Move libipt_iprange to libxt_iprange.
Signed-off-by: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
---
extensions/libipt_iprange.c | 175 -----------------------------
extensions/libipt_iprange.man | 7 -
extensions/libxt_iprange.c | 170 ++++++++++++++++++++++++++++
extensions/libxt_iprange.man | 7 +
include/linux/netfilter/xt_iprange.h | 17 ++
include/linux/netfilter_ipv4/ipt_iprange.h | 8 -
7 files changed, 198 insertions(+), 188 deletions(-)
Index: iptables-modules/extensions/libipt_iprange.c
===================================================================
--- iptables-modules.orig/extensions/libipt_iprange.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/* Shared library add-on to iptables to add IP range matching support. */
-#include <stdio.h>
-#include <netdb.h>
-#include <string.h>
-#include <stdlib.h>
-#include <getopt.h>
-
-#include <iptables.h>
-#include <linux/netfilter_ipv4/ipt_iprange.h>
-
-/* Function which prints out usage message. */
-static void iprange_help(void)
-{
- printf(
-"iprange match v%s options:\n"
-"[!] --src-range ip-ip Match source IP in the specified range\n"
-"[!] --dst-range ip-ip Match destination IP in the specified range\n"
-"\n",
-IPTABLES_VERSION);
-}
-
-static const struct option iprange_opts[] = {
- { "src-range", 1, NULL, '1' },
- { "dst-range", 1, NULL, '2' },
- { }
-};
-
-static void
-parse_iprange(char *arg, struct ipt_iprange *range)
-{
- char *dash;
- const struct in_addr *ip;
-
- dash = strchr(arg, '-');
- if (dash)
- *dash = '\0';
-
- ip = numeric_to_ipaddr(arg);
- if (!ip)
- exit_error(PARAMETER_PROBLEM, "iprange match: Bad IP address `%s'\n",
- arg);
- range->min_ip = ip->s_addr;
-
- if (dash) {
- ip = numeric_to_ipaddr(dash+1);
- if (!ip)
- exit_error(PARAMETER_PROBLEM, "iprange match: Bad IP address `%s'\n",
- dash+1);
- range->max_ip = ip->s_addr;
- } else
- range->max_ip = range->min_ip;
-}
-
-/* Function which parses command options; returns true if it
- ate an option */
-static int iprange_parse(int c, char **argv, int invert, unsigned int *flags,
- const void *entry, struct xt_entry_match **match)
-{
- struct ipt_iprange_info *info = (struct ipt_iprange_info *)(*match)->data;
-
- switch (c) {
- case '1':
- if (*flags & IPRANGE_SRC)
- exit_error(PARAMETER_PROBLEM,
- "iprange match: Only use --src-range ONCE!");
- *flags |= IPRANGE_SRC;
-
- info->flags |= IPRANGE_SRC;
- check_inverse(optarg, &invert, &optind, 0);
- if (invert) {
- info->flags |= IPRANGE_SRC_INV;
- }
- parse_iprange(optarg, &info->src);
-
- break;
-
- case '2':
- if (*flags & IPRANGE_DST)
- exit_error(PARAMETER_PROBLEM,
- "iprange match: Only use --dst-range ONCE!");
- *flags |= IPRANGE_DST;
-
- info->flags |= IPRANGE_DST;
- check_inverse(optarg, &invert, &optind, 0);
- if (invert)
- info->flags |= IPRANGE_DST_INV;
-
- parse_iprange(optarg, &info->dst);
-
- break;
-
- default:
- return 0;
- }
- return 1;
-}
-
-/* Final check; must have specified --src-range or --dst-range. */
-static void iprange_check(unsigned int flags)
-{
- if (!flags)
- exit_error(PARAMETER_PROBLEM,
- "iprange match: You must specify `--src-range' or `--dst-range'");
-}
-
-static void
-print_iprange(const struct ipt_iprange *range)
-{
- const unsigned char *byte_min, *byte_max;
-
- byte_min = (const unsigned char *) &(range->min_ip);
- byte_max = (const unsigned char *) &(range->max_ip);
- printf("%d.%d.%d.%d-%d.%d.%d.%d ",
- byte_min[0], byte_min[1], byte_min[2], byte_min[3],
- byte_max[0], byte_max[1], byte_max[2], byte_max[3]);
-}
-
-/* Prints out the info. */
-static void iprange_print(const void *ip, const struct xt_entry_match *match,
- int numeric)
-{
- struct ipt_iprange_info *info = (struct ipt_iprange_info *)match->data;
-
- if (info->flags & IPRANGE_SRC) {
- printf("source IP range ");
- if (info->flags & IPRANGE_SRC_INV)
- printf("! ");
- print_iprange(&info->src);
- }
- if (info->flags & IPRANGE_DST) {
- printf("destination IP range ");
