move libsystemd_core.la sources into core/

1 files changed, 0 insertions, 2218 deletions

diff --git a/src/socket.c b/src/socket.c
deleted file mode 100644
index 5b24b3422b..0000000000
--- a/src/socket.c
+++ /dev/null
@@ -1,2218 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <sys/epoll.h>
-#include <signal.h>
-#include <arpa/inet.h>
-#include <mqueue.h>
-
-#include "unit.h"
-#include "socket.h"
-#include "netinet/tcp.h"
-#include "log.h"
-#include "load-dropin.h"
-#include "load-fragment.h"
-#include "strv.h"
-#include "mkdir.h"
-#include "unit-name.h"
-#include "dbus-socket.h"
-#include "missing.h"
-#include "special.h"
-#include "bus-errors.h"
-#include "label.h"
-#include "exit-status.h"
-#include "def.h"
-
-static const UnitActiveState state_translation_table[_SOCKET_STATE_MAX] = {
-        [SOCKET_DEAD] = UNIT_INACTIVE,
-        [SOCKET_START_PRE] = UNIT_ACTIVATING,
-        [SOCKET_START_POST] = UNIT_ACTIVATING,
-        [SOCKET_LISTENING] = UNIT_ACTIVE,
-        [SOCKET_RUNNING] = UNIT_ACTIVE,
-        [SOCKET_STOP_PRE] = UNIT_DEACTIVATING,
-        [SOCKET_STOP_PRE_SIGTERM] = UNIT_DEACTIVATING,
-        [SOCKET_STOP_PRE_SIGKILL] = UNIT_DEACTIVATING,
-        [SOCKET_STOP_POST] = UNIT_DEACTIVATING,
-        [SOCKET_FINAL_SIGTERM] = UNIT_DEACTIVATING,
-        [SOCKET_FINAL_SIGKILL] = UNIT_DEACTIVATING,
-        [SOCKET_FAILED] = UNIT_FAILED
-};
-
-static void socket_init(Unit *u) {
-        Socket *s = SOCKET(u);
-
-        assert(u);
-        assert(u->load_state == UNIT_STUB);
-
-        s->backlog = SOMAXCONN;
-        s->timeout_usec = DEFAULT_TIMEOUT_USEC;
-        s->directory_mode = 0755;
-        s->socket_mode = 0666;
-
-        s->max_connections = 64;
-
-        s->priority = -1;
-        s->ip_tos = -1;
-        s->ip_ttl = -1;
-        s->mark = -1;
-
-        exec_context_init(&s->exec_context);
-        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_unwatch_control_pid(Socket *s) {
-        assert(s);
-
-        if (s->control_pid <= 0)
-                return;
-
-        unit_unwatch_pid(UNIT(s), s->control_pid);
-        s->control_pid = 0;
-}
-
-static void socket_done(Unit *u) {
-        Socket *s = SOCKET(u);
-        SocketPort *p;
-
-        assert(s);
-
-        while ((p = s->ports)) {
-                LIST_REMOVE(SocketPort, port, s->ports, p);
-
-                if (p->fd >= 0) {
-                        unit_unwatch_fd(UNIT(s), &p->fd_watch);
-                        close_nointr_nofail(p->fd);
-                }
-
-                free(p->path);
-                free(p);
-        }
-
-        exec_context_done(&s->exec_context);
-        exec_command_free_array(s->exec_command, _SOCKET_EXEC_COMMAND_MAX);
-        s->control_command = NULL;
-
-        socket_unwatch_control_pid(s);
-
-        unit_ref_unset(&s->service);
-
-        free(s->tcp_congestion);
-        s->tcp_congestion = NULL;
-
-        free(s->bind_to_device);
-        s->bind_to_device = NULL;
-
-        unit_unwatch_timer(u, &s->timer_watch);
-}
-
-static int socket_instantiate_service(Socket *s) {
-        char *prefix, *name;
-        int r;
-        Unit *u;
-
-        assert(s);
-
-        /* This fills in s->service if it isn't filled in yet. For
-         * Accept=yes sockets we create the next connection service
-         * here. For Accept=no this is mostly a NOP since the service
-         * is figured out at load time anyway. */
-
-        if (UNIT_DEREF(s->service))
-                return 0;
-
-        assert(s->accept);
-
-        if (!(prefix = unit_name_to_prefix(UNIT(s)->id)))
-                return -ENOMEM;
-
-        r = asprintf(&name, "%s@%u.service", prefix, s->n_accepted);
-        free(prefix);
-
-        if (r < 0)
-                return -ENOMEM;
-
-        r = manager_load_unit(UNIT(s)->manager, name, NULL, NULL, &u);
-        free(name);
-
-        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->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) {
-        SocketPort *p;
-
-        assert(s);
-
-        if (!s->accept)
-                return true;
-
-        LIST_FOREACH(port, p, s->ports) {
-
-                if (p->type != SOCKET_SOCKET)
-                        return true;
-
-                if (!socket_address_can_accept(&p->address))
-                        return true;
-        }
-
-        return false;
-}
-
-static int socket_verify(Socket *s) {
-        assert(s);
-
-        if (UNIT(s)->load_state != UNIT_LOADED)
-                return 0;
-
-        if (!s->ports) {
-                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.", UNIT(s)->id);
-                return -EINVAL;
-        }
-
-        if (s->accept && s->max_connections <= 0) {
-                log_error("%s's MaxConnection setting too small. Refusing.", UNIT(s)->id);
-                return -EINVAL;
-        }
-
-        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.", UNIT(s)->id);
-                return -EINVAL;
-        }
-
-        return 0;
-}
-
-static bool socket_needs_mount(Socket *s, const char *prefix) {
-        SocketPort *p;
-
-        assert(s);
-
-        LIST_FOREACH(port, p, s->ports) {
-
-                if (p->type == SOCKET_SOCKET) {
-                        if (socket_address_needs_mount(&p->address, prefix))
-                                return true;
-                } else if (p->type == SOCKET_FIFO || p->type == SOCKET_SPECIAL) {
-                        if (path_startswith(p->path, prefix))
-                                return true;
-                }
-        }
-
-        return false;
-}
-
-int socket_add_one_mount_link(Socket *s, Mount *m) {
-        int r;
-
-        assert(s);
-        assert(m);
-
-        if (UNIT(s)->load_state != UNIT_LOADED ||
-            UNIT(m)->load_state != UNIT_LOADED)
-                return 0;
-
-        if (!socket_needs_mount(s, m->where))
-                return 0;
-
-        if ((r = unit_add_two_dependencies(UNIT(s), UNIT_AFTER, UNIT_REQUIRES, UNIT(m), true)) < 0)
-                return r;
-
-        return 0;
-}
-
-static int socket_add_mount_links(Socket *s) {
-        Unit *other;
-        int r;
-
-        assert(s);
-
-        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;
-}
-
-static int socket_add_device_link(Socket *s) {
-        char *t;
-        int r;
-
-        assert(s);
-
-        if (!s->bind_to_device)
-                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;
-}
-
-static int socket_add_default_dependencies(Socket *s) {
-        int r;
-        assert(s);
-
-        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;
-
-                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);
-}
-
-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->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;
-
-                                r = unit_load_related_unit(u, ".service", &x);
-                                if (r < 0)
-                                        return r;
-
-                                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_mount_links(s)) < 0)
-                        return r;
-
-                if ((r = socket_add_device_link(s)) < 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 (UNIT(s)->default_dependencies)
-                        if ((r = socket_add_default_dependencies(s)) < 0)
-                                return r;
-        }
-
-        return socket_verify(s);
-}
-
-static const char* listen_lookup(int family, int type) {
-
-        if (family == AF_NETLINK)
-                return "ListenNetlink";
-
-        if (type == SOCK_STREAM)
-                return "ListenStream";
-        else if (type == SOCK_DGRAM)
-                return "ListenDatagram";
-        else if (type == SOCK_SEQPACKET)
-                return "ListenSequentialPacket";
-
-        assert_not_reached("Unknown socket type");
-        return NULL;
-}
-
-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;
-
-        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)
-                fprintf(f,
-                        "%sControl PID: %lu\n",
-                        prefix, (unsigned long) s->control_pid);
-
-        if (s->bind_to_device)
-                fprintf(f,
-                        "%sBindToDevice: %s\n",
-                        prefix, s->bind_to_device);
-
-        if (s->accept)
-                fprintf(f,
-                        "%sAccepted: %u\n"
-                        "%sNConnections: %u\n"
-                        "%sMaxConnections: %u\n",
-                        prefix, s->n_accepted,
-                        prefix, s->n_connections,
-                        prefix, s->max_connections);
-
-        if (s->priority >= 0)
-                fprintf(f,
-                        "%sPriority: %i\n",
-                        prefix, s->priority);
-
-        if (s->receive_buffer > 0)
-                fprintf(f,
-                        "%sReceiveBuffer: %zu\n",
-                        prefix, s->receive_buffer);
-
-        if (s->send_buffer > 0)
-                fprintf(f,
-                        "%sSendBuffer: %zu\n",
-                        prefix, s->send_buffer);
-
-        if (s->ip_tos >= 0)
-                fprintf(f,
-                        "%sIPTOS: %i\n",
-                        prefix, s->ip_tos);
-
-        if (s->ip_ttl >= 0)
-                fprintf(f,
-                        "%sIPTTL: %i\n",
-                        prefix, s->ip_ttl);
-
-        if (s->pipe_size > 0)
-                fprintf(f,
-                        "%sPipeSize: %zu\n",
-                        prefix, s->pipe_size);
-
-        if (s->mark >= 0)
-                fprintf(f,
-                        "%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) {
-                        const char *t;
-                        int r;
-                        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(socket_address_family(&p->address), p->address.type), t);
-                        free(k);
-                } 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);
-        }
-
-        exec_context_dump(&s->exec_context, f, prefix);
-
-        for (c = 0; c < _SOCKET_EXEC_COMMAND_MAX; c++) {
-                if (!s->exec_command[c])
-                        continue;
-
-                fprintf(f, "%s-> %s:\n",
-                        prefix, socket_exec_command_to_string(c));
-
-                exec_command_dump_list(s->exec_command[c], f, prefix2);
-        }
-
-        free(p2);
-}
-
-static int instance_from_socket(int fd, unsigned nr, char **instance) {
-        socklen_t l;
-        char *r;
-        union {
-                struct sockaddr sa;
-                struct sockaddr_un un;
-                struct sockaddr_in in;
-                struct sockaddr_in6 in6;
-                struct sockaddr_storage storage;
-        } local, remote;
-
-        assert(fd >= 0);
-        assert(instance);
-
-        l = sizeof(local);
-        if (getsockname(fd, &local.sa, &l) < 0)
-                return -errno;
-
-        l = sizeof(remote);
-        if (getpeername(fd, &remote.sa, &l) < 0)
-                return -errno;
-
-        switch (local.sa.sa_family) {
-
-        case AF_INET: {
-                uint32_t
-                        a = ntohl(local.in.sin_addr.s_addr),
-                        b = ntohl(remote.in.sin_addr.s_addr);
-
-                if (asprintf(&r,
-                             "%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,
-                             ntohs(remote.in.sin_port)) < 0)
-                        return -ENOMEM;
-
-                break;
-        }
-
-        case AF_INET6: {
-                static const char ipv4_prefix[] = {
-                        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF
-                };
-
-                if (memcmp(&local.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0 &&
-                    memcmp(&remote.in6.sin6_addr, ipv4_prefix, sizeof(ipv4_prefix)) == 0) {
-                        const uint8_t
-                                *a = local.in6.sin6_addr.s6_addr+12,
-                                *b = remote.in6.sin6_addr.s6_addr+12;
-
-                        if (asprintf(&r,
-                                     "%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],
-                                     ntohs(remote.in6.sin6_port)) < 0)
-                                return -ENOMEM;
-                } else {
-                        char a[INET6_ADDRSTRLEN], b[INET6_ADDRSTRLEN];
-
-                        if (asprintf(&r,
-                                     "%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)),
-                                     ntohs(remote.in6.sin6_port)) < 0)
-                                return -ENOMEM;
-                }
-
-                break;
-        }
-
-        case AF_UNIX: {
-                struct ucred ucred;
-
-                l = sizeof(ucred);
-                if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, &ucred, &l) < 0)
-                        return -errno;
-
-                if (asprintf(&r,
-                             "%u-%lu-%lu",
-                             nr,
-                             (unsigned long) ucred.pid,
-                             (unsigned long) ucred.uid) < 0)
-                        return -ENOMEM;
-
-                break;
-        }
-
-        default:
-                assert_not_reached("Unhandled socket type.");
-        }
-
-        *instance = r;
-        return 0;
-}
-
-static void socket_close_fds(Socket *s) {
-        SocketPort *p;
-
-        assert(s);
-
-        LIST_FOREACH(port, p, s->ports) {
-                if (p->fd < 0)
-                        continue;
-
-                unit_unwatch_fd(UNIT(s), &p->fd_watch);
-                close_nointr_nofail(p->fd);
-
-                /* One little note: we should never delete any sockets
-                 * in the file system here! After all some other
-                 * process we spawned might still have a reference of
-                 * this fd and wants to continue to use it. Therefore
-                 * we delete sockets in the file system before we
-                 * create a new one, not after we stopped using
-                 * one! */
-
-                p->fd = -1;
-        }
-}
-
-static void socket_apply_socket_options(Socket *s, int fd) {
-        assert(s);
-        assert(fd >= 0);
-
-        if (s->keep_alive) {
-                int b = s->keep_alive;
-                if (setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &b, sizeof(b)) < 0)
-                        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;
-
-                /* 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_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)
-                if (setsockopt(fd, SOL_SOCKET, SO_MARK, &s->mark, sizeof(s->mark)) < 0)
-                        log_warning("SO_MARK failed: %m");
-
-        if (s->ip_tos >= 0)
-                if (setsockopt(fd, IPPROTO_IP, IP_TOS, &s->ip_tos, sizeof(s->ip_tos)) < 0)
-                        log_warning("IP_TOS failed: %m");
-
-        if (s->ip_ttl >= 0) {
-                int r, x;
-
-                r = setsockopt(fd, IPPROTO_IP, IP_TTL, &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) {
-        assert(s);
-        assert(fd >= 0);
-
-        if (s->pipe_size > 0)
-                if (fcntl(fd, F_SETPIPE_SZ, s->pipe_size) < 0)
-                        log_warning("F_SETPIPE_SZ: %m");
-}
-
-static int fifo_address_create(
-                const char *path,
-                mode_t directory_mode,
-                mode_t socket_mode,
-                int *_fd) {
-
-        int fd = -1, r = 0;
-        struct stat st;
-        mode_t old_mask;
-
-        assert(path);
-        assert(_fd);
-
-        mkdir_parents(path, directory_mode);
-
-        if ((r = label_fifofile_set(path)) < 0)
-                goto fail;
-
-        /* Enforce the right access mode for the fifo */
-        old_mask = umask(~ socket_mode);
-
-        /* Include the original umask in our mask */
-        umask(~socket_mode | old_mask);
-
-        r = mkfifo(path, socket_mode);
-        umask(old_mask);
-
-        if (r < 0 && errno != EEXIST) {
-                r = -errno;
-                goto fail;
-        }
-
-        if ((fd = open(path, O_RDWR|O_CLOEXEC|O_NOCTTY|O_NONBLOCK|O_NOFOLLOW)) < 0) {
-                r = -errno;
-                goto fail;
-        }
-
-        label_file_clear();
-
-        if (fstat(fd, &st) < 0) {
-                r = -errno;
-                goto fail;
-        }
-
-        if (!S_ISFIFO(st.st_mode) ||
-            (st.st_mode & 0777) != (socket_mode & ~old_mask) ||
-            st.st_uid != getuid() ||
-            st.st_gid != getgid()) {
-
-                r = -EEXIST;
-                goto fail;
-        }
-
-        *_fd = fd;
-        return 0;
-
-fail:
-        label_file_clear();
-
-        if (fd >= 0)
-                close_nointr_nofail(fd);
-
-        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;
-        char *label = NULL;
-        bool know_label = false;
-
-        assert(s);
-
-        LIST_FOREACH(port, p, s->ports) {
-
-                if (p->fd >= 0)
-                        continue;
-
-                if (p->type == SOCKET_SOCKET) {
-
-                        if (!know_label) {
-
-                                if ((r = socket_instantiate_service(s)) < 0)
-                                        return r;
-
-                                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;
-                        }
-
-                        if ((r = socket_address_listen(
-                                             &p->address,
-                                             s->backlog,
-                                             s->bind_ipv6_only,
-                                             s->bind_to_device,
-                                             s->free_bind,
-                                             s->transparent,
-                                             s->directory_mode,
-                                             s->socket_mode,
-                                             label,
-                                             &p->fd)) < 0)
-                                goto rollback;
-
-                        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(
-                                             p->path,
-                                             s->directory_mode,
-                                             s->socket_mode,
-                                             &p->fd)) < 0)
-                                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");
-        }
-
-        label_free(label);
-        return 0;
-
-rollback:
-        socket_close_fds(s);
-        label_free(label);
-        return r;
-}
-
-static void socket_unwatch_fds(Socket *s) {
-        SocketPort *p;
-
-        assert(s);
-
-        LIST_FOREACH(port, p, s->ports) {
-                if (p->fd < 0)
-                        continue;
-
-                unit_unwatch_fd(UNIT(s), &p->fd_watch);
-        }
-}
-
-static int socket_watch_fds(Socket *s) {
-        SocketPort *p;
-        int r;
-
-        assert(s);
-
-        LIST_FOREACH(port, p, s->ports) {
-                if (p->fd < 0)
-                        continue;
-
-                p->fd_watch.socket_accept =
-                        s->accept &&
-                        p->type == SOCKET_SOCKET &&
-                        socket_address_can_accept(&p->address);
-
-                if ((r = unit_watch_fd(UNIT(s), p->fd, EPOLLIN, &p->fd_watch)) < 0)
-                        goto fail;
-        }
-
-        return 0;
-
-fail:
-        socket_unwatch_fds(s);
-        return r;
-}
-
-static void socket_set_state(Socket *s, SocketState state) {
-        SocketState old_state;
-        assert(s);
-
-        old_state = s->state;
-        s->state = state;
-
-        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_FINAL_SIGTERM &&
-            state != SOCKET_FINAL_SIGKILL) {
-                unit_unwatch_timer(UNIT(s), &s->timer_watch);
-                socket_unwatch_control_pid(s);
-                s->control_command = NULL;
-                s->control_command_id = _SOCKET_EXEC_COMMAND_INVALID;
-        }
-
-        if (state != SOCKET_LISTENING)
-                socket_unwatch_fds(s);
-
-        if (state != SOCKET_START_POST &&
-            state != SOCKET_LISTENING &&
-            state != SOCKET_RUNNING &&
-            state != SOCKET_STOP_PRE &&
-            state != SOCKET_STOP_PRE_SIGTERM &&
-            state != SOCKET_STOP_PRE_SIGKILL)
-                socket_close_fds(s);
-
-        if (state != old_state)
-                log_debug("%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);
-}
-
-static int socket_coldplug(Unit *u) {
-        Socket *s = SOCKET(u);
-        int r;
-
-        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->control_pid <= 0)
-                                return -EBADMSG;
-
-                        if ((r = unit_watch_pid(UNIT(s), s->control_pid)) < 0)
-                                return r;
-
-                        if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 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)
-                        if ((r = socket_open_fds(s)) < 0)
-                                return r;
-
-                if (s->deserialized_state == SOCKET_LISTENING)
-                        if ((r = socket_watch_fds(s)) < 0)
-                                return r;
-
-                socket_set_state(s, s->deserialized_state);
-        }
-
-        return 0;
-}
-
-static int socket_spawn(Socket *s, ExecCommand *c, pid_t *_pid) {
-        pid_t pid;
-        int r;
-        char **argv;
-
-        assert(s);
-        assert(c);
-        assert(_pid);
-
-        if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
-                goto fail;
-
-        if (!(argv = unit_full_printf_strv(UNIT(s), c->argv))) {
-                r = -ENOMEM;
-                goto fail;
-        }
-
-        r = exec_spawn(c,
-                       argv,
-                       &s->exec_context,
-                       NULL, 0,
-                       UNIT(s)->manager->environment,
-                       true,
-                       true,
-                       true,
-                       UNIT(s)->manager->confirm_spawn,
-                       UNIT(s)->cgroup_bondings,
-                       UNIT(s)->cgroup_attributes,
-                       &pid);
-
-        strv_free(argv);
-        if (r < 0)
-                goto fail;
-
-        if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
-                /* FIXME: we need to do something here */
-                goto fail;
-
-        *_pid = pid;
-
-        return 0;
-
-fail:
-        unit_unwatch_timer(UNIT(s), &s->timer_watch);
-
-        return r;
-}
-
-static void socket_enter_dead(Socket *s, SocketResult f) {
-        assert(s);
-
-        if (f != SOCKET_SUCCESS)
-                s->result = f;
-
-        socket_set_state(s, s->result != SOCKET_SUCCESS ? SOCKET_FAILED : SOCKET_DEAD);
-}
-
-static void socket_enter_signal(Socket *s, SocketState state, SocketResult f);
-
-static void socket_enter_stop_post(Socket *s, SocketResult f) {
-        int r;
-        assert(s);
-
-        if (f != SOCKET_SUCCESS)
-                s->result = f;
-
-        socket_unwatch_control_pid(s);
-
-        s->control_command_id = SOCKET_EXEC_STOP_POST;
-
-        if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_POST])) {
-                if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
-                        goto fail;
-
-                socket_set_state(s, SOCKET_STOP_POST);
-        } else
-                socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_SUCCESS);
-
-        return;
-
-fail:
-        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, SocketResult f) {
-        int r;
-        Set *pid_set = NULL;
-        bool wait_for_exit = false;
-
-        assert(s);
-
-        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 (s->control_pid > 0) {
-                        if (kill_and_sigcont(s->control_pid, sig) < 0 && errno != ESRCH)
-
-                                log_warning("Failed to kill control process %li: %m", (long) s->control_pid);
-                        else
-                                wait_for_exit = true;
-                }
-
-                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(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)
-                                wait_for_exit = true;
-
-                        set_free(pid_set);
-                        pid_set = NULL;
-                }
-        }
-
-        if (wait_for_exit) {
-                if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
-                        goto fail;
-
-                socket_set_state(s, state);
-        } else if (state == SOCKET_STOP_PRE_SIGTERM || state == SOCKET_STOP_PRE_SIGKILL)
-                socket_enter_stop_post(s, SOCKET_SUCCESS);
-        else
-                socket_enter_dead(s, SOCKET_SUCCESS);
-
-        return;
-
-fail:
-        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, SOCKET_FAILURE_RESOURCES);
-        else
-                socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
-
-        if (pid_set)
-                set_free(pid_set);
-}
-
-static void socket_enter_stop_pre(Socket *s, SocketResult f) {
-        int r;
-        assert(s);
-
-        if (f != SOCKET_SUCCESS)
-                s->result = f;
-
-        socket_unwatch_control_pid(s);
-
-        s->control_command_id = SOCKET_EXEC_STOP_PRE;
-
-        if ((s->control_command = s->exec_command[SOCKET_EXEC_STOP_PRE])) {
-                if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
-                        goto fail;
-
-                socket_set_state(s, SOCKET_STOP_PRE);
-        } else
-                socket_enter_stop_post(s, SOCKET_SUCCESS);
-
-        return;
-
-fail:
-        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);
-
-        r = socket_watch_fds(s);
-        if (r < 0) {
-                log_warning("%s failed to watch sockets: %s", UNIT(s)->id, strerror(-r));
-                goto fail;
-        }
-
-        socket_set_state(s, SOCKET_LISTENING);
-        return;
-
-fail:
-        socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
-}
-
-static void socket_enter_start_post(Socket *s) {
-        int r;
-        assert(s);
-
-        r = socket_open_fds(s);
-        if (r < 0) {
-                log_warning("%s failed to listen on sockets: %s", UNIT(s)->id, strerror(-r));
-                goto fail;
-        }
-
-        socket_unwatch_control_pid(s);
-
-        s->control_command_id = SOCKET_EXEC_START_POST;
-
-        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("%s failed to run 'start-post' task: %s", UNIT(s)->id, strerror(-r));
-                        goto fail;
-                }
-
-                socket_set_state(s, SOCKET_START_POST);
-        } else
-                socket_enter_listening(s);
-
-        return;
-
-fail:
-        socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
-}
-
-static void socket_enter_start_pre(Socket *s) {
-        int r;
-        assert(s);
-
-        socket_unwatch_control_pid(s);
-
-        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)
-                        goto fail;
-
-                socket_set_state(s, SOCKET_START_PRE);
-        } else
-                socket_enter_start_post(s);
-
-        return;
-
-fail:
-        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) {
-        int r;
-        DBusError error;
-
-        assert(s);
-        dbus_error_init(&error);
-
-        /* 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.", UNIT(s)->id);
-
-                if (cfd >= 0)
-                        close_nointr_nofail(cfd);
-                else  {
-                        /* Flush all sockets by closing and reopening them */
-                        socket_close_fds(s);
-
-                        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);
-                        }
-                }
-
-                return;
-        }
-
-        if (cfd < 0) {
-                Iterator i;
-                Unit *u;
-                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_pending_active(u)) {
-                                pending = true;
-                                break;
-                        }
-
-                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 {
-                char *prefix, *instance = NULL, *name;
-                Service *service;
-
-                if (s->n_connections >= s->max_connections) {
-                        log_warning("Too many incoming connections (%u)", s->n_connections);
-                        close_nointr_nofail(cfd);
-                        return;
-                }
-
-                r = socket_instantiate_service(s);
-                if (r < 0)
-                        goto fail;
-
-                r = instance_from_socket(cfd, s->n_accepted, &instance);
-                if (r < 0) {
-                        if (r != -ENOTCONN)
-                                goto fail;
-
-                        /* 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;
-                }
-
-                name = unit_name_build(prefix, instance, ".service");
-                free(prefix);
-                free(instance);
-
-                if (!name) {
-                        r = -ENOMEM;
-                        goto fail;
-                }
-
-                r = unit_add_name(UNIT_DEREF(s->service), name);
-                if (r < 0) {
-                        free(name);
-                        goto fail;
-                }
-
-                service = SERVICE(UNIT_DEREF(s->service));
-                unit_ref_unset(&s->service);
-                s->n_accepted ++;
-
-                UNIT(service)->no_gc = false;
-
-                unit_choose_id(UNIT(service), name);
-                free(name);
-
-                r = service_set_socket_fd(service, cfd, s);
-                if (r < 0)
-                        goto fail;
-
-                cfd = -1;
-                s->n_connections ++;
-
-                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 */
-                unit_add_to_dbus_queue(UNIT(s));
-        }
-
-        return;
-
-fail:
-        log_warning("%s failed to queue socket startup job: %s", UNIT(s)->id, bus_error(&error, r));
-        socket_enter_stop_pre(s, SOCKET_FAILURE_RESOURCES);
-
-        if (cfd >= 0)
-                close_nointr_nofail(cfd);
-
-        dbus_error_free(&error);
-}
-
-static void socket_run_next(Socket *s) {
-        int r;
-
-        assert(s);
-        assert(s->control_command);
-        assert(s->control_command->command_next);
-
-        socket_unwatch_control_pid(s);
-
-        s->control_command = s->control_command->command_next;
-
-        if ((r = socket_spawn(s, s->control_command, &s->control_pid)) < 0)
-                goto fail;
-
-        return;
-
-fail:
-        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, SOCKET_FAILURE_RESOURCES);
-        else if (s->state == SOCKET_STOP_POST)
-                socket_enter_dead(s, SOCKET_FAILURE_RESOURCES);
-        else
-                socket_enter_signal(s, SOCKET_FINAL_SIGTERM, SOCKET_FAILURE_RESOURCES);
-}
-
-static int socket_start(Unit *u) {
-        Socket *s = SOCKET(u);
-
-        assert(s);
-
-        /* We cannot fulfill this request right now, try again later
-         * please! */
-        if (s->state == SOCKET_STOP_PRE ||
-            s->state == SOCKET_STOP_PRE_SIGKILL ||
-            s->state == SOCKET_STOP_PRE_SIGTERM ||
-            s->state == SOCKET_STOP_POST ||
-            s->state == SOCKET_FINAL_SIGTERM ||
-            s->state == SOCKET_FINAL_SIGKILL)
-                return -EAGAIN;
-
-        if (s->state == SOCKET_START_PRE ||
-            s->state == SOCKET_START_POST)
-                return 0;
-
-        /* Cannot run this without the service being around */
-        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 (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 (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_FAILED);
-
-        s->result = SOCKET_SUCCESS;
-        socket_enter_start_pre(s);
-        return 0;
-}
-
-static int socket_stop(Unit *u) {
-        Socket *s = SOCKET(u);
-
-        assert(s);
-
-        /* 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_FINAL_SIGTERM ||
-            s->state == SOCKET_FINAL_SIGKILL)
-                return 0;
-
-        /* If there's already something running we go directly into
-         * kill mode. */
-        if (s->state == SOCKET_START_PRE ||
-            s->state == SOCKET_START_POST) {
-                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, SOCKET_SUCCESS);
-        return 0;
-}
-
-static int socket_serialize(Unit *u, FILE *f, FDSet *fds) {
-        Socket *s = SOCKET(u);
-        SocketPort *p;
-        int r;
-
-        assert(u);
-        assert(f);
-        assert(fds);
-
-        unit_serialize_item(u, f, "state", socket_state_to_string(s->state));
-        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)
-                unit_serialize_item_format(u, f, "control-pid", "%lu", (unsigned long) s->control_pid);
-
-        if (s->control_command_id >= 0)
-                unit_serialize_item(u, f, "control-command", socket_exec_command_to_string(s->control_command_id));
-
-        LIST_FOREACH(port, p, s->ports) {
-                int copy;
-
-                if (p->fd < 0)
-                        continue;
-
-                if ((copy = fdset_put_dup(fds, p->fd)) < 0)
-                        return copy;
-
-                if (p->type == SOCKET_SOCKET) {
-                        char *t;
-
-                        if ((r = socket_address_print(&p->address, &t)) < 0)
-                                return r;
-
-                        if (socket_address_family(&p->address) == AF_NETLINK)
-                                unit_serialize_item_format(u, f, "netlink", "%i %s", copy, t);
-                        else
-                                unit_serialize_item_format(u, f, "socket", "%i %i %s", copy, p->address.type, t);
-                        free(t);
-                } 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);
-                }
-        }
-
-        return 0;
-}
-
-static int socket_deserialize_item(Unit *u, const char *key, const char *value, FDSet *fds) {
-        Socket *s = SOCKET(u);
-
-        assert(u);
-        assert(key);
-        assert(value);
-        assert(fds);
-
-        if (streq(key, "state")) {
-                SocketState state;
-
-                if ((state = socket_state_from_string(value)) < 0)
-                        log_debug("Failed to parse state value %s", value);
-                else
-                        s->deserialized_state = state;
-        } else if (streq(key, "result")) {
-                SocketResult f;
-
-                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;
-
-                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 (parse_pid(value, &pid) < 0)
-                        log_debug("Failed to parse control-pid value %s", value);
-                else
-                        s->control_pid = pid;
-        } else if (streq(key, "control-command")) {
-                SocketExecCommand id;
-
-                if ((id = socket_exec_command_from_string(value)) < 0)
-                        log_debug("Failed to parse exec-command value %s", value);
-                else {
-                        s->control_command_id = id;
-                        s->control_command = s->exec_command[id];
-                }
-        } else if (streq(key, "fifo")) {
-                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 fifo value %s", value);
-                else {
-
-                        LIST_FOREACH(port, p, s->ports)
-                                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 (p->fd >= 0)
-                                        close_nointr_nofail(p->fd);
-                                p->fd = fdset_remove(fds, fd);
-                        }
-                }
-
-        } else if (streq(key, "socket")) {
-                int fd, type, skip = 0;
-                SocketPort *p;
-
-                if (sscanf(value, "%i %i %n", &fd, &type, &skip) < 2 || fd < 0 || type < 0 || !fdset_contains(fds, fd))
-                        log_debug("Failed to parse socket value %s", value);
-                else {
-
-                        LIST_FOREACH(port, p, s->ports)
-                                if (socket_address_is(&p->address, value+skip, type))
-                                        break;
-
-                        if (p) {
-                                if (p->fd >= 0)
-                                        close_nointr_nofail(p->fd);
-                                p->fd = fdset_remove(fds, fd);
-                        }
-                }
-
-        } else if (streq(key, "netlink")) {
-                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 socket value %s", value);
-                else {
-
-                        LIST_FOREACH(port, p, s->ports)
-                                if (socket_address_is_netlink(&p->address, value+skip))
-                                        break;
-
-                        if (p) {
-                                if (p->fd >= 0)
-                                        close_nointr_nofail(p->fd);
-                                p->fd = fdset_remove(fds, fd);
-                        }
-                }
-
-        } else
-                log_debug("Unknown serialization key '%s'", key);
-
-        return 0;
-}
-
-static UnitActiveState socket_active_state(Unit *u) {
-        assert(u);
-
-        return state_translation_table[SOCKET(u)->state];
-}
-
-static const char *socket_sub_state_to_string(Unit *u) {
-        assert(u);
-
-        return socket_state_to_string(SOCKET(u)->state);
-}
-
-static bool socket_check_gc(Unit *u) {
-        Socket *s = SOCKET(u);
-
-        assert(u);
-
-        return s->n_connections > 0;
-}
-
-static void socket_fd_event(Unit *u, int fd, uint32_t events, Watch *w) {
-        Socket *s = SOCKET(u);
-        int cfd = -1;
-
-        assert(s);
-        assert(fd >= 0);
-
-        if (s->state != SOCKET_LISTENING)
-                return;
-
-        log_debug("Incoming traffic on %s", u->id);
-
-        if (events != EPOLLIN) {
-
-                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;
-        }
-
-        if (w->socket_accept) {
-                for (;;) {
-
-                        if ((cfd = accept4(fd, NULL, NULL, SOCK_NONBLOCK)) < 0) {
-
-                                if (errno == EINTR)
-                                        continue;
-
-                                log_error("Failed to accept socket: %m");
-                                goto fail;
-                        }
-
-                        break;
-                }
-
-                socket_apply_socket_options(s, cfd);
-        }
-
-        socket_enter_running(s, cfd);
-        return;
-
-fail:
-        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);
-        SocketResult f;
-
-        assert(s);
-        assert(pid >= 0);
-
-        if (pid != s->control_pid)
-                return;
-
-        s->control_pid = 0;
-
-        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, &s->exec_context, pid, code, status);
-
-                if (s->control_command->ignore)
-                        f = SOCKET_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 &&
-            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->id, socket_state_to_string(s->state));
-
-                switch (s->state) {
-
-                case SOCKET_START_PRE:
-                        if (f == SOCKET_SUCCESS)
-                                socket_enter_start_post(s);
-                        else
-                                socket_enter_signal(s, SOCKET_FINAL_SIGTERM, f);
-                        break;
-
-                case SOCKET_START_POST:
-                        if (f == SOCKET_SUCCESS)
-                                socket_enter_listening(s);
-                        else
-                                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, f);
-                        break;
-
-                case SOCKET_STOP_POST:
-                case SOCKET_FINAL_SIGTERM:
-                case SOCKET_FINAL_SIGKILL:
-                        socket_enter_dead(s, f);
-                        break;
-
-                default:
-                        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) {
-        Socket *s = SOCKET(u);
-
-        assert(s);
-        assert(elapsed == 1);
-        assert(w == &s->timer_watch);
-
-        switch (s->state) {
-
-        case SOCKET_START_PRE:
-                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->id);
-                socket_enter_stop_pre(s, SOCKET_FAILURE_TIMEOUT);
-                break;
-
-        case SOCKET_STOP_PRE:
-                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->id);
-                        socket_enter_signal(s, SOCKET_STOP_PRE_SIGKILL, SOCKET_FAILURE_TIMEOUT);
-                } else {
-                        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->id);
-                socket_enter_stop_post(s, SOCKET_FAILURE_TIMEOUT);
-                break;
-
-        case SOCKET_STOP_POST:
-                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->id);
-                        socket_enter_signal(s, SOCKET_FINAL_SIGKILL, SOCKET_FAILURE_TIMEOUT);
-                } else {
-                        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->id);
-                socket_enter_dead(s, SOCKET_FAILURE_TIMEOUT);
-                break;
-
-        default:
-                assert_not_reached("Timeout at wrong time.");
-        }
-}
-
-int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds) {
-        int *rfds;
-        unsigned rn_fds, k;
-        SocketPort *p;
-
-        assert(s);
-        assert(fds);
-        assert(n_fds);
-
-        /* Called from the service code for requesting our fds */
-
-        rn_fds = 0;
-        LIST_FOREACH(port, p, s->ports)
-                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;
-
-        k = 0;
-        LIST_FOREACH(port, p, s->ports)
-                if (p->fd >= 0)
-                        rfds[k++] = p->fd;
-
-        assert(k == rn_fds);
-
-        *fds = rfds;
-        *n_fds = rn_fds;
-
-        return 0;
-}
-
-void socket_notify_service_dead(Socket *s, bool failed_permanent) {
-        assert(s);
-
-        /* The service is dead. Dang!
-         *
-         * This is strictly for one-instance-for-all-connections
-         * services. */
-
-        if (s->state == SOCKET_RUNNING) {
-                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);
-        }
-}
-
-void socket_connection_unref(Socket *s) {
-        assert(s);
-
-        /* The service is dead. Yay!
-         *
-         * This is strictly for one-instance-per-connection
-         * services. */
-
-        assert(s->n_connections > 0);
-        s->n_connections--;
-
-        log_debug("%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;
-}
-
-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 -ESRCH;
-        }
-
-        if (s->control_pid <= 0 && who == KILL_CONTROL) {
-                dbus_set_error(error, BUS_ERROR_NO_SUCH_PROCESS, "No control process to kill");
-                return -ESRCH;
-        }
-
-        if (who == KILL_CONTROL || who == KILL_ALL)
-                if (s->control_pid > 0)
-                        if (kill(s->control_pid, signo) < 0)
-                                r = -errno;
-
-        if (who == KILL_ALL && 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(UNIT(s)->cgroup_bondings, signo, false, pid_set)) < 0)
-                        if (q != -EAGAIN && q != -ESRCH && q != -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_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_FINAL_SIGTERM] = "final-sigterm",
-        [SOCKET_FINAL_SIGKILL] = "final-sigkill",
-        [SOCKET_FAILED] = "failed"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState);
-
-static const char* const socket_exec_command_table[_SOCKET_EXEC_COMMAND_MAX] = {
-        [SOCKET_EXEC_START_PRE] = "StartPre",
-        [SOCKET_EXEC_START_POST] = "StartPost",
-        [SOCKET_EXEC_STOP_PRE] = "StopPre",
-        [SOCKET_EXEC_STOP_POST] = "StopPost"
-};
-
-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,
-        .load = socket_load,
-
-        .kill = socket_kill,
-
-        .coldplug = socket_coldplug,
-
-        .dump = socket_dump,
-
-        .start = socket_start,
-        .stop = socket_stop,
-
-        .serialize = socket_serialize,
-        .deserialize_item = socket_deserialize_item,
-
-        .active_state = socket_active_state,
-        .sub_state_to_string = socket_sub_state_to_string,
-
-        .check_gc = socket_check_gc,
-
-        .fd_event = socket_fd_event,
-        .sigchld_event = socket_sigchld_event,
-        .timer_event = socket_timer_event,
-
-        .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
-};