- Linux-kselftest-mirror - lists.linaro.org

[PATCH RFC v3 0/9] tun: Introduce virtio-net hashing feature

by Akihiko Odaki

virtio-net have two usage of hashes: one is RSS and another is hash reporting. Conventionally the hash calculation was done by the VMM. However, computing the hash after the queue was chosen defeats the purpose of RSS. Another approach is to use eBPF steering program. This approach has another downside: it cannot report the calculated hash due to the restrictive nature of eBPF. Introduce the code to compute hashes to the kernel in order to overcome thse challenges. An alternative solution is to extend the eBPF steering program so that it will be able to report to the userspace, but it is based on context rewrites, which is in feature freeze. We can adopt kfuncs, but they will not be UAPIs. We opt to ioctl to align with other relevant UAPIs (KVM and vhost_net). QEMU patched to use this new feature is available at: https://github.com/daynix/qemu/tree/akihikodaki/rss2 The QEMU patches will soon be submitted to the upstream as RFC too. This work will be presented at LPC 2024: https://lpc.events/event/18/contributions/1963/ V1 -> V2: Changed to introduce a new BPF program type. Signed-off-by: Akihiko Odaki <akihiko.odaki(a)daynix.com> --- Changes in v3: - Reverted back to add ioctl. - Split patch "tun: Introduce virtio-net hashing feature" into "tun: Introduce virtio-net hash reporting feature" and "tun: Introduce virtio-net RSS". - Changed to reuse hash values computed for automq instead of performing RSS hashing when hash reporting is requested but RSS is not. - Extracted relevant data from struct tun_struct to keep it minimal. - Added kernel-doc. - Changed to allow calling TUNGETVNETHASHCAP before TUNSETIFF. - Initialized num_buffers with 1. - Added a test case for unclassified packets. - Fixed error handling in tests. - Changed tests to verify that the queue index will not overflow. - Rebased. - Link to v2: https://lore.kernel.org/r/20231015141644.260646-1-akihiko.odaki@daynix.com --- Akihiko Odaki (9): skbuff: Introduce SKB_EXT_TUN_VNET_HASH virtio_net: Add functions for hashing net: flow_dissector: Export flow_keys_dissector_symmetric tap: Pad virtio header with zero tun: Pad virtio header with zero tun: Introduce virtio-net hash reporting feature tun: Introduce virtio-net RSS selftest: tun: Add tests for virtio-net hashing vhost/net: Support VIRTIO_NET_F_HASH_REPORT Documentation/networking/tuntap.rst | 7 + drivers/net/Kconfig | 1 + drivers/net/tap.c | 2 +- drivers/net/tun.c | 255 ++++++++++++-- drivers/vhost/net.c | 16 +- include/linux/skbuff.h | 10 + include/linux/virtio_net.h | 198 +++++++++++ include/net/flow_dissector.h | 1 + include/uapi/linux/if_tun.h | 71 ++++ net/core/flow_dissector.c | 3 +- net/core/skbuff.c | 3 + tools/testing/selftests/net/Makefile | 2 +- tools/testing/selftests/net/tun.c | 666 ++++++++++++++++++++++++++++++++++- 13 files changed, 1195 insertions(+), 40 deletions(-) --- base-commit: 46a0057a5853cbdb58211c19e89ba7777dc6fd50 change-id: 20240403-rss-e737d89efa77 Best regards, -- Akihiko Odaki <akihiko.odaki(a)daynix.com>

1 year, 1 month

4
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[PATCH 1/2] kselftests: mm: Fix wrong __NR_userfaultfd value

by Muhammad Usama Anjum

The value of __NR_userfaultfd was changed to 282 when asm-generic/unistd.h was included. It makes the test to fail every time as the correct number of this syscall on x86_64 is 323. Fix the header to asm/unistd.h. Fixes: a5c6bc590094 ("selftests/mm: remove local __NR_* definitions") Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/mm/pagemap_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c index fc90af2a97b80..bcc73b4e805c6 100644 --- a/tools/testing/selftests/mm/pagemap_ioctl.c +++ b/tools/testing/selftests/mm/pagemap_ioctl.c @@ -15,7 +15,7 @@ #include <sys/ioctl.h> #include <sys/stat.h> #include <math.h> -#include <asm-generic/unistd.h> +#include <asm/unistd.h> #include <pthread.h> #include <sys/resource.h> #include <assert.h> -- 2.39.2

1 year, 1 month

3
13
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[PATCH] lib: math: Move kunit tests into tests/ subdir

by Luis Felipe Hernandez

Cc: linux-kselftest(a)vger.kernel.org, kunit-dev(a)googlegroups.com, skhan(a)linuxfoundation.org, ricardo(a)marliere.net, linux-kernel-mentees(a)lists.linuxfoundation.org This patch is a follow-up task from a discussion stemming from point 3 in a recent patch introducing the int_pow kunit test [1] and documentation regarding kunit test style and nomenclature [2]. Colocate all kunit test suites in lib/math/tests/ and follow the recommended naming convention for files <suite>_kunit.c and kconfig entries CONFIG_<name>_KUNIT_TEST. Link: https://lore.kernel.org/all/CABVgOS=-vh5TqHFCq_jo=ffq8v_nGgr6JsPnOZag3e6+19… [1] Link: https://docs.kernel.org/dev-tools/kunit/style.html [2] Signed-off-by: Luis Felipe Hernandez <luis.hernandez093(a)gmail.com> --- arch/m68k/configs/amiga_defconfig | 2 +- arch/m68k/configs/apollo_defconfig | 2 +- arch/m68k/configs/atari_defconfig | 2 +- arch/m68k/configs/bvme6000_defconfig | 2 +- arch/m68k/configs/hp300_defconfig | 2 +- arch/m68k/configs/mac_defconfig | 2 +- arch/m68k/configs/multi_defconfig | 2 +- arch/m68k/configs/mvme147_defconfig | 2 +- arch/m68k/configs/mvme16x_defconfig | 2 +- arch/m68k/configs/q40_defconfig | 2 +- arch/m68k/configs/sun3_defconfig | 2 +- arch/m68k/configs/sun3x_defconfig | 2 +- arch/powerpc/configs/ppc64_defconfig | 2 +- lib/Kconfig.debug | 6 +++--- lib/math/Makefile | 5 +---- lib/math/tests/Makefile | 5 ++++- lib/math/{test_div64.c => tests/div64_kunit.c} | 0 .../mul_u64_u64_div_u64_kunit.c} | 0 lib/math/{rational-test.c => tests/rational_kunit.c} | 0 19 files changed, 21 insertions(+), 21 deletions(-) rename lib/math/{test_div64.c => tests/div64_kunit.c} (100%) rename lib/math/{test_mul_u64_u64_div_u64.c => tests/mul_u64_u64_div_u64_kunit.c} (100%) rename lib/math/{rational-test.c => tests/rational_kunit.c} (100%) diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index d01dc47d52ea..7ba9311c084c 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -619,7 +619,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 46808e581d7b..273fe4032b85 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -576,7 +576,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index 4469a7839c9d..9976cda99fc1 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -596,7 +596,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index c0719322c028..f59082c8fe06 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -568,7 +568,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index 8d429e63f8f2..6db3556da9ac 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -578,7 +578,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index bafd33da27c1..25c06b5c83ee 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -595,7 +595,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index 6f5ca3f85ea1..35e57e0ee139 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -681,7 +681,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index d16b328c7136..d253b686119a 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -567,7 +567,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 80f6c15a5ed5..62bc6ad63783 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -568,7 +568,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 0e81589f0ee2..caba39c61bac 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -585,7 +585,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 8cd785290339..a348f645ed55 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -565,7 +565,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 78035369f60f..f8b3cfc3275b 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -566,7 +566,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_TEST_DHRY=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_REED_SOLOMON_TEST=m CONFIG_ATOMIC64_SELFTEST=m CONFIG_ASYNC_RAID6_TEST=m diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig index a5e3e7f97f4d..f1f21765c0c1 100644 --- a/arch/powerpc/configs/ppc64_defconfig +++ b/arch/powerpc/configs/ppc64_defconfig @@ -435,7 +435,7 @@ CONFIG_KUNIT=m CONFIG_KUNIT_ALL_TESTS=m CONFIG_LKDTM=m CONFIG_TEST_MIN_HEAP=m -CONFIG_TEST_DIV64=m +CONFIG_DIV64_KUNIT_TEST=m CONFIG_BACKTRACE_SELF_TEST=m CONFIG_TEST_REF_TRACKER=m CONFIG_RBTREE_TEST=m diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index bc8faa4509e1..49807e18b0fc 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -2281,7 +2281,7 @@ config TEST_SORT If unsure, say N. -config TEST_DIV64 +config DIV64_KUNIT_TEST tristate "64bit/32bit division and modulo test" depends on DEBUG_KERNEL || m help @@ -2291,7 +2291,7 @@ config TEST_DIV64 If unsure, say N. -config TEST_MULDIV64 +config MULDIV64_KUNIT_TEST tristate "mul_u64_u64_div_u64() test" depends on DEBUG_KERNEL || m help @@ -3074,7 +3074,7 @@ endmenu # "Rust" endmenu # Kernel hacking -config INT_POW_TEST +config INT_POW_KUNIT_TEST tristate "Integer exponentiation (int_pow) test" if !KUNIT_ALL_TESTS depends on KUNIT default KUNIT_ALL_TESTS diff --git a/lib/math/Makefile b/lib/math/Makefile index 3ef11305f8d2..1c489501ff57 100644 --- a/lib/math/Makefile +++ b/lib/math/Makefile @@ -5,7 +5,4 @@ obj-$(CONFIG_CORDIC) += cordic.o obj-$(CONFIG_PRIME_NUMBERS) += prime_numbers.o obj-$(CONFIG_RATIONAL) += rational.o -obj-$(CONFIG_INT_POW_TEST) += tests/int_pow_kunit.o -obj-$(CONFIG_TEST_DIV64) += test_div64.o -obj-$(CONFIG_TEST_MULDIV64) += test_mul_u64_u64_div_u64.o -obj-$(CONFIG_RATIONAL_KUNIT_TEST) += rational-test.o +obj-y += tests/ diff --git a/lib/math/tests/Makefile b/lib/math/tests/Makefile index 6a169123320a..f9a0a0e6b73a 100644 --- a/lib/math/tests/Makefile +++ b/lib/math/tests/Makefile @@ -1,3 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only -obj-$(CONFIG_INT_POW_TEST) += int_pow_kunit.o +obj-$(CONFIG_DIV64_KUNIT_TEST) += div64_kunit.o +obj-$(CONFIG_INT_POW_KUNIT_TEST) += int_pow_kunit.o +obj-$(CONFIG_MULDIV64_KUNIT_TEST) += mul_u64_u64_div_u64_kunit.o +obj-$(CONFIG_RATIONAL_KUNIT_TEST) += rational_kunit.o diff --git a/lib/math/test_div64.c b/lib/math/tests/div64_kunit.c similarity index 100% rename from lib/math/test_div64.c rename to lib/math/tests/div64_kunit.c diff --git a/lib/math/test_mul_u64_u64_div_u64.c b/lib/math/tests/mul_u64_u64_div_u64_kunit.c similarity index 100% rename from lib/math/test_mul_u64_u64_div_u64.c rename to lib/math/tests/mul_u64_u64_div_u64_kunit.c diff --git a/lib/math/rational-test.c b/lib/math/tests/rational_kunit.c similarity index 100% rename from lib/math/rational-test.c rename to lib/math/tests/rational_kunit.c -- 2.46.1

1 year, 1 month

1
0
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[PATCH v6.11 v5.15 v5.4 v4.19 1/1] selftests: breakpoints: use remaining time to check if suspend succeed

by Yifei Liu

We recently notice that the step_after_suspend_test would fail on our plenty devices. The test believesit failed to enter suspend state with $ sudo ./step_after_suspend_test TAP version 13 Bail out! Failed to enter Suspend state However, in the kernel message, I indeed see the system get suspended and then wake up later. [611172.033108] PM: suspend entry (s2idle) [611172.044940] Filesystems sync: 0.006 seconds [611172.052254] Freezing user space processes [611172.059319] Freezing user space processes completed (elapsed 0.001 seconds) [611172.067920] OOM killer disabled. [611172.072465] Freezing remaining freezable tasks [611172.080332] Freezing remaining freezable tasks completed (elapsed 0.001 seconds) [611172.089724] printk: Suspending console(s) (use no_console_suspend to debug) [611172.117126] serial 00:03: disabled --- some other hardware get reconnected --- [611203.136277] OOM killer enabled. [611203.140637] Restarting tasks ... [611203.141135] usb 1-8.1: USB disconnect, device number 7 [611203.141755] done. [611203.155268] random: crng reseeded on system resumption [611203.162059] PM: suspend exit After investigation, I notice that for the code block if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem")) ksft_exit_fail_msg("Failed to enter Suspend state\n"); The write will return -1 and errno is set to 16 (device busy). It should be caused by the write function is not successfully returned before the system suspend and the return value get messed when waking up. As a result, It may be better to check the time passed of those few instructions to determine whether the suspend is executed correctly for it is pretty hard to execute those few lines for 5 seconds. The timer to wake up the system is set to expired after 5 seconds and no-rearm. If the timer remaining time is 0 second and 0 nano secomd, it means the timer expired and wake the system up. Otherwise, the system could be considered to enter the suspend state failed if there is any remaining time. Fixes: bfd092b8c2728 ("selftests: breakpoint: add step_after_suspend_test") Reported-by: Sinadin Shan <sinadin.shan(a)oracle.com> Signed-off-by: Yifei Liu <yifei.l.liu(a)oracle.com> --- .../testing/selftests/breakpoints/step_after_suspend_test.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c index dfec31fb9b30d..33f5542bf741d 100644 --- a/tools/testing/selftests/breakpoints/step_after_suspend_test.c +++ b/tools/testing/selftests/breakpoints/step_after_suspend_test.c @@ -152,7 +152,10 @@ void suspend(void) if (err < 0) ksft_exit_fail_msg("timerfd_settime() failed\n"); - if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem")) + system("(echo mem > /sys/power/state) 2> /dev/null"); + + timerfd_gettime(timerfd,&spec); + if (spec.it_value.tv_sec != 0 || spec.it_value.tv_nsec != 0) ksft_exit_fail_msg("Failed to enter Suspend state\n"); close(timerfd); -- 2.46.0

1 year, 1 month

2
4
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[PATCH] damon: access_memory_even: remove unused variables

by Ba Jing

These variables are never referenced in the code, just remove it. Signed-off-by: Ba Jing <bajing(a)cmss.chinamobile.com> --- tools/testing/selftests/damon/access_memory_even.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/tools/testing/selftests/damon/access_memory_even.c b/tools/testing/selftests/damon/access_memory_even.c index 3be121487432..a9f4e9aaf3a9 100644 --- a/tools/testing/selftests/damon/access_memory_even.c +++ b/tools/testing/selftests/damon/access_memory_even.c @@ -14,10 +14,8 @@ int main(int argc, char *argv[]) { char **regions; - clock_t start_clock; int nr_regions; int sz_region; - int access_time_ms; int i; if (argc != 3) { -- 2.33.0

1 year, 1 month

3
2
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[RFC PATCH v2 0/3] Allow sk_lookup UDP return traffic to egress when setting src port/address.

by Tiago Lam

Currently, sk_lookup allows an ebpf program to run on the ingress socket lookup path, and accept traffic not only on a range of addresses, but also on a range of ports. At Cloudflare we use sk_lookup for two main cases: 1. Sharing a single port between multiple services - i.e. two services (or more) use disjoint IP ranges but share the same port; 2. Receiving traffic on all ports - i.e. a service which accepts traffic on specific IP ranges but any port [1]. However, one main challenge we face while using sk_lookup for these use cases is how to source return UDP traffic: - On point 1. above, sometimes this range of addresses are not local (i.e. there's no local routes for these in the server), which means we need IP_TRANSPARENT set to be able to egress traffic from addresses we've received traffic on (or simply IP_FREEBIND in the case of IPv6); - And on point 2. above, allowing traffic to a range of ports means a service could get traffic on multiple ports, but currently there's no way to set the source UDP port egress traffic should be sourced from - it's possible to receive the original destination port using the IP_ORIGDSTADDR ancilliary message in recvmsg, but not set it in sendmsg. Both of these limitations can be worked around, but in a sub-optimal way. Using IP_TRANSPARENT, for instance, requires special privileges. And while one could use UDP connected sockets to send return traffic, creating a connected socket for each different address a UDP traffic is received on does have performance implications. Given sk_lookup allows services to accept traffic on a range of addresses or ports, it seems sensible to also allow return traffic to proceed through as well, without needing extra configurations / set ups. This patch sets out to fix both of this issues by: 1. Allowing users to set the src address/port egress traffic should be sent from, when calling sendmsg(); 2. Validating that this egress traffic comes from a socket that matches an ingress socket in sk_lookup. - If it does, traffic is allowed to proceed; - Otherwise it falls back to the regular egress path. The downsides to this is that this runs on the egress hot path, although this work tries to minimise its impact by only performing the reverse socket lookup when necessary (i.e. only when the src address/port are modified). Further performance measurements are to be taken, but we're reaching out early for feedback to see what the technical concerns are and if we can address them. [1] https://blog.cloudflare.com/how-we-built-spectrum/ Suggested-by: Jakub Sitnicki <jakub(a)cloudflare.com> Signed-off-by: Tiago Lam <tiagolam(a)cloudflare.com> --- Changes in v2: - Amended commit messages and cover letter to make the intent and implementation clearer (Willem de Bruijn); - Fixed socket comparison by not using socket cookies and comparing them directly (Eric Dumazet); - Fixed misspellings and checkpatch.pl warnings on line lengths (Simon Horman); - Fixed usage of start_server_addr() and gcc compilation (Philo Lu); - Link to v1: https://lore.kernel.org/r/20240913-reverse-sk-lookup-v1-0-e721ea003d4c@clou… --- Tiago Lam (3): ipv4: Support setting src port in sendmsg(). ipv6: Support setting src port in sendmsg(). bpf: Add sk_lookup test to use ORIGDSTADDR cmsg. include/net/ip.h | 1 + net/ipv4/ip_sockglue.c | 11 +++ net/ipv4/udp.c | 35 +++++++++- net/ipv6/datagram.c | 79 ++++++++++++++++++++++ net/ipv6/udp.c | 8 ++- tools/testing/selftests/bpf/prog_tests/sk_lookup.c | 67 ++++++++++++------ 6 files changed, 176 insertions(+), 25 deletions(-) --- base-commit: 6562a89739bbefddb5495c09aaab67c1c3756f36 change-id: 20240909-reverse-sk-lookup-f7bf36292bc4 Best regards, -- Tiago Lam <tiagolam(a)cloudflare.com>

1 year, 1 month

5
11
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Re: [PATCH 0/2] unicode: kunit: refactor selftest to kunit tests

by Pedro Orlando

+CC linux-kselftest ------- On 22/09/2024 17:16, Gabriela Bittencourt wrote: > Hey all, > > We are making these changes as part of a KUnit Hackathon at LKCamp [1]. > > This patch sets out to refactor fs/unicode/utf8-selftest.c to KUnit tests. > > The first commit is the refactoring itself from self test into KUnit, while > the second one applies the naming style conventions. > > We appreciate any feedback and suggestions. :) > > [1] https://lkcamp.dev/about/ > > Co-developed-by: Pedro Orlando <porlando(a)lkcamp.dev> > Co-developed-by: Danilo Pereira <dpereira(a)lkcamp.dev> > Signed-off-by: Pedro Orlando <porlando(a)lkcamp.dev> > Signed-off-by: Danilo Pereira <dpereira(a)lkcamp.dev> > Signed-off-by: Gabriela Bittencourt <gbittencourt(a)lkcamp.dev> > > Gabriela Bittencourt (2): > unicode: kunit: refactor selftest to kunit tests > unicode: kunit: change tests filename and path > > fs/unicode/Kconfig | 5 +- > fs/unicode/Makefile | 2 +- > fs/unicode/tests/.kunitconfig | 3 + > .../{utf8-selftest.c => tests/utf8_kunit.c} | 152 ++++++++---------- > 4 files changed, 76 insertions(+), 86 deletions(-) > create mode 100644 fs/unicode/tests/.kunitconfig > rename fs/unicode/{utf8-selftest.c => tests/utf8_kunit.c} (63%) >

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[PATCH v6.11 v5.15 v5.4 v4.19 1/1] selftests: breakpoints: use time passed to check if suspend succeed

by Yifei Liu

We recently notice that the step_after_suspend_test would fail on our plenty devices. The test believesit failed to enter suspend state with $ sudo ./step_after_suspend_test TAP version 13 Bail out! Failed to enter Suspend state However, in the kernel message, I indeed see the system get suspended and then wake up later. [611172.033108] PM: suspend entry (s2idle) [611172.044940] Filesystems sync: 0.006 seconds [611172.052254] Freezing user space processes [611172.059319] Freezing user space processes completed (elapsed 0.001 seconds) [611172.067920] OOM killer disabled. [611172.072465] Freezing remaining freezable tasks [611172.080332] Freezing remaining freezable tasks completed (elapsed 0.001 seconds) [611172.089724] printk: Suspending console(s) (use no_console_suspend to debug) [611172.117126] serial 00:03: disabled --- some other hardware get reconnected --- [611203.136277] OOM killer enabled. [611203.140637] Restarting tasks ... [611203.141135] usb 1-8.1: USB disconnect, device number 7 [611203.141755] done. [611203.155268] random: crng reseeded on system resumption [611203.162059] PM: suspend exit After investigation, I notice that for the code block if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem")) ksft_exit_fail_msg("Failed to enter Suspend state\n"); The write will return -1 and errno is set to 16 (device busy). It should be caused by the write function is not successfully returned before the system suspend and the return value get messed when waking up. As a result, It may be better to check the time passed of those few instructions to determine whether the suspend is executed correctly for it is pretty hard to execute those few lines for 4 seconds, or even more if it is not long enough. Fixes: bfd092b8c2728 ("selftests: breakpoint: add step_after_suspend_test") Reported-by: Sinadin Shan <sinadin.shan(a)oracle.com> Signed-off-by: Yifei Liu <yifei.l.liu(a)oracle.com> --- .../selftests/breakpoints/step_after_suspend_test.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c index dfec31fb9b30d..d615f091e5bae 100644 --- a/tools/testing/selftests/breakpoints/step_after_suspend_test.c +++ b/tools/testing/selftests/breakpoints/step_after_suspend_test.c @@ -18,6 +18,7 @@ #include <sys/timerfd.h> #include <sys/types.h> #include <sys/wait.h> +#include <time.h> #include "../kselftest.h" @@ -133,6 +134,7 @@ void suspend(void) int timerfd; int err; struct itimerspec spec = {}; + clock_t t; if (getuid() != 0) ksft_exit_skip("Please run the test as root - Exiting.\n"); @@ -152,8 +154,11 @@ void suspend(void) if (err < 0) ksft_exit_fail_msg("timerfd_settime() failed\n"); - if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem")) - ksft_exit_fail_msg("Failed to enter Suspend state\n"); + t = clock(); + write(power_state_fd, "mem", strlen("mem")); + t = clock()-t; + if ((int)(t) < 4) + ksft_exit_fail_msg("Failed to enter Suspend state %d\n",errno); close(timerfd); close(power_state_fd); -- 2.45.2

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[PATCH v2] kselftests: mm: Fix wrong __NR_userfaultfd value

by Muhammad Usama Anjum

grep -rnIF "#define __NR_userfaultfd" tools/include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282 arch/x86/include/generated/uapi/asm/unistd_32.h:374:#define __NR_userfaultfd 374 arch/x86/include/generated/uapi/asm/unistd_64.h:327:#define __NR_userfaultfd 323 arch/x86/include/generated/uapi/asm/unistd_x32.h:282:#define __NR_userfaultfd (__X32_SYSCALL_BIT + 323) arch/arm/include/generated/uapi/asm/unistd-eabi.h:347:#define __NR_userfaultfd (__NR_SYSCALL_BASE + 388) arch/arm/include/generated/uapi/asm/unistd-oabi.h:359:#define __NR_userfaultfd (__NR_SYSCALL_BASE + 388) include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282 The number is dependent on the architecture. The above data shows that: x86 374 x86_64 323 The value of __NR_userfaultfd was changed to 282 when asm-generic/unistd.h was included. It makes the test to fail every time as the correct number of this syscall on x86_64 is 323. Fix the header to asm/unistd.h. Fixes: a5c6bc590094 ("selftests/mm: remove local __NR_* definitions") Signed-off-by: Muhammad Usama Anjum <usama.anjum(a)collabora.com> --- tools/testing/selftests/mm/pagemap_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c index fc90af2a97b80..bcc73b4e805c6 100644 --- a/tools/testing/selftests/mm/pagemap_ioctl.c +++ b/tools/testing/selftests/mm/pagemap_ioctl.c @@ -15,7 +15,7 @@ #include <sys/ioctl.h> #include <sys/stat.h> #include <math.h> -#include <asm-generic/unistd.h> +#include <asm/unistd.h> #include <pthread.h> #include <sys/resource.h> #include <assert.h> -- 2.39.2

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[PATCH net-next] selftests: net: ioam: add tunsrc support

