| 1 | //␊ |
| 2 | // PartitionInfoElement.mm␊ |
| 3 | // ChameleonPrefPane␊ |
| 4 | //␊ |
| 5 | // Powerful Partition Info class utility␊ |
| 6 | //␊ |
| 7 | // Created by Rekursor on 11-11-12.␊ |
| 8 | //␊ |
| 9 | ␊ |
| 10 | #import "PartitionInfoElement.h"␊ |
| 11 | #import "ShellProcess.h"␊ |
| 12 | ␊ |
| 13 | static NSUInteger sHdRedirTable[MAX_HD];␊ |
| 14 | ␊ |
| 15 | @implementation PartitionInfoElement␊ |
| 16 | ␊ |
| 17 | @synthesize descDict, bsdName, vUUID, vKind, vName, vPath, mediaPath, mediaRemovable, devInternal, devProtocol;␊ |
| 18 | @synthesize vAliasName, hidden;␊ |
| 19 | ␊ |
| 20 | /// Create a list of all bsd partitions␊ |
| 21 | +(NSArray*) createBSDPartitionList␊ |
| 22 | {␊ |
| 23 | ␉NSMutableArray* arr = [[[NSMutableArray alloc] init] autorelease];␊ |
| 24 | ␉␊ |
| 25 | ␉char line[256];␊ |
| 26 | ␉ShellProcess p;␊ |
| 27 | ␉␊ |
| 28 | ␉p.open("ls -1 /dev/disk*");␊ |
| 29 | ␉while( p.get_line(line, sizeof(line)-1))␊ |
| 30 | ␉{␊ |
| 31 | ␉␉size_t l = strlen(line);␊ |
| 32 | ␉␉if (l==0 || strstr(line, "ls:")!=NULL) continue;␊ |
| 33 | ␉␉if (line[l-1]) line[l-1]='\0';␊ |
| 34 | ␉␉const char * p = strstr(line, "disk");␊ |
| 35 | ␉␉NSString* s = [NSString stringWithUTF8String: p] ;␊ |
| 36 | ␉␉[arr addObject: s];␉␊ |
| 37 | ␉␉␊ |
| 38 | ␉}␊ |
| 39 | ␉p.close();␊ |
| 40 | ␉␊ |
| 41 | ␉return arr;␊ |
| 42 | }␊ |
| 43 | ␊ |
| 44 | /// redirection table for disk swapping␊ |
| 45 | +(NSUInteger*) hdRedirTable␊ |
| 46 | {␊ |
| 47 | ␉return sHdRedirTable;␊ |
| 48 | }␊ |
| 49 | ␊ |
| 50 | /// redirection table for disk swapping␊ |
| 51 | /// extract disk number from bsdname spec␊ |
| 52 | -(int) diskNumber␊ |
| 53 | {␊ |
| 54 | ␉int newDiskNum = (diskNum>=0 && diskNum <MAX_HD) ? sHdRedirTable[diskNum] : diskNum;␊ |
| 55 | ␉return newDiskNum;␊ |
| 56 | }␊ |
| 57 | ␊ |
| 58 | /// extract partition number from bsdname spec␊ |
| 59 | -(int) partitionNumber␊ |
| 60 | {␊ |
| 61 | ␉return partNum; // todo extract d num from bsdname␊ |
| 62 | }␊ |
| 63 | ␊ |
| 64 | -(NSString*) hdString␊ |
| 65 | {␊ |
| 66 | ␉return [NSString stringWithFormat:@"hd(%d,%d)", [self diskNumber], [self partitionNumber]];␊ |
| 67 | }␊ |
| 68 | ␊ |
| 69 | -(void) setDiskNumber: (int) d␊ |
| 70 | {␊ |
| 71 | ␉diskNum = d;␊ |
| 72 | }␊ |
| 73 | ␊ |
| 74 | -(void) setPartitionNumber:(int) p␊ |
| 75 | {␊ |
| 76 | ␉partNum = p;␊ |
| 77 | }␊ |
| 78 | /// return true if partition extraction successfully executed, false otherwise␊ |
| 79 | -(bool) isValid␊ |
| 80 | {␊ |
| 81 | ␉␊ |
| 82 | ␉return (␊ |
| 83 | ␉␉␉err==0␊ |
| 84 | ␉␉␉&& [self isBootable] ␊ |
| 85 | ␉␉␉// with chameleon as much as possible␊ |
| 86 | ␉␉␉&& ![[self devProtocol] isEqual:@"Virtual Interface"]␊ |
| 87 | ␉␉␉);␊ |
| 88 | }␊ |
| 89 | ␊ |
| 90 | /// Extract a particular information from the disk partition dictionary from a key, generate a string value output␊ |
| 91 | -(NSString*) stringValueWithKey: (NSString*) key␊ |
| 92 | {␊ |
| 93 | ␉if (err) return @"";␊ |
| 94 | ␉CFTypeRef o = [descDict objectForKey: key];␊ |
| 95 | ␉if (o==nil) return @"";␊ |
| 96 | ␉CFStringRef sref = CFStringCreateWithFormat(NULL, NULL, CFSTR("%@"), o);␊ |
| 97 | ␉NSString* s = [[((NSString*) sref) copy] autorelease];␊ |
| 98 | ␉CFRelease(sref);␊ |
| 99 | ␉return s;␊ |
| 100 | }␊ |
| 101 | ␊ |
| 102 | /// main extraction method create a dictionary containing all needed information from disk arbitration API␊ |
| 103 | - (int) extractInfoWithBSDName: (NSString*) name withinSession:(DASessionRef) session␊ |
| 104 | {␊ |
| 105 | ␉err = 0;␊ |
| 106 | ␉␊ |
| 107 | ␉NSRange rDisk = [name rangeOfString:@"disk"];␊ |
| 108 | ␉NSRange rS = [name rangeOfString:@"s" options:NSBackwardsSearch] ;␊ |
| 109 | ␉␊ |
| 110 | ␉if (name == nil ␊ |
| 111 | ␉␉|| [name length] < 7 ␊ |
| 112 | ␉␉|| rDisk.location == NSNotFound ␊ |
| 113 | ␉␉|| rS.location <5) ␊ |
| 114 | ␉{␊ |
| 115 | ␉␉err = EINVAL;␊ |
| 116 | ␉␉return err;␊ |
| 117 | ␉}␊ |
| 118 | ␉␉␉␉␉␉␉␉␉␉␉ ␊ |
| 119 | ␉// extract disk and partition number␊ |
| 120 | ␉int pos = rDisk.location+rDisk.length;␊ |
| 121 | ␉int pos2 = rS.location+rS.length;␊ |
| 122 | ␉NSString* sDisk = [name substringWithRange:␊ |
| 123 | ␉␉␉␉␉ NSMakeRange(pos, rS.location - pos) ];␊ |
| 124 | ␉NSString* sPart = [name substringFromIndex: pos2 ];␊ |
| 125 | ␉␊ |
| 126 | ␉bool mustRelease = (session == nil) ? true : false;␊ |
| 127 | ␉␊ |
| 128 | ␉if (session == nil)␊ |
| 129 | ␉{␊ |
| 130 | ␉␉session = DASessionCreate(NULL);␊ |
| 131 | ␉}␊ |
| 132 | ␉␊ |
| 133 | ␉if (session == NULL)␉err = EINVAL;␊ |
| 134 | ␉␊ |
| 135 | ␉if (err == 0) {␊ |
| 136 | ␉␉DADiskRef disk = DADiskCreateFromBSDName(NULL, session, [name UTF8String] );␊ |
| 137 | ␉␉if (disk == NULL) err = EINVAL;␊ |
| 138 | else␊ |
| 139 | {␊ |
| 140 | [self cleanup];␊ |
| 141 | CFDictionaryRef␉dr = DADiskCopyDescription(disk);␊ |
| 142 | if (dr!=NULL)␊ |
| 143 | {␊ |
| 144 | descDict = (NSDictionary*) dr;␊ |
| 145 | CFRelease(dr);␊ |
| 146 | }␊ |
| 147 | }␊ |
