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-rw-r--r--extensions/libipt_CLUSTERIP.c129
1 files changed, 55 insertions, 74 deletions
diff --git a/extensions/libipt_CLUSTERIP.c b/extensions/libipt_CLUSTERIP.c
index 1ab77cc..cae814b 100644
--- a/extensions/libipt_CLUSTERIP.c
+++ b/extensions/libipt_CLUSTERIP.c
@@ -15,15 +15,13 @@
#include <linux/if_ether.h>
#endif
-#include <iptables.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include "../include/linux/netfilter_ipv4/ipt_CLUSTERIP.h"
+#include <xtables.h>
+#include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
-static void
-help(void)
+static void CLUSTERIP_help(void)
{
printf(
-"CLUSTERIP target v%s options:\n"
+"CLUSTERIP target options:\n"
" --new Create a new ClusterIP\n"
" --hashmode <mode> Specify hashing mode\n"
" sourceip\n"
@@ -32,9 +30,7 @@ help(void)
" --clustermac <mac> Set clusterIP MAC address\n"
" --total-nodes <num> Set number of total nodes in cluster\n"
" --local-node <num> Set the local node number\n"
-" --hash-init <num> Set init value of the Jenkins hash\n"
-"\n",
-IPTABLES_VERSION);
+" --hash-init <num> Set init value of the Jenkins hash\n");
}
#define PARAM_NEW 0x0001
@@ -44,28 +40,23 @@ IPTABLES_VERSION);
#define PARAM_LOCALNODE 0x0010
#define PARAM_HASHINIT 0x0020
-static struct option opts[] = {
- { "new", 0, 0, '1' },
- { "hashmode", 1, 0, '2' },
- { "clustermac", 1, 0, '3' },
- { "total-nodes", 1, 0, '4' },
- { "local-node", 1, 0, '5' },
- { "hash-init", 1, 0, '6' },
- { 0 }
+static const struct option CLUSTERIP_opts[] = {
+ { "new", 0, NULL, '1' },
+ { "hashmode", 1, NULL, '2' },
+ { "clustermac", 1, NULL, '3' },
+ { "total-nodes", 1, NULL, '4' },
+ { "local-node", 1, NULL, '5' },
+ { "hash-init", 1, NULL, '6' },
+ { .name = NULL }
};
static void
-init(struct ipt_entry_target *t, unsigned int *nfcache)
-{
-}
-
-static void
parse_mac(const char *mac, char *macbuf)
{
unsigned int i = 0;
if (strlen(mac) != ETH_ALEN*3-1)
- exit_error(PARAMETER_PROBLEM, "Bad mac address `%s'", mac);
+ xtables_error(PARAMETER_PROBLEM, "Bad mac address \"%s\"", mac);
for (i = 0; i < ETH_ALEN; i++) {
long number;
@@ -78,15 +69,13 @@ parse_mac(const char *mac, char *macbuf)
&& number <= 255)
macbuf[i] = number;
else
- exit_error(PARAMETER_PROBLEM,
+ xtables_error(PARAMETER_PROBLEM,
"Bad mac address `%s'", mac);
}
}
-static int
-parse(int c, char **argv, int invert, unsigned int *flags,
- const struct ipt_entry *entry,
- struct ipt_entry_target **target)
+static int CLUSTERIP_parse(int c, char **argv, int invert, unsigned int *flags,
+ const void *entry, struct xt_entry_target **target)
{
struct ipt_clusterip_tgt_info *cipinfo
= (struct ipt_clusterip_tgt_info *)(*target)->data;
@@ -96,14 +85,14 @@ parse(int c, char **argv, int invert, unsigned int *flags,
case '1':
cipinfo->flags |= CLUSTERIP_FLAG_NEW;
if (*flags & PARAM_NEW)
- exit_error(PARAMETER_PROBLEM, "Can only specify `--new' once\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify \"--new\" once\n");
*flags |= PARAM_NEW;
break;
case '2':
if (!(*flags & PARAM_NEW))
- exit_error(PARAMETER_PROBLEM, "Can only specify hashmode combined with `--new'\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify hashmode combined with \"--new\"\n");
if (*flags & PARAM_HMODE)
- exit_error(PARAMETER_PROBLEM, "Can only specify hashmode once\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify hashmode once\n");
if (!strcmp(optarg, "sourceip"))
cipinfo->hash_mode = CLUSTERIP_HASHMODE_SIP;
else if (!strcmp(optarg, "sourceip-sourceport"))
@@ -111,48 +100,48 @@ parse(int c, char **argv, int invert, unsigned int *flags,
else if (!strcmp(optarg, "sourceip-sourceport-destport"))
cipinfo->hash_mode = CLUSTERIP_HASHMODE_SIP_SPT_DPT;
else
- exit_error(PARAMETER_PROBLEM, "Unknown hashmode `%s'\n",
+ xtables_error(PARAMETER_PROBLEM, "Unknown hashmode \"%s\"\n",
optarg);
*flags |= PARAM_HMODE;
break;
case '3':
if (!(*flags & PARAM_NEW))
- exit_error(PARAMETER_PROBLEM, "Can only specify MAC combined with `--new'\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify MAC combined with \"--new\"\n");
if (*flags & PARAM_MAC)
- exit_error(PARAMETER_PROBLEM, "Can only specify MAC once\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify MAC once\n");
parse_mac(optarg, (char *)cipinfo->clustermac);
if (!(cipinfo->clustermac[0] & 0x01))
- exit_error(PARAMETER_PROBLEM, "MAC has to be a multicast ethernet address\n");
+ xtables_error(PARAMETER_PROBLEM, "MAC has to be a multicast ethernet address\n");
*flags |= PARAM_MAC;
break;
case '4':
if (!(*flags & PARAM_NEW))
- exit_error(PARAMETER_PROBLEM, "Can only specify node number combined with `--new'\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify node number combined with \"--new\"\n");
if (*flags & PARAM_TOTALNODE)
- exit_error(PARAMETER_PROBLEM, "Can only specify total node number once\n");
- if (string_to_number(optarg, 1, CLUSTERIP_MAX_NODES, &num) < 0)
- exit_error(PARAMETER_PROBLEM, "Unable to parse `%s'\n", optarg);
- cipinfo->num_total_nodes = (u_int16_t)num;
+ xtables_error(PARAMETER_PROBLEM, "Can only specify total node number once\n");
+ if (!xtables_strtoui(optarg, NULL, &num, 1, CLUSTERIP_MAX_NODES))
+ xtables_error(PARAMETER_PROBLEM, "Unable to parse \"%s\"\n", optarg);
+ cipinfo->num_total_nodes = num;
*flags |= PARAM_TOTALNODE;
break;
case '5':
if (!(*flags & PARAM_NEW))
- exit_error(PARAMETER_PROBLEM, "Can only specify node number combined with `--new'\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify node number combined with \"--new\"\n");
if (*flags & PARAM_LOCALNODE)
- exit_error(PARAMETER_PROBLEM, "Can only specify local node number once\n");
- if (string_to_number(optarg, 1, CLUSTERIP_MAX_NODES, &num) < 0)
- exit_error(PARAMETER_PROBLEM, "Unable to parse `%s'\n", optarg);
+ xtables_error(PARAMETER_PROBLEM, "Can only specify local node number once\n");
+ if (!xtables_strtoui(optarg, NULL, &num, 1, CLUSTERIP_MAX_NODES))
+ xtables_error(PARAMETER_PROBLEM, "Unable to parse \"%s\"\n", optarg);
cipinfo->num_local_nodes = 1;
- cipinfo->local_nodes[0] = (u_int16_t)num;
+ cipinfo->local_nodes[0] = num;
*flags |= PARAM_LOCALNODE;
break;
case '6':
if (!(*flags & PARAM_NEW))
- exit_error(PARAMETER_PROBLEM, "Can only specify hash init value combined with `--new'\n");
