diff options
Diffstat (limited to 'contrib/unbound/util/data/msgencode.c')
| -rw-r--r-- | contrib/unbound/util/data/msgencode.c | 294 |
1 files changed, 146 insertions, 148 deletions
diff --git a/contrib/unbound/util/data/msgencode.c b/contrib/unbound/util/data/msgencode.c index 157796d..26b5dea 100644 --- a/contrib/unbound/util/data/msgencode.c +++ b/contrib/unbound/util/data/msgencode.c @@ -21,16 +21,16 @@ * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @@ -40,7 +40,6 @@ */ #include "config.h" -#include <ldns/wire2host.h> #include "util/data/msgencode.h" #include "util/data/msgreply.h" #include "util/data/msgparse.h" @@ -48,6 +47,7 @@ #include "util/log.h" #include "util/regional.h" #include "util/net_help.h" +#include "ldns/sbuffer.h" /** return code that means the function ran out of memory. negative so it does * not conflict with DNS rcodes. */ @@ -243,7 +243,7 @@ compress_tree_store(uint8_t* dname, int labs, size_t offset, /** compress a domain name */ static int -write_compressed_dname(ldns_buffer* pkt, uint8_t* dname, int labs, +write_compressed_dname(sldns_buffer* pkt, uint8_t* dname, int labs, struct compress_tree_node* p) { /* compress it */ @@ -253,32 +253,32 @@ write_compressed_dname(ldns_buffer* pkt, uint8_t* dname, int labs, if(labs == 1) { /* write root label */ - if(ldns_buffer_remaining(pkt) < 1) + if(sldns_buffer_remaining(pkt) < 1) return 0; - ldns_buffer_write_u8(pkt, 0); + sldns_buffer_write_u8(pkt, 0); return 1; } /* copy the first couple of labels */ while(labcopy--) { lablen = *dname++; - if(ldns_buffer_remaining(pkt) < (size_t)lablen+1) + if(sldns_buffer_remaining(pkt) < (size_t)lablen+1) return 0; - ldns_buffer_write_u8(pkt, lablen); - ldns_buffer_write(pkt, dname, lablen); + sldns_buffer_write_u8(pkt, lablen); + sldns_buffer_write(pkt, dname, lablen); dname += lablen; } /* insert compression ptr */ - if(ldns_buffer_remaining(pkt) < 2) + if(sldns_buffer_remaining(pkt) < 2) return 0; ptr = PTR_CREATE(p->offset); - ldns_buffer_write_u16(pkt, ptr); + sldns_buffer_write_u16(pkt, ptr); return 1; } /** compress owner name of RR, return RETVAL_OUTMEM RETVAL_TRUNC */ static int -compress_owner(struct ub_packed_rrset_key* key, ldns_buffer* pkt, +compress_owner(struct ub_packed_rrset_key* key, sldns_buffer* pkt, struct regional* region, struct compress_tree_node** tree, size_t owner_pos, uint16_t* owner_ptr, int owner_labs) { @@ -296,13 +296,13 @@ compress_owner(struct ub_packed_rrset_key* key, ldns_buffer* pkt, owner_labs, p)) return RETVAL_TRUNC; /* check if typeclass+4 ttl + rdatalen is available */ - if(ldns_buffer_remaining(pkt) < 4+4+2) + if(sldns_buffer_remaining(pkt) < 4+4+2) return RETVAL_TRUNC; } else { /* no compress */ - if(ldns_buffer_remaining(pkt) < key->rk.dname_len+4+4+2) + if(sldns_buffer_remaining(pkt) < key->rk.dname_len+4+4+2) return RETVAL_TRUNC; - ldns_buffer_write(pkt, key->rk.dname, + sldns_buffer_write(pkt, key->rk.dname, key->rk.dname_len); if(owner_pos <= PTR_MAX_OFFSET) *owner_ptr = htons(PTR_CREATE(owner_pos)); @@ -313,13 +313,13 @@ compress_owner(struct ub_packed_rrset_key* key, ldns_buffer* pkt, } else { /* always compress 2nd-further RRs in RRset */ if(owner_labs == 1) { - if(ldns_buffer_remaining(pkt) < 1+4+4+2) + if(sldns_buffer_remaining(pkt) < 1+4+4+2) return RETVAL_TRUNC; - ldns_buffer_write_u8(pkt, 0); + sldns_buffer_write_u8(pkt, 0); } else { - if(ldns_buffer_remaining(pkt) < 2+4+4+2) + if(sldns_buffer_remaining(pkt) < 2+4+4+2) return RETVAL_TRUNC; - ldns_buffer_write(pkt, owner_ptr, 2); + sldns_buffer_write(pkt, owner_ptr, 2); } } return RETVAL_OK; @@ -327,12 +327,12 @@ compress_owner(struct ub_packed_rrset_key* key, ldns_buffer* pkt, /** compress any domain name to the packet, return RETVAL_* */ static int -compress_any_dname(uint8_t* dname, ldns_buffer* pkt, int labs, +compress_any_dname(uint8_t* dname, sldns_buffer* pkt, int labs, struct regional* region, struct compress_tree_node** tree) { struct compress_tree_node* p; struct compress_tree_node** insertpt = NULL; - size_t pos = ldns_buffer_position(pkt); + size_t pos = sldns_buffer_position(pkt); if((p = compress_tree_lookup(tree, dname, labs, &insertpt))) { if(!write_compressed_dname(pkt, dname, labs, p)) return RETVAL_TRUNC; @@ -346,27 +346,27 @@ compress_any_dname(uint8_t* dname, ldns_buffer* pkt, int labs, } /** return true if type needs domain name compression in rdata */ -static const ldns_rr_descriptor* +static const sldns_rr_descriptor* type_rdata_compressable(struct ub_packed_rrset_key* key) { uint16_t t = ntohs(key->rk.type); - if(ldns_rr_descript(t) && - ldns_rr_descript(t)->_compress == LDNS_RR_COMPRESS) - return ldns_rr_descript(t); + if(sldns_rr_descript(t) && + sldns_rr_descript(t)->_compress == LDNS_RR_COMPRESS) + return sldns_rr_descript(t); return 0; } /** compress domain names in rdata, return RETVAL_* */ static int -compress_rdata(ldns_buffer* pkt, uint8_t* rdata, size_t todolen, +compress_rdata(sldns_buffer* pkt, uint8_t* rdata, size_t todolen, struct regional* region, struct compress_tree_node** tree, - const ldns_rr_descriptor* desc) + const sldns_rr_descriptor* desc) { int labs, r, rdf = 0; - size_t dname_len, len, pos = ldns_buffer_position(pkt); + size_t dname_len, len, pos = sldns_buffer_position(pkt); uint8_t count = desc->_dname_count; - ldns_buffer_skip(pkt, 2); /* rdata len fill in later */ + sldns_buffer_skip(pkt, 2); /* rdata len fill in later */ /* space for rdatalen checked for already */ rdata += 2; todolen -= 2; @@ -390,9 +390,9 @@ compress_rdata(ldns_buffer* pkt, uint8_t* rdata, size_t todolen, } if(len) { /* copy over */ - if(ldns_buffer_remaining(pkt) < len) + if(sldns_buffer_remaining(pkt) < len) return RETVAL_TRUNC; - ldns_buffer_write(pkt, rdata, len); + sldns_buffer_write(pkt, rdata, len); todolen -= len; rdata += len; } @@ -400,19 +400,19 @@ compress_rdata(ldns_buffer* pkt, uint8_t* rdata, size_t todolen, } /* copy remainder */ if(todolen > 0) { - if(ldns_buffer_remaining(pkt) < todolen) + if(sldns_buffer_remaining(pkt) < todolen) return RETVAL_TRUNC; - ldns_buffer_write(pkt, rdata, todolen); + sldns_buffer_write(pkt, rdata, todolen); } /* set rdata len */ - ldns_buffer_write_u16_at(pkt, pos, ldns_buffer_position(pkt)-pos-2); + sldns_buffer_write_u16_at(pkt, pos, sldns_buffer_position(pkt)-pos-2); return RETVAL_OK; } /** Returns true if RR type should be included */ static int -rrset_belongs_in_reply(ldns_pkt_section s, uint16_t rrtype, uint16_t qtype, +rrset_belongs_in_reply(sldns_pkt_section s, uint16_t rrtype, uint16_t qtype, int dnssec) { if(dnssec) @@ -440,10 +440,10 @@ rrset_belongs_in_reply(ldns_pkt_section s, uint16_t rrtype, uint16_t qtype, /** store rrset in buffer in wireformat, return RETVAL_* */ static int -packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, - uint16_t* num_rrs, uint32_t timenow, struct regional* region, +packed_rrset_encode(struct ub_packed_rrset_key* key, sldns_buffer* pkt, + uint16_t* num_rrs, time_t timenow, struct regional* region, int do_data, int do_sig, struct compress_tree_node** tree, - ldns_pkt_section s, uint16_t qtype, int dnssec, size_t rr_offset) + sldns_pkt_section s, uint16_t qtype, int dnssec, size_t rr_offset) { size_t i, j, owner_pos; int r, owner_labs; @@ -456,10 +456,10 @@ packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, return RETVAL_OK; owner_labs = dname_count_labels(key->rk.dname); - owner_pos = ldns_buffer_position(pkt); + owner_pos = sldns_buffer_position(pkt); if(do_data) { - const ldns_rr_descriptor* c = type_rdata_compressable(key); + const sldns_rr_descriptor* c = type_rdata_compressable(key); for(i=0; i<data->count; i++) { /* rrset roundrobin */ j = (i + rr_offset) % data->count; @@ -467,11 +467,11 @@ packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, owner_pos, &owner_ptr, owner_labs)) != RETVAL_OK) return r; - ldns_buffer_write(pkt, &key->rk.type, 2); - ldns_buffer_write(pkt, &key->rk.rrset_class, 2); + sldns_buffer_write(pkt, &key->rk.type, 2); + sldns_buffer_write(pkt, &key->rk.rrset_class, 2); if(data->rr_ttl[j] < timenow) - ldns_buffer_write_u32(pkt, 0); - else ldns_buffer_write_u32(pkt, + sldns_buffer_write_u32(pkt, 0); + else sldns_buffer_write_u32(pkt, data->rr_ttl[j]-timenow); if(c) { if((r=compress_rdata(pkt, data->rr_data[j], @@ -479,9 +479,9 @@ packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, != RETVAL_OK) return r; } else { - if(ldns_buffer_remaining(pkt) < data->rr_len[j]) + if(sldns_buffer_remaining(pkt) < data->rr_len[j]) return RETVAL_TRUNC; - ldns_buffer_write(pkt, data->rr_data[j], + sldns_buffer_write(pkt, data->rr_data[j], data->rr_len[j]); } } @@ -491,28 +491,28 @@ packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, size_t total = data->count+data->rrsig_count; for(i=data->count; i<total; i++) { if(owner_ptr && owner_labs != 1) { - if(ldns_buffer_remaining(pkt) < + if(sldns_buffer_remaining(pkt) < 2+4+4+data->rr_len[i]) return RETVAL_TRUNC; - ldns_buffer_write(pkt, &owner_ptr, 2); + sldns_buffer_write(pkt, &owner_ptr, 2); } else { if((r=compress_any_dname(key->rk.dname, pkt, owner_labs, region, tree)) != RETVAL_OK) return r; - if(ldns_buffer_remaining(pkt) < + if(sldns_buffer_remaining(pkt) < 4+4+data->rr_len[i]) return RETVAL_TRUNC; } - ldns_buffer_write_u16(pkt, LDNS_RR_TYPE_RRSIG); - ldns_buffer_write(pkt, &key->rk.rrset_class, 2); + sldns_buffer_write_u16(pkt, LDNS_RR_TYPE_RRSIG); + sldns_buffer_write(pkt, &key->rk.rrset_class, 2); if(data->rr_ttl[i] < timenow) - ldns_buffer_write_u32(pkt, 