fix(tests): Hoststack compatibility - csit

diff options

author	pmikus <peter.mikus@protonmail.ch>	2023-05-30 13:46:24 +0000
committer	pmikus <peter.mikus@protonmail.ch>	2023-05-30 13:50:29 +0000
commit	31285a54d3d37336517c167c84597d451b9c6ecf (patch)
tree	a1fd59ca18ca0bac6f704230c1f081983726bcd2 /fdio.infra.ansible/roles/docker_images
parent	ffb7ab505a7c3005b9542c43ceb95583992b3abf (diff)

fix(tests): Hoststack compatibility

Signed-off-by: pmikus <peter.mikus@protonmail.ch> Change-Id: I198fe62ddba8910c6bd8256739cc2503b87dfc75

Diffstat (limited to 'fdio.infra.ansible/roles/docker_images')

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fdio.infra.ansible/roles/docker_images/files/base/Dockerfile

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fdio.infra.ansible/roles/docker_images/templates/docker-compose-sut.yaml.j2

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fdio.infra.ansible/roles/docker_images/templates/docker-compose-tg.yaml.j2

3 files changed, 37 insertions, 1 deletions

/* * 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 <vnet/map/map_dpo.h> #include <vppinfra/crc32.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; } } 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) { 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; } /* 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 */ 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_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. */ 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_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 { 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 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, (d->flags & MAP_DOMAIN_TRANSLATION) ? "map-t" : ""); 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] [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, }; /* *INDENT-ON* */ /* * map_init */ clib_error_t * map_init (vlib_main_t * vm) { map_main_t *mm = &map_main; 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; /* 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 (); return 0; } VLIB_INIT_FUNCTION (map_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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