M1: compat layer + pf.ko skeleton builds against Linux 7.3.4

- pfk.h: BSD types/ioctl encoding (OpenBSD bit layout), locks (NET_LOCK=rwsem), pools, timeouts, mbuf shim over sk_buff, ifnet registry, toeplitz/siphash - pfk_mod/pfk_hooks: misc /dev/pf (0600), IPv4 netfilter hook skeleton, DIOCGETSTATUS answered (M1 skeleton; engine ioctls land with pf_ioctl.c) - vendorize/stage-port scripts: deterministic upstream staging with seds (struct renames, IFF_*->PFIFF_*, sa_len drops) logged to docs/porting-notes - fixes: modules_prepare+Module.symvers for out-of-tree builds
2026-11-11 12:09:34 -03:00
1 parent ba81284bd3
commit da2e9b679a
@@ -0,0 +1,82 @@
+/*	$OpenBSD: rtable.h,v 1.36 2025/07/15 09:55:49 dlg Exp $ */
+
+/*
+ * Copyright (c) 2014-2016 Martin Pieuchot
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef	_NET_RTABLE_H_
+#define	_NET_RTABLE_H_
+
+#include <sys/rwlock.h>
+
+struct art;
+
+/*
+ *  Locks used to protect struct members in this file:
+ *	I	immutable after creation
+ *	N	net lock
+ */
+
+struct rtable {
+	struct rwlock		 r_lock;
+	struct art		*r_art;		/* [I] */
+	unsigned int		 r_off;		/* [I] Offset of key in bytes */
+
+	struct sockaddr		*r_source;	/* [N] use optional src addr */
+};
+
+/*
+ * Newer routing table implementation based on ART (Allotment Routing
+ * Table).
+ */
+
+#define	rt_key(rt)	((rt)->rt_dest)
+#define	rt_plen(rt)	((rt)->rt_plen)
+#define	RT_ROOT(rt)	(0)
+
+int		 rtable_satoplen(sa_family_t, const struct sockaddr *);
+
+void		 rtable_init(void);
+int		 rtable_exists(unsigned int);
+int		 rtable_empty(unsigned int);
+int		 rtable_add(unsigned int);
+unsigned int	 rtable_l2(unsigned int);
+unsigned int	 rtable_loindex(unsigned int);
+void		 rtable_l2set(unsigned int, unsigned int, unsigned int);
+
+int		 rtable_setsource(unsigned int, int, struct sockaddr *);
+struct sockaddr *rtable_getsource(unsigned int, int);
+void		 rtable_clearsource(unsigned int, struct sockaddr *);
+struct rtentry	*rtable_lookup(unsigned int, const struct sockaddr *,
+		     const struct sockaddr *, const struct sockaddr *, uint8_t);
+struct rtentry	*rtable_match(unsigned int, const struct sockaddr *,
+		     uint32_t *);
+struct rtentry	*rtable_iterate(struct rtentry *);
+int		 rtable_insert(unsigned int, struct sockaddr *,
+		     const struct sockaddr *, const struct sockaddr *, uint8_t,
+		     struct rtentry *);
+int		 rtable_delete(unsigned int, const struct sockaddr *,
+		     const struct sockaddr *, struct rtentry *);
+int		 rtable_walk(unsigned int, sa_family_t, struct rtentry **,
+		     int (*)(struct rtentry *, void *, unsigned int), void *);
+int		 rtable_read(unsigned int, sa_family_t,
+		     int (*)(const struct rtentry *, void *, unsigned int),
+		     void *);
+
+int		 rtable_mpath_capable(unsigned int, sa_family_t);
+int		 rtable_mpath_reprio(unsigned int, struct sockaddr *, int,
+		     uint8_t, struct rtentry *);
+
+#endif /* _NET_RTABLE_H_ */