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Commit 5d0fe69b authored by longpanda's avatar longpanda
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1. change some directory structure for the build script 

2. add build script and document
   see DOC/BuildVentoyFromSource.txt for detail
parent 96541797
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DOC/BuildVentoyFromSource.txt 0 → 100644
View file @ 5d0fe69b
==========================================
1. Compile Enviroment
==========================================
My build envrioment is CentOS 7.8 x86_64. So here I first explain how to create the build environment from scratch.
Because Ventoy is based on many open source projects, so the envrioment is important. I suggest you test it on a virtual machine first.
1.1 Install CentOS 7.8
I use CentOS-7-x86_64-Everything-2003.iso and select Minimal install
1.2 Install Packages
yum install \
libXpm net-tools bzip2 wget vim gcc gcc-c++ samba dos2unix glibc-devel glibc.i686 glibc-devel.i686 \
mpfr.i686 mpfr-devel.i686 zlib.i686 rsync autogen autoconf automake libtool gettext* bison binutils \
flex device-mapper-devel SDL libpciaccess libusb freetype freetype-devel gnu-free-* qemu-* virt-* \
libvirt* vte* NetworkManager-bluetooth brlapi fuse-devel dejavu* gnu-efi* pesign shim \
iscsi-initiator-utils grub2-tools zip nasm acpica-tools glibc-static zlib-static
==========================================
2. Download Source Code
==========================================
2.1 Download Ventoy source code from github and decompress it.
Next I assume that you have unzipped the code into the /home directory (check /home/Ventoy-master/README.md file for the directory level).
2.2 Download third-part source code
https://www.fefe.de/dietlibc/dietlibc-0.34.tar.xz ===> /home/Ventoy-master/DOC/dietlibc-0.34.tar.xz
https://ftp.gnu.org/gnu/grub/grub-2.04.tar.xz ===> /home/Ventoy-master/GRUB2/grub-2.04.tar.xz
https://codeload.github.com/tianocore/edk2/zip/edk2-stable201911 ===> /home/Ventoy-master/EDK2/edk2-edk2-stable201911.zip
https://codeload.github.com/relan/exfat/zip/v1.3.0 ===> /home/Ventoy-master/ExFAT/exfat-1.3.0.zip
https://gitee.com/mirrors/libfuse/repository/archive/fuse-2.9.9.zip ===> /home/Ventoy-master/ExFAT/mirrors-libfuse-fuse-2.9.9.zip
http://ultra-embedded.com/releases/fat_io_lib.zip ===> /home/Ventoy-master/vtoyfat/fat_io_lib/fat_io_lib.zip
==========================================
3. All in one script
==========================================
I have made the whole build process in all_in_one.sh, you can run this script to build and pack ventoy.
If you want to compile a certain part separately, you can continue to refer to the later chapters of this text.
cd /home/Ventoy-master/INSTALL
sh all_in_one.sh
It should be noted that, some part of Ventoy has 32bit&64bit version (like 4.9 4.10 4.11 follows)
all_in_one.sh only build 64bit version of them, if you want to rebuild the 32bit verison. You should create a 32bit CentOS environment and build them.
Fortunately these parts are few modified, you only need to build once or you can directly use the binary I have built.
Besides, after a fully compile and pack, you can only build the part you modified (for example grub2) and run ventoy_pack.sh to generate the package.
==========================================
4. Build every part of Ventoy
==========================================
4.1 == Build grub2 ==
cd /home/Ventoy-master/GRUB2
sh buildgrub.sh
4.2 == Build ipxe.krn ==
cd /home/Ventoy-master/IPXE
sh buildipxe.sh
4.3 == Build Ventoy2Disk.exe ==
Ventoy2Disk.exe is the installer in Windows platform. And it must be built in Windows with Microsoft Visual Studio (2013+).
Open /home/Ventoy-master/Ventoy2Disk/Ventoy2Disk.sln with Visual Studio and build it.
4.4 == Build vtoyjump64.exe/vtoyjump32.exe ==
vtoyjump64.exe/vtoyjump32.exe is used to mount iso file in windows PE. You should install Microsoft Visual Studio (2013+) to build it.
Open /home/Ventoy-master/vtoyjump/vtoyjump.sln with Visual Studio and build it (64&32).
4.5 == Build dmsetup ==
Please refer to DMSETUP/build.txt
4.6 == Build ventoy_x64.efi ==
cd /home/Ventoy-master/EDK2
sh buildedk.sh
4.7 == Build VtoyTool ==
cd /home/Ventoy-master/VtoyTool
sh build.sh
4.8 == Build vtoyfat ==
cd /home/Ventoy-master/fat_io_lib
sh buildlib.sh
cd /home/Ventoy-master/vtoyfat
sh build.sh
4.9 == Build exfat-util ==
cd /home/Ventoy-master/ExFAT
sh buidlibfuse.sh
sh buidexfat.sh
After that, copy EXFAT/shared/mkexfatfs ===> /home/Ventoy-master/INSTALL/tool/mkexfatfs_64
After that, copy EXFAT/shared/mount.exfat-fuse ===> /home/Ventoy-master/INSTALL/tool/mount.exfat-fuse_64
Use the same build step to build exfat-util 32bit in a 32bit CentOS system and get mkexfatfs_32 and mount.exfat-fuse_32
4.10 == Build vtoy_fuse_iso_64/vtoy_fuse_iso_32 ==
cd /home/Ventoy-master/FUSEISO
sh build_libfuse.sh
sh build.sh
Use the same build step to build in a 32bit CentOS system and get vtoy_fuse_iso_32
4.11 == Build unsquashfs_64/unsquashfs_32 ==
cd /home/Ventoy-master/SQUASHFS/SRC
sh build_lz4.sh
sh build_lzma.sh
sh build_lzo.sh
sh build_zstd.sh
cd /home/Ventoy-master/SQUASHFS/squashfs-tools-4.4/squashfs-tools
sh build.sh
Use the same build step to build in a 32bit CentOS system and get unsquashfs_32
4.12 == Build vblade_64/vblade_32 ==
cd /home/Ventoy-master/VBLADE/vblade-master
sh build.sh
4.13 == Build zstdcat ==
Please refer to ZSTD/build.txt
4.14 == Build vtoy_gen_uuid ==
cd /home/Ventoy-master/GenUUID
sh build.sh
4.15 == Build xzminidec ==
cd /home/Ventoy-master/xz-embedded-20130513/userspace
make -f ventoy_makefile
strip --strip-all xzminidec
4.16 == Build iso9660_x64.efi ==
This efi driver is from https://github.com/pbatard/efifs
Follow all the build instructions in this project. I modified 3 files (the original and modified source are at /home/Ventoy-master/EDK2/efiffs)
==========================================
5. Binaries
==========================================
There some binaries in Ventoy install package. These files are downloaded from other open source project's website, such as busybox.
Here is the list of the binaries, their SHA-256 and the download urls:
5.1 IMG/cpio/ventoy/tool/lz4cat
https://create.stephan-brumme.com/smallz4 smallz4cat-x32-v1.4
SHA-256: 13d293ddeedb469f51da41167f79b2cbdb904e681716f6e6191b233dbb162438
5.2 IMG/cpio/ventoy/tool/ar
https://busybox.net/downloads/binaries/1.30.0-i686 busybox_AR
SHA-256: f29b7d81a983c0c85d22496f4a833c18f2528a1b666eb7d47c93084c1ed66ae0
5.3 IMG/cpio/ventoy/tool/inotifyd
https://busybox.net/downloads/binaries/1.30.0-i686 busybox_INOTIFYD
SHA-256: 3532162a8695e91a1ed9ddea28b2cb22259a90e93d5d9c4a517b6c36842c686f
5.4 IMG/cpio/ventoy/busybox/tmpsh
https://busybox.net/downloads/binaries/1.27.1-i686 busybox_ASH
SHA-256: 44a6274bca580c2758ffc173fc76d18bb855b1fe8dcf70efd9ee75cbd57dee97
5.5 IMG/cpio/ventoy/busybox/tmpxz
https://busybox.net/downloads/binaries/1.27.1-i686 busybox_XZ
SHA-256: f6cdb6293680424c29b89bde0685ca27f455166c9b302cd6082ef90681456291
5.6 INSTALL/tool/xzcat
https://busybox.net/downloads/binaries/1.30.0-i686/ busybox_XZCAT
SHA-256: 7399db642c2beaf52a16ab5264ffc55cfd1ff5699a524f63e5d48edf84e20f44
5.7 INSTALL/tool/hexdump
https://busybox.net/downloads/binaries/1.30.0-i686/ busybox_HEXDUMP
SHA-256: cde08b6a2cf5ad914f05203e18e3f7c2ed6060a63604e3d75536f19b55e8e0af
5.8 imdisk
download http://www.ltr-data.se/files/imdiskinst.exe and extract it by 7zip.
INSTALL/ventoy/imdisk/64/imdisk.sys --> sys/amd64/imdisk.sys SHA-256: 6702202220268787e361f5a82dae53362c8e6c6dcd240bb01b44dd77ae0788da
INSTALL/ventoy/imdisk/64/imdisk.exe --> cli/amd64/imdisk.exe SHA-256: 9759175380af836869443e5f21ce2e33022125d154bc6b3d1c04dc36b190de04
INSTALL/ventoy/imdisk/64/imdisk.cpl --> cpl/amd64/imdisk.cpl SHA-256: aea2ebbea2b073c947263744962af8a3eab025ff4c9d825c543e380e738a4c99
INSTALL/ventoy/imdisk/32/imdisk.sys --> sys/i386/imdisk.sys SHA-256: a94caec2f71a924d6a914c093ad4b905d7cfdea3f515ed48aaa8c3950b2dc191
INSTALL/ventoy/imdisk/32/imdisk.exe --> cli/i386/imdisk.exe SHA-256: 33b53858e2139704cf603b115a3e5e1dfd4daeaaed4d3e03c633f2df3b55dbaa
INSTALL/ventoy/imdisk/32/imdisk.cpl --> cpl/i386/imdisk.cpl SHA-256: b781d3e2d286ac8bf548f44e50cbbb3fe78203296e41e4d2e73b407668f88f2d
5.9 INSTALL/ventoy/memdisk
https://mirrors.edge.kernel.org/pub/linux/utils/boot/syslinux/syslinux-6.03.tar.gz
decompress it and memdisk is at syslinux-6.03/bios/memdisk/memdisk
SHA-256: 3f6cd656b8a14109cd3f906fee2dd2e75418f983a5e1bfdb64f44f7765588cbb
5.10 UEFIinSecureBoot
https://github.com/ValdikSS/Super-UEFIinSecureBoot-Disk/releases Super-UEFIinSecureBoot-Disk_minimal_v3.zip
unzip it and get Super-UEFIinSecureBoot-Disk_minimal.img, extract the img by 7zip.
INSTALL/EFI/BOOT/BOOTX64.EFI --> EFI/BOOT/BOOTX64.EFI SHA-256: 475552c7476ad45e42344eee8b30d44c264d200ac2468428aa86fc8795fb6e34
INSTALL/EFI/BOOT/grubx64.efi --> EFI/BOOT/grubx64.efi SHA-256: 25d858157349dc52fa70f3cdf5c62fe1e0bae37ddfc3a6b6528af9a3c745775f
INSTALL/EFI/BOOT/MokManager.efi --> EFI/BOOT/MokManager.efi SHA-256: 3bf1f46cee0832355c7dd1dba880dea9bcaa78cc44375a1559d43bc9db18933b
\ No newline at end of file
DOC/installdietlibc.sh 0 → 100644
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#!/bin/bash
if ! [ -f ./dietlibc-0.34.tar.xz ]; then
echo "No dietlibc-0.34.tar.xz found ..."
exit 1
fi
rm -rf /opt/diet32
rm -rf /opt/diet64
tar -xvf dietlibc-0.34.tar.xz
cd dietlibc-0.34
prefix=/opt/diet64 make -j 4
prefix=/opt/diet64 make install 2>/dev/null
cd ..
rm -rf dietlibc-0.34
tar -xvf dietlibc-0.34.tar.xz
cd dietlibc-0.34
sed "s/MYARCH:=.*/MYARCH=i386/" -i Makefile
sed "s/CC=gcc/CC=gcc -m32/" -i Makefile
prefix=/opt/diet32 make -j 4
prefix=/opt/diet32 make install 2>/dev/null
cd ..
rm -rf dietlibc-0.34
echo ""
echo " ================ success ==============="
echo ""
EDK2/README.txt deleted 100644 → 0
View file @ 96541797
========== About Source Code =============
Ventoy add an UEFI application module in MdeModulePkg, so I only put the module's source code here.
You can download the EDK2 code from https://github.com/tianocore/edk2 and merge the code together.
========== Build =============
Follow the EDK2's build instructions
EDK2/buildedk.sh 0 → 100644
View file @ 5d0fe69b
#!/bin/sh
rm -rf edk2-edk2-stable201911
unzip edk2-edk2-stable201911.zip
/bin/cp -a ./edk2_mod/edk2-edk2-stable201911 ./
cd edk2-edk2-stable201911
VTEFI_PATH=Build/MdeModule/RELEASE_GCC48/X64/MdeModulePkg/Application/Ventoy/Ventoy/OUTPUT/Ventoy.efi
DST_PATH=../../INSTALL/ventoy/ventoy_x64.efi
rm -f $VTEFI_PATH
rm -f $DST_PATH
make -j 4 -C BaseTools/
source ./edksetup.sh
build -p MdeModulePkg/MdeModulePkg.dsc -a X64 -b RELEASE -t GCC48
if [ -e $VTEFI_PATH ]; then
echo -e '\n\n====================== SUCCESS ========================\n\n'
cp -a $VTEFI_PATH $DST_PATH
cd ..
else
echo -e '\n\n====================== FAILED ========================\n\n'
cd ..
exit 1
fi
EDK2/efiffs/mod/grub/grub-core/fs/iso9660.c 0 → 100644
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/* iso9660.c - iso9660 implementation with extensions:
SUSP, Rock Ridge. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/fshelp.h>
#include <grub/charset.h>
#include <grub/datetime.h>
GRUB_MOD_LICENSE ("GPLv3+");
#define GRUB_ISO9660_FSTYPE_DIR 0040000
#define GRUB_ISO9660_FSTYPE_REG 0100000
#define GRUB_ISO9660_FSTYPE_SYMLINK 0120000
#define GRUB_ISO9660_FSTYPE_MASK 0170000
#define GRUB_ISO9660_LOG2_BLKSZ 2
#define GRUB_ISO9660_BLKSZ 2048
#define GRUB_ISO9660_RR_DOT 2
#define GRUB_ISO9660_RR_DOTDOT 4
#define GRUB_ISO9660_VOLDESC_BOOT 0
#define GRUB_ISO9660_VOLDESC_PRIMARY 1
#define GRUB_ISO9660_VOLDESC_SUPP 2
#define GRUB_ISO9660_VOLDESC_PART 3
#define GRUB_ISO9660_VOLDESC_END 255
extern int g_fs_name_nocase;
/* The head of a volume descriptor. */
PRAGMA_BEGIN_PACKED
struct grub_iso9660_voldesc
{
grub_uint8_t type;
grub_uint8_t magic[5];
grub_uint8_t version;
} GRUB_PACKED;
struct grub_iso9660_date2
{
grub_uint8_t year;
grub_uint8_t month;
grub_uint8_t day;
grub_uint8_t hour;
grub_uint8_t minute;
grub_uint8_t second;
grub_uint8_t offset;
} GRUB_PACKED;
/* A directory entry. */
struct grub_iso9660_dir
{
grub_uint8_t len;
grub_uint8_t ext_sectors;
grub_uint32_t first_sector;
grub_uint32_t first_sector_be;
grub_uint32_t size;
grub_uint32_t size_be;
struct grub_iso9660_date2 mtime;
grub_uint8_t flags;
grub_uint8_t unused2[6];
#define MAX_NAMELEN 255
grub_uint8_t namelen;
} GRUB_PACKED;
struct grub_iso9660_date
{
grub_uint8_t year[4];
grub_uint8_t month[2];
grub_uint8_t day[2];
grub_uint8_t hour[2];
grub_uint8_t minute[2];
grub_uint8_t second[2];
grub_uint8_t hundredth[2];
grub_uint8_t offset;
} GRUB_PACKED;
/* The primary volume descriptor. Only little endian is used. */
struct grub_iso9660_primary_voldesc
{
struct grub_iso9660_voldesc voldesc;
grub_uint8_t unused1[33];
grub_uint8_t volname[32];
grub_uint8_t unused2[16];
grub_uint8_t escape[32];
grub_uint8_t unused3[12];
grub_uint32_t path_table_size;
grub_uint8_t unused4[4];
grub_uint32_t path_table;
grub_uint8_t unused5[12];
struct grub_iso9660_dir rootdir;
grub_uint8_t unused6[624];
struct grub_iso9660_date created;
struct grub_iso9660_date modified;
} GRUB_PACKED;
/* A single entry in the path table. */
struct grub_iso9660_path
{
grub_uint8_t len;
grub_uint8_t sectors;
grub_uint32_t first_sector;
grub_uint16_t parentdir;
grub_uint8_t name[0];
} GRUB_PACKED;
/* An entry in the System Usage area of the directory entry. */
struct grub_iso9660_susp_entry
{
grub_uint8_t sig[2];
grub_uint8_t len;
/*! MSVC compilers cannot handle a zero sized array in the middle
of a struct, and grub_iso9660_susp_entry is reused within
grub_iso9660_susp_ce. Therefore, instead of defining:
grub_uint8_t version;
grub_uint8_t data[];
we leverage the fact that these attributes are the same size
and use an union. The only gotcha is that the actual
payload of u.data[] starts at 1, not 0. */
union {
grub_uint8_t version;
grub_uint8_t data[1];
} u;
} GRUB_PACKED;
/* The CE entry. This is used to describe the next block where data
can be found. */
struct grub_iso9660_susp_ce
{
struct grub_iso9660_susp_entry entry;
grub_uint32_t blk;
grub_uint32_t blk_be;
grub_uint32_t off;
grub_uint32_t off_be;
grub_uint32_t len;
grub_uint32_t len_be;
} GRUB_PACKED;
PRAGMA_END_PACKED
struct grub_iso9660_data
{
struct grub_iso9660_primary_voldesc voldesc;
grub_disk_t disk;
int rockridge;
int susp_skip;
int joliet;
struct grub_fshelp_node *node;
};
struct grub_fshelp_node
{
struct grub_iso9660_data *data;
grub_size_t have_dirents, alloc_dirents;
int have_symlink;
struct grub_iso9660_dir dirents[8];
char symlink[0];
};
enum
{
FLAG_TYPE_PLAIN = 0,
FLAG_TYPE_DIR = 2,
FLAG_TYPE = 3,
FLAG_MORE_EXTENTS = 0x80
};
static grub_dl_t my_mod;
static grub_err_t
iso9660_to_unixtime (const struct grub_iso9660_date *i, grub_int32_t *nix)
{
struct grub_datetime datetime;
if (! i->year[0] && ! i->year[1]
&& ! i->year[2] && ! i->year[3]
&& ! i->month[0] && ! i->month[1]
&& ! i->day[0] && ! i->day[1]
&& ! i->hour[0] && ! i->hour[1]
&& ! i->minute[0] && ! i->minute[1]
&& ! i->second[0] && ! i->second[1]
&& ! i->hundredth[0] && ! i->hundredth[1])
return grub_error (GRUB_ERR_BAD_NUMBER, "empty date");
datetime.year = (i->year[0] - '0') * 1000 + (i->year[1] - '0') * 100
+ (i->year[2] - '0') * 10 + (i->year[3] - '0');
datetime.month = (i->month[0] - '0') * 10 + (i->month[1] - '0');
datetime.day = (i->day[0] - '0') * 10 + (i->day[1] - '0');
datetime.hour = (i->hour[0] - '0') * 10 + (i->hour[1] - '0');
datetime.minute = (i->minute[0] - '0') * 10 + (i->minute[1] - '0');
datetime.second = (i->second[0] - '0') * 10 + (i->second[1] - '0');
if (!grub_datetime2unixtime (&datetime, nix))
return grub_error (GRUB_ERR_BAD_NUMBER, "incorrect date");
*nix -= i->offset * 60 * 15;
return GRUB_ERR_NONE;
}
static int
iso9660_to_unixtime2 (const struct grub_iso9660_date2 *i, grub_int32_t *nix)
{
struct grub_datetime datetime;
datetime.year = i->year + 1900;
datetime.month = i->month;
datetime.day = i->day;
datetime.hour = i->hour;
datetime.minute = i->minute;
datetime.second = i->second;
if (!grub_datetime2unixtime (&datetime, nix))
return 0;
*nix -= i->offset * 60 * 15;
return 1;
}
static grub_err_t
read_node (grub_fshelp_node_t node, grub_off_t off, grub_size_t len, char *buf)
{
grub_size_t i = 0;
while (len > 0)
{
grub_size_t toread;
grub_err_t err;
while (i < node->have_dirents
&& off >= grub_le_to_cpu32 (node->dirents[i].size))
{
off -= grub_le_to_cpu32 (node->dirents[i].size);
i++;
}
if (i == node->have_dirents)
return grub_error (GRUB_ERR_OUT_OF_RANGE, "read out of range");
toread = grub_le_to_cpu32 (node->dirents[i].size);
if (toread > len)
toread = len;
err = grub_disk_read (node->data->disk,
((grub_disk_addr_t) grub_le_to_cpu32 (node->dirents[i].first_sector)) << GRUB_ISO9660_LOG2_BLKSZ,
off, toread, buf);
if (err)
return err;
len -= toread;
off += toread;
buf += toread;
}
return GRUB_ERR_NONE;
}
/* Iterate over the susp entries, starting with block SUA_BLOCK on the
offset SUA_POS with a size of SUA_SIZE bytes. Hook is called for
every entry. */
static grub_err_t
grub_iso9660_susp_iterate (grub_fshelp_node_t node, grub_off_t off,
grub_ssize_t sua_size,
grub_err_t (*hook)
(struct grub_iso9660_susp_entry *entry, void *hook_arg),
void *hook_arg)
{
char *sua;
struct grub_iso9660_susp_entry *entry;
grub_err_t err;
if (sua_size <= 0)
return GRUB_ERR_NONE;
sua = grub_malloc (sua_size);
if (!sua)
return grub_errno;
/* Load a part of the System Usage Area. */
err = read_node (node, off, sua_size, sua);
if (err)
return err;
for (entry = (struct grub_iso9660_susp_entry *) sua; (char *) entry < (char *) sua + sua_size - 1 && entry->len > 0;
entry = (struct grub_iso9660_susp_entry *)
((char *) entry + entry->len))
{
/* The last entry. */
if (grub_strncmp ((char *) entry->sig, "ST", 2) == 0)
break;
/* Additional entries are stored elsewhere. */
if (grub_strncmp ((char *) entry->sig, "CE", 2) == 0)
{
struct grub_iso9660_susp_ce *ce;
grub_disk_addr_t ce_block;
ce = (struct grub_iso9660_susp_ce *) entry;
sua_size = grub_le_to_cpu32 (ce->len);
off = grub_le_to_cpu32 (ce->off);
ce_block = grub_le_to_cpu32 (ce->blk) << GRUB_ISO9660_LOG2_BLKSZ;
grub_free (sua);
sua = grub_malloc (sua_size);
if (!sua)
return grub_errno;
/* Load a part of the System Usage Area. */
err = grub_disk_read (node->data->disk, ce_block, off,
sua_size, sua);
if (err)
return err;
entry = (struct grub_iso9660_susp_entry *) sua;
}
if (hook (entry, hook_arg))
{
grub_free (sua);
return 0;
}
}
grub_free (sua);
return 0;
}
static char *
grub_iso9660_convert_string (grub_uint8_t *us, int len)
{
char *p;
int i;
grub_uint16_t t[MAX_NAMELEN / 2 + 1];
p = grub_malloc (len * GRUB_MAX_UTF8_PER_UTF16 + 1);
if (! p)
return NULL;
for (i=0; i<len; i++)
t[i] = grub_be_to_cpu16 (grub_get_unaligned16 (us + 2 * i));
*grub_utf16_to_utf8 ((grub_uint8_t *) p, t, len) = '\0';
return p;
}
static grub_err_t
susp_iterate_set_rockridge (struct grub_iso9660_susp_entry *susp_entry,
void *_data)
{
struct grub_iso9660_data *data = _data;
/* The "ER" entry is used to detect extensions. The
`IEEE_P1285' extension means Rock ridge. */
if (grub_strncmp ((char *) susp_entry->sig, "ER", 2) == 0)
{
data->rockridge = 1;
return 1;
}
return 0;
}
static grub_err_t
set_rockridge (struct grub_iso9660_data *data)
{
int sua_pos;
int sua_size;
char *sua;
struct grub_iso9660_dir rootdir;
struct grub_iso9660_susp_entry *entry;
data->rockridge = 0;
/* Read the system use area and test it to see if SUSP is
supported. */
if (grub_disk_read (data->disk,
(grub_le_to_cpu32 (data->voldesc.rootdir.first_sector)
<< GRUB_ISO9660_LOG2_BLKSZ), 0,
sizeof (rootdir), (char *) &rootdir))
return grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
sua_pos = (sizeof (rootdir) + rootdir.namelen
+ (rootdir.namelen % 2) - 1);
sua_size = rootdir.len - sua_pos;
if (!sua_size)
return GRUB_ERR_NONE;
sua = grub_malloc (sua_size);
if (! sua)
return grub_errno;
if (grub_disk_read (data->disk,
(grub_le_to_cpu32 (data->voldesc.rootdir.first_sector)
<< GRUB_ISO9660_LOG2_BLKSZ), sua_pos,
sua_size, sua))
{
grub_free (sua);
return grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
}
entry = (struct grub_iso9660_susp_entry *) sua;
/* Test if the SUSP protocol is used on this filesystem. */
if (grub_strncmp ((char *) entry->sig, "SP", 2) == 0)
{
struct grub_fshelp_node rootnode;
rootnode.data = data;
rootnode.alloc_dirents = ARRAY_SIZE (rootnode.dirents);
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* The 2nd data byte stored how many bytes are skipped every time
to get to the SUA (System Usage Area). */
data->susp_skip = entry->u.data[1 + 2];
entry = (struct grub_iso9660_susp_entry *) ((char *) entry + entry->len);
/* Iterate over the entries in the SUA area to detect
extensions. */
if (grub_iso9660_susp_iterate (&rootnode,
sua_pos, sua_size, susp_iterate_set_rockridge,
data))
{
grub_free (sua);
return grub_errno;
}
}
grub_free (sua);
return GRUB_ERR_NONE;
}
static struct grub_iso9660_data *
grub_iso9660_mount (grub_disk_t disk)
{
struct grub_iso9660_data *data = 0;
struct grub_iso9660_primary_voldesc voldesc;
int block;
data = grub_zalloc (sizeof (struct grub_iso9660_data));
if (! data)
return 0;
data->disk = disk;
block = 16;
do
{
int copy_voldesc = 0;
/* Read the superblock. */
if (grub_disk_read (disk, block << GRUB_ISO9660_LOG2_BLKSZ, 0,
sizeof (struct grub_iso9660_primary_voldesc),
(char *) &voldesc))
{
grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
goto fail;
}
if (grub_strncmp ((char *) voldesc.voldesc.magic, "CD001", 5) != 0)
{
grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
goto fail;
}
if (voldesc.voldesc.type == GRUB_ISO9660_VOLDESC_PRIMARY)
copy_voldesc = 1;
else if (!data->rockridge
&& (voldesc.voldesc.type == GRUB_ISO9660_VOLDESC_SUPP)
&& (voldesc.escape[0] == 0x25) && (voldesc.escape[1] == 0x2f)
&&
((voldesc.escape[2] == 0x40) || /* UCS-2 Level 1. */
(voldesc.escape[2] == 0x43) || /* UCS-2 Level 2. */
(voldesc.escape[2] == 0x45))) /* UCS-2 Level 3. */
{
copy_voldesc = 1;
data->joliet = 1;
}
if (copy_voldesc)
{
grub_memcpy((char *) &data->voldesc, (char *) &voldesc,
sizeof (struct grub_iso9660_primary_voldesc));
if (set_rockridge (data))
goto fail;
}
block++;
} while (voldesc.voldesc.type != GRUB_ISO9660_VOLDESC_END);
return data;
fail:
grub_free (data);
return 0;
}
static char *
grub_iso9660_read_symlink (grub_fshelp_node_t node)
{
return node->have_symlink
? grub_strdup (node->symlink
+ (node->have_dirents) * sizeof (node->dirents[0])
- sizeof (node->dirents)) : grub_strdup ("");
}
static grub_off_t
get_node_size (grub_fshelp_node_t node)
{
grub_off_t ret = 0;
grub_size_t i;
for (i = 0; i < node->have_dirents; i++)
ret += grub_le_to_cpu32 (node->dirents[i].size);
return ret;
}
struct iterate_dir_ctx
{
char *filename;
int filename_alloc;
enum grub_fshelp_filetype type;
char *symlink;
int was_continue;
};
/* Extend the symlink. */
static void
add_part (struct iterate_dir_ctx *ctx,
const char *part,
int len2)
{
int size = ctx->symlink ? grub_strlen (ctx->symlink) : 0;
ctx->symlink = grub_realloc (ctx->symlink, size + len2 + 1);
if (! ctx->symlink)
return;
grub_memcpy (ctx->symlink + size, part, len2);
ctx->symlink[size + len2] = 0;
}
static grub_err_t
susp_iterate_dir (struct grub_iso9660_susp_entry *entry,
void *_ctx)
{
struct iterate_dir_ctx *ctx = _ctx;
/* The filename in the rock ridge entry. */
if (grub_strncmp ("NM", (char *) entry->sig, 2) == 0)
{
/* The flags are stored at the data position 0, here the
filename type is stored. */
/* FIXME: Fix this slightly improper cast. */
if (entry->u.data[1 + 0] & GRUB_ISO9660_RR_DOT)
ctx->filename = (char *) ".";
else if (entry->u.data[1 + 0] & GRUB_ISO9660_RR_DOTDOT)
ctx->filename = (char *) "..";
else if (entry->len >= 5)
{
grub_size_t off = 0, csize = 1;
char *old;
csize = entry->len - 5;
old = ctx->filename;
if (ctx->filename_alloc)
{
off = grub_strlen (ctx->filename);
ctx->filename = grub_realloc (ctx->filename, csize + off + 1);
}
else
{
off = 0;
ctx->filename = grub_zalloc (csize + 1);
}
if (!ctx->filename)
{
ctx->filename = old;
return grub_errno;
}
ctx->filename_alloc = 1;
grub_memcpy (ctx->filename + off, (char *) &entry->u.data[1 + 1], csize);
ctx->filename[off + csize] = '\0';
}
}
/* The mode information (st_mode). */
else if (grub_strncmp ((char *) entry->sig, "PX", 2) == 0)
{
/* At position 0 of the PX record the st_mode information is
stored (little-endian). */
grub_uint32_t mode = ((entry->u.data[1 + 0] + (entry->u.data[1 + 1] << 8))
& GRUB_ISO9660_FSTYPE_MASK);
switch (mode)
{
case GRUB_ISO9660_FSTYPE_DIR:
ctx->type = GRUB_FSHELP_DIR;
break;
case GRUB_ISO9660_FSTYPE_REG:
ctx->type = GRUB_FSHELP_REG;
break;
case GRUB_ISO9660_FSTYPE_SYMLINK:
ctx->type = GRUB_FSHELP_SYMLINK;
break;
default:
ctx->type = GRUB_FSHELP_UNKNOWN;
}
}
else if (grub_strncmp ("SL", (char *) entry->sig, 2) == 0)
{
unsigned int pos = 1;
/* The symlink is not stored as a POSIX symlink, translate it. */
while (pos + sizeof (*entry) < entry->len)
{
/* The current position is the `Component Flag'. */
switch (entry->u.data[1 + pos] & 30)
{
case 0:
{
/* The data on pos + 2 is the actual data, pos + 1
is the length. Both are part of the `Component
Record'. */
if (ctx->symlink && !ctx->was_continue)
add_part (ctx, "/", 1);
add_part (ctx, (char *) &entry->u.data[1 + pos + 2],
entry->u.data[1 + pos + 1]);
ctx->was_continue = (entry->u.data[1 + pos] & 1);
break;
}
case 2:
add_part (ctx, "./", 2);
break;
case 4:
add_part (ctx, "../", 3);
break;
case 8:
add_part (ctx, "/", 1);
break;
}
/* In pos + 1 the length of the `Component Record' is
stored. */
pos += entry->u.data[1 + pos + 1] + 2;
}
/* Check if `grub_realloc' failed. */
if (grub_errno)
return grub_errno;
}
return 0;
}
static int
grub_iso9660_iterate_dir (grub_fshelp_node_t dir,
grub_fshelp_iterate_dir_hook_t hook, void *hook_data)
{
struct grub_iso9660_dir dirent;
grub_off_t offset = 0;
grub_off_t len;
struct iterate_dir_ctx ctx;
len = get_node_size (dir);
for (; offset < len; offset += dirent.len)
{
ctx.symlink = 0;
ctx.was_continue = 0;
if (read_node (dir, offset, sizeof (dirent), (char *) &dirent))
return 0;
/* The end of the block, skip to the next one. */
if (!dirent.len)
{
offset = (offset / GRUB_ISO9660_BLKSZ + 1) * GRUB_ISO9660_BLKSZ;
continue;
}
{
char name[MAX_NAMELEN + 1];
int nameoffset = offset + sizeof (dirent);
struct grub_fshelp_node *node;
int sua_off = (sizeof (dirent) + dirent.namelen + 1
- (dirent.namelen % 2));
int sua_size = dirent.len - sua_off;
sua_off += offset + dir->data->susp_skip;
ctx.filename = 0;
ctx.filename_alloc = 0;
ctx.type = GRUB_FSHELP_UNKNOWN;
if (dir->data->rockridge
&& grub_iso9660_susp_iterate (dir, sua_off, sua_size,
susp_iterate_dir, &ctx))
return 0;
/* Read the name. */
if (read_node (dir, nameoffset, dirent.namelen, (char *) name))
return 0;
node = grub_malloc (sizeof (struct grub_fshelp_node));
if (!node)
return 0;
node->alloc_dirents = ARRAY_SIZE (node->dirents);
node->have_dirents = 1;
/* Setup a new node. */
node->data = dir->data;
node->have_symlink = 0;
/* If the filetype was not stored using rockridge, use
whatever is stored in the iso9660 filesystem. */
if (ctx.type == GRUB_FSHELP_UNKNOWN)
{
if ((dirent.flags & FLAG_TYPE) == FLAG_TYPE_DIR)
ctx.type = GRUB_FSHELP_DIR;
else
ctx.type = GRUB_FSHELP_REG;
}
/* . and .. */
if (!ctx.filename && dirent.namelen == 1 && name[0] == 0)
ctx.filename = (char *) ".";
if (!ctx.filename && dirent.namelen == 1 && name[0] == 1)
ctx.filename = (char *) "..";
if (g_fs_name_nocase)
ctx.type |= GRUB_FSHELP_CASE_INSENSITIVE;
/* The filename was not stored in a rock ridge entry. Read it
from the iso9660 filesystem. */
if (!dir->data->joliet && !ctx.filename)
{
char *ptr;
name[dirent.namelen] = '\0';
ctx.filename = grub_strrchr (name, ';');
if (ctx.filename)
*ctx.filename = '\0';
/* ISO9660 names are not case-preserving. */
ctx.type |= GRUB_FSHELP_CASE_INSENSITIVE;
for (ptr = name; *ptr; ptr++)
*ptr = grub_tolower (*ptr);
if (ptr != name && *(ptr - 1) == '.')
