* tests/.gitignore: Add process_vm_readv, process_vm_writev. * tests/Makefile.am (check_PROGRAMS): Likewise. (DECODER_TESTS): Add process_vm_readv.test, process_vm_writev.test. (EXTRA_DIST): Add process_vm_readv_writev.c. * tests/process_vm_readv.c: New file. * tests/process_vm_readv.test: Likewise. * tests/process_vm_readv_writev.c: Likewise. * tests/process_vm_writev.c: Likewise. * tests/process_vm_writev.test: Likewise. --- tests/.gitignore | 2 + tests/Makefile.am | 5 + tests/process_vm_readv.c | 18 +++ tests/process_vm_readv.test | 6 + tests/process_vm_readv_writev.c | 310 +++++++++++++++++++++++++++++++++++++++ tests/process_vm_writev.c | 18 +++ tests/process_vm_writev.test | 6 + 7 files changed, 365 insertions(+) create mode 100644 tests/process_vm_readv.c create mode 100755 tests/process_vm_readv.test create mode 100644 tests/process_vm_readv_writev.c create mode 100644 tests/process_vm_writev.c create mode 100755 tests/process_vm_writev.test
diff --git a/tests/.gitignore b/tests/.gitignore index 52af647..85798bb 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -197,6 +197,8 @@ preadv preadv-pwritev preadv2-pwritev2 prlimit64 +process_vm_readv +process_vm_writev pselect6 ptrace pwritev diff --git a/tests/Makefile.am b/tests/Makefile.am index 69423c0..c5ebb69 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -255,6 +255,8 @@ check_PROGRAMS = \ preadv-pwritev \ preadv2-pwritev2 \ prlimit64 \ + process_vm_readv \ + process_vm_writev \ pselect6 \ ptrace \ pwritev \ @@ -604,6 +606,8 @@ DECODER_TESTS = \ preadv2-pwritev2.test \ preadv.test \ prlimit64.test \ + process_vm_readv.test \ + process_vm_writev.test \ pselect6.test \ ptrace.test \ pwritev.test \ @@ -793,6 +797,7 @@ EXTRA_DIST = init.sh run.sh match.awk \ pipe.expected \ ppoll.expected \ ppoll-v.expected \ + process_vm_readv_writev.c \ quotactl.h \ setfsugid.c \ setreugid.c \ diff --git a/tests/process_vm_readv.c b/tests/process_vm_readv.c new file mode 100644 index 0000000..cfb8f78 --- /dev/null +++ b/tests/process_vm_readv.c @@ -0,0 +1,18 @@ +#include "tests.h" + +#include <asm/unistd.h> + +#ifdef __NR_process_vm_readv + +# define OP process_vm_readv +# define OP_NR __NR_process_vm_readv +# define OP_STR "process_vm_readv" +# define OP_WR 0 + +# include "process_vm_readv_writev.c" + +#else + +SKIP_MAIN_UNDEFINED("__NR_process_vm_readv"); + +#endif diff --git a/tests/process_vm_readv.test b/tests/process_vm_readv.test new file mode 100755 index 0000000..6ec17ca --- /dev/null +++ b/tests/process_vm_readv.test @@ -0,0 +1,6 @@ +#!/bin/sh + +# Check decoding of process_vm_readv syscall. + +. "${srcdir=.}/init.sh" +run_strace_match_diff -a1 -s5 diff --git a/tests/process_vm_readv_writev.c b/tests/process_vm_readv_writev.c new file mode 100644 index 0000000..9c20c5e --- /dev/null +++ b/tests/process_vm_readv_writev.c @@ -0,0 +1,310 @@ +/* + * Check decoding of process_vm_readv/process_vm_writev syscall. + * + * Copyright (c) 2016 Eugene Syromyatnikov <evg...@gmail.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <errno.h> +#include <inttypes.h> +#include <stdio.h> +#include <unistd.h> + +#include <sys/uio.h> + +#include "kernel_types.h" + +#if OP_WR +# define in_iovec rmt_iovec +# define out_iovec lcl_iovec +# define in_iov rmt_iov +# define out_iov lcl_iov +#else +# define in_iovec lcl_iovec +# define out_iovec rmt_iovec +# define in_iov lcl_iov +# define out_iov rmt_iov +#endif + +typedef void (*iov_print_fn)(const struct iovec *, const void *, long); + +enum { MAX_SEGM_COUNT = 2, MAX_STR_LEN = 5 }; + +struct print_iov_arg { + uint32_t count; + uint32_t valid :1, + string :1, + addr_term:1, + check_rc :1; + uint32_t str_segms; + uint8_t str_base[MAX_SEGM_COUNT]; + uint8_t str_size[MAX_SEGM_COUNT]; +}; + +static void +print_iov(const struct iovec *iov, const void *arg_ptr, long rc) +{ + const struct print_iov_arg *arg = arg_ptr; + uint32_t i; + uint32_t num_segm = 0; + uint64_t segm_offs = 0; + + if (!arg || !arg->valid) { + if (iov) + printf("%p", iov); + else + printf("NULL"); + + return; + } + + printf("["); + + for (i = 0; i < arg->count; i++) { + if (i) + printf(", "); + + if (i >= MAX_STR_LEN) { + printf("..."); + break; + } + + printf("{iov_base="); + if (arg->string && (!arg->check_rc || (rc != -1))) { + uint64_t str_left = iov[i].iov_len; + uint64_t pr_count = 0; + + printf("\""); + + while (str_left--) { + static const char oct_str[] = "01234567"; + uint8_t c = arg->str_base[num_segm] + segm_offs; + + if ((num_segm >= arg->str_segms) || + (num_segm >= MAX_SEGM_COUNT)) + error_msg_and_fail("print_iov: segment " + "count overrun"); + + if (pr_count++ < MAX_STR_LEN) + printf("\\%.1s%.1s%d", + (c >> 6) ? + oct_str + (c >> 6) : "", + (c >> 3) ? + oct_str + ((c >> 3) & 7) : "", + c & 7); + + segm_offs++; + + if (segm_offs >= arg->str_size[num_segm]) { + num_segm++; + segm_offs = 0; + } + } + + printf("\""); + + if (pr_count > MAX_STR_LEN) + printf("..."); + } else { + if (iov[i].iov_base) + printf("%p", iov[i].iov_base); + else + printf("NULL"); + } + + printf(", iov_len=%zu}", iov[i].iov_len); + } + + if (arg->addr_term) + printf(", %p", iov + arg->count); + + printf("]"); +} + +static void +do_call(kernel_ulong_t pid, + kernel_ulong_t local_iov, const char *local_arg, + kernel_ulong_t liovcnt, + kernel_ulong_t remote_iov, const char *remote_arg, + kernel_ulong_t riovcnt, + kernel_ulong_t flags, iov_print_fn pr_iov) +{ + long rc; + int saved_errno; + + rc = syscall(OP_NR, pid, local_iov, liovcnt, remote_iov, riovcnt, + flags); + saved_errno = errno; + + printf("%s(%d, ", OP_STR, (int) pid); + + if (pr_iov) + pr_iov((const struct iovec *) (uintptr_t) local_iov, local_arg, + rc); + else + printf("%s", local_arg); + + printf(", %llu, ", (unsigned long long) liovcnt); + + if (pr_iov) + pr_iov((const struct iovec *) (uintptr_t) remote_iov, + remote_arg, rc); + else + printf("%s", remote_arg); + + errno = saved_errno; + printf(", %llu, %llu) = %s\n", (unsigned long long) riovcnt, + (unsigned long long) flags, sprintrc(rc)); +} + +kernel_ulong_t +ptr_cast(void *ptr) +{ + return (kernel_ulong_t) (uintptr_t) ptr; +} + +int +main(void) +{ + enum { + SIZE_11 = 2, + SIZE_12 = 3, + SIZE_13 = 4, + SIZE_1 = SIZE_11 + SIZE_12 + SIZE_13, + SIZE_21 = 5, + SIZE_22 = 6, + SIZE_23 = 7, + SIZE_2 = SIZE_21 + SIZE_22 + SIZE_23, + }; + + enum { + SEGM1_BASE = 0x80, + SEGM2_BASE = 0xA0, + }; + + static const kernel_ulong_t bogus_pid = + (kernel_ulong_t) 0xbadfaceddeadca57ULL; + static const kernel_ulong_t bogus_iovcnt1 = + (kernel_ulong_t) 0xdec0ded1defaced2ULL; + static const kernel_ulong_t bogus_iovcnt2 = + (kernel_ulong_t) 0xdec0ded3defaced4ULL; + static const kernel_ulong_t bogus_flags = + (kernel_ulong_t) 0xdeadc0deda7adeadULL; + + pid_t my_pid = getpid(); + char *data1_out = tail_alloc(SIZE_1); + char *data2_out = tail_alloc(SIZE_2); + char *data1_in = tail_alloc(SIZE_2); + char *data2_in = tail_alloc(SIZE_1); + + struct iovec bogus_iovec[] = { + { data1_out + SIZE_1, (size_t) 0xdeadfaceca57beefULL }, + { data1_in + SIZE_2, (size_t) 0xbadc0dedda7adeadULL }, + { data2_out + SIZE_2, (size_t) 0xf157facedec0ded1ULL }, + { data2_in + SIZE_1, (size_t) 0xdefaced2bea7be57ULL }, + }; + + struct iovec out_iovec[] = { + { data1_out, SIZE_11 }, + { data1_out + SIZE_11, SIZE_12 }, + { data1_out + SIZE_11 + SIZE_12, SIZE_13 }, + { data2_out, SIZE_21 }, + { data2_out + SIZE_21, SIZE_22 }, + { data2_out + SIZE_21 + SIZE_22, SIZE_23 }, + }; + struct iovec in_iovec[] = { + { data1_in, SIZE_23 }, + { data1_in + SIZE_23, SIZE_22 }, + { data1_in + SIZE_23 + SIZE_22, SIZE_21 }, + { data2_in, SIZE_13 }, + { data2_in + SIZE_13, SIZE_12 }, + { data2_in + SIZE_13 + SIZE_12, SIZE_11 }, + }; + + struct iovec *bogus_iov = tail_memdup(bogus_iovec, sizeof(bogus_iovec)); + struct iovec *lcl_iov = tail_memdup(lcl_iovec, sizeof(lcl_iovec)); + struct iovec *rmt_iov = tail_memdup(rmt_iovec, sizeof(rmt_iovec)); + + struct print_iov_arg bogus_arg = { ARRAY_SIZE(bogus_iovec), 1 }; + struct print_iov_arg lcl_arg = { ARRAY_SIZE(lcl_iovec), 1, 1, 0, 0, + 2, {SEGM1_BASE, SEGM2_BASE}, {SIZE_1, SIZE_2} }; + struct print_iov_arg rmt_arg = { ARRAY_SIZE(rmt_iovec), 1 }; + + struct print_iov_arg bogus_arg_cut = + { ARRAY_SIZE(bogus_iovec) - 2, 1, 0, 1 }; + struct print_iov_arg lcl_arg_cut = + { ARRAY_SIZE(lcl_iovec) - 2, 1, 1, 1, 0, 2, + {SEGM1_BASE + SIZE_11 + SIZE_12, SEGM2_BASE}, + {SIZE_13, SIZE_2} }; + struct print_iov_arg rmt_arg_cut = + { ARRAY_SIZE(rmt_iovec) - 2, 1 }; + + + fill_memory_ex(data1_out, SIZE_1, SEGM1_BASE, SIZE_1); + fill_memory_ex(data2_out, SIZE_2, SEGM2_BASE, SIZE_2); + + + do_call(bogus_pid, (kernel_ulong_t) ARG_STR(NULL), bogus_iovcnt1, + (kernel_ulong_t) ARG_STR(NULL), bogus_iovcnt2, bogus_flags, + NULL); + + do_call(my_pid, ptr_cast(bogus_iov + ARRAY_SIZE(bogus_iovec)), + "[]", 0, ptr_cast(in_iov + ARRAY_SIZE(in_iovec)), "[]", + 0, 0, NULL); + do_call(my_pid, ptr_cast(bogus_iov + ARRAY_SIZE(bogus_iovec)), NULL, + bogus_iovcnt1, ptr_cast(in_iov + ARRAY_SIZE(in_iovec)), NULL, + bogus_iovcnt2, 0, print_iov); + + do_call(my_pid, ptr_cast(bogus_iov), (char *) &bogus_arg, + ARRAY_SIZE(bogus_iovec), ptr_cast(rmt_iov + 2), + (char *) &rmt_arg_cut, ARRAY_SIZE(rmt_iovec) - 2, 0, print_iov); + +#if !OP_WR + lcl_arg_cut.check_rc = 1; +#endif + + do_call(my_pid, ptr_cast(lcl_iov + 2), (char *) &lcl_arg_cut, + ARRAY_SIZE(lcl_iovec) - 1, ptr_cast(bogus_iov + 2), + (char *) &bogus_arg_cut, ARRAY_SIZE(bogus_iovec) - 1, 0, + print_iov); + + lcl_arg_cut.addr_term = 0; + + rmt_arg_cut.addr_term = 1; + rmt_arg_cut.count = 5; + + do_call(my_pid, ptr_cast(lcl_iov + 2), (char *) &lcl_arg_cut, + ARRAY_SIZE(lcl_iovec) - 2, ptr_cast(rmt_iov + 1), + (char *) &rmt_arg_cut, ARRAY_SIZE(rmt_iovec), 0, print_iov); + + /* Correct call */ + do_call(my_pid, ptr_cast(lcl_iov), (char *) &lcl_arg, + ARRAY_SIZE(lcl_iovec), ptr_cast(rmt_iov), (char *) &rmt_arg, + ARRAY_SIZE(rmt_iovec), 0, print_iov); + + puts("+++ exited with 0 +++"); + + return 0; +} diff --git a/tests/process_vm_writev.c b/tests/process_vm_writev.c new file mode 100644 index 0000000..6271c01 --- /dev/null +++ b/tests/process_vm_writev.c @@ -0,0 +1,18 @@ +#include "tests.h" + +#include <asm/unistd.h> + +#ifdef __NR_process_vm_writev + +# define OP process_vm_writev +# define OP_NR __NR_process_vm_writev +# define OP_STR "process_vm_writev" +# define OP_WR 1 + +# include "process_vm_readv_writev.c" + +#else + +SKIP_MAIN_UNDEFINED("__NR_process_vm_writev"); + +#endif diff --git a/tests/process_vm_writev.test b/tests/process_vm_writev.test new file mode 100755 index 0000000..91f1cbc --- /dev/null +++ b/tests/process_vm_writev.test @@ -0,0 +1,6 @@ +#!/bin/sh + +# Check decoding of process_vm_writev syscall. + +. "${srcdir=.}/init.sh" +run_strace_match_diff -a1 -s5 -- 1.7.10.4 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Strace-devel mailing list Strace-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/strace-devel