100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2013-2015 TRUSTONIC LIMITED
|
|
* All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef _CLIENT_H_
|
|
#define _CLIENT_H_
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/sched.h> /* TASK_COMM_LEN */
|
|
|
|
struct task_struct;
|
|
struct tbase_object;
|
|
struct tbase_session;
|
|
|
|
struct tbase_client {
|
|
/* PID of task that opened the device, 0 if kernel */
|
|
pid_t pid;
|
|
/* Command for task*/
|
|
char comm[TASK_COMM_LEN];
|
|
/* Number of references kept to this object */
|
|
struct kref kref;
|
|
/* List of contiguous buffers allocated by mcMallocWsm for the client */
|
|
struct list_head cbufs;
|
|
struct mutex cbufs_lock; /* lock for the cbufs list */
|
|
/* List of tbase TA sessions opened by this client */
|
|
struct list_head sessions;
|
|
struct mutex sessions_lock; /* sessions list + closing */
|
|
/* Client state */
|
|
bool closing;
|
|
/* The list entry to attach to "ctx.clients" list */
|
|
struct list_head list;
|
|
};
|
|
|
|
struct tbase_client *client_create(bool is_from_kernel);
|
|
|
|
void client_close_sessions(struct tbase_client *client);
|
|
|
|
static inline void client_get(struct tbase_client *client)
|
|
{
|
|
kref_get(&client->kref);
|
|
}
|
|
|
|
void client_put(struct tbase_client *client);
|
|
|
|
bool client_is_kernel(struct tbase_client *client);
|
|
|
|
bool client_set_closing(struct tbase_client *client);
|
|
|
|
int client_add_session(struct tbase_client *client,
|
|
const struct tbase_object *obj, uintptr_t tci,
|
|
size_t len, uint32_t *p_sid, bool is_gp_uuid,
|
|
struct mc_identity *identity);
|
|
|
|
int client_remove_session(struct tbase_client *client, uint32_t session_id);
|
|
|
|
struct tbase_session *client_ref_session(struct tbase_client *client,
|
|
uint32_t session_id);
|
|
|
|
void client_unref_session(struct tbase_session *session);
|
|
|
|
int client_info(struct tbase_client *client, struct kasnprintf_buf *buf);
|
|
|
|
/*
|
|
* Contiguous buffer allocated to TLCs.
|
|
* These buffers are uses as world shared memory (wsm) and shared with
|
|
* secure world.
|
|
* The virtual kernel address is added for a simpler search algorithm.
|
|
*/
|
|
struct tbase_cbuf;
|
|
|
|
int tbase_cbuf_alloc(struct tbase_client *client, uint32_t len,
|
|
uintptr_t *addr, struct vm_area_struct *vmarea);
|
|
|
|
int tbase_cbuf_free(struct tbase_client *client, uintptr_t addr);
|
|
|
|
struct tbase_cbuf *tbase_cbuf_get_by_addr(struct tbase_client *client,
|
|
uintptr_t addr);
|
|
|
|
void tbase_cbuf_get(struct tbase_cbuf *cbuf);
|
|
|
|
void tbase_cbuf_put(struct tbase_cbuf *cbuf);
|
|
|
|
uintptr_t tbase_cbuf_addr(struct tbase_cbuf *cbuf);
|
|
|
|
uintptr_t tbase_cbuf_uaddr(struct tbase_cbuf *cbuf);
|
|
|
|
uint32_t tbase_cbuf_len(struct tbase_cbuf *cbuf);
|
|
|
|
#endif /* _CLIENT_H_ */
|