/**
* The zone of the GNS authority
*/
- struct GNUNET_CRYPTO_EccPublicKey gns_authority;
+ struct GNUNET_CRYPTO_EccPublicSignKey gns_authority;
struct
{
/**
* The top-level GNS authoritative zone to query
*/
- struct GNUNET_CRYPTO_EccPublicKey authority_zone;
+ struct GNUNET_CRYPTO_EccPublicSignKey authority_zone;
/**
* called when resolution phase finishes
struct GNUNET_RESOLVER_RequestHandle *std_resolve;
/**
- * Pending Namestore task
+ * Pending Namestore lookup task
*/
struct GNUNET_NAMESTORE_QueueEntry *namestore_qe;
};
+/**
+ * Active namestore caching operations.
+ */
+struct CacheOps
+{
+
+ /**
+ * Organized in a DLL.
+ */
+ struct CacheOps *next;
+
+ /**
+ * Organized in a DLL.
+ */
+ struct CacheOps *prev;
+
+ /**
+ * Pending Namestore caching task.
+ */
+ struct GNUNET_NAMESTORE_QueueEntry *namestore_qe_cache;
+
+};
+
+
/**
* Our handle to the namestore service
*/
*/
static struct GNS_ResolverHandle *rlh_tail;
+/**
+ * Organized in a DLL.
+ */
+static struct CacheOps *co_head;
+
+/**
+ * Organized in a DLL.
+ */
+static struct CacheOps *co_tail;
+
+
/**
* Global configuration.
*/
/* Don't have this on W32, here's a naive implementation
* Was somehow removed on OS X ... */
void *
-memrchr (const void *s, int c, size_t n)
+memrchr (const void *s,
+ int c,
+ size_t n)
{
- size_t i;
- unsigned char *ucs = (unsigned char *) s;
+ const unsigned char *ucs = s;
+ ssize_t i;
for (i = n - 1; i >= 0; i--)
- if (ucs[i] == c)
+ if (c == (int) ucs[i])
return (void *) &ucs[i];
return NULL;
}
rd[i].flags = GNUNET_NAMESTORE_RF_NONE;
rd[i].expiration_time = pos->expiration_time;
}
- }
+ i++;
+ }
+ GNUNET_assert (i == n);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Transmitting standard DNS result with %u records\n",
+ n);
rh->proc (rh->proc_cls,
n,
rd);
const struct sockaddr_in *sa4;
const struct sockaddr_in6 *sa6;
- rh->std_resolve = NULL;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received %u bytes of DNS IP data\n",
+ addrlen);
if (NULL == addr)
{
+ rh->std_resolve = NULL;
transmit_lookup_dns_result (rh);
return;
}
GNS_resolver_lookup_cancel (rh);
return;
}
-
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Received DNS response for `%s' with %u answers\n",
+ rh->ac_tail->label,
+ (unsigned int) p->num_answers);
if ( (p->num_answers > 0) &&
(GNUNET_DNSPARSER_TYPE_CNAME == p->answers[0].type) &&
(GNUNET_DNSPARSER_TYPE_CNAME != rh->record_type) )
GNUNET_free (rh->name);
rh->name = GNUNET_strdup (p->answers[0].data.hostname);
start_resolver_lookup (rh);
+ GNUNET_DNSPARSER_free_packet (p);
return;
}
/* FIXME: add DNAME support */
unsigned int skip;
char buf[UINT16_MAX];
size_t buf_off;
+ size_t buf_start;
buf_off = 0;
skip = 0;
case GNUNET_DNSPARSER_TYPE_CNAME:
case GNUNET_DNSPARSER_TYPE_PTR:
case GNUNET_DNSPARSER_TYPE_NS:
+ buf_start = buf_off;
if (GNUNET_OK !=
GNUNET_DNSPARSER_builder_add_name (buf,
sizeof (buf),
skip++;
continue;
}
+ rd[i - skip].data_size = buf_off - buf_start;
+ rd[i - skip].data = &buf[buf_start];
break;
case GNUNET_DNSPARSER_TYPE_SOA:
+ buf_start = buf_off;
if (GNUNET_OK !=
GNUNET_DNSPARSER_builder_add_soa (buf,
sizeof (buf),
skip++;
continue;
}
+ rd[i - skip].data_size = buf_off - buf_start;
+ rd[i - skip].data = &buf[buf_start];
break;
case GNUNET_DNSPARSER_TYPE_MX:
+ buf_start = buf_off;
if (GNUNET_OK !=
GNUNET_DNSPARSER_builder_add_mx (buf,
sizeof (buf),
skip++;
continue;
}
+ rd[i - skip].data_size = buf_off - buf_start;
+ rd[i - skip].data = &buf[buf_start];
break;
case GNUNET_DNSPARSER_TYPE_SRV:
+ buf_start = buf_off;
if (GNUNET_OK !=
GNUNET_DNSPARSER_builder_add_srv (buf,
sizeof (buf),
skip++;
continue;
}
+ rd[i - skip].data_size = buf_off - buf_start;
+ rd[i - skip].data = &buf[buf_start];
break;
default:
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
ac = rh->ac_tail;
GNUNET_assert (NULL != ac);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Starting DNS lookup for `%s'\n",
+ ac->label);
GNUNET_assert (GNUNET_NO == ac->gns_authority);
switch (((const struct sockaddr *) &ac->authority_info.dns_authority.dns_ip)->sa_family)
{
query = GNUNET_new (struct GNUNET_DNSPARSER_Query);
query->name = GNUNET_strdup (ac->label);
query->type = rh->record_type;
- query->class = GNUNET_TUN_DNS_CLASS_INTERNET;
+ query->dns_traffic_class = GNUNET_TUN_DNS_CLASS_INTERNET;
p = GNUNET_new (struct GNUNET_DNSPARSER_Packet);
p->queries = query;
p->num_queries = 1;
{
size_t nlen;
char *res;
+ struct AuthorityChain *ac;
nlen = strlen (cname);
if ( (nlen > 2) &&
}
GNUNET_free (rh->name);
rh->name = res;
+ ac = GNUNET_new (struct AuthorityChain);
+ ac->rh = rh;
+ ac->gns_authority = GNUNET_YES;
+ ac->authority_info.gns_authority = rh->ac_tail->authority_info.gns_authority;
+ ac->label = resolver_lookup_get_next_label (rh);
+ /* tigger shortening */
+ if (NULL != rh->shorten_key)
+ GNS_shorten_start (rh->ac_tail->label,
+ &ac->authority_info.gns_authority,
+ rh->shorten_key);
+ /* add AC to tail */
+ GNUNET_CONTAINER_DLL_insert_tail (rh->ac_head,
+ rh->ac_tail,
+ ac);
rh->task_id = GNUNET_SCHEDULER_add_now (&recursive_resolution,
rh);
return;
/**
* Process a records that were decrypted from a block.
