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-rw-r--r--Makefile.am2
-rw-r--r--src/libsystemd-dhcp/dhcp-lease.c244
-rw-r--r--src/libsystemd-dhcp/dhcp-lease.h57
-rw-r--r--src/libsystemd-dhcp/sd-dhcp-client.c261
-rw-r--r--src/network/networkd-link.c186
-rw-r--r--src/network/networkd-manager.c6
-rw-r--r--src/network/networkd.h9
-rw-r--r--src/systemd/sd-dhcp-client.h20
8 files changed, 454 insertions, 331 deletions
diff --git a/Makefile.am b/Makefile.am
index 8af29d160e..4f5e036990 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2345,6 +2345,8 @@ noinst_LTLIBRARIES += \
libsystemd_dhcp_la_SOURCES = \
src/systemd/sd-dhcp-client.h \
src/libsystemd-dhcp/sd-dhcp-client.c \
+ src/libsystemd-dhcp/dhcp-lease.h \
+ src/libsystemd-dhcp/dhcp-lease.c \
src/libsystemd-dhcp/dhcp-network.c \
src/libsystemd-dhcp/dhcp-option.c \
src/libsystemd-dhcp/dhcp-internal.h \
diff --git a/src/libsystemd-dhcp/dhcp-lease.c b/src/libsystemd-dhcp/dhcp-lease.c
new file mode 100644
index 0000000000..c1f76aa561
--- /dev/null
+++ b/src/libsystemd-dhcp/dhcp-lease.c
@@ -0,0 +1,244 @@
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2013 Intel Corporation. All rights reserved.
+ Copyright (C) 2014 Tom Gundersen
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+#include <net/ethernet.h>
+#include <sys/param.h>
+
+#include "util.h"
+#include "list.h"
+
+#include "dhcp-protocol.h"
+#include "dhcp-internal.h"
+#include "dhcp-lease.h"
+#include "sd-dhcp-client.h"
+
+int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr) {
+ assert_return(lease, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ addr->s_addr = lease->address;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_mtu(sd_dhcp_lease *lease, uint16_t *mtu) {
+ assert_return(lease, -EINVAL);
+ assert_return(mtu, -EINVAL);
+
+ if (lease->mtu)
+ *mtu = lease->mtu;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_dns(sd_dhcp_lease *lease, struct in_addr **addr, size_t *addr_size) {
+ assert_return(lease, -EINVAL);
+ assert_return(addr, -EINVAL);
+ assert_return(addr_size, -EINVAL);
+
+ if (lease->dns_size) {
+ *addr_size = lease->dns_size;
+ *addr = lease->dns;
+ } else
+ return -ENOENT;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_domainname(sd_dhcp_lease *lease, const char **domainname) {
+ assert_return(lease, -EINVAL);
+ assert_return(domainname, -EINVAL);
+
+ if (lease->domainname)
+ *domainname = lease->domainname;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_hostname(sd_dhcp_lease *lease, const char **hostname) {
+ assert_return(lease, -EINVAL);
+ assert_return(hostname, -EINVAL);
+
+ if (lease->hostname)
+ *hostname = lease->hostname;
+ else
+ return -ENOENT;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_router(sd_dhcp_lease *lease, struct in_addr *addr) {
+ assert_return(lease, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ addr->s_addr = lease->router;
+
+ return 0;
+}
+
+int sd_dhcp_lease_get_netmask(sd_dhcp_lease *lease, struct in_addr *addr) {
+ assert_return(lease, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ addr->s_addr = lease->subnet_mask;
+
+ return 0;
+}
+
+sd_dhcp_lease *sd_dhcp_lease_ref(sd_dhcp_lease *lease) {
+ if (lease)
+ assert_se(REFCNT_INC(lease->n_ref) >= 2);
+
+ return lease;
+}
+
+sd_dhcp_lease *sd_dhcp_lease_unref(sd_dhcp_lease *lease) {
+ if (lease && REFCNT_DEC(lease->n_ref) <= 0) {
+ free(lease->hostname);
+ free(lease->domainname);
+ free(lease->dns);
+ free(lease);
+ }
+
+ return NULL;
+}
+
+int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
+ void *user_data) {
+ sd_dhcp_lease *lease = user_data;
+ be32_t val;
+
+ switch(code) {
+
+ case DHCP_OPTION_IP_ADDRESS_LEASE_TIME:
+ if (len == 4) {
+ memcpy(&val, option, 4);
+ lease->lifetime = be32toh(val);
+ }
+
+ break;
+
+ case DHCP_OPTION_SERVER_IDENTIFIER:
+ if (len >= 4)
+ memcpy(&lease->server_address, option, 4);
+
+ break;
+
+ case DHCP_OPTION_SUBNET_MASK:
+ if (len >= 4)
+ memcpy(&lease->subnet_mask, option, 4);
+
+ break;
+
+ case DHCP_OPTION_ROUTER:
+ if (len >= 4)
+ memcpy(&lease->router, option, 4);
+
+ break;
+
+ case DHCP_OPTION_DOMAIN_NAME_SERVER:
+ if (len && !(len % 4)) {
+ unsigned i;
+
+ lease->dns_size = len / 4;
+
+ free(lease->dns);
+ lease->dns = new0(struct in_addr, lease->dns_size);
+ if (!lease->dns)
+ return -ENOMEM;
+
+ for (i = 0; i < lease->dns_size; i++) {
+ memcpy(&lease->dns[i].s_addr, option + 4 * i, 4);
+ }
+ }
+
+ break;
+
+ case DHCP_OPTION_INTERFACE_MTU:
+ if (len >= 2) {
+ be16_t mtu;
+
+ memcpy(&mtu, option, 2);
+ lease->mtu = be16toh(mtu);
+
+ if (lease->mtu < 68)
+ lease->mtu = 0;
+ }
+
+ break;
+
+ case DHCP_OPTION_DOMAIN_NAME:
+ if (len >= 1) {
+ free(lease->domainname);
+ lease->domainname = strndup((const char *)option, len);
+ }
+
+ break;
+
+ case DHCP_OPTION_HOST_NAME:
+ if (len >= 1) {
+ free(lease->hostname);
+ lease->hostname = strndup((const char *)option, len);
+ }
+
+ break;
+
+ case DHCP_OPTION_RENEWAL_T1_TIME:
+ if (len == 4) {
+ memcpy(&val, option, 4);
+ lease->t1 = be32toh(val);
+ }
+
+ break;
+
+ case DHCP_OPTION_REBINDING_T2_TIME:
+ if (len == 4) {
+ memcpy(&val, option, 4);
+ lease->t2 = be32toh(val);
+ }
+
+ break;
+ }
+
+ return 0;
+}
+
+int dhcp_lease_new(sd_dhcp_lease **ret) {
+ _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL;
+
+ lease = new0(sd_dhcp_lease, 1);
+ if (!lease)
+ return -ENOMEM;
+
+ lease->n_ref = REFCNT_INIT;
+
+ *ret = lease;
+ lease = NULL;
+
+ return 0;
+}
diff --git a/src/libsystemd-dhcp/dhcp-lease.h b/src/libsystemd-dhcp/dhcp-lease.h
new file mode 100644
index 0000000000..87323dcb37
--- /dev/null
+++ b/src/libsystemd-dhcp/dhcp-lease.h
@@ -0,0 +1,57 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright (C) 2013 Intel Corporation. All rights reserved.
+ Copyright (C) 2014 Tom Gundersen
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 of the License, or
+ (at your option) any later version.
