82ab6b505e
These selftests are written in prog_tests style instead of adding them to the existing test_sock_addr tests. Migrating the existing sock addr tests to prog_tests style is left for future work. This commit adds support for testing bind() sockaddr hooks, even though there's no unix socket sockaddr hook for bind(). We leave this code intact for when the INET and INET6 tests are migrated in the future which do support intercepting bind(). Signed-off-by: Daan De Meyer <daan.j.demeyer@gmail.com> Link: https://lore.kernel.org/r/20231011185113.140426-10-daan.j.demeyer@gmail.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
#ifndef __BPF_KFUNCS__
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#define __BPF_KFUNCS__
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struct bpf_sock_addr_kern;
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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;
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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;
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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;
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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;
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extern int bpf_dynptr_adjust(const struct bpf_dynptr *ptr, __u32 start, __u32 end) __ksym;
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extern bool bpf_dynptr_is_null(const struct bpf_dynptr *ptr) __ksym;
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extern bool bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym;
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extern __u32 bpf_dynptr_size(const struct bpf_dynptr *ptr) __ksym;
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extern int bpf_dynptr_clone(const struct bpf_dynptr *ptr, struct bpf_dynptr *clone__init) __ksym;
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/* Description
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* Modify the address of a AF_UNIX sockaddr.
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* Returns__bpf_kfunc
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* -EINVAL if the address size is too big or, 0 if the sockaddr was successfully modified.
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*/
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extern int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern,
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const __u8 *sun_path, __u32 sun_path__sz) __ksym;
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void *bpf_cast_to_kern_ctx(void *) __ksym;
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void *bpf_rdonly_cast(void *obj, __u32 btf_id) __ksym;
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#endif
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