- if (info->flags & IPRANGE_DST_INV)
- printf("! ");
- print_iprange(&info->dst);
- }
-}
-
-/* Saves the union ipt_info in parsable form to stdout. */
-static void iprange_save(const void *ip, const struct xt_entry_match *match)
-{
- struct ipt_iprange_info *info = (struct ipt_iprange_info *)match->data;
-
- if (info->flags & IPRANGE_SRC) {
- if (info->flags & IPRANGE_SRC_INV)
- printf("! ");
- printf("--src-range ");
- print_iprange(&info->src);
- if (info->flags & IPRANGE_DST)
- fputc(' ', stdout);
- }
- if (info->flags & IPRANGE_DST) {
- if (info->flags & IPRANGE_DST_INV)
- printf("! ");
- printf("--dst-range ");
- print_iprange(&info->dst);
- }
-}
-
-static struct iptables_match iprange_match = {
- .name = "iprange",
- .version = IPTABLES_VERSION,
- .size = IPT_ALIGN(sizeof(struct ipt_iprange_info)),
- .userspacesize = IPT_ALIGN(sizeof(struct ipt_iprange_info)),
- .help = iprange_help,
- .parse = iprange_parse,
- .final_check = iprange_check,
- .print = iprange_print,
- .save = iprange_save,
- .extra_opts = iprange_opts,
-};
-
-void _init(void)
-{
- register_match(&iprange_match);
-}
Index: iptables-modules/extensions/libipt_iprange.man
===================================================================
--- iptables-modules.orig/extensions/libipt_iprange.man
+++ /dev/null
@@ -1,7 +0,0 @@
-This matches on a given arbitrary range of IPv4 addresses
-.TP
-.BI "[!]" "--src-range " "ip-ip"
-Match source IP in the specified range.
-.TP
-.BI "[!]" "--dst-range " "ip-ip"
-Match destination IP in the specified range.
Index: iptables-modules/extensions/libxt_iprange.c
===================================================================
--- /dev/null
+++ iptables-modules/extensions/libxt_iprange.c
@@ -0,0 +1,170 @@
+/* Shared library add-on to iptables to add IP range matching support. */
+#include <stdio.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <getopt.h>
+
+#include <iptables.h>
+#include <linux/netfilter_ipv4/ipt_iprange.h>
+
+static void iprange_mt_help(void)
+{
+ printf(
+"iprange match options:\n"
+"[!] --src-range ip-ip Match source IP in the specified range\n"
+"[!] --dst-range ip-ip Match destination IP in the specified range\n"
+"\n");
+}
+
+static const struct option iprange_mt_opts[] = {
+ {.name = "src-range", .has_arg = true, .val = '1'},
+ {.name = "dst-range", .has_arg = true, .val = '2'},
+ {},
+};
+
+static void
+parse_iprange(char *arg, struct ipt_iprange *range)
+{
+ char *dash;
+ const struct in_addr *ip;
+
+ dash = strchr(arg, '-');
+ if (dash != NULL)
+ *dash = '\0';
+
+ ip = numeric_to_ipaddr(arg);
+ if (ip != NULL)
+ exit_error(PARAMETER_PROBLEM, "iprange match: Bad IP address `%s'\n",
+ arg);
+ range->min_ip = ip->s_addr;
+
+ if (dash != NULL) {
+ ip = numeric_to_ipaddr(dash+1);
+ if (ip != NULL)
+ exit_error(PARAMETER_PROBLEM, "iprange match: Bad IP address `%s'\n",
+ dash+1);
+ range->max_ip = ip->s_addr;
+ } else {
+ range->max_ip = range->min_ip;
+ }
+}
+
+static int iprange_parse(int c, char **argv, int invert, unsigned int *flags,
+ const void *entry, struct xt_entry_match **match)
+{
+ struct ipt_iprange_info *info = (struct ipt_iprange_info *)(*match)->data;
+
+ switch (c) {
+ case '1':
+ if (*flags & IPRANGE_SRC)
+ exit_error(PARAMETER_PROBLEM,
+ "iprange match: Only use --src-range ONCE!");
+ *flags |= IPRANGE_SRC;
+
+ info->flags |= IPRANGE_SRC;
+ check_inverse(optarg, &invert, &optind, 0);
+ if (invert)
+ info->flags |= IPRANGE_SRC_INV;
+ parse_iprange(optarg, &info->src);
+
+ break;
+
+ case '2':
+ if (*flags & IPRANGE_DST)
+ exit_error(PARAMETER_PROBLEM,
+ "iprange match: Only use --dst-range ONCE!");
+ *flags |= IPRANGE_DST;
+
+ info->flags |= IPRANGE_DST;
+ check_inverse(optarg, &invert, &optind, 0);
+ if (invert)
+ info->flags |= IPRANGE_DST_INV;
+
+ parse_iprange(optarg, &info->dst);
+
+ break;
+
+ default:
+ return 0;
+ }
+ return 1;
+}
+
+static void iprange_mt_check(unsigned int flags)
+{
+ if (flags == 0)
+ exit_error(PARAMETER_PROBLEM,
+ "iprange match: You must specify `--src-range' or `--dst-range'");
+}
+
+static void
+print_iprange(const struct ipt_iprange *range)
+{
+ const unsigned char *byte_min, *byte_max;
+
+ byte_min = (const unsigned char *)&range->min_ip;
+ byte_max = (const unsigned char *)&range->max_ip;
+ printf("%u.%u.%u.%u-%u.%u.%u.%u ",
+ byte_min[0], byte_min[1], byte_min[2], byte_min[3],
+ byte_max[0], byte_max[1], byte_max[2], byte_max[3]);
+}
+
+static void iprange_print(const void *ip, const struct xt_entry_match *match,
+ int numeric)
+{
+ const struct ipt_iprange_info *info = (const void *)match->data;
+
+ if (info->flags & IPRANGE_SRC) {
+ printf("source IP range ");
+ if (info->flags & IPRANGE_SRC_INV)
+ printf("! ");
+ print_iprange(&info->src);
+ }
+ if (info->flags & IPRANGE_DST) {
+ printf("destination IP range ");
+ if (info->flags & IPRANGE_DST_INV)
+ printf("! ");
+ print_iprange(&info->dst);
+ }
+}
+
+static void iprange_save(const void *ip, const struct xt_entry_match *match)
+{
+ const struct ipt_iprange_info *info = (const void *)match->data;
+
+ if (info->flags & IPRANGE_SRC) {
+ if (info->flags & IPRANGE_SRC_INV)
+ printf("! ");
+ printf("--src-range ");
+ print_iprange(&info->src);
+ if (info->flags & IPRANGE_DST)
+ fputc(' ', stdout);
+ }
+ if (info->flags & IPRANGE_DST) {
+ if (info->flags & IPRANGE_DST_INV)
+ printf("! ");
+ printf("--dst-range ");
+ print_iprange(&info->dst);
+ }
+}
+
+static struct xtables_match iprange_match = {
+ .version = IPTABLES_VERSION,
+ .name = "iprange",
+ .revision = 0,
+ .family = AF_INET,
+ .size = XT_ALIGN(sizeof(struct ipt_iprange_info)),
+ .userspacesize = XT_ALIGN(sizeof(struct ipt_iprange_info)),
+ .help = iprange_mt_help,
+ .parse = iprange_parse,
+ .final_check = iprange_mt_check,
+ .print = iprange_print,
+ .save = iprange_save,
+ .extra_opts = iprange_mt_opts,
+};
+
+void _init(void)
+{
+ xtables_register_match(&iprange_match);
+}
Index: iptables-modules/extensions/libxt_iprange.man
===================================================================
--- /dev/null
+++ iptables-modules/extensions/libxt_iprange.man
@@ -0,0 +1,7 @@
+This matches on a given arbitrary range of IP addresses.
+.TP
+[\fB!\fR] \fB--src-range\fR \fIfrom\fR-\fIto\fR
+Match source IP in the specified range.
+.TP
+[\fB!\fR] \fB--dst-range\fR \fIfrom\fR-\fIto\fR
+Match destination IP in the specified range.
Index: iptables-modules/include/linux/netfilter/xt_iprange.h
===================================================================
--- /dev/null
+++ iptables-modules/include/linux/netfilter/xt_iprange.h
@@ -0,0 +1,17 @@
+#ifndef _LINUX_NETFILTER_XT_IPRANGE_H
+#define _LINUX_NETFILTER_XT_IPRANGE_H 1
+
+enum {
+ IPRANGE_SRC = 1 << 0, /* match source IP address */
+ IPRANGE_DST = 1 << 1, /* match destination IP address */
+ IPRANGE_SRC_INV = 1 << 4, /* negate the condition */
+ IPRANGE_DST_INV = 1 << 5, /* -"- */
+};
+
+struct xt_iprange_mtinfo {
+ union nf_inet_addr src_min, src_max;
+ union nf_inet_addr dst_min, dst_max;
+ u_int8_t flags;
+};
+
+#endif /* _LINUX_NETFILTER_XT_IPRANGE_H */
Index: iptables-modules/include/linux/netfilter_ipv4/ipt_iprange.h
===================================================================
--- iptables-modules.orig/include/linux/netfilter_ipv4/ipt_iprange.h
+++ iptables-modules/include/linux/netfilter_ipv4/ipt_iprange.h
@@ -1,14 +1,12 @@
#ifndef _IPT_IPRANGE_H
#define _IPT_IPRANGE_H
-#define IPRANGE_SRC 0x01 /* Match source IP address */
-#define IPRANGE_DST 0x02 /* Match destination IP address */
-#define IPRANGE_SRC_INV 0x10 /* Negate the condition */
-#define IPRANGE_DST_INV 0x20 /* Negate the condition */
+#include <linux/types.h>
+#include <linux/netfilter/xt_iprange.h>
struct ipt_iprange {
/* Inclusive: network order. */
- u_int32_t min_ip, max_ip;
+ __be32 min_ip, max_ip;
};
struct ipt_iprange_info
-
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