From: Jan Engelhardt <jengelh@medozas.de>
To: kaber@trash.net
Cc: netfilter-devel@vger.kernel.org
Subject: [PATCH 02/28] libip[6]t_HL: use guided option parser
Date: Tue, 12 Apr 2011 16:23:17 +0200 [thread overview]
Message-ID: <1302618224-9449-3-git-send-email-jengelh@medozas.de> (raw)
In-Reply-To: <1302618224-9449-1-git-send-email-jengelh@medozas.de>
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
---
extensions/libip6t_HL.c | 111 ++++++++++++++++++-----------------------------
extensions/libipt_TTL.c | 110 ++++++++++++++++++-----------------------------
2 files changed, 84 insertions(+), 137 deletions(-)
diff --git a/extensions/libip6t_HL.c b/extensions/libip6t_HL.c
index 900564c..254b191 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 c2518f8..0f81280 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)
--
1.7.1
next prev parent reply other threads:[~2011-04-12 14:23 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 14:23 guided option parser, run 2 Jan Engelhardt
2011-04-12 14:23 ` [PATCH 01/28] libxtables: XTTYPE_UINT8 support Jan Engelhardt
2011-04-12 14:23 ` Jan Engelhardt [this message]
2011-04-12 14:23 ` [PATCH 03/28] libip[6]t_hl: use guided option parser Jan Engelhardt
2011-04-12 14:23 ` [PATCH 04/28] libxtables: XTTYPE_UINT32RC support Jan Engelhardt
2011-04-12 14:23 ` [PATCH 05/28] libip[6]t_ah: use guided option parser Jan Engelhardt
2011-04-12 14:23 ` [PATCH 06/28] libip6t_frag: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 07/28] libxt_esp: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 08/28] libxtables: XTTYPE_STRING support Jan Engelhardt
2011-04-12 14:23 ` [PATCH 09/28] libip[6]t_REJECT: use guided option parser Jan Engelhardt
2011-04-12 14:23 ` [PATCH 10/28] libip6t_dst: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 11/28] libip6t_hbh: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 12/28] libip[6]t_icmp: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 13/28] libip6t_ipv6header: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 14/28] libipt_ECN: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 15/28] libipt_addrtype: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 16/28] libxt_AUDIT: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 17/28] libxt_CLASSIFY: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 18/28] libxt_DSCP: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 19/28] libxt_LED: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 20/28] libxt_SECMARK: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 21/28] libxt_TCPOPTSTRIP: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 22/28] libxt_comment: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 23/28] libxt_helper: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 24/28] libxt_physdev: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 25/28] libxt_pkttype: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 26/28] libxt_state: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 27/28] libxt_time: " Jan Engelhardt
2011-04-12 14:23 ` [PATCH 28/28] libxt_u32: " Jan Engelhardt
2011-04-13 11:41 ` guided option parser, run 2 Patrick McHardy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1302618224-9449-3-git-send-email-jengelh@medozas.de \
--to=jengelh@medozas.de \
--cc=kaber@trash.net \
--cc=netfilter-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).