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HIP wireformat parsing

This commit is contained in:
Willem Toorop 2015-02-19 00:20:13 +01:00
parent 0a9477d9d7
commit 12d3ca6797
1 changed files with 70 additions and 3 deletions
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73
src/rr-dict.c
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@ -35,6 +35,7 @@
*/
#include "rr-dict.h"
#include "gldns/gbuffer.h"
#include "util-internal.h"
#include "types-internal.h"
#include "context.h"
@ -191,6 +192,72 @@ static priv_getdns_rdf_special ipseckey_gateway = {
ipseckey_gateway_rdf_end,
ipseckey_gateway_dict_set_value, ipseckey_gateway_list_append_value
};
static uint8_t *
hip_pk_algorithm_rdf_end(uint8_t *pkt, uint8_t *pkt_end, uint8_t *rdf)
{
return rdf + 4 > pkt_end ? NULL
: rdf + 4 + *rdf + gldns_read_uint16(rdf + 2) > pkt_end ? NULL
: rdf + 1;
}
static getdns_return_t
hip_pk_algorithm_dict_set_value(getdns_dict *dict, uint8_t *rdf)
{
return getdns_dict_set_int(dict, "pk_algorithm", rdf[1]);
}
static getdns_return_t
hip_pk_algorithm_list_append_value(getdns_list *list, uint8_t *rdf)
{
return getdns_list_append_int(list, rdf[1]);
}
static priv_getdns_rdf_special hip_pk_algorithm = {
hip_pk_algorithm_rdf_end,
hip_pk_algorithm_dict_set_value, hip_pk_algorithm_list_append_value
};
static uint8_t *
hip_hit_rdf_end(uint8_t *pkt, uint8_t *pkt_end, uint8_t *rdf)
{
return rdf + 3 > pkt_end ? NULL
: rdf + 3 + rdf[-1] + gldns_read_uint16(rdf + 1) > pkt_end ? NULL
: rdf + 1;
}
static getdns_return_t
hip_hit_dict_set_value(getdns_dict *dict, uint8_t *rdf)
{
getdns_bindata bindata = { rdf[-1], rdf + 3 };
return getdns_dict_set_bindata(dict, "hit", &bindata);
}
static getdns_return_t
hip_hit_list_append_value(getdns_list *list, uint8_t *rdf)
{
getdns_bindata bindata = { rdf[-1], rdf + 3 };
return getdns_list_append_bindata(list, &bindata);
}
static priv_getdns_rdf_special hip_hit = {
hip_hit_rdf_end, hip_hit_dict_set_value, hip_hit_list_append_value
};
static uint8_t *
hip_public_key_rdf_end(uint8_t *pkt, uint8_t *pkt_end, uint8_t *rdf)
{
return rdf + 2 > pkt_end ? NULL
: rdf + 2 + rdf[-2] + gldns_read_uint16(rdf) > pkt_end ? NULL
: rdf + 2 + rdf[-2] + gldns_read_uint16(rdf);
}
static getdns_return_t
hip_public_key_dict_set_value(getdns_dict *dict, uint8_t *rdf)
{
getdns_bindata bindata = { gldns_read_uint16(rdf), rdf + 2 + rdf[-2] };
return getdns_dict_set_bindata(dict, "public_key", &bindata);
}
static getdns_return_t
hip_public_key_list_append_value(getdns_list *list, uint8_t *rdf)
{
getdns_bindata bindata = { gldns_read_uint16(rdf), rdf + 2 + rdf[-2] };
return getdns_list_append_bindata(list, &bindata);
}
static priv_getdns_rdf_special hip_public_key = {
hip_public_key_rdf_end,
hip_public_key_dict_set_value, hip_public_key_list_append_value
};
static priv_getdns_rdata_def a_rdata[] = {
{ "ipv4_address" , GETDNS_RDF_A }};
@ -354,9 +421,9 @@ static priv_getdns_rdata_def tlsa_rdata[] = {
{ "matching_type" , GETDNS_RDF_I1 },
{ "certificate_association_data", GETDNS_RDF_X }};
static priv_getdns_rdata_def hip_rdata[] = {
{ "pk_algorithm" , GETDNS_RDF_SPECIAL, NULL },
{ "hit" , GETDNS_RDF_SPECIAL, NULL },
{ "public_key" , GETDNS_RDF_SPECIAL, NULL },
{ "pk_algorithm" , GETDNS_RDF_SPECIAL, &hip_pk_algorithm },
{ "hit" , GETDNS_RDF_SPECIAL, &hip_hit },
{ "public_key" , GETDNS_RDF_SPECIAL, &hip_public_key },
{ "rendezvous_servers" , GETDNS_RDF_N_M }};
static priv_getdns_rdata_def spf_rdata[] = {
{ "text" , GETDNS_RDF_S_M }};