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ModemManager/SOURCES/0001-plugin-ignore-unwanted...

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From fd1a26fc36df005d66627109875631264d2f8e19 Mon Sep 17 00:00:00 2001
From: Aleksander Morgado <aleksander@aleksander.es>
Date: Wed, 22 May 2019 23:20:30 +0200
Subject: [PATCH] plugin: ignore unwanted net ports
* For QMI modems, make sure we only grab QMI data ports (flag the
rest as ignored).
* For MBIM modems, make sure we only grab MBIM data ports (flag the
rest as ignored).
* For other plugins that use NET ports in their logic, make sure we
only grab non-QMI and non-MBIM data ports.
---
src/mm-plugin.c | 120 +++++++++++++++++++++++++++++++++++-------------
1 file changed, 89 insertions(+), 31 deletions(-)
diff --git a/src/mm-plugin.c b/src/mm-plugin.c
index 08fe2cd0..a19111ff 100644
--- a/src/mm-plugin.c
+++ b/src/mm-plugin.c
@@ -37,6 +37,13 @@
#include "mm-log.h"
#include "mm-daemon-enums-types.h"
+#if defined WITH_QMI
+# include "mm-broadband-modem-qmi.h"
+#endif
+#if defined WITH_MBIM
+# include "mm-broadband-modem-mbim.h"
+#endif
+
G_DEFINE_TYPE (MMPlugin, mm_plugin, G_TYPE_OBJECT)
/* Virtual port corresponding to the embedded modem */
@@ -920,9 +927,22 @@ mm_plugin_create_modem (MMPlugin *self,
/* Grab each port */
for (l = port_probes; l; l = g_list_next (l)) {
- GError *inner_error = NULL;
- MMPortProbe *probe = MM_PORT_PROBE (l->data);
- gboolean grabbed;
+ GError *inner_error = NULL;
+ MMPortProbe *probe;
+ gboolean grabbed = FALSE;
+ gboolean force_ignored = FALSE;
+ const gchar *subsys;
+ const gchar *name;
+ const gchar *driver;
+ MMPortType port_type;
+
+ probe = MM_PORT_PROBE (l->data);
+
+ subsys = mm_port_probe_get_port_subsys (probe);
+ name = mm_port_probe_get_port_name (probe);
+ port_type = mm_port_probe_get_port_type (probe);
+
+ driver = mm_kernel_device_get_driver (mm_port_probe_peek_port (probe));
/* If grabbing a port fails, just warn. We'll decide if the modem is
* valid or not when all ports get organized */
@@ -931,45 +951,82 @@ mm_plugin_create_modem (MMPlugin *self,
* probed and accepted by the generic plugin, which is overwritten
* by the specific one when needed. */
if (apply_subsystem_filter (self, mm_port_probe_peek_port (probe))) {
- grabbed = FALSE;
inner_error = g_error_new (MM_CORE_ERROR,
MM_CORE_ERROR_UNSUPPORTED,
"unsupported subsystem: '%s'",
- mm_port_probe_get_port_subsys (probe));
+ subsys);
+ goto next;
}
+
/* Ports that are explicitly blacklisted will be grabbed as ignored */
- else if (mm_port_probe_is_ignored (probe)) {
- mm_dbg ("(%s/%s): port is blacklisted",
- mm_port_probe_get_port_subsys (probe),
- mm_port_probe_get_port_name (probe));
- grabbed = mm_base_modem_grab_port (modem,
- mm_port_probe_peek_port (probe),
- MM_PORT_TYPE_IGNORED,
- MM_PORT_SERIAL_AT_FLAG_NONE,
- &inner_error);
+ if (mm_port_probe_is_ignored (probe)) {
+ mm_dbg ("(%s/%s): port is blacklisted", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
}
-#if !defined WITH_QMI
- else if (mm_port_probe_get_port_type (probe) == MM_PORT_TYPE_NET &&
- !g_strcmp0 (mm_kernel_device_get_driver (mm_port_probe_peek_port (probe)), "qmi_wwan")) {
- /* Try to generically grab the port, but flagged as ignored */
- grabbed = mm_base_modem_grab_port (modem,
- mm_port_probe_peek_port (probe),
- MM_PORT_TYPE_IGNORED,
- MM_PORT_SERIAL_AT_FLAG_NONE,
- &inner_error);
+
+#if defined WITH_QMI
+ if (MM_IS_BROADBAND_MODEM_QMI (modem) &&
+ port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "qmi_wwan") != 0) {
+ /* Non-QMI net ports are ignored in QMI modems */
+ mm_dbg ("(%s/%s): ignoring non-QMI net port in QMI modem", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
+ }
+
+ if (!MM_IS_BROADBAND_MODEM_QMI (modem) &&
+ port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "qmi_wwan") == 0) {
+ /* QMI net ports are ignored in non-QMI modems */
+ mm_dbg ("(%s/%s): ignoring QMI net port in non-QMI modem", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
+ }
+#else
+ if (port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "qmi_wwan") != 0) {
+ /* QMI net ports are ignored if QMI support not built */
+ mm_dbg ("(%s/%s): ignoring QMI net port as QMI support isn't available", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
+ }
+#endif
+
+#if defined WITH_MBIM
+ if (MM_IS_BROADBAND_MODEM_MBIM (modem) &&
+ port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "cdc_mbim") != 0) {
+ /* Non-MBIM net ports are ignored in MBIM modems */
+ mm_dbg ("(%s/%s): ignoring non-MBIM net port in MBIM modem", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
+ }
+
+ if (!MM_IS_BROADBAND_MODEM_MBIM (modem) &&
+ port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "cdc_mbim") == 0) {
+ /* MBIM net ports are ignored in non-MBIM modems */
+ mm_dbg ("(%s/%s): ignoring MBIM net port in non-MBIM modem", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
+ }
+#else
+ if (port_type == MM_PORT_TYPE_NET &&
+ g_strcmp0 (driver, "cdc_mbim") == 0) {
+ mm_dbg ("(%s/%s): ignoring MBIM net port as MBIM support isn't available", subsys, name);
+ force_ignored = TRUE;
+ goto grab_port;
}
#endif
-#if !defined WITH_MBIM
- else if (mm_port_probe_get_port_type (probe) == MM_PORT_TYPE_NET &&
- !g_strcmp0 (mm_kernel_device_get_driver (mm_port_probe_peek_port (probe)), "cdc_mbim")) {
- /* Try to generically grab the port, but flagged as ignored */
+
+ grab_port:
+ if (force_ignored)
grabbed = mm_base_modem_grab_port (modem,
mm_port_probe_peek_port (probe),
MM_PORT_TYPE_IGNORED,
MM_PORT_SERIAL_AT_FLAG_NONE,
&inner_error);
- }
-#endif
else if (MM_PLUGIN_GET_CLASS (self)->grab_port)
grabbed = MM_PLUGIN_GET_CLASS (self)->grab_port (MM_PLUGIN (self),
modem,
@@ -981,10 +1038,11 @@ mm_plugin_create_modem (MMPlugin *self,
mm_port_probe_get_port_type (probe),
MM_PORT_SERIAL_AT_FLAG_NONE,
&inner_error);
+
+ next:
if (!grabbed) {
mm_warn ("Could not grab port (%s/%s): '%s'",
- mm_port_probe_get_port_subsys (MM_PORT_PROBE (l->data)),
- mm_port_probe_get_port_name (MM_PORT_PROBE (l->data)),
+ subsys, name,
inner_error ? inner_error->message : "unknown error");
g_clear_error (&inner_error);
}
--
2.21.0
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