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tipc: move message validation function to msg.c

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The function link_buf_validate() is in reality re-entrant and context
independent, and will in later commits be called from several locations.
Therefore, we move it to msg.c, make it outline and rename the it to
tipc_msg_validate().

We also redesign the function to make proper use of pskb_may_pull()

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy 2015-03-13 16:08:06 -04:00 • committed by David S. Miller
parent 7764d6e83d
commit cf2157f88a
3 changed files with 47 additions and 60 deletions
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5
net/tipc/msg.h
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@ -1,7 +1,7 @@
/*
* net/tipc/msg.h: Include file for TIPC message header routines
*
* Copyright (c) 2000-2007, 2014, Ericsson AB
* Copyright (c) 2000-2007, 2014-2015 Ericsson AB
* Copyright (c) 2005-2008, 2010-2011, Wind River Systems
* All rights reserved.
*
@ -92,7 +92,7 @@ struct plist;
struct tipc_skb_cb {
void *handle;
struct sk_buff *tail;
bool deferred;
bool validated;
bool wakeup_pending;
bool bundling;
u16 chain_sz;
@ -758,6 +758,7 @@ static inline u32 msg_tot_origport(struct tipc_msg *m)
}
struct sk_buff *tipc_buf_acquire(u32 size);
bool tipc_msg_validate(struct sk_buff *skb);
bool tipc_msg_reverse(u32 own_addr, struct sk_buff *buf, u32 *dnode,
int err);
void tipc_msg_init(u32 own_addr, struct tipc_msg *m, u32 user, u32 type,