From 95d528a2fe9f1eaec11dc3256dc9dec49b557990 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 17 Mar 2010 13:07:50 +0200 Subject: tap: add interface to get device fd Will be used by vhost to attach/detach to backend. Signed-off-by: Michael S. Tsirkin Signed-off-by: Anthony Liguori --- net/tap.c | 7 +++++++ net/tap.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/net/tap.c b/net/tap.c index 672b0ee0b4..c19740b584 100644 --- a/net/tap.c +++ b/net/tap.c @@ -270,6 +270,13 @@ static void tap_poll(VLANClientState *nc, bool enable) tap_write_poll(s, enable); } +int tap_get_fd(VLANClientState *nc) +{ + TAPState *s = DO_UPCAST(TAPState, nc, nc); + assert(nc->info->type == NET_CLIENT_TYPE_TAP); + return s->fd; +} + /* fd support */ static NetClientInfo net_tap_info = { diff --git a/net/tap.h b/net/tap.h index 538a562720..a244b28f82 100644 --- a/net/tap.h +++ b/net/tap.h @@ -48,4 +48,6 @@ int tap_probe_vnet_hdr(int fd); int tap_probe_has_ufo(int fd); void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo); +int tap_get_fd(VLANClientState *vc); + #endif /* QEMU_NET_TAP_H */ -- cgit v1.2.3