static void test_bug118(void) {
// https://github.com/UpstandingHackers/hammer/issues/118
// Adapted from https://gist.github.com/mrdomino/c6bc91a7cb3b9817edb5
HParseResult* p;
const uint8_t *input = (uint8_t*)"\x69\x5A\x6A\x7A\x8A\x9A";
#define MY_ENDIAN (BIT_BIG_ENDIAN | BYTE_LITTLE_ENDIAN)
H_RULE(nibble, h_with_endianness(MY_ENDIAN, h_bits(4, false)));
H_RULE(sample, h_with_endianness(MY_ENDIAN, h_bits(10, false)));
#undef MY_ENDIAN
H_RULE(samples, h_sequence(h_repeat_n(sample, 3), h_ignore(h_bits(2, false)), NULL));
H_RULE(header_ok, h_sequence(nibble, nibble, NULL));
H_RULE(header_weird, h_sequence(nibble, nibble, nibble, NULL));
H_RULE(parser_ok, h_sequence(header_ok, samples, NULL));
H_RULE(parser_weird, h_sequence(header_weird, samples, NULL));
p = h_parse(parser_weird, input, 6);
g_check_cmp_int32(p->bit_length, ==, 44);
h_parse_result_free(p);
p = h_parse(parser_ok, input, 6);
g_check_cmp_int32(p->bit_length, ==, 40);
h_parse_result_free(p);
}
void dnp3_p_init_transport(void)
{
H_RULE(bit, h_bits(1, false));
H_RULE(byte, h_uint8());
H_RULE(fir, bit);
H_RULE(fin, bit);
H_RULE(seqno, h_bits(6, false));
H_RULE(hdr, h_sequence(fin, fir, seqno, NULL)); // big-endian
H_ARULE(segment, h_sequence(hdr, h_many(byte), NULL));
// XXX is there a minimum number of bytes in the transport payload?
dnp3_p_transport_segment = segment;
}
void dnp3_p_init_binoutcmd(void)
{
H_RULE (bit, h_bits(1, false));
H_RULE (cs, bit);
H_RULE (status, h_bits(7, false));
H_ARULE(notime, h_sequence(status, cs, NULL));
H_ARULE(abstime, h_sequence(status, cs, dnp3_p_dnp3time, NULL));
H_RULE (tcc, h_int_range(h_bits(2, false), 0, 2));
H_ARULE(crob, h_sequence(h_bits(4, false), // op type
bit, // queue flag (obsolete)
bit, // clear flag
tcc,
h_uint8(), // count
h_uint32(), // on-time [ms]
h_uint32(), // off-time [ms]
status, // 7 bits
dnp3_p_reserved(1),
NULL));
H_ARULE(packed, bit);
// group 12 (binary output commands)...
dnp3_p_g12v1_binoutcmd_crob_oblock = dnp3_p_oblock(G_V(BINOUTCMD, CROB), crob);
dnp3_p_g12v2_binoutcmd_pcb_oblock = dnp3_p_single(G_V(BINOUTCMD, PCB), crob);
dnp3_p_g12v3_binoutcmd_pcm_oblock = dnp3_p_oblock_packed(G_V(BINOUTCMD, PCM), packed);
dnp3_p_g12v3_binoutcmd_pcm_rblock = dnp3_p_specific_rblock(G_V(BINOUTCMD, PCM));
dnp3_p_binoutcmd_rblock = dnp3_p_rblock(G(BINOUTCMD),
V(BINOUTCMD, CROB),
V(BINOUTCMD, PCB),
V(BINOUTCMD, PCM), 0);
// group 13 (binary output command events)...
H_RULE(oblock_notime, dnp3_p_oblock(G_V(BINOUTCMDEV, NOTIME), notime));
H_RULE(oblock_abstime, dnp3_p_oblock(G_V(BINOUTCMDEV, ABSTIME), abstime));
dnp3_p_binoutcmdev_rblock = dnp3_p_rblock(G(BINOUTCMDEV),
V(BINOUTCMDEV, NOTIME),
V(BINOUTCMDEV, ABSTIME), 0);
dnp3_p_binoutcmdev_oblock = h_choice(oblock_notime,
oblock_abstime, NULL);
}
void dnp3_p_init_counter(void)
{
H_RULE (bit, h_bits(1,false));
H_RULE (ignore, h_ignore(bit));
H_RULE (reserved, dnp3_p_reserved(1));
H_ARULE(flags, h_sequence(bit, // ONLINE
bit, // RESTART
bit, // COMM_LOST
bit, // REMOTE_FORCED
bit, // LOCAL_FORCED
ignore, // (ROLLOVER - obsolete)
bit, // DISCONTINUITY
reserved,
NULL));
H_RULE (val32, h_uint32());
H_RULE (val16, h_uint16());
H_ARULE(ctr32, val32);
H_ARULE(ctr16, val16);
H_ARULE(ctr32_flag, h_sequence(flags, val32, NULL));
H_ARULE(ctr16_flag, h_sequence(flags, val16, NULL));
H_ARULE(ctr32_flag_t, h_sequence(flags, val32, dnp3_p_dnp3time, NULL));
H_ARULE(ctr16_flag_t, h_sequence(flags, val16, dnp3_p_dnp3time, NULL));
// group 20: counters...
H_RULE(oblock_32bit_flag, dnp3_p_oblock(G_V(CTR, 32BIT), ctr32_flag));
H_RULE(oblock_16bit_flag, dnp3_p_oblock(G_V(CTR, 16BIT), ctr16_flag));
H_RULE(oblock_32bit_noflag, dnp3_p_oblock(G_V(CTR, 32BIT_NOFLAG), ctr32));
H_RULE(oblock_16bit_noflag, dnp3_p_oblock(G_V(CTR, 16BIT_NOFLAG), ctr16));
dnp3_p_ctr_rblock = dnp3_p_rblock(G(CTR), V(CTR, 32BIT),
V(CTR, 16BIT),
V(CTR, 32BIT_NOFLAG),
V(CTR, 32BIT_NOFLAG), 0);
dnp3_p_ctr_fblock = dnp3_p_specific_rblock(G(CTR), DNP3_VARIATION_ANY);
dnp3_p_ctr_oblock = h_choice(oblock_32bit_flag,
oblock_16bit_flag,
oblock_32bit_noflag,
oblock_16bit_noflag,
NULL);
// group 21: frozen counters...
H_RULE(oblock_frz32bit_flag, dnp3_p_oblock(G_V(FROZENCTR, 32BIT), ctr32_flag));
H_RULE(oblock_frz16bit_flag, dnp3_p_oblock(G_V(FROZENCTR, 16BIT), ctr16_flag));
H_RULE(oblock_frz32bit_flag_t, dnp3_p_oblock(G_V(FROZENCTR, 32BIT_TIME), ctr32_flag_t));
H_RULE(oblock_frz16bit_flag_t, dnp3_p_oblock(G_V(FROZENCTR, 16BIT_TIME), ctr16_flag_t));
H_RULE(oblock_frz32bit_noflag, dnp3_p_oblock(G_V(FROZENCTR, 32BIT_NOFLAG), ctr32));
H_RULE(oblock_frz16bit_noflag, dnp3_p_oblock(G_V(FROZENCTR, 16BIT_NOFLAG), ctr16));
dnp3_p_frozenctr_rblock = dnp3_p_rblock(G(FROZENCTR),
V(FROZENCTR, 32BIT),
V(FROZENCTR, 16BIT),
V(FROZENCTR, 32BIT_TIME),
V(FROZENCTR, 16BIT_TIME),
V(FROZENCTR, 32BIT_NOFLAG),
V(FROZENCTR, 32BIT_NOFLAG), 0);
dnp3_p_frozenctr_oblock = h_choice(oblock_frz32bit_flag,
oblock_frz16bit_flag,
oblock_frz32bit_flag_t,
oblock_frz16bit_flag_t,
oblock_frz32bit_noflag,
oblock_frz16bit_noflag,
NULL);
// group 22: counter events...
H_RULE(oblock_ev32bit_flag, dnp3_p_oblock(G_V(CTREV, 32BIT), ctr32_flag));
H_RULE(oblock_ev16bit_flag, dnp3_p_oblock(G_V(CTREV, 16BIT), ctr16_flag));
H_RULE(oblock_ev32bit_flag_t, dnp3_p_oblock(G_V(CTREV, 32BIT_TIME), ctr32_flag_t));
H_RULE(oblock_ev16bit_flag_t, dnp3_p_oblock(G_V(CTREV, 16BIT_TIME), ctr16_flag_t));
dnp3_p_ctrev_rblock = dnp3_p_rblock(G(CTREV), V(CTREV, 32BIT),
V(CTREV, 16BIT),
V(CTREV, 32BIT_TIME),
V(CTREV, 16BIT_TIME), 0);
dnp3_p_ctrev_oblock = h_choice(oblock_ev32bit_flag,
oblock_ev16bit_flag,
oblock_ev32bit_flag_t,
oblock_ev16bit_flag_t,
NULL);
// group 21: frozen counter events...
H_RULE(oblock_frzev32bit_flag, dnp3_p_oblock(G_V(FROZENCTREV, 32BIT), ctr32_flag));
H_RULE(oblock_frzev16bit_flag, dnp3_p_oblock(G_V(FROZENCTREV, 16BIT), ctr16_flag));
H_RULE(oblock_frzev32bit_flag_t, dnp3_p_oblock(G_V(FROZENCTREV, 32BIT_TIME), ctr32_flag_t));
H_RULE(oblock_frzev16bit_flag_t, dnp3_p_oblock(G_V(FROZENCTREV, 16BIT_TIME), ctr16_flag_t));
dnp3_p_frozenctrev_rblock = dnp3_p_rblock(G(FROZENCTREV),
V(FROZENCTREV, 32BIT),
V(FROZENCTREV, 16BIT),
V(FROZENCTREV, 32BIT_TIME),
V(FROZENCTREV, 16BIT_TIME), 0);
dnp3_p_frozenctrev_oblock = h_choice(oblock_frzev32bit_flag,
oblock_frzev16bit_flag,
oblock_frzev32bit_flag_t,
oblock_frzev16bit_flag_t,
NULL);
}
