# BB Class inspired by ebuild.sh # # This class will test files after installation for certain # security issues and other kind of issues. # # Checks we do: # -Check the ownership and permissions # -Check the RUNTIME path for the $TMPDIR # -Check if .la files wrongly point to workdir # -Check if .pc files wrongly point to workdir # -Check if packages contains .debug directories or .so files # where they should be in -dev or -dbg # -Check if config.log contains traces to broken autoconf tests # -Ensure that binaries in base_[bindir|sbindir|libdir] do not link # into exec_prefix # -Check that scripts in base_[bindir|sbindir|libdir] do not reference # files under exec_prefix # # We need to have the scanelf utility as soon as # possible and this is contained within the pax-utils-native. # The package.bbclass can help us here. # inherit package PACKAGE_DEPENDS += "pax-utils-native desktop-file-utils-native ${QADEPENDS}" PACKAGEFUNCS += " do_package_qa " # unsafe-references-in-binaries requires prelink-rtld from # prelink-native, but we don't want this DEPENDS for -native builds QADEPENDS = "prelink-native" QADEPENDS_virtclass-native = "" QADEPENDS_virtclass-nativesdk = "" # # dictionary for elf headers # # feel free to add and correct. # # TARGET_OS TARGET_ARCH MACHINE, OSABI, ABIVERSION, Little Endian, 32bit? def package_qa_get_machine_dict(): return { "darwin9" : { "arm" : (40, 0, 0, True, 32), }, "linux" : { "arm" : (40, 97, 0, True, 32), "armeb": (40, 97, 0, False, 32), "powerpc": (20, 0, 0, False, 32), "powerpc64": (21, 0, 0, False, 64), "i386": ( 3, 0, 0, True, 32), "i486": ( 3, 0, 0, True, 32), "i586": ( 3, 0, 0, True, 32), "i686": ( 3, 0, 0, True, 32), "x86_64": (62, 0, 0, True, 64), "ia64": (50, 0, 0, True, 64), "alpha": (36902, 0, 0, True, 64), "hppa": (15, 3, 0, False, 32), "m68k": ( 4, 0, 0, False, 32), "mips": ( 8, 0, 0, False, 32), "mipsel": ( 8, 0, 0, True, 32), "s390": (22, 0, 0, False, 32), "sh4": (42, 0, 0, True, 32), "sparc": ( 2, 0, 0, False, 32), }, "linux-uclibc" : { "arm" : ( 40, 97, 0, True, 32), "armeb": ( 40, 97, 0, False, 32), "powerpc": ( 20, 0, 0, False, 32), "i386": ( 3, 0, 0, True, 32), "i486": ( 3, 0, 0, True, 32), "i586": ( 3, 0, 0, True, 32), "i686": ( 3, 0, 0, True, 32), "x86_64": ( 62, 0, 0, True, 64), "mips": ( 8, 0, 0, False, 32), "mipsel": ( 8, 0, 0, True, 32), "avr32": (6317, 0, 0, False, 32), "sh4": (42, 0, 0, True, 32), }, "uclinux-uclibc" : { "bfin": ( 106, 0, 0, True, 32), }, "linux-gnueabi" : { "arm" : (40, 0, 0, True, 32), "armeb" : (40, 0, 0, False, 32), }, "linux-uclibceabi" : { "arm" : (40, 0, 0, True, 32), "armeb" : (40, 0, 0, False, 32), }, "linux-gnu" : { "powerpc": (20, 0, 0, False, 32), }, "linux-gnuspe" : { "powerpc": (20, 0, 0, False, 32), }, "linux-uclibcspe" : { "powerpc": (20, 0, 0, False, 32), }, "linux-gnu" : { "microblaze": (47787, 0, 0, False, 32), "microblazeel": (47787, 0, 0, True, 32), }, "linux-gnux32" : { "x86_64": (62, 0, 0, True, 32), }, } # Currently not being used by default "desktop" WARN_QA ?= "ldflags useless-rpaths rpaths unsafe-references-in-binaries unsafe-references-in-scripts" ERROR_QA ?= "dev-so debug-deps dev-deps debug-files arch la2 pkgconfig la perms" def package_qa_clean_path(path,d): """ Remove the common prefix from the path. In this case it is the TMPDIR""" return path.replace(d.getVar('TMPDIR',True),"") def package_qa_write_error(error, d): logfile = d.getVar('QA_LOGFILE', True) if logfile: p = d.getVar('P', True) f = file( logfile, "a+") print >> f, "%s: %s" % (p, error) f.close() def package_qa_handle_error(error_class, error_msg, d): package_qa_write_error(error_msg, d) if error_class in (d.getVar("ERROR_QA", True) or "").split(): bb.error("QA Issue: %s" % error_msg) return False else: bb.warn("QA Issue: %s" % error_msg) return True QAPATHTEST[rpaths] = "package_qa_check_rpath" def package_qa_check_rpath(file,name, d, elf, messages): """ Check for dangerous RPATHs """ if not elf: return scanelf = os.path.join(d.getVar('STAGING_BINDIR_NATIVE',True),'scanelf') bad_dirs = [d.getVar('TMPDIR', True) + "/work", d.getVar('STAGING_DIR_TARGET', True)] bad_dir_test = d.getVar('TMPDIR', True) if not os.path.exists(scanelf): bb.fatal("Can not check RPATH, scanelf (part of pax-utils-native) not found") if not bad_dirs[0] in d.getVar('WORKDIR', True): bb.fatal("This class assumed that WORKDIR is ${TMPDIR}/work... Not doing any check") output = os.popen("%s -B -F%%r#F '%s'" % (scanelf,file)) txt = output.readline().split() for line in txt: for dir in bad_dirs: if dir in line: messages.append("package %s contains bad RPATH %s in file %s" % (name, line, file)) QAPATHTEST[useless-rpaths] = "package_qa_check_useless_rpaths" def package_qa_check_useless_rpaths(file, name, d, elf, messages): """ Check for RPATHs that are useless but not dangerous """ if not elf: return objdump = d.getVar('OBJDUMP', True) env_path = d.getVar('PATH', True) libdir = d.getVar("libdir", True) base_libdir = d.getVar("base_libdir", True) import re rpath_re = re.compile("\s+RPATH\s+(.*)") for line in os.popen("LC_ALL=C PATH=%s %s -p '%s' 2> /dev/null" % (env_path, objdump, file), "r"): m = rpath_re.match(line) if m: rpath = m.group(1) if rpath == libdir or rpath == base_libdir: # The dynamic linker searches both these places anyway. There is no point in # looking there again. messages.append("%s: %s contains probably-redundant RPATH %s" % (name, package_qa_clean_path(file, d), rpath)) QAPATHTEST[dev-so] = "package_qa_check_dev" def package_qa_check_dev(path, name, d, elf, messages): """ Check for ".so" library symlinks in non-dev packages """ if not name.endswith("-dev") and not name.endswith("-dbg") and not name.endswith("-nativesdk") and path.endswith(".so") and os.path.islink(path): messages.append("non -dev/-dbg/-nativesdk package contains symlink .so: %s path '%s'" % \ (name, package_qa_clean_path(path,d))) QAPATHTEST[debug-files] = "package_qa_check_dbg" def package_qa_check_dbg(path, name, d, elf, messages): """ Check for ".debug" files or directories outside of the dbg package """ if not "-dbg" in name: if '.debug' in path.split(os.path.sep): messages.append("non debug package contains .debug directory: %s path %s" % \ (name, package_qa_clean_path(path,d))) QAPATHTEST[perms] = "package_qa_check_perm" def package_qa_check_perm(path,name,d, elf, messages): """ Check the permission of files """ return QAPATHTEST[unsafe-references-in-binaries] = "package_qa_check_unsafe_references_in_binaries" def package_qa_check_unsafe_references_in_binaries(path, name, d, elf, messages): """ Ensure binaries in base_[bindir|sbindir|libdir] do not link to files under exec_prefix """ if unsafe_references_skippable(path, name, d): return if elf: import subprocess as sub pn = d.getVar('PN', True) exec_prefix = d.getVar('exec_prefix', True) sysroot_path = d.getVar('STAGING_DIR_TARGET', True) sysroot_path_usr = sysroot_path + exec_prefix try: ldd_output = bb.process.Popen(["prelink-rtld", "--root", sysroot_path, path], stdout=sub.PIPE).stdout.read() except bb.process.CmdError: error_msg = pn + ": prelink-rtld aborted when processing %s" % path package_qa_handle_error("unsafe-references-in-binaries", error_msg, d) return False if sysroot_path_usr in ldd_output: error_msg = pn + ": %s links to something under exec_prefix" % path package_qa_handle_error("unsafe-references-in-binaries", error_msg, d) error_msg = "ldd reports: %s" % ldd_output