/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
 * This file defines functions associated with CertStore types.
 *
 */


#ifndef _PKIX_SAMPLEMODULES_H
#define _PKIX_SAMPLEMODULES_H

#include "pkix_pl_common.h"

#ifdef __cplusplus
extern "C" {
#endif

/* General
 *
 * Please refer to the libpkix Programmer's Guide for detailed information
 * about how to use the libpkix library. Certain key warnings and notices from
 * that document are repeated here for emphasis.
 *
 * All identifiers in this file (and all public identifiers defined in
 * libpkix) begin with "PKIX_". Private identifiers only intended for use
 * within the library begin with "pkix_".
 *
 * A function returns NULL upon success, and a PKIX_Error pointer upon failure.
 *
 * Unless otherwise noted, for all accessor (gettor) functions that return a
 * PKIX_PL_Object pointer, callers should assume that this pointer refers to a
 * shared object. Therefore, the caller should treat this shared object as
 * read-only and should not modify this shared object. When done using the
 * shared object, the caller should release the reference to the object by
 * using the PKIX_PL_Object_DecRef function.
 *
 * While a function is executing, if its arguments (or anything referred to by
 * its arguments) are modified, free'd, or destroyed, the function's behavior
 * is undefined.
 *
 */

/* PKIX_PL_CollectionCertStore
 *
 * A PKIX_CollectionCertStore provides an example for showing how to retrieve
 * certificates and CRLs from a repository, such as a directory in the system.
 * It is expected the directory is an absolute directory which contains CRL
 * and Cert data files.  CRL files are expected to have the suffix of .crl
 * and Cert files are expected to have the suffix of .crt .
 *
 * Once the caller has created the CollectionCertStoreContext object, the caller
 * then can call pkix_pl_CollectionCertStore_GetCert or
 * pkix_pl_CollectionCertStore_GetCRL to obtain Lists of PKIX_PL_Cert or
 * PKIX_PL_CRL objects, respectively.
 */

/*
 * FUNCTION: PKIX_PL_CollectionCertStore_Create
 * DESCRIPTION:
 *
 *  Creates a new CollectionCertStore and returns it at
 *      "pColCertStore".
 *
 * PARAMETERS:
 *  "storeDir"
 *      The absolute path where *.crl files are located.
 *  "pColCertStoreContext"
 *      Address where object pointer will be stored. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a CollectionCertStoreContext Error if the function fails in
 *      a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_CollectionCertStore_Create(
        PKIX_PL_String *storeDir,
        PKIX_CertStore **pCertStore,
        void *plContext);

/* PKIX_PL_PK11CertStore
 *
 * A PKIX_PL_PK11CertStore retrieves certificates and CRLs from a PKCS11
 * database. The directory that contains the cert8.db, key3.db, and secmod.db
 * files that comprise a PKCS11 database are specified in NSS initialization.
 *
 * Once the caller has created the Pk11CertStore object, the caller can call
 * pkix_pl_Pk11CertStore_GetCert or pkix_pl_Pk11CertStore_GetCert to obtain
 * a List of PKIX_PL_Certs or PKIX_PL_CRL objects, respectively.
 */

/*
 * FUNCTION: PKIX_PL_Pk11CertStore_Create
 * DESCRIPTION:
 *
 *  Creates a new Pk11CertStore and returns it at "pPk11CertStore".
 *
 * PARAMETERS:
 *  "pPk11CertStore"
 *      Address where object pointer will be stored. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a CertStore Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_Pk11CertStore_Create(
        PKIX_CertStore **pPk11CertStore,
        void *plContext);

#ifndef NSS_PKIX_NO_LDAP
/* PKIX_PL_LdapCertStore
 *
 * A PKIX_PL_LdapCertStore retrieves certificates and CRLs from an LDAP server
 * over a socket connection. It used the LDAP protocol as described in RFC1777.
 *
 * Once the caller has created the LdapCertStore object, the caller can call
 * pkix_pl_LdapCertStore_GetCert or pkix_pl_LdapCertStore_GetCert to obtain
 * a List of PKIX_PL_Certs or PKIX_PL_CRL objects, respectively.
 */

/*
 * FUNCTION: PKIX_PL_LdapDefaultClient_Create
 * DESCRIPTION:
 *
 *  Creates an LdapDefaultClient using the PRNetAddr poined to by "sockaddr",
 *  with a timeout value of "timeout", and a BindAPI pointed to by "bindAPI";
 *  and stores the address of the default LdapClient at "pClient".
 *
 *  At the time of this version, there are unresolved questions about the LDAP
 *  protocol. Although RFC1777 describes a BIND and UNBIND message, it is not
 *  clear whether they are appropriate to this application. We have tested only
 *  using servers that do not expect authentication, and that reject BIND
 *  messages. It is not clear what values might be appropriate for the bindname
 *  and authentication fields, which are currently implemented as char strings
 *  supplied by the caller. (If this changes, the API and possibly the templates
 *  will have to change.) Therefore the Client_Create API contains a BindAPI
 *  structure, a union, which will have to be revised and extended when this
 *  area of the protocol is better understood.
 *
 * PARAMETERS:
 *  "sockaddr"
 *      Address of the PRNetAddr to be used for the socket connection. Must be
 *      non-NULL.
 *  "timeout"
 *      The PRIntervalTime value to be used as a timeout value in socket calls;
 *      a zero value indicates non-blocking I/O is to be used.
 *  "bindAPI"
 *      The address of a BindAPI to be used if a BIND message is required. If
 *      this argument is NULL, no Bind (or Unbind) will be sent.
 *  "pClient"
 *      Address where object pointer will be stored. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a CertStore Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_LdapDefaultClient_Create(
        PRNetAddr *sockaddr,
        PRIntervalTime timeout,
        LDAPBindAPI *bindAPI,
        PKIX_PL_LdapDefaultClient **pClient,
        void *plContext);

/*
 * FUNCTION: PKIX_PL_LdapDefaultClient_CreateByName
 * DESCRIPTION:
 *
 *  Creates an LdapDefaultClient using the hostname poined to by "hostname",
 *  with a timeout value of "timeout", and a BindAPI pointed to by "bindAPI";
 *  and stores the address of the default LdapClient at "pClient".
 *
 *  At the time of this version, there are unresolved questions about the LDAP
 *  protocol. Although RFC1777 describes a BIND and UNBIND message, it is not
 *  clear whether they are appropriate to this application. We have tested only
 *  using servers that do not expect authentication, and that reject BIND
 *  messages. It is not clear what values might be appropriate for the bindname
 *  and authentication fields, which are currently implemented as char strings
 *  supplied by the caller. (If this changes, the API and possibly the templates
 *  will have to change.) Therefore the Client_Create API contains a BindAPI
 *  structure, a union, which will have to be revised and extended when this
 *  area of the protocol is better understood.
 *
 * PARAMETERS:
 *  "hostname"
 *      Address of the hostname to be used for the socket connection. Must be
 *      non-NULL.
 *  "timeout"
 *      The PRIntervalTime value to be used as a timeout value in socket calls;
 *      a zero value indicates non-blocking I/O is to be used.
 *  "bindAPI"
 *      The address of a BindAPI to be used if a BIND message is required. If
 *      this argument is NULL, no Bind (or Unbind) will be sent.
 *  "pClient"
 *      Address where object pointer will be stored. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a CertStore Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_LdapDefaultClient_CreateByName(
        char *hostname,
        PRIntervalTime timeout,
        LDAPBindAPI *bindAPI,
        PKIX_PL_LdapDefaultClient **pClient,
        void *plContext);

/*
 * FUNCTION: PKIX_PL_LdapCertStore_Create
 * DESCRIPTION:
 *
 *  Creates a new LdapCertStore using the LdapClient pointed to by "client",
 *  and stores the address of the CertStore at "pCertStore".
 *
 * PARAMETERS:
 *  "client"
 *      Address of the LdapClient to be used. Must be non-NULL.
 *  "pCertStore"
 *      Address where object pointer will be stored. Must be non-NULL.
 *  "plContext"
 *      Platform-specific context pointer.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a CertStore Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_LdapCertStore_Create(
        PKIX_PL_LdapClient *client,
        PKIX_CertStore **pCertStore,
        void *plContext);
#endif /* !NSS_PKIX_NO_LDAP */

/* PKIX_PL_NssContext
 *
 * A PKIX_PL_NssContext provides an example showing how the "plContext"
 * argument, that is part of every libpkix function call, can be used.
 * The "plContext" is the Portability Layer Context, which can be used
 * to communicate layer-specific information from the application to the
 * underlying Portability Layer (while bypassing the Portable Code, which
 * blindly passes the plContext on to every function call).
 *
 * In this case, NSS serves as both the application and the Portability Layer.
 * We define an NSS-specific structure, which includes an arena and a number
 * of SECCertificateUsage bit flags encoded as a PKIX_UInt32. A third argument,
 * wincx, is used on Windows platforms for PKCS11 access, and should be set to
 * NULL for other platforms.
 * Before calling any of the libpkix functions, the caller should create the NSS
 * context, by calling PKIX_PL_NssContext_Create, and provide that NSS context
 * as the "plContext" argument in every libpkix function call the caller makes.
 * When the caller is finished using the NSS context (usually just after he
 * calls PKIX_Shutdown), the caller should call PKIX_PL_NssContext_Destroy to
 * free the NSS context structure.
 */

/*
 * FUNCTION: PKIX_PL_NssContext_Create
 * DESCRIPTION:
 *
 *  Creates a new NssContext using the certificate usage(s) specified by
 *  "certUsage" and stores it at "pNssContext". This function also internally
 *  creates an arena and stores it as part of the NssContext structure. Unlike
 *  most other libpkix API functions, this function does not take a "plContext"
 *  parameter.
 *
 * PARAMETERS:
 *  "certUsage"
 *      The desired SECCertificateUsage(s).
 *  "useNssArena"
 *      Boolean flag indicates NSS Arena is used for memory allocation.
 *  "wincx"
 *      A Windows-dependent pointer for PKCS11 token handling.
 *  "pNssContext"
 *      Address where object pointer will be stored. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_Create(
        PKIX_UInt32 certificateUsage,
        PKIX_Boolean useNssArena,
        void *wincx,
        void **pNssContext);

/*
 * FUNCTION: PKIX_PL_NssContext_Destroy
 * DESCRIPTION:
 *
 *  Frees the structure pointed to by "nssContext" along with any of its
 *  associated memory. Unlike most other libpkix API functions, this function
 *  does not take a "plContext" parameter.
 *
 * PARAMETERS:
 *  "nssContext"
 *      Address of NssContext to be destroyed. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_Destroy(
        void *nssContext);

/*
 * FUNCTION: PKIX_PL_NssContext_SetTimeout
 * DESCRIPTION:
 *
 * Sets IO timeout for network operations like OCSP response and cert
 * fetching.
 *
 * PARAMETERS:
 *  "nssContext"
 *      Address of NssContext to be destroyed. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_SetTimeout(PKIX_UInt32 timeout, PKIX_PL_NssContext *nssContext);

/*
 * FUNCTION: PKIX_PL_NssContext_SetMaxResponseLen
 * DESCRIPTION:
 *
 * Sets maximum responce length allowed during network IO operations.
 *
 * PARAMETERS:
 *  "nssContext"
 *      Address of NssContext to be destroyed. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_SetMaxResponseLen(PKIX_UInt32 len, PKIX_PL_NssContext *nssContext);

/*
 * FUNCTION: PKIX_PL_NssContext_SetCrlReloadDelay
 * DESCRIPTION:
 *
 * Sets user defined timeout between attempts to load crl using
 * CRLDP.
 *
 * PARAMETERS:
 *  "delaySeconds"
 *      Reload delay in seconds.
 *  "nssContext"
 *      Address of NssContext to be destroyed. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_SetCrlReloadDelay(PKIX_UInt32 delaySeconds,
                                       PKIX_PL_NssContext *nssContext);

/*
 * FUNCTION: PKIX_PL_NssContext_SetBadDerCrlReloadDelay
 * DESCRIPTION:
 *
 * Sets user defined timeout between attempts to load crls
 * that failed to decode.
 *
 * PARAMETERS:
 *  "delaySeconds"
 *      Reload delay in seconds.
 *  "nssContext"
 *      Address of NssContext to be destroyed. Must be non-NULL.
 * THREAD SAFETY:
 *  Thread Safe (see Thread Safety Definitions in Programmer's Guide)
 * RETURNS:
 *  Returns NULL if the function succeeds.
 *  Returns a Context Error if the function fails in a non-fatal way.
 *  Returns a Fatal Error if the function fails in an unrecoverable way.
 */
PKIX_Error *
PKIX_PL_NssContext_SetBadDerCrlReloadDelay(PKIX_UInt32 delaySeconds,
                                           PKIX_PL_NssContext *nssContext);
#ifdef __cplusplus
}
#endif

#endif /* _PKIX_SAMPLEMODULES_H */