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1f0583beeb
eficonfig_append_menu_entryi() accepts the number of entries less than or equal to EFICONFIG_ENTRY_NUM_MAX. EFICONFIG_ENTRY_NUM_MAX is currently set as INT_MAX, so the invalid menu count check(efi_menu->count > EFICONFIG_ENTRY_NUM_MAX) in eficonfig_process_common() is always false. This commit sets EFICONFIG_ENTRY_NUM_MAX to (INT_MAX - 1). Reported-by: Coverity (CID 435659) Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Menu-driven UEFI Variable maintenance
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*
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* Copyright (c) 2022 Masahisa Kojima, Linaro Limited
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*/
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#ifndef _EFI_CONFIG_H
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#define _EFI_CONFIG_H
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#include <efi_loader.h>
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#include <menu.h>
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#define EFICONFIG_ENTRY_NUM_MAX (INT_MAX - 1)
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#define EFICONFIG_VOLUME_PATH_MAX 512
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#define EFICONFIG_FILE_PATH_MAX 512
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#define EFICONFIG_FILE_PATH_BUF_SIZE (EFICONFIG_FILE_PATH_MAX * sizeof(u16))
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extern const char *eficonfig_menu_desc;
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typedef efi_status_t (*eficonfig_entry_func)(void *data);
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/**
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* struct eficonfig_entry - menu entry structure
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*
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* @num: menu entry index
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* @title: title of entry
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* @key: unique key
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* @efi_menu: pointer to the menu structure
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* @func: callback function to be called when this entry is selected
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* @data: data to be passed to the callback function, caller must free() this pointer
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* @list: list structure
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*/
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struct eficonfig_entry {
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u32 num;
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char *title;
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char key[3];
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struct efimenu *efi_menu;
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eficonfig_entry_func func;
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void *data;
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struct list_head list;
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};
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/**
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* struct efimenu - efi menu structure
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*
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* @delay: delay for autoboot
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* @active: active menu entry index
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* @count: total count of menu entry
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* @menu_header: menu header string
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* @menu_desc: menu description string
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* @list: menu entry list structure
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* @start: top menu index to draw
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* @end: bottom menu index to draw
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*/
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struct efimenu {
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int delay;
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int active;
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int count;
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char *menu_header;
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const char *menu_desc;
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struct list_head list;
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int start;
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int end;
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};
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/**
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* struct eficonfig_item - structure to construct eficonfig_entry
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*
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* @title: title of entry
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* @func: callback function to be called when this entry is selected
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* @data: data to be passed to the callback function
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*/
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struct eficonfig_item {
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char *title;
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eficonfig_entry_func func;
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void *data;
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};
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/**
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* struct eficonfig_select_file_info - structure to be used for file selection
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*
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* @current_volume: pointer to the efi_simple_file_system_protocol
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* @dp_volume: pointer to device path of the selected device
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* @current_path: pointer to the selected file path string
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* @filepath_list: list_head structure for file path list
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* @file_selectred: flag indicates file selecting status
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*/
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struct eficonfig_select_file_info {
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struct efi_simple_file_system_protocol *current_volume;
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struct efi_device_path *dp_volume;
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u16 *current_path;
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struct list_head filepath_list;
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bool file_selected;
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};
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void eficonfig_print_msg(char *msg);
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void eficonfig_print_entry(void *data);
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void eficonfig_display_statusline(struct menu *m);
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char *eficonfig_choice_entry(void *data);
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void eficonfig_destroy(struct efimenu *efi_menu);
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efi_status_t eficonfig_process_quit(void *data);
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efi_status_t eficonfig_process_common(struct efimenu *efi_menu,
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char *menu_header, const char *menu_desc,
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void (*display_statusline)(struct menu *),
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void (*item_data_print)(void *),
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char *(*item_choice)(void *));
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efi_status_t eficonfig_process_select_file(void *data);
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efi_status_t eficonfig_get_unused_bootoption(u16 *buf,
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efi_uintn_t buf_size, u32 *index);
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efi_status_t eficonfig_append_bootorder(u16 index);
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efi_status_t eficonfig_generate_media_device_boot_option(void);
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efi_status_t eficonfig_append_menu_entry(struct efimenu *efi_menu,
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char *title, eficonfig_entry_func func,
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void *data);
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efi_status_t eficonfig_append_quit_entry(struct efimenu *efi_menu);
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struct efi_device_path *eficonfig_create_device_path(struct efi_device_path *dp_volume,
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u16 *current_path);
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void *eficonfig_create_fixed_menu(const struct eficonfig_item *items, int count);
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#ifdef CONFIG_EFI_SECURE_BOOT
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efi_status_t eficonfig_process_secure_boot_config(void *data);
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#endif
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#endif
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