| 148 | if (disk) CFRelease(disk);␊ |
| 149 | ␉}␊ |
| 150 | ␊ |
| 151 | ␉if (err == 0) {␊ |
| 152 | ␉␉diskNum = [sDisk␉intValue];␊ |
| 153 | ␉␉partNum = [sPart␉intValue];␊ |
| 154 | ␉␉␊ |
| 155 | ␉␉self.vUUID = [self stringValueWithKey: @"DAVolumeUUID"];␊ |
| 156 | ␉␉self.vName = [self stringValueWithKey: @"DAVolumeName"];␊ |
| 157 | ␉␉self.vPath = [self stringValueWithKey: @"DAVolumePath"];␊ |
| 158 | ␉␉if (self.vName == nil || [vName length]==0)␊ |
| 159 | ␉␉␉self.vName = [[self.vPath lastPathComponent ] stringByReplacingOccurrencesOfString:@"%20" withString:@" "];␊ |
| 160 | ␉␉self.vAliasName = self.vName; // by default renamed = original part name ␊ |
| 161 | ␉␉self.vKind = [self stringValueWithKey: @"DAVolumeKind"];␊ |
| 162 | ␉␉self.mediaPath = [self stringValueWithKey: @"DAMediaPath"];␊ |
| 163 | ␉␉self.devProtocol = [self stringValueWithKey: @"DADeviceProtocol"];␊ |
| 164 | ␉␉self.bsdName = [NSString stringWithString:name];␊ |
| 165 | ␉␉␊ |
| 166 | ␉␉self.devInternal = (bool) [[descDict objectForKey: @"DADeviceInternal"] boolValue];␊ |
| 167 | ␉␉self.mediaRemovable = (bool) [[descDict objectForKey: @"DAMediaRemovable"] boolValue];␊ |
| 168 | ␉␉␊ |
| 169 | ␉}␊ |
| 170 | ␉␊ |
| 171 | ␉// Clean up.␊ |
| 172 | ␉␊ |
| 173 | ␉if (session != NULL && mustRelease) CFRelease(session);␊ |
| 174 | ␉␊ |
| 175 | ␉return err;␊ |
| 176 | }␊ |
| 177 | ␊ |
| 178 | +(NSMutableArray*)␉extractInfoWithBSDNames: (NSArray*) bsdNames␊ |
| 179 | {␊ |
| 180 | ␉return [PartitionInfoElement extractInfoWithBSDNames:bsdNames withArray: nil];␊ |
| 181 | }␊ |
| 182 | ␊ |
| 183 | /// main extraction method create a dictionary of PartitionInfoElement objects containing all needed information from disk arbitration API␊ |
| 184 | + (NSMutableArray*) extractInfoWithBSDNames: (NSArray*) names withArray:(NSMutableArray*) arr␊ |
| 185 | {␉␉␊ |
| 186 | ␉NSArray* partArr = [PartitionInfoElement createBSDPartitionList];␊ |
| 187 | ␉if (arr == nil)␊ |
| 188 | ␉␉arr = [[[NSMutableArray alloc ] init] autorelease];␊ |
| 189 | ␉␊ |
| 190 | ␉if (partArr!=nil && [partArr count]>0)␊ |
| 191 | ␉{␊ |
| 192 | ␉␉␉DASessionRef session = DASessionCreate(NULL);␊ |
| 193 | ␉␉␉for (NSString* part in partArr)␊ |
| 194 | ␉␉␉{␊ |
| 195 | ␉␉␉␉PartitionInfoElement* elt = ␊ |
| 196 | ␉␉␉␉[[[PartitionInfoElement alloc] initWithBSDName: part withinSession: session] autorelease];␊ |
| 197 | ␉␉␉␉if (elt!=nil && [[elt vName] length] >0 && [elt isValid] ) ␊ |
| 198 | ␉␉␉␉␉[arr addObject: elt];␊ |
| 199 | ␉␉␉}␊ |
| 200 | ␉␉␉if (session!=nil) CFRelease(session);␊ |
| 201 | ␉}␊ |
| 202 | ␉return arr;␊ |
| 203 | }␊ |
| 204 | ␊ |
| 205 | - (int) extractInfoWithBSDName: (NSString*) name ␊ |
| 206 | {␊ |
| 207 | ␉return [self extractInfoWithBSDName:name withinSession: nil]; ␊ |
| 208 | }␊ |
| 209 | ␊ |
| 210 | -(bool) isBootable␊ |
| 211 | {␊ |
| 212 | ␉bool bootable = false;␊ |
| 213 | ␉NSFileManager* mgr = [NSFileManager defaultManager];␊ |
| 214 | ␉NSString *fmt = @"/Volumes/%@%s";␊ |
| 215 | ␉NSRange r = [vPath rangeOfString:@"file://localhost/Volumes/"];␊ |
| 216 | ␉NSString * vol = [NSString stringWithFormat: @"%@/",vName];␊ |
| 217 | ␉␊ |
| 218 | ␉// ␊ |
| 219 | ␉if (r.location != NSNotFound) {␊ |
| 220 | ␉␉vol = [[vPath substringFromIndex:r.location+r.length] stringByReplacingOccurrencesOfString:@"%20" withString:@" "];␊ |
| 221 | ␉}␊ |
| 222 | ␉␊ |
| 223 | ␉// that Windows is the name of WIN32 bootable disk dir ...␊ |
| 224 | ␉if(␊ |
| 225 | ␉␉[mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "System/Library/Extensions" ]] ||␊ |
| 226 | ␉ [mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "ntldr" ]] ||␊ |
| 227 | ␉␉[mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "bootmgr" ]] ||␊ |
| 228 | ␉␉[mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "boot/bcd" ]] ||␊ |
| 229 | ␉␉[mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "pagefile.sys" ]] ||␊ |
| 230 | ␉␉[mgr fileExistsAtPath: [NSString stringWithFormat: fmt, vol, "hiberfil.sys" ]] ␊ |
| 231 | ␉ )␊ |
| 232 | ␉␉bootable=true;␊ |
| 233 | ␉else if ([vName rangeOfString:@"ext"].location != NSNotFound) // linux ?␊ |
| 234 | ␉␉bootable = true;␊ |
| 235 | ␉return bootable;␊ |
| 236 | }␊ |
| 237 | ␊ |
| 238 | /// Return the partition image index according to its file system␊ |
| 239 | -(int) imageIndexFromFs␊ |
| 240 | {␊ |
| 241 | ␉␊ |
| 242 | ␉if ( [[self vKind] rangeOfString:@"hfs"].location != NSNotFound )␊ |
| 243 | ␉␉return 0; // Mac␊ |
| 244 | ␉if ( [[self vKind] rangeOfString:@"fat"].location != NSNotFound ||␊ |
| 245 | ␉␉ [[self vKind] rangeOfString:@"ntfs"].location != NSNotFound ||␊ |
| 246 | ␉␉ [[self vKind] rangeOfString:@"dos"].location != NSNotFound )␊ |
| 247 | ␉␉return 1; // Windows␊ |
| 248 | ␉if ( [[self vKind] rangeOfString:@"ext"].location != NSNotFound )␊ |
| 249 | ␉␉return 2; // Linux␊ |
| 250 | ␉␊ |
| 251 | ␉return 10; // unknown␊ |
| 252 | }␊ |
| 253 | ␊ |
| 254 | /// Volume label trimming utility function␊ |
