libnm: Add initial EPS parameters to gsm settings

The configure flag and APN for the initial EPS bearer are used when
bringing up cellular modem connections. These settings are only relevant
for LTE modems.

Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com>

8 files changed, 158 insertions, 44 deletions

diff --git a/src/libnm-client-impl/libnm.ver b/src/libnm-client-impl/libnm.ver
index 732c933e57..75726d7caa 100644
--- a/src/libnm-client-impl/libnm.ver
+++ b/src/libnm-client-impl/libnm.ver
@@ -1923,4 +1923,6 @@ global:
 libnm_1_44_0 {
 global:
 	nm_active_connection_get_controller;
+	nm_setting_gsm_get_initial_eps_apn;
+	nm_setting_gsm_get_initial_eps_config;
 } libnm_1_42_0;
diff --git a/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in b/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
index 3b210b1686..562ba7916f 100644
--- a/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
+++ b/src/libnm-core-impl/gen-metadata-nm-settings-libnm-core.xml.in
@@ -1313,6 +1313,14 @@
                   dbus-type="b"
                   gprop-type="gboolean"
                   />
+        <property name="initial-eps-bearer-apn"
+                  dbus-type="s"
+                  gprop-type="gchararray"
+                  />
+        <property name="initial-eps-bearer-configure"
+                  dbus-type="b"
+                  gprop-type="gboolean"
+                  />
         <property name="mtu"
                   dbus-type="u"
                   gprop-type="guint"
diff --git a/src/libnm-core-impl/nm-setting-gsm.c b/src/libnm-core-impl/nm-setting-gsm.c
index 639cf94919..c68cdf3b72 100644
--- a/src/libnm-core-impl/nm-setting-gsm.c
+++ b/src/libnm-core-impl/nm-setting-gsm.c
@@ -36,7 +36,9 @@ NM_GOBJECT_PROPERTIES_DEFINE_BASE(PROP_AUTO_CONFIG,
                                   PROP_DEVICE_ID,
                                   PROP_SIM_ID,
                                   PROP_SIM_OPERATOR_ID,
-                                  PROP_MTU, );
+                                  PROP_MTU,
+                                  PROP_INITIAL_EPS_CONFIG,
+                                  PROP_INITIAL_EPS_APN, );
 
 typedef struct {
     char   *number;
@@ -48,11 +50,13 @@ typedef struct {
     char   *apn;
     char   *network_id;
     char   *pin;
+    char   *initial_eps_apn;
     guint   password_flags;
     guint   pin_flags;
     guint32 mtu;
     bool    auto_config;
     bool    home_only;
+    bool    initial_eps_config;
 } NMSettingGsmPrivate;
 
 /**
@@ -286,6 +290,38 @@ nm_setting_gsm_get_mtu(NMSettingGsm *setting)
     return NM_SETTING_GSM_GET_PRIVATE(setting)->mtu;
 }
 
+/**
+ * nm_setting_gsm_get_initial_eps_config:
+ * @setting: the #NMSettingGsm
+ *
+ * Returns: the #NMSettingGsm:initial-eps-bearer-configure property of the setting
+ *
+ * Since: 1.44
+ **/
+gboolean
+nm_setting_gsm_get_initial_eps_config(NMSettingGsm *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), FALSE);
+
+    return NM_SETTING_GSM_GET_PRIVATE(setting)->initial_eps_config;
+}
+
+/**
+ * nm_setting_gsm_get_initial_eps_apn:
+ * @setting: the #NMSettingGsm
+ *
+ * Returns: the #NMSettingGsm:initial-eps-bearer-apn property of the setting
+ *
+ * Since: 1.44
+ **/
+const char *
+nm_setting_gsm_get_initial_eps_apn(NMSettingGsm *setting)
+{
+    g_return_val_if_fail(NM_IS_SETTING_GSM(setting), NULL);
+
+    return NM_SETTING_GSM_GET_PRIVATE(setting)->initial_eps_apn;
+}
+
 static gboolean
 _verify_apn(const char *apn, gboolean allow_empty, const char *property_name, GError **error)
 {
@@ -368,6 +404,9 @@ verify(NMSetting *setting, NMConnection *connection, GError **error)
     if (!_verify_apn(priv->apn, TRUE, NM_SETTING_GSM_APN, error))
         return FALSE;
 
+    if (!_verify_apn(priv->initial_eps_apn, FALSE, NM_SETTING_GSM_INITIAL_EPS_BEARER_APN, error))
+        return FALSE;
+
     if (priv->username && priv->username[0] == '\0') {
         g_set_error_literal(error,
                             NM_CONNECTION_ERROR,
@@ -764,6 +803,41 @@ nm_setting_gsm_class_init(NMSettingGsmClass *klass)
                                               NMSettingGsmPrivate,
                                               mtu);
 
+    /**
+     * NMSettingGsm:initial-eps-bearer-configure:
+     *
+     * For LTE modems, this setting determines whether the initial EPS bearer
+     * shall be configured when bringing up the connection.  It is inferred TRUE
+     * if initial-eps-bearer-apn is set.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_boolean(properties_override,
+                                               obj_properties,
+                                               NM_SETTING_GSM_INITIAL_EPS_BEARER_CONFIGURE,
+                                               PROP_INITIAL_EPS_CONFIG,
+                                               FALSE,
+                                               NM_SETTING_PARAM_NONE,
+                                               NMSettingGsmPrivate,
+                                               initial_eps_config);
+
+    /**
+     * NMSettingGsm:initial-eps-bearer-apn:
+     *
+     * For LTE modems, this sets the APN for the initial EPS bearer that is set
+     * up when attaching to the network.  Setting this parameters implies
+     * initial-eps-bearer-configure to be TRUE.
+     *
+     * Since: 1.44
+     **/
+    _nm_setting_property_define_direct_string(properties_override,
+                                              obj_properties,
+                                              NM_SETTING_GSM_INITIAL_EPS_BEARER_APN,
+                                              PROP_INITIAL_EPS_APN,
+                                              NM_SETTING_PARAM_NONE,
+                                              NMSettingGsmPrivate,
+                                              initial_eps_apn);
+
     /* Ignore incoming deprecated properties */
     _nm_properties_override_dbus(properties_override,
                                  "allowed-bands",
diff --git a/src/libnm-core-public/nm-setting-gsm.h b/src/libnm-core-public/nm-setting-gsm.h
index 0d57511d9f..dd5b0b26de 100644
--- a/src/libnm-core-public/nm-setting-gsm.h
+++ b/src/libnm-core-public/nm-setting-gsm.h
@@ -26,19 +26,21 @@ G_BEGIN_DECLS
 
 #define NM_SETTING_GSM_SETTING_NAME "gsm"
 
-#define NM_SETTING_GSM_AUTO_CONFIG     "auto-config"
-#define NM_SETTING_GSM_USERNAME        "username"
-#define NM_SETTING_GSM_PASSWORD        "password"
-#define NM_SETTING_GSM_PASSWORD_FLAGS  "password-flags"
-#define NM_SETTING_GSM_APN             "apn"
-#define NM_SETTING_GSM_NETWORK_ID      "network-id"
-#define NM_SETTING_GSM_PIN             "pin"
-#define NM_SETTING_GSM_PIN_FLAGS       "pin-flags"
-#define NM_SETTING_GSM_HOME_ONLY       "home-only"
-#define NM_SETTING_GSM_DEVICE_ID       "device-id"
-#define NM_SETTING_GSM_SIM_ID          "sim-id"
-#define NM_SETTING_GSM_SIM_OPERATOR_ID "sim-operator-id"
-#define NM_SETTING_GSM_MTU             "mtu"
+#define NM_SETTING_GSM_AUTO_CONFIG                  "auto-config"
+#define NM_SETTING_GSM_USERNAME                     "username"
+#define NM_SETTING_GSM_PASSWORD                     "password"
+#define NM_SETTING_GSM_PASSWORD_FLAGS               "password-flags"
+#define NM_SETTING_GSM_APN                          "apn"
+#define NM_SETTING_GSM_NETWORK_ID                   "network-id"
+#define NM_SETTING_GSM_PIN                          "pin"
+#define NM_SETTING_GSM_PIN_FLAGS                    "pin-flags"
+#define NM_SETTING_GSM_HOME_ONLY                    "home-only"
+#define NM_SETTING_GSM_DEVICE_ID                    "device-id"
+#define NM_SETTING_GSM_SIM_ID                       "sim-id"
+#define NM_SETTING_GSM_SIM_OPERATOR_ID              "sim-operator-id"
+#define NM_SETTING_GSM_MTU                          "mtu"
+#define NM_SETTING_GSM_INITIAL_EPS_BEARER_CONFIGURE "initial-eps-bearer-configure"
+#define NM_SETTING_GSM_INITIAL_EPS_BEARER_APN       "initial-eps-bearer-apn"
 
 /* Deprecated */
 #define NM_SETTING_GSM_NUMBER "number"
@@ -67,6 +69,10 @@ NM_AVAILABLE_IN_1_2
 const char *nm_setting_gsm_get_sim_operator_id(NMSettingGsm *setting);
 NM_AVAILABLE_IN_1_8
 guint32 nm_setting_gsm_get_mtu(NMSettingGsm *setting);
+NM_AVAILABLE_IN_1_44
+gboolean nm_setting_gsm_get_initial_eps_config(NMSettingGsm *setting);
+NM_AVAILABLE_IN_1_44
+const char *nm_setting_gsm_get_initial_eps_apn(NMSettingGsm *setting);
 
 NM_DEPRECATED_IN_1_16
 const char *nm_setting_gsm_get_number(NMSettingGsm *setting);
diff --git a/src/libnmc-setting/nm-meta-setting-desc.c b/src/libnmc-setting/nm-meta-setting-desc.c
index f3372fb230..d0714a86ab 100644
--- a/src/libnmc-setting/nm-meta-setting-desc.c
+++ b/src/libnmc-setting/nm-meta-setting-desc.c
@@ -5971,6 +5971,12 @@ static const NMMetaPropertyInfo *const property_infos_GSM[] = {
             .get_fcn =                  MTU_GET_FCN (NMSettingGsm, nm_setting_gsm_get_mtu),
         ),
     ),
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_GSM_INITIAL_EPS_BEARER_CONFIGURE,
+        .property_type =                &_pt_gobject_bool,
+    ),
+    PROPERTY_INFO_WITH_DESC (NM_SETTING_GSM_INITIAL_EPS_BEARER_APN,
+        .property_type =                &_pt_gobject_string,
+    ),
     NULL
 };
 
diff --git a/src/libnmc-setting/settings-docs.h.in b/src/libnmc-setting/settings-docs.h.in
index b7f1dc2458..0f68b5d118 100644
--- a/src/libnmc-setting/settings-docs.h.in
+++ b/src/libnmc-setting/settings-docs.h.in
@@ -141,6 +141,8 @@
 #define DESCRIBE_DOC_NM_SETTING_GSM_AUTO_CONFIG N_("When TRUE, the settings such as APN, username, or password will default to values that match the network the modem will register to in the Mobile Broadband Provider database.")
 #define DESCRIBE_DOC_NM_SETTING_GSM_DEVICE_ID N_("The device unique identifier (as given by the WWAN management service) which this connection applies to.  If given, the connection will only apply to the specified device.")
 #define DESCRIBE_DOC_NM_SETTING_GSM_HOME_ONLY N_("When TRUE, only connections to the home network will be allowed. Connections to roaming networks will not be made.")
+#define DESCRIBE_DOC_NM_SETTING_GSM_INITIAL_EPS_BEARER_APN N_("For LTE modems, this sets the APN for the initial EPS bearer that is set up when attaching to the network.  Setting this parameters implies initial-eps-bearer-configure to be TRUE.")
+#define DESCRIBE_DOC_NM_SETTING_GSM_INITIAL_EPS_BEARER_CONFIGURE N_("For LTE modems, this setting determines whether the initial EPS bearer shall be configured when bringing up the connection.  It is inferred TRUE if initial-eps-bearer-apn is set.")
 #define DESCRIBE_DOC_NM_SETTING_GSM_MTU N_("If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple frames.")
 #define DESCRIBE_DOC_NM_SETTING_GSM_NETWORK_ID N_("The Network ID (GSM LAI format, ie MCC-MNC) to force specific network registration.  If the Network ID is specified, NetworkManager will attempt to force the device to register only on the specified network. This can be used to ensure that the device does not roam when direct roaming control of the device is not otherwise possible.")
 #define DESCRIBE_DOC_NM_SETTING_GSM_NUMBER N_("Legacy setting that used to help establishing PPP data sessions for GSM-based modems.")
diff --git a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
index cec7a58eb8..0a7ab2d8ac 100644
--- a/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
+++ b/src/nmcli/gen-metadata-nm-settings-nmcli.xml.in
@@ -588,6 +588,10 @@
                   description="A MCC/MNC string like &quot;310260&quot; or &quot;21601&quot; identifying the specific mobile network operator which this connection applies to.  If given, the connection will apply to any device also allowed by &quot;device-id&quot; and &quot;sim-id&quot; which contains a SIM card provisioned by the given operator." />
         <property name="mtu"
                   description="If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple frames." />
+        <property name="initial-eps-bearer-configure"
+                  description="For LTE modems, this setting determines whether the initial EPS bearer shall be configured when bringing up the connection.  It is inferred TRUE if initial-eps-bearer-apn is set." />
+        <property name="initial-eps-bearer-apn"
+                  description="For LTE modems, this sets the APN for the initial EPS bearer that is set up when attaching to the network.  Setting this parameters implies initial-eps-bearer-configure to be TRUE." />
     </setting>
     <setting name="hostname" >
         <property name="priority"
diff --git a/src/tests/client/test-client.check-on-disk/test_003.expected b/src/tests/client/test-client.check-on-disk/test_003.expected
index a48c23c1ab..ae4ad72dc1 100644
--- a/src/tests/client/test-client.check-on-disk/test_003.expected
+++ b/src/tests/client/test-client.check-on-disk/test_003.expected
@@ -182,12 +182,12 @@ id
 path
 uuid
 <<<
-size: 4990
+size: 5076
 location: src/tests/client/test-client.py:test_003()/14
 cmd: $NMCLI con s con-gsm1
 lang: C
 returncode: 0
-stdout: 4857 bytes
+stdout: 4943 bytes
 >>>
 connection.id:                          con-gsm1
 connection.uuid:                        UUID-con-gsm1-REPLACED-REPLACED-REPL
@@ -291,18 +291,20 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                auto
+gsm.initial-eps-bearer-configure:       no
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     no
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 5028
+size: 5115
 location: src/tests/client/test-client.py:test_003()/15
 cmd: $NMCLI con s con-gsm1
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 4885 bytes
+stdout: 4972 bytes
 >>>
 connection.id:                          con-gsm1
 connection.uuid:                        UUID-con-gsm1-REPLACED-REPLACED-REPL
@@ -406,48 +408,50 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                automatyczne
+gsm.initial-eps-bearer-configure:       nie
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     nie
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 499
+size: 503
 location: src/tests/client/test-client.py:test_003()/16
 cmd: $NMCLI -g all con s con-gsm1
 lang: C
 returncode: 0
-stdout: 360 bytes
+stdout: 364 bytes
 >>>
 connection:con-gsm1:UUID-con-gsm1-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0:xyz.con-gsm1::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0:xyz.con-gsm1::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<
-size: 509
+size: 513
 location: src/tests/client/test-client.py:test_003()/17
 cmd: $NMCLI -g all con s con-gsm1
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 360 bytes
+stdout: 364 bytes
 >>>
 connection:con-gsm1:UUID-con-gsm1-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0:xyz.con-gsm1::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0:xyz.con-gsm1::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<
-size: 4978
+size: 5064
 location: src/tests/client/test-client.py:test_003()/18
 cmd: $NMCLI con s con-gsm2
 lang: C
 returncode: 0
-stdout: 4845 bytes
+stdout: 4931 bytes
 >>>
 connection.id:                          con-gsm2
 connection.uuid:                        UUID-con-gsm2-REPLACED-REPLACED-REPL
@@ -551,18 +555,20 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                auto
+gsm.initial-eps-bearer-configure:       no
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     no
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 5016
+size: 5103
 location: src/tests/client/test-client.py:test_003()/19
 cmd: $NMCLI con s con-gsm2
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 4873 bytes
+stdout: 4960 bytes
 >>>
 connection.id:                          con-gsm2
 connection.uuid:                        UUID-con-gsm2-REPLACED-REPLACED-REPL
@@ -666,48 +672,50 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                automatyczne
+gsm.initial-eps-bearer-configure:       nie
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     nie
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 487
+size: 491
 location: src/tests/client/test-client.py:test_003()/20
 cmd: $NMCLI -g all con s con-gsm2
 lang: C
 returncode: 0
-stdout: 348 bytes
+stdout: 352 bytes
 >>>
 connection:con-gsm2:UUID-con-gsm2-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0:::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0:::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<
-size: 497
+size: 501
 location: src/tests/client/test-client.py:test_003()/21
 cmd: $NMCLI -g all con s con-gsm2
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 348 bytes
+stdout: 352 bytes
 >>>
 connection:con-gsm2:UUID-con-gsm2-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0:::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0:::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<
-size: 4978
+size: 5064
 location: src/tests/client/test-client.py:test_003()/22
 cmd: $NMCLI con s con-gsm3
 lang: C
 returncode: 0
-stdout: 4845 bytes
+stdout: 4931 bytes
 >>>
 connection.id:                          con-gsm3
 connection.uuid:                        UUID-con-gsm3-REPLACED-REPLACED-REPL
@@ -811,18 +819,20 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                auto
+gsm.initial-eps-bearer-configure:       no
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     no
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 5016
+size: 5103
 location: src/tests/client/test-client.py:test_003()/23
 cmd: $NMCLI con s con-gsm3
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 4873 bytes
+stdout: 4960 bytes
 >>>
 connection.id:                          con-gsm3
 connection.uuid:                        UUID-con-gsm3-REPLACED-REPLACED-REPL
@@ -926,39 +936,41 @@ gsm.device-id:                          --
 gsm.sim-id:                             --
 gsm.sim-operator-id:                    --
 gsm.mtu:                                automatyczne
+gsm.initial-eps-bearer-configure:       nie
+gsm.initial-eps-bearer-apn:             --
 proxy.method:                           none
 proxy.browser-only:                     nie
 proxy.pac-url:                          --
 proxy.pac-script:                       --
 
 <<<
-size: 488
+size: 492
 location: src/tests/client/test-client.py:test_003()/24
 cmd: $NMCLI -g all con s con-gsm3
 lang: C
 returncode: 0
-stdout: 349 bytes
+stdout: 353 bytes
 >>>
 connection:con-gsm3:UUID-con-gsm3-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0: ::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0: ::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<
-size: 498
+size: 502
 location: src/tests/client/test-client.py:test_003()/25
 cmd: $NMCLI -g all con s con-gsm3
 lang: pl_PL.UTF-8
 returncode: 0
-stdout: 349 bytes
+stdout: 353 bytes
 >>>
 connection:con-gsm3:UUID-con-gsm3-REPLACED-REPLACED-REPL::gsm::no:0:-1:0:-1:0:no:::::-1::0:unknown:default:-1:-1:-1:0x0:-1:-1
 ipv4:auto::: :0::::-1:0::no:no:::0:yes:::0x0:no:yes:-1:-1::0::-1
 ipv6:auto::::0::::-1:0::no:no:no:yes:-1:-1:default:0:auto:::0:yes::0x0:-1:
 serial:5:8:even:1:100
-gsm:no:::<hidden>:0: ::<hidden>:0:no::::auto
+gsm:no:::<hidden>:0: ::<hidden>:0:no::::auto:no:
 proxy:none:no::
 
 <<<