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net/tls: Add TLS Alert definitions

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I'm about to add support for kernel handshake API consumers to send
TLS Alerts, so introduce the needed protocol definitions in the new
header tls_prot.h.

This presages support for Closure alerts. Also, support for alerts
is a pre-requite for handling session re-keying, where one peer will
signal the need for a re-key by sending a TLS Alert.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/169047934064.5241.8377890858495063518.stgit@oracle-102.nfsv4bat.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Chuck Lever 2023-07-27 13:35:50 -04:00 committed by Jakub Kicinski
parent 6a7eccef47
commit 0257427146
1 changed files with 42 additions and 0 deletions
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42
include/net/tls_prot.h
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@ -23,4 +23,46 @@ enum {
TLS_RECORD_TYPE_ACK = 26,
};
/*
* TLS Alert protocol: AlertLevel
*/
enum {
TLS_ALERT_LEVEL_WARNING = 1,
TLS_ALERT_LEVEL_FATAL = 2,
};
/*
* TLS Alert protocol: AlertDescription
*/
enum {
TLS_ALERT_DESC_CLOSE_NOTIFY = 0,
TLS_ALERT_DESC_UNEXPECTED_MESSAGE = 10,
TLS_ALERT_DESC_BAD_RECORD_MAC = 20,
TLS_ALERT_DESC_RECORD_OVERFLOW = 22,
TLS_ALERT_DESC_HANDSHAKE_FAILURE = 40,
TLS_ALERT_DESC_BAD_CERTIFICATE = 42,
TLS_ALERT_DESC_UNSUPPORTED_CERTIFICATE = 43,
TLS_ALERT_DESC_CERTIFICATE_REVOKED = 44,
TLS_ALERT_DESC_CERTIFICATE_EXPIRED = 45,
TLS_ALERT_DESC_CERTIFICATE_UNKNOWN = 46,
TLS_ALERT_DESC_ILLEGAL_PARAMETER = 47,
TLS_ALERT_DESC_UNKNOWN_CA = 48,
TLS_ALERT_DESC_ACCESS_DENIED = 49,
TLS_ALERT_DESC_DECODE_ERROR = 50,
TLS_ALERT_DESC_DECRYPT_ERROR = 51,
TLS_ALERT_DESC_TOO_MANY_CIDS_REQUESTED = 52,
TLS_ALERT_DESC_PROTOCOL_VERSION = 70,
TLS_ALERT_DESC_INSUFFICIENT_SECURITY = 71,
TLS_ALERT_DESC_INTERNAL_ERROR = 80,
TLS_ALERT_DESC_INAPPROPRIATE_FALLBACK = 86,
TLS_ALERT_DESC_USER_CANCELED = 90,
TLS_ALERT_DESC_MISSING_EXTENSION = 109,
TLS_ALERT_DESC_UNSUPPORTED_EXTENSION = 110,
TLS_ALERT_DESC_UNRECOGNIZED_NAME = 112,
TLS_ALERT_DESC_BAD_CERTIFICATE_STATUS_RESPONSE = 113,
TLS_ALERT_DESC_UNKNOWN_PSK_IDENTITY = 115,
TLS_ALERT_DESC_CERTIFICATE_REQUIRED = 116,
TLS_ALERT_DESC_NO_APPLICATION_PROTOCOL = 120,
};
#endif /* _TLS_PROT_H */