/usr/share/gtk-doc/html/p11-kit/p11-kit-PIN-Callbacks.html is in libp11-kit-dev 0.23.3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>PIN Callbacks: p11-kit</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
<link rel="home" href="index.html" title="p11-kit">
<link rel="up" href="reference.html" title="API Reference">
<link rel="prev" href="p11-kit-URIs.html" title="URIs">
<link rel="next" href="p11-kit-Utilities.html" title="Utilities">
<meta name="generator" content="GTK-Doc V1.25 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span>
<a href="#p11-kit-PIN-Callbacks.description" class="shortcut">Description</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="reference.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="p11-kit-URIs.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="p11-kit-Utilities.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="p11-kit-PIN-Callbacks"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="p11-kit-PIN-Callbacks.top_of_page"></a>PIN Callbacks</span></h2>
<p>PIN Callbacks — PIN Callbacks</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="p11-kit-PIN-Callbacks.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-new" title="p11_kit_pin_new ()">p11_kit_pin_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-new-for-buffer" title="p11_kit_pin_new_for_buffer ()">p11_kit_pin_new_for_buffer</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-new-for-string" title="p11_kit_pin_new_for_string ()">p11_kit_pin_new_for_string</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const unsigned <span class="returnvalue">char</span> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-get-value" title="p11_kit_pin_get_value ()">p11_kit_pin_get_value</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">size_t</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-get-length" title="p11_kit_pin_get_length ()">p11_kit_pin_get_length</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-ref" title="p11_kit_pin_ref ()">p11_kit_pin_ref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()">p11_kit_pin_unref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()">p11_kit_pin_register_callback</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unregister-callback" title="p11_kit_pin_unregister_callback ()">p11_kit_pin_unregister_callback</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-callback" title="p11_kit_pin_callback ()">*p11_kit_pin_callback</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-request" title="p11_kit_pin_request ()">p11_kit_pin_request</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-destroy-func" title="p11_kit_pin_destroy_func ()">*p11_kit_pin_destroy_func</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
</td>
<td class="function_name">
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-file-callback" title="p11_kit_pin_file_callback ()">p11_kit_pin_file_callback</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="p11-kit-PIN-Callbacks.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="typedef_keyword">typedef</td>
<td class="function_name"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin">P11KitPin</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPinFlags" title="enum P11KitPinFlags">P11KitPinFlags</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="p11-kit-PIN-Callbacks.html#P11-KIT-PIN-FALLBACK:CAPS" title="P11_KIT_PIN_FALLBACK">P11_KIT_PIN_FALLBACK</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="p11-kit-PIN-Callbacks.description"></a><h2>Description</h2>
<p>Applications can register a callback which will be called to provide a
password associated with a given pin source.</p>
<p>PKCS#11 URIs can contain a 'pin-source' attribute. The value of this attribute
is application dependent, but often references a file containing a PIN to
use.</p>
<p>Using these functions, an applications or libraries can register a
callback with <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()"><code class="function">p11_kit_pin_register_callback()</code></a> to be called when a given
'pin-source' attribute value is requested. The application can then prompt
the user or retrieve a PIN for the given context. These registered
callbacks are only relevant and valid within the current process.</p>
<p>A fallback callback can be registered by passing the <a class="link" href="p11-kit-PIN-Callbacks.html#P11-KIT-PIN-FALLBACK:CAPS" title="P11_KIT_PIN_FALLBACK"><code class="literal">P11_KIT_PIN_FALLBACK</code></a>
value to <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()"><code class="function">p11_kit_pin_register_callback()</code></a>. This fallback callback will be
called for every 'pin-source' attribute request for which no callback has been
