- linux-morello-ltp - op-lists.linaro.org

by Zachary Leaf

Looks like we're almost there with the bpf syscall patches on the linux-morello list[1]. Some of the bpf tests require either CAP_SYS_ADMIN or CAP_BPF, or enabling unprivileged bpf with: echo "0" > /proc/sys/kernel/unprivileged_bpf_disabled Thanks, Zach Review branch: https://git.morello-project.org/zdleaf/morello-linux-test-project/-/tree/mo… Kernel changes: https://git.morello-project.org/zdleaf/linux/-/tree/morello/bpf_v6 [1] https://op-lists.linaro.org/archives/list/linux-morello@op-lists.linaro.org… Zachary Leaf (4): bpf: update lapi with new bpf.h bpf: align tests with PCuABI/uAPI bpf: add bpf_valid_attr test runtest: add bpf to extended PCuABI syscall list include/lapi/bpf.h | 354 +++++++++++++----- runtest/morello_transitional_extended | 13 + testcases/kernel/syscalls/bpf/bpf_common.c | 10 +- testcases/kernel/syscalls/bpf/bpf_map01.c | 12 +- testcases/kernel/syscalls/bpf/bpf_prog03.c | 4 +- .../kernel/syscalls/bpf/bpf_valid_attr.c | 59 +++ 6 files changed, 349 insertions(+), 103 deletions(-) create mode 100644 testcases/kernel/syscalls/bpf/bpf_valid_attr.c -- 2.34.1

1 year, 2 months

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[PATCH v2 0/3] add eBPF support

by Zachary Leaf

Looks like we're almost there with the bpf syscall patches on the linux-morello list[1][2]. So seems like a good time to update the accompanying LTP tests. Some of the bpf tests require either CAP_SYS_ADMIN or CAP_BPF, or enabling unprivileged bpf with: echo "0" > /proc/sys/kernel/unprivileged_bpf_disabled Thanks, Zach Review branch: https://git.morello-project.org/zdleaf/morello-linux-test-project/-/tree/mo… Kernel changes: https://git.morello-project.org/zdleaf/linux/-/tree/morello/bpf_v5 [1] https://op-lists.linaro.org/archives/list/linux-morello@op-lists.linaro.org… [2] famous last words Zachary Leaf (3): bpf: align tests with PCuABI/uAPI bpf: add bpf_check_attr test runtest: add bpf to extended PCuABI syscall list include/lapi/bpf.h | 354 +++++++++++++----- runtest/morello_transitional_extended | 13 + .../kernel/syscalls/bpf/bpf_check_attr.c | 62 +++ testcases/kernel/syscalls/bpf/bpf_common.c | 10 +- testcases/kernel/syscalls/bpf/bpf_map01.c | 12 +- testcases/kernel/syscalls/bpf/bpf_prog03.c | 4 +- 6 files changed, 352 insertions(+), 103 deletions(-) create mode 100644 testcases/kernel/syscalls/bpf/bpf_check_attr.c -- 2.34.1

1 year, 2 months

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[PATCH 0/3] add eBPF support

by Zachary Leaf

Hi, Please see LTP changes related to bpf patches[1] posted on the linux-morello list. These patches are therefore dependent on those changes. Some of the bpf tests require either CAP_SYS_ADMIN or CAP_BPF, or enabling unprivileged bpf with: echo "0" > /proc/sys/kernel/unprivileged_bpf_disabled Thanks, Zach Review branch: https://git.morello-project.org/zdleaf/morello-linux-test-project/-/tree/mo… Kernel changes: https://git.morello-project.org/zdleaf/linux/-/tree/morello/bpf [1] https://op-lists.linaro.org/archives/list/linux-morello@op-lists.linaro.org… Zachary Leaf (3): bpf: align tests with PCuABI/uAPI bpf: add bpf_prog_load test runtest: add bpf to extended PCuABI syscall list include/lapi/bpf.h | 296 ++++++++++++------ runtest/morello_transitional_extended | 11 + testcases/kernel/syscalls/bpf/bpf_common.c | 10 +- testcases/kernel/syscalls/bpf/bpf_map01.c | 12 +- testcases/kernel/syscalls/bpf/bpf_prog03.c | 4 +- testcases/kernel/syscalls/bpf/bpf_prog_load.c | 108 +++++++ 6 files changed, 339 insertions(+), 102 deletions(-) create mode 100644 testcases/kernel/syscalls/bpf/bpf_prog_load.c -- 2.34.1

