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Revision 189 - (hide annotations) (download)
Thu Dec 1 09:46:17 2005 UTC (8 years, 4 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 30845 byte(s)
Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
symbol map, and all non-exported symbols are local.  Cleanup getcwd.c, as
the generic getcwd for older 2.4 kernels do not work properly anyhow, and
just makes things slower.  Some other warning 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 186 Rename configure.in to configure.ac.
16    
17 azarah 187 Fix non-versioned libc's to also prepend '__' to internal symbols by using
18     strong aliases.
19    
20 azarah 189 Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
21     symbol map, and all non-exported symbols are local. Cleanup getcwd.c, as
22     the generic getcwd for older 2.4 kernels do not work properly anyhow, and
23     just makes things slower. Some other warning fixes.
24    
25 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
26 azarah 181 sandbox_fdutils.c:
27 azarah 179
28     Detect if we on 64bit arch automatically.
29    
30 azarah 180 Update contact email. Fix quoting.
31    
32 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
33     path checking as well, and add --enable-multilib switch to configure.
34    
35 azarah 176 * sandbox-1.2.14 (2005/11/28)
36    
37 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
38 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
39 azarah 172
40     Check generic getcwd()'s return as well for validity, bug #101728.
41    
42 azarah 173 Cleanup environ variables.
43    
44 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
45     to readonly in sandbox.bashrc.
46    
47 azarah 175 Make sure we use our bashrc.
48    
49 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
50    
51     Do not pass mode to true_open and true_open64 if not needed. Should fix a
52     segfault in some cases.
53    
54 azarah 169 * sandbox-1.2.13 (2005/09/12)
55 azarah 167
56 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
57 azarah 165
58     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
59     itself.
60    
61 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
62     uClibc 'call preloaded library fini before that of app' issue ... probably
63     will not help much, but we try.
64    
65 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
66    
67     Also allow symlink() system call to operate on a symlink in a writable path
68     that points to non-writable path, bug #104711.
69    
70 azarah 160 * sandbox-1.2.12 (2005/08/05)
71    
72 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
73     sandbox.h:
74 azarah 156
75     Do not give an access violation if the access() system call do not have
76     write/read access - it does not actually modify, so we only need to return
77     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
78     bug #101433.
79    
80 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
81     and make the current directory the work directory. Also rename the variable
82     portage_tmp_dir to work_dir.
83    
84 azarah 158 Remove the tmp_dir variable - we do not need it.
85    
86 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
87    
88 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
89    
90     Still do normal log if debugging is requested.
91    
92 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
93     to only enable if equal to "1" or "yes".
94    
95 azarah 155 Add /dev/tts to write permit, bug #42809.
96    
97 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
98     sandbox_futils.c:
99    
100     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
101     in libsandbox .. bug #100309.
102    
103 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
104    
105     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
106    
107 azarah 149 * sandbox-1.2.11 (2005/07/14)
108    
109 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
110     Fix getcwd, bug #98419.
111    
112 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
113     libsandbox.c:
114 azarah 146 - Try to cleanup and make error handling/printing consistent.
115     - Remove old logs if present and conflicting with current.
116 azarah 147 - Fix compile error with previous change, and return rather then exit().
117 azarah 145
118 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
119     sandbox.h, sandbox_futils.c:
120     - Fix possible segfault in env init code.
121     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
122     write to /var/log/sandbox/, so in theory do not need all that.
123 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
124 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
125 azarah 142 - Remove unused includes and variables.
126 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
127     OUTSIDE_LIBSANDBOX is not defined.
128 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
129     printing's last line not honouring NOCOLOR.
130 azarah 138
131 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
132     libsandbox.c:
133     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
134     write to it.
135 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
136 azarah 136 - Add check_prefixes() with major cleanup on check_access().
137 azarah 137 - Cleanup init_env_entries() and check_prefixes().
138 azarah 134
139 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
140     sandbox_futils.c, libsandbox.c:
141     Remove unused 'pids file' code.
142    
143 azarah 128 * sandbox-1.2.10 (2005/07/03)
144    
145 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
146     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
147    
148 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
149     General cleanups:
150     - Remove fooling around with exit codes - we error out on presence of a log
151     anyhow.
152 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
153     appropriate there.
154 azarah 123
155 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
156     Cleanup the fail_nametoolong stuff a bit more.
157    
158 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
159 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
160    
161     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
163     in check_syscall(). Should speed things up a bit (at least for the getcwd()
164     and long path name test it goes down to under a second, and not 10+ seconds
165     like before). Also warn if we skip checking due to the canonicalized path
166     being too long.
167    
168     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
169 azarah 118 More comment/readability cleanups.
