chiark / gitweb /
journal: introduce log target 'journal' for executed processes
[elogind.git] / src / main.c
index 40d03ca792bff5ead95587a219d040f299e063bc..575e5ea33f0e0c0f460b00699b3c8de0e22a0010 100644 (file)
@@ -52,6 +52,7 @@
 #include "build.h"
 #include "strv.h"
 #include "def.h"
+#include "virt.h"
 
 static enum {
         ACTION_RUN,
@@ -75,7 +76,8 @@ static bool arg_sysv_console = true;
 static bool arg_mount_auto = true;
 static bool arg_swap_auto = true;
 static char **arg_default_controllers = NULL;
-static ExecOutput arg_default_std_output = EXEC_OUTPUT_INHERIT;
+static char ***arg_join_controllers = NULL;
+static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL;
 static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
 
 static FILE* serialization = NULL;
@@ -346,9 +348,9 @@ static int parse_proc_cmdline_word(const char *word) {
                          "systemd.log_level=LEVEL                  Log level\n"
                          "systemd.log_color=0|1                    Highlight important log messages\n"
                          "systemd.log_location=0|1                 Include code location in log messages\n"
-                         "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+                         "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
                          "                                         Set default log output for services\n"
-                         "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+                         "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n"
                          "                                         Set default log error output for services\n");
 
         } else if (streq(word, "quiet")) {
@@ -368,7 +370,7 @@ static int parse_proc_cmdline_word(const char *word) {
         return 0;
 }
 
-static int config_parse_level(
+static int config_parse_level2(
                 const char *filename,
                 unsigned line,
                 const char *section,
@@ -440,7 +442,7 @@ static int config_parse_location(
         return 0;
 }
 
-static int config_parse_cpu_affinity(
+static int config_parse_cpu_affinity2(
                 const char *filename,
                 unsigned line,
                 const char *section,
@@ -494,34 +496,146 @@ static int config_parse_cpu_affinity(
         return 0;
 }
 
-static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
+static void strv_free_free(char ***l) {
+        char ***i;
+
+        if (!l)
+                return;
+
+        for (i = l; *i; i++)
+                strv_free(*i);
+
+        free(l);
+}
+
+static void free_join_controllers(void) {
+        if (!arg_join_controllers)
+                return;
+
+        strv_free_free(arg_join_controllers);
+        arg_join_controllers = NULL;
+}
+
+static int config_parse_join_controllers(
+                const char *filename,
+                unsigned line,
+                const char *section,
+                const char *lvalue,
+                int ltype,
+                const char *rvalue,
+                void *data,
+                void *userdata) {
+
+        unsigned n = 0;
+        char *state, *w;
+        size_t length;
+
+        assert(filename);
+        assert(lvalue);
+        assert(rvalue);
+
+        free_join_controllers();
+
+        FOREACH_WORD_QUOTED(w, length, rvalue, state) {
+                char *s, **l;
+
+                s = strndup(w, length);
+                if (!s)
+                        return -ENOMEM;
+
+                l = strv_split(s, ",");
+                free(s);
+
+                strv_uniq(l);
+
+                if (strv_length(l) <= 1) {
+                        strv_free(l);
+                        continue;
+                }
+
+                if (!arg_join_controllers) {
+                        arg_join_controllers = new(char**, 2);
+                        if (!arg_join_controllers) {
+                                strv_free(l);
+                                return -ENOMEM;
+                        }
+
+                        arg_join_controllers[0] = l;
+                        arg_join_controllers[1] = NULL;
+
+                        n = 1;
+                } else {
+                        char ***a;
+                        char ***t;
+
+                        t = new0(char**, n+2);
+                        if (!t) {
+                                strv_free(l);
+                                return -ENOMEM;
+                        }
+
+                        n = 0;
+
+                        for (a = arg_join_controllers; *a; a++) {
+
+                                if (strv_overlap(*a, l)) {
+                                        char **c;
+
+                                        c = strv_merge(*a, l);
+                                        if (!c) {
+                                                strv_free(l);
+                                                strv_free_free(t);
+                                                return -ENOMEM;
+                                        }
+
+                                        strv_free(l);
+                                        l = c;
+                                } else {
+                                        char **c;
+
+                                        c = strv_copy(*a);
+                                        if (!c) {
+                                                strv_free(l);
+                                                strv_free_free(t);
+                                                return -ENOMEM;
+                                        }
+
+                                        t[n++] = c;
+                                }
+                        }
+
+                        t[n++] = strv_uniq(l);
+
+                        strv_free_free(arg_join_controllers);
+                        arg_join_controllers = t;
+                }
+        }
+
+        return 0;
+}
 
 static int parse_config_file(void) {
 
-        const ConfigItem items[] = {
-                { "LogLevel",              config_parse_level,        0, NULL,                     "Manager" },
-                { "LogTarget",             config_parse_target,       0, NULL,                     "Manager" },
-                { "LogColor",              config_parse_color,        0, NULL,                     "Manager" },
-                { "LogLocation",           config_parse_location,     0, NULL,                     "Manager" },
-                { "DumpCore",              config_parse_bool,         0, &arg_dump_core,           "Manager" },
-                { "CrashShell",            config_parse_bool,         0, &arg_crash_shell,         "Manager" },
-                { "ShowStatus",            config_parse_bool,         0, &arg_show_status,         "Manager" },
+        const ConfigTableItem items[] = {
+                { "Manager", "LogLevel",              config_parse_level2,       0, NULL                     },
+                { "Manager", "LogTarget",             config_parse_target,       0, NULL                     },
+                { "Manager", "LogColor",              config_parse_color,        0, NULL                     },
+                { "Manager", "LogLocation",           config_parse_location,     0, NULL                     },
+                { "Manager", "DumpCore",              config_parse_bool,         0, &arg_dump_core           },
+                { "Manager", "CrashShell",            config_parse_bool,         0, &arg_crash_shell         },
+                { "Manager", "ShowStatus",            config_parse_bool,         0, &arg_show_status         },
 #ifdef HAVE_SYSV_COMPAT
-                { "SysVConsole",           config_parse_bool,         0, &arg_sysv_console,        "Manager" },
+                { "Manager", "SysVConsole",           config_parse_bool,         0, &arg_sysv_console        },
 #endif
-                { "CrashChVT",             config_parse_int,          0, &arg_crash_chvt,          "Manager" },
-                { "CPUAffinity",           config_parse_cpu_affinity, 0, NULL,                     "Manager" },
-                { "MountAuto",             config_parse_bool,         0, &arg_mount_auto,          "Manager" },
-                { "SwapAuto",              config_parse_bool,         0, &arg_swap_auto,           "Manager" },
-                { "DefaultControllers",    config_parse_strv,         0, &arg_default_controllers, "Manager" },
-                { "DefaultStandardOutput", config_parse_output,       0, &arg_default_std_output,  "Manager" },
-                { "DefaultStandardError",  config_parse_output,       0, &arg_default_std_error,   "Manager" },
-                { NULL, NULL, 0, NULL, NULL }
-        };
-
-        static const char * const sections[] = {
-                "Manager",
-                NULL
+                { "Manager", "CrashChVT",             config_parse_int,          0, &arg_crash_chvt          },
+                { "Manager", "CPUAffinity",           config_parse_cpu_affinity2, 0, NULL                    },
+                { "Manager", "MountAuto",             config_parse_bool,         0, &arg_mount_auto          },
+                { "Manager", "SwapAuto",              config_parse_bool,         0, &arg_swap_auto           },
+                { "Manager", "DefaultControllers",    config_parse_strv,         0, &arg_default_controllers },
+                { "Manager", "DefaultStandardOutput", config_parse_output,       0, &arg_default_std_output  },
+                { "Manager", "DefaultStandardError",  config_parse_output,       0, &arg_default_std_error   },
+                { "Manager", "JoinControllers",       config_parse_join_controllers, 0, &arg_join_controllers },
+                { NULL, NULL, NULL, 0, NULL }
         };
 
