Current Path : /sys/nfsclient/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/nfsclient/nfsm_subs.h |
/*- * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Rick Macklem at The University of Guelph. * * 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. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)nfsm_subs.h 8.2 (Berkeley) 3/30/95 * $FreeBSD: release/9.1.0/sys/nfsclient/nfsm_subs.h 233285 2012-03-21 20:50:15Z jhb $ */ #ifndef _NFSCLIENT_NFSM_SUBS_H_ #define _NFSCLIENT_NFSM_SUBS_H_ #include <nfs/nfs_common.h> #define nfsv2tov_type(a) nv2tov_type[fxdr_unsigned(u_int32_t,(a))&0x7] struct ucred; struct vnode; /* * These macros do strange and peculiar things to mbuf chains for * the assistance of the nfs code. To attempt to use them for any * other purpose will be dangerous. (they make weird assumptions) */ /* * First define what the actual subs. return */ u_int32_t nfs_xid_gen(void); struct mbuf *nfsm_reqhead(struct vnode *vp, u_long procid, int hsiz); #define M_HASCL(m) ((m)->m_flags & M_EXT) #define NFSMINOFF(m) \ do { \ if (M_HASCL(m)) \ (m)->m_data = (m)->m_ext.ext_buf; \ else if ((m)->m_flags & M_PKTHDR) \ (m)->m_data = (m)->m_pktdat; \ else \ (m)->m_data = (m)->m_dat; \ } while (0) #define NFSMSIZ(m) ((M_HASCL(m))?MCLBYTES: \ (((m)->m_flags & M_PKTHDR)?MHLEN:MLEN)) /* * Now for the macros that do the simple stuff and call the functions * for the hard stuff. * These macros use several vars. declared in nfsm_reqhead and these * vars. must not be used elsewhere unless you are careful not to corrupt * them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries * that may be used so long as the value is not expected to retained * after a macro. * I know, this is kind of dorkey, but it makes the actual op functions * fairly clean and deals with the mess caused by the xdr discriminating * unions. */ /* *********************************** */ /* Request generation phase macros */ int nfsm_fhtom_xx(struct vnode *v, int v3, struct mbuf **mb, caddr_t *bpos); void nfsm_v3attrbuild_xx(struct vattr *va, int full, struct mbuf **mb, caddr_t *bpos); int nfsm_strtom_xx(const char *a, int s, int m, struct mbuf **mb, caddr_t *bpos); #define nfsm_bcheck(t1, mreq) \ do { \ if (t1) { \ error = t1; \ m_freem(mreq); \ goto nfsmout; \ } \ } while (0) #define nfsm_fhtom(v, v3) \ do { \ int32_t t1; \ t1 = nfsm_fhtom_xx((v), (v3), &mb, &bpos); \ nfsm_bcheck(t1, mreq); \ } while (0) /* If full is true, set all fields, otherwise just set mode and time fields */ #define nfsm_v3attrbuild(a, full) \ nfsm_v3attrbuild_xx(a, full, &mb, &bpos) #define nfsm_uiotom(p, s) \ do { \ int t1; \ t1 = nfsm_uiotombuf((p), &mb, (s), &bpos); \ nfsm_bcheck(t1, mreq); \ } while (0) #define nfsm_strtom(a, s, m) \ do { \ int t1; \ t1 = nfsm_strtom_xx((a), (s), (m), &mb, &bpos); \ nfsm_bcheck(t1, mreq); \ } while (0) /* *********************************** */ /* Send the request */ #define nfsm_request(v, t, p, c) \ do { \ sigset_t oldset; \ nfs_set_sigmask(p, &oldset); \ error = nfs_request((v), mreq, (t), (p), (c), &mrep, &md, &dpos); \ nfs_restore_sigmask(p, &oldset); \ if (error != 0) { \ if (error & NFSERR_RETERR) \ error &= ~NFSERR_RETERR; \ else \ goto nfsmout; \ } \ } while (0) /* *********************************** */ /* Reply interpretation phase macros */ int nfsm_mtofh_xx(struct vnode *d, struct vnode **v, int v3, int *f, struct mbuf **md, caddr_t *dpos); int nfsm_getfh_xx(nfsfh_t **f, int *s, int v3, struct mbuf **md, caddr_t *dpos); int nfsm_loadattr_xx(struct vnode **v, struct vattr *va, struct mbuf **md, caddr_t *dpos); int nfsm_postop_attr_xx(struct vnode **v, int *f, struct vattr *va, struct mbuf **md, caddr_t *dpos); int nfsm_wcc_data_xx(struct vnode **v, int *f, struct mbuf **md, caddr_t *dpos); #define nfsm_mtofh(d, v, v3, f) \ do { \ int32_t t1; \ t1 = nfsm_mtofh_xx((d), &(v), (v3), &(f), &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) #define nfsm_getfh(f, s, v3) \ do { \ int32_t t1; \ t1 = nfsm_getfh_xx(&(f), &(s), (v3), &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) #define nfsm_loadattr(v, a) \ do { \ int32_t t1; \ t1 = nfsm_loadattr_xx(&v, a, &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) #define nfsm_postop_attr(v, f) \ do { \ int32_t t1; \ t1 = nfsm_postop_attr_xx(&v, &f, NULL, &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) #define nfsm_postop_attr_va(v, f, va) \ do { \ int32_t t1; \ t1 = nfsm_postop_attr_xx(&v, &f, va, &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) /* Used as (f) for nfsm_wcc_data() */ #define NFSV3_WCCRATTR 0 #define NFSV3_WCCCHK 1 #define nfsm_wcc_data(v, f) \ do { \ int32_t t1; \ t1 = nfsm_wcc_data_xx(&v, &f, &md, &dpos); \ nfsm_dcheck(t1, mrep); \ } while (0) #endif