diff mbox series

[net-next,v2,11/21] rxrpc: Don't pick values out of the wire header when setting up security

Message ID 20240304084322.705539-12-dhowells@redhat.com
State New
Headers
Series rxrpc: Miscellaneous changes and make use of MSG_SPLICE_PAGES |

Commit Message

David Howells March 4, 2024, 8:43 a.m. UTC 
  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@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: Paolo Abeni <pabeni@redhat.com>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
---
 net/rxrpc/rxkad.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/net/rxrpc/rxkad.c b/net/rxrpc/rxkad.c
index e451ac90bfee..ef0849c8329c 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);