netdev - [PATCH v2 2/5] net: qrtr: Allow forwarded services

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Date:   Fri,  6 Nov 2020 18:33:27 +0100
From:   Loic Poulain <loic.poulain@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     bjorn.andersson@...aro.org, manivannan.sadhasivam@...aro.org,
        cjhuang@...eaurora.org, netdev@...r.kernel.org,
        Loic Poulain <loic.poulain@...aro.org>
Subject: [PATCH v2 2/5] net: qrtr: Allow forwarded services

A remote endpoint (immediate neighbors node) can forward services
from other nodes (non-immadiate), in that case ctrl packet node ID
(offering distant service) can differ from the qrtr source node
(forwarding the packet).

Signed-off-by: Loic Poulain <loic.poulain@...aro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 net/qrtr/ns.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c
index d8252fd..d542d8f 100644
--- a/net/qrtr/ns.c
+++ b/net/qrtr/ns.c
@@ -469,10 +469,6 @@ static int ctrl_cmd_new_server(struct sockaddr_qrtr *from,
 		port = from->sq_port;
 	}
 
-	/* Don't accept spoofed messages */
-	if (from->sq_node != node_id)
-		return -EINVAL;
-
 	srv = server_add(service, instance, node_id, port);
 	if (!srv)
 		return -EINVAL;
@@ -511,10 +507,6 @@ static int ctrl_cmd_del_server(struct sockaddr_qrtr *from,
 		port = from->sq_port;
 	}
 
-	/* Don't accept spoofed messages */
-	if (from->sq_node != node_id)
-		return -EINVAL;
-
 	/* Local servers may only unregister themselves */
 	if (from->sq_node == qrtr_ns.local_node && from->sq_port != port)
 		return -EINVAL;
-- 
2.7.4