summaryrefslogtreecommitdiff
path: root/classes/insane.bbclass
blob: a3ca21d1dc0725bba7cf879a3770261b8b6f525c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
# 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
#


#
# We need to have the scanelf utility as soon as
# possible and this is contained within the pax-utils-native
#


# We play a special package function
inherit package
PACKAGE_DEPENDS += "pax-utils-native"
PACKAGEFUNCS += " do_package_qa "


#
# 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 {
            "linux" : { 
                        "arm" :       (40,    97,    0,          True,          True),
                        "armeb":      (40,    97,    0,          False,         True),
                        "powerpc":    (20,     0,    0,          False,         True),
                        "i386":       ( 3,     0,    0,          True,          True),
                        "i486":       ( 3,     0,    0,          True,          True),
                        "i586":       ( 3,     0,    0,          True,          True),
                        "i686":       ( 3,     0,    0,          True,          True),
                        "x64_64":     (62,     0,    0,          True,          False),
                        "ia64":       (50,     0,    0,          True,          False),
                        "alpha":      (36902,  0,    0,          True,          False),
                        "hppa":       (15,     3,    0,          False,         True),
                        "m68k":       ( 4,     0,    0,          False,         True),
                        "mips":       ( 8,     0,    0,          False,         True),
                        "s390":       (22,     0,    0,          False,         True),
                        "sparc":      ( 2,     0,    0,          False,         True),
                      },
            "linux-uclibc" : { 
                        "arm" :       (40,    97,    0,          True,          True),
                        "armeb":      (40,    97,    0,          False,         True),
                        "powerpc":    (20,     0,    0,          False,         True),
                        "mipsel":     ( 8,     0,    0,          True,          True),
                      },
            "linux-gnueabi" : {
                        "arm" :       (40,     0,    0,          True,          True),
                      },
        }

# factory for a class, embedded in a method
def package_qa_get_elf(path, bits32):
    class ELFFile:
        EI_NIDENT = 16

        EI_CLASS      = 4
        EI_DATA       = 5
        EI_VERSION    = 6
        EI_OSABI      = 7
        EI_ABIVERSION = 8

        # possible values for EI_CLASS
        ELFCLASSNONE = 0
        ELFCLASS32   = 1
        ELFCLASS64   = 2

        # possible value for EI_VERSION
        EV_CURRENT   = 1

        # possible values for EI_DATA
        ELFDATANONE  = 0
        ELFDATA2LSB  = 1
        ELFDATA2MSB  = 2

        def my_assert(expectation, result):
            if not expectation == result:
                #print "'%x','%x'" % (ord(expectation), ord(result))
                raise "This does not work as expected"
        my_assert = staticmethod(my_assert)

        def __init__(self, name):
            self.name = name

        def open(self):
            self.file = file(self.name, "r")
            self.data = self.file.read(ELFFile.EI_NIDENT+4)

            ELFFile.my_assert(len(self.data), ELFFile.EI_NIDENT+4)
            ELFFile.my_assert(self.data[0], chr(0x7f) )
            ELFFile.my_assert(self.data[1], 'E')
            ELFFile.my_assert(self.data[2], 'L')
            ELFFile.my_assert(self.data[3], 'F')
            if bits32 :
                ELFFile.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS32)) # only 32 bits
            else:
                ELFFile.my_assert(self.data[ELFFile.EI_CLASS], chr(ELFFile.ELFCLASS64)) # only 64 bits
            ELFFile.my_assert(self.data[ELFFile.EI_VERSION], chr(ELFFile.EV_CURRENT) )

            self.sex = self.data[ELFFile.EI_DATA]
            if self.sex == chr(ELFFile.ELFDATANONE):
                raise "Can't be"
            elif self.sex == chr(ELFFile.ELFDATA2LSB):
                self.sex = "<"
            elif self.sex == chr(ELFFile.ELFDATA2MSB):
                self.sex = ">"
            else:
                raise "Even more worse"

        def osAbi(self):
            return ord(self.data[ELFFile.EI_OSABI])

        def abiVersion(self):
            return ord(self.data[ELFFile.EI_ABIVERSION])

        def isLittleEndian(self):
            return self.sex == "<"

        def isBigEngian(self):
            return self.sex == ">"

        def machine(self):
            """
            We know the sex stored in self.sex and we
            know the position
            """
            import struct
            (a,) = struct.unpack(self.sex+"H", self.data[18:20])
            return a

    return ELFFile(path)


