diff options
Diffstat (limited to 'include/linux/lockd')
| -rw-r--r-- | include/linux/lockd/bind.h | 60 | ||||
| -rw-r--r-- | include/linux/lockd/debug.h | 43 | ||||
| -rw-r--r-- | include/linux/lockd/lockd.h | 365 | ||||
| -rw-r--r-- | include/linux/lockd/nlm.h | 57 | ||||
| -rw-r--r-- | include/linux/lockd/share.h | 31 | ||||
| -rw-r--r-- | include/linux/lockd/xdr.h | 118 | ||||
| -rw-r--r-- | include/linux/lockd/xdr4.h | 47 |
7 files changed, 721 insertions, 0 deletions
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h new file mode 100644 index 000000000..4d24d6457 --- /dev/null +++ b/include/linux/lockd/bind.h @@ -0,0 +1,60 @@ +/* + * linux/include/linux/lockd/bind.h + * + * This is the part of lockd visible to nfsd and the nfs client. + * + * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_LOCKD_BIND_H +#define LINUX_LOCKD_BIND_H + +#include <linux/lockd/nlm.h> +/* need xdr-encoded error codes too, so... */ +#include <linux/lockd/xdr.h> +#ifdef CONFIG_LOCKD_V4 +#include <linux/lockd/xdr4.h> +#endif + +/* Dummy declarations */ +struct svc_rqst; + +/* + * This is the set of functions for lockd->nfsd communication + */ +struct nlmsvc_binding { + __be32 (*fopen)(struct svc_rqst *, + struct nfs_fh *, + struct file **); + void (*fclose)(struct file *); +}; + +extern struct nlmsvc_binding * nlmsvc_ops; + +/* + * Similar to nfs_client_initdata, but without the NFS-specific + * rpc_ops field. + */ +struct nlmclnt_initdata { + const char *hostname; + const struct sockaddr *address; + size_t addrlen; + unsigned short protocol; + u32 nfs_version; + int noresvport; + struct net *net; +}; + +/* + * Functions exported by the lockd module + */ + +extern struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init); +extern void nlmclnt_done(struct nlm_host *host); + +extern int nlmclnt_proc(struct nlm_host *host, int cmd, + struct file_lock *fl); +extern int lockd_up(struct net *net); +extern void lockd_down(struct net *net); + +#endif /* LINUX_LOCKD_BIND_H */ diff --git a/include/linux/lockd/debug.h b/include/linux/lockd/debug.h new file mode 100644 index 000000000..0ca810993 --- /dev/null +++ b/include/linux/lockd/debug.h @@ -0,0 +1,43 @@ +/* + * linux/include/linux/lockd/debug.h + * + * Debugging stuff. + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_LOCKD_DEBUG_H +#define LINUX_LOCKD_DEBUG_H + +#ifdef __KERNEL__ + +#include <linux/sunrpc/debug.h> + +/* + * Enable lockd debugging. + * Requires RPC_DEBUG. + */ +#undef ifdebug +#if IS_ENABLED(CONFIG_SUNRPC_DEBUG) +# define ifdebug(flag) if (unlikely(nlm_debug & NLMDBG_##flag)) +#else +# define ifdebug(flag) if (0) +#endif + +#endif /* __KERNEL__ */ + +/* + * Debug flags + */ +#define NLMDBG_SVC 0x0001 +#define NLMDBG_CLIENT 0x0002 +#define NLMDBG_CLNTLOCK 0x0004 +#define NLMDBG_SVCLOCK 0x0008 +#define NLMDBG_MONITOR 0x0010 +#define NLMDBG_CLNTSUBS 0x0020 +#define NLMDBG_SVCSUBS 0x0040 +#define NLMDBG_HOSTCACHE 0x0080 +#define NLMDBG_XDR 0x0100 +#define NLMDBG_ALL 0x7fff + +#endif /* LINUX_LOCKD_DEBUG_H */ diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h new file mode 100644 index 000000000..ff82a3287 --- /dev/null +++ b/include/linux/lockd/lockd.h @@ -0,0 +1,365 @@ +/* + * linux/include/linux/lockd/lockd.h + * + * General-purpose lockd include file. + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_LOCKD_LOCKD_H +#define LINUX_LOCKD_LOCKD_H + +#ifdef __KERNEL__ + +#include <linux/in.h> +#include <linux/in6.h> +#include <net/ipv6.h> +#include <linux/fs.h> +#include <linux/kref.h> +#include <linux/utsname.h> +#include <linux/lockd/bind.h> +#include <linux/lockd/xdr.h> +#ifdef CONFIG_LOCKD_V4 +#include <linux/lockd/xdr4.h> +#endif +#include <linux/lockd/debug.h> +#include <linux/sunrpc/svc.h> + +/* + * Version string + */ +#define LOCKD_VERSION "0.5" + +/* + * Default timeout for RPC calls (seconds) + */ +#define LOCKD_DFLT_TIMEO 10 + +/* + * Lockd host handle (used both by the client and server personality). + */ +struct nlm_host { + struct hlist_node h_hash; /* doubly linked list */ + struct sockaddr_storage h_addr; /* peer address */ + size_t h_addrlen; + struct sockaddr_storage h_srcaddr; /* our address (optional) */ + size_t h_srcaddrlen; + struct rpc_clnt *h_rpcclnt; /* RPC client to talk to peer */ + char *h_name; /* remote hostname */ + u32 h_version; /* interface version */ + unsigned short h_proto; /* transport proto */ + unsigned short h_reclaiming : 1, + h_server : 1, /* server side, not client side */ + h_noresvport : 1, + h_inuse : 1; + wait_queue_head_t h_gracewait; /* wait while reclaiming */ + struct rw_semaphore h_rwsem; /* Reboot recovery lock */ + u32 h_state; /* pseudo-state counter */ + u32 h_nsmstate; /* true remote NSM state */ + u32 h_pidcount; /* Pseudopids */ + atomic_t h_count; /* reference count */ + struct mutex h_mutex; /* mutex for pmap binding */ + unsigned long h_nextrebind; /* next portmap call */ + unsigned long h_expires; /* eligible for GC */ + struct list_head h_lockowners; /* Lockowners for the client */ + spinlock_t h_lock; + struct list_head h_granted; /* Locks in GRANTED state */ + struct list_head h_reclaim; /* Locks in RECLAIM state */ + struct nsm_handle *h_nsmhandle; /* NSM status handle */ + char *h_addrbuf; /* address eyecatcher */ + struct net *net; /* host net */ +}; + +/* + * The largest string sm_addrbuf should hold is a full-size IPv6 address + * (no "::" anywhere) with a scope ID. The buffer size is computed to + * hold eight groups of colon-separated four-hex-digit numbers, a + * percent sign, a scope id (at most 32 bits, in decimal), and NUL. + */ +#define NSM_ADDRBUF ((8 * 4 + 7) + (1 + 10) + 1) + +struct nsm_handle { + struct list_head sm_link; + atomic_t sm_count; + char *sm_mon_name; + char *sm_name; + struct sockaddr_storage sm_addr; + size_t sm_addrlen; + unsigned int sm_monitored : 1, + sm_sticky : 1; /* don't unmonitor */ + struct nsm_private sm_priv; + char sm_addrbuf[NSM_ADDRBUF]; +}; + +/* + * Rigorous type checking on sockaddr type conversions + */ +static inline struct sockaddr_in *nlm_addr_in(const struct nlm_host *host) +{ + return (struct sockaddr_in *)&host->h_addr; +} + +static inline struct sockaddr *nlm_addr(const struct nlm_host *host) +{ + return (struct sockaddr *)&host->h_addr; +} + +static inline struct sockaddr_in *nlm_srcaddr_in(const struct nlm_host *host) +{ + return (struct sockaddr_in *)&host->h_srcaddr; +} + +static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host) +{ + return (struct sockaddr *)&host->h_srcaddr; +} + +/* + * Map an fl_owner_t into a unique 32-bit "pid" + */ +struct nlm_lockowner { + struct list_head list; + atomic_t count; + + struct nlm_host *host; + fl_owner_t owner; + uint32_t pid; +}; + +struct nlm_wait; + +/* + * Memory chunk for NLM client RPC request. + */ +#define NLMCLNT_OHSIZE ((__NEW_UTS_LEN) + 10u) +struct nlm_rqst { + atomic_t a_count; + unsigned int a_flags; /* initial RPC task flags */ + struct nlm_host * a_host; /* host handle */ + struct nlm_args a_args; /* arguments */ + struct nlm_res a_res; /* result */ + struct nlm_block * a_block; + unsigned int a_retries; /* Retry count */ + u8 a_owner[NLMCLNT_OHSIZE]; +}; + +/* + * This struct describes a file held open by lockd on behalf of + * an NFS client. + */ +struct nlm_file { + struct hlist_node f_list; /* linked list */ + struct nfs_fh f_handle; /* NFS file handle */ + struct file * f_file; /* VFS file pointer */ + struct nlm_share * f_shares; /* DOS shares */ + struct list_head f_blocks; /* blocked locks */ + unsigned int f_locks; /* guesstimate # of locks */ + unsigned int f_count; /* reference count */ + struct mutex f_mutex; /* avoid concurrent access */ +}; + +/* + * This is a server block (i.e. a lock requested by some client which + * couldn't be granted because of a conflicting lock). + */ +#define NLM_NEVER (~(unsigned long) 0) +/* timeout on non-blocking call: */ +#define NLM_TIMEOUT (7 * HZ) + +struct nlm_block { + struct kref b_count; /* Reference count */ + struct list_head b_list; /* linked list of all blocks */ + struct list_head b_flist; /* linked list (per file) */ + struct nlm_rqst * b_call; /* RPC args & callback info */ + struct svc_serv * b_daemon; /* NLM service */ + struct nlm_host * b_host; /* host handle for RPC clnt */ + unsigned long b_when; /* next re-xmit */ + unsigned int b_id; /* block id */ + unsigned char b_granted; /* VFS granted lock */ + struct nlm_file * b_file; /* file in question */ + struct cache_req * b_cache_req; /* deferred request handling */ + struct cache_deferred_req * b_deferred_req; + unsigned int b_flags; /* block flags */ +#define B_QUEUED 1 /* lock queued */ +#define B_GOT_CALLBACK 2 /* got lock or conflicting lock */ +#define B_TIMED_OUT 4 /* filesystem too slow to respond */ +}; + +/* + * Global variables + */ +extern const struct rpc_program nlm_program; +extern struct svc_procedure nlmsvc_procedures[]; +#ifdef CONFIG_LOCKD_V4 +extern struct svc_procedure nlmsvc_procedures4[]; +#endif +extern int nlmsvc_grace_period; +extern unsigned long nlmsvc_timeout; +extern bool nsm_use_hostnames; +extern u32 nsm_local_state; + +/* + * Lockd client functions + */ +struct nlm_rqst * nlm_alloc_call(struct nlm_host *host); +int nlm_async_call(struct nlm_rqst *, u32, const struct rpc_call_ops *); +int nlm_async_reply(struct nlm_rqst *, u32, const struct rpc_call_ops *); +void nlmclnt_release_call(struct nlm_rqst *); +struct nlm_wait * nlmclnt_prepare_block(struct nlm_host *host, struct file_lock *fl); +void nlmclnt_finish_block(struct nlm_wait *block); +int nlmclnt_block(struct nlm_wait *block, struct nlm_rqst *req, long timeout); +__be32 nlmclnt_grant(const struct sockaddr *addr, + const struct nlm_lock *lock); +void nlmclnt_recovery(struct nlm_host *); +int nlmclnt_reclaim(struct nlm_host *, struct file_lock *, + struct nlm_rqst *); +void nlmclnt_next_cookie(struct nlm_cookie *); + +/* + * Host cache + */ +struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap, + const size_t salen, + const unsigned short protocol, + const u32 version, + const char *hostname, + int noresvport, + struct net *net); +void nlmclnt_release_host(struct nlm_host *); +struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp, + const char *hostname, + const size_t hostname_len); +void nlmsvc_release_host(struct nlm_host *); +struct rpc_clnt * nlm_bind_host(struct nlm_host *); +void nlm_rebind_host(struct nlm_host *); +struct nlm_host * nlm_get_host(struct nlm_host *); +void nlm_shutdown_hosts(void); +void nlm_shutdown_hosts_net(struct net *net); +void nlm_host_rebooted(const struct nlm_reboot *); + +/* + * Host monitoring + */ +int nsm_monitor(const struct nlm_host *host); +void nsm_unmonitor(const struct nlm_host *host); + +struct nsm_handle *nsm_get_handle(const struct sockaddr *sap, + const size_t salen, + const char *hostname, + const size_t hostname_len); +struct nsm_handle *nsm_reboot_lookup(const struct nlm_reboot *info); +void nsm_release(struct nsm_handle *nsm); + +/* + * This is used in garbage collection and resource reclaim + * A return value != 0 means destroy the lock/block/share + */ +typedef int (*nlm_host_match_fn_t)(void *cur, struct nlm_host *ref); + +/* + * Server-side lock handling + */ +__be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *, + struct nlm_host *, struct nlm_lock *, int, + struct nlm_cookie *, int); +__be32 nlmsvc_unlock(struct net *net, struct nlm_file *, struct nlm_lock *); +__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *, + struct nlm_host *, struct nlm_lock *, + struct nlm_lock *, struct nlm_cookie *); +__be32 nlmsvc_cancel_blocked(struct net *net, struct nlm_file *, struct nlm_lock *); +unsigned long nlmsvc_retry_blocked(void); +void nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *, + nlm_host_match_fn_t match); +void nlmsvc_grant_reply(struct nlm_cookie *, __be32); +void nlmsvc_release_call(struct nlm_rqst *); + +/* + * File handling for the server personality + */ +__be32 nlm_lookup_file(struct svc_rqst *, struct nlm_file **, + struct nfs_fh *); +void nlm_release_file(struct nlm_file *); +void nlmsvc_mark_resources(struct net *); +void nlmsvc_free_host_resources(struct nlm_host *); +void nlmsvc_invalidate_all(void); + +/* + * Cluster failover support + */ +int nlmsvc_unlock_all_by_sb(struct super_block *sb); +int nlmsvc_unlock_all_by_ip(struct sockaddr *server_addr); + +static inline struct inode *nlmsvc_file_inode(struct nlm_file *file) +{ + return file_inode(file->f_file); +} + +static inline int __nlm_privileged_request4(const struct sockaddr *sap) +{ + const struct sockaddr_in *sin = (struct sockaddr_in *)sap; + + if (ntohs(sin->sin_port) > 1023) + return 0; + + return ipv4_is_loopback(sin->sin_addr.s_addr); +} + +#if IS_ENABLED(CONFIG_IPV6) +static inline int __nlm_privileged_request6(const struct sockaddr *sap) +{ + const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sap; + + if (ntohs(sin6->sin6_port) > 1023) + return 0; + + if (ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_MAPPED) + return ipv4_is_loopback(sin6->sin6_addr.s6_addr32[3]); + + return ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LOOPBACK; +} +#else /* IS_ENABLED(CONFIG_IPV6) */ +static inline int __nlm_privileged_request6(const struct sockaddr *sap) +{ + return 0; +} +#endif /* IS_ENABLED(CONFIG_IPV6) */ + +/* + * Ensure incoming requests are from local privileged callers. + * + * Return TRUE if sender is local and is connecting via a privileged port; + * otherwise return FALSE. + */ +static inline int nlm_privileged_requester(const struct svc_rqst *rqstp) +{ + const struct sockaddr *sap = svc_addr(rqstp); + + switch (sap->sa_family) { + case AF_INET: + return __nlm_privileged_request4(sap); + case AF_INET6: + return __nlm_privileged_request6(sap); + default: + return 0; + } +} + +/* + * Compare two NLM locks. + * When the second lock is of type F_UNLCK, this acts like a wildcard. + */ +static inline int nlm_compare_locks(const struct file_lock *fl1, + const struct file_lock *fl2) +{ + return fl1->fl_pid == fl2->fl_pid + && fl1->fl_owner == fl2->fl_owner + && fl1->fl_start == fl2->fl_start + && fl1->fl_end == fl2->fl_end + &&(fl1->fl_type == fl2->fl_type || fl2->fl_type == F_UNLCK); +} + +extern const struct lock_manager_operations nlmsvc_lock_operations; + +#endif /* __KERNEL__ */ + +#endif /* LINUX_LOCKD_LOCKD_H */ diff --git a/include/linux/lockd/nlm.h b/include/linux/lockd/nlm.h new file mode 100644 index 000000000..d9d46e442 --- /dev/null +++ b/include/linux/lockd/nlm.h @@ -0,0 +1,57 @@ +/* + * linux/include/linux/lockd/nlm.h + * + * Declarations for the Network Lock Manager protocol. + * + * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_LOCKD_NLM_H +#define LINUX_LOCKD_NLM_H + + +/* Maximum file offset in file_lock.fl_end */ +# define NLM_OFFSET_MAX ((s32) 0x7fffffff) +# define NLM4_OFFSET_MAX ((s64) ((~(u64)0) >> 1)) + +/* Return states for NLM */ +enum { + NLM_LCK_GRANTED = 0, + NLM_LCK_DENIED = 1, + NLM_LCK_DENIED_NOLOCKS = 2, + NLM_LCK_BLOCKED = 3, + NLM_LCK_DENIED_GRACE_PERIOD = 4, +#ifdef CONFIG_LOCKD_V4 + NLM_DEADLCK = 5, + NLM_ROFS = 6, + NLM_STALE_FH = 7, + NLM_FBIG = 8, + NLM_FAILED = 9, +#endif +}; + +#define NLM_PROGRAM 100021 + +#define NLMPROC_NULL 0 +#define NLMPROC_TEST 1 +#define NLMPROC_LOCK 2 +#define NLMPROC_CANCEL 3 +#define NLMPROC_UNLOCK 4 +#define NLMPROC_GRANTED 5 +#define NLMPROC_TEST_MSG 6 +#define NLMPROC_LOCK_MSG 7 +#define NLMPROC_CANCEL_MSG 8 +#define NLMPROC_UNLOCK_MSG 9 +#define NLMPROC_GRANTED_MSG 10 +#define NLMPROC_TEST_RES 11 +#define NLMPROC_LOCK_RES 12 +#define NLMPROC_CANCEL_RES 13 +#define NLMPROC_UNLOCK_RES 14 +#define NLMPROC_GRANTED_RES 15 +#define NLMPROC_NSM_NOTIFY 16 /* statd callback */ +#define NLMPROC_SHARE 20 +#define NLMPROC_UNSHARE 21 +#define NLMPROC_NM_LOCK 22 +#define NLMPROC_FREE_ALL 23 + +#endif /* LINUX_LOCKD_NLM_H */ diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h new file mode 100644 index 000000000..630c5bf69 --- /dev/null +++ b/include/linux/lockd/share.h @@ -0,0 +1,31 @@ +/* + * linux/include/linux/lockd/share.h + * + * DOS share management for lockd. + * + * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LINUX_LOCKD_SHARE_H +#define LINUX_LOCKD_SHARE_H + +/* + * DOS share for a specific file + */ +struct nlm_share { + struct nlm_share * s_next; /* linked list */ + struct nlm_host * s_host; /* client host */ + struct nlm_file * s_file; /* shared file */ + struct xdr_netobj s_owner; /* owner handle */ + u32 s_access; /* access mode */ + u32 s_mode; /* deny mode */ +}; + +__be32 nlmsvc_share_file(struct nlm_host *, struct nlm_file *, + struct nlm_args *); +__be32 nlmsvc_unshare_file(struct nlm_host *, struct nlm_file *, + struct nlm_args *); +void nlmsvc_traverse_shares(struct nlm_host *, struct nlm_file *, + nlm_host_match_fn_t); + +#endif /* LINUX_LOCKD_SHARE_H */ diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h new file mode 100644 index 000000000..d39ed1cc5 --- /dev/null +++ b/include/linux/lockd/xdr.h @@ -0,0 +1,118 @@ +/* + * linux/include/linux/lockd/xdr.h + * + * XDR types for the NLM protocol + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LOCKD_XDR_H +#define LOCKD_XDR_H + +#include <linux/fs.h> +#include <linux/nfs.h> +#include <linux/sunrpc/xdr.h> + +#define SM_MAXSTRLEN 1024 +#define SM_PRIV_SIZE 16 + +struct nsm_private { + unsigned char data[SM_PRIV_SIZE]; +}; + +struct svc_rqst; + +#define NLM_MAXCOOKIELEN 32 +#define NLM_MAXSTRLEN 1024 + +#define nlm_granted cpu_to_be32(NLM_LCK_GRANTED) +#define nlm_lck_denied cpu_to_be32(NLM_LCK_DENIED) +#define nlm_lck_denied_nolocks cpu_to_be32(NLM_LCK_DENIED_NOLOCKS) +#define nlm_lck_blocked cpu_to_be32(NLM_LCK_BLOCKED) +#define nlm_lck_denied_grace_period cpu_to_be32(NLM_LCK_DENIED_GRACE_PERIOD) + +#define nlm_drop_reply cpu_to_be32(30000) + +/* Lock info passed via NLM */ +struct nlm_lock { + char * caller; + unsigned int len; /* length of "caller" */ + struct nfs_fh fh; + struct xdr_netobj oh; + u32 svid; + struct file_lock fl; +}; + +/* + * NLM cookies. Technically they can be 1K, but Linux only uses 8 bytes. + * FreeBSD uses 16, Apple Mac OS X 10.3 uses 20. Therefore we set it to + * 32 bytes. + */ + +struct nlm_cookie +{ + unsigned char data[NLM_MAXCOOKIELEN]; + unsigned int len; +}; + +/* + * Generic lockd arguments for all but sm_notify + */ +struct nlm_args { + struct nlm_cookie cookie; + struct nlm_lock lock; + u32 block; + u32 reclaim; + u32 state; + u32 monitor; + u32 fsm_access; + u32 fsm_mode; +}; + +typedef struct nlm_args nlm_args; + +/* + * Generic lockd result + */ +struct nlm_res { + struct nlm_cookie cookie; + __be32 status; + struct nlm_lock lock; +}; + +/* + * statd callback when client has rebooted + */ +struct nlm_reboot { + char *mon; + unsigned int len; + u32 state; + struct nsm_private priv; +}; + +/* + * Contents of statd callback when monitored host rebooted + */ +#define NLMSVC_XDRSIZE sizeof(struct nlm_args) + +int nlmsvc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlmsvc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlmsvc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlmsvc_encode_void(struct svc_rqst *, __be32 *, void *); +int nlmsvc_decode_void(struct svc_rqst *, __be32 *, void *); +int nlmsvc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlmsvc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlmsvc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *); +/* +int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); + */ + +#endif /* LOCKD_XDR_H */ diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h new file mode 100644 index 000000000..e58c88b52 --- /dev/null +++ b/include/linux/lockd/xdr4.h @@ -0,0 +1,47 @@ +/* + * linux/include/linux/lockd/xdr4.h + * + * XDR types for the NLM protocol + * + * Copyright (C) 1996 Olaf Kirch <okir@monad.swb.de> + */ + +#ifndef LOCKD_XDR4_H +#define LOCKD_XDR4_H + +#include <linux/fs.h> +#include <linux/nfs.h> +#include <linux/sunrpc/xdr.h> +#include <linux/lockd/xdr.h> + +/* error codes new to NLMv4 */ +#define nlm4_deadlock cpu_to_be32(NLM_DEADLCK) +#define nlm4_rofs cpu_to_be32(NLM_ROFS) +#define nlm4_stale_fh cpu_to_be32(NLM_STALE_FH) +#define nlm4_fbig cpu_to_be32(NLM_FBIG) +#define nlm4_failed cpu_to_be32(NLM_FAILED) + + + +int nlm4svc_decode_testargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_encode_testres(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlm4svc_decode_lockargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_decode_cancargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_decode_unlockargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_encode_res(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlm4svc_decode_res(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlm4svc_encode_void(struct svc_rqst *, __be32 *, void *); +int nlm4svc_decode_void(struct svc_rqst *, __be32 *, void *); +int nlm4svc_decode_shareargs(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_encode_shareres(struct svc_rqst *, __be32 *, struct nlm_res *); +int nlm4svc_decode_notify(struct svc_rqst *, __be32 *, struct nlm_args *); +int nlm4svc_decode_reboot(struct svc_rqst *, __be32 *, struct nlm_reboot *); +/* +int nlmclt_encode_testargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_lockargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_cancargs(struct rpc_rqst *, u32 *, struct nlm_args *); +int nlmclt_encode_unlockargs(struct rpc_rqst *, u32 *, struct nlm_args *); + */ +extern const struct rpc_version nlm_version4; + +#endif /* LOCKD_XDR4_H */ |