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432490f9d4
In criu we are actively using diag interface to collect sockets present in the system when dumping applications. And while for unix, tcp, udp[lite], packet, netlink it works as expected, the raw sockets do not have. Thus add it. v2: - add missing sock_put calls in raw_diag_dump_one (by eric.dumazet@) - implement @destroy for diag requests (by dsa@) v3: - add export of raw_abort for IPv6 (by dsa@) - pass net-admin flag into inet_sk_diag_fill due to changes in net-next branch (by dsa@) v4: - use @pad in struct inet_diag_req_v2 for raw socket protocol specification: raw module carries sockets which may have custom protocol passed from socket() syscall and sole @sdiag_protocol is not enough to match underlied ones - start reporting protocol specifed in socket() call when sockets are raw ones for the same reason: user space tools like ss may parse this attribute and use it for socket matching v5 (by eric.dumazet@): - use sock_hold in raw_sock_get instead of atomic_inc, we're holding (raw_v4_hashinfo|raw_v6_hashinfo)->lock when looking up so counter won't be zero here. v6: - use sdiag_raw_protocol() helper which will access @pad structure used for raw sockets protocol specification: we can't simply rename this member without breaking uapi v7: - sine sdiag_raw_protocol() helper is not suitable for uapi lets rather make an alias structure with proper names. __check_inet_diag_req_raw helper will catch if any of structure unintentionally changed. CC: David S. Miller <davem@davemloft.net> CC: Eric Dumazet <eric.dumazet@gmail.com> CC: David Ahern <dsa@cumulusnetworks.com> CC: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru> CC: James Morris <jmorris@namei.org> CC: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org> CC: Patrick McHardy <kaber@trash.net> CC: Andrey Vagin <avagin@openvz.org> CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
82 lines
2.1 KiB
C
82 lines
2.1 KiB
C
/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the RAW-IP module.
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*
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* Version: @(#)raw.h 1.0.2 05/07/93
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*
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* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _RAW_H
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#define _RAW_H
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#include <net/protocol.h>
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#include <linux/icmp.h>
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extern struct proto raw_prot;
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extern struct raw_hashinfo raw_v4_hashinfo;
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struct sock *__raw_v4_lookup(struct net *net, struct sock *sk,
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unsigned short num, __be32 raddr,
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__be32 laddr, int dif);
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int raw_abort(struct sock *sk, int err);
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void raw_icmp_error(struct sk_buff *, int, u32);
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int raw_local_deliver(struct sk_buff *, int);
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int raw_rcv(struct sock *, struct sk_buff *);
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#define RAW_HTABLE_SIZE MAX_INET_PROTOS
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struct raw_hashinfo {
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rwlock_t lock;
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struct hlist_head ht[RAW_HTABLE_SIZE];
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};
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#ifdef CONFIG_PROC_FS
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int raw_proc_init(void);
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void raw_proc_exit(void);
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struct raw_iter_state {
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struct seq_net_private p;
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int bucket;
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struct raw_hashinfo *h;
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};
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static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
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{
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return seq->private;
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}
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void *raw_seq_start(struct seq_file *seq, loff_t *pos);
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void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
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void raw_seq_stop(struct seq_file *seq, void *v);
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int raw_seq_open(struct inode *ino, struct file *file,
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struct raw_hashinfo *h, const struct seq_operations *ops);
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#endif
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int raw_hash_sk(struct sock *sk);
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void raw_unhash_sk(struct sock *sk);
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struct raw_sock {
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/* inet_sock has to be the first member */
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struct inet_sock inet;
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struct icmp_filter filter;
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u32 ipmr_table;
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};
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static inline struct raw_sock *raw_sk(const struct sock *sk)
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{
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return (struct raw_sock *)sk;
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}
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#endif /* _RAW_H */
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