#ifndef _KERN_LEDGER_H_
#define _KERN_LEDGER_H_
#include <mach/mach_types.h>
#ifdef MACH_KERNEL_PRIVATE
#include <os/refcnt.h>
#endif
#define LEDGER_INFO 0
#define LEDGER_ENTRY_INFO 1
#define LEDGER_TEMPLATE_INFO 2
#define LEDGER_LIMIT 3
#define LEDGER_MAX_CMD LEDGER_LIMIT
#define LEDGER_NAME_MAX 32
struct ledger_info {
char li_name[LEDGER_NAME_MAX];
int64_t li_id;
int64_t li_entries;
};
struct ledger_template_info {
char lti_name[LEDGER_NAME_MAX];
char lti_group[LEDGER_NAME_MAX];
char lti_units[LEDGER_NAME_MAX];
};
#ifdef MACH_KERNEL_PRIVATE
struct ledger_entry {
volatile uint32_t le_flags;
#define LEDGER_PERCENT_NONE UINT16_MAX
uint16_t le_warn_percent;
ledger_amount_t le_limit;
volatile ledger_amount_t le_credit __attribute__((aligned(8)));
volatile ledger_amount_t le_debit __attribute__((aligned(8)));
union {
struct {
uint64_t le_refill_period;
uint64_t le_last_refill;
} le_refill;
struct {
ledger_amount_t le_lifetime_max;
#if CONFIG_LEDGER_INTERVAL_MAX
ledger_amount_t le_interval_max;
#endif
} _le_max;
} _le;
} __attribute__((aligned(8)));
struct ledger {
uint64_t l_id;
os_refcnt_t l_refs;
int32_t l_size;
struct ledger_template *l_template;
struct ledger_entry l_entries[0] __attribute__((aligned(8)));
};
#endif
struct ledger_entry_info {
int64_t lei_balance;
int64_t lei_credit;
int64_t lei_debit;
uint64_t lei_limit;
uint64_t lei_refill_period;
uint64_t lei_last_refill;
};
struct ledger_limit_args {
char lla_name[LEDGER_NAME_MAX];
uint64_t lla_limit;
uint64_t lla_refill_period;
};
#ifdef KERNEL_PRIVATE
typedef struct ledger_template *ledger_template_t;
#define LEDGER_VALID(ledger) (ledger != LEDGER_NULL)
#define LEDGER_ACTION_IGNORE 0x0000
#define LEDGER_ACTION_BLOCK 0x0010
#define LEDGER_ACTION_CALLBACK 0x0020
#define LEDGER_ACTION_MASK 0x00f0
#define LEDGER_WARNING_ROSE_ABOVE 1
#define LEDGER_WARNING_DIPPED_BELOW 2
typedef void (*ledger_callback_t)(int warning, const void * param0, const void *param1);
extern ledger_template_t ledger_template_create(const char *name);
extern ledger_template_t ledger_template_copy(ledger_template_t template, const char *name);
extern void ledger_template_dereference(ledger_template_t template);
extern int ledger_entry_add(ledger_template_t template, const char *key,
const char *group, const char *units);
extern kern_return_t ledger_set_callback(ledger_template_t template, int entry,
ledger_callback_t callback, const void *param0, const void *param1);
extern kern_return_t ledger_track_maximum(ledger_template_t template, int entry,
int period_in_secs);
extern kern_return_t ledger_panic_on_negative(ledger_template_t template,
int entry);
extern kern_return_t ledger_track_credit_only(ledger_template_t template,
int entry);
extern int ledger_key_lookup(ledger_template_t template, const char *key);
#define LEDGER_CREATE_ACTIVE_ENTRIES 0
#define LEDGER_CREATE_INACTIVE_ENTRIES 1
extern ledger_t ledger_instantiate(ledger_template_t template, int entry_type);
extern void ledger_template_complete(ledger_template_t template);
extern void ledger_template_complete_secure_alloc(ledger_template_t template);
extern kern_return_t ledger_disable_callback(ledger_t ledger, int entry);
extern kern_return_t ledger_enable_callback(ledger_t ledger, int entry);
extern kern_return_t ledger_get_limit(ledger_t ledger, int entry,
ledger_amount_t *limit);
extern kern_return_t ledger_set_limit(ledger_t ledger, int entry,
ledger_amount_t limit, uint8_t warn_level_percentage);
#if CONFIG_LEDGER_INTERVAL_MAX
extern kern_return_t ledger_get_interval_max(ledger_t ledger, int entry,
ledger_amount_t *max_interval_balance, int reset);
#endif
extern kern_return_t ledger_get_lifetime_max(ledger_t ledger, int entry,
ledger_amount_t *max_lifetime_balance);
extern kern_return_t ledger_get_actions(ledger_t ledger, int entry, int *actions);
extern kern_return_t ledger_set_action(ledger_t ledger, int entry, int action);
extern kern_return_t ledger_get_period(ledger_t ledger, int entry,
uint64_t *period);
extern kern_return_t ledger_set_period(ledger_t ledger, int entry,
uint64_t period);
extern kern_return_t ledger_disable_refill(ledger_t l, int entry);
extern kern_return_t ledger_entry_setactive(ledger_t ledger, int entry);
extern void ledger_check_new_balance(thread_t thread, ledger_t ledger, int entry);
extern kern_return_t ledger_credit(ledger_t ledger, int entry,
ledger_amount_t amount);
extern kern_return_t ledger_credit_nocheck(ledger_t ledger, int entry,
ledger_amount_t amount);
extern kern_return_t ledger_debit(ledger_t ledger, int entry,
ledger_amount_t amount);
extern kern_return_t ledger_debit_nocheck(ledger_t ledger, int entry,
ledger_amount_t amount);
extern kern_return_t ledger_credit_thread(thread_t thread, ledger_t ledger,
int entry, ledger_amount_t amount);
extern kern_return_t ledger_debit_thread(thread_t thread, ledger_t ledger,
int entry, ledger_amount_t amount);
extern kern_return_t ledger_zero_balance(ledger_t ledger, int entry);
extern kern_return_t ledger_get_entries(ledger_t ledger, int entry,
ledger_amount_t *credit, ledger_amount_t *debit);
extern kern_return_t ledger_get_balance(ledger_t ledger, int entry,
ledger_amount_t *balance);
extern kern_return_t ledger_reset_callback_state(ledger_t ledger, int entry);
extern kern_return_t ledger_disable_panic_on_negative(ledger_t ledger, int entry);
extern kern_return_t ledger_get_panic_on_negative(ledger_t ledger, int entry, int *panic_on_negative);
extern kern_return_t ledger_rollup(ledger_t to_ledger, ledger_t from_ledger);
extern kern_return_t ledger_rollup_entry(ledger_t to_ledger, ledger_t from_ledger, int entry);
extern void ledger_ast(thread_t thread);
extern void ledger_reference(ledger_t ledger);
extern void ledger_dereference(ledger_t ledger);
#ifdef LEDGER_DEBUG
extern int ledger_limit(task_t task, struct ledger_limit_args *args);
#endif
extern int ledger_info(task_t task, struct ledger_info *info);
extern int
ledger_get_task_entry_info_multiple(task_t task, void **buf, int *len);
extern void
ledger_get_entry_info(ledger_t ledger, int entry,
struct ledger_entry_info *lei);
extern int ledger_template_info(void **buf, int *len);
#endif
#endif