Report: Process test msg - csit

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author	Tibor Frank <tifrank@cisco.com>	2020-02-25 11:57:07 +0100
committer	Tibor Frank <tifrank@cisco.com>	2020-02-25 11:57:07 +0100
commit	bb17ef2ed01e4dd1448c65f6df0d117b73e18dc0 (patch)
tree	e650ba8d5aeea0641dc6589833baf2ad8b1eed9a /resources/tools/presentation
parent	84ab8bd624aa016988fc9f56e5a07e9ec07128b5 (diff)

Report: Process test msg

Change-Id: I3b40fb7f6949c098612b5649b56448bca1966155 Signed-off-by: Tibor Frank <tifrank@cisco.com>

Diffstat (limited to 'resources/tools/presentation')

-rw-r--r--

resources/tools/presentation/input_data_parser.py

1 files changed, 23 insertions, 22 deletions

/* * Copyright (c) 2016 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <vnet/adj/adj_mcast.h> #include <vnet/adj/adj_internal.h> #include <vnet/fib/fib_walk.h> #include <vnet/ip/ip.h> /* * The 'DB' of all mcast adjs. * There is only one mcast per-interface per-protocol, so this is a per-interface * vector */ static adj_index_t *adj_mcasts[FIB_PROTOCOL_MAX]; static u32 adj_get_mcast_node (fib_protocol_t proto) { switch (proto) { case FIB_PROTOCOL_IP4: return (ip4_rewrite_mcast_node.index); case FIB_PROTOCOL_IP6: return (ip6_rewrite_mcast_node.index); case FIB_PROTOCOL_MPLS: break; } ASSERT(0); return (0); } /* * adj_mcast_add_or_lock * * The next_hop address here is used for source address selection in the DP. * The mcast adj is added to an interface's connected prefix, the next-hop * passed here is the local prefix on the same interface. */ adj_index_t adj_mcast_add_or_lock (fib_protocol_t proto, vnet_link_t link_type, u32 sw_if_index) { ip_adjacency_t * adj; vec_validate_init_empty(adj_mcasts[proto], sw_if_index, ADJ_INDEX_INVALID); if (ADJ_INDEX_INVALID == adj_mcasts[proto][sw_if_index]) { vnet_main_t *vnm; vnm = vnet_get_main(); adj = adj_alloc(proto); adj->lookup_next_index = IP_LOOKUP_NEXT_MCAST; adj->ia_nh_proto = proto; adj->ia_link = link_type; adj_mcasts[proto][sw_if_index] = adj_get_index(adj); adj_lock(adj_get_index(adj)); vnet_rewrite_init(vnm, sw_if_index, link_type, adj_get_mcast_node(proto), vnet_tx_node_index_for_sw_interface(vnm, sw_if_index), &adj->rewrite_header); /* * we need a rewrite where the destination IP address is converted * to the appropriate link-layer address. This is interface specific. * So ask the interface to do it. */ vnet_update_adjacency_for_sw_interface(vnm, sw_if_index, adj_get_index(adj)); } else { adj = adj_get(adj_mcasts[proto][sw_if_index]); adj_lock(adj_get_index(adj)); } return (adj_get_index(adj)); } /** * adj_mcast_update_rewrite * * Update the adjacency's rewrite string. A NULL string implies the * rewirte is reset (i.e. when ARP/ND etnry is gone). * NB: the adj being updated may be handling traffic in the DP. */ void adj_mcast_update_rewrite (adj_index_t adj_index, u8 *rewrite, u8 offset) { ip_adjacency_t *adj; ASSERT(ADJ_INDEX_INVALID != adj_index); adj = adj_get(adj_index); /* * update the adj's rewrite string and build the arc * from the rewrite node to the interface's TX node */ adj_nbr_update_rewrite_internal(adj, IP_LOOKUP_NEXT_MCAST, adj_get_mcast_node(adj->ia_nh_proto), vnet_tx_node_index_for_sw_interface( vnet_get_main(), adj->rewrite_header.sw_if_index), rewrite); /* * set the offset corresponding to the mcast IP address rewrite */ adj->rewrite_header.dst_mcast_offset = offset; } /** * adj_mcast_midchain_update_rewrite * * Update the adjacency's rewrite string. A NULL string implies the * rewirte is reset (i.e. when ARP/ND etnry is gone). * NB: the adj being updated may be handling traffic in the DP. */ void adj_mcast_midchain_update_rewrite (adj_index_t adj_index, adj_midchain_fixup_t fixup, const void *fixup_data, adj_flags_t flags, u8 *rewrite, u8 offset, u32 mask) { ip_adjacency_t *adj; ASSERT(ADJ_INDEX_INVALID != adj_index); adj = adj_get(adj_index); /* * one time only update. since we don't support chainging the tunnel * src,dst, this is all we need. */ ASSERT(adj->lookup_next_index == IP_LOOKUP_NEXT_MCAST); /* * tunnels can always provide a rewrite. */ ASSERT(NULL != rewrite); adj_midchain_setup(adj_index, fixup, fixup_data, flags); /* * update the adj's rewrite string and build the arc * from the rewrite node to the interface's TX node */ adj_nbr_update_rewrite_internal(adj, IP_LOOKUP_NEXT_MCAST_MIDCHAIN, adj_get_mcast_node(adj->ia_nh_proto), vnet_tx_node_index_for_sw_interface( vnet_get_main(), adj->rewrite_header.sw_if_index), rewrite); adj->rewrite_header.dst_mcast_offset = offset; } void adj_mcast_remove (fib_protocol_t proto, u32 sw_if_index) { ASSERT(sw_if_index < vec_len(adj_mcasts[proto])); adj_mcasts[proto][sw_if_index] = ADJ_INDEX_INVALID; } static clib_error_t * adj_mcast_interface_state_change (vnet_main_t * vnm, u32 sw_if_index, u32 flags) { /* * for each mcast on the interface trigger a walk back to the children */ fib_protocol_t proto; ip_adjacency_t *adj; for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) { if (sw_if_index >= vec_len(adj_mcasts[proto]) || ADJ_INDEX_INVALID == adj_mcasts[proto][sw_if_index]) continue; adj = adj_get(adj_mcasts[proto][sw_if_index]); fib_node_back_walk_ctx_t bw_ctx = { .fnbw_reason = (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP ? FIB_NODE_BW_REASON_FLAG_INTERFACE_UP : FIB_NODE_BW_REASON_FLAG_INTERFACE_DOWN), }; fib_walk_sync(FIB_NODE_TYPE_ADJ, adj_get_index(adj), &bw_ctx); } return (NULL); } VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION(adj_mcast_interface_state_change); /** * @brief Invoked on each SW interface of a HW interface when the * HW interface state changes */ static walk_rc_t adj_mcast_hw_sw_interface_state_change (vnet_main_t * vnm, u32 sw_if_index, void *arg) { adj_mcast_interface_state_change(vnm, sw_if_index, (uword) arg); return (WALK_CONTINUE); } /** * @brief Registered callback for HW interface state changes */ static clib_error_t * adj_mcast_hw_interface_state_change (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { /* * walk SW interfaces on the HW */ uword sw_flags; sw_flags = ((flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ? VNET_SW_INTERFACE_FLAG_ADMIN_UP : 0); vnet_hw_interface_walk_sw(vnm, hw_if_index, adj_mcast_hw_sw_interface_state_change, (void*) sw_flags); return (NULL); } VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION( adj_mcast_hw_interface_state_change); static clib_error_t * adj_mcast_interface_delete (vnet_main_t * vnm, u32 sw_if_index, u32 is_add) { /* * for each mcast on the interface trigger a walk back to the children */ fib_protocol_t proto; ip_adjacency_t *adj; if (is_add) { /* * not interested in interface additions. we will not back walk * to resolve paths through newly added interfaces. Why? The control * plane should have the brains to add interfaces first, then routes. * So the case where there are paths with a interface that matches * one just created is the case where the path resolved through an * interface that was deleted, and still has not been removed. The * new interface added, is NO GUARANTEE that the interface being * added now, even though it may have the same sw_if_index, is the * same interface that the path needs. So tough! * If the control plane wants these routes to resolve it needs to * remove and add them again. */ return (NULL); } for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) { if (sw_if_index >= vec_len(adj_mcasts[proto]) || ADJ_INDEX_INVALID == adj_mcasts[proto][sw_if_index]) continue; adj = adj_get(adj_mcasts[proto][sw_if_index]); fib_node_back_walk_ctx_t bw_ctx = { .fnbw_reason = FIB_NODE_BW_REASON_FLAG_INTERFACE_DELETE, }; fib_walk_sync(FIB_NODE_TYPE_ADJ, adj_get_index(adj), &bw_ctx); } return (NULL); } VNET_SW_INTERFACE_ADD_DEL_FUNCTION(adj_mcast_interface_delete); /** * @brief Walk the multicast Adjacencies on a given interface */ void adj_mcast_walk (u32 sw_if_index, fib_protocol_t proto, adj_walk_cb_t cb, void *ctx) { if (vec_len(adj_mcasts[proto]) > sw_if_index) { if (ADJ_INDEX_INVALID != adj_mcasts[proto][sw_if_index]) { cb(adj_mcasts[proto][sw_if_index], ctx); } } } u8* format_adj_mcast (u8* s, va_list *ap) { index_t index = va_arg(*ap, index_t); CLIB_UNUSED(u32 indent) = va_arg(*ap, u32); ip_adjacency_t * adj = adj_get(index); s = format(s, "%U-mcast: ", format_fib_protocol, adj->ia_nh_proto); if (adj->rewrite_header.flags & VNET_REWRITE_HAS_FEATURES) s = format(s, "[features] "); s = format (s, "%U", format_vnet_rewrite, &adj->rewrite_header, sizeof (adj->rewrite_data), 0); return (s); } u8* format_adj_mcast_midchain (u8* s, va_list *ap) { index_t index = va_arg(*ap, index_t); CLIB_UNUSED(u32 indent) = va_arg(*ap, u32); ip_adjacency_t * adj = adj_get(index); s = format(s, "%U-mcast-midchain: ", format_fib_protocol, adj->ia_nh_proto); s = format (s, "%U", format_vnet_rewrite, &adj->rewrite_header, sizeof (adj->rewrite_data), 0); s = format (s, "\n%Ustacked-on:\n%U%U", format_white_space, indent, format_white_space, indent+2, format_dpo_id, &adj->sub_type.midchain.next_dpo, indent+2); return (s); } static void adj_dpo_lock (dpo_id_t *dpo) { adj_lock(dpo->dpoi_index); } static void adj_dpo_unlock (dpo_id_t *dpo) { adj_unlock(dpo->dpoi_index); } const static dpo_vft_t adj_mcast_dpo_vft = { .dv_lock = adj_dpo_lock, .dv_unlock = adj_dpo_unlock, .dv_format = format_adj_mcast, .dv_get_urpf = adj_dpo_get_urpf, }; const static dpo_vft_t adj_mcast_midchain_dpo_vft = { .dv_lock = adj_dpo_lock, .dv_unlock = adj_dpo_unlock, .dv_format = format_adj_mcast_midchain, .dv_get_urpf = adj_dpo_get_urpf, }; /** * @brief The per-protocol VLIB graph nodes that are assigned to a mcast * object. * * this means that these graph nodes are ones from which a mcast is the * parent object in the DPO-graph. */ const static char* const adj_mcast_ip4_nodes[] = { "ip4-rewrite-mcast", NULL, }; const static char* const adj_mcast_ip6_nodes[] = { "ip6-rewrite-mcast", NULL, }; const static char* const * const adj_mcast_nodes[DPO_PROTO_NUM] = { [DPO_PROTO_IP4] = adj_mcast_ip4_nodes, [DPO_PROTO_IP6] = adj_mcast_ip6_nodes, [DPO_PROTO_MPLS] = NULL, }; /** * @brief The per-protocol VLIB graph nodes that are assigned to a mcast * object. * * this means that these graph nodes are ones from which a mcast is the * parent object in the DPO-graph. */ const static char* const adj_mcast_midchain_ip4_nodes[] = { "ip4-mcast-midchain", NULL, }; const static char* const adj_mcast_midchain_ip6_nodes[] = { "ip6-mcast-midchain", NULL, }; const static char* const * const adj_mcast_midchain_nodes[DPO_PROTO_NUM] = { [DPO_PROTO_IP4] = adj_mcast_midchain_ip4_nodes, [DPO_PROTO_IP6] = adj_mcast_midchain_ip6_nodes, [DPO_PROTO_MPLS] = NULL, }; /** * @brief Return the size of the adj DB. * This is only for testing purposes so an efficient implementation is not needed */ u32 adj_mcast_db_size (void) { u32 n_adjs, sw_if_index; fib_protocol_t proto; n_adjs = 0; for (proto = FIB_PROTOCOL_IP4; proto <= FIB_PROTOCOL_IP6; proto++) { for (sw_if_index = 0; sw_if_index < vec_len(adj_mcasts[proto]); sw_if_index++) { if (ADJ_INDEX_INVALID != adj_mcasts[proto][sw_if_index]) { n_adjs++; } } } return (n_adjs); } void adj_mcast_module_init (void) { dpo_register(DPO_ADJACENCY_MCAST, &adj_mcast_dpo_vft, adj_mcast_nodes); dpo_register(DPO_ADJACENCY_MCAST_MIDCHAIN, &adj_mcast_midchain_dpo_vft, adj_mcast_midchain_nodes); }


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