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-rw-r--r--src/core/load-fragment.c2445
1 files changed, 2445 insertions, 0 deletions
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
new file mode 100644
index 0000000000..637c82b427
--- /dev/null
+++ b/src/core/load-fragment.c
@@ -0,0 +1,2445 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+/***
+ This file is part of systemd.
+
+ Copyright 2010 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#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 <sys/time.h>
+#include <sys/resource.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"
+#include "utf8.h"
+
+#ifndef HAVE_SYSV_COMPAT
+int config_parse_warn_compat(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue);
+ return 0;
+}
+#endif
+
+int config_parse_unit_deps(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ UnitDependency d = ltype;
+ 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;
+
+ t = strndup(w, l);
+ if (!t)
+ 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("[%s:%u] Failed to add dependency on %s, ignoring: %s", filename, line, k, strerror(-r));
+
+ free(k);
+ }
+
+ return 0;
+}
+
+int config_parse_unit_names(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = userdata;
+ char *w;
+ size_t l;
+ char *state;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t, *k;
+ int r;
+
+ t = strndup(w, l);
+ if (!t)
+ 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;
+}
+
+int config_parse_unit_string_printf(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = userdata;
+ char *k;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(u);
+
+ k = unit_full_printf(u, rvalue);
+ if (!k)
+ return -ENOMEM;
+
+ r = config_parse_string(filename, line, section, lvalue, ltype, k, data, userdata);
+ free (k);
+
+ return r;
+}
+
+int config_parse_unit_strv_printf(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = userdata;
+ char *k;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(u);
+
+ k = unit_full_printf(u, rvalue);
+ if (!k)
+ return -ENOMEM;
+
+ r = config_parse_strv(filename, line, section, lvalue, ltype, k, data, userdata);
+ free(k);
+
+ return r;
+}
+
+int config_parse_unit_path_printf(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = userdata;
+ char *k;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(u);
+
+ k = unit_full_printf(u, rvalue);
+ if (!k)
+ return -ENOMEM;
+
+ r = config_parse_path(filename, line, section, lvalue, ltype, k, data, userdata);
+ free(k);
+
+ return r;
+}
+
+int config_parse_socket_listen(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ SocketPort *p, *tail;
+ Socket *s;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ s = SOCKET(data);
+
+ p = new0(SocketPort, 1);
+ if (!p)
+ return -ENOMEM;
+
+ if (streq(lvalue, "ListenFIFO")) {
+ p->type = SOCKET_FIFO;
+
+ if (!(p->path = unit_full_printf(UNIT(s), rvalue))) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(p->path);
+
+ } else if (streq(lvalue, "ListenSpecial")) {
+ p->type = SOCKET_SPECIAL;
+
+ if (!(p->path = unit_full_printf(UNIT(s), rvalue))) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(p->path);
+
+ } else if (streq(lvalue, "ListenMessageQueue")) {
+
+ p->type = SOCKET_MQUEUE;
+
+ if (!(p->path = unit_full_printf(UNIT(s), rvalue))) {
+ free(p);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(p->path);
+
+ } else if (streq(lvalue, "ListenNetlink")) {
+ char *k;
+ int r;
+
+ p->type = SOCKET_SOCKET;
+ k = unit_full_printf(UNIT(s), rvalue);
+ r = socket_address_parse_netlink(&p->address, k);
+ free(k);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
+ free(p);
+ return 0;
+ }
+
+ } else {
+ char *k;
+ int r;
+
+ p->type = SOCKET_SOCKET;
+ k = unit_full_printf(UNIT(s), rvalue);
+ r = socket_address_parse(&p->address, k);
+ free(k);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
+ free(p);
+ return 0;
+ }
+
+ if (streq(lvalue, "ListenStream"))
+ p->address.type = SOCK_STREAM;
+ else if (streq(lvalue, "ListenDatagram"))
+ p->address.type = SOCK_DGRAM;
+ else {
+ assert(streq(lvalue, "ListenSequentialPacket"));
+ p->address.type = SOCK_SEQPACKET;
+ }
+
+ if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
+ log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);
+ free(p);
+ return 0;
+ }
+ }
+
+ p->fd = -1;
+
+ if (s->ports) {
+ LIST_FIND_TAIL(SocketPort, port, s->ports, tail);
+ LIST_INSERT_AFTER(SocketPort, port, s->ports, tail, p);
+ } else
+ LIST_PREPEND(SocketPort, port, s->ports, p);
+
+ return 0;
+}
+
+int config_parse_socket_bind(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s;
+ SocketAddressBindIPv6Only b;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ s = SOCKET(data);
+
+ if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {
+ int r;
+
+ if ((r = parse_boolean(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
+ } else
+ s->bind_ipv6_only = b;
+
+ return 0;
+}
+
+int config_parse_exec_nice(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int priority;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atoi(rvalue, &priority) < 0) {
+ log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);
+ return 0;
+ }
+
+ if (priority < PRIO_MIN || priority >= PRIO_MAX) {
+ log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->nice = priority;
+ c->nice_set = true;
+
+ return 0;
+}
+
+int config_parse_exec_oom_score_adjust(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int oa;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atoi(rvalue, &oa) < 0) {
+ log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
+ log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->oom_score_adjust = oa;
+ c->oom_score_adjust_set = true;
+
+ return 0;
+}
+
+int config_parse_exec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecCommand **e = data, *nce;
+ char *path, **n;
+ unsigned k;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(e);
+
+ /* We accept an absolute path as first argument, or
+ * alternatively an absolute prefixed with @ to allow
+ * overriding of argv[0]. */
+
+ e += ltype;
+
+ 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++;
+ }
+
+ n = new(char*, k + !honour_argv0);
+ if (!n)
+ 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);
+
+ path = strndup(w, l);
+ if (!path) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (!utf8_is_valid(path)) {
+ log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+ r = 0;
+ goto fail;
+ }
+
+ } else {
+ char *c;
+
+ c = n[k++] = cunescape_length(w, l);
+ if (!c) {
+ r = -ENOMEM;
+ goto fail;
+ }
+
+ if (!utf8_is_valid(c)) {
+ log_error("[%s:%u] Path is not UTF-8 clean, ignoring assignment: %s", filename, line, rvalue);
+ r = 0;
+ goto fail;
+ }
+ }
+ }
+
+ n[k] = NULL;
+
+ if (!n[0]) {
+ log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);
+ r = 0;
+ goto fail;
+ }
+
+ if (!path) {
+ path = strdup(n[0]);
+ if (!path) {
+ r = -ENOMEM;
+ goto fail;
+ }
+ }
+
+ assert(path_is_absolute(path));
+
+ nce = new0(ExecCommand, 1);
+ if (!nce) {
+ r = -ENOMEM;
+ 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 r;
+}
+
+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");
+
+int config_parse_socket_bindtodevice(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s = data;
+ char *n;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (rvalue[0] && !streq(rvalue, "*")) {
+ if (!(n = strdup(rvalue)))
+ return -ENOMEM;
+ } else
+ n = NULL;
+
+ free(s->bind_to_device);
+ s->bind_to_device = n;
+
+ return 0;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
+DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
+
+int config_parse_facility(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = log_facility_unshifted_from_string(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *o = (x << 3) | LOG_PRI(*o);
+
+ return 0;
+}
+
+int config_parse_level(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = log_level_from_string(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *o = (*o & LOG_FACMASK) | x;
+ return 0;
+}
+
+int config_parse_exec_io_class(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = ioprio_class_from_string(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
+ c->ioprio_set = true;
