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doc: Describe the ssh-agent protocol options for Windows.

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--

Also fix a typo in a macro.
This commit is contained in:
Werner Koch 2024-01-15 17:21:24 +01:00
parent 4cdfc1d0d9
commit daedb3c965
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2 changed files with 18 additions and 7 deletions
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4
agent/gpg-agent.c
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@ -366,7 +366,7 @@ static int putty_support;
/* Path to the pipe, which handles requests from Win32-OpenSSH. */
static const char *win32_openssh_support;
#define W32_DEFAILT_AGENT_PIPE_NAME "\\\\.\\pipe\\openssh-ssh-agent"
#define W32_DEFAULT_AGENT_PIPE_NAME "\\\\.\\pipe\\openssh-ssh-agent"
#endif /*HAVE_W32_SYSTEM*/
/* The list of open file descriptors at startup. Note that this list
@ -1295,7 +1295,7 @@ main (int argc, char **argv)
if (pargs.r_type)
win32_openssh_support = pargs.r.ret_str;
else
win32_openssh_support = W32_DEFAILT_AGENT_PIPE_NAME;
win32_openssh_support = W32_DEFAULT_AGENT_PIPE_NAME;
# endif
break;

21
doc/gpg-agent.texi
View File

@ -623,19 +623,30 @@ are touched.
@anchor{option --enable-ssh-support}
@item --enable-ssh-support
@itemx --enable-win32-openssh-support
@itemx --enable-putty-support
@opindex enable-ssh-support
@opindex enable-win32-openssh-support
@opindex enable-putty-support
The OpenSSH Agent protocol is always enabled, but @command{gpg-agent}
will only set the @code{SSH_AUTH_SOCK} variable if this flag is given.
On Unix platforms the OpenSSH Agent protocol is always enabled, but
@command{gpg-agent} will only set the @code{SSH_AUTH_SOCK} variable if
the option @option{enable-ssh-support} is given. Some Linux
distributions use the presence of this option to decide whether the
old ssh-agent shall be started.
On Windows support for the native ssh implementation must be enabled
using the the option @option{enable-win32-openssh-support}. For using
gpg-agent as a replacement for PuTTY's Pageant, the option
@option{enable-putty-support} must be enabled.
In this mode of operation, the agent does not only implement the
gpg-agent protocol, but also the agent protocol used by OpenSSH
(through a separate socket). Consequently, it should be possible to use
the gpg-agent as a drop-in replacement for the well known ssh-agent.
(through a separate socket or via Named Pipes) or the protocol used by
PuTTY. Consequently, this allows to use the gpg-agent as a drop-in
replacement for the ssh-agent.
SSH Keys, which are to be used through the agent, need to be added to
SSH keys, which are to be used through the agent, need to be added to
the gpg-agent initially through the ssh-add utility. When a key is
added, ssh-add will ask for the password of the provided key file and
send the unprotected key material to the agent; this causes the