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-rw-r--r--src/nspawn/nspawn-settings.c957
1 files changed, 957 insertions, 0 deletions
diff --git a/src/nspawn/nspawn-settings.c b/src/nspawn/nspawn-settings.c
new file mode 100644
index 0000000..08f22be
--- /dev/null
+++ b/src/nspawn/nspawn-settings.c
@@ -0,0 +1,957 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "cap-list.h"
+#include "conf-parser.h"
+#include "cpu-set-util.h"
+#include "hostname-util.h"
+#include "namespace-util.h"
+#include "nspawn-network.h"
+#include "nspawn-settings.h"
+#include "parse-util.h"
+#include "process-util.h"
+#include "rlimit-util.h"
+#include "socket-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "strv.h"
+#include "user-util.h"
+#include "util.h"
+
+Settings *settings_new(void) {
+ Settings *s;
+
+ s = new(Settings, 1);
+ if (!s)
+ return NULL;
+
+ *s = (Settings) {
+ .start_mode = _START_MODE_INVALID,
+ .ephemeral = -1,
+ .personality = PERSONALITY_INVALID,
+
+ .resolv_conf = _RESOLV_CONF_MODE_INVALID,
+ .link_journal = _LINK_JOURNAL_INVALID,
+ .timezone = _TIMEZONE_MODE_INVALID,
+
+ .userns_mode = _USER_NAMESPACE_MODE_INVALID,
+ .userns_ownership = _USER_NAMESPACE_OWNERSHIP_INVALID,
+ .uid_shift = UID_INVALID,
+ .uid_range = UID_INVALID,
+
+ .no_new_privileges = -1,
+
+ .read_only = -1,
+ .volatile_mode = _VOLATILE_MODE_INVALID,
+
+ .private_network = -1,
+ .network_veth = -1,
+
+ .full_capabilities = CAPABILITY_QUINTET_NULL,
+
+ .uid = UID_INVALID,
+ .gid = GID_INVALID,
+
+ .console_mode = _CONSOLE_MODE_INVALID,
+ .console_width = UINT_MAX,
+ .console_height = UINT_MAX,
+
+ .clone_ns_flags = ULONG_MAX,
+ .use_cgns = -1,
+
+ .notify_ready = -1,
+ .suppress_sync = -1,
+ };
+
+ return s;
+}
+
+int settings_load(FILE *f, const char *path, Settings **ret) {
+ _cleanup_(settings_freep) Settings *s = NULL;
+ int r;
+
+ assert(path);
+ assert(ret);
+
+ s = settings_new();
+ if (!s)
+ return -ENOMEM;
+
+ r = config_parse(NULL, path, f,
+ "Exec\0"
+ "Network\0"
+ "Files\0",
+ config_item_perf_lookup, nspawn_gperf_lookup,
+ CONFIG_PARSE_WARN,
+ s, NULL);
+ if (r < 0)
+ return r;
+
+ /* Make sure that if userns_mode is set, userns_chown is set to something appropriate, and vice versa. Either
+ * both fields shall be initialized or neither. */
+ if (s->userns_mode >= 0 && s->userns_ownership < 0)
+ s->userns_ownership = s->userns_mode == USER_NAMESPACE_PICK ? USER_NAMESPACE_OWNERSHIP_CHOWN : USER_NAMESPACE_OWNERSHIP_OFF;
+ if (s->userns_ownership >= 0 && s->userns_mode < 0)
+ s->userns_mode = USER_NAMESPACE_NO;
+
+ *ret = TAKE_PTR(s);
+ return 0;
+}
+
+static void free_oci_hooks(OciHook *h, size_t n) {
+ size_t i;
+
+ assert(h || n == 0);
+
+ for (i = 0; i < n; i++) {
+ free(h[i].path);
+ strv_free(h[i].args);
+ strv_free(h[i].env);
+ }
+
+ free(h);
+}
+
+void device_node_array_free(DeviceNode *node, size_t n) {
+ size_t i;
+
+ assert(node || n == 0);
+
+ for (i = 0; i < n; i++)
+ free(node[i].path);
+
+ free(node);
+}
+
+Settings* settings_free(Settings *s) {
+ if (!s)
+ return NULL;
+
+ strv_free(s->parameters);
+ strv_free(s->environment);
+ free(s->user);
+ free(s->pivot_root_new);
+ free(s->pivot_root_old);
+ free(s->working_directory);
+ strv_free(s->syscall_allow_list);
+ strv_free(s->syscall_deny_list);
+ rlimit_free_all(s->rlimit);
+ free(s->hostname);
+ cpu_set_reset(&s->cpu_set);
+ strv_free(s->bind_user);
+
+ strv_free(s->network_interfaces);
+ strv_free(s->network_macvlan);
+ strv_free(s->network_ipvlan);
+ strv_free(s->network_veth_extra);
