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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2014 Tom Gundersen <teg@jklm.no>
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 "conf-parser.h"
#include "resolved-conf.h"
int manager_parse_dns_server(Manager *m, DnsServerType type, const char *string) {
const char *word, *state;
size_t length;
DnsServer *first;
int r;
assert(m);
assert(string);
first = type == DNS_SERVER_FALLBACK ? m->fallback_dns_servers : m->dns_servers;
FOREACH_WORD_QUOTED(word, length, string, state) {
char buffer[length+1];
int family;
union in_addr_union addr;
bool found = false;
DnsServer *s;
memcpy(buffer, word, length);
buffer[length] = 0;
r = in_addr_from_string_auto(buffer, &family, &addr);
if (r < 0) {
log_warning("Ignoring invalid DNS address '%s'", buffer);
continue;
}
/* Filter out duplicates */
LIST_FOREACH(servers, s, first)
if (s->family == family && in_addr_equal(family, &s->address, &addr)) {
found = true;
break;
}
if (found)
continue;
r = dns_server_new(m, NULL, type, NULL, family, &addr);
if (r < 0)
return r;
}
return 0;
}
int config_parse_dnsv(
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) {
Manager *m = userdata;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(m);
if (isempty(rvalue))
/* Empty assignment means clear the list */
manager_flush_dns_servers(m, ltype);
else {
/* Otherwise add to the list */
r = manager_parse_dns_server(m, ltype, rvalue);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, -r, "Failed to parse DNS server string '%s'. Ignoring.", rvalue);
return 0;
}
}
/* If we have a manual setting, then we stop reading
* /etc/resolv.conf */
if (ltype == DNS_SERVER_SYSTEM)
m->read_resolv_conf = false;
return 0;
}
int config_parse_support(
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) {
Support support, *v = data;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
support = support_from_string(rvalue);
if (support < 0) {
r = parse_boolean(rvalue);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, -r, "Failed to parse support level '%s'. Ignoring.", rvalue);
return 0;
}
support = r ? SUPPORT_YES : SUPPORT_NO;
}
*v = support;
return 0;
}
int manager_parse_config_file(Manager *m) {
assert(m);
return config_parse_many("/etc/systemd/resolved.conf",
CONF_DIRS_NULSTR("systemd/resolved.conf"),
"Resolve\0",
config_item_perf_lookup, resolved_gperf_lookup,
false, m);
}
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