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Release 4.11 net/ipv4/tcp_diag.c

Directory: net/ipv4
/*
 * tcp_diag.c   Module for monitoring TCP transport protocols sockets.
 *
 * Authors:     Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */

#include <linux/module.h>
#include <linux/net.h>
#include <linux/sock_diag.h>
#include <linux/inet_diag.h>

#include <linux/tcp.h>

#include <net/tcp.h>


static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r, void *_info) { struct tcp_info *info = _info; if (sk_state_load(sk) == TCP_LISTEN) { r->idiag_rqueue = sk->sk_ack_backlog; r->idiag_wqueue = sk->sk_max_ack_backlog; } else if (sk->sk_type == SOCK_STREAM) { const struct tcp_sock *tp = tcp_sk(sk); r->idiag_rqueue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0); r->idiag_wqueue = tp->write_seq - tp->snd_una; } if (info) tcp_get_info(sk, info); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo6252.54%116.67%
Craig Gallek2016.95%116.67%
Sridhar Samudrala1411.86%116.67%
Rick Jones1210.17%116.67%
Eric Dumazet108.47%233.33%
Total118100.00%6100.00%


static void tcp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb, const struct inet_diag_req_v2 *r, struct nlattr *bc) { inet_diag_dump_icsk(&tcp_hashinfo, skb, cb, r, bc); }

Contributors

PersonTokensPropCommitsCommitProp
Pavel Emelyanov4097.56%266.67%
Eric Dumazet12.44%133.33%
Total41100.00%3100.00%


static int tcp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh, const struct inet_diag_req_v2 *req) { return inet_diag_dump_one_icsk(&tcp_hashinfo, in_skb, nlh, req); }

Contributors

PersonTokensPropCommitsCommitProp
Pavel Emelyanov3597.22%266.67%
Eric Dumazet12.78%133.33%
Total36100.00%3100.00%

#ifdef CONFIG_INET_DIAG_DESTROY
static int tcp_diag_destroy(struct sk_buff *in_skb, const struct inet_diag_req_v2 *req) { struct net *net = sock_net(in_skb->sk); struct sock *sk = inet_diag_find_one_icsk(net, &tcp_hashinfo, req); int err; if (IS_ERR(sk)) return PTR_ERR(sk); err = sock_diag_destroy(sk, ECONNABORTED); sock_gen_put(sk); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Lorenzo Colitti6483.12%150.00%
David Ahern1316.88%150.00%
Total77100.00%2100.00%

#endif static const struct inet_diag_handler tcp_diag_handler = { .dump = tcp_diag_dump, .dump_one = tcp_diag_dump_one, .idiag_get_info = tcp_diag_get_info, .idiag_type = IPPROTO_TCP, .idiag_info_size = sizeof(struct tcp_info), #ifdef CONFIG_INET_DIAG_DESTROY .destroy = tcp_diag_destroy, #endif };
static int __init tcp_diag_init(void) { return inet_diag_register(&tcp_diag_handler); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo16100.00%1100.00%
Total16100.00%1100.00%


static void __exit tcp_diag_exit(void) { inet_diag_unregister(&tcp_diag_handler); }

Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo15100.00%1100.00%
Total15100.00%1100.00%

module_init(tcp_diag_init); module_exit(tcp_diag_exit); MODULE_LICENSE("GPL"); MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_NETLINK, NETLINK_SOCK_DIAG, 2-6 /* AF_INET - IPPROTO_TCP */);

Overall Contributors

PersonTokensPropCommitsCommitProp
Arnaldo Carvalho de Melo13834.33%15.56%
Pavel Emelyanov8821.89%527.78%
Lorenzo Colitti8721.64%15.56%
Craig Gallek297.21%211.11%
Sridhar Samudrala143.48%15.56%
Eric Dumazet133.23%422.22%
David Ahern133.23%15.56%
Rick Jones122.99%15.56%
Jean Delvare71.74%15.56%
Adrian Bunk10.25%15.56%
Total402100.00%18100.00%
Directory: net/ipv4
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