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Subject[PATCH V2 net-next 3/3] net: qrtr: Handle IPCR control port format of older targets
Date
The destination port value in the IPCR control buffer on older
targets is 0xFFFF. Handle the same by updating the dst_port to
QRTR_PORT_CTRL.

Signed-off-by: Vignesh Viswanathan <quic_viswanat@quicinc.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
---
net/qrtr/af_qrtr.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c
index 78beb74146e7..41ece61eb57a 100644
--- a/net/qrtr/af_qrtr.c
+++ b/net/qrtr/af_qrtr.c
@@ -23,6 +23,8 @@
#define QRTR_EPH_PORT_RANGE \
XA_LIMIT(QRTR_MIN_EPH_SOCKET, QRTR_MAX_EPH_SOCKET)

+#define QRTR_PORT_CTRL_LEGACY 0xffff
+
/**
* struct qrtr_hdr_v1 - (I|R)PCrouter packet header version 1
* @version: protocol version
@@ -495,6 +497,9 @@ int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len)
goto err;
}

+ if (cb->dst_port == QRTR_PORT_CTRL_LEGACY)
+ cb->dst_port = QRTR_PORT_CTRL;
+
if (!size || len != ALIGN(size, 4) + hdrlen)
goto err;

--
2.41.0
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