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android / platform / external / minijail / a111f545ed9c032cd618f95ee94391e764d57a26
commita111f545ed9c032cd618f95ee94391e764d57a26[log] [tgz]
authorLingfeng Yang <[email protected]>Thu Feb 20 08:50:39 2020 -0800
committerLingfeng Yang <[email protected]>Thu Feb 20 09:32:35 2020 -0800
treed40510b29335b91187fcd64d775e300ba478816c
parentdbb8948ebe348ea4480e17ad397fc1d92b7c8e30 [diff]
Allow minijail to be built as an Android Rust library

Recent changes in crosvm:

https://chromium.googlesource.com/chromiumos/platform/crosvm/+/a2d845a569494a3924e587b7d63487832cf55ab8

use minijail as a separate dependency.

This allows us to use the current minijail in AOSP to build crosvm
in the Android source tree.

Change-Id: I15cc9b3e408deec1b34ff387a2c27fd3ac1cd243
1 file changed
tree: d40510b29335b91187fcd64d775e300ba478816c
  1. .github/
  2. examples/
  3. linux-x86/
  4. test/
  5. tools/
  6. .clang-format
  7. .gitignore
  8. Android.bp
  9. arch.h
  10. bpf.c
  11. bpf.h
  12. build.rs
  13. Cargo.toml
  14. CleanSpec.mk
  15. common.mk
  16. CPPLINT.cfg
  17. dump_constants.cc
  18. elfparse.c
  19. elfparse.h
  20. gen_constants-inl.h
  21. gen_constants.c
  22. gen_constants.sh
  23. gen_syscalls.c
  24. gen_syscalls.sh
  25. get_googletest.sh
  26. HACKING.md
  27. lib.rs
  28. libconstants.h
  29. libminijail-private.h
  30. libminijail.c
  31. libminijail.h
  32. libminijail.pc.in
  33. libminijail.rs
  34. libminijail_unittest.cc
  35. libminijailpreload.c
  36. libsyscalls.h
  37. LICENSE
  38. Makefile
  39. minijail0.1
  40. minijail0.5
  41. minijail0.c
  42. minijail0_cli.c
  43. minijail0_cli.h
  44. minijail0_cli_unittest.cc
  45. MODULE_LICENSE_BSD
  46. navbar.md
  47. NOTICE
  48. OWNERS
  49. OWNERS.rust
  50. parse_seccomp_policy.cc
  51. platform2_preinstall.sh
  52. PRESUBMIT.cfg
  53. PREUPLOAD.cfg
  54. README.md
  55. RELEASE.md
  56. scoped_minijail.h
  57. setup.py
  58. signal_handler.c
  59. signal_handler.h
  60. syscall_filter.c
  61. syscall_filter.h
  62. syscall_filter_unittest.cc
  63. syscall_filter_unittest_macros.h
  64. syscall_wrapper.c
  65. syscall_wrapper.h
  66. system.c
  67. system.h
  68. system_unittest.cc
  69. TEST_MAPPING
  70. testrunner.cc
  71. util.c
  72. util.h
  73. util_unittest.cc
README.md

Minijail

The Minijail homepage and main repo is https://android.googlesource.com/platform/external/minijail/.

There might be other copies floating around, but this is the official one!

What is it?

Minijail is a sandboxing and containment tool used in Chrome OS and Android. It provides an executable that can be used to launch and sandbox other programs, and a library that can be used by code to sandbox itself.

Getting the code

You're one git clone away from happiness.

$ git clone https://android.googlesource.com/platform/external/minijail
$ cd minijail

Releases are tagged as linux-vXX: https://android.googlesource.com/platform/external/minijail/+refs

Building

See the HACKING.md document for more details.

Release process

See the RELEASE.md document for more details.

Additional tools

See the tools/README.md document for more details.

Contact

We've got a couple of contact points.

Talks and presentations

The following talk serves as a good introduction to Minijail and how it can be used.

Video, slides.

Example usage

The Chromium OS project has a comprehensive sandboxing document that is largely based on Minijail.

After you play with the simple examples below, you should check that out.

Change root to any user

# id
uid=0(root) gid=0(root) groups=0(root),128(pkcs11)
# minijail0 -u jorgelo -g 5000 /usr/bin/id
uid=72178(jorgelo) gid=5000(eng) groups=5000(eng)

Drop root while keeping some capabilities

# minijail0 -u jorgelo -c 3000 -- /bin/cat /proc/self/status
Name: cat
...
CapInh: 0000000000003000
CapPrm: 0000000000003000
CapEff: 0000000000003000
CapBnd: 0000000000003000