1 files changed, 0 insertions, 638 deletions

diff --git a/src/namestore/namestore_api_common.c b/src/namestore/namestore_api_common.c
deleted file mode 100644
index 388722cd3..000000000
--- a/src/namestore/namestore_api_common.c
+++ /dev/null
@@ -1,638 +0,0 @@
-/*
-     This file is part of GNUnet.
-     (C) 2009-2013 Christian Grothoff (and other contributing authors)
-
-     GNUnet is free software; you can redistribute it and/or modify
-     it under the terms of the GNU General Public License as published
-     by the Free Software Foundation; either version 3, or (at your
-     option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     General Public License for more details.
-
-     You should have received a copy of the GNU General Public License
-     along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
-*/
-
-/**
- * @file namestore/namestore_api_common.c
- * @brief API to access the NAMESTORE service
- * @author Martin Schanzenbach
- * @author Matthias Wachs
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_util_lib.h"
-#include "gnunet_constants.h"
-#include "gnunet_signatures.h"
-#include "gnunet_arm_service.h"
-#include "gnunet_conversation_service.h"
-#include "gnunet_namestore_service.h"
-#include "gnunet_dnsparser_lib.h"
-#include "gnunet_tun_lib.h"
-#include "namestore.h"
-
-
-#define LOG(kind,...) GNUNET_log_from (kind, "namestore-api",__VA_ARGS__)
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-
-/**
- * Internal format of a record in the serialized form.
- */
-struct NetworkRecord
-{
-
-  /**
-   * Expiration time for the DNS record; relative or absolute depends
-   * on 'flags', network byte order.
-   */
-  uint64_t expiration_time GNUNET_PACKED;
-
-  /**
-   * Number of bytes in 'data', network byte order.
-   */
-  uint32_t data_size GNUNET_PACKED;
-
-  /**
-   * Type of the GNS/DNS record, network byte order.
-   */
-  uint32_t record_type GNUNET_PACKED;
-
-  /**
-   * Flags for the record, network byte order.
-   */
-  uint32_t flags GNUNET_PACKED;
-
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-/**
- * Convert a UTF-8 string to UTF-8 lowercase
- * @param src source string
- * @return converted result
- */
-char *
-GNUNET_NAMESTORE_normalize_string (const char *src)
-{
-  GNUNET_assert (NULL != src);
-  char *res = strdup (src);
-  /* normalize */
-  GNUNET_STRINGS_utf8_tolower(src, &res);
-  return res;
-}
-
-
-/**
- * Convert a zone key to a string (for printing debug messages).
- * This is one of the very few calls in the entire API that is
- * NOT reentrant!
- *
- * @param z the zone key
- * @return string form; will be overwritten by next call to #GNUNET_NAMESTORE_z2s
- */
-const char *
-GNUNET_NAMESTORE_z2s (const struct GNUNET_CRYPTO_EcdsaPublicKey *z)
-{
-  static char buf[sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey) * 8];
-  char *end;
-
-  end = GNUNET_STRINGS_data_to_string ((const unsigned char *) z,
-                                       sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                                       buf, sizeof (buf));
-  if (NULL == end)
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  *end = '\0';
-  return buf;
-}
-
-
-/**
- * Calculate how many bytes we will need to serialize the given
- * records.
- *
- * @param rd_count number of records in the rd array
- * @param rd array of #GNUNET_NAMESTORE_RecordData with @a rd_count elements
- * @return the required size to serialize
- */
-size_t
-GNUNET_NAMESTORE_records_get_size (unsigned int rd_count,
-                                   const struct GNUNET_NAMESTORE_RecordData *rd)
-{
-  unsigned int i;
-  size_t ret;
-
-  ret = sizeof (struct NetworkRecord) * rd_count;
-  for (i=0;i<rd_count;i++)
-  {
-    GNUNET_assert ((ret + rd[i].data_size) >= ret);
-    ret += rd[i].data_size;
-  }
-  return ret;
-}
-
-
-/**
- * Serialize the given records to the given destination buffer.
