libwmc: beginning of bits for WMC-based devices like UML290
This commit is contained in:
Dan Williams
@@ -38,6 +38,7 @@ policy/org.freedesktop.modem-manager.policy
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include/
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libqcdm/tests/test-qcdm
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libwmc/tests/test-wmc
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po/Makefile.in.in
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po/POTFILES
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+1
-1
@@ -20,7 +20,7 @@ all: $(GENERATED_FILES)
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CLEANFILES = $(GENERATED_FILES)
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endif
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SUBDIRS = . marshallers libqcdm src plugins introspection po policy test
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SUBDIRS = . marshallers libqcdm libwmc src plugins introspection po policy test
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if WITH_POLKIT
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SUBDIRS += policy
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@@ -143,6 +143,9 @@ marshallers/Makefile
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libqcdm/Makefile
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libqcdm/src/Makefile
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libqcdm/tests/Makefile
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libwmc/Makefile
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libwmc/src/Makefile
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libwmc/tests/Makefile
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src/Makefile
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src/tests/Makefile
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plugins/Makefile
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@@ -0,0 +1,2 @@
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SUBDIRS=src tests
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@@ -0,0 +1,28 @@
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noinst_LTLIBRARIES = libwmc.la libwmc-test.la
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libwmc_la_CPPFLAGS = \
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$(MM_CFLAGS)
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libwmc_la_SOURCES = \
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utils.c \
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utils.h
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libwmc_la_LIBADD = \
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$(MM_LIBS)
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###########################################
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# Test library without symbol versioning
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###########################################
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libwmc_test_la_CPPFLAGS = \
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$(MM_CFLAGS)
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libwmc_test_la_SOURCES = \
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utils.c \
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utils.h
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libwmc_test_la_LIBADD = \
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$(MM_LIBS)
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@@ -0,0 +1,374 @@
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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* Copyright (C) 2010 Red Hat, Inc.
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*
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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 version 2 of the GNU General Public
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* License as published by the Free Software Foundation
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <malloc.h>
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#include <fcntl.h>
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#include <string.h>
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#include "utils.h"
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/* QCDM protocol frames are pseudo Async HDLC frames which end with a 3-byte
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* trailer. This trailer consists of the 16-bit CRC of the frame plus an ending
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* "async control character" whose value is 0x7E. The frame *and* the CRC are
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* escaped before adding the trailing control character so that the control
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* character (0x7E) and the escape marker (0x7D) are never seen in the frame.
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*/
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/* Table of CRCs for each possible byte, with a generator polynomial of 0x8408 */
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const guint16 crc_table[256] = {
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0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
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0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
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0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
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0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
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0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
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0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
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0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
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0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
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0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
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0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
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0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
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0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
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0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
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0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
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0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
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0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
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0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
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0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
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0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
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0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
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0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
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0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
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0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
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0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
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0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
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0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
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0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
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0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
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0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
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0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
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0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
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0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
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};
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/* Calculate the CRC for a buffer using a seed of 0xffff */
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guint16
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crc16 (const char *buffer, gsize len, guint16 seed)
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{
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guint16 crc = seed ? seed : 0xFFFF;
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while (len--)
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crc = crc_table[(crc ^ *buffer++) & 0xff] ^ (crc >> 8);
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return ~crc;
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}
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#define DIAG_ESC_CHAR 0x7D /* Escape sequence 1st character value */
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#define DIAG_ESC_MASK 0x20 /* Escape sequence complement value */
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/* Performs DM escaping on inbuf putting the result into outbuf, and returns
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* the final length of the buffer.
