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Revision 184 - (hide annotations) (download)
Wed Nov 30 23:11:34 2005 UTC (9 years, 4 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 30423 byte(s)
Only check SANDBOX_ACTIVE, and not its value.  More BASH_ENV fixes.
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 azarah 184 src/libsandbox.c, src/getcwd.c, src/sandbox.c, data/sandbox.bashrc:
9 azarah 183
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 azarah 184 Only check SANDBOX_ACTIVE, and not its value. More BASH_ENV fixes.
14    
15 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
16 azarah 181 sandbox_fdutils.c:
17 azarah 179
18     Detect if we on 64bit arch automatically.
19    
20 azarah 180 Update contact email. Fix quoting.
21    
22 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
23     path checking as well, and add --enable-multilib switch to configure.
24    
25 azarah 176 * sandbox-1.2.14 (2005/11/28)
26    
27 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
28 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
29 azarah 172
30     Check generic getcwd()'s return as well for validity, bug #101728.
31    
32 azarah 173 Cleanup environ variables.
33    
34 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
35     to readonly in sandbox.bashrc.
36    
37 azarah 175 Make sure we use our bashrc.
38    
39 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
40    
41     Do not pass mode to true_open and true_open64 if not needed. Should fix a
42     segfault in some cases.
43    
44 azarah 169 * sandbox-1.2.13 (2005/09/12)
45 azarah 167
46 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
47 azarah 165
48     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
49     itself.
50    
51 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
52     uClibc 'call preloaded library fini before that of app' issue ... probably
53     will not help much, but we try.
54    
55 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
56    
57     Also allow symlink() system call to operate on a symlink in a writable path
58     that points to non-writable path, bug #104711.
59    
60 azarah 160 * sandbox-1.2.12 (2005/08/05)
61    
62 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
63     sandbox.h:
64 azarah 156
65     Do not give an access violation if the access() system call do not have
66     write/read access - it does not actually modify, so we only need to return
67     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
68     bug #101433.
69    
70 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
71     and make the current directory the work directory. Also rename the variable
72     portage_tmp_dir to work_dir.
73    
74 azarah 158 Remove the tmp_dir variable - we do not need it.
75    
76 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
77    
78 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
79    
80     Still do normal log if debugging is requested.
81    
82 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
83     to only enable if equal to "1" or "yes".
84    
85 azarah 155 Add /dev/tts to write permit, bug #42809.
86    
87 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
88     sandbox_futils.c:
89    
90     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
91     in libsandbox .. bug #100309.
92    
93 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
94    
95     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
96    
97 azarah 149 * sandbox-1.2.11 (2005/07/14)
98    
99 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
100     Fix getcwd, bug #98419.
101    
102 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
103     libsandbox.c:
104 azarah 146 - Try to cleanup and make error handling/printing consistent.
105     - Remove old logs if present and conflicting with current.
106 azarah 147 - Fix compile error with previous change, and return rather then exit().
107 azarah 145
108 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
109     sandbox.h, sandbox_futils.c:
110     - Fix possible segfault in env init code.
111     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
112     write to /var/log/sandbox/, so in theory do not need all that.
113 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
114 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
115 azarah 142 - Remove unused includes and variables.
116 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
117     OUTSIDE_LIBSANDBOX is not defined.
118 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
119     printing's last line not honouring NOCOLOR.
120 azarah 138
121 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
122     libsandbox.c:
123     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
124     write to it.
125 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
126 azarah 136 - Add check_prefixes() with major cleanup on check_access().
127 azarah 137 - Cleanup init_env_entries() and check_prefixes().
128 azarah 134
129 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
130     sandbox_futils.c, libsandbox.c:
131     Remove unused 'pids file' code.
132    
133 azarah 128 * sandbox-1.2.10 (2005/07/03)
134    
135 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
136     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
137    
138 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
139     General cleanups:
140     - Remove fooling around with exit codes - we error out on presence of a log
141     anyhow.
142 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
143     appropriate there.
144 azarah 123
145 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
146     Cleanup the fail_nametoolong stuff a bit more.
147    
148 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
149 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
150    
151     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
152 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
153     in check_syscall(). Should speed things up a bit (at least for the getcwd()
154     and long path name test it goes down to under a second, and not 10+ seconds
155     like before). Also warn if we skip checking due to the canonicalized path
156     being too long.
157    
158     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
159 azarah 118 More comment/readability cleanups.
160    
161 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
162     sandbox_futils.c, libsandbox.c:
163     Some strncpy/strncat and other cleanups.
164    
165 azarah 115 * sandbox-1.2.9 (2005/06/09)
166    
167 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
168     Move symlink hack down a bit to try and minimize on the amount of lstat()
169     calls we do.
