/*
 * 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);
}

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);
}

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);
}

#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;
}
#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);
}

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

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 */);
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>testing</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>selftests</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/x86?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>x86</a>/<a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>thunks.S</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='f082f02c4731900a5065de69eb0d8cb5aab66196'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 20:23:11 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 20:23:11 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>f082f02c4731900a5065de69eb0d8cb5aab66196</a> (<a href='/cgit.cgi/linux/net-next.git/patch/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>b7d3c90cb087d1ebcc0ab945bdb618c78b38051d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>tools/testing/selftests/x86/thunks.S</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/x86/thunks.S?id=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196&amp;id2=9465d9cc31fa732089cd8bec9f1bdfcdc174a5ce'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/tools/testing/selftests/x86/thunks.S?id=2cae3a1ed36ded9b4c8859feeea73827f1c2130d'>2cae3a1ed36ded9b4c8859feeea73827f1c2130d</a> (<a href='/cgit.cgi/linux/net-next.git/diff/tools/testing/selftests/x86/thunks.S?id=f082f02c4731900a5065de69eb0d8cb5aab66196&amp;id2=2cae3a1ed36ded9b4c8859feeea73827f1c2130d'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip</div><div class='commit-msg'>Pull irq updates from Thomas Gleixner:
 "The irq department provides:

   - a major update to the auto affinity management code, which is used
     by multi-queue devices

   - move of the microblaze irq chip driver into the common driver code
     so it can be shared between microblaze, powerpc and MIPS

   - a series of updates to the ARM GICV3 interrupt controller

   - the usual pile of fixes and small improvements all over the place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits)
  powerpc/virtex: Use generic xilinx irqchip driver
  irqchip/xilinx: Try to fall back if xlnx,kind-of-intr not provided
  irqchip/xilinx: Add support for parent intc
  irqchip/xilinx: Rename get_irq to xintc_get_irq
  irqchip/xilinx: Restructure and use jump label api
  irqchip/xilinx: Clean up print messages
  microblaze/irqchip: Move intc driver to irqchip
  ARM: virt: Select ARM_GIC_V3_ITS
  ARM: gic-v3-its: Add 32bit support to GICv3 ITS
  irqchip/gic-v3-its: Specialise readq and writeq accesses
  irqchip/gic-v3-its: Specialise flush_dcache operation
  irqchip/gic-v3-its: Narrow down Entry Size when used as a divider
  irqchip/gic-v3-its: Change unsigned types for AArch32 compatibility
  irqchip/gic-v3: Use nops macro for Cavium ThunderX erratum 23154
  irqchip/gic-v3: Convert arm64 GIC accessors to {read,write}_sysreg_s
  genirq/msi: Drop artificial PCI dependency
  irqchip/bcm7038-l1: Implement irq_cpu_offline() callback
  genirq/affinity: Use default affinity mask for reserved vectors
  genirq/affinity: Take reserved vectors into account when spreading irqs
  PCI: Remove the irq_affinity mask from struct pci_dev
  ...
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=f082f02c4731900a5065de69eb0d8cb5aab66196'>Diffstat</a> (limited to 'tools/testing/selftests/x86/thunks.S')</div><table summary='diffstat' class='diffstat'>