X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flogin%2Flogind-action.c;h=9b2ec6e24258652fee94f4732886ba743e01b19f;hp=ce7f681040038f13ee6391018452cdc4e9a96925;hb=c73bfb05cb09992935ede3247a1cc4726e54a44d;hpb=06ca7594edc2bf54a32f0fe86fc65976c70f1f11

diff --git a/src/login/logind-action.c b/src/login/logind-action.c
index ce7f68104..9b2ec6e24 100644
--- a/src/login/logind-action.c
+++ b/src/login/logind-action.c
@@ -21,12 +21,19 @@
 
 #include <unistd.h>
 
+#include "sd-messages.h"
+#include "util.h"
+#include "strv.h"
+#include "fileio.h"
 #include "conf-parser.h"
-#include "special.h"
+// #include "special.h"
 #include "sleep-config.h"
-#include "bus-util.h"
 #include "bus-error.h"
+#include "bus-util.h"
 #include "logind-action.h"
+// #include "formats-util.h"
+#include "process-util.h"
+#include "terminal-util.h"
 
 int manager_handle_action(
                 Manager *m,
@@ -45,6 +52,19 @@ int manager_handle_action(
                 [HANDLE_HYBRID_SLEEP] = "Hibernating and suspending..."
         };
 
+/// elogind does this itself. No target table required
+#if 0
+        static const char * const target_table[_HANDLE_ACTION_MAX] = {
+                [HANDLE_POWEROFF] = SPECIAL_POWEROFF_TARGET,
+                [HANDLE_REBOOT] = SPECIAL_REBOOT_TARGET,
+                [HANDLE_HALT] = SPECIAL_HALT_TARGET,
+                [HANDLE_KEXEC] = SPECIAL_KEXEC_TARGET,
+                [HANDLE_SUSPEND] = SPECIAL_SUSPEND_TARGET,
+                [HANDLE_HIBERNATE] = SPECIAL_HIBERNATE_TARGET,
+                [HANDLE_HYBRID_SLEEP] = SPECIAL_HYBRID_SLEEP_TARGET
+        };
+#endif // 0
+
         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
         InhibitWhat inhibit_operation;
         Inhibitor *offending = NULL;
@@ -134,13 +154,17 @@ int manager_handle_action(
                           offending->uid, strna(u),
                           offending->pid, strna(comm));
 
-                warn_melody();
                 return -EPERM;
         }
 
         log_info("%s", message_table[handle]);
 
+/// elogind uses its own variant, which can use the handle directly.
+#if 0
+        r = bus_manager_shutdown_or_sleep_now_or_later(m, target_table[handle], inhibit_operation, &error);
+#else
         r = bus_manager_shutdown_or_sleep_now_or_later(m, handle, inhibit_operation, &error);
+#endif // 0
         if (r < 0) {
                 log_error("Failed to execute operation: %s", bus_error_message(&error, r));
                 return r;
@@ -149,6 +173,143 @@ int manager_handle_action(
         return 1;
 }
 
+static int run_helper(const char *helper) {
+        int pid = fork();
+        if (pid < 0) {
+                return log_error_errno(errno, "Failed to fork: %m");
+        }
+
+        if (pid == 0) {
+                /* Child */
+
+                close_all_fds(NULL, 0);
+
+                execlp(helper, helper, NULL);
+                log_error_errno(errno, "Failed to execute %s: %m", helper);
+                _exit(EXIT_FAILURE);
+        }
+
+        return wait_for_terminate_and_warn(helper, pid, true);
+}
+
+static int write_mode(char **modes) {
+        int r = 0;
+        char **mode;
+
+        STRV_FOREACH(mode, modes) {
+                int k;
+
+                k = write_string_file("/sys/power/disk", *mode, 0);
+                if (k == 0)
+                        return 0;
+
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/disk: %m",
+                                *mode);
+                if (r == 0)
+                        r = k;
+        }
+
+        if (r < 0)
+                log_error_errno(r, "Failed to write mode to /sys/power/disk: %m");
+
+        return r;
+}
+
+static int write_state(FILE **f, char **states) {
+        char **state;
+        int r = 0;
+
+        STRV_FOREACH(state, states) {
+                int k;
+
+                k = write_string_stream(*f, *state, true);
+                if (k == 0)
+                        return 0;
+                log_debug_errno(k, "Failed to write '%s' to /sys/power/state: %m",
+                                *state);
+                if (r == 0)
+                        r = k;
+
+                fclose(*f);
+                *f = fopen("/sys/power/state", "we");
+                if (!*f)
+                        return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+        }
+
+        return r;
+}
+
+static int do_sleep(const char *arg_verb, char **modes, char **states) {
+        char *arguments[] = {
+                NULL,
+                (char*) "pre",
+                (char*) arg_verb,
+                NULL
+        };
+        static const char* const dirs[] = {SYSTEM_SLEEP_PATH, NULL};
+
+        int r;
+        _cleanup_fclose_ FILE *f = NULL;
+
+        /* This file is opened first, so that if we hit an error,
+         * we can abort before modifying any state. */
+        f = fopen("/sys/power/state", "we");
+        if (!f)
+                return log_error_errno(errno, "Failed to open /sys/power/state: %m");
+
+        /* Configure the hibernation mode */
+        r = write_mode(modes);
+        if (r < 0)
+                return r;
+
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+        log_struct(LOG_INFO,
+                   LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_START),
+                   LOG_MESSAGE("Suspending system..."),
+                   "SLEEP=%s", arg_verb,
+                   NULL);
+
+        r = write_state(&f, states);
+        if (r < 0)
+                return r;
+
+        log_struct(LOG_INFO,
+                   LOG_MESSAGE_ID(SD_MESSAGE_SLEEP_STOP),
+                   LOG_MESSAGE("System resumed."),
+                   "SLEEP=%s", arg_verb,
+                   NULL);
+
+        arguments[1] = (char*) "post";
+        execute_directories(dirs, DEFAULT_TIMEOUT_USEC, arguments);
+
+        return r;
+}
+
+int shutdown_or_sleep(Manager *m, HandleAction action) {
+
+        assert(m);
+
+        switch (action) {
+        case HANDLE_POWEROFF:
+                return run_helper(HALT);
+        case HANDLE_REBOOT:
+                return run_helper(REBOOT);
+        case HANDLE_HALT:
+                return run_helper(HALT);
+        case HANDLE_KEXEC:
+                return run_helper(KEXEC);
+        case HANDLE_SUSPEND:
+                return do_sleep("suspend", m->suspend_mode, m->suspend_state);
+        case HANDLE_HIBERNATE:
+                return do_sleep("hibernate", m->hibernate_mode, m->hibernate_state);
+        case HANDLE_HYBRID_SLEEP:
+                return do_sleep("hybrid-sleep", m->hybrid_sleep_mode, m->hybrid_sleep_state);
+        default:
+                return -EINVAL;
+        }
+}
+
 static const char* const handle_action_table[_HANDLE_ACTION_MAX] = {
         [HANDLE_IGNORE] = "ignore",
         [HANDLE_POWEROFF] = "poweroff",