// SPDX-License-Identifier: LGPL-2.1+
/*
* Copyright (C) 2019 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-libnm-core-aux.h"
#include "nm-libnm-core-intern/nm-libnm-core-utils.h"
/*****************************************************************************/
typedef enum {
KEY_TYPE_STRING,
KEY_TYPE_INT,
KEY_TYPE_BOOL,
} KeyType;
typedef struct {
const char *str_val;
union {
int vint;
bool vbool;
} typ_val;
} ParseData;
typedef struct {
const char *name;
NMTeamLinkWatcherType watcher_type;
KeyType key_type;
union {
int (*fint) (const NMTeamLinkWatcher *watcher);
gboolean (*fbool) (const NMTeamLinkWatcher *watcher);
const char *(*fstring) (const NMTeamLinkWatcher *watcher);
} get_fcn;
union {
int vint;
bool vbool;
} def_val;
} TeamLinkWatcherKeyInfo;
static gboolean
_team_link_watcher_validate_active (const NMTeamLinkWatcher *watcher)
{
return NM_FLAGS_HAS (nm_team_link_watcher_get_flags (watcher), NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_ACTIVE);
}
static gboolean
_team_link_watcher_validate_inactive (const NMTeamLinkWatcher *watcher)
{
return NM_FLAGS_HAS (nm_team_link_watcher_get_flags (watcher), NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_INACTIVE);
}
static gboolean
_team_link_watcher_send_always (const NMTeamLinkWatcher *watcher)
{
return NM_FLAGS_HAS (nm_team_link_watcher_get_flags (watcher), NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_SEND_ALWAYS);
}
static const TeamLinkWatcherKeyInfo _team_link_watcher_key_infos[_NM_TEAM_LINK_WATCHER_KEY_NUM] = {
#define _KEY_INFO(key_id, _name, _watcher_type, _key_type, ...) \
[key_id] = { .name = ""_name"", .watcher_type = (_watcher_type), .key_type = _key_type, ##__VA_ARGS__ }
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_NAME, "name", NM_TEAM_LINK_WATCHER_TYPE_ETHTOOL | NM_TEAM_LINK_WATCHER_TYPE_NSNAPING | NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_STRING, .get_fcn.fstring = nm_team_link_watcher_get_name, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_DELAY_UP, "delay-up", NM_TEAM_LINK_WATCHER_TYPE_ETHTOOL, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_delay_up, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_DELAY_DOWN, "delay-down", NM_TEAM_LINK_WATCHER_TYPE_ETHTOOL, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_delay_down, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_INIT_WAIT, "init-wait", NM_TEAM_LINK_WATCHER_TYPE_NSNAPING | NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_init_wait, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_INTERVAL, "interval", NM_TEAM_LINK_WATCHER_TYPE_NSNAPING | NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_interval, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_MISSED_MAX, "missed-max", NM_TEAM_LINK_WATCHER_TYPE_NSNAPING | NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_missed_max, .def_val.vint = 3, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_TARGET_HOST, "target-host", NM_TEAM_LINK_WATCHER_TYPE_NSNAPING | NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_STRING, .get_fcn.fstring = nm_team_link_watcher_get_target_host, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_VLANID, "vlanid", NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_INT, .get_fcn.fint = nm_team_link_watcher_get_vlanid, .def_val.vint = -1, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_SOURCE_HOST, "source-host", NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_STRING, .get_fcn.fstring = nm_team_link_watcher_get_source_host, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_VALIDATE_ACTIVE, "validate-active", NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_BOOL, .get_fcn.fbool = _team_link_watcher_validate_active, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_VALIDATE_INACTIVE, "validate-inactive", NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_BOOL, .get_fcn.fbool = _team_link_watcher_validate_inactive, ),
_KEY_INFO (NM_TEAM_LINK_WATCHER_KEY_SEND_ALWAYS, "send-always", NM_TEAM_LINK_WATCHER_TYPE_ARPING, KEY_TYPE_BOOL, .get_fcn.fbool = _team_link_watcher_send_always, ),
};
static NMTeamLinkWatcherType
_team_link_watcher_get_watcher_type_from_name (const char *name)
{
if (name) {
if (nm_streq (name, NM_TEAM_LINK_WATCHER_ETHTOOL))
return NM_TEAM_LINK_WATCHER_TYPE_ETHTOOL;
