/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Copyright (c) 2018 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:
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
-#include "sixrd.h"
-#include <vnet/plugin/plugin.h>
-
-#include <vnet/fib/fib_table.h>
-#include <vnet/fib/ip6_fib.h>
-#include <vnet/adj/adj.h>
-#include <vpp/app/version.h>
-
-/*
+/**
* This code supports the following sixrd modes:
- *
+ *
* 32 EA bits (Complete IPv4 address is embedded):
* ea_bits_len = 32
* IPv4 suffix is embedded:
* ea_bits_len = 0
*/
+#include "sixrd.h"
+#include <vnet/plugin/plugin.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vnet/adj/adj.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/adj/adj_midchain.h>
+#include <vnet/adj/adj_delegate.h>
+#include <vnet/dpo/lookup_dpo.h>
+#include <vpp/app/version.h> // Really needed?
+
+/* define message IDs */
+#include "sixrd_msg_enum.h"
+
+/* define message structures */
+#define vl_typedefs
+#include "sixrd_all_api_h.h"
+#undef vl_typedefs
+
+/* define generated endian-swappers */
+#define vl_endianfun
+#include "sixrd_all_api_h.h"
+#undef vl_endianfun
+
+/* instantiate all the print functions we know about */
+#define vl_print(handle, ...) vlib_cli_output(handle, __VA_ARGS__)
+#define vl_printfun
+#include "sixrd_all_api_h.h"
+#undef vl_printfun
+
+/* Get the API version number */
+#define vl_api_version(n, v) static u32 api_version = (v);
+#include "sixrd_all_api_h.h"
+#undef vl_api_version
+
+#define REPLY_MSG_ID_BASE sm->msg_id_base
+#include <vlibapi/api_helper_macros.h>
+
+extern vlib_node_registration_t ip4_sixrd_node;
+
+/**
+ * Adj delegate data
+ */
+typedef struct sixrd_adj_delegate_t_
+{
+ /**
+ * linkage to the adj
+ */
+ u32 adj_index;
+
+ /**
+ * Linnkage to the FIB node graph
+ */
+ fib_node_t sixrd_node;
+
+ /**
+ * tracking of the IPv4 next-hop
+ */
+ fib_node_index_t sixrd_fib_entry_index;
+
+ /**
+ * sibling on the fib-entry
+ */
+ u32 sixrd_sibling;
+} sixrd_adj_delegate_t;
+
+/**
+ * Pool of delegate structs
+ */
+static sixrd_adj_delegate_t *sixrd_adj_delegate_pool;
+
+/**
+ * Adj delegate registered type
+ */
+static adj_delegate_type_t sixrd_adj_delegate_type;
+
+/**
+ * FIB node registered type
+ */
+static fib_node_type_t sixrd_fib_node_type;
+
+static inline sixrd_adj_delegate_t *
+sixrd_adj_from_base (adj_delegate_t * ad)
+{
+ if (NULL == ad)
+ {
+ return (NULL);
+ }
+ return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index));
+}
+
+static inline const sixrd_adj_delegate_t *
+sixrd_adj_from_const_base (const adj_delegate_t * ad)
+{
+ if (NULL == ad)
+ {
+ return (NULL);
+ }
+ return (pool_elt_at_index (sixrd_adj_delegate_pool, ad->ad_index));
+}
+
sixrd_main_t sixrd_main;
-int
-sixrd_create_domain (ip6_address_t *ip6_prefix,
- u8 ip6_prefix_len,
- ip4_address_t *ip4_prefix,
- u8 ip4_prefix_len,
- ip4_address_t *ip4_src,
- u32 *sixrd_domain_index,
- u16 mtu)
+static void
+sixrd_fixup (vlib_main_t * vm,
+ ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
{
- dpo_id_t dpo_v6 = DPO_INVALID, dpo_v4 = DPO_INVALID;
- sixrd_main_t *mm = &sixrd_main;
- fib_node_index_t fei;
- sixrd_domain_t *d;
-
- /* Get domain index */
- pool_get_aligned(mm->domains, d, CLIB_CACHE_LINE_BYTES);
- memset(d, 0, sizeof (*d));
- *sixrd_domain_index = d - mm->domains;
-
- /* Init domain struct */
- d->ip4_prefix.as_u32 = ip4_prefix->as_u32;
- d->ip4_prefix_len = ip4_prefix_len;
- d->ip6_prefix = *ip6_prefix;
- d->ip6_prefix_len = ip6_prefix_len;
- d->ip4_src = *ip4_src;
- d->mtu = mtu;
-
- if (ip4_prefix_len < 32)
- d->shift = 64 - ip6_prefix_len + (32 - ip4_prefix_len);
-
- /* Create IPv6 route/adjacency */
- fib_prefix_t pfx6 = {
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_len = d->ip6_prefix_len,
- .fp_addr = {
- .ip6 = d->ip6_prefix,
- },
- };
- sixrd_dpo_create(DPO_PROTO_IP6,
- *sixrd_domain_index,
- &dpo_v6);
- fib_table_entry_special_dpo_add(0, &pfx6,
- FIB_SOURCE_SIXRD,
- FIB_ENTRY_FLAG_EXCLUSIVE,
- &dpo_v6);
- dpo_reset (&dpo_v6);
+ ip4_header_t *ip4 = vlib_buffer_get_current (b0);
+ ip6_header_t *ip6 = vlib_buffer_get_current (b0) + sizeof (ip4_header_t);
+ const sixrd_tunnel_t *t = data;
+
+ ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
+ ip4->dst_address.as_u32 =
+ sixrd_get_addr_net (t, ip6->dst_address.as_u64[0]);
+ ip4->checksum = ip4_header_checksum (ip4);
+}
+
+static void
+ip6ip_fixup (vlib_main_t * vm,
+ ip_adjacency_t * adj, vlib_buffer_t * b0, const void *data)
+{
+ const sixrd_tunnel_t *t = data;
+ ip4_header_t *ip4 = vlib_buffer_get_current (b0);
+ ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
+ ip4->dst_address.as_u32 =
+ sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]);
+ ip4->checksum = ip4_header_checksum (ip4);
+}
+
+static sixrd_tunnel_t *
+find_tunnel_by_sw_if_index (u32 sw_if_index)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ u32 ti = sm->tunnel_index_by_sw_if_index[sw_if_index];
+ if (ti == ~0)
+ {
+ clib_warning ("Not our tunnel\n");
+ return (0);
+ }
+ return pool_elt_at_index (sm->tunnels, ti);
+}
+
+static sixrd_tunnel_t *
+find_tunnel (ip6_address_t * ip6_prefix)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ sixrd_tunnel_t *d;
+
+ /* *INDENT-OFF* */
+ pool_foreach (d, sm->tunnels,
+ ({
+ if (!memcmp (&d->ip6_prefix, ip6_prefix, 16))
+ return d;
+ }));
+ /* *INDENT-ON* */
+ return 0;
+}
+
+
+static u8 *
+sixrd_build_rewrite (vnet_main_t * vnm,
+ u32 sw_if_index,
+ vnet_link_t link_type, const void *dst_address)
+{
+ u8 *rewrite = NULL;
+ sixrd_tunnel_t *t;
+
+ t = find_tunnel_by_sw_if_index (sw_if_index);
+ if (!t)
+ {
+ return 0;
+ }
+
+ vec_validate (rewrite, sizeof (ip4_header_t) - 1);
+ ip4_header_t *ip4 = (ip4_header_t *) rewrite;
+ ip4->ip_version_and_header_length = 0x45;
+ ip4->ttl = 64;
+ ip4->protocol = IP_PROTOCOL_IPV6;
+ /* fixup ip4 header length and checksum after-the-fact */
+ ip4->src_address.as_u32 = t->ip4_src.as_u32;
+ ip4->dst_address.as_u32 = 0;
+ ip4->checksum = ip4_header_checksum (ip4);
+
+ return rewrite;
+}
+
+static void
+ip6ip_tunnel_stack (adj_index_t ai, u32 fib_entry_index)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ ip_adjacency_t *adj = adj_get (ai);
+ sixrd_tunnel_t *t;
+ u32 sw_if_index = adj->rewrite_header.sw_if_index;
+
+ if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) ||
+ (~0 == sm->tunnel_index_by_sw_if_index[sw_if_index]))
+ return;
+
+ t =
+ pool_elt_at_index (sm->tunnels,
+ sm->tunnel_index_by_sw_if_index[sw_if_index]);
/*
- * Multiple SIXRD domains may share same source IPv4 TEP
- * In this case the route will exist and be SixRD sourced.
