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authorOle Troan <ot@cisco.com>2018-06-22 11:32:12 +0200
committerFlorin Coras <florin.coras@gmail.com>2018-06-25 20:19:40 +0000
commit381e9a90748bb659f56081123052e3e95501a4b4 (patch)
treefbc166ecf8637b8b9ea262f3ac4181396149d534 /src/plugins/map/map.c
parente4d5a652a392c9f74501da5778a7fe161b183476 (diff)
MAP: Move MAP-E/T to a plugin.
Only remaining traces of MAP in the src/vnet is now in buffer.h. Awaiting a new buffer opaque API (hint, hint). Change-Id: Ie165561484731f1d7ed6e0f604b43624e06db3f0 Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/plugins/map/map.c')
-rw-r--r--src/plugins/map/map.c2373
1 files changed, 2373 insertions, 0 deletions
diff --git a/src/plugins/map/map.c b/src/plugins/map/map.c
new file mode 100644
index 00000000000..6d9730f3b06
--- /dev/null
+++ b/src/plugins/map/map.c
@@ -0,0 +1,2373 @@
+/*
+ * map.c : MAP support
+ *
+ * Copyright (c) 2015 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/fib/fib_table.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/adj/adj.h>
+#include <map/map_dpo.h>
+#include <vppinfra/crc32.h>
+#include <vnet/plugin/plugin.h>
+#include <vpp/app/version.h>
+#include "map.h"
+
+map_main_t map_main;
+
+/*
+ * This code supports the following MAP modes:
+ *
+ * Algorithmic Shared IPv4 address (ea_bits_len > 0):
+ * ea_bits_len + ip4_prefix > 32
+ * psid_length > 0, ip6_prefix < 64, ip4_prefix <= 32
+ * Algorithmic Full IPv4 address (ea_bits_len > 0):
+ * ea_bits_len + ip4_prefix = 32
+ * psid_length = 0, ip6_prefix < 64, ip4_prefix <= 32
+ * Algorithmic IPv4 prefix (ea_bits_len > 0):
+ * ea_bits_len + ip4_prefix < 32
+ * psid_length = 0, ip6_prefix < 64, ip4_prefix <= 32
+ *
+ * Independent Shared IPv4 address (ea_bits_len = 0):
+ * ip4_prefix = 32
+ * psid_length > 0
+ * Rule IPv6 address = 128, Rule PSID Set
+ * Independent Full IPv4 address (ea_bits_len = 0):
+ * ip4_prefix = 32
+ * psid_length = 0, ip6_prefix = 128
+ * Independent IPv4 prefix (ea_bits_len = 0):
+ * ip4_prefix < 32
+ * psid_length = 0, ip6_prefix = 128
+ *
+ */
+
+/*
+ * This code supports MAP-T:
+ *
+ * With DMR prefix length equal to 96.
+ *
+ */
+
+
+
+int
+map_create_domain (ip4_address_t * ip4_prefix,
+ u8 ip4_prefix_len,
+ ip6_address_t * ip6_prefix,
+ u8 ip6_prefix_len,
+ ip6_address_t * ip6_src,
+ u8 ip6_src_len,
+ u8 ea_bits_len,
+ u8 psid_offset,
+ u8 psid_length, u32 * map_domain_index, u16 mtu, u8 flags)
+{
+ u8 suffix_len, suffix_shift;
+ map_main_t *mm = &map_main;
+ dpo_id_t dpo_v4 = DPO_INVALID;
+ dpo_id_t dpo_v6 = DPO_INVALID;
+ map_domain_t *d;
+
+ /* Sanity check on the src prefix length */
+ if (flags & MAP_DOMAIN_TRANSLATION)
+ {
+ if (ip6_src_len != 96)
+ {
+ clib_warning ("MAP-T only supports ip6_src_len = 96 for now.");
+ return -1;
+ }
+ if ((flags & MAP_DOMAIN_RFC6052) && ip6_prefix_len != 96)
+ {
+ clib_warning ("RFC6052 translation only supports ip6_prefix_len = "
+ "96 for now");
+ return -1;
+ }
+ }
+ else
+ {
+ if (ip6_src_len != 128)
+ {
+ clib_warning
+ ("MAP-E requires a BR address, not a prefix (ip6_src_len should "
+ "be 128).");
+ return -1;
+ }
+ }
+
+ /* How many, and which bits to grab from the IPv4 DA */
+ if (ip4_prefix_len + ea_bits_len < 32)
+ {
+ if (!(flags & MAP_DOMAIN_TRANSLATION))
+ flags |= MAP_DOMAIN_PREFIX;
+ suffix_shift = 32 - ip4_prefix_len - ea_bits_len;
+ suffix_len = ea_bits_len;
+ }
+ else
+ {
+ suffix_shift = 0;
+ suffix_len = 32 - ip4_prefix_len;
+ }
+
+ /* EA bits must be within the first 64 bits */
+ if (ea_bits_len > 0 && ((ip6_prefix_len + ea_bits_len) > 64 ||
+ ip6_prefix_len + suffix_len + psid_length > 64))
+ {
+ clib_warning
+ ("Embedded Address bits must be within the first 64 bits of "
+ "the IPv6 prefix");
+ return -1;
+ }
+
+ if (mm->is_ce && !(flags & MAP_DOMAIN_TRANSLATION))
+ {
+ clib_warning ("MAP-E CE is not supported yet");
+ return -1;
+ }
+
+ /* Get domain index */
+ pool_get_aligned (mm->domains, d, CLIB_CACHE_LINE_BYTES);
+ memset (d, 0, sizeof (*d));
+ *map_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->ip6_src = *ip6_src;
+ d->ip6_src_len = ip6_src_len;
+ d->ea_bits_len = ea_bits_len;
+ d->psid_offset = psid_offset;
+ d->psid_length = psid_length;
+ d->mtu = mtu;
+ d->flags = flags;
+ d->suffix_shift = suffix_shift;
+ d->suffix_mask = (1 << suffix_len) - 1;
+
+ d->psid_shift = 16 - psid_length - psid_offset;
+ d->psid_mask = (1 << d->psid_length) - 1;
+ d->ea_shift = 64 - ip6_prefix_len - suffix_len - d->psid_length;
+
+ /* MAP data-plane object */
+ if (d->flags & MAP_DOMAIN_TRANSLATION)
+ map_t_dpo_create (DPO_PROTO_IP4, *map_domain_index, &dpo_v4);
+ else
+ map_dpo_create (DPO_PROTO_IP4, *map_domain_index, &dpo_v4);
+
+ /* Create ip4 route */
+ u8 ip4_pfx_len;
+ ip4_address_t ip4_pfx;
+ if (mm->is_ce)
+ {
+ ip4_pfx_len = 0;
+ ip4_pfx.as_u32 = 0;
+ }
+ else
+ {
+ ip4_pfx_len = d->ip4_prefix_len;
+ ip4_pfx = d->ip4_prefix;
+ }
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = ip4_pfx_len,
+ .fp_addr = {
+ .ip4 = ip4_pfx,
+ }
+ ,
+ };
+ fib_table_entry_special_dpo_add (0, &pfx,
+ FIB_SOURCE_MAP,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v4);
+ dpo_reset (&dpo_v4);
+
+ /*
+ * construct a DPO to use the v6 domain
+ */
+ if (d->flags & MAP_DOMAIN_TRANSLATION)
+ map_t_dpo_create (DPO_PROTO_IP6, *map_domain_index, &dpo_v6);
+ else
+ map_dpo_create (DPO_PROTO_IP6, *map_domain_index, &dpo_v6);
+
+ /*
+ * Multiple MAP domains may share same source IPv6 TEP. Which is just dandy.
+ * We are not tracking the sharing. So a v4 lookup to find the correct
+ * domain post decap/trnaslate is always done
+ *
+ * Create ip6 route. This is a reference counted add. If the prefix
+ * already exists and is MAP sourced, it is now MAP source n+1 times
+ * and will need to be removed n+1 times.
