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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 195 Rather use fstat() to get file size in file_length() than lseek().
36    
37 azarah 196 Wrap mknod() as well. Misc cleanups.
38    
39 azarah 197 Wrap mkfifo() as it seems it was missing.
40    
41 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
42 azarah 181 sandbox_fdutils.c:
43 azarah 179
44     Detect if we on 64bit arch automatically.
45    
46 azarah 180 Update contact email. Fix quoting.
47    
48 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
49     path checking as well, and add --enable-multilib switch to configure.
50    
51 azarah 176 * sandbox-1.2.14 (2005/11/28)
52    
53 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
54 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
55 azarah 172
56     Check generic getcwd()'s return as well for validity, bug #101728.
57    
58 azarah 173 Cleanup environ variables.
59    
60 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
61     to readonly in sandbox.bashrc.
62    
63 azarah 175 Make sure we use our bashrc.
64    
65 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
66    
67     Do not pass mode to true_open and true_open64 if not needed. Should fix a
68     segfault in some cases.
69    
70 azarah 169 * sandbox-1.2.13 (2005/09/12)
71 azarah 167
72 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
73 azarah 165
74     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
75     itself.
76    
77 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
78     uClibc 'call preloaded library fini before that of app' issue ... probably
79     will not help much, but we try.
80    
81 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
82    
83     Also allow symlink() system call to operate on a symlink in a writable path
84     that points to non-writable path, bug #104711.
85    
86 azarah 160 * sandbox-1.2.12 (2005/08/05)
87    
88 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
89     sandbox.h:
90 azarah 156
91     Do not give an access violation if the access() system call do not have
92     write/read access - it does not actually modify, so we only need to return
93     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
94     bug #101433.
95    
96 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
97     and make the current directory the work directory. Also rename the variable
98     portage_tmp_dir to work_dir.
99    
100 azarah 158 Remove the tmp_dir variable - we do not need it.
101    
102 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
103    
104 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
105    
106     Still do normal log if debugging is requested.
107    
108 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
109     to only enable if equal to "1" or "yes".
110    
111 azarah 155 Add /dev/tts to write permit, bug #42809.
112    
113 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
114     sandbox_futils.c:
115    
116     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
117     in libsandbox .. bug #100309.
118    
119 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
120    
121     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
122    
123 azarah 149 * sandbox-1.2.11 (2005/07/14)
124    
125 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
126     Fix getcwd, bug #98419.
127    
128 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
129     libsandbox.c:
130 azarah 146 - Try to cleanup and make error handling/printing consistent.
131     - Remove old logs if present and conflicting with current.
132 azarah 147 - Fix compile error with previous change, and return rather then exit().
133 azarah 145
134 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
135     sandbox.h, sandbox_futils.c:
136     - Fix possible segfault in env init code.
137     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
138     write to /var/log/sandbox/, so in theory do not need all that.
139 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
140 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
141 azarah 142 - Remove unused includes and variables.
142 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
143     OUTSIDE_LIBSANDBOX is not defined.
144 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
145     printing's last line not honouring NOCOLOR.
146 azarah 138
147 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
148     libsandbox.c:
149     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
150     write to it.
151 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
152 azarah 136 - Add check_prefixes() with major cleanup on check_access().
153 azarah 137 - Cleanup init_env_entries() and check_prefixes().
154 azarah 134
155 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
156     sandbox_futils.c, libsandbox.c:
157     Remove unused 'pids file' code.
158    
159 azarah 128 * sandbox-1.2.10 (2005/07/03)
160    
161 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
162     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
163    
164 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
165     General cleanups:
166     - Remove fooling around with exit codes - we error out on presence of a log
167     anyhow.
168 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
169     appropriate there.
170 azarah 123
171 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
172     Cleanup the fail_nametoolong stuff a bit more.
173    
174 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
175 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
176    
177     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
178 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
179     in check_syscall(). Should speed things up a bit (at least for the getcwd()
180     and long path name test it goes down to under a second, and not 10+ seconds
181     like before). Also warn if we skip checking due to the canonicalized path
182     being too long.
183    
184     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
185 azarah 118 More comment/readability cleanups.
186    
187 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
188     sandbox_futils.c, libsandbox.c:
189     Some strncpy/strncat and other cleanups.
190    
191 azarah 115 * sandbox-1.2.9 (2005/06/09)
192    
193 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
194     Move symlink hack down a bit to try and minimize on the amount of lstat()
195     calls we do.
196    
197 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
198     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
199    
200 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
201     Add wrapper for access() function, bug #85413.
202    
203 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
204     Use generic getcwd() implementation from uclibc - should be more portable
205     and looks a bit cleaner.
