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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 /include/net/raw.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 'include/net/raw.h')
-rw-r--r--include/net/raw.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/include/net/raw.h b/include/net/raw.h
new file mode 100644
index 000000000..3af5289fd
--- /dev/null
+++ b/include/net/raw.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * Definitions for the RAW-IP module.
+ *
+ * Version: @(#)raw.h 1.0.2 05/07/93
+ *
+ * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ */
+#ifndef _RAW_H
+#define _RAW_H
+
+#include <net/inet_sock.h>
+#include <net/protocol.h>
+#include <net/netns/hash.h>
+#include <linux/hash.h>
+#include <linux/icmp.h>
+
+extern struct proto raw_prot;
+
+extern struct raw_hashinfo raw_v4_hashinfo;
+bool raw_v4_match(struct net *net, struct sock *sk, unsigned short num,
+ __be32 raddr, __be32 laddr, int dif, int sdif);
+
+int raw_abort(struct sock *sk, int err);
+void raw_icmp_error(struct sk_buff *, int, u32);
+int raw_local_deliver(struct sk_buff *, int);
+
+int raw_rcv(struct sock *, struct sk_buff *);
+
+#define RAW_HTABLE_LOG 8
+#define RAW_HTABLE_SIZE (1U << RAW_HTABLE_LOG)
+
+struct raw_hashinfo {
+ spinlock_t lock;
+
+ struct hlist_head ht[RAW_HTABLE_SIZE] ____cacheline_aligned;
+};
+
+static inline u32 raw_hashfunc(const struct net *net, u32 proto)
+{
+ return hash_32(net_hash_mix(net) ^ proto, RAW_HTABLE_LOG);
+}
+
+static inline void raw_hashinfo_init(struct raw_hashinfo *hashinfo)
+{
+ int i;
+
+ spin_lock_init(&hashinfo->lock);
+ for (i = 0; i < RAW_HTABLE_SIZE; i++)
+ INIT_HLIST_HEAD(&hashinfo->ht[i]);
+}
+
+#ifdef CONFIG_PROC_FS
+int raw_proc_init(void);
+void raw_proc_exit(void);
+
+struct raw_iter_state {
+ struct seq_net_private p;
+ int bucket;
+};
+
+static inline struct raw_iter_state *raw_seq_private(struct seq_file *seq)
+{
+ return seq->private;
+}
+void *raw_seq_start(struct seq_file *seq, loff_t *pos);
+void *raw_seq_next(struct seq_file *seq, void *v, loff_t *pos);
+void raw_seq_stop(struct seq_file *seq, void *v);
+#endif
+
+int raw_hash_sk(struct sock *sk);
+void raw_unhash_sk(struct sock *sk);
+void raw_init(void);
+
+struct raw_sock {
+ /* inet_sock has to be the first member */
+ struct inet_sock inet;
+ struct icmp_filter filter;
+ u32 ipmr_table;
+};
+
+static inline struct raw_sock *raw_sk(const struct sock *sk)
+{
+ return (struct raw_sock *)sk;
+}
+
+static inline bool raw_sk_bound_dev_eq(struct net *net, int bound_dev_if,
+ int dif, int sdif)
+{
+#if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
+ return inet_bound_dev_eq(READ_ONCE(net->ipv4.sysctl_raw_l3mdev_accept),
+ bound_dev_if, dif, sdif);
+#else
+ return inet_bound_dev_eq(true, bound_dev_if, dif, sdif);
+#endif
+}
+
+#endif /* _RAW_H */