netdev - [wpan-tools v2 1/7] iwpan: Fix the channels printing

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Date:   Wed, 12 Jan 2022 18:35:23 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Alexander Aring <alex.aring@...il.com>,
        Stefan Schmidt <stefan@...enfreihafen.org>,
        linux-wpan@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org
Cc:     David Girault <david.girault@...vo.com>,
        Romuald Despres <romuald.despres@...vo.com>,
        Frederic Blain <frederic.blain@...vo.com>,
        Nicolas Schodet <nico@...fr.eu.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        linux-wireless@...r.kernel.org,
        Romuald Despres <Romuald.Despres@...vo.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [wpan-tools v2 1/7] iwpan: Fix the channels printing

From: Romuald Despres <Romuald.Despres@...vo.com>

The presence of a channel capability is checked against the tb_msg
netlink attributes array which is the root one, while here we are
looking for channel capabilities, themselves being nested and parsed
into tb_caps. Use tb_caps instead of tb_msg here otherwise we are
accessing a random index in the upper attributes list.

Signed-off-by: Romuald Despres <Romuald.Despres@...vo.com>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
---
 src/info.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/info.c b/src/info.c
index f85690c..8ed5e4f 100644
--- a/src/info.c
+++ b/src/info.c
@@ -342,7 +342,7 @@ static int print_phy_handler(struct nl_msg *msg, void *arg)
 			printf("\b \n");
 		}
 
-		if (tb_msg[NL802154_CAP_ATTR_CHANNELS]) {
+		if (tb_caps[NL802154_CAP_ATTR_CHANNELS]) {
 			int counter = 0;
 			int rem_pages;
 			struct nlattr *nl_pages;
-- 
2.27.0