+
+ systemd is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <stdint.h>
+#include <linux/if_packet.h>
+
+#include "socket-util.h"
+#include "refcnt.h"
+
+#include "dhcp-protocol.h"
+
+#include "sd-dhcp-client.h"
+
+struct sd_dhcp_lease {
+ RefCount n_ref;
+
+ uint32_t t1;
+ uint32_t t2;
+ uint32_t lifetime;
+ be32_t address;
+ be32_t server_address;
+ be32_t subnet_mask;
+ be32_t router;
+ struct in_addr *dns;
+ size_t dns_size;
+ uint16_t mtu;
+ char *domainname;
+ char *hostname;
+};
+
+int dhcp_lease_new(sd_dhcp_lease **ret);
+int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
+ void *user_data);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(sd_dhcp_lease*, sd_dhcp_lease_unref);
+#define _cleanup_dhcp_lease_unref_ _cleanup_(sd_dhcp_lease_unrefp)
diff --git a/src/libsystemd-dhcp/sd-dhcp-client.c b/src/libsystemd-dhcp/sd-dhcp-client.c
index 3b3785809e..72998bc6cb 100644
--- a/src/libsystemd-dhcp/sd-dhcp-client.c
+++ b/src/libsystemd-dhcp/sd-dhcp-client.c
@@ -28,37 +28,12 @@
#include "list.h"
#include "dhcp-protocol.h"
+#include "dhcp-lease.h"
#include "dhcp-internal.h"
#include "sd-dhcp-client.h"
#define DHCP_CLIENT_MIN_OPTIONS_SIZE 312
-#define client_state_machine_check(s, r) \
- do { \
- if (s != DHCP_STATE_BOUND && \
- s != DHCP_STATE_RENEWING && \
- s != DHCP_STATE_REBINDING) { \
- return (r); \
- } \
- } while (false)
-
-struct DHCPLease {
- uint32_t t1;
- uint32_t t2;
- uint32_t lifetime;
- be32_t address;
- be32_t server_address;
- be32_t subnet_mask;
- be32_t router;
- struct in_addr *dns;
- size_t dns_size;
- uint16_t mtu;
- char *domainname;
- char *hostname;
-};
-
-typedef struct DHCPLease DHCPLease;
-
struct sd_dhcp_client {
DHCPState state;
sd_event *event;
@@ -83,7 +58,7 @@ struct sd_dhcp_client {
sd_event_source *timeout_expire;
sd_dhcp_client_cb_t cb;
void *userdata;
- DHCPLease *lease;
+ sd_dhcp_lease *lease;
};
static const uint8_t default_req_opts[] = {
@@ -172,93 +147,16 @@ int sd_dhcp_client_set_mac(sd_dhcp_client *client,
return 0;
}
-int sd_dhcp_client_get_address(sd_dhcp_client *client, struct in_addr *addr) {
- assert_return(client, -EINVAL);
- assert_return(addr, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- addr->s_addr = client->lease->address;
-
- return 0;
-}
-
-int sd_dhcp_client_get_mtu(sd_dhcp_client *client, uint16_t *mtu) {
- assert_return(client, -EINVAL);
- assert_return(mtu, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- if (client->lease->mtu)
- *mtu = client->lease->mtu;
- else
- return -ENOENT;
-
- return 0;
-}
-
-int sd_dhcp_client_get_dns(sd_dhcp_client *client, struct in_addr **addr, size_t *addr_size) {
- assert_return(client, -EINVAL);
- assert_return(addr, -EINVAL);
- assert_return(addr_size, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- if (client->lease->dns_size) {
- *addr_size = client->lease->dns_size;
- *addr = client->lease->dns;
- } else
- return -ENOENT;
-
- return 0;
-}
-
-int sd_dhcp_client_get_domainname(sd_dhcp_client *client, const char **domainname) {
+int sd_dhcp_client_get_lease(sd_dhcp_client *client, sd_dhcp_lease **ret) {
