#endif
#include "sd-event.h"
-#include "unit.h"
-#include "socket.h"
#include "log.h"
#include "load-dropin.h"
#include "load-fragment.h"
#include "path-util.h"
#include "unit-name.h"
#include "unit-printf.h"
-#include "dbus-socket.h"
#include "missing.h"
#include "special.h"
#include "label.h"
#include "smack-util.h"
#include "bus-util.h"
#include "bus-error.h"
+#include "dbus-socket.h"
+#include "unit.h"
+#include "socket.h"
static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = UNIT_INACTIVE,
return false;
}
-static int socket_verify(Socket *s) {
- assert(s);
-
- if (UNIT(s)->load_state != UNIT_LOADED)
- return 0;
-
- if (!s->ports) {
- log_error_unit(UNIT(s)->id,
- "%s lacks Listen setting. Refusing.", UNIT(s)->id);
- return -EINVAL;
- }
-
- if (s->accept && have_non_accept_socket(s)) {
- log_error_unit(UNIT(s)->id,
- "%s configured for accepting sockets, but sockets are non-accepting. Refusing.",
- UNIT(s)->id);
- return -EINVAL;
- }
-
- if (s->accept && s->max_connections <= 0) {
- log_error_unit(UNIT(s)->id,
- "%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
- return -EINVAL;
- }
-
- if (s->accept && UNIT_DEREF(s->service)) {
- log_error_unit(UNIT(s)->id,
- "Explicit service configuration for accepting sockets not supported on %s. Refusing.",
- UNIT(s)->id);
- return -EINVAL;
- }
-
- if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
- log_error_unit(UNIT(s)->id,
- "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.",
- UNIT(s)->id);
- return -EINVAL;
- }
-
- return 0;
-}
-
static int socket_add_mount_links(Socket *s) {
SocketPort *p;
int r;
static int socket_add_device_link(Socket *s) {
char *t;
- int r;
assert(s);
if (!s->bind_to_device || streq(s->bind_to_device, "lo"))
return 0;
- if (asprintf(&t, "/sys/subsystem/net/devices/%s", s->bind_to_device) < 0)
- return -ENOMEM;
-
- r = unit_add_node_link(UNIT(s), t, false);
- free(t);
-
- return r;
+ t = strappenda("/sys/subsystem/net/devices/", s->bind_to_device);
+ return unit_add_node_link(UNIT(s), t, false);
}
static int socket_add_default_dependencies(Socket *s) {
return false;
}
-static int socket_load(Unit *u) {
- Socket *s = SOCKET(u);
+static int socket_add_extras(Socket *s) {
+ Unit *u = UNIT(s);
int r;
- assert(u);
- assert(u->load_state == UNIT_STUB);
-
- if ((r = unit_load_fragment_and_dropin(u)) < 0)
- return r;
-
- /* This is a new unit? Then let's add in some extras */
- if (u->load_state == UNIT_LOADED) {
-
- if (have_non_accept_socket(s)) {
-
- if (!UNIT_DEREF(s->service)) {
- Unit *x;
+ assert(s);
- r = unit_load_related_unit(u, ".service", &x);
- if (r < 0)
- return r;
+ if (have_non_accept_socket(s)) {
- unit_ref_set(&s->service, x);
- }
+ if (!UNIT_DEREF(s->service)) {
+ Unit *x;
- r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(s->service), true);
+ r = unit_load_related_unit(u, ".service", &x);
if (r < 0)
return r;
+
+ unit_ref_set(&s->service, x);
}
- if ((r = socket_add_mount_links(s)) < 0)
+ r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, UNIT_DEREF(s->service), true);
+ if (r < 0)
return r;
+ }
- if ((r = socket_add_device_link(s)) < 0)
- return r;
+ r = socket_add_mount_links(s);
+ if (r < 0)
+ return r;
- if (socket_has_exec(s))
- if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
- return r;
+ r = socket_add_device_link(s);
+ if (r < 0)
+ return r;
+
+ r = unit_exec_context_defaults(u, &s->exec_context);
+ if (r < 0)
+ return r;
+
+ if (socket_has_exec(s)) {
+ r = unit_add_exec_dependencies(u, &s->exec_context);
