mirror of
https://github.com/reactos/reactos.git
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1130 lines
34 KiB
C
1130 lines
34 KiB
C
/*
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* ICMP
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*
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* Francois Gouget, 1999, based on the work of
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* RW Hall, 1999, based on public domain code PING.C by Mike Muus (1983)
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* and later works (c) 1989 Regents of Univ. of California - see copyright
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* notice at end of source-code.
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* Copyright 2015 Sebastian Lackner
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/* Future work:
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* - Systems like FreeBSD don't seem to support the IP_TTL option and maybe others.
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* But using IP_HDRINCL and building the IP header by hand might work.
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* - Not all IP options are supported.
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* - Are ICMP handles real handles, i.e. inheritable and all? There might be some
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* more work to do here, including server side stuff with synchronization.
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* - This API should probably be thread safe. Is it really?
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* - Using the winsock functions has not been tested.
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*/
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#ifdef __REACTOS__
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#include "iphlpapi_private.h"
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#else // ! __REACTOS__
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#include "config.h"
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#include "wine/port.h"
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#ifdef HAVE_NETDB_H
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# include <netdb.h>
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#endif
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#ifdef HAVE_NETINET_IN_SYSTM_H
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# include <netinet/in_systm.h>
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#endif
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#ifdef HAVE_NETINET_IN_H
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# include <netinet/in.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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# include <sys/time.h>
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#endif
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#include <stdarg.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifdef HAVE_ARPA_INET_H
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# include <arpa/inet.h>
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#endif
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#ifdef HAVE_SYS_POLL_H
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# include <sys/poll.h>
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#endif
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#ifdef HAVE_SYS_WAIT_H
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# include <sys/wait.h>
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#endif
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#define USE_WS_PREFIX
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "winternl.h"
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#include "ipexport.h"
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#include "icmpapi.h"
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#include "wine/debug.h"
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#endif // ! __REACTOS__
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/* Set up endianness macros for the ip and ip_icmp BSD headers */
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#ifndef BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#endif
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#ifndef LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234
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#endif
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#ifndef BYTE_ORDER
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#ifdef WORDS_BIGENDIAN
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif /* BYTE_ORDER */
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#define u_int16_t WORD
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#define u_int32_t DWORD
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/* These are BSD headers. We use these here because they are needed on
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* libc5 Linux systems. On other platforms they are usually simply more
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* complete than the native stuff, and cause less portability problems
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* so we use them anyway.
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*/
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#include "ip.h"
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#include "ip_icmp.h"
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WINE_DEFAULT_DEBUG_CHANNEL(icmp);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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typedef struct {
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int sid;
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IP_OPTION_INFORMATION default_opts;
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} icmp_t;
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#define IP_OPTS_UNKNOWN 0
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#define IP_OPTS_DEFAULT 1
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#define IP_OPTS_CUSTOM 2
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/* The sequence number is unique process wide, so that all threads
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* have a distinct sequence number.
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*/
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static LONG icmp_sequence=0;
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static int in_cksum(u_short *addr, int len)
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{
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int nleft=len;
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u_short *w = addr;
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int sum = 0;
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u_short answer = 0;
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while (nleft > 1) {
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sum += *w++;
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nleft -= 2;
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}
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if (nleft == 1) {
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*(u_char *)(&answer) = *(u_char *)w;
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sum += answer;
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}
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sum = (sum >> 16) + (sum & 0xffff);
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sum += (sum >> 16);
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answer = ~sum;
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return(answer);
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}
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/*
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* Exported Routines.
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*/
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/***********************************************************************
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* Icmp6CreateFile (IPHLPAPI.@)
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*/
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HANDLE WINAPI Icmp6CreateFile(VOID)
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{
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icmp_t* icp;
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#ifdef __REACTOS__
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int sid;
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(2, 2), &wsaData) != ERROR_SUCCESS)
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{
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ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
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return INVALID_HANDLE_VALUE;
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}
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sid=socket(AF_INET6,SOCK_RAW,IPPROTO_ICMPV6);
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#else
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int sid=socket(AF_INET6,SOCK_RAW,IPPROTO_ICMPV6);
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if (sid < 0)
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{
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/* Mac OS X supports non-privileged ICMP via SOCK_DGRAM type. */
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sid=socket(AF_INET6,SOCK_DGRAM,IPPROTO_ICMPV6);
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}
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#endif
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if (sid < 0) {
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ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
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SetLastError(ERROR_ACCESS_DENIED);
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return INVALID_HANDLE_VALUE;
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}
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icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
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if (icp==NULL) {
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#ifdef __REACTOS__
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closesocket(sid);
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WSACleanup();
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#else
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close(sid);
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#endif
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SetLastError(IP_NO_RESOURCES);
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return INVALID_HANDLE_VALUE;
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}
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icp->sid=sid;
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icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
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return (HANDLE)icp;
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}
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/***********************************************************************
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* Icmp6SendEcho2 (IPHLPAPI.@)
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*/
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DWORD WINAPI Icmp6SendEcho2(
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HANDLE IcmpHandle,
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HANDLE Event,
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PIO_APC_ROUTINE ApcRoutine,
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PVOID ApcContext,
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struct sockaddr_in6* SourceAddress,
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struct sockaddr_in6* DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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)
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{
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FIXME("(%p, %p, %p, %p, %p, %p, %p, %d, %p, %p, %d, %d): stub\n", IcmpHandle, Event,
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ApcRoutine, ApcContext, SourceAddress, DestinationAddress, RequestData,
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RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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return 0;
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}
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/***********************************************************************
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* IcmpCreateFile (IPHLPAPI.@)
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*/
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HANDLE WINAPI IcmpCreateFile(VOID)
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{
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#ifndef __REACTOS__
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static int once;
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#endif
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icmp_t* icp;
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#ifdef __REACTOS__
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int sid;
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WSADATA wsaData;
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if (WSAStartup(MAKEWORD(2, 2), &wsaData) != ERROR_SUCCESS)
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{
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ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
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return INVALID_HANDLE_VALUE;
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}
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sid=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
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if (sid < 0) {
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ERR_(winediag)("Failed to use ICMP (network ping), this requires special permissions.\n");
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SetLastError(ERROR_ACCESS_DENIED);
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return INVALID_HANDLE_VALUE;
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}
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#else
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int sid=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
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if (sid < 0)
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{
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/* Mac OS X supports non-privileged ICMP via SOCK_DGRAM type. */
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sid=socket(AF_INET,SOCK_DGRAM,IPPROTO_ICMP);
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}
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if (sid < 0 && !once++) {
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FIXME_(winediag)("Failed to use ICMP (network ping), this requires special permissions.\n");
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FIXME_(winediag)("Falling back to system 'ping' command as a workaround.\n");
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}
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#endif
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icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
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if (icp==NULL) {
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#ifdef __REACTOS__
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closesocket(sid);
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WSACleanup();
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#else
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if (sid >= 0) close(sid);
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#endif
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SetLastError(IP_NO_RESOURCES);
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return INVALID_HANDLE_VALUE;
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}
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icp->sid=sid;
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icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
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return (HANDLE)icp;
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}
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/***********************************************************************
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* IcmpCloseHandle (IPHLPAPI.@)
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*/
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BOOL WINAPI IcmpCloseHandle(HANDLE IcmpHandle)
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{
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icmp_t* icp=(icmp_t*)IcmpHandle;
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#ifdef __REACTOS__
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// REACTOS: Added a check for NULL handle, CORE-10707
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if (IcmpHandle==INVALID_HANDLE_VALUE || IcmpHandle==NULL) {
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#else
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if (IcmpHandle==INVALID_HANDLE_VALUE) {
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#endif
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/* FIXME: in fact win98 seems to ignore the handle value !!! */
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SetLastError(ERROR_INVALID_HANDLE);
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return FALSE;
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}
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#ifdef __REACTOS__
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shutdown(icp->sid,2);
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#else
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if (icp->sid >= 0) close(icp->sid);
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#endif
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HeapFree(GetProcessHeap (), 0, icp);
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#ifdef __REACTOS__
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WSACleanup();
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#endif
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return TRUE;
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}
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#ifndef __REACTOS__
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static DWORD system_icmp(
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IPAddr DestinationAddress,
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LPVOID RequestData,
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WORD RequestSize,
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PIP_OPTION_INFORMATION RequestOptions,
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LPVOID ReplyBuffer,
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DWORD ReplySize,
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DWORD Timeout
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)
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{
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#ifdef HAVE_FORK
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ICMP_ECHO_REPLY *reply = ReplyBuffer;
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char ntoa_buffer[16]; /* 4*3 digits + 3 '.' + 1 '\0' */
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char size_buffer[6]; /* 5 digits + '\0' */
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char tos_buffer[4]; /* 3 digits + '\0' */
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char ttl_buffer[4]; /* 3 digits + '\0' */
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char time_buffer[11]; /* 10 digits + '\0' */
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int i, pos, res, status, argc;
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const char *argv[20];
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struct in_addr addr;
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int pipe_out[2];
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pid_t pid, wpid;
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char *ptr, *eol;
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char buf[127];
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/* Assemble the ping commandline */
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argc = 0;
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argv[argc++] = "ping";
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argv[argc++] = "-c"; /* only send a single ping */
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argv[argc++] = "1";
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argv[argc++] = "-n"; /* numeric output only */
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argv[argc++] = "-s"; /* request size */
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sprintf(size_buffer, "%u", (RequestSize >= 16) ? RequestSize : 16);
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argv[argc++] = size_buffer;
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argv[argc++] = "-W"; /* timeout */
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#ifdef __linux__
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/* The linux 'ping' utlity expects a time in seconds */
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Timeout = (Timeout + 999) / 1000;
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#endif
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sprintf(time_buffer, "%u", Timeout);
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argv[argc++] = time_buffer;
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if (RequestOptions)
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{
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#ifdef __linux__
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argv[argc++] = "-Q"; /* tos option */
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#else
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argv[argc++] = "-z"; /* tos option */
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#endif
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sprintf(tos_buffer, "%u", RequestOptions->Tos);
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argv[argc++] = tos_buffer;
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#ifdef __linux__
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/* TTL can only be specified for multicast addresses on FreeBSD/MacOS */
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argv[argc++] = "-t"; /* ttl option */
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sprintf(ttl_buffer, "%u", RequestOptions->Ttl);
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argv[argc++] = ttl_buffer;
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#endif
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}
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addr.s_addr = DestinationAddress;
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if (!(ptr = inet_ntoa(addr)))
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{
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SetLastError(ERROR_INVALID_PARAMETER);
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return 0;
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}
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strcpy(ntoa_buffer, ptr);
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argv[argc++] = ntoa_buffer;
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argv[argc] = NULL;
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/* Dump commandline for debugging purposes */
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TRACE("Ping commandline: ");
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for (i = 0; i < argc; i++)
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{
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TRACE("%s ", debugstr_a(argv[i]));
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}
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TRACE("\n");
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/* Prefill the reply struct with fallback values */
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memset(reply, 0, sizeof(*reply));
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reply->Address = DestinationAddress;
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reply->RoundTripTime = 40;
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reply->Options.Ttl = 120;
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/* Create communication pipes */
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#ifdef HAVE_PIPE2
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if (pipe2(pipe_out, O_CLOEXEC) < 0)
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#endif
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{
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if (pipe(pipe_out) < 0)
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{
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SetLastError(ERROR_OUTOFMEMORY);
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return 0;
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}
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fcntl(pipe_out[0], F_SETFD, FD_CLOEXEC);
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fcntl(pipe_out[1], F_SETFD, FD_CLOEXEC);
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}
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/* Fork child process */
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pid = fork();
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if (pid == -1)
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{
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close(pipe_out[0]);
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close(pipe_out[1]);
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SetLastError(ERROR_OUTOFMEMORY);
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return 0;
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}
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/* Child process */
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if (pid == 0)
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{
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static char lang_env[] = "LANG=C";
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dup2(pipe_out[1], 1);
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close(pipe_out[0]);
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close(pipe_out[1]);
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close(0);
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close(2);
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putenv(lang_env);
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execvp(argv[0], (char **)argv);
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_exit(1);
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}
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close(pipe_out[1]);
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|
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/* Wait for child and read output */
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pos = 0;
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do
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{
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if (pos >= sizeof(buf) - 1)
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{
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ERR("line too long, dropping buffer\n");
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pos = 0;
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}
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/* read next block */
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do
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{
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res = read(pipe_out[0], &buf[pos], (sizeof(buf) - 1) - pos);
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}
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while (res < 0 && errno == EINTR);
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if (res < 0)
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{
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ERR("read failed: %s\n", strerror(errno));
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break;
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}
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pos += res;
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while (pos)
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{
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eol = memchr(buf, '\n', pos);
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if (!eol) break;
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*eol = 0;
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TRACE("Received line: %s\n", debugstr_a(buf));
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|
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/* Interpret address */
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if ((ptr = strstr(buf, "from ")))
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{
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int a, b, c, d;
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if (sscanf(ptr + 5, "%u.%u.%u.%u", &a, &b, &c, &d) >= 4)
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{
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reply->Address = a | (b << 8) | (c << 16) | (d << 24);
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addr.s_addr = reply->Address;
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TRACE("Got address %s\n", inet_ntoa(addr));
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}
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}
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|
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/* Interpret ttl */
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if ((ptr = strstr(buf, "ttl=")))
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{
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int val;
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if (sscanf(ptr + 4, "%u", &val) >= 1)
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{
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reply->Options.Ttl = val;
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TRACE("Got ttl %u\n", val);
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}
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}
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|
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/* Interpret time */
|
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if ((ptr = strstr(buf, "time=")))
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{
|
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float val;
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if (sscanf(ptr + 5, "%f", &val) >= 1)
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{
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reply->RoundTripTime = (unsigned int)(val + 0.5);
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TRACE("Got rtt = %u\n", reply->RoundTripTime);
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}
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}
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memmove(buf, eol + 1, pos - (eol + 1 - buf));
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pos -= (eol + 1 - buf);
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}
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}
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while (res > 0);
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close(pipe_out[0]);
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|
|
|
/* reap the child process */
|
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do
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{
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wpid = waitpid(pid, &status, 0);
|
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}
|
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while (wpid < 0 && errno == EINTR);
|
|
|
|
/* fill out remaining struct fields */
|
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if (wpid >= 0 && WIFEXITED(status) && WEXITSTATUS(status) == 0)
|
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{
|
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if (ReplySize < RequestSize + sizeof(*reply))
|
|
{
|
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reply->Status = IP_BUF_TOO_SMALL;
|
|
reply->DataSize = 0;
|
|
reply->Data = NULL;
|
|
}
|
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else
|
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{
|
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reply->Status = 0;
|
|
reply->DataSize = RequestSize;
|
|
reply->Data = (char *)reply + sizeof(*reply);
|
|
memcpy(reply->Data, RequestData, RequestSize);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
SetLastError(IP_REQ_TIMED_OUT);
|
|
return 0;
|
|
#else
|
|
ERR("no fork support on this platform\n");
|
|
SetLastError(ERROR_NOT_SUPPORTED);
|
|
return 0;
|
|
#endif
|
|
}
|
|
#else // __REACTOS__
|
|
BOOL
|
|
GetIPv4ByIndex(
|
|
_In_ DWORD Index,
|
|
_Out_ IPAddr * Address
|
|
)
|
|
{
|
|
PMIB_IPADDRTABLE pIpAddrTable;
|
|
ULONG dwSize = 0;
|
|
BOOL result = FALSE;
|
|
|
|
if (GetIpAddrTable(NULL, &dwSize, FALSE) != ERROR_INSUFFICIENT_BUFFER)
|
|
{
|
|
return result;
|
|
}
|
|
pIpAddrTable = HeapAlloc(GetProcessHeap(), 0, dwSize);
|
|
|
|
if (GetIpAddrTable(pIpAddrTable, &dwSize, FALSE) == NO_ERROR)
|
|
{
|
|
INT i;
|
|
|
|
for (i = 0; i < (*pIpAddrTable).dwNumEntries; i++)
|
|
{
|
|
if ((*pIpAddrTable).table[i].dwIndex == Index)
|
|
{
|
|
*Address = (IPAddr)(*pIpAddrTable).table[i].dwAddr;
|
|
result = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
HeapFree(GetProcessHeap(), 0, pIpAddrTable);
|
|
return result;
|
|
}
|
|
#endif // __REACTOS__
|
|
|
|
/***********************************************************************
|
|
* IcmpSendEcho (IPHLPAPI.@)
|
|
*/
|
|
DWORD WINAPI IcmpSendEcho(
|
|
HANDLE IcmpHandle,
|
|
IPAddr DestinationAddress,
|
|
LPVOID RequestData,
|
|
WORD RequestSize,
|
|
PIP_OPTION_INFORMATION RequestOptions,
|
|
LPVOID ReplyBuffer,
|
|
DWORD ReplySize,
|
|
DWORD Timeout
|
|
)
|
|
{
|
|
icmp_t* icp=(icmp_t*)IcmpHandle;
|
|
unsigned char* reqbuf;
|
|
int reqsize;
|
|
|
|
struct icmp_echo_reply* ier;
|
|
struct ip* ip_header;
|
|
struct icmp* icmp_header;
|
|
char* endbuf;
|
|
int ip_header_len;
|
|
int maxlen;
|
|
#ifdef __REACTOS__
|
|
fd_set fdr;
|
|
struct timeval timeout;
|
|
#else
|
|
struct pollfd fdr;
|
|
#endif
|
|
DWORD send_time,recv_time;
|
|
struct sockaddr_in addr;
|
|
socklen_t addrlen;
|
|
unsigned short id,seq,cksum;
|
|
int res;
|
|
|
|
if (IcmpHandle==INVALID_HANDLE_VALUE) {
|
|
/* FIXME: in fact win98 seems to ignore the handle value !!! */
|
|
SetLastError(ERROR_INVALID_HANDLE);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef __REACTOS__
|
|
if (ReplySize<sizeof(ICMP_ECHO_REPLY)) {
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
if (ReplySize-RequestSize<sizeof(ICMP_ECHO_REPLY)) {
|
|
SetLastError(IP_GENERAL_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
if (!ReplyBuffer) {
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
return 0;
|
|
}
|
|
|
|
if (Timeout == 0 || Timeout == -1) {
|
|
SetLastError(ERROR_INVALID_PARAMETER);
|
|
#else
|
|
if (ReplySize<sizeof(ICMP_ECHO_REPLY)+ICMP_MINLEN) {
|
|
SetLastError(IP_BUF_TOO_SMALL);
|
|
#endif
|
|
return 0;
|
|
}
|
|
/* check the request size against SO_MAX_MSG_SIZE using getsockopt */
|
|
|
|
if (!DestinationAddress) {
|
|
SetLastError(ERROR_INVALID_NETNAME);
|
|
return 0;
|
|
}
|
|
|
|
#ifndef __REACTOS__
|
|
if (icp->sid < 0) {
|
|
WARN("using system ping command since SOCK_RAW was not supported.\n");
|
|
return system_icmp(DestinationAddress, RequestData, RequestSize,
|
|
RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
}
|
|
#endif
|
|
|
|
/* Prepare the request */
|
|
#ifdef __REACTOS__
|
|
id = GetCurrentProcessId() & 0xFFFF;
|
|
#else
|
|
id=getpid() & 0xFFFF;
|
|
#endif
|
|
seq=InterlockedIncrement(&icmp_sequence) & 0xFFFF;
|
|
|
|
#ifdef __REACTOS__
|
|
reqsize=ICMP_MINLEN;
|
|
if (RequestData && RequestSize > 0)
|
|
reqsize += RequestSize;
|
|
#else
|
|
reqsize=ICMP_MINLEN+RequestSize;
|
|
#endif
|
|
reqbuf=HeapAlloc(GetProcessHeap(), 0, reqsize);
|
|
if (reqbuf==NULL) {
|
|
SetLastError(ERROR_OUTOFMEMORY);
|
|
return 0;
|
|
}
|
|
|
|
icmp_header=(struct icmp*)reqbuf;
|
|
icmp_header->icmp_type=ICMP_ECHO;
|
|
icmp_header->icmp_code=0;
|
|
icmp_header->icmp_cksum=0;
|
|
icmp_header->icmp_id=id;
|
|
icmp_header->icmp_seq=seq;
|
|
#ifdef __REACTOS__
|
|
if (RequestData && RequestSize > 0)
|
|
memcpy(reqbuf+ICMP_MINLEN, RequestData, RequestSize);
|
|
#else
|
|
memcpy(reqbuf+ICMP_MINLEN, RequestData, RequestSize);
|
|
#endif
|
|
icmp_header->icmp_cksum=cksum=in_cksum((u_short*)reqbuf,reqsize);
|
|
|
|
addr.sin_family=AF_INET;
|
|
addr.sin_addr.s_addr=DestinationAddress;
|
|
addr.sin_port=0;
|
|
|
|
if (RequestOptions!=NULL) {
|
|
int val;
|
|
if (icp->default_opts.OptionsSize==IP_OPTS_UNKNOWN) {
|
|
socklen_t len;
|
|
/* Before we mess with the options, get the default values */
|
|
len=sizeof(val);
|
|
getsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,&len);
|
|
icp->default_opts.Ttl=val;
|
|
|
|
len=sizeof(val);
|
|
getsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,&len);
|
|
icp->default_opts.Tos=val;
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
}
|
|
|
|
val=RequestOptions->Ttl;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,sizeof(val));
|
|
val=RequestOptions->Tos;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,sizeof(val));
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
|
|
icp->default_opts.OptionsSize=IP_OPTS_CUSTOM;
|
|
} else if (icp->default_opts.OptionsSize==IP_OPTS_CUSTOM) {
|
|
int val;
|
|
|
|
/* Restore the default options */
|
|
val=icp->default_opts.Ttl;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TTL,(char *)&val,sizeof(val));
|
|
val=icp->default_opts.Tos;
|
|
setsockopt(icp->sid,IPPROTO_IP,IP_TOS,(char *)&val,sizeof(val));
|
|
/* FIXME: missing: handling of IP 'flags', and all the other options */
|
|
|
|
icp->default_opts.OptionsSize=IP_OPTS_DEFAULT;
|
|
}
|
|
|
|
/* Get ready for receiving the reply
|
|
* Do it before we send the request to minimize the risk of introducing delays
|
|
*/
|
|
#ifdef __REACTOS__
|
|
FD_ZERO(&fdr);
|
|
FD_SET(icp->sid,&fdr);
|
|
timeout.tv_sec=Timeout/1000;
|
|
timeout.tv_usec=(Timeout % 1000)*1000;
|
|
#else
|
|
fdr.fd = icp->sid;
|
|
fdr.events = POLLIN;
|
|
#endif
|
|
addrlen=sizeof(addr);
|
|
ier=ReplyBuffer;
|
|
#ifdef __REACTOS__
|
|
endbuf=((char *) ReplyBuffer)+ReplySize;
|
|
maxlen=sizeof(struct ip)+ICMP_MINLEN+RequestSize;
|
|
#else
|
|
ip_header=(struct ip *) ((char *) ReplyBuffer+sizeof(ICMP_ECHO_REPLY));
|
|
endbuf=(char *) ReplyBuffer+ReplySize;
|
|
maxlen=ReplySize-sizeof(ICMP_ECHO_REPLY);
|
|
#endif
|
|
|
|
/* Send the packet */
|
|
TRACE("Sending %d bytes (RequestSize=%d) to %s\n", reqsize, RequestSize, inet_ntoa(addr.sin_addr));
|
|
#if 0
|
|
if (TRACE_ON(icmp)){
|
|
unsigned char* buf=(unsigned char*)reqbuf;
|
|
int i;
|
|
printf("Output buffer:\n");
|
|
for (i=0;i<reqsize;i++)
|
|
printf("%2x,", buf[i]);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
|
|
send_time = GetTickCount();
|
|
#ifdef __REACTOS__
|
|
res=sendto(icp->sid, (const char*)reqbuf, reqsize, 0, (struct sockaddr*)&addr, sizeof(addr));
|
|
#else
|
|
res=sendto(icp->sid, reqbuf, reqsize, 0, (struct sockaddr*)&addr, sizeof(addr));
|
|
#endif
|
|
HeapFree(GetProcessHeap (), 0, reqbuf);
|
|
if (res<0) {
|
|
#ifdef __REACTOS__
|
|
DWORD dwBestIfIndex;
|
|
IPAddr IP4Addr;
|
|
|
|
ZeroMemory(&ier->Address, sizeof(ier->Address));
|
|
|
|
if (GetBestInterface(addr.sin_addr.s_addr, &dwBestIfIndex) == NO_ERROR &&
|
|
GetIPv4ByIndex(dwBestIfIndex, &IP4Addr))
|
|
{
|
|
memcpy(&ier->Address, &IP4Addr, sizeof(IP4Addr));
|
|
}
|
|
|
|
if (WSAGetLastError()==WSAEMSGSIZE)
|
|
ier->Status = IP_PACKET_TOO_BIG;
|
|
else {
|
|
switch (WSAGetLastError()) {
|
|
case WSAENETUNREACH:
|
|
ier->Status = IP_DEST_NET_UNREACHABLE;
|
|
break;
|
|
case WSAEHOSTUNREACH:
|
|
ier->Status = IP_DEST_HOST_UNREACHABLE;
|
|
break;
|
|
default:
|
|
TRACE("unknown error: errno=%d\n",WSAGetLastError());
|
|
ier->Status = IP_GENERAL_FAILURE;
|
|
ZeroMemory(&ier->Address, sizeof(ier->Address));
|
|
}
|
|
}
|
|
return 1;
|
|
#else
|
|
if (errno==EMSGSIZE)
|
|
SetLastError(IP_PACKET_TOO_BIG);
|
|
else {
|
|
switch (errno) {
|
|
case ENETUNREACH:
|
|
SetLastError(IP_DEST_NET_UNREACHABLE);
|
|
break;
|
|
case EHOSTUNREACH:
|
|
SetLastError(IP_DEST_HOST_UNREACHABLE);
|
|
break;
|
|
default:
|
|
TRACE("unknown error: errno=%d\n",errno);
|
|
SetLastError(IP_GENERAL_FAILURE);
|
|
}
|
|
}
|
|
return 0;
|
|
#endif
|
|
}
|
|
|
|
/* Get the reply */
|
|
#ifdef __REACTOS__
|
|
ip_header=HeapAlloc(GetProcessHeap(), 0, maxlen);
|
|
#endif
|
|
ip_header_len=0; /* because gcc was complaining */
|
|
#ifdef __REACTOS__
|
|
while ((res=select(icp->sid+1,&fdr,NULL,NULL,&timeout))>0) {
|
|
#else
|
|
while (poll(&fdr,1,Timeout)>0) {
|
|
#endif
|
|
recv_time = GetTickCount();
|
|
#ifdef __REACTOS__
|
|
res=recvfrom(icp->sid, (char*)ip_header, maxlen, 0, (struct sockaddr*)&addr,(int*)&addrlen);
|
|
#else
|
|
res=recvfrom(icp->sid, (char*)ip_header, maxlen, 0, (struct sockaddr*)&addr,&addrlen);
|
|
#endif
|
|
TRACE("received %d bytes from %s\n",res, inet_ntoa(addr.sin_addr));
|
|
ier->Status=IP_REQ_TIMED_OUT;
|
|
#ifdef __REACTOS__
|
|
if (res < 0)
|
|
break;
|
|
#endif
|
|
|
|
/* Check whether we should ignore this packet */
|
|
if ((ip_header->ip_p==IPPROTO_ICMP) && (res>=sizeof(struct ip)+ICMP_MINLEN)) {
|
|
ip_header_len=ip_header->ip_hl << 2;
|
|
icmp_header=(struct icmp*)(((char*)ip_header)+ip_header_len);
|
|
TRACE("received an ICMP packet of type,code=%d,%d\n",icmp_header->icmp_type,icmp_header->icmp_code);
|
|
if (icmp_header->icmp_type==ICMP_ECHOREPLY) {
|
|
if ((icmp_header->icmp_id==id) && (icmp_header->icmp_seq==seq))
|
|
ier->Status=IP_SUCCESS;
|
|
} else {
|
|
switch (icmp_header->icmp_type) {
|
|
case ICMP_UNREACH:
|
|
switch (icmp_header->icmp_code) {
|
|
case ICMP_UNREACH_HOST:
|
|
#ifdef ICMP_UNREACH_HOST_UNKNOWN
|
|
case ICMP_UNREACH_HOST_UNKNOWN:
|
|
#endif
|
|
#ifdef ICMP_UNREACH_ISOLATED
|
|
case ICMP_UNREACH_ISOLATED:
|
|
#endif
|
|
#ifdef ICMP_UNREACH_HOST_PROHIB
|
|
case ICMP_UNREACH_HOST_PROHIB:
|
|
#endif
|
|
#ifdef ICMP_UNREACH_TOSHOST
|
|
case ICMP_UNREACH_TOSHOST:
|
|
#endif
|
|
ier->Status=IP_DEST_HOST_UNREACHABLE;
|
|
break;
|
|
case ICMP_UNREACH_PORT:
|
|
ier->Status=IP_DEST_PORT_UNREACHABLE;
|
|
break;
|
|
case ICMP_UNREACH_PROTOCOL:
|
|
ier->Status=IP_DEST_PROT_UNREACHABLE;
|
|
break;
|
|
case ICMP_UNREACH_SRCFAIL:
|
|
ier->Status=IP_BAD_ROUTE;
|
|
break;
|
|
default:
|
|
ier->Status=IP_DEST_NET_UNREACHABLE;
|
|
}
|
|
break;
|
|
case ICMP_TIMXCEED:
|
|
if (icmp_header->icmp_code==ICMP_TIMXCEED_REASS)
|
|
ier->Status=IP_TTL_EXPIRED_REASSEM;
|
|
else
|
|
ier->Status=IP_TTL_EXPIRED_TRANSIT;
|
|
break;
|
|
case ICMP_PARAMPROB:
|
|
ier->Status=IP_PARAM_PROBLEM;
|
|
break;
|
|
case ICMP_SOURCEQUENCH:
|
|
ier->Status=IP_SOURCE_QUENCH;
|
|
break;
|
|
}
|
|
if (ier->Status!=IP_REQ_TIMED_OUT) {
|
|
struct ip* rep_ip_header;
|
|
struct icmp* rep_icmp_header;
|
|
/* The ICMP header size of all the packets we accept is the same */
|
|
rep_ip_header=(struct ip*)(((char*)icmp_header)+ICMP_MINLEN);
|
|
rep_icmp_header=(struct icmp*)(((char*)rep_ip_header)+(rep_ip_header->ip_hl << 2));
|
|
|
|
/* Make sure that this is really a reply to our packet */
|
|
if (ip_header_len+ICMP_MINLEN+(rep_ip_header->ip_hl << 2)+ICMP_MINLEN>ip_header->ip_len) {
|
|
ier->Status=IP_REQ_TIMED_OUT;
|
|
} else if ((rep_icmp_header->icmp_type!=ICMP_ECHO) ||
|
|
(rep_icmp_header->icmp_code!=0) ||
|
|
(rep_icmp_header->icmp_id!=id) ||
|
|
/* windows doesn't check this checksum, else tracert */
|
|
/* behind a Linux 2.2 masquerading firewall would fail*/
|
|
/* (rep_icmp_header->icmp_cksum!=cksum) || */
|
|
(rep_icmp_header->icmp_seq!=seq)) {
|
|
/* This was not a reply to one of our packets after all */
|
|
TRACE("skipping type,code=%d,%d id,seq=%d,%d cksum=%d\n",
|
|
rep_icmp_header->icmp_type,rep_icmp_header->icmp_code,
|
|
rep_icmp_header->icmp_id,rep_icmp_header->icmp_seq,
|
|
rep_icmp_header->icmp_cksum);
|
|
TRACE("expected type,code=8,0 id,seq=%d,%d cksum=%d\n",
|
|
id,seq,
|
|
cksum);
|
|
ier->Status=IP_REQ_TIMED_OUT;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ier->Status==IP_REQ_TIMED_OUT) {
|
|
/* This packet was not for us.
|
|
* Decrease the timeout so that we don't enter an endless loop even
|
|
* if we get flooded with ICMP packets that are not for us.
