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Revision 192 - (hide annotations) (download)
Thu Dec 1 10:45:43 2005 UTC (8 years, 9 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31020 byte(s)
Rename filter_path() to resolve_path() and other renames for clarity.
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 190 Rename src/symbols.in to src/symbols.h.in.
26    
27 azarah 191 Cleanup local defines for egetcwd() and erealpath().
28    
29 azarah 192 Rename filter_path() to resolve_path() and other renames for clarity.
30    
31 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
32 azarah 181 sandbox_fdutils.c:
33 azarah 179
34     Detect if we on 64bit arch automatically.
35    
36 azarah 180 Update contact email. Fix quoting.
37    
38 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
39     path checking as well, and add --enable-multilib switch to configure.
40    
41 azarah 176 * sandbox-1.2.14 (2005/11/28)
42    
43 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
44 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
45 azarah 172
46     Check generic getcwd()'s return as well for validity, bug #101728.
47    
48 azarah 173 Cleanup environ variables.
49    
50 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
51     to readonly in sandbox.bashrc.
52    
53 azarah 175 Make sure we use our bashrc.
54    
55 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
56    
57     Do not pass mode to true_open and true_open64 if not needed. Should fix a
58     segfault in some cases.
59    
60 azarah 169 * sandbox-1.2.13 (2005/09/12)
61 azarah 167
62 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
63 azarah 165
64     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
65     itself.
66    
67 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
68     uClibc 'call preloaded library fini before that of app' issue ... probably
69     will not help much, but we try.
70    
71 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
72    
73     Also allow symlink() system call to operate on a symlink in a writable path
74     that points to non-writable path, bug #104711.
75    
76 azarah 160 * sandbox-1.2.12 (2005/08/05)
77    
78 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
79     sandbox.h:
80 azarah 156
81     Do not give an access violation if the access() system call do not have
82     write/read access - it does not actually modify, so we only need to return
83     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
84     bug #101433.
85    
86 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
87     and make the current directory the work directory. Also rename the variable
88     portage_tmp_dir to work_dir.
89    
90 azarah 158 Remove the tmp_dir variable - we do not need it.
91    
92 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
93    
94 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
95    
96     Still do normal log if debugging is requested.
97    
98 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
99     to only enable if equal to "1" or "yes".
100    
101 azarah 155 Add /dev/tts to write permit, bug #42809.
102    
103 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
104     sandbox_futils.c:
105    
106     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
107     in libsandbox .. bug #100309.
108    
109 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
110    
111     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
112    
113 azarah 149 * sandbox-1.2.11 (2005/07/14)
114    
115 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
116     Fix getcwd, bug #98419.
117    
118 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
119     libsandbox.c:
120 azarah 146 - Try to cleanup and make error handling/printing consistent.
121     - Remove old logs if present and conflicting with current.
122 azarah 147 - Fix compile error with previous change, and return rather then exit().
123 azarah 145
124 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
125     sandbox.h, sandbox_futils.c:
126     - Fix possible segfault in env init code.
127     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
128     write to /var/log/sandbox/, so in theory do not need all that.
129 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
130 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
131 azarah 142 - Remove unused includes and variables.
132 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
133     OUTSIDE_LIBSANDBOX is not defined.
134 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
135     printing's last line not honouring NOCOLOR.
136 azarah 138
137 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
138     libsandbox.c:
139     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
140     write to it.
141 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
142 azarah 136 - Add check_prefixes() with major cleanup on check_access().
143 azarah 137 - Cleanup init_env_entries() and check_prefixes().
144 azarah 134
145 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
146     sandbox_futils.c, libsandbox.c:
147     Remove unused 'pids file' code.
148    
149 azarah 128 * sandbox-1.2.10 (2005/07/03)
150    
151 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
152     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
153    
154 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
155     General cleanups:
156     - Remove fooling around with exit codes - we error out on presence of a log
157     anyhow.
158 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
159     appropriate there.
160 azarah 123
161 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162     Cleanup the fail_nametoolong stuff a bit more.
163    
164 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
165 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
166    
167     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
168 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
169     in check_syscall(). Should speed things up a bit (at least for the getcwd()
170     and long path name test it goes down to under a second, and not 10+ seconds
171     like before). Also warn if we skip checking due to the canonicalized path
172     being too long.
173    
174     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
175 azarah 118 More comment/readability cleanups.
176    
177 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
178     sandbox_futils.c, libsandbox.c:
179     Some strncpy/strncat and other cleanups.
180    
181 azarah 115 * sandbox-1.2.9 (2005/06/09)
182    
183 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
184     Move symlink hack down a bit to try and minimize on the amount of lstat()
185     calls we do.