- *
- * @param rd_count number of records in the rd array
- * @param rd array of #GNUNET_NAMESTORE_RecordData with @a rd_count elements
- * @param dest_size size of the destination array
- * @param dest where to write the result
- * @return the size of serialized records, -1 if records do not fit
- */
-ssize_t
-GNUNET_NAMESTORE_records_serialize (unsigned int rd_count,
-                                    const struct GNUNET_NAMESTORE_RecordData *rd,
-                                    size_t dest_size,
-                                    char *dest)
-{
-  struct NetworkRecord rec;
-  unsigned int i;
-  size_t off;
-
-  off = 0;
-  for (i=0;i<rd_count;i++)
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Serializing record %u with flags %d and expiration time %llu\n",
-         i,
-         rd[i].flags,
-         (unsigned long long) rd[i].expiration_time);
-    rec.expiration_time = GNUNET_htonll (rd[i].expiration_time);
-    rec.data_size = htonl ((uint32_t) rd[i].data_size);
-    rec.record_type = htonl (rd[i].record_type);
-    rec.flags = htonl (rd[i].flags);
-    if (off + sizeof (rec) > dest_size)
-      return -1;
-    memcpy (&dest[off], &rec, sizeof (rec));
-    off += sizeof (rec);
-    if (off + rd[i].data_size > dest_size)
-      return -1;
-    memcpy (&dest[off], rd[i].data, rd[i].data_size);
-    off += rd[i].data_size;
-  }
-  return off;
-}
-
-
-/**
- * Compares if two records are equal (ignoring flags such
- * as authority, private and pending, but not relative vs.
- * absolute expiration time).
- *
- * @param a record
- * @param b record
- * @return #GNUNET_YES if the records are equal or #GNUNET_NO if they are not
- */
-int
-GNUNET_NAMESTORE_records_cmp (const struct GNUNET_NAMESTORE_RecordData *a,
-                              const struct GNUNET_NAMESTORE_RecordData *b)
-{
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Comparing records\n");
-  if (a->record_type != b->record_type)
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Record type %lu != %lu\n", a->record_type, b->record_type);
-    return GNUNET_NO;
-  }
-  if ((a->expiration_time != b->expiration_time) &&
-      ((a->expiration_time != 0) && (b->expiration_time != 0)))
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Expiration time %llu != %llu\n",
-         a->expiration_time,
-         b->expiration_time);
-    return GNUNET_NO;
-  }
-  if ((a->flags & GNUNET_NAMESTORE_RF_RCMP_FLAGS)
-       != (b->flags & GNUNET_NAMESTORE_RF_RCMP_FLAGS))
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Flags %lu (%lu) != %lu (%lu)\n", a->flags,
-         a->flags & GNUNET_NAMESTORE_RF_RCMP_FLAGS, b->flags,
-         b->flags & GNUNET_NAMESTORE_RF_RCMP_FLAGS);
-    return GNUNET_NO;
-  }
-  if (a->data_size != b->data_size)
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Data size %lu != %lu\n",
-         a->data_size,
-         b->data_size);
-    return GNUNET_NO;
-  }
-  if (0 != memcmp (a->data, b->data, a->data_size))
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Data contents do not match\n");
-    return GNUNET_NO;
-  }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Records are equal\n");
-  return GNUNET_YES;
-}
-
-
-/**
- * Deserialize the given records to the given destination.
- *
- * @param len size of the serialized record data
- * @param src the serialized record data
- * @param rd_count number of records in the rd array
- * @param dest where to put the data
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-int
-GNUNET_NAMESTORE_records_deserialize (size_t len,
-                                      const char *src,
-                                      unsigned int rd_count,
-                                      struct GNUNET_NAMESTORE_RecordData *dest)
-{
-  struct NetworkRecord rec;
-  unsigned int i;
-  size_t off;
-
-  off = 0;
-  for (i=0;i<rd_count;i++)
-  {
-    if (off + sizeof (rec) > len)
-      return GNUNET_SYSERR;
-    memcpy (&rec, &src[off], sizeof (rec));
-    dest[i].expiration_time = GNUNET_ntohll (rec.expiration_time);
-    dest[i].data_size = ntohl ((uint32_t) rec.data_size);
-    dest[i].record_type = ntohl (rec.record_type);
-    dest[i].flags = ntohl (rec.flags);
-    off += sizeof (rec);
-    if (off + dest[i].data_size > len)
-      return GNUNET_SYSERR;
-    dest[i].data = &src[off];
-    off += dest[i].data_size;
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Deserialized record %u with flags %d and expiration time %llu\n",
-         i,
-         dest[i].flags,
-         (unsigned long long) dest[i].expiration_time);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Returns the expiration time of the given block of records. The block
- * expiration time is the expiration time of the record with smallest
- * expiration time.
