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Examples

A guide for developers to access a FMADIO using the web based API. Examples are provided for all endpoints.

FMADIO API

The examples show how to use the different parameters for the uri endpoint.

Note: Replace the IP 127.0.0.1 with the host IP of your FMADIO device.

Status

curl -u fmadio:100g "http://127.0.0.1/sysmaster/status"

Device Status

curl -u fmadio:100g "http://127.0.0.1/sysmaster/stats_summary"

CaptureList

curl -u fmadio:100g "http://127.0.0.1/stream/list"

Capture Split By Filesize

curl -u fmadio:100g "http://127.0.0.1/stream/ssize?
    StreamName=stream_test_001&
    StreamView=split_1GB&"

Capture Split By Time

curl -u fmadio:100g "http://127.0.0.1/stream/stime?
    StreamName=stream_test_001&
    StreamView=split_1sec&"

Legacy Interface

Single

StreamName only:

curl -u fmadio:100g "http://127.0.0.1/pcap/single?StreamName=stream_test_001"

StreamName and FilterBPF

curl -u fmadio:100g "http://127.0.0.1/pcap/single?StreamName=stream_test_001&" -G --data-urlencode "FilterBPF=tcp"

StreamName and Compression

curl -u fmadio:100g "http://127.0.0.1/pcap/single?StreamName=stream_test_001&Compression=fast"

StreamName and FilterRE

curl -u fmadio:100g "http://127.0.0.1/pcap/single?StreamName=stream_test_001&" -G --data-urlencode "FilterRE=/login/i"

StreamName, Compression and FilterBPF

curl -u fmadio:100g "http://127.0.0.1/pcap/single?StreamName=stream_test_001&Compression=fast&" -G --data-urlencode "FilterBPF=tcp"

SplitTime

StreamName, Start and Stop

curl -u fmadio:100g "http://127.0.0.1/pcap/splittime?StreamName=stream_test_001&Start=1530498788000000000&Stop=1530498789000000000&"

StreamName, Start, Stop and FilterBPF

curl -u fmadio:100g "http://127.0.0.1/pcap/splittime?StreamName=stream_test_001&Start=1530498788000000000&Stop=1530498789000000000&" -G --data-urlencode "FilterBPF=tcp"

StreamName, Start, Stop and FilterPort

curl -u fmadio:100g "http://127.0.0.1/pcap/splittime?StreamName=stream_test_001&Start=1530498788000000000&Stop=1530498789000000000&FilterPort=0"

TimeRange

TSBegin and TSEnd

curl -u fmadio:100g "http://127.0.0.1/pcap/timerange?TSBegin=1497329459948411420&TSEnd=1597329469948411420"

TSBegin, TSEnd, TSMode and TSMax

curl -u fmadio:100g "http://127.0.0.1/pcap/timerange?TSBegin=1497329459948411420&TSEnd=1597329469948411420&TSMode=nanos&TSMax=1000000"

V1 API

The examples show how to use the different parameters for the uri endpoint.

Note: Replace the IP 127.0.0.1 with the host IP of your FMADIO device.

API v1 - Single

StreamName only.

curl -u fmadio:xxxxx "http://127.0.0.1/api/v1/pcap/single?
    StreamName=stream_test"

StreamName and FilterBPF

curl -u fmadio:xxxxx "http://127.0.0.1/api/v1/pcap/single?
    StreamName=stream_test_001" 
    -G --data-urlencode "FilterBPF=tcp"

StreamName and Compression

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/single?
    StreamName=stream_test_001&
    Compression=fast"

StreamName, Compression and FilterBPF

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/single?
    StreamName=stream_test_001&
    Compression=fast" 
    -G --data-urlencode "FilterBPF=tcp"

API v1 - SplitTime

StreamName, Start and Stop

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/splittime?
    StreamName=stream_test_001&
    Start=1530498788000000000&
    Stop=1530498789000000000"

StreamName, Start, Stop and FilterBPF

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/splittime?
    StreamName=stream_test_001&
    Start=1530498788000000000&
    Stop=1530498789000000000" 
    -G --data-urlencode "FilterBPF=tcp"

StreamName, Start, Stop, FilterBPF and Compression

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/splittime?
    StreamName=stream_test_001&
    Start=1530498788000000000&
    Stop=1530498789000000000&
    Compression=fast" 
    -G --data-urlencode "FilterBPF=tcp"

StreamName, Start, Stop and Compression

curl -u fmadio:xxxx"http://127.0.0.1/api/v1/pcap/splittime?
    StreamName=stream_test_001&
    Start=1530498788000000000&
    Stop=1530498789000000000&
    Compression=fast"

API v1 - TimeRange

The Time Range function is very useful as the FMADIO system will work out which (or multiple) captures to check based on the Epoch Time stamp value.

TSBegin and TSEnd

Nanosecond Epoch selection

 curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
  TSBegin=1621772572136996000&
  TSEnd=1621774913584264000"

Second Epoch time Selection

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
  TSUnit=sec&
  TSBegin=1621772572&
  TSEnd=1621774913"

Year Month Day Hour Min

Using the TSUnit option can use a more friendly time selection.

By default it uses the TimeZone configured on the system

Fetch PCAP from 3AM to 4AM on 2023 / 10 (October) / 1st

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
  TSUnit=YYYYMMDD_HHMMSS&
  TSBegin=20231001_030000&
  TSEnd=20231001_040000"

Year Month Dat Hour Min with Timezone

Same as above but specifying the timezone.

NOTE: if using the full TSZone = Asia/Singapore for example, CURL will append a ? to the URL. Its recommended to use the City name only to avoid confusing CURL.

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
  TSUnit=YYYYMMDD_HHMMSS&
  TSZone=Singapore&
  TSBegin=20231001_030000&
  TSEnd=20231001_040000"

Year Month Day Hour Min Timzone and BPF Filter with De-encapsulation

Specifying all of the above with a BPF Filter, with BPF De-encapsulation enabled

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
  TSUnit=YYYYMMDD_HHMMSS&
  TSZone=Singapore&
  TSBegin=20231001_030000&
  TSEnd=20231001_040000&
  FilterBPFDecap=true&"
  -G --data-urlencode "FilterBPF=icmp"

TSBegin, TSEnd and TSMax

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1621772572136996000&
    TSEnd=1621774913584264000&
    TSMax=100000"

TSBegin, TSEnd and FilterBPF

curl -u fmadio:xxxx  "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1621772572136996000&
    TSEnd=1621774913584264000" 
    -G --data-urlencode "FilterBPF=tcp"

TSBegin, TSEnd and Compression

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1621772572136996000&
    TSEnd=1621774913584264000&
    Compression=fast"

TSBegin, TSEnd, FilterBPF and Compression

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1621772572136996000&
    TSEnd=1621774913584264000&
    Compression=fast" 
    -G --data-urlencode "FilterBPF=tcp"

TSBegin, TSEnd, FilterBPF and FilterFrame

Frame Filters based on FMADIO Capture system

Filter based on FMADIO Capture port number

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=capture.port==0" 
     | tcpdump -r - -nn 
     | head

Filter based on multiple FMADIO Capture port numbers

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=capture.port==0,1,2,3" 
     | tcpdump -r - -nn 
     | head

Filter based on exclude FMADIO Capture port numbers

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=capture.port!=0" 
     | tcpdump -r - -nn 
     | head

Frame filters specific to 7130 (Metamako) hardware footer

Filter for a specific 7130 Device 54932 (any port)

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=a7130.srcdevice==54932" 
     | tcpdump -r - -nn 
     | head

Filter for everything except a specific 7130 Device (not device id 54932)

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=a7130.srcdevice!=54932" 
     | tcpdump -r - -nn 
     | head

Filter for a specific 7130 Port number 1

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=a7130.srcport==1" 
     | tcpdump -r - -nn 
     | head

Filter for multiple 7130 Port numbers 1, 2, 3, 5, 10

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=a7130.srcport==1,2,3,5,10" 
     | tcpdump -r - -nn 
     | head

Filter for everything except 7130 Port number 10

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&"
     -G --data-urlencode "FilterFrame=a7130.srcport!=10" 
     | tcpdump -r - -nn 
     | head

Filter on a specific 7130 Port number and use the 7130 Footer Timestamp as the PCAP timestamp. Overriding the current TimeStamp setting

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&TSMode=arista7130"
     -G --data-urlencode "FilterFrame=a7130.srcport!=10" 
     | tcpdump -r - -nn 
     | head

Frame filters specific to Cisco 3550 (Exablaze) hardware footer

Filter on a specific ingress port of the Cisco 3550, and use the Footer timestamp as the PCAP timestamp.

curl "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1658744408270221800&
    TSEnd=1658744501189259300&TSMode=cisco3550"
     -G --data-urlencode "FilterFrame=c3550.srcport==48" 
     | tcpdump -r - -nn 
     | head

Miscellaneous Examples

Encapsulation Debug

Many times the exact packet encapsulation is unclear, the following uses a wireshark filter expression to extract and show the full encapsulation format of the packet. From this a high speed BPF filter can be used to process the data.

In the below example we are using the Wireshark filter "ip.addr == 192.168.1.1" on a historical capture.

curl -u fmadio:xxxx "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1666706401000000000&
    TSEnd=1666706401010000000" 
    |  tshark -r - -T fields  -e frame.protocols -e ip.src -e ip.dst 
    -Y "ip.addr == 192.168.1.1"

Alternatively running on the currently running capture via SSH on the fmadio box looks like the following. This example filters on any UDP traffic.

sudo stream_cat 
    | tshark -r - -T fields  -e frame.protocols -e ip.src -e ip.dst -Y "udp" 
    | head

The output looks like the following

eth:ethertype:vlan:ethertype:ip:udp:ntp 106.10.186.200  192.168.133.10
eth:ethertype:vlan:ethertype:ip:udp:ntp 106.10.186.201  192.168.133.10
eth:ethertype:vlan:ethertype:ip:udp:ntp 167.172.70.21   192.168.133.10
eth:ethertype:vlan:ethertype:ip:udp:ntp 106.10.186.200  192.168.133.10
eth:ethertype:vlan:ethertype:ip:udp:ntp 106.10.186.201  192.168.133.10
eth:ethertype:vlan:ethertype:ip:udp:ntp 167.172.70.21   192.168.133.10

The above output shows there is a single VLAN tag in the packet. Making the equivalent BPF filter

vlan and udp

With the final BPF filter using a CURL request

curl -u fmadio:xxxxx "http://127.0.0.1/api/v1/pcap/timerange?
    TSBegin=1671407102&
    TSEnd=1671407752&
    TSMode=sec&" 
    -G --data-urlencode "FilterBPF=vlan and udp" 
    | tcpdump -r - -n 
    | head

Output per below

23:47:45.409489 IP 106.10.186.201.123 > 192.168.133.10.123: NTPv4, Server, length 48
23:52:14.407364 IP 167.172.70.21.123 > 192.168.133.10.123: NTPv4, Server, length 48
23:55:42.405072 IP 106.10.186.200.123 > 192.168.133.10.123: NTPv4, Server, length 48
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