On Thu, Nov 05, 2020 at 03:47:48PM +0100, KP Singh wrote: > From: KP Singh <kpsingh@xxxxxxxxxx> > > Similar to bpf_local_storage for sockets and inodes add local storage > for task_struct. > > The life-cycle of storage is managed with the life-cycle of the > task_struct. i.e. the storage is destroyed along with the owning task > with a callback to the bpf_task_storage_free from the task_free LSM > hook. > > The BPF LSM allocates an __rcu pointer to the bpf_local_storage in > the security blob which are now stackable and can co-exist with other > LSMs. > > The userspace map operations can be done by using a pid fd as a key > passed to the lookup, update and delete operations. > > Acked-by: Song Liu <songliubraving@xxxxxx> > Signed-off-by: KP Singh <kpsingh@xxxxxxxxxx> Acked-by: Martin KaFai Lau <kafai@xxxxxx>
