Implement DHCPv6 PD client (VPP-718, VPP-1050)
Change-Id: I72a1ccdfdd5573335ef78fc01d5268934c73bd31
Signed-off-by: Juraj Sloboda <jsloboda@cisco.com>
diff --git a/src/vnet/dhcp/dhcp6_packet.h b/src/vnet/dhcp/dhcp6_packet.h
index 97a8938..1926154 100644
--- a/src/vnet/dhcp/dhcp6_packet.h
+++ b/src/vnet/dhcp/dhcp6_packet.h
@@ -48,33 +48,42 @@
DHCPV6_MSG_RELAY_REPL = 13,
} dhcpv6_msg_type_t;
+/* Name, code, min payload length */
+#define dhcpv6_foreach_option \
+ _(CLIENTID , 1 , 4 ) \
+ _(SERVERID , 2 , 4 ) \
+ _(IA_NA , 3 , 12) \
+ _(IA_TA , 4 , 4 ) \
+ _(IAADDR , 5 , 24) \
+ _(ORO , 6 , 0 ) \
+ _(PREFERENCE , 7 , 1 ) \
+ _(ELAPSED_TIME , 8 , 2 ) \
+ _(RELAY_MSG , 9 , 0 ) \
+ _(AUTH , 11 , 11) \
+ _(UNICAST , 12 , 16) \
+ _(STATUS_CODE , 13 , 2 ) \
+ _(RAPID_COMMIT , 14 , 0 ) \
+ _(USER_CLASS , 15 , 0 ) \
+ _(VENDOR_CLASS , 16 , 4 ) \
+ _(VENDOR_OPTS , 17 , 4 ) \
+ _(INTERFACE_ID , 18 , 0 ) \
+ _(RECONF_MSG , 19 , 1 ) \
+ _(RECONF_ACCEPT , 20 , 0 ) \
+ _(DNS_SEARCH , 24 , 0 ) \
+ _(IA_PD , 25 , 12) \
+ _(IAPREFIX , 26 , 25) \
+ _(REMOTEID , 37 , 4 ) \
+ _(VSS , 68 , 1 ) \
+ _(CLIENT_LINK_LAYER_ADDRESS, 79 , 2 )
+
/*
* DHCPv6 options types
*/
enum
{
- DHCPV6_OPTION_CLIENTID = 1,
- DHCPV6_OPTION_SERVERID = 2,
- DHCPV6_OPTION_IA_NA = 3,
- DHCPV6_OPTION_IA_TA = 4,
- DHCPV6_OPTION_IAADDR = 5,
- DHCPV6_OPTION_ORO = 6,
- DHCPV6_OPTION_PREFERENCE = 7,
- DHCPV6_OPTION_ELAPSED_TIME = 8,
- DHCPV6_OPTION_RELAY_MSG = 9,
- DHCPV6_OPTION_AUTH = 11,
- DHCPV6_OPTION_UNICAST = 12,
- DHCPV6_OPTION_STATUS_CODE = 13,
- DHCPV6_OPTION_RAPID_COMMIT = 14,
- DHCPV6_OPTION_USER_CLASS = 15,
- DHCPV6_OPTION_VENDOR_CLASS = 16,
- DHCPV6_OPTION_VENDOR_OPTS = 17,
- DHCPV6_OPTION_INTERFACE_ID = 18, // relay agent fills this
- DHCPV6_OPTION_RECONF_MSG = 19,
- DHCPV6_OPTION_RECONF_ACCEPT = 20,
- DHCPV6_OPTION_REMOTEID = 37, // relay agent fills this
- DHCPV6_OPTION_VSS = 68, // relay agent fills this
- DHCPV6_OPTION_CLIENT_LINK_LAYER_ADDRESS = 79,
+#define _(a,b,c) DHCPV6_OPTION_##a = b,
+ dhcpv6_foreach_option
+#undef _
DHCPV6_OPTION_MAX
};
@@ -89,6 +98,7 @@
DHCPV6_STATUS_NO_BINDING = 3,
DHCPV6_STATUS_NOT_ONLINK = 4,
DHCPV6_STATUS_USE_MULTICAST = 5,
+ DHCPV6_STATUS_NOPREFIX_AVAIL = 6,
};
/*
@@ -104,16 +114,11 @@
//Structure for DHCPv6 payload from client
typedef struct dhcpv6_hdr_
{
- union
- {
- u8 msg_type; //DHCP msg type
- u32 xid; // transaction id
- } u;
+ u8 msg_type; //DHCP msg type
+ u8 xid[3]; //Transaction id
u8 data[0];
} dhcpv6_header_t;
-
-
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct dhcpv6_relay_ctx_ {
dhcpv6_header_t *pkt;
@@ -164,6 +169,8 @@
DHCPV6_RELAY_PKT_DROP_REPLY_FROM_CLIENT,
} dhcpv6_stats_drop_reason_t;
+#define dhcpv6_optlen(opt) clib_net_to_host_u16((opt)->length)
+
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
u16 option;
@@ -175,6 +182,13 @@
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
dhcpv6_option_t opt;
+ u16 status_code;
+}) dhcpv6_status_code_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ dhcpv6_option_t opt;
u32 int_idx;
}) dhcpv6_int_id_t;
/* *INDENT-ON* */
@@ -203,6 +217,42 @@
}) dhcpv6_client_mac_t;
/* *INDENT-ON* */
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt; u32 iaid; u32 t1;
+ u32 t2;
+ u8 data[0];
+ }) dhcpv6_ia_header_t;
+
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt; u32 preferred; u32 valid; u8 prefix;
+ ip6_address_t addr;
+ }) dhcpv6_ia_opt_pd_t;
+
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt;
+ u16 options[0];
+ }) dhcpv6_oro_t;
+
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt; u16 elapsed_10ms;
+ }) dhcpv6_elapsed_t;
+
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt; u16 duid_type;
+ u16 hardware_type;
+ }) dhcpv6_duid_t;
+
+typedef CLIB_PACKED (struct
+ {
+ dhcpv6_option_t opt; u16 status_code;
+ u8 message[0];
+ }) dhcpv6_status_t;
+
#endif /* included_vnet_dhcp6_packet_h */