e6550b3ee1
Based on the normalized pattern:
this program is free software you may redistribute it and/or modify it
under the terms of the gnu general public license as published by the
free software foundation version 2 of the license the software is
provided as is without warranty of any kind express or implied
including but not limited to the warranties of merchantability fitness
for a particular purpose and noninfringement in no event shall the
authors or copyright holders be liable for any claim damages or other
liability whether in an action of contract tort or otherwise arising
from out of or in connection with the software or the use or other
dealings in the software
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.4 KiB
C
65 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// Copyright 2010 Cisco Systems, Inc. All rights reserved.
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include "vnic_vic.h"
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struct vic_provinfo *vic_provinfo_alloc(gfp_t flags, const u8 *oui,
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const u8 type)
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{
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struct vic_provinfo *vp;
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if (!oui)
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return NULL;
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vp = kzalloc(VIC_PROVINFO_MAX_DATA, flags);
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if (!vp)
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return NULL;
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memcpy(vp->oui, oui, sizeof(vp->oui));
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vp->type = type;
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vp->length = htonl(sizeof(vp->num_tlvs));
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return vp;
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}
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void vic_provinfo_free(struct vic_provinfo *vp)
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{
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kfree(vp);
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}
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int vic_provinfo_add_tlv(struct vic_provinfo *vp, u16 type, u16 length,
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const void *value)
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{
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struct vic_provinfo_tlv *tlv;
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if (!vp || !value)
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return -EINVAL;
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if (ntohl(vp->length) + offsetof(struct vic_provinfo_tlv, value) +
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length > VIC_PROVINFO_MAX_TLV_DATA)
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return -ENOMEM;
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tlv = (struct vic_provinfo_tlv *)((u8 *)vp->tlv +
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ntohl(vp->length) - sizeof(vp->num_tlvs));
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tlv->type = htons(type);
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tlv->length = htons(length);
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memcpy(tlv->value, value, length);
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vp->num_tlvs = htonl(ntohl(vp->num_tlvs) + 1);
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vp->length = htonl(ntohl(vp->length) +
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offsetof(struct vic_provinfo_tlv, value) + length);
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return 0;
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}
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size_t vic_provinfo_size(struct vic_provinfo *vp)
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{
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return vp ? ntohl(vp->length) + sizeof(*vp) - sizeof(vp->num_tlvs) : 0;
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}
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