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[NETFILTER]: PPTP conntrack: remove unnecessary cid/pcid header pointers
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Just the values are needed, not the memory locations.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Patrick McHardy authored and David S. Miller committed Sep 22, 2006
1 parent 6013c0a commit 857c06d
Showing 1 changed file with 28 additions and 28 deletions.
56 changes: 28 additions & 28 deletions net/ipv4/netfilter/ip_conntrack_helper_pptp.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -334,7 +334,7 @@ pptp_inbound_pkt(struct sk_buff **pskb,
union pptp_ctrl_union _pptpReq, *pptpReq;
struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
u_int16_t msg;
__be16 *cid, *pcid;
__be16 cid, pcid;

ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
if (!ctlh) {
Expand Down Expand Up @@ -414,23 +414,23 @@ pptp_inbound_pkt(struct sk_buff **pskb,
break;
}

cid = &pptpReq->ocack.callID;
pcid = &pptpReq->ocack.peersCallID;
cid = pptpReq->ocack.callID;
pcid = pptpReq->ocack.peersCallID;

info->pac_call_id = *cid;
info->pac_call_id = cid;

if (info->pns_call_id != *pcid) {
if (info->pns_call_id != pcid) {
DEBUGP("%s for unknown callid %u\n",
pptp_msg_name[msg], ntohs(*pcid));
pptp_msg_name[msg], ntohs(pcid));
break;
}

DEBUGP("%s, CID=%X, PCID=%X\n", pptp_msg_name[msg],
ntohs(*cid), ntohs(*pcid));
ntohs(cid), ntohs(pcid));

info->cstate = PPTP_CALL_OUT_CONF;

exp_gre(ct, *cid, *pcid);
exp_gre(ct, cid, pcid);
break;

case PPTP_IN_CALL_REQUEST:
Expand All @@ -444,10 +444,10 @@ pptp_inbound_pkt(struct sk_buff **pskb,
DEBUGP("%s but no session\n", pptp_msg_name[msg]);
break;
}
pcid = &pptpReq->icack.peersCallID;
DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
pcid = pptpReq->icack.peersCallID;
DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
info->cstate = PPTP_CALL_IN_REQ;
info->pac_call_id = *pcid;
info->pac_call_id = pcid;
break;

case PPTP_IN_CALL_CONNECT:
Expand All @@ -468,20 +468,20 @@ pptp_inbound_pkt(struct sk_buff **pskb,
break;
}

pcid = &pptpReq->iccon.peersCallID;
cid = &info->pac_call_id;
pcid = pptpReq->iccon.peersCallID;
cid = info->pac_call_id;

if (info->pns_call_id != *pcid) {
if (info->pns_call_id != pcid) {
DEBUGP("%s for unknown CallID %u\n",
pptp_msg_name[msg], ntohs(*pcid));
pptp_msg_name[msg], ntohs(pcid));
break;
}

DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
info->cstate = PPTP_CALL_IN_CONF;

/* we expect a GRE connection from PAC to PNS */
exp_gre(ct, *cid, *pcid);
exp_gre(ct, cid, pcid);
break;

case PPTP_CALL_DISCONNECT_NOTIFY:
Expand All @@ -491,8 +491,8 @@ pptp_inbound_pkt(struct sk_buff **pskb,
}

/* server confirms disconnect */
cid = &pptpReq->disc.callID;
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*cid));
cid = pptpReq->disc.callID;
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
info->cstate = PPTP_CALL_NONE;

/* untrack this call id, unexpect GRE packets */
Expand Down Expand Up @@ -534,7 +534,7 @@ pptp_outbound_pkt(struct sk_buff **pskb,
union pptp_ctrl_union _pptpReq, *pptpReq;
struct ip_ct_pptp_master *info = &ct->help.ct_pptp_info;
u_int16_t msg;
__be16 *cid, *pcid;
__be16 cid, pcid;

ctlh = skb_header_pointer(*pskb, nexthdr_off, sizeof(_ctlh), &_ctlh);
if (!ctlh)
Expand Down Expand Up @@ -580,9 +580,9 @@ pptp_outbound_pkt(struct sk_buff **pskb,
}
info->cstate = PPTP_CALL_OUT_REQ;
/* track PNS call id */
cid = &pptpReq->ocreq.callID;
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*cid));
info->pns_call_id = *cid;
cid = pptpReq->ocreq.callID;
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
info->pns_call_id = cid;
break;
case PPTP_IN_CALL_REPLY:
if (reqlen < sizeof(_pptpReq.icack)) {
Expand All @@ -601,16 +601,16 @@ pptp_outbound_pkt(struct sk_buff **pskb,
info->cstate = PPTP_CALL_NONE;
break;
}
pcid = &pptpReq->icack.peersCallID;
if (info->pac_call_id != *pcid) {
pcid = pptpReq->icack.peersCallID;
if (info->pac_call_id != pcid) {
DEBUGP("%s for unknown call %u\n",
pptp_msg_name[msg], ntohs(*pcid));
pptp_msg_name[msg], ntohs(pcid));
break;
}
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(*pcid));
DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(pcid));
/* part two of the three-way handshake */
info->cstate = PPTP_CALL_IN_REP;
info->pns_call_id = pptpReq->icack.callID;
info->pns_call_id = pcid;
break;

case PPTP_CALL_CLEAR_REQUEST:
Expand Down

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