*
- * @param cls closure with the 'struct GNS_ResolverHandle'
+ * @param cls closure with the `struct GNS_ResolverHandle`
* @param rd_count number of entries in @a rd array
* @param rd array of records with data to store
*/
size_t off;
struct GNUNET_NAMESTORE_RecordData rd_new[rd_count];
unsigned int rd_off;
-
+
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Resolution succeeded for `%s' in zone %s, got %u records\n",
+ rh->ac_tail->label,
+ GNUNET_NAMESTORE_z2s (&rh->ac_tail->authority_info.gns_authority),
+ rd_count);
if (0 == rh->name_resolution_pos)
{
/* top-level match, are we done yet? */
(GNUNET_DNSPARSER_TYPE_CNAME == rd[0].record_type) &&
(GNUNET_DNSPARSER_TYPE_CNAME != rh->record_type) )
{
- cname = GNUNET_strndup (rd[0].data,
- rd[0].data_size);
+ off = 0;
+ cname = GNUNET_DNSPARSER_parse_name (rd[0].data,
+ rd[0].data_size,
+ &off);
+ if ( (NULL == cname) ||
+ (off != rd[0].data_size) )
+ {
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
handle_gns_cname_result (rh,
cname);
GNUNET_free (cname);
{
for (i=0;i<rd_count;i++)
{
- if (GNUNET_NAMESTORE_TYPE_VPN == rd[i].record_type)
+ switch (rd[i].record_type)
{
- af = (GNUNET_DNSPARSER_TYPE_A == rh->record_type) ? AF_INET : AF_INET6;
- if (sizeof (struct GNUNET_TUN_GnsVpnRecord) <
- rd[i].data_size)
+ case GNUNET_NAMESTORE_TYPE_VPN:
{
- GNUNET_break_op (0);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
- return;
+ af = (GNUNET_DNSPARSER_TYPE_A == rh->record_type) ? AF_INET : AF_INET6;
+ if (sizeof (struct GNUNET_TUN_GnsVpnRecord) <
+ rd[i].data_size)
+ {
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ vpn = (const struct GNUNET_TUN_GnsVpnRecord *) rd[i].data;
+ vname = (const char *) &vpn[1];
+ if ('\0' != vname[rd[i].data_size - 1 - sizeof (struct GNUNET_TUN_GnsVpnRecord)])
+ {
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ GNUNET_CRYPTO_hash (vname,
+ strlen (vname), // FIXME: +1?
+ &vhash);
+ vpn_ctx = GNUNET_new (struct VpnContext);
+ rh->vpn_ctx = vpn_ctx;
+ vpn_ctx->rh = rh;
+ vpn_ctx->rd_data_size = GNUNET_NAMESTORE_records_get_size (rd_count,
+ rd);
+ vpn_ctx->rd_data = GNUNET_malloc (vpn_ctx->rd_data_size);
+ (void) GNUNET_NAMESTORE_records_serialize (rd_count,
+ rd,
+ vpn_ctx->rd_data_size,
+ vpn_ctx->rd_data);
+ vpn_ctx->vpn_request = GNUNET_VPN_redirect_to_peer (vpn_handle,
+ af,
+ ntohs (vpn->proto),
+ &vpn->peer,
+ &vhash,
+ GNUNET_TIME_relative_to_absolute (VPN_TIMEOUT),
+ &vpn_allocation_cb,
+ rh);
+ return;
}
- vpn = (const struct GNUNET_TUN_GnsVpnRecord *) rd[i].data;
- vname = (const char *) &vpn[1];
- if ('\0' != vname[rd[i].data_size - 1 - sizeof (struct GNUNET_TUN_GnsVpnRecord)])
+ case GNUNET_NAMESTORE_TYPE_GNS2DNS:
{
- GNUNET_break_op (0);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
- return;
+ /* delegation to DNS */
+ goto do_recurse;
}
- GNUNET_CRYPTO_hash (vname,
- strlen (vname), // FIXME: +1?
- &vhash);
- vpn_ctx = GNUNET_new (struct VpnContext);
- rh->vpn_ctx = vpn_ctx;
- vpn_ctx->rh = rh;
- vpn_ctx->rd_data_size = GNUNET_NAMESTORE_records_get_size (rd_count,
- rd);
- vpn_ctx->rd_data = GNUNET_malloc (vpn_ctx->rd_data_size);
- (void) GNUNET_NAMESTORE_records_serialize (rd_count,
- rd,
- vpn_ctx->rd_data_size,
- vpn_ctx->rd_data);
- vpn_ctx->vpn_request = GNUNET_VPN_redirect_to_peer (vpn_handle,
- af,
- ntohs (vpn->proto),
- &vpn->peer,
- &vhash,
- GNUNET_NO,
- GNUNET_TIME_relative_to_absolute (VPN_TIMEOUT),
- &vpn_allocation_cb,
- rh);
- return;
+ default:
+ break;
}
}
}
rd_new[rd_off].data_size = scratch_off - scratch_start;
rd_off++;
}
- GNUNET_free (cname);
}
+ GNUNET_free_non_null (cname);
}
break;
case GNUNET_DNSPARSER_TYPE_SOA:
rd_new[rd_off].data_size = scratch_off - scratch_start;
rd_off++;
}
- GNUNET_DNSPARSER_free_soa (soa);
}
+ if (NULL != soa)
+ GNUNET_DNSPARSER_free_soa (soa);
}
break;
case GNUNET_DNSPARSER_TYPE_MX:
rd_new[rd_off].data_size = scratch_off - scratch_start;
rd_off++;
}
- GNUNET_DNSPARSER_free_mx (mx);
}
+ if (NULL != mx)
+ GNUNET_DNSPARSER_free_mx (mx);
}
break;
case GNUNET_DNSPARSER_TYPE_SRV:
rd_new[rd_off].data_size = scratch_off - scratch_start;
rd_off++;
}
- GNUNET_DNSPARSER_free_srv (srv);
}
+ if (NULL != srv)
+ GNUNET_DNSPARSER_free_srv (srv);
}
break;
case GNUNET_NAMESTORE_TYPE_PKEY:
/* tigger shortening */
if (NULL != rh->shorten_key)
{
- struct GNUNET_CRYPTO_EccPublicKey pub;
+ struct GNUNET_CRYPTO_EccPublicSignKey pub;
- if (rd[i].data_size != sizeof (struct GNUNET_CRYPTO_EccPublicKey))
+ if (rd[i].data_size != sizeof (struct GNUNET_CRYPTO_EccPublicSignKey))
{
GNUNET_break_op (0);
break;
&pub,
rh->shorten_key);
}
+ rd_off++;
+ break;
default:
+ rd_off++;
break;
}
}
GNS_resolver_lookup_cancel (rh);
return;
}
+ do_recurse:
/* need to recurse, check if we can */
for (i=0;i<rd_count;i++)
{
{
case GNUNET_NAMESTORE_TYPE_PKEY:
/* delegation to another zone */
- if (sizeof (struct GNUNET_CRYPTO_EccPublicKey) !=
+ if (sizeof (struct GNUNET_CRYPTO_EccPublicSignKey) !=
rd[i].data_size)
{
GNUNET_break_op (0);
ac->gns_authority = GNUNET_YES;
memcpy (&ac->authority_info.gns_authority,
rd[i].data,
- sizeof (struct GNUNET_CRYPTO_EccPublicKey));
+ sizeof (struct GNUNET_CRYPTO_EccPublicSignKey));
ac->label = resolver_lookup_get_next_label (rh);
/* tigger shortening */
if (NULL != rh->shorten_key)
/* recurse */
rh->task_id = GNUNET_SCHEDULER_add_now (&recursive_resolution,
rh);
- break;
- case GNUNET_DNSPARSER_TYPE_NS:
- /* resolution continues within DNS */
- if (GNUNET_DNSPARSER_MAX_NAME_LENGTH < rd[i].data_size)
- {
- GNUNET_break_op (0);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
- return;
- }
- /* find associated A/AAAA record */
- sa = NULL;
- sa_len = 0;
- for (j=0;j<rd_count;j++)
+ return;
+ case GNUNET_NAMESTORE_TYPE_GNS2DNS:
{
- switch (rd[j].record_type)
+ char *ns;
+ /* resolution continues within DNS */
+ if (GNUNET_DNSPARSER_MAX_NAME_LENGTH < rd[i].data_size)
{
- case GNUNET_DNSPARSER_TYPE_A:
- if (sizeof (struct in_addr) != rd[i].data_size)
- {
- GNUNET_break_op (0);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
- return;
- }
- /* FIXME: might want to check if we support IPv4 here,
- and otherwise skip this one and hope we find another */
- memset (&v4, 0, sizeof (v4));
- sa_len = sizeof (v4);
- v4.sin_family = AF_INET;
- v4.sin_port = htons (53);
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ /* find associated A/AAAA record */
+ sa = NULL;
+ sa_len = 0;
+ for (j=0;j<rd_count;j++)
+ {
+ switch (rd[j].record_type)
+ {
+ case GNUNET_DNSPARSER_TYPE_A:
+ if (sizeof (struct in_addr) != rd[j].data_size)
+ {
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ /* FIXME: might want to check if we support IPv4 here,
+ and otherwise skip this one and hope we find another */
+ memset (&v4, 0, sizeof (v4));
+ sa_len = sizeof (v4);
+ v4.sin_family = AF_INET;
+ v4.sin_port = htons (53);
#if HAVE_SOCKADDR_IN_SIN_LEN
- v4.sin_len = (u_char) sa_len;
+ v4.sin_len = (u_char) sa_len;
#endif
- memcpy (&v4.sin_addr,
- rd[j].data,
- sizeof (struct in_addr));
- sa = (struct sockaddr *) &v4;
- break;
- case GNUNET_DNSPARSER_TYPE_AAAA:
- if (sizeof (struct in6_addr) != rd[i].data_size)
- {
- GNUNET_break_op (0);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
- return;
- }
- /* FIXME: might want to check if we support IPv6 here,
- and otherwise skip this one and hope we find another */
- memset (&v6, 0, sizeof (v6));
- sa_len = sizeof (v6);
- v6.sin6_family = AF_INET6;
- v6.sin6_port = htons (53);
+ memcpy (&v4.sin_addr,
+ rd[j].data,
+ sizeof (struct in_addr));
+ sa = (struct sockaddr *) &v4;
+ break;
+ case GNUNET_DNSPARSER_TYPE_AAAA:
+ if (sizeof (struct in6_addr) != rd[j].data_size)
+ {
+ GNUNET_break_op (0);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ /* FIXME: might want to check if we support IPv6 here,
+ and otherwise skip this one and hope we find another */
+ memset (&v6, 0, sizeof (v6));
+ sa_len = sizeof (v6);
+ v6.sin6_family = AF_INET6;
+ v6.sin6_port = htons (53);
#if HAVE_SOCKADDR_IN_SIN_LEN
- v6.sin6_len = (u_char) sa_len;
+ v6.sin6_len = (u_char) sa_len;
#endif
- memcpy (&v6.sin6_addr,
- rd[j].data,
- sizeof (struct in6_addr));
- sa = (struct sockaddr *) &v6;
- break;
- default:
- break;
+ memcpy (&v6.sin6_addr,
+ rd[j].data,
+ sizeof (struct in6_addr));
+ sa = (struct sockaddr *) &v6;
+ break;
+ default:
+ break;
+ }
+ if (NULL != sa)
+ break;
}
- if (NULL != sa)
- break;
- }
- if (NULL == sa)
- {
- /* we cannot continue; NS without A/AAAA */
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
+ if (NULL == sa)
+ {
+ /* we cannot continue; NS without A/AAAA */
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ /* expand authority chain */
