cryptglue.c File Reference

Wrapper around crypto functions. More...

#include "config.h"
#include <stdbool.h>
#include <stdio.h>
#include "mutt/lib.h"
#include "core/lib.h"
#include "cryptglue.h"
#include "lib.h"
#include "crypt_mod.h"
#include "config/lib.h"
#include "email/lib.h"
#include "autocrypt/lib.h"
#include "crypt_gpgme.h"
#include "globals.h"

Include dependency graph for cryptglue.c:

Go to the source code of this file.

Macros
#define	CRYPT_MOD_CALL_CHECK(identifier, func)
#define	CRYPT_MOD_CALL(identifier, func)    (*(crypto_module_lookup(APPLICATION_##identifier))->func)

Functions
void	crypt_init (void)
	Initialise the crypto backends.
void	crypt_cleanup (void)
	Clean up backend.
void	crypt_invoke_message (SecurityFlags type)
	Display an informative message.
bool	crypt_has_module_backend (SecurityFlags type)
	Is there a crypto backend for a given type?
void	crypt_pgp_void_passphrase (void)
	Wrapper for CryptModuleSpecs::void_passphrase()
bool	crypt_pgp_valid_passphrase (void)
	Wrapper for CryptModuleSpecs::valid_passphrase()
int	crypt_pgp_decrypt_mime (FILE *fp_in, FILE **fp_out, struct Body *b, struct Body **b_dec)
	Wrapper for CryptModuleSpecs::decrypt_mime()
int	crypt_pgp_application_handler (struct Body *b_email, struct State *state)
	Wrapper for CryptModuleSpecs::application_handler() - Implements handler_t -.
int	crypt_pgp_encrypted_handler (struct Body *b_email, struct State *state)
	Wrapper for CryptModuleSpecs::encrypted_handler() - Implements handler_t -.
void	crypt_pgp_invoke_getkeys (struct Address *addr)
	Wrapper for CryptModuleSpecs::pgp_invoke_getkeys()
bool	crypt_pgp_check_traditional (FILE *fp, struct Body *b, bool just_one)
	Wrapper for CryptModuleSpecs::pgp_check_traditional()
struct Body *	crypt_pgp_traditional_encryptsign (struct Body *b, SecurityFlags flags, char *keylist)
	Wrapper for CryptModuleSpecs::pgp_traditional_encryptsign()
struct Body *	crypt_pgp_make_key_attachment (void)
	Wrapper for CryptModuleSpecs::pgp_make_key_attachment()
char *	crypt_pgp_find_keys (struct AddressList *addrlist, bool oppenc_mode)
	Wrapper for CryptModuleSpecs::find_keys()
struct Body *	crypt_pgp_sign_message (struct Body *b, const struct AddressList *from)
	Wrapper for CryptModuleSpecs::sign_message()
struct Body *	crypt_pgp_encrypt_message (struct Email *e, struct Body *b, char *keylist, int sign, const struct AddressList *from)
	Wrapper for CryptModuleSpecs::pgp_encrypt_message()
void	crypt_pgp_invoke_import (const char *fname)
	Wrapper for CryptModuleSpecs::pgp_invoke_import()
int	crypt_pgp_verify_one (struct Body *b, struct State *state, const char *tempf)
	Wrapper for CryptModuleSpecs::verify_one()
SecurityFlags	crypt_pgp_send_menu (struct Email *e)
	Wrapper for CryptModuleSpecs::send_menu()
void	crypt_pgp_extract_key_from_attachment (FILE *fp, struct Body *b)
	Wrapper for CryptModuleSpecs::pgp_extract_key_from_attachment()
void	crypt_pgp_set_sender (const char *sender)
	Wrapper for CryptModuleSpecs::set_sender()
void	crypt_smime_void_passphrase (void)
	Wrapper for CryptModuleSpecs::void_passphrase()
bool	crypt_smime_valid_passphrase (void)
	Wrapper for CryptModuleSpecs::valid_passphrase()
int	crypt_smime_decrypt_mime (FILE *fp_in, FILE **fp_out, struct Body *b, struct Body **b_dec)
	Wrapper for CryptModuleSpecs::decrypt_mime()
int	crypt_smime_application_handler (struct Body *b_email, struct State *state)
	Wrapper for CryptModuleSpecs::application_handler() - Implements handler_t -.
void	crypt_smime_getkeys (struct Envelope *env)
	Wrapper for CryptModuleSpecs::smime_getkeys()
int	crypt_smime_verify_sender (struct Email *e, struct Message *msg)
	Wrapper for CryptModuleSpecs::smime_verify_sender()
char *	crypt_smime_find_keys (struct AddressList *addrlist, bool oppenc_mode)
	Wrapper for CryptModuleSpecs::find_keys()
struct Body *	crypt_smime_sign_message (struct Body *b, const struct AddressList *from)
	Wrapper for CryptModuleSpecs::sign_message()
struct Body *	crypt_smime_build_smime_entity (struct Body *b, char *certlist)
	Wrapper for CryptModuleSpecs::smime_build_smime_entity()
void	crypt_smime_invoke_import (const char *infile, const char *mailbox)
	Wrapper for CryptModuleSpecs::smime_invoke_import()
int	crypt_smime_verify_one (struct Body *b, struct State *state, const char *tempf)
	Wrapper for CryptModuleSpecs::verify_one()
SecurityFlags	crypt_smime_send_menu (struct Email *e)
	Wrapper for CryptModuleSpecs::send_menu()
void	crypt_smime_set_sender (const char *sender)
	Wrapper for CryptModuleSpecs::set_sender()

