1/*
2 * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26/*
27 * Java Debug Wire Protocol Transport Service Provider Interface.
28 */
29
30#ifndef JDWPTRANSPORT_H
31#define JDWPTRANSPORT_H
32
33#include "jni.h"
34
35enum {
36 JDWPTRANSPORT_VERSION_1_0 = 0x00010000,
37 JDWPTRANSPORT_VERSION_1_1 = 0x00010001
38};
39
40#ifdef __cplusplus
41extern "C" {
42#endif
43
44struct jdwpTransportNativeInterface_;
45
46struct _jdwpTransportEnv;
47
48#ifdef __cplusplus
49typedef _jdwpTransportEnv jdwpTransportEnv;
50#else
51typedef const struct jdwpTransportNativeInterface_ *jdwpTransportEnv;
52#endif /* __cplusplus */
53
54/*
55 * Errors. Universal errors with JVMTI/JVMDI equivalents keep the
56 * values the same.
57 */
58typedef enum {
59 JDWPTRANSPORT_ERROR_NONE = 0,
60 JDWPTRANSPORT_ERROR_ILLEGAL_ARGUMENT = 103,
61 JDWPTRANSPORT_ERROR_OUT_OF_MEMORY = 110,
62 JDWPTRANSPORT_ERROR_INTERNAL = 113,
63 JDWPTRANSPORT_ERROR_ILLEGAL_STATE = 201,
64 JDWPTRANSPORT_ERROR_IO_ERROR = 202,
65 JDWPTRANSPORT_ERROR_TIMEOUT = 203,
66 JDWPTRANSPORT_ERROR_MSG_NOT_AVAILABLE = 204
67} jdwpTransportError;
68
69
70/*
71 * Structure to define capabilities
72 */
73typedef struct {
74 unsigned int can_timeout_attach :1;
75 unsigned int can_timeout_accept :1;
76 unsigned int can_timeout_handshake :1;
77 unsigned int reserved3 :1;
78 unsigned int reserved4 :1;
79 unsigned int reserved5 :1;
80 unsigned int reserved6 :1;
81 unsigned int reserved7 :1;
82 unsigned int reserved8 :1;
83 unsigned int reserved9 :1;
84 unsigned int reserved10 :1;
85 unsigned int reserved11 :1;
86 unsigned int reserved12 :1;
87 unsigned int reserved13 :1;
88 unsigned int reserved14 :1;
89 unsigned int reserved15 :1;
90} JDWPTransportCapabilities;
91
92
93/*
94 * Structures to define packet layout.
95 *
96 * See: http://java.sun.com/j2se/1.5/docs/guide/jpda/jdwp-spec.html
97 */
98
99#define JDWP_HEADER_SIZE 11
100
101enum {
102 /*
103 * If additional flags are added that apply to jdwpCmdPacket,
104 * then debugLoop.c: reader() will need to be updated to
105 * accept more than JDWPTRANSPORT_FLAGS_NONE.
106 */
107 JDWPTRANSPORT_FLAGS_NONE = 0x0,
108 JDWPTRANSPORT_FLAGS_REPLY = 0x80
109};
110
111typedef struct {
112 jint len;
113 jint id;
114 jbyte flags;
115 jbyte cmdSet;
116 jbyte cmd;
117 jbyte *data;
118} jdwpCmdPacket;
119
120typedef struct {
121 jint len;
122 jint id;
123 jbyte flags;
124 jshort errorCode;
125 jbyte *data;
126} jdwpReplyPacket;
127
128typedef struct {
129 union {
130 jdwpCmdPacket cmd;
131 jdwpReplyPacket reply;
132 } type;
133} jdwpPacket;
134
135/*
136 * JDWP functions called by the transport.
137 */
138typedef struct jdwpTransportCallback {
139 void *(*alloc)(jint numBytes); /* Call this for all allocations */
140 void (*free)(void *buffer); /* Call this for all deallocations */
141} jdwpTransportCallback;
142
143typedef jint (JNICALL *jdwpTransport_OnLoad_t)(JavaVM *jvm,
144 jdwpTransportCallback *callback,
145 jint version,
146 jdwpTransportEnv** env);
147
148/*
149 * JDWP transport configuration from the agent.
150 */
151typedef struct jdwpTransportConfiguration {
152 /* Field added in JDWPTRANSPORT_VERSION_1_1: */
153 const char* allowed_peers; /* Peers allowed for connection */
154} jdwpTransportConfiguration;
155
156
157/* Function Interface */
158
159struct jdwpTransportNativeInterface_ {
160 /* 1 : RESERVED */
161 void *reserved1;
162
163 /* 2 : Get Capabilities */
164 jdwpTransportError (JNICALL *GetCapabilities)(jdwpTransportEnv* env,
165 JDWPTransportCapabilities *capabilities_ptr);
166
167 /* 3 : Attach */
168 jdwpTransportError (JNICALL *Attach)(jdwpTransportEnv* env,
169 const char* address,
170 jlong attach_timeout,
171 jlong handshake_timeout);
172
173 /* 4: StartListening */
174 jdwpTransportError (JNICALL *StartListening)(jdwpTransportEnv* env,
175 const char* address,
176 char** actual_address);
177
178 /* 5: StopListening */
179 jdwpTransportError (JNICALL *StopListening)(jdwpTransportEnv* env);
180
181 /* 6: Accept */
182 jdwpTransportError (JNICALL *Accept)(jdwpTransportEnv* env,
183 jlong accept_timeout,
184 jlong handshake_timeout);
185
186 /* 7: IsOpen */
187 jboolean (JNICALL *IsOpen)(jdwpTransportEnv* env);
188
189 /* 8: Close */
190 jdwpTransportError (JNICALL *Close)(jdwpTransportEnv* env);
191
192 /* 9: ReadPacket */
193 jdwpTransportError (JNICALL *ReadPacket)(jdwpTransportEnv* env,
194 jdwpPacket *pkt);
195
196 /* 10: Write Packet */
197 jdwpTransportError (JNICALL *WritePacket)(jdwpTransportEnv* env,
198 const jdwpPacket* pkt);
199
200 /* 11: GetLastError */
201 jdwpTransportError (JNICALL *GetLastError)(jdwpTransportEnv* env,
202 char** error);
203
204 /* 12: SetTransportConfiguration added in JDWPTRANSPORT_VERSION_1_1 */
205 jdwpTransportError (JNICALL *SetTransportConfiguration)(jdwpTransportEnv* env,
206 jdwpTransportConfiguration *config);
207};
208
209
210/*
211 * Use inlined functions so that C++ code can use syntax such as
212 * env->Attach("mymachine:5000", 10*1000, 0);
213 *
214 * rather than using C's :-
215 *
216 * (*env)->Attach(env, "mymachine:5000", 10*1000, 0);
217 */
218struct _jdwpTransportEnv {
219 const struct jdwpTransportNativeInterface_ *functions;
220#ifdef __cplusplus
221
222 jdwpTransportError GetCapabilities(JDWPTransportCapabilities *capabilities_ptr) {
223 return functions->GetCapabilities(this, capabilities_ptr);
224 }
225
226 jdwpTransportError Attach(const char* address, jlong attach_timeout,
227 jlong handshake_timeout) {
228 return functions->Attach(this, address, attach_timeout, handshake_timeout);
229 }
230
231 jdwpTransportError StartListening(const char* address,
232 char** actual_address) {
233 return functions->StartListening(this, address, actual_address);
234 }
235
236 jdwpTransportError StopListening(void) {
237 return functions->StopListening(this);
238 }
239
240 jdwpTransportError Accept(jlong accept_timeout, jlong handshake_timeout) {
241 return functions->Accept(this, accept_timeout, handshake_timeout);
242 }
243
244 jboolean IsOpen(void) {
245 return functions->IsOpen(this);
246 }
247
248 jdwpTransportError Close(void) {
249 return functions->Close(this);
250 }
251
252 jdwpTransportError ReadPacket(jdwpPacket *pkt) {
253 return functions->ReadPacket(this, pkt);
254 }
255
256 jdwpTransportError WritePacket(const jdwpPacket* pkt) {
257 return functions->WritePacket(this, pkt);
258 }
259
260 jdwpTransportError GetLastError(char** error) {
261 return functions->GetLastError(this, error);
262 }
263
264 /* SetTransportConfiguration added in JDWPTRANSPORT_VERSION_1_1 */
265 jdwpTransportError SetTransportConfiguration(jdwpTransportEnv* env,
266 return functions->SetTransportConfiguration(this, config);
267 }
268
269#endif /* __cplusplus */
270};
271
272#ifdef __cplusplus
273} /* extern "C" */
274#endif /* __cplusplus */
275
276#endif /* JDWPTRANSPORT_H */
277