[unix-history] / sys / nfs / nfsm_subs.h

/*
 * Copyright (c) 1989 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 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.
 *
 *	From:	@(#)nfsm_subs.h	7.11 (Berkeley) 4/16/91
 *	$Id: nfsm_subs.h,v 1.2 1993/09/09 22:06:21 rgrimes Exp $
 */

#ifndef __h_nfsm_subs
#define __h_nfsm_subs 1

/*
 * 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
 */
extern struct mbuf *nfsm_reqh();

#define	M_HASCL(m)	((m)->m_flags & M_EXT)
#define	NFSMGETHDR(m) \
		MGETHDR(m, M_WAIT, MT_DATA); \
		(m)->m_pkthdr.len = 0; \
		(m)->m_pkthdr.rcvif = (struct ifnet *)0
#define	NFSMINOFF(m) \
		if (M_HASCL(m)) \
			(m)->m_data = (m)->m_ext.ext_buf; \
		else \
			(m)->m_data = (m)->m_dat
#define	NFSMADV(m, s)	(m)->m_data += (s)
#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.
 */

#ifndef lint
#define	nfsm_build(a,c,s) \
		t1 = NFSMSIZ(mb); \
		if ((s) > (t1-mb->m_len)) { \
			MGET(mb2, M_WAIT, MT_DATA); \
			if ((s) > MLEN) \
				panic("build > MLEN"); \
			mb->m_next = mb2; \
			mb = mb2; \
			mb->m_len = 0; \
			bpos = mtod(mb, caddr_t); \
		} \
		(a) = (c)(bpos); \
		mb->m_len += (s); \
		bpos += (s)
#else /* lint */
#define	nfsm_build(a,c,s) \
		t1 = NFSMSIZ(mb); \
		if ((s) > (t1-mb->m_len)) { \
			MGET(mb2, M_WAIT, MT_DATA); \
			mb->m_next = mb2; \
			mb = mb2; \
			mb->m_len = 0; \
			bpos = mtod(mb, caddr_t); \
		} \
		(a) = (c)(bpos); \
		mb->m_len += (s); \
		bpos += (s)
#endif /* lint */

#define	nfsm_disect(a,c,s) \
		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
		if (t1 >= (s)) { \
			(a) = (c)(dpos); \
			dpos += (s); \
		} else if (error = nfsm_disct(&md, &dpos, (s), t1, TRUE, &cp2)) { \
			m_freem(mrep); \
			goto nfsmout; \
		} else { \
			(a) = (c)cp2; \
		}

#define	nfsm_disecton(a,c,s) \
		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
		if (t1 >= (s)) { \
			(a) = (c)(dpos); \
			dpos += (s); \
		} else if (error = nfsm_disct(&md, &dpos, (s), t1, FALSE, &cp2)) { \
			m_freem(mrep); \
			goto nfsmout; \
		} else { \
			(a) = (c)cp2; \
		}

#define nfsm_fhtom(v) \
		nfsm_build(cp,caddr_t,NFSX_FH); \
		bcopy((caddr_t)&(VTONFS(v)->n_fh), cp, NFSX_FH)

#define nfsm_srvfhtom(f) \
		nfsm_build(cp,caddr_t,NFSX_FH); \
		bcopy((caddr_t)(f), cp, NFSX_FH)

#define nfsm_mtofh(d,v) \
		{ struct nfsnode *np; nfsv2fh_t *fhp; \
		nfsm_disect(fhp,nfsv2fh_t *,NFSX_FH); \
		if (error = nfs_nget((d)->v_mount, fhp, &np)) { \
			m_freem(mrep); \
			goto nfsmout; \
		} \
		(v) = NFSTOV(np); \
		nfsm_loadattr(v, (struct vattr *)0); \
		}

#define	nfsm_loadattr(v,a) \
		{ struct vnode *tvp = (v); \
		if (error = nfs_loadattrcache(&tvp, &md, &dpos, (a))) { \
			m_freem(mrep); \
			goto nfsmout; \
		} \
		(v) = tvp; }

#define	nfsm_strsiz(s,m) \
		nfsm_disect(tl,u_long *,NFSX_UNSIGNED); \
		if (((s) = fxdr_unsigned(long,*tl)) > (m)) { \
			m_freem(mrep); \
			error = EBADRPC; \
			goto nfsmout; \
		}

#define	nfsm_srvstrsiz(s,m) \
		nfsm_disect(tl,u_long *,NFSX_UNSIGNED); \
		if (((s) = fxdr_unsigned(long,*tl)) > (m) || (s) <= 0) { \
			error = EBADRPC; \
			nfsm_reply(0); \
		}

#define nfsm_mtouio(p,s) \
		if ((s) > 0 && \
		   (error = nfsm_mbuftouio(&md,(p),(s),&dpos))) { \
			m_freem(mrep); \
			goto nfsmout; \
		}

#define nfsm_uiotom(p,s) \
		if (error = nfsm_uiotombuf((p),&mb,(s),&bpos)) { \
			m_freem(mreq); \
			goto nfsmout; \
		}

#define	nfsm_reqhead(a,c,s) \
		if ((mreq = nfsm_reqh(nfs_prog,nfs_vers,(a),(c),(s),&bpos,&mb,&xid)) == NULL) { \
			error = ENOBUFS; \
			goto nfsmout; \
		}

#define nfsm_reqdone	m_freem(mrep); \
		nfsmout: 

#define nfsm_rndup(a)	(((a)+3)&(~0x3))

#define	nfsm_request(v, t, p, h)	\
		if (error = nfs_request((v), mreq, xid, (t), (p), (h), \
		   (v)->v_mount, &mrep, &md, &dpos)) \
			goto nfsmout

#define	nfsm_strtom(a,s,m) \
		if ((s) > (m)) { \
			m_freem(mreq); \
			error = ENAMETOOLONG; \
			goto nfsmout; \
		} \
		t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
		if(t2<=(NFSMSIZ(mb)-mb->m_len)){ \
			nfsm_build(tl,u_long *,t2); \
			*tl++ = txdr_unsigned(s); \
			*(tl+((t2>>2)-2)) = 0; \
			bcopy((caddr_t)(a), (caddr_t)tl, (s)); \
		} else if (error = nfsm_strtmbuf(&mb, &bpos, (a), (s))) { \
			m_freem(mreq); \
			goto nfsmout; \
		}

#define	nfsm_srvdone \
		nfsmout: \
		return(error)

#ifndef lint
#define	nfsm_reply(s) \
		{ \
		*repstat = error; \
		if (error) \
			nfs_rephead(0, xid, error, mrq, &mb, &bpos); \
		else \
			nfs_rephead((s), xid, error, mrq, &mb, &bpos); \
		m_freem(mrep); \
		mreq = *mrq; \
		if (error) \
			return(0); \
		}
#else	/* lint */
#define	nfsm_reply(s) \
		{ \
		*repstat = error; \
		if (error) \
			nfs_rephead(0, xid, error, mrq, &mb, &bpos); \
		else \
			nfs_rephead((s), xid, error, mrq, &mb, &bpos); \
		m_freem(mrep); \
		mreq = *mrq; \
		mrep = mreq; \
		if (error) \
			return(0); \
		}
#endif	/* lint */

#define	nfsm_adv(s) \
		t1 = mtod(md, caddr_t)+md->m_len-dpos; \
		if (t1 >= (s)) { \
			dpos += (s); \
		} else if (error = nfs_adv(&md, &dpos, (s), t1)) { \
			m_freem(mrep); \
			goto nfsmout; \
		}

#define nfsm_srvmtofh(f) \
		nfsm_disecton(tl, u_long *, NFSX_FH); \
		bcopy((caddr_t)tl, (caddr_t)f, NFSX_FH)

#define	nfsm_clget \
		if (bp >= be) { \
			MGET(mp, M_WAIT, MT_DATA); \
			MCLGET(mp, M_WAIT); \
			mp->m_len = NFSMSIZ(mp); \
			if (mp3 == NULL) \
				mp3 = mp2 = mp; \
			else { \
				mp2->m_next = mp; \
				mp2 = mp; \
			} \
			bp = mtod(mp, caddr_t); \
			be = bp+mp->m_len; \
		} \
		tl = (u_long *)bp

#define	nfsm_srvfillattr \
	fp->fa_type = vtonfs_type(vap->va_type); \
	fp->fa_mode = vtonfs_mode(vap->va_type, vap->va_mode); \
	fp->fa_nlink = txdr_unsigned(vap->va_nlink); \
	fp->fa_uid = txdr_unsigned(vap->va_uid); \
	fp->fa_gid = txdr_unsigned(vap->va_gid); \
	fp->fa_size = txdr_unsigned(vap->va_size); \
	fp->fa_blocksize = txdr_unsigned(vap->va_blocksize); \
	if (vap->va_type == VFIFO) \
		fp->fa_rdev = 0xffffffffUL; \
	else \
		fp->fa_rdev = txdr_unsigned(vap->va_rdev); \
	fp->fa_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); \
	fp->fa_fsid = txdr_unsigned(vap->va_fsid); \
	fp->fa_fileid = txdr_unsigned(vap->va_fileid); \
	fp->fa_atime.tv_sec = txdr_unsigned(vap->va_atime.tv_sec); \
	fp->fa_atime.tv_usec = txdr_unsigned(vap->va_flags); \
	txdr_time(&vap->va_mtime, &fp->fa_mtime); \
	fp->fa_ctime.tv_sec = txdr_unsigned(vap->va_ctime.tv_sec); \
	fp->fa_ctime.tv_usec = txdr_unsigned(vap->va_gen)

#ifdef KERNEL
struct nfsmount;

void nfs_updatetimer __P((struct nfsmount *));
void nfs_backofftimer __P((struct nfsmount *));
int nfs_sigintr __P((struct proc *));
void nfs_msg __P((struct proc *, const char *, const char *));
void nfs_solock __P((int *));
void nfs_sounlock __P((int *));
int nfs_netaddr_match __P((struct mbuf *, struct mbuf *));
int nfs_badnam __P((struct mbuf *, struct mbuf *, struct mbuf *));

extern int nfs_rephead(int, u_long, int, struct mbuf **, struct mbuf **, 
		       caddr_t *);
extern struct mbuf *nfsm_reqh(u_long, u_long, u_long, struct ucred *, int,
			      caddr_t *, struct mbuf **, u_long *);
extern int nfsm_mbuftouio(struct mbuf **, struct uio *, int, caddr_t *);
extern int nfsm_uiotombuf(struct uio *, struct mbuf **, int, caddr_t *);
extern int nfsm_disct(struct mbuf **, caddr_t *, int, int, int, caddr_t *);
extern int nfs_adv(struct mbuf **, caddr_t *, int, int);
extern int nfsm_strtmbuf(struct mbuf **, char **, char *, long);
extern void nfs_init(void);
extern void nfsm_adj(struct mbuf *, int, int);
extern struct mbuf *nfs_compress(struct mbuf *);
extern struct mbuf *nfs_uncompress(struct mbuf *);

extern int nfs_request(struct vnode *, struct mbuf *, u_long, int,
		       struct proc *, int, struct mount *, struct mbuf **,
		       struct mbuf **, caddr_t *);
struct nfsreq;
extern int nfs_receive(struct socket *, struct mbuf **, struct mbuf **,
		       struct nfsreq *);
extern int nfs_send(struct socket *, struct mbuf *, struct mbuf *,
		    struct nfsreq *);
extern int nfs_getreq(struct socket *so, u_long, u_long, int, struct mbuf **,
		      struct mbuf **, struct mbuf **, caddr_t *, u_long *,
		      u_long *, struct ucred *, struct mbuf *, struct mbuf *,
		      int *, int *);
extern int nfs_netaddr_match(struct mbuf *, struct mbuf *);
extern int nfs_badnam(struct mbuf *, struct mbuf *, struct mbuf *);

#endif /* KERNEL */
#endif /* __h_nfsm_subs */
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Rick Macklem at The University of Guelph.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	11	* 1. Redistributions of source code must retain the above copyright
	12	* notice, this list of conditions and the following disclaimer.
	13	* 2. Redistributions in binary form must reproduce the above copyright
	14	* notice, this list of conditions and the following disclaimer in the
	15	* documentation and/or other materials provided with the distribution.
	16	* 3. All advertising materials mentioning features or use of this software
	17	* must display the following acknowledgement:
	18	* This product includes software developed by the University of
	19	* California, Berkeley and its contributors.
	20	* 4. Neither the name of the University nor the names of its contributors
	21	* may be used to endorse or promote products derived from this software
	22	* without specific prior written permission.
	23	*
	24	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	25	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	26	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	27	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	28	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	29	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	30	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	31	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	32	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	33	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	34	* SUCH DAMAGE.
	35	*
a8599e88	36	* From: @(#)nfsm_subs.h 7.11 (Berkeley) 4/16/91
fde1aeb2	37	* $Id: nfsm_subs.h,v 1.2 1993/09/09 22:06:21 rgrimes Exp $
15637ed4 RG	38	*/
15637ed4 RG	39
a8599e88 RG	40	#ifndef __h_nfsm_subs
	41	#define __h_nfsm_subs 1
	42
15637ed4 RG	43	/*
	44	* These macros do strange and peculiar things to mbuf chains for
	45	* the assistance of the nfs code. To attempt to use them for any
	46	* other purpose will be dangerous. (they make weird assumptions)
	47	*/
	48
	49	/*
	50	* First define what the actual subs. return
	51	*/
	52	extern struct mbuf *nfsm_reqh();
	53
	54	#define M_HASCL(m) ((m)->m_flags & M_EXT)
	55	#define NFSMGETHDR(m) \
	56	MGETHDR(m, M_WAIT, MT_DATA); \
	57	(m)->m_pkthdr.len = 0; \
	58	(m)->m_pkthdr.rcvif = (struct ifnet *)0
	59	#define NFSMINOFF(m) \
	60	if (M_HASCL(m)) \
	61	(m)->m_data = (m)->m_ext.ext_buf; \
	62	else \
	63	(m)->m_data = (m)->m_dat
	64	#define NFSMADV(m, s) (m)->m_data += (s)
	65	#define NFSMSIZ(m) ((M_HASCL(m))?MCLBYTES: \
	66	(((m)->m_flags & M_PKTHDR)?MHLEN:MLEN))
	67
	68	/*
	69	* Now for the macros that do the simple stuff and call the functions
	70	* for the hard stuff.
	71	* These macros use several vars. declared in nfsm_reqhead and these
