This file is part of GNUnet.
Copyright (C) 2009-2013, 2016 GNUnet e.V.
- 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 free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ 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.
+ Affero 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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-*/
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
+ */
/**
* @file credential/credential_serialization.c
- * @brief API to serialize and deserialize delegation chains
+ * @brief API to serialize and deserialize delegation chains
* and credentials
* @author Martin Schanzenbach
*/
/**
* Calculate how many bytes we will need to serialize
- * the given delegation chain and credential
+ * the given delegation chain
*
- * @param d_count number of delegation chain entries
- * @param dd array of #GNUNET_CREDENTIAL_Delegation
- * @param cd a #GNUNET_CREDENTIAL_Credential
+ * @param ds_count number of delegation chain entries
+ * @param dsr array of #GNUNET_CREDENTIAL_DelegationSet
* @return the required size to serialize
*/
size_t
GNUNET_CREDENTIAL_delegation_set_get_size (unsigned int ds_count,
- const struct GNUNET_CREDENTIAL_DelegationSet *dsr)
+ const struct
+ GNUNET_CREDENTIAL_DelegationSet *dsr)
{
unsigned int i;
size_t ret;
- ret = sizeof (struct DelegationRecordData) * (ds_count);
+ ret = sizeof(struct DelegationRecordData) * (ds_count);
- for (i=0; i<ds_count;i++)
+ for (i = 0; i < ds_count; i++)
{
GNUNET_assert ((ret + dsr[i].subject_attribute_len) >= ret);
ret += dsr[i].subject_attribute_len;
* Serizalize the given delegation chain entries and credential
*
* @param d_count number of delegation chain entries
- * @param dd array of #GNUNET_CREDENTIAL_Delegation
- * @param cd a #GNUNET_CREDENTIAL_Credential
+ * @param dsr array of #GNUNET_CREDENTIAL_DelegationSet
* @param dest_size size of the destination
* @param dest where to store the result
* @return the size of the data, -1 on failure
*/
ssize_t
GNUNET_CREDENTIAL_delegation_set_serialize (unsigned int d_count,
- const struct GNUNET_CREDENTIAL_DelegationSet *dsr,
+ const struct
+ GNUNET_CREDENTIAL_DelegationSet *dsr,
size_t dest_size,
char *dest)
{
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
+ for (i = 0; i < d_count; i++)
{
rec.subject_attribute_len = htonl ((uint32_t) dsr[i].subject_attribute_len);
rec.subject_key = dsr[i].subject_key;
- if (off + sizeof (rec) > dest_size)
+ if (off + sizeof(rec) > dest_size)
return -1;
GNUNET_memcpy (&dest[off],
&rec,
- sizeof (rec));
- off += sizeof (rec);
+ sizeof(rec));
+ off += sizeof(rec);
if (0 == dsr[i].subject_attribute_len)
continue;
if (off + dsr[i].subject_attribute_len > dest_size)
* @param len size of the serialized delegation chain and cred
* @param src the serialized data
* @param d_count the number of delegation chain entries
- * @param dd where to put the delegation chain entries
- * @param cd where to put the credential data
+ * @param dsr where to put the delegation chain entries
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
GNUNET_CREDENTIAL_delegation_set_deserialize (size_t len,
const char *src,
unsigned int d_count,
- struct GNUNET_CREDENTIAL_DelegationSet *dsr)
+ struct
+ GNUNET_CREDENTIAL_DelegationSet *
+ dsr)
{
struct DelegationRecordData rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
+ for (i = 0; i < d_count; i++)
{
- if (off + sizeof (rec) > len)
+ if (off + sizeof(rec) > len)
return GNUNET_SYSERR;
- GNUNET_memcpy (&rec, &src[off], sizeof (rec));
+ GNUNET_memcpy (&rec, &src[off], sizeof(rec));
dsr[i].subject_key = rec.subject_key;
- off += sizeof (rec);
+ off += sizeof(rec);
dsr[i].subject_attribute_len = ntohl ((uint32_t) rec.subject_attribute_len);
if (off + dsr[i].subject_attribute_len > len)
return GNUNET_SYSERR;
- dsr[i].subject_attribute = (char*)&src[off];
+ dsr[i].subject_attribute = (char*) &src[off];
off += dsr[i].subject_attribute_len;
}
return GNUNET_OK;
*/
size_t
GNUNET_CREDENTIAL_credentials_get_size (unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd)
+ const struct
+ GNUNET_CREDENTIAL_Credential *cd)
{
unsigned int i;
size_t ret;
- ret = sizeof (struct CredentialEntry) * (c_count);
+ ret = sizeof(struct CredentialEntry) * (c_count);
- for (i=0; i<c_count;i++)
+ for (i = 0; i < c_count; i++)
{
GNUNET_assert ((ret + cd[i].issuer_attribute_len) >= ret);
ret += cd[i].issuer_attribute_len;
*/
ssize_t
GNUNET_CREDENTIAL_credentials_serialize (unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd,
+ const struct
+ GNUNET_CREDENTIAL_Credential *cd,
size_t dest_size,
char *dest)
{
size_t off;
off = 0;
- for (i=0;i<c_count;i++)
+ for (i = 0; i < c_count; i++)
{
c_rec.issuer_attribute_len = htonl ((uint32_t) cd[i].issuer_attribute_len);
c_rec.issuer_key = cd[i].issuer_key;
c_rec.subject_key = cd[i].subject_key;
c_rec.signature = cd[i].signature;
c_rec.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_CREDENTIAL);
- c_rec.purpose.size = htonl ((sizeof (struct CredentialEntry) + cd[i].issuer_attribute_len) - sizeof (struct GNUNET_CRYPTO_EcdsaSignature));
+ c_rec.purpose.size = htonl ((sizeof(struct CredentialEntry)
+ + cd[i].issuer_attribute_len) - sizeof(struct
+ GNUNET_CRYPTO_EcdsaSignature));
c_rec.expiration = GNUNET_htonll (cd[i].expiration.abs_value_us);
- if (off + sizeof (c_rec) > dest_size)
+ if (off + sizeof(c_rec) > dest_size)
return -1;
GNUNET_memcpy (&dest[off],
&c_rec,
- sizeof (c_rec));
- off += sizeof (c_rec);
+ sizeof(c_rec));
+ off += sizeof(c_rec);
if (off + cd[i].issuer_attribute_len > dest_size)
return -1;
GNUNET_memcpy (&dest[off],
GNUNET_CREDENTIAL_credentials_deserialize (size_t len,
const char *src,
unsigned int c_count,
- struct GNUNET_CREDENTIAL_Credential *cd)
+ struct GNUNET_CREDENTIAL_Credential *
+ cd)
{
struct CredentialEntry c_rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<c_count;i++)
+ for (i = 0; i < c_count; i++)
{
- if (off + sizeof (c_rec) > len)
+ if (off + sizeof(c_rec) > len)
return GNUNET_SYSERR;
- GNUNET_memcpy (&c_rec, &src[off], sizeof (c_rec));
+ GNUNET_memcpy (&c_rec, &src[off], sizeof(c_rec));
cd[i].issuer_attribute_len = ntohl ((uint32_t) c_rec.issuer_attribute_len);
cd[i].issuer_key = c_rec.issuer_key;
cd[i].subject_key = c_rec.subject_key;
cd[i].signature = c_rec.signature;
- cd[i].expiration.abs_value_us = GNUNET_ntohll(c_rec.expiration);
- off += sizeof (c_rec);
+ cd[i].expiration.abs_value_us = GNUNET_ntohll (c_rec.expiration);
