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Merge pull request #12338 from alinnastac/rtsp-pb_discon

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xtables-addons: fix RTSP helper support for client_port=x/y Transport…
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Rosen Penev 2020-07-04 11:39:17 -07:00 committed by GitHub
commit 390c06a738
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1 changed files with 10 additions and 5 deletions
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15
net/xtables-addons/patches/100-add-rtsp-conntrack.patch
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@ -671,7 +671,7 @@
+
+ rtp_exp->flags = 0;
+
+ if (expinfo.pbtype == pb_range) {
+ if (expinfo.pbtype == pb_range || expinfo.pbtype == pb_discon) {
+ pr_debug("setup expectation for rtcp\n");
+
+ be_hiport = htons(expinfo.hiport);
@ -833,7 +833,7 @@
+ goto out;
+
+ /* replace rtcp expect src addr */
+ if (expinfo.pbtype == pb_range) {
+ if (expinfo.pbtype == pb_range || expinfo.pbtype == pb_discon) {
+ t.dst.u.all = htons(expinfo.hiport);
+
+ /* get the rtcp expect and replace the srcaddr with RTP server addr */
@ -1082,7 +1082,7 @@
+#endif /* _IP_CONNTRACK_RTSP_H */
--- /dev/null
+++ b/extensions/rtsp/nf_nat_rtsp.c
@@ -0,0 +1,635 @@
@@ -0,0 +1,640 @@
+/*
+ * RTSP extension for TCP NAT alteration
+ * (C) 2003 by Tom Marshall <tmarshall at real.com>
@ -1333,8 +1333,8 @@
+ }
+ }
+ for (hiport = prtspexp->hiport; hiport != 0; hiport++) { /* XXX: improper wrap? */
+ rtp_t->dst.u.udp.port = htons(hiport);
+ if (rtsp_nf_ct_expect_related(rtp_exp) == 0) {
+ rtcp_exp->tuple.dst.u.udp.port = htons(hiport);
+ if (rtsp_nf_ct_expect_related(rtcp_exp) == 0) {
+ pr_debug("using port %hu (2 of 2)\n", hiport);
+ break;
+ }
@ -1343,6 +1343,11 @@
+ rbuf1len = sprintf(rbuf1, "%hu", loport);
+ rbufalen = sprintf(rbufa, hiport == loport+1 ?
+ "%hu-%hu":"%hu/%hu", loport, hiport);
+ } else {
+ if (loport != 0)
+ nf_ct_unexpect_related(rtp_exp);
+ if (hiport != 0)
+ nf_ct_unexpect_related(rtcp_exp);
+ }
+ break;
+ }