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From:
Alexander Bluhm <bluhm@openbsd.org>
Subject:
ipsecflowinfo cleanup
To:
tech@openbsd.org
Date:
Fri, 17 Jul 2026 18:07:07 +0200

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  • Alexander Bluhm:

    ipsecflowinfo cleanup

Hi,

ipsecflowinfo is mixture of uint32_t, u_int32_t and int types.  Use
uint32_t consistently.

ok?

bluhm

Index: net/pipex.c
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/net/pipex.c,v
diff -u -p -r1.163 pipex.c
--- net/pipex.c	7 Jul 2026 05:39:05 -0000	1.163
+++ net/pipex.c	17 Jul 2026 15:10:45 -0000
@@ -1941,12 +1941,12 @@ pipex_l2tp_output(struct mbuf *m0, struc
 		mtx_enter(&session->pxs_mtx);
 		if (session->proto.l2tp.ipsecflowinfo > 0) {
 			if ((mtag = m_tag_get(PACKET_TAG_IPSEC_FLOWINFO,
-			    sizeof(u_int32_t), M_NOWAIT)) == NULL) {
+			    sizeof(uint32_t), M_NOWAIT)) == NULL) {
 				mtx_leave(&session->pxs_mtx);
 				goto drop;
 			}
 
-			*(u_int32_t *)(mtag + 1) =
+			*(uint32_t *)(mtag + 1) =
 			    session->proto.l2tp.ipsecflowinfo;
 			m_tag_prepend(m0, mtag);
 		}
Index: netinet/ip_input.c
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/ip_input.c,v
diff -u -p -r1.431 ip_input.c
--- netinet/ip_input.c	16 Jul 2026 12:21:40 -0000	1.431
+++ netinet/ip_input.c	17 Jul 2026 15:10:52 -0000
@@ -1954,11 +1954,11 @@ ip_send_do_dispatch(void *xmq, int flags
 
 	NET_LOCK_SHARED();
 	while ((m = ml_dequeue(&ml)) != NULL) {
-		u_int32_t ipsecflowinfo = 0;
+		uint32_t ipsecflowinfo = 0;
 
 		if ((mtag = m_tag_find(m, PACKET_TAG_IPSEC_FLOWINFO, NULL))
 		    != NULL) {
-			ipsecflowinfo = *(u_int32_t *)(mtag + 1);
+			ipsecflowinfo = *(uint32_t *)(mtag + 1);
 			m_tag_delete(m, mtag);
 		}
 		ip_output(m, NULL, NULL, flags, NULL, NULL, ipsecflowinfo);
Index: netinet/ip_ipsp.c
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/ip_ipsp.c,v
diff -u -p -r1.281 ip_ipsp.c
--- netinet/ip_ipsp.c	8 Jul 2025 00:47:41 -0000	1.281
+++ netinet/ip_ipsp.c	17 Jul 2026 15:23:51 -0000
@@ -109,7 +109,7 @@ int ipsec_ids_idle = 100;		/* keep free 
 struct pool tdb_pool;
 
 /* Protected by the NET_LOCK(). */
-u_int32_t ipsec_ids_next_flow = 1;		/* [F] may not be zero */
+uint32_t ipsec_ids_next_flow = 1;		/* [F] may not be zero */
 struct ipsec_ids_tree ipsec_ids_tree;		/* [F] */
 struct ipsec_ids_flows ipsec_ids_flows;		/* [F] */
 struct ipsec_policy_head ipsec_policy_head =
@@ -1235,7 +1235,7 @@ struct ipsec_ids *
 ipsp_ids_insert(struct ipsec_ids *ids)
 {
 	struct ipsec_ids *found;
-	u_int32_t start_flow;
+	uint32_t start_flow;
 
 	mtx_enter(&ipsec_flows_mtx);
 
@@ -1276,7 +1276,7 @@ ipsp_ids_insert(struct ipsec_ids *ids)
 }
 
 struct ipsec_ids *
-ipsp_ids_lookup(u_int32_t ipsecflowinfo)
+ipsp_ids_lookup(uint32_t ipsecflowinfo)
 {
 	struct ipsec_ids	key;
 	struct ipsec_ids	*ids;
Index: netinet/ip_ipsp.h
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/ip_ipsp.h,v
diff -u -p -r1.249 ip_ipsp.h
--- netinet/ip_ipsp.h	9 May 2025 19:53:41 -0000	1.249
+++ netinet/ip_ipsp.h	17 Jul 2026 15:24:21 -0000
@@ -248,7 +248,7 @@ struct ipsec_ids {
 	RBT_ENTRY(ipsec_ids)	id_node_flow;	/* [F] */
 	struct ipsec_id		*id_local;	/* [I] */
 	struct ipsec_id		*id_remote;	/* [I] */
-	u_int32_t		id_flow;	/* [I] */
+	uint32_t		id_flow;	/* [I] */
 	u_int			id_refcount;	/* [F] */
 	u_int			id_gc_ttl;	/* [F] */
 };
@@ -711,7 +711,7 @@ int	ipsp_aux_match(struct tdb *, struct 
 	    struct sockaddr_encap *, struct sockaddr_encap *);
 int	ipsp_ids_match(struct ipsec_ids *, struct ipsec_ids *);
 struct ipsec_ids *ipsp_ids_insert(struct ipsec_ids *);
-struct ipsec_ids *ipsp_ids_lookup(u_int32_t);
+struct ipsec_ids *ipsp_ids_lookup(uint32_t);
 void	ipsp_ids_free(struct ipsec_ids *);
 
 void	ipsp_init(void);
Index: netinet/ip_output.c
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/ip_output.c,v
diff -u -p -r1.418 ip_output.c
--- netinet/ip_output.c	16 Jul 2026 12:21:40 -0000	1.418
+++ netinet/ip_output.c	17 Jul 2026 15:11:46 -0000
@@ -83,7 +83,7 @@ static u_int16_t in_cksum_phdr(u_int32_t
 void in_delayed_cksum(struct mbuf *);
 
 int ip_output_ipsec_lookup(struct mbuf *m, int hlen,
-    const struct ipsec_level *seclevel, struct tdb **, int ipsecflowinfo);
+    const struct ipsec_level *seclevel, struct tdb **, uint32_t ipsecflowinfo);
 void ip_output_ipsec_pmtu_update(struct tdb *, struct route *, struct in_addr,
     int);
 int ip_output_ipsec_send(struct tdb *, struct mbuf *, struct route *, u_int,
@@ -98,7 +98,7 @@ int ip_output_ipsec_send(struct tdb *, s
 int
 ip_output(struct mbuf *m, struct mbuf *opt, struct route *ro, int flags,
     struct ip_moptions *imo, const struct ipsec_level *seclevel,
-    u_int32_t ipsecflowinfo)
+    uint32_t ipsecflowinfo)
 {
 	struct ip *ip;
 	struct ifnet *ifp = NULL;
@@ -501,7 +501,8 @@ bad:
 #ifdef IPSEC
 int
 ip_output_ipsec_lookup(struct mbuf *m, int hlen,
-    const struct ipsec_level *seclevel, struct tdb **tdbout, int ipsecflowinfo)
+    const struct ipsec_level *seclevel, struct tdb **tdbout,
+    uint32_t ipsecflowinfo)
 {
 	struct m_tag *mtag;
 	struct tdb_ident *tdbi;
Index: netinet/ip_var.h
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/ip_var.h,v
diff -u -p -r1.125 ip_var.h
--- netinet/ip_var.h	16 Jul 2026 12:21:40 -0000	1.125
+++ netinet/ip_var.h	17 Jul 2026 15:14:17 -0000
@@ -251,7 +251,7 @@ int	 ip_mrouter_active(u_int);
 int	 ip_mforward(struct mbuf *, struct ifnet *, int);
 int	 ip_optcopy(struct ip *, struct ip *);
 int	 ip_output(struct mbuf *, struct mbuf *, struct route *, int,
-	    struct ip_moptions *, const struct ipsec_level *, u_int32_t);
+	    struct ip_moptions *, const struct ipsec_level *, uint32_t);
 void	 ip_randomid_init(void);
 u_int16_t
 	 ip_randomid(void);
Index: netinet/udp_usrreq.c
===================================================================
RCS file: /data/mirror/openbsd/cvs/src/sys/netinet/udp_usrreq.c,v
diff -u -p -r1.350 udp_usrreq.c
--- netinet/udp_usrreq.c	24 Oct 2025 15:09:56 -0000	1.350
+++ netinet/udp_usrreq.c	17 Jul 2026 15:20:28 -0000
@@ -171,7 +171,7 @@ struct	cpumem *udpcounters;
 
 void	udp_sbappend(struct inpcb *, struct mbuf *, struct ip *,
 	    struct ip6_hdr *, int, struct udphdr *, struct sockaddr *,
-	    u_int32_t, struct netstack *);
+	    uint32_t, struct netstack *);
 int	udp_output(struct inpcb *, struct mbuf *, struct mbuf *, struct mbuf *);
 void	udp_notify(struct inpcb *, int);
 int	udp_sysctl_udpstat(void *, size_t *, void *);
@@ -209,7 +209,7 @@ udp_input(struct mbuf **mp, int *offp, i
 #endif /* INET6 */
 	} srcsa, dstsa;
 	struct ip6_hdr *ip6 = NULL;
-	u_int32_t ipsecflowinfo = 0;
+	uint32_t ipsecflowinfo = 0;
 #ifdef IPSEC
 	int udpencap_port_local = atomic_load_int(&udpencap_port);
 #endif /* IPSEC */
@@ -648,7 +648,7 @@ bad:
 void
 udp_sbappend(struct inpcb *inp, struct mbuf *m, struct ip *ip,
     struct ip6_hdr *ip6, int hlen, struct udphdr *uh,
-    struct sockaddr *srcaddr, u_int32_t ipsecflowinfo,
+    struct sockaddr *srcaddr, uint32_t ipsecflowinfo,
     struct netstack *ns)
 {
 	struct socket *so = inp->inp_socket;
@@ -943,7 +943,7 @@ udp_output(struct inpcb *inp, struct mbu
 {
 	struct sockaddr_in *sin = NULL;
 	struct udpiphdr *ui;
-	u_int32_t ipsecflowinfo = 0;
+	uint32_t ipsecflowinfo = 0;
 	struct sockaddr_in src_sin;
 	int len = m->m_pkthdr.len;
 	struct in_addr laddr;
@@ -997,7 +997,7 @@ udp_output(struct inpcb *inp, struct mbu
 			    cm->cmsg_len == CMSG_LEN(sizeof(ipsecflowinfo)) &&
 			    cm->cmsg_level == IPPROTO_IP &&
 			    cm->cmsg_type == IP_IPSECFLOWINFO) {
-				ipsecflowinfo = *(u_int32_t *)CMSG_DATA(cm);
+				ipsecflowinfo = *(uint32_t *)CMSG_DATA(cm);
 			} else
 #endif
 			if (cm->cmsg_len == CMSG_LEN(sizeof(struct in_addr)) &&