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Fixed a parsing bug in the SSL analyzer thanks to tracefile from Aashish Sharma.

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This commit is contained in:
Seth Hall 2011-07-01 06:49:41 -04:00
parent 26248fa243
commit bab76be87a
1 changed files with 14 additions and 1 deletions
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15
src/ssl-protocol.pac
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@ -609,6 +609,16 @@ type CertificateVerify(rec: SSLRecord) = record {
# The finished messages are always sent after encryption is in effect,
# so we will not be able to read those message.
type Finished(rec: SSLRecord) = record {
cont : bytestring &restofdata &transient;
} &let {
state_changed : bool =
$context.connection.transition(STATE_SERVER_HELLO_DONE,
STATE_COMM_ENCRYPTED, rec.is_orig, true) ||
$context.connection.transition(STATE_CLIENT_FINISHED,
STATE_COMM_ENCRYPTED, rec.is_orig, false) ||
$context.connection.lost_track();
};
######################################################################
@ -635,6 +645,9 @@ type Handshake(rec: SSLRecord) = record {
SERVER_HELLO_DONE -> server_hello_done : ServerHelloDone(rec);
CERTIFICATE_VERIFY -> certificate_verify : CertificateVerify(rec);
CLIENT_KEY_EXCHANGE -> client_key_exchange : ClientKeyExchange(rec);
FINISHED -> finished : Finished(rec);
CERTIFICATE_URL -> certificate_url : bytestring &restofdata &transient;
CERTIFICATE_STATUS -> certificate_status : bytestring &restofdata &transient;
default -> unknown_handshake : UnknownHandshake(this, rec.is_orig);
} &length = to_int()(length);
};
@ -679,7 +692,7 @@ type CiphertextRecord(rec: SSLRecord, is_orig: bool) = record {
######################################################################
type SSLPDU(is_orig: bool) = record {
records : SSLRecord(is_orig)[] &until($element == 0);
records : SSLRecord(is_orig)[] &until($element <= 0);
} &byteorder = bigendian;