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2016-03-02common: Consolidate Assuan server argument handling.Justus Winter1-32/+1
* common/Makefile.am (common_sources): Add new files. * common/server-help.c: New file. * common/server-help.h: Likewise. * agent/command.c: Drop argument handling primitives in favor of using the consolidated ones. * dirmngr/server.c: Likewise. * g10/server.c: Likewise. * g13/server.c: Likewise. * scd/command.c: Likewise. * sm/server.c: Likewise. Signed-off-by: Justus Winter <[email protected]>
2016-02-23g13: Add commands --suspend and --remove.Werner Koch1-1/+54
* g13/g13.c (aSuspend, aResume): New. (opts): Add commands --suspend and --resume. (main): Implement dummy command aUmount. Implement commands aResume and aSuspend. * g13/sh-cmd.c (cmd_suspend): New. (cmd_resume): New. (register_commands): Add commands RESUME and SUSPEND. * g13/server.c (cmd_suspend): New. (cmd_resume): New. (register_commands): Add commands RESUME and SUSPEND. * g13/be-dmcrypt.c (be_dmcrypt_suspend_container): New. (be_dmcrypt_resume_container): New. * g13/backend.c (be_suspend_container): New. (be_resume_container): New. * g13/suspend.c, g13/suspend.h: New. * g13/mount.c (parse_header, read_keyblob_prefix, read_keyblob) (decrypt_keyblob, g13_is_container): Move to ... * g13/keyblob.c: new file. (keyblob_read): Rename to g13_keyblob_read and make global. (keyblob_decrypt): Rename to g13_keyblob_decrypt and make global. * g13/sh-dmcrypt.c (check_blockdev): Add arg expect_busy. (sh_dmcrypt_suspend_container): New. (sh_dmcrypt_resume_container): New. * g13/call-syshelp.c (call_syshelp_run_suspend): New. (call_syshelp_run_resume): New. -- The --suspend command can be used before a hibernate operation to make the encrypted partition inaccessible and wipe the key from the memory. Before --suspend is called a sync(1) should be run to make sure that their are no dirty buffers (dmsetup, as called by g13, actually does this for you but it does not harm to do it anyway. After the partition has been suspended a echo 3 >proc/sys/vm/drop_caches required to flush all caches which may still have content from the encrypted partition. The --resume command reverses the effect of the suspend but to do this it needs to decrypt again. Now, if the .gnupg directory lives on the encrypted partition this will be problematic because due to the suspend all processes accessing data on the encrypted partition will be put into an uninterruptible sleep (ps(1) shows a state of 'D'). This needs to be avoided. A workaround is to have a separate GnuPG home directory (say, "~/.gnupg-fallback") with only the public keys required to decrypt the partition along with a properly setup conf files. A GNUPGHOME=$(pwd)/.gnupg-fallback g13 --resume should then be able to resume the encrypted partition using the private key stored on a smartcard. The implementation is pretty basic right now but useful to me. Signed-off-by: Werner Koch <[email protected]>
2016-02-13g13: Second chunk of code to support dm-crypt.Werner Koch1-6/+4
* g13/be-dmcrypt.c, g13/be-dmcrypt.h: New. * g13/Makefile.am (g13_SOURCES): Add them. * g13/backend.c: Include be-dmcrypt.h and call-syshelp.h. (no_such_backend): Rename to _no_such_backend and provide replacement macro. (be_is_supported_conttype): Support DM-Crypt. (be_take_lock_for_create): Call set_segvice for DM-Crypt. (be_create_new_keys): Make it a dummy for DM-Crypt. (be_create_container): Call be_dmcrypt_create_container. (be_mount_container): call be_dmcrypt_mount_container. * g13/g13-syshelp.c (main): Enable verbose mode. * g13/g13tuple.c (get_tupledesc_data): New. * g13/g13tuple.h (unref_tupledesc): New. * g13/g13.h (server_control_): Add field "recipients". * g13/g13.c (main): Fix setting of recipients via cmdline. (g13_deinit_default_ctrl): Release recipients list. (g13_request_shutdown): New. Replace all direct update of shutdown_pending by calls this function. * g13/server.c (server_local_s): Remove field recipients which is now part of CTRL. (reset_notify, cmd_recipient, cmd_create): Adjust for this change. * g13/create.c (encrypt_keyblob): Rename to g13_encrypt_keyblob. (g13_create_container): Support DM-Crypt. * g13/mount.c (parse_header): Allow for meta data copies. (g13_mount_container): Support DM-Crypt. * g13/sh-cmd.c (cmd_create): Make it work. (cmd_mount): New. * g13/sh-dmcrypt.c (sh_dmcrypt_create_container): Make it work. (sh_dmcrypt_mount_container): New. -- With this patch we can now create an encrypted partition and partly mount it (i.e. setup keys and create the mapped device). We do not yet create a file system or mount that file system Signed-off-by: Werner Koch <[email protected]>
2014-10-03Remove support for the GPG_AGENT_INFO envvar.Werner Koch1-3/+0
* agent/agent.h (opt): Remove field use_standard_socket. * agent/command.c (cmd_killagent): Always allow killing. * agent/gpg-agent.c (main): Turn --{no,}use-standard-socket and --write-env-file into dummy options. Always return true for --use-standard-socket-p. Do not print the GPG_AGENT_INFO envvar setting or set that envvar. (create_socket_name): Simplify by removing non standard socket support. (check_for_running_agent): Ditto. * common/asshelp.c (start_new_gpg_agent): Remove GPG_AGENT_INFO use. * common/simple-pwquery.c (agent_open): Ditto. * configure.ac (GPG_AGENT_INFO_NAME): Remove. * g10/server.c (gpg_server): Do not print the AgentInfo comment. * g13/server.c (g13_server): Ditto. * sm/server.c (gpgsm_server): Ditto. * tools/gpgconf.c (main): Simplify by removing non standard socket support. -- The indented fix to allow using a different socket than the one in the gnupg home directory is to change Libassuan to check whether the socket files exists as a regualr file with a special keyword to redirect to another socket file name.
