diff options
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_kfuncs.h')
-rw-r--r-- | tools/testing/selftests/bpf/bpf_kfuncs.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h new file mode 100644 index 0000000000..642dda0e75 --- /dev/null +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -0,0 +1,44 @@ +#ifndef __BPF_KFUNCS__ +#define __BPF_KFUNCS__ + +/* Description + * Initializes an skb-type dynptr + * Returns + * Error code + */ +extern int bpf_dynptr_from_skb(struct __sk_buff *skb, __u64 flags, + struct bpf_dynptr *ptr__uninit) __ksym; + +/* Description + * Initializes an xdp-type dynptr + * Returns + * Error code + */ +extern int bpf_dynptr_from_xdp(struct xdp_md *xdp, __u64 flags, + struct bpf_dynptr *ptr__uninit) __ksym; + +/* Description + * Obtain a read-only pointer to the dynptr's data + * Returns + * Either a direct pointer to the dynptr data or a pointer to the user-provided + * buffer if unable to obtain a direct pointer + */ +extern void *bpf_dynptr_slice(const struct bpf_dynptr *ptr, __u32 offset, + void *buffer, __u32 buffer__szk) __ksym; + +/* Description + * Obtain a read-write pointer to the dynptr's data + * Returns + * Either a direct pointer to the dynptr data or a pointer to the user-provided + * buffer if unable to obtain a direct pointer + */ +extern void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr *ptr, __u32 offset, + void *buffer, __u32 buffer__szk) __ksym; + +extern int bpf_dynptr_adjust(const struct bpf_dynptr *ptr, __u32 start, __u32 end) __ksym; +extern bool bpf_dynptr_is_null(const struct bpf_dynptr *ptr) __ksym; +extern bool bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym; +extern __u32 bpf_dynptr_size(const struct bpf_dynptr *ptr) __ksym; +extern int bpf_dynptr_clone(const struct bpf_dynptr *ptr, struct bpf_dynptr *clone__init) __ksym; + +#endif |