/* $Id$
* Init and cleanup code of libcaptive to be called by client application
- * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
+ * Copyright (C) 2002
-2003 Jan Kratochvil <project-captive@jankratochvil.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include "config.h"
-#include "captive/client.h" /* self */
+#include "init.h" /* self */
#include "captive/ldr.h"
#include "captive/ldr_exports.h"
#include "captive/unicode.h"
#include <fcntl.h>
#include <sys/mman.h> /* for PROT_READ, MAP_SHARED */
#include "reactos/ddk/kefuncs.h" /* for KeInitializeSpinLock() */
-#include "reactos/internal/ntoskrnl.h" /* for RtlpInitNlsTables() and IoInit() */
+#include "reactos/internal/ntoskrnl.h" /* for IoInit() */
#include "reactos/internal/ps.h" /* for PsInitProcessManagment() and PsInitThreadManagment() */
#include "reactos/ddk/iofuncs.h" /* for IoCreateFile() */
#include "captive/storage.h"
#include <popt.h>
#include <glib/gstrfuncs.h>
#include <glib/glist.h>
-#include <glib/gutils.h> /* for g_atexit() */
#include "giochannel-blind.h"
-
+#include <glib-object.h>
+#include "reactos/internal/se.h" /* for SeInit2() */
+#include "captive/leave.h"
+#include "captive/options.h"
+#include <libgnomevfs/gnome-vfs-result.h>
+#include "lib.h"
+#include <reactos/ddk/obfuncs.h>
+#include <syslog.h>
+#include "captive/macros.h"
+#include "../storage/relastblock.h" /* for captive_storage_relastblock() */
+#include "../cc/sharedcachemap.h" /* for captive_shared_cache_map_flush_all() */
+#include "standalone.h"
+
+
+struct captive_options *captive_options;
/* Are we initialized? */
static gboolean active;
static PMODULE_OBJECT ModuleObject;
/* Driver in fs module loaded by captive_w32_init() */
-static DRIVER_OBJECT DriverObject;
+DRIVER_OBJECT captive_DriverObject;
+PDRIVER_REINITIALIZE captive_DriverObject_ReinitRoutine;
+PVOID captive_DriverObject_ReinitRoutine_Context;
/* Structure holding the pointer to the toplevel IRP */
static TOP_LEVEL_IRP TopLevelIrp; /* TODO:thread */
-gchar *captive_option_filesystem;
-enum captive_option_rwmode captive_option_rwmode=CAPTIVE_OPTION_RWMODE_BLIND;
-enum captive_option_media captive_option_media=CAPTIVE_OPTION_MEDIA_DISK;
-GIOChannel *captive_image_iochannel;
-/* Non-blinded original GIOChannel for flushing during shutdown. */
-static GIOChannel *captive_image_iochannel_orig;
-guint64 captive_image_size;
-static GList *captive_load_module;
-
-
-static gchar *captive_popt_optarg;
-
-
-static void arg_filesystem(void)
-{
- g_free(captive_option_filesystem);
- captive_option_filesystem=g_strdup(captive_popt_optarg);
-}
-
-static void arg_load_module(void)
-{
- captive_load_module=g_list_append(captive_load_module,g_strdup(captive_popt_optarg));
-}
-
-static void arg_ro(void)
-{
- captive_option_rwmode=CAPTIVE_OPTION_RWMODE_RO;
-}
-static void arg_blind(void)
-{
- captive_option_rwmode=CAPTIVE_OPTION_RWMODE_BLIND;
-}
-static void arg_rw(void)
-{
- captive_option_rwmode=CAPTIVE_OPTION_RWMODE_RW;
-}
-
-static void arg_cdrom(void)
-{
- captive_option_media=CAPTIVE_OPTION_MEDIA_CDROM;
-}
-static void arg_disk(void)
-{
- captive_option_media=CAPTIVE_OPTION_MEDIA_DISK;
-}
-
+void *_local_unwind2_addr;
-static void captive_popt_callback
- (poptContext con,enum poptCallbackReason reason,const struct poptOption *opt,const char *arg,const void *data);
-
-const struct poptOption captive_popt[]={
- { argInfo:POPT_ARG_INTL_DOMAIN, arg:(void *)PACKAGE },
- { argInfo:POPT_ARG_CALLBACK, arg:(void *)captive_popt_callback },
-#define POPT_OFFSET 2
-#define CAPTIVE_POPT(longname,argInfoP,argP,descripP,argDescripP) \
- { \
- longName: (longname), \
- shortName: 0, \
- argInfo: (argInfoP), \
- arg: (void *)argP, \
- val: 0, \
- descrip: (descripP), \
- argDescrip: (argDescripP), \
- }
-#define CAPTIVE_POPT_STRING(longname,descripP,argDescripP) \
- CAPTIVE_POPT(longname,POPT_ARG_STRING,&captive_popt_optarg,descripP,argDescripP)
-#define CAPTIVE_POPT_NONE(longname,descripP) \
- CAPTIVE_POPT(longname,POPT_ARG_NONE ,NULL ,descripP,NULL )
-
- CAPTIVE_POPT_STRING("filesystem" ,N_("Path to .sys or .so filesystem module file"),N_("pathname")),
- CAPTIVE_POPT_STRING("load-module",N_("Path to any W32 module to load w/o initialization"),N_("pathname")),
- CAPTIVE_POPT_NONE( "ro" ,N_("Read/write mode: Any write access will be forbidden")),
- CAPTIVE_POPT_NONE( "blind" ,N_("Read/write mode: All writes are just simulated in memory (default)")),
- CAPTIVE_POPT_NONE( "rw" ,N_("Read/write mode: Write directly to the image file/device")),
- CAPTIVE_POPT_NONE( "cdrom" ,N_("Media type: CD-ROM")),
- CAPTIVE_POPT_NONE( "disk" ,N_("Media type: Disk (default)")),
-
-#undef CAPTIVE_POPT_NONE
-#undef CAPTIVE_POPT_STRING
-#undef CAPTIVE_POPT
- POPT_TABLEEND
- };
-
-static const struct poptOption captive_popt_standalone[]={
- CAPTIVE_POPT_INCLUDE,
- POPT_AUTOHELP
- POPT_TABLEEND
- };
-
-
-static void (*const popt_func_table[])(void)={
- arg_filesystem,
- arg_load_module,
- arg_ro,
- arg_blind,
- arg_rw,
- arg_cdrom,
- arg_disk,
- };
-
-
-/* poptCallbackType captive_popt_callback */
-static void captive_popt_callback
- (poptContext con,enum poptCallbackReason reason,const struct poptOption *opt,const char *arg,const void *data)
-{
-gint funci;
-
- g_return_if_fail(reason==POPT_CALLBACK_REASON_OPTION);
-
- funci=(opt-(captive_popt+POPT_OFFSET));
- g_return_if_fail(funci>=0);
- g_return_if_fail(funci<(gint)G_N_ELEMENTS(popt_func_table));
- if (popt_func_table[funci])
- (*popt_func_table[funci])();
- free(captive_popt_optarg);
- captive_popt_optarg=NULL; /* sanity, shouldn't be needed */
-}
+gboolean captive_debug_messages_disabled=FALSE;
static gboolean captive_w32_init(void)
{
NTSTATUS err;
gboolean errbool;
-GIOStatus erriostatus;
- g_return_val_if_fail(captive_option_filesystem!=NULL,FALSE);
-
- erriostatus=g_io_channel_set_encoding(captive_image_iochannel,
- NULL, /* encoding; force binary data */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
+ g_return_val_if_fail(captive_options!=NULL,FALSE);
+ g_return_val_if_fail(captive_options->filesystem.type!=CAPTIVE_OPTIONS_MODULE_TYPE_EMPTY,FALSE);
/* captive_giochannel_size() only _after_ g_io_channel_set_encoding() ! */
captive_image_size=captive_giochannel_size(captive_image_iochannel);
g_return_val_if_fail(captive_image_size>0,FALSE);
- /* Initialize 'FsRtlLegalAnsiCharacterArray'. */
- captive_FsRtlLegalAnsiCharacterArray_init();
-