| 255 | +(NSString*) removesSpacesFromLabel:(NSString*) label␊ |
| 256 | {␊ |
| 257 | ␉if (label == nil || [label length]==0) return label;␊ |
| 258 | ␉return [label stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];␊ |
| 259 | }␊ |
| 260 | ␊ |
| 261 | /// make the object description available for NSLog() debug purpose␊ |
| 262 | -(NSString*) description␊ |
| 263 | {␊ |
| 264 | ␉NSString* format =␊ |
| 265 | ␉@"(\n"␊ |
| 266 | ␉ " bsdName %@\n deviceProtocol %@\n deviceInternal %i\n"␊ |
| 267 | ␉ " volumeName %@\n volumeKind %@\n volumeUUID %@\n"␊ |
| 268 | ␉ " volumePath %@\n mediaPath %@\n mediaRemovable %i\n"␉␊ |
| 269 | ␉ ")";␊ |
| 270 | ␉NSString* value = [NSString stringWithFormat: format,␊ |
| 271 | ␉␉␉␉␉ self.bsdName, self.devProtocol, self.devInternal, ␊ |
| 272 | ␉␉␉␉␉ self.vName, self.vKind, self.vUUID, ␊ |
| 273 | ␉␉␉␉␉ self.vPath, self.mediaPath, self.mediaRemovable ];␊ |
| 274 | ␉return value;␊ |
| 275 | }␊ |
| 276 | ␊ |
| 277 | ␊ |
| 278 | /// initialize a partition element with DA partition info␊ |
| 279 | -(id) initWithBSDName:(NSString*) name ␊ |
| 280 | {␊ |
| 281 | ␉self = [super init];␊ |
| 282 | ␉diskNum = partNum = -1;␊ |
| 283 | ␉err = [self extractInfoWithBSDName: name withinSession: nil];␊ |
| 284 | ␉return self;␊ |
| 285 | }␊ |
| 286 | ␊ |
| 287 | /// initialize a partition element with DA partition info and an optional opened session␊ |
| 288 | -(id) initWithBSDName:(NSString*) name withinSession:(DASessionRef) session␊ |
| 289 | {␊ |
| 290 | ␉self = [super init];␊ |
| 291 | ␉diskNum = partNum = -1;␊ |
| 292 | ␉err = [self extractInfoWithBSDName: name withinSession: session];␊ |
| 293 | ␉␊ |
| 294 | ␉return self;␊ |
| 295 | }␊ |
| 296 | ␊ |
| 297 | -(void) cleanup␊ |
| 298 | {␊ |
| 299 | ␊ |
| 300 | ␉if (descDict != nil) CFRelease(descDict);␊ |
| 301 | ␉if (bsdName != nil) [bsdName release];␊ |
| 302 | ␉if (vUUID != nil) [vUUID release];␊ |
| 303 | ␉if (vKind != nil) [vKind release];␊ |
| 304 | ␉if (vName != nil) [vName release];␊ |
| 305 | ␉if (mediaPath != nil) [mediaPath release];␊ |
| 306 | ␉if (devProtocol != nil) [devProtocol release];␊ |
| 307 | ␉if (vAliasName != nil) [vAliasName release];␊ |
| 308 | ␉bsdName = vUUID = vKind = vName = mediaPath = devProtocol = vAliasName = nil;␊ |
| 309 | ␉descDict = nil;␊ |
| 310 | }␊ |
| 311 | ␊ |
| 312 | /// release created objects␊ |
| 313 | -(void) dealloc␊ |
| 314 | {␊ |
| 315 | ␉[self cleanup];␊ |
| 316 | ␉[super dealloc];␊ |
| 317 | }␊ |
| 318 | ␊ |
| 319 | @end␊ |
| 320 | |
