chiark / gitweb /
bus: add new sd_bus_creds object to encapsulate process credentials
[elogind.git] / src / libsystemd-bus / test-bus-chat.c
index 906a7e646ce7f8ed8834e6bc7543da0d07a19a91..021379f0b0dadb54fa8842e3c36160a4ce867910 100644 (file)
 #include "sd-bus.h"
 #include "bus-message.h"
 #include "bus-error.h"
+#include "bus-match.h"
+#include "bus-internal.h"
+#include "bus-util.h"
 
-static int object_callback(sd_bus *bus, int error, sd_bus_message *m, void *userdata) {
+static int match_callback(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
+        log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m)));
+        return 0;
+}
+
+static int object_callback(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
         int r;
 
         assert(bus);
 
-        if (error != 0)
+        if (sd_bus_message_is_method_error(m, NULL))
                 return 0;
 
         if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) {
-                _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
-
                 log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m));
 
-                r = sd_bus_message_new_method_return(bus, m, &reply);
-                if (r < 0) {
-                        log_error("Failed to allocate return: %s", strerror(-r));
-                        return r;
-                }
-
-                r = sd_bus_send(bus, reply, NULL);
+                r = sd_bus_reply_method_return(m, NULL);
                 if (r < 0) {
                         log_error("Failed to send reply: %s", strerror(-r));
                         return r;
@@ -78,9 +78,9 @@ static int server_init(sd_bus **_bus) {
                 goto fail;
         }
 
-        r = sd_bus_get_peer(bus, &id);
+        r = sd_bus_get_server_id(bus, &id);
         if (r < 0) {
-                log_error("Failed to get peer ID: %s", strerror(-r));
+                log_error("Failed to get server ID: %s", strerror(-r));
                 goto fail;
         }
 
@@ -106,6 +106,20 @@ static int server_init(sd_bus **_bus) {
                 goto fail;
         }
 
+        r = sd_bus_add_match(bus, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL);
+        if (r < 0) {
+                log_error("Failed to add match: %s", strerror(-r));
+                goto fail;
+        }
+
+        r = sd_bus_add_match(bus, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL);
+        if (r < 0) {
+                log_error("Failed to add match: %s", strerror(-r));
+                goto fail;
+        }
+
+        bus_match_dump(&bus->match_callbacks, 0);
+
         *_bus = bus;
         return 0;
 
@@ -121,8 +135,9 @@ static int server(sd_bus *bus) {
         bool client1_gone = false, client2_gone = false;
 
         while (!client1_gone || !client2_gone) {
-                _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+                _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
                 pid_t pid = 0;
+                const char *label = NULL;
 
                 r = sd_bus_process(bus, &m);
                 if (r < 0) {
@@ -143,8 +158,12 @@ static int server(sd_bus *bus) {
                 if (!m)
                         continue;
 
-                sd_bus_message_get_pid(m, &pid);
-                log_info("Got message! member=%s pid=%lu label=%s", strna(sd_bus_message_get_member(m)), (unsigned long) pid, strna(sd_bus_message_get_label(m)));
+                sd_bus_creds_get_pid(sd_bus_message_get_creds(m), &pid);
+                sd_bus_creds_get_selinux_context(sd_bus_message_get_creds(m), &label);
+                log_info("Got message! member=%s pid=%lu label=%s",
+                         strna(sd_bus_message_get_member(m)),
+                         (unsigned long) pid,
+                         strna(label));
                 /* bus_message_dump(m); */
                 /* sd_bus_message_rewind(m, true); */
 
@@ -158,12 +177,6 @@ static int server(sd_bus *bus) {
                                 goto fail;
                         }
 
-                        r = sd_bus_message_new_method_return(bus, m, &reply);
-                        if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
-                                goto fail;
-                        }
-
                         lowercase = strdup(hello);
                         if (!lowercase) {
                                 r = log_oom();
@@ -172,39 +185,39 @@ static int server(sd_bus *bus) {
 
                         ascii_strlower(lowercase);
 
-                        r = sd_bus_message_append(reply, "s", lowercase);
+                        r = sd_bus_reply_method_return(m, "s", lowercase);
                         if (r < 0) {
-                                log_error("Failed to append message: %s", strerror(-r));
+                                log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
                 } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) {
 
-                        r = sd_bus_message_new_method_return(bus, m, &reply);
+                        r = sd_bus_reply_method_return(m, NULL);
                         if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
+                                log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
 
                         client1_gone = true;
                 } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) {
 
-                        r = sd_bus_message_new_method_return(bus, m, &reply);
+                        r = sd_bus_reply_method_return(m, NULL);
                         if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
+                                log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
 
                         client2_gone = true;
                 } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) {
 
-                        r = sd_bus_message_new_method_return(bus, m, &reply);
+                        sleep(1);
+
+                        r = sd_bus_reply_method_return(m, NULL);
                         if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
+                                log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
 
-                        sleep(1);
-
                 } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) {
                         int fd;
                         static const char x = 'X';
@@ -215,40 +228,29 @@ static int server(sd_bus *bus) {
                                 goto fail;
                         }
 
+                        log_info("Received fd=%d", fd);
+
                         if (write(fd, &x, 1) < 0) {
                                 log_error("Failed to write to fd: %m");
                                 close_nointr_nofail(fd);
                                 goto fail;
                         }
 
-                        close_nointr_nofail(fd);
-
-                        r = sd_bus_message_new_method_return(bus, m, &reply);
+                        r = sd_bus_reply_method_return(m, NULL);
                         if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
+                                log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
 
                 } else if (sd_bus_message_is_method_call(m, NULL, NULL)) {
-                        const sd_bus_error e = SD_BUS_ERROR_INIT_CONST("org.freedesktop.DBus.Error.UnknownMethod", "Unknown method.");
 
-                        r = sd_bus_message_new_method_error(bus, m, &e, &reply);
-                        if (r < 0) {
-                                log_error("Failed to allocate return: %s", strerror(-r));
-                                goto fail;
-                        }
-                }
-
-                if (reply) {
-                        r = sd_bus_send(bus, reply, NULL);
+                        r = sd_bus_reply_method_error(
+                                        m,
+                                        &SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_UNKNOWN_METHOD, "Unknown method."));
                         if (r < 0) {
                                 log_error("Failed to send reply: %s", strerror(-r));
                                 goto fail;
                         }
-
-                        /* log_info("Sent"); */
-                        /* bus_message_dump(reply); */
-                        /* sd_bus_message_rewind(reply, true); */
                 }
         }
 
@@ -264,9 +266,9 @@ fail:
 }
 
 static void* client1(void*p) {
-        _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
+        _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
         sd_bus *bus = NULL;
-        sd_bus_error error = SD_BUS_ERROR_INIT;
+        sd_bus_error error = SD_BUS_ERROR_NULL;
         const char *hello;
         int r;
         int pp[2] = { -1, -1 };
@@ -278,27 +280,18 @@ static void* client1(void*p) {
                 goto finish;
         }
 
-        r = sd_bus_message_new_method_call(
+        r = sd_bus_call_method(
                         bus,
                         "org.freedesktop.systemd.test",
                         "/",
                         "org.freedesktop.systemd.test",
                         "LowerCase",
-                        &m);
-        if (r < 0) {
-                log_error("Failed to allocate method call: %s", strerror(-r));
-                goto finish;
-        }
-
-        r = sd_bus_message_append(m, "s", "HELLO");
+                        &error,
+                        &reply,
+                        "s",
+                        "HELLO");
         if (r < 0) {
-                log_error("Failed to append string: %s", strerror(-r));
-                goto finish;
-        }
-
-        r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, &reply);
-        if (r < 0) {
-                log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
+                log_error("Failed to issue method call: %s", strerror(-r));
                 goto finish;
         }
 
@@ -316,31 +309,20 @@ static void* client1(void*p) {
                 goto finish;
         }
 
