1/* 2 * linux/include/linux/lockd/xdr.h 3 * 4 * XDR types for the NLM protocol 5 * 6 * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> 7 */ 8 9#ifndef LOCKD_XDR_H 10#define LOCKD_XDR_H 11 12#include <linux/fs.h> 13#include <linux/nfs.h> 14#include <linux/sunrpc/xdr.h> 15 16#define NLM_MAXSTRLEN 1024 17 18#define QUADLEN(len) (((len) + 3) >> 2) 19 20#define nlm_granted __constant_htonl(NLM_LCK_GRANTED) 21#define nlm_lck_denied __constant_htonl(NLM_LCK_DENIED) 22#define nlm_lck_denied_nolocks __constant_htonl(NLM_LCK_DENIED_NOLOCKS) 23#define nlm_lck_blocked __constant_htonl(NLM_LCK_BLOCKED) 24#define nlm_lck_denied_grace_period __constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD) 25 26/* Lock info passed via NLM */ 27struct nlm_lock { 28 char * caller; 29 int len; /* length of "caller" */ 30 struct nfs_fh fh; 31 struct xdr_netobj oh; 32 struct file_lock fl; 33}; 34 35/* 36 * NLM cookies. Technically they can be 1K, Nobody uses over 8 bytes 37 * however. 38 */ 39 40struct nlm_cookie 41{ 42 unsigned char data[8]; 43 unsigned int len; 44}; 45 46/* 47 * Generic lockd arguments for all but sm_notify 48 */ 49struct nlm_args { 50 struct nlm_cookie cookie; 51 struct nlm_lock lock; 52 u32 block; 53 u32 reclaim; 54 u32 state; 55 u32 monitor; 56 u32 fsm_access; 57 u32 fsm_mode; 58}; 59 60typedef struct nlm_args nlm_args; 61 62/* 63 * Generic lockd result 64 */ 65struct nlm_res { 66 struct nlm_cookie cookie; 67 u32 status; 68 struct nlm_lock lock; 69}; 70 71/* 72 * statd callback when client has rebooted 73 */ 74struct nlm_reboot { 75 char * mon; 76 int len; 77 u32 state; 78 u32 addr; 79}; 80 81/* 82 * Contents of statd callback when monitored host rebooted 83 */ 84#define NLMSVC_XDRSIZE sizeof(struct nlm_args) 85 86int nlmsvc_decode_testargs(struct svc_rqst *, u32 *, struct nlm_args *); 87int nlmsvc_encode_testres(struct svc_rqst *, u32 *, struct nlm_res *); 88int nlmsvc_decode_lockargs(struct svc_rqst *, u32 *, struct nlm_args *); 89int nlmsvc_decode_cancargs(struct svc_rqst *, u32 *, struct nlm_args *); 90int nlmsvc_decode_unlockargs(struct svc_rqst *, u32 *, struct nlm_args *); 91int nlmsvc_encode_res(struct svc_rqst *, u32 *, struct nlm_res *); 92int nlmsvc_decode_res(struct svc_rqst *, u32 *, struct nlm_res *); 93int nlmsvc_encode_void(struct svc_rqst *, u32 *, void *); 94int nlmsvc_decode_void(struct svc_rqst *, u32 *, void *); 95int nlmsvc_decode_shareargs(struct svc_rqst *, u32 *, struct nlm_args *); 96int nlmsvc_encode_shareres(struct svc_rqst *, u32 *, struct nlm_res *); 97int nlmsvc_decode_notify(struct svc_rqst *, u32 *, struct nlm_args *); 98int nlmsvc_decode_reboot(struct svc_rqst *, u32 *, struct nlm_reboot *); 99/* 100int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); 101int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); 102int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); 103int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); 104 */ 105 106#endif /* LOCKD_XDR_H */ 107