adb.h revision 2ca3e6b35f79136418ebc32fef57580698dbd045 
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        /* the asocket we are connected to
90        */
91
92    asocket *peer;
93
94        /* For local asockets, the fde is used to bind
95        ** us to our fd event system.  For remote asockets
96        ** these fields are not used.
97        */
98    fdevent fde;
99    int fd;
100
101        /* queue of apackets waiting to be written
102        */
103    apacket *pkt_first;
104    apacket *pkt_last;
105
106        /* enqueue is called by our peer when it has data
107        ** for us.  It should return 0 if we can accept more
108        ** data or 1 if not.  If we return 1, we must call
109        ** peer->ready() when we once again are ready to
110        ** receive data.
111        */
112    int (*enqueue)(asocket *s, apacket *pkt);
113
114        /* ready is called by the peer when it is ready for
115        ** us to send data via enqueue again
116        */
117    void (*ready)(asocket *s);
118
119        /* close is called by the peer when it has gone away.
120        ** we are not allowed to make any further calls on the
121        ** peer once our close method is called.
122        */
123    void (*close)(asocket *s);
124
125        /* socket-type-specific extradata */
126    void *extra;
127
128    	/* A socket is bound to atransport */
129    atransport *transport;
130};
131
132
133/* the adisconnect structure is used to record a callback that
134** will be called whenever a transport is disconnected (e.g. by the user)
135** this should be used to cleanup objects that depend on the
136** transport (e.g. remote sockets, listeners, etc...)
137*/
138struct  adisconnect
139{
140    void        (*func)(void*  opaque, atransport*  t);
141    void*         opaque;
142    adisconnect*  next;
143    adisconnect*  prev;
144};
145
146
147/* a transport object models the connection to a remote device or emulator
148** there is one transport per connected device/emulator. a "local transport"
149** connects through TCP (for the emulator), while a "usb transport" through
150** USB (for real devices)
151**
152** note that kTransportHost doesn't really correspond to a real transport
153** object, it's a special value used to indicate that a client wants to
154** connect to a service implemented within the ADB server itself.
155*/
156typedef enum transport_type {
157        kTransportUsb,
158        kTransportLocal,
159        kTransportAny,
160        kTransportHost,
161} transport_type;
162
163struct atransport
164{
165    atransport *next;
166    atransport *prev;
167
168    int (*read_from_remote)(apacket *p, atransport *t);
169    int (*write_to_remote)(apacket *p, atransport *t);
170    void (*close)(atransport *t);
171    void (*kick)(atransport *t);
172
173    int fd;
174    int transport_socket;
175    fdevent transport_fde;
176    int ref_count;
177    unsigned sync_token;
178    int connection_state;
179    transport_type type;
180
181        /* usb handle or socket fd as needed */
182    usb_handle *usb;
183    int sfd;
184
185        /* used to identify transports for clients */
186    char *serial;
187    char *product;
188    char *model;
189    char *device;
190    char *devpath;
191    int adb_port; // Use for emulators (local transport)
192
193        /* a list of adisconnect callbacks called when the transport is kicked */
194    int          kicked;
195    adisconnect  disconnects;
196};
197
198
199/* A listener is an entity which binds to a local port
200** and, upon receiving a connection on that port, creates
201** an asocket to connect the new local connection to a
202** specific remote service.
203**
204** TODO: some listeners read from the new connection to
205** determine what exact service to connect to on the far
206** side.