Variables
const struct CryptModuleSpecs	CryptModPgpClassic
	CLI PGP - Implements CryptModuleSpecs -.
const struct CryptModuleSpecs	CryptModSmimeClassic
	CLI SMIME - Implements CryptModuleSpecs -.
const struct CryptModuleSpecs	CryptModPgpGpgme
	GPGME PGP - Implements CryptModuleSpecs -.
const struct CryptModuleSpecs	CryptModSmimeGpgme
	GPGME SMIME - Implements CryptModuleSpecs -.

Detailed Description

Wrapper around crypto functions.

Authors

• Richard Russon
• Pietro Cerutti

Copyright

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file cryptglue.c.

Macro Definition Documentation

CRYPT_MOD_CALL_CHECK

#define CRYPT_MOD_CALL_CHECK	(		identifier,
			func
	)

Value:

  (crypto_module_lookup(APPLICATION_##identifier) &&                           \
   (crypto_module_lookup(APPLICATION_##identifier))->func)

Definition at line 79 of file cryptglue.c.

CRYPT_MOD_CALL

#define CRYPT_MOD_CALL	(		identifier,
			func
	)		(*(crypto_module_lookup(APPLICATION_##identifier))->func)

Definition at line 85 of file cryptglue.c.

Function Documentation

crypt_init()

void crypt_init

(

void

)

Initialise the crypto backends.

This calls CryptModuleSpecs::init()

Definition at line 93 of file cryptglue.c.

{
#ifdef CRYPT_BACKEND_GPGME
  const bool c_crypt_use_gpgme = cs_subset_bool(NeoMutt->sub, "crypt_use_gpgme");
#endif
#ifdef CRYPT_BACKEND_CLASSIC_PGP
  if (
#ifdef CRYPT_BACKEND_GPGME
      (!c_crypt_use_gpgme)
#else
      1
#endif
  )
    crypto_module_register(&CryptModPgpClassic);
#endif
 
#ifdef CRYPT_BACKEND_CLASSIC_SMIME
  if (
#ifdef CRYPT_BACKEND_GPGME
      (!c_crypt_use_gpgme)
#else
      1
#endif
  )
    crypto_module_register(&CryptModSmimeClassic);
#endif
 
#ifdef CRYPT_BACKEND_GPGME
  if (c_crypt_use_gpgme)
  {
    crypto_module_register(&CryptModPgpGpgme);
    crypto_module_register(&CryptModSmimeGpgme);
  }
#endif
 
#if defined(CRYPT_BACKEND_CLASSIC_PGP) ||                                      \
    defined(CRYPT_BACKEND_CLASSIC_SMIME) || defined(CRYPT_BACKEND_GPGME)
  if (CRYPT_MOD_CALL_CHECK(PGP, init))
    CRYPT_MOD_CALL(PGP, init)();
 
  if (CRYPT_MOD_CALL_CHECK(SMIME, init))
    CRYPT_MOD_CALL(SMIME, init)();
#endif
}

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crypt_cleanup()

void crypt_cleanup

(

void

)

Clean up backend.

