1 /* |
|
2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
|
3 * All rights reserved. |
|
4 * This component and the accompanying materials are made available |
|
5 * under the terms of "Eclipse Public License v1.0" |
|
6 * which accompanies this distribution, and is available |
|
7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
8 * |
|
9 * Initial Contributors: |
|
10 * Nokia Corporation - initial contribution. |
|
11 * |
|
12 * Contributors: |
|
13 * |
|
14 * Description: Mounts during boot remote drives configured in CenRep |
|
15 * |
|
16 */ |
|
17 |
|
18 |
|
19 #include <f32file.h> // link against efsrv.lib |
|
20 #include <centralrepository.h> // link against centralrepository.lib |
|
21 #include <f32fsys.h> |
|
22 |
|
23 // for the file server client side API |
|
24 _LIT(KRemoteFSName, "RemoteFS"); |
|
25 _LIT(KRemoteFs, "eremotefs"); |
|
26 |
|
27 |
|
28 // for the central repository API |
|
29 enum TMountEntryItemIndex |
|
30 { |
|
31 EMountEntryItemIndex, |
|
32 EMountEntryItemName, |
|
33 EMountEntryItemDrive, |
|
34 EMountEntryItemUri, |
|
35 EMountEntryItemUserName, |
|
36 EMountEntryItemPassword, |
|
37 EMountEntryItemIap, |
|
38 EMountEntryItemInactivityTimeout, |
|
39 EMountEntryItemReserved, |
|
40 EMountEntryItemCount |
|
41 }; |
|
42 const TUid KCRUidRsfwCtrl = { 0x101F9775 }; // RSFW cenrep table id |
|
43 const TUint KColumnName = EMountEntryItemName; |
|
44 const TUint KColumnMask = 0x000000ff; |
|
45 const TUint KRowMask = 0xffffff00; |
|
46 const TInt KMaxFileSystemName = 256; |
|
47 const TInt KMaxDriveLetterLength = 5; |
|
48 const TInt KMaxFriendlyNameLength = 20; |
|
49 |
|
50 |
|
51 // isRsfwFileSystem |
|
52 // |
|
53 // Checks whether certain drive has rsfw file system mounted on it |
|
54 // |
|
55 // |
|
56 LOCAL_C TBool isRsfwFileSystemL(TInt aDrive, |
|
57 TDriveList aDriveList, |
|
58 RFs aFsSession) |
|
59 { |
|
60 TBool rsfwFileSystem = EFalse; |
|
61 // check first KDriveAttRemote bit as if that is missing it is a quick way |
|
62 // to conclude that this is not a rsfw mount |
|
63 if (aDriveList[aDrive] & KDriveAttRemote) |
|
64 { |
|
65 TInt err; |
|
66 HBufC* filesystemName = HBufC::NewL(KMaxFileSystemName); |
|
67 TPtr itemPtr = filesystemName->Des(); |
|
68 err = aFsSession.FileSystemName(itemPtr, aDrive); |
|
69 if (!err && (itemPtr.Compare(KRemoteFSName) == 0)) |
|
70 { |
|
71 rsfwFileSystem = ETrue; |
|
72 } |
|
73 delete filesystemName; |
|
74 } |
|
75 return rsfwFileSystem; |
|
76 } |
|
77 |
|
78 |
|
79 |
|
80 // DoMountL |
|
81 // |
|
82 // Do either simple mount or replace (our) existing mount |
|
83 // by doing dismount and mount |
|
84 // |
|
85 // |
|
86 LOCAL_C TInt DoMount(TInt aDrive, RFs aFsSession, TBool aReplaceExisting) |
|
87 |
|
88 { |
|
89 TInt err; |
|
90 if (aReplaceExisting) |
|
91 { |
|
92 // ignore dismount error code |
|
93 aFsSession.DismountFileSystem(KRemoteFSName, aDrive); |
|
94 err = aFsSession.MountFileSystem(KRemoteFSName, aDrive); |
|
95 } |
|
96 else |
|
97 { |
|
98 err = aFsSession.MountFileSystem(KRemoteFSName, aDrive); |
|
99 } |
|
100 return err; |
|
101 } |
|
102 |
|
103 |
|
104 // ExecuteFileServerMountL |
|
105 // |
|
106 // Attempts to mount our file system to the file server |
|
107 // |
|
108 // |
|
109 LOCAL_C TInt ExecuteFileServerMountL(TInt aDrive, |
|
110 TDriveList aDriveList, |
|
111 RFs aFsSession) |
|
112 { |
