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Revision 165 - (hide annotations) (download)
Mon Sep 12 06:44:52 2005 UTC (9 years, 1 month ago) by azarah
Original Path: trunk/ChangeLog
File size: 28786 byte(s)
Do not handle adding working directory to SANDBOX_WRITE, as portage does it itself.
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 165 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
6    
7     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
8     itself.
9    
10 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
11    
12     Also allow symlink() system call to operate on a symlink in a writable path
13     that points to non-writable path, bug #104711.
14    
15 azarah 160 * sandbox-1.2.12 (2005/08/05)
16    
17 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
18     sandbox.h:
19 azarah 156
20     Do not give an access violation if the access() system call do not have
21     write/read access - it does not actually modify, so we only need to return
22     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
23     bug #101433.
24    
25 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
26     and make the current directory the work directory. Also rename the variable
27     portage_tmp_dir to work_dir.
28    
29 azarah 158 Remove the tmp_dir variable - we do not need it.
30    
31 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
32    
33 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
34    
35     Still do normal log if debugging is requested.
36    
37 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
38     to only enable if equal to "1" or "yes".
39    
40 azarah 155 Add /dev/tts to write permit, bug #42809.
41    
42 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
43     sandbox_futils.c:
44    
45     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
46     in libsandbox .. bug #100309.
47    
48 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
49    
50     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
51    
52 azarah 149 * sandbox-1.2.11 (2005/07/14)
53    
54 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
55     Fix getcwd, bug #98419.
56    
57 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
58     libsandbox.c:
59 azarah 146 - Try to cleanup and make error handling/printing consistent.
60     - Remove old logs if present and conflicting with current.
61 azarah 147 - Fix compile error with previous change, and return rather then exit().
62 azarah 145
63 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
64     sandbox.h, sandbox_futils.c:
65     - Fix possible segfault in env init code.
66     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
67     write to /var/log/sandbox/, so in theory do not need all that.
68 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
69 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
70 azarah 142 - Remove unused includes and variables.
71 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
72     OUTSIDE_LIBSANDBOX is not defined.
73 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
74     printing's last line not honouring NOCOLOR.
75 azarah 138
76 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
77     libsandbox.c:
78     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
79     write to it.
80 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
81 azarah 136 - Add check_prefixes() with major cleanup on check_access().
82 azarah 137 - Cleanup init_env_entries() and check_prefixes().
83 azarah 134
84 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
85     sandbox_futils.c, libsandbox.c:
86     Remove unused 'pids file' code.
87    
88 azarah 128 * sandbox-1.2.10 (2005/07/03)
89    
90 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
91     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
92    
93 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
94     General cleanups:
95     - Remove fooling around with exit codes - we error out on presence of a log
96     anyhow.
97 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
98     appropriate there.
99 azarah 123
100 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
101     Cleanup the fail_nametoolong stuff a bit more.
102    
103 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
104 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
105    
106     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
107 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
108     in check_syscall(). Should speed things up a bit (at least for the getcwd()
109     and long path name test it goes down to under a second, and not 10+ seconds
110     like before). Also warn if we skip checking due to the canonicalized path
111     being too long.
112    
113     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
114 azarah 118 More comment/readability cleanups.
115    
116 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
117     sandbox_futils.c, libsandbox.c:
118     Some strncpy/strncat and other cleanups.
119    
120 azarah 115 * sandbox-1.2.9 (2005/06/09)
121    
122 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
123     Move symlink hack down a bit to try and minimize on the amount of lstat()
124     calls we do.
125    
126 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
127     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
128    
129 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
130     Add wrapper for access() function, bug #85413.
131    
132 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
133     Use generic getcwd() implementation from uclibc - should be more portable
134     and looks a bit cleaner.
135    
136 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
137     Make sure our true_* pointers are initialized to NULL, and that we check for
138     all references that they are valid.
139    
140 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
141     Be default we will fail if the path name we try to canonicalize is too long.
142     This however could cause issues with some things (bug #94630 and #21766), so
143     if fail_nametoolong == 0, canonicalize() will return a null length string and
144     do not fail.
145    
146 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
147     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
148     make sure we re-export the new TMPDIR environment variable.
149    
150 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
151     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
152     by Marcus D. Hanwell <cryos@gentoo.org>.
153    
154 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
155     Add /dev/console to write list, bug #38588.
156    
157 azarah 102 * sandbox-1.2.8 (2005/05/13)
158    
159 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
160 azarah 101 sandbox.h, sandbox_futils.c:
161     General cleanups.
162    
163     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
164 azarah 100 sandbox.h:
165     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
166    
167     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
168 azarah 99 sandbox.h, sandbox_futils.c:
169     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
170     to use TMPDIR if present in environment.
171    
172 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
173     Remove sandbox_log_file from main() as its no longer used.
174    
175 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
176     sandbox_futils.c:
177     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
178     if already exported when sandbox started). Fix get_sandbox_log() and new
179     get_sandbox_debug_log() to not use already exported environment variables if
180     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
181     SB_PATH_MAX fixes.
182    
183 azarah 94 * sandbox-1.2.7 (2005/05/12)
184    
185 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
186     sandbox_futils.c:
187     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
188    
189 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
190     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
191     with '(null)' in it if we did not call sandbox with absolute path.
192    
193 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
194 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
195     for the child.
196    
197     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
198 azarah 90 Remove global preload_adaptable as it is no longer used.
199    
200     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
201 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
202     to try and avoid issues like bug #91541 that causes sandbox to crash if
203     we set LD_PRELOAD sandbox side already.
204    
205 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
206 azarah 88 Move print_sandbox_log() up to make things neater.
207    
208     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
209 azarah 87 Remove load_preload_libs(), as its not used anymore.
210    
211 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
212 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
213    
214     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
215 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
216    
217     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
218 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
219    
220 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
221     Fix typo in code that checks if we got valid group information, causing a
222     segmentation fault, bug #91637.
223    
224 azarah 79 * sandbox-1.2.6 (2005/05/10)
225    
226 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
227     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
228     for some odd reason, bug #91541.
229    
230 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
231     Fix typo (sizeof -> strlen).
232    
233 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
234     rewrote the sbcontext caching code so it accounts for env changes since lib
235     initialization.
236    
237 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
238     We create libctest.c via configure, so no need to keep it around. Do some
239     cleanup related to libctest.c and libctest during configure.
240    
241 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
242     Add rename support of symlinks pointing to protected files/directories.
243    
244 azarah 72 * sandbox-1.2.5 (2005/05/04)
245    
246 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
247     sandbox.bashrc:
248     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
249     already set, init of the env vars fails for some reason, so do this later on,
250     and do not warn (bug #91431).
251    
252 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
253     sandbox.bashrc:
254     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
255    
256 azarah 68 * sandbox-1.2.4 (2005/05/03)
257    
258 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
259     Do not init the env entries with each call, as it creates too many calls to
260 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
261 azarah 66
262 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
263     Add /dev/pty to default write list. Noticed by Morfic.
264    
265 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
266     sandbox.h:
267     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
268     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
269    
270 azarah 59 * sandbox-1.2.3 (2005/04/29)
271    
272 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
273     Do not check for (*&#$(* CXX or F77.
274    
275 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
276     Do not append '/' to pathname in filter_path() if it already ends with it.
277    
278 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
279     With az's help, clean up autotools to work with cross-compiling.
280    
281 azarah 59 * sandbox-1.2.2 (2005/04/28)
282 azarah 48
283 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
284     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
285     have issues; bug #90592.
286    
287 azarah 59 * sandbox-1.2.1 (2005/04/23)
288 azarah 44
289 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
290     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
291     Make sure all functions used in libsandbox.c is declared static. Define
292     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
293     linking with its object. Hopefully this will fix bug #90153.
294    
295 azarah 59 * sandbox-1.2 (2005/04/23)
296 azarah 46
297 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
298     Allow lchown a symlink in write-allowed path pointing to write-denied
299     target.
300    
301 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
302     Also show resolved symlink names in the log.
303    
304 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
305     Seems -nostdlib was the problem with the constructor/destructor - remove it
306     from Makefile.am, and change the constructor/destructor names again.
307    
308 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
309     Also rename the _init() and _fini() declarations.
310    
311 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
312     Fixup the constructor/destructor function names again (they should be _init()
313     and _fini() it seems, and not being called caused sandbox_lib_path to be
314     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
315     Add both the path in given SANDBOX_x variable, as well as its symlink
316     resolved path in init_env_entries(). Modify filter_path() to be able to
317     resolve paths without resolving symlinks, as well as to be able to resolve
318     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
319     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
320     for bug #31019 cause access violations if we try to remove a symlink that is
321     not in protected path, but points to a protected path. Fix a memory leak in
322     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
323     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
324     (pid_string was uninitialized). General syntax cleanups.
325    
326 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
327     infamous "pids file is not a regular file" w/out newline bug.
328    
329 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
330     Correct libc_version path detection, since it was screwing up if libdir !=
331     "/lib/".
332    
333     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
334 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
335    
336 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
337 azarah 31 Fix symbols.in not added to dist.
338    
339 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
340 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
341     White space fixes.
342    
343 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
344 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
345 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
346     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
347     for glibc and other libc's that use this. Update libsandbox.c to use these
348     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
349     process unset it.
350    
351 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
352 ferringb 28 killed off _init and _fini in favor of
353     void __attribute__ ((constructor)) init_func and
354     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
355    
356 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
357     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
358     having the hick-ups.
359    
360 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
361     Makefile.am: Fixed compilation.
362    
363 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
364     Gutted the bugger so it stops checking for a c++ and fortran compiler.
365     Do *not* regenerate aclocal.m4 for making a release until a better
366     solution is created.
367    
368 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
369     Removal of more hardcoded paths.
370    
371 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
372     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
373    
374     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
375 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
376     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
377     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
378     To get to a point of testing, automake && autoconf; created requisite files w/
379     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
380     /lib and /usr/lib/portage/bin.
381    
382 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
383     closing out bug #70225, potential overflow of the sandbox_pids_file var.
384    
385     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
386     (think it was at least) allows intermixing of code and data segments. bug #70351
387     should be fixed by this.
388    
389     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
390     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
391    
392     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
393     Seth Robertson that tracked down all adjuct flags for read operations that
394     do not invoke a write operation.
395    
396     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
397     Another fix from jstubbs regarding a free() on a stack variable for the
398     environment -- tracking now prevents extraneous free()'s segfault.
399    
400     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
401     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
402     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
403     Also remove the errno = ESUCCESS settings as documentation points out that
404     a library isn't allowed to do that.
405    
406     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
407     file_security_check() function to check random potential exploits on files
408     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
409     the 'system-crippling' exploits (bug 21923) and catches a few other
410     potential problems.
411    
412     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
413     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
414    
415     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
416     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
417     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
418    
419     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
420     Fix permissions and group of pids file and logs. Permissions should be 0664
421     and group should be 'portage'. Bug #34260.
422    
423     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
424     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
425     to the real execve (in our execve wrapper). Seems that on some arches (sparc
426     among others) do not allow us to tamper with the readonly copy passed to
427     execve, so pass our own copy of the environment. Bug #42290.
428    
429     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
430     Changed tail to head and added a notice about duration of glibc check.
431    
432     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
433     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
434     as there isn't a guarentee that it is dynamic.
435    
436     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
437     If 'file' passed to before_syscall(const char *func, const char *file) is
438     invalid, we should set errno to ENOENT, and not EINVAL. This should
439     close bug #32238.
440    
441     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
442     Fix a bug that occurs mainly on 64bit arch, where the file passed to
443     the functions we wrap, is invalid, and then cause canonicalize to pass
444     garbage to before_syscall(), thanks to great detective work from
445     Andrea Luzzardi <al@sig11.org> (bug #29846).
446    
447     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
448     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
449    
450     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
451     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
452     only checked the destination patch, and not the source, so we could move
453     a protected file to a unprotected directory, and then delete/modify it.
454     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
455    
456     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
457     Added python2.3 to the predict section/variable.
458    
459     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
460     sandbox.h, sandbox_futils.c :
461     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
462     it is not set, it will revert to its old value.
463    
464     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
465     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
466     rather than failing with a violation, bug #29748.
467    
468     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
469     Fix canonicalize() to ignore calls with path = "".
470    
471     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
472     sandbox_futils.c, canonicalize.c :
473     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
474     call handled strings larger than PATH_MAX (bug #21766). It however does not
475     work the same on 2.4 kernels.
476    
477     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
478     do not need the system call. We use the default getcwd() function via a
479     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
480     means the current directory was removed, OR that the the system call for
481     getcwd failed (curious is that it do not fail and return NULL or set
482     errno, but rather just truncate the retured directory - usually from the
483     start), and if so, we use the generic getcwd() function (__egetcwd). Note
484     that we do not use the generic version all the time, as it calls lstat()
485     a great number of times, and performance degrade much.
486    
487     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
488     libsandbox.c :
489     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
490    
491     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
492     create-localdecls :
493     When checking path names of files accessed, we need to canonicalize it, else
494     it may be a symlink in a 'write allowed' directory pointing to a file in a
495     directory we should not have write access to.
496    
497     With something like coreutils-5.0, we have two problems:
498     1) One of the tests checks if getcwd() can return a path longer than
499     PATH_MAX. This test then tries to create a dir which even while
500     created local (mkdir("conftest2")), it ends up being resolved with
501     a name that is much larger than PATH_MAX. The problem now is that
502     canonicalize() have undefined behaviour when the path was too long
503     (returned wrongly truncated paths, etc), and pass the wrong path to
504     before_syscall() (causing the bogus sandbox violations).
505     2) The ecanonicalize() function we used, along with the canonicalize()
506     function did not support longer than PATH_MAX. This is partly a
507     cause for 1), but the error checking (rather lack of it) of calls
508     to erealpath() in canonicalize() was the prime reason for 1).
509    
510     As we do not use this canonicalized name to call the function, we resolve this
511     by fixing canonicalize() to do better error checking, and ecanonicalize() as
512     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
513     While they will resolve paths properly now, and can check if a write/read is
514     allowed, the functions called from the sandboxed environment will still work
515     as expected.
516    
517     This should resolve bug #21766.
518    
519     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
520     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
521     it (bug #16298).
522    
523     Problem is that for some reason locale fopen's locale.alias with mode "rm".
524    
525     -------------------------------------------------------
526     nosferatu root # grep fopen locale.log
527     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
528     nosferatu root #
529     --------------------------------------------------------
530    
531     I checked the source of locale, but it have fopen with mode 'r', so
532     not sure where the "rm" mode comes from. Anyhow, changed the check in
533     before_syscall_open_char() to also see mode "rm" as readonly.
534    
535     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
536    
537     Add glibc-2.3 support.
538    
539     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
540    
541     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
542     operations releated to preload, as well as only try to modify ld.so.preload
543     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
544     not using ld.so.preload. Fix to not write this instance of sandbox's pid
545     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
546    
547     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
548    
549     Changed the LD to CC for hppa.
550    
551     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
552    
553     Killed the previous changes I made.
554    
555     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
556    
557     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
558    
559     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
560    
561     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
562    
563     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
564    
565     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
566     for this fix.
567    
568     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
569    
570     sandbox_futils defined a dirname() function that was masking the same
571     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
572     '/usr/lib/portage/bi/'). Fixed function to return expected results and
573     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
574     11231.
575    
576     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
577    
578     Fix a segfault in libsandbox.c if canonicalize() was called with
579     first parameter = NULL.
580    
581     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
582    
583     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
584     cleanup() for this.
585    
586     Change cleanup() in sandbox.c not to exit with fail status if
587     the pidsfile is missing. We really should still display sandbox
588     violations if they occured.
589    
590     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
591    
592     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
593     the last sandbox running.
594    
595     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
596    
597     Major cleanups to mainly libsandbox.c again.
598    
599     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
600    
601     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
602     parties involved should please contact me so that we can fix it.
603    
604     Add opendir wrapper to libsandbox.c.
605    
606     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
607    
608     Do some more cleanups to ecanonicalize(), as it dropped filenames in
609     rare cases (after my symlink cleanups), and caused glibc to bork.
610     These fixes went into canonicalize.c.
611    
612     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
613    
614     Fix spawn_shell() and main() in sandbox.c to properly return fail
615     status.
616    
617     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
618    
619     The new canonicalize() function in libsandbox.c also resolved symlinks,
620     which caused on cleaning sandbox errors if the symlink pointed to a
621     file in the live root. Ripped out canonicalize() and realpath() from
622     glibc; removed the symlink stuff, and changed them to ecanonicalize()
623     and erealpath().
624    
625     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
626    
627     Ripped out all the wrappers, and implemented those of InstallWatch.
628     Losts of cleanups and bugfixes. Implement a execve that forces
629     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
630     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
631     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
632     parts; it now have an install target.
633    
634     Reformat the whole thing to look somewhat like the reworked sandbox.c
635     and new sandbox.h and sandbox_futils.c from:
636    
637     Brad House <brad@mainstreetsoftworks.com>.
638    
639     Additional Copyrights now due to the InstallWatch code:
640    
641     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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