b9a1e62740
hsr_link_ops implements ->newlink() but not ->dellink(), which leads that resources not released after removing the device, particularly the entries in self_node_db and node_db. So add ->dellink() implementation to replace the priv_destructor. This also makes the code slightly easier to understand. Reported-by: syzbot+c6167ec3de7def23d1e8@syzkaller.appspotmail.com Cc: Arvid Brodin <arvid.brodin@alten.se> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright 2011-2014 Autronica Fire and Security AS
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*
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* Author(s):
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* 2011-2014 Arvid Brodin, arvid.brodin@alten.se
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*/
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#ifndef __HSR_FRAMEREG_H
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#define __HSR_FRAMEREG_H
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#include "hsr_main.h"
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struct hsr_node;
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void hsr_del_self_node(struct list_head *self_node_db);
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void hsr_del_nodes(struct list_head *node_db);
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struct hsr_node *hsr_add_node(struct list_head *node_db, unsigned char addr[],
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u16 seq_out);
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struct hsr_node *hsr_get_node(struct hsr_port *port, struct sk_buff *skb,
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bool is_sup);
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void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr,
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struct hsr_port *port);
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bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr);
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void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb);
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void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
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struct hsr_port *port);
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void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
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u16 sequence_nr);
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int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
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u16 sequence_nr);
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void hsr_prune_nodes(struct timer_list *t);
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int hsr_create_self_node(struct list_head *self_node_db,
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unsigned char addr_a[ETH_ALEN],
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unsigned char addr_b[ETH_ALEN]);
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void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
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unsigned char addr[ETH_ALEN]);
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int hsr_get_node_data(struct hsr_priv *hsr,
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const unsigned char *addr,
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unsigned char addr_b[ETH_ALEN],
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unsigned int *addr_b_ifindex,
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int *if1_age,
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u16 *if1_seq,
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int *if2_age,
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u16 *if2_seq);
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struct hsr_node {
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struct list_head mac_list;
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unsigned char macaddress_A[ETH_ALEN];
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unsigned char macaddress_B[ETH_ALEN];
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/* Local slave through which AddrB frames are received from this node */
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enum hsr_port_type addr_B_port;
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unsigned long time_in[HSR_PT_PORTS];
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bool time_in_stale[HSR_PT_PORTS];
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u16 seq_out[HSR_PT_PORTS];
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struct rcu_head rcu_head;
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};
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#endif /* __HSR_FRAMEREG_H */
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