	72	* vars. must not be used elsewhere unless you are careful not to corrupt
	73	* them. The vars. starting with pN and tN (N=1,2,3,..) are temporaries
	74	* that may be used so long as the value is not expected to retained
	75	* after a macro.
	76	* I know, this is kind of dorkey, but it makes the actual op functions
	77	* fairly clean and deals with the mess caused by the xdr discriminating
	78	* unions.
	79	*/
	80
	81	#ifndef lint
	82	#define nfsm_build(a,c,s) \
	83	t1 = NFSMSIZ(mb); \
	84	if ((s) > (t1-mb->m_len)) { \
	85	MGET(mb2, M_WAIT, MT_DATA); \
	86	if ((s) > MLEN) \
	87	panic("build > MLEN"); \
	88	mb->m_next = mb2; \
	89	mb = mb2; \
	90	mb->m_len = 0; \
	91	bpos = mtod(mb, caddr_t); \
	92	} \
	93	(a) = (c)(bpos); \
	94	mb->m_len += (s); \
	95	bpos += (s)
	96	#else /* lint */
	97	#define nfsm_build(a,c,s) \
	98	t1 = NFSMSIZ(mb); \
	99	if ((s) > (t1-mb->m_len)) { \
	100	MGET(mb2, M_WAIT, MT_DATA); \
	101	mb->m_next = mb2; \
	102	mb = mb2; \
	103	mb->m_len = 0; \
	104	bpos = mtod(mb, caddr_t); \
	105	} \
	106	(a) = (c)(bpos); \
107	mb->m_len += (s); \
108	bpos += (s)
109	#endif /* lint */
110
111	#define nfsm_disect(a,c,s) \
112	t1 = mtod(md, caddr_t)+md->m_len-dpos; \
113	if (t1 >= (s)) { \
114	(a) = (c)(dpos); \
115	dpos += (s); \
116	} else if (error = nfsm_disct(&md, &dpos, (s), t1, TRUE, &cp2)) { \
117	m_freem(mrep); \
118	goto nfsmout; \
119	} else { \
120	(a) = (c)cp2; \
121	}
122
123	#define nfsm_disecton(a,c,s) \
124	t1 = mtod(md, caddr_t)+md->m_len-dpos; \
125	if (t1 >= (s)) { \
126	(a) = (c)(dpos); \
127	dpos += (s); \
128	} else if (error = nfsm_disct(&md, &dpos, (s), t1, FALSE, &cp2)) { \
129	m_freem(mrep); \
130	goto nfsmout; \
131	} else { \
132	(a) = (c)cp2; \
133	}
134
135	#define nfsm_fhtom(v) \
136	nfsm_build(cp,caddr_t,NFSX_FH); \
137	bcopy((caddr_t)&(VTONFS(v)->n_fh), cp, NFSX_FH)
138
139	#define nfsm_srvfhtom(f) \
140	nfsm_build(cp,caddr_t,NFSX_FH); \
141	bcopy((caddr_t)(f), cp, NFSX_FH)
142
143	#define nfsm_mtofh(d,v) \
144	{ struct nfsnode np; nfsv2fh_t fhp; \
145	nfsm_disect(fhp,nfsv2fh_t *,NFSX_FH); \
146	if (error = nfs_nget((d)->v_mount, fhp, &np)) { \
147	m_freem(mrep); \
148	goto nfsmout; \
149	} \
150	(v) = NFSTOV(np); \
151	nfsm_loadattr(v, (struct vattr *)0); \
152	}
153
154	#define nfsm_loadattr(v,a) \
155	{ struct vnode *tvp = (v); \
156	if (error = nfs_loadattrcache(&tvp, &md, &dpos, (a))) { \
157	m_freem(mrep); \
158	goto nfsmout; \
159	} \
160	(v) = tvp; }
161
162	#define nfsm_strsiz(s,m) \
163	nfsm_disect(tl,u_long *,NFSX_UNSIGNED); \
164	if (((s) = fxdr_unsigned(long,*tl)) > (m)) { \
165	m_freem(mrep); \
166	error = EBADRPC; \
167	goto nfsmout; \
168	}
169
170	#define nfsm_srvstrsiz(s,m) \
171	nfsm_disect(tl,u_long *,NFSX_UNSIGNED); \
172	if (((s) = fxdr_unsigned(long,*tl)) > (m) \|\| (s) <= 0) { \
173	error = EBADRPC; \
174	nfsm_reply(0); \
