.net - C#/Native: Reading HDD Serial Using SCSI PassThrough -

-

i have written 3 different methods make use of native createfile , deviceiocontrol calls in order retrieve hdd serial number (not model number). first 1 uses s.m.a.r.t., second 1 uses storage query , third 1 uses scsi passthrough. of code based on content of this thread (with fixes , improvements).

here results using diskid32 utility:

trying read drive ids using physical access admin rights  drive model number________________: [st975xxxxx] drive serial number_______________: [            6ws2xxxx]  trying read drive ids using physical access 0 rights  product id = [st975xxxxx] serial number = [6ws2xxxx]  trying read drive ids using smart  drive model number________________: [st975xxxxx] drive serial number_______________: [            6ws2xxxx]

now, here results using methods:

s.m.a.r.t. = 6ws2xxxx storage query = 6ws2xxxx scsi passthrough = st975xxxxx

well... houston have problem here. first 2 methods correct serial number. last 1 model number bad. now, here code:

--- method ---  internal static string getharddiskserialscsipassthrough(safefilehandle devicehandle) {     intptr bufferpointer = intptr.zero;     string serial = string.empty;     uint32 bytesreturned;      scsipassthroughbuffered bspt = new scsipassthroughbuffered();     bspt.spt.length = (uint16)marshal.sizeof(bspt.spt);     bspt.spt.commanddescriptorblocklength = 16;     bspt.spt.datain = 0x1;     bspt.spt.datatransferlength = 64;     bspt.spt.databufferoffset = new intptr(marshal.sizeof(bspt) - 64);     bspt.spt.timeoutvalue = 60;     bspt.spt.commanddescriptorblock = new byte[] { 0x12, 0x1, 0x80, 0x0, 64, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 };      int32 buffersize = marshal.sizeof(bspt);      try     {         bufferpointer = marshal.allochglobal(buffersize);          marshal.structuretoptr(bspt, bufferpointer, true);          if (deviceiocontrol(devicehandle, 0x4d004, bufferpointer, (uint32)buffersize, bufferpointer, (uint32)buffersize, out bytesreturned, intptr.zero) && (bytesreturned > 0))         {             scsipassthroughbuffered result = (scsipassthroughbuffered)marshal.ptrtostructure(bufferpointer, typeof(scsipassthroughbuffered));             serial = encoding.ascii.getstring(result.buffer, 0, result.buffer.length).replace("\0", string.empty).trim();         }     }         {         marshal.freehglobal(bufferpointer);     }      return serial; }  --- structures ---  [structlayout(layoutkind.sequential)] private struct scsipassthrough {     public uint16 length;     public byte scsistatus;     public byte pathid;     public byte targetid;     public byte logicalunitnumber;     public byte commanddescriptorblocklength;     public byte senseinfolength;     public byte datain;     public uint32 datatransferlength;     public uint32 timeoutvalue;     public intptr databufferoffset;     public uint32 senseinfooffset;     [marshalas(unmanagedtype.byvalarray, sizeconst = 16)]     public byte[] commanddescriptorblock; }  [structlayout(layoutkind.sequential)] private struct scsipassthroughbuffered {     public scsipassthrough spt;     public uint32 filler;     [marshalas(unmanagedtype.byvalarray, sizeconst = 64)]     public byte[] buffer; }

what doing wrong? maybe using wrong cdb?

your code runs ok me, i.e. returns same data other methods described in referenced thread. change had make from:

serial = encoding.ascii.getstring(result.buffer, 0, result.buffer.length)                        .replace("\0", string.empty)                        .trim();

to:

serial = encoding.ascii.getstring(result.buffer, 0, result.buffer.length)                        .substring(intptr.size)                        .replace("\0", string.empty)                        .trim();

Comments

Post a Comment

Popular posts from this blog

java - Jmockit String final length method mocking Issue -

-
using jmockit 1.2 jar, trying mock string's length method getting unexpected invocation exception: failed: test java.lang.illegalstateexception: missing invocation mocked type @ point; please make sure such invocations appear after declaration of suitable mock field or parameter @ stringdemo.testa$1.<init>(testa.java:17) @ stringdemo.testa.test(testa.java:13) i using testng: @test public void test() throws exception { new expectations() { @mocked("length") string astring; { astring.length(); result = 2; } }; system.out.println(a.showa("test")); } } actual class a: public class { public static int showa(string str){ int a= str.length(); return a; } } this wrong way of recording expected results. shouldn't mock , record string's length() method, record showa() instead. here solution @suppresswarnings("unused...
Read more

What is the difference between data design and data model(ERD) -

-
i have google question , find answer in day. know, data design many many table have list column,and mark pk , fk. why er-diagram have find this? data design process of designing database. main output of data design detailed logical data model of database. some people data design includes of needed logical , physical design choices , physical storage parameters needed generate design in data definition language. technically, database analysis, database analysts (dbas) trained do. while person can both data design , database analysis, these 2 different tasks. data design models data. database analysis takes model , applies 1 or more database engines (relational, hierarchical, nosql). a logical data model 1 of main outputs of data design. data model represented entity relationship diagram, or er diagram.
Read more

ios - Can NSManagedObject conform to NSCoding -

-
i need transfer single object across device. right converting nsmanagedobject dictionary , archiving , sending nsdata. upon receiving unarchiving it. transfer nsmanagedobject archiving , unarchiving instead of creating intermediate data object. @interface test : nsmanagedobject<nscoding> @property (nonatomic, retain) nsstring * title; @end @implementation test @dynamic title; - (id)initwithcoder:(nscoder *)coder { self = [super init]; if (self) { self.title = [coder decodeobjectforkey:@"title"]; //<crash } return self; } - (void)encodewithcoder:(nscoder *)coder { [coder encodeobject:self.title forkey:@"title"]; } @end nsdata *archivedobjects = [nskeyedarchiver archiveddatawithrootobject:testobj]; nsdata *objectsdata = archivedobjects; if ([objectsdata length] > 0) { nsarray *objects = [nskeyedunarchiver unarchiveobjectwithdata:objectsdata]; } the problem above code is. crashes @ self.title in initwithcoder sa...
Read more