Hello Max,


On 8/18/21 8:42 AM, Maximilian Blenk via lists.yoctoproject.org wrote:

Add class to analyze binaries with checksec.py. checksec.py is a tool
that checks if security features of a compiler have been used. To do
so, it analyses the resulting binaries:
* NX Proctection is enabled
* Full RELRO is enabled
* RPATH and RUNPATH are not set
* Executables are compiled to be position independent
* FORTIFY_SOURCE is set (false-positives possible)
* Stack Canaries are enabled (false-positives possible)

Signed-off-by: Maximilian Blenk <Maximilian.Blenk@...>
---
Hi guys,

we are currently working on adding automatically checking the binaries
we put into an image for the presence of certain recommended compiler
features. To achieve this, we created a bbclass that wraps around the
existing project checksec.py (https://github.com/Wenzel/checksec.py). In
particular, checksec.py is used to check if
* relro is enabled
* executables are compiled to be position indipendet code
* rpath and runpath are not set
* stack canaries are enabled
* fortify source is enabled
I must however admit that the last two checks can suffer from
false-positives which need manual analysis and whitelisting (check can
also be completely disabled).

Motivation:
We've decided that such checks would be a nice thing to have because
people might overwrite important compiler flags in their local recipe.
Additionally there is always the possibility that components are shipped
as binaries instead of code (so they are actually build outside the
current build environment). Overall we've detected several cases where
required compiler flags have not been applied to shipped components.
After internal discussion we came to the conclusion that you guys would
maybe also be interested in this kind of checks, so I'm offering this
patch to you as well.

Is this a v2 or a resend?

Thanks for the patch set. I will need some time to take a look at it.

- armin

I would really appreciate your feedback :-)

BR Max

classes/image-with-hardened-binaries.bbclass | 338 ++++++++++++++++++
...1-main-Add-option-to-ignore-symlinks.patch | 81 +++++
.../0002-Elf-Fix-relro-detection.patch | 51 +++
...heck-Treat-binaries-with-0-fortifiab.patch | 33 ++
...o-use-pre-compiled-version-of-spdlog.patch | 154 ++++++++
.../python/python3-asttokens_2.0.5.bb | 15 +
.../python3-checksec.py-native_0.6.1.bb | 31 ++
.../python/python3-colorama_%.bbappend | 1 +
.../python/python3-commonmark_0.9.1.bb | 14 +
.../python/python3-docopt_0.6.2.bb | 18 +
.../python/python3-icontract_2.5.3.bb | 14 +
.../python/python3-lief_0.11.5.bb | 36 ++
.../python/python3-pylddwrap_1.0.1.bb | 21 ++
recipes-devtools/python/python3-rich_7.1.0.bb | 16 +
.../python/python3-setuptools-scm_6.0.1.bb | 17 +
.../python/python3-toml_%.bbappend | 1 +
16 files changed, 841 insertions(+)
create mode 100644 classes/image-with-hardened-binaries.bbclass
create mode 100644 recipes-devtools/python/files/python3-checksec.py/0001-main-Add-option-to-ignore-symlinks.patch
create mode 100644 recipes-devtools/python/files/python3-checksec.py/0002-Elf-Fix-relro-detection.patch
create mode 100644 recipes-devtools/python/files/python3-checksec.py/0003-fortify-source-check-Treat-binaries-with-0-fortifiab.patch
create mode 100644 recipes-devtools/python/files/python3-lief/0001-Enable-to-use-pre-compiled-version-of-spdlog.patch
create mode 100644 recipes-devtools/python/python3-asttokens_2.0.5.bb
create mode 100644 recipes-devtools/python/python3-checksec.py-native_0.6.1.bb
create mode 100644 recipes-devtools/python/python3-colorama_%.bbappend
create mode 100644 recipes-devtools/python/python3-commonmark_0.9.1.bb
create mode 100644 recipes-devtools/python/python3-docopt_0.6.2.bb
create mode 100644 recipes-devtools/python/python3-icontract_2.5.3.bb
create mode 100644 recipes-devtools/python/python3-lief_0.11.5.bb
create mode 100644 recipes-devtools/python/python3-pylddwrap_1.0.1.bb
create mode 100644 recipes-devtools/python/python3-rich_7.1.0.bb
create mode 100644 recipes-devtools/python/python3-setuptools-scm_6.0.1.bb
create mode 100644 recipes-devtools/python/python3-toml_%.bbappend

diff --git a/classes/image-with-hardened-binaries.bbclass b/classes/image-with-hardened-binaries.bbclass
new file mode 100644
index 0000000..d7d3908
--- /dev/null
+++ b/classes/image-with-hardened-binaries.bbclass
@@ -0,0 +1,338 @@
+# Provide qa checks to ensure all applications and libraries shipped with the image
+# have common compiler security features enabled. In particular there are checks that:
+# * nx protection is enabled
+# * relro is enabled
+# * executables (except for static linked ones) are position independent
+# * rpath and runpath are not set
+
+IMAGE_QA_COMMANDS += "image_check_binary_hardening"
+
+DEPENDS += "python3-checksec.py-native"
+
+inherit python3native
+
+# Add mappings to the path mappers (which determines if a binary is a application or
+# shared library). To add a mapping append " /path/from/the/root/to/bin:{application,library,ignore}"
+# to the list
+HARDENED_BINARIES_EXTRA_MAPPING ?= ""
+
+# Config file in TOML format:
+# [check]
+# enabled = true
+# whitelist = [
+# "path to some binary",
+# "path to some other binary"
+# ]
+# supported checks are: nx, relro, pie, rpath, runpath
+HARDENED_BINARIES_CONFIG_FILE ?= ""
+
+# Custom message to show in case of a detected violation
+# For instace if you want to add whom to contact for support
+HARDENED_BINARIES_CUSTOM_ERROR_MESSAGE ?= ""
+
+# Path to libc used for foritfy source analysis. If fortify_source check is
+# not enabled, this variable can be ignored.
+HARDENED_BINARIES_LIBC_PATH ?= "${IMAGE_ROOTFS}${baselib}/libc.so.6"
+
+python image_check_binary_hardening () {
+ import fnmatch
+ import json
+ import os
+ import subprocess
+ import toml
+ from collections import defaultdict, OrderedDict
+ from enum import Enum, auto
+
+ from oe.utils import ImageQAFailed
+
+ rootfs = d.getVar("IMAGE_ROOTFS")
+
+ #################################
+ ## Data about supported checks ##
+ #################################
+
+ class BinType(Enum):
+ IGNORE = "ignore"
+ APPLICATION = "application"
+ LIBRARY = "library"
+
+ # Dict of checks to perform on the analysis result of checksec.py
+ # Each entry needs to contain the following attributes:
+ # - allowed_value: Value in the analysis result that should be accepted
+ # - bintypes: List of types on which the check shall be enforced (e.g. PIE check on libraries
+ # doesn't make much sense because PIE is only for executables)
+ # - errormsg: Message that should be prompted in case violators have been found
+ # - ignore_static: Indicates if statically linked applications should be ignored for that check
+ # Notes specific checks:
+ # - NX: Needs to be enforced on applications and libraries. This is because if only a single shared
+ # library doesn't use that, the whole process needs to have a executable stack.
+ # - RELRO: Statically linked applications do not make use of relocation, so this check would always
+ # fail for statically linked applications.
+ # - PIE: This check is only valid for applications (as in "position independent executable" for
+ # applications vs. "position independent code" (PIC) for shared libraries)
+ CHECK_DATA = {
+ "nx" : {
+ "allowed_value": True,
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries do not use nx (not executable) protection. This mechanism is used " \
+ "to separate data from executable code. Disabling this mechanism is a security issue because " \
+ "this enables attackers to put code onto the stack. Please also note, if the nx protection is " \
+ "disabled in a shared library, all binary objects that link against this library will not be " \
+ "protected. This message usually appears if your binary is linked using the \"-z execstack\" " \
+ "flag.",
+ "ignore_static": False,
+ },
+ "relro": {
+ "allowed_value": "Full",
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries do not make use of the relro (relocation read-only). This feature " \
+ "prevents attackers from modifying addresses of functions that are located in shared libraries " \
+ "(which is a common technique to exploit vulnerabilities). Due to this, not making use of this " \
+ "feature is a security issue. Please make sure your application is linked using " \
+ "\"-Wl,-z,relro,-z,now\". ",
+ "ignore_static": True,
+ },
+ "rpath": {
+ "allowed_value": False,
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries are making use of the rpath feature. This can easily enable an attacker " \
+ "to get malicious code executed if there is some issue with the file permissions at the specified " \
+ "location. Due to this, the usage of this feature is generally discouraged and needs approval " \
+ "by the security team.",
+ "ignore_static": False,
+ },
+ "runpath": {
+ "allowed_value": False,
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries are making use of the runpath feature. This can easily enable an attacker" \
+ " to get malicious code executed if there is some issue with the file permissions at the specified " \
+ "location. Due to this, the usage of this feature is generally discouraged and needs approval " \
+ "by the security team.",
+ "ignore_static": False,
+ },
+ "pie": {
+ "allowed_value": "PIE",
+ "bintypes": [BinType.APPLICATION],
+ "errormsg":
+ "The following {} applications are not compiled to be position independent executables (pie). This " \
+ "compiler feature compiles the code in a way that it can be mapped to any location in the virtual " \
+ "memory. Compiling the application this way is required to make use of the Address Space Layout " \
+ "Randomization (ASLR). This feature maps executable code to a random location, which means an " \
+ "attacker can not rely on the fact that a specific portion of code is mapped to a specific address. " \
+ "Please ensure that you application is compiled using \"-fPIE\".",
+ "ignore_static": True,
+ },
+ "canary": {
+ "allowed_value": True,
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries seem to be not using stack canaries. These canaries are used to mitigate " \
+ "stack buffer overflows attacks. To do so the compiler adds checks to the end of a function to " \
+ "ensure that this function did not overwrite the stack frames of another function. Not using " \
+ "canaries may allow an attacker to exploit stack based buffer overflows by modifying the stack frame " \
+ "of other function calls (which simplifies exploiting such vulnerabilities a lot). Please make sure " \
+ "your components are compiled with the \"-fstack-protector-strong\" compile flag. Please note that " \
+ "there is a slight possibility for false-positives in this check: The compiler checks if a function " \