|
113 TInt err; |
|
114 if (aDriveList[aDrive]) |
|
115 { |
|
116 if (isRsfwFileSystemL(aDrive, aDriveList, aFsSession)) |
|
117 { |
|
118 err = DoMount(aDrive, aFsSession, ETrue); |
|
119 } |
|
120 else |
|
121 { |
|
122 // the drive we attempt to mount contains some other file system |
|
123 return KErrInUse; |
|
124 } |
|
125 } |
|
126 else |
|
127 { |
|
128 // the drive we attempt to mount does not contain an existing mount |
|
129 err = DoMount(aDrive, aFsSession, EFalse); |
|
130 } |
|
131 return err; |
|
132 } |
|
133 |
|
134 |
|
135 // SetFriendlyNameL |
|
136 // |
|
137 // Sets the friendly name of the remote drive to |
|
138 // mounted fs drivename and volumename fields |
|
139 // (to the volume name field first 11 chars) |
|
140 // |
|
141 // This function assumes that we are allowed to manipulate |
|
142 // drive aDrive, in practise that ExecuteFileServerMount() |
|
143 // has been called succesfully |
|
144 // |
|
145 LOCAL_C TInt SetFriendlyName(TInt aDrive, |
|
146 TDesC& aFriendlyName, |
|
147 RFs aFsSession) |
|
148 { |
|
149 TInt err; |
|
150 err = aFsSession.SetDriveName(aDrive, aFriendlyName); |
|
151 if (!err) |
|
152 { |
|
153 TPtrC volumeNamePtr = aFriendlyName.Left(KMaxVolumeNameLength); |
|
154 err = aFsSession.SetVolumeLabel(volumeNamePtr, aDrive); |
|
155 } |
|
156 return err; |
|
157 } |
|
158 |
|
159 // ---------------------------------------------------------------------------- |
|
160 // SyncConfiguredRemoteDrivesL |
|
161 // adds RSFW File Server plug-in |
|
162 // and synchronizes Central Repository's view of configured remote drives |
|
163 // with File Server's view (mounts the remote drives configured in CR and |
|
164 // unmounts those remote drives that are not anymore configured) |
|
165 // ---------------------------------------------------------------------------- |
|
166 // |
|
167 LOCAL_C void SyncConfiguredRemoteDrivesL() |
|
168 { |
|
169 TInt err = 0; |
|
170 TInt row = 0; |
|
171 TInt driveNumber = 0; |
|
172 RFs fs; |
|
173 TChar paramLetter(90); |
|
174 TBool paramSet = EFalse; |
|
175 |
|
176 User::LeaveIfError(fs.Connect()); |
|
177 CleanupClosePushL(fs); |
|
178 |
|
179 // it is possible to manipulate only one drive letter, and give that as an argument |
|
180 TInt clinelength = User::CommandLineLength(); |
|
181 if (clinelength > 0) |
|
182 { |
|
183 HBufC* cl = HBufC::NewL(clinelength); |
|
184 TPtr linePtr = cl->Des(); |
|
185 User::CommandLine(linePtr); |
|
186 TLex lex(linePtr); |
|
187 paramLetter = lex.Get(); |
|
188 paramSet = ETrue; |
|
189 delete cl; |
|
190 } |
|
191 |
|
192 // add our file system plugin to the file server |
|
193 err = fs.AddFileSystem(KRemoteFs); |
|
194 if ((err != KErrNone) && (err != KErrAlreadyExists)) |
|
195 { |
|
196 User::Leave(err); |
|
197 } |
|
198 |
|
199 // Get a list of drives in the File Server |
|
200 TDriveList drives; |
|
201 User::LeaveIfError(fs.DriveList(drives, KDriveAttAll)); |
|
202 // (drives[i] & KDriveAttRemote) now tells whether i:th drive is remote |
|
203 |
|
204 // Get a list of remote drives in the central repository table |
|
205 |
|
206 // connect |
|
207 CRepository* cenrep; |
|
208 cenrep = CRepository::NewL(KCRUidRsfwCtrl); |
|
209 CleanupStack::PushL(cenrep); |
|
210 |
|
211 // find all entries by name |
|
212 RArray<TUint32> nameIds; |
|
213 CleanupClosePushL(nameIds); |
|
