def process_elf_dependencies(action, pkg_vars, dyn_tok_conv,
kernel_paths, **kwargs):
"""Produce the elf dependencies for the file delivered in the action
provided.
'action' is the file action to analyze.
'pkg_vars' is the list of variants against which the package delivering
the action was published.
'dyn_tok_conv' is the dictionary which maps the dynamic tokens, like
$PLATFORM, to the values they should be expanded to.
'kernel_paths' contains the run paths which kernel modules should use.
"""
if not action.name == "file":
return [], [], {}
installed_path = action.attrs[action.key_attr]
proto_file = action.attrs[PD_LOCAL_PATH]
if not os.path.exists(proto_file):
raise base.MissingFile(proto_file)
if not elf.is_elf_object(proto_file):
return [], [], {}
try:
ei = elf.get_info(proto_file)
ed = elf.get_dynamic(proto_file)
except elf.ElfError, e:
raise BadElfFile(proto_file, e)
def process_elf_dependencies(action, pkg_vars, dyn_tok_conv, kernel_paths,
**kwargs):
"""Produce the elf dependencies for the file delivered in the action
provided.
'action' is the file action to analyze.
'pkg_vars' is the list of variants against which the package delivering
the action was published.
'dyn_tok_conv' is the dictionary which maps the dynamic tokens, like
$PLATFORM, to the values they should be expanded to.
'kernel_paths' contains the run paths which kernel modules should use.
"""
if not action.name == "file":
return [], [], {}
installed_path = action.attrs[action.key_attr]
proto_file = action.attrs[PD_LOCAL_PATH]
if not os.path.exists(proto_file):
raise base.MissingFile(proto_file)
if not elf.is_elf_object(proto_file):
return [], [], {}
try:
ei = elf.get_info(proto_file)
ed = elf.get_dynamic(proto_file)
except elf.ElfError, e:
raise BadElfFile(proto_file, e)
def test_non_elf(self):
"""Test that elf routines gracefully handle non-elf objects."""
p = "this-is-not-an-elf-file.so"
self.make_misc_files({p: "this is only a test"})
os.chdir(self.test_root)
self.assertEqual(elf.is_elf_object(p), False)
self.assertRaises(elf.ElfError, elf.get_dynamic, p)
self.assertRaises(elf.ElfError, elf.get_info, p)
def test_non_elf(self):
"""Test that elf routines gracefully handle non-elf objects."""
p = "this-is-not-an-elf-file.so"
self.make_misc_files({p: "this is only a test"})
os.chdir(self.test_root)
self.assertEqual(elf.is_elf_object(p), False)
self.assertRaises(elf.ElfError, elf.get_dynamic, p)
self.assertRaises(elf.ElfError, elf.get_info, p)
def test_valid_elf(self):
"""Test that elf routines work on a small set of objects."""
arch = pkg.portable.get_isainfo()[0]
for p in self.elf_paths:
p = re.sub("__ARCH__", arch, p)
self.debug("testing elf file {0}".format(p))
self.assertTrue(os.path.exists(p), "{0} does not exist".format(p))
self.assertEqual(elf.is_elf_object(p), True)
elf.get_dynamic(p)
elf.get_info(p)
def test_valid_elf(self):
"""Test that elf routines work on a small set of objects."""
arch = pkg.portable.get_isainfo()[0]
for p in self.elf_paths:
p = re.sub("__ARCH__", arch, p)
self.debug("testing elf file %s" % p)
self.assert_(os.path.exists(p))
self.assertEqual(elf.is_elf_object(p), True)
elf.get_dynamic(p)
elf.get_info(p)
def file_action(self, action, manifest, engine, pkglint_id="001"):
"""Checks for existence in the proto area."""
if action.name not in ["file"]:
return
path = action.hash
if path == None or path == 'NOHASH':
path = action.attrs["path"]
# check for writable files without a preserve attribute
if "mode" in action.attrs:
mode = action.attrs["mode"]
if (int(mode, 8) & 0222) != 0 and "preserve" not in action.attrs:
engine.error(
_("%(path)s is writable (%(mode)s), but missing a preserve"
" attribute") % {"path": path, "mode": mode},
msgid="%s%s.0" % (self.name, pkglint_id))
elif "preserve" in action.attrs:
if "mode" in action.attrs:
mode = action.attrs["mode"]
if (int(mode, 8) & 0222) == 0:
engine.error(
_("%(path)s has a preserve action, but is not writable (%(mode)s)") % {"path": path, "mode": mode},
msgid="%s%s.4" % (self.name, pkglint_id))
else:
engine.error(
_("%(path)s has a preserve action, but no mode") % {"path": path, "mode": mode},
msgid="%s%s.3" % (self.name, pkglint_id))
# checks that require a physical file to look at
if self.proto_path is not None:
for directory in self.proto_path:
fullpath = directory + "/" + path
if os.path.exists(fullpath):
break
if not os.path.exists(fullpath):
engine.info(
_("%s missing from proto area, skipping"
" content checks") % path,
msgid="%s%s.1" % (self.name, pkglint_id))
elif elf.is_elf_object(fullpath):
# 32/64 bit in wrong place
result = self.__elf_wrong_location_check(fullpath)
if result != None:
engine.error(result % path,
msgid="%s%s.2" % (self.name, pkglint_id))
result = self.__elf_runpath_check(fullpath, engine)
if result != None:
engine.error(result % path,
msgid="%s%s.3" % (self.name, pkglint_id))
result = self.__elf_aslr_check(fullpath, engine)
def file_action(self, action, manifest, engine, pkglint_id="001"):
"""Checks for existence in the proto area."""
if action.name not in ["file"]:
return
path = action.hash
if path == None or path == 'NOHASH':
path = action.attrs["path"]
# check for writable files without a preserve attribute
if "mode" in action.attrs:
mode = action.attrs["mode"]
if (int(mode, 8) & 0222) != 0 and "preserve" not in action.attrs:
engine.error(
_("%(path)s is writable (%(mode)s), but missing a preserve"
" attribute") % {"path": path, "mode": mode},
msgid="%s%s.0" % (self.name, pkglint_id))
elif "preserve" in action.attrs:
if "mode" in action.attrs:
mode = action.attrs["mode"]
if (int(mode, 8) & 0222) == 0:
engine.error(
_("%(path)s has a preserve action, but is not writable (%(mode)s)") % {"path": path, "mode": mode},
msgid="%s%s.4" % (self.name, pkglint_id))
else:
engine.error(
_("%(path)s has a preserve action, but no mode") % {"path": path, "mode": mode},
msgid="%s%s.3" % (self.name, pkglint_id))
# checks that require a physical file to look at
if self.proto_path is not None:
for directory in self.proto_path:
fullpath = directory + "/" + path
if os.path.exists(fullpath):
break
if not os.path.exists(fullpath):
engine.info(
_("%s missing from proto area, skipping"
" content checks") % path,
msgid="%s%s.1" % (self.name, pkglint_id))
elif elf.is_elf_object(fullpath):
# 32/64 bit in wrong place
result = self.__elf_wrong_location_check(fullpath)
if result != None:
engine.error(result % path,
msgid="%s%s.2" % (self.name, pkglint_id))
result = self.__elf_runpath_check(fullpath, engine)
if result != None:
engine.error(result % path,
msgid="%s%s.3" % (self.name, pkglint_id))
def file_action(self, action, manifest, engine, pkglint_id="001"):
"""Various file checks."""
if action.name not in ["file"]:
return
# path to the delivered file
inspath = action.attrs["path"]
# path to the file within the prototype area
path = action.hash
if path is None or path == "NOHASH":
path = inspath
# verify that preserve attribute is correctly used when
# file is writable and not in other cases
if "mode" in action.attrs:
mode = action.attrs["mode"]
writable = bool(int(mode, 8) & 0o222)
if writable and "preserve" not in action.attrs:
engine.error(
f"{path} is writable ({mode}), but missing a preserve attribute",
msgid=f"{self.name}{pkglint_id}.0")
elif not writable and "preserve" in action.attrs:
engine.error(
f"{path} has a preserve action, but is not writable ({mode})",
msgid=f"{self.name}{pkglint_id}.4")
elif "preserve" in action.attrs:
engine.error(f"{path} has a preserve action, but no mode",
msgid=f"{self.name}{pkglint_id}.3")
# checks that require a physical file to look at
if self.proto_path is not None:
for directory in self.proto_path:
fullpath = directory + "/" + path
if os.path.exists(fullpath):
break
if not os.path.exists(fullpath):
engine.info(
f"{path} missing from proto area, skipping content checks",
msgid=f"{self.name}{pkglint_id}.1")
elif elf.is_elf_object(fullpath):
# 32/64 bit in wrong place
self.__elf_location_check(fullpath, inspath, engine,
pkglint_id)
# verify that correct RUNPATH is present
self.__elf_runpath_check(fullpath, engine, pkglint_id)
# verify that ASLR is enabled when appropriate
self.__elf_aslr_check(fullpath, engine, pkglint_id)
def process_elf_dependencies(action, proto_dir, pkg_vars, **kwargs):
"""Given a file action and proto directory, produce the elf dependencies
for that file."""
