#include <sys/epoll.h>
#include <signal.h>
#include <arpa/inet.h>
+#include <mqueue.h>
#include "unit.h"
#include "socket.h"
Socket *s = SOCKET(u);
assert(u);
- assert(u->meta.load_state == UNIT_STUB);
+ assert(u->load_state == UNIT_STUB);
s->backlog = SOMAXCONN;
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
s->directory_mode = 0755;
- s->socket_mode = 0777;
+ s->socket_mode = 0666;
s->max_connections = 64;
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->exec_context.std_output = u->manager->default_std_output;
+ s->exec_context.std_error = u->manager->default_std_error;
s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
}
static void socket_done(Unit *u) {
Socket *s = SOCKET(u);
SocketPort *p;
- Meta *i;
assert(s);
socket_unwatch_control_pid(s);
- s->service = NULL;
+ unit_ref_unset(&s->service);
free(s->tcp_congestion);
s->tcp_congestion = NULL;
s->bind_to_device = NULL;
unit_unwatch_timer(u, &s->timer_watch);
-
- /* Make sure no service instance refers to us anymore. */
- LIST_FOREACH(units_per_type, i, u->meta.manager->units_per_type[UNIT_SERVICE]) {
- Service *service = (Service *) i;
-
- if (service->accept_socket == s)
- service->accept_socket = NULL;
-
- set_remove(service->configured_sockets, s);
- }
}
static int socket_instantiate_service(Socket *s) {
* here. For Accept=no this is mostly a NOP since the service
* is figured out at load time anyway. */
- if (s->service)
+ if (UNIT_DEREF(s->service))
return 0;
assert(s->accept);
- if (!(prefix = unit_name_to_prefix(s->meta.id)))
+ if (!(prefix = unit_name_to_prefix(UNIT(s)->id)))
return -ENOMEM;
r = asprintf(&name, "%s@%u.service", prefix, s->n_accepted);
if (r < 0)
return -ENOMEM;
- r = manager_load_unit(s->meta.manager, name, NULL, NULL, &u);
+ r = manager_load_unit(UNIT(s)->manager, name, NULL, NULL, &u);
free(name);
if (r < 0)
}
#endif
- u->meta.no_gc = true;
- s->service = SERVICE(u);
- return 0;
+ u->no_gc = true;
+ unit_ref_set(&s->service, u);
+
+ return unit_add_two_dependencies(UNIT(s), UNIT_BEFORE, UNIT_TRIGGERS, u, false);
}
static bool have_non_accept_socket(Socket *s) {
static int socket_verify(Socket *s) {
assert(s);
- if (s->meta.load_state != UNIT_LOADED)
+ if (UNIT(s)->load_state != UNIT_LOADED)
return 0;
if (!s->ports) {
- log_error("%s lacks Listen setting. Refusing.", s->meta.id);
+ log_error("%s lacks Listen setting. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (s->accept && have_non_accept_socket(s)) {
- log_error("%s configured for accepting sockets, but sockets are non-accepting. Refusing.", s->meta.id);
+ log_error("%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("%s's MaxConnection setting too small. Refusing.", s->meta.id);
+ log_error("%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
return -EINVAL;
}
- if (s->accept && s->service) {
- log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", s->meta.id);
+ if (s->accept && UNIT_DEREF(s->service)) {
+ log_error("Explicit service configuration for accepting sockets not supported on %s. Refusing.", UNIT(s)->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);
+ log_error("%s has PAM enabled. Kill mode must be set to 'control-group'. Refusing.", UNIT(s)->id);
return -EINVAL;
}
if (p->type == SOCKET_SOCKET) {
if (socket_address_needs_mount(&p->address, prefix))
return true;
- } else {
- assert(p->type == SOCKET_FIFO);
+ } else if (p->type == SOCKET_FIFO || p->type == SOCKET_SPECIAL) {
if (path_startswith(p->path, prefix))
return true;
}
assert(s);
assert(m);
- if (s->meta.load_state != UNIT_LOADED ||
- m->meta.load_state != UNIT_LOADED)
+ if (UNIT(s)->load_state != UNIT_LOADED ||
+ UNIT(m)->load_state != UNIT_LOADED)
return 0;
if (!socket_needs_mount(s, m->where))
}
static int socket_add_mount_links(Socket *s) {
- Meta *other;
+ Unit *other;
int r;
assert(s);
- LIST_FOREACH(units_per_type, other, s->meta.manager->units_per_type[UNIT_MOUNT])
- if ((r = socket_add_one_mount_link(s, (Mount*) other)) < 0)
+ LIST_FOREACH(units_by_type, other, UNIT(s)->manager->units_by_type[UNIT_MOUNT])
+ if ((r = socket_add_one_mount_link(s, MOUNT(other))) < 0)
return r;
