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-rw-r--r--src/mm-modem-helpers.c136
-rw-r--r--src/mm-modem-helpers.h5
-rw-r--r--src/tests/test-modem-helpers.c96
3 files changed, 237 insertions, 0 deletions
diff --git a/src/mm-modem-helpers.c b/src/mm-modem-helpers.c
index 772a2de8..4f0c6248 100644
--- a/src/mm-modem-helpers.c
+++ b/src/mm-modem-helpers.c
@@ -2937,6 +2937,110 @@ out:
}
/*************************************************************************/
+
+#define CBS_MAX_CHANNEL G_MAXUINT16
+
+GArray *
+mm_3gpp_parse_cscb_response (const char *response, GError **error)
+{
+ g_autoptr(GRegex) r = NULL;
+ g_autoptr(GMatchInfo) match_info = NULL;
+ GError *inner_error = NULL;
+ gsize len;
+ g_autoptr (GArray) array = g_array_new (FALSE, FALSE, sizeof (MMCellBroadcastChannels));
+ g_autofree char *str = NULL;
+ g_auto (GStrv) intervals = NULL;
+ int i;
+
+ len = strlen (response);
+ if (!len) {
+ inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS, "empty channel list");
+ goto out;
+ }
+
+ /*
+ * AT+CSCB=[0|1],"<channels>","<coding-scheme>"
+ */
+ r = g_regex_new ("\\+CSCB:\\s*"
+ "(\\d),\\s*" /* [0|1] */
+ "\"([\\d,\\-]*)\"," /* channel list */
+ "\"\"", /* encodings */
+ G_REGEX_NEWLINE_CRLF,
+ 0,
+ NULL);
+ g_assert (r != NULL);
+
+ g_regex_match_full (r, response, -1, 0, 0, &match_info, &inner_error);
+ if (inner_error)
+ goto out;
+
+ if (!g_match_info_matches (match_info)) {
+ inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_FAILED, "Couldn't match CSCB response");
+ goto out;
+ }
+
+ str = g_match_info_fetch (match_info, 1);
+ if (!g_str_equal (str, "0")) {
+ inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
+ "Couldn't match type of CSCB response: '%s'", str);
+ goto out;
+ }
+
+ str = g_match_info_fetch (match_info, 2);
+ intervals = g_strsplit (str, ",", -1);
+ for (i = 0; intervals[i]; i++) {
+ gchar *interval_separator;
+
+ g_strstrip (intervals[i]);
+ interval_separator = strstr (intervals[i], "-");
+ if (interval_separator) {
+ /* Add an interval */
+ gchar *end;
+ g_autofree gchar *start = NULL;
+ MMCellBroadcastChannels channels;
+
+ start = g_strdup (intervals[i]);
+ interval_separator = strstr (start, "-");
+ *(interval_separator++) = '\0';
+ end = interval_separator;
+
+ if (mm_get_uint_from_str (start, &channels.start) &&
+ mm_get_uint_from_str (end, &channels.end) &&
+ channels.start <= channels.end &&
+ channels.end <= CBS_MAX_CHANNEL)
+ g_array_append_val (array, channels);
+ else {
+ inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
+ "Couldn't parse CSCB interval '%s'", intervals[i]);
+ goto out;
+ }
+ } else {
+ guint channel;
+
+ /* Add single value */
+ if (mm_get_uint_from_str (intervals[i], &channel)) {
+ MMCellBroadcastChannels channels = {
+ .start = channel,
+ .end = channel
+ };
+ g_array_append_val (array, channels);
+ } else {
+ inner_error = g_error_new (MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
+ "Couldn't parse CSCB value '%s'", intervals[i]);
+ goto out;
+ }
+ }
+ }
+
+ return g_steal_pointer (&array);
+
+ out:
+ g_assert (inner_error);
+ g_propagate_error (error, inner_error);
+ return NULL;
+}
+
+/*************************************************************************/
/* CGATT helpers */
gchar *
@@ -5201,6 +5305,38 @@ out:
/*****************************************************************************/
gboolean
+mm_validate_cbs_channels (GArray *channels, GError **error)
+{
+ guint i;
+
+ for (i = 0; i < channels->len; i++) {
+ MMCellBroadcastChannels ch = g_array_index (channels, MMCellBroadcastChannels, i);
+
+ if (ch.end < ch.start) {
+ g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS,
+ "Invalid channels: End channel smaller than start channel");
+ return FALSE;
+ }
+
+ if (ch.start > CBS_MAX_CHANNEL) {
+ g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS,
+ "Invalid channels: Start channel %u too large", ch.start);
+ return FALSE;
+ }
+
+ if (ch.end > CBS_MAX_CHANNEL) {
+ g_set_error (error, MM_CORE_ERROR, MM_CORE_ERROR_INVALID_ARGS,
+ "Invalid channels: End channel %u too large", ch.end);
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+/*****************************************************************************/
+
+gboolean
mm_sim_parse_cpol_query_response (const gchar *response,
guint *out_index,
gchar **out_operator_code,
diff --git a/src/mm-modem-helpers.h b/src/mm-modem-helpers.h
index f4b2ae8b..133c7006 100644
--- a/src/mm-modem-helpers.h
+++ b/src/mm-modem-helpers.h
@@ -418,6 +418,8 @@ gboolean mm_3gpp_parse_ccwa_service_query_response (const gchar *response,
gboolean *status,
GError **error);
+GArray *mm_3gpp_parse_cscb_response (const char *raw, GError **error);
+
/* CGATT helpers */
gchar *mm_3gpp_build_cgatt_set_request (MMModem3gppPacketServiceState state);
@@ -550,6 +552,9 @@ gboolean mm_parse_supl_address (const gchar *supl,
guint16 *out_port,
GError **error);
+gboolean mm_validate_cbs_channels (GArray *channels,
+ GError **error);
+
/*****************************************************************************/
/* SIM specific helpers and utilities */
/*****************************************************************************/
diff --git a/src/tests/test-modem-helpers.c b/src/tests/test-modem-helpers.c
index 538aedfe..6692e56d 100644
--- a/src/tests/test-modem-helpers.c
+++ b/src/tests/test-modem-helpers.c
@@ -4278,6 +4278,100 @@ test_ccwa_response (void)
}
/*****************************************************************************/
+/* Test +CSCB channel lists */
+
+typedef struct {
+ const gchar *response;
+ const MMCellBroadcastChannels *channels;
+ guint len;
+ gboolean error;
+} TestCscb;
+
+static void
+common_test_cscb_response (const gchar *response, TestCscb *expected)
+{
+ GError *error = NULL;
+ GArray *result;
+
+ g_debug ("Testing '%s'", response);
+ result = mm_3gpp_parse_cscb_response (response, &error);
+
+ if (expected->error) {
+ g_assert (!result);
+ g_assert_nonnull (error);
+ g_error_free (error);
+ } else {
+ guint i;
+
+ g_assert_no_error (error);
+ g_assert (result);
+ g_assert_cmpint (result->len, ==, expected->len);
+ for (i = 0; i < expected->len; i++) {
+ MMCellBroadcastChannels ch = g_array_index (result, MMCellBroadcastChannels, i);
+
+ g_assert_cmpuint (ch.start, ==, expected->channels[i].start);
+ g_assert_cmpuint (ch.end, ==, expected->channels[i].end);
+ }
+ }
+}
+
+static const MMCellBroadcastChannels cscb_one_channel[] = {
+ { .start = 0, .end = 0 },
+};
+
+static const MMCellBroadcastChannels cscb_all_channels[] = {
+ { .start = 0, .end = 65535 },
+};
+
+static const MMCellBroadcastChannels cscb_interval_channels[] = {
+ { .start = 0, .end = 1 },
+ { .start = 100, .end = 200 },
+};
+
+static const MMCellBroadcastChannels cscb_dell5821e_channels[] = {
+ { .start = 4383, .end = 4383 },
+ { .start = 4400, .end = 4400 },
+ { .start = 4370, .end = 4370 },
+ { .start = 4371, .end = 4378 },
+ { .start = 4384, .end = 4391 },
+ { .start = 4396, .end = 4397 },
+};
+
+static TestCscb test_cscb[] = {
+ { "\r\n+CSCB: 0, \"0\",\"\"\r\n\r\nOK\r\n", /* one channel */
+ cscb_one_channel,
+ G_N_ELEMENTS (cscb_all_channels),
+ FALSE },
+ { "+CSCB: 0,\"0-65535\",\"\"\r\n", /* all channels */
+ cscb_all_channels,
+ G_N_ELEMENTS (cscb_all_channels),
+ FALSE },
+ { "+CSCB: 0,\"0-1,100-200\",\"\"\r\n", /* intervals */
+ cscb_interval_channels,
+ G_N_ELEMENTS (cscb_interval_channels),
+ FALSE },
+ /* Dell 5821e/T77W968 defaults */
+ { "+CSCB: 0, \"4383,4400,4370,4371-4378,4384-4391,4396-4397\",\"\"",
+ cscb_dell5821e_channels,
+ G_N_ELEMENTS (cscb_dell5821e_channels),
+ FALSE },
+ { "+CSCB: 0,\"0-\",\"\"\r\n", /* broken interval */
+ NULL,
+ 0,
+ TRUE },
+};
+
+static void
+test_cscb_response (void)
+{
+ guint i;
+
+ for (i = 0; i < G_N_ELEMENTS (test_cscb); i++)
+ common_test_cscb_response (test_cscb[i].response, &test_cscb[i]);
+}
+
+
+/*****************************************************************************/
/* Test +CLCC URCs */
static void
@@ -4994,6 +5088,8 @@ int main (int argc, char **argv)
g_test_suite_add (suite, TESTCASE (test_ccwa_indication, NULL));
g_test_suite_add (suite, TESTCASE (test_ccwa_response, NULL));
+ g_test_suite_add (suite, TESTCASE (test_cscb_response, NULL));
+
g_test_suite_add (suite, TESTCASE (test_clcc_response_empty, NULL));
g_test_suite_add (suite, TESTCASE (test_clcc_response_single, NULL));
g_test_suite_add (suite, TESTCASE (test_clcc_response_single_long, NULL));
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-06-08 05:34:53 +0000