fc-tourmaline: src/g23m-gprs/llc/llc

annotate src/g23m-gprs/llc/llc_rxf.c @ 303:f76436d19a7a default tip

!GPRS config: fix long-standing AT+COPS chance hanging bug There has been a long-standing bug in FreeCalypso going back years: sometimes in the AT command bring-up sequence of an ACI-only MS, the AT+COPS command would produce only a power scan followed by cessation of protocol stack activity (only L1 ADC traces), instead of the expected network search sequence. This behaviour was seen in different FC firmware versions going back to Citrine, and seemed to follow some law of chance, not reliably repeatable. This bug has been tracked down and found to be specific to !GPRS configuration, stemming from our TCS2/TCS3 hybrid and reconstruction of !GPRS support that was bitrotten in TCS3.2/LoCosto version. ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3 version and had to be pulled from TCS2 - but as it turns out, there is a new field in the MMR_REG_REQ primitive that needs to be set correctly, and that psa_mms.c module is the place where this initialization needed to be added.

author	Mychaela Falconia <falcon@freecalypso.org>
date	Thu, 08 Jun 2023 08:23:37 +0000
parents	fa8dc04885d8
children

rev	line source
1 fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	2 +-----------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	3 \| Project :
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	4 \| Modul :
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	5 +-----------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	6 \| Copyright 2002 Texas Instruments Berlin, AG
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	7 \| All rights reserved.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	8 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	9 \| This file is confidential and a trade secret of Texas
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	10 \| Instruments Berlin, AG
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	11 \| The receipt of or possession of this file does not convey
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	12 \| any rights to reproduce or disclose its contents or to
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	13 \| manufacture, use, or sell anything it may describe, in
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	14 \| whole, or in part, without the specific written consent of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	15 \| Texas Instruments Berlin, AG.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	16 +-----------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	17 \| Purpose : This modul is part of the entity LLC and implements all
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	18 \| procedures and functions as described in the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	19 \| SDL-documentation (RX-statemachine)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	20 +-----------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	21 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	22
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	23 #ifndef LLC_RXF_C
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	24 #define LLC_RXF_C
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	25 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	26
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	27 #define ENTITY_LLC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	28
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	29 /==== INCLUDES =============================================================/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	30
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	31 #include <string.h> /* to get memcpy() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	32
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	33 #include "typedefs.h" /* to get Condat data types */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	34 #include "vsi.h" /* to get a lot of macros */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	35 #include "macdef.h"
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	36 #include "gprs.h"
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	37 #include "gsm.h" /* to get a lot of macros */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	38 #include "cnf_llc.h" /* to get cnf-definitions */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	39 #include "mon_llc.h" /* to get mon-definitions */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	40 #include "prim.h" /* to get the definitions of used SAP and directions */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	41 #include "llc.h" /* to get the global entity definitions */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	42
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	43 #include "llc_rxf.h" /* to get local defines */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	44 #include "llc_rxp.h" /* to get the function rx_cci_decipher_cnf */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	45 #include "llc_f.h" /* to get global functions, e.g. llc_generate_input */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	46 #ifndef TI_PS_OP_CIPH_DRIVER
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	47 #include "cci_fbsf.h" /* to get functional interface */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	48 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	49 /==== CONST ================================================================/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	50
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	51 /==== LOCAL VARS ===========================================================/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	52
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	53 /==== PRIVATE FUNCTIONS ====================================================/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	54 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	55
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	56 GLOBAL UBYTE rx_get_desc_octet (T_desc_list *desc_list,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	57 USHORT offset,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	58 UBYTE *data_ptr);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	59 #endif /* CF_FAST_EXEC */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	60
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	61 /==== PUBLIC FUNCTIONS =====================================================/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	62
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	63
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	64 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	65 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	66 \| Function : rx_init
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	67 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	68 \| Description : This procedure initialises all necessary variables of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	69 \| receive_pdu.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	70 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	71 \| Parameters :
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	72 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	73 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	74 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	75 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	76
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	77 GLOBAL void rx_init (void)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	78 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	79 TRACE_FUNCTION( "rx_init" );
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	80
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	81 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	82 * Initialise service RX with state TLLI_UNASSIGNED.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	83 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	84 INIT_STATE (RX, RX_TLLI_UNASSIGNED);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	85
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	86 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	87 } /* rx_init() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	88
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	89 #endif /* CF_FAST_EXEC */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	90
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	91
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	92 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	93 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	94 \| Function : rx_analyse_ctrl_field
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	95 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	96 \| Description : This procedure analyses the received LLC frame control field
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	97 \| and sets frame_type according to the frame type (U, UI, I/S).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	98 \| protected_mode is set according to the protected mode of the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	99 \| frame (U and I/S always protected, UI depends on setting of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	100 \| PM bit). The type of protected_mode is the same as in
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	101 \| CCI_DECIPHER_REQ. ns is set to N(S) for I frames, N(U) for
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	102 \| UI frames, or an undefined value for S and U frames. ciphering
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	103 \| is set to TRUE if the frame is ciphered (U never, I/S always,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	104 \| UI depends on setting of E bit), otherwise to FALSE. frame_ok
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	105 \| indicates if the frame contains enough octets to contain a
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	106 \| known control field (i.e. all necessary information is
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	107 \| accessible, not the control field is complete!).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	108 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	109 \| Parameters : grlc_unitdata_ind - a valid pointer to a GRLC_UNITDATA_IND
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	110 \| primitive
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	111 \| frame_type - a valid pointer to a T_PDU_TYPE variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	112 \| protected_mode - a valid pointer to a UBYTE variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	113 \| sapi - a valid pointer to a UBYTE variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	114 \| ns - a valid pointer to a T_FRAME_NUM variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	115 \| ciphering - a valid pointer to a BOOL variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	116 \| header_size - a valid pointer to a USHORT variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	117 \| frame_ok - a valid pointer to a BOOL variable
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	118 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	119 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	120 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	121
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	122 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	123
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	124 GLOBAL void rx_analyse_ctrl_field (T_GRLC_UNITDATA_IND *grlc_unitdata_ind,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	125 T_PDU_TYPE *frame_type,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	126 UBYTE *protected_mode,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	127 UBYTE *sapi,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	128 T_FRAME_NUM *ns,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	129 BOOL *ciphering,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	130 USHORT *header_size,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	131 BOOL *frame_ok)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	132 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	133 UBYTE first_octet;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	134 UBYTE sec_octet;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	135 UBYTE command_octet;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	136 UBYTE sack_k_octet;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	137
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	138
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	139 TRACE_FUNCTION( "rx_analyse_ctrl_field" );
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	140
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	141 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	142 * Check if the frame contains enough octets to access the first octet of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	143 * the control field to find out the type of the frame.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	144 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	145 if (grlc_unitdata_ind->desc_list.list_len < CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	146 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	147 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	148 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	149 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	150
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	151 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	152 * Assume initially that the frame is ok.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	153 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	154 *frame_ok = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	155
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	156 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	157 * Set first_octet to the value of the first frame octet (offset 0), which
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	158 * is the address field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	159 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	160 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 0, &first_octet);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	161
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	162 *sapi = first_octet & 0x0F;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	163
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	164 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	165 * Set sec_octet to the value of the second frame octet (offset 1), which
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	166 * is the first octet of the control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	167 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	168 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 1, &sec_octet);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	169
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	170
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	171 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	172 * Determine frame_type, along with ns, protected_mode, and ciphering,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	173 * depending on the frame type.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	174 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	175 if ((sec_octet & I_FRAME_MASK) EQ I_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	176 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	177 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	178 * I frame, protected, ciphered, at least 4 octets required to access all
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	179 * requested information (1 Address, 3 Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	180 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	181 *frame_type = I_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	182 *protected_mode = CCI_PM_PROTECTED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	183 *ciphering = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	184
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	185 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	186 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	187 * I frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	188 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	189 if (grlc_unitdata_ind->desc_list.list_len < I_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	190 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	191 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	192 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	193 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	194
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	195 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	196 * Determine the header_size
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	197 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	198 *header_size = I_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	199
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	200 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	201 * Add bytes in case of SACK-Bitmap (add K+1). Therefore get at first
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	202 * the command octet (offset 3). In case of an SACK, get next the k
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	203 * octet (offset 4) and add the additional size.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	204 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	205 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 3, &command_octet);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	206
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	207 if ( (command_octet & 0x03) == I_FRAME_SACK )
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	208 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	209 header_size += 1; / k octet */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	210
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	211 if (grlc_unitdata_ind->desc_list.list_len < *header_size)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	212 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	213 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	214 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	215 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	216
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	217 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 4, &sack_k_octet);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	218
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	219 header_size += (sack_k_octet & 0x1F); / bitmap size */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	220
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	221 if (grlc_unitdata_ind->desc_list.list_len < *header_size)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	222 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	223 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	224 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	225 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	226 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	227
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	228 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	229 * Extract N(S) and store it in ns.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	230 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	231 *ns = (((T_FRAME_NUM)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	232 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 1, NULL)) & 0x1F) << 4;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	233 *ns \|= (((T_FRAME_NUM)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	234 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 2, NULL)) >> 4);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	235 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	236 else if ((sec_octet & S_FRAME_MASK) EQ S_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	237 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	238 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	239 * S frame, protected, not ciphered. No N(S) present, only N(R).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	240 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	241 *frame_type = S_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	242 *protected_mode = CCI_PM_PROTECTED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	243 *ciphering = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	244
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	245 *header_size = S_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	246
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	247 /* not necessary to add bytes in case of SACK - value is not used */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	248 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	249 else if ((sec_octet & UI_FRAME_MASK) EQ UI_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	250 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	251 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	252 * UI frame, at least 3 octets required to access all requested
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	253 * information (1 Address, 2 Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	254 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	255 *frame_type = UI_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	256
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	257 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	258 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	259 * UI frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	260 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	261 if (grlc_unitdata_ind->desc_list.list_len < UI_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	262 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	263 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	264 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	265 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	266
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	267 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	268 * Extract protected mode setting of frame (PM bit).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	269 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	270 if (rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 2, NULL) & 0x01)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	271 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	272 *protected_mode = CCI_PM_PROTECTED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	273 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	274 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	275 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	276 *protected_mode = CCI_PM_UNPROTECTED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	277 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	278
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	279 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	280 * Extract ciphering setting of frame (E bit).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	281 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	282 if (rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 2, NULL) & 0x02)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	283 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	284 *ciphering = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	285 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	286 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	287 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	288 *ciphering = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	289 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	290
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	291 *header_size = UI_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	292
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	293 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	294 * Extract N(U) and store it in ns.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	295 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	296 *ns = (((T_FRAME_NUM)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	297 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 1, NULL)) & 0x07) << 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	298 *ns \|= (((T_FRAME_NUM)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	299 rx_get_desc_octet (&grlc_unitdata_ind->desc_list, 2, NULL)) >> 2);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	300 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	301 else if ((sec_octet & U_FRAME_MASK) EQ U_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	302 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	303 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	304 * U frame, protected, not ciphered. No N(S) present.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	305 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	306 *frame_type = U_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	307 *protected_mode = CCI_PM_PROTECTED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	308 *ciphering = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	309
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	310 *header_size = U_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	311 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	312
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	313 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	314 } /* rx_analyse_ctrl_field() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	315
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	316 #endif /* CF_FAST_EXEC */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	317
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	318 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	319 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	320 \| Function : rx_decipher_req
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	321 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	322 \| Description : Handles the function rx_decipher_req. This functions sets the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	323 \| ciphering parameters and calls the deciphering driver function.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	324 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	325 \| Parameters :
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	326 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	327 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	328 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	329
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	330 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	331 GLOBAL void rx_decipher_req (T_CCI_DECIPHER_REQ *decipher_req)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	332 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	333 T_CIPH_init_cipher_req_parms init_cipher_req_parms;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	334 T_CIPH_cipher_req_parms cipher_req_parms;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	335 T_CIPH_in_data_list in_data_list;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	336 T_CIPH_out_data out_data;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	337 T_CIPH_ck ck;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	338 U16 i;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	339 U8 status;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	340 U16 cnt = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	341
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	342 TRACE_FUNCTION( "rx_decipher_req" );
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	343
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	344 #ifdef LLC_TRACE_CIPHERING
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	345 TRACE_EVENT("DOWNLINK CIPHERED DATA");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	346 llc_trace_desc_list(&decipher_req->desc_list);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	347 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	348
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	349 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	350 * Copy pointer to desc's from CIPHER_REQ to the in_data_list
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	351 * The in_data array in allocated dynamically in this func.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	352 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	353 llc_copy_dl_data_to_list(decipher_req, &in_data_list);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	354 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	355 * Set ciphering parameters
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	356 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	357 cipher_req_parms.gprs_parameters.pm = decipher_req->pm;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	358 cipher_req_parms.gprs_parameters.header_size = decipher_req->header_size;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	359 cipher_req_parms.gprs_parameters.ciphering_input =
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	360 decipher_req->ciphering_input;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	361 cipher_req_parms.gprs_parameters.threshold = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	362 init_cipher_req_parms.direction = CIPH_DOWNLINK_DIR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	363 init_cipher_req_parms.algo = decipher_req->ciphering_algorithm;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	364 init_cipher_req_parms.ptr_ck = & ck;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	365 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	366 * Copy ciphering key
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	367 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	368 for (i = 0; i < 8;i++) {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	369 init_cipher_req_parms.ptr_ck->ck_element[i] = decipher_req->kc.key[i];
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	370 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	371
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	372 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	373 /* Use GRLC_DATA_REQ instead of CCI_CIPHER_CNF to avoid PPASS in LLC*/
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	374 PALLOC_SDU (ll_unitdata_ind, LL_UNITDATA_IND,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	375 (USHORT)((decipher_req->desc_list.list_len*8) - FCS_SIZE_BITS));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	376
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	377 ll_unitdata_ind->sdu.o_buf = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	378 ll_unitdata_ind->sdu.l_buf = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	379 out_data.buf =
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	380 (U32)(&ll_unitdata_ind->sdu.buf[ll_unitdata_ind->sdu.o_buf >> 3]);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	381 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	382 * Initialize ciphering driver and decipher data
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	383 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	384 #ifdef TI_PS_OP_CIPH_DRIVER
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	385 ciph_init_cipher_req (&init_cipher_req_parms, NULL);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	386 ciph_cipher_req (&cipher_req_parms, &in_data_list, &out_data, &status);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	387 #else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	388 ciph_init_cipher_req_sim (&init_cipher_req_parms, NULL);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	389 ciph_cipher_req_sim (&cipher_req_parms, &in_data_list, &out_data, &status);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	390 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	391 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	392 * "Send" DECIPHER_CNF to LLC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	393 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	394 ll_unitdata_ind->sdu.l_buf = out_data.len * 8;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	395 ll_unitdata_ind->tlli = decipher_req->reference1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	396 ll_unitdata_ind->cipher = (UBYTE)decipher_req->reference2;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	397 if (status == CIPH_CIPH_PASS){
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	398 ll_unitdata_ind->sapi = CCI_FCS_PASSED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	399 } else {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	400 ll_unitdata_ind->sapi = CCI_FCS_FAILED;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	401 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	402
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	403 #ifdef LLC_TRACE_CIPHERING
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	404 TRACE_EVENT("DOWNLINK DECIPHERED DATA");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	405 llc_trace_sdu(&ll_unitdata_ind->sdu);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	406 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	407 rx_cci_decipher_cnf(ll_unitdata_ind);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	408 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	409 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	410 * Free in_data array from in_data_list allocated in llc_copy_dl_data_to_list
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	411 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	412 if(in_data_list.ptr_in_data != NULL){
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	413 MFREE(in_data_list.ptr_in_data);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	414 in_data_list.ptr_in_data = NULL;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	415 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	416 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	417 * Free descriptors from the deipher_req->desc_list
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	418 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	419 if (decipher_req != NULL)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	420 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	421 T_desc desc = (T_desc )decipher_req->desc_list.first;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	422 T_desc *next_desc;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	423 while (desc NEQ NULL){
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	424 next_desc = (T_desc *)desc->next;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	425 MFREE (desc);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	426 desc = next_desc;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	427 /* increase freed partitions counter */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	428 cnt++;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	429 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	430 MFREE(decipher_req);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	431 decipher_req = NULL;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	432 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	433 llc_data->fbs.cci_freed_partition +=cnt;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	434
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	435 /* trace number of freed partitions */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	436 if(llc_data->fbs.cci_info_trace){
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	437 TRACE_EVENT_P2("INFO CCI: freed partitions %ld, total=%ld",
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	438 cnt,llc_data->fbs.cci_freed_partition);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	439 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	440
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	441 } /* rx_decipher_req */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	442
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	443 #endif
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	444
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	445 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	446 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	447 \| Function : rx_send_decipher_req
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	448 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	449 \| Description : This procedure allocates the CCI_DECIPHER_REQ primitive, fills
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	450 \| in all necessary parameters and sends the primitive to CCI.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	451 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	452 \| Parameters : grlc_unitdata_ind - a valid pointer to a GRLC_UNITDATA_IND
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	453 \| primitive
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	454 \| frame_type - indicates (un)acknowledged operation mode
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	455 \| protected_mode - pm setting for CCI_DECIPHER_REQ
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	456 \| ns - N(S)/N(U) for deciphering, otherwise
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	457 \| undefined value
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	458 \| header_size - size of header bytes (not ciphered bytes)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	459 \| ciphering - indicates deciphering (TRUE/FALSE)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	460 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	461 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	462 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	463 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	464
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	465 GLOBAL void rx_send_decipher_req (T_GRLC_UNITDATA_IND *grlc_unitdata_ind,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	466 T_PDU_TYPE frame_type,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	467 UBYTE protected_mode,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	468 T_FRAME_NUM ns,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	469 USHORT header_size,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	470 BOOL ciphering)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	471 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	472 ULONG oc;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	473
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	474 TRACE_FUNCTION ("rx_send_decipher_req");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	475
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	476 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	477 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	478 * No need to PPASS GRLC_xDATA_IND, because desc_list contains a pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	479 * which can be simply copied.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	480 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	481 T_CCI_DECIPHER_REQ *cci_decipher_req;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	482 MALLOC(cci_decipher_req, sizeof(T_CCI_DECIPHER_REQ));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	483
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	484 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	485 * Requires rx_analyse_ctrl_field() to set a correct CCI value.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	486 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	487 cci_decipher_req->pm = protected_mode;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	488
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	489 if (ciphering EQ TRUE)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	490 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	491 cci_decipher_req->reference2 = LL_CIPHER_ON; /* re-use of reference is ok */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	492 cci_decipher_req->ciphering_algorithm = llc_data->ciphering_algorithm;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	493 memcpy (&cci_decipher_req->kc, &llc_data->kc, sizeof(T_kc));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	494
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	495 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	496 * Calculate the OC which is valid for this ns. This could be the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	497 * current OC or OC + 1 in case of an modulo overflow of ns
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	498 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	499 switch (frame_type)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	500 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	501 case I_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	502 case S_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	503 if (ns >= llc_data->sapi->vr)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	504 oc = llc_data->sapi->oc_i_rx;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	505 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	506 oc = llc_data->sapi->oc_i_rx + (MAX_SEQUENCE_NUMBER+1);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	507 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	508
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	509 default:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	510 if (ns >= llc_data->sapi->vur)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	511 oc = llc_data->sapi->oc_ui_rx;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	512 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	513 oc = llc_data->sapi->oc_ui_rx + (MAX_SEQUENCE_NUMBER+1);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	514 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	515 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	516
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	517 llc_generate_input (llc_data->current_sapi, frame_type, ns,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	518 &cci_decipher_req->ciphering_input, oc);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	519
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	520 cci_decipher_req->direction = CCI_DIRECTION_DOWNLINK;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	521 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	522 else /* ciphering EQ FALSE */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	523 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	524 cci_decipher_req->reference2 = LL_CIPHER_OFF;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	525 cci_decipher_req->ciphering_algorithm = CCI_CIPHER_NO_ALGORITHM;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	526 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	527
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	528 cci_decipher_req->header_size = header_size;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	529
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	530 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	531 * TLLI must be stored somewhere
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	532 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	533 cci_decipher_req->reference1 = grlc_unitdata_ind->tlli;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	534
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	535 cci_decipher_req->desc_list = grlc_unitdata_ind->desc_list;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	536
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	537 /* TRACE_EVENT ("CCI thread not available, using functional interface"); */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	538
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	539 rx_decipher_req(cci_decipher_req);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	540 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	541
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	542 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	543 } /* rx_send_decipher_req() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	544
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	545 #endif /* CF_FAST_EXEC */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	546
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	547 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	548 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	549 \| Function : rx_interpret_frame
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	550 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	551 \| Description : This procedure analyses the LLC header and checksum of the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	552 \| given frame (U, UI, or I) and sets sapi, pdu_type, command,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	553 \| cr_bit, pf_bit, nr, and ns accordingly. The FCS field is not
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	554 \| included in frame, it has already been stripped off. frame_ok
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	555 \| is set to TRUE if the frame fulfils the following requirements:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	556 \| known PDU type, valid length, valid PD bit, valid SAPI.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	557 \| frame_rej indicates a frame rejection condition if any bit of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	558 \| W4-W1 is set. If a frame is rejected, frame_rej_ctrl_length
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	559 \| indicates the length of the control field. If this length
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	560 \| could not be determined, frame_rej_ctrl_length is set to the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	561 \| number of control field octets of the frame.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	562 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	563 \| Parameters : frame - contains the frame to be analysed, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	564 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	565 \| sapi - will be set to the SAPI of the frame, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	566 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	567 \| pdu_type - will be set to the PDU type of the frame, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	568 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	569 \| command - will be set to the command (I/S, U) of the frame
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	570 \| (if available), must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	571 \| cr_bit - will be set to the C/R bit of the frame, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	572 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	573 \| pf_bit - will be set to the P/F bit of the frame (if
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	574 \| available), must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	575 \| nr - will be set to N(R) / N(U) of the frame (if
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	576 \| available), must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	577 \| ns - will be set to N(S) of the frame (if available),
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	578 \| must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	579 \| frame_ok - TRUE if the frame is ok, else FALSE, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	580 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	581 \| frame_rej - indicates a frame rejection condition, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	582 \| a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	583 \| frame_rej_ctrl_length - number of octets in the rejected
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	584 \| control field, must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	585 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	586 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	587 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	588
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	589 /*#if defined(CF_FAST_EXEC) \|\| defined(_SIMULATION_) \|\| \
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	590 !defined(REL99) \|\| defined(LL_2to1) */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	591
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	592 GLOBAL void rx_interpret_frame (T_sdu *frame,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	593 UBYTE *sapi,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	594 T_PDU_TYPE *pdu_type,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	595 T_COMMAND *command,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	596 T_BIT *cr_bit,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	597 T_BIT *pf_bit,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	598 T_FRAME_NUM *nr,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	599 T_FRAME_NUM *ns,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	600 BOOL *frame_ok,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	601 UBYTE *frame_rej,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	602 USHORT *frame_rej_ctrl_length,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	603 UBYTE cipher)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	604 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	605 USHORT min_length = 0; /* minimum required frame length */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	606 BOOL check_length; /* check/ignore length at the end */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	607
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	608 TRACE_FUNCTION( "rx_interpret_frame" );
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	609
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	610 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	611 * Preset variables with suspected success, control field length is not
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	612 * yet known, so assume complete frame length.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	613 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	614 *frame_ok = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	615 *frame_rej = FRAME_NOT_REJ;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	616 *frame_rej_ctrl_length = frame->l_buf/8 - 1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	617
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	618 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	619 * Frame length is selectively activated, depending on frame type, command,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	620 * etc. Ignore frame length per default.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	621 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	622 check_length = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	623
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	624
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	625 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	626 * Check if the frame contains enough octets to access the first octet of
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	627 * the control field to find out the type of the frame.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	628 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	629 if (frame->l_buf/8 < CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	630 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	631 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	632 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	633 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	634
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	635
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	636 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	637 * Check if PD bit is set to 0. If it is not, the frame is invalid.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	638 * <R.LLC.XCEPTION.A.001>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	639 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	640 if ((frame->buf[frame->o_buf/8] & 0x80) != 0x00)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	641 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	642 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	643 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	644 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	645
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	646
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	647 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	648 * Extract C/R bit.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	649 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	650 *cr_bit = (frame->buf[frame->o_buf/8] & 0x40) >> 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	651
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	652
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	653 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	654 * Extract SAPI and check if the frame contains a reserved SAPI.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	655 * <R.LLC.XCEPTION.A.001>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	656 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	657 *sapi = frame->buf[frame->o_buf/8] & 0x0F;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	658 switch (sapi) / !!!!! constants or function/macro to determine invalid sapis */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	659 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	660 case 0:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	661 case 2:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	662 case 4:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	663 case 6:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	664 case 8:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	665 case 10:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	666 case 12:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	667 case 13:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	668 case 14:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	669 case 15:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	670 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	671 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	672 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	673 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	674 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	675
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	676
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	677 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	678 * Determine the PDU type of the frame, along with the minimum length
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	679 * required for this PDU type to constitute a complete frame.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	680 * Additionally, extract available variables for each PDU type.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	681 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	682 if ((frame->buf[(frame->o_buf/8)+1] & I_FRAME_MASK) EQ I_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	683 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	684 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	685 * I frame, at least 5 octets (1 Address, 3 Control, 1(++)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	686 * Information, no FCS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	687 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	688 *pdu_type = I_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	689 min_length = I_FRAME_MIN_OCTETS_WITHOUT_FCS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	690 *frame_rej_ctrl_length = I_CTRL_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	691
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	692 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	693 * Extract A bit (stored in P/F bit)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	694 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	695 *pf_bit = (frame->buf[(frame->o_buf/8)+1] & 0x40) >> 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	696
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	697 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	698 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	699 * I frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	700 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	701 if (frame->l_buf/8 < I_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	702 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	703 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	704 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	705 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	706
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	707 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	708 * Extract N(S), N(R)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	709 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	710 *ns = (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+1] & 0x1F) << 4;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	711 *ns \|= (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+2] >> 4);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	712
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	713 *nr = (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+2] & 0x07) << 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	714 *nr \|= (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+3] >> 2);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	715
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	716 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	717 * Determine the command of the I frame (S1 & S2 bits)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	718 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	719 switch (frame->buf[(frame->o_buf/8)+3] & 0x03)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	720 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	721 case I_FRAME_RR:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	722 TRACE_4_PARA("I-RR s:%d len:%d nr:%d ns:%d", sapi, BYTELEN(frame->l_buf), nr, *ns);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	723 *command = I_RR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	724 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	725
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	726 case I_FRAME_ACK:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	727 TRACE_4_PARA("I-ACK s:%d len:%d nr:%d ns:%d", sapi, BYTELEN(frame->l_buf), nr, *ns);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	728 *command = I_ACK;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	729 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	730
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	731 case I_FRAME_RNR:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	732 TRACE_4_PARA("I-RNR s:%d len:%d nr:%d ns:%d", sapi, BYTELEN(frame->l_buf), nr, *ns);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	733 *command = I_RNR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	734 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	735
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	736 case I_FRAME_SACK:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	737 TRACE_4_PARA("I-SACK s:%d len:%d nr:%d ns:%d", sapi, BYTELEN(frame->l_buf), nr, *ns);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	738 *command = I_SACK;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	739
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	740 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	741 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	742 * I frame SACK control field. K is at octet I_CTRL_MIN_OCTETS + 1
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	743 * and there must be at least K+1 octets within the bitmap. Therefore
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	744 * the frame must contain a minimum of I_CTRL_MIN_OCTETS+2.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	745 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	746 if (frame->l_buf/8 < I_CTRL_MIN_OCTETS+2)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	747 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	748 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	749 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	750 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	751
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	752 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	753 * min_length is being modified to be more accurate for SACK frames,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	754 * according to the Bitmap Length Indicator K in
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	755 * frame->buf[(frame->o_buf/8)+4].
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	756 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	757 min_length += (frame->buf[(frame->o_buf/8)+4] & 0x1F) + 1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	758
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	759 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	760 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	761
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	762 default:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	763 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	764 * Frame rejection condition due to receipt of a command or
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	765 * response field that is undefined or not implemented (set
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	766 * W3 bit to 1).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	767 * <R.LLC.XCEPTION.A.002>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	768 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	769 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	770 *frame_rej = FRAME_REJ_W3;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	771 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	772 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	773 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	774 else if ((frame->buf[(frame->o_buf/8)+1] & S_FRAME_MASK) EQ S_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	775 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	776 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	777 * S frame, fixed 3 octets (1 Address, 2 Control, 0 Information, no FCS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	778 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	779 *pdu_type = S_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	780 min_length = S_FRAME_MIN_OCTETS_WITHOUT_FCS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	781 *frame_rej_ctrl_length = S_CTRL_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	782
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	783 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	784 * Extract A bit (stored in P/F bit)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	785 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	786 *pf_bit = (frame->buf[(frame->o_buf/8)+1] & 0x20) >> 5;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	787
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	788 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	789 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	790 * S frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	791 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	792 if (frame->l_buf/8 < S_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	793 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	794 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	795 *frame_rej = FRAME_REJ_W1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	796 *frame_rej_ctrl_length = frame->l_buf/8 - 1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	797 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	798 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	799
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	800 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	801 * Extract N(R)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	802 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	803 *nr = (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+1] & 0x07) << 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	804 *nr \|= (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+2] >> 2);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	805
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	806 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	807 * Determine the command of the S frame (S1 & S2 bits)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	808 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	809 switch (frame->buf[(frame->o_buf/8)+2] & 0x03)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	810 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	811 case I_FRAME_RR:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	812 TRACE_2_PARA("S-RR s:%d nr:%d", sapi, nr);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	813 *command = I_RR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	814 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	815 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	816
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	817 case I_FRAME_ACK:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	818 TRACE_2_PARA("S-ACK s:%d nr:%d", sapi, nr);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	819 *command = I_ACK;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	820 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	821 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	822
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	823 case I_FRAME_RNR:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	824 TRACE_2_PARA("S-RNR s:%d nr:%d", sapi, nr);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	825 *command = I_RNR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	826 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	827 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	828
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	829 case I_FRAME_SACK:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	830 TRACE_2_PARA("S-SACK s:%d nr:%d", sapi, nr);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	831 *command = I_SACK;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	832 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	833 * min_length is being modified to be more accurate for SACK frames.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	834 * The S frame SACK format adds a number of up to 32 octets to the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	835 * control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	836 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	837 min_length += S_FRAME_SACK_MIN_CTRL_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	838
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	839 check_length = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	840 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	841
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	842 default:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	843 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	844 * Frame rejection condition due to receipt of a command or
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	845 * response field that is undefined or not implemented (set
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	846 * W3 bit to 1).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	847 * <R.LLC.XCEPTION.A.002>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	848 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	849 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	850 *frame_rej = FRAME_REJ_W3;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	851 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	852 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	853 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	854 else if ((frame->buf[(frame->o_buf/8)+1] & UI_FRAME_MASK) EQ UI_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	855 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	856 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	857 * UI frame, at least 3 octets (1 Address, 2 Control, 0(++)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	858 * Information, no FCS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	859 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	860 *pdu_type = UI_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	861 min_length = UI_FRAME_MIN_OCTETS_WITHOUT_FCS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	862 *frame_rej_ctrl_length = UI_CTRL_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	863
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	864 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	865 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	866 * UI frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	867 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	868 if (frame->l_buf/8 < UI_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	869 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	870 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	871 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	872 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	873
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	874 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	875 * Extract N(U) (is stored in N(R))
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	876 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	877 *nr = (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+1] & 0x07) << 6;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	878 *nr \|= (T_FRAME_NUM)(frame->buf[(frame->o_buf/8)+2] >> 2);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	879
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	880 TRACE_4_PARA("UI s:%d len:%d nr:%d c:%d", sapi, BYTELEN(frame->l_buf), nr, cipher);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	881 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	882 else if ((frame->buf[(frame->o_buf/8)+1] & U_FRAME_MASK) EQ U_FRAME_ID)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	883 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	884 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	885 * U frame, at least 2 octets (1 Address, 1 Control, 0(++)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	886 * Information, no FCS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	887 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	888 *pdu_type = U_FRAME;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	889 min_length = U_FRAME_MIN_OCTETS_WITHOUT_FCS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	890 *frame_rej_ctrl_length = U_CTRL_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	891
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	892 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	893 * Extract P/F bit
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	894 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	895 *pf_bit = (frame->buf[(frame->o_buf/8)+1] & 0x10) >> 4;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	896
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	897 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	898 * Check if the frame contains enough octets to access the complete
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	899 * U frame control field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	900 * NOTE:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	901 * This check could be omitted, because the U frame control field size
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	902 * is only one octet.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	903 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	904 if (frame->l_buf/8 < U_CTRL_MIN_OCTETS)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	905 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	906 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	907 *frame_rej = FRAME_REJ_W1;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	908 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	909 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	910
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	911 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	912 * Determine the command of the U frame (M4, M3, M2, M1).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	913 * Adjust the minimum length of the frame, if possible.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	914 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	915 switch (frame->buf[(frame->o_buf/8)+1] & 0x0F)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	916 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	917 case U_FRAME_DM:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	918 TRACE_1_PARA("DM s:%d", *sapi);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	919 *command = U_DM;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	920 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	921 * No information field is permitted.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	922 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	923 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	924 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	925 case U_FRAME_DISC:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	926 TRACE_1_PARA("DISC s:%d", *sapi);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	927 *command = U_DISC;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	928 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	929 * No information field is permitted.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	930 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	931 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	932 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	933 case U_FRAME_UA:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	934 TRACE_2_PARA("UA s:%d len:%d", *sapi, BYTELEN(frame->l_buf));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	935 *command = U_UA;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	936 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	937 * No knowledge if an information field is permitted, because
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	938 * this is only the case when UA is the response to SABM.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	939 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	940 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	941 case U_FRAME_SABM:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	942 TRACE_2_PARA("SABM s:%d len:%d", *sapi, BYTELEN(frame->l_buf));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	943 *command = U_SABM;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	944 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	945 * An information field is permitted, containing XID
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	946 * parameters. Therefore the size of the information field
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	947 * is not (yet) known.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	948 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	949 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	950 case U_FRAME_FRMR:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	951 TRACE_1_PARA("FRMR s:%d", *sapi);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	952 *command = U_FRMR;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	953 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	954 * FRMR response contains an information field of 10 octets.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	955 * <R.LLC.XCEPTION.A.008>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	956 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	957 min_length += U_FRAME_FRMR_INFO_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	958 check_length = TRUE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	959 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	960 case U_FRAME_XID:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	961 if( *cr_bit == SGSN_COMMAND )
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	962 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	963 TRACE_2_PARA("XID REQ s:%d len:%d", *sapi, BYTELEN(frame->l_buf));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	964 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	965 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	966 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	967 TRACE_2_PARA("XID RSP s:%d len:%d", *sapi, BYTELEN(frame->l_buf));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	968 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	969 *command = U_XID;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	970 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	971 * An information field is required, containing XID
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	972 * parameters. Therefore the size of the information field
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	973 * is not (yet) known.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	974 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	975 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	976 default:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	977 TRACE_0_INFO("Not supported U frame received");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	978 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	979 * Frame rejection condition due to receipt of a command or
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	980 * response field that is undefined or not implemented (set
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	981 * W3 bit to 1).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	982 * <R.LLC.XCEPTION.A.002>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	983 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	984 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	985 *frame_rej = FRAME_REJ_W3;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	986 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	987 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	988 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	989
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	990
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	991 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	992 * Determine if it is requested to check the frame length exactly
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	993 * (check_length EQ TRUE), or just to check the minimum frame length
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	994 * (check_length EQ FALSE).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	995 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	996 if (check_length AND (frame->l_buf/8 NEQ min_length))
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	997 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	998 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	999 * Actual length of frame doesn't correspond with computed length.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1000 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1001 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1002
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1003 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1004 * Check if frame rejection condition occured: S or U frame with
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1005 * incorrect length (= W1 + W3 bits). frame_rej_ctrl_length has already
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1006 * been set above to the correct control field length.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1007 * <R.LLC.XCEPTION.A.002>, <R.LLC.XCEPTION.A.010>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1008 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1009 if ((pdu_type EQ S_FRAME) OR (pdu_type EQ U_FRAME))
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1010 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1011 *frame_rej = FRAME_REJ_W1 \| FRAME_REJ_W3;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1012 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1013 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1014 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1015 else if (frame->l_buf/8 < min_length)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1016 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1017 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1018 * Frame doesn't contain enough octets to include the address field,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1019 * control field, information field, and FCS field necessary to constitute
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1020 * a complete frame according to the PDU type.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1021 * <R.LLC.XCEPTION.A.001>
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1022 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1023 *frame_ok = FALSE;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1024 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1025 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1026
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1027 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1028 } /* rx_interpret_frame() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1029
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1030 /* #endif / / CF_FAST_EXEC \|\| _SIMULATION_ */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1031
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1032
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1033 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1034 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1035 \| Function : rx_strip_llc_header
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1036 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1037 \| Description : This procedure strips the LLC header field off of the sdu
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1038 \| so that the sdu contains only the remaining L3-PDU.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1039 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1040 \| Parameters : sdu - contains the SDU (frame), must be a valid pointer
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1041 \| pdu_type - contains the PDU type of the frame, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1042 \| a valid PDU type
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1043 \| command - contains the command (I/S, U) of the frame, must be
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1044 \| a valid command for the given PDU type
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1045 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1046 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1047 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1048
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1049 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1050
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1051 GLOBAL void rx_strip_llc_header (T_sdu *sdu,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1052 T_PDU_TYPE pdu_type,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1053 T_COMMAND command)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1054 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1055 UBYTE header_len = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1056
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1057
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1058 TRACE_FUNCTION ("rx_strip_llc_header");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1059
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1060 switch (pdu_type)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1061 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1062 case I_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1063 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1064 * I frame 4 octets. Leave SACK Bitmap in PDU, will be stripped later!
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1065 * (1 Address, 3Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1066 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1067 header_len = I_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1068 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1069 case S_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1070 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1071 * S frame 3 octets. Leave SACK Bitmap in PDU, will be stripped later!
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1072 * (1 Address, 2(+32 max) Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1073 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1074 header_len = S_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1075 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1076 case UI_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1077 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1078 * UI frame, 3 octets (1 Address, 2 Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1079 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1080 header_len = UI_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1081 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1082 case U_FRAME:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1083 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1084 * U frame, 2 octets (1 Address, 1 Control).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1085 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1086 header_len = U_CTRL_MIN_OCTETS;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1087 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1088 default:
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1089 TRACE_ERROR ("Unknown PDU type");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1090 break;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1091 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1092
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1093 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1094 * Adjust the beginning of the PDU using the determined header_len.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1095 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1096 sdu->o_buf += header_len * 8;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1097
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1098 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1099 * Adjust the length of the PDU by the size of the header field.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1100 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1101 sdu->l_buf -= header_len * 8;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1102
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1103 return;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1104 } /* rx_strip_llc_header() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1105
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1106 #endif /* CF_FAST_EXEC */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1107
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1108 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1109 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1110 \| Function : rx_get_desc_octet
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1111 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1112 \| Description : This procedure maps the given linear offset to a descriptor
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1113 \| list and returns the value of the octet at this offset. If
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1114 \| offset is too large for descriptor list, 0x00 is returned.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1115 \| Each descriptor in descriptor list is evaluated until the
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1116 \| requested offset is reached. The resulting octet value is
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1117 \| written to the referenced parameter data_ptr (if not set to
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1118 \| NULL), and is additionally returned.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1119 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1120 \| Parameters : desc_list - a valid pointer to a valid descriptor list
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1121 \| offset - linear octet offset, beginning with 0
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1122 \| data_ptr - a valid pointer to be set to the resulting octet
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1123 \| value, or NULL
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1124 \|
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1125 +------------------------------------------------------------------------------
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1126 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1127
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1128 #ifndef CF_FAST_EXEC
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1129
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1130 GLOBAL UBYTE rx_get_desc_octet (T_desc_list *desc_list,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1131 USHORT offset,
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1132 UBYTE *data_ptr)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1133 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1134 T_desc *desc;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1135 UBYTE desc_data; / local pointer to data octet */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1136
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1137 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1138 * Check if offset is contained in descriptor list. Return 0x00 if not.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1139 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1140 if (offset >= desc_list->list_len)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1141 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1142 TRACE_ERROR ("offset too large for descriptor list");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1143 return 0x00;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1144 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1145
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1146 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1147 * Search requested data with given linear offset in descriptor list.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1148 * Empty descriptors are skipped. Check for each descriptor if requested
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1149 * offset is in descriptor, until it is found.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1150 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1151 desc = (T_desc *)desc_list->first;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1152 desc_data = NULL;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1153 do
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1154 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1155 if (offset < desc->len)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1156 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1157 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1158 * Requested data is in current descriptor. Set desc_data to point to
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1159 * requested octet with remaining offset (has been decremented by
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1160 * already passed descriptor payload).
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1161 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1162 /lint -e662 Possible creation of out-of-bounds pointer /
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1163 desc_data = &(desc->buffer[offset]);
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1164 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1165 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1166 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1167 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1168 * Requested data is not in current descriptor. Remember data payload
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1169 * of current descriptor as already passed.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1170 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1171 offset -= desc->len;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1172 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1173
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1174 desc = (T_desc *)desc->next;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1175 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1176 while ((desc NEQ NULL) AND (desc_data EQ NULL));
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1177
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1178
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1179 if (desc_data EQ NULL)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1180 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1181 TRACE_ERROR ("descriptor list ended before offset found");
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1182
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1183 if (data_ptr NEQ NULL)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1184 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1185 *data_ptr = 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1186 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1187
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1188 return 0;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1189 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1190 else
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1191 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1192 /*
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1193 * Store value of found octet in data_ptr, if pointer is valid.
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1194 */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1195 if (data_ptr NEQ NULL)
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1196 {
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1197 /lint -e661 Possible access of out-of-bounds pointer /
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1198 data_ptr = desc_data;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1199 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1200
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1201 return *desc_data;
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1202 }
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1203 } /* rx_get_desc_octet() */
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1204
fa8dc04885d8 src/g23m-: import from Magnetite Mychaela Falconia <falcon@freecalypso.org>* parents: diff changeset	1205 #endif /* CF_FAST_EXEC */

FreeCalypso > hg > fc-tourmaline

annotate src/g23m-gprs/llc/llc_rxf.c @ 303:f76436d19a7a default tip