- *
- * @param rd_count number of records given in @a rd
- * @param rd array of records
- * @return absolute expiration time
- */
-struct GNUNET_TIME_Absolute
-GNUNET_NAMESTORE_record_get_expiration_time (unsigned int rd_count,
-                                             const struct GNUNET_NAMESTORE_RecordData *rd)
-{
-  unsigned int c;
-  struct GNUNET_TIME_Absolute expire;
-  struct GNUNET_TIME_Absolute at;
-  struct GNUNET_TIME_Relative rt;
-
-  if (NULL == rd)
-    return GNUNET_TIME_UNIT_ZERO_ABS;
-  expire = GNUNET_TIME_UNIT_FOREVER_ABS;
-  for (c = 0; c < rd_count; c++)
-  {
-    if (0 != (rd[c].flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
-    {
-      rt.rel_value_us = rd[c].expiration_time;
-      at = GNUNET_TIME_relative_to_absolute (rt);
-    }
-    else
-    {
-      at.abs_value_us = rd[c].expiration_time;
-    }
-    expire = GNUNET_TIME_absolute_min (at, expire);
-  }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Determined expiration time for block with %u records to be %s\n",
-       rd_count,
-       GNUNET_STRINGS_absolute_time_to_string (expire));
-  return expire;
-}
-
-
-/**
- * Derive session key and iv from label and public key.
- *
- * @param iv initialization vector to initialize
- * @param skey session key to initialize
- * @param label label to use for KDF
- * @param pub public key to use for KDF
- */
-static void
-derive_block_aes_key (struct GNUNET_CRYPTO_SymmetricInitializationVector *iv,
-                      struct GNUNET_CRYPTO_SymmetricSessionKey *skey,
-                      const char *label,
-                      const struct GNUNET_CRYPTO_EcdsaPublicKey *pub)
-{
-  static const char ctx_key[] = "gns-aes-ctx-key";
-  static const char ctx_iv[] = "gns-aes-ctx-iv";
-
-  GNUNET_CRYPTO_kdf (skey, sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
-                     pub, sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                     label, strlen (label),
-                     ctx_key, strlen (ctx_key),
-                     NULL, 0);
-  GNUNET_CRYPTO_kdf (iv, sizeof (struct GNUNET_CRYPTO_SymmetricInitializationVector),
-                     pub, sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                     label, strlen (label),
-                     ctx_iv, strlen (ctx_iv),
-                     NULL, 0);
-}
-
-
-/**
- * Sign name and records
- *
- * @param key the private key
- * @param expire block expiration
- * @param label the name for the records
- * @param rd record data
- * @param rd_count number of records
- * @return NULL on error (block too large)
- */
-struct GNUNET_NAMESTORE_Block *
-GNUNET_NAMESTORE_block_create (const struct GNUNET_CRYPTO_EcdsaPrivateKey *key,
-                               struct GNUNET_TIME_Absolute expire,
-                               const char *label,
-                               const struct GNUNET_NAMESTORE_RecordData *rd,
-                               unsigned int rd_count)
-{
-  size_t payload_len = GNUNET_NAMESTORE_records_get_size (rd_count, rd);
-  char payload[sizeof (uint32_t) + payload_len];
-  struct GNUNET_NAMESTORE_Block *block;
-  struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
-  struct GNUNET_CRYPTO_EcdsaPrivateKey *dkey;
-  struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
-  struct GNUNET_CRYPTO_SymmetricSessionKey skey;
-  uint32_t rd_count_nbo;
-
-  if (payload_len > GNUNET_NAMESTORE_MAX_VALUE_SIZE)
-    return NULL;
-  rd_count_nbo = htonl (rd_count);
-  memcpy (payload, &rd_count_nbo, sizeof (uint32_t));
-  GNUNET_assert (payload_len ==
-                 GNUNET_NAMESTORE_records_serialize (rd_count, rd,
-                                                     payload_len, &payload[sizeof (uint32_t)]));
-  block = GNUNET_malloc (sizeof (struct GNUNET_NAMESTORE_Block) +
-                         sizeof (uint32_t) + payload_len);
-  block->purpose.size = htonl (sizeof (uint32_t) + payload_len +
-                               sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) +