assert_return(client, -EINVAL);
- assert_return(domainname, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- if (client->lease->domainname)
- *domainname = client->lease->domainname;
- else
- return -ENOENT;
-
- return 0;
-}
-
-int sd_dhcp_client_get_hostname(sd_dhcp_client *client, const char **hostname) {
- assert_return(client, -EINVAL);
- assert_return(hostname, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- if (client->lease->hostname)
- *hostname = client->lease->hostname;
- else
- return -ENOENT;
-
- return 0;
-}
-
-int sd_dhcp_client_get_router(sd_dhcp_client *client, struct in_addr *addr) {
- assert_return(client, -EINVAL);
- assert_return(addr, -EINVAL);
-
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
-
- addr->s_addr = client->lease->router;
-
- return 0;
-}
-
-int sd_dhcp_client_get_netmask(sd_dhcp_client *client, struct in_addr *addr) {
- assert_return(client, -EINVAL);
- assert_return(addr, -EINVAL);
+ assert_return(ret, -EINVAL);
- client_state_machine_check (client->state, -EADDRNOTAVAIL);
+ if (client->state != DHCP_STATE_BOUND &&
+ client->state != DHCP_STATE_RENEWING &&
+ client->state != DHCP_STATE_REBINDING)
+ return -EADDRNOTAVAIL;
- addr->s_addr = client->lease->subnet_mask;
+ *ret = sd_dhcp_lease_ref(client->lease);
return 0;
}
@@ -270,19 +168,6 @@ static int client_notify(sd_dhcp_client *client, int event) {
return 0;
}
-static void lease_free(DHCPLease *lease) {
- if (!lease)
- return;
-
- free(lease->hostname);
- free(lease->domainname);
- free(lease->dns);
- free(lease);
-}
-
-DEFINE_TRIVIAL_CLEANUP_FUNC(DHCPLease*, lease_free);
-#define _cleanup_lease_free_ _cleanup_(lease_freep)
-
static int client_stop(sd_dhcp_client *client, int error) {
assert_return(client, -EINVAL);
@@ -307,10 +192,8 @@ static int client_stop(sd_dhcp_client *client, int error) {
client->secs = 0;
client->state = DHCP_STATE_INIT;
- if (client->lease) {
- lease_free(client->lease);
- client->lease = NULL;
- }
+ if (client->lease)
+ client->lease = sd_dhcp_lease_unref(client->lease);
return 0;
}
@@ -721,106 +604,6 @@ static int client_timeout_t1(sd_event_source *s, uint64_t usec, void *userdata)
return client_initialize_events(client, usec);
}
-static int client_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
- void *user_data) {
- DHCPLease *lease = user_data;
- be32_t val;
-
- switch(code) {
-
- case DHCP_OPTION_IP_ADDRESS_LEASE_TIME:
- if (len == 4) {
- memcpy(&val, option, 4);
- lease->lifetime = be32toh(val);
- }
-
- break;
-
- case DHCP_OPTION_SERVER_IDENTIFIER:
- if (len >= 4)
- memcpy(&lease->server_address, option, 4);
-
- break;
-
- case DHCP_OPTION_SUBNET_MASK:
- if (len >= 4)
- memcpy(&lease->subnet_mask, option, 4);
-
- break;
-
- case DHCP_OPTION_ROUTER:
- if (len >= 4)
- memcpy(&lease->router, option, 4);
-
- break;
-
- case DHCP_OPTION_DOMAIN_NAME_SERVER:
- if (len && !(len % 4)) {
- unsigned i;
-
- lease->dns_size = len / 4;
-
- free(lease->dns);
- lease->dns = new0(struct in_addr, lease->dns_size);
- if (!lease->dns)
- return -ENOMEM;
-
- for (i = 0; i < lease->dns_size; i++) {
- memcpy(&lease->dns[i].s_addr, option + 4 * i, 4);
- }
- }
-
- break;
-
- case DHCP_OPTION_INTERFACE_MTU:
- if (len >= 2) {
- be16_t mtu;
-
- memcpy(&mtu, option, 2);
- lease->mtu = be16toh(mtu);
-
- if (lease->mtu < 68)
- lease->mtu = 0;
- }
-
- break;
-
- case DHCP_OPTION_DOMAIN_NAME:
- if (len >= 1) {
- free(lease->domainname);
- lease->domainname = strndup((const char *)option, len);
- }
-
- break;
-
- case DHCP_OPTION_HOST_NAME:
- if (len >= 1) {
- free(lease->hostname);
- lease->hostname = strndup((const char *)option, len);
- }
-
- break;
-
- case DHCP_OPTION_RENEWAL_T1_TIME:
- if (len == 4) {
- memcpy(&val, option, 4);
- lease->t1 = be32toh(val);
- }
-
- break;
-
- case DHCP_OPTION_REBINDING_T2_TIME:
- if (len == 4) {
- memcpy(&val, option, 4);
- lease->t2 = be32toh(val);
- }
-
- break;
- }
-
- return 0;
-}
-
static int client_verify_headers(sd_dhcp_client *client, DHCPPacket *message,
size_t len) {
size_t hdrlen;
@@ -864,19 +647,19 @@ static int client_verify_headers(sd_dhcp_client *client, DHCPPacket *message,
static int client_receive_offer(sd_dhcp_client *client, DHCPPacket *offer,
size_t len) {
- _cleanup_lease_free_ DHCPLease *lease = NULL;
+ _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL;
int r;
r = client_verify_headers(client, offer, len);
if (r < 0)
return r;
- lease = new0(DHCPLease, 1);
- if (!lease)
- return -ENOMEM;
+ r = dhcp_lease_new(&lease);
+ if (r < 0)
+ return r;
len = len - DHCP_IP_UDP_SIZE;
- r = dhcp_option_parse(&offer->dhcp, len, client_parse_options,
+ r = dhcp_option_parse(&offer->dhcp, len, dhcp_lease_parse_options,
lease);
if (r != DHCP_OFFER)
return -ENOMSG;
@@ -899,7 +682,7 @@ static int client_receive_ack(sd_dhcp_client *client, const uint8_t *buf,
size_t len) {
DHCPPacket *ack;
DHCPMessage *dhcp;
- _cleanup_lease_free_ DHCPLease *lease = NULL;
+ _cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL;
int r;
if (client->state == DHCP_STATE_RENEWING) {
@@ -915,11 +698,11 @@ static int client_receive_ack(sd_dhcp_client *client, const uint8_t *buf,
len -= DHCP_IP_UDP_SIZE;
}
- lease = new0(DHCPLease, 1);
- if (!lease)
- return -ENOMEM;
+ r = dhcp_lease_new(&lease);
+ if (r < 0)
+ return r;
- r = dhcp_option_parse(dhcp, len, client_parse_options, lease);
+ r = dhcp_option_parse(dhcp, len, dhcp_lease_parse_options, lease);
if (r == DHCP_NAK)
return DHCP_EVENT_NO_LEASE;
@@ -941,7 +724,7 @@ static int client_receive_ack(sd_dhcp_client *client, const uint8_t *buf,
r = DHCP_EVENT_IP_CHANGE;
}
- lease_free(client->lease);
+ client->lease = sd_dhcp_lease_unref(client->lease);
}
client->lease = lease;
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);
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index a007b0485f..1b3e71ab0e 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -364,12 +364,12 @@ int manager_update_resolv_conf(Manager *m) {
"# static file or a different symlink.\n\n", f);
HASHMAP_FOREACH(link, m->links, i) {
- if (link->dhcp) {
+ if (link->dhcp_lease) {
struct in_addr *nameservers;
size_t nameservers_size;
if (link->network->dhcp_dns) {
