skarg
169 lines
4.8 KiB
C
169 lines
4.8 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2005 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#include <stdint.h>
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#include "bacenum.h"
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#include "bacdcode.h"
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#include "bacdef.h"
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// encode service
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int reject_encode_apdu(uint8_t * apdu,
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uint8_t invoke_id, uint8_t reject_reason)
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{
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int apdu_len = 0; // total length of the apdu, return value
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if (apdu) {
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apdu[0] = PDU_TYPE_REJECT;
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apdu[1] = invoke_id;
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apdu[2] = reject_reason;
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apdu_len = 3;
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}
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return apdu_len;
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}
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// decode the service request only
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int reject_decode_service_request(uint8_t * apdu,
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unsigned apdu_len, uint8_t * invoke_id, uint8_t * reject_reason)
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{
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int len = 0;
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if (apdu_len) {
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if (invoke_id)
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*invoke_id = apdu[0];
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if (reject_reason)
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*reject_reason = apdu[1];
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}
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return len;
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}
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// decode the whole APDU - mainly used for unit testing
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int reject_decode_apdu(uint8_t * apdu,
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unsigned apdu_len, uint8_t * invoke_id, uint8_t * reject_reason)
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{
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int len = 0;
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if (!apdu)
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return -1;
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// optional checking - most likely was already done prior to this call
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if (apdu_len) {
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if (apdu[0] != PDU_TYPE_REJECT)
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return -1;
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if (apdu_len > 1) {
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len = reject_decode_service_request(&apdu[1],
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apdu_len - 1, invoke_id, reject_reason);
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}
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}
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return len;
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}
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#ifdef TEST
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#include <assert.h>
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#include <string.h>
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#include "ctest.h"
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void testReject(Test * pTest)
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{
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uint8_t apdu[480] = { 0 };
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int len = 0;
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int apdu_len = 0;
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uint8_t invoke_id = 0;
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uint8_t reject_reason = 0;
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uint8_t test_invoke_id = 0;
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uint8_t test_reject_reason = 0;
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len = reject_encode_apdu(&apdu[0], invoke_id, reject_reason);
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ct_test(pTest, len != 0);
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apdu_len = len;
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len = reject_decode_apdu(&apdu[0],
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apdu_len, &test_invoke_id, &test_reject_reason);
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ct_test(pTest, len != -1);
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ct_test(pTest, test_invoke_id == invoke_id);
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ct_test(pTest, test_reject_reason == reject_reason);
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// change type to get negative response
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apdu[0] = PDU_TYPE_ABORT;
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len = reject_decode_apdu(&apdu[0],
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apdu_len, &test_invoke_id, &test_reject_reason);
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ct_test(pTest, len == -1);
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// test NULL APDU
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len = reject_decode_apdu(NULL,
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apdu_len, &test_invoke_id, &test_reject_reason);
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ct_test(pTest, len == -1);
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// force a zero length
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len = reject_decode_apdu(&apdu[0],
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0, &test_invoke_id, &test_reject_reason);
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ct_test(pTest, len == 0);
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// check them all...
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for (invoke_id = 0; invoke_id < 255; invoke_id++) {
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for (reject_reason = 0; reject_reason < 255; reject_reason++) {
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len = reject_encode_apdu(&apdu[0], invoke_id, reject_reason);
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apdu_len = len;
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ct_test(pTest, len != 0);
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len = reject_decode_apdu(&apdu[0],
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apdu_len, &test_invoke_id, &test_reject_reason);
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ct_test(pTest, len != -1);
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ct_test(pTest, test_invoke_id == invoke_id);
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ct_test(pTest, test_reject_reason == reject_reason);
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}
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}
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}
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#ifdef TEST_REJECT
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int main(void)
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{
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Test *pTest;
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bool rc;
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pTest = ct_create("BACnet Reject", NULL);
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/* individual tests */
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rc = ct_addTestFunction(pTest, testReject);
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assert(rc);
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ct_setStream(pTest, stdout);
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ct_run(pTest);
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(void) ct_report(pTest);
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ct_destroy(pTest);
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return 0;
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}
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#endif /* TEST_REJECT */
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#endif /* TEST */
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