+ if (r < 0)
+ return r;
r = unit_add_default_slice(u);
if (r < 0)
return r;
+ }
- if (UNIT(s)->default_dependencies)
- if ((r = socket_add_default_dependencies(s)) < 0)
- return r;
+ if (u->default_dependencies) {
+ r = socket_add_default_dependencies(s);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+static int socket_verify(Socket *s) {
+ assert(s);
+
+ if (UNIT(s)->load_state != UNIT_LOADED)
+ return 0;
+
+ if (!s->ports) {
+ log_error_unit(UNIT(s)->id, "%s lacks Listen setting. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->accept && have_non_accept_socket(s)) {
+ log_error_unit(UNIT(s)->id, "%s configured for accepting sockets, but sockets are non-accepting. Refusing.",
+ UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->accept && s->max_connections <= 0) {
+ log_error_unit(UNIT(s)->id, "%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
- r = unit_exec_context_defaults(u, &s->exec_context);
+ if (s->accept && UNIT_DEREF(s->service)) {
+ log_error_unit(UNIT(s)->id, "Explicit service configuration for accepting sockets not supported on %s. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ if (s->exec_context.pam_name && s->kill_context.kill_mode != KILL_CONTROL_GROUP) {
+ log_error_unit(UNIT(s)->id, "%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int socket_load(Unit *u) {
+ Socket *s = SOCKET(u);
+ int r;
+
+ assert(u);
+ assert(u->load_state == UNIT_STUB);
+
+ r = unit_load_fragment_and_dropin(u);
+ if (r < 0)
+ return r;
+
+ if (u->load_state == UNIT_LOADED) {
+ /* This is a new unit? Then let's add in some extras */
+ r = socket_add_extras(s);
if (r < 0)
return r;
}
}
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
-
SocketExecCommand c;
Socket *s = SOCKET(u);
SocketPort *p;
const char *prefix2;
- char *p2;
assert(s);
assert(f);
- p2 = strappend(prefix, "\t");
- prefix2 = p2 ? p2 : prefix;
+ prefix2 = strappenda(prefix, "\t");
fprintf(f,
"%sSocket State: %s\n"
exec_command_dump_list(s->exec_command[c], f, prefix2);
}
-
- free(p2);
}
static int instance_from_socket(int fd, unsigned nr, char **instance) {
socket_close_fds(s);
if (state != old_state)
- log_debug_unit(UNIT(s)->id,
- "%s changed %s -> %s", UNIT(s)->id,
- socket_state_to_string(old_state),
- socket_state_to_string(state));
+ log_debug_unit(UNIT(s)->id, "%s changed %s -> %s",
+ UNIT(s)->id, socket_state_to_string(old_state), socket_state_to_string(state));
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
}
assert(s);
assert(s->state == SOCKET_DEAD);
- if (s->deserialized_state != s->state) {
-
- if (s->deserialized_state == SOCKET_START_PRE ||
- s->deserialized_state == SOCKET_START_POST ||
- s->deserialized_state == SOCKET_STOP_PRE ||
- s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
- s->deserialized_state == SOCKET_STOP_PRE_SIGKILL ||
- s->deserialized_state == SOCKET_STOP_POST ||
- s->deserialized_state == SOCKET_FINAL_SIGTERM ||
- s->deserialized_state == SOCKET_FINAL_SIGKILL) {
+ if (s->deserialized_state == s->state)
+ return 0;
- if (s->control_pid <= 0)
- return -EBADMSG;
+ if (s->deserialized_state == SOCKET_START_PRE ||
+ s->deserialized_state == SOCKET_START_POST ||
+ s->deserialized_state == SOCKET_STOP_PRE ||
+ s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
+ s->deserialized_state == SOCKET_STOP_PRE_SIGKILL ||
+ s->deserialized_state == SOCKET_STOP_POST ||
+ s->deserialized_state == SOCKET_FINAL_SIGTERM ||
+ s->deserialized_state == SOCKET_FINAL_SIGKILL) {
- r = unit_watch_pid(UNIT(s), s->control_pid);
- if (r < 0)
- return r;
+ if (s->control_pid <= 0)
+ return -EBADMSG;
- r = socket_arm_timer(s);
- if (r < 0)
- return r;
- }
+ r = unit_watch_pid(UNIT(s), s->control_pid);
+ if (r < 0)
+ return r;
- if (s->deserialized_state == SOCKET_START_POST ||
- s->deserialized_state == SOCKET_LISTENING ||
- s->deserialized_state == SOCKET_RUNNING ||
- s->deserialized_state == SOCKET_STOP_PRE ||
- s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
- s->deserialized_state == SOCKET_STOP_PRE_SIGKILL) {
- r = socket_open_fds(s);
- if (r < 0)
- return r;
- }
+ r = socket_arm_timer(s);
+ if (r < 0)
+ return r;
+ }
- if (s->deserialized_state == SOCKET_LISTENING) {
- r = socket_watch_fds(s);
- if (r < 0)
- return r;
- }
+ if (s->deserialized_state == SOCKET_START_POST ||
+ s->deserialized_state == SOCKET_LISTENING ||
+ s->deserialized_state == SOCKET_RUNNING ||
+ s->deserialized_state == SOCKET_STOP_PRE ||
+ s->deserialized_state == SOCKET_STOP_PRE_SIGTERM ||
+ s->deserialized_state == SOCKET_STOP_PRE_SIGKILL) {
+ r = socket_open_fds(s);
+ if (r < 0)
+ return r;
+ }
- socket_set_state(s, s->deserialized_state);
+ if (s->deserialized_state == SOCKET_LISTENING) {
+ r = socket_watch_fds(s);
+ if (r < 0)
+ return r;
}
+ socket_set_state(s, s->deserialized_state);
return 0;
}
return;
fail:
- log_warning_unit(UNIT(s)->id,
- "%s failed to kill processes: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to kill processes: %s", UNIT(s)->id, strerror(-r));
if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
return;
fail:
- log_warning_unit(UNIT(s)->id,
- "%s failed to run 'stop-pre' task: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to run 'stop-pre' task: %s", UNIT(s)->id, strerror(-r));
socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
}
r = socket_watch_fds(s);
if (r < 0) {
- log_warning_unit(UNIT(s)->id,
- "%s failed to watch sockets: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
r = socket_open_fds(s);
if (r < 0) {
- log_warning_unit(UNIT(s)->id,
- "%s failed to listen on sockets: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to listen on sockets: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
r = socket_spawn(s, s->control_command, &s->control_pid);
if (r < 0) {
- log_warning_unit(UNIT(s)->id,
- "%s failed to run 'start-post' task: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
s->control_command_id = SOCKET_EXEC_START_PRE;
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) {
- if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
+ r = socket_spawn(s, s->control_command, &s->control_pid);
+ if (r < 0)
goto fail;
socket_set_state(s, SOCKET_START_PRE);
return;
fail:
- log_warning_unit(UNIT(s)->id,
- "%s failed to run 'start-pre' task: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
}
/* We don't take connections anymore if we are supposed to
* shut down anyway */
if (unit_stop_pending(UNIT(s))) {
- log_debug_unit(UNIT(s)->id,
- "Suppressing connection request on %s since unit stop is scheduled.",
- UNIT(s)->id);
+
+ log_debug_unit(UNIT(s)->id, "Suppressing connection request on %s since unit stop is scheduled.", UNIT(s)->id);
if (cfd >= 0)
close_nointr_nofail(cfd);
r = socket_watch_fds(s);
if (r < 0) {
- log_warning_unit(UNIT(s)->id,
- "%s failed to watch sockets: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
}
}
if (cfd < 0) {
Iterator i;
- Unit *u;
+ Unit *other;
bool pending = false;
/* If there's already a start pending don't bother to
* do anything */
- SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERS], i)
- if (unit_active_or_pending(u)) {
+ SET_FOREACH(other, UNIT(s)->dependencies[UNIT_TRIGGERS], i)
+ if (unit_active_or_pending(other)) {
pending = true;
break;
}
Service *service;
if (s->n_connections >= s->max_connections) {
- log_warning_unit(UNIT(s)->id,
- "%s: Too many incoming connections (%u)",
- UNIT(s)->id, s->n_connections);
+ log_warning_unit(UNIT(s)->id, "%s: Too many incoming connections (%u)", UNIT(s)->id, s->n_connections);
close_nointr_nofail(cfd);
return;
}
}
name = unit_name_build(prefix, instance, ".service");
-
if (!name) {
r = -ENOMEM;
goto fail;
return;
fail:
- log_warning_unit(UNIT(s)->id,
- "%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s",
- UNIT(s)->id,
- cfd >= 0 ? "template" : "non-template",
+ log_warning_unit(UNIT(s)->id, "%s failed to queue service startup job (Maybe the service file is missing or not a %s unit?): %s",
+ UNIT(s)->id, cfd >= 0 ? "template" : "non-template",
bus_error_message(&error, r));
+
socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
if (cfd >= 0)
s->control_command = s->control_command->command_next;
- if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
+ r = socket_spawn(s, s->control_command, &s->control_pid);
+ if (r < 0)
goto fail;
return;
fail:
- log_warning_unit(UNIT(s)->id,
- "%s failed to run next task: %s",
- UNIT(s)->id, strerror(-r));
+ log_warning_unit(UNIT(s)->id, "%s failed to run next task: %s", UNIT(s)->id, strerror(-r));
if (s->state == SOCKET_START_POST)
socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
service = SERVICE(UNIT_DEREF(s->service));
if (UNIT(service)->load_state != UNIT_LOADED) {
- log_error_unit(u->id,
- "Socket service %s not loaded, refusing.",
- UNIT(service)->id);
+ log_error_unit(u->id, "Socket service %s not loaded, refusing.", UNIT(service)->id);
return -ENOENT;
}
if (service->state != SERVICE_DEAD &&
service->state != SERVICE_FAILED &&
service->state != SERVICE_AUTO_RESTART) {
- log_error_unit(u->id,
- "Socket service %s already active, refusing.",
- UNIT(service)->id);
+ log_error_unit(u->id, "Socket service %s already active, refusing.", UNIT(service)->id);
return -EBUSY;
}
s->result = SOCKET_SUCCESS;
socket_enter_start_pre(s);
+
return 0;
}
assert(u);
assert(key);
assert(value);
- assert(fds);
if (streq(key, "state")) {
SocketState state;
state = socket_state_from_string(value);
if (state < 0)
- log_debug_unit(u->id,
- "Failed to parse state value %s", value);
+ log_debug_unit(u->id, "Failed to parse state value %s", value);
else
s->deserialized_state = state;
} else if (streq(key, "result")) {
f = socket_result_from_string(value);
if (f < 0)
- log_debug_unit(u->id,
- "Failed to parse result value %s", value);
+ log_debug_unit(u->id, "Failed to parse result value %s", value);
else if (f != SOCKET_SUCCESS)
s->result = f;
unsigned k;
if (safe_atou(value, &k) < 0)
- log_debug_unit(u->id,
- "Failed to parse n-accepted value %s", value);
+ log_debug_unit(u->id, "Failed to parse n-accepted value %s", value);
else
s->n_accepted += k;
} else if (streq(key, "control-pid")) {
pid_t pid;
if (parse_pid(value, &pid) < 0)
- log_debug_unit(u->id,
- "Failed to parse control-pid value %s", value);
+ log_debug_unit(u->id, "Failed to parse control-pid value %s", value);
else
s->control_pid = pid;
} else if (streq(key, "control-command")) {
id = socket_exec_command_from_string(value);
if (id < 0)
- log_debug_unit(u->id,
- "Failed to parse exec-command value %s", value);
+ log_debug_unit(u->id, "Failed to parse exec-command value %s", value);
else {
s->control_command_id = id;
s->control_command = s->exec_command[id];
SocketPort *p;
if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id,
- "Failed to parse fifo value %s", value);
+ log_debug_unit(u->id, "Failed to parse fifo value %s", value);
else {
LIST_FOREACH(port, p, s->ports)
SocketPort *p;
if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id,
- "Failed to parse special value %s", value);
+ log_debug_unit(u->id, "Failed to parse special value %s", value);
else {
LIST_FOREACH(port, p, s->ports)
SocketPort *p;
if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id,
- "Failed to parse mqueue value %s", value);
+ log_debug_unit(u->id, "Failed to parse mqueue value %s", value);
else {
LIST_FOREACH(port, p, s->ports)
SocketPort *p;
if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id,
- "Failed to parse socket value %s", value);
+ log_debug_unit(u->id, "Failed to parse socket value %s", value);
else {
LIST_FOREACH(port, p, s->ports)
SocketPort *p;
if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
- log_debug_unit(u->id,
- "Failed to parse socket value %s", value);
+ log_debug_unit(u->id, "Failed to parse socket value %s", value);
else {
LIST_FOREACH(port, p, s->ports)
}
}
} else
- log_debug_unit(UNIT(s)->id,
- "Unknown serialization key '%s'", key);
+ log_debug_unit(UNIT(s)->id, "Unknown serialization key '%s'", key);
return 0;
}
if (revents != EPOLLIN) {
if (revents & EPOLLHUP)
- log_error_unit(UNIT(p->socket)->id,
- "%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.",
+ log_error_unit(UNIT(p->socket)->id, "%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.",
UNIT(p->socket)->id);
else
- log_error_unit(UNIT(p->socket)->id,
- "%s: Got unexpected poll event (0x%x) on socket.",
+ log_error_unit(UNIT(p->socket)->id, "%s: Got unexpected poll event (0x%x) on socket.",
UNIT(p->socket)->id, revents);
goto fail;
return 0;
}
+static void socket_reset_failed(Unit *u) {
+ Socket *s = SOCKET(u);
+
+ assert(s);
+
+ if (s->state == SOCKET_FAILED)
+ socket_set_state(s, SOCKET_DEAD);
+
+ s->result = SOCKET_SUCCESS;
+}
+
static void socket_notify_service_dead(Socket *s, bool failed_permanent) {
assert(s);
* services. */
if (s->state == SOCKET_RUNNING) {
- log_debug_unit(UNIT(s)->id,
- "%s got notified about service death (failed permanently: %s)",
- UNIT(s)->id, yes_no(failed_permanent));
+ log_debug_unit(UNIT(s)->id, "%s got notified about service death (failed permanently: %s)", UNIT(s)->id, yes_no(failed_permanent));
if (failed_permanent)
socket_enter_stop_pre(s, SOCKET_FAILURE_SERVICE_FAILED_PERMANENT);
else
assert(s->n_connections > 0);
s->n_connections--;
- log_debug_unit(UNIT(s)->id,
- "%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections);
-}
-
-static void socket_reset_failed(Unit *u) {
- Socket *s = SOCKET(u);
-
- assert(s);
-
- if (s->state == SOCKET_FAILED)
- socket_set_state(s, SOCKET_DEAD);
-
- s->result = SOCKET_SUCCESS;
+ log_debug_unit(UNIT(s)->id, "%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections);
}
static void socket_trigger_notify(Unit *u, Unit *other) {
Socket *s = SOCKET(u);
- Service *se = SERVICE(other);
+ Service *se;
assert(u);
assert(other);
other->type != UNIT_SERVICE)
return;
+ se = SERVICE(other);
+
if (se->state == SERVICE_FAILED)
socket_notify_service_dead(s, se->result == SERVICE_FAILURE_START_LIMIT);
~ianmdlvl / elogind.git / blobdiff