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d5fd29edcd
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, $x2=2);
52 lines
1.3 KiB
Text
52 lines
1.3 KiB
Text
@load ./main
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@load ./entities
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@load base/utils/conn-ids
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@load base/frameworks/files
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module SMTP;
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export {
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redef record Info += {
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## An ordered vector of file unique IDs seen attached to
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## the message.
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fuids: vector of string &log &default=string_vec();
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};
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## Default file handle provider for SMTP.
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global get_file_handle: function(c: connection, is_orig: bool): string;
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## Default file describer for SMTP.
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global describe_file: function(f: fa_file): string;
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}
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function get_file_handle(c: connection, is_orig: bool): string
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{
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return cat(Analyzer::ANALYZER_SMTP, c$start_time, c$smtp$trans_depth,
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c$smtp_state$mime_depth);
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}
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function describe_file(f: fa_file): string
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{
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# This shouldn't be needed, but just in case...
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if ( f$source != "SMTP" )
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return "";
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for ( _, c in f$conns )
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{
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return SMTP::describe(c$smtp);
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}
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return "";
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}
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event zeek_init() &priority=5
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{
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Files::register_protocol(Analyzer::ANALYZER_SMTP,
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Files::ProtoRegistration($get_file_handle = SMTP::get_file_handle,
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$describe = SMTP::describe_file));
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}
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event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=5
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{
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if ( c?$smtp && !c$smtp$tls )
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c$smtp$fuids += f$id;
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}
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