| | |
| | | * pc-identifiers.c |
| | | * |
| | | * Created on: Apr 16, 2014 |
| | | * Author: devel |
| | | * |
| | | */ |
| | | |
| | | #include "os/os.h" |
| | | #include "pc-identifiers.h" |
| | | #include <stdlib.h> |
| | | #include <string.h> |
| | | #include <stdbool.h> |
| | | #include <stdio.h> |
| | | #include "base/base64.h" |
| | | #include "base/base.h" |
| | | #ifdef __linux__ |
| | | #include <stdbool.h> |
| | | #include <valgrind/memcheck.h> |
| | | #else |
| | | #ifdef __MINGW32__ |
| | | #include <windows.h> |
| | | #else |
| | | #include <Windows.h> |
| | | #endif |
| | | #endif |
| | | |
| | | static FUNCTION_RETURN generate_disk_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * num_identifiers, bool use_label); |
| | | |
| | | static FUNCTION_RETURN generate_ethernet_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * num_identifiers, int use_mac); |
| | | |
| | | static FUNCTION_RETURN generate_default_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * num_identifiers) { |
| | | size_t adapter_num, disk_num; |
| | | FUNCTION_RETURN result_adapterInfos, result_diskinfos; |
| | | unsigned int required_id_size, i, j, k; |
| | | DiskInfo * diskInfos; |
| | | AdapterInfo *adapterInfos; |
| | | FUNCTION_RETURN result_adapterInfos, result_diskinfos, function_return; |
| | | unsigned int caller_identifiers, i, j, k, array_index; |
| | | DiskInfo * diskInfoPtr; |
| | | OsAdapterInfo *adapterInfoPtr; |
| | | |
| | | result_adapterInfos = getAdapterInfos(NULL, &adapter_num); |
| | | if (result_adapterInfos != OK) { |
| | | //call generate_disk_pc_id; |
| | | return result_adapterInfos; |
| | | } |
| | | result_diskinfos = getDiskInfos(NULL, &disk_num); |
| | | if (result_diskinfos == OK) { |
| | | required_id_size = disk_num * adapter_num; |
| | | } else { |
| | | required_id_size = disk_num; |
| | | } |
| | | int defined_identifiers = *num_identifiers; |
| | | *num_identifiers = required_id_size; |
| | | if (identifiers == NULL) { |
| | | return OK; |
| | | } else if (required_id_size > defined_identifiers) { |
| | | return BUFFER_TOO_SMALL; |
| | | } |
| | | diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo)); |
| | | result_diskinfos = getDiskInfos(diskInfos, &disk_num); |
| | | adapterInfos = (AdapterInfo*) malloc(adapter_num * sizeof(AdapterInfo)); |
| | | result_adapterInfos = getAdapterInfos(adapterInfos, &adapter_num); |
| | | for (i = 0; i < disk_num; i++) { |
| | | for (j = 0; j < adapter_num; j++) { |
| | | for (k = 0; k < 6; k++) |
| | | identifiers[i * adapter_num + j][k] = |
| | | diskInfos[i].disk_sn[k + 2] |
| | | ^ adapterInfos[j].mac_address[k + 2]; |
| | | if (identifiers == NULL || *num_identifiers == 0) { |
| | | result_adapterInfos = getAdapterInfos(NULL, &adapter_num); |
| | | if (result_adapterInfos != FUNC_RET_OK) { |
| | | return generate_disk_pc_id(identifiers, num_identifiers, false); |
| | | } |
| | | } |
| | | result_diskinfos = getDiskInfos(NULL, &disk_num); |
| | | if (result_diskinfos != FUNC_RET_OK) { |
| | | return generate_ethernet_pc_id(identifiers, num_identifiers, true); |
| | | } |
| | | *num_identifiers = disk_num * adapter_num; |
| | | function_return = FUNC_RET_OK; |
| | | } else { |
| | | adapterInfoPtr = (OsAdapterInfo*) malloc( |
| | | (*num_identifiers) * sizeof(OsAdapterInfo)); |
| | | adapter_num = *num_identifiers; |
| | | result_adapterInfos = getAdapterInfos(adapterInfoPtr, &adapter_num); |
| | | if (result_adapterInfos != FUNC_RET_OK |
| | | && result_adapterInfos != FUNC_RET_BUFFER_TOO_SMALL) { |
| | | free(adapterInfoPtr); |
| | | return generate_disk_pc_id(identifiers, num_identifiers, false); |
| | | } |
| | | diskInfoPtr = (DiskInfo*) malloc((*num_identifiers) * sizeof(DiskInfo)); |
| | | disk_num = *num_identifiers; |
| | | result_diskinfos = getDiskInfos(diskInfoPtr, &disk_num); |
| | | if (result_diskinfos != FUNC_RET_OK |
| | | && result_diskinfos != FUNC_RET_BUFFER_TOO_SMALL) { |
| | | free(diskInfoPtr); |
| | | free(adapterInfoPtr); |
| | | return generate_ethernet_pc_id(identifiers, num_identifiers, true); |
| | | } |
| | | function_return = FUNC_RET_OK; |
| | | |
| | | free(diskInfos); |
| | | free(adapterInfos); |
| | | return OK; |
| | | caller_identifiers = *num_identifiers; |
| | | for (i = 0; i < disk_num; i++) { |
| | | for (j = 0; j < adapter_num; j++) { |
| | | array_index = i * adapter_num + j; |
| | | if (array_index >= caller_identifiers) { |
| | | function_return = FUNC_RET_BUFFER_TOO_SMALL; |
| | | //sweet memories... |
| | | goto end; |
| | | } |
| | | for (k = 0; k < 6; k++) |
| | | identifiers[array_index][k] = diskInfoPtr[i].disk_sn[k + 2] |
| | | ^ adapterInfoPtr[j].mac_address[k + 2]; |
| | | } |
| | | } |
| | | end: |
| | | *num_identifiers = cmin(*num_identifiers, adapter_num * disk_num); |
| | | free(diskInfoPtr); |
| | | free(adapterInfoPtr); |
| | | } |
| | | return function_return; |
| | | } |
| | | |
| | | static FUNCTION_RETURN generate_ethernet_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * num_identifiers, bool use_mac) { |
| | | size_t adapters; |
| | | unsigned int * num_identifiers, int use_mac) { |
| | | FUNCTION_RETURN result_adapterInfos; |
| | | unsigned int i, j, k; |
| | | AdapterInfo *adapterInfos; |
| | | unsigned int j, k; |
| | | OsAdapterInfo *adapterInfos; |
| | | size_t defined_adapters, adapters = 0; |
| | | |
| | | result_adapterInfos = getAdapterInfos(NULL, &adapters); |
| | | if (result_adapterInfos != OK) { |
| | | return result_adapterInfos; |
| | | } |
| | | |
| | | int defined_adapters = *num_identifiers; |
| | | *num_identifiers = adapters; |
| | | if (identifiers == NULL) { |
| | | return OK; |
| | | } else if (adapters > defined_adapters) { |
| | | return BUFFER_TOO_SMALL; |
| | | } |
| | | |
| | | adapterInfos = (AdapterInfo*) malloc(adapters * sizeof(AdapterInfo)); |
| | | result_adapterInfos = getAdapterInfos(adapterInfos, &adapters); |
| | | for (j = 0; j < adapters; j++) { |
| | | for (k = 0; k < 6; k++) |
| | | if (use_mac) { |
| | | identifiers[j][k] = adapterInfos[j].mac_address[k + 2]; |
| | | } else { |
| | | //use ip |
| | | if (k < 4) { |
| | | identifiers[j][k] = adapterInfos[j].ipv4_address[k]; |
| | | } else { |
| | | //padding |
| | | identifiers[j][k] = 42; |
| | | } |
| | | if (identifiers == NULL || *num_identifiers == 0) { |
| | | result_adapterInfos = getAdapterInfos(NULL, &adapters); |
| | | if (result_adapterInfos == FUNC_RET_OK |
| | | || result_adapterInfos == FUNC_RET_BUFFER_TOO_SMALL) { |
| | | *num_identifiers = adapters; |
| | | result_adapterInfos = FUNC_RET_OK; |
| | | } |
| | | } else { |
| | | defined_adapters = adapters = *num_identifiers; |
| | | adapterInfos = (OsAdapterInfo*) malloc( |
| | | adapters * sizeof(OsAdapterInfo)); |
| | | result_adapterInfos = getAdapterInfos(adapterInfos, &adapters); |
| | | if (result_adapterInfos == FUNC_RET_BUFFER_TOO_SMALL |
| | | || result_adapterInfos == FUNC_RET_OK) { |
| | | for (j = 0; j < adapters; j++) { |
| | | for (k = 0; k < 6; k++) |
| | | if (use_mac) { |
| | | identifiers[j][k] = adapterInfos[j].mac_address[k + 2]; |
| | | } else { |
| | | //use ip |
| | | if (k < 4) { |
| | | identifiers[j][k] = adapterInfos[j].ipv4_address[k]; |
| | | } else { |
| | | //padding |
| | | identifiers[j][k] = 42; |
| | | } |
| | | } |
| | | } |
| | | result_adapterInfos = ( |
| | | adapters > defined_adapters ? |
| | | FUNC_RET_BUFFER_TOO_SMALL : FUNC_RET_OK); |
| | | } |
| | | free(adapterInfos); |
| | | } |
| | | free(adapterInfos); |
| | | return OK; |
| | | return result_adapterInfos; |
| | | } |
| | | |
| | | static FUNCTION_RETURN generate_disk_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * num_identifiers, bool use_label) { |
| | | size_t disk_num, available_disk_info=0; |
| | | size_t disk_num, available_disk_info = 0; |
| | | FUNCTION_RETURN result_diskinfos; |
| | | unsigned int i, k, j; |
| | | unsigned int i, j; |
| | | int defined_identifiers; |
| | | char firstChar; |
| | | DiskInfo * diskInfos; |
| | | |
| | | result_diskinfos = getDiskInfos(NULL, &disk_num); |
| | | if (result_diskinfos != OK) { |
| | | if (result_diskinfos != FUNC_RET_OK) { |
| | | return result_diskinfos; |
| | | } |
| | | diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo)); |
| | | //memset(diskInfos,0,disk_num * sizeof(DiskInfo)); |
| | | result_diskinfos = getDiskInfos(diskInfos, &disk_num); |
| | | if (result_diskinfos != OK) { |
| | | if (result_diskinfos != FUNC_RET_OK) { |
| | | free(diskInfos); |
| | | return result_diskinfos; |
| | | } |
| | |
| | | available_disk_info += firstChar == 0 ? 0 : 1; |
| | | } |
| | | |
| | | int defined_identifiers = *num_identifiers; |
| | | defined_identifiers = *num_identifiers; |
| | | *num_identifiers = available_disk_info; |
| | | if (identifiers == NULL) { |
| | | free(diskInfos); |
| | | return OK; |
| | | return FUNC_RET_OK; |
| | | } else if (available_disk_info > defined_identifiers) { |
| | | free(diskInfos); |
| | | return BUFFER_TOO_SMALL; |
| | | return FUNC_RET_BUFFER_TOO_SMALL; |
| | | } |
| | | |
| | | j=0; |
| | | j = 0; |
| | | for (i = 0; i < disk_num; i++) { |
| | | if(use_label){ |
| | | if(diskInfos[i].label[0]!=0){ |
| | | memset(identifiers[j],0,sizeof(PcIdentifier)); //!!!!!!! |
| | | strncpy(identifiers[j],diskInfos[i].label,sizeof(PcIdentifier)); |
| | | if (use_label) { |
| | | if (diskInfos[i].label[0] != 0) { |
| | | memset(identifiers[j], 0, sizeof(PcIdentifier)); //!!!!!!! |
| | | strncpy(identifiers[j], diskInfos[i].label, |
| | | sizeof(PcIdentifier)); |
| | | j++; |
| | | } |
| | | }else{ |
| | | if(diskInfos[i].disk_sn[0]!=0){ |
| | | memcpy(identifiers[j],&diskInfos[i].disk_sn[2],sizeof(PcIdentifier)); |
| | | } else { |
| | | if (diskInfos[i].disk_sn[0] != 0) { |
| | | memcpy(identifiers[j], &diskInfos[i].disk_sn[2], |
| | | sizeof(PcIdentifier)); |
| | | j++; |
| | | } |
| | | } |
| | | } |
| | | free(diskInfos); |
| | | return OK; |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | /** |
| | |
| | | * @param |
| | | * @return |
| | | */ |
| | | |
| | | FUNCTION_RETURN generate_pc_id(PcIdentifier * identifiers, |
| | | unsigned int * array_size, IDENTIFICATION_STRATEGY strategy) { |
| | | FUNCTION_RETURN result; |
| | |
| | | result = generate_disk_pc_id(identifiers, array_size, true); |
| | | break; |
| | | default: |
| | | return ERROR; |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | |
| | | if (result == OK && identifiers != NULL) { |
| | | if (result == FUNC_RET_OK && identifiers != NULL) { |
| | | strategy_num = strategy << 5; |
| | | for (i = 0; i < *array_size; i++) { |
| | | //encode strategy in the first three bits of the pc_identifier |
| | |
| | | |
| | | FUNCTION_RETURN encode_pc_id(PcIdentifier identifier1, PcIdentifier identifier2, |
| | | PcSignature pc_identifier_out) { |
| | | //TODO base62 encoding, now uses base64 |
| | | //TODO base62 encoding, now uses base64 |
| | | PcIdentifier concat_identifiers[2]; |
| | | char* b64_data; |
| | | int b64_size = 0; |
| | | size_t concatIdentifiersSize = sizeof(PcIdentifier) * 2; |
| | | //concat_identifiers = (PcIdentifier *) malloc(concatIdentifiersSize); |
| | | //concat_identifiers = (PcIdentifier *) malloc(concatIdentifiersSize); |
| | | memcpy(&concat_identifiers[0], identifier1, sizeof(PcIdentifier)); |
| | | memcpy(&concat_identifiers[1], identifier2, sizeof(PcIdentifier)); |
| | | char* b64_data = base64(concat_identifiers, concatIdentifiersSize, |
| | | &b64_size); |
| | | b64_data = base64(concat_identifiers, concatIdentifiersSize, &b64_size); |
| | | if (b64_size > sizeof(PcSignature)) { |
| | | return BUFFER_TOO_SMALL; |
| | | return FUNC_RET_BUFFER_TOO_SMALL; |
| | | } |
| | | sprintf(pc_identifier_out, "%.4s-%.4s-%.4s-%.4s", &b64_data[0], |
| | | &b64_data[4], &b64_data[8], &b64_data[12]); |
| | | //free(concat_identifiers); |
| | | //free(concat_identifiers); |
| | | free(b64_data); |
| | | return OK; |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | FUNCTION_RETURN parity_check_id(PcSignature pc_identifier) { |
| | | return OK; |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | FUNCTION_RETURN generate_user_pc_signature(PcSignature identifier_out, |
| | |
| | | PcIdentifier* identifiers; |
| | | unsigned int req_buffer_size = 0; |
| | | result = generate_pc_id(NULL, &req_buffer_size, strategy); |
| | | if (result != OK) { |
| | | if (result != FUNC_RET_OK) { |
| | | return result; |
| | | } |
| | | if (req_buffer_size == 0) { |
| | | return ERROR; |
| | | return FUNC_RET_ERROR; |
| | | } |
| | | req_buffer_size = req_buffer_size < 2 ? 2 : req_buffer_size; |
| | | identifiers = (PcIdentifier *) malloc( |
| | | sizeof(PcIdentifier) * req_buffer_size); |
| | | result = generate_pc_id(identifiers, &req_buffer_size, strategy); |
| | | if (result != OK) { |
| | | if (result != FUNC_RET_OK) { |
| | | free(identifiers); |
| | | return result; |
| | | } |
| | | #ifdef __linux__ |
| | | VALGRIND_CHECK_VALUE_IS_DEFINED(identifiers[0]); |
| | | VALGRIND_CHECK_VALUE_IS_DEFINED(identifiers[1]); |
| | | #endif |
| | | result = encode_pc_id(identifiers[0], identifiers[1], identifier_out); |
| | | #ifdef __linux__ |
| | | VALGRIND_CHECK_VALUE_IS_DEFINED(identifier_out); |
| | | #endif |
| | | free(identifiers); |
| | | return result; |
| | | } |
| | |
| | | */ |
| | | static FUNCTION_RETURN decode_pc_id(PcIdentifier identifier1_out, |
| | | PcIdentifier identifier2_out, PcSignature pc_signature_in) { |
| | | //TODO base62 encoding, now uses base64 |
| | | //TODO base62 encoding, now uses base64 |
| | | |
| | | unsigned char * concat_identifiers; |
| | | char base64ids[17]; |
| | |
| | | &base64ids[8], &base64ids[12]); |
| | | concat_identifiers = unbase64(base64ids, 16, &identifiers_size); |
| | | if (identifiers_size > sizeof(PcIdentifier) * 2) { |
| | | return BUFFER_TOO_SMALL; |
| | | return FUNC_RET_BUFFER_TOO_SMALL; |
| | | } |
| | | memcpy(identifier1_out, concat_identifiers, sizeof(PcIdentifier)); |
| | | memcpy(identifier2_out, concat_identifiers + sizeof(PcIdentifier), |
| | | sizeof(PcIdentifier)); |
| | | free(concat_identifiers); |
| | | return OK; |
| | | return FUNC_RET_OK; |
| | | } |
| | | |
| | | static IDENTIFICATION_STRATEGY strategy_from_pc_id(PcIdentifier identifier) { |
| | |
| | | PcIdentifier* calculated_identifiers = NULL; |
| | | unsigned int calc_identifiers_size = 0; |
| | | int i = 0, j = 0; |
| | | //bool found; |
| | | //bool found; |
| | | #ifdef _DEBUG |
| | | printf("Comparing pc identifiers: \n"); |
| | | #endif |
| | | result = decode_pc_id(user_identifiers[0], user_identifiers[1], str_code); |
| | | if (result != OK) { |
| | | if (result != FUNC_RET_OK) { |
| | | return result; |
| | | } |
| | | previous_strategy_id = STRATEGY_UNKNOWN; |
| | | //found = false; |
| | | //found = false; |
| | | for (i = 0; i < 2; i++) { |
| | | current_strategy_id = strategy_from_pc_id(user_identifiers[i]); |
| | | if (current_strategy_id == STRATEGY_UNKNOWN) { |
| | |
| | | for (j = 0; j < calc_identifiers_size; j++) { |
| | | #ifdef _DEBUG |
| | | printf("generated id: %02x%02x%02x%02x%02x%02x index %d, user_supplied id %02x%02x%02x%02x%02x%02x idx: %d\n", |
| | | calculated_identifiers[j][0],calculated_identifiers[j][1],calculated_identifiers[j][2], |
| | | calculated_identifiers[j][3],calculated_identifiers[j][4],calculated_identifiers[j][5],j, |
| | | user_identifiers[i][0],user_identifiers[i][1],user_identifiers[i][2],user_identifiers[i][3],user_identifiers[i][4],user_identifiers[i][5],i); |
| | | calculated_identifiers[j][0], calculated_identifiers[j][1], calculated_identifiers[j][2], |
| | | calculated_identifiers[j][3], calculated_identifiers[j][4], calculated_identifiers[j][5], j, |
| | | user_identifiers[i][0], user_identifiers[i][1], user_identifiers[i][2], user_identifiers[i][3], user_identifiers[i][4], user_identifiers[i][5], i); |
| | | |
| | | #endif |
| | | if (!memcmp(user_identifiers[i], calculated_identifiers[j], |