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reactos/dll/win32/iphlpapi/icmp.c
Serge Gautherie 9f5f7a97f8 [IPHLPAPI] icmp.c: Restore sync after Wine Staging 1.7.55 
Mark all our (new) differences.
2019-08-20 15:20:01 +02:00

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/*
* ICMP
*
* Francois Gouget, 1999, based on the work of
* RW Hall, 1999, based on public domain code PING.C by Mike Muus (1983)
* and later works (c) 1989 Regents of Univ. of California - see copyright
* notice at end of source-code.
* Copyright 2015 Sebastian Lackner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* Future work:
* - Systems like FreeBSD don't seem to support the IP_TTL option and maybe others.
* But using IP_HDRINCL and building the IP header by hand might work.
* - Not all IP options are supported.
* - Are ICMP handles real handles, i.e. inheritable and all? There might be some
* more work to do here, including server side stuff with synchronization.
* - This API should probably be thread safe. Is it really?
* - Using the winsock functions has not been tested.
*/
#ifdef __REACTOS__
#include "iphlpapi_private.h"
#else // ! __REACTOS__
#include "config.h"
#include "wine/port.h"
#include <sys/types.h>
#ifdef HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_NETINET_IN_SYSTM_H
# include <netinet/in_systm.h>
#endif
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <stdarg.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif
#ifdef HAVE_SYS_WAIT_H
# include <sys/wait.h>
#endif
#define USE_WS_PREFIX
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "winternl.h"
#include "ipexport.h"
#include "icmpapi.h"
#include "wine/debug.h"
#endif // ! __REACTOS__
/* Set up endianness macros for the ip and ip_icmp BSD headers */
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BYTE_ORDER
#ifdef WORDS_BIGENDIAN
#define BYTE_ORDER BIG_ENDIAN
#else
#define BYTE_ORDER LITTLE_ENDIAN
#endif
#endif /* BYTE_ORDER */
#define u_int16_t WORD
#define u_int32_t DWORD
/* These are BSD headers. We use these here because they are needed on
* libc5 Linux systems. On other platforms they are usually simply more
* complete than the native stuff, and cause less portability problems
* so we use them anyway.
*/
#include "ip.h"
#include "ip_icmp.h"
WINE_DEFAULT_DEBUG_CHANNEL(icmp);
WINE_DECLARE_DEBUG_CHANNEL(winediag);
typedef struct {
int sid;
IP_OPTION_INFORMATION default_opts;
} icmp_t;
#define IP_OPTS_UNKNOWN 0
#define IP_OPTS_DEFAULT 1
#define IP_OPTS_CUSTOM 2
/* The sequence number is unique process wide, so that all threads
* have a distinct sequence number.
*/
static LONG icmp_sequence=0;
static int in_cksum(u_short *addr, int len)
{
int nleft=len;
u_short *w = addr;
int sum = 0;
u_short answer = 0;
while (nleft > 1) {
sum += *w++;
nleft -= 2;
}
if (nleft == 1) {
*(u_char *)(&answer) = *(u_char *)w;
sum += answer;
}
sum = (sum >> 16) + (sum & 0xffff);
sum += (sum >> 16);
answer = ~sum;
return(answer);
}
/*
* Exported Routines.
*/
/***********************************************************************
* Icmp6CreateFile (IPHLPAPI.@)
*/
HANDLE WINAPI Icmp6CreateFile(VOID)
{
icmp_t* icp;
#ifdef __REACTOS__
int sid;
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != ERROR_SUCCESS)
{
ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
return INVALID_HANDLE_VALUE;
}
sid=socket(AF_INET6,SOCK_RAW,IPPROTO_ICMPV6);
#else
int sid=socket(AF_INET6,SOCK_RAW,IPPROTO_ICMPV6);
if (sid < 0)
{
/* Mac OS X supports non-privileged ICMP via SOCK_DGRAM type. */
sid=socket(AF_INET6,SOCK_DGRAM,IPPROTO_ICMPV6);
}
#endif
if (sid < 0) {
ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
SetLastError(ERROR_ACCESS_DENIED);
return INVALID_HANDLE_VALUE;
}
icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
if (icp==NULL) {
#ifdef __REACTOS__
closesocket(sid);
WSACleanup();
#else
close(sid);
#endif
SetLastError(IP_NO_RESOURCES);
return INVALID_HANDLE_VALUE;
}
icp->sid=sid;
icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
return (HANDLE)icp;
}
/***********************************************************************
* Icmp6SendEcho2 (IPHLPAPI.@)
*/
DWORD WINAPI Icmp6SendEcho2(
HANDLE IcmpHandle,
HANDLE Event,
PIO_APC_ROUTINE ApcRoutine,
PVOID ApcContext,
struct sockaddr_in6* SourceAddress,
struct sockaddr_in6* DestinationAddress,
LPVOID RequestData,
WORD RequestSize,
PIP_OPTION_INFORMATION RequestOptions,
LPVOID ReplyBuffer,
DWORD ReplySize,
DWORD Timeout
)
{
FIXME("(%p, %p, %p, %p, %p, %p, %p, %d, %p, %p, %d, %d): stub\n", IcmpHandle, Event,
ApcRoutine, ApcContext, SourceAddress, DestinationAddress, RequestData,
RequestSize, RequestOptions, ReplyBuffer, ReplySize, Timeout);
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return 0;
}
/***********************************************************************
* IcmpCreateFile (IPHLPAPI.@)
*/
HANDLE WINAPI IcmpCreateFile(VOID)
{
#ifndef __REACTOS__
static int once;
#endif
icmp_t* icp;
#ifdef __REACTOS__
int sid;
WSADATA wsaData;
if (WSAStartup(MAKEWORD(2, 2), &wsaData) != ERROR_SUCCESS)
{
ERR_(winediag)("Failed to use ICMPV6 (network ping), this requires special permissions.\n");
return INVALID_HANDLE_VALUE;
}
sid=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
if (sid < 0) {
ERR_(winediag)("Failed to use ICMP (network ping), this requires special permissions.\n");
SetLastError(ERROR_ACCESS_DENIED);
return INVALID_HANDLE_VALUE;
}
#else
int sid=socket(AF_INET,SOCK_RAW,IPPROTO_ICMP);
if (sid < 0)
{
/* Mac OS X supports non-privileged ICMP via SOCK_DGRAM type. */
sid=socket(AF_INET,SOCK_DGRAM,IPPROTO_ICMP);
}
if (sid < 0 && !once++) {
FIXME_(winediag)("Failed to use ICMP (network ping), this requires special permissions.\n");
FIXME_(winediag)("Falling back to system 'ping' command as a workaround.\n");
}
#endif
icp=HeapAlloc(GetProcessHeap(), 0, sizeof(*icp));
if (icp==NULL) {
#ifdef __REACTOS__
closesocket(sid);
WSACleanup();
#else
if (sid >= 0) close(sid);
#endif
SetLastError(IP_NO_RESOURCES);
return INVALID_HANDLE_VALUE;
}
icp->sid=sid;
icp->default_opts.OptionsSize=IP_OPTS_UNKNOWN;
return (HANDLE)icp;
}
/***********************************************************************
* IcmpCloseHandle (IPHLPAPI.@)
*/
BOOL WINAPI IcmpCloseHandle(HANDLE IcmpHandle)
{
icmp_t* icp=(icmp_t*)IcmpHandle;
#ifdef __REACTOS__
// REACTOS: Added a check for NULL handle, CORE-10707
if (IcmpHandle==INVALID_HANDLE_VALUE || IcmpHandle==NULL) {
#else
if (IcmpHandle==INVALID_HANDLE_VALUE) {
#endif
/* FIXME: in fact win98 seems to ignore the handle value !!! */
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
#ifdef __REACTOS__
shutdown(icp->sid,2);
#else
if (icp->sid >= 0) close(icp->sid);
#endif
HeapFree(GetProcessHeap (), 0, icp);
#ifdef __REACTOS__
WSACleanup();
#endif
return TRUE;
}
#ifndef __REACTOS__
static DWORD system_icmp(
IPAddr DestinationAddress,
LPVOID RequestData,
WORD RequestSize,
PIP_OPTION_INFORMATION RequestOptions,
LPVOID ReplyBuffer,
DWORD ReplySize,
DWORD Timeout
)
{
#ifdef HAVE_FORK
ICMP_ECHO_REPLY *reply = ReplyBuffer;
char ntoa_buffer[16]; /* 4*3 digits + 3 '.' + 1 '\0' */
char size_buffer[6]; /* 5 digits + '\0' */
char tos_buffer[4]; /* 3 digits + '\0' */
char ttl_buffer[4]; /* 3 digits + '\0' */
char time_buffer[11]; /* 10 digits + '\0' */
int i, pos, res, status, argc;
const char *argv[20];
struct in_addr addr;
int pipe_out[2];
pid_t pid, wpid;
char *ptr, *eol;
char buf[127];
/* Assemble the ping commandline */
argc = 0;
argv[argc++] = "ping";
argv[argc++] = "-c"; /* only send a single ping */
argv[argc++] = "1";
argv[argc++] = "-n"; /* numeric output only */
argv[argc++] = "-s"; /* request size */
sprintf(size_buffer, "%u", (RequestSize >= 16) ? RequestSize : 16);
argv[argc++] = size_buffer;
argv[argc++] = "-W"; /* timeout */
#ifdef __linux__
/* The linux 'ping' utlity expects a time in seconds */
Timeout = (Timeout + 999) / 1000;
#endif
sprintf(time_buffer, "%u", Timeout);
argv[argc++] = time_buffer;
if (RequestOptions)
{
#ifdef __linux__
argv[argc++] = "-Q"; /* tos option */
#else
argv[argc++] = "-z"; /* tos option */
#endif
sprintf(tos_buffer, "%u", RequestOptions->Tos);
argv[argc++] = tos_buffer;
#ifdef __linux__
/* TTL can only be specified for multicast addresses on FreeBSD/MacOS */
argv[argc++] = "-t"; /* ttl option */
sprintf(ttl_buffer, "%u", RequestOptions->Ttl);
argv[argc++] = ttl_buffer;
#endif
}
addr.s_addr = DestinationAddress;
if (!(ptr = inet_ntoa(addr)))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
strcpy(ntoa_buffer, ptr);
argv[argc++] = ntoa_buffer;
argv[argc] = NULL;
/* Dump commandline for debugging purposes */
TRACE("Ping commandline: ");
for (i = 0; i < argc; i++)
{
TRACE("%s ", debugstr_a(argv[i]));
}
TRACE("\n");
/* Prefill the reply struct with fallback values */
memset(reply, 0, sizeof(*reply));
reply->Address = DestinationAddress;
reply->RoundTripTime = 40;
reply->Options.Ttl = 120;
/* Create communication pipes */
#ifdef HAVE_PIPE2
if (pipe2(pipe_out, O_CLOEXEC) < 0)
#endif
{
if (pipe(pipe_out) < 0)
{
SetLastError(ERROR_OUTOFMEMORY);
return 0;
}
fcntl(pipe_out[0], F_SETFD, FD_CLOEXEC);
fcntl(pipe_out[1], F_SETFD, FD_CLOEXEC);
}
/* Fork child process */
pid = fork();
if (pid == -1)
{
close(pipe_out[0]);
close(pipe_out[1]);
SetLastError(ERROR_OUTOFMEMORY);
return 0;
}
/* Child process */
if (pid == 0)
{
static char lang_env[] = "LANG=C";
dup2(pipe_out[1], 1);
close(pipe_out[0]);
close(pipe_out[1]);
close(0);
close(2);
putenv(lang_env);
execvp(argv[0], (char **)argv);
_exit(1);
}
close(pipe_out[1]);
/* Wait for child and read output */
pos = 0;
do
{
if (pos >= sizeof(buf) - 1)
{
ERR("line too long, dropping buffer\n");
pos = 0;
}
/* read next block */
do
{
res = read(pipe_out[0], &buf[pos], (sizeof(buf) - 1) - pos);
}
while (res < 0 && errno == EINTR);
if (res < 0)
{
ERR("read failed: %s\n", strerror(errno));
break;
}
pos += res;
while (pos)
{
eol = memchr(buf, '\n', pos);
if (!eol) break;
*eol = 0;
TRACE("Received line: %s\n", debugstr_a(buf));
/* Interpret address */
if ((ptr = strstr(buf, "from ")))
{
int a, b, c, d;
if (sscanf(ptr + 5, "%u.%u.%u.%u", &a, &b, &c, &d) >= 4)
{
reply->Address = a | (b << 8) | (c << 16) | (d << 24);
addr.s_addr = reply->Address;
TRACE("Got address %s\n", inet_ntoa(addr));
}
}
/* Interpret ttl */
if ((ptr = strstr(buf, "ttl=")))
{
int val;
if (sscanf(ptr + 4, "%u", &val) >= 1)
{
reply->Options.Ttl = val;
TRACE("Got ttl %u\n", val);
}
}
/* Interpret time */
if ((ptr = strstr(buf, "time=")))
{
float val;
if (sscanf(ptr + 5, "%f", &val) >= 1)
{
reply->RoundTripTime = (unsigned int)(val + 0.5);
TRACE("Got rtt = %u\n", reply->RoundTripTime);
}
}
memmove(buf, eol + 1, pos - (eol + 1 - buf));
pos -= (eol + 1 - buf);
}
}
while (res > 0);
close(pipe_out[0]);
/* reap the child process */
do
{
wpid = waitpid(pid, &status, 0);
}
while (wpid < 0 && errno == EINTR);
/* fill out remaining struct fields */
if (wpid >= 0 && WIFEXITED(status) && WEXITSTATUS(status) == 0)
{
if (ReplySize < RequestSize + sizeof(*reply))
{
reply->Status = IP_BUF_TOO_SMALL;
reply->DataSize = 0;
reply->Data = NULL;
}
else
{
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.
*
*/
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