46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _SKB_TRACER_H
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#define _SKB_TRACER_H
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#include <linux/kernel.h>
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struct sk_buff;
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struct sock;
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struct spinlock_t;
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struct skb_tracer {
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u64 queue_mask;
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u64 sock_mask;
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u64 skb_mask;
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spinlock_t lock; /* TODO: really need this? */
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};
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#define ID_TO_MASK(id) (1 << id)
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enum skb_tracer_location {
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STL_TCP_TRANSMIT_SKB = ID_TO_MASK(0),
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STL_TCP_WRITE_XMIT = ID_TO_MASK(1),
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STL___IP_QUEUE_XMIT = ID_TO_MASK(2),
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STL___IP_LOCAL_OUT = ID_TO_MASK(3),
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STL_IP6_OUTPUT = ID_TO_MASK(4),
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STL_IP_OUTPUT = ID_TO_MASK(5),
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STL_IP6_FINISH_OUTPUT2 = ID_TO_MASK(6),
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STL_IP6_XMIT_01 = ID_TO_MASK(7),
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STL_IP6_XMIT_02 = ID_TO_MASK(8),
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};
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void skb_tracer_func_trace(const struct sock *sk, struct sk_buff *skb,
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enum skb_tracer_location location);
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void skb_tracer_mask_on_skb(struct sock *sk, struct sk_buff *skb);
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void skb_tracer_mask(struct sk_buff *skb, u64 mask);
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void skb_tracer_unmask(struct sk_buff *skb, u64 mask);
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void skb_tracer_return_mask(struct sock *sk);
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void skb_tracer_sk_error_report(struct sock *sk);
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void skb_tracer_init(struct sock *sk);
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#endif /* _SKB_TRACER_H */
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