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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-10-22 14:38:49 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-10-22 14:42:12 -0400
commit92e724670f700d100b8cc8cbaea776b053be31ed (patch)
tree9b18c14a41625bbcf6ce80cfdd6729c8bd7ebcb7 /src/udev
parent5707ecf300a96376449d2d7670a61e64bb53a236 (diff)
udev: change kernel commandline option parsing
- do not crash if an option without value is specified on the kernel command line, e.g. "udev.log-priority" :P - simplify the code a bit - warn about unknown "udev.*" options — this should make it easier to spot typos and reduce user confusion
Diffstat (limited to 'src/udev')
-rw-r--r--src/udev/udevd.c47
1 files changed, 17 insertions, 30 deletions
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 601ab69f1b..05cd5079c1 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -1363,8 +1363,7 @@ static int listen_fds(int *rctrl, int *rnetlink) {
* udev.event-timeout=<number of seconds> seconds to wait before terminating an event
*/
static int parse_proc_cmdline_item(const char *key, const char *value, void *data) {
- const char *full_key = key;
- int r;
+ int r = 0;
assert(key);
@@ -1374,37 +1373,25 @@ static int parse_proc_cmdline_item(const char *key, const char *value, void *dat
if (startswith(key, "rd."))
key += strlen("rd.");
- if (startswith(key, "udev."))
- key += strlen("udev.");
- else
- return 0;
-
- if (streq(key, "log-priority")) {
- int prio;
-
- prio = util_log_priority(value);
- if (prio < 0)
- goto invalid;
- log_set_max_level(prio);
- } else if (streq(key, "children-max")) {
+ if (streq(key, "udev.log-priority") && value) {
+ r = util_log_priority(value);
+ if (r >= 0)
+ log_set_max_level(r);
+ } else if (streq(key, "udev.event-timeout") && value) {
+ r = safe_atou64(value, &arg_event_timeout_usec);
+ if (r >= 0) {
+ arg_event_timeout_usec *= USEC_PER_SEC;
+ arg_event_timeout_warn_usec = (arg_event_timeout_usec / 3) ? : 1;
+ }
+ } else if (streq(key, "udev.children-max") && value)
r = safe_atou(value, &arg_children_max);
- if (r < 0)
- goto invalid;
- } else if (streq(key, "exec-delay")) {
+ else if (streq(key, "udev.exec-delay") && value)
r = safe_atoi(value, &arg_exec_delay);
- if (r < 0)
- goto invalid;
- } else if (streq(key, "event-timeout")) {
- r = safe_atou64(value, &arg_event_timeout_usec);
- if (r < 0)
- goto invalid;
- arg_event_timeout_usec *= USEC_PER_SEC;
- arg_event_timeout_warn_usec = (arg_event_timeout_usec / 3) ? : 1;
- }
+ else if (startswith(key, "udev."))
+ log_warning("Unknown udev kernel command line option \"%s\"", key);
- return 0;
-invalid:
- log_warning("invalid %s ignored: %s", full_key, value);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse \"%s=%s\", ignoring: %m", key, value);
return 0;
}