20375
|
1 /*
|
|
2 * Copyright (c) 2014, 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.
|
|
8 *
|
|
9 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
12 * version 2 for more details (a copy is included in the LICENSE file that
|
|
13 * accompanied this code).
|
|
14 *
|
|
15 * You should have received a copy of the GNU General Public License version
|
|
16 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
18 *
|
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
20 * or visit www.oracle.com if you need additional information or have any
|
|
21 * questions.
|
|
22 *
|
|
23 */
|
|
24
|
|
25 #include "precompiled.hpp"
|
|
26 #include "classfile/classLoader.hpp"
|
|
27 #include "classfile/classLoaderData.inline.hpp"
|
|
28 #include "classfile/sharedPathsMiscInfo.hpp"
|
|
29 #include "memory/allocation.inline.hpp"
|
|
30 #include "memory/metaspaceShared.hpp"
|
|
31 #include "runtime/arguments.hpp"
|
|
32
|
|
33 void SharedPathsMiscInfo::add_path(const char* path, int type) {
|
|
34 if (TraceClassPaths) {
|
|
35 tty->print("[type=%s] ", type_name(type));
|
|
36 trace_class_path("[Add misc shared path ", path);
|
|
37 }
|
|
38 write(path, strlen(path) + 1);
|
|
39 write_jint(jint(type));
|
|
40 }
|
|
41
|
|
42 void SharedPathsMiscInfo::ensure_size(size_t needed_bytes) {
|
|
43 assert(_allocated, "cannot modify buffer during validation.");
|
|
44 int used = get_used_bytes();
|
|
45 int target = used + int(needed_bytes);
|
|
46 if (target > _buf_size) {
|
|
47 _buf_size = _buf_size * 2 + (int)needed_bytes;
|
|
48 _buf_start = REALLOC_C_HEAP_ARRAY(char, _buf_start, _buf_size, mtClass);
|
|
49 _cur_ptr = _buf_start + used;
|
|
50 _end_ptr = _buf_start + _buf_size;
|
|
51 }
|
|
52 }
|
|
53
|
|
54 void SharedPathsMiscInfo::write(const void* ptr, size_t size) {
|
|
55 ensure_size(size);
|
|
56 memcpy(_cur_ptr, ptr, size);
|
|
57 _cur_ptr += size;
|
|
58 }
|
|
59
|
|
60 bool SharedPathsMiscInfo::read(void* ptr, size_t size) {
|
|
61 if (_cur_ptr + size <= _end_ptr) {
|
|
62 memcpy(ptr, _cur_ptr, size);
|
|
63 _cur_ptr += size;
|
|
64 return true;
|
|
65 }
|
|
66 return false;
|
|
67 }
|
|
68
|
|
69 bool SharedPathsMiscInfo::fail(const char* msg, const char* name) {
|
|
70 ClassLoader::trace_class_path(msg, name);
|
|
71 MetaspaceShared::set_archive_loading_failed();
|
|
72 return false;
|
|
73 }
|
|
74
|
|
75 bool SharedPathsMiscInfo::check() {
|
|
76 // The whole buffer must be 0 terminated so that we can use strlen and strcmp
|
|
77 // without fear.
|
|
78 _end_ptr -= sizeof(jint);
|
|
79 if (_cur_ptr >= _end_ptr) {
|
|
80 return fail("Truncated archive file header");
|
|
81 }
|
|
82 if (*_end_ptr != 0) {
|
|
83 return fail("Corrupted archive file header");
|
|
84 }
|
|
85
|
|
86 while (_cur_ptr < _end_ptr) {
|
|
87 jint type;
|
|
88 const char* path = _cur_ptr;
|
|
89 _cur_ptr += strlen(path) + 1;
|
|
90 if (!read_jint(&type)) {
|
|
91 return fail("Corrupted archive file header");
|
|
92 }
|
|
93 if (TraceClassPaths) {
|
|
94 tty->print("[type=%s ", type_name(type));
|
|
95 print_path(tty, type, path);
|
|
96 tty->print_cr("]");
|
|
97 }
|
|
98 if (!check(type, path)) {
|
|
99 if (!PrintSharedArchiveAndExit) {
|
|
100 return false;
|
|
101 }
|
|
102 } else {
|
|
103 trace_class_path("[ok");
|
|
104 }
|
|
105 }
|
|
106
|
|
107 return true;
|
|
108 }
|
|
109
|
|
110 bool SharedPathsMiscInfo::check(jint type, const char* path) {
|
|
111 switch (type) {
|
|
112 case BOOT:
|
|
113 if (strcmp(path, Arguments::get_sysclasspath()) != 0) {
|
|
114 return fail("[BOOT classpath mismatch, actual: -Dsun.boot.class.path=", Arguments::get_sysclasspath());
|
|
115 }
|
|
116 break;
|
|
117 case NON_EXIST: // fall-through
|
|
118 case REQUIRED:
|
|
119 {
|
|
120 struct stat st;
|
|
121 if (os::stat(path, &st) != 0) {
|
|
122 // The file does not actually exist
|
|
123 if (type == REQUIRED) {
|
|
124 // but we require it to exist -> fail
|
|
125 return fail("Required file doesn't exist");
|
|
126 }
|
|
127 } else {
|
|
128 // The file actually exists
|
|
129 if (type == NON_EXIST) {
|
|
130 // But we want it to not exist -> fail
|
|
131 return fail("File must not exist");
|
|
132 }
|
|
133 time_t timestamp;
|
|
134 long filesize;
|
|
135
|
|
136 if (!read_time(×tamp) || !read_long(&filesize)) {
|
|
137 return fail("Corrupted archive file header");
|
|
138 }
|
|
139 if (timestamp != st.st_mtime) {
|
|
140 return fail("Timestamp mismatch");
|
|
141 }
|
20376
|
142 if (filesize != st.st_size) {
|
20375
|
143 return fail("File size mismatch");
|
|
144 }
|
|
145 }
|
|
146 }
|
|
147 break;
|
|
148
|
|
149 default:
|
|
150 return fail("Corrupted archive file header");
|
|
151 }
|
|
152
|
|
153 return true;
|
|
154 }
|