chiark / gitweb /
sd-bus: rename sd_bus_get_owner_id() → sd_bus_get_bus_id()
[elogind.git] / src / libsystemd / sd-bus / busctl.c
index 2cea21ed59d184220405b06e002c8f68dc5118c7..f75a9dcbd3b5e82f93db1077b3a38612079ed791 100644 (file)
@@ -56,6 +56,7 @@ static bool arg_verbose = false;
 static bool arg_expect_reply = true;
 static bool arg_auto_start = true;
 static bool arg_allow_interactive_authorization = true;
+static bool arg_augment_creds = true;
 static usec_t arg_timeout = 0;
 
 static void pager_open_if_enabled(void) {
@@ -67,6 +68,9 @@ static void pager_open_if_enabled(void) {
         pager_open(false);
 }
 
+#define NAME_IS_ACQUIRED INT_TO_PTR(1)
+#define NAME_IS_ACTIVATABLE INT_TO_PTR(2)
+
 static int list_bus_names(sd_bus *bus, char **argv) {
         _cleanup_strv_free_ char **acquired = NULL, **activatable = NULL;
         _cleanup_free_ char **merged = NULL;
@@ -85,10 +89,8 @@ static int list_bus_names(sd_bus *bus, char **argv) {
                 arg_unique = arg_acquired = arg_activatable = true;
 
         r = sd_bus_list_names(bus, (arg_acquired || arg_unique) ? &acquired : NULL, arg_activatable ? &activatable : NULL);
-        if (r < 0) {
-                log_error("Failed to list names: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to list names: %m");
 
         pager_open_if_enabled();
 
@@ -99,21 +101,17 @@ static int list_bus_names(sd_bus *bus, char **argv) {
         STRV_FOREACH(i, acquired) {
                 max_i = MAX(max_i, strlen(*i));
 
-                r = hashmap_put(names, *i, INT_TO_PTR(1));
-                if (r < 0) {
-                        log_error("Failed to add to hashmap: %s", strerror(-r));
-                        return r;
-                }
+                r = hashmap_put(names, *i, NAME_IS_ACQUIRED);
+                if (r < 0)
+                        return log_error_errno(r, "Failed to add to hashmap: %m");
         }
 
         STRV_FOREACH(i, activatable) {
                 max_i = MAX(max_i, strlen(*i));
 
-                r = hashmap_put(names, *i, INT_TO_PTR(2));
-                if (r < 0 && r != -EEXIST) {
-                        log_error("Failed to add to hashmap: %s", strerror(-r));
-                        return r;
-                }
+                r = hashmap_put(names, *i, NAME_IS_ACTIVATABLE);
+                if (r < 0 && r != -EEXIST)
+                        return log_error_errno(r, "Failed to add to hashmap: %m");
         }
 
         merged = new(char*, hashmap_size(names) + 1);
@@ -137,7 +135,7 @@ static int list_bus_names(sd_bus *bus, char **argv) {
                 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
                 sd_id128_t mid;
 
-                if (hashmap_get(names, *i) == INT_TO_PTR(2)) {
+                if (hashmap_get(names, *i) == NAME_IS_ACTIVATABLE) {
                         /* Activatable */
 
                         printf("%-*s", (int) max_i, *i);
@@ -158,10 +156,12 @@ static int list_bus_names(sd_bus *bus, char **argv) {
 
                 printf("%-*s", (int) max_i, *i);
 
-                r = sd_bus_get_name_creds(bus, *i,
-                                     SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
-                                     SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
-                                     SD_BUS_CREDS_DESCRIPTION, &creds);
+                r = sd_bus_get_name_creds(
+                                bus, *i,
+                                (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
+                                SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
+                                SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
+                                SD_BUS_CREDS_DESCRIPTION, &creds);
                 if (r >= 0) {
                         const char *unique, *session, *unit, *cn;
                         pid_t pid;
@@ -432,10 +432,8 @@ static int tree(sd_bus *bus, char **argv) {
                 bool not_first = false;
 
                 r = sd_bus_list_names(bus, &names, NULL);
-                if (r < 0) {
-                        log_error("Failed to get name list: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to get name list: %m");
 
                 pager_open_if_enabled();
 
