netdev - [PATCH iproute2 net-next] bridge: fdb: add support for sticky flag

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 27 Sep 2018 16:35:12 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     netdev@...r.kernel.org
Cc:     roopa@...ulusnetworks.com,
        Nikolay Aleksandrov <nikolay@...ulusnetworks.com>,
        David Ahern <dsahern@...il.com>
Subject: [PATCH iproute2 net-next] bridge: fdb: add support for sticky flag

Add support for the new sticky flag that can be set on fdbs and update the
man page.

CC: David Ahern <dsahern@...il.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
---
 bridge/fdb.c      | 9 +++++++--
 man/man8/bridge.8 | 6 +++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/bridge/fdb.c b/bridge/fdb.c
index 4dbc894ceab9..828fdab264cb 100644
--- a/bridge/fdb.c
+++ b/bridge/fdb.c
@@ -37,8 +37,8 @@ static void usage(void)
 	fprintf(stderr,
 		"Usage: bridge fdb { add | append | del | replace } ADDR dev DEV\n"
 		"              [ self ] [ master ] [ use ] [ router ] [ extern_learn ]\n"
-		"              [ local | static | dynamic ] [ dst IPADDR ] [ vlan VID ]\n"
-		"              [ port PORT] [ vni VNI ] [ via DEV ]\n"
+		"              [ sticky ] [ local | static | dynamic ] [ dst IPADDR ]\n"
+		"              [ vlan VID ] [ port PORT] [ vni VNI ] [ via DEV ]\n"
 		"       bridge fdb [ show [ br BRDEV ] [ brport DEV ] [ vlan VID ] [ state STATE ] ]\n");
 	exit(-1);
 }
@@ -101,6 +101,9 @@ static void fdb_print_flags(FILE *fp, unsigned int flags)
 	if (flags & NTF_MASTER)
 		print_string(PRINT_ANY, NULL, "%s ", "master");
 
+	if (flags & NTF_STICKY)
+		print_string(PRINT_ANY, NULL, "%s ", "sticky");
+
 	close_json_array(PRINT_JSON, NULL);
 }
 
@@ -414,6 +417,8 @@ static int fdb_modify(int cmd, int flags, int argc, char **argv)
 			req.ndm.ndm_flags |= NTF_USE;
 		} else if (matches(*argv, "extern_learn") == 0) {
 			req.ndm.ndm_flags |= NTF_EXT_LEARNED;
+		} else if (matches(*argv, "sticky") == 0) {
+			req.ndm.ndm_flags |= NTF_STICKY;
 		} else {
 			if (strcmp(*argv, "to") == 0)
 				NEXT_ARG();
diff --git a/man/man8/bridge.8 b/man/man8/bridge.8
index 53cd3d0a3d93..c0415bc646df 100644
--- a/man/man8/bridge.8
+++ b/man/man8/bridge.8
@@ -63,7 +63,7 @@ bridge \- show / manipulate bridge addresses and devices
 .B dev
 .IR DEV " { "
 .BR local " | " static " | " dynamic " } [ "
-.BR self " ] [ " master " ] [ " router " ] [ " use " ] [ " extern_learn " ] [ "
+.BR self " ] [ " master " ] [ " router " ] [ " use " ] [ " extern_learn " ] [ " sticky " ] [ "
 .B dst
 .IR IPADDR " ] [ "
 .B vni
@@ -448,6 +448,10 @@ indicate to the kernel that an entry was hardware or user-space
 controller learnt dynamic entry. Kernel will not age such an entry.
 .sp
 
+.B sticky
+- this entry will not change its port due to learning.
+.sp
+
 .in -8
 The next command line parameters apply only
 when the specified device
-- 
2.11.0