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Diffstat (limited to 'src/network/networkd-link.c')
-rw-r--r--src/network/networkd-link.c186
1 files changed, 111 insertions, 75 deletions
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 563eab9887..2883f195da 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -75,14 +75,8 @@ void link_free(Link *link) {
assert(link->manager);
- if (link->dhcp)
- sd_dhcp_client_free(link->dhcp);
-
- route_free(link->dhcp_route);
- link->dhcp_route = NULL;
-
- address_free(link->dhcp_address);
- link->dhcp_address = NULL;
+ sd_dhcp_client_free(link->dhcp_client);
+ sd_dhcp_lease_unref(link->dhcp_lease);
hashmap_remove(link->manager->links, &link->ifindex);
@@ -176,7 +170,7 @@ static int route_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
}
static int link_enter_set_routes(Link *link) {
- Route *route;
+ Route *rt;
int r;
assert(link);
@@ -185,13 +179,13 @@ static int link_enter_set_routes(Link *link) {
link->state = LINK_STATE_SETTING_ROUTES;
- if (!link->network->static_routes && !link->dhcp_route)
+ if (!link->network->static_routes && !link->dhcp_lease)
return link_enter_configured(link);
log_debug_link(link, "setting routes");
- LIST_FOREACH(static_routes, route, link->network->static_routes) {
- r = route_configure(route, link, &route_handler);
+ LIST_FOREACH(static_routes, rt, link->network->static_routes) {
+ r = route_configure(rt, link, &route_handler);
if (r < 0) {
log_warning_link(link,
"could not set routes: %s", strerror(-r));
@@ -202,8 +196,28 @@ static int link_enter_set_routes(Link *link) {
link->route_messages ++;
}
- if (link->dhcp_route) {
- r = route_configure(link->dhcp_route, link, &route_handler);
+ if (link->dhcp_lease) {
+ _cleanup_route_free_ Route *route = NULL;
+ struct in_addr gateway;
+
+ r = sd_dhcp_lease_get_router(link->dhcp_lease, &gateway);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no router: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = route_new_dynamic(&route);
+ if (r < 0) {
+ log_error_link(link, "Could not allocate route: %s",
+ strerror(-r));
+ return r;
+ }
+
+ route->family = AF_INET;
+ route->in_addr.in = gateway;
+
+ r = route_configure(route, link, &route_handler);
if (r < 0) {
log_warning_link(link,
"could not set routes: %s", strerror(-r));
@@ -249,7 +263,7 @@ static int address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata) {
}
static int link_enter_set_addresses(Link *link) {
- Address *address;
+ Address *ad;
int r;
assert(link);
@@ -258,13 +272,13 @@ static int link_enter_set_addresses(Link *link) {
link->state = LINK_STATE_SETTING_ADDRESSES;
- if (!link->network->static_addresses && !link->dhcp_address)
+ if (!link->network->static_addresses && !link->dhcp_lease)
return link_enter_set_routes(link);
log_debug_link(link, "setting addresses");
- LIST_FOREACH(static_addresses, address, link->network->static_addresses) {
- r = address_configure(address, link, &address_handler);
+ LIST_FOREACH(static_addresses, ad, link->network->static_addresses) {
+ r = address_configure(ad, link, &address_handler);
if (r < 0) {
log_warning_link(link,
"could not set addresses: %s", strerror(-r));
@@ -275,8 +289,41 @@ static int link_enter_set_addresses(Link *link) {
link->addr_messages ++;
}
- if (link->dhcp_address) {
- r = address_configure(link->dhcp_address, link, &address_handler);
+ if (link->dhcp_lease) {
+ _cleanup_address_free_ Address *address = NULL;