Definition at line 141 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, cleanup))
    (CRYPT_MOD_CALL(PGP, cleanup))();
 
  if (CRYPT_MOD_CALL_CHECK(SMIME, cleanup))
    (CRYPT_MOD_CALL(SMIME, cleanup))();
}

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crypt_invoke_message()

void crypt_invoke_message

(

SecurityFlags

type

)

Display an informative message.

Parameters

type	Crypto type, see SecurityFlags

Show a message that a backend will be invoked.

Definition at line 156 of file cryptglue.c.

{
  if (((WithCrypto & APPLICATION_PGP) != 0) && (type & APPLICATION_PGP))
    mutt_message(_("Invoking PGP..."));
  else if (((WithCrypto & APPLICATION_SMIME) != 0) && (type & APPLICATION_SMIME))
    mutt_message(_("Invoking S/MIME..."));
}

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crypt_has_module_backend()

bool crypt_has_module_backend

(

SecurityFlags

type

)

Is there a crypto backend for a given type?

Parameters

type	Crypto type, see SecurityFlags

Return values

true	Backend is present
false	Backend is not present

Definition at line 170 of file cryptglue.c.

{
  if (((WithCrypto & APPLICATION_PGP) != 0) && (type & APPLICATION_PGP) &&
      crypto_module_lookup(APPLICATION_PGP))
  {
    return true;
  }
 
  if (((WithCrypto & APPLICATION_SMIME) != 0) && (type & APPLICATION_SMIME) &&
      crypto_module_lookup(APPLICATION_SMIME))
  {
    return true;
  }
 
  return false;
}

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crypt_pgp_void_passphrase()

void crypt_pgp_void_passphrase

(

void

)

Wrapper for CryptModuleSpecs::void_passphrase()

Definition at line 190 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, void_passphrase))
    CRYPT_MOD_CALL(PGP, void_passphrase)();
}

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crypt_pgp_valid_passphrase()

bool crypt_pgp_valid_passphrase

(

void

)

Wrapper for CryptModuleSpecs::valid_passphrase()

Definition at line 199 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, valid_passphrase))
    return CRYPT_MOD_CALL(PGP, valid_passphrase)();
 
  return false;
}

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crypt_pgp_decrypt_mime()

int crypt_pgp_decrypt_mime	(	FILE *	fp_in,
		FILE **	fp_out,
		struct Body *	b,
		struct Body **	b_dec
	)

Wrapper for CryptModuleSpecs::decrypt_mime()

Definition at line 210 of file cryptglue.c.

{
#ifdef USE_AUTOCRYPT
  const bool c_autocrypt = cs_subset_bool(NeoMutt->sub, "autocrypt");
  if (c_autocrypt)
  {
    OptAutocryptGpgme = true;
    int result = pgp_gpgme_decrypt_mime(fp_in, fp_out, b, b_dec);
    OptAutocryptGpgme = false;
    if (result == 0)
    {
      b->is_autocrypt = true;
      return result;
    }
  }
#endif
 
  if (CRYPT_MOD_CALL_CHECK(PGP, decrypt_mime))
    return CRYPT_MOD_CALL(PGP, decrypt_mime)(fp_in, fp_out, b, b_dec);
 
  return -1;
}

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crypt_pgp_invoke_getkeys()

void crypt_pgp_invoke_getkeys

(

struct Address *

addr

)

Wrapper for CryptModuleSpecs::pgp_invoke_getkeys()

Definition at line 273 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_invoke_getkeys))
    CRYPT_MOD_CALL(PGP, pgp_invoke_getkeys)(addr);
}

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crypt_pgp_check_traditional()

bool crypt_pgp_check_traditional	(	FILE *	fp,
		struct Body *	b,
		bool	just_one
	)

Wrapper for CryptModuleSpecs::pgp_check_traditional()

Definition at line 282 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_check_traditional))
    return CRYPT_MOD_CALL(PGP, pgp_check_traditional)(fp, b, just_one);
 
  return false;
}

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crypt_pgp_traditional_encryptsign()

struct Body * crypt_pgp_traditional_encryptsign	(	struct Body *	b,
		SecurityFlags	flags,
		char *	keylist
	)

Wrapper for CryptModuleSpecs::pgp_traditional_encryptsign()

Definition at line 293 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_traditional_encryptsign))
    return CRYPT_MOD_CALL(PGP, pgp_traditional_encryptsign)(b, flags, keylist);
 
  return NULL;
}

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crypt_pgp_make_key_attachment()

struct Body * crypt_pgp_make_key_attachment

(

void

)

Wrapper for CryptModuleSpecs::pgp_make_key_attachment()

Definition at line 304 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_make_key_attachment))
    return CRYPT_MOD_CALL(PGP, pgp_make_key_attachment)();
 
  return NULL;
}

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crypt_pgp_find_keys()

char * crypt_pgp_find_keys	(	struct AddressList *	addrlist,
		bool	oppenc_mode
	)

Wrapper for CryptModuleSpecs::find_keys()

Definition at line 315 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, find_keys))
    return CRYPT_MOD_CALL(PGP, find_keys)(addrlist, oppenc_mode);
 
  return NULL;
}

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crypt_pgp_sign_message()

struct Body * crypt_pgp_sign_message	(	struct Body *	b,
		const struct AddressList *	from
	)

Wrapper for CryptModuleSpecs::sign_message()

Definition at line 326 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, sign_message))
    return CRYPT_MOD_CALL(PGP, sign_message)(b, from);
 
  return NULL;
}

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crypt_pgp_encrypt_message()

struct Body * crypt_pgp_encrypt_message	(	struct Email *	e,
		struct Body *	b,
		char *	keylist,
		int	sign,
		const struct AddressList *	from
	)

Wrapper for CryptModuleSpecs::pgp_encrypt_message()

Definition at line 337 of file cryptglue.c.

{
#ifdef USE_AUTOCRYPT
  if (e->security & SEC_AUTOCRYPT)
  {
    if (mutt_autocrypt_set_sign_as_default_key(e))
      return NULL;
 
    OptAutocryptGpgme = true;
    struct Body *result = pgp_gpgme_encrypt_message(b, keylist, sign, from);
    OptAutocryptGpgme = false;
 
    return result;
  }
#endif
 
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_encrypt_message))
    return CRYPT_MOD_CALL(PGP, pgp_encrypt_message)(b, keylist, sign, from);
 
  return NULL;
}

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crypt_pgp_invoke_import()

void crypt_pgp_invoke_import

(

const char *

fname

)

Wrapper for CryptModuleSpecs::pgp_invoke_import()

Definition at line 363 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_invoke_import))
    CRYPT_MOD_CALL(PGP, pgp_invoke_import)(fname);
}

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crypt_pgp_verify_one()

int crypt_pgp_verify_one	(	struct Body *	b,
		struct State *	state,
		const char *	tempf
	)

Wrapper for CryptModuleSpecs::verify_one()

Definition at line 372 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, verify_one))
    return CRYPT_MOD_CALL(PGP, verify_one)(b, state, tempf);
 
  return -1;
}

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crypt_pgp_send_menu()

SecurityFlags crypt_pgp_send_menu

(

struct Email *

e

)

Wrapper for CryptModuleSpecs::send_menu()

Definition at line 383 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, send_menu))
    return CRYPT_MOD_CALL(PGP, send_menu)(e);
 
  return 0;
}

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crypt_pgp_extract_key_from_attachment()

void crypt_pgp_extract_key_from_attachment	(	FILE *	fp,
		struct Body *	b
	)

Wrapper for CryptModuleSpecs::pgp_extract_key_from_attachment()

Definition at line 394 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, pgp_extract_key_from_attachment))
    CRYPT_MOD_CALL(PGP, pgp_extract_key_from_attachment)(fp, b);
}

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crypt_pgp_set_sender()

void crypt_pgp_set_sender

(

const char *

sender

)

Wrapper for CryptModuleSpecs::set_sender()

Definition at line 403 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(PGP, set_sender))
    CRYPT_MOD_CALL(PGP, set_sender)(sender);
}

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crypt_smime_void_passphrase()

void crypt_smime_void_passphrase

(

void

)

