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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /net/tipc/bcast.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'net/tipc/bcast.h')
-rw-r--r--net/tipc/bcast.h127
1 files changed, 127 insertions, 0 deletions
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
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+/*
+ * net/tipc/bcast.h: Include file for TIPC broadcast code
+ *
+ * Copyright (c) 2003-2006, 2014-2015, Ericsson AB
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_BCAST_H
+#define _TIPC_BCAST_H
+
+#include "core.h"
+
+struct tipc_node;
+struct tipc_msg;
+struct tipc_nl_msg;
+struct tipc_nlist;
+struct tipc_nitem;
+extern const char tipc_bclink_name[];
+extern unsigned long sysctl_tipc_bc_retruni;
+
+#define TIPC_METHOD_EXPIRE msecs_to_jiffies(5000)
+
+#define BCLINK_MODE_BCAST 0x1
+#define BCLINK_MODE_RCAST 0x2
+#define BCLINK_MODE_SEL 0x4
+
+struct tipc_nlist {
+ struct list_head list;
+ u32 self;
+ u16 remote;
+ bool local;
+};
+
+void tipc_nlist_init(struct tipc_nlist *nl, u32 self);
+void tipc_nlist_purge(struct tipc_nlist *nl);
+void tipc_nlist_add(struct tipc_nlist *nl, u32 node);
+void tipc_nlist_del(struct tipc_nlist *nl, u32 node);
+
+/* Cookie to be used between socket and broadcast layer
+ * @rcast: replicast (instead of broadcast) was used at previous xmit
+ * @mandatory: broadcast/replicast indication was set by user
+ * @deferredq: defer queue to make message in order
+ * @expires: re-evaluate non-mandatory transmit method if we are past this
+ */
+struct tipc_mc_method {
+ bool rcast;
+ bool mandatory;
+ struct sk_buff_head deferredq;
+ unsigned long expires;
+};
+
+int tipc_bcast_init(struct net *net);
+void tipc_bcast_stop(struct net *net);
+void tipc_bcast_add_peer(struct net *net, struct tipc_link *l,
+ struct sk_buff_head *xmitq);
+void tipc_bcast_remove_peer(struct net *net, struct tipc_link *rcv_bcl);
+void tipc_bcast_inc_bearer_dst_cnt(struct net *net, int bearer_id);
+void tipc_bcast_dec_bearer_dst_cnt(struct net *net, int bearer_id);
+int tipc_bcast_get_mtu(struct net *net);
+void tipc_bcast_toggle_rcast(struct net *net, bool supp);
+int tipc_mcast_xmit(struct net *net, struct sk_buff_head *pkts,
+ struct tipc_mc_method *method, struct tipc_nlist *dests,
+ u16 *cong_link_cnt);
+int tipc_bcast_xmit(struct net *net, struct sk_buff_head *pkts,
+ u16 *cong_link_cnt);
+int tipc_bcast_rcv(struct net *net, struct tipc_link *l, struct sk_buff *skb);
+void tipc_bcast_ack_rcv(struct net *net, struct tipc_link *l,
+ struct tipc_msg *hdr);
+int tipc_bcast_sync_rcv(struct net *net, struct tipc_link *l,
+ struct tipc_msg *hdr,
+ struct sk_buff_head *retrq);
+int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg,
+ struct tipc_link *bcl);
+int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]);
+int tipc_bclink_reset_stats(struct net *net, struct tipc_link *l);
+
+u32 tipc_bcast_get_mode(struct net *net);
+u32 tipc_bcast_get_broadcast_ratio(struct net *net);
+
+void tipc_mcast_filter_msg(struct net *net, struct sk_buff_head *defq,
+ struct sk_buff_head *inputq);
+
+static inline void tipc_bcast_lock(struct net *net)
+{
+ spin_lock_bh(&tipc_net(net)->bclock);
+}
+
+static inline void tipc_bcast_unlock(struct net *net)
+{
+ spin_unlock_bh(&tipc_net(net)->bclock);
+}
+
+static inline struct tipc_link *tipc_bc_sndlink(struct net *net)
+{
+ return tipc_net(net)->bcl;
+}
+
+#endif