diff options
Diffstat (limited to 'lib/libalias/alias_db.c')
| -rw-r--r-- | lib/libalias/alias_db.c | 167 |
1 files changed, 111 insertions, 56 deletions
diff --git a/lib/libalias/alias_db.c b/lib/libalias/alias_db.c index dcbf117..7b04548 100644 --- a/lib/libalias/alias_db.c +++ b/lib/libalias/alias_db.c @@ -158,7 +158,6 @@ /* Timeouts (in seconds) for different link types */ #define ICMP_EXPIRE_TIME 60 #define UDP_EXPIRE_TIME 60 -#define PPTP_EXPIRE_TIME 60 #define PROTO_EXPIRE_TIME 60 #define FRAGMENT_ID_EXPIRE_TIME 10 #define FRAGMENT_PTR_EXPIRE_TIME 30 @@ -422,7 +421,8 @@ StartPointIn(struct in_addr alias_addr, u_int n; n = alias_addr.s_addr; - n += alias_port; + if (link_type != LINK_PPTP) + n += alias_port; n += link_type; return(n % LINK_TABLE_IN_SIZE); } @@ -436,8 +436,10 @@ StartPointOut(struct in_addr src_addr, struct in_addr dst_addr, n = src_addr.s_addr; n += dst_addr.s_addr; - n += src_port; - n += dst_port; + if (link_type != LINK_PPTP) { + n += src_port; + n += dst_port; + } n += link_type; return(n % LINK_TABLE_OUT_SIZE); @@ -1004,7 +1006,7 @@ AddLink(struct in_addr src_addr, link->expire_time = TCP_EXPIRE_INITIAL; break; case LINK_PPTP: - link->expire_time = PPTP_EXPIRE_TIME; + link->flags |= LINK_PERMANENT; /* no timeout. */ break; case LINK_FRAGMENT_ID: link->expire_time = FRAGMENT_ID_EXPIRE_TIME; @@ -1389,7 +1391,8 @@ FindLinkIn(struct in_addr dst_addr, AddFragmentPtrLink(), FindFragmentPtr() FindProtoIn(), FindProtoOut() FindUdpTcpIn(), FindUdpTcpOut() - FindPptpIn(), FindPptpOut() + AddPptp(), FindPptpOutByCallId(), FindPptpInByCallId(), + FindPptpOutByPeerCallId(), FindPptpInByPeerCallId() FindOriginalAddress(), FindAliasAddress() (prototypes in alias_local.h) @@ -1630,56 +1633,6 @@ FindUdpTcpOut(struct in_addr src_addr, struct alias_link * -FindPptpIn(struct in_addr dst_addr, - struct in_addr alias_addr, - u_short call_id) -{ - struct alias_link *link; - - link = FindLinkIn(dst_addr, alias_addr, - NO_DEST_PORT, call_id, - LINK_PPTP, 1); - - if (link == NULL && !(packetAliasMode & PKT_ALIAS_DENY_INCOMING)) - { - struct in_addr target_addr; - - target_addr = FindOriginalAddress(alias_addr); - link = AddLink(target_addr, dst_addr, alias_addr, - call_id, NO_DEST_PORT, call_id, - LINK_PPTP); - } - - return(link); -} - - -struct alias_link * -FindPptpOut(struct in_addr src_addr, - struct in_addr dst_addr, - u_short call_id) -{ - struct alias_link *link; - - link = FindLinkOut(src_addr, dst_addr, - call_id, NO_DEST_PORT, - LINK_PPTP, 1); - - if (link == NULL) - { - struct in_addr alias_addr; - - alias_addr = FindAliasAddress(src_addr); - link = AddLink(src_addr, dst_addr, alias_addr, - call_id, NO_DEST_PORT, GET_ALIAS_PORT, - LINK_PPTP); - } - - return(link); -} - - -struct alias_link * QueryUdpTcpIn(struct in_addr dst_addr, struct in_addr alias_addr, u_short dst_port, @@ -1740,6 +1693,97 @@ QueryUdpTcpOut(struct in_addr src_addr, return(link); } +struct alias_link * +AddPptp(struct in_addr src_addr, + struct in_addr dst_addr, + struct in_addr alias_addr, + u_int16_t src_call_id) +{ + struct alias_link *link; + + link = AddLink(src_addr, dst_addr, alias_addr, + src_call_id, 0, GET_ALIAS_PORT, + LINK_PPTP); + + return (link); +} + + +struct alias_link * +FindPptpOutByCallId(struct in_addr src_addr, + struct in_addr dst_addr, + u_int16_t src_call_id) +{ + u_int i; + struct alias_link *link; + + i = StartPointOut(src_addr, dst_addr, 0, 0, LINK_PPTP); + LIST_FOREACH(link, &linkTableOut[i], list_out) + if (link->link_type == LINK_PPTP && + link->src_addr.s_addr == src_addr.s_addr && + link->dst_addr.s_addr == dst_addr.s_addr && + link->src_port == src_call_id) + break; + + return (link); +} + + +struct alias_link * +FindPptpOutByPeerCallId(struct in_addr src_addr, + struct in_addr dst_addr, + u_int16_t dst_call_id) +{ + u_int i; + struct alias_link *link; + + i = StartPointOut(src_addr, dst_addr, 0, 0, LINK_PPTP); + LIST_FOREACH(link, &linkTableOut[i], list_out) + if (link->link_type == LINK_PPTP && + link->src_addr.s_addr == src_addr.s_addr && + link->dst_addr.s_addr == dst_addr.s_addr && + link->dst_port == dst_call_id) + break; + + return (link); +} + + +struct alias_link * +FindPptpInByCallId(struct in_addr dst_addr, + struct in_addr alias_addr, + u_int16_t dst_call_id) +{ + u_int i; + struct alias_link *link; + + i = StartPointIn(alias_addr, 0, LINK_PPTP); + LIST_FOREACH(link, &linkTableIn[i], list_in) + if (link->link_type == LINK_PPTP && + link->dst_addr.s_addr == dst_addr.s_addr && + link->alias_addr.s_addr == alias_addr.s_addr && + link->dst_port == dst_call_id) + break; + + return (link); +} + + +struct alias_link * +FindPptpInByPeerCallId(struct in_addr dst_addr, + struct in_addr alias_addr, + u_int16_t alias_call_id) +{ + struct alias_link *link; + + link = FindLinkIn(dst_addr, alias_addr, + 0/* any */, alias_call_id, + LINK_PPTP, 0); + + + return (link); +} + struct alias_link * FindRtspOut(struct in_addr src_addr, @@ -1845,6 +1889,7 @@ FindAliasAddress(struct in_addr original_addr) SetAckModified(), GetAckModified() GetDeltaAckIn(), GetDeltaSeqOut(), AddSeq() SetLastLineCrlfTermed(), GetLastLineCrlfTermed() + SetDestCallId() */ @@ -2227,6 +2272,16 @@ GetLastLineCrlfTermed(struct alias_link *link) return (link->flags & LINK_LAST_LINE_CRLF_TERMED); } +void +SetDestCallId(struct alias_link *link, u_int16_t cid) +{ + + deleteAllLinks = 1; + link = ReLink(link, link->src_addr, link->dst_addr, link->alias_addr, + link->src_port, cid, link->alias_port, link->link_type); + deleteAllLinks = 0; +} + /* Miscellaneous Functions |
