blob: 9b6dcfd80c2501876098dd5ec62cbcf1c72b586a [file] [log] [blame]
/*
* Action management functions.
*
* Copyright 2017 HAProxy Technologies, Christopher Faulet <cfaulet@haproxy.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <common/config.h>
#include <common/memory.h>
#include <common/mini-clist.h>
#include <common/standard.h>
#include <proto/action.h>
#include <proto/obj_type.h>
#include <proto/proxy.h>
#include <proto/stick_table.h>
#include <proto/task.h>
/* Find and check the target table used by an action ACT_ACTION_TRK_*. This
* function should be called during the configuration validity check.
*
* The function returns 1 in success case, otherwise, it returns 0 and err is
* filled.
*/
int check_trk_action(struct act_rule *rule, struct proxy *px, char **err)
{
struct proxy *target;
if (rule->arg.trk_ctr.table.n)
target = proxy_tbl_by_name(rule->arg.trk_ctr.table.n);
else
target = px;
if (!target) {
memprintf(err, "unable to find table '%s' referenced by track-sc%d",
rule->arg.trk_ctr.table.n, trk_idx(rule->action));
return 0;
}
else if (target->table.size == 0) {
memprintf(err, "table '%s' used but not configured",
rule->arg.trk_ctr.table.n ? rule->arg.trk_ctr.table.n : px->id);
return 0;
}
else if (!stktable_compatible_sample(rule->arg.trk_ctr.expr, target->table.type)) {
memprintf(err, "stick-table '%s' uses a type incompatible with the 'track-sc%d' rule",
rule->arg.trk_ctr.table.n ? rule->arg.trk_ctr.table.n : px->id,
trk_idx(rule->action));
return 0;
}
else if (px->bind_proc & ~target->bind_proc) {
memprintf(err, "stick-table '%s' referenced by 'track-sc%d' rule not present on all processes covered by proxy '%s'",
target->id, trk_idx(rule->action), px->id);
return 0;
}
else {
free(rule->arg.trk_ctr.table.n);
rule->arg.trk_ctr.table.t = &target->table;
/* Note: if we decide to enhance the track-sc syntax, we may be
* able to pass a list of counters to track and allocate them
* right here using stktable_alloc_data_type().
*/
}
return 1;
}
int act_resolution_cb(struct dns_requester *requester, struct dns_nameserver *nameserver)
{
struct stream *stream;
if (requester->resolution == NULL)
return 0;
stream = objt_stream(requester->owner);
if (stream == NULL)
return 0;
task_wakeup(stream->task, TASK_WOKEN_MSG);
return 0;
}
int act_resolution_error_cb(struct dns_requester *requester, int error_code)
{
struct stream *stream;
if (requester->resolution == NULL)
return 0;
stream = objt_stream(requester->owner);
if (stream == NULL)
return 0;
task_wakeup(stream->task, TASK_WOKEN_MSG);
return 0;
}