libwmc: beginning of bits for WMC-based devices like UML290
This commit is contained in:
Dan Williams
@@ -0,0 +1,2 @@
|
||||
SUBDIRS=src tests
|
||||
|
||||
@@ -0,0 +1,28 @@
|
||||
noinst_LTLIBRARIES = libwmc.la libwmc-test.la
|
||||
|
||||
|
||||
libwmc_la_CPPFLAGS = \
|
||||
$(MM_CFLAGS)
|
||||
|
||||
libwmc_la_SOURCES = \
|
||||
utils.c \
|
||||
utils.h
|
||||
|
||||
libwmc_la_LIBADD = \
|
||||
$(MM_LIBS)
|
||||
|
||||
|
||||
###########################################
|
||||
# Test library without symbol versioning
|
||||
###########################################
|
||||
|
||||
libwmc_test_la_CPPFLAGS = \
|
||||
$(MM_CFLAGS)
|
||||
|
||||
libwmc_test_la_SOURCES = \
|
||||
utils.c \
|
||||
utils.h
|
||||
|
||||
libwmc_test_la_LIBADD = \
|
||||
$(MM_LIBS)
|
||||
|
||||
@@ -0,0 +1,374 @@
|
||||
/* -*- 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 <stdio.h>
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <malloc.h>
|
||||
#include <fcntl.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "utils.h"
|
||||
|
||||
/* QCDM protocol frames are pseudo Async HDLC frames which end with a 3-byte
|
||||
* trailer. This trailer consists of the 16-bit CRC of the frame plus an ending
|
||||
* "async control character" whose value is 0x7E. The frame *and* the CRC are
|
||||
* escaped before adding the trailing control character so that the control
|
||||
* character (0x7E) and the escape marker (0x7D) are never seen in the frame.
|
||||
*/
|
||||
|
||||
/* Table of CRCs for each possible byte, with a generator polynomial of 0x8408 */
|
||||
const guint16 crc_table[256] = {
|
||||
0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
|
||||
0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
|
||||
0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
|
||||
0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
|
||||
0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
|
||||
0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
|
||||
0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
|
||||
0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
|
||||
0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
|
||||
0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
|
||||
0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
|
||||
0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
|
||||
0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
|
||||
0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
|
||||
0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
|
||||
0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
|
||||
0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
|
||||
0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
|
||||
0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
|
||||
0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
|
||||
0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
|
||||
0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
|
||||
0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
|
||||
0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
|
||||
0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
|
||||
0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
|
||||
0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
|
||||
0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
|
||||
0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
|
||||
0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
|
||||
0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
|
||||
0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
|
||||
};
|
||||
|
||||
/* Calculate the CRC for a buffer using a seed of 0xffff */
|
||||
guint16
|
||||
crc16 (const char *buffer, gsize len, guint16 seed)
|
||||
{
|
||||
guint16 crc = seed ? seed : 0xFFFF;
|
||||
|
||||
while (len--)
|
||||
crc = crc_table[(crc ^ *buffer++) & 0xff] ^ (crc >> 8);
|
||||
return ~crc;
|
||||
}
|
||||
|
||||
#define DIAG_ESC_CHAR 0x7D /* Escape sequence 1st character value */
|
||||
#define DIAG_ESC_MASK 0x20 /* Escape sequence complement value */
|
||||
|
||||
/* Performs DM escaping on inbuf putting the result into outbuf, and returns
|
||||
* the final length of the buffer.
