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| Source at commit 1129 created 12 years 11 months ago. By meklort, Change options.o so that it reloads the system config as well. Also change it so that it uses that config for variables (NOTE: if the calue exists in chameleonConfig, it's used instead. | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 2011 Evan Lojewski. All rights reserved.␊ |
| 3 | *␊ |
| 4 | */␊ |
| 5 | #include <GUIDPartition.hpp>␊ |
| 6 | ␊ |
| 7 | ␊ |
| 8 | GUIDPartition::GUIDPartition(Disk* disk, UInt8 partitionNumber) : Partition(disk, partitionNumber)␊ |
| 9 | {␊ |
| 10 | mDisk = disk;␊ |
| 11 | mNumSectors = 0;␊ |
| 12 | mBeginSector = 0;␊ |
| 13 | mPartitionNumber = partitionNumber;␊ |
| 14 | mNumPartitions = 0;␊ |
| 15 | ␊ |
| 16 | if(mDisk)␊ |
| 17 | {␊ |
| 18 | // read in lba1, this contains the partition map if it's GPT␊ |
| 19 | mDisk->Read(1, 1, mLBABUffer);␊ |
| 20 | mGPTHeader = (gpt_hdr*)mLBABUffer;␊ |
| 21 | }␊ |
| 22 | else␊ |
| 23 | {␊ |
| 24 | mGPTHeader = NULL;␊ |
| 25 | }␊ |
| 26 | ␊ |
| 27 | if(isGPTDisk())␊ |
| 28 | {␊ |
| 29 | mNumPartitions = mGPTHeader->hdr_entries;␊ |
| 30 | }␊ |
| 31 | ␊ |
| 32 | mGPTHeader = NULL;␊ |
| 33 | ␊ |
| 34 | if(mPartitionNumber >= 0 && mPartitionNumber < mNumPartitions)␊ |
| 35 | {␊ |
| 36 | // read in partition entry.␊ |
| 37 | mDisk->Read(2 + mPartitionNumber, 1, mLBABUffer);␊ |
| 38 | ␊ |
| 39 | mGPTEntry = (gpt_ent*) mLBABUffer;␊ |
| 40 | ␊ |
| 41 | mNumSectors = mGPTEntry->ent_lba_end - mGPTEntry->ent_lba_start;␊ |
| 42 | mBeginSector = mGPTEntry->ent_lba_start;␊ |
| 43 | //mUUID = mGPTEntry->ent_uuid;␊ |
| 44 | }␊ |
| 45 | }␊ |
| 46 | ␊ |
| 47 | GUIDPartition::~GUIDPartition()␊ |
| 48 | {␊ |
| 49 | ␊ |
| 50 | }␊ |
| 51 | ␊ |
| 52 | ␊ |
| 53 | bool GUIDPartition::isGPTDisk()␊ |
| 54 | {␊ |
| 55 | static bool status = false;␊ |
| 56 | ␊ |
| 57 | if(status) return status;␊ |
| 58 | ␊ |
| 59 | if(!mGPTHeader) return false;␊ |
| 60 | ␊ |
| 61 | if(mGPTHeader->hdr_sig[0] == 'E' &&␊ |
| 62 | mGPTHeader->hdr_sig[1] == 'F' &&␊ |
| 63 | mGPTHeader->hdr_sig[2] == 'I' &&␊ |
| 64 | mGPTHeader->hdr_sig[3] == ' ' &&␊ |
| 65 | mGPTHeader->hdr_sig[4] == 'P' &&␊ |
| 66 | mGPTHeader->hdr_sig[5] == 'A' &&␊ |
| 67 | mGPTHeader->hdr_sig[6] == 'R' &&␊ |
| 68 | mGPTHeader->hdr_sig[7] == 'T') return true;␊ |
| 69 | ␊ |
| 70 | return false;␊ |
| 71 | }␊ |
| 72 | |
