bus: install systemd-bus-proxyd unit files for compatibility with dbus1

2 files changed, 35 insertions, 12 deletions

diff --git a/src/bus-proxyd/bus-proxyd.c b/src/bus-proxyd/bus-proxyd.c
index f391fbf42b..015f40a65c 100644
--- a/src/bus-proxyd/bus-proxyd.c
+++ b/src/bus-proxyd/bus-proxyd.c
@@ -40,18 +40,20 @@
 #include "bus-util.h"
 #include "build.h"
 
-#define DEFAULT_BUS_PATH "unix:path=/run/dbus/system_bus_socket"
-
-const char *arg_bus_path = DEFAULT_BUS_PATH;
+#ifdef ENABLE_KDBUS
+const char *arg_bus_path = "kernel:path=/dev/kdbus/0-system/bus;unix:path=/run/dbus/system_bus_socket";
+#else
+const char *arg_bus_path = "unix:path=/run/dbus/system_bus_socket";
+#endif
 
 static int help(void) {
 
         printf("%s [OPTIONS...]\n\n"
-               "STDIO or socket-activatable proxy to a given DBus endpoint.\n\n"
+               "Connection STDIO or a socket to a given bus address.\n\n"
                "  -h --help              Show this help\n"
                "     --version           Show package version\n"
-               "  -p --bus-path=PATH     Path to the kernel bus (default: %s)\n",
-               program_invocation_short_name, DEFAULT_BUS_PATH);
+               "  -p --bus-path=PATH     Bus address to forward to (default: %s)\n",
+               program_invocation_short_name, arg_bus_path);
 
         return 0;
 }
diff --git a/src/dbus1-generator/dbus1-generator.c b/src/dbus1-generator/dbus1-generator.c
index dd299edc75..e86fc6e56a 100644
--- a/src/dbus1-generator/dbus1-generator.c
+++ b/src/dbus1-generator/dbus1-generator.c
@@ -28,7 +28,7 @@
 #include "unit-name.h"
 #include "cgroup-util.h"
 
-static const char *arg_dest = "/tmp";
+static const char *arg_dest_late = "/tmp", *arg_dest = "/tmp";
 
 static int create_dbus_files(
                 const char *path,
@@ -52,7 +52,7 @@ static int create_dbus_files(
                 if (!s)
                         return log_oom();
 
-                a = strjoin(arg_dest, "/", s, NULL);
+                a = strjoin(arg_dest_late, "/", s, NULL);
                 if (!a)
                         return log_oom();
 
@@ -98,7 +98,7 @@ static int create_dbus_files(
                 service = s;
         }
 
-        b = strjoin(arg_dest, "/", name, ".busname", NULL);
+        b = strjoin(arg_dest_late, "/", name, ".busname", NULL);
         if (!b)
                 return log_oom();
 
@@ -127,7 +127,7 @@ static int create_dbus_files(
                 return -errno;
         }
 
-        lnk = strjoin(arg_dest, "/" SPECIAL_BUSNAMES_TARGET ".wants/", name, ".busname", NULL);
+        lnk = strjoin(arg_dest_late, "/" SPECIAL_BUSNAMES_TARGET ".wants/", name, ".busname", NULL);
         if (!lnk)
                 return log_oom();
 
@@ -264,6 +264,21 @@ static int link_busnames_target(const char *units) {
         return 0;
 }
 
+static int link_compatibility(const char *units) {
+        const char *f, *t;
+
+        f = strappenda(units, "/systemd-socket-proxy.socket");
+        t = strappenda(arg_dest, "/" SPECIAL_DBUS_SOCKET);
+
+        mkdir_parents_label(t, 0755);
+        if (symlink(f, t) < 0) {
+                log_error("Failed to create symlink %s: %m", t);
+                return -errno;
+        }
+
+        return 0;
+}
+
 int main(int argc, char *argv[]) {
         const char *path, *type, *units;
         int r, q;
@@ -273,8 +288,10 @@ int main(int argc, char *argv[]) {
                 return EXIT_FAILURE;
         }
 
-        if (argc > 1)
-                arg_dest = argv[3];
+        if (argc > 1) {
+                arg_dest = argv[1];
+                arg_dest_late = argv[3];
+        }
 
         log_set_target(LOG_TARGET_SAFE);
         log_parse_environment();
@@ -306,5 +323,9 @@ int main(int argc, char *argv[]) {
         if (q < 0)
                 r = q;
 
+        q = link_compatibility(units);
+        if (q < 0)
+                r = q;
+
         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 }