package_qa_handle_error("unsafe-references-in-binaries", error_msg, d) return False QAPATHTEST[unsafe-references-in-scripts] = "package_qa_check_unsafe_references_in_scripts" def package_qa_check_unsafe_references_in_scripts(path, name, d, elf, messages): """ Warn if scripts in base_[bindir|sbindir|libdir] reference files under exec_prefix """ if unsafe_references_skippable(path, name, d): return if not elf: import stat pn = d.getVar('PN', True) # Ensure we're checking an executable script statinfo = os.stat(path) if bool(statinfo.st_mode & stat.S_IXUSR): # grep shell scripts for possible references to /exec_prefix/ exec_prefix = d.getVar('exec_prefix', True) statement = "grep -e '%s/' %s > /dev/null" % (exec_prefix, path) if os.system(statement) == 0: error_msg = pn + ": Found a reference to %s/ in %s" % (exec_prefix, path) package_qa_handle_error("unsafe-references-in-scripts", error_msg, d) error_msg = "Shell scripts in base_bindir and base_sbindir should not reference anything in exec_prefix" package_qa_handle_error("unsafe-references-in-scripts", error_msg, d) def unsafe_references_skippable(path, name, d): if bb.data.inherits_class('native', d) or bb.data.inherits_class('nativesdk', d): return True if "-dbg" in name or "-dev" in name: return True # Other package names to skip: if name.startswith("kernel-module-"): return True # Skip symlinks if os.path.islink(path): return True # Skip unusual rootfs layouts which make these tests irrelevant exec_prefix = d.getVar('exec_prefix', True) if exec_prefix == "": return True pkgdest = d.getVar('PKGDEST', True) pkgdest = pkgdest + "/" + name pkgdest = os.path.abspath(pkgdest) base_bindir = pkgdest + d.getVar('base_bindir', True) base_sbindir = pkgdest + d.getVar('base_sbindir', True) base_libdir = pkgdest + d.getVar('base_libdir', True) bindir = pkgdest + d.getVar('bindir', True) sbindir = pkgdest + d.getVar('sbindir', True) libdir = pkgdest + d.getVar('libdir', True) if base_bindir == bindir and base_sbindir == sbindir and base_libdir == libdir: return True # Skip files not in base_[bindir|sbindir|libdir] path = os.path.abspath(path) if not (base_bindir in path or base_sbindir in path or base_libdir in path): return True return False QAPATHTEST[arch] = "package_qa_check_arch" def package_qa_check_arch(path,name,d, elf, messages): """ Check if archs are compatible """ if not elf: return target_os = d.getVar('TARGET_OS', True) target_arch = d.getVar('TARGET_ARCH', True) provides = d.getVar('PROVIDES', d, True) # FIXME: Cross package confuse this check, so just skip them for s in ['cross', 'nativesdk', 'cross-canadian']: if bb.data.inherits_class(s, d): return # avoid following links to /usr/bin (e.g. on udev builds) # we will check the files pointed to anyway... if os.path.islink(path): return #if this will throw an exception, then fix the dict above (machine, osabi, abiversion, littleendian, bits) \ = package_qa_get_machine_dict()[target_os][target_arch] # Check the architecture and endiannes of the binary if not machine == elf.machine(): messages.append("Architecture did not match (%d to %d) on %s" % \ (machine, elf.machine(), package_qa_clean_path(path,d))) elif not ((bits == elf.abiSize()) or \ ("virtual/kernel" in provides) and (target_os == "linux-gnux32")): messages.append("Bit size did not match (%d to %d) %s on %s" % \ (bits, elf.abiSize(), bpn, package_qa_clean_path(path,d))) elif not littleendian == elf.isLittleEndian(): messages.append("Endiannes did not match (%d to %d) on %s" % \ (littleendian, elf.isLittleEndian(), package_qa_clean_path(path,d))) QAPATHTEST[desktop] = "package_qa_check_desktop" def package_qa_check_desktop(path, name, d, elf, messages): """ Run all desktop files through desktop-file-validate. """ if path.endswith(".desktop"): desktop_file_validate = os.path.join(d.getVar('STAGING_BINDIR_NATIVE',True),'desktop-file-validate') output = os.popen("%s %s" % (desktop_file_validate, path)) # This only produces output on errors for l in output: messages.append("Desktop file issue: " + l.strip()) QAPATHTEST[ldflags] = "package_qa_hash_style" def package_qa_hash_style(path, name, d, elf, messages): """ Check if the binary has the right hash style... """ if not elf: return if os.path.islink(path): return gnu_hash = "--hash-style=gnu" in d.getVar('LDFLAGS', True) if not gnu_hash: gnu_hash = "--hash-style=both" in d.getVar('LDFLAGS', True) if not gnu_hash: return objdump = d.getVar('OBJDUMP', True) env_path = d.getVar('PATH', True) sane = False has_syms = False # If this binary has symbols, we expect it to have GNU_HASH too. for line in os.popen("LC_ALL=C PATH=%s %s -p '%s' 2> /dev/null" % (env_path, objdump, path), "r"): if "SYMTAB" in line: has_syms = True if "GNU_HASH" in line: sane = True if "[mips32]" in line or "[mips64]" in line: sane = True if has_syms and not sane: messages.append("No GNU_HASH in the elf binary: '%s'" % path) QAPATHTEST[buildpaths] = "package_qa_check_buildpaths" def package_qa_check_buildpaths(path, name, d, elf, messages): """ Check for build paths inside target files and error if not found in the whitelist """ # Ignore .debug files, not interesting if path.find(".debug") != -1: return # Ignore symlinks if os.path.islink(path): return tmpdir = d.getVar('TMPDIR', True) file_content = open(path).read() if tmpdir in file_content: messages.append("File %s in package contained reference to tmpdir" % package_qa_clean_path(path,d)) def package_qa_check_license(workdir, d): """ Check for changes in the license files """ import tempfile sane = True lic_files = d.getVar('LIC_FILES_CHKSUM', True) lic = d.getVar('LICENSE', True) pn = d.getVar('PN', True) if lic == "CLOSED": return True if not lic_files: # just throw a warning now. Once licensing data in entered for enough of the recipes, # this will be converted into error and False will be returned. bb.error(pn + ": Recipe file does not have license file information (LIC_FILES_CHKSUM)") return False srcdir = d.getVar('S', True) for url in lic_files.split(): (type, host, path, user, pswd, parm) = bb.decodeurl(url) srclicfile = os.path.join(srcdir, path) if not os.path.isfile(srclicfile): raise bb.build.FuncFailed( pn + ": LIC_FILES_CHKSUM points to an invalid file: " + srclicfile) if 'md5' not in parm: bb.error(pn + ": md5 checksum is not specified for ", url) return False beginline, endline = 0, 0 if 'beginline' in parm: beginline = int(parm['beginline']) if 'endline' in parm: endline = int(parm['endline']) if (not beginline) and (not endline): md5chksum = bb.utils.md5_file(srclicfile) else: fi = open(srclicfile, 'r') fo = tempfile.NamedTemporaryFile(mode='wb', prefix='poky.', suffix='.tmp', delete=False) tmplicfile = fo.name; lineno = 0 linesout = 0 for line in fi: lineno += 1 if (lineno >= beginline): if ((lineno <= endline) or not endline): fo.write(line) linesout += 1 else: break fo.flush() fo.close() fi.close() md5chksum = bb.utils.md5_file(tmplicfile) os.unlink(tmplicfile) if parm['md5'] == md5chksum: bb.note (pn + ": md5 checksum matched for ", url) else: bb.error (pn + ": md5 data is not matching for ", url) bb.error (pn + ": The new md5 checksum is ", md5chksum) bb.error (pn + ": Check if the license information has changed in") sane = False return sane def package_qa_check_staged(path,d): """ Check staged la and pc files for sanity -e.g. installed being false As this is run after every stage we should be able to find the one responsible for the errors easily even if we look