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Revision 152 - (hide annotations) (download)
Wed Jul 27 18:04:35 2005 UTC (9 years ago) by azarah
Original Path: trunk/ChangeLog
File size: 27485 byte(s)
Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
in libsandbox .. bug #100309.

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

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