2013-11-18Make use of the *_NAME etc macros.Werner Koch1-1/+1
Replace hardwired strings at many places with new macros from config.h and use the new strusage macro replacement feature. * common/asshelp.c (lock_spawning) [W32]: Change the names of the spawn sentinels. * agent/command.c (cmd_import_key): Use asprintf to create the prompt.
2011-02-04Nuked almost all trailing white space.post-nuke-of-trailing-wsWerner Koch1-22/+20
We better do this once and for all instead of cluttering all future commits with diffs of trailing white spaces. In the majority of cases blank or single lines are affected and thus this change won't disturb a git blame too much. For future commits the pre-commit scripts checks that this won't happen again.
2010-03-11Use a custom log handler for libassuan.Werner Koch1-3/+0
2009-11-25agent/Marcus Brinkmann1-3/+3
2009-11-25 Marcus Brinkmann <[email protected]> * command.c (start_command_handler): Use assuan_fd_t and assuan_fdopen on fds. scd/ 2009-11-25 Marcus Brinkmann <[email protected]> * command.c (scd_command_handler): Use assuan_fd_t and assuan_fdopen on fds. sm/ 2009-11-25 Marcus Brinkmann <[email protected]> * server.c (gpgsm_server): Use assuan_fd_t and assuan_fdopen on fds. g10/ 2009-11-25 Marcus Brinkmann <[email protected]> * server.c (gpg_server): Use assuan_fd_t and assuan_fdopen on fds.
2009-11-04Add help strings for all commands.Werner Koch1-56/+44
2009-11-04Adjust for assuan_register_command change.Werner Koch1-2/+13
2009-11-02agent/Marcus Brinkmann1-4/+7
2009-11-02 Marcus Brinkmann <[email protected]> * command.c (reset_notify): Take LINE arg and return error. (register_commands): Use assuan_handler_t type. common/ 2009-11-02 Marcus Brinkmann <[email protected]> * get-passphrase.c (default_inq_cb, membuf_data_cb): Change return type to gpg_error_t. g10/ 2009-11-02 Marcus Brinkmann <[email protected]> * server.c (reset_notify, input_notify, output_notify): Update to new assuan interface. (register_commands): Use assuan_handler_t. scd/ 2009-11-02 Marcus Brinkmann <[email protected]> * command.c (reset_notify): Take LINE arg and return error. (register_commands): Use assuan_handler_t type. sm/ 2009-11-02 Marcus Brinkmann <[email protected]> * server.c (reset_notify, input_notify, output_notify): Update to new assuan interface. (register_commands): Use assuan_handler_t. * call-agent.c (membuf_data_cb, default_inq_cb) (inq_ciphertext_cb, scd_serialno_status_cb) (scd_keypairinfo_status_cb, istrusted_status_cb) (learn_status_cb, learn_cb, keyinfo_status_cb): Return gpg_error_t.
2009-10-28[scd] Memory leak fix.Werner Koch1-91/+76
[g13] Send MOUNTPOINT status line
2009-10-19[g13] Add RECIPEINT and CREATE command.Werner Koch1-16/+50
[sm] Chnage --include-certs default
2009-10-17Removed audit.h cruft which forced us to link against libksba.Werner Koch1-6/+0
There is no need for an audit file.
2009-10-15Reworked the server commands.Werner Koch1-141/+176
Track mounts. --create does now work as expected.
2009-10-14mount does now work in server and standalone mode.Werner Koch1-0/+709
Implemented a signal handler.