+ "needs canary protection or not. If there is no function that needs proctedtion in your binary, this " \
+ "check will fail anyway and the binary needs to be whitelisted.",
+ "ignore_static": False,
+ },
+ "fortify_source": {
+ "allowed_value": True,
+ "bintypes": [BinType.APPLICATION, BinType.LIBRARY],
+ "errormsg":
+ "The following {} binaries seem to be not using the fortify source feature. This feature protects " \
+ "(some, not all) calls to memory manipulations function like memcpy, strcpy or strcat by adding " \
+ "checks that prevent buffer overflows. These checks can prevent attackers from exploiting such a " \
+ "buffer overflow. Please make sure your component is compiled with \"-D_FORTIFY_SOURCE=2\". In " \
+ "addition the compiler optimizations need to be enabled with \"-O1\" or higher. Please note that " \
+ "there is a slight possibility for false positives here: Not all occurences of these mentioned " \
+ "memory calls that can not be protected they will appear as if_FORTIFY_SOURCE has not been set. " \
+ "In such a case the binary needs to be whitelisted.",
+ "ignore_static": False,
+ }
+ }
+
+ #################################
+ ## Parse data from config file ##
+ #################################
+
+ config_file = d.getVar("HARDENED_BINARIES_CONFIG_FILE", True)
+ if not config_file:
+ msg = "Hardend Binary Check: No config file specifed. Please create a config file and set " \
+ "the variable \"HARDENED_BINARIES_CONFIG_FILE\" accordingly"
+ raise ImageQAFailed(msg, image_check_binary_hardening)
+
+ CHECK_CONFIG_DATA = defaultdict(lambda: {"enabled": False})
+ CHECK_CONFIG_DATA.update(toml.load(config_file))
+
+ # Expand whitelisted paths with rootfs
+ for check, values in CHECK_CONFIG_DATA.items():
+ values["whitelist"] = [rootfs + x for x in values["whitelist"]]
+
+ ###############################################
+ ## Classes and functions to perform analysis ##
+ ###############################################
+
+ class PathMapping:
+ """ Class to map paths to BinTypes """
+ def __init__(self, rootfs):
+ self.rootfs = rootfs
+ self.mapping = OrderedDict()
+
+ self.add("/bin/*", BinType.APPLICATION)
+ self.add("/lib/firmware/*", BinType.IGNORE)
+ self.add("/lib/modules/*", BinType.IGNORE)
+ self.add("/lib/systemd/*.so", BinType.LIBRARY)
+ self.add("/lib/systemd/*", BinType.APPLICATION)
+ self.add("/lib/*", BinType.LIBRARY)
+ self.add("/sbin/*", BinType.APPLICATION)
+ self.add("/usr/bin/*", BinType.APPLICATION)
+ self.add("/usr/libexec/*", BinType.APPLICATION)
+ self.add("/usr/lib/firmware/*", BinType.IGNORE)
+ self.add("/usr/lib/modules/*", BinType.IGNORE)
+ self.add("/usr/lib/systemd/*.so", BinType.LIBRARY)
+ self.add("/usr/lib/systemd/*", BinType.APPLICATION)
+ self.add("/usr/lib/*", BinType.LIBRARY)
+ self.add("/usr/sbin/*", BinType.APPLICATION)
+
+
+ def add(self, path, bin_type):
+ """ Add mapping of a path to a FileyType """
+ self.mapping[self.rootfs + path] = bin_type
+
+ def map(self, path):
+ """ Map a path to a FilesType. Returns None if path can not be mapped. """
+ for match_path, bin_type in self.mapping.items():
+ if fnmatch.fnmatch(path, match_path):
+ return bin_type
+ else:
+ return None
+
+ def call_checksec(rootfs):
+ """ Wrapper to call the checksec.py script
+
+ This function returns a list of result dicts, e.g.:
+ [
+ ...,
+ "/bin/systemd-hwdb": {
+ "relro": "No",
+ "canary": true,
+ "nx": true,
+ "pie": "PIE",
+ "rpath": false,
+ "runpath": false,
+ "symbols": false,
+ "fortify_source": true,
+ "fortified": 5,
+ "fortify-able": 16,
+ "fortify_score": 31
+ }
+ ]
+
+ """
+ parallel_make = d.getVar("PARALLEL_MAKE")
+
+ cmd = ["python3", "-m", "checksec", "--json", "--recursive", "--ignore-symlinks"]
+ if parallel_make:
+ cmd.append(parallel_make.replace("-j", "--workers="))
+ if CHECK_CONFIG_DATA["foritfy_source"]["enabled"]:
+ libc_path = d.getVar("HARDENED_BINARIES_LIBC_PATH", True)
+ cmd.append("--set-libc={}".format(libc_path))
+ cmd.append(rootfs)
+
+ return json.loads(subprocess.check_output(cmd).decode('utf-8'))
+
+
+ class ResultAnalyzer:
+ """ Class to evaluate the results produced by checksec.py """
+ def __init__(self, rootfs):
+ self.rootfs = rootfs
+ self.violators = defaultdict(list)
+
+ @staticmethod
+ def __is_static(path):
+ """ Checks if binary at given path is statically linked """
+ return "statically linked" in subprocess.check_output(["file", path], stderr=subprocess.STDOUT).decode('utf-8')
+
+ def check_result(self, path, result, bintype):
+ """ Perfom checks specified in CHECK_DATA on the given analysis result (of a specific binary) """
+
+ for check, values in CHECK_DATA.items():
+ if CHECK_CONFIG_DATA[check]["enabled"] and bintype in values["bintypes"]:
+ for whitelisted in CHECK_CONFIG_DATA[check]["whitelist"]:
+ if fnmatch.fnmatch(path, whitelisted):
+ break
+ else:
+ if result[check] != values["allowed_value"] and \
+ (not values["ignore_static"] or not self.__is_static(path)):
+ self.violators[check].append(path)
+
+
+ def perform_analysis(rootfs):
+ """ Analyze all binaries in a given rootfs. In case a container shall be analyzed the absolute path to the container_path
+ rootfs needs to be passed.
