X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvnet%2Fvxlan%2Fvxlan.c;h=97098b83774c1d3f7376779bc6a2c1c878837174;hb=839dcc0fb;hp=52d0812235f69c7a2208b1efe7d65eabeac4f2ff;hpb=df3ca23f17820389fc625bbc0e7f468fce550aa9;p=vpp.git diff --git a/src/vnet/vxlan/vxlan.c b/src/vnet/vxlan/vxlan.c index 52d0812235f..97098b83774 100644 --- a/src/vnet/vxlan/vxlan.c +++ b/src/vnet/vxlan/vxlan.c @@ -16,11 +16,14 @@ #include #include #include +#include #include #include #include +#include #include #include +#include #include /** @@ -42,6 +45,13 @@ vxlan_main_t vxlan_main; +static u32 +vxlan_eth_flag_change (vnet_main_t *vnm, vnet_hw_interface_t *hi, u32 flags) +{ + /* nothing for now */ + return 0; +} + static u8 * format_decap_next (u8 * s, va_list * args) { @@ -60,11 +70,12 @@ format_vxlan_tunnel (u8 * s, va_list * args) 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); + "[%d] instance %d src %U dst %U src_port %d dst_port %d 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->src_port, t->dst_port, t->vni, t->encap_fib_index, + t->sw_if_index); s = format (s, "encap-dpo-idx %d ", t->next_dpo.dpoi_index); @@ -149,11 +160,19 @@ vxlan_tunnel_restack_dpo (vxlan_tunnel_t * t) * skip single bucket load balance dpo's */ while (DPO_LOAD_BALANCE == dpo.dpoi_type) { - load_balance_t *lb = load_balance_get (dpo.dpoi_index); + const load_balance_t *lb; + const dpo_id_t *choice; + + lb = load_balance_get (dpo.dpoi_index); if (lb->lb_n_buckets > 1) break; - dpo_copy (&dpo, load_balance_get_bucket_i (lb, 0)); + choice = load_balance_get_bucket_i (lb, 0); + + if (DPO_RECEIVE == choice->dpoi_type) + dpo_copy (&dpo, drop_dpo_get (choice->dpoi_proto)); + else + dpo_copy (&dpo, choice); } u32 encap_index = is_ip4 ? @@ -218,14 +237,15 @@ const static fib_node_vft_t vxlan_vft = { .fnv_back_walk = vxlan_tunnel_back_walk, }; - -#define foreach_copy_field \ -_(vni) \ -_(mcast_sw_if_index) \ -_(encap_fib_index) \ -_(decap_next_index) \ -_(src) \ -_(dst) +#define foreach_copy_field \ + _ (vni) \ + _ (mcast_sw_if_index) \ + _ (encap_fib_index) \ + _ (decap_next_index) \ + _ (src) \ + _ (dst) \ + _ (src_port) \ + _ (dst_port) static void vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) @@ -270,8 +290,8 @@ vxlan_rewrite (vxlan_tunnel_t * t, bool is_ip6) } /* UDP header, randomize src port on something, maybe? */ - udp->src_port = clib_host_to_net_u16 (4789); - udp->dst_port = clib_host_to_net_u16 (UDP_DST_PORT_vxlan); + udp->src_port = clib_host_to_net_u16 (t->src_port); + udp->dst_port = clib_host_to_net_u16 (t->dst_port); /* VXLAN header */ vnet_set_vni_and_flags (vxlan, t->vni); @@ -290,35 +310,6 @@ vxlan_decap_next_is_valid (vxlan_main_t * vxm, u32 is_ip6, return decap_next_index < r->n_next_nodes; } -static uword -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; -} - -static uword -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; -} - /* *INDENT-OFF* */ typedef CLIB_PACKED(union { @@ -336,7 +327,7 @@ 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); + ALWAYS_ASSERT (p); mcast_shared_t ret = {.as_u64 = *p }; return ret; } @@ -373,16 +364,26 @@ int vnet_vxlan_add_del_tunnel vxlan4_tunnel_key_t key4; vxlan6_tunnel_key_t key6; u32 is_ip6 = a->is_ip6; + vlib_main_t *vm = vlib_get_main (); + u8 hw_addr[6]; + + /* Set udp-ports */ + if (a->src_port == 0) + a->src_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan; + + if (a->dst_port == 0) + a->dst_port = is_ip6 ? UDP_DST_PORT_vxlan6 : UDP_DST_PORT_vxlan; int not_found; if (!is_ip6) { /* ip4 mcast is indexed by mcast addr only */ key4.key[0] = ip46_address_is_multicast (&a->dst) ? - a->dst.ip4.as_u32 : - a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32); - key4.key[1] = (((u64) a->encap_fib_index) << 32) - | clib_host_to_net_u32 (a->vni << 8); + a->dst.ip4.as_u32 : + a->dst.ip4.as_u32 | (((u64) a->src.ip4.as_u32) << 32); + key4.key[1] = ((u64) clib_host_to_net_u16 (a->src_port) << 48) | + (((u64) a->encap_fib_index) << 32) | + clib_host_to_net_u32 (a->vni << 8); not_found = clib_bihash_search_inline_16_8 (&vxm->vxlan4_tunnel_by_key, &key4); p = (void *) &key4.value; @@ -391,8 +392,9 @@ int vnet_vxlan_add_del_tunnel { key6.key[0] = a->dst.ip6.as_u64[0]; key6.key[1] = a->dst.ip6.as_u64[1]; - key6.key[2] = (((u64) a->encap_fib_index) << 32) - | clib_host_to_net_u32 (a->vni << 8); + key6.key[2] = (((u64) clib_host_to_net_u16 (a->src_port) << 48) | + ((u64) a->encap_fib_index) << 32) | + clib_host_to_net_u32 (a->vni << 8); not_found = clib_bihash_search_inline_24_8 (&vxm->vxlan6_tunnel_by_key, &key6); p = (void *) &key6.value; @@ -439,15 +441,32 @@ int vnet_vxlan_add_del_tunnel pool_put (vxm->tunnels, t); return VNET_API_ERROR_INSTANCE_IN_USE; } + + f64 now = vlib_time_now (vm); + u32 rnd; + rnd = (u32) (now * 1e6); + rnd = random_u32 (&rnd); + + memcpy (hw_addr + 2, &rnd, sizeof (rnd)); + hw_addr[0] = 2; + hw_addr[1] = 0xfe; + hash_set (vxm->instance_used, user_instance, 1); t->dev_instance = dev_instance; /* actual */ - t->user_instance = user_instance; /* name */ + t->user_instance = user_instance; /* name */ t->flow_index = ~0; - t->hw_if_index = vnet_register_interface - (vnm, vxlan_device_class.index, dev_instance, - vxlan_hw_class.index, dev_instance); + if (ethernet_register_interface (vnm, vxlan_device_class.index, + dev_instance, hw_addr, &t->hw_if_index, + vxlan_eth_flag_change)) + { + hash_unset (vxm->instance_used, t->user_instance); + + pool_put (vxm->tunnels, t); + return VNET_API_ERROR_SYSCALL_ERROR_2; + } + vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, t->hw_if_index); /* Set vxlan tunnel output node */ @@ -479,7 +498,7 @@ int vnet_vxlan_add_del_tunnel if (add_failed) { - vnet_delete_hw_interface (vnm, t->hw_if_index); + ethernet_delete_interface (vnm, t->hw_if_index); hash_unset (vxm->instance_used, t->user_instance); pool_put (vxm->tunnels, t); return VNET_API_ERROR_INVALID_REGISTRATION; @@ -512,12 +531,12 @@ int vnet_vxlan_add_del_tunnel * 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); + vtep_addr_ref (&vxm->vtep_table, t->encap_fib_index, &t->src); + t->fib_entry_index = fib_entry_track (t->encap_fib_index, + &tun_dst_pfx, + FIB_NODE_TYPE_VXLAN_TUNNEL, + dev_instance, + &t->sibling_index); vxlan_tunnel_restack_dpo (t); } else @@ -529,7 +548,8 @@ int vnet_vxlan_add_del_tunnel */ fib_protocol_t fp = fib_ip_proto (is_ip6); - if (vtep_addr_ref (&t->dst) == 1) + if (vtep_addr_ref (&vxm->vtep_table, + t->encap_fib_index, &t->dst) == 1) { fib_node_index_t mfei; adj_index_t ai; @@ -538,8 +558,9 @@ int vnet_vxlan_add_del_tunnel .frp_addr = zero_addr, .frp_sw_if_index = 0xffffffff, .frp_fib_index = ~0, - .frp_weight = 0, + .frp_weight = 1, .frp_flags = FIB_ROUTE_PATH_LOCAL, + .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD, }; const mfib_prefix_t mpfx = { .fp_proto = fp, @@ -553,17 +574,14 @@ int vnet_vxlan_add_del_tunnel * - 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); + &mpfx, MFIB_SOURCE_VXLAN, &path); path.frp_sw_if_index = a->mcast_sw_if_index; path.frp_flags = FIB_ROUTE_PATH_FLAG_NONE; + path.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT; mfei = mfib_table_entry_path_update (t->encap_fib_index, &mpfx, - MFIB_SOURCE_VXLAN, - &path, - MFIB_ITF_FLAG_ACCEPT); + MFIB_SOURCE_VXLAN, &path); /* * Create the mcast adjacency to send traffic to the group @@ -620,16 +638,16 @@ int vnet_vxlan_add_del_tunnel if (t->flow_index != ~0) vnet_flow_del (vnm, t->flow_index); - 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); + vtep_addr_unref (&vxm->vtep_table, t->encap_fib_index, &t->src); + fib_entry_untrack (t->fib_entry_index, t->sibling_index); } - else if (vtep_addr_unref (&t->dst) == 0) + else if (vtep_addr_unref (&vxm->vtep_table, + t->encap_fib_index, &t->dst) == 0) { mcast_shared_remove (&t->dst); } - vnet_delete_hw_interface (vnm, t->hw_if_index); + ethernet_delete_interface (vnm, t->hw_if_index); hash_unset (vxm->instance_used, t->user_instance); fib_node_deinit (&t->node); @@ -642,11 +660,11 @@ int vnet_vxlan_add_del_tunnel if (a->is_add) { /* register udp ports */ - if (!is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_vxlan, 1)) - udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan, + if (!is_ip6 && !udp_is_valid_dst_port (a->src_port, 1)) + udp_register_dst_port (vxm->vlib_main, a->src_port, vxlan4_input_node.index, 1); - if (is_ip6 && !udp_is_valid_dst_port (UDP_DST_PORT_vxlan6, 0)) - udp_register_dst_port (vxm->vlib_main, UDP_DST_PORT_vxlan6, + if (is_ip6 && !udp_is_valid_dst_port (a->src_port, 0)) + udp_register_dst_port (vxm->vlib_main, a->src_port, vxlan6_input_node.index, 0); } @@ -704,6 +722,8 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, u32 mcast_sw_if_index = ~0; u32 decap_next_index = VXLAN_INPUT_NEXT_L2_INPUT; u32 vni = 0; + u32 src_port = 0; + u32 dst_port = 0; u32 table_id; clib_error_t *parse_error = NULL; @@ -749,6 +769,10 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, ; else if (unformat (line_input, "vni %d", &vni)) ; + else if (unformat (line_input, "src_port %d", &src_port)) + ; + else if (unformat (line_input, "dst_port %d", &dst_port)) + ; else { parse_error = clib_error_return (0, "parse error: '%U'", @@ -848,11 +872,17 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, * * @cliexpar * Example of how to create a VXLAN Tunnel: - * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id 7} + * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 encap-vrf-id + 7} * Example of how to create a VXLAN Tunnel with a known name, vxlan_tunnel42: * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 instance 42} - * Example of how to create a multicast VXLAN Tunnel with a known name, vxlan_tunnel23: - * @cliexcmd{create vxlan tunnel src 10.0.3.1 group 239.1.1.1 GigabitEthernet0/8/0 instance 23} + * Example of how to create a multicast VXLAN Tunnel with a known name, + vxlan_tunnel23: + * @cliexcmd{create vxlan tunnel src 10.0.3.1 group 239.1.1.1 + GigabitEthernet0/8/0 instance 23} + * Example of how to create a VXLAN Tunnel with custom udp-ports: + * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 src_port + 59000 dst_port 59001} * Example of how to delete a VXLAN Tunnel: * @cliexcmd{create vxlan tunnel src 10.0.3.1 dst 10.0.3.3 vni 13 del} ?*/ @@ -860,10 +890,11 @@ vxlan_add_del_tunnel_command_fn (vlib_main_t * vm, VLIB_CLI_COMMAND (create_vxlan_tunnel_command, static) = { .path = "create vxlan tunnel", .short_help = - "create vxlan tunnel src " - " {dst |group } vni " - " [instance ]" - " [encap-vrf-id ] [decap-next [l2|node ]] [del]", + "create vxlan tunnel src " + " {dst |group } vni " + " [instance ]" + " [encap-vrf-id ] [decap-next [l2|node ]] [del]" + " [src_port ] [dst_port ]", .function = vxlan_add_del_tunnel_command_fn, }; /* *INDENT-ON* */ @@ -890,10 +921,10 @@ show_vxlan_tunnel_command_fn (vlib_main_t * vm, vlib_cli_output (vm, "No vxlan tunnels configured..."); /* *INDENT-OFF* */ - pool_foreach (t, vxm->tunnels, - ({ + pool_foreach (t, vxm->tunnels) + { vlib_cli_output (vm, "%U", format_vxlan_tunnel, t); - })); + } /* *INDENT-ON* */ if (raw) @@ -915,7 +946,8 @@ show_vxlan_tunnel_command_fn (vlib_main_t * vm, * @cliexpar * Example of how to display the VXLAN Tunnel entries: * @cliexstart{show vxlan tunnel} - * [0] src 10.0.3.1 dst 10.0.3.3 vni 13 encap_fib_index 0 sw_if_index 5 decap_next l2 + * [0] src 10.0.3.1 dst 10.0.3.3 src_port 4789 dst_port 4789 vni 13 + encap_fib_index 0 sw_if_index 5 decap_next l2 * @cliexend ?*/ /* *INDENT-OFF* */ @@ -1119,7 +1151,7 @@ set_ip6_vxlan_bypass (vlib_main_t * vm, VLIB_CLI_COMMAND (set_interface_ip6_vxlan_bypass_command, static) = { .path = "set interface ip6 vxlan-bypass", .function = set_ip6_vxlan_bypass, - .short_help = "set interface ip vxlan-bypass [del]", + .short_help = "set interface ip6 vxlan-bypass [del]", }; /* *INDENT-ON* */ @@ -1136,14 +1168,20 @@ vnet_vxlan_add_del_rx_flow (u32 hw_if_index, u32 t_index, int is_add) vxlan_main_t *vxm = &vxlan_main; vnet_flow_t flow = { .actions = - VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_MARK, + VNET_FLOW_ACTION_REDIRECT_TO_NODE | VNET_FLOW_ACTION_MARK | + VNET_FLOW_ACTION_BUFFER_ADVANCE, .mark_flow_id = t->dev_instance + vxm->flow_id_start, .redirect_node_index = vxlan4_flow_input_node.index, + .buffer_advance = sizeof (ethernet_header_t), .type = VNET_FLOW_TYPE_IP4_VXLAN, .ip4_vxlan = { - .src_addr = t->dst.ip4, - .dst_addr = t->src.ip4, - .dst_port = UDP_DST_PORT_vxlan, + .protocol.prot = IP_PROTOCOL_UDP, + .src_addr.addr = t->dst.ip4, + .dst_addr.addr = t->src.ip4, + .src_addr.mask.as_u32 = ~0, + .dst_addr.mask.as_u32 = ~0, + .dst_port.port = t->src_port, + .dst_port.mask = 0xFF, .vni = t->vni, } , @@ -1261,7 +1299,7 @@ vxlan_init (vlib_main_t * vm) VXLAN_HASH_NUM_BUCKETS, VXLAN_HASH_MEMORY_SIZE); clib_bihash_init_24_8 (&vxm->vxlan6_tunnel_by_key, "vxlan6", VXLAN_HASH_NUM_BUCKETS, VXLAN_HASH_MEMORY_SIZE); - vxm->vtep6 = hash_create_mem (0, sizeof (ip6_address_t), sizeof (uword)); + vxm->vtep_table = vtep_table_create (); vxm->mcast_shared = hash_create_mem (0, sizeof (ip46_address_t), sizeof (mcast_shared_t));