Rename all in6p local variables to inp.

There exists no struct in6pcb in OpenBSD, this was an old kame idea.
Calling the local variable in6p does not make sense, it is actually
a struct inpcb.  Also in6p is not used consistently in inet6 code.
Having the same convention for IPv4 and IPv6 is less confusing.

OK sashan@ mvs@

7 files changed, 133 insertions, 134 deletions

diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c
index aece612d01f..2ec50eb06a2 100644
--- a/sys/netinet6/icmp6.c
+++ b/sys/netinet6/icmp6.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: icmp6.c,v 1.250 2023/11/28 13:23:20 bluhm Exp $	*/
+/*	$OpenBSD: icmp6.c,v 1.251 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: icmp6.c,v 1.217 2001/06/20 15:03:29 jinmei Exp $	*/
 
 /*
@@ -1693,7 +1693,7 @@ icmp6_ctloutput(int op, struct socket *so, int level, int optname,
     struct mbuf *m)
 {
 	int error = 0;
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 
 	if (level != IPPROTO_ICMPV6)
 		return EINVAL;
@@ -1710,11 +1710,11 @@ icmp6_ctloutput(int op, struct socket *so, int level, int optname,
 				break;
 			}
 			p = mtod(m, struct icmp6_filter *);
-			if (!p || !in6p->inp_icmp6filt) {
+			if (!p || !inp->inp_icmp6filt) {
 				error = EINVAL;
 				break;
 			}
-			bcopy(p, in6p->inp_icmp6filt,
+			bcopy(p, inp->inp_icmp6filt,
 				sizeof(struct icmp6_filter));
 			error = 0;
 			break;
@@ -1732,13 +1732,13 @@ icmp6_ctloutput(int op, struct socket *so, int level, int optname,
 		    {
 			struct icmp6_filter *p;
 
-			if (!in6p->inp_icmp6filt) {
+			if (!inp->inp_icmp6filt) {
 				error = EINVAL;
 				break;
 			}
 			m->m_len = sizeof(struct icmp6_filter);
 			p = mtod(m, struct icmp6_filter *);
-			bcopy(in6p->inp_icmp6filt, p,
+			bcopy(inp->inp_icmp6filt, p,
 				sizeof(struct icmp6_filter));
 			error = 0;
 			break;
diff --git a/sys/netinet6/in6_pcb.c b/sys/netinet6/in6_pcb.c
index 4ced92a948f..b0c30bfff4d 100644
--- a/sys/netinet6/in6_pcb.c
+++ b/sys/netinet6/in6_pcb.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: in6_pcb.c,v 1.129 2023/12/03 20:24:17 bluhm Exp $	*/
+/*	$OpenBSD: in6_pcb.c,v 1.130 2023/12/03 20:36:24 bluhm Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -373,10 +373,10 @@ in6_setpeeraddr(struct inpcb *inp, struct mbuf *nam)
 int
 in6_sockaddr(struct socket *so, struct mbuf *nam)
 {
-	struct inpcb *in6p;
+	struct inpcb *inp;
 
-	in6p = sotoinpcb(so);
-	in6_setsockaddr(in6p, nam);
+	inp = sotoinpcb(so);
+	in6_setsockaddr(inp, nam);
 
 	return (0);
 }
@@ -384,10 +384,10 @@ in6_sockaddr(struct socket *so, struct mbuf *nam)
 int
 in6_peeraddr(struct socket *so, struct mbuf *nam)
 {
-	struct inpcb *in6p;
+	struct inpcb *inp;
 
-	in6p = sotoinpcb(so);
-	in6_setpeeraddr(in6p, nam);
+	inp = sotoinpcb(so);
+	in6_setpeeraddr(inp, nam);
 
 	return (0);
 }
diff --git a/sys/netinet6/in6_src.c b/sys/netinet6/in6_src.c
index 7128b0d2f9e..2272c828cb9 100644
--- a/sys/netinet6/in6_src.c
+++ b/sys/netinet6/in6_src.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: in6_src.c,v 1.88 2023/12/01 14:08:04 bluhm Exp $	*/
+/*	$OpenBSD: in6_src.c,v 1.89 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: in6_src.c,v 1.36 2001/02/06 04:08:17 itojun Exp $	*/
 