+ """
+
+ # Add custom path mapping (for bins in non-standard locations)
+ path_mapping = PathMapping(rootfs)
+ extra_mapping = d.getVar("HARDENED_BINARIES_EXTRA_MAPPING")
+ if extra_mapping:
+ for mapping in extra_mapping.split():
+ try:
+ path, type = mapping.split(':')
+ except:
+ bb.error("Hardened Binary Checks: Got misformated extra mapping {}. Mapping needs to be " \
+ "in form: \"<path regex>:{application,library,ignore}\"".format(mapping))
+ raise
+ path_mapping.add(path, BinType(type))
+
+ # Perform analysis of complete rootfs
+ analysis_result = call_checksec(rootfs)
+
+ # Check analysis results and ensure that all we can actually map all binaries to a BinType
+ result_analyzer = ResultAnalyzer(rootfs)
+ unmapped_binaries = []
+ for path, result in analysis_result.items():
+ bintype = path_mapping.map(path)
+ if bintype in [BinType.APPLICATION, BinType.LIBRARY]:
+ result_analyzer.check_result(path, result, bintype)
+ elif bintype != BinType.IGNORE:
+ unmapped_binaries.append(path)
+
+ # To ensure that we analyze all the binaries lets break the build if we can not map binaries
+ if unmapped_binaries:
+ msg = "Hardend Binary Check: Couldn't figure out if the following files are applications " \
+ "or libraries. This is probably due to a non standard location for applications or " \
+ "libraries. If you think this is required add the mapping to " \
+ "HARDENED_BINARIES_EXTRA_MAPPING and/or contact mgu-security-frontdesk@..." \
+ "\nUnmapped:\n{}".format("\n".join(unmapped_binaries),
+ image_check_binary_hardening)
+ raise ImageQAFailed(msg, image_check_binary_hardening)
+
+ custom_error_message = d.getVar('HARDENED_BINARIES_CUSTOM_ERROR_MESSAGE')
+
+ # Break the build and show error message if we detected violators that are not whitelisted
+ errors = []
+ for check, violators in result_analyzer.violators.items():
+ if violators:
+ errormsg = CHECK_DATA[check]["errormsg"].format(len(violators))
+ errormsg += "\n{}".format("\n".join(violators))
+ if custom_error_message:
+ errormsg += "\n" + custom_error_message
+ errors.append(errormsg)
+
+ if errors:
+ raise ImageQAFailed("\n".join(errors), image_check_binary_hardening)
+
+ ##############################
+ ## Start analysis on rootfs ##
+ ##############################
+
+ perform_analysis(rootfs)
+
+}
diff --git a/recipes-devtools/python/files/python3-checksec.py/0001-main-Add-option-to-ignore-symlinks.patch b/recipes-devtools/python/files/python3-checksec.py/0001-main-Add-option-to-ignore-symlinks.patch
new file mode 100644
index 0000000..ae434bc
--- /dev/null
+++ b/recipes-devtools/python/files/python3-checksec.py/0001-main-Add-option-to-ignore-symlinks.patch
@@ -0,0 +1,81 @@
+From 182268203951750dcfb2c134354e801dea472e4c Mon Sep 17 00:00:00 2001
+From: Maximilian Blenk <Maximilian.Blenk@...>
+Date: Fri, 2 Jul 2021 14:42:25 +0200
+Subject: [PATCH 1/2] main: Add option to ignore symlinks
+
+When analyzing a complete rootfs (which might not be the rootfs of the
+analyzing system) symlinks within that rootfs might be broken. In
+particular absolute symlinks. However, if by chance such a symlink
+currently points to a valid binary in your system, this binary pointed
+to is analyzed. This commit adds the possibility to ignore symlinks to
+files (symlinks to dirs are already ignored by default). This allows to
+solve the issue described above, and if the whole rootfs is analyzed
+there shouldn't be a loss of information (because all the binaries will
+be analyzed anyway). Additionally, this also saves some time when
+performing the analysis.
+
+Upstream-Status: Submitted https://github.com/Wenzel/checksec.py/pull/106
+---
+ checksec/__main__.py | 12 +++++++-----
+ 1 file changed, 7 insertions(+), 5 deletions(-)
+
+diff --git a/checksec/__main__.py b/checksec/__main__.py
+index 856d0b3..f1a3445 100644
+--- a/checksec/__main__.py
++++ b/checksec/__main__.py
+@@ -8,6 +8,7 @@ Options:
+ -w WORKERS --workers=WORKERS Specify the number of process pool workers [default: 4]
+ -j --json Display results as JSON
+ -s LIBC --set-libc=LIBC Specify LIBC library to use to check for fortify scores (ELF)
++ -i --ignore-symlinks Ignore symlinks to files
+ -d --debug Enable debug output
+ -h --help Display this message
+ """
+@@ -27,15 +28,15 @@ from .pe import PEChecksecData, PESecurity, is_pe
+ from .utils import lief_set_logging
+
+
+-def walk_filepath_list(filepath_list: List[Path], recursive: bool = False) -> Iterator[Path]:
++def walk_filepath_list(filepath_list: List[Path], recursive: bool = False, ignore_symlinks: bool = False) -> Iterator[Path]:
+ for path in filepath_list:
+ if path.is_dir() and not path.is_symlink():
+ if recursive:
+ for f in os.scandir(path):
+- yield from walk_filepath_list([Path(f)], recursive)
++ yield from walk_filepath_list([Path(f)], recursive, ignore_symlinks)
+ else:
+ yield from (Path(f) for f in os.scandir(path))
+- elif path.is_file():
++ elif path.is_file() and (not ignore_symlinks or not path.is_symlink()):
+ yield path
+
+
+@@ -72,6 +73,7 @@ def main(args):
+ json = args["--json"]
+ recursive = args["--recursive"]
+ libc_path = args["--set-libc"]
++ ignore_symlinks = args["--ignore-symlinks"]
+
+ # logging
+ formatter = "%(asctime)s %(levelname)s:%(name)s:%(message)s"
+@@ -107,7 +109,7 @@ def main(args):
+ # we need to consume the iterator once to get the total
+ # for the progress bar
+ check_output.enumerating_tasks_start()
+- count = sum(1 for i in walk_filepath_list(filepath_list, recursive))
++ count = sum(1 for i in walk_filepath_list(filepath_list, recursive, ignore_symlinks))
+ check_output.enumerating_tasks_stop(count)
+ with ProcessPoolExecutor(
+ max_workers=workers, initializer=worker_initializer, initargs=(libc_path,)
+@@ -116,7 +118,7 @@ def main(args):
+ check_output.processing_tasks_start()
+ future_to_checksec = {
+ pool.submit(checksec_file, filepath): filepath
+- for filepath in walk_filepath_list(filepath_list, recursive)
++ for filepath in walk_filepath_list(filepath_list, recursive, ignore_symlinks)
+ }
+ for future in as_completed(future_to_checksec):
+ filepath = future_to_checksec[future]
+--
+2.31.1
+
diff --git a/recipes-devtools/python/files/python3-checksec.py/0002-Elf-Fix-relro-detection.patch b/recipes-devtools/python/files/python3-checksec.py/0002-Elf-Fix-relro-detection.patch
new file mode 100644
index 0000000..a891c2b
--- /dev/null
+++ b/recipes-devtools/python/files/python3-checksec.py/0002-Elf-Fix-relro-detection.patch
@@ -0,0 +1,51 @@
+From f550777f35e178bc16a2ec612b2b39aa2c3946f2 Mon Sep 17 00:00:00 2001
+From: Maximilian Blenk <Maximilian.Blenk@...>
+Date: Fri, 2 Jul 2021 16:16:47 +0200
+Subject: [PATCH 2/2] Elf: Fix relro detection
+
+Currently, relro is only detected when the BIND_NOW is set. If however
+the NOW flag in the FLAGS_1 section is set, relro is not detected (it
+does not even tell that relro is enabled partially). With this commit
+relro is detected correctly.