170    
171 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
172     sandbox_futils.c, libsandbox.c:
173     Some strncpy/strncat and other cleanups.
174    
175 azarah 115 * sandbox-1.2.9 (2005/06/09)
176    
177 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
178     Move symlink hack down a bit to try and minimize on the amount of lstat()
179     calls we do.
180    
181 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
182     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
183    
184 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
185     Add wrapper for access() function, bug #85413.
186    
187 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
188     Use generic getcwd() implementation from uclibc - should be more portable
189     and looks a bit cleaner.
190    
191 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
192     Make sure our true_* pointers are initialized to NULL, and that we check for
193     all references that they are valid.
194    
195 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
196     Be default we will fail if the path name we try to canonicalize is too long.
197     This however could cause issues with some things (bug #94630 and #21766), so
198     if fail_nametoolong == 0, canonicalize() will return a null length string and
199     do not fail.
200    
201 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
202     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
203     make sure we re-export the new TMPDIR environment variable.
204    
205 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
206     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
207     by Marcus D. Hanwell <cryos@gentoo.org>.
208    
209 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
210     Add /dev/console to write list, bug #38588.
211    
212 azarah 102 * sandbox-1.2.8 (2005/05/13)
213    
214 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
215 azarah 101 sandbox.h, sandbox_futils.c:
216     General cleanups.
217    
218     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
219 azarah 100 sandbox.h:
220     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
221    
222     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
223 azarah 99 sandbox.h, sandbox_futils.c:
224     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
225     to use TMPDIR if present in environment.
226    
227 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
228     Remove sandbox_log_file from main() as its no longer used.
229    
230 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
231     sandbox_futils.c:
232     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
233     if already exported when sandbox started). Fix get_sandbox_log() and new
234     get_sandbox_debug_log() to not use already exported environment variables if
235     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
236     SB_PATH_MAX fixes.
237    
238 azarah 94 * sandbox-1.2.7 (2005/05/12)
239    
240 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
241     sandbox_futils.c:
242     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
243    
244 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
245     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
246     with '(null)' in it if we did not call sandbox with absolute path.
247    
248 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
249 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
250     for the child.
251    
252     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
253 azarah 90 Remove global preload_adaptable as it is no longer used.
254    
255     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
256 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
257     to try and avoid issues like bug #91541 that causes sandbox to crash if
258     we set LD_PRELOAD sandbox side already.
259    
260 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 azarah 88 Move print_sandbox_log() up to make things neater.
262    
263     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
264 azarah 87 Remove load_preload_libs(), as its not used anymore.
265    
266 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
267 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
268    
269     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
270 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
271    
272     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
273 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
274    
275 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
276     Fix typo in code that checks if we got valid group information, causing a
277     segmentation fault, bug #91637.
278    
279 azarah 79 * sandbox-1.2.6 (2005/05/10)
280    
281 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
282     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
283     for some odd reason, bug #91541.
284    
285 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
286     Fix typo (sizeof -> strlen).
287    
288 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
289     rewrote the sbcontext caching code so it accounts for env changes since lib
290     initialization.
291    
292 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
293     We create libctest.c via configure, so no need to keep it around. Do some
294     cleanup related to libctest.c and libctest during configure.
295    
296 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
297     Add rename support of symlinks pointing to protected files/directories.
298    
299 azarah 72 * sandbox-1.2.5 (2005/05/04)
300    
301 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
302     sandbox.bashrc:
303     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
304     already set, init of the env vars fails for some reason, so do this later on,
305     and do not warn (bug #91431).
306    
307 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
308     sandbox.bashrc:
309     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
310    
311 azarah 68 * sandbox-1.2.4 (2005/05/03)
312    
313 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
314     Do not init the env entries with each call, as it creates too many calls to
315 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
316 azarah 66
317 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
318     Add /dev/pty to default write list. Noticed by Morfic.
319    
320 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
321     sandbox.h:
322     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
323     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
324    
325 azarah 59 * sandbox-1.2.3 (2005/04/29)
326    
327 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
328     Do not check for (*&#$(* CXX or F77.
329    
330 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
331     Do not append '/' to pathname in filter_path() if it already ends with it.
332    
333 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
334     With az's help, clean up autotools to work with cross-compiling.
335    
336 azarah 59 * sandbox-1.2.2 (2005/04/28)
337 azarah 48
338 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
339     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
340     have issues; bug #90592.
341    
342 azarah 59 * sandbox-1.2.1 (2005/04/23)
343 azarah 44
344 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
345     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
346     Make sure all functions used in libsandbox.c is declared static. Define
347     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
348     linking with its object. Hopefully this will fix bug #90153.
349    
350 azarah 59 * sandbox-1.2 (2005/04/23)
351 azarah 46
352 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
353     Allow lchown a symlink in write-allowed path pointing to write-denied
354     target.
355    
356 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
357     Also show resolved symlink names in the log.
358    
359 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
360     Seems -nostdlib was the problem with the constructor/destructor - remove it
361     from Makefile.am, and change the constructor/destructor names again.
362    
363 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
364     Also rename the _init() and _fini() declarations.
365    
366 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
367     Fixup the constructor/destructor function names again (they should be _init()
368     and _fini() it seems, and not being called caused sandbox_lib_path to be
369     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
370     Add both the path in given SANDBOX_x variable, as well as its symlink
371     resolved path in init_env_entries(). Modify filter_path() to be able to
372     resolve paths without resolving symlinks, as well as to be able to resolve
373     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
374     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
375     for bug #31019 cause access violations if we try to remove a symlink that is
376     not in protected path, but points to a protected path. Fix a memory leak in
377     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
378     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
379     (pid_string was uninitialized). General syntax cleanups.
380    
381 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
382     infamous "pids file is not a regular file" w/out newline bug.
383    
384 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
385     Correct libc_version path detection, since it was screwing up if libdir !=
386     "/lib/".
387    
388     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
389 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
390    
391 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
392 azarah 31 Fix symbols.in not added to dist.
393    
394 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
395 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
396     White space fixes.
397    
398 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
399 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
400 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
401     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
402     for glibc and other libc's that use this. Update libsandbox.c to use these
403     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
404     process unset it.
405    
406 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
407 ferringb 28 killed off _init and _fini in favor of
408     void __attribute__ ((constructor)) init_func and
409     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
410    
411 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
412     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
413     having the hick-ups.
414    
415 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
416     Makefile.am: Fixed compilation.
417    
418 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
419     Gutted the bugger so it stops checking for a c++ and fortran compiler.
420     Do *not* regenerate aclocal.m4 for making a release until a better
421     solution is created.
422    
423 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
424     Removal of more hardcoded paths.
425    
426 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
427     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
428    
429     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
430 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
431     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
432     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
433     To get to a point of testing, automake && autoconf; created requisite files w/
434     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
435     /lib and /usr/lib/portage/bin.
436    
437 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
438     closing out bug #70225, potential overflow of the sandbox_pids_file var.
439    
440     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
441     (think it was at least) allows intermixing of code and data segments. bug #70351
442     should be fixed by this.
443    
444     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
445     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
446    
447     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
448     Seth Robertson that tracked down all adjuct flags for read operations that
449     do not invoke a write operation.
450    
451     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
452     Another fix from jstubbs regarding a free() on a stack variable for the
453     environment -- tracking now prevents extraneous free()'s segfault.
454    
455     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
456     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
457     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
458     Also remove the errno = ESUCCESS settings as documentation points out that
459     a library isn't allowed to do that.
460    
461     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
462     file_security_check() function to check random potential exploits on files
463     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
464     the 'system-crippling' exploits (bug 21923) and catches a few other
465     potential problems.
466    
467     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
468     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
469    
470     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
471     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
472     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
473    
474     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
475     Fix permissions and group of pids file and logs. Permissions should be 0664
476     and group should be 'portage'. Bug #34260.
477    
478     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
479     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
480     to the real execve (in our execve wrapper). Seems that on some arches (sparc
481     among others) do not allow us to tamper with the readonly copy passed to
482     execve, so pass our own copy of the environment. Bug #42290.
483    
484     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
485     Changed tail to head and added a notice about duration of glibc check.
486    
487     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
488     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
489     as there isn't a guarentee that it is dynamic.
490    
491     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
492     If 'file' passed to before_syscall(const char *func, const char *file) is
493     invalid, we should set errno to ENOENT, and not EINVAL. This should
494     close bug #32238.
495    
496     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
497     Fix a bug that occurs mainly on 64bit arch, where the file passed to
498     the functions we wrap, is invalid, and then cause canonicalize to pass
499     garbage to before_syscall(), thanks to great detective work from
500     Andrea Luzzardi <al@sig11.org> (bug #29846).
501    
502     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
503     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
504    
505     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
506     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
507     only checked the destination patch, and not the source, so we could move
508     a protected file to a unprotected directory, and then delete/modify it.
509     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
510    
511     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
512     Added python2.3 to the predict section/variable.
513    
514     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
515     sandbox.h, sandbox_futils.c :
516     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
517     it is not set, it will revert to its old value.
518    
519     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
520     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
521     rather than failing with a violation, bug #29748.
522    
523     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
524     Fix canonicalize() to ignore calls with path = "".
525    
526     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
527     sandbox_futils.c, canonicalize.c :
528     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
529     call handled strings larger than PATH_MAX (bug #21766). It however does not
530     work the same on 2.4 kernels.
