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authorAlan Somers <asomers@FreeBSD.org>2022-07-24 15:06:39 +0000
committerAlan Somers <asomers@FreeBSD.org>2022-08-20 03:07:55 +0000
commitbaa6a68cbe47b257c771e9b7f7254750df46bd3f (patch)
treebc8ef7917c589ce36364d80369b3da31cb811879
parent5f46ec779fe7a8c01f7ce57948bdcef0186dade8 (diff)
downloadsrc-baa6a68cbe47b257c771e9b7f7254750df46bd3f.tar.gz
src-baa6a68cbe47b257c771e9b7f7254750df46bd3f.zip
ip6(4): document IP_ORIGDSTADDR
The option was originally added in r313524, but with incomplete documentation. Reviewed by: karels, gbe (manpages) Differential Revision: https://reviews.freebsd.org/D35890 (cherry picked from commit a043594c211fd36228f4d84273885da50bb7f59c)
-rw-r--r--share/man/man4/ip6.418
1 files changed, 12 insertions, 6 deletions
diff --git a/share/man/man4/ip6.4 b/share/man/man4/ip6.4
index 9c94b3def444..9dd9007866a2 100644
--- a/share/man/man4/ip6.4
+++ b/share/man/man4/ip6.4
@@ -30,7 +30,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 30, 2021
+.Dd July 24, 2022
.Dt IP6 4
.Os
.Sh NAME
@@ -156,9 +156,6 @@ datagrams sent on this socket.
.\" .It Dv IPV6_RECVDSTADDR Fa "int *"
.\" Get or set the status of whether datagrams are received with
.\" destination addresses.
-.\" .It Dv IPV6_ORIGDSTADDR Fa "int *"
-.\" Get or set the status of whether datagrams are received with
-.\" destination addresses and destination ports.
.\" .It Dv IPV6_RETOPTS
.\" Get or set IPv6 options.
.It Dv IPV6_MULTICAST_IF Fa "u_int *"
@@ -227,6 +224,14 @@ Note that setting to this value requires superuser privileges.
Drop membership from the associated multicast group.
Memberships are automatically dropped when the socket is closed or when
the process exits.
+.It Dv IPV6_ORIGDSTADDR Fa "int *"
+Get or set whether a datagram's original destination address and port are
+returned as ancillary data along with the payload in subsequent
+.Xr recvmsg 2
+calls.
+The information is stored in the the ancillary data as a
+.Tn sockaddr_in6
+structure.
.It Dv IPV6_PORTRANGE Fa "int *"
Get or set the allocation policy of ephemeral ports for when the kernel
automatically binds a local address to this socket.
@@ -420,8 +425,9 @@ The
.Dv IPV6_HOPLIMIT ,
.Dv IPV6_HOPOPTS ,
.Dv IPV6_DSTOPTS ,
+.Dv IPV6_RTHDR ,
and
-.Dv IPV6_RTHDR
+.Dv IPV6_ORIGDSTADDR
options will return ancillary data along with payload contents in subsequent
.Xr recvmsg 2
calls with
@@ -432,7 +438,7 @@ and
.Va cmsg_type
set to respective option name value (e.g.,
.Dv IPV6_HOPTLIMIT ) .
-These options may also be used directly as ancillary
+Some of these options may also be used directly as ancillary
.Va cmsg_type
values in
.Xr sendmsg 2