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g13: Move 'call-gpg.c' to common.

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* common/Makefile.am (common_sources): Add files.
* g13/call-gpg.c: Move to 'common' and adapt slightly.  Add a
parameter to let callees override the gpg program to execute.
* g13/call-gpg.h: Likewise.
* g13/Makefile.am (g13_SOURCES): Drop files.
* g13/create.c (encrypt_keyblob): Hand in the gpg program to execute.
* g13/mount.c (decrypt_keyblob): Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
This commit is contained in:
Justus Winter 2015-11-24 13:40:56 +01:00
parent e9c16fee25
commit ba1a5cc17d
6 changed files with 41 additions and 39 deletions
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3
common/Makefile.am
View File

@ -86,7 +86,8 @@ common_sources = \
agent-opt.c \
helpfile.c \
mkdir_p.c mkdir_p.h \
strlist.c strlist.h
strlist.c strlist.h \
call-gpg.c call-gpg.h
if HAVE_W32_SYSTEM
common_sources += w32-reg.c w32-afunix.c w32-afunix.h

59
g13/call-gpg.c → common/call-gpg.c
View File

@ -18,27 +18,29 @@
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include <assert.h>
#include <npth.h>
#include "g13.h"
#include <assuan.h>
#include "i18n.h"
#include "call-gpg.h"
#include "utils.h"
#include "../common/exechelp.h"
#include <errno.h>
#include <npth.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "call-gpg.h"
#include "exechelp.h"
#include "i18n.h"
#include "logging.h"
#include "membuf.h"
#include "util.h"
/* Fire up a new GPG. Handle the server's initial greeting. Returns
0 on success and stores the assuan context at R_CTX. */
static gpg_error_t
start_gpg (ctrl_t ctrl, int input_fd, int output_fd, assuan_context_t *r_ctx)
start_gpg (ctrl_t ctrl, const char *gpg_program,
int input_fd, int output_fd, assuan_context_t *r_ctx)
{
gpg_error_t err;
assuan_context_t ctx = NULL;
@ -60,15 +62,12 @@ start_gpg (ctrl_t ctrl, int input_fd, int output_fd, assuan_context_t *r_ctx)
}
/* The first time we are used, intialize the gpg_program variable. */
if ( !opt.gpg_program || !*opt.gpg_program )
opt.gpg_program = gnupg_module_name (GNUPG_MODULE_NAME_GPG);
if (opt.verbose)
log_info (_("no running gpg - starting '%s'\n"), opt.gpg_program);
if ( !gpg_program || !*gpg_program )
gpg_program = gnupg_module_name (GNUPG_MODULE_NAME_GPG);
/* Compute argv[0]. */
if ( !(pgmname = strrchr (opt.gpg_program, '/')))
pgmname = opt.gpg_program;
if ( !(pgmname = strrchr (gpg_program, '/')))
pgmname = gpg_program;
else
pgmname++;
@ -82,8 +81,6 @@ start_gpg (ctrl_t ctrl, int input_fd, int output_fd, assuan_context_t *r_ctx)
i = 0;
argv[i++] = pgmname;
argv[i++] = "--server";
if ((opt.debug & 1024))
argv[i++] = "--debug=1024";
argv[i++] = "-z";
argv[i++] = "0";
argv[i++] = "--trust-model";
@ -101,7 +98,7 @@ start_gpg (ctrl_t ctrl, int input_fd, int output_fd, assuan_context_t *r_ctx)
no_close_list[i] = -1;
/* Connect to GPG and perform initial handshaking. */
err = assuan_pipe_connect (ctx, opt.gpg_program, argv, no_close_list,
err = assuan_pipe_connect (ctx, gpg_program, argv, no_close_list,
NULL, NULL, 0);
if (err)
{
@ -135,9 +132,6 @@ start_gpg (ctrl_t ctrl, int input_fd, int output_fd, assuan_context_t *r_ctx)
}
*r_ctx = ctx;
if (DBG_IPC)
log_debug ("connection to GPG established\n");
return 0;
}
@ -328,8 +322,10 @@ start_reader (int fd, membuf_t *mb, npth_t *r_thread, gpg_error_t *err_addr)
*/
gpg_error_t
gpg_encrypt_blob (ctrl_t ctrl, const void *plain, size_t plainlen,
strlist_t keys, void **r_ciph, size_t *r_ciphlen)
gpg_encrypt_blob (ctrl_t ctrl, const char *gpg_program,
const void *plain, size_t plainlen,
strlist_t keys,
void **r_ciph, size_t *r_ciphlen)
{
gpg_error_t err;
assuan_context_t ctx = NULL;
@ -360,7 +356,7 @@ gpg_encrypt_blob (ctrl_t ctrl, const void *plain, size_t plainlen,
}
/* Start GPG and send the INPUT and OUTPUT commands. */
err = start_gpg (ctrl, outbound_fds[0], inbound_fds[1], &ctx);
err = start_gpg (ctrl, gpg_program, outbound_fds[0], inbound_fds[1], &ctx);
if (err)
goto leave;
close (outbound_fds[0]); outbound_fds[0] = -1;
@ -471,7 +467,8 @@ gpg_encrypt_blob (ctrl_t ctrl, const void *plain, size_t plainlen,
*/
gpg_error_t
gpg_decrypt_blob (ctrl_t ctrl, const void *ciph, size_t ciphlen,
gpg_decrypt_blob (ctrl_t ctrl, const char *gpg_program,
const void *ciph, size_t ciphlen,
void **r_plain, size_t *r_plainlen)
{
gpg_error_t err;
@ -501,7 +498,7 @@ gpg_decrypt_blob (ctrl_t ctrl, const void *ciph, size_t ciphlen,
}
/* Start GPG and send the INPUT and OUTPUT commands. */
err = start_gpg (ctrl, outbound_fds[0], inbound_fds[1], &ctx);
err = start_gpg (ctrl, gpg_program, outbound_fds[0], inbound_fds[1], &ctx);
if (err)
goto leave;
close (outbound_fds[0]); outbound_fds[0] = -1;

9
g13/call-gpg.h → common/call-gpg.h
View File

@ -20,11 +20,16 @@
#ifndef G13_CALL_GPG_H
#define G13_CALL_GPG_H
gpg_error_t gpg_encrypt_blob (ctrl_t ctrl,
#include "strlist.h"
typedef struct server_control_s *ctrl_t;
gpg_error_t gpg_encrypt_blob (ctrl_t ctrl, const char *gpg_program,
const void *plain, size_t plainlen,
strlist_t keys,
void **r_ciph, size_t *r_ciphlen);
gpg_error_t gpg_decrypt_blob (ctrl_t ctrl, const void *ciph, size_t ciphlen,
gpg_error_t gpg_decrypt_blob (ctrl_t ctrl, const char *gpg_program,
const void *ciph, size_t ciphlen,
void **r_plain, size_t *r_plainlen);

1
g13/Makefile.am
View File

@ -37,7 +37,6 @@ g13_SOURCES = \
create.c create.h \
mount.c mount.h \
mountinfo.c mountinfo.h \
call-gpg.c call-gpg.h \
runner.c runner.h \
backend.c backend.h \
be-encfs.c be-encfs.h \

4
g13/create.c
View File

@ -33,7 +33,7 @@
#include "keyblob.h"
#include "backend.h"
#include "utils.h"
#include "call-gpg.h"
#include "../common/call-gpg.h"
/* Create a new blob with all the session keys and other meta
information which are to be stored encrypted in the crypto
@ -111,7 +111,7 @@ encrypt_keyblob (ctrl_t ctrl, void *keyblob, size_t keybloblen,
gpg_error_t err;
/* FIXME: For now we only implement OpenPGP. */
err = gpg_encrypt_blob (ctrl, keyblob, keybloblen, keys,
err = gpg_encrypt_blob (ctrl, opt.gpg_program, keyblob, keybloblen, keys,
r_encblob, r_encbloblen);
return err;

4
g13/mount.c
View File

@ -34,7 +34,7 @@
#include "backend.h"
#include "utils.h"
#include "../common/sysutils.h"
#include "call-gpg.h"
#include "../common/call-gpg.h"
#include "mountinfo.h"
#include "runner.h"
#include "host2net.h"
@ -202,7 +202,7 @@ decrypt_keyblob (ctrl_t ctrl, const void *enckeyblob, size_t enckeybloblen,
gpg_error_t err;
/* FIXME: For now we only implement OpenPGP. */
err = gpg_decrypt_blob (ctrl, enckeyblob, enckeybloblen,
err = gpg_decrypt_blob (ctrl, opt.gpg_program, enckeyblob, enckeybloblen,
r_keyblob, r_keybloblen);
return err;