/* Part of reactos/ntoskrnl/ke/main.c/KiSystemStartup() begins. */
/* ExpInitializeExecutive(); */
/* Part of reactos/ntoskrnl/ke/main.c/ExpInitializeExecutive() begins
/* Part of reactos/ntoskrnl/ldr/loader.c/LdrInit1() ends. */
KeLowerIrql(DISPATCH_LEVEL);
/*...*/
- KeLowerIrql(PASSIVE_LEVEL);
- /*...*/
- /* create default nls tables */
- RtlpInitNlsTables();
+ /* FIXME: create default nls tables? Really still needed? */
+ /* Obsolete: RtlpInitNlsTables(); */
/*...*/
+ /* KeInit2() */
+ /*...*/
+ KeInitializeDispatcher();
+ /*...*/
+ KeLowerIrql(PASSIVE_LEVEL);
+ errbool=SeInit1();
+ g_assert(errbool==TRUE);
ObInit();
- /*...*/
+ errbool=SeInit2();
+ g_assert(errbool==TRUE);
/* PiInitProcessManager(); */
/* Part of reactos/ntoskrnl/ps/psmgr.c/PiInitProcessManager() begins. */
PsInitProcessManagment();
InitializeListHead(&ModuleListHead);
KeInitializeSpinLock(&ModuleListLock);
/* Part of reactos/ntoskrnl/ldr/loader.c/LdrInitModuleManagement ends. */
+ /*...*/
+ /* Ntinit(); */
+ NtInitializeEventImplementation();
+ /*...*/
/* Part of reactos/ntoskrnl/ke/main.c/ExpInitializeExecutive() ends. */
/* Part of reactos/ntoskrnl/ke/main.c/KiSystemStartup() ends. */
errbool=captive_disk_init();
g_return_val_if_fail(errbool==TRUE,FALSE);
- while (captive_load_module) {
-gchar *modulename=captive_load_module->data;
+ while (captive_options->load_module) {
PMODULE_OBJECT ModuleObject_tmp;
NTSTATUS err;
/* load the module */
- err=LdrLoadModule(
- captive_utf8_to_UnicodeString_alloca(modulename), /* ModuleName */
+ err=captive_LdrLoadModule(
+ captive_options->load_module->data,
&ModuleObject_tmp); /* ModuleObjectp */
g_return_val_if_fail(NT_SUCCESS(err),FALSE);
- captive_load_module=g_list_remove(captive_load_module,modulename);
+ captive_options_module_free(captive_options->load_module->data);
+ /* also frees 'options->load_module->data' */
+ captive_options->load_module=g_list_delete_link(captive_options->load_module,captive_options->load_module);
+ }
+
+ /* Patch 'ntoskrnl.exe' loaded by 'captive_options->load_module' above. */
+ {
+ CHAR *KeNumberProcessorsp=captive_Module_GetExportAddress("ntoskrnl.exe","KeNumberProcessors");
+
+ g_assert(*KeNumberProcessorsp==0);
+ *KeNumberProcessorsp=KeNumberProcessors;
+ g_assert(*KeNumberProcessorsp==1);
}
+ /* Apply AFTER any symbols sanity checks above! */
+ if (captive_options->debug_messages)
+ captive_kernel_patches_debug();
+ else
+ captive_kernel_patches_nondebug();
- /* Patch 'ntoskrnl.exe' loaded by 'captive_load_module' above. */
- captive_kernel_patches();
+ _local_unwind2_addr=captive_Module_GetExportAddress("ntoskrnl.exe","_local_unwind2");
+
+ /* Initialize 'FsRtlLegalAnsiCharacterArray'.
+ * It requires 'ntoskrnl.exe' loaded by 'captive_options->load_module' above;
+ * captive_kernel_patches_debug()/captive_kernel_patches_nondebug() should not be needed.
+ */
+ captive_FsRtlLegalAnsiCharacterArray_init();
/* set TopLevelIrp() - FIXME: where is it set by native reactos? */
PsGetCurrentThread()->TopLevelIrp=&TopLevelIrp; /* otherwise Io{Get,Set}TopLevelIrp() would SIGSEGV */
/* You must have already captive_signal_init() passed here as the module may
* call some functions from W32 ntoskrnl.exe.
