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scd: Fix regression tracking the connection count.

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* scd/scdaemon.c (get_active_connection_count): New.
(start_connection_thread): Bump ACTIVE_CONNECTIONS up and down.
* scd/command.c (cmd_getinfo): Add subcommand "connections".

--

Apply gpg-agent change to scdaemon.  See the commit in 2016-08-06:
    40d16029ed8b334c371fa7f24ac762d47302826e

Then, add kicking the loop, so that main loop can notice the change of
the connection.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
This commit is contained in:
NIIBE Yutaka 2017-02-01 08:58:01 +09:00
parent 2e78aa6ff7
commit 8ddc9268f6
3 changed files with 41 additions and 24 deletions
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39
scd/command.c
View File

@ -1372,29 +1372,25 @@ static const char hlp_getinfo[] =
"Multi purpose command to return certain information. \n"
"Supported values of WHAT are:\n"
"\n"
"version - Return the version of the program.\n"
"pid - Return the process id of the server.\n"
"\n"
"socket_name - Return the name of the socket.\n"
"\n"
"status - Return the status of the current reader (in the future, may\n"
"also return the status of all readers). The status is a list of\n"
"one-character flags. The following flags are currently defined:\n"
" 'u' Usable card present. This is the normal state during operation.\n"
" version - Return the version of the program.\n"
" pid - Return the process id of the server.\n"
" socket_name - Return the name of the socket.\n"
" connections - Return number of active connections.\n"
" status - Return the status of the current reader (in the future,\n"
" may also return the status of all readers). The status\n"
" is a list of one-character flags. The following flags\n"
" are currently defined:\n"
" 'u' Usable card present.\n"
" 'r' Card removed. A reset is necessary.\n"
"These flags are exclusive.\n"
"\n"
"reader_list - Return a list of detected card readers. Does\n"
" These flags are exclusive.\n"
" reader_list - Return a list of detected card readers. Does\n"
" currently only work with the internal CCID driver.\n"
"\n"
"deny_admin - Returns OK if admin commands are not allowed or\n"
" deny_admin - Returns OK if admin commands are not allowed or\n"
" GPG_ERR_GENERAL if admin commands are allowed.\n"
"\n"
"app_list - Return a list of supported applications. One\n"
" app_list - Return a list of supported applications. One\n"
" application per line, fields delimited by colons,\n"
" first field is the name.\n"
"\n"
"card_list - Return a list of serial numbers of active cards,\n"
" card_list - Return a list of serial numbers of active cards,\n"
" using a status response.";
static gpg_error_t
cmd_getinfo (assuan_context_t ctx, char *line)
@ -1422,6 +1418,13 @@ cmd_getinfo (assuan_context_t ctx, char *line)
else
rc = gpg_error (GPG_ERR_NO_DATA);
}
else if (!strcmp (line, "connections"))
{
char numbuf[20];
snprintf (numbuf, sizeof numbuf, "%d", get_active_connection_count ());
rc = assuan_send_data (ctx, numbuf, strlen (numbuf));
}
else if (!strcmp (line, "status"))
{
ctrl_t ctrl = assuan_get_pointer (ctx);

13
scd/scdaemon.c
View File

@ -1150,6 +1150,8 @@ start_connection_thread (void *arg)
return NULL;
}
active_connections++;
scd_init_default_ctrl (ctrl);
if (opt.verbose)
log_info (_("handler for fd %d started\n"),
@ -1169,6 +1171,10 @@ start_connection_thread (void *arg)
scd_deinit_default_ctrl (ctrl);
xfree (ctrl);
if (--active_connections == 0)
scd_kick_the_loop ();
return NULL;
}
@ -1349,3 +1355,10 @@ handle_connections (int listen_fd)
log_info (_("%s %s stopped\n"), strusage(11), strusage(13));
npth_attr_destroy (&tattr);
}
/* Return the number of active connections. */
int
get_active_connection_count (void)
{
return active_connections;
}

1
scd/scdaemon.h
View File

@ -125,6 +125,7 @@ void send_status_info (ctrl_t ctrl, const char *keyword, ...)
void send_status_direct (ctrl_t ctrl, const char *keyword, const char *args);
void send_client_notifications (app_t app, int removal);
void scd_kick_the_loop (void);
int get_active_connection_count (void);
/*-- app.c --*/
int scd_update_reader_status_file (void);