git: f47e5a92edd6 - stable/14 - ifconfig: Add an allmulti verb

The branch stable/14 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=f47e5a92edd6840fca6267649b1304c39fbbcc8f

commit f47e5a92edd6840fca6267649b1304c39fbbcc8f
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2024-09-06 16:56:58 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2024-09-20 11:39:16 +0000

    ifconfig: Add an allmulti verb
    
    Similar to "promisc", this allows the IFF_ALLMULTI flag to be toggled
    from userspace if it happens to be useful to disable multicast packet
    filtering.  One use-case is when implementing IPv6 neighbour discovery
    over netmap.
    
    Reviewed by:    zlei, glebius
    MFC after:      2 weeks
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D46525
    
    (cherry picked from commit 00c9a6806c9cf3357b62f6708e5acd1ffd166613)
---
 sbin/ifconfig/ifconfig.8         | 4 ++++
 sbin/ifconfig/ifconfig.c         | 2 ++
 sbin/ifconfig/ifconfig_netlink.c | 2 +-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 259be41bf94b..2f87ae8b8a5f 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -502,6 +502,10 @@ Enable driver dependent debugging code; usually, this turns on
 extra console error logging.
 .It Fl debug
 Disable driver dependent debugging code.
+.It Cm allmulti
+Enable promiscuous mode for multicast packets.
+.It Fl allmulti
+Disable promiscuous mode for multicast packets.
 .It Cm promisc
 Put interface into permanently promiscuous mode.
 .It Fl promisc
diff --git a/sbin/ifconfig/ifconfig.c b/sbin/ifconfig/ifconfig.c
index 402967d405fd..5cf1ae6b79b7 100644
--- a/sbin/ifconfig/ifconfig.c
+++ b/sbin/ifconfig/ifconfig.c
@@ -2019,6 +2019,8 @@ static struct cmd basic_cmds[] = {
 	DEF_CMD_ARG("descr",			setifdescr),
 	DEF_CMD("-description",	0,		unsetifdescr),
 	DEF_CMD("-descr",	0,		unsetifdescr),
+	DEF_CMD("allmulti",	IFF_PALLMULTI,	setifflags),
+	DEF_CMD("-allmulti",	IFF_PALLMULTI,	clearifflags),
 	DEF_CMD("promisc",	IFF_PPROMISC,	setifflags),
 	DEF_CMD("-promisc",	IFF_PPROMISC,	clearifflags),
 	DEF_CMD("add",		IFF_UP,		notealias),
diff --git a/sbin/ifconfig/ifconfig_netlink.c b/sbin/ifconfig/ifconfig_netlink.c
index bb0d242f21f6..03fe1e418082 100644
--- a/sbin/ifconfig/ifconfig_netlink.c
+++ b/sbin/ifconfig/ifconfig_netlink.c
@@ -77,7 +77,7 @@ static const char	*IFFBITS[] = {
 	"STICKYARP",		/* 20:0x100000 IFF_STICKYARP*/
 	"DYING",		/* 21:0x200000 IFF_DYING*/
 	"RENAMING",		/* 22:0x400000 IFF_RENAMING*/
-	"NOGROUP",		/* 23:0x800000 IFF_NOGROUP*/
+	"PALLMULTI",		/* 23:0x800000 IFF_PALLMULTI*/
 	"LOWER_UP",		/* 24:0x1000000 IFF_NETLINK_1*/
 };