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e8660ded7f
Commitccfdec9089("macsec: Add support for GCM-AES-256 cipher suite") changed a few values in the uapi headers for MACsec. Because of existing userspace implementations, we need to preserve the value of MACSEC_DEFAULT_CIPHER_ID. Not doing that resulted in wpa_supplicant segfaults when a secure channel was created using the default cipher. Thus, swap MACSEC_DEFAULT_CIPHER_{ID,ALT} back to their original values. Changing the maximum length of the MACSEC_SA_ATTR_KEY attribute is unnecessary, as the previous value (MACSEC_MAX_KEY_LEN, which was 128B) is large enough to carry 32-bytes keys. This patch reverts MACSEC_MAX_KEY_LEN to 128B and restores the old length check on MACSEC_SA_ATTR_KEY. Fixes:ccfdec9089("macsec: Add support for GCM-AES-256 cipher suite") Signed-off-by: Davide Caratti <dcaratti@redhat.com> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
178 lines
5.7 KiB
C
178 lines
5.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* include/uapi/linux/if_macsec.h - MACsec device
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*
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* Copyright (c) 2015 Sabrina Dubroca <sd@queasysnail.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef _UAPI_MACSEC_H
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#define _UAPI_MACSEC_H
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#include <linux/types.h>
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#define MACSEC_GENL_NAME "macsec"
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#define MACSEC_GENL_VERSION 1
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#define MACSEC_MAX_KEY_LEN 128
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#define MACSEC_KEYID_LEN 16
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/* cipher IDs as per IEEE802.1AEbn-2011 */
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#define MACSEC_CIPHER_ID_GCM_AES_128 0x0080C20001000001ULL
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#define MACSEC_CIPHER_ID_GCM_AES_256 0x0080C20001000002ULL
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/* deprecated cipher ID for GCM-AES-128 */
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#define MACSEC_DEFAULT_CIPHER_ID 0x0080020001000001ULL
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#define MACSEC_DEFAULT_CIPHER_ALT MACSEC_CIPHER_ID_GCM_AES_128
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#define MACSEC_MIN_ICV_LEN 8
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#define MACSEC_MAX_ICV_LEN 32
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/* upper limit for ICV length as recommended by IEEE802.1AE-2006 */
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#define MACSEC_STD_ICV_LEN 16
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enum macsec_attrs {
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MACSEC_ATTR_UNSPEC,
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MACSEC_ATTR_IFINDEX, /* u32, ifindex of the MACsec netdevice */
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MACSEC_ATTR_RXSC_CONFIG, /* config, nested macsec_rxsc_attrs */
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MACSEC_ATTR_SA_CONFIG, /* config, nested macsec_sa_attrs */
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MACSEC_ATTR_SECY, /* dump, nested macsec_secy_attrs */
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MACSEC_ATTR_TXSA_LIST, /* dump, nested, macsec_sa_attrs for each TXSA */
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MACSEC_ATTR_RXSC_LIST, /* dump, nested, macsec_rxsc_attrs for each RXSC */
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MACSEC_ATTR_TXSC_STATS, /* dump, nested, macsec_txsc_stats_attr */
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MACSEC_ATTR_SECY_STATS, /* dump, nested, macsec_secy_stats_attr */
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__MACSEC_ATTR_END,
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NUM_MACSEC_ATTR = __MACSEC_ATTR_END,
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MACSEC_ATTR_MAX = __MACSEC_ATTR_END - 1,
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};
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enum macsec_secy_attrs {
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MACSEC_SECY_ATTR_UNSPEC,
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MACSEC_SECY_ATTR_SCI,
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MACSEC_SECY_ATTR_ENCODING_SA,
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MACSEC_SECY_ATTR_WINDOW,
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MACSEC_SECY_ATTR_CIPHER_SUITE,
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MACSEC_SECY_ATTR_ICV_LEN,
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MACSEC_SECY_ATTR_PROTECT,
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MACSEC_SECY_ATTR_REPLAY,
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MACSEC_SECY_ATTR_OPER,
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MACSEC_SECY_ATTR_VALIDATE,
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MACSEC_SECY_ATTR_ENCRYPT,
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MACSEC_SECY_ATTR_INC_SCI,
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MACSEC_SECY_ATTR_ES,
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MACSEC_SECY_ATTR_SCB,
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MACSEC_SECY_ATTR_PAD,
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__MACSEC_SECY_ATTR_END,
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NUM_MACSEC_SECY_ATTR = __MACSEC_SECY_ATTR_END,
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MACSEC_SECY_ATTR_MAX = __MACSEC_SECY_ATTR_END - 1,
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};
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enum macsec_rxsc_attrs {
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MACSEC_RXSC_ATTR_UNSPEC,
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MACSEC_RXSC_ATTR_SCI, /* config/dump, u64 */
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MACSEC_RXSC_ATTR_ACTIVE, /* config/dump, u8 0..1 */
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MACSEC_RXSC_ATTR_SA_LIST, /* dump, nested */
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MACSEC_RXSC_ATTR_STATS, /* dump, nested, macsec_rxsc_stats_attr */
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MACSEC_RXSC_ATTR_PAD,
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__MACSEC_RXSC_ATTR_END,
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NUM_MACSEC_RXSC_ATTR = __MACSEC_RXSC_ATTR_END,
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MACSEC_RXSC_ATTR_MAX = __MACSEC_RXSC_ATTR_END - 1,
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};
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enum macsec_sa_attrs {
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MACSEC_SA_ATTR_UNSPEC,
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MACSEC_SA_ATTR_AN, /* config/dump, u8 0..3 */
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MACSEC_SA_ATTR_ACTIVE, /* config/dump, u8 0..1 */
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MACSEC_SA_ATTR_PN, /* config/dump, u32 */
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MACSEC_SA_ATTR_KEY, /* config, data */
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MACSEC_SA_ATTR_KEYID, /* config/dump, 128-bit */
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MACSEC_SA_ATTR_STATS, /* dump, nested, macsec_sa_stats_attr */
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MACSEC_SA_ATTR_PAD,
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__MACSEC_SA_ATTR_END,
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NUM_MACSEC_SA_ATTR = __MACSEC_SA_ATTR_END,
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MACSEC_SA_ATTR_MAX = __MACSEC_SA_ATTR_END - 1,
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};
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enum macsec_nl_commands {
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MACSEC_CMD_GET_TXSC,
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MACSEC_CMD_ADD_RXSC,
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MACSEC_CMD_DEL_RXSC,
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MACSEC_CMD_UPD_RXSC,
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MACSEC_CMD_ADD_TXSA,
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MACSEC_CMD_DEL_TXSA,
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MACSEC_CMD_UPD_TXSA,
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MACSEC_CMD_ADD_RXSA,
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MACSEC_CMD_DEL_RXSA,
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MACSEC_CMD_UPD_RXSA,
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};
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/* u64 per-RXSC stats */
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enum macsec_rxsc_stats_attr {
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MACSEC_RXSC_STATS_ATTR_UNSPEC,
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MACSEC_RXSC_STATS_ATTR_IN_OCTETS_VALIDATED,
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MACSEC_RXSC_STATS_ATTR_IN_OCTETS_DECRYPTED,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNCHECKED,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_DELAYED,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_OK,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_INVALID,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_LATE,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_VALID,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_USING_SA,
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MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNUSED_SA,
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MACSEC_RXSC_STATS_ATTR_PAD,
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__MACSEC_RXSC_STATS_ATTR_END,
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NUM_MACSEC_RXSC_STATS_ATTR = __MACSEC_RXSC_STATS_ATTR_END,
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MACSEC_RXSC_STATS_ATTR_MAX = __MACSEC_RXSC_STATS_ATTR_END - 1,
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};
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/* u32 per-{RX,TX}SA stats */
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enum macsec_sa_stats_attr {
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MACSEC_SA_STATS_ATTR_UNSPEC,
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MACSEC_SA_STATS_ATTR_IN_PKTS_OK,
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MACSEC_SA_STATS_ATTR_IN_PKTS_INVALID,
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MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_VALID,
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MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_USING_SA,
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MACSEC_SA_STATS_ATTR_IN_PKTS_UNUSED_SA,
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MACSEC_SA_STATS_ATTR_OUT_PKTS_PROTECTED,
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MACSEC_SA_STATS_ATTR_OUT_PKTS_ENCRYPTED,
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__MACSEC_SA_STATS_ATTR_END,
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NUM_MACSEC_SA_STATS_ATTR = __MACSEC_SA_STATS_ATTR_END,
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MACSEC_SA_STATS_ATTR_MAX = __MACSEC_SA_STATS_ATTR_END - 1,
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};
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/* u64 per-TXSC stats */
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enum macsec_txsc_stats_attr {
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MACSEC_TXSC_STATS_ATTR_UNSPEC,
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MACSEC_TXSC_STATS_ATTR_OUT_PKTS_PROTECTED,
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MACSEC_TXSC_STATS_ATTR_OUT_PKTS_ENCRYPTED,
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MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_PROTECTED,
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MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_ENCRYPTED,
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MACSEC_TXSC_STATS_ATTR_PAD,
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__MACSEC_TXSC_STATS_ATTR_END,
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NUM_MACSEC_TXSC_STATS_ATTR = __MACSEC_TXSC_STATS_ATTR_END,
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MACSEC_TXSC_STATS_ATTR_MAX = __MACSEC_TXSC_STATS_ATTR_END - 1,
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};
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/* u64 per-SecY stats */
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enum macsec_secy_stats_attr {
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MACSEC_SECY_STATS_ATTR_UNSPEC,
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MACSEC_SECY_STATS_ATTR_OUT_PKTS_UNTAGGED,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_UNTAGGED,
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MACSEC_SECY_STATS_ATTR_OUT_PKTS_TOO_LONG,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_TAG,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_BAD_TAG,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_UNKNOWN_SCI,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_SCI,
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MACSEC_SECY_STATS_ATTR_IN_PKTS_OVERRUN,
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MACSEC_SECY_STATS_ATTR_PAD,
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__MACSEC_SECY_STATS_ATTR_END,
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NUM_MACSEC_SECY_STATS_ATTR = __MACSEC_SECY_STATS_ATTR_END,
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MACSEC_SECY_STATS_ATTR_MAX = __MACSEC_SECY_STATS_ATTR_END - 1,
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};
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#endif /* _UAPI_MACSEC_H */
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