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syscalls: rework syscall arguments processing (#1807)
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* syscalls: rework syscall arguments processing

* change naming for platform specific type (INT -> NATIVE)

* rework Linux syscall types

* fix Linux types

* add missing string printing

* fix definition of "enum __ptrace_request" syscall argument type

* improve syscall arguments check message

* fix missing definition for "ssize_t" type

* add missing processing of argument type with ARG_SIZE_64 size
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1ndahous3 authored Sep 18, 2024
1 parent c191459 commit a7a799f
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5 changes: 5 additions & 0 deletions src/plugins/Makefile.am
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Expand Up @@ -494,6 +494,11 @@ plugin_utils_check_SOURCES = plugin_utils_check.cpp
plugin_utils_check_CFLAGS = $(CHECK_CFLAGS)
plugin_utils_check_LDADD = $(CHECK_LIBS) plugin_utils.lo

check_PROGRAMS += syscalls/check
syscalls_check_SOURCES = syscalls/check.cpp
syscalls_check_CFLAGS = $(CHECK_CFLAGS)
syscalls_check_LDADD = $(CHECK_LIBS)

if PLUGIN_PROCMON
check_PROGRAMS += procmon/check
procmon_check_SOURCES = procmon/check.cpp
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147 changes: 147 additions & 0 deletions src/plugins/syscalls/check.cpp
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/*********************IMPORTANT DRAKVUF LICENSE TERMS***********************
* *
* DRAKVUF (C) 2014-2024 Tamas K Lengyel. *
* Tamas K Lengyel is hereinafter referred to as the author. *
* This program is free software; you may redistribute and/or modify it *
* under the terms of the GNU General Public License as published by the *
* Free Software Foundation; Version 2 ("GPL"), BUT ONLY WITH ALL OF THE *
* CLARIFICATIONS AND EXCEPTIONS DESCRIBED HEREIN. This guarantees your *
* right to use, modify, and redistribute this software under certain *
* conditions. If you wish to embed DRAKVUF technology into proprietary *
* software, alternative licenses can be acquired from the author. *
* *
* Note that the GPL places important restrictions on "derivative works", *
* yet it does not provide a detailed definition of that term. To avoid *
* misunderstandings, we interpret that term as broadly as copyright law *
* allows. For example, we consider an application to constitute a *
* derivative work for the purpose of this license if it does any of the *
* following with any software or content covered by this license *
* ("Covered Software"): *
* *
* o Integrates source code from Covered Software. *
* *
* o Reads or includes copyrighted data files. *
* *
* o Is designed specifically to execute Covered Software and parse the *
* results (as opposed to typical shell or execution-menu apps, which will *
* execute anything you tell them to). *
* *
* o Includes Covered Software in a proprietary executable installer. The *
* installers produced by InstallShield are an example of this. Including *
* DRAKVUF with other software in compressed or archival form does not *
* trigger this provision, provided appropriate open source decompression *
* or de-archiving software is widely available for no charge. For the *
* purposes of this license, an installer is considered to include Covered *
* Software even if it actually retrieves a copy of Covered Software from *
* another source during runtime (such as by downloading it from the *
* Internet). *
* *
* o Links (statically or dynamically) to a library which does any of the *
* above. *
* *
* o Executes a helper program, module, or script to do any of the above. *
* *
* This list is not exclusive, but is meant to clarify our interpretation *
* of derived works with some common examples. Other people may interpret *
* the plain GPL differently, so we consider this a special exception to *
* the GPL that we apply to Covered Software. Works which meet any of *
* these conditions must conform to all of the terms of this license, *
* particularly including the GPL Section 3 requirements of providing *
* source code and allowing free redistribution of the work as a whole. *
* *
* Any redistribution of Covered Software, including any derived works, *
* must obey and carry forward all of the terms of this license, including *
* obeying all GPL rules and restrictions. For example, source code of *
* the whole work must be provided and free redistribution must be *
* allowed. All GPL references to "this License", are to be treated as *
* including the terms and conditions of this license text as well. *
* *
* Because this license imposes special exceptions to the GPL, Covered *
* Work may not be combined (even as part of a larger work) with plain GPL *
* software. The terms, conditions, and exceptions of this license must *
* be included as well. This license is incompatible with some other open *
* source licenses as well. In some cases we can relicense portions of *
* DRAKVUF or grant special permissions to use it in other open source *
* software. Please contact [email protected] with any such *
* requests. Similarly, we don't incorporate incompatible open source *
* software into Covered Software without special permission from the *
* copyright holders. *
* *
* If you have any questions about the licensing restrictions on using *
* DRAKVUF in other works, are happy to help. As mentioned above, *
* alternative license can be requested from the author to integrate *
* DRAKVUF into proprietary applications and appliances. Please email *
* [email protected] for further information. *
* *
* If you have received a written license agreement or contract for *
* Covered Software stating terms other than these, you may choose to use *
* and redistribute Covered Software under those terms instead of these. *
* *
* Source is provided to this software because we believe users have a *
* right to know exactly what a program is going to do before they run it. *
* This also allows you to audit the software for security holes. *
* *
* Source code also allows you to port DRAKVUF to new platforms, fix bugs, *
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* on https://github.com/tklengyel/drakvuf, or by other methods. *
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* *
* This program is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* *
***************************************************************************/

#include <check.h>

#include "../../libdrakvuf/libdrakvuf.h"
#include "private.h"

START_TEST(test_syscall_arg_type_parameters)
{
for (size_t i = 0; i < syscalls_ns::arg_type_t::__ARG_TYPE_MAX; i++)
ck_assert_msg(syscalls_ns::arg_types.find((syscalls_ns::arg_type_t)i) != syscalls_ns::arg_types.end(), "information missing for syscall argument type %zu", i);
}
END_TEST

Suite* syscall_parameters_suite(void)
{
Suite* s;
TCase* tc_core;

s = suite_create("Check known syscall argument parameters");

/* Core test case */
tc_core = tcase_create("Core");

tcase_add_test(tc_core, test_syscall_arg_type_parameters);
suite_add_tcase(s, tc_core);

return s;
}

int main(void)
{
int number_failed;
Suite* s;
SRunner* sr;

s = syscall_parameters_suite();
sr = srunner_create(s);
srunner_add_suite(sr, syscall_parameters_suite());

srunner_run_all(sr, CK_NORMAL);
number_failed = srunner_ntests_failed(sr);
srunner_free(sr);
return (number_failed == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}
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