<p>George Joseph has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.asterisk.org/c/asterisk/+/11388">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">res_rtp_asterisk: Add ability to propose local address in ICE<br><br>You can now add the "include_local_address" flag to an entry in<br>rtp.conf "[ice_host_candidates]" to include both the advertized<br>address and the local address in ICE negotiation:<br><br>[ice_host_candidates]<br>192.168.1.1 = 1.2.3.4,include_local_address<br><br>This causes both 192.168.1.1 and 1.2.3.4 to be advertized.<br><br>Change-Id: Ide492cd45ce84546175ca7d557de80d9770513db<br>---<br>M configs/samples/rtp.conf.sample<br>A doc/CHANGES-staging/rtp_ice_include_local_address.txt<br>M res/res_rtp_asterisk.c<br>3 files changed, 33 insertions(+), 3 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/88/11388/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/configs/samples/rtp.conf.sample b/configs/samples/rtp.conf.sample</span><br><span>index 26a70d2..a2664e4 100644</span><br><span>--- a/configs/samples/rtp.conf.sample</span><br><span>+++ b/configs/samples/rtp.conf.sample</span><br><span>@@ -118,13 +118,19 @@</span><br><span> ;</span><br><span> ; The format for these overrides is:</span><br><span> ;</span><br><span style="color: hsl(0, 100%, 40%);">-; <local address> => <advertised address></span><br><span style="color: hsl(120, 100%, 40%);">+; <local address> => <advertised address>,[include_local_address]</span><br><span> ;</span><br><span> ; The following will replace 192.168.1.10 with 1.2.3.4 during ICE</span><br><span> ; negotiation:</span><br><span> ;</span><br><span> ;192.168.1.10 => 1.2.3.4</span><br><span> ;</span><br><span style="color: hsl(120, 100%, 40%);">+; The following will include BOTH 192.168.1.10 and 1.2.3.4 during ICE</span><br><span style="color: hsl(120, 100%, 40%);">+; negotiation instead of replacing 192.168.1.10. This can make it easier</span><br><span style="color: hsl(120, 100%, 40%);">+; to serve both local and remote clients.</span><br><span style="color: hsl(120, 100%, 40%);">+;</span><br><span style="color: hsl(120, 100%, 40%);">+;192.168.1.10 => 1.2.3.4,include_local_address</span><br><span style="color: hsl(120, 100%, 40%);">+;</span><br><span> ; You can define an override for more than 1 interface if you have a multihomed</span><br><span> ; server. Any local interface that is not matched will be passed through</span><br><span> ; unaltered. Both IPv4 and IPv6 addresses are supported.</span><br><span>diff --git a/doc/CHANGES-staging/rtp_ice_include_local_address.txt b/doc/CHANGES-staging/rtp_ice_include_local_address.txt</span><br><span>new file mode 100644</span><br><span>index 0000000..e5a65e5</span><br><span>--- /dev/null</span><br><span>+++ b/doc/CHANGES-staging/rtp_ice_include_local_address.txt</span><br><span>@@ -0,0 +1,5 @@</span><br><span style="color: hsl(120, 100%, 40%);">+Subject: RTP/ICE</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+You can now indicate that you'd like an ice_host_candidate's local address</span><br><span style="color: hsl(120, 100%, 40%);">+to be published as well as the mapped address. See the sample rtp.conf</span><br><span style="color: hsl(120, 100%, 40%);">+for more information.</span><br><span>diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c</span><br><span>index e384c23..efffeec 100644</span><br><span>--- a/res/res_rtp_asterisk.c</span><br><span>+++ b/res/res_rtp_asterisk.c</span><br><span>@@ -244,6 +244,7 @@</span><br><span> struct ast_ice_host_candidate {</span><br><span> pj_sockaddr local;</span><br><span> pj_sockaddr advertised;</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int include_local;</span><br><span> AST_RWLIST_ENTRY(ast_ice_host_candidate) next;</span><br><span> };</span><br><span> </span><br><span>@@ -543,21 +544,26 @@</span><br><span> }</span><br><span> </span><br><span> /*! \brief Applies the ICE host candidate mapping */</span><br><span style="color: hsl(0, 100%, 40%);">-static void host_candidate_overrides_apply(unsigned int count, pj_sockaddr addrs[])</span><br><span style="color: hsl(120, 100%, 40%);">+static unsigned int host_candidate_overrides_apply(unsigned int count, unsigned int max_count, pj_sockaddr addrs[])</span><br><span> {</span><br><span> int pos;</span><br><span> struct ast_ice_host_candidate *candidate;</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int added = 0;</span><br><span> </span><br><span> AST_RWLIST_RDLOCK(&host_candidates);</span><br><span> for (pos = 0; pos < count; pos++) {</span><br><span> AST_LIST_TRAVERSE(&host_candidates, candidate, next) {</span><br><span> if (!pj_sockaddr_cmp(&candidate->local, &addrs[pos])) {</span><br><span> pj_sockaddr_copy_addr(&addrs[pos], &candidate->advertised);</span><br><span style="color: hsl(120, 100%, 40%);">+ if (candidate->include_local && (count + (++added)) <= max_count) {</span><br><span style="color: hsl(120, 100%, 40%);">+ pj_sockaddr_cp(&addrs[count + (added - 1)], &candidate->local);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span> break;</span><br><span> }</span><br><span> }</span><br><span> }</span><br><span> AST_RWLIST_UNLOCK(&host_candidates);</span><br><span style="color: hsl(120, 100%, 40%);">+ return added;</span><br><span> }</span><br><span> </span><br><span> /*! \brief Helper function which updates an ast_sockaddr with the candidate used for the component */</span><br><span>@@ -2954,6 +2960,7 @@</span><br><span> {</span><br><span> pj_sockaddr address[PJ_ICE_MAX_CAND];</span><br><span> unsigned int count = PJ_ARRAY_SIZE(address), pos = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int max_count = PJ_ARRAY_SIZE(address);</span><br><span> int basepos = -1;</span><br><span> </span><br><span> /* Add all the local interface IP addresses */</span><br><span>@@ -2965,7 +2972,7 @@</span><br><span> pj_enum_ip_interface(pj_AF_INET6(), &count, address);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- host_candidate_overrides_apply(count, address);</span><br><span style="color: hsl(120, 100%, 40%);">+ count += host_candidate_overrides_apply(count, max_count, address);</span><br><span> </span><br><span> for (pos = 0; pos < count; pos++) {</span><br><span> if (!rtp_address_is_ice_blacklisted(&address[pos])) {</span><br><span>@@ -6744,6 +6751,8 @@</span><br><span> for (var = ast_variable_browse(cfg, "ice_host_candidates"); var; var = var->next) {</span><br><span> struct ast_sockaddr local_addr, advertised_addr;</span><br><span> pj_str_t address;</span><br><span style="color: hsl(120, 100%, 40%);">+ unsigned int include_local_address = 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ char *sep;</span><br><span> </span><br><span> ast_sockaddr_setnull(&local_addr);</span><br><span> ast_sockaddr_setnull(&advertised_addr);</span><br><span>@@ -6753,6 +6762,14 @@</span><br><span> continue;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ sep = strchr(var->value,',');</span><br><span style="color: hsl(120, 100%, 40%);">+ if (sep) {</span><br><span style="color: hsl(120, 100%, 40%);">+ *sep = '\0';</span><br><span style="color: hsl(120, 100%, 40%);">+ sep++;</span><br><span style="color: hsl(120, 100%, 40%);">+ sep = ast_skip_blanks(sep);</span><br><span style="color: hsl(120, 100%, 40%);">+ include_local_address = strcmp(sep, "include_local_address") == 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> if (ast_parse_arg(var->value, PARSE_ADDR | PARSE_PORT_IGNORE, &advertised_addr)) {</span><br><span> ast_log(LOG_WARNING, "Invalid advertised ICE host address: %s\n", var->value);</span><br><span> continue;</span><br><span>@@ -6763,6 +6780,8 @@</span><br><span> break;</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ candidate->include_local = include_local_address;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> pj_sockaddr_parse(pj_AF_UNSPEC(), 0, pj_cstr(&address, ast_sockaddr_stringify(&local_addr)), &candidate->local);</span><br><span> pj_sockaddr_parse(pj_AF_UNSPEC(), 0, pj_cstr(&address, ast_sockaddr_stringify(&advertised_addr)), &candidate->advertised);</span><br><span> </span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.asterisk.org/c/asterisk/+/11388">change 11388</a>. 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<div style="display:none"> Gerrit-Project: asterisk </div>
<div style="display:none"> Gerrit-Branch: 13 </div>
<div style="display:none"> Gerrit-Change-Id: Ide492cd45ce84546175ca7d557de80d9770513db </div>
<div style="display:none"> Gerrit-Change-Number: 11388 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: George Joseph <gjoseph@digium.com> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>