info.h (973B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _RDS_INFO_H 3#define _RDS_INFO_H 4 5struct rds_info_lengths { 6 unsigned int nr; 7 unsigned int each; 8}; 9 10struct rds_info_iterator; 11 12/* 13 * These functions must fill in the fields of @lens to reflect the size 14 * of the available info source. If the snapshot fits in @len then it 15 * should be copied using @iter. The caller will deduce if it was copied 16 * or not by comparing the lengths. 17 */ 18typedef void (*rds_info_func)(struct socket *sock, unsigned int len, 19 struct rds_info_iterator *iter, 20 struct rds_info_lengths *lens); 21 22void rds_info_register_func(int optname, rds_info_func func); 23void rds_info_deregister_func(int optname, rds_info_func func); 24int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval, 25 int __user *optlen); 26void rds_info_copy(struct rds_info_iterator *iter, void *data, 27 unsigned long bytes); 28void rds_info_iter_unmap(struct rds_info_iterator *iter); 29 30 31#endif