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-rw-r--r--tests/slhc/Makefile.am15
-rw-r--r--tests/slhc/slhc_test.c272
-rw-r--r--tests/slhc/slhc_test.ok154
3 files changed, 441 insertions, 0 deletions
diff --git a/tests/slhc/Makefile.am b/tests/slhc/Makefile.am
new file mode 100644
index 000000000..32a3cc447
--- /dev/null
+++ b/tests/slhc/Makefile.am
@@ -0,0 +1,15 @@
+AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include
+AM_CFLAGS=-Wall -ggdb3 $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBCARES_CFLAGS)
+
+EXTRA_DIST = slhc_test.ok
+
+noinst_PROGRAMS = slhc_test
+
+slhc_test_SOURCES = slhc_test.c
+
+slhc_test_LDADD = \
+ $(top_builddir)/src/gprs/slhc.o \
+ $(top_builddir)/src/libcommon/libcommon.a \
+ $(LIBOSMOCORE_LIBS)
+
+
diff --git a/tests/slhc/slhc_test.c b/tests/slhc/slhc_test.c
new file mode 100644
index 000000000..d2e1cd9dc
--- /dev/null
+++ b/tests/slhc/slhc_test.c
@@ -0,0 +1,272 @@
+/* Test SLHC/RFC1144 TCP/IP Header compression/decompression */
+
+/* (C) 2016 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
+ * All Rights Reserved
+ *
+ * Author: Philipp Maier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <openbsc/slhc.h>
+#include <openbsc/debug.h>
+
+#include <osmocom/core/talloc.h>
+#include <osmocom/core/utils.h>
+
+#include <osmocom/core/application.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <arpa/inet.h>
+
+/* Number of compression slots (S0-1) */
+#define SLOTS 8
+
+/* Maximum packet bytes to display */
+#define DISP_MAX_BYTES 100
+
+/* Sample packets to test with */
+#define PACKETS_LEN 15
+char *packets[] = {
+ /* With TCP Option 10 (Timestamps) in place (forces UNCOMPRESSED_TCP) */
+ "4510004046dd40004006a9a7c0a8646ec0a864640017ad8b81980100f3ac984d801800e32a1600000101080a000647de06d1bf5efffd18fffd20fffd23fffd27",
+ "4510005b46de40004006a98bc0a8646ec0a864640017ad8b8198010cf3ac984d801800e3867500000101080a000647df06d1bf61fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0",
+ "4510003746df40004006a9aec0a8646ec0a864640017ad8b81980133f3ac989f801800e35fd700000101080a000647e106d1bf63fffd01",
+ "4510003746e040004006a9adc0a8646ec0a864640017ad8b81980136f3ac98a2801800e35fd200000101080a000647e106d1bf64fffb01",
+ "4510007446e140004006a96fc0a8646ec0a864640017ad8b81980139f3ac98a5801800e37b9b00000101080a000647e206d1bf640d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a0d0a",
+ "4510004246e240004006a9a0c0a8646ec0a864640017ad8b81980179f3ac98a5801800e3dab000000101080a000647ec06d1bf6f706f6c6c7578206c6f67696e3a20",
+ /* Regular TCP packets (COMPRESSED_TCP) */
+ "4510003446dd40004006a9b3c0a8646ec0a864640017ad8b81980100f3ac984d501800e371410000fffd18fffd20fffd23fffd27",
+ "4510004f46de40004006a997c0a8646ec0a864640017ad8b8198010cf3ac984d501800e3cda40000fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0",
+ "4510002b46df40004006a9bac0a8646ec0a864640017ad8b81980133f3ac989f501800e3a70a0000fffd01",
+ "4510002b46e040004006a9b9c0a8646ec0a864640017ad8b81980136f3ac98a2501800e3a7060000fffb01",
+ "4510006846e140004006a97bc0a8646ec0a864640017ad8b81980139f3ac98a5501800e3c2d000000d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a0d0a",
+ "4510003646e240004006a9acc0a8646ec0a864640017ad8b81980179f3ac98a5501800e321fb0000706f6c6c7578206c6f67696e3a20",
