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 2009 Sun Microsystems, Inc. All rights reserved. 37 * Use is subject to license terms. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/time.h> 43 #include <sys/vnode.h> 44 #include <sys/sunddi.h> 45 46 #include <netsmb/smb_osdep.h> 47 48 #include <netsmb/smb.h> 49 #include <netsmb/smb_conn.h> 50 #include <netsmb/smb_subr.h> 51 #include <netsmb/smb_rq.h> 52 53 #include <smbfs/smbfs.h> 54 #include <smbfs/smbfs_node.h> 55 #include <smbfs/smbfs_subr.h> 56 57 /* 58 * In the Darwin code, this function used to compute the full path 59 * by following the chain of n_parent pointers back to the root. 60 * In the Solaris port we found the n_parent pointers inconvenient 61 * because they hold parent nodes busy. We now keep the full path 62 * in every node, so this function need only marshall the directory 63 * path, and (if provided) the separator and last component name. 64 * 65 * Note that this logic must match that in smbfs_getino 66 */ 67 int 68 smbfs_fullpath(struct mbchain *mbp, struct smb_vc *vcp, struct smbnode *dnp, 69 const char *name, int *lenp, u_int8_t sep) 70 { 71 int caseopt = SMB_CS_NONE; 72 int error, len = 0; 73 int unicode = (SMB_UNICODE_STRINGS(vcp)) ? 1 : 0; 74 75 if (SMB_DIALECT(vcp) < SMB_DIALECT_LANMAN1_0) 76 caseopt |= SMB_CS_UPPER; 77 78 if (lenp) { 79 len = *lenp; 80 *lenp = 0; 81 } 82 if (unicode) { 83 error = mb_put_padbyte(mbp); 84 if (error) 85 return (error); 86 } 87 88 error = smb_put_dmem(mbp, vcp, 89 dnp->n_rpath, dnp->n_rplen, 90 caseopt, lenp); 91 if (name) { 92 /* 93 * Special case at share root: 94 * Don't put another slash. 95 */ 96 if (dnp->n_rplen <= 1 && sep == '\\') 97 sep = 0; 98 /* 99 * More special cases, now for XATTR: 100 * Our "faked up" XATTR directories use a 101 * full path name ending with ":" so as to 102 * avoid conflicts with any real paths. 103 * (It is not a valid CIFS path name.) 104 * Therefore, when we're composing a full 105 * path name from an XATTR directory, we 106 * need to _ommit_ the ":" separator and 107 * instead copy the one from the "fake" 108 * parent node's path name. 109 */ 110 if (dnp->n_flag & N_XATTR) 111 sep = 0; 112 113 if (sep) { 114 /* Put the separator */ 115 if (unicode) 116 error = mb_put_uint16le(mbp, sep); 117 else 118 error = mb_put_uint8(mbp, sep); 119 if (!error && lenp) 120 *lenp += (unicode + 1); 121 if (error) 122 return (error); 123 } 124 /* Put the name */ 125 error = smb_put_dmem(mbp, vcp, 126 name, len, caseopt, lenp); 127 if (error) 128 return (error); 129 } 130 /* Put NULL termination. */ 131 if (unicode) 132 error = mb_put_uint16le(mbp, 0); 133 else 134 error = mb_put_uint8(mbp, 0); 135 if (!error && lenp) 136 *lenp += (unicode + 1); 137 138 return (error); 139 } 140 141 /* 142 * Convert a Unicode directory entry to UTF-8 143 */ 144 void 145 smbfs_fname_tolocal(struct smbfs_fctx *ctx) 146 { 147 uchar_t tmpbuf[SMB_MAXFNAMELEN+1]; 148 struct smb_vc *vcp = SSTOVC(ctx->f_ssp); 149 uchar_t *dst; 150 const ushort_t *src; 151 size_t inlen, outlen; 152 int flags; 153 154 if (ctx->f_nmlen == 0) 155 return; 156 157 if (!SMB_UNICODE_STRINGS(vcp)) 158 return; 159 160 if (ctx->f_namesz < sizeof (tmpbuf)) { 161 ASSERT(0); 162 goto errout; 163 } 164 165 /* 166 * In-place conversions are not supported, 167 * so convert into tmpbuf and copy. 168 */ 169 dst = tmpbuf; 170 outlen = SMB_MAXFNAMELEN; 171 /*LINTED*/ 172 src = (const ushort_t *)ctx->f_name; 173 inlen = ctx->f_nmlen / 2; /* number of UCS-2 characters */ 174 flags = UCONV_IN_LITTLE_ENDIAN; 175 176 if (uconv_u16tou8(src, &inlen, dst, &outlen, flags) != 0) 177 goto errout; 178 179 ASSERT(outlen < sizeof (tmpbuf)); 180 tmpbuf[outlen] = '\0'; 181 bcopy(tmpbuf, ctx->f_name, outlen + 1); 182 ctx->f_nmlen = (int)outlen; 183 return; 184 185 errout: 186 /* 187 * Conversion failed, but our caller does not 188 * deal with errors here, so just put a "?". 189 * Don't expect to ever see this. 190 */ 191 (void) strlcpy(ctx->f_name, "?", ctx->f_namesz); 192 } 193