Arduino/pico-openpgp
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Adding FMD when selecting app by AID.

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Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-05-15 18:50:45 +02:00
parent eb066472b1
commit 0ab5526dac
2 changed files with 18 additions and 1 deletions
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2
pico-ccid

Submodule pico-ccid updated: de04dd6121...efb6c8d8cd

17
src/openpgp/openpgp.c
View File

@@ -320,12 +320,29 @@ int openpgp_unload() {
return CCID_OK;
}
extern char __StackLimit;
int heapLeft() {
char *p = malloc(256); // try to avoid undue fragmentation
int left = &__StackLimit - p;
free(p);
return left;
}
app_t *openpgp_select_aid(app_t *a) {
if (!memcmp(apdu.cmd_apdu_data, openpgp_aid+1, openpgp_aid[0])) {
a->aid = openpgp_aid;
a->process_apdu = openpgp_process_apdu;
a->unload = openpgp_unload;
init_openpgp();
process_fci(file_openpgp);
memcpy(res_APDU+res_APDU_size,"\x64\x06\x53\x04", 4);
res_APDU_size += 4;
int heap_left = heapLeft();
res_APDU[res_APDU_size++] = ((heap_left >> 24) & 0xff);
res_APDU[res_APDU_size++] = ((heap_left >> 16) & 0xff);
res_APDU[res_APDU_size++] = ((heap_left >> 8) & 0xff);
res_APDU[res_APDU_size++] = ((heap_left >> 0) & 0xff);
res_APDU[1] += 8;
return a;
}
return NULL;