55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
#include "hmac.h"
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#define DRIVER_NUM_HMAC 0x40003
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#define TOCK_HMAC_CB 0
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#define TOCK_HMAC_KEY_BUF 0
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#define TOCK_HMAC_DATA_BUF 1
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#define TOCK_HMAC_DEST_BUF 2
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#define TOCK_HMAC_SET_ALGORITHM 0
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#define TOCK_HMAC_RUN 1
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#define TOCK_HMAC_UPDATE 2
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#define TOCK_HMAC_FINISH 3
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int hmac_set_callback (subscribe_upcall callback, void* callback_args) {
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subscribe_return_t sval = subscribe(DRIVER_NUM_HMAC, TOCK_HMAC_CB, callback, callback_args);
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return tock_subscribe_return_to_returncode(sval);
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}
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int hmac_set_key_buffer(uint8_t* buffer, uint32_t len) {
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allow_ro_return_t aval = allow_readonly(DRIVER_NUM_HMAC, TOCK_HMAC_KEY_BUF, (void*) buffer, len);
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return tock_allow_ro_return_to_returncode(aval);
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}
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int hmac_set_data_buffer(uint8_t* buffer, uint32_t len) {
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allow_ro_return_t aval = allow_readonly(DRIVER_NUM_HMAC, TOCK_HMAC_DATA_BUF, (void*) buffer, len);
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return tock_allow_ro_return_to_returncode(aval);
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}
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int hmac_set_dest_buffer(uint8_t* buffer, uint32_t len) {
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allow_rw_return_t aval = allow_readwrite(DRIVER_NUM_HMAC, TOCK_HMAC_DEST_BUF, (void*) buffer, len);
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return tock_allow_rw_return_to_returncode(aval);
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}
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int hmac_set_algorithm(uint8_t hash) {
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syscall_return_t cval = command(DRIVER_NUM_HMAC, TOCK_HMAC_SET_ALGORITHM, hash, 0);
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return tock_command_return_novalue_to_returncode(cval);
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}
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int hmac_run(void) {
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syscall_return_t cval = command(DRIVER_NUM_HMAC, TOCK_HMAC_RUN, 0, 0);
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return tock_command_return_novalue_to_returncode(cval);
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}
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int hmac_update(void) {
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syscall_return_t cval = command(DRIVER_NUM_HMAC, TOCK_HMAC_UPDATE, 0, 0);
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return tock_command_return_novalue_to_returncode(cval);
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}
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int hmac_finish(void) {
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syscall_return_t cval = command(DRIVER_NUM_HMAC, TOCK_HMAC_FINISH, 0, 0);
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return tock_command_return_novalue_to_returncode(cval);
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}
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