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command header via array

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This commit is contained in:
merlokk 2021-07-21 18:10:19 +03:00
commit 34a5d15bfc
2 changed files with 20 additions and 5 deletions
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20
client/src/mifare/desfiresecurechan.c
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@ -52,6 +52,7 @@ AllowedChannelModesS AllowedChannelModes[] = {
{MFDES_GET_UID, DACd40, DCCNative, DCMEncrypted},
{MFDES_CHANGE_KEY_SETTINGS, DACd40, DCCNative, DCMEncrypted},
{MFDES_CHANGE_FILE_SETTINGS, DACd40, DCCNative, DCMEncrypted},
{MFDES_READ_DATA, DACd40, DCCNative, DCMEncrypted},
{MFDES_WRITE_DATA, DACd40, DCCNative, DCMEncrypted},
@ -73,17 +74,26 @@ AllowedChannelModesS AllowedChannelModes[] = {
{MFDES_GET_UID, DACEV1, DCCNative, DCMEncrypted},
{MFDES_CHANGE_KEY_SETTINGS, DACEV1, DCCNative, DCMEncrypted},
{MFDES_CHANGE_FILE_SETTINGS, DACEV1, DCCNative, DCMEncrypted},
{MFDES_CHANGE_KEY, DACEV1, DCCNative, DCMEncryptedPlain},
{MFDES_CHANGE_KEY_EV2, DACEV1, DCCNative, DCMEncryptedPlain},
};
static uint8_t DesfireGetCmdHeaderLen(uint8_t cmd) {
if (cmd == MFDES_CHANGE_KEY || cmd == MFDES_CHANGE_CONFIGURATION)
return 1;
#define CMD_HEADER_LEN_ALL 0xffff
CmdHeaderLengthsS CmdHeaderLengths[] = {
{MFDES_CREATE_APPLICATION, CMD_HEADER_LEN_ALL},
{MFDES_DELETE_APPLICATION, CMD_HEADER_LEN_ALL},
{MFDES_CHANGE_KEY, 1},
{MFDES_CHANGE_KEY_EV2, 2},
{MFDES_CHANGE_CONFIGURATION, 1},
{MFDES_CHANGE_FILE_SETTINGS, 1},
};
if (cmd == MFDES_CHANGE_KEY_EV2)
return 2;
static uint8_t DesfireGetCmdHeaderLen(uint8_t cmd) {
for (int i = 0; i < ARRAY_LENGTH(CmdHeaderLengths); i++)
if (CmdHeaderLengths[i].cmd == cmd)
return CmdHeaderLengths[i].len;
return 0;
}

5
client/src/mifare/desfiresecurechan.h
View file

@ -26,6 +26,11 @@ typedef struct {
DesfireCommunicationMode commMode;
} AllowedChannelModesS;
typedef struct {
uint8_t cmd;
uint32_t len;
} CmdHeaderLengthsS;
void DesfireSecureChannelEncode(DesfireContext *ctx, uint8_t cmd, uint8_t *srcdata, size_t srcdatalen, uint8_t *dstdata, size_t *dstdatalen);
void DesfireSecureChannelDecode(DesfireContext *ctx, uint8_t *srcdata, size_t srcdatalen, uint8_t respcode, uint8_t *dstdata, size_t *dstdatalen);