mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-20 14:13:16 +00:00
de6ff15129
This is a backport from the busybox repository
(192dce4b84fb32346ebc5194de7daa5da3b8d1b4); it enables the use of the
suppress_{prefixlength,ifgroup} flags for policy routing rules.
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
146 lines
5.7 KiB
Diff
146 lines
5.7 KiB
Diff
From dbac30c3784c267bbe44a2a3ebed4e827c8fe82a Mon Sep 17 00:00:00 2001
|
|
From: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
|
|
Date: Tue, 13 Jun 2017 19:06:09 +0200
|
|
Subject: [PATCH] ip rule: add suppress_{prefixlength,ifgroup} options
|
|
|
|
(cherry-picked from 192dce4b84fb32346ebc5194de7daa5da3b8d1b4)
|
|
|
|
function old new delta
|
|
iprule_modify 816 887 +71
|
|
print_rule 610 680 +70
|
|
------------------------------------------------------------------------------
|
|
(add/remove: 0/0 grow/shrink: 2/0 up/down: 141/0) Total: 141 bytes
|
|
|
|
Signed-off-by: Stefan Tomanek <stefan.tomanek@wertarbyte.de>
|
|
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
|
|
---
|
|
networking/libiproute/iprule.c | 73 ++++++++++++++++++++++++++----------------
|
|
1 file changed, 46 insertions(+), 27 deletions(-)
|
|
|
|
--- a/networking/libiproute/iprule.c
|
|
+++ b/networking/libiproute/iprule.c
|
|
@@ -17,25 +17,32 @@
|
|
#include <netinet/ip.h>
|
|
#include <arpa/inet.h>
|
|
|
|
+/* from <linux/fib_rules.h>: */
|
|
+#define FRA_SUPPRESS_IFGROUP 13
|
|
+#define FRA_SUPPRESS_PREFIXLEN 14
|
|
+
|
|
#include "ip_common.h" /* #include "libbb.h" is inside */
|
|
#include "rt_names.h"
|
|
#include "utils.h"
|
|
|
|
-/*
|
|
-static void usage(void) __attribute__((noreturn));
|
|
-
|
|
-static void usage(void)
|
|
-{
|
|
- fprintf(stderr, "Usage: ip rule [ list | add | del ] SELECTOR ACTION\n");
|
|
- fprintf(stderr, "SELECTOR := [ from PREFIX ] [ to PREFIX ] [ tos TOS ] [ fwmark FWMARK ]\n");
|
|
- fprintf(stderr, " [ dev STRING ] [ pref NUMBER ]\n");
|
|
- fprintf(stderr, "ACTION := [ table TABLE_ID ] [ nat ADDRESS ]\n");
|
|
- fprintf(stderr, " [ prohibit | reject | unreachable ]\n");
|
|
- fprintf(stderr, " [ realms [SRCREALM/]DSTREALM ]\n");
|
|
- fprintf(stderr, "TABLE_ID := [ local | main | default | NUMBER ]\n");
|
|
- exit(-1);
|
|
-}
|
|
-*/
|
|
+/* If you add stuff here, update iprule_full_usage */
|
|
+static const char keywords[] ALIGN1 =
|
|
+ "from\0""to\0""preference\0""order\0""priority\0"
|
|
+ "tos\0""fwmark\0""realms\0""table\0""lookup\0"
|
|
+ "suppress_prefixlength\0""suppress_ifgroup\0"
|
|
+ "dev\0""iif\0""nat\0""map-to\0""type\0""help\0"
|
|
+ ;
|
|
+#define keyword_preference (keywords + sizeof("from") + sizeof("to"))
|
|
+#define keyword_fwmark (keyword_preference + sizeof("preference") + sizeof("order") + sizeof("priority") + sizeof("tos"))
|
|
+#define keyword_realms (keyword_fwmark + sizeof("fwmark"))
|
|
+#define keyword_suppress_prefixlength (keyword_realms + sizeof("realms") + sizeof("table") + sizeof("lookup"))
|
|
+#define keyword_suppress_ifgroup (keyword_suppress_prefixlength + sizeof("suppress_prefixlength"))
|
|
+enum {
|
|
+ ARG_from = 1, ARG_to, ARG_preference, ARG_order, ARG_priority,
|
|
+ ARG_tos, ARG_fwmark, ARG_realms, ARG_table, ARG_lookup,
|
|
+ ARG_suppress_prefixlength, ARG_suppress_ifgroup,
|
|
+ ARG_dev, ARG_iif, ARG_nat, ARG_map_to, ARG_type, ARG_help,
|
|
+};
|
|
|
|
static int FAST_FUNC print_rule(const struct sockaddr_nl *who UNUSED_PARAM,
|
|
struct nlmsghdr *n, void *arg UNUSED_PARAM)
|
|
@@ -119,6 +126,17 @@ static int FAST_FUNC print_rule(const st
|
|
else if (r->rtm_table)
|
|
printf("lookup %s ", rtnl_rttable_n2a(r->rtm_table));
|
|
|
|
+ if (tb[FRA_SUPPRESS_PREFIXLEN]) {
|
|
+ int pl = *(uint32_t*)RTA_DATA(tb[FRA_SUPPRESS_PREFIXLEN]);
|
|
+ if (pl != -1)
|
|
+ printf("%s %d ", keyword_suppress_prefixlength, pl);
|
|
+ }
|
|
+ if (tb[FRA_SUPPRESS_IFGROUP]) {
|
|
+ int grp = *(uint32_t*)RTA_DATA(tb[FRA_SUPPRESS_IFGROUP]);
|
|
+ if (grp != -1)
|
|
+ printf("%s %d ", keyword_suppress_ifgroup, grp);
|
|
+ }
|
|
+
|
|
if (tb[RTA_FLOW]) {
|
|
uint32_t to = *(uint32_t*)RTA_DATA(tb[RTA_FLOW]);
|
|
uint32_t from = to>>16;
|
|
@@ -174,15 +192,6 @@ static int iprule_list(char **argv)
|
|
/* Return value becomes exitcode. It's okay to not return at all */
|
|
static int iprule_modify(int cmd, char **argv)
|
|
{
|
|
- static const char keywords[] ALIGN1 =
|
|
- "from\0""to\0""preference\0""order\0""priority\0"
|
|
- "tos\0""fwmark\0""realms\0""table\0""lookup\0""dev\0"
|
|
- "iif\0""nat\0""map-to\0""type\0""help\0";
|
|
- enum {
|
|
- ARG_from = 1, ARG_to, ARG_preference, ARG_order, ARG_priority,
|
|
- ARG_tos, ARG_fwmark, ARG_realms, ARG_table, ARG_lookup, ARG_dev,
|
|
- ARG_iif, ARG_nat, ARG_map_to, ARG_type, ARG_help
|
|
- };
|
|
bool table_ok = 0;
|
|
struct rtnl_handle rth;
|
|
struct {
|
|
@@ -232,7 +241,7 @@ static int iprule_modify(int cmd, char *
|
|
) {
|
|
uint32_t pref;
|
|
NEXT_ARG();
|
|
- pref = get_u32(*argv, "preference");
|
|
+ pref = get_u32(*argv, keyword_preference);
|
|
addattr32(&req.n, sizeof(req), RTA_PRIORITY, pref);
|
|
} else if (key == ARG_tos) {
|
|
uint32_t tos;
|
|
@@ -243,13 +252,13 @@ static int iprule_modify(int cmd, char *
|
|
} else if (key == ARG_fwmark) {
|
|
uint32_t fwmark;
|
|
NEXT_ARG();
|
|
- fwmark = get_u32(*argv, "fwmark");
|
|
+ fwmark = get_u32(*argv, keyword_fwmark);
|
|
addattr32(&req.n, sizeof(req), RTA_PROTOINFO, fwmark);
|
|
} else if (key == ARG_realms) {
|
|
uint32_t realm;
|
|
NEXT_ARG();
|
|
if (get_rt_realms(&realm, *argv))
|
|
- invarg_1_to_2(*argv, "realms");
|
|
+ invarg_1_to_2(*argv, keyword_realms);
|
|
addattr32(&req.n, sizeof(req), RTA_FLOW, realm);
|
|
} else if (key == ARG_table ||
|
|
key == ARG_lookup
|
|
@@ -265,6 +274,16 @@ static int iprule_modify(int cmd, char *
|
|
addattr32(&req.n, sizeof(req), RTA_TABLE, tid);
|
|
}
|
|
table_ok = 1;
|
|
+ } else if (key == ARG_suppress_prefixlength) {
|
|
+ int prefix_length;
|
|
+ NEXT_ARG();
|
|
+ prefix_length = get_u32(*argv, keyword_suppress_prefixlength);
|
|
+ addattr32(&req.n, sizeof(req), FRA_SUPPRESS_PREFIXLEN, prefix_length);
|
|
+ } else if (key == ARG_suppress_ifgroup) {
|
|
+ int grp;
|
|
+ NEXT_ARG();
|
|
+ grp = get_u32(*argv, keyword_suppress_ifgroup);
|
|
+ addattr32(&req.n, sizeof(req), FRA_SUPPRESS_IFGROUP, grp);
|
|
} else if (key == ARG_dev ||
|
|
key == ARG_iif
|
|
) {
|