| #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 |
