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main: install crash handler for creating core dumps
[elogind.git]
/
socket.c
diff --git
a/socket.c
b/socket.c
index 6d871f645f707d1d02ea7409c41074a3c4209199..00994daa2907c438e1703a2315efefdf22615ccb 100644
(file)
--- a/
socket.c
+++ b/
socket.c
@@
-30,6
+30,8
@@
#include "unit.h"
#include "socket.h"
#include "log.h"
#include "unit.h"
#include "socket.h"
#include "log.h"
+#include "load-dropin.h"
+#include "load-fragment.h"
static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = UNIT_INACTIVE,
static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
[SOCKET_DEAD] = UNIT_INACTIVE,
@@
-77,7
+79,7
@@
static void socket_done(Unit *u) {
}
exec_context_done(&s->exec_context);
}
exec_context_done(&s->exec_context);
- exec_command_free_array(s->exec_command, _SOCKET_EXEC_MAX);
+ exec_command_free_array(s->exec_command, _SOCKET_EXEC_
COMMAND_
MAX);
s->control_command = NULL;
if (s->control_pid > 0) {
s->control_command = NULL;
if (s->control_pid > 0) {
@@
-88,50
+90,58
@@
static void socket_done(Unit *u) {
s->service = NULL;
free(s->bind_to_device);
s->service = NULL;
free(s->bind_to_device);
+ s->bind_to_device = NULL;
unit_unwatch_timer(u, &s->timer_watch);
}
unit_unwatch_timer(u, &s->timer_watch);
}
-static
int
socket_init(Unit *u) {
+static
void
socket_init(Unit *u) {
Socket *s = SOCKET(u);
Socket *s = SOCKET(u);
- char *t;
- int r;
- /* First, reset everything to the defaults, in case this is a
- * reload */
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
s->state = 0;
s->timer_watch.type = WATCH_INVALID;
s->bind_ipv6_only = false;
s->backlog = SOMAXCONN;
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
s->state = 0;
s->timer_watch.type = WATCH_INVALID;
s->bind_ipv6_only = false;
s->backlog = SOMAXCONN;
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
+ s->directory_mode = 0755;
+ s->socket_mode = 0666;
+ s->kill_mode = 0;
+ s->failure = false;
+ s->control_pid = 0;
+ s->service = NULL;
exec_context_init(&s->exec_context);
exec_context_init(&s->exec_context);
+}
- if ((r = unit_load_fragment_and_dropin(u)) <= 0) {
- if (r == 0)
- r = -ENOENT;
- goto fail;
- }
+static int socket_load(Unit *u) {
+ Socket *s = SOCKET(u);
+ int r;
- if (!(t = unit_name_change_suffix(unit_id(u), ".service"))) {
- r = -ENOMEM;
- goto fail;
- }
+ assert(u);
+ assert(u->meta.load_state == UNIT_STUB);
- r = manager_load_unit(u->meta.manager, t, (Unit**) &s->service);
-
free(t)
;
+ if ((r = unit_load_fragment_and_dropin(u)) < 0)
+
return r
;
- if (r < 0)
- goto fail;
+ /* This is a new unit? Then let's add in some extras */
+ if (u->meta.load_state == UNIT_LOADED) {
-
if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service))) < 0
)
-
goto fail
;
+
if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service))
)
+
return r
;
- return 0;
+ if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service))) < 0)
+ return r;
-fail:
- socket_done(u);
- return r;
+ if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
+ return r;
+
+ if ((r = unit_add_default_cgroup(u)) < 0)
+ return r;
+ }
+
+ return 0;
}
static const char* listen_lookup(int type) {
}
static const char* listen_lookup(int type) {
@@
-149,7
+159,7
@@
static const char* listen_lookup(int type) {
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
- static const char* const command_table[_SOCKET_EXEC_MAX] = {
+ static const char* const command_table[_SOCKET_EXEC_
COMMAND_
MAX] = {
[SOCKET_EXEC_START_PRE] = "StartPre",
[SOCKET_EXEC_START_POST] = "StartPost",
[SOCKET_EXEC_STOP_PRE] = "StopPre",
[SOCKET_EXEC_START_PRE] = "StartPre",
[SOCKET_EXEC_START_POST] = "StartPost",
[SOCKET_EXEC_STOP_PRE] = "StopPre",
@@
-159,22
+169,33
@@
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
SocketExecCommand c;
Socket *s = SOCKET(u);
SocketPort *p;
SocketExecCommand c;
Socket *s = SOCKET(u);
SocketPort *p;
- char *prefix2;
+ const char *prefix2;
+ char *p2;
assert(s);
assert(f);
assert(s);
assert(f);
- prefix2 = strappend(prefix, "\t");
- if (!prefix2)
- prefix2 = "";
+ p2 = strappend(prefix, "\t");
+ prefix2 = p2 ? p2 : prefix;
fprintf(f,
"%sSocket State: %s\n"
"%sBindIPv6Only: %s\n"
fprintf(f,
"%sSocket State: %s\n"
"%sBindIPv6Only: %s\n"
- "%sBacklog: %u\n",
+ "%sBacklog: %u\n"
+ "%sKillMode: %s\n"
+ "%sSocketMode: %04o\n"
+ "%sDirectoryMode: %04o\n",
prefix, state_string_table[s->state],
prefix, yes_no(s->bind_ipv6_only),
prefix, state_string_table[s->state],
prefix, yes_no(s->bind_ipv6_only),
- prefix, s->backlog);
+ prefix, s->backlog,
+ prefix, kill_mode_to_string(s->kill_mode),
+ prefix, s->socket_mode,
+ prefix, s->directory_mode);
+
+ if (s->control_pid > 0)
+ fprintf(f,
+ "%sControl PID: %llu\n",
+ prefix, (unsigned long long) s->control_pid);
if (s->bind_to_device)
fprintf(f,
if (s->bind_to_device)
fprintf(f,
@@
-201,7
+222,7
@@
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
exec_context_dump(&s->exec_context, f, prefix);
exec_context_dump(&s->exec_context, f, prefix);
- for (c = 0; c < _SOCKET_EXEC_MAX; c++) {
+ for (c = 0; c < _SOCKET_EXEC_
COMMAND_
MAX; c++) {
if (!s->exec_command[c])
continue;
if (!s->exec_command[c])
continue;
@@
-211,7
+232,7
@@
static void socket_dump(Unit *u, FILE *f, const char *prefix) {
exec_command_dump_list(s->exec_command[c], f, prefix2);
}
exec_command_dump_list(s->exec_command[c], f, prefix2);
}
- free(p
refix
2);
+ free(p2);
}
static void socket_close_fds(Socket *s) {
}
static void socket_close_fds(Socket *s) {
@@
-243,14
+264,23
@@
static int socket_open_fds(Socket *s) {
if (p->type == SOCKET_SOCKET) {
if (p->type == SOCKET_SOCKET) {
- if ((r = socket_address_listen(&p->address, s->backlog, s->bind_ipv6_only, s->bind_to_device, &p->fd)) < 0)
+ if ((r = socket_address_listen(
+ &p->address,
+ s->backlog,
+ s->bind_ipv6_only,
+ s->bind_to_device,
+ s->directory_mode,
+ s->socket_mode,
+ &p->fd)) < 0)
goto rollback;
} else {
struct stat st;
assert(p->type == SOCKET_FIFO);
goto rollback;
} else {
struct stat st;
assert(p->type == SOCKET_FIFO);
- if (mkfifo(p->path, 0666 & ~s->exec_context.umask) < 0 && errno != EEXIST) {
+ mkdir_parents(p->path, s->directory_mode);
+
+ if (mkfifo(p->path, s->socket_mode) < 0 && errno != EEXIST) {
r = -errno;
goto rollback;
}
r = -errno;
goto rollback;
}
@@
-329,27
+359,16
@@
static void socket_set_state(Socket *s, SocketState state) {
state != SOCKET_STOP_PRE_SIGKILL &&
state != SOCKET_STOP_POST &&
state != SOCKET_STOP_POST_SIGTERM &&
state != SOCKET_STOP_PRE_SIGKILL &&
state != SOCKET_STOP_POST &&
state != SOCKET_STOP_POST_SIGTERM &&
- state != SOCKET_STOP_POST_SIGKILL)
+ state != SOCKET_STOP_POST_SIGKILL)
{
unit_unwatch_timer(UNIT(s), &s->timer_watch);
unit_unwatch_timer(UNIT(s), &s->timer_watch);
- if (state != SOCKET_START_PRE &&
- state != SOCKET_START_POST &&
- state != SOCKET_STOP_PRE &&
- state != SOCKET_STOP_PRE_SIGTERM &&
- state != SOCKET_STOP_PRE_SIGKILL &&
- state != SOCKET_STOP_POST &&
- state != SOCKET_STOP_POST_SIGTERM &&
- state != SOCKET_STOP_POST_SIGKILL)
if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
- if (state != SOCKET_START_PRE &&
- state != SOCKET_START_POST &&
- state != SOCKET_STOP_PRE &&
- state != SOCKET_STOP_POST)
s->control_command = NULL;
s->control_command = NULL;
+ }
if (state != SOCKET_START_POST &&
state != SOCKET_LISTENING &&
if (state != SOCKET_START_POST &&
state != SOCKET_LISTENING &&
@@
-362,12
+381,13
@@
static void socket_set_state(Socket *s, SocketState state) {
if (state != SOCKET_LISTENING)
socket_unwatch_fds(s);
if (state != SOCKET_LISTENING)
socket_unwatch_fds(s);
- log_debug("%s changed %s → %s", unit_id(UNIT(s)), state_string_table[old_state], state_string_table[state]);
+ if (state != old_state)
+ log_debug("%s changed %s → %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]);
}
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) {
+static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
pid_t pid;
int r;
pid_t pid;
int r;
@@
-375,13
+395,16
@@
static int socket_spawn(Socket *s, ExecCommand *c, bool timeout, pid_t *_pid) {
assert(c);
assert(_pid);
assert(c);
assert(_pid);
- if (timeout) {
- if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
- goto fail;
- } else
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
+ goto fail;
- if ((r = exec_spawn(c, &s->exec_context, NULL, 0, &pid)) < 0)
+ if ((r = exec_spawn(c,
+ &s->exec_context,
+ NULL, 0,
+ true,
+ true,
+ UNIT(s)->meta.cgroup_bondings,
+ &pid)) < 0)
goto fail;
if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
goto fail;
if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
@@
-393,8
+416,7
@@
static int socket_spawn(Socket *s, ExecCommand *c, bool timeout, pid_t *_pid) {
return 0;
fail:
return 0;
fail:
- if (timeout)
- unit_unwatch_timer(UNIT(s), &s->timer_watch);
+ unit_unwatch_timer(UNIT(s), &s->timer_watch);
return r;
}
return r;
}
@@
-416,7
+438,7
@@
static void socket_enter_stop_post(Socket *s, bool success) {
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]))
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST]))
- if ((r = socket_spawn(s, s->control_command,
true,
&s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_STOP_POST);
goto fail;
socket_set_state(s, SOCKET_STOP_POST);
@@
-441,13
+463,24
@@
static void socket_enter_signal(Socket *s, SocketState state, bool success) {
if (s->control_pid > 0) {
int sig;
if (s->control_pid > 0) {
int sig;
+ bool sent = false;
sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_POST_SIGTERM) ? SIGTERM : SIGKILL;
sig = (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_POST_SIGTERM) ? SIGTERM : SIGKILL;
- if (kill(s->control_pid, sig) < 0 && errno != ESRCH) {
- r = -errno;
- goto fail;
+ if (s->kill_mode == KILL_CONTROL_GROUP) {
+
+ if ((r = cgroup_bonding_kill_list(UNIT(s)->meta.cgroup_bondings, sig)) < 0) {
+ if (r != -EAGAIN && r != -ESRCH)
+ goto fail;
+ } else
+ sent = true;
}
}
+
+ if (!sent)
+ if (kill(s->kill_mode == KILL_PROCESS ? s->control_pid : -s->control_pid, sig) < 0 && errno != ESRCH) {
+ r = -errno;
+ goto fail;
+ }
}
socket_set_state(s, state);
}
socket_set_state(s, state);
@@
-474,7
+507,7
@@
static void socket_enter_stop_pre(Socket *s, bool success) {
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]))
s->failure = true;
if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE]))
- if ((r = socket_spawn(s, s->control_command,
true,
&s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_STOP_PRE);
goto fail;
socket_set_state(s, SOCKET_STOP_PRE);
@@
-515,7
+548,7
@@
static void socket_enter_start_post(Socket *s) {
}
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) {
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
goto fail;
}
log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
goto fail;
}
@@
-536,7
+569,7
@@
static void socket_enter_start_pre(Socket *s) {
assert(s);
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]))
assert(s);
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_PRE]))
- if ((r = socket_spawn(s, s->control_command,
true,
&s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
socket_set_state(s, SOCKET_START_PRE);
goto fail;
socket_set_state(s, SOCKET_START_PRE);
@@
-579,7
+612,7
@@
static void socket_run_next(Socket *s, bool success) {
s->control_command = s->control_command->command_next;
s->control_command = s->control_command->command_next;
- if ((r = socket_spawn(s, s->control_command,
true,
&s->control_pid)) < 0)
+ if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
goto fail;
return;
goto fail;
return;
@@
-616,6
+649,13
@@
static int socket_start(Unit *u) {
if (s->service->meta.load_state != UNIT_LOADED)
return -ENOENT;
if (s->service->meta.load_state != UNIT_LOADED)
return -ENOENT;
+ /* If the service is alredy actvie we cannot start the
+ * socket */
+ if (s->service->state != SERVICE_DEAD &&
+ s->service->state != SERVICE_MAINTAINANCE &&
+ s->service->state != SERVICE_AUTO_RESTART)
+ return -EBUSY;
+
assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
s->failure = false;
assert(s->state == SOCKET_DEAD || s->state == SOCKET_MAINTAINANCE);
s->failure = false;
@@
-634,6
+674,15
@@
static int socket_stop(Unit *u) {
s->state == SOCKET_START_POST)
return -EAGAIN;
s->state == SOCKET_START_POST)
return -EAGAIN;
+ /* Already on it */
+ if (s->state == SOCKET_STOP_PRE ||
+ s->state == SOCKET_STOP_PRE_SIGTERM ||
+ s->state == SOCKET_STOP_PRE_SIGKILL ||
+ s->state == SOCKET_STOP_POST ||
+ s->state == SOCKET_STOP_POST_SIGTERM ||
+ s->state == SOCKET_STOP_POST_SIGTERM)
+ return 0;
+
assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
socket_enter_stop_pre(s, true);
assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
socket_enter_stop_pre(s, true);
@@
-678,7
+727,7
@@
static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
log_debug("%s control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(code), status);
if (s->control_command->command_next &&
log_debug("%s control process exited, code=%s status=%i", unit_id(u), sigchld_code_to_string(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_
STOP_PRE || s->state == SOCKET
_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 {
log_debug("%s running next command for the state %s", unit_id(u), state_string_table[s->state]);
socket_run_next(s, success);
} else {
@@
-726,14
+775,13
@@
static void socket_timer_event(Unit *u, uint64_t elapsed, Watch *w) {
assert(s);
assert(elapsed == 1);
assert(s);
assert(elapsed == 1);
-
assert(w == &s->timer_watch);
switch (s->state) {
case SOCKET_START_PRE:
case SOCKET_START_POST:
assert(w == &s->timer_watch);
switch (s->state) {
case SOCKET_START_PRE:
case SOCKET_START_POST:
- log_warning("%s
operation
timed out. Stopping.", unit_id(u));
+ log_warning("%s
starting
timed out. Stopping.", unit_id(u));
socket_enter_stop_pre(s, false);
break;
socket_enter_stop_pre(s, false);
break;
@@
-819,6
+867,7
@@
const UnitVTable socket_vtable = {
.suffix = ".socket",
.init = socket_init,
.suffix = ".socket",
.init = socket_init,
+ .load = socket_load,
.done = socket_done,
.dump = socket_dump,
.done = socket_done,
.dump = socket_dump,