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authorNeale Ranns <nranns@cisco.com>2019-09-30 10:53:31 +0000
committerOle Trøan <otroan@employees.org>2019-12-17 10:56:20 +0000
commitcbe25aab3be72154f2c706c39eeba6a77f34450f (patch)
tree131fb53b5ec973be045ffb9e2eb797af01d112a0 /src/vnet/ip/icmp46_packet.h
parent96453fd2417ebd1d69354a7fb692976129cea80e (diff)
ip: Protocol Independent IP Neighbors
Type: feature - ip-neighbour: generic neighbour handling; APIs, DBs, event handling, aging - arp: ARP protocol implementation - ip6-nd; IPv6 neighbor discovery implementation; separate ND, MLD, RA - ip6-link; manage link-local addresses - l2-arp-term; events separated from IP neighbours, since they are not the same. vnet retains just enough education to perform ND/ARP packet construction. arp and ip6-nd to be moved to plugins soon. Change-Id: I88dedd0006b299344f4c7024a0aa5baa6b9a8bbe Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/ip/icmp46_packet.h')
-rw-r--r--src/vnet/ip/icmp46_packet.h223
1 files changed, 93 insertions, 130 deletions
diff --git a/src/vnet/ip/icmp46_packet.h b/src/vnet/ip/icmp46_packet.h
index e761af8bf16..0545046fe60 100644
--- a/src/vnet/ip/icmp46_packet.h
+++ b/src/vnet/ip/icmp46_packet.h
@@ -187,13 +187,15 @@ typedef enum
#undef _
} icmp6_code_t;
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct
- {
- u8 type;
- u8 code;
- /* IP checksum of icmp header plus data which follows. */
- u16 checksum;
- }) icmp46_header_t;
+{
+ u8 type;
+ u8 code;
+ /* IP checksum of icmp header plus data which follows. */
+ u16 checksum;
+}) icmp46_header_t;
+/* *INDENT-ON* */
/* ip6 neighbor discovery */
#define foreach_icmp6_neighbor_discovery_option \
@@ -236,164 +238,125 @@ typedef enum icmp6_neighbor_discovery_option_type
#undef _
} icmp6_neighbor_discovery_option_type_t;
+/* *INDENT-OFF* */
typedef CLIB_PACKED (struct
- {
- /* Option type. */
- u8 type;
- /* Length of this header plus option data in 8 byte units. */
- u8 n_data_u64s;
- /* Option data follows. */
- u8 data[0];
- }) icmp6_neighbor_discovery_option_header_t;
+{
+ /* Option type. */
+ u8 type;
+ /* Length of this header plus option data in 8 byte units. */
+ u8 n_data_u64s;
+ /* Option data follows. */
+ u8 data[0];
+}) icmp6_neighbor_discovery_option_header_t;
typedef CLIB_PACKED (struct
- {
- icmp6_neighbor_discovery_option_header_t header;
- u8 dst_address_length;
- u8 flags;
+{
+ icmp6_neighbor_discovery_option_header_t header;
+ u8 dst_address_length;
+ u8 flags;
#define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_FLAG_ON_LINK (1 << 7)
#define ICMP6_NEIGHBOR_DISCOVERY_PREFIX_INFORMATION_AUTO (1 << 6)
- u32 valid_time;
- u32 preferred_time;
- u32 unused; ip6_address_t dst_address;
- }) icmp6_neighbor_discovery_prefix_information_option_t;
+ u32 valid_time;
+ u32 preferred_time;
+ u32 unused; ip6_address_t dst_address;
+}) icmp6_neighbor_discovery_prefix_information_option_t;
typedef CLIB_PACKED (struct
- {
- u8 type;
- u8 aux_data_len_u32s;
- u16 num_sources;
- ip6_address_t mcast_addr; ip6_address_t source_addr[0];
- }) icmp6_multicast_address_record_t;
-
-typedef CLIB_PACKED (struct
- {
- ip6_hop_by_hop_ext_t ext_hdr;
- ip6_router_alert_option_t alert;
- ip6_padN_option_t pad;
- icmp46_header_t icmp;
- u16 rsvd;
- u16 num_addr_records;
- icmp6_multicast_address_record_t records[0];
- }) icmp6_multicast_listener_report_header_t;
+{
+ u8 type;
+ u8 aux_data_len_u32s;
+ u16 num_sources;
+ ip6_address_t mcast_addr; ip6_address_t source_addr[0];
+}) icmp6_multicast_address_record_t;
typedef CLIB_PACKED (struct
- {
- icmp6_neighbor_discovery_option_header_t header;
- u8 reserved[6];
- /* IP6 header plus payload follows. */
- u8 data[0];
- }) icmp6_neighbor_discovery_redirected_header_option_t;
+{
+ icmp6_neighbor_discovery_option_header_t header;
+ u8 reserved[6];
+ /* IP6 header plus payload follows. */
+ u8 data[0];
+}) icmp6_neighbor_discovery_redirected_header_option_t;
typedef CLIB_PACKED (struct
- {
- icmp6_neighbor_discovery_option_header_t header;
- u16 unused; u32 mtu;
- }) icmp6_neighbor_discovery_mtu_option_t;
+{
+ icmp6_neighbor_discovery_option_header_t header;
+ u16 unused; u32 mtu;
+}) icmp6_neighbor_discovery_mtu_option_t;
typedef CLIB_PACKED (struct
- {
- icmp6_neighbor_discovery_option_header_t header;
- u8 ethernet_address[6];
- })
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t;
+{
+ icmp6_neighbor_discovery_option_header_t header;
+ u8 ethernet_address[6];
+}) icmp6_neighbor_discovery_ethernet_link_layer_address_option_t;
typedef CLIB_PACKED (struct
- {
- icmp6_neighbor_discovery_option_header_t header;
- u8 max_l2_address[6 + 8];
- })
- icmp6_neighbor_discovery_max_link_layer_address_option_t;
+{
+ icmp6_neighbor_discovery_option_header_t header;
+ u8 max_l2_address[6 + 8];
+}) icmp6_neighbor_discovery_max_link_layer_address_option_t;
/* Generic neighbor discover header. Used for router solicitations,
etc. */
typedef CLIB_PACKED (struct
- {
- icmp46_header_t icmp; u32 reserved_must_be_zero;
- }) icmp6_neighbor_discovery_header_t;
+{
+ icmp46_header_t icmp; u32 reserved_must_be_zero;
+}) icmp6_neighbor_discovery_header_t;
/* Router advertisement packet formats. */
typedef CLIB_PACKED (struct
- {
- icmp46_header_t icmp;
- /* Current hop limit to use for outgoing packets. */
- u8 current_hop_limit;
- u8 flags;
+{
+ icmp46_header_t icmp;
+ /* Current hop limit to use for outgoing packets. */
+ u8 current_hop_limit;
+ u8 flags;
#define ICMP6_ROUTER_DISCOVERY_FLAG_ADDRESS_CONFIG_VIA_DHCP (1 << 7)
#define ICMP6_ROUTER_DISCOVERY_FLAG_OTHER_CONFIG_VIA_DHCP (1 << 6)
- /* Zero means unspecified. */
- u16 router_lifetime_in_sec;
- /* Zero means unspecified. */
- u32 neighbor_reachable_time_in_msec;
- /* Zero means unspecified. */
- u32
- time_in_msec_between_retransmitted_neighbor_solicitations;
- /* Options that may follow: source_link_layer_address, mtu, prefix_information. */
- }) icmp6_router_advertisement_header_t;
+ /* Zero means unspecified. */
+ u16 router_lifetime_in_sec;
+ /* Zero means unspecified. */
+ u32 neighbor_reachable_time_in_msec;
+ /* Zero means unspecified. */
+ u32
+ time_in_msec_between_retransmitted_neighbor_solicitations;
+ /* Options that may follow: source_link_layer_address, mtu, prefix_information. */
+}) icmp6_router_advertisement_header_t;
/* Neighbor solicitation/advertisement header. */
typedef CLIB_PACKED (struct
- {
- icmp46_header_t icmp;
- /* Zero for solicitation; flags for advertisement. */
- u32 advertisement_flags;
- /* Set when sent by a router. */
+{
+ icmp46_header_t icmp;
+ /* Zero for solicitation; flags for advertisement. */
+ u32 advertisement_flags;
+ /* Set when sent by a router. */
#define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_ROUTER (1 << 31)
- /* Set when response to solicitation. */
+ /* Set when response to solicitation. */
#define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED (1 << 30)
#define ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE (1 << 29)
- ip6_address_t target_address;
- /* Options that may follow: source_link_layer_address
- (for solicitation) target_link_layer_address (for advertisement). */
- }) icmp6_neighbor_solicitation_or_advertisement_header_t;
+ ip6_address_t target_address;
+ /* Options that may follow: source_link_layer_address
+ (for solicitation) target_link_layer_address (for advertisement). */
+}) icmp6_neighbor_solicitation_or_advertisement_header_t;
typedef CLIB_PACKED (struct
- {
- icmp46_header_t icmp;
- u32 reserved_must_be_zero;
- /* Better next hop to use for given destination. */
- ip6_address_t better_next_hop_address;
- ip6_address_t dst_address;
- /* Options that may follow: target_link_layer_address,
- redirected_header. */
- }) icmp6_redirect_header_t;
+{
+ icmp46_header_t icmp;
+ u32 reserved_must_be_zero;
+ /* Better next hop to use for given destination. */
+ ip6_address_t better_next_hop_address;
+ ip6_address_t dst_address;
+ /* Options that may follow: target_link_layer_address,
+ redirected_header. */
+}) icmp6_redirect_header_t;
/* Solicitation/advertisement packet format for ethernet. */
typedef CLIB_PACKED (struct
- {
- ip6_header_t ip;
- icmp6_neighbor_solicitation_or_advertisement_header_t
- neighbor;
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
- link_layer_option;
- }) icmp6_neighbor_solicitation_header_t;
-
-/* Router solicitation packet format for ethernet. */
-typedef CLIB_PACKED (struct
- {
- ip6_header_t ip;
- icmp6_neighbor_discovery_header_t neighbor;
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
- link_layer_option;
- }) icmp6_router_solicitation_header_t;
-
-/* router advertisement packet format for ethernet. */
-typedef CLIB_PACKED (struct
- {
- ip6_header_t ip;
- icmp6_router_advertisement_header_t router;
- icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
- link_layer_option;
- icmp6_neighbor_discovery_mtu_option_t mtu_option;
- icmp6_neighbor_discovery_prefix_information_option_t
- prefix[0];
- }) icmp6_router_advertisement_packet_t;
-
-/* multicast listener report packet format for ethernet. */
-typedef CLIB_PACKED (struct
- {
- ip6_header_t ip;
- icmp6_multicast_listener_report_header_t report_hdr;
- }) icmp6_multicast_listener_report_packet_t;
+{
+ ip6_header_t ip;
+ icmp6_neighbor_solicitation_or_advertisement_header_t
+ neighbor;
+ icmp6_neighbor_discovery_ethernet_link_layer_address_option_t
+ link_layer_option;
+}) icmp6_neighbor_solicitation_header_t;
+/* *INDENT-ON* */
#endif /* included_vnet_icmp46_packet_h */