| | |
| | | #define _GNU_SOURCE /* To get defns of NI_MAXSERV and NI_MAXHOST */ |
| | | #include <arpa/inet.h> |
| | | #include <sys/socket.h> |
| | | #include <netdb.h> |
| | | #include <ifaddrs.h> |
| | | #include <stdio.h> |
| | | #include <ctype.h> |
| | | #include <stdlib.h> |
| | | #include <unistd.h> |
| | | #include <linux/if_link.h> |
| | | #include <sys/socket.h> |
| | | #include <netpacket/packet.h> |
| | | |
| | | #include <valgrind/memcheck.h> |
| | | #include <paths.h> |
| | | |
| | |
| | | #include <sys/ioctl.h> |
| | | #include <sys/stat.h> |
| | | #include "../os.h" |
| | | #include "../../base/public-key.h" |
| | | #include "public-key.h" |
| | | #include "../../base/logger.h" |
| | | |
| | | #include <openssl/evp.h> |
| | | #include <openssl/bio.h> |
| | |
| | | #include <dirent.h> |
| | | #include <stdio.h> |
| | | |
| | | static int ifname_position(char *ifnames, char * ifname, int ifnames_max) { |
| | | int i, position; |
| | | position = -1; |
| | | for (i = 0; i < ifnames_max; i++) { |
| | | if (strcmp(ifname, &ifnames[i * NI_MAXHOST]) == 0) { |
| | | position = i; |
| | | break; |
| | | } |
| | | } |
| | | return position; |
| | | |
| | | } |
| | | |
| | | FUNCTION_RETURN getAdapterInfos(AdapterInfo * adapterInfos, |
| | | size_t * adapter_info_size) { |
| | | |
| | | FUNCTION_RETURN f_return = OK; |
| | | struct ifaddrs *ifaddr, *ifa; |
| | | int family, i, s, n, if_name_position; |
| | | unsigned int if_num, if_max; |
| | | char host[NI_MAXHOST]; |
| | | char *ifnames; |
| | | |
| | | if (getifaddrs(&ifaddr) == -1) { |
| | | perror("getifaddrs"); |
| | | return ERROR; |
| | | } |
| | | |
| | | if (adapterInfos != NULL) { |
| | | memset(adapterInfos, 0, (*adapter_info_size) * sizeof(AdapterInfo)); |
| | | } |
| | | |
| | | /* count the maximum number of interfaces */ |
| | | for (ifa = ifaddr, if_max = 0; ifa != NULL; ifa = ifa->ifa_next, n++) { |
| | | if (ifa->ifa_addr == NULL) { |
| | | continue; |
| | | } |
| | | if_max++; |
| | | } |
| | | |
| | | /* allocate space for names */ |
| | | ifnames = (char*) malloc(NI_MAXHOST * if_max); |
| | | memset(ifnames, 0, NI_MAXHOST * if_max); |
| | | /* Walk through linked list, maintaining head pointer so we |
| | | can free list later */ |
| | | for (ifa = ifaddr, n = 0, if_num = 0; ifa != NULL; |
| | | ifa = ifa->ifa_next, n++) { |
| | | if (ifa->ifa_addr == NULL) { |
| | | continue; |
| | | } |
| | | if_name_position = ifname_position(ifnames, ifa->ifa_name, if_num); |
| | | //interface name not seen en advance |
| | | if (if_name_position < 0) { |
| | | strncpy(&ifnames[if_num * NI_MAXHOST], ifa->ifa_name, NI_MAXHOST); |
| | | if (adapterInfos != NULL && if_num < *adapter_info_size) { |
| | | strncpy(adapterInfos[if_num].description, ifa->ifa_name, |
| | | NI_MAXHOST); |
| | | } |
| | | if_name_position = if_num; |
| | | if_num++; |
| | | if (adapterInfos == NULL) { |
| | | continue; |
| | | } |
| | | } |
| | | family = ifa->ifa_addr->sa_family; |
| | | /* Display interface name and family (including symbolic |
| | | form of the latter for the common families) */ |
| | | #ifdef _DEBUG |
| | | printf("%-8s %s (%d)\n", ifa->ifa_name, |
| | | (family == AF_PACKET) ? "AF_PACKET" : |
| | | (family == AF_INET) ? "AF_INET" : |
| | | (family == AF_INET6) ? "AF_INET6" : "???", family); |
| | | #endif |
| | | /* For an AF_INET* interface address, display the address |
| | | * || family == AF_INET6*/ |
| | | if (family == AF_INET) { |
| | | /* |
| | | s = getnameinfo(ifa->ifa_addr, |
| | | (family == AF_INET) ? |
| | | sizeof(struct sockaddr_in) : |
| | | sizeof(struct sockaddr_in6), host, NI_MAXHOST, |
| | | NULL, 0, NI_NUMERICHOST); |
| | | */ |
| | | #ifdef _DEBUG |
| | | s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, |
| | | NI_MAXHOST, |
| | | NULL, 0, NI_NUMERICHOST); |
| | | if (s != 0) { |
| | | printf("getnameinfo() failed: %s\n", gai_strerror(s)); |
| | | } |
| | | printf("\t\taddress: <%s>\n", host); |
| | | #include <sys/utsname.h> |
| | | #ifdef USE_DBUS |
| | | #include <dbus-1.0/dbus/dbus.h> |
| | | #endif |
| | | |
| | | if (adapterInfos != NULL && if_name_position < *adapter_info_size) { |
| | | struct sockaddr_in *s1 = (struct sockaddr_in*) ifa->ifa_addr; |
| | | in_addr_t iaddr = s1->sin_addr.s_addr; |
| | | adapterInfos[if_name_position].ipv4_address[0] = (iaddr |
| | | & 0x000000ff); |
| | | adapterInfos[if_name_position].ipv4_address[1] = (iaddr |
| | | & 0x0000ff00) >> 8; |
| | | adapterInfos[if_name_position].ipv4_address[2] = (iaddr |
| | | & 0x00ff0000) >> 16; |
| | | adapterInfos[if_name_position].ipv4_address[3] = (iaddr |
| | | & 0xff000000) >> 24; |
| | | } |
| | | } else if (family == AF_PACKET && ifa->ifa_data != NULL) { |
| | | struct sockaddr_ll *s1 = (struct sockaddr_ll*) ifa->ifa_addr; |
| | | if (adapterInfos != NULL && if_name_position < *adapter_info_size) { |
| | | for (i = 0; i < 6; i++) { |
| | | adapterInfos[if_name_position].mac_address[i] = |
| | | s1->sll_addr[i]; |
| | | #ifdef _DEBUG |
| | | printf("%02x:", s1->sll_addr[i]); |
| | | #endif |
| | | } |
| | | #ifdef _DEBUG |
| | | printf("\t %s\n", ifa->ifa_name); |
| | | #endif |
| | | |
| | | } |
| | | } |
| | | } |
| | | |
| | | *adapter_info_size = if_num; |
| | | if (adapterInfos == NULL) { |
| | | f_return = OK; |
| | | } else if (*adapter_info_size < if_num) { |
| | | f_return = BUFFER_TOO_SMALL; |
| | | } |
| | | freeifaddrs(ifaddr); |
| | | free(ifnames); |
| | | return f_return; |
| | | } |
| | | /** |
| | | *Usually uuid are hex number separated by "-". this method read up to 8 hex |
| | | *numbers skipping - characters. |
| | |
| | | aFile = setmntent("/proc/mounts", "r"); |
| | | if (aFile == NULL) { |
| | | /*proc not mounted*/ |
| | | return ERROR; |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | |
| | | currentDrive = 0; |
| | |
| | | } |
| | | } |
| | | if (drive_found == -1) { |
| | | #ifdef _DEBUG |
| | | printf("mntent: %s %s %d\n", ent->mnt_fsname, ent->mnt_dir, |
| | | mount_stat.st_ino); |
| | | #endif |
| | | LOG_DEBUG("mntent: %s %s %d\n", ent->mnt_fsname, ent->mnt_dir, |
| | | (unsigned long int)mount_stat.st_ino); |
| | | strcpy(tmpDrives[currentDrive].device, ent->mnt_fsname); |
| | | statDrives[currentDrive] = mount_stat.st_ino; |
| | | drive_found = currentDrive; |
| | |
| | | } |
| | | if (strcmp(ent->mnt_dir, "/") == 0) { |
| | | strcpy(tmpDrives[drive_found].label, "root"); |
| | | #ifdef _DEBUG |
| | | printf("drive %s set to preferred\n", ent->mnt_fsname); |
| | | #endif |
| | | LOG_DEBUG("drive %s set to preferred\n", ent->mnt_fsname); |
| | | tmpDrives[drive_found].preferred = true; |
| | | } |
| | | } |
| | |
| | | if (diskInfos == NULL) { |
| | | *disk_info_size = currentDrive; |
| | | free(tmpDrives); |
| | | result = OK; |
| | | result = FUNC_RET_OK; |
| | | } else if (*disk_info_size >= currentDrive) { |
| | | disk_by_uuid_dir = opendir("/dev/disk/by-uuid"); |
| | | if (disk_by_uuid_dir == NULL) { |
| | | #ifdef _DEBUG |
| | | printf("Open /dev/disk/by-uuid fail"); |
| | | #endif |
| | | LOG_WARN("Open /dev/disk/by-uuid fail"); |
| | | free(statDrives); |
| | | return ERROR; |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | result = OK; |
| | | result = FUNC_RET_OK; |
| | | *disk_info_size = currentDrive; |
| | | while ((dir = readdir(disk_by_uuid_dir)) != NULL) { |
| | | strcpy(cur_dir, "/dev/disk/by-uuid/"); |
| | |
| | | #ifdef _DEBUG |
| | | VALGRIND_CHECK_VALUE_IS_DEFINED(tmpDrives[i].device); |
| | | |
| | | printf("uuid %d %s %02x%02x%02x%02x\n", i, |
| | | LOG_DEBUG("uuid %d %s %02x%02x%02x%02x\n", i, |
| | | tmpDrives[i].device, |
| | | tmpDrives[i].disk_sn[0], |
| | | tmpDrives[i].disk_sn[1], |
| | |
| | | closedir(disk_by_label); |
| | | } |
| | | } else { |
| | | result = BUFFER_TOO_SMALL; |
| | | result = FUNC_RET_BUFFER_TOO_SMALL; |
| | | } |
| | | /* |
| | | FILE *mounts = fopen(_PATH_MOUNTED, "r"); |
| | |
| | | } |
| | | } |
| | | |
| | | static void _getCpuid(unsigned int* p, unsigned int ax) { |
| | | __asm __volatile |
| | | ( "movl %%ebx, %%esi\n\t" |
| | | "cpuid\n\t" |
| | | "xchgl %%ebx, %%esi" |
| | | : "=a" (p[0]), "=S" (p[1]), |
| | | "=c" (p[2]), "=d" (p[3]) |
| | | : "0" (ax) |
| | | ); |
| | | } |
| | | |
| | | FUNCTION_RETURN getCpuId(unsigned char identifier[6]) { |
| | | unsigned int i; |
| | | unsigned int cpuinfo[4] = { 0, 0, 0, 0 }; |
| | | _getCpuid(cpuinfo, 0); |
| | | for (i = 0; i < 3; i++) { |
| | | identifier[i * 2] = cpuinfo[i] & 0xFF; |
| | | identifier[i * 2 + 1] = (cpuinfo[i] & 0xFF00) >> 8; |
| | | } |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | VIRTUALIZATION getVirtualization() { |
| | | //http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html |
| | | // |
| | |
| | | return NONE; |
| | | } |
| | | |
| | | FUNCTION_RETURN getMachineName(unsigned char identifier[6]) { |
| | | static struct utsname u; |
| | | |
| | | if (uname(&u) < 0) { |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | memcpy(identifier, u.nodename, 6); |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | FUNCTION_RETURN getOsSpecificIdentifier(unsigned char identifier[6]) { |
| | | #if USE_DBUS |
| | | char* dbus_id = dbus_get_local_machine_id(); |
| | | if (dbus_id == NULL) { |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | memcpy(identifier, dbus_id, 6); |
| | | dbus_free(dbus_id); |
| | | return FUNC_RET_OK; |
| | | #else |
| | | return FUNC_RET_NOT_AVAIL; |
| | | #endif |
| | | } |
| | | |
| | | FUNCTION_RETURN getModuleName(char buffer[MAX_PATH]) { |
| | | FUNCTION_RETURN result; |
| | | char path[MAX_PATH] = { 0 }; |
| | | char proc_path[MAX_PATH], pidStr[64]; |
| | | pid_t pid = getpid(); |
| | | sprintf(pidStr, "%d", pid); |
| | | strcpy(proc_path, "/proc/"); |
| | | strcat(proc_path, pidStr); |
| | | strcat(proc_path, "/exe"); |
| | | |
| | | int ch = readlink(proc_path, path, MAX_PATH); |
| | | if (ch != -1) { |
| | | path[ch] = '\0'; |
| | | strncpy(buffer, path, ch); |
| | | result = FUNC_RET_OK; |
| | | } else { |
| | | result = FUNC_RET_ERROR; |
| | | } |
| | | return result; |
| | | } |
| | | |
| | | static void free_resources(EVP_PKEY* pkey, EVP_MD_CTX* mdctx) { |
| | | if (pkey) { |
| | | EVP_PKEY_free(pkey); |
| | | } |
| | | if (mdctx) { |
| | | EVP_MD_CTX_destroy(mdctx); |
| | | } |
| | | } |
| | | |
| | | FUNCTION_RETURN verifySignature(const char* stringToVerify, |
| | | const char* signatureB64) { |
| | | EVP_MD_CTX *mdctx = NULL; |
| | | const char *pubKey = PUBLIC_KEY; |
| | | int func_ret = 0; |
| | | |
| | | BIO* bio = BIO_new_mem_buf((void*) (pubKey), strlen(pubKey)); |
| | | RSA *rsa = PEM_read_bio_RSAPublicKey(bio, NULL, NULL, NULL); |
| | | BIO_free(bio); |
| | | if (rsa == NULL) { |
| | | LOG_ERROR("Error reading public key"); |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | EVP_PKEY *pkey = EVP_PKEY_new(); |
| | | EVP_PKEY_assign_RSA(pkey, rsa); |
| | | |
| | | /*BIO* bo = BIO_new(BIO_s_mem()); |
| | | BIO_write(bo, pubKey, strlen(pubKey)); |
| | | RSA *key = 0; |
| | | PEM_read_bio_RSAPublicKey(bo, &key, 0, 0); |
| | | BIO_free(bo);*/ |
| | | |
| | | //RSA* rsa = EVP_PKEY_get1_RSA( key ); |
| | | //RSA * pubKey = d2i_RSA_PUBKEY(NULL, <der encoded byte stream pointer>, <num bytes>); |
| | | unsigned char buffer[512]; |
| | | BIO* b64 = BIO_new(BIO_f_base64()); |
| | | BIO* encoded_signature = BIO_new_mem_buf((void *) signatureB64, |
| | | strlen(signatureB64)); |
| | | BIO* biosig = BIO_push(b64, encoded_signature); |
| | | BIO_set_flags(biosig, BIO_FLAGS_BASE64_NO_NL); //Do not use newlines to flush buffer |
| | | unsigned int len = BIO_read(biosig, (void *) buffer, strlen(signatureB64)); |
| | | //Can test here if len == decodeLen - if not, then return an error |
| | | buffer[len] = 0; |
| | | |
| | | BIO_free_all(biosig); |
| | | |
| | | /* Create the Message Digest Context */ |
| | | if (!(mdctx = EVP_MD_CTX_create())) { |
| | | free_resources(pkey, mdctx); |
| | | LOG_ERROR("Error creating context"); |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | if (1 != EVP_DigestVerifyInit(mdctx, NULL, EVP_sha256(), NULL, pkey)) { |
| | | LOG_ERROR("Error initializing digest"); |
| | | free_resources(pkey, mdctx); |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | int en = strlen(stringToVerify); |
| | | func_ret = EVP_DigestVerifyUpdate(mdctx, stringToVerify, en); |
| | | if (1 != func_ret) { |
| | | LOG_ERROR("Error verifying digest %d", func_ret); |
| | | free_resources(pkey, mdctx); |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | FUNCTION_RETURN result; |
| | | func_ret = EVP_DigestVerifyFinal(mdctx, buffer, len); |
| | | if (1 != func_ret) { |
| | | LOG_ERROR("Error verifying digest %d", func_ret); |
| | | } |
| | | result = (1 == func_ret ? FUNC_RET_OK : FUNC_RET_ERROR); |
| | | |
| | | free_resources(pkey, mdctx); |
| | | return result; |
| | | } |