-        sd_bus_message_unref(m);
-        m = NULL;
-        r = sd_bus_message_new_method_call(
+        log_info("Sending fd=%d", pp[1]);
+
+        r = sd_bus_call_method(
                         bus,
                         "org.freedesktop.systemd.test",
                         "/",
                         "org.freedesktop.systemd.test",
                         "FileDescriptor",
-                        &m);
+                        &error,
+                        NULL,
+                        "h",
+                        pp[1]);
         if (r < 0) {
-                log_error("Failed to allocate method call: %s", strerror(-r));
-                goto finish;
-        }
-
-        r = sd_bus_message_append(m, "h", pp[1]);
-        if (r < 0) {
-                log_error("Failed to append string: %s", strerror(-r));
-                goto finish;
-        }
-
-        sd_bus_message_unref(reply);
-        reply = NULL;
-        r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, &reply);
-        if (r < 0) {
-                log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
+                log_error("Failed to issue method call: %s", strerror(-r));
                 goto finish;
         }
 
@@ -363,12 +345,11 @@ finish:
                                 "org.freedesktop.systemd.test",
                                 "ExitClient1",
                                 &q);
-                if (r < 0) {
+                if (r < 0)
                         log_error("Failed to allocate method call: %s", strerror(-r));
-                        goto finish;
-                }
+                else
+                        sd_bus_send(bus, q, NULL);
 
-                sd_bus_send(bus, q, NULL);
                 sd_bus_flush(bus);
                 sd_bus_unref(bus);
         }
@@ -380,10 +361,10 @@ finish:
         return INT_TO_PTR(r);
 }
 
-static int quit_callback(sd_bus *b, int ret, sd_bus_message *m, void *userdata) {
+static int quit_callback(sd_bus *b, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
         bool *x = userdata;
 
-        log_error("Quit callback: %s", strerror(ret));
+        log_error("Quit callback: %s", strerror(sd_bus_message_get_errno(m)));
 
         *x = 1;
         return 1;
@@ -392,7 +373,7 @@ static int quit_callback(sd_bus *b, int ret, sd_bus_message *m, void *userdata)
 static void* client2(void*p) {
         _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
         sd_bus *bus = NULL;
-        sd_bus_error error = SD_BUS_ERROR_INIT;
+        sd_bus_error error = SD_BUS_ERROR_NULL;
         bool quit = false;
         const char *mid;
         int r;
@@ -424,6 +405,26 @@ static void* client2(void*p) {
         sd_bus_message_unref(m);
         m = NULL;
 
+        r = sd_bus_message_new_signal(
+                        bus,
+                        "/foobar",
+                        "foo.bar",
+                        "Notify",
+                        &m);
+        if (r < 0) {
+                log_error("Failed to allocate signal: %s", strerror(-r));
+                goto finish;
+        }
+
+        r = sd_bus_send(bus, m, NULL);
+        if (r < 0) {
+                log_error("Failed to issue signal: %s", bus_error_message(&error, -r));
+                goto finish;
+        }
+
+        sd_bus_message_unref(m);
+        m = NULL;
+
         r = sd_bus_message_new_method_call(
                         bus,
                         "org.freedesktop.systemd.test",
@@ -436,7 +437,7 @@ static void* client2(void*p) {
                 goto finish;
         }
 
-        r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, &reply);
+        r = sd_bus_call(bus, m, 0, &error, &reply);
         if (r < 0) {
                 log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
                 goto finish;
@@ -468,7 +469,7 @@ static void* client2(void*p) {
         sd_bus_message_unref(reply);
         reply = NULL;
 
-        r = sd_bus_send_with_reply_and_block(bus, m, 200 * USEC_PER_MSEC, &error, &reply);
+        r = sd_bus_call(bus, m, 200 * USEC_PER_MSEC, &error, &reply);
         if (r < 0)
                 log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
         else
@@ -489,7 +490,7 @@ static void* client2(void*p) {
                 goto finish;
         }
 
-        r = sd_bus_send_with_reply(bus, m, quit_callback, &quit, 200 * USEC_PER_MSEC, NULL);
+        r = sd_bus_call_async(bus, m, quit_callback, &quit, 200 * USEC_PER_MSEC, NULL);
         if (r < 0) {
                 log_info("Failed to issue method call: %s", bus_error_message(&error, -r));
                 goto finish;