src/pEpEngine.h
author Krista Grothoff <krista@pep-project.org>
Fri, 11 Nov 2016 14:08:20 +0100
branchENGINE-84
changeset 1377 20be7d9a7536
parent 1357 b1677cd84729
child 1381 f84211f27e5b
permissions -rw-r--r--
ENGINE 84: #comment tested, appears to work.
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "dynamic_api.h"
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#include "stringlist.h"
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#include "stringpair.h"    
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#include "timestamp.h"
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#define PEP_VERSION "1.0" // protocol version
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#define PEP_OWN_USERID "pEp_own_userId"
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// pEp Engine API
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//  caveat:
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//      Unicode data has to be normalized to NFC before calling
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//      UTF-8 strings are UTF-8 encoded C strings (zero terminated)
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struct _pEpSession;
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typedef struct _pEpSession * PEP_SESSION;
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typedef enum {
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    PEP_STATUS_OK                                   = 0,
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    PEP_INIT_CANNOT_LOAD_GPGME                      = 0x0110,
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    PEP_INIT_GPGME_INIT_FAILED                      = 0x0111,
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    PEP_INIT_NO_GPG_HOME                            = 0x0112,
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    PEP_INIT_NETPGP_INIT_FAILED                     = 0x0113,
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    PEP_INIT_SQLITE3_WITHOUT_MUTEX                  = 0x0120,
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    PEP_INIT_CANNOT_OPEN_DB                         = 0x0121,
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    PEP_INIT_CANNOT_OPEN_SYSTEM_DB                  = 0x0122,
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    PEP_KEY_NOT_FOUND                               = 0x0201,
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    PEP_KEY_HAS_AMBIG_NAME                          = 0x0202,
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    PEP_GET_KEY_FAILED                              = 0x0203,
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    PEP_CANNOT_EXPORT_KEY                           = 0x0204,
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    PEP_CANNOT_FIND_IDENTITY                        = 0x0301,
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    PEP_CANNOT_SET_PERSON                           = 0x0381,
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    PEP_CANNOT_SET_PGP_KEYPAIR                      = 0x0382,
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    PEP_CANNOT_SET_IDENTITY                         = 0x0383,
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    PEP_CANNOT_SET_TRUST                            = 0x0384,
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    PEP_KEY_BLACKLISTED                             = 0x0385,
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    PEP_UNENCRYPTED                                 = 0x0400,
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    PEP_VERIFIED                                    = 0x0401,
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    PEP_DECRYPTED                                   = 0x0402,
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    PEP_DECRYPTED_AND_VERIFIED                      = 0x0403,
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    PEP_DECRYPT_WRONG_FORMAT                        = 0x0404,
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    PEP_DECRYPT_NO_KEY                              = 0x0405,
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    PEP_DECRYPT_SIGNATURE_DOES_NOT_MATCH            = 0x0406,
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    PEP_VERIFY_NO_KEY                               = 0x0407,
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    PEP_VERIFIED_AND_TRUSTED                        = 0x0408,
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    PEP_CANNOT_DECRYPT_UNKNOWN                      = 0x04ff,
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    PEP_TRUSTWORD_NOT_FOUND                         = 0x0501,
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    PEP_TRUSTWORDS_FPR_WRONG_LENGTH                 = 0x0502,
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    PEP_CANNOT_CREATE_KEY                           = 0x0601,
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    PEP_CANNOT_SEND_KEY                             = 0x0602,
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    PEP_PHRASE_NOT_FOUND                            = 0x0701,
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    PEP_SEND_FUNCTION_NOT_REGISTERED                = 0x0801,
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    PEP_CONTRAINTS_VIOLATED                         = 0x0802,
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    PEP_CANNOT_ENCODE                               = 0x0803,
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    PEP_SYNC_NO_TRUSTWORDS_CALLBACK                 = 0x0901,
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    PEP_SYNC_ILLEGAL_MESSAGE                        = 0x0902,
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    PEP_SYNC_NO_INJECT_CALLBACK                     = 0x0903,
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    PEP_SEQUENCE_VIOLATED                           = 0x0970,
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    PEP_CANNOT_INCREASE_SEQUENCE                    = 0x0971,
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    PEP_CANNOT_SET_SEQUENCE_VALUE                   = 0x0972,
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    PEP_OWN_SEQUENCE                                = 0x097f,
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    PEP_SYNC_STATEMACHINE_ERROR                     = 0x0980,
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    PEP_SYNC_NO_TRUST                               = 0x0981,
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    PEP_STATEMACHINE_INVALID_STATE                  = 0x0982,
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    PEP_STATEMACHINE_INVALID_EVENT                  = 0x0983,
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    PEP_STATEMACHINE_INVALID_CONDITION              = 0x0984,
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    PEP_STATEMACHINE_INVALID_ACTION                 = 0x0985,
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    PEP_STATEMACHINE_INHIBITED_EVENT                = 0x0986,
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    PEP_COMMIT_FAILED                               = 0xff01,
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    PEP_MESSAGE_CONSUMED                            = 0xff02,
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    PEP_MESSAGE_DISCARDED                           = 0xff03,
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    PEP_RECORD_NOT_FOUND                            = -6,
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    PEP_CANNOT_CREATE_TEMP_FILE                     = -5,
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    PEP_ILLEGAL_VALUE                               = -4,
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    PEP_BUFFER_TOO_SMALL                            = -3,
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    PEP_OUT_OF_MEMORY                               = -2,
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    PEP_UNKNOWN_ERROR                               = -1
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} PEP_STATUS;
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// INIT_STATUS init() - initialize pEpEngine for a thread
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//
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//  parameters:
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//        session (out)   init() allocates session memory and returns a pointer
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//                        as a handle
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//
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//  return value:
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//        PEP_STATUS_OK = 0                 if init() succeeds
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//        PEP_INIT_SQLITE3_WITHOUT_MUTEX    if SQLite3 was compiled with
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//                                            SQLITE_THREADSAFE 0
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//        PEP_INIT_CANNOT_LOAD_GPGME        if libgpgme.dll cannot be found
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//        PEP_INIT_GPGME_INIT_FAILED        if GPGME init fails
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//        PEP_INIT_CANNOT_OPEN_DB           if user's management db cannot be
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//                                            opened
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//        PEP_INIT_CANNOT_OPEN_SYSTEM_DB    if system's management db cannot be
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//                                            opened
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//
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//  caveat:
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//      the pointer is valid only if the return value is PEP_STATUS_OK
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//      in other case a NULL pointer will be returned; a valid handle must
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//      be released using release() when it's no longer needed
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//
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//      the caller has to guarantee that the first call to this function
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//      will succeed before further calls can be done
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DYNAMIC_API PEP_STATUS init(PEP_SESSION *session);
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// void release() - release thread session handle
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//
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//  parameters:
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//        session (in)    session handle to release
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//
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//    caveat:
