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author | darrenr <darrenr@FreeBSD.org> | 2002-03-19 15:13:27 +0000 |
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committer | darrenr <darrenr@FreeBSD.org> | 2002-03-19 15:13:27 +0000 |
commit | 3f7f80f124c4fa2932c66dc3ca21510364f6460a (patch) | |
tree | fea709663d0dbef140234d8b0ce62be75fa09d82 | |
parent | a0cb50d4e280b5ef66232bac470ae4fa834a39a6 (diff) | |
download | FreeBSD-src-3f7f80f124c4fa2932c66dc3ca21510364f6460a.zip FreeBSD-src-3f7f80f124c4fa2932c66dc3ca21510364f6460a.tar.gz |
remove because of licence reasons
-rw-r--r-- | contrib/ipfilter/ip_h323_pxy.c | 275 |
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; -} |