206    
207 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
208     Make sure our true_* pointers are initialized to NULL, and that we check for
209     all references that they are valid.
210    
211 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
212     Be default we will fail if the path name we try to canonicalize is too long.
213     This however could cause issues with some things (bug #94630 and #21766), so
214     if fail_nametoolong == 0, canonicalize() will return a null length string and
215     do not fail.
216    
217 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
218     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
219     make sure we re-export the new TMPDIR environment variable.
220    
221 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
222     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
223     by Marcus D. Hanwell <cryos@gentoo.org>.
224    
225 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
226     Add /dev/console to write list, bug #38588.
227    
228 azarah 102 * sandbox-1.2.8 (2005/05/13)
229    
230 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
231 azarah 101 sandbox.h, sandbox_futils.c:
232     General cleanups.
233    
234     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
235 azarah 100 sandbox.h:
236     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
237    
238     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
239 azarah 99 sandbox.h, sandbox_futils.c:
240     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
241     to use TMPDIR if present in environment.
242    
243 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
244     Remove sandbox_log_file from main() as its no longer used.
245    
246 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
247     sandbox_futils.c:
248     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
249     if already exported when sandbox started). Fix get_sandbox_log() and new
250     get_sandbox_debug_log() to not use already exported environment variables if
251     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
252     SB_PATH_MAX fixes.
253    
254 azarah 94 * sandbox-1.2.7 (2005/05/12)
255    
256 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
257     sandbox_futils.c:
258     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
259    
260 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
261     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
262     with '(null)' in it if we did not call sandbox with absolute path.
263    
264 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
265 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
266     for the child.
267    
268     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
269 azarah 90 Remove global preload_adaptable as it is no longer used.
270    
271     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
272 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
273     to try and avoid issues like bug #91541 that causes sandbox to crash if
274     we set LD_PRELOAD sandbox side already.
275    
276 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
277 azarah 88 Move print_sandbox_log() up to make things neater.
278    
279     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
280 azarah 87 Remove load_preload_libs(), as its not used anymore.
281    
282 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
283 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
284    
285     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
286 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
287    
288     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
289 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
290    
291 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
292     Fix typo in code that checks if we got valid group information, causing a
293     segmentation fault, bug #91637.
294    
295 azarah 79 * sandbox-1.2.6 (2005/05/10)
296    
297 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
298     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
299     for some odd reason, bug #91541.
300    
301 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
302     Fix typo (sizeof -> strlen).
303    
304 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
305     rewrote the sbcontext caching code so it accounts for env changes since lib
306     initialization.
307    
308 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
309     We create libctest.c via configure, so no need to keep it around. Do some
310     cleanup related to libctest.c and libctest during configure.
311    
312 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
313     Add rename support of symlinks pointing to protected files/directories.
314    
315 azarah 72 * sandbox-1.2.5 (2005/05/04)
316    
317 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
318     sandbox.bashrc:
319     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
320     already set, init of the env vars fails for some reason, so do this later on,
321     and do not warn (bug #91431).
322    
323 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
324     sandbox.bashrc:
325     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
326    
327 azarah 68 * sandbox-1.2.4 (2005/05/03)
328    
329 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
330     Do not init the env entries with each call, as it creates too many calls to
331 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
332 azarah 66
333 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
334     Add /dev/pty to default write list. Noticed by Morfic.
335    
336 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
337     sandbox.h:
338     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
339     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
340    
341 azarah 59 * sandbox-1.2.3 (2005/04/29)
342    
343 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
344     Do not check for (*&#$(* CXX or F77.
345    
346 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
347     Do not append '/' to pathname in filter_path() if it already ends with it.
348    
349 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
350     With az's help, clean up autotools to work with cross-compiling.
351    
352 azarah 59 * sandbox-1.2.2 (2005/04/28)
353 azarah 48
354 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
355     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
356     have issues; bug #90592.
357    
358 azarah 59 * sandbox-1.2.1 (2005/04/23)
359 azarah 44
360 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
361     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
362     Make sure all functions used in libsandbox.c is declared static. Define
363     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
364     linking with its object. Hopefully this will fix bug #90153.
365    
366 azarah 59 * sandbox-1.2 (2005/04/23)
367 azarah 46
368 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
369     Allow lchown a symlink in write-allowed path pointing to write-denied
370     target.
371    
372 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
373     Also show resolved symlink names in the log.
374    
375 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
376     Seems -nostdlib was the problem with the constructor/destructor - remove it
377     from Makefile.am, and change the constructor/destructor names again.
