| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |  | 
| NeilBrown | d343fce | 2006-10-17 00:10:18 -0700 | [diff] [blame] | 16 | struct svc_rqst; | 
|  | 17 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | #define NLM_MAXCOOKIELEN    	32 | 
|  | 19 | #define NLM_MAXSTRLEN		1024 | 
|  | 20 |  | 
|  | 21 | #define	nlm_granted		__constant_htonl(NLM_LCK_GRANTED) | 
|  | 22 | #define	nlm_lck_denied		__constant_htonl(NLM_LCK_DENIED) | 
|  | 23 | #define	nlm_lck_denied_nolocks	__constant_htonl(NLM_LCK_DENIED_NOLOCKS) | 
|  | 24 | #define	nlm_lck_blocked		__constant_htonl(NLM_LCK_BLOCKED) | 
|  | 25 | #define	nlm_lck_denied_grace_period	__constant_htonl(NLM_LCK_DENIED_GRACE_PERIOD) | 
|  | 26 |  | 
| NeilBrown | d343fce | 2006-10-17 00:10:18 -0700 | [diff] [blame] | 27 | #define nlm_drop_reply		__constant_htonl(30000) | 
|  | 28 |  | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | /* Lock info passed via NLM */ | 
|  | 30 | struct nlm_lock { | 
|  | 31 | char *			caller; | 
|  | 32 | int			len; 	/* length of "caller" */ | 
|  | 33 | struct nfs_fh		fh; | 
|  | 34 | struct xdr_netobj	oh; | 
| Trond Myklebust | 7bab377 | 2006-03-20 13:44:06 -0500 | [diff] [blame] | 35 | u32			svid; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | struct file_lock	fl; | 
|  | 37 | }; | 
|  | 38 |  | 
|  | 39 | /* | 
|  | 40 | *	NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. | 
|  | 41 | *	FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to | 
|  | 42 | *	32 bytes. | 
|  | 43 | */ | 
|  | 44 |  | 
|  | 45 | struct nlm_cookie | 
|  | 46 | { | 
|  | 47 | unsigned char data[NLM_MAXCOOKIELEN]; | 
|  | 48 | unsigned int len; | 
|  | 49 | }; | 
|  | 50 |  | 
|  | 51 | /* | 
|  | 52 | * Generic lockd arguments for all but sm_notify | 
|  | 53 | */ | 
|  | 54 | struct nlm_args { | 
|  | 55 | struct nlm_cookie	cookie; | 
|  | 56 | struct nlm_lock		lock; | 
|  | 57 | u32			block; | 
|  | 58 | u32			reclaim; | 
|  | 59 | u32			state; | 
|  | 60 | u32			monitor; | 
|  | 61 | u32			fsm_access; | 
|  | 62 | u32			fsm_mode; | 
|  | 63 | }; | 
|  | 64 |  | 
|  | 65 | typedef struct nlm_args nlm_args; | 
|  | 66 |  | 
|  | 67 | /* | 
|  | 68 | * Generic lockd result | 
|  | 69 | */ | 
|  | 70 | struct nlm_res { | 
|  | 71 | struct nlm_cookie	cookie; | 
| Al Viro | e8c5c04 | 2006-12-13 00:35:03 -0800 | [diff] [blame] | 72 | __be32			status; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | struct nlm_lock		lock; | 
|  | 74 | }; | 
|  | 75 |  | 
|  | 76 | /* | 
|  | 77 | * statd callback when client has rebooted | 
|  | 78 | */ | 
|  | 79 | struct nlm_reboot { | 
|  | 80 | char *		mon; | 
|  | 81 | int		len; | 
|  | 82 | u32		state; | 
| Al Viro | e8c5c04 | 2006-12-13 00:35:03 -0800 | [diff] [blame] | 83 | __be32		addr; | 
|  | 84 | __be32		vers; | 
|  | 85 | __be32		proto; | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 86 | }; | 
|  | 87 |  | 
|  | 88 | /* | 
|  | 89 | * Contents of statd callback when monitored host rebooted | 
|  | 90 | */ | 
|  | 91 | #define NLMSVC_XDRSIZE		sizeof(struct nlm_args) | 
|  | 92 |  | 
| Al Viro | 52921e0 | 2006-10-19 23:28:46 -0700 | [diff] [blame] | 93 | int	nlmsvc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 94 | int	nlmsvc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *); | 
|  | 95 | int	nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 96 | int	nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 97 | int	nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 98 | int	nlmsvc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *); | 
|  | 99 | int	nlmsvc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *); | 
|  | 100 | int	nlmsvc_encode_void(struct svc_rqst *, __be32 *, void *); | 
|  | 101 | int	nlmsvc_decode_void(struct svc_rqst *, __be32 *, void *); | 
|  | 102 | int	nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 103 | int	nlmsvc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *); | 
|  | 104 | int	nlmsvc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *); | 
|  | 105 | int	nlmsvc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *); | 
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | /* | 
|  | 107 | int	nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); | 
|  | 108 | int	nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | 
|  | 109 | int	nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); | 
|  | 110 | int	nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); | 
|  | 111 | */ | 
|  | 112 |  | 
|  | 113 | #endif /* LOCKD_XDR_H */ |