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-rw-r--r--src/shared/sleep-config.c182
-rw-r--r--src/shared/sleep-config.h26
-rw-r--r--src/shared/util.c53
-rw-r--r--src/shared/util.h3
4 files changed, 208 insertions, 56 deletions
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
new file mode 100644
index 0000000000..73a3acb8be
--- /dev/null
+++ b/src/shared/sleep-config.c
@@ -0,0 +1,182 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdio.h>
+
+#include "conf-parser.h"
+#include "sleep-config.h"
+#include "fileio.h"
+#include "log.h"
+#include "strv.h"
+#include "util.h"
+
+int parse_sleep_config(const char *verb, char ***modes, char ***states) {
+ _cleanup_strv_free_ char
+ **suspend_mode = NULL, **suspend_state = NULL,
+ **hibernate_mode = NULL, **hibernate_state = NULL,
+ **hybrid_mode = NULL, **hybrid_state = NULL;
+
+ const ConfigTableItem items[] = {
+ { "Sleep", "SuspendMode", config_parse_strv, 0, &suspend_mode },
+ { "Sleep", "SuspendState", config_parse_strv, 0, &suspend_state },
+ { "Sleep", "HibernateMode", config_parse_strv, 0, &hibernate_mode },
+ { "Sleep", "HibernateState", config_parse_strv, 0, &hibernate_state },
+ { "Sleep", "HybridSleepMode", config_parse_strv, 0, &hybrid_mode },
+ { "Sleep", "HybridSleepState", config_parse_strv, 0, &hybrid_state },
+ {}};
+
+ int r;
+ FILE _cleanup_fclose_ *f;
+
+ f = fopen(PKGSYSCONFDIR "/sleep.conf", "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_warning("Failed to open configuration file " PKGSYSCONFDIR "/sleep.conf: %m");
+ return 0;
+ }
+
+ r = config_parse(NULL, PKGSYSCONFDIR "/sleep.conf", f, "Sleep\0",
+ config_item_table_lookup, (void*) items, false, false, NULL);
+ if (r < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ if (streq(verb, "suspend")) {
+ /* empty by default */
+ *modes = suspend_mode;
+
+ if (suspend_state)
+ *states = suspend_state;
+ else
+ *states = strv_split_nulstr("mem\0standby\0freeze\0");
+
+ suspend_mode = suspend_state = NULL;
+ } else if (streq(verb, "hibernate")) {
+ if (hibernate_mode)
+ *modes = hibernate_mode;
+ else
+ *modes = strv_split_nulstr("platform\0shutdown\0");
+
+ if (hibernate_state)
+ *states = hibernate_state;
+ else
+ *states = strv_split_nulstr("disk\0");
+
+ hibernate_mode = hibernate_state = NULL;
+ } else if (streq(verb, "hybrid-sleep")) {
+ if (hybrid_mode)
+ *modes = hybrid_mode;
+ else
+ *modes = strv_split_nulstr("suspend\0platform\0shutdown\0");
+
+ if (hybrid_state)
+ *states = hybrid_state;
+ else
+ *states = strv_split_nulstr("disk\0");
+
+ hybrid_mode = hybrid_state = NULL;
+ } else
+ assert_not_reached("what verb");
+
+ if (!modes || !states) {
+ strv_free(*modes);
+ strv_free(*states);
+ return log_oom();
+ }
+
+ return 0;
+}
+
+int can_sleep_state(char **types) {
+ char *w, *state, **type;
+ int r;
+ _cleanup_free_ char *p = NULL;
+
+ if (strv_isempty(types))
+ return true;
+
+ /* If /sys is read-only we cannot sleep */
+ if (access("/sys/power/state", W_OK) < 0)
+ return false;
+
+ r = read_one_line_file("/sys/power/state", &p);
+ if (r < 0)
+ return false;
+
+ STRV_FOREACH(type, types) {
+ size_t l, k;
+
+ k = strlen(*type);
+ FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state)
+ if (l == k && memcmp(w, *type, l) == 0)
+ return true;
+ }
+
+ return false;
+}
+
+int can_sleep_disk(char **types) {
+ char *w, *state, **type;
+ int r;
+ _cleanup_free_ char *p = NULL;
+
+ if (strv_isempty(types))
+ return true;
+
+ /* If /sys is read-only we cannot sleep */
+ if (access("/sys/power/disk", W_OK) < 0)
+ return false;
+
+ r = read_one_line_file("/sys/power/disk", &p);
+ if (r < 0)
+ return false;
+
+ STRV_FOREACH(type, types) {
+ size_t l, k;
+
+ k = strlen(*type);
+ FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) {
+ if (l == k && memcmp(w, *type, l) == 0)
+ return true;
+
+ if (l == k + 2 && w[0] == '[' && memcmp(w + 1, *type, l - 2) == 0 && w[l-1] == ']')
+ return true;
+ }
+ }
+
+ return false;
+}
+
+int can_sleep(const char *verb) {
+ _cleanup_strv_free_ char **modes = NULL, **states = NULL;
+ int r;
+
+ assert(streq(verb, "suspend") ||
+ streq(verb, "hibernate") ||
+ streq(verb, "hybrid-sleep"));
+
+ r = parse_sleep_config(verb, &modes, &states);
+ if (r < 0)
+ return false;
+
+ return can_sleep_state(states) && can_sleep_disk(modes);
+}
diff --git a/src/shared/sleep-config.h b/src/shared/sleep-config.h
new file mode 100644
index 0000000000..51d2dec7b4
--- /dev/null
+++ b/src/shared/sleep-config.h
@@ -0,0 +1,26 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2013 Zbigniew Jędrzejewski-Szmek
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+int parse_sleep_config(const char *verb, char ***modes, char ***states);
+
+int can_sleep(const char *verb);
+int can_sleep_disk(char **types);
+int can_sleep_state(char **types);
diff --git a/src/shared/util.c b/src/shared/util.c
index 5d01802ed9..00d3ace616 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -5090,59 +5090,6 @@ int getenv_for_pid(pid_t pid, const char *field, char **_value) {
return r;
}
-int can_sleep(const char *type) {
- char *w, *state;
- size_t l, k;
- int r;
- _cleanup_free_ char *p = NULL;
-
- assert(type);
-
- /* If /sys is read-only we cannot sleep */
- if (access("/sys/power/state", W_OK) < 0)
- return false;
-
- r = read_one_line_file("/sys/power/state", &p);
- if (r < 0)
- return false;
-
- k = strlen(type);
- FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state)
- if (l == k && memcmp(w, type, l) == 0)
- return true;
-
- return false;
-}
-
-int can_sleep_disk(const char *type) {
- char *w, *state;
- size_t l, k;
- int r;
- _cleanup_free_ char *p = NULL;
-
- assert(type);
-
- /* If /sys is read-only we cannot sleep */
- if (access("/sys/power/state", W_OK) < 0 ||
- access("/sys/power/disk", W_OK) < 0)
- return false;
-
- r = read_one_line_file("/sys/power/disk", &p);
- if (r < 0)
- return false;
-
- k = strlen(type);
- FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) {
- if (l == k && memcmp(w, type, l) == 0)
- return true;
-
- if (l == k + 2 && w[0] == '[' && memcmp(w + 1, type, l - 2) == 0 && w[l-1] == ']')
- return true;
- }
-
- return false;
-}
-
bool is_valid_documentation_url(const char *url) {
assert(url);
diff --git a/src/shared/util.h b/src/shared/util.h
index 0bcda48b6d..7ef46e8f1e 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -513,9 +513,6 @@ int setrlimit_closest(int resource, const struct rlimit *rlim);
int getenv_for_pid(pid_t pid, const char *field, char **_value);
-int can_sleep(const char *type);
-int can_sleep_disk(const char *type);
-
bool is_valid_documentation_url(const char *url) _pure_;
bool in_initrd(void);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-01 07:42:42 +0000