directly registered.</p>
<p>To request a PIN for a given 'pin-source' attribute, use the
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-request" title="p11_kit_pin_request ()"><code class="function">p11_kit_pin_request()</code></a> function. If this function returns <code class="literal">NULL</code> then either
no callbacks were registered or none of them could handle the request.</p>
<p>If multiple callbacks are registered for the same PIN source, then they are
called in last-registered-first-called order. They are called in turn until
one of them can handle the request. Fallback callbacks are not called if
a callback was registered specifically for a requested 'pin-source' attribute.</p>
<p>PINs themselves are handled inside of P11KitPin structures. These are thread
safe and allow the callback to specify how the PIN is stored in memory
and freed. A callback can use <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-new-for-string" title="p11_kit_pin_new_for_string ()"><code class="function">p11_kit_pin_new_for_string()</code></a> or related
functions to create a PIN to be returned.</p>
<p>For example in order to handle the following PKCS#11 URI with a 'pin-source'
attribute</p>
<code class="code"><div class="literallayout"><p><br>
pkcs11:id=%69%95%3e%5c%f4%bd%ec%91;pin-source=my-application<br>
</p></div></code><p>an application could register a callback like this:</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4
5
6
7
8
9
10</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="gtkdoc kwb">static</span> P11KitPin<span class="gtkdoc opt">*</span>
<span class="function">my_application_pin_callback</span> <span class="gtkdoc opt">(</span><span class="gtkdoc kwb">const char</span> <span class="gtkdoc opt">*</span>pin_source<span class="gtkdoc opt">,</span> P11KitUri <span class="gtkdoc opt">*</span>pin_uri<span class="gtkdoc opt">,</span>
<span class="gtkdoc kwb">const char</span> <span class="gtkdoc opt">*</span>pin_description<span class="gtkdoc opt">,</span> P11KitPinFlags pin_flags<span class="gtkdoc opt">,</span>
<span class="gtkdoc kwb">void</span> <span class="gtkdoc opt">*</span>callback_data<span class="gtkdoc opt">)</span>
<span class="gtkdoc opt">{</span>
<span class="keyword">return</span> <span class="function">p11_kit_pin_new_from_string</span> <span class="gtkdoc opt">(</span><span class="string">"pin-value"</span><span class="gtkdoc opt">);</span>
<span class="gtkdoc opt">}</span>
<span class="function"><a href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback">p11_kit_pin_register_callback</a></span> <span class="gtkdoc opt">(</span><span class="string">"my-application"</span><span class="gtkdoc opt">,</span> my_application_pin_callback<span class="gtkdoc opt">,</span>
NULL<span class="gtkdoc opt">,</span> NULL<span class="gtkdoc opt">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="refsect1">
<a name="p11-kit-PIN-Callbacks.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="p11-kit-pin-new"></a><h3>p11_kit_pin_new ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_new (<em class="parameter"><code>const unsigned <span class="type">char</span> *value</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>);</pre>
<p>Create a new P11KitPin with the given PIN value. This function is
usually used from within registered PIN callbacks.</p>
<p>Exactly <em class="parameter"><code>length</code></em>
bytes from <em class="parameter"><code>value</code></em>
are used. Null terminated strings,
or encodings are not considered. A copy of the <em class="parameter"><code>value</code></em>
will be made.</p>
<div class="refsect3">
<a name="p11-kit-pin-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the value of the PIN</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>the length of <em class="parameter"><code>value</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-new.returns"></a><h4>Returns</h4>
<p> The newly allocated P11KitPin, which should be freed with
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a> when no longer needed.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-new-for-buffer"></a><h3>p11_kit_pin_new_for_buffer ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_new_for_buffer (<em class="parameter"><code>unsigned <span class="type">char</span> *buffer</code></em>,
<em class="parameter"><code><span class="type">size_t</span> length</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-destroy-func" title="p11_kit_pin_destroy_func ()"><span class="type">p11_kit_pin_destroy_func</span></a> destroy</code></em>);</pre>
<p>Create a new P11KitPin which will use <em class="parameter"><code>buffer</code></em>
for the PIN value.