if (nm_streq (name, NM_TEAM_LINK_WATCHER_NSNA_PING))
return NM_TEAM_LINK_WATCHER_TYPE_NSNAPING;
if (nm_streq (name, NM_TEAM_LINK_WATCHER_ARP_PING))
return NM_TEAM_LINK_WATCHER_TYPE_ARPING;
}
return NM_TEAM_LINK_WATCHER_TYPE_NONE;
}
static const char *
_parse_data_get_str (const ParseData parse_data[static _NM_TEAM_LINK_WATCHER_KEY_NUM],
NMTeamLinkWatcherKeyId key_id)
{
nm_assert (_NM_INT_NOT_NEGATIVE (key_id) && key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM);
nm_assert (_team_link_watcher_key_infos[key_id].key_type == KEY_TYPE_STRING);
return parse_data[key_id].str_val;
}
static int
_parse_data_get_int (const ParseData parse_data[static _NM_TEAM_LINK_WATCHER_KEY_NUM],
NMTeamLinkWatcherKeyId key_id)
{
nm_assert (_NM_INT_NOT_NEGATIVE (key_id) && key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM);
nm_assert (_team_link_watcher_key_infos[key_id].key_type == KEY_TYPE_INT);
if (parse_data[key_id].str_val)
return parse_data[key_id].typ_val.vint;
return _team_link_watcher_key_infos[key_id].def_val.vint;
}
static int
_parse_data_get_bool (const ParseData parse_data[static _NM_TEAM_LINK_WATCHER_KEY_NUM],
NMTeamLinkWatcherKeyId key_id)
{
nm_assert (_NM_INT_NOT_NEGATIVE (key_id) && key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM);
nm_assert (_team_link_watcher_key_infos[key_id].key_type == KEY_TYPE_BOOL);
if (parse_data[key_id].str_val)
return parse_data[key_id].typ_val.vbool;
return _team_link_watcher_key_infos[key_id].def_val.vbool;
}
char *
nm_utils_team_link_watcher_to_string (const NMTeamLinkWatcher *watcher)
{
nm_auto_free_gstring GString *str = NULL;
const char *name;
NMTeamLinkWatcherType watcher_type;
NMTeamLinkWatcherKeyId key_id;
if (!watcher)
return NULL;
str = g_string_new (NULL);
name = nm_team_link_watcher_get_name (watcher);
g_string_append_printf (str, "name=%s", name ?: "");
watcher_type = _team_link_watcher_get_watcher_type_from_name (name);
for (key_id = 0; key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM; key_id++) {
const TeamLinkWatcherKeyInfo *info = &_team_link_watcher_key_infos[key_id];
const char *vstr;
int vint;
bool vbool;
nm_assert (info->name && info->name && NM_STRCHAR_ALL (info->name, ch,((ch >= 'a' && ch <= 'z') || NM_IN_SET (ch, '-'))));
nm_assert (NM_IN_SET (info->key_type, KEY_TYPE_STRING,
KEY_TYPE_INT,
KEY_TYPE_BOOL));
if (key_id == NM_TEAM_LINK_WATCHER_KEY_NAME)
continue;
if (!NM_FLAGS_ALL (info->watcher_type, watcher_type))
continue;
switch (info->key_type) {
case KEY_TYPE_STRING:
vstr = info->get_fcn.fstring (watcher);
if (vstr) {
g_string_append_printf (nm_gstring_add_space_delimiter (str),
"%s=%s", info->name, vstr);
}
break;
case KEY_TYPE_INT:
vint = info->get_fcn.fint (watcher);
if (vint != info->def_val.vint) {
g_string_append_printf (nm_gstring_add_space_delimiter (str),
"%s=%d", info->name, vint);
}
break;
case KEY_TYPE_BOOL:
vbool = info->get_fcn.fbool (watcher);
if (vbool != info->def_val.vbool) {
g_string_append_printf (nm_gstring_add_space_delimiter (str),
"%s=%s", info->name, vbool ? "true" : "false");
}
break;
}
}
return g_string_free (g_steal_pointer (&str), FALSE);
}
NMTeamLinkWatcher *
nm_utils_team_link_watcher_from_string (const char *str,
GError **error)
{
gs_free const char **tokens = NULL;
ParseData parse_data[_NM_TEAM_LINK_WATCHER_KEY_NUM] = { };
NMTeamLinkWatcherType watcher_type;
NMTeamLinkWatcherKeyId key_id;
gsize i_token;
NMTeamLinkWatcher *watcher;
int errsv;
g_return_val_if_fail (str, NULL);
g_return_val_if_fail (!error || !*error, NULL);
tokens = nm_utils_escaped_tokens_split (str, NM_ASCII_SPACES);
if (!tokens) {
g_set_error (error, 1, 0, "'%s' is not valid", str);
return NULL;
}
for (i_token = 0; tokens[i_token]; i_token++) {
const TeamLinkWatcherKeyInfo *info;
const char *key = tokens[i_token];
const char *val;
val = strchr (key, '=');
if (!val) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("'%s' is not valid: properties should be specified as 'key=value'"),
key);
return NULL;
}
((char *) val)[0] = '\0';
val++;
for (key_id = 0; key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM; key_id++) {
info = &_team_link_watcher_key_infos[key_id];
if (nm_streq (key, info->name))
break;
}
if (key_id == _NM_TEAM_LINK_WATCHER_KEY_NUM) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("'%s' is not a valid key"), key);
return NULL;
}
if (parse_data[key_id].str_val) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("duplicate key '%s'"), key);
return NULL;
}
parse_data[key_id].str_val = val;
if (info->key_type == KEY_TYPE_INT) {
gint64 v64;
v64 = _nm_utils_ascii_str_to_int64 (val, 10, G_MININT, G_MAXINT, G_MAXINT64);
if ( v64 == G_MAXINT64
&& ((errsv = errno) != 0)) {
if (errsv == ERANGE) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("number for '%s' is out of range"), key);
} else {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("value for '%s' must be a number"), key);
}
return NULL;
}
parse_data[key_id].typ_val.vint = v64;
} else if (info->key_type == KEY_TYPE_BOOL) {
int vbool;
vbool = _nm_utils_ascii_str_to_bool (val, -1);
if (vbool == -1) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("value for '%s' must be a boolean"), key);
return NULL;
}
parse_data[key_id].typ_val.vbool = vbool;
}
}
if (!parse_data[NM_TEAM_LINK_WATCHER_KEY_NAME].str_val) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("missing 'name' attribute"));
return NULL;
}
watcher_type = _team_link_watcher_get_watcher_type_from_name (parse_data[NM_TEAM_LINK_WATCHER_KEY_NAME].str_val);
if (watcher_type == NM_TEAM_LINK_WATCHER_TYPE_NONE) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("invalid 'name' \"%s\""),
parse_data[NM_TEAM_LINK_WATCHER_KEY_NAME].str_val);
return NULL;
}
for (key_id = 0; key_id < _NM_TEAM_LINK_WATCHER_KEY_NUM; key_id++) {
const TeamLinkWatcherKeyInfo *info = &_team_link_watcher_key_infos[key_id];
if (!parse_data[key_id].str_val)
continue;
if (!NM_FLAGS_ALL (info->watcher_type, watcher_type)) {
nm_utils_error_set (error, NM_UTILS_ERROR_UNKNOWN,
_("attribute '%s' is invalid for \"%s\""),
info->name,
parse_data[NM_TEAM_LINK_WATCHER_KEY_NAME].str_val);
return NULL;
}
}
switch (watcher_type) {
case NM_TEAM_LINK_WATCHER_TYPE_ETHTOOL:
watcher = nm_team_link_watcher_new_ethtool (_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_DELAY_UP),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_DELAY_DOWN),
error);
break;
case NM_TEAM_LINK_WATCHER_TYPE_NSNAPING:
watcher = nm_team_link_watcher_new_nsna_ping (_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_INIT_WAIT),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_INTERVAL),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_MISSED_MAX),
_parse_data_get_str (parse_data, NM_TEAM_LINK_WATCHER_KEY_TARGET_HOST),
error);
break;
default:
nm_assert (watcher_type == NM_TEAM_LINK_WATCHER_TYPE_ARPING);
watcher = nm_team_link_watcher_new_arp_ping2 (_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_INIT_WAIT),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_INTERVAL),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_MISSED_MAX),
_parse_data_get_int (parse_data, NM_TEAM_LINK_WATCHER_KEY_VLANID),
_parse_data_get_str (parse_data, NM_TEAM_LINK_WATCHER_KEY_TARGET_HOST),
_parse_data_get_str (parse_data, NM_TEAM_LINK_WATCHER_KEY_SOURCE_HOST),
( NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE
| (_parse_data_get_bool (parse_data, NM_TEAM_LINK_WATCHER_KEY_VALIDATE_ACTIVE) ? NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_ACTIVE : NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE)
| (_parse_data_get_bool (parse_data, NM_TEAM_LINK_WATCHER_KEY_VALIDATE_INACTIVE) ? NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_VALIDATE_INACTIVE : NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE)
| (_parse_data_get_bool (parse_data, NM_TEAM_LINK_WATCHER_KEY_SEND_ALWAYS) ? NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_SEND_ALWAYS : NM_TEAM_LINK_WATCHER_ARP_PING_FLAG_NONE)
),
error);
break;
}
#if NM_MORE_ASSERTS > 5
if (watcher) {
gs_free char *str2 = NULL;
nm_auto_unref_team_link_watcher NMTeamLinkWatcher *watcher2 = NULL;
static _nm_thread_local int recursive;
nm_assert (!error || !*error);
if (recursive == 0) {
recursive = 1;
str2 = nm_utils_team_link_watcher_to_string (watcher);
nm_assert (str2);
watcher2 = nm_utils_team_link_watcher_from_string (str2, NULL);
nm_assert (watcher2);
nm_assert (nm_team_link_watcher_equal (watcher, watcher2));
nm_assert (nm_team_link_watcher_equal (watcher2, watcher));
nm_assert (recursive == 1);
recursive = 0;
}
} else
nm_assert (!error || *error);
#endif
return watcher;
}