zeek/scripts/policy/frameworks/intel/seen/conn-established.zeek
Benjamin Bannier d5fd29edcd Prefer explicit construction to coercion in record initialization
While we support initializing records via coercion from an expression
list, e.g.,

    local x: X = [$x1=1, $x2=2];

this can sometimes obscure the code to readers, e.g., when assigning to
value declared and typed elsewhere. The language runtime has a similar
overhead since instead of just constructing a known type it needs to
check at runtime that the coercion from the expression list is valid;
this can be slower than just writing the readible code in the first
place, see #4559.

With this patch we use explicit construction, e.g.,

    local x = X($x1=1, $x2=2);
2025-07-11 16:28:37 -07:00

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Text

@load base/frameworks/intel
@load ./where-locations
event connection_established(c: connection)
{
if ( c$orig$state == TCP_ESTABLISHED &&
c$resp$state == TCP_ESTABLISHED )
{
Intel::seen(Intel::Seen($host=c$id$orig_h, $conn=c, $where=Conn::IN_ORIG));
Intel::seen(Intel::Seen($host=c$id$resp_h, $conn=c, $where=Conn::IN_RESP));
}
}