source: src-qt4/pc-mounttray/devCheck.cpp @ e020f6a

9.2-releasereleng/10.0releng/10.0.1
Last change on this file since e020f6a was e020f6a, checked in by Ken Moore <ken@…>, 5 months ago

Fix compilation of pc-mounttray on 10.x

  • Property mode set to 100644
File size: 8.8 KB
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1#include <pcbsd-utils.h>
2#include "devCheck.h"
3
4
5DevCheck::DevCheck(){
6  //Initialize the lists of valid device types
7  validDevs << "da" << "ad" << "mmcsd" << "cd" << "acd" << "md" << "da";
8  validDevTypes << "USB" << "SATA" << "SD" << "CD9660" << "CD9660" << "ISO" << "SCSI";
9  for(int i=0; i<validDevs.length(); i++){
10    devFilter << validDevs[i]+"*";
11  }
12  //Initialize lists of filesystems and detection strings
13  fsDetection.clear();
14  fsMatch.clear();
15  fsDetection << "FAT" << "NTFS" << "EXT" << "ISO 9660" << "Unix Fast File system" << "Reiser" << "XFS"; //string to match for a particular filesystem
16  fsMatch << "FAT" << "NTFS" << "EXT" << "CD9660" << "UFS" << "REISERFS" << "XFS"; //internal labels for the filesystems
17  fsFilter << "fat" << "ntfs" << "ext" << "cdrom" << "ufs" << "reiser" << "xfs"; //label categories in /dev/
18  //Initialize the device directory
19  devDir = QDir(DEVICEDIR);
20}
21
22DevCheck::~DevCheck(){
23}
24
25/*
26  PUBLIC FUNCTIONS
27*/
28
29bool DevCheck::isValid(QString node){
30  bool ok = FALSE;
31  for(int i=0; i<validDevs.length(); i++){
32    if(node.startsWith(validDevs[i]) && node!="mdctl"){ 
33        ok = TRUE; 
34        break; 
35    }
36  }
37  return ok;
38}
39
40QStringList DevCheck::devChildren(QString node){
41  devDir.cd(DEVICEDIR);
42  QStringList subdevs;
43  if(node.isEmpty()){
44    subdevs = devDir.entryList(devFilter, QDir::NoDotAndDotDot | QDir::NoSymLinks | QDir::System, QDir::NoSort);
45  }else{
46    subdevs = devDir.entryList(QStringList(node+"*"), QDir::NoDotAndDotDot | QDir::NoSymLinks | QDir::System, QDir::NoSort);
47  }
48  //Clean up the list of children
49  for(int i=0; i<subdevs.length(); i++){
50    if( (subdevs[i] == node) || subdevs[i].isEmpty() ){
51      subdevs.removeAt(i);
52      i--;
53    }
54  }
55  return subdevs;
56}
57
58QString DevCheck::devLabel(QString node, QString filesystem){
59  QString dlabel;
60  QStringList glout = pcbsd::Utils::runShellCommand("glabel list");
61  int index = glout.indexOf("Geom name: "+node);
62  while(index != -1){
63    for(int i=index; i<glout.length(); i++){ 
64      if(glout[i].contains("Name: ")){ index = i; break;} //should only be 1 or 2 lines to find this
65    }
66    if(index == -1){ break; } //quick check to make sure we don't error out
67    QString path = glout[index].section("Name:",1,10,QString::SectionSkipEmpty).simplified(); 
68    int fschk = fsMatch.indexOf(filesystem);
69    if(fschk != -1){
70      if(fsFilter[fschk] == path.section("/",0,0).simplified() ){
71        //good label
72        dlabel = path.section("/",-1).simplified();
73        break;
74      }
75    }
76    index = glout.indexOf("Geom name: "+node, index); //move to the next index if there is one
77  }
78  return dlabel;
79}
80
81bool DevCheck::devInfo(QString dev, QString* type, QString* label, QString* filesystem, QString* maxsize){
82  //OUTPUT: bool isGoodDevice
83  //INPUTS/OUTPUTS: type, label, filesystem, maxsize
84  //INPUT: dev = device node (da0, not /dev/da0)
85       
86  //Clear the output variables
87  type->clear(); label->clear(); filesystem->clear(); maxsize->clear();
88  //make sure to have both the full path and just node
89  QString node;
90  QString fullDev;
91  if(dev.startsWith(DEVICEDIR)){ fullDev = dev; node = dev.section("/",-1); }
92  else{ node = dev; fullDev = DEVICEDIR + dev; }
93  //Do not allow sym-links
94  if(!QFile::symLinkTarget(fullDev).isEmpty()){ return FALSE; }
95 
96  //Double check for valid device types (just in case)
97  QString detType;
98  for(int i=0; i<validDevs.length(); i++){
99    if(node.startsWith(validDevs[i]) && node != "mdctl"){ 
100        detType = validDevTypes[i]; 
101        break; 
102    }
103  }
104  QString camctl;
105  if(detType == "USB" && QFile::exists(fullDev)){
106    //make sure that it is not a SCSI device
107    camctl = pcbsd::Utils::runShellCommand( QString("camcontrol inquiry ")+node ).join(" ");
108    if(camctl.contains(" Fixed Direct Access SCSI")){ detType = "SCSI"; } //USB devices do not have any output
109    if(camctl.contains("camcontrol")){ camctl.clear(); } //error or invalid device type
110  }
111  //Make sure we quit before running commands on any invalid device nodes
112  if(detType.isEmpty() || !QFile::exists(fullDev) ){return FALSE;}
113  else{type->append(detType);}
114  bool isCD=FALSE;
115  if(detType == "CD9660" || detType == "ISO"){ isCD=TRUE; }
116 
117  //Read the Device Info using "file -s <device>"
118  QString cmd = "file -s "+fullDev;
119  QString output = pcbsd::Utils::runShellCommand(cmd).join(" ");
120  //if(isCD){ qDebug() << "File -s output:" << output; }
121 
122  // ** Get the max storage size **
123  int kb = 0;
124  bool hasPartitions = FALSE; 
125  bool isMounted = FALSE;
126  if( !isCD ){
127    QStringList tmp = output.split(",");
128    if( !tmp.filter("partition ").isEmpty() ){
129      //Check for actual sub-devices (*s[#][a/b/c/....])
130      if( devChildren(node).length() > 0 ){ hasPartitions = TRUE; }
131    }
132    if( !tmp.filter("last mounted on /").isEmpty() && (detType == "SATA")){
133      isMounted = TRUE;
134    }
135    //Now try to get the size of the disk
136    if( !tmp.filter("number of data blocks").isEmpty() ){
137      tmp = tmp.filter("number of data blocks");
138      kb = tmp[0].remove("number of data blocks").simplified().toInt();
139    }else if( !tmp.filter("number of blocks").isEmpty() ){
140      tmp = tmp.filter("number of blocks");
141      kb = tmp[0].remove("number of blocks").simplified().toInt();
142    }else if( !tmp.filter("hidden sectors").isEmpty()){
143      tmp = tmp.filter("hidden sectors");
144      kb = tmp[0].remove("hidden sectors").simplified().toInt();
145    }else if( !tmp.filter("sectors").isEmpty()){
146      tmp = tmp.filter("sectors");
147      //qDebug() << "Det Sectors line:"<<tmp;
148      int num=0;
149      for(int i=0; i<tmp.length(); i++){
150        int n = tmp[i].remove("sectors").section("(",0,0).simplified().toInt();
151        if(n > num){ num = n; }
152      }
153      kb = num;
154    }else{ kb = -1; }
155  } //end non-CD size and isMounted detection
156  bool oksize = (kb > 0);
157  //First try to get the device label using the "file -s" output
158  QString dlabel;
159  if(isCD){
160    if( !output.contains("ERROR:") ){
161      dlabel = output.section("'",-2).remove("'").simplified();
162      if(dlabel.contains("(")){ dlabel = dlabel.left(dlabel.indexOf("(")+1).trimmed();}
163    }
164  }else{
165   dlabel = output.section("label: \"",1,1).section("\"",0,0).simplified(); //device name
166  }
167  // - trim the label out of the output line for filesystem type detection
168  QString devFSsec, devFSsec2;
169  if(!isCD){
170    devFSsec = output.section("label:",0,0);
171    devFSsec2 = output.section("label:",1,3).section(",",1,1,QString::SectionSkipEmpty);
172  }else{
173    devFSsec = output.simplified();       
174  }
175  // ** Find the filesystem type for the device **
176  QString filesys;
177  for(int i=0; i<fsDetection.length(); i++){
178    if(devFSsec.contains(fsDetection[i]) || devFSsec2.contains(fsDetection[i]) ){
179      filesys = fsMatch[i]; 
180    }
181  }
182  //If the filesystem could not be detected or is not supported
183  bool hasFS = TRUE;
184  if(filesys.isEmpty()){ filesys = "UNKNOWN"; hasFS=FALSE; }
185 
186  //Now get the device label (if there is one) using glabel
187  bool hasLabel = FALSE;
188  QString glabel;
189  if(!isCD){ glabel = devLabel(node, filesys); }
190  //Check to see if we have a label, otherwise assign one
191  if( !glabel.isEmpty() ){ dlabel = glabel; hasLabel = TRUE; } //glabel
192  else if(!dlabel.isEmpty()){ hasLabel = TRUE; } //file -s label
193  else if( !camctl.isEmpty() ){ 
194    //not necessarily a "detected" label, but just an alternate fallback name
195    dlabel = camctl.section(">",0,0).section("<",-1).section(" ",0,0).simplified();
196  }else{
197    //Assign a device label
198    if(isCD){
199      if(detType == "ISO"){
200        dlabel = "ISO_File";
201      }else{
202        dlabel = "Optical_Disk";
203      }
204    }else{
205      dlabel = detType+"-Device"; //this is not a "detected" label
206    }
207  }
208  //make sure that a device label does not contain "(" or ")"
209  if(dlabel.contains("(")){ dlabel = dlabel.remove("(").simplified(); }
210  if(dlabel.contains(")")){ dlabel = dlabel.remove(")").simplified(); }
211  dlabel = dlabel.simplified();
212  //Now perform the final checks to see if it is a good device
213  bool good = FALSE;
214  if( isMounted ){}//Always ignore this device (local FreeBSD installation that is being used)
215  else if( hasPartitions ){} //Ignore devices that have partitions accessible as seperate devices
216  else if( hasFS && isCD ){ good = TRUE; } //CD/DVD data disks don't have as much info
217  //Allow devices that match 2 of the 3 criteria
218  else if( hasFS && oksize ){ good = TRUE; } //This will catch most good devices
219  else if( hasLabel && oksize ){ good = TRUE; } //allow unknown filesystems if there is a good size reading
220  else if( hasFS && hasLabel ){ good = TRUE; } // allow device if it has a known label and filesystem
221 
222  //Now setup the outputs as appropriate
223  maxsize->append( QString::number(kb) );
224  label->append(dlabel);
225  filesystem->append(filesys);
226 
227  if(!good){
228    qDebug() << "Invalid Device:" << node << detType << dlabel << filesys << kb; 
229    if(DEBUG_MODE){qDebug() << " -Detected Flags:" << isMounted << hasPartitions << hasLabel << hasFS << oksize;} 
230  }
231  return good;
232}
233
234/*
235  PRIVATE FUNCTIONS
236*/
237
238
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