*(ptr - 1) = 0;
ctx.filename = name;
}
if (dir->data->joliet && !ctx.filename)
{
char *semicolon;
ctx.filename = grub_iso9660_convert_string
((grub_uint8_t *) name, dirent.namelen >> 1);
semicolon = grub_strrchr (ctx.filename, ';');
if (semicolon)
*semicolon = '\0';
ctx.filename_alloc = 1;
}
node->dirents[0] = dirent;
while (dirent.flags & FLAG_MORE_EXTENTS)
{
offset += dirent.len;
if (read_node (dir, offset, sizeof (dirent), (char *) &dirent))
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
if (node->have_dirents >= node->alloc_dirents)
{
struct grub_fshelp_node *new_node;
node->alloc_dirents *= 2;
new_node = grub_realloc (node,
sizeof (struct grub_fshelp_node)
+ ((node->alloc_dirents
- ARRAY_SIZE (node->dirents))
* sizeof (node->dirents[0])));
if (!new_node)
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
node = new_node;
}
node->dirents[node->have_dirents++] = dirent;
}
if (ctx.symlink)
{
if ((node->alloc_dirents - node->have_dirents)
* sizeof (node->dirents[0]) < grub_strlen (ctx.symlink) + 1)
{
struct grub_fshelp_node *new_node;
new_node = grub_realloc (node,
sizeof (struct grub_fshelp_node)
+ ((node->alloc_dirents
- ARRAY_SIZE (node->dirents))
* sizeof (node->dirents[0]))
+ grub_strlen (ctx.symlink) + 1);
if (!new_node)
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
node = new_node;
}
node->have_symlink = 1;
grub_strcpy (node->symlink
+ node->have_dirents * sizeof (node->dirents[0])
- sizeof (node->dirents), ctx.symlink);
grub_free (ctx.symlink);
ctx.symlink = 0;
ctx.was_continue = 0;
}
if (hook (ctx.filename, ctx.type, node, hook_data))
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
return 1;
}
if (ctx.filename_alloc)
grub_free (ctx.filename);
}
}
return 0;
}
/* Context for grub_iso9660_dir. */
struct grub_iso9660_dir_ctx
{
grub_fs_dir_hook_t hook;
void *hook_data;
};
/* Helper for grub_iso9660_dir. */
static int
grub_iso9660_dir_iter (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node, void *data)
{
struct grub_iso9660_dir_ctx *ctx = data;
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
info.dir = ((filetype & GRUB_FSHELP_TYPE_MASK) == GRUB_FSHELP_DIR);
info.mtimeset = !!iso9660_to_unixtime2 (&node->dirents[0].mtime, &info.mtime);
grub_free (node);
return ctx->hook (filename, &info, ctx->hook_data);
}
static grub_err_t
grub_iso9660_dir (grub_device_t device, const char *path,
grub_fs_dir_hook_t hook, void *hook_data)
{
struct grub_iso9660_dir_ctx ctx = { hook, hook_data };
struct grub_iso9660_data *data = 0;
struct grub_fshelp_node rootnode;
struct grub_fshelp_node *foundnode;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (device->disk);
if (! data)
goto fail;
rootnode.data = data;
rootnode.alloc_dirents = 0;
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* Use the fshelp function to traverse the path. */
if (grub_fshelp_find_file (path, &rootnode,
&foundnode,
grub_iso9660_iterate_dir,
grub_iso9660_read_symlink,
GRUB_FSHELP_DIR))
goto fail;
/* List the files in the directory. */
grub_iso9660_iterate_dir (foundnode, grub_iso9660_dir_iter, &ctx);
if (foundnode != &rootnode)
grub_free (foundnode);
fail:
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_iso9660_open (struct grub_file *file, const char *name)
{
struct grub_iso9660_data *data;
struct grub_fshelp_node rootnode;
struct grub_fshelp_node *foundnode;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (file->device->disk);
if (!data)
goto fail;
rootnode.data = data;
rootnode.alloc_dirents = 0;
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* Use the fshelp function to traverse the path. */
if (grub_fshelp_find_file (name, &rootnode,
&foundnode,
grub_iso9660_iterate_dir,
grub_iso9660_read_symlink,
GRUB_FSHELP_REG))
goto fail;
data->node = foundnode;
file->data = data;
file->size = get_node_size (foundnode);
file->offset = 0;
return 0;
fail:
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static grub_ssize_t
grub_iso9660_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_iso9660_data *data =
(struct grub_iso9660_data *) file->data;
grub_err_t err;
/* XXX: The file is stored in as a single extent. */
data->disk->read_hook = file->read_hook;
data->disk->read_hook_data = file->read_hook_data;
err = read_node (data->node, file->offset, len, buf);
data->disk->read_hook = NULL;
if (err || grub_errno)
return -1;
return len;
}
static grub_err_t
grub_iso9660_close (grub_file_t file)
{
struct grub_iso9660_data *data =
(struct grub_iso9660_data *) file->data;
grub_free (data->node);
grub_free (data);
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_iso9660_label (grub_device_t device, char **label)
{
struct grub_iso9660_data *data;
data = grub_iso9660_mount (device->disk);
if (data)
{
if (data->joliet)
*label = grub_iso9660_convert_string (data->voldesc.volname, 16);
else
*label = grub_strndup ((char *) data->voldesc.volname, 32);
if (*label)
{
char *ptr;
for (ptr = *label; *ptr;ptr++);
ptr--;
while (ptr >= *label && *ptr == ' ')
*ptr-- = 0;
}
grub_free (data);
}
else
*label = 0;
return grub_errno;
}
static grub_err_t
grub_iso9660_uuid (grub_device_t device, char **uuid)
{
struct grub_iso9660_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (disk);
if (data)
{
if (! data->voldesc.modified.year[0] && ! data->voldesc.modified.year[1]
&& ! data->voldesc.modified.year[2] && ! data->voldesc.modified.year[3]
&& ! data->voldesc.modified.month[0] && ! data->voldesc.modified.month[1]
&& ! data->voldesc.modified.day[0] && ! data->voldesc.modified.day[1]
&& ! data->voldesc.modified.hour[0] && ! data->voldesc.modified.hour[1]
&& ! data->voldesc.modified.minute[0] && ! data->voldesc.modified.minute[1]
&& ! data->voldesc.modified.second[0] && ! data->voldesc.modified.second[1]
&& ! data->voldesc.modified.hundredth[0] && ! data->voldesc.modified.hundredth[1])
{
grub_error (GRUB_ERR_BAD_NUMBER, "no creation date in filesystem to generate UUID");
*uuid = NULL;
}
else
{
*uuid = grub_xasprintf ("%c%c%c%c-%c%c-%c%c-%c%c-%c%c-%c%c-%c%c",
data->voldesc.modified.year[0],
data->voldesc.modified.year[1],
data->voldesc.modified.year[2],
data->voldesc.modified.year[3],
data->voldesc.modified.month[0],
data->voldesc.modified.month[1],
data->voldesc.modified.day[0],
data->voldesc.modified.day[1],
data->voldesc.modified.hour[0],
data->voldesc.modified.hour[1],
data->voldesc.modified.minute[0],
data->voldesc.modified.minute[1],
data->voldesc.modified.second[0],
data->voldesc.modified.second[1],
data->voldesc.modified.hundredth[0],
data->voldesc.modified.hundredth[1]);
}
}
else
*uuid = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
/* Get writing time of filesystem. */
static grub_err_t
grub_iso9660_mtime (grub_device_t device, grub_int32_t *timebuf)
{
struct grub_iso9660_data *data;
grub_disk_t disk = device->disk;
grub_err_t err;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (disk);
if (!data)
{
grub_dl_unref (my_mod);
return grub_errno;
}
err = iso9660_to_unixtime (&data->voldesc.modified, timebuf);
grub_dl_unref (my_mod);
grub_free (data);
return err;
}
static struct grub_fs grub_iso9660_fs =
{
.name = "iso9660",
.fs_dir = grub_iso9660_dir,
.fs_open = grub_iso9660_open,
.fs_read = grub_iso9660_read,
.fs_close = grub_iso9660_close,
.fs_label = grub_iso9660_label,
.fs_uuid = grub_iso9660_uuid,
.fs_mtime = grub_iso9660_mtime,
#ifdef GRUB_UTIL
.reserved_first_sector = 1,
.blocklist_install = 1,
#endif
.next = 0
};
GRUB_MOD_INIT(iso9660)
{
grub_fs_register (&grub_iso9660_fs);
my_mod = mod;
}
GRUB_MOD_FINI(iso9660)
{
grub_fs_unregister (&grub_iso9660_fs);
}
EDK2/efiffs/mod/src/file.c 0 → 100644
View file @ 5d0fe69b
/* file.c - SimpleFileIo Interface */
/*
* Copyright © 2014-2017 Pete Batard <pete@akeo.ie>
* Based on iPXE's efi_driver.c and efi_file.c:
* Copyright © 2011,2013 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "driver.h"
/**
* Get EFI file name (for debugging)
*
* @v file EFI file
* @ret Name Name
*/
static const CHAR16 *
FileName(EFI_GRUB_FILE *File)
{
EFI_STATUS Status;
static CHAR16 Path[MAX_PATH];
Status = Utf8ToUtf16NoAlloc(File->path, Path, sizeof(Path));
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not convert filename to UTF16");
return NULL;
}
return Path;
}
/* Simple hook to populate the timestamp and directory flag when opening a file */
static INT32
InfoHook(const CHAR8 *name, const GRUB_DIRHOOK_INFO *Info, VOID *Data)
{
EFI_GRUB_FILE *File = (EFI_GRUB_FILE *) Data;
/* Look for a specific file */
if (strcmpa(name, File->basename) != 0)
return 0;
File->IsDir = (BOOLEAN) (Info->Dir);
if (Info->MtimeSet)
File->Mtime = Info->Mtime;
return 0;
}
/**
* Open file
*
* @v This File handle
* @ret new New file handle
* @v Name File name
* @v Mode File mode
* @v Attributes File attributes (for newly-created files)
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileOpen(EFI_FILE_HANDLE This, EFI_FILE_HANDLE *New,
CHAR16 *Name, UINT64 Mode, UINT64 Attributes)
{
EFI_STATUS Status;
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
EFI_GRUB_FILE *NewFile;
// TODO: Use dynamic buffers?
char path[MAX_PATH], clean_path[MAX_PATH], *dirname;
INTN i, len;
BOOLEAN AbsolutePath = (*Name == L'\\');
PrintInfo(L"Open(" PERCENT_P L"%s, \"%s\")\n", (UINTN) This,
IS_ROOT(File)?L" <ROOT>":L"", Name);
/* Fail unless opening read-only */
if (Mode != EFI_FILE_MODE_READ) {
PrintWarning(L"File '%s' can only be opened in read-only mode\n", Name);
return EFI_WRITE_PROTECTED;
}
/* Additional failures */
if ((StrCmp(Name, L"..") == 0) && IS_ROOT(File)) {
PrintInfo(L"Trying to open <ROOT>'s parent\n");
return EFI_NOT_FOUND;
}
/* See if we're trying to reopen current (which the EFI Shell insists on doing) */
if ((*Name == 0) || (StrCmp(Name, L".") == 0)) {
PrintInfo(L" Reopening %s\n", IS_ROOT(File)?L"<ROOT>":FileName(File));
File->RefCount++;
*New = This;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
/* If we have an absolute path, don't bother completing with the parent */
if (AbsolutePath) {
len = 0;
} else {
strcpya(path, File->path);
len = strlena(path);
/* Add delimiter if needed */
if ((len == 0) || (path[len-1] != '/'))
path[len++] = '/';
}
/* Copy the rest of the path (converted to UTF-8) */
Status = Utf16ToUtf8NoAlloc(Name, &path[len], sizeof(path) - len);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not convert path to UTF-8");
return Status;
}
/* Convert the delimiters */
for (i = strlena(path) - 1 ; i >= len; i--) {
if (path[i] == '\\')
path[i] = '/';
}
/* We only want to handle with absolute paths */
clean_path[0] = '/';
/* Find out if we're dealing with root by removing the junk */
CopyPathRelative(&clean_path[1], path, MAX_PATH - 1);
if (clean_path[1] == 0) {
/* We're dealing with the root */
PrintInfo(L" Reopening <ROOT>\n");
*New = &File->FileSystem->RootFile->EfiFile;
/* Must make sure that DirIndex is reset too (NB: no concurrent access!) */
File->FileSystem->RootFile->DirIndex = 0;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
// TODO: eventually we should seek for already opened files and increase RefCount
/* Allocate and initialise an instance of a file */
Status = GrubCreateFile(&NewFile, File->FileSystem);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not instantiate file");
return Status;
}
NewFile->path = AllocatePool(strlena(clean_path)+1);
if (NewFile->path == NULL) {
GrubDestroyFile(NewFile);
PrintError(L"Could not instantiate path\n");
return EFI_OUT_OF_RESOURCES;
}
strcpya(NewFile->path, clean_path);
/* Isolate the basename and dirname */
for (i = strlena(clean_path) - 1; i >= 0; i--) {
if (clean_path[i] == '/') {
clean_path[i] = 0;
break;
}
}
dirname = (i <= 0) ? "/" : clean_path;
NewFile->basename = &NewFile->path[i+1];
/* Find if we're working with a directory and fill the grub timestamp */
Status = GrubDir(NewFile, dirname, InfoHook, (VOID *) NewFile);
if (EFI_ERROR(Status)) {
if (Status != EFI_NOT_FOUND)
PrintStatusError(Status, L"Could not get file attributes for '%s'", Name);
FreePool(NewFile->path);
GrubDestroyFile(NewFile);
return Status;
}
/* Finally we can call on GRUB open() if it's a regular file */
if (!NewFile->IsDir) {
Status = GrubOpen(NewFile);
if (EFI_ERROR(Status)) {
if (Status != EFI_NOT_FOUND)
PrintStatusError(Status, L"Could not open file '%s'", Name);
FreePool(NewFile->path);
GrubDestroyFile(NewFile);
return Status;
}
}
NewFile->RefCount++;
*New = &NewFile->EfiFile;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileOpenEx(EFI_FILE_HANDLE This, EFI_FILE_HANDLE *New, CHAR16 *Name,
UINT64 Mode, UINT64 Attributes, EFI_FILE_IO_TOKEN *Token)
{
return FileOpen(This, New, Name, Mode, Attributes);
}
/**
* Close file
*
* @v This File handle
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileClose(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Close(" PERCENT_P L"|'%s') %s\n", (UINTN) This, FileName(File),
IS_ROOT(File)?L"<ROOT>":L"");
/* Nothing to do it this is the root */
if (IS_ROOT(File))
return EFI_SUCCESS;
if (--File->RefCount == 0) {
/* Close the file if it's a regular one */
if (!File->IsDir)
GrubClose(File);
/* NB: basename points into File->path and does not need to be freed */
if (File->path != NULL)
FreePool(File->path);
GrubDestroyFile(File);
}
return EFI_SUCCESS;
}
/**
* Close and delete file
*
* @v This File handle
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileDelete(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintError(L"Cannot delete '%s'\n", FileName(File));
/* Close file */
FileClose(This);
/* Warn of failure to delete */
return EFI_WARN_DELETE_FAILURE;
}
/* GRUB uses a callback for each directory entry, whereas EFI uses repeated
* firmware generated calls to FileReadDir() to get the info for each entry,
* so we have to reconcile the twos. For now, we'll re-issue a call to GRUB
* dir(), and run through all the entries (to find the one we
* are interested in) multiple times. Maybe later we'll try to optimize this
* by building a one-off chained list of entries that we can parse...
