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pkcs11_main.c
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pkcs11_main.c
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#include "gpkcs11_locl.h"
extern gpkcs11_soft_token_t gpkcs11_soft_token;
static void
snprintf_fill(char *str, size_t size, char fillchar, const char *fmt, ...)
{
int len;
va_list ap;
len = vsnprintf(str, size, fmt, ap);
va_end(ap);
if (len < 0 || len > size)
return;
while (len < size)
str[len++] = fillchar;
}
static CK_RV
object_handle_to_object(CK_OBJECT_HANDLE handle, struct gpkcs11_st_object **object)
{
int i = HANDLE_OBJECT_ID(handle);
*object = NULL;
if (i >= gpkcs11_soft_token.object.num_objs)
return CKR_ARGUMENTS_BAD;
if (gpkcs11_soft_token.object.objs[i] == NULL)
return CKR_ARGUMENTS_BAD;
if (gpkcs11_soft_token.object.objs[i]->object_handle != handle)
return CKR_ARGUMENTS_BAD;
*object = gpkcs11_soft_token.object.objs[i];
return CKR_OK;
}
static int
attributes_match(const struct gpkcs11_st_object *obj, const CK_ATTRIBUTE *attributes, CK_ULONG num_attributes)
{
CK_ULONG i;
int j;
gpkcs11_log("attributes_match: %ld\n", (unsigned long)OBJECT_ID(obj));
for (i = 0; i < num_attributes; i++) {
int match = 0;
for (j = 0; j < obj->num_attributes; j++) {
if (attributes[i].type == obj->attrs[j].attribute.type &&
attributes[i].ulValueLen == obj->attrs[j].attribute.ulValueLen &&
memcmp(attributes[i].pValue, obj->attrs[j].attribute.pValue,
attributes[i].ulValueLen) == 0) {
match = 1;
break;
}
}
if (match == 0) {
gpkcs11_log("type %d attribute have no match\n", attributes[i].type);
return 0;
}
}
gpkcs11_log("attribute matches\n");
return 1;
}
static void
print_attributes(const CK_ATTRIBUTE *attributes, CK_ULONG num_attributes)
{
CK_ULONG i;
gpkcs11_log("find objects: attrs: %lu\n", (unsigned long)num_attributes);
for (i = 0; i < num_attributes; i++) {
gpkcs11_log(" type: ");
switch (attributes[i].type) {
case CKA_TOKEN: {
CK_BBOOL *ck_true;
if (attributes[i].ulValueLen != sizeof(CK_BBOOL)) {
gpkcs11_app_error("token attribute wrong length\n");
break;
}
ck_true = attributes[i].pValue;
gpkcs11_log("token: %s", *ck_true ? "TRUE" : "FALSE");
break;
}
case CKA_CLASS: {
CK_OBJECT_CLASS *class;
if (attributes[i].ulValueLen != sizeof(CK_ULONG)) {
gpkcs11_app_error("class attribute wrong length\n");
break;
}
class = attributes[i].pValue;
gpkcs11_log("class ");
switch (*class) {
case CKO_CERTIFICATE:
gpkcs11_log("certificate");
break;
case CKO_PUBLIC_KEY:
gpkcs11_log("public key");
break;
case CKO_PRIVATE_KEY:
gpkcs11_log("private key");
break;
case CKO_SECRET_KEY:
gpkcs11_log("secret key");
break;
case CKO_DOMAIN_PARAMETERS:
gpkcs11_log("domain parameters");
break;
default:
gpkcs11_log("[class %lx]", (long unsigned)*class);
break;
}
break;
}
case CKA_PRIVATE:
gpkcs11_log("private");
break;
case CKA_LABEL:
gpkcs11_log("label");
break;
case CKA_APPLICATION:
gpkcs11_log("application");
break;
case CKA_VALUE:
gpkcs11_log("value");
break;