186    
187 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
188     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
189    
190 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
191     Add wrapper for access() function, bug #85413.
192    
193 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
194     Use generic getcwd() implementation from uclibc - should be more portable
195     and looks a bit cleaner.
196    
197 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
198     Make sure our true_* pointers are initialized to NULL, and that we check for
199     all references that they are valid.
200    
201 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
202     Be default we will fail if the path name we try to canonicalize is too long.
203     This however could cause issues with some things (bug #94630 and #21766), so
204     if fail_nametoolong == 0, canonicalize() will return a null length string and
205     do not fail.
206    
207 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
208     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
209     make sure we re-export the new TMPDIR environment variable.
210    
211 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
212     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
213     by Marcus D. Hanwell <cryos@gentoo.org>.
214    
215 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216     Add /dev/console to write list, bug #38588.
217    
218 azarah 102 * sandbox-1.2.8 (2005/05/13)
219    
220 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
221 azarah 101 sandbox.h, sandbox_futils.c:
222     General cleanups.
223    
224     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
225 azarah 100 sandbox.h:
226     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
227    
228     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
229 azarah 99 sandbox.h, sandbox_futils.c:
230     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
231     to use TMPDIR if present in environment.
232    
233 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
234     Remove sandbox_log_file from main() as its no longer used.
235    
236 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
237     sandbox_futils.c:
238     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
239     if already exported when sandbox started). Fix get_sandbox_log() and new
240     get_sandbox_debug_log() to not use already exported environment variables if
241     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
242     SB_PATH_MAX fixes.
243    
244 azarah 94 * sandbox-1.2.7 (2005/05/12)
245    
246 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
247     sandbox_futils.c:
248     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
249    
250 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
251     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
252     with '(null)' in it if we did not call sandbox with absolute path.
253    
254 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
255 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
256     for the child.
257    
258     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
259 azarah 90 Remove global preload_adaptable as it is no longer used.
260    
261     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
262 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
263     to try and avoid issues like bug #91541 that causes sandbox to crash if
264     we set LD_PRELOAD sandbox side already.
265    
266 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
267 azarah 88 Move print_sandbox_log() up to make things neater.
268    
269     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
270 azarah 87 Remove load_preload_libs(), as its not used anymore.
271    
272 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
273 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
274    
275     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
276 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
277    
278     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
279 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
280    
281 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
282     Fix typo in code that checks if we got valid group information, causing a
283     segmentation fault, bug #91637.
284    
285 azarah 79 * sandbox-1.2.6 (2005/05/10)
286    
287 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
288     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
289     for some odd reason, bug #91541.
290    
291 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
292     Fix typo (sizeof -> strlen).
293    
294 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
295     rewrote the sbcontext caching code so it accounts for env changes since lib
296     initialization.
297    
298 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
299     We create libctest.c via configure, so no need to keep it around. Do some
300     cleanup related to libctest.c and libctest during configure.
301    
302 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
303     Add rename support of symlinks pointing to protected files/directories.
304    
305 azarah 72 * sandbox-1.2.5 (2005/05/04)
306    
307 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
308     sandbox.bashrc:
309     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
310     already set, init of the env vars fails for some reason, so do this later on,
311     and do not warn (bug #91431).
312    
313 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
314     sandbox.bashrc:
315     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
316    
317 azarah 68 * sandbox-1.2.4 (2005/05/03)
318    
319 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
320     Do not init the env entries with each call, as it creates too many calls to
321 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
322 azarah 66
323 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
324     Add /dev/pty to default write list. Noticed by Morfic.
325    
326 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
327     sandbox.h:
328     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
329     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
330    
331 azarah 59 * sandbox-1.2.3 (2005/04/29)
332    
333 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
334     Do not check for (*&#$(* CXX or F77.
335    
336 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
337     Do not append '/' to pathname in filter_path() if it already ends with it.
338    
339 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
340     With az's help, clean up autotools to work with cross-compiling.
341    
342 azarah 59 * sandbox-1.2.2 (2005/04/28)
343 azarah 48
344 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
345     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
346     have issues; bug #90592.
347    
348 azarah 59 * sandbox-1.2.1 (2005/04/23)
349 azarah 44
350 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
351     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
352     Make sure all functions used in libsandbox.c is declared static. Define
353     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
354     linking with its object. Hopefully this will fix bug #90153.
355    
356 azarah 59 * sandbox-1.2 (2005/04/23)
357 azarah 46
358 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
359     Allow lchown a symlink in write-allowed path pointing to write-denied
360     target.
361    
362 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
363     Also show resolved symlink names in the log.
364    
365 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
366     Seems -nostdlib was the problem with the constructor/destructor - remove it
367     from Makefile.am, and change the constructor/destructor names again.
368    
369 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
370     Also rename the _init() and _fini() declarations.
371    
372 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
373     Fixup the constructor/destructor function names again (they should be _init()
374     and _fini() it seems, and not being called caused sandbox_lib_path to be
375     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
376     Add both the path in given SANDBOX_x variable, as well as its symlink
377     resolved path in init_env_entries(). Modify filter_path() to be able to
378     resolve paths without resolving symlinks, as well as to be able to resolve
379     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
380     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
381     for bug #31019 cause access violations if we try to remove a symlink that is
382     not in protected path, but points to a protected path. Fix a memory leak in
383     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
384     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
385     (pid_string was uninitialized). General syntax cleanups.
386    
387 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
388     infamous "pids file is not a regular file" w/out newline bug.
389    
390 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
391     Correct libc_version path detection, since it was screwing up if libdir !=
392     "/lib/".
393    
394     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
395 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
396    
397 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
398 azarah 31 Fix symbols.in not added to dist.
399    
400 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
401 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
402     White space fixes.
403    
404 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
405 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
406 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
407     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
408     for glibc and other libc's that use this. Update libsandbox.c to use these
409     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
410     process unset it.
411    
412 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
413 ferringb 28 killed off _init and _fini in favor of
414     void __attribute__ ((constructor)) init_func and
415     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
416    
417 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
418     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
419     having the hick-ups.
420    
421 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
422     Makefile.am: Fixed compilation.
423    
424 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
425     Gutted the bugger so it stops checking for a c++ and fortran compiler.
426     Do *not* regenerate aclocal.m4 for making a release until a better
427     solution is created.
428    
429 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
430     Removal of more hardcoded paths.
431    
432 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
433     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
434    
435     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
436 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
437     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
438     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
439     To get to a point of testing, automake && autoconf; created requisite files w/
440     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
441     /lib and /usr/lib/portage/bin.
442    
443 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
444     closing out bug #70225, potential overflow of the sandbox_pids_file var.
445    
446     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
447     (think it was at least) allows intermixing of code and data segments. bug #70351
448     should be fixed by this.
449    
450     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
451     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
452    
453     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
454     Seth Robertson that tracked down all adjuct flags for read operations that
455     do not invoke a write operation.
456    
457     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
458     Another fix from jstubbs regarding a free() on a stack variable for the
459     environment -- tracking now prevents extraneous free()'s segfault.
460    
461     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
462     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
463     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
464     Also remove the errno = ESUCCESS settings as documentation points out that
465     a library isn't allowed to do that.
466    
467     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
468     file_security_check() function to check random potential exploits on files
469     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
470     the 'system-crippling' exploits (bug 21923) and catches a few other
471     potential problems.
472    
473     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
474     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
475    
476     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
477     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
478     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
479    
480     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
481     Fix permissions and group of pids file and logs. Permissions should be 0664
482     and group should be 'portage'. Bug #34260.
483    
484     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
485     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
486     to the real execve (in our execve wrapper). Seems that on some arches (sparc
487     among others) do not allow us to tamper with the readonly copy passed to
488     execve, so pass our own copy of the environment. Bug #42290.
489    
490     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
491     Changed tail to head and added a notice about duration of glibc check.
492    
493     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
494     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
495     as there isn't a guarentee that it is dynamic.
496    
497     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
498     If 'file' passed to before_syscall(const char *func, const char *file) is
499     invalid, we should set errno to ENOENT, and not EINVAL. This should
500     close bug #32238.
501    
502     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
503     Fix a bug that occurs mainly on 64bit arch, where the file passed to
504     the functions we wrap, is invalid, and then cause canonicalize to pass
505     garbage to before_syscall(), thanks to great detective work from
506     Andrea Luzzardi <al@sig11.org> (bug #29846).
507    
508     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
509     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
510    
511     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
512     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
513     only checked the destination patch, and not the source, so we could move
514     a protected file to a unprotected directory, and then delete/modify it.
515     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
516    
517     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
518     Added python2.3 to the predict section/variable.
519    
520     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
521     sandbox.h, sandbox_futils.c :
522     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
523     it is not set, it will revert to its old value.
524    
525     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
526     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
527     rather than failing with a violation, bug #29748.
528    
529     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
530     Fix canonicalize() to ignore calls with path = "".
531    
532     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
533     sandbox_futils.c, canonicalize.c :
534     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
535     call handled strings larger than PATH_MAX (bug #21766). It however does not
536     work the same on 2.4 kernels.
537    
538     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
539     do not need the system call. We use the default getcwd() function via a
540     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
541     means the current directory was removed, OR that the the system call for
542     getcwd failed (curious is that it do not fail and return NULL or set
543     errno, but rather just truncate the retured directory - usually from the
544     start), and if so, we use the generic getcwd() function (__egetcwd). Note
545     that we do not use the generic version all the time, as it calls lstat()
546     a great number of times, and performance degrade much.
547    
548     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
549     libsandbox.c :
550     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
551    
552     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
553     create-localdecls :
554     When checking path names of files accessed, we need to canonicalize it, else
555     it may be a symlink in a 'write allowed' directory pointing to a file in a
556     directory we should not have write access to.
557    
558     With something like coreutils-5.0, we have two problems:
559     1) One of the tests checks if getcwd() can return a path longer than
560     PATH_MAX. This test then tries to create a dir which even while
561     created local (mkdir("conftest2")), it ends up being resolved with
562     a name that is much larger than PATH_MAX. The problem now is that
563     canonicalize() have undefined behaviour when the path was too long
564     (returned wrongly truncated paths, etc), and pass the wrong path to
565     before_syscall() (causing the bogus sandbox violations).
566     2) The ecanonicalize() function we used, along with the canonicalize()
567     function did not support longer than PATH_MAX. This is partly a
568     cause for 1), but the error checking (rather lack of it) of calls
569     to erealpath() in canonicalize() was the prime reason for 1).
570    
571     As we do not use this canonicalized name to call the function, we resolve this
572     by fixing canonicalize() to do better error checking, and ecanonicalize() as
573     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
574     While they will resolve paths properly now, and can check if a write/read is
575     allowed, the functions called from the sandboxed environment will still work
576     as expected.
577    
578     This should resolve bug #21766.
579    
580     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
581     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
582     it (bug #16298).
583    
584     Problem is that for some reason locale fopen's locale.alias with mode "rm".
585    
586     -------------------------------------------------------
587     nosferatu root # grep fopen locale.log
588     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
589     nosferatu root #
590     --------------------------------------------------------
591    
592     I checked the source of locale, but it have fopen with mode 'r', so
593     not sure where the "rm" mode comes from. Anyhow, changed the check in
594     before_syscall_open_char() to also see mode "rm" as readonly.
595    
596     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
597    
598     Add glibc-2.3 support.
599    
600     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
601    
602     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
603     operations releated to preload, as well as only try to modify ld.so.preload
604     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
605     not using ld.so.preload. Fix to not write this instance of sandbox's pid
606     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
607    
608     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
609    
610     Changed the LD to CC for hppa.
611    
612     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
613    
614     Killed the previous changes I made.
615    
616     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
617    
618     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
619    
620     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
621    
622     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
623    
624     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
625    
626     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
627     for this fix.
628    
629     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
630    
631     sandbox_futils defined a dirname() function that was masking the same
632     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
633     '/usr/lib/portage/bi/'). Fixed function to return expected results and
634     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
635     11231.
636    
637     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
638    
639     Fix a segfault in libsandbox.c if canonicalize() was called with
640     first parameter = NULL.
641    
642     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
643    
644     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
645     cleanup() for this.
646    
647     Change cleanup() in sandbox.c not to exit with fail status if
648     the pidsfile is missing. We really should still display sandbox
649     violations if they occured.
650    
651     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
652    
653     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
654     the last sandbox running.
655    
656     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
657    
658     Major cleanups to mainly libsandbox.c again.
659    
660     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
661    
662     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
663     parties involved should please contact me so that we can fix it.
664    
665     Add opendir wrapper to libsandbox.c.
666    
667     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
668    
669     Do some more cleanups to ecanonicalize(), as it dropped filenames in
670     rare cases (after my symlink cleanups), and caused glibc to bork.
671     These fixes went into canonicalize.c.
672    
673     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
674    
675     Fix spawn_shell() and main() in sandbox.c to properly return fail
676     status.
677    
678     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
679    
680     The new canonicalize() function in libsandbox.c also resolved symlinks,
681     which caused on cleaning sandbox errors if the symlink pointed to a
682     file in the live root. Ripped out canonicalize() and realpath() from
683     glibc; removed the symlink stuff, and changed them to ecanonicalize()
684     and erealpath().
685    
686     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
687    
688     Ripped out all the wrappers, and implemented those of InstallWatch.
689     Losts of cleanups and bugfixes. Implement a execve that forces
690     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
691     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
692     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
693     parts; it now have an install target.
694    
695     Reformat the whole thing to look somewhat like the reworked sandbox.c
696     and new sandbox.h and sandbox_futils.c from:
697    
698     Brad House <brad@mainstreetsoftworks.com>.
699    
700     Additional Copyrights now due to the InstallWatch code:
701    
702     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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