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Revision 173 - (hide annotations) (download)
Mon Nov 28 10:05:52 2005 UTC (8 years, 8 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29393 byte(s)
Cleanup environ variables.
1 ferringb 2 # ChangeLog for Path Sandbox
2 vapier 53 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 ferringb 2 # $Header$
4    
5 azarah 173 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
6     sandbox.c, sandbox.h:
7 azarah 172
8     Check generic getcwd()'s return as well for validity, bug #101728.
9    
10 azarah 173 Cleanup environ variables.
11    
12 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
13    
14     Do not pass mode to true_open and true_open64 if not needed. Should fix a
15     segfault in some cases.
16    
17 azarah 169 * sandbox-1.2.13 (2005/09/12)
18 azarah 167
19 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
20 azarah 165
21     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
22     itself.
23    
24 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
25     uClibc 'call preloaded library fini before that of app' issue ... probably
26     will not help much, but we try.
27    
28 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
29    
30     Also allow symlink() system call to operate on a symlink in a writable path
31     that points to non-writable path, bug #104711.
32    
33 azarah 160 * sandbox-1.2.12 (2005/08/05)
34    
35 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
36     sandbox.h:
37 azarah 156
38     Do not give an access violation if the access() system call do not have
39     write/read access - it does not actually modify, so we only need to return
40     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
41     bug #101433.
42    
43 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
44     and make the current directory the work directory. Also rename the variable
45     portage_tmp_dir to work_dir.
46    
47 azarah 158 Remove the tmp_dir variable - we do not need it.
48    
49 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
50    
51 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52    
53     Still do normal log if debugging is requested.
54    
55 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
56     to only enable if equal to "1" or "yes".
57    
58 azarah 155 Add /dev/tts to write permit, bug #42809.
59    
60 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
61     sandbox_futils.c:
62    
63     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
64     in libsandbox .. bug #100309.
65    
66 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
67    
68     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
69    
70 azarah 149 * sandbox-1.2.11 (2005/07/14)
71    
72 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
73     Fix getcwd, bug #98419.
74    
75 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
76     libsandbox.c:
77 azarah 146 - Try to cleanup and make error handling/printing consistent.
78     - Remove old logs if present and conflicting with current.
79 azarah 147 - Fix compile error with previous change, and return rather then exit().
80 azarah 145
81 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
82     sandbox.h, sandbox_futils.c:
83     - Fix possible segfault in env init code.
84     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
85     write to /var/log/sandbox/, so in theory do not need all that.
86 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
87 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
88 azarah 142 - Remove unused includes and variables.
89 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
90     OUTSIDE_LIBSANDBOX is not defined.
91 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
92     printing's last line not honouring NOCOLOR.
93 azarah 138
94 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
95     libsandbox.c:
96     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
97     write to it.
98 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
99 azarah 136 - Add check_prefixes() with major cleanup on check_access().
100 azarah 137 - Cleanup init_env_entries() and check_prefixes().
101 azarah 134
102 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
103     sandbox_futils.c, libsandbox.c:
104     Remove unused 'pids file' code.
105    
106 azarah 128 * sandbox-1.2.10 (2005/07/03)
107    
108 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
109     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
110    
111 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
112     General cleanups:
113     - Remove fooling around with exit codes - we error out on presence of a log
114     anyhow.
115 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
116     appropriate there.
117 azarah 123
118 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
119     Cleanup the fail_nametoolong stuff a bit more.
120    
121 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
122 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
123    
124     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
125 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
126     in check_syscall(). Should speed things up a bit (at least for the getcwd()
127     and long path name test it goes down to under a second, and not 10+ seconds
128     like before). Also warn if we skip checking due to the canonicalized path
129     being too long.
130    
131     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
132 azarah 118 More comment/readability cleanups.
133    
134 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
135     sandbox_futils.c, libsandbox.c:
136     Some strncpy/strncat and other cleanups.
137    
138 azarah 115 * sandbox-1.2.9 (2005/06/09)
139    
140 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
141     Move symlink hack down a bit to try and minimize on the amount of lstat()
142     calls we do.
143    
144 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
145     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
146    
147 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
148     Add wrapper for access() function, bug #85413.
149    
150 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
151     Use generic getcwd() implementation from uclibc - should be more portable
152     and looks a bit cleaner.
153    
154 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
155     Make sure our true_* pointers are initialized to NULL, and that we check for
156     all references that they are valid.
157    
158 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
159     Be default we will fail if the path name we try to canonicalize is too long.
160     This however could cause issues with some things (bug #94630 and #21766), so
161     if fail_nametoolong == 0, canonicalize() will return a null length string and
162     do not fail.
163    
164 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
165     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
166     make sure we re-export the new TMPDIR environment variable.
167    
168 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
169     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
170     by Marcus D. Hanwell <cryos@gentoo.org>.
171    
172 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
173     Add /dev/console to write list, bug #38588.
174    
175 azarah 102 * sandbox-1.2.8 (2005/05/13)
176    
177 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
178 azarah 101 sandbox.h, sandbox_futils.c:
179     General cleanups.
180    
181     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
182 azarah 100 sandbox.h:
183     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
184    
185     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
186 azarah 99 sandbox.h, sandbox_futils.c:
187     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
188     to use TMPDIR if present in environment.
189    
190 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
191     Remove sandbox_log_file from main() as its no longer used.
192    
193 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
194     sandbox_futils.c:
195     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
196     if already exported when sandbox started). Fix get_sandbox_log() and new
197     get_sandbox_debug_log() to not use already exported environment variables if
198     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
199     SB_PATH_MAX fixes.
200    
201 azarah 94 * sandbox-1.2.7 (2005/05/12)
202    
203 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
204     sandbox_futils.c:
205     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
206    
207 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
208     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
209     with '(null)' in it if we did not call sandbox with absolute path.
210    
211 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
213     for the child.
214    
215     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216 azarah 90 Remove global preload_adaptable as it is no longer used.
217    
218     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
219 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
220     to try and avoid issues like bug #91541 that causes sandbox to crash if
221     we set LD_PRELOAD sandbox side already.
222    
223 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
224 azarah 88 Move print_sandbox_log() up to make things neater.
225    
226     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
227 azarah 87 Remove load_preload_libs(), as its not used anymore.
228    
229 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
230 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
231    
232     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
233 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
234    
235     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
236 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
237    
238 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
239     Fix typo in code that checks if we got valid group information, causing a
240     segmentation fault, bug #91637.
241    
242 azarah 79 * sandbox-1.2.6 (2005/05/10)
243    
244 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
245     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
246     for some odd reason, bug #91541.
247    
248 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
249     Fix typo (sizeof -> strlen).
250    
251 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
252     rewrote the sbcontext caching code so it accounts for env changes since lib
253     initialization.
254    
255 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
256     We create libctest.c via configure, so no need to keep it around. Do some
257     cleanup related to libctest.c and libctest during configure.
258    
259 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
260     Add rename support of symlinks pointing to protected files/directories.
261    
262 azarah 72 * sandbox-1.2.5 (2005/05/04)
263    
264 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
265     sandbox.bashrc:
266     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
267     already set, init of the env vars fails for some reason, so do this later on,
268     and do not warn (bug #91431).
269    
270 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
271     sandbox.bashrc:
272     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
273    
274 azarah 68 * sandbox-1.2.4 (2005/05/03)
275    
276 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
277     Do not init the env entries with each call, as it creates too many calls to
278 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
279 azarah 66
280 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
281     Add /dev/pty to default write list. Noticed by Morfic.
282    
283 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
284     sandbox.h:
285     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
286     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
287    
288 azarah 59 * sandbox-1.2.3 (2005/04/29)
289    
290 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
291     Do not check for (*&#$(* CXX or F77.
292    
293 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
294     Do not append '/' to pathname in filter_path() if it already ends with it.
295    
296 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
297     With az's help, clean up autotools to work with cross-compiling.
298    
299 azarah 59 * sandbox-1.2.2 (2005/04/28)
300 azarah 48
301 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
302     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
303     have issues; bug #90592.
304    
305 azarah 59 * sandbox-1.2.1 (2005/04/23)
306 azarah 44
307 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
308     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
309     Make sure all functions used in libsandbox.c is declared static. Define
310     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
311     linking with its object. Hopefully this will fix bug #90153.
312    
313 azarah 59 * sandbox-1.2 (2005/04/23)
314 azarah 46
315 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
316     Allow lchown a symlink in write-allowed path pointing to write-denied
317     target.
318    
319 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
320     Also show resolved symlink names in the log.
321    
322 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
323     Seems -nostdlib was the problem with the constructor/destructor - remove it
324     from Makefile.am, and change the constructor/destructor names again.
325    
326 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
327     Also rename the _init() and _fini() declarations.
328    
329 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
330     Fixup the constructor/destructor function names again (they should be _init()
331     and _fini() it seems, and not being called caused sandbox_lib_path to be
332     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
333     Add both the path in given SANDBOX_x variable, as well as its symlink
334     resolved path in init_env_entries(). Modify filter_path() to be able to
335     resolve paths without resolving symlinks, as well as to be able to resolve
336     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
337     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
338     for bug #31019 cause access violations if we try to remove a symlink that is
339     not in protected path, but points to a protected path. Fix a memory leak in
340     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
341     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
342     (pid_string was uninitialized). General syntax cleanups.
343    
344 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
345     infamous "pids file is not a regular file" w/out newline bug.
346    
347 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
348     Correct libc_version path detection, since it was screwing up if libdir !=
349     "/lib/".
350    
351     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
352 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
353    
354 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
355 azarah 31 Fix symbols.in not added to dist.
356    
357 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
358 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
359     White space fixes.
360    
361 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
362 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
363 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
364     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
365     for glibc and other libc's that use this. Update libsandbox.c to use these
366     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
367     process unset it.
368    
369 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
370 ferringb 28 killed off _init and _fini in favor of
371     void __attribute__ ((constructor)) init_func and
372     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
373    
374 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
375     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
376     having the hick-ups.
377    
378 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
379     Makefile.am: Fixed compilation.
380    
381 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
382     Gutted the bugger so it stops checking for a c++ and fortran compiler.
383     Do *not* regenerate aclocal.m4 for making a release until a better
384     solution is created.
385    
386 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
387     Removal of more hardcoded paths.
388    
389 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
390     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
391    
392     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
393 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
394     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
395     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
396     To get to a point of testing, automake && autoconf; created requisite files w/
397     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
398     /lib and /usr/lib/portage/bin.
399    
400 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
401     closing out bug #70225, potential overflow of the sandbox_pids_file var.
402    
403     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
404     (think it was at least) allows intermixing of code and data segments. bug #70351
405     should be fixed by this.
406    
407     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
408     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
409    
410     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
411     Seth Robertson that tracked down all adjuct flags for read operations that
412     do not invoke a write operation.
413    
414     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
415     Another fix from jstubbs regarding a free() on a stack variable for the
416     environment -- tracking now prevents extraneous free()'s segfault.
417    
418     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
419     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
420     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
421     Also remove the errno = ESUCCESS settings as documentation points out that
422     a library isn't allowed to do that.
423    
424     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
425     file_security_check() function to check random potential exploits on files
426     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
427     the 'system-crippling' exploits (bug 21923) and catches a few other
428     potential problems.
429    
430     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
431     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
432    
433     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
434     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
435     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
436    
437     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
438     Fix permissions and group of pids file and logs. Permissions should be 0664
439     and group should be 'portage'. Bug #34260.
440    
441     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
442     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
443     to the real execve (in our execve wrapper). Seems that on some arches (sparc
444     among others) do not allow us to tamper with the readonly copy passed to
445     execve, so pass our own copy of the environment. Bug #42290.
446    
447     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
448     Changed tail to head and added a notice about duration of glibc check.
449    
450     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
451     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
452     as there isn't a guarentee that it is dynamic.
453    
454     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
455     If 'file' passed to before_syscall(const char *func, const char *file) is
456     invalid, we should set errno to ENOENT, and not EINVAL. This should
457     close bug #32238.
458    
459     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
460     Fix a bug that occurs mainly on 64bit arch, where the file passed to
461     the functions we wrap, is invalid, and then cause canonicalize to pass
462     garbage to before_syscall(), thanks to great detective work from
463     Andrea Luzzardi <al@sig11.org> (bug #29846).
464    
465     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
466     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
467    
468     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
469     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
470     only checked the destination patch, and not the source, so we could move
471     a protected file to a unprotected directory, and then delete/modify it.
472     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
473    
474     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
475     Added python2.3 to the predict section/variable.
476    
477     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
478     sandbox.h, sandbox_futils.c :
479     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
480     it is not set, it will revert to its old value.
481    
482     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
483     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
484     rather than failing with a violation, bug #29748.
485    
486     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487     Fix canonicalize() to ignore calls with path = "".
488    
489     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
490     sandbox_futils.c, canonicalize.c :
491     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
492     call handled strings larger than PATH_MAX (bug #21766). It however does not
493     work the same on 2.4 kernels.
494    
495     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
496     do not need the system call. We use the default getcwd() function via a
497     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
498     means the current directory was removed, OR that the the system call for
499     getcwd failed (curious is that it do not fail and return NULL or set
500     errno, but rather just truncate the retured directory - usually from the
501     start), and if so, we use the generic getcwd() function (__egetcwd). Note
502     that we do not use the generic version all the time, as it calls lstat()
503     a great number of times, and performance degrade much.