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//        the last release() can be called only when all other release() calls
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//        are done
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DYNAMIC_API void release(PEP_SESSION session);
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// config_passive_mode() - enable passive mode
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//
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//  parameters:
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//      session (in)    session handle
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//      enable (in)     flag if enabled or disabled
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DYNAMIC_API void config_passive_mode(PEP_SESSION session, bool enable);
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// config_unencrypted_subject() - disable subject encryption
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//
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//  parameters:
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//      session (in)    session handle
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//      enable (in)     flag if enabled or disabled
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DYNAMIC_API void config_unencrypted_subject(PEP_SESSION session, bool enable);
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// config_use_only_own_private_keys() - enable passive mode
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//
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//  parameters:
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//      session (in)    session handle
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//      enable (in)     flag if enabled or disabled
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DYNAMIC_API void config_use_only_own_private_keys(PEP_SESSION session, bool enable);
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// config_keep_sync_msg() - do not remove sync messages (for debugging purposes)
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//
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//      session (in)    session handle
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//      enable (in)     flag if enabled or disabled
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DYNAMIC_API void config_keep_sync_msg(PEP_SESSION session, bool enable);
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// decrypt_and_verify() - decrypt and/or verify a message
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//
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//    parameters:
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//        session (in)    session handle
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//        ctext (in)      cipher text to decrypt and/or verify
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//        csize (in)      size of cipher text
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//        ptext (out)     pointer to internal buffer with plain text
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//        psize (out)     size of plain text
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//        keylist (out)   list of key ids which where used to encrypt
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//
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//    return value:
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//        PEP_UNENCRYPTED               message was unencrypted and not signed
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//        PEP_VERIFIED                  message was unencrypted, signature matches
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//        PEP_DECRYPTED                 message is decrypted now, no signature
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//        PEP_DECRYPTED_AND_VERIFIED    message is decrypted now and verified
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//        PEP_DECRYPT_WRONG_FORMAT      message has wrong format to handle
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//        PEP_DECRYPT_NO_KEY            key not available to decrypt and/or verify
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//        PEP_DECRYPT_SIGNATURE_DOES_NOT_MATCH    wrong signature
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//
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//    caveat:
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//        the ownerships of ptext as well as keylist are going to the caller
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//        the caller must use free() (or an Windoze pEp_free()) and
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//        free_stringlist() to free them
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//
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//      if this function failes an error message may be the first element of
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//      keylist and the other elements may be the keys used for encryption
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DYNAMIC_API PEP_STATUS decrypt_and_verify(
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        PEP_SESSION session, const char *ctext, size_t csize,
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        char **ptext, size_t *psize, stringlist_t **keylist
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    );
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// verify_text() - verfy plain text with a digital signature
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//
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//  parameters:
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//      session (in)    session handle
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//      text (in)       text to verify
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//      size (in)       size of text
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//      signature (in)  signature text
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//      sig_size (in)   size of signature
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//      keylist (out)   list of key ids which where used to encrypt or NULL on
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//                        error
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//
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//  return value:
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//        PEP_VERIFIED                message was unencrypted, signature matches
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//        PEP_DECRYPT_NO_KEY          key not available to decrypt and/or verify
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//        PEP_DECRYPT_SIGNATURE_DOES_NOT_MATCH    wrong signature
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DYNAMIC_API PEP_STATUS verify_text(
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        PEP_SESSION session, const char *text, size_t size,
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        const char *signature, size_t sig_size, stringlist_t **keylist
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    );
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// encrypt_and_sign() - encrypt and sign a message
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//
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//    parameters:
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//        session (in)    session handle
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//        keylist (in)    list of key ids to encrypt with as C strings
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//        ptext (in)      plain text to decrypt and/or verify
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//        psize (in)      size of plain text
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//        ctext (out)     pointer to internal buffer with cipher text
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//        csize (out)     size of cipher text
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//
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//    return value:
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//        PEP_STATUS_OK = 0            encryption and signing succeeded
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//        PEP_KEY_NOT_FOUND            at least one of the receipient keys
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//                                     could not be found
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//        PEP_KEY_HAS_AMBIG_NAME       at least one of the receipient keys has
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//                                     an ambiguous name
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//        PEP_GET_KEY_FAILED           cannot retrieve key
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//
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//    caveat:
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//      the ownership of ctext is going to the caller
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//      the caller is responsible to free() it (on Windoze use pEp_free())
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//      the first key in keylist is being used to sign the message
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//      this implies there has to be a private key for that keypair
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DYNAMIC_API PEP_STATUS encrypt_and_sign(
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        PEP_SESSION session, const stringlist_t *keylist, const char *ptext,
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        size_t psize, char **ctext, size_t *csize
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    );
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// log_event() - log a user defined event defined by UTF-8 encoded strings into
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// management log
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//
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//    parameters:
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//        session (in)        session handle
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//        title (in)          C string with event name
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//        entity (in)         C string with name of entity which is logging
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//        description (in)    C string with long description for event or NULL if
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//                            omitted
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//        comment (in)        C string with user defined comment or NULL if
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//                            omitted
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//
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//    return value:
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//        PEP_STATUS_OK       log entry created
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DYNAMIC_API PEP_STATUS log_event(
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        PEP_SESSION session,
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        const char *title,
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        const char *entity,
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        const char *description,
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        const char *comment
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    );
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// trustword() - get the corresponding trustword for a 16 bit value
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//
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//    parameters:
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//        session (in)            session handle
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//        value (in)              value to find a trustword for
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//        lang (in)               C string with ISO 639-1 language code
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//        word (out)              pointer to C string with trustword UTF-8 encoded
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//                                NULL if language is not supported or trustword
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//                                wordlist is damaged or unavailable
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//        wsize (out)             length of trustword
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//
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//    return value:
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//        PEP_STATUS_OK            trustword retrieved
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//        PEP_TRUSTWORD_NOT_FOUND  trustword not found
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//
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//    caveat:
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//        the word pointer goes to the ownership of the caller
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//      the caller is responsible to free() it (on Windoze use pEp_free())
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DYNAMIC_API PEP_STATUS trustword(
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            PEP_SESSION session, uint16_t value, const char *lang,
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            char **word, size_t *wsize
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        );
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// trustwords() - get trustwords for a string of hex values of a fingerprint
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//
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//    parameters:
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//        session (in)        session handle
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//        fingerprint (in)    C string with hex values to find trustwords for
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//        lang (in)           C string with ISO 639-1 language code
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//        words (out)         pointer to C string with trustwords UTF-8 encoded,
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//                            separated by a blank each
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//                            NULL if language is not supported or trustword
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//                            wordlist is damaged or unavailable
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//        wsize (out)         length of trustwords string
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//        max_words (in)      only generate a string with max_words;
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//                            if max_words == 0 there is no such limit
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//
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//    return value:
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//        PEP_STATUS_OK            trustwords retrieved
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//        PEP_OUT_OF_MEMORY        out of memory
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//        PEP_TRUSTWORD_NOT_FOUND  at least one trustword not found
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//
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//    caveat:
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//        the word pointer goes to the ownership of the caller
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//      the caller is responsible to free() it (on Windoze use pEp_free())
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//
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//  DON'T USE THIS FUNCTION FROM HIGH LEVEL LANGUAGES!
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//
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//  Better implement a simple one in the adapter yourself using trustword(), and
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//  return a list of trustwords.
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//  This function is provided for being used by C and C++ programs only.
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DYNAMIC_API PEP_STATUS trustwords(
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        PEP_SESSION session, const char *fingerprint, const char *lang,
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        char **words, size_t *wsize, int max_words
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    );
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// TODO: increase versions in pEp.asn1 if rating changes
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typedef enum _PEP_comm_type {
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    PEP_ct_unknown = 0,
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    // range 0x01 to 0x09: no encryption, 0x0a to 0x0e: nothing reasonable
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    PEP_ct_no_encryption = 0x01,                // generic
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    PEP_ct_no_encrypted_channel = 0x02,
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    PEP_ct_key_not_found = 0x03,
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    PEP_ct_key_expired = 0x04,
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    PEP_ct_key_revoked = 0x05,
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    PEP_ct_key_b0rken = 0x06,
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    PEP_ct_my_key_not_included = 0x09,
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    PEP_ct_security_by_obscurity = 0x0a,
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    PEP_ct_b0rken_crypto = 0x0b,
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    PEP_ct_key_too_short = 0x0c,
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    PEP_ct_compromized = 0x0e,                  // known compromized connection
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    PEP_ct_mistrusted = 0x0f,                   // known mistrusted key
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    // range 0x10 to 0x3f: unconfirmed encryption
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vb@0
   375
    PEP_ct_unconfirmed_encryption = 0x10,       // generic
roker@529
   376
    PEP_ct_OpenPGP_weak_unconfirmed = 0x11,     // RSA 1024 is weak
vb@190
   377
vb@190
   378
    PEP_ct_to_be_checked = 0x20,                // generic
vb@190
   379
    PEP_ct_SMIME_unconfirmed = 0x21,
vb@190
   380
    PEP_ct_CMS_unconfirmed = 0x22,
vb@190
   381
vb@190
   382
    PEP_ct_strong_but_unconfirmed = 0x30,       // generic
vb@122
   383
    PEP_ct_OpenPGP_unconfirmed = 0x38,          // key at least 2048 bit RSA or EC
vb@122
   384
    PEP_ct_OTR_unconfirmed = 0x3a,
vb@0
   385
vb@9
   386
    // range 0x40 to 0x7f: unconfirmed encryption and anonymization
vb@0
   387
vb@0
   388
    PEP_ct_unconfirmed_enc_anon = 0x40,         // generic
lix@710
   389
    PEP_ct_pEp_unconfirmed = 0x7f,
vb@0
   390
vb@9
   391
    PEP_ct_confirmed = 0x80,                    // this bit decides if trust is confirmed
vb@9
   392
vb@9
   393
    // range 0x81 to 0x8f: reserved
vb@9
   394
    // range 0x90 to 0xbf: confirmed encryption
vb@0
   395
vb@0
   396
    PEP_ct_confirmed_encryption = 0x90,         // generic
roker@529
   397
    PEP_ct_OpenPGP_weak = 0x91,                 // RSA 1024 is weak
vb@190
   398
vb@190
   399
    PEP_ct_to_be_checked_confirmed = 0xa0,      //generic
vb@190
   400
    PEP_ct_SMIME = 0xa1,
vb@190
   401
    PEP_ct_CMS = 0xa2,
vb@190
   402
vb@190
   403
    PEP_ct_strong_encryption = 0xb0,            // generic
roker@529
   404
    PEP_ct_OpenPGP = 0xb8,                      // key at least 2048 bit RSA or EC
roker@529
   405
    PEP_ct_OTR = 0xba,
vb@0
   406
vb@0
   407
    // range 0xc0 to 0xff: confirmed encryption and anonymization
vb@0
   408
vb@0
   409
    PEP_ct_confirmed_enc_anon = 0xc0,           // generic
roker@529
   410
    PEP_ct_pEp = 0xff
vb@0
   411
} PEP_comm_type;
vb@0
   412
vb@928
   413
typedef enum _identity_flags {
vb@951
   414
    // the first octet flags are app defined settings
vb@934
   415
    PEP_idf_not_for_sync = 1,   // don't use this identity for sync
vb@951
   416
    PEP_idf_list = 2,           // identity of list of persons
vb@945
   417
vb@951
   418
    // the second octet flags are calculated
vb@951
   419
    PEP_idf_devicegroup = 256   // identity of a device group member
vb@928
   420
} identity_flags;
vb@928
   421
vb@944
   422
typedef unsigned int identity_flags_t;
vb@944
   423
vb@0
   424
typedef struct _pEp_identity {
roker@529
   425
    char *address;              // C string with address UTF-8 encoded
roker@529
   426
    char *fpr;                  // C string with fingerprint UTF-8 encoded
roker@529
   427
    char *user_id;              // C string with user ID UTF-8 encoded
roker@529
   428
    char *username;             // C string with user name UTF-8 encoded
roker@529
   429
    PEP_comm_type comm_type;    // type of communication with this ID
roker@529
   430
    char lang[3];               // language of conversation
vb@0
   431
                                // ISO 639-1 ALPHA-2, last byte is 0
vb@0
   432
    bool me;                    // if this is the local user herself/himself
vb@944
   433
    identity_flags_t flags;     // identity_flag1 | identity_flag2 | ...
