diff options
| author |   Dave Barach <dave@barachs.net> | 2021-05-29 09:00:45 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2021-05-31 16:23:38 +0000 |
| commit | 64d20e76b9108c9158b2b538cd2312d740f48103 (patch) | |
| tree | ed41eb1a3eee970434bd224779c25c3b4fc7b0d6 /src/vnet/interface.c | |
| parent | 71ee375f7266b450d6a3d4e28247f4b12016abfb (diff) | |
interface: fix vnet_sw_interface_update_unnumbered
Unless a software interface is actually unnumbered, do not set
ip[46]_main.lookup_main.if_address_pool_index_by_sw_if_index [sw_if_index]
to ~0
Fixes this scenario:
loop create
set int state loop0 up
create sub-interface loop0 1
set interface ip addr loop0.1 192.168.1.1/24
delete sub-interface loop0.1
set int ip addr loop0 192.168.1.1/24
Type: fix
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I46141d862fa57d70b93d7bb0c105403708165264
Diffstat (limited to 'src/vnet/interface.c')
| -rw-r--r-- | src/vnet/interface.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/src/vnet/interface.c b/src/vnet/interface.c index 278cd6e50c3..44ea52a870d 100644 --- a/src/vnet/interface.c +++ b/src/vnet/interface.c @@ -1639,13 +1639,20 @@ vnet_sw_interface_update_unnumbered (u32 unnumbered_sw_if_index, } else { - si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED); - si->unnumbered_sw_if_index = (u32) ~ 0; + /* + * Unless the interface is actually unnumbered, don't + * smash e.g. if_address_pool_index_by_sw_if_index + */ + if (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) + { + si->flags &= ~(VNET_SW_INTERFACE_FLAG_UNNUMBERED); + si->unnumbered_sw_if_index = (u32) ~0; - ip4_main.lookup_main.if_address_pool_index_by_sw_if_index - [unnumbered_sw_if_index] = ~0; - ip6_main.lookup_main.if_address_pool_index_by_sw_if_index - [unnumbered_sw_if_index] = ~0; + ip4_main.lookup_main + .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0; + ip6_main.lookup_main + .if_address_pool_index_by_sw_if_index[unnumbered_sw_if_index] = ~0; + } } if (was_unnum != (si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED)) |