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93 lines
2.3 KiB
93 lines
2.3 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __SOCK_DIAG_H__ |
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#define __SOCK_DIAG_H__ |
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#include <linux/netlink.h> |
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#include <linux/user_namespace.h> |
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#include <net/net_namespace.h> |
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#include <net/sock.h> |
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#include <uapi/linux/sock_diag.h> |
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struct sk_buff; |
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struct nlmsghdr; |
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struct sock; |
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struct sock_diag_handler { |
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__u8 family; |
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int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh); |
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int (*get_info)(struct sk_buff *skb, struct sock *sk); |
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int (*destroy)(struct sk_buff *skb, struct nlmsghdr *nlh); |
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}; |
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int sock_diag_register(const struct sock_diag_handler *h); |
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void sock_diag_unregister(const struct sock_diag_handler *h); |
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void sock_diag_register_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh)); |
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void sock_diag_unregister_inet_compat(int (*fn)(struct sk_buff *skb, struct nlmsghdr *nlh)); |
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u64 __sock_gen_cookie(struct sock *sk); |
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static inline u64 sock_gen_cookie(struct sock *sk) |
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{ |
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u64 cookie; |
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preempt_disable(); |
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cookie = __sock_gen_cookie(sk); |
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preempt_enable(); |
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return cookie; |
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} |
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int sock_diag_check_cookie(struct sock *sk, const __u32 *cookie); |
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void sock_diag_save_cookie(struct sock *sk, __u32 *cookie); |
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int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attr); |
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int sock_diag_put_filterinfo(bool may_report_filterinfo, struct sock *sk, |
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struct sk_buff *skb, int attrtype); |
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static inline |
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enum sknetlink_groups sock_diag_destroy_group(const struct sock *sk) |
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{ |
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switch (sk->sk_family) { |
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case AF_INET: |
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if (sk->sk_type == SOCK_RAW) |
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return SKNLGRP_NONE; |
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switch (sk->sk_protocol) { |
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case IPPROTO_TCP: |
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return SKNLGRP_INET_TCP_DESTROY; |
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case IPPROTO_UDP: |
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return SKNLGRP_INET_UDP_DESTROY; |
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default: |
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return SKNLGRP_NONE; |
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} |
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case AF_INET6: |
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if (sk->sk_type == SOCK_RAW) |
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return SKNLGRP_NONE; |
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switch (sk->sk_protocol) { |
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case IPPROTO_TCP: |
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return SKNLGRP_INET6_TCP_DESTROY; |
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case IPPROTO_UDP: |
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return SKNLGRP_INET6_UDP_DESTROY; |
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default: |
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return SKNLGRP_NONE; |
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} |
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default: |
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return SKNLGRP_NONE; |
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} |
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} |
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static inline |
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bool sock_diag_has_destroy_listeners(const struct sock *sk) |
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{ |
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const struct net *n = sock_net(sk); |
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const enum sknetlink_groups group = sock_diag_destroy_group(sk); |
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return group != SKNLGRP_NONE && n->diag_nlsk && |
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netlink_has_listeners(n->diag_nlsk, group); |
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} |
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void sock_diag_broadcast_destroy(struct sock *sk); |
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int sock_diag_destroy(struct sock *sk, int err); |
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#endif
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