ip: Add support for "noprefixroute" option

The "noprefixroute" option suppresses automatic generation of a routing
table entry based on the interface's ip address.

The ifa_flags field has only 8 bit. If higher bits are set,
rta_tb[IFA_FLAGS] has to be used instead.

Signed-off-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/networking/ip.c b/networking/ip.c
index 034ee4fc8..45bf1dc0a 100644
--- a/networking/ip.c
+++ b/networking/ip.c
@@ -146,11 +146,13 @@
 //usage:#define ipaddr_trivial_usage
 //usage:       "add|del IFADDR dev IFACE | show|flush [dev IFACE] [to PREFIX]"
 //usage:#define ipaddr_full_usage "\n\n"
-//usage:       "ipaddr add|change|replace|delete dev IFACE IFADDR\n"
+//usage:       "ipaddr add|change|replace|delete dev IFACE [CONFFLAG-LIST] IFADDR\n"
 //usage:       "        IFADDR := PREFIX | ADDR peer PREFIX [broadcast ADDR|+|-]\n"
 //usage:       "                [anycast ADDR] [label STRING] [scope SCOPE]\n"
 //usage:       "        PREFIX := ADDR[/MASK]\n"
 //usage:       "        SCOPE := [host|link|global|NUMBER]\n"
+//usage:       "        CONFFLAG-LIST := [CONFFLAG-LIST] CONFFLAG\n"
+//usage:       "        CONFFLAG := [noprefixroute]\n"
 //usage:       "ipaddr show|flush [dev IFACE] [scope SCOPE] [to PREFIX] [label PATTERN]"
 //usage:
 //--------------123456789.123456789.123456789.123456789.123456789.123456789.123456789.123....79