*/
static INT32
DirHook(const CHAR8 *name, const GRUB_DIRHOOK_INFO *DirInfo, VOID *Data)
{
EFI_STATUS Status;
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
INT64 *Index = (INT64 *) &Info->FileSize;
CHAR8 *filename = (CHAR8 *) (UINTN) Info->PhysicalSize;
EFI_TIME Time = { 1970, 01, 01, 00, 00, 00, 0, 0, 0, 0, 0};
// Eliminate '.' or '..'
if ((name[0] == '.') && ((name[1] == 0) || ((name[1] == '.') && (name[2] == 0))))
return 0;
/* Ignore any entry that doesn't match our index */
if ((*Index)-- != 0)
return 0;
strcpya(filename, name);
Status = Utf8ToUtf16NoAlloc(filename, Info->FileName, (INTN)(Info->Size - sizeof(EFI_FILE_INFO)));
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert directory entry to UTF-8");
return (INT32) Status;
}
/* The Info struct size already accounts for the extra NUL */
Info->Size = sizeof(*Info) + StrLen(Info->FileName) * sizeof(CHAR16);
// Oh, and of course GRUB uses a 32 bit signed mtime value (seriously, wtf guys?!?)
if (DirInfo->MtimeSet)
GrubTimeToEfiTime(DirInfo->Mtime, &Time);
CopyMem(&Info->CreateTime, &Time, sizeof(Time));
CopyMem(&Info->LastAccessTime, &Time, sizeof(Time));
CopyMem(&Info->ModificationTime, &Time, sizeof(Time));
Info->Attribute = EFI_FILE_READ_ONLY;
if (DirInfo->Dir)
Info->Attribute |= EFI_FILE_DIRECTORY;
return 0;
}
/**
* Read directory entry
*
* @v file EFI file
* @v Len Length to read
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS
FileReadDir(EFI_GRUB_FILE *File, UINTN *Len, VOID *Data)
{
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
EFI_STATUS Status;
/* We temporarily repurpose the FileSize as a *signed* entry index */
INT64 *Index = (INT64 *) &Info->FileSize;
/* And PhysicalSize as a pointer to our filename */
CHAR8 **basename = (CHAR8 **) &Info->PhysicalSize;
CHAR8 path[MAX_PATH];
EFI_GRUB_FILE *TmpFile = NULL;
INTN len;
/* Unless we can fit our maximum size, forget it */
if (*Len < sizeof(EFI_FILE_INFO)) {
*Len = MINIMUM_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
/* Populate our Info template */
ZeroMem(Data, *Len);
Info->Size = *Len;
*Index = File->DirIndex;
strcpya(path, File->path);
len = strlena(path);
if (path[len-1] != '/')
path[len++] = '/';
*basename = &path[len];
/* Invoke GRUB's directory listing */
Status = GrubDir(File, File->path, DirHook, Data);
if (*Index >= 0) {
/* No more entries */
*Len = 0;
return EFI_SUCCESS;
}
if (EFI_ERROR(Status)) {
if (Status == EFI_BUFFER_TOO_SMALL) {
*Len = MINIMUM_INFO_LENGTH;
} else {
PrintStatusError(Status, L"Directory listing failed");
}
return Status;
}
/* Our Index/FileSize must be reset */
Info->FileSize = 0;
Info->PhysicalSize = 0;
/* For regular files, we still need to fill the size */
if (!(Info->Attribute & EFI_FILE_DIRECTORY)) {
/* Open the file and read its size */
Status = GrubCreateFile(&TmpFile, File->FileSystem);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Unable to create temporary file");
return Status;
}
TmpFile->path = path;
Status = GrubOpen(TmpFile);
if (EFI_ERROR(Status)) {
// TODO: EFI_NO_MAPPING is returned for links...
PrintStatusError(Status, L"Unable to obtain the size of '%s'", Info->FileName);
/* Non fatal error */
} else {
Info->FileSize = GrubGetFileSize(TmpFile);
Info->PhysicalSize = GrubGetFileSize(TmpFile);
GrubClose(TmpFile);
}
GrubDestroyFile(TmpFile);
}
*Len = (UINTN) Info->Size;
/* Advance to the next entry */
File->DirIndex++;
// PrintInfo(L" Entry[%d]: '%s' %s\n", File->DirIndex-1, Info->FileName,
// (Info->Attribute&EFI_FILE_DIRECTORY)?L"<DIR>":L"");
return EFI_SUCCESS;
}
/**
* Read from file
*
* @v This File handle
* @v Len Length to read
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileRead(EFI_FILE_HANDLE This, UINTN *Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Read(" PERCENT_P L"|'%s', %d) %s\n", (UINTN) This, FileName(File),
*Len, File->IsDir?L"<DIR>":L"");
/* If this is a directory, then fetch the directory entries */
if (File->IsDir)
return FileReadDir(File, Len, Data);
return GrubRead(File, Data, Len);
}
/* Ex version */
static EFI_STATUS EFIAPI
FileReadEx(IN EFI_FILE_PROTOCOL *This, IN OUT EFI_FILE_IO_TOKEN *Token)
{
return FileRead(This, &(Token->BufferSize), Token->Buffer);
}
/**
* Write to file
*
* @v This File handle
* @v Len Length to write
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileWrite(EFI_FILE_HANDLE This, UINTN *Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintError(L"Cannot write to '%s'\n", FileName(File));
return EFI_WRITE_PROTECTED;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileWriteEx(IN EFI_FILE_PROTOCOL *This, IN OUT EFI_FILE_IO_TOKEN *Token)
{
return FileWrite(This, &(Token->BufferSize), Token->Buffer);
}
/**
* Set file position
*
* @v This File handle
* @v Position New file position
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileSetPosition(EFI_FILE_HANDLE This, UINT64 Position)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
UINT64 FileSize;
PrintInfo(L"SetPosition(" PERCENT_P L"|'%s', %lld) %s\n", (UINTN) This,
FileName(File), Position, (File->IsDir)?L"<DIR>":L"");
/* If this is a directory, reset the Index to the start */
if (File->IsDir) {
if (Position != 0)
return EFI_INVALID_PARAMETER;
File->DirIndex = 0;
return EFI_SUCCESS;
}
/* Fail if we attempt to seek past the end of the file (since
* we do not support writes).
*/
FileSize = GrubGetFileSize(File);
if (Position > FileSize) {
PrintError(L"'%s': Cannot seek to #%llx of %llx\n",
FileName(File), Position, FileSize);
return EFI_UNSUPPORTED;
}
/* Set position */
GrubSetFileOffset(File, Position);
PrintDebug(L"'%s': Position set to %llx\n",
FileName(File), Position);
return EFI_SUCCESS;
}
/**
* Get file position
*
* @v This File handle
* @ret Position New file position
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileGetPosition(EFI_FILE_HANDLE This, UINT64 *Position)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"GetPosition(" PERCENT_P L"|'%s', %lld)\n", (UINTN) This, FileName(File));
if (File->IsDir)
*Position = File->DirIndex;
else
*Position = GrubGetFileOffset(File);
return EFI_SUCCESS;
}
/**
* Get file information
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileGetInfo(EFI_FILE_HANDLE This, EFI_GUID *Type, UINTN *Len, VOID *Data)
{
EFI_STATUS Status;
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
EFI_FILE_SYSTEM_INFO *FSInfo = (EFI_FILE_SYSTEM_INFO *) Data;
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *VLInfo = (EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *)Data;
EFI_TIME Time;
CHAR8* label;
UINTN tmpLen;
PrintInfo(L"GetInfo(" PERCENT_P L"|'%s', %d) %s\n", (UINTN) This,
FileName(File), *Len, File->IsDir?L"<DIR>":L"");
/* Determine information to return */
if (CompareMem(Type, &gEfiFileInfoGuid, sizeof(*Type)) == 0) {
/* Fill file information */
PrintExtra(L"Get regular file information\n");
if (*Len < sizeof(EFI_FILE_INFO)) {
*Len = MINIMUM_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
ZeroMem(Data, sizeof(EFI_FILE_INFO));
Info->Attribute = EFI_FILE_READ_ONLY;
GrubTimeToEfiTime(File->Mtime, &Time);
CopyMem(&Info->CreateTime, &Time, sizeof(Time));
CopyMem(&Info->LastAccessTime, &Time, sizeof(Time));
CopyMem(&Info->ModificationTime, &Time, sizeof(Time));
if (File->IsDir) {
Info->Attribute |= EFI_FILE_DIRECTORY;
} else {
Info->FileSize = GrubGetFileSize(File);
Info->PhysicalSize = GrubGetFileSize(File);
}
tmpLen = (UINTN)(Info->Size - sizeof(EFI_FILE_INFO) - 1);
Status = Utf8ToUtf16NoAllocUpdateLen(File->basename, Info->FileName, &tmpLen);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL) {
PrintStatusError(Status, L"Could not convert basename to UTF-16");
} else {
*Len = MINIMUM_INFO_LENGTH;
}
return Status;
}
/* The Info struct size already accounts for the extra NUL */
Info->Size = sizeof(EFI_FILE_INFO) + tmpLen;
*Len = (INTN)Info->Size;
return EFI_SUCCESS;
} else if (CompareMem(Type, &gEfiFileSystemInfoGuid, sizeof(*Type)) == 0) {
/* Get file system information */
PrintExtra(L"Get file system information\n");
if (*Len < sizeof(EFI_FILE_SYSTEM_INFO)) {
*Len = MINIMUM_FS_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
ZeroMem(Data, sizeof(EFI_FILE_INFO));
FSInfo->Size = *Len;
FSInfo->ReadOnly = 1;
/* NB: This should really be cluster size, but we don't have access to that */
if (File->FileSystem->BlockIo2 != NULL) {
FSInfo->BlockSize = File->FileSystem->BlockIo2->Media->BlockSize;
} else {
FSInfo->BlockSize = File->FileSystem->BlockIo->Media->BlockSize;
}
if (FSInfo->BlockSize == 0) {
PrintWarning(L"Corrected Media BlockSize\n");
FSInfo->BlockSize = 512;
}
if (File->FileSystem->BlockIo2 != NULL) {
FSInfo->VolumeSize = (File->FileSystem->BlockIo2->Media->LastBlock + 1) *
FSInfo->BlockSize;
} else {
FSInfo->VolumeSize = (File->FileSystem->BlockIo->Media->LastBlock + 1) *
FSInfo->BlockSize;
}
/* No idea if we can easily get this for GRUB, and the device is RO anyway */
FSInfo->FreeSpace = 0;
Status = GrubLabel(File, &label);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not read disk label");
FSInfo->VolumeLabel[0] = 0;
*Len = sizeof(EFI_FILE_SYSTEM_INFO);
} else {
tmpLen = (INTN)(FSInfo->Size - sizeof(EFI_FILE_SYSTEM_INFO) - 1);
Status = Utf8ToUtf16NoAllocUpdateLen(label, FSInfo->VolumeLabel, &tmpLen);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL) {
PrintStatusError(Status, L"Could not convert label to UTF-16");
} else {
*Len = MINIMUM_FS_INFO_LENGTH;
}
return Status;
}
FSInfo->Size = sizeof(EFI_FILE_SYSTEM_INFO) - 1 + tmpLen;
*Len = (INTN)FSInfo->Size;
}
return EFI_SUCCESS;
} else if (CompareMem(Type, &gEfiFileSystemVolumeLabelInfoIdGuid, sizeof(*Type)) == 0) {
/* Get the volume label */
Status = GrubLabel(File, &label);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not read disk label");
}
else {
Status = Utf8ToUtf16NoAllocUpdateLen(label, VLInfo->VolumeLabel, Len);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert label to UTF-16");
return Status;
}
}
return EFI_SUCCESS;
} else {
Print(L"'%s': Cannot get information of type ", FileName(File));
PrintGuid(Type);
Print(L"\n");
return EFI_UNSUPPORTED;
}
}
/**
* Set file information
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileSetInfo(EFI_FILE_HANDLE This, EFI_GUID *Type, UINTN Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
Print(L"Cannot set information of type ");
PrintGuid(Type);
Print(L" for file '%s'\n", FileName(File));
return EFI_WRITE_PROTECTED;
}
/**
* Flush file modified data
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileFlush(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Flush(" PERCENT_P L"|'%s')\n", (UINTN) This, FileName(File));
return EFI_SUCCESS;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileFlushEx(EFI_FILE_HANDLE This, EFI_FILE_IO_TOKEN *Token)
{
return FileFlush(This);
}
/**
* Open root directory
*
* @v This EFI simple file system
* @ret Root File handle for the root directory
* @ret Status EFI status code
*/
EFI_STATUS EFIAPI
FileOpenVolume(EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This, EFI_FILE_HANDLE *Root)
{
EFI_FS *FSInstance = _CR(This, EFI_FS, FileIoInterface);
PrintInfo(L"OpenVolume\n");
*Root = &FSInstance->RootFile->EfiFile;
return EFI_SUCCESS;
}
/**
* Install the EFI simple file system protocol
* If successful this call instantiates a new FS#: drive, that is made
* available on the next 'map -r'. Note that all this call does is add
* the FS protocol. OpenVolume won't be called until a process tries
* to access a file or the root directory on the volume.