#
#
# Known Error classes
# 0 - non dev contains .so
# 1 - package contains a dangerous RPATH
# 2 - package depends on debug package
# 3 - non dbg contains .so
# 4 - wrong architecture
# 5 - .la contains installed=yes or reference to the workdir
# 6 - .pc contains reference to /usr/include or workdir
#
#

def package_qa_clean_path(path,d):
    import bb
    return path.replace(bb.data.getVar('TMPDIR',d,True),"")

def package_qa_make_fatal_error(error_class, name, path,d):
    """
    decide if an error is fatal

    TODO: Load a whitelist of known errors
    """
    if error_class == 0:
        return False
    else:
        return True

def package_qa_write_error(error_class, name, path, d):
    import bb, os
    if not bb.data.getVar('QA_LOG', d):
        return

    ERROR_NAMES =[
        "non dev contains .so",
        "package contains RPATH",
        "package depends on debug package",
        "non dbg contains .debug",
        "wrong architecture",
        "evil hides inside the .la",
        "evil hides inside the .pc",
    ]


    log_path = os.path.join( bb.data.getVar('T', d, True), "log.qa_package" )
    f = file( log_path, "a+")
    print >> f, "%s, %s, %s" % (ERROR_NAMES[error_class], name, package_qa_clean_path(path,d))
    f.close()


def package_qa_check_rpath(file,name,d):
    """
    Check for dangerous RPATHs
    """
    import bb, os
    scanelf = os.path.join(bb.data.getVar('STAGING_BINDIR_NATIVE',d,True),'scanelf')
    bad_dir = bb.data.getVar('TMPDIR', d, True) + "/work"
    if not os.path.exists(scanelf):
        bb.fatal("Can not check RPATH scanelf not found")
    if not bad_dir in bb.data.getVar('WORKDIR', d, True):
        bb.fatal("This class assumed that WORKDIR is ${TMPDIR}/work... Not doing any check")

    output = os.popen("%s -Byr %s" % (scanelf,file))
    txt    = output.readline().rsplit()
    if bad_dir in txt:
        package_qa_write_error( 1, name, file, d)
        bb.error("QA Issue package %s contains bad RPATH %s in file %s" % (name, txt, file))
        return False

    return True

def package_qa_check_devdbg(path, name,d):
    """
    Check for debug remains inside the binary or
    non dev packages containing
    """

    import bb, os
    sane = True

    if not "-dev" in name:
        if path[-3:] == ".so" and os.path.islink(path):
            package_qa_write_error( 0, name, path, d )
            bb.error("QA Issue: non -dev package contains symlink .so: %s path '%s'" % (name, package_qa_clean_path(path,d)))
            if package_qa_make_fatal_error( 0, name, path, d ):
                sane = False

    if not "-dbg" in name:
        if '.debug' in path:
            package_qa_write_error( 3, name, path, d )
            bb.error("QA Issue: non debug package contains .debug directory: %s path %s" % (name, package_qa_clean_path(path,d)))
            if package_qa_make_fatal_error( 3, name, path, d ):
                sane = False

    return sane

def package_qa_check_perm(path,name,d):
    """
    Check the permission of files
    """
    sane = True
    return sane

def package_qa_check_arch(path,name,d):
    """
    Check if archs are compatible
    """
    import bb, os
    target_os   = bb.data.getVar('TARGET_OS',   d, True)
    target_arch = bb.data.getVar('TARGET_ARCH', d, True)

    # 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 True

    #if this will throw an exception, then fix the dict above
    (machine, osabi, abiversion, littleendian, bits32) = package_qa_get_machine_dict()[target_os][target_arch]
    elf = package_qa_get_elf(path, bits32)
    try:
        elf.open()
    except:
        # just for debbugging to check the parser, remove once convinced...
        return True

    if not machine == elf.machine():
        bb.error("Architecture did not match (%d to %d) on %s" %(machine, elf.machine(), package_qa_clean_path(path,d)))
        return not package_qa_make_fatal_error( 4, name, path, d )
    elif not littleendian == elf.isLittleEndian():
        bb.error("Endiannes did not match (%d to %d) on %s" % (littleendian, elf.isLittleEndian(), package_qa_clean_path(path,d)))
        return not package_qa_make_fatal_error( 4, name, path, d )

    return True

def package_qa_check_pcla(path,name,d):
    """
    .pc and .la files should not point to the WORKDIR
    """
    sane = True
    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
    """
    import os, bb

    sane = True
    workdir = os.path.join(bb.data.getVar('TMPDIR', d, True), "work")

    if bb.data.inherits_class("native", d):
        installed = "installed=no"
    else:
        installed = "installed=yes"

    # 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[-2:] == "la":
                file_content = open(path).read()
                if installed in file_content or workdir in file_content:
                    bb.error("QA issue: %s failed sanity test (reference to workdir or installed)" % file )
                    if package_qa_make_fatal_error( 5, "staging", path, d):
                        sane = True
            elif file[-2:] == "pc":
                file_content = open(path).read()
                if workdir in file_content:
                    bb.error("QA issue: %s failed sanity test (reference to workdir)" % file )
                    if package_qa_make_fatal_error( 6, "staging", path, d):
                        sane = False

    return sane

# Walk over all files in a directory and call func
def package_qa_walk(path, funcs, package,d):
    import os
    sane = True

    for root, dirs, files in os.walk(path):
        for file in files:
            path = os.path.join(root,file)
            for func in funcs:
                if not func(path, package,d):
                    sane = False

    return sane


def package_qa_check_rdepends(pkg, workdir, d):
    import bb
    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/install/%s" % (workdir, pkg)

        bb.data.setVar('ROOT', '', localdata) 
        bb.data.setVar('ROOT_%s' % pkg, root, localdata)
        pkgname = bb.data.getVar('PKG_%s' % pkg, localdata, 1)
        if not pkgname:
            pkgname = pkg
        bb.data.setVar('PKG', pkgname, localdata)

        overrides = bb.data.getVar('OVERRIDES', localdata)
        if not overrides:
            raise bb.build.FuncFailed('OVERRIDES not defined')
        overrides = bb.data.expand(overrides, localdata)
        bb.data.setVar('OVERRIDES', overrides + ':' + pkg, localdata)

        bb.data.update_data(localdata)

        # Now check the RDEPENDS
        rdepends = explode_deps(bb.data.getVar('RDEPENDS', localdata, True) or "")


        # Now do the sanity check!!!
        for rdepend in rdepends:
            if "-dbg" in rdepend:
                package_qa_write_error( 2, name, rdepend, d )
                bb.error("QA issue, koen give us a better msg!!!")
                if package_qa_make_fatal_error( 2, name, rdepend, d ):
                    sane = False

    return sane

# The PACKAGE FUNC to scan each package
python do_package_qa () {
    bb.note("DO PACKAGE QA")
    workdir = bb.data.getVar('WORKDIR', d, True)
    packages = bb.data.getVar('PACKAGES',d, True)

    # no packages should be scanned
    if not packages:
        return

    walk_sane = True
    rdepends_sane = True
    for package in packages.split():
        bb.note("Checking Package: %s" % package)
        path = "%s/install/%s" % (workdir, package)
        if not package_qa_walk(path, [package_qa_check_rpath, package_qa_check_devdbg, package_qa_check_perm, package_qa_check_arch], package, d):
            walk_sane  = False
        if not package_qa_check_rdepends(package, workdir, d):
            rdepends_sane = False

    if not walk_sane or not rdepends_sane:
        bb.fatal("QA ran found fatal errors. Please consider fixing them")
    bb.note("DONE with PACKAGE QA")
}


# The Staging Func, to check all staging
addtask qa_staging after do_populate_staging before do_build
python do_qa_staging() {
    bb.note("QA checking staging")

    if not package_qa_check_staged(bb.data.getVar('STAGING_LIBDIR',d,True), d):
        bb.fatal("QA staging was broken by the package built above")
}

# Check broken config.log files
addtask qa_configure after do_configure before do_compile
python do_qa_configure() {
    bb.note("Checking sanity of the config.log file")
    import os
    for root, dirs, files in os.walk(bb.data.getVar('WORKDIR', d, True)):
        if "config.log" in files:
            if os.system("grep 'CROSS COMPILE Badness:' %s > /dev/null" % (os.path.join(root,"config.log"))) == 0:
                bb.fatal("This autoconf log indicates errors, it looked at host includes. Rerun configure task after fixing this. Path was '%s'" % root)
}