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[PATCH AUTOSEL 5.14 26/40] selftests: kvm: move get_run_delay() into lib/test_util

by Sasha Levin

From: Shuah Khan <skhan(a)linuxfoundation.org> [ Upstream commit 20175d5eac5bb94a7a3719ef275337fc9abf26ac ] get_run_delay() is defined static in xen_shinfo_test and steal_time test. Move it to lib and remove code duplication. Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Acked-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/include/test_util.h | 1 + tools/testing/selftests/kvm/lib/test_util.c | 15 +++++++++++++++ tools/testing/selftests/kvm/steal_time.c | 15 --------------- .../selftests/kvm/x86_64/xen_shinfo_test.c | 15 --------------- 4 files changed, 16 insertions(+), 30 deletions(-) diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h index d79be15dd3d2..c7409b9b4e5b 100644 --- a/tools/testing/selftests/kvm/include/test_util.h +++ b/tools/testing/selftests/kvm/include/test_util.h @@ -102,6 +102,7 @@ const struct vm_mem_backing_src_alias *vm_mem_backing_src_alias(uint32_t i); size_t get_backing_src_pagesz(uint32_t i); void backing_src_help(void); enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name); +long get_run_delay(void); /* * Whether or not the given source type is shared memory (as opposed to diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c index 938cd423643e..f80dd38a38b2 100644 --- a/tools/testing/selftests/kvm/lib/test_util.c +++ b/tools/testing/selftests/kvm/lib/test_util.c @@ -11,6 +11,7 @@ #include <stdlib.h> #include <time.h> #include <sys/stat.h> +#include <sys/syscall.h> #include <linux/mman.h> #include "linux/kernel.h" @@ -303,3 +304,17 @@ enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name) TEST_FAIL("Unknown backing src type: %s", type_name); return -1; } + +long get_run_delay(void) +{ + char path[64]; + long val[2]; + FILE *fp; + + sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid)); + fp = fopen(path, "r"); + fscanf(fp, "%ld %ld ", &val[0], &val[1]); + fclose(fp); + + return val[1]; +} diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c index ecec30865a74..51fe95a5c36a 100644 --- a/tools/testing/selftests/kvm/steal_time.c +++ b/tools/testing/selftests/kvm/steal_time.c @@ -10,7 +10,6 @@ #include <sched.h> #include <pthread.h> #include <linux/kernel.h> -#include <sys/syscall.h> #include <asm/kvm.h> #include <asm/kvm_para.h> @@ -217,20 +216,6 @@ static void steal_time_dump(struct kvm_vm *vm, uint32_t vcpuid) #endif -static long get_run_delay(void) -{ - char path[64]; - long val[2]; - FILE *fp; - - sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid)); - fp = fopen(path, "r"); - fscanf(fp, "%ld %ld ", &val[0], &val[1]); - fclose(fp); - - return val[1]; -} - static void *do_steal_time(void *arg) { struct timespec ts, stop; diff --git a/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c b/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c index 117bf49a3d79..eda0d2a51224 100644 --- a/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c +++ b/tools/testing/selftests/kvm/x86_64/xen_shinfo_test.c @@ -14,7 +14,6 @@ #include <stdint.h> #include <time.h> #include <sched.h> -#include <sys/syscall.h> #define VCPU_ID 5 @@ -98,20 +97,6 @@ static void guest_code(void) GUEST_DONE(); } -static long get_run_delay(void) -{ - char path[64]; - long val[2]; - FILE *fp; - - sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid)); - fp = fopen(path, "r"); - fscanf(fp, "%ld %ld ", &val[0], &val[1]); - fclose(fp); - - return val[1]; -} - static int cmp_timespec(struct timespec *a, struct timespec *b) { if (a->tv_sec > b->tv_sec) -- 2.33.0

4 years

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[PATCH AUTOSEL 5.14 25/40] selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn

by Sasha Levin

From: Shuah Khan <skhan(a)linuxfoundation.org> [ Upstream commit 3a4f0cc693cd3d80e66a255f0bff0e2c0461eef1 ] Fix get_trans_hugepagesz() to check fscanf() return value to get rid of the following warning: lib/test_util.c: In function ‘get_trans_hugepagesz’: lib/test_util.c:138:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 138 | fscanf(f, "%ld", &size); | ^~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Acked-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/lib/test_util.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c index af1031fed97f..938cd423643e 100644 --- a/tools/testing/selftests/kvm/lib/test_util.c +++ b/tools/testing/selftests/kvm/lib/test_util.c @@ -129,13 +129,16 @@ size_t get_trans_hugepagesz(void) { size_t size; FILE *f; + int ret; TEST_ASSERT(thp_configured(), "THP is not configured in host kernel"); f = fopen("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size", "r"); TEST_ASSERT(f != NULL, "Error in opening transparent_hugepage/hpage_pmd_size"); - fscanf(f, "%ld", &size); + ret = fscanf(f, "%ld", &size); + ret = fscanf(f, "%ld", &size); + TEST_ASSERT(ret < 1, "Error reading transparent_hugepage/hpage_pmd_size"); fclose(f); return size; -- 2.33.0

