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Diffstat (limited to 'extensions/libxt_LED.c')
-rw-r--r--extensions/libxt_LED.c108
1 files changed, 46 insertions, 62 deletions
diff --git a/extensions/libxt_LED.c b/extensions/libxt_LED.c
index af0e091..8622c37 100644
--- a/extensions/libxt_LED.c
+++ b/extensions/libxt_LED.c
@@ -9,23 +9,30 @@
* published by the Free Software Foundation.
*
*/
-
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
-#include <getopt.h>
-#include <stddef.h>
-
#include <xtables.h>
-
#include <linux/netfilter/xt_LED.h>
-static const struct option LED_opts[] = {
- {.name = "led-trigger-id", .has_arg = true, .val = 'i'},
- {.name = "led-delay", .has_arg = true, .val = 'd'},
- {.name = "led-always-blink", .has_arg = false, .val = 'a'},
- {.name = NULL},
+enum {
+ O_LED_TRIGGER_ID = 0,
+ O_LED_DELAY,
+ O_LED_ALWAYS_BLINK,
+};
+
+#define s struct xt_led_info
+static const struct xt_option_entry LED_opts[] = {
+ {.name = "led-trigger-id", .id = O_LED_TRIGGER_ID,
+ .flags = XTOPT_MAND, .type = XTTYPE_STRING, .min = 0,
+ .max = sizeof(((struct xt_led_info *)NULL)->id) -
+ sizeof("netfilter-")},
+ {.name = "led-delay", .id = O_LED_DELAY, .type = XTTYPE_STRING},
+ {.name = "led-always-blink", .id = O_LED_ALWAYS_BLINK,
+ .type = XTTYPE_NONE},
+ XTOPT_TABLEEND,
};
+#undef s
static void LED_help(void)
{
@@ -39,50 +46,28 @@ static void LED_help(void)
);
}
-static int LED_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_target **target)
+static void LED_parse(struct xt_option_call *cb)
{
- struct xt_led_info *led = (void *)(*target)->data;
-
- switch (c) {
- case 'i':
- xtables_param_act(XTF_NO_INVERT, "LED",
- "--led-trigger-id", invert);
- if (strlen("netfilter-") + strlen(optarg) > sizeof(led->id))
- xtables_error(PARAMETER_PROBLEM,
- "--led-trigger-id must be 16 chars or less");
- if (optarg[0] == '\0')
- xtables_error(PARAMETER_PROBLEM,
- "--led-trigger-id cannot be blank");
+ struct xt_led_info *led = cb->data;
- /* "netfilter-" + 16 char id == 26 == sizeof(led->id) */
+ xtables_option_parse(cb);
+ switch (cb->entry->id) {
+ case O_LED_TRIGGER_ID:
strcpy(led->id, "netfilter-");
- strcat(led->id, optarg);
- *flags = 1;
- return true;
-
- case 'd':
- xtables_param_act(XTF_NO_INVERT, "LED", "--led-delay", invert);
- if (strncasecmp(optarg, "inf", 3) == 0)
+ strcat(led->id, cb->arg);
+ break;
+ case O_LED_DELAY:
+ if (strncasecmp(cb->arg, "inf", 3) == 0)
led->delay = -1;
- else
- led->delay = strtoul(optarg, NULL, 0);
-
- return true;
-
- case 'a':
- if (!invert)
- led->always_blink = 1;
- return true;
+ else if (!xtables_strtoui(cb->arg, NULL, &led->delay, 0, UINT32_MAX))
+ xtables_error(PARAMETER_PROBLEM,
+ "Delay value must be within range 0..%u",
+ UINT32_MAX);
+ break;
+ case O_LED_ALWAYS_BLINK:
+ led->always_blink = 1;
+ break;
}
- return false;
-}
-
-static void LED_final_check(unsigned int flags)
-{
- if (flags == 0)
- xtables_error(PARAMETER_PROBLEM,
- "--led-trigger-id must be specified");
}
static void LED_print(const void *ip, const struct xt_entry_target *target,
@@ -91,22 +76,22 @@ static void LED_print(const void *ip, const struct xt_entry_target *target,
const struct xt_led_info *led = (void *)target->data;
const char *id = led->id + strlen("netfilter-"); /* trim off prefix */
- printf("led-trigger-id:\"");
+ printf(" led-trigger-id:\"");
/* Escape double quotes and backslashes in the ID */
while (*id != '\0') {
if (*id == '"' || *id == '\\')
printf("\\");
printf("%c", *id++);
}
- printf("\" ");
+ printf("\"");
if (led->delay == -1)
- printf("led-delay:inf ");
+ printf(" led-delay:inf");
else
- printf("led-delay:%dms ", led->delay);
+ printf(" led-delay:%dms", led->delay);
if (led->always_blink)
- printf("led-always-blink ");
+ printf(" led-always-blink");
}
static void LED_save(const void *ip, const struct xt_entry_target *target)
@@ -114,24 +99,24 @@ static void LED_save(const void *ip, const struct xt_entry_target *target)
const struct xt_led_info *led = (void *)target->data;
const char *id = led->id + strlen("netfilter-"); /* trim off prefix */
- printf("--led-trigger-id \"");
+ printf(" --led-trigger-id \"");
/* Escape double quotes and backslashes in the ID */
while (*id != '\0') {
if (*id == '"' || *id == '\\')
printf("\\");
printf("%c", *id++);
}
- printf("\" ");
+ printf("\"");
/* Only print the delay if it's not zero (the default) */
if (led->delay > 0)
- printf("--led-delay %d ", led->delay);
+ printf(" --led-delay %d", led->delay);
else if (led->delay == -1)
- printf("--led-delay inf ");
+ printf(" --led-delay inf");
/* Only print always_blink if it's not set to the default */
if (led->always_blink)
- printf("--led-always-blink ");
+ printf(" --led-always-blink");
}
static struct xtables_target led_tg_reg = {
@@ -142,11 +127,10 @@ static struct xtables_target led_tg_reg = {
.size = XT_ALIGN(sizeof(struct xt_led_info)),
.userspacesize = offsetof(struct xt_led_info, internal_data),
.help = LED_help,
- .parse = LED_parse,
- .final_check = LED_final_check,
- .extra_opts = LED_opts,
.print = LED_print,
.save = LED_save,
+ .x6_parse = LED_parse,
+ .x6_options = LED_opts,
};
void _init(void)