+ /* UDP packets (TYPE_IP */
+ "450000396e0b40004011a0310a0901650a09170105da003500255489a60f01000001000000000000076f736d6f636f6d036f72670000010001",
+ "450000dc9eeb00004011aeae0a0917010a090165003505da00c83fbaa60f81800001000100030004076f736d6f636f6d036f72670000010001c00c00010001000079be0004904c2b4cc00c000200010000173d00130773756e6265616d08676e756d6f6e6b73c014c00c000200010000173d000603646e73c041c00c000200010000173d000a0767616e65736861c041c058000100010000173d0004d55f2e45c058001c00010000173d0010200107800045f0460000000000690001c06a0001000100006a710004d55f1b78c039000100010000173d000453ecb2cb",
+ "45000037652340004011a91b0a0901650a091701ef1b0035002376a2c3910100000100000000000006676f6f676c650264650000010001",
+ "0050b6162c10000db93a3ff908004500004726a6000038114083080808080a0901650035ef1b00338a8cc3918180000100010000000006676f6f676c650264650000010001c00c000100010000012b0004d83ad503",
+};
+
+/* Compress a packet using Van Jacobson RFC1144 header compression */
+static int compress(uint8_t *data_o, uint8_t *data_i, int len,
+ struct slcompress *comp)
+{
+ uint8_t *comp_ptr; /* Not used */
+ int compr_len;
+
+ /* Create a working copy of the incoming data */
+ memcpy(data_o, data_i, len);
+
+ /* Run compressor */
+ compr_len = slhc_compress(comp, data_i, len, data_o, &comp_ptr, 0);
+ return compr_len;
+}
+
+/* Expand a packet using Van Jacobson RFC1144 header compression */
+static int expand(uint8_t *data_o, uint8_t *data_i, int len,
+ struct slcompress *comp)
+{
+ int data_decompressed_len;
+
+ /* Create a working copy of the incoming data */
+ memcpy(data_o, data_i, len);
+
+ /* Handle an uncompressed packet (learn header information */
+ if ((data_i[0] & SL_TYPE_UNCOMPRESSED_TCP) == SL_TYPE_UNCOMPRESSED_TCP) {
+ data_o[0] &= 0x4F;
+ data_decompressed_len = slhc_remember(comp, data_o, len);
+ return data_decompressed_len;
+ }
+
+ /* Uncompress compressed packets */
+ else if (data_o[0] & SL_TYPE_COMPRESSED_TCP) {
+ data_decompressed_len = slhc_uncompress(comp, data_o, len);
+ return data_decompressed_len;
+ }
+
+ /* Regular or unknown packets will not be touched */
+ return len;
+}
+
+/* Calculate IP Header checksum */
+static uint16_t calc_ip_csum(uint8_t *data, int len)
+{
+ int i;
+ uint32_t accumulator = 0;
+ uint16_t *pointer = (uint16_t *) data;
+
+ for (i = len; i > 1; i -= 2) {
+ accumulator += *pointer;
+ pointer++;
+ }
+
+ if (len % 2)
+ accumulator += *pointer;
+
+ accumulator = (accumulator & 0xffff) + ((accumulator >> 16) & 0xffff);
+ accumulator += (accumulator >> 16) & 0xffff;
+ return (~accumulator);
+}
+
+/* Calculate TCP/IP checksum */
+static uint16_t calc_tcpip_csum(const void *ctx, uint8_t *packet, int len)
+{
+ uint8_t *buf;
+ uint16_t csum;
+
+ buf = talloc_zero_size(ctx, len);
+ memset(buf, 0, len);
+ memcpy(buf, packet + 12, 8);
+ buf[9] = packet[9];
+ buf[11] = (len - 20) & 0xFF;
+ buf[10] = (len - 20) >> 8 & 0xFF;
+ memcpy(buf + 12, packet + 20, len - 20);
+ csum = calc_ip_csum(buf, len - 20 + 12);
+ talloc_free(buf);
+ return csum;
+}
+
+/* Check TCP/IP packet */
+static void check_packet(const void *ctx, uint8_t *packet, int len)
+{
+ /* Check IP header */
+ OSMO_ASSERT(len > 20);
+ OSMO_ASSERT(calc_ip_csum(packet, 20) == 0);
+
+ printf("packet[9]=%02x\n", packet[9]);
+
+ /* Check TCP packet */
+ if (packet[9] != 0x06)
+ return;
+ OSMO_ASSERT(len > 40);
+ OSMO_ASSERT(calc_tcpip_csum(ctx, packet, len) == 0);
+}
+
+/* Compress / Decompress packets */
+static void test_slhc(const void *ctx)
+{
+ char packet_ascii[2048];
+ int i;
+
+ struct slcompress *comp;
+ uint8_t packet[1024];
+ int packet_len;
+ uint8_t packet_compr[1024];
+ int packet_compr_len;
+ uint8_t packet_decompr[1024];
+ int packet_decompr_len;
+
+ printf("Allocating compression state...\n");
+ comp = slhc_init(ctx, SLOTS, SLOTS);
+ OSMO_ASSERT(comp);
+
+ for (i = 0; i < PACKETS_LEN; i++) {
+ printf("Testing with packet No. %d\n", i);
+
+ /* Read input file */
+ memset(packet_ascii, 0, sizeof(packet_ascii));
+ memset(packet, 0, sizeof(packet));
+ memset(packet_compr, 0, sizeof(packet_compr));
+ memset(packet_decompr, 0, sizeof(packet_decompr));
+
+ OSMO_ASSERT(strlen(packets[i]) < sizeof(packet_ascii));
+ strcpy(packet_ascii, packets[i]);
+
+ packet_len =
+ osmo_hexparse(packet_ascii, packet, sizeof(packet));
+ check_packet(ctx, packet, packet_len);
+
+ /* Run compression/decompression algorithm */
+ printf("Compressing...\n");
+ packet_compr_len =
+ compress(packet_compr, packet, packet_len, comp);
+ printf("Decompressing...\n");
+ packet_decompr_len =
+ expand(packet_decompr, packet_compr, packet_compr_len,
+ comp);
+ OSMO_ASSERT(packet_decompr_len == packet_len);
+ check_packet(ctx, packet_decompr, packet_decompr_len);
+
+ /* Display results */
+ printf("Results:\n");
+ if (packet_compr_len > DISP_MAX_BYTES)
+ packet_compr_len = DISP_MAX_BYTES;
+ if (packet_len > DISP_MAX_BYTES)
+ packet_len = DISP_MAX_BYTES;
+ if (packet_decompr_len > DISP_MAX_BYTES)
+ packet_decompr_len = DISP_MAX_BYTES;
+ printf("Original Packet: (%i bytes) %s\n", packet_len,
+ osmo_hexdump_nospc(packet, packet_len));
+ printf("DecompressedPacket: (%i bytes) %s\n",
+ packet_decompr_len, osmo_hexdump_nospc(packet_decompr,
+ packet_decompr_len));
+ printf("CompressedPacket: (%i bytes) %s\n", packet_compr_len,
+ osmo_hexdump_nospc(packet_compr, packet_compr_len));
+ slhc_o_status(comp);
+ slhc_o_status(comp);
+
+ printf("\n");
+ }
+
+ printf("Freeing compression state...\n");
+ slhc_free(comp);
+ printf("\n");
+}
+
+static struct log_info_cat gprs_categories[] = {
+ [DSNDCP] = {
+ .name = "DSNDCP",
+ .description =
+ "GPRS Sub-Network Dependent Control Protocol (SNDCP)",
+ .enabled = 1,.loglevel = LOGL_DEBUG,
+ },
+ [DSLHC] = {
+ .name = "DSLHC",
+ .description =
+ "Van Jacobson RFC1144 TCP/IP header compression (SLHC)",
+ .enabled = 1,.loglevel = LOGL_DEBUG,
+ }
+};
+
+static struct log_info info = {
+ .cat = gprs_categories,
+ .num_cat = ARRAY_SIZE(gprs_categories),
+};
+
+int main(int argc, char **argv)
+{
+ void *ctx;
+
+ osmo_init_logging(&info);
+
+ ctx = talloc_named_const(NULL, 0, "slhc_ctx");
+
+ test_slhc(ctx);
+
+ printf("Done\n");
+
+ talloc_report_full(ctx, stderr);
+ OSMO_ASSERT(talloc_total_blocks(ctx) == 1);
+ return 0;
+}
+
+/* stubs */
+struct osmo_prim_hdr;
+int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx)
+{
+ abort();
+}
diff --git a/tests/slhc/slhc_test.ok b/tests/slhc/slhc_test.ok
new file mode 100644
index 000000000..71f48a179
--- /dev/null
+++ b/tests/slhc/slhc_test.ok
@@ -0,0 +1,154 @@
+Allocating compression state...
+Testing with packet No. 0
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (64 bytes) 4510004046dd40004006a9a7c0a8646ec0a864640017ad8b81980100f3ac984d801800e32a1600000101080a000647de06d1bf5efffd18fffd20fffd23fffd27
+DecompressedPacket: (64 bytes) 4510004046dd40004006a9a7c0a8646ec0a864640017ad8b81980100f3ac984d801800e32a1600000101080a000647de06d1bf5efffd18fffd20fffd23fffd27
+CompressedPacket: (64 bytes) 7510004046dd40004000a9a7c0a8646ec0a864640017ad8b81980100f3ac984d801800e32a1600000101080a000647de06d1bf5efffd18fffd20fffd23fffd27
+
+Testing with packet No. 1
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (91 bytes) 4510005b46de40004006a98bc0a8646ec0a864640017ad8b8198010cf3ac984d801800e3867500000101080a000647df06d1bf61fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+DecompressedPacket: (91 bytes) 4510005b46de40004006a98bc0a8646ec0a864640017ad8b8198010cf3ac984d801800e3867500000101080a000647df06d1bf61fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+CompressedPacket: (91 bytes) 7510005b46de40004000a98bc0a8646ec0a864640017ad8b8198010cf3ac984d801800e3867500000101080a000647df06d1bf61fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+
+Testing with packet No. 2
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (55 bytes) 4510003746df40004006a9aec0a8646ec0a864640017ad8b81980133f3ac989f801800e35fd700000101080a000647e106d1bf63fffd01
+DecompressedPacket: (55 bytes) 4510003746df40004006a9aec0a8646ec0a864640017ad8b81980133f3ac989f801800e35fd700000101080a000647e106d1bf63fffd01
+CompressedPacket: (55 bytes) 7510003746df40004000a9aec0a8646ec0a864640017ad8b81980133f3ac989f801800e35fd700000101080a000647e106d1bf63fffd01
+
+Testing with packet No. 3
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (55 bytes) 4510003746e040004006a9adc0a8646ec0a864640017ad8b81980136f3ac98a2801800e35fd200000101080a000647e106d1bf64fffb01
+DecompressedPacket: (55 bytes) 4510003746e040004006a9adc0a8646ec0a864640017ad8b81980136f3ac98a2801800e35fd200000101080a000647e106d1bf64fffb01
+CompressedPacket: (55 bytes) 7510003746e040004000a9adc0a8646ec0a864640017ad8b81980136f3ac98a2801800e35fd200000101080a000647e106d1bf64fffb01
+
+Testing with packet No. 4
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (100 bytes) 4510007446e140004006a96fc0a8646ec0a864640017ad8b81980139f3ac98a5801800e37b9b00000101080a000647e206d1bf640d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d
+DecompressedPacket: (100 bytes) 4510007446e140004006a96fc0a8646ec0a864640017ad8b81980139f3ac98a5801800e37b9b00000101080a000647e206d1bf640d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d
+CompressedPacket: (100 bytes) 7510007446e140004000a96fc0a8646ec0a864640017ad8b81980139f3ac98a5801800e37b9b00000101080a000647e206d1bf640d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d
+
+Testing with packet No. 5
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (66 bytes) 4510004246e240004006a9a0c0a8646ec0a864640017ad8b81980179f3ac98a5801800e3dab000000101080a000647ec06d1bf6f706f6c6c7578206c6f67696e3a20
+DecompressedPacket: (66 bytes) 4510004246e240004006a9a0c0a8646ec0a864640017ad8b81980179f3ac98a5801800e3dab000000101080a000647ec06d1bf6f706f6c6c7578206c6f67696e3a20
+CompressedPacket: (66 bytes) 7510004246e240004000a9a0c0a8646ec0a864640017ad8b81980179f3ac98a5801800e3dab000000101080a000647ec06d1bf6f706f6c6c7578206c6f67696e3a20
+
+Testing with packet No. 6
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (52 bytes) 4510003446dd40004006a9b3c0a8646ec0a864640017ad8b81980100f3ac984d501800e371410000fffd18fffd20fffd23fffd27
+DecompressedPacket: (52 bytes) 4510003446dd40004006a9b3c0a8646ec0a864640017ad8b81980100f3ac984d501800e371410000fffd18fffd20fffd23fffd27
+CompressedPacket: (52 bytes) 7510003446dd40004000a9b3c0a8646ec0a864640017ad8b81980100f3ac984d501800e371410000fffd18fffd20fffd23fffd27
+
+Testing with packet No. 7
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (79 bytes) 4510004f46de40004006a997c0a8646ec0a864640017ad8b8198010cf3ac984d501800e3cda40000fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+DecompressedPacket: (79 bytes) 4510004f46de40004006a997c0a8646ec0a864640017ad8b8198010cf3ac984d501800e3cda40000fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+CompressedPacket: (43 bytes) df00cda4fffb03fffd1ffffd21fffe22fffb05fffa2001fff0fffa2301fff0fffa2701fff0fffa1801fff0
+
+Testing with packet No. 8
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (43 bytes) 4510002b46df40004006a9bac0a8646ec0a864640017ad8b81980133f3ac989f501800e3a70a0000fffd01
+DecompressedPacket: (43 bytes) 4510002b46df40004006a9bac0a8646ec0a864640017ad8b81980133f3ac989f501800e3a70a0000fffd01
+CompressedPacket: (9 bytes) dc00a70a5227fffd01
+
+Testing with packet No. 9
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (43 bytes) 4510002b46e040004006a9b9c0a8646ec0a864640017ad8b81980136f3ac98a2501800e3a7060000fffb01
+DecompressedPacket: (43 bytes) 4510002b46e040004006a9b9c0a8646ec0a864640017ad8b81980136f3ac98a2501800e3a7060000fffb01
+CompressedPacket: (7 bytes) db00a706fffb01
+
+Testing with packet No. 10
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (100 bytes) 4510006846e140004006a97bc0a8646ec0a864640017ad8b81980139f3ac98a5501800e3c2d000000d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d
+DecompressedPacket: (100 bytes) 4510006846e140004006a97bc0a8646ec0a864640017ad8b81980139f3ac98a5501800e3c2d000000d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d
+CompressedPacket: (68 bytes) db00c2d00d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a57656c6c636f6d6520746f20706f6c6c75780d0a2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d0d0a0d0a
+
+Testing with packet No. 11
+packet[9]=06
+Compressing...
+Decompressing...
+packet[9]=06
+Results:
+Original Packet: (54 bytes) 4510003646e240004006a9acc0a8646ec0a864640017ad8b81980179f3ac98a5501800e321fb0000706f6c6c7578206c6f67696e3a20
+DecompressedPacket: (54 bytes) 4510003646e240004006a9acc0a8646ec0a864640017ad8b81980179f3ac98a5501800e321fb0000706f6c6c7578206c6f67696e3a20
+CompressedPacket: (18 bytes) df0021fb706f6c6c7578206c6f67696e3a20
+
+Testing with packet No. 12
+packet[9]=11
+Compressing...
+Decompressing...
+packet[9]=11
+Results:
+Original Packet: (57 bytes) 450000396e0b40004011a0310a0901650a09170105da003500255489a60f01000001000000000000076f736d6f636f6d036f72670000010001
+DecompressedPacket: (57 bytes) 450000396e0b40004011a0310a0901650a09170105da003500255489a60f01000001000000000000076f736d6f636f6d036f72670000010001
+CompressedPacket: (57 bytes) 450000396e0b40004011a0310a0901650a09170105da003500255489a60f01000001000000000000076f736d6f636f6d036f72670000010001
+
+Testing with packet No. 13
+packet[9]=11
+Compressing...
+Decompressing...
+packet[9]=11
+Results:
+Original Packet: (100 bytes) 450000dc9eeb00004011aeae0a0917010a090165003505da00c83fbaa60f81800001000100030004076f736d6f636f6d036f72670000010001c00c00010001000079be0004904c2b4cc00c000200010000173d00130773756e6265616d08676e756d6f6e
+DecompressedPacket: (100 bytes) 450000dc9eeb00004011aeae0a0917010a090165003505da00c83fbaa60f81800001000100030004076f736d6f636f6d036f72670000010001c00c00010001000079be0004904c2b4cc00c000200010000173d00130773756e6265616d08676e756d6f6e
+CompressedPacket: (100 bytes) 450000dc9eeb00004011aeae0a0917010a090165003505da00c83fbaa60f81800001000100030004076f736d6f636f6d036f72670000010001c00c00010001000079be0004904c2b4cc00c000200010000173d00130773756e6265616d08676e756d6f6e
+
+Testing with packet No. 14
+packet[9]=11
+Compressing...
+Decompressing...
+packet[9]=11
+Results:
+Original Packet: (55 bytes) 45000037652340004011a91b0a0901650a091701ef1b0035002376a2c3910100000100000000000006676f6f676c650264650000010001
+DecompressedPacket: (55 bytes) 45000037652340004011a91b0a0901650a091701ef1b0035002376a2c3910100000100000000000006676f6f676c650264650000010001
+CompressedPacket: (55 bytes) 45000037652340004011a91b0a0901650a091701ef1b0035002376a2c3910100000100000000000006676f6f676c650264650000010001
+
+Freeing compression state...
+
+Done
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 05:19:45 +0000