+ */
+ u8 ip6_pfx_len;
+ ip6_address_t ip6_pfx;
+ if (mm->is_ce)
+ {
+ ip6_pfx_len = d->ip6_prefix_len;
+ ip6_pfx = d->ip6_prefix;
+ }
+ else
+ {
+ ip6_pfx_len = d->ip6_src_len;
+ ip6_pfx = d->ip6_src;
+ }
+ fib_prefix_t pfx6 = {
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_len = ip6_pfx_len,
+ .fp_addr.ip6 = ip6_pfx,
+ };
+
+ fib_table_entry_special_dpo_add (0, &pfx6,
+ FIB_SOURCE_MAP,
+ FIB_ENTRY_FLAG_EXCLUSIVE, &dpo_v6);
+ dpo_reset (&dpo_v6);
+
+ /* Validate packet/byte counters */
+ map_domain_counter_lock (mm);
+ int i;
+ for (i = 0; i < vec_len (mm->simple_domain_counters); i++)
+ {
+ vlib_validate_simple_counter (&mm->simple_domain_counters[i],
+ *map_domain_index);
+ vlib_zero_simple_counter (&mm->simple_domain_counters[i],
+ *map_domain_index);
+ }
+ for (i = 0; i < vec_len (mm->domain_counters); i++)
+ {
+ vlib_validate_combined_counter (&mm->domain_counters[i],
+ *map_domain_index);
+ vlib_zero_combined_counter (&mm->domain_counters[i], *map_domain_index);
+ }
+ map_domain_counter_unlock (mm);
+
+ return 0;
+}
+
+/*
+ * map_delete_domain
+ */
+int
+map_delete_domain (u32 map_domain_index)
+{
+ map_main_t *mm = &map_main;
+ map_domain_t *d;
+
+ if (pool_is_free_index (mm->domains, map_domain_index))
+ {
+ clib_warning ("MAP domain delete: domain does not exist: %d",
+ map_domain_index);
+ return -1;
+ }
+
+ d = pool_elt_at_index (mm->domains, map_domain_index);
+
+ fib_prefix_t pfx = {
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_len = d->ip4_prefix_len,
+ .fp_addr = {
+ .ip4 = d->ip4_prefix,
+ }
+ ,
+ };
+ fib_table_entry_special_remove (0, &pfx, FIB_SOURCE_MAP);
+
+ fib_prefix_t pfx6 = {
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_len = d->ip6_src_len,
+ .fp_addr = {
+ .ip6 = d->ip6_src,
+ }
+ ,
+ };
+ fib_table_entry_special_remove (0, &pfx6, FIB_SOURCE_MAP);
+
+ /* Deleting rules */
+ if (d->rules)
+ clib_mem_free (d->rules);
+
+ pool_put (mm->domains, d);
+
+ return 0;
+}
+
+int
+map_add_del_psid (u32 map_domain_index, u16 psid, ip6_address_t * tep,
+ u8 is_add)
+{
+ map_domain_t *d;
+ map_main_t *mm = &map_main;
+
+ if (pool_is_free_index (mm->domains, map_domain_index))
+ {
+ clib_warning ("MAP rule: domain does not exist: %d", map_domain_index);
+ return -1;
+ }
+ d = pool_elt_at_index (mm->domains, map_domain_index);
+
+ /* Rules are only used in 1:1 independent case */
+ if (d->ea_bits_len > 0)
+ return (-1);
+
+ if (!d->rules)
+ {
+ u32 l = (0x1 << d->psid_length) * sizeof (ip6_address_t);
+ d->rules = clib_mem_alloc_aligned (l, CLIB_CACHE_LINE_BYTES);
+ if (!d->rules)
+ return -1;
+ memset (d->rules, 0, l);
+ }
+
+ if (psid >= (0x1 << d->psid_length))
+ {
+ clib_warning ("MAP rule: PSID outside bounds: %d [%d]", psid,
+ 0x1 << d->psid_length);
+ return -1;
+ }
+
+ if (is_add)
+ {
+ d->rules[psid] = *tep;
+ }
+ else
+ {
+ memset (&d->rules[psid], 0, sizeof (ip6_address_t));
+ }
+ return 0;
+}
+
+#ifdef MAP_SKIP_IP6_LOOKUP
+/**
+ * Pre-resolvd per-protocol global next-hops
+ */
+map_main_pre_resolved_t pre_resolved[FIB_PROTOCOL_MAX];
+
+static void
+map_pre_resolve_init (map_main_pre_resolved_t * pr)
+{
+ pr->fei = FIB_NODE_INDEX_INVALID;
+ fib_node_init (&pr->node, FIB_NODE_TYPE_MAP_E);
+}
+
+static u8 *
+format_map_pre_resolve (u8 * s, va_list * ap)
+{
+ map_main_pre_resolved_t *pr = va_arg (*ap, map_main_pre_resolved_t *);
+
+ if (FIB_NODE_INDEX_INVALID != pr->fei)
+ {
+ fib_prefix_t pfx;
+
+ fib_entry_get_prefix (pr->fei, &pfx);
+
+ return (format (s, "%U (%u)",
+ format_ip46_address, &pfx.fp_addr, IP46_TYPE_ANY,
+ pr->dpo.dpoi_index));
+ }
+ else
+ {
+ return (format (s, "un-set"));
+ }
+}
+
+
+/**
+ * Function definition to inform the FIB node that its last lock has gone.
+ */
+static void
+map_last_lock_gone (fib_node_t * node)
+{
+ /*
+ * The MAP is a root of the graph. As such
+ * it never has children and thus is never locked.
+ */
+ ASSERT (0);
+}
+
+static map_main_pre_resolved_t *
+map_from_fib_node (fib_node_t * node)
+{
+ ASSERT (FIB_NODE_TYPE_MAP_E == node->fn_type);
+ return ((map_main_pre_resolved_t *)
+ (((char *) node) -
+ STRUCT_OFFSET_OF (map_main_pre_resolved_t, node)));
+}
+
+static void
+map_stack (map_main_pre_resolved_t * pr)
+{
+ const dpo_id_t *dpo;
+
+ dpo = fib_entry_contribute_ip_forwarding (pr->fei);
+
+ dpo_copy (&pr->dpo, dpo);
+}
+
+/**
+ * Function definition to backwalk a FIB node
+ */
+static fib_node_back_walk_rc_t
+map_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx)
+{
+ map_stack (map_from_fib_node (node));
+
+ return (FIB_NODE_BACK_WALK_CONTINUE);
+}
+
+/**
+ * Function definition to get a FIB node from its index
+ */
+static fib_node_t *
+map_fib_node_get (fib_node_index_t index)
+{
+ return (&pre_resolved[index].node);
+}
+
+/*
+ * Virtual function table registered by MPLS GRE tunnels
+ * for participation in the FIB object graph.
+ */
+const static fib_node_vft_t map_vft = {
+ .fnv_get = map_fib_node_get,
+ .fnv_last_lock = map_last_lock_gone,
+ .fnv_back_walk = map_back_walk,
+};
+
+static void
+map_fib_resolve (map_main_pre_resolved_t * pr,
+ fib_protocol_t proto, u8 len, const ip46_address_t * addr)
+{
+ fib_prefix_t pfx = {
+ .fp_proto = proto,
+ .fp_len = len,
+ .fp_addr = *addr,
+ };
+
+ pr->fei = fib_table_entry_special_add (0, // default fib
+ &pfx,
+ FIB_SOURCE_RR, FIB_ENTRY_FLAG_NONE);
+ pr->sibling = fib_entry_child_add (pr->fei, FIB_NODE_TYPE_MAP_E, proto);
+ map_stack (pr);
+}
+
+static void
+map_fib_unresolve (map_main_pre_resolved_t * pr,
+ fib_protocol_t proto, u8 len, const ip46_address_t * addr)
+{
+ fib_prefix_t pfx = {
+ .fp_proto = proto,
+ .fp_len = len,
+ .fp_addr = *addr,
+ };
+
+ fib_entry_child_remove (pr->fei, pr->sibling);
+
+ fib_table_entry_special_remove (0, // default fib
+ &pfx, FIB_SOURCE_RR);
+ dpo_reset (&pr->dpo);
+
+ pr->fei = FIB_NODE_INDEX_INVALID;
+ pr->sibling = FIB_NODE_INDEX_INVALID;
+}
+
+static void
+map_pre_resolve (ip4_address_t * ip4, ip6_address_t * ip6, int is_del)
+{
+ if (ip6 && (ip6->as_u64[0] != 0 || ip6->as_u64[1] != 0))
+ {
+ ip46_address_t addr = {
+ .ip6 = *ip6,
+ };
+ if (is_del)
+ map_fib_unresolve (&pre_resolved[FIB_PROTOCOL_IP6],
+ FIB_PROTOCOL_IP6, 128, &addr);
+ else
+ map_fib_resolve (&pre_resolved[FIB_PROTOCOL_IP6],
+ FIB_PROTOCOL_IP6, 128, &addr);
+ }
+ if (ip4 && (ip4->as_u32 != 0))
+ {
+ ip46_address_t addr = {
+ .ip4 = *ip4,
+ };
+ if (is_del)
+ map_fib_unresolve (&pre_resolved[FIB_PROTOCOL_IP4],
+ FIB_PROTOCOL_IP4, 32, &addr);
+ else
+ map_fib_resolve (&pre_resolved[FIB_PROTOCOL_IP4],
+ FIB_PROTOCOL_IP4, 32, &addr);
+ }
+}
+#endif
+
+static clib_error_t *
+map_security_check_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ clib_error_t *error = NULL;
+
+ /* 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, "off"))
+ mm->sec_check = false;
+ else if (unformat (line_input, "on"))
+ mm->sec_check = true;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_security_check_frag_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ clib_error_t *error = NULL;
+
+ /* 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, "off"))
+ mm->sec_check_frag = false;
+ else if (unformat (line_input, "on"))
