1 /* 2 * Copyright (c) 2000-2001, Boris Popov 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Boris Popov. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: smbfs_subr.c,v 1.18 2005/02/02 00:22:23 lindak Exp $ 33 */ 34 35 /* 36 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 37 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 38 * Use is subject to license terms. 39 */ 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/time.h> 44 #include <sys/vnode.h> 45 #include <sys/sunddi.h> 46 47 #include <netsmb/smb_osdep.h> 48 49 #include <netsmb/smb.h> 50 #include <netsmb/smb_conn.h> 51 #include <netsmb/smb_subr.h> 52 #include <netsmb/smb_rq.h> 53 54 #include <smbfs/smbfs.h> 55 #include <smbfs/smbfs_node.h> 56 #include <smbfs/smbfs_subr.h> 57 58 /* 59 * In the Darwin code, this function used to compute the full path 60 * by following the chain of n_parent pointers back to the root. 61 * In the Solaris port we found the n_parent pointers inconvenient 62 * because they hold parent nodes busy. We now keep the full path 63 * in every node, so this function need only marshall the directory 64 * path, and (if provided) the separator and last component name. 65 * 66 * Note that this logic must match that in smbfs_getino 67 */ 68 int 69 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp, 70 const char *name, int nmlen, u_int8_t sep) 71 { 72 int caseopt = SMB_CS_NONE; 73 int unicode = (SMB_UNICODE_STRINGS(vcp)) ? 1 : 0; 74 int error; 75 76 if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0) 77 caseopt |= SMB_CS_UPPER; 78 79 if (unicode) { 80 error = mb_put_padbyte(mbp); 81 if (error) 82 return (error); 83 } 84 85 error = smb_put_dmem(mbp, vcp, 86 dnp->n_rpath, dnp->n_rplen, 87 caseopt, NULL); 88 if (name) { 89 /* 90 * Special case at share root: 91 * Don't put another slash. 92 */ 93 if (dnp->n_rplen <= 1 && sep == '\\') 94 sep = 0; 95 /* 96 * More special cases, now for XATTR: 97 * Our "faked up" XATTR directories use a 98 * full path name ending with ":" so as to 99 * avoid conflicts with any real paths. 100 * (It is not a valid CIFS path name.) 101 * Therefore, when we're composing a full 102 * path name from an XATTR directory, we 103 * need to _ommit_ the ":" separator and 104 * instead copy the one from the "fake" 105 * parent node's path name. 106 */ 107 if (dnp->n_flag & N_XATTR) 108 sep = 0; 109 110 if (sep) { 111 /* Put the separator */ 112 if (unicode) 113 error = mb_put_uint16le(mbp, sep); 114 else 115 error = mb_put_uint8(mbp, sep); 116 if (error) 117 return (error); 118 } 119 /* Put the name */ 120 error = smb_put_dmem(mbp, vcp, 121 name, nmlen, caseopt, NULL); 122 if (error) 123 return (error); 124 } 125 /* Put NULL termination. */ 126 if (unicode) 127 error = mb_put_uint16le(mbp, 0); 128 else 129 error = mb_put_uint8(mbp, 0); 130 131 return (error); 132 } 133 134 /* 135 * Convert a Unicode directory entry to UTF-8 136 */ 137 void 138 smbfs_fname_tolocal(struct smbfs_fctx *ctx) 139 { 140 uchar_t tmpbuf[SMB_MAXFNAMELEN+1]; 141 struct smb_vc *vcp = SSTOVC(ctx->f_ssp); 142 uchar_t *dst; 143 const ushort_t *src; 144 size_t inlen, outlen; 145 int flags; 146 147 if (ctx->f_nmlen == 0) 148 return; 149 150 if (!SMB_UNICODE_STRINGS(vcp)) 151 return; 152 153 if (ctx->f_namesz < sizeof (tmpbuf)) { 154 ASSERT(0); 155 goto errout; 156 } 157 158 /* 159 * In-place conversions are not supported, 160 * so convert into tmpbuf and copy. 161 */ 162 dst = tmpbuf; 163 outlen = SMB_MAXFNAMELEN; 164 /*LINTED*/ 165 src = (const ushort_t *)ctx->f_name; 166 inlen = ctx->f_nmlen / 2; /* number of UCS-2 characters */ 167 flags = UCONV_IN_LITTLE_ENDIAN; 168 169 if (uconv_u16tou8(src, &inlen, dst, &outlen, flags) != 0) 170 goto errout; 171 172 ASSERT(outlen < sizeof (tmpbuf)); 173 tmpbuf[outlen] = '\0'; 174 bcopy(tmpbuf, ctx->f_name, outlen + 1); 175 ctx->f_nmlen = (int)outlen; 176 return; 177 178 errout: 179 /* 180 * Conversion failed, but our caller does not 181 * deal with errors here, so just put a "?". 182 * Don't expect to ever see this. 183 */ 184 (void) strlcpy(ctx->f_name, "?", ctx->f_namesz); 185 } 186