1 /*
2  * Copyright 2008-2015 Freescale Semiconductor Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above copyright
9  *       notice, this list of conditions and the following disclaimer in the
10  *       documentation and/or other materials provided with the distribution.
11  *     * Neither the name of Freescale Semiconductor nor the
12  *       names of its contributors may be used to endorse or promote products
13  *       derived from this software without specific prior written permission.
14  *
15  *
16  * ALTERNATIVELY, this software may be distributed under the terms of the
17  * GNU General Public License ("GPL") as published by the Free Software
18  * Foundation, either version 2 of that License or (at your option) any
19  * later version.
20  *
21  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /******************************************************************************
34  @File          fm_macsec.h
35 
36  @Description   FM MACSEC internal structures and definitions.
37 *//***************************************************************************/
38 #ifndef __FM_MACSEC_H
39 #define __FM_MACSEC_H
40 
41 #include "error_ext.h"
42 #include "std_ext.h"
43 #include "fm_macsec_ext.h"
44 
45 #include "fm_common.h"
46 
47 
48 #define __ERR_MODULE__  MODULE_FM_MACSEC
49 
50 
51 typedef struct
52 {
53     t_Error (*f_FM_MACSEC_Init) (t_Handle h_FmMacsec);
54     t_Error (*f_FM_MACSEC_Free) (t_Handle h_FmMacsec);
55 
56     t_Error (*f_FM_MACSEC_ConfigUnknownSciFrameTreatment) (t_Handle h_FmMacsec, e_FmMacsecUnknownSciFrameTreatment treatMode);
57     t_Error (*f_FM_MACSEC_ConfigInvalidTagsFrameTreatment) (t_Handle h_FmMacsec, bool deliverUncontrolled);
58     t_Error (*f_FM_MACSEC_ConfigEncryptWithNoChangedTextFrameTreatment) (t_Handle h_FmMacsec, bool discardUncontrolled);
59     t_Error (*f_FM_MACSEC_ConfigChangedTextWithNoEncryptFrameTreatment) (t_Handle h_FmMacsec, bool deliverUncontrolled);
60     t_Error (*f_FM_MACSEC_ConfigUntagFrameTreatment) (t_Handle h_FmMacsec, e_FmMacsecUntagFrameTreatment treatMode);
61     t_Error (*f_FM_MACSEC_ConfigOnlyScbIsSetFrameTreatment) (t_Handle h_FmMacsec, bool deliverUncontrolled);
62     t_Error (*f_FM_MACSEC_ConfigPnExhaustionThreshold) (t_Handle h_FmMacsec, uint32_t pnExhThr);
63     t_Error (*f_FM_MACSEC_ConfigKeysUnreadable) (t_Handle h_FmMacsec);
64     t_Error (*f_FM_MACSEC_ConfigSectagWithoutSCI) (t_Handle h_FmMacsec);
65     t_Error (*f_FM_MACSEC_ConfigException) (t_Handle h_FmMacsec, e_FmMacsecExceptions exception, bool enable);
66 
67     t_Error (*f_FM_MACSEC_GetRevision) (t_Handle h_FmMacsec, uint32_t *p_MacsecRevision);
68     t_Error (*f_FM_MACSEC_Enable) (t_Handle h_FmMacsec);
69     t_Error (*f_FM_MACSEC_Disable) (t_Handle h_FmMacsec);
70     t_Error (*f_FM_MACSEC_SetException) (t_Handle h_FmMacsec, e_FmMacsecExceptions exception, bool enable);
71 
72 } t_FmMacsecControllerDriver;
73 
74 t_Handle  FM_MACSEC_GUEST_Config(t_FmMacsecParams *p_FmMacsecParam);
75 t_Handle  FM_MACSEC_MASTER_Config(t_FmMacsecParams *p_FmMacsecParams);
76 
77 /***********************************************************************/
78 /*  MACSEC internal routines                                              */
79 /***********************************************************************/
80 
81 /**************************************************************************//**
82 
83  @Group         FM_MACSEC_InterModule_grp FM MACSEC Inter-Module Unit
84 
85  @Description   FM MACSEC Inter Module functions -
86                 These are not User API routines but routines that may be called
87                 from other modules. This will be the case in a single core environment,
88                 where instead of using the XX messaging mechanism, the routines may be
89                 called from other modules. In a multicore environment, the other modules may
90                 be run by other cores and therefore these routines may not be called directly.
91 
92  @{
93 *//***************************************************************************/
94 
95 #define MAX_NUM_OF_SA_PER_SC        4
96 
97 typedef enum
98 {
99     e_SC_RX = 0,
100     e_SC_TX
101 } e_ScType;
102 
103 typedef enum
104 {
105     e_SC_SA_A = 0,
106     e_SC_SA_B ,
107     e_SC_SA_C ,
108     e_SC_SA_D
109 } e_ScSaId;
110 
111 typedef struct
112 {
113     uint32_t                        scId;
114     macsecSCI_t                     sci;
115     bool                            replayProtect;
116     uint32_t                        replayWindow;
117     e_FmMacsecValidFrameBehavior    validateFrames;
118     uint16_t                        confidentialityOffset;
119     e_FmMacsecSecYCipherSuite       cipherSuite;
120 } t_RxScParams;
121 
122 typedef struct
123 {
124     uint32_t                        scId;
125     macsecSCI_t                     sci;
126     bool                            protectFrames;
127     e_FmMacsecSciInsertionMode      sciInsertionMode;
128     bool                            confidentialityEnable;
129     uint16_t                        confidentialityOffset;
130     e_FmMacsecSecYCipherSuite       cipherSuite;
131 } t_TxScParams;
132 
133 typedef enum e_FmMacsecGlobalExceptions {
134     e_FM_MACSEC_EX_TX_SC,               /**< Tx Sc 0 frame discarded error. */
135     e_FM_MACSEC_EX_ECC                  /**< MACSEC memory ECC multiple-bit error. */
136 } e_FmMacsecGlobalExceptions;
137 
138 typedef enum e_FmMacsecGlobalEvents {
139     e_FM_MACSEC_EV_TX_SC_NEXT_PN        /**< Tx Sc 0 Next Pn exhaustion threshold reached. */
140 } e_FmMacsecGlobalEvents;
141 
142 /**************************************************************************//**
143  @Description   Enum for inter-module interrupts registration
144 *//***************************************************************************/
145 typedef enum e_FmMacsecEventModules{
146     e_FM_MACSEC_MOD_SC_TX,
147     e_FM_MACSEC_MOD_DUMMY_LAST
148 } e_FmMacsecEventModules;
149 
150 typedef enum e_FmMacsecInterModuleEvent {
151     e_FM_MACSEC_EV_SC_TX,
152     e_FM_MACSEC_EV_ERR_SC_TX,
153     e_FM_MACSEC_EV_DUMMY_LAST
154 } e_FmMacsecInterModuleEvent;
155 
156 #define NUM_OF_INTER_MODULE_EVENTS (NUM_OF_TX_SC * 2)
157 
158 #define GET_MACSEC_MODULE_EVENT(mod, id, intrType, event) \
159     switch(mod){                                          \
160         case e_FM_MACSEC_MOD_SC_TX:                       \
161              event = (intrType == e_FM_INTR_TYPE_ERR) ?   \
162                         e_FM_MACSEC_EV_ERR_SC_TX:         \
163                         e_FM_MACSEC_EV_SC_TX;             \
164              event += (uint8_t)(2 * id);break;            \
165             break;                                        \
166         default:event = e_FM_MACSEC_EV_DUMMY_LAST;        \
167         break;}
168 
169 void FmMacsecRegisterIntr(t_Handle                h_FmMacsec,
170                           e_FmMacsecEventModules  module,
171                           uint8_t                 modId,
172                           e_FmIntrType            intrType,
173                           void (*f_Isr) (t_Handle h_Arg, uint32_t id),
174                           t_Handle                h_Arg);
175 
176 void FmMacsecUnregisterIntr(t_Handle                h_FmMacsec,
177                             e_FmMacsecEventModules  module,
178                             uint8_t                 modId,
179                             e_FmIntrType            intrType);
180 
181 t_Error FmMacsecAllocScs(t_Handle h_FmMacsec, e_ScType type, bool isPtp, uint32_t numOfScs, uint32_t *p_ScIds);
182 t_Error FmMacsecFreeScs(t_Handle h_FmMacsec, e_ScType type, uint32_t numOfScs, uint32_t *p_ScIds);
183 t_Error FmMacsecCreateRxSc(t_Handle h_FmMacsec, t_RxScParams *p_RxScParams);
184 t_Error FmMacsecDeleteRxSc(t_Handle h_FmMacsec, uint32_t scId);
185 t_Error FmMacsecCreateTxSc(t_Handle h_FmMacsec, t_TxScParams *p_RxScParams);
186 t_Error FmMacsecDeleteTxSc(t_Handle h_FmMacsec, uint32_t scId);
187 t_Error FmMacsecCreateRxSa(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, macsecAN_t an, uint32_t lowestPn, macsecSAKey_t key);
188 t_Error FmMacsecCreateTxSa(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, macsecSAKey_t key);
189 t_Error FmMacsecDeleteRxSa(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId);
190 t_Error FmMacsecDeleteTxSa(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId);
191 t_Error FmMacsecRxSaSetReceive(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, bool enableReceive);
192 t_Error FmMacsecRxSaUpdateNextPn(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, uint32_t updtNextPN);
193 t_Error FmMacsecRxSaUpdateLowestPn(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, uint32_t updtLowestPN);
194 t_Error FmMacsecTxSaSetActive(t_Handle h_FmMacsec, uint32_t scId, e_ScSaId saId, macsecAN_t an);
195 t_Error FmMacsecTxSaGetActive(t_Handle h_FmMacsec, uint32_t scId, macsecAN_t *p_An);
196 t_Error FmMacsecSetPTP(t_Handle h_FmMacsec, bool enable);
197 
198 t_Error FmMacsecSetException(t_Handle h_FmMacsec, e_FmMacsecGlobalExceptions exception, uint32_t scId, bool enable);
199 t_Error FmMacsecSetEvent(t_Handle h_FmMacsec, e_FmMacsecGlobalEvents event, uint32_t scId, bool enable);
200 
201 
202 
203 #endif /* __FM_MACSEC_H */
204