From 948fa2d115c553ae32aced66e0f00f89245dc05e Mon Sep 17 00:00:00 2001 From: Erik Hugne Date: Thu, 5 Mar 2015 10:23:48 +0100 Subject: [PATCH] tipc: increase size of tipc discovery messages The payload area following the TIPC discovery message header is an opaque area defined by the media. INT_H_SIZE was enough for Ethernet/IB/IPv4 but needs to be expanded to carry IPv6 addressing information. Signed-off-by: Erik Hugne Signed-off-by: David S. Miller --- net/tipc/discover.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/net/tipc/discover.c b/net/tipc/discover.c index feef3753615d..5967506833ce 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -86,7 +86,7 @@ static void tipc_disc_init_msg(struct net *net, struct sk_buff *buf, u32 type, msg = buf_msg(buf); tipc_msg_init(tn->own_addr, msg, LINK_CONFIG, type, - INT_H_SIZE, dest_domain); + MAX_H_SIZE, dest_domain); msg_set_non_seq(msg, 1); msg_set_node_sig(msg, tn->random); msg_set_dest_domain(msg, dest_domain); @@ -249,7 +249,7 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *buf, /* Send response, if necessary */ if (respond && (mtyp == DSC_REQ_MSG)) { - rbuf = tipc_buf_acquire(INT_H_SIZE); + rbuf = tipc_buf_acquire(MAX_H_SIZE); if (rbuf) { tipc_disc_init_msg(net, rbuf, DSC_RESP_MSG, bearer); tipc_bearer_send(net, bearer->identity, rbuf, &maddr); @@ -359,8 +359,7 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *b_ptr, req = kmalloc(sizeof(*req), GFP_ATOMIC); if (!req) return -ENOMEM; - - req->buf = tipc_buf_acquire(INT_H_SIZE); + req->buf = tipc_buf_acquire(MAX_H_SIZE); if (!req->buf) { kfree(req); return -ENOMEM; -- 2.39.5