diff options
Diffstat (limited to 'sys/fs/nfs/nfs_commonsubs.c')
| -rw-r--r-- | sys/fs/nfs/nfs_commonsubs.c | 45 |
1 files changed, 39 insertions, 6 deletions
diff --git a/sys/fs/nfs/nfs_commonsubs.c b/sys/fs/nfs/nfs_commonsubs.c index 67e33193ecec..7f5b29ca2085 100644 --- a/sys/fs/nfs/nfs_commonsubs.c +++ b/sys/fs/nfs/nfs_commonsubs.c @@ -187,7 +187,7 @@ struct nfsv4_opflag nfsv4_opflag[NFSV42_NOPS] = { { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Read Plus */ { 0, 1, 0, 0, LK_SHARED, 1, 0 }, /* Seek */ { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Write Same */ - { 0, 0, 0, 0, LK_EXCLUSIVE, 1, 1 }, /* Clone */ + { 2, 1, 1, 0, LK_SHARED, 1, 0 }, /* Clone */ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Getxattr */ { 0, 1, 1, 1, LK_EXCLUSIVE, 1, 1 }, /* Setxattr */ { 0, 1, 0, 0, LK_SHARED, 1, 1 }, /* Listxattrs */ @@ -219,7 +219,7 @@ NFSD_VNET_DEFINE_STATIC(u_char *, nfsrv_dnsname) = NULL; static int nfs_bigreply[NFSV42_NPROCS] = { 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 0, 0, 1, 0, 0, 0, 0, 0, 0 }; + 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 }; /* local functions */ static int nfsrv_skipace(struct nfsrv_descript *nd, int *acesizep); @@ -310,6 +310,7 @@ static struct { { NFSV4OP_LAYOUTERROR, 1, "LayoutError", 11, }, { NFSV4OP_VERIFY, 3, "AppendWrite", 11, }, { NFSV4OP_OPENATTR, 3, "OpenAttr", 8, }, + { NFSV4OP_SAVEFH, 5, "Clone", 5, }, }; /* @@ -319,7 +320,7 @@ static int nfs_bigrequest[NFSV42_NPROCS] = { 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, - 0, 1, 0 + 0, 1, 0, 0 }; /* @@ -648,7 +649,7 @@ nfscl_fillsattr(struct nfsrv_descript *nd, struct vattr *vap, NFSSETBIT_ATTRBIT(&attrbits, NFSATTRBIT_TIMECREATE); (void) nfsv4_fillattr(nd, vp->v_mount, vp, NULL, vap, NULL, 0, &attrbits, NULL, NULL, 0, 0, 0, 0, (uint64_t)0, NULL, - false, false, false); + false, false, false, 0); break; } } @@ -1302,7 +1303,7 @@ nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp, struct nfsv3_pathconf *pc, struct statfs *sbp, struct nfsstatfs *sfp, struct nfsfsinfo *fsp, NFSACL_T *aclp, int compare, int *retcmpp, u_int32_t *leasep, u_int32_t *rderrp, bool *has_namedattrp, - NFSPROC_T *p, struct ucred *cred) + uint32_t *clone_blksizep, NFSPROC_T *p, struct ucred *cred) { u_int32_t *tl; int i = 0, j, k, l = 0, m, bitpos, attrsum = 0; @@ -1437,6 +1438,13 @@ nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp, NFSCLRBIT_ATTRBIT(&checkattrbits, NFSATTRBIT_SYSTEM); } + /* Some filesystems do not support block cloning */ + if (vp == NULL || VOP_PATHCONF(vp, + _PC_CLONE_BLKSIZE, &has_pathconf) != 0) + has_pathconf = 0; + if (has_pathconf == 0) + NFSCLRBIT_ATTRBIT(&checkattrbits, + NFSATTRBIT_CLONEBLKSIZE); if (!NFSEQUAL_ATTRBIT(&retattrbits, &checkattrbits) || retnotsup) *retcmpp = NFSERR_NOTSAME; @@ -2374,6 +2382,23 @@ nfsv4_loadattr(struct nfsrv_descript *nd, vnode_t vp, if (compare && !(*retcmpp) && i != nfs_srvmaxio) *retcmpp = NFSERR_NOTSAME; break; + case NFSATTRBIT_CLONEBLKSIZE: + NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); + if (compare) { + if (!(*retcmpp)) { + if (vp == NULL || VOP_PATHCONF(vp, + _PC_CLONE_BLKSIZE, &has_pathconf) + != 0) + has_pathconf = 0; + if (has_pathconf != + fxdr_unsigned(uint32_t, *tl)) + *retcmpp = NFSERR_NOTSAME; + } + } else if (clone_blksizep != NULL) { + *clone_blksizep = fxdr_unsigned(uint32_t, *tl); + } + attrsum += NFSX_UNSIGNED; + break; case NFSATTRBIT_CHANGEATTRTYPE: NFSM_DISSECT(tl, uint32_t *, NFSX_UNSIGNED); if (compare) { @@ -2648,7 +2673,7 @@ nfsv4_fillattr(struct nfsrv_descript *nd, struct mount *mp, vnode_t vp, nfsattrbit_t *attrbitp, struct ucred *cred, NFSPROC_T *p, int isdgram, int reterr, int supports_nfsv4acls, int at_root, uint64_t mounted_on_fileno, struct statfs *pnfssf, bool xattrsupp, bool has_hiddensystem, - bool has_namedattr) + bool has_namedattr, uint32_t clone_blksize) { int bitpos, retnum = 0; u_int32_t *tl; @@ -2771,6 +2796,9 @@ nfsv4_fillattr(struct nfsrv_descript *nd, struct mount *mp, vnode_t vp, NFSCLRBIT_ATTRBIT(&attrbits, NFSATTRBIT_HIDDEN); NFSCLRBIT_ATTRBIT(&attrbits, NFSATTRBIT_SYSTEM); } + if (clone_blksize == 0) + NFSCLRBIT_ATTRBIT(&attrbits, + NFSATTRBIT_CLONEBLKSIZE); retnum += nfsrv_putattrbit(nd, &attrbits); break; case NFSATTRBIT_TYPE: @@ -3249,6 +3277,11 @@ nfsv4_fillattr(struct nfsrv_descript *nd, struct mount *mp, vnode_t vp, } retnum += NFSX_UNSIGNED; break; + case NFSATTRBIT_CLONEBLKSIZE: + NFSM_BUILD(tl, uint32_t *, NFSX_UNSIGNED); + *tl = txdr_unsigned(clone_blksize); + retnum += NFSX_UNSIGNED; + break; default: printf("EEK! Bad V4 attribute bitpos=%d\n", bitpos); } |