/* Copyright (c) 2017 - 2020 LiteSpeed Technologies Inc. See LICENSE. */ #include #include #include #include #ifndef WIN32 #include #endif #include #include "lsquic.h" #include "lsquic_types.h" #include "lsquic_parse.h" #include "lsquic_packet_common.h" #include "lsquic_packet_in.h" struct test { const char *name; int lineno; const struct parse_funcs * pf; const unsigned char buf[0x100]; /* Large enough for our needs */ size_t buf_sz; /* # of stream frame bytes in `buf' */ size_t rem_packet_sz; /* # of bytes remaining in the packet, * starting at the beginning of the * stream frame. */ stream_frame_t frame; /* Expected values */ int should_succeed; }; static const struct test tests[] = { /* * Big-endian tests */ { "Balls to the wall: every possible bit is set", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x40 | 0x20 | 0x1C | 0x3, 0x00, 0x00, 0x02, 0x10, /* Stream ID */ 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, /* Offset */ 0x01, 0xC4, /* Data length */ }, 1 + 2 + 8 + 4, 0x200, { .data_frame.df_offset = 0x0807060504030201UL, .stream_id = 0x210, .data_frame.df_size = 0x1C4, .data_frame.df_fin = 1, }, 1, }, { "Balls to the wall #2: every possible bit is set, except FIN", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x20 | 0x1C | 0x3, 0x00, 0x00, 0x02, 0x10, /* Stream ID */ 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, /* Offset */ 0x01, 0xC4, /* Data length */ }, 1 + 2 + 8 + 4, 0x200, { .data_frame.df_offset = 0x0807060504030201UL, .stream_id = 0x210, .data_frame.df_size = 0x1C4, .data_frame.df_fin = 0, }, 1, }, { "Data length is zero", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x40 | 0x00 | 0x1C | 0x3, 0x00, 0x00, 0x02, 0x10, /* Stream ID */ 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, /* Offset */ 0xC4, 0x01, /* Data length: note this does not matter */ }, 1 + 0 + 8 + 4, 0x200, { .data_frame.df_offset = 0x0807060504030201UL, .stream_id = 0x210, .data_frame.df_size = 0x200 - (1 + 8 + 4), .data_frame.df_fin = 1, }, 1, }, { "Stream ID length is 1", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x40 | 0x20 | 0x1C | 0x0, 0xF0, /* Stream ID */ 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, /* Offset */ 0x01, 0xC4, /* Data length */ }, 1 + 2 + 8 + 1, 0x200, { .data_frame.df_offset = 0x0807060504030201UL, .stream_id = 0xF0, .data_frame.df_size = 0x1C4, .data_frame.df_fin = 1, }, 1, }, { "All bits are zero save offset length", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x00 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, /* Offset */ 0xC4, 0x01, /* Data length */ }, 1 + 0 + 2 + 1, 0x200, { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x200 - 4, .data_frame.df_fin = 0, }, 1, }, { "Sanity check: either FIN must be set or data length is not zero #1", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x00 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, /* Offset */ }, 1 + 0 + 2 + 1, 4, /* Same as buffer size: in the absense of explicit data * length in the header, this would mean that data * length is zero. */ { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x200 - 4, .data_frame.df_fin = 0, }, 0, }, { "Sanity check: either FIN must be set or data length is not zero #2", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x20 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, /* Offset */ 0x00, 0x00, }, 1 + 2 + 2 + 1, 200, { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x200 - 4, .data_frame.df_fin = 0, }, 0, }, { "Sanity check: either FIN must be set or data length is not zero #3", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x40 | 0x20 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, /* Offset */ 0x00, 0x00, }, 1 + 2 + 2 + 1, 200, { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x0, .data_frame.df_fin = 1, }, 1, }, { "Check data bounds #1", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x20 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, /* Offset */ 0x01, 0xFA, /* Data length */ }, 1 + 2 + 2 + 1, 0x200, { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x1FA, .data_frame.df_fin = 0, }, 1, }, { "Check data bounds #2", __LINE__, select_pf_by_ver(LSQVER_043), /* 1 f d ooo ss 1fdoooss */ /* TYPE FIN DLEN OLEN SLEN */ { 0x80 | 0x00 | 0x20 | 0x04 | 0x0, 0xF0, /* Stream ID */ 0x02, 0x55, /* Offset */ 0x01, 0xFB, /* <--- One byte too many */ }, 1 + 2 + 2 + 1, 0x200, { .data_frame.df_offset = 0x255, .stream_id = 0xF0, .data_frame.df_size = 