- r = sd_dhcp_client_get_dns(link->dhcp, &nameservers, &nameservers_size);
+ r = sd_dhcp_lease_get_dns(link->dhcp_lease, &nameservers, &nameservers_size);
if (r >= 0) {
unsigned j;
@@ -379,7 +379,7 @@ int manager_update_resolv_conf(Manager *m) {
}
if (link->network->dhcp_domainname && !domainname) {
- r = sd_dhcp_client_get_domainname(link->dhcp, &domainname);
+ r = sd_dhcp_lease_get_domainname(link->dhcp_lease, &domainname);
if (r >= 0)
fprintf(f, "domain %s\n", domainname);
}
diff --git a/src/network/networkd.h b/src/network/networkd.h
index 831a9cbdd9..e9ca38f597 100644
--- a/src/network/networkd.h
+++ b/src/network/networkd.h
@@ -174,18 +174,15 @@ struct Link {
Network *network;
- Route *dhcp_route;
- Address *dhcp_address;
- Address *dns;
- uint16_t original_mtu;
-
LinkState state;
unsigned addr_messages;
unsigned route_messages;
unsigned enslaving;
- sd_dhcp_client *dhcp;
+ sd_dhcp_client *dhcp_client;
+ sd_dhcp_lease *dhcp_lease;
+ uint16_t original_mtu;
};
struct Manager {
diff --git a/src/systemd/sd-dhcp-client.h b/src/systemd/sd-dhcp-client.h
index e66361193f..87f5adb597 100644
--- a/src/systemd/sd-dhcp-client.h
+++ b/src/systemd/sd-dhcp-client.h
@@ -36,6 +36,7 @@ enum {
};
typedef struct sd_dhcp_client sd_dhcp_client;
+typedef struct sd_dhcp_lease sd_dhcp_lease;
typedef void (*sd_dhcp_client_cb_t)(sd_dhcp_client *client, int event,
void *userdata);
@@ -49,14 +50,17 @@ int sd_dhcp_client_set_request_address(sd_dhcp_client *client,
int sd_dhcp_client_set_index(sd_dhcp_client *client, int interface_index);
int sd_dhcp_client_set_mac(sd_dhcp_client *client,
const struct ether_addr *addr);
-
-int sd_dhcp_client_get_address(sd_dhcp_client *client, struct in_addr *addr);
-int sd_dhcp_client_get_netmask(sd_dhcp_client *client, struct in_addr *addr);
-int sd_dhcp_client_get_router(sd_dhcp_client *client, struct in_addr *addr);
-int sd_dhcp_client_get_dns(sd_dhcp_client *client, struct in_addr **addr, size_t *addr_size);
-int sd_dhcp_client_get_mtu(sd_dhcp_client *client, uint16_t *mtu);
-int sd_dhcp_client_get_domainname(sd_dhcp_client *client, const char **domainname);
-int sd_dhcp_client_get_hostname(sd_dhcp_client *client, const char **hostname);
+int sd_dhcp_client_get_lease(sd_dhcp_client *client, sd_dhcp_lease **ret);
+
+sd_dhcp_lease *sd_dhcp_lease_ref(sd_dhcp_lease *lease);
+sd_dhcp_lease *sd_dhcp_lease_unref(sd_dhcp_lease *lease);
+int sd_dhcp_lease_get_address(sd_dhcp_lease *lease, struct in_addr *addr);
+int sd_dhcp_lease_get_netmask(sd_dhcp_lease *lease, struct in_addr *addr);
+int sd_dhcp_lease_get_router(sd_dhcp_lease *lease, struct in_addr *addr);
+int sd_dhcp_lease_get_dns(sd_dhcp_lease *lease, struct in_addr **addr, size_t *addr_size);
+int sd_dhcp_lease_get_mtu(sd_dhcp_lease *lease, uint16_t *mtu);
+int sd_dhcp_lease_get_domainname(sd_dhcp_lease *lease, const char **domainname);
+int sd_dhcp_lease_get_hostname(sd_dhcp_lease *lease, const char **hostname);
int sd_dhcp_client_stop(sd_dhcp_client *client);
int sd_dhcp_client_start(sd_dhcp_client *client);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-09 23:24:12 +0000