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emulator: Add support for pre/post command/event hooks

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Now who use emulator can add hooks to manipulate hci packets before
and after process commands and send events.
This commit is contained in:
Eder Ruiz Maria 2013-07-20 20:17:13 -04:00 committed by Johan Hedberg
parent d1abf2b7d8
commit 37199df506
2 changed files with 52 additions and 0 deletions
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37
emulator/btdev.c
View File

@ -42,6 +42,15 @@
#define has_bredr(btdev) (!((btdev)->features[4] & 0x20))
#define has_le(btdev) (!!((btdev)->features[4] & 0x40))
struct hook {
btdev_hook_func handler;
void *user_data;
enum btdev_hook_type type;
uint16_t opcode;
};
#define MAX_HOOK_ENTRIES 16
struct btdev {
enum btdev_type type;
@ -53,6 +62,8 @@ struct btdev {
btdev_send_func send_handler;
void *send_data;
struct hook *hook_list[MAX_HOOK_ENTRIES];
uint16_t manufacturer;
uint8_t version;
uint16_t revision;
@ -1689,3 +1700,29 @@ void btdev_receive_h4(struct btdev *btdev, const void *data, uint16_t len)
break;
}
}
int btdev_add_hook(struct btdev *btdev, enum btdev_hook_type type,
uint16_t opcode, btdev_hook_func handler,
void *user_data)
{
int i;
if (!btdev)
return -1;
for (i = 0; i < MAX_HOOK_ENTRIES; i++) {
if (btdev->hook_list[i] == NULL) {
btdev->hook_list[i] = malloc(sizeof(struct hook));
if (btdev->hook_list[i] == NULL)
return -1;
btdev->hook_list[i]->handler = handler;
btdev->hook_list[i]->user_data = user_data;
btdev->hook_list[i]->opcode = opcode;
btdev->hook_list[i]->type = type;
return i;
}
}
return -1;
}

15
emulator/btdev.h
View File

@ -23,6 +23,7 @@
*/
#include <stdint.h>
#include <stdbool.h>
#define BTDEV_RESPONSE_DEFAULT 0
#define BTDEV_RESPONSE_COMMAND_STATUS 1
@ -53,6 +54,9 @@ typedef void (*btdev_command_func) (uint16_t opcode,
typedef void (*btdev_send_func) (const void *data, uint16_t len,
void *user_data);
typedef bool (*btdev_hook_func) (const void *data, uint16_t len,
void *user_data);
enum btdev_type {
BTDEV_TYPE_BREDRLE,
BTDEV_TYPE_BREDR,
@ -60,6 +64,13 @@ enum btdev_type {
BTDEV_TYPE_AMP,
};
enum btdev_hook_type {
BTDEV_HOOK_PRE_CMD,
BTDEV_HOOK_POST_CMD,
BTDEV_HOOK_PRE_EVT,
BTDEV_HOOK_POST_EVT,
};
struct btdev;
struct btdev *btdev_create(enum btdev_type type, uint16_t id);
@ -74,3 +85,7 @@ void btdev_set_send_handler(struct btdev *btdev, btdev_send_func handler,
void *user_data);
void btdev_receive_h4(struct btdev *btdev, const void *data, uint16_t len);
int btdev_add_hook(struct btdev *btdev, enum btdev_hook_type type,
uint16_t opcode, btdev_hook_func handler,
void *user_data);