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lib,vtysh: Add vtysh commands for log-filter

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Add vtysh commands to add/del/clear/show filters across
all daemons and independently on each one. Add automake and
clippy boilerplate for those commands as well.

Signed-off-by: Stephen Worley <sworley@cumulusnetworks.com>
This commit is contained in:
Stephen Worley 2019-06-13 17:46:29 -04:00
parent f9ed934c7f
commit f73126c31a
6 changed files with 230 additions and 0 deletions
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1
lib/command.h
View File

@ -397,6 +397,7 @@ struct cmd_node {
#define SR_STR "Segment-Routing specific commands\n"
#define WATCHFRR_STR "watchfrr information\n"
#define ZEBRA_STR "Zebra information\n"
#define FILTER_LOG_STR "Filter Logs\n"
#define CMD_VNI_RANGE "(1-16777215)"
#define CONF_BACKUP_EXT ".sav"

2
lib/libfrr.c
View File

@ -31,6 +31,7 @@
#include "command.h"
#include "version.h"
#include "memory_vty.h"
#include "log_vty.h"
#include "zclient.h"
#include "log_int.h"
#include "module.h"
@ -677,6 +678,7 @@ struct thread_master *frr_init(void)
vty_init(master, di->log_always);
memory_init();
log_filter_cmd_init();
log_ref_init();
lib_error_init();

99
lib/log_vty.c Normal file
View File

@ -0,0 +1,99 @@
/*
* Logging - VTY code
* Copyright (C) 2019 Cumulus Networks, Inc.
* Stephen Worley
*
* 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 "lib/log_vty.h"
#include "command.h"
#include "lib/vty.h"
#include "lib/log.h"
#ifndef VTYSH_EXTRACT_PL
#include "lib/log_vty_clippy.c"
#endif
/* Log filter */
DEFPY (log_filter,
log_filter_cmd,
"[no] log-filter WORD$filter",
NO_STR
FILTER_LOG_STR
"String to filter by\n")
{
int ret = 0;
if (no)
ret = zlog_filter_del(filter);
else
ret = zlog_filter_add(filter);
if (ret == 1) {
vty_out(vty, "\tfilter table full\n");
return CMD_WARNING;
} else if (ret != 0) {
vty_out(vty, "\tfailed to %s log filter\n",
(no ? "remove" : "apply"));
return CMD_WARNING;
}
vty_out(vty, "\t%s\n", filter);
return CMD_SUCCESS;
}
/* Clear all log filters */
DEFPY (log_filter_clear,
log_filter_clear_cmd,
"clear log-filter",
CLEAR_STR
FILTER_LOG_STR)
{
zlog_filter_clear();
vty_out(vty, "\tcleared all filters\n");
return CMD_SUCCESS;
}
/* Show log filter */
DEFPY (show_log_filter,
show_log_filter_cmd,
"show log-filter",
SHOW_STR
FILTER_LOG_STR)
{
char log_filters[ZLOG_FILTERS_MAX * (ZLOG_FILTER_LENGTH_MAX + 3)] = "";
int len = 0;
len = zlog_filter_dump(log_filters, sizeof(log_filters));
if (len == -1) {
vty_out(vty, "\tfailed to get filters\n");
return CMD_WARNING;
}
if (len != 0)
vty_out(vty, "%s", log_filters);
return CMD_SUCCESS;
}
void log_filter_cmd_init(void)
{
install_element(VIEW_NODE, &show_log_filter_cmd);
install_element(CONFIG_NODE, &log_filter_cmd);
install_element(CONFIG_NODE, &log_filter_clear_cmd);
}

24
lib/log_vty.h Normal file
View File

@ -0,0 +1,24 @@
/*
* Logging - VTY library
* Copyright (C) 2019 Cumulus Networks, Inc.
* Stephen Worley
*
* 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
*/
#ifndef __LOG_VTY_H__
#define __LOG_VTY_H__
extern void log_filter_cmd_init(void);
#endif /* __LOG_VTY_H__ */

4
lib/subdir.am
View File

@ -42,6 +42,7 @@ lib_libfrr_la_SOURCES = \
lib/libfrr.c \
lib/linklist.c \
lib/log.c \
lib/log_vty.c \
lib/md5.c \
lib/memory.c \
lib/memory_vty.c \
@ -137,6 +138,8 @@ lib/northbound_cli_clippy.c: $(CLIPPY_DEPS)
lib/northbound_cli.lo: lib/northbound_cli_clippy.c
lib/vty_clippy.c: $(CLIPPY_DEPS)
lib/vty.lo: lib/vty_clippy.c
lib/log_vty_clippy.c: $(CLIPPY_DEPS)
lib/log_vty.lo: lib/log_vty_clippy.c
pkginclude_HEADERS += \
lib/agg_table.h \
@ -179,6 +182,7 @@ pkginclude_HEADERS += \
lib/libospf.h \
lib/linklist.h \
lib/log.h \
lib/log_vty.h \
lib/md5.h \
lib/memory.h \
lib/memory_vty.h \

100
vtysh/vtysh.c
View File

@ -2641,6 +2641,103 @@ DEFUNSH(VTYSH_ALL, no_vtysh_config_enable_password,
return CMD_SUCCESS;
}
/* Log filter */
DEFUN (vtysh_log_filter,
vtysh_log_filter_cmd,
"[no] log-filter WORD ["DAEMONS_LIST"]",
NO_STR
FILTER_LOG_STR
"String to filter by\n"
DAEMONS_STR)
{
char *filter = NULL;
char *daemon = NULL;
int found = 0;
int idx = 0;
int daemon_idx = 2;
int total_len = 0;
int len = 0;
char line[ZLOG_FILTER_LENGTH_MAX + 20];
found = argv_find(argv, argc, "no", &idx);
if (found == 1) {
len = snprintf(line, sizeof(line), "no log-filter");
daemon_idx += 1;
} else
len = snprintf(line, sizeof(line), "log-filter");
total_len += len;
idx = 1;
found = argv_find(argv, argc, "WORD", &idx);
if (found != 1) {
vty_out(vty, "No filter string given\n");
return CMD_WARNING;
}
filter = argv[idx]->arg;
if (strnlen(filter, ZLOG_FILTER_LENGTH_MAX + 1)
> ZLOG_FILTER_LENGTH_MAX) {
vty_out(vty, "Filter is too long\n");
return CMD_WARNING;
}
len = snprintf(line + total_len, sizeof(line) - total_len, " %s\n",
filter);
if ((len < 0) || (size_t)(total_len + len) > sizeof(line)) {
vty_out(vty, "Error buffering filter to daemons\n");
return CMD_ERR_INCOMPLETE;
}
if (argc >= (daemon_idx + 1))
daemon = argv[daemon_idx]->text;
if (daemon != NULL) {
vty_out(vty, "Applying log filter change to %s:\n", daemon);
return vtysh_client_execute_name(daemon, line);
} else
return show_per_daemon(line,
"Applying log filter change to %s:\n");
}
/* Clear log filters */
DEFUN (vtysh_log_filter_clear,
vtysh_log_filter_clear_cmd,
"log-filter clear ["DAEMONS_LIST"]",
FILTER_LOG_STR
CLEAR_STR
DAEMONS_STR)
{
char *daemon = NULL;
int daemon_idx = 2;
char line[] = "clear log-filter\n";
if (argc >= (daemon_idx + 1))
daemon = argv[daemon_idx]->text;
if (daemon != NULL) {
vty_out(vty, "Clearing all filters applied to %s:\n", daemon);
return vtysh_client_execute_name(daemon, line);
} else
return show_per_daemon(line,
"Clearing all filters applied to %s:\n");
}
/* Show log filter */
DEFUN (vtysh_show_log_filter,
vtysh_show_log_filter_cmd,
"show log-filter",
SHOW_STR
FILTER_LOG_STR)
{
char line[] = "do show log-filter\n";
return show_per_daemon(line, "Log filters applied to %s:\n");
}
DEFUN (vtysh_write_terminal,
vtysh_write_terminal_cmd,
"write terminal ["DAEMONS_LIST"]",
@ -3865,6 +3962,9 @@ void vtysh_init_vty(void)
/* Logging */
install_element(VIEW_NODE, &vtysh_show_logging_cmd);
install_element(VIEW_NODE, &vtysh_show_log_filter_cmd);
install_element(CONFIG_NODE, &vtysh_log_filter_cmd);
install_element(CONFIG_NODE, &vtysh_log_filter_clear_cmd);
install_element(CONFIG_NODE, &vtysh_log_stdout_cmd);
install_element(CONFIG_NODE, &vtysh_log_stdout_level_cmd);
install_element(CONFIG_NODE, &no_vtysh_log_stdout_cmd);