-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include "unit.h"
#include "socket.h"
+#include "netinet/tcp.h"
#include "log.h"
#include "load-dropin.h"
#include "load-fragment.h"
#include "missing.h"
#include "special.h"
#include "bus-errors.h"
+#include "label.h"
+#include "exit-status.h"
static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = UNIT_INACTIVE,
[SOCKET_STOP_POST] = UNIT_DEACTIVATING,
[SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING,
[SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING,
- [SOCKET_MAINTENANCE] = UNIT_MAINTENANCE
+ [SOCKET_FAILED] = UNIT_FAILED
};
static void socket_init(Unit *u) {
s->mark = -1;
exec_context_init(&s->exec_context);
+ s->exec_context.std_output = u->meta.manager->default_std_output;
+ s->exec_context.std_error = u->meta.manager->default_std_error;
s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
}
s->service = NULL;
+ free(s->tcp_congestion);
+ s->tcp_congestion = NULL;
+
free(s->bind_to_device);
s->bind_to_device = NULL;
LIST_FOREACH(units_per_type, i, u->meta.manager->units_per_type[UNIT_SERVICE]) {
Service *service = (Service *) i;
- if (service->socket == s)
- service->socket = NULL;
+ if (service->accept_socket == s)
+ service->accept_socket = NULL;
+
+ set_remove(service->configured_sockets, s);
}
}
if (r < 0)
return r;
+#ifdef HAVE_SYSV_COMPAT
+ if (SERVICE(u)->sysv_path) {
+ log_error("Using SysV services for socket activation is not supported. Refusing.");
+ return -ENOENT;
+ }
+#endif
+
+ u->meta.no_gc = true;
s->service = SERVICE(u);
return 0;
}
return -EINVAL;
}
+ if (s->accept && s->service) {
+ log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", s->meta.id);
+ return -EINVAL;
+ }
+
if (s->exec_context.pam_name && s->exec_context.kill_mode != KILL_CONTROL_GROUP) {
log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", s->meta.id);
return -EINVAL;
int r;
assert(s);
- if (s->meta.manager->running_as == MANAGER_SYSTEM)
+ if (s->meta.manager->running_as == MANAGER_SYSTEM) {
+ if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
+ return r;
+
if ((r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
return r;
+ }
return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
}
if (u->meta.load_state == UNIT_LOADED) {
if (have_non_accept_socket(s)) {
- if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)) < 0)
- return r;
+
+ if (!s->service)
+ if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)) < 0)
+ return r;
if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service), true)) < 0)
return r;
if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
return r;
- if ((r = unit_add_default_cgroup(u)) < 0)
+ if ((r = unit_add_default_cgroups(u)) < 0)
return r;
if (s->meta.default_dependencies)
"%sSocketMode: %04o\n"
"%sDirectoryMode: %04o\n"
"%sKeepAlive: %s\n"
- "%sFreeBind: %s\n",
+ "%sFreeBind: %s\n"
+ "%sTCPCongestion: %s\n",
prefix, socket_state_to_string(s->state),
prefix, socket_address_bind_ipv6_only_to_string(s->bind_ipv6_only),
prefix, s->backlog,
prefix, s->socket_mode,
prefix, s->directory_mode,
prefix, yes_no(s->keep_alive),
- prefix, yes_no(s->free_bind));
+ prefix, yes_no(s->free_bind),
+ prefix, strna(s->tcp_congestion));
if (s->control_pid > 0)
fprintf(f,
if (p->type == SOCKET_SOCKET) {
const char *t;
int r;
- char *k;
+ char *k = NULL;
if ((r = socket_address_print(&p->address, &k)) < 0)
t = strerror(-r);
else
t = k;
- fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), k);
+ fprintf(f, "%s%s: %s\n", prefix, listen_lookup(p->address.type), t);
free(k);
} else
fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
int r, x;
r = setsockopt(fd, IPPROTO_IP, IP_TTL, &s->ip_ttl, sizeof(s->ip_ttl));
- x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl));
+
+ if (socket_ipv6_is_supported())
+ x = setsockopt(fd, IPPROTO_IPV6, IPV6_UNICAST_HOPS, &s->ip_ttl, sizeof(s->ip_ttl));
+ else {
+ x = -1;
+ errno = EAFNOSUPPORT;
+ }
if (r < 0 && x < 0)
log_warning("IP_TTL/IPV6_UNICAST_HOPS failed: %m");
}
+
+ if (s->tcp_congestion)
+ if (setsockopt(fd, SOL_TCP, TCP_CONGESTION, s->tcp_congestion, strlen(s->tcp_congestion)+1) < 0)
+ log_warning("TCP_CONGESTION failed: %m");
}
static void socket_apply_fifo_options(Socket *s, int fd) {
log_warning("F_SETPIPE_SZ: %m");
}
+
static int fifo_address_create(
const char *path,
mode_t directory_mode,
mode_t socket_mode,
- /* FIXME SELINUX: pass SELinux context object here */
int *_fd) {
- int fd = -1, r;
+ int fd = -1, r = 0;
struct stat st;
mode_t old_mask;
mkdir_parents(path, directory_mode);
- /* FIXME SELINUX: The mkfifo here should be done with
- * the right SELinux context set */
+ if ((r = label_fifofile_set(path)) < 0)
+ goto fail;
/* Enforce the right access mode for the fifo */
old_mask = umask(~ socket_mode);
goto fail;
}
+ label_file_clear();
+
if (fstat(fd, &st) < 0) {
r = -errno;
goto fail;
}
if (!S_ISFIFO(st.st_mode) ||
- st.st_mode != (socket_mode & ~old_mask) ||
+ (st.st_mode & 0777) != (socket_mode & ~old_mask) ||
st.st_uid != getuid() ||
st.st_gid != getgid()) {
return 0;
fail:
+ label_file_clear();
+
if (fd >= 0)
close_nointr_nofail(fd);
static int socket_open_fds(Socket *s) {
SocketPort *p;
int r;
+ char *label = NULL;
+ bool know_label = false;
assert(s);
- /* FIXME SELINUX: Somewhere here we must set the the SELinux
- context for the created sockets and FIFOs. To figure out
- the executable name for this, use
- socket_instantiate_service() and then access the executable
- path name via
- s->service->exec_command[SERVICE_EXEC_START]->path. Example:
-
- if ((r = socket_instantiate_service(s)) < 0)
- return r;
-
- log_debug("Socket unit %s will spawn service unit %s with executable path %s.",
- s->meta.id,
- s->service->meta.id,
- s->service->exec_command[SERVICE_EXEC_START]->path);
- */
-
LIST_FOREACH(port, p, s->ports) {
if (p->fd >= 0)
if (p->type == SOCKET_SOCKET) {
+ if (!know_label) {
+
+ if ((r = socket_instantiate_service(s)) < 0)
+ return r;
+
+ if (s->service && s->service->exec_command[SERVICE_EXEC_START])
+ if ((r = label_get_socket_label_from_exe(s->service->exec_command[SERVICE_EXEC_START]->path, &label)) < 0)
+ return r;
+
+ know_label = true;
+ }
+
if ((r = socket_address_listen(
&p->address,
s->backlog,
s->free_bind,
s->directory_mode,
s->socket_mode,
- /* FIXME SELINUX: Pass the SELinux context object here */
+ label,
&p->fd)) < 0)
goto rollback;
p->path,
s->directory_mode,
s->socket_mode,
- /* FIXME SELINUX: Pass the SELinux context object here */
&p->fd)) < 0)
goto rollback;
assert_not_reached("Unknown port type");
}
+ label_free(label);
return 0;
rollback:
socket_close_fds(s);
+ label_free(label);
return r;
}
socket_state_to_string(old_state),
socket_state_to_string(state));
- unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
+ unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state], true);
}
static int socket_coldplug(Unit *u) {
if (!success)
s->failure = true;
- socket_set_state(s, s->failure ? SOCKET_MAINTENANCE : SOCKET_DEAD);
+ socket_set_state(s, s->failure ? SOCKET_FAILED : SOCKET_DEAD);
}
static void socket_enter_signal(Socket *s, SocketState state, bool success);
static void socket_enter_signal(Socket *s, SocketState state, bool success) {
int r;
- bool sent = false;
+ Set *pid_set = NULL;
+ bool wait_for_exit = false;
assert(s);
if (s->exec_context.kill_mode != KILL_NONE) {
int sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_FINAL_SIGTERM) ? s->exec_context.kill_signal : SIGKILL;
- if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
+ if (s->control_pid > 0) {
+ if (kill(s->exec_context.kill_mode == KILL_PROCESS_GROUP ?
+ -s->control_pid :
+ s->control_pid, sig) < 0 && errno != ESRCH)
- if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig)) < 0) {
- if (r != -EAGAIN && r != -ESRCH)
- goto fail;
- } else
- sent = true;
+ log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
+ else
+ wait_for_exit = true;
}
- if (!sent && s->control_pid > 0)
- if (kill(s->exec_context.kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) {
- r = -errno;
+ if (s->exec_context.kill_mode == KILL_CONTROL_GROUP) {
+
+ if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func))) {
+ r = -ENOMEM;
goto fail;
}
+
+ /* Exclude the control pid from being killed via the cgroup */
+ if (s->control_pid > 0)
+ if ((r = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0)
+ goto fail;
+
+ if ((r = cgroup_bonding_kill_list(s->meta.cgroup_bondings, sig, pid_set)) < 0) {
+ if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ log_warning("Failed to kill control group: %s", strerror(-r));
+ } else if (r > 0)
+ wait_for_exit = true;
+
+ set_free(pid_set);
+ }
}
- if (sent && s->control_pid > 0) {
+ if (wait_for_exit) {
if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
goto fail;
socket_enter_stop_post(s, false);
else
socket_enter_dead(s, false);
+
+ if (pid_set)
+ set_free(pid_set);
}
static void socket_enter_stop_pre(Socket *s, bool success) {
/* We don't take connections anymore if we are supposed to
* shut down anyway */
- if (s->meta.job && s->meta.job->type == JOB_STOP) {
+ if (unit_pending_inactive(UNIT(s))) {
+ log_debug("Suppressing connection request on %s since unit stop is scheduled.", s->meta.id);
+
if (cfd >= 0)
close_nointr_nofail(cfd);
else {
}
if (cfd < 0) {
- if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0)
- goto fail;
+ bool pending = false;
+ Meta *i;
+
+ /* If there's already a start pending don't bother to
+ * do anything */
+ LIST_FOREACH(units_per_type, i, s->meta.manager->units_per_type[UNIT_SERVICE]) {
+ Service *service = (Service *) i;
+
+ if (!set_get(service->configured_sockets, s))
+ continue;
+
+ if (!unit_pending_active(UNIT(service)))
+ continue;
+
+ pending = true;
+ break;
+ }
+
+ if (!pending)
+ if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0)
+ goto fail;
socket_set_state(s, SOCKET_RUNNING);
} else {
s->service = NULL;
s->n_accepted ++;
+ service->meta.no_gc = false;
+
unit_choose_id(UNIT(service), name);
free(name);
if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL)) < 0)
goto fail;
+
+ /* Notify clients about changed counters */
+ unit_add_to_dbus_queue(UNIT(s));
}
return;
if (s->service->meta.load_state != UNIT_LOADED)
return -ENOENT;
- /* If the service is alredy actvie we cannot start the
+ /* If the service is alredy active we cannot start the
* socket */
if (s->service->state != SERVICE_DEAD &&
- s->service->state != SERVICE_MAINTENANCE &&
+ s->service->state != SERVICE_FAILED &&
s->service->state != SERVICE_AUTO_RESTART)
return -EBUSY;
+
+#ifdef HAVE_SYSV_COMPAT
+ if (s->service->sysv_path) {
+ log_error("Using SysV services for socket activation is not supported. Refusing.");
+ return -ENOENT;
+ }
+#endif
}
- assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTENANCE);
+ assert(s->state == SOCKET_DEAD || s->state == SOCKET_FAILED);
s->failure = false;
socket_enter_start_pre(s);
static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
Socket *s = SOCKET(u);
- int r;
assert(u);
assert(key);
} else if (streq(key, "n-accepted")) {
unsigned k;
- if ((r = safe_atou(value, &k)) < 0)
+ if (safe_atou(value, &k) < 0)
log_debug("Failed to parse n-accepted value %s", value);
else
s->n_accepted += k;
} else if (streq(key, "control-pid")) {
pid_t pid;
- if ((r = parse_pid(value, &pid)) < 0)
+ if (parse_pid(value, &pid) < 0)
log_debug("Failed to parse control-pid value %s", value);
else
s->control_pid = pid;
success = is_clean_exit(code, status);
if (s->control_command) {
- exec_status_exit(&s->control_command->exec_status, pid, code, status);
+ exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
if (s->control_command->ignore)
success = true;
}
- log_debug("%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
+ log_full(success ? LOG_DEBUG : LOG_NOTICE,
+ "%s control process exited, code=%s status=%i", u->meta.id, sigchld_code_to_string(code), status);
s->failure = s->failure || !success;
if (s->control_command && s->control_command->command_next && success) {
assert_not_reached("Uh, control process died at wrong time.");
}
}
+
+ /* Notify clients about changed exit status */
+ unit_add_to_dbus_queue(u);
}
static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
break;
case SOCKET_STOP_PRE_SIGTERM:
- log_warning("%s stopping timed out. Killing.", u->meta.id);
- socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false);
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s stopping timed out. Killing.", u->meta.id);
+ socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, false);
+ } else {
+ log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->meta.id);
+ socket_enter_stop_post(s, false);
+ }
break;
case SOCKET_STOP_PRE_SIGKILL:
break;
case SOCKET_FINAL_SIGTERM:
- log_warning("%s stopping timed out (2). Killing.", u->meta.id);
- socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false);
+ if (s->exec_context.send_sigkill) {
+ log_warning("%s stopping timed out (2). Killing.", u->meta.id);
+ socket_enter_signal(s, SOCKET_FINAL_SIGKILL, false);
+ } else {
+ log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->meta.id);
+ socket_enter_dead(s, false);
+ }
break;
case SOCKET_FINAL_SIGKILL:
- log_warning("%s still around after SIGKILL (2). Entering maintenance mode.", u->meta.id);
+ log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
socket_enter_dead(s, false);
break;
if (p->fd >= 0)
rn_fds++;
- if (!(rfds = new(int, rn_fds)) < 0)
+ if (!(rfds = new(int, rn_fds)))
return -ENOMEM;
k = 0;
log_debug("%s: One connection closed, %u left.", s->meta.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->failure = false;
+}
+
+static int socket_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
+ Socket *s = SOCKET(u);
+ int r = 0;
+ Set *pid_set = NULL;
+
+ assert(s);
+
+ if (who == KILL_MAIN) {
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "Socket units have no main processes");
+ return -EINVAL;
+ }
+
+ if (s->control_pid <= 0 && who == KILL_CONTROL) {
+ dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
+ return -ENOENT;
+ }
+
+ if (s->control_pid > 0)
+ if (kill(mode == KILL_PROCESS_GROUP ? -s->control_pid : s->control_pid, signo) < 0)
+ r = -errno;
+
+ if (mode == KILL_CONTROL_GROUP) {
+ int q;
+
+ if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
+ return -ENOMEM;
+
+ /* Exclude the control pid from being killed via the cgroup */
+ if (s->control_pid > 0)
+ if ((q = set_put(pid_set, LONG_TO_PTR(s->control_pid))) < 0) {
+ r = q;
+ goto finish;
+ }
+
+ if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, pid_set)) < 0)
+ if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ r = q;
+ }
+
+finish:
+ if (pid_set)
+ set_free(pid_set);
+
+ return r;
+}
+
static const char* const socket_state_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = "dead",
[SOCKET_START_PRE] = "start-pre",
[SOCKET_STOP_POST] = "stop-post",
[SOCKET_FINAL_SIGTERM] = "final-sigterm",
[SOCKET_FINAL_SIGKILL] = "final-sigkill",
- [SOCKET_MAINTENANCE] = "maintenance"
+ [SOCKET_FAILED] = "failed"
};
DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState);
.done = socket_done,
.load = socket_load,
+ .kill = socket_kill,
+
.coldplug = socket_coldplug,
.dump = socket_dump,
.sigchld_event = socket_sigchld_event,
.timer_event = socket_timer_event,
- .bus_message_handler = bus_socket_message_handler
+ .reset_failed = socket_reset_failed,
+
+ .bus_interface = "org.freedesktop.systemd1.Socket",
+ .bus_message_handler = bus_socket_message_handler,
+ .bus_invalidating_properties = bus_socket_invalidating_properties
};
~ianmdlvl / elogind.git / blobdiff