0x1FA, .data_frame.df_fin = 0, }, 0, }, /* * IETF QUIC Internet-Draft 14 Tests. */ { "Balls to the wall: every possible bit is set", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 1<<0, 0x41, 0x23, /* Stream ID */ 0x08, /* Offset */ 0x41, 0xC4, /* Data length */ }, 1 + 2 + 1 + 2, 0x200, { .data_frame.df_offset = 0x08, .stream_id = 0x123, .data_frame.df_size = 0x1C4, .data_frame.df_fin = 1, }, 1, }, { "Balls to the wall #2: every possible bit is set except FIN", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 0<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0xF0, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, /* Offset */ 0x41, 0xC4, /* Data length */ }, 1 + 4 + 8 + 2, 0x200, { .data_frame.df_offset = 0x301234567890ABCDull, .stream_id = 0x12300E4, .data_frame.df_size = 0x1C4, .data_frame.df_fin = 0, }, 1, }, { "Data length is zero", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 0<<1 | 0<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0xF0, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, /* Offset */ }, 1 + 4 + 8 + 0, 0x200, { .data_frame.df_offset = 0x301234567890ABCDull, .stream_id = 0x12300E4, .data_frame.df_size = 0x200 - 1 - 4 - 8, .data_frame.df_fin = 0, }, 1, }, { "Sanity check: what happens when data length is zero #1", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 0<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0xF0, 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, /* Offset */ 0x40, 0x00, /* Data length */ }, 1 + 4 + 8 + 2, 0x200, { .data_frame.df_offset = 0x301234567890ABCDull, .stream_id = 0x12300E4, .data_frame.df_size = 0, .data_frame.df_fin = 0, }, 1, }, { "Sanity check: what happens when data length is zero #2", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 0<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0x00, /* Offset */ 0x40, 0x00, /* Data length */ }, 1 + 4 + 1 + 2, 0x200, { .data_frame.df_offset = 0, .stream_id = 0x12300E4, .data_frame.df_size = 0, .data_frame.df_fin = 0, }, 1, }, { "Sanity check: what happens when data length is zero #3", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 0<<2 | 1<<1 | 0<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0x40, 0x00, /* Data length */ }, 1 + 4 + 0 + 2, 0x200, { .data_frame.df_offset = 0, .stream_id = 0x12300E4, .data_frame.df_size = 0, .data_frame.df_fin = 0, }, 1, }, { "Sanity check: what happens when data length is zero #3", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 1<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0x12, /* Offset */ 0x00, /* Data length */ }, 1 + 4 + 1 + 1, 0x200, { .data_frame.df_offset = 0x12, .stream_id = 0x12300E4, .data_frame.df_size = 0, .data_frame.df_fin = 1, }, 1, }, { "Check data bounds #1", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 1<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0x12, /* Offset */ 0x41, 0xF8, /* Data length */ }, 1 + 4 + 1 + 2, 0x200, { .data_frame.df_offset = 0x12, .stream_id = 0x12300E4, .data_frame.df_size = 0x200 - 1 - 4 - 1 - 2, .data_frame.df_fin = 1, }, 1, }, { "Check data bounds #2", __LINE__, select_pf_by_ver(LSQVER_ID25), /* TYPE OFF DLEN FIN */ { 0x10 | 1<<2 | 1<<1 | 1<<0, 0x81, 0x23, 0x00, 0xE4, /* Stream ID */ 0x12, /* Offset */ 0x41, 0xF9, /* Data length */ }, 1 + 4 + 1 + 2, 0x200, { .data_frame.df_offset = 0x12, .stream_id = 0x12300E4, .data_frame.df_size = 0x200 - 1 - 4 - 1 - 2, .data_frame.df_fin = 1, }, 0, }, }; static void run_test (const struct test *test) { stream_frame_t frame; memset(&frame, 0x7A, sizeof(frame)); int len = test->pf->pf_parse_stream_frame(test->buf, test->rem_packet_sz, &frame); if (test->should_succeed) { /* Check parser operation */ assert(("Parsed correct number of bytes", (size_t) len == test->buf_sz + test->frame.data_frame.df_size)); assert(("Stream ID is correct", frame.stream_id == test->frame.stream_id)); assert(("Data length is correct", frame.data_frame.df_size == test->frame.data_frame.df_size)); assert(("Offset is correct", frame.data_frame.df_offset == test->frame.data_frame.df_offset)); assert(("FIN is correct", frame.data_frame.df_fin == test->frame.data_frame.df_fin)); /* Check that initialization of other fields occurred correctly: */ assert(0 == frame.packet_in); assert(0 == frame.data_frame.df_read_off); } else { assert(("This test should fail", len < 0)); } } int main (void) { unsigned i; for (i = 0; i < sizeof(tests) / sizeof(tests[0]); ++i) run_test(&tests[i]); return 0; }