 /*
@@ -422,10 +422,10 @@ in6_selectif(struct sockaddr_in6 *dstsock, struct ip6_pktopts *opts,
 }
 
 int
-in6_selecthlim(struct inpcb *in6p)
+in6_selecthlim(struct inpcb *inp)
 {
-	if (in6p && in6p->inp_hops >= 0)
-		return (in6p->inp_hops);
+	if (inp && inp->inp_hops >= 0)
+		return (inp->inp_hops);
 
 	return (ip6_defhlim);
 }
diff --git a/sys/netinet6/ip6_input.c b/sys/netinet6/ip6_input.c
index 76ff8cbfbbf..21bd2848c31 100644
--- a/sys/netinet6/ip6_input.c
+++ b/sys/netinet6/ip6_input.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip6_input.c,v 1.256 2023/09/16 09:33:27 mpi Exp $	*/
+/*	$OpenBSD: ip6_input.c,v 1.257 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: ip6_input.c,v 1.188 2001/03/29 05:34:31 itojun Exp $	*/
 
 /*
@@ -1012,11 +1012,11 @@ ip6_unknown_opt(struct mbuf **mp, u_int8_t *optp, int off)
  * you are using IP6_EXTHDR_CHECK() not m_pulldown())
  */
 void
-ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
+ip6_savecontrol(struct inpcb *inp, struct mbuf *m, struct mbuf **mp)
 {
 	struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
 
-	if (in6p->inp_socket->so_options & SO_TIMESTAMP) {
+	if (inp->inp_socket->so_options & SO_TIMESTAMP) {
 		struct timeval tv;
 
 		m_microtime(m, &tv);
@@ -1027,7 +1027,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 	}
 
 	/* RFC 2292 sec. 5 */
-	if ((in6p->inp_flags & IN6P_PKTINFO) != 0) {
+	if ((inp->inp_flags & IN6P_PKTINFO) != 0) {
 		struct in6_pktinfo pi6;
 		memcpy(&pi6.ipi6_addr, &ip6->ip6_dst, sizeof(struct in6_addr));
 		if (IN6_IS_SCOPE_EMBED(&pi6.ipi6_addr))
@@ -1040,7 +1040,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 			mp = &(*mp)->m_next;
 	}
 
-	if ((in6p->inp_flags & IN6P_HOPLIMIT) != 0) {
+	if ((inp->inp_flags & IN6P_HOPLIMIT) != 0) {
 		int hlim = ip6->ip6_hlim & 0xff;
 		*mp = sbcreatecontrol((caddr_t) &hlim, sizeof(int),
 		    IPV6_HOPLIMIT, IPPROTO_IPV6);
@@ -1048,7 +1048,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 			mp = &(*mp)->m_next;
 	}
 
-	if ((in6p->inp_flags & IN6P_TCLASS) != 0) {
+	if ((inp->inp_flags & IN6P_TCLASS) != 0) {
 		u_int32_t flowinfo;
 		int tclass;
 
@@ -1069,7 +1069,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 	 * returned to normal user.
 	 * See also RFC 2292 section 6 (or RFC 3542 section 8).
 	 */
-	if ((in6p->inp_flags & IN6P_HOPOPTS) != 0) {
+	if ((inp->inp_flags & IN6P_HOPOPTS) != 0) {
 		/*
 		 * Check if a hop-by-hop options header is contained in the
 		 * received packet, and if so, store the options as ancillary
@@ -1114,7 +1114,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 	}
 
 	/* IPV6_DSTOPTS and IPV6_RTHDR socket options */
-	if ((in6p->inp_flags & (IN6P_RTHDR | IN6P_DSTOPTS)) != 0) {
+	if ((inp->inp_flags & (IN6P_RTHDR | IN6P_DSTOPTS)) != 0) {
 		struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
 		int nxt = ip6->ip6_nxt, off = sizeof(struct ip6_hdr);
 
@@ -1162,7 +1162,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 
 			switch (nxt) {
 			case IPPROTO_DSTOPTS:
-				if (!(in6p->inp_flags & IN6P_DSTOPTS))
+				if (!(inp->inp_flags & IN6P_DSTOPTS))
 					break;
 
 				*mp = sbcreatecontrol((caddr_t)ip6e, elen,
@@ -1173,7 +1173,7 @@ ip6_savecontrol(struct inpcb *in6p, struct mbuf *m, struct mbuf **mp)
 				break;
 
 			case IPPROTO_ROUTING:
-				if (!(in6p->inp_flags & IN6P_RTHDR))
+				if (!(inp->inp_flags & IN6P_RTHDR))
 					break;
 
