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-rw-r--r--extensions/libip6t_HL.c111
-rw-r--r--extensions/libipt_TTL.c110
2 files changed, 84 insertions, 137 deletions
diff --git a/extensions/libip6t_HL.c b/extensions/libip6t_HL.c
index 900564c4..254b1914 100644
--- a/extensions/libip6t_HL.c
+++ b/extensions/libip6t_HL.c
@@ -4,17 +4,33 @@
* Based on HW's ttl target
* This program is distributed under the terms of GNU GPL
*/
-
-#include <getopt.h>
-#include <stdbool.h>
#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
#include <xtables.h>
-
#include <linux/netfilter_ipv6/ip6t_HL.h>
-#define IP6T_HL_USED 1
+enum {
+ O_HL_SET = 0,
+ O_HL_INC,
+ O_HL_DEC,
+ F_HL_SET = 1 << O_HL_SET,
+ F_HL_INC = 1 << O_HL_INC,
+ F_HL_DEC = 1 << O_HL_DEC,
+ F_ANY = F_HL_SET | F_HL_INC | F_HL_DEC,
+};
+
+#define s struct ip6t_HL_info
+static const struct xt_option_entry HL_opts[] = {
+ {.name = "ttl-set", .type = XTTYPE_UINT8, .id = O_HL_SET,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, hop_limit)},
+ {.name = "ttl-dec", .type = XTTYPE_UINT8, .id = O_HL_DEC,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, hop_limit),
+ .min = 1},
+ {.name = "ttl-inc", .type = XTTYPE_UINT8, .id = O_HL_INC,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, hop_limit),
+ .min = 1},
+ XTOPT_TABLEEND,
+};
+#undef s
static void HL_help(void)
{
@@ -25,63 +41,27 @@ static void HL_help(void)
" --hl-inc value Increment HL by <value 1-255>\n");
}
-static int HL_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_target **target)
+static void HL_parse(struct xt_option_call *cb)
{
- struct ip6t_HL_info *info = (struct ip6t_HL_info *) (*target)->data;
- unsigned int value;
-
- if (*flags & IP6T_HL_USED) {
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify HL option twice");
+ struct ip6t_HL_info *info = cb->data;
+
+ xtables_option_parse(cb);
+ switch (cb->entry->id) {
+ case O_HL_SET:
+ info->mode = IP6T_HL_SET;
+ break;
+ case O_HL_INC:
+ info->mode = IP6T_HL_INC;
+ break;
+ case O_HL_DEC:
+ info->mode = IP6T_HL_DEC;
+ break;
}
-
- if (!optarg)
- xtables_error(PARAMETER_PROBLEM,
- "HL: You must specify a value");
-
- if (xtables_check_inverse(optarg, &invert, NULL, 0, argv))
- xtables_error(PARAMETER_PROBLEM,
- "HL: unexpected `!'");
-
- if (!xtables_strtoui(optarg, NULL, &value, 0, UINT8_MAX))
- xtables_error(PARAMETER_PROBLEM,
- "HL: Expected value between 0 and 255");
-
- switch (c) {
-
- case '1':
- info->mode = IP6T_HL_SET;
- break;
-
- case '2':
- if (value == 0) {
- xtables_error(PARAMETER_PROBLEM,
- "HL: decreasing by 0?");
- }
-
- info->mode = IP6T_HL_DEC;
- break;
-
- case '3':
- if (value == 0) {
- xtables_error(PARAMETER_PROBLEM,
- "HL: increasing by 0?");
- }
-
- info->mode = IP6T_HL_INC;
- break;
- }
-
- info->hop_limit = value;
- *flags |= IP6T_HL_USED;
-
- return 1;
}
-static void HL_check(unsigned int flags)
+static void HL_check(struct xt_fcheck_call *cb)
{
- if (!(flags & IP6T_HL_USED))
+ if (!(cb->xflags & F_ANY))
xtables_error(PARAMETER_PROBLEM,
"HL: You must specify an action");
}
@@ -127,13 +107,6 @@ static void HL_print(const void *ip, const struct xt_entry_target *target,
printf(" %u", info->hop_limit);
}
-static const struct option HL_opts[] = {
- {.name = "hl-set", .has_arg = true, .val = '1'},
- {.name = "hl-dec", .has_arg = true, .val = '2'},
- {.name = "hl-inc", .has_arg = true, .val = '3'},
- XT_GETOPT_TABLEEND,
-};
-
static struct xtables_target hl_tg6_reg = {
.name = "HL",
.version = XTABLES_VERSION,
@@ -141,11 +114,11 @@ static struct xtables_target hl_tg6_reg = {
.size = XT_ALIGN(sizeof(struct ip6t_HL_info)),
.userspacesize = XT_ALIGN(sizeof(struct ip6t_HL_info)),
.help = HL_help,
- .parse = HL_parse,
- .final_check = HL_check,
.print = HL_print,
.save = HL_save,
- .extra_opts = HL_opts,
+ .x6_parse = HL_parse,
