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Revision 153 - (hide annotations) (download)
Mon Aug 1 07:57:35 2005 UTC (8 years, 11 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 27602 byte(s)
Still do normal log if debugging is requested.
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 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6    
7     Still do normal log if debugging is requested.
8    
9 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
10     sandbox_futils.c:
11    
12     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
13     in libsandbox .. bug #100309.
14    
15 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
16    
17     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
18    
19 azarah 149 * sandbox-1.2.11 (2005/07/14)
20    
21 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
22     Fix getcwd, bug #98419.
23    
24 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
25     libsandbox.c:
26 azarah 146 - Try to cleanup and make error handling/printing consistent.
27     - Remove old logs if present and conflicting with current.
28 azarah 147 - Fix compile error with previous change, and return rather then exit().
29 azarah 145
30 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
31     sandbox.h, sandbox_futils.c:
32     - Fix possible segfault in env init code.
33     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
34     write to /var/log/sandbox/, so in theory do not need all that.
35 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
36 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
37 azarah 142 - Remove unused includes and variables.
38 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
39     OUTSIDE_LIBSANDBOX is not defined.
40 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
41     printing's last line not honouring NOCOLOR.
42 azarah 138
43 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
44     libsandbox.c:
45     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
46     write to it.
47 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
48 azarah 136 - Add check_prefixes() with major cleanup on check_access().
49 azarah 137 - Cleanup init_env_entries() and check_prefixes().
50 azarah 134
51 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
52     sandbox_futils.c, libsandbox.c:
53     Remove unused 'pids file' code.
54    
55 azarah 128 * sandbox-1.2.10 (2005/07/03)
56    
57 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
58     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
59    
60 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
61     General cleanups:
62     - Remove fooling around with exit codes - we error out on presence of a log
63     anyhow.
64 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
65     appropriate there.
66 azarah 123
67 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
68     Cleanup the fail_nametoolong stuff a bit more.
69    
70 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
71 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
72    
73     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
74 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
75     in check_syscall(). Should speed things up a bit (at least for the getcwd()
76     and long path name test it goes down to under a second, and not 10+ seconds
77     like before). Also warn if we skip checking due to the canonicalized path
78     being too long.
79    
80     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
81 azarah 118 More comment/readability cleanups.
82    
83 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
84     sandbox_futils.c, libsandbox.c:
85     Some strncpy/strncat and other cleanups.
86    
87 azarah 115 * sandbox-1.2.9 (2005/06/09)
88    
89 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
90     Move symlink hack down a bit to try and minimize on the amount of lstat()
91     calls we do.
92    
93 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
94     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
95    
96 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
97     Add wrapper for access() function, bug #85413.
98    
99 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
100     Use generic getcwd() implementation from uclibc - should be more portable
101     and looks a bit cleaner.
102    
103 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
104     Make sure our true_* pointers are initialized to NULL, and that we check for
105     all references that they are valid.
106    
107 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
108     Be default we will fail if the path name we try to canonicalize is too long.
109     This however could cause issues with some things (bug #94630 and #21766), so
110     if fail_nametoolong == 0, canonicalize() will return a null length string and
111     do not fail.
112    
113 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
114     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
115     make sure we re-export the new TMPDIR environment variable.
116    
117 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
118     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
119     by Marcus D. Hanwell <cryos@gentoo.org>.
120    
121 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
122     Add /dev/console to write list, bug #38588.
123    
124 azarah 102 * sandbox-1.2.8 (2005/05/13)
125    
126 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
127 azarah 101 sandbox.h, sandbox_futils.c:
128     General cleanups.
129    
130     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
131 azarah 100 sandbox.h:
132     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
133    
134     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
135 azarah 99 sandbox.h, sandbox_futils.c:
136     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
137     to use TMPDIR if present in environment.
138    
139 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
140     Remove sandbox_log_file from main() as its no longer used.
141    
142 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
143     sandbox_futils.c:
144     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
145     if already exported when sandbox started). Fix get_sandbox_log() and new
146     get_sandbox_debug_log() to not use already exported environment variables if
147     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
148     SB_PATH_MAX fixes.
149    
150 azarah 94 * sandbox-1.2.7 (2005/05/12)
151    
152 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
153     sandbox_futils.c:
154     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
155    
156 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
157     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
158     with '(null)' in it if we did not call sandbox with absolute path.
159    
160 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
161 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
162     for the child.
163    
164     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
165 azarah 90 Remove global preload_adaptable as it is no longer used.
166    
167     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
168 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
169     to try and avoid issues like bug #91541 that causes sandbox to crash if
170     we set LD_PRELOAD sandbox side already.
171    
172 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
173 azarah 88 Move print_sandbox_log() up to make things neater.
174    
175     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
176 azarah 87 Remove load_preload_libs(), as its not used anymore.
177    
178 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
179 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
180    
181     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
182 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
183    
184     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
185 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
186    
187 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
188     Fix typo in code that checks if we got valid group information, causing a
189     segmentation fault, bug #91637.
190    
191 azarah 79 * sandbox-1.2.6 (2005/05/10)
192    
193 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
194     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
195     for some odd reason, bug #91541.
196    
197 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
198     Fix typo (sizeof -> strlen).
199    
200 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
201     rewrote the sbcontext caching code so it accounts for env changes since lib
202     initialization.
203    
204 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
205     We create libctest.c via configure, so no need to keep it around. Do some
206     cleanup related to libctest.c and libctest during configure.
207    
208 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
209     Add rename support of symlinks pointing to protected files/directories.
210    
211 azarah 72 * sandbox-1.2.5 (2005/05/04)
212    
213 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
214     sandbox.bashrc:
215     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
216     already set, init of the env vars fails for some reason, so do this later on,
217     and do not warn (bug #91431).
218    
219 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
220     sandbox.bashrc:
221     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
222    
223 azarah 68 * sandbox-1.2.4 (2005/05/03)
224    
225 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
226     Do not init the env entries with each call, as it creates too many calls to
227 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
228 azarah 66
229 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
230     Add /dev/pty to default write list. Noticed by Morfic.
231    
232 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
233     sandbox.h:
234     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
235     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
236    
237 azarah 59 * sandbox-1.2.3 (2005/04/29)
238    
239 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
240     Do not check for (*&#$(* CXX or F77.
241    
242 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
243     Do not append '/' to pathname in filter_path() if it already ends with it.
244    
245 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
246     With az's help, clean up autotools to work with cross-compiling.
247    
248 azarah 59 * sandbox-1.2.2 (2005/04/28)
249 azarah 48
250 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
251     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
252     have issues; bug #90592.
253    
254 azarah 59 * sandbox-1.2.1 (2005/04/23)
255 azarah 44
256 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
257     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
258     Make sure all functions used in libsandbox.c is declared static. Define
259     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
260     linking with its object. Hopefully this will fix bug #90153.
261    
262 azarah 59 * sandbox-1.2 (2005/04/23)
263 azarah 46
264 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
265     Allow lchown a symlink in write-allowed path pointing to write-denied
266     target.
267    
268 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
269     Also show resolved symlink names in the log.
270    
271 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
272     Seems -nostdlib was the problem with the constructor/destructor - remove it
273     from Makefile.am, and change the constructor/destructor names again.
274    
275 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
276     Also rename the _init() and _fini() declarations.
277    
278 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
279     Fixup the constructor/destructor function names again (they should be _init()
280     and _fini() it seems, and not being called caused sandbox_lib_path to be
281     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
282     Add both the path in given SANDBOX_x variable, as well as its symlink
283     resolved path in init_env_entries(). Modify filter_path() to be able to
284     resolve paths without resolving symlinks, as well as to be able to resolve
285     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
286     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
287     for bug #31019 cause access violations if we try to remove a symlink that is
288     not in protected path, but points to a protected path. Fix a memory leak in
289     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
290     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
291     (pid_string was uninitialized). General syntax cleanups.
292    
293 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
294     infamous "pids file is not a regular file" w/out newline bug.
295    
296 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
297     Correct libc_version path detection, since it was screwing up if libdir !=
298     "/lib/".
299    
300     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
301 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
302    
303 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
304 azarah 31 Fix symbols.in not added to dist.
305    
306 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
307 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
308     White space fixes.
309    
310 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
311 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
312 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
313     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
314     for glibc and other libc's that use this. Update libsandbox.c to use these
315     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
316     process unset it.
317    
318 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
319 ferringb 28 killed off _init and _fini in favor of
320     void __attribute__ ((constructor)) init_func and
321     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
322    
323 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
324     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
325     having the hick-ups.
326    
327 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
328     Makefile.am: Fixed compilation.
329    
330 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
331     Gutted the bugger so it stops checking for a c++ and fortran compiler.
332     Do *not* regenerate aclocal.m4 for making a release until a better
333     solution is created.
334    
335 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
336     Removal of more hardcoded paths.
337    
338 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
339     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
340    
341     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
342 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
343     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
344     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
345     To get to a point of testing, automake && autoconf; created requisite files w/
346     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
347     /lib and /usr/lib/portage/bin.
348    
349 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
350     closing out bug #70225, potential overflow of the sandbox_pids_file var.
351    
352     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
353     (think it was at least) allows intermixing of code and data segments. bug #70351
354     should be fixed by this.
355    
356     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
357     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
358    
359     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
360     Seth Robertson that tracked down all adjuct flags for read operations that
361     do not invoke a write operation.
362    
363     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
364     Another fix from jstubbs regarding a free() on a stack variable for the
365     environment -- tracking now prevents extraneous free()'s segfault.
366    
367     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
368     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
369     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
370     Also remove the errno = ESUCCESS settings as documentation points out that
371     a library isn't allowed to do that.
372    
373     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
374     file_security_check() function to check random potential exploits on files
375     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
376     the 'system-crippling' exploits (bug 21923) and catches a few other
377     potential problems.
378    
379     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
380     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
381    
382     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
383     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
384     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
385    
386     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
387     Fix permissions and group of pids file and logs. Permissions should be 0664
388     and group should be 'portage'. Bug #34260.
389    
390     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
391     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
392     to the real execve (in our execve wrapper). Seems that on some arches (sparc
393     among others) do not allow us to tamper with the readonly copy passed to
394     execve, so pass our own copy of the environment. Bug #42290.
395    
396     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
397     Changed tail to head and added a notice about duration of glibc check.
398    
399     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
400     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
401     as there isn't a guarentee that it is dynamic.
402    
403     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
404     If 'file' passed to before_syscall(const char *func, const char *file) is
405     invalid, we should set errno to ENOENT, and not EINVAL. This should
406     close bug #32238.
407    
408     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
409     Fix a bug that occurs mainly on 64bit arch, where the file passed to
410     the functions we wrap, is invalid, and then cause canonicalize to pass
411     garbage to before_syscall(), thanks to great detective work from
412     Andrea Luzzardi <al@sig11.org> (bug #29846).
413    
414     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
415     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
416    
417     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
418     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
419     only checked the destination patch, and not the source, so we could move
420     a protected file to a unprotected directory, and then delete/modify it.
421     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
422    
423     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
424     Added python2.3 to the predict section/variable.
425    
426     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
427     sandbox.h, sandbox_futils.c :
428     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
429     it is not set, it will revert to its old value.
430    
431     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
432     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
433     rather than failing with a violation, bug #29748.
434    
435     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
436     Fix canonicalize() to ignore calls with path = "".
437    
438     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
439     sandbox_futils.c, canonicalize.c :
440     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
441     call handled strings larger than PATH_MAX (bug #21766). It however does not
442     work the same on 2.4 kernels.
443    
444     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
445     do not need the system call. We use the default getcwd() function via a
446     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
447     means the current directory was removed, OR that the the system call for
448     getcwd failed (curious is that it do not fail and return NULL or set
449     errno, but rather just truncate the retured directory - usually from the
450     start), and if so, we use the generic getcwd() function (__egetcwd). Note
451     that we do not use the generic version all the time, as it calls lstat()
452     a great number of times, and performance degrade much.
453    
454     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
455     libsandbox.c :
456     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
457    
458     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
459     create-localdecls :
460     When checking path names of files accessed, we need to canonicalize it, else
461     it may be a symlink in a 'write allowed' directory pointing to a file in a
462     directory we should not have write access to.
463    
464     With something like coreutils-5.0, we have two problems:
465     1) One of the tests checks if getcwd() can return a path longer than
466     PATH_MAX. This test then tries to create a dir which even while
467     created local (mkdir("conftest2")), it ends up being resolved with
468     a name that is much larger than PATH_MAX. The problem now is that
469     canonicalize() have undefined behaviour when the path was too long
470     (returned wrongly truncated paths, etc), and pass the wrong path to
471     before_syscall() (causing the bogus sandbox violations).
472     2) The ecanonicalize() function we used, along with the canonicalize()
473     function did not support longer than PATH_MAX. This is partly a
474     cause for 1), but the error checking (rather lack of it) of calls
475     to erealpath() in canonicalize() was the prime reason for 1).
476    
477     As we do not use this canonicalized name to call the function, we resolve this
478     by fixing canonicalize() to do better error checking, and ecanonicalize() as
479     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
480     While they will resolve paths properly now, and can check if a write/read is
481     allowed, the functions called from the sandboxed environment will still work
482     as expected.
483    
484     This should resolve bug #21766.
485    
486     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
488     it (bug #16298).
489    
490     Problem is that for some reason locale fopen's locale.alias with mode "rm".
491    
492     -------------------------------------------------------
493     nosferatu root # grep fopen locale.log
494     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
495     nosferatu root #
496     --------------------------------------------------------
497    
498     I checked the source of locale, but it have fopen with mode 'r', so
499     not sure where the "rm" mode comes from. Anyhow, changed the check in
500     before_syscall_open_char() to also see mode "rm" as readonly.
501    
502     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
503    
504     Add glibc-2.3 support.
505    
506     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
507    
508     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
509     operations releated to preload, as well as only try to modify ld.so.preload
510     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
511     not using ld.so.preload. Fix to not write this instance of sandbox's pid
512     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
513    
514     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
515    
516     Changed the LD to CC for hppa.
517    
518     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
519    
520     Killed the previous changes I made.
521    
522     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
523    
524     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
525    
526     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
527    
528     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
529    
530     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
531    
532     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
533     for this fix.
534    
535     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
536    
537     sandbox_futils defined a dirname() function that was masking the same
538     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
539     '/usr/lib/portage/bi/'). Fixed function to return expected results and
540     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
541     11231.
542    
543     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
544    
545     Fix a segfault in libsandbox.c if canonicalize() was called with
546     first parameter = NULL.
547    
548     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
549    
550     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
551     cleanup() for this.
552    
553     Change cleanup() in sandbox.c not to exit with fail status if
554     the pidsfile is missing. We really should still display sandbox
555     violations if they occured.
556    
557     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
558    
559     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
560     the last sandbox running.
561    
562     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
563    
564     Major cleanups to mainly libsandbox.c again.
565    
566     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
567    
568     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
569     parties involved should please contact me so that we can fix it.
570    
571     Add opendir wrapper to libsandbox.c.
572    
573     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
574    
575     Do some more cleanups to ecanonicalize(), as it dropped filenames in
576     rare cases (after my symlink cleanups), and caused glibc to bork.
577     These fixes went into canonicalize.c.
578    
579     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
580    
581     Fix spawn_shell() and main() in sandbox.c to properly return fail
582     status.
583    
584     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
585    
586     The new canonicalize() function in libsandbox.c also resolved symlinks,
587     which caused on cleaning sandbox errors if the symlink pointed to a
588     file in the live root. Ripped out canonicalize() and realpath() from
589     glibc; removed the symlink stuff, and changed them to ecanonicalize()
590     and erealpath().
591    
592     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
593    
594     Ripped out all the wrappers, and implemented those of InstallWatch.
595     Losts of cleanups and bugfixes. Implement a execve that forces
596     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
597     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
598     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
599     parts; it now have an install target.
600    
601     Reformat the whole thing to look somewhat like the reworked sandbox.c
602     and new sandbox.h and sandbox_futils.c from:
603    
604     Brad House <brad@mainstreetsoftworks.com>.
605    
606     Additional Copyrights now due to the InstallWatch code:
607    
608     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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