207*/
208struct alistener
209{
210    alistener *next;
211    alistener *prev;
212
213    fdevent fde;
214    int fd;
215
216    const char *local_name;
217    const char *connect_to;
218    atransport *transport;
219    adisconnect  disconnect;
220};
221
222
223void print_packet(const char *label, apacket *p);
224
225asocket *find_local_socket(unsigned id);
226void install_local_socket(asocket *s);
227void remove_socket(asocket *s);
228void close_all_sockets(atransport *t);
229
230#define  LOCAL_CLIENT_PREFIX  "emulator-"
231
232asocket *create_local_socket(int fd);
233asocket *create_local_service_socket(const char *destination);
234
235asocket *create_remote_socket(unsigned id, atransport *t);
236void connect_to_remote(asocket *s, const char *destination);
237void connect_to_smartsocket(asocket *s);
238
239void fatal(const char *fmt, ...);
240void fatal_errno(const char *fmt, ...);
241
242void handle_packet(apacket *p, atransport *t);
243void send_packet(apacket *p, atransport *t);
244
245void get_my_path(char *s, size_t maxLen);
246int launch_server(int server_port);
247int adb_main(int is_daemon, int server_port);
248
249
250/* transports are ref-counted
251** get_device_transport does an acquire on your behalf before returning
252*/
253void init_transport_registration(void);
254int  list_transports(char *buf, size_t  bufsize, int long_listing);
255void update_transports(void);
256
257asocket*  create_device_tracker(void);
258
259/* Obtain a transport from the available transports.
260** If state is != CS_ANY, only transports in that state are considered.
261** If serial is non-NULL then only the device with that serial will be chosen.
262** If no suitable transport is found, error is set.
263*/
264atransport *acquire_one_transport(int state, transport_type ttype, const char* serial, char **error_out);
265void   add_transport_disconnect( atransport*  t, adisconnect*  dis );
266void   remove_transport_disconnect( atransport*  t, adisconnect*  dis );
267void   run_transport_disconnects( atransport*  t );
268void   kick_transport( atransport*  t );
269
270/* initialize a transport object's func pointers and state */
271#if ADB_HOST
272int get_available_local_transport_index();
273#endif
274int  init_socket_transport(atransport *t, int s, int port, int local);
275void init_usb_transport(atransport *t, usb_handle *usb, int state);
276
277/* for MacOS X cleanup */
278void close_usb_devices();
279
280/* cause new transports to be init'd and added to the list */
281void register_socket_transport(int s, const char *serial, int port, int local);
282
283/* these should only be used for the "adb disconnect" command */
284void unregister_transport(atransport *t);
285void unregister_all_tcp_transports();
286
287void register_usb_transport(usb_handle *h, const char *serial, const char *devpath, unsigned writeable);
288
289/* this should only be used for transports with connection_state == CS_NOPERM */
290void unregister_usb_transport(usb_handle *usb);
291
292atransport *find_transport(const char *serial);
293#if ADB_HOST
294atransport* find_emulator_transport_by_adb_port(int adb_port);
295#endif
296
297int service_to_fd(const char *name);
298#if ADB_HOST
299asocket *host_service_to_socket(const char*  name, const char *serial);
300#endif
301
302#if !ADB_HOST
303int       init_jdwp(void);
304asocket*  create_jdwp_service_socket();
305asocket*  create_jdwp_tracker_service_socket();
306int       create_jdwp_connection_fd(int  jdwp_pid);
307#endif
308
309#if !ADB_HOST
310typedef enum {
311    BACKUP,
312    RESTORE
313} BackupOperation;
314int backup_service(BackupOperation operation, char* args);
315void framebuffer_service(int fd, void *cookie);
316void log_service(int fd, void *cookie);
317void remount_service(int fd, void *cookie);
318char * get_log_file_path(const char * log_name);
319#endif
320
321/* packet allocator */
322apacket *get_apacket(void);
323void put_apacket(apacket *p);
324
325int check_header(apacket *p);
326int check_data(apacket *p);
327
328/* define ADB_TRACE to 1 to enable tracing support, or 0 to disable it */
329
330#define  ADB_TRACE    1
331
332/* IMPORTANT: if you change the following list, don't
333 * forget to update the corresponding 'tags' table in
334 * the adb_trace_init() function implemented in adb.c
335 */
336typedef enum {
337    TRACE_ADB = 0,   /* 0x001 */
338    TRACE_SOCKETS,
339    TRACE_PACKETS,
340    TRACE_TRANSPORT,
341    TRACE_RWX,       /* 0x010 */
342    TRACE_USB,
343    TRACE_SYNC,
344    TRACE_SYSDEPS,
345    TRACE_JDWP,      /* 0x100 */
346    TRACE_SERVICES,
347} AdbTrace;
348
349#if ADB_TRACE
350
351  extern int     adb_trace_mask;
352  extern unsigned char    adb_trace_output_count;
353  void    adb_trace_init(void);
354
355#  define ADB_TRACING  ((adb_trace_mask & (1 << TRACE_TAG)) != 0)
356
357  /* you must define TRACE_TAG before using this macro */
358#  define  D(...)                                      \
359        do {                                           \
360            if (ADB_TRACING) {                         \
361                int save_errno = errno;                \
362                adb_mutex_lock(&D_lock);               \
363                fprintf(stderr, "%s::%s():",           \
364                        __FILE__, __FUNCTION__);       \
365                errno = save_errno;                    \
366                fprintf(stderr, __VA_ARGS__ );         \
367                fflush(stderr);                        \
368                adb_mutex_unlock(&D_lock);             \
369                errno = save_errno;                    \
370           }                                           \
371        } while (0)
372#  define  DR(...)                                     \
373        do {                                           \
374            if (ADB_TRACING) {                         \
375                int save_errno = errno;                \
376                adb_mutex_lock(&D_lock);               \
377                errno = save_errno;                    \
378                fprintf(stderr, __VA_ARGS__ );         \
379                fflush(stderr);                        \
380                adb_mutex_unlock(&D_lock);             \
381                errno = save_errno;                    \
382           }                                           \
383        } while (0)
384#else
385#  define  D(...)          ((void)0)
386#  define  DR(...)         ((void)0)
387#  define  ADB_TRACING     0
388#endif
389
390
391#if !TRACE_PACKETS
392#define print_packet(tag,p) do {} while (0)
393#endif
394
395#if ADB_HOST_ON_TARGET
396/* adb and adbd are coexisting on the target, so use 5038 for adb
397 * to avoid conflicting with adbd's usage of 5037
398 */
399#  define DEFAULT_ADB_PORT 5038
400#else
401#  define DEFAULT_ADB_PORT 5037
402#endif
403
404#define DEFAULT_ADB_LOCAL_TRANSPORT_PORT 5555
405
406#define ADB_CLASS              0xff
407#define ADB_SUBCLASS           0x42
408#define ADB_PROTOCOL           0x1
409
410
411void local_init(int port);
412int  local_connect(int  port);
413int  local_connect_arbitrary_ports(int console_port, int adb_port);
414
415/* usb host/client interface */
416void usb_init();
417void usb_cleanup();
418int usb_write(usb_handle *h, const void *data, int len);
419int usb_read(usb_handle *h, void *data, int len);
420int usb_close(usb_handle *h);
421void usb_kick(usb_handle *h);
422
423/* used for USB device detection */
424#if ADB_HOST
425int is_adb_interface(int vid, int pid, int usb_class, int usb_subclass, int usb_protocol);
426#endif
427
428unsigned host_to_le32(unsigned n);
429int adb_commandline(int argc, char **argv);
430
431int connection_state(atransport *t);
432
433#define CS_ANY       -1
434#define CS_OFFLINE    0
435#define CS_BOOTLOADER 1
436#define CS_DEVICE     2
437#define CS_HOST       3
438#define CS_RECOVERY   4
439#define CS_NOPERM     5 /* Insufficient permissions to communicate with the device */
440
441extern int HOST;
442extern int SHELL_EXIT_NOTIFY_FD;
443
444#define CHUNK_SIZE (64*1024)
445
446int sendfailmsg(int fd, const char *reason);
447int handle_host_request(char *service, transport_type ttype, char* serial, int reply_fd, asocket *s);
448
449#endif
450