vb@0
   434
} pEp_identity;
vb@0
   435
Edouard@730
   436
typedef struct _identity_list {
Edouard@730
   437
    pEp_identity *ident;
Edouard@730
   438
    struct _identity_list *next;
Edouard@730
   439
} identity_list;
Edouard@730
   440
vb@0
   441
vb@0
   442
// new_identity() - allocate memory and set the string and size fields
vb@0
   443
//
vb@0
   444
//  parameters:
vb@0
   445
//      address (in)        UTF-8 string or NULL 
vb@0
   446
//      fpr (in)            UTF-8 string or NULL 
vb@0
   447
//      user_id (in)        UTF-8 string or NULL 
vb@0
   448
//      username (in)       UTF-8 string or NULL 
vb@0
   449
//
vb@0
   450
//  return value:
vb@932
   451
//      pEp_identity struct or NULL if out of memory
vb@0
   452
//
vb@0
   453
//  caveat:
vb@0
   454
//      the strings are copied; the original strings are still being owned by
vb@0
   455
//      the caller
vb@0
   456
vb@0
   457
DYNAMIC_API pEp_identity *new_identity(
vb@0
   458
        const char *address, const char *fpr, const char *user_id,
vb@0
   459
        const char *username
vb@0
   460
    );
vb@0
   461
vb@0
   462
vb@932
   463
// identity_dup() - allocate memory and duplicate
vb@37
   464
//
vb@37
   465
//  parameters:
vb@37
   466
//      src (in)            identity to duplicate
vb@37
   467
//
vb@37
   468
//  return value:
vb@932
   469
//      pEp_identity struct or NULL if out of memory
vb@37
   470
//
vb@37
   471
//  caveat:
vb@37
   472
//      the strings are copied; the original strings are still being owned by
vb@37
   473
//      the caller
vb@37
   474
vb@37
   475
DYNAMIC_API pEp_identity *identity_dup(const pEp_identity *src);
vb@37
   476
vb@37
   477
vb@0
   478
// free_identity() - free all memory being occupied by a pEp_identity struct
vb@0
   479
//
vb@0
   480
//  parameters:
vb@0
   481
//      identity (in)       struct to release
vb@0
   482
//
vb@0
   483
//  caveat:
vb@0
   484
//      not only the struct but also all string memory referenced by the
vb@0
   485
//      struct is being freed; all pointers inside are invalid afterwards
vb@0
   486
vb@0
   487
DYNAMIC_API void free_identity(pEp_identity *identity);
vb@0
   488
vb@0
   489
vb@0
   490
// get_identity() - get identity information
vb@0
   491
//
roker@529
   492
//    parameters:
roker@529
   493
//        session (in)        session handle
roker@529
   494
//        address (in)        C string with communication address, UTF-8 encoded
Edouard@562
   495
//        user_id (in)        unique C string to identify person that identity
Edouard@562
   496
//                            is refering to
roker@529
   497
//        identity (out)      pointer to pEp_identity structure with results or
roker@529
   498
//                            NULL if failure
vb@0
   499
//
roker@529
   500
//    caveat:
vb@951
   501
//        address and user_id are being copied; the original strings remains in
vb@951
   502
//        the ownership of the caller
roker@529
   503
//        the resulting pEp_identity structure goes to the ownership of the
roker@529
   504
//        caller and has to be freed with free_identity() when not in use any
roker@529
   505
//        more
vb@0
   506
vb@0
   507
DYNAMIC_API PEP_STATUS get_identity(
Edouard@559
   508
        PEP_SESSION session,
Edouard@559
   509
        const char *address,
Edouard@559
   510
        const char *user_id,
vb@0
   511
        pEp_identity **identity
vb@0
   512
    );
vb@0
   513
vb@0
   514
// set_identity() - set identity information
vb@0
   515
//
roker@529
   516
//    parameters:
roker@529
   517
//        session (in)        session handle
roker@529
   518
//        identity (in)       pointer to pEp_identity structure
vb@0
   519
//
roker@529
   520
//    return value:
roker@529
   521
//        PEP_STATUS_OK = 0             encryption and signing succeeded
roker@529
   522
//        PEP_CANNOT_SET_PERSON         writing to table person failed
roker@529
   523
//        PEP_CANNOT_SET_PGP_KEYPAIR    writing to table pgp_keypair failed
roker@529
   524
//        PEP_CANNOT_SET_IDENTITY       writing to table identity failed
roker@529
   525
//        PEP_COMMIT_FAILED             SQL commit failed
vb@932
   526
//        PEP_KEY_BLACKLISTED           Key blacklisted, cannot set identity
vb@0
   527
//
roker@529
   528
//    caveat:
vb@932
   529
//        address, fpr, user_id and username must be given
vb@0
   530
vb@0
   531
DYNAMIC_API PEP_STATUS set_identity(
vb@0
   532
        PEP_SESSION session, const pEp_identity *identity
vb@0
   533
    );
vb@0
   534
edouard@1234
   535
// set_device_group() - update own person's device group
edouard@1234
   536
//
edouard@1234
   537
//    parameters:
edouard@1234
   538
//        session (in)        session handle
edouard@1234
   539
//        group_name (in)     new group name
edouard@1234
   540
//
edouard@1234
   541
//    return value:
edouard@1235
   542
//        PEP_STATUS_OK = 0             device group was updated
edouard@1234
   543
//        PEP_CANNOT_SET_PERSON         update failed
edouard@1234
   544
edouard@1234
   545
DYNAMIC_API PEP_STATUS set_device_group(
edouard@1234
   546
        PEP_SESSION session,
edouard@1234
   547
        const char *group_name
edouard@1234
   548
    );
vb@0
   549
edouard@1235
   550
// get_device_group() - get own person's device group
edouard@1235
   551
//
edouard@1235
   552
//    parameters:
edouard@1235
   553
//        session (in)        session handle
edouard@1235
   554
//        group_name (in)     new group name
edouard@1235
   555
//
edouard@1235
   556
//    return value:
edouard@1235
   557
//        PEP_STATUS_OK = 0             couldn't get device group
edouard@1235
   558
//        PEP_RECORD_NOT_FOUND          update failed
edouard@1235
   559
//
edouard@1235
   560
//    caveat:
edouard@1235
   561
//        the ownerships of group_name is going to the caller
edouard@1235
   562
edouard@1235
   563
DYNAMIC_API PEP_STATUS get_device_group(
edouard@1235
   564
        PEP_SESSION session, 
edouard@1235
   565
        char **group_name
edouard@1235
   566
    );
edouard@1235
   567
vb@932
   568
// set_identity_flags() - update identity flags on existing identity
vb@932
   569
//
vb@932
   570
//    parameters:
vb@932
   571
//        session (in)        session handle
vb@934
   572
//        identity (in,out)   pointer to pEp_identity structure
vb@934
   573
//        flags (in)          new value for flags
vb@932
   574
//
vb@932
   575
//    return value:
vb@932
   576
//        PEP_STATUS_OK = 0             encryption and signing succeeded
vb@932
   577
//        PEP_CANNOT_SET_IDENTITY       update of identity failed
vb@932
   578
//
vb@932
   579
//    caveat:
vb@934
   580
//        address and user_id must be given in identity
vb@932
   581
vb@932
   582
DYNAMIC_API PEP_STATUS set_identity_flags(
vb@934
   583
        PEP_SESSION session,
vb@934
   584
        pEp_identity *identity,
vb@934
   585
        unsigned int flags
vb@932
   586
    );
vb@932
   587
vb@932
   588
vb@357
   589
// mark_as_compromized() - mark key in trust db as compromized
vb@357
   590
//
roker@529
   591
//    parameters:
roker@529
   592
//        session (in)        session handle
roker@529
   593
//        fpr (in)            fingerprint of key to mark
vb@357
   594
vb@357
   595
DYNAMIC_API PEP_STATUS mark_as_compromized(
vb@357
   596
        PEP_SESSION session,
vb@357
   597
        const char *fpr
vb@357
   598
    );
vb@357
   599
vb@357
   600
vb@0
   601
// generate_keypair() - generate a new key pair and add it to the key ring
vb@0
   602
//
vb@0
   603
//  parameters:
vb@0
   604
//      session (in)            session handle
roker@529
   605
//        identity (inout)      pointer to pEp_identity structure
vb@0
   606
//
roker@529
   607
//    return value:
roker@529
   608
//        PEP_STATUS_OK = 0       encryption and signing succeeded
roker@529
   609
//        PEP_ILLEGAL_VALUE       illegal values for identity fields given
roker@529
   610
//        PEP_CANNOT_CREATE_KEY   key engine is on strike
vb@0
   611
//
vb@0
   612
//  caveat:
vb@0
   613
//      address and username fields must be set to UTF-8 strings
vb@0
   614
//      the fpr field must be set to NULL
vb@0
   615
//
vb@0
   616
//      this function allocates a string and sets set fpr field of identity
vb@0
   617
//      the caller is responsible to call free() for that string or use
vb@0
   618
//      free_identity() on the struct
vb@0
   619
vb@0
   620
DYNAMIC_API PEP_STATUS generate_keypair(
vb@0
   621
        PEP_SESSION session, pEp_identity *identity
vb@0
   622
    );
vb@0
   623
vb@0
   624
vb@0
   625
// delete_keypair() - delete a public key or a key pair from the key ring
vb@0
   626
//
vb@0
   627
//  parameters:
vb@0
   628
//      session (in)            session handle
vb@0
   629
//      fpr (in)                C string with key id or fingerprint of the
vb@0
   630
//                              public key
vb@0
   631
//
vb@0
   632
//  return value:
vb@0
   633
//      PEP_STATUS_OK = 0       key was successfully deleted
vb@0
   634
//      PEP_KEY_NOT_FOUND       key not found
vb@0
   635
//      PEP_ILLEGAL_VALUE       not a valid key id or fingerprint
vb@0
   636
//      PEP_KEY_HAS_AMBIG_NAME  fpr does not uniquely identify a key
vb@0
   637
//      PEP_OUT_OF_MEMORY       out of memory
vb@0
   638
vb@0
   639
DYNAMIC_API PEP_STATUS delete_keypair(PEP_SESSION session, const char *fpr);
vb@0
   640
vb@0
   641
vb@0
   642
// import_key() - import key from data
vb@0
   643
//
vb@0
   644
//  parameters:
vb@0
   645
//      session (in)            session handle
vb@0
   646
//      key_data (in)           key data, i.e. ASCII armored OpenPGP key
vb@0
   647
//      size (in)               amount of data to handle
Edouard@772
   648
//      private_keys (out)      list of private keys that have been imported
vb@0
   649
//
vb@0
   650
//  return value:
vb@0
   651
//      PEP_STATUS_OK = 0       key was successfully imported
vb@0
   652
//      PEP_OUT_OF_MEMORY       out of memory
vb@0
   653
//      PEP_ILLEGAL_VALUE       there is no key data to import
Edouard@772
   654
//
Edouard@772
   655
//  caveat:
Edouard@772
   656
//      private_keys goes to the ownership of the caller
Edouard@772
   657
//      private_keys can be left NULL, it is then ignored
vb@0
   658
Edouard@728
   659
DYNAMIC_API PEP_STATUS import_key(
Edouard@728
   660
        PEP_SESSION session,
Edouard@728
   661
        const char *key_data,
Edouard@728
   662
        size_t size,
Edouard@728
   663
        identity_list **private_keys
Edouard@728
   664
    );
vb@0
   665
vb@0
   666
vb@0
   667
// export_key() - export ascii armored key
vb@0
   668
//
vb@0
   669
//  parameters:
vb@0
   670
//      session (in)            session handle
vb@0
   671
//      fpr (in)                key id or fingerprint of key
vb@0
   672
//      key_data (out)          ASCII armored OpenPGP key
roker@529
   673
//      size (out)              amount of data to handle
vb@0
   674
//
vb@0
   675
//  return value:
vb@0
   676
//      PEP_STATUS_OK = 0       key was successfully exported
vb@0
   677
//      PEP_OUT_OF_MEMORY       out of memory
vb@0
   678
//      PEP_KEY_NOT_FOUND       key not found
vb@0
   679
//
vb@0
   680
//  caveat:
vb@0
   681
//      the key_data goes to the ownership of the caller
vb@0
   682
//      the caller is responsible to free() it (on Windoze use pEp_free())
vb@0
   683
vb@0
   684
DYNAMIC_API PEP_STATUS export_key(
vb@0
   685
        PEP_SESSION session, const char *fpr, char **key_data, size_t *size
vb@0
   686
    );
vb@0
   687
vb@0
   688
vb@1103
   689
// export_secret_key() - export secret key ascii armored
vb@1103
   690
//
vb@1103
   691
//  parameters:
vb@1103
   692
//      session (in)            session handle
vb@1103
   693
//      fpr (in)                fingerprint of key, at least 16 hex digits
vb@1103
   694
//      key_data (out)          ASCII armored OpenPGP secret key
vb@1103
   695
//      size (out)              amount of data to handle
vb@1103
   696
//
vb@1103
   697
//  return value:
vb@1103
   698
//      PEP_STATUS_OK = 0       key was successfully exported
vb@1103
   699
//      PEP_OUT_OF_MEMORY       out of memory
vb@1103
   700
//      PEP_KEY_NOT_FOUND       key not found
vb@1103
   701
//      PEP_CANNOT_EXPORT_KEY   cannot export secret key (i.e. it's on an HKS)
vb@1103
   702
//
vb@1103
   703
//  caveat:
vb@1103
   704
//      the key_data goes to the ownership of the caller
vb@1103
   705
//      the caller is responsible to free() it (on Windoze use pEp_free())
vb@1103
   706
//      beware of leaking secret key data - overwrite it in memory after use
vb@1103
   707
vb@1103
   708
DYNAMIC_API PEP_STATUS export_secrect_key(
vb@1103
   709
        PEP_SESSION session, const char *fpr, char **key_data, size_t *size
vb@1103
   710
    );
vb@1103
   711
vb@1103
   712
vb@0
   713
// recv_key() - update key(s) from keyserver
vb@0
   714
//
vb@0
   715
//  parameters:
vb@0
   716
//      session (in)            session handle
vb@0
   717
//      pattern (in)            key id, user id or address to search for as
vb@0
   718
//                              UTF-8 string
vb@0
   719
vb@0
   720
DYNAMIC_API PEP_STATUS recv_key(PEP_SESSION session, const char *pattern);
vb@0
   721
vb@0
   722
vb@0
   723
// find_keys() - find keys in keyring
vb@0
   724
//
vb@0
   725
//  parameters:
vb@0
   726
//      session (in)            session handle
vb@0
   727
//      pattern (in)            key id, user id or address to search for as
vb@0
   728
//                              UTF-8 string
vb@0
   729
//      keylist (out)           list of fingerprints found or NULL on error
vb@0
   730
//
vb@0
   731
//  caveat:
roker@529
   732
//        the ownerships of keylist isgoing to the caller
roker@529
   733
//        the caller must use free_stringlist() to free it
vb@0
   734
vb@0
   735
vb@0
   736
DYNAMIC_API PEP_STATUS find_keys(
vb@0
   737
        PEP_SESSION session, const char *pattern, stringlist_t **keylist
vb@0
   738
    );
vb@0
   739
vb@0
   740
// send_key() - send key(s) to keyserver
vb@0
   741
//
vb@0
   742
//  parameters:
vb@0
   743
//      session (in)            session handle
vb@0
   744
//      pattern (in)            key id, user id or address to search for as
vb@0
   745
//                              UTF-8 string
vb@0
   746
vb@0
   747
DYNAMIC_API PEP_STATUS send_key(PEP_SESSION session, const char *pattern);
vb@0
   748
vb@0
   749
vb@0
   750
// pEp_free() - free memory allocated by pEp engine
vb@0
   751
//
vb@0
   752
//  parameters:
vb@0
   753
//      p (in)                  pointer to free
vb@0
   754
//
vb@0
   755
//  The reason for this function is that heap management can be a pretty
vb@0
   756
//  complex task with Windoze. This free() version calls the free()
vb@0
   757
//  implementation of the C runtime library which was used to build pEp engine,
vb@0
   758
//  so you're using the correct heap. For more information, see:
vb@0
   759
//  <http://msdn.microsoft.com/en-us/library/windows/desktop/aa366711(v=vs.85).aspx>
vb@0
   760
vb@0
   761
DYNAMIC_API void pEp_free(void *p);
vb@0
   762
vb@8
   763
vb@8
   764
// get_trust() - get the trust level a key has for a person
vb@8
   765
//
vb@8
   766
//  parameters:
vb@8
   767
//      session (in)            session handle
vb@8
   768
//      identity (inout)        user_id and fpr to check as UTF-8 strings (in)
vb@8
   769
//                              user_id and comm_type as result (out)
vb@8
   770
//
vb@14
   771
//  this function modifies the given identity struct; the struct remains in
vb@251
   772
//  the ownership of the caller
vb@14
   773
//  if the trust level cannot be determined identity->comm_type is set
vb@14
   774
//  to PEP_ct_unknown
vb@8
   775
vb@8
   776
DYNAMIC_API PEP_STATUS get_trust(PEP_SESSION session, pEp_identity *identity);
vb@8
   777
vb@8
   778
vb@251
   779
// least_trust() - get the least known trust level for a key in the database
vb@251
   780
//
vb@251
   781
//  parameters:
vb@251
   782
//      session (in)            session handle
vb@251
   783
//      fpr (in)                fingerprint of key to check
vb@251
   784
//      comm_type (out)         least comm_type as result (out)
vb@251
   785
//
vb@251
   786
//  if the trust level cannot be determined comm_type is set to PEP_ct_unknown
vb@251
   787
vb@251
   788
DYNAMIC_API PEP_STATUS least_trust(
vb@251
   789
        PEP_SESSION session,
vb@251
   790
        const char *fpr,
vb@251
   791
        PEP_comm_type *comm_type
vb@251
   792
    );
vb@251
   793
vb@251
   794
vb@9
   795
// get_key_rating() - get the rating a bare key has
vb@9
   796
//
vb@9
   797
//  parameters:
vb@9
   798
//      session (in)            session handle
vb@9
   799
//      fpr (in)                unique identifyer for key as UTF-8 string
vb@9
   800
//      comm_type (out)         key rating
vb@10
   801
//
vb@14
   802
//  if an error occurs, *comm_type is set to PEP_ct_unknown and an error
vb@10
   803
//  is returned
vb@9
   804
vb@9
   805
DYNAMIC_API PEP_STATUS get_key_rating(
vb@14
   806
        PEP_SESSION session,
vb@14
   807
        const char *fpr,
vb@14
   808
        PEP_comm_type *comm_type
vb@9
   809
    );
vb@9
   810
vb@9
   811
vb@198
   812
// renew_key() - renew an expired key
vb@196
   813
//
vb@196
   814
//  parameters:
vb@196
   815
//      session (in)            session handle
vb@214
   816
//      fpr (in)                ID of key to renew as UTF-8 string
vb@201
   817
//      ts (in)                 timestamp when key should expire or NULL for
vb@201
   818
//                              default
vb@196
   819
vb@201
   820
DYNAMIC_API PEP_STATUS renew_key(
vb@201
   821
        PEP_SESSION session,
vb@201
   822
        const char *fpr,
vb@201
   823
        const timestamp *ts
vb@201
   824
    );
vb@196
   825
vb@196
   826
vb@224
   827
// revoke_key() - revoke a key
vb@197
   828
//
vb@197
   829
//  parameters:
vb@197
   830
//      session (in)            session handle
vb@214
   831
//      fpr (in)                ID of key to revoke as UTF-8 string
vb@211
   832
//      reason (in)             text with reason for revoke as UTF-8 string
vb@211
   833
//                              or NULL if reason unknown
vb@211
   834
//
vb@211
   835
//  caveat:
vb@211
   836
//      reason text must not include empty lines
vb@224
   837
//      this function is meant for internal use only; better use
krista@1213
   838
//      key_mistrusted() of keymanagement API
vb@197
   839
vb@211
   840
DYNAMIC_API PEP_STATUS revoke_key(
vb@211
   841
        PEP_SESSION session,
vb@211
   842
        const char *fpr,
vb@211
   843
        const char *reason
vb@211
   844
    );
vb@197
   845
vb@197
   846
vb@214
   847
// key_expired() - flags if a key is already expired
vb@214
   848
//
vb@214
   849
//  parameters:
vb@214
   850
//      session (in)            session handle
vb@214
   851
//      fpr (in)                ID of key to check as UTF-8 string
Edouard@701
   852
//      when (in)               UTC time of when should expiry be considered
vb@214
   853
//      expired (out)           flag if key expired
vb@214
   854
vb@214
   855
DYNAMIC_API PEP_STATUS key_expired(
vb@214
   856
        PEP_SESSION session,
vb@214
   857
        const char *fpr,
Edouard@701
   858
        const time_t when,
vb@214
   859
        bool *expired
vb@214
   860
    );
vb@214
   861
Edouard@694
   862
    
Edouard@694
   863
// key_revoked() - flags if a key is already revoked
Edouard@694
   864
//
Edouard@694
   865
//  parameters:
Edouard@694
   866
//      session (in)            session handle
Edouard@694
   867
//      fpr (in)                ID of key to check as UTF-8 string
Edouard@694
   868
//      revoked (out)           flag if key revoked
Edouard@694
   869
Edouard@694
   870
DYNAMIC_API PEP_STATUS key_revoked(
Edouard@694
   871
        PEP_SESSION session,
Edouard@694
   872
        const char *fpr,
Edouard@694
   873
        bool *revoked
Edouard@694
   874
    );
Edouard@694
   875
vb@214
   876
vb@450
   877
// get_crashdump_log() - get the last log messages out
vb@450
   878
//
vb@450
   879
//  parameters:
vb@450
   880
//      session (in)            session handle
vb@450
   881
//      maxlines (in)           maximum number of lines (0 for default)
vb@458
   882
//      logdata (out)           logdata as string in double quoted CSV format
vb@463
   883
//                              column1 is title
vb@463
   884
//                              column2 is entity
vb@463
   885
//                              column3 is description
vb@463
   886
//                              column4 is comment
vb@462
   887
//
vb@462
   888
//  caveat:
vb@462
   889
//      the ownership of logdata goes to the caller
vb@450
   890
vb@450
   891
DYNAMIC_API PEP_STATUS get_crashdump_log(
vb@450
   892
        PEP_SESSION session,
vb@450
   893
        int maxlines,
vb@450
   894
        char **logdata
vb@450
   895
    );
vb@450
   896
vb@450
   897
dirk@501
   898
// get_languagelist() - get the list of languages
vb@458
   899
//
vb@458
   900
//  parameters:
vb@458
   901
//      session (in)            session handle
vb@458
   902
//      languages (out)         languages as string in double quoted CSV format
vb@463
   903
//                              column 1 is the ISO 639-1 language code
vb@463
   904
//                              column 2 is the name of the language
vb@462
   905
//
vb@462
   906
//  caveat:
vb@462
   907
//      the ownership of languages goes to the caller
vb@458
   908
vb@458
   909
DYNAMIC_API PEP_STATUS get_languagelist(
vb@458
   910
        PEP_SESSION session,
vb@458
   911
        char **languages
vb@458
   912
    );
vb@458
   913
vb@458
   914
vb@458
   915
// get_phrase() - get phrase in a dedicated language through i18n
vb@458
   916
//
vb@458
   917
//  parameters:
vb@458
   918
//      session (in)            session handle
roker@529
   919
//      lang (in)               C string with ISO 639-1 language code
vb@458
   920
//      phrase_id (in)          id of phrase in i18n
vb@458
   921
//      phrase (out)            phrase as UTF-8 string
vb@462
   922
//
vb@462
   923
//  caveat:
vb@462
   924
//      the ownership of phrase goes to the caller
vb@458
   925
vb@458
   926
DYNAMIC_API PEP_STATUS get_phrase(
vb@458
   927
        PEP_SESSION session,
vb@458
   928
        const char *lang,
vb@458
   929
        int phrase_id,
vb@458
   930
        char **phrase
vb@458
   931
    );
vb@458
   932
vb@458
   933
vb@632
   934
// sequence_value() - raise the value of a named sequence and retrieve it
vb@632
   935
//
vb@632
   936
//  parameters:
vb@632
   937
//      session (in)            session handle
vb@1085
   938
//      name (inout)            name of sequence or char[37] set to {0, }
vb@1086
   939
//                              for new own sequence named as UUID
vb@1085
   940
//      value (inout)           value of sequence value to test or 0 for
vb@1085
   941
//                              getting next value
vb@1085
   942
//
vb@1085
   943
//  returns:
vb@1086
   944
//      PEP_STATUS_OK                   no error, not own sequence
vb@1086
   945
//      PEP_SEQUENCE_VIOLATED           if sequence violated
vb@1086
   946
//      PEP_CANNOT_INCREASE_SEQUENCE    if sequence cannot be increased
vb@1086
   947
//      PEP_OWN_SEQUENCE                if own sequence
vb@632
   948
vb@632
   949
DYNAMIC_API PEP_STATUS sequence_value(
vb@632
   950
        PEP_SESSION session,
vb@1085
   951
        char *name,
vb@652
   952
        int32_t *value
vb@632
   953
    );
vb@632
   954
vb@1044
   955
Edouard@694
   956
// set_revoked() - records relation between a revoked key and its replacement
Edouard@694
   957
//
Edouard@694
   958
//  parameters:
Edouard@694
   959
//      session (in)            session handle
Edouard@694
   960
//      revoked_fpr (in)        revoked fingerprint
Edouard@694
   961
//      replacement_fpr (in)    replacement key fingerprint
Edouard@694
   962
//      revocation_date (in)    revocation date
Edouard@694
   963
Edouard@693
   964
DYNAMIC_API PEP_STATUS set_revoked(
Edouard@693
   965
       PEP_SESSION session,
Edouard@693
   966
       const char *revoked_fpr,
Edouard@693
   967
       const char *replacement_fpr,
Edouard@693
   968
       const uint64_t revocation_date
Edouard@693
   969
    );
Edouard@693
   970
vb@958
   971
Edouard@694
   972
// get_revoked() - find revoked key that may have been replaced by given key, if any
Edouard@694
   973
//
Edouard@694
   974
//  parameters:
Edouard@694
   975
//      session (in)            session handle
Edouard@694
   976
//      fpr (in)                given fingerprint
Edouard@694
   977
//      revoked_fpr (out)       revoked fingerprint
Edouard@694
   978
//      revocation_date (out)   revocation date
Edouard@694
   979
    
Edouard@693
   980
DYNAMIC_API PEP_STATUS get_revoked(
Edouard@693
   981
        PEP_SESSION session,
Edouard@693
   982
        const char *fpr,
Edouard@693
   983
        char **revoked_fpr,
Edouard@693
   984
        uint64_t *revocation_date
Edouard@693
   985
    );
Edouard@693
   986
vb@632
   987
vb@958
   988
// key_created() - get creation date of a key
vb@958
   989
//
vb@958
   990
//  parameters:
vb@958
   991
//      session (in)            session handle
vb@958
   992
//      fpr (in)                fingerprint of key
vb@958
   993
//      created (out)           date of creation
vb@958
   994
vb@958
   995
PEP_STATUS key_created(
vb@958
   996
        PEP_SESSION session,
vb@958
   997
        const char *fpr,
vb@958
   998
        time_t *created
vb@958
   999
    );
vb@958
  1000
vb@958
  1001
krista@1377
  1002
// find_private_keys() - find keys in keyring
krista@1357
  1003
//
krista@1357
  1004
//  parameters:
krista@1357
  1005
//      session (in)            session handle
krista@1357
  1006
//      pattern (in)            key id, user id or address to search for as
krista@1357
  1007
//                              UTF-8 string
krista@1357
  1008
//      keylist (out)           list of fingerprints found or NULL on error
krista@1357
  1009
//
krista@1357
  1010
//  caveat:
krista@1357
  1011
//        the ownerships of keylist isgoing to the caller
krista@1357
  1012
//        the caller must use free_stringlist() to free it
krista@1357
  1013
PEP_STATUS find_private_keys(PEP_SESSION session, const char* pattern,
krista@1357
  1014
                             stringlist_t **keylist);
krista@1357
  1015
krista@1011
  1016
// get_engine_version() - returns the current version of pEpEngine (this is different
krista@1011
  1017
//                        from the pEp protocol version!)
krista@1011
  1018
//
krista@1011
  1019
//  parameters: none
krista@1011
  1020
//
krista@1011
  1021
//  return_value: const char* to the engine version string constant
krista@1011
  1022
//
krista@1011
  1023
DYNAMIC_API const char* get_engine_version();
krista@1011
  1024
krista@1307
  1025
vb@482
  1026
DYNAMIC_API PEP_STATUS reset_peptest_hack(PEP_SESSION session);
vb@482
  1027
vb@0
  1028
#ifdef __cplusplus
vb@0
  1029
}
vb@0
  1030
#endif