#define _GNU_SOURCE /* To get defns of NI_MAXSERV and NI_MAXHOST */
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#include <arpa/inet.h>
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#include <sys/socket.h>
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#include <netdb.h>
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#include <ifaddrs.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <linux/if_link.h>
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#include <sys/socket.h>
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#include <netpacket/packet.h>
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#include <valgrind/memcheck.h>
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#include <paths.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include "../os.h"
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#include "../../base/public-key.h"
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#include <openssl/evp.h>
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#include <openssl/bio.h>
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#include <openssl/pem.h>
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#include <openssl/err.h>
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#include <mntent.h>
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#include <dirent.h>
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#include <stdio.h>
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#include <dbus-1.0/dbus/dbus.h>
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#include <sys/utsname.h>
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static int ifname_position(char *ifnames, char * ifname, int ifnames_max) {
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int i, position;
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position = -1;
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for (i = 0; i < ifnames_max; i++) {
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if (strcmp(ifname, &ifnames[i * NI_MAXHOST]) == 0) {
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position = i;
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break;
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}
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}
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return position;
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}
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FUNCTION_RETURN getAdapterInfos(AdapterInfo * adapterInfos,
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size_t * adapter_info_size) {
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FUNCTION_RETURN f_return = FUNC_RET_OK;
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struct ifaddrs *ifaddr, *ifa;
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int family, i, n, if_name_position;
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unsigned int if_num, if_max;
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//char host[NI_MAXHOST];
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char *ifnames;
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if (getifaddrs(&ifaddr) == -1) {
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perror("getifaddrs");
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return FUNC_RET_ERROR;
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}
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if (adapterInfos != NULL) {
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memset(adapterInfos, 0, (*adapter_info_size) * sizeof(AdapterInfo));
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}
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/* count the maximum number of interfaces */
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for (ifa = ifaddr, if_max = 0; ifa != NULL; ifa = ifa->ifa_next, n++) {
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if (ifa->ifa_addr == NULL) {
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continue;
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}
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if_max++;
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}
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/* allocate space for names */
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ifnames = (char*) malloc(NI_MAXHOST * if_max);
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memset(ifnames, 0, NI_MAXHOST * if_max);
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/* Walk through linked list, maintaining head pointer so we
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can free list later */
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for (ifa = ifaddr, n = 0, if_num = 0; ifa != NULL;
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ifa = ifa->ifa_next, n++) {
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if (ifa->ifa_addr == NULL) {
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continue;
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}
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if_name_position = ifname_position(ifnames, ifa->ifa_name, if_num);
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//interface name not seen en advance
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if (if_name_position < 0) {
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strncpy(&ifnames[if_num * NI_MAXHOST], ifa->ifa_name, NI_MAXHOST);
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if (adapterInfos != NULL && if_num < *adapter_info_size) {
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strncpy(adapterInfos[if_num].description, ifa->ifa_name,
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NI_MAXHOST);
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}
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if_name_position = if_num;
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if_num++;
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if (adapterInfos == NULL) {
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continue;
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}
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}
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family = ifa->ifa_addr->sa_family;
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/* Display interface name and family (including symbolic
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form of the latter for the common families) */
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#ifdef _DEBUG
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printf("%-8s %s (%d)\n", ifa->ifa_name,
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(family == AF_PACKET) ? "AF_PACKET" :
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(family == AF_INET) ? "AF_INET" :
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(family == AF_INET6) ? "AF_INET6" : "???", family);
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#endif
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/* For an AF_INET* interface address, display the address
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* || family == AF_INET6*/
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if (family == AF_INET) {
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/*
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s = getnameinfo(ifa->ifa_addr,
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(family == AF_INET) ?
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sizeof(struct sockaddr_in) :
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sizeof(struct sockaddr_in6), host, NI_MAXHOST,
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NULL, 0, NI_NUMERICHOST);
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*/
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#ifdef _DEBUG
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s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host,
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NI_MAXHOST,
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NULL, 0, NI_NUMERICHOST);
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if (s != 0) {
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printf("getnameinfo() failed: %s\n", gai_strerror(s));
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}
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printf("\t\taddress: <%s>\n", host);
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#endif
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if (adapterInfos != NULL && if_name_position < *adapter_info_size) {
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struct sockaddr_in *s1 = (struct sockaddr_in*) ifa->ifa_addr;
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in_addr_t iaddr = s1->sin_addr.s_addr;
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adapterInfos[if_name_position].ipv4_address[0] = (iaddr
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& 0x000000ff);
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adapterInfos[if_name_position].ipv4_address[1] = (iaddr
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& 0x0000ff00) >> 8;
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adapterInfos[if_name_position].ipv4_address[2] = (iaddr
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& 0x00ff0000) >> 16;
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adapterInfos[if_name_position].ipv4_address[3] = (iaddr
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& 0xff000000) >> 24;
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}
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} else if (family == AF_PACKET && ifa->ifa_data != NULL) {
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struct sockaddr_ll *s1 = (struct sockaddr_ll*) ifa->ifa_addr;
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if (adapterInfos != NULL && if_name_position < *adapter_info_size) {
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for (i = 0; i < 6; i++) {
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adapterInfos[if_name_position].mac_address[i] =
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s1->sll_addr[i];
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#ifdef _DEBUG
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printf("%02x:", s1->sll_addr[i]);
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#endif
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}
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#ifdef _DEBUG
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printf("\t %s\n", ifa->ifa_name);
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#endif
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}
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}
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}
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*adapter_info_size = if_num;
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if (adapterInfos == NULL) {
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f_return = FUNC_RET_OK;
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} else if (*adapter_info_size < if_num) {
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f_return = FUNC_RET_BUFFER_TOO_SMALL;
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}
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freeifaddrs(ifaddr);
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free(ifnames);
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return f_return;
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}
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/**
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*Usually uuid are hex number separated by "-". this method read up to 8 hex
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*numbers skipping - characters.
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*@param uuid uuid as read in /dev/disk/by-uuid
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*@param buffer_out: unsigned char buffer[8] output buffer for result
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*/
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static void parseUUID(const char *uuid, unsigned char* buffer_out,
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unsigned int out_size) {
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size_t len;
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unsigned int i, j;
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char * hexuuid;
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unsigned char cur_character;
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//remove characters not in hex set
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len = strlen(uuid);
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hexuuid = (char *) malloc(sizeof(char) * strlen(uuid));
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memset(buffer_out, 0, out_size);
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memset(hexuuid, 0, sizeof(char) * strlen(uuid));
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for (i = 0, j = 0; i < len; i++) {
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if (isxdigit(uuid[i])) {
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hexuuid[j] = uuid[i];
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j++;
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} else {
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//skip
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continue;
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}
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}
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if (j % 2 == 1) {
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hexuuid[j++] = '0';
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}
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hexuuid[j] = '\0';
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for (i = 0; i < j / 2; i++) {
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sscanf(&hexuuid[i * 2], "%2hhx", &cur_character);
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buffer_out[i % out_size] = buffer_out[i % out_size] ^ cur_character;
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}
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free(hexuuid);
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}
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#define MAX_UNITS 20
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FUNCTION_RETURN getDiskInfos(DiskInfo * diskInfos, size_t * disk_info_size) {
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struct stat mount_stat, sym_stat;
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/*static char discard[1024];
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char device[64], name[64], type[64];
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*/
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char cur_dir[MAX_PATH];
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struct mntent *ent;
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int maxDrives, currentDrive, i, drive_found;
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__ino64_t *statDrives;
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DiskInfo *tmpDrives;
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FILE *aFile;
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DIR *disk_by_uuid_dir, *disk_by_label;
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struct dirent *dir;
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FUNCTION_RETURN result;
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if (diskInfos != NULL) {
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maxDrives = *disk_info_size;
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tmpDrives = diskInfos;
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} else {
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maxDrives = MAX_UNITS;
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tmpDrives = (DiskInfo *) malloc(sizeof(DiskInfo) * maxDrives);
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}
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memset(tmpDrives, 0, sizeof(DiskInfo) * maxDrives);
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statDrives = (__ino64_t *) malloc(maxDrives * sizeof(__ino64_t ));
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memset(statDrives, 0, sizeof(__ino64_t ) * maxDrives);
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;
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aFile = setmntent("/proc/mounts", "r");
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if (aFile == NULL) {
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/*proc not mounted*/
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return FUNC_RET_ERROR;
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}
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currentDrive = 0;
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while (NULL != (ent = getmntent(aFile))) {
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if ((strncmp(ent->mnt_type, "ext", 3) == 0
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|| strncmp(ent->mnt_type, "vfat", 4) == 0
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|| strncmp(ent->mnt_type, "ntfs", 4) == 0)
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&& ent->mnt_fsname != NULL
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&& strncmp(ent->mnt_fsname, "/dev/", 5) == 0) {
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if (stat(ent->mnt_fsname, &mount_stat) == 0) {
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drive_found = -1;
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for (i = 0; i < currentDrive; i++) {
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if (statDrives[i] == mount_stat.st_ino) {
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drive_found = i;
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}
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}
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if (drive_found == -1) {
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#ifdef _DEBUG
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printf("mntent: %s %s %d\n", ent->mnt_fsname, ent->mnt_dir,
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mount_stat.st_ino);
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#endif
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strcpy(tmpDrives[currentDrive].device, ent->mnt_fsname);
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statDrives[currentDrive] = mount_stat.st_ino;
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drive_found = currentDrive;
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currentDrive++;
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}
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if (strcmp(ent->mnt_dir, "/") == 0) {
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strcpy(tmpDrives[drive_found].label, "root");
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#ifdef _DEBUG
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printf("drive %s set to preferred\n", ent->mnt_fsname);
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#endif
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tmpDrives[drive_found].preferred = true;
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}
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}
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}
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}
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endmntent(aFile);
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if (diskInfos == NULL) {
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*disk_info_size = currentDrive;
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free(tmpDrives);
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result = FUNC_RET_OK;
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} else if (*disk_info_size >= currentDrive) {
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disk_by_uuid_dir = opendir("/dev/disk/by-uuid");
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if (disk_by_uuid_dir == NULL) {
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#ifdef _DEBUG
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printf("Open /dev/disk/by-uuid fail");
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#endif
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free(statDrives);
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return FUNC_RET_ERROR;
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}
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result = FUNC_RET_OK;
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*disk_info_size = currentDrive;
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while ((dir = readdir(disk_by_uuid_dir)) != NULL) {
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strcpy(cur_dir, "/dev/disk/by-uuid/");
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strncat(cur_dir, dir->d_name, 200);
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if (stat(cur_dir, &sym_stat) == 0) {
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for (i = 0; i < currentDrive; i++) {
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if (sym_stat.st_ino == statDrives[i]) {
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parseUUID(dir->d_name, tmpDrives[i].disk_sn,
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sizeof(tmpDrives[i].disk_sn));
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#ifdef _DEBUG
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VALGRIND_CHECK_VALUE_IS_DEFINED(tmpDrives[i].device);
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printf("uuid %d %s %02x%02x%02x%02x\n", i,
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tmpDrives[i].device,
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tmpDrives[i].disk_sn[0],
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tmpDrives[i].disk_sn[1],
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tmpDrives[i].disk_sn[2],
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tmpDrives[i].disk_sn[3]);
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#endif
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}
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}
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}
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}
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closedir(disk_by_uuid_dir);
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disk_by_label = opendir("/dev/disk/by-label");
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if (disk_by_label != NULL) {
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while ((dir = readdir(disk_by_label)) != NULL) {
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strcpy(cur_dir, "/dev/disk/by-label/");
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strcat(cur_dir, dir->d_name);
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if (stat(cur_dir, &sym_stat) == 0) {
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for (i = 0; i < currentDrive; i++) {
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if (sym_stat.st_ino == statDrives[i]) {
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strncpy(tmpDrives[i].label, dir->d_name, 255);
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printf("label %d %s %s\n", i, tmpDrives[i].label,
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tmpDrives[i].device);
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}
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}
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}
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}
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closedir(disk_by_label);
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}
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} else {
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result = FUNC_RET_BUFFER_TOO_SMALL;
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}
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/*
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FILE *mounts = fopen(_PATH_MOUNTED, "r");
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if (mounts == NULL) {
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return ERROR;
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}
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while (fscanf(mounts, "%64s %64s %64s %1024[^\n]", device, name, type,
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discard) != EOF) {
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if (stat(device, &mount_stat) != 0)
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continue;
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if (filename_stat.st_dev == mount_stat.st_rdev) {
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fprintf(stderr, "device: %s; name: %s; type: %s\n", device, name,
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type);
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}
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}
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*/
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free(statDrives);
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return result;
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}
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void os_initialize() {
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static int initialized = 0;
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if (initialized == 0) {
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initialized = 1;
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ERR_load_ERR_strings();
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ERR_load_crypto_strings();
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OpenSSL_add_all_algorithms();
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}
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}
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static void _getCpuid(unsigned int* p, unsigned int ax) {
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__asm __volatile
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( "movl %%ebx, %%esi\n\t"
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"cpuid\n\t"
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"xchgl %%ebx, %%esi"
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: "=a" (p[0]), "=S" (p[1]),
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"=c" (p[2]), "=d" (p[3])
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: "0" (ax)
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);
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}
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FUNCTION_RETURN getCpuId(unsigned char identifier[6]) {
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unsigned int i;
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unsigned int cpuinfo[4] = { 0, 0, 0, 0 };
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_getCpuid(cpuinfo, 0);
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for (i = 0; i < 3; i++) {
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identifier[i * 2] = cpuinfo[i] & 0xFF;
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identifier[i * 2 + 1] = (cpuinfo[i] & 0xFF00) >> 8;
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}
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return FUNC_RET_OK;
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}
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VIRTUALIZATION getVirtualization() {
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//http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html
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//
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//bool rc = true;
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/*__asm__ (
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"push %edx\n"
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"push %ecx\n"
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"push %ebx\n"
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"mov %eax, 'VMXh'\n"
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"mov %ebx, 0\n" // any value but not the MAGIC VALUE
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"mov %ecx, 10\n"// get VMWare version
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"mov %edx, 'VX'\n"// port number
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"in %eax, dx\n"// read port on return EAX returns the VERSION
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"cmp %ebx, 'VMXh'\n"// is it a reply from VMWare?
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"setz [rc] \n"// set return value
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"pop %ebx \n"
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"pop %ecx \n"
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"pop %edx \n"
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);*/
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return NONE;
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}
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FUNCTION_RETURN getMachineName(unsigned char identifier[6]) {
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static struct utsname u;
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if (uname(&u) < 0) {
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return FUNC_RET_ERROR;
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}
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memcpy(identifier, u.nodename, 6);
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return FUNC_RET_OK;
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}
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FUNCTION_RETURN getOsSpecificIdentifier(unsigned char identifier[6]) {
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char* dbus_id = dbus_get_local_machine_id();
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if (dbus_id == NULL) {
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return FUNC_RET_ERROR;
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}
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memcpy(identifier, dbus_id, 6);
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dbus_free(dbus_id);
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return FUNC_RET_OK;
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}
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