From 666343f7f055c064375d48bb9a608730d7145beb Mon Sep 17 00:00:00 2001 From: dfr Date: Tue, 27 Jun 1995 11:07:30 +0000 Subject: Changes to support version 3 of the NFS protocol. The version 2 support has been tested (client+server) against FreeBSD-2.0, IRIX 5.3 and FreeBSD-current (using a loopback mount). The version 2 support is stable AFAIK. The version 3 support has been tested with a loopback mount and minimally against an IRIX 5.3 server. It needs more testing and may have problems. I have patched amd to support the new variable length filehandles although it will still only use version 2 of the protocol. Before booting a kernel with these changes, nfs clients will need to at least build and install /usr/sbin/mount_nfs. Servers will need to build and install /usr/sbin/mountd. NFS diskless support is untested. Obtained from: Rick Macklem --- sys/nfsserver/nfsm_subs.h | 333 +++++++++++++++++++++++++++++++++------------- 1 file changed, 243 insertions(+), 90 deletions(-) (limited to 'sys/nfsserver/nfsm_subs.h') diff --git a/sys/nfsserver/nfsm_subs.h b/sys/nfsserver/nfsm_subs.h index 030a985..9e89c57 100644 --- a/sys/nfsserver/nfsm_subs.h +++ b/sys/nfsserver/nfsm_subs.h @@ -34,12 +34,13 @@ * SUCH DAMAGE. * * @(#)nfsm_subs.h 8.1 (Berkeley) 6/16/93 - * $Id: nfsm_subs.h,v 1.5 1994/10/17 17:47:42 phk Exp $ + * $Id: nfsm_subs.h,v 1.6 1995/05/30 08:12:51 rgrimes Exp $ */ #ifndef _NFS_NFSM_SUBS_H_ #define _NFS_NFSM_SUBS_H_ + /* * These macros do strange and peculiar things to mbuf chains for * the assistance of the nfs code. To attempt to use them for any @@ -90,49 +91,153 @@ extern struct mbuf *nfsm_reqh(); mb->m_len += (s); \ bpos += (s); } -#define nfsm_dissect(a,c,s) \ +#define nfsm_dissect(a, c, s) \ { t1 = mtod(md, caddr_t)+md->m_len-dpos; \ if (t1 >= (s)) { \ (a) = (c)(dpos); \ dpos += (s); \ + } else if (t1 = nfsm_disct(&md, &dpos, (s), t1, &cp2)) { \ + error = t1; \ + m_freem(mrep); \ + goto nfsmout; \ } else { \ - error = nfsm_disct(&md, &dpos, (s), t1, &cp2); \ - if (error) { \ - m_freem(mrep); \ + (a) = (c)cp2; \ + } } + +#define nfsm_fhtom(v, v3) \ + { if (v3) { \ + t2 = nfsm_rndup(VTONFS(v)->n_fhsize) + NFSX_UNSIGNED; \ + if (t2 <= M_TRAILINGSPACE(mb)) { \ + nfsm_build(tl, u_long *, t2); \ + *tl++ = txdr_unsigned(VTONFS(v)->n_fhsize); \ + *(tl + ((t2>>2) - 2)) = 0; \ + bcopy((caddr_t)VTONFS(v)->n_fhp,(caddr_t)tl, \ + VTONFS(v)->n_fhsize); \ + } else if (t2 = nfsm_strtmbuf(&mb, &bpos, \ + (caddr_t)VTONFS(v)->n_fhp, VTONFS(v)->n_fhsize)) { \ + error = t2; \ + m_freem(mreq); \ goto nfsmout; \ - } else { \ - (a) = (c)cp2; \ } \ + } else { \ + nfsm_build(cp, caddr_t, NFSX_V2FH); \ + bcopy((caddr_t)VTONFS(v)->n_fhp, cp, NFSX_V2FH); \ } } -#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, v3) \ + { if (v3) { \ + nfsm_build(tl, u_long *, NFSX_UNSIGNED + NFSX_V3FH); \ + *tl++ = txdr_unsigned(NFSX_V3FH); \ + bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \ + } else { \ + nfsm_build(cp, caddr_t, NFSX_V2FH); \ + bcopy((caddr_t)(f), cp, NFSX_V2FH); \ + } } -#define nfsm_srvfhtom(f) \ - nfsm_build(cp,caddr_t,NFSX_FH); \ - bcopy((caddr_t)(f), cp, NFSX_FH) +#define nfsm_srvpostop_fh(f) \ + { nfsm_build(tl, u_long *, 2 * NFSX_UNSIGNED + NFSX_V3FH); \ + *tl++ = nfs_true; \ + *tl++ = txdr_unsigned(NFSX_V3FH); \ + bcopy((caddr_t)(f), (caddr_t)tl, NFSX_V3FH); \ + } -#define nfsm_mtofh(d,v) \ - { struct nfsnode *np; nfsv2fh_t *fhp; \ - nfsm_dissect(fhp,nfsv2fh_t *,NFSX_FH); \ - error = nfs_nget((d)->v_mount, fhp, &np); \ - if (error) { \ - m_freem(mrep); \ - goto nfsmout; \ +#define nfsm_mtofh(d, v, v3, f) \ + { struct nfsnode *ttnp; nfsfh_t *ttfhp; int ttfhsize; \ + if (v3) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + (f) = fxdr_unsigned(int, *tl); \ + } else \ + (f) = 1; \ + if (f) { \ + nfsm_getfh(ttfhp, ttfhsize, (v3)); \ + if (t1 = nfs_nget((d)->v_mount, ttfhp, ttfhsize, \ + &ttnp)) { \ + error = t1; \ + m_freem(mrep); \ + goto nfsmout; \ + } \ + (v) = NFSTOV(ttnp); \ + } \ + if (v3) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (f) \ + (f) = fxdr_unsigned(int, *tl); \ + else if (fxdr_unsigned(int, *tl)) \ + nfsm_adv(NFSX_V3FATTR); \ } \ - (v) = NFSTOV(np); \ - nfsm_loadattr(v, (struct vattr *)0); \ + if (f) \ + nfsm_loadattr((v), (struct vattr *)0); \ } -#define nfsm_loadattr(v,a) \ - { struct vnode *tvp = (v); \ - error = nfs_loadattrcache(&tvp, &md, &dpos, (a)); \ - if (error) { \ +#define nfsm_getfh(f, s, v3) \ + { if (v3) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (((s) = fxdr_unsigned(int, *tl)) <= 0 || \ + (s) > NFSX_V3FHMAX) { \ + m_freem(mrep); \ + error = EBADRPC; \ + goto nfsmout; \ + } \ + } else \ + (s) = NFSX_V2FH; \ + nfsm_dissect((f), nfsfh_t *, nfsm_rndup(s)); } + +#define nfsm_loadattr(v, a) \ + { struct vnode *ttvp = (v); \ + if (t1 = nfs_loadattrcache(&ttvp, &md, &dpos, (a))) { \ + error = t1; \ m_freem(mrep); \ goto nfsmout; \ } \ - (v) = tvp; } + (v) = ttvp; } + +#define nfsm_postop_attr(v, f) \ + { struct vnode *ttvp = (v); \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if ((f) = fxdr_unsigned(int, *tl)) { \ + if (t1 = nfs_loadattrcache(&ttvp, &md, &dpos, \ + (struct vattr *)0)) { \ + error = t1; \ + (f) = 0; \ + m_freem(mrep); \ + goto nfsmout; \ + } \ + (v) = ttvp; \ + } } + +/* Used as (f) for nfsm_wcc_data() */ +#define NFSV3_WCCRATTR 0 +#define NFSV3_WCCCHK 1 + +#define nfsm_wcc_data(v, f) \ + { int ttattrf, ttretf = 0; \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (*tl == nfs_true) { \ + nfsm_dissect(tl, u_long *, 6 * NFSX_UNSIGNED); \ + if (f) \ + ttretf = (VTONFS(v)->n_mtime == \ + fxdr_unsigned(u_long, *(tl + 2))); \ + } \ + nfsm_postop_attr((v), ttattrf); \ + if (f) { \ + (f) = ttretf; \ + } else { \ + (f) = ttattrf; \ + } } + +#define nfsm_v3sattr(s, a, u, g) \ + { (s)->sa_modetrue = nfs_true; \ + (s)->sa_mode = vtonfsv3_mode((a)->va_mode); \ + (s)->sa_uidtrue = nfs_true; \ + (s)->sa_uid = txdr_unsigned(u); \ + (s)->sa_gidtrue = nfs_true; \ + (s)->sa_gid = txdr_unsigned(g); \ + (s)->sa_sizefalse = nfs_false; \ + (s)->sa_atimetype = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ + txdr_nfsv3time(&(a)->va_atime, &(s)->sa_atime); \ + (s)->sa_mtimetype = txdr_unsigned(NFSV3SATTRTIME_TOCLIENT); \ + txdr_nfsv3time(&(a)->va_mtime, &(s)->sa_mtime); \ + } #define nfsm_strsiz(s,m) \ { nfsm_dissect(tl,u_long *,NFSX_UNSIGNED); \ @@ -149,16 +254,27 @@ extern struct mbuf *nfsm_reqh(); nfsm_reply(0); \ } } +#define nfsm_srvnamesiz(s) \ + { nfsm_dissect(tl,u_long *,NFSX_UNSIGNED); \ + if (((s) = fxdr_unsigned(long,*tl)) > NFS_MAXNAMLEN) \ + error = NFSERR_NAMETOL; \ + if ((s) <= 0) \ + error = EBADRPC; \ + if (error) \ + nfsm_reply(0); \ + } + #define nfsm_mtouio(p,s) \ if ((s) > 0 && \ - (error = nfsm_mbuftouio(&md,(p),(s),&dpos))) { \ + (t1 = nfsm_mbuftouio(&md,(p),(s),&dpos))) { \ + error = t1; \ m_freem(mrep); \ goto nfsmout; \ } #define nfsm_uiotom(p,s) \ - error = nfsm_uiotombuf((p),&mb,(s),&bpos); \ - if (error) { \ + if (t1 = nfsm_uiotombuf((p),&mb,(s),&bpos)) { \ + error = t1; \ m_freem(mreq); \ goto nfsmout; \ } @@ -172,10 +288,13 @@ extern struct mbuf *nfsm_reqh(); #define nfsm_rndup(a) (((a)+3)&(~0x3)) #define nfsm_request(v, t, p, c) \ - error = nfs_request((v), mreq, (t), (p), \ - (c), &mrep, &md, &dpos); \ - if (error) \ - goto nfsmout + if (error = nfs_request((v), mreq, (t), (p), \ + (c), &mrep, &md, &dpos)) { \ + if (error & NFSERR_RETERR) \ + error &= ~NFSERR_RETERR; \ + else \ + goto nfsmout; \ + } #define nfsm_strtom(a,s,m) \ if ((s) > (m)) { \ @@ -189,12 +308,10 @@ extern struct mbuf *nfsm_reqh(); *tl++ = txdr_unsigned(s); \ *(tl+((t2>>2)-2)) = 0; \ bcopy((caddr_t)(a), (caddr_t)tl, (s)); \ - } else { \ - error = nfsm_strtmbuf(&mb, &bpos, (a), (s)); \ - if (error) { \ - m_freem(mreq); \ - goto nfsmout; \ - } \ + } else if (t2 = nfsm_strtmbuf(&mb, &bpos, (a), (s))) { \ + error = t2; \ + m_freem(mreq); \ + goto nfsmout; \ } #define nfsm_srvdone \ @@ -204,33 +321,53 @@ extern struct mbuf *nfsm_reqh(); #define nfsm_reply(s) \ { \ nfsd->nd_repstat = error; \ - if (error) \ - (void) nfs_rephead(0, nfsd, error, cache, &frev, \ + if (error && !(nfsd->nd_flag & ND_NFSV3)) \ + (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ mrq, &mb, &bpos); \ else \ - (void) nfs_rephead((s), nfsd, error, cache, &frev, \ + (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ mrq, &mb, &bpos); \ m_freem(mrep); \ mreq = *mrq; \ - if (error) \ + if (error && (!(nfsd->nd_flag & ND_NFSV3) || \ + error == EBADRPC)) \ return(0); \ } +#define nfsm_writereply(s, v3) \ + { \ + nfsd->nd_repstat = error; \ + if (error && !(v3)) \ + (void) nfs_rephead(0, nfsd, slp, error, cache, &frev, \ + &mreq, &mb, &bpos); \ + else \ + (void) nfs_rephead((s), nfsd, slp, error, cache, &frev, \ + &mreq, &mb, &bpos); \ + } + #define nfsm_adv(s) \ - t1 = mtod(md, caddr_t)+md->m_len-dpos; \ + { t1 = mtod(md, caddr_t)+md->m_len-dpos; \ if (t1 >= (s)) { \ dpos += (s); \ - } else { \ - error = nfs_adv(&md, &dpos, (s), t1); \ - if (error) { \ - m_freem(mrep); \ - goto nfsmout; \ - } \ - } + } else if (t1 = nfs_adv(&md, &dpos, (s), t1)) { \ + error = t1; \ + m_freem(mrep); \ + goto nfsmout; \ + } } #define nfsm_srvmtofh(f) \ - nfsm_dissect(tl, u_long *, NFSX_FH); \ - bcopy((caddr_t)tl, (caddr_t)f, NFSX_FH) + { if (nfsd->nd_flag & ND_NFSV3) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (fxdr_unsigned(int, *tl) != NFSX_V3FH) { \ + error = EBADRPC; \ + nfsm_reply(0); \ + } \ + } \ + nfsm_dissect(tl, u_long *, NFSX_V3FH); \ + bcopy((caddr_t)tl, (caddr_t)(f), NFSX_V3FH); \ + if ((nfsd->nd_flag & ND_NFSV3) == 0) \ + nfsm_adv(NFSX_V2FH - NFSX_V3FH); \ + } #define nfsm_clget \ if (bp >= be) { \ @@ -246,41 +383,57 @@ extern struct mbuf *nfsm_reqh(); } \ 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); \ - if (nfsd->nd_nqlflag == NQL_NOVAL) { \ - fp->fa_nfsblocksize = txdr_unsigned(vap->va_blocksize); \ - if (vap->va_type == VFIFO) \ - fp->fa_nfsrdev = 0xffffffff; \ - else \ - fp->fa_nfsrdev = txdr_unsigned(vap->va_rdev); \ - fp->fa_nfsfsid = txdr_unsigned(vap->va_fsid); \ - fp->fa_nfsfileid = txdr_unsigned(vap->va_fileid); \ - fp->fa_nfssize = txdr_unsigned(vap->va_size); \ - fp->fa_nfsblocks = txdr_unsigned(vap->va_bytes / NFS_FABLKSIZE); \ - txdr_nfstime(&vap->va_atime, &fp->fa_nfsatime); \ - txdr_nfstime(&vap->va_mtime, &fp->fa_nfsmtime); \ - txdr_nfstime(&vap->va_ctime, &fp->fa_nfsctime); \ - } else { \ - fp->fa_nqblocksize = txdr_unsigned(vap->va_blocksize); \ - if (vap->va_type == VFIFO) \ - fp->fa_nqrdev = 0xffffffff; \ - else \ - fp->fa_nqrdev = txdr_unsigned(vap->va_rdev); \ - fp->fa_nqfsid = txdr_unsigned(vap->va_fsid); \ - fp->fa_nqfileid = txdr_unsigned(vap->va_fileid); \ - txdr_hyper(&vap->va_size, &fp->fa_nqsize); \ - txdr_hyper(&vap->va_bytes, &fp->fa_nqbytes); \ - txdr_nqtime(&vap->va_atime, &fp->fa_nqatime); \ - txdr_nqtime(&vap->va_mtime, &fp->fa_nqmtime); \ - txdr_nqtime(&vap->va_ctime, &fp->fa_nqctime); \ - fp->fa_nqflags = txdr_unsigned(vap->va_flags); \ - fp->fa_nqgen = txdr_unsigned(vap->va_gen); \ - txdr_hyper(&vap->va_filerev, &fp->fa_nqfilerev); \ - } +#define nfsm_srvfillattr(a, f) \ + nfsm_srvfattr(nfsd, (a), (f)) + +#define nfsm_srvwcc_data(br, b, ar, a) \ + nfsm_srvwcc(nfsd, (br), (b), (ar), (a), &mb, &bpos) + +#define nfsm_srvpostop_attr(r, a) \ + nfsm_srvpostopattr(nfsd, (r), (a), &mb, &bpos) + +#define nfsm_srvsattr(a) \ + { nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (*tl == nfs_true) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + (a)->va_mode = nfstov_mode(*tl); \ + } \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (*tl == nfs_true) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + (a)->va_uid = fxdr_unsigned(uid_t, *tl); \ + } \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (*tl == nfs_true) { \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + (a)->va_gid = fxdr_unsigned(gid_t, *tl); \ + } \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + if (*tl == nfs_true) { \ + nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED); \ + fxdr_hyper(tl, &(a)->va_size); \ + } \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + switch (fxdr_unsigned(int, *tl)) { \ + case NFSV3SATTRTIME_TOCLIENT: \ + nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED); \ + fxdr_nfsv3time(tl, &(a)->va_atime); \ + break; \ + case NFSV3SATTRTIME_TOSERVER: \ + (a)->va_atime.ts_sec = time.tv_sec; \ + (a)->va_atime.ts_nsec = time.tv_usec * 1000; \ + break; \ + }; \ + nfsm_dissect(tl, u_long *, NFSX_UNSIGNED); \ + switch (fxdr_unsigned(int, *tl)) { \ + case NFSV3SATTRTIME_TOCLIENT: \ + nfsm_dissect(tl, u_long *, 2 * NFSX_UNSIGNED); \ + fxdr_nfsv3time(tl, &(a)->va_mtime); \ + break; \ + case NFSV3SATTRTIME_TOSERVER: \ + (a)->va_mtime.ts_sec = time.tv_sec; \ + (a)->va_mtime.ts_nsec = time.tv_usec * 1000; \ + break; \ + }; } #endif -- cgit v1.1