diff options
Diffstat (limited to 'vnet/test/lisp-cp/test_cp_serdes.c')
| -rw-r--r-- | vnet/test/lisp-cp/test_cp_serdes.c | 336 |
1 files changed, 336 insertions, 0 deletions
diff --git a/vnet/test/lisp-cp/test_cp_serdes.c b/vnet/test/lisp-cp/test_cp_serdes.c new file mode 100644 index 00000000..9e89dd91 --- /dev/null +++ b/vnet/test/lisp-cp/test_cp_serdes.c @@ -0,0 +1,336 @@ +/* + * Copyright (c) 2016 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/vnet.h> +#include <vppinfra/error.h> +#include <vnet/lisp-cp/lisp_cp_messages.h> +#include <vnet/lisp-cp/control.h> +#include <vnet/lisp-cp/lisp_msg_serdes.h> +#include <vlibapi/api.h> +#include <vnet/lisp-cp/packets.h> + +#define _assert(e) \ + error = CLIB_ERROR_ASSERT (e); \ + if (error) \ + goto done; + +static void print_chunk(u8 * b, int * offset, int c, char * des) +{ + int i, n = offset[0] + c;; + for (i = offset[0]; i < n; i++) + { + printf("0x%02x, ", b[i]); + } + printf(" // %s\n", des); + *offset += c; +} + +void print_map_request(map_request_hdr_t * h) +{ +#define pchunk(_count, _desc) \ + print_chunk((u8 *)h, &offset, _count, _desc) + + int offset = 0; + + pchunk(4, "data"); + pchunk(8, "Nonce"); + pchunk(2, "Source-EID-AFI"); + pchunk(4, "Source EID Address"); + pchunk(2, "ITR-RLOC-AFI 1"); + pchunk(4, "ITR-RLOC Address 1"); + pchunk(2, "ITR-RLOC-AFI 2"); + pchunk(16, "ITR-RLOC Address 2"); + pchunk(1, "REC: reserved"); + pchunk(1, "REC: EID mask-len"); + pchunk(2, "REC: EID-prefix-AFI"); + pchunk(4, "REC: EID-prefix"); + printf("\n"); +} + +static clib_error_t * test_lisp_msg_push_ecm () +{ + vlib_main_t * vm = vlib_get_main (); + clib_error_t * error = 0; + gid_address_t la, ra; + vlib_buffer_t * b = 0; + u32 buff_len = 500; + int lp = 0x15, rp = 0x14; + + b = clib_mem_alloc (buff_len); + memset((u8 *)b, 0, buff_len); + b->current_length = buff_len; + b->current_data = sizeof(udp_header_t) + sizeof(ip4_header_t) + + sizeof(ecm_hdr_t) + 1; + + la.type = IP_PREFIX; + la.ippref.addr.ip.v4.as_u32 = 0xa1b2c3d4; + la.ippref.addr.version = IP4; + + ra.type = IP_PREFIX; + ra.ippref.addr.ip.v4.as_u32 = 0x90817263; + ra.ippref.addr.version = IP4; + + ecm_hdr_t * lh = lisp_msg_push_ecm (vm, b, lp, rp, &la, &ra); + + u8 expected_ecm_hdr[] = { + 0x80, 0x00, 0x00, 0x00 + }; + _assert(0 == memcmp(expected_ecm_hdr, lh, sizeof(expected_ecm_hdr))); + + ip4_header_t * ih = (ip4_header_t *) (lh + 1); + /* clear ip checksum */ + memset((u8 *)ih + 10, 0, 2); + + u8 expected_ip4_hdr[] = { + 0x45, /* version; IHL */ + 0x00, /* services */ + 0x02, 0x10, /* total length */ + 0x00, 0x00, /* identification */ + 0x40, 0x00, /* flags; fragment offset*/ + 0xff, /* TTL */ + 0x11, /* protocol */ + 0x00, 0x00, /* header checksum */ + 0xd4, 0xc3, 0xb2, 0xa1, /* src IP */ + 0x63, 0x72, 0x81, 0x90, /* dst IP */ + }; + _assert(0 == memcmp(ih, expected_ip4_hdr, sizeof(expected_ip4_hdr))); + + udp_header_t * uh = (udp_header_t *) (ih + 1); + /* clear udp checksum */ + memset((u8 *)uh + 6, 0, 2); + + u8 expected_udp_hdr[] = { + 0x00, 0x15, /* src port */ + 0x00, 0x14, /* dst port */ + 0x01, 0xfc, /* length */ + 0x00, 0x00, /* checksum */ + }; + _assert(0 == memcmp(uh, expected_udp_hdr, sizeof(expected_udp_hdr))); + +done: + clib_mem_free (b); + return error; +} + +static clib_error_t * test_lisp_msg_parse_mapping_record () +{ + clib_error_t * error = 0; + locator_t probed; + locator_t * locs = 0; + vlib_buffer_t * b = 0; + gid_address_t eid; + u32 buff_len = 500; + + b = clib_mem_alloc (buff_len); + memset((u8 *)b, 0, buff_len); + + u8 map_reply_records[] = { + /* 1. record */ + 0x01, 0x02, 0x03, 0x04, /* record TTL */ + 0x01, /* locator count */ + 0x00, 0x00, 0x00, /* eid-mask-len; ... */ + 0x00, 0x00, /* reserved; map-version num */ + 0x00, 0x01, /* EID-Prefix-AFI */ + 0x33, 0x44, 0x55, 0x66, /* eid-prefix */ + /* loc */ + 0x0a, /* prority */ + 0x0b, /* weight */ + 0x0c, /* m-prority */ + 0x0d, /* m-weight */ + 0x00, 0x00, /* unused flags */ + 0x00, 0x01, /* Loc-AFI */ + 0xaa, 0xbb, 0xcc, 0xdd, /* Loator */ + }; + b->current_length = buff_len; + memcpy(b->data, map_reply_records, sizeof(map_reply_records)); + + lisp_msg_parse_mapping_record (b, &eid, &locs, &probed); + _assert(vec_len (locs) == 1); + _assert(eid.ippref.addr.ip.v4.as_u32 == 0x66554433); + _assert(locs[0].local == 0); + _assert(locs[0].address.ippref.addr.ip.v4.as_u32 == 0xddccbbaa); + _assert(locs[0].address.type == IP_PREFIX); + _assert(locs[0].priority == 0xa); + _assert(locs[0].weight == 0xb); + _assert(locs[0].mpriority == 0xc); + _assert(locs[0].mweight == 0xd); + +done: + clib_mem_free (b); + if (locs) + vec_free (locs); + return error; +} + +static map_request_hdr_t * +build_map_request (lisp_cp_main_t * lcm, vlib_buffer_t * b) +{ + gid_address_t _seid, * seid = &_seid; + gid_address_t _deid, * deid = &_deid; + u8 is_smr_invoked = 1; + u64 nonce = 0; + map_request_hdr_t *h; + ip_address_t * rlocs = 0; + ip_address_t _addr, * addr = &_addr; + + gid_address_type(seid) = IP_PREFIX; + gid_address_ip(seid).ip.v4.as_u32 = 0x12345678; + seid->ippref.addr.version = IP4; + + gid_address_type(deid) = IP_PREFIX; + gid_address_ip(deid).ip.v4.as_u32 = 0x9abcdef0; + deid->ippref.addr.version = IP4; + gid_address_ippref_len(deid) = 24; + + ip_addr_version(addr) = IP4; + ip_addr_v4(addr).data_u32 = 0x10203040; + vec_add1(rlocs, addr[0]); + + ip_addr_v6(addr).as_u32[0] = 0xffeeddcc; + ip_addr_v6(addr).as_u32[1] = 0xbbaa9988; + ip_addr_v6(addr).as_u32[2] = 0x77665544; + ip_addr_v6(addr).as_u32[3] = 0x33221100; + ip_addr_version(addr) = IP6; + vec_add1(rlocs, addr[0]); + + h = lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, + is_smr_invoked, &nonce); + vec_free(rlocs); + return h; +} + +static clib_error_t * test_lisp_msg_parse () +{ + gid_address_t eid; + lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); + map_request_hdr_t *h; + gid_address_t gid; + clib_error_t * error = 0; + vlib_buffer_t * b; + gid_address_t * rlocs = 0; + + u8 * data = clib_mem_alloc(500); + memset(data, 0, 500); + b = (vlib_buffer_t *) data; + + h = build_map_request (lcm, b); + + vlib_buffer_pull(b, sizeof(*h)); + u32 len = lisp_msg_parse_addr(b, &gid); + _assert (len == 2 + 4 + /* Source-EID-AFI field lenght + IPv4 address length */); + _assert (gid.ippref.addr.ip.v4.as_u32 == 0x12345678); + _assert (gid.ippref.addr.version == IP4); + + u8 rloc_count = MREQ_ITR_RLOC_COUNT(h) + 1; + lisp_msg_parse_itr_rlocs (b, &rlocs, rloc_count); + + _assert (vec_len (rlocs) == 2); + _assert (rlocs[0].ippref.addr.ip.v4.as_u32 == 0x10203040); + _assert (rlocs[0].ippref.addr.version == IP4); + + _assert (rlocs[1].ippref.addr.ip.v6.as_u32[0] == 0xffeeddcc); + _assert (rlocs[1].ippref.addr.ip.v6.as_u32[1] == 0xbbaa9988); + _assert (rlocs[1].ippref.addr.ip.v6.as_u32[2] == 0x77665544); + _assert (rlocs[1].ippref.addr.ip.v6.as_u32[3] == 0x33221100); + _assert (rlocs[1].ippref.addr.version == IP6); + + lisp_msg_parse_eid_rec (b, &eid); + _assert (eid.ippref.addr.ip.v4.as_u32 == 0x9abcdef0); + _assert (eid.ippref.addr.version == IP4); + _assert (eid.ippref.len == 24); + +done: + clib_mem_free (data); + if (rlocs) + vec_free (rlocs); + return error; +} + +static clib_error_t * test_lisp_msg_put_mreq () +{ + lisp_cp_main_t * lcm = vnet_lisp_cp_get_main(); + clib_error_t * error = 0; + map_request_hdr_t *h; + + u8 * data = clib_mem_alloc(500); + memset(data, 0, 500); + + h = build_map_request (lcm, (vlib_buffer_t *)data); + + /* clear Nonce to simplify comparison */ + memset((u8 *)h + 4, 0, 8); + + print_map_request(h); + + u8 expected_data[50] = { + 0x10, 0x40, 0x01, 0x01, /* type; flags; IRC; REC count */ + 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, /* nonce */ + 0x00, 0x01, /* Source-EID-AFI */ + 0x78, 0x56, 0x34, 0x12, /* Source EID Address */ + + /* RLOCs */ + 0x00, 0x01, /* ITR-RLOC-AFI 1 */ + 0x40, 0x30, 0x20, 0x10, /* ITR-RLOC Address 1 */ + 0x00, 0x02, /* ITR-RLOC-AFI 2 */ + 0xcc, 0xdd, 0xee, 0xff, + 0x88, 0x99, 0xaa, 0xbb, + 0x44, 0x55, 0x66, 0x77, + 0x00, 0x11, 0x22, 0x33, /* ITR-RLOC Address 2 */ + + /* record */ + 0x00, /* reserved */ + 0x18, /* EID mask-len */ + 0x00, 0x01, /* EID-prefix-AFI */ + 0xf0, 0xde, 0xbc, 0x9a, /* EID-prefix */ + }; + + int r = memcmp(expected_data, (u8 *)h, sizeof(expected_data)); + error = CLIB_ERROR_ASSERT (r == 0); + + clib_mem_free(data); + return error; +} + +#define foreach_test_case \ + _(lisp_msg_put_mreq) \ + _(lisp_msg_push_ecm) \ + _(lisp_msg_parse) \ + _(lisp_msg_parse_mapping_record) + +int run_tests (void) +{ + clib_error_t * error; + +#define _(_test_name) \ + error = test_ ## _test_name (); \ + if (error) \ + { \ + clib_error_report (error); \ + return 0; \ + } + + foreach_test_case +#undef _ + + return 0; +} + +int main() +{ + return run_tests (); +} +#undef _assert |