* _intstr (mf,csp,cs)
* _manyistr (mf,cs)
* _txt (pa)
- * _inaddr (pa,di,cs +search_sortlist, dip_genaddr)
- * _addr (pa,di,div,csp,cs,gsz
- * +search_sortlist_sa, dip_sockaddr)
+ * _inaddr (pa,di,cs
+ * +search_sortlist, dip_genaddr, csp_genaddr)
+ * _in6addr (pa,di,cs)
+ * _addr (pa,di,div,csp,cs,gsz,qs
+ * +search_sortlst_sa, dip_sockaddr,
+ * addr_rrtypes, icb_addr)
* _domain (pap,csp,cs)
* _dom_raw (pa)
* _host_raw (pa)
* cs_*
* gsz_*
* postsort_*
+ * qs_*
*/
/*
}
/*
- * _inaddr (pa,di,cs +search_sortlist, dip_genaddr)
+ * _inaddr (pa,di,cs +search_sortlist, dip_genaddr, csp_genaddr)
*/
static adns_status pa_inaddr(const parseinfo *pai, int cbyte,
static int search_sortlist(adns_state ads, int af, const void *ad) {
const struct sortlist *slp;
- const struct in_addr *a4;
+ const struct in6_addr *a6;
+ union gen_addr a;
int i;
-
- assert(af==AF_INET);
- a4= ad;
+ int v6mappedp= 0;
+
+ if (af == AF_INET6) {
+ a6= ad;
+ if (IN6_IS_ADDR_V4MAPPED(a6)) {
+ a.v4.s_addr= htonl(((unsigned long)a6->s6_addr[12] << 24) |
+ ((unsigned long)a6->s6_addr[13] << 16) |
+ ((unsigned long)a6->s6_addr[14] << 8) |
+ ((unsigned long)a6->s6_addr[15] << 0));
+ v6mappedp= 1;
+ }
+ }
+
for (i=0, slp=ads->sortlist;
i<ads->nsortlist &&
- (assert(slp->af==AF_INET),
- !((a4->s_addr & slp->mask.v4.s_addr) == slp->base.v4.s_addr));
+ !adns__addr_match_p(af,ad, slp->af,&slp->base,&slp->mask) &&
+ !(v6mappedp &&
+ adns__addr_match_p(AF_INET,&a, slp->af,&slp->base,&slp->mask));
i++, slp++);
return i;
}
return dip_genaddr(ads,AF_INET,datap_a,datap_b);
}
+static adns_status csp_genaddr(vbuf *vb, int af, const void *p) {
+ char buf[ADNS_ADDR2TEXT_BUFLEN];
+ int len= sizeof(buf);
+ adns_rr_addr a;
+ int err;
+
+ memset(&a, 0, sizeof(a));
+ a.addr.sa.sa_family= af;
+ adns__sockaddr_inject(p, 0, &a.addr.sa);
+ err= adns_addr2text(&a.addr.sa,0, buf,&len, 0); assert(!err);
+ CSP_ADDSTR(buf);
+ return adns_s_ok;
+}
+
static adns_status cs_inaddr(vbuf *vb, const void *datap) {
- const struct in_addr *rrp= datap, rr= *rrp;
- const char *ia;
+ return csp_genaddr(vb, AF_INET,datap);
+}
- ia= inet_ntoa(rr); assert(ia);
- CSP_ADDSTR(ia);
+/*
+ * _in6addr (pa,di,cs)
+ */
+
+static adns_status pa_in6addr(const parseinfo *pai, int cbyte,
+ int max, void *datap) {
+ struct in6_addr *storeto= datap;
+
+ if (max-cbyte != 16) return adns_s_invaliddata;
+ memcpy(storeto->s6_addr, pai->dgram + cbyte, 16);
return adns_s_ok;
