/* $NetBSD: nfs_var.h,v 1.94 2015/07/15 03:28:55 manu Exp $ */ /*- * Copyright (c) 1996 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Christos Zoulas. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * XXX needs <nfs/rpcv2.h> and <nfs/nfs.h> because of typedefs */ #ifdef _KERNEL #include <sys/mallocvar.h> #include <sys/pool.h> struct vnode; struct uio; struct proc; struct buf; struct nfs_diskless; struct sockaddr_in; struct nfs_dlmount; struct vnode; struct nfsd; struct mbuf; struct file; struct nfssvc_sock; struct nfsmount; struct socket; struct nfsreq; struct vattr; struct nameidata; struct nfsnode; struct sillyrename; struct componentname; struct nfsd_srvargs; struct nfsrv_descript; struct nfs_fattr; struct nfsdircache; union nethostaddr; /* nfs_bio.c */ int nfs_bioread(struct vnode *, struct uio *, int, kauth_cred_t, int); struct buf *nfs_getcacheblk(struct vnode *, daddr_t, int, struct lwp *); int nfs_vinvalbuf(struct vnode *, int, kauth_cred_t, struct lwp *, int); int nfs_flushstalebuf(struct vnode *, kauth_cred_t, struct lwp *, int); #define NFS_FLUSHSTALEBUF_MYWRITE 1 /* assume writes are ours */ int nfs_asyncio(struct buf *); int nfs_doio(struct buf *); /* nfs_boot.c */ /* see nfsdiskless.h */ /* nfs_kq.c */ void nfs_kqinit(void); void nfs_kqfini(void); /* nfs_node.c */ void nfs_node_init(void); void nfs_node_done(void); int nfs_nget1(struct mount *, nfsfh_t *, int, struct nfsnode **, int); #define nfs_nget(mp, fhp, fhsize, npp) \ nfs_nget1((mp), (fhp), (fhsize), (npp), 0) /* nfs_vnops.c */ int nfs_null(struct vnode *, kauth_cred_t, struct lwp *); int nfs_setattrrpc(struct vnode *, struct vattr *, kauth_cred_t, struct lwp *); int nfs_readlinkrpc(struct vnode *, struct uio *, kauth_cred_t); int nfs_readrpc(struct vnode *, struct uio *); int nfs_writerpc(struct vnode *, struct uio *, int *, bool, bool *); int nfs_mknodrpc(struct vnode *, struct vnode **, struct componentname *, struct vattr *); int nfs_removeit(struct sillyrename *); int nfs_removerpc(struct vnode *, const char *, int, kauth_cred_t, struct lwp *); int nfs_renameit(struct vnode *, struct componentname *, struct sillyrename *); int nfs_renamerpc(struct vnode *, const char *, int, struct vnode *, const char *, int, kauth_cred_t, struct lwp *); int nfs_readdirrpc(struct vnode *, struct uio *, kauth_cred_t); int nfs_readdirplusrpc(struct vnode *, struct uio *, kauth_cred_t); int nfs_sillyrename(struct vnode *, struct vnode *, struct componentname *, bool); int nfs_lookitup(struct vnode *, const char *, int, kauth_cred_t, struct lwp *, struct nfsnode **); int nfs_commit(struct vnode *, off_t, uint32_t, struct lwp *); int nfs_flush(struct vnode *, kauth_cred_t, int, struct lwp *, int); /* nfs_serv.c */ int nfsrv3_access(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_getattr(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_setattr(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_lookup(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_readlink(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_read(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_write(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_writegather(struct nfsrv_descript **, struct nfssvc_sock *, struct lwp *, struct mbuf **); void nfsrvw_coalesce(struct nfsrv_descript *, struct nfsrv_descript *); int nfsrv_create(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_mknod(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_remove(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_rename(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_link(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_symlink(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_mkdir(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_rmdir(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_readdir(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_readdirplus(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_commit(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_statfs(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_fsinfo(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_pathconf(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_null(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_noop(struct