This function is usually used from within registered PIN callbacks.</p>
<p>The buffer will not be copied. String encodings and null characters
are not considered.</p>
<p>When the last reference to this PIN is lost, then the <em class="parameter"><code>destroy</code></em>
callback
function will be called passing <em class="parameter"><code>buffer</code></em>
as an argument. This allows the
caller to use a buffer as a PIN without copying it.</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2
3
4</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="gtkdoc kwb">char</span> <span class="gtkdoc opt">*</span>buffer <span class="gtkdoc opt">=</span> <span class="function">malloc</span> <span class="gtkdoc opt">(</span><span class="number">128</span><span class="gtkdoc opt">);</span>
P11KitPin <span class="gtkdoc opt">*</span>pin<span class="gtkdoc opt">;</span>
<span class="gtkdoc opt">....</span>
pin <span class="gtkdoc opt">=</span> <span class="function"><a href="p11-kit-PIN-Callbacks.html#p11-kit-pin-new-for-buffer">p11_kit_pin_new_for_buffer</a></span> <span class="gtkdoc opt">(</span>buffer<span class="gtkdoc opt">,</span> <span class="number">128</span><span class="gtkdoc opt">,</span> free<span class="gtkdoc opt">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<div class="refsect3">
<a name="p11-kit-pin-new-for-buffer.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>the value of the PIN</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>the length of <em class="parameter"><code>buffer</code></em>
</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p>if not <code class="literal">NULL</code>, then called when PIN is destroyed.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-new-for-buffer.returns"></a><h4>Returns</h4>
<p> The newly allocated P11KitPin, which should be freed with
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a> when no longer needed.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-new-for-string"></a><h3>p11_kit_pin_new_for_string ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_new_for_string (<em class="parameter"><code>const <span class="type">char</span> *value</code></em>);</pre>
<p>Create a new P11KitPin for the given null-terminated string, such as a
password. This function is usually used from within registered
PIN callbacks.</p>
<p>The PIN will consist of the string not including the null terminator.
String encoding is not considered. A copy of the <em class="parameter"><code>value</code></em>
will be made.</p>
<div class="refsect3">
<a name="p11-kit-pin-new-for-string.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>value</p></td>
<td class="parameter_description"><p>the value of the PIN</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-new-for-string.returns"></a><h4>Returns</h4>
<p> The newly allocated P11KitPin, which should be freed with
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a> when no longer needed.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-get-value"></a><h3>p11_kit_pin_get_value ()</h3>
<pre class="programlisting">const unsigned <span class="returnvalue">char</span> *
p11_kit_pin_get_value (<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="type">P11KitPin</span></a> *pin</code></em>,
<em class="parameter"><code><span class="type">size_t</span> *length</code></em>);</pre>
<p>Get the PIN value from a P11KitPin. <em class="parameter"><code>length</code></em>
will be set to the
length of the value.</p>
<p>The value returned is owned by the P11KitPin and should not be modified.
It remains valid as long as a reference to the PIN is held. The PIN value
will not contain an extra null-terminator character.</p>
<div class="refsect3">
<a name="p11-kit-pin-get-value.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin</p></td>
<td class="parameter_description"><p>the P11KitPin</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>length</p></td>
<td class="parameter_description"><p>a location to return the value length</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-get-value.returns"></a><h4>Returns</h4>
<p> the value for the PIN.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-get-length"></a><h3>p11_kit_pin_get_length ()</h3>
<pre class="programlisting"><span class="returnvalue">size_t</span>
p11_kit_pin_get_length (<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="type">P11KitPin</span></a> *pin</code></em>);</pre>
<p>Get the length of the PIN value from a P11KitPin.</p>
<div class="refsect3">
<a name="p11-kit-pin-get-length.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pin</p></td>
<td class="parameter_description"><p>the P11KitPin</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-get-length.returns"></a><h4>Returns</h4>
<p> the length of the PIN value.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-ref"></a><h3>p11_kit_pin_ref ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_ref (<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="type">P11KitPin</span></a> *pin</code></em>);</pre>
<p>Add a reference to a P11KitPin. This should be matched with a later call
to <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a>. As long as at least one reference is held, the PIN
will remain valid and in memory.</p>
<div class="refsect3">
<a name="p11-kit-pin-ref.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pin</p></td>
<td class="parameter_description"><p>the P11KitPin</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-ref.returns"></a><h4>Returns</h4>
<p> the <em class="parameter"><code>pin</code></em>
pointer, for convenience sake.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-unref"></a><h3>p11_kit_pin_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
p11_kit_pin_unref (<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="type">P11KitPin</span></a> *pin</code></em>);</pre>
<p>Remove a reference from a P11KitPin. When all references have been removed
then the PIN will be freed and will no longer be in memory.</p>
<div class="refsect3">
<a name="p11-kit-pin-unref.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>pin</p></td>
<td class="parameter_description"><p>the P11KitPin</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-register-callback"></a><h3>p11_kit_pin_register_callback ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
p11_kit_pin_register_callback (<em class="parameter"><code>const <span class="type">char</span> *pin_source</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-callback" title="p11_kit_pin_callback ()"><span class="type">p11_kit_pin_callback</span></a> callback</code></em>,
<em class="parameter"><code><span class="type">void</span> *callback_data</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-destroy-func" title="p11_kit_pin_destroy_func ()"><span class="type">p11_kit_pin_destroy_func</span></a> callback_destroy</code></em>);</pre>
<p>Register a callback to handle PIN requests for a given 'pin-source' attribute.
