| 1 | #ifndef _RT_PROTOCOL_H |
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| 2 | #define _RT_PROTOCOL_H |
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| 3 | |
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| 4 | #include "libtrace.h" |
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| 5 | #ifdef HAVE_PCAP |
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| 6 | #include <pcap.h> |
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| 7 | #endif |
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| 8 | |
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| 9 | #define CAPTURE_PORT 3434 |
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| 10 | #define COLLECTOR_PORT 3435 |
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| 11 | |
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| 12 | #define RT_MAX_HDR_SIZE 256 |
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| 13 | #define MAX_SEQUENCE 2147483647 |
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| 14 | |
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| 15 | #define RT_DATA_SIMPLE 1000 |
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| 16 | #define RT_DATA_PCAP 2000 |
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| 17 | |
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| 18 | /* Procedure for adding new RT control types |
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| 19 | * ------------------------------------------- |
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| 20 | * |
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| 21 | * Add type to the enum list |
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| 22 | * Add a struct below (even if it is empty) |
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| 23 | * Update rt_get_capture_length |
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| 24 | * If type is intended to be sent TO clients, update rt_read_packet |
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| 25 | * Otherwise, update server implementations e.g. WDCAP |
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| 26 | * |
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| 27 | * Procedure for adding new RT data types |
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| 28 | * ---------------------------------------- |
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| 29 | * |
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| 30 | * If you are adding a new format: |
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| 31 | * RT_DATA_(new format) must be equal to RT_DATA_SIMPLE + |
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| 32 | * TRACE_FORMAT_(new_format) |
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| 33 | * Add a new dummy trace type to the rt_format_t structure |
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| 34 | * Set the dummy trace to NULL in rt_init_input |
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| 35 | * Update rt_set_format |
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| 36 | * |
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| 37 | * If you are adding a new PCAP DLT type: |
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| 38 | * RT_DATA_PCAP_(new DLT) must be equal to RT_DATA_PCAP + (DLT value) |
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| 39 | * |
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| 40 | */ |
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| 41 | |
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| 42 | /* Type field definitions */ |
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| 43 | enum rt_field_t { |
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| 44 | RT_HELLO =1, /* Connection accepted */ |
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| 45 | RT_START =2, /* Request for data transmission to begin */ |
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| 46 | RT_ACK =3, /* Data acknowledgement */ |
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| 47 | RT_STATUS =4, /* Fifo status packet */ |
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| 48 | RT_DUCK =5, /* Dag duck info packet */ |
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| 49 | RT_END_DATA =6, /* Server is exiting message */ |
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| 50 | RT_CLOSE =7, /* Client is exiting message */ |
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| 51 | RT_DENY_CONN =8, /* Connection has been denied */ |
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| 52 | RT_PAUSE =9, /* Request server to suspend sending data */ |
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| 53 | RT_PAUSE_ACK =10, /* Server is paused message */ |
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| 54 | RT_OPTION =11, /* Option request */ |
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| 55 | RT_KEYCHANGE =12, /* Anonymisation key has changed */ |
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| 56 | |
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| 57 | RT_DATA_ERF =RT_DATA_SIMPLE + TRACE_FORMAT_ERF, |
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| 58 | RT_DATA_WAG =RT_DATA_SIMPLE + TRACE_FORMAT_WAG, |
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| 59 | RT_DATA_LEGACY_ATM =RT_DATA_SIMPLE + TRACE_FORMAT_LEGACY_ATM, |
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| 60 | RT_DATA_LEGACY_POS =RT_DATA_SIMPLE + TRACE_FORMAT_LEGACY_POS, |
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| 61 | RT_DATA_LEGACY_ETH =RT_DATA_SIMPLE + TRACE_FORMAT_LEGACY_ETH, |
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| 62 | RT_DATA_LINUX_NATIVE =RT_DATA_SIMPLE + TRACE_FORMAT_LINUX_NATIVE, |
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| 63 | |
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| 64 | #ifdef HAVE_PCAP |
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| 65 | RT_DATA_PCAP_NULL =RT_DATA_PCAP + DLT_NULL, |
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| 66 | RT_DATA_PCAP_EN10MB =RT_DATA_PCAP + DLT_EN10MB, |
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| 67 | RT_DATA_PCAP_ATM_RFC1483 =RT_DATA_PCAP + DLT_ATM_RFC1483, |
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| 68 | RT_DATA_PCAP_IEEE802_11 =RT_DATA_PCAP + DLT_IEEE802_11, |
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| 69 | #ifdef DLT_LINUX_SLL |
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| 70 | RT_DATA_PCAP_LINUX_SLL =RT_DATA_PCAP + DLT_LINUX_SLL, |
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| 71 | #endif |
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| 72 | #ifdef DLT_PFLOG |
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| 73 | RT_DATA_PCAP_PFLOG =RT_DATA_PCAP + DLT_PFLOG, |
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| 74 | #endif |
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| 75 | #endif |
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| 76 | RT_LAST = 3000 |
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| 77 | }; |
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| 78 | |
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| 79 | typedef struct fifo_info { |
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| 80 | uint64_t in; |
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| 81 | uint64_t out; |
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| 82 | uint64_t ack; |
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| 83 | uint64_t length; |
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| 84 | uint64_t used; |
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| 85 | } fifo_info_t; |
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| 86 | |
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| 87 | /* RT packet header */ |
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| 88 | typedef struct rt_header { |
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| 89 | enum rt_field_t type; |
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| 90 | uint16_t length; |
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| 91 | uint32_t sequence; |
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| 92 | } rt_header_t; |
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| 93 | |
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| 94 | /* TODO: Reorganise this struct once more hello info is added */ |
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| 95 | typedef struct rt_hello { |
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| 96 | uint8_t reliable; |
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| 97 | } rt_hello_t; |
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| 98 | |
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| 99 | #if 0 |
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| 100 | typedef struct rt_start { |
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| 101 | |
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| 102 | } rt_start_t; |
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| 103 | #endif |
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| 104 | |
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| 105 | typedef struct rt_ack { |
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| 106 | uint32_t sequence; |
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| 107 | } rt_ack_t; |
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| 108 | |
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| 109 | typedef struct rt_status { |
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| 110 | fifo_info_t fifo_status; |
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| 111 | } rt_status_t; |
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| 112 | |
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| 113 | #if 0 |
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| 114 | typedef struct rt_duck { |
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| 115 | /*duckinf_t duck; */ |
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| 116 | } rt_duck_t; |
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| 117 | #endif |
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| 118 | |
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| 119 | #if 0 |
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| 120 | typedef struct rt_end_data { |
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| 121 | |
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| 122 | } rt_end_data_t; |
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| 123 | #endif |
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| 124 | |
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| 125 | #if 0 |
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| 126 | typedef struct rt_close { |
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| 127 | |
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| 128 | } rt_close_t; |
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| 129 | #endif |
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| 130 | |
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| 131 | /* Connection denied reasons */ |
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| 132 | enum rt_conn_denied_t { |
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| 133 | RT_DENY_WRAPPER =1, |
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| 134 | RT_DENY_FULL =2, |
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| 135 | RT_DENY_AUTH =3 |
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| 136 | }; |
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| 137 | |
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| 138 | typedef struct rt_deny_conn { |
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| 139 | enum rt_conn_denied_t reason; |
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| 140 | } rt_deny_conn_t; |
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| 141 | |
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| 142 | #if 0 |
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| 143 | typedef struct rt_pause { |
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| 144 | |
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| 145 | } rt_pause_t; |
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| 146 | #endif |
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| 147 | |
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| 148 | #if 0 |
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| 149 | typedef struct rt_pause_ack { |
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| 150 | |
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| 151 | } rt_pause_ack_t; |
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| 152 | #endif |
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| 153 | |
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| 154 | #if 0 |
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| 155 | typedef struct rt_option { |
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| 156 | |
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| 157 | } rt_option_t; |
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| 158 | #endif |
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| 159 | |
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| 160 | #if 0 |
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| 161 | typedef struct rt_keychange { |
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| 162 | |
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| 163 | } rt_keychange_t; |
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| 164 | #endif |
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| 165 | |
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| 166 | #endif |
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