/* * RPCRT4 * */ #include "config.h" #include "windef.h" #include "wine/windef16.h" #include "winerror.h" #include "winbase.h" #include "rpc.h" #include #include #include #include #ifdef HAVE_SYS_FILE_H # include #endif #include #ifdef HAVE_SYS_SOCKET_H # include #endif #ifdef HAVE_SYS_SOCKIO_H # include #endif #ifdef HAVE_NET_IF_H # include #endif #ifdef HAVE_NETINET_IN_H # include #endif #include "debugtools.h" DEFAULT_DEBUG_CHANNEL(ole); /*********************************************************************** * RPCRT4_LibMain * * PARAMS * hinstDLL [I] handle to the DLL's instance * fdwReason [I] * lpvReserved [I] reserved, must be NULL * * RETURNS * Success: TRUE * Failure: FALSE */ static DWORD RPCRT4_dwProcessesAttached = 0; BOOL WINAPI RPCRT4_LibMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { switch (fdwReason) { case DLL_PROCESS_ATTACH: RPCRT4_dwProcessesAttached++; break; case DLL_PROCESS_DETACH: RPCRT4_dwProcessesAttached--; break; } return TRUE; } /************************************************************************* * UuidCreate [RPCRT4] * * Creates a 128bit UUID. * Implemented according the DCE specification for UUID generation. * Code is based upon uuid library in e2fsprogs by Theodore Ts'o. * Copyright (C) 1996, 1997 Theodore Ts'o. * * RETURNS * * S_OK if successful. */ RPC_STATUS WINAPI UuidCreate(UUID *Uuid) { static char has_init = 0; unsigned char a[6]; static int adjustment = 0; static struct timeval last = {0, 0}; static UINT16 clock_seq; struct timeval tv; unsigned long long clock_reg; UINT clock_high, clock_low; UINT16 temp_clock_seq, temp_clock_mid, temp_clock_hi_and_version; #ifdef HAVE_NET_IF_H int sd; struct ifreq ifr, *ifrp; struct ifconf ifc; char buf[1024]; int n, i; #endif /* Have we already tried to get the MAC address? */ if (!has_init) { #ifdef HAVE_NET_IF_H /* BSD 4.4 defines the size of an ifreq to be * max(sizeof(ifreq), sizeof(ifreq.ifr_name)+ifreq.ifr_addr.sa_len * However, under earlier systems, sa_len isn't present, so * the size is just sizeof(struct ifreq) */ #ifdef HAVE_SA_LEN # ifndef max # define max(a,b) ((a) > (b) ? (a) : (b)) # endif # define ifreq_size(i) max(sizeof(struct ifreq),\ sizeof((i).ifr_name)+(i).ifr_addr.sa_len) # else # define ifreq_size(i) sizeof(struct ifreq) # endif /* HAVE_SA_LEN */ sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP); if (sd < 0) { /* if we can't open a socket, just use random numbers */ /* set the multicast bit to prevent conflicts with real cards */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; } else { memset(buf, 0, sizeof(buf)); ifc.ifc_len = sizeof(buf); ifc.ifc_buf = buf; /* get the ifconf interface */ if (ioctl (sd, SIOCGIFCONF, (char *)&ifc) < 0) { close(sd); /* no ifconf, so just use random numbers */ /* set the multicast bit to prevent conflicts with real cards */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; } else { /* loop through the interfaces, looking for a valid one */ n = ifc.ifc_len; for (i = 0; i < n; i+= ifreq_size(*ifr) ) { ifrp = (struct ifreq *)((char *) ifc.ifc_buf+i); strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ); /* try to get the address for this interface */ # ifdef SIOCGIFHWADDR if (ioctl(sd, SIOCGIFHWADDR, &ifr) < 0) continue; memcpy(a, (unsigned char *)&ifr.ifr_hwaddr.sa_data, 6); # else # ifdef SIOCGENADDR if (ioctl(sd, SIOCGENADDR, &ifr) < 0) continue; memcpy(a, (unsigned char *) ifr.ifr_enaddr, 6); # else /* XXX we don't have a way of getting the hardware address */ close(sd); a[0] = 0; break; # endif /* SIOCGENADDR */ # endif /* SIOCGIFHWADDR */ /* make sure it's not blank */ if (!a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5]) continue; goto valid_address; } /* if we didn't find a valid address, make a random one */ /* once again, set multicast bit to avoid conflicts */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; valid_address: close(sd); } } #else /* no networking info, so generate a random address */ a[0] = (rand() & 0xff) | 0x80; a[1] = rand() & 0xff; a[2] = rand() & 0xff; a[3] = rand() & 0xff; a[4] = rand() & 0xff; a[5] = rand() & 0xff; #endif /* HAVE_NET_IF_H */ has_init = 1; } /* generate time element of GUID */ /* Assume that the gettimeofday() has microsecond granularity */ #define MAX_ADJUSTMENT 10 try_again: gettimeofday(&tv, 0); if ((last.tv_sec == 0) && (last.tv_usec == 0)) { clock_seq = ((rand() & 0xff) << 8) + (rand() & 0xff); clock_seq &= 0x1FFF; last = tv; last.tv_sec--; } if ((tv.tv_sec < last.tv_sec) || ((tv.tv_sec == last.tv_sec) && (tv.tv_usec < last.tv_usec))) { clock_seq = (clock_seq+1) & 0x1FFF; adjustment = 0; } else if ((tv.tv_sec == last.tv_sec) && (tv.tv_usec == last.tv_usec)) { if (adjustment >= MAX_ADJUSTMENT) goto try_again; adjustment++; } else adjustment = 0; clock_reg = tv.tv_usec*10 + adjustment; clock_reg += ((unsigned long long) tv.tv_sec)*10000000; clock_reg += (((unsigned long long) 0x01B21DD2) << 32) + 0x13814000; clock_high = clock_reg >> 32; clock_low = clock_reg; temp_clock_seq = clock_seq | 0x8000; temp_clock_mid = (UINT16)clock_high; temp_clock_hi_and_version = (clock_high >> 16) | 0x1000; /* pack the information into the GUID structure */ ((unsigned char*)&Uuid->Data1)[3] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&Uuid->Data1)[2] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&Uuid->Data1)[1] = (unsigned char)clock_low; clock_low >>= 8; ((unsigned char*)&Uuid->Data1)[0] = (unsigned char)clock_low; ((unsigned char*)&Uuid->Data2)[1] = (unsigned char)temp_clock_mid; temp_clock_mid >>= 8; ((unsigned char*)&Uuid->Data2)[0] = (unsigned char)temp_clock_mid; ((unsigned char*)&Uuid->Data3)[1] = (unsigned char)temp_clock_hi_and_version; temp_clock_hi_and_version >>= 8; ((unsigned char*)&Uuid->Data3)[0] = (unsigned char)temp_clock_hi_and_version; ((unsigned char*)Uuid->Data4)[1] = (unsigned char)temp_clock_seq; temp_clock_seq >>= 8; ((unsigned char*)Uuid->Data4)[0] = (unsigned char)temp_clock_seq; ((unsigned char*)Uuid->Data4)[2] = a[0]; ((unsigned char*)Uuid->Data4)[3] = a[1]; ((unsigned char*)Uuid->Data4)[4] = a[2]; ((unsigned char*)Uuid->Data4)[5] = a[3]; ((unsigned char*)Uuid->Data4)[6] = a[4]; ((unsigned char*)Uuid->Data4)[7] = a[5]; TRACE("%s", debugstr_guid(Uuid)); return S_OK; }