WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
-
+
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
*/
* @return the required size to serialize
*/
size_t
-GNUNET_CREDENTIAL_delegation_set_get_size (unsigned int ds_count,
- const struct GNUNET_CREDENTIAL_DelegationSet *dsr)
+GNUNET_CREDENTIAL_delegation_set_get_size(unsigned int ds_count,
+ 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++)
- {
- GNUNET_assert ((ret + dsr[i].subject_attribute_len) >= ret);
- ret += dsr[i].subject_attribute_len;
- }
+ for (i = 0; i < ds_count; i++)
+ {
+ GNUNET_assert((ret + dsr[i].subject_attribute_len) >= ret);
+ ret += dsr[i].subject_attribute_len;
+ }
return ret;
}
* @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,
- size_t dest_size,
- char *dest)
+GNUNET_CREDENTIAL_delegation_set_serialize(unsigned int d_count,
+ const struct GNUNET_CREDENTIAL_DelegationSet *dsr,
+ size_t dest_size,
+ char *dest)
{
struct DelegationRecordData rec;
unsigned int i;
size_t off;
off = 0;
- 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)
- return -1;
- GNUNET_memcpy (&dest[off],
- &rec,
- sizeof (rec));
- off += sizeof (rec);
- if (0 == dsr[i].subject_attribute_len)
- continue;
- if (off + dsr[i].subject_attribute_len > dest_size)
- return -1;
- GNUNET_memcpy (&dest[off],
- dsr[i].subject_attribute,
- dsr[i].subject_attribute_len);
- off += dsr[i].subject_attribute_len;
- }
+ 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)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ &rec,
+ sizeof(rec));
+ off += sizeof(rec);
+ if (0 == dsr[i].subject_attribute_len)
+ continue;
+ if (off + dsr[i].subject_attribute_len > dest_size)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ dsr[i].subject_attribute,
+ dsr[i].subject_attribute_len);
+ off += dsr[i].subject_attribute_len;
+ }
return off;
}
* @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)
+GNUNET_CREDENTIAL_delegation_set_deserialize(size_t len,
+ const char *src,
+ unsigned int d_count,
+ struct GNUNET_CREDENTIAL_DelegationSet *dsr)
{
struct DelegationRecordData rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
- {
- if (off + sizeof (rec) > len)
- return GNUNET_SYSERR;
- GNUNET_memcpy (&rec, &src[off], sizeof (rec));
- dsr[i].subject_key = rec.subject_key;
- 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];
- off += dsr[i].subject_attribute_len;
- }
+ for (i = 0; i < d_count; i++)
+ {
+ if (off + sizeof(rec) > len)
+ return GNUNET_SYSERR;
+ GNUNET_memcpy(&rec, &src[off], sizeof(rec));
+ dsr[i].subject_key = rec.subject_key;
+ 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];
+ off += dsr[i].subject_attribute_len;
+ }
return GNUNET_OK;
}
* @return the required size to serialize
*/
size_t
-GNUNET_CREDENTIAL_credentials_get_size (unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd)
+GNUNET_CREDENTIAL_credentials_get_size(unsigned int c_count,
+ 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++)
- {
- GNUNET_assert ((ret + cd[i].issuer_attribute_len) >= ret);
- ret += cd[i].issuer_attribute_len;
- }
+ for (i = 0; i < c_count; i++)
+ {
+ GNUNET_assert((ret + cd[i].issuer_attribute_len) >= ret);
+ ret += cd[i].issuer_attribute_len;
+ }
return ret;
}
/**
* @return the size of the data, -1 on failure
*/
ssize_t
-GNUNET_CREDENTIAL_credentials_serialize (unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd,
- size_t dest_size,
- char *dest)
+GNUNET_CREDENTIAL_credentials_serialize(unsigned int c_count,
+ const struct GNUNET_CREDENTIAL_Credential *cd,
+ size_t dest_size,
+ char *dest)
{
struct CredentialEntry c_rec;
unsigned int i;
size_t off;
off = 0;
- 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.expiration = GNUNET_htonll (cd[i].expiration.abs_value_us);
- if (off + sizeof (c_rec) > dest_size)
- return -1;
- GNUNET_memcpy (&dest[off],
- &c_rec,
- sizeof (c_rec));
- off += sizeof (c_rec);
- if (off + cd[i].issuer_attribute_len > dest_size)
- return -1;
- GNUNET_memcpy (&dest[off],
- cd[i].issuer_attribute,
- cd[i].issuer_attribute_len);
- off += cd[i].issuer_attribute_len;
- }
+ 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.expiration = GNUNET_htonll(cd[i].expiration.abs_value_us);
+ if (off + sizeof(c_rec) > dest_size)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ &c_rec,
+ sizeof(c_rec));
+ off += sizeof(c_rec);
+ if (off + cd[i].issuer_attribute_len > dest_size)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ cd[i].issuer_attribute,
+ cd[i].issuer_attribute_len);
+ off += cd[i].issuer_attribute_len;
+ }
return off;
}
* @return #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_CREDENTIAL_credentials_deserialize (size_t len,
- const char *src,
- unsigned int c_count,
- struct GNUNET_CREDENTIAL_Credential *cd)
+GNUNET_CREDENTIAL_credentials_deserialize(size_t len,
+ const char *src,
+ unsigned int c_count,
+ struct GNUNET_CREDENTIAL_Credential *cd)
{
struct CredentialEntry c_rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<c_count;i++)
- {
- if (off + sizeof (c_rec) > len)
- return GNUNET_SYSERR;
- 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);
- if (off + cd[i].issuer_attribute_len > len)
- return GNUNET_SYSERR;
- cd[i].issuer_attribute = &src[off];
- off += cd[i].issuer_attribute_len;
- }
+ for (i = 0; i < c_count; i++)
+ {
+ if (off + sizeof(c_rec) > len)
+ return GNUNET_SYSERR;
+ 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);
+ if (off + cd[i].issuer_attribute_len > len)
+ return GNUNET_SYSERR;
+ cd[i].issuer_attribute = &src[off];
+ off += cd[i].issuer_attribute_len;
+ }
return GNUNET_OK;
}
* @return the required size to serialize
*/
size_t
-GNUNET_CREDENTIAL_delegation_chain_get_size (unsigned int d_count,
- const struct GNUNET_CREDENTIAL_Delegation *dd,
- unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd)
+GNUNET_CREDENTIAL_delegation_chain_get_size(unsigned int d_count,
+ const struct GNUNET_CREDENTIAL_Delegation *dd,
+ unsigned int c_count,
+ 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++)
- {
- 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);
+ for (i = 0; i < d_count; i++)
+ {
+ 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 the size of the data, -1 on failure
*/
ssize_t
-GNUNET_CREDENTIAL_delegation_chain_serialize (unsigned int d_count,
- const struct GNUNET_CREDENTIAL_Delegation *dd,
- unsigned int c_count,
- const struct GNUNET_CREDENTIAL_Credential *cd,
- size_t dest_size,
- char *dest)
+GNUNET_CREDENTIAL_delegation_chain_serialize(unsigned int d_count,
+ const struct GNUNET_CREDENTIAL_Delegation *dd,
+ unsigned int c_count,
+ const struct GNUNET_CREDENTIAL_Credential *cd,
+ size_t dest_size,
+ char *dest)
{
struct ChainEntry rec;
unsigned int i;
size_t off;
off = 0;
- 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)
- return -1;
- GNUNET_memcpy (&dest[off],
- &rec,
- sizeof (rec));
- off += sizeof (rec);
- if (off + dd[i].issuer_attribute_len > dest_size)
- return -1;
- GNUNET_memcpy (&dest[off],
- dd[i].issuer_attribute,
- dd[i].issuer_attribute_len);
- off += dd[i].issuer_attribute_len;
- if (0 == dd[i].subject_attribute_len)
- continue;
- if (off + dd[i].subject_attribute_len > dest_size)
- return -1;
- GNUNET_memcpy (&dest[off],
- dd[i].subject_attribute,
- 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]);
+ 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)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ &rec,
+ sizeof(rec));
+ off += sizeof(rec);
+ if (off + dd[i].issuer_attribute_len > dest_size)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ dd[i].issuer_attribute,
+ dd[i].issuer_attribute_len);
+ off += dd[i].issuer_attribute_len;
+ if (0 == dd[i].subject_attribute_len)
+ continue;
+ if (off + dd[i].subject_attribute_len > dest_size)
+ return -1;
+ GNUNET_memcpy(&dest[off],
+ dd[i].subject_attribute,
+ 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 #GNUNET_OK on success, #GNUNET_SYSERR on error
*/
int
-GNUNET_CREDENTIAL_delegation_chain_deserialize (size_t len,
- const char *src,
- unsigned int d_count,
- struct GNUNET_CREDENTIAL_Delegation *dd,
- unsigned int c_count,
- struct GNUNET_CREDENTIAL_Credential *cd)
+GNUNET_CREDENTIAL_delegation_chain_deserialize(size_t len,
+ const char *src,
+ unsigned int d_count,
+ struct GNUNET_CREDENTIAL_Delegation *dd,
+ unsigned int c_count,
+ struct GNUNET_CREDENTIAL_Credential *cd)
{
struct ChainEntry rec;
unsigned int i;
size_t off;
off = 0;
- for (i=0;i<d_count;i++)
- {
- if (off + sizeof (rec) > len)
- return GNUNET_SYSERR;
- 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);
- if (off + dd[i].issuer_attribute_len > len)
- return GNUNET_SYSERR;
- dd[i].issuer_attribute = &src[off];
- off += dd[i].issuer_attribute_len;
- dd[i].subject_attribute_len = ntohl ((uint32_t) rec.subject_attribute_len);
- if (off + dd[i].subject_attribute_len > len)
- return GNUNET_SYSERR;
- dd[i].subject_attribute = &src[off];
- off += dd[i].subject_attribute_len;
- }
- return GNUNET_CREDENTIAL_credentials_deserialize (len-off,
- &src[off],
- c_count,
- cd);
+ for (i = 0; i < d_count; i++)
+ {
+ if (off + sizeof(rec) > len)
+ return GNUNET_SYSERR;
+ 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);
+ if (off + dd[i].issuer_attribute_len > len)
+ return GNUNET_SYSERR;
+ dd[i].issuer_attribute = &src[off];
+ off += dd[i].issuer_attribute_len;
+ dd[i].subject_attribute_len = ntohl((uint32_t)rec.subject_attribute_len);
+ if (off + dd[i].subject_attribute_len > len)
+ return GNUNET_SYSERR;
+ dd[i].subject_attribute = &src[off];
+ off += dd[i].subject_attribute_len;
+ }
+ return GNUNET_CREDENTIAL_credentials_deserialize(len - off,
+ &src[off],
+ c_count,
+ cd);
}
int
-GNUNET_CREDENTIAL_credential_serialize (struct GNUNET_CREDENTIAL_Credential *cred,
- char **data)
+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;
- *data = GNUNET_malloc (size);
+ size = sizeof(struct CredentialEntry) + strlen(cred->issuer_attribute) + 1;
+ *data = GNUNET_malloc(size);
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->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));
- 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))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid credential\n");
- //return NULL;
- }
+ 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));
+ 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))
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
+ "Invalid credential\n");
+ //return NULL;
+ }
return size;
}
struct GNUNET_CREDENTIAL_Credential*
-GNUNET_CREDENTIAL_credential_deserialize (const char* data,
- size_t data_size)
+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))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid credential\n");
- //return NULL;
- }
+ 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;
+ }
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;
- GNUNET_memcpy (&cred[1],
- issuer_attribute,
- ntohl (cdata->issuer_attribute_len));
+ GNUNET_memcpy(&cred[1],
+ issuer_attribute,
+ ntohl(cdata->issuer_attribute_len));
cred->signature = cdata->signature;
cred->issuer_attribute = (char*)&cred[1];
- cred->expiration.abs_value_us = GNUNET_ntohll (cdata->expiration);
+ cred->expiration.abs_value_us = GNUNET_ntohll(cdata->expiration);
return cred;
}
projects / oweals / gnunet.git / blobdiff