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Diffstat (limited to 'branches/1.0/tinySIGCOMP/src/tcomp_udvm.nack.c')
| -rw-r--r-- | branches/1.0/tinySIGCOMP/src/tcomp_udvm.nack.c | 112 |
1 files changed, 0 insertions, 112 deletions
diff --git a/branches/1.0/tinySIGCOMP/src/tcomp_udvm.nack.c b/branches/1.0/tinySIGCOMP/src/tcomp_udvm.nack.c deleted file mode 100644 index f422076..0000000 --- a/branches/1.0/tinySIGCOMP/src/tcomp_udvm.nack.c +++ /dev/null @@ -1,112 +0,0 @@ -/* -* Copyright (C) 2009-2010 Mamadou Diop. -* -* Contact: Mamadou Diop <diopmamadou(at)doubango.org> -* -* This file is part of Open Source Doubango Framework. -* -* DOUBANGO is free software: you can redistribute it and/or modify -* it under the terms of the GNU General Public License as published by -* the Free Software Foundation, either version 3 of the License, or -* (at your option) any later version. -* -* DOUBANGO is distributed in the hope that it will be useful, -* but WITHOUT ANY WARRANTY; without even the implied warranty of -* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -* GNU General Public License for more details. -* -* You should have received a copy of the GNU General Public License -* along with DOUBANGO. -* -*/ - -/**@file tcomp_udvm.nack.c - * @brief SigComp UDVM machine (NACK). - * - * @author Mamadou Diop <diopmamadou(at)yahoo.fr> - * - * @date Created: Sat Nov 8 16:54:58 2009 mdiop - */ -#include "tcomp_udvm.h" - -#include "tsk_sha1.h" - -void tcomp_udvm_createNackInfo(tcomp_udvm_t *udvm, uint8_t reasonCode, tcomp_buffer_handle_t* lpDetails, int16_t memory_address_of_instruction) -{ -#define NACK_HEADER_INDEX 0 -#define NACK_VERSION_INDEX (NACK_HEADER_INDEX+2) -#define NACK_REASON_CODE_INDEX (NACK_VERSION_INDEX+1) -#define NACK_OPCODE_INDEX (NACK_REASON_CODE_INDEX+1) -#define NACK_PC_INDEX (NACK_OPCODE_INDEX+1) -#define NACK_SHA1_INDEX (NACK_PC_INDEX+2) -#define NACK_DETAILS_INDEX (NACK_PC_INDEX+SHA1HashSize) - /* 0 1 2 3 4 5 6 7 - +---+---+---+---+---+---+---+---+ - | 1 1 1 1 1 | T | 0 | - +---+---+---+---+---+---+---+---+ - | | - : returned feedback item : - | | - +---+---+---+---+---+---+---+---+ - | code_len = 0 | - +---+---+---+---+---+---+---+---+ - | code_len = 0 | version = 1 | - +---+---+---+---+---+---+---+---+ - | Reason Code | - +---+---+---+---+---+---+---+---+ - | OPCODE of failed instruction | - +---+---+---+---+---+---+---+---+ - | PC of failed instruction | - | | - +---+---+---+---+---+---+---+---+ - | | - : SHA-1 Hash of failed message : - | | - +---+---+---+---+---+---+---+---+ - | | - : Error Details : - | | - +---+---+---+---+---+---+---+---+ - */ - - uint16_t mem_add_instruction = (memory_address_of_instruction >=0) ? memory_address_of_instruction : udvm->last_memory_address_of_instruction; - tsk_sha1context_t sha; - uint8_t *nackbuffer_ptr; - - tcomp_buffer_allocBuff(udvm->lpResult->nack_info, NACK_SHA1_INDEX + TSK_SHA1_DIGEST_SIZE); - nackbuffer_ptr = tcomp_buffer_getBuffer(udvm->lpResult->nack_info); - - nackbuffer_ptr[NACK_HEADER_INDEX] = 0xf8; - nackbuffer_ptr[NACK_VERSION_INDEX] = NACK_VERSION; - nackbuffer_ptr[NACK_REASON_CODE_INDEX] = reasonCode; - nackbuffer_ptr[NACK_OPCODE_INDEX] = *TCOMP_UDVM_GET_BUFFER_AT(mem_add_instruction); - nackbuffer_ptr[NACK_PC_INDEX] = (mem_add_instruction >> 8); - nackbuffer_ptr[NACK_PC_INDEX+1] = (mem_add_instruction & 0x00ff); - - /* - * SHA-1 computation - */ - tsk_sha1reset(&sha); - tsk_sha1input(&sha, udvm->sigCompMessage->startPtr, udvm->sigCompMessage->totalSize); - tsk_sha1result(&sha, (char*)(nackbuffer_ptr + NACK_SHA1_INDEX)); - - /* - * Details - */ - if(lpDetails && tcomp_buffer_getSize(lpDetails)) - { - tcomp_buffer_appendBuff(udvm->lpResult->nack_info, tcomp_buffer_getBuffer(lpDetails), tcomp_buffer_getSize(lpDetails)); - } - else if(reasonCode == NACK_BYTECODES_TOO_LARGE) - { - uint16_t memorySize = TCOMP_UDVM_GET_SIZE(); - tcomp_buffer_appendBuff(udvm->lpResult->nack_info, &memorySize, 2); - } - else if(reasonCode == NACK_CYCLES_EXHAUSTED) - { - uint8_t cpb = udvm->stateHandler->sigcomp_parameters->cpbValue; - tcomp_buffer_appendBuff(udvm->lpResult->nack_info, &cpb, 1); - } - - udvm->lpResult->isNack = 1; -} |
