+static int config_parse_listen(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int r;
+ SocketPort *p;
+ Socket *s;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ s = (Socket*) data;
+
+ if (!(p = new0(SocketPort, 1)))
+ return -ENOMEM;
+
+ if (streq(lvalue, "ListenFIFO")) {
+ p->type = SOCKET_FIFO;
+
+ if (!(p->path = strdup(rvalue))) {
+ free(p);
+ return -ENOMEM;
+ }
+ } else {
+ p->type = SOCKET_SOCKET;
+
+ if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue);
+ free(p);
+ return r;
+ }
+
+ if (streq(lvalue, "ListenStream"))
+ p->address.type = SOCK_STREAM;
+ else if (streq(lvalue, "ListenDatagram"))
+ p->address.type = SOCK_DGRAM;
+ else {
+ assert(streq(lvalue, "ListenSequentialPacket"));
+ p->address.type = SOCK_SEQPACKET;
+ }
+
+ if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
+ free(p);
+ return -EPROTONOSUPPORT;
+ }
+ }
+
+ p->fd = -1;
+ LIST_PREPEND(SocketPort, port, s->ports, p);
+
+ return 0;
+}
+
+static int config_parse_socket_bind(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int r;
+ Socket *s;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ s = (Socket*) data;
+
+ if ((r = parse_boolean(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue);
+ return r;
+ }
+
+ s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
+
+ return 0;
+}
+
+static int config_parse_nice(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int priority, r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((r = safe_atoi(rvalue, &priority)) < 0) {
+ log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue);
+ return r;
+ }
+
+ if (priority < PRIO_MIN || priority >= PRIO_MAX) {
+ log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue);
+ return -ERANGE;
+ }
+
+ c->nice = priority;
+ c->nice_set = false;
+
+ return 0;
+}
+
+static int config_parse_oom_adjust(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int oa, r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((r = safe_atoi(rvalue, &oa)) < 0) {
+ log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue);
+ return r;
+ }
+
+ if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) {
+ log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue);
+ return -ERANGE;
+ }
+
+ c->oom_adjust = oa;
+ c->oom_adjust_set = true;
+
+ return 0;
+}
+
+static int config_parse_umask(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ mode_t *m = data;
+ long l;
+ char *x = NULL;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ errno = 0;
+ l = strtol(rvalue, &x, 8);
+ if (!x || *x || errno) {
+ log_error("[%s:%u] Failed to parse umask value: %s", filename, line, rvalue);
+ return errno ? -errno : -EINVAL;
+ }
+
+ if (l < 0000 || l > 0777) {
+ log_error("[%s:%u] umask value out of range: %s", filename, line, rvalue);
+ return -ERANGE;
+ }
+
+ *m = (mode_t) l;
+ return 0;
+}
+
+static int config_parse_exec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecCommand **e = data, *ee, *nce = NULL;
+ char **n;
+ char *w;
+ unsigned k;
+ size_t l;
+ char *state;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ k = 0;
+ FOREACH_WORD_QUOTED(w, l, rvalue, state)
+ k++;
+
+ if (!(n = new(char*, k+1)))
+ return -ENOMEM;
+
+ k = 0;
+ FOREACH_WORD_QUOTED(w, l, rvalue, state)
+ if (!(n[k++] = strndup(w, l)))
+ goto fail;
+
+ n[k] = NULL;
+
+ if (!n[0] || !path_is_absolute(n[0])) {
+ log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue);
+ strv_free(n);
+ return -EINVAL;
+ }
+
+ if (!(nce = new0(ExecCommand, 1)))
+ goto fail;
+
+ nce->argv = n;
+ if (!(nce->path = strdup(n[0])))
+ goto fail;
+
+ if (*e) {
+ /* It's kinda important that we keep the order here */
+ LIST_FIND_TAIL(ExecCommand, command, *e, ee);
+ LIST_INSERT_AFTER(ExecCommand, command, *e, ee, nce);
+ } else
+ *e = nce;
+
+ return 0;
+
+fail:
+ for (; k > 0; k--)
+ free(n[k-1]);
+ free(n);
+
+ free(nce);
+
+ return -ENOMEM;
+}
+
+static int config_parse_usec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ usec_t *usec = data;
+ unsigned long long u;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((r = safe_atollu(rvalue, &u)) < 0) {
+ log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue);
+ return r;
+ }
+
+ /* We actually assume the user configures seconds. Later on we
+ * might choose to support suffixes for time values, to
+ * configure bigger or smaller units */
+
+ *usec = u * USEC_PER_SEC;
+
+ return 0;
+}
+
+static int config_parse_service_type(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Service *s = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(rvalue, "forking"))
+ s->type = SERVICE_FORKING;
+ else if (streq(rvalue, "simple"))
+ s->type = SERVICE_SIMPLE;
+ else {
+ log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+
+ return 0;
+}
+
+static int config_parse_service_restart(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Service *s = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(rvalue, "once"))
+ s->restart = SERVICE_ONCE;
+ else if (streq(rvalue, "on-success"))
+ s->type = SERVICE_RESTART_ON_SUCCESS;
+ else if (streq(rvalue, "always"))
+ s->type = SERVICE_RESTART_ALWAYS;
+ else {
+ log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+
+ return 0;
+}
+
+int config_parse_bindtodevice(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s = data;
+ char *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (rvalue[0] && !streq(rvalue, "*")) {
+ if (!(n = strdup(rvalue)))
+ return -ENOMEM;
+ } else
+ n = NULL;
+
+ free(s->bind_to_device);
+ s->bind_to_device = n;
+
+ return 0;
+}
+
+int config_parse_output(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecOutput *o = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (streq(rvalue, "syslog"))
+ *o = EXEC_SYSLOG;
+ else if (streq(rvalue, "null"))
+ *o = EXEC_NULL;
+ else if (streq(rvalue, "syslog"))
+ *o = EXEC_SYSLOG;
+ else if (streq(rvalue, "kernel"))
+ *o = EXEC_KERNEL;
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+
+ return 0;
+}
+
+int config_parse_facility(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ static const char * const table[LOG_NFACILITIES] = {
+ [LOG_FAC(LOG_KERN)] = "kern",
+ [LOG_FAC(LOG_USER)] = "user",
+ [LOG_FAC(LOG_MAIL)] = "mail",
+ [LOG_FAC(LOG_DAEMON)] = "daemon",
+ [LOG_FAC(LOG_AUTH)] = "auth",
+ [LOG_FAC(LOG_SYSLOG)] = "syslog",
+ [LOG_FAC(LOG_LPR)] = "lpr",
+ [LOG_FAC(LOG_NEWS)] = "news",
+ [LOG_FAC(LOG_UUCP)] = "uucp",
+ [LOG_FAC(LOG_CRON)] = "cron",
+ [LOG_FAC(LOG_AUTHPRIV)] = "authpriv",
+ [LOG_FAC(LOG_FTP)] = "ftp",
+ [LOG_FAC(LOG_LOCAL0)] = "local0",
+ [LOG_FAC(LOG_LOCAL1)] = "local1",
+ [LOG_FAC(LOG_LOCAL2)] = "local2",
+ [LOG_FAC(LOG_LOCAL3)] = "local3",
+ [LOG_FAC(LOG_LOCAL4)] = "local4",
+ [LOG_FAC(LOG_LOCAL5)] = "local5",
+ [LOG_FAC(LOG_LOCAL6)] = "local6",
+ [LOG_FAC(LOG_LOCAL7)] = "local7"
+ };
+
+ ExecOutput *o = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ for (i = 0; i < (int) ELEMENTSOF(table); i++)
+ if (streq(rvalue, table[i])) {
+ *o = LOG_MAKEPRI(i, LOG_PRI(*o));
+ break;
+ }
+
+ if (i >= (int) ELEMENTSOF(table)) {
+
+ /* Second try, let's see if this is a number. */
+ if (safe_atoi(rvalue, &i) >= 0 &&
+ i >= 0 &&
+ i < (int) ELEMENTSOF(table))
+ *o = LOG_MAKEPRI(i, LOG_PRI(*o));
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+int config_parse_level(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ static const char * const table[LOG_DEBUG+1] = {
+ [LOG_EMERG] = "emerg",
+ [LOG_ALERT] = "alert",
+ [LOG_CRIT] = "crit",
+ [LOG_ERR] = "err",
+ [LOG_WARNING] = "warning",
+ [LOG_NOTICE] = "notice",
+ [LOG_INFO] = "info",
+ [LOG_DEBUG] = "debug"
+ };
+
+ ExecOutput *o = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ for (i = 0; i < (int) ELEMENTSOF(table); i++)
+ if (streq(rvalue, table[i])) {
+ *o = LOG_MAKEPRI(LOG_FAC(*o), i);
+ break;
+ }
+
+ if (i >= LOG_NFACILITIES) {
+
+ /* Second try, let's see if this is a number. */
+ if (safe_atoi(rvalue, &i) >= 0 &&
+ i >= 0 &&
+ i < (int) ELEMENTSOF(table))
+ *o = LOG_MAKEPRI(LOG_FAC(*o), i);
+ else {
+ log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue);
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+#define FOLLOW_MAX 8
+
+static int open_follow(char **filename, FILE **_f, Set *names, char **_id) {
+ unsigned c = 0;
+ int fd, r;
+ FILE *f;
+ char *id = NULL;
+
+ assert(filename);
+ assert(*filename);
+ assert(_f);
+ assert(names);
+
+ /* This will update the filename pointer if the loaded file is
+ * reached by a symlink. The old string will be freed. */
+
+ for (;;) {
+ char *target, *k, *name;
+
+ if (c++ >= FOLLOW_MAX)
+ return -ELOOP;
+
+ path_kill_slashes(*filename);
+
+ /* Add the file name we are currently looking at to
+ * the names of this unit */
+ name = file_name_from_path(*filename);
+ if (!(id = set_get(names, name))) {
+
+ if (!(id = strdup(name)))
+ return -ENOMEM;
+
+ if ((r = set_put(names, id)) < 0) {
+ free(id);
+ return r;
+ }
+ }
+
+ /* Try to open the file name, but don't if its a symlink */
+ if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
+ break;
+
+ if (errno != ELOOP)
+ return -errno;
+
+ /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
+ if ((r = readlink_malloc(*filename, &target)) < 0)
+ return r;
+
+ k = file_in_same_dir(*filename, target);
+ free(target);
+
+ if (!k)
+ return -ENOMEM;
+
+ free(*filename);
+ *filename = k;
+ }
+
+ if (!(f = fdopen(fd, "r"))) {
+ r = -errno;
+ assert(close_nointr(fd) == 0);
+ return r;
+ }
+
+ *_f = f;
+ *_id = id;
+ return 0;
+}
+
+static int load_from_path(Unit *u, const char *path) {
+
+ static const char* const section_table[_UNIT_TYPE_MAX] = {
+ [UNIT_SERVICE] = "Service",
+ [UNIT_TIMER] = "Timer",
+ [UNIT_SOCKET] = "Socket",
+ [UNIT_TARGET] = "Target",
+ [UNIT_DEVICE] = "Device",
+ [UNIT_MOUNT] = "Mount",
+ [UNIT_AUTOMOUNT] = "Automount",
+ [UNIT_SNAPSHOT] = "Snapshot"
+ };
+
+#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
+ { "Directory", config_parse_path, &(context).directory, section }, \
+ { "User", config_parse_string, &(context).user, section }, \
+ { "Group", config_parse_string, &(context).group, section }, \
+ { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
+ { "Nice", config_parse_nice, &(context), section }, \
+ { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \
+ { "UMask", config_parse_umask, &(context).umask, section }, \
+ { "Environment", config_parse_strv, &(context).environment, section }, \
+ { "Output", config_parse_output, &(context).output, section }, \
+ { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \
+ { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
+ { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }