linux/drivers/platform/x86/think-lmi.h
Mark Pearson 36560efeab platform/x86: think-lmi: certificate support clean ups
Complete some clean-ups as reqested from the last review as follow-ups
 - Remove certificate from structure as no need to store it any more
 - Clean up return code handling
 - Moved freeing of signature to before admin object released (issue
   seen in testing when unloading module)
 - Minor code flow improvements

Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220321180624.4761-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-04-04 15:20:53 +02:00

104 lines
2.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _THINK_LMI_H_
#define _THINK_LMI_H_
#include <linux/types.h>
#define TLMI_SETTINGS_COUNT 256
#define TLMI_SETTINGS_MAXLEN 512
#define TLMI_PWD_BUFSIZE 129
#define TLMI_LANG_MAXLEN 4
#define TLMI_INDEX_MAX 32
/* Possible error values */
struct tlmi_err_codes {
const char *err_str;
int err_code;
};
enum encoding_option {
TLMI_ENCODING_ASCII,
TLMI_ENCODING_SCANCODE,
};
enum level_option {
TLMI_LEVEL_USER,
TLMI_LEVEL_MASTER,
};
/* password configuration details */
struct tlmi_pwdcfg_core {
uint32_t password_mode;
uint32_t password_state;
uint32_t min_length;
uint32_t max_length;
uint32_t supported_encodings;
uint32_t supported_keyboard;
};
struct tlmi_pwdcfg_ext {
uint32_t hdd_user_password;
uint32_t hdd_master_password;
uint32_t nvme_user_password;
uint32_t nvme_master_password;
};
struct tlmi_pwdcfg {
struct tlmi_pwdcfg_core core;
struct tlmi_pwdcfg_ext ext;
};
/* password setting details */
struct tlmi_pwd_setting {
struct kobject kobj;
bool valid;
char password[TLMI_PWD_BUFSIZE];
const char *pwd_type;
const char *role;
int minlen;
int maxlen;
enum encoding_option encoding;
char kbdlang[TLMI_LANG_MAXLEN];
int index; /*Used for HDD and NVME auth */
enum level_option level;
bool cert_installed;
char *signature;
char *save_signature;
};
/* Attribute setting details */
struct tlmi_attr_setting {
struct kobject kobj;
int index;
char display_name[TLMI_SETTINGS_MAXLEN];
char *possible_values;
};
struct think_lmi {
struct wmi_device *wmi_device;
bool can_set_bios_settings;
bool can_get_bios_selections;
bool can_set_bios_password;
bool can_get_password_settings;
bool pending_changes;
bool can_debug_cmd;
bool opcode_support;
bool certificate_support;
struct tlmi_attr_setting *setting[TLMI_SETTINGS_COUNT];
struct device *class_dev;
struct kset *attribute_kset;
struct kset *authentication_kset;
struct tlmi_pwdcfg pwdcfg;
struct tlmi_pwd_setting *pwd_admin;
struct tlmi_pwd_setting *pwd_power;
struct tlmi_pwd_setting *pwd_system;
struct tlmi_pwd_setting *pwd_hdd;
struct tlmi_pwd_setting *pwd_nvme;
};
#endif /* !_THINK_LMI_H_ */