Wrapper for CryptModuleSpecs::void_passphrase()

Definition at line 412 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, void_passphrase))
    CRYPT_MOD_CALL(SMIME, void_passphrase)();
}

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crypt_smime_valid_passphrase()

bool crypt_smime_valid_passphrase

(

void

)

Wrapper for CryptModuleSpecs::valid_passphrase()

Definition at line 421 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, valid_passphrase))
    return CRYPT_MOD_CALL(SMIME, valid_passphrase)();
 
  return false;
}

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crypt_smime_decrypt_mime()

int crypt_smime_decrypt_mime	(	FILE *	fp_in,
		FILE **	fp_out,
		struct Body *	b,
		struct Body **	b_dec
	)

Wrapper for CryptModuleSpecs::decrypt_mime()

Definition at line 432 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, decrypt_mime))
    return CRYPT_MOD_CALL(SMIME, decrypt_mime)(fp_in, fp_out, b, b_dec);
 
  return -1;
}

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crypt_smime_getkeys()

void crypt_smime_getkeys

(

struct Envelope *

env

)

Wrapper for CryptModuleSpecs::smime_getkeys()

Definition at line 454 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, smime_getkeys))
    CRYPT_MOD_CALL(SMIME, smime_getkeys)(env);
}

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crypt_smime_verify_sender()

int crypt_smime_verify_sender	(	struct Email *	e,
		struct Message *	msg
	)

Wrapper for CryptModuleSpecs::smime_verify_sender()

Definition at line 463 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, smime_verify_sender))
    return CRYPT_MOD_CALL(SMIME, smime_verify_sender)(e, msg);
 
  return 1;
}

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crypt_smime_find_keys()

char * crypt_smime_find_keys	(	struct AddressList *	addrlist,
		bool	oppenc_mode
	)

Wrapper for CryptModuleSpecs::find_keys()

Definition at line 474 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, find_keys))
    return CRYPT_MOD_CALL(SMIME, find_keys)(addrlist, oppenc_mode);
 
  return NULL;
}

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crypt_smime_sign_message()

struct Body * crypt_smime_sign_message	(	struct Body *	b,
		const struct AddressList *	from
	)

Wrapper for CryptModuleSpecs::sign_message()

Definition at line 485 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, sign_message))
    return CRYPT_MOD_CALL(SMIME, sign_message)(b, from);
 
  return NULL;
}

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crypt_smime_build_smime_entity()

struct Body * crypt_smime_build_smime_entity	(	struct Body *	b,
		char *	certlist
	)

Wrapper for CryptModuleSpecs::smime_build_smime_entity()

Definition at line 496 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, smime_build_smime_entity))
    return CRYPT_MOD_CALL(SMIME, smime_build_smime_entity)(b, certlist);
 
  return NULL;
}

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crypt_smime_invoke_import()

void crypt_smime_invoke_import	(	const char *	infile,
		const char *	mailbox
	)

Wrapper for CryptModuleSpecs::smime_invoke_import()

Definition at line 507 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, smime_invoke_import))
    CRYPT_MOD_CALL(SMIME, smime_invoke_import)(infile, mailbox);
}

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crypt_smime_verify_one()

int crypt_smime_verify_one	(	struct Body *	b,
		struct State *	state,
		const char *	tempf
	)

Wrapper for CryptModuleSpecs::verify_one()

Definition at line 516 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, verify_one))
    return CRYPT_MOD_CALL(SMIME, verify_one)(b, state, tempf);
 
  return -1;
}

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crypt_smime_send_menu()

SecurityFlags crypt_smime_send_menu

(

struct Email *

e

)

Wrapper for CryptModuleSpecs::send_menu()

Definition at line 527 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, send_menu))
    return CRYPT_MOD_CALL(SMIME, send_menu)(e);
 
  return 0;
}

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crypt_smime_set_sender()

void crypt_smime_set_sender

(

const char *

sender

)

Wrapper for CryptModuleSpecs::set_sender()

Definition at line 538 of file cryptglue.c.

{
  if (CRYPT_MOD_CALL_CHECK(SMIME, set_sender))
    CRYPT_MOD_CALL(SMIME, set_sender)(sender);
}

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