summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--contrib/ipfilter/ip_h323_pxy.c275
1 files changed, 0 insertions, 275 deletions
diff --git a/contrib/ipfilter/ip_h323_pxy.c b/contrib/ipfilter/ip_h323_pxy.c
deleted file mode 100644
index 14aa47b..0000000
--- a/contrib/ipfilter/ip_h323_pxy.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/*
- * Copyright 2001, QNX Software Systems Ltd. All Rights Reserved
- *
- * This source code has been published by QNX Software Systems Ltd. (QSSL).
- * However, any use, reproduction, modification, distribution or transfer of
- * this software, or any software which includes or is based upon any of this
- * code, is only permitted under the terms of the QNX Open Community License
- * version 1.0 (see licensing.qnx.com for details) or as otherwise expressly
- * authorized by a written license agreement from QSSL. For more information,
- * please email licensing@qnx.com.
- *
- */
-
-/*
- * Simple H.323 proxy
- *
- * by xtang@canada.com
- * ported to ipfilter 3.4.20 by Michael Grant mg-ipf@grant.org
- */
-
-#if __FreeBSD_version >= 220000 && defined(_KERNEL)
-# include <sys/fcntl.h>
-# include <sys/filio.h>
-#else
-# include <sys/ioctl.h>
-#endif
-
-#define IPF_H323_PROXY
-
-int ippr_h323_init __P((void));
-int ippr_h323_new __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-void ippr_h323_del __P((ap_session_t *));
-int ippr_h323_out __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-int ippr_h323_in __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-
-int ippr_h245_init __P((void));
-int ippr_h245_new __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-int ippr_h245_out __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-int ippr_h245_in __P((fr_info_t *, ip_t *, ap_session_t *, nat_t *));
-
-static frentry_t h323_fr;
-#if (SOLARIS || defined(__sgi)) && defined(_KERNEL)
-extern KRWLOCK_T ipf_nat;
-#endif
-
-static int find_port __P((int, u_char *, int datlen, int *, u_short *));
-
-
-static int find_port(ipaddr, data, datlen, off, port)
-int ipaddr;
-unsigned char *data;
-int datlen, *off;
-unsigned short *port;
-{
- if (datlen < 6)
- return -1;
-
- *port = 0;
- for (*off = 0; *off <= datlen - 6; *off = *off + 1) {
- if (ipaddr == *(int *)(data + *off))
- {
- *port = (*(data + *off + 4) << 8) + *(data + *off +5);
- break;
- }
- }
- return (*off > datlen - 6) ? -1 : 0;
-}
-
-/*
- * Initialize local structures.
- */
-int ippr_h323_init()
-{
- bzero((char *)&h323_fr, sizeof(h323_fr));
- h323_fr.fr_ref = 1;
- h323_fr.fr_flags = FR_INQUE|FR_PASS|FR_QUICK|FR_KEEPSTATE;
-
- return 0;
-}
-
-
-int ippr_h323_new(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- aps->aps_data = NULL;
- aps->aps_psiz = 0;
-
- return 0;
-}
-
-
-void ippr_h323_del(aps)
-ap_session_t *aps;
-{
- int i;
- ipnat_t *ipn;
-
- if (aps->aps_data) {
- for (i = 0, ipn = aps->aps_data;
- i < (aps->aps_psiz / sizeof(ipnat_t));
- i++, ipn = (ipnat_t *)((char *)ipn + sizeof(*ipn)))
- {
- /*
- * Check the comment in ippr_h323_in() function,
- * just above nat_ioctl() call.
- * We are lucky here because this function is not
- * called with ipf_nat locked.
- */
- if (nat_ioctl((caddr_t)ipn, SIOCRMNAT, FWRITE) == -1) {
- /* log the error */
- }
- }
- KFREES(aps->aps_data, aps->aps_psiz);
- }
- return;
-}
-
-
-int ippr_h323_out(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- return 0;
-}
-
-
-int ippr_h323_in(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- int ipaddr, off, datlen;
- unsigned short port;
- unsigned char *data;
- tcphdr_t *tcp;
-
- tcp = (tcphdr_t *)fin->fin_dp;
- ipaddr = ip->ip_src.s_addr;
-
- data = (unsigned char *)tcp + (tcp->th_off << 2);
- datlen = ip->ip_len - (ip->ip_hl << 2) - (tcp->th_off << 2);
- if (find_port(ipaddr, data, datlen, &off, &port) == 0) {
- ipnat_t *ipn;
- char *newarray;
-
- /* setup a nat rule to set a h245 proxy on tcp-port "port"
- * it's like:
- * map <if> <inter_ip>/<mask> -> <gate_ip>/<mask> proxy port <port> <port>/tcp
- */
- KMALLOCS(newarray, char *, aps->aps_psiz + sizeof(*ipn));
- if (newarray == NULL) {
- return -1;
- }
- ipn = (ipnat_t *)&newarray[aps->aps_psiz];
- bcopy(nat->nat_ptr, ipn, sizeof(ipnat_t));
- strncpy(ipn->in_plabel, "h245", APR_LABELLEN);
-
- ipn->in_inip = nat->nat_inip.s_addr;
- ipn->in_inmsk = 0xffffffff;
- ipn->in_dport = htons(port);
- /*
- * we got a problem here. we need to call nat_ioctl() to add
- * the h245 proxy rule, but since we already hold (READ locked)
- * the nat table rwlock (ipf_nat), if we go into nat_ioctl(),
- * it will try to WRITE lock it. This will causing dead lock
- * on RTP.
- *
- * The quick & dirty solution here is release the read lock,
- * call nat_ioctl() and re-lock it.
- * A (maybe better) solution is do a UPGRADE(), and instead
- * of calling nat_ioctl(), we add the nat rule ourself.
- */
- RWLOCK_EXIT(&ipf_nat);
- if (nat_ioctl((caddr_t)ipn, SIOCADNAT, FWRITE) == -1) {
- READ_ENTER(&ipf_nat);
- return -1;
- }
- READ_ENTER(&ipf_nat);
- bcopy(aps->aps_data, newarray, aps->aps_psiz);
- KFREES(aps->aps_data, aps->aps_psiz);
- aps->aps_data = newarray;
- aps->aps_psiz += sizeof(*ipn);
- }
- return 0;
-}
-
-
-int ippr_h245_init()
-{
- return 0;
-}
-
-
-int ippr_h245_new(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- aps->aps_data = NULL;
- aps->aps_psiz = 0;
- return 0;
-}
-
-
-int ippr_h245_out(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- int ipaddr, off, datlen;
- u_short port;
- unsigned char *data;
- tcphdr_t *tcp;
-
- tcp = (tcphdr_t *)fin->fin_dp;
- ipaddr = nat->nat_inip.s_addr;
- data = (unsigned char *)tcp + (tcp->th_off << 2);
- datlen = ip->ip_len - fin->fin_hlen - (tcp->th_off << 2);
- if (find_port(ipaddr, data, datlen, &off, &port) == 0) {
- fr_info_t fi;
- nat_t *ipn;
-
-/* port = htons(port); */
- ipn = nat_outlookup(fin->fin_ifp, IPN_UDP, IPPROTO_UDP,
- ip->ip_src, ip->ip_dst, 1);
- if (ipn == NULL) {
- struct ip newip;
- struct udphdr udp;
-
- bcopy(ip, &newip, sizeof(newip));
- newip.ip_len = fin->fin_hlen + sizeof(udp);
- newip.ip_p = IPPROTO_UDP;
- newip.ip_src = nat->nat_inip;
-
- bzero(&udp, sizeof(udp));
- udp.uh_sport = port;
-
- bcopy(fin, &fi, sizeof(fi));
- fi.fin_fi.fi_p = IPPROTO_UDP;
- fi.fin_data[0] = port;
- fi.fin_data[1] = 0;
- fi.fin_dp = (char *)&udp;
-
- ipn = nat_new(&fi, &newip, nat->nat_ptr, NULL,
- IPN_UDP|FI_W_DPORT, NAT_OUTBOUND);
- if (ipn != NULL) {
- ipn->nat_ptr->in_hits++;
-#ifdef IPFILTER_LOG
- nat_log(ipn, (u_int)(nat->nat_ptr->in_redir));
-#endif
- *(int *)(data + off) = ip->ip_src.s_addr;
- *(short *)(data + off + 4) = ipn->nat_outport;
- }
- }
- }
- return 0;
-}
-
-
-int ippr_h245_in(fin, ip, aps, nat)
-fr_info_t *fin;
-ip_t *ip;
-ap_session_t *aps;
-nat_t *nat;
-{
- return 0;
-}
OpenPOWER on IntegriCloud