p7econn.c
上传用户:lyxiangda
上传日期:2007-01-12
资源大小:3042k
文件大小:14k
- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /*
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- */
- #include "p7econn.h"
- #include "serv.h"
- #include "servimpl.h"
- #include "ssmerrs.h"
- #include "newproto.h"
- #include "messages.h"
- #include "collectn.h"
- /* Shorthand macros for inherited classes */
- #define SSMRESOURCE(conn) (&(conn)->super.super.super)
- #define SSMCONNECTION(conn) (&(conn)->super.super)
- #define SSMDATACONNECTION(conn) (&(conn)->super)
- #define SSM_PARENT_CONN(conn) ((SSMControlConnection*)((conn)->super.super.m_parent))
- void SSMP7EncodeConnection_ServiceThread(void * arg);
- /* callbacks for PKCS7 encoder */
- void SSMP7EncodeConnection_ContentCallback(void *arg,
- const char *buf,
- unsigned long len);
- SECItem * SSMP7EncodeConnection_GetPasswordKey(void *arg,
- SECKEYKeyDBHandle *handle);
- SSMStatus SSMP7EncodeConnection_Create(void *arg,
- SSMControlConnection *connection,
- SSMResource **res)
- {
- SSMStatus rv = PR_SUCCESS;
- SSMP7EncodeConnection *conn;
- *res = NULL; /* in case we fail */
-
- conn = (SSMP7EncodeConnection *) PR_CALLOC(sizeof(SSMP7EncodeConnection));
- if (!conn)
- goto loser;
- SSMRESOURCE(conn)->m_connection = connection;
- rv = SSMP7EncodeConnection_Init(conn, (SSMInfoP7Encode *) arg,
- SSM_RESTYPE_PKCS7_ENCODE_CONNECTION);
- if (rv != PR_SUCCESS)
- goto loser;
- SSMP7EncodeConnection_Invariant(conn);
-
- *res = SSMRESOURCE(conn);
- return PR_SUCCESS;
- loser:
- if (rv == PR_SUCCESS)
- rv = PR_FAILURE;
- if (conn) {
- SSM_ShutdownResource(SSMRESOURCE(conn), rv); /* force destroy */
- SSM_FreeResource(SSMRESOURCE(conn));
- }
-
- return rv;
- }
- SSMStatus SSMP7EncodeConnection_Init(SSMP7EncodeConnection *conn,
- SSMInfoP7Encode *info,
- SSMResourceType type)
- {
- SSMStatus rv = PR_SUCCESS;
- SSMP7ContentInfo *cinfo;
-
- rv = SSMDataConnection_Init(SSMDATACONNECTION(conn), info->ctrl, type);
- if (rv != PR_SUCCESS)
- goto loser;
- /* Spin the service thread. */
- SSM_DEBUG("Creating encoder service thread.n");
- SSM_GetResourceReference(SSMRESOURCE(conn));
- rv = SSMControlConnection_GetResource(SSM_PARENT_CONN(conn), info->ciRID,
- (SSMResource **)&cinfo);
- if (rv != PR_SUCCESS)
- goto loser;
- conn->m_cinfo = cinfo;
- /* Save the client UI context */
- SSMRESOURCE(conn)->m_clientContext = info->clientContext;
- SSMDATACONNECTION(conn)->m_dataServiceThread =
- SSM_CreateThread(SSMRESOURCE(conn),
- SSMP7EncodeConnection_ServiceThread);
- if (SSMDATACONNECTION(conn)->m_dataServiceThread == NULL) {
- goto loser;
