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c3db467b08
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct clip_tbl. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Raju Rangoju <rajur@chelsio.com> Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20230929181149.3006432-2-keescook@chromium.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/*
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* This file is part of the Chelsio T4 Ethernet driver for Linux.
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* Copyright (C) 2003-2014 Chelsio Communications. All rights reserved.
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*
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* Written by Deepak (deepak.s@chelsio.com)
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the LICENSE file included in this
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* release for licensing terms and conditions.
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*/
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#include <linux/refcount.h>
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struct clip_entry {
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spinlock_t lock; /* Hold while modifying clip reference */
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refcount_t refcnt;
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struct list_head list;
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union {
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struct sockaddr_in addr;
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struct sockaddr_in6 addr6;
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};
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};
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struct clip_tbl {
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unsigned int clipt_start;
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unsigned int clipt_size;
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rwlock_t lock;
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atomic_t nfree;
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struct list_head ce_free_head;
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void *cl_list;
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struct list_head hash_list[] __counted_by(clipt_size);
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};
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enum {
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CLIPT_MIN_HASH_BUCKETS = 2,
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};
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struct clip_tbl *t4_init_clip_tbl(unsigned int clipt_start,
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unsigned int clipt_end);
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int cxgb4_clip_get(const struct net_device *dev, const u32 *lip, u8 v6);
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void cxgb4_clip_release(const struct net_device *dev, const u32 *lip, u8 v6);
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int clip_tbl_show(struct seq_file *seq, void *v);
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int cxgb4_update_root_dev_clip(struct net_device *dev);
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void t4_cleanup_clip_tbl(struct adapter *adap);
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