1 | <?php |
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46 | class NetLink |
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47 | { |
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48 | /** |
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49 | * the unique ID of this interface |
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50 | * |
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51 | * on Linux, administrators and management tools can change the name of |
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52 | * a network interface. when they do, this ID remains the same |
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53 | * |
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54 | * @var int |
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55 | */ |
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56 | protected $interfaceIndex; |
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57 | |||
58 | /** |
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59 | * the name of this interface |
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60 | * |
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61 | * this is guaranteed to be unique at any one time. On Linux (at least) it |
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62 | * can be changed at any time by administrators and management tools |
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63 | * |
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64 | * @var string |
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65 | */ |
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66 | protected $interfaceName; |
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67 | |||
68 | /** |
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69 | * a list of the properties advertised for this interface |
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70 | * |
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71 | * @var array |
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72 | */ |
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73 | protected $interfaceProperties = []; |
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74 | |||
75 | /** |
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76 | * a list of the flags that have been set on this interface |
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77 | * |
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78 | * @var array |
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79 | */ |
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80 | protected $interfaceFlags; |
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81 | |||
82 | /** |
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83 | * what kind of link does this interface use? |
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84 | * |
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85 | * examples (on Linux) include: |
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86 | * |
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87 | * - link/loopback |
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88 | * - link/ether |
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89 | * - link/none |
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90 | * |
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91 | * @var string |
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92 | */ |
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93 | protected $linkType; |
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94 | |||
95 | /** |
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96 | * what is the MAC address of this interface? |
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97 | * |
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98 | * interfaces attached to real devices should have a MAC address |
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99 | * |
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100 | * some interfaces (e.g. VPN endpoints) will not have a MAC address |
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101 | * |
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102 | * @var string|null |
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103 | */ |
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104 | protected $physicalAddress; |
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105 | |||
106 | /** |
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107 | * what is the hardware broadcast address of this interface? |
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108 | * |
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109 | * interfaces that do not have a MAC address will not have a hardware |
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110 | * broadcast address either |
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111 | * |
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112 | * @var string|null |
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113 | */ |
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114 | protected $hardwareBroadcastAddress; |
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115 | |||
116 | public function __construct($interfaceIndex, $interfaceName, $interfaceMaster, $interfaceFlags, $interfaceProperties, $linkType, $physicalAddress, $hardwareBroadcastAddress) |
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127 | } |
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128 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: