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-rw-r--r--src/conf-parser.c290
1 files changed, 237 insertions, 53 deletions
diff --git a/src/conf-parser.c b/src/conf-parser.c
index 02f740a04f..970877650d 100644
--- a/src/conf-parser.c
+++ b/src/conf-parser.c
@@ -31,50 +31,135 @@
#include "strv.h"
#include "log.h"
-/* Run the user supplied parser for an assignment */
-static int next_assignment(
- const char *filename,
- unsigned line,
+int config_item_table_lookup(
+ void *table,
const char *section,
- const ConfigItem *t,
- bool relaxed,
const char *lvalue,
- const char *rvalue,
+ ConfigParserCallback *func,
+ int *ltype,
+ void **data,
void *userdata) {
- assert(filename);
- assert(t);
+ ConfigTableItem *t;
+
+ assert(table);
assert(lvalue);
- assert(rvalue);
+ assert(func);
+ assert(ltype);
+ assert(data);
- for (; t->parse || t->lvalue; t++) {
+ for (t = table; t->lvalue; t++) {
- if (t->lvalue && !streq(lvalue, t->lvalue))
+ if (!streq(lvalue, t->lvalue))
continue;
- if (t->section && !section)
+ if (!streq_ptr(section, t->section))
continue;
- if (t->section && !streq(section, t->section))
- continue;
+ *func = t->parse;
+ *ltype = t->ltype;
+ *data = t->data;
+ return 1;
+ }
- if (!t->parse)
- return 0;
+ return 0;
+}
- return t->parse(filename, line, section, lvalue, t->ltype, rvalue, t->data, userdata);
+int config_item_perf_lookup(
+ 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)
+ p = lookup(lvalue, strlen(lvalue));
+ else {
+ char *key;
+
+ if (asprintf(&key, "%s.%s", section, lvalue) < 0)
+ return -ENOMEM;
+
+ p = lookup(key, strlen(key));
+ free(key);
}
+ 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 *filename,
+ unsigned line,
+ ConfigItemLookup lookup,
+ void *table,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ bool relaxed,
+ 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 (func)
+ return func(filename, line, section, lvalue, ltype, rvalue, data, userdata);
+
/* Warn about unknown non-extension fields. */
if (!relaxed && !startswith(lvalue, "X-"))
- log_info("[%s:%u] Unknown lvalue '%s' in section '%s'. Ignoring.", filename, line, lvalue, strna(section));
+ log_info("[%s:%u] Unknown lvalue '%s' in section '%s'. Ignoring.", filename, line, lvalue, section);
return 0;
}
/* Parse a variable assignment line */
-static int parse_line(const char *filename, unsigned line, char **section, const char* const * sections, const ConfigItem *t, bool relaxed, char *l, void *userdata) {
+static int parse_line(
+ const char *filename,
+ unsigned line,
+ const char *sections,
+ ConfigItemLookup lookup,
+ void *table,
+ bool relaxed,
+ char **section,
+ char *l,
+ void *userdata) {
+
char *e;
+ assert(filename);
+ assert(line > 0);
+ assert(lookup);
+ assert(l);
+
l = strstrip(l);
if (!*l)
@@ -87,10 +172,11 @@ static int parse_line(const char *filename, unsigned line, char **section, const
char *fn;
int r;
- if (!(fn = file_in_same_dir(filename, strstrip(l+9))))
+ fn = file_in_same_dir(filename, strstrip(l+9));
+ if (!fn)
return -ENOMEM;
- r = config_parse(fn, NULL, sections, t, relaxed, userdata);
+ r = config_parse(fn, NULL, sections, lookup, table, relaxed, userdata);
free(fn);
return r;
@@ -108,22 +194,30 @@ static int parse_line(const char *filename, unsigned line, char **section, const
return -EBADMSG;
}
- if (!(n = strndup(l+1, k-2)))
+ n = strndup(l+1, k-2);
+ if (!n)
return -ENOMEM;
- if (!relaxed && sections && !strv_contains((char**) sections, n))
- log_info("[%s:%u] Unknown section '%s'. Ignoring.", filename, line, n);
+ if (sections && !nulstr_contains(sections, n)) {
- free(*section);
- *section = n;
+ if (!relaxed)
+ log_info("[%s:%u] Unknown section '%s'. Ignoring.", filename, line, n);
+
+ free(n);
+ *section = NULL;
+ } else {
+ free(*section);
+ *section = n;
+ }
return 0;
}
- if (sections && (!*section || !strv_contains((char**) sections, *section)))
+ if (sections && !*section)
return 0;
- if (!(e = strchr(l, '='))) {
+ e = strchr(l, '=');
+ if (!e) {
log_error("[%s:%u] Missing '='.", filename, line);
return -EBADMSG;
}
@@ -131,11 +225,28 @@ static int parse_line(const char *filename, unsigned line, char **section, const
*e = 0;
e++;
- return next_assignment(filename, line, *section, t, relaxed, strstrip(l), strstrip(e), userdata);
+ return next_assignment(
+ filename,
+ line,
+ lookup,
+ table,
+ *section,
+ strstrip(l),
+ strstrip(e),
+ relaxed,
+ userdata);
}
/* Go through the file and parse each line */
-int config_parse(const char *filename, FILE *f, const char* const * sections, const ConfigItem *t, bool relaxed, void *userdata) {
+int config_parse(
+ const char *filename,
+ FILE *f,
+ const char *sections,
+ ConfigItemLookup lookup,
+ void *table,
+ bool relaxed,
+ void *userdata) {
+
unsigned line = 0;
char *section = NULL;
int r;
@@ -143,10 +254,11 @@ int config_parse(const char *filename, FILE *f, const char* const * sections, co
char *continuation = NULL;
assert(filename);
- assert(t);
+ assert(lookup);
if (!f) {
- if (!(f = fopen(filename, "re"))) {
+ f = fopen(filename, "re");
+ if (!f) {
r = -errno;
log_error("Failed to open configuration file '%s': %s", filename, strerror(-r));
goto finish;
@@ -171,7 +283,8 @@ int config_parse(const char *filename, FILE *f, const char* const * sections, co
truncate_nl(l);
if (continuation) {
- if (!(c = strappend(continuation, l))) {
+ c = strappend(continuation, l);
+ if (!c) {
r = -ENOMEM;
goto finish;
}
@@ -194,15 +307,26 @@ int config_parse(const char *filename, FILE *f, const char* const * sections, co
if (c)
continuation = c;
- else if (!(continuation = strdup(l))) {
- r = -ENOMEM;
- goto finish;
+ else {
+ continuation = strdup(l);
+ if (!c) {
+ r = -ENOMEM;
+ goto finish;
+ }
}
continue;
}
- r = parse_line(filename, ++line, &section, sections, t, relaxed, p, userdata);
+ r = parse_line(filename,
+ ++line,
+ sections,
+ lookup,
+ table,
+ relaxed,
+ &section,
+ p,
+ userdata);
free(c);
if (r < 0)
@@ -240,8 +364,8 @@ int config_parse_int(
assert(data);
if ((r = safe_atoi(rvalue, i)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
- return r;
+ log_error("[%s:%u] Failed to parse numeric value, ingoring: %s", filename, line, rvalue);
+ return 0;
}
return 0;
@@ -266,8 +390,8 @@ int config_parse_long(
assert(data);
if ((r = safe_atoli(rvalue, i)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
- return r;
+ log_error("[%s:%u] Failed to parse numeric value, ignoring: %s", filename, line, rvalue);
+ return 0;
}
return 0;
@@ -292,8 +416,8 @@ int config_parse_uint64(
assert(data);
if ((r = safe_atou64(rvalue, u)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
- return r;
+ log_error("[%s:%u] Failed to parse numeric value, ignoring: %s", filename, line, rvalue);
+ return 0;
}
return 0;
@@ -345,8 +469,8 @@ int config_parse_size(
assert(data);
if ((r = safe_atou(rvalue, &u)) < 0) {
- log_error("[%s:%u] Failed to parse numeric value: %s", filename, line, rvalue);
- return r;
+ log_error("[%s:%u] Failed to parse numeric value, ignoring: %s", filename, line, rvalue);
+ return 0;
}
*sz = (size_t) u;
@@ -372,8 +496,8 @@ int config_parse_bool(
assert(data);
if ((k = parse_boolean(rvalue)) < 0) {
- log_error("[%s:%u] Failed to parse boolean value: %s", filename, line, rvalue);
- return k;
+ log_error("[%s:%u] Failed to parse boolean value, ignoring: %s", filename, line, rvalue);
+ return 0;
}
*b = !!k;
@@ -429,8 +553,8 @@ int config_parse_path(
assert(data);
if (!path_is_absolute(rvalue)) {
- log_error("[%s:%u] Not an absolute path: %s", filename, line, rvalue);
- return -EINVAL;
+ log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
+ return 0;
}
if (!(n = strdup(rvalue)))
@@ -539,9 +663,9 @@ int config_parse_path_strv(
}
if (!path_is_absolute(n[k])) {
- log_error("[%s:%u] Not an absolute path: %s", filename, line, rvalue);
- r = -EINVAL;
- goto fail;
+ log_error("[%s:%u] Not an absolute path, ignoring: %s", filename, line, rvalue);
+ free(n[k]);
+ continue;
}
path_kill_slashes(n[k]);
@@ -563,3 +687,63 @@ fail:
return r;
}
+
+int config_parse_usec(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ usec_t *usec = data;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ if (parse_usec(rvalue, usec) < 0) {
+ log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ return 0;
+}
+
+int config_parse_mode(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ int ltype,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ mode_t *m = data;
+ long l;
+ char *x = NULL;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(data);
+
+ errno = 0;
+ l = strtol(rvalue, &x, 8);
+ if (!x || *x || errno) {
+ log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ if (l < 0000 || l > 07777) {
+ log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
+ return 0;
+ }
+
+ *m = (mode_t) l;
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 02:28:43 +0100