+
+ return 0;
+}
+
+int config_parse_exec_io_priority(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
+ log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
+ c->ioprio_set = true;
+
+ return 0;
+}
+
+int config_parse_exec_cpu_sched_policy(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+
+ ExecContext *c = data;
+ int x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = sched_policy_from_string(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->cpu_sched_policy = x;
+ c->cpu_sched_set = true;
+
+ return 0;
+}
+
+int config_parse_exec_cpu_sched_prio(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ /* On Linux RR/FIFO have the same range */
+ if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
+ log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->cpu_sched_priority = i;
+ c->cpu_sched_set = true;
+
+ return 0;
+}
+
+int config_parse_exec_cpu_affinity(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ char *w;
+ size_t l;
+ char *state;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t;
+ int r;
+ unsigned cpu;
+
+ if (!(t = strndup(w, l)))
+ return -ENOMEM;
+
+ r = safe_atou(t, &cpu);
+ free(t);
+
+ if (!(c->cpuset))
+ if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus)))
+ return -ENOMEM;
+
+ if (r < 0 || cpu >= c->cpuset_ncpus) {
+ log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);
+ }
+
+ return 0;
+}
+
+int config_parse_exec_capabilities(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ cap_t cap;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (!(cap = cap_from_text(rvalue))) {
+ if (errno == ENOMEM)
+ return -ENOMEM;
+
+ log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (c->capabilities)
+ cap_free(c->capabilities);
+ c->capabilities = cap;
+
+ return 0;
+}
+
+int config_parse_exec_secure_bits(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ char *w;
+ size_t l;
+ char *state;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ if (first_word(w, "keep-caps"))
+ c->secure_bits |= SECURE_KEEP_CAPS;
+ else if (first_word(w, "keep-caps-locked"))
+ c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
+ else if (first_word(w, "no-setuid-fixup"))
+ c->secure_bits |= SECURE_NO_SETUID_FIXUP;
+ else if (first_word(w, "no-setuid-fixup-locked"))
+ c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
+ else if (first_word(w, "noroot"))
+ c->secure_bits |= SECURE_NOROOT;
+ else if (first_word(w, "noroot-locked"))
+ c->secure_bits |= SECURE_NOROOT_LOCKED;
+ else {
+ log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+ }
+
+ return 0;
+}
+
+int config_parse_exec_bounding_set(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ char *w;
+ size_t l;
+ char *state;
+ bool invert = false;
+ uint64_t sum = 0;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (rvalue[0] == '~') {
+ invert = true;
+ rvalue++;
+ }
+
+ /* Note that we store this inverted internally, since the
+ * kernel wants it like this. But we actually expose it
+ * non-inverted everywhere to have a fully normalized
+ * interface. */
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t;
+ int r;
+ cap_value_t cap;
+
+ if (!(t = strndup(w, l)))
+ return -ENOMEM;
+
+ r = cap_from_name(t, &cap);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ sum |= ((uint64_t) 1ULL) << (uint64_t) cap;
+ }
+
+ if (invert)
+ c->capability_bounding_set_drop |= sum;
+ else
+ c->capability_bounding_set_drop |= ~sum;
+
+ return 0;
+}
+
+int config_parse_exec_timer_slack_nsec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ unsigned long u;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atolu(rvalue, &u) < 0) {
+ log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c->timer_slack_nsec = u;
+
+ return 0;
+}
+
+int config_parse_limit(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ struct rlimit **rl = data;
+ unsigned long long u;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ rl += ltype;
+
+ if (streq(rvalue, "infinity"))
+ u = (unsigned long long) RLIM_INFINITY;
+ else if (safe_atollu(rvalue, &u) < 0) {
+ log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!*rl)
+ if (!(*rl = new(struct rlimit, 1)))
+ return -ENOMEM;
+
+ (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
+ return 0;
+}
+
+int config_parse_unit_cgroup(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = userdata;
+ char *w;
+ size_t l;
+ char *state;
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t, *k;
+ int r;
+
+ t = strndup(w, l);
+ if (!t)
+ return -ENOMEM;
+
+ k = unit_full_printf(u, t);
+ free(t);
+
+ if (!k)
+ return -ENOMEM;
+
+ t = cunescape(k);
+ free(k);
+
+ if (!t)
+ 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
+int config_parse_sysv_priority(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *priority = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atoi(rvalue, &i) < 0 || i < 0) {
+ log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *priority = (int) i;
+ return 0;
+}
+#endif
+
+int config_parse_fsck_passno(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *passno = data;
+ int i;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atoi(rvalue, &i) || i < 0) {
+ log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *passno = (int) i;
+ return 0;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
+
+int config_parse_kill_signal(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *sig = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(sig);
+
+ if ((r = signal_from_string_try_harder(rvalue)) <= 0) {
+ log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *sig = r;
+ return 0;
+}
+
+int config_parse_exec_mount_flags(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ExecContext *c = data;
+ char *w;
+ size_t l;
+ char *state;
+ unsigned long flags = 0;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ if (strncmp(w, "shared", MAX(l, 6U)) == 0)
+ flags |= MS_SHARED;
+ else if (strncmp(w, "slave", MAX(l, 5U)) == 0)
+ flags |= MS_SLAVE;
+ else if (strncmp(w, "private", MAX(l, 7U)) == 0)
+ flags |= MS_PRIVATE;
+ else {
+ log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+ }
+
+ c->mount_flags = flags;
+ return 0;
+}
+
+int config_parse_timer(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Timer *t = data;
+ usec_t u;
+ TimerValue *v;
+ TimerBase b;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((b = timer_base_from_string(lvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
+ return 0;
+ }
+
+ if (parse_usec(rvalue, &u) < 0) {
+ log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!(v = new0(TimerValue, 1)))
+ return -ENOMEM;
+
+ v->base = b;
+ v->value = u;
+
+ LIST_PREPEND(TimerValue, value, t->values, v);
+
+ return 0;
+}
+
+int config_parse_timer_unit(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Timer *t = data;
+ int r;
+ DBusError error;
+ Unit *u;
+
+ 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;
+ }
+
+ r = manager_load_unit(UNIT(t)->manager, rvalue, NULL, NULL, &u);
+ 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);
+ return 0;
+ }
+
+ unit_ref_set(&t->unit, u);
+
+ return 0;
+}
+
+int config_parse_path_spec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Path *p = data;
+ PathSpec *s;
+ PathType b;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((b = path_type_from_string(lvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
+ return 0;
+ }
+
+ if (!path_is_absolute(rvalue)) {
+ log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!(s = new0(PathSpec, 1)))
+ return -ENOMEM;
+
+ if (!(s->path = strdup(rvalue))) {
+ free(s);
+ return -ENOMEM;
+ }
+
+ path_kill_slashes(s->path);
+
+ s->type = b;
+ s->inotify_fd = -1;
+
+ LIST_PREPEND(PathSpec, spec, p->specs, s);
+
+ return 0;
+}
+
+int config_parse_path_unit(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Path *t = data;
+ int r;
+ DBusError error;
+ Unit *u;
+
+ 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(UNIT(t)->manager, rvalue, NULL, &error, &u)) < 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;
+ }
+
+ unit_ref_set(&t->unit, u);
+
+ return 0;
+}
+
+int config_parse_socket_service(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Socket *s = data;
+ int r;
+ DBusError error;
+ Unit *x;
+
+ 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;
+ }
+
+ r = manager_load_unit(UNIT(s)->manager, rvalue, NULL, &error, &x);
+ 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);
+ return 0;
+ }
+
+ unit_ref_set(&s->service, x);
+
+ return 0;
+}
+
+int config_parse_service_sockets(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Service *s = data;
+ int r;
+ char *state, *w;
+ size_t l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t, *k;
+
+ t = strndup(w, l);
+ if (!t)
+ return -ENOMEM;
+
+ k = unit_name_printf(UNIT(s), t);
+ free(t);
+
+ if (!k)
+ return -ENOMEM;
+
+ if (!endswith(k, ".socket")) {
+ log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue);
+ free(k);
+ continue;
+ }
+
+ r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, NULL, true);
+ if (r < 0)
+ log_error("[%s:%u] Failed to add dependency on %s, ignoring: %s", filename, line, k, strerror(-r));
+
+ r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, NULL, true);
+ if (r < 0)
+ return r;
+
+ free(k);
+ }
+
+ return 0;
+}
+
+int config_parse_unit_env_file(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char ***env = data, **k;
+ Unit *u = userdata;
+ char *s;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ s = unit_full_printf(u, rvalue);
+ if (!s)
+ return -ENOMEM;
+
+ if (!path_is_absolute(s[0] == '-' ? s + 1 : s)) {
+ log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, s);
+ free(s);
+ return 0;
+ }
+
+ k = strv_append(*env, s);
+ free(s);
+ if (!k)
+ return -ENOMEM;
+
+ strv_free(*env);
+ *env = k;
+
+ return 0;
+}
+
+int config_parse_ip_tos(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *ip_tos = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((x = ip_tos_from_string(rvalue)) < 0)
+ if (safe_atoi(rvalue, &x) < 0) {
+ log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *ip_tos = x;
+ return 0;
+}
+
+int config_parse_unit_condition_path(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ConditionType cond = ltype;
+ Unit *u = data;
+ bool trigger, negate;
+ Condition *c;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ trigger = rvalue[0] == '|';
+ if (trigger)
+ rvalue++;
+
+ negate = rvalue[0] == '!';
+ if (negate)
+ rvalue++;
+
+ if (!path_is_absolute(rvalue)) {
+ log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ c = condition_new(cond, rvalue, trigger, negate);
+ if (!c)
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->conditions, c);
+ return 0;
+}
+
+int config_parse_unit_condition_string(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ ConditionType cond = ltype;
+ Unit *u = data;
+ bool trigger, negate;
+ Condition *c;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((trigger = rvalue[0] == '|'))
+ rvalue++;
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if (!(c = condition_new(cond, rvalue, trigger, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->conditions, c);
+ return 0;
+}
+
+int config_parse_unit_condition_null(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ Condition *c;
+ bool trigger, negate;
+ int b;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if ((trigger = rvalue[0] == '|'))
+ rvalue++;
+
+ if ((negate = rvalue[0] == '!'))
+ rvalue++;
+
+ if ((b = parse_boolean(rvalue)) < 0) {
+ log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (!b)
+ negate = !negate;
+
+ if (!(c = condition_new(CONDITION_NULL, NULL, trigger, negate)))
+ return -ENOMEM;
+
+ LIST_PREPEND(Condition, conditions, u->conditions, c);
+ return 0;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
+DEFINE_CONFIG_PARSE_ENUM(config_parse_start_limit_action, start_limit_action, StartLimitAction, "Failed to parse start limit action specifier");
+
+int config_parse_unit_cgroup_attr(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Unit *u = data;
+ char **l;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ if (strv_length(l) != 2) {
+ log_error("[%s:%u] Failed to parse cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ r = unit_add_cgroup_attribute(u, NULL, l[0], l[1], NULL);
+ strv_free(l);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_unit_cpu_shares(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ unsigned long ul;
+ char *t;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (safe_atolu(rvalue, &ul) < 0 || ul < 1) {
+ log_error("[%s:%u] Failed to parse CPU shares value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (asprintf(&t, "%lu", ul) < 0)
+ return -ENOMEM;
+
+ r = unit_add_cgroup_attribute(u, "cpu", "cpu.shares", t, NULL);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_unit_memory_limit(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ off_t sz;
+ char *t;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (parse_bytes(rvalue, &sz) < 0 || sz <= 0) {
+ log_error("[%s:%u] Failed to parse memory limit value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (asprintf(&t, "%llu", (unsigned long long) sz) < 0)
+ return -ENOMEM;
+
+ r = unit_add_cgroup_attribute(u,
+ "memory",
+ streq(lvalue, "MemorySoftLimit") ? "memory.soft_limit_in_bytes" : "memory.limit_in_bytes",
+ t, NULL);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+static int device_map(const char *controller, const char *name, const char *value, char **ret) {
+ char **l;
+
+ assert(controller);
+ assert(name);
+ assert(value);
+ assert(ret);
+
+ l = strv_split_quoted(value);
+ if (!l)
+ return -ENOMEM;
+
+ assert(strv_length(l) >= 1);
+
+ if (streq(l[0], "*")) {
+
+ if (asprintf(ret, "a *:*%s%s",
+ isempty(l[1]) ? "" : " ", strempty(l[1])) < 0) {
+ strv_free(l);
+ return -ENOMEM;
+ }
+
+ } else {
+ struct stat st;
+
+ if (stat(l[0], &st) < 0) {
+ log_warning("Couldn't stat device %s", l[0]);
+ strv_free(l);
+ return -errno;
+ }
+
+ if (!S_ISCHR(st.st_mode) && !S_ISBLK(st.st_mode)) {
+ log_warning("%s is not a device.", l[0]);
+ strv_free(l);
+ return -ENODEV;
+ }
+
+ if (asprintf(ret, "%c %u:%u%s%s",
+ S_ISCHR(st.st_mode) ? 'c' : 'b',
+ major(st.st_rdev), minor(st.st_rdev),
+ isempty(l[1]) ? "" : " ", strempty(l[1])) < 0) {
+
+ strv_free(l);
+ return -ENOMEM;
+ }
+ }
+
+ strv_free(l);
+ return 0;
+}
+
+int config_parse_unit_device_allow(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ char **l;
+ int r;
+ unsigned k;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ k = strv_length(l);
+ if (k < 1 || k > 2) {
+ log_error("[%s:%u] Failed to parse device value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (!streq(l[0], "*") && !path_startswith(l[0], "/dev")) {
+ log_error("[%s:%u] Device node path not absolute, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (!isempty(l[1]) && !in_charset(l[1], "rwm")) {
+ log_error("[%s:%u] Device access string invalid, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+ strv_free(l);
+
+ r = unit_add_cgroup_attribute(u, "devices",
+ streq(lvalue, "DeviceAllow") ? "devices.allow" : "devices.deny",
+ rvalue, device_map);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+static int blkio_map(const char *controller, const char *name, const char *value, char **ret) {
+ struct stat st;
+ char **l;
+ dev_t d;
+
+ assert(controller);
+ assert(name);
+ assert(value);
+ assert(ret);
+
+ l = strv_split_quoted(value);
+ if (!l)
+ return -ENOMEM;
+
+ assert(strv_length(l) == 2);
+
+ if (stat(l[0], &st) < 0) {
+ log_warning("Couldn't stat device %s", l[0]);
+ strv_free(l);
+ return -errno;
+ }
+
+ if (S_ISBLK(st.st_mode))
+ d = st.st_rdev;
+ else if (major(st.st_dev) != 0) {
+ /* If this is not a device node then find the block
+ * device this file is stored on */
+ d = st.st_dev;
+
+ /* If this is a partition, try to get the originating
+ * block device */
+ block_get_whole_disk(d, &d);
+ } else {
+ log_warning("%s is not a block device and file system block device cannot be determined or is not local.", l[0]);
+ strv_free(l);
+ return -ENODEV;
+ }
+
+ if (asprintf(ret, "%u:%u %s", major(d), minor(d), l[1]) < 0) {
+ strv_free(l);
+ return -ENOMEM;
+ }
+
+ strv_free(l);
+ return 0;
+}
+
+int config_parse_unit_blkio_weight(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ unsigned long ul;
+ const char *device = NULL, *weight;
+ unsigned k;
+ char *t, **l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ k = strv_length(l);
+ if (k < 1 || k > 2) {
+ log_error("[%s:%u] Failed to parse weight value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (k == 1)
+ weight = l[0];
+ else {
+ device = l[0];
+ weight = l[1];
+ }
+
+ if (device && !path_is_absolute(device)) {
+ log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (safe_atolu(weight, &ul) < 0 || ul < 10 || ul > 1000) {
+ log_error("[%s:%u] Failed to parse block IO weight value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (device)
+ r = asprintf(&t, "%s %lu", device, ul);
+ else
+ r = asprintf(&t, "%lu", ul);
+ strv_free(l);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ if (device)
+ r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight_device", t, blkio_map);
+ else
+ r = unit_add_cgroup_attribute(u, "blkio", "blkio.weight", t, NULL);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_unit_blkio_bandwidth(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata) {
+ Unit *u = data;
+ int r;
+ off_t bytes;
+ unsigned k;
+ char *t, **l;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ l = strv_split_quoted(rvalue);
+ if (!l)
+ return -ENOMEM;
+
+ k = strv_length(l);
+ if (k != 2) {
+ log_error("[%s:%u] Failed to parse bandwidth value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (!path_is_absolute(l[0])) {
+ log_error("[%s:%u] Failed to parse block device node value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ if (parse_bytes(l[1], &bytes) < 0 || bytes <= 0) {
+ log_error("[%s:%u] Failed to parse block IO bandwith value, ignoring: %s", filename, line, rvalue);
+ strv_free(l);
+ return 0;
+ }
+
+ r = asprintf(&t, "%s %llu", l[0], (unsigned long long) bytes);
+ strv_free(l);
+
+ if (r < 0)
+ return -ENOMEM;
+
+ r = unit_add_cgroup_attribute(u, "blkio",
+ streq(lvalue, "BlockIOReadBandwidth") ? "blkio.read_bps_device" : "blkio.write_bps_device",
+ t, blkio_map);
+ free(t);
+
+ if (r < 0) {
+ log_error("[%s:%u] Failed to add cgroup attribute value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+
+#define FOLLOW_MAX 8
+
+static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
+ unsigned c = 0;
+ int fd, r;
+ FILE *f;
+ char *id = NULL;
+
+ assert(filename);
+ assert(*filename);
+ assert(_f);
+ assert(names);
+
+ /* This will update the filename pointer if the loaded file is
+ * reached by a symlink. The old string will be freed. */
+
+ for (;;) {
+ char *target, *name;
+
+ if (c++ >= FOLLOW_MAX)
+ return -ELOOP;
+
+ path_kill_slashes(*filename);
+
+ /* Add the file name we are currently looking at to
+ * the names of this unit, but only if it is a valid
+ * unit name. */
+ name = file_name_from_path(*filename);
+
+ if (unit_name_is_valid(name, true)) {
+
+ id = set_get(names, name);
+ if (!id) {
+ id = strdup(name);
+ if (!id)
+ return -ENOMEM;
+
+ r = set_put(names, id);
+ if (r < 0) {
+ free(id);
+ return r;
+ }
+ }
+ }
+
+ /* Try to open the file name, but don't if its a symlink */
+ if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
+ break;
+
+ if (errno != ELOOP)
+ return -errno;
+
+ /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
+ if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
+ return r;
+
+ free(*filename);
+ *filename = target;
+ }
+
+ if (!(f = fdopen(fd, "re"))) {
+ r = -errno;
+ close_nointr_nofail(fd);
+ return r;
+ }
+
+ *_f = f;
+ *_final = id;
+ return 0;
+}
+
+static int merge_by_names(Unit **u, Set *names, const char *id) {
+ char *k;
+ int r;
+
+ assert(u);
+ assert(*u);
+ assert(names);
+
+ /* Let's try to add in all symlink names we found */
+ while ((k = set_steal_first(names))) {
+
+ /* First try to merge in the other name into our
+ * unit */
+ if ((r = unit_merge_by_name(*u, k)) < 0) {
+ Unit *other;
+
+ /* Hmm, we couldn't merge the other unit into
+ * ours? Then let's try it the other way
+ * round */
+
+ other = manager_get_unit((*u)->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 int load_from_path(Unit *u, const char *path) {
+ int r;
+ Set *symlink_names;
+ FILE *f = NULL;
+ char *filename = NULL, *id = NULL;
+ Unit *merged;
+ struct stat st;
+
+ assert(u);
+ assert(path);
+
+ symlink_names = set_new(string_hash_func, string_compare_func);
+ if (!symlink_names)
+ 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->manager->lookup_paths.unit_path) {
+
+ /* Instead of opening the path right away, we manually
+ * follow all symlinks and add their name to our unit
+ * name set while doing so */
+ if (!(filename = path_make_absolute(path, *p))) {
+ r = -ENOMEM;
+ goto finish;
+ }
+
+ if (u->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) {
+ 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->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->load_state = UNIT_MASKED;
+ else {
+ /* Now, parse the file contents */
+ r = config_parse(filename, f, UNIT_VTABLE(u)->sections, config_item_perf_lookup, (void*) load_fragment_gperf_lookup, false, u);
+ if (r < 0)
+ goto finish;
+
+ u->load_state = UNIT_LOADED;
+ }
+
+ free(u->fragment_path);
+ u->fragment_path = filename;
+ filename = NULL;
+
+ u->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->load_state == UNIT_STUB);
+ assert(u->id);
+
+ /* First, try to find the unit under its id. We always look
+ * for unit files in the default directories, to make it easy
+ * to override things by placing things in /etc/systemd/system */
+ if ((r = load_from_path(u, u->id)) < 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;
+
+ if ((r = load_from_path(u, t)) < 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) {
+
+ if ((r = load_from_path(u, u->fragment_path)) < 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. */
+ free(u->fragment_path);
+ u->fragment_path = NULL;
+ }
+ }
+
+ /* Look for a template */
+ if (u->load_state == UNIT_STUB && u->instance) {
+ char *k;
+
+ if (!(k = unit_name_template(u->id)))
+ return -ENOMEM;
+
+ r = load_from_path(u, k);
+ free(k);
+
+ if (r < 0)
+ return r;
+
+ if (u->load_state == UNIT_STUB)
+ SET_FOREACH(t, u->names, i) {
+
+ if (t == u->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->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_int, "INTEGER" },
+ { config_parse_unsigned, "UNSIGNED" },
+ { config_parse_bytes_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_output, "OUTPUT" },
+ { config_parse_input, "INPUT" },
+ { config_parse_facility, "FACILITY" },
+ { config_parse_level, "LEVEL" },
+ { config_parse_exec_capabilities, "CAPABILITIES" },
+ { config_parse_exec_secure_bits, "SECUREBITS" },
+ { config_parse_exec_bounding_set, "BOUNDINGSET" },
+ { config_parse_exec_timer_slack_nsec, "TIMERSLACK" },
+ { config_parse_limit, "LIMIT" },
+ { config_parse_unit_cgroup, "CGROUP [...]" },
+ { config_parse_unit_deps, "UNIT [...]" },
+ { config_parse_unit_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_socket_listen, "SOCKET [...]" },
+ { config_parse_socket_bind, "SOCKETBIND" },
+ { config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
+ { config_parse_usec, "SECONDS" },
+ { config_parse_path_strv, "PATH [...]" },
+ { config_parse_exec_mount_flags, "MOUNTFLAG [...]" },
+ { config_parse_unit_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_unit_condition_path, "CONDITION" },
+ { config_parse_unit_condition_string, "CONDITION" },
+ { config_parse_unit_condition_null, "CONDITION" },
+ };
+
+ const char *prev = NULL;
+ const char *i;
+
+ assert(f);
+
+ NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
+ const char *rvalue = "OTHER", *lvalue;
+ unsigned j;
+ size_t prefix_len;
+ const char *dot;
+ const ConfigPerfItem *p;
+
+ assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
+
+ dot = strchr(i, '.');
+ lvalue = dot ? dot + 1 : i;
+ prefix_len = dot-i;
+
+ if (dot)
+ if (!prev || strncmp(prev, i, prefix_len+1) != 0) {
+ if (prev)
+ fputc('\n', f);
+
+ fprintf(f, "[%.*s]\n", (int) prefix_len, i);
+ }
+
+ for (j = 0; j < ELEMENTSOF(table); j++)
+ if (p->parse == table[j].callback) {
+ rvalue = table[j].rvalue;
+ break;
+ }
+
+ fprintf(f, "%s=%s\n", lvalue, rvalue);
+ prev = i;
+ }
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-19 07:50:09 +0000