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-rw-r--r--src/shared/conf-parser.c1113
1 files changed, 1113 insertions, 0 deletions
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
new file mode 100644
index 0000000..b80c147
--- /dev/null
+++ b/src/shared/conf-parser.c
@@ -0,0 +1,1113 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <errno.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include "alloc-util.h"
+#include "conf-files.h"
+#include "conf-parser.h"
+#include "def.h"
+#include "extract-word.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "log.h"
+#include "macro.h"
+#include "missing.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "process-util.h"
+#include "rlimit-util.h"
+#include "signal-util.h"
+#include "socket-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "syslog-util.h"
+#include "time-util.h"
+#include "utf8.h"
+
+int config_item_table_lookup(
+ const void *table,
+ const char *section,
+ const char *lvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
+ void *userdata) {
+
+ const ConfigTableItem *t;
+
+ assert(table);
+ assert(lvalue);
+ assert(func);
+ assert(ltype);
+ assert(data);
+
+ for (t = table; t->lvalue; t++) {
+
+ if (!streq(lvalue, t->lvalue))
+ continue;
+
+ if (!streq_ptr(section, t->section))
+ continue;
+
+ *func = t->parse;
+ *ltype = t->ltype;
+ *data = t->data;
+ return 1;
+ }
+
+ return 0;
+}
+
+int config_item_perf_lookup(
+ const void *table,
+ const char *section,
+ const char *lvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
+ void *userdata) {
+
+ ConfigPerfItemLookup lookup = (ConfigPerfItemLookup) table;
+ const ConfigPerfItem *p;
+
+ assert(table);
+ assert(lvalue);
+ assert(func);
+ assert(ltype);
+ assert(data);
+
+ if (section) {
+ const char *key;
+
+ key = strjoina(section, ".", lvalue);
+ p = lookup(key, strlen(key));
+ } else
+ p = lookup(lvalue, strlen(lvalue));
+ if (!p)
+ return 0;
+
+ *func = p->parse;
+ *ltype = p->ltype;
+ *data = (uint8_t*) userdata + p->offset;
+ return 1;
+}
+
+/* Run the user supplied parser for an assignment */
+static int next_assignment(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ ConfigItemLookup lookup,
+ const void *table,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ const char *rvalue,
+ ConfigParseFlags flags,
+ void *userdata) {
+
+ ConfigParserCallback func = NULL;
+ int ltype = 0;
+ void *data = NULL;
+ int r;
+
+ assert(filename);
+ assert(line > 0);
+ assert(lookup);
+ assert(lvalue);
+ assert(rvalue);
+
+ r = lookup(table, section, lvalue, &func, &ltype, &data, userdata);
+ if (r < 0)
+ return r;
+ if (r > 0) {
+ if (func)
+ return func(unit, filename, line, section, section_line,
+ lvalue, ltype, rvalue, data, userdata);
+
+ return 0;
+ }
+
+ /* Warn about unknown non-extension fields. */
+ if (!(flags & CONFIG_PARSE_RELAXED) && !startswith(lvalue, "X-"))
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown lvalue '%s' in section '%s', ignoring", lvalue, section);
+
+ return 0;
+}
+
+/* Parse a single logical line */
+static int parse_line(
+ const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ ConfigParseFlags flags,
+ char **section,
+ unsigned *section_line,
+ bool *section_ignored,
+ char *l,
+ void *userdata) {
+
+ char *e, *include;
+
+ assert(filename);
+ assert(line > 0);
+ assert(lookup);
+ assert(l);
+
+ l = strstrip(l);
+ if (!*l)
+ return 0;
+
+ if (*l == '\n')
+ return 0;
+
+ include = first_word(l, ".include");
+ if (include) {
+ _cleanup_free_ char *fn = NULL;
+
+ /* .includes are a bad idea, we only support them here
+ * for historical reasons. They create cyclic include
+ * problems and make it difficult to detect
+ * configuration file changes with an easy
+ * stat(). Better approaches, such as .d/ drop-in
+ * snippets exist.
+ *
+ * Support for them should be eventually removed. */
+
+ if (!(flags & CONFIG_PARSE_ALLOW_INCLUDE)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, ".include not allowed here. Ignoring.");
+ return 0;
+ }
+
+ log_syntax(unit, LOG_WARNING, filename, line, 0,
+ ".include directives are deprecated, and support for them will be removed in a future version of systemd. "
+ "Please use drop-in files instead.");
+
+ fn = file_in_same_dir(filename, strstrip(include));
+ if (!fn)
+ return -ENOMEM;
+
+ return config_parse(unit, fn, NULL, sections, lookup, table, flags, userdata);
+ }
+
+ if (!utf8_is_valid(l))
+ return log_syntax_invalid_utf8(unit, LOG_WARNING, filename, line, l);
+
+ if (*l == '[') {
+ size_t k;
+ char *n;
+
+ k = strlen(l);
+ assert(k > 0);
+
+ if (l[k-1] != ']') {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid section header '%s'", l);
+ return -EBADMSG;
+ }
+
+ n = strndup(l+1, k-2);
+ if (!n)
+ return -ENOMEM;
+
+ if (sections && !nulstr_contains(sections, n)) {
+
+ if (!(flags & CONFIG_PARSE_RELAXED) && !startswith(n, "X-"))
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n);
+
+ free(n);
+ *section = mfree(*section);
+ *section_line = 0;
+ *section_ignored = true;
+ } else {
+ free_and_replace(*section, n);
+ *section_line = line;
+ *section_ignored = false;
+ }
+
+ return 0;
+ }
+
+ if (sections && !*section) {
+
+ if (!(flags & CONFIG_PARSE_RELAXED) && !*section_ignored)
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Assignment outside of section. Ignoring.");
+
+ return 0;
+ }
+
+ e = strchr(l, '=');
+ if (!e) {
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing '='.");
+ return -EINVAL;
+ }
+
+ *e = 0;
+ e++;
+
+ return next_assignment(unit,
+ filename,
+ line,
+ lookup,
+ table,
+ *section,
+ *section_line,
+ strstrip(l),
+ strstrip(e),
+ flags,
+ userdata);
+}
+
+/* Go through the file and parse each line */
+int config_parse(const char *unit,
+ const char *filename,
+ FILE *f,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ ConfigParseFlags flags,
+ void *userdata) {
+
+ _cleanup_free_ char *section = NULL, *continuation = NULL;
+ _cleanup_fclose_ FILE *ours = NULL;
+ unsigned line = 0, section_line = 0;
+ bool section_ignored = false;
+ int r;
+
+ assert(filename);
+ assert(lookup);
+
+ if (!f) {
+ f = ours = fopen(filename, "re");
+ if (!f) {
+ /* Only log on request, except for ENOENT,
+ * since we return 0 to the caller. */
+ if ((flags & CONFIG_PARSE_WARN) || errno == ENOENT)
+ log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno,
+ "Failed to open configuration file '%s': %m", filename);
+ return errno == ENOENT ? 0 : -errno;
+ }
+ }
+
+ fd_warn_permissions(filename, fileno(f));
+
+ for (;;) {
+ _cleanup_free_ char *buf = NULL;
+ bool escaped = false;
+ char *l, *p, *e;
+
+ r = read_line(f, LONG_LINE_MAX, &buf);
+ if (r == 0)
+ break;
+ if (r == -ENOBUFS) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_error_errno(r, "%s:%u: Line too long", filename, line);
+
+ return r;
+ }
+ if (r < 0) {
+ if (CONFIG_PARSE_WARN)
+ log_error_errno(r, "%s:%u: Error while reading configuration file: %m", filename, line);
+
+ return r;
+ }
+
+ if (strchr(COMMENTS, *skip_leading_chars(buf, WHITESPACE)))
+ continue;
+
+ l = buf;
+ if (!(flags & CONFIG_PARSE_REFUSE_BOM)) {
+ char *q;
+
+ q = startswith(buf, UTF8_BYTE_ORDER_MARK);
+ if (q) {
+ l = q;
+ flags |= CONFIG_PARSE_REFUSE_BOM;
+ }
+ }
+
+ if (continuation) {
+ if (strlen(continuation) + strlen(l) > LONG_LINE_MAX) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_error("%s:%u: Continuation line too long", filename, line);
+ return -ENOBUFS;
+ }
+
+ if (!strextend(&continuation, l, NULL)) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_oom();
+ return -ENOMEM;
+ }
+
+ p = continuation;
+ } else
+ p = l;
+
+ for (e = p; *e; e++) {
+ if (escaped)
+ escaped = false;
+ else if (*e == '\\')
+ escaped = true;
+ }
+
+ if (escaped) {
+ *(e-1) = ' ';
+
+ if (!continuation) {
+ continuation = strdup(l);
+ if (!continuation) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_oom();
+ return -ENOMEM;
+ }
+ }
+
+ continue;
+ }
+
+ r = parse_line(unit,
+ filename,
+ ++line,
+ sections,
+ lookup,
+ table,
+ flags,
+ &section,
+ &section_line,
+ &section_ignored,
+ p,
+ userdata);
+ if (r < 0) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
+ return r;
+ }
+
+ continuation = mfree(continuation);
+ }
+
+ if (continuation) {
+ r = parse_line(unit,
+ filename,
+ ++line,
+ sections,
+ lookup,
+ table,
+ flags,
+ &section,
+ &section_line,
+ &section_ignored,
+ continuation,
+ userdata);
+ if (r < 0) {
+ if (flags & CONFIG_PARSE_WARN)
+ log_warning_errno(r, "%s:%u: Failed to parse file: %m", filename, line);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+static int config_parse_many_files(
+ const char *conf_file,
+ char **files,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ ConfigParseFlags flags,
+ void *userdata) {
+
+ char **fn;
+ int r;
+
+ if (conf_file) {
+ r = config_parse(NULL, conf_file, NULL, sections, lookup, table, flags, userdata);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(fn, files) {
+ r = config_parse(NULL, *fn, NULL, sections, lookup, table, flags, userdata);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+/* Parse each config file in the directories specified as nulstr. */
+int config_parse_many_nulstr(
+ const char *conf_file,
+ const char *conf_file_dirs,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ ConfigParseFlags flags,
+ void *userdata) {
+
+ _cleanup_strv_free_ char **files = NULL;
+ int r;
+
+ r = conf_files_list_nulstr(&files, ".conf", NULL, 0, conf_file_dirs);
+ if (r < 0)
+ return r;
+
+ return config_parse_many_files(conf_file, files, sections, lookup, table, flags, userdata);
+}
+
+/* Parse each config file in the directories specified as strv. */
+int config_parse_many(
+ const char *conf_file,
+ const char* const* conf_file_dirs,
+ const char *dropin_dirname,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ ConfigParseFlags flags,
+ void *userdata) {
+
+ _cleanup_strv_free_ char **dropin_dirs = NULL;
+ _cleanup_strv_free_ char **files = NULL;
+ const char *suffix;
+ int r;
+
+ suffix = strjoina("/", dropin_dirname);
+ r = strv_extend_strv_concat(&dropin_dirs, (char**) conf_file_dirs, suffix);
+ if (r < 0)
+ return r;
+
+ r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char* const*) dropin_dirs);
+ if (r < 0)
+ return r;
+
+ return config_parse_many_files(conf_file, files, sections, lookup, table, flags, userdata);
+}
+
+#define DEFINE_PARSER(type, vartype, conv_func) \
+ DEFINE_CONFIG_PARSE_PTR(config_parse_##type, conv_func, vartype, "Failed to parse " #type " value")
+
+DEFINE_PARSER(int, int, safe_atoi);
+DEFINE_PARSER(long, long, safe_atoli);
+DEFINE_PARSER(uint8, uint8_t, safe_atou8);
+DEFINE_PARSER(uint16, uint16_t, safe_atou16);
+DEFINE_PARSER(uint32, uint32_t, safe_atou32);
+DEFINE_PARSER(uint64, uint64_t, safe_atou64);
+DEFINE_PARSER(unsigned, unsigned, safe_atou);
+DEFINE_PARSER(double, double, safe_atod);
+DEFINE_PARSER(nsec, nsec_t, parse_nsec);
+DEFINE_PARSER(sec, usec_t, parse_sec);
+DEFINE_PARSER(mode, mode_t, parse_mode);
+
+int config_parse_iec_size(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ size_t *sz = data;
+ uint64_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1024, &v);
+ if (r >= 0 && (uint64_t) (size_t) v != v)
+ r = -ERANGE;
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value '%s', ignoring: %m", rvalue);
+ return 0;
+ }
+
+ *sz = (size_t) v;
+ return 0;
+}
+
+int config_parse_si_size(
+ const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ size_t *sz = data;
+ uint64_t v;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1000, &v);
+ if (r >= 0 && (uint64_t) (size_t) v != v)
+ r = -ERANGE;
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value '%s', ignoring: %m", rvalue);
+ return 0;
+ }
+
+ *sz = (size_t) v;
+ return 0;
+}
+
+int config_parse_iec_uint64(
+ 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 *bytes = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ r = parse_size(rvalue, 1024, bytes);
+ if (r < 0)
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
+
+ return 0;
+}
+
+int config_parse_bool(const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int k;
+ bool *b = data;
+ bool fatal = ltype;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ k = parse_boolean(rvalue);
+ if (k < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, k,
+ "Failed to parse boolean value%s: %s",
+ fatal ? "" : ", ignoring", rvalue);
+ return fatal ? -ENOEXEC : 0;
+ }
+
+ *b = k;
+ return 0;
+}
+
+int config_parse_tristate(
+ const char* unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int k, *t = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ /* A tristate is pretty much a boolean, except that it can
+ * also take the special value -1, indicating "uninitialized",
+ * much like NULL is for a pointer type. */
+
+ k = parse_boolean(rvalue);
+ if (k < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *t = !!k;
+ return 0;
+}
+
+int config_parse_string(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char **s = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (free_and_strdup(s, empty_to_null(rvalue)) < 0)
+ return log_oom();
+
+ return 0;
+}
+
+int config_parse_path(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ _cleanup_free_ char *n = NULL;
+ bool fatal = ltype;
+ char **s = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue))
+ goto finalize;
+
+ n = strdup(rvalue);
+ if (!n)
+ return log_oom();
+
+ r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE | (fatal ? PATH_CHECK_FATAL : 0), unit, filename, line, lvalue);
+ if (r < 0)
+ return fatal ? -ENOEXEC : 0;
+
+finalize:
+ return free_and_replace(*s, n);
+}
+
+int config_parse_strv(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ char ***sv = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ *sv = strv_free(*sv);
+ return 0;
+ }
+
+ for (;;) {
+ char *word = NULL;
+
+ r = extract_first_word(&rvalue, &word, NULL, EXTRACT_QUOTES|EXTRACT_RETAIN_ESCAPE);
+ if (r == 0)
+ break;
+ if (r == -ENOMEM)
+ return log_oom();
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
+ break;
+ }
+
+ r = strv_consume(sv, word);
+ if (r < 0)
+ return log_oom();
+ }
+
+ return 0;
+}
+
+int config_parse_warn_compat(
+ 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) {
+
+ Disabled reason = ltype;
+
+ switch(reason) {
+
+ case DISABLED_CONFIGURATION:
+ log_syntax(unit, LOG_DEBUG, filename, line, 0,
+ "Support for option %s= has been disabled at compile time and it is ignored", lvalue);
+ break;
+
+ case DISABLED_LEGACY:
+ log_syntax(unit, LOG_INFO, filename, line, 0,
+ "Support for option %s= has been removed and it is ignored", lvalue);
+ break;
+
+ case DISABLED_EXPERIMENTAL:
+ log_syntax(unit, LOG_INFO, filename, line, 0,
+ "Support for option %s= has not yet been enabled and it is ignored", lvalue);
+ break;
+ }
+
+ return 0;
+}
+
+int config_parse_log_facility(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ x = log_facility_unshifted_from_string(rvalue);
+ if (x < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log facility, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *o = (x << 3) | LOG_PRI(*o);
+
+ return 0;
+}
+
+int config_parse_log_level(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *o = data, x;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ x = log_level_from_string(rvalue);
+ if (x < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (*o < 0) /* if it wasn't initialized so far, assume zero facility */
+ *o = x;
+ else
+ *o = (*o & LOG_FACMASK) | x;
+
+ return 0;
+}
+
+int config_parse_signal(
+ const char *unit,
+ const char *filename,
+ unsigned line,
+ const char *section,
+ unsigned section_line,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ int *sig = data, r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(sig);
+
+ r = signal_from_string(rvalue);
+ if (r <= 0) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse signal name, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *sig = r;
+ return 0;
+}
+
+int config_parse_personality(
+ 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) {
+
+ unsigned long *personality = data, p;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(personality);
+
+ if (isempty(rvalue))
+ p = PERSONALITY_INVALID;
+ else {
+ p = personality_from_string(rvalue);
+ if (p == PERSONALITY_INVALID) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse personality, ignoring: %s", rvalue);
+ return 0;
+ }
+ }
+
+ *personality = p;
+ return 0;
+}
+
+int config_parse_ifname(
+ 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 **s = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ *s = mfree(*s);
+ return 0;
+ }
+
+ if (!ifname_valid(rvalue)) {
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue);
+ return 0;
+ }
+
+ r = free_and_strdup(s, rvalue);
+ if (r < 0)
+ return log_oom();
+
+ return 0;
+}
+
+int config_parse_ip_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) {
+
+ uint16_t *s = data;
+ uint16_t port;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (isempty(rvalue)) {
+ *s = 0;
+ return 0;
+ }
+
+ r = parse_ip_port(rvalue, &port);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse port '%s'.", rvalue);
+ return 0;
+ }
+
+ *s = port;
+
+ return 0;
+}
+
+int config_parse_mtu(
+ 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) {
+
+ uint32_t *mtu = data;
+ int r;
+
+ assert(rvalue);
+ assert(mtu);
+
+ r = parse_mtu(ltype, rvalue, mtu);
+ if (r == -ERANGE) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Maximum transfer unit (MTU) value out of range. Permitted range is %" PRIu32 "…%" PRIu32 ", ignoring: %s",
+ (uint32_t) (ltype == AF_INET6 ? IPV6_MIN_MTU : IPV4_MIN_MTU), (uint32_t) UINT32_MAX,
+ rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse MTU value '%s', ignoring: %m", rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_rlimit(
+ 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) {
+
+ struct rlimit **rl = data, d = {};
+ int r;
+
+ assert(rvalue);
+ assert(rl);
+
+ r = rlimit_parse(ltype, rvalue, &d);
+ if (r == -EILSEQ) {
+ log_syntax(unit, LOG_WARNING, filename, line, r, "Soft resource limit chosen higher than hard limit, ignoring: %s", rvalue);
+ return 0;
+ }
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse resource value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ if (rl[ltype])
+ *rl[ltype] = d;
+ else {
+ rl[ltype] = newdup(struct rlimit, &d, 1);
+ if (!rl[ltype])
+ return log_oom();
+ }
+
+ return 0;
+}
+
+int config_parse_permille(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) {
+
+ unsigned *permille = data;
+ int r;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(permille);
+
+ r = parse_permille(rvalue);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r,
+ "Failed to parse permille value, ignoring: %s", rvalue);
+ return 0;
+ }
+
+ *permille = (unsigned) r;
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 18:35:04 +0000