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/*
* PBR - debugging
* Copyright (C) 2018 Cumulus Networks, Inc.
* Quentin Young
*
* 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.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <zebra.h>
#include "debug.h"
#include "command.h"
#include "vector.h"
#ifndef VTYSH_EXTRACT_PL
#include "pbrd/pbr_debug_clippy.c"
#endif
#include "pbrd/pbr_debug.h"
struct debug pbr_dbg_map = {0, "PBR map"};
struct debug pbr_dbg_zebra = {0, "PBR Zebra communications"};
struct debug pbr_dbg_nht = {0, "PBR nexthop tracking"};
struct debug pbr_dbg_event = {0, "PBR events"};
struct debug *pbr_debugs[] = {&pbr_dbg_map, &pbr_dbg_zebra, &pbr_dbg_nht,
&pbr_dbg_event};
const char *pbr_debugs_conflines[] = {
"debug pbr map",
"debug pbr zebra",
"debug pbr nht",
"debug pbr events",
};
/*
* Set or unset flags on all debugs for pbrd.
*
* flags
* The flags to set
*
* set
* Whether to set or unset the specified flags
*/
static void pbr_debug_set_all(uint32_t flags, bool set)
{
for (unsigned int i = 0; i < array_size(pbr_debugs); i++) {
DEBUG_FLAGS_SET(pbr_debugs[i], flags, set);
/* if all modes have been turned off, don't preserve options */
if (!DEBUG_MODE_CHECK(pbr_debugs[i], DEBUG_MODE_ALL))
DEBUG_CLEAR(pbr_debugs[i]);
}
}
/*
* Check flags on all debugs for pbrd.
*
* flags
* The flags to set
*
* Returns:
* The subset of the given flags that were set in all pbrd debugs
*/
static uint32_t pbr_debug_check_all(uint32_t flags)
{
uint32_t mode = DEBUG_MODE_ALL;
for (unsigned int i = 0; i < array_size(pbr_debugs); i++)
mode &= DEBUG_MODE_CHECK(pbr_debugs[i], flags);
return mode;
}
static int pbr_debug_config_write_helper(struct vty *vty, bool config)
{
uint32_t mode = DEBUG_MODE_ALL;
if (config)
mode = DEBUG_MODE_CONF;
if (pbr_debug_check_all(DEBUG_MODE_CONF) == mode) {
vty_out(vty, "debug pbr\n");
return 0;
}
for (unsigned int i = 0; i < array_size(pbr_debugs); i++)
if (DEBUG_MODE_CHECK(pbr_debugs[i], mode))
vty_out(vty, "%s\n", pbr_debugs_conflines[i]);
return 0;
}
int pbr_debug_config_write(struct vty *vty)
{
return pbr_debug_config_write_helper(vty, true);
}
/* PBR debugging CLI ------------------------------------------------------- */
/* clang-format off */
DEFPY(debug_pbr,
debug_pbr_cmd,
"[no] debug pbr [{map$map|zebra$zebra|nht$nht|events$events}]",
NO_STR
DEBUG_STR
"Policy Based Routing\n"
"Policy maps\n"
"PBRD <-> Zebra communications\n"
"Nexthop tracking\n"
"Events\n")
{
uint32_t mode = DEBUG_NODE2MODE(vty->node);
if (map)
DEBUG_MODE_SET(&pbr_dbg_map, mode, !no);
if (zebra)
DEBUG_MODE_SET(&pbr_dbg_zebra, mode, !no);
if (nht)
DEBUG_MODE_SET(&pbr_dbg_nht, mode, !no);
if (events)
DEBUG_MODE_SET(&pbr_dbg_event, mode, !no);
/* no specific debug --> act on all of them */
if (strmatch(argv[argc - 1]->text, "pbr"))
pbr_debug_set_all(mode, !no);
return CMD_SUCCESS;
}
DEFUN_NOSH(show_debugging_pbr,
show_debugging_pbr_cmd,
"show debugging [pbr]",
SHOW_STR
DEBUG_STR
"Policy Based Routing\n")
{
vty_out(vty, "PBR debugging status:\n");
pbr_debug_config_write_helper(vty, false);
return CMD_SUCCESS;
}
/* clang-format on */
/* ------------------------------------------------------------------------- */
static struct cmd_node debug_node = {DEBUG_NODE, "", 1};
struct debug_callbacks pbr_dbg_cbs = {.debug_set_all = pbr_debug_set_all};
void pbr_debug_init(void)
{
debug_init(&pbr_dbg_cbs);
}
void pbr_debug_init_vty(void)
{
install_node(&debug_node, pbr_debug_config_write);
install_element(VIEW_NODE, &debug_pbr_cmd);
install_element(CONFIG_NODE, &debug_pbr_cmd);
install_element(VIEW_NODE, &show_debugging_pbr_cmd);
}
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