at every .pc and .la file """ sane = True tmpdir = d.getVar('TMPDIR', True) workdir = os.path.join(tmpdir, "work") installed = "installed=yes" if bb.data.inherits_class("native", d) or bb.data.inherits_class("cross", d): pkgconfigcheck = workdir else: pkgconfigcheck = tmpdir # find all .la and .pc files # read the content # and check for stuff that looks wrong for root, dirs, files in os.walk(path): for file in files: path = os.path.join(root,file) if file.endswith(".la"): file_content = open(path).read() if workdir in file_content: error_msg = "%s failed sanity test (workdir) in path %s" % (file,root) sane = package_qa_handle_error("la", error_msg, d) elif file.endswith(".pc"): file_content = open(path).read() if pkgconfigcheck in file_content: error_msg = "%s failed sanity test (tmpdir) in path %s" % (file,root) sane = package_qa_handle_error("pkgconfig", error_msg, d) return sane # Walk over all files in a directory and call func def package_qa_walk(path, warnfuncs, errorfuncs, skip, package, d): import oe.qa #if this will throw an exception, then fix the dict above target_os = d.getVar('TARGET_OS', True) target_arch = d.getVar('TARGET_ARCH', True) warnings = [] errors = [] for root, dirs, files in os.walk(path): for file in files: path = os.path.join(root,file) elf = oe.qa.ELFFile(path) try: elf.open() except: elf = None for func in warnfuncs: func(path, package, d, elf, warnings) for func in errorfuncs: func(path, package, d, elf, errors) for w in warnings: bb.warn("QA Issue: %s" % w) package_qa_write_error(w, d) for e in errors: bb.error("QA Issue: %s" % e) package_qa_write_error(e, d) return len(errors) == 0 def package_qa_check_rdepends(pkg, pkgdest, skip, d): # Don't do this check for kernel/module recipes, there aren't too many debug/development # packages and you can get false positives e.g. on kernel-module-lirc-dev if bb.data.inherits_class("kernel", d) or bb.data.inherits_class("module-base", d): return True sane = True if not "-dbg" in pkg and not "task-" in pkg and not "-image" in pkg: # Copied from package_ipk.bbclass # boiler plate to update the data localdata = bb.data.createCopy(d) root = "%s/%s" % (pkgdest, pkg) localdata.setVar('ROOT', '') localdata.setVar('ROOT_%s' % pkg, root) pkgname = localdata.getVar('PKG_%s' % pkg, True) if not pkgname: pkgname = pkg localdata.setVar('PKG', pkgname) localdata.setVar('OVERRIDES', pkg) bb.data.update_data(localdata) # Now check the RDEPENDS rdepends = bb.utils.explode_deps(localdata.getVar('RDEPENDS', True) or "") # Now do the sanity check!!! for rdepend in rdepends: if "-dbg" in rdepend and "debug-deps" not in skip: error_msg = "%s rdepends on %s" % (pkgname,rdepend) sane = package_qa_handle_error("debug-deps", error_msg, d) if (not "-dev" in pkg and not "-staticdev" in pkg) and rdepend.endswith("-dev") and "dev-deps" not in skip: error_msg = "%s rdepends on %s" % (pkgname, rdepend) sane = package_qa_handle_error("dev-deps", error_msg, d) return sane # The PACKAGE FUNC to scan each package python do_package_qa () { bb.note("DO PACKAGE QA") logdir = d.getVar('T', True) pkg = d.getVar('PN', True) # Check the compile log for host contamination compilelog = os.path.join(logdir,"log.do_compile") statement = "grep -e 'CROSS COMPILE Badness:' -e 'is unsafe for cross-compilation' %s > /dev/null" % compilelog if os.system(statement) == 0: bb.warn("%s: The compile log indicates that host include and/or library paths were used. Please check the log '%s' for more information." % \ (pkg, compilelog)) # Check the install log for host contamination installlog = os.path.join(logdir,"log.do_install") statement = "grep -e 'CROSS COMPILE Badness:' -e 'is unsafe for cross-compilation' %s > /dev/null" % installlog if os.system(statement) == 0: bb.warn("%s: The install log indicates that host include and/or library paths were used. Please check the log '%s' for more information." % \ (pkg, installlog)) # Scan the packages... pkgdest = d.getVar('PKGDEST', True) packages = d.getVar('PACKAGES', True) # no packages should be scanned if not packages: return testmatrix = d.getVarFlags("QAPATHTEST") g = globals() walk_sane = True rdepends_sane = True for package in packages.split(): skip = (d.getVar('INSANE_SKIP_' + package, True) or "").split() if skip: bb.note("Package %s skipping QA tests: %s" % (package, str(skip))) warnchecks = [] for w in (d.getVar("WARN_QA", True) or "").split(): if w in skip: continue if w in testmatrix and testmatrix[w] in g: warnchecks.append(g[testmatrix[w]]) errorchecks = [] for e in (d.getVar("ERROR_QA", True) or "").split(): if e in skip: continue if e in testmatrix and testmatrix[e] in g: errorchecks.append(g[testmatrix[e]]) bb.note("Checking Package: %s" % package) path = "%s/%s" % (pkgdest, package) if not package_qa_walk(path, warnchecks, errorchecks, skip, package, d): walk_sane = False if not package_qa_check_rdepends(package, pkgdest, skip, d): rdepends_sane = False if not walk_sane or not rdepends_sane: bb.fatal("QA run found fatal errors. Please consider fixing them.") bb.note("DONE with PACKAGE QA") } python do_qa_staging() { bb.note("QA checking staging") if not package_qa_check_staged(bb.data.expand('${SYSROOT_DESTDIR}/${STAGING_LIBDIR}',d), d): bb.fatal("QA staging was broken by the package built above") } python do_qa_configure() { configs = [] workdir = d.getVar('WORKDIR', True) bb.note("Checking autotools environment for common misconfiguration") for root, dirs, files in os.walk(workdir): statement = "grep -e 'CROSS COMPILE Badness:' -e 'is unsafe for cross-compilation' %s > /dev/null" % \ os.path.join(root,"config.log") if "config.log" in files: if os.system(statement) == 0: bb.fatal("""This autoconf log indicates errors, it looked at host include and/or library paths while determining system capabilities. Rerun configure task after fixing this. The path was '%s'""" % root) if "configure.ac" in files: configs.append(os.path.join(root,"configure.ac")) if "configure.in" in files: configs.append(os.path.join(root, "configure.in")) cnf = d.getVar('EXTRA_OECONF', True) or "" if "gettext" not in d.getVar('P', True) and "gcc-runtime" not in d.getVar('P', True) and "--disable-nls" not in cnf: ml = d.getVar("MLPREFIX", True) or "" if bb.data.inherits_class('native', d) or bb.data.inherits_class('cross', d) or bb.data.inherits_class('crosssdk', d) or bb.data.inherits_class('nativesdk', d): gt = "gettext-native" elif bb.data.inherits_class('cross-canadian', d): gt = "gettext-nativesdk" else: gt = "virtual/" + ml + "gettext" deps = bb.utils.explode_deps(d.getVar('DEPENDS', True) or "") if gt not in deps: for config in configs: gnu = "grep \"^[[:space:]]*AM_GNU_GETTEXT\" %s >/dev/null" % config if os.system(gnu) == 0: bb.fatal("""%s required but not in DEPENDS for file %s. Missing inherit gettext?""" % (gt, config)) if not package_qa_check_license(workdir, d): bb.fatal("Licensing Error: LIC_FILES_CHKSUM does not match, please fix") } # The Staging Func, to check all staging #addtask qa_staging after do_populate_sysroot before do_build do_populate_sysroot[postfuncs] += "do_qa_staging " # Check broken config.log files, for packages requiring Gettext which don't # have it in DEPENDS and for correct LIC_FILES_CHKSUM #addtask qa_configure after do_configure before do_compile do_configure[postfuncs] += "do_qa_configure " 08 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 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