6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: David Howells <dhowells@xxxxxxxxxx>
[ Upstream commit a1c9af4d4467354132417c2d8db10d6e928a7f77 ]
Don't pick values out of the wire header in rxkad when setting up DATA
packet security, but rather use other sources. This makes it easier to get
rid of txb->wire.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
cc: Eric Dumazet <edumazet@xxxxxxxxxx>
cc: Jakub Kicinski <kuba@xxxxxxxxxx>
cc: Paolo Abeni <pabeni@xxxxxxxxxx>
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
net/rxrpc/rxkad.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index 6b32d61d4cdc4..ad6c57a9f27c7 100644
--- a/net/rxrpc/rxkad.c
+++ b/net/rxrpc/rxkad.c
@@ -259,7 +259,7 @@ static int rxkad_secure_packet_auth(const struct rxrpc_call *call,
_enter("");
- check = txb->seq ^ ntohl(txb->wire.callNumber);
+ check = txb->seq ^ call->call_id;
hdr->data_size = htonl((u32)check << 16 | txb->len);
txb->len += sizeof(struct rxkad_level1_hdr);
@@ -302,7 +302,7 @@ static int rxkad_secure_packet_encrypt(const struct rxrpc_call *call,
_enter("");
- check = txb->seq ^ ntohl(txb->wire.callNumber);
+ check = txb->seq ^ call->call_id;
rxkhdr->data_size = htonl(txb->len | (u32)check << 16);
rxkhdr->checksum = 0;
@@ -362,9 +362,9 @@ static int rxkad_secure_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)
memcpy(&iv, call->conn->rxkad.csum_iv.x, sizeof(iv));
/* calculate the security checksum */
- x = (ntohl(txb->wire.cid) & RXRPC_CHANNELMASK) << (32 - RXRPC_CIDSHIFT);
+ x = (call->cid & RXRPC_CHANNELMASK) << (32 - RXRPC_CIDSHIFT);
x |= txb->seq & 0x3fffffff;
- crypto.buf[0] = txb->wire.callNumber;
+ crypto.buf[0] = htonl(call->call_id);
crypto.buf[1] = htonl(x);
sg_init_one(&sg, crypto.buf, 8);
--
2.43.0