531    
532     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
533     do not need the system call. We use the default getcwd() function via a
534     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
535     means the current directory was removed, OR that the the system call for
536     getcwd failed (curious is that it do not fail and return NULL or set
537     errno, but rather just truncate the retured directory - usually from the
538     start), and if so, we use the generic getcwd() function (__egetcwd). Note
539     that we do not use the generic version all the time, as it calls lstat()
540     a great number of times, and performance degrade much.
541    
542     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
543     libsandbox.c :
544     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
545    
546     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
547     create-localdecls :
548     When checking path names of files accessed, we need to canonicalize it, else
549     it may be a symlink in a 'write allowed' directory pointing to a file in a
550     directory we should not have write access to.
551    
552     With something like coreutils-5.0, we have two problems:
553     1) One of the tests checks if getcwd() can return a path longer than
554     PATH_MAX. This test then tries to create a dir which even while
555     created local (mkdir("conftest2")), it ends up being resolved with
556     a name that is much larger than PATH_MAX. The problem now is that
557     canonicalize() have undefined behaviour when the path was too long
558     (returned wrongly truncated paths, etc), and pass the wrong path to
559     before_syscall() (causing the bogus sandbox violations).
560     2) The ecanonicalize() function we used, along with the canonicalize()
561     function did not support longer than PATH_MAX. This is partly a
562     cause for 1), but the error checking (rather lack of it) of calls
563     to erealpath() in canonicalize() was the prime reason for 1).
564    
565     As we do not use this canonicalized name to call the function, we resolve this
566     by fixing canonicalize() to do better error checking, and ecanonicalize() as
567     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
568     While they will resolve paths properly now, and can check if a write/read is
569     allowed, the functions called from the sandboxed environment will still work
570     as expected.
571    
572     This should resolve bug #21766.
573    
574     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
575     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
576     it (bug #16298).
577    
578     Problem is that for some reason locale fopen's locale.alias with mode "rm".
579    
580     -------------------------------------------------------
581     nosferatu root # grep fopen locale.log
582     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
583     nosferatu root #
584     --------------------------------------------------------
585    
586     I checked the source of locale, but it have fopen with mode 'r', so
587     not sure where the "rm" mode comes from. Anyhow, changed the check in
588     before_syscall_open_char() to also see mode "rm" as readonly.
589    
590     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
591    
592     Add glibc-2.3 support.
593    
594     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
595    
596     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
597     operations releated to preload, as well as only try to modify ld.so.preload
598     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
599     not using ld.so.preload. Fix to not write this instance of sandbox's pid
600     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
601    
602     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
603    
604     Changed the LD to CC for hppa.
605    
606     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
607    
608     Killed the previous changes I made.
609    
610     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
611    
612     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
613    
614     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
615    
616     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
617    
618     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
619    
620     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
621     for this fix.
622    
623     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
624    
625     sandbox_futils defined a dirname() function that was masking the same
626     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
627     '/usr/lib/portage/bi/'). Fixed function to return expected results and
628     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
629     11231.
630    
631     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
632    
633     Fix a segfault in libsandbox.c if canonicalize() was called with
634     first parameter = NULL.
635    
636     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
637    
638     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
639     cleanup() for this.
640    
641     Change cleanup() in sandbox.c not to exit with fail status if
642     the pidsfile is missing. We really should still display sandbox
643     violations if they occured.
644    
645     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
646    
647     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
648     the last sandbox running.
649    
650     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
651    
652     Major cleanups to mainly libsandbox.c again.
653    
654     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
655    
656     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
657     parties involved should please contact me so that we can fix it.
658    
659     Add opendir wrapper to libsandbox.c.
660    
661     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
662    
663     Do some more cleanups to ecanonicalize(), as it dropped filenames in
664     rare cases (after my symlink cleanups), and caused glibc to bork.
665     These fixes went into canonicalize.c.
666    
667     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
668    
669     Fix spawn_shell() and main() in sandbox.c to properly return fail
670     status.
671    
672     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
673    
674     The new canonicalize() function in libsandbox.c also resolved symlinks,
675     which caused on cleaning sandbox errors if the symlink pointed to a
676     file in the live root. Ripped out canonicalize() and realpath() from
677     glibc; removed the symlink stuff, and changed them to ecanonicalize()
678     and erealpath().
679    
680     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
681    
682     Ripped out all the wrappers, and implemented those of InstallWatch.
683     Losts of cleanups and bugfixes. Implement a execve that forces
684     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
685     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
686     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
687     parts; it now have an install target.
688    
689     Reformat the whole thing to look somewhat like the reworked sandbox.c
690     and new sandbox.h and sandbox_futils.c from:
691    
692     Brad House <brad@mainstreetsoftworks.com>.
693    
694     Additional Copyrights now due to the InstallWatch code:
695    
696     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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