diff options
Diffstat (limited to 'vnet/vnet/ip/udp.h')
| -rw-r--r-- | vnet/vnet/ip/udp.h | 161 |
1 files changed, 89 insertions, 72 deletions
diff --git a/vnet/vnet/ip/udp.h b/vnet/vnet/ip/udp.h index f8ff777e275..03c62e0b684 100644 --- a/vnet/vnet/ip/udp.h +++ b/vnet/vnet/ip/udp.h @@ -26,7 +26,8 @@ #include <vnet/pg/pg.h> #include <vnet/ip/format.h> -typedef enum { +typedef enum +{ #define udp_error(n,s) UDP_ERROR_##n, #include <vnet/ip/udp_error.def> #undef udp_error @@ -56,22 +57,24 @@ _ (4342, lisp_cp6) \ _ (4790, vxlan6_gpe) \ _ (6633, vpath6_3) -typedef enum { +typedef enum +{ #define _(n,f) UDP_DST_PORT_##f = n, - foreach_udp4_dst_port - foreach_udp6_dst_port + foreach_udp4_dst_port foreach_udp6_dst_port #undef _ } udp_dst_port_t; -typedef enum { +typedef enum +{ #define _(n,f) UDP6_DST_PORT_##f = n, foreach_udp6_dst_port #undef _ } udp6_dst_port_t; -typedef struct { +typedef struct +{ /* Name (a c string). */ - char * name; + char *name; /* GRE protocol type in host byte order. */ udp_dst_port_t dst_port; @@ -83,27 +86,29 @@ typedef struct { u32 next_index; } udp_dst_port_info_t; -typedef enum { +typedef enum +{ UDP_IP6 = 0, - UDP_IP4, /* the code is full of is_ip4... */ + UDP_IP4, /* the code is full of is_ip4... */ N_UDP_AF, } udp_af_t; -typedef struct { - udp_dst_port_info_t * dst_port_infos [N_UDP_AF]; +typedef struct +{ + udp_dst_port_info_t *dst_port_infos[N_UDP_AF]; /* Hash tables mapping name/protocol to protocol info index. */ - uword * dst_port_info_by_name[N_UDP_AF]; - uword * dst_port_info_by_dst_port[N_UDP_AF]; + uword *dst_port_info_by_name[N_UDP_AF]; + uword *dst_port_info_by_dst_port[N_UDP_AF]; /* convenience */ - vlib_main_t * vlib_main; + vlib_main_t *vlib_main; } udp_main_t; always_inline udp_dst_port_info_t * udp_get_dst_port_info (udp_main_t * um, udp_dst_port_t dst_port, u8 is_ip4) { - uword * p = hash_get (um->dst_port_info_by_dst_port[is_ip4], dst_port); + uword *p = hash_get (um->dst_port_info_by_dst_port[is_ip4], dst_port); return p ? vec_elt_at_index (um->dst_port_infos[is_ip4], p[0]) : 0; } @@ -113,108 +118,108 @@ format_function_t format_udp_rx_trace; unformat_function_t unformat_udp_header; void udp_register_dst_port (vlib_main_t * vm, - udp_dst_port_t dst_port, - u32 node_index, u8 is_ip4); + udp_dst_port_t dst_port, + u32 node_index, u8 is_ip4); -void udp_punt_unknown(vlib_main_t * vm, u8 is_ip4, u8 is_add); +void udp_punt_unknown (vlib_main_t * vm, u8 is_ip4, u8 is_add); always_inline void -ip_udp_fixup_one (vlib_main_t * vm, - vlib_buffer_t * b0, - u8 is_ip4) +ip_udp_fixup_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 is_ip4) { u16 new_l0; - udp_header_t * udp0; + udp_header_t *udp0; if (is_ip4) { - ip4_header_t * ip0; + ip4_header_t *ip0; ip_csum_t sum0; u16 old_l0 = 0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* fix the <bleep>ing outer-IP checksum */ sum0 = ip0->checksum; /* old_l0 always 0, see the rewrite setup */ new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); - sum0 = ip_csum_update(sum0, old_l0, new_l0, ip4_header_t, - length /* changed member */); + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); ip0->checksum = ip_csum_fold (sum0); ip0->length = new_l0; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); + udp0 = (udp_header_t *) (ip0 + 1); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); udp0->length = new_l0; } else { - ip6_header_t * ip0; + ip6_header_t *ip0; int bogus0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); ip0->payload_length = new_l0; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); + udp0 = (udp_header_t *) (ip0 + 1); udp0->length = new_l0; - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); - ASSERT(bogus0 == 0); + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + ASSERT (bogus0 == 0); if (udp0->checksum == 0) - udp0->checksum = 0xffff; + udp0->checksum = 0xffff; } } + always_inline void ip_udp_encap_one (vlib_main_t * vm, vlib_buffer_t * b0, u8 * ec0, word ec_len, - u8 is_ip4) + u8 is_ip4) { - vlib_buffer_advance (b0, - ec_len); + vlib_buffer_advance (b0, -ec_len); if (is_ip4) { - ip4_header_t * ip0; + ip4_header_t *ip0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - ip_udp_fixup_one(vm, b0, 1); + clib_memcpy (ip0, ec0, ec_len); + ip_udp_fixup_one (vm, b0, 1); } else { - ip6_header_t * ip0; + ip6_header_t *ip0; - ip0 = vlib_buffer_get_current(b0); + ip0 = vlib_buffer_get_current (b0); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - ip_udp_fixup_one(vm, b0, 0); + clib_memcpy (ip0, ec0, ec_len); + ip_udp_fixup_one (vm, b0, 0); } } always_inline void ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, - u8 * ec0, u8 * ec1, word ec_len, u8 is_v4) + u8 * ec0, u8 * ec1, word ec_len, u8 is_v4) { u16 new_l0, new_l1; - udp_header_t * udp0, *udp1; + udp_header_t *udp0, *udp1; - ASSERT(_vec_len(ec0) == _vec_len(ec1)); + ASSERT (_vec_len (ec0) == _vec_len (ec1)); vlib_buffer_advance (b0, -ec_len); vlib_buffer_advance (b1, -ec_len); if (is_v4) { - ip4_header_t * ip0, *ip1; + ip4_header_t *ip0, *ip1; ip_csum_t sum0, sum1; u16 old_l0 = 0, old_l1 = 0; @@ -233,10 +238,10 @@ ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)); new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1)); - sum0 = ip_csum_update(sum0, old_l0, new_l0, ip4_header_t, - length /* changed member */); - sum1 = ip_csum_update(sum1, old_l1, new_l1, ip4_header_t, - length /* changed member */); + sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t, + length /* changed member */ ); + sum1 = ip_csum_update (sum1, old_l1, new_l1, ip4_header_t, + length /* changed member */ ); ip0->checksum = ip_csum_fold (sum0); ip1->checksum = ip_csum_fold (sum1); @@ -248,49 +253,61 @@ ip_udp_encap_two (vlib_main_t * vm, vlib_buffer_t * b0, vlib_buffer_t * b1, udp0 = (udp_header_t *) (ip0 + 1); udp1 = (udp_header_t *) (ip1 + 1); - new_l0 = clib_host_to_net_u16 ( - vlib_buffer_length_in_chain (vm, b0) - sizeof(*ip0)); - new_l1 = clib_host_to_net_u16 ( - vlib_buffer_length_in_chain (vm, b1) - sizeof(*ip1)); + new_l0 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - + sizeof (*ip0)); + new_l1 = + clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) - + sizeof (*ip1)); udp0->length = new_l0; udp1->length = new_l1; } else { - ip6_header_t * ip0, * ip1; + ip6_header_t *ip0, *ip1; int bogus0, bogus1; - ip0 = vlib_buffer_get_current(b0); - ip1 = vlib_buffer_get_current(b1); + ip0 = vlib_buffer_get_current (b0); + ip1 = vlib_buffer_get_current (b1); /* Apply the encap string. */ - clib_memcpy(ip0, ec0, ec_len); - clib_memcpy(ip1, ec1, ec_len); + clib_memcpy (ip0, ec0, ec_len); + clib_memcpy (ip1, ec1, ec_len); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) - - sizeof (*ip0)); + - sizeof (*ip0)); new_l1 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) - - sizeof (*ip1)); + - sizeof (*ip1)); ip0->payload_length = new_l0; ip1->payload_length = new_l1; /* Fix UDP length */ - udp0 = (udp_header_t *)(ip0+1); - udp1 = (udp_header_t *)(ip1+1); + udp0 = (udp_header_t *) (ip0 + 1); + udp1 = (udp_header_t *) (ip1 + 1); udp0->length = new_l0; udp1->length = new_l1; - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); - udp1->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1); - ASSERT(bogus0 == 0); - ASSERT(bogus1 == 0); + udp0->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, &bogus0); + udp1->checksum = + ip6_tcp_udp_icmp_compute_checksum (vm, b1, ip1, &bogus1); + ASSERT (bogus0 == 0); + ASSERT (bogus1 == 0); if (udp0->checksum == 0) - udp0->checksum = 0xffff; + udp0->checksum = 0xffff; if (udp1->checksum == 0) - udp1->checksum = 0xffff; + udp1->checksum = 0xffff; } } #endif /* included_udp_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |