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Revision 183 - (hide annotations) (download)
Wed Nov 30 22:54:36 2005 UTC (8 years, 10 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 30316 byte(s)
Use versioned symbols on supported libc's for functions we wrap, as well as
provide all versions of specific functions.  Some syntax cleanups.

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 183 01 Dec 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, Makefile.am,
6     localdecls.h, scripts/Makefile.am, scripts/gen_symbol_version_map.awk,
7     scripts/gen_symbol_header.awk, src/Makefile.am, src/symbols.in,
8     src/libsandbox.c, src/getcwd.c:
9    
10     Use versioned symbols on supported libc's for functions we wrap, as well as
11     provide all versions of specific functions. Some syntax cleanups.
12    
13     28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
14 azarah 181 sandbox_fdutils.c:
15 azarah 179
16     Detect if we on 64bit arch automatically.
17    
18 azarah 180 Update contact email. Fix quoting.
19    
20 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
21     path checking as well, and add --enable-multilib switch to configure.
22    
23 azarah 176 * sandbox-1.2.14 (2005/11/28)
24    
25 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
26 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
27 azarah 172
28     Check generic getcwd()'s return as well for validity, bug #101728.
29    
30 azarah 173 Cleanup environ variables.
31    
32 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
33     to readonly in sandbox.bashrc.
34    
35 azarah 175 Make sure we use our bashrc.
36    
37 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
38    
39     Do not pass mode to true_open and true_open64 if not needed. Should fix a
40     segfault in some cases.
41    
42 azarah 169 * sandbox-1.2.13 (2005/09/12)
43 azarah 167
44 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
45 azarah 165
46     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
47     itself.
48    
49 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
50     uClibc 'call preloaded library fini before that of app' issue ... probably
51     will not help much, but we try.
52    
53 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
54    
55     Also allow symlink() system call to operate on a symlink in a writable path
56     that points to non-writable path, bug #104711.
57    
58 azarah 160 * sandbox-1.2.12 (2005/08/05)
59    
60 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
61     sandbox.h:
62 azarah 156
63     Do not give an access violation if the access() system call do not have
64     write/read access - it does not actually modify, so we only need to return
65     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
66     bug #101433.
67    
68 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
69     and make the current directory the work directory. Also rename the variable
70     portage_tmp_dir to work_dir.
71    
72 azarah 158 Remove the tmp_dir variable - we do not need it.
73    
74 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
75    
76 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
77    
78     Still do normal log if debugging is requested.
79    
80 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
81     to only enable if equal to "1" or "yes".
82    
83 azarah 155 Add /dev/tts to write permit, bug #42809.
84    
85 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
86     sandbox_futils.c:
87    
88     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
89     in libsandbox .. bug #100309.
90    
91 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
92    
93     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
94    
95 azarah 149 * sandbox-1.2.11 (2005/07/14)
96    
97 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
98     Fix getcwd, bug #98419.
99    
100 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
101     libsandbox.c:
102 azarah 146 - Try to cleanup and make error handling/printing consistent.
103     - Remove old logs if present and conflicting with current.
104 azarah 147 - Fix compile error with previous change, and return rather then exit().
105 azarah 145
106 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
107     sandbox.h, sandbox_futils.c:
108     - Fix possible segfault in env init code.
109     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
110     write to /var/log/sandbox/, so in theory do not need all that.
111 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
112 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
113 azarah 142 - Remove unused includes and variables.
114 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
115     OUTSIDE_LIBSANDBOX is not defined.
116 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
117     printing's last line not honouring NOCOLOR.
118 azarah 138
119 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
120     libsandbox.c:
121     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
122     write to it.
123 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
124 azarah 136 - Add check_prefixes() with major cleanup on check_access().
125 azarah 137 - Cleanup init_env_entries() and check_prefixes().
126 azarah 134
127 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
128     sandbox_futils.c, libsandbox.c:
129     Remove unused 'pids file' code.
130    
131 azarah 128 * sandbox-1.2.10 (2005/07/03)
132    
133 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
134     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
135    
136 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
137     General cleanups:
138     - Remove fooling around with exit codes - we error out on presence of a log
139     anyhow.
140 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
141     appropriate there.
142 azarah 123
143 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
144     Cleanup the fail_nametoolong stuff a bit more.
145    
146 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
147 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
148    
149     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
150 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
151     in check_syscall(). Should speed things up a bit (at least for the getcwd()
152     and long path name test it goes down to under a second, and not 10+ seconds
153     like before). Also warn if we skip checking due to the canonicalized path
154     being too long.
155    
156     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
157 azarah 118 More comment/readability cleanups.