@@ -1089,40 +1087,32 @@ static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FIL
                         return log_oom();
 
                 r = sd_bus_add_match(bus, NULL, m, NULL, NULL);
-                if (r < 0) {
-                        log_error("Failed to add match: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to add match: %m");
 
                 added_something = true;
         }
 
         STRV_FOREACH(i, arg_matches) {
                 r = sd_bus_add_match(bus, NULL, *i, NULL, NULL);
-                if (r < 0) {
-                        log_error("Failed to add match: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to add match: %m");
 
                 added_something = true;
         }
 
         if (!added_something) {
                 r = sd_bus_add_match(bus, NULL, "", NULL, NULL);
-                if (r < 0) {
-                        log_error("Failed to add match: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to add match: %m");
         }
 
         for (;;) {
                 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
 
                 r = sd_bus_process(bus, &m);
-                if (r < 0) {
-                        log_error("Failed to process bus: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to process bus: %m");
 
                 if (m) {
                         dump(m, stdout);
@@ -1133,10 +1123,8 @@ static int monitor(sd_bus *bus, char *argv[], int (*dump)(sd_bus_message *m, FIL
                         continue;
 
                 r = sd_bus_wait(bus, (uint64_t) -1);
-                if (r < 0) {
-                        log_error("Failed to wait for bus: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to wait for bus: %m");
         }
 }
 
@@ -1169,22 +1157,45 @@ static int status(sd_bus *bus, char *argv[]) {
 
         assert(bus);
 
-        if (strv_length(argv) != 2) {
-                log_error("Expects one argument.");
+        if (strv_length(argv) > 2) {
+                log_error("Expects no or one argument.");
                 return -EINVAL;
         }
 
-        r = parse_pid(argv[1], &pid);
-        if (r < 0)
-                r = sd_bus_get_name_creds(bus, argv[1], _SD_BUS_CREDS_ALL, &creds);
-        else
-                r = sd_bus_creds_new_from_pid(&creds, pid, _SD_BUS_CREDS_ALL);
+        if (argv[1]) {
+                r = parse_pid(argv[1], &pid);
+                if (r < 0)
+                        r = sd_bus_get_name_creds(
+                                        bus,
+                                        argv[1],
+                                        (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
+                                        &creds);
+                else
+                        r = sd_bus_creds_new_from_pid(
+                                        &creds,
+                                        pid,
+                                        _SD_BUS_CREDS_ALL);
+        } else {
+                const char *scope;
+                sd_id128_t bus_id;
 
-        if (r < 0) {
-                log_error("Failed to get credentials: %s", strerror(-r));
-                return r;
+                r = sd_bus_get_scope(bus, &scope);
+                if (r >= 0)
+                        printf("Scope=%s%s%s\n", ansi_highlight(), scope, ansi_highlight_off());
+
+                r = sd_bus_get_bus_id(bus, &bus_id);
+                if (r >= 0)
+                        printf("BusID=%s" SD_ID128_FORMAT_STR "%s\n", ansi_highlight(), SD_ID128_FORMAT_VAL(bus_id), ansi_highlight_off());
+
+                r = sd_bus_get_owner_creds(
+                                bus,
+                                (arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
+                                &creds);
         }
 
+        if (r < 0)
+                return log_error_errno(r, "Failed to get credentials: %m");
+
         bus_creds_dump(creds, NULL, false);
         return 0;
 }
@@ -1661,10 +1672,11 @@ static int help(void) {
                "     --auto-start=BOOL    Auto-start destination service\n"
                "     --allow-interactive-authorization=BOOL\n"
                "                          Allow interactive authorization for operation\n"
-               "     --timeout=SECS       Maximum time to wait for method call completion\n\n"
+               "     --timeout=SECS       Maximum time to wait for method call completion\n"
+               "     --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
                "Commands:\n"
                "  list                    List bus names\n"
-               "  status SERVICE          Show service name status\n"
+               "  status [SERVICE]        Show bus service, process or bus owner credentials\n"
                "  monitor [SERVICE...]    Show bus traffic\n"
                "  capture [SERVICE...]    Capture bus traffic as pcap\n"
                "  tree [SERVICE...]       Show object tree of service\n"
@@ -1702,6 +1714,7 @@ static int parse_argv(int argc, char *argv[]) {
                 ARG_AUTO_START,
                 ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
                 ARG_TIMEOUT,
+                ARG_AUGMENT_CREDS,
         };
 
         static const struct option options[] = {
@@ -1727,6 +1740,7 @@ static int parse_argv(int argc, char *argv[]) {
                 { "auto-start",   required_argument, NULL, ARG_AUTO_START   },
                 { "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
                 { "timeout",      required_argument, NULL, ARG_TIMEOUT      },
+                { "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
                 {},
         };
 
@@ -1869,6 +1883,16 @@ static int parse_argv(int argc, char *argv[]) {
 
                         break;
 
+                case ARG_AUGMENT_CREDS:
+                        r = parse_boolean(optarg);
+                        if (r < 0) {
+                                log_error("Failed to parse --augment-creds= parameter.");
+                                return r;
+                        }
+
+                        arg_augment_creds = !!r;
+                        break;
+
                 case '?':
                         return -EINVAL;
 
@@ -1930,7 +1954,7 @@ int main(int argc, char *argv[]) {
 
         r = sd_bus_new(&bus);
         if (r < 0) {
-                log_error("Failed to allocate bus: %s", strerror(-r));
+                log_error_errno(r, "Failed to allocate bus: %m");
                 goto finish;
         }
 
@@ -1939,25 +1963,25 @@ int main(int argc, char *argv[]) {
 
                 r = sd_bus_set_monitor(bus, true);
                 if (r < 0) {
-                        log_error("Failed to set monitor mode: %s", strerror(-r));
+                        log_error_errno(r, "Failed to set monitor mode: %m");
                         goto finish;
                 }
 
-                r = sd_bus_negotiate_creds(bus, _SD_BUS_CREDS_ALL);
+                r = sd_bus_negotiate_creds(bus, true, _SD_BUS_CREDS_ALL);
                 if (r < 0) {
-                        log_error("Failed to enable credentials: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enable credentials: %m");
                         goto finish;
                 }
 
                 r = sd_bus_negotiate_timestamp(bus, true);
                 if (r < 0) {
-                        log_error("Failed to enable timestamps: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enable timestamps: %m");
                         goto finish;
                 }
 
                 r = sd_bus_negotiate_fds(bus, true);
                 if (r < 0) {
-                        log_error("Failed to enable fds: %s", strerror(-r));
+                        log_error_errno(r, "Failed to enable fds: %m");
                         goto finish;
                 }
         }
@@ -1967,17 +1991,20 @@ int main(int argc, char *argv[]) {
         else {
                 r = sd_bus_set_bus_client(bus, true);
                 if (r < 0) {
-                        log_error("Failed to set bus client: %s", strerror(-r));
+                        log_error_errno(r, "Failed to set bus client: %m");
                         goto finish;
                 }
 
                 switch (arg_transport) {
 
                 case BUS_TRANSPORT_LOCAL:
-                        if (arg_user)
+                        if (arg_user) {
+                                bus->is_user = true;
                                 r = bus_set_address_user(bus);
-                        else
+                        } else {
+                                bus->is_system = true;
                                 r = bus_set_address_system(bus);
+                        }
                         break;
 
                 case BUS_TRANSPORT_REMOTE:
@@ -1993,13 +2020,13 @@ int main(int argc, char *argv[]) {
                 }
         }
         if (r < 0) {
-                log_error("Failed to set address: %s", strerror(-r));
+                log_error_errno(r, "Failed to set address: %m");
                 goto finish;
         }
 
         r = sd_bus_start(bus);
         if (r < 0) {
-                log_error("Failed to connect to bus: %s", strerror(-r));
+                log_error_errno(r, "Failed to connect to bus: %m");
                 goto finish;
         }