51 lines
1.8 KiB
C
51 lines
1.8 KiB
C
#ifndef __BPF_KFUNCS__
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#define __BPF_KFUNCS__
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/* Description
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* Initializes an skb-type dynptr
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* Returns
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* Error code
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*/
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extern int bpf_dynptr_from_skb(struct __sk_buff *skb, __u64 flags,
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struct bpf_dynptr *ptr__uninit) __ksym __weak;
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/* Description
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* Initializes an xdp-type dynptr
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* Returns
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* Error code
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*/
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extern int bpf_dynptr_from_xdp(struct xdp_md *xdp, __u64 flags,
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struct bpf_dynptr *ptr__uninit) __ksym __weak;
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/* Description
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* Obtain a read-only pointer to the dynptr's data
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* Returns
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* Either a direct pointer to the dynptr data or a pointer to the user-provided
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* buffer if unable to obtain a direct pointer
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*/
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extern void *bpf_dynptr_slice(const struct bpf_dynptr *ptr, __u32 offset,
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void *buffer, __u32 buffer__szk) __ksym __weak;
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/* Description
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* Obtain a read-write pointer to the dynptr's data
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* Returns
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* Either a direct pointer to the dynptr data or a pointer to the user-provided
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* buffer if unable to obtain a direct pointer
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*/
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extern void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr *ptr, __u32 offset,
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void *buffer, __u32 buffer__szk) __ksym __weak;
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extern int bpf_dynptr_adjust(const struct bpf_dynptr *ptr, __u32 start, __u32 end) __ksym __weak;
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extern bool bpf_dynptr_is_null(const struct bpf_dynptr *ptr) __ksym __weak;
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extern bool bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym __weak;
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extern __u32 bpf_dynptr_size(const struct bpf_dynptr *ptr) __ksym __weak;
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extern int bpf_dynptr_clone(const struct bpf_dynptr *ptr, struct bpf_dynptr *clone__init) __ksym __weak;
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void *bpf_cast_to_kern_ctx(void *) __ksym;
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extern void *bpf_rdonly_cast(const void *obj, __u32 btf_id) __ksym __weak;
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extern bool bpf_session_is_return(void) __ksym __weak;
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extern __u64 *bpf_session_cookie(void) __ksym __weak;
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#endif
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