214 err = cenrep->FindL(KColumnName, KColumnMask, nameIds); |
|
215 if (!err) |
|
216 { |
|
217 // for each remote drive entry, represented by a record in central repository, do the following: |
|
218 // 1) get drive letter from central repository |
|
219 // 2) based on drive letter acquire corresponding drive number from the File Server |
|
220 // 3) check whether in the File Server there is already mounted a drive with given number |
|
221 // 3.1) if there is NOT, then mount the drive |
|
222 // 3.2) if there is and it appears to be remote, then do re-mounting |
|
223 // 3.3) if there is and it appears NOT to be remote, then this means error |
|
224 // 4) still for the same record from central repository, get the name of the drive |
|
225 // 5) use this name as the volume label in the File Server |
|
226 for (row = 0; row < nameIds.Count(); row++) |
|
227 { |
|
228 TUint rowId = (nameIds[row] & KRowMask); |
|
229 // don't touch zero row as it DOES NOT contain info about mounted drives |
|
230 if (rowId > 0) |
|
231 { |
|
232 TInt i; |
|
233 // mount it to the file server |
|
234 |
|
235 // get drive number |
|
236 TBuf<KMaxDriveLetterLength> driveLetter; |
|
237 i = EMountEntryItemDrive; |
|
238 User::LeaveIfError(cenrep->Get(rowId | i, driveLetter)); |
|
239 |
|
240 // driveNumber needed in any case, so that we can mark this as existing drive |
|
241 if (driveLetter.Length() > 0) |
|
242 { |
|
243 User::LeaveIfError(fs.CharToDrive((driveLetter)[0], driveNumber)); |
|
244 } |
|
245 else |
|
246 { |
|
247 User::Leave(KErrBadName); |
|
248 } |
|
249 |
|
250 // proceed this drive if we didn't get any drive |
|
251 // letter as a parameter or we got this one |
|
252 if ((!paramSet) || (paramLetter == driveLetter[0])) |
|
253 { |
|
254 // get friendly name |
|
255 TBuf<KMaxFriendlyNameLength> friendlyName; |
|
256 i = EMountEntryItemName; |
|
257 User::LeaveIfError(cenrep->Get(rowId | i, friendlyName)); |
|
258 |
|
259 if (friendlyName.Length() > 0) |
|
260 { |
|
261 User::LeaveIfError(ExecuteFileServerMountL(driveNumber, drives, fs)); |
|
262 User::LeaveIfError(SetFriendlyName(driveNumber, friendlyName,fs)); |
|
263 } |
|
264 |
|
265 else |
|
266 { |
|
267 User::Leave(KErrBadName); |
|
268 } |
|
269 } |
|
270 |
|
271 // do not unmount this drive as it is still in the CenRep table |
|
272 // after this loop non-zero drives are used to see |
|
273 // which remote drives should be unmounted |
|
274 drives[driveNumber] = 0; |
|
275 } |
|
276 } // loop |
|
277 } |
|
278 |
|
279 // If drives now contain some remote drives, this means that they are not |
|
280 // anymore configured in CenRep and should be unmounted. |
|
281 for (int i = 0; i < EDriveZ; i++) |
|
282 { |
|
283 if (isRsfwFileSystemL(i, drives, fs)) |
|
284 { |
|
285 fs.DismountFileSystem(KRemoteFSName, i); |
|
286 } |
|
287 } |
|
288 |
|
289 CleanupStack::PopAndDestroy(3, &fs); // fs, cenrep, nameIds |
|
290 |
|
291 } |
|
292 |
|
293 // ---------------------------------------------------------------------------- |
|
294 // E32Main |
|
295 // |
|
296 // ---------------------------------------------------------------------------- |
|
297 // |
|
298 GLDEF_C TInt E32Main() |
|
299 { |
|
300 CTrapCleanup* cleanupStack = CTrapCleanup::New(); |
|
301 TRAPD(err, SyncConfiguredRemoteDrivesL()); |
|
302 delete cleanupStack; |
|
303 return err; |
|
304 } |
|
305 |
|
306 |
|
307 // End of file |
|