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ssh: Add support for Putty.

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* agent/gpg-agent.c [W32]: Include Several Windows header.
(opts): Change help text for enable-ssh-support.
(opts, main): Add option --enable-putty-support
(putty_support, PUTTY_IPC_MAGIC, PUTTY_IPC_MAXLEN): New for W32.
(agent_init_default_ctrl): Add and asssert call.
(putty_message_proc, putty_message_thread): New.
(handle_connections) [W32]: Start putty message thread.
* common/sysutils.c (w32_get_user_sid): New for W32 only
* tools/gpgconf-comp.c (gc_options_gpg_agent): Add
--enable-ssh-support and --enable-putty-support.  Make the
configuration group visible at basic level.
* agent/command-ssh.c (serve_mmapped_ssh_request): New for W32 only.
--

This patch enables support for Putty.  It has been tested with Putty
0.62 using an Unix created ssh key copied to the private-keys-v1.d
directory on Windows and with a manually crafted sshcontrol file.  It
also works with a smartcard key.

May thanks to gniibe who implemented a proxy in Python to test the
putty/gpg-agent communication.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2013-07-03 13:29:47 +02:00
parent ed056d67c7
commit 9f32499f99
7 changed files with 472 additions and 5 deletions
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8
tools/gpgconf-comp.c
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@ -482,7 +482,7 @@ static gc_option_t gc_options_gpg_agent[] =
GC_ARG_TYPE_NONE, GC_BACKEND_GPG_AGENT },
{ "Configuration",
GC_OPT_FLAG_GROUP, GC_LEVEL_EXPERT,
GC_OPT_FLAG_GROUP, GC_LEVEL_BASIC,
"gnupg", N_("Options controlling the configuration") },
{ "options", GC_OPT_FLAG_NONE, GC_LEVEL_EXPERT,
"gnupg", "|FILE|read options from FILE",
@ -490,6 +490,12 @@ static gc_option_t gc_options_gpg_agent[] =
{ "disable-scdaemon", GC_OPT_FLAG_NONE, GC_LEVEL_ADVANCED,
"gnupg", "do not use the SCdaemon",
GC_ARG_TYPE_NONE, GC_BACKEND_GPG_AGENT },
{ "enable-ssh-support", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC,
"gnupg", "enable ssh support",
GC_ARG_TYPE_NONE, GC_BACKEND_GPG_AGENT },
{ "enable-putty-support", GC_OPT_FLAG_NONE, GC_LEVEL_BASIC,
"gnupg", "enable putty support",
GC_ARG_TYPE_NONE, GC_BACKEND_GPG_AGENT },
{ "Debug",
GC_OPT_FLAG_GROUP, GC_LEVEL_ADVANCED,