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support stream rate in Kbps, Mbps and Gbps

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This commit is contained in:
Christian Giese
2023-02-07 20:49:13 +00:00
parent 9dd77d4c27
commit efaa10f220
2 changed files with 32 additions and 1 deletions
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27
code/bngblaster/src/bbl_config.c
View File

@ -1636,6 +1636,33 @@ json_parse_stream(json_t *stream, bbl_stream_config_s *stream_config)
}
stream_config->pps = bps / (stream_config->length * 8);
}
value = json_object_get(stream, "Kbps");
if(value) {
bps = json_number_value(value);
if(!bps) {
fprintf(stderr, "JSON config error: Invalid value for stream->Kbps\n");
return false;
}
stream_config->pps = (bps*1000) / (stream_config->length * 8);
}
value = json_object_get(stream, "Mbps");
if(value) {
bps = json_number_value(value);
if(!bps) {
fprintf(stderr, "JSON config error: Invalid value for stream->Mbps\n");
return false;
}
stream_config->pps = (bps*1000000) / (stream_config->length * 8);
}
value = json_object_get(stream, "Gbps");
if(value) {
bps = json_number_value(value);
if(!bps) {
fprintf(stderr, "JSON config error: Invalid value for stream->Gbps\n");
return false;
}
stream_config->pps = (bps*1000000000) / (stream_config->length * 8);
}
}
if(!stream_config->pps) stream_config->pps = 1;

6
docsrc/sources/configuration/streams.rst
View File

@ -109,7 +109,11 @@ and inner IPv4 header.
The ``pps`` option supports also float numbers like 0.1, or 2.5 PPS and has
priority over ``bps`` where the second is only a helper to calculate the ``pps``
based on given ``bps`` and ``length``.
based on given ``bps`` and ``length``. The resulting rate in ``bps`` is the
layer 3 rate because ``length`` is also the layer 3 length (IP header + payload).
It is also supported to put the capital letters ``K`` (Kilo), ``M`` (Mega)
or ``G`` (Giga) in front of ``bps`` for better readability.
For example ``"Gbps": 1`` which is equal to ``"bps": 1000000000``.
The options ``access-ipv4-source-address`` and ``access-ipv6-source-address``
can be used to test the BNG RPF functionality with traffic sent from source addresses