From 186f3189a1a06518ec53bda3f5e3b743d583ea2b Mon Sep 17 00:00:00 2001 From: phcoder Date: Mon, 20 Jul 2009 09:48:25 +0000 Subject: [PATCH] 2009-07-20 Vladimir Serbinenko Fix AtheFS support. * fs/afs.c: Fix comments style. (grub_afs_blockrun): Declare as packed. (grub_afs_datastream): Likewise. (grub_afs_bnode): Likewise. (grub_afs_btree): Likewise. (grub_afs_sblock): Likewise. Declare `name' as char. (grub_afs_inode): Declare as packed. Change void *vnode to grub_uint32_t unused. (grub_afs_iterate_dir): Check that key_size is positive. (grub_afs_mount): Don't read superblock twice. (grub_afs_dir): Don't free node in case of errorx grub_fshelp_find_file already handles this. (grub_afs_open): Likewise. --- ChangeLog | 19 +++++++++++++++++++ fs/afs.c | 53 ++++++++++++++++++++++++----------------------------- 2 files changed, 43 insertions(+), 29 deletions(-) diff --git a/ChangeLog b/ChangeLog index 5a2effbd3..374b35f55 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,22 @@ +2009-07-20 Vladimir Serbinenko + + Fix AtheFS support. + + * fs/afs.c: Fix comments style. + (grub_afs_blockrun): Declare as packed. + (grub_afs_datastream): Likewise. + (grub_afs_bnode): Likewise. + (grub_afs_btree): Likewise. + (grub_afs_sblock): Likewise. + Declare `name' as char. + (grub_afs_inode): Declare as packed. + Change void *vnode to grub_uint32_t unused. + (grub_afs_iterate_dir): Check that key_size is positive. + (grub_afs_mount): Don't read superblock twice. + (grub_afs_dir): Don't free node in case of errorx + grub_fshelp_find_file already handles this. + (grub_afs_open): Likewise. + 2009-07-19 Pavel Roskin * Makefile.in: Remove LIBLZO and enable_lzo. diff --git a/fs/afs.c b/fs/afs.c index 832a95c38..41aebb45d 100644 --- a/fs/afs.c +++ b/fs/afs.c @@ -1,7 +1,7 @@ /* afs.c - The native AtheOS file-system. */ /* * GRUB -- GRand Unified Bootloader - * Copyright (C) 2008 Free Software Foundation, Inc. + * Copyright (C) 2008,2009 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 @@ -29,7 +29,7 @@ #define GRUB_AFS_DIRECT_BLOCK_COUNT 12 #define GRUB_AFS_BLOCKS_PER_DI_RUN 4 -#define GRUB_AFS_SBLOCK_MAGIC1 0x41465331 /* AFS1 */ +#define GRUB_AFS_SBLOCK_MAGIC1 0x41465331 /* AFS1. */ #define GRUB_AFS_SBLOCK_MAGIC2 0xdd121031 #define GRUB_AFS_SBLOCK_MAGIC3 0x15b6830e @@ -81,7 +81,7 @@ struct grub_afs_blockrun grub_uint32_t group; grub_uint16_t start; grub_uint16_t len; -}; +} __attribute__ ((packed)); struct grub_afs_datastream { @@ -92,7 +92,7 @@ struct grub_afs_datastream struct grub_afs_blockrun double_indirect; grub_afs_off_t max_double_indirect_range; grub_afs_off_t size; -}; +} __attribute__ ((packed)); struct grub_afs_bnode { @@ -102,7 +102,7 @@ struct grub_afs_bnode grub_uint32_t key_count; grub_uint32_t key_size; char key_data[0]; -}; +} __attribute__ ((packed)); struct grub_afs_btree { @@ -111,7 +111,7 @@ struct grub_afs_btree grub_uint32_t tree_depth; grub_afs_bvalue_t last_node; grub_afs_bvalue_t first_free; -} ; +} __attribute__ ((packed)); struct grub_afs_sblock { @@ -124,8 +124,10 @@ struct grub_afs_sblock grub_afs_off_t used_blocks; grub_uint32_t inode_size; grub_uint32_t magic2; - grub_uint32_t block_per_group; // Number of blocks per allocation group (Max 65536) - grub_uint32_t alloc_group_shift; // Number of bits to shift a group number to get a byte address. + grub_uint32_t block_per_group; /* Number of blocks per allocation + group. (Max 65536) */ + grub_uint32_t alloc_group_shift; /* Number of bits to shift a group + number to get a byte address. */ grub_uint32_t alloc_group_count; grub_uint32_t flags; struct grub_afs_blockrun log_block; @@ -133,12 +135,13 @@ struct grub_afs_sblock grub_uint32_t valid_log_blocks; grub_uint32_t log_size; grub_uint32_t magic3; - struct grub_afs_blockrun root_dir; // Root dir inode. - struct grub_afs_blockrun deleted_files; // Directory containing files scheduled for deletion. - struct grub_afs_blockrun index_dir; // Directory of index files. + struct grub_afs_blockrun root_dir; /* Root dir inode. */ + struct grub_afs_blockrun deleted_files; /* Directory containing files + scheduled for deletion. */ + struct grub_afs_blockrun index_dir; /* Directory of index files. */ grub_uint32_t boot_loader_size; grub_uint32_t pad[7]; -}; +} __attribute__ ((packed)); struct grub_afs_inode { @@ -153,13 +156,13 @@ struct grub_afs_inode grub_afs_bigtime modified_time; struct grub_afs_blockrun parent; struct grub_afs_blockrun attrib_dir; - grub_uint32_t index_type; /* Key data-key only used for index files */ + grub_uint32_t index_type; /* Key data-key only used for index files. */ grub_uint32_t inode_size; - void* vnode; + grub_uint32_t unused; struct grub_afs_datastream stream; grub_uint32_t pad[4]; grub_uint32_t small_data[1]; -}; +} __attribute__ ((packed)); struct grub_fshelp_node { @@ -307,8 +310,8 @@ grub_afs_iterate_dir (grub_fshelp_node_t dir, struct grub_afs_sblock *sb = &dir->data->sblock; int i; - if ((! dir->inode.stream.size) || - ((U32 (sb, dir->inode.mode) & GRUB_AFS_S_IFMT) != GRUB_AFS_S_IFDIR)) + if ((dir->inode.stream.size == 0) + || ((U32 (sb, dir->inode.mode) & GRUB_AFS_S_IFMT) != GRUB_AFS_S_IFDIR)) return 0; grub_afs_read_file (dir, 0, 0, sizeof (head), (char *) &head); @@ -343,7 +346,7 @@ grub_afs_iterate_dir (grub_fshelp_node_t dir, key_start = U16 (sb, (cur_key > 0) ? index[cur_key - 1] : 0); key_size = U16 (sb, index[cur_key]) - key_start; - if (key_size) + if (key_size > 0) { char filename [key_size + 1]; struct grub_fshelp_node *fdiro; @@ -470,14 +473,7 @@ grub_afs_mount (grub_disk_t disk) goto fail; if (! grub_afs_validate_sblock (&data->sblock)) - { - if (grub_disk_read (disk, 1 * 2, 0, sizeof (struct grub_afs_sblock), - &data->sblock)) - goto fail; - - if (! grub_afs_validate_sblock (&data->sblock)) - goto fail; - } + goto fail; data->diropen.data = data; data->inode = &data->diropen.inode; @@ -524,8 +520,6 @@ grub_afs_open (struct grub_file *file, const char *name) return 0; fail: - if (fdiro != &data->diropen) - grub_free (fdiro); grub_free (data); grub_dl_unref (my_mod); @@ -588,9 +582,10 @@ grub_afs_dir (grub_device_t device, const char *path, grub_afs_iterate_dir (fdiro, iterate); - fail: if (fdiro != &data->diropen) grub_free (fdiro); + + fail: grub_free (data); grub_dl_unref (my_mod);