diff options
Diffstat (limited to 'nsprpub/pr/src/io/prmapopt.c')
| -rw-r--r-- | nsprpub/pr/src/io/prmapopt.c | 458 |
1 files changed, 458 insertions, 0 deletions
diff --git a/nsprpub/pr/src/io/prmapopt.c b/nsprpub/pr/src/io/prmapopt.c new file mode 100644 index 000000000..f92a76b2b --- /dev/null +++ b/nsprpub/pr/src/io/prmapopt.c @@ -0,0 +1,458 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This file defines _PR_MapOptionName(). The purpose of putting + * _PR_MapOptionName() in a separate file is to work around a Winsock + * header file problem on Windows NT. + * + * On Windows NT, if we define _WIN32_WINNT to be 0x0400 (in order + * to use Service Pack 3 extensions), windows.h includes winsock2.h + * (instead of winsock.h), which doesn't define many socket options + * defined in winsock.h. + * + * We need the socket options defined in winsock.h. So this file + * includes winsock.h, with _WIN32_WINNT undefined. + */ + +#if defined(WINNT) || defined(__MINGW32__) +#include <winsock.h> +#endif + +/* MinGW doesn't define these in its winsock.h. */ +#ifdef __MINGW32__ +#ifndef IP_TTL +#define IP_TTL 7 +#endif +#ifndef IP_TOS +#define IP_TOS 8 +#endif +#endif + +#include "primpl.h" + +#ifdef HAVE_NETINET_TCP_H +#include <netinet/tcp.h> /* TCP_NODELAY, TCP_MAXSEG */ +#endif + +#ifndef _PR_PTHREADS + +PRStatus PR_CALLBACK _PR_SocketGetSocketOption(PRFileDesc *fd, PRSocketOptionData *data) +{ + PRStatus rv; + PRInt32 length; + PRInt32 level, name; + + /* + * PR_SockOpt_Nonblocking is a special case that does not + * translate to a getsockopt() call + */ + if (PR_SockOpt_Nonblocking == data->option) + { + data->value.non_blocking = fd->secret->nonblocking; + return PR_SUCCESS; + } + + rv = _PR_MapOptionName(data->option, &level, &name); + if (PR_SUCCESS == rv) + { + switch (data->option) + { + case PR_SockOpt_Linger: + { +#if !defined(XP_BEOS) || defined(BONE_VERSION) + struct linger linger; + length = sizeof(linger); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char *) &linger, &length); + if (PR_SUCCESS == rv) + { + PR_ASSERT(sizeof(linger) == length); + data->value.linger.polarity = + (linger.l_onoff) ? PR_TRUE : PR_FALSE; + data->value.linger.linger = + PR_SecondsToInterval(linger.l_linger); + } + break; +#else + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + return PR_FAILURE; +#endif + } + case PR_SockOpt_Reuseaddr: + case PR_SockOpt_Keepalive: + case PR_SockOpt_NoDelay: + case PR_SockOpt_Broadcast: + case PR_SockOpt_Reuseport: + { +#ifdef WIN32 /* Winsock */ + BOOL value; +#else + PRIntn value; +#endif + length = sizeof(value); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&value, &length); + if (PR_SUCCESS == rv) + data->value.reuse_addr = (0 == value) ? PR_FALSE : PR_TRUE; + break; + } + case PR_SockOpt_McastLoopback: + { +#ifdef WIN32 /* Winsock */ + BOOL bool; +#else + PRUint8 bool; +#endif + length = sizeof(bool); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&bool, &length); + if (PR_SUCCESS == rv) + data->value.mcast_loopback = (0 == bool) ? PR_FALSE : PR_TRUE; + break; + } + case PR_SockOpt_RecvBufferSize: + case PR_SockOpt_SendBufferSize: + case PR_SockOpt_MaxSegment: + { + PRIntn value; + length = sizeof(value); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&value, &length); + if (PR_SUCCESS == rv) + data->value.recv_buffer_size = value; + break; + } + case PR_SockOpt_IpTimeToLive: + case PR_SockOpt_IpTypeOfService: + { + /* These options should really be an int (or PRIntn). */ + length = sizeof(PRUintn); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&data->value.ip_ttl, &length); + break; + } + case PR_SockOpt_McastTimeToLive: + { +#ifdef WIN32 /* Winsock */ + int ttl; +#else + PRUint8 ttl; +#endif + length = sizeof(ttl); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&ttl, &length); + if (PR_SUCCESS == rv) + data->value.mcast_ttl = ttl; + break; + } +#ifdef IP_ADD_MEMBERSHIP + case PR_SockOpt_AddMember: + case PR_SockOpt_DropMember: + { + struct ip_mreq mreq; + length = sizeof(mreq); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, (char*)&mreq, &length); + if (PR_SUCCESS == rv) + { + data->value.add_member.mcaddr.inet.ip = + mreq.imr_multiaddr.s_addr; + data->value.add_member.ifaddr.inet.ip = + mreq.imr_interface.s_addr; + } + break; + } +#endif /* IP_ADD_MEMBERSHIP */ + case PR_SockOpt_McastInterface: + { + /* This option is a struct in_addr. */ + length = sizeof(data->value.mcast_if.inet.ip); + rv = _PR_MD_GETSOCKOPT( + fd, level, name, + (char*)&data->value.mcast_if.inet.ip, &length); + break; + } + default: + PR_NOT_REACHED("Unknown socket option"); + break; + } + } + return rv; +} /* _PR_SocketGetSocketOption */ + +PRStatus PR_CALLBACK _PR_SocketSetSocketOption(PRFileDesc *fd, const PRSocketOptionData *data) +{ + PRStatus rv; + PRInt32 level, name; + + /* + * PR_SockOpt_Nonblocking is a special case that does not + * translate to a setsockopt call. + */ + if (PR_SockOpt_Nonblocking == data->option) + { +#ifdef WINNT + PR_ASSERT((fd->secret->md.io_model_committed == PR_FALSE) + || (fd->secret->nonblocking == data->value.non_blocking)); + if (fd->secret->md.io_model_committed + && (fd->secret->nonblocking != data->value.non_blocking)) + { + /* + * On NT, once we have associated a socket with the io + * completion port, we can't disassociate it. So we + * can't change the nonblocking option of the socket + * afterwards. + */ + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; + } +#endif + fd->secret->nonblocking = data->value.non_blocking; + return PR_SUCCESS; + } + + rv = _PR_MapOptionName(data->option, &level, &name); + if (PR_SUCCESS == rv) + { + switch (data->option) + { + case PR_SockOpt_Linger: + { +#if !defined(XP_BEOS) || defined(BONE_VERSION) + struct linger linger; + linger.l_onoff = data->value.linger.polarity; + linger.l_linger = PR_IntervalToSeconds(data->value.linger.linger); + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&linger, sizeof(linger)); + break; +#else + PR_SetError( PR_NOT_IMPLEMENTED_ERROR, 0 ); + return PR_FAILURE; +#endif + } + case PR_SockOpt_Reuseaddr: + case PR_SockOpt_Keepalive: + case PR_SockOpt_NoDelay: + case PR_SockOpt_Broadcast: + case PR_SockOpt_Reuseport: + { +#ifdef WIN32 /* Winsock */ + BOOL value; +#else + PRIntn value; +#endif + value = (data->value.reuse_addr) ? 1 : 0; + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&value, sizeof(value)); + break; + } + case PR_SockOpt_McastLoopback: + { +#ifdef WIN32 /* Winsock */ + BOOL bool; +#else + PRUint8 bool; +#endif + bool = data->value.mcast_loopback ? 1 : 0; + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&bool, sizeof(bool)); + break; + } + case PR_SockOpt_RecvBufferSize: + case PR_SockOpt_SendBufferSize: + case PR_SockOpt_MaxSegment: + { + PRIntn value = data->value.recv_buffer_size; + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&value, sizeof(value)); + break; + } + case PR_SockOpt_IpTimeToLive: + case PR_SockOpt_IpTypeOfService: + { + /* These options should really be an int (or PRIntn). */ + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&data->value.ip_ttl, sizeof(PRUintn)); + break; + } + case PR_SockOpt_McastTimeToLive: + { +#ifdef WIN32 /* Winsock */ + int ttl; +#else + PRUint8 ttl; +#endif + ttl = data->value.mcast_ttl; + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&ttl, sizeof(ttl)); + break; + } +#ifdef IP_ADD_MEMBERSHIP + case PR_SockOpt_AddMember: + case PR_SockOpt_DropMember: + { + struct ip_mreq mreq; + mreq.imr_multiaddr.s_addr = + data->value.add_member.mcaddr.inet.ip; + mreq.imr_interface.s_addr = + data->value.add_member.ifaddr.inet.ip; + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&mreq, sizeof(mreq)); + break; + } +#endif /* IP_ADD_MEMBERSHIP */ + case PR_SockOpt_McastInterface: + { + /* This option is a struct in_addr. */ + rv = _PR_MD_SETSOCKOPT( + fd, level, name, (char*)&data->value.mcast_if.inet.ip, + sizeof(data->value.mcast_if.inet.ip)); + break; + } + default: + PR_NOT_REACHED("Unknown socket option"); + break; + } + } + return rv; +} /* _PR_SocketSetSocketOption */ + +#endif /* ! _PR_PTHREADS */ + +/* + ********************************************************************* + ********************************************************************* + ** + ** Make sure that the following is at the end of this file, + ** because we will be playing with macro redefines. + ** + ********************************************************************* + ********************************************************************* + */ + +/* + * Not every platform has all the socket options we want to + * support. Some older operating systems such as SunOS 4.1.3 + * don't have the IP multicast socket options. Win32 doesn't + * have TCP_MAXSEG. + * + * To deal with this problem, we define the missing socket + * options as _PR_NO_SUCH_SOCKOPT. _PR_MapOptionName() fails with + * PR_OPERATION_NOT_SUPPORTED_ERROR if a socket option not + * available on the platform is requested. + */ + +/* + * Sanity check. SO_LINGER and TCP_NODELAY should be available + * on all platforms. Just to make sure we have included the + * appropriate header files. Then any undefined socket options + * are really missing. + */ + +#if !defined(SO_LINGER) +#error "SO_LINGER is not defined" +#endif + +#if !defined(TCP_NODELAY) +#error "TCP_NODELAY is not defined" +#endif + +/* + * Make sure the value of _PR_NO_SUCH_SOCKOPT is not + * a valid socket option. + */ +#define _PR_NO_SUCH_SOCKOPT -1 + +#ifndef SO_KEEPALIVE +#define SO_KEEPALIVE _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef SO_SNDBUF +#define SO_SNDBUF _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef SO_RCVBUF +#define SO_RCVBUF _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_MULTICAST_IF /* set/get IP multicast interface */ +#define IP_MULTICAST_IF _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_MULTICAST_TTL /* set/get IP multicast timetolive */ +#define IP_MULTICAST_TTL _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_MULTICAST_LOOP /* set/get IP multicast loopback */ +#define IP_MULTICAST_LOOP _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_ADD_MEMBERSHIP /* add an IP group membership */ +#define IP_ADD_MEMBERSHIP _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_DROP_MEMBERSHIP /* drop an IP group membership */ +#define IP_DROP_MEMBERSHIP _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_TTL /* set/get IP Time To Live */ +#define IP_TTL _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef IP_TOS /* set/get IP Type Of Service */ +#define IP_TOS _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef TCP_NODELAY /* don't delay to coalesce data */ +#define TCP_NODELAY _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef TCP_MAXSEG /* maxumum segment size for tcp */ +#define TCP_MAXSEG _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef SO_BROADCAST /* enable broadcast on UDP sockets */ +#define SO_BROADCAST _PR_NO_SUCH_SOCKOPT +#endif + +#ifndef SO_REUSEPORT /* allow local address & port reuse */ +#define SO_REUSEPORT _PR_NO_SUCH_SOCKOPT +#endif + +PRStatus _PR_MapOptionName( + PRSockOption optname, PRInt32 *level, PRInt32 *name) +{ + static PRInt32 socketOptions[PR_SockOpt_Last] = + { + 0, SO_LINGER, SO_REUSEADDR, SO_KEEPALIVE, SO_RCVBUF, SO_SNDBUF, + IP_TTL, IP_TOS, IP_ADD_MEMBERSHIP, IP_DROP_MEMBERSHIP, + IP_MULTICAST_IF, IP_MULTICAST_TTL, IP_MULTICAST_LOOP, + TCP_NODELAY, TCP_MAXSEG, SO_BROADCAST, SO_REUSEPORT + }; + static PRInt32 socketLevels[PR_SockOpt_Last] = + { + 0, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET, SOL_SOCKET, + IPPROTO_IP, IPPROTO_IP, IPPROTO_IP, IPPROTO_IP, + IPPROTO_IP, IPPROTO_IP, IPPROTO_IP, + IPPROTO_TCP, IPPROTO_TCP, SOL_SOCKET, SOL_SOCKET + }; + + if ((optname < PR_SockOpt_Linger) + || (optname >= PR_SockOpt_Last)) + { + PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0); + return PR_FAILURE; + } + + if (socketOptions[optname] == _PR_NO_SUCH_SOCKOPT) + { + PR_SetError(PR_OPERATION_NOT_SUPPORTED_ERROR, 0); + return PR_FAILURE; + } + *name = socketOptions[optname]; + *level = socketLevels[optname]; + return PR_SUCCESS; +} /* _PR_MapOptionName */ |