X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fipip%2Fipip.c;h=a5e46c41d6c66dc4d2c89774bd9fec7d07f9ef30;hb=7c03ed4;hp=82c961cddddacfe16c59729ad24d4f9d3c8d897c;hpb=fe7d4a2e31529eed5416b38b520fdc84687df03c;p=vpp.git diff --git a/src/vnet/ipip/ipip.c b/src/vnet/ipip/ipip.c index 82c961cdddd..a5e46c41d6c 100644 --- a/src/vnet/ipip/ipip.c +++ b/src/vnet/ipip/ipip.c @@ -74,6 +74,8 @@ ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index, ip4->src_address.as_u32 = t->tunnel_src.ip4.as_u32; ip4->dst_address.as_u32 = t->tunnel_dst.ip4.as_u32; ip4->checksum = ip4_header_checksum (ip4); + if (t->tc_tos != 0xFF) + ip4->tos = t->tc_tos; break; case IPIP_TRANSPORT_IP6: @@ -81,6 +83,8 @@ ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index, ip6 = (ip6_header_t *) rewrite; ip6->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (6 << 28); + if (t->tc_tos != 0xFF) + ip6_set_traffic_class_network_order (ip6, t->tc_tos); ip6->hop_limit = 64; /* fixup ip6 header length and protocol after-the-fact */ ip6->src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0]; @@ -88,6 +92,7 @@ ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index, ip6->dst_address.as_u64[0] = t->tunnel_dst.ip6.as_u64[0]; ip6->dst_address.as_u64[1] = t->tunnel_dst.ip6.as_u64[1]; break; + default: /* pass through */ ; @@ -100,11 +105,29 @@ ipip4_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b, const void *data) { ip4_header_t *ip4; + const ipip_tunnel_t *t = data; ip4 = vlib_buffer_get_current (b); ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b)); - ip4->protocol = - adj->ia_link == VNET_LINK_IP6 ? IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP; + switch (adj->ia_link) + { + case VNET_LINK_IP6: + ip4->protocol = IP_PROTOCOL_IPV6; + if (t->tc_tos == 0xFF) + ip4->tos = + ip6_traffic_class_network_order ((const ip6_header_t *) (ip4 + 1)); + break; + + case VNET_LINK_IP4: + ip4->protocol = IP_PROTOCOL_IP_IN_IP; + if (t->tc_tos == 0xFF) + ip4->tos = ((ip4_header_t *) (ip4 + 1))->tos; + break; + + default: + break; + } + ip4->checksum = ip4_header_checksum (ip4); } @@ -113,13 +136,36 @@ ipip6_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b, const void *data) { ip6_header_t *ip6; + const ipip_tunnel_t *t = data; + + /* Must set locally originated otherwise we're not allowed to + fragment the packet later */ + b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED; ip6 = vlib_buffer_get_current (b); ip6->payload_length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) - sizeof (*ip6)); - ip6->protocol = - adj->ia_link == VNET_LINK_IP6 ? IP_PROTOCOL_IPV6 : IP_PROTOCOL_IP_IN_IP; + switch (adj->ia_link) + { + case VNET_LINK_IP6: + ip6->protocol = IP_PROTOCOL_IPV6; + if (t->tc_tos == 0xFF) + ip6_set_traffic_class_network_order (ip6, + ip6_traffic_class_network_order ((const ip6_header_t *) (ip6 + 1))); + break; + + case VNET_LINK_IP4: + ip6->protocol = IP_PROTOCOL_IP_IN_IP; + if (t->tc_tos == 0xFF) + ip6_set_traffic_class_network_order (ip6, + ((ip4_header_t *) (ip6 + + 1))->tos); + break; + + default: + break; + } } static void @@ -140,46 +186,15 @@ ipip_tunnel_stack (adj_index_t ai) VNET_HW_INTERFACE_FLAG_LINK_UP) == 0) { adj_nbr_midchain_unstack (ai); - return; } - - dpo_id_t tmp = DPO_INVALID; - fib_forward_chain_type_t fib_fwd = - t->transport == - IPIP_TRANSPORT_IP6 ? FIB_FORW_CHAIN_TYPE_UNICAST_IP6 : - FIB_FORW_CHAIN_TYPE_UNICAST_IP4; - - fib_entry_contribute_forwarding (t->p2p.fib_entry_index, fib_fwd, &tmp); - if (DPO_LOAD_BALANCE == tmp.dpoi_type) + else { - /* - * post IPIP rewrite we will load-balance. However, the IPIP encap - * is always the same for this adjacency/tunnel and hence the IP/IPIP - * src,dst hash is always the same result too. So we do that hash now and - * stack on the choice. - * If the choice is an incomplete adj then we will need a poke when - * it becomes complete. This happens since the adj update walk propagates - * as far a recursive paths. - */ - const dpo_id_t *choice; - load_balance_t *lb; - int hash; - - lb = load_balance_get (tmp.dpoi_index); - - if (fib_fwd == FIB_FORW_CHAIN_TYPE_UNICAST_IP4) - hash = ip4_compute_flow_hash ((ip4_header_t *) adj_get_rewrite (ai), - lb->lb_hash_config); - else - hash = ip6_compute_flow_hash ((ip6_header_t *) adj_get_rewrite (ai), - lb->lb_hash_config); - choice = - load_balance_get_bucket_i (lb, hash & lb->lb_n_buckets_minus_1); - dpo_copy (&tmp, choice); + adj_nbr_midchain_stack_on_fib_entry + (ai, + t->p2p.fib_entry_index, + (t->transport == IPIP_TRANSPORT_IP6) ? + FIB_FORW_CHAIN_TYPE_UNICAST_IP6 : FIB_FORW_CHAIN_TYPE_UNICAST_IP4); } - - adj_nbr_midchain_stack (ai, &tmp); - dpo_reset (&tmp); } static adj_walk_rc_t @@ -207,24 +222,24 @@ ipip_tunnel_restack (ipip_tunnel_t * gt) void ipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai) { - ipip_tunnel_t *t; adj_midchain_fixup_t f; + ipip_tunnel_t *t; + adj_flags_t af; t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index); if (!t) return; f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup; - - adj_nbr_midchain_update_rewrite (ai, f, NULL, - (VNET_LINK_ETHERNET == - adj_get_link_type (ai) ? - ADJ_FLAG_MIDCHAIN_NO_COUNT : - ADJ_FLAG_NONE), ipip_build_rewrite (vnm, - sw_if_index, - adj_get_link_type - (ai), - NULL)); + af = ADJ_FLAG_MIDCHAIN_IP_STACK; + if (VNET_LINK_ETHERNET == adj_get_link_type (ai)) + af |= ADJ_FLAG_MIDCHAIN_NO_COUNT; + + adj_nbr_midchain_update_rewrite (ai, f, t, af, + ipip_build_rewrite (vnm, + sw_if_index, + adj_get_link_type + (ai), NULL)); ipip_tunnel_stack (ai); } @@ -313,7 +328,7 @@ ipip_tunnel_t * ipip_tunnel_db_find_by_sw_if_index (u32 sw_if_index) { ipip_main_t *gm = &ipip_main; - if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index) + if (vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) return NULL; u32 ti = gm->tunnel_index_by_sw_if_index[sw_if_index]; if (ti == ~0) @@ -420,7 +435,7 @@ ipip_fib_delete (ipip_tunnel_t * t) int ipip_add_tunnel (ipip_transport_t transport, u32 instance, ip46_address_t * src, ip46_address_t * dst, - u32 fib_index, u32 * sw_if_indexp) + u32 fib_index, u8 tc_tos, u32 * sw_if_indexp) { ipip_main_t *gm = &ipip_main; vnet_main_t *vnm = gm->vnet_main; @@ -439,7 +454,7 @@ ipip_add_tunnel (ipip_transport_t transport, return VNET_API_ERROR_IF_ALREADY_EXISTS; pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES); - memset (t, 0, sizeof (*t)); + clib_memset (t, 0, sizeof (*t)); /* Reconcile the real dev_instance and a possible requested instance */ u32 t_idx = t - gm->tunnels; /* tunnel index (or instance) */ @@ -467,6 +482,7 @@ ipip_add_tunnel (ipip_transport_t transport, t->hw_if_index = hw_if_index; t->fib_index = fib_index; t->sw_if_index = sw_if_index; + t->tc_tos = tc_tos; t->transport = transport; vec_validate_init_empty (gm->tunnel_index_by_sw_if_index, sw_if_index, ~0); @@ -483,10 +499,8 @@ ipip_add_tunnel (ipip_transport_t transport, hi->min_packet_bytes = 64 + sizeof (ip6_header_t); } - hi->per_packet_overhead_bytes = /* preamble */ 8 + /* inter frame gap */ 12; - /* Standard default ipip MTU. */ - hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] = 9000; + vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000); t->tunnel_src = *src; t->tunnel_dst = *dst; @@ -545,7 +559,7 @@ ipip_init (vlib_main_t * vm) { ipip_main_t *gm = &ipip_main; - memset (gm, 0, sizeof (gm[0])); + clib_memset (gm, 0, sizeof (gm[0])); gm->vlib_main = vm; gm->vnet_main = vnet_get_main (); gm->tunnel_by_key =