+ off += sizeof(c_rec);
if (off + cd[i].issuer_attribute_len > len)
return GNUNET_SYSERR;
cd[i].issuer_attribute = &src[off];
*/
size_t
GNUNET_CREDENTIAL_delegation_chain_get_size (unsigned int d_count,
- const struct GNUNET_CREDENTIAL_Delegation *dd,
+ const struct
+ GNUNET_CREDENTIAL_Delegation *dd,
unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd)
+ const struct
+ GNUNET_CREDENTIAL_Credential *cd)
{
unsigned int i;
size_t ret;
- ret = sizeof (struct ChainEntry) * (d_count);
+ ret = sizeof(struct ChainEntry) * (d_count);
- for (i=0; i<d_count;i++)
+ for (i = 0; i < d_count; i++)
{
- GNUNET_assert ((ret +
- dd[i].issuer_attribute_len +
- dd[i].subject_attribute_len) >= ret);
+ GNUNET_assert ((ret
+ + dd[i].issuer_attribute_len
+ + dd[i].subject_attribute_len) >= ret);
ret += dd[i].issuer_attribute_len + dd[i].subject_attribute_len;
}
- return ret+GNUNET_CREDENTIAL_credentials_get_size(c_count, cd);
- return ret;
+ return ret + GNUNET_CREDENTIAL_credentials_get_size (c_count, cd);
}
/**
*/
ssize_t
GNUNET_CREDENTIAL_delegation_chain_serialize (unsigned int d_count,
- const struct GNUNET_CREDENTIAL_Delegation *dd,
+ const struct
+ GNUNET_CREDENTIAL_Delegation *dd,
unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd,
+ const struct
+ GNUNET_CREDENTIAL_Credential *cd,
size_t dest_size,
char *dest)
{
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
+ for (i = 0; i < d_count; i++)
{
rec.issuer_attribute_len = htonl ((uint32_t) dd[i].issuer_attribute_len);
rec.subject_attribute_len = htonl ((uint32_t) dd[i].subject_attribute_len);
rec.issuer_key = dd[i].issuer_key;
rec.subject_key = dd[i].subject_key;
- if (off + sizeof (rec) > dest_size)
+ if (off + sizeof(rec) > dest_size)
return -1;
GNUNET_memcpy (&dest[off],
&rec,
- sizeof (rec));
- off += sizeof (rec);
+ sizeof(rec));
+ off += sizeof(rec);
if (off + dd[i].issuer_attribute_len > dest_size)
return -1;
GNUNET_memcpy (&dest[off],
dd[i].subject_attribute_len);
off += dd[i].subject_attribute_len;
}
- return off+GNUNET_CREDENTIAL_credentials_serialize (c_count,
- cd,
- dest_size-off,
- &dest[off]);
+ return off + GNUNET_CREDENTIAL_credentials_serialize (c_count,
+ cd,
+ dest_size - off,
+ &dest[off]);
}
GNUNET_CREDENTIAL_delegation_chain_deserialize (size_t len,
const char *src,
unsigned int d_count,
- struct GNUNET_CREDENTIAL_Delegation *dd,
+ struct
+ GNUNET_CREDENTIAL_Delegation *dd,
unsigned int c_count,
- struct GNUNET_CREDENTIAL_Credential *cd)
+ struct
+ GNUNET_CREDENTIAL_Credential *cd)
{
struct ChainEntry rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
+ for (i = 0; i < d_count; i++)
{
- if (off + sizeof (rec) > len)
+ if (off + sizeof(rec) > len)
return GNUNET_SYSERR;
- GNUNET_memcpy (&rec, &src[off], sizeof (rec));
+ GNUNET_memcpy (&rec, &src[off], sizeof(rec));
dd[i].issuer_attribute_len = ntohl ((uint32_t) rec.issuer_attribute_len);
dd[i].issuer_key = rec.issuer_key;
dd[i].subject_key = rec.subject_key;
- off += sizeof (rec);
+ off += sizeof(rec);
if (off + dd[i].issuer_attribute_len > len)
return GNUNET_SYSERR;
dd[i].issuer_attribute = &src[off];
dd[i].subject_attribute = &src[off];
off += dd[i].subject_attribute_len;
}
- return GNUNET_CREDENTIAL_credentials_deserialize (len-off,
+ return GNUNET_CREDENTIAL_credentials_deserialize (len - off,
&src[off],
c_count,
cd);
}
int
-GNUNET_CREDENTIAL_credential_serialize (struct GNUNET_CREDENTIAL_Credential *cred,
+GNUNET_CREDENTIAL_credential_serialize (struct
+ GNUNET_CREDENTIAL_Credential *cred,
char **data)
{
size_t size;
struct CredentialEntry *cdata;
- size = sizeof (struct CredentialEntry) + strlen (cred->issuer_attribute) + 1;
+ size = sizeof(struct CredentialEntry) + strlen (cred->issuer_attribute) + 1;
*data = GNUNET_malloc (size);
- cdata = (struct CredentialEntry*)*data;
+ cdata = (struct CredentialEntry*) *data;
cdata->subject_key = cred->subject_key;
cdata->issuer_key = cred->issuer_key;
cdata->expiration = GNUNET_htonll (cred->expiration.abs_value_us);
cdata->signature = cred->signature;
cdata->issuer_attribute_len = htonl (strlen (cred->issuer_attribute) + 1);
cdata->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_CREDENTIAL);
- cdata->purpose.size = htonl (size - sizeof (struct GNUNET_CRYPTO_EcdsaSignature));
+ cdata->purpose.size = htonl (size - sizeof(struct
+ GNUNET_CRYPTO_EcdsaSignature));
GNUNET_memcpy (&cdata[1],
cred->issuer_attribute,
strlen (cred->issuer_attribute));
- if(GNUNET_OK != GNUNET_CRYPTO_ecdsa_verify(GNUNET_SIGNATURE_PURPOSE_CREDENTIAL,
- &cdata->purpose,
- &cdata->signature,
- &cdata->issuer_key))
+ if (GNUNET_OK != GNUNET_CRYPTO_ecdsa_verify (
+ GNUNET_SIGNATURE_PURPOSE_CREDENTIAL,
+ &cdata->purpose,
+ &cdata->signature,
+ &cdata->issuer_key))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Invalid credential\n");
- //return NULL;
+ // return NULL;
}
return size;
}
struct GNUNET_CREDENTIAL_Credential*
-GNUNET_CREDENTIAL_credential_deserialize (const char* data,
+GNUNET_CREDENTIAL_credential_deserialize (const char*data,
size_t data_size)
{
struct GNUNET_CREDENTIAL_Credential *cred;
struct CredentialEntry *cdata;
char *issuer_attribute;
- if (data_size < sizeof (struct CredentialEntry))
+ if (data_size < sizeof(struct CredentialEntry))
return NULL;
- cdata = (struct CredentialEntry*)data;
- if(GNUNET_OK != GNUNET_CRYPTO_ecdsa_verify(GNUNET_SIGNATURE_PURPOSE_CREDENTIAL,
- &cdata->purpose,
- &cdata->signature,
- &cdata->issuer_key))
+ cdata = (struct CredentialEntry*) data;
+ if (GNUNET_OK != GNUNET_CRYPTO_ecdsa_verify (
+ GNUNET_SIGNATURE_PURPOSE_CREDENTIAL,
+ &cdata->purpose,
+ &cdata->signature,
+ &cdata->issuer_key))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Invalid credential\n");
- //return NULL;
+ // return NULL;
}
- issuer_attribute = (char*)&cdata[1];
+ issuer_attribute = (char*) &cdata[1];
- cred = GNUNET_malloc (sizeof (struct GNUNET_CREDENTIAL_Credential) + ntohl(cdata->issuer_attribute_len));
+ cred = GNUNET_malloc (sizeof(struct GNUNET_CREDENTIAL_Credential) + ntohl (
+ cdata->issuer_attribute_len));
cred->issuer_key = cdata->issuer_key;
cred->subject_key = cdata->subject_key;
issuer_attribute,
ntohl (cdata->issuer_attribute_len));
cred->signature = cdata->signature;
- cred->issuer_attribute = (char*)&cred[1];
+ cred->issuer_attribute = (char*) &cred[1];
cred->expiration.abs_value_us = GNUNET_ntohll (cdata->expiration);
return cred;
}
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