122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
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#ifndef _AGENT_H_
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#define _AGENT_H__
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#include <linux/fs.h>
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#include "teek_ns_client.h"
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#define AGENT_FS_ID 0x46536673 /*FSfs*/
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#define AGENT_MISC_ID 0x4d495343 /*MISC*/
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#define TEE_RPMB_AGENT_ID 0x4abe6198 /*RPMB*/
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#define AGENT_SOCKET_ID 0x69e85664 /*socket*/
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#ifdef CONFIG_TEE_SMP
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/* if a shadow task does a agent request */
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#define SHADOW_AGENT_FLAG (1<<31)
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/* ssa and rpmb agent use */
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#define SS_AGENT_MSG 11723
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#define MT_AGENT_MSG 11724
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#define AGENT_MSG_VAL(msg) (msg&(~SHADOW_AGENT_FLAG))
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#endif
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struct __smc_event_data *find_event_control(unsigned int agent_id);
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/*for secure agent*/
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struct __smc_event_data {
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unsigned int agent_id;
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int agent_alive;
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struct mutex work_lock;
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wait_queue_head_t wait_event_wq;
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int ret_flag;
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wait_queue_head_t send_response_wq;
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int send_flag;
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struct list_head head;
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TC_NS_SMC_CMD cmd;
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TC_NS_DEV_File *owner;
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TC_NS_Shared_MEM *buffer;
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atomic_t usage;
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#ifdef CONFIG_TEE_SMP
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wait_queue_head_t ca_pending_wq;
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atomic_t ca_run;
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#endif
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};
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struct tee_agent_kernel_ops {
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const char *agent_name; /* MUST NOT be NULL*/
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unsigned int agent_id; /* MUST NOT be zero*/
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int (*tee_agent_init)(struct tee_agent_kernel_ops *agent_instance);
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int (*tee_agent_run)(struct tee_agent_kernel_ops *agent_instance);
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/* MUST NOT be NULL*/
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int (*tee_agent_work)(struct tee_agent_kernel_ops *agent_instance);
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int (*tee_agent_stop)(struct tee_agent_kernel_ops *agent_instance);
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int (*tee_agent_exit)(struct tee_agent_kernel_ops *agent_instance);
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int (*tee_agent_crash_work)(struct tee_agent_kernel_ops *
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agent_instance,
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TC_NS_ClientContext *context,
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unsigned int dev_file_id);
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struct task_struct *agent_thread;
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void *agent_data;
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TC_NS_Shared_MEM *agent_buffer;
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struct list_head list;
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};
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static inline void get_agent_event(struct __smc_event_data *event_data)
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{
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if (event_data)
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atomic_inc(&event_data->usage);
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}
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static inline void put_agent_event(struct __smc_event_data *event_data)
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{
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if (event_data) {
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if (atomic_dec_and_test(&event_data->usage))
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kfree(event_data);
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}
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}
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int agent_init(void);
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int agent_exit(void);
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int agent_process_work(TC_NS_SMC_CMD *smc_cmd, unsigned int agent_id);
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int is_agent_alive(unsigned int agent_id);
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int TC_NS_set_nativeCA_hash(unsigned long arg);
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int TC_NS_register_agent(TC_NS_DEV_File *dev_file,
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unsigned int agent_id,
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TC_NS_Shared_MEM *shared_mem);
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int TC_NS_unregister_agent(unsigned int agent_id);
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int TC_NS_unregister_agent_client(TC_NS_DEV_File *dev_file);
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unsigned int TC_NS_incomplete_proceed(TC_NS_SMC_CMD *smc_cmd,
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unsigned int agent_id,
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uint8_t flags);
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int TC_NS_wait_event(unsigned int agent_id);
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int TC_NS_send_event_response(unsigned int agent_id);
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void TC_NS_send_event_response_all(void);
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int TC_NS_sync_sys_time(TC_NS_Time *tc_ns_time);
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int tee_agent_clear_work(TC_NS_ClientContext *context, unsigned int dev_file_id);
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int tee_agent_kernel_register(struct tee_agent_kernel_ops *new_agent);
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bool TC_NS_is_system_agent_client(TC_NS_DEV_File *dev_file);
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extern int mmc_blk_ioctl_rpmb_cmd(enum func_id id,
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struct block_device *bdev,
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struct mmc_blk_ioc_rpmb_data *idata);
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extern struct mmc_card *get_mmc_card(struct block_device *bdev);
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extern int check_ext_agent_access(struct task_struct *ca_task);
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char *get_process_path(struct task_struct *task, char *tpath);
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extern int rpmb_agent_register(void);
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#endif /*_AGENT_H_*/
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