+ mm->sec_check_frag = true;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_add_domain_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;
+ ip6_address_t ip6_src;
+ u32 ip6_prefix_len = 0, ip4_prefix_len = 0, map_domain_index, ip6_src_len;
+ u32 num_m_args = 0;
+ /* Optional arguments */
+ u32 ea_bits_len = 0, psid_offset = 0, psid_length = 0;
+ u32 mtu = 0;
+ u8 flags = 0;
+ ip6_src_len = 128;
+ clib_error_t *error = NULL;
+
+ /* 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, "ip4-pfx %U/%d", unformat_ip4_address, &ip4_prefix,
+ &ip4_prefix_len))
+ num_m_args++;
+ 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, "ip6-src %U/%d", unformat_ip6_address, &ip6_src,
+ &ip6_src_len))
+ num_m_args++;
+ else
+ if (unformat
+ (line_input, "ip6-src %U", unformat_ip6_address, &ip6_src))
+ num_m_args++;
+ else if (unformat (line_input, "ea-bits-len %d", &ea_bits_len))
+ num_m_args++;
+ else if (unformat (line_input, "psid-offset %d", &psid_offset))
+ num_m_args++;
+ else if (unformat (line_input, "psid-len %d", &psid_length))
+ num_m_args++;
+ else if (unformat (line_input, "mtu %d", &mtu))
+ num_m_args++;
+ else if (unformat (line_input, "map-t"))
+ flags |= MAP_DOMAIN_TRANSLATION;
+ else if (unformat (line_input, "rfc6052"))
+ flags |= (MAP_DOMAIN_TRANSLATION | MAP_DOMAIN_RFC6052);
+ 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;
+ }
+
+ map_create_domain (&ip4_prefix, ip4_prefix_len,
+ &ip6_prefix, ip6_prefix_len, &ip6_src, ip6_src_len,
+ ea_bits_len, psid_offset, psid_length, &map_domain_index,
+ mtu, flags);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_del_domain_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 num_m_args = 0;
+ u32 map_domain_index;
+ clib_error_t *error = NULL;
+
+ /* 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", &map_domain_index))
+ num_m_args++;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (num_m_args != 1)
+ {
+ error = clib_error_return (0, "mandatory argument(s) missing");
+ goto done;
+ }
+
+ map_delete_domain (map_domain_index);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_add_rule_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ ip6_address_t tep;
+ u32 num_m_args = 0;
+ u32 psid = 0, map_domain_index;
+ clib_error_t *error = NULL;
+
+ /* 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", &map_domain_index))
+ num_m_args++;
+ else if (unformat (line_input, "psid %d", &psid))
+ num_m_args++;
+ else
+ if (unformat (line_input, "ip6-dst %U", unformat_ip6_address, &tep))
+ num_m_args++;
+ 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;
+ }
+
+ if (map_add_del_psid (map_domain_index, psid, &tep, 1) != 0)
+ {
+ error = clib_error_return (0, "Failing to add Mapping Rule");
+ goto done;
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+#if MAP_SKIP_IP6_LOOKUP
+static clib_error_t *
+map_pre_resolve_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 ip4nh, *p_v4 = NULL;
+ ip6_address_t ip6nh, *p_v6 = NULL;
+ clib_error_t *error = NULL;
+ int is_del = 0;
+
+ memset (&ip4nh, 0, sizeof (ip4nh));
+ memset (&ip6nh, 0, sizeof (ip6nh));
+
+ /* 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, "ip4-nh %U", unformat_ip4_address, &ip4nh))
+ p_v4 = &ip4nh;
+ else
+ if (unformat (line_input, "ip6-nh %U", unformat_ip6_address, &ip6nh))
+ p_v6 = &ip6nh;
+ else if (unformat (line_input, "del"))
+ is_del = 1;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ map_pre_resolve (p_v4, p_v6, is_del);
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+#endif
+
+static clib_error_t *
+map_icmp_relay_source_address_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 icmp_src_address;
+ map_main_t *mm = &map_main;
+ clib_error_t *error = NULL;
+
+ mm->icmp4_src_address.as_u32 = 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, "%U", unformat_ip4_address, &icmp_src_address))
+ mm->icmp4_src_address = icmp_src_address;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_icmp_unreachables_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ int num_m_args = 0;
+ clib_error_t *error = NULL;
+
+ /* 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)
+ {
+ num_m_args++;
+ if (unformat (line_input, "on"))
+ mm->icmp6_enabled = true;
+ else if (unformat (line_input, "off"))
+ mm->icmp6_enabled = false;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+
+ if (num_m_args != 1)
+ error = clib_error_return (0, "mandatory argument(s) missing");
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_fragment_command_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ clib_error_t *error = NULL;
+
+ /* 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, "inner"))
+ mm->frag_inner = true;
+ else if (unformat (line_input, "outer"))
+ mm->frag_inner = false;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_fragment_df_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ clib_error_t *error = NULL;
+
+ /* 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, "on"))
+ mm->frag_ignore_df = true;
+ else if (unformat (line_input, "off"))
+ mm->frag_ignore_df = false;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+map_traffic_class_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ u32 tc = 0;
+ clib_error_t *error = NULL;
+
+ mm->tc_copy = false;
+
+ /* 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, "copy"))
+ mm->tc_copy = true;
+ else if (unformat (line_input, "%x", &tc))
+ mm->tc = tc & 0xff;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static char *
+map_flags_to_string (u32 flags)
+{
+ if (flags & MAP_DOMAIN_RFC6052)
+ return "rfc6052";
+ if (flags & MAP_DOMAIN_PREFIX)
+ return "prefix";
+ if (flags & MAP_DOMAIN_TRANSLATION)
+ return "map-t";
+ return "";
+}
+
+static u8 *
+format_map_domain (u8 * s, va_list * args)
+{
+ map_domain_t *d = va_arg (*args, map_domain_t *);
+ bool counters = va_arg (*args, int);
+ map_main_t *mm = &map_main;
+ ip6_address_t ip6_prefix;
+
+ if (d->rules)
+ memset (&ip6_prefix, 0, sizeof (ip6_prefix));
+ else
+ ip6_prefix = d->ip6_prefix;
+
+ s = format (s,
+ "[%d] ip4-pfx %U/%d ip6-pfx %U/%d ip6-src %U/%d ea_bits_len %d "
+ "psid-offset %d psid-len %d mtu %d %s",
+ d - mm->domains,
+ format_ip4_address, &d->ip4_prefix, d->ip4_prefix_len,
+ format_ip6_address, &ip6_prefix, d->ip6_prefix_len,
+ format_ip6_address, &d->ip6_src, d->ip6_src_len,
+ d->ea_bits_len, d->psid_offset, d->psid_length, d->mtu,
+ map_flags_to_string (d->flags));
+
+ if (counters)
+ {
+ map_domain_counter_lock (mm);
+ vlib_counter_t v;
+ vlib_get_combined_counter (&mm->domain_counters[MAP_DOMAIN_COUNTER_TX],
+ d - mm->domains, &v);
+ s = format (s, " TX: %lld/%lld", v.packets, v.bytes);
+ vlib_get_combined_counter (&mm->domain_counters[MAP_DOMAIN_COUNTER_RX],
+ d - mm->domains, &v);
+ s = format (s, " RX: %lld/%lld", v.packets, v.bytes);
+ map_domain_counter_unlock (mm);
+ }
+ s = format (s, "\n");
+
+ if (d->rules)
+ {
+ int i;
+ ip6_address_t dst;
+ for (i = 0; i < (0x1 << d->psid_length); i++)
+ {
+ dst = d->rules[i];
+ if (dst.as_u64[0] == 0 && dst.as_u64[1] == 0)
+ continue;
+ s = format (s,
+ " rule psid: %d ip6-dst %U\n", i, format_ip6_address,
+ &dst);
+ }
+ }
+ return s;
+}
+
+static u8 *
+format_map_ip4_reass (u8 * s, va_list * args)
+{
+ map_main_t *mm = &map_main;
+ map_ip4_reass_t *r = va_arg (*args, map_ip4_reass_t *);
+ map_ip4_reass_key_t *k = &r->key;
+ f64 now = vlib_time_now (mm->vlib_main);
+ f64 lifetime = (((f64) mm->ip4_reass_conf_lifetime_ms) / 1000);
+ f64 dt = (r->ts + lifetime > now) ? (r->ts + lifetime - now) : -1;
+ s = format (s,
+ "ip4-reass src=%U dst=%U protocol=%d identifier=%d port=%d lifetime=%.3lf\n",
+ format_ip4_address, &k->src.as_u8, format_ip4_address,
+ &k->dst.as_u8, k->protocol,
+ clib_net_to_host_u16 (k->fragment_id),
+ (r->port >= 0) ? clib_net_to_host_u16 (r->port) : -1, dt);
+ return s;
+}
+
+static u8 *
+format_map_ip6_reass (u8 * s, va_list * args)
+{
+ map_main_t *mm = &map_main;
+ map_ip6_reass_t *r = va_arg (*args, map_ip6_reass_t *);
+ map_ip6_reass_key_t *k = &r->key;
+ f64 now = vlib_time_now (mm->vlib_main);
+ f64 lifetime = (((f64) mm->ip6_reass_conf_lifetime_ms) / 1000);
+ f64 dt = (r->ts + lifetime > now) ? (r->ts + lifetime - now) : -1;
+ s = format (s,
+ "ip6-reass src=%U dst=%U protocol=%d identifier=%d lifetime=%.3lf\n",
+ format_ip6_address, &k->src.as_u8, format_ip6_address,
+ &k->dst.as_u8, k->protocol,
+ clib_net_to_host_u32 (k->fragment_id), dt);
+ return s;
+}
+
+static clib_error_t *
+show_map_domain_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ map_main_t *mm = &map_main;
+ map_domain_t *d;
+ bool counters = false;
+ u32 map_domain_index = ~0;
+ clib_error_t *error = NULL;
+
+ /* 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, "counters"))
+ counters = true;
+ else if (unformat (line_input, "index %d", &map_domain_index))
+ ;
+ else
+ {
+ error = clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, line_input);
+ goto done;
+ }
+ }
+
+ if (pool_elts (mm->domains) == 0)
+ vlib_cli_output (vm, "No MAP domains are configured...");
+
+ if (map_domain_index == ~0)
+ {
+ /* *INDENT-OFF* */
+ pool_foreach(d, mm->domains, ({vlib_cli_output(vm, "%U", format_map_domain, d, counters);}));
+ /* *INDENT-ON* */
+ }
+ else
+ {
+ if (pool_is_free_index (mm->domains, map_domain_index))
+ {
+ error = clib_error_return (0, "MAP domain does not exists %d",
+ map_domain_index);
+ goto done;
+ }
+
+ d = pool_elt_at_index (mm->domains, map_domain_index);
+ vlib_cli_output (vm, "%U", format_map_domain, d, counters);
+ }
+
+done:
+ unformat_free (line_input);
+
+ return error;
+}
+
+static clib_error_t *
+show_map_fragments_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ map_main_t *mm = &map_main;
+ map_ip4_reass_t *f4;
+ map_ip6_reass_t *f6;
+
+ /* *INDENT-OFF* */
+ pool_foreach(f4, mm->ip4_reass_pool, ({vlib_cli_output (vm, "%U", format_map_ip4_reass, f4);}));
+ /* *INDENT-ON* */
+ /* *INDENT-OFF* */
+ pool_foreach(f6, mm->ip6_reass_pool, ({vlib_cli_output (vm, "%U", format_map_ip6_reass, f6);}));
+ /* *INDENT-ON* */
+ return (0);
+}
+
+u64
+map_error_counter_get (u32 node_index, map_error_t map_error)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ vlib_node_runtime_t *error_node = vlib_node_get_runtime (vm, node_index);
+ vlib_error_main_t *em = &vm->error_main;
+ vlib_error_t e = error_node->errors[map_error];
+ vlib_node_t *n = vlib_get_node (vm, node_index);
+ u32 ci;
+
+ ci = vlib_error_get_code (e);
+ ASSERT (ci < n->n_errors);
+ ci += n->error_heap_index;
+
+ return (em->counters[ci]);
+}
+
+static clib_error_t *
+show_map_stats_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ map_main_t *mm = &map_main;
+ map_domain_t *d;
+ int domains = 0, rules = 0, domaincount = 0, rulecount = 0;
+ if (pool_elts (mm->domains) == 0)
+ {
+ vlib_cli_output (vm, "No MAP domains are configured...");
+ return 0;
+ }
+
+ /* *INDENT-OFF* */
+ pool_foreach(d, mm->domains, ({
+ if (d->rules) {
+ rulecount+= 0x1 << d->psid_length;
+ rules += sizeof(ip6_address_t) * 0x1 << d->psid_length;
+ }
+ domains += sizeof(*d);
+ domaincount++;
+ }));
+ /* *INDENT-ON* */
+
+ vlib_cli_output (vm, "MAP domains structure: %d\n", sizeof (map_domain_t));
+ vlib_cli_output (vm, "MAP domains: %d (%d bytes)\n", domaincount, domains);
+ vlib_cli_output (vm, "MAP rules: %d (%d bytes)\n", rulecount, rules);
+ vlib_cli_output (vm, "Total: %d bytes)\n", rules + domains);
+
+#if MAP_SKIP_IP6_LOOKUP
+ vlib_cli_output (vm,
+ "MAP pre-resolve: IP6 next-hop: %U, IP4 next-hop: %U\n",
+ format_map_pre_resolve, &pre_resolved[FIB_PROTOCOL_IP6],
+ format_map_pre_resolve, &pre_resolved[FIB_PROTOCOL_IP4]);
+
+#endif
+
+ if (mm->tc_copy)
+ vlib_cli_output (vm, "MAP traffic-class: copy");
+ else
+ vlib_cli_output (vm, "MAP traffic-class: %x", mm->tc);
+
+ vlib_cli_output (vm,
+ "MAP IPv6 inbound security check: %s, fragmented packet security check: %s",
+ mm->sec_check ? "enabled" : "disabled",
+ mm->sec_check_frag ? "enabled" : "disabled");
+
+ vlib_cli_output (vm, "ICMP-relay IPv4 source address: %U\n",
+ format_ip4_address, &mm->icmp4_src_address);
+ vlib_cli_output (vm, "ICMP6 unreachables sent for unmatched packets: %s\n",
+ mm->icmp6_enabled ? "enabled" : "disabled");
+ vlib_cli_output (vm, "Inner fragmentation: %s\n",
+ mm->frag_inner ? "enabled" : "disabled");
+ vlib_cli_output (vm, "Fragment packets regardless of DF flag: %s\n",
+ mm->frag_ignore_df ? "enabled" : "disabled");
+
+ /*
+ * Counters
+ */
+ vlib_combined_counter_main_t *cm = mm->domain_counters;
+ u64 total_pkts[MAP_N_DOMAIN_COUNTER];
+ u64 total_bytes[MAP_N_DOMAIN_COUNTER];
+ int which, i;
+ vlib_counter_t v;
+
+ memset (total_pkts, 0, sizeof (total_pkts));
+ memset (total_bytes, 0, sizeof (total_bytes));
+
+ map_domain_counter_lock (mm);
+ vec_foreach (cm, mm->domain_counters)
+ {
+ which = cm - mm->domain_counters;
+
+ for (i = 0; i < vlib_combined_counter_n_counters (cm); i++)
+ {
+ vlib_get_combined_counter (cm, i, &v);
+ total_pkts[which] += v.packets;
+ total_bytes[which] += v.bytes;
+ }
+ }
+ map_domain_counter_unlock (mm);
+
+ vlib_cli_output (vm, "Encapsulated packets: %lld bytes: %lld\n",
+ total_pkts[MAP_DOMAIN_COUNTER_TX],
+ total_bytes[MAP_DOMAIN_COUNTER_TX]);
+ vlib_cli_output (vm, "Decapsulated packets: %lld bytes: %lld\n",
+ total_pkts[MAP_DOMAIN_COUNTER_RX],
+ total_bytes[MAP_DOMAIN_COUNTER_RX]);
+
+ vlib_cli_output (vm, "ICMP relayed packets: %d\n",
+ vlib_get_simple_counter (&mm->icmp_relayed, 0));
+
+ return 0;
+}
+
+static clib_error_t *
+map_params_reass_command_fn (vlib_main_t * vm, unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ unformat_input_t _line_input, *line_input = &_line_input;
+ u32 lifetime = ~0;
+ f64 ht_ratio = (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1);
+ u32 pool_size = ~0;
+ u64 buffers = ~(0ull);
+ u8 ip4 = 0, ip6 = 0;
+
+ 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, "lifetime %u", &lifetime))
+ ;
+ else if (unformat (line_input, "ht-ratio %lf", &ht_ratio))
+ ;
+ else if (unformat (line_input, "pool-size %u", &pool_size))
+ ;
+ else if (unformat (line_input, "buffers %llu", &buffers))
+ ;
+ else if (unformat (line_input, "ip4"))
+ ip4 = 1;
+ else if (unformat (line_input, "ip6"))
+ ip6 = 1;
+ else
+ {
+ unformat_free (line_input);
+ return clib_error_return (0, "invalid input");
+ }
+ }
+ unformat_free (line_input);
+
+ if (!ip4 && !ip6)
+ return clib_error_return (0, "must specify ip4 and/or ip6");
+
+ if (ip4)
+ {
+ if (pool_size != ~0 && pool_size > MAP_IP4_REASS_CONF_POOL_SIZE_MAX)
+ return clib_error_return (0, "invalid ip4-reass pool-size ( > %d)",
+ MAP_IP4_REASS_CONF_POOL_SIZE_MAX);
+ if (ht_ratio != (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1)
+ && ht_ratio > MAP_IP4_REASS_CONF_HT_RATIO_MAX)
+ return clib_error_return (0, "invalid ip4-reass ht-ratio ( > %d)",
+ MAP_IP4_REASS_CONF_HT_RATIO_MAX);
+ if (lifetime != ~0 && lifetime > MAP_IP4_REASS_CONF_LIFETIME_MAX)
+ return clib_error_return (0, "invalid ip4-reass lifetime ( > %d)",
+ MAP_IP4_REASS_CONF_LIFETIME_MAX);
+ if (buffers != ~(0ull) && buffers > MAP_IP4_REASS_CONF_BUFFERS_MAX)
+ return clib_error_return (0, "invalid ip4-reass buffers ( > %ld)",
+ MAP_IP4_REASS_CONF_BUFFERS_MAX);
+ }
+
+ if (ip6)
+ {
+ if (pool_size != ~0 && pool_size > MAP_IP6_REASS_CONF_POOL_SIZE_MAX)
+ return clib_error_return (0, "invalid ip6-reass pool-size ( > %d)",
+ MAP_IP6_REASS_CONF_POOL_SIZE_MAX);
+ if (ht_ratio != (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1)
+ && ht_ratio > MAP_IP6_REASS_CONF_HT_RATIO_MAX)
+ return clib_error_return (0, "invalid ip6-reass ht-log2len ( > %d)",
+ MAP_IP6_REASS_CONF_HT_RATIO_MAX);
+ if (lifetime != ~0 && lifetime > MAP_IP6_REASS_CONF_LIFETIME_MAX)
+ return clib_error_return (0, "invalid ip6-reass lifetime ( > %d)",
+ MAP_IP6_REASS_CONF_LIFETIME_MAX);
+ if (buffers != ~(0ull) && buffers > MAP_IP6_REASS_CONF_BUFFERS_MAX)
+ return clib_error_return (0, "invalid ip6-reass buffers ( > %ld)",
+ MAP_IP6_REASS_CONF_BUFFERS_MAX);
+ }
+
+ if (ip4)
+ {
+ u32 reass = 0, packets = 0;
+ if (pool_size != ~0)
+ {
+ if (map_ip4_reass_conf_pool_size (pool_size, &reass, &packets))
+ {
+ vlib_cli_output (vm, "Could not set ip4-reass pool-size");
+ }
+ else
+ {
+ vlib_cli_output (vm,
+ "Setting ip4-reass pool-size (destroyed-reassembly=%u , dropped-fragments=%u)",
+ reass, packets);
+ }
+ }
+ if (ht_ratio != (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1))
+ {
+ if (map_ip4_reass_conf_ht_ratio (ht_ratio, &reass, &packets))
+ {
+ vlib_cli_output (vm, "Could not set ip4-reass ht-log2len");
+ }
+ else
+ {
+ vlib_cli_output (vm,
+ "Setting ip4-reass ht-log2len (destroyed-reassembly=%u , dropped-fragments=%u)",
+ reass, packets);
+ }
+ }
+ if (lifetime != ~0)
+ {
+ if (map_ip4_reass_conf_lifetime (lifetime))
+ vlib_cli_output (vm, "Could not set ip4-reass lifetime");
+ else
+ vlib_cli_output (vm, "Setting ip4-reass lifetime");
+ }
+ if (buffers != ~(0ull))
+ {
+ if (map_ip4_reass_conf_buffers (buffers))
+ vlib_cli_output (vm, "Could not set ip4-reass buffers");
+ else
+ vlib_cli_output (vm, "Setting ip4-reass buffers");
+ }
+
+ if (map_main.ip4_reass_conf_buffers >
+ map_main.ip4_reass_conf_pool_size *
+ MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY)
+ {
+ vlib_cli_output (vm,
+ "Note: 'ip4-reass buffers' > pool-size * max-fragments-per-reassembly.");
+ }
+ }
+
+ if (ip6)
+ {
+ u32 reass = 0, packets = 0;
+ if (pool_size != ~0)
+ {
+ if (map_ip6_reass_conf_pool_size (pool_size, &reass, &packets))
+ {
+ vlib_cli_output (vm, "Could not set ip6-reass pool-size");
+ }
+ else
+ {
+ vlib_cli_output (vm,
+ "Setting ip6-reass pool-size (destroyed-reassembly=%u , dropped-fragments=%u)",
+ reass, packets);
+ }
+ }
+ if (ht_ratio != (MAP_IP4_REASS_CONF_HT_RATIO_MAX + 1))
+ {
+ if (map_ip6_reass_conf_ht_ratio (ht_ratio, &reass, &packets))
+ {
+ vlib_cli_output (vm, "Could not set ip6-reass ht-log2len");
+ }
+ else
+ {
+ vlib_cli_output (vm,
+ "Setting ip6-reass ht-log2len (destroyed-reassembly=%u , dropped-fragments=%u)",
+ reass, packets);
+ }
+ }
+ if (lifetime != ~0)
+ {
+ if (map_ip6_reass_conf_lifetime (lifetime))
+ vlib_cli_output (vm, "Could not set ip6-reass lifetime");
+ else
+ vlib_cli_output (vm, "Setting ip6-reass lifetime");
+ }
+ if (buffers != ~(0ull))
+ {
+ if (map_ip6_reass_conf_buffers (buffers))
+ vlib_cli_output (vm, "Could not set ip6-reass buffers");
+ else
+ vlib_cli_output (vm, "Setting ip6-reass buffers");
+ }
+
+ if (map_main.ip6_reass_conf_buffers >
+ map_main.ip6_reass_conf_pool_size *
+ MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY)
+ {
+ vlib_cli_output (vm,
+ "Note: 'ip6-reass buffers' > pool-size * max-fragments-per-reassembly.");
+ }
+ }
+
+ return 0;
+}
+
+
+/*
+ * packet trace format function
+ */
+u8 *
+format_map_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ map_trace_t *t = va_arg (*args, map_trace_t *);
+ u32 map_domain_index = t->map_domain_index;
+ u16 port = t->port;
+
+ s =
+ format (s, "MAP domain index: %d L4 port: %u", map_domain_index,
+ clib_net_to_host_u16 (port));
+
+ return s;
+}
+
+static_always_inline map_ip4_reass_t *
+map_ip4_reass_lookup (map_ip4_reass_key_t * k, u32 bucket, f64 now)
+{
+ map_main_t *mm = &map_main;
+ u32 ri = mm->ip4_reass_hash_table[bucket];
+ while (ri != MAP_REASS_INDEX_NONE)
+ {
+ map_ip4_reass_t *r = pool_elt_at_index (mm->ip4_reass_pool, ri);
+ if (r->key.as_u64[0] == k->as_u64[0] &&
+ r->key.as_u64[1] == k->as_u64[1] &&
+ now < r->ts + (((f64) mm->ip4_reass_conf_lifetime_ms) / 1000))
+ {
+ return r;
+ }
+ ri = r->bucket_next;
+ }
+ return NULL;
+}
+
+#define map_ip4_reass_pool_index(r) (r - map_main.ip4_reass_pool)
+
+void
+map_ip4_reass_free (map_ip4_reass_t * r, u32 ** pi_to_drop)
+{
+ map_main_t *mm = &map_main;
+ map_ip4_reass_get_fragments (r, pi_to_drop);
+
+ // Unlink in hash bucket
+ map_ip4_reass_t *r2 = NULL;
+ u32 r2i = mm->ip4_reass_hash_table[r->bucket];
+ while (r2i != map_ip4_reass_pool_index (r))
+ {
+ ASSERT (r2i != MAP_REASS_INDEX_NONE);
+ r2 = pool_elt_at_index (mm->ip4_reass_pool, r2i);
+ r2i = r2->bucket_next;
+ }
+ if (r2)
+ {
+ r2->bucket_next = r->bucket_next;
+ }
+ else
+ {
+ mm->ip4_reass_hash_table[r->bucket] = r->bucket_next;
+ }
+
+ // Unlink in list
+ if (r->fifo_next == map_ip4_reass_pool_index (r))
+ {
+ mm->ip4_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ }
+ else
+ {
+ if (mm->ip4_reass_fifo_last == map_ip4_reass_pool_index (r))
+ mm->ip4_reass_fifo_last = r->fifo_prev;
+ pool_elt_at_index (mm->ip4_reass_pool, r->fifo_prev)->fifo_next =
+ r->fifo_next;
+ pool_elt_at_index (mm->ip4_reass_pool, r->fifo_next)->fifo_prev =
+ r->fifo_prev;
+ }
+
+ pool_put (mm->ip4_reass_pool, r);
+ mm->ip4_reass_allocated--;
+}
+
+map_ip4_reass_t *
+map_ip4_reass_get (u32 src, u32 dst, u16 fragment_id,
+ u8 protocol, u32 ** pi_to_drop)
+{
+ map_ip4_reass_t *r;
+ map_main_t *mm = &map_main;
+ map_ip4_reass_key_t k = {.src.data_u32 = src,
+ .dst.data_u32 = dst,
+ .fragment_id = fragment_id,
+ .protocol = protocol
+ };
+
+ u32 h = 0;
+#ifdef clib_crc32c_uses_intrinsics
+ h = clib_crc32c ((u8 *) k.as_u32, 16);
+#else
+ u64 tmp = k.as_u32[0] ^ k.as_u32[1] ^ k.as_u32[2] ^ k.as_u32[3];
+ h = clib_xxhash (tmp);
+#endif
+ h = h >> (32 - mm->ip4_reass_ht_log2len);
+
+ f64 now = vlib_time_now (mm->vlib_main);
+
+ //Cache garbage collection
+ while (mm->ip4_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ map_ip4_reass_t *last =
+ pool_elt_at_index (mm->ip4_reass_pool, mm->ip4_reass_fifo_last);
+ if (last->ts + (((f64) mm->ip4_reass_conf_lifetime_ms) / 1000) < now)
+ map_ip4_reass_free (last, pi_to_drop);
+ else
+ break;
+ }
+
+ if ((r = map_ip4_reass_lookup (&k, h, now)))
+ return r;
+
+ if (mm->ip4_reass_allocated >= mm->ip4_reass_conf_pool_size)
+ return NULL;
+
+ pool_get (mm->ip4_reass_pool, r);
+ mm->ip4_reass_allocated++;
+ int i;
+ for (i = 0; i < MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ r->fragments[i] = ~0;
+
+ u32 ri = map_ip4_reass_pool_index (r);
+
+ //Link in new bucket
+ r->bucket = h;
+ r->bucket_next = mm->ip4_reass_hash_table[h];
+ mm->ip4_reass_hash_table[h] = ri;
+
+ //Link in fifo
+ if (mm->ip4_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ r->fifo_next =
+ pool_elt_at_index (mm->ip4_reass_pool,
+ mm->ip4_reass_fifo_last)->fifo_next;
+ r->fifo_prev = mm->ip4_reass_fifo_last;
+ pool_elt_at_index (mm->ip4_reass_pool, r->fifo_prev)->fifo_next = ri;
+ pool_elt_at_index (mm->ip4_reass_pool, r->fifo_next)->fifo_prev = ri;
+ }
+ else
+ {
+ r->fifo_next = r->fifo_prev = ri;
+ mm->ip4_reass_fifo_last = ri;
+ }
+
+ //Set other fields
+ r->ts = now;
+ r->key = k;
+ r->port = -1;
+#ifdef MAP_IP4_REASS_COUNT_BYTES
+ r->expected_total = 0xffff;
+ r->forwarded = 0;
+#endif
+
+ return r;
+}
+
+int
+map_ip4_reass_add_fragment (map_ip4_reass_t * r, u32 pi)
+{
+ if (map_main.ip4_reass_buffered_counter >= map_main.ip4_reass_conf_buffers)
+ return -1;
+
+ int i;
+ for (i = 0; i < MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ if (r->fragments[i] == ~0)
+ {
+ r->fragments[i] = pi;
+ map_main.ip4_reass_buffered_counter++;
+ return 0;
+ }
+ return -1;
+}
+
+static_always_inline map_ip6_reass_t *
+map_ip6_reass_lookup (map_ip6_reass_key_t * k, u32 bucket, f64 now)
+{
+ map_main_t *mm = &map_main;
+ u32 ri = mm->ip6_reass_hash_table[bucket];
+ while (ri != MAP_REASS_INDEX_NONE)
+ {
+ map_ip6_reass_t *r = pool_elt_at_index (mm->ip6_reass_pool, ri);
+ if (now < r->ts + (((f64) mm->ip6_reass_conf_lifetime_ms) / 1000) &&
+ r->key.as_u64[0] == k->as_u64[0] &&
+ r->key.as_u64[1] == k->as_u64[1] &&
+ r->key.as_u64[2] == k->as_u64[2] &&
+ r->key.as_u64[3] == k->as_u64[3] &&
+ r->key.as_u64[4] == k->as_u64[4])
+ return r;
+ ri = r->bucket_next;
+ }
+ return NULL;
+}
+
+#define map_ip6_reass_pool_index(r) (r - map_main.ip6_reass_pool)
+
+void
+map_ip6_reass_free (map_ip6_reass_t * r, u32 ** pi_to_drop)
+{
+ map_main_t *mm = &map_main;
+ int i;
+ for (i = 0; i < MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ if (r->fragments[i].pi != ~0)
+ {
+ vec_add1 (*pi_to_drop, r->fragments[i].pi);
+ r->fragments[i].pi = ~0;
+ map_main.ip6_reass_buffered_counter--;
+ }
+
+ // Unlink in hash bucket
+ map_ip6_reass_t *r2 = NULL;
+ u32 r2i = mm->ip6_reass_hash_table[r->bucket];
+ while (r2i != map_ip6_reass_pool_index (r))
+ {
+ ASSERT (r2i != MAP_REASS_INDEX_NONE);
+ r2 = pool_elt_at_index (mm->ip6_reass_pool, r2i);
+ r2i = r2->bucket_next;
+ }
+ if (r2)
+ {
+ r2->bucket_next = r->bucket_next;
+ }
+ else
+ {
+ mm->ip6_reass_hash_table[r->bucket] = r->bucket_next;
+ }
+
+ // Unlink in list
+ if (r->fifo_next == map_ip6_reass_pool_index (r))
+ {
+ //Single element in the list, list is now empty
+ mm->ip6_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ }
+ else
+ {
+ if (mm->ip6_reass_fifo_last == map_ip6_reass_pool_index (r)) //First element
+ mm->ip6_reass_fifo_last = r->fifo_prev;
+ pool_elt_at_index (mm->ip6_reass_pool, r->fifo_prev)->fifo_next =
+ r->fifo_next;
+ pool_elt_at_index (mm->ip6_reass_pool, r->fifo_next)->fifo_prev =
+ r->fifo_prev;
+ }
+
+ // Free from pool if necessary
+ pool_put (mm->ip6_reass_pool, r);
+ mm->ip6_reass_allocated--;
+}
+
+map_ip6_reass_t *
+map_ip6_reass_get (ip6_address_t * src, ip6_address_t * dst, u32 fragment_id,
+ u8 protocol, u32 ** pi_to_drop)
+{
+ map_ip6_reass_t *r;
+ map_main_t *mm = &map_main;
+ map_ip6_reass_key_t k = {
+ .src = *src,
+ .dst = *dst,
+ .fragment_id = fragment_id,
+ .protocol = protocol
+ };
+
+ u32 h = 0;
+ int i;
+
+#ifdef clib_crc32c_uses_intrinsics
+ h = clib_crc32c ((u8 *) k.as_u32, 40);
+#else
+ u64 tmp =
+ k.as_u64[0] ^ k.as_u64[1] ^ k.as_u64[2] ^ k.as_u64[3] ^ k.as_u64[4];
+ h = clib_xxhash (tmp);
+#endif
+
+ h = h >> (32 - mm->ip6_reass_ht_log2len);
+
+ f64 now = vlib_time_now (mm->vlib_main);
+
+ //Cache garbage collection
+ while (mm->ip6_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ map_ip6_reass_t *last =
+ pool_elt_at_index (mm->ip6_reass_pool, mm->ip6_reass_fifo_last);
+ if (last->ts + (((f64) mm->ip6_reass_conf_lifetime_ms) / 1000) < now)
+ map_ip6_reass_free (last, pi_to_drop);
+ else
+ break;
+ }
+
+ if ((r = map_ip6_reass_lookup (&k, h, now)))
+ return r;
+
+ if (mm->ip6_reass_allocated >= mm->ip6_reass_conf_pool_size)
+ return NULL;
+
+ pool_get (mm->ip6_reass_pool, r);
+ mm->ip6_reass_allocated++;
+ for (i = 0; i < MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ {
+ r->fragments[i].pi = ~0;
+ r->fragments[i].next_data_len = 0;
+ r->fragments[i].next_data_offset = 0;
+ }
+
+ u32 ri = map_ip6_reass_pool_index (r);
+
+ //Link in new bucket
+ r->bucket = h;
+ r->bucket_next = mm->ip6_reass_hash_table[h];
+ mm->ip6_reass_hash_table[h] = ri;
+
+ //Link in fifo
+ if (mm->ip6_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ r->fifo_next =
+ pool_elt_at_index (mm->ip6_reass_pool,
+ mm->ip6_reass_fifo_last)->fifo_next;
+ r->fifo_prev = mm->ip6_reass_fifo_last;
+ pool_elt_at_index (mm->ip6_reass_pool, r->fifo_prev)->fifo_next = ri;
+ pool_elt_at_index (mm->ip6_reass_pool, r->fifo_next)->fifo_prev = ri;
+ }
+ else
+ {
+ r->fifo_next = r->fifo_prev = ri;
+ mm->ip6_reass_fifo_last = ri;
+ }
+
+ //Set other fields
+ r->ts = now;
+ r->key = k;
+ r->ip4_header.ip_version_and_header_length = 0;
+#ifdef MAP_IP6_REASS_COUNT_BYTES
+ r->expected_total = 0xffff;
+ r->forwarded = 0;
+#endif
+ return r;
+}
+
+int
+map_ip6_reass_add_fragment (map_ip6_reass_t * r, u32 pi,
+ u16 data_offset, u16 next_data_offset,
+ u8 * data_start, u16 data_len)
+{
+ map_ip6_fragment_t *f = NULL, *prev_f = NULL;
+ u16 copied_len = (data_len > 20) ? 20 : data_len;
+
+ if (map_main.ip6_reass_buffered_counter >= map_main.ip6_reass_conf_buffers)
+ return -1;
+
+ //Lookup for fragments for the current buffer
+ //and the one before that
+ int i;
+ for (i = 0; i < MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ {
+ if (data_offset && r->fragments[i].next_data_offset == data_offset)
+ {
+ prev_f = &r->fragments[i]; // This is buffer for previous packet
+ }
+ else if (r->fragments[i].next_data_offset == next_data_offset)
+ {
+ f = &r->fragments[i]; // This is a buffer for the current packet
+ }
+ else if (r->fragments[i].next_data_offset == 0)
+ { //Available
+ if (f == NULL)
+ f = &r->fragments[i];
+ else if (prev_f == NULL)
+ prev_f = &r->fragments[i];
+ }
+ }
+
+ if (!f || f->pi != ~0)
+ return -1;
+
+ if (data_offset)
+ {
+ if (!prev_f)
+ return -1;
+
+ clib_memcpy (prev_f->next_data, data_start, copied_len);
+ prev_f->next_data_len = copied_len;
+ prev_f->next_data_offset = data_offset;
+ }
+ else
+ {
+ if (((ip4_header_t *) data_start)->ip_version_and_header_length != 0x45)
+ return -1;
+
+ if (r->ip4_header.ip_version_and_header_length == 0)
+ clib_memcpy (&r->ip4_header, data_start, sizeof (ip4_header_t));
+ }
+
+ if (data_len > 20)
+ {
+ f->next_data_offset = next_data_offset;
+ f->pi = pi;
+ map_main.ip6_reass_buffered_counter++;
+ }
+ return 0;
+}
+
+void
+map_ip4_reass_reinit (u32 * trashed_reass, u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ int i;
+
+ if (dropped_packets)
+ *dropped_packets = mm->ip4_reass_buffered_counter;
+ if (trashed_reass)
+ *trashed_reass = mm->ip4_reass_allocated;
+ if (mm->ip4_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ u16 ri = mm->ip4_reass_fifo_last;
+ do
+ {
+ map_ip4_reass_t *r = pool_elt_at_index (mm->ip4_reass_pool, ri);
+ for (i = 0; i < MAP_IP4_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ if (r->fragments[i] != ~0)
+ map_ip4_drop_pi (r->fragments[i]);
+
+ ri = r->fifo_next;
+ pool_put (mm->ip4_reass_pool, r);
+ }
+ while (ri != mm->ip4_reass_fifo_last);
+ }
+
+ vec_free (mm->ip4_reass_hash_table);
+ vec_resize (mm->ip4_reass_hash_table, 1 << mm->ip4_reass_ht_log2len);
+ for (i = 0; i < (1 << mm->ip4_reass_ht_log2len); i++)
+ mm->ip4_reass_hash_table[i] = MAP_REASS_INDEX_NONE;
+ pool_free (mm->ip4_reass_pool);
+ pool_alloc (mm->ip4_reass_pool, mm->ip4_reass_conf_pool_size);
+
+ mm->ip4_reass_allocated = 0;
+ mm->ip4_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ mm->ip4_reass_buffered_counter = 0;
+}
+
+u8
+map_get_ht_log2len (f32 ht_ratio, u16 pool_size)
+{
+ u32 desired_size = (u32) (pool_size * ht_ratio);
+ u8 i;
+ for (i = 1; i < 31; i++)
+ if ((1 << i) >= desired_size)
+ return i;
+ return 4;
+}
+
+int
+map_ip4_reass_conf_ht_ratio (f32 ht_ratio, u32 * trashed_reass,
+ u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ if (ht_ratio > MAP_IP4_REASS_CONF_HT_RATIO_MAX)
+ return -1;
+
+ map_ip4_reass_lock ();
+ mm->ip4_reass_conf_ht_ratio = ht_ratio;
+ mm->ip4_reass_ht_log2len =
+ map_get_ht_log2len (ht_ratio, mm->ip4_reass_conf_pool_size);
+ map_ip4_reass_reinit (trashed_reass, dropped_packets);
+ map_ip4_reass_unlock ();
+ return 0;
+}
+
+int
+map_ip4_reass_conf_pool_size (u16 pool_size, u32 * trashed_reass,
+ u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ if (pool_size > MAP_IP4_REASS_CONF_POOL_SIZE_MAX)
+ return -1;
+
+ map_ip4_reass_lock ();
+ mm->ip4_reass_conf_pool_size = pool_size;
+ map_ip4_reass_reinit (trashed_reass, dropped_packets);
+ map_ip4_reass_unlock ();
+ return 0;
+}
+
+int
+map_ip4_reass_conf_lifetime (u16 lifetime_ms)
+{
+ map_main.ip4_reass_conf_lifetime_ms = lifetime_ms;
+ return 0;
+}
+
+int
+map_ip4_reass_conf_buffers (u32 buffers)
+{
+ map_main.ip4_reass_conf_buffers = buffers;
+ return 0;
+}
+
+void
+map_ip6_reass_reinit (u32 * trashed_reass, u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ if (dropped_packets)
+ *dropped_packets = mm->ip6_reass_buffered_counter;
+ if (trashed_reass)
+ *trashed_reass = mm->ip6_reass_allocated;
+ int i;
+ if (mm->ip6_reass_fifo_last != MAP_REASS_INDEX_NONE)
+ {
+ u16 ri = mm->ip6_reass_fifo_last;
+ do
+ {
+ map_ip6_reass_t *r = pool_elt_at_index (mm->ip6_reass_pool, ri);
+ for (i = 0; i < MAP_IP6_REASS_MAX_FRAGMENTS_PER_REASSEMBLY; i++)
+ if (r->fragments[i].pi != ~0)
+ map_ip6_drop_pi (r->fragments[i].pi);
+
+ ri = r->fifo_next;
+ pool_put (mm->ip6_reass_pool, r);
+ }
+ while (ri != mm->ip6_reass_fifo_last);
+ mm->ip6_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ }
+
+ vec_free (mm->ip6_reass_hash_table);
+ vec_resize (mm->ip6_reass_hash_table, 1 << mm->ip6_reass_ht_log2len);
+ for (i = 0; i < (1 << mm->ip6_reass_ht_log2len); i++)
+ mm->ip6_reass_hash_table[i] = MAP_REASS_INDEX_NONE;
+ pool_free (mm->ip6_reass_pool);
+ pool_alloc (mm->ip6_reass_pool, mm->ip4_reass_conf_pool_size);
+
+ mm->ip6_reass_allocated = 0;
+ mm->ip6_reass_buffered_counter = 0;
+}
+
+int
+map_ip6_reass_conf_ht_ratio (f32 ht_ratio, u32 * trashed_reass,
+ u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ if (ht_ratio > MAP_IP6_REASS_CONF_HT_RATIO_MAX)
+ return -1;
+
+ map_ip6_reass_lock ();
+ mm->ip6_reass_conf_ht_ratio = ht_ratio;
+ mm->ip6_reass_ht_log2len =
+ map_get_ht_log2len (ht_ratio, mm->ip6_reass_conf_pool_size);
+ map_ip6_reass_reinit (trashed_reass, dropped_packets);
+ map_ip6_reass_unlock ();
+ return 0;
+}
+
+int
+map_ip6_reass_conf_pool_size (u16 pool_size, u32 * trashed_reass,
+ u32 * dropped_packets)
+{
+ map_main_t *mm = &map_main;
+ if (pool_size > MAP_IP6_REASS_CONF_POOL_SIZE_MAX)
+ return -1;
+
+ map_ip6_reass_lock ();
+ mm->ip6_reass_conf_pool_size = pool_size;
+ map_ip6_reass_reinit (trashed_reass, dropped_packets);
+ map_ip6_reass_unlock ();
+ return 0;
+}
+
+int
+map_ip6_reass_conf_lifetime (u16 lifetime_ms)
+{
+ map_main.ip6_reass_conf_lifetime_ms = lifetime_ms;
+ return 0;
+}
+
+int
+map_ip6_reass_conf_buffers (u32 buffers)
+{
+ map_main.ip6_reass_conf_buffers = buffers;
+ return 0;
+}
+
+/* *INDENT-OFF* */
+
+/*?
+ * Configure MAP reassembly behaviour
+ *
+ * @cliexpar
+ * @cliexstart{map params reassembly}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_ip4_reass_lifetime_command, static) = {
+ .path = "map params reassembly",
+ .short_help = "map params reassembly [ip4 | ip6] [lifetime <lifetime-ms>] "
+ "[pool-size <pool-size>] [buffers <buffers>] "
+ "[ht-ratio <ht-ratio>]",
+ .function = map_params_reass_command_fn,
+};
+
+/*?
+ * Set or copy the IP TOS/Traffic Class field
+ *
+ * @cliexpar
+ * @cliexstart{map params traffic-class}
+ *
+ * This command is used to set the traffic-class field in translated
+ * or encapsulated packets. If copy is specifed (the default) then the
+ * traffic-class/TOS field is copied from the original packet to the
+ * translated / encapsulating header.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_traffic_class_command, static) = {
+ .path = "map params traffic-class",
+ .short_help = "map params traffic-class {0x0-0xff | copy}",
+ .function = map_traffic_class_command_fn,
+};
+
+/*?
+ * Bypass IP4/IP6 lookup
+ *
+ * @cliexpar
+ * @cliexstart{map params pre-resolve}
+ *
+ * Bypass a second FIB lookup of the translated or encapsulated
+ * packet, and forward the packet directly to the specified
+ * next-hop. This optimization trades forwarding flexibility for
+ * performance.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_pre_resolve_command, static) = {
+ .path = "map params pre-resolve",
+ .short_help = " map params pre-resolve {ip4-nh <address>} "
+ "| {ip6-nh <address>}",
+ .function = map_pre_resolve_command_fn,
+};
+
+/*?
+ * Enable or disable the MAP-E inbound security check
+ *
+ * @cliexpar
+ * @cliexstart{map params security-check}
+ *
+ * By default, a decapsulated packet's IPv4 source address will be
+ * verified against the outer header's IPv6 source address. Disabling
+ * this feature will allow IPv4 source address spoofing.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_security_check_command, static) = {
+ .path = "map params security-check",
+ .short_help = "map params security-check on|off",
+ .function = map_security_check_command_fn,
+};
+
+/*?
+ * Specifiy the IPv4 source address used for relayed ICMP error messages
+ *
+ * @cliexpar
+ * @cliexstart{map params icmp source-address}
+ *
+ * This command specifies which IPv4 source address (must be local to
+ * the system), that is used for relayed received IPv6 ICMP error
+ * messages.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_icmp_relay_source_address_command, static) = {
+ .path = "map params icmp source-address",
+ .short_help = "map params icmp source-address <ip4-address>",
+ .function = map_icmp_relay_source_address_command_fn,
+};
+
+/*?
+ * Send IPv6 ICMP unreachables
+ *
+ * @cliexpar
+ * @cliexstart{map params icmp6 unreachables}
+ *
+ * Send IPv6 ICMP unreachable messages back if security check fails or
+ * no MAP domain exists.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_icmp_unreachables_command, static) = {
+ .path = "map params icmp6 unreachables",
+ .short_help = "map params icmp6 unreachables {on|off}",
+ .function = map_icmp_unreachables_command_fn,
+};
+
+/*?
+ * Configure MAP fragmentation behaviour
+ *
+ * @cliexpar
+ * @cliexstart{map params fragment}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_fragment_command, static) = {
+ .path = "map params fragment",
+ .short_help = "map params fragment inner|outer",
+ .function = map_fragment_command_fn,
+};
+
+/*?
+ * Ignore the IPv4 Don't fragment bit
+ *
+ * @cliexpar
+ * @cliexstart{map params fragment ignore-df}
+ *
+ * Allows fragmentation of the IPv4 packet even if the DF bit is
+ * set. The choice between inner or outer fragmentation of tunnel
+ * packets is complicated. The benefit of inner fragmentation is that
+ * the ultimate endpoint must reassemble, instead of the tunnel
+ * endpoint.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_fragment_df_command, static) = {
+ .path = "map params fragment ignore-df",
+ .short_help = "map params fragment ignore-df on|off",
+ .function = map_fragment_df_command_fn,
+};
+
+/*?
+ * Specifiy if the inbound security check should be done on fragments
+ *
+ * @cliexpar
+ * @cliexstart{map params security-check fragments}
+ *
+ * Typically the inbound on-decapsulation security check is only done
+ * on the first packet. The packet that contains the L4
+ * information. While a security check on every fragment is possible,
+ * it has a cost. State must be created on the first fragment.
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_security_check_frag_command, static) = {
+ .path = "map params security-check fragments",
+ .short_help = "map params security-check fragments on|off",
+ .function = map_security_check_frag_command_fn,
+};
+
+/*?
+ * Add MAP domain
+ *
+ * @cliexpar
+ * @cliexstart{map add domain}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_add_domain_command, static) = {
+ .path = "map add domain",
+ .short_help = "map add domain ip4-pfx <ip4-pfx> ip6-pfx <ip6-pfx> "
+ "ip6-src <ip6-pfx> ea-bits-len <n> psid-offset <n> psid-len <n> "
+ "[map-t] [map-ce] [mtu <mtu>]",
+ .function = map_add_domain_command_fn,
+};
+
+/*?
+ * Add MAP rule to a domain
+ *
+ * @cliexpar
+ * @cliexstart{map add rule}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_add_rule_command, static) = {
+ .path = "map add rule",
+ .short_help = "map add rule index <domain> psid <psid> ip6-dst <ip6-addr>",
+ .function = map_add_rule_command_fn,
+};
+
+/*?
+ * Delete MAP domain
+ *
+ * @cliexpar
+ * @cliexstart{map del domain}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(map_del_command, static) = {
+ .path = "map del domain",
+ .short_help = "map del domain index <domain>",
+ .function = map_del_domain_command_fn,
+};
+
+/*?
+ * Show MAP domains
+ *
+ * @cliexpar
+ * @cliexstart{show map domain}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(show_map_domain_command, static) = {
+ .path = "show map domain",
+ .short_help = "show map domain index <n> [counters]",
+ .function = show_map_domain_command_fn,
+};
+
+/*?
+ * Show MAP statistics
+ *
+ * @cliexpar
+ * @cliexstart{show map stats}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(show_map_stats_command, static) = {
+ .path = "show map stats",
+ .short_help = "show map stats",
+ .function = show_map_stats_command_fn,
+};
+
+/*?
+ * Show MAP fragmentation information
+ *
+ * @cliexpar
+ * @cliexstart{show map fragments}
+ * @cliexend
+ ?*/
+VLIB_CLI_COMMAND(show_map_fragments_command, static) = {
+ .path = "show map fragments",
+ .short_help = "show map fragments",
+ .function = show_map_fragments_command_fn,
+};
+
+VLIB_PLUGIN_REGISTER() = {
+ .version = VPP_BUILD_VER,
+ .description = "Mapping of address and port (MAP)",
+};
+
+/* *INDENT-ON* */
+
+static clib_error_t *
+map_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ map_main_t *mm = &map_main;
+ u8 is_ce = false;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "customer edge"))
+ is_ce = true;
+ else
+ return clib_error_return (0, "unknown input '%U'",
+ format_unformat_error, input);
+ }
+
+ mm->is_ce = is_ce;
+
+ return 0;
+}
+
+VLIB_CONFIG_FUNCTION (map_config, "map");
+
+/*
+ * map_init
+ */
+clib_error_t *
+map_init (vlib_main_t * vm)
+{
+ map_main_t *mm = &map_main;
+ clib_error_t *error = 0;
+ mm->vnet_main = vnet_get_main ();
+ mm->vlib_main = vm;
+
+#ifdef MAP_SKIP_IP6_LOOKUP
+ fib_protocol_t proto;
+
+ FOR_EACH_FIB_PROTOCOL (proto)
+ {
+ map_pre_resolve_init (&pre_resolved[proto]);
+ }
+#endif
+
+ /* traffic class */
+ mm->tc = 0;
+ mm->tc_copy = true;
+
+ /* Inbound security check */
+ mm->sec_check = true;
+ mm->sec_check_frag = false;
+
+ /* ICMP6 Type 1, Code 5 for security check failure */
+ mm->icmp6_enabled = false;
+
+ mm->is_ce = false;
+
+ /* Inner or outer fragmentation */
+ mm->frag_inner = false;
+ mm->frag_ignore_df = false;
+
+ vec_validate (mm->domain_counters, MAP_N_DOMAIN_COUNTER - 1);
+ mm->domain_counters[MAP_DOMAIN_COUNTER_RX].name = "rx";
+ mm->domain_counters[MAP_DOMAIN_COUNTER_TX].name = "tx";
+
+ vlib_validate_simple_counter (&mm->icmp_relayed, 0);
+ vlib_zero_simple_counter (&mm->icmp_relayed, 0);
+
+ /* IP4 virtual reassembly */
+ mm->ip4_reass_hash_table = 0;
+ mm->ip4_reass_pool = 0;
+ mm->ip4_reass_lock =
+ clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
+ *mm->ip4_reass_lock = 0;
+ mm->ip4_reass_conf_ht_ratio = MAP_IP4_REASS_HT_RATIO_DEFAULT;
+ mm->ip4_reass_conf_lifetime_ms = MAP_IP4_REASS_LIFETIME_DEFAULT;
+ mm->ip4_reass_conf_pool_size = MAP_IP4_REASS_POOL_SIZE_DEFAULT;
+ mm->ip4_reass_conf_buffers = MAP_IP4_REASS_BUFFERS_DEFAULT;
+ mm->ip4_reass_ht_log2len =
+ map_get_ht_log2len (mm->ip4_reass_conf_ht_ratio,
+ mm->ip4_reass_conf_pool_size);
+ mm->ip4_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ map_ip4_reass_reinit (NULL, NULL);
+
+ /* IP6 virtual reassembly */
+ mm->ip6_reass_hash_table = 0;
+ mm->ip6_reass_pool = 0;
+ mm->ip6_reass_lock =
+ clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES, CLIB_CACHE_LINE_BYTES);
+ *mm->ip6_reass_lock = 0;
+ mm->ip6_reass_conf_ht_ratio = MAP_IP6_REASS_HT_RATIO_DEFAULT;
+ mm->ip6_reass_conf_lifetime_ms = MAP_IP6_REASS_LIFETIME_DEFAULT;
+ mm->ip6_reass_conf_pool_size = MAP_IP6_REASS_POOL_SIZE_DEFAULT;
+ mm->ip6_reass_conf_buffers = MAP_IP6_REASS_BUFFERS_DEFAULT;
+ mm->ip6_reass_ht_log2len =
+ map_get_ht_log2len (mm->ip6_reass_conf_ht_ratio,
+ mm->ip6_reass_conf_pool_size);
+ mm->ip6_reass_fifo_last = MAP_REASS_INDEX_NONE;
+ map_ip6_reass_reinit (NULL, NULL);
+
+#ifdef MAP_SKIP_IP6_LOOKUP
+ fib_node_register_type (FIB_NODE_TYPE_MAP_E, &map_vft);
+#endif
+ map_dpo_module_init ();
+
+ error = map_plugin_api_hookup (vm);
+
+ return error;
+}
+
+VLIB_INIT_FUNCTION (map_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */