diff options
| author |   Mohsin Kazmi <sykazmi@cisco.com> | 2019-04-15 13:17:55 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2019-04-16 15:53:49 +0000 |
| commit | 6c2f821179ea8d8c848b33e180936c20479b57fc (patch) | |
| tree | 90d3d3cbca1bf2b2b6704b1b6b32bb05a75205b6 | |
| parent | 58dcf5c5e6728250a61e9a498972d896308d9624 (diff) | |
tap: fix the crash [VPP-1645]
Crash will happen when someone will try to setup a tap interface
in host namespace without providing the host side of tap interface
custom name. This patch fixes the problem by using the default name
in this case.
Change-Id: Ic1eaea5abd01bc6c766d0e0fcacae29ab7a7ec45
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
(cherry picked from commit 2a6861ff7bc90c1518b68459210830052774d429)
| -rw-r--r-- | src/vnet/devices/tap/tap.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c index 388cfa34c37..91d4a811ad8 100644 --- a/src/vnet/devices/tap/tap.c +++ b/src/vnet/devices/tap/tap.c @@ -175,6 +175,9 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args) _IOCTL (vif->tap_fd, TUNSETIFF, (void *) &ifr); vif->ifindex = if_nametoindex (ifr.ifr_ifrn.ifrn_name); + if (!args->host_if_name) + args->host_if_name = (u8 *) ifr.ifr_ifrn.ifrn_name; + unsigned int offload = 0; hdrsz = sizeof (struct virtio_net_hdr_v1); if (args->tap_flags & TAP_FLAG_GSO) |