meta:
id: irvine
endian: be
doc: |
:field irvine_dest_callsign: ax25_frame.ax25_header.dest_callsign_raw.callsign_ror.callsign
:field irvine_src_callsign: ax25_frame.ax25_header.src_callsign_raw.callsign_ror.callsign
:field irvine_src_ssid: ax25_frame.ax25_header.src_ssid_raw.ssid
:field irvine_dest_ssid: ax25_frame.ax25_header.dest_ssid_raw.ssid
:field irvine_ctl: ax25_frame.ax25_header.ctl
:field irvine_pid: ax25_frame.payload.pid
:field irvine_spacecraft_response: ax25_frame.payload.ax25_info.body.body.spacecraft_response
:field irvine_spacecraft_id: ax25_frame.payload.ax25_info.body.body.spacecraft_id
:field irvine_ldc: ax25_frame.payload.ax25_info.body.body.ldc
:field irvine_gyro: ax25_frame.payload.ax25_info.body.body.gyro
:field irvine_mag: ax25_frame.payload.ax25_info.body.body.mag
:field irvine_daughter_a_tmp_sensor: ax25_frame.payload.ax25_info.body.body.daughter_a_tmp_sensor
:field irvine_three_v_pl_tmp_sensor: ax25_frame.payload.ax25_info.body.body.three_v_pl_tmp_sensor
:field irvine_temp_nz: ax25_frame.payload.ax25_info.body.body.temp_nz
:field irvine_volt3v: ax25_frame.payload.ax25_info.body.body.volt3v
:field irvine_curr3v: ax25_frame.payload.ax25_info.body.body.curr3v
:field irvine_volt5vpl: ax25_frame.payload.ax25_info.body.body.volt5vpl
:field irvine_curr5vpl: ax25_frame.payload.ax25_info.body.body.curr5vpl
:field irvine_src_port: ax25_frame.payload.ax25_info.body.body.src_port
:field irvine_dst_port: ax25_frame.payload.ax25_info.body.body.dst_port
:field irvine_src_ip_addr: ax25_frame.payload.ax25_info.src_ip_addr
:field irvine_dst_ip_addr: ax25_frame.payload.ax25_info.dst_ip_addr
seq:
- id: ax25_frame
type: ax25_frame
doc-ref: 'https://www.tapr.org/pub_ax25.html'
types:
ax25_frame:
seq:
- id: ax25_header
type: ax25_header
- id: payload
type:
switch-on: ax25_header.ctl & 0x13
cases:
0x03: ui_frame
0x13: ui_frame
0x00: i_frame
0x02: i_frame
0x10: i_frame
0x12: i_frame
#0x11: s_frame
ax25_header:
seq:
- id: dest_callsign_raw
type: callsign_raw
- id: dest_ssid_raw
type: ssid_mask
- id: src_callsign_raw
type: callsign_raw
- id: src_ssid_raw
type: ssid_mask
- id: ctl
type: u1
callsign_raw:
seq:
- id: callsign_ror
process: ror(1)
size: 6
type: callsign
callsign:
seq:
- id: callsign
type: str
encoding: ASCII
size: 6
ssid_mask:
seq:
- id: ssid_mask
type: u1
instances:
ssid:
value: (ssid_mask & 0x0f) >> 1
i_frame:
seq:
- id: pid
type: u1
- id: ax25_info
size-eos: true
ui_frame:
seq:
- id: pid
type: u1
- id: ax25_info
type:
switch-on: pid
cases:
0xCC: ipv4_pkt
0xF0: none_l3
size-eos: true
none_l3:
seq:
- id: data
size-eos: true
ipv4_pkt:
seq:
- id: b1
type: u1
- id: b2
type: u1
- id: total_length
type: u2be
- id: identification
type: u2be
- id: b67
type: u2be
- id: ttl
type: u1
- id: protocol
type: u1
enum: protocol_enum
- id: header_checksum
type: u2be
- id: src_ip_addr
size: 4
- id: dst_ip_addr
size: 4
- id: options
type: ipv4_options
size: ihl_bytes - 20
- id: body
size: total_length - ihl_bytes
type:
switch-on: protocol
cases:
'protocol_enum::tcp': tcp_segm
'protocol_enum::icmp': icmp_pkt
'protocol_enum::udp': udp_dtgrm
'protocol_enum::ipv6': ipv6_pkt
enums:
protocol_enum:
# http://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml
0: hopopt
1: icmp
2: igmp
3: ggp
4: ipv4
5: st
6: tcp
7: cbt
8: egp
9: igp
10: bbn_rcc_mon
11: nvp_ii
12: pup
13: argus
14: emcon
15: xnet
16: chaos
17: udp
18: mux
19: dcn_meas
20: hmp
21: prm
22: xns_idp
23: trunk_1
24: trunk_2
25: leaf_1
26: leaf_2
27: rdp
28: irtp
29: iso_tp4
30: netblt
31: mfe_nsp
32: merit_inp
33: dccp
34: x_3pc
35: idpr
36: xtp
37: ddp
38: idpr_cmtp
39: tp_plus_plus
40: il
41: ipv6
42: sdrp
43: ipv6_route
44: ipv6_frag
45: idrp
46: rsvp
47: gre
48: dsr
49: bna
50: esp
51: ah
52: i_nlsp
53: swipe
54: narp
55: mobile
56: tlsp
57: skip
58: ipv6_icmp
59: ipv6_nonxt
60: ipv6_opts
61: any_host_internal_protocol
62: cftp
63: any_local_network
64: sat_expak
65: kryptolan
66: rvd
67: ippc
68: any_distributed_file_system
69: sat_mon
70: visa
71: ipcv
72: cpnx
73: cphb
74: wsn
75: pvp
76: br_sat_mon
77: sun_nd
78: wb_mon
79: wb_expak
80: iso_ip
81: vmtp
82: secure_vmtp
83: vines
84: ttp
84: iptm
85: nsfnet_igp
86: dgp
87: tcf
88: eigrp
89: ospfigp
90: sprite_rpc
91: larp
92: mtp
93: ax_25
94: ipip
95: micp
96: scc_sp
97: etherip
98: encap
99: any_private_encryption_scheme
100: gmtp
101: ifmp
102: pnni
103: pim
104: aris
105: scps
106: qnx
107: a_n
108: ipcomp
109: snp
110: compaq_peer
111: ipx_in_ip
112: vrrp
113: pgm
114: any_0_hop
115: l2tp
116: ddx
117: iatp
118: stp
119: srp
120: uti
121: smp
122: sm
123: ptp
124: isis_over_ipv4
125: fire
126: crtp
127: crudp
128: sscopmce
129: iplt
130: sps
131: pipe
132: sctp
133: fc
134: rsvp_e2e_ignore
135: mobility_header
136: udplite
137: mpls_in_ip
138: manet
139: hip
140: shim6
141: wesp
142: rohc
255: reserved_255
instances:
version:
value: (b1 & 0xf0) >> 4
ihl:
value: b1 & 0xf
ihl_bytes:
value: ihl * 4
ipv4_options:
seq:
- id: entries
type: ipv4_option
repeat: eos
ipv4_option:
seq:
- id: b1
type: u1
- id: len
type: u1
- id: body
size: 'len > 2 ? len - 2 : 0'
instances:
copy:
value: (b1 & 0b10000000) >> 7
opt_class:
value: (b1 & 0b01100000) >> 5
number:
value: (b1 & 0b00011111)
tcp_segm:
seq:
- id: src_port
type: u2
- id: dst_port
type: u2
- id: seq_num
type: u4
- id: ack_num
type: u4
- id: b12
type: u1
- id: b13
type: u1
- id: window_size
type: u2
- id: checksum
type: u2
- id: urgent_pointer
type: u2
- id: body
size-eos: true
icmp_pkt:
seq:
- id: icmp_type
type: u1
enum: icmp_type_enum
- id: destination_unreachable
type: destination_unreachable_msg
if: icmp_type == icmp_type_enum::destination_unreachable
- id: time_exceeded
type: time_exceeded_msg
if: icmp_type == icmp_type_enum::time_exceeded
- id: echo
type: echo_msg
if: icmp_type == icmp_type_enum::echo or icmp_type == icmp_type_enum::echo_reply
enums:
icmp_type_enum:
0: echo_reply
3: destination_unreachable
4: source_quench
5: redirect
8: echo
11: time_exceeded
destination_unreachable_msg:
seq:
- id: code
type: u1
enum: destination_unreachable_code
- id: checksum
type: u2
enums:
destination_unreachable_code:
0: net_unreachable
1: host_unreachable
2: protocol_unreachable
3: port_unreachable
4: fragmentation_needed_and_df_set
5: source_route_failed
6: dst_net_unkown
7: sdt_host_unkown
8: src_isolated
9: net_prohibited_by_admin
10: host_prohibited_by_admin
11: net_unreachable_for_tos
12: host_unreachable_for_tos
13: communication_prohibited_by_admin
14: host_precedence_violation
15: precedence_cuttoff_in_effect
time_exceeded_msg:
seq:
- id: code
type: u1
enum: time_exceeded_code
- id: checksum
type: u2
enums:
time_exceeded_code:
0: time_to_live_exceeded_in_transit
1: fragment_reassembly_time_exceeded
echo_msg:
seq:
- id: code
contents: [0]
- id: checksum
type: u2
- id: identifier
type: u2
- id: seq_num
type: u2
- id: data
size-eos: true
udp_dtgrm:
seq:
- id: src_port
type: u2
- id: dst_port
type: u2
- id: length
type: u2
- id: checksum
type: u2
- id: body
type: irvine_udp_payload
size-eos: true
ipv6_pkt:
seq:
- id: version
type: b4
- id: traffic_class
type: b8
- id: flow_label
type: b20
- id: payload_length
type: u2
- id: next_header_type
type: u1
- id: hop_limit
type: u1
- id: src_ipv6_addr
size: 16
- id: dst_ipv6_addr
size: 16
- id: next_header
type:
switch-on: next_header_type
cases:
0: option_hop_by_hop
4: ipv4_pkt
6: tcp_segm
17: udp_dtgrm
59: no_next_header
- id: rest
size-eos: true
no_next_header: {}
option_hop_by_hop:
seq:
- id: next_header_type
type: u1
- id: hdr_ext_len
type: u1
- id: body
size: hdr_ext_len - 1
- id: next_header
type:
switch-on: next_header_type
cases:
0: option_hop_by_hop
6: tcp_segm
59: no_next_header
irvine_udp_payload:
seq:
- id: spacecraft_response
type: u1
- id: spacecraft_id
type: str
encoding: ASCII
terminator: 0
- id: ldc
type: u2
doc: 'value = ldc * 256 [s]'
- id: gyro
type: s4
repeat: expr
repeat-expr: 3
doc: 'value = gyro / (1024.0 * 1024.0) [deg/s]'
- id: mag
type: s4
repeat: expr
repeat-expr: 3
doc: 'value = mag / (1024.0 * 1024.0) [nT]'
- id: daughter_a_tmp_sensor
type: s2
doc: 'value daughter_a_tmp_sensor / 64.0 [C]'
- id: three_v_pl_tmp_sensor
type: s2
doc: 'value = three_v_pl_tmp_sensor / 64.0 [C]'
- id: temp_nz
type: s2
doc: 'value = temp_nz / 64.0 [C]'
- id: volt3v
type: s4
doc: 'value = volt3v / (256.0 * 256.0)'
- id: curr3v
type: s4
doc: 'value = curr3v / (256.0 * 256.0)'
- id: volt5vpl
type: s4
doc: 'value = volt5vpl / (256.0 * 256.0)'
- id: curr5vpl
type: s4
doc: 'value = curr5vpl / (256.0 * 256.0)'
instances:
ldc_secs:
value: ldc * 256.0
ldc_mins:
value: ldc_secs / 60.0
ldc_hrs:
value: ldc_mins / 60.0
mag_x:
value: mag[0] / (1024.0 * 1024.0)
mag_y:
value: mag[1] / (1024.0 * 1024.0)
mag_z:
value: mag[2] / (1024.0 * 1024.0)
doc: 'Magnitudes in [nT]!'
gyro_x:
value: gyro[0] / (1024.0 * 1024.0)
gyro_y:
value: gyro[1] / (1024.0 * 1024.0)
gyro_z:
value: gyro[2] / (1024.0 * 1024.0)
doc: 'Gyroscope in [deg/s]!'
daughter_a_tmp_sensor_val_k:
value: daughter_a_tmp_sensor / 64.0
three_v_pl_tmp_sensor_val_k:
value: three_v_pl_tmp_sensor / 64.0
temp_nz_val_k:
value: temp_nz / 64.0
doc: 'Temperatures in [K]!'
daughter_a_tmp_sensor_val_deg_c:
value: daughter_a_tmp_sensor_val_k - 273.15
three_v_pl_tmp_sensor_val_deg_c:
value: three_v_pl_tmp_sensor_val_k - 273.15
temp_nz_val_deg_c:
value: temp_nz_val_k - 273.15
doc: 'Temperatures in [C]!'
volt3v_val:
value: volt3v / (256.0 * 256.0)
curr3v_val:
value: curr3v / (256.0 * 256.0)
volt5vpl_val:
value: volt5vpl / (256.0 * 256.0)
curr5vpl_val:
value: curr5vpl / (256.0 * 256.0)
doc: 'Voltages in [V]! Currents in [A]!'
doc: |
IRVINE payload inside a UDP datagram multicast packet
Currently partially reverse-engineered
Conversion values taken from source-code
