#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
-#include <sys/poll.h>
+#include <sys/epoll.h>
#include <signal.h>
#include "unit.h"
#include "socket.h"
#include "log.h"
-static const UnitActiveState state_table[_SOCKET_STATE_MAX] = {
+static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = UNIT_INACTIVE,
[SOCKET_START_PRE] = UNIT_ACTIVATING,
[SOCKET_START_POST] = UNIT_ACTIVATING,
[SOCKET_MAINTAINANCE] = UNIT_INACTIVE,
};
+static const char* const state_string_table[_SOCKET_STATE_MAX] = {
+ [SOCKET_DEAD] = "dead",
+ [SOCKET_START_PRE] = "start-pre",
+ [SOCKET_START_POST] = "start-post",
+ [SOCKET_LISTENING] = "listening",
+ [SOCKET_RUNNING] = "running",
+ [SOCKET_STOP_PRE] = "stop-pre",
+ [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
+ [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
+ [SOCKET_STOP_POST] = "stop-post",
+ [SOCKET_STOP_POST_SIGTERM] = "stop-post-sigterm",
+ [SOCKET_STOP_POST_SIGKILL] = "stop-post-sigkill",
+ [SOCKET_MAINTAINANCE] = "maintainance"
+};
+
static void socket_done(Unit *u) {
Socket *s = SOCKET(u);
SocketPort *p;
s->service = NULL;
- unit_unwatch_timer(u, &s->timer_id);
+ free(s->bind_to_device);
+
+ unit_unwatch_timer(u, &s->timer_watch);
}
static int socket_init(Unit *u) {
* reload */
s->state = 0;
- s->timer_id = -1;
+ s->timer_watch.type = WATCH_INVALID;
s->bind_ipv6_only = false;
s->backlog = SOMAXCONN;
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
exec_context_init(&s->exec_context);
- if ((r = unit_load_fragment_and_dropin(u)) < 0)
+ if ((r = unit_load_fragment_and_dropin(u)) <= 0) {
+ if (r == 0)
+ r = -ENOENT;
goto fail;
+ }
if (!(t = unit_name_change_suffix(unit_id(u), ".service"))) {
r = -ENOMEM;
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
- static const char* const state_table[_SOCKET_STATE_MAX] = {
- [SOCKET_DEAD] = "dead",
- [SOCKET_START_PRE] = "start-pre",
- [SOCKET_START_POST] = "start-post",
- [SOCKET_LISTENING] = "listening",
- [SOCKET_RUNNING] = "running",
- [SOCKET_STOP_PRE] = "stop-pre",
- [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm",
- [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill",
- [SOCKET_STOP_POST] = "stop-post",
- [SOCKET_STOP_POST_SIGTERM] = "stop-post-sigterm",
- [SOCKET_STOP_POST_SIGKILL] = "stop-post-sigkill",
- [SOCKET_MAINTAINANCE] = "maintainance"
- };
-
static const char* const command_table[_SOCKET_EXEC_MAX] = {
[SOCKET_EXEC_START_PRE] = "StartPre",
[SOCKET_EXEC_START_POST] = "StartPost",
SocketExecCommand c;
Socket *s = SOCKET(u);
SocketPort *p;
+ char *prefix2;
assert(s);
+ assert(f);
+
+ prefix2 = strappend(prefix, "\t");
+ if (!prefix2)
+ prefix2 = "";
fprintf(f,
"%sSocket State: %s\n"
"%sBindIPv6Only: %s\n"
"%sBacklog: %u\n",
- prefix, state_table[s->state],
+ prefix, state_string_table[s->state],
prefix, yes_no(s->bind_ipv6_only),
prefix, s->backlog);
+ if (s->bind_to_device)
+ fprintf(f,
+ "%sBindToDevice: %s\n",
+ prefix, s->bind_to_device);
+
LIST_FOREACH(port, p, s->ports) {
if (p->type == SOCKET_SOCKET) {
exec_context_dump(&s->exec_context, f, prefix);
for (c = 0; c < _SOCKET_EXEC_MAX; c++) {
- ExecCommand *i;
+ if (!s->exec_command[c])
+ continue;
- LIST_FOREACH(command, i, s->exec_command[c])
- fprintf(f, "%s%s: %s\n", prefix, command_table[c], i->path);
+ fprintf(f, "%sā %s:\n",
+ prefix, command_table[c]);
+
+ exec_command_dump_list(s->exec_command[c], f, prefix2);
}
+
+ free(prefix2);
}
static void socket_close_fds(Socket *s) {
if (p->fd < 0)
continue;
- unit_unwatch_fd(UNIT(s), p->fd);
+ unit_unwatch_fd(UNIT(s), &p->fd_watch);
assert_se(close_nointr(p->fd) >= 0);
p->fd = -1;
if (p->type == SOCKET_SOCKET) {
- if ((r = socket_address_listen(&p->address, s->backlog, s->bind_ipv6_only, &p->fd)) < 0)
+ if ((r = socket_address_listen(&p->address, s->backlog, s->bind_ipv6_only, s->bind_to_device, &p->fd)) < 0)
goto rollback;
} else {
if (p->fd < 0)
continue;
- unit_unwatch_fd(UNIT(s), p->fd);
+ unit_unwatch_fd(UNIT(s), &p->fd_watch);
}
}
if (p->fd < 0)
continue;
- if ((r = unit_watch_fd(UNIT(s), p->fd, POLLIN)) < 0)
+ if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0)
goto fail;
}
state != SOCKET_STOP_POST &&
state != SOCKET_STOP_POST_SIGTERM &&
state != SOCKET_STOP_POST_SIGKILL)
- unit_unwatch_timer(UNIT(s), &s->timer_id);
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
if (state != SOCKET_START_PRE &&
state != SOCKET_START_POST &&
state != SOCKET_STOP_POST &&
state != SOCKET_STOP_POST_SIGTERM &&
state != SOCKET_STOP_POST_SIGKILL)
- if (s->control_pid >= 0) {
+ if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
if (state != SOCKET_LISTENING)
socket_unwatch_fds(s);
- unit_notify(UNIT(s), state_table[old_state], state_table[s->state]);
+ log_debug("%s changed %s ā %s", unit_id(UNIT(s)), state_string_table[old_state], state_string_table[state]);
+
+ unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
static int socket_spawn(Socket *s, ExecCommand *c, bool timeout, pid_t *_pid) {
assert(_pid);
if (timeout) {
- if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_id)) < 0)
+ if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
goto fail;
} else
- unit_unwatch_timer(UNIT(s), &s->timer_id);
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
if ((r = exec_spawn(c, &s->exec_context, NULL, 0, &pid)) < 0)
goto fail;
fail:
if (timeout)
- unit_unwatch_timer(UNIT(s), &s->timer_id);
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
return r;
}
if (!success)
s->failure = true;
- if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) {
-
+ if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]))
if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
goto fail;
- socket_set_state(s, SOCKET_STOP_POST);
- } else
+ socket_set_state(s, SOCKET_STOP_POST);
+
+ if (!s->control_command)
socket_enter_dead(s, true);
return;
r = -errno;
goto fail;
}
+ }
- socket_set_state(s, state);
- } else
+ socket_set_state(s, state);
+
+ if (s->control_pid <= 0)
socket_enter_dead(s, true);
return;
if (!success)
s->failure = true;
- if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) {
-
+ if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]))
if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
goto fail;
- socket_set_state(s, SOCKET_STOP_PRE);
- } else
+ socket_set_state(s, SOCKET_STOP_PRE);
+
+ if (!s->control_command)
socket_enter_stop_post(s, true);
return;
socket_enter_stop_post(s, false);
}
+static void socket_enter_listening(Socket *s) {
+ int r;
+ assert(s);
+
+ if ((r = socket_watch_fds(s)) < 0) {
+ log_warning("%s failed to watch sockets: %s", unit_id(UNIT(s)), strerror(-r));
+ goto fail;
+ }
+
+ socket_set_state(s, SOCKET_LISTENING);
+ return;
+
+fail:
+ socket_enter_stop_pre(s, false);
+}
+
static void socket_enter_start_post(Socket *s) {
int r;
assert(s);
- if ((r = socket_open_fds(s)) < 0 ||
- (r = socket_watch_fds(s)) < 0) {
+ if ((r = socket_open_fds(s)) < 0) {
log_warning("%s failed to listen on sockets: %s", unit_id(UNIT(s)), strerror(-r));
goto fail;
}
- if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
-
+ if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST]))
if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0) {
log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
goto fail;
}
- socket_set_state(s, SOCKET_START_POST);
- } else
- socket_set_state(s, SOCKET_LISTENING);
+ socket_set_state(s, SOCKET_START_POST);
+
+ if (!s->control_command)
+ socket_enter_listening(s);
return;
int r;
assert(s);
- if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE])) {
-
+ if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]))
if ((r = socket_spawn(s, s->control_command, true, &s->control_pid)) < 0)
goto fail;
- socket_set_state(s, SOCKET_START_PRE);
- } else
+ socket_set_state(s, SOCKET_START_PRE);
+
+ if (!s->control_command)
socket_enter_start_post(s);
return;
static UnitActiveState socket_active_state(Unit *u) {
assert(u);
- return state_table[SOCKET(u)->state];
+ return state_translation_table[SOCKET(u)->state];
}
-static void socket_fd_event(Unit *u, int fd, uint32_t events) {
+static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
Socket *s = SOCKET(u);
assert(s);
- log_info("Incoming traffic on %s", unit_id(u));
+ log_debug("Incoming traffic on %s", unit_id(u));
- if (events != POLLIN)
+ if (events != EPOLLIN)
socket_enter_stop_pre(s, false);
socket_enter_running(s);
assert(s);
assert(pid >= 0);
- success = code == CLD_EXITED || status == 0;
+ success = code == CLD_EXITED && status == 0;
s->failure = s->failure || !success;
assert(s->control_pid == pid);
exec_status_fill(&s->control_command->exec_status, pid, code, status);
s->control_pid = 0;
- log_debug("%s: control process exited, code=%s status=%i", unit_id(u), sigchld_code(code), status);
+ log_debug("%s control process exited, code=%s status=%i", unit_id(u), sigchld_code(code), status);
if (s->control_command->command_next &&
- (success || (s->state == SOCKET_EXEC_STOP_PRE || s->state == SOCKET_EXEC_STOP_POST)))
+ (success || (s->state == SOCKET_EXEC_STOP_PRE || s->state == SOCKET_EXEC_STOP_POST))) {
+ log_debug("%s running next command for the state %s", unit_id(u), state_string_table[s->state]);
socket_run_next(s, success);
- else {
+ } else {
/* No further commands for this step, so let's figure
* out what to do next */
+ log_debug("%s got final SIGCHLD for state %s", unit_id(u), state_string_table[s->state]);
+
switch (s->state) {
case SOCKET_START_PRE:
if (success)
- socket_enter_start_pre(s);
+ socket_enter_start_post(s);
else
socket_enter_stop_pre(s, false);
break;
case SOCKET_START_POST:
if (success)
- socket_set_state(s, SOCKET_LISTENING);
+ socket_enter_listening(s);
else
socket_enter_stop_pre(s, false);
break;
}
}
-static void socket_timer_event(Unit *u, int id, uint64_t elapsed) {
+static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
Socket *s = SOCKET(u);
assert(s);
assert(elapsed == 1);
- assert(s->timer_id == id);
+ assert(w == &s->timer_watch);
switch (s->state) {
return 0;
}
+void socket_notify_service_dead(Socket *s) {
+ assert(s);
+
+ /* The service is dead. Dang. */
+
+ if (s->state == SOCKET_RUNNING) {
+ log_debug("%s got notified about service death.", unit_id(UNIT(s)));
+ socket_enter_listening(s);
+ }
+}
+
const UnitVTable socket_vtable = {
.suffix = ".socket",
~ianmdlvl / elogind.git / blobdiff