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platform_system_core/adb/adb.h

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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __ADB_H
#define __ADB_H
#include <limits.h>
#include <sys/types.h>
#include "adb_trace.h"
#include "fdevent.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MAX_PAYLOAD 4096
#define A_SYNC 0x434e5953
#define A_CNXN 0x4e584e43
#define A_OPEN 0x4e45504f
#define A_OKAY 0x59414b4f
#define A_CLSE 0x45534c43
#define A_WRTE 0x45545257
#define A_AUTH 0x48545541
// ADB protocol version.
#define A_VERSION 0x01000000
// Used for help/version information.
#define ADB_VERSION_MAJOR 1
#define ADB_VERSION_MINOR 0
// Increment this when we want to force users to start a new adb server.
#define ADB_SERVER_VERSION 32
typedef struct amessage amessage;
typedef struct apacket apacket;
typedef struct asocket asocket;
typedef struct alistener alistener;
typedef struct aservice aservice;
typedef struct atransport atransport;
typedef struct adisconnect adisconnect;
typedef struct usb_handle usb_handle;
struct amessage {
unsigned command; /* command identifier constant */
unsigned arg0; /* first argument */
unsigned arg1; /* second argument */
unsigned data_length; /* length of payload (0 is allowed) */
unsigned data_check; /* checksum of data payload */
unsigned magic; /* command ^ 0xffffffff */
};
struct apacket
{
apacket *next;
unsigned len;
unsigned char *ptr;
amessage msg;
unsigned char data[MAX_PAYLOAD];
};
/* An asocket represents one half of a connection between a local and
** remote entity. A local asocket is bound to a file descriptor. A
** remote asocket is bound to the protocol engine.
*/
struct asocket {
/* chain pointers for the local/remote list of
** asockets that this asocket lives in
*/
asocket *next;
asocket *prev;
/* the unique identifier for this asocket
*/
unsigned id;
/* flag: set when the socket's peer has closed
** but packets are still queued for delivery
*/
int closing;
/* flag: quit adbd when both ends close the
** local service socket
*/
int exit_on_close;
/* the asocket we are connected to
*/
asocket *peer;
/* For local asockets, the fde is used to bind
** us to our fd event system. For remote asockets
** these fields are not used.
*/
fdevent fde;
int fd;
/* queue of apackets waiting to be written
*/
apacket *pkt_first;
apacket *pkt_last;
/* enqueue is called by our peer when it has data
** for us. It should return 0 if we can accept more
** data or 1 if not. If we return 1, we must call
** peer->ready() when we once again are ready to
** receive data.
*/
int (*enqueue)(asocket *s, apacket *pkt);
/* ready is called by the peer when it is ready for
** us to send data via enqueue again
*/
void (*ready)(asocket *s);
/* shutdown is called by the peer before it goes away.
** the socket should not do any further calls on its peer.
** Always followed by a call to close. Optional, i.e. can be NULL.
*/
void (*shutdown)(asocket *s);
/* close is called by the peer when it has gone away.
** we are not allowed to make any further calls on the
** peer once our close method is called.
*/
void (*close)(asocket *s);
/* A socket is bound to atransport */
atransport *transport;
};
/* the adisconnect structure is used to record a callback that
** will be called whenever a transport is disconnected (e.g. by the user)
** this should be used to cleanup objects that depend on the
** transport (e.g. remote sockets, listeners, etc...)
*/
struct adisconnect
{
void (*func)(void* opaque, atransport* t);
void* opaque;
adisconnect* next;
adisconnect* prev;
};
/* a transport object models the connection to a remote device or emulator
** there is one transport per connected device/emulator. a "local transport"
** connects through TCP (for the emulator), while a "usb transport" through
** USB (for real devices)
**
** note that kTransportHost doesn't really correspond to a real transport
** object, it's a special value used to indicate that a client wants to
** connect to a service implemented within the ADB server itself.
*/
typedef enum transport_type {
kTransportUsb,
kTransportLocal,
kTransportAny,
kTransportHost,
} transport_type;
#define TOKEN_SIZE 20
struct atransport
{
atransport *next;
atransport *prev;
int (*read_from_remote)(apacket *p, atransport *t);
int (*write_to_remote)(apacket *p, atransport *t);
void (*close)(atransport *t);
void (*kick)(atransport *t);
int fd;
int transport_socket;
fdevent transport_fde;
int ref_count;
unsigned sync_token;
int connection_state;
int online;
transport_type type;
/* usb handle or socket fd as needed */
usb_handle *usb;
int sfd;
/* used to identify transports for clients */
char *serial;
char *product;
char *model;
char *device;
char *devpath;
int adb_port; // Use for emulators (local transport)
/* a list of adisconnect callbacks called when the transport is kicked */
int kicked;
adisconnect disconnects;
void *key;
unsigned char token[TOKEN_SIZE];
fdevent auth_fde;
unsigned failed_auth_attempts;
};
/* A listener is an entity which binds to a local port
** and, upon receiving a connection on that port, creates
** an asocket to connect the new local connection to a
** specific remote service.
**
** TODO: some listeners read from the new connection to
** determine what exact service to connect to on the far
** side.
*/
struct alistener
{
alistener *next;
alistener *prev;
fdevent fde;
int fd;
char *local_name;
char *connect_to;
atransport *transport;
adisconnect disconnect;
};
void print_packet(const char *label, apacket *p);
asocket *find_local_socket(unsigned local_id, unsigned remote_id);
void install_local_socket(asocket *s);
void remove_socket(asocket *s);
void close_all_sockets(atransport *t);
#define LOCAL_CLIENT_PREFIX "emulator-"
asocket *create_local_socket(int fd);
asocket *create_local_service_socket(const char *destination);
asocket *create_remote_socket(unsigned id, atransport *t);
void connect_to_remote(asocket *s, const char *destination);
void connect_to_smartsocket(asocket *s);
void fatal(const char *fmt, ...);
void fatal_errno(const char *fmt, ...);
void handle_packet(apacket *p, atransport *t);
void get_my_path(char *s, size_t maxLen);
int launch_server(int server_port);
int adb_main(int is_daemon, int server_port);
/* initialize a transport object's func pointers and state */
#if ADB_HOST
int get_available_local_transport_index();
#endif
int init_socket_transport(atransport *t, int s, int port, int local);
void init_usb_transport(atransport *t, usb_handle *usb, int state);
#if ADB_HOST
atransport* find_emulator_transport_by_adb_port(int adb_port);
#endif
int service_to_fd(const char *name);
#if ADB_HOST
asocket *host_service_to_socket(const char* name, const char *serial);
#endif
#if !ADB_HOST
int init_jdwp(void);
asocket* create_jdwp_service_socket();
asocket* create_jdwp_tracker_service_socket();
int create_jdwp_connection_fd(int jdwp_pid);
#endif
int handle_forward_request(const char* service, transport_type ttype, char* serial, int reply_fd);
#if !ADB_HOST
void framebuffer_service(int fd, void *cookie);
// Allow enable-verity to write to system and vendor block devices
int make_block_device_writable(const char* dev);
void remount_service(int fd, void *cookie);
void set_verity_enabled_state_service(int fd, void* cookie);
#endif
/* packet allocator */
apacket *get_apacket(void);
void put_apacket(apacket *p);
// Define it if you want to dump packets.
#define DEBUG_PACKETS 0
#if !DEBUG_PACKETS
#define print_packet(tag,p) do {} while (0)
#endif
#if ADB_HOST_ON_TARGET
/* adb and adbd are coexisting on the target, so use 5038 for adb
* to avoid conflicting with adbd's usage of 5037
*/
# define DEFAULT_ADB_PORT 5038
#else
# define DEFAULT_ADB_PORT 5037
#endif
#define DEFAULT_ADB_LOCAL_TRANSPORT_PORT 5555
#define ADB_CLASS 0xff
#define ADB_SUBCLASS 0x42
#define ADB_PROTOCOL 0x1
void local_init(int port);
int local_connect(int port);
int local_connect_arbitrary_ports(int console_port, int adb_port);
/* usb host/client interface */
void usb_init();
void usb_cleanup();
int usb_write(usb_handle *h, const void *data, int len);
int usb_read(usb_handle *h, void *data, int len);
int usb_close(usb_handle *h);
void usb_kick(usb_handle *h);
/* used for USB device detection */
#if ADB_HOST
int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol);
#endif
int adb_commandline(int argc, const char **argv);
int connection_state(atransport *t);
#define CS_ANY -1
#define CS_OFFLINE 0
#define CS_BOOTLOADER 1
#define CS_DEVICE 2
#define CS_HOST 3
#define CS_RECOVERY 4
#define CS_NOPERM 5 /* Insufficient permissions to communicate with the device */
#define CS_SIDELOAD 6
#define CS_UNAUTHORIZED 7
extern const char *adb_device_banner;
extern int HOST;
extern int SHELL_EXIT_NOTIFY_FD;
typedef enum {
SUBPROC_PTY = 0,
SUBPROC_RAW = 1,
} subproc_mode;
#define CHUNK_SIZE (64*1024)
#if !ADB_HOST
#define USB_ADB_PATH "/dev/android_adb"
#define USB_FFS_ADB_PATH "/dev/usb-ffs/adb/"
#define USB_FFS_ADB_EP(x) USB_FFS_ADB_PATH#x
#define USB_FFS_ADB_EP0 USB_FFS_ADB_EP(ep0)
#define USB_FFS_ADB_OUT USB_FFS_ADB_EP(ep1)
#define USB_FFS_ADB_IN USB_FFS_ADB_EP(ep2)
#endif
int sendfailmsg(int fd, const char *reason);
int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s);
void handle_online(atransport *t);
void handle_offline(atransport *t);
void send_connect(atransport *t);
#ifdef __cplusplus
}
#endif
#endif
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