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Revision 181 - (hide annotations) (download)
Mon Nov 28 11:35:30 2005 UTC (8 years, 7 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29913 byte(s)
Revert 64bit arch test, as we should build the 32bit version without full
path checking as well, and add --enable-multilib switch to configure.

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 181 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
6     sandbox_fdutils.c:
7 azarah 179
8     Detect if we on 64bit arch automatically.
9    
10 azarah 180 Update contact email. Fix quoting.
11    
12 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
13     path checking as well, and add --enable-multilib switch to configure.
14    
15 azarah 176 * sandbox-1.2.14 (2005/11/28)
16    
17 azarah 173 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
18 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
19 azarah 172
20     Check generic getcwd()'s return as well for validity, bug #101728.
21    
22 azarah 173 Cleanup environ variables.
23    
24 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
25     to readonly in sandbox.bashrc.
26    
27 azarah 175 Make sure we use our bashrc.
28    
29 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
30    
31     Do not pass mode to true_open and true_open64 if not needed. Should fix a
32     segfault in some cases.
33    
34 azarah 169 * sandbox-1.2.13 (2005/09/12)
35 azarah 167
36 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
37 azarah 165
38     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
39     itself.
40    
41 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
42     uClibc 'call preloaded library fini before that of app' issue ... probably
43     will not help much, but we try.
44    
45 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
46    
47     Also allow symlink() system call to operate on a symlink in a writable path
48     that points to non-writable path, bug #104711.
49    
50 azarah 160 * sandbox-1.2.12 (2005/08/05)
51    
52 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
53     sandbox.h:
54 azarah 156
55     Do not give an access violation if the access() system call do not have
56     write/read access - it does not actually modify, so we only need to return
57     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
58     bug #101433.
59    
60 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
61     and make the current directory the work directory. Also rename the variable
62     portage_tmp_dir to work_dir.
63    
64 azarah 158 Remove the tmp_dir variable - we do not need it.
65    
66 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
67    
68 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
69    
70     Still do normal log if debugging is requested.
71    
72 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
73     to only enable if equal to "1" or "yes".
74    
75 azarah 155 Add /dev/tts to write permit, bug #42809.
76    
77 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
78     sandbox_futils.c:
79    
80     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
81     in libsandbox .. bug #100309.
82    
83 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
84    
85     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
86    
87 azarah 149 * sandbox-1.2.11 (2005/07/14)
88    
89 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
90     Fix getcwd, bug #98419.
91    
92 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
93     libsandbox.c:
94 azarah 146 - Try to cleanup and make error handling/printing consistent.
95     - Remove old logs if present and conflicting with current.
96 azarah 147 - Fix compile error with previous change, and return rather then exit().
97 azarah 145
98 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
99     sandbox.h, sandbox_futils.c:
100     - Fix possible segfault in env init code.
101     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
102     write to /var/log/sandbox/, so in theory do not need all that.
103 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
104 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
105 azarah 142 - Remove unused includes and variables.
106 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
107     OUTSIDE_LIBSANDBOX is not defined.
108 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
109     printing's last line not honouring NOCOLOR.
110 azarah 138
111 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
112     libsandbox.c:
113     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
114     write to it.
115 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
116 azarah 136 - Add check_prefixes() with major cleanup on check_access().
117 azarah 137 - Cleanup init_env_entries() and check_prefixes().
118 azarah 134
119 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
120     sandbox_futils.c, libsandbox.c:
121     Remove unused 'pids file' code.
122    
123 azarah 128 * sandbox-1.2.10 (2005/07/03)
124    
125 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
126     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
127    
128 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
129     General cleanups:
130     - Remove fooling around with exit codes - we error out on presence of a log
131     anyhow.
132 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
133     appropriate there.
134 azarah 123
135 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
136     Cleanup the fail_nametoolong stuff a bit more.
137    
138 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
139 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
140    
141     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
142 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
143     in check_syscall(). Should speed things up a bit (at least for the getcwd()
144     and long path name test it goes down to under a second, and not 10+ seconds
145     like before). Also warn if we skip checking due to the canonicalized path
146     being too long.
147    
148     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
149 azarah 118 More comment/readability cleanups.
150    
151 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
152     sandbox_futils.c, libsandbox.c:
153     Some strncpy/strncat and other cleanups.
154    
155 azarah 115 * sandbox-1.2.9 (2005/06/09)
156    
157 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
158     Move symlink hack down a bit to try and minimize on the amount of lstat()
159     calls we do.
160    
161 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
162     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
163    
164 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
165     Add wrapper for access() function, bug #85413.
166    
167 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
168     Use generic getcwd() implementation from uclibc - should be more portable
169     and looks a bit cleaner.
170    
171 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
172     Make sure our true_* pointers are initialized to NULL, and that we check for
173     all references that they are valid.
174    
175 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
176     Be default we will fail if the path name we try to canonicalize is too long.
177     This however could cause issues with some things (bug #94630 and #21766), so
178     if fail_nametoolong == 0, canonicalize() will return a null length string and
179     do not fail.
180    
181 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
182     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
183     make sure we re-export the new TMPDIR environment variable.
184    
185 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
186     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
187     by Marcus D. Hanwell <cryos@gentoo.org>.
188    
189 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
190     Add /dev/console to write list, bug #38588.
191    
192 azarah 102 * sandbox-1.2.8 (2005/05/13)
193    
194 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
195 azarah 101 sandbox.h, sandbox_futils.c:
196     General cleanups.
197    
198     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
199 azarah 100 sandbox.h:
200     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
201    
202     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
203 azarah 99 sandbox.h, sandbox_futils.c:
204     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
205     to use TMPDIR if present in environment.
206    
207 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
208     Remove sandbox_log_file from main() as its no longer used.
209    
210 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
211     sandbox_futils.c:
212     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
213     if already exported when sandbox started). Fix get_sandbox_log() and new
214     get_sandbox_debug_log() to not use already exported environment variables if
215     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
216     SB_PATH_MAX fixes.
217    
218 azarah 94 * sandbox-1.2.7 (2005/05/12)
219    
220 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
221     sandbox_futils.c:
222     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
223    
224 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
225     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
226     with '(null)' in it if we did not call sandbox with absolute path.
227    
228 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
229 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
230     for the child.
231    
232     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
233 azarah 90 Remove global preload_adaptable as it is no longer used.
234    
235     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
236 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
237     to try and avoid issues like bug #91541 that causes sandbox to crash if
238     we set LD_PRELOAD sandbox side already.
239    
240 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
241 azarah 88 Move print_sandbox_log() up to make things neater.
242    
243     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
244 azarah 87 Remove load_preload_libs(), as its not used anymore.
245    
246 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
247 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
248    
249     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
250 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
251    
252     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
253 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
254    
255 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
256     Fix typo in code that checks if we got valid group information, causing a
257     segmentation fault, bug #91637.
258    
259 azarah 79 * sandbox-1.2.6 (2005/05/10)
260    
261 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
262     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
263     for some odd reason, bug #91541.
264    
265 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
266     Fix typo (sizeof -> strlen).
267    
268 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
269     rewrote the sbcontext caching code so it accounts for env changes since lib
270     initialization.
271    
272 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
273     We create libctest.c via configure, so no need to keep it around. Do some
274     cleanup related to libctest.c and libctest during configure.
275    
276 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
277     Add rename support of symlinks pointing to protected files/directories.
278    
279 azarah 72 * sandbox-1.2.5 (2005/05/04)
280    
281 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
282     sandbox.bashrc:
283     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
284     already set, init of the env vars fails for some reason, so do this later on,
285     and do not warn (bug #91431).
286    
287 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
288     sandbox.bashrc:
289     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
290    
291 azarah 68 * sandbox-1.2.4 (2005/05/03)
292    
293 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
294     Do not init the env entries with each call, as it creates too many calls to
295 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
296 azarah 66
297 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
298     Add /dev/pty to default write list. Noticed by Morfic.
299    
300 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
301     sandbox.h:
302     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
303     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
304    
305 azarah 59 * sandbox-1.2.3 (2005/04/29)
306    
307 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
308     Do not check for (*&#$(* CXX or F77.
309    
310 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
311     Do not append '/' to pathname in filter_path() if it already ends with it.
312    
313 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
314     With az's help, clean up autotools to work with cross-compiling.
315    
316 azarah 59 * sandbox-1.2.2 (2005/04/28)
317 azarah 48
318 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
319     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
320     have issues; bug #90592.
321    
322 azarah 59 * sandbox-1.2.1 (2005/04/23)
323 azarah 44
324 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
325     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
326     Make sure all functions used in libsandbox.c is declared static. Define
327     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
328     linking with its object. Hopefully this will fix bug #90153.
329    
330 azarah 59 * sandbox-1.2 (2005/04/23)
331 azarah 46
332 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
333     Allow lchown a symlink in write-allowed path pointing to write-denied
334     target.
335    
336 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
337     Also show resolved symlink names in the log.
338    
339 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
340     Seems -nostdlib was the problem with the constructor/destructor - remove it
341     from Makefile.am, and change the constructor/destructor names again.
