7de6b6f2e1
g_match_info_free() already check if the given pointer is NULL and does nothing on a NULL pointer.
670 lines
21 KiB
C
670 lines
21 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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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* Copyright (C) 2016 Trimble Navigation Limited
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* Copyright (C) 2014 Aleksander Morgado <aleksander@aleksander.es>
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* Contributor: Matthew Stanger <matthew_stanger@trimble.com>
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*/
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#include <config.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "ModemManager.h"
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#define _LIBMM_INSIDE_MM
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#include <libmm-glib.h>
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#include "mm-log.h"
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#include "mm-charsets.h"
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#include "mm-errors-types.h"
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#include "mm-modem-helpers-cinterion.h"
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#include "mm-modem-helpers.h"
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/* Setup relationship between the 3G band bitmask in the modem and the bitmask
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* in ModemManager. */
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typedef struct {
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guint32 cinterion_band_flag;
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MMModemBand mm_band;
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} CinterionBand;
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/* Table checked in PLS8-X/E/J/V/US, HC25 & PHS8 references. The table includes 2/3/4G
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* frequencies. Depending on which one is configured, one access technology or
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* the other will be used. This may conflict with the allowed mode configuration
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* set, so you shouldn't for example set 3G frequency bands, and then use a
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* 2G-only allowed mode. */
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static const CinterionBand cinterion_bands[] = {
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{ (1 << 0), MM_MODEM_BAND_EGSM },
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{ (1 << 1), MM_MODEM_BAND_DCS },
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{ (1 << 2), MM_MODEM_BAND_G850 },
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{ (1 << 3), MM_MODEM_BAND_PCS },
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{ (1 << 4), MM_MODEM_BAND_UTRAN_1 },
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{ (1 << 5), MM_MODEM_BAND_UTRAN_2 },
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{ (1 << 6), MM_MODEM_BAND_UTRAN_5 },
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{ (1 << 7), MM_MODEM_BAND_UTRAN_8 },
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{ (1 << 8), MM_MODEM_BAND_UTRAN_6 },
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{ (1 << 9), MM_MODEM_BAND_UTRAN_4 },
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{ (1 << 10), MM_MODEM_BAND_UTRAN_19 },
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{ (1 << 12), MM_MODEM_BAND_UTRAN_3 },
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{ (1 << 13), MM_MODEM_BAND_EUTRAN_1 },
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{ (1 << 14), MM_MODEM_BAND_EUTRAN_2 },
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{ (1 << 15), MM_MODEM_BAND_EUTRAN_3 },
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{ (1 << 16), MM_MODEM_BAND_EUTRAN_4 },
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{ (1 << 17), MM_MODEM_BAND_EUTRAN_5 },
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{ (1 << 18), MM_MODEM_BAND_EUTRAN_7 },
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{ (1 << 19), MM_MODEM_BAND_EUTRAN_8 },
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{ (1 << 20), MM_MODEM_BAND_EUTRAN_17 },
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{ (1 << 21), MM_MODEM_BAND_EUTRAN_20 },
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{ (1 << 22), MM_MODEM_BAND_EUTRAN_13 },
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{ (1 << 24), MM_MODEM_BAND_EUTRAN_19 }
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};
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/* Check valid combinations in 2G-only devices */
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#define VALIDATE_2G_BAND(cinterion_mask) \
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(cinterion_mask == 1 || \
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cinterion_mask == 2 || \
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cinterion_mask == 4 || \
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cinterion_mask == 8 || \
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cinterion_mask == 3 || \
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cinterion_mask == 5 || \
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cinterion_mask == 10 || \
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cinterion_mask == 12 || \
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cinterion_mask == 15)
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/*****************************************************************************/
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/* ^SCFG (3G) test parser
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*
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* Example:
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* AT^SCFG=?
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* ...
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* ^SCFG: "MEShutdown/OnIgnition",("on","off")
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* ^SCFG: "Radio/Band",("1-511","0-1")
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* ^SCFG: "Radio/NWSM",("0","1","2")
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* ...
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*
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* ^SCFG: "Radio/Band\",("1"-"147")
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*/
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gboolean
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mm_cinterion_parse_scfg_test (const gchar *response,
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MMModemCharset charset,
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GArray **supported_bands,
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GError **error)
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{
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GRegex *r;
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GMatchInfo *match_info;
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GError *inner_error = NULL;
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GArray *bands = NULL;
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if (!response) {
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g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Missing response");
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return FALSE;
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}
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r = g_regex_new ("\\^SCFG:\\s*\"Radio/Band\",\\((?:\")?([0-9]*)(?:\")?-(?:\")?([0-9]*)(?:\")?.*\\)",
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G_REGEX_DOLLAR_ENDONLY | G_REGEX_RAW,
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0, NULL);
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g_assert (r != NULL);
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g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, &inner_error);
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if (!inner_error && g_match_info_matches (match_info)) {
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gchar *maxbandstr;
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guint maxband = 0;
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maxbandstr = mm_get_string_unquoted_from_match_info (match_info, 2);
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if (maxbandstr) {
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/* Handle charset conversion if the number is given in UCS2 */
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if (charset != MM_MODEM_CHARSET_UNKNOWN)
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maxbandstr = mm_charset_take_and_convert_to_utf8 (maxbandstr, charset);
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mm_get_uint_from_str (maxbandstr, &maxband);
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}
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if (maxband == 0) {
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inner_error = g_error_new (MM_CORE_ERROR,
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MM_CORE_ERROR_FAILED,
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"Couldn't parse ^SCFG=? response");
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} else {
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guint i;
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for (i = 0; i < G_N_ELEMENTS (cinterion_bands); i++) {
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if (maxband & cinterion_bands[i].cinterion_band_flag) {
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if (G_UNLIKELY (!bands))
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bands = g_array_sized_new (FALSE, FALSE, sizeof (MMModemBand), 9);
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g_array_append_val (bands, cinterion_bands[i].mm_band);
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}
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}
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}
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g_free (maxbandstr);
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}
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g_match_info_free (match_info);
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g_regex_unref (r);
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if (!bands)
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inner_error = g_error_new (MM_CORE_ERROR,
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MM_CORE_ERROR_FAILED,
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"No valid bands found in ^SCFG=? response");
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if (inner_error) {
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g_propagate_error (error, inner_error);
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return FALSE;
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}
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g_assert (bands != NULL && bands->len > 0);
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*supported_bands = bands;
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return TRUE;
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}
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/*****************************************************************************/
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/* ^SCFG response parser
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*
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* Example (3G):
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* AT^SCFG="Radio/Band"
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* ^SCFG: "Radio/Band",127
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*
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* Example (2G, UCS-2):
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* AT+SCFG="Radio/Band"
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* ^SCFG: "Radio/Band","0031","0031"
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*
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* Example (2G):
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* AT+SCFG="Radio/Band"
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* ^SCFG: "Radio/Band","3","3"
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*/
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gboolean
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mm_cinterion_parse_scfg_response (const gchar *response,
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MMModemCharset charset,
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GArray **current_bands,
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GError **error)
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{
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GRegex *r;
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GMatchInfo *match_info;
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GError *inner_error = NULL;
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GArray *bands = NULL;
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if (!response) {
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g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Missing response");
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return FALSE;
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}
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r = g_regex_new ("\\^SCFG:\\s*\"Radio/Band\",\\s*\"?([0-9a-fA-F]*)\"?", 0, 0, NULL);
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g_assert (r != NULL);
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if (g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, NULL)) {
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gchar *currentstr;
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guint current = 0;
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currentstr = mm_get_string_unquoted_from_match_info (match_info, 1);
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if (currentstr) {
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/* Handle charset conversion if the number is given in UCS2 */
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if (charset != MM_MODEM_CHARSET_UNKNOWN)
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currentstr = mm_charset_take_and_convert_to_utf8 (currentstr, charset);
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mm_get_uint_from_str (currentstr, ¤t);
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}
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if (current == 0) {
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inner_error = g_error_new (MM_CORE_ERROR,
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MM_CORE_ERROR_FAILED,
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"Couldn't parse ^SCFG response");
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} else {
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guint i;
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for (i = 0; i < G_N_ELEMENTS (cinterion_bands); i++) {
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if (current & cinterion_bands[i].cinterion_band_flag) {
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if (G_UNLIKELY (!bands))
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bands = g_array_sized_new (FALSE, FALSE, sizeof (MMModemBand), 9);
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g_array_append_val (bands, cinterion_bands[i].mm_band);
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}
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}
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}
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g_free (currentstr);
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}
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g_match_info_free (match_info);
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g_regex_unref (r);
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if (!bands)
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inner_error = g_error_new (MM_CORE_ERROR,
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MM_CORE_ERROR_FAILED,
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"No valid bands found in ^SCFG response");
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if (inner_error) {
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g_propagate_error (error, inner_error);
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return FALSE;
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}
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g_assert (bands != NULL && bands->len > 0);
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*current_bands = bands;
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return TRUE;
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}
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/*****************************************************************************/
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/* +CNMI test parser
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*
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* Example (PHS8):
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* AT+CNMI=?
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* +CNMI: (0,1,2),(0,1),(0,2),(0),(1)
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*/
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gboolean
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mm_cinterion_parse_cnmi_test (const gchar *response,
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GArray **supported_mode,
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GArray **supported_mt,
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GArray **supported_bm,
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GArray **supported_ds,
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GArray **supported_bfr,
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GError **error)
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{
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GRegex *r;
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GMatchInfo *match_info;
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GError *inner_error = NULL;
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GArray *tmp_supported_mode = NULL;
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GArray *tmp_supported_mt = NULL;
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GArray *tmp_supported_bm = NULL;
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GArray *tmp_supported_ds = NULL;
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GArray *tmp_supported_bfr = NULL;
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if (!response) {
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g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Missing response");
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return FALSE;
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}
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r = g_regex_new ("\\+CNMI:\\s*\\((.*)\\),\\((.*)\\),\\((.*)\\),\\((.*)\\),\\((.*)\\)",
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G_REGEX_DOLLAR_ENDONLY | G_REGEX_RAW,
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0, NULL);
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g_assert (r != NULL);
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g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, &inner_error);
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if (!inner_error && g_match_info_matches (match_info)) {
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if (supported_mode) {
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gchar *str;
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str = mm_get_string_unquoted_from_match_info (match_info, 1);
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tmp_supported_mode = mm_parse_uint_list (str, &inner_error);
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g_free (str);
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if (inner_error)
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goto out;
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}
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if (supported_mt) {
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gchar *str;
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str = mm_get_string_unquoted_from_match_info (match_info, 2);
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tmp_supported_mt = mm_parse_uint_list (str, &inner_error);
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g_free (str);
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if (inner_error)
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goto out;
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}
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if (supported_bm) {
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gchar *str;
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str = mm_get_string_unquoted_from_match_info (match_info, 3);
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tmp_supported_bm = mm_parse_uint_list (str, &inner_error);
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g_free (str);
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if (inner_error)
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goto out;
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}
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if (supported_ds) {
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gchar *str;
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str = mm_get_string_unquoted_from_match_info (match_info, 4);
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tmp_supported_ds = mm_parse_uint_list (str, &inner_error);
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g_free (str);
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if (inner_error)
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goto out;
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}
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if (supported_bfr) {
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gchar *str;
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str = mm_get_string_unquoted_from_match_info (match_info, 5);
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tmp_supported_bfr = mm_parse_uint_list (str, &inner_error);
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g_free (str);
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if (inner_error)
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goto out;
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}
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}
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out:
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g_match_info_free (match_info);
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g_regex_unref (r);
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if (inner_error) {
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g_clear_pointer (&tmp_supported_mode, g_array_unref);
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g_clear_pointer (&tmp_supported_mt, g_array_unref);
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g_clear_pointer (&tmp_supported_bm, g_array_unref);
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g_clear_pointer (&tmp_supported_ds, g_array_unref);
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g_clear_pointer (&tmp_supported_bfr, g_array_unref);
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g_propagate_error (error, inner_error);
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return FALSE;
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}
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if (supported_mode)
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*supported_mode = tmp_supported_mode;
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if (supported_mt)
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*supported_mt = tmp_supported_mt;
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if (supported_bm)
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*supported_bm = tmp_supported_bm;
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if (supported_ds)
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*supported_ds = tmp_supported_ds;
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if (supported_bfr)
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*supported_bfr = tmp_supported_bfr;
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return TRUE;
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}
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/*****************************************************************************/
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/* Build Cinterion-specific band value */
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gboolean
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mm_cinterion_build_band (GArray *bands,
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guint supported,
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gboolean only_2g,
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guint *out_band,
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GError **error)
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{
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guint band = 0;
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/* The special case of ANY should be treated separately. */
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if (bands->len == 1 && g_array_index (bands, MMModemBand, 0) == MM_MODEM_BAND_ANY) {
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band = supported;
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} else {
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guint i;
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for (i = 0; i < G_N_ELEMENTS (cinterion_bands); i++) {
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guint j;
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for (j = 0; j < bands->len; j++) {
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if (g_array_index (bands, MMModemBand, j) == cinterion_bands[i].mm_band) {
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band |= cinterion_bands[i].cinterion_band_flag;
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break;
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}
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}
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}
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/* 2G-only modems only support a subset of the possible band
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* combinations. Detect it early and error out.
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*/
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if (only_2g && !VALIDATE_2G_BAND (band))
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band = 0;
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}
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if (band == 0) {
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gchar *bands_string;
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bands_string = mm_common_build_bands_string ((MMModemBand *)bands->data, bands->len);
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g_set_error (error,
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MM_CORE_ERROR,
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MM_CORE_ERROR_FAILED,
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"The given band combination is not supported: '%s'",
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bands_string);
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g_free (bands_string);
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return FALSE;
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}
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*out_band = band;
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return TRUE;
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}
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/*****************************************************************************/
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/* Single ^SIND response parser */
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gboolean
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mm_cinterion_parse_sind_response (const gchar *response,
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gchar **description,
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guint *mode,
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guint *value,
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GError **error)
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{
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GRegex *r;
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GMatchInfo *match_info;
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guint errors = 0;
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if (!response) {
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g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Missing response");
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return FALSE;
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}
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r = g_regex_new ("\\^SIND:\\s*(.*),(\\d+),(\\d+)(\\r\\n)?", 0, 0, NULL);
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g_assert (r != NULL);
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if (g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, NULL)) {
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if (description) {
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*description = mm_get_string_unquoted_from_match_info (match_info, 1);
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if (*description == NULL)
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errors++;
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}
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if (mode && !mm_get_uint_from_match_info (match_info, 2, mode))
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errors++;
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if (value && !mm_get_uint_from_match_info (match_info, 3, value))
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errors++;
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} else
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errors++;
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g_match_info_free (match_info);
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g_regex_unref (r);
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if (errors > 0) {
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g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Failed parsing ^SIND response");
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return FALSE;
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}
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return TRUE;
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}
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/*****************************************************************************/
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/* ^SWWAN read parser
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*
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* Description: Parses <cid>, <state>[, <WWAN adapter>] or CME ERROR from SWWAN.
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*
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* The method returns a MMSwwanState with the connection status of a single
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* PDP context, the one being queried via the cid given as input.
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*
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* Note that we use CID for matching because the WWAN adapter field is optional
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* it seems.
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*
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* Read Command
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* AT^SWWAN?
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* Response(s)
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* [^SWWAN: <cid>, <state>[, <WWAN adapter>]]
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* [^SWWAN: ...]
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* OK
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* ERROR
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* +CME ERROR: <err>
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*
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* Examples:
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* OK - If no WWAN connection is active, then read command just returns OK
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* ^SWWAN: 3,1,1 - 3rd PDP Context, Activated, First WWAN Adaptor
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* +CME ERROR: ? -
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*/
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enum {
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MM_SWWAN_STATE_DISCONNECTED = 0,
|
|
MM_SWWAN_STATE_CONNECTED = 1,
|
|
};
|
|
|
|
MMBearerConnectionStatus
|
|
mm_cinterion_parse_swwan_response (const gchar *response,
|
|
guint cid,
|
|
GError **error)
|
|
{
|
|
GRegex *r;
|
|
GMatchInfo *match_info;
|
|
GError *inner_error = NULL;
|
|
MMBearerConnectionStatus status;
|
|
|
|
g_assert (response);
|
|
|
|
/* If no WWAN connection is active, then ^SWWAN read command just returns OK
|
|
* (which we receive as an empty string) */
|
|
if (!response[0])
|
|
return MM_BEARER_CONNECTION_STATUS_DISCONNECTED;
|
|
|
|
if (!g_str_has_prefix (response, "^SWWAN:")) {
|
|
g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
|
|
"Couldn't parse ^SWWAN response: '%s'", response);
|
|
return MM_BEARER_CONNECTION_STATUS_UNKNOWN;
|
|
}
|
|
|
|
r = g_regex_new ("\\^SWWAN:\\s*(\\d+),\\s*(\\d+)(?:,\\s*(\\d+))?(?:\\r\\n)?",
|
|
G_REGEX_DOLLAR_ENDONLY | G_REGEX_RAW, 0, NULL);
|
|
g_assert (r != NULL);
|
|
|
|
status = MM_BEARER_CONNECTION_STATUS_UNKNOWN;
|
|
g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, &inner_error);
|
|
while (!inner_error && g_match_info_matches (match_info)) {
|
|
guint read_state;
|
|
guint read_cid;
|
|
|
|
if (!mm_get_uint_from_match_info (match_info, 1, &read_cid))
|
|
mm_warn ("Couldn't read cid in ^SWWAN response: '%s'", response);
|
|
else if (!mm_get_uint_from_match_info (match_info, 2, &read_state))
|
|
mm_warn ("Couldn't read state in ^SWWAN response: '%s'", response);
|
|
else if (read_cid == cid) {
|
|
if (read_state == MM_SWWAN_STATE_CONNECTED) {
|
|
status = MM_BEARER_CONNECTION_STATUS_CONNECTED;
|
|
break;
|
|
}
|
|
if (read_state == MM_SWWAN_STATE_DISCONNECTED) {
|
|
status = MM_BEARER_CONNECTION_STATUS_DISCONNECTED;
|
|
break;
|
|
}
|
|
mm_warn ("Invalid state read in ^SWWAN response: %u", read_state);
|
|
break;
|
|
}
|
|
g_match_info_next (match_info, &inner_error);
|
|
}
|
|
|
|
g_match_info_free (match_info);
|
|
g_regex_unref (r);
|
|
|
|
if (status == MM_BEARER_CONNECTION_STATUS_UNKNOWN)
|
|
g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
|
|
"No state returned for CID %u", cid);
|
|
|
|
return status;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* ^SMONG response parser */
|
|
|
|
static MMModemAccessTechnology
|
|
get_access_technology_from_smong_gprs_status (guint gprs_status,
|
|
GError **error)
|
|
{
|
|
switch (gprs_status) {
|
|
case 0:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
|
|
case 1:
|
|
case 2:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_GPRS;
|
|
case 3:
|
|
case 4:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_EDGE;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_set_error (error,
|
|
MM_CORE_ERROR,
|
|
MM_CORE_ERROR_INVALID_ARGS,
|
|
"Couldn't get network capabilities, "
|
|
"unsupported GPRS status value: '%u'",
|
|
gprs_status);
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
|
|
}
|
|
|
|
gboolean
|
|
mm_cinterion_parse_smong_response (const gchar *response,
|
|
MMModemAccessTechnology *access_tech,
|
|
GError **error)
|
|
{
|
|
GError *inner_error = NULL;
|
|
GMatchInfo *match_info = NULL;
|
|
GRegex *regex;
|
|
|
|
/* The AT^SMONG command returns a cell info table, where the second
|
|
* column identifies the "GPRS status", which is exactly what we want.
|
|
* So we'll try to read that second number in the values row.
|
|
*
|
|
* AT^SMONG
|
|
* GPRS Monitor
|
|
* BCCH G PBCCH PAT MCC MNC NOM TA RAC # Cell #
|
|
* 0776 1 - - 214 03 2 00 01
|
|
* OK
|
|
*/
|
|
regex = g_regex_new (".*GPRS Monitor(?:\r\n)*"
|
|
"BCCH\\s*G.*\\r\\n"
|
|
"\\s*(\\d+)\\s*(\\d+)\\s*",
|
|
G_REGEX_DOLLAR_ENDONLY | G_REGEX_RAW,
|
|
0, NULL);
|
|
g_assert (regex);
|
|
|
|
if (g_regex_match_full (regex, response, strlen (response), 0, 0, &match_info, &inner_error)) {
|
|
guint value = 0;
|
|
|
|
if (!mm_get_uint_from_match_info (match_info, 2, &value))
|
|
inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
|
|
"Couldn't read 'GPRS status' field from AT^SMONG response");
|
|
else if (access_tech)
|
|
*access_tech = get_access_technology_from_smong_gprs_status (value, &inner_error);
|
|
}
|
|
|
|
g_match_info_free (match_info);
|
|
g_regex_unref (regex);
|
|
|
|
if (inner_error) {
|
|
g_propagate_error (error, inner_error);
|
|
return FALSE;
|
|
}
|
|
|
|
g_assert (access_tech != MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN);
|
|
return TRUE;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/* ^SIND psinfo helper */
|
|
|
|
MMModemAccessTechnology
|
|
mm_cinterion_get_access_technology_from_sind_psinfo (guint val)
|
|
{
|
|
switch (val) {
|
|
case 0:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
|
|
case 1:
|
|
case 2:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_GPRS;
|
|
case 3:
|
|
case 4:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_EDGE;
|
|
case 5:
|
|
case 6:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_UMTS;
|
|
case 7:
|
|
case 8:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_HSDPA;
|
|
case 9:
|
|
case 10:
|
|
return (MM_MODEM_ACCESS_TECHNOLOGY_HSDPA | MM_MODEM_ACCESS_TECHNOLOGY_HSUPA);
|
|
case 16:
|
|
case 17:
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_LTE;
|
|
default:
|
|
mm_dbg ("Unable to identify access technology from psinfo reported value: %u", val);
|
|
return MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
|
|
}
|
|
}
|