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*/
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gsize
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hdlc_escape (const char *inbuf,
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gsize inbuf_len,
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gboolean escape_all_ctrl,
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char *outbuf,
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gsize outbuf_len)
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{
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const char *src = inbuf;
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char *dst = outbuf;
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size_t i = inbuf_len;
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g_return_val_if_fail (inbuf != NULL, 0);
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g_return_val_if_fail (inbuf_len > 0, 0);
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g_return_val_if_fail (outbuf != NULL, 0);
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g_return_val_if_fail (outbuf_len > inbuf_len, 0);
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/* Since escaping potentially doubles the # of bytes, short-circuit the
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* length check if destination buffer is clearly large enough. Note the
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*
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*/
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if (outbuf_len <= inbuf_len << 1) {
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size_t outbuf_required = inbuf_len + 1; /* +1 for the trailing control char */
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/* Each escaped character takes up two bytes in the output buffer */
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while (i--) {
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if ( *src == DIAG_CONTROL_CHAR
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|| *src == DIAG_ESC_CHAR
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|| (escape_all_ctrl && *src <= 0x20))
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outbuf_required++;
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src++;
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}
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if (outbuf_len < outbuf_required)
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return 0;
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}
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/* Do the actual escaping. Replace both the control character and
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* the escape character in the source buffer with the following sequence:
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*
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* <escape_char> <src_byte ^ escape_mask>
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*/
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src = inbuf;
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i = inbuf_len;
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while (i--) {
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if ( *src == DIAG_CONTROL_CHAR
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|| *src == DIAG_ESC_CHAR
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|| (escape_all_ctrl && *src <= 0x20)) {
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*dst++ = DIAG_ESC_CHAR;
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*dst++ = *src ^ DIAG_ESC_MASK;
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} else
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*dst++ = *src;
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src++;
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}
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return (dst - outbuf);
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}
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gsize
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hdlc_unescape (const char *inbuf,
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gsize inbuf_len,
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char *outbuf,
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gsize outbuf_len,
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gboolean *escaping)
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{
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size_t i, outsize;
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g_return_val_if_fail (inbuf_len > 0, 0);
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g_return_val_if_fail (outbuf_len >= inbuf_len, 0);
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g_return_val_if_fail (escaping != NULL, 0);
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for (i = 0, outsize = 0; i < inbuf_len; i++) {
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if (*escaping) {
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outbuf[outsize++] = inbuf[i] ^ DIAG_ESC_MASK;
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*escaping = FALSE;
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} else if (inbuf[i] == DIAG_ESC_CHAR)
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*escaping = TRUE;
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else
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outbuf[outsize++] = inbuf[i];
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/* About to overrun output buffer size */
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if (outsize >= outbuf_len)
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return 0;
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}
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return outsize;
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}
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/**
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* hdlc_encapsulate_buffer:
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* @inbuf: data buffer to encapsulate
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* @cmd_len: size of the data contained in @inbuf
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* @inbuf_len: total size of @inbuf itself (not just the data)
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* @crc_seed: if non-zero, CRC-16 seed to use; if 0, uses standard 0xFFFF
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* @add_trailer: if %TRUE, adds trailing 0x7E
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* @escape_all_ctrl: if %TRUE, escapes all control characters instead of only
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* special HDLC escape characters 0x7D and 0x7E
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* @outbuf: buffer in which to put the encapsulated data
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* @outbuf_len: total size of @outbuf
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*
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* Escapes and CRCs given data using HDLC-style mechanisms, and optionally adds
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* the trailing control character that denotes the end of the HDLC frame.
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*
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* Returns: size of the encapsulated data writted to @outbuf.
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**/
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gsize
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hdlc_encapsulate_buffer (char *inbuf,
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gsize cmd_len,
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gsize inbuf_len,
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guint16 crc_seed,
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gboolean add_trailer,
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gboolean escape_all_ctrl,
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char *outbuf,
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gsize outbuf_len)
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{
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guint16 crc;
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gsize escaped_len;
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g_return_val_if_fail (inbuf != NULL, 0);
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g_return_val_if_fail (cmd_len >= 1, 0);
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g_return_val_if_fail (inbuf_len >= cmd_len + 2, 0); /* space for CRC */
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g_return_val_if_fail (outbuf != NULL, 0);
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/* Add the CRC */
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crc = crc16 (inbuf, cmd_len, crc_seed ? crc_seed : 0xFFFF);
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inbuf[cmd_len++] = crc & 0xFF;
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inbuf[cmd_len++] = (crc >> 8) & 0xFF;
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escaped_len = hdlc_escape (inbuf, cmd_len, escape_all_ctrl, outbuf, outbuf_len);
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g_return_val_if_fail (outbuf_len > escaped_len, 0);
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if (add_trailer)
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outbuf[escaped_len++] = DIAG_CONTROL_CHAR;
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return escaped_len;
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}
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#define AT_WMC_PREFIX "AT*WMC="
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/**
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* uml290_wmc_encapsulate:
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* @inbuf: data buffer to encapsulate
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* @cmd_len: size of the data contained in @inbuf
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* @inbuf_len: total size of @inbuf itself (not just the data)
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* @outbuf: buffer in which to put the encapsulated data
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* @outbuf_len: total size of @outbuf
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*
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* Escapes and CRCs given data using HDLC-style mechanisms with UML290 specific
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* quirks.
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*
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* Returns: size of the encapsulated data writted to @outbuf.
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*/
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gsize
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uml290_wmc_encapsulate (char *inbuf,
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gsize cmd_len,
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gsize inbuf_len,
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char *outbuf,
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gsize outbuf_len)
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{
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gsize encap_len;
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gsize estimated_out_len;
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g_return_val_if_fail (inbuf != NULL, 0);
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g_return_val_if_fail (cmd_len >= 1, 0);
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g_return_val_if_fail (inbuf_len >= cmd_len + 2, 0); /* space for CRC */
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g_return_val_if_fail (outbuf != NULL, 0);
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estimated_out_len = inbuf_len + strlen (AT_WMC_PREFIX);
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estimated_out_len += 3; /* CRC + trailer */
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estimated_out_len += cmd_len * 1.3; /* escaping */
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g_return_val_if_fail (outbuf_len > estimated_out_len, 0);
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memcpy (outbuf, AT_WMC_PREFIX, strlen (AT_WMC_PREFIX));
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encap_len = hdlc_encapsulate_buffer (inbuf, cmd_len, inbuf_len, 0xAAFE,
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FALSE, TRUE,
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outbuf + strlen (AT_WMC_PREFIX),
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outbuf_len);
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if (encap_len > 0) {
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encap_len += strlen (AT_WMC_PREFIX);
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outbuf[encap_len++] = 0x0D; /* trailer */
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}
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return encap_len;
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}
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/**
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* hdlc_decapsulate_buffer:
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* @inbuf: buffer in which to look for an HDLC frame
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* @inbuf_len: length of valid data in @inbuf
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* @outbuf: buffer in which to put decapsulated data from the HDLC frame
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* @outbuf_len: max size of @outbuf
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* @out_decap_len: on success, size of the decapsulated data
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* @out_used: on either success or failure, amount of data used; caller should
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* discard this much data from @inbuf before the next call to this function
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* @out_need_more: when TRUE, indicates that more data is required before
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* a determination about a valid HDLC frame can be made; caller should add
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* more data to @inbuf before calling this function again.
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*
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* Attempts to retrieve, unescape, and CRC-check an HDLC frame from the given
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* buffer.
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*
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* Returns: FALSE on error (packet was invalid or malformed, or the CRC check
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* failed, etc) and places number of bytes to discard from @inbuf in @out_used.
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* When TRUE, either more data is required (in which case @out_need_more will
|
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* be TRUE), or a data packet was successfully retrieved from @inbuf and the
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* decapsulated packet of length @out_decap_len was placed into @outbuf. In
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* all cases the caller should advance the buffer by the number of bytes
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* returned in @out_used before calling this function again.
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**/
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gboolean
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hdlc_decapsulate_buffer (const char *inbuf,
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gsize inbuf_len,
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char *outbuf,
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gsize outbuf_len,
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gsize *out_decap_len,
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gsize *out_used,
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gboolean *out_need_more)
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{
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gboolean escaping = FALSE;
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gsize i, pkt_len = 0, unesc_len;
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guint16 crc, pkt_crc;
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g_return_val_if_fail (inbuf != NULL, FALSE);
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g_return_val_if_fail (outbuf != NULL, FALSE);
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g_return_val_if_fail (outbuf_len > 0, FALSE);
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g_return_val_if_fail (out_decap_len != NULL, FALSE);
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g_return_val_if_fail (out_used != NULL, FALSE);
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g_return_val_if_fail (out_need_more != NULL, FALSE);
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*out_decap_len = 0;
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*out_used = 0;
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*out_need_more = FALSE;
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if (inbuf_len < 4) {
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*out_need_more = TRUE;
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return TRUE;
|
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}
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||||
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/* Find the async control character */
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for (i = 0; i < inbuf_len; i++) {
|
||||
if (inbuf[i] == DIAG_CONTROL_CHAR) {
|
||||
/* If the control character shows up in a position before a valid
|
||||
* QCDM packet length (4), the packet is malformed.
|
||||
*/
|
||||
if (i < 3) {
|
||||
/* Tell the caller to advance the buffer past the control char */
|
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*out_used = i + 1;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
pkt_len = i;
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break;
|
||||
}
|
||||
}
|
||||
|
||||
/* No control char yet, need more data */
|
||||
if (!pkt_len) {
|
||||
*out_need_more = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Unescape first; note that pkt_len */
|
||||
unesc_len = hdlc_unescape (inbuf, pkt_len, outbuf, outbuf_len, &escaping);
|
||||
if (!unesc_len) {
|
||||
/* Tell the caller to advance the buffer past the control char */
|
||||
*out_used = pkt_len + 1;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (escaping) {
|
||||
*out_need_more = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Check the CRC of the packet's data */
|
||||
crc = crc16 (outbuf, unesc_len - 2, 0);
|
||||
pkt_crc = outbuf[unesc_len - 2] & 0xFF;
|
||||
pkt_crc |= (outbuf[unesc_len - 1] & 0xFF) << 8;
|
||||
if (crc != pkt_crc) {
|
||||
*out_used = pkt_len + 1; /* packet + CRC + 0x7E */
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
*out_used = pkt_len + 1; /* packet + CRC + 0x7E */
|
||||
*out_decap_len = unesc_len - 2; /* decap_len should not include the CRC */
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,64 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2011 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef UTILS_H
|
||||
#define UTILS_H
|
||||
|
||||
#include <glib.h>
|
||||
|
||||
#define DIAG_CONTROL_CHAR 0x7E
|
||||
#define DIAG_TRAILER_LEN 3
|
||||
|
||||
guint16 crc16 (const char *buffer, gsize len, guint16 seed);
|
||||
|
||||
