kernel/bpf/syscall.c

1611 static int map_update_elem(union bpf_attr *attr, bpfptr_t uattr)
1613 	bpfptr_t ukey = make_bpfptr(attr->key, uattr.is_kernel);
1614 	bpfptr_t uvalue = make_bpfptr(attr->value, uattr.is_kernel);
1669 static int map_delete_elem(union bpf_attr *attr, bpfptr_t uattr)
1671 	bpfptr_t ukey = make_bpfptr(attr->key, uattr.is_kernel);
1791 			     union bpf_attr __user *uattr)
1810 	if (put_user(0, &uattr->batch.count))
1837 	if (copy_to_user(&uattr->batch.count, &cp, sizeof(cp)))
1847 			     union bpf_attr __user *uattr)
1869 	if (put_user(0, &uattr->batch.count))
1897 	if (copy_to_user(&uattr->batch.count, &cp, sizeof(cp)))
1910 				    union bpf_attr __user *uattr)
1933 	if (put_user(0, &uattr->batch.count))
1998 	if ((copy_to_user(&uattr->batch.count, &cp, sizeof(cp)) ||
2696 static int bpf_prog_load(union bpf_attr *attr, bpfptr_t uattr, u32 uattr_size)
2845 			     make_bpfptr(attr->insns, uattr.is_kernel),
2850 				make_bpfptr(attr->license, uattr.is_kernel),
2908 	err = bpf_check(&prog, attr, uattr, uattr_size);
4206 			  union bpf_attr __user *uattr)
4245 		return cgroup_bpf_prog_query(attr, uattr);
4247 		return lirc_prog_query(attr, uattr);
4250 		return netns_bpf_prog_query(attr, uattr);
4255 		return sock_map_bpf_prog_query(attr, uattr);
4258 		return tcx_prog_query(attr, uattr);
4261 		return netkit_prog_query(attr, uattr);
4270 			     union bpf_attr __user *uattr)
4291 		ret = prog->aux->ops->test_run(prog, attr, uattr);
4300 			       union bpf_attr __user *uattr,
4320 		err = put_user(next_id, &uattr->next_id);
4563 				   union bpf_attr __user *uattr)
4843 	    put_user(info_len, &uattr->info.info_len))
4852 				  union bpf_attr __user *uattr)
4890 	    put_user(info_len, &uattr->info.info_len))
4899 				  union bpf_attr __user *uattr)
4909 	return btf_get_info_by_fd(btf, attr, uattr);
4915 				  union bpf_attr __user *uattr)
4943 	    put_user(info_len, &uattr->info.info_len))
4953 				  union bpf_attr __user *uattr)
4968 					      uattr);
4971 					     uattr);
4973 		err = bpf_btf_get_info_by_fd(f.file, f.file->private_data, attr, uattr);
4976 					      attr, uattr);
4986 static int bpf_btf_load(const union bpf_attr *attr, bpfptr_t uattr, __u32 uattr_size)
5013 	return btf_new_fd(attr, uattr, uattr_size);
5030 				    union bpf_attr __user *uattr,
5039 	if (put_user(len, &uattr->task_fd_query.buf_len))
5067 	if (put_user(prog_id, &uattr->task_fd_query.prog_id) ||
5068 	    put_user(fd_type, &uattr->task_fd_query.fd_type) ||
5069 	    put_user(probe_offset, &uattr->task_fd_query.probe_offset) ||
5070 	    put_user(probe_addr, &uattr->task_fd_query.probe_addr))
5079 			     union bpf_attr __user *uattr)
5117 			err = bpf_task_fd_query_copy(attr, uattr,
5136 			err = bpf_task_fd_query_copy(attr, uattr, prog_id,
5162 			    union bpf_attr __user *uattr,
5192 		BPF_DO_BATCH(map->ops->map_lookup_batch, map, attr, uattr);
5194 		BPF_DO_BATCH(map->ops->map_lookup_and_delete_batch, map, attr, uattr);
5196 		BPF_DO_BATCH(map->ops->map_update_batch, map, f.file, attr, uattr);
5198 		BPF_DO_BATCH(map->ops->map_delete_batch, map, attr, uattr);
5209 static int link_create(union bpf_attr *attr, bpfptr_t uattr)
5254 			ret = bpf_iter_link_attach(attr, uattr, prog);
5648 static int __sys_bpf(int cmd, bpfptr_t uattr, unsigned int size)
5653 	err = bpf_check_uarg_tail_zero(uattr, sizeof(attr), size);
5660 	if (copy_from_bpfptr(&attr, uattr, size) != 0)
5675 		err = map_update_elem(&attr, uattr);
5678 		err = map_delete_elem(&attr, uattr);
5687 		err = bpf_prog_load(&attr, uattr, size);
5702 		err = bpf_prog_query(&attr, uattr.user);
5705 		err = bpf_prog_test_run(&attr, uattr.user);
5708 		err = bpf_obj_get_next_id(&attr, uattr.user,
5712 		err = bpf_obj_get_next_id(&attr, uattr.user,
5716 		err = bpf_obj_get_next_id(&attr, uattr.user,
5726 		err = bpf_obj_get_info_by_fd(&attr, uattr.user);
5732 		err = bpf_btf_load(&attr, uattr, size);
5738 		err = bpf_task_fd_query(&attr, uattr.user);
5744 		err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_LOOKUP_BATCH);
5747 		err = bpf_map_do_batch(&attr, uattr.user,
5751 		err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_UPDATE_BATCH);
5754 		err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_DELETE_BATCH);
5757 		err = link_create(&attr, uattr);
5766 		err = bpf_obj_get_next_id(&attr, uattr.user,
5792 SYSCALL_DEFINE3(bpf, int, cmd, union bpf_attr __user *, uattr, unsigned int, size)
5794 	return __sys_bpf(cmd, USER_BPFPTR(uattr), size);