diff options
Diffstat (limited to 'src/core/load-fragment.c')
| -rw-r--r-- | src/core/load-fragment.c | 4828 |
1 files changed, 4828 insertions, 0 deletions
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c new file mode 100644 index 0000000..44f00a3 --- /dev/null +++ b/src/core/load-fragment.c @@ -0,0 +1,4828 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ +/*** + Copyright © 2012 Holger Hans Peter Freyther +***/ + +#include <errno.h> +#include <fcntl.h> +#include <linux/fs.h> +#include <linux/oom.h> +#if HAVE_SECCOMP +#include <seccomp.h> +#endif +#include <sched.h> +#include <string.h> +#include <sys/resource.h> +#include <sys/stat.h> + +#include "af-list.h" +#include "alloc-util.h" +#include "all-units.h" +#include "bus-error.h" +#include "bus-internal.h" +#include "bus-util.h" +#include "cap-list.h" +#include "capability-util.h" +#include "cgroup.h" +#include "conf-parser.h" +#include "cpu-set-util.h" +#include "env-util.h" +#include "errno-list.h" +#include "escape.h" +#include "fd-util.h" +#include "fs-util.h" +#include "hexdecoct.h" +#include "io-util.h" +#include "ioprio.h" +#include "ip-protocol-list.h" +#include "journal-util.h" +#include "load-fragment.h" +#include "log.h" +#include "missing.h" +#include "mountpoint-util.h" +#include "parse-util.h" +#include "path-util.h" +#include "process-util.h" +#if HAVE_SECCOMP +#include "seccomp-util.h" +#endif +#include "securebits-util.h" +#include "signal-util.h" +#include "stat-util.h" +#include "string-util.h" +#include "strv.h" +#include "unit-name.h" +#include "unit-printf.h" +#include "user-util.h" +#include "web-util.h" + +static int parse_socket_protocol(const char *s) { + int r; + + r = parse_ip_protocol(s); + if (r < 0) + return r; + if (!IN_SET(r, IPPROTO_UDPLITE, IPPROTO_SCTP)) + return -EPROTONOSUPPORT; + + return r; +} + +DEFINE_CONFIG_PARSE(config_parse_socket_protocol, parse_socket_protocol, "Failed to parse socket protocol"); +DEFINE_CONFIG_PARSE(config_parse_exec_secure_bits, secure_bits_from_string, "Failed to parse secure bits"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_collect_mode, collect_mode, CollectMode, "Failed to parse garbage collection mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode, "Failed to parse keyring mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode, "Failed to parse utmp mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_home, protect_home, ProtectHome, "Failed to parse protect home value"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSystem, "Failed to parse protect system value"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_runtime_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse runtime directory preserve mode"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier"); +DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value"); +DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value"); +DEFINE_CONFIG_PARSE_PTR(config_parse_blockio_weight, cg_blkio_weight_parse, uint64_t, "Invalid block IO weight"); +DEFINE_CONFIG_PARSE_PTR(config_parse_cg_weight, cg_weight_parse, uint64_t, "Invalid weight"); +DEFINE_CONFIG_PARSE_PTR(config_parse_cpu_shares, cg_cpu_shares_parse, uint64_t, "Invalid CPU shares"); +DEFINE_CONFIG_PARSE_PTR(config_parse_exec_mount_flags, mount_propagation_flags_from_string, unsigned long, "Failed to parse mount flag"); + +int config_parse_unit_deps( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + UnitDependency d = ltype; + Unit *u = userdata; + const char *p; + + assert(filename); + assert(lvalue); + assert(rvalue); + + p = rvalue; + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + int r; + + r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); + break; + } + + r = unit_name_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word); + continue; + } + + r = unit_add_dependency_by_name(u, d, k, true, UNIT_DEPENDENCY_FILE); + if (r < 0) + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k); + } + + return 0; +} + +int config_parse_obsolete_unit_deps( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Unit dependency type %s= is obsolete, replacing by %s=, please update your unit file", lvalue, unit_dependency_to_string(ltype)); + + return config_parse_unit_deps(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata); +} + +int config_parse_unit_string_printf( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *k = NULL; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata); +} + +int config_parse_unit_strv_printf( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = userdata; + _cleanup_free_ char *k = NULL; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata); +} + +int config_parse_unit_path_printf( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *k = NULL; + Unit *u = userdata; + int r; + bool fatal = ltype; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + /* Let's not bother with anything that is too long */ + if (strlen(rvalue) >= PATH_MAX) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "%s value too long%s.", + lvalue, fatal ? "" : ", ignoring"); + return fatal ? -ENAMETOOLONG : 0; + } + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s'%s: %m", + rvalue, fatal ? "" : ", ignoring"); + return fatal ? -ENOEXEC : 0; + } + + return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata); +} + +int config_parse_unit_path_strv_printf( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + char ***x = data; + Unit *u = userdata; + int r; + const char *p; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + *x = strv_free(*x); + return 0; + } + + for (p = rvalue;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", word); + return 0; + } + + r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return 0; + + r = strv_push(x, k); + if (r < 0) + return log_oom(); + k = NULL; + } +} + +int config_parse_socket_listen(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ SocketPort *p = NULL; + SocketPort *tail; + Socket *s; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + s = SOCKET(data); + + if (isempty(rvalue)) { + /* An empty assignment removes all ports */ + socket_free_ports(s); + return 0; + } + + p = new0(SocketPort, 1); + if (!p) + return log_oom(); + + if (ltype != SOCKET_SOCKET) { + _cleanup_free_ char *k = NULL; + + r = unit_full_printf(UNIT(s), rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return 0; + + free_and_replace(p->path, k); + p->type = ltype; + + } else if (streq(lvalue, "ListenNetlink")) { + _cleanup_free_ char *k = NULL; + + r = unit_full_printf(UNIT(s), rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + r = socket_address_parse_netlink(&p->address, k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k); + return 0; + } + + p->type = SOCKET_SOCKET; + + } else { + _cleanup_free_ char *k = NULL; + + r = unit_full_printf(UNIT(s), rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + r = socket_address_parse_and_warn(&p->address, k); + if (r < 0) { + if (r != -EAFNOSUPPORT) + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k); + 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_syntax(unit, LOG_ERR, filename, line, 0, "Address family not supported, ignoring: %s", rvalue); + return 0; + } + + p->type = SOCKET_SOCKET; + } + + p->fd = -1; + p->auxiliary_fds = NULL; + p->n_auxiliary_fds = 0; + p->socket = s; + + LIST_FIND_TAIL(port, s->ports, tail); + LIST_INSERT_AFTER(port, s->ports, tail, p); + + p = NULL; + + return 0; +} + +int config_parse_exec_nice( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + int priority, r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->nice_set = false; + return 0; + } + + r = parse_nice(rvalue, &priority); + if (r < 0) { + if (r == -ERANGE) + log_syntax(unit, LOG_ERR, filename, line, r, "Nice priority out of range, ignoring: %s", rvalue); + else + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse nice priority '%s', ignoring: %m", rvalue); + return 0; + } + + c->nice = priority; + c->nice_set = true; + + return 0; +} + +int config_parse_exec_oom_score_adjust( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + int oa, r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->oom_score_adjust_set = false; + return 0; + } + + r = parse_oom_score_adjust(rvalue, &oa); + if (r < 0) { + if (r == -ERANGE) + log_syntax(unit, LOG_ERR, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue); + else + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue); + return 0; + } + + c->oom_score_adjust = oa; + c->oom_score_adjust_set = true; + + return 0; +} + +int config_parse_exec( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecCommand **e = data; + Unit *u = userdata; + const char *p; + bool semicolon; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(e); + + e += ltype; + rvalue += strspn(rvalue, WHITESPACE); + + if (isempty(rvalue)) { + /* An empty assignment resets the list */ + *e = exec_command_free_list(*e); + return 0; + } + + p = rvalue; + do { + _cleanup_free_ char *path = NULL, *firstword = NULL; + ExecCommandFlags flags = 0; + bool ignore = false, separate_argv0 = false; + _cleanup_free_ ExecCommand *nce = NULL; + _cleanup_strv_free_ char **n = NULL; + size_t nlen = 0, nbufsize = 0; + const char *f; + + semicolon = false; + + r = extract_first_word_and_warn(&p, &firstword, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE, unit, filename, line, rvalue); + if (r <= 0) + return 0; + + f = firstword; + for (;;) { + /* We accept an absolute path as first argument. If it's prefixed with - and the path doesn't + * exist, we ignore it instead of erroring out; if it's prefixed with @, we allow overriding of + * argv[0]; if it's prefixed with +, it will be run with full privileges and no sandboxing; if + * it's prefixed with '!' we apply sandboxing, but do not change user/group credentials; if + * it's prefixed with '!!', then we apply user/group credentials if the kernel supports ambient + * capabilities -- if it doesn't we don't apply the credentials themselves, but do apply most + * other sandboxing, with some special exceptions for changing UID. + * + * The idea is that '!!' may be used to write services that can take benefit of systemd's + * UID/GID dropping if the kernel supports ambient creds, but provide an automatic fallback to + * privilege dropping within the daemon if the kernel does not offer that. */ + + if (*f == '-' && !(flags & EXEC_COMMAND_IGNORE_FAILURE)) { + flags |= EXEC_COMMAND_IGNORE_FAILURE; + ignore = true; + } else if (*f == '@' && !separate_argv0) + separate_argv0 = true; + else if (*f == '+' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC))) + flags |= EXEC_COMMAND_FULLY_PRIVILEGED; + else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC))) + flags |= EXEC_COMMAND_NO_SETUID; + else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_AMBIENT_MAGIC))) { + flags &= ~EXEC_COMMAND_NO_SETUID; + flags |= EXEC_COMMAND_AMBIENT_MAGIC; + } else + break; + f++; + } + + r = unit_full_printf(u, f, &path); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s'%s: %m", + f, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + + if (isempty(path)) { + /* First word is either "-" or "@" with no command. */ + log_syntax(unit, LOG_ERR, filename, line, 0, + "Empty path in command line%s: '%s'", + ignore ? ", ignoring" : "", rvalue); + return ignore ? 0 : -ENOEXEC; + } + if (!string_is_safe(path)) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Executable name contains special characters%s: %s", + ignore ? ", ignoring" : "", path); + return ignore ? 0 : -ENOEXEC; + } + if (endswith(path, "/")) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Executable path specifies a directory%s: %s", + ignore ? ", ignoring" : "", path); + return ignore ? 0 : -ENOEXEC; + } + + if (!path_is_absolute(path)) { + const char *prefix; + bool found = false; + + if (!filename_is_valid(path)) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Neither a valid executable name nor an absolute path%s: %s", + ignore ? ", ignoring" : "", path); + return ignore ? 0 : -ENOEXEC; + } + + /* Resolve a single-component name to a full path */ + NULSTR_FOREACH(prefix, DEFAULT_PATH_NULSTR) { + _cleanup_free_ char *fullpath = NULL; + + fullpath = strjoin(prefix, "/", path); + if (!fullpath) + return log_oom(); + + if (access(fullpath, F_OK) >= 0) { + free_and_replace(path, fullpath); + found = true; + break; + } + } + + if (!found) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Executable \"%s\" not found in path \"%s\"%s", + path, DEFAULT_PATH, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + } + + if (!separate_argv0) { + char *w = NULL; + + if (!GREEDY_REALLOC(n, nbufsize, nlen + 2)) + return log_oom(); + + w = strdup(path); + if (!w) + return log_oom(); + n[nlen++] = w; + n[nlen] = NULL; + } + + path_simplify(path, false); + + while (!isempty(p)) { + _cleanup_free_ char *word = NULL, *resolved = NULL; + + /* Check explicitly for an unquoted semicolon as + * command separator token. */ + if (p[0] == ';' && (!p[1] || strchr(WHITESPACE, p[1]))) { + p++; + p += strspn(p, WHITESPACE); + semicolon = true; + break; + } + + /* Check for \; explicitly, to not confuse it with \\; or "\;" or "\\;" etc. + * extract_first_word() would return the same for all of those. */ + if (p[0] == '\\' && p[1] == ';' && (!p[2] || strchr(WHITESPACE, p[2]))) { + char *w; + + p += 2; + p += strspn(p, WHITESPACE); + + if (!GREEDY_REALLOC(n, nbufsize, nlen + 2)) + return log_oom(); + + w = strdup(";"); + if (!w) + return log_oom(); + n[nlen++] = w; + n[nlen] = NULL; + continue; + } + + r = extract_first_word_and_warn(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE, unit, filename, line, rvalue); + if (r == 0) + break; + if (r < 0) + return ignore ? 0 : -ENOEXEC; + + r = unit_full_printf(u, word, &resolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in %s%s: %m", + word, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + + if (!GREEDY_REALLOC(n, nbufsize, nlen + 2)) + return log_oom(); + + n[nlen++] = TAKE_PTR(resolved); + n[nlen] = NULL; + } + + if (!n || !n[0]) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Empty executable name or zeroeth argument%s: %s", + ignore ? ", ignoring" : "", rvalue); + return ignore ? 0 : -ENOEXEC; + } + + nce = new0(ExecCommand, 1); + if (!nce) + return log_oom(); + + nce->argv = TAKE_PTR(n); + nce->path = TAKE_PTR(path); + nce->flags = flags; + + exec_command_append_list(e, nce); + + /* Do not _cleanup_free_ these. */ + nce = NULL; + + rvalue = p; + } while (semicolon); + + return 0; +} + +int config_parse_socket_bindtodevice( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Socket *s = data; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue) || streq(rvalue, "*")) { + s->bind_to_device = mfree(s->bind_to_device); + return 0; + } + + if (!ifname_valid(rvalue)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid interface name, ignoring: %s", rvalue); + return 0; + } + + if (free_and_strdup(&s->bind_to_device, rvalue) < 0) + return log_oom(); + + return 0; +} + +int config_parse_exec_input( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + const char *n; + ExecInput ei; + int r; + + assert(data); + assert(filename); + assert(line); + assert(rvalue); + + n = startswith(rvalue, "fd:"); + if (n) { + _cleanup_free_ char *resolved = NULL; + + r = unit_full_printf(u, n, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", n); + + if (isempty(resolved)) + resolved = mfree(resolved); + else if (!fdname_is_valid(resolved)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name: %s", resolved); + return -ENOEXEC; + } + + free_and_replace(c->stdio_fdname[STDIN_FILENO], resolved); + + ei = EXEC_INPUT_NAMED_FD; + + } else if ((n = startswith(rvalue, "file:"))) { + _cleanup_free_ char *resolved = NULL; + + r = unit_full_printf(u, n, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", n); + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue); + if (r < 0) + return -ENOEXEC; + + free_and_replace(c->stdio_file[STDIN_FILENO], resolved); + + ei = EXEC_INPUT_FILE; + + } else { + ei = exec_input_from_string(rvalue); + if (ei < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse input specifier, ignoring: %s", rvalue); + return 0; + } + } + + c->std_input = ei; + return 0; +} + +int config_parse_exec_input_text( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *unescaped = NULL, *resolved = NULL; + ExecContext *c = data; + Unit *u = userdata; + size_t sz; + void *p; + int r; + + assert(data); + assert(filename); + assert(line); + assert(rvalue); + + if (isempty(rvalue)) { + /* Reset if the empty string is assigned */ + c->stdin_data = mfree(c->stdin_data); + c->stdin_data_size = 0; + return 0; + } + + r = cunescape(rvalue, 0, &unescaped); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to decode C escaped text '%s': %m", rvalue); + + r = unit_full_printf(u, unescaped, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", unescaped); + + sz = strlen(resolved); + if (c->stdin_data_size + sz + 1 < c->stdin_data_size || /* check for overflow */ + c->stdin_data_size + sz + 1 > EXEC_STDIN_DATA_MAX) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Standard input data too large (%zu), maximum of %zu permitted, ignoring.", c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX); + return -E2BIG; + } + + p = realloc(c->stdin_data, c->stdin_data_size + sz + 1); + if (!p) + return log_oom(); + + *((char*) mempcpy((char*) p + c->stdin_data_size, resolved, sz)) = '\n'; + + c->stdin_data = p; + c->stdin_data_size += sz + 1; + + return 0; +} + +int config_parse_exec_input_data( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ void *p = NULL; + ExecContext *c = data; + size_t sz; + void *q; + int r; + + assert(data); + assert(filename); + assert(line); + assert(rvalue); + + if (isempty(rvalue)) { + /* Reset if the empty string is assigned */ + c->stdin_data = mfree(c->stdin_data); + c->stdin_data_size = 0; + return 0; + } + + r = unbase64mem(rvalue, (size_t) -1, &p, &sz); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to decode base64 data, ignoring: %s", rvalue); + + assert(sz > 0); + + if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */ + c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Standard input data too large (%zu), maximum of %zu permitted, ignoring.", c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX); + return -E2BIG; + } + + q = realloc(c->stdin_data, c->stdin_data_size + sz); + if (!q) + return log_oom(); + + memcpy((uint8_t*) q + c->stdin_data_size, p, sz); + + c->stdin_data = q; + c->stdin_data_size += sz; + + return 0; +} + +int config_parse_exec_output( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *resolved = NULL; + const char *n; + ExecContext *c = data; + Unit *u = userdata; + ExecOutput eo; + int r; + + assert(data); + assert(filename); + assert(line); + assert(lvalue); + assert(rvalue); + + n = startswith(rvalue, "fd:"); + if (n) { + r = unit_full_printf(u, n, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n); + + if (isempty(resolved)) + resolved = mfree(resolved); + else if (!fdname_is_valid(resolved)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name: %s", resolved); + return -ENOEXEC; + } + + eo = EXEC_OUTPUT_NAMED_FD; + + } else if ((n = startswith(rvalue, "file:"))) { + + r = unit_full_printf(u, n, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n); + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue); + if (r < 0) + return -ENOEXEC; + + eo = EXEC_OUTPUT_FILE; + + } else if ((n = startswith(rvalue, "append:"))) { + + r = unit_full_printf(u, n, &resolved); + if (r < 0) + return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n); + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue); + if (r < 0) + return -ENOEXEC; + + eo = EXEC_OUTPUT_FILE_APPEND; + } else { + eo = exec_output_from_string(rvalue); + if (eo < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse output specifier, ignoring: %s", rvalue); + return 0; + } + } + + if (streq(lvalue, "StandardOutput")) { + if (eo == EXEC_OUTPUT_NAMED_FD) + free_and_replace(c->stdio_fdname[STDOUT_FILENO], resolved); + else + free_and_replace(c->stdio_file[STDOUT_FILENO], resolved); + + c->std_output = eo; + + } else { + assert(streq(lvalue, "StandardError")); + + if (eo == EXEC_OUTPUT_NAMED_FD) + free_and_replace(c->stdio_fdname[STDERR_FILENO], resolved); + else + free_and_replace(c->stdio_file[STDERR_FILENO], resolved); + + c->std_error = eo; + } + + return 0; +} + +int config_parse_exec_io_class(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + 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 (isempty(rvalue)) { + c->ioprio_set = false; + c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0); + return 0; + } + + x = ioprio_class_from_string(rvalue); + if (x < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IO scheduling class, ignoring: %s", rvalue); + return 0; + } + + c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio)); + c->ioprio_set = true; + + return 0; +} + +int config_parse_exec_io_priority(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + int i, r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->ioprio_set = false; + c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0); + return 0; + } + + r = ioprio_parse_priority(rvalue, &i); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse IO priority, ignoring: %s", rvalue); + return 0; + } + + c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i); + c->ioprio_set = true; + + return 0; +} + +int config_parse_exec_cpu_sched_policy(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + 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 (isempty(rvalue)) { + c->cpu_sched_set = false; + c->cpu_sched_policy = SCHED_OTHER; + c->cpu_sched_priority = 0; + return 0; + } + + x = sched_policy_from_string(rvalue); + if (x < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse CPU scheduling policy, ignoring: %s", rvalue); + return 0; + } + + c->cpu_sched_policy = x; + /* Moving to or from real-time policy? We need to adjust the priority */ + c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x)); + c->cpu_sched_set = true; + + return 0; +} + +int config_parse_exec_cpu_sched_prio(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + int i, min, max, r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + r = safe_atoi(rvalue, &i); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CPU scheduling priority, ignoring: %s", rvalue); + return 0; + } + + /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0 */ + min = sched_get_priority_min(c->cpu_sched_policy); + max = sched_get_priority_max(c->cpu_sched_policy); + + if (i < min || i > max) { + log_syntax(unit, LOG_ERR, filename, line, 0, "CPU scheduling priority is out of range, ignoring: %s", rvalue); + return 0; + } + + c->cpu_sched_priority = i; + c->cpu_sched_set = true; + + return 0; +} + +int config_parse_exec_cpu_affinity(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + _cleanup_cpu_free_ cpu_set_t *cpuset = NULL; + int ncpus; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + ncpus = parse_cpu_set_and_warn(rvalue, &cpuset, unit, filename, line, lvalue); + if (ncpus < 0) + return ncpus; + + if (ncpus == 0) { + /* An empty assignment resets the CPU list */ + c->cpuset = cpu_set_mfree(c->cpuset); + c->cpuset_ncpus = 0; + return 0; + } + + if (!c->cpuset) { + c->cpuset = TAKE_PTR(cpuset); + c->cpuset_ncpus = (unsigned) ncpus; + return 0; + } + + if (c->cpuset_ncpus < (unsigned) ncpus) { + CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, cpuset); + CPU_FREE(c->cpuset); + c->cpuset = TAKE_PTR(cpuset); + c->cpuset_ncpus = (unsigned) ncpus; + return 0; + } + + CPU_OR_S(CPU_ALLOC_SIZE((unsigned) ncpus), c->cpuset, c->cpuset, cpuset); + + return 0; +} + +int config_parse_capability_set( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + uint64_t *capability_set = data; + uint64_t sum = 0, initial = 0; + bool invert = false; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (rvalue[0] == '~') { + invert = true; + rvalue++; + } + + if (streq(lvalue, "CapabilityBoundingSet")) + initial = CAP_ALL; /* initialized to all bits on */ + /* else "AmbientCapabilities" initialized to all bits off */ + + r = capability_set_from_string(rvalue, &sum); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= specifier '%s', ignoring: %m", lvalue, rvalue); + return 0; + } + + if (sum == 0 || *capability_set == initial) + /* "", "~" or uninitialized data -> replace */ + *capability_set = invert ? ~sum : sum; + else { + /* previous data -> merge */ + if (invert) + *capability_set &= ~sum; + else + *capability_set |= sum; + } + + return 0; +} + +int config_parse_exec_selinux_context( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + bool ignore; + char *k; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->selinux_context = mfree(c->selinux_context); + c->selinux_context_ignore = false; + return 0; + } + + if (rvalue[0] == '-') { + ignore = true; + rvalue++; + } else + ignore = false; + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s'%s: %m", + rvalue, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + + free_and_replace(c->selinux_context, k); + c->selinux_context_ignore = ignore; + + return 0; +} + +int config_parse_exec_apparmor_profile( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + bool ignore; + char *k; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->apparmor_profile = mfree(c->apparmor_profile); + c->apparmor_profile_ignore = false; + return 0; + } + + if (rvalue[0] == '-') { + ignore = true; + rvalue++; + } else + ignore = false; + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s'%s: %m", + rvalue, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + + free_and_replace(c->apparmor_profile, k); + c->apparmor_profile_ignore = ignore; + + return 0; +} + +int config_parse_exec_smack_process_label( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + bool ignore; + char *k; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + c->smack_process_label = mfree(c->smack_process_label); + c->smack_process_label_ignore = false; + return 0; + } + + if (rvalue[0] == '-') { + ignore = true; + rvalue++; + } else + ignore = false; + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in '%s'%s: %m", + rvalue, ignore ? ", ignoring" : ""); + return ignore ? 0 : -ENOEXEC; + } + + free_and_replace(c->smack_process_label, k); + c->smack_process_label_ignore = ignore; + + return 0; +} + +int config_parse_timer(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Timer *t = data; + usec_t usec = 0; + TimerValue *v; + TimerBase b; + _cleanup_(calendar_spec_freep) CalendarSpec *c = NULL; + Unit *u = userdata; + _cleanup_free_ char *k = NULL; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets list */ + timer_free_values(t); + return 0; + } + + b = timer_base_from_string(lvalue); + if (b < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer base, ignoring: %s", lvalue); + return 0; + } + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + if (b == TIMER_CALENDAR) { + if (calendar_spec_from_string(k, &c) < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse calendar specification, ignoring: %s", k); + return 0; + } + } else + if (parse_sec(k, &usec) < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer value, ignoring: %s", k); + return 0; + } + + v = new0(TimerValue, 1); + if (!v) + return log_oom(); + + v->base = b; + v->value = usec; + v->calendar_spec = TAKE_PTR(c); + + LIST_PREPEND(value, t->values, v); + + return 0; +} + +int config_parse_trigger_unit( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *p = NULL; + Unit *u = data; + UnitType type; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (!hashmap_isempty(u->dependencies[UNIT_TRIGGERS])) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Multiple units to trigger specified, ignoring: %s", rvalue); + return 0; + } + + r = unit_name_printf(u, rvalue, &p); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue); + return 0; + } + + type = unit_name_to_type(p); + if (type < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Unit type not valid, ignoring: %s", rvalue); + return 0; + } + if (unit_has_name(u, p)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Units cannot trigger themselves, ignoring: %s", rvalue); + return 0; + } + + r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, true, UNIT_DEPENDENCY_FILE); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add trigger on %s, ignoring: %m", p); + return 0; + } + + return 0; +} + +int config_parse_path_spec(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Path *p = data; + PathSpec *s; + PathType b; + _cleanup_free_ char *k = NULL; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment clears list */ + path_free_specs(p); + return 0; + } + + b = path_type_from_string(lvalue); + if (b < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse path type, ignoring: %s", lvalue); + return 0; + } + + r = unit_full_printf(UNIT(p), rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue); + return 0; + } + + r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return 0; + + s = new0(PathSpec, 1); + if (!s) + return log_oom(); + + s->unit = UNIT(p); + s->path = TAKE_PTR(k); + s->type = b; + s->inotify_fd = -1; + + LIST_PREPEND(spec, p->specs, s); + + return 0; +} + +int config_parse_socket_service( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_free_ char *p = NULL; + Socket *s = data; + Unit *x; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + r = unit_name_printf(UNIT(s), rvalue, &p); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue); + return -ENOEXEC; + } + + if (!endswith(p, ".service")) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Unit must be of type service: %s", rvalue); + return -ENOEXEC; + } + + r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load unit %s: %s", rvalue, bus_error_message(&error, r)); + return -ENOEXEC; + } + + unit_ref_set(&s->service, UNIT(s), x); + + return 0; +} + +int config_parse_fdname( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *p = NULL; + Socket *s = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + s->fdname = mfree(s->fdname); + return 0; + } + + r = unit_full_printf(UNIT(s), rvalue, &p); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + if (!fdname_is_valid(p)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p); + return 0; + } + + return free_and_replace(s->fdname, p); +} + +int config_parse_service_sockets( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Service *s = data; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + p = rvalue; + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, 0); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Trailing garbage in sockets, ignoring: %s", rvalue); + break; + } + + r = unit_name_printf(UNIT(s), word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word); + continue; + } + + if (!endswith(k, ".socket")) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Unit must be of type socket, ignoring: %s", k); + continue; + } + + r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, true, UNIT_DEPENDENCY_FILE); + if (r < 0) + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k); + + r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, true, UNIT_DEPENDENCY_FILE); + if (r < 0) + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k); + } + + return 0; +} + +int config_parse_bus_name( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *k = NULL; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue); + return 0; + } + + if (!service_name_is_valid(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid bus name, ignoring: %s", k); + return 0; + } + + return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata); +} + +int config_parse_service_timeout( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Service *s = userdata; + usec_t usec; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(s); + + /* This is called for two cases: TimeoutSec= and TimeoutStartSec=. */ + + /* Traditionally, these options accepted 0 to disable the timeouts. However, a timeout of 0 suggests it happens + * immediately, hence fix this to become USEC_INFINITY instead. This is in-line with how we internally handle + * all other timeouts. */ + r = parse_sec_fix_0(rvalue, &usec); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue); + return 0; + } + + s->start_timeout_defined = true; + s->timeout_start_usec = usec; + + if (streq(lvalue, "TimeoutSec")) + s->timeout_stop_usec = usec; + + return 0; +} + +int config_parse_sec_fix_0( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + usec_t *usec = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(usec); + + /* This is pretty much like config_parse_sec(), except that this treats a time of 0 as infinity, for + * compatibility with older versions of systemd where 0 instead of infinity was used as indicator to turn off a + * timeout. */ + + r = parse_sec_fix_0(rvalue, usec); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue); + return 0; + } + + return 0; +} + +int config_parse_user_group( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *k = NULL; + char **user = data; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + *user = mfree(*user); + return 0; + } + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue); + return -ENOEXEC; + } + + if (!valid_user_group_name_or_id(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k); + return -ENOEXEC; + } + + return free_and_replace(*user, k); +} + +int config_parse_user_group_strv( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + char ***users = data; + Unit *u = userdata; + const char *p = rvalue; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + *users = strv_free(*users); + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, 0); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax: %s", rvalue); + return -ENOEXEC; + } + + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", word); + return -ENOEXEC; + } + + if (!valid_user_group_name_or_id(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k); + return -ENOEXEC; + } + + r = strv_push(users, k); + if (r < 0) + return log_oom(); + + k = NULL; + } + + return 0; +} + +int config_parse_working_directory( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + bool missing_ok; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(c); + assert(u); + + if (isempty(rvalue)) { + c->working_directory_home = false; + c->working_directory = mfree(c->working_directory); + return 0; + } + + if (rvalue[0] == '-') { + missing_ok = true; + rvalue++; + } else + missing_ok = false; + + if (streq(rvalue, "~")) { + c->working_directory_home = true; + c->working_directory = mfree(c->working_directory); + } else { + _cleanup_free_ char *k = NULL; + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in working directory path '%s'%s: %m", + rvalue, missing_ok ? ", ignoring" : ""); + return missing_ok ? 0 : -ENOEXEC; + } + + r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE | (missing_ok ? 0 : PATH_CHECK_FATAL), unit, filename, line, lvalue); + if (r < 0) + return missing_ok ? 0 : -ENOEXEC; + + c->working_directory_home = false; + free_and_replace(c->working_directory, k); + } + + c->working_directory_missing_ok = missing_ok; + return 0; +} + +int config_parse_unit_env_file(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + char ***env = data; + Unit *u = userdata; + _cleanup_free_ char *n = NULL; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment frees the list */ + *env = strv_free(*env); + return 0; + } + + r = unit_full_printf(u, rvalue, &n); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + r = path_simplify_and_warn(n[0] == '-' ? n + 1 : n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return 0; + + r = strv_push(env, n); + if (r < 0) + return log_oom(); + + n = NULL; + + return 0; +} + +int config_parse_environ( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = userdata; + char ***env = data; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *env = strv_free(*env); + return 0; + } + + for (p = rvalue;; ) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + if (u) { + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in %s, ignoring: %m", word); + continue; + } + } else + k = TAKE_PTR(word); + + if (!env_assignment_is_valid(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Invalid environment assignment, ignoring: %s", k); + continue; + } + + r = strv_env_replace(env, k); + if (r < 0) + return log_oom(); + + k = NULL; + } +} + +int config_parse_pass_environ( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_strv_free_ char **n = NULL; + size_t nlen = 0, nbufsize = 0; + char*** passenv = data; + const char *p = rvalue; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *passenv = strv_free(*passenv); + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Trailing garbage in %s, ignoring: %s", lvalue, rvalue); + break; + } + + if (u) { + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve specifiers in %s, ignoring: %m", word); + continue; + } + } else + k = TAKE_PTR(word); + + if (!env_name_is_valid(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Invalid environment name for %s, ignoring: %s", lvalue, k); + continue; + } + + if (!GREEDY_REALLOC(n, nbufsize, nlen + 2)) + return log_oom(); + + n[nlen++] = TAKE_PTR(k); + n[nlen] = NULL; + } + + if (n) { + r = strv_extend_strv(passenv, n, true); + if (r < 0) + return r; + } + + return 0; +} + +int config_parse_unset_environ( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_strv_free_ char **n = NULL; + size_t nlen = 0, nbufsize = 0; + char*** unsetenv = data; + const char *p = rvalue; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *unsetenv = strv_free(*unsetenv); + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Trailing garbage in %s, ignoring: %s", lvalue, rvalue); + break; + } + + if (u) { + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in %s, ignoring: %m", word); + continue; + } + } else + k = TAKE_PTR(word); + + if (!env_assignment_is_valid(k) && !env_name_is_valid(k)) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "Invalid environment name or assignment %s, ignoring: %s", lvalue, k); + continue; + } + + if (!GREEDY_REALLOC(n, nbufsize, nlen + 2)) + return log_oom(); + + n[nlen++] = TAKE_PTR(k); + n[nlen] = NULL; + } + + if (n) { + r = strv_extend_strv(unsetenv, n, true); + if (r < 0) + return r; + } + + return 0; +} + +int config_parse_log_extra_fields( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + const char *p = rvalue; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(c); + + if (isempty(rvalue)) { + exec_context_free_log_extra_fields(c); + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + struct iovec *t; + const char *eq; + + r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", word); + continue; + } + + eq = strchr(k, '='); + if (!eq) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Log field lacks '=' character, ignoring: %s", k); + continue; + } + + if (!journal_field_valid(k, eq-k, false)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Log field name is invalid, ignoring: %s", k); + continue; + } + + t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec)); + if (!t) + return log_oom(); + + c->log_extra_fields = t; + c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE_STRING(k); + + k = NULL; + } +} + +int config_parse_unit_condition_path( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *p = NULL; + Condition **list = data, *c; + ConditionType t = ltype; + bool trigger, negate; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *list = condition_free_list(*list); + return 0; + } + + trigger = rvalue[0] == '|'; + if (trigger) + rvalue++; + + negate = rvalue[0] == '!'; + if (negate) + rvalue++; + + r = unit_full_printf(u, rvalue, &p); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue); + return 0; + } + + r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return 0; + + c = condition_new(t, p, trigger, negate); + if (!c) + return log_oom(); + + LIST_PREPEND(conditions, *list, c); + return 0; +} + +int config_parse_unit_condition_string( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *s = NULL; + Condition **list = data, *c; + ConditionType t = ltype; + bool trigger, negate; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *list = condition_free_list(*list); + return 0; + } + + trigger = rvalue[0] == '|'; + if (trigger) + rvalue++; + + negate = rvalue[0] == '!'; + if (negate) + rvalue++; + + r = unit_full_printf(u, rvalue, &s); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + c = condition_new(t, s, trigger, negate); + if (!c) + return log_oom(); + + LIST_PREPEND(conditions, *list, c); + return 0; +} + +int config_parse_unit_condition_null( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Condition **list = data, *c; + bool trigger, negate; + int b; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *list = condition_free_list(*list); + return 0; + } + + trigger = rvalue[0] == '|'; + if (trigger) + rvalue++; + + negate = rvalue[0] == '!'; + if (negate) + rvalue++; + + b = parse_boolean(rvalue); + if (b < 0) { + log_syntax(unit, LOG_ERR, filename, line, b, "Failed to parse boolean value in condition, ignoring: %s", rvalue); + return 0; + } + + if (!b) + negate = !negate; + + c = condition_new(CONDITION_NULL, NULL, trigger, negate); + if (!c) + return log_oom(); + + LIST_PREPEND(conditions, *list, c); + return 0; +} + +int config_parse_unit_requires_mounts_for( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + const char *p = rvalue; + Unit *u = userdata; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + for (;;) { + _cleanup_free_ char *word = NULL, *resolved = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + r = unit_full_printf(u, word, &resolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word); + continue; + } + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + continue; + + r = unit_require_mounts_for(u, resolved, UNIT_DEPENDENCY_FILE); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add required mount '%s', ignoring: %m", resolved); + continue; + } + } +} + +int config_parse_documentation(const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = userdata; + int r; + char **a, **b; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + u->documentation = strv_free(u->documentation); + return 0; + } + + r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype, + rvalue, data, userdata); + if (r < 0) + return r; + + for (a = b = u->documentation; a && *a; a++) { + + if (documentation_url_is_valid(*a)) + *(b++) = *a; + else { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid URL, ignoring: %s", *a); + free(*a); + } + } + if (b) + *b = NULL; + + return r; +} + +#if HAVE_SECCOMP +int config_parse_syscall_filter( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + bool invert = false; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + c->syscall_filter = hashmap_free(c->syscall_filter); + c->syscall_whitelist = false; + return 0; + } + + if (rvalue[0] == '~') { + invert = true; + rvalue++; + } + + if (!c->syscall_filter) { + c->syscall_filter = hashmap_new(NULL); + if (!c->syscall_filter) + return log_oom(); + + if (invert) + /* Allow everything but the ones listed */ + c->syscall_whitelist = false; + else { + /* Allow nothing but the ones listed */ + c->syscall_whitelist = true; + + /* Accept default syscalls if we are on a whitelist */ + r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST); + if (r < 0) + return r; + } + } + + p = rvalue; + for (;;) { + _cleanup_free_ char *word = NULL, *name = NULL; + int num; + + r = extract_first_word(&p, &word, NULL, 0); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + r = parse_syscall_and_errno(word, &name, &num); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse syscall:errno, ignoring: %s", word); + continue; + } + + r = seccomp_parse_syscall_filter_full(name, num, c->syscall_filter, + SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|(invert ? SECCOMP_PARSE_INVERT : 0)|(c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0), + unit, filename, line); + if (r < 0) + return r; + } +} + +int config_parse_syscall_archs( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + const char *p = rvalue; + Set **archs = data; + int r; + + if (isempty(rvalue)) { + *archs = set_free(*archs); + return 0; + } + + r = set_ensure_allocated(archs, NULL); + if (r < 0) + return log_oom(); + + for (;;) { + _cleanup_free_ char *word = NULL; + uint32_t a; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + r = seccomp_arch_from_string(word, &a); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to parse system call architecture \"%s\", ignoring: %m", word); + continue; + } + + r = set_put(*archs, UINT32_TO_PTR(a + 1)); + if (r < 0) + return log_oom(); + } +} + +int config_parse_syscall_errno( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + int e; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + /* Empty assignment resets to KILL */ + c->syscall_errno = 0; + return 0; + } + + e = parse_errno(rvalue); + if (e <= 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse error number, ignoring: %s", rvalue); + return 0; + } + + c->syscall_errno = e; + return 0; +} + +int config_parse_address_families( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + bool invert = false; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + c->address_families = set_free(c->address_families); + c->address_families_whitelist = false; + return 0; + } + + if (rvalue[0] == '~') { + invert = true; + rvalue++; + } + + if (!c->address_families) { + c->address_families = set_new(NULL); + if (!c->address_families) + return log_oom(); + + c->address_families_whitelist = !invert; + } + + for (p = rvalue;;) { + _cleanup_free_ char *word = NULL; + int af; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + af = af_from_name(word); + if (af < 0) { + log_syntax(unit, LOG_ERR, filename, line, af, + "Failed to parse address family, ignoring: %s", word); + continue; + } + + /* If we previously wanted to forbid an address family and now + * we want to allow it, then just remove it from the list. + */ + if (!invert == c->address_families_whitelist) { + r = set_put(c->address_families, INT_TO_PTR(af)); + if (r < 0) + return log_oom(); + } else + set_remove(c->address_families, INT_TO_PTR(af)); + } +} + +int config_parse_restrict_namespaces( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + unsigned long flags; + bool invert = false; + int r; + + if (isempty(rvalue)) { + /* Reset to the default. */ + c->restrict_namespaces = NAMESPACE_FLAGS_INITIAL; + return 0; + } + + /* Boolean parameter ignores the previous settings */ + r = parse_boolean(rvalue); + if (r > 0) { + c->restrict_namespaces = 0; + return 0; + } else if (r == 0) { + c->restrict_namespaces = NAMESPACE_FLAGS_ALL; + return 0; + } + + if (rvalue[0] == '~') { + invert = true; + rvalue++; + } + + /* Not a boolean argument, in this case it's a list of namespace types. */ + r = namespace_flags_from_string(rvalue, &flags); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse namespace type string, ignoring: %s", rvalue); + return 0; + } + + if (c->restrict_namespaces == NAMESPACE_FLAGS_INITIAL) + /* Initial assignment. Just set the value. */ + c->restrict_namespaces = invert ? (~flags) & NAMESPACE_FLAGS_ALL : flags; + else + /* Merge the value with the previous one. */ + SET_FLAG(c->restrict_namespaces, flags, !invert); + + return 0; +} +#endif + +int config_parse_unit_slice( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_free_ char *k = NULL; + Unit *u = userdata, *slice = NULL; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = unit_name_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue); + return 0; + } + + r = manager_load_unit(u->manager, k, NULL, &error, &slice); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load slice unit %s, ignoring: %s", k, bus_error_message(&error, r)); + return 0; + } + + r = unit_set_slice(u, slice); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to assign slice %s to unit %s, ignoring: %m", slice->id, u->id); + return 0; + } + + return 0; +} + +int config_parse_cpu_quota( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + CGroupContext *c = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + c->cpu_quota_per_sec_usec = USEC_INFINITY; + return 0; + } + + r = parse_permille_unbounded(rvalue); + if (r <= 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid CPU quota '%s', ignoring.", rvalue); + return 0; + } + + c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 1000U; + return 0; +} + +int config_parse_memory_limit( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + CGroupContext *c = data; + uint64_t bytes = CGROUP_LIMIT_MAX; + int r; + + if (!isempty(rvalue) && !streq(rvalue, "infinity")) { + + r = parse_permille(rvalue); + if (r < 0) { + r = parse_size(rvalue, 1024, &bytes); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid memory limit '%s', ignoring: %m", rvalue); + return 0; + } + } else + bytes = physical_memory_scale(r, 1000U); + + if (bytes >= UINT64_MAX || + (bytes <= 0 && !streq(lvalue, "MemorySwapMax"))) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Memory limit '%s' out of range, ignoring.", rvalue); + return 0; + } + } + + if (streq(lvalue, "MemoryMin")) + c->memory_min = bytes; + else if (streq(lvalue, "MemoryLow")) + c->memory_low = bytes; + else if (streq(lvalue, "MemoryHigh")) + c->memory_high = bytes; + else if (streq(lvalue, "MemoryMax")) + c->memory_max = bytes; + else if (streq(lvalue, "MemorySwapMax")) + c->memory_swap_max = bytes; + else if (streq(lvalue, "MemoryLimit")) + c->memory_limit = bytes; + else + return -EINVAL; + + return 0; +} + +int config_parse_tasks_max( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + uint64_t *tasks_max = data, v; + Unit *u = userdata; + int r; + + if (isempty(rvalue)) { + *tasks_max = u ? u->manager->default_tasks_max : UINT64_MAX; + return 0; + } + + if (streq(rvalue, "infinity")) { + *tasks_max = CGROUP_LIMIT_MAX; + return 0; + } + + r = parse_permille(rvalue); + if (r < 0) { + r = safe_atou64(rvalue, &v); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid maximum tasks value '%s', ignoring: %m", rvalue); + return 0; + } + } else + v = system_tasks_max_scale(r, 1000U); + + if (v <= 0 || v >= UINT64_MAX) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Maximum tasks value '%s' out of range, ignoring.", rvalue); + return 0; + } + + *tasks_max = v; + return 0; +} + +int config_parse_delegate( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + CGroupContext *c = data; + UnitType t; + int r; + + t = unit_name_to_type(unit); + assert(t != _UNIT_TYPE_INVALID); + + if (!unit_vtable[t]->can_delegate) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Delegate= setting not supported for this unit type, ignoring."); + return 0; + } + + /* We either accept a boolean value, which may be used to turn on delegation for all controllers, or turn it + * off for all. Or it takes a list of controller names, in which case we add the specified controllers to the + * mask to delegate. */ + + if (isempty(rvalue)) { + /* An empty string resets controllers and set Delegate=yes. */ + c->delegate = true; + c->delegate_controllers = 0; + return 0; + } + + r = parse_boolean(rvalue); + if (r < 0) { + const char *p = rvalue; + CGroupMask mask = 0; + + for (;;) { + _cleanup_free_ char *word = NULL; + CGroupController cc; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + + cc = cgroup_controller_from_string(word); + if (cc < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid controller name '%s', ignoring", word); + continue; + } + + mask |= CGROUP_CONTROLLER_TO_MASK(cc); + } + + c->delegate = true; + c->delegate_controllers |= mask; + + } else if (r > 0) { + c->delegate = true; + c->delegate_controllers = _CGROUP_MASK_ALL; + } else { + c->delegate = false; + c->delegate_controllers = 0; + } + + return 0; +} + +int config_parse_device_allow( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupContext *c = data; + const char *p = rvalue; + int r; + + if (isempty(rvalue)) { + while (c->device_allow) + cgroup_context_free_device_allow(c, c->device_allow); + + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device path and rights from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + if (!STARTSWITH_SET(resolved, "block-", "char-")) { + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + if (!valid_device_node_path(resolved)) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid device node path '%s', ignoring.", resolved); + return 0; + } + } + + if (!isempty(p) && !in_charset(p, "rwm")) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid device rights '%s', ignoring.", p); + return 0; + } + + return cgroup_add_device_allow(c, resolved, p); +} + +int config_parse_io_device_weight( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupIODeviceWeight *w; + CGroupContext *c = data; + const char *p = rvalue; + uint64_t u; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + while (c->io_device_weights) + cgroup_context_free_io_device_weight(c, c->io_device_weights); + + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0 || isempty(p)) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device path and weight from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + r = cg_weight_parse(p, &u); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "IO weight '%s' invalid, ignoring: %m", p); + return 0; + } + + assert(u != CGROUP_WEIGHT_INVALID); + + w = new0(CGroupIODeviceWeight, 1); + if (!w) + return log_oom(); + + w->path = TAKE_PTR(resolved); + w->weight = u; + + LIST_PREPEND(device_weights, c->io_device_weights, w); + return 0; +} + +int config_parse_io_device_latency( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupIODeviceLatency *l; + CGroupContext *c = data; + const char *p = rvalue; + usec_t usec; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + while (c->io_device_latencies) + cgroup_context_free_io_device_latency(c, c->io_device_latencies); + + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0 || isempty(p)) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device path and latency from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + if (parse_sec(p, &usec) < 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer value, ignoring: %s", p); + return 0; + } + + l = new0(CGroupIODeviceLatency, 1); + if (!l) + return log_oom(); + + l->path = TAKE_PTR(resolved); + l->target_usec = usec; + + LIST_PREPEND(device_latencies, c->io_device_latencies, l); + return 0; +} + +int config_parse_io_limit( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupIODeviceLimit *l = NULL, *t; + CGroupContext *c = data; + CGroupIOLimitType type; + const char *p = rvalue; + uint64_t num; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + type = cgroup_io_limit_type_from_string(lvalue); + assert(type >= 0); + + if (isempty(rvalue)) { + LIST_FOREACH(device_limits, l, c->io_device_limits) + l->limits[type] = cgroup_io_limit_defaults[type]; + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0 || isempty(p)) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + if (streq("infinity", p)) + num = CGROUP_LIMIT_MAX; + else { + r = parse_size(p, 1000, &num); + if (r < 0 || num <= 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid IO limit '%s', ignoring.", p); + return 0; + } + } + + LIST_FOREACH(device_limits, t, c->io_device_limits) { + if (path_equal(resolved, t->path)) { + l = t; + break; + } + } + + if (!l) { + CGroupIOLimitType ttype; + + l = new0(CGroupIODeviceLimit, 1); + if (!l) + return log_oom(); + + l->path = TAKE_PTR(resolved); + for (ttype = 0; ttype < _CGROUP_IO_LIMIT_TYPE_MAX; ttype++) + l->limits[ttype] = cgroup_io_limit_defaults[ttype]; + + LIST_PREPEND(device_limits, c->io_device_limits, l); + } + + l->limits[type] = num; + + return 0; +} + +int config_parse_blockio_device_weight( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupBlockIODeviceWeight *w; + CGroupContext *c = data; + const char *p = rvalue; + uint64_t u; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + if (isempty(rvalue)) { + while (c->blockio_device_weights) + cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights); + + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0 || isempty(p)) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device node and weight from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + r = cg_blkio_weight_parse(p, &u); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid block IO weight '%s', ignoring: %m", p); + return 0; + } + + assert(u != CGROUP_BLKIO_WEIGHT_INVALID); + + w = new0(CGroupBlockIODeviceWeight, 1); + if (!w) + return log_oom(); + + w->path = TAKE_PTR(resolved); + w->weight = u; + + LIST_PREPEND(device_weights, c->blockio_device_weights, w); + return 0; +} + +int config_parse_blockio_bandwidth( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *path = NULL, *resolved = NULL; + CGroupBlockIODeviceBandwidth *b = NULL, *t; + CGroupContext *c = data; + const char *p = rvalue; + uint64_t bytes; + bool read; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + read = streq("BlockIOReadBandwidth", lvalue); + + if (isempty(rvalue)) { + LIST_FOREACH(device_bandwidths, b, c->blockio_device_bandwidths) { + b->rbps = CGROUP_LIMIT_MAX; + b->wbps = CGROUP_LIMIT_MAX; + } + return 0; + } + + r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0 || isempty(p)) { + log_syntax(unit, LOG_WARNING, filename, line, 0, + "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue); + return 0; + } + + r = unit_full_printf(userdata, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Failed to resolve unit specifiers in '%s', ignoring: %m", path); + return 0; + } + + r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue); + if (r < 0) + return 0; + + r = parse_size(p, 1000, &bytes); + if (r < 0 || bytes <= 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid Block IO Bandwidth '%s', ignoring.", p); + return 0; + } + + LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths) { + if (path_equal(resolved, t->path)) { + b = t; + break; + } + } + + if (!t) { + b = new0(CGroupBlockIODeviceBandwidth, 1); + if (!b) + return log_oom(); + + b->path = TAKE_PTR(resolved); + b->rbps = CGROUP_LIMIT_MAX; + b->wbps = CGROUP_LIMIT_MAX; + + LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b); + } + + if (read) + b->rbps = bytes; + else + b->wbps = bytes; + + return 0; +} + +int config_parse_job_mode_isolate( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + JobMode *m = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + + r = parse_boolean(rvalue); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse boolean, ignoring: %s", rvalue); + return 0; + } + + log_notice("%s is deprecated. Please use OnFailureJobMode= instead", lvalue); + + *m = r ? JOB_ISOLATE : JOB_REPLACE; + return 0; +} + +int config_parse_exec_directories( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + char***rt = data; + Unit *u = userdata; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *rt = strv_free(*rt); + return 0; + } + + for (p = rvalue;;) { + _cleanup_free_ char *word = NULL, *k = NULL; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_WARNING, filename, line, r, + "Invalid syntax, ignoring: %s", rvalue); + return 0; + } + if (r == 0) + return 0; + + r = unit_full_printf(u, word, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word); + continue; + } + + r = path_simplify_and_warn(k, PATH_CHECK_RELATIVE, unit, filename, line, lvalue); + if (r < 0) + continue; + + if (path_startswith(k, "private")) { + log_syntax(unit, LOG_ERR, filename, line, 0, + "%s= path can't be 'private', ignoring assignment: %s", lvalue, word); + continue; + } + + r = strv_push(rt, k); + if (r < 0) + return log_oom(); + k = NULL; + } +} + +int config_parse_set_status( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + size_t l; + const char *word, *state; + int r; + ExitStatusSet *status_set = data; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + /* Empty assignment resets the list */ + if (isempty(rvalue)) { + exit_status_set_free(status_set); + return 0; + } + + FOREACH_WORD(word, l, rvalue, state) { + _cleanup_free_ char *temp; + int val; + Set **set; + + temp = strndup(word, l); + if (!temp) + return log_oom(); + + r = safe_atoi(temp, &val); + if (r < 0) { + val = signal_from_string(temp); + + if (val <= 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse value, ignoring: %s", word); + continue; + } + set = &status_set->signal; + } else { + if (val < 0 || val > 255) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Value %d is outside range 0-255, ignoring", val); + continue; + } + set = &status_set->status; + } + + r = set_ensure_allocated(set, NULL); + if (r < 0) + return log_oom(); + + r = set_put(*set, INT_TO_PTR(val)); + if (r < 0) + return log_oom(); + } + if (!isempty(state)) + log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring."); + + return 0; +} + +int config_parse_namespace_path_strv( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = userdata; + char*** sv = data; + const char *p = rvalue; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + *sv = strv_free(*sv); + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *resolved = NULL, *joined = NULL; + const char *w; + bool ignore_enoent = false, shall_prefix = false; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue); + return 0; + } + + w = word; + if (startswith(w, "-")) { + ignore_enoent = true; + w++; + } + if (startswith(w, "+")) { + shall_prefix = true; + w++; + } + + r = unit_full_printf(u, w, &resolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", w); + continue; + } + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + continue; + + joined = strjoin(ignore_enoent ? "-" : "", + shall_prefix ? "+" : "", + resolved); + + r = strv_push(sv, joined); + if (r < 0) + return log_oom(); + + joined = NULL; + } + + return 0; +} + +int config_parse_temporary_filesystems( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = userdata; + ExecContext *c = data; + const char *p = rvalue; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems); + c->temporary_filesystems = NULL; + c->n_temporary_filesystems = 0; + return 0; + } + + for (;;) { + _cleanup_free_ char *word = NULL, *path = NULL, *resolved = NULL; + const char *w; + + r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES); + if (r == 0) + return 0; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue); + return 0; + } + + w = word; + r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", word); + continue; + } + if (r == 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid syntax, ignoring: %s", word); + continue; + } + + r = unit_full_printf(u, path, &resolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", path); + continue; + } + + r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + continue; + + r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, resolved, w); + if (r < 0) + return log_oom(); + } +} + +int config_parse_bind_paths( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + ExecContext *c = data; + Unit *u = userdata; + const char *p; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (isempty(rvalue)) { + /* Empty assignment resets the list */ + bind_mount_free_many(c->bind_mounts, c->n_bind_mounts); + c->bind_mounts = NULL; + c->n_bind_mounts = 0; + return 0; + } + + p = rvalue; + for (;;) { + _cleanup_free_ char *source = NULL, *destination = NULL; + _cleanup_free_ char *sresolved = NULL, *dresolved = NULL; + char *s = NULL, *d = NULL; + bool rbind = true, ignore_enoent = false; + + r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); + if (r == 0) + break; + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue); + return 0; + } + + r = unit_full_printf(u, source, &sresolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolved unit specifiers in \"%s\", ignoring: %m", source); + continue; + } + + s = sresolved; + if (s[0] == '-') { + ignore_enoent = true; + s++; + } + + r = path_simplify_and_warn(s, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + continue; + + /* Optionally, the destination is specified. */ + if (p && p[-1] == ':') { + r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue); + return 0; + } + if (r == 0) { + log_syntax(unit, LOG_ERR, filename, line, 0, "Missing argument after ':', ignoring: %s", s); + continue; + } + + r = unit_full_printf(u, destination, &dresolved); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to resolved specifiers in \"%s\", ignoring: %m", destination); + continue; + } + + r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + continue; + + d = dresolved; + + /* Optionally, there's also a short option string specified */ + if (p && p[-1] == ':') { + _cleanup_free_ char *options = NULL; + + r = extract_first_word(&p, &options, NULL, EXTRACT_QUOTES); + if (r == -ENOMEM) + return log_oom(); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s: %s", lvalue, rvalue); + return 0; + } + + if (isempty(options) || streq(options, "rbind")) + rbind = true; + else if (streq(options, "norbind")) + rbind = false; + else { + log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid option string, ignoring setting: %s", options); + continue; + } + } + } else + d = s; + + r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts, + &(BindMount) { + .source = s, + .destination = d, + .read_only = !!strstr(lvalue, "ReadOnly"), + .recursive = rbind, + .ignore_enoent = ignore_enoent, + }); + if (r < 0) + return log_oom(); + } + + return 0; +} + +int config_parse_job_timeout_sec( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = data; + usec_t usec; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = parse_sec_fix_0(rvalue, &usec); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse JobTimeoutSec= parameter, ignoring: %s", rvalue); + return 0; + } + + /* If the user explicitly changed JobTimeoutSec= also change JobRunningTimeoutSec=, for compatibility with old + * versions. If JobRunningTimeoutSec= was explicitly set, avoid this however as whatever the user picked should + * count. */ + + if (!u->job_running_timeout_set) + u->job_running_timeout = usec; + + u->job_timeout = usec; + + return 0; +} + +int config_parse_job_running_timeout_sec( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Unit *u = data; + usec_t usec; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + r = parse_sec_fix_0(rvalue, &usec); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse JobRunningTimeoutSec= parameter, ignoring: %s", rvalue); + return 0; + } + + u->job_running_timeout = usec; + u->job_running_timeout_set = true; + + return 0; +} + +int config_parse_emergency_action( + const char* unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + Manager *m = NULL; + EmergencyAction *x = data; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(data); + + if (unit) + m = ((Unit*) userdata)->manager; + else + m = data; + + r = parse_emergency_action(rvalue, MANAGER_IS_SYSTEM(m), x); + if (r < 0) { + if (r == -EOPNOTSUPP && MANAGER_IS_USER(m)) { + /* Compat mode: remove for systemd 241. */ + + log_syntax(unit, LOG_INFO, filename, line, r, + "%s= in user mode specified as \"%s\", using \"exit-force\" instead.", + lvalue, rvalue); + *x = EMERGENCY_ACTION_EXIT_FORCE; + return 0; + } + + if (r == -EOPNOTSUPP) + log_syntax(unit, LOG_ERR, filename, line, r, + "%s= specified as %s mode action, ignoring: %s", + lvalue, MANAGER_IS_SYSTEM(m) ? "user" : "system", rvalue); + else + log_syntax(unit, LOG_ERR, filename, line, r, + "Failed to parse %s=, ignoring: %s", lvalue, rvalue); + return 0; + } + + return 0; +} + +int config_parse_pid_file( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + _cleanup_free_ char *k = NULL, *n = NULL; + Unit *u = userdata; + char **s = data; + const char *e; + int r; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(u); + + if (isempty(rvalue)) { + /* An empty assignment removes already set value. */ + *s = mfree(*s); + return 0; + } + + r = unit_full_printf(u, rvalue, &k); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue); + return 0; + } + + /* If this is a relative path make it absolute by prefixing the /run */ + n = path_make_absolute(k, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]); + if (!n) + return log_oom(); + + /* Check that the result is a sensible path */ + r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue); + if (r < 0) + return r; + + e = path_startswith(n, "/var/run/"); + if (e) { + char *z; + + z = strjoin("/run/", e); + if (!z) + return log_oom(); + + log_syntax(unit, LOG_NOTICE, filename, line, 0, "PIDFile= references path below legacy directory /var/run/, updating %s → %s; please update the unit file accordingly.", n, z); + + free_and_replace(*s, z); + } else + free_and_replace(*s, n); + + return 0; +} + +int config_parse_exit_status( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + int *exit_status = data, r; + uint8_t u; + + assert(filename); + assert(lvalue); + assert(rvalue); + assert(exit_status); + + if (isempty(rvalue)) { + *exit_status = -1; + return 0; + } + + r = safe_atou8(rvalue, &u); + if (r < 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse exit status '%s', ignoring: %m", rvalue); + return 0; + } + + *exit_status = u; + return 0; +} + +int config_parse_disable_controllers( + const char *unit, + const char *filename, + unsigned line, + const char *section, + unsigned section_line, + const char *lvalue, + int ltype, + const char *rvalue, + void *data, + void *userdata) { + + int r; + CGroupContext *c = data; + CGroupMask disabled_mask; + + /* 1. If empty, make all controllers eligible for use again. + * 2. If non-empty, merge all listed controllers, space separated. */ + + if (isempty(rvalue)) { + c->disable_controllers = 0; + return 0; + } + + r = cg_mask_from_string(rvalue, &disabled_mask); + if (r < 0 || disabled_mask <= 0) { + log_syntax(unit, LOG_ERR, filename, line, r, "Invalid cgroup string: %s, ignoring", rvalue); + return 0; + } + + c->disable_controllers |= disabled_mask; + + return 0; +} + +#define FOLLOW_MAX 8 + +static int open_follow(char **filename, FILE **_f, Set *names, char **_final) { + char *id = NULL; + unsigned c = 0; + int fd, r; + FILE *f; + + 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_simplify(*filename, false); + + /* 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 = basename(*filename); + if (unit_name_is_valid(name, UNIT_NAME_ANY)) { + + id = set_get(names, name); + if (!id) { + id = strdup(name); + if (!id) + return -ENOMEM; + + r = set_consume(names, id); + if (r < 0) + return r; + } + } + + /* Try to open the file name, but don't if its a symlink */ + fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); + if (fd >= 0) + break; + + if (errno != ELOOP) + return -errno; + + /* Hmm, so this is a symlink. Let's read the name, and follow it manually */ + r = readlink_and_make_absolute(*filename, &target); + if (r < 0) + return r; + + free_and_replace(*filename, target); + } + + f = fdopen(fd, "r"); + if (!f) { + safe_close(fd); + return -errno; + } + + *_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 */ + r = unit_merge_by_name(*u, k); + if (r < 0) { + Unit *other; + + /* Hmm, we couldn't merge the other unit into + * ours? Then let's try it the other way + * round */ + + /* If the symlink name we are looking at is unit template, then + we must search for instance of this template */ + if (unit_name_is_valid(k, UNIT_NAME_TEMPLATE) && (*u)->instance) { + _cleanup_free_ char *instance = NULL; + + r = unit_name_replace_instance(k, (*u)->instance, &instance); + if (r < 0) + return r; + + other = manager_get_unit((*u)->manager, instance); + } else + other = manager_get_unit((*u)->manager, k); + + free(k); + + if (other) { + r = unit_merge(other, *u); + if (r >= 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 int load_from_path(Unit *u, const char *path) { + _cleanup_set_free_free_ Set *symlink_names = NULL; + _cleanup_fclose_ FILE *f = NULL; + _cleanup_free_ char *filename = NULL; + char *id = NULL; + Unit *merged; + struct stat st; + int r; + + assert(u); + assert(path); + + symlink_names = set_new(&string_hash_ops); + if (!symlink_names) + return -ENOMEM; + + if (path_is_absolute(path)) { + + filename = strdup(path); + if (!filename) + return -ENOMEM; + + r = open_follow(&filename, &f, symlink_names, &id); + if (r < 0) { + filename = mfree(filename); + if (r != -ENOENT) + return r; + } + + } else { + char **p; + + STRV_FOREACH(p, u->manager->lookup_paths.search_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 */ + filename = path_make_absolute(path, *p); + if (!filename) + return -ENOMEM; + + if (u->manager->unit_path_cache && + !set_get(u->manager->unit_path_cache, filename)) + r = -ENOENT; + else + r = open_follow(&filename, &f, symlink_names, &id); + if (r >= 0) + break; + + /* ENOENT means that the file is missing or is a dangling symlink. + * ENOTDIR means that one of paths we expect to be is a directory + * is not a directory, we should just ignore that. + * EACCES means that the directory or file permissions are wrong. + */ + if (r == -EACCES) + log_debug_errno(r, "Cannot access \"%s\": %m", filename); + else if (!IN_SET(r, -ENOENT, -ENOTDIR)) + return r; + + filename = mfree(filename); + /* Empty the symlink names for the next run */ + set_clear_free(symlink_names); + } + } + + if (!filename) + /* Hmm, no suitable file found? */ + return 0; + + if (!unit_type_may_alias(u->type) && set_size(symlink_names) > 1) { + log_unit_warning(u, "Unit type of %s does not support alias names, refusing loading via symlink.", u->id); + return -ELOOP; + } + + merged = u; + r = merge_by_names(&merged, symlink_names, id); + if (r < 0) + return r; + + if (merged != u) { + u->load_state = UNIT_MERGED; + return 0; + } + + if (fstat(fileno(f), &st) < 0) + return -errno; + + if (null_or_empty(&st)) { + u->load_state = UNIT_MASKED; + u->fragment_mtime = 0; + } else { + u->load_state = UNIT_LOADED; + u->fragment_mtime = timespec_load(&st.st_mtim); + + /* Now, parse the file contents */ + r = config_parse(u->id, filename, f, + UNIT_VTABLE(u)->sections, + config_item_perf_lookup, load_fragment_gperf_lookup, + CONFIG_PARSE_ALLOW_INCLUDE, u); + if (r < 0) + return r; + } + + free_and_replace(u->fragment_path, filename); + + if (u->source_path) { + if (stat(u->source_path, &st) >= 0) + u->source_mtime = timespec_load(&st.st_mtim); + else + u->source_mtime = 0; + } + + return 0; +} + +int unit_load_fragment(Unit *u) { + int r; + Iterator i; + const char *t; + + assert(u); + assert(u->load_state == UNIT_STUB); + assert(u->id); + + if (u->transient) { + u->load_state = UNIT_LOADED; + return 0; + } + + /* 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 */ + r = load_from_path(u, u->id); + if (r < 0) + return r; + + /* Try to find an alias we can load this with */ + if (u->load_state == UNIT_STUB) { + SET_FOREACH(t, u->names, i) { + + if (t == u->id) + continue; + + r = load_from_path(u, t); + if (r < 0) + return r; + + if (u->load_state != UNIT_STUB) + break; + } + } + + /* And now, try looking for it under the suggested (originally linked) path */ + if (u->load_state == UNIT_STUB && u->fragment_path) { + + r = load_from_path(u, u->fragment_path); + if (r < 0) + return r; + + if (u->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. */ + u->fragment_path = mfree(u->fragment_path); + } + + /* Look for a template */ + if (u->load_state == UNIT_STUB && u->instance) { + _cleanup_free_ char *k = NULL; + + r = unit_name_template(u->id, &k); + if (r < 0) + return r; + + r = load_from_path(u, k); + if (r < 0) { + if (r == -ENOEXEC) + log_unit_notice(u, "Unit configuration has fatal error, unit will not be started."); + return r; + } + + if (u->load_state == UNIT_STUB) { + SET_FOREACH(t, u->names, i) { + _cleanup_free_ char *z = NULL; + + if (t == u->id) + continue; + + r = unit_name_template(t, &z); + if (r < 0) + return r; + + r = load_from_path(u, z); + if (r < 0) + return r; + + if (u->load_state != UNIT_STUB) + break; + } + } + } + + return 0; +} + +void unit_dump_config_items(FILE *f) { + static const struct { + const ConfigParserCallback callback; + const char *rvalue; + } table[] = { + { config_parse_warn_compat, "NOTSUPPORTED" }, + { config_parse_int, "INTEGER" }, + { config_parse_unsigned, "UNSIGNED" }, + { config_parse_iec_size, "SIZE" }, + { config_parse_iec_uint64, "SIZE" }, + { config_parse_si_size, "SIZE" }, + { config_parse_bool, "BOOLEAN" }, + { config_parse_string, "STRING" }, + { config_parse_path, "PATH" }, + { config_parse_unit_path_printf, "PATH" }, + { config_parse_strv, "STRING [...]" }, + { config_parse_exec_nice, "NICE" }, + { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" }, + { config_parse_exec_io_class, "IOCLASS" }, + { config_parse_exec_io_priority, "IOPRIORITY" }, + { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" }, + { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" }, + { config_parse_exec_cpu_affinity, "CPUAFFINITY" }, + { config_parse_mode, "MODE" }, + { config_parse_unit_env_file, "FILE" }, + { config_parse_exec_output, "OUTPUT" }, + { config_parse_exec_input, "INPUT" }, + { config_parse_log_facility, "FACILITY" }, + { config_parse_log_level, "LEVEL" }, + { config_parse_exec_secure_bits, "SECUREBITS" }, + { config_parse_capability_set, "BOUNDINGSET" }, + { config_parse_rlimit, "LIMIT" }, + { config_parse_unit_deps, "UNIT [...]" }, + { config_parse_exec, "PATH [ARGUMENT [...]]" }, + { config_parse_service_type, "SERVICETYPE" }, + { config_parse_service_restart, "SERVICERESTART" }, + { config_parse_kill_mode, "KILLMODE" }, + { config_parse_signal, "SIGNAL" }, + { config_parse_socket_listen, "SOCKET [...]" }, + { config_parse_socket_bind, "SOCKETBIND" }, + { config_parse_socket_bindtodevice, "NETWORKINTERFACE" }, + { config_parse_sec, "SECONDS" }, + { config_parse_nsec, "NANOSECONDS" }, + { config_parse_namespace_path_strv, "PATH [...]" }, + { config_parse_bind_paths, "PATH[:PATH[:OPTIONS]] [...]" }, + { config_parse_unit_requires_mounts_for, "PATH [...]" }, + { config_parse_exec_mount_flags, "MOUNTFLAG [...]" }, + { config_parse_unit_string_printf, "STRING" }, + { config_parse_trigger_unit, "UNIT" }, + { config_parse_timer, "TIMER" }, + { config_parse_path_spec, "PATH" }, + { config_parse_notify_access, "ACCESS" }, + { config_parse_ip_tos, "TOS" }, + { config_parse_unit_condition_path, "CONDITION" }, + { config_parse_unit_condition_string, "CONDITION" }, + { config_parse_unit_condition_null, "CONDITION" }, + { config_parse_unit_slice, "SLICE" }, + { config_parse_documentation, "URL" }, + { config_parse_service_timeout, "SECONDS" }, + { config_parse_emergency_action, "ACTION" }, + { config_parse_set_status, "STATUS" }, + { config_parse_service_sockets, "SOCKETS" }, + { config_parse_environ, "ENVIRON" }, +#if HAVE_SECCOMP + { config_parse_syscall_filter, "SYSCALLS" }, + { config_parse_syscall_archs, "ARCHS" }, + { config_parse_syscall_errno, "ERRNO" }, + { config_parse_address_families, "FAMILIES" }, + { config_parse_restrict_namespaces, "NAMESPACES" }, +#endif + { config_parse_cpu_shares, "SHARES" }, + { config_parse_cg_weight, "WEIGHT" }, + { config_parse_memory_limit, "LIMIT" }, + { config_parse_device_allow, "DEVICE" }, + { config_parse_device_policy, "POLICY" }, + { config_parse_io_limit, "LIMIT" }, + { config_parse_io_device_weight, "DEVICEWEIGHT" }, + { config_parse_io_device_latency, "DEVICELATENCY" }, + { config_parse_blockio_bandwidth, "BANDWIDTH" }, + { config_parse_blockio_weight, "WEIGHT" }, + { config_parse_blockio_device_weight, "DEVICEWEIGHT" }, + { config_parse_long, "LONG" }, + { config_parse_socket_service, "SERVICE" }, +#if HAVE_SELINUX + { config_parse_exec_selinux_context, "LABEL" }, +#endif + { config_parse_job_mode, "MODE" }, + { config_parse_job_mode_isolate, "BOOLEAN" }, + { config_parse_personality, "PERSONALITY" }, + }; + + const char *prev = NULL; + const char *i; + + assert(f); + + NULSTR_FOREACH(i, load_fragment_gperf_nulstr) { + const char *rvalue = "OTHER", *lvalue; + const ConfigPerfItem *p; + size_t prefix_len; + const char *dot; + unsigned j; + + assert_se(p = load_fragment_gperf_lookup(i, strlen(i))); + + /* Hide legacy settings */ + if (p->parse == config_parse_warn_compat && + p->ltype == DISABLED_LEGACY) + continue; + + for (j = 0; j < ELEMENTSOF(table); j++) + if (p->parse == table[j].callback) { + rvalue = table[j].rvalue; + break; + } + + dot = strchr(i, '.'); + lvalue = dot ? dot + 1 : i; + prefix_len = dot-i; + + if (dot) + if (!prev || !strneq(prev, i, prefix_len+1)) { + if (prev) + fputc('\n', f); + + fprintf(f, "[%.*s]\n", (int) prefix_len, i); + } + + fprintf(f, "%s=%s\n", lvalue, rvalue); + prev = i; + } +} |