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

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