- }
- return PR_SUCCESS;
- loser:
- if (rv == PR_SUCCESS)
- rv = PR_FAILURE;
- return rv;
- }
- SSMStatus
- SSMP7EncodeConnection_FinishEncoding(SSMP7EncodeConnection *conn)
- {
- SECStatus rv = SECSuccess;
- SSM_LockResource(SSMRESOURCE(conn));
- if (conn->m_cinfo) {
- SSM_FreeResource(&conn->m_cinfo->super);
- conn->m_cinfo = NULL;
- }
- if (conn->m_context) {
- conn->m_retValue = SEC_PKCS7EncoderFinish(conn->m_context,
- SSMP7EncodeConnection_GetPasswordKey,
- conn);
- conn->m_error = PR_GetError();
- conn->m_context = NULL;
- }
- SSM_UnlockResource(SSMRESOURCE(conn));
- return rv;
- }
- SSMStatus
- SSMP7EncodeConnection_StartEncoding(SSMP7EncodeConnection *conn)
- {
- PR_ASSERT(conn->m_context == NULL);
-
- SSM_LockResource(SSMRESOURCE(conn));
- if (conn->m_context)
- SSMP7EncodeConnection_FinishEncoding(conn);
- conn->m_context =
- SEC_PKCS7EncoderStart(conn->m_cinfo->m_cinfo,
- SSMP7EncodeConnection_ContentCallback,
- conn, NULL);
- SSM_UnlockResource(SSMRESOURCE(conn));
- return PR_SUCCESS;
- }
- SSMStatus SSMP7EncodeConnection_Destroy(SSMResource *res, PRBool doFree)
- {
- SSMP7EncodeConnection *conn = (SSMP7EncodeConnection *) res;
- if (doFree)
- SSM_DEBUG("SSMHashConnection_Destroy called.n");
- /* We should be shut down. */
- PR_ASSERT(res->m_threadCount == 0);
- /* Destroy our fields. */
- SSM_LockResource(SSMRESOURCE(conn));
- if (conn->m_context)
- SSMP7EncodeConnection_FinishEncoding(conn);
- if (conn->m_cinfo) {
- SSM_FreeResource(&conn->m_cinfo->super);
- conn->m_cinfo = NULL;
- }
- SSM_UnlockResource(SSMRESOURCE(conn));
-
- /* Destroy superclass fields. */
- SSMDataConnection_Destroy(SSMRESOURCE(conn), PR_FALSE);
- /* Free the connection object if asked. */
- if (doFree)
- PR_DELETE(conn);
- return PR_SUCCESS;
- }
- void
- SSMP7EncodeConnection_Invariant(SSMP7EncodeConnection *conn)
- {
- SSMDataConnection_Invariant(SSMDATACONNECTION(conn));
- /* our specific invariants */
- SSM_LockResource(SSMRESOURCE(conn));
- /* check class */
- PR_ASSERT(SSM_IsAKindOf(SSMRESOURCE(conn),
- SSM_RESTYPE_PKCS7_ENCODE_CONNECTION));
- /* we should not be simultaneously encoded and encoding */
- if (conn->m_context)
- PR_ASSERT(conn->m_cinfo != NULL);
- SSM_UnlockResource(SSMRESOURCE(conn));
- }
- SSMStatus
- SSMP7EncodeConnection_Shutdown(SSMResource *arg, SSMStatus status)
- {
- SSMStatus rv = SSM_SUCCESS;
-
- /* Call our superclass shutdown. */
- rv = SSMDataConnection_Shutdown(arg, status);
- return rv;
- }
- /*
- PKCS7 decoding is performed by a single service thread. This thread
- feeds data from the outgoing queue into the PKCS7 encoder.
- */
- void SSMP7EncodeConnection_ServiceThread(void * arg)
- {
- SSMStatus rv = PR_SUCCESS;
- SSMP7EncodeConnection * conn;
- SSMControlConnection *ctrl;
- SECItem *msg;
- PRIntn read;
- char buffer[LINESIZE+1] = {0};
- SSM_RegisterNewThread("p7encode", (SSMResource *) arg);
- conn = (SSMP7EncodeConnection *)arg;
- SSM_DEBUG("initializing.n");
- if (!arg) {
- PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
- goto loser;
- }
- SSMDATACONNECTION(conn)->m_dataServiceThread = PR_GetCurrentThread();
- /* set up the client data socket and authenticate it with nonce */
- rv = SSMDataConnection_SetupClientSocket(SSMDATACONNECTION(conn));
- if (rv != PR_SUCCESS) {
- goto loser;
- }
- /* Start encoding */
- SSM_DEBUG("Creating encoder.n");
- SSMP7EncodeConnection_StartEncoding(conn);
- while ((SSMRESOURCE(conn)->m_status == PR_SUCCESS) &&
- (SSM_Count(SSMDATACONNECTION(conn)->m_shutdownQ) == 0) &&
- (rv == PR_SUCCESS)) {
- read = LINESIZE; /* set the read size to the default line size */
- rv = SSMDataConnection_ReadFromSocket(SSMDATACONNECTION(conn),
- (PRInt32*)&read, buffer);
-
- if (read > 0) {
- /* there is data, pass it along to PKCS7 */
- SSM_DEBUG("Received %ld bytes of data for encoder.n", read);
- PR_ASSERT(conn->m_context);
- SEC_PKCS7EncoderUpdate(conn->m_context, buffer, read);
- }
- else {
- /* either EOF or an error condition */
- goto finish;
- }
- }
- finish:
- SSM_DEBUG("Stopping PKCS7 encoder.n");
- /* If we have a encoder in progress, stop it. */
- SSM_LockResource(SSMRESOURCE(conn));
- if (conn->m_context) {
- SSMP7EncodeConnection_FinishEncoding(conn);
- }
- SSM_UnlockResource(SSMRESOURCE(conn));
- if (rv == PR_SUCCESS) {
- /* we have an EOF, shut down the client socket. */
- PR_ASSERT(SSMDATACONNECTION(conn)->m_clientSocket != NULL);
- if (SSMDATACONNECTION(conn)->m_clientSocket != NULL) {
- SSM_DEBUG("shutting down client socket.n");
- SSM_LockResource(SSMRESOURCE(conn));
- PR_Shutdown(SSMDATACONNECTION(conn)->m_clientSocket,
- PR_SHUTDOWN_SEND);
- SSM_UnlockResource(SSMRESOURCE(conn));
- }
- }
- /* If we've been asked to return the result, return it. */
- if (SSMDATACONNECTION(conn)->m_sendResult) {
- SSM_DEBUG("Responding to deferred content info request.n");
- msg = (SECItem*)PORT_ZAlloc(sizeof(SECItem));
- PR_ASSERT(msg != NULL); /* need to have some preallocated
- failure to send */
- if (conn->m_cinfo) {
- SSMAttributeValue value;
- GetAttribReply reply;
- value.type = SSM_RID_ATTRIBUTE;
- rv = SSM_ClientGetResourceReference(&conn->m_cinfo->super,
- &value.u.rid);
- if (rv != PR_SUCCESS) {
- goto loser;
- }
- msg->type = (SECItemType) (SSM_REPLY_OK_MESSAGE | SSM_RESOURCE_ACTION
- | SSM_GET_ATTRIBUTE | SSM_RID_ATTRIBUTE);
- reply.value = value;
- reply.result = SSM_SUCCESS;
- if (CMT_EncodeMessage(GetAttribReplyTemplate, (CMTItem*)msg, &reply) != CMTSuccess) {
- goto loser;
- }
- SSM_DEBUG("Generated a reply (t %lx/l %ld/d %lx)n",
- msg->type, msg->len, msg->data);
- } else {
- SingleNumMessage reply;
- msg->type = (SECItemType) (SSM_REPLY_ERR_MESSAGE | SSM_RESOURCE_ACTION
- | SSM_GET_ATTRIBUTE | SSM_STRING_ATTRIBUTE);
- reply.value = SSM_ERR_ATTRIBUTE_MISSING;
- if (CMT_EncodeMessage(SingleNumMessageTemplate, (CMTItem*)msg, &reply) != CMTSuccess) {
- goto loser;
- }
- SSM_DEBUG("Generated error reply (t %lx/l %ld/d %lx)n",
- msg->type, msg->len, msg->data);
- }
- /* Post this message to the parent's control queue
- for delivery back to the client. */
- ctrl = (SSMControlConnection*)(SSMCONNECTION(conn)->m_parent);
- PR_ASSERT(SSM_IsAKindOf(&ctrl->super.super,
- SSM_RESTYPE_CONTROL_CONNECTION));
- rv = SSM_SendQMessage(ctrl->m_controlOutQ,
- SSM_PRIORITY_NORMAL,
- msg->type, msg->len,
- (char*)msg->data, PR_TRUE);
- SSM_FreeMessage(msg);
- if (rv != PR_SUCCESS)
- goto loser;
- }
- loser:
- SSM_DEBUG("** Thread shutting down ** (%ld)n", rv);
- if (conn != NULL) {
- SSM_ShutdownResource(SSMRESOURCE(conn), rv);
- SSM_FreeResource(SSMRESOURCE(conn));
- }
- }
- /* Callback functions for encoder. For now, use empty/default functions. */
- void SSMP7EncodeConnection_ContentCallback(void *arg,
- const char *buf,
- unsigned long len)
- {
- SSMStatus rv;
- SSMP7EncodeConnection *conn = (SSMP7EncodeConnection *)arg;
- PRIntn sent = 0;
- if (len == 0)
- return;
- SSM_DEBUG("writing data to socket.n");
- PR_ASSERT(SSMDATACONNECTION(conn)->m_clientSocket != NULL);
- sent = PR_Send(SSMDATACONNECTION(conn)->m_clientSocket, (void*)buf,
- (PRIntn)len, 0, PR_INTERVAL_NO_TIMEOUT);
- if (sent != (PRIntn)len) {
- rv = PR_GetError();
- SSM_DEBUG("error writing data: %d n", rv);
- }
- }
- SECItem * SSMP7EncodeConnection_GetPasswordKey(void *arg,
- SECKEYKeyDBHandle *handle)
- {
- return NULL;
- }
- SSMStatus SSMP7EncodeConnection_SetAttr(SSMResource *res,
- SSMAttributeID attrID,
- SSMAttributeValue *value)
- {
- switch(attrID) {
- case SSM_FID_CLIENT_CONTEXT:
- SSM_DEBUG("Setting PKCS7 Encode client contextn");
- if (value->type != SSM_STRING_ATTRIBUTE) {
- goto loser;
- }
- if (!(res->m_clientContext.data = (unsigned char *) PR_Malloc(value->u.string.len))) {
- goto loser;
- }
- memcpy(res->m_clientContext.data, value->u.string.data, value->u.string.len);
- res->m_clientContext.len = value->u.string.len;
- break;
- default:
- SSM_DEBUG("Got unknown P7 Encoder Set Attribute Request %dn", attrID);
- goto loser;
- break;
- }
- return PR_SUCCESS;
- loser:
- return PR_FAILURE;
- }
- SSMStatus SSMP7EncodeConnection_GetAttr(SSMResource *res,
- SSMAttributeID attrID,
- SSMResourceAttrType attrType,
- SSMAttributeValue *value)
- {
- SSMP7EncodeConnection *ec = (SSMP7EncodeConnection*)res;
- SSMP7EncodeConnection_Invariant(ec);
- switch (attrID) {
- case SSM_FID_P7CONN_RETURN_VALUE:
- value->type = SSM_NUMERIC_ATTRIBUTE;
- value->u.numeric = ec->m_retValue;
- break;
- case SSM_FID_P7CONN_ERROR_VALUE:
- value->type = SSM_NUMERIC_ATTRIBUTE;
- value->u.numeric = ec->m_error;
- break;
- default:
- SSM_DEBUG("Got unknown P7 Encoder Set Attribute Request %dn", attrID);
- goto loser;
- break;
- }
- return PR_SUCCESS;
- loser:
- return PR_FAILURE;
- }