if not action.name == "file":
return []
installed_path = action.attrs[action.key_attr]
proto_file = os.path.join(proto_dir, installed_path)
if not os.path.exists(proto_file):
raise base.MissingFile(proto_file)
if not elf.is_elf_object(proto_file):
return []
try:
ei = elf.get_info(proto_file)
ed = elf.get_dynamic(proto_file)
except elf.ElfError, e:
raise BadElfFile(proto_file, e)
def process_elf_dependencies(action, proto_dir, pkg_vars, **kwargs):
"""Given a file action and proto directory, produce the elf dependencies
for that file."""
if not action.name == "file":
return []
installed_path = action.attrs[action.key_attr]
proto_file = os.path.join(proto_dir, installed_path)
if not os.path.exists(proto_file):
raise base.MissingFile(proto_file)
if not elf.is_elf_object(proto_file):
return []
try:
ei = elf.get_info(proto_file)
ed = elf.get_dynamic(proto_file)
except elf.ElfError, e:
raise BadElfFile(proto_file, e)
def process_elf_dependencies(action, pkg_vars, dyn_tok_conv, run_paths,
**kwargs):
"""Produce the elf dependencies for the file delivered in the action
provided.
'action' is the file action to analyze.
'pkg_vars' is the list of variants against which the package delivering
the action was published.
'dyn_tok_conv' is the dictionary which maps the dynamic tokens, like
$PLATFORM, to the values they should be expanded to.
'run_paths' contains the run paths which elf binaries should use.
"""
if not action.name == "file":
return [], [], {}
installed_path = action.attrs[action.key_attr]
proto_file = action.attrs[PD_LOCAL_PATH]
if not os.path.exists(proto_file):
raise base.MissingFile(proto_file)
if not elf.is_elf_object(proto_file):
return [], [], {}
try:
ei = elf.get_info(proto_file)
ed = elf.get_dynamic(proto_file)
except elf.ElfError as e:
raise BadElfFile(proto_file, e)
deps = [
d[0]
for d in ed.get("deps", [])
]
rp = ed.get("runpath", "").split(":")
if len(rp) == 1 and rp[0] == "":
rp = []
dyn_tok_conv["$ORIGIN"] = [os.path.join("/",
os.path.dirname(installed_path))]
kernel64 = None
# For kernel modules, default path resolution is /platform/<platform>,
# /kernel, /usr/kernel. But how do we know what <platform> would be for
# a given module? Does it do fallbacks to, say, sun4u?
if installed_path.startswith("kernel") or \
installed_path.startswith("usr/kernel") or \
(installed_path.startswith("platform") and \
installed_path.split("/")[2] == "kernel"):
if rp and (len(rp) > 1 or
not re.match(r'^/usr/gcc/\d/lib$', rp[0])):
raise RuntimeError("RUNPATH set for kernel module "
"({0}): {1}".format(installed_path, rp))
# Add this platform to the search path.
if installed_path.startswith("platform"):
rp.append("/platform/{0}/kernel".format(
installed_path.split("/")[1]))
else:
for p in dyn_tok_conv.get("$PLATFORM", []):
rp.append("/platform/{0}/kernel".format(p))
# Default kernel search path
rp.extend(["/kernel", "/usr/kernel"])
# What subdirectory should we look in for 64-bit kernel modules?
if ei["bits"] == 64:
if ei["arch"] == "i386":
kernel64 = "amd64"
elif ei["arch"] == "sparc":
kernel64 = "sparcv9"
else:
raise RuntimeError("Unknown arch:{0}".format(
ei["arch"]))
else:
for p in default_run_paths:
if ei["bits"] == 64:
p += "/64"
if p not in rp:
rp.append(p)
elist = []
if run_paths:
# add our detected runpaths into the user-supplied one (if any)
rp = base.insert_default_runpath(rp, run_paths)
rp, errs = expand_variables(rp, dyn_tok_conv)
elist.extend([
UnsupportedDynamicToken(proto_file, installed_path, p, tok)
for p, tok in errs
])
res = []
for d in deps:
pn, fn = os.path.split(d)
pathlist = []
for p in rp:
if kernel64:
# Find 64-bit modules the way krtld does.
# XXX We don't resolve dependencies found in
# /platform, since we don't know where under
# /platform to look.
deppath = \
os.path.join(p, pn, kernel64, fn).lstrip(
os.path.sep)
else:
deppath = os.path.join(p, d).lstrip(os.path.sep)
# deppath includes filename; remove that.
head, tail = os.path.split(deppath)
if head:
pathlist.append(head)
res.append(ElfDependency(action, fn, pathlist, pkg_vars,
action.attrs[PD_PROTO_DIR]))
del dyn_tok_conv["$ORIGIN"]
return res, elist, {}
