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ptrace06: Refactor the test using new LTP API
Link: https://lore.kernel.org/ltp/[email protected]/ Reviewed-by: Cyril Hrubis <[email protected]> Reviewed-by: Petr Vorel <[email protected]> Signed-off-by: Wei Gao <[email protected]> [ pvorel: remove unused ptrace06_child.c ] Signed-off-by: Petr Vorel <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,199 +1,220 @@ | ||
| // SPDX-License-Identifier: GPL-2.0-or-later | ||
| /* | ||
| * check out-of-bound/unaligned addresses given to | ||
| * Copyright (c) 2008 Analog Devices Inc. | ||
| * Copyright (c) Linux Test Project, 2008-2023 | ||
| * Copyright (c) 2025 Wei Gao <[email protected]> | ||
| */ | ||
|
|
||
| /*\ | ||
| * [Description] | ||
| * | ||
| * Check out-of-bound/unaligned addresses given to | ||
| * | ||
| * - {PEEK,POKE}{DATA,TEXT,USER} | ||
| * - {GET,SET}{,FG}REGS | ||
| * - {GET,SET}SIGINFO | ||
| * | ||
| * Copyright (c) 2008 Analog Devices Inc. | ||
| * | ||
| * Licensed under the GPL-2 or later | ||
| */ | ||
|
|
||
| #define _GNU_SOURCE | ||
|
|
||
| #include <errno.h> | ||
| #include <stdbool.h> | ||
| #include <stdio.h> | ||
| #include <stdlib.h> | ||
| #include <unistd.h> | ||
| #include <sys/ptrace.h> | ||
|
|
||
| #include "test.h" | ||
| #include "spawn_ptrace_child.h" | ||
| #include "tst_test.h" | ||
|
|
||
| /* this should be sizeof(struct user), but that info is only found | ||
| * in the kernel asm/user.h which is not exported to userspace. | ||
| */ | ||
|
|
||
| #if defined(__i386__) | ||
| #define SIZEOF_USER 284 | ||
| # define SIZEOF_USER 284 | ||
| #elif defined(__x86_64__) | ||
| #define SIZEOF_USER 928 | ||
| # define SIZEOF_USER 928 | ||
| #else | ||
| #define SIZEOF_USER 0x1000 /* just pick a big number */ | ||
| # define SIZEOF_USER 0x1000 /* just pick a big number */ | ||
| #endif | ||
|
|
||
| char *TCID = "ptrace06"; | ||
|
|
||
| struct test_case_t { | ||
| static struct test_case_t { | ||
| int request; | ||
| long addr; | ||
| long data; | ||
| } test_cases[] = { | ||
| { | ||
| PTRACE_PEEKDATA,.addr = 0}, { | ||
| PTRACE_PEEKDATA,.addr = 1}, { | ||
| PTRACE_PEEKDATA,.addr = 2}, { | ||
| PTRACE_PEEKDATA,.addr = 3}, { | ||
| PTRACE_PEEKDATA,.addr = -1}, { | ||
| PTRACE_PEEKDATA,.addr = -2}, { | ||
| PTRACE_PEEKDATA,.addr = -3}, { | ||
| PTRACE_PEEKDATA,.addr = -4}, { | ||
| PTRACE_PEEKTEXT,.addr = 0}, { | ||
| PTRACE_PEEKTEXT,.addr = 1}, { | ||
| PTRACE_PEEKTEXT,.addr = 2}, { | ||
| PTRACE_PEEKTEXT,.addr = 3}, { | ||
| PTRACE_PEEKTEXT,.addr = -1}, { | ||
| PTRACE_PEEKTEXT,.addr = -2}, { | ||
| PTRACE_PEEKTEXT,.addr = -3}, { | ||
| PTRACE_PEEKTEXT,.addr = -4}, { | ||
| PTRACE_PEEKUSER,.addr = SIZEOF_USER + 1}, { | ||
| PTRACE_PEEKUSER,.addr = SIZEOF_USER + 2}, { | ||
| PTRACE_PEEKUSER,.addr = SIZEOF_USER + 3}, { | ||
| PTRACE_PEEKUSER,.addr = SIZEOF_USER + 4}, { | ||
| PTRACE_PEEKUSER,.addr = -1}, { | ||
| PTRACE_PEEKUSER,.addr = -2}, { | ||
| PTRACE_PEEKUSER,.addr = -3}, { | ||
| PTRACE_PEEKUSER,.addr = -4}, { | ||
| PTRACE_POKEDATA,.addr = 0}, { | ||
| PTRACE_POKEDATA,.addr = 1}, { | ||
| PTRACE_POKEDATA,.addr = 2}, { | ||
| PTRACE_POKEDATA,.addr = 3}, { | ||
| PTRACE_POKEDATA,.addr = -1}, { | ||
| PTRACE_POKEDATA,.addr = -2}, { | ||
| PTRACE_POKEDATA,.addr = -3}, { | ||
| PTRACE_POKEDATA,.addr = -4}, { | ||
| PTRACE_POKETEXT,.addr = 0}, { | ||
| PTRACE_POKETEXT,.addr = 1}, { | ||
| PTRACE_POKETEXT,.addr = 2}, { | ||
| PTRACE_POKETEXT,.addr = 3}, { | ||
| PTRACE_POKETEXT,.addr = -1}, { | ||
| PTRACE_POKETEXT,.addr = -2}, { | ||
| PTRACE_POKETEXT,.addr = -3}, { | ||
| PTRACE_POKETEXT,.addr = -4}, { | ||
| PTRACE_POKEUSER,.addr = SIZEOF_USER + 1}, { | ||
| PTRACE_POKEUSER,.addr = SIZEOF_USER + 2}, { | ||
| PTRACE_POKEUSER,.addr = SIZEOF_USER + 3}, { | ||
| PTRACE_POKEUSER,.addr = SIZEOF_USER + 4}, { | ||
| PTRACE_POKEUSER,.addr = -1}, { | ||
| PTRACE_POKEUSER,.addr = -2}, { | ||
| PTRACE_POKEUSER,.addr = -3}, { | ||
| PTRACE_POKEUSER,.addr = -4}, | ||
| {PTRACE_PEEKDATA, .addr = 0}, | ||
| {PTRACE_PEEKDATA, .addr = 1}, | ||
| {PTRACE_PEEKDATA, .addr = 2}, | ||
| {PTRACE_PEEKDATA, .addr = 3}, | ||
| {PTRACE_PEEKDATA, .addr = -1}, | ||
| {PTRACE_PEEKDATA, .addr = -2}, | ||
| {PTRACE_PEEKDATA, .addr = -3}, | ||
| {PTRACE_PEEKDATA, .addr = -4}, | ||
| {PTRACE_PEEKTEXT, .addr = 0}, | ||
| {PTRACE_PEEKTEXT, .addr = 1}, | ||
| {PTRACE_PEEKTEXT, .addr = 2}, | ||
| {PTRACE_PEEKTEXT, .addr = 3}, | ||
| {PTRACE_PEEKTEXT, .addr = -1}, | ||
| {PTRACE_PEEKTEXT, .addr = -2}, | ||
| {PTRACE_PEEKTEXT, .addr = -3}, | ||
| {PTRACE_PEEKTEXT, .addr = -4}, | ||
| {PTRACE_PEEKUSER, .addr = SIZEOF_USER + 1}, | ||
| {PTRACE_PEEKUSER, .addr = SIZEOF_USER + 2}, | ||
| {PTRACE_PEEKUSER, .addr = SIZEOF_USER + 3}, | ||
| {PTRACE_PEEKUSER, .addr = SIZEOF_USER + 4}, | ||
| {PTRACE_PEEKUSER, .addr = -1}, | ||
| {PTRACE_PEEKUSER, .addr = -2}, | ||
| {PTRACE_PEEKUSER, .addr = -3}, | ||
| {PTRACE_PEEKUSER, .addr = -4}, | ||
| {PTRACE_POKEDATA, .addr = 0}, | ||
| {PTRACE_POKEDATA, .addr = 1}, | ||
| {PTRACE_POKEDATA, .addr = 2}, | ||
| {PTRACE_POKEDATA, .addr = 3}, | ||
| {PTRACE_POKEDATA, .addr = -1}, | ||
| {PTRACE_POKEDATA, .addr = -2}, | ||
| {PTRACE_POKEDATA, .addr = -3}, | ||
| {PTRACE_POKEDATA, .addr = -4}, | ||
| {PTRACE_POKETEXT, .addr = 0}, | ||
| {PTRACE_POKETEXT, .addr = 1}, | ||
| {PTRACE_POKETEXT, .addr = 2}, | ||
| {PTRACE_POKETEXT, .addr = 3}, | ||
| {PTRACE_POKETEXT, .addr = -1}, | ||
| {PTRACE_POKETEXT, .addr = -2}, | ||
| {PTRACE_POKETEXT, .addr = -3}, | ||
| {PTRACE_POKETEXT, .addr = -4}, | ||
| {PTRACE_POKEUSER, .addr = SIZEOF_USER + 1}, | ||
| {PTRACE_POKEUSER, .addr = SIZEOF_USER + 2}, | ||
| {PTRACE_POKEUSER, .addr = SIZEOF_USER + 3}, | ||
| {PTRACE_POKEUSER, .addr = SIZEOF_USER + 4}, | ||
| {PTRACE_POKEUSER, .addr = -1}, | ||
| {PTRACE_POKEUSER, .addr = -2}, | ||
| {PTRACE_POKEUSER, .addr = -3}, | ||
| {PTRACE_POKEUSER, .addr = -4}, | ||
| #ifdef PTRACE_GETREGS | ||
| { | ||
| PTRACE_GETREGS,.data = 0}, { | ||
| PTRACE_GETREGS,.data = 1}, { | ||
| PTRACE_GETREGS,.data = 2}, { | ||
| PTRACE_GETREGS,.data = 3}, { | ||
| PTRACE_GETREGS,.data = -1}, { | ||
| PTRACE_GETREGS,.data = -2}, { | ||
| PTRACE_GETREGS,.data = -3}, { | ||
| PTRACE_GETREGS,.data = -4}, | ||
| {PTRACE_GETREGS, .data = 0}, | ||
| {PTRACE_GETREGS, .data = 1}, | ||
| {PTRACE_GETREGS, .data = 2}, | ||
| {PTRACE_GETREGS, .data = 3}, | ||
| {PTRACE_GETREGS, .data = -1}, | ||
| {PTRACE_GETREGS, .data = -2}, | ||
| {PTRACE_GETREGS, .data = -3}, | ||
| {PTRACE_GETREGS, .data = -4}, | ||
| #endif | ||
| #ifdef PTRACE_GETFGREGS | ||
| { | ||
| PTRACE_GETFGREGS,.data = 0}, { | ||
| PTRACE_GETFGREGS,.data = 1}, { | ||
| PTRACE_GETFGREGS,.data = 2}, { | ||
| PTRACE_GETFGREGS,.data = 3}, { | ||
| PTRACE_GETFGREGS,.data = -1}, { | ||
| PTRACE_GETFGREGS,.data = -2}, { | ||
| PTRACE_GETFGREGS,.data = -3}, { | ||
| PTRACE_GETFGREGS,.data = -4}, | ||
| {PTRACE_GETFGREGS, .data = 0}, | ||
| {PTRACE_GETFGREGS, .data = 1}, | ||
| {PTRACE_GETFGREGS, .data = 2}, | ||
| {PTRACE_GETFGREGS, .data = 3}, | ||
| {PTRACE_GETFGREGS, .data = -1}, | ||
| {PTRACE_GETFGREGS, .data = -2}, | ||
| {PTRACE_GETFGREGS, .data = -3}, | ||
| {PTRACE_GETFGREGS, .data = -4}, | ||
| #endif | ||
| #ifdef PTRACE_SETREGS | ||
| { | ||
| PTRACE_SETREGS,.data = 0}, { | ||
| PTRACE_SETREGS,.data = 1}, { | ||
| PTRACE_SETREGS,.data = 2}, { | ||
| PTRACE_SETREGS,.data = 3}, { | ||
| PTRACE_SETREGS,.data = -1}, { | ||
| PTRACE_SETREGS,.data = -2}, { | ||
| PTRACE_SETREGS,.data = -3}, { | ||
| PTRACE_SETREGS,.data = -4}, | ||
| {PTRACE_SETREGS, .data = 0}, | ||
| {PTRACE_SETREGS, .data = 1}, | ||
| {PTRACE_SETREGS, .data = 2}, | ||
| {PTRACE_SETREGS, .data = 3}, | ||
| {PTRACE_SETREGS, .data = -1}, | ||
| {PTRACE_SETREGS, .data = -2}, | ||
| {PTRACE_SETREGS, .data = -3}, | ||
| {PTRACE_SETREGS, .data = -4}, | ||
| #endif | ||
| #ifdef PTRACE_SETFGREGS | ||
| { | ||
| PTRACE_SETFGREGS,.data = 0}, { | ||
| PTRACE_SETFGREGS,.data = 1}, { | ||
| PTRACE_SETFGREGS,.data = 2}, { | ||
| PTRACE_SETFGREGS,.data = 3}, { | ||
| PTRACE_SETFGREGS,.data = -1}, { | ||
| PTRACE_SETFGREGS,.data = -2}, { | ||
| PTRACE_SETFGREGS,.data = -3}, { | ||
| PTRACE_SETFGREGS,.data = -4}, | ||
| {PTRACE_SETFGREGS, .data = 0}, | ||
| {PTRACE_SETFGREGS, .data = 1}, | ||
| {PTRACE_SETFGREGS, .data = 2}, | ||
| {PTRACE_SETFGREGS, .data = 3}, | ||
| {PTRACE_SETFGREGS, .data = -1}, | ||
| {PTRACE_SETFGREGS, .data = -2}, | ||
| {PTRACE_SETFGREGS, .data = -3}, | ||
| {PTRACE_SETFGREGS, .data = -4}, | ||
| #endif | ||
| #if HAVE_DECL_PTRACE_GETSIGINFO | ||
| { | ||
| PTRACE_GETSIGINFO,.data = 0}, { | ||
| PTRACE_GETSIGINFO,.data = 1}, { | ||
| PTRACE_GETSIGINFO,.data = 2}, { | ||
| PTRACE_GETSIGINFO,.data = 3}, { | ||
| PTRACE_GETSIGINFO,.data = -1}, { | ||
| PTRACE_GETSIGINFO,.data = -2}, { | ||
| PTRACE_GETSIGINFO,.data = -3}, { | ||
| PTRACE_GETSIGINFO,.data = -4}, | ||
| {PTRACE_GETSIGINFO, .data = 0}, | ||
| {PTRACE_GETSIGINFO, .data = 1}, | ||
| {PTRACE_GETSIGINFO, .data = 2}, | ||
| {PTRACE_GETSIGINFO, .data = 3}, | ||
| {PTRACE_GETSIGINFO, .data = -1}, | ||
| {PTRACE_GETSIGINFO, .data = -2}, | ||
| {PTRACE_GETSIGINFO, .data = -3}, | ||
| {PTRACE_GETSIGINFO, .data = -4}, | ||
| #endif | ||
| #if HAVE_DECL_PTRACE_SETSIGINFO | ||
| { | ||
| PTRACE_SETSIGINFO,.data = 0}, { | ||
| PTRACE_SETSIGINFO,.data = 1}, { | ||
| PTRACE_SETSIGINFO,.data = 2}, { | ||
| PTRACE_SETSIGINFO,.data = 3}, { | ||
| PTRACE_SETSIGINFO,.data = -1}, { | ||
| PTRACE_SETSIGINFO,.data = -2}, { | ||
| PTRACE_SETSIGINFO,.data = -3}, { | ||
| PTRACE_SETSIGINFO,.data = -4}, | ||
| {PTRACE_SETSIGINFO, .data = 0}, | ||
| {PTRACE_SETSIGINFO, .data = 1}, | ||
| {PTRACE_SETSIGINFO, .data = 2}, | ||
| {PTRACE_SETSIGINFO, .data = 3}, | ||
| {PTRACE_SETSIGINFO, .data = -1}, | ||
| {PTRACE_SETSIGINFO, .data = -2}, | ||
| {PTRACE_SETSIGINFO, .data = -3}, | ||
| {PTRACE_SETSIGINFO, .data = -4}, | ||
| #endif | ||
| }; | ||
|
|
||
| #define SPT(x)[PTRACE_##x] = #x, | ||
| static char *strings[] = { | ||
| SPT(TRACEME) | ||
| SPT(PEEKTEXT) | ||
| SPT(PEEKDATA) | ||
| SPT(PEEKUSER) | ||
| SPT(POKETEXT) | ||
| SPT(POKEDATA) | ||
| SPT(POKEUSER) | ||
| #ifdef PTRACE_GETREGS | ||
| SPT(GETREGS) | ||
| #endif | ||
| #ifdef PTRACE_SETREGS | ||
| SPT(SETREGS) | ||
| #endif | ||
| #ifdef PTRACE_GETSIGINFO | ||
| SPT(GETSIGINFO) | ||
| #endif | ||
| #ifdef PTRACE_SETSIGINFO | ||
| SPT(SETSIGINFO) | ||
| #endif | ||
| #ifdef PTRACE_GETFGREGS | ||
| SPT(GETFGREGS) | ||
| #endif | ||
| #ifdef PTRACE_SETFGREGS | ||
| SPT(SETFGREGS) | ||
| #endif | ||
| SPT(KILL) | ||
| SPT(SINGLESTEP) | ||
| }; | ||
|
|
||
| int TST_TOTAL = ARRAY_SIZE(test_cases); | ||
| static void child(void) | ||
| { | ||
| SAFE_PTRACE(PTRACE_TRACEME, 0, NULL, NULL); | ||
| raise(SIGSTOP); | ||
| exit(0); | ||
| } | ||
|
|
||
| int main(int argc, char *argv[]) | ||
| static void run(void) | ||
| { | ||
| size_t i; | ||
| long ret; | ||
| int saved_errno; | ||
| int pid; | ||
| int status; | ||
| int exp_errnos[] = {EIO, EFAULT}; | ||
|
|
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| pid = SAFE_FORK(); | ||
|
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| tst_parse_opts(argc, argv, NULL, NULL); | ||
| if (!pid) | ||
| child(); | ||
|
|
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| make_a_baby(argc, argv); | ||
| SAFE_WAIT(&status); | ||
|
|
||
| if (!WIFSTOPPED(status)) | ||
| tst_brk(TBROK, "child %d was not stopped", pid); | ||
|
|
||
| for (i = 0; i < ARRAY_SIZE(test_cases); ++i) { | ||
| struct test_case_t *tc = &test_cases[i]; | ||
|
|
||
| errno = 0; | ||
| ret = | ||
| ptrace(tc->request, pid, (void *)tc->addr, | ||
| (void *)tc->data); | ||
| saved_errno = errno; | ||
| if (ret != -1) | ||
| tst_resm(TFAIL, | ||
| "ptrace(%s, ..., %li, %li) returned %li instead of -1", | ||
| strptrace(tc->request), tc->addr, tc->data, | ||
| ret); | ||
| else if (saved_errno != EIO && saved_errno != EFAULT) | ||
| tst_resm(TFAIL, | ||
| "ptrace(%s, ..., %li, %li) expected errno EIO or EFAULT; actual: %i (%s)", | ||
| strptrace(tc->request), tc->addr, tc->data, | ||
| saved_errno, strerror(saved_errno)); | ||
| else | ||
| tst_resm(TPASS, | ||
| "ptrace(%s, ..., %li, %li) failed as expected", | ||
| strptrace(tc->request), tc->addr, tc->data); | ||
| TST_EXP_FAIL_ARR(ptrace(tc->request, pid, (void *)tc->addr, | ||
| (void *)tc->data), exp_errnos, ARRAY_SIZE(exp_errnos), | ||
| "ptrace(%s, ..., %li, %li) failed as expected", | ||
| strings[tc->request], tc->addr, tc->data); | ||
| } | ||
|
|
||
| /* hopefully this worked */ | ||
| ptrace(PTRACE_KILL, pid, NULL, NULL); | ||
| SAFE_PTRACE(PTRACE_CONT, pid, NULL, NULL); | ||
|
|
||
| tst_exit(); | ||
| } | ||
|
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||
| static struct tst_test test = { | ||
| .test_all = run, | ||
| .forks_child = 1, | ||
| }; |