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Revision 194 - (hide annotations) (download)
Thu Dec 1 10:58:54 2005 UTC (8 years, 7 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31111 byte(s)
Use egetcwd() in sandbox.c.
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 193 Fixup SANDBOX_ON handling after already running changes.
32    
33 azarah 194 Use egetcwd() in sandbox.c.
34    
35 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
36 azarah 181 sandbox_fdutils.c:
37 azarah 179
38     Detect if we on 64bit arch automatically.
39    
40 azarah 180 Update contact email. Fix quoting.
41    
42 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
43     path checking as well, and add --enable-multilib switch to configure.
44    
45 azarah 176 * sandbox-1.2.14 (2005/11/28)
46    
47 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
48 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
49 azarah 172
50     Check generic getcwd()'s return as well for validity, bug #101728.
51    
52 azarah 173 Cleanup environ variables.
53    
54 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
55     to readonly in sandbox.bashrc.
56    
57 azarah 175 Make sure we use our bashrc.
58    
59 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
60    
61     Do not pass mode to true_open and true_open64 if not needed. Should fix a
62     segfault in some cases.
63    
64 azarah 169 * sandbox-1.2.13 (2005/09/12)
65 azarah 167
66 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
67 azarah 165
68     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
69     itself.
70    
71 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
72     uClibc 'call preloaded library fini before that of app' issue ... probably
73     will not help much, but we try.
74    
75 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
76    
77     Also allow symlink() system call to operate on a symlink in a writable path
78     that points to non-writable path, bug #104711.
79    
80 azarah 160 * sandbox-1.2.12 (2005/08/05)
81    
82 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
83     sandbox.h:
84 azarah 156
85     Do not give an access violation if the access() system call do not have
86     write/read access - it does not actually modify, so we only need to return
87     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
88     bug #101433.
89    
90 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
91     and make the current directory the work directory. Also rename the variable
92     portage_tmp_dir to work_dir.
93    
94 azarah 158 Remove the tmp_dir variable - we do not need it.
95    
96 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
97    
98 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
99    
100     Still do normal log if debugging is requested.
101    
102 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
103     to only enable if equal to "1" or "yes".
104    
105 azarah 155 Add /dev/tts to write permit, bug #42809.
106    
107 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
108     sandbox_futils.c:
109    
110     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
111     in libsandbox .. bug #100309.
112    
113 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
114    
115     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
116    
117 azarah 149 * sandbox-1.2.11 (2005/07/14)
118    
119 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
120     Fix getcwd, bug #98419.
121    
122 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
123     libsandbox.c:
124 azarah 146 - Try to cleanup and make error handling/printing consistent.
125     - Remove old logs if present and conflicting with current.
126 azarah 147 - Fix compile error with previous change, and return rather then exit().
127 azarah 145
128 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
129     sandbox.h, sandbox_futils.c:
130     - Fix possible segfault in env init code.
131     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
132     write to /var/log/sandbox/, so in theory do not need all that.
133 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
134 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
135 azarah 142 - Remove unused includes and variables.
136 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
137     OUTSIDE_LIBSANDBOX is not defined.
138 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
139     printing's last line not honouring NOCOLOR.
140 azarah 138
141 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
142     libsandbox.c:
143     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
144     write to it.
145 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
146 azarah 136 - Add check_prefixes() with major cleanup on check_access().
147 azarah 137 - Cleanup init_env_entries() and check_prefixes().
148 azarah 134
149 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
150     sandbox_futils.c, libsandbox.c:
151     Remove unused 'pids file' code.
152    
153 azarah 128 * sandbox-1.2.10 (2005/07/03)
154    
155 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
156     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
157    
158 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
159     General cleanups:
160     - Remove fooling around with exit codes - we error out on presence of a log
161     anyhow.
162 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
163     appropriate there.
164 azarah 123
165 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
166     Cleanup the fail_nametoolong stuff a bit more.
167    
168 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
169 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
170    
171     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
172 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
173     in check_syscall(). Should speed things up a bit (at least for the getcwd()
174     and long path name test it goes down to under a second, and not 10+ seconds
175     like before). Also warn if we skip checking due to the canonicalized path
176     being too long.
177    
178     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
179 azarah 118 More comment/readability cleanups.
180    
181 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
182     sandbox_futils.c, libsandbox.c:
183     Some strncpy/strncat and other cleanups.
184    
185 azarah 115 * sandbox-1.2.9 (2005/06/09)
186    
187 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
188     Move symlink hack down a bit to try and minimize on the amount of lstat()
189     calls we do.
190    
191 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
192     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
193    
194 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
195     Add wrapper for access() function, bug #85413.
196    
197 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
198     Use generic getcwd() implementation from uclibc - should be more portable
199     and looks a bit cleaner.
200    
201 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
202     Make sure our true_* pointers are initialized to NULL, and that we check for
203     all references that they are valid.
204    
205 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
206     Be default we will fail if the path name we try to canonicalize is too long.
207     This however could cause issues with some things (bug #94630 and #21766), so
208     if fail_nametoolong == 0, canonicalize() will return a null length string and
209     do not fail.
210    
211 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
212     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
213     make sure we re-export the new TMPDIR environment variable.
214    
215 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
216     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
217     by Marcus D. Hanwell <cryos@gentoo.org>.
218    
219 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
220     Add /dev/console to write list, bug #38588.
221    
222 azarah 102 * sandbox-1.2.8 (2005/05/13)
223    
224 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
225 azarah 101 sandbox.h, sandbox_futils.c:
226     General cleanups.
227    
228     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
229 azarah 100 sandbox.h:
230     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
231    
232     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
233 azarah 99 sandbox.h, sandbox_futils.c:
234     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
235     to use TMPDIR if present in environment.
236    
237 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
238     Remove sandbox_log_file from main() as its no longer used.
239    
240 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
241     sandbox_futils.c:
242     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
243     if already exported when sandbox started). Fix get_sandbox_log() and new
244     get_sandbox_debug_log() to not use already exported environment variables if
245     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
246     SB_PATH_MAX fixes.
247    
248 azarah 94 * sandbox-1.2.7 (2005/05/12)
249    
250 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
251     sandbox_futils.c:
252     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
253    
254 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
255     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
256     with '(null)' in it if we did not call sandbox with absolute path.
257    
258 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
259 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
260     for the child.
261    
262     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
263 azarah 90 Remove global preload_adaptable as it is no longer used.
264    
265     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
266 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
267     to try and avoid issues like bug #91541 that causes sandbox to crash if
268     we set LD_PRELOAD sandbox side already.
269    
270 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
271 azarah 88 Move print_sandbox_log() up to make things neater.
272    
273     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
274 azarah 87 Remove load_preload_libs(), as its not used anymore.
275    
276 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
277 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
278    
279     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
280 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
281    
282     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
283 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
284    
285 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
286     Fix typo in code that checks if we got valid group information, causing a
287     segmentation fault, bug #91637.
288    
289 azarah 79 * sandbox-1.2.6 (2005/05/10)
290    
291 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
292     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
293     for some odd reason, bug #91541.
294    
295 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
296     Fix typo (sizeof -> strlen).
297    
298 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
299     rewrote the sbcontext caching code so it accounts for env changes since lib
300     initialization.
301    
302 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
303     We create libctest.c via configure, so no need to keep it around. Do some
304     cleanup related to libctest.c and libctest during configure.
305    
306 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
307     Add rename support of symlinks pointing to protected files/directories.
308    
309 azarah 72 * sandbox-1.2.5 (2005/05/04)
310    
311 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
312     sandbox.bashrc:
313     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
314     already set, init of the env vars fails for some reason, so do this later on,
315     and do not warn (bug #91431).
316    
317 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
318     sandbox.bashrc:
319     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
320    
321 azarah 68 * sandbox-1.2.4 (2005/05/03)
322    
323 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
324     Do not init the env entries with each call, as it creates too many calls to
325 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
326 azarah 66
327 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
328     Add /dev/pty to default write list. Noticed by Morfic.
329    
330 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
331     sandbox.h:
332     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
333     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
334    
335 azarah 59 * sandbox-1.2.3 (2005/04/29)
336    
337 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
338     Do not check for (*&#$(* CXX or F77.
339    
340 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
341     Do not append '/' to pathname in filter_path() if it already ends with it.
342    
343 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
344     With az's help, clean up autotools to work with cross-compiling.
345    
346 azarah 59 * sandbox-1.2.2 (2005/04/28)
347 azarah 48
348 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
349     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
350     have issues; bug #90592.
351    
352 azarah 59 * sandbox-1.2.1 (2005/04/23)
353 azarah 44
354 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
355     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
356     Make sure all functions used in libsandbox.c is declared static. Define
357     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
358     linking with its object. Hopefully this will fix bug #90153.
359    
360 azarah 59 * sandbox-1.2 (2005/04/23)
361 azarah 46
362 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
363     Allow lchown a symlink in write-allowed path pointing to write-denied
364     target.
365    
366 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
367     Also show resolved symlink names in the log.
368    
369 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
370     Seems -nostdlib was the problem with the constructor/destructor - remove it
371     from Makefile.am, and change the constructor/destructor names again.
372    
373 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
374     Also rename the _init() and _fini() declarations.
375    
376 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
377     Fixup the constructor/destructor function names again (they should be _init()
378     and _fini() it seems, and not being called caused sandbox_lib_path to be
379     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
380     Add both the path in given SANDBOX_x variable, as well as its symlink
381     resolved path in init_env_entries(). Modify filter_path() to be able to
382     resolve paths without resolving symlinks, as well as to be able to resolve
383     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
384     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
385     for bug #31019 cause access violations if we try to remove a symlink that is
386     not in protected path, but points to a protected path. Fix a memory leak in
387     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
388     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
389     (pid_string was uninitialized). General syntax cleanups.
390    
391 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
392     infamous "pids file is not a regular file" w/out newline bug.
393    
394 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
395     Correct libc_version path detection, since it was screwing up if libdir !=
396     "/lib/".
397    
398     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
399 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
400    
401 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
402 azarah 31 Fix symbols.in not added to dist.
403    
404 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
405 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
406     White space fixes.
407    
408 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
409 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
410 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
411     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
412     for glibc and other libc's that use this. Update libsandbox.c to use these
413     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
414     process unset it.
415    
416 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
417 ferringb 28 killed off _init and _fini in favor of
418     void __attribute__ ((constructor)) init_func and
419     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
420    
421 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
422     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
423     having the hick-ups.
424    
425 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
426     Makefile.am: Fixed compilation.
427    
428 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
429     Gutted the bugger so it stops checking for a c++ and fortran compiler.
430     Do *not* regenerate aclocal.m4 for making a release until a better
431     solution is created.
432    
433 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
434     Removal of more hardcoded paths.
435    
436 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
437     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
438    
439     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
440 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
441     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
442     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
443     To get to a point of testing, automake && autoconf; created requisite files w/
444     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
445     /lib and /usr/lib/portage/bin.
446    
447 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
448     closing out bug #70225, potential overflow of the sandbox_pids_file var.
449    
450     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
451     (think it was at least) allows intermixing of code and data segments. bug #70351
452     should be fixed by this.
453    
454     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
455     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
456    
457     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
458     Seth Robertson that tracked down all adjuct flags for read operations that
459     do not invoke a write operation.
460    
461     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
462     Another fix from jstubbs regarding a free() on a stack variable for the
463     environment -- tracking now prevents extraneous free()'s segfault.
464    
465     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
466     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
467     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
468     Also remove the errno = ESUCCESS settings as documentation points out that
469     a library isn't allowed to do that.
470    
471     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
472     file_security_check() function to check random potential exploits on files
473     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
474     the 'system-crippling' exploits (bug 21923) and catches a few other
475     potential problems.
476    
477     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
478     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
479    
480     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
481     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
482     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
483    
484     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
485     Fix permissions and group of pids file and logs. Permissions should be 0664
486     and group should be 'portage'. Bug #34260.
487    
488     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
489     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
490     to the real execve (in our execve wrapper). Seems that on some arches (sparc
491     among others) do not allow us to tamper with the readonly copy passed to
492     execve, so pass our own copy of the environment. Bug #42290.
493    
494     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
495     Changed tail to head and added a notice about duration of glibc check.
496    
497     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
498     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
499     as there isn't a guarentee that it is dynamic.
500    
501     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
502     If 'file' passed to before_syscall(const char *func, const char *file) is
503     invalid, we should set errno to ENOENT, and not EINVAL. This should
504     close bug #32238.
505    
506     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
507     Fix a bug that occurs mainly on 64bit arch, where the file passed to
508     the functions we wrap, is invalid, and then cause canonicalize to pass
509     garbage to before_syscall(), thanks to great detective work from
510     Andrea Luzzardi <al@sig11.org> (bug #29846).
511    
512     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
513     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
514    
515     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
516     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
517     only checked the destination patch, and not the source, so we could move
518     a protected file to a unprotected directory, and then delete/modify it.
519     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
520    
521     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
522     Added python2.3 to the predict section/variable.
523    
524     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
525     sandbox.h, sandbox_futils.c :
526     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
527     it is not set, it will revert to its old value.
528    
529     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
530     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
531     rather than failing with a violation, bug #29748.
532    
533     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
534     Fix canonicalize() to ignore calls with path = "".
535    
536     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
537     sandbox_futils.c, canonicalize.c :
538     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
539     call handled strings larger than PATH_MAX (bug #21766). It however does not
540     work the same on 2.4 kernels.
