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recovery_refresh.te

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    • dcashman's avatar
      2e00e637
      sepolicy: add version_policy tool and version non-platform policy. · 2e00e637
      dcashman authored
      In order to support platform changes without simultaneous updates from
      non-platform components, the platform and non-platform policies must be
      split.  In order to provide a guarantee that policy written for
      non-platform objects continues to provide the same access, all types
      exposed to non-platform policy are versioned by converting them and the
      policy using them into attributes.
      
      This change performs that split, the subsequent versioning and also
      generates a mapping file to glue the different policy components
      together.
      
      Test: Device boots and runs.
      Bug: 31369363
      Change-Id: Ibfd3eb077bd9b8e2ff3b2e6a0ca87e44d78b1317
      2e00e637
      History
      sepolicy: add version_policy tool and version non-platform policy.
      dcashman authored
      In order to support platform changes without simultaneous updates from
      non-platform components, the platform and non-platform policies must be
      split.  In order to provide a guarantee that policy written for
      non-platform objects continues to provide the same access, all types
      exposed to non-platform policy are versioned by converting them and the
      policy using them into attributes.
      
      This change performs that split, the subsequent versioning and also
      generates a mapping file to glue the different policy components
      together.
      
      Test: Device boots and runs.
      Bug: 31369363
      Change-Id: Ibfd3eb077bd9b8e2ff3b2e6a0ca87e44d78b1317
    gpsd.te 899 B
    # gpsd - GPS daemon
    type gpsd, domain;
    type gpsd_exec, exec_type, file_type;
    
    init_daemon_domain(gpsd)
    net_domain(gpsd)
    allow gpsd gps_data_file:dir rw_dir_perms;
    allow gpsd gps_data_file:notdevfile_class_set create_file_perms;
    # Socket is created by the daemon, not by init, and under /data/gps,
    # not under /dev/socket.
    type_transition gpsd gps_data_file:sock_file gps_socket;
    allow gpsd gps_socket:sock_file create_file_perms;
    # XXX Label sysfs files with a specific type?
    allow gpsd sysfs:file rw_file_perms;
    
    allow gpsd gps_device:chr_file rw_file_perms;
    
    # Execute the shell or system commands.
    allow gpsd shell_exec:file rx_file_perms;
    allow gpsd system_file:file rx_file_perms;
    allow gpsd toolbox_exec:file rx_file_perms;
    
    ###
    ### neverallow
    ###
    
    # gpsd can never have capabilities other than block_suspend
    neverallow gpsd self:capability *;
    neverallow gpsd self:capability2 ~block_suspend;