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networkd: Allow specifying RouteTable for DHCP

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This commit is contained in:
Jason Kölker 2016-09-19 02:26:12 +00:00
parent dd8352659c
commit f594276b86
5 changed files with 46 additions and 0 deletions
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9
man/systemd.network.xml
View File

@ -917,6 +917,15 @@
DHCP server.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>RouteTable=<replaceable>num</replaceable></varname></term>
<listitem>
<para>The table identifier for dhcp routes (a number between 1 and 4294967295, or 0 to unset).
The table can be retrieved using <command>ip route show table <replaceable>num</replaceable></command>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>

3
src/network/networkd-dhcp4.c
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@ -95,6 +95,7 @@ static int link_set_dhcp_routes(Link *link) {
route_gw->scope = RT_SCOPE_LINK;
route_gw->protocol = RTPROT_DHCP;
route_gw->priority = link->network->dhcp_route_metric;
route_gw->table = link->network->dhcp_route_table;
r = route_configure(route_gw, link, dhcp4_route_handler);
if (r < 0)
@ -106,6 +107,7 @@ static int link_set_dhcp_routes(Link *link) {
route->gw.in = gateway;
route->prefsrc.in = address;
route->priority = link->network->dhcp_route_metric;
route->table = link->network->dhcp_route_table;
r = route_configure(route, link, dhcp4_route_handler);
if (r < 0) {
@ -136,6 +138,7 @@ static int link_set_dhcp_routes(Link *link) {
assert_se(sd_dhcp_route_get_destination(static_routes[i], &route->dst.in) >= 0);
assert_se(sd_dhcp_route_get_destination_prefix_length(static_routes[i], &route->dst_prefixlen) >= 0);
route->priority = link->network->dhcp_route_metric;
route->table = link->network->dhcp_route_table;
r = route_configure(route, link, dhcp4_route_handler);
if (r < 0)

1
src/network/networkd-network-gperf.gperf
View File

@ -92,6 +92,7 @@ DHCP.VendorClassIdentifier, config_parse_string,
DHCP.DUIDType, config_parse_duid_type, 0, offsetof(Network, duid.type)
DHCP.DUIDRawData, config_parse_duid_rawdata, 0, offsetof(Network, duid)
DHCP.RouteMetric, config_parse_unsigned, 0, offsetof(Network, dhcp_route_metric)
DHCP.RouteTable, config_parse_dhcp_route_table, 0, offsetof(Network, dhcp_route_table)
DHCP.UseTimezone, config_parse_bool, 0, offsetof(Network, dhcp_use_timezone)
DHCP.IAID, config_parse_iaid, 0, offsetof(Network, iaid)
IPv6AcceptRA.UseDNS, config_parse_bool, 0, offsetof(Network, ipv6_accept_ra_use_dns)

31
src/network/networkd-network.c
View File

@ -111,6 +111,7 @@ static int network_load_one(Manager *manager, const char *filename) {
network->dhcp_send_hostname = true;
network->dhcp_route_metric = DHCP_ROUTE_METRIC;
network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
network->dhcp_route_table = RT_TABLE_MAIN;
network->dhcp_server_emit_dns = true;
network->dhcp_server_emit_ntp = true;
@ -1033,6 +1034,36 @@ int config_parse_dnssec_negative_trust_anchors(
return 0;
}
int config_parse_dhcp_route_table(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) {
uint32_t rt;
int r;
assert(filename);
assert(lvalue);
assert(rvalue);
assert(data);
r = safe_atou32(rvalue, &rt);
if (r < 0) {
log_syntax(unit, LOG_ERR, filename, line, r,
"Unable to read RouteTable, ignoring assignment: %s", rvalue);
return 0;
}
*((uint32_t *)data) = rt;
return 0;
}
DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_use_domains, dhcp_use_domains, DHCPUseDomains, "Failed to parse DHCP use domains setting");
static const char* const dhcp_use_domains_table[_DHCP_USE_DOMAINS_MAX] = {

2
src/network/networkd-network.h
View File

@ -123,6 +123,7 @@ struct Network {
bool dhcp_use_routes;
bool dhcp_use_timezone;
unsigned dhcp_route_metric;
uint32_t dhcp_route_table;
/* DHCP Server Support */
bool dhcp_server;
@ -228,6 +229,7 @@ int config_parse_dhcp_server_ntp(const char *unit, const char *filename, unsigne
int config_parse_dnssec_negative_trust_anchors(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);
int config_parse_dhcp_use_domains(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);
int config_parse_lldp_mode(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);
int config_parse_dhcp_route_table(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);
/* Legacy IPv4LL support */
int config_parse_ipv4ll(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);