/*-*- 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 . ***/ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "unit.h" #include "strv.h" #include "conf-parser.h" #include "load-fragment.h" #include "log.h" #include "ioprio.h" #include "securebits.h" #include "missing.h" #include "unit-name.h" #include "bus-errors.h" #ifndef HAVE_SYSV_COMPAT static int config_parse_warn_compat( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue); return 0; } #endif static int config_parse_deps( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { UnitDependency d = PTR_TO_UINT(data); Unit *u = userdata; char *w; size_t l; char *state; assert(filename); assert(lvalue); assert(rvalue); FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t, *k; int r; if (!(t = strndup(w, l))) return -ENOMEM; k = unit_name_printf(u, t); free(t); if (!k) return -ENOMEM; r = unit_add_dependency_by_name(u, d, k, NULL, true); if (r < 0) { log_error("Failed to add dependency on %s, ignoring: %s", k, strerror(-r)); free(k); return 0; } free(k); } return 0; } static int config_parse_names( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Unit *u = userdata; char *w; size_t l; char *state; assert(filename); assert(lvalue); assert(rvalue); assert(data); FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t, *k; int r; if (!(t = strndup(w, l))) return -ENOMEM; k = unit_name_printf(u, t); free(t); if (!k) return -ENOMEM; r = unit_merge_by_name(u, k); if (r < 0) { log_error("Failed to add name %s, ignoring: %s", k, strerror(-r)); free(k); return 0; } free(k); } return 0; } static int config_parse_string_printf( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Unit *u = userdata; char **s = data; char *k; assert(filename); assert(lvalue); assert(rvalue); assert(s); assert(u); if (!(k = unit_full_printf(u, rvalue))) return -ENOMEM; free(*s); if (*k) *s = k; else { free(k); *s = NULL; } return 0; } static int config_parse_path_printf( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Unit *u = userdata; char **s = data; char *k; assert(filename); assert(lvalue); assert(rvalue); assert(s); assert(u); if (!(k = unit_full_printf(u, rvalue))) return -ENOMEM; if (!path_is_absolute(k)) { log_error("[%s:%u] Not an absolute path: %s", filename, line, k); free(k); return -EINVAL; } path_kill_slashes(k); free(*s); *s = k; return 0; } static int config_parse_listen( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { SocketPort *p, *tail; 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; } path_kill_slashes(p->path); } else if (streq(lvalue, "ListenSpecial")) { p->type = SOCKET_SPECIAL; if (!(p->path = strdup(rvalue))) { free(p); return -ENOMEM; } path_kill_slashes(p->path); } else if (streq(lvalue, "ListenMessageQueue")) { p->type = SOCKET_MQUEUE; if (!(p->path = strdup(rvalue))) { free(p); return -ENOMEM; } path_kill_slashes(p->path); } else if (streq(lvalue, "ListenNetlink")) { p->type = SOCKET_SOCKET; if (socket_address_parse_netlink(&p->address, rvalue) < 0) { log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue); free(p); return 0; } } else { p->type = SOCKET_SOCKET; if (socket_address_parse(&p->address, rvalue) < 0) { log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue); free(p); return 0; } 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) { log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue); free(p); return 0; } } p->fd = -1; if (s->ports) { LIST_FIND_TAIL(SocketPort, port, s->ports, tail); LIST_INSERT_AFTER(SocketPort, port, s->ports, tail, p); } else 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, int ltype, const char *rvalue, void *data, void *userdata) { Socket *s; SocketAddressBindIPv6Only b; assert(filename); assert(lvalue); assert(rvalue); assert(data); s = (Socket*) data; if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) { int r; if ((r = parse_boolean(rvalue)) < 0) { log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue); return 0; } s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH; } else s->bind_ipv6_only = b; return 0; } static int config_parse_nice( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int priority; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atoi(rvalue, &priority) < 0) { log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue); return 0; } if (priority < PRIO_MIN || priority >= PRIO_MAX) { log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue); return 0; } c->nice = priority; c->nice_set = true; return 0; } static int config_parse_oom_score_adjust( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int oa; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atoi(rvalue, &oa) < 0) { log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue); return 0; } if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) { log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue); return 0; } c->oom_score_adjust = oa; c->oom_score_adjust_set = true; return 0; } static int config_parse_mode( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, 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 mode value, ignoring: %s", filename, line, rvalue); return 0; } if (l < 0000 || l > 07777) { log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue); return 0; } *m = (mode_t) l; return 0; } static int config_parse_exec( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecCommand **e = data, *nce; char *path, **n; unsigned k; assert(filename); assert(lvalue); assert(rvalue); assert(e); /* We accept an absolute path as first argument, or * alternatively an absolute prefixed with @ to allow * overriding of argv[0]. */ for (;;) { char *w; size_t l; char *state; bool honour_argv0 = false, ignore = false; path = NULL; nce = NULL; n = NULL; rvalue += strspn(rvalue, WHITESPACE); if (rvalue[0] == 0) break; if (rvalue[0] == '-') { ignore = true; rvalue ++; } if (rvalue[0] == '@') { honour_argv0 = true; rvalue ++; } if (*rvalue != '/') { log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue); return 0; } k = 0; FOREACH_WORD_QUOTED(w, l, rvalue, state) { if (strncmp(w, ";", MAX(l, 1U)) == 0) break; k++; } if (!(n = new(char*, k + !honour_argv0))) return -ENOMEM; k = 0; FOREACH_WORD_QUOTED(w, l, rvalue, state) { if (strncmp(w, ";", MAX(l, 1U)) == 0) break; if (honour_argv0 && w == rvalue) { assert(!path); if (!(path = cunescape_length(w, l))) goto fail; } else { if (!(n[k++] = cunescape_length(w, l))) goto fail; } } n[k] = NULL; if (!n[0]) { log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue); strv_free(n); return 0; } if (!path) if (!(path = strdup(n[0]))) goto fail; assert(path_is_absolute(path)); if (!(nce = new0(ExecCommand, 1))) goto fail; nce->argv = n; nce->path = path; nce->ignore = ignore; path_kill_slashes(nce->path); exec_command_append_list(e, nce); rvalue = state; } return 0; fail: n[k] = NULL; strv_free(n); free(path); free(nce); return -ENOMEM; } static int config_parse_usec( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { usec_t *usec = data; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (parse_usec(rvalue, usec) < 0) { log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue); return 0; } return 0; } static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type"); static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier"); static int config_parse_bindtodevice( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, 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; } static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier"); static DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier"); static int config_parse_facility( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *o = data, x; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((x = log_facility_unshifted_from_string(rvalue)) < 0) { log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue); return 0; } *o = (x << 3) | LOG_PRI(*o); return 0; } static int config_parse_level( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *o = data, x; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((x = log_level_from_string(rvalue)) < 0) { log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue); return 0; } *o = (*o & LOG_FACMASK) | x; return 0; } static int config_parse_io_class( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int x; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((x = ioprio_class_from_string(rvalue)) < 0) { log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue); return 0; } c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio)); c->ioprio_set = true; return 0; } static int config_parse_io_priority( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int i; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) { log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue); return 0; } c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i); c->ioprio_set = true; return 0; } static int config_parse_cpu_sched_policy( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int x; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((x = sched_policy_from_string(rvalue)) < 0) { log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue); return 0; } c->cpu_sched_policy = x; c->cpu_sched_set = true; return 0; } static int config_parse_cpu_sched_prio( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; int i; assert(filename); assert(lvalue); assert(rvalue); assert(data); /* On Linux RR/FIFO have the same range */ if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) { log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue); return 0; } c->cpu_sched_priority = i; c->cpu_sched_set = true; return 0; } static int config_parse_cpu_affinity( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; char *w; size_t l; char *state; assert(filename); assert(lvalue); assert(rvalue); assert(data); FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t; int r; unsigned cpu; if (!(t = strndup(w, l))) return -ENOMEM; r = safe_atou(t, &cpu); free(t); if (!(c->cpuset)) if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus))) return -ENOMEM; if (r < 0 || cpu >= c->cpuset_ncpus) { log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue); return 0; } CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset); } return 0; } static int config_parse_capabilities( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; cap_t cap; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (!(cap = cap_from_text(rvalue))) { if (errno == ENOMEM) return -ENOMEM; log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue); return 0; } if (c->capabilities) cap_free(c->capabilities); c->capabilities = cap; return 0; } static int config_parse_secure_bits( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; char *w; size_t l; char *state; assert(filename); assert(lvalue); assert(rvalue); assert(data); FOREACH_WORD_QUOTED(w, l, rvalue, state) { if (first_word(w, "keep-caps")) c->secure_bits |= SECURE_KEEP_CAPS; else if (first_word(w, "keep-caps-locked")) c->secure_bits |= SECURE_KEEP_CAPS_LOCKED; else if (first_word(w, "no-setuid-fixup")) c->secure_bits |= SECURE_NO_SETUID_FIXUP; else if (first_word(w, "no-setuid-fixup-locked")) c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED; else if (first_word(w, "noroot")) c->secure_bits |= SECURE_NOROOT; else if (first_word(w, "noroot-locked")) c->secure_bits |= SECURE_NOROOT_LOCKED; else { log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue); return 0; } } return 0; } static int config_parse_bounding_set( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; char *w; size_t l; char *state; bool invert = false; uint64_t sum = 0; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (rvalue[0] == '~') { invert = true; rvalue++; } /* Note that we store this inverted internally, since the * kernel wants it like this. But we actually expose it * non-inverted everywhere to have a fully normalized * interface. */ FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t; int r; cap_value_t cap; if (!(t = strndup(w, l))) return -ENOMEM; r = cap_from_name(t, &cap); free(t); if (r < 0) { log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue); return 0; } sum |= ((uint64_t) 1ULL) << (uint64_t) cap; } if (invert) c->capability_bounding_set_drop |= sum; else c->capability_bounding_set_drop |= ~sum; return 0; } static int config_parse_timer_slack_nsec( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; unsigned long u; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atolu(rvalue, &u) < 0) { log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue); return 0; } c->timer_slack_nsec = u; return 0; } static int config_parse_limit( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { struct rlimit **rl = data; unsigned long long u; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (streq(rvalue, "infinity")) u = (unsigned long long) RLIM_INFINITY; else if (safe_atollu(rvalue, &u) < 0) { log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue); return 0; } if (!*rl) if (!(*rl = new(struct rlimit, 1))) return -ENOMEM; (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u; return 0; } static int config_parse_cgroup( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Unit *u = userdata; char *w; size_t l; char *state; FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t; int r; if (!(t = cunescape_length(w, l))) return -ENOMEM; r = unit_add_cgroup_from_text(u, t); free(t); if (r < 0) { log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue); return 0; } } return 0; } #ifdef HAVE_SYSV_COMPAT static int config_parse_sysv_priority( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *priority = data; int i; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atoi(rvalue, &i) < 0 || i < 0) { log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue); return 0; } *priority = (int) i; return 0; } #endif static int config_parse_fsck_passno( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *passno = data; int i; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (safe_atoi(rvalue, &i) || i < 0) { log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue); return 0; } *passno = (int) i; return 0; } static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode"); static int config_parse_kill_signal( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *sig = data; int r; assert(filename); assert(lvalue); assert(rvalue); assert(sig); if ((r = signal_from_string_try_harder(rvalue)) <= 0) { log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue); return 0; } *sig = r; return 0; } static int config_parse_mount_flags( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ExecContext *c = data; char *w; size_t l; char *state; unsigned long flags = 0; assert(filename); assert(lvalue); assert(rvalue); assert(data); FOREACH_WORD_QUOTED(w, l, rvalue, state) { if (strncmp(w, "shared", MAX(l, 6U)) == 0) flags |= MS_SHARED; else if (strncmp(w, "slave", MAX(l, 5U)) == 0) flags |= MS_SLAVE; else if (strncmp(w, "private", MAX(l, 7U)) == 0) flags |= MS_PRIVATE; else { log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue); return 0; } } c->mount_flags = flags; return 0; } static int config_parse_timer( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Timer *t = data; usec_t u; TimerValue *v; TimerBase b; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((b = timer_base_from_string(lvalue)) < 0) { log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue); return 0; } if (parse_usec(rvalue, &u) < 0) { log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue); return 0; } if (!(v = new0(TimerValue, 1))) return -ENOMEM; v->base = b; v->value = u; LIST_PREPEND(TimerValue, value, t->values, v); return 0; } static int config_parse_timer_unit( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Timer *t = data; int r; DBusError error; assert(filename); assert(lvalue); assert(rvalue); assert(data); dbus_error_init(&error); if (endswith(rvalue, ".timer")) { log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue); return 0; } if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) { log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); dbus_error_free(&error); return 0; } return 0; } static int config_parse_path_spec( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Path *p = data; PathSpec *s; PathType b; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((b = path_type_from_string(lvalue)) < 0) { log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue); return 0; } if (!path_is_absolute(rvalue)) { log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue); return 0; } if (!(s = new0(PathSpec, 1))) return -ENOMEM; if (!(s->path = strdup(rvalue))) { free(s); return -ENOMEM; } path_kill_slashes(s->path); s->type = b; s->inotify_fd = -1; LIST_PREPEND(PathSpec, spec, p->specs, s); return 0; } static int config_parse_path_unit( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Path *t = data; int r; DBusError error; assert(filename); assert(lvalue); assert(rvalue); assert(data); dbus_error_init(&error); if (endswith(rvalue, ".path")) { log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue); return 0; } if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) { log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); dbus_error_free(&error); return 0; } return 0; } static int config_parse_socket_service( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Socket *s = data; int r; DBusError error; assert(filename); assert(lvalue); assert(rvalue); assert(data); dbus_error_init(&error); if (!endswith(rvalue, ".service")) { log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue); return 0; } if ((r = manager_load_unit(s->meta.manager, rvalue, NULL, &error, (Unit**) &s->service)) < 0) { log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); dbus_error_free(&error); return 0; } return 0; } static int config_parse_service_sockets( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Service *s = data; int r; DBusError error; char *state, *w; size_t l; assert(filename); assert(lvalue); assert(rvalue); assert(data); dbus_error_init(&error); FOREACH_WORD_QUOTED(w, l, rvalue, state) { char *t; Unit *sock; if (!(t = strndup(w, l))) return -ENOMEM; if (!endswith(t, ".socket")) { log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue); free(t); continue; } r = manager_load_unit(s->meta.manager, t, NULL, &error, &sock); free(t); if (r < 0) { log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r)); dbus_error_free(&error); continue; } if ((r = set_ensure_allocated(&s->configured_sockets, trivial_hash_func, trivial_compare_func)) < 0) return r; if ((r = set_put(s->configured_sockets, sock)) < 0) return r; } return 0; } static int config_parse_env_file( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { char ***env = data, **k; assert(filename); assert(lvalue); assert(rvalue); assert(data); if (!path_is_absolute(rvalue[0] == '-' ? rvalue + 1 : rvalue)) { log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, rvalue); return 0; } if (!(k = strv_append(*env, rvalue))) return -ENOMEM; strv_free(*env); *env = k; return 0; } static int config_parse_ip_tos( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { int *ip_tos = data, x; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((x = ip_tos_from_string(rvalue)) < 0) if (safe_atoi(rvalue, &x) < 0) { log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue); return 0; } *ip_tos = x; return 0; } static int config_parse_condition_path( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ConditionType cond = ltype; Unit *u = data; bool trigger, negate; Condition *c; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((trigger = rvalue[0] == '|')) rvalue++; if ((negate = rvalue[0] == '!')) rvalue++; if (!path_is_absolute(rvalue)) { log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue); return 0; } if (!(c = condition_new(cond, rvalue, trigger, negate))) return -ENOMEM; LIST_PREPEND(Condition, conditions, u->meta.conditions, c); return 0; } static int config_parse_condition_string( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { ConditionType cond = ltype; Unit *u = data; bool trigger, negate; Condition *c; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((trigger = rvalue[0] == '|')) rvalue++; if ((negate = rvalue[0] == '!')) rvalue++; if (!(c = condition_new(cond, rvalue, trigger, negate))) return -ENOMEM; LIST_PREPEND(Condition, conditions, u->meta.conditions, c); return 0; } static int config_parse_condition_null( const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) { Unit *u = data; Condition *c; bool trigger, negate; int b; assert(filename); assert(lvalue); assert(rvalue); assert(data); if ((trigger = rvalue[0] == '|')) rvalue++; if ((negate = rvalue[0] == '!')) rvalue++; if ((b = parse_boolean(rvalue)) < 0) { log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue); return 0; } if (!b) negate = !negate; if (!(c = condition_new(CONDITION_NULL, NULL, trigger, negate))) return -ENOMEM; LIST_PREPEND(Condition, conditions, u->meta.conditions, c); return 0; } static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier"); #define FOLLOW_MAX 8 static int open_follow(char **filename, FILE **_f, Set *names, char **_final) { 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, *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, but only if it is a valid * unit name. */ name = file_name_from_path(*filename); if (unit_name_is_valid(name, true)) { id = set_get(names, name); if (!id) { id = strdup(name); if (!id) return -ENOMEM; r = set_put(names, id); if (r < 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_and_make_absolute(*filename, &target)) < 0) return r; free(*filename); *filename = target; } if (!(f = fdopen(fd, "re"))) { r = -errno; close_nointr_nofail(fd); return r; } *_f = f; *_final = id; return 0; } static int merge_by_names(Unit **u, Set *names, const char *id) { char *k; int r; assert(u); assert(*u); assert(names); /* Let's try to add in all symlink names we found */ while ((k = set_steal_first(names))) { /* First try to merge in the other name into our * unit */ if ((r = unit_merge_by_name(*u, k)) < 0) { Unit *other; /* Hmm, we couldn't merge the other unit into * ours? Then let's try it the other way * round */ other = manager_get_unit((*u)->meta.manager, k); free(k); if (other) if ((r = unit_merge(other, *u)) >= 0) { *u = other; return merge_by_names(u, names, NULL); } return r; } if (id == k) unit_choose_id(*u, id); free(k); } return 0; } static void dump_items(FILE *f, const ConfigItem *items) { const ConfigItem *i; const char *prev_section = NULL; bool not_first = false; struct { ConfigParserCallback callback; const char *rvalue; } table[] = { { config_parse_int, "INTEGER" }, { config_parse_unsigned, "UNSIGNED" }, { config_parse_size, "SIZE" }, { config_parse_bool, "BOOLEAN" }, { config_parse_string, "STRING" }, { config_parse_path, "PATH" }, { config_parse_path_printf, "PATH" }, { config_parse_strv, "STRING [...]" }, { config_parse_nice, "NICE" }, { config_parse_oom_score_adjust, "OOMSCOREADJUST" }, { config_parse_io_class, "IOCLASS" }, { config_parse_io_priority, "IOPRIORITY" }, { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" }, { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" }, { config_parse_cpu_affinity, "CPUAFFINITY" }, { config_parse_mode, "MODE" }, { config_parse_env_file, "FILE" }, { config_parse_output, "OUTPUT" }, { config_parse_input, "INPUT" }, { config_parse_facility, "FACILITY" }, { config_parse_level, "LEVEL" }, { config_parse_capabilities, "CAPABILITIES" }, { config_parse_secure_bits, "SECUREBITS" }, { config_parse_bounding_set, "BOUNDINGSET" }, { config_parse_timer_slack_nsec, "TIMERSLACK" }, { config_parse_limit, "LIMIT" }, { config_parse_cgroup, "CGROUP [...]" }, { config_parse_deps, "UNIT [...]" }, { config_parse_names, "UNIT [...]" }, { config_parse_exec, "PATH [ARGUMENT [...]]" }, { config_parse_service_type, "SERVICETYPE" }, { config_parse_service_restart, "SERVICERESTART" }, #ifdef HAVE_SYSV_COMPAT { config_parse_sysv_priority, "SYSVPRIORITY" }, #else { config_parse_warn_compat, "NOTSUPPORTED" }, #endif { config_parse_kill_mode, "KILLMODE" }, { config_parse_kill_signal, "SIGNAL" }, { config_parse_listen, "SOCKET [...]" }, { config_parse_socket_bind, "SOCKETBIND" }, { config_parse_bindtodevice, "NETWORKINTERFACE" }, { config_parse_usec, "SECONDS" }, { config_parse_path_strv, "PATH [...]" }, { config_parse_mount_flags, "MOUNTFLAG [...]" }, { config_parse_string_printf, "STRING" }, { config_parse_timer, "TIMER" }, { config_parse_timer_unit, "NAME" }, { config_parse_path_spec, "PATH" }, { config_parse_path_unit, "UNIT" }, { config_parse_notify_access, "ACCESS" }, { config_parse_ip_tos, "TOS" }, { config_parse_condition_path, "CONDITION" }, { config_parse_condition_string, "CONDITION" }, { config_parse_condition_null, "CONDITION" }, }; assert(f); assert(items); for (i = items; i->lvalue; i++) { unsigned j; const char *rvalue = "OTHER"; if (!streq_ptr(i->section, prev_section)) { if (!not_first) not_first = true; else fputc('\n', f); fprintf(f, "[%s]\n", i->section); prev_section = i->section; } for (j = 0; j < ELEMENTSOF(table); j++) if (i->parse == table[j].callback) { rvalue = table[j].rvalue; break; } fprintf(f, "%s=%s\n", i->lvalue, rvalue); } } 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", [UNIT_SWAP] = "Swap", [UNIT_PATH] = "Path" }; #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \ { "WorkingDirectory", config_parse_path_printf, 0, &(context).working_directory, section }, \ { "RootDirectory", config_parse_path_printf, 0, &(context).root_directory, section }, \ { "User", config_parse_string_printf, 0, &(context).user, section }, \ { "Group", config_parse_string_printf, 0, &(context).group, section }, \ { "SupplementaryGroups", config_parse_strv, 0, &(context).supplementary_groups, section }, \ { "Nice", config_parse_nice, 0, &(context), section }, \ { "OOMScoreAdjust", config_parse_oom_score_adjust,0, &(context), section }, \ { "IOSchedulingClass", config_parse_io_class, 0, &(context), section }, \ { "IOSchedulingPriority", config_parse_io_priority, 0, &(context), section }, \ { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,0, &(context), section }, \ { "CPUSchedulingPriority", config_parse_cpu_sched_prio, 0, &(context), section }, \ { "CPUSchedulingResetOnFork", config_parse_bool, 0, &(context).cpu_sched_reset_on_fork, section }, \ { "CPUAffinity", config_parse_cpu_affinity, 0, &(context), section }, \ { "UMask", config_parse_mode, 0, &(context).umask, section }, \ { "Environment", config_parse_strv, 0, &(context).environment, section }, \ { "EnvironmentFile", config_parse_env_file, 0, &(context).environment_files, section }, \ { "StandardInput", config_parse_input, 0, &(context).std_input, section }, \ { "StandardOutput", config_parse_output, 0, &(context).std_output, section }, \ { "StandardError", config_parse_output, 0, &(context).std_error, section }, \ { "TTYPath", config_parse_path_printf, 0, &(context).tty_path, section }, \ { "TTYReset", config_parse_bool, 0, &(context).tty_reset, section }, \ { "TTYVHangup", config_parse_bool, 0, &(context).tty_vhangup, section }, \ { "TTYVTDisallocate", config_parse_bool, 0, &(context).tty_vt_disallocate, section }, \ { "SyslogIdentifier", config_parse_string_printf, 0, &(context).syslog_identifier, section }, \ { "SyslogFacility", config_parse_facility, 0, &(context).syslog_priority, section }, \ { "SyslogLevel", config_parse_level, 0, &(context).syslog_priority, section }, \ { "SyslogLevelPrefix", config_parse_bool, 0, &(context).syslog_level_prefix, section }, \ { "Capabilities", config_parse_capabilities, 0, &(context), section }, \ { "SecureBits", config_parse_secure_bits, 0, &(context), section }, \ { "CapabilityBoundingSet", config_parse_bounding_set, 0, &(context), section }, \ { "TimerSlackNSec", config_parse_timer_slack_nsec,0, &(context), section }, \ { "LimitCPU", config_parse_limit, 0, &(context).rlimit[RLIMIT_CPU], section }, \ { "LimitFSIZE", config_parse_limit, 0, &(context).rlimit[RLIMIT_FSIZE], section }, \ { "LimitDATA", config_parse_limit, 0, &(context).rlimit[RLIMIT_DATA], section }, \ { "LimitSTACK", config_parse_limit, 0, &(context).rlimit[RLIMIT_STACK], section }, \ { "LimitCORE", config_parse_limit, 0, &(context).rlimit[RLIMIT_CORE], section }, \ { "LimitRSS", config_parse_limit, 0, &(context).rlimit[RLIMIT_RSS], section }, \ { "LimitNOFILE", config_parse_limit, 0, &(context).rlimit[RLIMIT_NOFILE], section }, \ { "LimitAS", config_parse_limit, 0, &(context).rlimit[RLIMIT_AS], section }, \ { "LimitNPROC", config_parse_limit, 0, &(context).rlimit[RLIMIT_NPROC], section }, \ { "LimitMEMLOCK", config_parse_limit, 0, &(context).rlimit[RLIMIT_MEMLOCK], section }, \ { "LimitLOCKS", config_parse_limit, 0, &(context).rlimit[RLIMIT_LOCKS], section }, \ { "LimitSIGPENDING", config_parse_limit, 0, &(context).rlimit[RLIMIT_SIGPENDING], section }, \ { "LimitMSGQUEUE", config_parse_limit, 0, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \ { "LimitNICE", config_parse_limit, 0, &(context).rlimit[RLIMIT_NICE], section }, \ { "LimitRTPRIO", config_parse_limit, 0, &(context).rlimit[RLIMIT_RTPRIO], section }, \ { "LimitRTTIME", config_parse_limit, 0, &(context).rlimit[RLIMIT_RTTIME], section }, \ { "ControlGroup", config_parse_cgroup, 0, u, section }, \ { "ReadWriteDirectories", config_parse_path_strv, 0, &(context).read_write_dirs, section }, \ { "ReadOnlyDirectories", config_parse_path_strv, 0, &(context).read_only_dirs, section }, \ { "InaccessibleDirectories",config_parse_path_strv, 0, &(context).inaccessible_dirs, section }, \ { "PrivateTmp", config_parse_bool, 0, &(context).private_tmp, section }, \ { "MountFlags", config_parse_mount_flags, 0, &(context), section }, \ { "TCPWrapName", config_parse_string_printf, 0, &(context).tcpwrap_name, section }, \ { "PAMName", config_parse_string_printf, 0, &(context).pam_name, section }, \ { "KillMode", config_parse_kill_mode, 0, &(context).kill_mode, section }, \ { "KillSignal", config_parse_kill_signal, 0, &(context).kill_signal, section }, \ { "SendSIGKILL", config_parse_bool, 0, &(context).send_sigkill, section }, \ { "UtmpIdentifier", config_parse_string_printf, 0, &(context).utmp_id, section }, \ { "ControlGroupModify", config_parse_bool, 0, &(context).control_group_modify, section } const ConfigItem items[] = { { "Names", config_parse_names, 0, u, "Unit" }, { "Description", config_parse_string_printf, 0, &u->meta.description, "Unit" }, { "Requires", config_parse_deps, 0, UINT_TO_PTR(UNIT_REQUIRES), "Unit" }, { "RequiresOverridable", config_parse_deps, 0, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" }, { "Requisite", config_parse_deps, 0, UINT_TO_PTR(UNIT_REQUISITE), "Unit" }, { "RequisiteOverridable", config_parse_deps, 0, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" }, { "Wants", config_parse_deps, 0, UINT_TO_PTR(UNIT_WANTS), "Unit" }, { "BindTo", config_parse_deps, 0, UINT_TO_PTR(UNIT_BIND_TO), "Unit" }, { "Conflicts", config_parse_deps, 0, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" }, { "Before", config_parse_deps, 0, UINT_TO_PTR(UNIT_BEFORE), "Unit" }, { "After", config_parse_deps, 0, UINT_TO_PTR(UNIT_AFTER), "Unit" }, { "OnFailure", config_parse_deps, 0, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" }, { "StopWhenUnneeded", config_parse_bool, 0, &u->meta.stop_when_unneeded, "Unit" }, { "RefuseManualStart", config_parse_bool, 0, &u->meta.refuse_manual_start, "Unit" }, { "RefuseManualStop", config_parse_bool, 0, &u->meta.refuse_manual_stop, "Unit" }, { "AllowIsolate", config_parse_bool, 0, &u->meta.allow_isolate, "Unit" }, { "DefaultDependencies", config_parse_bool, 0, &u->meta.default_dependencies, "Unit" }, { "OnFailureIsolate", config_parse_bool, 0, &u->meta.on_failure_isolate, "Unit" }, { "IgnoreOnIsolate", config_parse_bool, 0, &u->meta.ignore_on_isolate, "Unit" }, { "IgnoreOnSnapshot", config_parse_bool, 0, &u->meta.ignore_on_snapshot, "Unit" }, { "JobTimeoutSec", config_parse_usec, 0, &u->meta.job_timeout, "Unit" }, { "ConditionPathExists", config_parse_condition_path, CONDITION_PATH_EXISTS, u, "Unit" }, { "ConditionPathIsDirectory", config_parse_condition_path, CONDITION_PATH_IS_DIRECTORY, u, "Unit" }, { "ConditionDirectoryNotEmpty", config_parse_condition_path, CONDITION_DIRECTORY_NOT_EMPTY, u, "Unit" }, { "ConditionKernelCommandLine", config_parse_condition_string, CONDITION_KERNEL_COMMAND_LINE, u, "Unit" }, { "ConditionVirtualization", config_parse_condition_string, CONDITION_VIRTUALIZATION, u, "Unit" }, { "ConditionSecurity", config_parse_condition_string, CONDITION_SECURITY, u, "Unit" }, { "ConditionNull", config_parse_condition_null, 0, u, "Unit" }, { "PIDFile", config_parse_path_printf, 0, &u->service.pid_file, "Service" }, { "ExecStartPre", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" }, { "ExecStart", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_START, "Service" }, { "ExecStartPost", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" }, { "ExecReload", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" }, { "ExecStop", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_STOP, "Service" }, { "ExecStopPost", config_parse_exec, 0, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" }, { "RestartSec", config_parse_usec, 0, &u->service.restart_usec, "Service" }, { "TimeoutSec", config_parse_usec, 0, &u->service.timeout_usec, "Service" }, { "Type", config_parse_service_type, 0, &u->service.type, "Service" }, { "Restart", config_parse_service_restart, 0, &u->service.restart, "Service" }, { "PermissionsStartOnly", config_parse_bool, 0, &u->service.permissions_start_only, "Service" }, { "RootDirectoryStartOnly", config_parse_bool, 0, &u->service.root_directory_start_only, "Service" }, { "RemainAfterExit", config_parse_bool, 0, &u->service.remain_after_exit, "Service" }, { "GuessMainPID", config_parse_bool, 0, &u->service.guess_main_pid, "Service" }, #ifdef HAVE_SYSV_COMPAT { "SysVStartPriority", config_parse_sysv_priority, 0, &u->service.sysv_start_priority, "Service" }, #else { "SysVStartPriority", config_parse_warn_compat, 0, NULL, "Service" }, #endif { "NonBlocking", config_parse_bool, 0, &u->service.exec_context.non_blocking, "Service" }, { "BusName", config_parse_string_printf, 0, &u->service.bus_name, "Service" }, { "NotifyAccess", config_parse_notify_access, 0, &u->service.notify_access, "Service" }, { "Sockets", config_parse_service_sockets, 0, &u->service, "Service" }, { "FsckPassNo", config_parse_fsck_passno, 0, &u->service.fsck_passno, "Service" }, EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"), { "ListenStream", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenDatagram", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenSequentialPacket", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenFIFO", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenNetlink", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenSpecial", config_parse_listen, 0, &u->socket, "Socket" }, { "ListenMessageQueue", config_parse_listen, 0, &u->socket, "Socket" }, { "BindIPv6Only", config_parse_socket_bind, 0, &u->socket, "Socket" }, { "Backlog", config_parse_unsigned, 0, &u->socket.backlog, "Socket" }, { "BindToDevice", config_parse_bindtodevice, 0, &u->socket, "Socket" }, { "ExecStartPre", config_parse_exec, 0, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" }, { "ExecStartPost", config_parse_exec, 0, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" }, { "ExecStopPre", config_parse_exec, 0, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" }, { "ExecStopPost", config_parse_exec, 0, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" }, { "TimeoutSec", config_parse_usec, 0, &u->socket.timeout_usec, "Socket" }, { "DirectoryMode", config_parse_mode, 0, &u->socket.directory_mode, "Socket" }, { "SocketMode", config_parse_mode, 0, &u->socket.socket_mode, "Socket" }, { "Accept", config_parse_bool, 0, &u->socket.accept, "Socket" }, { "MaxConnections", config_parse_unsigned, 0, &u->socket.max_connections, "Socket" }, { "KeepAlive", config_parse_bool, 0, &u->socket.keep_alive, "Socket" }, { "Priority", config_parse_int, 0, &u->socket.priority, "Socket" }, { "ReceiveBuffer", config_parse_size, 0, &u->socket.receive_buffer, "Socket" }, { "SendBuffer", config_parse_size, 0, &u->socket.send_buffer, "Socket" }, { "IPTOS", config_parse_ip_tos, 0, &u->socket.ip_tos, "Socket" }, { "IPTTL", config_parse_int, 0, &u->socket.ip_ttl, "Socket" }, { "Mark", config_parse_int, 0, &u->socket.mark, "Socket" }, { "PipeSize", config_parse_size, 0, &u->socket.pipe_size, "Socket" }, { "FreeBind", config_parse_bool, 0, &u->socket.free_bind, "Socket" }, { "Transparent", config_parse_bool, 0, &u->socket.transparent, "Socket" }, { "Broadcast", config_parse_bool, 0, &u->socket.broadcast, "Socket" }, { "TCPCongestion", config_parse_string, 0, &u->socket.tcp_congestion, "Socket" }, { "MessageQueueMaxMessages", config_parse_long, 0, &u->socket.mq_maxmsg, "Socket" }, { "MessageQueueMessageSize", config_parse_long, 0, &u->socket.mq_msgsize, "Socket" }, { "Service", config_parse_socket_service, 0, &u->socket, "Socket" }, EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"), { "What", config_parse_string, 0, &u->mount.parameters_fragment.what, "Mount" }, { "Where", config_parse_path, 0, &u->mount.where, "Mount" }, { "Options", config_parse_string, 0, &u->mount.parameters_fragment.options, "Mount" }, { "Type", config_parse_string, 0, &u->mount.parameters_fragment.fstype, "Mount" }, { "TimeoutSec", config_parse_usec, 0, &u->mount.timeout_usec, "Mount" }, { "DirectoryMode", config_parse_mode, 0, &u->mount.directory_mode, "Mount" }, EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"), { "Where", config_parse_path, 0, &u->automount.where, "Automount" }, { "DirectoryMode", config_parse_mode, 0, &u->automount.directory_mode, "Automount" }, { "What", config_parse_path, 0, &u->swap.parameters_fragment.what, "Swap" }, { "Priority", config_parse_int, 0, &u->swap.parameters_fragment.priority, "Swap" }, { "TimeoutSec", config_parse_usec, 0, &u->swap.timeout_usec, "Swap" }, EXEC_CONTEXT_CONFIG_ITEMS(u->swap.exec_context, "Swap"), { "OnActiveSec", config_parse_timer, 0, &u->timer, "Timer" }, { "OnBootSec", config_parse_timer, 0, &u->timer, "Timer" }, { "OnStartupSec", config_parse_timer, 0, &u->timer, "Timer" }, { "OnUnitActiveSec", config_parse_timer, 0, &u->timer, "Timer" }, { "OnUnitInactiveSec", config_parse_timer, 0, &u->timer, "Timer" }, { "Unit", config_parse_timer_unit, 0, &u->timer, "Timer" }, { "PathExists", config_parse_path_spec, 0, &u->path, "Path" }, { "PathChanged", config_parse_path_spec, 0, &u->path, "Path" }, { "DirectoryNotEmpty", config_parse_path_spec, 0, &u->path, "Path" }, { "Unit", config_parse_path_unit, 0, &u->path, "Path" }, { "MakeDirectory", config_parse_bool, 0, &u->path.make_directory, "Path" }, { "DirectoryMode", config_parse_mode, 0, &u->path.directory_mode, "Path" }, /* The [Install] section is ignored here. */ { "Alias", NULL, 0, NULL, "Install" }, { "WantedBy", NULL, 0, NULL, "Install" }, { "Also", NULL, 0, NULL, "Install" }, { NULL, NULL, 0, NULL, NULL } }; #undef EXEC_CONTEXT_CONFIG_ITEMS const char *sections[4]; int r; Set *symlink_names; FILE *f = NULL; char *filename = NULL, *id = NULL; Unit *merged; struct stat st; if (!u) { /* Dirty dirty hack. */ dump_items((FILE*) path, items); return 0; } assert(u); assert(path); sections[0] = "Unit"; sections[1] = section_table[u->meta.type]; sections[2] = "Install"; sections[3] = NULL; if (!(symlink_names = set_new(string_hash_func, string_compare_func))) return -ENOMEM; if (path_is_absolute(path)) { if (!(filename = strdup(path))) { r = -ENOMEM; goto finish; } if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { free(filename); filename = NULL; if (r != -ENOENT) goto finish; } } else { char **p; STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) { /* Instead of opening the path right away, we manually * follow all symlinks and add their name to our unit * name set while doing so */ if (!(filename = path_make_absolute(path, *p))) { r = -ENOMEM; goto finish; } if (u->meta.manager->unit_path_cache && !set_get(u->meta.manager->unit_path_cache, filename)) r = -ENOENT; else r = open_follow(&filename, &f, symlink_names, &id); if (r < 0) { char *sn; free(filename); filename = NULL; if (r != -ENOENT) goto finish; /* Empty the symlink names for the next run */ while ((sn = set_steal_first(symlink_names))) free(sn); continue; } break; } } if (!filename) { /* Hmm, no suitable file found? */ r = 0; goto finish; } merged = u; if ((r = merge_by_names(&merged, symlink_names, id)) < 0) goto finish; if (merged != u) { u->meta.load_state = UNIT_MERGED; r = 0; goto finish; } zero(st); if (fstat(fileno(f), &st) < 0) { r = -errno; goto finish; } if (null_or_empty(&st)) u->meta.load_state = UNIT_MASKED; else { /* Now, parse the file contents */ if ((r = config_parse(filename, f, sections, items, false, u)) < 0) goto finish; u->meta.load_state = UNIT_LOADED; } free(u->meta.fragment_path); u->meta.fragment_path = filename; filename = NULL; u->meta.fragment_mtime = timespec_load(&st.st_mtim); r = 0; finish: set_free_free(symlink_names); free(filename); if (f) fclose(f); return r; } int unit_load_fragment(Unit *u) { int r; Iterator i; const char *t; assert(u); assert(u->meta.load_state == UNIT_STUB); assert(u->meta.id); /* First, try to find the unit under its id. We always look * for unit files in the default directories, to make it easy * to override things by placing things in /etc/systemd/system */ if ((r = load_from_path(u, u->meta.id)) < 0) return r; /* Try to find an alias we can load this with */ if (u->meta.load_state == UNIT_STUB) SET_FOREACH(t, u->meta.names, i) { if (t == u->meta.id) continue; if ((r = load_from_path(u, t)) < 0) return r; if (u->meta.load_state != UNIT_STUB) break; } /* And now, try looking for it under the suggested (originally linked) path */ if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path) { if ((r = load_from_path(u, u->meta.fragment_path)) < 0) return r; if (u->meta.load_state == UNIT_STUB) { /* Hmm, this didn't work? Then let's get rid * of the fragment path stored for us, so that * we don't point to an invalid location. */ free(u->meta.fragment_path); u->meta.fragment_path = NULL; } } /* Look for a template */ if (u->meta.load_state == UNIT_STUB && u->meta.instance) { char *k; if (!(k = unit_name_template(u->meta.id))) return -ENOMEM; r = load_from_path(u, k); free(k); if (r < 0) return r; if (u->meta.load_state == UNIT_STUB) SET_FOREACH(t, u->meta.names, i) { if (t == u->meta.id) continue; if (!(k = unit_name_template(t))) return -ENOMEM; r = load_from_path(u, k); free(k); if (r < 0) return r; if (u->meta.load_state != UNIT_STUB) break; } } return 0; } void unit_dump_config_items(FILE *f) { /* OK, this wins a prize for extreme ugliness. */ load_from_path(NULL, (const void*) f); }