130
  apic_timer_interrupt+0xf/0x20
  </IRQ>
 RIP: 0010:native_safe_halt+0x2/0x10
 Code: 4e ff ff ff 7f f3 c3 65 48 8b 04 25 00 5c 01 00 f0 80 48 02 20 48 8b 00 a8 08 74 8b eb c1 90 90 90 90 90 90 90 90 90 90 fb f4 <c3> 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 f4 c3 90 90 90 90 90 90
 RSP: 0018:ffffab1740387eb8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
 RAX: ffffffffb18184f0 RBX: 0000000000000002 RCX: 0000000000000001
 RDX: 0000000000000001 RSI: 0000000000000087 RDI: 0000000000000002
 RBP: 0000000000000002 R08: 000f168fa695f9a9 R09: 0000000000000020
 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000000
 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
  ? __sched_text_end+0x1/0x1
  default_idle+0x1c/0x140
  do_idle+0x1c4/0x280
  cpu_startup_entry+0x19/0x20
  start_secondary+0x1a7/0x200
  secondary_startup_64+0xa4/0xb0
 Modules linked in: act_pedit veth ip6table_filter ip6_tables iptable_filter binfmt_misc ext4 mbcache jbd2 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep aesni_intel snd_hda_core crypto_simd snd_seq cryptd glue_helper snd_seq_device snd_pcm joydev snd_timer pcspkr virtio_balloon snd soundcore i2c_piix4 nfsd auth_rpcgss nfs_acl lockd grace sunrpc ip_tables xfs qxl ata_generic pata_acpi drm_kms_helper virtio_net net_failover syscopyarea sysfillrect sysimgblt failover virtio_blk fb_sys_fops virtio_console ttm drm crc32c_intel serio_raw ata_piix virtio_pci libata virtio_ring virtio floppy dm_mirror dm_region_hash dm_log dm_mod
 CR2: 0000000000000000

Validating the control action within tcf_pedit_init() proved to fix the
above issue. A TDC selftest is added to verify the correct behavior.

Fixes: db50514f9a ("net: sched: add termination action to allow goto chain")
Fixes: 97763dc0f4 ("net_sched: reject unknown tcfa_action values")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-21 13:26:41 -07:00