📄 mac_security.lst
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##############################################################################
# #
# IAR 8051 C/C++ Compiler V7.20H/W32 16/Jan/2007 15:33:50 #
# Copyright 2004-2006 IAR Systems. All rights reserved. #
# #
# Core = plain #
# Code model = banked #
# Data model = large #
# Calling convention = xdata reentrant #
# Constant location = data #
# Dptr setup = 1,16 #
# Source file = E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engi #
# ne\lib\mac\CC2430\mac_security.c #
# Command line = -I "C:\Program Files\IAR Systems\Embedded #
# Workbench 4.05 Evaluation version\8051\INC\" -I #
# "C:\Program Files\IAR Systems\Embedded Workbench #
# 4.05 Evaluation version\8051\SRC\LIB\" -I #
# "C:\Program Files\IAR Systems\Embedded Workbench #
# 4.05 Evaluation version\8051\INC\CLIB\" -I #
# E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engi #
# ne\Test\mac\mac_loc\..\..\..\include\ -I #
# E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engi #
# ne\Test\mac\mac_loc\..\..\..\include\mac\cc2430\ #
# -I E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_E #
# ngine\Test\mac\mac_loc\..\..\..\include\hal\cc243 #
# 0\ -I E:\公司产品资料\Zigbee\cc2431\cc2431定位\LO #
# C_Engine\Test\mac\mac_loc\..\..\..\apps\ -D #
# USE_LED -D SOC_BB -lCN "E:\公司产品资料\Zigbee\cc #
# 2431\cc2431定位\LOC_Engine\Test\mac\mac_loc\SOC_B #
# B, hex\List\" -lA "E:\公司产品资料\Zigbee\cc2431\ #
# cc2431定位\LOC_Engine\Test\mac\mac_loc\SOC_BB, #
# hex\List\" -o "E:\公司产品资料\Zigbee\cc2431\cc24 #
# 31定位\LOC_Engine\Test\mac\mac_loc\SOC_BB, #
# hex\Obj\" -e -s9 --debug --core=plain #
# --dptr=16,1 --data_model=large #
# --code_model=banked --calling_convention=xdata_re #
# entrant --place_constants=data --nr_virtual_regs #
# 8 E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_En #
# gine\lib\mac\CC2430\mac_security.c #
# List file = E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engi #
# ne\Test\mac\mac_loc\SOC_BB, #
# hex\List\mac_security.lst #
# Object file = E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engi #
# ne\Test\mac\mac_loc\SOC_BB, #
# hex\Obj\mac_security.r51 #
# #
# #
##############################################################################
E:\公司产品资料\Zigbee\cc2431\cc2431定位\LOC_Engine\lib\mac\CC2430\mac_security.c
1 /*******************************************************************************************************
2 * *
3 * ********** *
4 * ************ *
5 * *** *** *
6 * *** +++ *** *
7 * *** + + *** *
8 * *** + CHIPCON CC2430 INTEGRATED 802.15.4 MAC AND PHY *
9 * *** + + *** MAC Security Support *
10 * *** +++ *** *
11 * *** *** *
12 * ************ *
13 * ********** *
14 * *
15 *******************************************************************************************************
16 * CONFIDENTIAL *
17 * The use of this file is restricted by the signed MAC software license agreement. *
18 * *
19 * Copyright Chipcon AS, 2005 *
20 *******************************************************************************************************
21 * This file implements the MAC security support functions, used internally in the MAC sublayer *
22 *******************************************************************************************************/
23 #include <mac_headers.h>
24
25
26 #if (MAC_OPT_SECURITY)
27
28 //-------------------------------------------------------------------------------------------------------
29 // BYTE msecFindSecurityMaterial(BOOL isTX, BYTE addrMode, WORD panId, ADDRESS *pAddr, ...
30 //
31 // DESCRIPTION:
32 // Support function for selecting the correct security material.
33 // First search the ACL, then default security. If neither is available for this frame,
34 // return with the value UNAVAILABLE_KEY
35 // Used ONLY for outgoing packets (incoming packets handled in receive routine)
36 //
37 // PARAMETERS:
38 //
39 // RETURN VALUE:
40 // BYTE
41 // UNAVAILABLE_KEY if no key is available
42 // securitySuite (0 - 7) otherwise
43 //-------------------------------------------------------------------------------------------------------
44 ROOT void msecFindTxSecurityMaterial(MAC_TX_PACKET *pPacket, BOOL securityEnable, BYTE addrMode, WORD panId, ADDRESS *pAddr) {
45 BYTE n;
46 BOOL aclFound = FALSE;
47 BYTE securitySuite;
48 SECURITY_MATERIAL *pSecurityMaterial;
49
50 if (securityEnable) {
51 securitySuite = UNAVAILABLE_KEY;
52 pSecurityMaterial = NULL;
53
54 // Search through ACL for extended addresses
55 for (n=0; n<mpib.macACLEntryDescriptorSetSize; n++) {
56 if (addrMode == AM_EXTENDED_64) {
57 if (msupCompareAddress(&pAddr->Extended, &mpib.ppMacACLEntryDescriptorSet[n]->extendedAddress)) {
58 aclFound = TRUE;
59 break;
60 }
61 } else if ((addrMode == AM_SHORT_16) && (panId == mpib.ppMacACLEntryDescriptorSet[n]->panId)) {
62 if (pAddr->Short == mpib.ppMacACLEntryDescriptorSet[n]->shortAddress) {
63 aclFound = TRUE;
64 break;
65 }
66 }
67 }
68
69 if (aclFound) {
70 pSecurityMaterial = &mpib.ppMacACLEntryDescriptorSet[n]->securityMaterial;
71 securitySuite = mpib.ppMacACLEntryDescriptorSet[n]->securitySuite;
72
73 // Is default security available ?
74 // Default security can only be used in TX (when the 64 bit destination address is equal to
75 // aExtendedAddress) or in RX when the source address mode is extended.
76 } else if ((mpib.macSecurityMode == MAC_SECURED_MODE) && (mpib.macDefaultSecurity) && (securityEnable)) {
77 // Default security enabled
78 pSecurityMaterial = mpib.pMacDefaultSecurityMaterial;
79 securitySuite = mpib.macDefaultSecuritySuite;
80 }
81
82 pPacket->pSecurityMaterial = pSecurityMaterial;
83 pPacket->securitySuite = securitySuite;
84
85 } else {
86 // Security not enabled, no key is necessary
87 pPacket->securitySuite = MAC_SECURITY_NONE;
88 }
89 } // msecFindSecurityMaterial
90
91
92
93
94 //-------------------------------------------------------------------------------------------------------
95 // void msecDecodeSecuritySuite(MSEC_SETUP_INFO *pMSI, BYTE securityMode)
96 //
97 // DESCRIPTION:
98 // Decodes the given security mode, and sets up the MSEC_SETUP_INFO struct with the necessary
99 // information.
100 //
101 // PARAMETERS:
102 // MSEC_SETUP_INFO *pMSI
103 // Pointer to the MSEC_SETUP_INFO struct used for RX or TX
104 //
105 // BYTE securityMode
106 // MAC security mode
107 // (MAC_SECURITY_NONE | MAC_SECURITY_AES_CTR | MAC_SECURITY_AES_CCM128 |
108 // MAC_SECURITY_AES_CCM64 | MAC_SECURITY_AES_CCM32 | MAC_SECURITY_AES_CBC_MAC128 |
109 // MAC_SECURITY_AES_CBC_MAC64 | MAC_SECURITY_AES_CBC_MAC32)
110 //
111 // RETURN VALUE:
112 // void
113 //-------------------------------------------------------------------------------------------------------
114 ROOT void msecDecodeSecuritySuite(MSEC_SETUP_INFO *pMSI, BYTE securitySuite) {
115
116 // Which security mode is used?
117 switch (securitySuite) {
118 case MAC_SECURITY_AES_CCM128:
119 pMSI->secFlags2420 = MAC_CC2420_CCM_FLAGS;
120 pMSI->secMode2420 = CC2420_SECCTRL0_CCM | (7 << CC2420_SECCTRL0_SEC_M_IDX);
121 pMSI->micLength = 16;
122 break;
123 case MAC_SECURITY_AES_CCM64:
124 pMSI->secFlags2420 = MAC_CC2420_CCM_FLAGS;
125 pMSI->secMode2420 = CC2420_SECCTRL0_CCM | (3 << CC2420_SECCTRL0_SEC_M_IDX);
126 pMSI->micLength = 8;
127 break;
128 case MAC_SECURITY_AES_CCM32:
129 pMSI->secFlags2420 = MAC_CC2420_CCM_FLAGS;
130 pMSI->secMode2420 = CC2420_SECCTRL0_CCM | (1 << CC2420_SECCTRL0_SEC_M_IDX);
131 pMSI->micLength = 4;
132 break;
133 case MAC_SECURITY_AES_CBC_MAC128:
134 pMSI->secFlags2420 = 0;
135 pMSI->secMode2420 = CC2420_SECCTRL0_CBC_MAC | (7 << CC2420_SECCTRL0_SEC_M_IDX);
136 pMSI->micLength = 16;
137 pMSI->clearTextLength = 0;
138 break;
139 case MAC_SECURITY_AES_CBC_MAC64:
140 pMSI->secFlags2420 = 0;
141 pMSI->secMode2420 = CC2420_SECCTRL0_CBC_MAC | (3 << CC2420_SECCTRL0_SEC_M_IDX);
142 pMSI->micLength = 8;
143 pMSI->clearTextLength = 0;
144 break;
145 case MAC_SECURITY_AES_CBC_MAC32:
146 pMSI->secFlags2420 = 0;
147 pMSI->secMode2420 = CC2420_SECCTRL0_CBC_MAC | (1 << CC2420_SECCTRL0_SEC_M_IDX);
148 pMSI->micLength = 4;
149 pMSI->clearTextLength = 0;
150 break;
151 case MAC_SECURITY_AES_CTR:
152 pMSI->secFlags2420 = MAC_CC2420_CTR_FLAGS;
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