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@ -671,7 +671,7 @@ |
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+
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+ rtp_exp->flags = 0;
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+
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+ if (expinfo.pbtype == pb_range) {
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+ if (expinfo.pbtype == pb_range || expinfo.pbtype == pb_discon) {
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+ pr_debug("setup expectation for rtcp\n");
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+
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+ be_hiport = htons(expinfo.hiport);
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@ -833,7 +833,7 @@ |
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+ goto out;
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+
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+ /* replace rtcp expect src addr */
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+ if (expinfo.pbtype == pb_range) {
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+ if (expinfo.pbtype == pb_range || expinfo.pbtype == pb_discon) {
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+ t.dst.u.all = htons(expinfo.hiport);
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+
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+ /* get the rtcp expect and replace the srcaddr with RTP server addr */
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@ -1082,7 +1082,7 @@ |
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+#endif /* _IP_CONNTRACK_RTSP_H */
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--- /dev/null
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+++ b/extensions/rtsp/nf_nat_rtsp.c
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@@ -0,0 +1,635 @@
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@@ -0,0 +1,640 @@
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+/*
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+ * RTSP extension for TCP NAT alteration
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+ * (C) 2003 by Tom Marshall <tmarshall at real.com>
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@ -1333,8 +1333,8 @@ |
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+ }
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+ }
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+ for (hiport = prtspexp->hiport; hiport != 0; hiport++) { /* XXX: improper wrap? */
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+ rtp_t->dst.u.udp.port = htons(hiport);
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+ if (rtsp_nf_ct_expect_related(rtp_exp) == 0) {
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+ rtcp_exp->tuple.dst.u.udp.port = htons(hiport);
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+ if (rtsp_nf_ct_expect_related(rtcp_exp) == 0) {
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+ pr_debug("using port %hu (2 of 2)\n", hiport);
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+ break;
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+ }
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@ -1343,6 +1343,11 @@ |
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+ rbuf1len = sprintf(rbuf1, "%hu", loport);
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+ rbufalen = sprintf(rbufa, hiport == loport+1 ?
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+ "%hu-%hu":"%hu/%hu", loport, hiport);
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+ } else {
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+ if (loport != 0)
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+ nf_ct_unexpect_related(rtp_exp);
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+ if (hiport != 0)
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+ nf_ct_unexpect_related(rtcp_exp);
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+ }
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+ break;
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+ }
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Rosen Penev
5 years ago
GitHub