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feat: load host IP from proxied source IP #2566

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merged 3 commits into from
Sep 26, 2024
Merged

feat: load host IP from proxied source IP #2566

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71106f7
feat: load host IP from proxied source IP
mstopa-splunk Aug 22, 2024
1cbba52
Prevent overwriting hosts from logs
mstopa-splunk Aug 22, 2024
867f4bb
Prevent sending to the destination internal logs related to proxy
mstopa-splunk Aug 23, 2024
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5 changes: 5 additions & 0 deletions package/etc/conf.d/conflib/_splunk/splunkfields.conf
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Original file line number Diff line number Diff line change
Expand Up @@ -128,3 +128,8 @@ filter f_is_source_identified{
filter f_is_agg{
tags("agg");
};

filter f_is_proxy_ip{
"$HOST" eq "$SOURCEIP"
and "$PROXIED_SRCIP" ne ""
};
1 change: 1 addition & 0 deletions package/etc/conf.d/sources/internal.conf
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Expand Up @@ -114,6 +114,7 @@ source s_internal {
or match("Syslog connection closed; fd=" value("MESSAGE"))
or match("Syslog connection accepted; fd=" value("MESSAGE"))
or match("xml-parser failed; " value("MESSAGE"))
or match("Initializing PROXY protocol source driver" value("MESSAGE"))
};
rewrite(r_set_dest_splunk_null_queue);
};
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14 changes: 14 additions & 0 deletions package/etc/conf.d/sources/source_syslog/plugin.jinja
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Expand Up @@ -114,6 +114,13 @@ source s_{{ port_id }} {
);
};
{%- endif %}

{%- if use_proxy_connect == True %}
rewrite {
set("$PROXIED_SRCIP", value("HOST") condition(filter(f_is_proxy_ip)) );
};
{%- endif %}

if {
if {
parser {
Expand Down Expand Up @@ -391,6 +398,13 @@ source s_{{ port_id }} {
{%- endif %}
{%- endfor %}
};

{%- if use_proxy_connect == True %}
rewrite {
set("$PROXIED_SRCIP", value("HOST") condition(filter(f_is_proxy_ip)) );
};
{%- endif %}

{%- if vendor and product %}
parser {
p_set_netsource_fields(
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