170    
171 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
172     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
173    
174 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
175     Add wrapper for access() function, bug #85413.
176    
177 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
178     Use generic getcwd() implementation from uclibc - should be more portable
179     and looks a bit cleaner.
180    
181 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
182     Make sure our true_* pointers are initialized to NULL, and that we check for
183     all references that they are valid.
184    
185 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
186     Be default we will fail if the path name we try to canonicalize is too long.
187     This however could cause issues with some things (bug #94630 and #21766), so
188     if fail_nametoolong == 0, canonicalize() will return a null length string and
189     do not fail.
190    
191 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
192     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
193     make sure we re-export the new TMPDIR environment variable.
194    
195 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
196     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
197     by Marcus D. Hanwell <cryos@gentoo.org>.
198    
199 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
200     Add /dev/console to write list, bug #38588.
201    
202 azarah 102 * sandbox-1.2.8 (2005/05/13)
203    
204 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
205 azarah 101 sandbox.h, sandbox_futils.c:
206     General cleanups.
207    
208     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
209 azarah 100 sandbox.h:
210     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
211    
212     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
213 azarah 99 sandbox.h, sandbox_futils.c:
214     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
215     to use TMPDIR if present in environment.
216    
217 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
218     Remove sandbox_log_file from main() as its no longer used.
219    
220 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
221     sandbox_futils.c:
222     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
223     if already exported when sandbox started). Fix get_sandbox_log() and new
224     get_sandbox_debug_log() to not use already exported environment variables if
225     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
226     SB_PATH_MAX fixes.
227    
228 azarah 94 * sandbox-1.2.7 (2005/05/12)
229    
230 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
231     sandbox_futils.c:
232     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
233    
234 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
235     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
236     with '(null)' in it if we did not call sandbox with absolute path.
237    
238 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
239 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
240     for the child.
241    
242     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
243 azarah 90 Remove global preload_adaptable as it is no longer used.
244    
245     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
246 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
247     to try and avoid issues like bug #91541 that causes sandbox to crash if
248     we set LD_PRELOAD sandbox side already.
249    
250 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
251 azarah 88 Move print_sandbox_log() up to make things neater.
252    
253     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
254 azarah 87 Remove load_preload_libs(), as its not used anymore.
255    
256 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
257 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
258    
259     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
260 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
261    
262     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
263 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
264    
265 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
266     Fix typo in code that checks if we got valid group information, causing a
267     segmentation fault, bug #91637.
268    
269 azarah 79 * sandbox-1.2.6 (2005/05/10)
270    
271 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
272     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
273     for some odd reason, bug #91541.
274    
275 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
276     Fix typo (sizeof -> strlen).
277    
278 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
279     rewrote the sbcontext caching code so it accounts for env changes since lib
280     initialization.
281    
282 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
283     We create libctest.c via configure, so no need to keep it around. Do some
284     cleanup related to libctest.c and libctest during configure.
285    
286 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
287     Add rename support of symlinks pointing to protected files/directories.
288    
289 azarah 72 * sandbox-1.2.5 (2005/05/04)
290    
291 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
292     sandbox.bashrc:
293     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
294     already set, init of the env vars fails for some reason, so do this later on,
295     and do not warn (bug #91431).
296    
297 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
298     sandbox.bashrc:
299     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
300    
301 azarah 68 * sandbox-1.2.4 (2005/05/03)
302    
303 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
304     Do not init the env entries with each call, as it creates too many calls to
305 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
306 azarah 66
307 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
308     Add /dev/pty to default write list. Noticed by Morfic.
309    
310 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
311     sandbox.h:
312     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
313     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
314    
315 azarah 59 * sandbox-1.2.3 (2005/04/29)
316    
317 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
318     Do not check for (*&#$(* CXX or F77.
319    
320 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
321     Do not append '/' to pathname in filter_path() if it already ends with it.
322    
323 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
324     With az's help, clean up autotools to work with cross-compiling.
325    
326 azarah 59 * sandbox-1.2.2 (2005/04/28)
327 azarah 48
328 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
329     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
330     have issues; bug #90592.
331    
332 azarah 59 * sandbox-1.2.1 (2005/04/23)
333 azarah 44
334 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
335     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
336     Make sure all functions used in libsandbox.c is declared static. Define
337     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
338     linking with its object. Hopefully this will fix bug #90153.
339    
340 azarah 59 * sandbox-1.2 (2005/04/23)
341 azarah 46
342 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
343     Allow lchown a symlink in write-allowed path pointing to write-denied
344     target.
345    
346 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
347     Also show resolved symlink names in the log.
348    
349 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
350     Seems -nostdlib was the problem with the constructor/destructor - remove it
351     from Makefile.am, and change the constructor/destructor names again.
352    
353 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
354     Also rename the _init() and _fini() declarations.
355    
356 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
357     Fixup the constructor/destructor function names again (they should be _init()
358     and _fini() it seems, and not being called caused sandbox_lib_path to be
359     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
360     Add both the path in given SANDBOX_x variable, as well as its symlink
361     resolved path in init_env_entries(). Modify filter_path() to be able to
362     resolve paths without resolving symlinks, as well as to be able to resolve
363     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
364     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
365     for bug #31019 cause access violations if we try to remove a symlink that is
366     not in protected path, but points to a protected path. Fix a memory leak in
367     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
368     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
369     (pid_string was uninitialized). General syntax cleanups.
370    
371 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
372     infamous "pids file is not a regular file" w/out newline bug.
373    
374 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
375     Correct libc_version path detection, since it was screwing up if libdir !=
376     "/lib/".
377    
378     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
379 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
380    
381 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
382 azarah 31 Fix symbols.in not added to dist.
383    
384 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
385 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
386     White space fixes.
387    
388 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
389 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
390 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
391     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
392     for glibc and other libc's that use this. Update libsandbox.c to use these
393     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
394     process unset it.
395    
396 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
397 ferringb 28 killed off _init and _fini in favor of
398     void __attribute__ ((constructor)) init_func and
399     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
400    
401 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
402     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
403     having the hick-ups.
404    
405 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
406     Makefile.am: Fixed compilation.
407    
408 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
409     Gutted the bugger so it stops checking for a c++ and fortran compiler.
410     Do *not* regenerate aclocal.m4 for making a release until a better
411     solution is created.
412    
413 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
414     Removal of more hardcoded paths.
415    
416 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
417     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
418    
419     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
420 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
421     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
422     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
423     To get to a point of testing, automake && autoconf; created requisite files w/
424     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
425     /lib and /usr/lib/portage/bin.
426    
427 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
428     closing out bug #70225, potential overflow of the sandbox_pids_file var.
429    
430     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
431     (think it was at least) allows intermixing of code and data segments. bug #70351
432     should be fixed by this.
433    
434     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
435     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
436    
437     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
438     Seth Robertson that tracked down all adjuct flags for read operations that
439     do not invoke a write operation.
440    
441     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
442     Another fix from jstubbs regarding a free() on a stack variable for the
443     environment -- tracking now prevents extraneous free()'s segfault.
444    
445     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
446     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
447     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
448     Also remove the errno = ESUCCESS settings as documentation points out that
449     a library isn't allowed to do that.
450    
451     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
452     file_security_check() function to check random potential exploits on files
453     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
454     the 'system-crippling' exploits (bug 21923) and catches a few other
455     potential problems.
456    
457     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
458     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
459    
460     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
461     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
462     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
463    
464     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
465     Fix permissions and group of pids file and logs. Permissions should be 0664
466     and group should be 'portage'. Bug #34260.
467    
468     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
469     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
470     to the real execve (in our execve wrapper). Seems that on some arches (sparc
471     among others) do not allow us to tamper with the readonly copy passed to
472     execve, so pass our own copy of the environment. Bug #42290.
473    
474     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
475     Changed tail to head and added a notice about duration of glibc check.
476    
477     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
478     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
479     as there isn't a guarentee that it is dynamic.
480    
481     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
482     If 'file' passed to before_syscall(const char *func, const char *file) is
483     invalid, we should set errno to ENOENT, and not EINVAL. This should
484     close bug #32238.
485    
486     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487     Fix a bug that occurs mainly on 64bit arch, where the file passed to
488     the functions we wrap, is invalid, and then cause canonicalize to pass
489     garbage to before_syscall(), thanks to great detective work from
490     Andrea Luzzardi <al@sig11.org> (bug #29846).
491    
492     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
493     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
494    
495     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
496     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
497     only checked the destination patch, and not the source, so we could move
498     a protected file to a unprotected directory, and then delete/modify it.
499     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
500    
501     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
502     Added python2.3 to the predict section/variable.
503    
504     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
505     sandbox.h, sandbox_futils.c :
506     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
507     it is not set, it will revert to its old value.
508    
509     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
510     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
511     rather than failing with a violation, bug #29748.
512    
513     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
514     Fix canonicalize() to ignore calls with path = "".
515    
516     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
517     sandbox_futils.c, canonicalize.c :
518     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
519     call handled strings larger than PATH_MAX (bug #21766). It however does not
520     work the same on 2.4 kernels.
521    
522     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
523     do not need the system call. We use the default getcwd() function via a
524     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
525     means the current directory was removed, OR that the the system call for
526     getcwd failed (curious is that it do not fail and return NULL or set
527     errno, but rather just truncate the retured directory - usually from the
528     start), and if so, we use the generic getcwd() function (__egetcwd). Note
529     that we do not use the generic version all the time, as it calls lstat()
530     a great number of times, and performance degrade much.
531    
532     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
533     libsandbox.c :
534     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
535    
536     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
537     create-localdecls :
538     When checking path names of files accessed, we need to canonicalize it, else
539     it may be a symlink in a 'write allowed' directory pointing to a file in a
540     directory we should not have write access to.
541    
542     With something like coreutils-5.0, we have two problems:
543     1) One of the tests checks if getcwd() can return a path longer than
544     PATH_MAX. This test then tries to create a dir which even while
545     created local (mkdir("conftest2")), it ends up being resolved with
546     a name that is much larger than PATH_MAX. The problem now is that
547     canonicalize() have undefined behaviour when the path was too long
548     (returned wrongly truncated paths, etc), and pass the wrong path to
549     before_syscall() (causing the bogus sandbox violations).
550     2) The ecanonicalize() function we used, along with the canonicalize()
551     function did not support longer than PATH_MAX. This is partly a
552     cause for 1), but the error checking (rather lack of it) of calls
553     to erealpath() in canonicalize() was the prime reason for 1).
554    
555     As we do not use this canonicalized name to call the function, we resolve this
556     by fixing canonicalize() to do better error checking, and ecanonicalize() as
557     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
558     While they will resolve paths properly now, and can check if a write/read is
559     allowed, the functions called from the sandboxed environment will still work
560     as expected.
561    
562     This should resolve bug #21766.
563    
564     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
565     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
566     it (bug #16298).
567    
568     Problem is that for some reason locale fopen's locale.alias with mode "rm".
569    
570     -------------------------------------------------------
571     nosferatu root # grep fopen locale.log
572     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
573     nosferatu root #
574     --------------------------------------------------------
575    
576     I checked the source of locale, but it have fopen with mode 'r', so
577     not sure where the "rm" mode comes from. Anyhow, changed the check in
578     before_syscall_open_char() to also see mode "rm" as readonly.
579    
580     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
581    
582     Add glibc-2.3 support.
583    
584     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
585    
586     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
587     operations releated to preload, as well as only try to modify ld.so.preload
588     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
589     not using ld.so.preload. Fix to not write this instance of sandbox's pid
590     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
591    
592     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
593    
594     Changed the LD to CC for hppa.
595    
596     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
597    
598     Killed the previous changes I made.
599    
600     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
601    
602     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
603    
604     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
605    
606     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
607    
608     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
609    
610     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
611     for this fix.
612    
613     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
614    
615     sandbox_futils defined a dirname() function that was masking the same
616     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
617     '/usr/lib/portage/bi/'). Fixed function to return expected results and
618     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
619     11231.
620    
621     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
622    
623     Fix a segfault in libsandbox.c if canonicalize() was called with
624     first parameter = NULL.
625    
626     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
627    
628     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
629     cleanup() for this.
630    
631     Change cleanup() in sandbox.c not to exit with fail status if
632     the pidsfile is missing. We really should still display sandbox
633     violations if they occured.
634    
635     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
636    
637     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
638     the last sandbox running.
639    
640     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
641    
642     Major cleanups to mainly libsandbox.c again.
643    
644     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
645    
646     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
647     parties involved should please contact me so that we can fix it.
648    
649     Add opendir wrapper to libsandbox.c.
650    
651     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
652    
653     Do some more cleanups to ecanonicalize(), as it dropped filenames in
654     rare cases (after my symlink cleanups), and caused glibc to bork.
655     These fixes went into canonicalize.c.
656    
657     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
658    
659     Fix spawn_shell() and main() in sandbox.c to properly return fail
660     status.
661    
662     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
663    
664     The new canonicalize() function in libsandbox.c also resolved symlinks,
665     which caused on cleaning sandbox errors if the symlink pointed to a
666     file in the live root. Ripped out canonicalize() and realpath() from
667     glibc; removed the symlink stuff, and changed them to ecanonicalize()
668     and erealpath().
669    
670     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
671    
672     Ripped out all the wrappers, and implemented those of InstallWatch.
673     Losts of cleanups and bugfixes. Implement a execve that forces
674     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
675     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
676     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
677     parts; it now have an install target.
678    
679     Reformat the whole thing to look somewhat like the reworked sandbox.c
680     and new sandbox.h and sandbox_futils.c from:
681    
682     Brad House <brad@mainstreetsoftworks.com>.
683    
684     Additional Copyrights now due to the InstallWatch code:
685    
686     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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