diff options
| author |   Neale Ranns <nranns@cisco.com> | 2020-10-05 12:26:47 +0000 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2020-10-08 06:11:07 +0000 |
| commit | 21fb4f71ee3824c8f177045f21fea258ece602a9 (patch) | |
| tree | 8ef415f172df0de141a11169cfbbd87072a0aa54 /src/vnet/mfib/mfib_itf.c | |
| parent | 27c35e30569c3904e977e7f841b8bc56f16aeb9f (diff) | |
fib: Register multicast MAC with interface for accepting interfaces
Type: fix
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: Ic6c76b65e2dcc08916373153944507a297c962c0
Diffstat (limited to 'src/vnet/mfib/mfib_itf.c')
| -rw-r--r-- | src/vnet/mfib/mfib_itf.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/src/vnet/mfib/mfib_itf.c b/src/vnet/mfib/mfib_itf.c index 33ef98764e2..decf7650c94 100644 --- a/src/vnet/mfib/mfib_itf.c +++ b/src/vnet/mfib/mfib_itf.c @@ -109,6 +109,79 @@ mfib_itf_hash_flush (mfib_itf_t *mfi) }; } +static void +mfib_itf_prefix4_to_mac (const mfib_prefix_t *pfx, + mac_address_t *mac) +{ + mac->bytes[0] = 0x01; + mac->bytes[1] = 0x0; + mac->bytes[2] = 0x5e; + mac->bytes[3] = pfx->fp_grp_addr.ip4.as_u8[1] & 0x7f; + mac->bytes[4] = pfx->fp_grp_addr.ip4.as_u8[2]; + mac->bytes[5] = pfx->fp_grp_addr.ip4.as_u8[3]; +} + +static void +mfib_itf_prefix6_to_mac (const mfib_prefix_t *pfx, + mac_address_t *mac) +{ + mac->bytes[0] = 0x33; + mac->bytes[1] = 0x33; + mac->bytes[2] = pfx->fp_grp_addr.ip6.as_u8[12]; + mac->bytes[3] = pfx->fp_grp_addr.ip6.as_u8[13]; + mac->bytes[4] = pfx->fp_grp_addr.ip6.as_u8[14]; + mac->bytes[5] = pfx->fp_grp_addr.ip6.as_u8[15]; +} + +static void +mfib_itf_prefix_to_mac (const mfib_prefix_t *pfx, + mac_address_t *mac) +{ + switch (pfx->fp_proto) + { + case FIB_PROTOCOL_IP4: + mfib_itf_prefix4_to_mac(pfx, mac); + break; + case FIB_PROTOCOL_IP6: + mfib_itf_prefix6_to_mac(pfx, mac); + break; + case FIB_PROTOCOL_MPLS: + break; + } +} + +static void +mfib_itf_mac_add_del (mfib_itf_t *itf, + const mfib_prefix_t *pfx, + int add) +{ + vnet_sw_interface_t *si; + vnet_main_t *vnm; + mac_address_t mac; + + vnm = vnet_get_main(); + mfib_itf_prefix_to_mac(pfx, &mac); + + si = vnet_get_sw_interface(vnm, itf->mfi_sw_if_index); + vnet_hw_interface_add_del_mac_address (vnet_get_main(), + si->hw_if_index, + mac.bytes, add); +} + +void +mfib_itf_mac_add (mfib_itf_t *itf, + const mfib_prefix_t *pfx) +{ + mfib_itf_mac_add_del(itf, pfx, 1); +} + +void +mfib_itf_mac_del (mfib_itf_t *itf, + const mfib_prefix_t *pfx) +{ + mfib_itf_mac_add_del(itf, pfx, 0); +} + void mfib_itf_delete (mfib_itf_t *mfi) { |