From 911e67dc2540e1974ba67faef9dcfd4f27e52ba6 Mon Sep 17 00:00:00 2001
From: open-license-manager <rillf@maildrop.cc>
Date: 周一, 28 7月 2014 05:41:41 +0800
Subject: [PATCH] out licenses
---
src/library/pc-identifiers.c | 143 ++++++++++++++++++++++++++++++++++++++++-------
1 files changed, 120 insertions(+), 23 deletions(-)
diff --git a/src/library/pc-identifiers.c b/src/library/pc-identifiers.c
index e60a5b0..a2f7ad8 100644
--- a/src/library/pc-identifiers.c
+++ b/src/library/pc-identifiers.c
@@ -8,6 +8,7 @@
#include "os/os.h"
#include "pc-identifiers.h"
#include <stdlib.h>
+#include <string.h>
#include <stdbool.h>
#include "base/base64.h"
@@ -30,11 +31,11 @@
} else {
required_id_size = disk_num;
}
+ int defined_identifiers = *num_identifiers;
+ *num_identifiers = required_id_size;
if (identifiers == NULL) {
- *num_identifiers = required_id_size;
return OK;
- } else if (*num_identifiers < required_id_size) {
- *num_identifiers = required_id_size;
+ } else if (required_id_size > defined_identifiers) {
return BUFFER_TOO_SMALL;
}
diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo));
@@ -42,7 +43,7 @@
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; 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]
@@ -66,13 +67,15 @@
if (result_adapterInfos != OK) {
return result_adapterInfos;
}
+
+ int defined_adapters = *num_identifiers;
+ *num_identifiers = adapters;
if (identifiers == NULL) {
- *num_identifiers = adapters;
return OK;
- } else if (*num_identifiers < adapters) {
- *num_identifiers = adapters;
+ } 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; i++) {
@@ -97,20 +100,22 @@
unsigned int * num_identifiers, bool use_label) {
size_t disk_num;
FUNCTION_RETURN result_diskinfos;
- unsigned int required_id_size, i, k;
+ unsigned int i, k;
DiskInfo * diskInfos;
result_diskinfos = getDiskInfos(NULL, &disk_num);
if (result_diskinfos != OK) {
return result_diskinfos;
}
+
+ int defined_identifiers = *num_identifiers;
+ *num_identifiers = disk_num;
if (identifiers == NULL) {
- *num_identifiers = disk_num;
return OK;
- } else if (*num_identifiers < disk_num) {
- *num_identifiers = disk_num;
+ } else if (disk_num > defined_identifiers) {
return BUFFER_TOO_SMALL;
}
+
diskInfos = (DiskInfo*) malloc(disk_num * sizeof(DiskInfo));
result_diskinfos = getDiskInfos(diskInfos, &disk_num);
@@ -134,6 +139,9 @@
* for instance a machine with more than one disk and one network interface has
* usually multiple identifiers.
*
+ * First 4 bit of each pc identifier are reserved 3 for the type of strategy
+ * used in calculation and 1 for parity checks (not implemented here)
+ *
* @param identifiers
* @param array_size
* @param
@@ -142,7 +150,8 @@
FUNCTION_RETURN generate_pc_id(PcIdentifier * identifiers,
unsigned int * array_size, IDENTIFICATION_STRATEGY strategy) {
FUNCTION_RETURN result;
- unsigned int i;
+ unsigned int i, j;
+ const unsigned int original_array_size = *array_size;
unsigned char strategy_num;
switch (strategy) {
case DEFAULT:
@@ -168,19 +177,90 @@
strategy_num = strategy << 5;
for (i = 0; i < *array_size; i++) {
//encode strategy in the first three bits of the pc_identifier
- identifiers[i][0] = (identifiers[i][0] & 31) | strategy_num;
+ identifiers[i][0] = (identifiers[i][0] & 15) | strategy_num;
+ }
+ //fill array if larger
+ for (i = *array_size; i < original_array_size; i++) {
+ identifiers[i][0] = STRATEGY_UNKNOWN;
+ for (j = 1; j < sizeof(PcIdentifier); j++) {
+ identifiers[i][j] = 42; //padding
+ }
}
}
return result;
}
-FUNCTION_RETURN encode_pc_id(PcIdentifier identifier1, PcIdentifier identifier2,
- UserPcIdentifier* pc_identifier_out) {
+char *MakeCRC(char *BitString) {
+ static char Res[3]; // CRC Result
+ char CRC[2];
+ int i;
+ char DoInvert;
+ for (i = 0; i < 2; ++i)
+ CRC[i] = 0; // Init before calculation
+
+ for (i = 0; i < strlen(BitString); ++i) {
+ DoInvert = ('1' == BitString[i]) ^ CRC[1]; // XOR required?
+
+ CRC[1] = CRC[0];
+ CRC[0] = DoInvert;
+ }
+
+ for (i = 0; i < 2; ++i)
+ Res[1 - i] = CRC[i] ? '1' : '0'; // Convert binary to ASCII
+ Res[2] = 0; // Set string terminator
+
+ return (Res);
}
-FUNCTION_RETURN parity_check_id(UserPcIdentifier pc_identifier) {
+FUNCTION_RETURN encode_pc_id(PcIdentifier identifier1, PcIdentifier identifier2,
+ PcSignature pc_identifier_out) {
+ //TODO base62 encoding, now uses base64
+ PcIdentifier concat_identifiers[2];
+ int b64_size = 0;
+ size_t concatIdentifiersSize = sizeof(PcIdentifier) * 2;
+ //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);
+ if (b64_size > sizeof(PcSignature)) {
+ return 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(b64_data);
+ return OK;
+}
+FUNCTION_RETURN parity_check_id(PcSignature pc_identifier) {
+ return OK;
+}
+
+FUNCTION_RETURN generate_user_pc_signature(PcSignature identifier_out,
+ IDENTIFICATION_STRATEGY strategy) {
+ FUNCTION_RETURN result;
+ PcIdentifier* identifiers;
+ unsigned int req_buffer_size = 0;
+ result = generate_pc_id(NULL, &req_buffer_size, strategy);
+ if (result != OK) {
+ return result;
+ }
+ if (req_buffer_size == 0) {
+ return 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) {
+ free(identifiers);
+ return result;
+ }
+ result = encode_pc_id(identifiers[0], identifiers[1], identifier_out);
+ free(identifiers);
+ return result;
}
/**
@@ -190,30 +270,47 @@
* @param str_code: the code in the string format XXXX-XXXX-XXXX-XXXX
* @return
*/
-static FUNCTION_RETURN decode_pc_id(PcIdentifier* identifier1_out,
- PcIdentifier* identifier2_out, UserPcIdentifier str_code) {
+static FUNCTION_RETURN decode_pc_id(PcIdentifier identifier1_out,
+ PcIdentifier identifier2_out, PcSignature pc_signature_in) {
+ //TODO base62 encoding, now uses base64
+ unsigned char * concat_identifiers;
+ char base64ids[17];
+ int identifiers_size;
+
+ sscanf(pc_signature_in, "%.4s-%.4s-%.4s-%.4s", &base64ids[0], &base64ids[4],
+ &base64ids[8], &base64ids[12]);
+ concat_identifiers = unbase64(base64ids, 16,
+ &identifiers_size);
+ if (identifiers_size > sizeof(PcIdentifier) * 2) {
+ return BUFFER_TOO_SMALL;
+ }
+ memcpy(identifier1_out, concat_identifiers, sizeof(PcIdentifier));
+ memcpy(identifier2_out, concat_identifiers + sizeof(PcIdentifier),
+ sizeof(PcIdentifier));
+ free(concat_identifiers);
+ return OK;
}
static IDENTIFICATION_STRATEGY strategy_from_pc_id(PcIdentifier identifier) {
return (IDENTIFICATION_STRATEGY) identifier[0] >> 5;
}
-EVENT_TYPE validate_user_pc_identifier(UserPcIdentifier str_code) {
+EVENT_TYPE validate_pc_signature(PcSignature str_code) {
PcIdentifier user_identifiers[2];
FUNCTION_RETURN result;
IDENTIFICATION_STRATEGY previous_strategy_id, current_strategy_id;
PcIdentifier* calculated_identifiers;
- size_t calc_identifiers_size;
+ unsigned int calc_identifiers_size;
int i, j;
- bool found;
+ //bool found;
- result = decode_pc_id(&user_identifiers[0], &user_identifiers[1], str_code);
+ result = decode_pc_id(user_identifiers[0], user_identifiers[1], str_code);
if (result != 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) {
--
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