/* * linux/net/sunrpc/gss_krb5_seqnum.c * * Adapted from MIT Kerberos 5-1.2.1 lib/gssapi/krb5/util_seqnum.c * * Copyright (c) 2000 The Regents of the University of Michigan. * All rights reserved. * * Andy Adamson */ /* * Copyright 1993 by OpenVision Technologies, Inc. * * Permission to use, copy, modify, distribute, and sell this software * and its documentation for any purpose is hereby granted without fee, * provided that the above copyright notice appears in all copies and * that both that copyright notice and this permission notice appear in * supporting documentation, and that the name of OpenVision not be used * in advertising or publicity pertaining to distribution of the software * without specific, written prior permission. OpenVision makes no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied warranty. * * OPENVISION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL OPENVISION BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF * USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #include #include #include #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) # define RPCDBG_FACILITY RPCDBG_AUTH #endif static s32 krb5_make_rc4_seq_num(struct krb5_ctx *kctx, int direction, s32 seqnum, unsigned char *cksum, unsigned char *buf) { struct crypto_skcipher *cipher; unsigned char plain[8]; s32 code; dprintk("RPC: %s:\n", __func__); cipher = crypto_alloc_skcipher(kctx->gk5e->encrypt_name, 0, CRYPTO_ALG_ASYNC); if (IS_ERR(cipher)) return PTR_ERR(cipher); plain[0] = (unsigned char) ((seqnum >> 24) & 0xff); plain[1] = (unsigned char) ((seqnum >> 16) & 0xff); plain[2] = (unsigned char) ((seqnum >> 8) & 0xff); plain[3] = (unsigned char) ((seqnum >> 0) & 0xff); plain[4] = direction; plain[5] = direction; plain[6] = direction; plain[7] = direction; code = krb5_rc4_setup_seq_key(kctx, cipher, cksum); if (code) goto out; code = krb5_encrypt(cipher, cksum, plain, buf, 8); out: crypto_free_skcipher(cipher); return code; } s32 krb5_make_seq_num(struct krb5_ctx *kctx, struct crypto_skcipher *key, int direction, u32 seqnum, unsigned char *cksum, unsigned char *buf) { unsigned char plain[8]; if (kctx->enctype == ENCTYPE_ARCFOUR_HMAC) return krb5_make_rc4_seq_num(kctx, direction, seqnum, cksum, buf); plain[0] = (unsigned char) (seqnum & 0xff); plain[1] = (unsigned char) ((seqnum >> 8) & 0xff); plain[2] = (unsigned char) ((seqnum >> 16) & 0xff); plain[3] = (unsigned char) ((seqnum >> 24) & 0xff); plain[4] = direction; plain[5] = direction; plain[6] = direction; plain[7] = direction; return krb5_encrypt(key, cksum, plain, buf, 8); } static s32 krb5_get_rc4_seq_num(struct krb5_ctx *kctx, unsigned char *cksum, unsigned char *buf, int *direction, s32 *seqnum) { struct crypto_skcipher *cipher; unsigned char plain[8]; s32 code; dprintk("RPC: %s:\n", __func__); cipher = crypto_alloc_skcipher(kctx->gk5e->encrypt_name, 0, CRYPTO_ALG_ASYNC); if (IS_ERR(cipher)) return PTR_ERR(cipher); code = krb5_rc4_setup_seq_key(kctx, cipher, cksum); if (code) goto out; code = krb5_decrypt(cipher, cksum, buf, plain, 8); if (code) goto out; if ((plain[4] != plain[5]) || (plain[4] != plain[6]) || (plain[4] != plain[7])) { code = (s32)KG_BAD_SEQ; goto out; } *direction = plain[4]; *seqnum = ((plain[0] << 24) | (plain[1] << 16) | (plain[2] << 8) | (plain[3])); out: crypto_free_skcipher(cipher); return code; } s32 krb5_get_seq_num(struct krb5_ctx *kctx, unsigned char *cksum, unsigned char *buf, int *direction, u32 *seqnum) { s32 code; unsigned char plain[8]; struct crypto_skcipher *key = kctx->seq; dprintk("RPC: krb5_get_seq_num:\n"); if (kctx->enctype == ENCTYPE_ARCFOUR_HMAC) return krb5_get_rc4_seq_num(kctx, cksum, buf, direction, seqnum); if ((code = krb5_decrypt(key, cksum, buf, plain, 8))) return code; if ((plain[4] != plain[5]) || (plain[4] != plain[6]) || (plain[4] != plain[7])) return (s32)KG_BAD_SEQ; *direction = plain[4]; *seqnum = ((plain[0]) | (plain[1] << 8) | (plain[2] << 16) | (plain[3] << 24)); return 0; } oad'/>
authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-03 13:46:38 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-03 13:46:38 -0800
commit3f67790d2b7e322bcf363ec717085dd78c3ea7cd (patch)
tree7be20232078a2e801ed93bcdb72f0d955dd9836f /drivers/usb/host/fhci-hcd.c
parentcd44691f7177b2c1e1509d1a17d9b198ebaa34eb (diff)
parent206c4720092d2a24bfefc041b377e889a220ffbf (diff)
Merge tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown: "Three changes here: two run of the mill driver specific fixes and a change from Mark Rutland which reverts some new device specific ACPI binding code which was added during the merge window as there are concerns about this sending the wrong signal about usage of regulators in ACPI systems" * tag 'regulator-fix-v4.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: fixed: Revert support for ACPI interface regulator: axp20x: AXP806: Fix dcdcb being set instead of dcdce regulator: twl6030: fix range comparison, allowing vsel = 59
Diffstat (limited to 'drivers/usb/host/fhci-hcd.c')