/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
-#include <string.h>
#include <unistd.h>
-#include <stdio_ext.h>
+#include <sys/stat.h>
#include "sd-messages.h"
#include "alloc-util.h"
#include "bus-error.h"
#include "bus-util.h"
+#include "env-file.h"
+#include "errno-util.h"
#include "escape.h"
#include "extract-word.h"
#include "fd-util.h"
#include "machine.h"
#include "mkdir.h"
#include "parse-util.h"
+#include "path-util.h"
#include "process-util.h"
#include "serialize.h"
#include "special.h"
#include "stdio-util.h"
#include "string-table.h"
#include "terminal-util.h"
+#include "tmpfile-util.h"
#include "unit-name.h"
#include "user-util.h"
#include "util.h"
goto fail;
if (class != MACHINE_HOST) {
- m->state_file = strappend("/run/systemd/machines/", m->name);
+ m->state_file = path_join("/run/systemd/machines", m->name);
if (!m->state_file)
goto fail;
}
return mfree(m);
}
-void machine_free(Machine *m) {
- assert(m);
+Machine* machine_free(Machine *m) {
+ if (!m)
+ return NULL;
while (m->operations)
operation_free(m->operations);
free(m->service);
free(m->root_directory);
free(m->netif);
- free(m);
+ return mfree(m);
}
int machine_save(Machine *m) {
if (r < 0)
goto fail;
- (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
(void) fchmod(fileno(f), 0644);
fprintf(f,
if (!m->state_file)
return 0;
- r = parse_env_file(NULL, m->state_file, NEWLINE,
+ r = parse_env_file(NULL, m->state_file,
"SCOPE", &m->unit,
"SCOPE_JOB", &m->scope_job,
"SERVICE", &m->service,
"CLASS", &class,
"REALTIME", &realtime,
"MONOTONIC", &monotonic,
- "NETIF", &netif,
- NULL);
+ "NETIF", &netif);
if (r < 0) {
if (r == -ENOENT)
return 0;
return r;
}
-static int machine_start_scope(Machine *m, sd_bus_message *properties, sd_bus_error *error) {
- assert(m);
- assert(m->class != MACHINE_HOST);
+static int machine_start_scope(
+ Machine *machine,
+ sd_bus_message *more_properties,
+ sd_bus_error *error) {
- if (!m->unit) {
- _cleanup_free_ char *escaped = NULL, *scope = NULL;
- char *description, *job = NULL;
- int r;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
+ _cleanup_free_ char *escaped = NULL, *unit = NULL;
+ const char *description;
+ int r;
+
+ assert(machine);
+ assert(machine->leader > 0);
+ assert(!machine->unit);
+
+ escaped = unit_name_escape(machine->name);
+ if (!escaped)
+ return log_oom();
+
+ unit = strjoin("machine-", escaped, ".scope");
+ if (!unit)
+ return log_oom();
+
+ r = sd_bus_message_new_method_call(
+ machine->manager->bus,
+ &m,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartTransientUnit");
+ if (r < 0)
+ return r;
- escaped = unit_name_escape(m->name);
- if (!escaped)
- return log_oom();
+ r = sd_bus_message_append(m, "ss", unit, "fail");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(m, 'a', "(sv)");
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "(sv)", "Slice", "s", SPECIAL_MACHINE_SLICE);
+ if (r < 0)
+ return r;
- scope = strjoin("machine-", escaped, ".scope");
- if (!scope)
- return log_oom();
+ description = strjoina(machine->class == MACHINE_VM ? "Virtual Machine " : "Container ", machine->name);
+ r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
+ if (r < 0)
+ return r;
- description = strjoina(m->class == MACHINE_VM ? "Virtual Machine " : "Container ", m->name);
+ r = sd_bus_message_append(m, "(sv)(sv)(sv)(sv)(sv)",
+ "PIDs", "au", 1, machine->leader,
+ "Delegate", "b", 1,
+ "CollectMode", "s", "inactive-or-failed",
+ "AddRef", "b", 1,
+ "TasksMax", "t", UINT64_C(16384));
+ if (r < 0)
+ return r;
- r = manager_start_scope(m->manager, scope, m->leader, SPECIAL_MACHINE_SLICE, description, properties, error, &job);
+ if (more_properties) {
+ r = sd_bus_message_copy(m, more_properties, true);
if (r < 0)
- return log_error_errno(r, "Failed to start machine scope: %s", bus_error_message(error, r));
+ return r;
+ }
- m->unit = TAKE_PTR(scope);
- free_and_replace(m->scope_job, job);
+ r = sd_bus_message_close_container(m);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_append(m, "a(sa(sv))", 0);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_call(NULL, m, 0, error, &reply);
+ if (r < 0)
+ return r;
+
+ machine->unit = TAKE_PTR(unit);
+ machine->referenced = true;
+
+ const char *job;
+ r = sd_bus_message_read(reply, "o", &job);
+ if (r < 0)
+ return r;
+
+ return free_and_strdup(&machine->scope_job, job);
+}
+
+static int machine_ensure_scope(Machine *m, sd_bus_message *properties, sd_bus_error *error) {
+ int r;
+
+ assert(m);
+ assert(m->class != MACHINE_HOST);
+
+ if (!m->unit) {
+ r = machine_start_scope(m, properties, error);
+ if (r < 0)
+ return log_error_errno(r, "Failed to start machine scope: %s", bus_error_message(error, r));
}
- if (m->unit)
- hashmap_put(m->manager->machine_units, m->unit, m);
+ assert(m->unit);
+ hashmap_put(m->manager->machine_units, m->unit, m);
return 0;
}
return r;
/* Create cgroup */
- r = machine_start_scope(m, properties, error);
+ r = machine_ensure_scope(m, properties, error);
if (r < 0)
return r;
machine_save(m);
machine_send_signal(m, true);
+ (void) manager_enqueue_nscd_cache_flush(m->manager);
return 0;
}
-static int machine_stop_scope(Machine *m) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- char *job = NULL;
- int r;
-
- assert(m);
- assert(m->class != MACHINE_HOST);
-
- if (!m->unit)
- return 0;
-
- r = manager_stop_unit(m->manager, m->unit, &error, &job);
- if (r < 0)
- return log_error_errno(r, "Failed to stop machine scope: %s", bus_error_message(&error, r));
-
- return free_and_replace(m->scope_job, job);
-}
-
int machine_stop(Machine *m) {
int r;
+
assert(m);
if (!IN_SET(m->class, MACHINE_CONTAINER, MACHINE_VM))
return -EOPNOTSUPP;
- r = machine_stop_scope(m);
+ if (m->unit) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ char *job = NULL;
+
+ r = manager_stop_unit(m->manager, m->unit, &error, &job);
+ if (r < 0)
+ return log_error_errno(r, "Failed to stop machine scope: %s", bus_error_message(&error, r));
+
+ free_and_replace(m->scope_job, job);
+ }
m->stopping = true;
machine_save(m);
+ (void) manager_enqueue_nscd_cache_flush(m->manager);
- return r;
+ return 0;
}
int machine_finalize(Machine *m) {
assert(m);
- if (m->started)
+ if (m->started) {
log_struct(LOG_INFO,
"MESSAGE_ID=" SD_MESSAGE_MACHINE_STOP_STR,
"NAME=%s", m->name,
"LEADER="PID_FMT, m->leader,
LOG_MESSAGE("Machine %s terminated.", m->name));
+ m->stopping = true; /* The machine is supposed to be going away. Don't try to kill it. */
+ }
+
machine_unlink(m);
machine_add_to_gc_queue(m);
return manager_kill_unit(m->manager, m->unit, signo, NULL);
}
-int machine_openpt(Machine *m, int flags) {
+int machine_openpt(Machine *m, int flags, char **ret_slave) {
assert(m);
switch (m->class) {
- case MACHINE_HOST: {
- int fd;
-
- fd = posix_openpt(flags);
- if (fd < 0)
- return -errno;
-
- if (unlockpt(fd) < 0)
- return -errno;
+ case MACHINE_HOST:
- return fd;
- }
+ return openpt_allocate(flags, ret_slave);
case MACHINE_CONTAINER:
if (m->leader <= 0)
return -EINVAL;
- return openpt_in_namespace(m->leader, flags);
+ return openpt_allocate_in_namespace(m->leader, flags, ret_slave);
default:
return -EOPNOTSUPP;
if (!m->unit)
return;
+ if (m->referenced) {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ int r;
+
+ r = manager_unref_unit(m->manager, m->unit, &error);
+ if (r < 0)
+ log_warning_errno(r, "Failed to drop reference to machine scope, ignoring: %s",
+ bus_error_message(&error, r));
+
+ m->referenced = false;
+ }
+
(void) hashmap_remove(m->manager->machine_units, m->unit);
m->unit = mfree(m->unit);
}
uid_t uid_base, uid_shift, uid_range;
gid_t gid_base, gid_shift, gid_range;
_cleanup_fclose_ FILE *f = NULL;
- int k;
+ int k, r;
assert(m);
assert(ret);
k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT "\n", &uid_base, &uid_shift, &uid_range);
if (k != 3) {
if (ferror(f))
- return -errno;
+ return errno_or_else(EIO);
return -EBADMSG;
}
return -ENXIO;
/* If there's more than one line, then we don't support this mapping. */
- if (fgetc(f) != EOF)
+ r = safe_fgetc(f, NULL);
+ if (r < 0)
+ return r;
+ if (r != 0) /* Insist on EOF */
return -ENXIO;
fclose(f);
k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT "\n", &gid_base, &gid_shift, &gid_range);
if (k != 3) {
if (ferror(f))
- return -errno;
+ return errno_or_else(EIO);
return -EBADMSG;
}
/* If there's more than one line, then we don't support this file. */
- if (fgetc(f) != EOF)
+ r = safe_fgetc(f, NULL);
+ if (r < 0)
+ return r;
+ if (r != 0) /* Insist on EOF */
return -ENXIO;
/* If the UID and GID mapping doesn't match, we don't support this mapping. */
projects / thirdparty / systemd.git / blobdiff