- * Find the adj (if any) already contributed and modify it
+ * find the adjacency that is contributed by the FIB entry
+ * that this tunnel resolves via, and use it as the next adj
+ * in the midchain
*/
- fib_prefix_t pfx4 = {
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_len = 32,
- .fp_addr = {
- .ip4 = d->ip4_src,
- },
+ if (vnet_hw_interface_get_flags (vnet_get_main (), t->hw_if_index) &
+ VNET_HW_INTERFACE_FLAG_LINK_UP)
+ {
+ adj_nbr_midchain_stack (ai,
+ fib_entry_contribute_ip_forwarding
+ (fib_entry_index));
+ }
+ else
+ {
+ adj_nbr_midchain_unstack (ai);
+ }
+}
+
+static void
+sixrd_tunnel_stack (adj_index_t ai, u32 fib_index)
+{
+ dpo_id_t dpo = DPO_INVALID;
+ sixrd_main_t *sm = &sixrd_main;
+ ip_adjacency_t *adj = adj_get (ai);
+ u32 sw_if_index = adj->rewrite_header.sw_if_index;
+
+ if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) ||
+ (~0 == sm->tunnel_index_by_sw_if_index[sw_if_index]))
+ return;
+
+ if ((vec_len (sm->tunnel_index_by_sw_if_index) < sw_if_index) ||
+ (sm->tunnel_index_by_sw_if_index[sw_if_index] == ~0))
+ return;
+
+ lookup_dpo_add_or_lock_w_fib_index (fib_index, DPO_PROTO_IP4,
+ LOOKUP_UNICAST, LOOKUP_INPUT_DST_ADDR,
+ LOOKUP_TABLE_FROM_CONFIG, &dpo);
+ adj_nbr_midchain_stack (ai, &dpo);
+}
+
+const static ip46_address_t sixrd_special_nh = {
+ .ip6 = {
+ .as_u64 = {
+ [0] = 0xffffffffffffffff,
+ [1] = 0xffffffffffffffff,
+ },
+ },
+};
+
+static void
+sixrd_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
+{
+ ip_adjacency_t *adj = adj_get (ai);
+ sixrd_tunnel_t *t = find_tunnel_by_sw_if_index (sw_if_index);
+
+ if (!memcmp (&sixrd_special_nh,
+ &adj->sub_type.nbr.next_hop, sizeof (sixrd_special_nh)))
+ {
+ adj_nbr_midchain_update_rewrite (ai, sixrd_fixup, t, ADJ_FLAG_NONE,
+ sixrd_build_rewrite (vnm, sw_if_index,
+ adj_get_link_type
+ (ai), NULL));
+ sixrd_tunnel_stack (ai, t->fib_index);
+ }
+ else
+ {
+ sixrd_adj_delegate_t *sixrd_ad;
+ ip4_address_t da4;
+
+ da4.as_u32 =
+ sixrd_get_addr_net (t, adj->sub_type.nbr.next_hop.as_u64[0]);
+
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = 32,
+ .fp_addr = {.ip4 = da4,}
+ ,
+ };
+
+ adj_nbr_midchain_update_rewrite
+ (ai, ip6ip_fixup, t,
+ ADJ_FLAG_NONE,
+ sixrd_build_rewrite (vnm, sw_if_index,
+ adj_get_link_type (ai), NULL));
+
+ sixrd_ad =
+ sixrd_adj_from_base (adj_delegate_get (adj, sixrd_adj_delegate_type));
+ if (NULL == sixrd_ad)
+ {
+ pool_get (sixrd_adj_delegate_pool, sixrd_ad);
+ fib_node_init (&sixrd_ad->sixrd_node, sixrd_fib_node_type);
+ sixrd_ad->adj_index = ai;
+ sixrd_ad->sixrd_fib_entry_index =
+ fib_table_entry_special_add (t->fib_index, &pfx,
+ FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE);
+ sixrd_ad->sixrd_sibling =
+ fib_entry_child_add (sixrd_ad->sixrd_fib_entry_index,
+ sixrd_fib_node_type,
+ sixrd_ad - sixrd_adj_delegate_pool);
+
+ adj_delegate_add (adj,
+ sixrd_adj_delegate_type,
+ sixrd_ad - sixrd_adj_delegate_pool);
+
+ ip6ip_tunnel_stack (ai, sixrd_ad->sixrd_fib_entry_index);
+ }
+ }
+}
+
+
+clib_error_t *
+sixrd_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
+{
+ /* Always up */
+ vnet_hw_interface_set_flags (vnm, hw_if_index,
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
+ return /* no error */ 0;
+}
+
+/* *INDENT-OFF* */
+VNET_HW_INTERFACE_CLASS (sixrd_hw_interface_class) =
+{
+ .name = "ip6ip-6rd",
+ .build_rewrite = sixrd_build_rewrite,
+ .update_adjacency = sixrd_update_adj,
+};
+
+VNET_DEVICE_CLASS (sixrd_device_class) =
+{
+ .name = "ip6ip-6rd",
+ .admin_up_down_function = sixrd_interface_admin_up_down,
+#ifdef SOON
+ .clear counter = 0;
+#endif
+};
+/* *INDENT-ON* */
+
+static int
+sixrd_create_tunnel (ip6_address_t * ip6_prefix, u8 ip6_prefix_len,
+ ip4_address_t * ip4_prefix, u8 ip4_prefix_len,
+ ip4_address_t * ip4_src, u16 mtu, bool security_check,
+ u32 fib_index, u32 * sixrd_tunnel_index)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ sixrd_tunnel_t *t;
+
+ if (fib_index == ~0)
+ return VNET_API_ERROR_NO_SUCH_FIB;
+
+ if ((ip6_prefix_len + 32 - ip4_prefix_len) > 64)
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ /* Tunnel already configured */
+ if (find_tunnel (ip6_prefix))
+ return VNET_API_ERROR_INVALID_VALUE;
+ /* Tunnel already configured for this source */
+ if (find_tunnel_by_ip4_address (ip4_src))
+ return VNET_API_ERROR_INVALID_VALUE;
+
+ /* Get tunnel index */
+ pool_get_aligned (sm->tunnels, t, CLIB_CACHE_LINE_BYTES);
+ memset (t, 0, sizeof (*t));
+ t->tunnel_index = t - sm->tunnels;
+
+ /* Init tunnel struct */
+ t->ip4_prefix.as_u32 = ip4_prefix->as_u32;
+ t->ip4_prefix_len = ip4_prefix_len;
+ t->ip6_prefix = *ip6_prefix;
+ t->ip6_prefix_len = ip6_prefix_len;
+ t->ip4_src = *ip4_src;
+ t->mtu = mtu ? mtu : SIXRD_DEFAULT_MTU;
+ t->security_check = security_check;
+
+ t->shift = (ip4_prefix_len < 32) ?
+ 64 - ip6_prefix_len - (32 - ip4_prefix_len) : 0;
+
+ /* Create interface */
+ u32 hw_if_index = vnet_register_interface (vnet_get_main (),
+ sixrd_device_class.index,
+ t->tunnel_index,
+ sixrd_hw_interface_class.index,
+ t->tunnel_index);
+
+ /* Default the interface to up and enable IPv6 (payload) */
+ vnet_hw_interface_t *hi =
+ vnet_get_hw_interface (vnet_get_main (), hw_if_index);
+ t->hw_if_index = hw_if_index;
+ t->fib_index = fib_index;
+ t->sw_if_index = hi->sw_if_index;
+
+ hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
+ t->mtu;
+
+ vec_validate_init_empty (sm->tunnel_index_by_sw_if_index, hi->sw_if_index,
+ ~0);
+ sm->tunnel_index_by_sw_if_index[hi->sw_if_index] = t->tunnel_index;
+
+ hash_set (sm->tunnel_by_ip, ip4_src->as_u32, t->tunnel_index);
+
+ vnet_hw_interface_set_flags (vnet_get_main (), hw_if_index,
+ VNET_HW_INTERFACE_FLAG_LINK_UP);
+ vnet_sw_interface_set_flags (vnet_get_main (), hi->sw_if_index,
+ VNET_SW_INTERFACE_FLAG_ADMIN_UP);
+
+ /* Create IPv6 route/adjacency */
+ fib_prefix_t pfx6 = {
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_len = t->ip6_prefix_len,
+ .fp_addr = {.ip6 = t->ip6_prefix,}
+ ,
};
- fei = fib_table_lookup_exact_match(0, &pfx4);
-
- if (FIB_NODE_INDEX_INVALID != fei)
- {
- dpo_id_t dpo = DPO_INVALID;
-
- if (fib_entry_get_dpo_for_source (fei, FIB_SOURCE_SIXRD, &dpo))
- {
- /*
- * modify the existing adj to indicate it's shared
- * skip to route add.
- * It is locked to pair with the unlock below.
- */
- const dpo_id_t *sd_dpo;
- sixrd_dpo_t *sd;
-
- ASSERT(DPO_LOAD_BALANCE == dpo.dpoi_type);
-
- sd_dpo = load_balance_get_bucket(dpo.dpoi_index, 0);
- sd = sixrd_dpo_get (sd_dpo->dpoi_index);
-
- sd->sd_domain = ~0;
- dpo_copy (&dpo_v4, sd_dpo);
- dpo_reset (&dpo);
-
- goto route_add;
- }
- }
- /* first time addition of the route */
- sixrd_dpo_create(DPO_PROTO_IP4,
- *sixrd_domain_index,
- &dpo_v4);
-
-route_add:
- /*
- * Create ip4 route. This is a reference counted add. If the prefix
- * already exists and is SixRD sourced, it is now SixRD source n+1 times
- * and will need to be removed n+1 times.
- */
- fib_table_entry_special_dpo_add(0, &pfx4,
- FIB_SOURCE_SIXRD,
- FIB_ENTRY_FLAG_EXCLUSIVE,
- &dpo_v4);
- dpo_reset (&dpo_v4);
+
+ fib_table_entry_update_one_path (fib_index, &pfx6,
+ FIB_SOURCE_CLI, FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP6, &sixrd_special_nh,
+ hi->sw_if_index,
+ ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
+
+ *sixrd_tunnel_index = hi->sw_if_index;
+
+ ip4_register_protocol (IP_PROTOCOL_IPV6, ip4_sixrd_node.index);
return 0;
}
/*
- * sixrd_delete_domain
+ * sixrd_delete_tunnel
*/
int
-sixrd_delete_domain (u32 sixrd_domain_index)
+sixrd_delete_tunnel (u32 sw_if_index)
{
- sixrd_main_t *mm = &sixrd_main;
- sixrd_domain_t *d;
-
- if (pool_is_free_index(mm->domains, sixrd_domain_index)) {
- clib_warning("SIXRD domain delete: domain does not exist: %d",
- sixrd_domain_index);
- return -1;
- }
-
- d = pool_elt_at_index(mm->domains, sixrd_domain_index);
-
- fib_prefix_t pfx = {
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_len = 32,
- .fp_addr = {
- .ip4 = d->ip4_src,
- },
- };
- fib_table_entry_special_remove(0, &pfx, FIB_SOURCE_SIXRD);
+ sixrd_main_t *sm = &sixrd_main;
+ sixrd_tunnel_t *t = find_tunnel_by_sw_if_index (sw_if_index);
+
+ if (!t)
+ {
+ clib_warning ("SIXRD tunnel delete: tunnel does not exist: %d",
+ sw_if_index);
+ return -1;
+ }
fib_prefix_t pfx6 = {
- .fp_proto = FIB_PROTOCOL_IP6,
- .fp_len = d->ip6_prefix_len,
- .fp_addr = {
- .ip6 = d->ip6_prefix,
- },
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_len = t->ip6_prefix_len,
+ .fp_addr = {.ip6 = t->ip6_prefix,}
+ ,
};
- fib_table_entry_special_remove(0, &pfx6, FIB_SOURCE_SIXRD);
+ fib_table_entry_special_remove (0, &pfx6, FIB_SOURCE_CLI);
+ vnet_sw_interface_set_flags (vnet_get_main (), t->sw_if_index,
+ 0 /* down */ );
+
+ sm->tunnel_index_by_sw_if_index[t->sw_if_index] = ~0;
+
+ hash_unset (sm->tunnel_by_ip, t->ip4_src.as_u32);
- pool_put(mm->domains, d);
+ vnet_delete_hw_interface (vnet_get_main (), t->hw_if_index);
+
+ pool_put (sm->tunnels, t);
return 0;
}
static clib_error_t *
-sixrd_add_domain_command_fn (vlib_main_t *vm,
- unformat_input_t *input,
- vlib_cli_command_t *cmd)
+sixrd_add_del_tunnel_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
ip4_address_t ip4_prefix;
ip6_address_t ip6_prefix;
ip4_address_t ip4_src;
- u32 ip6_prefix_len=0, ip4_prefix_len=0, sixrd_domain_index;
+ u32 ip6_prefix_len = 0, ip4_prefix_len = 0, sixrd_tunnel_index;
u32 num_m_args = 0;
/* Optional arguments */
u32 mtu = 0;
+ u32 fib_index = 0;
clib_error_t *error = 0;
+ bool is_add = true, security_check = false;
/* 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, "ip6-pfx %U/%d", unformat_ip6_address, &ip6_prefix, &ip6_prefix_len))
- num_m_args++;
- else if (unformat(line_input, "ip4-pfx %U/%d", unformat_ip4_address, &ip4_prefix, &ip4_prefix_len))
- num_m_args++;
- else if (unformat(line_input, "ip4-src %U", unformat_ip4_address, &ip4_src))
- num_m_args++;
- else if (unformat(line_input, "mtu %d", &mtu))
- num_m_args++;
- else {
- error = clib_error_return(0, "unknown input `%U'",
- format_unformat_error, line_input);
- goto done;
+ while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (line_input, "del"))
+ is_add = false;
+ if (unformat (line_input, "security-check"))
+ security_check = true;
+ else
+ if (unformat
+ (line_input, "ip6-pfx %U/%d", unformat_ip6_address, &ip6_prefix,
+ &ip6_prefix_len))
+ num_m_args++;
+ else if (unformat (line_input, "ip4-pfx %U/%d", unformat_ip4_address,
+ &ip4_prefix, &ip4_prefix_len))
+ num_m_args++;
+ else
+ if (unformat
+ (line_input, "ip4-src %U", unformat_ip4_address, &ip4_src))
+ num_m_args++;
+ else if (unformat (line_input, "mtu %d", &mtu))
+ num_m_args++;
+ else if (unformat (line_input, "fib-id %d", &fib_index))
+ ;
+ else
+ {
+ error =
+ clib_error_return (0, "unknown input `%U'", format_unformat_error,
+ line_input);
+ goto done;
+ }
}
- }
-
- if (num_m_args < 3) {
- error = clib_error_return(0, "mandatory argument(s) missing");
- goto done;
- }
- sixrd_create_domain(&ip6_prefix, ip6_prefix_len, &ip4_prefix, ip4_prefix_len,
- &ip4_src, &sixrd_domain_index, mtu);
+ if (num_m_args < 3)
+ {
+ error = clib_error_return (0, "mandatory argument(s) missing");
+ goto done;
+ }
+ if (is_add)
+ {
+ int rv = sixrd_create_tunnel (&ip6_prefix, ip6_prefix_len, &ip4_prefix,
+ ip4_prefix_len, &ip4_src, mtu,
+ security_check,
+ fib_index, &sixrd_tunnel_index);
+ if (rv)
+ error = clib_error_return (0, "adding tunnel failed");
+ }
+ else
+ {
+ sixrd_tunnel_t *t = find_tunnel (&ip6_prefix);
+ if (t)
+ {
+ sixrd_delete_tunnel (t->sw_if_index);
+ }
+ }
done:
unformat_free (line_input);
return error;
}
-static clib_error_t *
-sixrd_del_domain_command_fn (vlib_main_t *vm,
- unformat_input_t *input,
- vlib_cli_command_t *cmd)
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (sixrd_add_del_tunnel_command, static) =
{
- unformat_input_t _line_input, *line_input = &_line_input;
- u32 num_m_args = 0;
- u32 sixrd_domain_index;
- clib_error_t *error = 0;
-
- /* Get a line of 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, "index %d", &sixrd_domain_index))
- num_m_args++;
- else {
- error = clib_error_return(0, "unknown input `%U'",
- format_unformat_error, line_input);
- goto done;
- }
- }
+ .path = "create 6rd tunnel",
+ .short_help = "create 6rd tunnel ip6-pfx <ip6-pfx> ip4-pfx <ip4-pfx> "
+ "ip4-src <ip4-addr> [del]",
+ .function = sixrd_add_del_tunnel_command_fn,
+};
+/* *INDENT-ON* */
- if (num_m_args != 1) {
- error = clib_error_return(0, "mandatory argument(s) missing");
- goto done;
- }
+static void
+vl_api_sixrd_add_tunnel_t_handler (vl_api_sixrd_add_tunnel_t * mp)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ vl_api_sixrd_add_tunnel_reply_t *rmp;
+ u32 sixrd_tunnel_index;
+
+ int rv = sixrd_create_tunnel ((ip6_address_t *) & mp->ip6_prefix,
+ mp->ip6_prefix_len,
+ (ip4_address_t *) & mp->ip4_prefix,
+ mp->ip4_prefix_len,
+ (ip4_address_t *) & mp->ip4_src,
+ ntohs (mp->mtu),
+ mp->security_check, ntohl (mp->fib_index),
+ &sixrd_tunnel_index);
+
+ REPLY_MACRO2 (VL_API_SIXRD_ADD_TUNNEL_REPLY, (
+ {
+ rmp->sw_if_index =
+ htonl (sixrd_tunnel_index);
+ }));
+}
- sixrd_delete_domain(sixrd_domain_index);
+static void
+vl_api_sixrd_del_tunnel_t_handler (vl_api_sixrd_del_tunnel_t * mp)
+{
+ sixrd_main_t *sm = &sixrd_main;
+ vl_api_sixrd_del_tunnel_reply_t *rmp;
-done:
- unformat_free (line_input);
+ int rv = sixrd_delete_tunnel (ntohl (mp->sw_if_index));
- return error;
+ REPLY_MACRO (VL_API_SIXRD_DEL_TUNNEL_REPLY);
}
-static u8 *
-format_sixrd_domain (u8 *s, va_list *args)
+/* List of message types that this plugin understands */
+
+#define foreach_sixrd_plugin_api_msg \
+_(SIXRD_ADD_TUNNEL, sixrd_add_tunnel) \
+_(SIXRD_DEL_TUNNEL, sixrd_del_tunnel)
+
+/* *INDENT-OFF* */
+VLIB_PLUGIN_REGISTER() = {
+ .version = VPP_BUILD_VER,
+ .description = "IPv6 Rapid Deployment on IPv4 Infrastructure (RFC5969)",
+};
+/* *INDENT-ON* */
+
+/**
+ * @brief Set up the API message handling tables.
+ */
+static clib_error_t *
+sixrd_plugin_api_hookup (vlib_main_t * vm)
{
- sixrd_domain_t *d = va_arg(*args, sixrd_domain_t *);
- sixrd_main_t *mm = &sixrd_main;
+ sixrd_main_t *sm = &sixrd_main;
- s = format(s,
- "[%d] ip6-pfx %U/%d ip4-pfx %U/%d ip4-src %U mtu %d",
- d - mm->domains,
- format_ip6_address, &d->ip6_prefix, d->ip6_prefix_len,
- format_ip4_address, &d->ip4_prefix, d->ip4_prefix_len,
- format_ip4_address, &d->ip4_src, d->mtu);
+#define _(N, n) \
+ vl_msg_api_set_handlers((VL_API_##N + sm->msg_id_base), #n, \
+ vl_api_##n##_t_handler, vl_noop_handler, \
+ vl_api_##n##_t_endian, vl_api_##n##_t_print, \
+ sizeof(vl_api_##n##_t), 1);
+ foreach_sixrd_plugin_api_msg;
+#undef _
- return s;
+ return 0;
}
-static clib_error_t *
-show_sixrd_domain_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
+#define vl_msg_name_crc_list
+#include "sixrd_all_api_h.h"
+#undef vl_msg_name_crc_list
+
+static void
+setup_message_id_table (sixrd_main_t * sm, api_main_t * am)
{
- sixrd_main_t *mm = &sixrd_main;
- sixrd_domain_t *d;
+#define _(id, n, crc) \
+ vl_msg_api_add_msg_name_crc(am, #n "_" #crc, id + sm->msg_id_base);
+ foreach_vl_msg_name_crc_sixrd;
+#undef _
+}
- if (pool_elts(mm->domains) == 0)
- vlib_cli_output(vm, "No SIXRD domains are configured...");
+static void
+sixrd_adj_delegate_adj_deleted (adj_delegate_t * aed)
+{
+ sixrd_adj_delegate_t *sixrd_ad;
- pool_foreach(d, mm->domains, ({vlib_cli_output(vm, "%U", format_sixrd_domain, d);}));
+ sixrd_ad = sixrd_adj_from_base (aed);
- return 0;
+ fib_entry_child_remove (sixrd_ad->sixrd_fib_entry_index,
+ sixrd_ad->sixrd_sibling);
+ fib_table_entry_delete_index (sixrd_ad->sixrd_fib_entry_index,
+ FIB_SOURCE_RR);
+ pool_put (sixrd_adj_delegate_pool, sixrd_ad);
}
-static clib_error_t *
-show_sixrd_stats_command_fn (vlib_main_t *vm, unformat_input_t *input, vlib_cli_command_t *cmd)
+static u8 *
+sixrd_adj_delegate_format (const adj_delegate_t * aed, u8 * s)
{
- sixrd_main_t *mm = &sixrd_main;
- sixrd_domain_t *d;
- int domains = 0, domaincount = 0;
- if (pool_elts (mm->domains) == 0)
- vlib_cli_output (vm, "No SIXRD domains are configured...");
-
- pool_foreach(d, mm->domains, ({
- domains += sizeof(*d);
- domaincount++;
- }));
+ const sixrd_adj_delegate_t *sixrd_ad;
- vlib_cli_output(vm, "SIXRD domains structure: %d\n", sizeof (sixrd_domain_t));
- vlib_cli_output(vm, "SIXRD domains: %d (%d bytes)\n", domaincount, domains);
+ sixrd_ad = sixrd_adj_from_const_base (aed);
- return 0;
+ s = format (s, "SIXRD:[fib-entry:%d]", sixrd_ad->sixrd_fib_entry_index);
+
+ return (s);
}
-/*
- * packet trace format function
- */
-u8 *
-format_sixrd_trace (u8 *s, va_list *args)
+static void
+sixrd_fib_node_last_lock_gone (fib_node_t * node)
+{
+ // top of the dependency tree, locks not managed here.
+}
+
+static sixrd_adj_delegate_t *
+sixrd_adj_delegate_from_fib_node (fib_node_t * node)
+{
+ return ((sixrd_adj_delegate_t *) (((char *) node) -
+ STRUCT_OFFSET_OF (sixrd_adj_delegate_t,
+ sixrd_node)));
+}
+
+static fib_node_back_walk_rc_t
+sixrd_fib_node_back_walk_notify (fib_node_t * node,
+ fib_node_back_walk_ctx_t * ctx)
{
- CLIB_UNUSED(vlib_main_t *vm) = va_arg (*args, vlib_main_t *);
- CLIB_UNUSED(vlib_node_t *node) = va_arg (*args, vlib_node_t *);
- sixrd_trace_t *t = va_arg (*args, sixrd_trace_t *);
- u32 sixrd_domain_index = t->sixrd_domain_index;
+ sixrd_adj_delegate_t *sixrd_ad;
- s = format(s, "SIXRD domain index: %d", sixrd_domain_index);
+ sixrd_ad = sixrd_adj_delegate_from_fib_node (node);
- return s;
+ ip6ip_tunnel_stack (sixrd_ad->adj_index, sixrd_ad->sixrd_fib_entry_index);
+
+ return (FIB_NODE_BACK_WALK_CONTINUE);
}
-VLIB_CLI_COMMAND(sixrd_add_domain_command, static) = {
- .path = "sixrd add domain",
- .short_help =
- "sixrd add domain ip6-pfx <ip6-pfx> ip4-pfx <ip4-pfx> ip4-src <ip4-addr>",
- .function = sixrd_add_domain_command_fn,
-};
+/**
+ * Function definition to get a FIB node from its index
+ */
+static fib_node_t *
+sixrd_fib_node_get (fib_node_index_t index)
+{
+ sixrd_adj_delegate_t *sixrd_ad;
-VLIB_CLI_COMMAND(sixrd_del_command, static) = {
- .path = "sixrd del domain",
- .short_help =
- "sixrd del domain index <domain>",
- .function = sixrd_del_domain_command_fn,
-};
+ sixrd_ad = pool_elt_at_index (sixrd_adj_delegate_pool, index);
-VLIB_CLI_COMMAND(show_sixrd_domain_command, static) = {
- .path = "show sixrd domain",
- .function = show_sixrd_domain_command_fn,
-};
+ return (&sixrd_ad->sixrd_node);
+}
-VLIB_CLI_COMMAND(show_sixrd_stats_command, static) = {
- .path = "show sixrd stats",
- .function = show_sixrd_stats_command_fn,
+/**
+ * VFT registered with the adjacency delegate
+ */
+const static adj_delegate_vft_t sixrd_adj_delegate_vft = {
+ .adv_adj_deleted = sixrd_adj_delegate_adj_deleted,
+ .adv_format = sixrd_adj_delegate_format,
};
-/* *INDENT-OFF* */
-VLIB_PLUGIN_REGISTER () ={
- .version = VPP_BUILD_VER,
- .description = "IPv6 Rapid Deployment on IPv4 Infrastructure (RFC5969)",
+/**
+ * VFT registered with the FIB node for the adj delegate
+ */
+const static fib_node_vft_t sixrd_fib_node_vft = {
+ .fnv_get = sixrd_fib_node_get,
+ .fnv_last_lock = sixrd_fib_node_last_lock_gone,
+ .fnv_back_walk = sixrd_fib_node_back_walk_notify,
};
-/* *INDENT-ON* */
-static clib_error_t * sixrd_init (vlib_main_t * vm)
+static clib_error_t *
+sixrd_init (vlib_main_t * vm)
{
- sixrd_main_t *mm = &sixrd_main;
+ sixrd_main_t *sm = &sixrd_main;
+ clib_error_t *error = 0;
+ u8 *name;
+
+ name = format (0, "sixrd_%08x%c", api_version, 0);
+
+ sm->msg_id_base =
+ vl_msg_api_get_msg_ids ((char *) name, VL_MSG_FIRST_AVAILABLE);
+ vec_free (name);
+ error = sixrd_plugin_api_hookup (vm);
- mm->vnet_main = vnet_get_main();
- mm->vlib_main = vm;
+ setup_message_id_table (sm, &api_main);
- sixrd_dpo_module_init ();
+ sixrd_adj_delegate_type =
+ adj_delegate_register_new_type (&sixrd_adj_delegate_vft);
+ sixrd_fib_node_type = fib_node_register_new_type (&sixrd_fib_node_vft);
- return (NULL);
+ return error;
}
VLIB_INIT_FUNCTION (sixrd_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff