[sr-dev] git:4.0: core: resolve down to A/AAAA records when no naptr records

Module: sip-router Branch: 4.0 Commit: 3253fcb7e7ef628727799a92ca68739dba3d10ca URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=3253fcb… Author: Øyvind Kolbu &lt;oyvind.kolbu(a)usit.uio.no&gt; Committer: Daniel-Constantin Mierla &lt;miconda(a)gmail.com&gt; Date: Mon Sep 30 11:15:13 2013 +0200 core: resolve down to A/AAAA records when no naptr records - try all protocols, not only UDP (cherry picked from commit b50888cf447ea3a3315e665c97f71a07bb687337) --- dns_cache.c | 10 +++++++++- resolve.c | 27 +++++++++++---------------- 2 files changed, 20 insertions(+), 17 deletions(-) diff --git a/dns_cache.c b/dns_cache.c index 1243c92..5690cb6 100644 --- a/dns_cache.c +++ b/dns_cache.c @@ -2857,8 +2857,10 @@ struct hostent* dns_naptr_sip_resolvehost(str* name, unsigned short* port, naptr_bmp_t tried_bmp; struct dns_hash_entry* e; char n_proto; + char origproto; str srv_name; + origproto=*proto; he=0; if (dns_hash==0){ /* not init => use normal, non-cached version */ LOG(L_WARN, "WARNING: dns_sip_resolvehost: called before dns cache" @@ -2903,7 +2905,13 @@ struct hostent* dns_naptr_sip_resolvehost(str* name, unsigned short* port, dns_hash_put(e); } naptr_not_found: - return no_naptr_srv_sip_resolvehost(name,port,proto); + *proto = origproto; + he = no_naptr_srv_sip_resolvehost(name,port,proto); + /* fallback all the way down to A/AAAA */ + if (he==0) { + he=dns_get_he(name,dns_flags); + } + return he; } #endif /* USE_NAPTR */ diff --git a/resolve.c b/resolve.c index e739f4b..e29e189 100644 --- a/resolve.c +++ b/resolve.c @@ -1519,20 +1519,7 @@ struct hostent* no_naptr_srv_sip_resolvehost(str* name, unsigned short* port, ch } if (default_order){ for (i=0; i<list_len;i++) { - switch ( srv_proto_list[i].proto) { - case PROTO_UDP: - srv_proto_list[i].proto_pref=4; - break; - case PROTO_TCP: - srv_proto_list[i].proto_pref=3; - break; - case PROTO_TLS: - srv_proto_list[i].proto_pref=2; - break; - case PROTO_SCTP: - srv_proto_list[i].proto_pref=1; - break; - } + srv_proto_list[i].proto_pref=proto_pref_score(i);; } } @@ -1592,6 +1579,9 @@ struct hostent* no_naptr_srv_sip_resolvehost(str* name, unsigned short* port, ch if ((port)&&(*port==0)){ *port=(srv_proto_list[i].proto==PROTO_TLS)?SIPS_PORT:SIP_PORT; /* just in case we don't find another */ } + if ((proto)&&(*proto==0)){ + *proto = PROTO_UDP; + } srv_name.s=tmp_srv; srv_name.len=len; #ifdef USE_DNS_CACHE @@ -1632,9 +1622,9 @@ struct hostent* naptr_sip_resolvehost(str* name, unsigned short* port, char n_proto; str srv_name; naptr_bmp_t tried_bmp; /* tried bitmap */ + char origproto; - - + origproto = *proto; naptr_head=0; he=0; if (name->len >= MAX_DNS_NAME) { @@ -1673,7 +1663,12 @@ struct hostent* naptr_sip_resolvehost(str* name, unsigned short* port, #endif } /* fallback to srv lookup */ + *proto = origproto; he=no_naptr_srv_sip_resolvehost(name,port,proto); + /* fallback all the way down to A/AAAA */ + if (he==0) { + he=dns_get_he(name,dns_flags); + } end: if (naptr_head) free_rdata_list(naptr_head);