1 /* 2 * Copyright (c) 1997, 2010, 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 #ifndef USE_SELECT 36 #include <sys/poll.h> 37 #endif 38 39 40 #if defined(__linux__) || defined(MACOSX) 41 extern int NET_Timeout(int s, long timeout); 42 extern int NET_Read(int s, void* buf, size_t len); 43 extern int NET_RecvFrom(int s, void *buf, int len, unsigned int flags, 44 struct sockaddr *from, int *fromlen); 45 extern int NET_ReadV(int s, const struct iovec * vector, int count); 46 extern int NET_Send(int s, void *msg, int len, unsigned int flags); 47 extern int NET_SendTo(int s, const void *msg, int len, unsigned int 48 flags, const struct sockaddr *to, int tolen); 49 extern int NET_Writev(int s, const struct iovec * vector, int count); 50 extern int NET_Connect(int s, struct sockaddr *addr, int addrlen); 51 extern int NET_Accept(int s, struct sockaddr *addr, int *addrlen); 52 extern int NET_SocketClose(int s); 53 extern int NET_Dup2(int oldfd, int newfd); 54 55 #ifdef USE_SELECT 56 extern int NET_Select(int s, fd_set *readfds, fd_set *writefds, 57 fd_set *exceptfds, struct timeval *timeout); 58 #else 59 extern int NET_Poll(struct pollfd *ufds, unsigned int nfds, int timeout); 60 #endif 61 62 #else 63 64 #define NET_Timeout JVM_Timeout 65 #define NET_Read JVM_Read 66 #define NET_RecvFrom JVM_RecvFrom 67 #define NET_ReadV readv 68 #define NET_Send JVM_Send 69 #define NET_SendTo JVM_SendTo 70 #define NET_WriteV writev 71 #define NET_Connect JVM_Connect 72 #define NET_Accept JVM_Accept 73 #define NET_SocketClose JVM_SocketClose 74 #define NET_Dup2 dup2 75 #define NET_Select select 76 #define NET_Poll poll 77 78 #endif 79 80 #if defined(__linux__) && defined(AF_INET6) 81 int getDefaultIPv6Interface(struct in6_addr *target_addr); 82 #endif 83 84 #ifdef __solaris__ 85 extern int net_getParam(char *driver, char *param); 86 87 #ifndef SO_FLOW_SLA 88 #define SO_FLOW_SLA 0x1018 89 90 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 91 #pragma pack(4) 92 #endif 93 94 /* 95 * Used with the setsockopt(SO_FLOW_SLA, ...) call to set 96 * per socket service level properties. 97 * When the application uses per-socket API, we will enforce the properties 98 * on both outbound and inbound packets. 99 * 100 * For now, only priority and maxbw are supported in SOCK_FLOW_PROP_VERSION1. 101 */ 102 typedef struct sock_flow_props_s { 103 int sfp_version; 104 uint32_t sfp_mask; 105 int sfp_priority; /* flow priority */ 106 uint64_t sfp_maxbw; /* bandwidth limit in bps */ 107 int sfp_status; /* flow create status for getsockopt */ 108 } sock_flow_props_t; 109 110 #define SOCK_FLOW_PROP_VERSION1 1 111 112 /* bit mask values for sfp_mask */ 113 #define SFP_MAXBW 0x00000001 /* Flow Bandwidth Limit */ 114 #define SFP_PRIORITY 0x00000008 /* Flow priority */ 115 116 /* possible values for sfp_priority */ 117 #define SFP_PRIO_NORMAL 1 118 #define SFP_PRIO_HIGH 2 119 120 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4 121 #pragma pack() 122 #endif /* _LONG_LONG_ALIGNMENT */ 123 124 #endif /* SO_FLOW_SLA */ 125 #endif /* __solaris__ */ 126 127 /* needed from libsocket on Solaris 8 */ 128 129 typedef int (*getaddrinfo_f)(const char *nodename, const char *servname, 130 const struct addrinfo *hints, struct addrinfo **res); 131 132 typedef void (*freeaddrinfo_f)(struct addrinfo *); 133 134 typedef const char * (*gai_strerror_f)(int ecode); 135 136 typedef int (*getnameinfo_f)(const struct sockaddr *, size_t, 137 char *, size_t, char *, size_t, int); 138 139 extern getaddrinfo_f getaddrinfo_ptr; 140 extern freeaddrinfo_f freeaddrinfo_ptr; 141 extern getnameinfo_f getnameinfo_ptr; 142 143 void ThrowUnknownHostExceptionWithGaiError(JNIEnv *env, 144 const char* hostname, 145 int gai_error); 146 147 /* do we have address translation support */ 148 149 extern jboolean NET_addrtransAvailable(); 150 151 #define NET_WAIT_READ 0x01 152 #define NET_WAIT_WRITE 0x02 153 #define NET_WAIT_CONNECT 0x04 154 155 extern jint NET_Wait(JNIEnv *env, jint fd, jint flags, jint timeout); 156 157 /************************************************************************ 158 * Macros and constants 159 */ 160 161 /* 162 * On 64-bit JDKs we use a much larger stack and heap buffer. 163 */ 164 #ifdef _LP64 165 #define MAX_BUFFER_LEN 65536 166 #define MAX_HEAP_BUFFER_LEN 131072 167 #else 168 #define MAX_BUFFER_LEN 8192 169 #define MAX_HEAP_BUFFER_LEN 65536 170 #endif 171 172 #ifdef AF_INET6 173 174 #define SOCKADDR union { \ 175 struct sockaddr_in him4; \ 176 struct sockaddr_in6 him6; \ 177 } 178 179 #define SOCKADDR_LEN (ipv6_available() ? sizeof(SOCKADDR) : \ 180 sizeof(struct sockaddr_in)) 181 182 #else 183 184 #define SOCKADDR union { struct sockaddr_in him4; } 185 #define SOCKADDR_LEN sizeof(SOCKADDR) 186 187 #endif 188 189 /************************************************************************ 190 * Utilities 191 */ 192 #ifdef __linux__ 193 extern int kernelIsV22(); 194 extern int kernelIsV24(); 195 #endif 196 197 void NET_ThrowByNameWithLastError(JNIEnv *env, const char *name, 198 const char *defaultDetail); 199 200 201 #endif /* NET_UTILS_MD_H */