191d632c8Sgwr /* 291d632c8Sgwr * CDDL HEADER START 391d632c8Sgwr * 491d632c8Sgwr * The contents of this file are subject to the terms of the 591d632c8Sgwr * Common Development and Distribution License (the "License"). 691d632c8Sgwr * You may not use this file except in compliance with the License. 791d632c8Sgwr * 891d632c8Sgwr * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 991d632c8Sgwr * or http://www.opensolaris.org/os/licensing. 1091d632c8Sgwr * See the License for the specific language governing permissions 1191d632c8Sgwr * and limitations under the License. 1291d632c8Sgwr * 1391d632c8Sgwr * When distributing Covered Code, include this CDDL HEADER in each 1491d632c8Sgwr * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1591d632c8Sgwr * If applicable, add the following below this CDDL HEADER, with the 1691d632c8Sgwr * fields enclosed by brackets "[]" replaced with your own identifying 1791d632c8Sgwr * information: Portions Copyright [yyyy] [name of copyright owner] 1891d632c8Sgwr * 1991d632c8Sgwr * CDDL HEADER END 2091d632c8Sgwr */ 2191d632c8Sgwr 2291d632c8Sgwr /* 23*613a2f6bSGordon Ross * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 2491d632c8Sgwr * Use is subject to license terms. 2591d632c8Sgwr */ 2691d632c8Sgwr 2791d632c8Sgwr /* 2891d632c8Sgwr * Functions supporting Solaris Extended Attributes, 2991d632c8Sgwr * used to provide access to CIFS "named streams". 3091d632c8Sgwr */ 3191d632c8Sgwr 3291d632c8Sgwr #include <sys/systm.h> 3391d632c8Sgwr #include <sys/cred.h> 3491d632c8Sgwr #include <sys/vnode.h> 3591d632c8Sgwr #include <sys/vfs.h> 3691d632c8Sgwr #include <sys/filio.h> 3791d632c8Sgwr #include <sys/uio.h> 3891d632c8Sgwr #include <sys/dirent.h> 3991d632c8Sgwr #include <sys/errno.h> 4091d632c8Sgwr #include <sys/sysmacros.h> 4191d632c8Sgwr #include <sys/kmem.h> 4291d632c8Sgwr #include <sys/stat.h> 4391d632c8Sgwr #include <sys/cmn_err.h> 4491d632c8Sgwr #include <sys/dnlc.h> 4591d632c8Sgwr #include <sys/u8_textprep.h> 4691d632c8Sgwr 4791d632c8Sgwr #include <netsmb/smb_osdep.h> 4891d632c8Sgwr #include <netsmb/smb.h> 4991d632c8Sgwr #include <netsmb/smb_conn.h> 5091d632c8Sgwr #include <netsmb/smb_subr.h> 5191d632c8Sgwr #include <netsmb/smb_rq.h> 5291d632c8Sgwr 5391d632c8Sgwr #include <smbfs/smbfs.h> 5491d632c8Sgwr #include <smbfs/smbfs_node.h> 5591d632c8Sgwr #include <smbfs/smbfs_subr.h> 5691d632c8Sgwr 5791d632c8Sgwr #include <fs/fs_subr.h> 5891d632c8Sgwr 5991d632c8Sgwr /* 6091d632c8Sgwr * Solaris wants there to be a directory node to contain 6191d632c8Sgwr * all the extended attributes. The SMB protocol does not 6291d632c8Sgwr * really support a directory here, and uses very different 6391d632c8Sgwr * operations to list attributes, etc. so we "fake up" an 6491d632c8Sgwr * smbnode here to represent the attributes directory. 6591d632c8Sgwr * 6691d632c8Sgwr * We need to give this (fake) directory a unique identity, 6791d632c8Sgwr * and since we're using the full remote pathname as the 6891d632c8Sgwr * unique identity of all nodes, the easiest thing to do 6991d632c8Sgwr * here is append a colon (:) to the given pathname. 7091d632c8Sgwr * 7191d632c8Sgwr * There are several places where smbfs_fullpath and its 7291d632c8Sgwr * callers must decide what separator to use when building 7391d632c8Sgwr * a remote path name, and the rule is now as follows: 7491d632c8Sgwr * 1: When no XATTR involved, use "\\" as the separator. 7591d632c8Sgwr * 2: Traversal into the (fake) XATTR dir adds one ":" 7691d632c8Sgwr * 3: Children of the XATTR dir add nothing (sep=0) 7791d632c8Sgwr * The result should be _one_ colon before the attr name. 7891d632c8Sgwr */ 7991d632c8Sgwr 8091d632c8Sgwr /* ARGSUSED */ 8191d632c8Sgwr int 8291d632c8Sgwr smbfs_get_xattrdir(vnode_t *pvp, vnode_t **vpp, cred_t *cr, int flags) 8391d632c8Sgwr { 8491d632c8Sgwr vnode_t *xvp; 8591d632c8Sgwr smbnode_t *pnp, *xnp; 8691d632c8Sgwr 8791d632c8Sgwr pnp = VTOSMB(pvp); 8891d632c8Sgwr 8991d632c8Sgwr xvp = smbfs_make_node(pvp->v_vfsp, 9091d632c8Sgwr pnp->n_rpath, pnp->n_rplen, 9191d632c8Sgwr NULL, 0, ':', NULL); 9291d632c8Sgwr ASSERT(xvp); 9391d632c8Sgwr /* Note: xvp has a VN_HOLD, which our caller expects. */ 9491d632c8Sgwr xnp = VTOSMB(xvp); 9591d632c8Sgwr 9691d632c8Sgwr /* If it's a new node, initialize. */ 9791d632c8Sgwr if (xvp->v_type == VNON) { 9891d632c8Sgwr 9991d632c8Sgwr mutex_enter(&xvp->v_lock); 10091d632c8Sgwr xvp->v_type = VDIR; 10191d632c8Sgwr xvp->v_flag |= V_XATTRDIR; 10291d632c8Sgwr mutex_exit(&xvp->v_lock); 10391d632c8Sgwr 10491d632c8Sgwr mutex_enter(&xnp->r_statelock); 10591d632c8Sgwr xnp->n_flag |= N_XATTR; 10691d632c8Sgwr mutex_exit(&xnp->r_statelock); 10791d632c8Sgwr } 10891d632c8Sgwr 10991d632c8Sgwr /* Success! */ 11091d632c8Sgwr *vpp = xvp; 11191d632c8Sgwr return (0); 11291d632c8Sgwr } 11391d632c8Sgwr 11491d632c8Sgwr /* 11591d632c8Sgwr * Find the parent of an XATTR directory or file, 11691d632c8Sgwr * by trimming off the ":attrname" part of rpath. 11791d632c8Sgwr * Called on XATTR files to get the XATTR dir, and 11891d632c8Sgwr * called on the XATTR dir to get the real object 11991d632c8Sgwr * under which the (faked up) XATTR dir lives. 