+ struct in_addr addr;
+ struct in_addr netmask;
+ unsigned prefixlen;
+
+ r = sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no address: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no netmask: %s",
+ strerror(-r));
+ return r;
+ }
+
+ prefixlen = net_netmask_to_prefixlen(&netmask);
+
+ r = address_new_dynamic(&address);
+ if (r < 0) {
+ log_error_link(link, "Could not allocate address: %s",
+ strerror(-r));
+ return r;
+ }
+
+ address->family = AF_INET;
+ address->in_addr.in = addr;
+ address->prefixlen = prefixlen;
+ address->broadcast.s_addr = addr.s_addr | ~netmask.s_addr;
+
+ r = address_configure(address, link, &address_handler);
if (r < 0) {
log_warning_link(link,
"could not set addresses: %s", strerror(-r));
@@ -410,28 +457,33 @@ static int link_set_mtu(Link *link, uint32_t mtu) {
return 0;
}
-static int dhcp_lease_lost(sd_dhcp_client *client, Link *link) {
+static int dhcp_lease_lost(Link *link) {
+ _cleanup_address_free_ Address *address = NULL;
+ struct in_addr addr;
+ struct in_addr netmask;
+ unsigned prefixlen;
int r;
- assert(client);
assert(link);
+ assert(link->dhcp_lease);
- if (link->dhcp_address) {
- address_drop(link->dhcp_address, link, address_drop_handler);
+ r = address_new_dynamic(&address);
+ if (r >= 0) {
+ sd_dhcp_lease_get_address(link->dhcp_lease, &addr);
+ sd_dhcp_lease_get_netmask(link->dhcp_lease, &netmask);
+ prefixlen = net_netmask_to_prefixlen(&netmask);
- address_free(link->dhcp_address);
- link->dhcp_address = NULL;
- }
+ address->family = AF_INET;
+ address->in_addr.in = addr;
+ address->prefixlen = prefixlen;
- if (link->dhcp_route) {
- route_free(link->dhcp_route);
- link->dhcp_route = NULL;
+ address_drop(address, link, address_drop_handler);
}
if (link->network->dhcp_mtu) {
uint16_t mtu;
- r = sd_dhcp_client_get_mtu(client, &mtu);
+ r = sd_dhcp_lease_get_mtu(link->dhcp_lease, &mtu);
if (r >= 0 && link->original_mtu != mtu) {
r = link_set_mtu(link, link->original_mtu);
if (r < 0) {
@@ -448,10 +500,13 @@ static int dhcp_lease_lost(sd_dhcp_client *client, Link *link) {
log_error("Failed to reset transient hostname");
}
+ link->dhcp_lease = sd_dhcp_lease_unref(link->dhcp_lease);
+
return 0;
}
static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
+ sd_dhcp_lease *lease;
struct in_addr address;
struct in_addr netmask;
struct in_addr gateway;
@@ -465,14 +520,21 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
assert(client);
assert(link);
- r = sd_dhcp_client_get_address(client, &address);
+ r = sd_dhcp_client_get_lease(client, &lease);
+ if (r < 0) {
+ log_warning_link(link, "DHCP error: no lease: %s",
+ strerror(-r));
+ return r;
+ }
+
+ r = sd_dhcp_lease_get_address(lease, &address);
if (r < 0) {
log_warning_link(link, "DHCP error: no address: %s",
strerror(-r));
return r;
}
- r = sd_dhcp_client_get_netmask(client, &netmask);
+ r = sd_dhcp_lease_get_netmask(lease, &netmask);
if (r < 0) {
log_warning_link(link, "DHCP error: no netmask: %s",
strerror(-r));
@@ -481,14 +543,13 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
prefixlen = net_netmask_to_prefixlen(&netmask);
- r = sd_dhcp_client_get_router(client, &gateway);
+ r = sd_dhcp_lease_get_router(lease, &gateway);
if (r < 0) {
log_warning_link(link, "DHCP error: no router: %s",
strerror(-r));
return r;
}
-
log_struct_link(LOG_INFO, link,
"MESSAGE=%s: DHCPv4 address %u.%u.%u.%u/%u via %u.%u.%u.%u",
link->ifname,
@@ -503,35 +564,8 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
ADDRESS_FMT_VAL(gateway),
NULL);
- r = address_new_dynamic(&addr);
- if (r < 0) {
- log_error_link(link, "Could not allocate address: %s",
- strerror(-r));
- return r;
- }
-
- addr->family = AF_INET;
- addr->in_addr.in = address;
- addr->prefixlen = prefixlen;
- addr->broadcast.s_addr = address.s_addr | ~netmask.s_addr;
-
- r = route_new_dynamic(&rt);
- if (r < 0) {
- log_error_link(link, "Could not allocate route: %s",
- strerror(-r));
- return r;
- }
-
- rt->family = AF_INET;
- rt->in_addr.in = gateway;
-
- link->dhcp_address = addr;
- link->dhcp_route = rt;
- addr = NULL;
- rt = NULL;
-
if (link->network->dhcp_dns) {
- r = sd_dhcp_client_get_dns(client, &nameservers, &nameservers_size);
+ r = sd_dhcp_lease_get_dns(lease, &nameservers, &nameservers_size);
if (r >= 0) {
r = manager_update_resolv_conf(link->manager);
if (r < 0)
@@ -542,7 +576,7 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
if (link->network->dhcp_mtu) {
uint16_t mtu;
- r = sd_dhcp_client_get_mtu(client, &mtu);
+ r = sd_dhcp_lease_get_mtu(lease, &mtu);
if (r >= 0) {
r = link_set_mtu(link, mtu);
if (r < 0)
@@ -554,7 +588,7 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
if (link->network->dhcp_hostname) {
const char *hostname;
- r = sd_dhcp_client_get_hostname(client, &hostname);
+ r = sd_dhcp_lease_get_hostname(lease, &hostname);
if (r >= 0) {
r = set_hostname(link->manager->bus, hostname);
if (r < 0)
@@ -563,6 +597,8 @@ static int dhcp_lease_acquired(sd_dhcp_client *client, Link *link) {
}
}
+ link->dhcp_lease = lease;
+
link_enter_set_addresses(link);
return 0;
@@ -592,7 +628,7 @@ static void dhcp_handler(sd_dhcp_client *client, int event, void *userdata) {
return;
}
- r = dhcp_lease_lost(client, link);
+ r = dhcp_lease_lost(link);
if (r < 0) {
link_enter_failed(link);
return;
@@ -634,29 +670,29 @@ static int link_acquire_conf(Link *link) {
assert(link->manager);
assert(link->manager->event);
- if (!link->dhcp) {
- r = sd_dhcp_client_new(&link->dhcp);
+ 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, NULL, 0);
+ r = sd_dhcp_client_attach_event(link->dhcp_client, NULL, 0);
if (r < 0)
return r;
- r = sd_dhcp_client_set_index(link->dhcp, link->ifindex);
+ r = sd_dhcp_client_set_index(link->dhcp_client, link->ifindex);
if (r < 0)
return r;
- r = sd_dhcp_client_set_mac(link->dhcp, &link->mac);
+ r = sd_dhcp_client_set_mac(link->dhcp_client, &link->mac);
if (r < 0)
return r;
- r = sd_dhcp_client_set_callback(link->dhcp, dhcp_handler, link);
+ r = sd_dhcp_client_set_callback(link->dhcp_client, dhcp_handler, link);
if (r < 0)
return r;
if (link->network->dhcp_mtu) {
- r = sd_dhcp_client_set_request_option(link->dhcp, 26);
+ r = sd_dhcp_client_set_request_option(link->dhcp_client, 26);
if (r < 0)
return r;
}
@@ -664,7 +700,7 @@ static int link_acquire_conf(Link *link) {
log_debug_link(link, "acquiring DHCPv4 lease");
- r = sd_dhcp_client_start(link->dhcp);
+ r = sd_dhcp_client_start(link->dhcp_client);
if (r < 0)
return r;
@@ -705,7 +741,7 @@ static int link_update_flags(Link *link, unsigned flags) {
log_info_link(link, "carrier off");
if (link->network->dhcp) {
- r = sd_dhcp_client_stop(link->dhcp);
+ r = sd_dhcp_client_stop(link->dhcp_client);
if (r < 0) {
log_warning_link(link, "Could not stop DHCPv4 client: %s", strerror(-r));
link_enter_failed(link);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-26 03:48:33 +0000