InfiniTime.git

ref: 0.12.0

src/libs/mynewt-nimble/nimble/host/tools/log2smtest.rb


   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
#!/usr/bin/env ruby

#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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.
#

### This script converts a bletiny log into a security manager unit test.  The
### input log must contain the connection establishment and complete pairing
### procedure.
###
### Arguments: None
### Stdin: bletiny log file

$PAIR_ALG_STRINGS = {
    0 => [ 'BLE_SM_PAIR_ALG_JW',        'just works',           'jw' ],
    1 => [ 'BLE_SM_PAIR_ALG_PASSKEY',   'passkey entry',        'pk' ],
    2 => [ 'BLE_SM_PAIR_ALG_OOB',       'out of band',          'ob' ],
    3 => [ 'BLE_SM_PAIR_ALG_NUMCMP',    'numeric comparison',   'nc' ]
}

$ADDR_TYPE_STRINGS = {
    0 => 'BLE_ADDR_TYPE_PUBLIC',
    1 => 'BLE_ADDR_TYPE_RANDOM',
    2 => 'BLE_ADDR_TYPE_RPA_PUB_DEFAULT',
    3 => 'BLE_ADDR_TYPE_RPA_RND_DEFAULT',
}

$ACTION_STRINGS = {
    0 => 'BLE_SM_IOACT_NONE',
    1 => 'BLE_SM_IOACT_OOB',
    2 => 'BLE_SM_IOACT_INPUT',
    3 => 'BLE_SM_IOACT_DISP',
    4 => 'BLE_SM_IOACT_NUMCMP',
}

$prev_idx = 0
$ctxt = {}

def test_case_name
    type_str = $ctxt[:sc] ? "sc" : "lgcy"
    init_str = $ctxt[:we_are_init] ? "us" : "peer"
    alg_str = $PAIR_ALG_STRINGS[$ctxt[:pair_alg]][2]
    iio_cap_str = "iio#{$ctxt[:pair_req][:io_cap]}"
    rio_cap_str = "rio#{$ctxt[:pair_rsp][:io_cap]}"
    bonding_str = "b#{$ctxt[:bonding] ? 1 : 0}"
    iat_str = "iat#{$ctxt[:addrs][:init_type]}"
    rat_str = "rat#{$ctxt[:addrs][:resp_type]}"
    ikey_str = "ik#{$ctxt[:pair_rsp][:init_key_dist]}"
    rkey_str = "rk#{$ctxt[:pair_rsp][:resp_key_dist]}"

    "ble_sm_" +
    "#{type_str}_#{init_str}_#{alg_str}_#{iio_cap_str}_#{rio_cap_str}_" +
    "#{bonding_str}_#{iat_str}_#{rat_str}_#{ikey_str}_#{rkey_str}"
end

def test_case_comment
<<-eos
/**
 * #{$ctxt[:sc] ? 'Secure connections' : 'Legacy'} pairing
 * Master: #{$ctxt[:we_are_init] ? "us" : "peer"}
 * Pair algorithm: #{$PAIR_ALG_STRINGS[$ctxt[:pair_alg]][1]}
 * Initiator IO capabilities: #{$ctxt[:pair_req][:io_cap]}
 * Responder IO capabilities: #{$ctxt[:pair_rsp][:io_cap]}
 * Bonding: #{$ctxt[:bonding]}
 * Initiator address type: #{$ADDR_TYPE_STRINGS[$ctxt[:addrs][:init_type]]}
 * Responder address type: #{$ADDR_TYPE_STRINGS[$ctxt[:addrs][:resp_type]]}
 * Initiator key distribution: #{$ctxt[:pair_rsp][:init_key_dist]}
 * Responder key distribution: #{$ctxt[:pair_rsp][:resp_key_dist]}
 */
eos
end

def to_hex_s(byte)
    if byte.is_a?(String)
        byte = s_to_i(byte)
    end

    "0x#{byte.to_s(16).rjust(2, '0')}"
end

# to_i(0) but interpret leading zeros as decimal.
def s_to_i(s)
    if s[0..1] == "0x"
        return s.to_i(16)
    else
        return s.to_i(10)
    end
end

def invalid_byte_line(msg, line)
    str = "invalid byte line"
    if msg != nil
        str += ": #{msg}"
    end

    str += "; line=#{line}"

    raise str
end

def token_string_to_bytes(line, delim = ' ')
    tokens = line.split(delim)
    bytes = []
    tokens.each do |token|
        begin
            byte = token.to_i(16)
            bytes << byte
        rescue
            invalid_byte_line("token=#{token}", line)
        end
    end

    return bytes
end

def txrx_prefix(is_tx)
    if is_tx
        return "tx"
    else
        return "rx"
    end
end

def reqrsp_s(is_req)
    reqrsp = nil
    if is_req
        return "req"
    else
        return "rsp"
    end
end

def bytes_to_arr_body(bytes, indent)
    lines = []

    idx = 0
    while idx < bytes.size
        slice_len = nil
        if bytes.size - idx >= 8
            slice_len = 8
        else
            slice_len = bytes.size - idx
        end

        slice = bytes[idx...(idx + slice_len)]
        line = ' ' * indent +
            slice.map{|b| to_hex_s(b)}.join(", ") + ","
        lines << line

        idx += slice_len
    end

    return lines.join("\n") << "\n"
end

def bytes_to_arr(bytes, name, indent)
    str = "#{' ' * indent}.#{name} = {\n"
    str << bytes_to_arr_body(bytes, indent + 4)
    str << "#{' ' * indent}},"

    return str
end

def addr_string_to_bytes(addr_string)
    token_string_to_bytes(addr_string, ':').reverse
end

def parse_pair_cmd(line, is_req)
    suffix = reqrsp_s(is_req)
    re = %r{
        pair\s#{suffix};
        \s
        conn=\d+
        \s
        io_cap=(?<io_cap>\d+)
        \s
        oob_data_flag=(?<oob_data_flag>\d+)
        \s
        authreq=(?<authreq>0x[0-9a-f]+)
        \s
        mac_enc_key_size=(?<max_enc_key_size>\d+)
        \s
        init_key_dist=(?<init_key_dist>\d+)
        \s
        resp_key_dist=(?<resp_key_dist>\d+)
    }x

    m = re.match(line)
    if m == nil
        return nil
    end

    cmd = {}
    cmd[:io_cap] = s_to_i(m[:io_cap])
    cmd[:oob_data_flag] = s_to_i(m[:oob_data_flag])
    cmd[:authreq] = s_to_i(m[:authreq])
    cmd[:max_enc_key_size] = s_to_i(m[:max_enc_key_size])
    cmd[:init_key_dist] = s_to_i(m[:init_key_dist])
    cmd[:resp_key_dist] = s_to_i(m[:resp_key_dist])

    return cmd
end

def parse_privkey(line)
    if !(line =~ /our privkey=(.+)/)
        return nil
    end
    return token_string_to_bytes($1)
end

def parse_public_key(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: public key; conn=\d+ x=(.+) y=(.+)/)
        return nil
    end

    pubkey = {}
    pubkey[:x] = token_string_to_bytes($1)
    pubkey[:y] = token_string_to_bytes($2)

    if pubkey[:x].size != 32
        raise "invalid public key: x length incorrect; line=#{line}"
    end

    if pubkey[:y].size != 32
        raise "invalid public key: y length incorrect; line=#{line}"
    end

    return pubkey
end

def parse_confirm(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: confirm; conn=\d+ value=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid confirm line (length mismatch): #{line}"
    end

    return { :value => bytes }
end

def parse_random(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: random; conn=\d+ value=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid random line (length mismatch): #{line}"
    end

    return { :value => bytes }
end

def parse_stk(line)
    if !(line =~ /^    out=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid stk line (length mismatch): #{line}"
    end

    return bytes
end

def parse_dhkey_check(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: dhkey check; conn=\d+ value=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid dhkey_check line (length mismatch): #{line}"
    end

    return { :value => bytes }
end

def parse_ltk(line)
    if !(line =~ /persisting.+ltk=([^ ]+)/)
        return nil
    end

    bytes = $1.split(":")
    if bytes.size != 16
        raise "invalid ltk line (length mismatch): exp=16 got=#{bytes.size} " +
              "line=#{line}"
    end

    return bytes
end

def parse_enc_info(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: enc info; conn=\d+ ltk=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid enc info line (length mismatch): #{line}"
    end

    return { :ltk => bytes }
end

def parse_master_id(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: master id; conn=\d+ ediv=(.+) rand=(.+)/)
        return nil
    end

    return {
        :ediv => s_to_i($1),
        :rand => s_to_i($2),
    }
end

def parse_id_info(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: id info; conn=\d+ irk=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid id info line (length mismatch): #{line}"
    end

    return { :irk => bytes }
end

def parse_id_addr_info(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: id addr info; conn=\d+ addr_type=(\d+) addr=(.+)/)
        return nil
    end

    bytes = addr_string_to_bytes($2)
    if bytes.size != 6
        raise "invalid id addr info line (length mismatch): #{line}"
    end

    return {
        :addr_type => s_to_i($1),
        :addr => bytes,
    }
end

def parse_sign_info(line, is_tx)
    prefix = txrx_prefix(is_tx)
    if !(line =~ /#{prefix}ed sm command: sign info; conn=\d+ sig_key=(.+)/)
        return nil
    end

    bytes = token_string_to_bytes($1)
    if bytes.size != 16
        raise "invalid sign info line (length mismatch): #{line}"
    end

    return {
        :sig_key => bytes,
    }
end

def parse_passkey_info(line)
    passkey_info = {}

    case line
    when /passkey action event; action=4 numcmp=(\d+)/
        passkey_info[:action] = 4
        passkey_info[:numcmp] = $1.to_i(10)
    when /^b passkey conn=\d+ action=1 oob=(\S+)/
        passkey_info[:action] = 1
        passkey_info[:oob] = token_string_to_bytes($1, ':')
    when /^b passkey conn=\d+ action=2 key=(\d+)/
        passkey_info[:action] = 2
        passkey_info[:key] = $1.to_i(10)
    when /b passkey conn=\d+ action=3 key=(\d+)/
        passkey_info[:action] = 3
        passkey_info[:key] = $1.to_i(10)
    else
        return nil
    end

    return passkey_info
end

def parse_addrs(line)
    if !(line =~ /our_ota_addr_type=(\d+) our_ota_addr=(\S+) our_id_addr_type=(\d+) our_id_addr=(\S+) peer_ota_addr_type=(\d+) peer_ota_addr=(\S+) peer_id_addr_type=(\d+) peer_id_addr=(\S+)/)
        return nil
    end

    our_ota_addr_bytes = addr_string_to_bytes($2)
    our_id_addr_bytes = addr_string_to_bytes($4)
    peer_ota_addr_bytes = addr_string_to_bytes($6)
    peer_id_addr_bytes = addr_string_to_bytes($8)

    if $ctxt[:we_are_init]
        init_id_bytes = our_id_addr_bytes
        init_ota_bytes = our_ota_addr_bytes
        resp_id_bytes = peer_id_addr_bytes
        resp_ota_bytes = peer_ota_addr_bytes
        init_addr_type = s_to_i($1)
        resp_addr_type = s_to_i($5)
    else
        init_id_bytes = peer_id_addr_bytes
        init_ota_bytes = peer_ota_addr_bytes
        resp_id_bytes = our_id_addr_bytes
        resp_ota_bytes = our_ota_addr_bytes
        init_addr_type = s_to_i($5)
        resp_addr_type = s_to_i($1)
    end

    if init_id_bytes == init_ota_bytes
        init_ota_bytes = [0] * 6
    end
    if resp_id_bytes == resp_ota_bytes
        resp_ota_bytes = [0] * 6
    end

    return {
        :init_type => init_addr_type,
        :resp_type => resp_addr_type,
        :init_id_addr => init_id_bytes,
        :resp_id_addr => resp_id_bytes,
        :init_rpa => init_ota_bytes,
        :resp_rpa => resp_ota_bytes,
    }
end

def detect_initiator(lines)
    lines.each do |line|
        if line =~ /txed sm command: pair req/
            $ctxt[:we_are_init] = true
        elsif line =~ /txed sm command: pair rsp/
            $ctxt[:we_are_init] = false
        end
    end

    if $ctxt[:we_are_init] == nil
        raise "could not detect which peer is the initiator"
    end
end

def pair_cmd_to_s(cmd, is_req)
    suffix = reqrsp_s(is_req)
    return <<-eos
        .pair_#{suffix} = {
            .io_cap = #{to_hex_s(cmd[:io_cap])},
            .oob_data_flag = #{to_hex_s(cmd[:oob_data_flag])},
            .authreq = #{to_hex_s(cmd[:authreq])},
            .max_enc_key_size = #{to_hex_s(cmd[:max_enc_key_size])},
            .init_key_dist = #{to_hex_s(cmd[:init_key_dist])},
            .resp_key_dist = #{to_hex_s(cmd[:resp_key_dist])},
        },
    eos
end

def privkey_to_s(privkey)
    return bytes_to_arr(privkey, "our_priv_key", 8)
end

def public_key_to_s(public_key, is_req)
    suffix = reqrsp_s(is_req)
    return <<-eos
        .public_key_#{suffix} = {
#{bytes_to_arr(public_key[:x], "x", 12)}
#{bytes_to_arr(public_key[:y], "y", 12)}
        },
    eos
end

def confirm_to_s(confirm, is_req, idx)
    return <<-eos
        .confirm_#{reqrsp_s(is_req)}[#{idx}] = {
#{bytes_to_arr(confirm[:value], "value", 12)}
        },
    eos
end

def random_to_s(random, is_req, idx)
    return <<-eos
        .random_#{reqrsp_s(is_req)}[#{idx}] = {
#{bytes_to_arr(random[:value], "value", 12)}
        },
    eos
end

def ltk_to_s(ltk)
    return bytes_to_arr(ltk, "ltk", 8)
end

def stk_to_s(stk)
    return bytes_to_arr(stk, "stk", 8)
end

def enc_info_to_s(id_info, is_req)
    return <<-eos
        .enc_info_#{reqrsp_s(is_req)} = {
#{bytes_to_arr(id_info[:ltk], "ltk", 12)}
        },
    eos
end

def master_id_to_s(master_id, is_req)
    return <<-eos
        .master_id_#{reqrsp_s(is_req)} = {
            .ediv = 0x#{master_id[:ediv].to_s(16)},
            .rand_val = 0x#{master_id[:rand].to_s(16)},
        },
    eos
end

def id_info_to_s(id_info, is_req)
    return <<-eos
        .id_info_#{reqrsp_s(is_req)} = {
#{bytes_to_arr(id_info[:irk], "irk", 12)}
        },
    eos
end

def id_addr_info_to_s(id_addr_info, is_req)
    return <<-eos
        .id_addr_info_#{reqrsp_s(is_req)} = {
            .addr_type = #{id_addr_info[:addr_type]},
#{bytes_to_arr(id_addr_info[:addr], "bd_addr", 12)}
        },
    eos
end

def sign_info_to_s(sign_info, is_req)
    return <<-eos
        .sign_info_#{reqrsp_s(is_req)} = {
#{bytes_to_arr(sign_info[:sig_key], "sig_key", 12)}
        },
    eos
end

def passkey_info_fill(passkey_info)
    case passkey_info[:action]
    # None
    when 0
        $ctxt[:pair_alg] = 0
        $ctxt[:authenticated] = false

    # OOB
    when 1
        $ctxt[:pair_alg] = 2
        $ctxt[:authenticated] = true

    # Input
    when 2
        $ctxt[:pair_alg] = 1
        $ctxt[:authenticated] = true

    # Display
    when 3
        $ctxt[:pair_alg] = 1
        $ctxt[:authenticated] = true

    # Numeric comparison
    when 4
        $ctxt[:pair_alg] = 3
        $ctxt[:authenticated] = true

    else
        raise "invalid MITM action: #{passkey_info[:action]}"
    end
end

def passkey_info_s
    passkey_info = $ctxt[:passkey_info]
    action_str = $ACTION_STRINGS[passkey_info[:action]]

    result = <<-eos
        .pair_alg = #{$ctxt[:pair_alg]},
        .authenticated = #{$ctxt[:authenticated]},
        .passkey_info = {
            .passkey = {
                .action = #{action_str},
    eos

    if passkey_info[:key] != nil
        result << <<-eos
                .passkey = #{passkey_info[:key].to_i},
        eos
    end
    if passkey_info[:oob] != nil
        result << <<-eos
#{bytes_to_arr(passkey_info[:oob], "oob", 16)}
        eos
    end
    if passkey_info[:numcmp] != nil
        result << <<-eos
                .numcmp_accept = 1,
        eos
    end

    result << <<-eos
            },
    eos

    if passkey_info[:numcmp] != nil
        result << <<-eos
            .exp_numcmp = #{passkey_info[:numcmp].to_i},
        eos
    end

    result << <<-eos
        },
    eos
end

def addrs_to_s(addrs)
    s = ''

    init_type = addrs[:init_type]
    resp_type = addrs[:resp_type]

    if init_type != 0
        s += "        .init_addr_type = #{$ADDR_TYPE_STRINGS[init_type]},\n"
    end
    s += bytes_to_arr(addrs[:init_id_addr], "init_id_addr", 8) + "\n"
    if init_type >= 2
        s += bytes_to_arr(addrs[:init_rpa], "init_rpa", 8) + "\n"
    end

    if resp_type != 0
        s += "        .resp_addr_type = #{$ADDR_TYPE_STRINGS[resp_type]},\n"
    end
    s += bytes_to_arr(addrs[:resp_id_addr], "resp_id_addr", 8) + "\n"
    if resp_type >= 2
        s += bytes_to_arr(addrs[:resp_rpa], "resp_rpa", 8) + "\n"
    end

    return s
end

def dhkey_check_to_s(dhkey_check, is_req)
    return <<-eos
        .dhkey_check_#{reqrsp_s(is_req)} = {
#{bytes_to_arr(dhkey_check[:value], "value", 12)}
        },
    eos
end

def extract_one(lines, ignore_prev = false)
    if ignore_prev
        start = 0
    else
        start = $prev_idx
    end

    (start...lines.size).each do |idx|
        line = lines[idx]
        result = yield(line)
        if result != nil
            if !ignore_prev
                $prev_idx = idx
            end
            return result
        end
    end

    return nil
end

def extract_pair_req(lines)
    return extract_one(lines) {|line| parse_pair_cmd(line, true)}
end

def extract_pair_rsp(lines)
    return extract_one(lines) {|line| parse_pair_cmd(line, false)}
end

def extract_privkey(lines)
    return extract_one(lines) {|line| parse_privkey(line)}
end

def extract_public_key_req(lines)
    return extract_one(lines) do |line|
        parse_public_key(line, $ctxt[:we_are_init])
    end
end

def extract_public_key_rsp(lines)
    return extract_one(lines) do |line|
        parse_public_key(line, !$ctxt[:we_are_init])
    end
end

def extract_confirm_req(lines)
    return extract_one(lines) do |line|
        parse_confirm(line, $ctxt[:we_are_init])
    end
end

def extract_confirm_rsp(lines)
    return extract_one(lines) do |line|
        parse_confirm(line, !$ctxt[:we_are_init])
    end
end

def extract_random_req(lines)
    return extract_one(lines) do |line|
        parse_random(line, $ctxt[:we_are_init])
    end
end

def extract_random_rsp(lines)
    return extract_one(lines) do |line|
        parse_random(line, !$ctxt[:we_are_init])
    end
end

def extract_confirm_random(lines)
    confirm_reqs = []
    confirm_rsps = []
    random_reqs = []
    random_rsps = []

    idx = 0
    loop do
        confirm_req = extract_confirm_req(lines)
        if confirm_req != nil
            confirm_reqs << confirm_req
        end

        confirm_rsp = extract_confirm_rsp(lines)
        break if confirm_rsp == nil
        if idx >= 20
            raise "too many confirm rsps (>20)"
        end
        confirm_rsps << confirm_rsp

        random_req = extract_random_req(lines)
        break if random_req == nil
        random_reqs << random_req

        random_rsp = extract_random_rsp(lines)
        break if random_rsp == nil
        random_rsps << random_rsp

        idx += 1
    end

    return confirm_reqs, confirm_rsps, random_reqs, random_rsps
end

def extract_stk(lines)
    return extract_one(lines, true) do |line|
        parse_stk(line)
    end
end

def extract_dhkey_check_req(lines)
    return extract_one(lines) do |line|
        parse_dhkey_check(line, $ctxt[:we_are_init])
    end
end

def extract_dhkey_check_rsp(lines)
    return extract_one(lines) do |line|
        parse_dhkey_check(line, !$ctxt[:we_are_init])
    end
end

def extract_enc_info_req(lines)
    return extract_one(lines) do |line|
        parse_enc_info(line, !$ctxt[:we_are_init])
    end
end

def extract_enc_info_rsp(lines)
    return extract_one(lines) do |line|
        parse_enc_info(line, $ctxt[:we_are_init])
    end
end

def extract_master_id_req(lines)
    return extract_one(lines) do |line|
        parse_master_id(line, !$ctxt[:we_are_init])
    end
end

def extract_master_id_rsp(lines)
    return extract_one(lines) do |line|
        parse_master_id(line, $ctxt[:we_are_init])
    end
end

def extract_id_info_req(lines)
    return extract_one(lines) do |line|
        parse_id_info(line, !$ctxt[:we_are_init])
    end
end

def extract_id_info_rsp(lines)
    return extract_one(lines) do |line|
        parse_id_info(line, $ctxt[:we_are_init])
    end
end

def extract_id_addr_info_req(lines)
    return extract_one(lines) do |line|
        parse_id_addr_info(line, !$ctxt[:we_are_init])
    end
end

def extract_id_addr_info_rsp(lines)
    return extract_one(lines) do |line|
        parse_id_addr_info(line, $ctxt[:we_are_init])
    end
end

def extract_sign_info_req(lines)
    return extract_one(lines) do |line|
        parse_sign_info(line, !$ctxt[:we_are_init])
    end
end

def extract_sign_info_rsp(lines)
    return extract_one(lines) do |line|
        parse_sign_info(line, $ctxt[:we_are_init])
    end
end

def extract_ltk(lines)
    return extract_one(lines) do |line|
        parse_ltk(line)
    end
end

def extract_passkey_info(lines)
    passkey_info = extract_one(lines, true) do |line|
        parse_passkey_info(line)
    end

    if passkey_info == nil
        passkey_info = { :action => 0 }
    end

    return passkey_info
end

def extract_addrs(lines)
    return extract_one(lines) do |line|
        parse_addrs(line)
    end
end


lines = STDIN.readlines

detect_initiator(lines)
$ctxt[:pair_req] = extract_pair_req(lines)
$ctxt[:pair_rsp] = extract_pair_rsp(lines)
$ctxt[:privkey] = extract_privkey(lines)
$ctxt[:public_key_req] = extract_public_key_req(lines)
$ctxt[:public_key_rsp] = extract_public_key_rsp(lines)
$ctxt[:confirm_reqs], $ctxt[:confirm_rsps], $ctxt[:random_reqs], $ctxt[:random_rsps] = extract_confirm_random(lines)
$ctxt[:passkey_info] = extract_passkey_info(lines)
$ctxt[:dhkey_check_req] = extract_dhkey_check_req(lines)
$ctxt[:dhkey_check_rsp] = extract_dhkey_check_rsp(lines)
$ctxt[:enc_info_req] = extract_enc_info_req(lines)
$ctxt[:master_id_req] = extract_master_id_req(lines)
$ctxt[:id_info_req] = extract_id_info_req(lines)
$ctxt[:id_addr_info_req] = extract_id_addr_info_req(lines)
$ctxt[:sign_info_req] = extract_sign_info_req(lines)
$ctxt[:enc_info_rsp] = extract_enc_info_rsp(lines)
$ctxt[:master_id_rsp] = extract_master_id_rsp(lines)
$ctxt[:id_info_rsp] = extract_id_info_rsp(lines)
$ctxt[:id_addr_info_rsp] = extract_id_addr_info_rsp(lines)
$ctxt[:sign_info_rsp] = extract_sign_info_rsp(lines)
$ctxt[:addrs] = extract_addrs(lines)
$ctxt[:ltk] = extract_ltk(lines)
$ctxt[:stk] = extract_stk(lines)

expected_confirm_rsps = nil
expected_random_reqs = nil
expected_random_rsps = nil
if $ctxt[:confirm_reqs].size == 0
    expected_confirm_rsps = 1
    expected_random_reqs = 1
    expected_random_rsps = 1
else
    expected_confirm_rsps = $ctxt[:confirm_reqs].size
    expected_random_reqs = $ctxt[:random_reqs].size
    expected_random_rsps = $ctxt[:random_rsps].size
end

if $ctxt[:confirm_rsps].size != expected_confirm_rsps
    raise "wrong number of confirm responses " +
          "(exp=#{expected_confirm_rsps}; got=#{$ctxt[:confirm_rsps].size}"
end

if $ctxt[:random_reqs].size != expected_random_reqs
    raise "wrong number of random requests " +
          "(exp=#{expected_random_reqs}; got=#{$ctxt[:random_reqs].size}"
end

if $ctxt[:random_rsps].size != expected_random_rsps
    raise "wrong number of random responses " +
          "(exp=#{expected_random_rsps}; got=#{$ctxt[:random_rsps].size}"
end

passkey_info_fill($ctxt[:passkey_info])

$ctxt[:sc] = $ctxt[:public_key_req] != nil
$ctxt[:bonding] = $ctxt[:pair_req][:authreq] & 1 == 1 &&
                  $ctxt[:pair_rsp][:authreq] & 1 == 1

puts test_case_comment()
puts <<-eos
TEST_CASE(#{test_case_name()})
{
    struct ble_sm_test_params params;

    params = (struct ble_sm_test_params) {
eos

puts addrs_to_s($ctxt[:addrs])

puts pair_cmd_to_s($ctxt[:pair_req], true)
puts pair_cmd_to_s($ctxt[:pair_rsp], false)

if $ctxt[:sc]
    puts privkey_to_s($ctxt[:privkey])
    puts public_key_to_s($ctxt[:public_key_req], true)
    puts public_key_to_s($ctxt[:public_key_req], false)
end

$ctxt[:confirm_rsps].size.times do |i|
    confirm_req = $ctxt[:confirm_reqs][i]
    confirm_rsp = $ctxt[:confirm_rsps][i]
    random_req = $ctxt[:random_reqs][i]
    random_rsp = $ctxt[:random_rsps][i]

    if confirm_req != nil
        puts confirm_to_s(confirm_req, true, i)
    end

    puts confirm_to_s(confirm_rsp, false, i)
    puts random_to_s(random_req, true, i)
    puts random_to_s(random_rsp, false, i)
end

if $ctxt[:sc]
    puts dhkey_check_to_s($ctxt[:dhkey_check_req], true)
    puts dhkey_check_to_s($ctxt[:dhkey_check_rsp], false)
end

if $ctxt[:enc_info_req] != nil
    puts enc_info_to_s($ctxt[:enc_info_req], true)
end
if $ctxt[:master_id_req] != nil
    puts master_id_to_s($ctxt[:master_id_req], true)
end
if $ctxt[:id_info_req] != nil
    puts id_info_to_s($ctxt[:id_info_req], true)
end
if $ctxt[:id_addr_info_req] != nil
    puts id_addr_info_to_s($ctxt[:id_addr_info_req], true)
end
if $ctxt[:sign_info_req] != nil
    puts sign_info_to_s($ctxt[:sign_info_req], true)
end
if $ctxt[:enc_info_rsp] != nil
    puts enc_info_to_s($ctxt[:enc_info_rsp], false)
end
if $ctxt[:master_id_rsp] != nil
    puts master_id_to_s($ctxt[:master_id_rsp], false)
end
if $ctxt[:id_info_rsp] != nil
    puts id_info_to_s($ctxt[:id_info_rsp], false)
end
if $ctxt[:id_addr_info_rsp] != nil
    puts id_addr_info_to_s($ctxt[:id_addr_info_rsp], false)
end
if $ctxt[:sign_info_rsp] != nil
    puts sign_info_to_s($ctxt[:sign_info_rsp], false)
end
if $ctxt[:sc]
    puts ltk_to_s($ctxt[:ltk])
else
    puts stk_to_s($ctxt[:stk])
end
puts passkey_info_s()

puts '    };'

if $ctxt[:sc]
    if $ctxt[:we_are_init]
        puts '    ble_sm_test_util_us_sc_good(&params);'
    else
        puts '    ble_sm_test_util_peer_sc_good(&params);'
    end
else
    if $ctxt[:we_are_init]
        puts '    ble_sm_test_util_us_lgcy_good(&params);'
    else
        puts '    ble_sm_test_util_peer_lgcy_good(&params);'
    end
end
puts '}'