541    
542     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
543     do not need the system call. We use the default getcwd() function via a
544     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
545     means the current directory was removed, OR that the the system call for
546     getcwd failed (curious is that it do not fail and return NULL or set
547     errno, but rather just truncate the retured directory - usually from the
548     start), and if so, we use the generic getcwd() function (__egetcwd). Note
549     that we do not use the generic version all the time, as it calls lstat()
550     a great number of times, and performance degrade much.
551    
552     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
553     libsandbox.c :
554     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
555    
556     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
557     create-localdecls :
558     When checking path names of files accessed, we need to canonicalize it, else
559     it may be a symlink in a 'write allowed' directory pointing to a file in a
560     directory we should not have write access to.
561    
562     With something like coreutils-5.0, we have two problems:
563     1) One of the tests checks if getcwd() can return a path longer than
564     PATH_MAX. This test then tries to create a dir which even while
565     created local (mkdir("conftest2")), it ends up being resolved with
566     a name that is much larger than PATH_MAX. The problem now is that
567     canonicalize() have undefined behaviour when the path was too long
568     (returned wrongly truncated paths, etc), and pass the wrong path to
569     before_syscall() (causing the bogus sandbox violations).
570     2) The ecanonicalize() function we used, along with the canonicalize()
571     function did not support longer than PATH_MAX. This is partly a
572     cause for 1), but the error checking (rather lack of it) of calls
573     to erealpath() in canonicalize() was the prime reason for 1).
574    
575     As we do not use this canonicalized name to call the function, we resolve this
576     by fixing canonicalize() to do better error checking, and ecanonicalize() as
577     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
578     While they will resolve paths properly now, and can check if a write/read is
579     allowed, the functions called from the sandboxed environment will still work
580     as expected.
581    
582     This should resolve bug #21766.
583    
584     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
585     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
586     it (bug #16298).
587    
588     Problem is that for some reason locale fopen's locale.alias with mode "rm".
589    
590     -------------------------------------------------------
591     nosferatu root # grep fopen locale.log
592     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
593     nosferatu root #
594     --------------------------------------------------------
595    
596     I checked the source of locale, but it have fopen with mode 'r', so
597     not sure where the "rm" mode comes from. Anyhow, changed the check in
598     before_syscall_open_char() to also see mode "rm" as readonly.
599    
600     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
601    
602     Add glibc-2.3 support.
603    
604     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
605    
606     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
607     operations releated to preload, as well as only try to modify ld.so.preload
608     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
609     not using ld.so.preload. Fix to not write this instance of sandbox's pid
610     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
611    
612     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
613    
614     Changed the LD to CC for hppa.
615    
616     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
617    
618     Killed the previous changes I made.
619    
620     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
621    
622     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
623    
624     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
625    
626     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
627    
628     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
629    
630     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
631     for this fix.
632    
633     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
634    
635     sandbox_futils defined a dirname() function that was masking the same
636     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
637     '/usr/lib/portage/bi/'). Fixed function to return expected results and
638     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
639     11231.
640    
641     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
642    
643     Fix a segfault in libsandbox.c if canonicalize() was called with
644     first parameter = NULL.
645    
646     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
647    
648     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
649     cleanup() for this.
650    
651     Change cleanup() in sandbox.c not to exit with fail status if
652     the pidsfile is missing. We really should still display sandbox
653     violations if they occured.
654    
655     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
656    
657     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
658     the last sandbox running.
659    
660     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
661    
662     Major cleanups to mainly libsandbox.c again.
663    
664     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
665    
666     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
667     parties involved should please contact me so that we can fix it.
668    
669     Add opendir wrapper to libsandbox.c.
670    
671     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
672    
673     Do some more cleanups to ecanonicalize(), as it dropped filenames in
674     rare cases (after my symlink cleanups), and caused glibc to bork.
675     These fixes went into canonicalize.c.
676    
677     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
678    
679     Fix spawn_shell() and main() in sandbox.c to properly return fail
680     status.
681    
682     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
683    
684     The new canonicalize() function in libsandbox.c also resolved symlinks,
685     which caused on cleaning sandbox errors if the symlink pointed to a
686     file in the live root. Ripped out canonicalize() and realpath() from
687     glibc; removed the symlink stuff, and changed them to ecanonicalize()
688     and erealpath().
689    
690     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
691    
692     Ripped out all the wrappers, and implemented those of InstallWatch.
693     Losts of cleanups and bugfixes. Implement a execve that forces
694     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
695     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
696     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
697     parts; it now have an install target.
698    
699     Reformat the whole thing to look somewhat like the reworked sandbox.c
700     and new sandbox.h and sandbox_futils.c from:
701    
702     Brad House <brad@mainstreetsoftworks.com>.
703    
704     Additional Copyrights now due to the InstallWatch code:
705    
706     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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