Change allows the proper seinfo value to be passed
to libselinux to switch to the proper app security
context before running the shell.
Change-Id: I9d7ea47c920b1bc09a19008345ed7fd0aa426e87
Signed-off-by: rpcraig <rpcraig@tycho.ncsc.mil>
run-as: don't require CAP_DAC_OVERRIDE.
Prevent an adb spawned application from acquiring capabilities
other than
* CAP_NET_RAW
* CAP_SETUID
* CAP_SETGID
The only privileged programs accessible on user builds are
* /system/bin/ping
* /system/bin/run-as
and the capabilities above are sufficient to cover those
two programs.
If the kernel doesn't support file capabilities, we ignore
a prctl(PR_CAPBSET_DROP) failure. In a future CL, this could
become a fatal error.
Change-Id: I45a56712bfda35b5ad9378dde9e04ab062fe691a
This patch uses mmap() to read /data/system/packages.list
This avoids depending on the size of a fixed static buffer
which may happen to be too short for systems with a lot of
packages installed.
Also avoids calling malloc() which we don't want to trust here
since run-as is a setuid program.
Change-Id: I1d640a08b5d73af2fc80546b01c8d970c7f6b514
This patch increases the size of the internal buffer used by run-as
to store the content of /data/system/packages.list from 8KB to 64KB.
It has been reported that, on some systems, 8KB was too small. This
resulted in a truncated file being loaded, and the inability to debug
native applications properly (either because the application was not
found in the list, or because the tool reported a 'corrupted
installation' due to BAD_FORMAT issues when parsing the truncated
file).
See http://code.google.com/p/android/issues/detail?id=16391
Change-Id: I0c35a61b163c4abc6f1a2681adc0ef0d76493171
Typical usage is 'run-as <package-name> <command>' to run <command>
in the data directory, and the user id, of <package-name> if, and only
if <package-name> is the name of an installed and debuggable application.
This relies on the /data/system/packages.list file generated by the
PackageManager service.
BEWARE: This is intended to be available on production devices !
Geremy Condra