If <em class="parameter"><code>pin_source</code></em>
is set to P11_KIT_PIN_FALLBACK then this will be a fallback
callback and will be called for requests for which no other callback has
been specifically registered.</p>
<p>If multiple callbacks are registered for the same <em class="parameter"><code>pin_source</code></em>
value, then
the last registered callback will be the first to be called.</p>
<div class="refsect3">
<a name="p11-kit-pin-register-callback.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin_source</p></td>
<td class="parameter_description"><p>the 'pin-source' attribute this this callback is for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>the callback function</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback_data</p></td>
<td class="parameter_description"><p>data that will be passed to the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback_destroy</p></td>
<td class="parameter_description"><p>a function that will be called with <em class="parameter"><code>callback_data</code></em>
when
the callback is unregistered.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-register-callback.returns"></a><h4>Returns</h4>
<p> Returns negative if registering fails.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-unregister-callback"></a><h3>p11_kit_pin_unregister_callback ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
p11_kit_pin_unregister_callback (<em class="parameter"><code>const <span class="type">char</span> *pin_source</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-callback" title="p11_kit_pin_callback ()"><span class="type">p11_kit_pin_callback</span></a> callback</code></em>,
<em class="parameter"><code><span class="type">void</span> *callback_data</code></em>);</pre>
<p>Unregister a callback that was previously registered with the
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()"><code class="function">p11_kit_pin_register_callback()</code></a> function. If more than one registered
callback matches the given arguments, then only one of those will be
removed.</p>
<div class="refsect3">
<a name="p11-kit-pin-unregister-callback.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin_source</p></td>
<td class="parameter_description"><p>the 'pin-source' attribute the callback was registered for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback</p></td>
<td class="parameter_description"><p>the callback function that was registered</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback_data</p></td>
<td class="parameter_description"><p>data that was registered for the callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-callback"></a><h3>p11_kit_pin_callback ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
<span class="c_punctuation">(</span>*p11_kit_pin_callback<span class="c_punctuation">)</span> (<em class="parameter"><code>const <span class="type">char</span> *pin_source</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-URIs.html#P11KitUri" title="P11KitUri"><span class="type">P11KitUri</span></a> *pin_uri</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *pin_description</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPinFlags" title="enum P11KitPinFlags"><span class="type">P11KitPinFlags</span></a> pin_flags</code></em>,
<em class="parameter"><code><span class="type">void</span> *callback_data</code></em>);</pre>
<p>Represents a PIN callback function.</p>
<p>The various arguments are the same as the ones passed to
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-request" title="p11_kit_pin_request ()"><code class="function">p11_kit_pin_request()</code></a>. The <em class="parameter"><code>callback_data</code></em>
argument was the one passed to
<a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()"><code class="function">p11_kit_pin_register_callback()</code></a> when registering this callback.</p>
<p>The function should return <code class="literal">NULL</code> if it could not provide a PIN, either
because of an error or a user cancellation.</p>
<p>If a PIN is returned, it will be unreferenced by the caller. So it should be
either newly allocated, or referenced before returning.</p>
<div class="refsect3">
<a name="p11-kit-pin-callback.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin_source</p></td>
<td class="parameter_description"><p>a 'pin-source' attribute string</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_uri</p></td>
<td class="parameter_description"><p>a PKCS#11 URI that the PIN is for, or <code class="literal">NULL</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_description</p></td>
<td class="parameter_description"><p>a descrption of what the PIN is for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_flags</p></td>
<td class="parameter_description"><p>flags describing the PIN request</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback_data</p></td>
<td class="parameter_description"><p>data that was provided when registering this callback</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-callback.returns"></a><h4>Returns</h4>
<p> A PIN or <code class="literal">NULL</code></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-request"></a><h3>p11_kit_pin_request ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_request (<em class="parameter"><code>const <span class="type">char</span> *pin_source</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-URIs.html#P11KitUri" title="P11KitUri"><span class="type">P11KitUri</span></a> *pin_uri</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *pin_description</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPinFlags" title="enum P11KitPinFlags"><span class="type">P11KitPinFlags</span></a> pin_flags</code></em>);</pre>
<p>Request a PIN for a given 'pin-source' attribute. The result depends on the
registered callbacks.</p>
<p>If not <code class="literal">NULL</code>, then the <em class="parameter"><code>pin_uri</code></em>
attribute should point to the thing that the
PIN is being requested for. In most use cases this should be a PKCS#11 URI
pointing to a token.</p>
<p>The <em class="parameter"><code>pin_description</code></em>
should always be specified. It is a string describing
what the PIN is for. For example this would be the token label, if the PIN
is for a token.</p>
<p>If more than one callback is registered for the <em class="parameter"><code>pin_source</code></em>
, then the latest
registered one will be called first. If that callback does not return a
PIN, then the next will be called in turn.</p>
<p>If no callback is registered for <em class="parameter"><code>pin_source</code></em>
, then the fallback callbacks will
be invoked in the same way. The fallback callbacks will not be called if any
callback has been registered specifically for <em class="parameter"><code>pin_source</code></em>
.</p>
<p>The PIN returned should be released with <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a>.</p>
<div class="refsect3">
<a name="p11-kit-pin-request.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin_source</p></td>
<td class="parameter_description"><p>the 'pin-source' attribute that is being requested</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_uri</p></td>
<td class="parameter_description"><p>a PKCS#11 URI that the PIN is being requested for, optionally <code class="literal">NULL</code>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_description</p></td>
<td class="parameter_description"><p>a description of what the PIN is for, must not be <code class="literal">NULL</code>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_flags</p></td>
<td class="parameter_description"><p>various flags for this request</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-request.returns"></a><h4>Returns</h4>
<p> the PIN which should be released with <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-unref" title="p11_kit_pin_unref ()"><code class="function">p11_kit_pin_unref()</code></a>, or <code class="literal">NULL</code>
if no callback was registered or could proivde a PIN</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-destroy-func"></a><h3>p11_kit_pin_destroy_func ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*p11_kit_pin_destroy_func<span class="c_punctuation">)</span> (<em class="parameter"><code><span class="type">void</span> *data</code></em>);</pre>
<p>A function called to free or cleanup <em class="parameter"><code>data</code></em>
.</p>
<div class="refsect3">
<a name="p11-kit-pin-destroy-func.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>the data to destroy</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="p11-kit-pin-file-callback"></a><h3>p11_kit_pin_file_callback ()</h3>
<pre class="programlisting"><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPin" title="P11KitPin"><span class="returnvalue">P11KitPin</span></a> *
p11_kit_pin_file_callback (<em class="parameter"><code>const <span class="type">char</span> *pin_source</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-URIs.html#P11KitUri" title="P11KitUri"><span class="type">P11KitUri</span></a> *pin_uri</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *pin_description</code></em>,
<em class="parameter"><code><a class="link" href="p11-kit-PIN-Callbacks.html#P11KitPinFlags" title="enum P11KitPinFlags"><span class="type">P11KitPinFlags</span></a> pin_flags</code></em>,
<em class="parameter"><code><span class="type">void</span> *callback_data</code></em>);</pre>
<p>This is a PIN callback function that looks up the 'pin-source' attribute in
a file with that name. This can be used to enable the normal PKCS#11 URI
behavior described in the RFC.</p>