342    
343 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
344     Also rename the _init() and _fini() declarations.
345    
346 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
347     Fixup the constructor/destructor function names again (they should be _init()
348     and _fini() it seems, and not being called caused sandbox_lib_path to be
349     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
350     Add both the path in given SANDBOX_x variable, as well as its symlink
351     resolved path in init_env_entries(). Modify filter_path() to be able to
352     resolve paths without resolving symlinks, as well as to be able to resolve
353     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
354     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
355     for bug #31019 cause access violations if we try to remove a symlink that is
356     not in protected path, but points to a protected path. Fix a memory leak in
357     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
358     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
359     (pid_string was uninitialized). General syntax cleanups.
360    
361 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
362     infamous "pids file is not a regular file" w/out newline bug.
363    
364 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
365     Correct libc_version path detection, since it was screwing up if libdir !=
366     "/lib/".
367    
368     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
369 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
370    
371 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
372 azarah 31 Fix symbols.in not added to dist.
373    
374 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
375 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
376     White space fixes.
377    
378 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
379 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
380 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
381     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
382     for glibc and other libc's that use this. Update libsandbox.c to use these
383     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
384     process unset it.
385    
386 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
387 ferringb 28 killed off _init and _fini in favor of
388     void __attribute__ ((constructor)) init_func and
389     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
390    
391 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
392     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
393     having the hick-ups.
394    
395 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
396     Makefile.am: Fixed compilation.
397    
398 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
399     Gutted the bugger so it stops checking for a c++ and fortran compiler.
400     Do *not* regenerate aclocal.m4 for making a release until a better
401     solution is created.
402    
403 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
404     Removal of more hardcoded paths.
405    
406 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
407     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
408    
409     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
410 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
411     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
412     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
413     To get to a point of testing, automake && autoconf; created requisite files w/
414     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
415     /lib and /usr/lib/portage/bin.
416    
417 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
418     closing out bug #70225, potential overflow of the sandbox_pids_file var.
419    
420     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
421     (think it was at least) allows intermixing of code and data segments. bug #70351
422     should be fixed by this.
423    
424     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
425     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
426    
427     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
428     Seth Robertson that tracked down all adjuct flags for read operations that
429     do not invoke a write operation.
430    
431     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
432     Another fix from jstubbs regarding a free() on a stack variable for the
433     environment -- tracking now prevents extraneous free()'s segfault.
434    
435     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
436     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
437     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
438     Also remove the errno = ESUCCESS settings as documentation points out that
439     a library isn't allowed to do that.
440    
441     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
442     file_security_check() function to check random potential exploits on files
443     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
444     the 'system-crippling' exploits (bug 21923) and catches a few other
445     potential problems.
446    
447     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
448     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
449    
450     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
451     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
452     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
453    
454     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
455     Fix permissions and group of pids file and logs. Permissions should be 0664
456     and group should be 'portage'. Bug #34260.
457    
458     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
459     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
460     to the real execve (in our execve wrapper). Seems that on some arches (sparc
461     among others) do not allow us to tamper with the readonly copy passed to
462     execve, so pass our own copy of the environment. Bug #42290.
463    
464     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
465     Changed tail to head and added a notice about duration of glibc check.
466    
467     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
468     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
469     as there isn't a guarentee that it is dynamic.
470    
471     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
472     If 'file' passed to before_syscall(const char *func, const char *file) is
473     invalid, we should set errno to ENOENT, and not EINVAL. This should
474     close bug #32238.
475    
476     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
477     Fix a bug that occurs mainly on 64bit arch, where the file passed to
478     the functions we wrap, is invalid, and then cause canonicalize to pass
479     garbage to before_syscall(), thanks to great detective work from
480     Andrea Luzzardi <al@sig11.org> (bug #29846).
481    
482     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
483     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
484    
485     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
486     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
487     only checked the destination patch, and not the source, so we could move
488     a protected file to a unprotected directory, and then delete/modify it.
489     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
490    
491     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
492     Added python2.3 to the predict section/variable.
493    
494     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
495     sandbox.h, sandbox_futils.c :
496     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
497     it is not set, it will revert to its old value.
498    
499     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
500     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
501     rather than failing with a violation, bug #29748.
502    
503     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
504     Fix canonicalize() to ignore calls with path = "".
505    
506     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
507     sandbox_futils.c, canonicalize.c :
508     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
509     call handled strings larger than PATH_MAX (bug #21766). It however does not
510     work the same on 2.4 kernels.
