-
Notifications
You must be signed in to change notification settings - Fork 3
/
adb.c
203 lines (186 loc) · 5.73 KB
/
adb.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
/*
* "Raw" backend.
*/
#include <stdio.h>
#include <stdlib.h>
#include "raw.h"
typedef struct adb_backend_data {
struct raw_backend_data;
int state;
} *Adb;
/* member functions in Backend */
static const char *
adb_init(void *, void **, Config *, char *, int, char **, int, int);
#define adb_free raw_free
#define adb_reconfig raw_reconfig
#define adb_send raw_send
#define adb_sendbuffer raw_sendbuffer
#define adb_size raw_size
#define adb_special raw_special
#define adb_get_specials raw_get_specials
#define adb_connected raw_connected
#define adb_exitcode raw_exitcode
#define adb_sendok raw_sendok
#define adb_ldisc ((int (*)(void *, int))raw_stub_false)
#define adb_provide_ldisc raw_provide_ldisc
#define adb_provide_logctx raw_provide_logctx
#define adb_unthrottle raw_unthrottle
#define adb_cfg_info raw_cfg_info
/* member functions in plug function table */
#define adb_log raw_log
#define adb_closing raw_closing
static int adb_receive(Plug, int, char *, int);
#define adb_sent raw_sent
static int adb_receive(Plug plug, int urgent, char *data, int len)
{
Adb adb = (Adb) plug;
if (adb->state==1) {
if (data[0]=='O') { // OKAY
sk_write(adb->s,"0006shell:",10);
adb->state=2; // wait for shell start response
} else {
if (data[0]=='F') {
char* d = (char*)smalloc(len+1);
memcpy(d,data,len);
d[len]='\0';
connection_fatal(adb->frontend, "%s", d+8);
sfree(d);
} else {
connection_fatal(adb->frontend, "Bad response");
}
return 0;
}
} else if (adb->state==2) {
if (data[0]=='O') { //OKAY
adb->state=3; // shell started, switch to terminal mode
} else {
if (data[0]=='F') {
char* d = (char*)smalloc(len+1);
memcpy(d,data,len);
d[len]='\0';
connection_fatal(adb->frontend, "%s", d+8);
sfree(d);
} else {
connection_fatal(adb->frontend, "Bad response");
}
return 0;
}
} else {
c_write((Raw)adb, data, len);
}
return 1;
}
/*
* Called to set up the adb connection.
*
* Returns an error message, or NULL on success.
*
* Also places the canonical host name into `realhost'. It must be
* freed by the caller.
*/
static const char *adb_init(void *frontend_handle, void **backend_handle,
Config *cfg,
char *host, int port, char **realhost, int nodelay,
int keepalive)
{
static const struct plug_function_table fn_table = {
adb_log,
adb_closing,
adb_receive,
adb_sent
};
SockAddr addr;
const char *err;
Adb adb;
adb = snew(struct adb_backend_data);
adb->fn = &fn_table;
adb->s = NULL;
adb->state = 0;
*backend_handle = adb;
adb->frontend = frontend_handle;
/*
* Try to find host.
*/
{
char *buf;
buf = dupprintf("Looking up host \"%s\"%s", "localhost",
(cfg->addressfamily == ADDRTYPE_IPV4 ? " (IPv4)" :
(cfg->addressfamily == ADDRTYPE_IPV6 ? " (IPv6)" :
"")));
logevent(adb->frontend, buf);
sfree(buf);
}
addr = name_lookup("localhost", port, realhost, cfg, cfg->addressfamily);
if ((err = sk_addr_error(addr)) != NULL) {
sk_addr_free(addr);
return err;
}
if (port < 0)
port = 5037; /* default adb port */
/*
* Open socket.
*/
adb->s = new_connection(addr, *realhost, port, 0, 1, nodelay, keepalive,
(Plug) adb, cfg);
if ((err = sk_socket_error(adb->s)) != NULL)
return err;
if (*cfg->loghost) {
char *colon;
sfree(*realhost);
*realhost = dupstr(cfg->loghost);
colon = strrchr(*realhost, ':');
if (colon) {
/*
* FIXME: if we ever update this aspect of ssh.c for
* IPv6 literal management, this should change in line
* with it.
*/
*colon++ = '\0';
}
}
/* send initial data to adb server */
#define ADB_SHELL_DEFAULT_STR "0012" "host:transport-usb"
#define ADB_SHELL_DEFAULT_STR_LEN (sizeof(ADB_SHELL_DEFAULT_STR)-1)
#define ADB_SHELL_SERIAL_PREFIX "host:transport:"
#define ADB_SHELL_SERIAL_PREFIX_LEN (sizeof(ADB_SHELL_SERIAL_PREFIX)-1)
do {
size_t len = strlen(host);
if (len == 0) {
sk_write(adb->s, ADB_SHELL_DEFAULT_STR, ADB_SHELL_DEFAULT_STR_LEN);
} else {
char sendbuf[512];
#define ADB_SHELL_HOST_MAX_LEN \
(sizeof(sendbuf)-4-ADB_SHELL_SERIAL_PREFIX_LEN-1)
if (len > ADB_SHELL_HOST_MAX_LEN)
len = ADB_SHELL_HOST_MAX_LEN;
sprintf(sendbuf,"%04x" ADB_SHELL_SERIAL_PREFIX,
len+ADB_SHELL_SERIAL_PREFIX_LEN);
memcpy(sendbuf+4+ADB_SHELL_SERIAL_PREFIX_LEN, host, len);
sk_write(adb->s,sendbuf,len+4+ADB_SHELL_SERIAL_PREFIX_LEN);
}
} while (0);
sk_flush(adb->s);
adb->state = 1;
return NULL;
}
Backend adb_backend = {
adb_init,
adb_free,
adb_reconfig,
adb_send,
adb_sendbuffer,
adb_size,
adb_special,
adb_get_specials,
adb_connected,
adb_exitcode,
adb_sendok,
adb_ldisc,
adb_provide_ldisc,
adb_provide_logctx,
adb_unthrottle,
adb_cfg_info,
"adb",
PROT_ADB,
5037
};