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Revision 166 - (hide annotations) (download)
Mon Sep 12 06:50:53 2005 UTC (8 years, 10 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 28991 byte(s)
Make libsb_fini() do cleanup a bit more complete just in case we get another
uClibc 'call preloaded library fini before that of app' issue ... probably
will not help much, but we try.

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

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