zeek/testing/btest/spicy/context.spicy
2024-03-15 17:36:11 +01:00

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# @TEST-REQUIRES: have-spicy
#
# @TEST-EXEC: spicyz -d -o x.hlto %INPUT ./ssh.evt
# @TEST-EXEC: zeek -b -r ${TRACES}/ssh/single-conn.trace Zeek::Spicy x.hlto ssh.zeek Spicy::enable_print=T >output
# @TEST-EXEC: btest-diff output
#
# @TEST-DOC: Check that the Zeek plugin passes a (and the same) %context object to both sides of a connection.
module SSH;
type Banner = unit {
magic : /SSH-/;
version : /[^-]*/;
dash : /-/;
software: /[^\r\n]*/;
};
type Context = tuple<orig_version: bytes, resp_version: bytes>;
function print_if_we_have_seen_both_sides(ctx: Context&) {
if ( |ctx.orig_version| && |ctx.resp_version| )
print ctx;
}
public type Originator = unit {
%context = Context;
banner: Banner {
self.context().orig_version += self.banner.version;
}
on %done { print_if_we_have_seen_both_sides(self.context()); }
};
public type Responder = unit {
%context = Context;
banner: Banner {
self.context().resp_version += self.banner.version;
}
on %done { print_if_we_have_seen_both_sides(self.context()); }
};
# @TEST-START-FILE ssh.evt
protocol analyzer spicy::SSH over TCP:
parse originator with SSH::Originator,
parse responder with SSH::Responder;
# @TEST-END-FILE
# @TEST-START-FILE ssh.zeek
event zeek_init() {
Analyzer::register_for_port(Analyzer::ANALYZER_SPICY_SSH, 22/tcp);
}
# @TEST-END-FILE