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authorPatrick McHardy <kaber@trash.net>2006-09-20 12:10:52 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-09-22 15:20:18 -0700
commit62fbe9c82b20197a4f9c54f7add5d368418ba277 (patch)
tree8dac2b3d2e0fe0bced40b4c12656070023eb4ac2 /net
parent750a58423309b56751076329e9edf61b93213e0f (diff)
downloadlinux-62fbe9c82b20197a4f9c54f7add5d368418ba277.tar.bz2
[NETFILTER]: PPTP conntrack: fix PPTP_IN_CALL message types
Fix incorrectly used message types and call IDs: - PPTP_IN_CALL_REQUEST (PAC->PNS) contains a PptpInCallRequest (icreq) message and the PAC call ID - PPTP_IN_CALL_REPLY (PNS->PAC) contains a PptpInCallReply (icack) message and the PNS call ID Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/netfilter/ip_conntrack_helper_pptp.c12
-rw-r--r--net/ipv4/netfilter/ip_nat_helper_pptp.c2
2 files changed, 8 insertions, 6 deletions
diff --git a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
index 5cb6b61cd171..b0225b65ca35 100644
--- a/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
+++ b/net/ipv4/netfilter/ip_conntrack_helper_pptp.c
@@ -355,10 +355,10 @@ pptp_inbound_pkt(struct sk_buff **pskb,
if (info->sstate != PPTP_SESSION_CONFIRMED)
goto invalid;
- pcid = pptpReq->icack.peersCallID;
- DEBUGP("%s, PCID=%X\n", pptp_msg_name[msg], ntohs(pcid));
+ cid = pptpReq->icreq.callID;
+ DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(cid));
info->cstate = PPTP_CALL_IN_REQ;
- info->pac_call_id = pcid;
+ info->pac_call_id = cid;
break;
case PPTP_IN_CALL_CONNECT:
@@ -458,15 +458,17 @@ pptp_outbound_pkt(struct sk_buff **pskb,
info->cstate != PPTP_CALL_IN_REP)
goto invalid;
+ cid = pptpReq->icack.callID;
pcid = pptpReq->icack.peersCallID;
if (info->pac_call_id != pcid)
goto invalid;
- DEBUGP("%s, CID=%X\n", pptp_msg_name[msg], ntohs(pcid));
+ DEBUGP("%s, CID=%X PCID=%X\n", pptp_msg_name[msg],
+ ntohs(cid), ntohs(pcid));
if (pptpReq->icack.resultCode == PPTP_INCALL_ACCEPT) {
/* part two of the three-way handshake */
info->cstate = PPTP_CALL_IN_REP;
- info->pns_call_id = pcid;
+ info->pns_call_id = cid;
} else
info->cstate = PPTP_CALL_NONE;
break;
diff --git a/net/ipv4/netfilter/ip_nat_helper_pptp.c b/net/ipv4/netfilter/ip_nat_helper_pptp.c
index 84f6bd09fcd4..2ff578807123 100644
--- a/net/ipv4/netfilter/ip_nat_helper_pptp.c
+++ b/net/ipv4/netfilter/ip_nat_helper_pptp.c
@@ -172,7 +172,7 @@ pptp_outbound_pkt(struct sk_buff **pskb,
ct_pptp_info->pns_call_id = new_callid;
break;
case PPTP_IN_CALL_REPLY:
- cid_off = offsetof(union pptp_ctrl_union, icreq.callID);
+ cid_off = offsetof(union pptp_ctrl_union, icack.callID);
break;
case PPTP_CALL_CLEAR_REQUEST:
cid_off = offsetof(union pptp_ctrl_union, clrreq.callID);