Matteo Scandolo | 732c075 | 2020-01-28 07:24:13 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2020-present Open Networking Foundation |
| 3 | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package core |
| 18 | |
| 19 | type SoftwareImageAttributes int |
| 20 | |
| 21 | const ( |
| 22 | _ = iota |
| 23 | SoftwareVersion SoftwareImageAttributes = 0x8000 |
| 24 | IsCommited SoftwareImageAttributes = 0x4000 |
| 25 | IsActive SoftwareImageAttributes = 0x2000 |
| 26 | IsValid SoftwareImageAttributes = 0x1000 |
| 27 | ProductCode SoftwareImageAttributes = 0x0800 |
| 28 | ImageHash SoftwareImageAttributes = 0x0400 |
| 29 | ) |
| 30 | |
| 31 | type SoftwareImageAttributeHandler func(*uint, []byte) ([]byte, error) |
| 32 | |
| 33 | var SoftwareImageAttributeHandlers = map[SoftwareImageAttributes]SoftwareImageAttributeHandler{ |
| 34 | SoftwareVersion: GetSoftwareVersion, |
| 35 | IsCommited: GetIsCommited, |
| 36 | IsActive: GetIsActive, |
| 37 | IsValid: GetIsValid, |
| 38 | ProductCode: GetProductCode, |
| 39 | ImageHash: GetImageHash, |
| 40 | } |
| 41 | |
| 42 | func GetSoftwareImageAttributes(pos *uint, pkt []byte, content OmciContent) ([]byte, error) { |
| 43 | AttributesMask := getAttributeMask(content) |
| 44 | |
| 45 | for index := uint(16); index >= 1; index-- { |
| 46 | Attribute := 1 << (index - 1) |
| 47 | reqAttribute := Attribute & AttributesMask |
| 48 | |
| 49 | if reqAttribute != 0 { |
| 50 | pkt, _ = SoftwareImageAttributeHandlers[SoftwareImageAttributes(reqAttribute)](pos, pkt) |
| 51 | } |
| 52 | } |
| 53 | |
| 54 | pkt[8] = 0x00 // Command Processed Successfully |
| 55 | pkt[9] = uint8(AttributesMask >> 8) |
| 56 | pkt[10] = uint8(AttributesMask & 0x00FF) |
| 57 | |
| 58 | return pkt, nil |
| 59 | |
| 60 | } |
| 61 | |
| 62 | func GetSoftwareVersion(pos *uint, pkt []byte) ([]byte, error) { |
| 63 | // 14 bytes |
| 64 | version := []byte("00000000000001") |
| 65 | for _, ch := range version { |
| 66 | pkt[*pos] = ch |
| 67 | *pos++ |
| 68 | } |
| 69 | return pkt, nil |
| 70 | } |
| 71 | |
| 72 | func GetIsCommited(pos *uint, pkt []byte) ([]byte, error) { |
| 73 | // 1 bytes |
| 74 | pkt[*pos] = 0x01 |
| 75 | *pos++ |
| 76 | return pkt, nil |
| 77 | } |
| 78 | |
| 79 | func GetIsActive(pos *uint, pkt []byte) ([]byte, error) { |
| 80 | // 1 bytes |
| 81 | pkt[*pos] = 0x01 |
| 82 | *pos++ |
| 83 | return pkt, nil |
| 84 | } |
| 85 | |
| 86 | func GetIsValid(pos *uint, pkt []byte) ([]byte, error) { |
| 87 | // 1 byte |
| 88 | pkt[*pos] = 0x01 |
| 89 | *pos++ |
| 90 | return pkt, nil |
| 91 | } |
| 92 | |
| 93 | func GetProductCode(pos *uint, pkt []byte) ([]byte, error) { |
| 94 | // 25 bytes |
| 95 | // BRCM has 25 nulls |
| 96 | for i := 1; i <= 25; i++ { |
| 97 | pkt[*pos] = 0x00 |
| 98 | *pos++ |
| 99 | } |
| 100 | return pkt, nil |
| 101 | } |
| 102 | |
| 103 | func GetImageHash(pos *uint, pkt []byte) ([]byte, error) { |
| 104 | // 16 bytes |
| 105 | // BRCM has 16 nulls |
| 106 | for i := 1; i <= 16; i++ { |
| 107 | pkt[*pos] = 0x00 |
| 108 | *pos++ |
| 109 | } |
| 110 | return pkt, nil |
| 111 | } |