gsize hdlc_escape (const char *inbuf,
|
||||
gsize inbuf_len,
|
||||
gboolean escape_all_ctrl,
|
||||
char *outbuf,
|
||||
gsize outbuf_len);
|
||||
|
||||
gsize hdlc_unescape (const char *inbuf,
|
||||
gsize inbuf_len,
|
||||
char *outbuf,
|
||||
gsize outbuf_len,
|
||||
gboolean *escaping);
|
||||
|
||||
gsize hdlc_encapsulate_buffer (char *inbuf,
|
||||
gsize cmd_len,
|
||||
gsize inbuf_len,
|
||||
guint16 crc_seed,
|
||||
gboolean add_trailer,
|
||||
gboolean escape_all_ctrl,
|
||||
char *outbuf,
|
||||
gsize outbuf_len);
|
||||
|
||||
gsize uml290_wmc_encapsulate (char *inbuf,
|
||||
gsize cmd_len,
|
||||
gsize inbuf_len,
|
||||
char *outbuf,
|
||||
gsize outbuf_len);
|
||||
|
||||
gboolean hdlc_decapsulate_buffer (const char *inbuf,
|
||||
gsize inbuf_len,
|
||||
char *outbuf,
|
||||
gsize outbuf_len,
|
||||
gsize *out_decap_len,
|
||||
gsize *out_used,
|
||||
gboolean *out_need_more);
|
||||
|
||||
#endif /* UTILS_H */
|
||||
|
||||
@@ -0,0 +1,28 @@
|
||||
INCLUDES = \
|
||||
-I$(top_srcdir)/libwmc/src
|
||||
|
||||
noinst_PROGRAMS = test-wmc
|
||||
|
||||
test_wmc_SOURCES = \
|
||||
test-wmc-crc.c \
|
||||
test-wmc-crc.h \
|
||||
test-wmc-escaping.c \
|
||||
test-wmc-escaping.h \
|
||||
test-wmc-utils.c \
|
||||
test-wmc-utils.h \
|
||||
test-wmc.c
|
||||
|
||||
test_wmc_CPPFLAGS = \
|
||||
$(MM_CFLAGS)
|
||||
|
||||
test_wmc_LDADD = \
|
||||
$(top_builddir)/libwmc/src/libwmc.la \
|
||||
$(MM_LIBS)
|
||||
|
||||
if WITH_TESTS
|
||||
|
||||
check-local: test-wmc
|
||||
$(abs_builddir)/test-wmc
|
||||
|
||||
endif
|
||||
|
||||
@@ -0,0 +1,65 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <glib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "test-wmc-crc.h"
|
||||
#include "utils.h"
|
||||
|
||||
void
|
||||
test_crc16_2 (void *f, void *data)
|
||||
{
|
||||
static const char buf[] = {
|
||||
0x26, 0xb2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00
|
||||
};
|
||||
guint16 crc;
|
||||
guint16 expected = 0x6D69;
|
||||
|
||||
/* CRC check */
|
||||
crc = crc16 (buf, sizeof (buf), 0);
|
||||
g_assert (crc == expected);
|
||||
}
|
||||
|
||||
void
|
||||
test_crc16_1 (void *f, void *data)
|
||||
{
|
||||
static const char buf[] = {
|
||||
0x4b, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00,
|
||||
0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x3f,
|
||||
0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
|
||||
};
|
||||
guint16 crc;
|
||||
guint16 expected = 0x097A;
|
||||
|
||||
/* CRC check */
|
||||
crc = crc16 (buf, sizeof (buf), 0);
|
||||
g_assert (crc == expected);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,25 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef TEST_WMC_CRC_H
|
||||
#define TEST_WMC_CRC_H
|
||||
|
||||
void test_crc16_2 (void *f, void *data);
|
||||
void test_crc16_1 (void *f, void *data);
|
||||
|
||||
#endif /* TEST_WMC_CRC_H */
|
||||
|
||||
@@ -0,0 +1,124 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <glib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "test-wmc-escaping.h"
|
||||
#include "utils.h"
|
||||
|
||||
static const char data1[] = {
|
||||
0x70, 0x68, 0x6f, 0x6e, 0x65, 0x66, 0x61, 0x69, 0x6c, 0x75, 0x72, 0x65,
|
||||
0x0a, 0x6e, 0x6f, 0x63, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f,
|
||||
0x6e, 0x74, 0x6f, 0x70, 0x68, 0x6f, 0x6e, 0x65, 0x0a, 0x70, 0x68, 0x6f,
|
||||
0x6e, 0x7e, 0x7e, 0x7e, 0x7d, 0x7d, 0x7e, 0x7d, 0x7e, 0x7d, 0x7e, 0x6e,
|
||||
0x6b, 0x72, 0x65, 0x73, 0x65, 0x72, 0x76, 0x65, 0x64, 0x0a, 0x6f, 0x70,
|
||||
0x65, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x6c,
|
||||
0x6c, 0x6f, 0x77, 0x65, 0x64, 0x0a, 0x6f, 0x70, 0x65, 0x72, 0x61, 0x74,
|
||||
0x69, 0x6f, 0x6e, 0x6e, 0x6f, 0x74, 0x73, 0x75, 0x70, 0x70, 0x6f, 0x72,
|
||||
0x74, 0x65, 0x64, 0x0a, 0x70, 0x68, 0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e,
|
||||
0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64, 0x0a, 0x70, 0x68, 0x66,
|
||||
0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e, 0x72, 0x65, 0x71, 0x75, 0x69, 0x72,
|
||||
0x65, 0x64, 0x0a, 0x70, 0x68, 0x66, 0x73, 0x69, 0x6d, 0x70, 0x75, 0x6b,
|
||||
0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64, 0x0a, 0x73, 0x69, 0x6d,
|
||||
0x6e, 0x6f, 0x74, 0x69, 0x6e, 0x73, 0x65, 0x72, 0x74, 0x65, 0x64, 0x0a,
|
||||
0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e, 0x72, 0x65, 0x71, 0x75, 0x69, 0x72,
|
||||
0x65, 0x64, 0x0a, 0x73, 0x69, 0x6d, 0x70, 0x75, 0x6b, 0x72, 0x65, 0x71,
|
||||
0x75, 0x69, 0x72, 0x65, 0x64, 0x0a, 0x73, 0x69, 0x6d, 0x66, 0x61, 0x69,
|
||||
0x6c, 0x75, 0x72, 0x65, 0x0a, 0x73, 0x69, 0x6d, 0x62, 0x75, 0x73, 0x79,
|
||||
0x0a, 0x73, 0x69, 0x6d, 0x77, 0x72, 0x6f, 0x6e, 0x67, 0x0a, 0x69, 0x6e,
|
||||
0x63, 0x6f, 0x72, 0x72, 0x65, 0x63, 0x74, 0x70, 0x61, 0x73, 0x73, 0x77,
|
||||
0x6f, 0x72, 0x64, 0x0a, 0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e, 0x32, 0x72,
|
||||
0x65, 0x71, 0x75, 0x69
|
||||
};
|
||||
|
||||
static const char expected1[] = {
|
||||
0x70, 0x68, 0x6f, 0x6e, 0x65, 0x66, 0x61, 0x69, 0x6c, 0x75, 0x72, 0x65,
|
||||
0x0a, 0x6e, 0x6f, 0x63, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f,
|
||||
0x6e, 0x74, 0x6f, 0x70, 0x68, 0x6f, 0x6e, 0x65, 0x0a, 0x70, 0x68, 0x6f,
|
||||
0x6e, 0x7d, 0x5e, 0x7d, 0x5e, 0x7d, 0x5e, 0x7d, 0x5d, 0x7d, 0x5d, 0x7d,
|
||||
0x5e, 0x7d, 0x5d, 0x7d, 0x5e, 0x7d, 0x5d, 0x7d, 0x5e, 0x6e, 0x6b, 0x72,
|
||||
0x65, 0x73, 0x65, 0x72, 0x76, 0x65, 0x64, 0x0a, 0x6f, 0x70, 0x65, 0x72,
|
||||
0x61, 0x74, 0x69, 0x6f, 0x6e, 0x6e, 0x6f, 0x74, 0x61, 0x6c, 0x6c, 0x6f,
|
||||
0x77, 0x65, 0x64, 0x0a, 0x6f, 0x70, 0x65, 0x72, 0x61, 0x74, 0x69, 0x6f,
|
||||
0x6e, 0x6e, 0x6f, 0x74, 0x73, 0x75, 0x70, 0x70, 0x6f, 0x72, 0x74, 0x65,
|
||||
0x64, 0x0a, 0x70, 0x68, 0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e, 0x72, 0x65,
|
||||
0x71, 0x75, 0x69, 0x72, 0x65, 0x64, 0x0a, 0x70, 0x68, 0x66, 0x73, 0x69,
|
||||
0x6d, 0x70, 0x69, 0x6e, 0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64,
|
||||
0x0a, 0x70, 0x68, 0x66, 0x73, 0x69, 0x6d, 0x70, 0x75, 0x6b, 0x72, 0x65,
|
||||
0x71, 0x75, 0x69, 0x72, 0x65, 0x64, 0x0a, 0x73, 0x69, 0x6d, 0x6e, 0x6f,
|
||||
0x74, 0x69, 0x6e, 0x73, 0x65, 0x72, 0x74, 0x65, 0x64, 0x0a, 0x73, 0x69,
|
||||
0x6d, 0x70, 0x69, 0x6e, 0x72, 0x65, 0x71, 0x75, 0x69, 0x72, 0x65, 0x64,
|
||||
0x0a, 0x73, 0x69, 0x6d, 0x70, 0x75, 0x6b, 0x72, 0x65, 0x71, 0x75, 0x69,
|
||||
0x72, 0x65, 0x64, 0x0a, 0x73, 0x69, 0x6d, 0x66, 0x61, 0x69, 0x6c, 0x75,
|
||||
0x72, 0x65, 0x0a, 0x73, 0x69, 0x6d, 0x62, 0x75, 0x73, 0x79, 0x0a, 0x73,
|
||||
0x69, 0x6d, 0x77, 0x72, 0x6f, 0x6e, 0x67, 0x0a, 0x69, 0x6e, 0x63, 0x6f,
|
||||
0x72, 0x72, 0x65, 0x63, 0x74, 0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72,
|
||||
0x64, 0x0a, 0x73, 0x69, 0x6d, 0x70, 0x69, 0x6e, 0x32, 0x72, 0x65, 0x71,
|
||||
0x75, 0x69
|
||||
};
|
||||
|
||||
void
|
||||
test_escape1 (void *f, void *data)
|
||||
{
|
||||
char escaped[1024];
|
||||
gsize len;
|
||||
|
||||
/* Ensure that escaping in general works */
|
||||
len = hdlc_escape (data1, sizeof (data1), FALSE, escaped, sizeof (escaped));
|
||||
g_assert (len == 266);
|
||||
g_assert (len == sizeof (expected1));
|
||||
g_assert (memcmp (escaped, expected1, len) == 0);
|
||||
}
|
||||
|
||||
static const char data2[] = {
|
||||
0x4b, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00,
|
||||
0x02, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x3f,
|
||||
0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff
|
||||
};
|
||||
|
||||
void
|
||||
test_escape2 (void *f, void *data)
|
||||
{
|
||||
char escaped[1024];
|
||||
gsize len;
|
||||
|
||||
/* Ensure that escaping data that doesn't need escaping works */
|
||||
len = hdlc_escape (data2, sizeof (data2), FALSE, escaped, sizeof (escaped));
|
||||
g_assert (len == sizeof (data2));
|
||||
g_assert (memcmp (escaped, data2, len) == 0);
|
||||
}
|
||||
|
||||
void
|
||||
test_escape_unescape (void *f, void *data)
|
||||
{
|
||||
char escaped[512];
|
||||
char unescaped[512];
|
||||
gsize len, unlen;
|
||||
gboolean escaping = FALSE;
|
||||
|
||||
/* Ensure that escaping data that needs escaping, and then unescaping it,
|
||||
* produces the exact same data as was originally escaped.
|
||||
*/
|
||||
len = hdlc_escape (data1, sizeof (data1), FALSE, escaped, sizeof (escaped));
|
||||
unlen = hdlc_unescape (escaped, len, unescaped, sizeof (unescaped), &escaping);
|
||||
|
||||
g_assert (unlen == sizeof (data1));
|
||||
g_assert (memcmp (unescaped, data1, unlen) == 0);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,26 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef TEST_WMC_ESCAPING_H
|
||||
#define TEST_WMC_ESCAPING_H
|
||||
|
||||
void test_escape1 (void *f, void *data);
|
||||
void test_escape2 (void *f, void *data);
|
||||
void test_escape_unescape (void *f, void *data);
|
||||
|
||||
#endif /* TEST_WMC_ESCAPING_H */
|
||||
|
||||
@@ -0,0 +1,107 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <glib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "test-wmc-utils.h"
|
||||
#include "utils.h"
|
||||
|
||||
static const char decap_inbuf[] = {
|
||||
0x40, 0x03, 0x00, 0x01, 0x00, 0x19, 0xf0, 0x00, 0x16, 0x00, 0x21, 0x00,
|
||||
0x1c, 0x00, 0xd8, 0x00, 0x3f, 0x00, 0x56, 0x01, 0x3f, 0x00, 0x15, 0x00,
|
||||
0x1a, 0x00, 0x11, 0x01, 0x3f, 0x00, 0x92, 0x01, 0x3f, 0x00, 0x39, 0x00,
|
||||
0x3f, 0x00, 0x95, 0x01, 0x3f, 0x00, 0x12, 0x00, 0x3f, 0x00, 0x23, 0x01,
|
||||
0x3f, 0x00, 0x66, 0x00, 0x3f, 0x00, 0x0b, 0x01, 0x3f, 0x00, 0xae, 0x00,
|
||||
0x3f, 0x00, 0x02, 0x01, 0x3f, 0x00, 0xa8, 0x00, 0x3f, 0x00, 0x50, 0x01,
|
||||
0x3f, 0x00, 0xf8, 0x01, 0x3f, 0x00, 0x57, 0x00, 0x3f, 0x00, 0x7d, 0x5e,
|
||||
0x00, 0x3f, 0x00, 0x93, 0x00, 0x3f, 0x00, 0xbd, 0x00, 0x3f, 0x00, 0x77,
|
||||
0x01, 0x3f, 0x00, 0xb7, 0x00, 0x3f, 0x00, 0xab, 0x00, 0x3f, 0x00, 0x33,
|
||||
0x00, 0x3f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0xad, 0xde, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13,
|
||||
0x13, 0x50, 0x1f, 0x00, 0x00, 0xff, 0xff, 0x00, 0xaa, 0x19, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb1, 0xc4, 0x7d, 0x5e,
|
||||
0x7d, 0x5e, 0x7d, 0x5d, 0x5d, 0x04, 0x58, 0x1b, 0x5b, 0x1b, 0x00, 0x00,
|
||||
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x65, 0x69, 0x7e
|
||||
};
|
||||
|
||||
void
|
||||
test_utils_decapsulate_buffer (void *f, void *data)
|
||||
{
|
||||
gboolean success;
|
||||
char outbuf[512];
|
||||
gsize decap_len = 0;
|
||||
gsize used = 0;
|
||||
gboolean more = FALSE;
|
||||
|
||||
success = hdlc_decapsulate_buffer (decap_inbuf, sizeof (decap_inbuf),
|
||||
outbuf, sizeof (outbuf),
|
||||
&decap_len, &used, &more);
|
||||
g_assert (success);
|
||||
g_assert (decap_len == 214);
|
||||
g_assert (used == 221);
|
||||
g_assert (more == FALSE);
|
||||
}
|
||||
|
||||
|
||||
static const char encap_outbuf[] = {
|
||||
0x4b, 0x05, 0x08, 0x00, 0x01, 0xdd, 0x7e
|
||||
};
|
||||
|
||||
void
|
||||
test_utils_encapsulate_buffer (void *f, void *data)
|
||||
{
|
||||
char cmdbuf[10];
|
||||
char outbuf[512];
|
||||
gsize encap_len = 0;
|
||||
|
||||
cmdbuf[0] = 0x4B; /* DIAG_CMD_SUBSYS */
|
||||
cmdbuf[1] = 0x05; /* DIAG_SUBSYS_HDR */
|
||||
cmdbuf[2] = 0x08; /* first byte of DIAG_SUBSYS_HDR_STATE_INFO in LE */
|
||||
cmdbuf[3] = 0x00; /* second byte of DIAG_SUBSYS_HDR_STATE_INFO in LE */
|
||||
|
||||
encap_len = hdlc_encapsulate_buffer (cmdbuf, 4, sizeof (cmdbuf),
|
||||
0, TRUE, FALSE,
|
||||
&outbuf[0], sizeof (outbuf));
|
||||
g_assert (encap_len == sizeof (encap_outbuf));
|
||||
g_assert (memcmp (outbuf, encap_outbuf, encap_len) == 0);
|
||||
}
|
||||
|
||||
static const char cns_inbuf[] = {
|
||||
0x00, 0x0a, 0x6b, 0x74, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||||
0x00, 0x00, 0x7e
|
||||
};
|
||||
|
||||
void
|
||||
test_utils_decapsulate_sierra_cns (void *f, void *data)
|
||||
{
|
||||
gboolean success;
|
||||
char outbuf[512];
|
||||
gsize decap_len = 0;
|
||||
gsize used = 0;
|
||||
gboolean more = FALSE;
|
||||
|
||||
success = hdlc_decapsulate_buffer (cns_inbuf, sizeof (cns_inbuf),
|
||||
outbuf, sizeof (outbuf),
|
||||
&decap_len, &used, &more);
|
||||
g_assert (success == FALSE);
|
||||
}
|
||||
|
||||
@@ -0,0 +1,28 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef TEST_WMC_UTILS_H
|
||||
#define TEST_WMC_UTILS_H
|
||||
|
||||
void test_utils_decapsulate_buffer (void *f, void *data);
|
||||
|
||||
void test_utils_encapsulate_buffer (void *f, void *data);
|
||||
|
||||
void test_utils_decapsulate_sierra_cns (void *f, void *data);
|
||||
|
||||
#endif /* TEST_WMC_UTILS_H */
|
||||
|
||||
@@ -0,0 +1,54 @@
|
||||
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
||||
/*
|
||||
* Copyright (C) 2010 Red Hat, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or
|
||||
* modify it under the terms of version 2 of the GNU General Public
|
||||
* License as published by the Free Software Foundation
|
||||
*
|
||||
* 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <glib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "test-wmc-crc.h"
|
||||
#include "test-wmc-escaping.h"
|
||||
#include "test-wmc-utils.h"
|
||||
|
||||
#if GLIB_CHECK_VERSION(2,25,12)
|
||||
typedef GTestFixtureFunc TCFunc;
|
||||
#else
|
||||
typedef void (*TCFunc)(void);
|
||||
#endif
|
||||
|
||||
#define TESTCASE(t, d) g_test_create_case (#t, 0, d, NULL, (TCFunc) t, NULL)
|
||||
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
GTestSuite *suite;
|
||||
gint result;
|
||||
|
||||
g_test_init (&argc, &argv, NULL);
|
||||
|
||||
suite = g_test_get_root ();
|
||||
g_test_suite_add (suite, TESTCASE (test_crc16_1, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_crc16_2, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_escape1, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_escape2, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_escape_unescape, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_utils_decapsulate_buffer, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_utils_encapsulate_buffer, NULL));
|
||||
g_test_suite_add (suite, TESTCASE (test_utils_decapsulate_sierra_cns, NULL));
|
||||
|
||||
result = g_test_run ();
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
@@ -80,31 +80,74 @@ The protocol is a request/response style protocol though unsolicited responses
|
||||
are sometimes sent from the modem to the host. There does not appear to be any
|
||||
sequence numbering in either the request or response packets. WMC packets
|
||||
always begin with the frame start marker (0xC8). The second byte is the command
|
||||
number. The frame ends with a three-byte trailer including a CRC-16 and a
|
||||
standard HDLC/PPP frame terminator (0x7E), though this terminator is missing in
|
||||
some cases as described below. Thus a normal WMC packet looks like this:
|
||||
number, followed by the frame's data. The frame ends with a three-byte trailer
|
||||
including a CRC-16 and a frame termination marker which differs between devices.
|
||||
Most older devices use the standard HDLC/PPP frame termination marker (0x7E),
|
||||
while some others (UML290) use a different termination marker as described
|
||||
below. Thus a normal WMC packet looks like this:
|
||||
|
||||
0xC8 <command number> <data> <CRC-16> 0x7E
|
||||
|
||||
The entire frame (exclusive of the 0x7E frame terminator) is escaped using
|
||||
standard HDLC/PPP escaping mechanisms to ensure that the bytes 0x7E and 0x7D
|
||||
never appear in the packet.
|
||||
The entire frame (exclusive of the termination marker) is escaped using standard
|
||||
HDLC/PPP escaping mechanisms to ensure that the bytes 0x7E and 0x7D never appear
|
||||
in the packet. Some devices (UML290) escape more than the standard HDLC escape
|
||||
characters.
|
||||
|
||||
Frames can span multiple USB packets. This behavior has been observed with the
|
||||
PC5740 in various responses, in which case the frame is simply split up between
|
||||
USB packets. It has also been observed with some UML290 requests, where it
|
||||
appears that in addition to splitting the frame, each segment after the first
|
||||
is prefixed with 0x20.
|
||||
|
||||
For example, a split response from a PC5740:
|
||||
|
||||
* c8 06 0f 0f 0f 0f 0f 0f 0f 0f 0f 0f 00 00 00 00 ................
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
|
||||
|
||||
* 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
|
||||
|
||||
* 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
|
||||
|
||||
* 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
||||
...
|
||||
00 00 00 01 ....
|
||||
|
||||
|
||||
and an split request from a UML290:
|
||||
|
||||
* c8 56 86 02 00 00 00 00 00 00 39 30 30 30 38 30 .V........900080
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..............
|
||||
|
||||
* 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
||||
|
||||
* 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ...............
|
||||
...
|
||||
00 00 00 00 00 00 00 00 00 00 5b 1c 0d ..........[..
|
||||
|
||||
|
||||
|
||||
Requests
|
||||
---------------
|
||||
|
||||
Requests are usually short, often only 4 or 5 bytes long, including the frame
|
||||
start marker (0xC8), the command number, the CRC, and the frame termination
|
||||
marker. Requests always receive a response from the modem containing the same
|
||||
command number.
|
||||
start marker (0xC8), the command number, the 16-bit CRC, and the frame termination
|
||||
marker. Requests almost always receive a response from the modem containing the
|
||||
same command number.
|
||||
|
||||
The UML290 uses different "AT"-style framing of requests, prefixing the
|
||||
request with "AT*WMC=" and using a frame termination marker of 0x0D instead
|
||||
of the standard 0x7E. The UML290 also uses a different CRC-16 initial seed of
|
||||
0xAAFE instead of the standard 0xFFFF used on other devices and with HDLC
|
||||
framing in general. For added lolz the UML290 HDLC-escapes all control
|
||||
characters in the request instead of only the standard 0x7D and 0x7E characters
|
||||
characters in the request in addition to the standard 0x7D and 0x7E characters
|
||||
escaped in HDLC.
|
||||
|
||||
Thus a normal WMC request (from a PC5740) looks like this:
|
||||
Reference in New Issue
Block a user