June 2009 - SmartcardServices-Dev - lists.macosforge.org

Re: [SmartcardServices-Dev] Documentation section is still empty, ; -(...
by Shawn A. Geddis 18 Jun '09

18 Jun '09

On Apr 20, 2009, at 2:54 PM, Paul Kwan wrote: > Hi, > > When can we expect to have document links shown up in the > Documentation Section? Thanks. > > PSK Paul, That is indeed a task on my plate that is late in coming... Will shoot for *beginning* to post some of this by the end of the week. Will that Work ? -Shawn __________________________________________________ Shawn Geddis geddis(a)mac.com Security Consulting Engineer MacOSForge Project Lead: Smart Card Services Web: http://smartcardservices.macosforge.org/ Lists: http://lists.macosforge.org/mailman/listinfo __________________________________________________

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Trouble w/ pcscd and MSC
by Johnny Alaska 05 Jun '09

05 Jun '09

I am trying to develop a mac os X application (in cocoa) that uses the pcscd to access a couple of CCID compliant devices. The long term goal is to use these devices to recognize which user is interacting w/ the program. At the moment I am just getting started and trying to figure out how to use the pcscd. To get started I wrote the following routine to list the smart card devices that are attached to my mac... - (void)ListSmartCardDevices { MSCLPTokenInfo tokenList; MSC_RV rv; MSCULong32 listSize = 0; rv = MSCListTokens( MSC_LIST_KNOWN, NULL, &listSize ); if (rv != MSC_SUCCESS) { char *err_str = pcsc_stringify_error(rv); NSLog(@"MSCListTokens failed for reason %s", err_str); return; } if (listSize == 0) { NSLog(@"MSCListTokens found no smart cards"); return; } tokenList = (MSCLPTokenInfo)malloc(sizeof(MSCTokenInfo)*listSize); rv = MSCListTokens( MSC_LIST_KNOWN, tokenList, &listSize ); if (rv != MSC_SUCCESS) { char *err_str = pcsc_stringify_error(rv); NSLog(@"MSCListTokens failed for reason %s", err_str); return; } for (int i = 0; i < listSize; i++) { printf("Token name : %s\n", tokenList[i].tokenName); printf("Slot name : %s\n", tokenList[i].slotName); } } If I run my program (which includes this routine) w/ no smartcards plugged in I get the following (predictable) output. [Session started at 2009-06-02 15:37:14 -0700.] *2009-06-02 15:37:15.155 POS[59501:10b] MSCListTokens found no smart cards* If I then plug in the ACR122 device from ACS system and rerun my program I get the following error [Session started at 2009-06-02 15:38:18 -0700.] *2009-06-02 15:38:19.470 POS[59511:10b] MSCListTokens failed for reason Unknown PCSC error: 40019 [0x00009C53]* I get a similar error if I plug in the SCL010 card reader from SCM microsystems. Can anyone suggest any debugging next steps? Cheers, J

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SCardListReaders() returns 1 reader but empty reader string?
by Johnny Alaska 04 Jun '09

04 Jun '09

I am trying to access an NFC reader programatically from either linux or os X, using either the ACR122 or the ACS SCL010 readers. Unfortunately the musclecard library does not appear to work for either these devices/platforms so I am trying to access these devices directly using PC/SC calls. At the moment I am running into an odd problem where SCardListReaders() returns the correct number of readers attached to the system but no reader string. The pertinent piece of my program at the moment resembles this... - (void)findPCSCDevices { NSLog(@"Find PCSC Devices"); // Get a connection to the pcsc daemon. MSCLong32 rv; SCARDCONTEXT localHContext = 0; rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, 0, 0, &localHContext); if (rv != SCARD_S_SUCCESS) { NSLog(@"SCard establish connection failed w/ error %s", pcsc_stringify_error(rv)); return; } // Get the reader list size. MSCULong32 readerLength = 0; rv = SCardListReaders(localHContext, NULL, NULL, &readerLength); if (rv != SCARD_S_SUCCESS) { NSLog(@"SCard get readers failed w/ error %s", pcsc_stringify_error(rv)); return; } else { NSLog(@"SCard get readers found %d readers", readerLength); } // Fetch a full list of attached readers. char *readerList = (char *) malloc(sizeof(char) * readerLength); assert(readerList); rv = SCardListReaders(localHContext, NULL, readerList, &readerLength); NSLog(@"%d readers - readerlist %s", readerLength, readerList); <snip> } This function prints the following when run. [Session started at 2009-06-04 14:49:18 -0700.] *2009-06-04 14:49:18.691 POS[11034:10b] Find PCSC Devices* *2009-06-04 14:49:18.693 POS[11034:10b] SCard get readers found 1 readers* *2009-06-04 14:49:18.693 POS[11034:10b] 1 readers - readerlist * Shouldn't SCardListReaders() return a valid reader string or an error? Also is it possible for me to look up the tokeninfo for the particular devices I am trying to use and use this info to explicitly connect to them instead of reading and parsing the reader info in this fashion? Thanks for the help, J

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