by Justin Iurman

TL;DR This patch comes from a discussion we had with Jakub and Paolo. This patch updates the IOAM selftests to support the new "tunsrc" feature of IOAM. As a consequence, some changes were required. For example, the IPv6 header must be accessed to check some fields (i.e., the source address for the "tunsrc" feature), which is not possible AFAIK with IPv6 raw sockets. The latter is currently used with IPV6_RECVHOPOPTS and was introduced by commit 187bbb6968af ("selftests: ioam: refactoring to align with the fix") to fix an issue. But, we really need packet sockets actually... which is one of the changes in this patch (see the description of the topology at the top of ioam6.sh for explanations). Another change is that all IPv6 addresses used in the topology are now based on the documentation prefix (2001:db8::/32). Also, the tests have been improved and there are now many more of them. Overall, the script is more robust. The diff is kind of a mess. Since it's "just" a selftests patch, I didn't bother having a series of two patches (one to remove it, one to add the new one back). Let me know if you think it's necessary for readability. Note: this patch needs this [1] iproute2-next patch to be merged (waiting for David to do so, should be done soon). [1] https://patchwork.kernel.org/project/netdevbpf/list/?series=884653 Signed-off-by: Justin Iurman <justin.iurman(a)uliege.be> --- tools/testing/selftests/net/ioam6.sh | 1832 +++++++++++++++----- tools/testing/selftests/net/ioam6_parser.c | 1087 ++++++++---- 2 files changed, 2129 insertions(+), 790 deletions(-) diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh index 12491850ae98..845c26dd01a9 100755 --- a/tools/testing/selftests/net/ioam6.sh +++ b/tools/testing/selftests/net/ioam6.sh @@ -3,119 +3,106 @@ # # Author: Justin Iurman <justin.iurman(a)uliege.be> # -# This script evaluates the IOAM insertion for IPv6 by checking the IOAM data -# consistency directly inside packets on the receiver side. Tests are divided -# into three categories: OUTPUT (evaluates the IOAM processing by the sender), -# INPUT (evaluates the IOAM processing by a receiver) and GLOBAL (evaluates -# wider use cases that do not fall into the other two categories). Both OUTPUT -# and INPUT tests only use a two-node topology (alpha and beta), while GLOBAL -# tests use the entire three-node topology (alpha, beta, gamma). Each test is -# documented inside its own handler in the code below. +# This script evaluates IOAM for IPv6 by checking local IOAM configurations and +# IOAM data inside packets. There are three categories of tests: LOCAL, OUTPUT, +# and INPUT. The former (LOCAL) checks all IOAM related configurations locally +# without sending packets. OUTPUT tests verify the processing of an IOAM +# encapsulating node, while INPUT tests verify the processing of an IOAM transit +# node. Both OUTPUT and INPUT tests send packets. Each test is documented inside +# its own handler. # -# An IOAM domain is configured from Alpha to Gamma but not on the reverse path. -# When either Beta or Gamma is the destination (depending on the test category), -# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop. +# The topology used for OUTPUT and INPUT tests is made of three nodes: +# - Alpha (the IOAM encapsulating node) +# - Beta (the IOAM transit node) +# - Gamma (the receiver) ** # +# An IOAM domain is configured from Alpha to Beta, but not on the reverse path. +# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop. # -# +-------------------+ +-------------------+ -# | | | | -# | Alpha netns | | Gamma netns | -# | | | | -# | +-------------+ | | +-------------+ | -# | | veth0 | | | | veth0 | | -# | | db01::2/64 | | | | db02::2/64 | | -# | +-------------+ | | +-------------+ | -# | . | | . | -# +-------------------+ +-------------------+ -# . . -# . . -# . . -# +----------------------------------------------------+ -# | . . | -# | +-------------+ +-------------+ | -# | | veth0 | | veth1 | | -# | | db01::1/64 | ................ | db02::1/64 | | -# | +-------------+ +-------------+ | -# | | -# | Beta netns | -# | | -# +----------------------------------------------------+ +# ** Gamma is required because ioam6_parser.c uses a packet socket and we need +# to see IOAM data inserted by the very last node (Beta), which would happen +# _after_ we get a copy of the packet on Beta. Note that using an +# IPv6 raw socket with IPV6_RECVHOPOPTS on Beta would not be enough: we also +# need to access the IPv6 header to check some fields (e.g., source and +# destination addresses), which is not possible in that case. As a +# consequence, we need Gamma as a receiver to run ioam6_parser.c which uses a +# packet socket. # # +# +-----------------------+ +-----------------------+ +# | | | | +# | Alpha netns | | Gamma netns | +# | | | | +# | +-------------------+ | | +-------------------+ | +# | | veth0 | | | | veth0 | | +# | | 2001:db8:1::2/64 | | | | 2001:db8:2::2/64 | | +# | +-------------------+ | | +-------------------+ | +# | . | | . | +# +-----------.-----------+ +-----------.-----------+ +# . . +# . . +# . . +# +-----------.----------------------------------.-----------+ +# | . . | +# | +-------------------+ +-------------------+ | +# | | veth0 | | veth1 | | +# | | 2001:db8:1::1/64 | ............ | 2001:db8:2::1/64 | | +# | +-------------------+ +-------------------+ | +# | | +# | Beta netns | +# | | +# +----------------------------------------------------------+ # -# ============================================================= -# | Alpha - IOAM configuration | -# +===========================================================+ -# | Node ID | 1 | -# +-----------------------------------------------------------+ -# | Node Wide ID | 11111111 | -# +-----------------------------------------------------------+ -# | Ingress ID | 0xffff (default value) | -# +-----------------------------------------------------------+ -# | Ingress Wide ID | 0xffffffff (default value) | -# +-----------------------------------------------------------+ -# | Egress ID | 101 | -# +-----------------------------------------------------------+ -# | Egress Wide ID | 101101 | -# +-----------------------------------------------------------+ -# | Namespace Data | 0xdeadbee0 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf00dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 777 | -# +-----------------------------------------------------------+ -# | Schema Data | something that will be 4n-aligned | -# +-----------------------------------------------------------+ # # -# ============================================================= -# | Beta - IOAM configuration | -# +===========================================================+ -# | Node ID | 2 | -# +-----------------------------------------------------------+ -# | Node Wide ID | 22222222 | -# +-----------------------------------------------------------+ -# | Ingress ID | 201 | -# +-----------------------------------------------------------+ -# | Ingress Wide ID | 201201 | -# +-----------------------------------------------------------+ -# | Egress ID | 202 | -# +-----------------------------------------------------------+ -# | Egress Wide ID | 202202 | -# +-----------------------------------------------------------+ -# | Namespace Data | 0xdeadbee1 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf11dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 666 | -# +-----------------------------------------------------------+ -# | Schema Data | Hello there -Obi | -# +-----------------------------------------------------------+ +# +==========================================================+ +# | Alpha - IOAM configuration | +# +=====================+====================================+ +# | Node ID | 1 | +# +---------------------+------------------------------------+ +# | Node Wide ID | 11111111 | +# +---------------------+------------------------------------+ +# | Ingress ID | 0xffff (default value) | +# +---------------------+------------------------------------+ +# | Ingress Wide ID | 0xffffffff (default value) | +# +---------------------+------------------------------------+ +# | Egress ID | 101 | +# +---------------------+------------------------------------+ +# | Egress Wide ID | 101101 | +# +---------------------+------------------------------------+ +# | Namespace Data | 0xdeadbeef | +# +---------------------+------------------------------------+ +# | Namespace Wide Data | 0xcafec0caf00dc0de | +# +---------------------+------------------------------------+ +# | Schema ID | 777 | +# +---------------------+------------------------------------+ +# | Schema Data | something that will be 4n-aligned | +# +---------------------+------------------------------------+ # # -# ============================================================= -# | Gamma - IOAM configuration | -# +===========================================================+ -# | Node ID | 3 | -# +-----------------------------------------------------------+ -# | Node Wide ID | 33333333 | -# +-----------------------------------------------------------+ -# | Ingress ID | 301 | -# +-----------------------------------------------------------+ -# | Ingress Wide ID | 301301 | -# +-----------------------------------------------------------+ -# | Egress ID | 0xffff (default value) | -# +-----------------------------------------------------------+ -# | Egress Wide ID | 0xffffffff (default value) | -# +-----------------------------------------------------------+ -# | Namespace Data | 0xdeadbee2 | -# +-----------------------------------------------------------+ -# | Namespace Wide Data | 0xcafec0caf22dc0de | -# +-----------------------------------------------------------+ -# | Schema ID | 0xffffff (= None) | -# +-----------------------------------------------------------+ -# | Schema Data | | -# +-----------------------------------------------------------+ +# +==========================================================+ +# | Beta - IOAM configuration | +# +=====================+====================================+ +# | Node ID | 2 | +# +---------------------+------------------------------------+ +# | Node Wide ID | 22222222 | +# +---------------------+------------------------------------+ +# | Ingress ID | 201 | +# +---------------------+------------------------------------+ +# | Ingress Wide ID | 201201 | +# +---------------------+------------------------------------+ +# | Egress ID | 202 | +# +---------------------+------------------------------------+ +# | Egress Wide ID | 202202 | +# +---------------------+------------------------------------+ +# | Namespace Data | 0xffffffff (default value) | +# +---------------------+------------------------------------+ +# | Namespace Wide Data | 0xffffffffffffffff (default value) | +# +---------------------+------------------------------------+ +# | Schema ID | 0xffffff (= None) | +# +---------------------+------------------------------------+ +# | Schema Data | | +# +---------------------+------------------------------------+ source lib.sh @@ -128,64 +115,69 @@ source lib.sh ################################################################################ ALPHA=( - 1 # ID - 11111111 # Wide ID - 0xffff # Ingress ID - 0xffffffff # Ingress Wide ID - 101 # Egress ID - 101101 # Egress Wide ID - 0xdeadbee0 # Namespace Data - 0xcafec0caf00dc0de # Namespace Wide Data - 777 # Schema ID (0xffffff = None) - "something that will be 4n-aligned" # Schema Data + 1 # ID + 11111111 # Wide ID + 0xffff # Ingress ID (default value) + 0xffffffff # Ingress Wide ID (default value) + 101 # Egress ID + 101101 # Egress Wide ID + 0xdeadbeef # Namespace Data + 0xcafec0caf00dc0de # Namespace Wide Data + 777 # Schema ID + "something that will be 4n-aligned" # Schema Data ) BETA=( - 2 - 22222222 - 201 - 201201 - 202 - 202202 - 0xdeadbee1 - 0xcafec0caf11dc0de - 666 - "Hello there -Obi" + 2 # ID + 22222222 # Wide ID + 201 # Ingress ID + 201201 # Ingress Wide ID + 202 # Egress ID + 202202 # Egress Wide ID + 0xffffffff # Namespace Data (empty value) + 0xffffffffffffffff # Namespace Wide Data (empty value) + 0xffffff # Schema ID (empty value) + "" # Schema Data (empty value) ) -GAMMA=( - 3 - 33333333 - 301 - 301301 - 0xffff - 0xffffffff - 0xdeadbee2 - 0xcafec0caf22dc0de - 0xffffff - "" -) +TESTS_LOCAL=" + local_sysctl_ioam_id + local_sysctl_ioam_id_wide + local_sysctl_ioam_intf_id + local_sysctl_ioam_intf_id_wide + local_sysctl_ioam_intf_enabled + local_ioam_namespace + local_ioam_schema + local_ioam_schema_namespace + local_route_ns + local_route_tunsrc + local_route_tundst + local_route_trace_type + local_route_trace_size + local_route_trace_type_bits + local_route_trace_size_values +" TESTS_OUTPUT=" - out_undef_ns - out_no_room - out_bits - out_full_supp_trace + output_undef_ns + output_no_room + output_no_room_oss + output_bits + output_sizes + output_full_supp_trace " TESTS_INPUT=" - in_undef_ns - in_no_room - in_oflag - in_bits - in_full_supp_trace + input_undef_ns + input_no_room + input_no_room_oss + input_disabled + input_oflag + input_bits + input_sizes + input_full_supp_trace " -TESTS_GLOBAL=" - fwd_full_supp_trace -" - - ################################################################################ # # # LIBRARY # @@ -194,66 +186,64 @@ TESTS_GLOBAL=" check_kernel_compatibility() { - setup_ns ioam_tmp_node - ip link add name veth0 netns $ioam_tmp_node type veth \ - peer name veth1 netns $ioam_tmp_node + setup_ns ioam_tmp_node &>/dev/null + local ret=$? - ip -netns $ioam_tmp_node link set veth0 up - ip -netns $ioam_tmp_node link set veth1 up + ip link add name veth0 netns $ioam_tmp_node type veth \ + peer name veth1 netns $ioam_tmp_node &>/dev/null + ret=$((ret + $?)) - ip -netns $ioam_tmp_node ioam namespace add 0 - ns_ad=$? + ip -netns $ioam_tmp_node link set veth0 up &>/dev/null + ret=$((ret + $?)) - ip -netns $ioam_tmp_node ioam namespace show | grep -q "namespace 0" - ns_sh=$? + ip -netns $ioam_tmp_node link set veth1 up &>/dev/null + ret=$((ret + $?)) - if [[ $ns_ad != 0 || $ns_sh != 0 ]] + if [ $ret != 0 ] then - echo "SKIP: kernel version probably too old, missing ioam support" - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + echo "SKIP: Setup failed." + cleanup_ns $ioam_tmp_node exit $ksft_skip fi - ip -netns $ioam_tmp_node route add db02::/64 encap ioam6 mode inline \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 - tr_ad=$? + ip -netns $ioam_tmp_node route add 2001:db8:2::/64 \ + encap ioam6 trace prealloc type 0x800000 ns 0 size 4 dev veth0 &>/dev/null + ret=$? - ip -netns $ioam_tmp_node -6 route | grep -q "encap ioam6" - tr_sh=$? + ip -netns $ioam_tmp_node -6 route 2>/dev/null | grep -q "encap ioam6" + ret=$((ret + $?)) - if [[ $tr_ad != 0 || $tr_sh != 0 ]] + if [ $ret != 0 ] then - echo "SKIP: cannot attach an ioam trace to a route, did you compile" \ - "without CONFIG_IPV6_IOAM6_LWTUNNEL?" - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + echo "SKIP: Cannot attach an IOAM trace to a route. Was your kernel" \ + "compiled without CONFIG_IPV6_IOAM6_LWTUNNEL? Are you running an" \ + "old kernel? Are you using an old version of iproute2?" + cleanup_ns $ioam_tmp_node exit $ksft_skip fi - ip link del veth0 2>/dev/null || true - cleanup_ns $ioam_tmp_node || true + cleanup_ns $ioam_tmp_node - lsmod | grep -q "ip6_tunnel" + lsmod 2>/dev/null | grep -q "ip6_tunnel" ip6tnl_loaded=$? - if [ $ip6tnl_loaded = 0 ] + if [ $ip6tnl_loaded == 0 ] then encap_tests=0 else modprobe ip6_tunnel &>/dev/null - lsmod | grep -q "ip6_tunnel" + lsmod 2>/dev/null | grep -q "ip6_tunnel" encap_tests=$? if [ $encap_tests != 0 ] then - ip a | grep -q "ip6tnl0" + ip a 2>/dev/null | grep -q "ip6tnl0" encap_tests=$? if [ $encap_tests != 0 ] then echo "Note: ip6_tunnel not found neither as a module nor inside the" \ - "kernel, tests that require it (encap mode) will be omitted" + "kernel. Any tests that require it will be skipped." fi fi fi @@ -261,477 +251,1400 @@ check_kernel_compatibility() cleanup() { - ip link del ioam-veth-alpha 2>/dev/null || true - ip link del ioam-veth-gamma 2>/dev/null || true - - cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma || true + cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma if [ $ip6tnl_loaded != 0 ] then - modprobe -r ip6_tunnel 2>/dev/null || true + modprobe -r ip6_tunnel &>/dev/null fi } setup() { - setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma + setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma &>/dev/null ip link add name ioam-veth-alpha netns $ioam_node_alpha type veth \ - peer name ioam-veth-betaL netns $ioam_node_beta + peer name ioam-veth-betaL netns $ioam_node_beta &>/dev/null ip link add name ioam-veth-betaR netns $ioam_node_beta type veth \ - peer name ioam-veth-gamma netns $ioam_node_gamma - - ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 - ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 - ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 - ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 - - ip -netns $ioam_node_alpha addr add db01::2/64 dev veth0 - ip -netns $ioam_node_alpha link set veth0 up - ip -netns $ioam_node_alpha link set lo up - ip -netns $ioam_node_alpha route add db02::/64 via db01::1 dev veth0 - ip -netns $ioam_node_alpha route del db01::/64 - ip -netns $ioam_node_alpha route add db01::/64 dev veth0 - - ip -netns $ioam_node_beta addr add db01::1/64 dev veth0 - ip -netns $ioam_node_beta addr add db02::1/64 dev veth1 - ip -netns $ioam_node_beta link set veth0 up - ip -netns $ioam_node_beta link set veth1 up - ip -netns $ioam_node_beta link set lo up - - ip -netns $ioam_node_gamma addr add db02::2/64 dev veth0 - ip -netns $ioam_node_gamma link set veth0 up - ip -netns $ioam_node_gamma link set lo up - ip -netns $ioam_node_gamma route add db01::/64 via db02::1 dev veth0 - - # - IOAM config - - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} - ip netns exec $ioam_node_alpha sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} - ip -netns $ioam_node_alpha ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} - ip -netns $ioam_node_alpha ioam schema add ${ALPHA[8]} "${ALPHA[9]}" - ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} - - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.all.forwarding=1 - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id=${BETA[0]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} - ip -netns $ioam_node_beta ioam namespace add 123 data ${BETA[6]} wide ${BETA[7]} - ip -netns $ioam_node_beta ioam schema add ${BETA[8]} "${BETA[9]}" - ip -netns $ioam_node_beta ioam namespace set 123 schema ${BETA[8]} - - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id=${GAMMA[0]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.ioam6_id_wide=${GAMMA[1]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id=${GAMMA[2]} - ip netns exec $ioam_node_gamma sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${GAMMA[3]} - ip -netns $ioam_node_gamma ioam namespace add 123 data ${GAMMA[6]} wide ${GAMMA[7]} + peer name ioam-veth-gamma netns $ioam_node_gamma &>/dev/null + + ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 &>/dev/null + ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 &>/dev/null + ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 &>/dev/null + ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 &>/dev/null + + ip -netns $ioam_node_alpha addr add 2001:db8:1::50/64 dev veth0 &>/dev/null + ip -netns $ioam_node_alpha addr add 2001:db8:1::2/64 dev veth0 &>/dev/null + ip -netns $ioam_node_alpha link set veth0 up &>/dev/null + ip -netns $ioam_node_alpha link set lo up &>/dev/null + ip -netns $ioam_node_alpha route add 2001:db8:2::/64 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + ip -netns $ioam_node_beta addr add 2001:db8:1::1/64 dev veth0 &>/dev/null + ip -netns $ioam_node_beta addr add 2001:db8:2::1/64 dev veth1 &>/dev/null + ip -netns $ioam_node_beta link set veth0 up &>/dev/null + ip -netns $ioam_node_beta link set veth1 up &>/dev/null + ip -netns $ioam_node_beta link set lo up &>/dev/null + + ip -netns $ioam_node_gamma addr add 2001:db8:2::2/64 dev veth0 &>/dev/null + ip -netns $ioam_node_gamma link set veth0 up &>/dev/null + ip -netns $ioam_node_gamma link set lo up &>/dev/null + ip -netns $ioam_node_gamma route add 2001:db8:1::/64 \ + via 2001:db8:2::1 dev veth0 &>/dev/null + + # - Alpha: IOAM config - + ip netns exec $ioam_node_alpha \ + sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} &>/dev/null + ip netns exec $ioam_node_alpha \ + sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} &>/dev/null + ip netns exec $ioam_node_alpha \ + sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} &>/dev/null + ip netns exec $ioam_node_alpha \ + sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} &>/dev/null + ip -netns $ioam_node_alpha \ + ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null + ip -netns $ioam_node_alpha \ + ioam schema add ${ALPHA[8]} "${ALPHA[9]}" &>/dev/null + ip -netns $ioam_node_alpha \ + ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null + + # - Beta: IOAM config - + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.all.forwarding=1 &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.ioam6_id=${BETA[0]} &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} &>/dev/null + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} &>/dev/null + ip -netns $ioam_node_beta ioam namespace add 123 &>/dev/null sleep 1 - ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 db02::2 &>/dev/null + ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 2001:db8:2::2 &>/dev/null if [ $? != 0 ] then - echo "Setup FAILED" - cleanup &>/dev/null - exit 0 + echo "SKIP: Setup failed." + cleanup + exit $ksft_skip fi } log_test_passed() { - local desc=$1 - printf "TEST: %-60s [ OK ]\n" "${desc}" + printf " - TEST: %-57s [ OK ]\n" "$1" + npassed=$((npassed+1)) } -log_test_failed() +log_test_skipped() { - local desc=$1 - printf "TEST: %-60s [FAIL]\n" "${desc}" + printf " - TEST: %-57s [SKIP]\n" "$1" + nskipped=$((nskipped+1)) } -log_results() +log_test_failed() { - echo "- Tests passed: ${npassed}" - echo "- Tests failed: ${nfailed}" + printf " - TEST: %-57s [FAIL]\n" "$1" + nfailed=$((nfailed+1)) } run_test() { local name=$1 local desc=$2 - local node_src=$3 - local node_dst=$4 - local ip6_dst=$5 - local trace_type=$6 - local ioam_ns=$7 - local type=$8 - - ip netns exec $node_dst ./ioam6_parser $name $trace_type $ioam_ns $type & + local ip6_src=$3 + local trace_type=$4 + local trace_size=$5 + local ioam_ns=$6 + local type=$7 + + ip netns exec $ioam_node_gamma \ + ./ioam6_parser veth0 $name $ip6_src 2001:db8:2::2 \ + $trace_type $trace_size $ioam_ns $type & local spid=$! sleep 0.1 - ip netns exec $node_src ping6 -t 64 -c 1 -W 1 $ip6_dst &>/dev/null + ip netns exec $ioam_node_alpha ping6 -t 64 -c 1 -W 1 2001:db8:2::2 &>/dev/null if [ $? != 0 ] then - nfailed=$((nfailed+1)) log_test_failed "${desc}" kill -2 $spid &>/dev/null else wait $spid - if [ $? = 0 ] - then - npassed=$((npassed+1)) - log_test_passed "${desc}" - else - nfailed=$((nfailed+1)) - log_test_failed "${desc}" - fi + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" fi } run() { + local test + + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" + echo + printf "| %-28s LOCAL tests %-29s |" echo - printf "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "OUTPUT tests" - printf "%0.s-" {1..74} + + echo + echo "Global config" + for test in $TESTS_LOCAL + do + $test + done + + echo + echo "Inline mode" + for test in $TESTS_LOCAL + do + $test "inline" + done + + echo + echo "Encap mode" + for test in $TESTS_LOCAL + do + $test "encap" + done + + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" + echo + printf "| %-28s OUTPUT tests %-28s |" + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" echo # set OUTPUT settings - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null - for t in $TESTS_OUTPUT + echo + echo "Inline mode" + for test in $TESTS_OUTPUT do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" + $test "inline" done - # clean OUTPUT settings - ip netns exec $ioam_node_beta sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 - ip -netns $ioam_node_alpha route change db01::/64 dev veth0 + echo + echo "Encap mode" + for test in $TESTS_OUTPUT + do + $test "encap" + done + echo + echo "Encap mode (with tunsrc)" + for test in $TESTS_OUTPUT + do + $test "encap" "tunsrc" + done + + # clean OUTPUT settings + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null echo - printf "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "INPUT tests" - printf "%0.s-" {1..74} + printf "| %-28s INPUT tests %-29s |" + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" echo # set INPUT settings - ip -netns $ioam_node_alpha ioam namespace del 123 + ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null - for t in $TESTS_INPUT + echo + echo "Inline mode" + for test in $TESTS_INPUT do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" + $test "inline" + done + + echo + echo "Encap mode" + for test in $TESTS_INPUT + do + $test "encap" done # clean INPUT settings - ip -netns $ioam_node_alpha ioam namespace add 123 \ - data ${ALPHA[6]} wide ${ALPHA[7]} - ip -netns $ioam_node_alpha ioam namespace set 123 schema ${ALPHA[8]} - ip -netns $ioam_node_alpha route change db01::/64 dev veth0 + ip -netns $ioam_node_alpha \ + ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null + ip -netns $ioam_node_alpha \ + ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null echo - printf "%0.s-" {1..74} + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - echo "GLOBAL tests" - printf "%0.s-" {1..74} + printf "| %-30s Results %-31s |" + echo + printf "+" + printf "%0.s-" {1..72} + printf "+" echo - for t in $TESTS_GLOBAL - do - $t "inline" - [ $encap_tests = 0 ] && $t "encap" - done - echo - log_results + echo "- Passed: ${npassed}" + echo "- Skipped: ${nskipped}" + echo "- Failed: ${nfailed}" + echo } bit2type=( 0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000 0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100 - 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 + 0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 0x000001 ) -bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 ) +bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 0 ) ################################################################################ # # -# OUTPUT tests # +# LOCAL tests # # # -# Two nodes (sender/receiver), IOAM disabled on ingress for the receiver. # ################################################################################ -out_undef_ns() +local_sysctl_ioam_id() +{ + ############################################################################## + # Make sure the sysctl "net.ipv6.ioam6_id" works as expected. # + ############################################################################## + local desc="Sysctl net.ipv6.ioam6_id" + + [ ! -z $1 ] && return + + ip netns exec $ioam_node_alpha \ + sysctl net.ipv6.ioam6_id 2>/dev/null | grep -wq ${ALPHA[0]} + + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} + +local_sysctl_ioam_id_wide() { ############################################################################## - # Make sure that the encap node won't fill the trace if the chosen IOAM # - # namespace is not configured locally. # + # Make sure the sysctl "net.ipv6.ioam6_id_wide" works as expected. # ############################################################################## - local desc="Unknown IOAM namespace" + local desc="Sysctl net.ipv6.ioam6_id_wide" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + [ ! -z $1 ] && return - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 + ip netns exec $ioam_node_alpha \ + sysctl net.ipv6.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[1]} - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0x800000 0 $1 + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down +local_sysctl_ioam_intf_id() +{ + ############################################################################## + # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id" works as expected. # + ############################################################################## + local desc="Sysctl net.ipv6.conf.XX.ioam6_id" + + [ ! -z $1 ] && return + + ip netns exec $ioam_node_alpha \ + sysctl net.ipv6.conf.veth0.ioam6_id 2>/dev/null | grep -wq ${ALPHA[4]} + + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" } -out_no_room() +local_sysctl_ioam_intf_id_wide() { ############################################################################## - # Make sure that the encap node won't fill the trace and will set the # - # Overflow flag since there is no room enough for its data. # + # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id_wide" works as expected. # ############################################################################## - local desc="Missing trace room" + local desc="Sysctl net.ipv6.conf.XX.ioam6_id_wide" + + [ ! -z $1 ] && return + + ip netns exec $ioam_node_alpha \ + sysctl net.ipv6.conf.veth0.