#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 "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"

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(w, &l, rvalue, state) {

char *t;

int r;

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

return -ENOMEM;

r = unit_add_dependency_by_name(u, d, t);

free(t);

if (r < 0)

return r;

}

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(w, &l, rvalue, state) {

char *t;

int r;

Unit *other;

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

return -ENOMEM;

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

if (other) {

if (other != u) {

if (other->meta.load_state != UNIT_STUB) {

free(t);

return -EEXIST;

}

if ((r = unit_merge(u, other)) < 0) {

free(t);

return r;

}

}

} else {

if ((r = unit_add_name(u, t)) < 0) {

free(t);

return r;

}

}

free(t);

}

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) {

int r;

SocketPort *p;

Socket *s;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

s = (Socket*) data;

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

return -ENOMEM;

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

p->type = SOCKET_FIFO;

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

free(p);

return -ENOMEM;

}

} else {

p->type = SOCKET_SOCKET;

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

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

free(p);

return r;

}

if (streq(lvalue, "ListenStream"))

p->address.type = SOCK_STREAM;

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

p->address.type = SOCK_DGRAM;

else {

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

p->address.type = SOCK_SEQPACKET;

}

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

free(p);

return -EPROTONOSUPPORT;

}

}

p->fd = -1;

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

return 0;

}

static int config_parse_socket_bind(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

int r;

Socket *s;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

s = (Socket*) data;

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

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

return r;

}

s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;

return 0;

}

static int config_parse_nice(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int priority, r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return r;

}

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

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

return -ERANGE;

}

c->nice = priority;

c->nice_set = false;

return 0;

}

static int config_parse_oom_adjust(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

int oa, r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return r;

}

if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) {

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

return -ERANGE;

}

c->oom_adjust = oa;

c->oom_adjust_set = true;

return 0;

}

static int config_parse_umask(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

mode_t *m = data;

long l;

char *x = NULL;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

errno = 0;

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

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

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

return errno ? -errno : -EINVAL;

}

if (l < 0000 || l > 0777) {

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

return -ERANGE;

}

*m = (mode_t) l;

return 0;

}

static int config_parse_exec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecCommand **e = data, *ee, *nce = NULL;

char **n;

char *w;

unsigned k;

size_t l;

char *state;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

k = 0;

FOREACH_WORD_QUOTED(w, l, rvalue, state)

k++;

if (!(n = new(char*, k+1)))

return -ENOMEM;

k = 0;

FOREACH_WORD_QUOTED(w, l, rvalue, state)

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

goto fail;

n[k] = NULL;

if (!n[0] || !path_is_absolute(n[0])) {

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

strv_free(n);

return -EINVAL;

}

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

goto fail;

nce->argv = n;

if (!(nce->path = strdup(n[0])))

goto fail;

if (*e) {

/* It's kinda important that we keep the order here */

LIST_FIND_TAIL(ExecCommand, command, *e, ee);

LIST_INSERT_AFTER(ExecCommand, command, *e, ee, nce);

} else

*e = nce;

return 0;

fail:

for (; k > 0; k--)

free(n[k-1]);

free(n);

free(nce);

return -ENOMEM;

}

static int config_parse_usec(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

usec_t *usec = data;

unsigned long long u;

int r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return r;

}

/* We actually assume the user configures seconds. Later on we

*usec = u * USEC_PER_SEC;

return 0;

}

static int config_parse_service_type(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Service *s = data;

ServiceType x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return -EBADMSG;

}

s->type = x;

return 0;

}

static int config_parse_service_restart(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

Service *s = data;

ServiceRestart x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

log_error("[%s:%u] Failed to parse service restart specifier: %s", filename, line, rvalue);

return -EBADMSG;

}

s->restart = x;

return 0;

}

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 int config_parse_output(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecOutput *o = data, x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return -EBADMSG;

}

*o = x;

return 0;

}

static int config_parse_input(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecInput *i = data, x;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return -EBADMSG;

}

*i = x;

return 0;

}

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)

/* Second try, let's see if this is a number. */

if (safe_atoi(rvalue, &x) < 0 || !log_facility_to_string(x)) {

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

return -EBADMSG;

}

*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)

/* Second try, let's see if this is a number. */

if (safe_atoi(rvalue, &x) < 0 || !log_level_to_string(x)) {

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

return -EBADMSG;

}

*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)

/* Second try, let's see if this is a number. */

if (safe_atoi(rvalue, &x) < 0 || !ioprio_class_to_string(x)) {

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

return -EBADMSG;

}

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: %s", filename, line, rvalue);

return -EBADMSG;

}

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)

/* Second try, let's see if this is a number. */

if (safe_atoi(rvalue, &x) < 0 || !sched_policy_to_string(x)) {

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

return -EBADMSG;

}

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: %s", filename, line, rvalue);

return -EBADMSG;

}

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(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 (r < 0 || cpu >= CPU_SETSIZE) {

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

return -EBADMSG;

}

CPU_SET(cpu, &c->cpu_affinity);

}

c->cpu_affinity_set = true;

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: %s", filename, line, rvalue);

return -EBADMSG;

}

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(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: %s", filename, line, rvalue);

return -EBADMSG;

}

}

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;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

FOREACH_WORD(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: %s", filename, line, rvalue);

return -EBADMSG;

}

c->capability_bounding_set_drop |= 1 << cap;

}

return 0;

}

static int config_parse_timer_slack_ns(

const char *filename,

unsigned line,

const char *section,

const char *lvalue,

const char *rvalue,

void *data,

void *userdata) {

ExecContext *c = data;

unsigned long u;

int r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return r;

}

c->timer_slack_ns = 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;

int r;

assert(filename);

assert(lvalue);

assert(rvalue);

assert(data);

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

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

return r;

}

if (!*rl)

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

return -ENOMEM;

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

return 0;

}

#define FOLLOW_MAX 8

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

unsigned c = 0;

int fd, r;

FILE *f;

char *id = NULL;

assert(filename);

assert(*filename);

assert(_f);

assert(names);

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

for (;;) {

char *target, *k, *name;

if (c++ >= FOLLOW_MAX)

return -ELOOP;

path_kill_slashes(*filename);

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

name = file_name_from_path(*filename);

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

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

return -ENOMEM;

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

free(id);

return r;

}

}

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

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

break;

if (errno != ELOOP)

return -errno;

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

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

return r;

k = file_in_same_dir(*filename, target);

free(target);

if (!k)

return -ENOMEM;

free(*filename);

*filename = k;

}

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

r = -errno;

assert(close_nointr(fd) == 0);

return r;

}

*_f = f;

*_id = id;

return 0;

}

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

static const char* const section_table[_UNIT_TYPE_MAX] = {

[UNIT_SERVICE] = "Service",

[UNIT_TIMER] = "Timer",

[UNIT_SOCKET] = "Socket",

[UNIT_TARGET] = "Target",

[UNIT_DEVICE] = "Device",

[UNIT_MOUNT] = "Mount",

[UNIT_AUTOMOUNT] = "Automount",

[UNIT_SNAPSHOT] = "Snapshot"

};

#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \

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

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

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

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

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

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

{ "OOMAdjust", config_parse_oom_adjust, &(context), section }, \

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

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

{ "Output", config_parse_output, &(context).output, section }, \

{ "Input", config_parse_input, &(context).input, section }, \

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

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

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

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

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

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

{ "TimerSlackNS", config_parse_timer_slack_ns, &(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 }

const ConfigItem items[] = {

{ "Names", config_parse_names, u, "Meta" },

{ "Description", config_parse_string, &u->meta.description, "Meta" },

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

{ "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" },

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

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

{ "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" },

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

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

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

{ "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Meta" },

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

{ "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, "Service" },

{ "Restart", config_parse_service_restart, &u->service, "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" },

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

EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"),

{ NULL, NULL, NULL, NULL }

};

#undef EXEC_CONTEXT_CONFIG_ITEMS

const char *sections[3];

char *k;

int r;

Set *symlink_names;

FILE *f;

char *filename, *id;

sections[0] = "Meta";

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

sections[2] = NULL;

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

return -ENOMEM;

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

if (!(filename = path_make_absolute(path, unit_path()))) {

r = -ENOMEM;

goto finish;

}

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

if (r == -ENOENT)

r = 0; /* returning 0 means: no suitable config file found */

goto finish;

}

/* Now, parse the file contents */

r = config_parse(filename, f, sections, items, u);

if (r < 0)

goto finish;

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

while ((k = set_steal_first(symlink_names))) {

if ((r = unit_add_name(u, k)) < 0)

goto finish;

if (id == k)

unit_choose_id(u, id);

free(k);

}

free(u->meta.load_path);

u->meta.load_path = filename;

filename = NULL;

r = 1; /* returning 1 means: suitable config file found and loaded */

finish:

while ((k = set_steal_first(symlink_names)))

free(k);

set_free(symlink_names);

free(filename);

return r;

}

int unit_load_fragment(Unit *u) {

int r = 0;

ExecContext *c;

assert(u);

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

if (u->meta.load_path)

r = load_from_path(u, u->meta.load_path);

else {

Iterator i;

char *t;

/* Try to find a name we can load this with */

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

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

return r;

}

if (u->meta.type == UNIT_SOCKET)

c = &u->socket.exec_context;

else if (u->meta.type == UNIT_SERVICE)

c = &u->service.exec_context;

else

c = NULL;

if (r >= 0 && c &&

(c->output == EXEC_OUTPUT_KERNEL || c->output == EXEC_OUTPUT_SYSLOG)) {

int k;

/* If syslog or kernel logging is requested, make sure

if ((k = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET)) < 0)

return k;

if ((k = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET)) < 0)

return k;

}

return r;

}