1 year, 3 months

2
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[PATCH 0/3] Fixes for checked uaccess

by Kevin Brodsky

Hi, This series fixes a number of issues that the switch to checked (capability-based) uaccess [1] has revealed. These patches complete those that I have posted upstream [2] (and are already merged); they address issues that are likely to be too purecap-specific for upstream. Review branch: https://git.morello-project.org/kbrodsky-arm/morello-linux-ltp/-/commits/re… Cheers, Kevin [1] https://op-lists.linaro.org/archives/list/linux-morello@op-lists.linaro.org… [2] https://lore.kernel.org/ltp/20231023135647.2157030-1-kevin.brodsky@arm.com/ Kevin Brodsky (3): syscalls/clone3: Avoid truncating pointers in purecap syscalls/prctl: Fix invalid pointer cast in purecap syscalls/sockioctl: Avoid out-of-bound uaccess in purecap testcases/kernel/syscalls/clone3/clone301.c | 6 +++--- testcases/kernel/syscalls/prctl/prctl02.c | 15 +++++++++------ testcases/kernel/syscalls/sockioctl/sockioctl01.c | 2 +- 3 files changed, 13 insertions(+), 10 deletions(-) -- 2.38.1

1 year, 3 months

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[Announcement] Morello LTP 1.6.1 Integration drop - changelog

by Beata Michalska

Hi All, Morello LTP 1.6.1 integration drop is now available [1] Main changes: - syscalls/io_cancel: proper asynchronous I/O context secured for relevant tests so that an actual intended behaviour gets validated - syscalls/bpf: unified size of used buffers across related tests - syscalls/io_uring: support for capabilities with the updated version of io_uring_sqe struct; activated testcase for purecap runs of io_uring syscall test suite Enjoy! Contributions: -------------- Shout out to all the contributors and reviewers for all the work behind getting the changes in, much appreciated! git shortlog -s -e -n --invert-grep --grep="cherry" morello-release-1.6.0.. 3 Tudor Cretu <tudor.cretu(a)arm.com> 1 Beata Michalska <beata.michalska(a)arm.com> 1 Zachary Leaf <zachary.leaf(a)arm.com> --- [1] https://git.morello-project.org/morello/morello-linux-ltp/-/tags/morello-re…

1 year, 5 months

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[PATCH v2 0/2] Add io_uring support

by Tudor Cretu

This small series updates the io_uring tests and adds them to the morello_transitional_extended list. This series depends on the following Morello Linux series: "Support io_uring for Purecap apps" v2: - Remove changes to unused io_uring_sqe struct from the lapi header, and add a comment on why it's left unmodified - Remove the io_uring01 from relevant skip file - Update the io_uring dependency tag to "> morello-release-1.6.0" as it missed the boat Review branch: https://git.morello-project.org/tudcre01/morello-linux-ltp/-/commits/morell… Tudor Cretu (2): syscalls/io_uring: Align struct io_uring_sqe with new uABI runtest: Add io_uring tests to the extended PCuABI syscall list include/lapi/io_uring.h | 4 ++++ runtest/morello_transitional_extended | 4 ++++ runtest/syscalls_morello_purecap_skip | 4 ---- testcases/kernel/syscalls/io_uring/io_uring01.c | 4 ++-- testcases/kernel/syscalls/io_uring/io_uring02.c | 6 +++--- 5 files changed, 13 insertions(+), 9 deletions(-) -- 2.34.1

1 year, 6 months

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[PATCH v2] bpf: use consistent log size

by Zachary Leaf

Currently the log size for bpf_prog01 + bpf_prog02 is set to BUFSIZ which is defined by the libc in stdio.h. In glibc, this is set to the constant 8192. In other libc's this value can vary, e.g. in Musl this is set to 1024. For bpf_prog02 this is not large enough to store the verifier log resulting in the following test breakage: [...] bpf_common.c:123: TBROK: Failed verification: ENOSPC (28) This error is returned from kernel/bpf/verifier.c when the verifier log exceeds the user supplied buffer. Align bpf_prog01 + bpf_prog02 with other bpf tests and set the buffer size explicitly to 8192 in bpf_common.h. Signed-off-by: Zachary Leaf <zachary.leaf(a)arm.com> --- v2: - #define for all tests in bpf_common.h instead of duplicating Note: this fix is not dependent on any Morello kernel bpf syscall changes, so has been split out from those. Can be merged/reviewed independently of those. Looks to be upstreamable. Branch at: https://git.morello-project.org/zdleaf/morello-linux-test-project/-/tree/re… testcases/kernel/syscalls/bpf/bpf_common.h | 1 + testcases/kernel/syscalls/bpf/bpf_prog01.c | 2 +- testcases/kernel/syscalls/bpf/bpf_prog02.c | 4 ++-- testcases/kernel/syscalls/bpf/bpf_prog04.c | 1 - testcases/kernel/syscalls/bpf/bpf_prog05.c | 2 -- testcases/kernel/syscalls/bpf/bpf_prog06.c | 2 -- testcases/kernel/syscalls/bpf/bpf_prog07.c | 2 -- 7 files changed, 4 insertions(+), 10 deletions(-) diff --git a/testcases/kernel/syscalls/bpf/bpf_common.h b/testcases/kernel/syscalls/bpf/bpf_common.h index 39764ba1f..a0800d19b 100644 --- a/testcases/kernel/syscalls/bpf/bpf_common.h +++ b/testcases/kernel/syscalls/bpf/bpf_common.h @@ -13,6 +13,7 @@ #include "lapi/socket.h" #define BPF_MEMLOCK_ADD (2*1024*1024) +#define BUFSIZE 8192 /* map[array_indx] = reg_to_save * diff --git a/testcases/kernel/syscalls/bpf/bpf_prog01.c b/testcases/kernel/syscalls/bpf/bpf_prog01.c index e2fc80a9f..de4f68cef 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog01.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog01.c @@ -63,7 +63,7 @@ int load_prog(int fd) BPF_EXIT_INSN(), /* return r0 */ }; - bpf_init_prog_attr(attr, PROG, sizeof(PROG), log, BUFSIZ); + bpf_init_prog_attr(attr, PROG, sizeof(PROG), log, BUFSIZE); return bpf_load_prog(attr, log); } diff --git a/testcases/kernel/syscalls/bpf/bpf_prog02.c b/testcases/kernel/syscalls/bpf/bpf_prog02.c index b40ea0f1d..fd3e535c1 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog02.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog02.c @@ -64,7 +64,7 @@ static int load_prog(int fd) BPF_EXIT_INSN(), /* 26: return r0 */ }; - bpf_init_prog_attr(attr, insn, sizeof(insn), log, BUFSIZ); + bpf_init_prog_attr(attr, insn, sizeof(insn), log, BUFSIZE); return bpf_load_prog(attr, log); } @@ -117,7 +117,7 @@ static struct tst_test test = { .bufs = (struct tst_buffers []) { {&key, .size = sizeof(*key)}, {&val, .size = sizeof(*val)}, - {&log, .size = BUFSIZ}, + {&log, .size = BUFSIZE}, {&attr, .size = sizeof(*attr)}, {&msg, .size = sizeof(MSG)}, {}, diff --git a/testcases/kernel/syscalls/bpf/bpf_prog04.c b/testcases/kernel/syscalls/bpf/bpf_prog04.c index ebee26cbc..cf3bb1254 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog04.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog04.c @@ -28,7 +28,6 @@ #include "tst_capability.h" #include "bpf_common.h" -#define BUFSIZE 8192 #define CHECK_BPF_RET(x) ((x) >= 0 || ((x) == -1 && errno != EACCES)) static const char MSG[] = "Ahoj!"; diff --git a/testcases/kernel/syscalls/bpf/bpf_prog05.c b/testcases/kernel/syscalls/bpf/bpf_prog05.c index 2be5a2cc9..742beab0b 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog05.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog05.c @@ -52,8 +52,6 @@ #include "tst_capability.h" #include "bpf_common.h" -#define BUFSIZE 8192 - static const char MSG[] = "Ahoj!"; static char *msg; diff --git a/testcases/kernel/syscalls/bpf/bpf_prog06.c b/testcases/kernel/syscalls/bpf/bpf_prog06.c index c38dd8239..cee9616cf 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog06.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog06.c @@ -46,8 +46,6 @@ #include "lapi/bpf.h" #include "bpf_common.h" -#define BUFSIZE 8192 - static const char MSG[] = "Ahoj!"; static char *msg; diff --git a/testcases/kernel/syscalls/bpf/bpf_prog07.c b/testcases/kernel/syscalls/bpf/bpf_prog07.c index 50ff6eed0..dab5bb8ad 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog07.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog07.c @@ -46,8 +46,6 @@ #include "lapi/bpf.h" #include "bpf_common.h" -#define BUFSIZE 8192 - static const char MSG[] = "Ahoj!"; static char *msg; -- 2.34.1

1 year, 7 months

3
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[PATCH v3] syscalls/io_cancel: Setup context before running the test

by Tudor Cretu

The kernel might check for a valid context before checking the access of the pointers. In such a case, it will return EINVAL instead of EFAULT. Add an io_setup step to the test to ensure the io_cancel syscall fails because of the intended cause. Signed-off-by: Tudor Cretu <tudor.cretu(a)arm.com> --- This patch doesn't have any dependency, but it's a dependency to the following Morello Linux series: "Support aio shared memory usage in the Purecap apps" v2..v3: - Applied a similar change to io_cancel02.c as well Review branch: https://git.morello-project.org/tudcre01/morello-linux-ltp/-/commits/morell… --- The kernel might check for a valid context before checking the access of the pointers. In such a case, it will return EINVAL instead of EFAULT. Add an io_setup step to the test to ensure the io_cancel syscall fails because of the intended cause. Signed-off-by: Tudor Cretu <tudor.cretu(a)arm.com> --- .../kernel/syscalls/io_cancel/io_cancel01.c | 18 +++++++++++++++--- .../kernel/syscalls/io_cancel/io_cancel02.c | 17 +++++++++++++++-- 2 files changed, 30 insertions(+), 5 deletions(-) diff --git a/testcases/kernel/syscalls/io_cancel/io_cancel01.c b/testcases/kernel/syscalls/io_cancel/io_cancel01.c index f7e8bd061ed7..18c73845cfd3 100644 --- a/testcases/kernel/syscalls/io_cancel/io_cancel01.c +++ b/testcases/kernel/syscalls/io_cancel/io_cancel01.c @@ -18,11 +18,21 @@ #include "tst_test.h" #include "lapi/syscalls.h" -static void run(void) +static aio_context_t ctx; + +static void setup(void) +{ + TST_EXP_PASS_SILENT(tst_syscall(__NR_io_setup, 1, &ctx)); +} + +static void cleanup(void) { - aio_context_t ctx; + if (ctx) + TST_EXP_PASS_SILENT(tst_syscall(__NR_io_destroy, ctx)); +} - memset(&ctx, 0, sizeof(ctx)); +static void run(void) +{ TST_EXP_FAIL(tst_syscall(__NR_io_cancel, ctx, NULL, NULL), EFAULT); } @@ -31,5 +41,7 @@ static struct tst_test test = { "CONFIG_AIO=y", NULL }, + .setup = setup, + .cleanup = cleanup, .test_all = run, }; diff --git a/testcases/kernel/syscalls/io_cancel/io_cancel02.c b/testcases/kernel/syscalls/io_cancel/io_cancel02.c index 92ec65119202..5feb627753e3 100644 --- a/testcases/kernel/syscalls/io_cancel/io_cancel02.c +++ b/testcases/kernel/syscalls/io_cancel/io_cancel02.c @@ -20,10 +20,21 @@ #include <libaio.h> -static void run(void) +static io_context_t ctx; + +static void setup(void) +{ + TST_EXP_PASS_SILENT(io_setup(1, &ctx)); +} + +static void cleanup(void) { - io_context_t ctx; + if (ctx) + TST_EXP_PASS_SILENT(io_destroy(ctx)); +} +static void run(void) +{ memset(&ctx, 0, sizeof(ctx)); TEST(io_cancel(ctx, NULL, NULL)); @@ -46,6 +57,8 @@ static struct tst_test test = { "CONFIG_AIO=y", NULL }, + .setup = setup, + .cleanup = cleanup, .test_all = run, }; -- 2.34.1

1 year, 8 months

2
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[PATCH v4] syscalls/io_cancel: Setup context before running the test

by Tudor Cretu

The kernel might check for a valid context before checking the access of the pointers. In such a case, it will return EINVAL instead of EFAULT. Add an io_setup step to the test to ensure the io_cancel syscall fails because of the intended cause. Signed-off-by: Tudor Cretu <tudor.cretu(a)arm.com> --- This patch doesn't have any dependency, but it's a dependency to the following Morello Linux series: "Support aio shared memory usage in the Purecap apps" v3..v4: - Remove memset from io_cancel02 v2..v3: - Apply a similar change to io_cancel02.c as well Review branch: https://git.morello-project.org/tudcre01/morello-linux-ltp/-/commits/morell… --- .../kernel/syscalls/io_cancel/io_cancel01.c | 18 +++++++++++++++--- .../kernel/syscalls/io_cancel/io_cancel02.c | 18 +++++++++++++++--- 2 files changed, 30 insertions(+), 6 deletions(-) diff --git a/testcases/kernel/syscalls/io_cancel/io_cancel01.c b/testcases/kernel/syscalls/io_cancel/io_cancel01.c index f7e8bd061ed7..18c73845cfd3 100644 --- a/testcases/kernel/syscalls/io_cancel/io_cancel01.c +++ b/testcases/kernel/syscalls/io_cancel/io_cancel01.c @@ -18,11 +18,21 @@ #include "tst_test.h" #include "lapi/syscalls.h" -static void run(void) +static aio_context_t ctx; + +static void setup(void) +{ + TST_EXP_PASS_SILENT(tst_syscall(__NR_io_setup, 1, &ctx)); +} + +static void cleanup(void) { - aio_context_t ctx; + if (ctx) + TST_EXP_PASS_SILENT(tst_syscall(__NR_io_destroy, ctx)); +} - memset(&ctx, 0, sizeof(ctx)); +static void run(void) +{ TST_EXP_FAIL(tst_syscall(__NR_io_cancel, ctx, NULL, NULL), EFAULT); } @@ -31,5 +41,7 @@ static struct tst_test test = { "CONFIG_AIO=y", NULL }, + .setup = setup, + .cleanup = cleanup, .test_all = run, }; diff --git a/testcases/kernel/syscalls/io_cancel/io_cancel02.c b/testcases/kernel/syscalls/io_cancel/io_cancel02.c index 92ec65119202..bbbfbfe3c1ff 100644 --- a/testcases/kernel/syscalls/io_cancel/io_cancel02.c +++ b/testcases/kernel/syscalls/io_cancel/io_cancel02.c @@ -20,11 +20,21 @@ #include <libaio.h> -static void run(void) +static io_context_t ctx; + +static void setup(void) +{ + TST_EXP_PASS_SILENT(io_setup(1, &ctx)); +} + +static void cleanup(void) { - io_context_t ctx; + if (ctx) + TST_EXP_PASS_SILENT(io_destroy(ctx)); +} - memset(&ctx, 0, sizeof(ctx)); +static void run(void) +{ TEST(io_cancel(ctx, NULL, NULL)); if (TST_RET == 0) { @@ -46,6 +56,8 @@ static struct tst_test test = { "CONFIG_AIO=y", NULL }, + .setup = setup, + .cleanup = cleanup, .test_all = run, }; -- 2.34.1

1 year, 8 months

2
1
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[PATCH] bpf: fix log size for bpf_prog02

by Zachary Leaf

Currently log size is set to BUFSIZ which is defined by the libc in stdio.h. In glibc, this is set to the constant 8196. In other libc's this value can vary, e.g. in Musl this is set to 1024 which is not large enough to store the verifier log, resulting in the following test breakage: [...] bpf_common.c:123: TBROK: Failed verification: ENOSPC (28) This error is returned from kernel/bpf/verifier.c when the verifier log exceeds the user supplied buffer. Align bpf_prog02 with other bpf tests and set the buffer size explicitly to 8196 in a #define at the top of the file. Signed-off-by: Zachary Leaf <zachary.leaf(a)arm.com> --- Note: this fix is not dependent on any Morello kernel bpf syscall changes, so has been split out from those. Can be merged/reviewed independently of those. Looks to be upstreamable. Branch at: https://git.morello-project.org/zdleaf/morello-linux-test-project/-/tree/re… testcases/kernel/syscalls/bpf/bpf_prog02.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/testcases/kernel/syscalls/bpf/bpf_prog02.c b/testcases/kernel/syscalls/bpf/bpf_prog02.c index b40ea0f1d..927263a33 100644 --- a/testcases/kernel/syscalls/bpf/bpf_prog02.c +++ b/testcases/kernel/syscalls/bpf/bpf_prog02.c @@ -24,6 +24,7 @@ #include "bpf_common.h" #define A64INT (((uint64_t)1) << 60) +#define BUFSIZE 8196 const char MSG[] = "Ahoj!"; static char *msg; @@ -64,7 +65,7 @@ static int load_prog(int fd) BPF_EXIT_INSN(), /* 26: return r0 */ }; - bpf_init_prog_attr(attr, insn, sizeof(insn), log, BUFSIZ); + bpf_init_prog_attr(attr, insn, sizeof(insn), log, BUFSIZE); return bpf_load_prog(attr, log); } @@ -117,7 +118,7 @@ static struct tst_test test = { .bufs = (struct tst_buffers []) { {&key, .size = sizeof(*key)}, {&val, .size = sizeof(*val)}, - {&log, .size = BUFSIZ}, + {&log, .size = BUFSIZE}, {&attr, .size = sizeof(*attr)}, {&msg, .size = sizeof(MSG)}, {}, -- 2.34.1

1 year, 8 months

2
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linux-morello-ltp