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[5]} + + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up +local_sysctl_ioam_intf_enabled() +{ + ############################################################################## + # Make sure the sysctl "net.ipv6.conf.XX.ioam6_enabled" works as expected. # + ############################################################################## + local desc="Sysctl net.ipv6.conf.XX.ioam6_enabled" - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + [ ! -z $1 ] && return - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + ip netns exec $ioam_node_beta \ + sysctl net.ipv6.conf.veth0.ioam6_enabled 2>/dev/null | grep -wq 1 - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" } -out_bits() +local_ioam_namespace() { ############################################################################## - # Make sure that, for each trace type bit, the encap node will either: # - # (i) fill the trace with its data when it is a supported bit # - # (ii) not fill the trace with its data when it is an unsupported bit # + # Make sure the creation of an IOAM Namespace works as expected. # ############################################################################## - local desc="Trace type with bit <n> only" + local desc="Create an IOAM Namespace" - local tmp=${bit2size[22]} - bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) + [ ! -z $1 ] && return - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq 123 + local ret=$? - for i in {0..22} - do - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ - dev veth0 &>/dev/null + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq ${ALPHA[6]} + ret=$((ret + $?)) - local cmd_res=$? - local descr="${desc/<n>/$i}" + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq ${ALPHA[7]} + ret=$((ret + $?)) + + [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} + +local_ioam_schema() +{ + ############################################################################## + # Make sure the creation of an IOAM Schema works as expected. # + ############################################################################## + local desc="Create an IOAM Schema" + + [ ! -z $1 ] && return + + ip -netns $ioam_node_alpha \ + ioam schema show 2>/dev/null | grep -wq ${ALPHA[8]} + local ret=$? + + local sc_data=$( + for i in `seq 0 $((${#ALPHA[9]}-1))` + do + chr=${ALPHA[9]:i:1} + printf "%x " "'${chr}" + done + ) + + ip -netns $ioam_node_alpha \ + ioam schema show 2>/dev/null | grep -q "$sc_data" + ret=$((ret + $?)) + + [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} + +local_ioam_schema_namespace() +{ + ############################################################################## + # Make sure the binding of a Schema to a Namespace works as expected. # + ############################################################################## + local desc="Bind an IOAM Schema to an IOAM Namespace" + + [ ! -z $1 ] && return + + ip -netns $ioam_node_alpha \ + ioam namespace show 2>/dev/null | grep -wq ${ALPHA[8]} + local ret=$? + + ip -netns $ioam_node_alpha \ + ioam schema show 2>/dev/null | grep -wq 123 + ret=$((ret + $?)) + + [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}" +} + +local_route_ns() +{ + ############################################################################## + # Make sure the Namespace-ID is always provided, whatever the mode. # + ############################################################################## + local desc="Mandatory Namespace-ID" + local mode + + [ -z $1 ] && return + + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret1=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret2=$? + + [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null +} + +local_route_tunsrc() +{ + ############################################################################## + # Make sure the Tunnel Source is only (and possibly) used with encap mode. # + ############################################################################## + local desc + local mode + local mode_tunsrc - if [[ $i -ge 12 && $i -le 21 ]] + [ -z $1 ] && return + + if [ "$1" == "encap" ] + then + desc="Optional Tunnel Source" + mode="$1 tundst 2001:db8:2::2" + mode_tunsrc="$1 tunsrc 2001:db8:1::50 tundst 2001:db8:2::2" + else + desc="Unneeded Tunnel Source" + mode="$1" + mode_tunsrc="$1 tunsrc 2001:db8:1::50" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret1=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode_tunsrc trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret2=$? + + if [ "$1" == "encap" ] + then + [[ $ret1 != 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + else + [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null +} + +local_route_tundst() +{ + ############################################################################## + # Make sure the Tunnel Destination is only (and always) used with encap mode.# + ############################################################################## + local desc + + [ -z $1 ] && return + + [ "$1" == "encap" ] && desc="Mandatory Tunnel Destination" \ + || desc="Unneeded Tunnel Destination" + + local mode="$1" + local mode_tundst="$1 tundst 2001:db8:2::2" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret1=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode_tundst trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret2=$? + + if [ "$1" == "encap" ] + then + [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + else + [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null +} + +local_route_trace_type() +{ + ############################################################################## + # Make sure the Trace Type is always provided, whatever the mode. # + ############################################################################## + local desc="Mandatory Trace Type" + local mode + + [ -z $1 ] && return + + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret1=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret2=$? + + [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null +} + +local_route_trace_size() +{ + ############################################################################## + # Make sure the Trace Size is always provided, whatever the mode. # + ############################################################################## + local desc="Mandatory Trace Size" + local mode + + [ -z $1 ] && return + + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret1=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + local ret2=$? + + [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \ + || log_test_passed "${desc}" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null +} + +local_route_trace_type_bits() +{ + ############################################################################## + # Make sure only allowed bits (0-11 and 22) are accepted. # + ############################################################################## + local desc="Trace Type bits" + local mode + + [ -z $1 ] && return + + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" + + local i + for i in {0..23} + do + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type ${bit2type[$i]} ns 0 size 4 \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [[ ($? == 0 && (($i -ge 12 && $i -le 21) || $i == 23)) || + ($? != 0 && (($i -ge 0 && $i -le 11) || $i == 22)) ]] then - if [ $cmd_res != 0 ] - then - npassed=$((npassed+1)) - log_test_passed "$descr ($1 mode)" - else - nfailed=$((nfailed+1)) - log_test_failed "$descr ($1 mode)" - fi - else - run_test "out_bit$i" "$descr ($1 mode)" $ioam_node_alpha \ - $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 + local err=1 + break fi done - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}" - bit2size[22]=$tmp + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null } -out_full_supp_trace() +local_route_trace_size_values() { ############################################################################## - # Make sure that the encap node will correctly fill a full trace. Be careful,# - # "full trace" here does NOT mean all bits (only supported ones). # + # Make sure only allowed sizes (multiples of four in [4,244]) are accepted. # ############################################################################## - local desc="Full supported trace" + local desc="Trace Size values" + local mode - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + [ -z $1 ] && return - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 100 dev veth0 + [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1" - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xfff002 123 $1 + # we also try the next multiple of four after the MAX to check it's refused + local i + for i in {0..248} + do + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size $i \ + via 2001:db8:1::1 dev veth0 &>/dev/null - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + if [[ ($? == 0 && ($i == 0 || $i == 248 || $(( $i % 4 )) != 0)) || + ($? != 0 && $i != 0 && $i != 248 && $(( $i % 4 )) == 0) ]] + then + local err=1 + break + fi + done + + [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}" + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null } ################################################################################ # # -# INPUT tests # +# OUTPUT tests # # # -# Two nodes (sender/receiver), the sender MUST NOT fill the trace upon # -# insertion -> the IOAM namespace configured on the sender is removed # -# and is used in the inserted trace to force the sender not to fill it. # ################################################################################ -in_undef_ns() +output_undef_ns() { ############################################################################## - # Make sure that the receiving node won't fill the trace if the related IOAM # - # namespace is not configured locally. # + # Make sure an IOAM encapsulating node does NOT fill the trace when the # + # corresponding IOAM Namespace-ID is not configured locally. # ############################################################################## - local desc="Unknown IOAM namespace" + local desc="Unknown IOAM Namespace-ID" + local ns=0 + local tr_type=0x800000 + local tr_size=4 + local mode="$1" + local saddr="2001:db8:1::2" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0x800000 ns 0 size 4 dev veth0 + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0x800000 0 $1 + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } -in_no_room() +output_no_room() { ############################################################################## - # Make sure that the receiving node won't fill the trace and will set the # - # Overflow flag if there is no room enough for its data. # + # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the # + # Overflow flag when there is not enough room for its data. # ############################################################################## - local desc="Missing trace room" + local desc="Missing room for data" + local ns=123 + local tr_type=0xc00000 + local tr_size=4 + local mode="$1" + local saddr="2001:db8:1::2" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } -in_bits() +output_no_room_oss() { ############################################################################## - # Make sure that, for each trace type bit, the receiving node will either: # - # (i) fill the trace with its data when it is a supported bit # - # (ii) not fill the trace with its data when it is an unsupported bit # + # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the # + # Overflow flag when there is not enough room for the Opaque State Snapshot. # ############################################################################## - local desc="Trace type with bit <n> only" + local desc="Missing room for Opaque State Snapshot" + local ns=123 + local tr_type=0x000002 + local tr_size=4 + local mode="$1" + local saddr="2001:db8:1::2" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi - local tmp=${bit2size[22]} - bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +output_bits() +{ + ############################################################################## + # Make sure an IOAM encapsulating node implements all supported bits by # + # checking it correctly fills the trace with its data. # + ############################################################################## + local desc="Trace Type with supported bit <n> only" + local ns=123 + local mode="$1" + local saddr="2001:db8:1::2" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + if [ "$1" == "encap" ] + then + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + local tmp=${bit2size[22]} + bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) + local i for i in {0..11} {22..22} do - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type ${bit2type[$i]} ns 123 size ${bit2size[$i]} \ - dev veth0 + local descr="${desc/<n>/$i}" + + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - run_test "in_bit$i" "${desc/<n>/$i} ($1 mode)" $ioam_node_alpha \ - $ioam_node_beta db01::1 ${bit2type[$i]} 123 $1 + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc \ + type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test "output_bit$i" "${descr}" $saddr \ + ${bit2type[$i]} ${bit2size[$i]} $ns $1 + else + log_test_failed "${descr}" + fi done - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null bit2size[22]=$tmp } -in_oflag() +output_sizes() { ############################################################################## - # Make sure that the receiving node won't fill the trace since the Overflow # - # flag is set. # + # Make sure an IOAM encapsulating node allocates supported sizes correctly. # ############################################################################## - local desc="Overflow flag is set" + local desc="Trace Size of <n> bytes" + local ns=0 + local tr_type=0x800000 + local mode="$1" + local saddr="2001:db8:1::2" - # Exception: - # Here, we need the sender to set the Overflow flag. For that, we will add - # back the IOAM namespace that was previously configured on the sender. - ip -netns $ioam_node_alpha ioam namespace add 123 + if [ "$1" == "encap" ] + then + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xc00000 ns 123 size 4 dev veth0 + local i + for i in $(seq 4 4 244) + do + local descr="${desc/<n>/$i}" - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xc00000 123 $1 + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \ + via 2001:db8:1::1 dev veth0 &>/dev/null - # And we clean the exception for this test to get things back to normal for - # other INPUT tests - ip -netns $ioam_node_alpha ioam namespace del 123 + if [ $? == 0 ] + then + run_test "output_size$i" "${descr}" $saddr $tr_type $i $ns $1 + else + log_test_failed "${descr}" + fi + done + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } -in_full_supp_trace() +output_full_supp_trace() { ############################################################################## - # Make sure that the receiving node will correctly fill a full trace. Be # - # careful, "full trace" here does NOT mean all bits (only supported ones). # + # Make sure an IOAM encapsulating node correctly fills a trace when all # + # supported bits are set. # ############################################################################## local desc="Full supported trace" + local ns=123 + local tr_type=0xfff002 + local tr_size + local mode="$1" + local saddr="2001:db8:1::2" - [ "$1" = "encap" ] && mode="$1 tundst db01::1" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 up + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi - ip -netns $ioam_node_alpha route change db01::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 80 dev veth0 + if [ "$2" == "tunsrc" ] + then + saddr="2001:db8:1::50" + mode+=" tunsrc 2001:db8:1::50" + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_beta \ - db01::1 0xfff002 123 $1 + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - [ "$1" = "encap" ] && ip -netns $ioam_node_beta link set ip6tnl0 down + local i + tr_size=$(( ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) )) + for i in {0..11} {22..22} + do + tr_size=$((tr_size + bit2size[$i])) + done + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } ################################################################################ # # -# GLOBAL tests # +# INPUT tests # # # -# Three nodes (sender/router/receiver), IOAM fully enabled on every node. # ################################################################################ -fwd_full_supp_trace() +input_undef_ns() +{ + ############################################################################## + # Make sure an IOAM node does NOT fill the trace when the corresponding IOAM # + # Namespace-ID is not configured locally. # + ############################################################################## + local desc="Unknown IOAM Namespace-ID" + local ns=0 + local tr_type=0x800000 + local tr_size=4 + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_no_room() +{ + ############################################################################## + # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag # + # when there is not enough room for its data. # + ############################################################################## + local desc="Missing room for data" + local ns=123 + local tr_type=0xc00000 + local tr_size=4 + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_no_room_oss() +{ + ############################################################################## + # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag # + # when there is not enough room for the Opaque State Snapshot. # + ############################################################################## + local desc="Missing room for Opaque State Snapshot" + local ns=123 + local tr_type=0x000002 + local tr_size=4 + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_disabled() +{ + ############################################################################## + # Make sure an IOAM node does NOT fill the trace when IOAM is not enabled on # + # the corresponding (ingress) interface. # + ############################################################################## + local desc="IOAM disabled on ingress interface" + local ns=123 + local tr_type=0x800000 + local tr_size=4 + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + # Exception: disable IOAM on ingress interface + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null + local ret=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + ret=$((ret + $?)) + + if [ $ret == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + # Clean Exception + ip netns exec $ioam_node_beta \ + sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_oflag() +{ + ############################################################################## + # Make sure an IOAM node does NOT fill the trace when the Overflow flag is # + # set. # + ############################################################################## + local desc="Overflow flag is set" + local ns=123 + local tr_type=0xc00000 + local tr_size=4 + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + # Exception: + # Here, we need the sender to set the Overflow flag. For that, we will add + # back the IOAM namespace that was previously configured on the sender. + ip -netns $ioam_node_alpha ioam namespace add 123 &>/dev/null + local ret=$? + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + ret=$((ret + $?)) + + if [ $ret == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + # Clean Exception + ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_bits() +{ + ############################################################################## + # Make sure an IOAM node implements all supported bits by checking it # + # correctly fills the trace with its data. # + ############################################################################## + local desc="Trace Type with supported bit <n> only" + local ns=123 + local mode="$1" + + if [ "$1" == "encap" ] + then + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + local tmp=${bit2size[22]} + bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) + + local i + for i in {0..11} {22..22} + do + local descr="${desc/<n>/$i}" + + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc \ + type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test "input_bit$i" "${descr}" 2001:db8:1::2 \ + ${bit2type[$i]} ${bit2size[$i]} $ns $1 + else + log_test_failed "${descr}" + fi + done + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null + + bit2size[22]=$tmp +} + +input_sizes() { ############################################################################## - # Make sure that all three nodes correctly filled the full supported trace # - # by checking that the trace data is consistent with the predefined config. # + # Make sure an IOAM node handles all supported sizes correctly. # ############################################################################## - local desc="Forward - Full supported trace" + local desc="Trace Size of <n> bytes" + local ns=123 + local tr_type=0x800000 + local mode="$1" + + if [ "$1" == "encap" ] + then + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi - [ "$1" = "encap" ] && mode="$1 tundst db02::2" || mode="$1" - [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 up + local i + for i in $(seq 4 4 244) + do + local descr="${desc/<n>/$i}" - ip -netns $ioam_node_alpha route change db02::/64 encap ioam6 mode $mode \ - trace prealloc type 0xfff002 ns 123 size 244 via db01::1 dev veth0 + if [[ "$1" == "encap" && $encap_tests != 0 ]] + then + log_test_skipped "${descr}" + continue + fi - run_test ${FUNCNAME[0]} "${desc} ($1 mode)" $ioam_node_alpha $ioam_node_gamma \ - db02::2 0xfff002 123 $1 + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \ + via 2001:db8:1::1 dev veth0 &>/dev/null - [ "$1" = "encap" ] && ip -netns $ioam_node_gamma link set ip6tnl0 down + if [ $? == 0 ] + then + run_test "input_size$i" "${descr}" 2001:db8:1::2 $tr_type $i $ns $1 + else + log_test_failed "${descr}" + fi + done + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null +} + +input_full_supp_trace() +{ + ############################################################################## + # Make sure an IOAM node correctly fills a trace when all supported bits are # + # set. # + ############################################################################## + local desc="Full supported trace" + local ns=123 + local tr_type=0xfff002 + local tr_size + local mode="$1" + + if [ "$1" == "encap" ] + then + if [ $encap_tests != 0 ] + then + log_test_skipped "${desc}" + return + fi + + mode+=" tundst 2001:db8:2::2" + ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null + fi + + local i + tr_size=$(( ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) )) + for i in {0..11} {22..22} + do + tr_size=$((tr_size + bit2size[$i])) + done + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 \ + encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \ + via 2001:db8:1::1 dev veth0 &>/dev/null + + if [ $? == 0 ] + then + run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1 + else + log_test_failed "${desc}" + fi + + ip -netns $ioam_node_alpha \ + route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null + + [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \ + link set ip6tnl0 down &>/dev/null } @@ -742,30 +1655,29 @@ fwd_full_supp_trace() ################################################################################ npassed=0 +nskipped=0 nfailed=0 if [ "$(id -u)" -ne 0 ] then - echo "SKIP: Need root privileges" + echo "SKIP: Need root privileges." exit $ksft_skip fi if [ ! -x "$(command -v ip)" ] then - echo "SKIP: Could not run test without ip tool" - exit $ksft_skip -fi - -ip ioam &>/dev/null -if [ $? = 1 ] -then - echo "SKIP: iproute2 too old, missing ioam command" + echo "SKIP: Could not run test without ip tool." exit $ksft_skip fi check_kernel_compatibility - -cleanup &>/dev/null setup run -cleanup &>/dev/null +cleanup + +if [ $nfailed != 0 ] +then + exit $ksft_fail +fi + +exit $ksft_pass diff --git a/tools/testing/selftests/net/ioam6_parser.c b/tools/testing/selftests/net/ioam6_parser.c index 895e5bb5044b..de4b5c9e8a74 100644 --- a/tools/testing/selftests/net/ioam6_parser.c +++ b/tools/testing/selftests/net/ioam6_parser.c @@ -8,8 +8,10 @@ #include <errno.h> #include <limits.h> #include <linux/const.h> +#include <linux/if_ether.h> #include <linux/ioam6.h> #include <linux/ipv6.h> +#include <stdbool.h> #include <stdlib.h> #include <string.h> #include <unistd.h> @@ -40,7 +42,7 @@ static struct ioam_config node1 = { .egr_id = 101, .ingr_wide = 0xffffffff, /* default value */ .egr_wide = 101101, - .ns_data = 0xdeadbee0, + .ns_data = 0xdeadbeef, .ns_wide = 0xcafec0caf00dc0de, .sc_id = 777, .sc_data = "something that will be 4n-aligned", @@ -54,33 +56,22 @@ static struct ioam_config node2 = { .egr_id = 202, .ingr_wide = 201201, .egr_wide = 202202, - .ns_data = 0xdeadbee1, - .ns_wide = 0xcafec0caf11dc0de, - .sc_id = 666, - .sc_data = "Hello there -Obi", - .hlim = 63, -}; - -static struct ioam_config node3 = { - .id = 3, - .wide = 33333333, - .ingr_id = 301, - .egr_id = 0xffff, /* default value */ - .ingr_wide = 301301, - .egr_wide = 0xffffffff, /* default value */ - .ns_data = 0xdeadbee2, - .ns_wide = 0xcafec0caf22dc0de, + .ns_data = 0xffffffff, /* default value */ + .ns_wide = 0xffffffffffffffff, /* default value */ .sc_id = 0xffffff, /* default value */ .sc_data = NULL, - .hlim = 62, + .hlim = 63, }; enum { /********** * OUTPUT * **********/ + __TEST_OUT_MIN, + TEST_OUT_UNDEF_NS, TEST_OUT_NO_ROOM, + TEST_OUT_NO_ROOM_OSS, TEST_OUT_BIT0, TEST_OUT_BIT1, TEST_OUT_BIT2, @@ -94,13 +85,80 @@ enum { TEST_OUT_BIT10, TEST_OUT_BIT11, TEST_OUT_BIT22, + TEST_OUT_SIZE4, + TEST_OUT_SIZE8, + TEST_OUT_SIZE12, + TEST_OUT_SIZE16, + TEST_OUT_SIZE20, + TEST_OUT_SIZE24, + TEST_OUT_SIZE28, + TEST_OUT_SIZE32, + TEST_OUT_SIZE36, + TEST_OUT_SIZE40, + TEST_OUT_SIZE44, + TEST_OUT_SIZE48, + TEST_OUT_SIZE52, + TEST_OUT_SIZE56, + TEST_OUT_SIZE60, + TEST_OUT_SIZE64, + TEST_OUT_SIZE68, + TEST_OUT_SIZE72, + TEST_OUT_SIZE76, + TEST_OUT_SIZE80, + TEST_OUT_SIZE84, + TEST_OUT_SIZE88, + TEST_OUT_SIZE92, + TEST_OUT_SIZE96, + TEST_OUT_SIZE100, + TEST_OUT_SIZE104, + TEST_OUT_SIZE108, + TEST_OUT_SIZE112, + TEST_OUT_SIZE116, + TEST_OUT_SIZE120, + TEST_OUT_SIZE124, + TEST_OUT_SIZE128, + TEST_OUT_SIZE132, + TEST_OUT_SIZE136, + TEST_OUT_SIZE140, + TEST_OUT_SIZE144, + TEST_OUT_SIZE148, + TEST_OUT_SIZE152, + TEST_OUT_SIZE156, + TEST_OUT_SIZE160, + TEST_OUT_SIZE164, + TEST_OUT_SIZE168, + TEST_OUT_SIZE172, + TEST_OUT_SIZE176, + TEST_OUT_SIZE180, + TEST_OUT_SIZE184, + TEST_OUT_SIZE188, + TEST_OUT_SIZE192, + TEST_OUT_SIZE196, + TEST_OUT_SIZE200, + TEST_OUT_SIZE204, + TEST_OUT_SIZE208, + TEST_OUT_SIZE212, + TEST_OUT_SIZE216, + TEST_OUT_SIZE220, + TEST_OUT_SIZE224, + TEST_OUT_SIZE228, + TEST_OUT_SIZE232, + TEST_OUT_SIZE236, + TEST_OUT_SIZE240, + TEST_OUT_SIZE244, TEST_OUT_FULL_SUPP_TRACE, + __TEST_OUT_MAX, + /********* * INPUT * *********/ + __TEST_IN_MIN, + TEST_IN_UNDEF_NS, TEST_IN_NO_ROOM, + TEST_IN_NO_ROOM_OSS, + TEST_IN_DISABLED, TEST_IN_OFLAG, TEST_IN_BIT0, TEST_IN_BIT1, @@ -115,36 +173,107 @@ enum { TEST_IN_BIT10, TEST_IN_BIT11, TEST_IN_BIT22, + TEST_IN_SIZE4, + TEST_IN_SIZE8, + TEST_IN_SIZE12, + TEST_IN_SIZE16, + TEST_IN_SIZE20, + TEST_IN_SIZE24, + TEST_IN_SIZE28, + TEST_IN_SIZE32, + TEST_IN_SIZE36, + TEST_IN_SIZE40, + TEST_IN_SIZE44, + TEST_IN_SIZE48, + TEST_IN_SIZE52, + TEST_IN_SIZE56, + TEST_IN_SIZE60, + TEST_IN_SIZE64, + TEST_IN_SIZE68, + TEST_IN_SIZE72, + TEST_IN_SIZE76, + TEST_IN_SIZE80, + TEST_IN_SIZE84, + TEST_IN_SIZE88, + TEST_IN_SIZE92, + TEST_IN_SIZE96, + TEST_IN_SIZE100, + TEST_IN_SIZE104, + TEST_IN_SIZE108, + TEST_IN_SIZE112, + TEST_IN_SIZE116, + TEST_IN_SIZE120, + TEST_IN_SIZE124, + TEST_IN_SIZE128, + TEST_IN_SIZE132, + TEST_IN_SIZE136, + TEST_IN_SIZE140, + TEST_IN_SIZE144, + TEST_IN_SIZE148, + TEST_IN_SIZE152, + TEST_IN_SIZE156, + TEST_IN_SIZE160, + TEST_IN_SIZE164, + TEST_IN_SIZE168, + TEST_IN_SIZE172, + TEST_IN_SIZE176, + TEST_IN_SIZE180, + TEST_IN_SIZE184, + TEST_IN_SIZE188, + TEST_IN_SIZE192, + TEST_IN_SIZE196, + TEST_IN_SIZE200, + TEST_IN_SIZE204, + TEST_IN_SIZE208, + TEST_IN_SIZE212, + TEST_IN_SIZE216, + TEST_IN_SIZE220, + TEST_IN_SIZE224, + TEST_IN_SIZE228, + TEST_IN_SIZE232, + TEST_IN_SIZE236, + TEST_IN_SIZE240, + TEST_IN_SIZE244, TEST_IN_FULL_SUPP_TRACE, - /********** - * GLOBAL * - **********/ - TEST_FWD_FULL_SUPP_TRACE, + __TEST_IN_MAX, __TEST_MAX, }; -static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, - __u32 trace_type, __u16 ioam_ns) +static int check_header(int tid, struct ioam6_trace_hdr *trace, + __u32 trace_type, __u8 trace_size, __u16 ioam_ns) { - if (__be16_to_cpu(ioam6h->namespace_id) != ioam_ns || - __be32_to_cpu(ioam6h->type_be32) != (trace_type << 8)) + if (__be16_to_cpu(trace->namespace_id) != ioam_ns || + __be32_to_cpu(trace->type_be32) != (trace_type << 8)) return 1; switch (tid) { case TEST_OUT_UNDEF_NS: case TEST_IN_UNDEF_NS: - return ioam6h->overflow || - ioam6h->nodelen != 1 || - ioam6h->remlen != 1; + case TEST_IN_DISABLED: + return trace->overflow == 1 || + trace->nodelen != 1 || + trace->remlen != 1; case TEST_OUT_NO_ROOM: case TEST_IN_NO_ROOM: case TEST_IN_OFLAG: - return !ioam6h->overflow || - ioam6h->nodelen != 2 || - ioam6h->remlen != 1; + return trace->overflow == 0 || + trace->nodelen != 2 || + trace->remlen != 1; + + case TEST_OUT_NO_ROOM_OSS: + return trace->overflow == 0 || + trace->nodelen != 0 || + trace->remlen != 1; + + case TEST_IN_NO_ROOM_OSS: + case TEST_OUT_BIT22: + case TEST_IN_BIT22: + return trace->overflow == 1 || + trace->nodelen != 0 || + trace->remlen != 0; case TEST_OUT_BIT0: case TEST_IN_BIT0: @@ -164,9 +293,9 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, case TEST_IN_BIT7: case TEST_OUT_BIT11: case TEST_IN_BIT11: - return ioam6h->overflow || - ioam6h->nodelen != 1 || - ioam6h->remlen; + return trace->overflow == 1 || + trace->nodelen != 1 || + trace->remlen != 0; case TEST_OUT_BIT8: case TEST_IN_BIT8: @@ -174,22 +303,145 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, case TEST_IN_BIT9: case TEST_OUT_BIT10: case TEST_IN_BIT10: - return ioam6h->overflow || - ioam6h->nodelen != 2 || - ioam6h->remlen; - - case TEST_OUT_BIT22: - case TEST_IN_BIT22: - return ioam6h->overflow || - ioam6h->nodelen || - ioam6h->remlen; + return trace->overflow == 1 || + trace->nodelen != 2 || + trace->remlen != 0; + + case TEST_OUT_SIZE4: + case TEST_OUT_SIZE8: + case TEST_OUT_SIZE12: + case TEST_OUT_SIZE16: + case TEST_OUT_SIZE20: + case TEST_OUT_SIZE24: + case TEST_OUT_SIZE28: + case TEST_OUT_SIZE32: + case TEST_OUT_SIZE36: + case TEST_OUT_SIZE40: + case TEST_OUT_SIZE44: + case TEST_OUT_SIZE48: + case TEST_OUT_SIZE52: + case TEST_OUT_SIZE56: + case TEST_OUT_SIZE60: + case TEST_OUT_SIZE64: + case TEST_OUT_SIZE68: + case TEST_OUT_SIZE72: + case TEST_OUT_SIZE76: + case TEST_OUT_SIZE80: + case TEST_OUT_SIZE84: + case TEST_OUT_SIZE88: + case TEST_OUT_SIZE92: + case TEST_OUT_SIZE96: + case TEST_OUT_SIZE100: + case TEST_OUT_SIZE104: + case TEST_OUT_SIZE108: + case TEST_OUT_SIZE112: + case TEST_OUT_SIZE116: + case TEST_OUT_SIZE120: + case TEST_OUT_SIZE124: + case TEST_OUT_SIZE128: + case TEST_OUT_SIZE132: + case TEST_OUT_SIZE136: + case TEST_OUT_SIZE140: + case TEST_OUT_SIZE144: + case TEST_OUT_SIZE148: + case TEST_OUT_SIZE152: + case TEST_OUT_SIZE156: + case TEST_OUT_SIZE160: + case TEST_OUT_SIZE164: + case TEST_OUT_SIZE168: + case TEST_OUT_SIZE172: + case TEST_OUT_SIZE176: + case TEST_OUT_SIZE180: + case TEST_OUT_SIZE184: + case TEST_OUT_SIZE188: + case TEST_OUT_SIZE192: + case TEST_OUT_SIZE196: + case TEST_OUT_SIZE200: + case TEST_OUT_SIZE204: + case TEST_OUT_SIZE208: + case TEST_OUT_SIZE212: + case TEST_OUT_SIZE216: + case TEST_OUT_SIZE220: + case TEST_OUT_SIZE224: + case TEST_OUT_SIZE228: + case TEST_OUT_SIZE232: + case TEST_OUT_SIZE236: + case TEST_OUT_SIZE240: + case TEST_OUT_SIZE244: + return trace->overflow == 1 || + trace->nodelen != 1 || + trace->remlen != trace_size / 4; + + case TEST_IN_SIZE4: + case TEST_IN_SIZE8: + case TEST_IN_SIZE12: + case TEST_IN_SIZE16: + case TEST_IN_SIZE20: + case TEST_IN_SIZE24: + case TEST_IN_SIZE28: + case TEST_IN_SIZE32: + case TEST_IN_SIZE36: + case TEST_IN_SIZE40: + case TEST_IN_SIZE44: + case TEST_IN_SIZE48: + case TEST_IN_SIZE52: + case TEST_IN_SIZE56: + case TEST_IN_SIZE60: + case TEST_IN_SIZE64: + case TEST_IN_SIZE68: + case TEST_IN_SIZE72: + case TEST_IN_SIZE76: + case TEST_IN_SIZE80: + case TEST_IN_SIZE84: + case TEST_IN_SIZE88: + case TEST_IN_SIZE92: + case TEST_IN_SIZE96: + case TEST_IN_SIZE100: + case TEST_IN_SIZE104: + case TEST_IN_SIZE108: + case TEST_IN_SIZE112: + case TEST_IN_SIZE116: + case TEST_IN_SIZE120: + case TEST_IN_SIZE124: + case TEST_IN_SIZE128: + case TEST_IN_SIZE132: + case TEST_IN_SIZE136: + case TEST_IN_SIZE140: + case TEST_IN_SIZE144: + case TEST_IN_SIZE148: + case TEST_IN_SIZE152: + case TEST_IN_SIZE156: + case TEST_IN_SIZE160: + case TEST_IN_SIZE164: + case TEST_IN_SIZE168: + case TEST_IN_SIZE172: + case TEST_IN_SIZE176: + case TEST_IN_SIZE180: + case TEST_IN_SIZE184: + case TEST_IN_SIZE188: + case TEST_IN_SIZE192: + case TEST_IN_SIZE196: + case TEST_IN_SIZE200: + case TEST_IN_SIZE204: + case TEST_IN_SIZE208: + case TEST_IN_SIZE212: + case TEST_IN_SIZE216: + case TEST_IN_SIZE220: + case TEST_IN_SIZE224: + case TEST_IN_SIZE228: + case TEST_IN_SIZE232: + case TEST_IN_SIZE236: + case TEST_IN_SIZE240: + case TEST_IN_SIZE244: + return trace->overflow == 1 || + trace->nodelen != 1 || + trace->remlen != (trace_size / 4) - trace->nodelen; case TEST_OUT_FULL_SUPP_TRACE: case TEST_IN_FULL_SUPP_TRACE: - case TEST_FWD_FULL_SUPP_TRACE: - return ioam6h->overflow || - ioam6h->nodelen != 15 || - ioam6h->remlen; + return trace->overflow == 1 || + trace->nodelen != 15 || + trace->remlen != 0; default: break; @@ -198,167 +450,137 @@ static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, return 1; } -static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h, - const struct ioam_config cnf) +static int check_data(struct ioam6_trace_hdr *trace, __u8 trace_size, + const struct ioam_config cnf, bool is_output) { - unsigned int len; + unsigned int len, i; __u8 aligned; __u64 raw64; __u32 raw32; + __u8 *p; - if (ioam6h->type.bit0) { - raw32 = __be32_to_cpu(*((__u32 *)*p)); - if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff)) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit1) { - raw32 = __be32_to_cpu(*((__u32 *)*p)); - if (cnf.ingr_id != (raw32 >> 16) || - cnf.egr_id != (raw32 & 0xffff)) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit2) - *p += sizeof(__u32); - - if (ioam6h->type.bit3) - *p += sizeof(__u32); - - if (ioam6h->type.bit4) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit5) { - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ns_data) - return 1; - *p += sizeof(__u32); - } - - if (ioam6h->type.bit6) - *p += sizeof(__u32); + if (trace->type.bit12 | trace->type.bit13 | trace->type.bit14 | + trace->type.bit15 | trace->type.bit16 | trace->type.bit17 | + trace->type.bit18 | trace->type.bit19 | trace->type.bit20 | + trace->type.bit21 | trace->type.bit23) + return 1; - if (ioam6h->type.bit7) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + for (i = 0; i < trace->remlen * 4; i++) { + if (trace->data[i] != 0) return 1; - *p += sizeof(__u32); } - if (ioam6h->type.bit8) { - raw64 = __be64_to_cpu(*((__u64 *)*p)); - if (cnf.hlim != (raw64 >> 56) || - cnf.wide != (raw64 & 0xffffffffffffff)) - return 1; - *p += sizeof(__u64); - } + if (trace->remlen * 4 == trace_size) + return 0; - if (ioam6h->type.bit9) { - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ingr_wide) - return 1; - *p += sizeof(__u32); + p = trace->data + trace->remlen * 4; - if (__be32_to_cpu(*((__u32 *)*p)) != cnf.egr_wide) + if (trace->type.bit0) { + raw32 = __be32_to_cpu(*((__u32 *)p)); + if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit10) { - if (__be64_to_cpu(*((__u64 *)*p)) != cnf.ns_wide) + if (trace->type.bit1) { + raw32 = __be32_to_cpu(*((__u32 *)p)); + if (cnf.ingr_id != (raw32 >> 16) || + cnf.egr_id != (raw32 & 0xffff)) return 1; - *p += sizeof(__u64); + p += sizeof(__u32); } - if (ioam6h->type.bit11) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit2) { + raw32 = __be32_to_cpu(*((__u32 *)p)); + if ((is_output && raw32 != 0xffffffff) || + (!is_output && (raw32 == 0 || raw32 == 0xffffffff))) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit12) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit3) { + raw32 = __be32_to_cpu(*((__u32 *)p)); + if ((is_output && raw32 != 0xffffffff) || + (!is_output && (raw32 == 0 || raw32 == 0xffffffff))) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit13) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit4) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit14) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit5) { + if (__be32_to_cpu(*((__u32 *)p)) != cnf.ns_data) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit15) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit6) { + if (__be32_to_cpu(*((__u32 *)p)) == 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit16) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit7) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit17) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit8) { + raw64 = __be64_to_cpu(*((__u64 *)p)); + if (cnf.hlim != (raw64 >> 56) || + cnf.wide != (raw64 & 0xffffffffffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u64); } - if (ioam6h->type.bit18) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit9) { + if (__be32_to_cpu(*((__u32 *)p)) != cnf.ingr_wide) return 1; - *p += sizeof(__u32); - } + p += sizeof(__u32); - if (ioam6h->type.bit19) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (__be32_to_cpu(*((__u32 *)p)) != cnf.egr_wide) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit20) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit10) { + if (__be64_to_cpu(*((__u64 *)p)) != cnf.ns_wide) return 1; - *p += sizeof(__u32); + p += sizeof(__u64); } - if (ioam6h->type.bit21) { - if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) + if (trace->type.bit11) { + if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); } - if (ioam6h->type.bit22) { + if (trace->type.bit22) { len = cnf.sc_data ? strlen(cnf.sc_data) : 0; aligned = cnf.sc_data ? __ALIGN_KERNEL(len, 4) : 0; - raw32 = __be32_to_cpu(*((__u32 *)*p)); + raw32 = __be32_to_cpu(*((__u32 *)p)); if (aligned != (raw32 >> 24) * 4 || cnf.sc_id != (raw32 & 0xffffff)) return 1; - *p += sizeof(__u32); + p += sizeof(__u32); if (cnf.sc_data) { - if (strncmp((char *)*p, cnf.sc_data, len)) + if (strncmp((char *)p, cnf.sc_data, len)) return 1; - *p += len; + p += len; aligned -= len; while (aligned--) { - if (**p != '\0') + if (*p != '\0') return 1; - *p += sizeof(__u8); + p += sizeof(__u8); } } } @@ -366,151 +588,351 @@ static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h, return 0; } -static int check_ioam_header_and_data(int tid, struct ioam6_trace_hdr *ioam6h, - __u32 trace_type, __u16 ioam_ns) +static int check_ioam_trace(int tid, struct ioam6_trace_hdr *trace, + __u32 trace_type, __u8 trace_size, __u16 ioam_ns) { - __u8 *p; - - if (check_ioam_header(tid, ioam6h, trace_type, ioam_ns)) + if (check_header(tid, trace, trace_type, trace_size, ioam_ns)) return 1; - p = ioam6h->data + ioam6h->remlen * 4; - - switch (tid) { - case TEST_OUT_BIT0: - case TEST_OUT_BIT1: - case TEST_OUT_BIT2: - case TEST_OUT_BIT3: - case TEST_OUT_BIT4: - case TEST_OUT_BIT5: - case TEST_OUT_BIT6: - case TEST_OUT_BIT7: - case TEST_OUT_BIT8: - case TEST_OUT_BIT9: - case TEST_OUT_BIT10: - case TEST_OUT_BIT11: - case TEST_OUT_BIT22: - case TEST_OUT_FULL_SUPP_TRACE: - return check_ioam6_data(&p, ioam6h, node1); - - case TEST_IN_BIT0: - case TEST_IN_BIT1: - case TEST_IN_BIT2: - case TEST_IN_BIT3: - case TEST_IN_BIT4: - case TEST_IN_BIT5: - case TEST_IN_BIT6: - case TEST_IN_BIT7: - case TEST_IN_BIT8: - case TEST_IN_BIT9: - case TEST_IN_BIT10: - case TEST_IN_BIT11: - case TEST_IN_BIT22: - case TEST_IN_FULL_SUPP_TRACE: - { - __u32 tmp32 = node2.egr_wide; - __u16 tmp16 = node2.egr_id; - int res; - - node2.egr_id = 0xffff; - node2.egr_wide = 0xffffffff; + if (tid > __TEST_OUT_MIN && tid < __TEST_OUT_MAX) + return check_data(trace, trace_size, node1, true); - res = check_ioam6_data(&p, ioam6h, node2); - - node2.egr_id = tmp16; - node2.egr_wide = tmp32; - - return res; - } - - case TEST_FWD_FULL_SUPP_TRACE: - if (check_ioam6_data(&p, ioam6h, node3)) - return 1; - if (check_ioam6_data(&p, ioam6h, node2)) - return 1; - return check_ioam6_data(&p, ioam6h, node1); - - default: - break; - } + if (tid > __TEST_IN_MIN && tid < __TEST_IN_MAX) + return check_data(trace, trace_size, node2, false); return 1; } static int str2id(const char *tname) { - if (!strcmp("out_undef_ns", tname)) + if (!strcmp("output_undef_ns", tname)) return TEST_OUT_UNDEF_NS; - if (!strcmp("out_no_room", tname)) + if (!strcmp("output_no_room", tname)) return TEST_OUT_NO_ROOM; - if (!strcmp("out_bit0", tname)) + if (!strcmp("output_no_room_oss", tname)) + return TEST_OUT_NO_ROOM_OSS; + if (!strcmp("output_bit0", tname)) return TEST_OUT_BIT0; - if (!strcmp("out_bit1", tname)) + if (!strcmp("output_bit1", tname)) return TEST_OUT_BIT1; - if (!strcmp("out_bit2", tname)) + if (!strcmp("output_bit2", tname)) return TEST_OUT_BIT2; - if (!strcmp("out_bit3", tname)) + if (!strcmp("output_bit3", tname)) return TEST_OUT_BIT3; - if (!strcmp("out_bit4", tname)) + if (!strcmp("output_bit4", tname)) return TEST_OUT_BIT4; - if (!strcmp("out_bit5", tname)) + if (!strcmp("output_bit5", tname)) return TEST_OUT_BIT5; - if (!strcmp("out_bit6", tname)) + if (!strcmp("output_bit6", tname)) return TEST_OUT_BIT6; - if (!strcmp("out_bit7", tname)) + if (!strcmp("output_bit7", tname)) return TEST_OUT_BIT7; - if (!strcmp("out_bit8", tname)) + if (!strcmp("output_bit8", tname)) return TEST_OUT_BIT8; - if (!strcmp("out_bit9", tname)) + if (!strcmp("output_bit9", tname)) return TEST_OUT_BIT9; - if (!strcmp("out_bit10", tname)) + if (!strcmp("output_bit10", tname)) return TEST_OUT_BIT10; - if (!strcmp("out_bit11", tname)) + if (!strcmp("output_bit11", tname)) return TEST_OUT_BIT11; - if (!strcmp("out_bit22", tname)) + if (!strcmp("output_bit22", tname)) return TEST_OUT_BIT22; - if (!strcmp("out_full_supp_trace", tname)) + if (!strcmp("output_size4", tname)) + return TEST_OUT_SIZE4; + if (!strcmp("output_size8", tname)) + return TEST_OUT_SIZE8; + if (!strcmp("output_size12", tname)) + return TEST_OUT_SIZE12; + if (!strcmp("output_size16", tname)) + return TEST_OUT_SIZE16; + if (!strcmp("output_size20", tname)) + return TEST_OUT_SIZE20; + if (!strcmp("output_size24", tname)) + return TEST_OUT_SIZE24; + if (!strcmp("output_size28", tname)) + return TEST_OUT_SIZE28; + if (!strcmp("output_size32", tname)) + return TEST_OUT_SIZE32; + if (!strcmp("output_size36", tname)) + return TEST_OUT_SIZE36; + if (!strcmp("output_size40", tname)) + return TEST_OUT_SIZE40; + if (!strcmp("output_size44", tname)) + return TEST_OUT_SIZE44; + if (!strcmp("output_size48", tname)) + return TEST_OUT_SIZE48; + if (!strcmp("output_size52", tname)) + return TEST_OUT_SIZE52; + if (!strcmp("output_size56", tname)) + return TEST_OUT_SIZE56; + if (!strcmp("output_size60", tname)) + return TEST_OUT_SIZE60; + if (!strcmp("output_size64", tname)) + return TEST_OUT_SIZE64; + if (!strcmp("output_size68", tname)) + return TEST_OUT_SIZE68; + if (!strcmp("output_size72", tname)) + return TEST_OUT_SIZE72; + if (!strcmp("output_size76", tname)) + return TEST_OUT_SIZE76; + if (!strcmp("output_size80", tname)) + return TEST_OUT_SIZE80; + if (!strcmp("output_size84", tname)) + return TEST_OUT_SIZE84; + if (!strcmp("output_size88", tname)) + return TEST_OUT_SIZE88; + if (!strcmp("output_size92", tname)) + return TEST_OUT_SIZE92; + if (!strcmp("output_size96", tname)) + return TEST_OUT_SIZE96; + if (!strcmp("output_size100", tname)) + return TEST_OUT_SIZE100; + if (!strcmp("output_size104", tname)) + return TEST_OUT_SIZE104; + if (!strcmp("output_size108", tname)) + return TEST_OUT_SIZE108; + if (!strcmp("output_size112", tname)) + return TEST_OUT_SIZE112; + if (!strcmp("output_size116", tname)) + return TEST_OUT_SIZE116; + if (!strcmp("output_size120", tname)) + return TEST_OUT_SIZE120; + if (!strcmp("output_size124", tname)) + return TEST_OUT_SIZE124; + if (!strcmp("output_size128", tname)) + return TEST_OUT_SIZE128; + if (!strcmp("output_size132", tname)) + return TEST_OUT_SIZE132; + if (!strcmp("output_size136", tname)) + return TEST_OUT_SIZE136; + if (!strcmp("output_size140", tname)) + return TEST_OUT_SIZE140; + if (!strcmp("output_size144", tname)) + return TEST_OUT_SIZE144; + if (!strcmp("output_size148", tname)) + return TEST_OUT_SIZE148; + if (!strcmp("output_size152", tname)) + return TEST_OUT_SIZE152; + if (!strcmp("output_size156", tname)) + return TEST_OUT_SIZE156; + if (!strcmp("output_size160", tname)) + return TEST_OUT_SIZE160; + if (!strcmp("output_size164", tname)) + return TEST_OUT_SIZE164; + if (!strcmp("output_size168", tname)) + return TEST_OUT_SIZE168; + if (!strcmp("output_size172", tname)) + return TEST_OUT_SIZE172; + if (!strcmp("output_size176", tname)) + return TEST_OUT_SIZE176; + if (!strcmp("output_size180", tname)) + return TEST_OUT_SIZE180; + if (!strcmp("output_size184", tname)) + return TEST_OUT_SIZE184; + if (!strcmp("output_size188", tname)) + return TEST_OUT_SIZE188; + if (!strcmp("output_size192", tname)) + return TEST_OUT_SIZE192; + if (!strcmp("output_size196", tname)) + return TEST_OUT_SIZE196; + if (!strcmp("output_size200", tname)) + return TEST_OUT_SIZE200; + if (!strcmp("output_size204", tname)) + return TEST_OUT_SIZE204; + if (!strcmp("output_size208", tname)) + return TEST_OUT_SIZE208; + if (!strcmp("output_size212", tname)) + return TEST_OUT_SIZE212; + if (!strcmp("output_size216", tname)) + return TEST_OUT_SIZE216; + if (!strcmp("output_size220", tname)) + return TEST_OUT_SIZE220; + if (!strcmp("output_size224", tname)) + return TEST_OUT_SIZE224; + if (!strcmp("output_size228", tname)) + return TEST_OUT_SIZE228; + if (!strcmp("output_size232", tname)) + return TEST_OUT_SIZE232; + if (!strcmp("output_size236", tname)) + return TEST_OUT_SIZE236; + if (!strcmp("output_size240", tname)) + return TEST_OUT_SIZE240; + if (!strcmp("output_size244", tname)) + return TEST_OUT_SIZE244; + if (!strcmp("output_full_supp_trace", tname)) return TEST_OUT_FULL_SUPP_TRACE; - if (!strcmp("in_undef_ns", tname)) + if (!strcmp("input_undef_ns", tname)) return TEST_IN_UNDEF_NS; - if (!strcmp("in_no_room", tname)) + if (!strcmp("input_no_room", tname)) return TEST_IN_NO_ROOM; - if (!strcmp("in_oflag", tname)) + if (!strcmp("input_no_room_oss", tname)) + return TEST_IN_NO_ROOM_OSS; + if (!strcmp("input_disabled", tname)) + return TEST_IN_DISABLED; + if (!strcmp("input_oflag", tname)) return TEST_IN_OFLAG; - if (!strcmp("in_bit0", tname)) + if (!strcmp("input_bit0", tname)) return TEST_IN_BIT0; - if (!strcmp("in_bit1", tname)) + if (!strcmp("input_bit1", tname)) return TEST_IN_BIT1; - if (!strcmp("in_bit2", tname)) + if (!strcmp("input_bit2", tname)) return TEST_IN_BIT2; - if (!strcmp("in_bit3", tname)) + if (!strcmp("input_bit3", tname)) return TEST_IN_BIT3; - if (!strcmp("in_bit4", tname)) + if (!strcmp("input_bit4", tname)) return TEST_IN_BIT4; - if (!strcmp("in_bit5", tname)) + if (!strcmp("input_bit5", tname)) return TEST_IN_BIT5; - if (!strcmp("in_bit6", tname)) + if (!strcmp("input_bit6", tname)) return TEST_IN_BIT6; - if (!strcmp("in_bit7", tname)) + if (!strcmp("input_bit7", tname)) return TEST_IN_BIT7; - if (!strcmp("in_bit8", tname)) + if (!strcmp("input_bit8", tname)) return TEST_IN_BIT8; - if (!strcmp("in_bit9", tname)) + if (!strcmp("input_bit9", tname)) return TEST_IN_BIT9; - if (!strcmp("in_bit10", tname)) + if (!strcmp("input_bit10", tname)) return TEST_IN_BIT10; - if (!strcmp("in_bit11", tname)) + if (!strcmp("input_bit11", tname)) return TEST_IN_BIT11; - if (!strcmp("in_bit22", tname)) + if (!strcmp("input_bit22", tname)) return TEST_IN_BIT22; - if (!strcmp("in_full_supp_trace", tname)) + if (!strcmp("input_size4", tname)) + return TEST_IN_SIZE4; + if (!strcmp("input_size8", tname)) + return TEST_IN_SIZE8; + if (!strcmp("input_size12", tname)) + return TEST_IN_SIZE12; + if (!strcmp("input_size16", tname)) + return TEST_IN_SIZE16; + if (!strcmp("input_size20", tname)) + return TEST_IN_SIZE20; + if (!strcmp("input_size24", tname)) + return TEST_IN_SIZE24; + if (!strcmp("input_size28", tname)) + return TEST_IN_SIZE28; + if (!strcmp("input_size32", tname)) + return TEST_IN_SIZE32; + if (!strcmp("input_size36", tname)) + return TEST_IN_SIZE36; + if (!strcmp("input_size40", tname)) + return TEST_IN_SIZE40; + if (!strcmp("input_size44", tname)) + return TEST_IN_SIZE44; + if (!strcmp("input_size48", tname)) + return TEST_IN_SIZE48; + if (!strcmp("input_size52", tname)) + return TEST_IN_SIZE52; + if (!strcmp("input_size56", tname)) + return TEST_IN_SIZE56; + if (!strcmp("input_size60", tname)) + return TEST_IN_SIZE60; + if (!strcmp("input_size64", tname)) + return TEST_IN_SIZE64; + if (!strcmp("input_size68", tname)) + return TEST_IN_SIZE68; + if (!strcmp("input_size72", tname)) + return TEST_IN_SIZE72; + if (!strcmp("input_size76", tname)) + return TEST_IN_SIZE76; + if (!strcmp("input_size80", tname)) + return TEST_IN_SIZE80; + if (!strcmp("input_size84", tname)) + return TEST_IN_SIZE84; + if (!strcmp("input_size88", tname)) + return TEST_IN_SIZE88; + if (!strcmp("input_size92", tname)) + return TEST_IN_SIZE92; + if (!strcmp("input_size96", tname)) + return TEST_IN_SIZE96; + if (!strcmp("input_size100", tname)) + return TEST_IN_SIZE100; + if (!strcmp("input_size104", tname)) + return TEST_IN_SIZE104; + if (!strcmp("input_size108", tname)) + return TEST_IN_SIZE108; + if (!strcmp("input_size112", tname)) + return TEST_IN_SIZE112; + if (!strcmp("input_size116", tname)) + return TEST_IN_SIZE116; + if (!strcmp("input_size120", tname)) + return TEST_IN_SIZE120; + if (!strcmp("input_size124", tname)) + return TEST_IN_SIZE124; + if (!strcmp("input_size128", tname)) + return TEST_IN_SIZE128; + if (!strcmp("input_size132", tname)) + return TEST_IN_SIZE132; + if (!strcmp("input_size136", tname)) + return TEST_IN_SIZE136; + if (!strcmp("input_size140", tname)) + return TEST_IN_SIZE140; + if (!strcmp("input_size144", tname)) + return TEST_IN_SIZE144; + if (!strcmp("input_size148", tname)) + return TEST_IN_SIZE148; + if (!strcmp("input_size152", tname)) + return TEST_IN_SIZE152; + if (!strcmp("input_size156", tname)) + return TEST_IN_SIZE156; + if (!strcmp("input_size160", tname)) + return TEST_IN_SIZE160; + if (!strcmp("input_size164", tname)) + return TEST_IN_SIZE164; + if (!strcmp("input_size168", tname)) + return TEST_IN_SIZE168; + if (!strcmp("input_size172", tname)) + return TEST_IN_SIZE172; + if (!strcmp("input_size176", tname)) + return TEST_IN_SIZE176; + if (!strcmp("input_size180", tname)) + return TEST_IN_SIZE180; + if (!strcmp("input_size184", tname)) + return TEST_IN_SIZE184; + if (!strcmp("input_size188", tname)) + return TEST_IN_SIZE188; + if (!strcmp("input_size192", tname)) + return TEST_IN_SIZE192; + if (!strcmp("input_size196", tname)) + return TEST_IN_SIZE196; + if (!strcmp("input_size200", tname)) + return TEST_IN_SIZE200; + if (!strcmp("input_size204", tname)) + return TEST_IN_SIZE204; + if (!strcmp("input_size208", tname)) + return TEST_IN_SIZE208; + if (!strcmp("input_size212", tname)) + return TEST_IN_SIZE212; + if (!strcmp("input_size216", tname)) + return TEST_IN_SIZE216; + if (!strcmp("input_size220", tname)) + return TEST_IN_SIZE220; + if (!strcmp("input_size224", tname)) + return TEST_IN_SIZE224; + if (!strcmp("input_size228", tname)) + return TEST_IN_SIZE228; + if (!strcmp("input_size232", tname)) + return TEST_IN_SIZE232; + if (!strcmp("input_size236", tname)) + return TEST_IN_SIZE236; + if (!strcmp("input_size240", tname)) + return TEST_IN_SIZE240; + if (!strcmp("input_size244", tname)) + return TEST_IN_SIZE244; + if (!strcmp("input_full_supp_trace", tname)) return TEST_IN_FULL_SUPP_TRACE; - if (!strcmp("fwd_full_supp_trace", tname)) - return TEST_FWD_FULL_SUPP_TRACE; return -1; } +static int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2) +{ + return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | + (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | + (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | + (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0; +} + static int get_u32(__u32 *val, const char *arg, int base) { unsigned long res; @@ -555,119 +977,124 @@ static int get_u16(__u16 *val, const char *arg, int base) return 0; } -static int (*func[__TEST_MAX])(int, struct ioam6_trace_hdr *, __u32, __u16) = { - [TEST_OUT_UNDEF_NS] = check_ioam_header, - [TEST_OUT_NO_ROOM] = check_ioam_header, - [TEST_OUT_BIT0] = check_ioam_header_and_data, - [TEST_OUT_BIT1] = check_ioam_header_and_data, - [TEST_OUT_BIT2] = check_ioam_header_and_data, - [TEST_OUT_BIT3] = check_ioam_header_and_data, - [TEST_OUT_BIT4] = check_ioam_header_and_data, - [TEST_OUT_BIT5] = check_ioam_header_and_data, - [TEST_OUT_BIT6] = check_ioam_header_and_data, - [TEST_OUT_BIT7] = check_ioam_header_and_data, - [TEST_OUT_BIT8] = check_ioam_header_and_data, - [TEST_OUT_BIT9] = check_ioam_header_and_data, - [TEST_OUT_BIT10] = check_ioam_header_and_data, - [TEST_OUT_BIT11] = check_ioam_header_and_data, - [TEST_OUT_BIT22] = check_ioam_header_and_data, - [TEST_OUT_FULL_SUPP_TRACE] = check_ioam_header_and_data, - [TEST_IN_UNDEF_NS] = check_ioam_header, - [TEST_IN_NO_ROOM] = check_ioam_header, - [TEST_IN_OFLAG] = check_ioam_header, - [TEST_IN_BIT0] = check_ioam_header_and_data, - [TEST_IN_BIT1] = check_ioam_header_and_data, - [TEST_IN_BIT2] = check_ioam_header_and_data, - [TEST_IN_BIT3] = check_ioam_header_and_data, - [TEST_IN_BIT4] = check_ioam_header_and_data, - [TEST_IN_BIT5] = check_ioam_header_and_data, - [TEST_IN_BIT6] = check_ioam_header_and_data, - [TEST_IN_BIT7] = check_ioam_header_and_data, - [TEST_IN_BIT8] = check_ioam_header_and_data, - [TEST_IN_BIT9] = check_ioam_header_and_data, - [TEST_IN_BIT10] = check_ioam_header_and_data, - [TEST_IN_BIT11] = check_ioam_header_and_data, - [TEST_IN_BIT22] = check_ioam_header_and_data, - [TEST_IN_FULL_SUPP_TRACE] = check_ioam_header_and_data, - [TEST_FWD_FULL_SUPP_TRACE] = check_ioam_header_and_data, -}; +static int get_u8(__u8 *val, const char *arg, int base) +{ + unsigned long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtoul(arg, &ptr, base); + + if (!ptr || ptr == arg || *ptr) + return -1; + + if (res == ULONG_MAX && errno == ERANGE) + return -1; + + if (res > 0xFFUL) + return -1; + + *val = res; + return 0; +} int main(int argc, char **argv) { - int fd, size, hoplen, tid, ret = 1, on = 1; - struct ioam6_hdr *opt; - struct cmsghdr *cmsg; - struct msghdr msg; - struct iovec iov; - __u8 buffer[512]; + __u8 buffer[512], *ptr, nexthdr, tr_size; + struct ioam6_trace_hdr *trace; + unsigned int hoplen, ret = 1; + struct ipv6_hopopt_hdr *hbh; + int fd, size, testname_id; + struct in6_addr src, dst; + struct ioam6_hdr *ioam6; + struct timeval timeout; + struct ipv6hdr *ipv6; __u32 tr_type; __u16 ioam_ns; - __u8 *ptr; - if (argc != 5) + if (argc != 9) goto out; - tid = str2id(argv[1]); - if (tid < 0 || !func[tid]) - goto out; + testname_id = str2id(argv[2]); - if (get_u32(&tr_type, argv[2], 16) || - get_u16(&ioam_ns, argv[3], 0)) + if (testname_id < 0 || + inet_pton(AF_INET6, argv[3], &src) != 1 || + inet_pton(AF_INET6, argv[4], &dst) != 1 || + get_u32(&tr_type, argv[5], 16) || + get_u8(&tr_size, argv[6], 0) || + get_u16(&ioam_ns, argv[7], 0)) goto out; - fd = socket(PF_INET6, SOCK_RAW, - !strcmp(argv[4], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6); + nexthdr = (!strcmp(argv[8], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6); + + hoplen = sizeof(*hbh); + hoplen += 2; // 2-byte padding for alignment + hoplen += sizeof(*ioam6); // IOAM option header + hoplen += sizeof(*trace); // IOAM trace header + hoplen += tr_size; // IOAM trace size + hoplen += (tr_size % 8); // optional padding + + fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6)); if (fd < 0) goto out; - setsockopt(fd, IPPROTO_IPV6, IPV6_RECVHOPOPTS, &on, sizeof(on)); + if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, + argv[1], strlen(argv[1]))) + goto close; - iov.iov_len = 1; - iov.iov_base = malloc(CMSG_SPACE(sizeof(buffer))); - if (!iov.iov_base) + timeout.tv_sec = 1; + timeout.tv_usec = 0; + if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, + (const char *)&timeout, sizeof(timeout))) goto close; recv: - memset(&msg, 0, sizeof(msg)); - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - msg.msg_control = buffer; - msg.msg_controllen = CMSG_SPACE(sizeof(buffer)); - - size = recvmsg(fd, &msg, 0); + size = recv(fd, buffer, sizeof(buffer), 0); if (size <= 0) goto close; - for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) { - if (cmsg->cmsg_level != IPPROTO_IPV6 || - cmsg->cmsg_type != IPV6_HOPOPTS || - cmsg->cmsg_len < sizeof(struct ipv6_hopopt_hdr)) - continue; + ipv6 = (struct ipv6hdr *)buffer; + + /* Skip packets that do not have the expected src/dst address or that + * do not have a Hop-by-hop. + */ + if (!ipv6_addr_equal(&ipv6->saddr, &src) || + !ipv6_addr_equal(&ipv6->daddr, &dst) || + ipv6->nexthdr != IPPROTO_HOPOPTS) + goto recv; + + /* Check Hbh's Next Header and Size. */ + hbh = (struct ipv6_hopopt_hdr *)(buffer + sizeof(*ipv6)); + if (hbh->nexthdr != nexthdr || hbh->hdrlen != (hoplen >> 3) - 1) + goto close; - ptr = (__u8 *)CMSG_DATA(cmsg); + /* Check we have a 2-byte padding for alignment. */ + ptr = (__u8 *)hbh + sizeof(*hbh); + if (ptr[0] != IPV6_TLV_PADN && ptr[1] != 0) + goto close; - hoplen = (ptr[1] + 1) << 3; - ptr += sizeof(struct ipv6_hopopt_hdr); + /* Check we now have the IOAM option. */ + ptr += 2; + if (ptr[0] != IPV6_TLV_IOAM) + goto close; - while (hoplen > 0) { - opt = (struct ioam6_hdr *)ptr; + /* Check its size and the IOAM option type. */ + ioam6 = (struct ioam6_hdr *)ptr; + if (ioam6->opt_len != sizeof(*ioam6) - 2 + sizeof(*trace) + tr_size || + ioam6->type != IOAM6_TYPE_PREALLOC) + goto close; - if (opt->opt_type == IPV6_TLV_IOAM && - opt->type == IOAM6_TYPE_PREALLOC) { - ptr += sizeof(*opt); - ret = func[tid](tid, - (struct ioam6_trace_hdr *)ptr, - tr_type, ioam_ns); - goto close; - } + trace = (struct ioam6_trace_hdr *)(ptr + sizeof(*ioam6)); - ptr += opt->opt_len + 2; - hoplen -= opt->opt_len + 2; - } - } + /* Check the trailing 4-byte padding (potentially). */ + ptr = (__u8 *)trace + sizeof(*trace) + tr_size; + if (tr_size % 8 && ptr[0] != IPV6_TLV_PADN && ptr[1] != 2 && + ptr[2] != 0 && ptr[3] != 0) + goto close; - goto recv; + /* Check the IOAM header and data. */ + ret = check_ioam_trace(testname_id, trace, tr_type, tr_size, ioam_ns); close: - free(iov.iov_base); close(fd); out: return ret; -- 2.34.1

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