creation of links to ports has been moved to the directory /dev/dongle

.vscode/settings.json

@@ -18,7 +18,8 @@
         "*.tcc": "c",
         "cstdint": "c",
         "fcntl.h": "c",
-        "file.h": "c"
+        "file.h": "c",
+        "dir.h": "c"
     },
     "cmake.configureOnOpen": false
 }

CHANGELOG.md

@@ -1,3 +1,8 @@
 # Changelog
 
-## [x.x.x] - unreleased
+## [0.2.0](https://github.com/AlexanderZhirov/MPortLink/compare/0.1.0...v0.2.0)
+### Changed
+- Creation of links to ports has been moved to the directory `/dev/dongle`
+
+## [0.1.0](https://github.com/AlexanderZhirov/MPortLink/tree/36a71e51b9fc38793366a70264864d43771c5b81)
+- The first version is linked to the original [ModemManager](https://gitlab.freedesktop.org/mobile-broadband/ModemManager)

README.md

@@ -21,3 +21,22 @@ After installing the dependencies, you just need to run the script `build.sh `an
 ```
 gcc -Werror -Wall -Os src/*.c `pkg-config --libs --cflags mm-glib` -o mportlink
 ```
+
+## Using
+
+Superuser rights are required to work. Start the daemon and connect your USB modem. In `journalctl` you will see his work. Links to the ports of the connected modem will be created in the `/dev/dongle` directory.
+
+```
+Dec 21 13:51:02 solus mportlink[17764]: main: starting the mportlink daemon
+Dec 21 13:51:26 solus mportlink[17764]: mpl_symlink_ports, dst_path: the symbolic link has been successfully created [/dev/dongle/358**********26-0 -> /dev/ttyUSB0]
+Dec 21 13:51:26 solus mportlink[17764]: mpl_symlink_ports, dst_path: the symbolic link has been successfully created [/dev/dongle/358**********26-1 -> /dev/ttyUSB1]
+Dec 21 13:51:41 solus mportlink[17764]: mpl_unlink_ports, dst_path: link was successfully deleted [/dev/dongle/358**********26-0]
+Dec 21 13:51:41 solus mportlink[17764]: mpl_unlink_ports, dst_path: link was successfully deleted [/dev/dongle/358**********26-1]
+Dec 21 13:51:48 solus mportlink[17764]: signals_handler: cancelling the operation...
+Dec 21 13:51:48 solus mportlink[17764]: signals_handler: cancelling the main loop...
+Dec 21 13:51:48 solus mportlink[17764]: main: stopping the mportlink daemon
+```
+
+## To-Do
+
+Currently, the utility is linked to the ModemManager server, through which the connected modems are identified. It is planned to disconnect from this server, as there is a problem with the capture of the device and the unavailability of using Asterisk.

services/mportlink.service

@@ -1,7 +1,6 @@
 [Unit]
 Description=Modem Port Link
-After=polkit.service
+After=ModemManager.service
-Requires=polkit.service
 
 [Service]
 ExecStart=/usr/bin/mportlink

src/mportlink-core.c

@@ -5,6 +5,7 @@
 #include <sys/stat.h>
 
 #define DEV_PATH "/dev/"
+#define DONGLE_PATH "/dev/dongle/"
 
 typedef struct
 {
@@ -16,6 +17,25 @@ typedef struct
     guint n_ports;
 } MPLmodem;
 
+void mpl_create_dongle_dir()
+{
+    struct stat st;
+
+    if (stat(DONGLE_PATH, &st) == 0)
+    {
+        if (!S_ISDIR(st.st_mode))
+        {
+            syslog(LOG_ERR, "mpl_create_dongle_dir: %s exists and is not a directory", DONGLE_PATH);
+            raise(SIGINT);
+        }
+    }
+    else if (mkdir(DONGLE_PATH, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) == -1)
+    {
+        syslog(LOG_ERR, "mpl_create_dongle_dir: unable to create a directory %s", DONGLE_PATH);
+        raise(SIGINT);
+    }
+}
+
 MPLmodem *mpl_get_new_modem()
 {
     MPLmodem *modem = (MPLmodem *)calloc(1, sizeof(MPLmodem));
@@ -108,7 +128,7 @@ char *mpl_get_dst_path(guint index, const gchar *imei)
 
     sprintf(id, "-%d", index);
 
-    guint dst_path_size = strlen(DEV_PATH) + strlen(imei) + size_id;
+    guint dst_path_size = strlen(DONGLE_PATH) + strlen(imei) + size_id;
     dst_path = (char *)calloc(dst_path_size + 1, sizeof(char));
 
     if (dst_path == NULL)
@@ -117,7 +137,7 @@ char *mpl_get_dst_path(guint index, const gchar *imei)
         raise(SIGINT);
     }
 
-    strcpy(dst_path, DEV_PATH);
+    strcpy(dst_path, DONGLE_PATH);
     strcat(dst_path, imei);
     strcat(dst_path, id);
 

src/mportlink.c

@@ -50,6 +50,8 @@ int main()
 
     syslog(LOG_NOTICE, "main: starting the %s daemon", MPL);
 
+    mpl_create_dongle_dir();
+
     GError *error = NULL;
     GDBusConnection *connection = NULL;
 

src/mportlink.h

@@ -1,4 +1,5 @@
 #include "mm.h"
 
+void mpl_create_dongle_dir();
 void mpl_device_added(MMManager *manager, MMObject *obj);
 void mpl_device_removed(MMManager *manager, MMObject *obj);