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-rw-r--r--sys/net/if.c4
-rw-r--r--sys/net/if.h2
-rw-r--r--sys/sys/sockio.h1
3 files changed, 7 insertions, 0 deletions
diff --git a/sys/net/if.c b/sys/net/if.c
index 2728141..7ffb296 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1145,6 +1145,10 @@ ifhwioctl(u_long cmd, struct ifnet *ifp, caddr_t data, struct thread *td)
ifr = (struct ifreq *)data;
switch (cmd) {
+ case SIOCGIFINDEX:
+ ifr->ifr_index = ifp->if_index;
+ break;
+
case SIOCGIFFLAGS:
ifr->ifr_flags = ifp->if_flags;
break;
diff --git a/sys/net/if.h b/sys/net/if.h
index eb4d199..83116b9 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -200,6 +200,7 @@ struct ifreq {
struct sockaddr ifru_dstaddr;
struct sockaddr ifru_broadaddr;
short ifru_flags[2];
+ short ifru_index;
int ifru_metric;
int ifru_mtu;
int ifru_phys;
@@ -219,6 +220,7 @@ struct ifreq {
#define ifr_data ifr_ifru.ifru_data /* for use by interface */
#define ifr_reqcap ifr_ifru.ifru_cap[0] /* requested capabilities */
#define ifr_curcap ifr_ifru.ifru_cap[1] /* current capabilities */
+#define ifr_index ifr_ifru.ifru_index /* interface index */
};
#define _SIZEOF_ADDR_IFREQ(ifr) \
diff --git a/sys/sys/sockio.h b/sys/sys/sockio.h
index c681f8e..03ea70c 100644
--- a/sys/sys/sockio.h
+++ b/sys/sys/sockio.h
@@ -79,6 +79,7 @@
#define SIOCDLIFADDR _IOW('i', 29, struct if_laddrreq) /* delete IF addr */
#define SIOCSIFCAP _IOW('i', 30, struct ifreq) /* set IF features */
#define SIOCGIFCAP _IOWR('i', 31, struct ifreq) /* get IF features */
+#define SIOCGIFINDEX _IOWR('i', 32, struct ifreq) /* get IF index */
#define SIOCADDMULTI _IOW('i', 49, struct ifreq) /* add m'cast addr */
#define SIOCDELMULTI _IOW('i', 50, struct ifreq) /* del m'cast addr */
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