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Prefer explicit construction to coercion in record initialization

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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, $x2=2);
This commit is contained in:
Benjamin Bannier 2025-07-10 09:42:44 +02:00 • committed by Christian Kreibich
parent 54f9e45597
commit d5fd29edcd
139 changed files with 786 additions and 788 deletions
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46
scripts/policy/frameworks/intel/seen/http-headers.zeek
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@ -13,10 +13,10 @@ event http_header(c: connection, is_orig: bool, name: string, value: string) &gr
# Remove the occasional port value that shows up here.
local host = gsub(value, /:[[:digit:]]+$/, "");
if ( is_valid_ip(host) )
Intel::seen([$host=to_addr(host),
$indicator_type=Intel::ADDR,
$conn=c,
$where=HTTP::IN_HOST_HEADER]);
Intel::seen(Intel::Seen($host=to_addr(host),
$indicator_type=Intel::ADDR,
$conn=c,
$where=HTTP::IN_HOST_HEADER));
break;
case "X-FORWARDED-FOR":
@ -25,10 +25,10 @@ event http_header(c: connection, is_orig: bool, name: string, value: string) &gr
local addrs = extract_ip_addresses(value);
for ( i in addrs )
{
Intel::seen([$host=to_addr(addrs[i]),
$indicator_type=Intel::ADDR,
$conn=c,
$where=HTTP::IN_X_FORWARDED_FOR_HEADER]);
Intel::seen(Intel::Seen($host=to_addr(addrs[i]),
$indicator_type=Intel::ADDR,
$conn=c,
$where=HTTP::IN_X_FORWARDED_FOR_HEADER));
}
}
break;
@ -38,36 +38,36 @@ event http_header(c: connection, is_orig: bool, name: string, value: string) &gr
event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::DOMAIN"
{
if ( ! is_orig || name != "HOST" )
return;
return;
# Remove the occasional port value that shows up here.
local host = gsub(value, /:[[:digit:]]+$/, "");
if ( ! is_valid_ip(host) )
Intel::seen([$indicator=host,
$indicator_type=Intel::DOMAIN,
$conn=c,
$where=HTTP::IN_HOST_HEADER]);
Intel::seen(Intel::Seen($indicator=host,
$indicator_type=Intel::DOMAIN,
$conn=c,
$where=HTTP::IN_HOST_HEADER));
}
event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::URL"
{
if ( ! is_orig || name != "REFERER" )
return;
return;
Intel::seen([$indicator=sub(value, /^.*:\/\//, ""),
$indicator_type=Intel::URL,
$conn=c,
$where=HTTP::IN_REFERRER_HEADER]);
Intel::seen(Intel::Seen($indicator=sub(value, /^.*:\/\//, ""),
$indicator_type=Intel::URL,
$conn=c,
$where=HTTP::IN_REFERRER_HEADER));
}
event http_header(c: connection, is_orig: bool, name: string, value: string) &group="Intel::SOFTWARE"
{
if ( ! is_orig || name != "USER-AGENT" )
return;
return;
Intel::seen([$indicator=value,
$indicator_type=Intel::SOFTWARE,
$conn=c,
$where=HTTP::IN_USER_AGENT_HEADER]);
Intel::seen(Intel::Seen($indicator=value,
$indicator_type=Intel::SOFTWARE,
$conn=c,
$where=HTTP::IN_USER_AGENT_HEADER));
}