along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
+#include <errno.h>
#include <string.h>
#include <unistd.h>
-#include <errno.h>
#include "sd-messages.h"
-#include "util.h"
-#include "mkdir.h"
-#include "hashmap.h"
-#include "strv.h"
+#include "bus-error.h"
+#include "bus-util.h"
+#include "escape.h"
+#include "fd-util.h"
#include "fileio.h"
+#include "formats-util.h"
+#include "hashmap.h"
+#include "machine-dbus.h"
+#include "machine.h"
+#include "mkdir.h"
+#include "parse-util.h"
#include "special.h"
+#include "terminal-util.h"
#include "unit-name.h"
-#include "machine.h"
-#include "bus-util.h"
-#include "bus-error.h"
+#include "util.h"
-Machine* machine_new(Manager *manager, const char *name) {
+Machine* machine_new(Manager *manager, MachineClass class, const char *name) {
Machine *m;
assert(manager);
+ assert(class < _MACHINE_CLASS_MAX);
assert(name);
+ /* Passing class == _MACHINE_CLASS_INVALID here is fine. It
+ * means as much as "we don't know yet", and that we'll figure
+ * it out later when loading the state file. */
+
m = new0(Machine, 1);
if (!m)
return NULL;
if (!m->name)
goto fail;
- m->state_file = strappend("/run/systemd/machines/", m->name);
- if (!m->state_file)
- goto fail;
+ if (class != MACHINE_HOST) {
+ m->state_file = strappend("/run/systemd/machines/", m->name);
+ if (!m->state_file)
+ goto fail;
+ }
+
+ m->class = class;
if (hashmap_put(manager->machines, m->name, m) < 0)
goto fail;
- m->class = _MACHINE_CLASS_INVALID;
m->manager = manager;
return m;
void machine_free(Machine *m) {
assert(m);
+ while (m->operations)
+ machine_operation_unref(m->operations);
+
if (m->in_gc_queue)
LIST_REMOVE(gc_queue, m->manager->machine_gc_queue, m);
- if (m->unit) {
- hashmap_remove(m->manager->machine_units, m->unit);
- free(m->unit);
- }
+ machine_release_unit(m);
free(m->scope_job);
- hashmap_remove(m->manager->machines, m->name);
+ (void) hashmap_remove(m->manager->machines, m->name);
+
+ if (m->manager->host_machine == m)
+ m->manager->host_machine = NULL;
if (m->leader > 0)
- hashmap_remove_value(m->manager->machine_leaders, UINT_TO_PTR(m->leader), m);
+ (void) hashmap_remove_value(m->manager->machine_leaders, UINT_TO_PTR(m->leader), m);
sd_bus_message_unref(m->create_message);
int r;
assert(m);
- assert(m->state_file);
+
+ if (!m->state_file)
+ return 0;
if (!m->started)
return 0;
r = mkdir_safe_label("/run/systemd/machines", 0755, 0, 0);
if (r < 0)
- goto finish;
+ goto fail;
r = fopen_temporary(m->state_file, &f, &temp_path);
if (r < 0)
- goto finish;
+ goto fail;
- fchmod(fileno(f), 0644);
+ (void) fchmod(fileno(f), 0644);
fprintf(f,
"# This is private data. Do not parse.\n"
escaped = cescape(m->unit);
if (!escaped) {
r = -ENOMEM;
- goto finish;
+ goto fail;
}
fprintf(f, "SCOPE=%s\n", escaped); /* We continue to call this "SCOPE=" because it is internal only, and we want to stay compatible with old files */
escaped = cescape(m->service);
if (!escaped) {
r = -ENOMEM;
- goto finish;
+ goto fail;
}
fprintf(f, "SERVICE=%s\n", escaped);
}
escaped = cescape(m->root_directory);
if (!escaped) {
r = -ENOMEM;
- goto finish;
+ goto fail;
}
fprintf(f, "ROOT=%s\n", escaped);
}
r = fflush_and_check(f);
if (r < 0)
- goto finish;
+ goto fail;
if (rename(temp_path, m->state_file) < 0) {
r = -errno;
- goto finish;
+ goto fail;
}
if (m->unit) {
/* Create a symlink from the unit name to the machine
* name, so that we can quickly find the machine for
- * each given unit */
- sl = strappenda("/run/systemd/machines/unit:", m->unit);
- symlink(m->name, sl);
+ * each given unit. Ignore error. */
+ sl = strjoina("/run/systemd/machines/unit:", m->unit);
+ (void) symlink(m->name, sl);
}
-finish:
- if (r < 0) {
- if (temp_path)
- unlink(temp_path);
+ return 0;
- log_error("Failed to save machine data %s: %s", m->state_file, strerror(-r));
- }
+fail:
+ (void) unlink(m->state_file);
- return r;
+ if (temp_path)
+ (void) unlink(temp_path);
+
+ return log_error_errno(r, "Failed to save machine data %s: %m", m->state_file);
}
static void machine_unlink(Machine *m) {
char *sl;
- sl = strappenda("/run/systemd/machines/unit:", m->unit);
- unlink(sl);
+ sl = strjoina("/run/systemd/machines/unit:", m->unit);
+ (void) unlink(sl);
}
if (m->state_file)
- unlink(m->state_file);
+ (void) unlink(m->state_file);
}
int machine_load(Machine *m) {
assert(m);
+ if (!m->state_file)
+ return 0;
+
r = parse_env_file(m->state_file, NEWLINE,
"SCOPE", &m->unit,
"SCOPE_JOB", &m->scope_job,
if (r == -ENOENT)
return 0;
- log_error("Failed to read %s: %s", m->state_file, strerror(-r));
- return r;
+ return log_error_errno(r, "Failed to read %s: %m", m->state_file);
}
if (id)
if (netif) {
size_t l, allocated = 0, nr = 0;
- char *w, *state;
+ const char *word, *state;
int *ni = NULL;
- FOREACH_WORD(w, l, netif, state) {
+ FOREACH_WORD(word, l, netif, state) {
char buf[l+1];
int ifi;
- *(char*) (mempcpy(buf, w, l)) = 0;
+ *(char*) (mempcpy(buf, word, l)) = 0;
if (safe_atoi(buf, &ifi) < 0)
continue;
int r = 0;
assert(m);
+ assert(m->class != MACHINE_HOST);
if (!m->unit) {
_cleanup_free_ char *escaped = NULL;
if (!scope)
return log_oom();
- description = strappenda(m->class == MACHINE_VM ? "Virtual Machine " : "Container ", m->name);
+ description = strjoina(m->class == MACHINE_VM ? "Virtual Machine " : "Container ", m->name);
r = manager_start_scope(m->manager, scope, m->leader, SPECIAL_MACHINE_SLICE, description, properties, error, &job);
if (r < 0) {
assert(m);
+ if (!IN_SET(m->class, MACHINE_CONTAINER, MACHINE_VM))
+ return -EOPNOTSUPP;
+
if (m->started)
return 0;
return r;
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_MACHINE_START),
+ LOG_MESSAGE_ID(SD_MESSAGE_MACHINE_START),
"NAME=%s", m->name,
"LEADER="PID_FMT, m->leader,
- "MESSAGE=New machine %s.", m->name,
+ LOG_MESSAGE("New machine %s.", m->name),
NULL);
if (!dual_timestamp_is_set(&m->timestamp))
int r;
assert(m);
+ assert(m->class != MACHINE_HOST);
if (!m->unit)
return 0;
- if (!m->registered) {
- r = manager_stop_unit(m->manager, m->unit, &error, &job);
- if (r < 0) {
- log_error("Failed to stop machine scope: %s", bus_error_message(&error, r));
- return r;
- }
+ r = manager_stop_unit(m->manager, m->unit, &error, &job);
+ if (r < 0) {
+ log_error("Failed to stop machine scope: %s", bus_error_message(&error, r));
+ return r;
}
free(m->scope_job);
}
int machine_stop(Machine *m) {
- int r = 0, k;
+ int r;
+ assert(m);
+
+ if (!IN_SET(m->class, MACHINE_CONTAINER, MACHINE_VM))
+ return -EOPNOTSUPP;
+
+ r = machine_stop_scope(m);
+
+ m->stopping = true;
+
+ machine_save(m);
+
+ return r;
+}
+
+int machine_finalize(Machine *m) {
assert(m);
if (m->started)
log_struct(LOG_INFO,
- MESSAGE_ID(SD_MESSAGE_MACHINE_STOP),
+ LOG_MESSAGE_ID(SD_MESSAGE_MACHINE_STOP),
"NAME=%s", m->name,
"LEADER="PID_FMT, m->leader,
- "MESSAGE=Machine %s terminated.", m->name,
+ LOG_MESSAGE("Machine %s terminated.", m->name),
NULL);
- /* Kill cgroup */
- k = machine_stop_scope(m);
- if (k < 0)
- r = k;
-
machine_unlink(m);
machine_add_to_gc_queue(m);
- if (m->started)
+ if (m->started) {
machine_send_signal(m, false);
+ m->started = false;
+ }
- m->started = false;
-
- return r;
+ return 0;
}
bool machine_check_gc(Machine *m, bool drop_not_started) {
assert(m);
+ if (m->class == MACHINE_HOST)
+ return true;
+
if (drop_not_started && !m->started)
return false;
MachineState machine_get_state(Machine *s) {
assert(s);
+ if (s->class == MACHINE_HOST)
+ return MACHINE_RUNNING;
+
+ if (s->stopping)
+ return MACHINE_CLOSING;
+
if (s->scope_job)
- return s->started ? MACHINE_OPENING : MACHINE_CLOSING;
+ return MACHINE_OPENING;
return MACHINE_RUNNING;
}
int machine_kill(Machine *m, KillWho who, int signo) {
assert(m);
+ if (!IN_SET(m->class, MACHINE_VM, MACHINE_CONTAINER))
+ return -EOPNOTSUPP;
+
if (!m->unit)
return -ESRCH;
if (kill(m->leader, signo) < 0)
return -errno;
+
+ return 0;
}
/* Otherwise make PID 1 do it for us, for the entire cgroup */
return manager_kill_unit(m->manager, m->unit, signo, NULL);
}
+int machine_openpt(Machine *m, int flags) {
+ 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;
+
+ return fd;
+ }
+
+ case MACHINE_CONTAINER:
+ if (m->leader <= 0)
+ return -EINVAL;
+
+ return openpt_in_namespace(m->leader, flags);
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+int machine_open_terminal(Machine *m, const char *path, int mode) {
+ assert(m);
+
+ switch (m->class) {
+
+ case MACHINE_HOST:
+ return open_terminal(path, mode);
+
+ case MACHINE_CONTAINER:
+ if (m->leader <= 0)
+ return -EINVAL;
+
+ return open_terminal_in_namespace(m->leader, path, mode);
+
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+MachineOperation *machine_operation_unref(MachineOperation *o) {
+ if (!o)
+ return NULL;
+
+ sd_event_source_unref(o->event_source);
+
+ safe_close(o->errno_fd);
+
+ if (o->pid > 1)
+ (void) kill(o->pid, SIGKILL);
+
+ sd_bus_message_unref(o->message);
+
+ if (o->machine) {
+ LIST_REMOVE(operations, o->machine->operations, o);
+ o->machine->n_operations--;
+ }
+
+ free(o);
+ return NULL;
+}
+
+void machine_release_unit(Machine *m) {
+ assert(m);
+
+ if (!m->unit)
+ return;
+
+ (void) hashmap_remove(m->manager->machine_units, m->unit);
+ m->unit = mfree(m->unit);
+}
+
static const char* const machine_class_table[_MACHINE_CLASS_MAX] = {
[MACHINE_CONTAINER] = "container",
- [MACHINE_VM] = "vm"
+ [MACHINE_VM] = "vm",
+ [MACHINE_HOST] = "host",
};
DEFINE_STRING_TABLE_LOOKUP(machine_class, MachineClass);
projects / thirdparty / systemd.git / blobdiff