<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>UbixOS V2: src/sys/vfs/mount.c Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.7 -->
<div class="tabs">
<ul>
<li><a href="main.html"><span>Main Page</span></a></li>
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
<li><a href="classes.html"><span>Data Structures</span></a></li>
<li id="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
<li>
<form action="search.php" method="get">
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td><label> <u>S</u>earch for </label></td>
<td><input type="text" name="query" value="" size="20" accesskey="s"/></td>
</tr>
</table>
</form>
</li>
</ul></div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul></div>
<div class="nav">
<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_366cae809cefebd9796e1be555536f38.html">vfs</a></div>
<h1>mount.c</h1><a href="mount_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002-2004 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment"> permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment"> conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment"> form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment"> disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment"> with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment"> contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment"> without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment"> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment"> THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment"> SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment"> OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment"> HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment"> TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id$</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="mount_8h.html">vfs/mount.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <ubixos/vitals.h></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="kmalloc_8h.html">lib/kmalloc.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <<a class="code" href="lib_2string_8h.html">lib/string.h</a>></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <<a class="code" href="include_2sys_2device_8h.html">sys/device.h</a>></span>
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">/************************************************************************</span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment">Function: mount(int driveId,int partition,int fsType,char *mountPoint,char *perms)</span>
<a name="l00041"></a>00041 <span class="comment"></span>
<a name="l00042"></a>00042 <span class="comment">Description: mount adds a mount point and returns 0 if successful 1 if it fails</span>
<a name="l00043"></a>00043 <span class="comment"></span>
<a name="l00044"></a>00044 <span class="comment">Notes:</span>
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment">************************************************************************/</span>
<a name="l00047"></a><a class="code" href="mount_8c.html#8379310fce9e1a500f602059516e25f0">00047</a> <span class="keywordtype">int</span> <a class="code" href="mount_8h.html#1255ebfdcd5f7048ffe187e836f8eb28">vfs_mount</a>(<span class="keywordtype">int</span> major,<span class="keywordtype">int</span> minor,<span class="keywordtype">int</span> partition,<span class="keywordtype">int</span> <a class="code" href="structfileSystem.html#a1b7987f710ba203dffb15590ff58ce0">vfsType</a>,<span class="keywordtype">char</span> *mountPoint,<span class="keywordtype">char</span> *perms) {
<a name="l00048"></a>00048 <a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a> *mp = 0x0;
<a name="l00049"></a>00049 <span class="keyword">struct </span><a class="code" href="structdevice__node.html">device_node</a> *<a class="code" href="structdevice.html">device</a> = 0x0;
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">/* Allocate Memory For Mount Point */</span>
<a name="l00052"></a>00052 <span class="keywordflow">if</span> ((mp = (<a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a>))) == <a class="code" href="def_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00053"></a>00053 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"vfs_mount: failed to allocate mp\n"</span>);
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="comment">/* Copy Mount Point Into Buffer */</span>
<a name="l00056"></a>00056 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(mp-><a class="code" href="structvfs__mountPoint.html#30136b0c8a7040142fefc3b3d8038eaf">mountPoint</a>,mountPoint);
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="comment">/* Set Pointer To Physical Drive */</span>
<a name="l00059"></a>00059 device = <a class="code" href="include_2sys_2device_8h.html#0002a4ec01ee11597c6751602f3e4c3d">device_find</a>(major,minor);
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">/* Set Up Mp Defaults */</span>
<a name="l00062"></a>00062 mp-><a class="code" href="structvfs__mountPoint.html#5683a99774aaf81116e1765eb2509df5">device</a> = device;
<a name="l00063"></a>00063 mp-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a> = <a class="code" href="include_2vfs_2vfs_8h.html#c6ee0ab6fd2b909f10c6596b5b87a149">vfsFindFS</a>(vfsType);
<a name="l00064"></a>00064 mp-><a class="code" href="structvfs__mountPoint.html#26cf95c23f79647d61dc6396bbeb94a6">partition</a> = partition;
<a name="l00065"></a>00065 mp-><a class="code" href="structvfs__mountPoint.html#9fc7cfceb0706b0d4aa835a6efbb1295">perms</a> = *perms;
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="keywordflow">if</span> (mp-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a> == 0x0) {
<a name="l00068"></a>00068 <span class="comment">/* sysErr(systemErr,"File System Type: %i Not Found\n",fsType); */</span>
<a name="l00069"></a>00069 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"File System Type: %i Not Found\n"</span>,vfsType);
<a name="l00070"></a>00070 <span class="keywordflow">return</span>(0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>);
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072 <span class="comment">/*What is this for? 10/6/2006 */</span>
<a name="l00073"></a>00073 <span class="comment">/*</span>
<a name="l00074"></a>00074 <span class="comment"> if (device != 0x0) {</span>
<a name="l00075"></a>00075 <span class="comment"> mp->diskLabel = (struct ubixDiskLabel *)kmalloc(512);</span>
<a name="l00076"></a>00076 <span class="comment"> mp->device->devInfo->read(mp->device->devInfo->info,mp->diskLabel,1,1);</span>
<a name="l00077"></a>00077 <span class="comment"> kprintf("READING SECTOR");</span>
<a name="l00078"></a>00078 <span class="comment"> }</span>
<a name="l00079"></a>00079 <span class="comment">*/</span>
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="comment">/* Add Mountpoint If It Fails Free And Return */</span>
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (<a class="code" href="mount_8h.html#a4a39579800a77fc0df6e25a0c3dbc58">vfs_addMount</a>(mp) != 0x0) {
<a name="l00083"></a>00083 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(mp);
<a name="l00084"></a>00084 <span class="keywordflow">return</span>(0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="comment">/* Initialize The File System If It Fails Return */</span>
<a name="l00088"></a>00088 <span class="keywordflow">if</span> (mp-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#63cc4eb02c498b7ae04d3cedba288822">vfsInitFS</a>(mp) == 0x0) {
<a name="l00089"></a>00089 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(mp);
<a name="l00090"></a>00090 <span class="keywordflow">return</span>(0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>);
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092 <span class="comment">/* Return */</span>
<a name="l00093"></a>00093 <span class="keywordflow">return</span>(0x0);
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">/************************************************************************</span>
<a name="l00097"></a>00097 <span class="comment"></span>
<a name="l00098"></a>00098 <span class="comment">Function: vfs_addMount(vfs_mountPoint_t *mp)</span>
<a name="l00099"></a>00099 <span class="comment"></span>
<a name="l00100"></a>00100 <span class="comment">Description: This function adds a mount point to the system</span>
<a name="l00101"></a>00101 <span class="comment"></span>
<a name="l00102"></a>00102 <span class="comment">Notes:</span>
<a name="l00103"></a>00103 <span class="comment"></span>
<a name="l00104"></a>00104 <span class="comment">************************************************************************/</span>
<a name="l00105"></a><a class="code" href="mount_8c.html#a4a39579800a77fc0df6e25a0c3dbc58">00105</a> <span class="keywordtype">int</span> <a class="code" href="mount_8h.html#a4a39579800a77fc0df6e25a0c3dbc58">vfs_addMount</a>(<a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a> *mp) {
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="comment">/* If There Are No Existing Mounts Make It The First */</span>
<a name="l00108"></a>00108 <span class="keywordflow">if</span> (<a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints == 0x0) {
<a name="l00109"></a>00109 mp-><a class="code" href="structvfs__mountPoint.html#e283964876a0043b3dd91b5596621439">prev</a> = 0x0;
<a name="l00110"></a>00110 mp-><a class="code" href="structvfs__mountPoint.html#1e30c95f66f6d267c97654c49275ec9b">next</a> = 0x0;
<a name="l00111"></a>00111 <a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints = mp;
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113 <span class="keywordflow">else</span> {
<a name="l00114"></a>00114 mp-><a class="code" href="structvfs__mountPoint.html#1e30c95f66f6d267c97654c49275ec9b">next</a> = <a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints;
<a name="l00115"></a>00115 <a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints->prev = mp;
<a name="l00116"></a>00116 mp-><a class="code" href="structvfs__mountPoint.html#e283964876a0043b3dd91b5596621439">prev</a> = 0x0;
<a name="l00117"></a>00117 <a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints = mp;
<a name="l00118"></a>00118 }
<a name="l00119"></a>00119 <span class="comment">/* Return */</span>
<a name="l00120"></a>00120 <span class="keywordflow">return</span>(0x0);
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">/************************************************************************</span>
<a name="l00124"></a>00124 <span class="comment"></span>
<a name="l00125"></a>00125 <span class="comment">Function: vfs_findMount(char *mountPoint)</span>
<a name="l00126"></a>00126 <span class="comment"></span>
<a name="l00127"></a>00127 <span class="comment">Description: This function finds a particular mount point</span>
<a name="l00128"></a>00128 <span class="comment"></span>
<a name="l00129"></a>00129 <span class="comment">Notes:</span>
<a name="l00130"></a>00130 <span class="comment"></span>
<a name="l00131"></a>00131 <span class="comment">************************************************************************/</span>
<a name="l00132"></a><a class="code" href="mount_8c.html#cccb971dbe164c9a52156a93ad14eaa4">00132</a> <a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a> *<a class="code" href="mount_8h.html#cccb971dbe164c9a52156a93ad14eaa4">vfs_findMount</a>(<span class="keywordtype">char</span> *mountPoint) {
<a name="l00133"></a>00133 <a class="code" href="structvfs__mountPoint.html">vfs_mountPoint_t</a> *tmpMp = 0x0;
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keywordflow">for</span> (tmpMp=<a class="code" href="timer_8S.html#dc95ab102f418b6c76681c5f12dcbaf6">systemVitals</a>->mountPoints;tmpMp;tmpMp=tmpMp-><a class="code" href="structvfs__mountPoint.html#1e30c95f66f6d267c97654c49275ec9b">next</a>) {
<a name="l00136"></a>00136 <span class="keywordflow">if</span> (<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(tmpMp-><a class="code" href="structvfs__mountPoint.html#30136b0c8a7040142fefc3b3d8038eaf">mountPoint</a>,mountPoint) == 0x0) {
<a name="l00137"></a>00137 <span class="keywordflow">return</span>(tmpMp);
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 <span class="comment">/* Return NULL If Mount Point Not Found */</span>
<a name="l00141"></a>00141 <span class="keywordflow">return</span> <a class="code" href="def_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">/***</span>
<a name="l00145"></a>00145 <span class="comment"> END</span>
<a name="l00146"></a>00146 <span class="comment"> ***/</span>
<a name="l00147"></a>00147
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Sun Dec 3 02:38:05 2006 for UbixOS V2 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
</body>
</html>
