Merge remote-tracking branch 'qemu/master'
[qemu/ar7.git] / libcacard / vcard.c
blob1a87208f3de6fe72496b3a750d40aa63d3b3f519
1 /*
2 * implement the Java card standard.
4 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
5 * See the COPYING.LIB file in the top-level directory.
6 */
8 #include "glib-compat.h"
10 #include <string.h>
12 #include "vcard.h"
13 #include "vcard_emul.h"
14 #include "card_7816t.h"
16 struct VCardAppletStruct {
17 VCardApplet *next;
18 VCardProcessAPDU process_apdu;
19 VCardResetApplet reset_applet;
20 unsigned char *aid;
21 int aid_len;
22 void *applet_private;
23 VCardAppletPrivateFree applet_private_free;
26 struct VCardStruct {
27 int reference_count;
28 VCardApplet *applet_list;
29 VCardApplet *current_applet[MAX_CHANNEL];
30 VCardBufferResponse *vcard_buffer_response;
31 VCardType type;
32 VCardEmul *vcard_private;
33 VCardEmulFree vcard_private_free;
34 VCardGetAtr vcard_get_atr;
37 VCardBufferResponse *
38 vcard_buffer_response_new(unsigned char *buffer, int size)
40 VCardBufferResponse *new_buffer;
42 new_buffer = g_new(VCardBufferResponse, 1);
43 new_buffer->buffer = (unsigned char *)g_memdup(buffer, size);
44 new_buffer->buffer_len = size;
45 new_buffer->current = new_buffer->buffer;
46 new_buffer->len = size;
47 return new_buffer;
50 void
51 vcard_buffer_response_delete(VCardBufferResponse *buffer_response)
53 if (buffer_response == NULL) {
54 return;
56 g_free(buffer_response->buffer);
57 g_free(buffer_response);
62 * clean up state after a reset
64 void
65 vcard_reset(VCard *card, VCardPower power)
67 int i;
68 VCardApplet *applet = NULL;
70 if (card->type == VCARD_DIRECT) {
71 /* select the last applet */
72 VCardApplet *current_applet = NULL;
73 for (current_applet = card->applet_list; current_applet;
74 current_applet = current_applet->next) {
75 applet = current_applet;
78 for (i = 0; i < MAX_CHANNEL; i++) {
79 card->current_applet[i] = applet;
81 if (card->vcard_buffer_response) {
82 vcard_buffer_response_delete(card->vcard_buffer_response);
83 card->vcard_buffer_response = NULL;
85 vcard_emul_reset(card, power);
86 if (applet) {
87 applet->reset_applet(card, 0);
91 /* applet utilities */
94 * applet utilities
96 /* constructor */
97 VCardApplet *
98 vcard_new_applet(VCardProcessAPDU applet_process_function,
99 VCardResetApplet applet_reset_function,
100 unsigned char *aid, int aid_len)
102 VCardApplet *applet;
104 applet = g_new0(VCardApplet, 1);
105 applet->process_apdu = applet_process_function;
106 applet->reset_applet = applet_reset_function;
108 applet->aid = g_memdup(aid, aid_len);
109 applet->aid_len = aid_len;
110 return applet;
113 /* destructor */
114 void
115 vcard_delete_applet(VCardApplet *applet)
117 if (applet == NULL) {
118 return;
120 if (applet->applet_private_free) {
121 applet->applet_private_free(applet->applet_private);
123 g_free(applet->aid);
124 g_free(applet);
127 /* accessor */
128 void
129 vcard_set_applet_private(VCardApplet *applet, VCardAppletPrivate *private,
130 VCardAppletPrivateFree private_free)
132 if (applet->applet_private_free) {
133 applet->applet_private_free(applet->applet_private);
135 applet->applet_private = private;
136 applet->applet_private_free = private_free;
139 VCard *
140 vcard_new(VCardEmul *private, VCardEmulFree private_free)
142 VCard *new_card;
144 new_card = g_new0(VCard, 1);
145 new_card->type = VCARD_VM;
146 new_card->vcard_private = private;
147 new_card->vcard_private_free = private_free;
148 new_card->reference_count = 1;
