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-rw-r--r--src/libsystemd-network/dhcp-lease-internal.h5
-rw-r--r--src/libsystemd-network/sd-dhcp-client.c16
-rw-r--r--src/libsystemd-network/sd-dhcp-lease.c58
-rw-r--r--src/systemd/sd-dhcp-lease.h2
4 files changed, 80 insertions, 1 deletions
diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h
index 8806351eb2..9e184ac4b5 100644
--- a/src/libsystemd-network/dhcp-lease-internal.h
+++ b/src/libsystemd-network/dhcp-lease-internal.h
@@ -70,6 +70,8 @@ struct sd_dhcp_lease {
char *domainname;
char *hostname;
char *root_path;
+ uint8_t *client_id;
+ size_t client_id_len;
};
int dhcp_lease_new(sd_dhcp_lease **ret);
@@ -78,5 +80,8 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const uint8_t *option,
int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease);
+int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const uint8_t *client_id,
+ size_t client_id_len);
+
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-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index 8503f19c27..b2b72befbf 100644
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -1029,6 +1029,14 @@ static int client_handle_offer(sd_dhcp_client *client, DHCPMessage *offer,
if (r < 0)
return r;
+ if (client->client_id_len) {
+ r = dhcp_lease_set_client_id(lease,
+ (uint8_t *) &client->client_id.raw,
+ client->client_id_len);
+ if (r < 0)
+ return r;
+ }
+
r = dhcp_option_parse(offer, len, dhcp_lease_parse_options, lease);
if (r != DHCP_OFFER) {
log_dhcp_client(client, "received message was not an OFFER, ignoring");
@@ -1088,6 +1096,14 @@ static int client_handle_ack(sd_dhcp_client *client, DHCPMessage *ack,
if (r < 0)
return r;
+ if (client->client_id_len) {
+ r = dhcp_lease_set_client_id(lease,
+ (uint8_t *) &client->client_id.raw,
+ client->client_id_len);
+ if (r < 0)
+ return r;
+ }
+
r = dhcp_option_parse(ack, len, dhcp_lease_parse_options, lease);
if (r == DHCP_NAK) {
log_dhcp_client(client, "NAK");
diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index 1a6add0fa3..f046ac5672 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -199,6 +199,7 @@ sd_dhcp_lease *sd_dhcp_lease_unref(sd_dhcp_lease *lease) {
free(lease->dns);
free(lease->ntp);
free(lease->static_route);
+ free(lease->client_id);
free(lease);
}
@@ -585,6 +586,8 @@ int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
_cleanup_fclose_ FILE *f = NULL;
struct in_addr address;
const struct in_addr *addresses;
+ const uint8_t *client_id;
+ size_t client_id_len;
const char *string;
uint16_t mtu;
struct sd_dhcp_route *routes;
@@ -658,6 +661,18 @@ int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file) {
if (r >= 0)
serialize_dhcp_routes(f, "ROUTES", routes, r);
+ r = sd_dhcp_lease_get_client_id(lease, &client_id, &client_id_len);
+ if (r >= 0) {
+ _cleanup_free_ char *client_id_hex;
+
+ client_id_hex = hexmem (client_id, client_id_len);
+ if (!client_id_hex) {
+ r = -ENOMEM;
+ goto finish;
+ }
+ fprintf(f, "CLIENTID=%s\n", client_id_hex);
+ }
+
r = 0;
fflush(f);
@@ -679,7 +694,8 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
_cleanup_dhcp_lease_unref_ sd_dhcp_lease *lease = NULL;
_cleanup_free_ char *address = NULL, *router = NULL, *netmask = NULL,
*server_address = NULL, *next_server = NULL,
- *dns = NULL, *ntp = NULL, *mtu = NULL, *routes = NULL;
+ *dns = NULL, *ntp = NULL, *mtu = NULL,
+ *routes = NULL, *client_id_hex = NULL;
struct in_addr addr;
int r;
@@ -703,6 +719,7 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
"HOSTNAME", &lease->hostname,
"ROOT_PATH", &lease->root_path,
"ROUTES", &routes,
+ "CLIENTID", &client_id_hex,
NULL);
if (r < 0) {
if (r == -ENOENT)
@@ -777,6 +794,16 @@ int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
return r;
}
+ if (client_id_hex) {
+ if (strlen (client_id_hex) % 2)
+ return -EINVAL;
+
+ lease->client_id = unhexmem (client_id_hex, strlen (client_id_hex));
+ if (!lease->client_id)
+ return -ENOMEM;
+ lease->client_id_len = strlen (client_id_hex) / 2;
+ }
+
*ret = lease;
lease = NULL;
@@ -801,3 +828,32 @@ int dhcp_lease_set_default_subnet_mask(sd_dhcp_lease *lease) {
return 0;
}
+
+int sd_dhcp_lease_get_client_id(sd_dhcp_lease *lease, const uint8_t **client_id,
+ size_t *client_id_len) {
+ assert_return(lease, -EINVAL);
+ assert_return(client_id, -EINVAL);
+ assert_return(client_id_len, -EINVAL);
+
+ *client_id = lease->client_id;
+ *client_id_len = lease->client_id_len;
+ return 0;
+}
+
+int dhcp_lease_set_client_id(sd_dhcp_lease *lease, const uint8_t *client_id,
+ size_t client_id_len) {
+ assert_return(lease, -EINVAL);
+ assert_return((!client_id && !client_id_len) ||
+ (client_id && client_id_len), -EINVAL);
+
+ free (lease->client_id);
+ lease->client_id = NULL;
+ lease->client_id_len = 0;
+
+ if (client_id) {
+ lease->client_id = memdup (client_id, client_id_len);
+ lease->client_id_len = client_id_len;
+ }
+
+ return 0;
+}
diff --git a/src/systemd/sd-dhcp-lease.h b/src/systemd/sd-dhcp-lease.h
index 35279075b5..4296b91d8a 100644
--- a/src/systemd/sd-dhcp-lease.h
+++ b/src/systemd/sd-dhcp-lease.h
@@ -45,6 +45,8 @@ 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_lease_get_root_path(sd_dhcp_lease *lease, const char **root_path);
int sd_dhcp_lease_get_routes(sd_dhcp_lease *lease, struct sd_dhcp_route **routesgn);
+int sd_dhcp_lease_get_client_id(sd_dhcp_lease *lease, const uint8_t **client_id,
+ size_t *client_id_len);
int sd_dhcp_lease_save(sd_dhcp_lease *lease, const char *lease_file);
int sd_dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-15 12:29:57 +0000