Gecko [ paroquia-rio-de-mouro.pt ]

Name	Size	Permission	Date
9p	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
bluetooth	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
caif	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
irda	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
iucv	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
netfilter	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
netns	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
nfc	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
phonet	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
sctp	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
tc_act	[ DIR ]	drwxr-xr-x	2021-04-21 07:33
6lowpan.h	7.53 KB	-rw-r--r--	2016-01-11 00:01
Space.h	1.12 KB	-rw-r--r--	2016-01-11 00:01
act_api.h	4.21 KB	-rw-r--r--	2016-01-11 00:01
addrconf.h	11.59 KB	-rw-r--r--	2021-04-16 11:57
af_ieee802154.h	1.55 KB	-rw-r--r--	2016-01-11 00:01
af_rxrpc.h	1.82 KB	-rw-r--r--	2016-01-11 00:01
af_unix.h	2.12 KB	-rw-r--r--	2021-04-16 11:57
af_vsock.h	6.16 KB	-rw-r--r--	2021-04-16 11:57
ah.h	343 B	-rw-r--r--	2016-01-11 00:01
arp.h	1.96 KB	-rw-r--r--	2021-04-16 11:57
atmclip.h	1.44 KB	-rw-r--r--	2016-01-11 00:01
ax25.h	14.72 KB	-rw-r--r--	2021-04-16 11:57
ax88796.h	998 B	-rw-r--r--	2016-01-11 00:01
bond_3ad.h	9.73 KB	-rw-r--r--	2016-01-11 00:01
bond_alb.h	6.6 KB	-rw-r--r--	2016-01-11 00:01
bond_options.h	3.82 KB	-rw-r--r--	2016-01-11 00:01
bonding.h	18.67 KB	-rw-r--r--	2021-04-16 11:57
busy_poll.h	3.98 KB	-rw-r--r--	2021-04-16 11:57
cfg80211-wext.h	1.95 KB	-rw-r--r--	2016-01-11 00:01
cfg80211.h	188.01 KB	-rw-r--r--	2021-04-16 11:57
cfg802154.h	10.59 KB	-rw-r--r--	2016-01-11 00:01
checksum.h	4.53 KB	-rw-r--r--	2016-01-11 00:01
cipso_ipv4.h	8.17 KB	-rw-r--r--	2021-04-16 11:57
cls_cgroup.h	2.03 KB	-rw-r--r--	2016-01-11 00:01
codel.h	11.37 KB	-rw-r--r--	2021-04-16 11:57
compat.h	2 KB	-rw-r--r--	2016-01-11 00:01
datalink.h	580 B	-rw-r--r--	2016-01-11 00:01
dcbevent.h	1.26 KB	-rw-r--r--	2016-01-11 00:01
dcbnl.h	4.2 KB	-rw-r--r--	2016-01-11 00:01
dn.h	7 KB	-rw-r--r--	2016-01-11 00:01
dn_dev.h	5.32 KB	-rw-r--r--	2016-01-11 00:01
dn_fib.h	3.91 KB	-rw-r--r--	2016-01-11 00:01
dn_neigh.h	929 B	-rw-r--r--	2016-01-11 00:01
dn_nsp.h	5.87 KB	-rw-r--r--	2016-01-11 00:01
dn_route.h	4.36 KB	-rw-r--r--	2016-01-11 00:01
dsa.h	8.93 KB	-rw-r--r--	2016-01-11 00:01
dsfield.h	1.07 KB	-rw-r--r--	2016-01-11 00:01
dst.h	13.68 KB	-rw-r--r--	2021-04-16 11:57
dst_cache.h	2.49 KB	-rw-r--r--	2021-04-16 11:57
dst_metadata.h	3.61 KB	-rw-r--r--	2021-04-16 11:57
dst_ops.h	2.03 KB	-rw-r--r--	2021-04-16 11:57
esp.h	225 B	-rw-r--r--	2016-01-11 00:01
ethoc.h	538 B	-rw-r--r--	2016-01-11 00:01
fib_rules.h	3.03 KB	-rw-r--r--	2021-04-16 11:57
firewire.h	597 B	-rw-r--r--	2016-01-11 00:01
flow.h	6.78 KB	-rw-r--r--	2016-01-11 00:01
flow_dissector.h	5.15 KB	-rw-r--r--	2021-04-16 11:57
flowcache.h	561 B	-rw-r--r--	2016-01-11 00:01
fou.h	499 B	-rw-r--r--	2016-01-11 00:01
garp.h	2.58 KB	-rw-r--r--	2016-01-11 00:01
gen_stats.h	2.13 KB	-rw-r--r--	2016-01-11 00:01
genetlink.h	12.89 KB	-rw-r--r--	2021-04-16 11:57
geneve.h	1.82 KB	-rw-r--r--	2021-04-16 11:57
gre.h	661 B	-rw-r--r--	2016-01-11 00:01
gro_cells.h	2.08 KB	-rw-r--r--	2021-04-16 11:57
gue.h	3.19 KB	-rw-r--r--	2016-01-11 00:01
icmp.h	1.73 KB	-rw-r--r--	2021-04-16 11:57
ieee80211_radiotap.h	12.22 KB	-rw-r--r--	2016-01-11 00:01
ieee802154_netdev.h	9.13 KB	-rw-r--r--	2016-01-11 00:01
if_inet6.h	6.07 KB	-rw-r--r--	2016-01-11 00:01
inet6_connection_sock.h	1.1 KB	-rw-r--r--	2016-01-11 00:01
inet6_hashtables.h	3.25 KB	-rw-r--r--	2016-01-11 00:01
inet_common.h	1.6 KB	-rw-r--r--	2016-01-11 00:01
inet_connection_sock.h	10.41 KB	-rw-r--r--	2021-04-16 11:57
inet_ecn.h	6.08 KB	-rw-r--r--	2021-04-16 11:57
inet_frag.h	3.98 KB	-rw-r--r--	2021-04-16 11:57
inet_hashtables.h	12.02 KB	-rw-r--r--	2016-01-11 00:01
inet_sock.h	7.87 KB	-rw-r--r--	2021-04-16 11:57
inet_timewait_sock.h	4.16 KB	-rw-r--r--	2021-04-16 11:57
inetpeer.h	3.46 KB	-rw-r--r--	2021-04-16 11:57
ip.h	17.59 KB	-rw-r--r--	2021-04-16 11:57
ip6_checksum.h	2.91 KB	-rw-r--r--	2016-01-11 00:01
ip6_fib.h	7.28 KB	-rw-r--r--	2021-04-16 11:57
ip6_route.h	6.32 KB	-rw-r--r--	2021-04-16 11:57
ip6_tunnel.h	3 KB	-rw-r--r--	2021-04-16 11:57
ip_fib.h	9.48 KB	-rw-r--r--	2021-04-16 11:57
ip_tunnels.h	10.58 KB	-rw-r--r--	2021-04-16 11:57
ip_vs.h	46.15 KB	-rw-r--r--	2021-04-16 11:57
ipcomp.h	620 B	-rw-r--r--	2016-01-11 00:01
ipconfig.h	772 B	-rw-r--r--	2016-01-11 00:01
ipv6.h	28.29 KB	-rw-r--r--	2021-04-16 11:57
ipx.h	4.32 KB	-rw-r--r--	2016-01-11 00:01
iw_handler.h	22.21 KB	-rw-r--r--	2021-04-16 11:57
l3mdev.h	5.18 KB	-rw-r--r--	2021-04-16 11:57
lapb.h	4.69 KB	-rw-r--r--	2016-01-11 00:01
lib80211.h	3.88 KB	-rw-r--r--	2016-01-11 00:01
llc.h	4.38 KB	-rw-r--r--	2021-04-16 11:57
llc_c_ac.h	9.34 KB	-rw-r--r--	2016-01-11 00:01
llc_c_ev.h	10.68 KB	-rw-r--r--	2016-01-11 00:01
llc_c_st.h	1.72 KB	-rw-r--r--	2016-01-11 00:01
llc_conn.h	4.06 KB	-rw-r--r--	2021-04-16 11:57
llc_if.h	2.16 KB	-rw-r--r--	2016-01-11 00:01
llc_pdu.h	14.08 KB	-rw-r--r--	2016-01-11 00:01
llc_s_ac.h	1.55 KB	-rw-r--r--	2016-01-11 00:01
llc_s_ev.h	2.2 KB	-rw-r--r--	2016-01-11 00:01
llc_s_st.h	947 B	-rw-r--r--	2016-01-11 00:01
llc_sap.h	1.08 KB	-rw-r--r--	2016-01-11 00:01
lwtunnel.h	4.07 KB	-rw-r--r--	2016-01-11 00:01
mac80211.h	213.51 KB	-rw-r--r--	2021-04-16 11:57
mac802154.h	12.1 KB	-rw-r--r--	2016-01-11 00:01
mip6.h	1.58 KB	-rw-r--r--	2016-01-11 00:01
mld.h	2.76 KB	-rw-r--r--	2016-01-11 00:01
mpls.h	1.14 KB	-rw-r--r--	2016-01-11 00:01
mpls_iptunnel.h	815 B	-rw-r--r--	2016-01-11 00:01
mrp.h	2.99 KB	-rw-r--r--	2016-01-11 00:01
ndisc.h	5.75 KB	-rw-r--r--	2021-04-16 11:57
neighbour.h	14.62 KB	-rw-r--r--	2021-04-16 11:57
net_namespace.h	9.26 KB	-rw-r--r--	2021-04-16 11:57
net_ratelimit.h	181 B	-rw-r--r--	2016-01-11 00:01
netevent.h	739 B	-rw-r--r--	2016-01-11 00:01
netlabel.h	17.25 KB	-rw-r--r--	2016-01-11 00:01
netlink.h	36.53 KB	-rw-r--r--	2021-04-16 11:57
netprio_cgroup.h	1.08 KB	-rw-r--r--	2016-01-11 00:01
netrom.h	7.61 KB	-rw-r--r--	2016-01-11 00:01
nexthop.h	826 B	-rw-r--r--	2021-04-16 11:57
nl802154.h	11.89 KB	-rw-r--r--	2016-01-11 00:01
p8022.h	408 B	-rw-r--r--	2016-01-11 00:01
ping.h	3.52 KB	-rw-r--r--	2016-01-11 00:01
pkt_cls.h	9.61 KB	-rw-r--r--	2021-04-16 11:57
pkt_sched.h	3.77 KB	-rw-r--r--	2016-01-11 00:01
protocol.h	4.09 KB	-rw-r--r--	2016-01-11 00:01
psnap.h	312 B	-rw-r--r--	2016-01-11 00:01
raw.h	1.84 KB	-rw-r--r--	2016-01-11 00:01
rawv6.h	543 B	-rw-r--r--	2016-01-11 00:01
red.h	10.3 KB	-rw-r--r--	2021-04-16 11:57
regulatory.h	10.12 KB	-rw-r--r--	2021-04-16 11:57
request_sock.h	6.38 KB	-rw-r--r--	2016-01-11 00:01
rose.h	7.59 KB	-rw-r--r--	2016-01-11 00:01
route.h	9.51 KB	-rw-r--r--	2021-04-16 11:57
rtnetlink.h	5.37 KB	-rw-r--r--	2016-01-11 00:01
sch_generic.h	20.26 KB	-rw-r--r--	2021-04-16 11:57
scm.h	3.44 KB	-rw-r--r--	2021-04-16 11:57
secure_seq.h	677 B	-rw-r--r--	2016-01-11 00:01
slhc_vj.h	6.67 KB	-rw-r--r--	2021-04-16 11:57
snmp.h	5.75 KB	-rw-r--r--	2016-01-11 00:01
sock.h	66.2 KB	-rw-r--r--	2021-04-16 11:57
stp.h	344 B	-rw-r--r--	2016-01-11 00:01
switchdev.h	8.81 KB	-rw-r--r--	2021-04-16 11:57
tcp.h	55.29 KB	-rw-r--r--	2021-04-16 11:57
tcp_memcontrol.h	254 B	-rw-r--r--	2016-01-11 00:01
tcp_states.h	1.26 KB	-rw-r--r--	2016-01-11 00:01
timewait_sock.h	1.11 KB	-rw-r--r--	2016-01-11 00:01
transp_v6.h	1.83 KB	-rw-r--r--	2016-01-11 00:01
tso.h	446 B	-rw-r--r--	2016-01-11 00:01
udp.h	9.77 KB	-rw-r--r--	2016-01-11 00:01
udp_tunnel.h	3.24 KB	-rw-r--r--	2016-01-11 00:01
udplite.h	3.77 KB	-rw-r--r--	2021-04-16 11:57
vsock_addr.h	1.05 KB	-rw-r--r--	2016-01-11 00:01
vxlan.h	6.99 KB	-rw-r--r--	2021-04-16 11:57
wext.h	1.47 KB	-rw-r--r--	2016-01-11 00:01
wimax.h	19.97 KB	-rw-r--r--	2016-01-11 00:01
x25.h	9.35 KB	-rw-r--r--	2021-04-16 11:57
x25device.h	348 B	-rw-r--r--	2016-01-11 00:01
xfrm.h	49.64 KB	-rw-r--r--	2021-04-16 11:57

Rename

/*
 * NET		Generic infrastructure for Network protocols.
 *
 *		Definitions for request_sock 
 *
 * Authors:	Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *
 * 		From code originally in include/net/tcp.h
 *
 *		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.
 */
#ifndef _REQUEST_SOCK_H
#define _REQUEST_SOCK_H

#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/bug.h>

#include <net/sock.h>

struct request_sock;
struct sk_buff;
struct dst_entry;
struct proto;

struct request_sock_ops {
	int		family;
	int		obj_size;
	struct kmem_cache	*slab;
	char		*slab_name;
	int		(*rtx_syn_ack)(const struct sock *sk,
				       struct request_sock *req);
	void		(*send_ack)(const struct sock *sk, struct sk_buff *skb,
				    struct request_sock *req);
	void		(*send_reset)(const struct sock *sk,
				      struct sk_buff *skb);
	void		(*destructor)(struct request_sock *req);
	void		(*syn_ack_timeout)(const struct request_sock *req);
};

int inet_rtx_syn_ack(const struct sock *parent, struct request_sock *req);

/* struct request_sock - mini sock to represent a connection request
 */
struct request_sock {
	struct sock_common		__req_common;
#define rsk_refcnt			__req_common.skc_refcnt
#define rsk_hash			__req_common.skc_hash
#define rsk_listener			__req_common.skc_listener
#define rsk_window_clamp		__req_common.skc_window_clamp
#define rsk_rcv_wnd			__req_common.skc_rcv_wnd

struct request_sock		*dl_next;
	u16				mss;
	u8				num_retrans; /* number of retransmits */
	u8				cookie_ts:1; /* syncookie: encode tcpopts in timestamp */
	u8				num_timeout:7; /* number of timeouts */
	u32				ts_recent;
	struct timer_list		rsk_timer;
	const struct request_sock_ops	*rsk_ops;
	struct sock			*sk;
	u32				*saved_syn;
	u32				secid;
	u32				peer_secid;
};

static inline struct request_sock *inet_reqsk(struct sock *sk)
{
	return (struct request_sock *)sk;
}

static inline struct sock *req_to_sk(struct request_sock *req)
{
	return (struct sock *)req;
}

static inline struct request_sock *
reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener,
	    bool attach_listener)
{
	struct request_sock *req;

req = kmem_cache_alloc(ops->slab, GFP_ATOMIC | __GFP_NOWARN);

if (req) {
		req->rsk_ops = ops;
		if (attach_listener) {
			sock_hold(sk_listener);
			req->rsk_listener = sk_listener;
		} else {
			req->rsk_listener = NULL;
		}
		req_to_sk(req)->sk_prot = sk_listener->sk_prot;
		sk_node_init(&req_to_sk(req)->sk_node);
		sk_tx_queue_clear(req_to_sk(req));
		req->saved_syn = NULL;
		/* Following is temporary. It is coupled with debugging
		 * helpers in reqsk_put() & reqsk_free()
		 */
		atomic_set(&req->rsk_refcnt, 0);
	}
	return req;
}

static inline void reqsk_free(struct request_sock *req)
{
	/* temporary debugging */
	WARN_ON_ONCE(atomic_read(&req->rsk_refcnt) != 0);

req->rsk_ops->destructor(req);
	if (req->rsk_listener)
		sock_put(req->rsk_listener);
	kfree(req->saved_syn);
	kmem_cache_free(req->rsk_ops->slab, req);
}

static inline void reqsk_put(struct request_sock *req)
{
	if (atomic_dec_and_test(&req->rsk_refcnt))
		reqsk_free(req);
}

extern int sysctl_max_syn_backlog;

/*
 * For a TCP Fast Open listener -
 *	lock - protects the access to all the reqsk, which is co-owned by
 *		the listener and the child socket.
 *	qlen - pending TFO requests (still in TCP_SYN_RECV).
 *	max_qlen - max TFO reqs allowed before TFO is disabled.
 *
 *	XXX (TFO) - ideally these fields can be made as part of "listen_sock"
 *	structure above. But there is some implementation difficulty due to
 *	listen_sock being part of request_sock_queue hence will be freed when
 *	a listener is stopped. But TFO related fields may continue to be
 *	accessed even after a listener is closed, until its sk_refcnt drops
 *	to 0 implying no more outstanding TFO reqs. One solution is to keep
 *	listen_opt around until	sk_refcnt drops to 0. But there is some other
 *	complexity that needs to be resolved. E.g., a listener can be disabled
 *	temporarily through shutdown()->tcp_disconnect(), and re-enabled later.
 */
struct fastopen_queue {
	struct request_sock	*rskq_rst_head; /* Keep track of past TFO */
	struct request_sock	*rskq_rst_tail; /* requests that caused RST.
						 * This is part of the defense
						 * against spoofing attack.
						 */
	spinlock_t	lock;
	int		qlen;		/* # of pending (TCP_SYN_RECV) reqs */
	int		max_qlen;	/* != 0 iff TFO is currently enabled */
};

/** struct request_sock_queue - queue of request_socks
 *
 * @rskq_accept_head - FIFO head of established children
 * @rskq_accept_tail - FIFO tail of established children
 * @rskq_defer_accept - User waits for some data after accept()
 *
 */
struct request_sock_queue {
	spinlock_t		rskq_lock;
	u8			rskq_defer_accept;

u32			synflood_warned;
	atomic_t		qlen;
	atomic_t		young;

struct request_sock	*rskq_accept_head;
	struct request_sock	*rskq_accept_tail;
	struct fastopen_queue	fastopenq;  /* Check max_qlen != 0 to determine
					     * if TFO is enabled.
					     */
};

void reqsk_queue_alloc(struct request_sock_queue *queue);

void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
			   bool reset);

static inline bool reqsk_queue_empty(const struct request_sock_queue *queue)
{
	return queue->rskq_accept_head == NULL;
}

static inline struct request_sock *reqsk_queue_remove(struct request_sock_queue *queue,
						      struct sock *parent)
{
	struct request_sock *req;

spin_lock_bh(&queue->rskq_lock);
	req = queue->rskq_accept_head;
	if (req) {
		sk_acceptq_removed(parent);
		queue->rskq_accept_head = req->dl_next;
		if (queue->rskq_accept_head == NULL)
			queue->rskq_accept_tail = NULL;
	}
	spin_unlock_bh(&queue->rskq_lock);
	return req;
}

static inline void reqsk_queue_removed(struct request_sock_queue *queue,
				       const struct request_sock *req)
{
	if (req->num_timeout == 0)
		atomic_dec(&queue->young);
	atomic_dec(&queue->qlen);
}

static inline void reqsk_queue_added(struct request_sock_queue *queue)
{
	atomic_inc(&queue->young);
	atomic_inc(&queue->qlen);
}

static inline int reqsk_queue_len(const struct request_sock_queue *queue)
{
	return atomic_read(&queue->qlen);
}

static inline int reqsk_queue_len_young(const struct request_sock_queue *queue)
{
	return atomic_read(&queue->young);
}

#endif /* _REQUEST_SOCK_H */