+ xtables_error(PARAMETER_PROBLEM, "Can only specify hash init value combined with \"--new\"\n");
if (*flags & PARAM_HASHINIT)
- exit_error(PARAMETER_PROBLEM, "Can specify hash init value only once\n");
- if (string_to_number(optarg, 0, UINT_MAX, &num) < 0)
- exit_error(PARAMETER_PROBLEM, "Unable to parse `%s'\n", optarg);
+ xtables_error(PARAMETER_PROBLEM, "Can specify hash init value only once\n");
+ if (!xtables_strtoui(optarg, NULL, &num, 0, UINT_MAX))
+ xtables_error(PARAMETER_PROBLEM, "Unable to parse \"%s\"\n", optarg);
cipinfo->hash_initval = num;
*flags |= PARAM_HASHINIT;
break;
@@ -163,8 +152,7 @@ parse(int c, char **argv, int invert, unsigned int *flags,
return 1;
}
-static void
-final_check(unsigned int flags)
+static void CLUSTERIP_check(unsigned int flags)
{
if (flags == 0)
return;
@@ -173,7 +161,7 @@ final_check(unsigned int flags)
== (PARAM_NEW|PARAM_HMODE|PARAM_MAC|PARAM_TOTALNODE|PARAM_LOCALNODE))
return;
- exit_error(PARAMETER_PROBLEM, "CLUSTERIP target: Invalid parameter combination\n");
+ xtables_error(PARAMETER_PROBLEM, "CLUSTERIP target: Invalid parameter combination\n");
}
static char *hashmode2str(enum clusterip_hashmode mode)
@@ -203,13 +191,9 @@ static char *mac2str(const u_int8_t mac[ETH_ALEN])
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
return buf;
}
-
-/* Prints out the targinfo. */
-static void
-print(const struct ipt_ip *ip,
- const struct ipt_entry_target *target,
- int numeric)
+static void CLUSTERIP_print(const void *ip,
+ const struct xt_entry_target *target, int numeric)
{
const struct ipt_clusterip_tgt_info *cipinfo =
(const struct ipt_clusterip_tgt_info *)target->data;
@@ -227,9 +211,7 @@ print(const struct ipt_ip *ip,
cipinfo->hash_initval);
}
-/* Saves the union ipt_targinfo in parsable form to stdout. */
-static void
-save(const struct ipt_ip *ip, const struct ipt_entry_target *target)
+static void CLUSTERIP_save(const void *ip, const struct xt_entry_target *target)
{
const struct ipt_clusterip_tgt_info *cipinfo =
(const struct ipt_clusterip_tgt_info *)target->data;
@@ -247,22 +229,21 @@ save(const struct ipt_ip *ip, const struct ipt_entry_target *target)
cipinfo->hash_initval);
}
-static struct iptables_target clusterip = {
- .next = NULL,
+static struct xtables_target clusterip_tg_reg = {
.name = "CLUSTERIP",
- .version = IPTABLES_VERSION,
- .size = IPT_ALIGN(sizeof(struct ipt_clusterip_tgt_info)),
+ .version = XTABLES_VERSION,
+ .family = NFPROTO_IPV4,
+ .size = XT_ALIGN(sizeof(struct ipt_clusterip_tgt_info)),
.userspacesize = offsetof(struct ipt_clusterip_tgt_info, config),
- .help = &help,
- .init = &init,
- .parse = &parse,
- .final_check = &final_check,
- .print = &print,
- .save = &save,
- .extra_opts = opts
+ .help = CLUSTERIP_help,
+ .parse = CLUSTERIP_parse,
+ .final_check = CLUSTERIP_check,
+ .print = CLUSTERIP_print,
+ .save = CLUSTERIP_save,
+ .extra_opts = CLUSTERIP_opts,
};
-void ipt_CLUSTERIP_init(void)
+void libipt_CLUSTERIP_init(void)
{
- register_target(&clusterip);
+ xtables_register_target(&clusterip_tg_reg);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-08 13:44:14 +0000