diff options
Diffstat (limited to 'src/vnet/ip/ip4.h')
| -rw-r--r-- | src/vnet/ip/ip4.h | 118 |
1 files changed, 3 insertions, 115 deletions
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h index cb78bfbe356..22de22f227a 100644 --- a/src/vnet/ip/ip4.h +++ b/src/vnet/ip/ip4.h @@ -41,12 +41,13 @@ #define included_ip_ip4_h #include <vnet/ip/ip4_packet.h> +#include <vnet/ip/ip_flow_hash.h> + #include <vnet/ip/lookup.h> #include <vnet/ip/ip_interface.h> #include <vnet/buffer.h> #include <vnet/feature/feature.h> #include <vnet/ip/icmp46_packet.h> -#include <vnet/util/throttle.h> typedef struct ip4_mfib_t { @@ -163,10 +164,6 @@ typedef struct ip4_main_t u8 pad[2]; } host_config; - - /** ARP throttling */ - throttle_t arp_throttle; - } ip4_main_t; #define ARP_THROTTLE_BITS (512) @@ -295,56 +292,6 @@ void ip4_punt_redirect_add_paths (u32 rx_sw_if_index, void ip4_punt_redirect_del (u32 rx_sw_if_index); -/* Compute flow hash. We'll use it to select which adjacency to use for this - flow. And other things. */ -always_inline u32 -ip4_compute_flow_hash (const ip4_header_t * ip, - flow_hash_config_t flow_hash_config) -{ - tcp_header_t *tcp = (void *) (ip + 1); - u32 a, b, c, t1, t2; - uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP - || ip->protocol == IP_PROTOCOL_UDP); - - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR) - ? ip->src_address.data_u32 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_ADDR) - ? ip->dst_address.data_u32 : 0; - - a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1; - b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2; - - t1 = is_tcp_udp ? tcp->src : 0; - t2 = is_tcp_udp ? tcp->dst : 0; - - t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0; - t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0; - - if (flow_hash_config & IP_FLOW_HASH_SYMMETRIC) - { - if (b < a) - { - c = a; - a = b; - b = c; - } - if (t2 < t1) - { - t2 += t1; - t1 = t2 - t1; - t2 = t2 - t1; - } - } - - b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0; - c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? - (t1 << 16) | t2 : (t2 << 16) | t1; - - hash_v3_mix32 (a, b, c); - hash_v3_finalize32 (a, b, c); - - return c; -} void ip4_forward_next_trace (vlib_main_t * vm, @@ -356,66 +303,6 @@ u8 *format_ip4_forward_next_trace (u8 * s, va_list * args); u32 ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0); -#define IP_DF 0x4000 /* don't fragment */ - -always_inline void * -vlib_buffer_push_ip4_custom (vlib_main_t * vm, vlib_buffer_t * b, - ip4_address_t * src, ip4_address_t * dst, - int proto, u8 csum_offload, u8 is_df) -{ - ip4_header_t *ih; - - /* make some room */ - ih = vlib_buffer_push_uninit (b, sizeof (ip4_header_t)); - - ih->ip_version_and_header_length = 0x45; - ih->tos = 0; - ih->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b)); - - /* No fragments */ - ih->flags_and_fragment_offset = is_df ? clib_host_to_net_u16 (IP_DF) : 0; - ih->ttl = 255; - ih->protocol = proto; - ih->src_address.as_u32 = src->as_u32; - ih->dst_address.as_u32 = dst->as_u32; - - vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data; - b->flags |= VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID; - - /* Offload ip4 header checksum generation */ - if (csum_offload) - { - ih->checksum = 0; - b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM; - } - else - ih->checksum = ip4_header_checksum (ih); - - return ih; -} - -/** - * Push IPv4 header to buffer - * - * This does not support fragmentation. - * - * @param vm - vlib_main - * @param b - buffer to write the header to - * @param src - source IP - * @param dst - destination IP - * @param prot - payload proto - * - * @return - pointer to start of IP header - */ -always_inline void * -vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b, - ip4_address_t * src, ip4_address_t * dst, int proto, - u8 csum_offload) -{ - return vlib_buffer_push_ip4_custom (vm, b, src, dst, proto, csum_offload, - 1 /* is_df */ ); -} - always_inline u32 vlib_buffer_get_ip4_fib_index (vlib_buffer_t * b) { @@ -425,6 +312,7 @@ vlib_buffer_get_ip4_fib_index (vlib_buffer_t * b) return (fib_index == (u32) ~ 0) ? vec_elt (ip4_main.fib_index_by_sw_if_index, sw_if_index) : fib_index; } + #endif /* included_ip_ip4_h */ /* |