119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
/***********************************************************
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** Copyright (C), 2008-2019, OPLUS Mobile Comm Corp., Ltd.
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** File: hans.h
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** Description: Add for hans freeze manager
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**
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** Version: 1.0
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** Date : 2019/09/23
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**
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** ------------------ Revision History:------------------------
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** <author> <data> <version > <desc>
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** Kun Zhou 2019/09/23 1.0 OPLUS_ARCH_EXTENDS
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** Kun Zhou 2019/09/23 1.1 OPLUS_FEATURE_HANS_FREEZE
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****************************************************************/
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#ifndef _HANS_H
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#define _HANS_H
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#include <linux/freezer.h>
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#include <linux/cgroup.h>
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#include "../../kernel/sched/sched.h"
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#define HANS_NOERROR (0)
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#define HANS_ERROR (-1)
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#define MIN_USERAPP_UID (10000)
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#define HANS_SYSTEM_UID (1000)
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#define INTERFACETOKEN_BUFF_SIZE (140)
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#define PARCEL_OFFSET (16) // sync with the writeInterfaceToken
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#define CPUCTL_VERSION (2)
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#define CHECK_KERN_SUPPORT_CGRPV2 (-8000)
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#define HANS_USE_CGRPV2 (-99)
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/* hans_message for comunication with HANS native deamon
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* type: async binder/sync binder/signal/pkg/loopback
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* Only loop back type is duplex (native deamon <---> kernel) for handshake
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* port: native deamon pid
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* caller_pid: binder, caller -> unfreeze (target) UID
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* target_uid: UID want to be unfrozen
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* pkg_cmd: Add/Remove monitored UID
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*/
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struct hans_message {
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int type;
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int port; // pid
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int caller_uid;
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int caller_pid; // caller -> unfreeze UID
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int target_pid;
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int target_uid; // unfreeze UID, pkg add/remove UID
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int pkg_cmd; //Add/remove monitored uid
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int code;
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char rpc_name[INTERFACETOKEN_BUFF_SIZE];
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};
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// hans message type definition
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enum message_type {
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//kernel --> native deamon
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ASYNC_BINDER,
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SYNC_BINDER,
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FROZEN_TRANS,
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SIGNAL,
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PKG,
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SYNC_BINDER_CPUCTL,
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SIGNAL_CPUCTL,
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CPUCTL_TRANS,
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// kernel <--> native deamon
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LOOP_BACK,
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TYPE_MAX
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};
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// pkg cmd type
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enum pkg_cmd {
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ADD_ONE_UID,
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DEL_ONE_UID,
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DEL_ALL_UID,
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PKG_CMD_MAX
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};
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//Check if the thread group is frozen
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static inline bool is_jobctl_frozen(struct task_struct *task)
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{
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return ((task->jobctl & JOBCTL_TRAP_FREEZE) != 0);
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}
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static inline bool is_frozen_tg(struct task_struct* task)
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{
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return ((cgroup_task_frozen(task) && is_jobctl_frozen(task)) || frozen(task->group_leader) || freezing(task->group_leader));
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}
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int hans_report(enum message_type type, int caller_pid, int caller_uid, int target_pid, int target_uid, const char *rpc_name, int code);
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void hans_network_cmd_parse(uid_t uid, enum pkg_cmd cmd);
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void hans_check_frozen_transcation(uid_t uid, enum message_type type);
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int hans_netfilter_init(void);
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void hans_netfilter_deinit(void);
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#if defined(CONFIG_CFS_BANDWIDTH)
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static inline bool is_belong_cpugrp(struct task_struct *task)
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{
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if (task->sched_task_group != NULL) {
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struct cfs_bandwidth cfs_b = task->sched_task_group->cfs_bandwidth;
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if (cfs_b.quota != -1) {
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return true;
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} else if (cfs_b.quota == -1) {
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return false;
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}
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}
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return false;
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}
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#else
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static inline bool is_belong_cpugrp(struct task_struct *task)
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{
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return false;
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}
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#endif
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#endif
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