158    
159 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
160     sandbox_futils.c, libsandbox.c:
161     Some strncpy/strncat and other cleanups.
162    
163 azarah 115 * sandbox-1.2.9 (2005/06/09)
164    
165 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
166     Move symlink hack down a bit to try and minimize on the amount of lstat()
167     calls we do.
168    
169 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
170     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
171    
172 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
173     Add wrapper for access() function, bug #85413.
174    
175 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
176     Use generic getcwd() implementation from uclibc - should be more portable
177     and looks a bit cleaner.
178    
179 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
180     Make sure our true_* pointers are initialized to NULL, and that we check for
181     all references that they are valid.
182    
183 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
184     Be default we will fail if the path name we try to canonicalize is too long.
185     This however could cause issues with some things (bug #94630 and #21766), so
186     if fail_nametoolong == 0, canonicalize() will return a null length string and
187     do not fail.
188    
189 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
190     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
191     make sure we re-export the new TMPDIR environment variable.
192    
193 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
194     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
195     by Marcus D. Hanwell <cryos@gentoo.org>.
196    
197 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
198     Add /dev/console to write list, bug #38588.
199    
200 azarah 102 * sandbox-1.2.8 (2005/05/13)
201    
202 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
203 azarah 101 sandbox.h, sandbox_futils.c:
204     General cleanups.
205    
206     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
207 azarah 100 sandbox.h:
208     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
209    
210     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
211 azarah 99 sandbox.h, sandbox_futils.c:
212     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
213     to use TMPDIR if present in environment.
214    
215 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216     Remove sandbox_log_file from main() as its no longer used.
217    
218 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
219     sandbox_futils.c:
220     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
221     if already exported when sandbox started). Fix get_sandbox_log() and new
222     get_sandbox_debug_log() to not use already exported environment variables if
223     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
224     SB_PATH_MAX fixes.
225    
226 azarah 94 * sandbox-1.2.7 (2005/05/12)
227    
228 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
229     sandbox_futils.c:
230     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
231    
232 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
233     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
234     with '(null)' in it if we did not call sandbox with absolute path.
235    
236 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
237 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
238     for the child.
239    
240     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
241 azarah 90 Remove global preload_adaptable as it is no longer used.
242    
243     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
244 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
245     to try and avoid issues like bug #91541 that causes sandbox to crash if
246     we set LD_PRELOAD sandbox side already.
247    
248 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
249 azarah 88 Move print_sandbox_log() up to make things neater.
250    
251     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
252 azarah 87 Remove load_preload_libs(), as its not used anymore.
253    
254 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
255 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
256    
257     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
258 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
259    
260     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
261 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
262    
263 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
264     Fix typo in code that checks if we got valid group information, causing a
265     segmentation fault, bug #91637.
266    
267 azarah 79 * sandbox-1.2.6 (2005/05/10)
268    
269 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
270     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
271     for some odd reason, bug #91541.
272    
273 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
274     Fix typo (sizeof -> strlen).
275    
276 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
277     rewrote the sbcontext caching code so it accounts for env changes since lib
278     initialization.
279    
280 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
281     We create libctest.c via configure, so no need to keep it around. Do some
282     cleanup related to libctest.c and libctest during configure.
283    
284 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
285     Add rename support of symlinks pointing to protected files/directories.
286    
287 azarah 72 * sandbox-1.2.5 (2005/05/04)
288    
289 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
290     sandbox.bashrc:
291     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
292     already set, init of the env vars fails for some reason, so do this later on,
293     and do not warn (bug #91431).
294    
295 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
296     sandbox.bashrc:
297     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
298    
299 azarah 68 * sandbox-1.2.4 (2005/05/03)
300    
301 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
302     Do not init the env entries with each call, as it creates too many calls to
303 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
304 azarah 66
305 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
306     Add /dev/pty to default write list. Noticed by Morfic.
307    
308 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
309     sandbox.h:
310     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
311     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
312    
313 azarah 59 * sandbox-1.2.3 (2005/04/29)
314    
315 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
316     Do not check for (*&#$(* CXX or F77.
317    
318 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
319     Do not append '/' to pathname in filter_path() if it already ends with it.
320    
321 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
322     With az's help, clean up autotools to work with cross-compiling.
323    
324 azarah 59 * sandbox-1.2.2 (2005/04/28)
325 azarah 48
326 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
327     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
328     have issues; bug #90592.
329    
330 azarah 59 * sandbox-1.2.1 (2005/04/23)
331 azarah 44
332 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
333     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
334     Make sure all functions used in libsandbox.c is declared static. Define
335     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
336     linking with its object. Hopefully this will fix bug #90153.
337    
338 azarah 59 * sandbox-1.2 (2005/04/23)
339 azarah 46
340 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
341     Allow lchown a symlink in write-allowed path pointing to write-denied
342     target.
343    
344 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
345     Also show resolved symlink names in the log.
346    
347 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
348     Seems -nostdlib was the problem with the constructor/destructor - remove it
349     from Makefile.am, and change the constructor/destructor names again.
350    
351 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
352     Also rename the _init() and _fini() declarations.
353    
354 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
355     Fixup the constructor/destructor function names again (they should be _init()
356     and _fini() it seems, and not being called caused sandbox_lib_path to be
357     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
358     Add both the path in given SANDBOX_x variable, as well as its symlink
359     resolved path in init_env_entries(). Modify filter_path() to be able to
360     resolve paths without resolving symlinks, as well as to be able to resolve
361     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
362     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
363     for bug #31019 cause access violations if we try to remove a symlink that is
364     not in protected path, but points to a protected path. Fix a memory leak in
365     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
366     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
367     (pid_string was uninitialized). General syntax cleanups.
368    
369 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
370     infamous "pids file is not a regular file" w/out newline bug.
371    
372 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
373     Correct libc_version path detection, since it was screwing up if libdir !=
374     "/lib/".
375    
376     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
377 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
378    
379 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
380 azarah 31 Fix symbols.in not added to dist.
381    
382 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
383 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
384     White space fixes.
385    
386 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
387 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
388 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
389     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
390     for glibc and other libc's that use this. Update libsandbox.c to use these
391     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
392     process unset it.
393    
394 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
395 ferringb 28 killed off _init and _fini in favor of
396     void __attribute__ ((constructor)) init_func and
397     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
398    
399 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
400     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
401     having the hick-ups.
402    
403 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
404     Makefile.am: Fixed compilation.
405    
406 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
407     Gutted the bugger so it stops checking for a c++ and fortran compiler.
408     Do *not* regenerate aclocal.m4 for making a release until a better
409     solution is created.
410    
411 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
412     Removal of more hardcoded paths.
413    
414 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
415     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
416    
417     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
418 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
419     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
420     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
421     To get to a point of testing, automake && autoconf; created requisite files w/
422     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
423     /lib and /usr/lib/portage/bin.
424    
425 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
426     closing out bug #70225, potential overflow of the sandbox_pids_file var.
427    
428     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
429     (think it was at least) allows intermixing of code and data segments. bug #70351
430     should be fixed by this.
431    
432     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
433     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
434    
435     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
436     Seth Robertson that tracked down all adjuct flags for read operations that
437     do not invoke a write operation.
438    
439     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
440     Another fix from jstubbs regarding a free() on a stack variable for the
441     environment -- tracking now prevents extraneous free()'s segfault.
442    
443     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
444     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
445     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
446     Also remove the errno = ESUCCESS settings as documentation points out that
447     a library isn't allowed to do that.
448    
449     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
450     file_security_check() function to check random potential exploits on files
451     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
452     the 'system-crippling' exploits (bug 21923) and catches a few other
453     potential problems.
454    
455     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
456     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
457    
458     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
459     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
460     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
461    
462     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
463     Fix permissions and group of pids file and logs. Permissions should be 0664
464     and group should be 'portage'. Bug #34260.
465    
466     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
467     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
468     to the real execve (in our execve wrapper). Seems that on some arches (sparc
469     among others) do not allow us to tamper with the readonly copy passed to
470     execve, so pass our own copy of the environment. Bug #42290.
471    
472     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
473     Changed tail to head and added a notice about duration of glibc check.
474    
475     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
476     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
477     as there isn't a guarentee that it is dynamic.
478    
479     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
480     If 'file' passed to before_syscall(const char *func, const char *file) is
481     invalid, we should set errno to ENOENT, and not EINVAL. This should
482     close bug #32238.
483    
484     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
485     Fix a bug that occurs mainly on 64bit arch, where the file passed to
486     the functions we wrap, is invalid, and then cause canonicalize to pass
487     garbage to before_syscall(), thanks to great detective work from
488     Andrea Luzzardi <al@sig11.org> (bug #29846).
489    
490     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
491     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
492    
493     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
494     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
495     only checked the destination patch, and not the source, so we could move
496     a protected file to a unprotected directory, and then delete/modify it.
497     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
498    
499     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
500     Added python2.3 to the predict section/variable.
501    
502     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
503     sandbox.h, sandbox_futils.c :
504     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
505     it is not set, it will revert to its old value.
506    
507     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
508     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
509     rather than failing with a violation, bug #29748.
510    
511     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
512     Fix canonicalize() to ignore calls with path = "".
513    
514     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
515     sandbox_futils.c, canonicalize.c :
516     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
517     call handled strings larger than PATH_MAX (bug #21766). It however does not
518     work the same on 2.4 kernels.
519    
520     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
521     do not need the system call. We use the default getcwd() function via a
522     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
523     means the current directory was removed, OR that the the system call for
524     getcwd failed (curious is that it do not fail and return NULL or set
525     errno, but rather just truncate the retured directory - usually from the
526     start), and if so, we use the generic getcwd() function (__egetcwd). Note
527     that we do not use the generic version all the time, as it calls lstat()
528     a great number of times, and performance degrade much.
529    
530     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
531     libsandbox.c :
532     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
533    
534     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
535     create-localdecls :
536     When checking path names of files accessed, we need to canonicalize it, else
537     it may be a symlink in a 'write allowed' directory pointing to a file in a
538     directory we should not have write access to.
539    
540     With something like coreutils-5.0, we have two problems:
541     1) One of the tests checks if getcwd() can return a path longer than
542     PATH_MAX. This test then tries to create a dir which even while
543     created local (mkdir("conftest2")), it ends up being resolved with
544     a name that is much larger than PATH_MAX. The problem now is that
545     canonicalize() have undefined behaviour when the path was too long
546     (returned wrongly truncated paths, etc), and pass the wrong path to
547     before_syscall() (causing the bogus sandbox violations).
548     2) The ecanonicalize() function we used, along with the canonicalize()
549     function did not support longer than PATH_MAX. This is partly a
550     cause for 1), but the error checking (rather lack of it) of calls
551     to erealpath() in canonicalize() was the prime reason for 1).
552    
553     As we do not use this canonicalized name to call the function, we resolve this
554     by fixing canonicalize() to do better error checking, and ecanonicalize() as
555     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
556     While they will resolve paths properly now, and can check if a write/read is
557     allowed, the functions called from the sandboxed environment will still work
558     as expected.
559    
560     This should resolve bug #21766.
561    
562     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
563     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
564     it (bug #16298).
565    
566     Problem is that for some reason locale fopen's locale.alias with mode "rm".
567    
568     -------------------------------------------------------
569     nosferatu root # grep fopen locale.log
570     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
571     nosferatu root #
572     --------------------------------------------------------
573    
574     I checked the source of locale, but it have fopen with mode 'r', so
575     not sure where the "rm" mode comes from. Anyhow, changed the check in
576     before_syscall_open_char() to also see mode "rm" as readonly.
577    
578     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
579    
580     Add glibc-2.3 support.
581    
582     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
583    
584     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
585     operations releated to preload, as well as only try to modify ld.so.preload
586     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
587     not using ld.so.preload. Fix to not write this instance of sandbox's pid
588     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
589    
590     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
591    
592     Changed the LD to CC for hppa.
593    
594     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
595    
596     Killed the previous changes I made.
597    
598     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
599    
600     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
601    
602     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
603    
604     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
605    
606     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
607    
608     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
609     for this fix.
610    
611     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
612    
613     sandbox_futils defined a dirname() function that was masking the same
614     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
615     '/usr/lib/portage/bi/'). Fixed function to return expected results and
616     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
617     11231.
618    
619     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
620    
621     Fix a segfault in libsandbox.c if canonicalize() was called with
622     first parameter = NULL.
623    
624     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
625    
626     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
627     cleanup() for this.
628    
629     Change cleanup() in sandbox.c not to exit with fail status if
630     the pidsfile is missing. We really should still display sandbox
631     violations if they occured.
632    
633     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
634    
635     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
636     the last sandbox running.
637    
638     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
639    
640     Major cleanups to mainly libsandbox.c again.
641    
642     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
643    
644     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
645     parties involved should please contact me so that we can fix it.
646    
647     Add opendir wrapper to libsandbox.c.
648    
649     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
650    
651     Do some more cleanups to ecanonicalize(), as it dropped filenames in
652     rare cases (after my symlink cleanups), and caused glibc to bork.
653     These fixes went into canonicalize.c.
654    
655     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
656    
657     Fix spawn_shell() and main() in sandbox.c to properly return fail
658     status.
659    
660     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
661    
662     The new canonicalize() function in libsandbox.c also resolved symlinks,
663     which caused on cleaning sandbox errors if the symlink pointed to a
664     file in the live root. Ripped out canonicalize() and realpath() from
665     glibc; removed the symlink stuff, and changed them to ecanonicalize()
666     and erealpath().
667    
668     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
669    
670     Ripped out all the wrappers, and implemented those of InstallWatch.
671     Losts of cleanups and bugfixes. Implement a execve that forces
672     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
673     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
674     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
675     parts; it now have an install target.
676    
677     Reformat the whole thing to look somewhat like the reworked sandbox.c
678     and new sandbox.h and sandbox_futils.c from:
679    
680     Brad House <brad@mainstreetsoftworks.com>.
681    
682     Additional Copyrights now due to the InstallWatch code:
683    
684     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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