Merge tag 'v230-3.parabola1' into parabola

1 files changed, 16 insertions, 5 deletions

diff --git a/src/libsystemd-network/dhcp-identifier.h b/src/libsystemd-network/dhcp-identifier.h
index 93f06f5938..1cc0f9fb71 100644
--- a/src/libsystemd-network/dhcp-identifier.h
+++ b/src/libsystemd-network/dhcp-identifier.h
@@ -25,32 +25,42 @@
 #include "sparse-endian.h"
 #include "unaligned.h"
 
+typedef enum DUIDType {
+        DUID_TYPE_LLT       = 1,
+        DUID_TYPE_EN        = 2,
+        DUID_TYPE_LL        = 3,
+        DUID_TYPE_UUID      = 4,
+        _DUID_TYPE_MAX,
+        _DUID_TYPE_INVALID  = -1,
+} DUIDType;
+
 /* RFC 3315 section 9.1:
  *      A DUID can be no more than 128 octets long (not including the type code).
  */
 #define MAX_DUID_LEN 128
 
+/* https://tools.ietf.org/html/rfc3315#section-9.1 */
 struct duid {
-        uint16_t type;
+        be16_t type;
         union {
                 struct {
-                        /* DHCP6_DUID_LLT */
+                        /* DUID_TYPE_LLT */
                         uint16_t htype;
                         uint32_t time;
                         uint8_t haddr[0];
                 } _packed_ llt;
                 struct {
-                        /* DHCP6_DUID_EN */
+                        /* DUID_TYPE_EN */
                         uint32_t pen;
                         uint8_t id[8];
                 } _packed_ en;
                 struct {
-                        /* DHCP6_DUID_LL */
+                        /* DUID_TYPE_LL */
                         int16_t htype;
                         uint8_t haddr[0];
                 } _packed_ ll;
                 struct {
-                        /* DHCP6_DUID_UUID */
+                        /* DUID_TYPE_UUID */
                         sd_id128_t uuid;
                 } _packed_ uuid;
                 struct {
@@ -59,5 +69,6 @@ struct duid {
         };
 } _packed_;
 
+int dhcp_validate_duid_len(uint16_t duid_type, size_t duid_len);
 int dhcp_identifier_set_duid_en(struct duid *duid, size_t *len);
 int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id);