-                               sizeof (struct GNUNET_TIME_AbsoluteNBO));
-  block->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_GNS_RECORD_SIGN);
-  block->expiration_time = GNUNET_TIME_absolute_hton (expire);
-  dkey = GNUNET_CRYPTO_ecdsa_private_key_derive (key,
-                                       label,
-                                       "gns");
-  GNUNET_CRYPTO_ecdsa_key_get_public (dkey,
-                                    &block->derived_key);
-  GNUNET_CRYPTO_ecdsa_key_get_public (key,
-                                    &pkey);
-  derive_block_aes_key (&iv, &skey, label, &pkey);
-  GNUNET_break (payload_len + sizeof (uint32_t) ==
-                GNUNET_CRYPTO_symmetric_encrypt (payload, payload_len + sizeof (uint32_t),
-                                           &skey, &iv,
-                                           &block[1]));
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_ecdsa_sign (dkey,
-                              &block->purpose,
-                              &block->signature))
-  {
-    GNUNET_break (0);
-    GNUNET_free (dkey);
-    GNUNET_free (block);
-    return NULL;
-  }
-  GNUNET_free (dkey);
-  return block;
-}
-
-
-/**
- * Check if a signature is valid.  This API is used by the GNS Block
- * to validate signatures received from the network.
- *
- * @param block block to verify
- * @return #GNUNET_OK if the signature is valid
- */
-int
-GNUNET_NAMESTORE_block_verify (const struct GNUNET_NAMESTORE_Block *block)
-{
-  return GNUNET_CRYPTO_ecdsa_verify (GNUNET_SIGNATURE_PURPOSE_GNS_RECORD_SIGN,
-                                   &block->purpose,
-                                   &block->signature,
-                                   &block->derived_key);
-}
-
-
-/**
- * Decrypt block.
- *
- * @param block block to decrypt
- * @param zone_key public key of the zone
- * @param label the name for the records
- * @param proc function to call with the result
- * @param proc_cls closure for proc
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if the block was
- *        not well-formed
- */
-int
-GNUNET_NAMESTORE_block_decrypt (const struct GNUNET_NAMESTORE_Block *block,
-                                const struct GNUNET_CRYPTO_EcdsaPublicKey *zone_key,
-                                const char *label,
-                                GNUNET_NAMESTORE_RecordCallback proc,
-                                void *proc_cls)
-{
-  size_t payload_len = ntohl (block->purpose.size) -
-    sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) -
-    sizeof (struct GNUNET_TIME_AbsoluteNBO);
-  struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
-  struct GNUNET_CRYPTO_SymmetricSessionKey skey;
-
-  if (ntohl (block->purpose.size) <
-      sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) +
-      sizeof (struct GNUNET_TIME_AbsoluteNBO))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  derive_block_aes_key (&iv, &skey, label, zone_key);
-  {
-    char payload[payload_len];
-    uint32_t rd_count;
-
-    GNUNET_break (payload_len ==
-                  GNUNET_CRYPTO_symmetric_decrypt (&block[1], payload_len,
-                                             &skey, &iv,
-                                             payload));
-    memcpy (&rd_count,
-            payload,
-            sizeof (uint32_t));
-    rd_count = ntohl (rd_count);
-    if (rd_count > 2048)
-    {
-      /* limit to sane value */
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-    {
-      struct GNUNET_NAMESTORE_RecordData rd[rd_count];
-
-      if (GNUNET_OK !=
-          GNUNET_NAMESTORE_records_deserialize (payload_len - sizeof (uint32_t),
-                                                &payload[sizeof (uint32_t)],
-                                                rd_count,
-                                                rd))
-      {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-      }
-      if (NULL != proc)
-        proc (proc_cls, rd_count, (0 != rd_count) ? rd : NULL);
-    }
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Test if a given record is expired.
- *
- * @return #GNUNET_YES if the record is expired,
- *         #GNUNET_NO if not
- */
-int
-GNUNET_NAMESTORE_is_expired (const struct GNUNET_NAMESTORE_RecordData *rd)
-{
-  struct GNUNET_TIME_Absolute at;
-
-  if (0 != (rd->flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
-    return GNUNET_NO;
-  at.abs_value_us = rd->expiration_time;
-  return (0 == GNUNET_TIME_absolute_get_remaining (at).rel_value_us) ? GNUNET_YES : GNUNET_NO;
-}
-
-
-/**
- * Calculate the DHT query for a given @a label in a given @a zone.
- *
- * @param zone private key of the zone
- * @param label label of the record
- * @param query hash to use for the query
- */
-void
-GNUNET_NAMESTORE_query_from_private_key (const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
-                                         const char *label,
-                                         struct GNUNET_HashCode *query)
-{
-  struct GNUNET_CRYPTO_EcdsaPublicKey pub;
-
-  GNUNET_CRYPTO_ecdsa_key_get_public (zone, &pub);
-  GNUNET_NAMESTORE_query_from_public_key (&pub, label, query);
-}
-
-
-/**
- * Calculate the DHT query for a given @a label in a given @a zone.
- *
- * @param pub public key of the zone
- * @param label label of the record
- * @param query hash to use for the query
- */
-void
-GNUNET_NAMESTORE_query_from_public_key (const struct GNUNET_CRYPTO_EcdsaPublicKey *pub,
-                                        const char *label,
-                                        struct GNUNET_HashCode *query)
-{
-  struct GNUNET_CRYPTO_EcdsaPublicKey pd;
-
-  GNUNET_CRYPTO_ecdsa_public_key_derive (pub, label, "gns", &pd);
-  GNUNET_CRYPTO_hash (&pd, sizeof (pd), query);
-}
-
-
-/**
- * Convert public key to the respective absolute domain name in the
- * ".zkey" pTLD.
- * This is one of the very few calls in the entire API that is
- * NOT reentrant!
- *
- * @param pkey a public key with a point on the eliptic curve
- * @return string "X.zkey" where X is the public
- *         key in an encoding suitable for DNS labels.
- */
-const char *
-GNUNET_NAMESTORE_pkey_to_zkey (const struct GNUNET_CRYPTO_EcdsaPublicKey *pkey)
-{
-  static char ret[128];
-  char *pkeys;
-
-  pkeys = GNUNET_CRYPTO_ecdsa_public_key_to_string (pkey);
-  GNUNET_snprintf (ret,
-                   sizeof (ret),
-                   "%s.zkey",
-                   pkeys);
-  GNUNET_free (pkeys);
-  return ret;
-}
-
-
-/**
- * Convert an absolute domain name in the ".zkey" pTLD to the
- * respective public key.
- *
- * @param zkey string "X.zkey" where X is the coordinates of the public
- *         key in an encoding suitable for DNS labels.
- * @param pkey set to a public key on the eliptic curve
- * @return #GNUNET_SYSERR if @a zkey has the wrong syntax
- */
-int
-GNUNET_NAMESTORE_zkey_to_pkey (const char *zkey,
-                               struct GNUNET_CRYPTO_EcdsaPublicKey *pkey)
-{
-  char *cpy;
-  char *dot;
-  const char *x;
-
-  cpy = GNUNET_strdup (zkey);
-  x = cpy;
-  if (NULL == (dot = strchr (x, (int) '.')))
-    goto error;
-  *dot = '\0';
-  if (0 != strcasecmp (dot + 1,
-                       "zkey"))
-    goto error;
-
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_ecdsa_public_key_from_string (x,
-                                                strlen (x),
-                                                pkey))
-    goto error;
-  GNUNET_free (cpy);
-  return GNUNET_OK;
- error:
-  GNUNET_free (cpy);
-  return GNUNET_SYSERR;
-}
-
-
-/* end of namestore_common.c */