sd-network: DHCPv4 Add support to send and receive LPR servers.

7 files changed, 55 insertions, 2 deletions

diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h
index 5cbebb4a34..67a77eb098 100644
--- a/src/libsystemd-network/dhcp-lease-internal.h
+++ b/src/libsystemd-network/dhcp-lease-internal.h
@@ -67,6 +67,9 @@ struct sd_dhcp_lease {
         struct in_addr *smtp_server;
         size_t smtp_server_size;
 
+        struct in_addr *lpr_server;
+        size_t lpr_server_size;
+
         struct sd_dhcp_route *static_route;
         size_t static_route_size, static_route_allocated;
 
diff --git a/src/libsystemd-network/dhcp-server-internal.h b/src/libsystemd-network/dhcp-server-internal.h
index 1b42712479..a45167b198 100644
--- a/src/libsystemd-network/dhcp-server-internal.h
+++ b/src/libsystemd-network/dhcp-server-internal.h
@@ -55,8 +55,8 @@ struct sd_dhcp_server {
 
         char *timezone;
 
-        struct in_addr *ntp, *dns, *sip, *pop3_server, *smtp_server;
-        unsigned n_ntp, n_dns, n_sip, n_pop3_server, n_smtp_server;
+        struct in_addr *ntp, *dns, *sip, *pop3_server, *smtp_server, *lpr_server;
+        unsigned n_ntp, n_dns, n_sip, n_pop3_server, n_smtp_server, n_lpr_server;
 
         OrderedHashmap *extra_options;
         OrderedHashmap *vendor_options;
diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index 5154af2304..abb2018810 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -140,6 +140,13 @@ int sd_dhcp_lease_get_servers(
                 *addr = lease->smtp_server;
                 return (int) lease->smtp_server_size;
 
+        case SD_DHCP_LEASE_LPR_SERVERS:
+                if (lease->lpr_server_size <= 0)
+                        return -ENODATA;
+
+                *addr = lease->lpr_server;
+                return (int) lease->lpr_server_size;
+
         default:
                 log_debug("Uknown DHCP lease info item %d.", what);
                 return -ENXIO;
@@ -161,6 +168,9 @@ int sd_dhcp_lease_get_pop3_server(sd_dhcp_lease *lease, const struct in_addr **a
 int sd_dhcp_lease_get_smtp_server(sd_dhcp_lease *lease, const struct in_addr **addr) {
         return sd_dhcp_lease_get_servers(lease, SD_DHCP_LEASE_SMTP_SERVERS, addr);
 }
+int sd_dhcp_lease_get_lpr_servers(sd_dhcp_lease *lease, const struct in_addr **addr) {
+        return sd_dhcp_lease_get_servers(lease, SD_DHCP_LEASE_LPR_SERVERS, addr);
+}
 
 int sd_dhcp_lease_get_domainname(sd_dhcp_lease *lease, const char **domainname) {
         assert_return(lease, -EINVAL);
@@ -314,6 +324,7 @@ static sd_dhcp_lease *dhcp_lease_free(sd_dhcp_lease *lease) {
         free(lease->sip);
         free(lease->pop3_server);
         free(lease->smtp_server);
+        free(lease->lpr_server);
         free(lease->static_route);
         free(lease->client_id);
         free(lease->vendor_specific);
@@ -648,6 +659,12 @@ int dhcp_lease_parse_options(uint8_t code, uint8_t len, const void *option, void
                         log_debug_errno(r, "Failed to parse SMTP server, ignoring: %m");
                 break;
 
+        case SD_DHCP_OPTION_LPR_SERVER:
+                r = lease_parse_in_addrs(option, len, &lease->lpr_server, &lease->lpr_server_size);
+                if (r < 0)
+                        log_debug_errno(r, "Failed to parse LPR server, ignoring: %m");
+                break;
+
         case SD_DHCP_OPTION_STATIC_ROUTE:
                 r = lease_parse_routes(option, len, &lease->static_route, &lease->static_route_size, &lease->static_route_allocated);
                 if (r < 0)
@@ -1086,6 +1103,7 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
                 *sip = NULL,
                 *pop3_server = NULL,
                 *smtp_server = NULL,
+                *lpr_server = NULL,
                 *mtu = NULL,
                 *routes = NULL,
                 *domains = NULL,
@@ -1117,6 +1135,7 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
                            "SIP", &sip,
                            "POP3_SERVERS", &pop3_server,
                            "SMTP_SERVERS", &smtp_server,
+                           "LPR_SERVERS", &lpr_server,
                            "MTU", &mtu,
                            "DOMAINNAME", &lease->domainname,
                            "HOSTNAME", &lease->hostname,
@@ -1245,6 +1264,15 @@ int dhcp_lease_load(sd_dhcp_lease **ret, const char *lease_file) {
                         lease->smtp_server_size = r;
         }
 
+        if (lpr_server) {
+                r = deserialize_in_addrs(&lease->lpr_server, lpr_server);
+                if (r < 0)
+                        log_debug_errno(r, "Failed to deserialize LPR server %s, ignoring: %m", lpr_server);
+                else
+                        lease->lpr_server_size = r;
+        }
+
+
         if (mtu) {
                 r = safe_atou16(mtu, &lease->mtu);
                 if (r < 0)
diff --git a/src/libsystemd-network/sd-dhcp-server.c b/src/libsystemd-network/sd-dhcp-server.c
index a4dcddd95d..e197f1ea72 100644
--- a/src/libsystemd-network/sd-dhcp-server.c
+++ b/src/libsystemd-network/sd-dhcp-server.c
@@ -142,6 +142,7 @@ static sd_dhcp_server *dhcp_server_free(sd_dhcp_server *server) {
         free(server->sip);
         free(server->pop3_server);
         free(server->smtp_server);
+        free(server->lpr_server);
 
         hashmap_free(server->leases_by_client_id);
 
@@ -533,6 +534,15 @@ static int server_send_ack(sd_dhcp_server *server, DHCPRequest *req,
                         return r;
         }
 
+        if (server->n_lpr_server > 0) {
+                r = dhcp_option_append(
+                                &packet->dhcp, req->max_optlen, &offset, 0,
+                                SD_DHCP_OPTION_LPR_SERVER,
+                                sizeof(struct in_addr) * server->n_lpr_server, server->lpr_server);
+                if (r < 0)
+                        return r;
+        }
+
         if (server->timezone) {
                 r = dhcp_option_append(
                                 &packet->dhcp, req->max_optlen, &offset, 0,
@@ -1161,6 +1171,11 @@ int sd_dhcp_server_set_servers(
                 n_a = &server->n_smtp_server;
                 break;
 
+        case SD_DHCP_LEASE_LPR_SERVERS:
+                a = &server->lpr_server;
+                n_a = &server->n_lpr_server;
+                break;
+
         default:
                 log_debug("Uknown DHCP lease info item %d.", what);
                 return -ENXIO;
@@ -1199,6 +1214,9 @@ int sd_dhcp_server_set_pop3_server(sd_dhcp_server *server, const struct in_addr
 int sd_dhcp_server_set_smtp_server(sd_dhcp_server *server, const struct in_addr smtp[], unsigned n) {
         return sd_dhcp_server_set_servers(server, SD_DHCP_LEASE_SMTP_SERVERS, smtp, n);
 }
+int sd_dhcp_server_set_lpr(sd_dhcp_server *server, const struct in_addr lpr[], unsigned n) {
+        return sd_dhcp_server_set_servers(server, SD_DHCP_LEASE_LPR_SERVERS, lpr, n);
+}
 
 int sd_dhcp_server_set_emit_router(sd_dhcp_server *server, int enabled) {
         assert_return(server, -EINVAL);
diff --git a/src/systemd/sd-dhcp-client.h b/src/systemd/sd-dhcp-client.h
index da2aa6c73b..032afc9f12 100644
--- a/src/systemd/sd-dhcp-client.h
+++ b/src/systemd/sd-dhcp-client.h
@@ -48,6 +48,7 @@ enum {
         SD_DHCP_OPTION_TIME_OFFSET                 = 2,
         SD_DHCP_OPTION_ROUTER                      = 3,
         SD_DHCP_OPTION_DOMAIN_NAME_SERVER          = 6,
+        SD_DHCP_OPTION_LPR_SERVER                  = 9,
         SD_DHCP_OPTION_HOST_NAME                   = 12,
         SD_DHCP_OPTION_BOOT_FILE_SIZE              = 13,
         SD_DHCP_OPTION_DOMAIN_NAME                 = 15,
diff --git a/src/systemd/sd-dhcp-lease.h b/src/systemd/sd-dhcp-lease.h
index 70544e13f1..a3964d5989 100644
--- a/src/systemd/sd-dhcp-lease.h
+++ b/src/systemd/sd-dhcp-lease.h
@@ -39,6 +39,7 @@ typedef enum sd_dhcp_lease_info {
         SD_DHCP_LEASE_SIP_SERVERS,
         SD_DHCP_LEASE_POP3_SERVERS,
         SD_DHCP_LEASE_SMTP_SERVERS,
+        SD_DHCP_LEASE_LPR_SERVERS,
         _SD_DHCP_LEASE_INFO_MAX,
 } sd_dhcp_lease_info;
 
@@ -57,6 +58,7 @@ int sd_dhcp_lease_get_ntp(sd_dhcp_lease *lease, const struct in_addr **addr);
 int sd_dhcp_lease_get_sip(sd_dhcp_lease *lease, const struct in_addr **addr);
 int sd_dhcp_lease_get_pop3_server(sd_dhcp_lease *lease, const struct in_addr **addr);
 int sd_dhcp_lease_get_smtp_server(sd_dhcp_lease *lease, const struct in_addr **addr);
+int sd_dhcp_lease_get_lpr_servers(sd_dhcp_lease *lease, const struct in_addr **addr);
 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_search_domains(sd_dhcp_lease *lease, char ***domains);
diff --git a/src/systemd/sd-dhcp-server.h b/src/systemd/sd-dhcp-server.h
index 4c7938ca70..017d2d9cbb 100644
--- a/src/systemd/sd-dhcp-server.h
+++ b/src/systemd/sd-dhcp-server.h
@@ -56,6 +56,7 @@ int sd_dhcp_server_set_servers(
                 const struct in_addr addresses[],
                 unsigned n_addresses);
 
+int sd_dhcp_server_set_lpr(sd_dhcp_server *server, const struct in_addr lpr[], unsigned n);
 int sd_dhcp_server_set_dns(sd_dhcp_server *server, const struct in_addr dns[], unsigned n);
 int sd_dhcp_server_set_ntp(sd_dhcp_server *server, const struct in_addr ntp[], unsigned n);
 int sd_dhcp_server_set_sip(sd_dhcp_server *server, const struct in_addr sip[], unsigned n);