| /* |
| * e2fsck.c - a consistency checker for the new extended file system. |
| * |
| * Copyright (C) 1993, 1994, 1995, 1996, 1997 Theodore Ts'o. |
| * |
| * %Begin-Header% |
| * This file may be redistributed under the terms of the GNU Public |
| * License. |
| * %End-Header% |
| */ |
| |
| #include <errno.h> |
| |
| #include "e2fsck.h" |
| #include "problem.h" |
| |
| /* |
| * This function allocates an e2fsck context |
| */ |
| errcode_t e2fsck_allocate_context(e2fsck_t *ret) |
| { |
| e2fsck_t context; |
| errcode_t retval; |
| |
| retval = ext2fs_get_mem(sizeof(struct e2fsck_struct), |
| (void **) &context); |
| if (retval) |
| return retval; |
| |
| memset(context, 0, sizeof(struct e2fsck_struct)); |
| |
| context->process_inode_size = 256; |
| |
| *ret = context; |
| return 0; |
| } |
| |
| /* |
| * This function resets an e2fsck context; it is called when e2fsck |
| * needs to be restarted. |
| */ |
| errcode_t e2fsck_reset_context(e2fsck_t ctx) |
| { |
| ctx->flags = 0; |
| if (ctx->inode_used_map) { |
| ext2fs_free_inode_bitmap(ctx->inode_used_map); |
| ctx->inode_used_map = 0; |
| } |
| if (ctx->inode_dir_map) { |
| ext2fs_free_inode_bitmap(ctx->inode_dir_map); |
| ctx->inode_dir_map = 0; |
| } |
| if (ctx->block_found_map) { |
| ext2fs_free_block_bitmap(ctx->block_found_map); |
| ctx->block_found_map = 0; |
| } |
| if (ctx->inode_link_info) { |
| ext2fs_free_icount(ctx->inode_link_info); |
| ctx->inode_link_info = 0; |
| } |
| if (ctx->fs->dblist) { |
| ext2fs_free_dblist(ctx->fs->dblist); |
| ctx->fs->dblist = 0; |
| } |
| e2fsck_free_dir_info(ctx); |
| if (ctx->block_dup_map) { |
| ext2fs_free_block_bitmap(ctx->block_dup_map); |
| ctx->block_dup_map = 0; |
| } |
| if (ctx->inode_bb_map) { |
| ext2fs_free_inode_bitmap(ctx->inode_bb_map); |
| ctx->inode_bb_map = 0; |
| } |
| if (ctx->inode_bad_map) { |
| ext2fs_free_inode_bitmap(ctx->inode_bad_map); |
| ctx->inode_bad_map = 0; |
| } |
| |
| /* |
| * Clear the array of invalid meta-data flags |
| */ |
| if (ctx->invalid_inode_bitmap_flag) { |
| ext2fs_free_mem((void **) &ctx->invalid_inode_bitmap_flag); |
| ctx->invalid_inode_bitmap_flag = 0; |
| } |
| if (ctx->invalid_block_bitmap_flag) { |
| ext2fs_free_mem((void **) &ctx->invalid_block_bitmap_flag); |
| ctx->invalid_block_bitmap_flag = 0; |
| } |
| if (ctx->invalid_inode_table_flag) { |
| ext2fs_free_mem((void **) &ctx->invalid_inode_table_flag); |
| ctx->invalid_inode_table_flag = 0; |
| } |
| |
| /* Clear statistic counters */ |
| ctx->fs_directory_count = 0; |
| ctx->fs_regular_count = 0; |
| ctx->fs_blockdev_count = 0; |
| ctx->fs_chardev_count = 0; |
| ctx->fs_links_count = 0; |
| ctx->fs_symlinks_count = 0; |
| ctx->fs_fast_symlinks_count = 0; |
| ctx->fs_fifo_count = 0; |
| ctx->fs_total_count = 0; |
| ctx->fs_badblocks_count = 0; |
| ctx->fs_sockets_count = 0; |
| ctx->fs_ind_count = 0; |
| ctx->fs_dind_count = 0; |
| ctx->fs_tind_count = 0; |
| ctx->fs_fragmented = 0; |
| ctx->large_files = 0; |
| |
| /* Reset the superblock to the user's requested value */ |
| ctx->superblock = ctx->use_superblock; |
| |
| return 0; |
| } |
| |
| void e2fsck_free_context(e2fsck_t ctx) |
| { |
| if (!ctx) |
| return; |
| |
| e2fsck_reset_context(ctx); |
| |
| ext2fs_free_mem((void **) &ctx); |
| } |
| |
| /* |
| * This function runs through the e2fsck passes and calls them all, |
| * returning restart, abort, or cancel as necessary... |
| */ |
| typedef void (*pass_t)(e2fsck_t ctx); |
| |
| pass_t e2fsck_passes[] = { |
| e2fsck_pass1, e2fsck_pass2, e2fsck_pass3, e2fsck_pass4, |
| e2fsck_pass5, 0 }; |
| |
| #define E2F_FLAG_RUN_RETURN (E2F_FLAG_SIGNAL_MASK|E2F_FLAG_RESTART) |
| |
| int e2fsck_run(e2fsck_t ctx) |
| { |
| int i; |
| pass_t e2fsck_pass; |
| |
| #ifdef HAVE_SETJMP_H |
| if (setjmp(ctx->abort_loc)) |
| return (ctx->flags & E2F_FLAG_RUN_RETURN); |
| ctx->flags |= E2F_FLAG_SETJMP_OK; |
| #endif |
| |
| for (i=0; (e2fsck_pass = e2fsck_passes[i]); i++) { |
| if (ctx->flags & E2F_FLAG_RUN_RETURN) |
| break; |
| e2fsck_pass(ctx); |
| if (ctx->progress) |
| (void) (ctx->progress)(ctx, 0, 0, 0); |
| } |
| ctx->flags &= ~E2F_FLAG_SETJMP_OK; |
| |
| if (ctx->flags & E2F_FLAG_RUN_RETURN) |
| return (ctx->flags & E2F_FLAG_RUN_RETURN); |
| return 0; |
| } |
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