12091d632c8Sgwr */ 12191d632c8Sgwr int 12291d632c8Sgwr smbfs_xa_parent(vnode_t *vp, vnode_t **vpp) 12391d632c8Sgwr { 12491d632c8Sgwr smbnode_t *np = VTOSMB(vp); 12591d632c8Sgwr vnode_t *pvp; 12691d632c8Sgwr int rplen; 12791d632c8Sgwr 12891d632c8Sgwr if ((np->n_flag & N_XATTR) == 0) 12991d632c8Sgwr return (EINVAL); 13091d632c8Sgwr 13191d632c8Sgwr if (vp->v_flag & V_XATTRDIR) { 13291d632c8Sgwr /* 13391d632c8Sgwr * Want the parent of the XATTR directory. 13491d632c8Sgwr * That's easy: just remove trailing ":" 13591d632c8Sgwr */ 13691d632c8Sgwr rplen = np->n_rplen - 1; 13791d632c8Sgwr if (rplen < 1) { 13891d632c8Sgwr SMBVDEBUG("rplen < 1?"); 13991d632c8Sgwr return (ENOENT); 14091d632c8Sgwr } 14191d632c8Sgwr if (np->n_rpath[rplen] != ':') { 14291d632c8Sgwr SMBVDEBUG("last is not colon"); 14391d632c8Sgwr return (ENOENT); 14491d632c8Sgwr } 14591d632c8Sgwr } else { 14691d632c8Sgwr /* 14791d632c8Sgwr * Want the XATTR directory given 14891d632c8Sgwr * one of its XATTR files (children). 14991d632c8Sgwr * Find the ":" and trim after it. 15091d632c8Sgwr */ 15191d632c8Sgwr for (rplen = 1; rplen < np->n_rplen; rplen++) 15291d632c8Sgwr if (np->n_rpath[rplen] == ':') 15391d632c8Sgwr break; 15491d632c8Sgwr /* Should have found ":stream_name" */ 15591d632c8Sgwr if (rplen >= np->n_rplen) { 15691d632c8Sgwr SMBVDEBUG("colon not found"); 15791d632c8Sgwr return (ENOENT); 15891d632c8Sgwr } 15991d632c8Sgwr rplen++; /* keep the ":" */ 16091d632c8Sgwr if (rplen >= np->n_rplen) { 16191d632c8Sgwr SMBVDEBUG("no stream name"); 16291d632c8Sgwr return (ENOENT); 16391d632c8Sgwr } 16491d632c8Sgwr } 16591d632c8Sgwr 16691d632c8Sgwr pvp = smbfs_make_node(vp->v_vfsp, 16791d632c8Sgwr np->n_rpath, rplen, 16891d632c8Sgwr NULL, 0, 0, NULL); 16991d632c8Sgwr ASSERT(pvp); 17091d632c8Sgwr 17191d632c8Sgwr /* Note: pvp has a VN_HOLD from _make_node */ 17291d632c8Sgwr *vpp = pvp; 17391d632c8Sgwr return (0); 17491d632c8Sgwr } 17591d632c8Sgwr 17691d632c8Sgwr /* 17791d632c8Sgwr * This is called by smbfs_pathconf to find out 17891d632c8Sgwr * if some file has any extended attributes. 17991d632c8Sgwr * There's no short-cut way to find out, so we 18091d632c8Sgwr * just list the attributes the usual way and 18191d632c8Sgwr * check for an empty result. 18291d632c8Sgwr * 18391d632c8Sgwr * Returns 1: (exists) or 0: (none found) 18491d632c8Sgwr */ 18591d632c8Sgwr int 18691d632c8Sgwr smbfs_xa_exists(vnode_t *vp, cred_t *cr) 18791d632c8Sgwr { 18891d632c8Sgwr smbnode_t *xnp; 18991d632c8Sgwr vnode_t *xvp; 19091d632c8Sgwr struct smb_cred scred; 19191d632c8Sgwr struct smbfs_fctx ctx; 19291d632c8Sgwr int error, rc = 0; 19391d632c8Sgwr 19491d632c8Sgwr /* Get the xattr dir */ 19591d632c8Sgwr error = smbfs_get_xattrdir(vp, &xvp, cr, LOOKUP_XATTR); 19691d632c8Sgwr if (error) 19791d632c8Sgwr return (0); 19891d632c8Sgwr /* NB: have VN_HOLD on xpv */ 19991d632c8Sgwr xnp = VTOSMB(xvp); 20091d632c8Sgwr 201*613a2f6bSGordon Ross smb_credinit(&scred, cr); 20291d632c8Sgwr 20391d632c8Sgwr bzero(&ctx, sizeof (ctx)); 20491d632c8Sgwr ctx.f_flags = SMBFS_RDD_FINDFIRST; 20591d632c8Sgwr ctx.f_dnp = xnp; 20691d632c8Sgwr ctx.f_scred = &scred; 20791d632c8Sgwr ctx.f_ssp = xnp->n_mount->smi_share; 20891d632c8Sgwr 20991d632c8Sgwr error = smbfs_xa_findopen(&ctx, xnp, "*", 1); 21091d632c8Sgwr if (error) 21191d632c8Sgwr goto out; 21291d632c8Sgwr 21391d632c8Sgwr error = smbfs_xa_findnext(&ctx, 1); 21491d632c8Sgwr if (error) 21591d632c8Sgwr goto out; 21691d632c8Sgwr 21791d632c8Sgwr /* Have at least one named stream. */ 21891d632c8Sgwr SMBVDEBUG("ctx.f_name: %s\n", ctx.f_name); 21991d632c8Sgwr rc = 1; 22091d632c8Sgwr 22191d632c8Sgwr out: 22291d632c8Sgwr /* NB: Always call findclose, error or not. */ 22391d632c8Sgwr (void) smbfs_xa_findclose(&ctx); 22491d632c8Sgwr smb_credrele(&scred); 22591d632c8Sgwr VN_RELE(xvp); 22691d632c8Sgwr return (rc); 22791d632c8Sgwr } 22891d632c8Sgwr 22991d632c8Sgwr 23091d632c8Sgwr /* 23191d632c8Sgwr * This is called to get attributes (size, etc.) of either 23291d632c8Sgwr * the "faked up" XATTR directory or a named stream. 23391d632c8Sgwr */ 23491d632c8Sgwr int 23591d632c8Sgwr smbfs_xa_getfattr(struct smbnode *xnp, struct smbfattr *fap, 23691d632c8Sgwr struct smb_cred *scrp) 23791d632c8Sgwr { 23891d632c8Sgwr vnode_t *xvp; /* xattr */ 23991d632c8Sgwr vnode_t *pvp; /* parent */ 24091d632c8Sgwr smbnode_t *pnp; /* parent */ 24191d632c8Sgwr int error, nlen; 24291d632c8Sgwr const char *name, *sname; 24391d632c8Sgwr 24491d632c8Sgwr xvp = SMBTOV(xnp); 24591d632c8Sgwr 24691d632c8Sgwr /* 24791d632c8Sgwr * Simulate smbfs_smb_getfattr() for a named stream. 24891d632c8Sgwr * OK to leave a,c,m times zero (expected w/ XATTR). 24991d632c8Sgwr * The XATTR directory is easy (all fake). 25091d632c8Sgwr */ 25191d632c8Sgwr if (xvp->v_flag & V_XATTRDIR) { 25291d632c8Sgwr fap->fa_attr = SMB_FA_DIR; 25391d632c8Sgwr fap->fa_size = DEV_BSIZE; 25491d632c8Sgwr return (0); 25591d632c8Sgwr } 25691d632c8Sgwr 25791d632c8Sgwr /* 25891d632c8Sgwr * Do a lookup in the XATTR directory, 25991d632c8Sgwr * using the stream name (last part) 26091d632c8Sgwr * from the xattr node. 26191d632c8Sgwr */ 26291d632c8Sgwr error = smbfs_xa_parent(xvp, &pvp); 26391d632c8Sgwr if (error) 26491d632c8Sgwr return (error); 26591d632c8Sgwr /* Note: pvp has a VN_HOLD */ 26691d632c8Sgwr pnp = VTOSMB(pvp); 26791d632c8Sgwr 26891d632c8Sgwr /* Get stream name (ptr and length) */ 26991d632c8Sgwr ASSERT(xnp->n_rplen > pnp->n_rplen); 27091d632c8Sgwr nlen = xnp->n_rplen - pnp->n_rplen; 