X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/b0d623f7f2ae71ed96e60569f61f9a9a27016e80..4ba76501152d51ccb5647018f3192c6096367d48:/bsd/nfs/nfs_lock.h?ds=sidebyside diff --git a/bsd/nfs/nfs_lock.h b/bsd/nfs/nfs_lock.h index 7bd4e91a8..b360849e6 100644 --- a/bsd/nfs/nfs_lock.h +++ b/bsd/nfs/nfs_lock.h @@ -1,8 +1,8 @@ /* - * Copyright (c) 2002-2008 Apple Inc. All rights reserved. + * Copyright (c) 2002-2010 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ - * + * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in @@ -11,10 +11,10 @@ * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. - * + * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. - * + * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, @@ -22,7 +22,7 @@ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. - * + * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /*- @@ -73,32 +73,34 @@ /* * The structure that the kernel hands lockd for each lock request. */ -#define LOCKD_MSG_VERSION 3 +#define LOCKD_MSG_VERSION 3 typedef struct nfs_lock_msg { - int lm_version; /* LOCKD_MSG version */ - int lm_flags; /* request flags */ - u_int64_t lm_xid; /* unique message transaction ID */ - struct flock lm_fl; /* The lock request. */ - struct sockaddr_storage lm_addr; /* The address. */ - int lm_fh_len; /* The file handle length. */ - struct xucred lm_cred; /* user cred for lock req */ - u_int8_t lm_fh[NFSV3_MAX_FH_SIZE]; /* The file handle. */ + int lm_version; /* LOCKD_MSG version */ + int lm_flags; /* request flags */ + u_int64_t lm_xid; /* unique message transaction ID */ + struct flock lm_fl; /* The lock request. */ + struct sockaddr_storage lm_addr; /* The address. */ + int lm_fh_len; /* The file handle length. */ + struct xucred lm_cred; /* user cred for lock req */ + u_int8_t lm_fh[NFSV3_MAX_FH_SIZE]; /* The file handle. */ } LOCKD_MSG; /* lm_flags */ -#define LOCKD_MSG_BLOCK 0x0001 /* a blocking request */ -#define LOCKD_MSG_TEST 0x0002 /* just a lock test */ -#define LOCKD_MSG_NFSV3 0x0004 /* NFSv3 request */ -#define LOCKD_MSG_CANCEL 0x0008 /* cancelling blocked request */ -#define LOCKD_MSG_DENIED_GRACE 0x0010 /* lock denied due to grace period */ +#define LOCKD_MSG_BLOCK 0x0001 /* a blocking request */ +#define LOCKD_MSG_TEST 0x0002 /* just a lock test */ +#define LOCKD_MSG_NFSV3 0x0004 /* NFSv3 request */ +#define LOCKD_MSG_CANCEL 0x0008 /* cancelling blocked request */ +#define LOCKD_MSG_DENIED_GRACE 0x0010 /* lock denied due to grace period */ +#define LOCKD_MSG_RECLAIM 0x0020 /* lock reclaim request */ +#define LOCKD_MSG_TCP 0x0040 /* (try to) use TCP for request */ /* The structure used to maintain the pending request queue */ typedef struct nfs_lock_msg_request { - TAILQ_ENTRY(nfs_lock_msg_request) lmr_next; /* in-kernel pending request list */ - int lmr_answered; /* received an answer? */ - int lmr_errno; /* return status */ - int lmr_saved_errno; /* original return status */ - LOCKD_MSG lmr_msg; /* the message */ + TAILQ_ENTRY(nfs_lock_msg_request) lmr_next; /* in-kernel pending request list */ + int lmr_answered; /* received an answer? */ + int lmr_errno; /* return status */ + int lmr_saved_errno; /* original return status */ + LOCKD_MSG lmr_msg; /* the message */ } LOCKD_MSG_REQUEST; TAILQ_HEAD(nfs_lock_msg_queue, nfs_lock_msg_request); @@ -108,31 +110,46 @@ typedef struct nfs_lock_msg_queue LOCKD_MSG_QUEUE; /* * The structure that lockd hands the kernel for each lock answer. */ -#define LOCKD_ANS_VERSION 2 +#define LOCKD_ANS_VERSION 2 struct lockd_ans { - int la_version; /* lockd_ans version */ - int la_errno; /* return status */ - u_int64_t la_xid; /* unique message transaction ID */ - int la_flags; /* answer flags */ - pid_t la_pid; /* pid of lock requester/owner */ - off_t la_start; /* lock starting offset */ - off_t la_len; /* lock length */ - int la_fh_len; /* The file handle length. */ - u_int8_t la_fh[NFSV3_MAX_FH_SIZE];/* The file handle. */ + int la_version; /* lockd_ans version */ + int la_errno; /* return status */ + u_int64_t la_xid; /* unique message transaction ID */ + int la_flags; /* answer flags */ + pid_t la_pid; /* pid of lock requester/owner */ + off_t la_start; /* lock starting offset */ + off_t la_len; /* lock length */ + int la_fh_len; /* The file handle length. */ + u_int8_t la_fh[NFSV3_MAX_FH_SIZE];/* The file handle. */ }; /* la_flags */ -#define LOCKD_ANS_GRANTED 0x0001 /* NLM_GRANTED request */ -#define LOCKD_ANS_LOCK_INFO 0x0002 /* lock info valid */ -#define LOCKD_ANS_LOCK_EXCL 0x0004 /* lock is exclusive */ -#define LOCKD_ANS_DENIED_GRACE 0x0008 /* lock denied due to grace period */ +#define LOCKD_ANS_GRANTED 0x0001 /* NLM_GRANTED request */ +#define LOCKD_ANS_LOCK_INFO 0x0002 /* lock info valid */ +#define LOCKD_ANS_LOCK_EXCL 0x0004 /* lock is exclusive */ +#define LOCKD_ANS_DENIED_GRACE 0x0008 /* lock denied due to grace period */ + + +/* + * The structure that lockd hands the kernel for each notify. + */ +#define LOCKD_NOTIFY_VERSION 1 +struct lockd_notify { + int ln_version; /* lockd_notify version */ + int ln_flags; /* notify flags */ + int ln_pad; /* (for alignment) */ + int ln_addrcount; /* # of addresss */ + struct sockaddr_storage ln_addr[1]; /* List of addresses. */ +}; #ifdef KERNEL -void nfs_lockinit(void); -void nfs_lockd_mount_change(int); -int nfs3_vnop_advlock(struct vnop_advlock_args *ap); -int nfslockdans(proc_t p, struct lockd_ans *ansp); +void nfs_lockinit(void); +void nfs_lockd_mount_register(struct nfsmount *); +void nfs_lockd_mount_unregister(struct nfsmount *); +int nfs3_lockd_request(nfsnode_t, int, LOCKD_MSG_REQUEST *, int, thread_t); +int nfslockdans(proc_t p, struct lockd_ans *ansp); +int nfslockdnotify(proc_t p, user_addr_t argp); #endif #endif /* __APPLE_API_PRIVATE */