+
+Upstream-Status: Submitted https://github.com/Wenzel/checksec.py/pull/107
+---
+ checksec/elf.py | 19 +++++++++++++++----
+ 1 file changed, 15 insertions(+), 4 deletions(-)
+
+diff --git a/checksec/elf.py b/checksec/elf.py
+index 78ecacc..ef1850c 100644
+--- a/checksec/elf.py
++++ b/checksec/elf.py
+@@ -118,13 +118,24 @@ class ELFSecurity(BinarySecurity):
+ def relro(self) -> RelroType:
+ try:
+ self.bin.get(lief.ELF.SEGMENT_TYPES.GNU_RELRO)
+- if lief.ELF.DYNAMIC_FLAGS.BIND_NOW in self.bin.get(lief.ELF.DYNAMIC_TAGS.FLAGS):
+- return RelroType.Full
+- else:
+- return RelroType.Partial
+ except lief.not_found:
+ return RelroType.No
+
++ try:
++ bind_now = lief.ELF.DYNAMIC_FLAGS.BIND_NOW in self.bin.get(lief.ELF.DYNAMIC_TAGS.FLAGS)
++ except lief.not_found:
++ bind_now = False
++
++ try:
++ now = lief.ELF.DYNAMIC_FLAGS_1.NOW in self.bin.get(lief.ELF.DYNAMIC_TAGS.FLAGS_1)
++ except lief.not_found:
++ now = False
++
++ if bind_now or now:
++ return RelroType.Full
++ else:
++ return RelroType.Partial
++
+ @property
+ def has_canary(self) -> bool:
+ canary_sections = ["__stack_chk_fail", "__intel_security_cookie"]
+--
+2.31.1
+
diff --git a/recipes-devtools/python/files/python3-checksec.py/0003-fortify-source-check-Treat-binaries-with-0-fortifiab.patch b/recipes-devtools/python/files/python3-checksec.py/0003-fortify-source-check-Treat-binaries-with-0-fortifiab.patch
new file mode 100644
index 0000000..0351f84
--- /dev/null
+++ b/recipes-devtools/python/files/python3-checksec.py/0003-fortify-source-check-Treat-binaries-with-0-fortifiab.patch
@@ -0,0 +1,33 @@
+From 8de048c0065f8c5890d9e04ef2b32306e2ac4f8c Mon Sep 17 00:00:00 2001
+From: Maximilian Blenk <Maximilian.Blenk@...>
+Date: Thu, 5 Aug 2021 15:21:58 +0200
+Subject: [PATCH] fortify source check: Treat binaries with 0 fortifiable as
+ fortified
+
+Currently, if checksec.py detects 0 fortifiable instances it still
+treats the binary as not fortified. Semtically it would make sense to
+treat these binaries as fortified (because there is no evidence that it
+is not)
+
+Upstream-Status: Submitted https://github.com/Wenzel/checksec.py/pull/109
+---
+ checksec/elf.py | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/checksec/elf.py b/checksec/elf.py
+index ef1850c..5914135 100644
+--- a/checksec/elf.py
++++ b/checksec/elf.py
+@@ -229,8 +229,7 @@ class ELFSecurity(BinarySecurity):
+ else:
+ score = (fortified_count * 100) / fortifiable_count
+ score = round(score)
+-
+- fortify_source = True if fortified_count != 0 else False
++ fortify_source = True if fortified_count != 0 or fortifiable_count == 0 else False
+ return ELFChecksecData(
+ relro=self.relro,
+ canary=self.has_canary,
+--
+2.31.1
+
diff --git a/recipes-devtools/python/files/python3-lief/0001-Enable-to-use-pre-compiled-version-of-spdlog.patch b/recipes-devtools/python/files/python3-lief/0001-Enable-to-use-pre-compiled-version-of-spdlog.patch
new file mode 100644
index 0000000..af94cfa
--- /dev/null
+++ b/recipes-devtools/python/files/python3-lief/0001-Enable-to-use-pre-compiled-version-of-spdlog.patch
@@ -0,0 +1,154 @@
+From d2ad8f6108c750c3dbd33ee6d4e4c94ada748b8a Mon Sep 17 00:00:00 2001
+From: Romain Thomas <me@...>
+Date: Mon, 3 May 2021 11:25:49 +0200
+Subject: [PATCH] Enable to use pre-compiled version of spdlog
+
+---
+ CMakeLists.txt | 8 ++++----
+ cmake/LIEFDependencies.cmake | 36 +++++++++++++++++++++++-------------
+ cmake/LIEFOptions.cmake | 4 ++++
+ setup.py | 17 +++++++++++++++++
+ 4 files changed, 48 insertions(+), 17 deletions(-)
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index d1665cd..b92519a 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -307,8 +307,7 @@ source_group("mbedtls\\tls" FILES ${mbedtls_src_tls})
+ # Library definition
+ # ==================
+ target_include_directories(
+- LIB_LIEF SYSTEM PRIVATE "${SPDLOG_SOURCE_DIR}/include"
+- "${MBEDTLS_INCLUDE_DIRS}")
++ LIB_LIEF SYSTEM PRIVATE "${MBEDTLS_INCLUDE_DIRS}")
+
+ target_include_directories(
+ LIB_LIEF
+@@ -355,7 +354,8 @@ target_sources(LIB_LIEF PRIVATE
+ ${CMAKE_CURRENT_BINARY_DIR}/include/LIEF/third-party/utfcpp/utf8.h)
+
+
+-add_dependencies(LIB_LIEF lief_spdlog lief_mbed_tls)
++add_dependencies(LIB_LIEF lief_mbed_tls)
++target_link_libraries(LIB_LIEF PRIVATE lief_spdlog)
+
+ # Flags definition
+ # ----------------
+@@ -626,7 +626,7 @@ install(
+ DESTINATION lib/pkgconfig
+ COMPONENT libraries)
+
+-export(TARGETS LIB_LIEF FILE LIEFExport.cmake)
++export(TARGETS LIB_LIEF lief_spdlog FILE LIEFExport.cmake)
+
+ # Package
+ # ======================
+diff --git a/cmake/LIEFDependencies.cmake b/cmake/LIEFDependencies.cmake
+index e75326f..37e6987 100644
+--- a/cmake/LIEFDependencies.cmake
++++ b/cmake/LIEFDependencies.cmake
+@@ -144,21 +144,31 @@ set(mbedtls_src_tls
+ "${MBEDTLS_SOURCE_DIR}/library/ssl_tls13_keys.c"
+ )
+
+-#set_source_files_properties("${MBEDTLS_SOURCE_DIR}/library/bignum.c" PROPERTIES COMPILE_FLAGS -Wno-overlength-strings)
++add_library(lief_spdlog INTERFACE)
+
+-set(SPDLOG_VERSION 1.8.2)
+-set(SPDLOG_SHA256 SHA256=f0410b12b526065802b40db01304783550d3d20b4b6fe2f8da55f9d08ed2035d)
+-set(SPDLOG_URL "${THIRD_PARTY_DIRECTORY}/spdlog-${SPDLOG_VERSION}.zip" CACHE STRING "URL to the spdlog lib repo")
+-ExternalProject_Add(lief_spdlog
+- URL ${SPDLOG_URL}
+- URL_HASH ${SPDLOG_SHA256}
+- CONFIGURE_COMMAND ""
+- BUILD_COMMAND ""
+- UPDATE_COMMAND ""
+- INSTALL_COMMAND "")
++if(LIEF_EXTERNAL_SPDLOG)
++ find_package(spdlog REQUIRED)
++ list(APPEND CMAKE_MODULE_PATH "${SPDLOG_DIR}/cmake")
++ target_link_libraries(lief_spdlog INTERFACE spdlog::spdlog)
++ get_target_property(SPDLOG_INC_DIR spdlog::spdlog INTERFACE_INCLUDE_DIRECTORIES)
++ target_include_directories(lief_spdlog SYSTEM INTERFACE ${SPDLOG_INC_DIR})
++else()
++ set(SPDLOG_VERSION 1.8.2)
++ set(SPDLOG_SHA256 SHA256=f0410b12b526065802b40db01304783550d3d20b4b6fe2f8da55f9d08ed2035d)
++ set(SPDLOG_URL "${THIRD_PARTY_DIRECTORY}/spdlog-${SPDLOG_VERSION}.zip" CACHE STRING "URL to the spdlog source")
++ ExternalProject_Add(lief_spdlog_project
++ URL ${SPDLOG_URL}
++ URL_HASH ${SPDLOG_SHA256}
++ CONFIGURE_COMMAND ""
++ BUILD_COMMAND ""
++ UPDATE_COMMAND ""
++ INSTALL_COMMAND "")
+
+-ExternalProject_get_property(lief_spdlog SOURCE_DIR)
+-set(SPDLOG_SOURCE_DIR "${SOURCE_DIR}")
++ ExternalProject_get_property(lief_spdlog_project SOURCE_DIR)
++ set(SPDLOG_SOURCE_DIR "${SOURCE_DIR}")
++ add_dependencies(lief_spdlog lief_spdlog_project)
++ target_include_directories(lief_spdlog SYSTEM INTERFACE ${SPDLOG_SOURCE_DIR}/include)
++endif()
+
+ # Fuzzing
+ # ~~~~~~~
+diff --git a/cmake/LIEFOptions.cmake b/cmake/LIEFOptions.cmake
+index fd6df6c..3bb92c3 100644
+--- a/cmake/LIEFOptions.cmake
++++ b/cmake/LIEFOptions.cmake
+@@ -45,6 +45,10 @@ option(LIEF_PROFILING "Enable performance profiling" OFF)
+ cmake_dependent_option(LIEF_INSTALL_COMPILED_EXAMPLES "Install LIEF Compiled examples" OFF
+ "LIEF_EXAMPLES" OFF)
+
++# Use a user-provided version of spdlog
++# It can be useful to reduce compile time
++option(LIEF_EXTERNAL_SPDLOG OFF)
++
+ set(LIEF_ELF_SUPPORT 0)
+ set(LIEF_PE_SUPPORT 0)
+ set(LIEF_MACHO_SUPPORT 0)
+diff --git a/setup.py b/setup.py
+index b915180..ad70bd8 100644
+--- a/setup.py
++++ b/setup.py
+@@ -45,6 +45,10 @@ class LiefDistribution(setuptools.Distribution):
+ ('lief-no-vdex', None, 'Disable VDEX module'),
+ ('lief-no-oat', None, 'Disable OAT module'),
+ ('lief-no-dex', None, 'Disable DEX module'),
++
++ ('lief-no-cache', None, 'Do not use compiler cache (ccache)'),
++
++ ('spdlog-dir=', None, 'Path to the directory that contains spdlogConfig.cmake'),
+ ]
+
+ def __init__(self, attrs=None):
+@@ -66,6 +70,10 @@ class LiefDistribution(setuptools.Distribution):
+
+ self.lief_no_android = False
+ self.doc = False
++
++ self.lief_no_cache = False
++
++ self.spdlog_dir = None
+ super().__init__(attrs)
+
+
+@@ -154,6 +162,15 @@ class BuildLibrary(build_ext):
+ else:
+ cmake_args += ["-DLIEF_LOGGING_DEBUG=off"]
+
++ if self.distribution.lief_no_cache:
++ cmake_args += ["-DLIEF_USE_CCACHE=off"]
++
++ # Setup spdlog configuration flags if
++ # the user provides --spdlog-dir
++ if self.distribution.spdlog_dir is not None:
++ cmake_args.append("-DLIEF_EXTERNAL_SPDLOG=ON")
++ cmake_args.append("-Dspdlog_DIR={}".format(self.distribution.spdlog_dir))
++
+ # Main formats
+ # ============
+ if self.distribution.lief_no_elf:
+--
+2.31.1
+
diff --git a/recipes-devtools/python/python3-asttokens_2.0.5.bb b/recipes-devtools/python/python3-asttokens_2.0.5.bb
new file mode 100644
index 0000000..7ac2052
--- /dev/null
+++ b/recipes-devtools/python/python3-asttokens_2.0.5.bb
@@ -0,0 +1,15 @@
+SUMMARY = "Annotate AST trees with source code positions"
+HOMEPAGE = "https://github.com/gristlabs/asttokens"
+AUTHOR = "Dmitry Sagalovskiy, Grist Labs <dmitry@...>"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=e3fc50a88d0a364313df4b21ef20c29e"
+
+SRC_URI[md5sum] = "0a2a057b9c9a220bffdb3e7512062f17"
+SRC_URI[sha256sum] = "9a54c114f02c7a9480d56550932546a3f1fe71d8a02f1bc7ccd0ee3ee35cf4d5"
+
+RDEPENDS_${PN} = "python3-six"
+DEPENDS += "python3-setuptools-scm python3-toml"
+
+inherit pypi setuptools3
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-checksec.py-native_0.6.1.bb b/recipes-devtools/python/python3-checksec.py-native_0.6.1.bb
new file mode 100644
index 0000000..edce0a6
--- /dev/null
+++ b/recipes-devtools/python/python3-checksec.py-native_0.6.1.bb
@@ -0,0 +1,31 @@
+SUMMARY = "Tool to verify the security properties of binaries"
+DESCRIPTION = "checksec.py is a tool verify if certain compiler flags \
+ have been enabled on compield applications and libraries."
+HOMEPAGE = "https://github.com/Wenzel/checksec.py"
+BUGTRACKER = "https://github.com/Wenzel/checksec.py/issues"
+SECTION = "devel/python"
+
+LICENSE = "GPL-3.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=1ebbd3e34237af26da5dc08a4e440464"
+
+RDEPENDS_${PN} += " \
+ python3-docopt-native \
+ python3-lief-native \
+ python3-pylddwrap-native \
+ python3-rich-native \
+ "
+
+# Needs to be pulled from github becuase pypi package is currently broken
+SRC_URI = " \
+ git://github.com/Wenzel/checksec.py.git;protocol=https;branch=master \
+ file://python3-checksec.py/0001-main-Add-option-to-ignore-symlinks.patch \
+ file://python3-checksec.py/0002-Elf-Fix-relro-detection.patch \
+ file://python3-checksec.py/0003-fortify-source-check-Treat-binaries-with-0-fortifiab.patch \
+ "
+
+SRCREV = "4335ecd08f6ee13ff4ca9b01e83857ae6a8074e9"
+
+S="${WORKDIR}/git"
+
+inherit setuptools3 native
+
diff --git a/recipes-devtools/python/python3-colorama_%.bbappend b/recipes-devtools/python/python3-colorama_%.bbappend
new file mode 100644
index 0000000..d6f5869
--- /dev/null
+++ b/recipes-devtools/python/python3-colorama_%.bbappend
@@ -0,0 +1 @@
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-commonmark_0.9.1.bb b/recipes-devtools/python/python3-commonmark_0.9.1.bb
new file mode 100644
index 0000000..a35abc3
--- /dev/null
+++ b/recipes-devtools/python/python3-commonmark_0.9.1.bb
@@ -0,0 +1,14 @@
+SUMMARY = "Python parser for the CommonMark Markdown spec"
+HOMEPAGE = "https://github.com/rtfd/commonmark.py"
+AUTHOR = "Bibek Kafle <bkafle662@...>, Roland Shoemaker <rolandshoemaker@...>"
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=37e127eb75a030780aefcfc584e78523"
+
+SRC_URI[md5sum] = "cd1dc70c4714d9ed4117a40490c25e00"
+SRC_URI[sha256sum] = "452f9dc859be7f06631ddcb328b6919c67984aca654e5fefb3914d54691aed60"
+
+S = "${WORKDIR}/commonmark-0.9.1"
+
+inherit pypi setuptools3
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-docopt_0.6.2.bb b/recipes-devtools/python/python3-docopt_0.6.2.bb
new file mode 100644
index 0000000..c1b111a
--- /dev/null
+++ b/recipes-devtools/python/python3-docopt_0.6.2.bb
@@ -0,0 +1,18 @@
+
+SUMMARY = "Pythonic argument parser, that will make you smile"
+HOMEPAGE = "http://docopt.org"
+AUTHOR = "Vladimir Keleshev <vladimir@...>"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE-MIT;md5=09b77fb74986791a3d4a0e746a37d88f"
+
+SRC_URI = "https://github.com/docopt/docopt/archive/refs/tags/${PV}.tar.gz"
+SRC_URI[md5sum] = "a6c44155426fd0f7def8b2551d02fef6"
+SRC_URI[sha256sum] = "2113eed1e7fbbcd43fb7ee6a977fb02d0b482753586c9dc1a8e3b7d541426e99"
+
+S = "${WORKDIR}/docopt-0.6.2"
+
+RDEPENDS_${PN} = ""
+
+inherit setuptools3
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-icontract_2.5.3.bb b/recipes-devtools/python/python3-icontract_2.5.3.bb
new file mode 100644
index 0000000..88ac2ef
--- /dev/null
+++ b/recipes-devtools/python/python3-icontract_2.5.3.bb
@@ -0,0 +1,14 @@
+SUMMARY = "Provide design-by-contract with informative violation messages."
