From 51ffa817d910ba058cd76f2b7dd9a4142944f2ee Mon Sep 17 00:00:00 2001 From: Juraj Sloboda Date: Sun, 7 Aug 2016 23:46:45 -0700 Subject: ipfix: add l4 unformat support for mask and match (VPP-204) Change-Id: Iff32c488af9b71acbc4e572c6741afae0a67333c Signed-off-by: Juraj Sloboda --- vpp-api-test/vat/api_format.c | 208 ++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 201 insertions(+), 7 deletions(-) (limited to 'vpp-api-test') diff --git a/vpp-api-test/vat/api_format.c b/vpp-api-test/vat/api_format.c index 78e01c6fcaf..fec31588128 100644 --- a/vpp-api-test/vat/api_format.c +++ b/vpp-api-test/vat/api_format.c @@ -7836,16 +7836,147 @@ api_sr_multicast_map_add_del (vat_main_t * vam) } +#define foreach_tcp_proto_field \ +_(src_port) \ +_(dst_port) + +#define foreach_udp_proto_field \ +_(src_port) \ +_(dst_port) + #define foreach_ip4_proto_field \ _(src_address) \ _(dst_address) \ _(tos) \ -_(length) \ +_(length) \ _(fragment_id) \ _(ttl) \ _(protocol) \ _(checksum) +uword +unformat_tcp_mask (unformat_input_t * input, va_list * args) +{ + u8 **maskp = va_arg (*args, u8 **); + u8 *mask = 0; + u8 found_something = 0; + tcp_header_t *tcp; + +#define _(a) u8 a=0; + foreach_tcp_proto_field; +#undef _ + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (0); +#define _(a) else if (unformat (input, #a)) a=1; + foreach_tcp_proto_field +#undef _ + else + break; + } + +#define _(a) found_something += a; + foreach_tcp_proto_field; +#undef _ + + if (found_something == 0) + return 0; + + vec_validate (mask, sizeof (*tcp) - 1); + + tcp = (tcp_header_t *) mask; + +#define _(a) if (a) memset (&tcp->a, 0xff, sizeof (tcp->a)); + foreach_tcp_proto_field; +#undef _ + + *maskp = mask; + return 1; +} + +uword +unformat_udp_mask (unformat_input_t * input, va_list * args) +{ + u8 **maskp = va_arg (*args, u8 **); + u8 *mask = 0; + u8 found_something = 0; + udp_header_t *udp; + +#define _(a) u8 a=0; + foreach_udp_proto_field; +#undef _ + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (0); +#define _(a) else if (unformat (input, #a)) a=1; + foreach_udp_proto_field +#undef _ + else + break; + } + +#define _(a) found_something += a; + foreach_udp_proto_field; +#undef _ + + if (found_something == 0) + return 0; + + vec_validate (mask, sizeof (*udp) - 1); + + udp = (udp_header_t *) mask; + +#define _(a) if (a) memset (&udp->a, 0xff, sizeof (udp->a)); + foreach_udp_proto_field; +#undef _ + + *maskp = mask; + return 1; +} + +typedef struct +{ + u16 src_port, dst_port; +} tcpudp_header_t; + +uword +unformat_l4_mask (unformat_input_t * input, va_list * args) +{ + u8 **maskp = va_arg (*args, u8 **); + u16 src_port = 0, dst_port = 0; + tcpudp_header_t *tcpudp; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "tcp %U", unformat_tcp_mask, maskp)) + return 1; + else if (unformat (input, "udp %U", unformat_udp_mask, maskp)) + return 1; + else if (unformat (input, "src_port")) + src_port = 0xFFFF; + else if (unformat (input, "dst_port")) + dst_port = 0xFFFF; + else + return 0; + } + + if (!src_port && !dst_port) + return 0; + + u8 *mask = 0; + vec_validate (mask, sizeof (tcpudp_header_t) - 1); + + tcpudp = (tcpudp_header_t *) mask; + tcpudp->src_port = src_port; + tcpudp->dst_port = dst_port; + + *maskp = mask; + + return 1; +} + uword unformat_ip4_mask (unformat_input_t * input, va_list * args) { @@ -8123,6 +8254,7 @@ unformat_classify_mask (unformat_input_t * input, va_list * args) u8 *mask = 0; u8 *l2 = 0; u8 *l3 = 0; + u8 *l4 = 0; int i; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) @@ -8133,13 +8265,23 @@ unformat_classify_mask (unformat_input_t * input, va_list * args) ; else if (unformat (input, "l3 %U", unformat_l3_mask, &l3)) ; + else if (unformat (input, "l4 %U", unformat_l4_mask, &l4)) + ; else break; } - if (mask || l2 || l3) + if (l4 && !l3) { - if (l2 || l3) + vec_free (mask); + vec_free (l2); + vec_free (l4); + return 0; + } + + if (mask || l2 || l3 || l4) + { + if (l2 || l3 || l4) { /* "With a free Ethernet header in every package" */ if (l2 == 0) @@ -8150,6 +8292,11 @@ unformat_classify_mask (unformat_input_t * input, va_list * args) vec_append (mask, l3); vec_free (l3); } + if (vec_len (l4)) + { + vec_append (mask, l4); + vec_free (l4); + } } /* Scan forward looking for the first significant mask octet */ @@ -8389,6 +8536,37 @@ api_classify_add_del_table (vat_main_t * vam) /* NOTREACHED */ } +uword +unformat_l4_match (unformat_input_t * input, va_list * args) +{ + u8 **matchp = va_arg (*args, u8 **); + + u8 *proto_header = 0; + int src_port = 0; + int dst_port = 0; + + tcpudp_header_t h; + + while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + { + if (unformat (input, "src_port %d", &src_port)) + ; + else if (unformat (input, "dst_port %d", &dst_port)) + ; + else + return 0; + } + + h.src_port = clib_host_to_net_u16 (src_port); + h.dst_port = clib_host_to_net_u16 (dst_port); + vec_validate (proto_header, sizeof (h) - 1); + memcpy (proto_header, &h, sizeof (h)); + + *matchp = proto_header; + + return 1; +} + uword unformat_ip4_match (unformat_input_t * input, va_list * args) { @@ -8473,13 +8651,13 @@ unformat_ip4_match (unformat_input_t * input, va_list * args) ip->tos = tos_val; if (length) - ip->length = length_val; + ip->length = clib_host_to_net_u16 (length_val); if (ttl) ip->ttl = ttl_val; if (checksum) - ip->checksum = checksum_val; + ip->checksum = clib_host_to_net_u16 (checksum_val); *matchp = match; return 1; @@ -8734,6 +8912,7 @@ unformat_classify_match (unformat_input_t * input, va_list * args) u8 *match = 0; u8 *l2 = 0; u8 *l3 = 0; + u8 *l4 = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { @@ -8743,13 +8922,23 @@ unformat_classify_match (unformat_input_t * input, va_list * args) ; else if (unformat (input, "l3 %U", unformat_l3_match, &l3)) ; + else if (unformat (input, "l4 %U", unformat_l4_match, &l4)) + ; else break; } - if (match || l2 || l3) + if (l4 && !l3) { - if (l2 || l3) + vec_free (match); + vec_free (l2); + vec_free (l4); + return 0; + } + + if (match || l2 || l3 || l4) + { + if (l2 || l3 || l4) { /* "Win a free Ethernet header in every packet" */ if (l2 == 0) @@ -8760,6 +8949,11 @@ unformat_classify_match (unformat_input_t * input, va_list * args) vec_append_aligned (match, l3, sizeof (u32x4)); vec_free (l3); } + if (vec_len (l4)) + { + vec_append_aligned (match, l4, sizeof (u32x4)); + vec_free (l4); + } } /* Make sure the vector is big enough even if key is all 0's */ -- cgit 1.2.3-korg