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Revision 148 - (hide annotations) (download)
Thu Jul 14 11:06:38 2005 UTC (8 years, 9 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 27110 byte(s)
Fix getcwd, bug #98419.
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 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
6     Fix getcwd, bug #98419.
7    
8 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
9     libsandbox.c:
10 azarah 146 - Try to cleanup and make error handling/printing consistent.
11     - Remove old logs if present and conflicting with current.
12 azarah 147 - Fix compile error with previous change, and return rather then exit().
13 azarah 145
14 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
15     sandbox.h, sandbox_futils.c:
16     - Fix possible segfault in env init code.
17     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
18     write to /var/log/sandbox/, so in theory do not need all that.
19 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
20 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
21 azarah 142 - Remove unused includes and variables.
22 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
23     OUTSIDE_LIBSANDBOX is not defined.
24 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
25     printing's last line not honouring NOCOLOR.
26 azarah 138
27 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
28     libsandbox.c:
29     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
30     write to it.
31 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
32 azarah 136 - Add check_prefixes() with major cleanup on check_access().
33 azarah 137 - Cleanup init_env_entries() and check_prefixes().
34 azarah 134
35 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
36     sandbox_futils.c, libsandbox.c:
37     Remove unused 'pids file' code.
38    
39 azarah 128 * sandbox-1.2.10 (2005/07/03)
40    
41 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
42     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
43    
44 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
45     General cleanups:
46     - Remove fooling around with exit codes - we error out on presence of a log
47     anyhow.
48 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
49     appropriate there.
50 azarah 123
51 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52     Cleanup the fail_nametoolong stuff a bit more.
53    
54 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
56    
57     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
59     in check_syscall(). Should speed things up a bit (at least for the getcwd()
60     and long path name test it goes down to under a second, and not 10+ seconds
61     like before). Also warn if we skip checking due to the canonicalized path
62     being too long.
63    
64     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
65 azarah 118 More comment/readability cleanups.
66    
67 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
68     sandbox_futils.c, libsandbox.c:
69     Some strncpy/strncat and other cleanups.
70    
71 azarah 115 * sandbox-1.2.9 (2005/06/09)
72    
73 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
74     Move symlink hack down a bit to try and minimize on the amount of lstat()
75     calls we do.
76    
77 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
78     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
79    
80 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
81     Add wrapper for access() function, bug #85413.
82    
83 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
84     Use generic getcwd() implementation from uclibc - should be more portable
85     and looks a bit cleaner.
86    
87 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
88     Make sure our true_* pointers are initialized to NULL, and that we check for
89     all references that they are valid.
90    
91 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
92     Be default we will fail if the path name we try to canonicalize is too long.
93     This however could cause issues with some things (bug #94630 and #21766), so
94     if fail_nametoolong == 0, canonicalize() will return a null length string and
95     do not fail.
96    
97 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
98     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
99     make sure we re-export the new TMPDIR environment variable.
100    
101 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
102     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
103     by Marcus D. Hanwell <cryos@gentoo.org>.
104    
105 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
106     Add /dev/console to write list, bug #38588.
107    
108 azarah 102 * sandbox-1.2.8 (2005/05/13)
109    
110 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
111 azarah 101 sandbox.h, sandbox_futils.c:
112     General cleanups.
113    
114     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
115 azarah 100 sandbox.h:
116     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
117    
118     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
119 azarah 99 sandbox.h, sandbox_futils.c:
120     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
121     to use TMPDIR if present in environment.
122    
123 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
124     Remove sandbox_log_file from main() as its no longer used.
125    
126 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
127     sandbox_futils.c:
128     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
129     if already exported when sandbox started). Fix get_sandbox_log() and new
130     get_sandbox_debug_log() to not use already exported environment variables if
131     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
132     SB_PATH_MAX fixes.
133    
134 azarah 94 * sandbox-1.2.7 (2005/05/12)
135    
136 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
137     sandbox_futils.c:
138     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
139    
140 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
141     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
142     with '(null)' in it if we did not call sandbox with absolute path.
143    
144 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
145 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
146     for the child.
147    
148     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
149 azarah 90 Remove global preload_adaptable as it is no longer used.
150    
151     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
152 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
153     to try and avoid issues like bug #91541 that causes sandbox to crash if
154     we set LD_PRELOAD sandbox side already.
155    
156 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
157 azarah 88 Move print_sandbox_log() up to make things neater.
158    
159     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
160 azarah 87 Remove load_preload_libs(), as its not used anymore.
161    
162 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
163 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
164    
165     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
166 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
167    
168     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
169 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
170    
171 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
172     Fix typo in code that checks if we got valid group information, causing a
173     segmentation fault, bug #91637.
174    
175 azarah 79 * sandbox-1.2.6 (2005/05/10)
176    
177 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
178     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
179     for some odd reason, bug #91541.
180    
181 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
182     Fix typo (sizeof -> strlen).
183    
184 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
185     rewrote the sbcontext caching code so it accounts for env changes since lib
186     initialization.
187    
188 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
189     We create libctest.c via configure, so no need to keep it around. Do some
190     cleanup related to libctest.c and libctest during configure.
191    
192 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
193     Add rename support of symlinks pointing to protected files/directories.
194    
195 azarah 72 * sandbox-1.2.5 (2005/05/04)
196    
197 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
198     sandbox.bashrc:
199     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
200     already set, init of the env vars fails for some reason, so do this later on,
201     and do not warn (bug #91431).
202    
203 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
204     sandbox.bashrc:
205     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
206    
207 azarah 68 * sandbox-1.2.4 (2005/05/03)
208    
209 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
210     Do not init the env entries with each call, as it creates too many calls to
211 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
212 azarah 66
213 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
214     Add /dev/pty to default write list. Noticed by Morfic.
215    
216 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
217     sandbox.h:
218     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
219     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
220    
221 azarah 59 * sandbox-1.2.3 (2005/04/29)
222    
223 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
224     Do not check for (*&#$(* CXX or F77.
225    
226 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
227     Do not append '/' to pathname in filter_path() if it already ends with it.
228    
229 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
230     With az's help, clean up autotools to work with cross-compiling.
231    
232 azarah 59 * sandbox-1.2.2 (2005/04/28)
233 azarah 48
234 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
235     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
236     have issues; bug #90592.
237    
238 azarah 59 * sandbox-1.2.1 (2005/04/23)
239 azarah 44
240 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
241     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
242     Make sure all functions used in libsandbox.c is declared static. Define
243     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
244     linking with its object. Hopefully this will fix bug #90153.
245    
246 azarah 59 * sandbox-1.2 (2005/04/23)
247 azarah 46
248 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
249     Allow lchown a symlink in write-allowed path pointing to write-denied
250     target.
251    
252 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
253     Also show resolved symlink names in the log.
254    
255 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
256     Seems -nostdlib was the problem with the constructor/destructor - remove it
257     from Makefile.am, and change the constructor/destructor names again.
258    
259 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
260     Also rename the _init() and _fini() declarations.
261    
262 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
263     Fixup the constructor/destructor function names again (they should be _init()
264     and _fini() it seems, and not being called caused sandbox_lib_path to be
265     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
266     Add both the path in given SANDBOX_x variable, as well as its symlink
267     resolved path in init_env_entries(). Modify filter_path() to be able to
268     resolve paths without resolving symlinks, as well as to be able to resolve
269     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
270     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
271     for bug #31019 cause access violations if we try to remove a symlink that is
272     not in protected path, but points to a protected path. Fix a memory leak in
273     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
274     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
275     (pid_string was uninitialized). General syntax cleanups.
276    
277 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
278     infamous "pids file is not a regular file" w/out newline bug.
279    
280 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
281     Correct libc_version path detection, since it was screwing up if libdir !=
282     "/lib/".
283    
284     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
285 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
286    
287 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
288 azarah 31 Fix symbols.in not added to dist.
289    
290 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
291 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
292     White space fixes.
293    
294 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
295 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
296 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
297     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
298     for glibc and other libc's that use this. Update libsandbox.c to use these
299     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
300     process unset it.
301    
302 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
303 ferringb 28 killed off _init and _fini in favor of
304     void __attribute__ ((constructor)) init_func and
305     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
306    
307 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
308     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
309     having the hick-ups.
310    
311 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
312     Makefile.am: Fixed compilation.
313    
314 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
315     Gutted the bugger so it stops checking for a c++ and fortran compiler.
316     Do *not* regenerate aclocal.m4 for making a release until a better
317     solution is created.
318    
319 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
320     Removal of more hardcoded paths.
321    
322 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
323     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
324    
325     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
326 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
327     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
328     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
329     To get to a point of testing, automake && autoconf; created requisite files w/
330     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
331     /lib and /usr/lib/portage/bin.
332    
333 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
334     closing out bug #70225, potential overflow of the sandbox_pids_file var.
335    
336     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
337     (think it was at least) allows intermixing of code and data segments. bug #70351
338     should be fixed by this.
339    
340     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
341     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
342    
343     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
344     Seth Robertson that tracked down all adjuct flags for read operations that
345     do not invoke a write operation.
346    
347     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
348     Another fix from jstubbs regarding a free() on a stack variable for the
349     environment -- tracking now prevents extraneous free()'s segfault.
350    
351     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
352     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
353     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
354     Also remove the errno = ESUCCESS settings as documentation points out that
355     a library isn't allowed to do that.
356    
357     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
358     file_security_check() function to check random potential exploits on files
359     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
360     the 'system-crippling' exploits (bug 21923) and catches a few other
361     potential problems.
362    
363     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
364     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
365    
366     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
367     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
368     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
369    
370     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
371     Fix permissions and group of pids file and logs. Permissions should be 0664
372     and group should be 'portage'. Bug #34260.
373    
374     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
375     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
376     to the real execve (in our execve wrapper). Seems that on some arches (sparc
377     among others) do not allow us to tamper with the readonly copy passed to
378     execve, so pass our own copy of the environment. Bug #42290.
379    
380     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
381     Changed tail to head and added a notice about duration of glibc check.
382    
383     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
384     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
385     as there isn't a guarentee that it is dynamic.
386    
387     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
388     If 'file' passed to before_syscall(const char *func, const char *file) is
389     invalid, we should set errno to ENOENT, and not EINVAL. This should
390     close bug #32238.
391    
392     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
393     Fix a bug that occurs mainly on 64bit arch, where the file passed to
394     the functions we wrap, is invalid, and then cause canonicalize to pass
395     garbage to before_syscall(), thanks to great detective work from
396     Andrea Luzzardi <al@sig11.org> (bug #29846).
397    
398     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
399     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
400    
401     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
402     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
403     only checked the destination patch, and not the source, so we could move
404     a protected file to a unprotected directory, and then delete/modify it.
405     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
406    
407     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
408     Added python2.3 to the predict section/variable.
409    
410     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
411     sandbox.h, sandbox_futils.c :
412     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
413     it is not set, it will revert to its old value.
414    
415     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
416     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
417     rather than failing with a violation, bug #29748.
418    
419     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
420     Fix canonicalize() to ignore calls with path = "".
421    
422     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
423     sandbox_futils.c, canonicalize.c :
424     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
425     call handled strings larger than PATH_MAX (bug #21766). It however does not
426     work the same on 2.4 kernels.
427    
428     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
429     do not need the system call. We use the default getcwd() function via a
430     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
431     means the current directory was removed, OR that the the system call for
432     getcwd failed (curious is that it do not fail and return NULL or set
433     errno, but rather just truncate the retured directory - usually from the
434     start), and if so, we use the generic getcwd() function (__egetcwd). Note
435     that we do not use the generic version all the time, as it calls lstat()
436     a great number of times, and performance degrade much.
437    
438     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
439     libsandbox.c :
440     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
441    
442     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
443     create-localdecls :
444     When checking path names of files accessed, we need to canonicalize it, else
445     it may be a symlink in a 'write allowed' directory pointing to a file in a
446     directory we should not have write access to.
447    
448     With something like coreutils-5.0, we have two problems:
449     1) One of the tests checks if getcwd() can return a path longer than
450     PATH_MAX. This test then tries to create a dir which even while
451     created local (mkdir("conftest2")), it ends up being resolved with
452     a name that is much larger than PATH_MAX. The problem now is that
453     canonicalize() have undefined behaviour when the path was too long
454     (returned wrongly truncated paths, etc), and pass the wrong path to
455     before_syscall() (causing the bogus sandbox violations).
456     2) The ecanonicalize() function we used, along with the canonicalize()
457     function did not support longer than PATH_MAX. This is partly a
458     cause for 1), but the error checking (rather lack of it) of calls
459     to erealpath() in canonicalize() was the prime reason for 1).
460    
461     As we do not use this canonicalized name to call the function, we resolve this
462     by fixing canonicalize() to do better error checking, and ecanonicalize() as
463     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
464     While they will resolve paths properly now, and can check if a write/read is
465     allowed, the functions called from the sandboxed environment will still work
466     as expected.
467    
468     This should resolve bug #21766.
469    
470     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
471     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
472     it (bug #16298).
473    
474     Problem is that for some reason locale fopen's locale.alias with mode "rm".
475    
476     -------------------------------------------------------
477     nosferatu root # grep fopen locale.log
478     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
479     nosferatu root #
480     --------------------------------------------------------
481    
482     I checked the source of locale, but it have fopen with mode 'r', so
483     not sure where the "rm" mode comes from. Anyhow, changed the check in
484     before_syscall_open_char() to also see mode "rm" as readonly.
485    
486     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
487    
488     Add glibc-2.3 support.
489    
490     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
491    
492     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
493     operations releated to preload, as well as only try to modify ld.so.preload
494     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
495     not using ld.so.preload. Fix to not write this instance of sandbox's pid
496     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
497    
498     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
499    
500     Changed the LD to CC for hppa.
501    
502     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
503    
504     Killed the previous changes I made.
505    
506     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
507    
508     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
509    
510     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
511    
512     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
513    
514     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
515    
516     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
517     for this fix.
518    
519     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
520    
521     sandbox_futils defined a dirname() function that was masking the same
522     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
523     '/usr/lib/portage/bi/'). Fixed function to return expected results and
524     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
525     11231.
526    
527     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
528    
529     Fix a segfault in libsandbox.c if canonicalize() was called with
530     first parameter = NULL.
531    
532     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
533    
534     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
535     cleanup() for this.
536    
537     Change cleanup() in sandbox.c not to exit with fail status if
538     the pidsfile is missing. We really should still display sandbox
539     violations if they occured.
540    
541     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
542    
543     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
544     the last sandbox running.
545    
546     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
547    
548     Major cleanups to mainly libsandbox.c again.
549    
550     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
551    
552     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
553     parties involved should please contact me so that we can fix it.
554    
555     Add opendir wrapper to libsandbox.c.
556    
557     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
558    
559     Do some more cleanups to ecanonicalize(), as it dropped filenames in
560     rare cases (after my symlink cleanups), and caused glibc to bork.
561     These fixes went into canonicalize.c.
562    
563     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
564    
565     Fix spawn_shell() and main() in sandbox.c to properly return fail
566     status.
567    
568     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
569    
570     The new canonicalize() function in libsandbox.c also resolved symlinks,
571     which caused on cleaning sandbox errors if the symlink pointed to a
572     file in the live root. Ripped out canonicalize() and realpath() from
573     glibc; removed the symlink stuff, and changed them to ecanonicalize()
574     and erealpath().
575    
576     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
577    
578     Ripped out all the wrappers, and implemented those of InstallWatch.
579     Losts of cleanups and bugfixes. Implement a execve that forces
580     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
581     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
582     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
583     parts; it now have an install target.
584    
585     Reformat the whole thing to look somewhat like the reworked sandbox.c
586     and new sandbox.h and sandbox_futils.c from:
587    
588     Brad House <brad@mainstreetsoftworks.com>.
589    
590     Additional Copyrights now due to the InstallWatch code:
591    
592     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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