504    
505     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
506     libsandbox.c :
507     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
508    
509     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
510     create-localdecls :
511     When checking path names of files accessed, we need to canonicalize it, else
512     it may be a symlink in a 'write allowed' directory pointing to a file in a
513     directory we should not have write access to.
514    
515     With something like coreutils-5.0, we have two problems:
516     1) One of the tests checks if getcwd() can return a path longer than
517     PATH_MAX. This test then tries to create a dir which even while
518     created local (mkdir("conftest2")), it ends up being resolved with
519     a name that is much larger than PATH_MAX. The problem now is that
520     canonicalize() have undefined behaviour when the path was too long
521     (returned wrongly truncated paths, etc), and pass the wrong path to
522     before_syscall() (causing the bogus sandbox violations).
523     2) The ecanonicalize() function we used, along with the canonicalize()
524     function did not support longer than PATH_MAX. This is partly a
525     cause for 1), but the error checking (rather lack of it) of calls
526     to erealpath() in canonicalize() was the prime reason for 1).
527    
528     As we do not use this canonicalized name to call the function, we resolve this
529     by fixing canonicalize() to do better error checking, and ecanonicalize() as
530     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
531     While they will resolve paths properly now, and can check if a write/read is
532     allowed, the functions called from the sandboxed environment will still work
533     as expected.
534    
535     This should resolve bug #21766.
536    
537     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
538     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
539     it (bug #16298).
540    
541     Problem is that for some reason locale fopen's locale.alias with mode "rm".
542    
543     -------------------------------------------------------
544     nosferatu root # grep fopen locale.log
545     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
546     nosferatu root #
547     --------------------------------------------------------
548    
549     I checked the source of locale, but it have fopen with mode 'r', so
550     not sure where the "rm" mode comes from. Anyhow, changed the check in
551     before_syscall_open_char() to also see mode "rm" as readonly.
552    
553     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
554    
555     Add glibc-2.3 support.
556    
557     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
558    
559     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
560     operations releated to preload, as well as only try to modify ld.so.preload
561     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
562     not using ld.so.preload. Fix to not write this instance of sandbox's pid
563     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
564    
565     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
566    
567     Changed the LD to CC for hppa.
568    
569     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
570    
571     Killed the previous changes I made.
572    
573     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
574    
575     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
576    
577     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
578    
579     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
580    
581     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
582    
583     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
584     for this fix.
585    
586     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
587    
588     sandbox_futils defined a dirname() function that was masking the same
589     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
590     '/usr/lib/portage/bi/'). Fixed function to return expected results and
591     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
592     11231.
593    
594     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
595    
596     Fix a segfault in libsandbox.c if canonicalize() was called with
597     first parameter = NULL.
598    
599     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
600    
601     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
602     cleanup() for this.
603    
604     Change cleanup() in sandbox.c not to exit with fail status if
605     the pidsfile is missing. We really should still display sandbox
606     violations if they occured.
607    
608     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
609    
610     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
611     the last sandbox running.
612    
613     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
614    
615     Major cleanups to mainly libsandbox.c again.
616    
617     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
618    
619     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
620     parties involved should please contact me so that we can fix it.
621    
622     Add opendir wrapper to libsandbox.c.
623    
624     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
625    
626     Do some more cleanups to ecanonicalize(), as it dropped filenames in
627     rare cases (after my symlink cleanups), and caused glibc to bork.
628     These fixes went into canonicalize.c.
629    
630     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
631    
632     Fix spawn_shell() and main() in sandbox.c to properly return fail
633     status.
634    
635     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
636    
637     The new canonicalize() function in libsandbox.c also resolved symlinks,
638     which caused on cleaning sandbox errors if the symlink pointed to a
639     file in the live root. Ripped out canonicalize() and realpath() from
640     glibc; removed the symlink stuff, and changed them to ecanonicalize()
641     and erealpath().
642    
643     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
644    
645     Ripped out all the wrappers, and implemented those of InstallWatch.
646     Losts of cleanups and bugfixes. Implement a execve that forces
647     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
648     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
649     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
650     parts; it now have an install target.
651    
652     Reformat the whole thing to look somewhat like the reworked sandbox.c
653     and new sandbox.h and sandbox_futils.c from:
654    
655     Brad House <brad@mainstreetsoftworks.com>.
656    
657     Additional Copyrights now due to the InstallWatch code:
658    
659     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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