|
||||
*/
|
||||
gsize
|
||||
hdlc_escape (const char *inbuf,
|
||||
gsize inbuf_len,
|
||||
gboolean escape_all_ctrl,
|
||||
char *outbuf,
|
||||
gsize outbuf_len)
|
||||
{
|
||||
const char *src = inbuf;
|
||||
char *dst = outbuf;
|
||||
size_t i = inbuf_len;
|
||||
|
||||
g_return_val_if_fail (inbuf != NULL, 0);
|
||||
g_return_val_if_fail (inbuf_len > 0, 0);
|
||||
g_return_val_if_fail (outbuf != NULL, 0);
|
||||
g_return_val_if_fail (outbuf_len > inbuf_len, 0);
|
||||
|
||||
/* Since escaping potentially doubles the # of bytes, short-circuit the
|
||||
* length check if destination buffer is clearly large enough. Note the
|
||||
*
|
||||
*/
|
||||
if (outbuf_len <= inbuf_len << 1) {
|
||||
size_t outbuf_required = inbuf_len + 1; /* +1 for the trailing control char */
|
||||
|
||||
/* Each escaped character takes up two bytes in the output buffer */
|
||||
while (i--) {
|
||||
if ( *src == DIAG_CONTROL_CHAR
|
||||
|| *src == DIAG_ESC_CHAR
|
||||
|| (escape_all_ctrl && *src <= 0x20))
|
||||
outbuf_required++;
|
||||
src++;
|
||||
}
|
||||
|
||||
if (outbuf_len < outbuf_required)
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Do the actual escaping. Replace both the control character and
|
||||
* the escape character in the source buffer with the following sequence:
|
||||
*
|
||||
* <escape_char> <src_byte ^ escape_mask>
|
||||
*/
|
||||
src = inbuf;
|
||||
i = inbuf_len;
|
||||
while (i--) {
|
||||
if ( *src == DIAG_CONTROL_CHAR
|
||||
|| *src == DIAG_ESC_CHAR
|
||||
|| (escape_all_ctrl && *src <= 0x20)) {
|
||||
*dst++ = DIAG_ESC_CHAR;
|
||||
*dst++ = *src ^ DIAG_ESC_MASK;
|
||||
} else
|
||||
*dst++ = *src;
|
||||
src++;
|
||||
}
|
||||
|
||||
return (dst - outbuf);
|
||||
}
|
||||
|
||||
gsize
|
||||
hdlc_unescape (const char *inbuf,
|
||||
gsize inbuf_len,
|
||||
char *outbuf,
|
||||
gsize outbuf_len,
|
||||
gboolean *escaping)
|
||||
{
|
||||
size_t i, outsize;
|
||||
|
||||
g_return_val_if_fail (inbuf_len > 0, 0);
|
||||
g_return_val_if_fail (outbuf_len >= inbuf_len, 0);
|
||||
g_return_val_if_fail (escaping != NULL, 0);
|
||||
|
||||
for (i = 0, outsize = 0; i < inbuf_len; i++) {
|
||||
if (*escaping) {
|
||||
outbuf[outsize++] = inbuf[i] ^ DIAG_ESC_MASK;
|
||||
*escaping = FALSE;
|
||||
} else if (inbuf[i] == DIAG_ESC_CHAR)
|
||||
*escaping = TRUE;
|
||||
else
|
||||
outbuf[outsize++] = inbuf[i];
|
||||
|
||||
/* About to overrun output buffer size */
|
||||
if (outsize >= outbuf_len)
|
||||
return 0;
|
||||
}
|
||||
|
||||
return outsize;
|
||||
}
|
||||
|
||||
/**
|
||||
* hdlc_encapsulate_buffer:
|
||||
* @inbuf: data buffer to encapsulate
|
||||
* @cmd_len: size of the data contained in @inbuf
|
||||
* @inbuf_len: total size of @inbuf itself (not just the data)
|
||||
* @crc_seed: if non-zero, CRC-16 seed to use; if 0, uses standard 0xFFFF
|
||||
* @add_trailer: if %TRUE, adds trailing 0x7E
|
||||
* @escape_all_ctrl: if %TRUE, escapes all control characters instead of only
|
||||
* special HDLC escape characters 0x7D and 0x7E
|
||||
* @outbuf: buffer in which to put the encapsulated data
|
||||
* @outbuf_len: total size of @outbuf
|
||||
*
|
||||
* Escapes and CRCs given data using HDLC-style mechanisms, and optionally adds
|
||||
* the trailing control character that denotes the end of the HDLC frame.
|
||||
*
|
||||
* Returns: size of the encapsulated data writted to @outbuf.
|
||||
**/
|
||||
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)
|
||||
{
|
||||
guint16 crc;
|
||||
gsize escaped_len;
|
||||
|
||||
g_return_val_if_fail (inbuf != NULL, 0);
|
||||
g_return_val_if_fail (cmd_len >= 1, 0);
|
||||
g_return_val_if_fail (inbuf_len >= cmd_len + 2, 0); /* space for CRC */
|
||||
g_return_val_if_fail (outbuf != NULL, 0);
|
||||
|
||||
/* Add the CRC */
|
||||
crc = crc16 (inbuf, cmd_len, crc_seed ? crc_seed : 0xFFFF);
|
||||
inbuf[cmd_len++] = crc & 0xFF;
|
||||
inbuf[cmd_len++] = (crc >> 8) & 0xFF;
|
||||
|
||||
escaped_len = hdlc_escape (inbuf, cmd_len, escape_all_ctrl, outbuf, outbuf_len);
|
||||
g_return_val_if_fail (outbuf_len > escaped_len, 0);
|
||||
|
||||
if (add_trailer)
|
||||
outbuf[escaped_len++] = DIAG_CONTROL_CHAR;
|
||||
|
||||
return escaped_len;
|
||||
}
|
||||
|
||||
#define AT_WMC_PREFIX "AT*WMC="
|
||||
|
||||
/**
|
||||
* uml290_wmc_encapsulate:
|
||||
* @inbuf: data buffer to encapsulate
|
||||
* @cmd_len: size of the data contained in @inbuf
|
||||
* @inbuf_len: total size of @inbuf itself (not just the data)
|
||||
* @outbuf: buffer in which to put the encapsulated data
|
||||
* @outbuf_len: total size of @outbuf
|
||||
*
|
||||
* Escapes and CRCs given data using HDLC-style mechanisms with UML290 specific
|
||||
* quirks.
|
||||
*
|
||||
* Returns: size of the encapsulated data writted to @outbuf.
|
||||
*/
|
||||
gsize
|
||||
uml290_wmc_encapsulate (char *inbuf,
|
||||
gsize cmd_len,
|
||||
gsize inbuf_len,
|
||||
char *outbuf,
|
||||
gsize outbuf_len)
|
||||
{
|
||||
gsize encap_len;
|
||||
gsize estimated_out_len;
|
||||
|
||||
g_return_val_if_fail (inbuf != NULL, 0);
|
||||
g_return_val_if_fail (cmd_len >= 1, 0);
|
||||
g_return_val_if_fail (inbuf_len >= cmd_len + 2, 0); /* space for CRC */
|
||||
g_return_val_if_fail (outbuf != NULL, 0);
|
||||
|
||||
estimated_out_len = inbuf_len + strlen (AT_WMC_PREFIX);
|
||||
estimated_out_len += 3; /* CRC + trailer */
|
||||
estimated_out_len += cmd_len * 1.3; /* escaping */
|
||||
g_return_val_if_fail (outbuf_len > estimated_out_len, 0);
|
||||
|
||||
memcpy (outbuf, AT_WMC_PREFIX, strlen (AT_WMC_PREFIX));
|
||||
|
||||
encap_len = hdlc_encapsulate_buffer (inbuf, cmd_len, inbuf_len, 0xAAFE,
|
||||
FALSE, TRUE,
|
||||
outbuf + strlen (AT_WMC_PREFIX),
|
||||
outbuf_len);
|
||||
if (encap_len > 0) {
|
||||
encap_len += strlen (AT_WMC_PREFIX);
|
||||
outbuf[encap_len++] = 0x0D; /* trailer */
|
||||
}
|
||||
|
||||
return encap_len;
|
||||
}
|
||||
|
||||
/**
|
||||
* hdlc_decapsulate_buffer:
|
||||
* @inbuf: buffer in which to look for an HDLC frame
|
||||
* @inbuf_len: length of valid data in @inbuf
|
||||
* @outbuf: buffer in which to put decapsulated data from the HDLC frame
|
||||
* @outbuf_len: max size of @outbuf
|
||||
* @out_decap_len: on success, size of the decapsulated data
|
||||
* @out_used: on either success or failure, amount of data used; caller should
|
||||
* discard this much data from @inbuf before the next call to this function
|
||||
* @out_need_more: when TRUE, indicates that more data is required before
|
||||
* a determination about a valid HDLC frame can be made; caller should add
|
||||
* more data to @inbuf before calling this function again.
|
||||
*
|
||||
* Attempts to retrieve, unescape, and CRC-check an HDLC frame from the given
|
||||
* buffer.
|
||||
*
|
||||
* Returns: FALSE on error (packet was invalid or malformed, or the CRC check
|
||||
* failed, etc) and places number of bytes to discard from @inbuf in @out_used.
|
||||
* When TRUE, either more data is required (in which case @out_need_more will
|
||||
* be TRUE), or a data packet was successfully retrieved from @inbuf and the
|
||||
* decapsulated packet of length @out_decap_len was placed into @outbuf. In
|
||||
* all cases the caller should advance the buffer by the number of bytes
|
||||
* returned in @out_used before calling this function again.
|
||||
**/
|
||||
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)
|
||||
{
|
||||
gboolean escaping = FALSE;
|
||||
gsize i, pkt_len = 0, unesc_len;
|
||||
guint16 crc, pkt_crc;
|
||||
|
||||
g_return_val_if_fail (inbuf != NULL, FALSE);
|
||||
g_return_val_if_fail (outbuf != NULL, FALSE);
|
||||
g_return_val_if_fail (outbuf_len > 0, FALSE);
|
||||
g_return_val_if_fail (out_decap_len != NULL, FALSE);
|
||||
g_return_val_if_fail (out_used != NULL, FALSE);
|
||||
g_return_val_if_fail (out_need_more != NULL, FALSE);
|
||||
|
||||
*out_decap_len = 0;
|
||||
*out_used = 0;
|
||||
*out_need_more = FALSE;
|
||||
|
||||
if (inbuf_len < 4) {
|
||||
*out_need_more = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Find the async control character */
|
||||
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 */
|
||||
*out_used = i + 1;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
pkt_len = i;
|
||||
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;
|
||||
}
|
||||
|
||||
@@ -0,0 +1,206 @@
|
||||
This document describes information about the Pantech UML290 and the WMC
|
||||
protocol observed through USB packet capture and other investigation.
|
||||
|
||||
|
||||
Pantech UML290 Notes
|
||||
--------------------------------------
|
||||
|
||||
This device exposes 4 USB interfaces. They are, in no particular order, a
|
||||
CDC-ACM compatible AT command port, a QCDM/Diag port, an WMC port, and a
|
||||
raw IP network port. The modem's native command interface is the WMC port
|
||||
which the Windows driver uses for all normal communication.
|
||||
|
||||
|
||||
CDC-ACM AT Port
|
||||
----------------
|
||||
|
||||
The modem's +GCAP response reports:
|
||||
|
||||
+GCAP: +CIS707-A, CIS-856, CIS-856-A, +CGSM, +CLTE1
|
||||
|
||||
and with recent firmware updates (L0290VWB333F.230 [Mar 15 2011 15:03:20] or
|
||||
later) the device does, in fact, appear to support common IS-707-A and ETSI
|
||||
27.007 GSM and LTE AT commands. This interface does support PPP data but when
|
||||
PPP is used the device does not support handoffs between LTE and EVDO.
|
||||
|
||||
To support seamless operation of devices between LTE and EVDO Verizon has
|
||||
upgraded their network to support the eHRPD protocol. Older, non-LTE capable
|
||||
devices usually do not include support for eHRPD and use the standard HRPD
|
||||
protocols. LTE-capable devices support both eHRPD and standard HRPD, but at
|
||||
least with the UML290, connections to the 3G EVDO network using direct PPP over
|
||||
the AT modem port do not use eHRPD. Thus to successfully connect to the 3G
|
||||
EVDO network, the modem must be switched into standard HRPD mode by changing
|
||||
the value of the NV_HDRSCP_FORCE_AT_CONFIG_I NVRAM item using the the QCDM/Diag
|
||||
port and the DIAG protocol. Use of HRPD only prevents connections to the LTE
|
||||
network. It is possible that connections initiated using the WMC port and
|
||||
utilizing the "raw IP" network interface do not have this problem.
|
||||
|
||||
|
||||
QCDM/Diag Port
|
||||
----------------
|
||||
|
||||
This port is a normal QCDM/Diag port and responds to DIAG commands.
|
||||
|
||||
|
||||
Raw IP Network Port
|
||||
-------------------
|
||||
|
||||
This USB interface is the normal network interface port the device uses in
|
||||
Windows for network communication. It appears to operate in a "raw IP" mode
|
||||
where raw IP packets are sent and received over USB with no additional framing
|
||||
or encapsulation. The IPv4 and IPv6 addresses for the interface are determined
|
||||
using WMC commands on the WMC port, not through the AT command port. The AT
|
||||
command port only supports PPP-based communication. More information about the
|
||||
"raw IP" mode may be available in the Qualcomm CodeAurora SMD/QMI drivers which
|
||||
implement a "raw IP" network communication mode for various MSM7xxx chipsets
|
||||
used in Android devices.
|
||||
|
||||
|
||||
WMC Port
|
||||
-----------
|
||||
|
||||
This port accepts and responds to WMC protocol requests. Instead of using plain
|
||||
WMC however, requests are prefixed with the string "AT*WMC=" and terminated with
|
||||
a newline (0x0D) character instead of the normal WMC frame termination
|
||||
character (0x7E). The data in between is normal binary WMC data, except that
|
||||
all bytes less than 0x20 are escaped using normal HDLC/PPP escaping while a
|
||||
normal WMC request would only escape the special HDLC/PPP characters of 0x7E and
|
||||
0x7D. Thus a UML290 request looks like this in hexadecimal:
|
||||
|
||||
41542a574d433dc87d2a87b80d
|
||||
|
||||
This "AT"-style framing has not been observed on other devices.
|
||||
|
||||
|
||||
|
||||
WMC Protocol Framing
|
||||
--------------------
|
||||
|
||||
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, 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 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 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 in addition to the standard 0x7D and 0x7E characters
|
||||
escaped in HDLC.
|
||||
|
||||
Thus a normal WMC request (from a PC5740) looks like this:
|
||||
|
||||
c8 0a 77 a4 7e
|
||||
<frame start> <cmd no> <CRC-16> <terminator>
|
||||
|
||||
while the same request from the UML290 looks like this:
|
||||
|
||||
41542a574d433d c8 7d2a 87 b8 0d
|
||||
<AT*WMC=> <frame start> <cmd no> <CRC-16> <terminator>
|
||||
|
||||
Thus after removing all framing and escaping, this WMC request is a single
|
||||
byte (0x0A) which indicates the command number of the request.
|
||||
|
||||
|
||||
WMC Responses and Unsolicited Messages
|
||||
--------------------------------------
|
||||
|
||||
Responses begin with the WMC frame start marker (0xC8) and end with the standard
|
||||
HDLC/PPP frame terminator (0x7E) in all observed cases, even on the UML290.
|
||||
The data in between is HDLC/PPP escaped and there is a CRC-16 before the frame
|
||||
terminator. Not all devices use the same CRC-16 calculation however; the
|
||||
UML290 always uses a CRC-16 of 0x3030, while the PC5740 includes a valid CRC-16
|
||||
using a standard polynomial of 0x8408 and an initial seed of 0xFFFF. Responses
|
||||
may span multiple USB packets if they are large enough, but the frame terminator
|
||||
provides a convenient mechanism for detecting when the frame is complete.
|
||||
|
||||
A standard WMC response (from a UML290) looks like this:
|
||||
|
||||
c80d0000000030307e
|
||||
|
||||
which translates to:
|
||||
|
||||
c8 0d 00 00 00 00
|
||||
|
||||
|
||||
WMC Command Numbers
|
||||
-------------------
|
||||
|
||||
These command numbers have been observed and minimally investigated:
|
||||
|
||||
0x06: request device information, including manufacturer, model, firmware
|
||||
revision, hardware revision, MCC/MNC, serial number
|
||||
|
||||
0x0A: request IP configuration when connected (IPv4 and IPv6) on the UML290; may
|
||||
include elapsed connected time or traffic byte counts too. Request has
|
||||
been observed on the PC5740 but is significantly shorter.
|
||||
|
||||
0x0B: get status including operator name, RSSI dBm, and possibly registration
|
||||
status
|
||||
|
||||
0x13: retrieve SMS messages
|
||||
|
||||
0x4D: appears to request EPS bearer configuration; response includes the APN
|
||||
|
||||
Reference in New Issue
Block a user