adb.h revision fd96db17b7f07eb6615af01fd1908b74383bf04b 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef __ADB_H
18#define __ADB_H
19
20#include <limits.h>
21
22#include "transport.h"  /* readx(), writex() */
23
24#define MAX_PAYLOAD 4096
25
26#define A_SYNC 0x434e5953
27#define A_CNXN 0x4e584e43
28#define A_OPEN 0x4e45504f
29#define A_OKAY 0x59414b4f
30#define A_CLSE 0x45534c43
31#define A_WRTE 0x45545257
32
33#define A_VERSION 0x01000000        // ADB protocol version
34
35#define ADB_VERSION_MAJOR 1         // Used for help/version information
36#define ADB_VERSION_MINOR 0         // Used for help/version information
37
38#define ADB_SERVER_VERSION    29    // Increment this when we want to force users to start a new adb server
39
40typedef struct amessage amessage;
41typedef struct apacket apacket;
42typedef struct asocket asocket;
43typedef struct alistener alistener;
44typedef struct aservice aservice;
45typedef struct atransport atransport;
46typedef struct adisconnect  adisconnect;
47typedef struct usb_handle usb_handle;
48
49struct amessage {
50    unsigned command;       /* command identifier constant      */
51    unsigned arg0;          /* first argument                   */
52    unsigned arg1;          /* second argument                  */
53    unsigned data_length;   /* length of payload (0 is allowed) */
54    unsigned data_check;    /* checksum of data payload         */
55    unsigned magic;         /* command ^ 0xffffffff             */
56};
57
58struct apacket
59{
60    apacket *next;
61
62    unsigned len;
63    unsigned char *ptr;
64
65    amessage msg;
66    unsigned char data[MAX_PAYLOAD];
67};
68
69/* An asocket represents one half of a connection between a local and
70** remote entity.  A local asocket is bound to a file descriptor.  A
71** remote asocket is bound to the protocol engine.
72*/
73struct asocket {
74        /* chain pointers for the local/remote list of
75        ** asockets that this asocket lives in
76        */
77    asocket *next;
78    asocket *prev;
79
80        /* the unique identifier for this asocket
81        */
82    unsigned id;
83
84        /* flag: set when the socket's peer has closed
85        ** but packets are still queued for delivery
86        */
87    int    closing;
88
89        /* flag: quit adbd when both ends close the
90        ** local service socket
91        */
92    int    exit_on_close;
93
94        /* the asocket we are connected to
95        */
96
97    asocket *peer;
98
99        /* For local asockets, the fde is used to bind
100        ** us to our fd event system.  For remote asockets
101        ** these fields are not used.
102        */
103    fdevent fde;
104    int fd;
105
106        /* queue of apackets waiting to be written
107        */
108    apacket *pkt_first;
109    apacket *pkt_last;
110
111        /* enqueue is called by our peer when it has data
112        ** for us.  It should return 0 if we can accept more
113        ** data or 1 if not.  If we return 1, we must call
114        ** peer->ready() when we once again are ready to
115        ** receive data.
116        */
117    int (*enqueue)(asocket *s, apacket *pkt);
118
119        /* ready is called by the peer when it is ready for
120        ** us to send data via enqueue again
121        */
122    void (*ready)(asocket *s);
123
124        /* close is called by the peer when it has gone away.
125        ** we are not allowed to make any further calls on the
126        ** peer once our close method is called.
127        */
128    void (*close)(asocket *s);
129
130        /* socket-type-specific extradata */
131    void *extra;
132
133    	/* A socket is bound to atransport */
134    atransport *transport;
135};
136
137
138/* the adisconnect structure is used to record a callback that
139** will be called whenever a transport is disconnected (e.g. by the user)
140** this should be used to cleanup objects that depend on the
141** transport (e.g. remote sockets, listeners, etc...)
142*/
143struct  adisconnect
144{
145    void        (*func)(void*  opaque, atransport*  t);
146    void*         opaque;
147    adisconnect*  next;
148    adisconnect*  prev;
149};
150
151
152/* a transport object models the connection to a remote device or emulator
153** there is one transport per connected device/emulator. a "local transport"
154** connects through TCP (for the emulator), while a "usb transport" through
155** USB (for real devices)
156**
157** note that kTransportHost doesn't really correspond to a real transport
158** object, it's a special value used to indicate that a client wants to
159** connect to a service implemented within the ADB server itself.
160*/
161typedef enum transport_type {
162        kTransportUsb,
163        kTransportLocal,
164        kTransportAny,
165        kTransportHost,
166} transport_type;
167
168struct atransport
169{
170    atransport *next;
171    atransport *prev;
172
173    int (*read_from_remote)(apacket *p, atransport *t);
174    int (*write_to_remote)(apacket *p, atransport *t);
175    void (*close)(atransport *t);
176    void (*kick)(atransport *t);
177
178    int fd;
179    int transport_socket;
180    fdevent transport_fde;
181    int ref_count;
182    unsigned sync_token;
183    int connection_state;
184    transport_type type;
185
186        /* usb handle or socket fd as needed */
187    usb_handle *usb;
188    int sfd;
189
190        /* used to identify transports for clients */
191    char *serial;
192    char *product;
193    char *devpath;
194    int adb_port; // Use for emulators (local transport)
195
196        /* a list of adisconnect callbacks called when the transport is kicked */
197    int          kicked;
198    adisconnect  disconnects;
199};
200
201
202/* A listener is an entity which binds to a local port
203** and, upon receiving a connection on that port, creates
204** an asocket to connect the new local connection to a
205** specific remote service.
