X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fconf-parser.c;h=9c1a02241a95e358abb484fb9bab1ff4575ef585;hp=062b15b86a5b28443b281b563ca1b5491caabd61;hb=08ac0f0c1c37c805b2d08d370484d9008b0d0d5b;hpb=342aea195051633c69ba7b8c02c82a0e5f8cbde4
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index 062b15b86..9c1a02241 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -19,64 +17,34 @@
along with systemd; If not, see .
***/
-#include
-#include
#include
-#include
+#include
+#include
+#include
#include
-#include
+#include
+#include
+#include "alloc-util.h"
+#include "conf-files.h"
#include "conf-parser.h"
-#include "util.h"
+#include "extract-word.h"
+#include "fd-util.h"
+#include "fs-util.h"
+#include "log.h"
#include "macro.h"
+#include "parse-util.h"
+#include "path-util.h"
+#include "process-util.h"
+#include "signal-util.h"
+#include "string-util.h"
#include "strv.h"
-#include "log.h"
+#include "syslog-util.h"
+#include "time-util.h"
#include "utf8.h"
-#include "path-util.h"
-#include "set.h"
-#include "exit-status.h"
-#include "sd-messages.h"
-
-int log_syntax_internal(const char *unit, int level,
- const char *file, unsigned line, const char *func,
- const char *config_file, unsigned config_line,
- int error, const char *format, ...) {
-
- _cleanup_free_ char *msg = NULL;
- int r;
- va_list ap;
-
- va_start(ap, format);
- r = vasprintf(&msg, format, ap);
- va_end(ap);
- if (r < 0)
- return log_oom();
-
- if (unit)
- r = log_struct_internal(level,
- file, line, func,
- getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit,
- MESSAGE_ID(SD_MESSAGE_CONFIG_ERROR),
- "CONFIG_FILE=%s", config_file,
- "CONFIG_LINE=%u", config_line,
- "ERRNO=%d", error > 0 ? error : EINVAL,
- "MESSAGE=[%s:%u] %s", config_file, config_line, msg,
- NULL);
- else
- r = log_struct_internal(level,
- file, line, func,
- MESSAGE_ID(SD_MESSAGE_CONFIG_ERROR),
- "CONFIG_FILE=%s", config_file,
- "CONFIG_LINE=%u", config_line,
- "ERRNO=%d", error > 0 ? error : EINVAL,
- "MESSAGE=[%s:%u] %s", config_file, config_line, msg,
- NULL);
-
- return r;
-}
int config_item_table_lookup(
- void *table,
+ const void *table,
const char *section,
const char *lvalue,
ConfigParserCallback *func,
@@ -84,7 +52,7 @@ int config_item_table_lookup(
void **data,
void *userdata) {
- ConfigTableItem *t;
+ const ConfigTableItem *t;
assert(table);
assert(lvalue);
@@ -110,7 +78,7 @@ int config_item_table_lookup(
}
int config_item_perf_lookup(
- void *table,
+ const void *table,
const char *section,
const char *lvalue,
ConfigParserCallback *func,
@@ -154,7 +122,7 @@ static int next_assignment(const char *unit,
const char *filename,
unsigned line,
ConfigItemLookup lookup,
- void *table,
+ const void *table,
const char *section,
unsigned section_line,
const char *lvalue,
@@ -187,8 +155,7 @@ static int next_assignment(const char *unit,
/* Warn about unknown non-extension fields. */
if (!relaxed && !startswith(lvalue, "X-"))
- log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
- "Unknown lvalue '%s' in section '%s'", lvalue, section);
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown lvalue '%s' in section '%s'", lvalue, section);
return 0;
}
@@ -199,7 +166,7 @@ static int parse_line(const char* unit,
unsigned line,
const char *sections,
ConfigItemLookup lookup,
- void *table,
+ const void *table,
bool relaxed,
bool allow_include,
char **section,
@@ -236,8 +203,7 @@ static int parse_line(const char* unit,
* Support for them should be eventually removed. */
if (!allow_include) {
- log_syntax(unit, LOG_ERR, filename, line, EBADMSG,
- ".include not allowed here. Ignoring.");
+ log_syntax(unit, LOG_ERR, filename, line, 0, ".include not allowed here. Ignoring.");
return 0;
}
@@ -245,7 +211,7 @@ static int parse_line(const char* unit,
if (!fn)
return -ENOMEM;
- return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, false, userdata);
+ return config_parse(unit, fn, NULL, sections, lookup, table, relaxed, false, false, userdata);
}
if (*l == '[') {
@@ -256,8 +222,7 @@ static int parse_line(const char* unit,
assert(k > 0);
if (l[k-1] != ']') {
- log_syntax(unit, LOG_ERR, filename, line, EBADMSG,
- "Invalid section header '%s'", l);
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid section header '%s'", l);
return -EBADMSG;
}
@@ -268,12 +233,10 @@ static int parse_line(const char* unit,
if (sections && !nulstr_contains(sections, n)) {
if (!relaxed && !startswith(n, "X-"))
- log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
- "Unknown section '%s'. Ignoring.", n);
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown section '%s'. Ignoring.", n);
free(n);
- free(*section);
- *section = NULL;
+ *section = mfree(*section);
*section_line = 0;
*section_ignored = true;
} else {
@@ -289,16 +252,15 @@ static int parse_line(const char* unit,
if (sections && !*section) {
if (!relaxed && !*section_ignored)
- log_syntax(unit, LOG_WARNING, filename, line, EINVAL,
- "Assignment outside of section. Ignoring.");
+ 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, EINVAL, "Missing '='.");
- return -EBADMSG;
+ log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing '='.");
+ return -EINVAL;
}
*e = 0;
@@ -323,15 +285,16 @@ int config_parse(const char *unit,
FILE *f,
const char *sections,
ConfigItemLookup lookup,
- void *table,
+ const void *table,
bool relaxed,
bool allow_include,
+ bool warn,
void *userdata) {
_cleanup_free_ char *section = NULL, *continuation = NULL;
_cleanup_fclose_ FILE *ours = NULL;
unsigned line = 0, section_line = 0;
- bool section_ignored = false;
+ bool section_ignored = false, allow_bom = true;
int r;
assert(filename);
@@ -340,34 +303,45 @@ int config_parse(const char *unit,
if (!f) {
f = ours = fopen(filename, "re");
if (!f) {
- log_error("Failed to open configuration file '%s': %m", filename);
- return -errno;
+ /* Only log on request, except for ENOENT,
+ * since we return 0 to the caller. */
+ if (warn || errno == ENOENT)
+ log_full(errno == ENOENT ? LOG_DEBUG : LOG_ERR,
+ "Failed to open configuration file '%s': %m", filename);
+ return errno == ENOENT ? 0 : -errno;
}
}
fd_warn_permissions(filename, fileno(f));
- while (!feof(f)) {
- char l[LINE_MAX], *p, *c = NULL, *e;
+ for (;;) {
+ char buf[LINE_MAX], *l, *p, *c = NULL, *e;
bool escaped = false;
- if (!fgets(l, sizeof(l), f)) {
+ if (!fgets(buf, sizeof buf, f)) {
if (feof(f))
break;
- log_error("Failed to read configuration file '%s': %m", filename);
+ log_error_errno(errno, "Failed to read configuration file '%s': %m", filename);
return -errno;
}
+ l = buf;
+ if (allow_bom && startswith(l, UTF8_BYTE_ORDER_MARK))
+ l += strlen(UTF8_BYTE_ORDER_MARK);
+ allow_bom = false;
+
truncate_nl(l);
if (continuation) {
c = strappend(continuation, l);
- if (!c)
+ if (!c) {
+ if (warn)
+ log_oom();
return -ENOMEM;
+ }
- free(continuation);
- continuation = NULL;
+ continuation = mfree(continuation);
p = c;
} else
p = l;
@@ -386,8 +360,11 @@ int config_parse(const char *unit,
continuation = c;
else {
continuation = strdup(l);
- if (!continuation)
+ if (!continuation) {
+ if (warn)
+ log_oom();
return -ENOMEM;
+ }
}
continue;
@@ -408,6 +385,41 @@ int config_parse(const char *unit,
userdata);
free(c);
+ if (r < 0) {
+ if (warn)
+ log_warning_errno(r, "Failed to parse file '%s': %m",
+ filename);
+ return r;
+ }
+ }
+
+ return 0;
+}
+
+/* Parse each config file in the specified directories. */
+int config_parse_many(const char *conf_file,
+ const char *conf_file_dirs,
+ const char *sections,
+ ConfigItemLookup lookup,
+ const void *table,
+ bool relaxed,
+ void *userdata) {
+ _cleanup_strv_free_ char **files = NULL;
+ char **fn;
+ int r;
+
+ r = conf_files_list_nulstr(&files, ".conf", NULL, conf_file_dirs);
+ if (r < 0)
+ return r;
+
+ if (conf_file) {
+ r = config_parse(NULL, conf_file, NULL, sections, lookup, table, relaxed, false, true, userdata);
+ if (r < 0)
+ return r;
+ }
+
+ STRV_FOREACH(fn, files) {
+ r = config_parse(NULL, *fn, NULL, sections, lookup, table, relaxed, false, true, userdata);
if (r < 0)
return r;
}
@@ -416,7 +428,8 @@ int config_parse(const char *unit,
}
#define DEFINE_PARSER(type, vartype, conv_func) \
- int config_parse_##type(const char *unit, \
+ int config_parse_##type( \
+ const char *unit, \
const char *filename, \
unsigned line, \
const char *section, \
@@ -437,20 +450,25 @@ int config_parse(const char *unit,
\
r = conv_func(rvalue, i); \
if (r < 0) \
- log_syntax(unit, LOG_ERR, filename, line, -r, \
+ log_syntax(unit, LOG_ERR, filename, line, r, \
"Failed to parse %s value, ignoring: %s", \
- #vartype, rvalue); \
+ #type, rvalue); \
\
return 0; \
- }
-
-DEFINE_PARSER(int, int, safe_atoi)
-DEFINE_PARSER(long, long, safe_atoli)
-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)
+ } \
+ struct __useless_struct_to_allow_trailing_semicolon__
+
+DEFINE_PARSER(int, int, safe_atoi);
+DEFINE_PARSER(long, long, safe_atoli);
+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);
+#if 0 /// UNNEEDED by elogind
+DEFINE_PARSER(nsec, nsec_t, parse_nsec);
+#endif // 0
+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,
@@ -464,7 +482,7 @@ int config_parse_iec_size(const char* unit,
void *userdata) {
size_t *sz = data;
- off_t o;
+ uint64_t v;
int r;
assert(filename);
@@ -472,16 +490,17 @@ int config_parse_iec_size(const char* unit,
assert(rvalue);
assert(data);
- r = parse_size(rvalue, 1024, &o);
- if (r < 0 || (off_t) (size_t) o != o) {
- log_syntax(unit, LOG_ERR, filename, line, r < 0 ? -r : ERANGE, "Failed to parse size value, ignoring: %s", rvalue);
+ r = parse_size(rvalue, 1024, &v);
+ if (r < 0 || (uint64_t) (size_t) v != v) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
return 0;
}
- *sz = (size_t) o;
+ *sz = (size_t) v;
return 0;
}
+#if 0 /// UNNEEDED by elogind
int config_parse_si_size(const char* unit,
const char *filename,
unsigned line,
@@ -494,7 +513,7 @@ int config_parse_si_size(const char* unit,
void *userdata) {
size_t *sz = data;
- off_t o;
+ uint64_t v;
int r;
assert(filename);
@@ -502,17 +521,17 @@ int config_parse_si_size(const char* unit,
assert(rvalue);
assert(data);
- r = parse_size(rvalue, 1000, &o);
- if (r < 0 || (off_t) (size_t) o != o) {
- log_syntax(unit, LOG_ERR, filename, line, r < 0 ? -r : ERANGE, "Failed to parse size value, ignoring: %s", rvalue);
+ r = parse_size(rvalue, 1000, &v);
+ if (r < 0 || (uint64_t) (size_t) v != v) {
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
return 0;
}
- *sz = (size_t) o;
+ *sz = (size_t) v;
return 0;
}
-int config_parse_iec_off(const char* unit,
+int config_parse_iec_uint64(const char* unit,
const char *filename,
unsigned line,
const char *section,
@@ -523,7 +542,7 @@ int config_parse_iec_off(const char* unit,
void *data,
void *userdata) {
- off_t *bytes = data;
+ uint64_t *bytes = data;
int r;
assert(filename);
@@ -531,14 +550,13 @@ int config_parse_iec_off(const char* unit,
assert(rvalue);
assert(data);
- assert_cc(sizeof(off_t) == sizeof(uint64_t));
-
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);
+ log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse size value, ignoring: %s", rvalue);
return 0;
}
+#endif // 0
int config_parse_bool(const char* unit,
const char *filename,
@@ -561,8 +579,7 @@ int config_parse_bool(const char* unit,
k = parse_boolean(rvalue);
if (k < 0) {
- log_syntax(unit, LOG_ERR, filename, line, -k,
- "Failed to parse boolean value, ignoring: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse boolean value, ignoring: %s", rvalue);
return 0;
}
@@ -570,6 +587,41 @@ int config_parse_bool(const char* unit,
return 0;
}
+#if 0 /// UNNEEDED by elogind
+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;
+}
+#endif // 0
+
int config_parse_string(
const char *unit,
const char *filename,
@@ -590,7 +642,7 @@ int config_parse_string(
assert(data);
if (!utf8_is_valid(rvalue)) {
- log_invalid_utf8(unit, LOG_ERR, filename, line, EINVAL, rvalue);
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
return 0;
}
@@ -628,12 +680,12 @@ int config_parse_path(
assert(data);
if (!utf8_is_valid(rvalue)) {
- log_invalid_utf8(unit, LOG_ERR, filename, line, EINVAL, rvalue);
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
return 0;
}
if (!path_is_absolute(rvalue)) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL, "Not an absolute path, ignoring: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Not an absolute path, ignoring: %s", rvalue);
return 0;
}
@@ -660,9 +712,7 @@ int config_parse_strv(const char *unit,
void *data,
void *userdata) {
- char *** sv = data, *w, *state;
- size_t l;
- int r;
+ char ***sv = data;
assert(filename);
assert(lvalue);
@@ -685,19 +735,25 @@ int config_parse_strv(const char *unit,
return 0;
}
- FOREACH_WORD_QUOTED(w, l, rvalue, state) {
- char *n;
-
- n = cunescape_length(w, l);
- if (!n)
+ for (;;) {
+ char *word = NULL;
+ int r;
+ r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES);
+ 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;
+ }
- if (!utf8_is_valid(n)) {
- log_invalid_utf8(unit, LOG_ERR, filename, line, EINVAL, rvalue);
+ if (!utf8_is_valid(word)) {
+ log_syntax_invalid_utf8(unit, LOG_ERR, filename, line, rvalue);
+ free(word);
continue;
}
-
- r = strv_consume(sv, n);
+ r = strv_consume(sv, word);
if (r < 0)
return log_oom();
}
@@ -705,45 +761,40 @@ int config_parse_strv(const char *unit,
return 0;
}
-int config_parse_mode(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) {
+#if 0 /// UNNEEDED by elogind
+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) {
+
- mode_t *m = data;
- long l;
- char *x = NULL;
+ int *o = data, x;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
- errno = 0;
- l = strtol(rvalue, &x, 8);
- if (!x || x == rvalue || *x || errno) {
- log_syntax(unit, LOG_ERR, filename, line, errno,
- "Failed to parse mode value, ignoring: %s", rvalue);
+ 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;
}
- if (l < 0000 || l > 07777) {
- log_syntax(unit, LOG_ERR, filename, line, ERANGE,
- "Mode value out of range, ignoring: %s", rvalue);
- return 0;
- }
+ *o = (x << 3) | LOG_PRI(*o);
- *m = (mode_t) l;
return 0;
}
+#endif // 0
-int config_parse_log_facility(
+int config_parse_log_level(
const char *unit,
const char *filename,
unsigned line,
@@ -763,19 +814,17 @@ int config_parse_log_facility(
assert(rvalue);
assert(data);
- x = log_facility_unshifted_from_string(rvalue);
+ x = log_level_from_string(rvalue);
if (x < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to parse log facility, ignoring: %s", rvalue);
+ log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse log level, ignoring: %s", rvalue);
return 0;
}
- *o = (x << 3) | LOG_PRI(*o);
-
+ *o = (*o & LOG_FACMASK) | x;
return 0;
}
-int config_parse_log_level(
+int config_parse_signal(
const char *unit,
const char *filename,
unsigned line,
@@ -787,21 +836,50 @@ int config_parse_log_level(
void *data,
void *userdata) {
+ int *sig = data, r;
- int *o = data, x;
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+ assert(sig);
+
+ r = signal_from_string_try_harder(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;
+}
+
+#if 0 /// UNNEEDED by elogind
+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(data);
+ assert(personality);
- x = log_level_from_string(rvalue);
- if (x < 0) {
- log_syntax(unit, LOG_ERR, filename, line, EINVAL,
- "Failed to parse log level, ignoring: %s", rvalue);
+ 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;
}
- *o = (*o & LOG_FACMASK) | x;
+ *personality = p;
return 0;
}
+#endif // 0