<p>If <em class="parameter"><code>pin_flags</code></em>
contains the <a class="link" href="p11-kit-PIN-Callbacks.html#P11-KIT-PIN-FLAGS-RETRY:CAPS"><code class="literal">P11_KIT_PIN_FLAGS_RETRY</code></a> flag, then this
callback will always return <code class="literal">NULL</code>. This is to prevent endless loops
where an application is expecting to interact with a prompter, but
instead is interacting with this callback reading a file over and over.</p>
<p>This callback fails on files larger than 4 Kilobytes.</p>
<p>This callback is not registered by default. It may have security
implications depending on the source of the PKCS#11 URI and the PKCS#11
in use. To register it, use code like the following:</p>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1
2</pre></td>
<td class="listing_code"><pre class="programlisting"><span class="function"><a href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback">p11_kit_pin_register_callback</a></span> <span class="gtkdoc opt">(</span>P11_KIT_PIN_FALLBACK<span class="gtkdoc opt">,</span> p11_kit_pin_file_callback<span class="gtkdoc opt">,</span>
NULL<span class="gtkdoc opt">,</span> NULL<span class="gtkdoc opt">);</span></pre></td>
</tr>
</tbody>
</table>
</div>
<div class="refsect3">
<a name="p11-kit-pin-file-callback.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>pin_source</p></td>
<td class="parameter_description"><p>a 'pin-source' attribute string</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_uri</p></td>
<td class="parameter_description"><p>a PKCS#11 URI that the PIN is for, or <code class="literal">NULL</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_description</p></td>
<td class="parameter_description"><p>a descrption of what the PIN is for</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pin_flags</p></td>
<td class="parameter_description"><p>flags describing the PIN request</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>callback_data</p></td>
<td class="parameter_description"><p>unused, should be <code class="literal">NULL</code></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="p11-kit-pin-file-callback.returns"></a><h4>Returns</h4>
<p> a referenced PIN with the file contents, or <code class="literal">NULL</code> if the file
could not be read</p>
</div>
</div>
</div>
<div class="refsect1">
<a name="p11-kit-PIN-Callbacks.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="P11KitPin"></a><h3>P11KitPin</h3>
<pre class="programlisting">typedef struct p11_kit_pin P11KitPin;
</pre>
<p>A structure representing a PKCS#11 PIN. There are no public fields
visible in this structure. Use the various accessor functions.</p>
</div>
<hr>
<div class="refsect2">
<a name="P11KitPinFlags"></a><h3>enum P11KitPinFlags</h3>
<p>Flags that are passed to <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-request" title="p11_kit_pin_request ()"><code class="function">p11_kit_pin_request()</code></a> and registered callbacks.</p>
<div class="refsect3">
<a name="P11KitPinFlags.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-USER-LOGIN:CAPS"></a>P11_KIT_PIN_FLAGS_USER_LOGIN</p></td>
<td class="enum_member_description">
<p>The PIN is for a PKCS#11 user type login.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-SO-LOGIN:CAPS"></a>P11_KIT_PIN_FLAGS_SO_LOGIN</p></td>
<td class="enum_member_description">
<p>The PIN is for a PKCS#11 security officer type login.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-CONTEXT-LOGIN:CAPS"></a>P11_KIT_PIN_FLAGS_CONTEXT_LOGIN</p></td>
<td class="enum_member_description">
<p>The PIN is for a PKCS#11 contect specific type login.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-RETRY:CAPS"></a>P11_KIT_PIN_FLAGS_RETRY</p></td>
<td class="enum_member_description">
<p>The PIN is being requested again, due to an invalid previous PIN.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-MANY-TRIES:CAPS"></a>P11_KIT_PIN_FLAGS_MANY_TRIES</p></td>
<td class="enum_member_description">
<p>The PIN has failed too many times, and few tries are left.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="P11-KIT-PIN-FLAGS-FINAL-TRY:CAPS"></a>P11_KIT_PIN_FLAGS_FINAL_TRY</p></td>
<td class="enum_member_description">
<p>The PIN has failed too many times, and this is the last try.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="P11-KIT-PIN-FALLBACK:CAPS"></a><h3>P11_KIT_PIN_FALLBACK</h3>
<pre class="programlisting">#define P11_KIT_PIN_FALLBACK ""
</pre>
<p>Used with <a class="link" href="p11-kit-PIN-Callbacks.html#p11-kit-pin-register-callback" title="p11_kit_pin_register_callback ()"><code class="function">p11_kit_pin_register_callback()</code></a> to register a fallback callback.
This callback will be called if no other callback is registered for a 'pin-source'.</p>
</div>
</div>
</div>
<div class="footer">
<hr>Generated by GTK-Doc V1.25</div>
</body>
</html>
|