Anbox #1
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Anbox #1
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Add a void * pointer to struct ipc_namespace. The access rules are: 1. (un)register ops with (un)register_peripc_operations() 2. call ipc_assign_generic() to put private data on the ipc_namespace 3. call ipc_access_generic() to access the private data 4. do not change the pointer during the lifetime of ipc_namespace Modeled after generic net-ns pointers (commit dec827d), but simplified to accommodate a single user for now (reduce code churn): 5. only one caller can register at a time 6. caller must register at boot time (not to be used by modules) Signed-off-by: Oren Laadan <orenl@cellrox.com> Signed-off-by: Amir Goldstein <cardoe@cardoe.com>
Add namespaces support for the Android binder driver. As binder is an IPC mechanism, tie its namespace to IPC_NS. In binder, the first process to call BINDER_SET_CONTEXT_MGR ioctl becomes the manager with context 0, and thereafter IPC is realized through binder handles obtained from this manager. For namespaces, associate a separate binder state with each namespace so each namespace has its own context manager. Binder users within a namespace interact only with the context manager there. This suffices because binder does not allow IPC not via the context manager. Currently, statistics remain global, except for the list of processes that hold an open binder device (reported per namespace). Signed-off-by: Oren Laadan <orenl@cellrox.com> Acked-by: Amir Goldstein <cardoe@cardoe.com>
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