90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
#ifndef KFRECESS_H
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#define KFRECESS_H
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#include <linux/sched.h>
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#define KERNEL_ID_NETLINK 0x12341234
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#define UID_MIN_VALUE 10000
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#define MSG_NOOP 0
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#define LOOPBACK_MSG 1
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#define MSG_TO_KERN 2
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#define MSG_TO_USER 3
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#define MSG_TYPE_END 4
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#define MOD_NOOP 0
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#define MOD_BINDER 1
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#define MOD_SIG 2
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#define MOD_PKG 3
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#define MOD_CFB 4
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#define MOD_END 5
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#define INTERFACETOKEN_BUFF_SIZE 100
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typedef enum {
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ADD_UID,
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DEL_UID,
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CLEAR_ALL_UID,
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} pkg_cmd_t;
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typedef struct {
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pkg_cmd_t cmd;
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uid_t uid;
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}pkg_info_t;
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/*
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* Freecess version management
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* we have two definitions in both FW and kernel side for the kfreecess_msg_data
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* and we also have many branches: different android versions, different devices,
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* different chips, different kernel versions.
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* and freecess have new features continuously in both FW & kernel side.
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* So it is become more and more important that we need a version management
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* for these different things.
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* To keep compatibility with the old version, we re-use the "caller_pid" field
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* because it is invalild in old version.
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* we don't remove "caller_pid" for compatibility, instead, use an union to re-use the field.
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* maybe in future, we can remove the caller_pid, DO NOT use this field.
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*
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* use 28 bits to store the useless caller_pid, max pid num 268435455
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* |-- 4bits version --|---------- 28bits caller_pid ----------| 0xF0000000
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*
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*/
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/* The initial version is 0, and used until P(contain P)
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* For Q, because 8bytes ->12 bytes issue, use version 1
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* If new featue added, version increased.
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*/
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#define FREECESS_KERNEL_VERSION 1
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#define FREECESS_PEER_VERSION(version) (((version) & 0xF0000000) >> 28)
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#define FREECESS_PACK_VERSION(version) ((version) << 28)
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struct kfreecess_msg_data
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{
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int type;
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int mod;
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int src_portid;
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int dst_portid;
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union {
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unsigned int caller_pid;
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unsigned int version; // |--4bits version--|----28bits caller_pid----|
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};
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int target_uid;
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int flag; //MOD_SIG,MOD_BINDER
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int code;
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char rpcname[INTERFACETOKEN_BUFF_SIZE];
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pkg_info_t pkg_info; //MOD_PKG
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};
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extern int freecess_fw_version; // record freecess framework version
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typedef void (*freecess_hook)(void* data, unsigned int len);
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int sig_report(struct task_struct *p, bool report_pid);
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int binder_report(struct task_struct *p, int code, const char *str, int flag);
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int pkg_report(int target_uid);
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int cfb_report(int target_uid, const char *reason);
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int register_kfreecess_hook(int mod, freecess_hook hook);
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int unregister_kfreecess_hook(int mod);
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int thread_group_is_frozen(struct task_struct* task);
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#endif
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