+ free(s->network_bridge);
+ free(s->network_zone);
+ expose_port_free_all(s->expose_ports);
+
+ custom_mount_free_all(s->custom_mounts, s->n_custom_mounts);
+
+ free(s->bundle);
+ free(s->root);
+
+ free_oci_hooks(s->oci_hooks_prestart, s->n_oci_hooks_prestart);
+ free_oci_hooks(s->oci_hooks_poststart, s->n_oci_hooks_poststart);
+ free_oci_hooks(s->oci_hooks_poststop, s->n_oci_hooks_poststop);
+
+ free(s->slice);
+ sd_bus_message_unref(s->properties);
+
+ free(s->supplementary_gids);
+ device_node_array_free(s->extra_nodes, s->n_extra_nodes);
+ free(s->network_namespace_path);
+
+ strv_free(s->sysctl);
+
+#if HAVE_SECCOMP
+ seccomp_release(s->seccomp);
+#endif
+
+ return mfree(s);
+}
+
+bool settings_private_network(Settings *s) {
+ assert(s);
+
+ /* Determines whether we shall open up our own private network */
+
+ return
+ s->private_network > 0 ||
+ s->network_veth > 0 ||
+ s->network_bridge ||
+ s->network_zone ||
+ s->network_interfaces ||
+ s->network_macvlan ||
+ s->network_ipvlan ||
+ s->network_veth_extra;
+}
+
+bool settings_network_veth(Settings *s) {
+ assert(s);
+
+ return
+ s->network_veth > 0 ||
+ s->network_bridge ||
+ s->network_zone;
+}
+
+bool settings_network_configured(Settings *s) {
+ assert(s);
+
+ /* Determines whether any network configuration setting was used. (i.e. in contrast to
+ * settings_private_network() above this might also indicate if private networking was explicitly
+ * turned off.) */
+
+ return
+ s->private_network >= 0 ||
+ s->network_veth >= 0 ||
+ s->network_bridge ||
+ s->network_zone ||
+ s->network_interfaces ||
+ s->network_macvlan ||
+ s->network_ipvlan ||
+ s->network_veth_extra ||
+ s->network_namespace_path;
+}
+
+int settings_allocate_properties(Settings *s) {
+ _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
+ int r;
+
+ assert(s);
+
+ if (s->properties)
+ return 0;
+
+ r = sd_bus_default_system(&bus);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_new(bus, &s->properties, SD_BUS_MESSAGE_METHOD_CALL);
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_volatile_mode, volatile_mode, VolatileMode, "Failed to parse volatile mode");
+
+int config_parse_expose_port(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *s = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = expose_port_parse(&s->expose_ports, rvalue);
+ if (r == -EEXIST)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Duplicate port specification, ignoring: %s", rvalue);
+ else if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse host port %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_capability(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ uint64_t u = 0, *result = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&rvalue, &word, NULL, 0);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract capability string, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r == 0)
+ break;
+
+ if (streq(word, "all"))
+ u = UINT64_MAX;
+ else {
+ r = capability_from_name(word);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse capability, ignoring: %s", word);
+ continue;
+ }
+
+ u |= UINT64_C(1) << r;
+ }
+ }
+
+ *result |= u;
+ return 0;
+}
+
+int config_parse_pivot_root(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = pivot_root_parse(&settings->pivot_root_new, &settings->pivot_root_old, rvalue);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid pivot root mount specification %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_bind(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = bind_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue, ltype);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid bind mount specification %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_tmpfs(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = tmpfs_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid temporary file system specification %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_inaccessible(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = inaccessible_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid inaccessible file system specification %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_overlay(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = overlay_mount_parse(&settings->custom_mounts, &settings->n_custom_mounts, rvalue, ltype);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid overlay file system specification %s, ignoring: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_veth_extra(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = veth_extra_parse(&settings->network_veth_extra, rvalue);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid extra virtual Ethernet link specification %s: %m", rvalue);
+
+ return 0;
+}
+
+int config_parse_network_zone(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ _cleanup_free_ char *j = NULL;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ j = strjoin("vz-", rvalue);
+ if (!ifname_valid(j)) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid network zone name, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ return free_and_replace(settings->network_zone, j);
+}
+
+int config_parse_boot(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = parse_boolean(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse Boot= parameter %s, ignoring: %m", rvalue);
+ return 0;
+ }
+
+ if (r) {
+ if (settings->start_mode == START_PID2)
+ goto conflict;
+
+ settings->start_mode = START_BOOT;
+ } else {
+ if (settings->start_mode == START_BOOT)
+ goto conflict;
+
+ if (settings->start_mode < 0)
+ settings->start_mode = START_PID1;
+ }
+
+ return 0;
+
+conflict:
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Conflicting Boot= or ProcessTwo= setting found. Ignoring.");
+ return 0;
+}
+
+int config_parse_pid2(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = parse_boolean(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse ProcessTwo= parameter %s, ignoring: %m", rvalue);
+ return 0;
+ }
+
+ if (r) {
+ if (settings->start_mode == START_BOOT)
+ goto conflict;
+
+ settings->start_mode = START_PID2;
+ } else {
+ if (settings->start_mode == START_PID2)
+ goto conflict;
+
+ if (settings->start_mode < 0)
+ settings->start_mode = START_PID1;
+ }
+
+ return 0;
+
+conflict:
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Conflicting Boot= or ProcessTwo= setting found. Ignoring.");
+ return 0;
+}
+
+int config_parse_private_users(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = parse_boolean(rvalue);
+ if (r == 0) {
+ /* no: User namespacing off */
+ settings->userns_mode = USER_NAMESPACE_NO;
+ settings->uid_shift = UID_INVALID;
+ settings->uid_range = UINT32_C(0x10000);
+ } else if (r > 0) {
+ /* yes: User namespacing on, UID range is read from root dir */
+ settings->userns_mode = USER_NAMESPACE_FIXED;
+ settings->uid_shift = UID_INVALID;
+ settings->uid_range = UINT32_C(0x10000);
+ } else if (streq(rvalue, "pick")) {
+ /* pick: User namespacing on, UID range is picked randomly */
+ settings->userns_mode = USER_NAMESPACE_PICK;
+ settings->uid_shift = UID_INVALID;
+ settings->uid_range = UINT32_C(0x10000);
+ } else if (streq(rvalue, "identity")) {
+ /* identity: User namespacing on, UID range is 0:65536 */
+ settings->userns_mode = USER_NAMESPACE_FIXED;
+ settings->uid_shift = 0;
+ settings->uid_range = UINT32_C(0x10000);
+ } else {
+ const char *range, *shift;
+ uid_t sh, rn;
+
+ /* anything else: User namespacing on, UID range is explicitly configured */
+
+ range = strchr(rvalue, ':');
+ if (range) {
+ shift = strndupa_safe(rvalue, range - rvalue);
+ range++;
+
+ r = safe_atou32(range, &rn);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "UID/GID range invalid, ignoring: %s", range);
+ return 0;
+ }
+ } else {
+ shift = rvalue;
+ rn = UINT32_C(0x10000);
+ }
+
+ r = parse_uid(shift, &sh);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "UID/GID shift invalid, ignoring: %s", range);
+ return 0;
+ }
+
+ if (!userns_shift_range_valid(sh, rn)) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "UID/GID shift and range combination invalid, ignoring: %s", range);
+ return 0;
+ }
+
+ settings->userns_mode = USER_NAMESPACE_FIXED;
+ settings->uid_shift = sh;
+ settings->uid_range = rn;
+ }
+
+ return 0;
+}
+
+int config_parse_syscall_filter(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = data;
+ bool negative;
+ const char *items;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ negative = rvalue[0] == '~';
+ items = negative ? rvalue + 1 : rvalue;
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&items, &word, NULL, 0);
+ if (r == 0)
+ return 0;
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r,
+ "Failed to parse SystemCallFilter= parameter %s, ignoring: %m", rvalue);
+ return 0;
+ }
+
+ if (negative)
+ r = strv_extend(&settings->syscall_deny_list, word);
+ else
+ r = strv_extend(&settings->syscall_allow_list, word);
+ if (r < 0)
+ return log_oom();
+ }
+}
+
+int config_parse_oom_score_adjust(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = ASSERT_PTR(data);
+ int oa, r;
+
+ assert(rvalue);
+
+ if (isempty(rvalue)) {
+ settings->oom_score_adjust_set = false;
+ return 0;
+ }
+
+ r = parse_oom_score_adjust(rvalue, &oa);
+ if (r == -ERANGE) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ settings->oom_score_adjust = oa;
+ settings->oom_score_adjust_set = true;
+
+ return 0;
+}
+
+int config_parse_cpu_affinity(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = ASSERT_PTR(data);
+
+ assert(rvalue);
+
+ return parse_cpu_set_extend(rvalue, &settings->cpu_set, true, unit, filename, line, lvalue);
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_resolv_conf, resolv_conf_mode, ResolvConfMode, "Failed to parse resolv.conf mode");
+
+static const char *const resolv_conf_mode_table[_RESOLV_CONF_MODE_MAX] = {
+ [RESOLV_CONF_OFF] = "off",
+ [RESOLV_CONF_COPY_HOST] = "copy-host",
+ [RESOLV_CONF_COPY_STATIC] = "copy-static",
+ [RESOLV_CONF_COPY_UPLINK] = "copy-uplink",
+ [RESOLV_CONF_COPY_STUB] = "copy-stub",
+ [RESOLV_CONF_REPLACE_HOST] = "replace-host",
+ [RESOLV_CONF_REPLACE_STATIC] = "replace-static",
+ [RESOLV_CONF_REPLACE_UPLINK] = "replace-uplink",
+ [RESOLV_CONF_REPLACE_STUB] = "replace-stub",
+ [RESOLV_CONF_BIND_HOST] = "bind-host",
+ [RESOLV_CONF_BIND_STATIC] = "bind-static",
+ [RESOLV_CONF_BIND_UPLINK] = "bind-uplink",
+ [RESOLV_CONF_BIND_STUB] = "bind-stub",
+ [RESOLV_CONF_DELETE] = "delete",
+ [RESOLV_CONF_AUTO] = "auto",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(resolv_conf_mode, ResolvConfMode, RESOLV_CONF_AUTO);
+
+int parse_link_journal(const char *s, LinkJournal *ret_mode, bool *ret_try) {
+ int r;
+
+ assert(s);
+ assert(ret_mode);
+ assert(ret_try);
+
+ if (streq(s, "auto")) {
+ *ret_mode = LINK_AUTO;
+ *ret_try = false;
+ } else if (streq(s, "guest")) {
+ *ret_mode = LINK_GUEST;
+ *ret_try = false;
+ } else if (streq(s, "host")) {
+ *ret_mode = LINK_HOST;
+ *ret_try = false;
+ } else if (streq(s, "try-guest")) {
+ *ret_mode = LINK_GUEST;
+ *ret_try = true;
+ } else if (streq(s, "try-host")) {
+ *ret_mode = LINK_HOST;
+ *ret_try = true;
+ } else {
+ /* Also support boolean values, to make things less confusing. */
+ r = parse_boolean(s);
+ if (r < 0)
+ return r;
+
+ /* Let's consider "true" to be equivalent to "auto". */
+ *ret_mode = r ? LINK_AUTO : LINK_NO;
+ *ret_try = false;
+ }
+
+ return 0;
+}
+
+int config_parse_link_journal(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ Settings *settings = ASSERT_PTR(data);
+ int r;
+
+ assert(rvalue);
+
+ r = parse_link_journal(rvalue, &settings->link_journal, &settings->link_journal_try);
+ if (r < 0)
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse link journal mode, ignoring: %s", rvalue);
+
+ return 0;
+}
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_timezone, timezone_mode, TimezoneMode, "Failed to parse timezone mode");
+
+static const char *const timezone_mode_table[_TIMEZONE_MODE_MAX] = {
+ [TIMEZONE_OFF] = "off",
+ [TIMEZONE_COPY] = "copy",
+ [TIMEZONE_BIND] = "bind",
+ [TIMEZONE_SYMLINK] = "symlink",
+ [TIMEZONE_DELETE] = "delete",
+ [TIMEZONE_AUTO] = "auto",
+};
+
+DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(timezone_mode, TimezoneMode, TIMEZONE_AUTO);
+
+DEFINE_CONFIG_PARSE_ENUM(config_parse_userns_ownership, user_namespace_ownership, UserNamespaceOwnership, "Failed to parse user namespace ownership mode");
+
+static const char *const user_namespace_ownership_table[_USER_NAMESPACE_OWNERSHIP_MAX] = {
+ [USER_NAMESPACE_OWNERSHIP_OFF] = "off",
+ [USER_NAMESPACE_OWNERSHIP_CHOWN] = "chown",
+ [USER_NAMESPACE_OWNERSHIP_MAP] = "map",
+ [USER_NAMESPACE_OWNERSHIP_AUTO] = "auto",
+};
+
+DEFINE_STRING_TABLE_LOOKUP(user_namespace_ownership, UserNamespaceOwnership);
+
+int config_parse_userns_chown(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ UserNamespaceOwnership *ownership = ASSERT_PTR(data);
+ int r;
+
+ assert(rvalue);
+
+ /* Compatibility support for UserNamespaceChown=, whose job has been taken over by UserNamespaceOwnership= */
+
+ r = parse_boolean(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse user namespace ownership mode, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *ownership = r ? USER_NAMESPACE_OWNERSHIP_CHOWN : USER_NAMESPACE_OWNERSHIP_OFF;
+ return 0;
+}
+
+int config_parse_bind_user(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char ***bind_user = ASSERT_PTR(data);
+ int r;
+
+ assert(rvalue);
+
+ if (isempty(rvalue)) {
+ *bind_user = strv_free(*bind_user);
+ return 0;
+ }
+
+ for (const char* p = rvalue;;) {
+ _cleanup_free_ char *word = NULL;
+
+ r = extract_first_word(&p, &word, NULL, 0);
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse BindUser= list, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r == 0)
+ break;
+
+ if (!valid_user_group_name(word, 0)) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "User name '%s' not valid, ignoring.", word);
+ return 0;
+ }
+
+ if (strv_consume(bind_user, TAKE_PTR(word)) < 0)
+ return log_oom();
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-28 22:21:54 +0000