|
|
*/
|
|
#ifdef __REACTOS__
|
|
int t = Timeout - (recv_time - send_time);
|
|
if (t < 0) t = 0;
|
|
timeout.tv_sec = t / 1000;
|
|
timeout.tv_usec = (t % 1000) * 1000;
|
|
FD_ZERO(&fdr);
|
|
FD_SET(icp->sid, &fdr);
|
|
#else
|
|
DWORD t = (recv_time - send_time);
|
|
if (Timeout > t) Timeout -= t;
|
|
else Timeout = 0;
|
|
#endif
|
|
continue;
|
|
} else {
|
|
/* This is a reply to our packet */
|
|
memcpy(&ier->Address,&ip_header->ip_src,sizeof(IPAddr));
|
|
/* Status is already set */
|
|
ier->RoundTripTime= recv_time - send_time;
|
|
ier->DataSize=res-ip_header_len-ICMP_MINLEN;
|
|
ier->Reserved=0;
|
|
ier->Data=endbuf-ier->DataSize;
|
|
memmove(ier->Data,((char*)ip_header)+ip_header_len+ICMP_MINLEN,ier->DataSize);
|
|
ier->Options.Ttl=ip_header->ip_ttl;
|
|
ier->Options.Tos=ip_header->ip_tos;
|
|
ier->Options.Flags=ip_header->ip_off >> 13;
|
|
ier->Options.OptionsSize=ip_header_len-sizeof(struct ip);
|
|
if (ier->Options.OptionsSize!=0) {
|
|
ier->Options.OptionsData=(unsigned char *) ier->Data-ier->Options.OptionsSize;
|
|
/* FIXME: We are supposed to rearrange the option's 'source route' data */
|
|
memmove(ier->Options.OptionsData,((char*)ip_header)+ip_header_len,ier->Options.OptionsSize);
|
|
endbuf=(char*)ier->Options.OptionsData;
|
|
} else {
|
|
ier->Options.OptionsData=NULL;
|
|
endbuf=ier->Data;
|
|
}
|
|
|
|
/* Prepare for the next packet */
|
|
ier++;
|
|
#ifndef __REACTOS__
|
|
ip_header=(struct ip*)(((char*)ip_header)+sizeof(ICMP_ECHO_REPLY));
|
|
maxlen=endbuf-(char*)ip_header;
|
|
#endif
|
|
|
|
/* Check out whether there is more but don't wait this time */
|
|
#ifdef __REACTOS__
|
|
timeout.tv_sec=0;
|
|
timeout.tv_usec=0;
|
|
#else
|
|
Timeout=0;
|
|
#endif
|
|
}
|
|
#ifdef __REACTOS__
|
|
FD_ZERO(&fdr);
|
|
FD_SET(icp->sid,&fdr);
|
|
#endif
|
|
}
|
|
#ifdef __REACTOS__
|
|
HeapFree(GetProcessHeap(), 0, ip_header);
|
|
#endif
|
|
res=ier-(ICMP_ECHO_REPLY*)ReplyBuffer;
|
|
if (res==0)
|
|
#ifdef __REACTOS__
|
|
{
|
|
ier->Status = IP_REQ_TIMED_OUT;
|
|
#endif
|
|
SetLastError(IP_REQ_TIMED_OUT);
|
|
#ifdef __REACTOS__
|
|
}
|
|
#endif
|
|
TRACE("received %d replies\n",res);
|
|
return res;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* IcmpSendEcho2 (IPHLPAPI.@)
|
|
*/
|
|
DWORD WINAPI IcmpSendEcho2(
|
|
HANDLE IcmpHandle,
|
|
HANDLE Event,
|
|
PIO_APC_ROUTINE ApcRoutine,
|
|
PVOID ApcContext,
|
|
IPAddr DestinationAddress,
|
|
LPVOID RequestData,
|
|
WORD RequestSize,
|
|
PIP_OPTION_INFORMATION RequestOptions,
|
|
LPVOID ReplyBuffer,
|
|
DWORD ReplySize,
|
|
DWORD Timeout
|
|
)
|
|
{
|
|
TRACE("(%p, %p, %p, %p, %08x, %p, %d, %p, %p, %d, %d): stub\n", IcmpHandle,
|
|
Event, ApcRoutine, ApcContext, DestinationAddress, RequestData,
|
|
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
|
|
if (Event)
|
|
{
|
|
FIXME("unsupported for events\n");
|
|
return 0;
|
|
}
|
|
if (ApcRoutine)
|
|
{
|
|
FIXME("unsupported for APCs\n");
|
|
return 0;
|
|
}
|
|
return IcmpSendEcho(IcmpHandle, DestinationAddress, RequestData,
|
|
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* IcmpSendEcho2Ex (IPHLPAPI.@)
|
|
*/
|
|
DWORD WINAPI IcmpSendEcho2Ex(
|
|
HANDLE IcmpHandle,
|
|
HANDLE Event,
|
|
PIO_APC_ROUTINE ApcRoutine,
|
|
PVOID ApcContext,
|
|
IPAddr SourceAddress,
|
|
IPAddr DestinationAddress,
|
|
LPVOID RequestData,
|
|
WORD RequestSize,
|
|
PIP_OPTION_INFORMATION RequestOptions,
|
|
LPVOID ReplyBuffer,
|
|
DWORD ReplySize,
|
|
DWORD Timeout
|
|
)
|
|
{
|
|
TRACE("(%p, %p, %p, %p, %08x, %08x, %p, %d, %p, %p, %d, %d): stub\n", IcmpHandle,
|
|
Event, ApcRoutine, ApcContext, SourceAddress, DestinationAddress, RequestData,
|
|
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
|
|
if (Event)
|
|
{
|
|
FIXME("unsupported for events\n");
|
|
return 0;
|
|
}
|
|
if (ApcRoutine)
|
|
{
|
|
FIXME("unsupported for APCs\n");
|
|
return 0;
|
|
}
|
|
if (SourceAddress)
|
|
{
|
|
FIXME("unsupported for source addresses\n");
|
|
return 0;
|
|
}
|
|
|
|
return IcmpSendEcho(IcmpHandle, DestinationAddress, RequestData,
|
|
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
|
|
}
|
|
|
|
/*
|
|
* Copyright (c) 1989 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Mike Muuss.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|