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From c8e438d610bc8af109c19479ee0f568b271d4030 Mon Sep 17 00:00:00 2001
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From: Petr Machata <petrm@mellanox.com>
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Date: Mon, 9 Jul 2018 21:43:41 +0300
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Subject: [PATCH] lldpad: Support DSCP selectors in APP TLV's
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The P802.1Qcd/D2.1 standard draft introduces a new APP TLV: DSCP, with
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selector value of 5. Don't reject APP TLV's with selector 5, and
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sanitize the PID value to not be out of bounds for DSCP.
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Signed-off-by: Petr Machata <petrm@mellanox.com>
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---
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lldp_8021qaz_cmds.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/lldp_8021qaz_cmds.c b/lldp_8021qaz_cmds.c
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index 8cb225e..e017e2a 100644
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--- a/lldp_8021qaz_cmds.c
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+++ b/lldp_8021qaz_cmds.c
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@@ -1290,7 +1290,7 @@ static int _set_arg_app(struct cmd *cmd, char *args, char *arg_value,
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obuf_len - strlen(obuf) - 2);
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goto err;
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}
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- if (sel < 1 || sel > 4) {
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+ if (sel < 1 || sel > 5) {
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strncat(obuf, ": selector out of range",
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obuf_len - strlen(obuf) - 2);
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goto err;
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@@ -1305,6 +1305,11 @@ static int _set_arg_app(struct cmd *cmd, char *args, char *arg_value,
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obuf_len - strlen(obuf) - 2);
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goto err;
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}
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+ if (sel == 5 && pid > 63) {
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+ strncat(obuf, ": DSCP > 63",
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+ obuf_len - strlen(obuf) - 2);
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+ goto err;
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+ }
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free(parse);
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--
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2.21.0
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