diff options
| author |   Neale Ranns <nranns@cisco.com> | 2018-01-29 10:43:33 -0800 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2018-01-30 08:54:29 +0000 |
| commit | db14f5aff69311d13a0a90baa3567e92f3faa783 (patch) | |
| tree | 2ee6edb0d8b82b840fdc90b62f782ea0b95bc8f0 /src/plugins/pppoe/pppoe.c | |
| parent | bb16d3ffecd357907d01f2785ac78edf0292cfd3 (diff) | |
Allow the provider of a midchain adjacency to pass context data that is returned in the fixup function
Change-Id: I458e6e03b03e27775df33a2fd302743126d6ac44
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/pppoe/pppoe.c')
| -rw-r--r-- | src/plugins/pppoe/pppoe.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/plugins/pppoe/pppoe.c b/src/plugins/pppoe/pppoe.c index fac29c781fa..dfbe2e487c9 100644 --- a/src/plugins/pppoe/pppoe.c +++ b/src/plugins/pppoe/pppoe.c @@ -146,16 +146,23 @@ pppoe_build_rewrite (vnet_main_t * vnm, * @brief Fixup the adj rewrite post encap. Insert the packet's length */ static void -pppoe_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b0) +pppoe_fixup (vlib_main_t * vm, + ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data) { + const pppoe_session_t *t; pppoe_header_t *pppoe0; + /* update the rewrite string */ pppoe0 = vlib_buffer_get_current (b0) + sizeof (ethernet_header_t); pppoe0->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - sizeof (pppoe_header_t) + sizeof (pppoe0->ppp_proto) - sizeof (ethernet_header_t)); + /* Swap to the the packet's output interface to the encap (not the + * session) interface */ + t = data; + vnet_buffer (b0)->sw_if_index[VLIB_TX] = t->encap_if_index; } static void @@ -170,12 +177,14 @@ pppoe_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) ASSERT (ADJ_INDEX_INVALID != ai); adj = adj_get (ai); + session_id = pem->session_index_by_sw_if_index[sw_if_index]; + t = pool_elt_at_index (pem->sessions, session_id); switch (adj->lookup_next_index) { case IP_LOOKUP_NEXT_ARP: case IP_LOOKUP_NEXT_GLEAN: - adj_nbr_midchain_update_rewrite (ai, pppoe_fixup, + adj_nbr_midchain_update_rewrite (ai, pppoe_fixup, t, ADJ_FLAG_NONE, pppoe_build_rewrite (vnm, sw_if_index, @@ -187,7 +196,7 @@ pppoe_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) * Construct a partial rewrite from the known ethernet mcast dest MAC * There's no MAC fixup, so the last 2 parameters are 0 */ - adj_mcast_midchain_update_rewrite (ai, pppoe_fixup, + adj_mcast_midchain_update_rewrite (ai, pppoe_fixup, t, ADJ_FLAG_NONE, pppoe_build_rewrite (vnm, sw_if_index, @@ -207,8 +216,6 @@ pppoe_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) break; } - session_id = pem->session_index_by_sw_if_index[sw_if_index]; - t = pool_elt_at_index (pem->sessions, session_id); interface_tx_dpo_add_or_lock (vnet_link_to_dpo_proto (adj->ia_link), t->encap_if_index, &dpo); |