 				*mp = sbcreatecontrol((caddr_t)ip6e, elen,
diff --git a/sys/netinet6/ip6_var.h b/sys/netinet6/ip6_var.h
index ae7c7f92560..ebfde734480 100644
--- a/sys/netinet6/ip6_var.h
+++ b/sys/netinet6/ip6_var.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ip6_var.h,v 1.108 2023/12/01 14:08:04 bluhm Exp $	*/
+/*	$OpenBSD: ip6_var.h,v 1.109 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: ip6_var.h,v 1.33 2000/06/11 14:59:20 jinmei Exp $	*/
 
 /*
@@ -301,7 +301,6 @@ extern uint8_t	ip6_soiikey[IP6_SOIIKEY_LEN];
 
 extern const struct pr_usrreqs rip6_usrreqs;
 
-struct in6pcb;
 struct inpcb;
 
 int	icmp6_ctloutput(int, struct socket *, int, int, struct mbuf *);
diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c
index 94bf4934ccf..afbb6c737f2 100644
--- a/sys/netinet6/raw_ip6.c
+++ b/sys/netinet6/raw_ip6.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: raw_ip6.c,v 1.176 2023/12/01 14:08:04 bluhm Exp $	*/
+/*	$OpenBSD: raw_ip6.c,v 1.177 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: raw_ip6.c,v 1.69 2001/03/04 15:55:44 itojun Exp $	*/
 
 /*
@@ -135,7 +135,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 {
 	struct mbuf *m = *mp;
 	struct ip6_hdr *ip6 = mtod(m, struct ip6_hdr *);
-	struct inpcb *in6p;
+	struct inpcb *inp;
 	SIMPLEQ_HEAD(, inpcb) inpcblist;
 	struct in6_addr *key;
 	struct sockaddr_in6 rip6src;
@@ -182,29 +182,29 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 	SIMPLEQ_INIT(&inpcblist);
 	rw_enter_write(&rawin6pcbtable.inpt_notify);
 	mtx_enter(&rawin6pcbtable.inpt_mtx);
-	TAILQ_FOREACH(in6p, &rawin6pcbtable.inpt_queue, inp_queue) {
-		if (in6p->inp_socket->so_rcv.sb_state & SS_CANTRCVMORE)
+	TAILQ_FOREACH(inp, &rawin6pcbtable.inpt_queue, inp_queue) {
+		if (inp->inp_socket->so_rcv.sb_state & SS_CANTRCVMORE)
 			continue;
-		if (rtable_l2(in6p->inp_rtableid) !=
+		if (rtable_l2(inp->inp_rtableid) !=
 		    rtable_l2(m->m_pkthdr.ph_rtableid))
 			continue;
 
-		if (!(in6p->inp_flags & INP_IPV6))
+		if (!(inp->inp_flags & INP_IPV6))
 			continue;
-		if ((in6p->inp_ipv6.ip6_nxt || proto == IPPROTO_ICMPV6) &&
-		    in6p->inp_ipv6.ip6_nxt != proto)
+		if ((inp->inp_ipv6.ip6_nxt || proto == IPPROTO_ICMPV6) &&
+		    inp->inp_ipv6.ip6_nxt != proto)
 			continue;
-		if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->inp_laddr6) &&
-		    !IN6_ARE_ADDR_EQUAL(&in6p->inp_laddr6, key))
+		if (!IN6_IS_ADDR_UNSPECIFIED(&inp->inp_laddr6) &&
+		    !IN6_ARE_ADDR_EQUAL(&inp->inp_laddr6, key))
 			continue;
-		if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->inp_faddr6) &&
-		    !IN6_ARE_ADDR_EQUAL(&in6p->inp_faddr6, &ip6->ip6_src))
+		if (!IN6_IS_ADDR_UNSPECIFIED(&inp->inp_faddr6) &&
+		    !IN6_ARE_ADDR_EQUAL(&inp->inp_faddr6, &ip6->ip6_src))
 			continue;
-		if (proto == IPPROTO_ICMPV6 && in6p->inp_icmp6filt) {
-			if (ICMP6_FILTER_WILLBLOCK(type, in6p->inp_icmp6filt))
+		if (proto == IPPROTO_ICMPV6 && inp->inp_icmp6filt) {
+			if (ICMP6_FILTER_WILLBLOCK(type, inp->inp_icmp6filt))
 				continue;
 		}
-		if (proto != IPPROTO_ICMPV6 && in6p->inp_cksum6 != -1) {
+		if (proto != IPPROTO_ICMPV6 && inp->inp_cksum6 != -1) {
 			rip6stat_inc(rip6s_isum);
 			/*
 			 * Although in6_cksum() does not need the position of
@@ -214,7 +214,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 			 * invalid.  Avoid overflow with user supplied offset.
 			 */
 			if (m->m_pkthdr.len < *offp + 2 ||
-			    m->m_pkthdr.len - *offp - 2 < in6p->inp_cksum6 ||
+			    m->m_pkthdr.len - *offp - 2 < inp->inp_cksum6 ||
 			    in6_cksum(m, proto, *offp,
 			    m->m_pkthdr.len - *offp)) {
 				rip6stat_inc(rip6s_badsum);
@@ -222,8 +222,8 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 			}
 		}
 
-		in_pcbref(in6p);
-		SIMPLEQ_INSERT_TAIL(&inpcblist, in6p, inp_notify);
+		in_pcbref(inp);
+		SIMPLEQ_INSERT_TAIL(&inpcblist, inp, inp_notify);
 	}
 	mtx_leave(&rawin6pcbtable.inpt_mtx);
 
@@ -253,7 +253,7 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 		return IPPROTO_DONE;
 	}
 
-	while ((in6p = SIMPLEQ_FIRST(&inpcblist)) != NULL) {
+	while ((inp = SIMPLEQ_FIRST(&inpcblist)) != NULL) {
 		struct mbuf *n, *opts = NULL;
 
 		SIMPLEQ_REMOVE_HEAD(&inpcblist, inp_notify);
@@ -264,16 +264,16 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 		if (n != NULL) {
 			int ret;
 
-			if (in6p->inp_flags & IN6P_CONTROLOPTS)
-				ip6_savecontrol(in6p, n, &opts);
+			if (inp->inp_flags & IN6P_CONTROLOPTS)
+				ip6_savecontrol(inp, n, &opts);
 			/* strip intermediate headers */
 			m_adj(n, *offp);
 
-			mtx_enter(&in6p->inp_mtx);
-			ret = sbappendaddr(in6p->inp_socket,
-			    &in6p->inp_socket->so_rcv,
+			mtx_enter(&inp->inp_mtx);
+			ret = sbappendaddr(inp->inp_socket,
+			    &inp->inp_socket->so_rcv,
 			    sin6tosa(&rip6src), n, opts);
-			mtx_leave(&in6p->inp_mtx);
+			mtx_leave(&inp->inp_mtx);
 
 			if (ret == 0) {
 				/* should notify about lost packet */
@@ -281,9 +281,9 @@ rip6_input(struct mbuf **mp, int *offp, int proto, int af)
 				m_freem(opts);
 				rip6stat_inc(rip6s_fullsock);
 			} else
-				sorwakeup(in6p->inp_socket);
+				sorwakeup(inp->inp_socket);
 		}
-		in_pcbunref(in6p);
+		in_pcbunref(inp);
 	}
 	rw_exit_write(&rawin6pcbtable.inpt_notify);
 
@@ -332,7 +332,7 @@ rip6_ctlinput(int cmd, struct sockaddr *sa, u_int rdomain, void *d)
 
 	if (ip6 && cmd == PRC_MSGSIZE) {
 		int valid = 0;
-		struct inpcb *in6p;
+		struct inpcb *inp;
 
 		/*
 		 * Check to see if we have a valid raw IPv6 socket
@@ -341,11 +341,11 @@ rip6_ctlinput(int cmd, struct sockaddr *sa, u_int rdomain, void *d)
 		 * XXX chase extension headers, or pass final nxt value
 		 * from icmp6_notify_error()
 		 */
-		in6p = in6_pcblookup(&rawin6pcbtable, &sa6->sin6_addr, 0,
+		inp = in6_pcblookup(&rawin6pcbtable, &sa6->sin6_addr, 0,
 		    &sa6_src->sin6_addr, 0, rdomain);
 
-		if (in6p && in6p->inp_ipv6.ip6_nxt &&
-		    in6p->inp_ipv6.ip6_nxt == nxt)
+		if (inp && inp->inp_ipv6.ip6_nxt &&
+		    inp->inp_ipv6.ip6_nxt == nxt)
 			valid = 1;
 
 		/*
@@ -356,7 +356,7 @@ rip6_ctlinput(int cmd, struct sockaddr *sa, u_int rdomain, void *d)
 		 * - ignore the MTU change notification.
 		 */
 		icmp6_mtudisc_update((struct ip6ctlparam *)d, valid);
-		in_pcbunref(in6p);
+		in_pcbunref(inp);
 
 		/*
 		 * regardless of if we called icmp6_mtudisc_update(),
@@ -381,7 +381,7 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 {
 	struct in6_addr *dst;
 	struct ip6_hdr *ip6;
-	struct inpcb *in6p;
+	struct inpcb *inp;
 	u_int	plen = m->m_pkthdr.len;
 	int error = 0;
 	struct ip6_pktopts opt, *optp = NULL;
@@ -389,19 +389,19 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 	int priv = 0;
 	int flags;
 
-	in6p = sotoinpcb(so);
+	inp = sotoinpcb(so);
 
 	priv = 0;
 	if ((so->so_state & SS_PRIV) != 0)
 		priv = 1;
 	if (control) {
 		if ((error = ip6_setpktopts(control, &opt,
-		    in6p->inp_outputopts6,
+		    inp->inp_outputopts6,
 		    priv, so->so_proto->pr_protocol)) != 0)
 			goto bad;
 		optp = &opt;
 	} else
-		optp = in6p->inp_outputopts6;
+		optp = inp->inp_outputopts6;
 
 	if (dstaddr->sa_family != AF_INET6) {
 		error = EAFNOSUPPORT;
@@ -442,7 +442,7 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 
 	/* KAME hack: embed scopeid */
 	if (in6_embedscope(&ip6->ip6_dst, satosin6(dstaddr),
-	    optp, in6p->inp_moptions6) != 0) {
+	    optp, inp->inp_moptions6) != 0) {
 		error = EINVAL;
 		goto bad;
 	}
@@ -453,24 +453,24 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 	{
 		const struct in6_addr *in6a;
 
-		error = in6_pcbselsrc(&in6a, satosin6(dstaddr), in6p, optp);
+		error = in6_pcbselsrc(&in6a, satosin6(dstaddr), inp, optp);
 		if (error)
 			goto bad;
 
 		ip6->ip6_src = *in6a;
 	}
 
-	ip6->ip6_flow = in6p->inp_flowinfo & IPV6_FLOWINFO_MASK;
+	ip6->ip6_flow = inp->inp_flowinfo & IPV6_FLOWINFO_MASK;
 	ip6->ip6_vfc  &= ~IPV6_VERSION_MASK;
 	ip6->ip6_vfc  |= IPV6_VERSION;
 #if 0				/* ip6_plen will be filled in ip6_output. */
 	ip6->ip6_plen  = htons((u_short)plen);
 #endif
-	ip6->ip6_nxt   = in6p->inp_ipv6.ip6_nxt;
-	ip6->ip6_hlim = in6_selecthlim(in6p);
+	ip6->ip6_nxt   = inp->inp_ipv6.ip6_nxt;
+	ip6->ip6_hlim = in6_selecthlim(inp);
 
 	if (so->so_proto->pr_protocol == IPPROTO_ICMPV6 ||
-	    in6p->inp_cksum6 != -1) {
+	    inp->inp_cksum6 != -1) {
 		struct mbuf *n;
 		int off;
 		u_int16_t *sump;
@@ -480,7 +480,7 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 		if (so->so_proto->pr_protocol == IPPROTO_ICMPV6)
 			off = offsetof(struct icmp6_hdr, icmp6_cksum);
 		else
-			off = in6p->inp_cksum6;
+			off = inp->inp_cksum6;
 		if (plen < 2 || plen - 2 < off) {
 			error = EINVAL;
 			goto bad;
@@ -499,20 +499,20 @@ rip6_output(struct mbuf *m, struct socket *so, struct sockaddr *dstaddr,
 	}
 
 	flags = 0;
-	if (in6p->inp_flags & IN6P_MINMTU)
+	if (inp->inp_flags & IN6P_MINMTU)
 		flags |= IPV6_MINMTU;
 
 	/* force routing table */
-	m->m_pkthdr.ph_rtableid = in6p->inp_rtableid;
+	m->m_pkthdr.ph_rtableid = inp->inp_rtableid;
 
 #if NPF > 0
-	if (in6p->inp_socket->so_state & SS_ISCONNECTED &&
+	if (inp->inp_socket->so_state & SS_ISCONNECTED &&
 	    so->so_proto->pr_protocol != IPPROTO_ICMPV6)
-		pf_mbuf_link_inpcb(m, in6p);
+		pf_mbuf_link_inpcb(m, inp);
 #endif
 
-	error = ip6_output(m, optp, &in6p->inp_route6, flags,
-	    in6p->inp_moptions6, in6p->inp_seclevel);
+	error = ip6_output(m, optp, &inp->inp_route6, flags,
+	    inp->inp_moptions6, inp->inp_seclevel);
 	if (so->so_proto->pr_protocol == IPPROTO_ICMPV6) {
 		icmp6stat_inc(icp6s_outhist + type);
 	} else
@@ -584,7 +584,7 @@ extern	u_long rip6_recvspace;
 int
 rip6_attach(struct socket *so, int proto, int wait)
 {
-	struct inpcb *in6p;
+	struct inpcb *inp;
 	int error;
 
 	if (so->so_pcb)
@@ -600,37 +600,37 @@ rip6_attach(struct socket *so, int proto, int wait)
 	if ((error = in_pcballoc(so, &rawin6pcbtable, wait)))
 		return error;
 
-	in6p = sotoinpcb(so);
-	in6p->inp_ipv6.ip6_nxt = proto;
-	in6p->inp_cksum6 = -1;
+	inp = sotoinpcb(so);
+	inp->inp_ipv6.ip6_nxt = proto;
+	inp->inp_cksum6 = -1;
 
-	in6p->inp_icmp6filt = malloc(sizeof(struct icmp6_filter), M_PCB,
+	inp->inp_icmp6filt = malloc(sizeof(struct icmp6_filter), M_PCB,
 	    wait == M_WAIT ? M_WAITOK : M_NOWAIT);
-	if (in6p->inp_icmp6filt == NULL) {
-		in_pcbdetach(in6p);
+	if (inp->inp_icmp6filt == NULL) {
+		in_pcbdetach(inp);
 		return ENOMEM;
 	}
-	ICMP6_FILTER_SETPASSALL(in6p->inp_icmp6filt);
+	ICMP6_FILTER_SETPASSALL(inp->inp_icmp6filt);
 	return 0;
 }
 
 int
 rip6_detach(struct socket *so)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 
 	soassertlocked(so);
 
-	if (in6p == NULL)
+	if (inp == NULL)
 		panic("%s", __func__);
 #ifdef MROUTING
-	if (so == ip6_mrouter[in6p->inp_rtableid])
+	if (so == ip6_mrouter[inp->inp_rtableid])
 		ip6_mrouter_done(so);
 #endif
-	free(in6p->inp_icmp6filt, M_PCB, sizeof(struct icmp6_filter));
-	in6p->inp_icmp6filt = NULL;
+	free(inp->inp_icmp6filt, M_PCB, sizeof(struct icmp6_filter));
+	inp->inp_icmp6filt = NULL;
 
-	in_pcbdetach(in6p);
+	in_pcbdetach(inp);
 
 	return (0);
 }
@@ -638,25 +638,25 @@ rip6_detach(struct socket *so)
 void
 rip6_lock(struct socket *so)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 
 	NET_ASSERT_LOCKED();
-	mtx_enter(&in6p->inp_mtx);
+	mtx_enter(&inp->inp_mtx);
 }
 
 void
 rip6_unlock(struct socket *so)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 
 	NET_ASSERT_LOCKED();
-	mtx_leave(&in6p->inp_mtx);
+	mtx_leave(&inp->inp_mtx);
 }
 
 int
 rip6_bind(struct socket *so, struct mbuf *nam, struct proc *p)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 	struct sockaddr_in6 *addr;
 	int error;
 
@@ -671,17 +671,17 @@ rip6_bind(struct socket *so, struct mbuf *nam, struct proc *p)
 	 */
 	addr->sin6_port = 0;
 
-	if ((error = in6_pcbaddrisavail(in6p, addr, 0, p)))
+	if ((error = in6_pcbaddrisavail(inp, addr, 0, p)))
 		return (error);
 
-	in6p->inp_laddr6 = addr->sin6_addr;
+	inp->inp_laddr6 = addr->sin6_addr;
 	return (0);
 }
 
 int
 rip6_connect(struct socket *so, struct mbuf *nam)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 	struct sockaddr_in6 *addr;
 	const struct in6_addr *in6a;
 	int error;
@@ -692,12 +692,12 @@ rip6_connect(struct socket *so, struct mbuf *nam)
 		return (error);
 
