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network: move link_dhcp4_server_enabled()

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This commit is contained in:
Yu Watanabe 2020-10-02 16:35:54 +09:00
parent 062c020fb6
commit 5ae0fb7fb7
2 changed files with 47 additions and 36 deletions
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42
src/network/networkd-dhcp-server.c
View File

@ -1,5 +1,9 @@
/* SPDX-License-Identifier: LGPL-2.1+ */
#include <netinet/in.h>
#include <linux/if_arp.h>
#include <linux/if.h>
#include "sd-dhcp-server.h"
#include "fd-util.h"
@ -15,6 +19,24 @@
#include "string-util.h"
#include "strv.h"
static bool link_dhcp4_server_enabled(Link *link) {
assert(link);
if (link->flags & IFF_LOOPBACK)
return false;
if (!link->network)
return false;
if (link->network->bond)
return false;
if (link->iftype == ARPHRD_CAN)
return false;
return link->network->dhcp_server;
}
static Address* link_find_dhcp_server_address(Link *link) {
Address *address;
@ -231,6 +253,24 @@ int dhcp4_server_configure(Link *link) {
Address *address;
int r;
assert(link);
if (!link_dhcp4_server_enabled(link))
return 0;
if (!(link->flags & IFF_UP))
return 0;
if (!link->dhcp_server) {
r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
if (r < 0)
return r;
r = sd_dhcp_server_attach_event(link->dhcp_server, link->manager->event, 0);
if (r < 0)
return r;
}
address = link_find_dhcp_server_address(link);
if (!address)
return log_link_error_errno(link, SYNTHETIC_ERRNO(EBUSY),
@ -342,6 +382,8 @@ int dhcp4_server_configure(Link *link) {
r = sd_dhcp_server_start(link->dhcp_server);
if (r < 0)
return log_link_error_errno(link, r, "Could not start DHCPv4 server instance: %m");
log_link_debug(link, "Offering DHCPv4 leases");
}
return 0;

41
src/network/networkd-link.c
View File

@ -61,24 +61,6 @@ DUID* link_get_duid(Link *link) {
return &link->manager->duid;
}
static bool link_dhcp4_server_enabled(Link *link) {
assert(link);
if (link->flags & IFF_LOOPBACK)
return false;
if (!link->network)
return false;
if (link->network->bond)
return false;
if (link->iftype == ARPHRD_CAN)
return false;
return link->network->dhcp_server;
}
bool link_ipv4ll_enabled(Link *link, AddressFamily mask) {
assert(link);
assert((mask & ~(ADDRESS_FAMILY_IPV4 | ADDRESS_FAMILY_FALLBACK_IPV4)) == 0);
@ -974,12 +956,9 @@ static int link_set_static_configs(Link *link) {
return r;
/* now that we can figure out a default address for the dhcp server, start it */
if (link_dhcp4_server_enabled(link) && (link->flags & IFF_UP)) {
r = dhcp4_server_configure(link);
if (r < 0)
return r;
log_link_debug(link, "Offering DHCPv4 leases");
}
r = dhcp4_server_configure(link);
if (r < 0)
return r;
return 0;
}
@ -2414,16 +2393,6 @@ static int link_configure(Link *link) {
return r;
}
if (link_dhcp4_server_enabled(link)) {
r = sd_dhcp_server_new(&link->dhcp_server, link->ifindex);
if (r < 0)
return r;
r = sd_dhcp_server_attach_event(link->dhcp_server, NULL, 0);
if (r < 0)
return r;
}
if (link_dhcp6_enabled(link) ||
link_ipv6_accept_ra_enabled(link)) {
r = dhcp6_configure(link);
@ -2684,7 +2653,7 @@ static int link_reconfigure_internal(Link *link, sd_netlink_message *m, bool for
if (r < 0)
return r;
if (link_dhcp4_server_enabled(link))
if (link->dhcp_server)
(void) sd_dhcp_server_stop(link->dhcp_server);
r = link_drop_config(link);
@ -3174,7 +3143,7 @@ static int link_carrier_lost(Link *link) {
return r;
}
if (link_dhcp4_server_enabled(link))
if (link->dhcp_server)
(void) sd_dhcp_server_stop(link->dhcp_server);
r = link_drop_config(link);