378    
379 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
380     Also rename the _init() and _fini() declarations.
381    
382 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
383     Fixup the constructor/destructor function names again (they should be _init()
384     and _fini() it seems, and not being called caused sandbox_lib_path to be
385     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
386     Add both the path in given SANDBOX_x variable, as well as its symlink
387     resolved path in init_env_entries(). Modify filter_path() to be able to
388     resolve paths without resolving symlinks, as well as to be able to resolve
389     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
390     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
391     for bug #31019 cause access violations if we try to remove a symlink that is
392     not in protected path, but points to a protected path. Fix a memory leak in
393     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
394     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
395     (pid_string was uninitialized). General syntax cleanups.
396    
397 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
398     infamous "pids file is not a regular file" w/out newline bug.
399    
400 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
401     Correct libc_version path detection, since it was screwing up if libdir !=
402     "/lib/".
403    
404     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
405 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
406    
407 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
408 azarah 31 Fix symbols.in not added to dist.
409    
410 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
411 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
412     White space fixes.
413    
414 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
415 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
416 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
417     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
418     for glibc and other libc's that use this. Update libsandbox.c to use these
419     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
420     process unset it.
421    
422 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
423 ferringb 28 killed off _init and _fini in favor of
424     void __attribute__ ((constructor)) init_func and
425     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
426    
427 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
428     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
429     having the hick-ups.
430    
431 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
432     Makefile.am: Fixed compilation.
433    
434 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
435     Gutted the bugger so it stops checking for a c++ and fortran compiler.
436     Do *not* regenerate aclocal.m4 for making a release until a better
437     solution is created.
438    
439 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
440     Removal of more hardcoded paths.
441    
442 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
443     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
444    
445     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
446 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
447     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
448     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
449     To get to a point of testing, automake && autoconf; created requisite files w/
450     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
451     /lib and /usr/lib/portage/bin.
452    
453 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
454     closing out bug #70225, potential overflow of the sandbox_pids_file var.
455    
456     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
457     (think it was at least) allows intermixing of code and data segments. bug #70351
458     should be fixed by this.
459    
460     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
461     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
462    
463     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
464     Seth Robertson that tracked down all adjuct flags for read operations that
465     do not invoke a write operation.
466    
467     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
468     Another fix from jstubbs regarding a free() on a stack variable for the
469     environment -- tracking now prevents extraneous free()'s segfault.
470    
471     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
472     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
473     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
474     Also remove the errno = ESUCCESS settings as documentation points out that
475     a library isn't allowed to do that.
476    
477     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
478     file_security_check() function to check random potential exploits on files
479     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
480     the 'system-crippling' exploits (bug 21923) and catches a few other
481     potential problems.
482    
483     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
484     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
485    
486     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
487     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
488     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
489    
490     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
491     Fix permissions and group of pids file and logs. Permissions should be 0664
492     and group should be 'portage'. Bug #34260.
493    
494     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
495     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
496     to the real execve (in our execve wrapper). Seems that on some arches (sparc
497     among others) do not allow us to tamper with the readonly copy passed to
498     execve, so pass our own copy of the environment. Bug #42290.
499    
500     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
501     Changed tail to head and added a notice about duration of glibc check.
502    
503     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
504     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
505     as there isn't a guarentee that it is dynamic.
506    
507     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
508     If 'file' passed to before_syscall(const char *func, const char *file) is
509     invalid, we should set errno to ENOENT, and not EINVAL. This should
510     close bug #32238.
511    
512     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
513     Fix a bug that occurs mainly on 64bit arch, where the file passed to
514     the functions we wrap, is invalid, and then cause canonicalize to pass
515     garbage to before_syscall(), thanks to great detective work from
516     Andrea Luzzardi <al@sig11.org> (bug #29846).
517    
518     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
519     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
520    
521     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
522     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
523     only checked the destination patch, and not the source, so we could move
524     a protected file to a unprotected directory, and then delete/modify it.
525     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
526    
527     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
528     Added python2.3 to the predict section/variable.
529    
530     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
531     sandbox.h, sandbox_futils.c :
532     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
533     it is not set, it will revert to its old value.
534    
535     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
536     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
537     rather than failing with a violation, bug #29748.
538    
539     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
540     Fix canonicalize() to ignore calls with path = "".
541    
542     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
543     sandbox_futils.c, canonicalize.c :
544     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
545     call handled strings larger than PATH_MAX (bug #21766). It however does not
546     work the same on 2.4 kernels.
