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Diffstat (limited to 'src/network/networkd-dhcp4.c')
-rw-r--r--src/network/networkd-dhcp4.c102
1 files changed, 56 insertions, 46 deletions
diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c
index 4ffb01382f..48e3d84055 100644
--- a/src/network/networkd-dhcp4.c
+++ b/src/network/networkd-dhcp4.c
@@ -22,10 +22,11 @@
#include <netinet/ether.h>
#include <linux/if.h>
+#include "alloc-util.h"
+#include "dhcp-lease-internal.h"
#include "hostname-util.h"
-#include "networkd-link.h"
#include "network-internal.h"
-#include "dhcp-lease-internal.h"
+#include "networkd-link.h"
static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m,
void *userdata) {
@@ -33,7 +34,7 @@ static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m,
int r;
assert(link);
- assert(link->dhcp4_messages);
+ assert(link->dhcp4_messages > 0);
link->dhcp4_messages --;
@@ -43,9 +44,9 @@ static int dhcp4_route_handler(sd_netlink *rtnl, sd_netlink_message *m,
link_enter_failed(link);
}
- if (!link->dhcp4_messages) {
+ if (link->dhcp4_messages == 0) {
link->dhcp4_configured = true;
- link_client_handler(link);
+ link_check_ready(link);
}
return 1;
@@ -72,11 +73,13 @@ static int link_set_dhcp_routes(Link *link) {
if (r < 0)
return log_link_warning_errno(link, r, "DHCP error: could not get address: %m");
- r = route_new_dynamic(&route, RTPROT_DHCP);
+ r = route_new(&route);
if (r < 0)
return log_link_error_errno(link, r, "Could not allocate route: %m");
- r = route_new_dynamic(&route_gw, RTPROT_DHCP);
+ route->protocol = RTPROT_DHCP;
+
+ r = route_new(&route_gw);
if (r < 0)
return log_link_error_errno(link, r, "Could not allocate route: %m");
@@ -84,11 +87,12 @@ static int link_set_dhcp_routes(Link *link) {
* route for the gw host so that we can route no matter the
* netmask or existing kernel route tables. */
route_gw->family = AF_INET;
- route_gw->dst_addr.in = gateway;
+ route_gw->dst.in = gateway;
route_gw->dst_prefixlen = 32;
- route_gw->prefsrc_addr.in = address;
+ route_gw->prefsrc.in = address;
route_gw->scope = RT_SCOPE_LINK;
- route_gw->metrics = link->network->dhcp_route_metric;
+ route_gw->protocol = RTPROT_DHCP;
+ route_gw->priority = link->network->dhcp_route_metric;
r = route_configure(route_gw, link, &dhcp4_route_handler);
if (r < 0)
@@ -97,9 +101,9 @@ static int link_set_dhcp_routes(Link *link) {
link->dhcp4_messages ++;
route->family = AF_INET;
- route->in_addr.in = gateway;
- route->prefsrc_addr.in = address;
- route->metrics = link->network->dhcp_route_metric;
+ route->gw.in = gateway;
+ route->prefsrc.in = address;
+ route->priority = link->network->dhcp_route_metric;
r = route_configure(route, link, &dhcp4_route_handler);
if (r < 0) {
@@ -120,15 +124,16 @@ static int link_set_dhcp_routes(Link *link) {
for (i = 0; i < n; i++) {
_cleanup_route_free_ Route *route = NULL;
- r = route_new_dynamic(&route, RTPROT_DHCP);
+ r = route_new(&route);
if (r < 0)
return log_link_error_errno(link, r, "Could not allocate route: %m");
route->family = AF_INET;
- route->in_addr.in = static_routes[i].gw_addr;
- route->dst_addr.in = static_routes[i].dst_addr;
+ route->protocol = RTPROT_DHCP;
+ route->gw.in = static_routes[i].gw_addr;
+ route->dst.in = static_routes[i].dst_addr;
route->dst_prefixlen = static_routes[i].dst_prefixlen;
- route->metrics = link->network->dhcp_route_metric;
+ route->priority = link->network->dhcp_route_metric;
r = route_configure(route, link, &dhcp4_route_handler);
if (r < 0)
@@ -162,45 +167,45 @@ static int dhcp_lease_lost(Link *link) {
for (i = 0; i < n; i++) {
_cleanup_route_free_ Route *route = NULL;
- r = route_new_dynamic(&route, RTPROT_UNSPEC);
+ r = route_new(&route);
if (r >= 0) {
route->family = AF_INET;
- route->in_addr.in = routes[i].gw_addr;
- route->dst_addr.in = routes[i].dst_addr;
+ route->gw.in = routes[i].gw_addr;
+ route->dst.in = routes[i].dst_addr;
route->dst_prefixlen = routes[i].dst_prefixlen;
- route_drop(route, link,
- &link_route_drop_handler);
+ route_remove(route, link,
+ &link_route_remove_handler);
}
}
}
}
- r = address_new_dynamic(&address);
+ r = address_new(&address);
if (r >= 0) {
r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway);
if (r >= 0) {
_cleanup_route_free_ Route *route_gw = NULL;
_cleanup_route_free_ Route *route = NULL;
- r = route_new_dynamic(&route_gw, RTPROT_UNSPEC);
+ r = route_new(&route_gw);
if (r >= 0) {
route_gw->family = AF_INET;
- route_gw->dst_addr.in = gateway;
+ route_gw->dst.in = gateway;
route_gw->dst_prefixlen = 32;
route_gw->scope = RT_SCOPE_LINK;
- route_drop(route_gw, link,
- &link_route_drop_handler);
+ route_remove(route_gw, link,
+ &link_route_remove_handler);
}
- r = route_new_dynamic(&route, RTPROT_UNSPEC);
+ r = route_new(&route);
if (r >= 0) {
route->family = AF_INET;
- route->in_addr.in = gateway;
+ route->gw.in = gateway;
- route_drop(route, link,
- &link_route_drop_handler);
+ route_remove(route, link,
+ &link_route_remove_handler);
}
}
@@ -214,7 +219,7 @@ static int dhcp_lease_lost(Link *link) {
address->in_addr.in = addr;
address->prefixlen = prefixlen;
- address_drop(address, link, &link_address_drop_handler);
+ address_remove(address, link, &link_address_remove_handler);
}
}
@@ -250,6 +255,7 @@ static int dhcp_lease_lost(Link *link) {
}
link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease);
+ link_dirty(link);
link->dhcp4_configured = false;
return 0;
@@ -267,7 +273,7 @@ static int dhcp4_address_handler(sd_netlink *rtnl, sd_netlink_message *m,
log_link_error_errno(link, r, "Could not set DHCPv4 address: %m");
link_enter_failed(link);
} else if (r >= 0)
- link_rtnl_process_address(rtnl, m, link->manager);
+ manager_rtnl_process_address(rtnl, m, link->manager);
link_set_dhcp_routes(link);
@@ -288,7 +294,7 @@ static int dhcp4_update_address(Link *link,
prefixlen = in_addr_netmask_to_prefixlen(netmask);
- r = address_new_dynamic(&addr);
+ r = address_new(&addr);
if (r < 0)
return r;
@@ -299,9 +305,9 @@ static int dhcp4_update_address(Link *link,
addr->prefixlen = prefixlen;
addr->broadcast.s_addr = address->s_addr | ~netmask->s_addr;
- /* use update rather than configure so that we will update the
- * lifetime of an existing address if it has already been configured */
- r = address_update(addr, link, &dhcp4_address_handler);
+ /* allow reusing an existing address and simply update its lifetime
+ * in case it already exists */
+ r = address_configure(addr, link, &dhcp4_address_handler, true);
if (r < 0)
return r;
@@ -326,6 +332,7 @@ static int dhcp_lease_renew(sd_dhcp_client *client, Link *link) {
sd_dhcp_lease_unref(link->dhcp_lease);
link->dhcp4_configured = false;
link->dhcp_lease = sd_dhcp_lease_ref(lease);
+ link_dirty(link);
r = sd_dhcp_lease_get_address(lease, &address);
if (r < 0)
@@ -403,6 +410,7 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
NULL);
link->dhcp_lease = sd_dhcp_lease_ref(lease);
+ link_dirty(link);
if (link->network->dhcp_mtu) {
uint16_t mtu;
@@ -471,9 +479,9 @@ static void dhcp4_handler(sd_dhcp_client *client, int event, void *userdata) {
return;
switch (event) {
- case DHCP_EVENT_EXPIRED:
- case DHCP_EVENT_STOP:
- case DHCP_EVENT_IP_CHANGE:
+ case SD_DHCP_CLIENT_EVENT_EXPIRED:
+ case SD_DHCP_CLIENT_EVENT_STOP:
+ case SD_DHCP_CLIENT_EVENT_IP_CHANGE:
if (link->network->dhcp_critical) {
log_link_error(link, "DHCPv4 connection considered system critical, ignoring request to reconfigure it.");
return;
@@ -487,7 +495,7 @@ static void dhcp4_handler(sd_dhcp_client *client, int event, void *userdata) {
}
}
- if (event == DHCP_EVENT_IP_CHANGE) {
+ if (event == SD_DHCP_CLIENT_EVENT_IP_CHANGE) {
r = dhcp_lease_acquired(client, link);
if (r < 0) {
link_enter_failed(link);
@@ -496,14 +504,14 @@ static void dhcp4_handler(sd_dhcp_client *client, int event, void *userdata) {
}
break;
- case DHCP_EVENT_RENEW:
+ case SD_DHCP_CLIENT_EVENT_RENEW:
r = dhcp_lease_renew(client, link);
if (r < 0) {
link_enter_failed(link);
return;
}
break;
- case DHCP_EVENT_IP_ACQUIRE:
+ case SD_DHCP_CLIENT_EVENT_IP_ACQUIRE:
r = dhcp_lease_acquired(client, link);
if (r < 0) {
link_enter_failed(link);
@@ -528,9 +536,11 @@ int dhcp4_configure(Link *link) {
assert(link->network);
assert(link->network->dhcp & ADDRESS_FAMILY_IPV4);
- r = sd_dhcp_client_new(&link->dhcp_client);
- if (r < 0)
- return r;
+ if (!link->dhcp_client) {
+ r = sd_dhcp_client_new(&link->dhcp_client);
+ if (r < 0)
+ return r;
+ }
r = sd_dhcp_client_attach_event(link->dhcp_client, NULL, 0);
if (r < 0)
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2025-05-29 12:21:28 +0000