}
+static int di_in6addr(adns_state ads,
+ const void *datap_a, const void *datap_b) {
+ return dip_genaddr(ads,AF_INET6,datap_a,datap_b);
+}
+
+static adns_status cs_in6addr(vbuf *vb, const void *datap) {
+ return csp_genaddr(vb,AF_INET6,datap);
+}
+
/*
- * _addr (pa,di,div,csp,cs,gsz +search_sortlist_sa, dip_sockaddr)
+ * _addr (pa,di,div,csp,cs,gsz,qs
+ * +search_sortlist_sa, dip_sockaddr, addr_rrtypes, icb_addr)
*/
+static const typeinfo tinfo_addrsub;
+
+#define ADDR_RRTYPES(_) _(a)
+
+static const adns_rrtype addr_all_rrtypes[] = {
+#define RRTY_CODE(ty) adns_r_##ty,
+ ADDR_RRTYPES(RRTY_CODE)
+#undef RRTY_CODE
+};
+
+enum {
+#define RRTY_INDEX(ty) addr__ri_##ty,
+ ADDR_RRTYPES(RRTY_INDEX)
+#undef RRTY_INDEX
+ addr_nrrtypes,
+#define RRTY_FLAG(ty) addr_rf_##ty = 1 << addr__ri_##ty,
+ ADDR_RRTYPES(RRTY_FLAG)
+ addr__rrty_hunoz
+#undef RRTY_FLAG
+};
+
+static unsigned addr_rrtypeflag(adns_rrtype type) {
+ int i;
+
+ type &= adns_rrt_typemask;
+ for (i=0; i<addr_nrrtypes && type!=addr_all_rrtypes[i]; i++);
+ return i < addr_nrrtypes ? 1 << i : 0;
+}
+
static adns_status pa_addr(const parseinfo *pai, int cbyte,
int max, void *datap) {
adns_rr_addr *storeto= datap;
}
static int search_sortlist_sa(adns_state ads, const struct sockaddr *sa) {
- assert(sa->sa_family == AF_INET);
- return search_sortlist(ads, sa->sa_family,
- &((const struct sockaddr_in *)sa)->sin_addr);
+ union gen_addr a;
+ adns__sockaddr_extract(sa, &a, 0);
+ return search_sortlist(ads, sa->sa_family, &a);
}
+
static int dip_sockaddr(adns_state ads,
const struct sockaddr *sa,
const struct sockaddr *sb) {
}
static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) {
- const char *ia;
- char buf[30];
+ char buf[ADNS_ADDR2TEXT_BUFLEN];
+ int len= sizeof(buf);
+ int err;
switch (rrp->addr.inet.sin_family) {
case AF_INET:
CSP_ADDSTR("INET ");
- ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia);
- CSP_ADDSTR(ia);
+ goto a2t;
+ case AF_INET6:
+ CSP_ADDSTR("INET6 ");
+ goto a2t;
+ a2t:
+ err= adns_addr2text(&rrp->addr.sa,0, buf,&len, 0); assert(!err);
+ CSP_ADDSTR(buf);
break;
default:
sprintf(buf,"AF=%u",rrp->addr.sa.sa_family);
sizeof(adns_rr_addr) : sizeof(adns_rr_addr_v4only);
}
+static unsigned addr_rrtypes(adns_state ads, adns_rrtype type,
+ adns_queryflags qf) {
+ /* Return a mask of addr_rf_... flags indicating which address families are
+ * wanted, given a query type and flags.
+ */
+ return addr_rf_a;
+}
+
+static void icb_addr(adns_query parent, adns_query child);
+
+static void addr_subqueries(adns_query qu, struct timeval now,
+ adns_queryflags qf_extra,
+ const byte *qd_dgram, int qd_dglen) {
+ int i, err, id;
+ adns_query cqu;
+ adns_queryflags qf= (qu->flags & ~adns_qf_search) | qf_extra;
+ adns_rrtype qtf= qu->answer->type & adns__qtf_deref;
+ unsigned which= qu->ctx.tinfo.addr.want & ~qu->ctx.tinfo.addr.have;
+ qcontext ctx;
+
+ memset(&ctx, 0, sizeof(ctx));
+ ctx.callback= icb_addr;
+ for (i=0; i<addr_nrrtypes; i++) {
+ if (!(which & (1 << i))) continue;
+ err= adns__mkquery_frdgram(qu->ads, &qu->vb, &id, qd_dgram,qd_dglen,
+ DNS_HDRSIZE, addr_all_rrtypes[i], qf);
+ if (err) goto x_error;
+ err= adns__internal_submit(qu->ads, &cqu, qu, &tinfo_addrsub,
+ addr_all_rrtypes[i] | qtf,
+ &qu->vb, id, qf, now, &ctx);
+ if (err) goto x_error;
+ cqu->answer->rrsz= qu->answer->rrsz;
+ }
+ qu->state= query_childw;
+ LIST_LINK_TAIL(qu->ads->childw, qu);
+ return;
+
+x_error:
+ adns__query_fail(qu, err);
+}
+
+static adns_status append_addrs(adns_query qu, size_t rrsz,
+ adns_rr_addr **dp, int *dlen,
+ const adns_rr_addr *sp, int slen) {
+ /* Append a vector of slen addr records, each of size rrsz, starting at ap,
+ * to a vector starting at *dp, of length *dlen. On successful completion,
+ * *dp and *dlen are updated.
+ */
+
+ size_t drrsz= *dlen*rrsz, srrsz= slen*rrsz;
+ byte *p;
+
+ if (!slen) return adns_s_ok;
+ p= adns__alloc_interim(qu, drrsz + srrsz);
+ if (!p) R_NOMEM;
+ if (*dlen) {
+ memcpy(p, *dp, drrsz);
+ adns__free_interim(qu, *dp);
+ }
+ memcpy(p + drrsz, sp, srrsz);
+ *dlen += slen;
+ *dp= (adns_rr_addr *)p;
+ return adns_s_ok;
+}
+
+static void propagate_ttl(adns_query to, adns_query from)
+ { if (to->expires > from->expires) to->expires= from->expires; }
+
+static adns_status copy_cname_from_child(adns_query parent, adns_query child) {
+ adns_answer *pans= parent->answer, *cans= child->answer;
+ size_t n= strlen(cans->cname) + 1;
+
+ pans->cname= adns__alloc_preserved(parent, n);
+ if (!pans->cname) R_NOMEM;
+ memcpy(pans->cname, cans->cname, n);
+ return adns_s_ok;
+}
+
+static void done_addr_type(adns_query qu, adns_rrtype type) {
+ unsigned f= addr_rrtypeflag(type);
+ assert(f); qu->ctx.tinfo.addr.have |= f;
+}
+
+static void icb_addr(adns_query parent, adns_query child) {
+ adns_state ads= parent->ads;
+ adns_answer *pans= parent->answer, *cans= child->answer;
+ struct timeval now;
+ adns_status err;
+
+ propagate_ttl(parent, child);
+
+ if (cans->cname && !pans->cname) {
+ err= copy_cname_from_child(parent, child);
+ if (err) goto x_err;
+ }
+
+ if ((parent->flags & adns_qf_search) &&
+ !pans->cname && cans->status == adns_s_nxdomain) {
+ /* We're searching a list of suffixes, and the name doesn't exist. Try
+ * the next one.
+ */
+
+ adns__cancel_children(parent);
+ adns__free_interim(parent, pans->rrs.bytes);
+ pans->rrs.bytes= 0; pans->nrrs= 0;
+ if (gettimeofday(&now, 0)) goto x_gtod;
+ adns__search_next(ads, parent, now);
+ return;
+ }
+
+ if (cans->status && cans->status != adns_s_nodata)
+ { err= cans->status; goto x_err; }
+
+ assert(pans->rrsz == cans->rrsz);
+ err= append_addrs(parent, pans->rrsz,
+ &pans->rrs.addr, &pans->nrrs,
+ cans->rrs.addr, cans->nrrs);
+ if (err) goto x_err;
+ done_addr_type(parent, cans->type);
+
+ if (parent->children.head) LIST_LINK_TAIL(ads->childw, parent);
+ else if (!pans->nrrs) adns__query_fail(parent, adns_s_nodata);
+ else adns__query_done(parent);
+ return;
+
+x_gtod:
+ adns__diag(ads, -1, parent, "gettimeofday failed: %s", strerror(errno));
+ err= adns_s_systemfail;
+ goto x_err;
+
+x_err:
+ adns__query_fail(parent, err);
+}
+
+static void qs_addr(adns_query qu, struct timeval now) {
+ if (!qu->ctx.tinfo.addr.want) {
+ qu->ctx.tinfo.addr.want= addr_rrtypes(qu->ads, qu->answer->type,
+ qu->flags);
+ qu->ctx.tinfo.addr.have= 0;
+ }
+ addr_subqueries(qu, now, 0, qu->query_dgram, qu->query_dglen);
+}
+
/*
* _domain (pap,csp,cs)
* _dom_raw (pa)
adns_rr_hostaddr *rrp= child->ctx.pinfo.hostaddr;
adns_state ads= parent->ads;
adns_status st;
- size_t addrsz= gsz_addr(0, parent->answer->type);
st= cans->status;
rrp->astatus= st;
rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs;
rrp->addrs= cans->rrs.addr;
- adns__transfer_interim(child, parent, rrp->addrs, rrp->naddrs*addrsz);
+ adns__transfer_interim(child, parent, rrp->addrs);
if (parent->children.head) {
LIST_LINK_TAIL(ads->childw,parent);
nflags= adns_qf_quoteok_query;
if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid;
- st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
+ st= adns__internal_submit(pai->ads, &nqu, pai->qu,
+ adns__findtype(adns_r_addr),
((adns_r_addr & adns_rrt_reprmask) |
(pai->qu->answer->type & ~adns_rrt_reprmask)),
&pai->qu->vb, id, nflags, pai->now, &ctx);
if (st) return st;
- nqu->parent= pai->qu;
- LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
-
return adns_s_ok;
}
static adns_status ckl_ptr(adns_state ads, adns_queryflags flags,
union checklabel_state *cls, qcontext *ctx,
int labnum, const char *label, int lablen) {
- static const char *const (expectdomain[])= { DNS_INADDR_ARPA };
- char *ep;
- const char *ed;
- char labbuf[4];
- int l;
-
- if (labnum < 4) {
- if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
- memcpy(labbuf, label, lablen);
- labbuf[lablen]= 0;
- cls->ptr.ipv[3-labnum]= strtoul(labbuf,&ep,10);
- if (*ep) return adns_s_querydomainwrong;
- if (lablen>1 && *label=='0') return adns_s_querydomainwrong;
- } else if (labnum < 4 + sizeof(expectdomain)/sizeof(*expectdomain)) {
- ed= expectdomain[labnum-4];
- l= strlen(ed);
- if (lablen != l || memcmp(label, ed, l)) return adns_s_querydomainwrong;
+ if (lablen) {
+ if (adns__revparse_label(&cls->ptr, labnum, label,lablen))
+ return adns_s_querydomainwrong;
} else {
- if (lablen) return adns_s_querydomainwrong;
- ctx->tinfo.ptr.addr.af= AF_INET;
- ctx->tinfo.ptr.addr.addr.v4.s_addr=
