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network: introduce network_adjust_dhcp()

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This commit is contained in:
Yu Watanabe 2020-10-12 16:52:33 +09:00
parent 3773eb5485
commit 22d37e5df6
3 changed files with 31 additions and 17 deletions
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32
src/network/networkd-dhcp-common.c
View File

@ -26,18 +26,38 @@ bool link_dhcp_enabled(Link *link, int family) {
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;
if (!link->network)
return false;
return link->network->dhcp & (family == AF_INET ? ADDRESS_FAMILY_IPV4 : ADDRESS_FAMILY_IPV6);
}
void network_adjust_dhcp(Network *network) {
assert(network);
assert(network->dhcp >= 0);
if (network->dhcp == ADDRESS_FAMILY_NO)
return;
/* Bonding slave does not support addressing. */
if (network->bond) {
log_warning("%s: Cannot enable DHCP= when Bond= is specified, disabling DHCP=.",
network->filename);
network->dhcp = ADDRESS_FAMILY_NO;
return;
}
if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6) &&
FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV6)) {
log_warning("%s: DHCPv6 client is enabled but IPv6 link local addressing is disabled. "
"Disabling DHCPv6 client.", network->filename);
SET_FLAG(network->dhcp, ADDRESS_FAMILY_IPV6, false);
}
}
DUID* link_get_duid(Link *link) {
if (link->network->duid.type != _DUID_TYPE_INVALID)
return &link->network->duid;

3
src/network/networkd-dhcp-common.h
View File

@ -9,6 +9,7 @@
typedef struct Link Link;
typedef struct Manager Manager;
typedef struct Network Network;
typedef enum DHCPUseDomains {
DHCP_USE_DOMAINS_NO,
@ -46,6 +47,8 @@ static inline bool link_dhcp6_enabled(Link *link) {
return link_dhcp_enabled(link, AF_INET6);
}
void network_adjust_dhcp(Network *network);
DUID* link_get_duid(Link *link);
int link_configure_duid(Link *link);
int manager_request_product_uuid(Manager *m, Link *link);

13
src/network/networkd-network.c
View File

@ -16,6 +16,7 @@
#include "network-internal.h"
#include "networkd-address-label.h"
#include "networkd-address.h"
#include "networkd-dhcp-common.h"
#include "networkd-fdb.h"
#include "networkd-manager.h"
#include "networkd-mdb.h"
@ -194,11 +195,6 @@ int network_verify(Network *network) {
network->filename);
network->link_local = ADDRESS_FAMILY_NO;
}
if (network->dhcp != ADDRESS_FAMILY_NO) {
log_warning("%s: Cannot enable DHCP= when Bond= is specified, disabling DHCP=.",
network->filename);
network->dhcp = ADDRESS_FAMILY_NO;
}
if (network->dhcp_server) {
log_warning("%s: Cannot enable DHCPServer= when Bond= is specified, disabling DHCPServer=.",
network->filename);
@ -219,12 +215,6 @@ int network_verify(Network *network) {
network->link_local = network->bridge ? ADDRESS_FAMILY_NO : ADDRESS_FAMILY_IPV6;
if (!FLAGS_SET(network->link_local, ADDRESS_FAMILY_IPV6)) {
if (FLAGS_SET(network->dhcp, ADDRESS_FAMILY_IPV6)) {
log_warning("%s: DHCPv6 client is enabled by the .network file but IPv6 link local addressing is disabled. "
"Disabling DHCPv6 client.", network->filename);
SET_FLAG(network->dhcp, ADDRESS_FAMILY_IPV6, false);
}
if (network->router_prefix_delegation != RADV_PREFIX_DELEGATION_NONE) {
log_warning("%s: IPv6PrefixDelegation= is enabled but IPv6 link local addressing is disabled. "
"Disabling IPv6PrefixDelegation=.", network->filename);
@ -244,6 +234,7 @@ int network_verify(Network *network) {
network->ip_forward |= ADDRESS_FAMILY_IPV4;
network_adjust_ipv6_accept_ra(network);
network_adjust_dhcp(network);
if (network->mtu > 0 && network->dhcp_use_mtu) {
log_warning("%s: MTUBytes= in [Link] section and UseMTU= in [DHCP] section are set. "