0); - else ldns_buffer_write_u32(pkt, + sldns_buffer_write_u32(pkt, 0); + else sldns_buffer_write_u32(pkt, data->rr_ttl[i]-timenow); /* rrsig rdata cannot be compressed, perform 100+ byte * memcopy. */ - ldns_buffer_write(pkt, data->rr_data[i], + sldns_buffer_write(pkt, data->rr_data[i], data->rr_len[i]); } } @@ -528,9 +528,9 @@ packed_rrset_encode(struct ub_packed_rrset_key* key, ldns_buffer* pkt, /** store msg section in wireformat buffer, return RETVAL_* */ static int insert_section(struct reply_info* rep, size_t num_rrsets, uint16_t* num_rrs, - ldns_buffer* pkt, size_t rrsets_before, uint32_t timenow, + sldns_buffer* pkt, size_t rrsets_before, time_t timenow, struct regional* region, struct compress_tree_node** tree, - ldns_pkt_section s, uint16_t qtype, int dnssec, size_t rr_offset) + sldns_pkt_section s, uint16_t qtype, int dnssec, size_t rr_offset) { int r; size_t i, setstart; @@ -539,36 +539,36 @@ insert_section(struct reply_info* rep, size_t num_rrsets, uint16_t* num_rrs, if(s == LDNS_SECTION_ANSWER && qtype == LDNS_RR_TYPE_ANY) dnssec = 1; /* include all types in ANY answer */ for(i=0; i<num_rrsets; i++) { - setstart = ldns_buffer_position(pkt); + setstart = sldns_buffer_position(pkt); if((r=packed_rrset_encode(rep->rrsets[rrsets_before+i], pkt, num_rrs, timenow, region, 1, 1, tree, s, qtype, dnssec, rr_offset)) != RETVAL_OK) { /* Bad, but if due to size must set TC bit */ /* trim off the rrset neatly. */ - ldns_buffer_set_position(pkt, setstart); + sldns_buffer_set_position(pkt, setstart); return r; } } } else { for(i=0; i<num_rrsets; i++) { - setstart = ldns_buffer_position(pkt); + setstart = sldns_buffer_position(pkt); if((r=packed_rrset_encode(rep->rrsets[rrsets_before+i], pkt, num_rrs, timenow, region, 1, 0, tree, s, qtype, dnssec, rr_offset)) != RETVAL_OK) { - ldns_buffer_set_position(pkt, setstart); + sldns_buffer_set_position(pkt, setstart); return r; } } if(dnssec) for(i=0; i<num_rrsets; i++) { - setstart = ldns_buffer_position(pkt); + setstart = sldns_buffer_position(pkt); if((r=packed_rrset_encode(rep->rrsets[rrsets_before+i], pkt, num_rrs, timenow, region, 0, 1, tree, s, qtype, dnssec, rr_offset)) != RETVAL_OK) { - ldns_buffer_set_position(pkt, setstart); + sldns_buffer_set_position(pkt, setstart); return r; } } @@ -579,21 +579,21 @@ insert_section(struct reply_info* rep, size_t num_rrsets, uint16_t* num_rrs, /** store query section in wireformat buffer, return RETVAL */ static int insert_query(struct query_info* qinfo, struct compress_tree_node** tree, - ldns_buffer* buffer, struct regional* region) + sldns_buffer* buffer, struct regional* region) { - if(ldns_buffer_remaining(buffer) < + if(sldns_buffer_remaining(buffer) < qinfo->qname_len+sizeof(uint16_t)*2) return RETVAL_TRUNC; /* buffer too small */ /* the query is the first name inserted into the tree */ if(!compress_tree_store(qinfo->qname, dname_count_labels(qinfo->qname), - ldns_buffer_position(buffer), region, NULL, tree)) + sldns_buffer_position(buffer), region, NULL, tree)) return RETVAL_OUTMEM; - if(ldns_buffer_current(buffer) == qinfo->qname) - ldns_buffer_skip(buffer, (ssize_t)qinfo->qname_len); - else ldns_buffer_write(buffer, qinfo->qname, qinfo->qname_len); - ldns_buffer_write_u16(buffer, qinfo->qtype); - ldns_buffer_write_u16(buffer, qinfo->qclass); + if(sldns_buffer_current(buffer) == qinfo->qname) + sldns_buffer_skip(buffer, (ssize_t)qinfo->qname_len); + else sldns_buffer_write(buffer, qinfo->qname, qinfo->qname_len); + sldns_buffer_write_u16(buffer, qinfo->qtype); + sldns_buffer_write_u16(buffer, qinfo->qclass); return RETVAL_OK; } @@ -624,7 +624,7 @@ positive_answer(struct reply_info* rep, uint16_t qtype) { int reply_info_encode(struct query_info* qinfo, struct reply_info* rep, - uint16_t id, uint16_t flags, ldns_buffer* buffer, uint32_t timenow, + uint16_t id, uint16_t flags, sldns_buffer* buffer, time_t timenow, struct regional* region, uint16_t udpsize, int dnssec) { uint16_t ancount=0, nscount=0, arcount=0; @@ -632,17 +632,17 @@ reply_info_encode(struct query_info* qinfo, struct reply_info* rep, int r; size_t rr_offset; - ldns_buffer_clear(buffer); - if(udpsize < ldns_buffer_limit(buffer)) - ldns_buffer_set_limit(buffer, udpsize); - if(ldns_buffer_remaining(buffer) < LDNS_HEADER_SIZE) + sldns_buffer_clear(buffer); + if(udpsize < sldns_buffer_limit(buffer)) + sldns_buffer_set_limit(buffer, udpsize); + if(sldns_buffer_remaining(buffer) < LDNS_HEADER_SIZE) return 0; - ldns_buffer_write(buffer, &id, sizeof(uint16_t)); - ldns_buffer_write_u16(buffer, flags); - ldns_buffer_write_u16(buffer, rep->qdcount); + sldns_buffer_write(buffer, &id, sizeof(uint16_t)); + sldns_buffer_write_u16(buffer, flags); + sldns_buffer_write_u16(buffer, rep->qdcount); /* set an, ns, ar counts to zero in case of small packets */ - ldns_buffer_write(buffer, "\000\000\000\000\000\000", 6); + sldns_buffer_write(buffer, "\000\000\000\000\000\000", 6); /* insert query section */ if(rep->qdcount) { @@ -650,16 +650,17 @@ reply_info_encode(struct query_info* qinfo, struct reply_info* rep, RETVAL_OK) { if(r == RETVAL_TRUNC) { /* create truncated message */ - ldns_buffer_write_u16_at(buffer, 4, 0); - LDNS_TC_SET(ldns_buffer_begin(buffer)); - ldns_buffer_flip(buffer); + sldns_buffer_write_u16_at(buffer, 4, 0); + LDNS_TC_SET(sldns_buffer_begin(buffer)); + sldns_buffer_flip(buffer); return 1; } return 0; } } - /* roundrobin offset. using query id for random number */ - rr_offset = RRSET_ROUNDROBIN?id:0; + /* roundrobin offset. using query id for random number. With ntohs + * for different roundrobins for sequential id client senders. */ + rr_offset = RRSET_ROUNDROBIN?ntohs(id):0; /* insert answer section */ if((r=insert_section(rep, rep->an_numrrsets, &ancount, buffer, @@ -667,14 +668,14 @@ reply_info_encode(struct query_info* qinfo, struct reply_info* rep, dnssec, rr_offset)) != RETVAL_OK) { if(r == RETVAL_TRUNC) { /* create truncated message */ - ldns_buffer_write_u16_at(buffer, 6, ancount); - LDNS_TC_SET(ldns_buffer_begin(buffer)); - ldns_buffer_flip(buffer); + sldns_buffer_write_u16_at(buffer, 6, ancount); + LDNS_TC_SET(sldns_buffer_begin(buffer)); + sldns_buffer_flip(buffer); return 1; } return 0; } - ldns_buffer_write_u16_at(buffer, 6, ancount); + sldns_buffer_write_u16_at(buffer, 6, ancount); /* if response is positive answer, auth/add sections are not required */ if( ! (MINIMAL_RESPONSES && positive_answer(rep, qinfo->qtype)) ) { @@ -685,14 +686,14 @@ reply_info_encode(struct query_info* qinfo, struct reply_info* rep, dnssec, rr_offset)) != RETVAL_OK) { if(r == RETVAL_TRUNC) { /* create truncated message */ - ldns_buffer_write_u16_at(buffer, 8, nscount); - LDNS_TC_SET(ldns_buffer_begin(buffer)); - ldns_buffer_flip(buffer); + sldns_buffer_write_u16_at(buffer, 8, nscount); + LDNS_TC_SET(sldns_buffer_begin(buffer)); + sldns_buffer_flip(buffer); return 1; } return 0; } - ldns_buffer_write_u16_at(buffer, 8, nscount); + sldns_buffer_write_u16_at(buffer, 8, nscount); /* insert add section */ if((r=insert_section(rep, rep->ar_numrrsets, &arcount, buffer, @@ -701,18 +702,15 @@ reply_info_encode(struct query_info* qinfo, struct reply_info* rep, dnssec, rr_offset)) != RETVAL_OK) { if(r == RETVAL_TRUNC) { /* no need to set TC bit, this is the additional */ - ldns_buffer_write_u16_at(buffer, 10, arcount); - ldns_buffer_flip(buffer); + sldns_buffer_write_u16_at(buffer, 10, arcount); + sldns_buffer_flip(buffer); return 1; } return 0; } - ldns_buffer_write_u16_at(buffer, 10, arcount); - } else { - ldns_buffer_write_u16_at(buffer, 8, nscount); - ldns_buffer_write_u16_at(buffer, 10, arcount); + sldns_buffer_write_u16_at(buffer, 10, arcount); } - ldns_buffer_flip(buffer); + sldns_buffer_flip(buffer); return 1; } @@ -726,31 +724,31 @@ calc_edns_field_size(struct edns_data* edns) } void -attach_edns_record(ldns_buffer* pkt, struct edns_data* edns) +attach_edns_record(sldns_buffer* pkt, struct edns_data* edns) { size_t len; if(!edns || !edns->edns_present) return; /* inc additional count */ - ldns_buffer_write_u16_at(pkt, 10, - ldns_buffer_read_u16_at(pkt, 10) + 1); - len = ldns_buffer_limit(pkt); - ldns_buffer_clear(pkt); - ldns_buffer_set_position(pkt, len); + sldns_buffer_write_u16_at(pkt, 10, + sldns_buffer_read_u16_at(pkt, 10) + 1); + len = sldns_buffer_limit(pkt); + sldns_buffer_clear(pkt); + sldns_buffer_set_position(pkt, len); /* write EDNS record */ - ldns_buffer_write_u8(pkt, 0); /* '.' label */ - ldns_buffer_write_u16(pkt, LDNS_RR_TYPE_OPT); /* type */ - ldns_buffer_write_u16(pkt, edns->udp_size); /* class */ - ldns_buffer_write_u8(pkt, edns->ext_rcode); /* ttl */ - ldns_buffer_write_u8(pkt, edns->edns_version); - ldns_buffer_write_u16(pkt, edns->bits); - ldns_buffer_write_u16(pkt, 0); /* rdatalen */ - ldns_buffer_flip(pkt); + sldns_buffer_write_u8(pkt, 0); /* '.' label */ + sldns_buffer_write_u16(pkt, LDNS_RR_TYPE_OPT); /* type */ + sldns_buffer_write_u16(pkt, edns->udp_size); /* class */ + sldns_buffer_write_u8(pkt, edns->ext_rcode); /* ttl */ + sldns_buffer_write_u8(pkt, edns->edns_version); + sldns_buffer_write_u16(pkt, edns->bits); + sldns_buffer_write_u16(pkt, 0); /* rdatalen */ + sldns_buffer_flip(pkt); } int reply_info_answer_encode(struct query_info* qinf, struct reply_info* rep, - uint16_t id, uint16_t qflags, ldns_buffer* pkt, uint32_t timenow, + uint16_t id, uint16_t qflags, sldns_buffer* pkt, time_t timenow, int cached, struct regional* region, uint16_t udpsize, struct edns_data* edns, int dnssec, int secure) { @@ -788,54 +786,54 @@ reply_info_answer_encode(struct query_info* qinf, struct reply_info* rep, } void -qinfo_query_encode(ldns_buffer* pkt, struct query_info* qinfo) +qinfo_query_encode(sldns_buffer* pkt, struct query_info* qinfo) { uint16_t flags = 0; /* QUERY, NOERROR */ - ldns_buffer_clear(pkt); - log_assert(ldns_buffer_remaining(pkt) >= 12+255+4/*max query*/); - ldns_buffer_skip(pkt, 2); /* id done later */ - ldns_buffer_write_u16(pkt, flags); - ldns_buffer_write_u16(pkt, 1); /* query count */ - ldns_buffer_write(pkt, "\000\000\000\000\000\000", 6); /* counts */ - ldns_buffer_write(pkt, qinfo->qname, qinfo->qname_len); - ldns_buffer_write_u16(pkt, qinfo->qtype); - ldns_buffer_write_u16(pkt, qinfo->qclass); - ldns_buffer_flip(pkt); + sldns_buffer_clear(pkt); + log_assert(sldns_buffer_remaining(pkt) >= 12+255+4/*max query*/); + sldns_buffer_skip(pkt, 2); /* id done later */ + sldns_buffer_write_u16(pkt, flags); + sldns_buffer_write_u16(pkt, 1); /* query count */ + sldns_buffer_write(pkt, "\000\000\000\000\000\000", 6); /* counts */ + sldns_buffer_write(pkt, qinfo->qname, qinfo->qname_len); + sldns_buffer_write_u16(pkt, qinfo->qtype); + sldns_buffer_write_u16(pkt, qinfo->qclass); + sldns_buffer_flip(pkt); } void -error_encode(ldns_buffer* buf, int r, struct query_info* qinfo, +error_encode(sldns_buffer* buf, int r, struct query_info* qinfo, uint16_t qid, uint16_t qflags, struct edns_data* edns) { uint16_t flags; - ldns_buffer_clear(buf); - ldns_buffer_write(buf, &qid, sizeof(uint16_t)); + sldns_buffer_clear(buf); + sldns_buffer_write(buf, &qid, sizeof(uint16_t)); flags = (uint16_t)(BIT_QR | BIT_RA | r); /* QR and retcode*/ flags |= (qflags & (BIT_RD|BIT_CD)); /* copy RD and CD bit */ - ldns_buffer_write_u16(buf, flags); + sldns_buffer_write_u16(buf, flags); if(qinfo) flags = 1; else flags = 0; - ldns_buffer_write_u16(buf, flags); + sldns_buffer_write_u16(buf, flags); flags = 0; - ldns_buffer_write(buf, &flags, sizeof(uint16_t)); - ldns_buffer_write(buf, &flags, sizeof(uint16_t)); - ldns_buffer_write(buf, &flags, sizeof(uint16_t)); + sldns_buffer_write(buf, &flags, sizeof(uint16_t)); + sldns_buffer_write(buf, &flags, sizeof(uint16_t)); + sldns_buffer_write(buf, &flags, sizeof(uint16_t)); if(qinfo) { - if(ldns_buffer_current(buf) == qinfo->qname) - ldns_buffer_skip(buf, (ssize_t)qinfo->qname_len); - else ldns_buffer_write(buf, qinfo->qname, qinfo->qname_len); - ldns_buffer_write_u16(buf, qinfo->qtype); - ldns_buffer_write_u16(buf, qinfo->qclass); + if(sldns_buffer_current(buf) == qinfo->qname) + sldns_buffer_skip(buf, (ssize_t)qinfo->qname_len); + else sldns_buffer_write(buf, qinfo->qname, qinfo->qname_len); + sldns_buffer_write_u16(buf, qinfo->qtype); + sldns_buffer_write_u16(buf, qinfo->qclass); } - ldns_buffer_flip(buf); + sldns_buffer_flip(buf); if(edns) { struct edns_data es = *edns; es.edns_version = EDNS_ADVERTISED_VERSION; es.udp_size = EDNS_ADVERTISED_SIZE; es.ext_rcode = 0; es.bits &= EDNS_DO; - if(ldns_buffer_limit(buf) + calc_edns_field_size(&es) > + if(sldns_buffer_limit(buf) + calc_edns_field_size(&es) > edns->udp_size) return; attach_edns_record(buf, &es); |
