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31 Commits

Author SHA1 Message Date
Christian Blichmann
ed0086eb66 Fix dynamic binary startup on PPC and newer glibc (> 2.19) 
This allows the `_llseek` syscall when it is defined.

PiperOrigin-RevId: 331498182
Change-Id: I2760b264e3a82000b38d278a9c280501a3dbc724
 2020-09-14 01:18:33 -07:00
Christian Blichmann
21f7373e76 Initial changes to support AArch64 
This is a work in progress:
- Syscall tables need work
- Only tested on real hardware using one of our test hosts

As a drive-by, this change also enables the open source version to function on
POWER.

Another side-effect of this change is that the default policies no longer
check for different host architectures at runtime. On x86_64, we do not need
to check for PPC or AArch64 specifice and vice versa.

PiperOrigin-RevId: 331137472
Change-Id: Ic6d6be5cbe61d83dbe13d5a0be036871754b2eb8
 2020-09-11 06:34:27 -07:00
Christian Blichmann
6a1e4b881c Introduce config header to centralize CPU architecture checks 
This allows us to remove some uses of macros.

Related changes:
- Make it clear that we support hosting sandboxed binaries from 64-bit
  processes only. CPU architectures are x86-64 and POWER64 (little endian).
- Introduced CPU architecture macros, abstracting away compiler specifics

PiperOrigin-RevId: 330918134
Change-Id: Ife7ad5f14723eec9f68055127b0583b8aecd38dd
 2020-09-10 05:48:00 -07:00
Sandboxed API Team
23da55c19a Internal BUILD refactoring 
PiperOrigin-RevId: 329720214
Change-Id: I25fbb94dea17db3bdca6438d17508fa304d9706f
 2020-09-03 07:40:33 -07:00
Sandboxed API Team
1c833d6f25 Internal cleanup migrating StatusOr. 
PiperOrigin-RevId: 329304527
Change-Id: Id6c141272df54c4e165829d690f9f5b2e9ee90cc
 2020-08-31 08:13:29 -07:00
Sandboxed API Team
a602177943 Fix AllowLlvmSanitizers for Msan. 
PiperOrigin-RevId: 319947612
Change-Id: I6485d8282381c4cb2be05e138e007ccbb3e5d956
 2020-07-07 02:40:24 -07:00
Sandboxed API Team
88e9dbf8d4 Allow Asan to get sigaltstack 
Include sigaltstack into AllowHandleSignals

PiperOrigin-RevId: 319293484
Change-Id: I4d60715893bd07eff047d2bced1450a3cd29bcec
 2020-07-01 14:09:03 -07:00
Sandboxed API Team
79049b09c0 Add helper function for MADV_WIPEONFORK. 
BoringSSL (which is the crypto library used by most Google products) is starting to use madvise(_, _, MADV_WIPEONFORK) to protect random-number state from being duplicated by fork(). This causes extra madvise calls that sandboxes need to permit in order to continue functioning.

PiperOrigin-RevId: 309173849
Change-Id: I007dacc1ff1fd0ccc138caaa08735cfe5bc78234
 2020-04-30 00:08:55 -07:00
Christian Blichmann
496672c333 Cleanup calls to sapi::StatusOr<>::ValueOrDie() 
PiperOrigin-RevId: 304398197
Change-Id: I85d09457a5e27f65c0792fe93aebbd8219801ef6
 2020-04-02 07:42:45 -07:00
Christian Blichmann
f6c3db4c6e Replace sapi::Status with absl::Status 
PiperOrigin-RevId: 297614681
Change-Id: I89fe1357a172ed4d28df6dd84b80fee364ce1c14
 2020-02-27 09:24:12 -08:00
bielec
5a4e3f3d29 Now network proxy server supports IP filtering. API to policybuilder is added to make a list of allowed pairs of allowed IP, mask and port where mask and port are optional. 
PiperOrigin-RevId: 296206385
Change-Id: I53b23122abece1fe318ed4c6a7e37bf3228c8f5f
 2020-02-20 07:45:44 -08:00
Christian Blichmann
5d81c822d8 Automated rollback of commit e56f562fe2. 
PiperOrigin-RevId: 296178631
Change-Id: I0f871aeecd70e9d2f99c7d52d94c6043a1668325
 2020-02-20 04:26:37 -08:00
Maciej Szawłowski
fc514451e0 Internal BUILD changes 
PiperOrigin-RevId: 296174640
Change-Id: I94c8e36d76d6cbb2b9d65f35d8700018b62d3db1
 2020-02-20 04:26:23 -08:00
Sandboxed API Team
e56f562fe2 Automated rollback of commit 4eede550e7. 
PiperOrigin-RevId: 295946052
Change-Id: Ie8c23fe8eec99ab52245ae7f482f1e6b99ec010e
 2020-02-19 05:19:15 -08:00
Christian Blichmann
4eede550e7 Prepare for upcoming changes in Abseil 
- Move canonical errors into status.