+ ac = GNUNET_new (struct AuthorityChain);
+ ac->rh = rh;
+ off = 0;
+ ns = GNUNET_DNSPARSER_parse_name (rd[i].data,
+ rd[i].data_size,
+ &off);
+ if ( (NULL == ns) ||
+ (off != rd[i].data_size) )
+ {
+ GNUNET_break_op (0); /* record not well-formed */
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ strcpy (ac->authority_info.dns_authority.name,
+ ns);
+ memcpy (&ac->authority_info.dns_authority.dns_ip,
+ sa,
+ sa_len);
+ /* for DNS recursion, the label is the full DNS name,
+ created from the remainder of the GNS name and the
+ name in the NS record */
+ GNUNET_asprintf (&ac->label,
+ "%.*s%s%s",
+ (int) rh->name_resolution_pos,
+ rh->name,
+ (0 != rh->name_resolution_pos) ? "." : "",
+ ns);
+ GNUNET_free (ns);
+ GNUNET_CONTAINER_DLL_insert_tail (rh->ac_head,
+ rh->ac_tail,
+ ac);
+ if (strlen (ac->label) > GNUNET_DNSPARSER_MAX_NAME_LENGTH)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ _("GNS lookup resulted in DNS name that is too long (`%s')\n"),
+ ac->label);
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ /* recurse */
+ rh->task_id = GNUNET_SCHEDULER_add_now (&recursive_resolution,
+ rh);
return;
}
- /* expand authority chain */
- ac = GNUNET_new (struct AuthorityChain);
- ac->rh = rh;
- strncpy (ac->authority_info.dns_authority.name,
- rd[i].data,
- rd[i].data_size);
- ac->authority_info.dns_authority.name[rd[i].data_size] = '\0';
- memcpy (&ac->authority_info.dns_authority.dns_ip,
- sa,
- sa_len);
- /* for DNS recursion, the label is the full DNS name,
- created from the remainder of the GNS name and the
- name in the NS record */
- GNUNET_asprintf (&ac->label,
- "%.*s%s",
- (int) rh->name_resolution_pos,
- rh->name,
- ac->authority_info.dns_authority.name);
- GNUNET_CONTAINER_DLL_insert_tail (rh->ac_head,
- rh->ac_tail,
- ac);
- if (strlen (ac->label) > GNUNET_DNSPARSER_MAX_NAME_LENGTH)
+ case GNUNET_DNSPARSER_TYPE_CNAME:
{
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- _("GNS lookup resulted in DNS name that is too long (`%s')\n"),
- ac->label);
- rh->proc (rh->proc_cls, 0, NULL);
- GNS_resolver_lookup_cancel (rh);
+ char *cname;
+
+ off = 0;
+ cname = GNUNET_DNSPARSER_parse_name (rd[i].data,
+ rd[i].data_size,
+ &off);
+ if ( (NULL == cname) ||
+ (off != rd[i].data_size) )
+ {
+ GNUNET_break_op (0); /* record not well-formed */
+ rh->proc (rh->proc_cls, 0, NULL);
+ GNS_resolver_lookup_cancel (rh);
+ return;
+ }
+ handle_gns_cname_result (rh,
+ cname);
+ GNUNET_free (cname);
return;
}
- /* recurse */
- rh->task_id = GNUNET_SCHEDULER_add_now (&recursive_resolution,
- rh);
- return;
- case GNUNET_DNSPARSER_TYPE_CNAME:
- cname = GNUNET_strndup (rd[i].data,
- rd[i].data_size);
- handle_gns_cname_result (rh,
- cname);
- GNUNET_free (cname);
- return;
/* FIXME: handle DNAME */
default:
/* skip */
* Function called once the namestore has completed the request for
* caching a block.
*
- * @param cls closure with the 'struct GNS_ResolverHandle'
+ * @param cls closure with the `struct CacheOps`
* @param success #GNUNET_OK on success
* @param emsg error message
*/
int32_t success,
const char *emsg)
{
- struct GNS_ResolverHandle *rh = cls;
+ struct CacheOps *co = cls;
- rh->namestore_qe = NULL;
+ co->namestore_qe_cache = NULL;
if (NULL != emsg)
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
_("Failed to cache GNS resolution: %s\n"),
emsg);
+ GNUNET_CONTAINER_DLL_remove (co_head,
+ co_tail,
+ co);
+ GNUNET_free (co);
}
* Iterator called on each result obtained for a DHT
* operation that expects a reply
*
- * @param cls closure with the 'struct GNS_ResolverHandle'
+ * @param cls closure with the `struct GNS_ResolverHandle`
* @param exp when will this value expire
* @param key key of the result
* @param get_path peers on reply path (or NULL if not recorded)
* [0] = datastore's first neighbor, [length - 1] = local peer
- * @param get_path_length number of entries in get_path
+ * @param get_path_length number of entries in @a get_path
* @param put_path peers on the PUT path (or NULL if not recorded)
* [0] = origin, [length - 1] = datastore
- * @param put_path_length number of entries in get_path
+ * @param put_path_length number of entries in @a put_path
* @param type type of the result
* @param size number of bytes in data
* @param data pointer to the result data
static void
handle_dht_response (void *cls,
struct GNUNET_TIME_Absolute exp,
- const struct GNUNET_HashCode * key,
+ const struct GNUNET_HashCode *key,
const struct GNUNET_PeerIdentity *get_path,
unsigned int get_path_length,
const struct GNUNET_PeerIdentity *put_path,
struct GNS_ResolverHandle *rh = cls;
struct AuthorityChain *ac = rh->ac_tail;
const struct GNUNET_NAMESTORE_Block *block;
+ struct CacheOps *co;
GNUNET_DHT_get_stop (rh->get_handle);
rh->get_handle = NULL;
GNUNET_CONTAINER_heap_remove_node (rh->dht_heap_node);
rh->dht_heap_node = NULL;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Handling response from the DHT\n");
if (size < sizeof (struct GNUNET_NAMESTORE_Block))
{
/* how did this pass DHT block validation!? */
}
block = data;
if (size !=
- ntohs (block->purpose.size) +
- sizeof (struct GNUNET_CRYPTO_EccPublicKey) +
+ ntohl (block->purpose.size) +
+ sizeof (struct GNUNET_CRYPTO_EccPublicSignKey) +
sizeof (struct GNUNET_CRYPTO_EccSignature))
{
/* how did this pass DHT block validation!? */
return;
}
/* Cache well-formed blocks */
- rh->namestore_qe = GNUNET_NAMESTORE_block_cache (namestore_handle,
- block,
- &namestore_cache_continuation,
- rh);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Caching response from the DHT in namestore\n");
+ co = GNUNET_new (struct CacheOps);
+ co->namestore_qe_cache = GNUNET_NAMESTORE_block_cache (namestore_handle,
+ block,
+ &namestore_cache_continuation,
+ co);
+ GNUNET_CONTAINER_DLL_insert (co_head,
+ co_tail,
+ co);
}
struct GNS_ResolverHandle *rx;
struct AuthorityChain *ac = rh->ac_tail;
const char *label = ac->label;
- const struct GNUNET_CRYPTO_EccPublicKey *auth = &ac->authority_info.gns_authority;
+ const struct GNUNET_CRYPTO_EccPublicSignKey *auth = &ac->authority_info.gns_authority;
struct GNUNET_HashCode query;
GNUNET_NAMESTORE_query_from_public_key (auth,
label,
&query);
+ GNUNET_assert (NULL != rh->namestore_qe);
rh->namestore_qe = NULL;
if ( (GNUNET_NO == rh->only_cached) &&
( (NULL == block) ||
(0 == GNUNET_TIME_absolute_get_remaining (GNUNET_TIME_absolute_ntoh (block->expiration_time)).rel_value_us) ) )
{
/* Namestore knows nothing; try DHT lookup */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Starting DHT lookup for `%s' in zone %s\n",
+ ac->label,
+ GNUNET_NAMESTORE_z2s (&ac->authority_info.gns_authority));
+ GNUNET_assert (NULL == rh->get_handle);
rh->get_handle = GNUNET_DHT_get_start (dht_handle,
GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
&query,
{
/* fail longest-standing DHT request */
rx = GNUNET_CONTAINER_heap_peek (dht_lookup_heap);
+ GNUNET_assert (NULL != rx);
rx->proc (rx->proc_cls, 0, NULL);
GNS_resolver_lookup_cancel (rx);
}
(0 == GNUNET_TIME_absolute_get_remaining (GNUNET_TIME_absolute_ntoh (block->expiration_time)).rel_value_us) )
{
/* DHT not permitted and no local result, fail */
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Resolution failed for `%s' in zone %s (DHT lookup not permitted by configuration)\n",
+ ac->label,
+ GNUNET_NAMESTORE_z2s (&ac->authority_info.gns_authority));
rh->proc (rh->proc_cls, 0, NULL);
GNS_resolver_lookup_cancel (rh);
return;
}
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Decrypting block from the namestore\n");
if (GNUNET_OK !=
GNUNET_NAMESTORE_block_decrypt (block,
auth,
struct AuthorityChain *ac = rh->ac_tail;
struct GNUNET_HashCode query;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Starting GNS resolution for `%s' in zone %s\n",
+ ac->label,
+ GNUNET_NAMESTORE_z2s (&ac->authority_info.gns_authority));
GNUNET_NAMESTORE_query_from_public_key (&ac->authority_info.gns_authority,
ac->label,
&query);
&query,
&handle_namestore_block_response,
rh);
+ GNUNET_assert (NULL != rh->namestore_qe);
}
GNS_resolver_lookup_cancel (rh);
return;
}
- if (GNUNET_YES == rh->ac_tail->gns_authority)
- recursive_gns_resolution_namestore (rh);
- else
- recursive_dns_resolution (rh);
+ if (GNUNET_YES == rh->ac_tail->gns_authority)
+ recursive_gns_resolution_namestore (rh);
+ else
+ recursive_dns_resolution (rh);
}
default:
af = AF_UNSPEC;
break;
- }
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Doing standard DNS lookup for `%s'\n",
+ rh->name);
rh->std_resolve = GNUNET_RESOLVER_ip_get (rh->name,
af,
DNS_LOOKUP_TIMEOUT,
if ( (NULL == x) ||
(NULL == y) ||
(GNUNET_OK !=
- GNUNET_CRYPTO_ecc_public_key_from_string (pkey,
+ GNUNET_CRYPTO_ecc_public_sign_key_from_string (pkey,
strlen (pkey),
&rh->authority_zone)) )
{
* @return handle to cancel operation
*/
struct GNS_ResolverHandle *
-GNS_resolver_lookup (const struct GNUNET_CRYPTO_EccPublicKey *zone,
+GNS_resolver_lookup (const struct GNUNET_CRYPTO_EccPublicSignKey *zone,
uint32_t record_type,
const char *name,
const struct GNUNET_CRYPTO_EccPrivateKey *shorten_key,
{
struct GNS_ResolverHandle *rh;
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ (NULL == shorten_key)
+ ? "Starting lookup for `%s' with shortening disabled\n"
+ : "Starting lookup for `%s' with shortening enabled\n",
+ name);
rh = GNUNET_new (struct GNS_ResolverHandle);
GNUNET_CONTAINER_DLL_insert (rlh_head,
rlh_tail,
}
if (NULL != rh->std_resolve)
{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Canceling standard DNS resolution\n");
GNUNET_RESOLVER_request_cancel (rh->std_resolve);
rh->std_resolve = NULL;
}
GNS_resolver_done ()
{
struct GNS_ResolverHandle *rh;
+ struct CacheOps *co;
/* abort active resolutions */
while (NULL != (rh = rlh_head))
rh->proc (rh->proc_cls, 0, NULL);
GNS_resolver_lookup_cancel (rh);
}
+ while (NULL != (co = co_head))
+ {
+ GNUNET_CONTAINER_DLL_remove (co_head,
+ co_tail,
+ co);
+ GNUNET_NAMESTORE_cancel (co->namestore_qe_cache);
+ GNUNET_free (co);
+ }
GNUNET_CONTAINER_heap_destroy (dht_lookup_heap);
dht_lookup_heap = NULL;
GNUNET_DNSSTUB_stop (dns_handle);
projects / oweals / gnunet.git / blobdiff