+ .x6_fcheck = HL_check,
+ .x6_options = HL_opts,
};
void _init(void)
diff --git a/extensions/libipt_TTL.c b/extensions/libipt_TTL.c
index c2518f86..0f81280b 100644
--- a/extensions/libipt_TTL.c
+++ b/extensions/libipt_TTL.c
@@ -3,16 +3,33 @@
*
* This program is distributed under the terms of GNU GPL
*/
-#include <stdbool.h>
#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
#include <xtables.h>
-
#include <linux/netfilter_ipv4/ipt_TTL.h>
-#define IPT_TTL_USED 1
+enum {
+ O_TTL_SET = 0,
+ O_TTL_INC,
+ O_TTL_DEC,
+ F_TTL_SET = 1 << O_TTL_SET,
+ F_TTL_INC = 1 << O_TTL_INC,
+ F_TTL_DEC = 1 << O_TTL_DEC,
+ F_ANY = F_TTL_SET | F_TTL_INC | F_TTL_DEC,
+};
+
+#define s struct ipt_TTL_info
+static const struct xt_option_entry TTL_opts[] = {
+ {.name = "ttl-set", .type = XTTYPE_UINT8, .id = O_TTL_SET,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, ttl)},
+ {.name = "ttl-dec", .type = XTTYPE_UINT8, .id = O_TTL_DEC,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, ttl),
+ .min = 1},
+ {.name = "ttl-inc", .type = XTTYPE_UINT8, .id = O_TTL_INC,
+ .excl = F_ANY, .flags = XTOPT_PUT, XTOPT_POINTER(s, ttl),
+ .min = 1},
+ XTOPT_TABLEEND,
+};
+#undef s
static void TTL_help(void)
{
@@ -23,63 +40,27 @@ static void TTL_help(void)
" --ttl-inc value Increment TTL by <value 1-255>\n");
}
-static int TTL_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_target **target)
+static void TTL_parse(struct xt_option_call *cb)
{
- struct ipt_TTL_info *info = (struct ipt_TTL_info *) (*target)->data;
- unsigned int value;
-
- if (*flags & IPT_TTL_USED) {
- xtables_error(PARAMETER_PROBLEM,
- "Can't specify TTL option twice");
- }
-
- if (!optarg)
- xtables_error(PARAMETER_PROBLEM,
- "TTL: You must specify a value");
-
- if (xtables_check_inverse(optarg, &invert, NULL, 0, argv))
- xtables_error(PARAMETER_PROBLEM,
- "TTL: unexpected `!'");
-
- if (!xtables_strtoui(optarg, NULL, &value, 0, UINT8_MAX))
- xtables_error(PARAMETER_PROBLEM,
- "TTL: Expected value between 0 and 255");
-
- switch (c) {
-
- case '1':
- info->mode = IPT_TTL_SET;
- break;
-
- case '2':
- if (value == 0) {
- xtables_error(PARAMETER_PROBLEM,
- "TTL: decreasing by 0?");
- }
-
- info->mode = IPT_TTL_DEC;
- break;
-
- case '3':
- if (value == 0) {
- xtables_error(PARAMETER_PROBLEM,
- "TTL: increasing by 0?");
- }
-
- info->mode = IPT_TTL_INC;
- break;
+ struct ipt_TTL_info *info = cb->data;
+
+ xtables_option_parse(cb);
+ switch (cb->entry->id) {
+ case O_TTL_SET:
+ info->mode = IPT_TTL_SET;
+ break;
+ case O_TTL_DEC:
+ info->mode = IPT_TTL_DEC;
+ break;
+ case O_TTL_INC:
+ info->mode = IPT_TTL_INC;
+ break;
}
-
- info->ttl = value;
- *flags |= IPT_TTL_USED;
-
- return 1;
}
-static void TTL_check(unsigned int flags)
+static void TTL_check(struct xt_fcheck_call *cb)
{
- if (!(flags & IPT_TTL_USED))
+ if (!(cb->xflags & F_ANY))
xtables_error(PARAMETER_PROBLEM,
"TTL: You must specify an action");
}
@@ -125,13 +106,6 @@ static void TTL_print(const void *ip, const struct xt_entry_target *target,
printf(" %u", info->ttl);
}
-static const struct option TTL_opts[] = {
- {.name = "ttl-set", .has_arg = true, .val = '1'},
- {.name = "ttl-dec", .has_arg = true, .val = '2'},
- {.name = "ttl-inc", .has_arg = true, .val = '3'},
- XT_GETOPT_TABLEEND,
-};
-
static struct xtables_target ttl_tg_reg = {
.name = "TTL",
.version = XTABLES_VERSION,
@@ -139,11 +113,11 @@ static struct xtables_target ttl_tg_reg = {
.size = XT_ALIGN(sizeof(struct ipt_TTL_info)),
.userspacesize = XT_ALIGN(sizeof(struct ipt_TTL_info)),
.help = TTL_help,
- .parse = TTL_parse,
- .final_check = TTL_check,
.print = TTL_print,
.save = TTL_save,
- .extra_opts = TTL_opts,
+ .x6_parse = TTL_parse,
+ .x6_fcheck = TTL_check,
+ .x6_options = TTL_opts,
};
void _init(void)
generated by cgit v1.2.3 (git 2.25.0) at 2024-11-16 12:00:18 +0000