149 return new_card;
152 VCard *
153 vcard_reference(VCard *vcard)
155 if (vcard == NULL) {
156 return NULL;
158 vcard->reference_count++;
159 return vcard;
162 void
163 vcard_free(VCard *vcard)
165 VCardApplet *current_applet;
166 VCardApplet *next_applet;
168 if (vcard == NULL) {
169 return;
171 vcard->reference_count--;
172 if (vcard->reference_count != 0) {
173 return;
175 if (vcard->vcard_private_free) {
176 (*vcard->vcard_private_free)(vcard->vcard_private);
178 for (current_applet = vcard->applet_list; current_applet;
179 current_applet = next_applet) {
180 next_applet = current_applet->next;
181 vcard_delete_applet(current_applet);
183 vcard_buffer_response_delete(vcard->vcard_buffer_response);
184 g_free(vcard);
187 void
188 vcard_get_atr(VCard *vcard, unsigned char *atr, int *atr_len)
190 if (vcard->vcard_get_atr) {
191 (*vcard->vcard_get_atr)(vcard, atr, atr_len);
192 return;
194 vcard_emul_get_atr(vcard, atr, atr_len);
197 void
198 vcard_set_atr_func(VCard *card, VCardGetAtr vcard_get_atr)
200 card->vcard_get_atr = vcard_get_atr;
204 VCardStatus
205 vcard_add_applet(VCard *card, VCardApplet *applet)
207 applet->next = card->applet_list;
208 card->applet_list = applet;
209 /* if our card-type is direct, always call the applet */
210 if (card->type == VCARD_DIRECT) {
211 int i;
213 for (i = 0; i < MAX_CHANNEL; i++) {
214 card->current_applet[i] = applet;
217 return VCARD_DONE;
221 * manage applets
223 VCardApplet *
224 vcard_find_applet(VCard *card, unsigned char *aid, int aid_len)
226 VCardApplet *current_applet;
228 for (current_applet = card->applet_list; current_applet;
229 current_applet = current_applet->next) {
230 if (current_applet->aid_len != aid_len) {
231 continue;
233 if (memcmp(current_applet->aid, aid, aid_len) == 0) {
234 break;
237 return current_applet;
240 unsigned char *
241 vcard_applet_get_aid(VCardApplet *applet, int *aid_len)
243 if (applet == NULL) {
244 return NULL;
246 *aid_len = applet->aid_len;
247 return applet->aid;
251 void
252 vcard_select_applet(VCard *card, int channel, VCardApplet *applet)
254 assert(channel < MAX_CHANNEL);
256 /* If using an emulated card, make sure to log out of any already logged in
257 * session. */
258 vcard_emul_logout(card);
260 card->current_applet[channel] = applet;
261 /* reset the applet */
262 if (applet && applet->reset_applet) {
263 applet->reset_applet(card, channel);
267 VCardAppletPrivate *
268 vcard_get_current_applet_private(VCard *card, int channel)
270 VCardApplet *applet = card->current_applet[channel];
272 if (applet == NULL) {
273 return NULL;
275 return applet->applet_private;
278 VCardStatus
279 vcard_process_applet_apdu(VCard *card, VCardAPDU *apdu,
280 VCardResponse **response)
282 if (card->current_applet[apdu->a_channel]) {
283 return card->current_applet[apdu->a_channel]->process_apdu(
284 card, apdu, response);
286 return VCARD_NEXT;
290 * Accessor functions
292 /* accessor functions for the response buffer */
293 VCardBufferResponse *
294 vcard_get_buffer_response(VCard *card)
296 return card->vcard_buffer_response;
299 void
300 vcard_set_buffer_response(VCard *card, VCardBufferResponse *buffer)
302 card->vcard_buffer_response = buffer;
306 /* accessor functions for the type */
307 VCardType
308 vcard_get_type(VCard *card)
310 return card->type;
313 void
314 vcard_set_type(VCard *card, VCardType type)
316 card->type = type;
319 /* accessor for private data */
320 VCardEmul *
321 vcard_get_private(VCard *vcard)
323 return vcard->vcard_private;