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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
*
* Copyright (C) 2013 Google Inc.
*
*/
#include <string.h>
#include <ModemManager.h>
#define _LIBMM_INSIDE_MM
#include <libmm-glib.h>
#include "mm-modem-helpers-altair-lte.h"
/*****************************************************************************/
/* +CEER response parser */
gchar *
mm_altair_parse_ceer_response (const gchar *response,
GError **error)
{
GRegex *r;
GMatchInfo *match_info = NULL;
gchar *ceer_response = NULL;
/* First accept an empty response as the no error case. Sometimes, the only
* respone to the AT+CEER query is an OK.
*/
if (g_strcmp0 ("", response) == 0) {
return g_strdup ("");
}
/* The response we are interested in looks so:
* +CEER: EPS_AND_NON_EPS_SERVICES_NOT_ALLOWED
*/
r = g_regex_new ("\\+CEER:\\s*(\\w*)?",
G_REGEX_RAW,
0, NULL);
g_assert (r != NULL);
if (!g_regex_match (r, response, 0, &match_info)) {
g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Could not parse +CEER response");
g_match_info_free (match_info);
g_regex_unref (r);
return NULL;
}
if (g_match_info_matches (match_info)) {
ceer_response = mm_get_string_unquoted_from_match_info (match_info, 1);
if (!ceer_response)
ceer_response = g_strdup ("");
}
g_match_info_free (match_info);
g_regex_unref (r);
return ceer_response;
}
/*****************************************************************************/
/* %CGINFO="cid",1 response parser */
guint
mm_altair_parse_cid (const gchar *response, GError **error)
{
GRegex *regex;
GMatchInfo *match_info;
guint cid = -1;
regex = g_regex_new ("\\%CGINFO:\\s*(\\d+)", G_REGEX_RAW, 0, NULL);
g_assert (regex);
if (!g_regex_match_full (regex, response, strlen (response), 0, 0, &match_info, error)) {
g_regex_unref (regex);
return -1;
}
if (!mm_get_uint_from_match_info (match_info, 1, &cid))
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Failed to parse %%CGINFO=\"cid\",1 response");
g_match_info_free (match_info);
g_regex_unref (regex);
return cid;
}
/*****************************************************************************/
/* %PCOINFO response parser */
static guint
altair_extract_vzw_pco_value (const gchar *pco_payload, GError **error)
{
GRegex *regex;
GMatchInfo *match_info;
guint pco_value = -1;
/* Extract PCO value from PCO payload.
* The PCO value in the VZW network is after the VZW PLMN (MCC+MNC 311-480).
*/
regex = g_regex_new ("130184(\\d+)", G_REGEX_RAW, 0, NULL);
g_assert (regex);
if (!g_regex_match_full (regex,
pco_payload,
strlen (pco_payload),
0,
0,
&match_info,
error))
return -1;
if (!g_match_info_matches (match_info) ||
!mm_get_uint_from_match_info (match_info, 1, &pco_value))
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Failed to parse PCO value from PCO payload: '%s'",
pco_payload);
g_match_info_free (match_info);
g_regex_unref (regex);
return pco_value;
}
guint
mm_altair_parse_vendor_pco_info (const gchar *pco_info,
guint cid,
GError **error)
{
GRegex *regex;
GMatchInfo *match_info;
guint pco_value = -1;
gint num_matches;
if (!pco_info[0])
/* No APNs configured, all done */
return -1;
/* Expected %PCOINFO response:
*
* Solicited response: %PCOINFO:<mode>,<cid>[,<pcoid>[,<payload>]]
* Unsolicited response: %PCOINFO:<cid>,<pcoid>[,<payload>]
*/
regex = g_regex_new ("\\%PCOINFO:(?:\\s*\\d+\\s*,)?(\\d+)\\s*(,([^,\\)]*),([0-9A-Fa-f]*))?",
G_REGEX_DOLLAR_ENDONLY | G_REGEX_RAW,
0, NULL);
g_assert (regex);
if (!g_regex_match_full (regex, pco_info, strlen (pco_info), 0, 0, &match_info, error))
return -1;
num_matches = g_match_info_get_match_count (match_info);
if (num_matches != 5) {
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Failed to parse substrings, number of matches: %d",
num_matches);
return -1;
}
while (g_match_info_matches (match_info)) {
guint pco_cid;
gchar *pco_id;
gchar *pco_payload;
if (!mm_get_uint_from_match_info (match_info, 1, &pco_cid)) {
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't parse CID from PCO info: '%s'",
pco_info);
break;
}
if (pco_cid != cid) {
g_match_info_next (match_info, error);
continue;
}
pco_id = mm_get_string_unquoted_from_match_info (match_info, 3);
if (!pco_id) {
g_set_error (error,
MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
"Couldn't parse PCO ID from PCO info: '%s'",
pco_info);
break;
}
if (g_strcmp0 (pco_id, "FF00")) {
g_match_info_next (match_info, error);
continue;
}
pco_payload = mm_get_string_unquoted_from_match_info (match_info, 4);
if (!pco_payload) {
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't parse PCO payload from PCO info: '%s'",
pco_info);
break;
}
pco_value = altair_extract_vzw_pco_value (pco_payload, error);
break;
}
g_match_info_free (match_info);
g_regex_unref (regex);
return pco_value;
}
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