nfsrv_descript *, struct nfssvc_sock *, struct lwp *, struct mbuf **); int nfsrv_access(struct vnode *, int, kauth_cred_t, int, struct lwp *, int); /* nfs_socket.c */ int nfs_connect(struct nfsmount *, struct nfsreq *, struct lwp *); int nfs_reconnect(struct nfsreq *); void nfs_disconnect(struct nfsmount *); void nfs_safedisconnect(struct nfsmount *); int nfs_send(struct socket *, struct mbuf *, struct mbuf *, struct nfsreq *, struct lwp *); int nfs_request(struct nfsnode *, struct mbuf *, int, struct lwp *, kauth_cred_t, struct mbuf **, struct mbuf **, char **, int *); int nfs_rephead(int, struct nfsrv_descript *, struct nfssvc_sock *, int, int, u_quad_t *, struct mbuf **, struct mbuf **, char **); void nfs_timer(void *); void nfs_timer_init(void); void nfs_timer_fini(void); void nfs_timer_start(void); void nfs_timer_srvinit(bool (*)(void)); void nfs_timer_srvfini(void); int nfs_sigintr(struct nfsmount *, struct nfsreq *, struct lwp *); int nfs_getreq(struct nfsrv_descript *, struct nfsd *, int); int nfs_msg(struct lwp *, const char *, const char *); void nfsrv_soupcall(struct socket *, void *, int, int); void nfsrv_rcv(struct nfssvc_sock *); int nfsrv_getstream(struct nfssvc_sock *, int); int nfsrv_dorec(struct nfssvc_sock *, struct nfsd *, struct nfsrv_descript **, bool *); void nfsrv_wakenfsd(struct nfssvc_sock *); int nfsdsock_lock(struct nfssvc_sock *, bool); void nfsdsock_unlock(struct nfssvc_sock *); int nfsdsock_drain(struct nfssvc_sock *); int nfsdsock_sendreply(struct nfssvc_sock *, struct nfsrv_descript *); void nfsdreq_init(void); void nfsdreq_fini(void); struct nfsrv_descript *nfsdreq_alloc(void); void nfsdreq_free(struct nfsrv_descript *); bool nfsrv_timer(void); int nfs_rcvlock(struct nfsmount *, struct nfsreq *); void nfs_rcvunlock(struct nfsmount *); void nfsdsock_setbits(struct nfssvc_sock *, int); void nfsdsock_clearbits(struct nfssvc_sock *, int); bool nfsdsock_testbits(struct nfssvc_sock *, int); /* * Estimate rto for an nfs rpc sent via. an unreliable datagram. * Use the mean and mean deviation of rtt for the appropriate type of rpc * for the frequent rpcs and a default for the others. * The justification for doing "other" this way is that these rpcs * happen so infrequently that timer est. would probably be stale. * Also, since many of these rpcs are * non-idempotent, a conservative timeout is desired. * getattr, lookup - A+2D * read, write - A+4D * other - nm_timeo */ #define NFS_RTO(n, t) \ ((t) == 0 ? (n)->nm_timeo : \ ((t) < 3 ? \ (((((n)->nm_srtt[t-1] + 3) >> 2) + (n)->nm_sdrtt[t-1] + 1) >> 1) : \ ((((n)->nm_srtt[t-1] + 7) >> 3) + (n)->nm_sdrtt[t-1] + 1))) #define NFS_SRTT(r) (r)->r_nmp->nm_srtt[nfs_proct[(r)->r_procnum] - 1] #define NFS_SDRTT(r) (r)->r_nmp->nm_sdrtt[nfs_proct[(r)->r_procnum] - 1] extern int nfsrtton; extern struct nfsrtt nfsrtt; extern const int nfs_proct[]; extern const struct timeval nfs_err_interval; extern struct timeval nfs_reply_last_err_time; extern struct timeval nfs_timer_last_err_time; /* nfs_srvcache.c */ void nfsrv_initcache(void); void nfsrv_finicache(void); int nfsrv_getcache(struct nfsrv_descript *, struct nfssvc_sock *, struct mbuf **); void nfsrv_updatecache(struct nfsrv_descript *, int, struct mbuf *); void nfsrv_cleancache(void); /* nfs_subs.c */ struct mbuf *nfsm_reqh(struct nfsnode *, u_long, int, char **); struct mbuf *nfsm_rpchead(kauth_cred_t, int, int, int, int, char *, int, char *, struct mbuf *, int, struct mbuf **, u_int32_t *); int nfsm_mbuftouio(struct mbuf **, struct uio *, int, char **); int nfsm_uiotombuf(struct uio *, struct mbuf **, int, char **); int nfsm_disct(struct mbuf **, char **, int, int, char **); int nfs_adv(struct mbuf **, char **, int, int); int nfsm_strtmbuf(struct mbuf **, char **, const char *, long); u_long nfs_dirhash(off_t); void nfs_initdircache(struct vnode *); void nfs_initdirxlatecookie(struct vnode *); struct nfsdircache *nfs_searchdircache(struct vnode *, off_t, int, int *); struct nfsdircache *nfs_enterdircache(struct vnode *, off_t, off_t, int, daddr_t); void nfs_putdircache(struct nfsnode *, struct nfsdircache *); void nfs_invaldircache(struct vnode *, int); #define NFS_INVALDIRCACHE_FORCE 1 #define NFS_INVALDIRCACHE_KEEPEOF 2 void nfs_init(void); void nfs_fini(void); int nfsm_loadattrcache(struct vnode **, struct mbuf **, char **, struct vattr *, int flags); int nfs_loadattrcache(struct vnode **, struct nfs_fattr *, struct vattr *, int flags); int nfs_getattrcache(struct vnode *, struct vattr *); void nfs_delayedtruncate(struct vnode *); int nfs_check_wccdata(struct nfsnode *, const struct timespec *, struct timespec *, bool); int nfs_namei(struct nameidata *, nfsrvfh_t *, uint32_t, struct nfssvc_sock *, struct mbuf *, struct mbuf **, char **, struct vnode **, struct lwp *, int, int); void nfs_zeropad(struct mbuf *, int, int); void nfsm_srvwcc(struct nfsrv_descript *, int, struct vattr *, int, struct vattr *, struct mbuf **, char **); void nfsm_srvpostopattr(struct nfsrv_descript *, int, struct vattr *, struct mbuf **, char **); void nfsm_srvfattr(struct nfsrv_descript *, struct vattr *, struct nfs_fattr *); int nfsrv_fhtovp(nfsrvfh_t *, int, struct vnode **, kauth_cred_t, struct nfssvc_sock *, struct mbuf *, int *, int, int); int nfs_ispublicfh(const nfsrvfh_t *); int netaddr_match(int, union nethostaddr *, struct mbuf *); time_t nfs_attrtimeo(struct nfsmount *, struct nfsnode *); /* flags for nfs_loadattrcache and friends */ #define NAC_NOTRUNC 1 /* don't truncate file size */ void nfs_clearcommit(struct mount *); void nfs_merge_commit_ranges(struct vnode *); int nfs_in_committed_range(struct vnode *, off_t, off_t); int nfs_in_tobecommitted_range(struct vnode *, off_t, off_t); void nfs_add_committed_range(struct vnode *, off_t, off_t); void nfs_del_committed_range(struct vnode *, off_t, off_t); void nfs_add_tobecommitted_range(struct vnode *, off_t, off_t); void nfs_del_tobecommitted_range(struct vnode *, off_t, off_t); int nfsrv_errmap(struct nfsrv_descript *, int); void nfs_cookieheuristic(struct vnode *, int *, struct lwp *, kauth_cred_t); u_int32_t nfs_getxid(void); void nfs_renewxid(struct nfsreq *); int nfsrv_composefh(struct vnode *, nfsrvfh_t *, bool); int nfsrv_comparefh(const nfsrvfh_t *, const nfsrvfh_t *); void nfsrv_copyfh(nfsrvfh_t *, const nfsrvfh_t *); extern const enum vtype nv2tov_type[8]; extern const enum vtype nv3tov_type[8]; extern u_int32_t rpc_reply, rpc_msgdenied, rpc_mismatch, rpc_vers, rpc_auth_unix, rpc_msgaccepted, rpc_call, rpc_autherr, rpc_auth_kerb; extern u_int32_t nfs_prog; extern const int nfsv3_procid[NFS_NPROCS]; extern int nfs_ticks; /* nfs_syscalls.c */ struct sys_getfh_args; struct sys_nfssvc_args; int sys_getfh(struct lwp *, const struct sys_getfh_args *, register_t *); int sys_nfssvc(struct lwp *, const struct sys_nfssvc_args *, register_t *); int nfssvc_addsock(struct file *, struct mbuf *); void nfsrv_zapsock(struct nfssvc_sock *); void nfsrv_slpderef(struct nfssvc_sock *); void nfsrv_init(int); void nfsrv_fini(void); void nfs_iodinit(void); void nfs_iodfini(void); int nfs_iodbusy(struct nfsmount *); int nfs_set_niothreads(int); int nfs_getauth(struct nfsmount *, struct nfsreq *, kauth_cred_t, char **, int *, char *, int *, NFSKERBKEY_T); int nfs_getnickauth(struct nfsmount *, kauth_cred_t, char **, int *, char *, int); int nfs_savenickauth(struct nfsmount *, kauth_cred_t, int, NFSKERBKEY_T, struct mbuf **, char **, struct mbuf *); /* * Backend copyin/out functions for nfssvc(2), so that netbsd32 can * easily access NFS. Each operation either must perform a copyin or * copyout of the right data for the emulation. exp_in() takes a count * of the number of export_args to copyin, and order arguments for * func(dst, src). */ struct nfssvc_copy_ops { int (*addsock_in)(struct nfsd_args *, const void *); int (*setexports_in)(struct mountd_exports_list *, const void *); int (*nsd_in)(struct nfsd_srvargs *, const void *); int (*nsd_out)(void *, const struct nfsd_srvargs *); int (*exp_in)(struct export_args *, const void *, size_t); }; int do_nfssvc(struct nfssvc_copy_ops *, struct lwp *, int, void *, register_t *); /* nfs_export.c */ extern struct nfs_public nfs_pub; int mountd_set_exports_list(const struct mountd_exports_list *, struct lwp *, struct mount *); int netexport_check(const fsid_t *, struct mbuf *, struct mount **, int *, kauth_cred_t *); void netexport_rdlock(void); void netexport_rdunlock(void); void netexport_init(void); void netexport_fini(void); bool netexport_hasexports(void); #endif /* _KERNEL */