diff options
| -rw-r--r-- | src/vnet/vxlan/vxlan.c | 728 |
1 files changed, 374 insertions, 354 deletions
diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c index 7516a05ab6a..4f966fc323b 100644 --- a/src/vnet/vxlan/vxlan.c +++ b/src/vnet/vxlan/vxlan.c @@ -41,7 +41,8 @@ vxlan_main_t vxlan_main; -static u8 * format_decap_next (u8 * s, va_list * args) +static u8 * +format_decap_next (u8 * s, va_list * args) { u32 next_index = va_arg (*args, u32); @@ -52,16 +53,17 @@ static u8 * format_decap_next (u8 * s, va_list * args) return s; } -u8 * format_vxlan_tunnel (u8 * s, va_list * args) +u8 * +format_vxlan_tunnel (u8 * s, va_list * args) { - vxlan_tunnel_t * t = va_arg (*args, vxlan_tunnel_t *); + vxlan_tunnel_t *t = va_arg (*args, vxlan_tunnel_t *); s = format (s, "[%d] instance %d src %U dst %U vni %d fib-idx %d sw-if-idx %d ", t->dev_instance, t->user_instance, - format_ip46_address, &t->src, IP46_TYPE_ANY, - format_ip46_address, &t->dst, IP46_TYPE_ANY, - t->vni, t->encap_fib_index, t->sw_if_index); + format_ip46_address, &t->src, IP46_TYPE_ANY, + format_ip46_address, &t->dst, IP46_TYPE_ANY, + t->vni, t->encap_fib_index, t->sw_if_index); s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index); @@ -74,19 +76,20 @@ u8 * format_vxlan_tunnel (u8 * s, va_list * args) return s; } -static u8 * format_vxlan_name (u8 * s, va_list * args) +static u8 * +format_vxlan_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); - vxlan_main_t * vxm = &vxlan_main; + vxlan_main_t *vxm = &vxlan_main; vxlan_tunnel_t *t; if (dev_instance == ~0) - return format(s, "<cached-unused>"); + return format (s, "<cached-unused>"); - if (dev_instance >= vec_len(vxm->tunnels)) - return format(s, "<improperly-referenced>"); + if (dev_instance >= vec_len (vxm->tunnels)) + return format (s, "<improperly-referenced>"); - t = pool_elt_at_index(vxm->tunnels, dev_instance); + t = pool_elt_at_index (vxm->tunnels, dev_instance); return format (s, "vxlan_tunnel%d", t->user_instance); } @@ -101,33 +104,38 @@ vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) return /* no error */ 0; } -VNET_DEVICE_CLASS (vxlan_device_class,static) = { +/* *INDENT-OFF* */ +VNET_DEVICE_CLASS (vxlan_device_class, static) = { .name = "VXLAN", .format_device_name = format_vxlan_name, .format_tx_trace = format_vxlan_encap_trace, .admin_up_down_function = vxlan_interface_admin_up_down, }; +/* *INDENT-ON* */ -static u8 * format_vxlan_header_with_length (u8 * s, va_list * args) +static u8 * +format_vxlan_header_with_length (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); s = format (s, "unimplemented dev %u", dev_instance); return s; } +/* *INDENT-OFF* */ VNET_HW_INTERFACE_CLASS (vxlan_hw_class) = { .name = "VXLAN", .format_header = format_vxlan_header_with_length, .build_rewrite = default_build_rewrite, }; +/* *INDENT-ON* */ static void -vxlan_tunnel_restack_dpo(vxlan_tunnel_t * t) +vxlan_tunnel_restack_dpo (vxlan_tunnel_t * t) { - u8 is_ip4 = ip46_address_is_ip4(&t->dst); + u8 is_ip4 = ip46_address_is_ip4 (&t->dst); dpo_id_t dpo = DPO_INVALID; fib_forward_chain_type_t forw_type = is_ip4 ? - FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6; + FIB_FORW_CHAIN_TYPE_UNICAST_IP4 : FIB_FORW_CHAIN_TYPE_UNICAST_IP6; fib_entry_contribute_forwarding (t->fib_entry_index, forw_type, &dpo); @@ -138,23 +146,23 @@ vxlan_tunnel_restack_dpo(vxlan_tunnel_t * t) { load_balance_t *lb = load_balance_get (dpo.dpoi_index); if (lb->lb_n_buckets > 1) - break; + break; dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0)); } u32 encap_index = is_ip4 ? - vxlan4_encap_node.index : vxlan6_encap_node.index; + vxlan4_encap_node.index : vxlan6_encap_node.index; dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); - dpo_reset(&dpo); + dpo_reset (&dpo); } static vxlan_tunnel_t * -vxlan_tunnel_from_fib_node (fib_node_t *node) +vxlan_tunnel_from_fib_node (fib_node_t * node) { - ASSERT(FIB_NODE_TYPE_VXLAN_TUNNEL == node->fn_type); - return ((vxlan_tunnel_t*) (((char*)node) - - STRUCT_OFFSET_OF(vxlan_tunnel_t, node))); + ASSERT (FIB_NODE_TYPE_VXLAN_TUNNEL == node->fn_type); + return ((vxlan_tunnel_t *) (((char *) node) - + STRUCT_OFFSET_OF (vxlan_tunnel_t, node))); } /** @@ -162,38 +170,37 @@ vxlan_tunnel_from_fib_node (fib_node_t *node) * Here we will restack the new dpo of VXLAN DIP to encap node. */ static fib_node_back_walk_rc_t -vxlan_tunnel_back_walk (fib_node_t *node, - fib_node_back_walk_ctx_t *ctx) +vxlan_tunnel_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx) { - vxlan_tunnel_restack_dpo(vxlan_tunnel_from_fib_node(node)); - return (FIB_NODE_BACK_WALK_CONTINUE); + vxlan_tunnel_restack_dpo (vxlan_tunnel_from_fib_node (node)); + return (FIB_NODE_BACK_WALK_CONTINUE); } /** * Function definition to get a FIB node from its index */ -static fib_node_t* +static fib_node_t * vxlan_tunnel_fib_node_get (fib_node_index_t index) { - vxlan_tunnel_t * t; - vxlan_main_t * vxm = &vxlan_main; + vxlan_tunnel_t *t; + vxlan_main_t *vxm = &vxlan_main; - t = pool_elt_at_index(vxm->tunnels, index); + t = pool_elt_at_index (vxm->tunnels, index); - return (&t->node); + return (&t->node); } /** * Function definition to inform the FIB node that its last lock has gone. */ static void -vxlan_tunnel_last_lock_gone (fib_node_t *node) +vxlan_tunnel_last_lock_gone (fib_node_t * node) { - /* - * The VXLAN tunnel is a root of the graph. As such - * it never has children and thus is never locked. - */ - ASSERT(0); + /* + * The VXLAN tunnel is a root of the graph. As such + * it never has children and thus is never locked. + */ + ASSERT (0); } /* @@ -201,9 +208,9 @@ vxlan_tunnel_last_lock_gone (fib_node_t *node) * for participation in the FIB object graph. */ const static fib_node_vft_t vxlan_vft = { - .fnv_get = vxlan_tunnel_fib_node_get, - .fnv_last_lock = vxlan_tunnel_last_lock_gone, - .fnv_back_walk = vxlan_tunnel_back_walk, + .fnv_get = vxlan_tunnel_fib_node_get, + .fnv_last_lock = vxlan_tunnel_last_lock_gone, + .fnv_back_walk = vxlan_tunnel_back_walk, }; @@ -218,25 +225,26 @@ _(dst) static void vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) { - union { + union + { ip4_vxlan_header_t h4; ip6_vxlan_header_t h6; } h; int len = is_ip6 ? sizeof h.h6 : sizeof h.h4; - udp_header_t * udp; - vxlan_header_t * vxlan; + udp_header_t *udp; + vxlan_header_t *vxlan; /* Fixed portion of the (outer) ip header */ - memset (&h, 0, sizeof(h)); - if (!is_ip6) + memset (&h, 0, sizeof (h)); + if (!is_ip6) { - ip4_header_t * ip = &h.h4.ip4; + ip4_header_t *ip = &h.h4.ip4; udp = &h.h4.udp, vxlan = &h.h4.vxlan; ip->ip_version_and_header_length = 0x45; ip->ttl = 254; ip->protocol = IP_PROTOCOL_UDP; - + ip->src_address = t->src.ip4; ip->dst_address = t->dst.ip4; @@ -245,12 +253,13 @@ vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) } else { - ip6_header_t * ip = &h.h6.ip6; + ip6_header_t *ip = &h.h6.ip6; udp = &h.h6.udp, vxlan = &h.h6.vxlan; - ip->ip_version_traffic_class_and_flow_label = clib_host_to_net_u32(6 << 28); + ip->ip_version_traffic_class_and_flow_label = + clib_host_to_net_u32 (6 << 28); ip->hop_limit = 255; ip->protocol = IP_PROTOCOL_UDP; - + ip->src_address = t->src.ip6; ip->dst_address = t->dst.ip6; } @@ -260,98 +269,102 @@ vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); /* VXLAN header */ - vnet_set_vni_and_flags(vxlan, t->vni); + vnet_set_vni_and_flags (vxlan, t->vni); vnet_rewrite_set_data (*t, &h, len); } static bool -vxlan_decap_next_is_valid (vxlan_main_t * vxm, u32 is_ip6, u32 decap_next_index) +vxlan_decap_next_is_valid (vxlan_main_t * vxm, u32 is_ip6, + u32 decap_next_index) { - vlib_main_t * vm = vxm->vlib_main; - u32 input_idx = (!is_ip6) ? vxlan4_input_node.index : vxlan6_input_node.index; + vlib_main_t *vm = vxm->vlib_main; + u32 input_idx = (!is_ip6) ? + vxlan4_input_node.index : vxlan6_input_node.index; vlib_node_runtime_t *r = vlib_node_get_runtime (vm, input_idx); return decap_next_index < r->n_next_nodes; } static uword -vtep_addr_ref(ip46_address_t *ip) +vtep_addr_ref (ip46_address_t * ip) { - uword *vtep = ip46_address_is_ip4(ip) ? - hash_get (vxlan_main.vtep4, ip->ip4.as_u32) : - hash_get_mem (vxlan_main.vtep6, &ip->ip6); - if (vtep) - return ++(*vtep); - ip46_address_is_ip4(ip) ? - hash_set (vxlan_main.vtep4, ip->ip4.as_u32, 1) : - hash_set_mem_alloc (&vxlan_main.vtep6, &ip->ip6, 1); - return 1; + uword *vtep = ip46_address_is_ip4 (ip) ? + hash_get (vxlan_main.vtep4, ip->ip4.as_u32) : + hash_get_mem (vxlan_main.vtep6, &ip->ip6); + if (vtep) + return ++(*vtep); + ip46_address_is_ip4 (ip) ? + hash_set (vxlan_main.vtep4, ip->ip4.as_u32, 1) : + hash_set_mem_alloc (&vxlan_main.vtep6, &ip->ip6, 1); + return 1; } static uword -vtep_addr_unref(ip46_address_t *ip) +vtep_addr_unref (ip46_address_t * ip) { - uword *vtep = ip46_address_is_ip4(ip) ? - hash_get (vxlan_main.vtep4, ip->ip4.as_u32) : - hash_get_mem (vxlan_main.vtep6, &ip->ip6); - ASSERT(vtep); - if (--(*vtep) != 0) - return *vtep; - ip46_address_is_ip4(ip) ? - hash_unset (vxlan_main.vtep4, ip->ip4.as_u32) : - hash_unset_mem_free (&vxlan_main.vtep6, &ip->ip6); - return 0; + uword *vtep = ip46_address_is_ip4 (ip) ? + hash_get (vxlan_main.vtep4, ip->ip4.as_u32) : + hash_get_mem (vxlan_main.vtep6, &ip->ip6); + ASSERT (vtep); + if (--(*vtep) != 0) + return *vtep; + ip46_address_is_ip4 (ip) ? + hash_unset (vxlan_main.vtep4, ip->ip4.as_u32) : + hash_unset_mem_free (&vxlan_main.vtep6, &ip->ip6); + return 0; } -typedef CLIB_PACKED(union { - struct { +/* *INDENT-OFF* */ +typedef CLIB_PACKED(union +{ + struct + { fib_node_index_t mfib_entry_index; adj_index_t mcast_adj_index; }; u64 as_u64; }) mcast_shared_t; +/* *INDENT-ON* */ static inline mcast_shared_t -mcast_shared_get(ip46_address_t * ip) +mcast_shared_get (ip46_address_t * ip) { - ASSERT(ip46_address_is_multicast(ip)); - uword * p = hash_get_mem (vxlan_main.mcast_shared, ip); - ASSERT(p); - return (mcast_shared_t) { .as_u64 = *p }; + ASSERT (ip46_address_is_multicast (ip)); + uword *p = hash_get_mem (vxlan_main.mcast_shared, ip); + ASSERT (p); + mcast_shared_t ret = {.as_u64 = *p }; + return ret; } static inline void -mcast_shared_add(ip46_address_t *dst, - fib_node_index_t mfei, - adj_index_t ai) +mcast_shared_add (ip46_address_t * dst, fib_node_index_t mfei, adj_index_t ai) { - mcast_shared_t new_ep = { - .mcast_adj_index = ai, - .mfib_entry_index = mfei, - }; + mcast_shared_t new_ep = { + .mcast_adj_index = ai, + .mfib_entry_index = mfei, + }; - hash_set_mem_alloc (&vxlan_main.mcast_shared, dst, new_ep.as_u64); + hash_set_mem_alloc (&vxlan_main.mcast_shared, dst, new_ep.as_u64); } static inline void -mcast_shared_remove(ip46_address_t *dst) +mcast_shared_remove (ip46_address_t * dst) { - mcast_shared_t ep = mcast_shared_get(dst); + mcast_shared_t ep = mcast_shared_get (dst); - adj_unlock(ep.mcast_adj_index); - mfib_table_entry_delete_index(ep.mfib_entry_index, - MFIB_SOURCE_VXLAN); + adj_unlock (ep.mcast_adj_index); + mfib_table_entry_delete_index (ep.mfib_entry_index, MFIB_SOURCE_VXLAN); - hash_unset_mem_free (&vxlan_main.mcast_shared, dst); + hash_unset_mem_free (&vxlan_main.mcast_shared, dst); } -int vnet_vxlan_add_del_tunnel -(vnet_vxlan_add_del_tunnel_args_t *a, u32 * sw_if_indexp) +int vnet_vxlan_add_del_tunnel + (vnet_vxlan_add_del_tunnel_args_t * a, u32 * sw_if_indexp) { - vxlan_main_t * vxm = &vxlan_main; + vxlan_main_t *vxm = &vxlan_main; vxlan_tunnel_t *t = 0; - vnet_main_t * vnm = vxm->vnet_main; - uword * p; + vnet_main_t *vnm = vxm->vnet_main; + uword *p; u32 sw_if_index = ~0; vxlan4_tunnel_key_t key4; vxlan6_tunnel_key_t key6; @@ -359,11 +372,11 @@ int vnet_vxlan_add_del_tunnel if (!is_ip6) { - key4.src = a->dst.ip4.as_u32; /* decap src in key is encap dst in config */ + key4.src = a->dst.ip4.as_u32; /* decap src in key is encap dst in config */ key4.vni = clib_host_to_net_u32 (a->vni << 8); p = hash_get (vxm->vxlan4_tunnel_by_key, key4.as_u64); - } - else + } + else { key6.src = a->dst.ip6; key6.vni = clib_host_to_net_u32 (a->vni << 8); @@ -372,22 +385,22 @@ int vnet_vxlan_add_del_tunnel if (a->is_add) { - l2input_main_t * l2im = &l2input_main; + l2input_main_t *l2im = &l2input_main; u32 dev_instance; /* real dev instance tunnel index */ u32 user_instance; /* request and actual instance number */ /* adding a tunnel: tunnel must not already exist */ if (p) - return VNET_API_ERROR_TUNNEL_EXIST; + return VNET_API_ERROR_TUNNEL_EXIST; /*if not set explicitly, default to l2 */ - if(a->decap_next_index == ~0) + if (a->decap_next_index == ~0) a->decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT; - if (!vxlan_decap_next_is_valid(vxm, is_ip6, a->decap_next_index)) - return VNET_API_ERROR_INVALID_DECAP_NEXT; + if (!vxlan_decap_next_is_valid (vxm, is_ip6, a->decap_next_index)) + return VNET_API_ERROR_INVALID_DECAP_NEXT; pool_get_aligned (vxm->tunnels, t, CLIB_CACHE_LINE_BYTES); - memset (t, 0, sizeof(*t)); + memset (t, 0, sizeof (*t)); dev_instance = t - vxm->tunnels; /* copy from arg structure */ @@ -400,7 +413,7 @@ int vnet_vxlan_add_del_tunnel * Reconcile the real dev_instance and a possible requested instance. */ user_instance = a->instance; - if (user_instance == ~0) + if (user_instance == ~0) user_instance = dev_instance; if (hash_get (vxm->instance_used, user_instance)) { @@ -409,28 +422,29 @@ int vnet_vxlan_add_del_tunnel } hash_set (vxm->instance_used, user_instance, 1); - t->dev_instance = dev_instance; /* actual */ - t->user_instance = user_instance; /* name */ + t->dev_instance = dev_instance; /* actual */ + t->user_instance = user_instance; /* name */ /* copy the key */ if (is_ip6) - hash_set_mem_alloc (&vxm->vxlan6_tunnel_by_key, &key6, dev_instance); + hash_set_mem_alloc (&vxm->vxlan6_tunnel_by_key, &key6, dev_instance); else - hash_set (vxm->vxlan4_tunnel_by_key, key4.as_u64, dev_instance); + hash_set (vxm->vxlan4_tunnel_by_key, key4.as_u64, dev_instance); t->hw_if_index = vnet_register_interface - (vnm, vxlan_device_class.index, dev_instance, - vxlan_hw_class.index, dev_instance); - vnet_hw_interface_t * hi = vnet_get_hw_interface (vnm, t->hw_if_index); + (vnm, vxlan_device_class.index, dev_instance, + vxlan_hw_class.index, dev_instance); + vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, t->hw_if_index); /* Set vxlan tunnel output node */ u32 encap_index = !is_ip6 ? - vxlan4_encap_node.index : vxlan6_encap_node.index; + vxlan4_encap_node.index : vxlan6_encap_node.index; vnet_set_interface_output_node (vnm, t->hw_if_index, encap_index); t->sw_if_index = sw_if_index = hi->sw_if_index; - vec_validate_init_empty (vxm->tunnel_index_by_sw_if_index, sw_if_index, ~0); + vec_validate_init_empty (vxm->tunnel_index_by_sw_if_index, sw_if_index, + ~0); vxm->tunnel_index_by_sw_if_index[sw_if_index] = dev_instance; /* setup l2 input config with l2 feature and bd 0 to drop packet */ @@ -438,172 +452,173 @@ int vnet_vxlan_add_del_tunnel l2im->configs[sw_if_index].feature_bitmap = L2INPUT_FEAT_DROP; l2im->configs[sw_if_index].bd_index = 0; - vnet_sw_interface_t * si = vnet_get_sw_interface (vnm, sw_if_index); + vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index); si->flags &= ~VNET_SW_INTERFACE_FLAG_HIDDEN; vnet_sw_interface_set_flags (vnm, sw_if_index, - VNET_SW_INTERFACE_FLAG_ADMIN_UP); + VNET_SW_INTERFACE_FLAG_ADMIN_UP); - fib_node_init(&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL); + fib_node_init (&t->node, FIB_NODE_TYPE_VXLAN_TUNNEL); fib_prefix_t tun_dst_pfx; vnet_flood_class_t flood_class = VNET_FLOOD_CLASS_TUNNEL_NORMAL; - fib_prefix_from_ip46_addr(&t->dst, &tun_dst_pfx); - if (!ip46_address_is_multicast(&t->dst)) - { - /* Unicast tunnel - - * source the FIB entry for the tunnel's destination - * and become a child thereof. The tunnel will then get poked - * when the forwarding for the entry updates, and the tunnel can - * re-stack accordingly - */ - vtep_addr_ref(&t->src); - t->fib_entry_index = fib_table_entry_special_add - (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR, + fib_prefix_from_ip46_addr (&t->dst, &tun_dst_pfx); + if (!ip46_address_is_multicast (&t->dst)) + { + /* Unicast tunnel - + * source the FIB entry for the tunnel's destination + * and become a child thereof. The tunnel will then get poked + * when the forwarding for the entry updates, and the tunnel can + * re-stack accordingly + */ + vtep_addr_ref (&t->src); + t->fib_entry_index = fib_table_entry_special_add + (t->encap_fib_index, &tun_dst_pfx, FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE); - t->sibling_index = fib_entry_child_add - (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, dev_instance); - vxlan_tunnel_restack_dpo(t); - } + t->sibling_index = fib_entry_child_add + (t->fib_entry_index, FIB_NODE_TYPE_VXLAN_TUNNEL, dev_instance); + vxlan_tunnel_restack_dpo (t); + } else - { - /* Multicast tunnel - + { + /* Multicast tunnel - * as the same mcast group can be used for mutiple mcast tunnels * with different VNIs, create the output fib adjecency only if * it does not already exist */ - fib_protocol_t fp = fib_ip_proto(is_ip6); - - if (vtep_addr_ref(&t->dst) == 1) - { - fib_node_index_t mfei; - adj_index_t ai; - fib_route_path_t path = { - .frp_proto = fib_proto_to_dpo(fp), - .frp_addr = zero_addr, - .frp_sw_if_index = 0xffffffff, - .frp_fib_index = ~0, - .frp_weight = 0, - .frp_flags = FIB_ROUTE_PATH_LOCAL, - }; - const mfib_prefix_t mpfx = { - .fp_proto = fp, - .fp_len = (is_ip6 ? 128 : 32), - .fp_grp_addr = tun_dst_pfx.fp_addr, - }; - - /* - * Setup the (*,G) to receive traffic on the mcast group - * - the forwarding interface is for-us - * - the accepting interface is that from the API - */ - mfib_table_entry_path_update(t->encap_fib_index, - &mpfx, - MFIB_SOURCE_VXLAN, - &path, - MFIB_ITF_FLAG_FORWARD); - - path.frp_sw_if_index = a->mcast_sw_if_index; - path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; - mfei = mfib_table_entry_path_update(t->encap_fib_index, - &mpfx, - MFIB_SOURCE_VXLAN, - &path, - MFIB_ITF_FLAG_ACCEPT); - - /* - * Create the mcast adjacency to send traffic to the group - */ - ai = adj_mcast_add_or_lock(fp, - fib_proto_to_link(fp), - a->mcast_sw_if_index); - - /* - * create a new end-point - */ - mcast_shared_add(&t->dst, mfei, ai); - } - - dpo_id_t dpo = DPO_INVALID; - mcast_shared_t ep = mcast_shared_get(&t->dst); - - /* Stack shared mcast dst mac addr rewrite on encap */ - dpo_set (&dpo, DPO_ADJACENCY_MCAST, - fib_proto_to_dpo(fp), - ep.mcast_adj_index); - - dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); - dpo_reset (&dpo); + fib_protocol_t fp = fib_ip_proto (is_ip6); + + if (vtep_addr_ref (&t->dst) == 1) + { + fib_node_index_t mfei; + adj_index_t ai; + fib_route_path_t path = { + .frp_proto = fib_proto_to_dpo (fp), + .frp_addr = zero_addr, + .frp_sw_if_index = 0xffffffff, + .frp_fib_index = ~0, + .frp_weight = 0, + .frp_flags = FIB_ROUTE_PATH_LOCAL, + }; + const mfib_prefix_t mpfx = { + .fp_proto = fp, + .fp_len = (is_ip6 ? 128 : 32), + .fp_grp_addr = tun_dst_pfx.fp_addr, + }; + + /* + * Setup the (*,G) to receive traffic on the mcast group + * - the forwarding interface is for-us + * - the accepting interface is that from the API + */ + mfib_table_entry_path_update (t->encap_fib_index, + &mpfx, + MFIB_SOURCE_VXLAN, + &path, MFIB_ITF_FLAG_FORWARD); + + path.frp_sw_if_index = a->mcast_sw_if_index; + path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; + mfei = mfib_table_entry_path_update (t->encap_fib_index, + &mpfx, + MFIB_SOURCE_VXLAN, + &path, + MFIB_ITF_FLAG_ACCEPT); + + /* + * Create the mcast adjacency to send traffic to the group + */ + ai = adj_mcast_add_or_lock (fp, + fib_proto_to_link (fp), + a->mcast_sw_if_index); + + /* + * create a new end-point + */ + mcast_shared_add (&t->dst, mfei, ai); + } + + dpo_id_t dpo = DPO_INVALID; + mcast_shared_t ep = mcast_shared_get (&t->dst); + + /* Stack shared mcast dst mac addr rewrite on encap */ + dpo_set (&dpo, DPO_ADJACENCY_MCAST, + fib_proto_to_dpo (fp), ep.mcast_adj_index); + + dpo_stack_from_node (encap_index, &t->next_dpo, &dpo); + dpo_reset (&dpo); flood_class = VNET_FLOOD_CLASS_TUNNEL_MASTER; } - vnet_get_sw_interface (vnet_get_main(), sw_if_index)->flood_class = flood_class; + vnet_get_sw_interface (vnet_get_main (), sw_if_index)->flood_class = + flood_class; } else { /* deleting a tunnel: tunnel must exist */ if (!p) - return VNET_API_ERROR_NO_SUCH_ENTRY; + return VNET_API_ERROR_NO_SUCH_ENTRY; u32 instance = p[0]; t = pool_elt_at_index (vxm->tunnels, instance); sw_if_index = t->sw_if_index; - vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */); + vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ ); vxm->tunnel_index_by_sw_if_index[sw_if_index] = ~0; if (!is_ip6) - hash_unset (vxm->vxlan4_tunnel_by_key, key4.as_u64); + hash_unset (vxm->vxlan4_tunnel_by_key, key4.as_u64); else hash_unset_mem_free (&vxm->vxlan6_tunnel_by_key, &key6); - if (!ip46_address_is_multicast(&t->dst)) - { - vtep_addr_unref(&t->src); - fib_entry_child_remove(t->fib_entry_index, t->sibling_index); - fib_table_entry_delete_index(t->fib_entry_index, FIB_SOURCE_RR); - } - else if (vtep_addr_unref(&t->dst) == 0) - { - mcast_shared_remove(&t->dst); - } + if (!ip46_address_is_multicast (&t->dst)) + { + vtep_addr_unref (&t->src); + fib_entry_child_remove (t->fib_entry_index, t->sibling_index); + fib_table_entry_delete_index (t->fib_entry_index, FIB_SOURCE_RR); + } + else if (vtep_addr_unref (&t->dst) == 0) + { + mcast_shared_remove (&t->dst); + } vnet_delete_hw_interface (vnm, t->hw_if_index); hash_unset (vxm->instance_used, t->user_instance); - fib_node_deinit(&t->node); + fib_node_deinit (&t->node); pool_put (vxm->tunnels, t); } if (sw_if_indexp) - *sw_if_indexp = sw_if_index; + *sw_if_indexp = sw_if_index; return 0; } -static uword get_decap_next_for_node(u32 node_index, u32 ipv4_set) +static uword +get_decap_next_for_node (u32 node_index, u32 ipv4_set) { - vxlan_main_t * vxm = &vxlan_main; - vlib_main_t * vm = vxm->vlib_main; + vxlan_main_t *vxm = &vxlan_main; + vlib_main_t *vm = vxm->vlib_main; uword input_node = (ipv4_set) ? vxlan4_input_node.index : vxlan6_input_node.index; return vlib_node_add_next (vm, input_node, node_index); } -static uword unformat_decap_next (unformat_input_t * input, va_list * args) +static uword +unformat_decap_next (unformat_input_t * input, va_list * args) { - u32 * result = va_arg (*args, u32 *); + u32 *result = va_arg (*args, u32 *); u32 ipv4_set = va_arg (*args, int); - vxlan_main_t * vxm = &vxlan_main; - vlib_main_t * vm = vxm->vlib_main; + vxlan_main_t *vxm = &vxlan_main; + vlib_main_t *vm = vxm->vlib_main; u32 node_index; u32 tmp; if (unformat (input, "l2")) *result = VXLAN_INPUT_NEXT_L2_INPUT; else if (unformat (input, "node %U", unformat_vlib_node, vm, &node_index)) - *result = get_decap_next_for_node(node_index, ipv4_set); + *result = get_decap_next_for_node (node_index, ipv4_set); else if (unformat (input, "%d", &tmp)) *result = tmp; else @@ -613,11 +628,12 @@ static uword unformat_decap_next (unformat_input_t * input, va_list * args) static clib_error_t * vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { - unformat_input_t _line_input, * line_input = &_line_input; - ip46_address_t src = ip46_address_initializer, dst = ip46_address_initializer; + unformat_input_t _line_input, *line_input = &_line_input; + ip46_address_t src = ip46_address_initializer, dst = + ip46_address_initializer; u8 is_add = 1; u8 src_set = 0; u8 dst_set = 0; @@ -633,57 +649,61 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, clib_error_t *error = NULL; /* Get a line of input. */ - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; - while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat (line_input, "del")) - { - is_add = 0; - } - else if (unformat (line_input, "instance %d", &instance)) - ; - else if (unformat (line_input, "src %U", - unformat_ip46_address, &src, IP46_TYPE_ANY)) - { - src_set = 1; - ip46_address_is_ip4(&src) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "dst %U", - unformat_ip46_address, &dst, IP46_TYPE_ANY)) - { - dst_set = 1; - ip46_address_is_ip4(&dst) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "group %U %U", - unformat_ip46_address, &dst, IP46_TYPE_ANY, - unformat_vnet_sw_interface, - vnet_get_main(), &mcast_sw_if_index)) - { - grp_set = dst_set = 1; - ip46_address_is_ip4(&dst) ? (ipv4_set = 1) : (ipv6_set = 1); - } - else if (unformat (line_input, "encap-vrf-id %d", &table_id)) - { - encap_fib_index = fib_table_find (fib_ip_proto (ipv6_set), table_id); - if (encap_fib_index == ~0) - { - error = clib_error_return (0, "nonexistent encap-vrf-id %d", table_id); - break; - } - } - else if (unformat (line_input, "decap-next %U", unformat_decap_next, - &decap_next_index, ipv4_set)) - ; - else if (unformat (line_input, "vni %d", &vni)) - ; - else - { - error = clib_error_return (0, "parse error: '%U'", - format_unformat_error, line_input); - break; - } - } + while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (line_input, "del")) + { + is_add = 0; + } + else if (unformat (line_input, "instance %d", &instance)) + ; + else if (unformat (line_input, "src %U", + unformat_ip46_address, &src, IP46_TYPE_ANY)) + { + src_set = 1; + ip46_address_is_ip4 (&src) ? (ipv4_set = 1) : (ipv6_set = 1); + } + else if (unformat (line_input, "dst %U", + unformat_ip46_address, &dst, IP46_TYPE_ANY)) + { + dst_set = 1; + ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1); + } + else if (unformat (line_input, "group %U %U", + unformat_ip46_address, &dst, IP46_TYPE_ANY, + unformat_vnet_sw_interface, + vnet_get_main (), &mcast_sw_if_index)) + { + grp_set = dst_set = 1; + ip46_address_is_ip4 (&dst) ? (ipv4_set = 1) : (ipv6_set = 1); + } + else if (unformat (line_input, "encap-vrf-id %d", &table_id)) + { + encap_fib_index = + fib_table_find (fib_ip_proto (ipv6_set), table_id); + if (encap_fib_index == ~0) + { + error = + clib_error_return (0, "nonexistent encap-vrf-id %d", + table_id); + break; + } + } + else if (unformat (line_input, "decap-next %U", unformat_decap_next, + &decap_next_index, ipv4_set)) + ; + else if (unformat (line_input, "vni %d", &vni)) + ; + else + { + error = clib_error_return (0, "parse error: '%U'", + format_unformat_error, line_input); + break; + } + } unformat_free (line_input); @@ -696,10 +716,10 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, if (dst_set == 0) return clib_error_return (0, "tunnel dst address not specified"); - if (grp_set && !ip46_address_is_multicast(&dst)) + if (grp_set && !ip46_address_is_multicast (&dst)) return clib_error_return (0, "tunnel group address not multicast"); - if (grp_set == 0 && ip46_address_is_multicast(&dst)) + if (grp_set == 0 && ip46_address_is_multicast (&dst)) return clib_error_return (0, "dst address must be unicast"); if (grp_set && mcast_sw_if_index == ~0) @@ -708,7 +728,7 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, if (ipv4_set && ipv6_set) return clib_error_return (0, "both IPv4 and IPv6 addresses specified"); - if (ip46_address_cmp(&src, &dst) == 0) + if (ip46_address_cmp (&src, &dst) == 0) return clib_error_return (0, "src and dst addresses are identical"); if (decap_next_index == ~0) @@ -717,27 +737,27 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, if (vni == 0) return clib_error_return (0, "vni not specified"); - if (vni >> 24) + if (vni >> 24) return clib_error_return (0, "vni %d out of range", vni); vnet_vxlan_add_del_tunnel_args_t a = { - .is_add = is_add, - .is_ip6 = ipv6_set, - .instance = instance, + .is_add = is_add, + .is_ip6 = ipv6_set, + .instance = instance, #define _(x) .x = x, - foreach_copy_field + foreach_copy_field #undef _ }; u32 tunnel_sw_if_index; int rv = vnet_vxlan_add_del_tunnel (&a, &tunnel_sw_if_index); - switch(rv) + switch (rv) { case 0: if (is_add) - vlib_cli_output(vm, "%U\n", format_vnet_sw_if_index_name, - vnet_get_main(), tunnel_sw_if_index); + vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name, + vnet_get_main (), tunnel_sw_if_index); break; case VNET_API_ERROR_TUNNEL_EXIST: @@ -751,7 +771,7 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, default: return clib_error_return - (0, "vnet_vxlan_add_del_tunnel returned %d", rv); + (0, "vnet_vxlan_add_del_tunnel returned %d", rv); } return error; @@ -782,7 +802,7 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, /* *INDENT-OFF* */ VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = { .path = "create vxlan tunnel", - .short_help = + .short_help = "create vxlan tunnel src <local-vtep-addr>" " {dst <remote-vtep-addr>|group <mcast-vtep-addr> <intf-name>} vni <nn>" " [instance <id>]" @@ -793,20 +813,22 @@ VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = { static clib_error_t * show_vxlan_tunnel_command_fn (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, + vlib_cli_command_t * cmd) { - vxlan_main_t * vxm = &vxlan_main; - vxlan_tunnel_t * t; - + vxlan_main_t *vxm = &vxlan_main; + vxlan_tunnel_t *t; + if (pool_elts (vxm->tunnels) == 0) vlib_cli_output (vm, "No vxlan tunnels configured..."); +/* *INDENT-OFF* */ pool_foreach (t, vxm->tunnels, ({ vlib_cli_output (vm, "%U", format_vxlan_tunnel, t); })); - +/* *INDENT-ON* */ + return 0; } @@ -828,9 +850,8 @@ VLIB_CLI_COMMAND (show_vxlan_tunnel_command, static) = { /* *INDENT-ON* */ -void vnet_int_vxlan_bypass_mode (u32 sw_if_index, - u8 is_ip6, - u8 is_enable) +void +vnet_int_vxlan_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable) { if (is_ip6) vnet_feature_enable_disable ("ip6-unicast", "ip6-vxlan-bypass", @@ -843,28 +864,28 @@ void vnet_int_vxlan_bypass_mode (u32 sw_if_index, static clib_error_t * set_ip_vxlan_bypass (u32 is_ip6, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { - unformat_input_t _line_input, * line_input = &_line_input; - vnet_main_t * vnm = vnet_get_main(); - clib_error_t * error = 0; + unformat_input_t _line_input, *line_input = &_line_input; + vnet_main_t *vnm = vnet_get_main (); + clib_error_t *error = 0; u32 sw_if_index, is_enable; sw_if_index = ~0; is_enable = 1; - if (! unformat_user (input, unformat_line_input, line_input)) + if (!unformat_user (input, unformat_line_input, line_input)) return 0; while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT) { - if (unformat_user (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) - ; + if (unformat_user + (line_input, unformat_vnet_sw_interface, vnm, &sw_if_index)) + ; else if (unformat (line_input, "del")) - is_enable = 0; + is_enable = 0; else - { + { error = unformat_parse_error (line_input); goto done; } @@ -879,7 +900,7 @@ set_ip_vxlan_bypass (u32 is_ip6, vnet_int_vxlan_bypass_mode (sw_if_index, is_ip6, is_enable); - done: +done: unformat_free (line_input); return error; @@ -887,17 +908,16 @@ set_ip_vxlan_bypass (u32 is_ip6, static clib_error_t * set_ip4_vxlan_bypass (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { return set_ip_vxlan_bypass (0, input, cmd); } /*? - * This command adds the 'ip4-vxlan-bypass' graph node for a given interface. + * This command adds the 'ip4-vxlan-bypass' graph node for a given interface. * By adding the IPv4 vxlan-bypass graph node to an interface, the node checks - * for and validate input vxlan packet and bypass ip4-lookup, ip4-local, - * ip4-udp-lookup nodes to speedup vxlan packet forwarding. This node will + * for and validate input vxlan packet and bypass ip4-lookup, ip4-local, + * ip4-udp-lookup nodes to speedup vxlan packet forwarding. This node will * cause extra overhead to for non-vxlan packets which is kept at a minimum. * * @cliexpar @@ -907,7 +927,7 @@ set_ip4_vxlan_bypass (vlib_main_t * vm, * Name Next Previous * ip4-vxlan-bypass error-drop [0] * vxlan4-input [1] - * ip4-lookup [2] + * ip4-lookup [2] * @cliexend * * Example of how to enable ip4-vxlan-bypass on an interface: @@ -915,10 +935,10 @@ set_ip4_vxlan_bypass (vlib_main_t * vm, * * Example of graph node after ip4-vxlan-bypass is enabled: * @cliexstart{show vlib graph ip4-vxlan-bypass} - * Name Next Previous - * ip4-vxlan-bypass error-drop [0] ip4-input - * vxlan4-input [1] ip4-input-no-checksum - * ip4-lookup [2] + * Name Next Previous + * ip4-vxlan-bypass error-drop [0] ip4-input + * vxlan4-input [1] ip4-input-no-checksum + * ip4-lookup [2] * @cliexend * * Example of how to display the feature enabed on an interface: @@ -945,17 +965,16 @@ VLIB_CLI_COMMAND (set_interface_ip_vxlan_bypass_command, static) = { static clib_error_t * set_ip6_vxlan_bypass (vlib_main_t * vm, - unformat_input_t * input, - vlib_cli_command_t * cmd) + unformat_input_t * input, vlib_cli_command_t * cmd) { return set_ip_vxlan_bypass (1, input, cmd); } /*? - * This command adds the 'ip6-vxlan-bypass' graph node for a given interface. + * This command adds the 'ip6-vxlan-bypass' graph node for a given interface. * By adding the IPv6 vxlan-bypass graph node to an interface, the node checks - * for and validate input vxlan packet and bypass ip6-lookup, ip6-local, - * ip6-udp-lookup nodes to speedup vxlan packet forwarding. This node will + * for and validate input vxlan packet and bypass ip6-lookup, ip6-local, + * ip6-udp-lookup nodes to speedup vxlan packet forwarding. This node will * cause extra overhead to for non-vxlan packets which is kept at a minimum. * * @cliexpar @@ -965,7 +984,7 @@ set_ip6_vxlan_bypass (vlib_main_t * vm, * Name Next Previous * ip6-vxlan-bypass error-drop [0] * vxlan6-input [1] - * ip6-lookup [2] + * ip6-lookup [2] * @cliexend * * Example of how to enable ip6-vxlan-bypass on an interface: @@ -973,10 +992,10 @@ set_ip6_vxlan_bypass (vlib_main_t * vm, * * Example of graph node after ip6-vxlan-bypass is enabled: * @cliexstart{show vlib graph ip6-vxlan-bypass} - * Name Next Previous - * ip6-vxlan-bypass error-drop [0] ip6-input - * vxlan6-input [1] ip4-input-no-checksum - * ip6-lookup [2] + * Name Next Previous + * ip6-vxlan-bypass error-drop [0] ip6-input + * vxlan6-input [1] ip4-input-no-checksum + * ip6-lookup [2] * @cliexend * * Example of how to display the feature enabed on an interface: @@ -1001,37 +1020,38 @@ VLIB_CLI_COMMAND (set_interface_ip6_vxlan_bypass_command, static) = { }; /* *INDENT-ON* */ -clib_error_t *vxlan_init (vlib_main_t *vm) +clib_error_t * +vxlan_init (vlib_main_t * vm) { - vxlan_main_t * vxm = &vxlan_main; - - vxm->vnet_main = vnet_get_main(); + vxlan_main_t *vxm = &vxlan_main; + + vxm->vnet_main = vnet_get_main (); vxm->vlib_main = vm; /* initialize the ip6 hash */ - vxm->vxlan6_tunnel_by_key = hash_create_mem(0, - sizeof(vxlan6_tunnel_key_t), - sizeof(uword)); - vxm->vtep6 = hash_create_mem(0, - sizeof(ip6_address_t), - sizeof(uword)); - vxm->mcast_shared = hash_create_mem(0, - sizeof(ip46_address_t), - sizeof(mcast_shared_t)); - - udp_register_dst_port (vm, UDP_DST_PORT_vxlan, - vxlan4_input_node.index, /* is_ip4 */ 1); + vxm->vxlan6_tunnel_by_key = hash_create_mem (0, + sizeof (vxlan6_tunnel_key_t), + sizeof (uword)); + vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword)); + vxm->mcast_shared = hash_create_mem (0, + sizeof (ip46_address_t), + sizeof (mcast_shared_t)); + + udp_register_dst_port (vm, UDP_DST_PORT_vxlan, + vxlan4_input_node.index, /* is_ip4 */ 1); udp_register_dst_port (vm, UDP_DST_PORT_vxlan6, - vxlan6_input_node.index, /* is_ip4 */ 0); + vxlan6_input_node.index, /* is_ip4 */ 0); - fib_node_register_type(FIB_NODE_TYPE_VXLAN_TUNNEL, &vxlan_vft); + fib_node_register_type (FIB_NODE_TYPE_VXLAN_TUNNEL, &vxlan_vft); return 0; } -VLIB_INIT_FUNCTION(vxlan_init); +VLIB_INIT_FUNCTION (vxlan_init); /* + * fd.io coding-style-patch-verification: ON + * * Local Variables: * eval: (c-set-style "gnu") * End: |