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Revision 18 - (show annotations) (download)
Thu Dec 2 02:25:36 2004 UTC (9 years, 8 months ago) by ferringb
Original Path: trunk/ChangeLog
File size: 13168 byte(s)
stupid libtool.

1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2004 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
6 Gutted the bugger so it stops checking for a c++ and fortran compiler.
7 Do *not* regenerate aclocal.m4 for making a release until a better
8 solution is created.
9
10 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
11 Removal of more hardcoded paths.
12
13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
14 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
15
16 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
17 Sandbox is now autotooled, create-localdecls needs to be killed and the code
18 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
19 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
20 To get to a point of testing, automake && autoconf; created requisite files w/
21 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
22 /lib and /usr/lib/portage/bin.
23
24 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
25 closing out bug #70225, potential overflow of the sandbox_pids_file var.
26
27 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
28 (think it was at least) allows intermixing of code and data segments. bug #70351
29 should be fixed by this.
30
31 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
32 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
33
34 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
35 Seth Robertson that tracked down all adjuct flags for read operations that
36 do not invoke a write operation.
37
38 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
39 Another fix from jstubbs regarding a free() on a stack variable for the
40 environment -- tracking now prevents extraneous free()'s segfault.
41
42 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
43 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
44 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
45 Also remove the errno = ESUCCESS settings as documentation points out that
46 a library isn't allowed to do that.
47
48 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
49 file_security_check() function to check random potential exploits on files
50 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
51 the 'system-crippling' exploits (bug 21923) and catches a few other
52 potential problems.
53
54 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
55 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
56
57 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
58 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
59 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
60
61 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
62 Fix permissions and group of pids file and logs. Permissions should be 0664
63 and group should be 'portage'. Bug #34260.
64
65 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
66 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
67 to the real execve (in our execve wrapper). Seems that on some arches (sparc
68 among others) do not allow us to tamper with the readonly copy passed to
69 execve, so pass our own copy of the environment. Bug #42290.
70
71 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
72 Changed tail to head and added a notice about duration of glibc check.
73
74 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
75 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
76 as there isn't a guarentee that it is dynamic.
77
78 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
79 If 'file' passed to before_syscall(const char *func, const char *file) is
80 invalid, we should set errno to ENOENT, and not EINVAL. This should
81 close bug #32238.
82
83 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
84 Fix a bug that occurs mainly on 64bit arch, where the file passed to
85 the functions we wrap, is invalid, and then cause canonicalize to pass
86 garbage to before_syscall(), thanks to great detective work from
87 Andrea Luzzardi <al@sig11.org> (bug #29846).
88
89 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
90 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
91
92 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
93 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
94 only checked the destination patch, and not the source, so we could move
95 a protected file to a unprotected directory, and then delete/modify it.
96 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
97
98 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
99 Added python2.3 to the predict section/variable.
100
101 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
102 sandbox.h, sandbox_futils.c :
103 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
104 it is not set, it will revert to its old value.
105
106 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
107 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
108 rather than failing with a violation, bug #29748.
109
110 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
111 Fix canonicalize() to ignore calls with path = "".
112
113 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
114 sandbox_futils.c, canonicalize.c :
115 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
116 call handled strings larger than PATH_MAX (bug #21766). It however does not
117 work the same on 2.4 kernels.
118
119 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
120 do not need the system call. We use the default getcwd() function via a
121 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
122 means the current directory was removed, OR that the the system call for
123 getcwd failed (curious is that it do not fail and return NULL or set
124 errno, but rather just truncate the retured directory - usually from the
125 start), and if so, we use the generic getcwd() function (__egetcwd). Note
126 that we do not use the generic version all the time, as it calls lstat()
127 a great number of times, and performance degrade much.
128
129 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
130 libsandbox.c :
131 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
132
133 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
134 create-localdecls :
135 When checking path names of files accessed, we need to canonicalize it, else
136 it may be a symlink in a 'write allowed' directory pointing to a file in a
137 directory we should not have write access to.
138
139 With something like coreutils-5.0, we have two problems:
140 1) One of the tests checks if getcwd() can return a path longer than
141 PATH_MAX. This test then tries to create a dir which even while
142 created local (mkdir("conftest2")), it ends up being resolved with
143 a name that is much larger than PATH_MAX. The problem now is that
144 canonicalize() have undefined behaviour when the path was too long
145 (returned wrongly truncated paths, etc), and pass the wrong path to
146 before_syscall() (causing the bogus sandbox violations).
147 2) The ecanonicalize() function we used, along with the canonicalize()
148 function did not support longer than PATH_MAX. This is partly a
149 cause for 1), but the error checking (rather lack of it) of calls
150 to erealpath() in canonicalize() was the prime reason for 1).
151
152 As we do not use this canonicalized name to call the function, we resolve this
153 by fixing canonicalize() to do better error checking, and ecanonicalize() as
154 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
155 While they will resolve paths properly now, and can check if a write/read is
156 allowed, the functions called from the sandboxed environment will still work
157 as expected.
158
159 This should resolve bug #21766.
160
161 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
162 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
163 it (bug #16298).
164
165 Problem is that for some reason locale fopen's locale.alias with mode "rm".
166
167 -------------------------------------------------------
168 nosferatu root # grep fopen locale.log
169 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
170 nosferatu root #
171 --------------------------------------------------------
172
173 I checked the source of locale, but it have fopen with mode 'r', so
174 not sure where the "rm" mode comes from. Anyhow, changed the check in
175 before_syscall_open_char() to also see mode "rm" as readonly.
176
177 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
178
179 Add glibc-2.3 support.
180
181 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
182
183 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
184 operations releated to preload, as well as only try to modify ld.so.preload
185 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
186 not using ld.so.preload. Fix to not write this instance of sandbox's pid
187 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
188
189 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
190
191 Changed the LD to CC for hppa.
192
193 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
194
195 Killed the previous changes I made.
196
197 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
198
199 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
200
201 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
202
203 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
204
205 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
206
207 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
208 for this fix.
209
210 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
211
212 sandbox_futils defined a dirname() function that was masking the same
213 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
214 '/usr/lib/portage/bi/'). Fixed function to return expected results and
215 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
216 11231.
217
218 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
219
220 Fix a segfault in libsandbox.c if canonicalize() was called with
221 first parameter = NULL.
222
223 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
224
225 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
226 cleanup() for this.
227
228 Change cleanup() in sandbox.c not to exit with fail status if
229 the pidsfile is missing. We really should still display sandbox
230 violations if they occured.
231
232 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
233
234 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
235 the last sandbox running.
236
237 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
238
239 Major cleanups to mainly libsandbox.c again.
240
241 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
242
243 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
244 parties involved should please contact me so that we can fix it.
245
246 Add opendir wrapper to libsandbox.c.
247
248 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
249
250 Do some more cleanups to ecanonicalize(), as it dropped filenames in
251 rare cases (after my symlink cleanups), and caused glibc to bork.
252 These fixes went into canonicalize.c.
253
254 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
255
256 Fix spawn_shell() and main() in sandbox.c to properly return fail
257 status.
258
259 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
260
261 The new canonicalize() function in libsandbox.c also resolved symlinks,
262 which caused on cleaning sandbox errors if the symlink pointed to a
263 file in the live root. Ripped out canonicalize() and realpath() from
264 glibc; removed the symlink stuff, and changed them to ecanonicalize()
265 and erealpath().
266
267 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
268
269 Ripped out all the wrappers, and implemented those of InstallWatch.
270 Losts of cleanups and bugfixes. Implement a execve that forces
271 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
272 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
273 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
274 parts; it now have an install target.
275
276 Reformat the whole thing to look somewhat like the reworked sandbox.c
277 and new sandbox.h and sandbox_futils.c from:
278
279 Brad House <brad@mainstreetsoftworks.com>.
280
281 Additional Copyrights now due to the InstallWatch code:
282
283 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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