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 Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include "syslog-util.h"
#include "time-util.h"
#include "utf8.h"
+#include "rlimit-util.h"
int config_item_table_lookup(
const void *table,
return 0;
}
-/* Parse a variable assignment line */
+/* Parse a single logical line */
static int parse_line(
const char* unit,
const char *filename,
char *l,
void *userdata) {
- char *e;
+ char *e, *include;
assert(filename);
assert(line > 0);
if (strchr(COMMENTS "\n", *l))
return 0;
- if (startswith(l, ".include ")) {
+ include = first_word(l, ".include");
+ if (include) {
_cleanup_free_ char *fn = NULL;
/* .includes are a bad idea, we only support them here
return 0;
}
- fn = file_in_same_dir(filename, strstrip(l+9));
+ 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;
*section_line = 0;
*section_ignored = true;
} else {
- free(*section);
- *section = n;
+ free_and_replace(*section, n);
*section_line = line;
*section_ignored = false;
}
/* Only log on request, except for ENOENT,
* since we return 0 to the caller. */
if ((flags & CONFIG_PARSE_WARN) || errno == ENOENT)
- log_full(errno == ENOENT ? LOG_DEBUG : LOG_ERR,
- "Failed to open configuration file '%s': %m", filename);
+ log_full_errno(errno == ENOENT ? LOG_DEBUG : LOG_ERR, errno,
+ "Failed to open configuration file '%s': %m", filename);
return errno == ENOENT ? 0 : -errno;
}
}
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,
+ §ion,
+ §ion_line,
+ §ion_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;
}
}
#define DEFINE_PARSER(type, vartype, conv_func) \
- int config_parse_##type( \
- 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) { \
- \
- vartype *i = data; \
- int r; \
- \
- assert(filename); \
- assert(lvalue); \
- assert(rvalue); \
- assert(data); \
- \
- r = conv_func(rvalue, i); \
- if (r < 0) \
- log_syntax(unit, LOG_ERR, filename, line, r, \
- "Failed to parse %s value, ignoring: %s", \
- #type, rvalue); \
- \
- return 0; \
- } \
- struct __useless_struct_to_allow_trailing_semicolon__
+ 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);
void *data,
void *userdata) {
- char **s = data, *n;
+ char **s = data;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
- if (!utf8_is_valid(rvalue)) {
- log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
- return 0;
- }
-
- if (isempty(rvalue))
- n = NULL;
- else {
- n = strdup(rvalue);
- if (!n)
- return log_oom();
- }
-
- free(*s);
- *s = n;
+ if (free_and_strdup(s, empty_to_null(rvalue)) < 0)
+ return log_oom();
return 0;
}
void *data,
void *userdata) {
- char **s = data, *n;
+ _cleanup_free_ char *n = NULL;
bool fatal = ltype;
+ char **s = data;
+ int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
- if (isempty(rvalue)) {
- n = NULL;
+ if (isempty(rvalue))
goto finalize;
- }
-
- if (!utf8_is_valid(rvalue)) {
- log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
- return fatal ? -ENOEXEC : 0;
- }
-
- if (!path_is_absolute(rvalue)) {
- log_syntax(unit, LOG_ERR, filename, line, 0,
- "Not an absolute path%s: %s",
- fatal ? "" : ", ignoring", rvalue);
- return fatal ? -ENOEXEC : 0;
- }
n = strdup(rvalue);
if (!n)
return log_oom();
- path_kill_slashes(n);
+ 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:
- free(*s);
- *s = n;
-
- return 0;
+ return free_and_replace(*s, n);
}
int config_parse_strv(
break;
}
- if (!utf8_is_valid(word)) {
- log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, word);
- free(word);
- continue;
- }
-
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,
assert(rvalue);
assert(sig);
- r = signal_from_string_try_harder(rvalue);
+ 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;
return 0;
}
+
+int config_parse_join_controllers(
+ 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 ****ret = data;
+ const char *whole_rvalue = rvalue;
+ unsigned n = 0;
+ _cleanup_(strv_free_freep) char ***controllers = NULL;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(ret);
+
+ for (;;) {
+ _cleanup_free_ char *word = NULL;
+ char **l;
+ int r;
+
+ r = extract_first_word(&rvalue, &word, NULL, EXTRACT_QUOTES);
+ if (r < 0) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue);
+ return r;
+ }
+ if (r == 0)
+ break;
+
+ l = strv_split(word, ",");
+ if (!l)
+ return log_oom();
+ strv_uniq(l);
+
+ if (strv_length(l) <= 1) {
+ strv_free(l);
+ continue;
+ }
+
+ if (!controllers) {
+ controllers = new(char**, 2);
+ if (!controllers) {
+ strv_free(l);
+ return log_oom();
+ }
+
+ controllers[0] = l;
+ controllers[1] = NULL;
+
+ n = 1;
+ } else {
+ char ***a;
+ char ***t;
+
+ t = new0(char**, n+2);
+ if (!t) {
+ strv_free(l);
+ return log_oom();
+ }
+
+ n = 0;
+
+ for (a = controllers; *a; a++)
+ if (strv_overlap(*a, l)) {
+ if (strv_extend_strv(&l, *a, false) < 0) {
+ strv_free(l);
+ strv_free_free(t);
+ return log_oom();
+ }
+
+ } else {
+ char **c;
+
+ c = strv_copy(*a);
+ if (!c) {
+ strv_free(l);
+ strv_free_free(t);
+ return log_oom();
+ }
+
+ t[n++] = c;
+ }
+
+ t[n++] = strv_uniq(l);
+
+ strv_free_free(controllers);
+ controllers = t;
+ }
+ }
+ if (!isempty(rvalue))
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring.");
+
+ /* As a special case, return a single empty strv, to override the default */
+ if (!controllers) {
+ controllers = new(char**, 2);
+ if (!controllers)
+ return log_oom();
+ controllers[0] = strv_new(NULL, NULL);
+ if (!controllers[0])
+ return log_oom();
+ controllers[1] = NULL;
+ }
+
+ strv_free_free(*ret);
+ *ret = TAKE_PTR(controllers);
+
+ 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;
+}
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