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mount_server: Ported to a launch_daemon world.

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* Now inherits from BServer, and gets its message port from the
  launch_daemon.
* It registers an event "initial_volumes_mounted" that allows other
  services to be started afterwards.
* This is now used in the boot launch files, and makes the scripting
  based previous solution superfluous which has been removed with this
  commit, too.
* This implements the last needed feature in order to reproduce the
  complete former boot process using the launch_daemon.
This commit is contained in:
Axel Dörfler 2015-07-16 22:36:02 +02:00
parent d94e9c97d2
commit 5e17d2d743
5 changed files with 107 additions and 204 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
data/launch/system
View File

@ -26,7 +26,6 @@ service x-vnd.Haiku-SystemLogger {
service x-vnd.Haiku-mount_server {
launch /system/servers/mount_server
legacy
}
service x-vnd.Haiku-media_server {

6
data/launch/user
View File

@ -4,11 +4,17 @@ target desktop {
service x-vnd.Be-TRAK {
launch /system/Tracker
legacy
on {
initial_volumes_mounted
}
}
service x-vnd.Be-TSKB {
launch /system/Deskbar
legacy
on {
initial_volumes_mounted
}
}
job create-installer-link {

277
src/servers/mount/AutoMounter.cpp
View File

@ -28,6 +28,7 @@
#include <FindDirectory.h>
#include <fs_info.h>
#include <fs_volume.h>
#include <LaunchRoster.h>
#include <Locale.h>
#include <Message.h>
#include <Node.h>
@ -37,7 +38,6 @@
#include <String.h>
#include <VolumeRoster.h>
//#include "AutoMounterSettings.h"
#include "MountServer.h"
@ -46,11 +46,12 @@
static const char* kMountServerSettings = "mount_server";
static const uint32 kMsgInitialScan = 'insc';
static const char* kMountFlagsKeyExtension = " mount flags";
static const char* kInitialMountEvent = "initial_volumes_mounted";
bool
static bool
BootedInSafeMode()
{
const char *safeMode = getenv("SAFEMODE");
@ -63,7 +64,7 @@ BootedInSafeMode()
AutoMounter::AutoMounter()
:
BApplication(kMountServerSignature),
BServer(kMountServerSignature, true, NULL),
fNormalMode(kRestorePreviousVolumes),
fRemovableMode(kAllVolumes),
fEjectWhenUnmounting(true)
@ -80,38 +81,30 @@ AutoMounter::AutoMounter()
BDiskDeviceRoster().StartWatching(this,
B_DEVICE_REQUEST_DEVICE | B_DEVICE_REQUEST_DEVICE_LIST);
BLaunchRoster().RegisterEvent(this, kInitialMountEvent);
}
AutoMounter::~AutoMounter()
{
BLaunchRoster().UnregisterEvent(this, kInitialMountEvent);
BDiskDeviceRoster().StopWatching(this);
}
void
AutoMounter::ReadyToRun()
{
// Do initial scan
_MountVolumes(fNormalMode, fRemovableMode, true);
BLaunchRoster().NotifyEvent(this, kInitialMountEvent);
}
void
AutoMounter::MessageReceived(BMessage* message)
{
switch (message->what) {
case B_EXECUTE_PROPERTY:
{
int32 index;
BMessage specifier;
int32 what;
const char* property = NULL;
if (message->GetCurrentSpecifier(&index, &specifier, &what,
&property) < B_OK
|| !_ScriptReceived(message, index, &specifier, what,
property)) {
BApplication::MessageReceived(message);
}
break;
}
case kMsgInitialScan:
_MountVolumes(fNormalMode, fRemovableMode, true);
break;
case kMountVolume:
_MountVolume(message);
break;
@ -270,169 +263,7 @@ AutoMounter::QuitRequested()
}
// #pragma mark - scripting
const uint32 kApplication = 0;
static property_info sPropertyInfo[] = {
{
"InitialScan",
{B_EXECUTE_PROPERTY},
{B_DIRECT_SPECIFIER},
NULL, kApplication,
{B_STRING_TYPE},
{},
{}
},
{}
};
BHandler*
AutoMounter::ResolveSpecifier(BMessage* message, int32 index,
BMessage* specifier, int32 what, const char* property)
{
BPropertyInfo propInfo(sPropertyInfo);
uint32 data;
if (propInfo.FindMatch(message, 0, specifier, what, property, &data) >= 0) {
if (data == kApplication)
return this;
BMessage reply(B_MESSAGE_NOT_UNDERSTOOD);
reply.AddInt32("error", B_ERROR);
reply.AddString("message", "Unkown specifier.");
message->SendReply(&reply);
return NULL;
}
return BApplication::ResolveSpecifier(message, index, specifier, what,
property);
}
status_t
AutoMounter::GetSupportedSuites(BMessage* data)
{
if (data == NULL)
return B_BAD_VALUE;
status_t status = data->AddString("suites",
"suite/vnd.Haiku-mount_server");
if (status != B_OK)
return status;
BPropertyInfo propertyInfo(sPropertyInfo);
status = data->AddFlat("messages", &propertyInfo);
if (status != B_OK)
return status;
return BApplication::GetSupportedSuites(data);
}
bool
AutoMounter::_ScriptReceived(BMessage *message, int32 index,
BMessage *specifier, int32 what, const char *property)
{
BMessage reply(B_REPLY);
status_t err = B_BAD_SCRIPT_SYNTAX;
switch (message->what) {
case B_EXECUTE_PROPERTY:
if (strcmp("InitialScan", property) == 0) {
_MountVolumes(fNormalMode, fRemovableMode, true);
err = reply.AddString("result",
B_TRANSLATE("Previous volumes mounted."));
}
break;
}
if (err == B_BAD_SCRIPT_SYNTAX)
return false;
if (err != B_OK) {
reply.what = B_MESSAGE_NOT_UNDERSTOOD;
reply.AddString("message", strerror(err));
}
reply.AddInt32("error", err);
message->SendReply(&reply);
return true;
}
// #pragma mark -
static bool
suggest_mount_flags(const BPartition* partition, uint32* _flags)
{
uint32 mountFlags = 0;
bool askReadOnly = true;
bool isBFS = false;
if (partition->ContentType() != NULL
&& strcmp(partition->ContentType(), kPartitionTypeBFS) == 0) {
#if 0
askReadOnly = false;
#endif
isBFS = true;
}
BDiskSystem diskSystem;
status_t status = partition->GetDiskSystem(&diskSystem);
if (status == B_OK && !diskSystem.SupportsWriting())
askReadOnly = false;
if (partition->IsReadOnly())
askReadOnly = false;
if (askReadOnly) {
// Suggest to the user to mount read-only until Haiku is more mature.
BString string;
if (partition->ContentName() != NULL) {
char buffer[512];
snprintf(buffer, sizeof(buffer),
B_TRANSLATE("Mounting volume '%s'\n\n"),
partition->ContentName());
string << buffer;
} else
string << B_TRANSLATE("Mounting volume <unnamed volume>\n\n");
// TODO: Use distro name instead of "Haiku"...
if (!isBFS) {
string << B_TRANSLATE("The file system on this volume is not the "
"Haiku file system. It is strongly suggested to mount it in "
"read-only mode. This will prevent unintentional data loss "
"because of errors in Haiku.");
} else {
string << B_TRANSLATE("It is suggested to mount all additional "
"Haiku volumes in read-only mode. This will prevent "
"unintentional data loss because of errors in Haiku.");
}
BAlert* alert = new BAlert(B_TRANSLATE("Mount warning"),
string.String(), B_TRANSLATE("Mount read/write"),
B_TRANSLATE("Cancel"), B_TRANSLATE("Mount read-only"),
B_WIDTH_FROM_WIDEST, B_WARNING_ALERT);
alert->SetShortcut(1, B_ESCAPE);
int32 choice = alert->Go();
switch (choice) {
case 0:
break;
case 1:
return false;
case 2:
mountFlags |= B_MOUNT_READ_ONLY;
break;
}
}
*_flags = mountFlags;
return true;
}
// #pragma mark - private methods
void
@ -515,7 +346,7 @@ AutoMounter::_MountVolumes(mount_mode normal, mount_mode removable,
if (!fInitialRescan) {
// Ask the user about mount flags if this is not the
// initial scan.
if (!suggest_mount_flags(partition, &mountFlags))
if (!_SuggestMountFlags(partition, &mountFlags))
return false;
} else {
BString mountFlagsKey(path.Path());
@ -561,7 +392,7 @@ AutoMounter::_MountVolume(const BMessage* message)
return;
uint32 mountFlags;
if (!suggest_mount_flags(partition, &mountFlags))
if (!_SuggestMountFlags(partition, &mountFlags))
return;
status_t status = partition->Mount(NULL, mountFlags);
@ -929,6 +760,76 @@ AutoMounter::_GetSettings(BMessage *message)
}
/*static*/ bool
AutoMounter::_SuggestMountFlags(const BPartition* partition, uint32* _flags)
{
uint32 mountFlags = 0;
bool askReadOnly = true;
bool isBFS = false;
if (partition->ContentType() != NULL
&& strcmp(partition->ContentType(), kPartitionTypeBFS) == 0) {
#if 0
askReadOnly = false;
#endif
isBFS = true;
}
BDiskSystem diskSystem;
status_t status = partition->GetDiskSystem(&diskSystem);
if (status == B_OK && !diskSystem.SupportsWriting())
askReadOnly = false;
if (partition->IsReadOnly())
askReadOnly = false;
if (askReadOnly) {
// Suggest to the user to mount read-only until Haiku is more mature.
BString string;
if (partition->ContentName() != NULL) {
char buffer[512];
snprintf(buffer, sizeof(buffer),
B_TRANSLATE("Mounting volume '%s'\n\n"),
partition->ContentName());
string << buffer;
} else
string << B_TRANSLATE("Mounting volume <unnamed volume>\n\n");
// TODO: Use distro name instead of "Haiku"...
if (!isBFS) {
string << B_TRANSLATE("The file system on this volume is not the "
"Haiku file system. It is strongly suggested to mount it in "
"read-only mode. This will prevent unintentional data loss "
"because of errors in Haiku.");
} else {
string << B_TRANSLATE("It is suggested to mount all additional "
"Haiku volumes in read-only mode. This will prevent "
"unintentional data loss because of errors in Haiku.");
}
BAlert* alert = new BAlert(B_TRANSLATE("Mount warning"),
string.String(), B_TRANSLATE("Mount read/write"),
B_TRANSLATE("Cancel"), B_TRANSLATE("Mount read-only"),
B_WIDTH_FROM_WIDEST, B_WARNING_ALERT);
alert->SetShortcut(1, B_ESCAPE);
int32 choice = alert->Go();
switch (choice) {
case 0:
break;
case 1:
return false;
case 2:
mountFlags |= B_MOUNT_READ_ONLY;
break;
}
}
*_flags = mountFlags;
return true;
}
// #pragma mark -

21
src/servers/mount/AutoMounter.h
View File

@ -1,32 +1,30 @@
/*
* Copyright 2007-2009, Haiku, Inc. All rights reserved.
* Copyright 2007-2015, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef AUTO_MOUNTER_H
#define AUTO_MOUNTER_H
#include <Application.h>
#include <DiskDeviceDefs.h>
#include <File.h>
#include <Message.h>
#include <Server.h>
class BPartition;
class BPath;
class AutoMounter : public BApplication {
class AutoMounter : public BServer {
public:
AutoMounter();
virtual ~AutoMounter();
virtual void ReadyToRun();
virtual void MessageReceived(BMessage* message);
virtual bool QuitRequested();
virtual BHandler* ResolveSpecifier(BMessage* message,
int32 index, BMessage* specifier,
int32 what, const char* property);
virtual status_t GetSupportedSuites(BMessage* data);
private:
enum mount_mode {
kNoVolumes,
@ -36,9 +34,6 @@ private:
};
void _GetSettings(BMessage* message);
bool _ScriptReceived(BMessage* msg, int32 index,
BMessage* specifier, int32 form,
const char* property);
void _MountVolumes(mount_mode normal,
mount_mode removable,
@ -62,6 +57,9 @@ private:
void _ReadSettings();
void _WriteSettings();
static bool _SuggestMountFlags(const BPartition* partition,
uint32* _flags);
private:
mount_mode fNormalMode;
mount_mode fRemovableMode;
@ -71,4 +69,5 @@ private:
BMessage fSettings;
};
#endif // AUTO_MOUNTER_H

6
src/servers/mount/Jamfile
View File

@ -1,14 +1,12 @@
SubDir HAIKU_TOP src servers mount ;
UsePrivateHeaders mount shared storage ;
UsePrivateHeaders app mount shared storage ;
Server mount_server
:
AutoMounter.cpp
# AutoMounterSettings.cpp
:
libbe.so localestub
[ TargetLibstdc++ ]
libbe.so localestub [ TargetLibstdc++ ]
:
mount_server.rdef
;