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networkd: Make DHCP client ID creation configurable

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This commit is contained in:
Jan Janssen 2015-03-03 19:49:48 +01:00 committed by Tom Gundersen
parent ff88a301e9
commit 3e43b2cd97
5 changed files with 45 additions and 0 deletions
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8
man/systemd.network.xml
View File

@ -563,6 +563,14 @@
false.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>ClientIdentifier=</varname></term>
<listitem>
<para>DHCP client identifier to use. Either <literal>mac</literal>
to use the MAC address of the link or <literal>duid</literal>
(the default) to use a RFC4361-complient Client ID.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><varname>VendorClassIdentifier=</varname></term>
<listitem>

16
src/network/networkd-dhcp4.c
View File

@ -661,5 +661,21 @@ int dhcp4_configure(Link *link) {
return r;
}
switch (link->network->dhcp_client_identifier) {
case DHCP_CLIENT_ID_DUID:
/* Library defaults to this. */
break;
case DHCP_CLIENT_ID_MAC:
r = sd_dhcp_client_set_client_id(link->dhcp_client,
ARPHRD_ETHER,
(const uint8_t *) &link->mac,
sizeof (link->mac));
if (r < 0)
return r;
break;
default:
assert_not_reached("Unknown client identifier type.");
}
return 0;
}

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

@ -58,6 +58,7 @@ Route.Destination, config_parse_destination, 0,
Route.Source, config_parse_destination, 0, 0
Route.Metric, config_parse_route_priority, 0, 0
Route.Scope, config_parse_route_scope, 0, 0
DHCP.ClientIdentifier, config_parse_dhcp_client_identifier,0, offsetof(Network, dhcp_client_identifier)
DHCP.UseDNS, config_parse_bool, 0, offsetof(Network, dhcp_dns)
DHCP.UseMTU, config_parse_bool, 0, offsetof(Network, dhcp_mtu)
DHCP.UseHostname, config_parse_bool, 0, offsetof(Network, dhcp_hostname)

9
src/network/networkd-network.c
View File

@ -103,6 +103,7 @@ static int network_load_one(Manager *manager, const char *filename) {
network->dhcp_routes = true;
network->dhcp_sendhost = true;
network->dhcp_route_metric = DHCP_ROUTE_METRIC;
network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
network->llmnr = LLMNR_SUPPORT_YES;
@ -600,6 +601,14 @@ int config_parse_dhcp(
return 0;
}
static const char* const dhcp_client_identifier_table[_DHCP_CLIENT_ID_MAX] = {
[DHCP_CLIENT_ID_MAC] = "mac",
[DHCP_CLIENT_ID_DUID] = "duid"
};
DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_client_identifier, DCHPClientIdentifier);
DEFINE_CONFIG_PARSE_ENUM(config_parse_dhcp_client_identifier, dhcp_client_identifier, DCHPClientIdentifier, "Failed to parse client identifier type");
static const char* const llmnr_support_table[_LLMNR_SUPPORT_MAX] = {
[LLMNR_SUPPORT_NO] = "no",
[LLMNR_SUPPORT_YES] = "yes",

11
src/network/networkd.h
View File

@ -83,6 +83,13 @@ typedef enum LinkOperationalState {
_LINK_OPERSTATE_INVALID = -1
} LinkOperationalState;
typedef enum DCHPClientIdentifier {
DHCP_CLIENT_ID_MAC,
DHCP_CLIENT_ID_DUID,
_DHCP_CLIENT_ID_MAX,
_DHCP_CLIENT_ID_INVALID = -1,
} DCHPClientIdentifier;
struct FdbEntry {
Network *network;
unsigned section;
@ -115,6 +122,7 @@ struct Network {
NetDev *bond;
Hashmap *stacked_netdevs;
AddressFamilyBoolean dhcp;
DCHPClientIdentifier dhcp_client_identifier;
char *dhcp_vendor_class_identifier;
bool dhcp_dns;
bool dhcp_ntp;
@ -403,6 +411,9 @@ int config_parse_fdb_vlan_id(const char *unit, const char *filename, unsigned li
int config_parse_dhcp(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_client_identifier(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);
/* IPv4LL support (legacy) */