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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 64 70 2d 32 2e 33 2f 00 | 00 00 00 00 00 00 00 00 |dp-2.3/.|........|
|00000010| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000001e0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|000001f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000200| 64 70 2d 32 2e 33 2f 64 | 70 2f 00 00 00 00 00 00 |dp-2.3/d|p/......|
|00000210| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000220| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000230| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000260| 00 00 00 00 20 20 32 37 | 35 35 20 00 20 20 32 33 |....  27|55 .  23|
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|00000280| 20 20 20 20 20 20 30 20 | 20 35 33 34 34 37 33 31 |      0 | 5344731|
|00000290| 35 31 30 20 20 20 35 34 | 30 37 00 20 00 00 00 00 |510   54|07. ....|
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|00000310| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000003f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000400| 64 70 2d 32 2e 33 2f 64 | 70 2f 66 73 6d 2e 63 00 |dp-2.3/d|p/fsm.c.|
|00000410| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000420| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000430| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00000490| 35 36 33 20 20 20 36 34 | 33 37 00 20 00 00 00 00 |563   64|37. ....|
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|000005c0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|000005f0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00000600| 2f 2a 0a 20 2a 20 66 73 | 6d 2e 63 20 2d 20 7b 4c |/*. * fs|m.c - {L|
|00000610| 69 6e 6b 2c 20 49 50 7d | 20 43 6f 6e 74 72 6f 6c |ink, IP}| Control|
|00000620| 20 50 72 6f 74 6f 63 6f | 6c 20 46 69 6e 69 74 65 | Protoco|l Finite|
|00000630| 20 53 74 61 74 65 20 4d | 61 63 68 69 6e 65 2e 0a | State M|achine..|
|00000640| 20 2a 0a 20 2a 20 43 6f | 70 79 72 69 67 68 74 20 | *. * Co|pyright |
|00000650| 28 63 29 20 31 39 38 39 | 20 43 61 72 6e 65 67 69 |(c) 1989| Carnegi|
|00000660| 65 20 4d 65 6c 6c 6f 6e | 20 55 6e 69 76 65 72 73 |e Mellon| Univers|
|00000670| 69 74 79 2e 0a 20 2a 20 | 41 6c 6c 20 72 69 67 68 |ity.. * |All righ|
|00000680| 74 73 20 72 65 73 65 72 | 76 65 64 2e 0a 20 2a 0a |ts reser|ved.. *.|
|00000690| 20 2a 20 52 65 64 69 73 | 74 72 69 62 75 74 69 6f | * Redis|tributio|
|000006a0| 6e 20 61 6e 64 20 75 73 | 65 20 69 6e 20 73 6f 75 |n and us|e in sou|
|000006b0| 72 63 65 20 61 6e 64 20 | 62 69 6e 61 72 79 20 66 |rce and |binary f|
|000006c0| 6f 72 6d 73 20 61 72 65 | 20 70 65 72 6d 69 74 74 |orms are| permitt|
|000006d0| 65 64 0a 20 2a 20 70 72 | 6f 76 69 64 65 64 20 74 |ed. * pr|ovided t|
|000006e0| 68 61 74 20 74 68 65 20 | 61 62 6f 76 65 20 63 6f |hat the |above co|
|000006f0| 70 79 72 69 67 68 74 20 | 6e 6f 74 69 63 65 20 61 |pyright |notice a|
|00000700| 6e 64 20 74 68 69 73 20 | 70 61 72 61 67 72 61 70 |nd this |paragrap|
|00000710| 68 20 61 72 65 0a 20 2a | 20 64 75 70 6c 69 63 61 |h are. *| duplica|
|00000720| 74 65 64 20 69 6e 20 61 | 6c 6c 20 73 75 63 68 20 |ted in a|ll such |
|00000730| 66 6f 72 6d 73 20 61 6e | 64 20 74 68 61 74 20 61 |forms an|d that a|
|00000740| 6e 79 20 64 6f 63 75 6d | 65 6e 74 61 74 69 6f 6e |ny docum|entation|
|00000750| 2c 0a 20 2a 20 61 64 76 | 65 72 74 69 73 69 6e 67 |,. * adv|ertising|
|00000760| 20 6d 61 74 65 72 69 61 | 6c 73 2c 20 61 6e 64 20 | materia|ls, and |
|00000770| 6f 74 68 65 72 20 6d 61 | 74 65 72 69 61 6c 73 20 |other ma|terials |
|00000780| 72 65 6c 61 74 65 64 20 | 74 6f 20 73 75 63 68 0a |related |to such.|
|00000790| 20 2a 20 64 69 73 74 72 | 69 62 75 74 69 6f 6e 20 | * distr|ibution |
|000007a0| 61 6e 64 20 75 73 65 20 | 61 63 6b 6e 6f 77 6c 65 |and use |acknowle|
|000007b0| 64 67 65 20 74 68 61 74 | 20 74 68 65 20 73 6f 66 |dge that| the sof|
|000007c0| 74 77 61 72 65 20 77 61 | 73 20 64 65 76 65 6c 6f |tware wa|s develo|
|000007d0| 70 65 64 0a 20 2a 20 62 | 79 20 43 61 72 6e 65 67 |ped. * b|y Carneg|
|000007e0| 69 65 20 4d 65 6c 6c 6f | 6e 20 55 6e 69 76 65 72 |ie Mello|n Univer|
|000007f0| 73 69 74 79 2e 20 20 54 | 68 65 20 6e 61 6d 65 20 |sity.  T|he name |
|00000800| 6f 66 20 74 68 65 0a 20 | 2a 20 55 6e 69 76 65 72 |of the. |* Univer|
|00000810| 73 69 74 79 20 6d 61 79 | 20 6e 6f 74 20 62 65 20 |sity may| not be |
|00000820| 75 73 65 64 20 74 6f 20 | 65 6e 64 6f 72 73 65 20 |used to |endorse |
|00000830| 6f 72 20 70 72 6f 6d 6f | 74 65 20 70 72 6f 64 75 |or promo|te produ|
|00000840| 63 74 73 20 64 65 72 69 | 76 65 64 0a 20 2a 20 66 |cts deri|ved. * f|
|00000850| 72 6f 6d 20 74 68 69 73 | 20 73 6f 66 74 77 61 72 |rom this| softwar|
|00000860| 65 20 77 69 74 68 6f 75 | 74 20 73 70 65 63 69 66 |e withou|t specif|
|00000870| 69 63 20 70 72 69 6f 72 | 20 77 72 69 74 74 65 6e |ic prior| written|
|00000880| 20 70 65 72 6d 69 73 73 | 69 6f 6e 2e 0a 20 2a 20 | permiss|ion.. * |
|00000890| 54 48 49 53 20 53 4f 46 | 54 57 41 52 45 20 49 53 |THIS SOF|TWARE IS|
|000008a0| 20 50 52 4f 56 49 44 45 | 44 20 60 60 41 53 20 49 | PROVIDE|D ``AS I|
|000008b0| 53 27 27 20 41 4e 44 20 | 57 49 54 48 4f 55 54 20 |S'' AND |WITHOUT |
|000008c0| 41 4e 59 20 45 58 50 52 | 45 53 53 20 4f 52 0a 20 |ANY EXPR|ESS OR. |
|000008d0| 2a 20 49 4d 50 4c 49 45 | 44 20 57 41 52 52 41 4e |* IMPLIE|D WARRAN|
|000008e0| 54 49 45 53 2c 20 49 4e | 43 4c 55 44 49 4e 47 2c |TIES, IN|CLUDING,|
|000008f0| 20 57 49 54 48 4f 55 54 | 20 4c 49 4d 49 54 41 54 | WITHOUT| LIMITAT|
|00000900| 49 4f 4e 2c 20 54 48 45 | 20 49 4d 50 4c 49 45 44 |ION, THE| IMPLIED|
|00000910| 0a 20 2a 20 57 41 52 52 | 41 4e 54 49 45 53 20 4f |. * WARR|ANTIES O|
|00000920| 46 20 4d 45 52 43 48 41 | 4e 54 49 42 49 4c 49 54 |F MERCHA|NTIBILIT|
|00000930| 59 20 41 4e 44 20 46 49 | 54 4e 45 53 53 20 46 4f |Y AND FI|TNESS FO|
|00000940| 52 20 41 20 50 41 52 54 | 49 43 55 4c 41 52 20 50 |R A PART|ICULAR P|
|00000950| 55 52 50 4f 53 45 2e 0a | 20 2a 2f 0a 0a 2f 2a 0a |URPOSE..| */../*.|
|00000960| 20 2a 20 54 4f 44 4f 3a | 0a 20 2a 20 4d 65 63 68 | * TODO:|. * Mech|
|00000970| 61 6e 69 73 6d 20 74 6f | 20 65 78 69 74 28 29 20 |anism to| exit() |
|00000980| 61 6e 64 2f 6f 72 20 64 | 72 6f 70 20 44 54 52 2e |and/or d|rop DTR.|
|00000990| 0a 20 2a 20 48 6f 6c 64 | 2d 64 6f 77 6e 20 6f 6e |. * Hold|-down on|
|000009a0| 20 6f 70 65 6e 3f 0a 20 | 2a 20 52 61 6e 64 6f 6d | open?. |* Random|
|000009b0| 69 7a 65 20 66 73 6d 20 | 69 64 20 6f 6e 20 6c 69 |ize fsm |id on li|
|000009c0| 6e 6b 2f 69 6e 69 74 2e | 0a 20 2a 20 44 65 61 6c |nk/init.|. * Deal|
|000009d0| 20 77 69 74 68 20 76 61 | 72 69 61 62 6c 65 20 6f | with va|riable o|
|000009e0| 75 74 67 6f 69 6e 67 20 | 4d 54 55 2e 0a 20 2a 2f |utgoing |MTU.. */|
|000009f0| 0a 0a 23 69 6e 63 6c 75 | 64 65 20 3c 73 74 64 69 |..#inclu|de <stdi|
|00000a00| 6f 2e 68 3e 0a 23 69 6e | 63 6c 75 64 65 20 3c 73 |o.h>.#in|clude <s|
|00000a10| 79 73 2f 74 79 70 65 73 | 2e 68 3e 0a 23 69 6e 63 |ys/types|.h>.#inc|
|00000a20| 6c 75 64 65 20 3c 6d 61 | 6c 6c 6f 63 2e 68 3e 0a |lude <ma|lloc.h>.|
|00000a30| 23 69 6e 63 6c 75 64 65 | 20 3c 73 79 73 6c 6f 67 |#include| <syslog|
|00000a40| 2e 68 3e 0a 23 69 6e 63 | 6c 75 64 65 09 3c 73 79 |.h>.#inc|lude.<sy|
|00000a50| 73 2f 73 74 72 65 61 6d | 2e 68 3e 0a 23 69 6e 63 |s/stream|.h>.#inc|
|00000a60| 6c 75 64 65 09 3c 73 79 | 73 2f 73 6f 63 6b 65 74 |lude.<sy|s/socket|
|00000a70| 2e 68 3e 0a 23 69 6e 63 | 6c 75 64 65 09 3c 6e 65 |.h>.#inc|lude.<ne|
|00000a80| 74 2f 69 66 2e 68 3e 0a | 23 69 6e 63 6c 75 64 65 |t/if.h>.|#include|
|00000a90| 20 22 70 70 70 2e 68 22 | 0a 23 69 6e 63 6c 75 64 | "ppp.h"|.#includ|
|00000aa0| 65 20 22 66 73 6d 2e 68 | 22 0a 0a 0a 73 74 61 74 |e "fsm.h|"...stat|
|00000ab0| 69 63 20 76 6f 69 64 20 | 66 73 6d 5f 74 69 6d 65 |ic void |fsm_time|
|00000ac0| 6f 75 74 20 5f 5f 41 52 | 47 53 28 28 63 61 64 64 |out __AR|GS((cadd|
|00000ad0| 72 5f 74 29 29 3b 0a 73 | 74 61 74 69 63 20 76 6f |r_t));.s|tatic vo|
|00000ae0| 69 64 20 66 73 6d 5f 72 | 63 6f 6e 66 61 63 6b 20 |id fsm_r|confack |
|00000af0| 5f 5f 41 52 47 53 28 28 | 66 73 6d 20 2a 2c 20 75 |__ARGS((|fsm *, u|
|00000b00| 5f 63 68 61 72 20 2a 2c | 20 75 5f 63 68 61 72 2c |_char *,| u_char,|
|00000b10| 20 69 6e 74 29 29 3b 0a | 73 74 61 74 69 63 20 76 | int));.|static v|
|00000b20| 6f 69 64 20 66 73 6d 5f | 72 63 6f 6e 66 6e 61 6b |oid fsm_|rconfnak|
|00000b30| 20 5f 5f 41 52 47 53 28 | 28 66 73 6d 20 2a 2c 20 | __ARGS(|(fsm *, |
|00000b40| 75 5f 63 68 61 72 20 2a | 2c 20 75 5f 63 68 61 72 |u_char *|, u_char|
|00000b50| 2c 20 69 6e 74 29 29 3b | 0a 73 74 61 74 69 63 20 |, int));|.static |
|00000b60| 76 6f 69 64 20 66 73 6d | 5f 72 63 6f 6e 66 72 65 |void fsm|_rconfre|
|00000b70| 6a 20 5f 5f 41 52 47 53 | 28 28 66 73 6d 20 2a 2c |j __ARGS|((fsm *,|
|00000b80| 20 75 5f 63 68 61 72 20 | 2a 2c 20 75 5f 63 68 61 | u_char |*, u_cha|
|00000b90| 72 2c 20 69 6e 74 29 29 | 3b 0a 73 74 61 74 69 63 |r, int))|;.static|
|00000ba0| 20 76 6f 69 64 20 66 73 | 6d 5f 72 74 65 72 6d 72 | void fs|m_rtermr|
|00000bb0| 65 71 20 5f 5f 41 52 47 | 53 28 28 66 73 6d 20 2a |eq __ARG|S((fsm *|
|00000bc0| 2c 20 75 5f 63 68 61 72 | 29 29 3b 0a 73 74 61 74 |, u_char|));.stat|
|00000bd0| 69 63 20 76 6f 69 64 20 | 66 73 6d 5f 72 74 65 72 |ic void |fsm_rter|
|00000be0| 6d 61 63 6b 20 5f 5f 41 | 52 47 53 28 28 66 73 6d |mack __A|RGS((fsm|
|00000bf0| 20 2a 29 29 3b 0a 73 74 | 61 74 69 63 20 76 6f 69 | *));.st|atic voi|
|00000c00| 64 20 66 73 6d 5f 72 63 | 6f 64 65 72 65 6a 20 5f |d fsm_rc|oderej _|
|00000c10| 5f 41 52 47 53 28 28 66 | 73 6d 20 2a 2c 20 75 5f |_ARGS((f|sm *, u_|
|00000c20| 63 68 61 72 20 2a 2c 20 | 69 6e 74 29 29 3b 0a 73 |char *, |int));.s|
|00000c30| 74 61 74 69 63 20 76 6f | 69 64 20 66 73 6d 5f 72 |tatic vo|id fsm_r|
|00000c40| 70 72 6f 74 72 65 6a 20 | 5f 5f 41 52 47 53 28 28 |protrej |__ARGS((|
|00000c50| 66 73 6d 20 2a 2c 20 75 | 5f 63 68 61 72 20 2a 2c |fsm *, u|_char *,|
|00000c60| 20 69 6e 74 29 29 3b 0a | 73 74 61 74 69 63 20 76 | int));.|static v|
|00000c70| 6f 69 64 20 66 73 6d 5f | 73 63 6f 6e 66 72 65 71 |oid fsm_|sconfreq|
|00000c80| 20 5f 5f 41 52 47 53 28 | 28 66 73 6d 20 2a 29 29 | __ARGS(|(fsm *))|
|00000c90| 3b 0a 0a 0a 2f 2a 0a 20 | 2a 20 66 73 6d 5f 69 6e |;.../*. |* fsm_in|
|00000ca0| 69 74 20 2d 20 49 6e 69 | 74 69 61 6c 69 7a 65 20 |it - Ini|tialize |
|00000cb0| 66 73 6d 2e 0a 20 2a 0a | 20 2a 20 49 6e 69 74 69 |fsm.. *.| * Initi|
|00000cc0| 61 6c 69 7a 65 20 66 73 | 6d 20 73 74 61 74 65 2e |alize fs|m state.|
|00000cd0| 0a 20 2a 2f 0a 76 6f 69 | 64 0a 20 20 66 73 6d 5f |. */.voi|d.  fsm_|
|00000ce0| 69 6e 69 74 28 66 29 0a | 66 73 6d 20 2a 66 3b 0a |init(f).|fsm *f;.|
|00000cf0| 7b 0a 20 20 20 20 66 2d | 3e 73 74 61 74 65 20 3d |{.    f-|>state =|
|00000d00| 20 43 4c 4f 53 45 44 3b | 0a 20 20 20 20 66 2d 3e | CLOSED;|.    f->|
|00000d10| 66 6c 61 67 73 20 3d 20 | 30 3b 0a 20 20 20 20 66 |flags = |0;.    f|
|00000d20| 2d 3e 69 64 20 3d 20 30 | 3b 09 09 09 09 2f 2a 20 |->id = 0|;..../* |
|00000d30| 58 58 58 20 53 74 61 72 | 74 20 77 69 74 68 20 72 |XXX Star|t with r|
|00000d40| 61 6e 64 6f 6d 20 69 64 | 3f 20 2a 2f 0a 7d 0a 0a |andom id|? */.}..|
|00000d50| 0a 2f 2a 0a 20 2a 20 66 | 73 6d 5f 61 63 74 69 76 |./*. * f|sm_activ|
|00000d60| 65 6f 70 65 6e 20 2d 20 | 41 63 74 69 76 65 6c 79 |eopen - |Actively|
|00000d70| 20 6f 70 65 6e 20 63 6f | 6e 6e 65 63 74 69 6f 6e | open co|nnection|
|00000d80| 2e 0a 20 2a 0a 20 2a 20 | 53 65 74 20 6e 65 77 20 |.. *. * |Set new |
|00000d90| 73 74 61 74 65 2c 20 72 | 65 73 65 74 20 64 65 73 |state, r|eset des|
|00000da0| 69 72 65 64 20 6f 70 74 | 69 6f 6e 73 20 61 6e 64 |ired opt|ions and|
|00000db0| 20 73 65 6e 64 20 72 65 | 71 75 65 73 74 73 2e 0a | send re|quests..|
|00000dc0| 20 2a 2f 0a 76 6f 69 64 | 0a 20 20 66 73 6d 5f 61 | */.void|.  fsm_a|
|00000dd0| 63 74 69 76 65 6f 70 65 | 6e 28 66 29 0a 66 73 6d |ctiveope|n(f).fsm|
|00000de0| 20 2a 66 3b 0a 7b 0a 20 | 20 20 20 66 2d 3e 66 6c | *f;.{. |   f->fl|
|00000df0| 61 67 73 20 26 3d 20 7e | 28 41 4f 50 45 4e 44 49 |ags &= ~|(AOPENDI|
|00000e00| 4e 47 7c 50 4f 50 45 4e | 44 49 4e 47 29 3b 20 2f |NG|POPEN|DING); /|
|00000e10| 2a 20 43 6c 65 61 72 20 | 70 65 6e 64 69 6e 67 20 |* Clear |pending |
|00000e20| 66 6c 61 67 73 20 2a 2f | 0a 20 20 20 20 69 66 20 |flags */|.    if |
|00000e30| 28 66 2d 3e 73 74 61 74 | 65 20 3d 3d 20 52 45 51 |(f->stat|e == REQ|
|00000e40| 53 45 4e 54 20 7c 7c 09 | 09 2f 2a 20 41 6c 72 65 |SENT ||.|./* Alre|
|00000e50| 61 64 79 20 61 63 74 69 | 76 65 6c 79 20 6f 70 65 |ady acti|vely ope|
|00000e60| 6e 28 69 6e 67 29 3f 20 | 2a 2f 0a 09 66 2d 3e 73 |n(ing)? |*/..f->s|
|00000e70| 74 61 74 65 20 3d 3d 20 | 41 43 4b 52 43 56 44 20 |tate == |ACKRCVD |
|00000e80| 7c 7c 0a 09 66 2d 3e 73 | 74 61 74 65 20 3d 3d 20 |||..f->s|tate == |
|00000e90| 41 43 4b 53 45 4e 54 20 | 7c 7c 0a 09 66 2d 3e 73 |ACKSENT |||..f->s|
|00000ea0| 74 61 74 65 20 3d 3d 20 | 4f 50 45 4e 29 0a 09 72 |tate == |OPEN)..r|
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|00001ba0| 67 68 2e 20 20 50 65 65 | 72 20 70 72 6f 62 61 62 |gh.  Pee|r probab|
|00001bb0| 6c 79 20 68 65 61 72 64 | 20 75 73 2e 0a 09 20 20 |ly heard| us...  |
|00001bc0| 20 20 20 2a 2f 0a 09 20 | 20 20 20 66 2d 3e 73 74 |   */.. |   f->st|
|00001bd0| 61 74 65 20 3d 20 43 4c | 4f 53 45 44 3b 0a 09 20 |ate = CL|OSED;.. |
|00001be0| 20 20 20 69 66 20 28 66 | 2d 3e 63 61 6c 6c 62 61 |   if (f|->callba|
|00001bf0| 63 6b 73 2d 3e 63 6c 6f | 73 65 64 29 0a 09 09 28 |cks->clo|sed)...(|
|00001c00| 2a 66 2d 3e 63 61 6c 6c | 62 61 63 6b 73 2d 3e 63 |*f->call|backs->c|
|00001c10| 6c 6f 73 65 64 29 28 66 | 29 3b 20 2f 2a 20 45 78 |losed)(f|); /* Ex|
|00001c20| 69 74 2f 72 65 73 74 61 | 72 74 2f 65 74 63 2e 20 |it/resta|rt/etc. |
|00001c30| 2a 2f 0a 09 20 20 20 20 | 72 65 74 75 72 6e 3b 0a |*/..    |return;.|
|00001c40| 09 7d 0a 09 69 66 20 28 | 66 2d 3e 63 61 6c 6c 62 |.}..if (|f->callb|
|00001c50| 61 63 6b 73 2d 3e 72 65 | 74 72 61 6e 73 6d 69 74 |acks->re|transmit|
|00001c60| 29 09 2f 2a 20 49 66 20 | 74 68 65 72 65 20 69 73 |)./* If |there is|
|00001c70| 20 61 20 72 65 74 72 61 | 6e 73 6d 69 74 20 72 74 | a retra|nsmit rt|
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|00001ca0| 6e 73 6d 69 74 29 28 66 | 29 3b 0a 09 66 73 6d 5f |nsmit)(f|);..fsm_|
|00001cb0| 73 64 61 74 61 28 66 2c | 20 54 45 52 4d 52 45 51 |sdata(f,| TERMREQ|
|00001cc0| 2c 20 66 2d 3e 72 65 71 | 69 64 20 3d 20 2b 2b 66 |, f->req|id = ++f|
|00001cd0| 2d 3e 69 64 2c 20 4e 55 | 4c 4c 2c 20 30 29 3b 0a |->id, NU|LL, 0);.|
|00001ce0| 09 09 09 09 09 2f 2a 20 | 53 65 6e 64 20 54 65 72 |...../* |Send Ter|
|00001cf0| 6d 69 6e 61 74 65 2d 52 | 65 71 75 65 73 74 20 2a |minate-R|equest *|
|00001d00| 2f 0a 09 54 49 4d 45 4f | 55 54 28 66 73 6d 5f 74 |/..TIMEO|UT(fsm_t|
|00001d10| 69 6d 65 6f 75 74 2c 20 | 28 63 61 64 64 72 5f 74 |imeout, |(caddr_t|
|00001d20| 29 20 66 2c 20 66 2d 3e | 74 69 6d 65 6f 75 74 74 |) f, f->|timeoutt|
|00001d30| 69 6d 65 29 3b 0a 09 2b | 2b 66 2d 3e 72 65 74 72 |ime);..+|+f->retr|
|00001d40| 61 6e 73 6d 69 74 73 3b | 0a 20 20 20 20 7d 0a 7d |ansmits;|.    }.}|
|00001d50| 0a 0a 0a 2f 2a 0a 20 2a | 20 66 73 6d 5f 6c 6f 77 |.../*. *| fsm_low|
|00001d60| 65 72 75 70 20 2d 20 54 | 68 65 20 6c 6f 77 65 72 |erup - T|he lower|
|00001d70| 20 6c 61 79 65 72 20 69 | 73 20 75 70 2e 0a 20 2a | layer i|s up.. *|
|00001d80| 0a 20 2a 20 53 74 61 72 | 74 20 41 63 74 69 76 65 |. * Star|t Active|
|00001d90| 20 6f 72 20 50 61 73 73 | 69 76 65 20 4f 70 65 6e | or Pass|ive Open|
|00001da0| 20 69 66 20 70 65 6e 64 | 69 6e 67 2e 0a 20 2a 2f | if pend|ing.. */|
|00001db0| 0a 76 6f 69 64 0a 20 20 | 66 73 6d 5f 6c 6f 77 65 |.void.  |fsm_lowe|
|00001dc0| 72 75 70 28 66 29 0a 66 | 73 6d 20 2a 66 3b 0a 7b |rup(f).f|sm *f;.{|
|00001dd0| 0a 20 20 20 20 66 2d 3e | 66 6c 61 67 73 20 7c 3d |.    f->|flags |=|
|00001de0| 20 4c 4f 57 45 52 55 50 | 3b 0a 20 20 20 20 69 66 | LOWERUP|;.    if|
|00001df0| 20 28 66 2d 3e 66 6c 61 | 67 73 20 26 20 41 4f 50 | (f->fla|gs & AOP|
|00001e00| 45 4e 44 49 4e 47 29 09 | 09 2f 2a 20 41 74 74 65 |ENDING).|./* Atte|
|00001e10| 6d 70 74 69 6e 67 20 41 | 63 74 69 76 65 2d 4f 70 |mpting A|ctive-Op|
|00001e20| 65 6e 3f 20 2a 2f 0a 09 | 66 73 6d 5f 61 63 74 69 |en? */..|fsm_acti|
|00001e30| 76 65 6f 70 65 6e 28 66 | 29 3b 09 09 2f 2a 20 54 |veopen(f|);../* T|
|00001e40| 72 79 20 69 74 20 6e 6f | 77 20 2a 2f 0a 20 20 20 |ry it no|w */.   |
|00001e50| 20 65 6c 73 65 20 69 66 | 20 28 66 2d 3e 66 6c 61 | else if| (f->fla|
|00001e60| 67 73 20 26 20 50 4f 50 | 45 4e 44 49 4e 47 29 09 |gs & POP|ENDING).|
|00001e70| 2f 2a 20 41 74 74 65 6d | 70 74 69 6e 67 20 50 61 |/* Attem|pting Pa|
|00001e80| 73 73 69 76 65 2d 4f 70 | 65 6e 3f 20 2a 2f 0a 09 |ssive-Op|en? */..|
|00001e90| 66 73 6d 5f 70 61 73 73 | 69 76 65 6f 70 65 6e 28 |fsm_pass|iveopen(|
|00001ea0| 66 29 3b 09 09 2f 2a 20 | 54 72 79 20 69 74 20 6e |f);../* |Try it n|
|00001eb0| 6f 77 20 2a 2f 0a 7d 0a | 0a 0a 2f 2a 0a 20 2a 20 |ow */.}.|../*. * |
|00001ec0| 66 73 6d 5f 6c 6f 77 65 | 72 64 6f 77 6e 20 2d 20 |fsm_lowe|rdown - |
|00001ed0| 54 68 65 20 6c 6f 77 65 | 72 20 6c 61 79 65 72 20 |The lowe|r layer |
|00001ee0| 69 73 20 64 6f 77 6e 2e | 0a 20 2a 0a 20 2a 20 43 |is down.|. *. * C|
|00001ef0| 61 6e 63 65 6c 20 61 6c | 6c 20 74 69 6d 65 6f 75 |ancel al|l timeou|
|00001f00| 74 73 20 61 6e 64 20 69 | 6e 66 6f 72 6d 20 75 70 |ts and i|nform up|
|00001f10| 70 65 72 20 6c 61 79 65 | 72 73 2e 0a 20 2a 2f 0a |per laye|rs.. */.|
|00001f20| 76 6f 69 64 0a 20 20 66 | 73 6d 5f 6c 6f 77 65 72 |void.  f|sm_lower|
|00001f30| 64 6f 77 6e 28 66 29 0a | 66 73 6d 20 2a 66 3b 0a |down(f).|fsm *f;.|
|00001f40| 7b 0a 20 20 20 20 66 2d | 3e 66 6c 61 67 73 20 26 |{.    f-|>flags &|
|00001f50| 3d 20 7e 4c 4f 57 45 52 | 55 50 3b 0a 20 20 20 20 |= ~LOWER|UP;.    |
|00001f60| 69 66 20 28 66 2d 3e 73 | 74 61 74 65 20 3d 3d 20 |if (f->s|tate == |
|00001f70| 52 45 51 53 45 4e 54 20 | 7c 7c 09 09 2f 2a 20 54 |REQSENT |||../* T|
|00001f80| 69 6d 65 6f 75 74 20 70 | 65 6e 64 69 6e 67 3f 20 |imeout p|ending? |
|00001f90| 2a 2f 0a 09 66 2d 3e 73 | 74 61 74 65 20 3d 3d 20 |*/..f->s|tate == |
|00001fa0| 41 43 4b 52 43 56 44 20 | 7c 7c 0a 09 66 2d 3e 73 |ACKRCVD |||..f->s|
|00001fb0| 74 61 74 65 20 3d 3d 20 | 41 43 4b 53 45 4e 54 20 |tate == |ACKSENT |
|00001fc0| 7c 7c 0a 09 66 2d 3e 73 | 74 61 74 65 20 3d 3d 20 |||..f->s|tate == |
|00001fd0| 54 45 52 4d 53 45 4e 54 | 29 0a 09 55 4e 54 49 4d |TERMSENT|)..UNTIM|
|00001fe0| 45 4f 55 54 28 66 73 6d | 5f 74 69 6d 65 6f 75 74 |EOUT(fsm|_timeout|
|00001ff0| 2c 20 28 63 61 64 64 72 | 5f 74 29 20 66 29 3b 09 |, (caddr|_t) f);.|
|00002000| 2f 2a 20 43 61 6e 63 65 | 6c 20 74 69 6d 65 6f 75 |/* Cance|l timeou|
|00002010| 74 20 2a 2f 0a 20 20 20 | 20 69 66 20 28 66 2d 3e |t */.   | if (f->|
|00002020| 73 74 61 74 65 20 3d 3d | 20 4f 50 45 4e 20 26 26 |state ==| OPEN &&|
|00002030| 09 09 2f 2a 20 4f 50 45 | 4e 3f 20 2a 2f 0a 09 66 |../* OPE|N? */..f|
|00002040| 2d 3e 63 61 6c 6c 62 61 | 63 6b 73 2d 3e 64 6f 77 |->callba|cks->dow|
|00002050| 6e 29 0a 09 28 2a 66 2d | 3e 63 61 6c 6c 62 61 63 |n)..(*f-|>callbac|
|00002060| 6b 73 2d 3e 64 6f 77 6e | 29 28 66 29 3b 09 2f 2a |ks->down|)(f);./*|
|00002070| 20 49 6e 66 6f 72 6d 20 | 75 70 70 65 72 20 6c 61 | Inform |upper la|
|00002080| 79 65 72 73 20 2a 2f 0a | 20 20 20 20 66 2d 3e 73 |yers */.|    f->s|
|00002090| 74 61 74 65 20 3d 20 43 | 4c 4f 53 45 44 3b 0a 20 |tate = C|LOSED;. |
|000020a0| 20 20 20 69 66 20 28 66 | 2d 3e 63 61 6c 6c 62 61 |   if (f|->callba|
|000020b0| 63 6b 73 2d 3e 63 6c 6f | 73 65 64 29 0a 09 28 2a |cks->clo|sed)..(*|
|000020c0| 66 2d 3e 63 61 6c 6c 62 | 61 63 6b 73 2d 3e 63 6c |f->callb|acks->cl|
|000020d0| 6f 73 65 64 29 28 66 29 | 3b 09 2f 2a 20 45 78 69 |osed)(f)|;./* Exi|
|000020e0| 74 2f 72 65 73 74 61 72 | 74 2f 65 74 63 2e 20 2a |t/restar|t/etc. *|
|000020f0| 2f 0a 7d 0a 0a 0a 2f 2a | 0a 20 2a 20 66 73 6d 5f |/.}.../*|. * fsm_|
|00002100| 70 72 6f 74 72 65 6a 65 | 63 74 20 2d 20 50 65 65 |protreje|ct - Pee|
|00002110| 72 20 64 6f 65 73 6e 27 | 74 20 73 70 65 61 6b 20 |r doesn'|t speak |
|00002120| 74 68 69 73 20 70 72 6f | 74 6f 63 6f 6c 2e 0a 20 |this pro|tocol.. |
|00002130| 2a 0a 20 2a 20 50 72 65 | 74 65 6e 64 20 74 68 61 |*. * Pre|tend tha|
|00002140| 74 20 74 68 65 20 6c 6f | 77 65 72 20 6c 61 79 65 |t the lo|wer laye|
|00002150| 72 20 77 65 6e 74 20 64 | 6f 77 6e 2e 0a 20 2a 2f |r went d|own.. */|
|00002160| 0a 76 6f 69 64 0a 20 20 | 66 73 6d 5f 70 72 6f 74 |.void.  |fsm_prot|
|00002170| 72 65 6a 65 63 74 28 66 | 29 0a 66 73 6d 20 2a 66 |reject(f|).fsm *f|
|00002180| 3b 0a 7b 0a 20 20 20 20 | 66 73 6d 5f 6c 6f 77 65 |;.{.    |fsm_lowe|
|00002190| 72 64 6f 77 6e 28 66 29 | 3b 0a 7d 0a 0a 0a 2f 2a |rdown(f)|;.}.../*|
|000021a0| 0a 20 2a 20 66 73 6d 5f | 69 6e 70 75 74 20 2d 20 |. * fsm_|input - |
|000021b0| 49 6e 70 75 74 20 70 61 | 63 6b 65 74 2e 0a 20 2a |Input pa|cket.. *|
|000021c0| 2f 0a 76 6f 69 64 0a 20 | 20 66 73 6d 5f 69 6e 70 |/.void. | fsm_inp|
|000021d0| 75 74 28 66 2c 20 69 6e | 70 61 63 6b 65 74 2c 20 |ut(f, in|packet, |
|000021e0| 6c 29 0a 66 73 6d 20 2a | 66 3b 0a 75 5f 63 68 61 |l).fsm *|f;.u_cha|
|000021f0| 72 20 2a 69 6e 70 61 63 | 6b 65 74 3b 0a 69 6e 74 |r *inpac|ket;.int|
|00002200| 20 6c 3b 0a 7b 0a 20 20 | 75 5f 63 68 61 72 20 2a | l;.{.  |u_char *|
|00002210| 69 6e 70 2c 20 2a 6f 75 | 74 70 3b 0a 20 20 75 5f |inp, *ou|tp;.  u_|
|00002220| 63 68 61 72 20 63 6f 64 | 65 2c 20 69 64 3b 0a 20 |char cod|e, id;. |
|00002230| 20 69 6e 74 20 6c 65 6e | 3b 0a 0a 20 20 2f 2a 0a | int len|;..  /*.|
|00002240| 20 20 20 2a 20 50 61 72 | 73 65 20 68 65 61 64 65 |   * Par|se heade|
|00002250| 72 20 28 63 6f 64 65 2c | 20 69 64 20 61 6e 64 20 |r (code,| id and |
|00002260| 6c 65 6e 67 74 68 29 2e | 0a 20 20 20 2a 20 49 66 |length).|.   * If|
|00002270| 20 70 61 63 6b 65 74 20 | 74 6f 6f 20 73 68 6f 72 | packet |too shor|
|00002280| 74 2c 20 64 72 6f 70 20 | 69 74 2e 0a 20 20 20 2a |t, drop |it..   *|
|00002290| 2f 0a 20 20 69 6e 70 20 | 3d 20 69 6e 70 61 63 6b |/.  inp |= inpack|
|000022a0| 65 74 3b 0a 20 20 69 66 | 20 28 6c 20 3c 20 48 45 |et;.  if| (l < HE|
|000022b0| 41 44 45 52 4c 45 4e 29 | 20 7b 0a 20 20 20 20 46 |ADERLEN)| {.    F|
|000022c0| 53 4d 44 45 42 55 47 28 | 28 4c 4f 47 5f 57 41 52 |SMDEBUG(|(LOG_WAR|
|000022d0| 4e 49 4e 47 2c 20 22 66 | 73 6d 5f 69 6e 70 75 74 |NING, "f|sm_input|
|000022e0| 28 25 78 29 3a 20 52 63 | 76 64 20 73 68 6f 72 74 |(%x): Rc|vd short|
|000022f0| 20 68 65 61 64 65 72 2e | 22 2c 20 66 2d 3e 70 72 | header.|", f->pr|
|00002300| 6f 74 6f 63 6f 6c 29 29 | 0a 20 20 20 20 72 65 74 |otocol))|.    ret|
|00002310| 75 72 6e 3b 0a 20 20 7d | 0a 20 20 47 45 54 43 48 |urn;.  }|.  GETCH|
|00002320| 41 52 28 63 6f 64 65 2c | 20 69 6e 70 29 3b 0a 20 |AR(code,| inp);. |
|00002330| 20 47 45 54 43 48 41 52 | 28 69 64 2c 20 69 6e 70 | GETCHAR|(id, inp|
|00002340| 29 3b 0a 20 20 47 45 54 | 53 48 4f 52 54 28 6c 65 |);.  GET|SHORT(le|
|00002350| 6e 2c 20 69 6e 70 29 3b | 0a 20 20 69 66 20 28 6c |n, inp);|.  if (l|
|00002360| 65 6e 20 3c 20 48 45 41 | 44 45 52 4c 45 4e 29 20 |en < HEA|DERLEN) |
|00002370| 7b 0a 20 20 20 20 46 53 | 4d 44 45 42 55 47 28 28 |{.    FS|MDEBUG((|
|00002380| 4c 4f 47 5f 49 4e 46 4f | 2c 20 22 66 73 6d 5f 69 |LOG_INFO|, "fsm_i|
|00002390| 6e 70 75 74 28 25 78 29 | 3a 20 52 63 76 64 20 69 |nput(%x)|: Rcvd i|
|000023a0| 6c 6c 65 67 61 6c 20 6c | 65 6e 67 74 68 2e 22 2c |llegal l|ength.",|
|000023b0| 0a 09 20 20 20 20 20 20 | 66 2d 3e 70 72 6f 74 6f |..      |f->proto|
|000023c0| 63 6f 6c 29 29 0a 20 20 | 20 20 72 65 74 75 72 6e |col)).  |  return|
|000023d0| 3b 0a 20 20 7d 0a 20 20 | 69 66 20 28 6c 65 6e 20 |;.  }.  |if (len |
|000023e0| 3e 20 6c 29 20 7b 0a 20 | 20 20 20 46 53 4d 44 45 |> l) {. |   FSMDE|
|000023f0| 42 55 47 28 28 4c 4f 47 | 5f 49 4e 46 4f 2c 20 22 |BUG((LOG|_INFO, "|
|00002400| 66 73 6d 5f 69 6e 70 75 | 74 28 25 78 29 3a 20 52 |fsm_inpu|t(%x): R|
|00002410| 63 76 64 20 73 68 6f 72 | 74 20 70 61 63 6b 65 74 |cvd shor|t packet|
|00002420| 2e 22 2c 0a 09 20 20 20 | 20 20 20 66 2d 3e 70 72 |.",..   |   f->pr|
|00002430| 6f 74 6f 63 6f 6c 29 29 | 0a 20 20 20 20 72 65 74 |otocol))|.    ret|
|00002440| 75 72 6e 3b 0a 20 20 7d | 0a 20 20 6c 65 6e 20 2d |urn;.  }|.  len -|
|00002450| 3d 20 48 45 41 44 45 52 | 4c 45 4e 3b 09 09 2f 2a |= HEADER|LEN;../*|
|00002460| 20 73 75 62 74 72 61 63 | 74 20 68 65 61 64 65 72 | subtrac|t header|
|00002470| 20 6c 65 6e 67 74 68 20 | 2a 2f 0a 0a 20 20 2f 2a | length |*/..  /*|
|00002480| 0a 20 20 20 2a 20 41 63 | 74 69 6f 6e 20 64 65 70 |.   * Ac|tion dep|
|00002490| 65 6e 64 73 20 6f 6e 20 | 63 6f 64 65 2e 0a 20 20 |ends on |code..  |
|000024a0| 20 2a 2f 0a 20 20 73 77 | 69 74 63 68 20 28 63 6f | */.  sw|itch (co|
|000024b0| 64 65 29 20 7b 0a 20 20 | 63 61 73 65 20 43 4f 4e |de) {.  |case CON|
|000024c0| 46 52 45 51 3a 0a 20 20 | 20 20 46 53 4d 44 45 42 |FREQ:.  |  FSMDEB|
|000024d0| 55 47 28 28 4c 4f 47 5f | 49 4e 46 4f 2c 20 22 66 |UG((LOG_|INFO, "f|
|000024e0| 73 6d 5f 72 63 6f 6e 66 | 72 65 71 28 25 78 29 3a |sm_rconf|req(%x):|
|000024f0| 20 53 74 61 74 65 20 25 | 64 2e 20 52 63 76 64 20 | State %|d. Rcvd |
|00002500| 69 64 20 25 64 2e 22 2c | 0a 09 20 20 20 20 20 20 |id %d.",|..      |
|00002510| 66 2d 3e 70 72 6f 74 6f | 63 6f 6c 2c 20 66 2d 3e |f->proto|col, f->|
|00002520| 73 74 61 74 65 2c 20 69 | 64 29 29 0a 0a 20 20 20 |state, i|d))..   |
|00002530| 20 69 66 20 28 66 2d 3e | 73 74 61 74 65 20 3d 3d | if (f->|state ==|
|00002540| 20 54 45 52 4d 53 45 4e | 54 29 0a 20 20 20 20 20 | TERMSEN|T).     |
|00002550| 20 72 65 74 75 72 6e 3b | 0a 20 20 20 20 69 66 20 | return;|.    if |
|00002560| 28 66 2d 3e 73 74 61 74 | 65 20 3d 3d 20 43 4c 4f |(f->stat|e == CLO|
|00002570| 53 45 44 29 20 7b 0a 20 | 20 20 20 20 20 66 73 6d |SED) {. |     fsm|
|00002580| 5f 73 64 61 74 61 28 66 | 2c 20 54 45 52 4d 41 43 |_sdata(f|, TERMAC|
|00002590| 4b 2c 20 69 64 2c 20 4e | 55 4c 4c 2c 20 30 29 3b |K, id, N|ULL, 0);|
|000025a0| 0a 20 20 20 20 20 20 72 | 65 74 75 72 6e 3b 0a 20 |.      r|eturn;. |
|000025b0| 20 20 20 7d 0a 20 20 20 | 20 69 66 20 28 66 2d 3e |   }.   | if (f->|
|000025c0| 73 74 61 74 65 20 3d 3d | 20 4f 50 45 4e 20 26 26 |state ==| OPEN &&|
|000025d0| 20 66 2d 3e 63 61 6c 6c | 62 61 63 6b 73 2d 3e 64 | f->call|backs->d|
|000025e0| 6f 77 6e 29 0a 20 20 20 | 20 20 20 28 2a 66 2d 3e |own).   |   (*f->|
|000025f0| 63 61 6c 6c 62 61 63 6b | 73 2d 3e 64 6f 77 6e 29 |callback|s->down)|
|00002600| 28 66 29 3b 09 2f 2a 20 | 49 6e 66 6f 72 6d 20 75 |(f);./* |Inform u|
|00002610| 70 70 65 72 20 6c 61 79 | 65 72 73 20 2a 2f 0a 20 |pper lay|ers */. |
|00002620| 20 20 20 69 66 20 28 66 | 2d 3e 73 74 61 74 65 20 |   if (f|->state |
|00002630| 3d 3d 20 4f 50 45 4e 20 | 7c 7c 20 66 2d 3e 73 74 |== OPEN ||| f->st|
|00002640| 61 74 65 20 3d 3d 20 4c | 49 53 54 45 4e 29 20 7b |ate == L|ISTEN) {|
|00002650| 0a 20 20 20 20 20 20 2f | 2a 20 58 58 58 20 50 6f |.      /|* XXX Po|
|00002660| 73 73 69 62 6c 79 20 6e | 65 65 64 20 68 6f 6c 64 |ssibly n|eed hold|
|00002670| 2d 64 6f 77 6e 20 6f 6e | 20 4f 50 45 4e 3f 20 2a |-down on| OPEN? *|
|00002680| 2f 0a 20 20 20 20 20 20 | 66 73 6d 5f 73 63 6f 6e |/.      |fsm_scon|
|00002690| 66 72 65 71 28 66 29 3b | 09 09 2f 2a 20 53 65 6e |freq(f);|../* Sen|
|000026a0| 64 20 43 6f 6e 66 69 67 | 75 72 65 2d 52 65 71 75 |d Config|ure-Requ|
|000026b0| 65 73 74 20 2a 2f 0a 20 | 20 20 20 20 20 54 49 4d |est */. |     TIM|
|000026c0| 45 4f 55 54 28 66 73 6d | 5f 74 69 6d 65 6f 75 74 |EOUT(fsm|_timeout|
|000026d0| 2c 20 28 63 61 64 64 72 | 5f 74 29 20 66 2c 20 66 |, (caddr|_t) f, f|
|000026e0| 2d 3e 74 69 6d 65 6f 75 | 74 74 69 6d 65 29 3b 0a |->timeou|ttime);.|
|000026f0| 20 20 20 20 7d 0a 20 20 | 20 20 0a 20 20 20 20 69 |    }.  |  .    i|
|00002700| 66 20 28 66 2d 3e 63 61 | 6c 6c 62 61 63 6b 73 2d |f (f->ca|llbacks-|
|00002710| 3e 72 65 71 63 69 29 09 | 2f 2a 20 43 68 65 63 6b |>reqci).|/* Check|
|00002720| 20 43 49 20 2a 2f 0a 20 | 20 20 20 20 20 63 6f 64 | CI */. |     cod|
|00002730| 65 20 3d 20 28 2a 66 2d | 3e 63 61 6c 6c 62 61 63 |e = (*f-|>callbac|
|00002740| 6b 73 2d 3e 72 65 71 63 | 69 29 28 66 2c 20 69 6e |ks->reqc|i)(f, in|
|00002750| 70 2c 20 26 6c 65 6e 29 | 3b 0a 20 20 20 20 65 6c |p, &len)|;.    el|
|00002760| 73 65 20 69 66 20 28 6c | 65 6e 29 0a 20 20 20 20 |se if (l|en).    |
|00002770| 20 20 63 6f 64 65 20 3d | 20 43 4f 4e 46 52 45 4a |  code =| CONFREJ|
|00002780| 3b 09 09 2f 2a 20 52 65 | 6a 65 63 74 20 61 6c 6c |;../* Re|ject all|
|00002790| 20 43 49 20 2a 2f 0a 20 | 20 20 20 0a 20 20 20 20 | CI */. |   .    |
|000027a0| 6c 65 6e 20 2b 3d 20 48 | 45 41 44 45 52 4c 45 4e |len += H|EADERLEN|
|000027b0| 3b 09 2f 2a 20 61 64 64 | 20 68 65 61 64 65 72 20 |;./* add| header |
|000027c0| 6c 65 6e 67 74 68 20 62 | 61 63 6b 20 6f 6e 20 2a |length b|ack on *|
|000027d0| 2f 0a 20 20 20 20 0a 20 | 20 20 20 69 6e 70 20 3d |/.    . |   inp =|
|000027e0| 20 69 6e 70 61 63 6b 65 | 74 3b 09 20 20 20 20 20 | inpacke|t;.     |
|000027f0| 20 20 20 20 20 20 20 20 | 20 2f 2a 20 52 65 73 65 |        | /* Rese|
|00002800| 74 20 74 6f 20 68 65 61 | 64 65 72 20 2a 2f 0a 20 |t to hea|der */. |
|00002810| 20 20 20 6f 75 74 70 20 | 3d 20 6f 75 74 70 61 63 |   outp |= outpac|
|00002820| 6b 65 74 5f 62 75 66 3b | 09 2f 2a 20 67 65 74 20 |ket_buf;|./* get |
|00002830| 70 6f 69 6e 74 65 72 20 | 74 6f 20 6f 75 74 70 75 |pointer |to outpu|
|00002840| 74 20 62 75 66 66 65 72 | 20 2a 2f 0a 20 20 20 20 |t buffer| */.    |
|00002850| 4d 41 4b 45 48 45 41 44 | 45 52 28 6f 75 74 70 2c |MAKEHEAD|ER(outp,|
|00002860| 20 66 2d 3e 70 72 6f 74 | 6f 63 6f 6c 29 3b 20 2f | f->prot|ocol); /|
|00002870| 2a 20 70 61 73 74 65 20 | 69 6e 20 44 4c 4c 20 68 |* paste |in DLL h|
|00002880| 65 61 64 65 72 20 2a 2f | 0a 20 20 20 20 42 43 4f |eader */|.    BCO|
|00002890| 50 59 28 69 6e 70 2c 20 | 6f 75 74 70 2c 20 6c 65 |PY(inp, |outp, le|
|000028a0| 6e 29 3b 09 2f 2a 20 63 | 6f 70 79 20 69 6e 70 75 |n);./* c|opy inpu|
|000028b0| 74 20 70 61 63 6b 65 74 | 20 2a 2f 0a 20 20 20 20 |t packet| */.    |
|000028c0| 50 55 54 43 48 41 52 28 | 63 6f 64 65 2c 20 6f 75 |PUTCHAR(|code, ou|
|000028d0| 74 70 29 3b 09 2f 2a 20 | 70 75 74 20 69 6e 20 74 |tp);./* |put in t|
|000028e0| 68 65 20 63 6f 64 65 2c | 20 69 64 2c 20 61 6e 64 |he code,| id, and|
|000028f0| 20 6c 65 6e 67 74 68 2a | 2f 0a 20 20 20 20 50 55 | length*|/.    PU|
|00002900| 54 43 48 41 52 28 69 64 | 2c 20 6f 75 74 70 29 3b |TCHAR(id|, outp);|
|00002910| 0a 20 20 20 20 50 55 54 | 53 48 4f 52 54 28 6c 65 |.    PUT|SHORT(le|
|00002920| 6e 2c 20 6f 75 74 70 29 | 3b 0a 20 20 20 20 6f 75 |n, outp)|;.    ou|
|00002930| 74 70 75 74 28 66 2d 3e | 75 6e 69 74 2c 20 6f 75 |tput(f->|unit, ou|
|00002940| 74 70 61 63 6b 65 74 5f | 62 75 66 2c 20 6c 65 6e |tpacket_|buf, len|
|00002950| 20 2b 20 44 4c 4c 48 45 | 41 44 45 52 4c 45 4e 29 | + DLLHE|ADERLEN)|
|00002960| 3b 20 20 20 20 20 2f 2a | 20 73 65 6e 64 20 69 74 |;     /*| send it|
|00002970| 20 6f 75 74 20 2a 2f 20 | 0a 20 20 20 20 0a 20 20 | out */ |.    .  |
|00002980| 20 20 69 66 20 28 63 6f | 64 65 20 3d 3d 20 43 4f |  if (co|de == CO|
|00002990| 4e 46 41 43 4b 29 20 7b | 0a 20 20 20 20 20 20 69 |NFACK) {|.      i|
|000029a0| 66 20 28 66 2d 3e 73 74 | 61 74 65 20 3d 3d 20 41 |f (f->st|ate == A|
|000029b0| 43 4b 52 43 56 44 29 20 | 7b 0a 09 55 4e 54 49 4d |CKRCVD) |{..UNTIM|
|000029c0| 45 4f 55 54 28 66 73 6d | 5f 74 69 6d 65 6f 75 74 |EOUT(fsm|_timeout|
|000029d0| 2c 20 28 63 61 64 64 72 | 5f 74 29 20 66 29 3b 20 |, (caddr|_t) f); |
|000029e0| 2f 2a 20 43 61 6e 63 65 | 6c 20 74 69 6d 65 6f 75 |/* Cance|l timeou|
|000029f0| 74 20 2a 2f 0a 09 69 66 | 20 28 66 2d 3e 63 61 6c |t */..if| (f->cal|
|00002a00| 6c 62 61 63 6b 73 2d 3e | 75 70 29 0a 09 20 20 28 |lbacks->|up)..  (|
|00002a10| 2a 66 2d 3e 63 61 6c 6c | 62 61 63 6b 73 2d 3e 75 |*f->call|backs->u|
|00002a20| 70 29 28 66 29 3b 20 2f | 2a 20 49 6e 66 6f 72 6d |p)(f); /|* Inform|
|00002a30| 20 75 70 70 65 72 20 6c | 61 79 65 72 73 20 2a 2f | upper l|ayers */|
|00002a40| 0a 09 66 2d 3e 73 74 61 | 74 65 20 3d 20 4f 50 45 |..f->sta|te = OPE|
|00002a50| 4e 3b 0a 20 20 20 20 20 | 20 7d 0a 20 20 20 20 20 |N;.     | }.     |
|00002a60| 20 65 6c 73 65 0a 09 66 | 2d 3e 73 74 61 74 65 20 | else..f|->state |
|00002a70| 3d 20 41 43 4b 53 45 4e | 54 3b 0a 20 20 20 20 7d |= ACKSEN|T;.    }|
|00002a80| 0a 20 20 20 20 65 6c 73 | 65 20 7b 0a 20 20 20 20 |.    els|e {.    |
|00002a90| 20 20 69 66 20 28 66 2d | 3e 73 74 61 74 65 20 21 |  if (f-|>state !|
|00002aa0| 3d 20 41 43 4b 52 43 56 | 44 29 0a 09 66 2d 3e 73 |= ACKRCV|D)..f->s|
|00002ab0| 74 61 74 65 20 3d 20 52 | 45 51 53 45 4e 54 3b 0a |tate = R|EQSENT;.|
|00002ac0| 20 20 20 20 7d 0a 20 20 | 20 20 72 65 74 75 72 6e |    }.  |  return|
|00002ad0| 3b 0a 20 20 20 20 0a 20 | 20 63 61 73 65 20 43 4f |;.    . | case CO|
|00002ae0| 4e 46 41 43 4b 3a 0a 20 | 20 20 20 66 73 6d 5f 72 |NFACK:. |   fsm_r|
|00002af0| 63 6f 6e 66 61 63 6b 28 | 66 2c 20 69 6e 70 2c 20 |confack(|f, inp, |
|00002b00| 69 64 2c 20 6c 65 6e 29 | 3b 0a 20 20 20 20 62 72 |id, len)|;.    br|
|00002b10| 65 61 6b 3b 0a 20 20 20 | 20 0a 20 20 63 61 73 65 |eak;.   | .  case|
|00002b20| 20 43 4f 4e 46 4e 41 4b | 3a 0a 20 20 20 20 66 73 | CONFNAK|:.    fs|
|00002b30| 6d 5f 72 63 6f 6e 66 6e | 61 6b 28 66 2c 20 69 6e |m_rconfn|ak(f, in|
|00002b40| 70 2c 20 69 64 2c 20 6c | 65 6e 29 3b 0a 20 20 20 |p, id, l|en);.   |
|00002b50| 20 62 72 65 61 6b 3b 0a | 20 20 20 20 0a 20 20 63 | break;.|    .  c|
|00002b60| 61 73 65 20 43 4f 4e 46 | 52 45 4a 3a 0a 20 20 20 |ase CONF|REJ:.   |
|00002b70| 20 66 73 6d 5f 72 63 6f | 6e 66 72 65 6a 28 66 2c | fsm_rco|nfrej(f,|
|00002b80| 20 69 6e 70 2c 20 69 64 | 2c 20 6c 65 6e 29 3b 0a | inp, id|, len);.|
|00002b90| 20 20 20 20 62 72 65 61 | 6b 3b 0a 20 20 20 20 0a |    brea|k;.    .|
|00002ba0| 20 20 63 61 73 65 20 54 | 45 52 4d 52 45 51 3a 0a |  case T|ERMREQ:.|
|00002bb0| 20 20 20 20 66 73 6d 5f | 72 74 65 72 6d 72 65 71 |    fsm_|rtermreq|
|00002bc0| 28 66 2c 20 69 64 29 3b | 0a 20 20 20 20 62 72 65 |(f, id);|.    bre|
|00002bd0| 61 6b 3b 0a 20 20 20 20 | 0a 20 20 63 61 73 65 20 |ak;.    |.  case |
|00002be0| 54 45 52 4d 41 43 4b 3a | 0a 20 20 20 20 66 73 6d |TERMACK:|.    fsm|
|00002bf0| 5f 72 74 65 72 6d 61 63 | 6b 28 66 29 3b 0a 20 20 |_rtermac|k(f);.  |
|00002c00| 20 20 62 72 65 61 6b 3b | 0a 20 20 20 20 0a 20 20 |  break;|.    .  |
|00002c10| 63 61 73 65 20 43 4f 44 | 45 52 45 4a 3a 0a 20 20 |case COD|EREJ:.  |
|00002c20| 20 20 66 73 6d 5f 72 63 | 6f 64 65 72 65 6a 28 66 |  fsm_rc|oderej(f|
|00002c30| 2c 20 69 6e 70 2c 20 6c | 65 6e 29 3b 0a 20 20 20 |, inp, l|en);.   |
|00002c40| 20 62 72 65 61 6b 3b 0a | 20 20 20 20 0a 20 20 63 | break;.|    .  c|
|00002c50| 61 73 65 20 50 52 4f 54 | 52 45 4a 3a 0a 20 20 20 |ase PROT|REJ:.   |
|00002c60| 20 66 73 6d 5f 72 70 72 | 6f 74 72 65 6a 28 66 2c | fsm_rpr|otrej(f,|
|00002c70| 20 69 6e 70 2c 20 6c 65 | 6e 29 3b 0a 20 20 20 20 | inp, le|n);.    |
|00002c80| 62 72 65 61 6b 3b 0a 20 | 20 20 20 0a 20 20 63 61 |break;. |   .  ca|
|00002c90| 73 65 20 45 43 48 4f 52 | 45 51 3a 0a 20 20 20 20 |se ECHOR|EQ:.    |
|00002ca0| 46 53 4d 44 45 42 55 47 | 28 28 4c 4f 47 5f 49 4e |FSMDEBUG|((LOG_IN|
|00002cb0| 46 4f 2c 20 22 66 73 6d | 5f 72 65 63 68 6f 72 65 |FO, "fsm|_rechore|
|00002cc0| 71 28 25 78 29 3a 20 53 | 74 61 74 65 20 25 64 2e |q(%x): S|tate %d.|
|00002cd0| 20 52 63 76 64 20 69 64 | 20 25 64 2e 22 2c 0a 09 | Rcvd id| %d.",..|
|00002ce0| 20 20 20 20 20 20 66 2d | 3e 70 72 6f 74 6f 63 6f |      f-|>protoco|
|00002cf0| 6c 2c 20 66 2d 3e 73 74 | 61 74 65 2c 20 69 64 29 |l, f->st|ate, id)|
|00002d00| 29 0a 20 20 20 20 0a 20 | 20 20 20 73 77 69 74 63 |).    . |   switc|
|00002d10| 68 20 28 66 2d 3e 73 74 | 61 74 65 29 20 7b 0a 20 |h (f->st|ate) {. |
|00002d20| 20 20 20 63 61 73 65 20 | 43 4c 4f 53 45 44 3a 0a |   case |CLOSED:.|
|00002d30| 20 20 20 20 63 61 73 65 | 20 4c 49 53 54 45 4e 3a |    case| LISTEN:|
|00002d40| 0a 20 20 20 20 20 20 66 | 73 6d 5f 73 64 61 74 61 |.      f|sm_sdata|
|00002d50| 28 66 2c 20 54 45 52 4d | 41 43 4b 2c 20 69 64 2c |(f, TERM|ACK, id,|
|00002d60| 20 4e 55 4c 4c 2c 20 30 | 29 3b 0a 20 20 20 20 20 | NULL, 0|);.     |
|00002d70| 20 62 72 65 61 6b 3b 0a | 20 20 20 20 20 20 0a 20 | break;.|      . |
|00002d80| 20 20 20 63 61 73 65 20 | 4f 50 45 4e 3a 0a 20 20 |   case |OPEN:.  |
|00002d90| 20 20 20 20 69 6e 70 20 | 3d 20 69 6e 70 61 63 6b |    inp |= inpack|
|00002da0| 65 74 3b 20 2f 2a 20 52 | 65 73 65 74 20 74 6f 20 |et; /* R|eset to |
|00002db0| 68 65 61 64 65 72 20 2a | 2f 0a 20 20 20 20 20 20 |header *|/.      |
|00002dc0| 6f 75 74 70 20 3d 20 6f | 75 74 70 61 63 6b 65 74 |outp = o|utpacket|
|00002dd0| 5f 62 75 66 3b 09 2f 2a | 20 67 65 74 20 70 6f 69 |_buf;./*| get poi|
|00002de0| 6e 74 65 72 20 74 6f 20 | 6f 75 74 70 75 74 20 62 |nter to |output b|
|00002df0| 75 66 66 65 72 20 2a 2f | 0a 20 20 20 20 20 20 4d |uffer */|.      M|
|00002e00| 41 4b 45 48 45 41 44 45 | 52 28 6f 75 74 70 2c 20 |AKEHEADE|R(outp, |
|00002e10| 66 2d 3e 70 72 6f 74 6f | 63 6f 6c 29 3b 20 2f 2a |f->proto|col); /*|
|00002e20| 20 61 64 64 20 44 4c 4c | 20 68 65 61 64 65 72 20 | add DLL| header |
|00002e30| 2a 2f 0a 20 20 20 20 20 | 20 6c 65 6e 20 2b 3d 20 |*/.     | len += |
|00002e40| 48 45 41 44 45 52 4c 45 | 4e 3b 09 09 2f 2a 20 61 |HEADERLE|N;../* a|
|00002e50| 64 64 20 68 65 61 64 65 | 72 20 6c 65 6e 67 74 68 |dd heade|r length|
|00002e60| 20 2a 2f 0a 20 20 20 20 | 20 20 42 43 4f 50 59 28 | */.    |  BCOPY(|
|00002e70| 69 6e 70 2c 20 6f 75 74 | 70 2c 20 6c 65 6e 29 3b |inp, out|p, len);|
|00002e80| 09 2f 2a 20 63 6f 70 79 | 20 69 6e 70 75 74 20 70 |./* copy| input p|
|00002e90| 61 63 6b 65 74 20 74 6f | 20 6f 75 74 70 75 74 20 |acket to| output |
|00002ea0| 62 75 66 66 65 72 20 2a | 2f 0a 20 20 20 20 20 20 |buffer *|/.      |
|00002eb0| 50 55 54 43 48 41 52 28 | 45 43 48 4f 52 45 50 2c |PUTCHAR(|ECHOREP,|
|00002ec0| 20 6f 75 74 70 29 3b 09 | 2f 2a 20 73 65 74 20 63 | outp);.|/* set c|
|00002ed0| 6f 64 65 20 74 6f 20 65 | 63 68 6f 20 72 65 70 6c |ode to e|cho repl|
|00002ee0| 79 20 2a 2f 0a 20 20 20 | 20 20 20 50 55 54 43 48 |y */.   |   PUTCH|
|00002ef0| 41 52 28 69 64 2c 20 6f | 75 74 70 29 3b 09 2f 2a |AR(id, o|utp);./*|
|00002f00| 20 61 64 64 20 69 6e 20 | 69 64 20 2a 2f 0a 20 20 | add in |id */.  |
|00002f10| 20 20 20 20 50 55 54 53 | 48 4f 52 54 28 6c 65 6e |    PUTS|HORT(len|
|00002f20| 2c 20 6f 75 74 70 29 3b | 09 2f 2a 20 61 6e 64 20 |, outp);|./* and |
|00002f30| 6c 65 6e 67 74 68 20 2a | 2f 0a 20 20 20 20 20 20 |length *|/.      |
|00002f40| 6f 75 74 70 75 74 28 66 | 2d 3e 75 6e 69 74 2c 20 |output(f|->unit, |
|00002f50| 6f 75 74 70 61 63 6b 65 | 74 5f 62 75 66 2c 20 6c |outpacke|t_buf, l|
|00002f60| 65 6e 20 2b 20 44 4c 4c | 48 45 41 44 45 52 4c 45 |en + DLL|HEADERLE|
|00002f70| 4e 29 3b 20 2f 2a 20 73 | 65 6e 64 20 69 74 20 2a |N); /* s|end it *|
|00002f80| 2f 0a 20 20 20 20 20 20 | 72 65 74 75 72 6e 3b 0a |/.      |return;.|
|00002f90| 20 20 20 20 7d 0a 20 20 | 20 20 62 72 65 61 6b 3b |    }.  |  break;|
|00002fa0| 0a 20 20 20 20 0a 20 20 | 63 61 73 65 20 45 43 48 |.    .  |case ECH|
|00002fb0| 4f 52 45 50 3a 0a 20 20 | 63 61 73 65 20 44 49 53 |OREP:.  |case DIS|
|00002fc0| 43 52 45 51 3a 0a 20 20 | 20 20 2f 2a 20 58 58 58 |CREQ:.  |  /* XXX|
|00002fd0| 20 44 65 6c 69 76 65 72 | 20 74 6f 20 45 43 48 4f | Deliver| to ECHO|
|00002fe0| 52 45 51 20 73 65 6e 64 | 65 72 3f 20 2a 2f 0a 20 |REQ send|er? */. |
|00002ff0| 20 20 20 62 72 65 61 6b | 3b 0a 20 20 20 20 0a 20 |   break|;.    . |
|00003000| 20 64 65 66 61 75 6c 74 | 3a 0a 20 20 20 20 66 73 | default|:.    fs|
|00003010| 6d 5f 73 64 61 74 61 28 | 66 2c 20 43 4f 44 45 52 |m_sdata(|f, CODER|
|00003020| 45 4a 2c 20 2b 2b 66 2d | 3e 69 64 2c 20 69 6e 70 |EJ, ++f-|>id, inp|
|00003030| 61 63 6b 65 74 2c 20 6c | 65 6e 20 2b 20 48 45 41 |acket, l|en + HEA|
|00003040| 44 45 52 4c 45 4e 29 3b | 0a 20 20 20 20 62 72 65 |DERLEN);|.    bre|
|00003050| 61 6b 3b 0a 20 20 7d 0a | 0a 7d 0a 0a 0a 2f 2a 0a |ak;.  }.|.}.../*.|
|00003060| 20 2a 20 66 73 6d 5f 72 | 63 6f 6e 66 61 63 6b 20 | * fsm_r|confack |
|00003070| 2d 20 52 65 63 65 69 76 | 65 20 43 6f 6e 66 69 67 |- Receiv|e Config|
|00003080| 75 72 65 2d 41 63 6b 2e | 0a 20 2a 2f 0a 73 74 61 |ure-Ack.|. */.sta|
|00003090| 74 69 63 20 76 6f 69 64 | 0a 20 20 66 73 6d 5f 72 |tic void|.  fsm_r|
|000030a0| 63 6f 6e 66 61 63 6b 28 | 66 2c 20 69 6e 70 2c 20 |confack(|f, inp, |
|000030b0| 69 64 2c 20 6c 65 6e 29 | 0a 66 73 6d 20 2a 66 3b |id, len)|.fsm *f;|
|000030c0| 0a 75 5f 63 68 61 72 20 | 2a 69 6e 70 3b 0a 75 5f |.u_char |*inp;.u_|
|000030d0| 63 68 61 72 20 69 64 3b | 0a 69 6e 74 20 6c 65 6e |char id;|.int len|
|000030e0| 3b 0a 7b 0a 20 20 20 20 | 46 53 4d 44 45 42 55 47 |;.{.    |FSMDEBUG|
|000030f0| 28 28 4c 4f 47 5f 49 4e | 46 4f 2c 20 22 66 73 6d |((LOG_IN|FO, "fsm|
|00003100| 5f 72 63 6f 6e 66 61 63 | 6b 28 25 78 29 3a 20 53 |_rconfac|k(%x): S|
|00003110| 74 61 74 65 20 25 64 2e | 20 52 63 76 64 20 69 64 |tate %d.| Rcvd id|
|00003120| 20 25 64 2e 22 2c 0a 09 | 20 20 20 20 20 20 66 2d | %d.",..|      f-|
|00003130| 3e 70 72 6f 74 6f 63 6f | 6c 2c 20 66 2d 3e 73 74 |>protoco|l, f->st|
|00003140| 61 74 65 2c 20 69 64 29 | 29 0a 0a 20 20 20 20 73 |ate, id)|)..    s|
|00003150| 77 69 74 63 68 20 28 66 | 2d 3e 73 74 61 74 65 29 |witch (f|->state)|
|00003160| 20 7b 0a 20 20 20 20 20 | 20 63 61 73 65 20 4c 49 | {.     | case LI|
|00003170| 53 54 45 4e 3a 0a 20 20 | 20 20 20 20 63 61 73 65 |STEN:.  |    case|
|00003180| 20 43 4c 4f 53 45 44 3a | 0a 09 66 73 6d 5f 73 64 | CLOSED:|..fsm_sd|
|00003190| 61 74 61 28 66 2c 20 54 | 45 52 4d 41 43 4b 2c 20 |ata(f, T|ERMACK, |
|000031a0| 69 64 2c 20 4e 55 4c 4c | 2c 20 30 29 3b 0a 09 62 |id, NULL|, 0);..b|
|000031b0| 72 65 61 6b 3b 0a 0a 20 | 20 20 20 20 20 63 61 73 |reak;.. |     cas|
|000031c0| 65 20 41 43 4b 52 43 56 | 44 3a 0a 20 20 20 20 20 |e ACKRCV|D:.     |
|000031d0| 20 63 61 73 65 20 52 45 | 51 53 45 4e 54 3a 0a 09 | case RE|QSENT:..|
|000031e0| 69 66 20 28 69 64 20 21 | 3d 20 66 2d 3e 72 65 71 |if (id !|= f->req|
|000031f0| 69 64 29 09 09 2f 2a 20 | 45 78 70 65 63 74 65 64 |id)../* |Expected|
|00003200| 20 69 64 3f 20 2a 2f 0a | 09 20 20 20 20 62 72 65 | id? */.|.    bre|
|00003210| 61 6b 3b 09 09 09 2f 2a | 20 4e 6f 70 65 2c 20 74 |ak;.../*| Nope, t|
|00003220| 6f 73 73 2e 2e 2e 20 2a | 2f 0a 09 69 66 20 28 66 |oss... *|/..if (f|
|00003230| 2d 3e 63 61 6c 6c 62 61 | 63 6b 73 2d 3e 61 63 6b |->callba|cks->ack|
|00003240| 63 69 20 26 26 0a 09 20 | 20 20 20 28 2a 66 2d 3e |ci &&.. |   (*f->|
|00003250| 63 61 6c 6c 62 61 63 6b | 73 2d 3e 61 63 6b 63 69 |callback|s->ackci|
|00003260| 29 28 66 2c 20 69 6e 70 | 2c 20 6c 65 6e 29 29 20 |)(f, inp|, len)) |
|00003270| 2f 2a 20 47 6f 6f 64 20 | 61 63 6b 3f 20 2a 2f 0a |/* Good |ack? */.|
|00003280| 09 20 20 20 20 66 2d 3e | 73 74 61 74 65 20 3d 20 |.    f->|state = |
|00003290| 41 43 4b 52 43 56 44 3b | 0a 09 65 6c 73 65 0a 09 |ACKRCVD;|..else..|
|000032a0| 20 20 20 20 66 2d 3e 73 | 74 61 74 65 20 3d 20 52 |    f->s|tate = R|
|000032b0| 45 51 53 45 4e 54 3b 09 | 09 2f 2a 20 57 61 69 74 |EQSENT;.|./* Wait|
|000032c0| 20 66 6f 72 20 74 69 6d | 65 6f 75 74 20 74 6f 20 | for tim|eout to |
|000032d0| 72 65 74 72 61 6e 73 6d | 69 74 20 2a 2f 0a 09 62 |retransm|it */..b|
|000032e0| 72 65 61 6b 3b 0a 0a 20 | 20 20 20 20 20 63 61 73 |reak;.. |     cas|
|000032f0| 65 20 41 43 4b 53 45 4e | 54 3a 0a 09 69 66 20 28 |e ACKSEN|T:..if (|
|00003300| 69 64 20 21 3d 20 66 2d | 3e 72 65 71 69 64 29 09 |id != f-|>reqid).|
|00003310| 09 2f 2a 20 45 78 70 65 | 63 74 65 64 20 69 64 3f |./* Expe|cted id?|
|00003320| 20 2a 2f 0a 09 20 20 20 | 20 62 72 65 61 6b 3b 09 | */..   | break;.|
|00003330| 09 09 2f 2a 20 4e 6f 70 | 65 2c 20 74 6f 73 73 2e |../* Nop|e, toss.|
|00003340| 2e 2e 20 2a 2f 0a 09 69 | 66 20 28 66 2d 3e 63 61 |.. */..i|f (f->ca|
|00003350| 6c 6c 62 61 63 6b 73 2d | 3e 61 63 6b 63 69 20 26 |llbacks-|>ackci &|
|00003360| 26 0a 09 20 20 20 20 28 | 2a 66 2d 3e 63 61 6c 6c |&..    (|*f->call|
|00003370| 62 61 63 6b 73 2d 3e 61 | 63 6b 63 69 29 28 66 2c |backs->a|ckci)(f,|
|00003380| 20 69 6e 70 2c 20 6c 65 | 6e 29 29 20 7b 20 2f 2a | inp, le|n)) { /*|
|00003390| 20 47 6f 6f 64 20 61 63 | 6b 3f 20 2a 2f 0a 09 20 | Good ac|k? */.. |
|000033a0| 20 20 20 55 4e 54 49 4d | 45 4f 55 54 28 66 73 6d |   UNTIM|EOUT(fsm|
|000033b0| 5f 74 69 6d 65 6f 75 74 | 2c 20 28 63 61 64 64 72 |_timeout|, (caddr|
|000033c0| 5f 74 29 20 66 29 3b 09 | 2f 2a 20 43 61 6e 63 65 |_t) f);.|/* Cance|
|000033d0| 6c 20 74 69 6d 65 6f 75 | 74 20 2a 2f 0a 09 20 20 |l timeou|t */..  |
|000033e0| 20 20 69 66 20 28 66 2d | 3e 63 61 6c 6c 62 61 63 |  if (f-|>callbac|
|000033f0| 6b 73 2d 3e 75 70 29 0a | 09 09 28 2a 66 2d 3e 63 |ks->up).|..(*f->c|
|00003400| 61 6c 6c 62 61 63 6b 73 | 2d 3e 75 70 29 28 66 29 |allbacks|->up)(f)|
|00003410| 3b 09 2f 2a 20 49 6e 66 | 6f 72 6d 20 75 70 70 65 |;./* Inf|orm uppe|
|00003420| 72 20 6c 61 79 65 72 73 | 20 2a 2f 0a 09 20 20 20 |r layers| */..   |
|00003430| 20 66 2d 3e 73 74 61 74 | 65 20 3d 20 4f 50 45 4e | f->stat|e = OPEN|
|00003440| 3b 0a 09 7d 0a 09 65 6c | 73 65 0a 09 20 20 20 20 |;..}..el|se..    |
|00003450| 66 2d 3e 73 74 61 74 65 | 20 3d 20 52 45 51 53 45 |f->state| = REQSE|
|00003460| 4e 54 3b 09 09 2f 2a 20 | 57 61 69 74 20 66 6f 72 |NT;../* |Wait for|
|00003470| 20 74 69 6d 65 6f 75 74 | 20 74 6f 20 72 65 74 72 | timeout| to retr|
|00003480| 61 6e 73 6d 69 74 20 2a | 2f 0a 09 62 72 65 61 6b |ansmit *|/..break|
|00003490| 3b 0a 0a 20 20 20 20 20 | 20 63 61 73 65 20 4f 50 |;..     | case OP|
|000034a0| 45 4e 3a 0a 09 69 66 20 | 28 66 2d 3e 63 61 6c 6c |EN:..if |(f->call|
|000034b0| 62 61 63 6b 73 2d 3e 64 | 6f 77 6e 29 0a 09 20 20 |backs->d|own)..  |
|000034c0| 20 20 28 2a 66 2d 3e 63 | 61 6c 6c 62 61 63 6b 73 |  (*f->c|allbacks|
|000034d0| 2d 3e 64 6f 77 6e 29 28 | 66 29 3b 09 2f 2a 20 49 |->down)(|f);./* I|
|000034e0| 6e 66 6f 72 6d 20 75 70 | 70 65 72 20 6c 61 79 65 |nform up|per laye|
|000034f0| 72 73 20 2a 2f 0a 09 66 | 2d 3e 73 74 61 74 65 20 |rs */..f|->state |
|00003500| 3d 20 43 4c 4f 53 45 44 | 3b 09 09 2f 2a 20 4f 6e |= CLOSED|;../* On|
|00003510| 6c 79 20 66 6f 72 20 61 | 20 6d 6f 6d 65 6e 74 2e |ly for a| moment.|
|00003520| 2e 2e 20 2a 2f 0a 09 66 | 73 6d 5f 61 63 74 69 76 |.. */..f|sm_activ|
|00003530| 65 6f 70 65 6e 28 66 29 | 3b 09 09 2f 2a 20 52 65 |eopen(f)|;../* Re|
|00003540| 73 74 61 72 74 20 2a 2f | 0a 09 62 72 65 61 6b 3b |start */|..break;|
|00003550| 0a 20 20 20 20 7d 0a 7d | 0a 0a 0a 2f 2a 0a 20 2a |.    }.}|.../*. *|
|00003560| 20 66 73 6d 5f 72 63 6f | 6e 66 6e 61 6b 20 2d 20 | fsm_rco|nfnak - |
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|000035b0| 2c 20 6c 65 6e 29 0a 66 | 73 6d 20 2a 66 3b 0a 75 |, len).f|sm *f;.u|
|000035c0| 5f 63 68 61 72 20 2a 69 | 6e 70 3b 0a 75 5f 63 68 |_char *i|np;.u_ch|
|000035d0| 61 72 20 69 64 3b 0a 69 | 6e 74 20 6c 65 6e 3b 0a |ar id;.i|nt len;.|
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|00003620| 64 2e 22 2c 0a 09 20 20 | 20 20 20 20 66 2d 3e 70 |d.",..  |    f->p|
|00003630| 72 6f 74 6f 63 6f 6c 2c | 20 66 2d 3e 73 74 61 74 |rotocol,| f->stat|
|00003640| 65 2c 20 69 64 29 29 0a | 0a 20 20 20 20 73 77 69 |e, id)).|.    swi|
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|00003670| 45 4e 3a 0a 20 20 20 20 | 20 20 63 61 73 65 20 43 |EN:.    |  case C|
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|00003690| 61 28 66 2c 20 54 45 52 | 4d 41 43 4b 2c 20 69 64 |a(f, TER|MACK, id|
|000036a0| 2c 20 4e 55 4c 4c 2c 20 | 30 29 3b 0a 09 62 72 65 |, NULL, |0);..bre|
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|00003710| 3b 09 09 09 2f 2a 20 4e | 6f 70 65 2c 20 74 6f 73 |;.../* N|ope, tos|
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|00003730| 2d 3e 6e 61 6b 6c 6f 6f | 70 73 20 3e 20 66 2d 3e |->nakloo|ps > f->|
|00003740| 6d 61 78 6e 61 6b 6c 6f | 6f 70 73 29 20 7b 0a 09 |maxnaklo|ops) {..|
|00003750| 20 20 20 20 46 53 4d 44 | 45 42 55 47 28 28 4c 4f |    FSMD|EBUG((LO|
|00003760| 47 5f 49 4e 46 4f 2c 0a | 09 09 20 20 20 20 20 20 |G_INFO,.|..      |
|00003770| 22 66 73 6d 5f 72 63 6f | 6e 66 6e 61 6b 28 25 78 |"fsm_rco|nfnak(%x|
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|00003790| 4e 41 4b 20 6c 6f 6f 70 | 21 22 2c 0a 09 09 20 20 |NAK loop|!",...  |
|000037a0| 20 20 20 20 66 2d 3e 70 | 72 6f 74 6f 63 6f 6c 29 |    f->p|rotocol)|
|000037b0| 29 0a 09 20 20 20 20 62 | 72 65 61 6b 3b 09 09 09 |)..    b|reak;...|
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|000037e0| 55 54 28 66 73 6d 5f 74 | 69 6d 65 6f 75 74 2c 20 |UT(fsm_t|imeout, |
|000037f0| 28 63 61 64 64 72 5f 74 | 29 20 66 29 3b 09 2f 2a |(caddr_t|) f);./*|
|00003800| 20 43 61 6e 63 65 6c 20 | 74 69 6d 65 6f 75 74 20 | Cancel |timeout |
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|00003820| 61 63 6b 73 2d 3e 6e 61 | 6b 63 69 29 0a 09 20 20 |acks->na|kci)..  |
|00003830| 20 20 28 2a 66 2d 3e 63 | 61 6c 6c 62 61 63 6b 73 |  (*f->c|allbacks|
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|00003850| 20 6c 65 6e 29 3b 0a 09 | 66 73 6d 5f 73 63 6f 6e | len);..|fsm_scon|
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|000038c0| 3e 72 65 74 72 61 6e 73 | 6d 69 74 73 3b 0a 09 62 |>retrans|mits;..b|
|000038d0| 72 65 61 6b 3b 0a 0a 20 | 20 20 20 20 20 63 61 73 |reak;.. |     cas|
|000038e0| 65 20 41 43 4b 52 43 56 | 44 3a 0a 09 66 2d 3e 73 |e ACKRCV|D:..f->s|
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|00003930| 20 20 20 20 20 63 61 73 | 65 20 4f 50 45 4e 3a 0a |     cas|e OPEN:.|
|00003940| 09 69 66 20 28 66 2d 3e | 63 61 6c 6c 62 61 63 6b |.if (f->|callback|
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|00003960| 66 2d 3e 63 61 6c 6c 62 | 61 63 6b 73 2d 3e 64 6f |f->callb|acks->do|
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|00003990| 2f 0a 09 66 2d 3e 73 74 | 61 74 65 20 3d 20 43 4c |/..f->st|ate = CL|
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|000039b0| 6f 72 20 61 20 6d 6f 6d | 65 6e 74 2e 2e 2e 20 2a |or a mom|ent... *|
|000039c0| 2f 0a 09 66 73 6d 5f 61 | 63 74 69 76 65 6f 70 65 |/..fsm_a|ctiveope|
|000039d0| 6e 28 66 29 3b 09 09 2f | 2a 20 52 65 73 74 61 72 |n(f);../|* Restar|
|000039e0| 74 20 2a 2f 0a 09 62 72 | 65 61 6b 3b 0a 20 20 20 |t */..br|eak;.   |
|000039f0| 20 7d 0a 7d 0a 0a 0a 2f | 2a 0a 20 2a 20 66 73 6d | }.}.../|*. * fsm|
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|00003a10| 69 76 65 20 43 6f 6e 66 | 69 67 75 72 65 2d 52 65 |ive Conf|igure-Re|
|00003a20| 6a 2e 0a 20 2a 2f 0a 73 | 74 61 74 69 63 20 76 6f |j.. */.s|tatic vo|
|00003a30| 69 64 0a 20 20 66 73 6d | 5f 72 63 6f 6e 66 72 65 |id.  fsm|_rconfre|
|00003a40| 6a 28 66 2c 20 69 6e 70 | 2c 20 69 64 2c 20 6c 65 |j(f, inp|, id, le|
|00003a50| 6e 29 0a 66 73 6d 20 2a | 66 3b 0a 75 5f 63 68 61 |n).fsm *|f;.u_cha|
|00003a60| 72 20 2a 69 6e 70 3b 0a | 75 5f 63 68 61 72 20 69 |r *inp;.|u_char i|
|00003a70| 64 3b 0a 69 6e 74 20 6c | 65 6e 3b 0a 7b 0a 20 20 |d;.int l|en;.{.  |
|00003a80| 20 20 46 53 4d 44 45 42 | 55 47 28 28 4c 4f 47 5f |  FSMDEB|UG((LOG_|
|00003a90| 49 4e 46 4f 2c 20 22 66 | 73 6d 5f 72 63 6f 6e 66 |INFO, "f|sm_rconf|
|00003aa0| 72 65 6a 28 25 78 29 3a | 20 53 74 61 74 65 20 25 |rej(%x):| State %|
|00003ab0| 64 2e 20 52 63 76 64 20 | 69 64 20 25 64 2e 22 2c |d. Rcvd |id %d.",|
|00003ac0| 0a 09 20 20 20 20 20 20 | 66 2d 3e 70 72 6f 74 6f |..      |f->proto|
|00003ad0| 63 6f 6c 2c 20 66 2d 3e | 73 74 61 74 65 2c 20 69 |col, f->|state, i|
|00003ae0| 64 29 29 0a 0a 20 20 20 | 20 73 77 69 74 63 68 20 |d))..   | switch |
|00003af0| 28 66 2d 3e 73 74 61 74 | 65 29 20 7b 0a 20 20 20 |(f->stat|e) {.   |
|00003b00| 20 20 20 63 61 73 65 20 | 4c 49 53 54 45 4e 3a 0a |   case |LISTEN:.|
|00003b10| 20 20 20 20 20 20 63 61 | 73 65 20 43 4c 4f 53 45 |      ca|se CLOSE|
|00003b20| 44 3a 0a 09 66 73 6d 5f | 73 64 61 74 61 28 66 2c |D:..fsm_|sdata(f,|
|00003b30| 20 54 45 52 4d 41 43 4b | 2c 20 69 64 2c 20 4e 55 | TERMACK|, id, NU|
|00003b40| 4c 4c 2c 20 30 29 3b 0a | 09 62 72 65 61 6b 3b 0a |LL, 0);.|.break;.|
|00003b50| 0a 20 20 20 20 20 20 63 | 61 73 65 20 52 45 51 53 |.      c|ase REQS|
|00003b60| 45 4e 54 3a 0a 20 20 20 | 20 20 20 63 61 73 65 20 |ENT:.   |   case |
|00003b70| 41 43 4b 53 45 4e 54 3a | 0a 09 69 66 20 28 69 64 |ACKSENT:|..if (id|
|00003b80| 20 21 3d 20 66 2d 3e 72 | 65 71 69 64 29 09 09 2f | != f->r|eqid)../|
|00003b90| 2a 20 45 78 70 65 63 74 | 65 64 20 69 64 3f 20 2a |* Expect|ed id? *|
|00003ba0| 2f 0a 09 20 20 20 20 62 | 72 65 61 6b 3b 09 09 09 |/..    b|reak;...|
|00003bb0| 2f 2a 20 4e 6f 70 65 2c | 20 74 6f 73 73 2e 2e 2e |/* Nope,| toss...|
|00003bc0| 20 2a 2f 0a 09 69 66 20 | 28 2b 2b 66 2d 3e 6e 61 | */..if |(++f->na|
|00003bd0| 6b 6c 6f 6f 70 73 20 3e | 20 66 2d 3e 6d 61 78 6e |kloops >| f->maxn|
|00003be0| 61 6b 6c 6f 6f 70 73 29 | 0a 09 20 20 20 20 62 72 |akloops)|..    br|
|00003bf0| 65 61 6b 3b 09 09 09 2f | 2a 20 42 72 65 61 6b 20 |eak;.../|* Break |
|00003c00| 74 68 65 20 6c 6f 6f 70 | 20 2a 2f 0a 09 55 4e 54 |the loop| */..UNT|
|00003c10| 49 4d 45 4f 55 54 28 66 | 73 6d 5f 74 69 6d 65 6f |IMEOUT(f|sm_timeo|
|00003c20| 75 74 2c 20 28 63 61 64 | 64 72 5f 74 29 20 66 29 |ut, (cad|dr_t) f)|
|00003c30| 3b 09 2f 2a 20 43 61 6e | 63 65 6c 20 74 69 6d 65 |;./* Can|cel time|
|00003c40| 6f 75 74 20 2a 2f 0a 09 | 69 66 20 28 66 2d 3e 63 |out */..|if (f->c|
|00003c50| 61 6c 6c 62 61 63 6b 73 | 2d 3e 72 65 6a 63 69 29 |allbacks|->rejci)|
|00003c60| 0a 09 20 20 20 20 28 2a | 66 2d 3e 63 61 6c 6c 62 |..    (*|f->callb|
|00003c70| 61 63 6b 73 2d 3e 72 65 | 6a 63 69 29 28 66 2c 20 |acks->re|jci)(f, |
|00003c80| 69 6e 70 2c 20 6c 65 6e | 29 3b 0a 09 66 73 6d 5f |inp, len|);..fsm_|
|00003c90| 73 63 6f 6e 66 72 65 71 | 28 66 29 3b 09 09 2f 2a |sconfreq|(f);../*|
|00003ca0| 20 53 65 6e 64 20 43 6f | 6e 66 69 67 75 72 65 2d | Send Co|nfigure-|
|00003cb0| 52 65 71 75 65 73 74 20 | 2a 2f 0a 09 54 49 4d 45 |Request |*/..TIME|
|00003cc0| 4f 55 54 28 66 73 6d 5f | 74 69 6d 65 6f 75 74 2c |OUT(fsm_|timeout,|
|00003cd0| 20 28 63 61 64 64 72 5f | 74 29 20 66 2c 20 66 2d | (caddr_|t) f, f-|
|00003ce0| 3e 74 69 6d 65 6f 75 74 | 74 69 6d 65 29 3b 0a 09 |>timeout|time);..|
|00003cf0| 2b 2b 66 2d 3e 72 65 74 | 72 61 6e 73 6d 69 74 73 |++f->ret|ransmits|
|00003d00| 3b 0a 09 62 72 65 61 6b | 3b 0a 0a 20 20 20 20 20 |;..break|;..     |
|00003d10| 20 63 61 73 65 20 41 43 | 4b 52 43 56 44 3a 0a 09 | case AC|KRCVD:..|
|00003d20| 66 2d 3e 73 74 61 74 65 | 20 3d 20 52 45 51 53 45 |f->state| = REQSE|
|00003d30| 4e 54 3b 09 09 2f 2a 20 | 57 61 69 74 20 66 6f 72 |NT;../* |Wait for|
|00003d40| 20 74 69 6d 65 6f 75 74 | 20 74 6f 20 72 65 74 72 | timeout| to retr|
|00003d50| 61 6e 73 6d 69 74 20 2a | 2f 0a 09 62 72 65 61 6b |ansmit *|/..break|
|00003d60| 3b 0a 0a 20 20 20 20 20 | 20 63 61 73 65 20 4f 50 |;..     | case OP|
|00003d70| 45 4e 3a 0a 09 66 2d 3e | 73 74 61 74 65 20 3d 20 |EN:..f->|state = |
|00003d80| 43 4c 4f 53 45 44 3b 09 | 09 2f 2a 20 4f 6e 6c 79 |CLOSED;.|./* Only|
|00003d90| 20 66 6f 72 20 61 20 6d | 6f 6d 65 6e 74 2e 2e 2e | for a m|oment...|
|00003da0| 20 2a 2f 0a 09 66 73 6d | 5f 61 63 74 69 76 65 6f | */..fsm|_activeo|
|00003db0| 70 65 6e 28 66 29 3b 09 | 09 2f 2a 20 52 65 73 74 |pen(f);.|./* Rest|
|00003dc0| 61 72 74 20 2a 2f 0a 09 | 62 72 65 61 6b 3b 0a 20 |art */..|break;. |
|00003dd0| 20 20 20 7d 0a 7d 0a 0a | 0a 2f 2a 0a 20 2a 20 66 |   }.}..|./*. * f|
|00003de0| 73 6d 5f 72 74 65 72 6d | 72 65 71 20 2d 20 52 65 |sm_rterm|req - Re|
|00003df0| 63 65 69 76 65 20 54 65 | 72 6d 69 6e 61 74 65 2d |ceive Te|rminate-|
|00003e00| 52 65 71 2e 0a 20 2a 2f | 0a 73 74 61 74 69 63 20 |Req.. */|.static |
|00003e10| 76 6f 69 64 0a 20 20 66 | 73 6d 5f 72 74 65 72 6d |void.  f|sm_rterm|
|00003e20| 72 65 71 28 66 2c 20 69 | 64 29 0a 66 73 6d 20 2a |req(f, i|d).fsm *|
|00003e30| 66 3b 0a 75 5f 63 68 61 | 72 20 69 64 3b 0a 7b 0a |f;.u_cha|r id;.{.|
|00003e40| 20 20 20 20 46 53 4d 44 | 45 42 55 47 28 28 4c 4f |    FSMD|EBUG((LO|
|00003e50| 47 5f 49 4e 46 4f 2c 20 | 22 66 73 6d 5f 72 74 65 |G_INFO, |"fsm_rte|
|00003e60| 72 6d 72 65 71 28 25 78 | 29 3a 20 53 74 61 74 65 |rmreq(%x|): State|
|00003e70| 20 25 64 2e 20 52 63 76 | 64 20 69 64 20 25 64 2e | %d. Rcv|d id %d.|
|00003e80| 22 2c 0a 09 20 20 20 20 | 20 20 66 2d 3e 70 72 6f |",..    |  f->pro|
|00003e90| 74 6f 63 6f 6c 2c 20 66 | 2d 3e 73 74 61 74 65 2c |tocol, f|->state,|
|00003ea0| 20 69 64 29 29 0a 0a 20 | 20 20 20 66 73 6d 5f 73 | id)).. |   fsm_s|
|00003eb0| 64 61 74 61 28 66 2c 20 | 54 45 52 4d 41 43 4b 2c |data(f, |TERMACK,|
|00003ec0| 20 69 64 2c 20 4e 55 4c | 4c 2c 20 30 29 3b 0a 20 | id, NUL|L, 0);. |
|00003ed0| 20 20 20 73 77 69 74 63 | 68 20 28 66 2d 3e 73 74 |   switc|h (f->st|
|00003ee0| 61 74 65 29 20 7b 0a 20 | 20 20 20 20 20 63 61 73 |ate) {. |     cas|
|00003ef0| 65 20 41 43 4b 52 43 56 | 44 3a 0a 20 20 20 20 20 |e ACKRCV|D:.     |
|00003f00| 20 63 61 73 65 20 41 43 | 4b 53 45 4e 54 3a 0a 09 | case AC|KSENT:..|
|00003f10| 66 2d 3e 73 74 61 74 65 | 20 3d 20 52 45 51 53 45 |f->state| = REQSE|
|00003f20| 4e 54 3b 09 09 2f 2a 20 | 53 74 61 72 74 20 6f 76 |NT;../* |Start ov|
|00003f30| 65 72 20 62 75 74 20 6b | 65 65 70 20 74 72 79 69 |er but k|eep tryi|
|00003f40| 6e 67 20 2a 2f 0a 09 62 | 72 65 61 6b 3b 0a 0a 20 |ng */..b|reak;.. |
|00003f50| 20 20 20 20 20 63 61 73 | 65 20 4f 50 45 4e 3a 0a |     cas|e OPEN:.|
|00003f60| 09 69 66 20 28 66 2d 3e | 63 61 6c 6c 62 61 63 6b |.if (f->|callback|
|00003f70| 73 2d 3e 64 6f 77 6e 29 | 0a 09 20 20 20 20 28 2a |s->down)|..    (*|
|00003f80| 66 2d 3e 63 61 6c 6c 62 | 61 63 6b 73 2d 3e 64 6f |f->callb|acks->do|
|00003f90| 77 6e 29 28 66 29 3b 09 | 2f 2a 20 49 6e 66 6f 72 |wn)(f);.|/* Infor|
|00003fa0| 6d 20 75 70 70 65 72 20 | 6c 61 79 65 72 73 20 2a |m upper |layers *|
|00003fb0| 2f 0a 09 66 2d 3e 73 74 | 61 74 65 20 3d 20 43 4c |/..f->st|ate = CL|
|00003fc0| 4f 53 45 44 3b 0a 09 69 | 66 20 28 66 2d 3e 63 61 |OSED;..i|f (f->ca|
|00003fd0| 6c 6c 62 61 63 6b 73 2d | 3e 63 6c 6f 73 65 64 29 |llbacks-|>closed)|
|00003fe0| 0a 09 20 20 20 20 28 2a | 66 2d 3e 63 61 6c 6c 62 |..    (*|f->callb|
|00003ff0| 61 63 6b 73 2d 3e 63 6c | 6f 73 65 64 29 28 66 29 |acks->cl|osed)(f)|
|00004000| 3b 09 2f 2a 20 45 78 69 | 74 2f 72 65 73 74 61 72 |;./* Exi|t/restar|
|00004010| 74 2f 65 74 63 2e 20 2a | 2f 0a 09 62 72 65 61 6b |t/etc. *|/..break|
|00004020| 3b 0a 20 20 20 20 7d 0a | 7d 0a 0a 0a 2f 2a 0a 20 |;.    }.|}.../*. |
|00004030| 2a 20 66 73 6d 5f 72 74 | 65 72 6d 61 63 6b 20 2d |* fsm_rt|ermack -|
|00004040| 20 52 65 63 65 69 76 65 | 20 54 65 72 6d 69 6e 61 | Receive| Termina|
|00004050| 74 65 2d 41 63 6b 2e 0a | 20 2a 2f 0a 73 74 61 74 |te-Ack..| */.stat|
|00004060| 69 63 20 76 6f 69 64 0a | 20 20 66 73 6d 5f 72 74 |ic void.|  fsm_rt|
|00004070| 65 72 6d 61 63 6b 28 66 | 29 0a 66 73 6d 20 2a 66 |ermack(f|).fsm *f|
|00004080| 3b 0a 7b 0a 20 20 20 20 | 46 53 4d 44 45 42 55 47 |;.{.    |FSMDEBUG|
|00004090| 28 28 4c 4f 47 5f 49 4e | 46 4f 2c 20 22 66 73 6d |((LOG_IN|FO, "fsm|
|000040a0| 5f 72 74 65 72 6d 61 63 | 6b 28 25 78 29 2e 20 53 |_rtermac|k(%x). S|
|000040b0| 74 61 74 65 20 25 64 2e | 22 2c 20 66 2d 3e 70 72 |tate %d.|", f->pr|
|000040c0| 6f 74 6f 63 6f 6c 2c 20 | 66 2d 3e 73 74 61 74 65 |otocol, |f->state|
|000040d0| 29 29 0a 0a 20 20 20 20 | 73 77 69 74 63 68 20 28 |))..    |switch (|
|000040e0| 66 2d 3e 73 74 61 74 65 | 29 20 7b 0a 20 20 20 20 |f->state|) {.    |
|000040f0| 20 20 63 61 73 65 20 4f | 50 45 4e 3a 0a 09 69 66 |  case O|PEN:..if|
|00004100| 20 28 66 2d 3e 63 61 6c | 6c 62 61 63 6b 73 2d 3e | (f->cal|lbacks->|
|00004110| 64 6f 77 6e 29 0a 09 20 | 20 20 20 28 2a 66 2d 3e |down).. |   (*f->|
|00004120| 63 61 6c 6c 62 61 63 6b | 73 2d 3e 64 6f 77 6e 29 |callback|s->down)|
|00004130| 28 66 29 3b 09 2f 2a 20 | 49 6e 66 6f 72 6d 20 75 |(f);./* |Inform u|
|00004140| 70 70 65 72 20 6c 61 79 | 65 72 73 20 2a 2f 0a 09 |pper lay|ers */..|
|00004150| 66 2d 3e 73 74 61 74 65 | 20 3d 20 43 4c 4f 53 45 |f->state| = CLOSE|
|00004160| 44 3b 0a 09 69 66 20 28 | 66 2d 3e 63 61 6c 6c 62 |D;..if (|f->callb|
|00004170| 61 63 6b 73 2d 3e 63 6c | 6f 73 65 64 29 0a 09 20 |acks->cl|osed).. |
|00004180| 20 20 20 28 2a 66 2d 3e | 63 61 6c 6c 62 61 63 6b |   (*f->|callback|
|00004190| 73 2d 3e 63 6c 6f 73 65 | 64 29 28 66 29 3b 09 2f |s->close|d)(f);./|
|000041a0| 2a 20 45 78 69 74 2f 72 | 65 73 74 61 72 74 2f 65 |* Exit/r|estart/e|
|000041b0| 74 63 2e 20 2a 2f 0a 09 | 62 72 65 61 6b 3b 0a 0a |tc. */..|break;..|
|000041c0| 20 20 20 20 20 20 63 61 | 73 65 20 54 45 52 4d 53 |      ca|se TERMS|
|000041d0| 45 4e 54 3a 0a 09 55 4e | 54 49 4d 45 4f 55 54 28 |ENT:..UN|TIMEOUT(|
|000041e0| 66 73 6d 5f 74 69 6d 65 | 6f 75 74 2c 20 28 63 61 |fsm_time|out, (ca|
|000041f0| 64 64 72 5f 74 29 20 66 | 29 3b 09 2f 2a 20 43 61 |ddr_t) f|);./* Ca|
|00004200| 6e 63 65 6c 20 74 69 6d | 65 6f 75 74 20 2a 2f 0a |ncel tim|eout */.|
|00004210| 09 66 2d 3e 73 74 61 74 | 65 20 3d 20 43 4c 4f 53 |.f->stat|e = CLOS|
|00004220| 45 44 3b 0a 09 69 66 20 | 28 66 2d 3e 63 61 6c 6c |ED;..if |(f->call|
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|00004240| 20 20 20 20 28 2a 66 2d | 3e 63 61 6c 6c 62 61 63 |    (*f-|>callbac|
|00004250| 6b 73 2d 3e 63 6c 6f 73 | 65 64 29 28 66 29 3b 09 |ks->clos|ed)(f);.|
|00004260| 2f 2a 20 45 78 69 74 2f | 72 65 73 74 61 72 74 2f |/* Exit/|restart/|
|00004270| 65 74 63 2e 20 2a 2f 0a | 09 62 72 65 61 6b 3b 0a |etc. */.|.break;.|
|00004280| 20 20 20 20 7d 0a 7d 0a | 0a 0a 2f 2a 0a 20 2a 20 |    }.}.|../*. * |
|00004290| 66 73 6d 5f 72 63 6f 64 | 65 72 65 6a 20 2d 20 52 |fsm_rcod|erej - R|
|000042a0| 65 63 65 69 76 65 20 61 | 6e 20 43 6f 64 65 2d 52 |eceive a|n Code-R|
|000042b0| 65 6a 65 63 74 2e 0a 20 | 2a 2f 0a 73 74 61 74 69 |eject.. |*/.stati|
|000042c0| 63 20 76 6f 69 64 0a 20 | 20 66 73 6d 5f 72 63 6f |c void. | fsm_rco|
|000042d0| 64 65 72 65 6a 28 66 2c | 20 69 6e 70 2c 20 6c 65 |derej(f,| inp, le|
|000042e0| 6e 29 0a 66 73 6d 20 2a | 66 3b 0a 75 5f 63 68 61 |n).fsm *|f;.u_cha|
|000042f0| 72 20 2a 69 6e 70 3b 0a | 69 6e 74 20 6c 65 6e 3b |r *inp;.|int len;|
|00004300| 0a 7b 0a 20 20 20 20 75 | 5f 63 68 61 72 20 63 6f |.{.    u|_char co|
|00004310| 64 65 3b 0a 0a 20 20 20 | 20 46 53 4d 44 45 42 55 |de;..   | FSMDEBU|
|00004320| 47 28 28 4c 4f 47 5f 49 | 4e 46 4f 2c 20 22 66 73 |G((LOG_I|NFO, "fs|
|00004330| 6d 5f 72 63 6f 64 65 72 | 65 6a 28 25 78 29 2e 22 |m_rcoder|ej(%x)."|
|00004340| 2c 20 66 2d 3e 70 72 6f | 74 6f 63 6f 6c 29 29 0a |, f->pro|tocol)).|
|00004350| 0a 20 20 20 20 69 66 20 | 28 6c 65 6e 20 3c 20 73 |.    if |(len < s|
|00004360| 69 7a 65 6f 66 20 28 75 | 5f 63 68 61 72 29 29 20 |izeof (u|_char)) |
|00004370| 7b 0a 09 46 53 4d 44 45 | 42 55 47 28 28 4c 4f 47 |{..FSMDE|BUG((LOG|
|00004380| 5f 49 4e 46 4f 2c 0a 09 | 09 20 20 22 66 73 6d 5f |_INFO,..|.  "fsm_|
|00004390| 72 63 6f 64 65 72 65 6a | 3a 20 52 63 76 64 20 73 |rcoderej|: Rcvd s|
|000043a0| 68 6f 72 74 20 43 6f 64 | 65 2d 52 65 6a 65 63 74 |hort Cod|e-Reject|
|000043b0| 20 70 61 63 6b 65 74 21 | 22 29 29 0a 09 72 65 74 | packet!|"))..ret|
|000043c0| 75 72 6e 3b 0a 20 20 20 | 20 7d 0a 20 20 20 20 47 |urn;.   | }.    G|
|000043d0| 45 54 43 48 41 52 28 63 | 6f 64 65 2c 20 69 6e 70 |ETCHAR(c|ode, inp|
|000043e0| 29 3b 0a 20 20 20 20 46 | 53 4d 44 45 42 55 47 28 |);.    F|SMDEBUG(|
|000043f0| 28 4c 4f 47 5f 49 4e 46 | 4f 2c 0a 09 20 20 20 20 |(LOG_INF|O,..    |
|00004400| 20 20 22 66 73 6d 5f 72 | 63 6f 64 65 72 65 6a 3a |  "fsm_r|coderej:|
|00004410| 20 52 63 76 64 20 43 6f | 64 65 2d 52 65 6a 65 63 | Rcvd Co|de-Rejec|
|00004420| 74 20 66 6f 72 20 63 6f | 64 65 20 25 64 21 22 2c |t for co|de %d!",|
|00004430| 0a 09 20 20 20 20 20 20 | 63 6f 64 65 29 29 0a 7d |..      |code)).}|
|00004440| 0a 0a 0a 2f 2a 0a 20 2a | 20 66 73 6d 5f 72 70 72 |.../*. *| fsm_rpr|
|00004450| 6f 74 72 65 6a 20 2d 20 | 52 65 63 65 69 76 65 20 |otrej - |Receive |
|00004460| 61 6e 20 50 72 6f 74 6f | 63 6f 6c 2d 52 65 6a 65 |an Proto|col-Reje|
|00004470| 63 74 2e 0a 20 2a 0a 20 | 2a 20 46 69 67 75 72 65 |ct.. *. |* Figure|
|00004480| 20 6f 75 74 20 77 68 69 | 63 68 20 70 72 6f 74 6f | out whi|ch proto|
|00004490| 63 6f 6c 20 69 73 20 72 | 65 6a 65 63 74 65 64 20 |col is r|ejected |
|000044a0| 61 6e 64 20 69 6e 66 6f | 72 6d 20 69 74 2e 0a 20 |and info|rm it.. |
|000044b0| 2a 2f 0a 73 74 61 74 69 | 63 20 76 6f 69 64 0a 20 |*/.stati|c void. |
|000044c0| 20 66 73 6d 5f 72 70 72 | 6f 74 72 65 6a 28 66 2c | fsm_rpr|otrej(f,|
|000044d0| 20 69 6e 70 2c 20 6c 65 | 6e 29 0a 66 73 6d 20 2a | inp, le|n).fsm *|
|000044e0| 66 3b 0a 75 5f 63 68 61 | 72 20 2a 69 6e 70 3b 0a |f;.u_cha|r *inp;.|
|000044f0| 69 6e 74 20 6c 65 6e 3b | 0a 7b 0a 20 20 20 20 75 |int len;|.{.    u|
|00004500| 5f 73 68 6f 72 74 20 70 | 72 6f 74 3b 0a 0a 20 20 |_short p|rot;..  |
|00004510| 20 20 46 53 4d 44 45 42 | 55 47 28 28 4c 4f 47 5f |  FSMDEB|UG((LOG_|
|00004520| 49 4e 46 4f 2c 20 22 66 | 73 6d 5f 72 70 72 6f 74 |INFO, "f|sm_rprot|
|00004530| 72 65 6a 2e 22 29 29 0a | 0a 20 20 20 20 69 66 20 |rej.")).|.    if |
|00004540| 28 6c 65 6e 20 3c 20 73 | 69 7a 65 6f 66 20 28 75 |(len < s|izeof (u|
|00004550| 5f 73 68 6f 72 74 29 29 | 20 7b 0a 09 46 53 4d 44 |_short))| {..FSMD|
|00004560| 45 42 55 47 28 28 4c 4f | 47 5f 49 4e 46 4f 2c 0a |EBUG((LO|G_INFO,.|
|00004570| 09 09 20 20 22 66 73 6d | 5f 72 70 72 6f 74 72 65 |..  "fsm|_rprotre|
|00004580| 6a 3a 20 52 63 76 64 20 | 73 68 6f 72 74 20 50 72 |j: Rcvd |short Pr|
|00004590| 6f 74 6f 63 6f 6c 2d 52 | 65 6a 65 63 74 20 70 61 |otocol-R|eject pa|
|000045a0| 63 6b 65 74 21 22 29 29 | 0a 09 72 65 74 75 72 6e |cket!"))|..return|
|000045b0| 3b 0a 20 20 20 20 7d 0a | 20 20 20 20 69 66 20 28 |;.    }.|    if (|
|000045c0| 66 2d 3e 70 72 6f 74 6f | 63 6f 6c 20 21 3d 20 4c |f->proto|col != L|
|000045d0| 43 50 29 20 7b 09 09 2f | 2a 20 4f 6e 6c 79 20 76 |CP) {../|* Only v|
|000045e0| 61 6c 69 64 20 66 6f 72 | 20 4c 43 50 20 2a 2f 0a |alid for| LCP */.|
|000045f0| 09 46 53 4d 44 45 42 55 | 47 28 28 4c 4f 47 5f 49 |.FSMDEBU|G((LOG_I|
|00004600| 4e 46 4f 2c 0a 09 09 20 | 20 22 66 73 6d 5f 72 70 |NFO,... | "fsm_rp|
|00004610| 72 6f 74 72 65 6a 3a 20 | 52 63 76 64 20 6e 6f 6e |rotrej: |Rcvd non|
|00004620| 2d 4c 43 50 20 50 72 6f | 74 6f 63 6f 6c 2d 52 65 |-LCP Pro|tocol-Re|
|00004630| 6a 65 63 74 21 22 29 29 | 0a 09 72 65 74 75 72 6e |ject!"))|..return|
|00004640| 3b 0a 20 20 20 20 7d 0a | 0a 20 20 20 20 47 45 54 |;.    }.|.    GET|
|00004650| 53 48 4f 52 54 28 70 72 | 6f 74 2c 20 69 6e 70 29 |SHORT(pr|ot, inp)|
|00004660| 3b 0a 0a 20 20 20 20 46 | 53 4d 44 45 42 55 47 28 |;..    F|SMDEBUG(|
|00004670| 28 4c 4f 47 5f 49 4e 46 | 4f 2c 0a 09 20 20 20 20 |(LOG_INF|O,..    |
|00004680| 20 20 22 66 73 6d 5f 72 | 70 72 6f 74 72 65 6a 3a |  "fsm_r|protrej:|
|00004690| 20 52 63 76 64 20 50 72 | 6f 74 6f 63 6f 6c 2d 52 | Rcvd Pr|otocol-R|
|000046a0| 65 6a 65 63 74 20 70 61 | 63 6b 65 74 20 66 6f 72 |eject pa|cket for|
|000046b0| 20 25 78 21 22 2c 0a 09 | 20 20 20 20 20 20 70 72 | %x!",..|      pr|
|000046c0| 6f 74 29 29 0a 20 20 20 | 20 44 45 4d 55 58 50 52 |ot)).   | DEMUXPR|
|000046d0| 4f 54 52 45 4a 28 66 2d | 3e 75 6e 69 74 2c 20 70 |OTREJ(f-|>unit, p|
|000046e0| 72 6f 74 29 3b 09 2f 2a | 20 49 6e 66 6f 72 6d 20 |rot);./*| Inform |
|000046f0| 70 72 6f 74 6f 63 6f 6c | 20 2a 2f 0a 7d 0a 0a 0a |protocol| */.}...|
|00004700| 2f 2a 0a 20 2a 20 66 73 | 6d 5f 73 63 6f 6e 66 72 |/*. * fs|m_sconfr|
|00004710| 65 71 20 2d 20 53 65 6e | 64 20 61 20 43 6f 6e 66 |eq - Sen|d a Conf|
|00004720| 69 67 75 72 65 2d 52 65 | 71 75 65 73 74 2e 0a 20 |igure-Re|quest.. |
|00004730| 2a 2f 0a 73 74 61 74 69 | 63 20 76 6f 69 64 0a 20 |*/.stati|c void. |
|00004740| 20 66 73 6d 5f 73 63 6f | 6e 66 72 65 71 28 66 29 | fsm_sco|nfreq(f)|
|00004750| 0a 66 73 6d 20 2a 66 3b | 0a 7b 0a 20 20 20 20 75 |.fsm *f;|.{.    u|
|00004760| 5f 63 68 61 72 20 2a 6f | 75 74 70 3b 0a 20 20 20 |_char *o|utp;.   |
|00004770| 20 69 6e 74 20 6f 75 74 | 6c 65 6e 3b 0a 0a 20 20 | int out|len;..  |
|00004780| 20 20 6f 75 74 6c 65 6e | 20 3d 20 48 45 41 44 45 |  outlen| = HEADE|
|00004790| 52 4c 45 4e 20 2b 20 28 | 66 2d 3e 63 61 6c 6c 62 |RLEN + (|f->callb|
|000047a0| 61 63 6b 73 2d 3e 63 69 | 6c 65 6e 20 3f 20 28 2a |acks->ci|len ? (*|
|000047b0| 66 2d 3e 63 61 6c 6c 62 | 61 63 6b 73 2d 3e 63 69 |f->callb|acks->ci|
|000047c0| 6c 65 6e 29 28 66 29 20 | 3a 20 30 29 3b 0a 20 20 |len)(f) |: 0);.  |
|000047d0| 20 20 2f 2a 20 58 58 58 | 20 41 64 6a 75 73 74 20 |  /* XXX| Adjust |
|000047e0| 6f 75 74 6c 65 6e 20 74 | 6f 20 4d 54 55 20 2a 2f |outlen t|o MTU */|
|000047f0| 0a 20 20 20 20 6f 75 74 | 70 20 3d 20 6f 75 74 70 |.    out|p = outp|
|00004800| 61 63 6b 65 74 5f 62 75 | 66 3b 0a 20 20 20 20 4d |acket_bu|f;.    M|
|00004810| 41 4b 45 48 45 41 44 45 | 52 28 6f 75 74 70 2c 20 |AKEHEADE|R(outp, |
|00004820| 66 2d 3e 70 72 6f 74 6f | 63 6f 6c 29 3b 0a 0a 20 |f->proto|col);.. |
|00004830| 20 20 20 50 55 54 43 48 | 41 52 28 43 4f 4e 46 52 |   PUTCH|AR(CONFR|
|00004840| 45 51 2c 20 6f 75 74 70 | 29 3b 0a 20 20 20 20 50 |EQ, outp|);.    P|
|00004850| 55 54 43 48 41 52 28 66 | 2d 3e 72 65 71 69 64 20 |UTCHAR(f|->reqid |
|00004860| 3d 20 2b 2b 66 2d 3e 69 | 64 2c 20 6f 75 74 70 29 |= ++f->i|d, outp)|
|00004870| 3b 0a 20 20 20 20 50 55 | 54 53 48 4f 52 54 28 6f |;.    PU|TSHORT(o|
|00004880| 75 74 6c 65 6e 2c 20 6f | 75 74 70 29 3b 0a 20 20 |utlen, o|utp);.  |
|00004890| 20 20 69 66 20 28 66 2d | 3e 63 61 6c 6c 62 61 63 |  if (f-|>callbac|
|000048a0| 6b 73 2d 3e 63 69 6c 65 | 6e 20 26 26 20 66 2d 3e |ks->cile|n && f->|
|000048b0| 63 61 6c 6c 62 61 63 6b | 73 2d 3e 61 64 64 63 69 |callback|s->addci|
|000048c0| 29 0a 09 28 2a 66 2d 3e | 63 61 6c 6c 62 61 63 6b |)..(*f->|callback|
|000048d0| 73 2d 3e 61 64 64 63 69 | 29 28 66 2c 20 6f 75 74 |s->addci|)(f, out|
|000048e0| 70 29 3b 0a 20 20 20 20 | 6f 75 74 70 75 74 28 66 |p);.    |output(f|
|000048f0| 2d 3e 75 6e 69 74 2c 20 | 6f 75 74 70 61 63 6b 65 |->unit, |outpacke|
|00004900| 74 5f 62 75 66 2c 20 6f | 75 74 6c 65 6e 20 2b 20 |t_buf, o|utlen + |
|00004910| 44 4c 4c 48 45 41 44 45 | 52 4c 45 4e 29 3b 0a 0a |DLLHEADE|RLEN);..|
|00004920| 20 20 20 20 46 53 4d 44 | 45 42 55 47 28 28 4c 4f |    FSMD|EBUG((LO|
|00004930| 47 5f 49 4e 46 4f 2c 20 | 22 66 73 6d 5f 73 63 6f |G_INFO, |"fsm_sco|
|00004940| 6e 66 72 65 71 28 25 78 | 29 3a 20 53 74 61 74 65 |nfreq(%x|): State|
|00004950| 20 25 64 2e 20 53 65 6e | 74 20 69 64 20 25 64 2e | %d. Sen|t id %d.|
|00004960| 22 2c 0a 09 20 20 20 20 | 20 20 66 2d 3e 70 72 6f |",..    |  f->pro|
|00004970| 74 6f 63 6f 6c 2c 20 66 | 2d 3e 73 74 61 74 65 2c |tocol, f|->state,|
|00004980| 20 66 2d 3e 72 65 71 69 | 64 29 29 0a 7d 0a 0a 0a | f->reqi|d)).}...|
|00004990| 2f 2a 0a 20 2a 20 66 73 | 6d 5f 73 64 61 74 61 20 |/*. * fs|m_sdata |
|000049a0| 2d 20 53 65 6e 64 20 73 | 6f 6d 65 20 64 61 74 61 |- Send s|ome data|
|000049b0| 2e 0a 20 2a 0a 20 2a 20 | 55 73 65 64 20 66 6f 72 |.. *. * |Used for|
|000049c0| 20 54 65 72 6d 69 6e 61 | 74 65 2d 52 65 71 75 65 | Termina|te-Reque|
|000049d0| 73 74 2c 20 54 65 72 6d | 69 6e 61 74 65 2d 41 63 |st, Term|inate-Ac|
|000049e0| 6b 2c 20 43 6f 64 65 2d | 52 65 6a 65 63 74 2c 20 |k, Code-|Reject, |
|000049f0| 50 72 6f 74 6f 63 6f 6c | 2d 52 65 6a 65 63 74 2c |Protocol|-Reject,|
|00004a00| 0a 20 2a 20 45 63 68 6f | 2d 52 65 71 75 65 73 74 |. * Echo|-Request|
|00004a10| 2c 20 61 6e 64 20 44 69 | 73 63 61 72 64 2d 52 65 |, and Di|scard-Re|
|00004a20| 71 75 65 73 74 2e 0a 20 | 2a 2f 0a 76 6f 69 64 0a |quest.. |*/.void.|
|00004a30| 20 20 66 73 6d 5f 73 64 | 61 74 61 28 66 2c 20 63 |  fsm_sd|ata(f, c|
|00004a40| 6f 64 65 2c 20 69 64 2c | 20 64 61 74 61 2c 20 64 |ode, id,| data, d|
|00004a50| 61 74 61 6c 65 6e 29 0a | 66 73 6d 20 2a 66 3b 0a |atalen).|fsm *f;.|
|00004a60| 75 5f 63 68 61 72 20 63 | 6f 64 65 2c 20 69 64 3b |u_char c|ode, id;|
|00004a70| 0a 75 5f 63 68 61 72 20 | 2a 64 61 74 61 3b 0a 69 |.u_char |*data;.i|
|00004a80| 6e 74 20 64 61 74 61 6c | 65 6e 3b 0a 7b 0a 20 20 |nt datal|en;.{.  |
|00004a90| 20 20 75 5f 63 68 61 72 | 20 2a 6f 75 74 70 3b 0a |  u_char| *outp;.|
|00004aa0| 20 20 20 20 69 6e 74 20 | 6f 75 74 6c 65 6e 3b 0a |    int |outlen;.|
|00004ab0| 0a 20 20 20 20 2f 2a 20 | 41 64 6a 75 73 74 20 6c |.    /* |Adjust l|
|00004ac0| 65 6e 67 74 68 20 74 6f | 20 62 65 20 73 6d 61 6c |ength to| be smal|
|00004ad0| 6c 65 72 20 74 68 61 6e | 20 4d 54 55 20 2a 2f 0a |ler than| MTU */.|
|00004ae0| 20 20 20 20 69 66 20 28 | 64 61 74 61 6c 65 6e 20 |    if (|datalen |
|00004af0| 3e 20 4d 54 55 20 2d 20 | 48 45 41 44 45 52 4c 45 |> MTU - |HEADERLE|
|00004b00| 4e 29 0a 09 64 61 74 61 | 6c 65 6e 20 3d 20 4d 54 |N)..data|len = MT|
|00004b10| 55 20 2d 20 48 45 41 44 | 45 52 4c 45 4e 3b 0a 20 |U - HEAD|ERLEN;. |
|00004b20| 20 20 20 6f 75 74 6c 65 | 6e 20 3d 20 64 61 74 61 |   outle|n = data|
|00004b30| 6c 65 6e 20 2b 20 48 45 | 41 44 45 52 4c 45 4e 3b |len + HE|ADERLEN;|
|00004b40| 0a 20 20 20 20 6f 75 74 | 70 20 3d 20 6f 75 74 70 |.    out|p = outp|
|00004b50| 61 63 6b 65 74 5f 62 75 | 66 3b 0a 20 20 20 20 4d |acket_bu|f;.    M|
|00004b60| 41 4b 45 48 45 41 44 45 | 52 28 6f 75 74 70 2c 20 |AKEHEADE|R(outp, |
|00004b70| 66 2d 3e 70 72 6f 74 6f | 63 6f 6c 29 3b 0a 20 20 |f->proto|col);.  |
|00004b80| 20 20 50 55 54 43 48 41 | 52 28 63 6f 64 65 2c 20 |  PUTCHA|R(code, |
|00004b90| 6f 75 74 70 29 3b 0a 20 | 20 20 20 50 55 54 43 48 |outp);. |   PUTCH|
|00004ba0| 41 52 28 69 64 2c 20 6f | 75 74 70 29 3b 0a 20 20 |AR(id, o|utp);.  |
|00004bb0| 20 20 50 55 54 53 48 4f | 52 54 28 6f 75 74 6c 65 |  PUTSHO|RT(outle|
|00004bc0| 6e 2c 20 6f 75 74 70 29 | 3b 0a 20 20 20 20 69 66 |n, outp)|;.    if|
|00004bd0| 20 28 64 61 74 61 6c 65 | 6e 29 0a 09 42 43 4f 50 | (datale|n)..BCOP|
|00004be0| 59 28 64 61 74 61 2c 20 | 6f 75 74 70 2c 20 64 61 |Y(data, |outp, da|
|00004bf0| 74 61 6c 65 6e 29 3b 0a | 20 20 20 20 6f 75 74 70 |talen);.|    outp|
|00004c00| 75 74 28 66 2d 3e 75 6e | 69 74 2c 20 6f 75 74 70 |ut(f->un|it, outp|
|00004c10| 61 63 6b 65 74 5f 62 75 | 66 2c 20 6f 75 74 6c 65 |acket_bu|f, outle|
|00004c20| 6e 20 2b 20 44 4c 4c 48 | 45 41 44 45 52 4c 45 4e |n + DLLH|EADERLEN|
|00004c30| 29 3b 0a 0a 20 20 20 20 | 46 53 4d 44 45 42 55 47 |);..    |FSMDEBUG|
|00004c40| 28 28 4c 4f 47 5f 49 4e | 46 4f 2c 20 22 66 73 6d |((LOG_IN|FO, "fsm|
|00004c50| 5f 73 64 61 74 61 28 25 | 78 29 3a 20 53 74 61 74 |_sdata(%|x): Stat|
|00004c60| 65 20 25 64 2e 20 53 65 | 6e 74 20 63 6f 64 65 20 |e %d. Se|nt code |
|00004c70| 25 64 2c 20 69 64 20 25 | 64 2e 22 2c 0a 09 20 20 |%d, id %|d.",..  |
|00004c80| 20 20 20 20 66 2d 3e 70 | 72 6f 74 6f 63 6f 6c 2c |    f->p|rotocol,|
|00004c90| 20 66 2d 3e 73 74 61 74 | 65 2c 20 63 6f 64 65 2c | f->stat|e, code,|
|00004ca0| 20 69 64 29 29 0a 7d 0a | 28 28 4c 4f 47 5f 49 4e | id)).}.|((LOG_IN|
|00004cb0| 46 4f 2c 20 22 66 73 6d | 5f 72 65 63 68 6f 72 65 |FO, "fsm|_rechore|
|00004cc0| 71 28 25 78 29 3a 20 53 | 74 61 74 65 20 25 64 2e |q(%x): S|tate %d.|
|00004cd0| 20 52 63 76 64 20 69 64 | 20 25 64 2e 22 2c 0a 09 | Rcvd id| %d.",..|
|00004ce0| 20 20 20 20 20 20 66 2d | 3e 70 72 6f 74 6f 63 6f |      f-|>protoco|
|00004cf0| 6c 2c 20 66 2d 3e 73 74 | 61 74 65 2c 20 69 64 29 |l, f->st|ate, id)|
|00004d00| 29 0a 20 20 20 20 0a 20 | 20 20 20 73 77 69 74 63 |).    . |   switc|
|00004d10| 68 20 28 66 2d 3e 73 74 | 61 74 65 29 20 7b 0a 20 |h (f->st|ate) {. |
|00004d20| 20 20 20 63 61 73 65 20 | 43 4c 4f 53 45 44 3a 0a |   case |CLOSED:.|
|00004d30| 20 20 20 20 63 61 73 65 | 20 4c 49 53 54 45 4e 3a |    case| LISTEN:|
|00004d40| 0a 20 20 20 20 20 20 66 | 73 6d 5f 73 64 61 74 61 |.      f|sm_sdata|
|00004d50| 28 66 2c 20 54 45 52 4d | 41 43 4b 2c 20 69 64 2c |(f, TERM|ACK, id,|
|00004d60| 20 4e 55 4c 4c 2c 20 30 | 29 3b 0a 20 20 20 20 20 | NULL, 0|);.     |
|00004d70| 20 62 72 65 61 6b 3b 0a | 20 20 20 20 20 20 0a 20 | break;.|      . |
|00004d80| 20 20 20 63 61 73 65 20 | 4f 50 45 4e 3a 0a 20 20 |   case |OPEN:.  |
|00004d90| 20 20 20 20 69 6e 70 20 | 3d 20 69 6e 70 61 63 6b |    inp |= inpack|
|00004da0| 65 74 3b 20 2f 2a 20 52 | 65 73 65 74 20 74 6f 20 |et; /* R|eset to |
|00004db0| 68 65 61 64 65 72 20 2a | 2f 0a 20 20 20 20 20 20 |header *|/.      |
|00004dc0| 6f 75 74 70 20 3d 20 6f | 75 74 70 61 63 6b 65 74 |outp = o|utpacket|
|00004dd0| 5f 62 75 66 3b 09 2f 2a | 20 67 65 74 20 70 6f 69 |_buf;./*| get poi|
|00004de0| 6e 74 65 72 20 74 6f 20 | 6f 75 74 70 75 74 20 62 |nter to |output b|
|00004df0| 75 66 66 65 72 20 2a 2f | 0a 20 20 20 20 20 20 4d |uffer */|.      M|
|00004e00| 64 70 2d 32 2e 33 2f 64 | 70 2f 69 70 63 70 2e 63 |dp-2.3/d|p/ipcp.c|
|00004e10| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004e20| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004e30| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004e40| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004e50| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004e60| 00 00 00 00 20 20 20 34 | 34 30 20 00 20 20 32 33 |....   4|40 .  23|
|00004e70| 30 34 20 00 20 20 20 33 | 31 30 20 00 20 20 20 20 |04 .   3|10 .    |
|00004e80| 20 20 35 34 34 31 30 20 | 20 35 33 34 34 36 37 35 |  54410 | 5344675|
|00004e90| 31 34 34 20 20 20 36 36 | 30 31 00 20 00 00 00 00 |144   66|01. ....|
|00004ea0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004eb0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004ec0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
|00004ed0| 00 00 00 00 00 00 00 00 | 00 00 00 00 00 00 00 00 |........|........|
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|00005000| 2f 2a 0a 20 2a 20 69 70 | 63 70 2e 63 20 2d 20 50 |/*. * ip|cp.c - P|
|00005010| 50 50 20 49 50 20 43 6f | 6e 74 72 6f 6c 20 50 72 |PP IP Co|ntrol Pr|
|00005020| 6f 74 6f 63 6f 6c 2e 0a | 20 2a 0a 20 2a 20 43 6f |otocol..| *. * Co|
|00005030| 70 79 72 69 67 68 74 20 | 28 63 29 20 31 39 38 39 |pyright |(c) 1989|
|00005040| 20 43 61 72 6e 65 67 69 | 65 20 4d 65 6c 6c 6f 6e | Carnegi|e Mellon|
|00005050| 20 55 6e 69 76 65 72 73 | 69 74 79 2e 0a 20 2a 20 | Univers|ity.. * |
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|000051c0| 79 20 43 61 72 6e 65 67 | 69 65 20 4d 65 6c 6c 6f |y Carneg|ie Mello|
|000051d0| 6e 20 55 6e 69 76 65 72 | 73 69 74 79 2e 20 20 54 |n Univer|sity.  T|
|000051e0| 68 65 20 6e 61 6d 65 20 | 6f 66 20 74 68 65 0a 20 |he name |of the. |
|000051f0| 2a 20 55 6e 69 76 65 72 | 73 69 74 79 20 6d 61 79 |* Univer|sity may|
|00005200| 20 6e 6f 74 20 62 65 20 | 75 73 65 64 20 74 6f 20 | not be |used to |
|00005210| 65 6e 64 6f 72 73 65 20 | 6f 72 20 70 72 6f 6d 6f |endorse |or promo|
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|00005240| 20 73 6f 66 74 77 61 72 | 65 20 77 69 74 68 6f 75 | softwar|e withou|
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|00005280| 54 57 41 52 45 20 49 53 | 20 50 52 4f 56 49 44 45 |TWARE IS| PROVIDE|
|00005290| 44 20 60 60 41 53 20 49 | 53 27 27 20 41 4e 44 20 |D ``AS I|S'' AND |
|000052a0| 57 49 54 48 4f 55 54 20 | 41 4e 59 20 45 58 50 52 |WITHOUT |ANY EXPR|
|000052b0| 45 53 53 20 4f 52 0a 20 | 2a 20 49 4d 50 4c 49 45 |ESS OR. |* IMPLIE|
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|000052d0| 43 4c 55 44 49 4e 47 2c | 20 57 49 54 48 4f 55 54 |CLUDING,| WITHOUT|
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|00005330| 49 43 55 4c 41 52 20 50 | 55 52 50 4f 53 45 2e 0a |ICULAR P|URPOSE..|
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|000053a0| 20 61 64 64 72 65 73 73 | 65 73 2e 0a 20 2a 20 53 | address|es.. * S|
|000053b0| 65 6e 64 20 4e 41 4b 73 | 20 66 6f 72 20 75 6e 73 |end NAKs| for uns|
|000053c0| 65 6e 74 20 43 49 73 2e | 0a 20 2a 20 56 4a 20 63 |ent CIs.|. * VJ c|
|000053d0| 6f 6d 70 72 65 73 73 69 | 6f 6e 2e 0a 20 2a 2f 0a |ompressi|on.. */.|
|000053e0| 0a 23 69 6e 63 6c 75 64 | 65 20 3c 73 74 64 69 6f |.#includ|e <stdio|
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|00005410| 20 3c 73 79 73 2f 69 6f | 63 74 6c 2e 68 3e 0a 23 | <sys/io|ctl.h>.#|
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|00005440| 73 79 73 2f 73 6f 63 6b | 65 74 2e 68 3e 0a 23 69 |sys/sock|et.h>.#i|
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|00005480| 20 3c 6e 65 74 2f 72 6f | 75 74 65 2e 68 3e 0a 23 | <net/ro|ute.h>.#|
|00005490| 69 6e 63 6c 75 64 65 20 | 3c 6e 65 74 69 6e 65 74 |include |<netinet|
|000054a0| 2f 69 6e 2e 68 3e 0a 23 | 69 6e 63 6c 75 64 65 20 |/in.h>.#|include |
|000054b0| 3c 73 74 72 69 6e 67 2e | 68 3e 0a 23 69 6e 63 6c |<string.|h>.#incl|
|000054c0| 75 64 65 20 3c 73 79 73 | 2f 73 74 72 65 61 6d 2e |ude <sys|/stream.|
|000054d0| 68 3e 0a 23 69 6e 63 6c | 75 64 65 20 22 70 70 70 |h>.#incl|ude "ppp|
|000054e0| 2e 68 22 0a 23 69 6e 63 | 6c 75 64 65 20 22 66 73 |.h".#inc|lude "fs|
|000054f0| 6d 2e 68 22 0a 23 69 6e | 63 6c 75 64 65 20 22 69 |m.h".#in|clude "i|
|00005500| 70 63 70 2e 68 22 0a 0a | 2f 2a 20 67 6c 6f 62 61 |pcp.h"..|/* globa|
|00005510| 6c 20 76 61 72 73 20 2a | 2f 0a 69 70 63 70 5f 6f |l vars *|/.ipcp_o|
|00005520| 70 74 69 6f 6e 73 20 69 | 70 63 70 5f 77 61 6e 74 |ptions i|pcp_want|
|00005530| 6f 70 74 69 6f 6e 73 5b | 4e 50 50 50 5d 3b 20 2f |options[|NPPP]; /|
|00005540| 2a 20 4f 70 74 69 6f 6e | 73 20 74 68 61 74 20 77 |* Option|s that w|
|00005550| 65 20 77 61 6e 74 20 74 | 6f 20 72 65 71 75 65 73 |e want t|o reques|
|00005560| 74 20 2a 2f 0a 69 70 63 | 70 5f 6f 70 74 69 6f 6e |t */.ipc|p_option|
|00005570| 73 20 69 70 63 70 5f 67 | 6f 74 6f 70 74 69 6f 6e |s ipcp_g|otoption|
|00005580| 73 5b 4e 50 50 50 5d 3b | 20 2f 2a 20 4f 70 74 69 |s[NPPP];| /* Opti|
|00005590| 6f 6e 73 20 74 68 61 74 | 20 70 65 65 72 20 61 63 |ons that| peer ac|
|000055a0| 6b 27 64 20 2a 2f 0a 69 | 70 63 70 5f 6f 70 74 69 |k'd */.i|pcp_opti|
|000055b0| 6f 6e 73 20 69 70 63 70 | 5f 61 6c 6c 6f 77 6f 70 |ons ipcp|_allowop|
|000055c0| 74 69 6f 6e 73 5b 4e 50 | 50 50 5d 3b 20 2f 2a 20 |tions[NP|PP]; /* |
|000055d0| 4f 70 74 69 6f 6e 73 20 | 74 68 61 74 20 77 65 20 |Options |that we |
|000055e0| 61 6c 6c 6f 77 20 70 65 | 65 72 20 74 6f 0a 09 09 |allow pe|er to...|
|000055f0| 09 09 09 20 72 65 71 75 | 65 73 74 20 2a 2f 0a 69 |... requ|est */.i|
|00005600| 70 63 70 5f 6f 70 74 69 | 6f 6e 73 20 69 70 63 70 |pcp_opti|ons ipcp|
|00005610| 5f 68 69 73 6f 70 74 69 | 6f 6e 73 5b 4e 50 50 50 |_hisopti|ons[NPPP|
|00005620| 5d 3b 20 2f 2a 20 4f 70 | 74 69 6f 6e 73 20 74 68 |]; /* Op|tions th|
|00005630| 61 74 20 77 65 20 61 63 | 6b 27 64 20 2a 2f 0a 0a |at we ac|k'd */..|
|00005640| 69 6e 74 09 69 70 63 70 | 5f 6e 65 67 61 64 64 72 |int.ipcp|_negaddr|
|00005650| 5f 6d 6f 64 65 20 3d 20 | 49 50 43 50 5f 4e 45 47 |_mode = |IPCP_NEG|
|00005660| 41 44 44 52 5f 4e 45 57 | 3b 20 2f 2a 20 68 6f 77 |ADDR_NEW|; /* how|
|00005670| 20 77 65 20 64 6f 20 61 | 64 64 72 73 20 2a 2f 0a | we do a|ddrs */.|
|00005680| 0a 2f 2a 20 6c 6f 63 61 | 6c 20 76 61 72 73 20 2a |./* loca|l vars *|
|00005690| 2f 0a 0a 2f 2a 0a 20 2a | 20 56 4a 20 63 6f 6d 70 |/../*. *| VJ comp|
|000056a0| 72 65 73 73 69 6f 6e 20 | 70 72 6f 74 6f 63 6f 6c |ression |protocol|
|000056b0| 20 6d 6f 64 65 20 66 6f | 72 20 6e 65 67 6f 74 69 | mode fo|r negoti|
|000056c0| 61 74 69 6f 6e 2e 20 53 | 65 65 20 69 70 63 70 2e |ation. S|ee ipcp.|
|000056d0| 68 20 66 6f 72 20 61 20 | 0a 20 2a 20 64 65 73 63 |h for a |. * desc|
|000056e0| 72 69 70 74 69 6f 6e 20 | 6f 66 20 65 61 63 68 20 |ription |of each |
|000056f0| 6d 6f 64 65 2e 0a 20 2a | 2f 0a 73 74 61 74 69 63 |mode.. *|/.static|
|00005700| 20 69 6e 74 20 76 6a 5f | 6d 6f 64 65 20 3d 20 49 | int vj_|mode = I|
|00005710| 50 43 50 5f 56 4a 4d 4f | 44 45 5f 43 55 52 52 45 |PCP_VJMO|DE_CURRE|
|00005720| 4e 54 3b 0a 0a 73 74 61 | 74 69 63 20 69 6e 74 20 |NT;..sta|tic int |
|00005730| 76 6a 5f 6f 70 74 5f 6c | 65 6e 20 3d 20 34 3b 09 |vj_opt_l|en = 4;.|
|00005740| 2f 2a 20 68 6f 6c 64 73 | 20 6c 65 6e 67 74 68 20 |/* holds| length |
|00005750| 69 6e 20 6f 63 74 65 74 | 73 20 66 6f 72 20 76 61 |in octet|s for va|
|00005760| 6c 69 64 20 76 6a 20 2a | 2f 0a 09 09 09 09 2f 2a |lid vj *|/...../*|
|00005770| 20 63 6f 6d 70 72 65 73 | 73 69 6f 6e 20 66 72 61 | compres|sion fra|
|00005780| 6d 65 20 64 65 70 65 6e | 64 69 6e 67 20 6f 6e 20 |me depen|ding on |
|00005790| 6d 6f 64 65 20 2a 2f 0a | 0a 73 74 61 74 69 63 20 |mode */.|.static |
|000057a0| 69 6e 74 20 76 6a 5f 6f | 70 74 5f 76 61 6c 20 3d |int vj_o|pt_val =|
|000057b0| 20 49 50 43 50 5f 56 4a | 5f 43 4f 4d 50 3b 0a 09 | IPCP_VJ|_COMP;..|
|000057c0| 09 09 09 2f 2a 20 63 6f | 6d 70 72 65 73 73 69 6f |.../* co|mpressio|
|000057d0| 6e 20 6e 65 67 6f 74 69 | 61 74 69 6f 6e 20 66 72 |n negoti|ation fr|
|000057e0| 61 6d 65 73 20 2a 2f 0a | 09 09 09 09 2f 2a 20 64 |ames */.|..../* d|
|000057f0| 65 70 65 6e 64 69 6e 67 | 20 6f 6e 20 76 6a 5f 6d |epending| on vj_m|
|00005800| 6f 64 65 20 2a 2f 0a 0a | 73 74 61 74 69 63 20 76 |ode */..|static v|
|00005810| 6f 69 64 20 69 70 63 70 | 5f 72 65 73 65 74 63 69 |oid ipcp|_resetci|
|00005820| 20 5f 5f 41 52 47 53 28 | 28 66 73 6d 20 2a 29 29 | __ARGS(|(fsm *))|
|00005830| 3b 09 2f 2a 20 52 65 73 | 65 74 20 6f 75 72 20 43 |;./* Res|et our C|
|00005840| 6f 6e 66 69 67 75 72 61 | 74 69 6f 6e 20 49 6e 66 |onfigura|tion Inf|
|00005850| 6f 72 6d 61 74 69 6f 6e | 20 2a 2f 0a 73 74 61 74 |ormation| */.stat|
|00005860| 69 63 20 69 6e 74 20 69 | 70 63 70 5f 63 69 6c 65 |ic int i|pcp_cile|
|00005870| 6e 20 5f 5f 41 52 47 53 | 28 28 66 73 6d 20 2a 29 |n __ARGS|((fsm *)|
|00005880| 29 3b 09 20 20 20 20 20 | 20 20 20 2f 2a 20 52 65 |);.     |   /* Re|
|00005890| 74 75 72 6e 20 6c 65 6e | 67 74 68 20 6f 66 20 6f |turn len|gth of o|
|000058a0| 75 72 20 43 49 20 2a 2f | 0a 73 74 61 74 69 63 20 |ur CI */|.static |
|000058b0| 76 6f 69 64 20 69 70 63 | 70 5f 61 64 64 63 69 20 |void ipc|p_addci |
|000058c0| 5f 5f 41 52 47 53 28 28 | 66 73 6d 20 2a 2c 20 75 |__ARGS((|fsm *, u|
|000058d0| 5f 63 68 61 72 20 2a 29 | 29 3b 09 2f 2a 20 41 64 |_char *)|);./* Ad|
|000058e0| 64 20 6f 75 72 20 43 49 | 73 20 2a 2f 0a 73 74 61 |d our CI|s */.sta|
|000058f0| 74 69 63 20 69 6e 74 20 | 69 70 63 70 5f 61 63 6b |tic int |ipcp_ack|
|00005900| 63 69 20 5f 5f 41 52 47 | 53 28 28 66 73 6d 20 2a |ci __ARG|S((fsm *|
|00005910| 2c 20 75 5f 63 68 61 72 | 20 2a 2c 20 69 6e 74 29 |, u_char| *, int)|
|00005920| 29 3b 09 2f 2a 20 41 63 | 6b 20 73 6f 6d 65 20 43 |);./* Ac|k some C|
|00005930| 49 73 20 2a 2f 0a 73 74 | 61 74 69 63 20 76 6f 69 |Is */.st|atic voi|
|00005940| 64 20 69 70 63 70 5f 6e | 61 6b 63 69 20 5f 5f 41 |d ipcp_n|akci __A|
|00005950| 52 47 53 28 28 66 73 6d | 20 2a 2c 20 75 5f 63 68 |RGS((fsm| *, u_ch|
|00005960| 61 72 20 2a 2c 20 69 6e | 74 29 29 3b 09 2f 2a 20 |ar *, in|t));./* |
|00005970| 4e 61 6b 20 73 6f 6d 65 | 20 43 49 73 20 2a 2f 0a |Nak some| CIs */.|
|00005980| 73 74 61 74 69 63 20 76 | 6f 69 64 20 69 70 63 70 |static v|oid ipcp|
|00005990| 5f 72 65 6a 63 69 20 5f | 5f 41 52 47 53 28 28 66 |_rejci _|_ARGS((f|
|000059a0| 73 6d 20 2a 2c 20 75 5f | 63 68 61 72 20 2a 2c 20 |sm *, u_|char *, |
|000059b0| 69 6e 74 29 29 3b 09 2f | 2a 20 52 65 6a 65 63 74 |int));./|* Reject|
|000059c0| 20 73 6f 6d 65 20 43 49 | 73 20 2a 2f 0a 73 74 61 | some CI|s */.sta|
|000059d0| 74 69 63 20 75 5f 63 68 | 61 72 20 69 70 63 70 5f |tic u_ch|ar ipcp_|
|000059e0| 72 65 71 63 69 20 5f 5f | 41 52 47 53 28 28 66 73 |reqci __|ARGS((fs|
|000059f0| 6d 20 2a 2c 20 75 5f 63 | 68 61 72 20 2a 2c 20 69 |m *, u_c|har *, i|
|00005a00| 6e 74 20 2a 29 29 3b 09 | 2f 2a 20 43 68 65 63 6b |nt *));.|/* Check|
|00005a10| 20 74 68 65 20 72 65 71 | 75 65 73 74 65 64 20 43 | the req|uested C|
|00005a20| 49 73 20 2a 2f 0a 73 74 | 61 74 69 63 20 76 6f 69 |Is */.st|atic voi|
|00005a30| 64 20 69 70 63 70 5f 75 | 70 20 5f 5f 41 52 47 53 |d ipcp_u|p __ARGS|
|00005a40| 28 28 66 73 6d 20 2a 29 | 29 3b 09 09 2f 2a 20 57 |((fsm *)|);../* W|
|00005a50| 65 27 72 65 20 55 50 20 | 2a 2f 0a 73 74 61 74 69 |e're UP |*/.stati|
|00005a60| 63 20 76 6f 69 64 20 69 | 70 63 70 5f 64 6f 77 6e |c void i|pcp_down|
|00005a70| 20 5f 5f 41 52 47 53 28 | 28 66 73 6d 20 2a 29 29 | __ARGS(|(fsm *))|
|00005a80| 3b 09 2f 2a 20 57 65 27 | 72 65 20 44 4f 57 4e 20 |;./* We'|re DOWN |
|00005a90| 2a 2f 0a 0a 0a 73 74 61 | 74 69 63 20 66 73 6d 20 |*/...sta|tic fsm |
|00005aa0| 69 70 63 70 5f 66 73 6d | 5b 4e 50 50 50 5d 3b 09 |ipcp_fsm|[NPPP];.|
|00005ab0| 2f 2a 20 49 50 43 50 20 | 66 73 6d 20 73 74 72 75 |/* IPCP |fsm stru|
|00005ac0| 63 74 75 72 65 20 2a 2f | 0a 0a 73 74 61 74 69 63 |cture */|..static|
|00005ad0| 20 66 73 6d 5f 63 61 6c | 6c 62 61 63 6b 73 20 69 | fsm_cal|lbacks i|
|00005ae0| 70 63 70 5f 63 61 6c 6c | 62 61 63 6b 73 20 3d 20 |pcp_call|backs = |
|00005af0| 7b 20 2f 2a 20 49 50 43 | 50 20 63 61 6c 6c 62 61 |{ /* IPC|P callba|
|00005b00| 63 6b 20 72 6f 75 74 69 | 6e 65 73 20 2a 2f 0a 20 |ck routi|nes */. |
|00005b10| 20 20 20 69 70 63 70 5f | 72 65 73 65 74 63 69 2c |   ipcp_|resetci,|
|00005b20| 09 09 2f 2a 20 52 65 73 | 65 74 20 6f 75 72 20 43 |../* Res|et our C|
|00005b30| 6f 6e 66 69 67 75 72 61 | 74 69 6f 6e 20 49 6e 66 |onfigura|tion Inf|
|00005b40| 6f 72 6d 61 74 69 6f 6e | 20 2a 2f 0a 20 20 20 20 |ormation| */.    |
|00005b50| 69 70 63 70 5f 63 69 6c | 65 6e 2c 09 09 09 2f 2a |ipcp_cil|en,.../*|
|00005b60| 20 4c 65 6e 67 74 68 20 | 6f 66 20 6f 75 72 20 43 | Length |of our C|
|00005b70| 6f 6e 66 69 67 75 72 61 | 74 69 6f 6e 20 49 6e 66 |onfigura|tion Inf|
|00005b80| 6f 72 6d 61 74 69 6f 6e | 20 2a 2f 0a 20 20 20 20 |ormation| */.    |
|00005b90| 69 70 63 70 5f 61 64 64 | 63 69 2c 09 09 09 2f 2a |ipcp_add|ci,.../*|
|00005ba0| 20 41 64 64 20 6f 75 72 | 20 43 6f 6e 66 69 67 75 | Add our| Configu|
|00005bb0| 72 61 74 69 6f 6e 20 49 | 6e 66 6f 72 6d 61 74 69 |ration I|nformati|
|00005bc0| 6f 6e 20 2a 2f 0a 20 20 | 20 20 69 70 63 70 5f 61 |on */.  |  ipcp_a|
|00005bd0| 63 6b 63 69 2c 09 09 09 | 2f 2a 20 41 43 4b 20 6f |ckci,...|/* ACK o|
|00005be0| 75 72 20 43 6f 6e 66 69 | 67 75 72 61 74 69 6f 6e |ur Confi|guration|
|00005bf0| 20 49 6e 66 6f 72 6d 61 | 74 69 6f 6e 20 2a 2f 0a | Informa|tion */.|
|00005c00| 20 20 20 20 69 70 63 70 | 5f 6e 61 6b 63 69 2c 09 |    ipcp|_nakci,.|
|00005c10| 09 09 2f 2a 20 4e 41 4b | 20 6f 75 72 20 43 6f 6e |../* NAK| our Con|
|00005c20| 66 69 67 75 72 61 74 69 | 6f 6e 20 49 6e 66 6f 72 |figurati|on Infor|
|00005c30| 6d 61 74 69 6f 6e 20 2a | 2f 0a 20 20 20 20 69 70 |mation *|/.    ip|
|00005c40| 63 70 5f 72 65 6a 63 69 | 2c 09 09 09 2f 2a 20 52 |cp_rejci|,.../* R|
|00005c50| 65 6a 65 63 74 20 6f 75 | 72 20 43 6f 6e 66 69 67 |eject ou|r Config|
|00005c60| 75 72 61 74 69 6f 6e 20 | 49 6e 66 6f 72 6d 61 74 |uration |Informat|
|00005c70| 69 6f 6e 20 2a 2f 0a 20 | 20 20 20 69 70 63 70 5f |ion */. |   ipcp_|
|00005c80| 72 65 71 63 69 2c 09 09 | 09 2f 2a 20 52 65 71 75 |reqci,..|./* Requ|
|00005c90| 65 73 74 20 70 65 65 72 | 27 73 20 43 6f 6e 66 69 |est peer|'s Confi|
|00005ca0| 67 75 72 61 74 69 6f 6e | 20 49 6e 66 6f 72 6d 61 |guration| Informa|
|00005cb0| 74 69 6f 6e 20 2a 2f 0a | 20 20 20 20 69 70 63 70 |tion */.|    ipcp|
|00005cc0| 5f 75 70 2c 09 09 09 2f | 2a 20 43 61 6c 6c 65 64 |_up,.../|* Called|
|00005cd0| 20 77 68 65 6e 20 66 73 | 6d 20 72 65 61 63 68 65 | when fs|m reache|
|00005ce0| 73 20 4f 50 45 4e 20 73 | 74 61 74 65 20 2a 2f 0a |s OPEN s|tate */.|
|00005cf0| 20 20 20 20 69 70 63 70 | 5f 64 6f 77 6e 2c 09 09 |    ipcp|_down,..|
|00005d00| 09 2f 2a 20 43 61 6c 6c | 65 64 20 77 68 65 6e 20 |./* Call|ed when |
|00005d10| 66 73 6d 20 6c 65 61 76 | 65 73 20 4f 50 45 4e 20 |fsm leav|es OPEN |
|00005d20| 73 74 61 74 65 20 2a 2f | 0a 20 20 20 20 4e 55 4c |state */|.    NUL|
|00005d30| 4c 2c 09 09 09 2f 2a 20 | 43 61 6c 6c 65 64 20 77 |L,.../* |Called w|
|00005d40| 68 65 6e 20 66 73 6d 20 | 72 65 61 63 68 65 73 20 |hen fsm |reaches |
|00005d50| 43 4c 4f 53 45 44 20 73 | 74 61 74 65 20 2a 2f 0a |CLOSED s|tate */.|
|00005d60| 20 20 20 20 4e 55 4c 4c | 2c 09 09 09 2f 2a 20 43 |    NULL|,.../* C|
|00005d70| 61 6c 6c 65 64 20 77 68 | 65 6e 20 50 72 6f 74 6f |alled wh|en Proto|
|00005d80| 63 6f 6c 2d 52 65 6a 65 | 63 74 20 72 65 63 65 69 |col-Reje|ct recei|
|00005d90| 76 65 64 20 2a 2f 0a 20 | 20 20 20 4e 55 4c 4c 09 |ved */. |   NULL.|
|00005da0| 09 09 2f 2a 20 52 65 74 | 72 61 6e 73 6d 69 73 73 |../* Ret|ransmiss|
|00005db0| 69 6f 6e 20 69 73 20 6e | 65 63 65 73 73 61 72 79 |ion is n|ecessary|
|00005dc0| 20 2a 2f 0a 7d 3b 0a 0a | 0a 2f 2a 0a 20 2a 20 69 | */.};..|./*. * i|
|00005dd0| 70 63 70 5f 69 6e 69 74 | 20 2d 20 49 6e 69 74 69 |pcp_init| - Initi|
|00005de0| 61 6c 69 7a 65 20 49 50 | 43 50 2e 0a 20 2a 2f 0a |alize IP|CP.. */.|
|00005df0| 76 6f 69 64 0a 20 20 69 | 70 63 70 5f 69 6e 69 74 |void.  i|pcp_init|
|00005e00| 28 75 6e 69 74 29 0a 69 | 6e 74 20 75 6e 69 74 3b |(unit).i|nt unit;|
|00005e10| 0a 7b 0a 20 20 20 20 66 | 73 6d 20 2a 66 20 3d 20 |.{.    f|sm *f = |
|00005e20| 26 69 70 63 70 5f 66 73 | 6d 5b 75 6e 69 74 5d 3b |&ipcp_fs|m[unit];|
|00005e30| 0a 20 20 20 20 69 70 63 | 70 5f 6f 70 74 69 6f 6e |.    ipc|p_option|
|00005e40| 73 20 2a 77 6f 20 3d 20 | 26 69 70 63 70 5f 77 61 |s *wo = |&ipcp_wa|
|00005e50| 6e 74 6f 70 74 69 6f 6e | 73 5b 75 6e 69 74 5d 3b |ntoption|s[unit];|
|00005e60| 0a 20 20 20 20 69 70 63 | 70 5f 6f 70 74 69 6f 6e |.    ipc|p_option|
|00005e70| 73 20 2a 61 6f 20 3d 20 | 26 69 70 63 70 5f 61 6c |s *ao = |&ipcp_al|
|00005e80| 6c 6f 77 6f 70 74 69 6f | 6e 73 5b 75 6e 69 74 5d |lowoptio|ns[unit]|
|00005e90| 3b 0a 0a 20 20 20 20 66 | 2d 3e 75 6e 69 74 20 3d |;..    f|->unit =|
|00005ea0| 20 75 6e 69 74 3b 0a 20 | 20 20 20 66 2d 3e 70 72 | unit;. |   f->pr|
|00005eb0| 6f 74 6f 63 6f 6c 20 3d | 20 49 50 43 50 3b 0a 20 |otocol =| IPCP;. |
|00005ec0| 20 20 20 66 2d 3e 74 69 | 6d 65 6f 75 74 74 69 6d |   f->ti|meouttim|
|00005ed0| 65 20 3d 20 44 45 46 54 | 49 4d 45 4f 55 54 3b 0a |e = DEFT|IMEOUT;.|
|00005ee0| 20 20 20 20 66 2d 3e 6d | 61 78 74 65 72 6d 74 72 |    f->m|axtermtr|
|00005ef0| 61 6e 73 6d 69 74 73 20 | 3d 20 44 45 46 4d 41 58 |ansmits |= DEFMAX|
|00005f00| 54 45 52 4d 54 52 41 4e | 53 4d 49 54 53 3b 0a 20 |TERMTRAN|SMITS;. |
|00005f10| 20 20 20 66 2d 3e 6d 61 | 78 6e 61 6b 6c 6f 6f 70 |   f->ma|xnakloop|
|00005f20| 73 20 3d 20 44 45 46 4d | 41 58 4e 41 4b 4c 4f 4f |s = DEFM|AXNAKLOO|
|00005f30| 50 53 3b 0a 20 20 20 20 | 66 2d 3e 63 61 6c 6c 62 |PS;.    |f->callb|
|00005f40| 61 63 6b 73 20 3d 20 26 | 69 70 63 70 5f 63 61 6c |acks = &|ipcp_cal|
|00005f50| 6c 62 61 63 6b 73 3b 0a | 0a 20 20 20 20 77 6f 2d |lbacks;.|.    wo-|
|00005f60| 3e 6e 65 67 5f 61 64 64 | 72 73 20 3d 20 69 70 63 |>neg_add|rs = ipc|
|00005f70| 70 5f 6e 65 67 61 64 64 | 72 5f 6d 6f 64 65 3b 0a |p_negadd|r_mode;.|
|00005f80| 20 20 20 20 77 6f 2d 3e | 6f 75 72 61 64 64 72 20 |    wo->|ouraddr |
|00005f90| 3d 20 30 3b 0a 0a 20 20 | 20 20 77 6f 2d 3e 68 69 |= 0;..  |  wo->hi|
|00005fa0| 73 61 64 64 72 20 3d 20 | 30 3b 0a 20 20 20 20 77 |saddr = |0;.    w|
|00005fb0| 6f 2d 3e 6e 65 67 5f 76 | 6a 20 3d 20 31 3b 0a 20 |o->neg_v|j = 1;. |
|00005fc0| 20 20 20 77 6f 2d 3e 6d | 61 78 73 6c 6f 74 69 6e |   wo->m|axslotin|
|00005fd0| 64 65 78 20 3d 20 4d 41 | 58 5f 53 54 41 54 45 53 |dex = MA|X_STATES|
|00005fe0| 20 2d 20 31 3b 20 2f 2a | 20 72 65 61 6c 6c 79 20 | - 1; /*| really |
|00005ff0| 6d 61 78 20 69 6e 64 65 | 78 20 2a 2f 0a 20 20 20 |max inde|x */.   |
|00006000| 20 77 6f 2d 3e 63 66 6c | 61 67 20 3d 20 31 3b 0a | wo->cfl|ag = 1;.|
|00006010| 0a 20 20 20 20 2f 2a 20 | 6d 61 78 20 73 6c 6f 74 |.    /* |max slot|
|00006020| 73 20 61 6e 64 20 73 6c | 6f 74 2d 69 64 20 63 6f |s and sl|ot-id co|
|00006030| 6d 70 72 65 73 73 69 6f | 6e 20 61 72 65 20 63 75 |mpressio|n are cu|
|00006040| 72 72 65 6e 74 6c 79 20 | 68 61 72 64 77 69 72 65 |rrently |hardwire|
|00006050| 64 20 69 6e 20 2a 2f 0a | 20 20 20 20 2f 2a 20 70 |d in */.|    /* p|
|00006060| 70 70 5f 69 66 2e 63 20 | 74 6f 20 31 36 20 61 6e |pp_if.c |to 16 an|
|00006070| 64 20 31 2c 20 74 68 69 | 73 20 6e 65 65 64 73 20 |d 1, thi|s needs |
|00006080| 74 6f 20 62 65 20 63 68 | 61 6e 67 65 64 20 28 61 |to be ch|anged (a|
|00006090| 6d 6f 6e 67 20 6f 74 68 | 65 72 20 2a 2f 0a 20 20 |mong oth|er */.  |
|000060a0| 20 20 2f 2a 20 74 68 69 | 6e 67 73 29 20 67 6d 63 |  /* thi|ngs) gmc|
|000060b0| 20 2a 2f 0a 0a 20 20 20 | 20 61 6f 2d 3e 6e 65 67 | */..   | ao->neg|
|000060c0| 5f 61 64 64 72 73 20 3d | 20 69 70 63 70 5f 6e 65 |_addrs =| ipcp_ne|
|000060d0| 67 61 64 64 72 5f 6d 6f | 64 65 3b 0a 20 20 20 20 |gaddr_mo|de;.    |
|000060e0| 61 6f 2d 3e 6e 65 67 5f | 76 6a 20 3d 20 31 3b 0a |ao->neg_|vj = 1;.|
|000060f0| 20 20 20 20 61 6f 2d 3e | 6d 61 78 73 6c 6f 74 69 |    ao->|maxsloti|
|00006100| 6e 64 65 78 20 3d 20 4d | 41 58 5f 53 54 41 54 45 |ndex = M|AX_STATE|
|00006110| 53 20 2d 20 31 3b 0a 20 | 20 20 20 61 6f 2d 3e 63 |S - 1;. |   ao->c|
|00006120| 66 6c 61 67 20 3d 20 31 | 3b 0a 20 20 20 20 66 73 |flag = 1|;.    fs|
|00006130| 6d 5f 69 6e 69 74 28 26 | 69 70 63 70 5f 66 73 6d |m_init(&|ipcp_fsm|
|00006140| 5b 75 6e 69 74 5d 29 3b | 0a 7d 0a 0a 2f 2a 0a 20 |[unit]);|.}../*. |
|00006150| 2a 20 69 70 63 70 5f 76 | 6a 5f 73 65 74 6d 6f 64 |* ipcp_v|j_setmod|
|00006160| 65 20 2d 20 73 65 74 20 | 6f 70 74 69 6f 6e 20 6c |e - set |option l|
|00006170| 65 6e 67 74 68 20 61 6e | 64 20 6f 70 74 69 6f 6e |ength an|d option|
|00006180| 20 76 61 6c 75 65 20 66 | 6f 72 20 76 6a 0a 20 2a | value f|or vj. *|
|00006190| 20 63 6f 6d 70 72 65 73 | 73 69 6f 6e 20 6e 65 67 | compres|sion neg|
|000061a0| 6f 74 69 61 74 69 6f 6e | 20 66 72 61 6d 65 73 20 |otiation| frames |
|000061b0| 64 65 70 65 6e 64 69 6e | 67 20 6f 6e 20 6d 6f 64 |dependin|g on mod|
|000061c0| 65 0a 20 2a 2f 0a 0a 76 | 6f 69 64 0a 20 20 69 70 |e. */..v|oid.  ip|
|000061d0| 63 70 5f 76 6a 5f 73 65 | 74 6d 6f 64 65 28 6d 6f |cp_vj_se|tmode(mo|
|000061e0| 64 65 29 0a 69 6e 74 20 | 6d 6f 64 65 3b 20 20 20 |de).int |mode;   |
|000061f0| 20 0a 7b 0a 20 20 76 6a | 5f 6d 6f 64 65 20 3d 20 | .{.  vj|_mode = |
|00006200| 6d 6f 64 65 3b 0a 0a 20 | 20 73 77 69 74 63 68 20 |mode;.. | switch |
|00006210| 28 76 6a 5f 6d 6f 64 65 | 29 20 7b 0a 0a 20 20 63 |(vj_mode|) {..  c|
|00006220| 61 73 65 20 49 50 43 50 | 5f 56 4a 4d 4f 44 45 5f |ase IPCP|_VJMODE_|
|00006230| 4f 4c 44 3a 0a 20 20 20 | 20 76 6a 5f 6f 70 74 5f |OLD:.   | vj_opt_|
|00006240| 6c 65 6e 20 3d 20 34 3b | 0a 20 20 20 20 76 6a 5f |len = 4;|.    vj_|
|00006250| 6f 70 74 5f 76 61 6c 20 | 3d 20 49 50 43 50 5f 56 |opt_val |= IPCP_V|
|00006260| 4a 5f 43 4f 4d 50 5f 4f | 4c 44 3b 0a 20 20 20 20 |J_COMP_O|LD;.    |
|00006270| 62 72 65 61 6b 3b 0a 0a | 20 20 63 61 73 65 20 49 |break;..|  case I|
|00006280| 50 43 50 5f 56 4a 4d 4f | 44 45 5f 43 55 52 52 45 |PCP_VJMO|DE_CURRE|
|00006290| 4e 54 3a 0a 20 20 20 20 | 76 6a 5f 6f 70 74 5f 6c |NT:.    |vj_opt_l|
|000062a0| 65 6e 20 3d 20 34 3b 0a | 20 20 20 20 76 6a 5f 6f |en = 4;.|    vj_o|
|000062b0| 70 74 5f 76 61 6c 20 3d | 20 49 50 43 50 5f 56 4a |pt_val =| IPCP_VJ|
|000062c0| 5f 43 4f 4d 50 3b 0a 20 | 20 20 20 62 72 65 61 6b |_COMP;. |   break|
|000062d0| 3b 0a 0a 20 20 63 61 73 | 65 20 49 50 43 50 5f 56 |;..  cas|e IPCP_V|
|000062e0| 4a 4d 4f 44 45 5f 44 52 | 41 46 54 3a 20 20 20 20 |JMODE_DR|AFT:    |
|000062f0| 20 2f 2a 20 64 72 61 66 | 74 20 6d 6f 64 65 20 76 | /* draf|t mode v|
|00006300| 6a 20 63 6f 6d 70 72 65 | 73 73 69 6f 6e 20 2a 2f |j compre|ssion */|
|00006310| 20 20 20 20 20 20 20 20 | 20 20 0a 20 20 20 20 76 |        |  .    v|
|00006320| 6a 5f 6f 70 74 5f 6c 65 | 6e 20 3d 20 36 3b 09 20 |j_opt_le|n = 6;. |
|00006330| 20 20 20 20 20 2f 2a 20 | 6e 65 67 6f 74 69 61 74 |     /* |negotiat|
|00006340| 69 6f 6e 20 69 6e 63 6c | 75 64 65 73 20 76 61 6c |ion incl|udes val|
|00006350| 75 65 73 20 66 6f 72 20 | 2a 2f 20 20 20 20 0a 20 |ues for |*/    . |
|00006360| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00006370| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 2f 2a 20 |        |     /* |
|00006380| 6d 61 78 73 6c 6f 74 20 | 61 6e 64 20 73 6c 6f 74 |maxslot |and slot|
|00006390| 20 6e 75 6d 62 65 72 20 | 63 6f 6d 70 72 65 73 73 | number |compress|
|000063a0| 69 6f 6e 20 2a 2f 0a 20 | 20 20 20 76 6a 5f 6f 70 |ion */. |   vj_op|
|000063b0| 74 5f 76 61 6c 20 3d 20 | 49 50 43 50 5f 56 4a 5f |t_val = |IPCP_VJ_|
|000063c0| 43 4f 4d 50 3b 0a 20 20 | 20 20 62 72 65 61 6b 3b |COMP;.  |  break;|
|000063d0| 0a 0a 20 20 64 65 66 61 | 75 6c 74 3a 0a 20 20 20 |..  defa|ult:.   |
|000063e0| 20 49 50 43 50 44 45 42 | 55 47 28 28 4c 4f 47 5f | IPCPDEB|UG((LOG_|
|000063f0| 57 41 52 4e 49 4e 47 2c | 20 22 55 6e 6b 6e 6f 77 |WARNING,| "Unknow|
+--------+-------------------------+-------------------------+--------+--------+