511    
512     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
513     do not need the system call. We use the default getcwd() function via a
514     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
515     means the current directory was removed, OR that the the system call for
516     getcwd failed (curious is that it do not fail and return NULL or set
517     errno, but rather just truncate the retured directory - usually from the
518     start), and if so, we use the generic getcwd() function (__egetcwd). Note
519     that we do not use the generic version all the time, as it calls lstat()
520     a great number of times, and performance degrade much.
521    
522     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
523     libsandbox.c :
524     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
525    
526     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
527     create-localdecls :
528     When checking path names of files accessed, we need to canonicalize it, else
529     it may be a symlink in a 'write allowed' directory pointing to a file in a
530     directory we should not have write access to.
531    
532     With something like coreutils-5.0, we have two problems:
533     1) One of the tests checks if getcwd() can return a path longer than
534     PATH_MAX. This test then tries to create a dir which even while
535     created local (mkdir("conftest2")), it ends up being resolved with
536     a name that is much larger than PATH_MAX. The problem now is that
537     canonicalize() have undefined behaviour when the path was too long
538     (returned wrongly truncated paths, etc), and pass the wrong path to
539     before_syscall() (causing the bogus sandbox violations).
540     2) The ecanonicalize() function we used, along with the canonicalize()
541     function did not support longer than PATH_MAX. This is partly a
542     cause for 1), but the error checking (rather lack of it) of calls
543     to erealpath() in canonicalize() was the prime reason for 1).
544    
545     As we do not use this canonicalized name to call the function, we resolve this
546     by fixing canonicalize() to do better error checking, and ecanonicalize() as
547     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
548     While they will resolve paths properly now, and can check if a write/read is
549     allowed, the functions called from the sandboxed environment will still work
550     as expected.
551    
552     This should resolve bug #21766.
553    
554     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
555     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
556     it (bug #16298).
557    
558     Problem is that for some reason locale fopen's locale.alias with mode "rm".
559    
560     -------------------------------------------------------
561     nosferatu root # grep fopen locale.log
562     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
563     nosferatu root #
564     --------------------------------------------------------
565    
566     I checked the source of locale, but it have fopen with mode 'r', so
567     not sure where the "rm" mode comes from. Anyhow, changed the check in
568     before_syscall_open_char() to also see mode "rm" as readonly.
569    
570     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
571    
572     Add glibc-2.3 support.
573    
574     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
575    
576     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
577     operations releated to preload, as well as only try to modify ld.so.preload
578     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
579     not using ld.so.preload. Fix to not write this instance of sandbox's pid
580     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
581    
582     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
583    
584     Changed the LD to CC for hppa.
585    
586     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
587    
588     Killed the previous changes I made.
589    
590     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
591    
592     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
593    
594     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
595    
596     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
597    
598     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
599    
600     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
601     for this fix.
602    
603     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
604    
605     sandbox_futils defined a dirname() function that was masking the same
606     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
607     '/usr/lib/portage/bi/'). Fixed function to return expected results and
608     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
609     11231.
610    
611     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
612    
613     Fix a segfault in libsandbox.c if canonicalize() was called with
614     first parameter = NULL.
615    
616     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
617    
618     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
619     cleanup() for this.
620    
621     Change cleanup() in sandbox.c not to exit with fail status if
622     the pidsfile is missing. We really should still display sandbox
623     violations if they occured.
624    
625     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
626    
627     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
628     the last sandbox running.
629    
630     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
631    
632     Major cleanups to mainly libsandbox.c again.
633    
634     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
635    
636     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
637     parties involved should please contact me so that we can fix it.
638    
639     Add opendir wrapper to libsandbox.c.
640    
641     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
642    
643     Do some more cleanups to ecanonicalize(), as it dropped filenames in
644     rare cases (after my symlink cleanups), and caused glibc to bork.
645     These fixes went into canonicalize.c.
646    
647     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
648    
649     Fix spawn_shell() and main() in sandbox.c to properly return fail
650     status.
651    
652     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
653    
654     The new canonicalize() function in libsandbox.c also resolved symlinks,
655     which caused on cleaning sandbox errors if the symlink pointed to a
656     file in the live root. Ripped out canonicalize() and realpath() from
657     glibc; removed the symlink stuff, and changed them to ecanonicalize()
658     and erealpath().
659    
660     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
661    
662     Ripped out all the wrappers, and implemented those of InstallWatch.
663     Losts of cleanups and bugfixes. Implement a execve that forces
664     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
665     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
666     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
667     parts; it now have an install target.
668    
669     Reformat the whole thing to look somewhat like the reworked sandbox.c
670     and new sandbox.h and sandbox_futils.c from:
671    
672     Brad House <brad@mainstreetsoftworks.com>.
673    
674     Additional Copyrights now due to the InstallWatch code:
675    
676     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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