175	}
176
177	#define nfsm_mtouio(p,s) \
178	if ((s) > 0 && \
179	(error = nfsm_mbuftouio(&md,(p),(s),&dpos))) { \
180	m_freem(mrep); \
181	goto nfsmout; \
182	}
183
184	#define nfsm_uiotom(p,s) \
185	if (error = nfsm_uiotombuf((p),&mb,(s),&bpos)) { \
186	m_freem(mreq); \
187	goto nfsmout; \
188	}
189
190	#define nfsm_reqhead(a,c,s) \
191	if ((mreq = nfsm_reqh(nfs_prog,nfs_vers,(a),(c),(s),&bpos,&mb,&xid)) == NULL) { \
192	error = ENOBUFS; \
193	goto nfsmout; \
194	}
195
196	#define nfsm_reqdone m_freem(mrep); \
197	nfsmout:
198
199	#define nfsm_rndup(a) (((a)+3)&(~0x3))
200
201	#define nfsm_request(v, t, p, h) \
202	if (error = nfs_request((v), mreq, xid, (t), (p), (h), \
203	(v)->v_mount, &mrep, &md, &dpos)) \
204	goto nfsmout
205
206	#define nfsm_strtom(a,s,m) \
207	if ((s) > (m)) { \
208	m_freem(mreq); \
209	error = ENAMETOOLONG; \
210	goto nfsmout; \
211	} \
212	t2 = nfsm_rndup(s)+NFSX_UNSIGNED; \
213	if(t2<=(NFSMSIZ(mb)-mb->m_len)){ \
214	nfsm_build(tl,u_long *,t2); \
215	*tl++ = txdr_unsigned(s); \
216	*(tl+((t2>>2)-2)) = 0; \
217	bcopy((caddr_t)(a), (caddr_t)tl, (s)); \
218	} else if (error = nfsm_strtmbuf(&mb, &bpos, (a), (s))) { \
219	m_freem(mreq); \
220	goto nfsmout; \
221	}
222
223	#define nfsm_srvdone \
224	nfsmout: \
225	return(error)
226
227	#ifndef lint
228	#define nfsm_reply(s) \
229	{ \
230	*repstat = error; \
231	if (error) \
232	nfs_rephead(0, xid, error, mrq, &mb, &bpos); \
233	else \
234	nfs_rephead((s), xid, error, mrq, &mb, &bpos); \
235	m_freem(mrep); \
236	mreq = *mrq; \
237	if (error) \
238	return(0); \
239	}
240	#else /* lint */
241	#define nfsm_reply(s) \
242	{ \
243	*repstat = error; \
244	if (error) \
245	nfs_rephead(0, xid, error, mrq, &mb, &bpos); \
246	else \
247	nfs_rephead((s), xid, error, mrq, &mb, &bpos); \
248	m_freem(mrep); \
249	mreq = *mrq; \
250	mrep = mreq; \
251	if (error) \
252	return(0); \
253	}
254	#endif /* lint */
255
256	#define nfsm_adv(s) \
257	t1 = mtod(md, caddr_t)+md->m_len-dpos; \
258	if (t1 >= (s)) { \
259	dpos += (s); \
260	} else if (error = nfs_adv(&md, &dpos, (s), t1)) { \
261	m_freem(mrep); \
262	goto nfsmout; \
263	}
264
265	#define nfsm_srvmtofh(f) \
266	nfsm_disecton(tl, u_long *, NFSX_FH); \
267	bcopy((caddr_t)tl, (caddr_t)f, NFSX_FH)
268
269	#define nfsm_clget \
270	if (bp >= be) { \
271	MGET(mp, M_WAIT, MT_DATA); \
272	MCLGET(mp, M_WAIT); \
273	mp->m_len = NFSMSIZ(mp); \
274	if (mp3 == NULL) \
275	mp3 = mp2 = mp; \
276	else { \
277	mp2->m_next = mp; \
278	mp2 = mp; \
279	} \
280	bp = mtod(mp, caddr_t); \
281	be = bp+mp->m_len; \
282	} \
283	tl = (u_long *)bp
284
285	#define nfsm_srvfillattr \
286	fp->fa_type = vtonfs_type(vap->va_type); \
287	fp->fa_mode = vtonfs_mode(vap->va_type, vap->va_mode); \
288	fp->fa_nlink = txdr_unsigned(vap->va_nlink); \
289	fp->fa_uid = txdr_unsigned(vap->va_uid); \
290	fp->fa_gid = txdr_unsigned(vap->va_gid); \
291	fp->fa_size = txdr_unsigned(vap->va_size); \
292	fp->fa_blocksize = txdr_unsigned(vap->va_blocksize); \
293	if (vap->va_type == VFIFO) \
fde1aeb2	294	fp->fa_rdev = 0xffffffffUL; \
15637ed4 RG	295	else \
	296	fp->fa_rdev = txdr_unsigned(vap->va_rdev); \
	297	fp->fa_blocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); \
	298	fp->fa_fsid = txdr_unsigned(vap->va_fsid); \
	299	fp->fa_fileid = txdr_unsigned(vap->va_fileid); \
	300	fp->fa_atime.tv_sec = txdr_unsigned(vap->va_atime.tv_sec); \
	301	fp->fa_atime.tv_usec = txdr_unsigned(vap->va_flags); \
	302	txdr_time(&vap->va_mtime, &fp->fa_mtime); \
	303	fp->fa_ctime.tv_sec = txdr_unsigned(vap->va_ctime.tv_sec); \
	304	fp->fa_ctime.tv_usec = txdr_unsigned(vap->va_gen)
	305
fde1aeb2	306	#ifdef KERNEL
a8599e88 RG	307	struct nfsmount;
	308
	309	void nfs_updatetimer __P((struct nfsmount *));
	310	void nfs_backofftimer __P((struct nfsmount *));
	311	int nfs_sigintr __P((struct proc *));
	312	void nfs_msg __P((struct proc , const char , const char *));
	313	void nfs_solock __P((int *));
	314	void nfs_sounlock __P((int *));
	315	int nfs_netaddr_match __P((struct mbuf , struct mbuf ));
	316	int nfs_badnam __P((struct mbuf , struct mbuf , struct mbuf *));
	317
fde1aeb2 GW	318	extern int nfs_rephead(int, u_long, int, struct mbuf , struct mbuf ,
	319	caddr_t *);
	320	extern struct mbuf nfsm_reqh(u_long, u_long, u_long, struct ucred , int,
	321	caddr_t , struct mbuf , u_long );
	322	extern int nfsm_mbuftouio(struct mbuf *, struct uio , int, caddr_t *);
	323	extern int nfsm_uiotombuf(struct uio , struct mbuf , int, caddr_t );
	324	extern int nfsm_disct(struct mbuf *, caddr_t , int, int, int, caddr_t *);
	325	extern int nfs_adv(struct mbuf *, caddr_t , int, int);
	326	extern int nfsm_strtmbuf(struct mbuf , char , char *, long);
	327	extern void nfs_init(void);
	328	extern void nfsm_adj(struct mbuf *, int, int);
	329	extern struct mbuf nfs_compress(struct mbuf );
	330	extern struct mbuf nfs_uncompress(struct mbuf );
a8599e88	331
fde1aeb2 GW	332	extern int nfs_request(struct vnode , struct mbuf , u_long, int,
	333	struct proc , int, struct mount , struct mbuf **,
	334	struct mbuf *, caddr_t );
	335	struct nfsreq;
	336	extern int nfs_receive(struct socket , struct mbuf , struct mbuf *,
	337	struct nfsreq *);
	338	extern int nfs_send(struct socket , struct mbuf , struct mbuf *,
	339	struct nfsreq *);
	340	extern int nfs_getreq(struct socket so, u_long, u_long, int, struct mbuf *,
	341	struct mbuf , struct mbuf , caddr_t , u_long ,
	342	u_long , struct ucred , struct mbuf , struct mbuf ,
	343	int , int );
	344	extern int nfs_netaddr_match(struct mbuf , struct mbuf );
	345	extern int nfs_badnam(struct mbuf , struct mbuf , struct mbuf *);
	346
	347	#endif /* KERNEL */
a8599e88	348	#endif /* __h_nfsm_subs */