PiperOrigin-RevId: 295941935
Change-Id: I9408d21b6d34239b0ef3f3cd24975f39f1405505
 2020-02-19 04:43:29 -08:00
Sandboxed API Team
05280287e0 Automated rollback of commit 800339d672. 
PiperOrigin-RevId: 294644781
Change-Id: I88ad35abd96468476294039a41b6f2a8234db6ca
 2020-02-17 10:39:08 +01:00
bielec
800339d672 Now network proxy server supports IP filtering. API to policybuilder is added to make a list of allowed pairs of allowed IP, mask and port where mask and port are optional. 
PiperOrigin-RevId: 294640297
Change-Id: I4c6520685a658f8b7762af238588830f71b3f54a
 2020-02-17 10:38:44 +01:00
Sandboxed API Team
daa1c7a64e Allow sandboxee to read from /proc when sanitizers are allowed. 
Sanitizers read from /proc. For example:
69445f095c/lib/sanitizer_common/sanitizer_linux.cpp (L1101)

PiperOrigin-RevId: 292363903
Change-Id: Icc383ededcad363b4e96f5551f140f012b07b495
 2020-01-30 09:30:42 -08:00
Christian Blichmann
441201884a Update license header with recommended best practices 
PiperOrigin-RevId: 290250533
Change-Id: Ic34b253446463cf971a055b70a242df93a598ee3
 2020-01-17 05:05:29 -08:00
Wiktor Garbacz
1673ade4e4 Remount chroot as read-only 
PiperOrigin-RevId: 280394655
Change-Id: I1490b7dfbbca3d91f5efb4dd5800397c9da57da8
 2019-11-14 03:51:26 -08:00
Kristj?n J?nsson
78824353d1 Make PolicyBuilder a value class. 
This makes the class more ergonomic because
* You don't have to heap allocate the builder.
* You can create a policy builder "template" and re-use it across sandboxes to avoid repetitive work.

PiperOrigin-RevId: 273555679
Change-Id: I4084ee9c74f95ebfde873eb0dc021b3b3cdc5ea2
 2019-10-08 10:45:45 -07:00
Wiktor Garbacz
2e22b13b39 Enable namespaces by default 
PiperOrigin-RevId: 268417712
Change-Id: I496d76e8a90665627b9be2bb5f9872a5df1c84e4
 2019-09-11 02:39:49 -07:00
Christian Blichmann
276b7efc92 Internal change. 
PiperOrigin-RevId: 265057217
Change-Id: Id00c867b373dbe8c9112c23ef4b0300ed3ca9e5b
 2019-08-23 08:08:51 -07:00
bielec
ef7592cfdd Now the network proxy client can automatically redirect connect syscalls to a handler that will send the data (syscall arguments) to the proxy server automatically and will return the obtained socket from the proxy server, in the future rules like allowed IP, protocols, etc. will be added 
PiperOrigin-RevId: 259512665
Change-Id: I2747c7548ab24c7d2c90abb303fd783c11fed6f4
 2019-07-23 04:41:08 -07:00
Wiktor Garbacz
2300141bdb Require namespaces to be disabled explicitly 
PiperOrigin-RevId: 258730797
Change-Id: I5a1df23c5176a3cecd5a343483500550f27adf44
 2019-07-18 02:18:26 -07:00
Sandboxed API Team
970257d87b Allow two madvise calls for asan & tsan builds. 
bbfa21f177/lib/sanitizer_common/sanitizer_posix_libcdep.cc (L71)

PiperOrigin-RevId: 252048323
Change-Id: I457e708f0b024fd9db4ad39265cb904777ca52b5
 2019-06-07 07:53:10 -07:00
Wiktor Garbacz
85059ef40d Add DisableNamespaces to PolicyBuilder 
Currently mostly no-op, but this is the first step to turn namespaces on
by default.

PiperOrigin-RevId: 249439158
Change-Id: I5eeb1216dc868c660f62ad50c34f626afbf7db61
 2019-05-22 06:54:12 -07:00
Chris Kennelly
d90b2c6328 Allow TCMalloc to access the rseq syscall. 
PiperOrigin-RevId: 243441655
Change-Id: I82918459c20f164b56cc0c5b621b004315a011ec
 2019-04-13 13:45:35 -07:00
Sandboxed API Team
137f772f2b Allow TCMalloc to call madvise with MADV_NOHUGEPAGE 
PiperOrigin-RevId: 240555428
Change-Id: I05fd61ecd09fc0a3f76dade0341d35b04a590b90
 2019-03-27 07:40:57 -07:00
Christian Blichmann
f04be9276f Formatting fixes and include file hygiene. 
PiperOrigin-RevId: 240346890
Change-Id: I1a9617f10a62a848b6314a6196512e016ae02643
 2019-03-26 07:54:21 -07:00
Christian Blichmann
177b969e8c
Sandboxed API OSS release. 
PiperOrigin-RevId: 238996664
Change-Id: I9646527e2be68ee0b6b371572b7aafe967102e57

Signed-off-by: Christian Blichmann <cblichmann@google.com>
 2019-03-18 19:00:48 +01:00