+HOMEPAGE = "https://github.com/Parquery/icontract"
+AUTHOR = "Marko Ristin <marko.ristin@...>"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE.txt;md5=1d4a9b1f6b84bedf7a38843931e0dd57"
+
+SRC_URI[md5sum] = "6f41b9b84e4405374c160836587b3235"
+SRC_URI[sha256sum] = "b790101c8cc0d9df0105d852a645373c4d90d5049391b6e54db32a0acb4bccd7"
+
+inherit pypi setuptools3
+
+RDEPENDS_${PN} += "python3-asttokens"
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-lief_0.11.5.bb b/recipes-devtools/python/python3-lief_0.11.5.bb
new file mode 100644
index 0000000..5e4b422
--- /dev/null
+++ b/recipes-devtools/python/python3-lief_0.11.5.bb
@@ -0,0 +1,36 @@
+SUMMARY = "Library to instrument executable formats"
+DESCRIPTION = " \
+ This project provides a cross platform library which can parse, modify \
+ and abstract ELF, PE and MachO formats. \
+ "
+SECTION = "devel/python"
+HOMEPAGE = "https://github.com/lief-project/LIEF"
+LICENSE = "APACHE-2.0"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=1809bd489c3dae63aa0cb70070dc308e"
+
+SRC_URI = " \
+ https://github.com/lief-project/LIEF/releases/download/${PV}/lief-${PV}.zip \
+ file://python3-lief/0001-Enable-to-use-pre-compiled-version-of-spdlog.patch \
+ "
+SRC_URI[sha256sum] = "947825134d5dab91df218bb201fa4551814f1da0a47e4a890283716b800c8e8f"
+
+S = "${WORKDIR}/lief-${PV}"
+
+inherit setuptools3
+
+DEPENDS += "cmake-native"
+
+BBCLASSEXTEND += "native"
+
+DISTUTILS_BUILD_ARGS += " ${PARALLEL_MAKE} "
+
+do_compile() {
+ # From distutils3.bbclass (needs to be modified here to avoid usage of ccache)
+ cd ${DISTUTILS_SETUP_PATH}
+ NO_FETCH_BUILD=1 \
+ STAGING_INCDIR=${STAGING_INCDIR} \
+ STAGING_LIBDIR=${STAGING_LIBDIR} \
+ ${STAGING_BINDIR_NATIVE}/${PYTHON_PN}-native/${PYTHON_PN} setup.py \
+ --lief-no-cache build --build-base=${B} ${DISTUTILS_BUILD_ARGS} || \
+ bbfatal_log "'${PYTHON_PN} setup.py --lief-no-cache build ${DISTUTILS_BUILD_ARGS}' execution failed."
+}
diff --git a/recipes-devtools/python/python3-pylddwrap_1.0.1.bb b/recipes-devtools/python/python3-pylddwrap_1.0.1.bb
new file mode 100644
index 0000000..985c424
--- /dev/null
+++ b/recipes-devtools/python/python3-pylddwrap_1.0.1.bb
@@ -0,0 +1,21 @@
+SUMMARY = "Python wrapper for ldd"
+DESCRIPTION = " \
+ Pylddwrap wraps ldd *nix utility to determine shared libraries required by a program. \
+ "
+SECTION = "devel/python"
+HOMEPAGE = "https://github.com/Parquery/pylddwrap"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=48fd6c978d39a38b3a04f45a1456d0fa"
+
+SRC_URI[sha256sum] = "171a39fc7feb33e607706c57c08373ceb2f6fd4362af9241ccc65e80c948ccdf"
+
+inherit pypi setuptools3
+
+RDEPENDS_${PN} += "python3-icontract"
+
+do_install_append() {
+ rm -f "${D}/${datadir}/requirements.txt"
+ rm -f "${D}/${datadir}/README.rst"
+}
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-rich_7.1.0.bb b/recipes-devtools/python/python3-rich_7.1.0.bb
new file mode 100644
index 0000000..59c26a4
--- /dev/null
+++ b/recipes-devtools/python/python3-rich_7.1.0.bb
@@ -0,0 +1,16 @@
+SUMMARY = "Render rich text, tables, progress bars, syntax highlighting, markdown and more to the terminal"
+HOMEPAGE = "https://github.com/willmcgugan/rich"
+AUTHOR = "Will McGugan <willmcgugan@...>"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=d0d35d5357392e5bfeb0d0a7e6ba4d83"
+
+SRC_URI[md5sum] = "25daeefa226770a84b98c591069b419c"
+SRC_URI[sha256sum] = "ff701be541be32bcf46e821487c00bf4fa560aa814fc3cc9b3d514fd9b19a6f6"
+
+S = "${WORKDIR}/rich-7.1.0"
+
+RDEPENDS_${PN} = "python3-typing-extensions python3-pygments python3-commonmark python3-colorama"
+
+inherit pypi setuptools3
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-setuptools-scm_6.0.1.bb b/recipes-devtools/python/python3-setuptools-scm_6.0.1.bb
new file mode 100644
index 0000000..234694e
--- /dev/null
+++ b/recipes-devtools/python/python3-setuptools-scm_6.0.1.bb
@@ -0,0 +1,17 @@
+SUMMARY = "the blessed package to manage your versions by scm tags"
+HOMEPAGE = "https://github.com/pypa/setuptools_scm/"
+AUTHOR = "Ronny Pfannschmidt <opensource@...>"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=838c366f69b72c5df05c96dff79b35f2"
+
+SRC_URI = "git://github.com/pypa/setuptools_scm.git;protocol=https;branch=main;tag=v${PV}"
+
+SRC_URI[sha256sum] = "8f85bfc7272fb5c04df28f00bde9db8f862c586d25fa155eea90fe62ea6a3302"
+
+RDEPENDS_${PN} = "python3-setuptools"
+
+inherit setuptools3
+
+S = "${WORKDIR}/git"
+
+BBCLASSEXTEND += "native"
diff --git a/recipes-devtools/python/python3-toml_%.bbappend b/recipes-devtools/python/python3-toml_%.bbappend
new file mode 100644
index 0000000..d6f5869
--- /dev/null
+++ b/recipes-devtools/python/python3-toml_%.bbappend
@@ -0,0 +1 @@
+BBCLASSEXTEND += "native"