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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
Copyright © 2014 Vinay Kulkarni <kulkarniv@vmware.com>
***/
#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);
int config_parse_duid_type(
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) {
_cleanup_free_ char *type_string = NULL;
const char *p = rvalue;
DUID *duid = data;
DUIDType type;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(duid);
r = extract_first_word(&p, &type_string, ":", 0);
if (r == -ENOMEM)
return log_oom();
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Invalid syntax, ignoring: %s", rvalue);
return 0;
}
if (r == 0) {
log_syntax(unit, LOG_WARNING, filename, line, 0,
"Failed to extract DUID type from '%s', ignoring.", rvalue);
return 0;
}
type = duid_type_from_string(type_string);
if (type < 0) {
log_syntax(unit, LOG_WARNING, filename, line, 0,
"Failed to parse DUID type '%s', ignoring.", type_string);
return 0;
}
if (!isempty(p)) {
usec_t u;
if (type != DUID_TYPE_LLT) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Invalid syntax, ignoring: %s", rvalue);
return 0;
}
r = parse_timestamp(p, &u);
if (r < 0) {
log_syntax(unit, LOG_WARNING, filename, line, r,
"Failed to parse timestamp, ignoring: %s", p);
return 0;
}
duid->llt_time = u;
}
duid->type = type;
return 0;
}
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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