return 0;
int r;
assert(s);
- if (s->meta.manager->running_as == MANAGER_SYSTEM) {
+ if (UNIT(s)->manager->running_as == MANAGER_SYSTEM) {
if ((r = unit_add_dependency_by_name(UNIT(s), UNIT_BEFORE, SPECIAL_SOCKETS_TARGET, NULL, true)) < 0)
return r;
return unit_add_two_dependencies_by_name(UNIT(s), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
}
+static bool socket_has_exec(Socket *s) {
+ unsigned i;
+ assert(s);
+
+ for (i = 0; i < _SOCKET_EXEC_COMMAND_MAX; i++)
+ if (s->exec_command[i])
+ return true;
+
+ return false;
+}
+
static int socket_load(Unit *u) {
Socket *s = SOCKET(u);
int r;
assert(u);
- assert(u->meta.load_state == UNIT_STUB);
+ 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->meta.load_state == UNIT_LOADED) {
+ if (u->load_state == UNIT_LOADED) {
if (have_non_accept_socket(s)) {
- if (!s->service)
- if ((r = unit_load_related_unit(u, ".service", (Unit**) &s->service)) < 0)
+ if (!UNIT_DEREF(s->service)) {
+ Unit *x;
+
+ r = unit_load_related_unit(u, ".service", &x);
+ if (r < 0)
return r;
- if ((r = unit_add_dependency(u, UNIT_BEFORE, UNIT(s->service), true)) < 0)
+ unit_ref_set(&s->service, x);
+ }
+
+ 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;
- if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
- return r;
+ if (socket_has_exec(s))
+ if ((r = unit_add_exec_dependencies(u, &s->exec_context)) < 0)
+ return r;
if ((r = unit_add_default_cgroups(u)) < 0)
return r;
- if (s->meta.default_dependencies)
+ if (UNIT(s)->default_dependencies)
if ((r = socket_add_default_dependencies(s)) < 0)
return r;
}
fprintf(f,
"%sSocket State: %s\n"
+ "%sResult: %s\n"
"%sBindIPv6Only: %s\n"
"%sBacklog: %u\n"
"%sSocketMode: %04o\n"
"%sDirectoryMode: %04o\n"
"%sKeepAlive: %s\n"
"%sFreeBind: %s\n"
+ "%sTransparent: %s\n"
+ "%sBroadcast: %s\n"
+ "%sPassCredentials: %s\n"
+ "%sPassSecurity: %s\n"
"%sTCPCongestion: %s\n",
prefix, socket_state_to_string(s->state),
+ prefix, socket_result_to_string(s->result),
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->transparent),
+ prefix, yes_no(s->broadcast),
+ prefix, yes_no(s->pass_cred),
+ prefix, yes_no(s->pass_sec),
prefix, strna(s->tcp_congestion));
if (s->control_pid > 0)
"%sMark: %i\n",
prefix, s->mark);
+ if (s->mq_maxmsg > 0)
+ fprintf(f,
+ "%sMessageQueueMaxMessages: %li\n",
+ prefix, s->mq_maxmsg);
+
+ if (s->mq_msgsize > 0)
+ fprintf(f,
+ "%sMessageQueueMessageSize: %li\n",
+ prefix, s->mq_msgsize);
+
LIST_FOREACH(port, p, s->ports) {
if (p->type == SOCKET_SOCKET) {
fprintf(f, "%s%s: %s\n", prefix, listen_lookup(socket_address_family(&p->address), p->address.type), t);
free(k);
- } else
+ } else if (p->type == SOCKET_SPECIAL)
+ fprintf(f, "%sListenSpecial: %s\n", prefix, p->path);
+ else if (p->type == SOCKET_MQUEUE)
+ fprintf(f, "%sListenMessageQueue: %s\n", prefix, p->path);
+ else
fprintf(f, "%sListenFIFO: %s\n", prefix, p->path);
}
b = ntohl(remote.in.sin_addr.s_addr);
if (asprintf(&r,
- "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
+ "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
+ nr,
a >> 24, (a >> 16) & 0xFF, (a >> 8) & 0xFF, a & 0xFF,
ntohs(local.in.sin_port),
b >> 24, (b >> 16) & 0xFF, (b >> 8) & 0xFF, b & 0xFF,
*b = remote.in6.sin6_addr.s6_addr+12;
if (asprintf(&r,
- "%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
+ "%u-%u.%u.%u.%u:%u-%u.%u.%u.%u:%u",
+ nr,
a[0], a[1], a[2], a[3],
ntohs(local.in6.sin6_port),
b[0], b[1], b[2], b[3],
char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
if (asprintf(&r,
- "%s:%u-%s:%u",
+ "%u-%s:%u-%s:%u",
+ nr,
inet_ntop(AF_INET6, &local.in6.sin6_addr, a, sizeof(a)),
ntohs(local.in6.sin6_port),
inet_ntop(AF_INET6, &remote.in6.sin6_addr, b, sizeof(b)),
log_warning("SO_KEEPALIVE failed: %m");
}
+ if (s->broadcast) {
+ int one = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) < 0)
+ log_warning("SO_BROADCAST failed: %m");
+ }
+
+ if (s->pass_cred) {
+ int one = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &one, sizeof(one)) < 0)
+ log_warning("SO_PASSCRED failed: %m");
+ }
+
+ if (s->pass_sec) {
+ int one = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_PASSSEC, &one, sizeof(one)) < 0)
+ log_warning("SO_PASSSEC failed: %m");
+ }
+
if (s->priority >= 0)
if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, &s->priority, sizeof(s->priority)) < 0)
log_warning("SO_PRIORITY failed: %m");
if (s->receive_buffer > 0) {
int value = (int) s->receive_buffer;
- if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0)
- log_warning("SO_RCVBUF failed: %m");
+
+ /* We first try with SO_RCVBUFFORCE, in case we have the perms for that */
+
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &value, sizeof(value)) < 0)
+ if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &value, sizeof(value)) < 0)
+ log_warning("SO_RCVBUF failed: %m");
}
if (s->send_buffer > 0) {
int value = (int) s->send_buffer;
- if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0)
- log_warning("SO_SNDBUF failed: %m");
+ if (setsockopt(fd, SOL_SOCKET, SO_SNDBUFFORCE, &value, sizeof(value)) < 0)
+ if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &value, sizeof(value)) < 0)
+ log_warning("SO_SNDBUF failed: %m");
}
if (s->mark >= 0)
log_warning("F_SETPIPE_SZ: %m");
}
-
static int fifo_address_create(
const char *path,
mode_t directory_mode,
r = mkfifo(path, socket_mode);
umask(old_mask);
- if (r < 0) {
+ if (r < 0 && errno != EEXIST) {
r = -errno;
goto fail;
}
return r;
}
+static int special_address_create(
+ const char *path,
+ int *_fd) {
+
+ int fd = -1, r = 0;
+ struct stat st;
+
+ assert(path);
+ assert(_fd);
+
+ if ((fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ if (fstat(fd, &st) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ /* Check whether this is a /proc, /sys or /dev file or char device */
+ if (!S_ISREG(st.st_mode) && !S_ISCHR(st.st_mode)) {
+ r = -EEXIST;
+ goto fail;
+ }
+
+ *_fd = fd;
+ return 0;
+
+fail:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
+static int mq_address_create(
+ const char *path,
+ mode_t mq_mode,
+ long maxmsg,
+ long msgsize,
+ int *_fd) {
+
+ int fd = -1, r = 0;
+ struct stat st;
+ mode_t old_mask;
+ struct mq_attr _attr, *attr = NULL;
+
+ assert(path);
+ assert(_fd);
+
+ if (maxmsg > 0 && msgsize > 0) {
+ zero(_attr);
+ _attr.mq_flags = O_NONBLOCK;
+ _attr.mq_maxmsg = maxmsg;
+ _attr.mq_msgsize = msgsize;
+ attr = &_attr;
+ }
+
+ /* Enforce the right access mode for the mq */
+ old_mask = umask(~ mq_mode);
+
+ /* Include the original umask in our mask */
+ umask(~mq_mode | old_mask);
+
+ fd = mq_open(path, O_RDONLY|O_CLOEXEC|O_NONBLOCK|O_CREAT, mq_mode, attr);
+ umask(old_mask);
+
+ if (fd < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ if (fstat(fd, &st) < 0) {
+ r = -errno;
+ goto fail;
+ }
+
+ if ((st.st_mode & 0777) != (mq_mode & ~old_mask) ||
+ st.st_uid != getuid() ||
+ st.st_gid != getgid()) {
+
+ r = -EEXIST;
+ goto fail;
+ }
+
+ *_fd = fd;
+ return 0;
+
+fail:
+ if (fd >= 0)
+ close_nointr_nofail(fd);
+
+ return r;
+}
+
static int socket_open_fds(Socket *s) {
SocketPort *p;
int r;
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) {
+ if (UNIT_DEREF(s->service) &&
+ SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]) {
+ r = label_get_create_label_from_exe(SERVICE(UNIT_DEREF(s->service))->exec_command[SERVICE_EXEC_START]->path, &label);
+
+ if (r < 0) {
if (r != -EPERM)
return r;
}
+ }
know_label = true;
}
s->bind_ipv6_only,
s->bind_to_device,
s->free_bind,
+ s->transparent,
s->directory_mode,
s->socket_mode,
label,
socket_apply_socket_options(s, p->fd);
+ } else if (p->type == SOCKET_SPECIAL) {
+
+ if ((r = special_address_create(
+ p->path,
+ &p->fd)) < 0)
+ goto rollback;
+
} else if (p->type == SOCKET_FIFO) {
if ((r = fifo_address_create(
goto rollback;
socket_apply_fifo_options(s, p->fd);
+ } else if (p->type == SOCKET_MQUEUE) {
+ if ((r = mq_address_create(
+ p->path,
+ s->socket_mode,
+ s->mq_maxmsg,
+ s->mq_msgsize,
+ &p->fd)) < 0)
+ goto rollback;
} else
assert_not_reached("Unknown port type");
}
if (state != old_state)
log_debug("%s changed %s -> %s",
- s->meta.id,
+ UNIT(s)->id,
socket_state_to_string(old_state),
socket_state_to_string(state));
argv,
&s->exec_context,
NULL, 0,
- s->meta.manager->environment,
+ UNIT(s)->manager->environment,
true,
true,
true,
- s->meta.manager->confirm_spawn,
- s->meta.cgroup_bondings,
+ UNIT(s)->manager->confirm_spawn,
+ UNIT(s)->cgroup_bondings,
+ UNIT(s)->cgroup_attributes,
&pid);
strv_free(argv);
return r;
}
-static void socket_enter_dead(Socket *s, bool success) {
+static void socket_enter_dead(Socket *s, SocketResult f) {
assert(s);
- if (!success)
- s->failure = true;
+ if (f != SOCKET_SUCCESS)
+ s->result = f;
- socket_set_state(s, s->failure ? SOCKET_FAILED : SOCKET_DEAD);
+ socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD);
}
-static void socket_enter_signal(Socket *s, SocketState state, bool success);
+static void socket_enter_signal(Socket *s, SocketState state, SocketResult f);
-static void socket_enter_stop_post(Socket *s, bool success) {
+static void socket_enter_stop_post(Socket *s, SocketResult f) {
int r;
assert(s);
- if (!success)
- s->failure = true;
+ if (f != SOCKET_SUCCESS)
+ s->result = f;
socket_unwatch_control_pid(s);
socket_set_state(s, SOCKET_STOP_POST);
} else
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, true);
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_SUCCESS);
return;
fail:
- log_warning("%s failed to run 'stop-post' task: %s", s->meta.id, strerror(-r));
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
+ log_warning("%s failed to run 'stop-post' task: %s", UNIT(s)->id, strerror(-r));
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES);
}
-static void socket_enter_signal(Socket *s, SocketState state, bool success) {
+static void socket_enter_signal(Socket *s, SocketState state, SocketResult f) {
int r;
Set *pid_set = NULL;
bool wait_for_exit = false;
assert(s);
- if (!success)
- s->failure = true;
+ if (f != SOCKET_SUCCESS)
+ s->result = f;
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 ((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, true, pid_set)) < 0) {
+ if ((r = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, sig, true, pid_set)) < 0) {
if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
log_warning("Failed to kill control group: %s", strerror(-r));
} else if (r > 0)
socket_set_state(s, state);
} else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
- socket_enter_stop_post(s, true);
+ socket_enter_stop_post(s, SOCKET_SUCCESS);
else
- socket_enter_dead(s, true);
+ socket_enter_dead(s, SOCKET_SUCCESS);
return;
fail:
- log_warning("%s failed to kill processes: %s", s->meta.id, strerror(-r));
+ log_warning("%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, false);
+ socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
else
- socket_enter_dead(s, false);
+ socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
if (pid_set)
set_free(pid_set);
}
-static void socket_enter_stop_pre(Socket *s, bool success) {
+static void socket_enter_stop_pre(Socket *s, SocketResult f) {
int r;
assert(s);
- if (!success)
- s->failure = true;
+ if (f != SOCKET_SUCCESS)
+ s->result = f;
socket_unwatch_control_pid(s);
socket_set_state(s, SOCKET_STOP_PRE);
} else
- socket_enter_stop_post(s, true);
+ socket_enter_stop_post(s, SOCKET_SUCCESS);
return;
fail:
- log_warning("%s failed to run 'stop-pre' task: %s", s->meta.id, strerror(-r));
- socket_enter_stop_post(s, false);
+ log_warning("%s failed to run 'stop-pre' task: %s", UNIT(s)->id, strerror(-r));
+ socket_enter_stop_post(s, SOCKET_FAILURE_RESOURCES);
}
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", s->meta.id, strerror(-r));
+ r = socket_watch_fds(s);
+ if (r < 0) {
+ log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
return;
fail:
- socket_enter_stop_pre(s, false);
+ socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
}
static void socket_enter_start_post(Socket *s) {
int r;
assert(s);
- if ((r = socket_open_fds(s)) < 0) {
- log_warning("%s failed to listen on sockets: %s", s->meta.id, strerror(-r));
+ r = socket_open_fds(s);
+ if (r < 0) {
+ log_warning("%s failed to listen on sockets: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
s->control_command_id = SOCKET_EXEC_START_POST;
if ((s->control_command = s->exec_command[SOCKET_EXEC_START_POST])) {
- if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0) {
- log_warning("%s failed to run 'start-post' task: %s", s->meta.id, strerror(-r));
+ r = socket_spawn(s, s->control_command, &s->control_pid);
+ if (r < 0) {
+ log_warning("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
goto fail;
}
return;
fail:
- socket_enter_stop_pre(s, false);
+ socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
}
static void socket_enter_start_pre(Socket *s) {
return;
fail:
- log_warning("%s failed to run 'start-pre' task: %s", s->meta.id, strerror(-r));
- socket_enter_dead(s, false);
+ log_warning("%s failed to run 'start-pre' task: %s", UNIT(s)->id, strerror(-r));
+ socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
}
static void socket_enter_running(Socket *s, int cfd) {
/* We don't take connections anymore if we are supposed to
* shut down anyway */
if (unit_pending_inactive(UNIT(s))) {
- log_debug("Suppressing connection request on %s since unit stop is scheduled.", s->meta.id);
+ log_debug("Suppressing connection request on %s since unit stop is scheduled.", UNIT(s)->id);
if (cfd >= 0)
close_nointr_nofail(cfd);
/* Flush all sockets by closing and reopening them */
socket_close_fds(s);
- if ((r = socket_watch_fds(s)) < 0) {
- log_warning("%s failed to watch sockets: %s", s->meta.id, strerror(-r));
- socket_enter_stop_pre(s, false);
+ r = socket_watch_fds(s);
+ if (r < 0) {
+ log_warning("%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;
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;
- }
+ SET_FOREACH(u, UNIT(s)->dependencies[UNIT_TRIGGERS], i)
+ if (unit_pending_active(u)) {
+ pending = true;
+ break;
+ }
- if (!pending)
- if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0)
+ if (!pending) {
+ r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT_DEREF(s->service), JOB_REPLACE, true, &error, NULL);
+ if (r < 0)
goto fail;
+ }
socket_set_state(s, SOCKET_RUNNING);
} else {
return;
}
- if ((r = socket_instantiate_service(s)) < 0)
+ r = socket_instantiate_service(s);
+ if (r < 0)
goto fail;
- if ((r = instance_from_socket(cfd, s->n_accepted, &instance)) < 0)
- goto fail;
+ r = instance_from_socket(cfd, s->n_accepted, &instance);
+ if (r < 0) {
+ if (r != -ENOTCONN)
+ goto fail;
- if (!(prefix = unit_name_to_prefix(s->meta.id))) {
+ /* ENOTCONN is legitimate if TCP RST was received.
+ * This connection is over, but the socket unit lives on. */
+ close_nointr_nofail(cfd);
+ return;
+ }
+
+ prefix = unit_name_to_prefix(UNIT(s)->id);
+ if (!prefix) {
free(instance);
r = -ENOMEM;
goto fail;
goto fail;
}
- if ((r = unit_add_name(UNIT(s->service), name)) < 0) {
+ r = unit_add_name(UNIT_DEREF(s->service), name);
+ if (r < 0) {
free(name);
goto fail;
}
- service = s->service;
- s->service = NULL;
+ service = SERVICE(UNIT_DEREF(s->service));
+ unit_ref_unset(&s->service);
s->n_accepted ++;
- service->meta.no_gc = false;
+ UNIT(service)->no_gc = false;
unit_choose_id(UNIT(service), name);
free(name);
- if ((r = service_set_socket_fd(service, cfd, s)) < 0)
+ r = service_set_socket_fd(service, cfd, s);
+ if (r < 0)
goto fail;
cfd = -1;
s->n_connections ++;
- if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL)) < 0)
+ r = manager_add_job(UNIT(s)->manager, JOB_START, UNIT(service), JOB_REPLACE, true, &error, NULL);
+ if (r < 0)
goto fail;
/* Notify clients about changed counters */
return;
fail:
- log_warning("%s failed to queue socket startup job: %s", s->meta.id, bus_error(&error, r));
- socket_enter_stop_pre(s, false);
+ log_warning("%s failed to queue socket startup job: %s", UNIT(s)->id, bus_error(&error, r));
if (cfd >= 0)
close_nointr_nofail(cfd);
dbus_error_free(&error);
}
-static void socket_run_next(Socket *s, bool success) {
+static void socket_run_next(Socket *s) {
int r;
assert(s);
assert(s->control_command);
assert(s->control_command->command_next);
- if (!success)
- s->failure = true;
-
socket_unwatch_control_pid(s);
s->control_command = s->control_command->command_next;
return;
fail:
- log_warning("%s failed to run next task: %s", s->meta.id, strerror(-r));
+ log_warning("%s failed to run next task: %s", UNIT(s)->id, strerror(-r));
if (s->state == SOCKET_START_POST)
- socket_enter_stop_pre(s, false);
+ socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
else if (s->state == SOCKET_STOP_POST)
- socket_enter_dead(s, false);
+ socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
else
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES);
}
static int socket_start(Unit *u) {
return 0;
/* Cannot run this without the service being around */
- if (s->service) {
- if (s->service->meta.load_state != UNIT_LOADED) {
- log_error("Socket service %s not loaded, refusing.", s->service->meta.id);
+ if (UNIT_DEREF(s->service)) {
+ Service *service;
+
+ service = SERVICE(UNIT_DEREF(s->service));
+
+ if (UNIT(service)->load_state != UNIT_LOADED) {
+ log_error("Socket service %s not loaded, refusing.", UNIT(service)->id);
return -ENOENT;
}
/* If the service is already active we cannot start the
* socket */
- if (s->service->state != SERVICE_DEAD &&
- s->service->state != SERVICE_FAILED &&
- s->service->state != SERVICE_AUTO_RESTART) {
- log_error("Socket service %s already active, refusing.", s->service->meta.id);
+ if (service->state != SERVICE_DEAD &&
+ service->state != SERVICE_FAILED &&
+ service->state != SERVICE_AUTO_RESTART) {
+ log_error("Socket service %s already active, refusing.", UNIT(service)->id);
return -EBUSY;
}
#ifdef HAVE_SYSV_COMPAT
- if (s->service->sysv_path) {
+ if (service->sysv_path) {
log_error("Using SysV services for socket activation is not supported. Refusing.");
return -ENOENT;
}
assert(s->state == SOCKET_DEAD || s->state == SOCKET_FAILED);
- s->failure = false;
+ s->result = SOCKET_SUCCESS;
socket_enter_start_pre(s);
return 0;
}
* kill mode. */
if (s->state == SOCKET_START_PRE ||
s->state == SOCKET_START_POST) {
- socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, true);
+ socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_SUCCESS);
return -EAGAIN;
}
assert(s->state == SOCKET_LISTENING || s->state == SOCKET_RUNNING);
- socket_enter_stop_pre(s, true);
+ socket_enter_stop_pre(s, SOCKET_SUCCESS);
return 0;
}
assert(fds);
unit_serialize_item(u, f, "state", socket_state_to_string(s->state));
- unit_serialize_item(u, f, "failure", yes_no(s->failure));
+ unit_serialize_item(u, f, "result", socket_result_to_string(s->result));
unit_serialize_item_format(u, f, "n-accepted", "%u", s->n_accepted);
if (s->control_pid > 0)
else
unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t);
free(t);
- } else {
+ } else if (p->type == SOCKET_SPECIAL)
+ unit_serialize_item_format(u, f, "special", "%i %s", copy, p->path);
+ else {
assert(p->type == SOCKET_FIFO);
unit_serialize_item_format(u, f, "fifo", "%i %s", copy, p->path);
}
log_debug("Failed to parse state value %s", value);
else
s->deserialized_state = state;
- } else if (streq(key, "failure")) {
- int b;
+ } else if (streq(key, "result")) {
+ SocketResult f;
- if ((b = parse_boolean(value)) < 0)
- log_debug("Failed to parse failure value %s", value);
- else
- s->failure = b || s->failure;
+ f = socket_result_from_string(value);
+ if (f < 0)
+ log_debug("Failed to parse result value %s", value);
+ else if (f != SOCKET_SUCCESS)
+ s->result = f;
} else if (streq(key, "n-accepted")) {
unsigned k;
else {
LIST_FOREACH(port, p, s->ports)
- if (streq(p->path, value+skip))
+ if (p->type == SOCKET_FIFO &&
+ streq_ptr(p->path, value+skip))
+ break;
+
+ if (p) {
+ if (p->fd >= 0)
+ close_nointr_nofail(p->fd);
+ p->fd = fdset_remove(fds, fd);
+ }
+ }
+
+ } else if (streq(key, "special")) {
+ int fd, skip = 0;
+ SocketPort *p;
+
+ if (sscanf(value, "%i %n", &fd, &skip) < 1 || fd < 0 || !fdset_contains(fds, fd))
+ log_debug("Failed to parse special value %s", value);
+ else {
+
+ LIST_FOREACH(port, p, s->ports)
+ if (p->type == SOCKET_SPECIAL &&
+ streq_ptr(p->path, value+skip))
break;
if (p) {
if (s->state != SOCKET_LISTENING)
return;
- log_debug("Incoming traffic on %s", u->meta.id);
+ log_debug("Incoming traffic on %s", u->id);
if (events != EPOLLIN) {
- log_error("Got invalid poll event on socket.");
+
+ if (events & EPOLLHUP)
+ log_error("%s: Got POLLHUP on a listening socket. The service probably invoked shutdown() on it, and should better not do that.", u->id);
+ else
+ log_error("%s: Got unexpected poll event (0x%x) on socket.", u->id, events);
+
goto fail;
}
return;
fail:
- socket_enter_stop_pre(s, false);
+ socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
}
static void socket_sigchld_event(Unit *u, pid_t pid, int code, int status) {
Socket *s = SOCKET(u);
- bool success;
+ SocketResult f;
assert(s);
assert(pid >= 0);
s->control_pid = 0;
- success = is_clean_exit(code, status);
+ if (is_clean_exit(code, status))
+ f = SOCKET_SUCCESS;
+ else if (code == CLD_EXITED)
+ f = SOCKET_FAILURE_EXIT_CODE;
+ else if (code == CLD_KILLED)
+ f = SOCKET_FAILURE_SIGNAL;
+ else if (code == CLD_DUMPED)
+ f = SOCKET_FAILURE_CORE_DUMP;
+ else
+ assert_not_reached("Unknown code");
if (s->control_command) {
- exec_status_exit(&s->control_command->exec_status, pid, code, status, s->exec_context.utmp_id);
+ exec_status_exit(&s->control_command->exec_status, &s->exec_context, pid, code, status);
if (s->control_command->ignore)
- success = true;
+ f = SOCKET_SUCCESS;
}
- 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;
+ log_full(f == SOCKET_SUCCESS ? LOG_DEBUG : LOG_NOTICE,
+ "%s control process exited, code=%s status=%i", u->id, sigchld_code_to_string(code), status);
+
+ if (f != SOCKET_SUCCESS)
+ s->result = f;
- if (s->control_command && s->control_command->command_next && success) {
- log_debug("%s running next command for state %s", u->meta.id, socket_state_to_string(s->state));
- socket_run_next(s, success);
+ if (s->control_command &&
+ s->control_command->command_next &&
+ f == SOCKET_SUCCESS) {
+
+ log_debug("%s running next command for state %s", u->id, socket_state_to_string(s->state));
+ socket_run_next(s);
} else {
s->control_command = NULL;
s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
/* No further commands for this step, so let's figure
* out what to do next */
- log_debug("%s got final SIGCHLD for state %s", u->meta.id, socket_state_to_string(s->state));
+ log_debug("%s got final SIGCHLD for state %s", u->id, socket_state_to_string(s->state));
switch (s->state) {
case SOCKET_START_PRE:
- if (success)
+ if (f == SOCKET_SUCCESS)
socket_enter_start_post(s);
else
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, f);
break;
case SOCKET_START_POST:
- if (success)
+ if (f == SOCKET_SUCCESS)
socket_enter_listening(s);
else
- socket_enter_stop_pre(s, false);
+ socket_enter_stop_pre(s, f);
break;
case SOCKET_STOP_PRE:
case SOCKET_STOP_PRE_SIGTERM:
case SOCKET_STOP_PRE_SIGKILL:
- socket_enter_stop_post(s, success);
+ socket_enter_stop_post(s, f);
break;
case SOCKET_STOP_POST:
case SOCKET_FINAL_SIGTERM:
case SOCKET_FINAL_SIGKILL:
- socket_enter_dead(s, success);
+ socket_enter_dead(s, f);
break;
default:
switch (s->state) {
case SOCKET_START_PRE:
- log_warning("%s starting timed out. Terminating.", u->meta.id);
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
+ log_warning("%s starting timed out. Terminating.", u->id);
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT);
break;
case SOCKET_START_POST:
- log_warning("%s starting timed out. Stopping.", u->meta.id);
- socket_enter_stop_pre(s, false);
+ log_warning("%s starting timed out. Stopping.", u->id);
+ socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT);
break;
case SOCKET_STOP_PRE:
- log_warning("%s stopping timed out. Terminating.", u->meta.id);
- socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, false);
+ log_warning("%s stopping timed out. Terminating.", u->id);
+ socket_enter_signal(s, SOCKET_STOP_PRE_SIGTERM, SOCKET_FAILURE_TIMEOUT);
break;
case SOCKET_STOP_PRE_SIGTERM:
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);
+ log_warning("%s stopping timed out. Killing.", u->id);
+ socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT);
} else {
- log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->meta.id);
- socket_enter_stop_post(s, false);
+ log_warning("%s stopping timed out. Skipping SIGKILL. Ignoring.", u->id);
+ socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT);
}
break;
case SOCKET_STOP_PRE_SIGKILL:
- log_warning("%s still around after SIGKILL. Ignoring.", u->meta.id);
- socket_enter_stop_post(s, false);
+ log_warning("%s still around after SIGKILL. Ignoring.", u->id);
+ socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT);
break;
case SOCKET_STOP_POST:
- log_warning("%s stopping timed out (2). Terminating.", u->meta.id);
- socket_enter_signal(s, SOCKET_FINAL_SIGTERM, false);
+ log_warning("%s stopping timed out (2). Terminating.", u->id);
+ socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_TIMEOUT);
break;
case SOCKET_FINAL_SIGTERM:
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);
+ log_warning("%s stopping timed out (2). Killing.", u->id);
+ socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT);
} else {
- log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->meta.id);
- socket_enter_dead(s, false);
+ log_warning("%s stopping timed out (2). Skipping SIGKILL. Ignoring.", u->id);
+ socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT);
}
break;
case SOCKET_FINAL_SIGKILL:
- log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->meta.id);
- socket_enter_dead(s, false);
+ log_warning("%s still around after SIGKILL (2). Entering failed mode.", u->id);
+ socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT);
break;
default:
if (p->fd >= 0)
rn_fds++;
+ if (rn_fds <= 0) {
+ *fds = NULL;
+ *n_fds = 0;
+ return 0;
+ }
+
if (!(rfds = new(int, rn_fds)))
return -ENOMEM;
return 0;
}
-void socket_notify_service_dead(Socket *s) {
+void socket_notify_service_dead(Socket *s, bool failed_permanent) {
assert(s);
/* The service is dead. Dang!
* services. */
if (s->state == SOCKET_RUNNING) {
- log_debug("%s got notified about service death.", s->meta.id);
- socket_enter_listening(s);
+ log_debug("%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
+ socket_enter_listening(s);
}
}
assert(s->n_connections > 0);
s->n_connections--;
- log_debug("%s: One connection closed, %u left.", s->meta.id, s->n_connections);
+ log_debug("%s: One connection closed, %u left.", UNIT(s)->id, s->n_connections);
}
static void socket_reset_failed(Unit *u) {
if (s->state == SOCKET_FAILED)
socket_set_state(s, SOCKET_DEAD);
- s->failure = false;
+ s->result = SOCKET_SUCCESS;
}
static int socket_kill(Unit *u, KillWho who, KillMode mode, int signo, DBusError *error) {
if (who == KILL_MAIN) {
dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "Socket units have no main processes");
- return -EINVAL;
+ return -ESRCH;
}
if (s->control_pid <= 0 && who == KILL_CONTROL) {
dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
- return -ENOENT;
+ return -ESRCH;
}
- if (s->control_pid > 0)
- if (kill(s->control_pid, signo) < 0)
- r = -errno;
+ if (who == KILL_CONTROL || who == KILL_ALL)
+ if (s->control_pid > 0)
+ if (kill(s->control_pid, signo) < 0)
+ r = -errno;
- if (mode == KILL_CONTROL_GROUP) {
+ if (who == KILL_ALL && mode == KILL_CONTROL_GROUP) {
int q;
if (!(pid_set = set_new(trivial_hash_func, trivial_compare_func)))
goto finish;
}
- if ((q = cgroup_bonding_kill_list(s->meta.cgroup_bondings, signo, false, pid_set)) < 0)
- if (r != -EAGAIN && r != -ESRCH && r != -ENOENT)
+ if ((q = cgroup_bonding_kill_list(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
+ if (q != -EAGAIN && q != -ESRCH && q != -ENOENT)
r = q;
}
DEFINE_STRING_TABLE_LOOKUP(socket_exec_command, SocketExecCommand);
+static const char* const socket_result_table[_SOCKET_RESULT_MAX] = {
+ [SOCKET_SUCCESS] = "success",
+ [SOCKET_FAILURE_RESOURCES] = "resources",
+ [SOCKET_FAILURE_TIMEOUT] = "timeout",
+ [SOCKET_FAILURE_EXIT_CODE] = "exit-code",
+ [SOCKET_FAILURE_SIGNAL] = "signal",
+ [SOCKET_FAILURE_CORE_DUMP] = "core-dump",
+ [SOCKET_FAILURE_SERVICE_FAILED_PERMANENT] = "service-failed-permanent"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(socket_result, SocketResult);
+
const UnitVTable socket_vtable = {
.suffix = ".socket",
+ .object_size = sizeof(Socket),
+ .sections =
+ "Unit\0"
+ "Socket\0"
+ "Install\0",
.init = socket_init,
.done = socket_done,