- htonl((cls->ptr.ipv[0]<<24) | (cls->ptr.ipv[1]<<16) |
- (cls->ptr.ipv[2]<< 8) | (cls->ptr.ipv[3]));
+ if (adns__revparse_done(&cls->ptr, labnum,
+ &ctx->tinfo.ptr.rev_rrtype,
+ &ctx->tinfo.ptr.addr))
+ return adns_s_querydomainwrong;
}
return adns_s_ok;
}
}
queried= &parent->ctx.tinfo.ptr.addr;
- assert(queried->af == AF_INET);
- assert(cans->type == adns_r_a);
for (i=0, found=cans->rrs.bytes; i<cans->nrrs; i++, found+=cans->rrsz) {
- if (queried->addr.v4.s_addr == ((const struct in_addr *)found)->s_addr) {
+ if (adns__genaddr_equal_p(queried->af,&queried->addr,
+ parent->ctx.tinfo.ptr.addr.af,found)) {
if (!parent->children.head) {
adns__query_done(parent);
return;
int max, void *datap) {
char **rrp= datap;
adns_status st;
+ adns_rrtype rrtype= pai->qu->ctx.tinfo.ptr.rev_rrtype;
int cbyte, id;
adns_query nqu;
qcontext ctx;
st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
pai->dgram, pai->dglen, dmstart,
- adns_r_a, adns_qf_quoteok_query);
+ rrtype, adns_qf_quoteok_query);
if (st) return st;
ctx.ext= 0;
ctx.callback= icb_ptr;
memset(&ctx.pinfo,0,sizeof(ctx.pinfo));
memset(&ctx.tinfo,0,sizeof(ctx.tinfo));
- st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_a),
- adns_r_a, &pai->qu->vb, id, adns_qf_quoteok_query,
- pai->now, &ctx);
+ st= adns__internal_submit(pai->ads, &nqu, pai->qu,
+ adns__findtype(rrtype),
+ rrtype, &pai->qu->vb, id,
+ adns_qf_quoteok_query, pai->now, &ctx);
if (st) return st;
- nqu->parent= pai->qu;
- LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
return adns_s_ok;
}
#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
{ adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_##memb, \
GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
- adns__ckl_hostname, 0, adns__getrrsz_default, CDR(__VA_ARGS__) }
+ adns__ckl_hostname, 0, adns__getrrsz_default, adns__query_send, \
+ CDR(__VA_ARGS__) }
#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
{ adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_flat, \
GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
- adns__ckl_hostname, 0, adns__getrrsz_default, CDR(__VA_ARGS__) }
+ adns__ckl_hostname, 0, adns__getrrsz_default, adns__query_send, \
+ CDR(__VA_ARGS__) }
#define di_0 0
DEEP_TYPE(mx_raw, "MX", "raw",intstr, mx_raw, mx_raw,inthost ),
DEEP_TYPE(txt, "TXT", 0, manyistr, txt, 0, txt ),
DEEP_TYPE(rp_raw, "RP", "raw",strpair, rp, 0, rp ),
+FLAT_TYPE(aaaa, "AAAA", 0, in6addr, in6addr, in6addr,in6addr ),
DEEP_TYPE(srv_raw,"SRV", "raw",srvraw , srvraw, srv, srvraw,
.checklabel= ckl_srv, .postsort= postsort_srv),
FLAT_TYPE(addr, "A", "addr", addr, addr, addr, addr,
- .getrrsz= gsz_addr),
+ .getrrsz= gsz_addr, .query_send= qs_addr),
DEEP_TYPE(ns, "NS", "+addr",hostaddr, hostaddr,hostaddr,hostaddr ),
DEEP_TYPE(ptr, "PTR","checked",str, ptr, 0, domain,
.checklabel= ckl_ptr),
DEEP_TYPE(rp, "RP", "822", strpair, rp, 0, rp ),
};
+static const typeinfo tinfo_addrsub =
+FLAT_TYPE(none, "<addr>","sub",addr, addr, 0, addr,
+ .getrrsz= gsz_addr);
+
static const typeinfo typeinfo_unknown=
DEEP_TYPE(unknown,0, "unknown",byteblock,opaque, 0, opaque );
~ianmdlvl / adns.git / blobdiff