summaryrefslogtreecommitdiffstats
path: root/src/plugins/dhcp/dhcp6_packet.h
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2019-10-07 00:39:28 -0700
committerDave Barach <openvpp@barachs.net>2019-10-07 19:33:39 +0000
commit02bfd641b69aab83397e217b9ca4e35a6aab05c8 (patch)
tree665e232425f90d0662bc3d29729e11bb5e8727fc /src/plugins/dhcp/dhcp6_packet.h
parent2c41a61d5fc87737b9b46b88cb9271d0f987721e (diff)
dhcp: Move to plugin
Type: feature Change-Id: I3fe27a8ef577741d9a5c4f090ec91cf68fb44fe3 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/dhcp/dhcp6_packet.h')
-rw-r--r--src/plugins/dhcp/dhcp6_packet.h271
1 files changed, 271 insertions, 0 deletions
diff --git a/src/plugins/dhcp/dhcp6_packet.h b/src/plugins/dhcp/dhcp6_packet.h
new file mode 100644
index 00000000000..d5467952a64
--- /dev/null
+++ b/src/plugins/dhcp/dhcp6_packet.h
@@ -0,0 +1,271 @@
+#ifndef included_vnet_dhcp6_packet_h
+#define included_vnet_dhcp6_packet_h
+
+/*
+ * DHCP packet format
+ *
+ * Copyright (c) 2013 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vnet/ip/ip6_packet.h>
+
+// #define DHCP_VRF_NAME_MAX_LEN L3VM_MAX_NAME_STR_LEN
+// #define DHCPV6_MAX_VRF_NAME_LEN L3VM_MAX_NAME_STR_LEN
+#define DHCP_MAX_RELAY_ADDR 16
+#define PROTO_UDP 17
+#define DHCPV6_CLIENT_PORT 546
+#define DHCPV6_SERVER_PORT 547
+#define HOP_COUNT_LIMIT 32
+#define DHCPV6_CISCO_ENT_NUM 9
+
+/*
+ * DHCPv6 message types
+ */
+typedef enum dhcpv6_msg_type_
+{
+ DHCPV6_MSG_SOLICIT = 1,
+ DHCPV6_MSG_ADVERTISE = 2,
+ DHCPV6_MSG_REQUEST = 3,
+ DHCPV6_MSG_CONFIRM = 4,
+ DHCPV6_MSG_RENEW = 5,
+ DHCPV6_MSG_REBIND = 6,
+ DHCPV6_MSG_REPLY = 7,
+ DHCPV6_MSG_RELEASE = 8,
+ DHCPV6_MSG_DECLINE = 9,
+ DHCPV6_MSG_RECONFIGURE = 10,
+ DHCPV6_MSG_INFORMATION_REQUEST = 11,
+ DHCPV6_MSG_RELAY_FORW = 12,
+ 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
+{
+#define _(a,b,c) DHCPV6_OPTION_##a = b,
+ dhcpv6_foreach_option
+#undef _
+ DHCPV6_OPTION_MAX
+};
+
+/*
+* DHCPv6 status codes
+ */
+enum
+{
+ DHCPV6_STATUS_SUCCESS = 0,
+ DHCPV6_STATUS_UNSPEC_FAIL = 1,
+ DHCPV6_STATUS_NOADDRS_AVAIL = 2,
+ DHCPV6_STATUS_NO_BINDING = 3,
+ DHCPV6_STATUS_NOT_ONLINK = 4,
+ DHCPV6_STATUS_USE_MULTICAST = 5,
+ DHCPV6_STATUS_NOPREFIX_AVAIL = 6,
+};
+
+/*
+ * DHCPv6 DUID types
+ */
+enum
+{
+ DHCPV6_DUID_LLT = 1, /* DUID Based on Link-layer Address Plus Time */
+ DHCPV6_DUID_EN = 2, /* DUID Based on Enterprise Number */
+ DHCPV6_DUID_LL = 3, /* DUID Based on Link-layer Address */
+};
+
+//Structure for DHCPv6 payload from client
+typedef struct dhcpv6_hdr_
+{
+ 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;
+ u32 pkt_len;
+ u32 dhcpv6_len; //DHCPv6 payload load
+// if_ordinal iod;
+ u32 if_index;
+ u32 ctx_id;
+ char ctx_name[32+1];
+ u8 dhcp_msg_type;
+}) dhcpv6_relay_ctx_t;
+/* *INDENT-ON* */
+
+//Structure for DHCPv6 RELAY-FORWARD and DHCPv6 RELAY-REPLY pkts
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct dhcpv6_relay_hdr_ {
+ u8 msg_type;
+ u8 hop_count;
+ ip6_address_t link_addr;
+ ip6_address_t peer_addr;
+ u8 data[0];
+}) dhcpv6_relay_hdr_t;
+/* *INDENT-ON* */
+
+typedef enum dhcp_stats_action_type_
+{
+ DHCP_STATS_ACTION_FORWARDED = 1,
+ DHCP_STATS_ACTION_RECEIVED,
+ DHCP_STATS_ACTION_DROPPED
+} dhcp_stats_action_type_t;
+//Generic counters for a packet
+typedef struct dhcp_stats_counters_
+{
+ u64 rx_pkts; //counter for received pkts
+ u64 tx_pkts; //counter for forwarded pkts
+ u64 drops; //counter for dropped pkts
+} dhcp_stats_counters_t;
+
+
+typedef enum dhcpv6_stats_drop_reason_
+{
+ DHCPV6_RELAY_PKT_DROP_RELAYDISABLE = 1,
+ DHCPV6_RELAY_PKT_DROP_MAX_HOPS,
+ DHCPV6_RELAY_PKT_DROP_VALIDATION_FAIL,
+ DHCPV6_RELAY_PKT_DROP_UNKNOWN_OP_INTF,
+ DHCPV6_RELAY_PKT_DROP_BAD_CONTEXT,
+ DHCPV6_RELAY_PKT_DROP_OPT_INSERT_FAIL,
+ 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;
+ u16 length;
+ u8 data[0];
+}) dhcpv6_option_t;
+/* *INDENT-ON* */
+
+/* *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* */
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ dhcpv6_option_t opt;
+ u8 vss_type;
+ u8 data[0];
+}) dhcpv6_vss_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ dhcpv6_option_t opt;
+ u32 ent_num;
+ u32 rmt_id;
+}) dhcpv6_rmt_id_t;
+/* *INDENT-ON* */
+
+/* *INDENT-OFF* */
+typedef CLIB_PACKED (struct {
+ dhcpv6_option_t opt;
+ u16 link_type;
+ u8 data[6]; // data[0]:data[5]: MAC address
+}) 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; ip6_address_t addr; u32 preferred;
+ u32 valid;
+ }) dhcpv6_ia_opt_addr_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 */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */