| 1 | #!/usr/bin/perl |
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| 2 | # (c)2003-2011 Broadcom Corporation |
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| 3 | # |
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| 4 | # This program is the proprietary software of Broadcom Corporation and/or its licensors, |
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| 5 | # and may only be used, duplicated, modified or distributed pursuant to the terms and |
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| 6 | # conditions of a separate, written license agreement executed between you and Broadcom |
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| 7 | # (an "Authorized License"). Except as set forth in an Authorized License, Broadcom grants |
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| 8 | # no license (express or implied), right to use, or waiver of any kind with respect to the |
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| 9 | # Software, and Broadcom expressly reserves all rights in and to the Software and all |
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| 10 | # intellectual property rights therein. IF YOU HAVE NO AUTHORIZED LICENSE, THEN YOU |
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| 11 | # HAVE NO RIGHT TO USE THIS SOFTWARE IN ANY WAY, AND SHOULD IMMEDIATELY |
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| 12 | # NOTIFY BROADCOM AND DISCONTINUE ALL USE OF THE SOFTWARE. |
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| 13 | # |
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| 14 | # Except as expressly set forth in the Authorized License, |
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| 15 | # |
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| 16 | # 1. This program, including its structure, sequence and organization, constitutes the valuable trade |
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| 17 | # secrets of Broadcom, and you shall use all reasonable efforts to protect the confidentiality thereof, |
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| 18 | # and to use this information only in connection with your use of Broadcom integrated circuit products. |
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| 19 | # |
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| 20 | # 2. TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" |
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| 21 | # AND WITH ALL FAULTS AND BROADCOM MAKES NO PROMISES, REPRESENTATIONS OR |
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| 22 | # WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO |
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| 23 | # THE SOFTWARE. BROADCOM SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES |
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| 24 | # OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, |
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| 25 | # LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION |
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| 26 | # OR CORRESPONDENCE TO DESCRIPTION. YOU ASSUME THE ENTIRE RISK ARISING OUT OF |
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| 27 | # USE OR PERFORMANCE OF THE SOFTWARE. |
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| 28 | # |
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| 29 | # 3. TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL BROADCOM OR ITS |
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| 30 | # LICENSORS BE LIABLE FOR (i) CONSEQUENTIAL, INCIDENTAL, SPECIAL, INDIRECT, OR |
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| 31 | # EXEMPLARY DAMAGES WHATSOEVER ARISING OUT OF OR IN ANY WAY RELATING TO YOUR |
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| 32 | # USE OF OR INABILITY TO USE THE SOFTWARE EVEN IF BROADCOM HAS BEEN ADVISED OF |
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| 33 | # THE POSSIBILITY OF SUCH DAMAGES; OR (ii) ANY AMOUNT IN EXCESS OF THE AMOUNT |
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| 34 | # ACTUALLY PAID FOR THE SOFTWARE ITSELF OR U.S. $1, WHICHEVER IS GREATER. THESE |
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| 35 | # LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF |
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| 36 | # ANY LIMITED REMEDY. |
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| 37 | # |
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| 38 | # $brcm_Workfile: bapi_common.pm $ |
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| 39 | # $brcm_Revision: 46 $ |
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| 40 | # $brcm_Date: 12/7/11 10:41a $ |
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| 41 | # |
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| 42 | # File Description: |
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| 43 | # |
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| 44 | # Revision History: |
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| 45 | # |
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| 46 | # $brcm_Log: /nexus/build/tools/kernelproxy/bapi_common.pm $ |
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| 47 | # |
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| 48 | # 46 12/7/11 10:41a erickson |
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| 49 | # SW7420-2141: merge as much duplicated kernelmode proxy/usermode ipc |
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| 50 | # perl code as possible |
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| 51 | # |
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| 52 | # 45 11/29/11 11:31a erickson |
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| 53 | # SW7420-2129: remove null_allowed=trusted attribute |
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| 54 | # |
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| 55 | # 44 11/7/11 3:59p bandrews |
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| 56 | # SW7231-446: merge to main |
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| 57 | # |
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| 58 | # SW7231-446/2 11/4/11 9:44p bandrews |
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| 59 | # SW7231-446: fix based on review |
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| 60 | # |
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| 61 | # SW7231-446/1 11/3/11 9:27p bandrews |
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| 62 | # SW7231-446: implemented |
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| 63 | # |
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| 64 | # 43 9/13/11 1:23p erickson |
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| 65 | # SW7420-1148: change client modes to unprotected/protected/untrusted |
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| 66 | # |
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| 67 | # 42 7/29/11 12:15p erickson |
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| 68 | # SW7420-1991: reorganize to allow ipcthunk/bapi_common.pm layout to be |
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| 69 | # closer |
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| 70 | # |
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| 71 | # 41 7/28/11 3:28p erickson |
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| 72 | # SW7425-1029: fix NEXUS_CallbackDesc proxy for functions with enums, not |
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| 73 | # handles |
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| 74 | # |
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| 75 | # 40 7/26/11 12:07p erickson |
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| 76 | # SW7420-1992: callback database must take client id so that callbacks |
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| 77 | # can be disconnected when a client releases |
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| 78 | # |
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| 79 | # 39 7/26/11 9:38a erickson |
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| 80 | # SW7405-5438: fix warning |
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| 81 | # |
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| 82 | # 38 7/25/11 2:46p erickson |
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| 83 | # SW7420-1992: allow class with secondary_destructor and release, no |
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| 84 | # destructor |
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| 85 | # |
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| 86 | # 37 7/21/11 7:06p jtna |
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| 87 | # SW7405-5438: convert address to offset correctly in multi-element array |
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| 88 | # |
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| 89 | # 36 7/12/11 1:26p erickson |
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| 90 | # SW7420-1979: add support for new shutdown attribute |
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| 91 | # |
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| 92 | # 35 5/13/11 12:17p erickson |
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| 93 | # SW7420-1873: remove shutdown attribute |
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| 94 | # |
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| 95 | # 34 5/3/11 5:08p erickson |
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| 96 | # SW7420-1819: repartition so NFE is a standard feature |
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| 97 | # |
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| 98 | # 33 4/14/11 12:01p erickson |
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| 99 | # SW7420-1679: clean up NEXUS_Memory_Allocate using |
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| 100 | # attr{dealloc=NEXUS_Memory_Free} |
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| 101 | # |
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| 102 | # 32 3/17/11 11:59a erickson |
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| 103 | # SW7346-101: fix NEXUS_StopCallbacks for secondary destructors |
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| 104 | # (specifically, NEXUS_Playpump_ClosePidChannel) |
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| 105 | # |
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| 106 | # 31 3/1/11 9:31a erickson |
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| 107 | # SW7420-1123: add skip_thunk to centralize test for filenames that |
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| 108 | # should not be thunked |
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| 109 | # |
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| 110 | # 30 2/16/11 4:00p erickson |
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| 111 | # SW7420-1507: fix callback registration in Open functions |
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| 112 | # |
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| 113 | # 29 2/16/11 1:03p erickson |
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| 114 | # SW7420-1491: fix last check in. improve error checking. |
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| 115 | # |
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| 116 | # 28 2/15/11 2:16p erickson |
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| 117 | # SW7420-1491: consolidate to nelem and nelem_out |
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| 118 | # |
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| 119 | # 27 2/3/11 6:37p vsilyaev |
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| 120 | # SW7420-1441: Use local (non proxied) implementation for function that |
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| 121 | # flush CPU cache |
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| 122 | # |
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| 123 | # 26 1/28/11 9:04a erickson |
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| 124 | # SW7420-1440: refactor secondary_destructor |
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| 125 | # |
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| 126 | # 25 1/27/11 3:05p erickson |
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| 127 | # SW7208-152: fix and standardize get_destructor_hash |
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| 128 | # |
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| 129 | # 24 1/19/11 3:42p erickson |
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| 130 | # SW7420-1123: refactor kernelproxy to correspond to usermode changes |
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| 131 | # |
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| 132 | # 23 12/7/10 5:47p erickson |
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| 133 | # SW7420-1148: refactor kernel mode proxy for process isolation |
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| 134 | # |
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| 135 | # 22 10/14/10 12:34p erickson |
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| 136 | # SW7420-1148: add secondary_destructor to support |
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| 137 | # NEXUS_Playpump_ClosePidChannel, verify function attr in one place, |
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| 138 | # support multiple param verifications per ioctl |
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| 139 | # |
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| 140 | # 21 10/12/10 4:29p erickson |
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| 141 | # SW7420-1148: refactor kernel mode proxy for process isolation |
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| 142 | # |
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| 143 | # 20 6/10/10 4:56p vsilyaev |
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| 144 | # SW7405-4011: Added StopCallbacks into the driver ioctl code |
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| 145 | # |
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| 146 | # 19 3/19/10 10:07a erickson |
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| 147 | # SW7405-3832: rename variable to avoid conflict |
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| 148 | # |
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| 149 | # 18 8/4/08 4:50p vsilyaev |
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| 150 | # PR 45397: Added support to handle address remapping in variable size |
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| 151 | # structure, this fixes dma example |
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| 152 | # |
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| 153 | # 17 6/10/08 3:29p vsilyaev |
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| 154 | # PR 43184: Added support for Start/Stop callbacks in linux kernel/user |
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| 155 | # proxy mode |
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| 156 | # |
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| 157 | # 16 5/28/08 10:50a vsilyaev |
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| 158 | # PR 42158: Added hot-fix for variable size complex function arguments |
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| 159 | # |
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| 160 | # 15 2/6/08 4:50p vsilyaev |
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| 161 | # PR 38682: Fixed typo |
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| 162 | # |
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| 163 | # 14 2/6/08 4:37p vsilyaev |
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| 164 | # PR 38682: Added attributes to set array size for 'void *' type |
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| 165 | # |
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| 166 | # 13 2/4/08 4:24p vsilyaev |
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| 167 | # PR 38682: Added more tags for the linux kernel/user proxy mode |
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| 168 | # |
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| 169 | # 12 2/4/08 3:31p vsilyaev |
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| 170 | # PR 38682: Added more cases in support of variable size arrays |
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| 171 | # |
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| 172 | # 11 2/4/08 2:39p vsilyaev |
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| 173 | # PR 38682: Added support for pointers with variable size |
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| 174 | # |
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| 175 | # 10 2/1/08 5:02p vsilyaev |
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| 176 | # PR 38682: Added tracking of open/close calls |
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| 177 | # |
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| 178 | # 9 1/31/08 5:02p vsilyaev |
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| 179 | # PR 38682: Added function level attributes |
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| 180 | # |
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| 181 | # 8 1/30/08 6:18p vsilyaev |
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| 182 | # PR 38682: Added support for callbacks that are passed directly as |
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| 183 | # function arguments |
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| 184 | # |
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| 185 | # 7 1/30/08 4:28p vsilyaev |
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| 186 | # PR 38682: Improved handling of callbacks traversing user/kernel |
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| 187 | # boundary |
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| 188 | # |
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| 189 | # 6 1/30/08 11:49a vsilyaev |
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| 190 | # PR 38682: Added routing of callbacks into the user space |
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| 191 | # |
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| 192 | # 5 1/29/08 5:55p vsilyaev |
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| 193 | # PR 38682: Support of callbacks in the linux kernel/user proxy |
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| 194 | # environment |
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| 195 | # |
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| 196 | # 4 1/28/08 12:51p vsilyaev |
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| 197 | # PR 38682: Fixed redundant mapping of addreses inside structures |
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| 198 | # |
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| 199 | # 3 1/28/08 12:33p vsilyaev |
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| 200 | # PR 38682: Added support for attribute tags applied to structure |
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| 201 | # members. |
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| 202 | # |
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| 203 | # 2 1/25/08 2:35p vsilyaev |
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| 204 | # PR 38682: Added handling of 'attr' to the function arguments |
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| 205 | # |
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| 206 | # 1 1/18/08 2:15p jgarrett |
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| 207 | # PR 38808: Merging to main branch |
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| 208 | # |
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| 209 | # Nexus_Devel/2 1/18/08 1:13p vsilyaev |
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| 210 | # PR 38682: Updated nexus kernel environment |
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| 211 | # |
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| 212 | ############################################################################# |
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| 213 | use strict; |
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| 214 | use bapi_util; |
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| 215 | |
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| 216 | package bapi_common; |
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| 217 | |
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| 218 | sub version_value |
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| 219 | { |
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| 220 | my $version = shift; |
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| 221 | sprintf " 0x%08Xul ", ($version & 0xFFFFFFFF); |
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| 222 | } |
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| 223 | |
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| 224 | sub version_ioctl |
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| 225 | { |
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| 226 | my $module = shift; |
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| 227 | return "IOCTL_${module}_NEXUS_INIT"; |
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| 228 | } |
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| 229 | |
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| 230 | sub version_define |
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| 231 | { |
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| 232 | my $module = shift; |
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| 233 | return "NEXUS_${module}_MODULE_VERSION"; |
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| 234 | } |
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| 235 | |
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| 236 | sub ioctl_name |
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| 237 | { |
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| 238 | my $module = shift; |
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| 239 | my $func = shift; |
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| 240 | |
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| 241 | return "IOCTL_${module}_$func->{FUNCNAME}"; |
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| 242 | } |
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| 243 | |
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| 244 | sub ioctl_struct |
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| 245 | { |
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| 246 | my $module = shift; |
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| 247 | my $func = shift; |
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| 248 | return "${module}_$func->{FUNCNAME}_data"; |
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| 249 | } |
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| 250 | |
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| 251 | sub ioctl_header |
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| 252 | { |
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| 253 | my $module = shift; |
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| 254 | my $module_lc = lc $module; |
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| 255 | |
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| 256 | return "nexus_${module_lc}_ioctl.h"; |
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| 257 | } |
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| 258 | |
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| 259 | sub process_function_attributes { |
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| 260 | my $func = shift; |
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| 261 | my $structs = shift; |
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| 262 | my $funcs = shift; |
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| 263 | my $params = $func->{PARAMS}; |
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| 264 | my @proxy_post_success; |
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| 265 | my @proxy_pre_call; |
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| 266 | my @driver_pre_call; |
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| 267 | my @driver_post_success; |
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| 268 | my @driver_post_error; |
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| 269 | my @driver_post_always; |
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| 270 | my @proxy_vars; |
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| 271 | my @driver_ioctl_reserved; |
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| 272 | my @driver_ioctl_data; |
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| 273 | my %driver_overwrite; |
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| 274 | my ($attr,$value); |
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| 275 | my $param; |
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| 276 | my $field; |
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| 277 | my $arg_no=0; |
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| 278 | my $driver_arg = "module->args.$func->{FUNCNAME}"; |
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| 279 | |
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| 280 | if(exists $func->{ATTR}) { |
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| 281 | while (($attr, $value) = each %{$func->{ATTR}} ) { |
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| 282 | next if($attr eq 'destructor'); |
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| 283 | next if($attr eq 'secondary_destructor'); |
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| 284 | next if($attr eq 'release'); |
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| 285 | next if($attr eq 'local'); |
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| 286 | next if($attr eq 'dealloc'); |
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| 287 | next if($attr eq 'shutdown'); |
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| 288 | if($attr eq 'chain') { |
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| 289 | my @args; |
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| 290 | for $param (@$params) { |
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| 291 | push @args, $param->{NAME}; |
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| 292 | } |
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| 293 | push @proxy_post_success, "/* call local proxy function */"; |
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| 294 | push @proxy_post_success, ($value . " ( " . (join( ' , ', @args)) . ' );'); |
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| 295 | |
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| 296 | @args=(); |
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| 297 | for $param (@$params) { |
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| 298 | push @args, "$driver_arg.ioctl." . $param->{NAME}; |
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| 299 | } |
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| 300 | push @driver_post_success, "/* call local driver function */"; |
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| 301 | push @driver_post_success, ($value . " ( " . (join( ' , ', @args)) . ' );'); |
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| 302 | next; |
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| 303 | } |
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| 304 | print STDERR "ERROR: Unsupported attribute $attr = $value for $func->{FUNCNAME}\n"; |
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| 305 | } |
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| 306 | } |
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| 307 | |
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| 308 | for $param (@$params) { |
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| 309 | my $name = $param->{NAME}; |
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| 310 | my $name_copy = "$name\_copy"; |
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| 311 | $arg_no ++; |
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| 312 | |
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| 313 | if (!exists $param->{ATTR}->{'nelem'} && |
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| 314 | !exists $param->{ATTR}->{'fixed_length'}) |
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| 315 | { |
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| 316 | # ordinary params |
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| 317 | if ($param->{ISREF} && $param->{BASETYPE} ne 'void') { |
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| 318 | if ($param->{INPARAM}) { |
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| 319 | push @driver_pre_call, "if ($driver_arg.ioctl.$param->{NAME}) {"; |
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| 320 | push @driver_pre_call, " if (copy_from_user_small(&$driver_arg.$name, $driver_arg.ioctl.$name, sizeof($driver_arg.$name))!=0) {BERR_TRACE(-1);goto err_fault;}"; |
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| 321 | push @driver_pre_call, "}"; |
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| 322 | my $null_allowed = $param->{ATTR}->{'null_allowed'}; |
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| 323 | if (!defined $null_allowed) { |
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| 324 | push @driver_pre_call, "else {"; |
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| 325 | push @driver_pre_call, " BDBG_ERR((\"NULL not allowed for $name param in $func->{FUNCNAME}: %d\", __LINE__));"; |
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| 326 | push @driver_pre_call, " goto err_fault;"; |
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| 327 | push @driver_pre_call, "}"; |
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| 328 | } |
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| 329 | } |
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| 330 | else { |
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| 331 | push @driver_pre_call, "NEXUS_IOCTL_CLEAR($driver_arg.ioctl.$name);"; |
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| 332 | } |
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| 333 | } |
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| 334 | } |
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| 335 | |
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| 336 | # must exchange eInvalid and NULL for protected clients for Timebase and ParserBand as direct params |
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| 337 | # this code only handles output param conversion post call |
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| 338 | # pre-call, post-verification NULL->eInvalid input conversion is done in bapi_driver_ioctl.pm |
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| 339 | if ($param->{ISREF}) |
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| 340 | { |
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| 341 | if ($param->{BASETYPE} eq 'NEXUS_Timebase' || $param->{BASETYPE} eq 'NEXUS_ParserBand') |
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| 342 | { |
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| 343 | if (!$param->{INPARAM}) |
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| 344 | { |
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| 345 | push @driver_post_success, "if (nexus_driver_client_id(context)->config.mode != NEXUS_ClientMode_eUnprotected) {"; |
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| 346 | push @driver_post_success, " if ($driver_arg.ioctl.$name != NULL) {"; # check pointer |
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| 347 | push @driver_post_success, " if (*$driver_arg.ioctl.$name == $param->{TYPE}_eInvalid) {"; # check pointed to value |
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| 348 | push @driver_post_success, " *$driver_arg.ioctl.$name = ($param->{TYPE})NULL;"; |
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| 349 | push @driver_post_success, " }"; |
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| 350 | push @driver_post_success, " }"; |
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| 351 | push @driver_post_success, "}"; |
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| 352 | } |
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| 353 | } |
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| 354 | } |
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| 355 | |
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| 356 | if($param->{BASETYPE} eq 'NEXUS_CallbackDesc') { |
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| 357 | if ($param->{INPARAM}) { |
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| 358 | my $handle = "$driver_arg.ioctl.$$params[0]->{NAME}"; |
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| 359 | my $id = sprintf("0x%05x", ((bapi_util::func_id $funcs, $func)*256 + $arg_no + 0x10000)); |
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| 360 | my $notnull_test = "$driver_arg.ioctl.$name != NULL"; |
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| 361 | push @driver_pre_call, "if($notnull_test) {"; |
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| 362 | push @driver_pre_call, " /* MAP callback from proxy space to the driver space */"; |
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| 363 | push @driver_pre_call, " NEXUS_DRIVER_CALLBACK_TO_DRIVER(&$driver_arg.$name, $handle, $id);"; |
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| 364 | push @driver_pre_call, "}"; |
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| 365 | push @driver_post_success, "if($notnull_test) {"; |
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| 366 | push @driver_post_success, " /* after function succeded, commit changes */"; |
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| 367 | push @driver_post_success, " NEXUS_DRIVER_CALLBACK_TO_DRIVER_COMMIT(&$driver_arg.$name, $handle, $id);"; |
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| 368 | push @driver_post_success, "}"; |
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| 369 | push @driver_post_error, "if($notnull_test) {"; |
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| 370 | push @driver_post_error, " /* if error occured, then cancel changes in the callback mapping */"; |
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| 371 | push @driver_post_error, " NEXUS_DRIVER_CALLBACK_TO_DRIVER_CANCEL(&$driver_arg.$name, $handle, $id);"; |
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| 372 | push @driver_post_error, "}"; |
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| 373 | } else { |
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| 374 | print STDERR "ERROR: pointer to NEXUS_CallbackDesc could be only input parameter\n"; |
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| 375 | } |
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| 376 | } |
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| 377 | |
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| 378 | if (exists $structs->{$param->{BASETYPE}}) { |
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| 379 | my $field_no = 0; |
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| 380 | my @pre_update_proxy; |
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| 381 | my @pre_update_driver; |
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| 382 | my @post_update_proxy; |
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| 383 | my @post_update_driver; |
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| 384 | my @post_error_driver; |
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| 385 | |
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| 386 | # bapi_parse_c::print_struct $structs->{$param->{BASETYPE}} |
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| 387 | for $field (@{$structs->{$param->{BASETYPE}}}) { |
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| 388 | my $field_driver = "$driver_arg.$name.$field->{NAME}"; |
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| 389 | |
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| 390 | $field_no ++; |
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| 391 | if($field->{TYPE} eq 'NEXUS_CallbackDesc') { |
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| 392 | my $id = sprintf("0x%04x", ((bapi_util::struct_id $structs, $param->{BASETYPE})*256 + $field_no)); |
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| 393 | my $handle; |
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| 394 | if ($func->{RETTYPE_ISHANDLE}) { |
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| 395 | $handle = 'NULL'; # update after success |
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| 396 | } |
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| 397 | elsif ($$params[0]->{ISHANDLE}) { |
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| 398 | $handle = "$driver_arg.ioctl.$$params[0]->{NAME}"; |
|---|
| 399 | } |
|---|
| 400 | elsif (!$$params[0]->{ISREF} && $param != $$params[0]) { |
|---|
| 401 | # enum instead of handle. |
|---|
| 402 | # use enum type + enum value as psuedo handle |
|---|
| 403 | # hardcoded for a max of 128 enum values per type |
|---|
| 404 | # value<<2+1 to use non-4 byte aligned value to ensure no conflict with actual handle |
|---|
| 405 | $handle = "(($id<<9) + ($driver_arg.ioctl.$$params[0]->{NAME}<<2) + 1)"; |
|---|
| 406 | } |
|---|
| 407 | if (defined $handle && $param->{ISREF}) { |
|---|
| 408 | if ($param->{INPARAM}) { |
|---|
| 409 | push @pre_update_driver, "/* MAP callback from proxy space to the driver space */"; |
|---|
| 410 | push @pre_update_driver, "NEXUS_DRIVER_CALLBACK_TO_DRIVER(&$field_driver, $handle, $id);"; |
|---|
| 411 | if($handle eq 'NULL') { |
|---|
| 412 | push @post_update_driver, "/* since callback wasn't avaliable before calling function, use the return result to update callback */"; |
|---|
| 413 | push @post_update_driver, "NEXUS_DRIVER_CALLBACK_UPDATE(&$field_driver, $handle, $id, $driver_arg.ioctl.__retval);"; |
|---|
| 414 | } else { |
|---|
| 415 | push @post_update_driver, "/* after function succeded, commit changes */"; |
|---|
| 416 | push @post_update_driver, "NEXUS_DRIVER_CALLBACK_TO_DRIVER_COMMIT(&$field_driver, $handle, $id);"; |
|---|
| 417 | } |
|---|
| 418 | push @post_error_driver, "/* if error occured, then cancel changes in the callback mapping */"; |
|---|
| 419 | push @post_error_driver, "NEXUS_DRIVER_CALLBACK_TO_DRIVER_CANCEL(&$field_driver, $handle, $id);"; |
|---|
| 420 | } else { |
|---|
| 421 | push @post_update_driver, "/* MAP callback from the driver space to proxy space */"; |
|---|
| 422 | push @post_update_driver, "NEXUS_DRIVER_CALLBACK_TO_USER(&$field_driver, $handle, $id);"; |
|---|
| 423 | } |
|---|
| 424 | } |
|---|
| 425 | } |
|---|
| 426 | # must change eInvalid back to NULL for protected clients for Timebase and ParserBand as struct members |
|---|
| 427 | # this code only handles output param conversion post call |
|---|
| 428 | # pre-call, post-verification NULL->eInvalid input conversion is done in bapi_driver_ioctl.pm |
|---|
| 429 | # TODO: is field as pointer supported? |
|---|
| 430 | elsif ($field->{TYPE} eq 'NEXUS_Timebase' || $field->{TYPE} eq 'NEXUS_ParserBand') |
|---|
| 431 | { |
|---|
| 432 | if (!$param->{INPARAM}) |
|---|
| 433 | { |
|---|
| 434 | push @driver_post_success, "if (nexus_driver_client_id(context)->config.mode != NEXUS_ClientMode_eUnprotected) {"; |
|---|
| 435 | push @driver_post_success, " if ($field_driver == $field->{TYPE}_eInvalid) {"; |
|---|
| 436 | push @driver_post_success, " $field_driver = ($field->{TYPE})NULL;"; |
|---|
| 437 | push @driver_post_success, " }"; |
|---|
| 438 | push @driver_post_success, "}"; |
|---|
| 439 | } |
|---|
| 440 | } |
|---|
| 441 | |
|---|
| 442 | if (exists $field->{ATTR}) { |
|---|
| 443 | # print " $func->{FUNCNAME} :"; |
|---|
| 444 | # print " field: $field->{TYPE} $field->{NAME} -> "; |
|---|
| 445 | # bapi_parse_c::print_attr $field->{ATTR}; |
|---|
| 446 | while (($attr, $value) = each %{$field->{ATTR}} ) { |
|---|
| 447 | my $field_proxy = "$name->$field->{NAME}"; |
|---|
| 448 | my $field_copy = "$name_copy.$field->{NAME}"; |
|---|
| 449 | if($attr eq 'memory') { |
|---|
| 450 | if($value eq 'cached') { |
|---|
| 451 | if ($param->{ISREF}) { |
|---|
| 452 | if ($param->{INPARAM}) { |
|---|
| 453 | next if (exists $param->{ATTR}->{'nelem'}); |
|---|
| 454 | push @pre_update_proxy, "/* convert address to the device offset */"; |
|---|
| 455 | push @pre_update_proxy, "$field_copy = $field_copy ? (void *) NEXUS_AddrToOffset($field_copy) : $field_copy;"; |
|---|
| 456 | |
|---|
| 457 | push @pre_update_driver, "/* convert offset (substituted by the proxy ) to the cached address */"; |
|---|
| 458 | push @pre_update_driver, "NEXUS_DRIVER_RECV_ADDR($field_driver,cached);"; |
|---|
| 459 | next; |
|---|
| 460 | } else { |
|---|
| 461 | push @post_update_proxy, "/* convert offset (substituted by the driver) to the cached address */"; |
|---|
| 462 | push @post_update_proxy, "$field_proxy = $field_proxy ? NEXUS_OffsetToCachedAddr((uint32_t)$field_proxy) : $field_proxy ;"; |
|---|
| 463 | |
|---|
| 464 | push @post_update_driver, "/* convert offset (substituted by the proxy) to the cached address */"; |
|---|
| 465 | push @post_update_driver, "NEXUS_DRIVER_SEND_ADDR($field_driver,cached);"; |
|---|
| 466 | next; |
|---|
| 467 | } |
|---|
| 468 | } |
|---|
| 469 | } |
|---|
| 470 | } |
|---|
| 471 | print STDERR "ERROR: Unsupported attribute $attr = $value for $field->{NAME} in $param->{BASETYPE}\n"; |
|---|
| 472 | } |
|---|
| 473 | } |
|---|
| 474 | } |
|---|
| 475 | if(scalar @pre_update_proxy) { |
|---|
| 476 | push @proxy_vars, "$param->{BASETYPE} $name_copy; /* placeholder for modified parameters */ "; |
|---|
| 477 | push @proxy_vars, "const $param->{BASETYPE} *$name\_old; /* copy of old pointer */ "; |
|---|
| 478 | push @proxy_pre_call, "BSTD_UNUSED($name\_old);\n"; |
|---|
| 479 | push @proxy_pre_call, "if($name) {"; |
|---|
| 480 | push @proxy_pre_call, " /* replace the original pointer with local copy */"; |
|---|
| 481 | push @proxy_pre_call, " $name\_old=$name;$name\_copy=*$name;$name=&$name\_copy;"; |
|---|
| 482 | push @proxy_pre_call, " /* update values ... */"; |
|---|
| 483 | bapi_util::append_code \@proxy_pre_call, \@pre_update_proxy, " "; |
|---|
| 484 | push @proxy_pre_call, "}"; |
|---|
| 485 | } |
|---|
| 486 | bapi_util::append_if \@driver_pre_call, "$driver_arg.ioctl.$name", \@pre_update_driver; |
|---|
| 487 | bapi_util::append_if \@driver_post_error, "$driver_arg.ioctl.$name", \@post_error_driver; |
|---|
| 488 | bapi_util::append_if \@driver_post_success, "$driver_arg.ioctl.$name", \@post_update_driver; |
|---|
| 489 | bapi_util::append_if \@proxy_post_success , "$name", \@post_update_proxy; |
|---|
| 490 | } |
|---|
| 491 | if(exists $param->{ATTR}) { |
|---|
| 492 | while (($attr, $value) = each %{$param->{ATTR}} ) { |
|---|
| 493 | if($attr eq 'nelem_convert' || $attr eq 'nelem_out') { |
|---|
| 494 | if( !exists $param->{ATTR}->{'nelem'}) { |
|---|
| 495 | print STDERR "ERROR: $attr requires nelem: $func->{FUNCNAME}\n"; |
|---|
| 496 | } |
|---|
| 497 | next; # handled with nelem |
|---|
| 498 | } |
|---|
| 499 | next if($attr eq 'dealloc'); # skip here |
|---|
| 500 | next if($attr eq 'null_allowed'); # skip here |
|---|
| 501 | |
|---|
| 502 | if($attr eq 'reserved') { |
|---|
| 503 | if($param->{BASETYPE} ne 'void') { |
|---|
| 504 | push @driver_ioctl_reserved, "$param->{BASETYPE} $name\[$value];"; |
|---|
| 505 | } else { |
|---|
| 506 | push @driver_ioctl_reserved, "uint8_t $name\[$value];"; |
|---|
| 507 | } |
|---|
| 508 | } |
|---|
| 509 | elsif($attr eq 'fixed_length' && $param->{ISREF}) { |
|---|
| 510 | my $length = $value; |
|---|
| 511 | push @driver_ioctl_reserved, "uint8_t $name\[$value];"; |
|---|
| 512 | push @driver_ioctl_data, "void * $name;"; |
|---|
| 513 | push @driver_pre_call, "$driver_arg.$name=$driver_arg.ioctl.$name?$driver_arg.reserved.$name:NULL;"; |
|---|
| 514 | if($param->{INPARAM}) { |
|---|
| 515 | push @driver_pre_call, "if (copy_from_user_small($driver_arg.$name, $driver_arg.ioctl.$name, $value) !=0) {NEXUS_IOCTL_FAULT($func->{FUNCNAME}, $name);goto err_fault;}"; |
|---|
| 516 | } else { |
|---|
| 517 | push @driver_post_success, "if ($driver_arg.ioctl.$name!=NULL && copy_to_user_small($driver_arg.ioctl.$name, $driver_arg.$name, $value) !=0) {NEXUS_IOCTL_FAULT($func->{FUNCNAME}, $name);goto err_fault;}"; |
|---|
| 518 | } |
|---|
| 519 | $driver_overwrite{$name} = 1; |
|---|
| 520 | } |
|---|
| 521 | elsif($attr eq 'nelem' && $param->{ISREF}) { |
|---|
| 522 | my $length = "$driver_arg.ioctl.$value"; |
|---|
| 523 | my $scale = ""; |
|---|
| 524 | if( exists $param->{ATTR}->{'nelem_convert'}) { |
|---|
| 525 | $length = $param->{ATTR}->{'nelem_convert'} . "($length)"; |
|---|
| 526 | } |
|---|
| 527 | if($param->{BASETYPE} ne 'void') { |
|---|
| 528 | push @driver_ioctl_data, "$param->{BASETYPE} * $name;"; |
|---|
| 529 | $scale = "sizeof(*$driver_arg.ioctl.$name) *"; |
|---|
| 530 | } else { |
|---|
| 531 | push @driver_ioctl_data, "void * $name;"; |
|---|
| 532 | } |
|---|
| 533 | $length = "($scale $length)"; |
|---|
| 534 | push @driver_pre_call, "if($driver_arg.ioctl.$name!=NULL) {"; |
|---|
| 535 | push @driver_pre_call, " /* allocate space for the $name */"; |
|---|
| 536 | push @driver_post_always, "/* free space allocated for $name */"; |
|---|
| 537 | if( exists $param->{ATTR}->{'reserved'}) { |
|---|
| 538 | push @driver_pre_call, " if( $length <= $scale $param->{ATTR}->{'reserved'} ) {"; |
|---|
| 539 | push @driver_pre_call, " $driver_arg.$name = $driver_arg.reserved.$name;"; |
|---|
| 540 | push @driver_pre_call, " } else {"; |
|---|
| 541 | push @driver_pre_call, " $driver_arg.$name = NEXUS_DRIVER_ALLOC($length);"; |
|---|
| 542 | push @driver_pre_call, " if($driver_arg.$name == NULL) {goto err_alloc;}"; |
|---|
| 543 | push @driver_pre_call, " }"; |
|---|
| 544 | |
|---|
| 545 | push @driver_post_always, "if($driver_arg.$name != $driver_arg.reserved.$name) {"; |
|---|
| 546 | push @driver_post_always, " NEXUS_DRIVER_FREE($driver_arg.$name);"; |
|---|
| 547 | push @driver_post_always, "}"; |
|---|
| 548 | |
|---|
| 549 | } else { |
|---|
| 550 | push @driver_pre_call, " $driver_arg.$name = NEXUS_DRIVER_ALLOC($length);"; |
|---|
| 551 | push @driver_post_always, "NEXUS_DRIVER_FREE($driver_arg.$name);"; |
|---|
| 552 | } |
|---|
| 553 | if($param->{INPARAM}) { |
|---|
| 554 | push @driver_pre_call, " if (copy_from_user_small($driver_arg.$name, $driver_arg.ioctl.$name, $length) !=0) {NEXUS_IOCTL_FAULT($func->{FUNCNAME}, $name);goto err_fault;}"; |
|---|
| 555 | # Handle address translation |
|---|
| 556 | my @driver_update_structure; |
|---|
| 557 | my @proxy_update_structure; |
|---|
| 558 | if (exists $structs->{$param->{BASETYPE}}) { |
|---|
| 559 | my $field; |
|---|
| 560 | for $field (@{$structs->{$param->{BASETYPE}}}) { |
|---|
| 561 | if (exists $field->{ATTR}) { |
|---|
| 562 | my ($attr,$value); |
|---|
| 563 | while (($attr, $value) = each %{$field->{ATTR}} ) { |
|---|
| 564 | if($attr eq 'memory' && $value eq 'cached' && $param->{ISREF} && $param->{INPARAM}) { |
|---|
| 565 | my $field_copy = "$name_copy->$field->{NAME}"; |
|---|
| 566 | |
|---|
| 567 | push @proxy_update_structure, "/* convert address to the device offset */"; |
|---|
| 568 | push @proxy_update_structure, "$field_copy = $field_copy ? (void *) NEXUS_AddrToOffset($field_copy) : $field_copy;"; |
|---|
| 569 | |
|---|
| 570 | push @driver_update_structure, "/* convert offset (substituted by the proxy) to the cached address */"; |
|---|
| 571 | push @driver_update_structure, "NEXUS_DRIVER_RECV_ADDR($driver_arg.$name [i].$field->{NAME},cached);"; |
|---|
| 572 | next; |
|---|
| 573 | } |
|---|
| 574 | print STDERR "ERROR: Unsupported attribute $attr = $value for $field->{NAME} in $param->{BASETYPE}\n"; |
|---|
| 575 | } |
|---|
| 576 | } |
|---|
| 577 | } |
|---|
| 578 | } |
|---|
| 579 | if (scalar @driver_update_structure) { |
|---|
| 580 | push @driver_pre_call, " {unsigned i;for(i=0;i<$driver_arg.ioctl.$value;i++) {"; |
|---|
| 581 | bapi_util::append_code \@driver_pre_call, \@driver_update_structure, " "; |
|---|
| 582 | push @driver_pre_call, " }}"; |
|---|
| 583 | } |
|---|
| 584 | if (scalar @proxy_update_structure) { |
|---|
| 585 | # Approximate handling |
|---|
| 586 | push @proxy_pre_call, " unsigned i;"; |
|---|
| 587 | push @proxy_pre_call, " $param->{BASETYPE} * $name_copy = __builtin_alloca(sizeof($param->{BASETYPE}) * $value);"; |
|---|
| 588 | push @proxy_pre_call, " if($name!=NULL) {"; |
|---|
| 589 | push @proxy_pre_call, " void *_save_data = $name_copy;"; |
|---|
| 590 | push @proxy_pre_call, " BKNI_Memcpy($name_copy, $name, sizeof($param->{BASETYPE}) * $value);"; |
|---|
| 591 | push @proxy_pre_call, " for(i=0;i<$value;i++) {"; |
|---|
| 592 | bapi_util::append_code \@proxy_pre_call, \@proxy_update_structure, " "; |
|---|
| 593 | push @proxy_pre_call, " $name_copy++;"; |
|---|
| 594 | push @proxy_pre_call, " }"; |
|---|
| 595 | push @proxy_pre_call, " $name = _save_data;"; |
|---|
| 596 | push @proxy_pre_call, " }"; |
|---|
| 597 | } |
|---|
| 598 | } |
|---|
| 599 | else { |
|---|
| 600 | my $length_out = $length; |
|---|
| 601 | |
|---|
| 602 | # nelem_out is an optimization for out params. only copy the data actually populated. |
|---|
| 603 | if( exists $param->{ATTR}->{'nelem_out'}) { |
|---|
| 604 | $length_out = "$driver_arg.$param->{ATTR}->{'nelem_out'}"; |
|---|
| 605 | if( exists $param->{ATTR}->{'nelem_convert'}) { |
|---|
| 606 | $length_out = $param->{ATTR}->{'nelem_convert'} . "($length_out)"; |
|---|
| 607 | } |
|---|
| 608 | $length_out = "($length_out * sizeof(*$driver_arg.ioctl.$name))"; |
|---|
| 609 | } |
|---|
| 610 | push @driver_post_success, "if ($driver_arg.ioctl.$name!=NULL && copy_to_user_small($driver_arg.ioctl.$name, $driver_arg.$name, $length_out ) !=0) {NEXUS_IOCTL_FAULT($func->{FUNCNAME}, $name);goto err_fault;}"; |
|---|
| 611 | } |
|---|
| 612 | push @driver_pre_call, "} else {"; |
|---|
| 613 | push @driver_pre_call, " $driver_arg.$name = NULL;"; |
|---|
| 614 | push @driver_pre_call, "}"; |
|---|
| 615 | $driver_overwrite{$name} = 1; |
|---|
| 616 | } |
|---|
| 617 | elsif($attr eq 'memory' && $value eq 'cached') { |
|---|
| 618 | if ($param->{INPARAM}) { |
|---|
| 619 | push @proxy_pre_call, "/* convert offset (substituted by the driver) to the cached address */"; |
|---|
| 620 | push @proxy_pre_call, "$name = $name ? (void *)NEXUS_AddrToOffset($name) : $name;"; |
|---|
| 621 | push @driver_pre_call, "/* convert address to the device offset */"; |
|---|
| 622 | push @driver_pre_call, "NEXUS_DRIVER_RECV_ADDR($driver_arg.ioctl.$name, cached);"; |
|---|
| 623 | } |
|---|
| 624 | else { |
|---|
| 625 | # handle return value. if client passes NULL outparam, only the client crashes |
|---|
| 626 | push @proxy_post_success, "/* convert offset (substituted by the driver) to the cached address */"; |
|---|
| 627 | push @proxy_post_success, "*$name = *$name ? NEXUS_OffsetToCachedAddr((uint32_t)*$name) : *$name;"; |
|---|
| 628 | push @driver_post_success, "/* convert address to the device offset */"; |
|---|
| 629 | push @driver_post_success, "NEXUS_DRIVER_SEND_ADDR($driver_arg.$name, cached);"; |
|---|
| 630 | } |
|---|
| 631 | } |
|---|
| 632 | else { |
|---|
| 633 | print STDERR "ERROR: Unsupported attribute $attr = $value for $param->{NAME} in $func->{FUNCNAME}\n"; |
|---|
| 634 | } |
|---|
| 635 | } |
|---|
| 636 | } |
|---|
| 637 | } |
|---|
| 638 | |
|---|
| 639 | my %result; |
|---|
| 640 | if (scalar @proxy_post_success) { |
|---|
| 641 | $result{'proxy_post_success'} = \@proxy_post_success; |
|---|
| 642 | } |
|---|
| 643 | if (scalar @driver_post_success) { |
|---|
| 644 | $result{'driver_post_success'} = \@driver_post_success; |
|---|
| 645 | } |
|---|
| 646 | if (scalar @proxy_pre_call) { |
|---|
| 647 | $result{'proxy_pre_call'} = \@proxy_pre_call; |
|---|
| 648 | } |
|---|
| 649 | if (scalar @driver_pre_call) { |
|---|
| 650 | $result{'driver_pre_call'} = \@driver_pre_call; |
|---|
| 651 | } |
|---|
| 652 | if (scalar @proxy_vars) { |
|---|
| 653 | $result{'proxy_vars'} = \@proxy_vars; |
|---|
| 654 | } |
|---|
| 655 | if (scalar @driver_post_error) { |
|---|
| 656 | $result{'driver_post_error'} = \@driver_post_error; |
|---|
| 657 | } |
|---|
| 658 | if (scalar @driver_post_always) { |
|---|
| 659 | $result{'driver_post_always'} = \@driver_post_always; |
|---|
| 660 | } |
|---|
| 661 | |
|---|
| 662 | if(scalar @driver_ioctl_reserved) { |
|---|
| 663 | push @driver_ioctl_data, "struct {"; |
|---|
| 664 | bapi_util::append_code \@driver_ioctl_data, \@driver_ioctl_reserved, " "; |
|---|
| 665 | push @driver_ioctl_data, "} reserved;"; |
|---|
| 666 | } |
|---|
| 667 | if(scalar @driver_ioctl_data) { |
|---|
| 668 | $result{'driver_ioctl_data'} = \@driver_ioctl_data; |
|---|
| 669 | } |
|---|
| 670 | $result{'driver_overwrite'} = \%driver_overwrite; |
|---|
| 671 | return \%result; |
|---|
| 672 | } |
|---|
| 673 | |
|---|
| 674 | |
|---|
| 675 | 1; |
|---|
| 676 | |
|---|