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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 2 normalized pattern(s): 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses 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 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details [based] [from] [clk] [highbank] [c] you should have received a copy of the gnu general public license along with this program if not see http www gnu org licenses extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 355 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
194 lines
5.5 KiB
C
194 lines
5.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* NetLabel Network Address Lists
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*
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* This file contains network address list functions used to manage ordered
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* lists of network addresses for use by the NetLabel subsystem. The NetLabel
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* system manages static and dynamic label mappings for network protocols such
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* as CIPSO and RIPSO.
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*
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* Author: Paul Moore <paul@paul-moore.com>
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*/
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/*
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* (c) Copyright Hewlett-Packard Development Company, L.P., 2008
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*/
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#ifndef _NETLABEL_ADDRLIST_H
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#define _NETLABEL_ADDRLIST_H
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#include <linux/types.h>
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#include <linux/rcupdate.h>
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#include <linux/list.h>
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#include <linux/in6.h>
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#include <linux/audit.h>
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/**
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* struct netlbl_af4list - NetLabel IPv4 address list
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* @addr: IPv4 address
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* @mask: IPv4 address mask
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* @valid: valid flag
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* @list: list structure, used internally
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*/
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struct netlbl_af4list {
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__be32 addr;
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__be32 mask;
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u32 valid;
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struct list_head list;
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};
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/**
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* struct netlbl_af6list - NetLabel IPv6 address list
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* @addr: IPv6 address
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* @mask: IPv6 address mask
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* @valid: valid flag
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* @list: list structure, used internally
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*/
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struct netlbl_af6list {
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struct in6_addr addr;
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struct in6_addr mask;
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u32 valid;
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struct list_head list;
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};
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#define __af4list_entry(ptr) container_of(ptr, struct netlbl_af4list, list)
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static inline struct netlbl_af4list *__af4list_valid(struct list_head *s,
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struct list_head *h)
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{
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struct list_head *i = s;
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struct netlbl_af4list *n = __af4list_entry(s);
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while (i != h && !n->valid) {
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i = i->next;
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n = __af4list_entry(i);
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}
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return n;
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}
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static inline struct netlbl_af4list *__af4list_valid_rcu(struct list_head *s,
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struct list_head *h)
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{
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struct list_head *i = s;
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struct netlbl_af4list *n = __af4list_entry(s);
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while (i != h && !n->valid) {
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i = rcu_dereference(list_next_rcu(i));
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n = __af4list_entry(i);
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}
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return n;
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}
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#define netlbl_af4list_foreach(iter, head) \
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for (iter = __af4list_valid((head)->next, head); \
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&iter->list != (head); \
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iter = __af4list_valid(iter->list.next, head))
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#define netlbl_af4list_foreach_rcu(iter, head) \
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for (iter = __af4list_valid_rcu((head)->next, head); \
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&iter->list != (head); \
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iter = __af4list_valid_rcu(iter->list.next, head))
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#define netlbl_af4list_foreach_safe(iter, tmp, head) \
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for (iter = __af4list_valid((head)->next, head), \
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tmp = __af4list_valid(iter->list.next, head); \
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&iter->list != (head); \
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iter = tmp, tmp = __af4list_valid(iter->list.next, head))
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int netlbl_af4list_add(struct netlbl_af4list *entry,
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struct list_head *head);
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struct netlbl_af4list *netlbl_af4list_remove(__be32 addr, __be32 mask,
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struct list_head *head);
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void netlbl_af4list_remove_entry(struct netlbl_af4list *entry);
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struct netlbl_af4list *netlbl_af4list_search(__be32 addr,
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struct list_head *head);
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struct netlbl_af4list *netlbl_af4list_search_exact(__be32 addr,
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__be32 mask,
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struct list_head *head);
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#ifdef CONFIG_AUDIT
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void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
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int src, const char *dev,
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__be32 addr, __be32 mask);
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#else
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static inline void netlbl_af4list_audit_addr(struct audit_buffer *audit_buf,
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int src, const char *dev,
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__be32 addr, __be32 mask)
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{
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}
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#endif
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#if IS_ENABLED(CONFIG_IPV6)
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#define __af6list_entry(ptr) container_of(ptr, struct netlbl_af6list, list)
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static inline struct netlbl_af6list *__af6list_valid(struct list_head *s,
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struct list_head *h)
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{
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struct list_head *i = s;
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struct netlbl_af6list *n = __af6list_entry(s);
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while (i != h && !n->valid) {
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i = i->next;
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n = __af6list_entry(i);
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}
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return n;
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}
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static inline struct netlbl_af6list *__af6list_valid_rcu(struct list_head *s,
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struct list_head *h)
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{
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struct list_head *i = s;
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struct netlbl_af6list *n = __af6list_entry(s);
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while (i != h && !n->valid) {
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i = rcu_dereference(list_next_rcu(i));
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n = __af6list_entry(i);
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}
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return n;
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}
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#define netlbl_af6list_foreach(iter, head) \
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for (iter = __af6list_valid((head)->next, head); \
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&iter->list != (head); \
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iter = __af6list_valid(iter->list.next, head))
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#define netlbl_af6list_foreach_rcu(iter, head) \
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for (iter = __af6list_valid_rcu((head)->next, head); \
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&iter->list != (head); \
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iter = __af6list_valid_rcu(iter->list.next, head))
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#define netlbl_af6list_foreach_safe(iter, tmp, head) \
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for (iter = __af6list_valid((head)->next, head), \
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tmp = __af6list_valid(iter->list.next, head); \
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&iter->list != (head); \
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iter = tmp, tmp = __af6list_valid(iter->list.next, head))
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int netlbl_af6list_add(struct netlbl_af6list *entry,
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struct list_head *head);
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struct netlbl_af6list *netlbl_af6list_remove(const struct in6_addr *addr,
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const struct in6_addr *mask,
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struct list_head *head);
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void netlbl_af6list_remove_entry(struct netlbl_af6list *entry);
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struct netlbl_af6list *netlbl_af6list_search(const struct in6_addr *addr,
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struct list_head *head);
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struct netlbl_af6list *netlbl_af6list_search_exact(const struct in6_addr *addr,
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const struct in6_addr *mask,
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struct list_head *head);
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#ifdef CONFIG_AUDIT
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void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
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int src,
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const char *dev,
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const struct in6_addr *addr,
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const struct in6_addr *mask);
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#else
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static inline void netlbl_af6list_audit_addr(struct audit_buffer *audit_buf,
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int src,
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const char *dev,
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const struct in6_addr *addr,
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const struct in6_addr *mask)
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{
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}
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#endif
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#endif /* IPV6 */
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#endif
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