case CKA_ID:
gpkcs11_log("id");
break;
default:
gpkcs11_log("[unknown 0x%08lx]", (unsigned long)attributes[i].type);
break;
}
gpkcs11_log("\n");
}
}
static void
find_object_final(struct gpkcs11_session_state *state)
{
if (state->find.attributes) {
CK_ULONG i;
for (i = 0; i < state->find.num_attributes; i++) {
if (state->find.attributes[i].pValue)
free(state->find.attributes[i].pValue);
}
free(state->find.attributes);
state->find.attributes = NULL;
state->find.num_attributes = 0;
state->find.next_object = -1;
}
}
void
reset_crypto_state(struct gpkcs11_session_state *state)
{
state->encrypt_object = -1;
if (state->encrypt_mechanism)
free(state->encrypt_mechanism);
state->encrypt_mechanism = NULL_PTR;
state->decrypt_object = -1;
if (state->decrypt_mechanism)
free(state->decrypt_mechanism);
state->decrypt_mechanism = NULL_PTR;
state->sign_object = -1;
if (state->sign_mechanism)
free(state->sign_mechanism);
state->sign_mechanism = NULL_PTR;
state->verify_object = -1;
if (state->verify_mechanism)
free(state->verify_mechanism);
state->verify_mechanism = NULL_PTR;
state->digest_object = -1;
}
static void
close_session(struct gpkcs11_session_state *state)
{
if (state->find.attributes) {
gpkcs11_app_error("application didn't do C_FindObjectsFinal\n");
find_object_final(state);
}
state->session_handle = CK_INVALID_HANDLE;
gpkcs11_soft_token.application = NULL_PTR;
gpkcs11_soft_token.notify = NULL_PTR;
reset_crypto_state(state);
}
static const char *
has_session(void)
{
return gpkcs11_soft_token.open_sessions > 0 ? "yes" : "no";
}
CK_RV
gpkcs11_init_token(const char *version, const char *description, gpkcs11_soft_token_t *token)
{
int i, ret;
OpenSSL_add_all_algorithms();
ERR_load_crypto_strings();
srandom(getpid() ^ time(NULL));
for (i = 0; i < MAX_NUM_SESSION; i++) {
token->state[i].session_handle = CK_INVALID_HANDLE;
token->state[i].find.attributes = NULL;
token->state[i].find.num_attributes = 0;
token->state[i].find.next_object = -1;
reset_crypto_state(&token->state[i]);
}
/* Don't pretend being a HW slot, otherwise NSS will cache the objects
and fails to store all attributes necessary (Serial Number) */
gpkcs11_soft_token.flags.hardware_slot = 0;
gpkcs11_soft_token.flags.app_error_fatal = 0;
gpkcs11_soft_token.flags.login_done = 0;
gpkcs11_soft_token.object.objs = NULL;
gpkcs11_soft_token.object.num_objs = 0;
gpkcs11_soft_token.logfile = NULL;
#if 1
gpkcs11_soft_token.logfile = fopen("/tmp/log-pkcs11.txt", "a");
#endif
gpkcs11_soft_token.desc.text = description;
ret = sscanf(version, "%c.%c",
&gpkcs11_soft_token.desc.libraryVersion.major, &gpkcs11_soft_token.desc.libraryVersion.minor);
if (ret != 2)
return CKR_GENERAL_ERROR;
return CKR_OK;
}
CK_RV
C_Finalize(CK_VOID_PTR args)
{
int i;
gpkcs11_log("Finalize\n");
for (i = 0; i < MAX_NUM_SESSION; i++) {
if (gpkcs11_soft_token.state[i].session_handle != CK_INVALID_HANDLE) {
gpkcs11_app_error("application finalized without " "closing session\n");
close_session(&gpkcs11_soft_token.state[i]);
}
}
return CKR_OK;
}
CK_RV
C_GetInfo(CK_INFO_PTR args)
{
gpkcs11_log("GetInfo\n");
memset(args, 17, sizeof(*args));
args->cryptokiVersion.major = 2;
args->cryptokiVersion.minor = 10;
snprintf_fill((char *)args->manufacturerID, sizeof(args->manufacturerID), ' ', MANUFACTURER_ID);
snprintf_fill((char *)args->libraryDescription, sizeof(args->libraryDescription), ' ', gpkcs11_soft_token.desc.text);
args->libraryVersion.major = gpkcs11_soft_token.desc.libraryVersion.major;
args->libraryVersion.minor = gpkcs11_soft_token.desc.libraryVersion.minor;
return CKR_OK;
}
extern CK_FUNCTION_LIST funcs;
CK_RV
C_GetFunctionList(CK_FUNCTION_LIST_PTR_PTR ppFunctionList)
{
*ppFunctionList = &funcs;
return CKR_OK;
}
CK_RV
C_GetSlotList(CK_BBOOL tokenPresent, CK_SLOT_ID_PTR pSlotList, CK_ULONG_PTR pulCount)
{
gpkcs11_log("GetSlotList: %s\n", tokenPresent ? "tokenPresent" : "token not Present");
if (pSlotList)
pSlotList[0] = 1;
*pulCount = 1;
return CKR_OK;
}
CK_RV
C_GetSlotInfo(CK_SLOT_ID slotID, CK_SLOT_INFO_PTR pInfo)
{
gpkcs11_log("GetSlotInfo: slot: %d : %s\n", (int)slotID, has_session());
memset(pInfo, 18, sizeof(*pInfo));
if (slotID != 1)
return CKR_ARGUMENTS_BAD;
snprintf_fill((char *)pInfo->slotDescription, sizeof(pInfo->slotDescription), ' ', gpkcs11_soft_token.desc.text);
snprintf_fill((char *)pInfo->manufacturerID, sizeof(pInfo->manufacturerID), ' ', MANUFACTURER_ID);
pInfo->flags = CKF_TOKEN_PRESENT;
if (gpkcs11_soft_token.flags.hardware_slot)
pInfo->flags |= CKF_HW_SLOT;
pInfo->hardwareVersion.major = 1;
pInfo->hardwareVersion.minor = 0;
pInfo->firmwareVersion.major = 1;
pInfo->firmwareVersion.minor = 0;
return CKR_OK;
}
CK_RV
C_GetTokenInfo(CK_SLOT_ID slotID, CK_TOKEN_INFO_PTR pInfo)
{
gpkcs11_log("GetTokenInfo: %s\n", has_session());
memset(pInfo, 19, sizeof(*pInfo));
snprintf_fill((char *)pInfo->label, sizeof(pInfo->label), ' ', gpkcs11_soft_token.desc.text);
snprintf_fill((char *)pInfo->manufacturerID, sizeof(pInfo->manufacturerID), ' ', MANUFACTURER_ID);
snprintf_fill((char *)pInfo->model, sizeof(pInfo->model), ' ', gpkcs11_soft_token.desc.text);
snprintf_fill((char *)pInfo->serialNumber, sizeof(pInfo->serialNumber), ' ', "3942");
pInfo->flags = CKF_TOKEN_INITIALIZED | CKF_USER_PIN_INITIALIZED;
if (gpkcs11_soft_token.flags.login_done == 0)
pInfo->flags |= CKF_LOGIN_REQUIRED;
/* CFK_RNG |
CKF_RESTORE_KEY_NOT_NEEDED |
*/
pInfo->ulMaxSessionCount = MAX_NUM_SESSION;
pInfo->ulSessionCount = gpkcs11_soft_token.open_sessions;
pInfo->ulMaxRwSessionCount = MAX_NUM_SESSION;
pInfo->ulRwSessionCount = gpkcs11_soft_token.open_sessions;
pInfo->ulMaxPinLen = 1024;
pInfo->ulMinPinLen = 0;
pInfo->ulTotalPublicMemory = 4096;
pInfo->ulFreePublicMemory = 4096;
pInfo->ulTotalPrivateMemory = 4096;
pInfo->ulFreePrivateMemory = 4096;
pInfo->hardwareVersion.major = 1;
pInfo->hardwareVersion.minor = 0;
pInfo->firmwareVersion.major = 1;
pInfo->firmwareVersion.minor = 0;
return CKR_OK;
}
CK_RV
C_GetMechanismList(CK_SLOT_ID slotID, CK_MECHANISM_TYPE_PTR pMechanismList, CK_ULONG_PTR pulCount)
{
gpkcs11_log("GetMechanismList\n");
*pulCount = 2;
if (pMechanismList == NULL_PTR)
return CKR_OK;
pMechanismList[0] = CKM_RSA_X_509;
pMechanismList[1] = CKM_RSA_PKCS;
return CKR_OK;
}
CK_RV
C_GetMechanismInfo(CK_SLOT_ID slotID, CK_MECHANISM_TYPE type, CK_MECHANISM_INFO_PTR pInfo)
{
gpkcs11_log("GetMechanismInfo: slot %d type: %d\n", (int)slotID, (int)type);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_InitToken(CK_SLOT_ID slotID, CK_UTF8CHAR_PTR pPin, CK_ULONG ulPinLen, CK_UTF8CHAR_PTR pLabel)
{
gpkcs11_log("InitToken: slot %d\n", (int)slotID);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_OpenSession(CK_SLOT_ID slotID,
CK_FLAGS flags, CK_VOID_PTR pApplication, CK_NOTIFY Notify, CK_SESSION_HANDLE_PTR phSession)
{
int i;
gpkcs11_log("OpenSession: slot: %d\n", (int)slotID);
if (gpkcs11_soft_token.open_sessions == MAX_NUM_SESSION)
return CKR_SESSION_COUNT;
gpkcs11_soft_token.application = pApplication;
gpkcs11_soft_token.notify = Notify;
for (i = 0; i < MAX_NUM_SESSION; i++)
if (gpkcs11_soft_token.state[i].session_handle == CK_INVALID_HANDLE)
break;
if (i == MAX_NUM_SESSION)
abort();
gpkcs11_soft_token.open_sessions++;
gpkcs11_soft_token.state[i].session_handle = (CK_SESSION_HANDLE) (random() & 0xfffff);
*phSession = gpkcs11_soft_token.state[i].session_handle;
return CKR_OK;
}
CK_RV
C_CloseSession(CK_SESSION_HANDLE hSession)
{
struct gpkcs11_session_state *state;
gpkcs11_log("CloseSession\n");
if (gpkcs11_verify_session_handle(hSession, &state) != CKR_OK)
gpkcs11_app_error("closed session not open");
else
close_session(state);
return CKR_OK;
}
CK_RV
C_CloseAllSessions(CK_SLOT_ID slotID)
{
int i;
gpkcs11_log("CloseAllSessions\n");
for (i = 0; i < MAX_NUM_SESSION; i++)
if (gpkcs11_soft_token.state[i].session_handle != CK_INVALID_HANDLE)
close_session(&gpkcs11_soft_token.state[i]);
return CKR_OK;
}
CK_RV
C_GetSessionInfo(CK_SESSION_HANDLE hSession, CK_SESSION_INFO_PTR pInfo)
{
gpkcs11_log("GetSessionInfo\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
memset(pInfo, 20, sizeof(*pInfo));
pInfo->slotID = 1;
if (gpkcs11_soft_token.flags.login_done)
pInfo->state = CKS_RO_USER_FUNCTIONS;
else
pInfo->state = CKS_RO_PUBLIC_SESSION;
pInfo->flags = CKF_SERIAL_SESSION;
pInfo->ulDeviceError = 0;
return CKR_OK;
}
CK_RV
C_Logout(CK_SESSION_HANDLE hSession)
{
gpkcs11_log("Logout\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_GetObjectSize(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hObject, CK_ULONG_PTR pulSize)
{
gpkcs11_log("GetObjectSize\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_GetAttributeValue(CK_SESSION_HANDLE hSession, CK_OBJECT_HANDLE hObject, CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
{
struct gpkcs11_session_state *state;
struct gpkcs11_st_object *obj;
CK_ULONG i;
CK_RV ret;
int j;
gpkcs11_log("GetAttributeValue: %lx\n", (unsigned long)HANDLE_OBJECT_ID(hObject));
VERIFY_SESSION_HANDLE(hSession, &state);
if ((ret = object_handle_to_object(hObject, &obj)) != CKR_OK) {
gpkcs11_log("object not found: %lx\n", (unsigned long)HANDLE_OBJECT_ID(hObject));
return ret;
}
for (i = 0; i < ulCount; i++) {
gpkcs11_log(" getting 0x%08lx\n", (unsigned long)pTemplate[i].type);
for (j = 0; j < obj->num_attributes; j++) {
if (obj->attrs[j].secret) {
pTemplate[i].ulValueLen = (CK_ULONG) - 1;
break;
}
if (pTemplate[i].type == obj->attrs[j].attribute.type) {
if (pTemplate[i].pValue != NULL_PTR && obj->attrs[j].secret == 0) {
if (pTemplate[i].ulValueLen >= obj->attrs[j].attribute.ulValueLen)
memcpy(pTemplate[i].pValue, obj->attrs[j].attribute.pValue,
obj->attrs[j].attribute.ulValueLen);
}
pTemplate[i].ulValueLen = obj->attrs[j].attribute.ulValueLen;
break;
}
}
if (j == obj->num_attributes) {
gpkcs11_log("key type: 0x%08lx not found\n", (unsigned long)pTemplate[i].type);
pTemplate[i].ulValueLen = (CK_ULONG) - 1;
}
}
return CKR_OK;
}
CK_RV
C_FindObjectsInit(CK_SESSION_HANDLE hSession, CK_ATTRIBUTE_PTR pTemplate, CK_ULONG ulCount)
{
struct gpkcs11_session_state *state;
gpkcs11_log("FindObjectsInit\n");
VERIFY_SESSION_HANDLE(hSession, &state);
if (state->find.next_object != -1) {
gpkcs11_app_error("application didn't do C_FindObjectsFinal\n");
find_object_final(state);
}
if (ulCount) {
CK_ULONG i;
print_attributes(pTemplate, ulCount);
state->find.attributes = calloc(1, ulCount * sizeof(state->find.attributes[0]));
if (state->find.attributes == NULL)
return CKR_DEVICE_MEMORY;
for (i = 0; i < ulCount; i++) {
state->find.attributes[i].pValue = malloc(pTemplate[i].ulValueLen);
if (state->find.attributes[i].pValue == NULL) {
find_object_final(state);
return CKR_DEVICE_MEMORY;
}
memcpy(state->find.attributes[i].pValue, pTemplate[i].pValue, pTemplate[i].ulValueLen);
state->find.attributes[i].type = pTemplate[i].type;
state->find.attributes[i].ulValueLen = pTemplate[i].ulValueLen;
}
state->find.num_attributes = ulCount;
state->find.next_object = 0;
} else {
gpkcs11_log("find all objects\n");
state->find.attributes = NULL;
state->find.num_attributes = 0;
state->find.next_object = 0;
}
return CKR_OK;
}
CK_RV
C_FindObjects(CK_SESSION_HANDLE hSession,
CK_OBJECT_HANDLE_PTR phObject, CK_ULONG ulMaxObjectCount, CK_ULONG_PTR pulObjectCount)
{
struct gpkcs11_session_state *state;
int i;
gpkcs11_log("FindObjects\n");
VERIFY_SESSION_HANDLE(hSession, &state);
if (state->find.next_object == -1) {
gpkcs11_app_error("application didn't do C_FindObjectsInit\n");
return CKR_ARGUMENTS_BAD;
}
if (ulMaxObjectCount == 0) {
gpkcs11_app_error("application asked for 0 objects\n");
return CKR_ARGUMENTS_BAD;
}
*pulObjectCount = 0;
for (i = state->find.next_object; i < gpkcs11_soft_token.object.num_objs; i++) {
gpkcs11_log("FindObjects: %d\n", i);
state->find.next_object = i + 1;
if (attributes_match(gpkcs11_soft_token.object.objs[i], state->find.attributes, state->find.num_attributes)) {
*phObject++ = gpkcs11_soft_token.object.objs[i]->object_handle;
ulMaxObjectCount--;
(*pulObjectCount)++;
if (ulMaxObjectCount == 0)
break;
}
}
return CKR_OK;
}
CK_RV
C_FindObjectsFinal(CK_SESSION_HANDLE hSession)
{
struct gpkcs11_session_state *state;
gpkcs11_log("FindObjectsFinal\n");
VERIFY_SESSION_HANDLE(hSession, &state);
find_object_final(state);
return CKR_OK;
}
static CK_RV
commonInit(CK_ATTRIBUTE *attr_match, int attr_match_len,
const CK_MECHANISM_TYPE *mechs, int mechs_len,
const CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey, struct gpkcs11_st_object **o)
{
CK_RV ret;
int i;
*o = NULL;
if ((ret = object_handle_to_object(hKey, o)) != CKR_OK)
return ret;
ret = attributes_match(*o, attr_match, attr_match_len);
if (!ret) {
gpkcs11_app_error("called commonInit on key that doesn't " "support required attr");
return CKR_ARGUMENTS_BAD;
}
for (i = 0; i < mechs_len; i++)
if (mechs[i] == pMechanism->mechanism)
break;
if (i == mechs_len) {
gpkcs11_app_error("called mech (%08lx) not supported\n", pMechanism->mechanism);
return CKR_ARGUMENTS_BAD;
}
return CKR_OK;
}
static CK_RV
dup_mechanism(CK_MECHANISM_PTR *dup, const CK_MECHANISM_PTR pMechanism)
{
CK_MECHANISM_PTR p;
p = malloc(sizeof(*p));
if (p == NULL)
return CKR_DEVICE_MEMORY;
if (*dup)
free(*dup);
*dup = p;
memcpy(p, pMechanism, sizeof(*p));
return CKR_OK;
}
CK_RV
C_EncryptInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
{
struct gpkcs11_session_state *state;
CK_MECHANISM_TYPE mechs[] = { CKM_RSA_PKCS, CKM_RSA_X_509 };
CK_BBOOL bool_true = CK_TRUE;
CK_ATTRIBUTE attr[] = {
{ CKA_ENCRYPT, &bool_true, sizeof(bool_true) }
};
struct gpkcs11_st_object *o;
CK_RV ret;
gpkcs11_log("EncryptInit\n");
VERIFY_SESSION_HANDLE(hSession, &state);
ret = commonInit(attr, sizeof(attr) / sizeof(attr[0]),
mechs, sizeof(mechs) / sizeof(mechs[0]), pMechanism, hKey, &o);
if (ret)
return ret;
ret = dup_mechanism(&state->encrypt_mechanism, pMechanism);
if (ret == CKR_OK)
state->encrypt_object = OBJECT_ID(o);
return ret;
}
CK_RV
C_Encrypt(CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pData, CK_ULONG ulDataLen, CK_BYTE_PTR pEncryptedData, CK_ULONG_PTR pulEncryptedDataLen)
{
struct gpkcs11_session_state *state;
struct gpkcs11_st_object *o;
void *buffer = NULL;
CK_RV ret;
RSA *rsa;
int padding, len, buffer_len, padding_len;
gpkcs11_log("Encrypt\n");
VERIFY_SESSION_HANDLE(hSession, &state);
if (state->encrypt_object == -1)
return CKR_ARGUMENTS_BAD;
o = gpkcs11_soft_token.object.objs[state->encrypt_object];
if (o->u.public_key == NULL) {
gpkcs11_log("public key NULL\n");
return CKR_ARGUMENTS_BAD;
}
rsa = o->u.public_key->pkey.rsa;
if (rsa == NULL)
return CKR_ARGUMENTS_BAD;
RSA_blinding_off(rsa); /* XXX RAND is broken while running in mozilla ? */
buffer_len = RSA_size(rsa);
buffer = malloc(buffer_len);
if (buffer == NULL) {
ret = CKR_DEVICE_MEMORY;
goto out;
}
ret = CKR_OK;
switch (state->encrypt_mechanism->mechanism) {
case CKM_RSA_PKCS:
padding = RSA_PKCS1_PADDING;
padding_len = RSA_PKCS1_PADDING_SIZE;
break;
case CKM_RSA_X_509:
padding = RSA_NO_PADDING;
padding_len = 0;
break;
default:
ret = CKR_FUNCTION_NOT_SUPPORTED;
goto out;
}
if (buffer_len + padding_len < ulDataLen) {
ret = CKR_ARGUMENTS_BAD;
goto out;
}
if (pulEncryptedDataLen == NULL) {
gpkcs11_log("pulEncryptedDataLen NULL\n");
ret = CKR_ARGUMENTS_BAD;
goto out;
}
if (pData == NULL_PTR) {
gpkcs11_log("data NULL\n");
ret = CKR_ARGUMENTS_BAD;
goto out;
}
len = RSA_public_encrypt(ulDataLen, pData, buffer, rsa, padding);
if (len <= 0) {
ret = CKR_DEVICE_ERROR;
goto out;
}
if (len > buffer_len)
abort();
if (pEncryptedData != NULL_PTR)
memcpy(pEncryptedData, buffer, len);
*pulEncryptedDataLen = len;
out:
if (buffer) {
memset(buffer, 0, buffer_len);
free(buffer);
}
return ret;
}
CK_RV
C_EncryptUpdate(CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pPart, CK_ULONG ulPartLen, CK_BYTE_PTR pEncryptedPart, CK_ULONG_PTR pulEncryptedPartLen)
{
gpkcs11_log("EncryptUpdate\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_EncryptFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pLastEncryptedPart, CK_ULONG_PTR pulLastEncryptedPartLen)
{
gpkcs11_log("EncryptFinal\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
/* C_DecryptInit initializes a decryption operation. */
CK_RV
C_DecryptInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
{
struct gpkcs11_session_state *state;
CK_MECHANISM_TYPE mechs[] = { CKM_RSA_PKCS, CKM_RSA_X_509 };
CK_BBOOL bool_true = CK_TRUE;
CK_ATTRIBUTE attr[] = {
{ CKA_DECRYPT, &bool_true, sizeof(bool_true) }
};
struct gpkcs11_st_object *o;
CK_RV ret;
gpkcs11_log("DecryptInit\n");
VERIFY_SESSION_HANDLE(hSession, &state);
ret = commonInit(attr, sizeof(attr) / sizeof(attr[0]),
mechs, sizeof(mechs) / sizeof(mechs[0]), pMechanism, hKey, &o);
if (ret)
return ret;
ret = dup_mechanism(&state->decrypt_mechanism, pMechanism);
if (ret == CKR_OK)
state->decrypt_object = OBJECT_ID(o);
return CKR_OK;
}
CK_RV
C_Decrypt(CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pEncryptedData, CK_ULONG ulEncryptedDataLen, CK_BYTE_PTR pData, CK_ULONG_PTR pulDataLen)
{
struct gpkcs11_session_state *state;
struct gpkcs11_st_object *o;
void *buffer = NULL;
CK_RV ret;
RSA *rsa;
int padding, len, buffer_len, padding_len;
gpkcs11_log("Decrypt\n");
VERIFY_SESSION_HANDLE(hSession, &state);
if (state->decrypt_object == -1)
return CKR_ARGUMENTS_BAD;
o = gpkcs11_soft_token.object.objs[state->decrypt_object];
if (o->u.private_key.key == NULL) {
gpkcs11_log("private key NULL\n");
return CKR_ARGUMENTS_BAD;
}
rsa = o->u.private_key.key->pkey.rsa;
if (rsa == NULL)
return CKR_ARGUMENTS_BAD;
RSA_blinding_off(rsa); /* XXX RAND is broken while running in mozilla ? */
buffer_len = RSA_size(rsa);
buffer = malloc(buffer_len);
if (buffer == NULL) {
ret = CKR_DEVICE_MEMORY;
goto out;
}
ret = CKR_OK;
switch (state->decrypt_mechanism->mechanism) {
case CKM_RSA_PKCS:
padding = RSA_PKCS1_PADDING;
padding_len = RSA_PKCS1_PADDING_SIZE;
break;
case CKM_RSA_X_509:
padding = RSA_NO_PADDING;
padding_len = 0;
break;
default:
ret = CKR_FUNCTION_NOT_SUPPORTED;
goto out;
}
if (buffer_len + padding_len < ulEncryptedDataLen) {
ret = CKR_ARGUMENTS_BAD;
goto out;
}
if (pulDataLen == NULL) {
gpkcs11_log("pulDataLen NULL\n");
ret = CKR_ARGUMENTS_BAD;
goto out;
}
if (pEncryptedData == NULL_PTR) {
gpkcs11_log("data NULL\n");
ret = CKR_ARGUMENTS_BAD;
goto out;
}
len = RSA_private_decrypt(ulEncryptedDataLen, pEncryptedData, buffer, rsa, padding);
if (len <= 0) {
ret = CKR_DEVICE_ERROR;
goto out;
}
if (len > buffer_len)
abort();
if (pData != NULL_PTR)
memcpy(pData, buffer, len);
*pulDataLen = len;
out:
if (buffer) {
memset(buffer, 0, buffer_len);
free(buffer);
}
return ret;
}
CK_RV
C_DecryptUpdate(CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pEncryptedPart, CK_ULONG ulEncryptedPartLen, CK_BYTE_PTR pPart, CK_ULONG_PTR pulPartLen)
{
gpkcs11_log("DecryptUpdate\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_DecryptFinal(CK_SESSION_HANDLE hSession, CK_BYTE_PTR pLastPart, CK_ULONG_PTR pulLastPartLen)
{
gpkcs11_log("DecryptFinal\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_DigestInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism)
{
gpkcs11_log("DigestInit\n");
VERIFY_SESSION_HANDLE(hSession, NULL);
return CKR_FUNCTION_NOT_SUPPORTED;
}
CK_RV
C_SignInit(CK_SESSION_HANDLE hSession, CK_MECHANISM_PTR pMechanism, CK_OBJECT_HANDLE hKey)
{
struct gpkcs11_session_state *state;
CK_MECHANISM_TYPE mechs[] = { CKM_RSA_PKCS, CKM_RSA_X_509 };
CK_BBOOL bool_true = CK_TRUE;
CK_ATTRIBUTE attr[] = {
{ CKA_SIGN, &bool_true, sizeof(bool_true) }
};
struct gpkcs11_st_object *o;
CK_RV ret;
gpkcs11_log("SignInit\n");
VERIFY_SESSION_HANDLE(hSession, &state);
ret = commonInit(attr, sizeof(attr) / sizeof(attr[0]),
mechs, sizeof(mechs) / sizeof(mechs[0]), pMechanism, hKey, &o);
if (ret)
return ret;
ret = dup_mechanism(&state->sign_mechanism, pMechanism);
if (ret == CKR_OK)
state->sign_object = OBJECT_ID(o);
return CKR_OK;
}
CK_RV
C_Sign(CK_SESSION_HANDLE hSession,
CK_BYTE_PTR pData, CK_ULONG ulDataLen, CK_BYTE_PTR pSignature, CK_ULONG_PTR pulSignatureLen)
{
struct gpkcs11_session_state *state;
struct gpkcs11_st_object *o;
void *buffer = NULL;
CK_RV ret;
RSA *rsa;
int padding, len, buffer_len, padding_len;
gpkcs11_log("Sign\n");
VERIFY_SESSION_HANDLE(hSession, &state);
if (state->sign_object == -1)
return CKR_ARGUMENTS_BAD;
o = gpkcs11_soft_token.object.objs[state->sign_object];
if (o->u.private_key.key == NULL) {
gpkcs11_log("private key NULL\n");
return CKR_ARGUMENTS_BAD;
}
rsa = o->u.private_key.key->pkey.rsa;
if (rsa == NULL)
return CKR_ARGUMENTS_BAD;
RSA_blinding_off(rsa); /* XXX RAND is broken while running in mozilla ? */
buffer_len = RSA_size(rsa);
buffer = malloc(buffer_len);
if (buffer == NULL) {
ret = CKR_DEVICE_MEMORY;
goto out;
}
switch (state->sign_mechanism->mechanism) {
case CKM_RSA_PKCS:
padding = RSA_PKCS1_PADDING;
padding_len = RSA_PKCS1_PADDING_SIZE;