206**
207** TODO: some listeners read from the new connection to
208** determine what exact service to connect to on the far
209** side.
210*/
211struct alistener
212{
213    alistener *next;
214    alistener *prev;
215
216    fdevent fde;
217    int fd;
218
219    const char *local_name;
220    const char *connect_to;
221    atransport *transport;
222    adisconnect  disconnect;
223};
224
225
226void print_packet(const char *label, apacket *p);
227
228asocket *find_local_socket(unsigned id);
229void install_local_socket(asocket *s);
230void remove_socket(asocket *s);
231void close_all_sockets(atransport *t);
232
233#define  LOCAL_CLIENT_PREFIX  "emulator-"
234
235asocket *create_local_socket(int fd);
236asocket *create_local_service_socket(const char *destination);
237
238asocket *create_remote_socket(unsigned id, atransport *t);
239void connect_to_remote(asocket *s, const char *destination);
240void connect_to_smartsocket(asocket *s);
241
242void fatal(const char *fmt, ...);
243void fatal_errno(const char *fmt, ...);
244
245void handle_packet(apacket *p, atransport *t);
246void send_packet(apacket *p, atransport *t);
247
248void get_my_path(char *s, size_t maxLen);
249int launch_server(int server_port);
250int adb_main(int is_daemon, int server_port);
251
252
253/* transports are ref-counted
254** get_device_transport does an acquire on your behalf before returning
255*/
256void init_transport_registration(void);
257int  list_transports(char *buf, size_t  bufsize, int show_devpath);
258void update_transports(void);
259
260asocket*  create_device_tracker(void);
261
262/* Obtain a transport from the available transports.
263** If state is != CS_ANY, only transports in that state are considered.
264** If serial is non-NULL then only the device with that serial will be chosen.
265** If no suitable transport is found, error is set.
266*/
267atransport *acquire_one_transport(int state, transport_type ttype, const char* serial, char **error_out);
268void   add_transport_disconnect( atransport*  t, adisconnect*  dis );
269void   remove_transport_disconnect( atransport*  t, adisconnect*  dis );
270void   run_transport_disconnects( atransport*  t );
271void   kick_transport( atransport*  t );
272
273/* initialize a transport object's func pointers and state */
274#if ADB_HOST
275int get_available_local_transport_index();
276#endif
277int  init_socket_transport(atransport *t, int s, int port, int local);
278void init_usb_transport(atransport *t, usb_handle *usb, int state);
279
280/* for MacOS X cleanup */
281void close_usb_devices();
282
283/* cause new transports to be init'd and added to the list */
284void register_socket_transport(int s, const char *serial, int port, int local);
285
286/* these should only be used for the "adb disconnect" command */
287void unregister_transport(atransport *t);
288void unregister_all_tcp_transports();
289
290void register_usb_transport(usb_handle *h, const char *serial, const char *devpath, unsigned writeable);
291
292/* this should only be used for transports with connection_state == CS_NOPERM */
293void unregister_usb_transport(usb_handle *usb);
294
295atransport *find_transport(const char *serial);
296#if ADB_HOST
297atransport* find_emulator_transport_by_adb_port(int adb_port);
298#endif
299
300int service_to_fd(const char *name);
301#if ADB_HOST
302asocket *host_service_to_socket(const char*  name, const char *serial);
303#endif
304
305#if !ADB_HOST
306int       init_jdwp(void);
307asocket*  create_jdwp_service_socket();
308asocket*  create_jdwp_tracker_service_socket();
309int       create_jdwp_connection_fd(int  jdwp_pid);
310#endif
311
312#if !ADB_HOST
313typedef enum {
314    BACKUP,
315    RESTORE
316} BackupOperation;
317int backup_service(BackupOperation operation, char* args);
318void framebuffer_service(int fd, void *cookie);
319void log_service(int fd, void *cookie);
320void remount_service(int fd, void *cookie);
321char * get_log_file_path(const char * log_name);
322#endif
323
324/* packet allocator */
325apacket *get_apacket(void);
326void put_apacket(apacket *p);
327
328int check_header(apacket *p);
329int check_data(apacket *p);
330
331/* define ADB_TRACE to 1 to enable tracing support, or 0 to disable it */
332
333#define  ADB_TRACE    1
334
335/* IMPORTANT: if you change the following list, don't
336 * forget to update the corresponding 'tags' table in
337 * the adb_trace_init() function implemented in adb.c
338 */
339typedef enum {
340    TRACE_ADB = 0,   /* 0x001 */
341    TRACE_SOCKETS,
342    TRACE_PACKETS,
343    TRACE_TRANSPORT,
344    TRACE_RWX,       /* 0x010 */
345    TRACE_USB,
346    TRACE_SYNC,
347    TRACE_SYSDEPS,
348    TRACE_JDWP,      /* 0x100 */
349    TRACE_SERVICES,
350} AdbTrace;
351
352#if ADB_TRACE
353
354#if !ADB_HOST
355/*
356 * When running inside the emulator, guest's adbd can connect to 'adb-debug'
357 * qemud service that can display adb trace messages (on condition that emulator
358 * has been started with '-debug adb' option).
359 */
360
361/* Delivers a trace message to the emulator via QEMU pipe. */
362void adb_qemu_trace(const char* fmt, ...);
363/* Macro to use to send ADB trace messages to the emulator. */
364#define DQ(...)    adb_qemu_trace(__VA_ARGS__)
365#else
366#define DQ(...) ((void)0)
367#endif  /* !ADB_HOST */
368
369  extern int     adb_trace_mask;
370  extern unsigned char    adb_trace_output_count;
371  void    adb_trace_init(void);
372
373#  define ADB_TRACING  ((adb_trace_mask & (1 << TRACE_TAG)) != 0)
374
375  /* you must define TRACE_TAG before using this macro */
376#  define  D(...)                                      \
377        do {                                           \
378            if (ADB_TRACING) {                         \
379                int save_errno = errno;                \
380                adb_mutex_lock(&D_lock);               \
381                fprintf(stderr, "%s::%s():",           \
382                        __FILE__, __FUNCTION__);       \
383                errno = save_errno;                    \
384                fprintf(stderr, __VA_ARGS__ );         \
385                fflush(stderr);                        \
386                adb_mutex_unlock(&D_lock);             \
387                errno = save_errno;                    \
388           }                                           \
389        } while (0)
390#  define  DR(...)                                     \
391        do {                                           \
392            if (ADB_TRACING) {                         \
393                int save_errno = errno;                \
394                adb_mutex_lock(&D_lock);               \
395                errno = save_errno;                    \
396                fprintf(stderr, __VA_ARGS__ );         \
397                fflush(stderr);                        \
398                adb_mutex_unlock(&D_lock);             \
399                errno = save_errno;                    \
400           }                                           \
401        } while (0)
402#else
403#  define  D(...)          ((void)0)
404#  define  DR(...)         ((void)0)
405#  define  ADB_TRACING     0
406#endif
407
408
409#if !TRACE_PACKETS
410#define print_packet(tag,p) do {} while (0)
411#endif
412
413#if ADB_HOST_ON_TARGET
414/* adb and adbd are coexisting on the target, so use 5038 for adb
415 * to avoid conflicting with adbd's usage of 5037
416 */
417#  define DEFAULT_ADB_PORT 5038
418#else
419#  define DEFAULT_ADB_PORT 5037
420#endif
421
422#define DEFAULT_ADB_LOCAL_TRANSPORT_PORT 5555
423
424#define ADB_CLASS              0xff
425#define ADB_SUBCLASS           0x42
426#define ADB_PROTOCOL           0x1
427
428
429void local_init(int port);
430int  local_connect(int  port);
431int  local_connect_arbitrary_ports(int console_port, int adb_port);
432
433/* usb host/client interface */
434void usb_init();
435void usb_cleanup();
436int usb_write(usb_handle *h, const void *data, int len);
437int usb_read(usb_handle *h, void *data, int len);
438int usb_close(usb_handle *h);
439void usb_kick(usb_handle *h);
440
441/* used for USB device detection */
442#if ADB_HOST
443int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol);
444#endif
445
446unsigned host_to_le32(unsigned n);
447int adb_commandline(int argc, char **argv);
448
449int connection_state(atransport *t);
450
451#define CS_ANY       -1
452#define CS_OFFLINE    0
453#define CS_BOOTLOADER 1
454#define CS_DEVICE     2
455#define CS_HOST       3
456#define CS_RECOVERY   4
457#define CS_NOPERM     5 /* Insufficient permissions to communicate with the device */
458#define CS_SIDELOAD   6
459
460extern int HOST;
461extern int SHELL_EXIT_NOTIFY_FD;
462
463#define CHUNK_SIZE (64*1024)
464
465#if !ADB_HOST
466#define USB_ADB_PATH     "/dev/android_adb"
467
468#define USB_FFS_ADB_PATH  "/dev/usb-ffs/adb/"
469#define USB_FFS_ADB_EP(x) USB_FFS_ADB_PATH#x
470
471#define USB_FFS_ADB_EP0   USB_FFS_ADB_EP(ep0)
472#define USB_FFS_ADB_OUT   USB_FFS_ADB_EP(ep1)
473#define USB_FFS_ADB_IN    USB_FFS_ADB_EP(ep2)
474#endif
475
476int sendfailmsg(int fd, const char *reason);
477int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s);
478
479#endif
480