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Revision 151 - (hide annotations) (download)
Fri Jul 22 08:13:25 2005 UTC (9 years ago) by azarah
File size: 27278 byte(s)
Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
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 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
6    
7     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
8    
9 azarah 149 * sandbox-1.2.11 (2005/07/14)
10    
11 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
12     Fix getcwd, bug #98419.
13    
14 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
15     libsandbox.c:
16 azarah 146 - Try to cleanup and make error handling/printing consistent.
17     - Remove old logs if present and conflicting with current.
18 azarah 147 - Fix compile error with previous change, and return rather then exit().
19 azarah 145
20 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
21     sandbox.h, sandbox_futils.c:
22     - Fix possible segfault in env init code.
23     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
24     write to /var/log/sandbox/, so in theory do not need all that.
25 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
26 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
27 azarah 142 - Remove unused includes and variables.
28 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
29     OUTSIDE_LIBSANDBOX is not defined.
30 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
31     printing's last line not honouring NOCOLOR.
32 azarah 138
33 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
34     libsandbox.c:
35     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
36     write to it.
37 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
38 azarah 136 - Add check_prefixes() with major cleanup on check_access().
39 azarah 137 - Cleanup init_env_entries() and check_prefixes().
40 azarah 134
41 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
42     sandbox_futils.c, libsandbox.c:
43     Remove unused 'pids file' code.
44    
45 azarah 128 * sandbox-1.2.10 (2005/07/03)
46    
47 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
48     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
49    
50 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
51     General cleanups:
52     - Remove fooling around with exit codes - we error out on presence of a log
53     anyhow.
54 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
55     appropriate there.
56 azarah 123
57 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58     Cleanup the fail_nametoolong stuff a bit more.
59    
60 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
61 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
62    
63     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
64 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
65     in check_syscall(). Should speed things up a bit (at least for the getcwd()
66     and long path name test it goes down to under a second, and not 10+ seconds
67     like before). Also warn if we skip checking due to the canonicalized path
68     being too long.
69    
70     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
71 azarah 118 More comment/readability cleanups.
72    
73 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
74     sandbox_futils.c, libsandbox.c:
75     Some strncpy/strncat and other cleanups.
76    
77 azarah 115 * sandbox-1.2.9 (2005/06/09)
78    
79 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
80     Move symlink hack down a bit to try and minimize on the amount of lstat()
81     calls we do.
82    
83 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
84     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
85    
86 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
87     Add wrapper for access() function, bug #85413.
88    
89 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
90     Use generic getcwd() implementation from uclibc - should be more portable
91     and looks a bit cleaner.
92    
93 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
94     Make sure our true_* pointers are initialized to NULL, and that we check for
95     all references that they are valid.
96    
97 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
98     Be default we will fail if the path name we try to canonicalize is too long.
99     This however could cause issues with some things (bug #94630 and #21766), so
100     if fail_nametoolong == 0, canonicalize() will return a null length string and
101     do not fail.
102    
103 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
104     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
105     make sure we re-export the new TMPDIR environment variable.
106    
107 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
108     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
109     by Marcus D. Hanwell <cryos@gentoo.org>.
110    
111 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
112     Add /dev/console to write list, bug #38588.
113    
114 azarah 102 * sandbox-1.2.8 (2005/05/13)
115    
116 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
117 azarah 101 sandbox.h, sandbox_futils.c:
118     General cleanups.
119    
120     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
121 azarah 100 sandbox.h:
122     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
123    
124     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
125 azarah 99 sandbox.h, sandbox_futils.c:
126     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
127     to use TMPDIR if present in environment.
128    
129 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
130     Remove sandbox_log_file from main() as its no longer used.
131    
132 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
133     sandbox_futils.c:
134     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
135     if already exported when sandbox started). Fix get_sandbox_log() and new
136     get_sandbox_debug_log() to not use already exported environment variables if
137     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
138     SB_PATH_MAX fixes.
139    
140 azarah 94 * sandbox-1.2.7 (2005/05/12)
141    
142 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
143     sandbox_futils.c:
144     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
145    
146 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
147     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
148     with '(null)' in it if we did not call sandbox with absolute path.
149    
150 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
151 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
152     for the child.
153    
154     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
155 azarah 90 Remove global preload_adaptable as it is no longer used.
156    
157     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
158 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
159     to try and avoid issues like bug #91541 that causes sandbox to crash if
160     we set LD_PRELOAD sandbox side already.
161    
162 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
163 azarah 88 Move print_sandbox_log() up to make things neater.
164    
165     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
166 azarah 87 Remove load_preload_libs(), as its not used anymore.
167    
168 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
169 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
170    
171     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
172 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
173    
174     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
175 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
176    
177 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
178     Fix typo in code that checks if we got valid group information, causing a
179     segmentation fault, bug #91637.
180    
181 azarah 79 * sandbox-1.2.6 (2005/05/10)
182    
183 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
184     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
185     for some odd reason, bug #91541.
186    
187 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
188     Fix typo (sizeof -> strlen).
189    
190 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
191     rewrote the sbcontext caching code so it accounts for env changes since lib
192     initialization.
193    
194 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
195     We create libctest.c via configure, so no need to keep it around. Do some
196     cleanup related to libctest.c and libctest during configure.
197    
198 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
199     Add rename support of symlinks pointing to protected files/directories.
200    
201 azarah 72 * sandbox-1.2.5 (2005/05/04)
202    
203 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
204     sandbox.bashrc:
205     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
206     already set, init of the env vars fails for some reason, so do this later on,
207     and do not warn (bug #91431).
208    
209 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
210     sandbox.bashrc:
211     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
212    
213 azarah 68 * sandbox-1.2.4 (2005/05/03)
214    
215 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
216     Do not init the env entries with each call, as it creates too many calls to
217 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
218 azarah 66
219 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
220     Add /dev/pty to default write list. Noticed by Morfic.
221    
222 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
223     sandbox.h:
224     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
225     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
226    
227 azarah 59 * sandbox-1.2.3 (2005/04/29)
228    
229 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
230     Do not check for (*&#$(* CXX or F77.
231    
232 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
233     Do not append '/' to pathname in filter_path() if it already ends with it.
234    
235 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
236     With az's help, clean up autotools to work with cross-compiling.
237    
238 azarah 59 * sandbox-1.2.2 (2005/04/28)
239 azarah 48
240 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
241     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
242     have issues; bug #90592.
243    
244 azarah 59 * sandbox-1.2.1 (2005/04/23)
245 azarah 44
246 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
247     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
248     Make sure all functions used in libsandbox.c is declared static. Define
249     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
250     linking with its object. Hopefully this will fix bug #90153.
251    
252 azarah 59 * sandbox-1.2 (2005/04/23)
253 azarah 46
254 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
255     Allow lchown a symlink in write-allowed path pointing to write-denied
256     target.
257    
258 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
259     Also show resolved symlink names in the log.
260    
261 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
262     Seems -nostdlib was the problem with the constructor/destructor - remove it
263     from Makefile.am, and change the constructor/destructor names again.
264    
265 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
266     Also rename the _init() and _fini() declarations.
267    
268 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
269     Fixup the constructor/destructor function names again (they should be _init()
270     and _fini() it seems, and not being called caused sandbox_lib_path to be
271     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
272     Add both the path in given SANDBOX_x variable, as well as its symlink
273     resolved path in init_env_entries(). Modify filter_path() to be able to
274     resolve paths without resolving symlinks, as well as to be able to resolve
275     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
276     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
277     for bug #31019 cause access violations if we try to remove a symlink that is
278     not in protected path, but points to a protected path. Fix a memory leak in
279     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
280     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
281     (pid_string was uninitialized). General syntax cleanups.
282    
283 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
284     infamous "pids file is not a regular file" w/out newline bug.
285    
286 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
287     Correct libc_version path detection, since it was screwing up if libdir !=
288     "/lib/".
289    
290     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
291 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
292    
293 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
294 azarah 31 Fix symbols.in not added to dist.
295    
296 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
297 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
298     White space fixes.
299    
300 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
301 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
302 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
303     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
304     for glibc and other libc's that use this. Update libsandbox.c to use these
305     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
306     process unset it.
307    
308 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
309 ferringb 28 killed off _init and _fini in favor of
310     void __attribute__ ((constructor)) init_func and
311     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
312    
313 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
314     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
315     having the hick-ups.
316    
317 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
318     Makefile.am: Fixed compilation.
319    
320 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
321     Gutted the bugger so it stops checking for a c++ and fortran compiler.
322     Do *not* regenerate aclocal.m4 for making a release until a better
323     solution is created.
324    
325 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
326     Removal of more hardcoded paths.
327    
328 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
329     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
330    
331     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
332 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
333     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
334     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
335     To get to a point of testing, automake && autoconf; created requisite files w/
336     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
337     /lib and /usr/lib/portage/bin.
338    
339 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
340     closing out bug #70225, potential overflow of the sandbox_pids_file var.
341    
342     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
343     (think it was at least) allows intermixing of code and data segments. bug #70351
344     should be fixed by this.
345    
346     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
347     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
348    
349     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
350     Seth Robertson that tracked down all adjuct flags for read operations that
351     do not invoke a write operation.
352    
353     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
354     Another fix from jstubbs regarding a free() on a stack variable for the
355     environment -- tracking now prevents extraneous free()'s segfault.
356    
357     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
358     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
359     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
360     Also remove the errno = ESUCCESS settings as documentation points out that
361     a library isn't allowed to do that.
362    
363     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
364     file_security_check() function to check random potential exploits on files
365     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
366     the 'system-crippling' exploits (bug 21923) and catches a few other
367     potential problems.
368    
369     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
370     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
371    
372     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
373     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
374     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
375    
376     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
377     Fix permissions and group of pids file and logs. Permissions should be 0664
378     and group should be 'portage'. Bug #34260.
379    
380     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
381     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
382     to the real execve (in our execve wrapper). Seems that on some arches (sparc
383     among others) do not allow us to tamper with the readonly copy passed to
384     execve, so pass our own copy of the environment. Bug #42290.
385    
386     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
387     Changed tail to head and added a notice about duration of glibc check.
388    
389     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
390     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
391     as there isn't a guarentee that it is dynamic.
392    
393     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
394     If 'file' passed to before_syscall(const char *func, const char *file) is
395     invalid, we should set errno to ENOENT, and not EINVAL. This should
396     close bug #32238.
397    
398     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
399     Fix a bug that occurs mainly on 64bit arch, where the file passed to
400     the functions we wrap, is invalid, and then cause canonicalize to pass
401     garbage to before_syscall(), thanks to great detective work from
402     Andrea Luzzardi <al@sig11.org> (bug #29846).
403    
404     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
405     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
406    
407     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
408     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
409     only checked the destination patch, and not the source, so we could move
410     a protected file to a unprotected directory, and then delete/modify it.
411     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
412    
413     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
414     Added python2.3 to the predict section/variable.
415    
416     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
417     sandbox.h, sandbox_futils.c :
418     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
419     it is not set, it will revert to its old value.
420    
421     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
422     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
423     rather than failing with a violation, bug #29748.
424    
425     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
426     Fix canonicalize() to ignore calls with path = "".
427    
428     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
429     sandbox_futils.c, canonicalize.c :
430     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
431     call handled strings larger than PATH_MAX (bug #21766). It however does not
432     work the same on 2.4 kernels.
433    
434     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
435     do not need the system call. We use the default getcwd() function via a
436     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
437     means the current directory was removed, OR that the the system call for
438     getcwd failed (curious is that it do not fail and return NULL or set
439     errno, but rather just truncate the retured directory - usually from the
440     start), and if so, we use the generic getcwd() function (__egetcwd). Note
441     that we do not use the generic version all the time, as it calls lstat()
442     a great number of times, and performance degrade much.
443    
444     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
445     libsandbox.c :
446     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
447    
448     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
449     create-localdecls :
450     When checking path names of files accessed, we need to canonicalize it, else
451     it may be a symlink in a 'write allowed' directory pointing to a file in a
452     directory we should not have write access to.
453    
454     With something like coreutils-5.0, we have two problems:
455     1) One of the tests checks if getcwd() can return a path longer than
456     PATH_MAX. This test then tries to create a dir which even while
457     created local (mkdir("conftest2")), it ends up being resolved with
458     a name that is much larger than PATH_MAX. The problem now is that
459     canonicalize() have undefined behaviour when the path was too long
460     (returned wrongly truncated paths, etc), and pass the wrong path to
461     before_syscall() (causing the bogus sandbox violations).
462     2) The ecanonicalize() function we used, along with the canonicalize()
463     function did not support longer than PATH_MAX. This is partly a
464     cause for 1), but the error checking (rather lack of it) of calls
465     to erealpath() in canonicalize() was the prime reason for 1).
466    
467     As we do not use this canonicalized name to call the function, we resolve this
468     by fixing canonicalize() to do better error checking, and ecanonicalize() as
469     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
470     While they will resolve paths properly now, and can check if a write/read is
471     allowed, the functions called from the sandboxed environment will still work
472     as expected.
473    
474     This should resolve bug #21766.
475    
476     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
477     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
478     it (bug #16298).
479    
480     Problem is that for some reason locale fopen's locale.alias with mode "rm".
481    
482     -------------------------------------------------------
483     nosferatu root # grep fopen locale.log
484     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
485     nosferatu root #
486     --------------------------------------------------------
487    
488     I checked the source of locale, but it have fopen with mode 'r', so
489     not sure where the "rm" mode comes from. Anyhow, changed the check in
490     before_syscall_open_char() to also see mode "rm" as readonly.
491    
492     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
493    
494     Add glibc-2.3 support.
495    
496     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
497    
498     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
499     operations releated to preload, as well as only try to modify ld.so.preload
500     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
501     not using ld.so.preload. Fix to not write this instance of sandbox's pid
502     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
503    
504     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
505    
506     Changed the LD to CC for hppa.
507    
508     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
509    
510     Killed the previous changes I made.
511    
512     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
513    
514     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
515    
516     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
517    
518     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
519    
520     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
521    
522     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
523     for this fix.
524    
525     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
526    
527     sandbox_futils defined a dirname() function that was masking the same
528     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
529     '/usr/lib/portage/bi/'). Fixed function to return expected results and
530     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
531     11231.
532    
533     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
534    
535     Fix a segfault in libsandbox.c if canonicalize() was called with
536     first parameter = NULL.
537    
538     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
539    
540     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
541     cleanup() for this.
542    
543     Change cleanup() in sandbox.c not to exit with fail status if
544     the pidsfile is missing. We really should still display sandbox
545     violations if they occured.
546    
547     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
548    
549     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
550     the last sandbox running.
551    
552     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
553    
554     Major cleanups to mainly libsandbox.c again.
555    
556     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
557    
558     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
559     parties involved should please contact me so that we can fix it.
560    
561     Add opendir wrapper to libsandbox.c.
562    
563     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
564    
565     Do some more cleanups to ecanonicalize(), as it dropped filenames in
566     rare cases (after my symlink cleanups), and caused glibc to bork.
567     These fixes went into canonicalize.c.
568    
569     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
570    
571     Fix spawn_shell() and main() in sandbox.c to properly return fail
572     status.
573    
574     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
575    
576     The new canonicalize() function in libsandbox.c also resolved symlinks,
577     which caused on cleaning sandbox errors if the symlink pointed to a
578     file in the live root. Ripped out canonicalize() and realpath() from
579     glibc; removed the symlink stuff, and changed them to ecanonicalize()
580     and erealpath().
581    
582     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
583    
584     Ripped out all the wrappers, and implemented those of InstallWatch.
585     Losts of cleanups and bugfixes. Implement a execve that forces
586     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
587     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
588     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
589     parts; it now have an install target.
590    
591     Reformat the whole thing to look somewhat like the reworked sandbox.c
592     and new sandbox.h and sandbox_futils.c from:
593    
594     Brad House <brad@mainstreetsoftworks.com>.
595    
596     Additional Copyrights now due to the InstallWatch code:
597    
598     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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