*/
EFI_STATUS
FSInstall(EFI_FS *This, EFI_HANDLE ControllerHandle)
{
EFI_STATUS Status;
/* Check if it's a filesystem we can handle */
if (!GrubFSProbe(This))
return EFI_UNSUPPORTED;
PrintInfo(L"FSInstall: %s\n", This->DevicePathString);
/* Initialize the root handle */
Status = GrubCreateFile(&This->RootFile, This);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not create root file");
return Status;
}
/* Setup the EFI part */
This->RootFile->EfiFile.Revision = EFI_FILE_PROTOCOL_REVISION2;
This->RootFile->EfiFile.Open = FileOpen;
This->RootFile->EfiFile.Close = FileClose;
This->RootFile->EfiFile.Delete = FileDelete;
This->RootFile->EfiFile.Read = FileRead;
This->RootFile->EfiFile.Write = FileWrite;
This->RootFile->EfiFile.GetPosition = FileGetPosition;
This->RootFile->EfiFile.SetPosition = FileSetPosition;
This->RootFile->EfiFile.GetInfo = FileGetInfo;
This->RootFile->EfiFile.SetInfo = FileSetInfo;
This->RootFile->EfiFile.Flush = FileFlush;
This->RootFile->EfiFile.OpenEx = FileOpenEx;
This->RootFile->EfiFile.ReadEx = FileReadEx;
This->RootFile->EfiFile.WriteEx = FileWriteEx;
This->RootFile->EfiFile.FlushEx = FileFlushEx;
/* Setup the other attributes */
This->RootFile->path = "/";
This->RootFile->basename = &This->RootFile->path[1];
This->RootFile->IsDir = TRUE;
/* Install the simple file system protocol. */
Status = BS->InstallMultipleProtocolInterfaces(&ControllerHandle,
&gEfiSimpleFileSystemProtocolGuid, &This->FileIoInterface,
NULL);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not install simple file system protocol");
return Status;
}
return EFI_SUCCESS;
}
/* Uninstall EFI simple file system protocol */
VOID
FSUninstall(EFI_FS *This, EFI_HANDLE ControllerHandle)
{
PrintInfo(L"FSUninstall: %s\n", This->DevicePathString);
BS->UninstallMultipleProtocolInterfaces(ControllerHandle,
&gEfiSimpleFileSystemProtocolGuid, &This->FileIoInterface,
NULL);
}
EDK2/efiffs/mod/src/logging.c 0 → 100644
View file @ 5d0fe69b
/* logging.c - EFI logging */
/*
* Copyright © 2014-2017 Pete Batard <pete@akeo.ie>
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "driver.h"
/* Not defined in gnu-efi yet */
#define SHELL_VARIABLE_GUID { \
0x158def5a, 0xf656, 0x419c, { 0xb0, 0x27, 0x7a, 0x31, 0x92, 0xc0, 0x79, 0xd2 } \
}
extern EFI_GUID gShellVariableGuid;
EFI_GUID ShellVariable = SHELL_VARIABLE_GUID;
static UINTN PrintNone(IN CONST CHAR16 *fmt, ... ) { return 0; }
Print_t PrintError = PrintNone;
Print_t PrintWarning = PrintNone;
Print_t PrintInfo = PrintNone;
Print_t PrintDebug = PrintNone;
Print_t PrintExtra = PrintNone;
Print_t* PrintTable[] = { &PrintError, &PrintWarning, &PrintInfo,
&PrintDebug, &PrintExtra };
/* Global driver verbosity level */
#if !defined(DEFAULT_LOGLEVEL)
#define DEFAULT_LOGLEVEL FS_LOGLEVEL_NONE
#endif
UINTN LogLevel = DEFAULT_LOGLEVEL;
/**
* Print status
*
* @v Status EFI status code
*/
VOID
PrintStatus(EFI_STATUS Status)
{
#if defined(__MAKEWITH_GNUEFI)
CHAR16 StatusString[64];
StatusToString(StatusString, Status);
// Make sure the Status is unsigned 32 bits
Print(L": [%d] %s\n", (Status & 0x7FFFFFFF), StatusString);
#else
Print(L": [%d]\n", (Status & 0x7FFFFFFF));
#endif
}
int g_fs_name_nocase = 0;
/*
* You can control the verbosity of the driver output by setting the shell environment
* variable FS_LOGGING to one of the values defined in the FS_LOGLEVEL constants
*/
VOID
SetLogging(VOID)
{
EFI_STATUS Status;
CHAR16 LogVar[4];
UINTN i, LogVarSize = sizeof(LogVar);
i = LogVarSize;
Status = RT->GetVariable(L"FS_NAME_NOCASE", &ShellVariable, NULL, &i, LogVar);
if (Status == EFI_SUCCESS)
g_fs_name_nocase = 1;
Status = RT->GetVariable(L"FS_LOGGING", &ShellVariable, NULL, &LogVarSize, LogVar);
if (Status == EFI_SUCCESS)
LogLevel = Atoi(LogVar);
for (i=0; i<ARRAYSIZE(PrintTable); i++)
*PrintTable[i] = (i < LogLevel)?(Print_t)Print:(Print_t)PrintNone;
PrintExtra(L"LogLevel = %d\n", LogLevel);
}
EDK2/efiffs/org/grub/grub-core/fs/iso9660.c 0 → 100644
View file @ 5d0fe69b
/* iso9660.c - iso9660 implementation with extensions:
SUSP, Rock Ridge. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2004,2005,2006,2007,2008,2009,2010 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/err.h>
#include <grub/file.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/disk.h>
#include <grub/dl.h>
#include <grub/types.h>
#include <grub/fshelp.h>
#include <grub/charset.h>
#include <grub/datetime.h>
GRUB_MOD_LICENSE ("GPLv3+");
#define GRUB_ISO9660_FSTYPE_DIR 0040000
#define GRUB_ISO9660_FSTYPE_REG 0100000
#define GRUB_ISO9660_FSTYPE_SYMLINK 0120000
#define GRUB_ISO9660_FSTYPE_MASK 0170000
#define GRUB_ISO9660_LOG2_BLKSZ 2
#define GRUB_ISO9660_BLKSZ 2048
#define GRUB_ISO9660_RR_DOT 2
#define GRUB_ISO9660_RR_DOTDOT 4
#define GRUB_ISO9660_VOLDESC_BOOT 0
#define GRUB_ISO9660_VOLDESC_PRIMARY 1
#define GRUB_ISO9660_VOLDESC_SUPP 2
#define GRUB_ISO9660_VOLDESC_PART 3
#define GRUB_ISO9660_VOLDESC_END 255
/* The head of a volume descriptor. */
PRAGMA_BEGIN_PACKED
struct grub_iso9660_voldesc
{
grub_uint8_t type;
grub_uint8_t magic[5];
grub_uint8_t version;
} GRUB_PACKED;
struct grub_iso9660_date2
{
grub_uint8_t year;
grub_uint8_t month;
grub_uint8_t day;
grub_uint8_t hour;
grub_uint8_t minute;
grub_uint8_t second;
grub_uint8_t offset;
} GRUB_PACKED;
/* A directory entry. */
struct grub_iso9660_dir
{
grub_uint8_t len;
grub_uint8_t ext_sectors;
grub_uint32_t first_sector;
grub_uint32_t first_sector_be;
grub_uint32_t size;
grub_uint32_t size_be;
struct grub_iso9660_date2 mtime;
grub_uint8_t flags;
grub_uint8_t unused2[6];
#define MAX_NAMELEN 255
grub_uint8_t namelen;
} GRUB_PACKED;
struct grub_iso9660_date
{
grub_uint8_t year[4];
grub_uint8_t month[2];
grub_uint8_t day[2];
grub_uint8_t hour[2];
grub_uint8_t minute[2];
grub_uint8_t second[2];
grub_uint8_t hundredth[2];
grub_uint8_t offset;
} GRUB_PACKED;
/* The primary volume descriptor. Only little endian is used. */
struct grub_iso9660_primary_voldesc
{
struct grub_iso9660_voldesc voldesc;
grub_uint8_t unused1[33];
grub_uint8_t volname[32];
grub_uint8_t unused2[16];
grub_uint8_t escape[32];
grub_uint8_t unused3[12];
grub_uint32_t path_table_size;
grub_uint8_t unused4[4];
grub_uint32_t path_table;
grub_uint8_t unused5[12];
struct grub_iso9660_dir rootdir;
grub_uint8_t unused6[624];
struct grub_iso9660_date created;
struct grub_iso9660_date modified;
} GRUB_PACKED;
/* A single entry in the path table. */
struct grub_iso9660_path
{
grub_uint8_t len;
grub_uint8_t sectors;
grub_uint32_t first_sector;
grub_uint16_t parentdir;
grub_uint8_t name[0];
} GRUB_PACKED;
/* An entry in the System Usage area of the directory entry. */
struct grub_iso9660_susp_entry
{
grub_uint8_t sig[2];
grub_uint8_t len;
/*! MSVC compilers cannot handle a zero sized array in the middle
of a struct, and grub_iso9660_susp_entry is reused within
grub_iso9660_susp_ce. Therefore, instead of defining:
grub_uint8_t version;
grub_uint8_t data[];
we leverage the fact that these attributes are the same size
and use an union. The only gotcha is that the actual
payload of u.data[] starts at 1, not 0. */
union {
grub_uint8_t version;
grub_uint8_t data[1];
} u;
} GRUB_PACKED;
/* The CE entry. This is used to describe the next block where data
can be found. */
struct grub_iso9660_susp_ce
{
struct grub_iso9660_susp_entry entry;
grub_uint32_t blk;
grub_uint32_t blk_be;
grub_uint32_t off;
grub_uint32_t off_be;
grub_uint32_t len;
grub_uint32_t len_be;
} GRUB_PACKED;
PRAGMA_END_PACKED
struct grub_iso9660_data
{
struct grub_iso9660_primary_voldesc voldesc;
grub_disk_t disk;
int rockridge;
int susp_skip;
int joliet;
struct grub_fshelp_node *node;
};
struct grub_fshelp_node
{
struct grub_iso9660_data *data;
grub_size_t have_dirents, alloc_dirents;
int have_symlink;
struct grub_iso9660_dir dirents[8];
char symlink[0];
};
enum
{
FLAG_TYPE_PLAIN = 0,
FLAG_TYPE_DIR = 2,
FLAG_TYPE = 3,
FLAG_MORE_EXTENTS = 0x80
};
static grub_dl_t my_mod;
static grub_err_t
iso9660_to_unixtime (const struct grub_iso9660_date *i, grub_int32_t *nix)
{
struct grub_datetime datetime;
if (! i->year[0] && ! i->year[1]
&& ! i->year[2] && ! i->year[3]
&& ! i->month[0] && ! i->month[1]
&& ! i->day[0] && ! i->day[1]
&& ! i->hour[0] && ! i->hour[1]
&& ! i->minute[0] && ! i->minute[1]
&& ! i->second[0] && ! i->second[1]
&& ! i->hundredth[0] && ! i->hundredth[1])
return grub_error (GRUB_ERR_BAD_NUMBER, "empty date");
datetime.year = (i->year[0] - '0') * 1000 + (i->year[1] - '0') * 100
+ (i->year[2] - '0') * 10 + (i->year[3] - '0');
datetime.month = (i->month[0] - '0') * 10 + (i->month[1] - '0');
datetime.day = (i->day[0] - '0') * 10 + (i->day[1] - '0');
datetime.hour = (i->hour[0] - '0') * 10 + (i->hour[1] - '0');
datetime.minute = (i->minute[0] - '0') * 10 + (i->minute[1] - '0');
datetime.second = (i->second[0] - '0') * 10 + (i->second[1] - '0');
if (!grub_datetime2unixtime (&datetime, nix))
return grub_error (GRUB_ERR_BAD_NUMBER, "incorrect date");
*nix -= i->offset * 60 * 15;
return GRUB_ERR_NONE;
}
static int
iso9660_to_unixtime2 (const struct grub_iso9660_date2 *i, grub_int32_t *nix)
{
struct grub_datetime datetime;
datetime.year = i->year + 1900;
datetime.month = i->month;
datetime.day = i->day;
datetime.hour = i->hour;
datetime.minute = i->minute;
datetime.second = i->second;
if (!grub_datetime2unixtime (&datetime, nix))
return 0;
*nix -= i->offset * 60 * 15;
return 1;
}
static grub_err_t
read_node (grub_fshelp_node_t node, grub_off_t off, grub_size_t len, char *buf)
{
grub_size_t i = 0;
while (len > 0)
{
grub_size_t toread;
grub_err_t err;
while (i < node->have_dirents
&& off >= grub_le_to_cpu32 (node->dirents[i].size))
{
off -= grub_le_to_cpu32 (node->dirents[i].size);
i++;
}
if (i == node->have_dirents)
return grub_error (GRUB_ERR_OUT_OF_RANGE, "read out of range");
toread = grub_le_to_cpu32 (node->dirents[i].size);
if (toread > len)
toread = len;
err = grub_disk_read (node->data->disk,
((grub_disk_addr_t) grub_le_to_cpu32 (node->dirents[i].first_sector)) << GRUB_ISO9660_LOG2_BLKSZ,
off, toread, buf);
if (err)
return err;
len -= toread;
off += toread;
buf += toread;
}
return GRUB_ERR_NONE;
}
/* Iterate over the susp entries, starting with block SUA_BLOCK on the
offset SUA_POS with a size of SUA_SIZE bytes. Hook is called for
every entry. */
static grub_err_t
grub_iso9660_susp_iterate (grub_fshelp_node_t node, grub_off_t off,
grub_ssize_t sua_size,
grub_err_t (*hook)
(struct grub_iso9660_susp_entry *entry, void *hook_arg),
void *hook_arg)
{
char *sua;
struct grub_iso9660_susp_entry *entry;
grub_err_t err;
if (sua_size <= 0)
return GRUB_ERR_NONE;
sua = grub_malloc (sua_size);
if (!sua)
return grub_errno;
/* Load a part of the System Usage Area. */
err = read_node (node, off, sua_size, sua);
if (err)
return err;
for (entry = (struct grub_iso9660_susp_entry *) sua; (char *) entry < (char *) sua + sua_size - 1 && entry->len > 0;
entry = (struct grub_iso9660_susp_entry *)
((char *) entry + entry->len))
{
/* The last entry. */
if (grub_strncmp ((char *) entry->sig, "ST", 2) == 0)
break;
/* Additional entries are stored elsewhere. */
if (grub_strncmp ((char *) entry->sig, "CE", 2) == 0)
{
struct grub_iso9660_susp_ce *ce;
grub_disk_addr_t ce_block;
ce = (struct grub_iso9660_susp_ce *) entry;
sua_size = grub_le_to_cpu32 (ce->len);
off = grub_le_to_cpu32 (ce->off);
ce_block = grub_le_to_cpu32 (ce->blk) << GRUB_ISO9660_LOG2_BLKSZ;
grub_free (sua);
sua = grub_malloc (sua_size);
if (!sua)
return grub_errno;
/* Load a part of the System Usage Area. */
err = grub_disk_read (node->data->disk, ce_block, off,
sua_size, sua);
if (err)
return err;
entry = (struct grub_iso9660_susp_entry *) sua;
}
if (hook (entry, hook_arg))
{
grub_free (sua);
return 0;
}
}
grub_free (sua);
return 0;
}
static char *
grub_iso9660_convert_string (grub_uint8_t *us, int len)
{
char *p;
int i;
grub_uint16_t t[MAX_NAMELEN / 2 + 1];
p = grub_malloc (len * GRUB_MAX_UTF8_PER_UTF16 + 1);
if (! p)
return NULL;
for (i=0; i<len; i++)
t[i] = grub_be_to_cpu16 (grub_get_unaligned16 (us + 2 * i));
*grub_utf16_to_utf8 ((grub_uint8_t *) p, t, len) = '\0';
return p;
}
static grub_err_t
susp_iterate_set_rockridge (struct grub_iso9660_susp_entry *susp_entry,
void *_data)
{
struct grub_iso9660_data *data = _data;
/* The "ER" entry is used to detect extensions. The
`IEEE_P1285' extension means Rock ridge. */
if (grub_strncmp ((char *) susp_entry->sig, "ER", 2) == 0)
{
data->rockridge = 1;
return 1;
}
return 0;
}
static grub_err_t
set_rockridge (struct grub_iso9660_data *data)
{
int sua_pos;
int sua_size;
char *sua;
struct grub_iso9660_dir rootdir;
struct grub_iso9660_susp_entry *entry;
data->rockridge = 0;
/* Read the system use area and test it to see if SUSP is
supported. */
if (grub_disk_read (data->disk,
(grub_le_to_cpu32 (data->voldesc.rootdir.first_sector)
<< GRUB_ISO9660_LOG2_BLKSZ), 0,
sizeof (rootdir), (char *) &rootdir))
return grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
sua_pos = (sizeof (rootdir) + rootdir.namelen
+ (rootdir.namelen % 2) - 1);
sua_size = rootdir.len - sua_pos;
if (!sua_size)
return GRUB_ERR_NONE;
sua = grub_malloc (sua_size);
if (! sua)
return grub_errno;
if (grub_disk_read (data->disk,
(grub_le_to_cpu32 (data->voldesc.rootdir.first_sector)
<< GRUB_ISO9660_LOG2_BLKSZ), sua_pos,
sua_size, sua))
{
grub_free (sua);
return grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
}
entry = (struct grub_iso9660_susp_entry *) sua;
/* Test if the SUSP protocol is used on this filesystem. */
if (grub_strncmp ((char *) entry->sig, "SP", 2) == 0)
{
struct grub_fshelp_node rootnode;
rootnode.data = data;
rootnode.alloc_dirents = ARRAY_SIZE (rootnode.dirents);
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* The 2nd data byte stored how many bytes are skipped every time
to get to the SUA (System Usage Area). */
data->susp_skip = entry->u.data[1 + 2];
entry = (struct grub_iso9660_susp_entry *) ((char *) entry + entry->len);
/* Iterate over the entries in the SUA area to detect
extensions. */
if (grub_iso9660_susp_iterate (&rootnode,
sua_pos, sua_size, susp_iterate_set_rockridge,
data))
{
grub_free (sua);
return grub_errno;
}
}
grub_free (sua);
return GRUB_ERR_NONE;
}
static struct grub_iso9660_data *
grub_iso9660_mount (grub_disk_t disk)
{
struct grub_iso9660_data *data = 0;
struct grub_iso9660_primary_voldesc voldesc;
int block;
data = grub_zalloc (sizeof (struct grub_iso9660_data));
if (! data)
return 0;
data->disk = disk;
block = 16;
do
{
int copy_voldesc = 0;
/* Read the superblock. */
if (grub_disk_read (disk, block << GRUB_ISO9660_LOG2_BLKSZ, 0,
sizeof (struct grub_iso9660_primary_voldesc),
(char *) &voldesc))
{
grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
goto fail;
}
if (grub_strncmp ((char *) voldesc.voldesc.magic, "CD001", 5) != 0)
{
grub_error (GRUB_ERR_BAD_FS, "not a ISO9660 filesystem");
goto fail;
}
if (voldesc.voldesc.type == GRUB_ISO9660_VOLDESC_PRIMARY)
copy_voldesc = 1;
else if (!data->rockridge
&& (voldesc.voldesc.type == GRUB_ISO9660_VOLDESC_SUPP)
&& (voldesc.escape[0] == 0x25) && (voldesc.escape[1] == 0x2f)
&&
((voldesc.escape[2] == 0x40) || /* UCS-2 Level 1. */
(voldesc.escape[2] == 0x43) || /* UCS-2 Level 2. */
(voldesc.escape[2] == 0x45))) /* UCS-2 Level 3. */
{
copy_voldesc = 1;
data->joliet = 1;
}
if (copy_voldesc)
{
grub_memcpy((char *) &data->voldesc, (char *) &voldesc,
sizeof (struct grub_iso9660_primary_voldesc));
if (set_rockridge (data))
goto fail;
}
block++;
} while (voldesc.voldesc.type != GRUB_ISO9660_VOLDESC_END);
return data;
fail:
grub_free (data);
return 0;
}
static char *
grub_iso9660_read_symlink (grub_fshelp_node_t node)
{
return node->have_symlink
? grub_strdup (node->symlink
+ (node->have_dirents) * sizeof (node->dirents[0])
- sizeof (node->dirents)) : grub_strdup ("");
}
static grub_off_t
get_node_size (grub_fshelp_node_t node)
{
grub_off_t ret = 0;
grub_size_t i;
for (i = 0; i < node->have_dirents; i++)
ret += grub_le_to_cpu32 (node->dirents[i].size);
return ret;
}
struct iterate_dir_ctx
{
char *filename;
int filename_alloc;
enum grub_fshelp_filetype type;
char *symlink;
int was_continue;
};
/* Extend the symlink. */
static void
add_part (struct iterate_dir_ctx *ctx,
const char *part,
int len2)
{
int size = ctx->symlink ? grub_strlen (ctx->symlink) : 0;
ctx->symlink = grub_realloc (ctx->symlink, size + len2 + 1);
if (! ctx->symlink)
return;
grub_memcpy (ctx->symlink + size, part, len2);
ctx->symlink[size + len2] = 0;
}
static grub_err_t
susp_iterate_dir (struct grub_iso9660_susp_entry *entry,
void *_ctx)
{
struct iterate_dir_ctx *ctx = _ctx;
/* The filename in the rock ridge entry. */
if (grub_strncmp ("NM", (char *) entry->sig, 2) == 0)
{
/* The flags are stored at the data position 0, here the
filename type is stored. */
/* FIXME: Fix this slightly improper cast. */
if (entry->u.data[1 + 0] & GRUB_ISO9660_RR_DOT)
ctx->filename = (char *) ".";
else if (entry->u.data[1 + 0] & GRUB_ISO9660_RR_DOTDOT)
ctx->filename = (char *) "..";
else if (entry->len >= 5)
{
grub_size_t off = 0, csize = 1;
char *old;
csize = entry->len - 5;
old = ctx->filename;
if (ctx->filename_alloc)
{
off = grub_strlen (ctx->filename);
ctx->filename = grub_realloc (ctx->filename, csize + off + 1);
}
else
{
off = 0;
ctx->filename = grub_zalloc (csize + 1);
}
if (!ctx->filename)
{
ctx->filename = old;
return grub_errno;
}
ctx->filename_alloc = 1;
grub_memcpy (ctx->filename + off, (char *) &entry->u.data[1 + 1], csize);
ctx->filename[off + csize] = '\0';
}
}
/* The mode information (st_mode). */
else if (grub_strncmp ((char *) entry->sig, "PX", 2) == 0)
{
/* At position 0 of the PX record the st_mode information is
stored (little-endian). */
grub_uint32_t mode = ((entry->u.data[1 + 0] + (entry->u.data[1 + 1] << 8))
& GRUB_ISO9660_FSTYPE_MASK);
switch (mode)
{
case GRUB_ISO9660_FSTYPE_DIR:
ctx->type = GRUB_FSHELP_DIR;
break;
case GRUB_ISO9660_FSTYPE_REG:
ctx->type = GRUB_FSHELP_REG;
break;
case GRUB_ISO9660_FSTYPE_SYMLINK:
ctx->type = GRUB_FSHELP_SYMLINK;
break;
default:
ctx->type = GRUB_FSHELP_UNKNOWN;
}
}
else if (grub_strncmp ("SL", (char *) entry->sig, 2) == 0)
{
unsigned int pos = 1;
/* The symlink is not stored as a POSIX symlink, translate it. */
while (pos + sizeof (*entry) < entry->len)
{
/* The current position is the `Component Flag'. */
switch (entry->u.data[1 + pos] & 30)
{
case 0:
{
/* The data on pos + 2 is the actual data, pos + 1
is the length. Both are part of the `Component
Record'. */
if (ctx->symlink && !ctx->was_continue)
add_part (ctx, "/", 1);
add_part (ctx, (char *) &entry->u.data[1 + pos + 2],
entry->u.data[1 + pos + 1]);
ctx->was_continue = (entry->u.data[1 + pos] & 1);
break;
}
case 2:
add_part (ctx, "./", 2);
break;
case 4:
add_part (ctx, "../", 3);
break;
case 8:
add_part (ctx, "/", 1);
break;
}
/* In pos + 1 the length of the `Component Record' is
stored. */
pos += entry->u.data[1 + pos + 1] + 2;
}
/* Check if `grub_realloc' failed. */
if (grub_errno)
return grub_errno;
}
return 0;
}
static int
grub_iso9660_iterate_dir (grub_fshelp_node_t dir,
grub_fshelp_iterate_dir_hook_t hook, void *hook_data)
{
struct grub_iso9660_dir dirent;
grub_off_t offset = 0;
grub_off_t len;
struct iterate_dir_ctx ctx;
len = get_node_size (dir);
for (; offset < len; offset += dirent.len)
{
ctx.symlink = 0;
ctx.was_continue = 0;
if (read_node (dir, offset, sizeof (dirent), (char *) &dirent))
return 0;
/* The end of the block, skip to the next one. */
if (!dirent.len)
{
offset = (offset / GRUB_ISO9660_BLKSZ + 1) * GRUB_ISO9660_BLKSZ;
continue;
}
{
char name[MAX_NAMELEN + 1];
int nameoffset = offset + sizeof (dirent);
struct grub_fshelp_node *node;
int sua_off = (sizeof (dirent) + dirent.namelen + 1
- (dirent.namelen % 2));
int sua_size = dirent.len - sua_off;
sua_off += offset + dir->data->susp_skip;
ctx.filename = 0;
ctx.filename_alloc = 0;
ctx.type = GRUB_FSHELP_UNKNOWN;
if (dir->data->rockridge
&& grub_iso9660_susp_iterate (dir, sua_off, sua_size,
susp_iterate_dir, &ctx))
return 0;
/* Read the name. */
if (read_node (dir, nameoffset, dirent.namelen, (char *) name))
return 0;
node = grub_malloc (sizeof (struct grub_fshelp_node));
if (!node)
return 0;
node->alloc_dirents = ARRAY_SIZE (node->dirents);
node->have_dirents = 1;
/* Setup a new node. */
node->data = dir->data;
node->have_symlink = 0;
/* If the filetype was not stored using rockridge, use
whatever is stored in the iso9660 filesystem. */
if (ctx.type == GRUB_FSHELP_UNKNOWN)
{
if ((dirent.flags & FLAG_TYPE) == FLAG_TYPE_DIR)
ctx.type = GRUB_FSHELP_DIR;
else
ctx.type = GRUB_FSHELP_REG;
}
/* . and .. */
if (!ctx.filename && dirent.namelen == 1 && name[0] == 0)
ctx.filename = (char *) ".";
if (!ctx.filename && dirent.namelen == 1 && name[0] == 1)
ctx.filename = (char *) "..";
/* The filename was not stored in a rock ridge entry. Read it
from the iso9660 filesystem. */
if (!dir->data->joliet && !ctx.filename)
{
char *ptr;
name[dirent.namelen] = '\0';
ctx.filename = grub_strrchr (name, ';');
if (ctx.filename)
*ctx.filename = '\0';
/* ISO9660 names are not case-preserving. */
ctx.type |= GRUB_FSHELP_CASE_INSENSITIVE;
for (ptr = name; *ptr; ptr++)
*ptr = grub_tolower (*ptr);
if (ptr != name && *(ptr - 1) == '.')
*(ptr - 1) = 0;
ctx.filename = name;
}
if (dir->data->joliet && !ctx.filename)
{
char *semicolon;
ctx.filename = grub_iso9660_convert_string
((grub_uint8_t *) name, dirent.namelen >> 1);
semicolon = grub_strrchr (ctx.filename, ';');
if (semicolon)
*semicolon = '\0';
ctx.filename_alloc = 1;
}
node->dirents[0] = dirent;
while (dirent.flags & FLAG_MORE_EXTENTS)
{
offset += dirent.len;
if (read_node (dir, offset, sizeof (dirent), (char *) &dirent))
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
if (node->have_dirents >= node->alloc_dirents)
{
struct grub_fshelp_node *new_node;
node->alloc_dirents *= 2;
new_node = grub_realloc (node,
sizeof (struct grub_fshelp_node)
+ ((node->alloc_dirents
- ARRAY_SIZE (node->dirents))
* sizeof (node->dirents[0])));
if (!new_node)
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
node = new_node;
}
node->dirents[node->have_dirents++] = dirent;
}
if (ctx.symlink)
{
if ((node->alloc_dirents - node->have_dirents)
* sizeof (node->dirents[0]) < grub_strlen (ctx.symlink) + 1)
{
struct grub_fshelp_node *new_node;
new_node = grub_realloc (node,
sizeof (struct grub_fshelp_node)
+ ((node->alloc_dirents
- ARRAY_SIZE (node->dirents))
* sizeof (node->dirents[0]))
+ grub_strlen (ctx.symlink) + 1);
if (!new_node)
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
grub_free (node);
return 0;
}
node = new_node;
}
node->have_symlink = 1;
grub_strcpy (node->symlink
+ node->have_dirents * sizeof (node->dirents[0])
- sizeof (node->dirents), ctx.symlink);
grub_free (ctx.symlink);
ctx.symlink = 0;
ctx.was_continue = 0;
}
if (hook (ctx.filename, ctx.type, node, hook_data))
{
if (ctx.filename_alloc)
grub_free (ctx.filename);
return 1;
}
if (ctx.filename_alloc)
grub_free (ctx.filename);
}
}
return 0;
}
/* Context for grub_iso9660_dir. */
struct grub_iso9660_dir_ctx
{
grub_fs_dir_hook_t hook;
void *hook_data;
};
/* Helper for grub_iso9660_dir. */
static int
grub_iso9660_dir_iter (const char *filename,
enum grub_fshelp_filetype filetype,
grub_fshelp_node_t node, void *data)
{
struct grub_iso9660_dir_ctx *ctx = data;
struct grub_dirhook_info info;
grub_memset (&info, 0, sizeof (info));
info.dir = ((filetype & GRUB_FSHELP_TYPE_MASK) == GRUB_FSHELP_DIR);
info.mtimeset = !!iso9660_to_unixtime2 (&node->dirents[0].mtime, &info.mtime);
grub_free (node);
return ctx->hook (filename, &info, ctx->hook_data);
}
static grub_err_t
grub_iso9660_dir (grub_device_t device, const char *path,
grub_fs_dir_hook_t hook, void *hook_data)
{
struct grub_iso9660_dir_ctx ctx = { hook, hook_data };
struct grub_iso9660_data *data = 0;
struct grub_fshelp_node rootnode;
struct grub_fshelp_node *foundnode;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (device->disk);
if (! data)
goto fail;
rootnode.data = data;
rootnode.alloc_dirents = 0;
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* Use the fshelp function to traverse the path. */
if (grub_fshelp_find_file (path, &rootnode,
&foundnode,
grub_iso9660_iterate_dir,
grub_iso9660_read_symlink,
GRUB_FSHELP_DIR))
goto fail;
/* List the files in the directory. */
grub_iso9660_iterate_dir (foundnode, grub_iso9660_dir_iter, &ctx);
if (foundnode != &rootnode)
grub_free (foundnode);
fail:
grub_free (data);
grub_dl_unref (my_mod);
return grub_errno;
}
/* Open a file named NAME and initialize FILE. */
static grub_err_t
grub_iso9660_open (struct grub_file *file, const char *name)
{
struct grub_iso9660_data *data;
struct grub_fshelp_node rootnode;
struct grub_fshelp_node *foundnode;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (file->device->disk);
if (!data)
goto fail;
rootnode.data = data;
rootnode.alloc_dirents = 0;
rootnode.have_dirents = 1;
rootnode.have_symlink = 0;
rootnode.dirents[0] = data->voldesc.rootdir;
/* Use the fshelp function to traverse the path. */
if (grub_fshelp_find_file (name, &rootnode,
&foundnode,
grub_iso9660_iterate_dir,
grub_iso9660_read_symlink,
GRUB_FSHELP_REG))
goto fail;
data->node = foundnode;
file->data = data;
file->size = get_node_size (foundnode);
file->offset = 0;
return 0;
fail:
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
static grub_ssize_t
grub_iso9660_read (grub_file_t file, char *buf, grub_size_t len)
{
struct grub_iso9660_data *data =
(struct grub_iso9660_data *) file->data;
grub_err_t err;
/* XXX: The file is stored in as a single extent. */
data->disk->read_hook = file->read_hook;
data->disk->read_hook_data = file->read_hook_data;
err = read_node (data->node, file->offset, len, buf);
data->disk->read_hook = NULL;
if (err || grub_errno)
return -1;
return len;
}
static grub_err_t
grub_iso9660_close (grub_file_t file)
{
struct grub_iso9660_data *data =
(struct grub_iso9660_data *) file->data;
grub_free (data->node);
grub_free (data);
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_iso9660_label (grub_device_t device, char **label)
{
struct grub_iso9660_data *data;
data = grub_iso9660_mount (device->disk);
if (data)
{
if (data->joliet)
*label = grub_iso9660_convert_string (data->voldesc.volname, 16);
else
*label = grub_strndup ((char *) data->voldesc.volname, 32);
if (*label)
{
char *ptr;
for (ptr = *label; *ptr;ptr++);
ptr--;
while (ptr >= *label && *ptr == ' ')
*ptr-- = 0;
}
grub_free (data);
}
else
*label = 0;
return grub_errno;
}
static grub_err_t
grub_iso9660_uuid (grub_device_t device, char **uuid)
{
struct grub_iso9660_data *data;
grub_disk_t disk = device->disk;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (disk);
if (data)
{
if (! data->voldesc.modified.year[0] && ! data->voldesc.modified.year[1]
&& ! data->voldesc.modified.year[2] && ! data->voldesc.modified.year[3]
&& ! data->voldesc.modified.month[0] && ! data->voldesc.modified.month[1]
&& ! data->voldesc.modified.day[0] && ! data->voldesc.modified.day[1]
&& ! data->voldesc.modified.hour[0] && ! data->voldesc.modified.hour[1]
&& ! data->voldesc.modified.minute[0] && ! data->voldesc.modified.minute[1]
&& ! data->voldesc.modified.second[0] && ! data->voldesc.modified.second[1]
&& ! data->voldesc.modified.hundredth[0] && ! data->voldesc.modified.hundredth[1])
{
grub_error (GRUB_ERR_BAD_NUMBER, "no creation date in filesystem to generate UUID");
*uuid = NULL;
}
else
{
*uuid = grub_xasprintf ("%c%c%c%c-%c%c-%c%c-%c%c-%c%c-%c%c-%c%c",
data->voldesc.modified.year[0],
data->voldesc.modified.year[1],
data->voldesc.modified.year[2],
data->voldesc.modified.year[3],
data->voldesc.modified.month[0],
data->voldesc.modified.month[1],
data->voldesc.modified.day[0],
data->voldesc.modified.day[1],
data->voldesc.modified.hour[0],
data->voldesc.modified.hour[1],
data->voldesc.modified.minute[0],
data->voldesc.modified.minute[1],
data->voldesc.modified.second[0],
data->voldesc.modified.second[1],
data->voldesc.modified.hundredth[0],
data->voldesc.modified.hundredth[1]);
}
}
else
*uuid = NULL;
grub_dl_unref (my_mod);
grub_free (data);
return grub_errno;
}
/* Get writing time of filesystem. */
static grub_err_t
grub_iso9660_mtime (grub_device_t device, grub_int32_t *timebuf)
{
struct grub_iso9660_data *data;
grub_disk_t disk = device->disk;
grub_err_t err;
grub_dl_ref (my_mod);
data = grub_iso9660_mount (disk);
if (!data)
{
grub_dl_unref (my_mod);
return grub_errno;
}
err = iso9660_to_unixtime (&data->voldesc.modified, timebuf);
grub_dl_unref (my_mod);
grub_free (data);
return err;
}
static struct grub_fs grub_iso9660_fs =
{
.name = "iso9660",
.fs_dir = grub_iso9660_dir,
.fs_open = grub_iso9660_open,
.fs_read = grub_iso9660_read,
.fs_close = grub_iso9660_close,
.fs_label = grub_iso9660_label,
.fs_uuid = grub_iso9660_uuid,
.fs_mtime = grub_iso9660_mtime,
#ifdef GRUB_UTIL
.reserved_first_sector = 1,
.blocklist_install = 1,
#endif
.next = 0
};
GRUB_MOD_INIT(iso9660)
{
grub_fs_register (&grub_iso9660_fs);
my_mod = mod;
}
GRUB_MOD_FINI(iso9660)
{
grub_fs_unregister (&grub_iso9660_fs);
}
EDK2/efiffs/org/src/file.c 0 → 100644
View file @ 5d0fe69b
/* file.c - SimpleFileIo Interface */
/*
* Copyright © 2014-2017 Pete Batard <pete@akeo.ie>
* Based on iPXE's efi_driver.c and efi_file.c:
* Copyright © 2011,2013 Michael Brown <mbrown@fensystems.co.uk>.
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "driver.h"
/**
* Get EFI file name (for debugging)
*
* @v file EFI file
* @ret Name Name
*/
static const CHAR16 *
FileName(EFI_GRUB_FILE *File)
{
EFI_STATUS Status;
static CHAR16 Path[MAX_PATH];
Status = Utf8ToUtf16NoAlloc(File->path, Path, sizeof(Path));
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not convert filename to UTF16");
return NULL;
}
return Path;
}
/* Simple hook to populate the timestamp and directory flag when opening a file */
static INT32
InfoHook(const CHAR8 *name, const GRUB_DIRHOOK_INFO *Info, VOID *Data)
{
EFI_GRUB_FILE *File = (EFI_GRUB_FILE *) Data;
/* Look for a specific file */
if (strcmpa(name, File->basename) != 0)
return 0;
File->IsDir = (BOOLEAN) (Info->Dir);
if (Info->MtimeSet)
File->Mtime = Info->Mtime;
return 0;
}
/**
* Open file
*
* @v This File handle
* @ret new New file handle
* @v Name File name
* @v Mode File mode
* @v Attributes File attributes (for newly-created files)
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileOpen(EFI_FILE_HANDLE This, EFI_FILE_HANDLE *New,
CHAR16 *Name, UINT64 Mode, UINT64 Attributes)
{
EFI_STATUS Status;
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
EFI_GRUB_FILE *NewFile;
// TODO: Use dynamic buffers?
char path[MAX_PATH], clean_path[MAX_PATH], *dirname;
INTN i, len;
BOOLEAN AbsolutePath = (*Name == L'\\');
PrintInfo(L"Open(" PERCENT_P L"%s, \"%s\")\n", (UINTN) This,
IS_ROOT(File)?L" <ROOT>":L"", Name);
/* Fail unless opening read-only */
if (Mode != EFI_FILE_MODE_READ) {
PrintWarning(L"File '%s' can only be opened in read-only mode\n", Name);
return EFI_WRITE_PROTECTED;
}
/* Additional failures */
if ((StrCmp(Name, L"..") == 0) && IS_ROOT(File)) {
PrintInfo(L"Trying to open <ROOT>'s parent\n");
return EFI_NOT_FOUND;
}
/* See if we're trying to reopen current (which the EFI Shell insists on doing) */
if ((*Name == 0) || (StrCmp(Name, L".") == 0)) {
PrintInfo(L" Reopening %s\n", IS_ROOT(File)?L"<ROOT>":FileName(File));
File->RefCount++;
*New = This;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
/* If we have an absolute path, don't bother completing with the parent */
if (AbsolutePath) {
len = 0;
} else {
strcpya(path, File->path);
len = strlena(path);
/* Add delimiter if needed */
if ((len == 0) || (path[len-1] != '/'))
path[len++] = '/';
}
/* Copy the rest of the path (converted to UTF-8) */
Status = Utf16ToUtf8NoAlloc(Name, &path[len], sizeof(path) - len);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not convert path to UTF-8");
return Status;
}
/* Convert the delimiters */
for (i = strlena(path) - 1 ; i >= len; i--) {
if (path[i] == '\\')
path[i] = '/';
}
/* We only want to handle with absolute paths */
clean_path[0] = '/';
/* Find out if we're dealing with root by removing the junk */
CopyPathRelative(&clean_path[1], path, MAX_PATH - 1);
if (clean_path[1] == 0) {
/* We're dealing with the root */
PrintInfo(L" Reopening <ROOT>\n");
*New = &File->FileSystem->RootFile->EfiFile;
/* Must make sure that DirIndex is reset too (NB: no concurrent access!) */
File->FileSystem->RootFile->DirIndex = 0;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
// TODO: eventually we should seek for already opened files and increase RefCount
/* Allocate and initialise an instance of a file */
Status = GrubCreateFile(&NewFile, File->FileSystem);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not instantiate file");
return Status;
}
NewFile->path = AllocatePool(strlena(clean_path)+1);
if (NewFile->path == NULL) {
GrubDestroyFile(NewFile);
PrintError(L"Could not instantiate path\n");
return EFI_OUT_OF_RESOURCES;
}
strcpya(NewFile->path, clean_path);
/* Isolate the basename and dirname */
for (i = strlena(clean_path) - 1; i >= 0; i--) {
if (clean_path[i] == '/') {
clean_path[i] = 0;
break;
}
}
dirname = (i <= 0) ? "/" : clean_path;
NewFile->basename = &NewFile->path[i+1];
/* Find if we're working with a directory and fill the grub timestamp */
Status = GrubDir(NewFile, dirname, InfoHook, (VOID *) NewFile);
if (EFI_ERROR(Status)) {
if (Status != EFI_NOT_FOUND)
PrintStatusError(Status, L"Could not get file attributes for '%s'", Name);
FreePool(NewFile->path);
GrubDestroyFile(NewFile);
return Status;
}
/* Finally we can call on GRUB open() if it's a regular file */
if (!NewFile->IsDir) {
Status = GrubOpen(NewFile);
if (EFI_ERROR(Status)) {
if (Status != EFI_NOT_FOUND)
PrintStatusError(Status, L"Could not open file '%s'", Name);
FreePool(NewFile->path);
GrubDestroyFile(NewFile);
return Status;
}
}
NewFile->RefCount++;
*New = &NewFile->EfiFile;
PrintInfo(L" RET: " PERCENT_P L"\n", (UINTN) *New);
return EFI_SUCCESS;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileOpenEx(EFI_FILE_HANDLE This, EFI_FILE_HANDLE *New, CHAR16 *Name,
UINT64 Mode, UINT64 Attributes, EFI_FILE_IO_TOKEN *Token)
{
return FileOpen(This, New, Name, Mode, Attributes);
}
/**
* Close file
*
* @v This File handle
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileClose(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Close(" PERCENT_P L"|'%s') %s\n", (UINTN) This, FileName(File),
IS_ROOT(File)?L"<ROOT>":L"");
/* Nothing to do it this is the root */
if (IS_ROOT(File))
return EFI_SUCCESS;
if (--File->RefCount == 0) {
/* Close the file if it's a regular one */
if (!File->IsDir)
GrubClose(File);
/* NB: basename points into File->path and does not need to be freed */
if (File->path != NULL)
FreePool(File->path);
GrubDestroyFile(File);
}
return EFI_SUCCESS;
}
/**
* Close and delete file
*
* @v This File handle
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileDelete(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintError(L"Cannot delete '%s'\n", FileName(File));
/* Close file */
FileClose(This);
/* Warn of failure to delete */
return EFI_WARN_DELETE_FAILURE;
}
/* GRUB uses a callback for each directory entry, whereas EFI uses repeated
* firmware generated calls to FileReadDir() to get the info for each entry,
* so we have to reconcile the twos. For now, we'll re-issue a call to GRUB
* dir(), and run through all the entries (to find the one we
* are interested in) multiple times. Maybe later we'll try to optimize this
* by building a one-off chained list of entries that we can parse...
*/
static INT32
DirHook(const CHAR8 *name, const GRUB_DIRHOOK_INFO *DirInfo, VOID *Data)
{
EFI_STATUS Status;
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
INT64 *Index = (INT64 *) &Info->FileSize;
CHAR8 *filename = (CHAR8 *) (UINTN) Info->PhysicalSize;
EFI_TIME Time = { 1970, 01, 01, 00, 00, 00, 0, 0, 0, 0, 0};
// Eliminate '.' or '..'
if ((name[0] == '.') && ((name[1] == 0) || ((name[1] == '.') && (name[2] == 0))))
return 0;
/* Ignore any entry that doesn't match our index */
if ((*Index)-- != 0)
return 0;
strcpya(filename, name);
Status = Utf8ToUtf16NoAlloc(filename, Info->FileName, (INTN)(Info->Size - sizeof(EFI_FILE_INFO)));
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert directory entry to UTF-8");
return (INT32) Status;
}
/* The Info struct size already accounts for the extra NUL */
Info->Size = sizeof(*Info) + StrLen(Info->FileName) * sizeof(CHAR16);
// Oh, and of course GRUB uses a 32 bit signed mtime value (seriously, wtf guys?!?)
if (DirInfo->MtimeSet)
GrubTimeToEfiTime(DirInfo->Mtime, &Time);
CopyMem(&Info->CreateTime, &Time, sizeof(Time));
CopyMem(&Info->LastAccessTime, &Time, sizeof(Time));
CopyMem(&Info->ModificationTime, &Time, sizeof(Time));
Info->Attribute = EFI_FILE_READ_ONLY;
if (DirInfo->Dir)
Info->Attribute |= EFI_FILE_DIRECTORY;
return 0;
}
/**
* Read directory entry
*
* @v file EFI file
* @v Len Length to read
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS
FileReadDir(EFI_GRUB_FILE *File, UINTN *Len, VOID *Data)
{
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
EFI_STATUS Status;
/* We temporarily repurpose the FileSize as a *signed* entry index */
INT64 *Index = (INT64 *) &Info->FileSize;
/* And PhysicalSize as a pointer to our filename */
CHAR8 **basename = (CHAR8 **) &Info->PhysicalSize;
CHAR8 path[MAX_PATH];
EFI_GRUB_FILE *TmpFile = NULL;
INTN len;
/* Unless we can fit our maximum size, forget it */
if (*Len < MINIMUM_INFO_LENGTH) {
*Len = MINIMUM_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
/* Populate our Info template */
ZeroMem(Data, *Len);
Info->Size = *Len;
*Index = File->DirIndex;
strcpya(path, File->path);
len = strlena(path);
if (path[len-1] != '/')
path[len++] = '/';
*basename = &path[len];
/* Invoke GRUB's directory listing */
Status = GrubDir(File, File->path, DirHook, Data);
if (*Index >= 0) {
/* No more entries */
*Len = 0;
return EFI_SUCCESS;
}
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Directory listing failed");
return Status;
}
/* Our Index/FileSize must be reset */
Info->FileSize = 0;
Info->PhysicalSize = 0;
/* For regular files, we still need to fill the size */
if (!(Info->Attribute & EFI_FILE_DIRECTORY)) {
/* Open the file and read its size */
Status = GrubCreateFile(&TmpFile, File->FileSystem);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Unable to create temporary file");
return Status;
}
TmpFile->path = path;
Status = GrubOpen(TmpFile);
if (EFI_ERROR(Status)) {
// TODO: EFI_NO_MAPPING is returned for links...
PrintStatusError(Status, L"Unable to obtain the size of '%s'", Info->FileName);
/* Non fatal error */
} else {
Info->FileSize = GrubGetFileSize(TmpFile);
Info->PhysicalSize = GrubGetFileSize(TmpFile);
GrubClose(TmpFile);
}
GrubDestroyFile(TmpFile);
}
*Len = (UINTN) Info->Size;
/* Advance to the next entry */
File->DirIndex++;
// PrintInfo(L" Entry[%d]: '%s' %s\n", File->DirIndex-1, Info->FileName,
// (Info->Attribute&EFI_FILE_DIRECTORY)?L"<DIR>":L"");
return EFI_SUCCESS;
}
/**
* Read from file
*
* @v This File handle
* @v Len Length to read
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileRead(EFI_FILE_HANDLE This, UINTN *Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Read(" PERCENT_P L"|'%s', %d) %s\n", (UINTN) This, FileName(File),
*Len, File->IsDir?L"<DIR>":L"");
/* If this is a directory, then fetch the directory entries */
if (File->IsDir)
return FileReadDir(File, Len, Data);
return GrubRead(File, Data, Len);
}
/* Ex version */
static EFI_STATUS EFIAPI
FileReadEx(IN EFI_FILE_PROTOCOL *This, IN OUT EFI_FILE_IO_TOKEN *Token)
{
return FileRead(This, &(Token->BufferSize), Token->Buffer);
}
/**
* Write to file
*
* @v This File handle
* @v Len Length to write
* @v Data Data buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileWrite(EFI_FILE_HANDLE This, UINTN *Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintError(L"Cannot write to '%s'\n", FileName(File));
return EFI_WRITE_PROTECTED;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileWriteEx(IN EFI_FILE_PROTOCOL *This, IN OUT EFI_FILE_IO_TOKEN *Token)
{
return FileWrite(This, &(Token->BufferSize), Token->Buffer);
}
/**
* Set file position
*
* @v This File handle
* @v Position New file position
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileSetPosition(EFI_FILE_HANDLE This, UINT64 Position)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
UINT64 FileSize;
PrintInfo(L"SetPosition(" PERCENT_P L"|'%s', %lld) %s\n", (UINTN) This,
FileName(File), Position, (File->IsDir)?L"<DIR>":L"");
/* If this is a directory, reset the Index to the start */
if (File->IsDir) {
if (Position != 0)
return EFI_INVALID_PARAMETER;
File->DirIndex = 0;
return EFI_SUCCESS;
}
/* Fail if we attempt to seek past the end of the file (since
* we do not support writes).
*/
FileSize = GrubGetFileSize(File);
if (Position > FileSize) {
PrintError(L"'%s': Cannot seek to #%llx of %llx\n",
FileName(File), Position, FileSize);
return EFI_UNSUPPORTED;
}
/* Set position */
GrubSetFileOffset(File, Position);
PrintDebug(L"'%s': Position set to %llx\n",
FileName(File), Position);
return EFI_SUCCESS;
}
/**
* Get file position
*
* @v This File handle
* @ret Position New file position
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileGetPosition(EFI_FILE_HANDLE This, UINT64 *Position)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"GetPosition(" PERCENT_P L"|'%s', %lld)\n", (UINTN) This, FileName(File));
if (File->IsDir)
*Position = File->DirIndex;
else
*Position = GrubGetFileOffset(File);
return EFI_SUCCESS;
}
/**
* Get file information
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileGetInfo(EFI_FILE_HANDLE This, EFI_GUID *Type, UINTN *Len, VOID *Data)
{
EFI_STATUS Status;
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
EFI_FILE_SYSTEM_INFO *FSInfo = (EFI_FILE_SYSTEM_INFO *) Data;
EFI_FILE_INFO *Info = (EFI_FILE_INFO *) Data;
EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *VLInfo = (EFI_FILE_SYSTEM_VOLUME_LABEL_INFO *)Data;
EFI_TIME Time;
CHAR8* label;
UINTN tmpLen;
PrintInfo(L"GetInfo(" PERCENT_P L"|'%s', %d) %s\n", (UINTN) This,
FileName(File), *Len, File->IsDir?L"<DIR>":L"");
/* Determine information to return */
if (CompareMem(Type, &gEfiFileInfoGuid, sizeof(*Type)) == 0) {
/* Fill file information */
PrintExtra(L"Get regular file information\n");
if (*Len < MINIMUM_INFO_LENGTH) {
*Len = MINIMUM_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
ZeroMem(Data, sizeof(EFI_FILE_INFO));
Info->Attribute = EFI_FILE_READ_ONLY;
GrubTimeToEfiTime(File->Mtime, &Time);
CopyMem(&Info->CreateTime, &Time, sizeof(Time));
CopyMem(&Info->LastAccessTime, &Time, sizeof(Time));
CopyMem(&Info->ModificationTime, &Time, sizeof(Time));
if (File->IsDir) {
Info->Attribute |= EFI_FILE_DIRECTORY;
} else {
Info->FileSize = GrubGetFileSize(File);
Info->PhysicalSize = GrubGetFileSize(File);
}
tmpLen = (UINTN)(Info->Size - sizeof(EFI_FILE_INFO) - 1);
Status = Utf8ToUtf16NoAllocUpdateLen(File->basename, Info->FileName, &tmpLen);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert basename to UTF-16");
return Status;
}
/* The Info struct size already accounts for the extra NUL */
Info->Size = sizeof(EFI_FILE_INFO) + tmpLen;
*Len = (INTN)Info->Size;
return EFI_SUCCESS;
} else if (CompareMem(Type, &gEfiFileSystemInfoGuid, sizeof(*Type)) == 0) {
/* Get file system information */
PrintExtra(L"Get file system information\n");
if (*Len < MINIMUM_FS_INFO_LENGTH) {
*Len = MINIMUM_FS_INFO_LENGTH;
return EFI_BUFFER_TOO_SMALL;
}
ZeroMem(Data, sizeof(EFI_FILE_INFO));
FSInfo->Size = *Len;
FSInfo->ReadOnly = 1;
/* NB: This should really be cluster size, but we don't have access to that */
if (File->FileSystem->BlockIo2 != NULL) {
FSInfo->BlockSize = File->FileSystem->BlockIo2->Media->BlockSize;
} else {
FSInfo->BlockSize = File->FileSystem->BlockIo->Media->BlockSize;
}
if (FSInfo->BlockSize == 0) {
PrintWarning(L"Corrected Media BlockSize\n");
FSInfo->BlockSize = 512;
}
if (File->FileSystem->BlockIo2 != NULL) {
FSInfo->VolumeSize = (File->FileSystem->BlockIo2->Media->LastBlock + 1) *
FSInfo->BlockSize;
} else {
FSInfo->VolumeSize = (File->FileSystem->BlockIo->Media->LastBlock + 1) *
FSInfo->BlockSize;
}
/* No idea if we can easily get this for GRUB, and the device is RO anyway */
FSInfo->FreeSpace = 0;
Status = GrubLabel(File, &label);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not read disk label");
FSInfo->VolumeLabel[0] = 0;
*Len = sizeof(EFI_FILE_SYSTEM_INFO);
} else {
tmpLen = (INTN)(FSInfo->Size - sizeof(EFI_FILE_SYSTEM_INFO) - 1);
Status = Utf8ToUtf16NoAllocUpdateLen(label, FSInfo->VolumeLabel, &tmpLen);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert label to UTF-16");
return Status;
}
FSInfo->Size = sizeof(EFI_FILE_SYSTEM_INFO) - 1 + tmpLen;
*Len = (INTN)FSInfo->Size;
}
return EFI_SUCCESS;
} else if (CompareMem(Type, &gEfiFileSystemVolumeLabelInfoIdGuid, sizeof(*Type)) == 0) {
/* Get the volume label */
Status = GrubLabel(File, &label);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not read disk label");
}
else {
Status = Utf8ToUtf16NoAllocUpdateLen(label, VLInfo->VolumeLabel, Len);
if (EFI_ERROR(Status)) {
if (Status != EFI_BUFFER_TOO_SMALL)
PrintStatusError(Status, L"Could not convert label to UTF-16");
return Status;
}
}
return EFI_SUCCESS;
} else {
Print(L"'%s': Cannot get information of type ", FileName(File));
PrintGuid(Type);
Print(L"\n");
return EFI_UNSUPPORTED;
}
}
/**
* Set file information
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileSetInfo(EFI_FILE_HANDLE This, EFI_GUID *Type, UINTN Len, VOID *Data)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
Print(L"Cannot set information of type ");
PrintGuid(Type);
Print(L" for file '%s'\n", FileName(File));
return EFI_WRITE_PROTECTED;
}
/**
* Flush file modified data
*
* @v This File handle
* @v Type Type of information
* @v Len Buffer size
* @v Data Buffer
* @ret Status EFI status code
*/
static EFI_STATUS EFIAPI
FileFlush(EFI_FILE_HANDLE This)
{
EFI_GRUB_FILE *File = _CR(This, EFI_GRUB_FILE, EfiFile);
PrintInfo(L"Flush(" PERCENT_P L"|'%s')\n", (UINTN) This, FileName(File));
return EFI_SUCCESS;
}
/* Ex version */
static EFI_STATUS EFIAPI
FileFlushEx(EFI_FILE_HANDLE This, EFI_FILE_IO_TOKEN *Token)
{
return FileFlush(This);
}
/**
* Open root directory
*
* @v This EFI simple file system
* @ret Root File handle for the root directory
* @ret Status EFI status code
*/
EFI_STATUS EFIAPI
FileOpenVolume(EFI_SIMPLE_FILE_SYSTEM_PROTOCOL *This, EFI_FILE_HANDLE *Root)
{
EFI_FS *FSInstance = _CR(This, EFI_FS, FileIoInterface);
PrintInfo(L"OpenVolume\n");
*Root = &FSInstance->RootFile->EfiFile;
return EFI_SUCCESS;
}
/**
* Install the EFI simple file system protocol
* If successful this call instantiates a new FS#: drive, that is made
* available on the next 'map -r'. Note that all this call does is add
* the FS protocol. OpenVolume won't be called until a process tries
* to access a file or the root directory on the volume.
*/
EFI_STATUS
FSInstall(EFI_FS *This, EFI_HANDLE ControllerHandle)
{
EFI_STATUS Status;
/* Check if it's a filesystem we can handle */
if (!GrubFSProbe(This))
return EFI_UNSUPPORTED;
PrintInfo(L"FSInstall: %s\n", This->DevicePathString);
/* Initialize the root handle */
Status = GrubCreateFile(&This->RootFile, This);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not create root file");
return Status;
}
/* Setup the EFI part */
This->RootFile->EfiFile.Revision = EFI_FILE_PROTOCOL_REVISION2;
This->RootFile->EfiFile.Open = FileOpen;
This->RootFile->EfiFile.Close = FileClose;
This->RootFile->EfiFile.Delete = FileDelete;
This->RootFile->EfiFile.Read = FileRead;
This->RootFile->EfiFile.Write = FileWrite;
This->RootFile->EfiFile.GetPosition = FileGetPosition;
This->RootFile->EfiFile.SetPosition = FileSetPosition;
This->RootFile->EfiFile.GetInfo = FileGetInfo;
This->RootFile->EfiFile.SetInfo = FileSetInfo;
This->RootFile->EfiFile.Flush = FileFlush;
This->RootFile->EfiFile.OpenEx = FileOpenEx;
This->RootFile->EfiFile.ReadEx = FileReadEx;
This->RootFile->EfiFile.WriteEx = FileWriteEx;
This->RootFile->EfiFile.FlushEx = FileFlushEx;
/* Setup the other attributes */
This->RootFile->path = "/";
This->RootFile->basename = &This->RootFile->path[1];
This->RootFile->IsDir = TRUE;
/* Install the simple file system protocol. */
Status = BS->InstallMultipleProtocolInterfaces(&ControllerHandle,
&gEfiSimpleFileSystemProtocolGuid, &This->FileIoInterface,
NULL);
if (EFI_ERROR(Status)) {
PrintStatusError(Status, L"Could not install simple file system protocol");
return Status;
}
return EFI_SUCCESS;
}
/* Uninstall EFI simple file system protocol */
VOID
FSUninstall(EFI_FS *This, EFI_HANDLE ControllerHandle)
{
PrintInfo(L"FSUninstall: %s\n", This->DevicePathString);
BS->UninstallMultipleProtocolInterfaces(ControllerHandle,
&gEfiSimpleFileSystemProtocolGuid, &This->FileIoInterface,
NULL);
}
EDK2/efiffs/org/src/logging.c 0 → 100644
View file @ 5d0fe69b
/* logging.c - EFI logging */
/*
* Copyright © 2014-2017 Pete Batard <pete@akeo.ie>
*
* 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
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "driver.h"
/* Not defined in gnu-efi yet */
#define SHELL_VARIABLE_GUID { \
0x158def5a, 0xf656, 0x419c, { 0xb0, 0x27, 0x7a, 0x31, 0x92, 0xc0, 0x79, 0xd2 } \
}
extern EFI_GUID gShellVariableGuid;
EFI_GUID ShellVariable = SHELL_VARIABLE_GUID;
static UINTN PrintNone(IN CONST CHAR16 *fmt, ... ) { return 0; }
Print_t PrintError = PrintNone;
Print_t PrintWarning = PrintNone;
Print_t PrintInfo = PrintNone;
Print_t PrintDebug = PrintNone;
Print_t PrintExtra = PrintNone;
Print_t* PrintTable[] = { &PrintError, &PrintWarning, &PrintInfo,
&PrintDebug, &PrintExtra };
/* Global driver verbosity level */
#if !defined(DEFAULT_LOGLEVEL)
#define DEFAULT_LOGLEVEL FS_LOGLEVEL_NONE
#endif
UINTN LogLevel = DEFAULT_LOGLEVEL;
/**
* Print status
*
* @v Status EFI status code
*/
VOID
PrintStatus(EFI_STATUS Status)
{
#if defined(__MAKEWITH_GNUEFI)
CHAR16 StatusString[64];
StatusToString(StatusString, Status);
// Make sure the Status is unsigned 32 bits
Print(L": [%d] %s\n", (Status & 0x7FFFFFFF), StatusString);
#else
Print(L": [%d]\n", (Status & 0x7FFFFFFF));
#endif
}
/*
* You can control the verbosity of the driver output by setting the shell environment
* variable FS_LOGGING to one of the values defined in the FS_LOGLEVEL constants
*/
VOID
SetLogging(VOID)
{
EFI_STATUS Status;
CHAR16 LogVar[4];
UINTN i, LogVarSize = sizeof(LogVar);
Status = RT->GetVariable(L"FS_LOGGING", &ShellVariable, NULL, &LogVarSize, LogVar);
if (Status == EFI_SUCCESS)
LogLevel = Atoi(LogVar);
for (i=0; i<ARRAYSIZE(PrintTable); i++)
*PrintTable[i] = (i < LogLevel)?(Print_t)Print:(Print_t)PrintNone;
PrintExtra(L"LogLevel = %d\n", LogLevel);
}
ExFAT/README.txt deleted 100644 → 0
View file @ 96541797
Please download exfat-1.3.0.zip and mirrors-libfuse-fuse-2.9.9.zip first.
exfat-1.3.0.zip:
https://codeload.github.com/relan/exfat/zip/v1.3.0
mirrors-libfuse-fuse-2.9.9.zip:
https://gitee.com/mirrors/libfuse/repository/archive/fuse-2.9.9.zip
ExFAT/buidexfat.sh
View file @ 5d0fe69b
...@@ -18,14 +18,14 @@ if ! [ -e LIBFUSE ]; then ...@@ -18,14 +18,14 @@ if ! [ -e LIBFUSE ]; then
./buidlibfuse.sh ./buidlibfuse.sh
fi fi
rm -rf EXFAT
rm -f EXFAT/shared/* mkdir -p EXFAT/shared
rm -f EXFAT/static/* mkdir -p EXFAT/static
rm -rf exfat-1.3.0 rm -rf exfat-1.3.0
unzip exfat-1.3.0.zip unzip exfat-1.3.0.zip
sed "/printf.*VERSION/a\ if (access(\"/etc/initrd-release\", F_OK) >= 0) argv[0][0] = '@';" -i exfat-1.3.0/fuse/main.c
cd exfat-1.3.0 cd exfat-1.3.0
autoreconf --install autoreconf --install
...@@ -42,6 +42,8 @@ cd .. ...@@ -42,6 +42,8 @@ cd ..
rm -rf exfat-1.3.0 rm -rf exfat-1.3.0
unzip exfat-1.3.0.zip unzip exfat-1.3.0.zip
sed "/printf.*VERSION/a\ if (access(\"/etc/initrd-release\", F_OK) >= 0) argv[0][0] = '@';" -i exfat-1.3.0/fuse/main.c
cd exfat-1.3.0 cd exfat-1.3.0
autoreconf --install autoreconf --install
......
FUSEISO/build.sh
View file @ 5d0fe69b
...@@ -2,8 +2,7 @@ ...@@ -2,8 +2,7 @@
CUR="$PWD" CUR="$PWD"
#LIBFUSE_DIR=$CUR/LIBFUSE LIBFUSE_DIR=$CUR/LIBFUSE
LIBFUSE_DIR=../ExFAT/LIBFUSE
if uname -a | egrep -q 'x86_64|amd64'; then if uname -a | egrep -q 'x86_64|amd64'; then
name=vtoy_fuse_iso_64 name=vtoy_fuse_iso_64
......
FUSEISO/build_libfuse.sh
View file @ 5d0fe69b
...@@ -15,12 +15,12 @@ rm -rf libfuse ...@@ -15,12 +15,12 @@ rm -rf libfuse
rm -rf $LIBFUSE_DIR rm -rf $LIBFUSE_DIR
# please download https://gitee.com/mirrors/libfuse/repository/archive/fuse-2.9.9.zip # please download https://gitee.com/mirrors/libfuse/repository/archive/fuse-2.9.9.zip
if ! [ -e mirrors-libfuse-fuse-2.9.9.zip ]; then if ! [ -e ../ExFAT/mirrors-libfuse-fuse-2.9.9.zip ]; then
echo "Please download mirrors-libfuse-fuse-2.9.9.zip first" echo "Please download mirrors-libfuse-fuse-2.9.9.zip first"
exit 1 exit 1
fi fi
unzip mirrors-libfuse-fuse-2.9.9.zip unzip ../ExFAT/mirrors-libfuse-fuse-2.9.9.zip
cd libfuse cd libfuse
......
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