Sweden-Number/dlls/wsock32/socket.c

695 lines
23 KiB
C

/*
* WSOCK32 specific functions
*
* Copyright (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
*/
#include "config.h"
#include <sys/types.h>
#include "windef.h"
#include "debugtools.h"
#include "winsock2.h"
#include "winnt.h"
#include "wscontrol.h"
#include <ctype.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef HAVE_SYS_SOCKIO_H
# include <sys/sockio.h>
#endif
#ifdef HAVE_NET_IF_H
# include <net/if.h>
#endif
DEFAULT_DEBUG_CHANNEL(winsock);
/***********************************************************************
* WsControl()
*
* WsControl seems to be an undocumented Win95 function. A lot of
* discussion about WsControl can be found on the net, e.g.
* Subject: Re: WSOCK32.DLL WsControl Exported Function
* From: "Peter Rindfuss" <rindfuss-s@medea.wz-berlin.de>
* Date: 1997/08/17
*
* WSCNTL_TCPIP_QUERY_INFO option is partially implemeted based
* on observing the behaviour of WsControl with an app in
* Windows 98. It is not fully implemented, and there could
* be (are?) errors due to incorrect assumptions made.
*
*
* WsControl returns WSCTL_SUCCESS on success.
* STATUS_BUFFER_TOO_SMALL is returned if the output buffer length
* (*pcbResponseInfoLen) is too small, otherwise errors return -1.
*
* It doesn't seem to generate errors that can be retrieved by
* WSAGetLastError().
*
*/
DWORD WINAPI WsControl(DWORD protocoll,
DWORD action,
LPVOID pRequestInfo,
LPDWORD pcbRequestInfoLen,
LPVOID pResponseInfo,
LPDWORD pcbResponseInfoLen)
{
/* Get the command structure into a pointer we can use,
rather than void */
TDIObjectID *pcommand = (TDIObjectID *)pRequestInfo;
TRACE (" WsControl TOI_ID=>0x%lx<, {TEI_ENTITY=0x%lx, TEI_INSTANCE=0x%lx}, TOI_CLASS=0x%lx, TOI_TYPE=0x%lx\n",
pcommand->toi_id, pcommand->toi_entity.tei_entity, pcommand->toi_entity.tei_instance,
pcommand->toi_class, pcommand->toi_type );
switch (action)
{
case WSCNTL_TCPIP_QUERY_INFO:
{
switch (pcommand->toi_id)
{
/*
ENTITY_LIST_ID seems to get number of adapters in the system.
(almost like an index to be used when calling other WsControl options)
*/
case ENTITY_LIST_ID:
{
TDIEntityID *baseptr = pResponseInfo;
int numInt = 0, i;
if (pcommand->toi_class != INFO_CLASS_GENERIC &&
pcommand->toi_type != INFO_TYPE_PROVIDER)
{
FIXME ("Unexpected Option for ENTITY_LIST_ID request -> toi_class=0x%lx, toi_type=0x%lx\n",
pcommand->toi_class, pcommand->toi_type);
return (WSAEOPNOTSUPP);
}
numInt = WSCNTL_GetInterfaceCount();
if (numInt < 0)
{
ERR ("Unable to open /proc filesystem to determine number of network interfaces!\n");
return (-1);
}
if (*pcbResponseInfoLen < sizeof(TDIEntityID)*(numInt*2) )
{
return (STATUS_BUFFER_TOO_SMALL);
}
/* 0 it out first */
memset(baseptr, 0, sizeof(TDIEntityID)*(numInt*2));
for (i=0; i<numInt; i++)
{
/* tei_instance is an network interface identifier.
I'm not quite sure what the difference is between tei_entity values of
CL_NL_ENTITY and IF_ENTITY */
baseptr->tei_entity = CL_NL_ENTITY; baseptr->tei_instance = i; baseptr++;
baseptr->tei_entity = IF_ENTITY; baseptr->tei_instance = i; baseptr++;
}
/* Calculate size of out buffer */
*pcbResponseInfoLen = sizeof(TDIEntityID)*(numInt*2);
break;
}
/* ENTITY_TYPE_ID is used to obtain simple information about a
network card, such as MAC Address, description, interface type,
number of network addresses, etc. */
case ENTITY_TYPE_ID: /* ALSO: IP_MIB_STATS_ID */
{
if (pcommand->toi_class == INFO_CLASS_GENERIC && pcommand->toi_type == INFO_TYPE_PROVIDER)
{
if (pcommand->toi_entity.tei_entity == IF_ENTITY)
{
* ((ULONG *)pResponseInfo) = IF_MIB;
/* Calculate size of out buffer */
*pcbResponseInfoLen = sizeof (ULONG);
}
else if (pcommand->toi_entity.tei_entity == CL_NL_ENTITY)
{
* ((ULONG *)pResponseInfo) = CL_NL_IP;
/* Calculate size of out buffer */
*pcbResponseInfoLen = sizeof (ULONG);
}
}
else if (pcommand->toi_class == INFO_CLASS_PROTOCOL &&
pcommand->toi_type == INFO_TYPE_PROVIDER)
{
if (pcommand->toi_entity.tei_entity == IF_ENTITY)
{
/* In this case, we are requesting specific information about a
a particular network adapter. (MAC Address, speed, data transmitted/received,
etc.)
*/
IFEntry *IntInfo = (IFEntry *) pResponseInfo;
char ifName[512];
struct ifreq ifInfo;
int sock;
if (!WSCNTL_GetInterfaceName(pcommand->toi_entity.tei_instance, ifName))
{
ERR ("Unable to parse /proc filesystem!\n");
return (-1);
}
/* Get a socket so that we can use ioctl */
if ( (sock = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
{
ERR ("Error creating socket!\n");
return (-1);
}
/* 0 out return structure first */
memset (IntInfo, 0, sizeof(IFEntry));
/* Interface ID */
IntInfo->if_index = pcommand->toi_entity.tei_instance;
/* MAC Address - Let's try to do this in a cross-platform way... */
#if defined(SIOCGIFHWADDR) /* Linux */
strcpy(ifInfo.ifr_name, ifName);
if (ioctl(sock, SIOCGIFHWADDR, &ifInfo) < 0)
{
ERR ("Error obtaining MAC Address!\n");
close(sock);
return (-1);
}
else
{
/* FIXME: Is it correct to assume size of 6? */
memcpy(IntInfo->if_physaddr, ifInfo.ifr_hwaddr.sa_data, 6);
IntInfo->if_physaddrlen=6;
}
#elif defined(SIOCGENADDR) /* Solaris */
if (ioctl(sock, SIOCGENADDR, &ifInfo) < 0)
{
ERR ("Error obtaining MAC Address!\n");
close(sock);
return (-1);
}
else
{
/* FIXME: Is it correct to assume size of 6? */
memcpy(IntInfo->if_physaddr, ifInfo.ifr_enaddr, 6);
IntInfo->if_physaddrlen=6;
}
#else
memset (IntInfo->if_physaddr, 0, 6);
ERR ("Unable to determine MAC Address on your platform!\n");
#endif
/* Interface name and length */
strcpy (IntInfo->if_descr, ifName);
IntInfo->if_descrlen= strlen (IntInfo->if_descr);
/* Obtain bytes transmitted/received for interface */
if ( (WSCNTL_GetTransRecvStat(pcommand->toi_entity.tei_instance,
&IntInfo->if_inoctets, &IntInfo->if_outoctets)) < 0)
{
ERR ("Error obtaining transmit/receive stats for the network interface!\n");
close(sock);
return (-1);
}
/* FIXME: How should the below be properly calculated? ******************/
IntInfo->if_type = 0x6; /* Ethernet (?) */
IntInfo->if_speed = 1000000; /* Speed of interface (bits per second?) */
/************************************************************************/
close(sock);
*pcbResponseInfoLen = sizeof (IFEntry) + IntInfo->if_descrlen;
}
else if (pcommand->toi_entity.tei_entity == CL_NL_ENTITY)
{
IPSNMPInfo *infoStruc = (IPSNMPInfo *) pResponseInfo;
int numInt;
/* This case is used to obtain general statistics about the
network */
if (*pcbResponseInfoLen < sizeof(IPSNMPInfo) )
{
return (STATUS_BUFFER_TOO_SMALL);
}
else
{
/* 0 it out first */
memset(infoStruc, 0, sizeof(IPSNMPInfo));
/* Get the number of interfaces */
numInt = WSCNTL_GetInterfaceCount();
if (numInt < 0)
{
ERR ("Unable to open /proc filesystem to determine number of network interfaces!\n");
return (-1);
}
infoStruc->ipsi_numif = numInt; /* # of interfaces */
infoStruc->ipsi_numaddr = numInt; /* # of addresses */
infoStruc->ipsi_numroutes = numInt; /* # of routes ~ FIXME - Is this right? */
/* FIXME: How should the below be properly calculated? ******************/
infoStruc->ipsi_forwarding = 0x0;
infoStruc->ipsi_defaultttl = 0x0;
infoStruc->ipsi_inreceives = 0x0;
infoStruc->ipsi_inhdrerrors = 0x0;
infoStruc->ipsi_inaddrerrors = 0x0;
infoStruc->ipsi_forwdatagrams = 0x0;
infoStruc->ipsi_inunknownprotos = 0x0;
infoStruc->ipsi_indiscards = 0x0;
infoStruc->ipsi_indelivers = 0x0;
infoStruc->ipsi_outrequests = 0x0;
infoStruc->ipsi_routingdiscards = 0x0;
infoStruc->ipsi_outdiscards = 0x0;
infoStruc->ipsi_outnoroutes = 0x0;
infoStruc->ipsi_reasmtimeout = 0x0;
infoStruc->ipsi_reasmreqds = 0x0;
infoStruc->ipsi_reasmoks = 0x0;
infoStruc->ipsi_reasmfails = 0x0;
infoStruc->ipsi_fragoks = 0x0;
infoStruc->ipsi_fragfails = 0x0;
infoStruc->ipsi_fragcreates = 0x0;
/************************************************************************/
/* Calculate size of out buffer */
*pcbResponseInfoLen = sizeof(IPSNMPInfo);
}
}
}
else
{
FIXME ("Unexpected Option for ENTITY_TYPE_ID request -> toi_class=0x%lx, toi_type=0x%lx\n",
pcommand->toi_class, pcommand->toi_type);
return (WSAEOPNOTSUPP);
}
break;
}
/* IP_MIB_ADDRTABLE_ENTRY_ID is used to obtain more detailed information about a
particular network adapter */
case IP_MIB_ADDRTABLE_ENTRY_ID:
{
IPAddrEntry *baseIPInfo = (IPAddrEntry *) pResponseInfo;
char ifName[512];
struct ifreq ifInfo;
int sock;
if (*pcbResponseInfoLen < sizeof(IPAddrEntry))
{
return (STATUS_BUFFER_TOO_SMALL);
}
if (!WSCNTL_GetInterfaceName(pcommand->toi_entity.tei_instance, ifName))
{
ERR ("Unable to parse /proc filesystem!\n");
return (-1);
}
/* Get a socket so we can use ioctl */
if ( (sock = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
{
ERR ("Error creating socket!\n");
return (-1);
}
/* 0 it out first */
memset(baseIPInfo, 0, sizeof(IPAddrEntry) );
/* Interface Id */
baseIPInfo->iae_index = pcommand->toi_entity.tei_instance;
/* IP Address */
strcpy (ifInfo.ifr_name, ifName);
ifInfo.ifr_addr.sa_family = AF_INET;
if (ioctl(sock, SIOCGIFADDR, &ifInfo) < 0)
{
baseIPInfo->iae_addr = 0x0;
}
else
{
struct ws_sockaddr_in *ipTemp = (struct ws_sockaddr_in *)&ifInfo.ifr_addr;
baseIPInfo->iae_addr = ipTemp->sin_addr.S_un.S_addr;
}
/* Broadcast Address */
strcpy (ifInfo.ifr_name, ifName);
if (ioctl(sock, SIOCGIFBRDADDR, &ifInfo) < 0)
{
baseIPInfo->iae_bcastaddr = 0x0;
}
else
{
struct ws_sockaddr_in *ipTemp = (struct ws_sockaddr_in *)&ifInfo.ifr_broadaddr;
baseIPInfo->iae_bcastaddr = ipTemp->sin_addr.S_un.S_addr;
}
/* Subnet Mask */
strcpy(ifInfo.ifr_name, ifName);
if (ioctl(sock, SIOCGIFNETMASK, &ifInfo) < 0)
{
baseIPInfo->iae_mask = 0x0;
}
else
{
/* Trying to avoid some compile problems across platforms.
(Linux, FreeBSD, Solaris...) */
#ifndef ifr_netmask
#ifndef ifr_addr
baseIPInfo->iae_mask = 0;
ERR ("Unable to determine Netmask on your platform!\n");
#else
struct ws_sockaddr_in *ipTemp = (struct ws_sockaddr_in *)&ifInfo.ifr_addr;
baseIPInfo->iae_mask = ipTemp->sin_addr.S_un.S_addr;
#endif
#else
struct ws_sockaddr_in *ipTemp = (struct ws_sockaddr_in *)&ifInfo.ifr_netmask;
baseIPInfo->iae_mask = ipTemp->sin_addr.S_un.S_addr;
#endif
}
/* FIXME: How should the below be properly calculated? ******************/
baseIPInfo->iae_reasmsize = 0x0;
baseIPInfo->iae_context = 0x0;
baseIPInfo->iae_pad = 0x0;
/************************************************************************/
/* Calculate size of out buffer */
*pcbResponseInfoLen = sizeof(IPAddrEntry);
close(sock);
break;
}
default:
{
FIXME ("Command ID Not Supported -> toi_id=0x%lx, toi_entity={tei_entity=0x%lx, tei_instance=0x%lx}, toi_class=0x%lx, toi_type=0x%lx\n",
pcommand->toi_id, pcommand->toi_entity.tei_entity, pcommand->toi_entity.tei_instance,
pcommand->toi_class, pcommand->toi_type);
return (WSAEOPNOTSUPP);
}
}
break;
}
case WSCNTL_TCPIP_ICMP_ECHO:
{
unsigned int addr = *(unsigned int*)pRequestInfo;
#if 0
int timeout= *(unsigned int*)(inbuf+4);
short x1 = *(unsigned short*)(inbuf+8);
short sendbufsize = *(unsigned short*)(inbuf+10);
char x2 = *(unsigned char*)(inbuf+12);
char ttl = *(unsigned char*)(inbuf+13);
char service = *(unsigned char*)(inbuf+14);
char type= *(unsigned char*)(inbuf+15); /* 0x2: don't fragment*/
#endif
FIXME("(ICMP_ECHO) to 0x%08x stub \n", addr);
break;
}
default:
{
FIXME("Protocoll Not Supported -> protocoll=0x%lx, action=0x%lx, Request=%p, RequestLen=%p, Response=%p, ResponseLen=%p\n",
protocoll, action, pRequestInfo, pcbRequestInfoLen, pResponseInfo, pcbResponseInfoLen);
return (WSAEOPNOTSUPP);
}
}
return (WSCTL_SUCCESS);
}
/*
Helper function for WsControl - Get count of the number of interfaces
by parsing /proc filesystem.
*/
int WSCNTL_GetInterfaceCount(void)
{
FILE *procfs;
char buf[512]; /* Size doesn't matter, something big */
int intcnt=0;
/* Open /proc filesystem file for network devices */
procfs = fopen(PROCFS_NETDEV_FILE, "r");
if (!procfs)
{
/* If we can't open the file, return an error */
return (-1);
}
/* Omit first two lines, they are only headers */
fgets(buf, sizeof buf, procfs);
fgets(buf, sizeof buf, procfs);
while (fgets(buf, sizeof buf, procfs))
{
/* Each line in the file represents a network interface */
intcnt++;
}
fclose(procfs);
return(intcnt);
}
/*
Helper function for WsControl - Get name of device from interface number
by parsing /proc filesystem.
*/
int WSCNTL_GetInterfaceName(int intNumber, char *intName)
{
FILE *procfs;
char buf[512]; /* Size doesn't matter, something big */
int i;
/* Open /proc filesystem file for network devices */
procfs = fopen(PROCFS_NETDEV_FILE, "r");
if (!procfs)
{
/* If we can't open the file, return an error */
return (-1);
}
/* Omit first two lines, they are only headers */
fgets(buf, sizeof(buf), procfs);
fgets(buf, sizeof(buf), procfs);
for (i=0; i<intNumber; i++)
{
/* Skip the lines that don't interest us. */
fgets(buf, sizeof(buf), procfs);
}
fgets(buf, sizeof(buf), procfs); /* This is the line we want */
/* Parse out the line, grabbing only the name of the device
to the intName variable
The Line comes in like this: (we only care about the device name)
lo: 21970 377 0 0 0 0 0 0 21970 377 0 0 0 0 0 0
*/
i=0;
while (isspace(buf[i])) /* Skip initial space(s) */
{
i++;
}
while (buf[i])
{
if (isspace(buf[i]))
{
break;
}
if (buf[i] == ':') /* FIXME: Not sure if this block (alias detection) works properly */
{
/* This interface could be an alias... */
int hold = i;
char *dotname = intName;
*intName++ = buf[i++];
while (isdigit(buf[i]))
{
*intName++ = buf[i++];
}
if (buf[i] != ':')
{
/* ... It wasn't, so back up */
i = hold;
intName = dotname;
}
if (buf[i] == '\0')
{
fclose(procfs);
return(FALSE);
}
i++;
break;
}
*intName++ = buf[i++];
}
*intName++ = '\0';
fclose(procfs);
return(TRUE);
}
/*
Helper function for WsControl - This function returns the bytes (octets) transmitted
and received for the supplied interface number from the /proc fs.
*/
int WSCNTL_GetTransRecvStat(int intNumber, unsigned long *transBytes, unsigned long *recvBytes)
{
FILE *procfs;
char buf[512], result[512]; /* Size doesn't matter, something big */
int i, bufPos, resultPos;
/* Open /proc filesystem file for network devices */
procfs = fopen(PROCFS_NETDEV_FILE, "r");
if (!procfs)
{
/* If we can't open the file, return an error */
return (-1);
}
/* Omit first two lines, they are only headers */
fgets(buf, sizeof(buf), procfs);
fgets(buf, sizeof(buf), procfs);
for (i=0; i<intNumber; i++)
{
/* Skip the lines that don't interest us. */
fgets(buf, sizeof(buf), procfs);
}
fgets(buf, sizeof(buf), procfs); /* This is the line we want */
/* Parse out the line, grabbing the number of bytes transmitted
and received on the interface.
The Line comes in like this: (we care about columns 2 and 10)
lo: 21970 377 0 0 0 0 0 0 21970 377 0 0 0 0 0 0
*/
/* Start at character 0 in the buffer */
bufPos=0;
/* Skip initial space(s) */
while (isspace(buf[bufPos]))
bufPos++;
/* Skip the name and its trailing spaces (if any) */
while (buf[bufPos])
{
if (isspace(buf[bufPos]))
break;
if (buf[bufPos] == ':') /* Could be an alias */
{
int hold = bufPos;
while(isdigit (buf[bufPos]))
bufPos++;
if (buf[bufPos] != ':')
bufPos = hold;
if (buf[bufPos] == '\0')
{
fclose(procfs);
return(FALSE);
}
bufPos++;
break;
}
bufPos++;
}
while (isspace(buf[bufPos]))
bufPos++;
/* This column (#2) is the number of bytes received. */
resultPos = 0;
while (!isspace(buf[bufPos]))
{
result[resultPos] = buf[bufPos];
result[resultPos+1]='\0';
resultPos++; bufPos++;
}
*recvBytes = strtoul (result, NULL, 10); /* convert string to unsigned long, using base 10 */
/* Skip columns #3 to #9 (Don't need them) */
for (i=0; i<7; i++)
{
while (isspace(buf[bufPos]))
bufPos++;
while (!isspace(buf[bufPos]))
bufPos++;
}
/* This column (#10) is the number of bytes transmitted */
while (isspace(buf[bufPos]))
bufPos++;
resultPos = 0;
while (!isspace(buf[bufPos]))
{
result[resultPos] = buf[bufPos];
result[resultPos+1]='\0';
resultPos++; bufPos++;
}
*transBytes = strtoul (result, NULL, 10); /* convert string to unsigned long, using base 10 */
fclose(procfs);
return(TRUE);
}
/***********************************************************************
* WS_s_perror (WSOCK32.1108)
*/
void WINAPI WS_s_perror(LPCSTR message)
{
FIXME("(%s): stub\n",message);
return;
}