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authorDenys Vlasenko2017-04-07 17:00:53 +0200
committerDenys Vlasenko2017-04-07 17:00:53 +0200
commitd5342a1ad13be16eaf6b78fe57e36679406ef85e (patch)
treedceb600732d4ecddce49a8f6aa5f04036810b14f
parent1140bf39ab113aefee8079755fac618bf6314db6 (diff)
downloadbusybox-d5342a1ad13be16eaf6b78fe57e36679406ef85e.zip
busybox-d5342a1ad13be16eaf6b78fe57e36679406ef85e.tar.gz
iproute: support advmss option
function old new delta iproute_modify 1164 1221 +57 str_is_lock - 22 +22 packed_usage 31372 31382 +10 do_iproute 157 132 -25 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/1 up/down: 89/-25) Total: 64 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/ip.c2
-rw-r--r--networking/libiproute/iproute.c31
2 files changed, 20 insertions, 13 deletions
diff --git a/networking/ip.c b/networking/ip.c
index 155adcf..0d66d53 100644
--- a/networking/ip.c
+++ b/networking/ip.c
@@ -171,7 +171,7 @@
//usage: " NODE_SPEC := PREFIX"IF_FEATURE_IP_RULE(" [table TABLE_ID]")" [proto RTPROTO] [scope SCOPE] [metric METRIC]\n"
//usage: " INFO_SPEC := NH OPTIONS\n"
//usage: " NH := [via [inet|inet6] ADDRESS] [dev IFACE] [src ADDRESS] [onlink]\n"
-//usage: " OPTIONS := [mtu NUM]"
+//usage: " OPTIONS := [mtu [lock] NUM] [advmss [lock] NUM]"
//upstream man ip-route:
//======================
//ip route { show | flush } SELECTOR
diff --git a/networking/libiproute/iproute.c b/networking/libiproute/iproute.c
index 62fa6ef..fa616f8 100644
--- a/networking/libiproute/iproute.c
+++ b/networking/libiproute/iproute.c
@@ -322,17 +322,25 @@ static int FAST_FUNC print_route(const struct sockaddr_nl *who UNUSED_PARAM,
return 0;
}
+static int str_is_lock(const char *str)
+{
+ return strcmp(str, "lock") == 0;
+}
+
/* Return value becomes exitcode. It's okay to not return at all */
static int iproute_modify(int cmd, unsigned flags, char **argv)
{
/* If you add stuff here, update iproute_full_usage */
static const char keywords[] ALIGN1 =
- "src\0""via\0""mtu\0""scope\0""protocol\0"IF_FEATURE_IP_RULE("table\0")
+ "src\0""via\0"
+ "mtu\0""advmss\0"
+ "scope\0""protocol\0"IF_FEATURE_IP_RULE("table\0")
"dev\0""oif\0""to\0""metric\0""onlink\0";
enum {
ARG_src,
ARG_via,
ARG_mtu,
+ ARG_advmss,
ARG_scope,
ARG_protocol,
IF_FEATURE_IP_RULE(ARG_table,)
@@ -405,12 +413,21 @@ IF_FEATURE_IP_RULE(ARG_table,)
} else if (arg == ARG_mtu) {
unsigned mtu;
NEXT_ARG();
- if (strcmp(*argv, "lock") == 0) {
+ if (str_is_lock(*argv)) {
mxlock |= (1 << RTAX_MTU);
NEXT_ARG();
}
mtu = get_unsigned(*argv, "mtu");
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_MTU, mtu);
+ } else if (arg == ARG_advmss) {
+ unsigned mss;
+ NEXT_ARG();
+ if (str_is_lock(*argv)) {
+ mxlock |= (1 << RTAX_ADVMSS);
+ NEXT_ARG();
+ }
+ mss = get_unsigned(*argv, "advmss");
+ rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss);
} else if (arg == ARG_scope) {
uint32_t scope;
NEXT_ARG();
@@ -505,16 +522,6 @@ IF_FEATURE_IP_RULE(ARG_table,)
if (get_unsigned(&hoplimit, *argv, 0))
invarg("\"hoplimit\" value is invalid\n", *argv);
rta_addattr32(mxrta, sizeof(mxbuf), RTAX_HOPLIMIT, hoplimit);
- } else if (strcmp(*argv, "advmss") == 0) {
- unsigned mss;
- NEXT_ARG();
- if (strcmp(*argv, "lock") == 0) {
- mxlock |= (1<<RTAX_ADVMSS);
- NEXT_ARG();
- }
- if (get_unsigned(&mss, *argv, 0))
- invarg("\"mss\" value is invalid\n", *argv);
- rta_addattr32(mxrta, sizeof(mxbuf), RTAX_ADVMSS, mss);
} else if (matches(*argv, "reordering") == 0) {
unsigned reord;
NEXT_ARG();