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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2014 Vinay Kulkarni <kulkarniv@vmware.com>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <ctype.h>
#include "conf-parser.h"
#include "def.h"
#include "dhcp-identifier.h"
#include "extract-word.h"
#include "hexdecoct.h"
#include "networkd-conf.h"
#include "networkd-network.h"
#include "string-table.h"
int manager_parse_config_file(Manager *m) {
assert(m);
return config_parse_many_nulstr(PKGSYSCONFDIR "/networkd.conf",
CONF_PATHS_NULSTR("systemd/networkd.conf.d"),
"DHCP\0",
config_item_perf_lookup, networkd_gperf_lookup,
CONFIG_PARSE_WARN, m);
}
static const char* const duid_type_table[_DUID_TYPE_MAX] = {
[DUID_TYPE_LLT] = "link-layer-time",
[DUID_TYPE_EN] = "vendor",
[DUID_TYPE_LL] = "link-layer",
[DUID_TYPE_UUID] = "uuid",
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(duid_type, DUIDType);
DEFINE_CONFIG_PARSE_ENUM(config_parse_duid_type, duid_type, DUIDType, "Failed to parse DUID type");
int config_parse_duid_rawdata(
const char *unit,
const char *filename,
unsigned line,
const char *section,
unsigned section_line,
const char *lvalue,
int ltype,
const char *rvalue,
void *data,
void *userdata) {
DUID *ret = data;
uint8_t raw_data[MAX_DUID_LEN];
unsigned count = 0;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(ret);
/* RawData contains DUID in format "NN:NN:NN..." */
for (;;) {
int n1, n2, len, r;
uint32_t byte;
_cleanup_free_ char *cbyte = NULL;
r = extract_first_word(&rvalue, &cbyte, ":", 0);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, r, "Failed to read DUID, ignoring assignment: %s.", rvalue);
return 0;
}
if (r == 0)
break;
if (count >= MAX_DUID_LEN) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Max DUID length exceeded, ignoring assignment: %s.", rvalue);
return 0;
}
len = strlen(cbyte);
if (!IN_SET(len, 1, 2)) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid length - DUID byte: %s, ignoring assignment: %s.", cbyte, rvalue);
return 0;
}
n1 = unhexchar(cbyte[0]);
if (len == 2)
n2 = unhexchar(cbyte[1]);
else
n2 = 0;
if (n1 < 0 || n2 < 0) {
log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid DUID byte: %s. Ignoring assignment: %s.", cbyte, rvalue);
return 0;
}
byte = ((uint8_t) n1 << (4 * (len-1))) | (uint8_t) n2;
raw_data[count++] = byte;
}
assert_cc(sizeof(raw_data) == sizeof(ret->raw_data));
memcpy(ret->raw_data, raw_data, count);
ret->raw_data_len = count;
return 0;
}
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