route: allow routes to be configured with expire values

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>

diff --git a/ip/iproute.c b/ip/iproute.c
index 4d86a596175f5294ecc136ea415b6186a753f68f..d5e3ebe262ae9ee6b802df868a31b96c28e14975 100644 (file)
--- a/ip/iproute.c
+++ b/ip/iproute.c
@@ -86,7 +86,7 @@ static void usage(void)
        fprintf(stderr, "           [ ssthresh NUMBER ] [ realms REALM ] [ src ADDRESS ]\n");
        fprintf(stderr, "           [ rto_min TIME ] [ hoplimit NUMBER ] [ initrwnd NUMBER ]\n");
        fprintf(stderr, "           [ features FEATURES ] [ quickack BOOL ] [ congctl NAME ]\n");
-       fprintf(stderr, "           [ pref PREF ]\n");
+       fprintf(stderr, "           [ pref PREF ] [ expires TIME ]\n");
        fprintf(stderr, "TYPE := [ unicast | local | broadcast | multicast | throw |\n");
        fprintf(stderr, "          unreachable | prohibit | blackhole | nat ]\n");
        fprintf(stderr, "TABLE_ID := [ local | main | default | all | NUMBER ]\n");
@@ -829,6 +829,7 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
        int table_ok = 0;
        int raw = 0;
        int type_ok = 0;
+       static int hz;
 
        memset(&req, 0, sizeof(req));
 
@@ -899,6 +900,14 @@ static int iproute_modify(int cmd, unsigned flags, int argc, char **argv)
                        if (rtnl_dsfield_a2n(&tos, *argv))
                                invarg("\"tos\" value is invalid\n", *argv);
                        req.r.rtm_tos = tos;
+               } else if (strcmp(*argv, "expires") == 0 ) {
+                       __u32 expires;
+                       NEXT_ARG();
+                       if (get_u32(&expires, *argv, 0))
+                               invarg("\"expires\" value is invalid\n", *argv);
+                       if (!hz)
+                               hz = get_user_hz();
+                       addattr32(&req.n, sizeof(req), RTA_EXPIRES, expires*hz);
                } else if (matches(*argv, "metric") == 0 ||
                           matches(*argv, "priority") == 0 ||
                           strcmp(*argv, "preference") == 0) {