 	/* Source address selection. XXX: need pcblookup? */
-	error = in6_pcbselsrc(&in6a, addr, in6p, in6p->inp_outputopts6);
+	error = in6_pcbselsrc(&in6a, addr, inp, inp->inp_outputopts6);
 	if (error)
 		return (error);
 
-	in6p->inp_laddr6 = *in6a;
-	in6p->inp_faddr6 = addr->sin6_addr;
+	inp->inp_laddr6 = *in6a;
+	inp->inp_faddr6 = addr->sin6_addr;
 	soisconnected(so);
 	return (0);
 }
@@ -705,14 +705,14 @@ rip6_connect(struct socket *so, struct mbuf *nam)
 int
 rip6_disconnect(struct socket *so)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 
 	soassertlocked(so);
 
 	if ((so->so_state & SS_ISCONNECTED) == 0)
 		return (ENOTCONN);
 
-	in6p->inp_faddr6 = in6addr_any;
+	inp->inp_faddr6 = in6addr_any;
 	so->so_state &= ~SS_ISCONNECTED;	/* XXX */
 	return (0);
 }
@@ -732,7 +732,7 @@ int
 rip6_send(struct socket *so, struct mbuf *m, struct mbuf *nam,
 	struct mbuf *control)
 {
-	struct inpcb *in6p = sotoinpcb(so);
+	struct inpcb *inp = sotoinpcb(so);
 	struct sockaddr_in6 dst;
 	int error;
 
@@ -752,7 +752,7 @@ rip6_send(struct socket *so, struct mbuf *m, struct mbuf *nam,
 			error = EISCONN;
 			goto out;
 		}
-		dst.sin6_addr = in6p->inp_faddr6;
+		dst.sin6_addr = inp->inp_faddr6;
 	} else {
 		struct sockaddr_in6 *addr6;
 
diff --git a/sys/netinet6/udp6_output.c b/sys/netinet6/udp6_output.c
index 4638c1e81a0..f655f445dd1 100644
--- a/sys/netinet6/udp6_output.c
+++ b/sys/netinet6/udp6_output.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: udp6_output.c,v 1.62 2023/12/01 14:08:04 bluhm Exp $	*/
+/*	$OpenBSD: udp6_output.c,v 1.63 2023/12/03 20:36:24 bluhm Exp $	*/
 /*	$KAME: udp6_output.c,v 1.21 2001/02/07 11:51:54 itojun Exp $	*/
 
 /*
@@ -93,7 +93,7 @@
  * Per RFC 768, August, 1980.
  */
 int
-udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
+udp6_output(struct inpcb *inp, struct mbuf *m, struct mbuf *addr6,
 	struct mbuf *control)
 {
 	u_int32_t ulen = m->m_pkthdr.len;
@@ -107,15 +107,15 @@ udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
 	struct proc *p = curproc;	/* XXX */
 	u_short fport;
 
-	if ((in6p->inp_socket->so_state & SS_PRIV) != 0)
+	if ((inp->inp_socket->so_state & SS_PRIV) != 0)
 		priv = 1;
 	if (control) {
 		if ((error = ip6_setpktopts(control, &opt,
-		    in6p->inp_outputopts6, priv, IPPROTO_UDP)) != 0)
+		    inp->inp_outputopts6, priv, IPPROTO_UDP)) != 0)
 			goto release;
 		optp = &opt;
 	} else
-		optp = in6p->inp_outputopts6;
+		optp = inp->inp_outputopts6;
 
 	if (addr6) {
 		struct sockaddr_in6 *sin6;
@@ -130,7 +130,7 @@ udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
 			error = EADDRNOTAVAIL;
 			goto release;
 		}
-		if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->inp_faddr6)) {
+		if (!IN6_IS_ADDR_UNSPECIFIED(&inp->inp_faddr6)) {
 			error = EISCONN;
 			goto release;
 		}
@@ -144,40 +144,40 @@ udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
 
 		/* KAME hack: embed scopeid */
 		if (in6_embedscope(&sin6->sin6_addr, sin6,
-		    in6p->inp_outputopts6, in6p->inp_moptions6) != 0) {
+		    inp->inp_outputopts6, inp->inp_moptions6) != 0) {
 			error = EINVAL;
 			goto release;
 		}
 
-		error = in6_pcbselsrc(&laddr, sin6, in6p, optp);
+		error = in6_pcbselsrc(&laddr, sin6, inp, optp);
 		if (error)
 			goto release;
 
-		if (in6p->inp_lport == 0){
-			error = in_pcbbind(in6p, NULL, p);
+		if (inp->inp_lport == 0){
+			error = in_pcbbind(inp, NULL, p);
 			if (error)
 				goto release;
 		}
 
-		if (!IN6_IS_ADDR_UNSPECIFIED(&in6p->inp_laddr6) &&
-		    !IN6_ARE_ADDR_EQUAL(&in6p->inp_laddr6, laddr)) {
+		if (!IN6_IS_ADDR_UNSPECIFIED(&inp->inp_laddr6) &&
+		    !IN6_ARE_ADDR_EQUAL(&inp->inp_laddr6, laddr)) {
 			valid.sin6_addr = *laddr;
-			valid.sin6_port = in6p->inp_lport;
+			valid.sin6_port = inp->inp_lport;
 			valid.sin6_scope_id = 0;
 			valid.sin6_family = AF_INET6;
 			valid.sin6_len = sizeof(valid);
-			error = in6_pcbaddrisavail(in6p, &valid, 0, p);
+			error = in6_pcbaddrisavail(inp, &valid, 0, p);
 			if (error)
 				goto release;
 		}
 	} else {
-		if (IN6_IS_ADDR_UNSPECIFIED(&in6p->inp_faddr6)) {
+		if (IN6_IS_ADDR_UNSPECIFIED(&inp->inp_faddr6)) {
 			error = ENOTCONN;
 			goto release;
 		}
-		laddr = &in6p->inp_laddr6;
-		faddr = &in6p->inp_faddr6;
-		fport = in6p->inp_fport;
+		laddr = &inp->inp_laddr6;
+		faddr = &inp->inp_faddr6;
+		fport = inp->inp_fport;
 	}
 
 	hlen = sizeof(struct ip6_hdr);
@@ -196,7 +196,7 @@ udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
 	 * Stuff checksum and output datagram.
 	 */
 	udp6 = (struct udphdr *)(mtod(m, caddr_t) + hlen);
-	udp6->uh_sport = in6p->inp_lport; /* lport is always set in the PCB */
+	udp6->uh_sport = inp->inp_lport; /* lport is always set in the PCB */
 	udp6->uh_dport = fport;
 	if (plen <= 0xffff)
 		udp6->uh_ulen = htons((u_short)plen);
@@ -205,35 +205,35 @@ udp6_output(struct inpcb *in6p, struct mbuf *m, struct mbuf *addr6,
 	udp6->uh_sum = 0;
 
 	ip6 = mtod(m, struct ip6_hdr *);
-	ip6->ip6_flow	= in6p->inp_flowinfo & IPV6_FLOWINFO_MASK;
+	ip6->ip6_flow	= inp->inp_flowinfo & IPV6_FLOWINFO_MASK;
 	ip6->ip6_vfc	&= ~IPV6_VERSION_MASK;
 	ip6->ip6_vfc	|= IPV6_VERSION;
 #if 0	/* ip6_plen will be filled in ip6_output. */
 	ip6->ip6_plen	= htons((u_short)plen);
 #endif
 	ip6->ip6_nxt	= IPPROTO_UDP;
-	ip6->ip6_hlim	= in6_selecthlim(in6p);
+	ip6->ip6_hlim	= in6_selecthlim(inp);
 	ip6->ip6_src	= *laddr;
 	ip6->ip6_dst	= *faddr;
 
 	m->m_pkthdr.csum_flags |= M_UDP_CSUM_OUT;
 
 	flags = 0;
-	if (in6p->inp_flags & IN6P_MINMTU)
+	if (inp->inp_flags & IN6P_MINMTU)
 		flags |= IPV6_MINMTU;
 
 	udpstat_inc(udps_opackets);
 
 	/* force routing table */
-	m->m_pkthdr.ph_rtableid = in6p->inp_rtableid;
+	m->m_pkthdr.ph_rtableid = inp->inp_rtableid;
 
 #if NPF > 0
-	if (in6p->inp_socket->so_state & SS_ISCONNECTED)
-		pf_mbuf_link_inpcb(m, in6p);
+	if (inp->inp_socket->so_state & SS_ISCONNECTED)
+		pf_mbuf_link_inpcb(m, inp);
 #endif
 
-	error = ip6_output(m, optp, &in6p->inp_route6,
-	    flags, in6p->inp_moptions6, in6p->inp_seclevel);
+	error = ip6_output(m, optp, &inp->inp_route6,
+	    flags, inp->inp_moptions6, inp->inp_seclevel);
 	goto releaseopt;
 
 release: