bpf: Make btf_sock_ids global
tcp and udp bpf_iter can reuse some socket ids in btf_sock_ids, so make it global. I put the extern definition in btf_ids.h as a central place so it can be easily discovered by developers. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200720163402.1393427-1-yhs@fb.com
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@ -97,4 +97,34 @@ asm( \
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#endif /* CONFIG_DEBUG_INFO_BTF */
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#ifdef CONFIG_NET
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/* Define a list of socket types which can be the argument for
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* skc_to_*_sock() helpers. All these sockets should have
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* sock_common as the first argument in its memory layout.
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*/
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#define BTF_SOCK_TYPE_xxx \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET, inet_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_CONN, inet_connection_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_REQ, inet_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_TW, inet_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_REQ, request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK, sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK_COMMON, sock_common) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP, tcp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_REQ, tcp_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_TW, tcp_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP6, tcp6_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP, udp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP6, udp6_sock)
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enum {
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#define BTF_SOCK_TYPE(name, str) name,
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BTF_SOCK_TYPE_xxx
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#undef BTF_SOCK_TYPE
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MAX_BTF_SOCK_TYPE,
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};
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extern u32 btf_sock_ids[];
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#endif
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#endif
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@ -9421,39 +9421,13 @@ void bpf_prog_change_xdp(struct bpf_prog *prev_prog, struct bpf_prog *prog)
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bpf_dispatcher_change_prog(BPF_DISPATCHER_PTR(xdp), prev_prog, prog);
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}
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/* Define a list of socket types which can be the argument for
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* skc_to_*_sock() helpers. All these sockets should have
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* sock_common as the first argument in its memory layout.
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*/
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#define BTF_SOCK_TYPE_xxx \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET, inet_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_CONN, inet_connection_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_REQ, inet_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_TW, inet_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_REQ, request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK, sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK_COMMON, sock_common) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP, tcp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_REQ, tcp_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_TW, tcp_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP6, tcp6_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP, udp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP6, udp6_sock)
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enum {
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#define BTF_SOCK_TYPE(name, str) name,
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BTF_SOCK_TYPE_xxx
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#undef BTF_SOCK_TYPE
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MAX_BTF_SOCK_TYPE,
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};
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#ifdef CONFIG_DEBUG_INFO_BTF
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BTF_ID_LIST(btf_sock_ids)
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BTF_ID_LIST_GLOBAL(btf_sock_ids)
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#define BTF_SOCK_TYPE(name, type) BTF_ID(struct, type)
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BTF_SOCK_TYPE_xxx
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#undef BTF_SOCK_TYPE
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#else
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static u32 btf_sock_ids[MAX_BTF_SOCK_TYPE];
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u32 btf_sock_ids[MAX_BTF_SOCK_TYPE];
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#endif
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static bool check_arg_btf_id(u32 btf_id, u32 arg)
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@ -97,4 +97,34 @@ asm( \
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#endif /* CONFIG_DEBUG_INFO_BTF */
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#ifdef CONFIG_NET
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/* Define a list of socket types which can be the argument for
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* skc_to_*_sock() helpers. All these sockets should have
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* sock_common as the first argument in its memory layout.
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*/
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#define BTF_SOCK_TYPE_xxx \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET, inet_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_CONN, inet_connection_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_REQ, inet_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_INET_TW, inet_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_REQ, request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK, sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_SOCK_COMMON, sock_common) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP, tcp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_REQ, tcp_request_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP_TW, tcp_timewait_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_TCP6, tcp6_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP, udp_sock) \
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BTF_SOCK_TYPE(BTF_SOCK_TYPE_UDP6, udp6_sock)
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enum {
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#define BTF_SOCK_TYPE(name, str) name,
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BTF_SOCK_TYPE_xxx
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#undef BTF_SOCK_TYPE
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MAX_BTF_SOCK_TYPE,
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};
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extern u32 btf_sock_ids[];
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#endif
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#endif
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