4 years

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[PATCH AUTOSEL 5.14 24/40] selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn

by Sasha Levin

From: Shuah Khan <skhan(a)linuxfoundation.org> [ Upstream commit 39a71f712d8a13728febd8f3cb3f6db7e1fa7221 ] Fix get_warnings_count() to check fscanf() return value to get rid of the following warning: x86_64/mmio_warning_test.c: In function ‘get_warnings_count’: x86_64/mmio_warning_test.c:85:2: warning: ignoring return value of ‘fscanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result] 85 | fscanf(f, "%d", &warnings); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Acked-by: Paolo Bonzini <pbonzini(a)redhat.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/kvm/x86_64/mmio_warning_test.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c index e6480fd5c4bd..8039e1eff938 100644 --- a/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c +++ b/tools/testing/selftests/kvm/x86_64/mmio_warning_test.c @@ -82,7 +82,8 @@ int get_warnings_count(void) FILE *f; f = popen("dmesg | grep \"WARNING:\" | wc -l", "r"); - fscanf(f, "%d", &warnings); + if (fscanf(f, "%d", &warnings) < 1) + warnings = 0; fclose(f); return warnings; -- 2.33.0

4 years

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[PATCH AUTOSEL 5.14 23/40] selftests: be sure to make khdr before other targets

by Sasha Levin

From: Li Zhijian <lizhijian(a)cn.fujitsu.com> [ Upstream commit 8914a7a247e065438a0ec86a58c1c359223d2c9e ] LKP/0Day reported some building errors about kvm, and errors message are not always same: - lib/x86_64/processor.c:1083:31: error: ‘KVM_CAP_NESTED_STATE’ undeclared (first use in this function); did you mean ‘KVM_CAP_PIT_STATE2’? - lib/test_util.c:189:30: error: ‘MAP_HUGE_16KB’ undeclared (first use in this function); did you mean ‘MAP_HUGE_16GB’? Although kvm relies on the khdr, they still be built in parallel when -j is specified. In this case, it will cause compiling errors. Here we mark target khdr as NOTPARALLEL to make it be always built first. CC: Philip Li <philip.li(a)intel.com> Reported-by: kernel test robot <lkp(a)intel.com> Signed-off-by: Li Zhijian <lizhijian(a)cn.fujitsu.com> Signed-off-by: Shuah Khan <skhan(a)linuxfoundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/lib.mk | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index fa2ac0e56b43..fe7ee2b0f29c 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -48,6 +48,7 @@ ARCH ?= $(SUBARCH) # When local build is done, headers are installed in the default # INSTALL_HDR_PATH usr/include. .PHONY: khdr +.NOTPARALLEL: khdr: ifndef KSFT_KHDR_INSTALL_DONE ifeq (1,$(DEFAULT_INSTALL_HDR_PATH)) -- 2.33.0

4 years

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Re: [PATCH v7 00/12 (RESEND)] syfs: generic deadlock fix with module removal

by Tejun Heo

On Fri, Sep 17, 2021 at 10:04:18PM -0700, Luis Chamberlain wrote: > In this v7 I've decided it is best to merge all the effort together into > one patch set because communication was being lost when I split the > patches up. This was not helping in any way to either fix the zram > issues or come to consensus on a generic solution. The patches are also > merged now because they are all related now. Building up all the testing framewoork is really great. I have no opinions about the license related stuff but all other changes generally look good to me. Thanks. -- tejun

4 years

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[REGRESSION] lkft kselftest for next-20210923

by lkft＠linaro.org

## Build * kernel: 5.15.0-rc2 * git: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next * git branch: master * git commit: bc5aa70f26995791074a00da8b57ead3a9c1a646 * git describe: next-20210923 * test details: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20210923 ## Regressions (compared to next-20210915) * qemu-arm64-gic-version2, kselftest-timers - timers.rtcpie * qemu_i386, kselftest-seccomp - seccomp.seccomp_benchmark * qemu_x86_64, kselftest-x86 - x86.iopl_64 Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org> ## Fixes (compared to next-20210915) * qemu-arm64-gic-version2, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * qemu-arm64-gic-version3, kselftest-timers - timers.rtcpie * qemu-arm64-mte, kselftest-cgroup - cgroup.test_freezer - cgroup.test_freezer.test_cgfreezer_ptrace * qemu-arm64-mte, kselftest-timers - timers.rtcpie * qemu_arm64, kselftest-timers - timers.rtcpie ## Test result summary total: 3678, pass: 1997, fail: 324, skip: 1357, xfail: 0 ## Build Summary ## Test suites summary * kselftest-android * kselftest-arm64 * kselftest-arm64/arm64.btitest.bti_c_func * kselftest-arm64/arm64.btitest.bti_j_func * kselftest-arm64/arm64.btitest.bti_jc_func * kselftest-arm64/arm64.btitest.bti_none_func * kselftest-arm64/arm64.btitest.nohint_func * kselftest-arm64/arm64.btitest.paciasp_func * kselftest-arm64/arm64.nobtitest.bti_c_func * kselftest-arm64/arm64.nobtitest.bti_j_func * kselftest-arm64/arm64.nobtitest.bti_jc_func * kselftest-arm64/arm64.nobtitest.bti_none_func * kselftest-arm64/arm64.nobtitest.nohint_func * kselftest-arm64/arm64.nobtitest.paciasp_func * kselftest-breakpoints * kselftest-capabilities * kselftest-cgroup * kselftest-clone3 * kselftest-core * kselftest-cpu-hotplug * kselftest-cpufreq * kselftest-drivers * kselftest-efivarfs * kselftest-filesystems * kselftest-firmware * kselftest-fpu * kselftest-futex * kselftest-gpio * kselftest-intel_pstate * kselftest-ipc * kselftest-ir * kselftest-kcmp * kselftest-kvm * kselftest-lib * kselftest-livepatch * kselftest-membarrier * kselftest-memfd * kselftest-memory-hotplug * kselftest-mincore * kselftest-mount * kselftest-mqueue * kselftest-net * kselftest-netfilter * kselftest-nsfs * kselftest-openat2 * kselftest-pid_namespace * kselftest-pidfd * kselftest-proc * kselftest-pstore * kselftest-ptrace * kselftest-rseq * kselftest-rtc * kselftest-seccomp * kselftest-sigaltstack * kselftest-size * kselftest-splice * kselftest-static_keys * kselftest-sync * kselftest-sysctl * kselftest-timens * kselftest-timers * kselftest-tmpfs * kselftest-tpm2 * kselftest-user * kselftest-vm * kselftest-x86 * kselftest-zram -- Linaro LKFT https://lkft.linaro.org

4 years

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[GIT PULL] Kselftest fixes update for Linux 5.15-rc3

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 5.15-rc3. This Kselftest fixes update for Linux 5.15-rc3 consists of: - fix to Kselftest common framework header install to run before other targets for it work correctly in parallel build case. - fixes to kvm test to not ignore fscanf() returns which could result in inconsistent test behavior and failures. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f: Linux 5.15-rc1 (2021-09-12 16:28:37 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.15-rc3 for you to fetch changes up to f5013d412a43662b63f3d5f3a804d63213acd471: selftests: kvm: fix get_run_delay() ignoring fscanf() return warn (2021-09-16 12:57:32 -0600) ---------------------------------------------------------------- linux-kselftest-fixes-5.15-rc3 This Kselftest fixes update for Linux 5.15-rc3 consists of: - fix to Kselftest common framework header install to run before other targets for it work correctly in parallel build case. - fixes to kvm test to not ignore fscanf() returns which could result in inconsistent test behavior and failures. ---------------------------------------------------------------- Li Zhijian (1): selftests: be sure to make khdr before other targets Shuah Khan (4): selftests:kvm: fix get_warnings_count() ignoring fscanf() return warn selftests:kvm: fix get_trans_hugepagesz() ignoring fscanf() return warn selftests: kvm: move get_run_delay() into lib/test_util selftests: kvm: fix get_run_delay() ignoring fscanf() return warn tools/testing/selftests/kvm/include/test_util.h | 3 +++ tools/testing/selftests/kvm/lib/test_util.c | 22 +++++++++++++++++++++- tools/testing/selftests/kvm/steal_time.c | 16 ---------------- .../selftests/kvm/x86_64/mmio_warning_test.c | 3 ++- .../testing/selftests/kvm/x86_64/xen_shinfo_test.c | 15 --------------- tools/testing/selftests/lib.mk | 1 + 6 files changed, 27 insertions(+), 33 deletions(-) ----------------------------------------------------------------

4 years

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[PATCH 00/19] tcp: Initial support for RFC5925 auth option

by Leonard Crestez

This is similar to TCP MD5 in functionality but it's sufficiently different that wire formats are incompatible. Compared to TCP-MD5 more algorithms are supported and multiple keys can be used on the same connection but there is still no negotiation mechanism. Expected use-case is protecting long-duration BGP/LDP connections between routers using pre-shared keys. The goal of this series is to allow routers using the linux TCP stack to interoperate with vendors such as Cisco and Juniper. Both algorithms described in RFC5926 are implemented but the code is not very easily extensible beyond that. In particular there are several code paths making stack allocations based on RFC5926 maximum, those would have to be increased. This version is incorporates previous feedback and expands the handling of timewait sockets and RST packets. Here are some known flaws and limits: * Interaction with TCP-MD5 is not tested in all corners * Interaction with FASTOPEN not tested but unlikely to work because sequence number assumptions for syn/ack. * Sequence Number Extension not implemented so connections will flap every ~4G of traffic. * Not clear if crypto_shash_setkey might sleep. If some implementation do that then maybe they could be excluded through alloc flags. * Traffic key is not cached (reducing performance) * User is responsible for ensuring keys do not overlap I labeled this as [PATCH]] because the issues above are not critical. Test suite was added to tools/selftests/tcp_authopt. Tests are written in python using pytest and scapy and check the API in some detail and validate packet captures. Python code is already used in linux and in kselftests but virtualenvs not very much. This test suite uses `tox` to create a private virtualenv and hide dependencies. There is no clear guidance for how to add python-based kselftests so I made it up. Limited testing support is also included in nettest and fcnal-test.sh. Coverage is extremely limited, I did not expand it because the tests run too slowly. Changes for frr: https://github.com/FRRouting/frr/pull/9442 That PR was made early for ABI feedback, it has many issues. Changes for yabgp: https://github.com/cdleonard/yabgp/commits/tcp_authopt This can be use for easy interoperability testing with cisco/juniper/etc. Changes since RFCv3: * Implement TCP_AUTHOPT handling for timewait and reset replies. Write tests to execute these paths by injecting packets with scapy * Handle combining md5 and authopt: if both are configured use authopt. * Fix locking issues around send_key, introduced in on of the later patches. * Handle IPv4-mapped-IPv6 addresses: it used to be that an ipv4 SYN sent to an ipv6 socket with TCP-AO triggered WARN * Implement un-namespaced sysctl disabled this feature by default * Allocate new key before removing any old one in setsockopt (Dmitry) * Remove tcp_authopt_key_info.local_id because it's no longer used (Dmitry) * Propagate errors from TCP_AUTHOPT getsockopt (Dmitry) * Fix no-longer-correct TCP_AUTHOPT_KEY_DEL docs (Dmitry) * Simplify crypto allocation (Eric) * Use kzmalloc instead of __GFP_ZERO (Eric) * Add static_key_false tcp_authopt_needed (Eric) * Clear authopt_info copied from oldsk in __tcp_authopt_openreq (Eric) * Replace memcmp in ipv4 and ipv6 addr comparisons (Eric) * Export symbols for CONFIG_IPV6=m (kernel test robot) * Mark more functions static (kernel test robot) * Fix build with CONFIG_PROVE_RCU_LIST=y (kernel test robot) Link: https://lore.kernel.org/netdev/cover.1629840814.git.cdleonard@gmail.com/ Changes since RFCv2: * Removed local_id from ABI and match on send_id/recv_id/addr * Add all relevant out-of-tree tests to tools/testing/selftests * Return an error instead of ignoring unknown flags, hopefully this makes it easier to extend. * Check sk_family before __tcp_authopt_info_get_or_create in tcp_set_authopt_key * Use sock_owned_by_me instead of WARN_ON(!lockdep_sock_is_held(sk)) * Fix some intermediate build failures reported by kbuild robot * Improve documentation Link: https://lore.kernel.org/netdev/cover.1628544649.git.cdleonard@gmail.com/ Changes since RFC: * Split into per-topic commits for ease of review. The intermediate commits compile with a few "unused function" warnings and don't do anything useful by themselves. * Add ABI documention including kernel-doc on uapi * Fix lockdep warnings from crypto by creating pools with one shash for each cpu * Accept short options to setsockopt by padding with zeros; this approach allows increasing the size of the structs in the future. * Support for aes-128-cmac-96 * Support for binding addresses to keys in a way similar to old tcp_md5 * Add support for retrieving received keyid/rnextkeyid and controling the keyid/rnextkeyid being sent. Link: https://lore.kernel.org/netdev/01383a8751e97ef826ef2adf93bfde3a08195a43.162… Leonard Crestez (19): tcp: authopt: Initial support and key management docs: Add user documentation for tcp_authopt selftests: Initial tcp_authopt test module selftests: tcp_authopt: Initial sockopt manipulation tcp: authopt: Add crypto initialization tcp: authopt: Compute packet signatures tcp: authopt: Hook into tcp core tcp: authopt: Disable via sysctl by default selftests: tcp_authopt: Test key address binding tcp: ipv6: Add AO signing for tcp_v6_send_response tcp: authopt: Add support for signing skb-less replies tcp: ipv4: Add AO signing for skb-less replies selftests: tcp_authopt: Add scapy-based packet signing code selftests: tcp_authopt: Add packet-level tests selftests: Initial tcp_authopt support for nettest selftests: Initial tcp_authopt support for fcnal-test selftests: Add -t tcp_authopt option for fcnal-test.sh tcp: authopt: Add key selection controls selftests: tcp_authopt: Add tests for rollover Documentation/networking/index.rst | 1 + Documentation/networking/ip-sysctl.rst | 6 + Documentation/networking/tcp_authopt.rst | 69 + include/linux/tcp.h | 9 + include/net/tcp.h | 1 + include/net/tcp_authopt.h | 200 +++ include/uapi/linux/snmp.h | 1 + include/uapi/linux/tcp.h | 110 ++ net/ipv4/Kconfig | 14 + net/ipv4/Makefile | 1 + net/ipv4/proc.c | 1 + net/ipv4/sysctl_net_ipv4.c | 10 + net/ipv4/tcp.c | 30 + net/ipv4/tcp_authopt.c | 1450 +++++++++++++++++ net/ipv4/tcp_input.c | 17 + net/ipv4/tcp_ipv4.c | 101 +- net/ipv4/tcp_minisocks.c | 12 + net/ipv4/tcp_output.c | 80 +- net/ipv6/tcp_ipv6.c | 56 +- tools/testing/selftests/net/fcnal-test.sh | 34 + tools/testing/selftests/net/nettest.c | 34 +- tools/testing/selftests/tcp_authopt/Makefile | 5 + .../testing/selftests/tcp_authopt/README.rst | 15 + tools/testing/selftests/tcp_authopt/config | 6 + .../selftests/tcp_authopt/requirements.txt | 40 + tools/testing/selftests/tcp_authopt/run.sh | 15 + tools/testing/selftests/tcp_authopt/setup.cfg | 17 + tools/testing/selftests/tcp_authopt/setup.py | 5 + .../tcp_authopt/tcp_authopt_test/__init__.py | 0 .../tcp_authopt/tcp_authopt_test/conftest.py | 41 + .../full_tcp_sniff_session.py | 81 + .../tcp_authopt_test/linux_tcp_authopt.py | 248 +++ .../tcp_authopt_test/linux_tcp_md5sig.py | 95 ++ .../tcp_authopt_test/netns_fixture.py | 83 + .../tcp_authopt_test/scapy_conntrack.py | 150 ++ .../tcp_authopt_test/scapy_tcp_authopt.py | 211 +++ .../tcp_authopt_test/scapy_utils.py | 176 ++ .../tcp_authopt/tcp_authopt_test/server.py | 95 ++ .../tcp_authopt/tcp_authopt_test/sockaddr.py | 112 ++ .../tcp_connection_fixture.py | 269 +++ .../tcp_authopt/tcp_authopt_test/test_bind.py | 145 ++ .../tcp_authopt_test/test_rollover.py | 180 ++ .../tcp_authopt_test/test_sockopt.py | 185 +++ .../tcp_authopt_test/test_vectors.py | 359 ++++ .../tcp_authopt_test/test_verify_capture.py | 555 +++++++ .../tcp_authopt/tcp_authopt_test/utils.py | 102 ++ .../tcp_authopt/tcp_authopt_test/validator.py | 127 ++ 47 files changed, 5544 insertions(+), 10 deletions(-) create mode 100644 Documentation/networking/tcp_authopt.rst create mode 100644 include/net/tcp_authopt.h create mode 100644 net/ipv4/tcp_authopt.c create mode 100644 tools/testing/selftests/tcp_authopt/Makefile create mode 100644 tools/testing/selftests/tcp_authopt/README.rst create mode 100644 tools/testing/selftests/tcp_authopt/config create mode 100644 tools/testing/selftests/tcp_authopt/requirements.txt create mode 100755 tools/testing/selftests/tcp_authopt/run.sh create mode 100644 tools/testing/selftests/tcp_authopt/setup.cfg create mode 100644 tools/testing/selftests/tcp_authopt/setup.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/__init__.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/conftest.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/full_tcp_sniff_session.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/linux_tcp_authopt.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/linux_tcp_md5sig.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/netns_fixture.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/scapy_conntrack.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/scapy_tcp_authopt.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/scapy_utils.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/server.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/sockaddr.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/tcp_connection_fixture.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/test_bind.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/test_rollover.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/test_sockopt.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/test_vectors.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/test_verify_capture.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/utils.py create mode 100644 tools/testing/selftests/tcp_authopt/tcp_authopt_test/validator.py base-commit: 07b855628c226511542d0911cba1b180541fbb84 -- 2.25.1

4 years

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Introduction: I am a Linux and open source software enthusiast

by Turritopsis Dohrnii Teo En Ming

Subject: Introduction: I am a Linux and open source software enthusiast Greetings from Singapore, My name is Mr. Turritopsis Dohrnii Teo En Ming, 43 years old as of 25 September 2021. My country is Singapore. Presently I am an IT Consultant with a System Integrator (SI)/computer firm in Singapore. I am also a Linux and open source software and information technology enthusiast. You can read my autobiography on my redundant blogs. The title of my autobiography is: "Autobiography of Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming (Very First Draft, Lots More to Add in Future)" Links to my redundant blogs (Blogger and Wordpress) can be found in my email signature below. These are my main blogs. I have three other redundant blogs, namely: https://teo-en-ming.tumblr.com/ https://teo-en-ming.medium.com/ https://teo-en-ming.livejournal.com/ Future/subsequent versions of my autobiography will be published on my redundant blogs. My Blog Books (in PDF format) are also available for download on my redundant blogs. I have also published many guides, howtos, tutorials, and information technology articles on my redundant blogs. Thank you very much. -----BEGIN EMAIL SIGNATURE----- The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Targeted Individual Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 and refugee seeking attempts at the United Nations Refugee Agency Bangkok (21 Mar 2017), in Taiwan (5 Aug 2019) and Australia (25 Dec 2019 to 9 Jan 2020): [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming -----END EMAIL SIGNATURE-----

4 years

1
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[PATCH 1/3] userfaultfd/selftests: fix feature support detection

by Axel Rasmussen

Currently, the test decides whether or not to test certain features (e.g., writeprotect support) essentially by examining command-line arguments. For example, if we're testing anonymous memory, then we should test writeprotect support as well (since it generally is supported for anonymous). This is broken, however. Take writeprotect support as an example: sure it's supported for anon, but it also requires that we have CONFIG_HAVE_ARCH_USERFAULTFD_WP. I.e., it is not supported at all on aarch64. So, running the test on such an arch fails: it tries to test writeprotect for anon, but since it isn't *actually* supported, it fails. So, instead of checking command-line arguments to the test, check the features the way the UFFD API intends: when we open a new userfaultfd, pass in the feature(s) this test case would like to try to exercise. The kernel reports back a subset of those features which are actually supported: check these returned flags to see if the features are *actually* supported. (For a couple of cases, where *registration* would fail [with -EINVAL] even though UFFDIO_API reports the feature as supported, we have to check test_type as well as the feature flag.) In some cases, we check immediately after opening the userfaultfd, and if the features are missing, we skip the entire test. In some other cases, we can proceed with "most" of the test, only skipping a few pieces. This lets us remove the global test_uffdio_wp and test_uffdio_minor variables entirely. Signed-off-by: Axel Rasmussen <axelrasmussen(a)google.com> --- tools/testing/selftests/vm/userfaultfd.c | 94 +++++++++++------------- 1 file changed, 43 insertions(+), 51 deletions(-) diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 10ab56c2484a..2366caf90435 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -79,10 +79,6 @@ static int test_type; #define ALARM_INTERVAL_SECS 10 static volatile bool test_uffdio_copy_eexist = true; static volatile bool test_uffdio_zeropage_eexist = true; -/* Whether to test uffd write-protection */ -static bool test_uffdio_wp = false; -/* Whether to test uffd minor faults */ -static bool test_uffdio_minor = false; static bool map_shared; static int shm_fd; @@ -90,6 +86,7 @@ static int huge_fd; static char *huge_fd_off0; static unsigned long long *count_verify; static int uffd = -1; +static uint64_t uffd_features; static int uffd_flags, finished, *pipefd; static char *area_src, *area_src_alias, *area_dst, *area_dst_alias; static char *zeropage; @@ -345,7 +342,7 @@ static struct uffd_test_ops hugetlb_uffd_test_ops = { static struct uffd_test_ops *uffd_test_ops; -static void userfaultfd_open(uint64_t *features) +static void userfaultfd_open(uint64_t features) { struct uffdio_api uffdio_api; @@ -355,14 +352,20 @@ static void userfaultfd_open(uint64_t *features) uffd_flags = fcntl(uffd, F_GETFD, NULL); uffdio_api.api = UFFD_API; - uffdio_api.features = *features; + uffdio_api.features = features; if (ioctl(uffd, UFFDIO_API, &uffdio_api)) err("UFFDIO_API failed.\nPlease make sure to " "run with either root or ptrace capability."); if (uffdio_api.api != UFFD_API) err("UFFDIO_API error: %" PRIu64, (uint64_t)uffdio_api.api); - *features = uffdio_api.features; + uffd_features = uffdio_api.features; +} + +static inline bool uffd_wp_supported(void) +{ + return test_type == TEST_ANON && + (uffd_features & UFFD_FEATURE_PAGEFAULT_FLAG_WP); } static inline void munmap_area(void **area) @@ -397,6 +400,7 @@ static void uffd_test_ctx_clear(void) err("close uffd"); uffd = -1; } + uffd_features = 0; huge_fd_off0 = NULL; munmap_area((void **)&area_src); @@ -405,7 +409,7 @@ static void uffd_test_ctx_clear(void) munmap_area((void **)&area_dst_alias); } -static void uffd_test_ctx_init_ext(uint64_t *features) +static void uffd_test_ctx_init(uint64_t features) { unsigned long nr, cpu; @@ -445,11 +449,6 @@ static void uffd_test_ctx_init_ext(uint64_t *features) err("pipe"); } -static inline void uffd_test_ctx_init(uint64_t features) -{ - uffd_test_ctx_init_ext(&features); -} - static int my_bcmp(char *str1, char *str2, size_t n) { unsigned long i; @@ -587,7 +586,7 @@ static int __copy_page(int ufd, unsigned long offset, bool retry) uffdio_copy.dst = (unsigned long) area_dst + offset; uffdio_copy.src = (unsigned long) area_src + offset; uffdio_copy.len = page_size; - if (test_uffdio_wp) + if (uffd_wp_supported()) uffdio_copy.mode = UFFDIO_COPY_MODE_WP; else uffdio_copy.mode = 0; @@ -778,7 +777,7 @@ static void *background_thread(void *arg) * at least the first half of the pages mapped already which * can be write-protected for testing */ - if (test_uffdio_wp) + if (uffd_wp_supported()) wp_range(uffd, (unsigned long)area_dst + start_nr * page_size, nr_pages_per_cpu * page_size, true); @@ -1062,12 +1061,12 @@ static int userfaultfd_zeropage_test(void) printf("testing UFFDIO_ZEROPAGE: "); fflush(stdout); - uffd_test_ctx_init(0); + uffd_test_ctx_init(UFFD_FEATURE_PAGEFAULT_FLAG_WP); uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) + if (uffd_wp_supported()) uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) err("register failure"); @@ -1089,7 +1088,7 @@ static int userfaultfd_events_test(void) struct uffdio_register uffdio_register; unsigned long expected_ioctls; pthread_t uffd_mon; - int err, features; + int err; pid_t pid; char c; struct uffd_stats stats = { 0 }; @@ -1097,16 +1096,15 @@ static int userfaultfd_events_test(void) printf("testing events (fork, remap, remove): "); fflush(stdout); - features = UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | - UFFD_FEATURE_EVENT_REMOVE; - uffd_test_ctx_init(features); + uffd_test_ctx_init(UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_EVENT_REMAP | + UFFD_FEATURE_EVENT_REMOVE | UFFD_FEATURE_PAGEFAULT_FLAG_WP); fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) + if (uffd_wp_supported()) uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) err("register failure"); @@ -1144,7 +1142,7 @@ static int userfaultfd_sig_test(void) unsigned long expected_ioctls; unsigned long userfaults; pthread_t uffd_mon; - int err, features; + int err; pid_t pid; char c; struct uffd_stats stats = { 0 }; @@ -1152,15 +1150,15 @@ static int userfaultfd_sig_test(void) printf("testing signal delivery: "); fflush(stdout); - features = UFFD_FEATURE_EVENT_FORK|UFFD_FEATURE_SIGBUS; - uffd_test_ctx_init(features); + uffd_test_ctx_init(UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_SIGBUS | + UFFD_FEATURE_PAGEFAULT_FLAG_WP); fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) + if (uffd_wp_supported()) uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) err("register failure"); @@ -1209,25 +1207,23 @@ static int userfaultfd_minor_test(void) void *expected_page; char c; struct uffd_stats stats = { 0 }; - uint64_t req_features, features_out; - - if (!test_uffdio_minor) - return 0; + uint64_t features; printf("testing minor faults: "); fflush(stdout); - if (test_type == TEST_HUGETLB) - req_features = UFFD_FEATURE_MINOR_HUGETLBFS; + if (test_type == TEST_HUGETLB && map_shared) + features = UFFD_FEATURE_MINOR_HUGETLBFS; else if (test_type == TEST_SHMEM) - req_features = UFFD_FEATURE_MINOR_SHMEM; - else - return 1; + features = UFFD_FEATURE_MINOR_SHMEM; + else { + printf("skipping test due to unsupported memory type\n"); + return 0; + } - features_out = req_features; - uffd_test_ctx_init_ext(&features_out); + uffd_test_ctx_init(features); /* If kernel reports required features aren't supported, skip test. */ - if ((features_out & req_features) != req_features) { + if ((uffd_features & features) != features) { printf("skipping test due to lack of feature support\n"); fflush(stdout); return 0; @@ -1349,10 +1345,6 @@ static void userfaultfd_pagemap_test(unsigned int test_pgsize) int pagemap_fd; uint64_t value; - /* Pagemap tests uffd-wp only */ - if (!test_uffdio_wp) - return; - /* Not enough memory to test this page size */ if (test_pgsize > nr_pages * page_size) return; @@ -1361,7 +1353,12 @@ static void userfaultfd_pagemap_test(unsigned int test_pgsize) /* Flush so it doesn't flush twice in parent/child later */ fflush(stdout); - uffd_test_ctx_init(0); + uffd_test_ctx_init(UFFD_FEATURE_PAGEFAULT_FLAG_WP); + /* Pagemap tests uffd-wp only */ + if (!uffd_wp_supported()) { + printf("skipping test due to lack of feature support\n"); + return; + } if (test_pgsize > page_size) { /* This is a thp test */ @@ -1426,7 +1423,7 @@ static int userfaultfd_stress(void) struct uffdio_register uffdio_register; struct uffd_stats uffd_stats[nr_cpus]; - uffd_test_ctx_init(0); + uffd_test_ctx_init(UFFD_FEATURE_PAGEFAULT_FLAG_WP); if (posix_memalign(&area, page_size, page_size)) err("out of memory"); @@ -1464,7 +1461,7 @@ static int userfaultfd_stress(void) uffdio_register.range.start = (unsigned long) area_dst; uffdio_register.range.len = nr_pages * page_size; uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING; - if (test_uffdio_wp) + if (uffd_wp_supported()) uffdio_register.mode |= UFFDIO_REGISTER_MODE_WP; if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) err("register failure"); @@ -1513,7 +1510,7 @@ static int userfaultfd_stress(void) return 1; /* Clear all the write protections if there is any */ - if (test_uffdio_wp) + if (uffd_wp_supported()) wp_range(uffd, (unsigned long)area_dst, nr_pages * page_size, false); @@ -1595,8 +1592,6 @@ static void set_test_type(const char *type) if (!strcmp(type, "anon")) { test_type = TEST_ANON; uffd_test_ops = &anon_uffd_test_ops; - /* Only enable write-protect test for anonymous test */ - test_uffdio_wp = true; } else if (!strcmp(type, "hugetlb")) { test_type = TEST_HUGETLB; uffd_test_ops = &hugetlb_uffd_test_ops; @@ -1604,13 +1599,10 @@ static void set_test_type(const char *type) map_shared = true; test_type = TEST_HUGETLB; uffd_test_ops = &hugetlb_uffd_test_ops; - /* Minor faults require shared hugetlb; only enable here. */ - test_uffdio_minor = true; } else if (!strcmp(type, "shmem")) { map_shared = true; test_type = TEST_SHMEM; uffd_test_ops = &shmem_uffd_test_ops; - test_uffdio_minor = true; } else { err("Unknown test type: %s", type); } -- 2.33.0.464.g1972c5931b-goog

4 years

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