1 /*
2 * Copyright (c) 1997, 2012, 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 #ifndef NET_UTILS_MD_H
27 #define NET_UTILS_MD_H
28
29 #include <sys/socket.h>
30 #include <sys/types.h>
31 #include <netdb.h>
32 #include <netinet/in.h>
33 #include <unistd.h>
34
35 #include <sys/poll.h>
36
37 int NET_Timeout(int s, long timeout);
38 int NET_Read(int s, void* buf, size_t len);
39 int NET_RecvFrom(int s, void *buf, int len, unsigned int flags,
40 struct sockaddr *from, socklen_t *fromlen);
41 int NET_ReadV(int s, const struct iovec * vector, int count);
42 int NET_Send(int s, void *msg, int len, unsigned int flags);
43 int NET_SendTo(int s, const void *msg, int len, unsigned int
44 flags, const struct sockaddr *to, int tolen);
45 int NET_Writev(int s, const struct iovec * vector, int count);
46 int NET_Connect(int s, struct sockaddr *addr, int addrlen);
47 int NET_Accept(int s, struct sockaddr *addr, socklen_t *addrlen);
48 int NET_SocketClose(int s);
49 int NET_Dup2(int oldfd, int newfd);
50 int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout);
51 int NET_SocketAvailable(int s, jint *pbytes);
52
53 void NET_ThrowUnknownHostExceptionWithGaiError(JNIEnv *env,
54 const char* hostname,
55 int gai_error);
56 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name,
57 const char *defaultDetail);
58
59 #define NET_WAIT_READ 0x01
60 #define NET_WAIT_WRITE 0x02
61 #define NET_WAIT_CONNECT 0x04
62
63 jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout);
64
65 /************************************************************************
66 * Macros and constants
67 */
68
69 /*
70 * On 64-bit JDKs we use a much larger stack and heap buffer.
71 */
72 #ifdef _LP64
73 #define MAX_BUFFER_LEN 65536
74 #define MAX_HEAP_BUFFER_LEN 131072
75 #else
76 #define MAX_BUFFER_LEN 8192
77 #define MAX_HEAP_BUFFER_LEN 65536
78 #endif
79
80 #ifdef AF_INET6
81
82 #define SOCKADDR union { \
83 struct sockaddr_in him4; \
84 struct sockaddr_in6 him6; \
85 }
86
87 #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \
88 sizeof(struct sockaddr_in))
89
90 #else
91
92 #define SOCKADDR union { struct sockaddr_in him4; }
93 #define SOCKADDR_LEN sizeof(SOCKADDR)
94
95 #endif
96
97 /************************************************************************
98 * Utilities
99 */
100
101 #ifdef __linux__
102 int kernelIsV24();
103 #ifdef AF_INET6
104 int getDefaultIPv6Interface(struct in6_addr *target_addr);
105 #endif
106 #endif
107
108 #ifdef __solaris__
109 int net_getParam(char *driver, char *param);
110
111 #ifndef SO_FLOW_SLA
112 #define SO_FLOW_SLA 0x1018
113
114 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
115 #pragma pack(4)
116 #endif
117
118 /*
119 * Used with the setsockopt(SO_FLOW_SLA, ...) call to set
120 * per socket service level properties.
121 * When the application uses per-socket API, we will enforce the properties
122 * on both outbound and inbound packets.
123 *
124 * For now, only priority and maxbw are supported in SOCK_FLOW_PROP_VERSION1.
125 */
126 typedef struct sock_flow_props_s {
127 int sfp_version;
128 uint32_t sfp_mask;
129 int sfp_priority; /* flow priority */
130 uint64_t sfp_maxbw; /* bandwidth limit in bps */
131 int sfp_status; /* flow create status for getsockopt */
132 } sock_flow_props_t;
133
134 #define SOCK_FLOW_PROP_VERSION1 1
135
136 /* bit mask values for sfp_mask */
137 #define SFP_MAXBW 0x00000001 /* Flow Bandwidth Limit */
138 #define SFP_PRIORITY 0x00000008 /* Flow priority */
139
140 /* possible values for sfp_priority */
141 #define SFP_PRIO_NORMAL 1
142 #define SFP_PRIO_HIGH 2
143
144 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
145 #pragma pack()
146 #endif /* _LONG_LONG_ALIGNMENT */
147
148 #endif /* SO_FLOW_SLA */
149 #endif /* __solaris__ */
150
151 JNIEXPORT jboolean JNICALL NET_IsFlowSupported();
152
153 #endif /* NET_UTILS_MD_H */