#include <linux/oom.h>

#include <assert.h>

#include <errno.h>

#include <string.h>

#include <unistd.h>

#include <fcntl.h>

#include <sched.h>

#include <sys/prctl.h>

#include <sys/mount.h>

#include <linux/fs.h>

#include <sys/stat.h>

#include "unit.h"

#include "strv.h"

#include "conf-parser.h"

#include "load-fragment.h"

#include "log.h"

#include "ioprio.h"

#include "securebits.h"

#include "missing.h"

#include "unit-name.h"

#include "bus-errors.h"

#ifndef HAVE_SYSV_COMPAT

static int config_parse_warn_compat(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue);

return 0;

}

#endif

static int config_parse_deps(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

UnitDependency d = PTR_TO_UINT(data);

Unit *u = userdata;

char *w;

size_t l;

char *state;

assert(filename);

assert(lvalue);

assert(rvalue);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t, *k;

int r;

if (!(t = strndup(w, l)))

return -ENOMEM;

k = unit_name_printf(u, t);

free(t);

if (!k)

return -ENOMEM;

r = unit_add_dependency_by_name(u, d, k, NULL, true);

if (r < 0) {

log_error("Failed to add dependency on %s, ignoring: %s", k, strerror(-r));

free(k);

return 0;

}

free(k);

}

return 0;

}

static int config_parse_names(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = userdata;

char *w;

size_t l;

char *state;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t, *k;

int r;

if (!(t = strndup(w, l)))

return -ENOMEM;

k = unit_name_printf(u, t);

free(t);

if (!k)

return -ENOMEM;

r = unit_merge_by_name(u, k);

if (r < 0) {

log_error("Failed to add name %s, ignoring: %s", k, strerror(-r));

free(k);

return 0;

}

free(k);

}

return 0;

}

static int config_parse_string_printf(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = userdata;

char **s = data;

char *k;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(s);

assert(u);

if (!(k = unit_full_printf(u, rvalue)))

return -ENOMEM;

free(*s);

if (*k)

*s = k;

else {

free(k);

*s = NULL;

}

return 0;

}

static int config_parse_listen(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

SocketPort *p;

Socket *s;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

s = (Socket*) data;

if (!(p = new0(SocketPort, 1)))

return -ENOMEM;

if (streq(lvalue, "ListenFIFO")) {

p->type = SOCKET_FIFO;

if (!(p->path = strdup(rvalue))) {

free(p);

return -ENOMEM;

}

path_kill_slashes(p->path);

} else {

p->type = SOCKET_SOCKET;

if (socket_address_parse(&p->address, rvalue) < 0) {

log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);

free(p);

return 0;

}

if (streq(lvalue, "ListenStream"))

p->address.type = SOCK_STREAM;

else if (streq(lvalue, "ListenDatagram"))

p->address.type = SOCK_DGRAM;

else {

assert(streq(lvalue, "ListenSequentialPacket"));

p->address.type = SOCK_SEQPACKET;

}

if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {

log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);

free(p);

return 0;

}

}

p->fd = -1;

LIST_PREPEND(SocketPort, port, s->ports, p);

return 0;

}

static int config_parse_socket_bind(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Socket *s;

SocketAddressBindIPv6Only b;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

s = (Socket*) data;

if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {

int r;

if ((r = parse_boolean(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);

return 0;

}

s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;

} else

s->bind_ipv6_only = b;

return 0;

}

static int config_parse_nice(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int priority;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atoi(rvalue, &priority) < 0) {

log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);

return 0;

}

if (priority < PRIO_MIN || priority >= PRIO_MAX) {

log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);

return 0;

}

c->nice = priority;

c->nice_set = true;

return 0;

}

static int config_parse_oom_score_adjust(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int oa;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atoi(rvalue, &oa) < 0) {

log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);

return 0;

}

if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {

log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);

return 0;

}

c->oom_score_adjust = oa;

c->oom_score_adjust_set = true;

return 0;

}

static int config_parse_mode(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

mode_t *m = data;

long l;

char *x = NULL;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

errno = 0;

l = strtol(rvalue, &x, 8);

if (!x || *x || errno) {

log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);

return 0;

}

if (l < 0000 || l > 07777) {

log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);

return 0;

}

*m = (mode_t) l;

return 0;

}

static int config_parse_exec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecCommand **e = data, *nce;

char *path, **n;

unsigned k;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(e);

/* We accept an absolute path as first argument, or

for (;;) {

char *w;

size_t l;

char *state;

bool honour_argv0 = false, ignore = false;

path = NULL;

nce = NULL;

n = NULL;

rvalue += strspn(rvalue, WHITESPACE);

if (rvalue[0] == 0)

break;

if (rvalue[0] == '-') {

ignore = true;

rvalue ++;

}

if (rvalue[0] == '@') {

honour_argv0 = true;

rvalue ++;

}

if (*rvalue != '/') {

log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue);

return 0;

}

k = 0;

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

if (strncmp(w, ";", MAX(l, 1U)) == 0)

break;

k++;

}

if (!(n = new(char*, k + !honour_argv0)))

return -ENOMEM;

k = 0;

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

if (strncmp(w, ";", MAX(l, 1U)) == 0)

break;

if (honour_argv0 && w == rvalue) {

assert(!path);

if (!(path = cunescape_length(w, l)))

goto fail;

} else {

if (!(n[k++] = cunescape_length(w, l)))

goto fail;

}

}

n[k] = NULL;

if (!n[0]) {

log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);

strv_free(n);

return 0;

}

if (!path)

if (!(path = strdup(n[0])))

goto fail;

assert(path_is_absolute(path));

if (!(nce = new0(ExecCommand, 1)))

goto fail;

nce->argv = n;

nce->path = path;

nce->ignore = ignore;

path_kill_slashes(nce->path);

exec_command_append_list(e, nce);

rvalue = state;

}

return 0;

fail:

n[k] = NULL;

strv_free(n);

free(path);

free(nce);

return -ENOMEM;

}

static int config_parse_usec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

usec_t *usec = data;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (parse_usec(rvalue, usec) < 0) {

log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);

return 0;

}

return 0;

}

static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");

static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");

static int config_parse_bindtodevice(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Socket *s = data;

char *n;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (rvalue[0] && !streq(rvalue, "*")) {

if (!(n = strdup(rvalue)))

return -ENOMEM;

} else

n = NULL;

free(s->bind_to_device);

s->bind_to_device = n;

return 0;

}

static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");

static DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");

static int config_parse_facility(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *o = data, x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((x = log_facility_from_string(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);

return 0;

}

*o = LOG_MAKEPRI(x, LOG_PRI(*o));

return 0;

}

static int config_parse_level(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *o = data, x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((x = log_level_from_string(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);

return 0;

}

*o = LOG_MAKEPRI(LOG_FAC(*o), x);

return 0;

}

static int config_parse_io_class(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((x = ioprio_class_from_string(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);

return 0;

}

c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));

c->ioprio_set = true;

return 0;

}

static int config_parse_io_priority(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int i;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {

log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);

return 0;

}

c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);

c->ioprio_set = true;

return 0;

}

static int config_parse_cpu_sched_policy(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((x = sched_policy_from_string(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);

return 0;

}

c->cpu_sched_policy = x;

c->cpu_sched_set = true;

return 0;

}

static int config_parse_cpu_sched_prio(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int i;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

/* On Linux RR/FIFO have the same range */

if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {

log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);

return 0;

}

c->cpu_sched_priority = i;

c->cpu_sched_set = true;

return 0;

}

static int config_parse_cpu_affinity(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

char *w;

size_t l;

char *state;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t;

int r;

unsigned cpu;

if (!(t = strndup(w, l)))

return -ENOMEM;

r = safe_atou(t, &cpu);

free(t);

if (!(c->cpuset))

if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus)))

return -ENOMEM;

if (r < 0 || cpu >= c->cpuset_ncpus) {

log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue);

return 0;

}

CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);

}

return 0;

}

static int config_parse_capabilities(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

cap_t cap;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (!(cap = cap_from_text(rvalue))) {

if (errno == ENOMEM)

return -ENOMEM;

log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);

return 0;

}

if (c->capabilities)

cap_free(c->capabilities);

c->capabilities = cap;

return 0;

}

static int config_parse_secure_bits(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

char *w;

size_t l;

char *state;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

if (first_word(w, "keep-caps"))

c->secure_bits |= SECURE_KEEP_CAPS;

else if (first_word(w, "keep-caps-locked"))

c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;

else if (first_word(w, "no-setuid-fixup"))

c->secure_bits |= SECURE_NO_SETUID_FIXUP;

else if (first_word(w, "no-setuid-fixup-locked"))

c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;

else if (first_word(w, "noroot"))

c->secure_bits |= SECURE_NOROOT;

else if (first_word(w, "noroot-locked"))

c->secure_bits |= SECURE_NOROOT_LOCKED;

else {

log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue);

return 0;

}

}

return 0;

}

static int config_parse_bounding_set(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

char *w;

size_t l;

char *state;

bool invert = false;

uint64_t sum = 0;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (rvalue[0] == '~') {

invert = true;

rvalue++;

}

/* Note that we store this inverted internally, since the

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t;

int r;

cap_value_t cap;

if (!(t = strndup(w, l)))

return -ENOMEM;

r = cap_from_name(t, &cap);

free(t);

if (r < 0) {

log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue);

return 0;

}

sum |= ((uint64_t) 1ULL) << (uint64_t) cap;

}

if (invert)

c->capability_bounding_set_drop |= sum;

else

c->capability_bounding_set_drop |= ~sum;

return 0;

}

static int config_parse_timer_slack_nsec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

unsigned long u;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atolu(rvalue, &u) < 0) {

log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue);

return 0;

}

c->timer_slack_nsec = u;

return 0;

}

static int config_parse_limit(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

struct rlimit **rl = data;

unsigned long long u;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atollu(rvalue, &u) < 0) {

log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);

return 0;

}

if (!*rl)

if (!(*rl = new(struct rlimit, 1)))

return -ENOMEM;

(*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;

return 0;

}

static int config_parse_cgroup(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = userdata;

char *w;

size_t l;

char *state;

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t;

int r;

if (!(t = cunescape_length(w, l)))

return -ENOMEM;

r = unit_add_cgroup_from_text(u, t);

free(t);

if (r < 0) {

log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue);

return 0;

}

}

return 0;

}

#ifdef HAVE_SYSV_COMPAT

static int config_parse_sysv_priority(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *priority = data;

int i;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atoi(rvalue, &i) < 0 || i < 0) {

log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);

return 0;

}

*priority = (int) i;

return 0;

}

#endif

static int config_parse_fsck_passno(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *passno = data;

int i;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (safe_atoi(rvalue, &i) || i < 0) {

log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue);

return 0;

}

*passno = (int) i;

return 0;

}

static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");

static int config_parse_kill_signal(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *sig = data;

int r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(sig);

if ((r = signal_from_string_try_harder(rvalue)) <= 0) {

log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);

return 0;

}

*sig = r;

return 0;

}

static int config_parse_mount_flags(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

char *w;

size_t l;

char *state;

unsigned long flags = 0;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

if (strncmp(w, "shared", MAX(l, 6U)) == 0)

flags |= MS_SHARED;

else if (strncmp(w, "slave", MAX(l, 5U)) == 0)

flags |= MS_SLAVE;

else if (strncmp(w, "private", MAX(l, 7U)) == 0)

flags |= MS_PRIVATE;

else {

log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);

return 0;

}

}

c->mount_flags = flags;

return 0;

}

static int config_parse_timer(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Timer *t = data;

usec_t u;

TimerValue *v;

TimerBase b;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((b = timer_base_from_string(lvalue)) < 0) {

log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);

return 0;

}

if (parse_usec(rvalue, &u) < 0) {

log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);

return 0;

}

if (!(v = new0(TimerValue, 1)))

return -ENOMEM;

v->base = b;

v->value = u;

LIST_PREPEND(TimerValue, value, t->values, v);

return 0;

}

static int config_parse_timer_unit(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Timer *t = data;

int r;

DBusError error;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

dbus_error_init(&error);

if (endswith(rvalue, ".timer")) {

log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);

return 0;

}

if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) {

log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));

dbus_error_free(&error);

return 0;

}

return 0;

}

static int config_parse_path_spec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Path *p = data;

PathSpec *s;

PathType b;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((b = path_type_from_string(lvalue)) < 0) {

log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);

return 0;

}

if (!path_is_absolute(rvalue)) {

log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);

return 0;

}

if (!(s = new0(PathSpec, 1)))

return -ENOMEM;

if (!(s->path = strdup(rvalue))) {

free(s);

return -ENOMEM;

}

path_kill_slashes(s->path);

s->type = b;

s->inotify_fd = -1;

LIST_PREPEND(PathSpec, spec, p->specs, s);

return 0;

}

static int config_parse_path_unit(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Path *t = data;

int r;

DBusError error;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

dbus_error_init(&error);

if (endswith(rvalue, ".path")) {

log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);

return 0;

}

if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {

log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));

dbus_error_free(&error);

return 0;

}

return 0;

}

static int config_parse_socket_service(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Socket *s = data;

int r;

DBusError error;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

dbus_error_init(&error);

if (!endswith(rvalue, ".service")) {

log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue);

return 0;

}

if ((r = manager_load_unit(s->meta.manager, rvalue, NULL, &error, (Unit**) &s->service)) < 0) {

log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));

dbus_error_free(&error);

return 0;

}

return 0;

}

static int config_parse_service_sockets(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Service *s = data;

int r;

DBusError error;

char *state, *w;

size_t l;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

dbus_error_init(&error);

FOREACH_WORD_QUOTED(w, l, rvalue, state) {

char *t;

Unit *sock;

if (!(t = strndup(w, l)))

return -ENOMEM;

if (!endswith(t, ".socket")) {

log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue);

free(t);

continue;

}

r = manager_load_unit(s->meta.manager, t, NULL, &error, &sock);

free(t);

if (r < 0) {

log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));

dbus_error_free(&error);

continue;

}

if ((r = set_ensure_allocated(&s->configured_sockets, trivial_hash_func, trivial_compare_func)) < 0)

return r;

if ((r = set_put(s->configured_sockets, sock)) < 0)

return r;

}

return 0;

}

static int config_parse_env_file(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

char ***env = data, **k;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if (!path_is_absolute(rvalue[0] == '-' ? rvalue + 1 : rvalue)) {

log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, rvalue);

return 0;

}

if (!(k = strv_append(*env, rvalue)))

return -ENOMEM;

strv_free(*env);

*env = k;

return 0;

}

static int config_parse_ip_tos(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int *ip_tos = data, x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((x = ip_tos_from_string(rvalue)) < 0)

if (safe_atoi(rvalue, &x) < 0) {

log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);

return 0;

}

*ip_tos = x;

return 0;

}

static int config_parse_condition_path(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = data;

bool trigger, negate;

Condition *c;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((trigger = rvalue[0] == '|'))

rvalue++;

if ((negate = rvalue[0] == '!'))

rvalue++;

if (!path_is_absolute(rvalue)) {

log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue);

return 0;

}

if (!(c = condition_new(streq(lvalue, "ConditionPathExists") ? CONDITION_PATH_EXISTS : CONDITION_DIRECTORY_NOT_EMPTY,

rvalue, trigger, negate)))

return -ENOMEM;

LIST_PREPEND(Condition, conditions, u->meta.conditions, c);

return 0;

}

static int config_parse_condition_kernel(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = data;

bool trigger, negate;

Condition *c;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((trigger = rvalue[0] == '|'))

rvalue++;

if ((negate = rvalue[0] == '!'))

rvalue++;

if (!(c = condition_new(CONDITION_KERNEL_COMMAND_LINE, rvalue, trigger, negate)))

return -ENOMEM;

LIST_PREPEND(Condition, conditions, u->meta.conditions, c);

return 0;

}

static int config_parse_condition_virt(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = data;

bool trigger, negate;

Condition *c;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((trigger = rvalue[0] == '|'))

rvalue++;

if ((negate = rvalue[0] == '!'))

rvalue++;

if (!(c = condition_new(CONDITION_VIRTUALIZATION, rvalue, trigger, negate)))

return -ENOMEM;

LIST_PREPEND(Condition, conditions, u->meta.conditions, c);

return 0;

}

static int config_parse_condition_null(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Unit *u = data;

Condition *c;

bool trigger, negate;

int b;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

if ((trigger = rvalue[0] == '|'))

rvalue++;

if ((negate = rvalue[0] == '!'))

rvalue++;

if ((b = parse_boolean(rvalue)) < 0) {

log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);

return 0;

}

if (!b)

negate = !negate;

if (!(c = condition_new(CONDITION_NULL, NULL, trigger, negate)))

return -ENOMEM;

LIST_PREPEND(Condition, conditions, u->meta.conditions, c);

return 0;

}

static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");

#define FOLLOW_MAX 8

static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {

unsigned c = 0;

int fd, r;

FILE *f;

char *id = NULL;

assert(filename);

assert(*filename);

assert(_f);

assert(names);

/* This will update the filename pointer if the loaded file is

for (;;) {

char *target, *name;

if (c++ >= FOLLOW_MAX)

return -ELOOP;

path_kill_slashes(*filename);

/* Add the file name we are currently looking at to

name = file_name_from_path(*filename);

if (unit_name_is_valid(name, false)) {

if (!(id = set_get(names, name))) {

if (!(id = strdup(name)))

return -ENOMEM;

if ((r = set_put(names, id)) < 0) {

free(id);

return r;

}

}

}

/* Try to open the file name, but don't if its a symlink */

if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)

break;

if (errno != ELOOP)

return -errno;

/* Hmm, so this is a symlink. Let's read the name, and follow it manually */

if ((r = readlink_and_make_absolute(*filename, &target)) < 0)

return r;

free(*filename);

*filename = target;

}

if (!(f = fdopen(fd, "re"))) {

r = -errno;

close_nointr_nofail(fd);

return r;

}

*_f = f;

*_final = id;

return 0;

}

static int merge_by_names(Unit **u, Set *names, const char *id) {

char *k;

int r;

assert(u);

assert(*u);

assert(names);

/* Let's try to add in all symlink names we found */

while ((k = set_steal_first(names))) {

/* First try to merge in the other name into our

if ((r = unit_merge_by_name(*u, k)) < 0) {

Unit *other;

/* Hmm, we couldn't merge the other unit into

other = manager_get_unit((*u)->meta.manager, k);

free(k);

if (other)

if ((r = unit_merge(other, *u)) >= 0) {

*u = other;

return merge_by_names(u, names, NULL);

}

return r;

}

if (id == k)

unit_choose_id(*u, id);

free(k);

}

return 0;

}

static void dump_items(FILE *f, const ConfigItem *items) {

const ConfigItem *i;

const char *prev_section = NULL;

bool not_first = false;

struct {

ConfigParserCallback callback;

const char *rvalue;

} table[] = {

{ config_parse_int, "INTEGER" },

{ config_parse_unsigned, "UNSIGNED" },

{ config_parse_size, "SIZE" },

{ config_parse_bool, "BOOLEAN" },

{ config_parse_string, "STRING" },

{ config_parse_path, "PATH" },

{ config_parse_strv, "STRING [...]" },

{ config_parse_nice, "NICE" },

{ config_parse_oom_score_adjust, "OOMSCOREADJUST" },

{ config_parse_io_class, "IOCLASS" },

{ config_parse_io_priority, "IOPRIORITY" },

{ config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },

{ config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },

{ config_parse_cpu_affinity, "CPUAFFINITY" },

{ config_parse_mode, "MODE" },

{ config_parse_env_file, "FILE" },

{ config_parse_output, "OUTPUT" },

{ config_parse_input, "INPUT" },

{ config_parse_facility, "FACILITY" },

{ config_parse_level, "LEVEL" },

{ config_parse_capabilities, "CAPABILITIES" },

{ config_parse_secure_bits, "SECUREBITS" },

{ config_parse_bounding_set, "BOUNDINGSET" },

{ config_parse_timer_slack_nsec, "TIMERSLACK" },

{ config_parse_limit, "LIMIT" },

{ config_parse_cgroup, "CGROUP [...]" },

{ config_parse_deps, "UNIT [...]" },

{ config_parse_names, "UNIT [...]" },

{ config_parse_exec, "PATH [ARGUMENT [...]]" },

{ config_parse_service_type, "SERVICETYPE" },

{ config_parse_service_restart, "SERVICERESTART" },

#ifdef HAVE_SYSV_COMPAT

{ config_parse_sysv_priority, "SYSVPRIORITY" },

#else

{ config_parse_warn_compat, "NOTSUPPORTED" },

#endif

{ config_parse_kill_mode, "KILLMODE" },

{ config_parse_kill_signal, "SIGNAL" },

{ config_parse_listen, "SOCKET [...]" },

{ config_parse_socket_bind, "SOCKETBIND" },

{ config_parse_bindtodevice, "NETWORKINTERFACE" },

{ config_parse_usec, "SECONDS" },

{ config_parse_path_strv, "PATH [...]" },

{ config_parse_mount_flags, "MOUNTFLAG [...]" },

{ config_parse_string_printf, "STRING" },

{ config_parse_timer, "TIMER" },

{ config_parse_timer_unit, "NAME" },

{ config_parse_path_spec, "PATH" },

{ config_parse_path_unit, "UNIT" },

{ config_parse_notify_access, "ACCESS" },

{ config_parse_ip_tos, "TOS" },

{ config_parse_condition_path, "CONDITION" },

{ config_parse_condition_kernel, "CONDITION" },

{ config_parse_condition_null, "CONDITION" },

{ config_parse_condition_virt, "CONDITION" },

};

assert(f);

assert(items);

for (i = items; i->lvalue; i++) {

unsigned j;

const char *rvalue = "OTHER";

if (!streq_ptr(i->section, prev_section)) {

if (!not_first)

not_first = true;

else

fputc('\n', f);

fprintf(f, "[%s]\n", i->section);

prev_section = i->section;

}

for (j = 0; j < ELEMENTSOF(table); j++)

if (i->parse == table[j].callback) {

rvalue = table[j].rvalue;

break;

}

fprintf(f, "%s=%s\n", i->lvalue, rvalue);

}

}

static int load_from_path(Unit *u, const char *path) {

static const char* const section_table[_UNIT_TYPE_MAX] = {

[UNIT_SERVICE] = "Service",

[UNIT_TIMER] = "Timer",

[UNIT_SOCKET] = "Socket",

[UNIT_TARGET] = "Target",

[UNIT_DEVICE] = "Device",

[UNIT_MOUNT] = "Mount",

[UNIT_AUTOMOUNT] = "Automount",

[UNIT_SNAPSHOT] = "Snapshot",

[UNIT_SWAP] = "Swap",

[UNIT_PATH] = "Path"

};

#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \

{ "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \

{ "RootDirectory", config_parse_path, &(context).root_directory, section }, \

{ "User", config_parse_string_printf, &(context).user, section }, \

{ "Group", config_parse_string_printf, &(context).group, section }, \

{ "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \

{ "Nice", config_parse_nice, &(context), section }, \

{ "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \

{ "IOSchedulingClass", config_parse_io_class, &(context), section }, \

{ "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \

{ "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \

{ "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \

{ "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \

{ "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \

{ "UMask", config_parse_mode, &(context).umask, section }, \

{ "Environment", config_parse_strv, &(context).environment, section }, \

{ "EnvironmentFile", config_parse_env_file, &(context).environment_files, section }, \

{ "StandardInput", config_parse_input, &(context).std_input, section }, \

{ "StandardOutput", config_parse_output, &(context).std_output, section }, \

{ "StandardError", config_parse_output, &(context).std_error, section }, \

{ "TTYPath", config_parse_path, &(context).tty_path, section }, \

{ "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \

{ "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \

{ "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \

{ "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \

{ "Capabilities", config_parse_capabilities, &(context), section }, \

{ "SecureBits", config_parse_secure_bits, &(context), section }, \

{ "CapabilityBoundingSet", config_parse_bounding_set, &(context), section }, \

{ "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \

{ "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \

{ "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \

{ "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \

{ "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \

{ "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \

{ "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \

{ "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \

{ "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \

{ "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \

{ "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \

{ "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \

{ "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \

{ "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \

{ "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \

{ "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \

{ "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \

{ "ControlGroup", config_parse_cgroup, u, section }, \

{ "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \

{ "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \

{ "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \

{ "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \

{ "MountFlags", config_parse_mount_flags, &(context), section }, \

{ "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \

{ "PAMName", config_parse_string_printf, &(context).pam_name, section }, \

{ "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \

{ "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }, \

{ "SendSIGKILL", config_parse_bool, &(context).send_sigkill, section }, \

{ "UtmpIdentifier", config_parse_string_printf, &(context).utmp_id, section }

const ConfigItem items[] = {

{ "Names", config_parse_names, u, "Unit" },

{ "Description", config_parse_string_printf, &u->meta.description, "Unit" },

{ "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },

{ "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },

{ "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },

{ "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },

{ "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },

{ "BindTo", config_parse_deps, UINT_TO_PTR(UNIT_BIND_TO), "Unit" },

{ "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },

{ "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },

{ "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },

{ "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },

{ "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },

{ "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },

{ "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },

{ "AllowIsolate", config_parse_bool, &u->meta.allow_isolate, "Unit" },

{ "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },

{ "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },

{ "ConditionPathExists", config_parse_condition_path, u, "Unit" },

{ "ConditionDirectoryNotEmpty", config_parse_condition_path, u, "Unit" },

{ "ConditionKernelCommandLine", config_parse_condition_kernel, u, "Unit" },

{ "ConditionVirtualization",config_parse_condition_virt, u, "Unit" },

{ "ConditionNull", config_parse_condition_null, u, "Unit" },

{ "PIDFile", config_parse_path, &u->service.pid_file, "Service" },

{ "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },

{ "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },

{ "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },

{ "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },

{ "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },

{ "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },

{ "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },

{ "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },

{ "Type", config_parse_service_type, &u->service.type, "Service" },

{ "Restart", config_parse_service_restart, &u->service.restart, "Service" },

{ "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },

{ "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },

{ "RemainAfterExit", config_parse_bool, &u->service.remain_after_exit, "Service" },

{ "GuessMainPID", config_parse_bool, &u->service.guess_main_pid, "Service" },

#ifdef HAVE_SYSV_COMPAT

{ "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },

#else

{ "SysVStartPriority", config_parse_warn_compat, NULL, "Service" },

#endif

{ "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },

{ "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },

{ "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },

{ "Sockets", config_parse_service_sockets, &u->service, "Service" },

{ "FsckPassNo", config_parse_fsck_passno, &u->service.fsck_passno, "Service" },

EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),

{ "ListenStream", config_parse_listen, &u->socket, "Socket" },

{ "ListenDatagram", config_parse_listen, &u->socket, "Socket" },

{ "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },

{ "ListenFIFO", config_parse_listen, &u->socket, "Socket" },

{ "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },

{ "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },

{ "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },

{ "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },

{ "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },

{ "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },

{ "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },

{ "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },

{ "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },

{ "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },

{ "Accept", config_parse_bool, &u->socket.accept, "Socket" },

{ "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" },

{ "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" },

{ "Priority", config_parse_int, &u->socket.priority, "Socket" },

{ "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" },

{ "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" },

{ "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" },

{ "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" },

{ "Mark", config_parse_int, &u->socket.mark, "Socket" },

{ "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" },

{ "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" },

{ "TCPCongestion", config_parse_string, &u->socket.tcp_congestion, "Socket" },

{ "Service", config_parse_socket_service, &u->socket, "Socket" },

EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),

{ "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },

{ "Where", config_parse_path, &u->mount.where, "Mount" },

{ "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },

{ "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },

{ "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },

{ "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" },

EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),

{ "Where", config_parse_path, &u->automount.where, "Automount" },

{ "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" },

{ "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },

{ "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },

{ "TimeoutSec", config_parse_usec, &u->swap.timeout_usec, "Swap" },

EXEC_CONTEXT_CONFIG_ITEMS(u->swap.exec_context, "Swap"),

{ "OnActiveSec", config_parse_timer, &u->timer, "Timer" },

{ "OnBootSec", config_parse_timer, &u->timer, "Timer" },

{ "OnStartupSec", config_parse_timer, &u->timer, "Timer" },

{ "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" },

{ "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" },

{ "Unit", config_parse_timer_unit, &u->timer, "Timer" },

{ "PathExists", config_parse_path_spec, &u->path, "Path" },

{ "PathChanged", config_parse_path_spec, &u->path, "Path" },

{ "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },

{ "Unit", config_parse_path_unit, &u->path, "Path" },

/* The [Install] section is ignored here. */

{ "Alias", NULL, NULL, "Install" },

{ "WantedBy", NULL, NULL, "Install" },

{ "Also", NULL, NULL, "Install" },

{ NULL, NULL, NULL, NULL }

};

#undef EXEC_CONTEXT_CONFIG_ITEMS

const char *sections[4];

int r;

Set *symlink_names;

FILE *f = NULL;

char *filename = NULL, *id = NULL;

Unit *merged;

struct stat st;

if (!u) {

/* Dirty dirty hack. */

dump_items((FILE*) path, items);

return 0;

}

assert(u);

assert(path);

sections[0] = "Unit";

sections[1] = section_table[u->meta.type];

sections[2] = "Install";

sections[3] = NULL;

if (!(symlink_names = set_new(string_hash_func, string_compare_func)))

return -ENOMEM;

if (path_is_absolute(path)) {

if (!(filename = strdup(path))) {

r = -ENOMEM;

goto finish;

}

if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {

free(filename);

filename = NULL;

if (r != -ENOENT)

goto finish;

}

} else {

char **p;

STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {

/* Instead of opening the path right away, we manually

if (!(filename = path_make_absolute(path, *p))) {

r = -ENOMEM;

goto finish;

}

if (u->meta.manager->unit_path_cache &&

!set_get(u->meta.manager->unit_path_cache, filename))

r = -ENOENT;

else

r = open_follow(&filename, &f, symlink_names, &id);

if (r < 0) {

char *sn;

free(filename);

filename = NULL;

if (r != -ENOENT)

goto finish;

/* Empty the symlink names for the next run */

while ((sn = set_steal_first(symlink_names)))

free(sn);

continue;

}

break;

}

}

if (!filename) {

/* Hmm, no suitable file found? */

r = 0;

goto finish;

}

merged = u;

if ((r = merge_by_names(&merged, symlink_names, id)) < 0)

goto finish;

if (merged != u) {

u->meta.load_state = UNIT_MERGED;

r = 0;

goto finish;

}

zero(st);

if (fstat(fileno(f), &st) < 0) {

r = -errno;

goto finish;

}

if (null_or_empty(&st))

u->meta.load_state = UNIT_MASKED;

else {

/* Now, parse the file contents */

if ((r = config_parse(filename, f, sections, items, false, u)) < 0)

goto finish;

u->meta.load_state = UNIT_LOADED;

}

free(u->meta.fragment_path);

u->meta.fragment_path = filename;

filename = NULL;

u->meta.fragment_mtime = timespec_load(&st.st_mtim);

r = 0;

finish:

set_free_free(symlink_names);

free(filename);

if (f)

fclose(f);

return r;

}

int unit_load_fragment(Unit *u) {

int r;

Iterator i;

const char *t;

assert(u);

assert(u->meta.load_state == UNIT_STUB);

assert(u->meta.id);

/* First, try to find the unit under its id. We always look

if ((r = load_from_path(u, u->meta.id)) < 0)

return r;

/* Try to find an alias we can load this with */

if (u->meta.load_state == UNIT_STUB)

SET_FOREACH(t, u->meta.names, i) {

if (t == u->meta.id)

continue;

if ((r = load_from_path(u, t)) < 0)

return r;

if (u->meta.load_state != UNIT_STUB)

break;

}

/* And now, try looking for it under the suggested (originally linked) path */

if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path) {

if ((r = load_from_path(u, u->meta.fragment_path)) < 0)

return r;

if (u->meta.load_state == UNIT_STUB) {

/* Hmm, this didn't work? Then let's get rid

free(u->meta.fragment_path);

u->meta.fragment_path = NULL;

}

}

/* Look for a template */

if (u->meta.load_state == UNIT_STUB && u->meta.instance) {

char *k;

if (!(k = unit_name_template(u->meta.id)))

return -ENOMEM;

r = load_from_path(u, k);

free(k);

if (r < 0)

return r;

if (u->meta.load_state == UNIT_STUB)

SET_FOREACH(t, u->meta.names, i) {

if (t == u->meta.id)

continue;

if (!(k = unit_name_template(t)))

return -ENOMEM;

r = load_from_path(u, k);

free(k);

if (r < 0)

return r;

if (u->meta.load_state != UNIT_STUB)

break;

}

}

return 0;

}

void unit_dump_config_items(FILE *f) {

/* OK, this wins a prize for extreme ugliness. */

load_from_path(NULL, (const void*) f);

}