*/
+ captive_DriverObject_ReinitRoutine=NULL;
err=captive_LdrpLoadAndCallImage(
&ModuleObject, /* ModuleObjectp */
- captive_utf8_to_UnicodeString_alloca(captive_option_filesystem), /* ModuleName */
- &DriverObject, /* DriverEntry_DriverObject */
+ &captive_options->filesystem, /* options_module */
+ &captive_DriverObject, /* DriverEntry_DriverObject */
captive_utf8_to_UnicodeString_alloca("\\captive\\filesystem")); /* DriverEntry_RegistryPath */
g_return_val_if_fail(NT_SUCCESS(err),FALSE);
+ if (captive_DriverObject_ReinitRoutine) {
+ captive_stdcall_call_12((CaptiveStdCallFunc12)captive_DriverObject_ReinitRoutine,
+ &captive_DriverObject, /* DriverObject */
+ captive_DriverObject_ReinitRoutine_Context, /* Context */
+ (gpointer)1); /* Count: # of calls of ReinitRoutine incl. the current one */
+ }
return TRUE;
}
-static void captive_shutdown_atexit(void);
+static void captive_log_init_g_log_func_discard
+ (const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data)
+{
+ g_return_if_fail(message!=NULL);
+
+ /* NOP */
+}
+
+static void captive_log_init_g_log_func
+ (const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data /* unused */)
+{
+int priority;
+
+ g_return_if_fail(message!=NULL);
+
+ /* unused: LOG_EMERG */
+ /* unused: LOG_ALERT */
+ /**/ if (log_level&G_LOG_LEVEL_ERROR)
+ priority=LOG_CRIT;
+ else if (log_level&G_LOG_LEVEL_CRITICAL)
+ priority=LOG_ERR;
+ else if (log_level&G_LOG_LEVEL_WARNING)
+ priority=LOG_WARNING;
+ else if (log_level&G_LOG_LEVEL_MESSAGE)
+ priority=LOG_NOTICE;
+ else if (log_level&G_LOG_LEVEL_INFO)
+ priority=LOG_INFO;
+ else if (log_level&G_LOG_LEVEL_DEBUG)
+ priority=LOG_DEBUG;
+ else /* bogus? */
+ priority=LOG_WARNING;
+
+ syslog(priority,"%s%s%s",
+ (!(log_level&G_LOG_FLAG_RECURSION) ? "" : "RECURSION: "),
+ (!(log_level&G_LOG_FLAG_FATAL ) ? "" : "FATAL: "),
+ message);
+}
+void captive_log_init(const struct captive_options *captive_options)
+{
+ g_return_if_fail(captive_options!=NULL);
+
+ /* FIXME: Fix sharing of different 'debug_messages' for various sandboxes. */
+ captive_debug_messages_disabled=!captive_options->debug_messages;
+
+ /* FIXME: Fix sharing of different 'debug_messages' for various sandboxes. */
+ if (!captive_options->debug_messages) {
+ /* FIXME: Save handler_id and destroy it in captive_vfs_close(). */
+ g_log_set_handler(
+ G_LOG_DOMAIN, /* log_domain; "Captive" */
+ 0 /* log_levels */
+ | G_LOG_FLAG_RECURSION
+ | G_LOG_FLAG_FATAL
+ /* The same mask is in:
+ * libcaptive/sandbox/server-GLogFunc.c
+ * libcaptive/client/init.c
+ */
+ | G_LOG_LEVEL_MESSAGE
+ | G_LOG_LEVEL_INFO
+ | G_LOG_LEVEL_DEBUG,
+ captive_log_init_g_log_func_discard, /* log_func */
+ NULL); /* user_data */
+ }
+ /* We are not the sandboxed slave;
+ * 'syslog_facility' would be '-1' in slave anyway as it is not transferred through CORBA.
+ */
+ if (!captive_options->sandbox || (captive_options->sandbox_server_argv || captive_options->sandbox_server_ior)) {
+ if (captive_options->syslog_facility!=-1) {
+ openlog(
+ /* FIXME: Prefix 'ident' by device/mountpoint. */
+ G_LOG_DOMAIN, /* ident; "Captive"; FIXME: lowercase it for syslog(3)? */
+ LOG_CONS|LOG_PID, /* options */
+ captive_options->syslog_facility); /* facility */
+ /* FIXME: Save handler_id and destroy it in captive_vfs_close(). */
+ g_log_set_handler(
+ G_LOG_DOMAIN, /* log_domain; "Captive" */
+ 0 /* log_levels */
+ | 0 /* !G_LOG_FLAG_RECURSION */
+ | G_LOG_FLAG_FATAL
+ | (G_LOG_LEVEL_MASK & ~(captive_options->debug_messages ? 0 : 0
+ /* The same mask is in:
+ * libcaptive/sandbox/server-GLogFunc.c
+ * libcaptive/client/init.c
+ */
+ | G_LOG_LEVEL_MESSAGE
+ | G_LOG_LEVEL_INFO
+ | G_LOG_LEVEL_DEBUG)),
+ (GLogFunc)captive_log_init_g_log_func, /* log_func */
+ NULL); /* user_data */
+ }
+ }
+}
/**
* captive_init:
- * @captive_args: String with possible options to parse by popt.
- * %NULL value is permitted.
- * @image_iochannel: Host OS file of the disk image to mount.
- * %NULL value is permitted (initialization would not apply in such case).
*
- * Initializes %libcaptive and loads the specified filesystem.
- * You can supply %NULL value for @image_iochannel - in such case no library
- * initialization is done; only passed @captive_args are parsed. Function
- * will return you %FALSE value as it is not yet initializied.
+ * Expects #captive_options: Parsed by captive_options_parse().
+ * %NULL value is forbidden. Field #image_iochannel %NULL value is forbidden.
*
- * You should supply only @captive_args with %NULL @image_iochannel if you
- * need to parse+examine the arguments to properly initialize @image_iochannel.
+ * Initializes %libcaptive and loads the specified filesystem.
*
* Returns: %TRUE if successfuly initialized.
*/
-gboolean captive_init(const gchar *captive_args,GIOChannel *image_iochannel)
+gboolean captive_init(void)
{
gboolean errbool;
-int errint;
-#ifdef MAINTAINER_MODE
+ /* We are in sandbox child and we have the right to fail. */
g_log_set_always_fatal(~(0
|G_LOG_LEVEL_MESSAGE
|G_LOG_LEVEL_INFO
|G_LOG_LEVEL_DEBUG
));
-#endif
+ g_return_val_if_fail(captive_standalone_init_done==FALSE,FALSE);
g_return_val_if_fail(active==FALSE,FALSE);
- /* (optionally) parse the given 'captive_args' string */
- if (captive_args) {
-int captive_args_argc;
-const char **captive_args_argv=NULL;
-poptContext context;
-gboolean r=FALSE;
-
- errint=poptParseArgvString(captive_args,&captive_args_argc,&captive_args_argv);
- if (errint!=0) {
- g_assert_not_reached(); /* argument parsing args_error */
- goto args_err;
- }
- context=poptGetContext(
- PACKAGE, /* name */
- captive_args_argc,captive_args_argv, /* argc,argv */
- captive_popt_standalone, /* options */
- POPT_CONTEXT_KEEP_FIRST);
- if (context==NULL) {
- g_assert_not_reached(); /* argument recognization args_error */
- goto args_err_argv;
- }
- errint=poptReadDefaultConfig(context,
- TRUE); /* useEnv */
- if (errint!=0) {
- g_assert_not_reached(); /* argument recognization args_error */
- goto args_err_context;
- }
- errint=poptGetNextOpt(context);
- if (errint!=-1) {
- g_assert_not_reached(); /* some non-callbacked argument reached */
- goto args_err_context;
- }
- /* FIXME: reject non-"--"-prefixed arguments; how to detected them? */
- r=TRUE; /* success */
-args_err_context:
- poptFreeContext(context);
-args_err_argv:
- free(captive_args_argv); /* may be NULL here */
-args_err:
- if (!r) {
- puts("FIXME: HELP HERE");
- g_return_val_if_reached(r);
- }
- }
+ g_return_val_if_fail(captive_options!=NULL,FALSE);
+ g_return_val_if_fail(captive_options->image_iochannel!=NULL,FALSE);
- /* If we were just requested to parse the arguments. */
- if (!image_iochannel)
- return FALSE;
+ /* Do not: g_type_init();
+ * as it is done by: captive_standalone_init()
+ */
- g_return_val_if_fail(image_iochannel!=NULL,FALSE);
+ captive_log_init(captive_options);
- if (captive_option_rwmode==CAPTIVE_OPTION_RWMODE_BLIND)
- captive_image_iochannel=(GIOChannel *)captive_giochannel_blind_new(image_iochannel);
- else
- captive_image_iochannel=image_iochannel;
- captive_image_iochannel_orig=image_iochannel;
+ if (captive_options->rwmode==CAPTIVE_OPTION_RWMODE_RW && !captive_options->sandbox)
+ g_error(_("Rejecting --rw --no-sandbox operation as too dangerous - use --blind or --sandbox"));
+
+ captive_image_iochannel=captive_options->image_iochannel;
+ g_io_channel_ref(captive_image_iochannel);
+
+ captive_image_iochannel=captive_storage_relastblock(captive_image_iochannel);
+
+ if (captive_options->rwmode==CAPTIVE_OPTION_RWMODE_BLIND) {
+ GIOChannel *captive_image_iochannel_orig;
+
+ captive_image_iochannel_orig=captive_image_iochannel;
+ captive_image_iochannel=(GIOChannel *)captive_giochannel_blind_new(captive_image_iochannel,
+ TRUE); /* writeable */
+ g_io_channel_unref(captive_image_iochannel_orig); /* reffed by captive_giochannel_blind_new() */
+ }
/* Do not initialize 'captive_image_size' by captive_giochannel_size() here
* as we yet need to do g_io_channel_set_encoding().
errbool=captive_w32_init();
g_return_val_if_fail(errbool==TRUE,FALSE);
- g_atexit(captive_shutdown_atexit);
-
active=TRUE;
return TRUE;
}
+static void dismount_volume(void)
+{
+IO_STATUS_BLOCK IoStatusBlock;
+PEXTENDED_IO_STACK_LOCATION StackPtr;
+PIRP Irp;
+NTSTATUS Status;
+DEVICE_OBJECT *DeviceObject=captive_DriverObject.DeviceObject;
+OBJECT_ATTRIBUTES dir_ObjectAttributes;
+HANDLE dir_Handle;
+FILE_OBJECT *FileObject;
+GnomeVFSResult errvfsresult;
+NTSTATUS err;
+IO_STATUS_BLOCK dir_IoStatusBlock;
+/*
+ * TraceFS reported only IRP_MJ_FLUSH_BUFFERS
+ * and IRP_MJ_SHUTDOWN.
+ * Apparently it is not enough, FSCTL_DISMOUNT_VOLUME is needed,
+ * otherwise NT-5.1 autochkdsks the disk and W2000 may give BSOD during boot.
+ */
+enum step {
+ /* First item value assumed to be 0. */
+ STEP_IRP_MJ_FLUSH_BUFFERS_PRE,
+#if 0
+ /* DISABLED: STATUS_ACCESS_DENIED; FIXME: Why?
+ * The official way of device modification is: LOCK,DISMOUNT
+ * but LOCK fails for Captive if any file was written (and closed).
+ */
+ STEP_FSCTL_LOCK_VOLUME,
+#endif
+ STEP_FSCTL_DISMOUNT_VOLUME,
+ STEP_IRP_MJ_FLUSH_BUFFERS_POST,
+ STEP_MAX=3,
+ } stepi;
+WCHAR wzero;
+
+ errvfsresult=captive_ObjectAttributes_init("/!Captive!del",&dir_ObjectAttributes);
+ g_return_if_fail(errvfsresult==GNOME_VFS_OK);
+
+ /* wanted: * IoCreateFile()->ObCreateObject(,,,IoFileObjectType)->
+ * ->(IoFileObjectType->Create==IopCreateFile)()->IoMountVolume()
+ */
+ CAPTIVE_MEMZERO(&dir_IoStatusBlock); /* FIXME: Try to pre-clear it - uninitialized otherwise? */
+ dir_IoStatusBlock.Information=FILE_OPENED; /* FIXME: Try to pre-set it - uninitialized otherwise? */
+ err=IoCreateFile(
+ &dir_Handle, /* FileHandle */
+ GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE|0x80, /* DesiredAccess; 0xC0100080=GENERIC_READ|GENERIC_WRITE|SYNCHRONIZE|0x80 */
+ &dir_ObjectAttributes, /* ObjectAttributes */
+ &dir_IoStatusBlock, /* IoStatusBlock */
+ NULL, /* AllocationSize; ignored for open */
+ FILE_ATTRIBUTE_NORMAL, /* FileAttributes; ignored for open */
+ (FILE_SHARE_READ | FILE_SHARE_WRITE), /* ShareAccess; 0 means exclusive */
+ FILE_OPEN, /* CreateDisposition */
+ /* FILE_SYNCHRONOUS_IO_{,NON}ALERT: We need to allow W32 filesystem
+ * any waits to not to let it return STATUS_CANT_WAIT us.
+ * Alertability should have only effect on asynchronous events
+ * from KeWaitForSingleObject() by setting/clearing its parameter 'Alertable'.
+ */
+ FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE, /* CreateOptions; FILE_DIRECTORY_FILE is forbidden */
+ NULL, /* EaBuffer */
+ 0, /* EaLength */
+ CreateFileTypeNone, /* CreateFileType */
+ NULL, /* ExtraCreateParameters */
+ 0); /* Options */
+ g_free(dir_ObjectAttributes.ObjectName); /* left from captive_gnomevfs_uri_parent_init() */
+ g_return_if_fail(NT_SUCCESS(err));
+ g_return_if_fail(NT_SUCCESS(err)==NT_SUCCESS(dir_IoStatusBlock.Status));
+ g_return_if_fail(dir_IoStatusBlock.Information==FILE_OPENED);
+
+ Status=ObReferenceObjectByHandle(dir_Handle,FILE_LIST_DIRECTORY,IoFileObjectType,UserMode,(PVOID *)&FileObject,NULL);
+ g_assert(NT_SUCCESS(Status));
+
+ g_assert(FileObject->FileName.Length==0);
+ /* 'FileObject->FileName.MaximumLength' is not reset by IoCreateFile(). */
+ g_assert(FileObject->FileName.Buffer==NULL);
+ FileObject->FileName.MaximumLength=2;
+ FileObject->FileName.Buffer=&wzero;
+
+ for (stepi=0;stepi<STEP_MAX;stepi++) {
+ Irp=IoAllocateIrp(DeviceObject->StackSize,TRUE);
+ g_return_if_fail(Irp!=NULL);
+
+ Irp->UserIosb=&IoStatusBlock;
+ Irp->UserEvent=&FileObject->Event;
+ Irp->Tail.Overlay.Thread=PsGetCurrentThread();
+
+ StackPtr=(EXTENDED_IO_STACK_LOCATION *)IoGetNextIrpStackLocation(Irp);
+ switch (stepi) {
+ case STEP_IRP_MJ_FLUSH_BUFFERS_PRE:
+ StackPtr->MajorFunction=IRP_MJ_FLUSH_BUFFERS;
+ break;
+#if 0 /* Disabled, see 'STEP_FSCTL_LOCK_VOLUME'. */
+ case STEP_FSCTL_LOCK_VOLUME:
+ StackPtr->MajorFunction=IRP_MJ_FILE_SYSTEM_CONTROL;
+ StackPtr->MinorFunction=IRP_MN_USER_FS_REQUEST;
+ StackPtr->Parameters.FileSystemControl.OutputBufferLength=0;
+ StackPtr->Parameters.FileSystemControl.InputBufferLength=0;
+ StackPtr->Parameters.FileSystemControl.FsControlCode=FSCTL_LOCK_VOLUME;
+ StackPtr->Parameters.FileSystemControl.Type3InputBuffer=NULL;
+ break;
+#endif
+ case STEP_FSCTL_DISMOUNT_VOLUME:
+ StackPtr->MajorFunction=IRP_MJ_FILE_SYSTEM_CONTROL;
+ StackPtr->MinorFunction=IRP_MN_USER_FS_REQUEST;
+ StackPtr->Parameters.FileSystemControl.OutputBufferLength=0;
+ StackPtr->Parameters.FileSystemControl.InputBufferLength=0;
+ StackPtr->Parameters.FileSystemControl.FsControlCode=FSCTL_DISMOUNT_VOLUME;
+ StackPtr->Parameters.FileSystemControl.Type3InputBuffer=NULL;
+ break;
+ case STEP_IRP_MJ_FLUSH_BUFFERS_POST:
+ StackPtr->MajorFunction=IRP_MJ_FLUSH_BUFFERS;
+ break;
+ default: g_assert_not_reached();
+ }
+ StackPtr->Flags=0;
+ StackPtr->Control=0;
+ StackPtr->DeviceObject=DeviceObject; /* FIXME: FileObject->Vpb->DeviceObject ? */
+ StackPtr->FileObject=FileObject;
+ StackPtr->CompletionRoutine=NULL;
+
+ /* IoCallDriver() will do one ObDereferenceObject(FileObject)
+ * in its IoSecondStageCompletion().
+ * Do not leave to dereference it itself as we need its 'FileObject->Event'.
+ */
+ ObReferenceObject(FileObject);
+
+ Status=IoCallDriver(DeviceObject,Irp);
+ if (Status==STATUS_PENDING) {
+ KeWaitForSingleObject(&FileObject->Event,Executive,KernelMode,FALSE,NULL);
+ Status=IoStatusBlock.Status;
+ }
+ g_assert(NT_SUCCESS(Status)
+ || (Status==STATUS_MEDIA_WRITE_PROTECTED && captive_options->rwmode==CAPTIVE_OPTION_RWMODE_RO));
+ }
+
+ ObDereferenceObject(FileObject);
+}
+
+
+BOOLEAN captive_cc_FileObject_delete(FILE_OBJECT *FileObject);
+void captive_cc_flush(void);
+
/**
* captive_shutdown:
*
* Closes down %libcaptive. It should flush all pending buffers and successfuly
- * close the filesystem. Variable #captive_image_iochannel will be set to %NULL,
+ * close the filesystem. Variable #captive_options->image_iochannel will not be set to %NULL,
* you should close such channel yourself.
*
* Returns: %TRUE if successfuly shutdown.
g_return_val_if_fail(active==TRUE,FALSE);
g_return_val_if_fail(captive_image_iochannel!=NULL,FALSE);
+ g_return_val_if_fail(captive_options->image_iochannel!=NULL,FALSE);
+
+ /* Invoke all pending idle functions just to not to forget for anything... */
+ while (g_main_context_iteration(
+ NULL, /* context; NULL means default one */
+ FALSE)) /* may_block */
+ g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: g_main_context_iteration() proceeded",G_STRLOC);
+
+ /* Do not: captive_cc_flush(); * based on captive_leave(), not g_main idle *
+ * replaced by IRP_MJ_FLUSH_BUFFERS.
+ */
+
+ /* Probably not needed: captive_shared_cache_map_flush_all();
+ */
+
+ dismount_volume();
+
+ /* Probably not needed: captive_shared_cache_map_flush_all();
+ */
+
+ /* Invoke all pending idle functions just to not to forget for anything... */
+ while (g_main_context_iteration(
+ NULL, /* context; NULL means default one */
+ FALSE)) /* may_block */
+ g_log(G_LOG_DOMAIN,G_LOG_LEVEL_DEBUG,"%s: g_main_context_iteration() proceeded",G_STRLOC);
+
+#if 0
+ captive_PoQueueShutdownWorkItem_hooklist_invoke();
+#endif
+
+ /* Do not: captive_cc_flush();
+ * as the dirty blocks should have been already commited by dismount_volume(),
+ * any further commits would get us just STATUS_VOLUME_DISMOUNTED.
+ */
+
+ /* Do not: captive_cc_unmounting=TRUE;
+ * Without dismount_volume() it was:
+ * During IoShutdownRegisteredFileSystems() - IRP_MJ_SHUTDOWN to be specific
+ * some buffers will be written but after the IofCallDriver() it will be
+ * no longer possible to flush such buffers to their DeviceVolumeFile.
+ * Therefore we must flush such buffers on the fly although such behaviour
+ * would crash us in regular case as filesystems access BCBs even after their
+ * CcUnpinData().
+ * Currently the dirty blocks should have been already commited by dismount_volume(),
+ */
/* FIXME: ntoskrnl/ex/power.c/NtShutdownSystem() does
* IoShutdownRegistered{Devices,FileSystems} order; is it correct?
*/
IoShutdownRegisteredFileSystems();
+
+ /* Do not: captive_cc_FileObject_delete(NULL);
+ * as the dirty blocks should have been already commited by dismount_volume(),
+ * any further commits would get us just STATUS_VOLUME_DISMOUNTED.
+ */
+
IoShutdownRegisteredDevices();
- /* libcaptive is not authorized to shutdown 'captive_image_channel'. */
+ /* Just a sanity if 'captive_image_iochannel' is already reffed a bit more... */
erriostatus=g_io_channel_flush(
captive_image_iochannel, /* channel */
NULL); /* error */
g_assert(erriostatus==G_IO_STATUS_NORMAL);
- /* 'captive_image_iochannel' may be blinded wrapper. */
- if (captive_image_iochannel!=captive_image_iochannel_orig) {
- erriostatus=g_io_channel_flush(
- captive_image_iochannel_orig, /* channel */
- NULL); /* error */
- g_assert(erriostatus==G_IO_STATUS_NORMAL);
- }
-
+ g_io_channel_unref(captive_image_iochannel);
captive_image_iochannel=NULL;
active=FALSE;
return TRUE;
}
-
-
-static void captive_shutdown_atexit(void)
-{
- if (active)
- captive_shutdown();
-}
git://git.jankratochvil.net / captive.git / blobdiff