547    
548     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
549     do not need the system call. We use the default getcwd() function via a
550     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
551     means the current directory was removed, OR that the the system call for
552     getcwd failed (curious is that it do not fail and return NULL or set
553     errno, but rather just truncate the retured directory - usually from the
554     start), and if so, we use the generic getcwd() function (__egetcwd). Note
555     that we do not use the generic version all the time, as it calls lstat()
556     a great number of times, and performance degrade much.
557    
558     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
559     libsandbox.c :
560     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
561    
562     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
563     create-localdecls :
564     When checking path names of files accessed, we need to canonicalize it, else
565     it may be a symlink in a 'write allowed' directory pointing to a file in a
566     directory we should not have write access to.
567    
568     With something like coreutils-5.0, we have two problems:
569     1) One of the tests checks if getcwd() can return a path longer than
570     PATH_MAX. This test then tries to create a dir which even while
571     created local (mkdir("conftest2")), it ends up being resolved with
572     a name that is much larger than PATH_MAX. The problem now is that
573     canonicalize() have undefined behaviour when the path was too long
574     (returned wrongly truncated paths, etc), and pass the wrong path to
575     before_syscall() (causing the bogus sandbox violations).
576     2) The ecanonicalize() function we used, along with the canonicalize()
577     function did not support longer than PATH_MAX. This is partly a
578     cause for 1), but the error checking (rather lack of it) of calls
579     to erealpath() in canonicalize() was the prime reason for 1).
580    
581     As we do not use this canonicalized name to call the function, we resolve this
582     by fixing canonicalize() to do better error checking, and ecanonicalize() as
583     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
584     While they will resolve paths properly now, and can check if a write/read is
585     allowed, the functions called from the sandboxed environment will still work
586     as expected.
587    
588     This should resolve bug #21766.
589    
590     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
591     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
592     it (bug #16298).
593    
594     Problem is that for some reason locale fopen's locale.alias with mode "rm".
595    
596     -------------------------------------------------------
597     nosferatu root # grep fopen locale.log
598     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
599     nosferatu root #
600     --------------------------------------------------------
601    
602     I checked the source of locale, but it have fopen with mode 'r', so
603     not sure where the "rm" mode comes from. Anyhow, changed the check in
604     before_syscall_open_char() to also see mode "rm" as readonly.
605    
606     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
607    
608     Add glibc-2.3 support.
609    
610     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
611    
612     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
613     operations releated to preload, as well as only try to modify ld.so.preload
614     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
615     not using ld.so.preload. Fix to not write this instance of sandbox's pid
616     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
617    
618     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
619    
620     Changed the LD to CC for hppa.
621    
622     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
623    
624     Killed the previous changes I made.
625    
626     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
627    
628     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
629    
630     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
631    
632     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
633    
634     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
635    
636     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
637     for this fix.
638    
639     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
640    
641     sandbox_futils defined a dirname() function that was masking the same
642     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
643     '/usr/lib/portage/bi/'). Fixed function to return expected results and
644     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
645     11231.
646    
647     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
648    
649     Fix a segfault in libsandbox.c if canonicalize() was called with
650     first parameter = NULL.
651    
652     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
653    
654     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
655     cleanup() for this.
656    
657     Change cleanup() in sandbox.c not to exit with fail status if
658     the pidsfile is missing. We really should still display sandbox
659     violations if they occured.
660    
661     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
662    
663     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
664     the last sandbox running.
665    
666     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
667    
668     Major cleanups to mainly libsandbox.c again.
669    
670     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
671    
672     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
673     parties involved should please contact me so that we can fix it.
674    
675     Add opendir wrapper to libsandbox.c.
676    
677     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
678    
679     Do some more cleanups to ecanonicalize(), as it dropped filenames in
680     rare cases (after my symlink cleanups), and caused glibc to bork.
681     These fixes went into canonicalize.c.
682    
683     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
684    
685     Fix spawn_shell() and main() in sandbox.c to properly return fail
686     status.
687    
688     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
689    
690     The new canonicalize() function in libsandbox.c also resolved symlinks,
691     which caused on cleaning sandbox errors if the symlink pointed to a
692     file in the live root. Ripped out canonicalize() and realpath() from
693     glibc; removed the symlink stuff, and changed them to ecanonicalize()
694     and erealpath().
695    
696     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
697    
698     Ripped out all the wrappers, and implemented those of InstallWatch.
699     Losts of cleanups and bugfixes. Implement a execve that forces
700     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
701     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
702     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
703     parts; it now have an install target.
704    
705     Reformat the whole thing to look somewhat like the reworked sandbox.c
706     and new sandbox.h and sandbox_futils.c from:
707    
708     Brad House <brad@mainstreetsoftworks.com>.
709    
710     Additional Copyrights now due to the InstallWatch code:
711    
712     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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