         FILE *f;
@@ -529,8 +643,8 @@ static int parse_config_file(void) {
         int r;
 
         fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE;
-
-        if (!(f = fopen(fn, "re"))) {
+        f = fopen(fn, "re");
+        if (!f) {
                 if (errno == ENOENT)
                         return 0;
 
@@ -538,7 +652,8 @@ static int parse_config_file(void) {
                 return 0;
         }
 
-        if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0)
+        r = config_parse(fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL);
+        if (r < 0)
                 log_warning("Failed to parse configuration file: %s", strerror(-r));
 
         fclose(f);
@@ -1042,8 +1157,8 @@ int main(int argc, char *argv[]) {
 
         for (j = 1; j < argc; j++)
                 if (streq(argv[j], "--deserialize")) {
-                        break;
                         is_reexec = true;
+                        break;
                 }
 
         /* If we get started via the /sbin/init symlink then we are
@@ -1090,14 +1205,28 @@ int main(int argc, char *argv[]) {
                 log_open();
         }
 
+        /* Initialize default unit */
         if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0)
                 goto finish;
 
+        /* By default, mount "cpu" and "cpuacct" together */
+        arg_join_controllers = new(char**, 2);
+        if (!arg_join_controllers)
+                goto finish;
+
+        arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL);
+        arg_join_controllers[1] = NULL;
+
+        if (!arg_join_controllers[0])
+                goto finish;
+
         /* Mount /proc, /sys and friends, so that /proc/cmdline and
          * /proc/$PID/fd is available. */
-        if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
-                if (mount_setup(loaded_policy) < 0)
+        if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) {
+                r = mount_setup(loaded_policy);
+                if (r < 0)
                         goto finish;
+        }
 
         /* Reset all signal handlers. */
         assert_se(reset_all_signal_handlers() == 0);
@@ -1205,6 +1334,12 @@ int main(int argc, char *argv[]) {
         if (getpid() == 1)
                 install_crash_handler();
 
+        if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) {
+                r = mount_cgroup_controllers(arg_join_controllers);
+                if (r < 0)
+                        goto finish;
+        }
+
         log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
                  PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
 
@@ -1230,7 +1365,6 @@ int main(int argc, char *argv[]) {
         }
 
         m->confirm_spawn = arg_confirm_spawn;
-        m->show_status = arg_show_status;
 #ifdef HAVE_SYSV_COMPAT
         m->sysv_console = arg_sysv_console;
 #endif
@@ -1245,6 +1379,8 @@ int main(int argc, char *argv[]) {
         if (arg_default_controllers)
                 manager_set_default_controllers(m, arg_default_controllers);
 
+        manager_set_show_status(m, arg_show_status);
+
         before_startup = now(CLOCK_MONOTONIC);
 
         if ((r = manager_startup(m, serialization, fds)) < 0)
@@ -1306,6 +1442,11 @@ int main(int argc, char *argv[]) {
                         goto finish;
                 }
 
+                after_startup = now(CLOCK_MONOTONIC);
+                log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG,
+                         "Loaded units and determined initial transaction in %s.",
+                          format_timespan(timespan, sizeof(timespan), after_startup - before_startup));
+
                 if (arg_action == ACTION_TEST) {
                         printf("-> By jobs:\n");
                         manager_dump_jobs(m, stdout, "\t");
@@ -1314,10 +1455,6 @@ int main(int argc, char *argv[]) {
                 }
         }
 
-        after_startup = now(CLOCK_MONOTONIC);
-        log_debug("Loaded units and determined initial transaction in %s.",
-                  format_timespan(timespan, sizeof(timespan), after_startup - before_startup));
-
         for (;;) {
                 if ((r = manager_loop(m)) < 0) {
                         log_error("Failed to run mainloop: %s", strerror(-r));
@@ -1373,6 +1510,7 @@ finish:
 
         free(arg_default_unit);
         strv_free(arg_default_controllers);
+        free_join_controllers();
 
         dbus_shutdown();