27191d632c8Sgwr name = xnp->n_rpath + pnp->n_rplen; 27291d632c8Sgwr sname = name; 27391d632c8Sgwr 27491d632c8Sgwr /* Note: this can allocate a new "name" */ 27591d632c8Sgwr error = smbfs_smb_lookup(pnp, &name, &nlen, fap, scrp); 27691d632c8Sgwr if (error == 0 && name != sname) 27791d632c8Sgwr smbfs_name_free(name, nlen); 27891d632c8Sgwr 27991d632c8Sgwr VN_RELE(pvp); 28091d632c8Sgwr 28191d632c8Sgwr return (error); 28291d632c8Sgwr } 28391d632c8Sgwr 28491d632c8Sgwr /* 28591d632c8Sgwr * Fetch the entire attribute list here in findopen. 28691d632c8Sgwr * Will parse the results in findnext. 28791d632c8Sgwr * 28891d632c8Sgwr * This is called on the XATTR directory, so we 28991d632c8Sgwr * have to get the (real) parent object first. 29091d632c8Sgwr */ 29191d632c8Sgwr /* ARGSUSED */ 29291d632c8Sgwr int 29391d632c8Sgwr smbfs_xa_findopen(struct smbfs_fctx *ctx, struct smbnode *dnp, 29491d632c8Sgwr const char *wildcard, int wclen) 29591d632c8Sgwr { 29691d632c8Sgwr vnode_t *pvp; /* parent */ 29791d632c8Sgwr smbnode_t *pnp; 29891d632c8Sgwr struct smb_t2rq *t2p; 29991d632c8Sgwr struct smb_vc *vcp = SSTOVC(ctx->f_ssp); 30091d632c8Sgwr struct mbchain *mbp; 30191d632c8Sgwr int error; 30291d632c8Sgwr 30391d632c8Sgwr ASSERT(dnp->n_flag & N_XATTR); 30491d632c8Sgwr 30591d632c8Sgwr ctx->f_type = ft_XA; 306*613a2f6bSGordon Ross ctx->f_namesz = SMB_MAXFNAMELEN + 1; 307*613a2f6bSGordon Ross if (SMB_UNICODE_STRINGS(SSTOVC(ctx->f_ssp))) 308*613a2f6bSGordon Ross ctx->f_namesz *= 2; 309*613a2f6bSGordon Ross ctx->f_name = kmem_alloc(ctx->f_namesz, KM_SLEEP); 31091d632c8Sgwr 31191d632c8Sgwr error = smbfs_xa_parent(SMBTOV(dnp), &pvp); 31291d632c8Sgwr if (error) 31391d632c8Sgwr return (error); 31491d632c8Sgwr ASSERT(pvp); 31591d632c8Sgwr /* Note: pvp has a VN_HOLD */ 31691d632c8Sgwr pnp = VTOSMB(pvp); 31791d632c8Sgwr 31891d632c8Sgwr if (ctx->f_t2) { 31991d632c8Sgwr smb_t2_done(ctx->f_t2); 32091d632c8Sgwr ctx->f_t2 = NULL; 32191d632c8Sgwr } 32291d632c8Sgwr 32391d632c8Sgwr error = smb_t2_alloc(SSTOCP(ctx->f_ssp), 32491d632c8Sgwr SMB_TRANS2_QUERY_PATH_INFORMATION, 32591d632c8Sgwr ctx->f_scred, &t2p); 32691d632c8Sgwr if (error) 32791d632c8Sgwr goto out; 32891d632c8Sgwr ctx->f_t2 = t2p; 32991d632c8Sgwr 33091d632c8Sgwr mbp = &t2p->t2_tparam; 33191d632c8Sgwr mb_init(mbp); 33291d632c8Sgwr mb_put_uint16le(mbp, SMB_QFILEINFO_STREAM_INFO); 33391d632c8Sgwr mb_put_uint32le(mbp, 0); 33491d632c8Sgwr error = smbfs_fullpath(mbp, vcp, pnp, NULL, NULL, 0); 33591d632c8Sgwr if (error) 33691d632c8Sgwr goto out; 33791d632c8Sgwr t2p->t2_maxpcount = 2; 33891d632c8Sgwr t2p->t2_maxdcount = INT16_MAX; 33991d632c8Sgwr error = smb_t2_request(t2p); 34091d632c8Sgwr if (error) { 34191d632c8Sgwr if (smb_t2_err(t2p) == NT_STATUS_INVALID_PARAMETER) 34291d632c8Sgwr error = ENOTSUP; 34391d632c8Sgwr } 34491d632c8Sgwr /* 34591d632c8Sgwr * No returned parameters to parse. 34691d632c8Sgwr * Returned data are in t2_rdata, 34791d632c8Sgwr * which we'll parse in _findnext. 34891d632c8Sgwr * However, save the wildcard. 34991d632c8Sgwr */ 35091d632c8Sgwr ctx->f_wildcard = wildcard; 35191d632c8Sgwr ctx->f_wclen = wclen; 35291d632c8Sgwr 35391d632c8Sgwr out: 35491d632c8Sgwr VN_RELE(pvp); 35591d632c8Sgwr return (error); 35691d632c8Sgwr } 35791d632c8Sgwr 35891d632c8Sgwr /* 35991d632c8Sgwr * Get the next name in an XATTR directory into f_name 36091d632c8Sgwr */ 36191d632c8Sgwr /* ARGSUSED */ 36291d632c8Sgwr int 36391d632c8Sgwr smbfs_xa_findnext(struct smbfs_fctx *ctx, uint16_t limit) 36491d632c8Sgwr { 36591d632c8Sgwr struct mdchain *mdp; 36691d632c8Sgwr struct smb_t2rq *t2p; 36791d632c8Sgwr uint32_t size, next; 36891d632c8Sgwr uint64_t llongint; 36991d632c8Sgwr int error, skip, used, nmlen; 37091d632c8Sgwr 37191d632c8Sgwr t2p = ctx->f_t2; 37291d632c8Sgwr mdp = &t2p->t2_rdata; 37391d632c8Sgwr 37491d632c8Sgwr if (ctx->f_flags & SMBFS_RDD_FINDSINGLE) { 37591d632c8Sgwr ASSERT(ctx->f_wildcard); 37691d632c8Sgwr SMBVDEBUG("wildcard: %s\n", ctx->f_wildcard); 37791d632c8Sgwr } 37891d632c8Sgwr 37991d632c8Sgwr again: 38091d632c8Sgwr if (ctx->f_flags & SMBFS_RDD_EOF) 38191d632c8Sgwr return (ENOENT); 38291d632c8Sgwr 38391d632c8Sgwr /* Parse FILE_STREAM_INFORMATION */ 38491d632c8Sgwr if ((error = md_get_uint32le(mdp, &next)) != 0) /* offset to */ 38591d632c8Sgwr return (ENOENT); 38691d632c8Sgwr if ((error = md_get_uint32le(mdp, &size)) != 0) /* name len */ 38791d632c8Sgwr return (ENOENT); 38891d632c8Sgwr md_get_uint64le(mdp, &llongint); /* file size */ 38991d632c8Sgwr ctx->f_attr.fa_size = llongint; 39091d632c8Sgwr md_get_uint64le(mdp, NULL); /* alloc. size */ 39191d632c8Sgwr used = 4 + 4 + 8 + 8; /* how much we consumed */ 39291d632c8Sgwr 39391d632c8Sgwr /* 39491d632c8Sgwr * Copy the string, but skip the first char (":") 39591d632c8Sgwr * Watch out for zero-length strings here. 39691d632c8Sgwr */ 39791d632c8Sgwr if (SMB_UNICODE_STRINGS(SSTOVC(ctx->f_ssp))) { 39891d632c8Sgwr if (size >= 2) { 39991d632c8Sgwr size -= 2; used += 2; 40091d632c8Sgwr md_get_uint16le(mdp, NULL); 40191d632c8Sgwr } 40291d632c8Sgwr nmlen = min(size, SMB_MAXFNAMELEN * 2); 40391d632c8Sgwr } else { 40491d632c8Sgwr if (size >= 1) { 40591d632c8Sgwr size -= 1; used += 1; 40691d632c8Sgwr md_get_uint8(mdp, NULL); 40791d632c8Sgwr } 40891d632c8Sgwr nmlen = min(size, SMB_MAXFNAMELEN); 40991d632c8Sgwr } 41091d632c8Sgwr 411*613a2f6bSGordon Ross ASSERT(nmlen < ctx->f_namesz); 41291d632c8Sgwr ctx->f_nmlen = nmlen; 41391d632c8Sgwr error = md_get_mem(mdp, ctx->f_name, nmlen, MB_MSYSTEM); 41491d632c8Sgwr if (error) 41591d632c8Sgwr return (error); 41691d632c8Sgwr used += nmlen; 41791d632c8Sgwr 41891d632c8Sgwr /* 41991d632c8Sgwr * Convert UCS-2 to UTF-8 42091d632c8Sgwr */ 42191d632c8Sgwr smbfs_fname_tolocal(ctx); 42291d632c8Sgwr if (nmlen) 42391d632c8Sgwr SMBVDEBUG("name: %s\n", ctx->f_name); 42491d632c8Sgwr else 42591d632c8Sgwr SMBVDEBUG("null name!\n"); 42691d632c8Sgwr 42791d632c8Sgwr /* 42891d632c8Sgwr * Skip padding until next offset 42991d632c8Sgwr */ 43091d632c8Sgwr if (next > used) { 43191d632c8Sgwr skip = next - used; 43291d632c8Sgwr md_get_mem(mdp, NULL, skip, MB_MSYSTEM); 43391d632c8Sgwr } 43491d632c8Sgwr if (next == 0) 43591d632c8Sgwr ctx->f_flags |= SMBFS_RDD_EOF; 43691d632c8Sgwr 43791d632c8Sgwr /* 43891d632c8Sgwr * Chop off the trailing ":$DATA" 43991d632c8Sgwr * The 6 here is strlen(":$DATA") 44091d632c8Sgwr */ 44191d632c8Sgwr if (ctx->f_nmlen >= 6) { 44291d632c8Sgwr char *p = ctx->f_name + ctx->f_nmlen - 6; 44391d632c8Sgwr if (strncmp(p, ":$DATA", 6) == 0) { 44491d632c8Sgwr *p = '\0'; /* Chop! */ 44591d632c8Sgwr ctx->f_nmlen -= 6; 44691d632c8Sgwr } 44791d632c8Sgwr } 44891d632c8Sgwr 44991d632c8Sgwr /* 45091d632c8Sgwr * The Chop above will typically leave 45191d632c8Sgwr * an empty name in the first slot, 45291d632c8Sgwr * which we will skip here. 45391d632c8Sgwr */ 45491d632c8Sgwr if (ctx->f_nmlen == 0) 45591d632c8Sgwr goto again; 45691d632c8Sgwr 45791d632c8Sgwr /* 45891d632c8Sgwr * If this is a lookup of a specific name, 45991d632c8Sgwr * skip past any non-matching names. 46091d632c8Sgwr */ 46191d632c8Sgwr if (ctx->f_flags & SMBFS_RDD_FINDSINGLE) { 46291d632c8Sgwr if (ctx->f_wclen != ctx->f_nmlen) 46391d632c8Sgwr goto again; 46491d632c8Sgwr if (u8_strcmp(ctx->f_wildcard, ctx->f_name, 46591d632c8Sgwr ctx->f_nmlen, U8_STRCMP_CI_LOWER, 46691d632c8Sgwr U8_UNICODE_LATEST, &error) || error) 46791d632c8Sgwr goto again; 46891d632c8Sgwr } 46991d632c8Sgwr 47091d632c8Sgwr return (0); 47191d632c8Sgwr } 47291d632c8Sgwr 47391d632c8Sgwr /* 47491d632c8Sgwr * Find first/next/close for XATTR directories. 47591d632c8Sgwr * NB: also used by smbfs_smb_lookup 47691d632c8Sgwr */ 47791d632c8Sgwr 47891d632c8Sgwr int 47991d632c8Sgwr smbfs_xa_findclose(struct smbfs_fctx *ctx) 48091d632c8Sgwr { 48191d632c8Sgwr 48291d632c8Sgwr if (ctx->f_name) 48391d632c8Sgwr kmem_free(ctx->f_name, ctx->f_namesz); 48491d632c8Sgwr if (ctx->f_t2) 48591d632c8Sgwr smb_t2_done(ctx->f_t2); 48691d632c8Sgwr 48791d632c8Sgwr return (0); 48891d632c8Sgwr } 489