/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB *//* * Copyright (c) 2010 Intel Corporation.  All rights reserved. */ #ifndef _RDMA_IB_H#define _RDMA_IB_H #include <linux/types.h>#include <linux/sched.h>#include <linux/cred.h>#include <linux/uaccess.h>#include <linux/fs.h> struct ib_addr {	union {		__u8		uib_addr8[16];		__be16		uib_addr16[8];		__be32		uib_addr32[4];		__be64		uib_addr64[2];	} ib_u;#define sib_addr8		ib_u.uib_addr8#define sib_addr16		ib_u.uib_addr16#define sib_addr32		ib_u.uib_addr32#define sib_addr64		ib_u.uib_addr64#define sib_raw			ib_u.uib_addr8#define sib_subnet_prefix	ib_u.uib_addr64[0]#define sib_interface_id	ib_u.uib_addr64[1]}; static inline bool ib_addr_any(const struct ib_addr *a){	return ((a->sib_addr64[0] | a->sib_addr64[1]) == 0);} static inline bool ib_addr_loopback(const struct ib_addr *a){	return ((a->sib_addr32[0] | a->sib_addr32[1] |		 a->sib_addr32[2] | (a->sib_addr32[3] ^ htonl(1))) == 0);} static inline void ib_addr_set(struct ib_addr *addr,			       __be32 w1, __be32 w2, __be32 w3, __be32 w4){	addr->sib_addr32[0] = w1;	addr->sib_addr32[1] = w2;	addr->sib_addr32[2] = w3;	addr->sib_addr32[3] = w4;} static inline int ib_addr_cmp(const struct ib_addr *a1, const struct ib_addr *a2){	return memcmp(a1, a2, sizeof(struct ib_addr));} struct sockaddr_ib {	unsigned short int	sib_family;	/* AF_IB */	__be16			sib_pkey;	__be32			sib_flowinfo;	struct ib_addr		sib_addr;	__be64			sib_sid;	__be64			sib_sid_mask;	__u64			sib_scope_id;}; /* * The IB interfaces that use write() as bi-directional ioctl() are * fundamentally unsafe, since there are lots of ways to trigger "write()" * calls from various contexts with elevated privileges. That includes the * traditional suid executable error message writes, but also various kernel * interfaces that can write to file descriptors. * * This function provides protection for the legacy API by restricting the * calling context. */static inline bool ib_safe_file_access(struct file *filp){	return filp->f_cred == current_cred();} #endif /* _RDMA_IB_H */