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authorVladislav Grishenko <themiron@yandex-team.ru>2022-06-23 00:45:16 +0500
committerNeale Ranns <neale@graphiant.com>2022-09-30 03:48:42 +0000
commit5c801b362a536fcae704c50bf1573362d372bb3c (patch)
treef8724d4f1d7d68a7fbf3d47523e08a478ee70aea /src/vnet/udp/udp_encap_node.c
parenta30495ce0dd15240c5d03a5f3e17c3428e09dd5c (diff)
udp: add udp encap source port entropy support
Encode entropy value in UDP source port when requested per RFC 7510. CLI already has "src-port-is-entropy", use zero UDP source port in API to avoid breaking changes, since zero port is not something to be used in wild. Also, mark UDP encapsualtion API as mp-safe as already done for CLI. Type: feature Change-Id: Ieb61ee11e058179ed566ff1f251a3391eb169d52 Signed-off-by: Vladislav Grishenko <themiron@yandex-team.ru>
Diffstat (limited to 'src/vnet/udp/udp_encap_node.c')
-rw-r--r--src/vnet/udp/udp_encap_node.c43
1 files changed, 33 insertions, 10 deletions
diff --git a/src/vnet/udp/udp_encap_node.c b/src/vnet/udp/udp_encap_node.c
index 1ebe79532f4..639ac23dfef 100644
--- a/src/vnet/udp/udp_encap_node.c
+++ b/src/vnet/udp/udp_encap_node.c
@@ -20,12 +20,16 @@ typedef struct udp4_encap_trace_t_
{
udp_header_t udp;
ip4_header_t ip;
+ u32 flow_hash;
+ udp_encap_fixup_flags_t flags;
} udp4_encap_trace_t;
typedef struct udp6_encap_trace_t_
{
udp_header_t udp;
ip6_header_t ip;
+ u32 flow_hash;
+ udp_encap_fixup_flags_t flags;
} udp6_encap_trace_t;
extern vlib_combined_counter_main_t udp_encap_counters;
@@ -35,13 +39,16 @@ format_udp4_encap_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ u32 indent = format_get_indent (s);
udp4_encap_trace_t *t;
t = va_arg (*args, udp4_encap_trace_t *);
- s = format (s, "%U\n %U",
- format_ip4_header, &t->ip, sizeof (t->ip),
- format_udp_header, &t->udp, sizeof (t->udp));
+ s = format (s, "flags: %U, flow hash: 0x%08x\n%U%U\n%U%U",
+ format_udp_encap_fixup_flags, t->flags, t->flow_hash,
+ format_white_space, indent, format_ip4_header, &t->ip,
+ sizeof (t->ip), format_white_space, indent, format_udp_header,
+ &t->udp, sizeof (t->udp));
return (s);
}
@@ -50,13 +57,16 @@ format_udp6_encap_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ u32 indent = format_get_indent (s);
udp6_encap_trace_t *t;
t = va_arg (*args, udp6_encap_trace_t *);
- s = format (s, "%U\n %U",
- format_ip6_header, &t->ip, sizeof (t->ip),
- format_udp_header, &t->udp, sizeof (t->udp));
+ s = format (s, "flags: %U, flow hash: 0x%08x\n%U%U\n%U%U",
+ format_udp_encap_fixup_flags, t->flags, t->flow_hash,
+ format_white_space, indent, format_ip6_header, &t->ip,
+ sizeof (t->ip), format_white_space, indent, format_udp_header,
+ &t->udp, sizeof (t->udp));
return (s);
}
@@ -127,13 +137,16 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
sizeof (udp_header_t) + sizeof (ip6_header_t);
ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs,
(u8 *) &ue1->ue_hdrs, n_bytes, encap_family,
- payload_family);
+ payload_family, ue0->ue_flags, ue1->ue_flags);
+
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
udp6_encap_trace_t *tr =
vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->udp = ue0->ue_hdrs.ip6.ue_udp;
tr->ip = ue0->ue_hdrs.ip6.ue_ip6;
+ tr->flags = ue0->ue_flags;
+ tr->flow_hash = vnet_buffer (b0)->ip.flow_hash;
}
if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -141,6 +154,8 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_add_trace (vm, node, b1, sizeof (*tr));
tr->udp = ue1->ue_hdrs.ip6.ue_udp;
tr->ip = ue1->ue_hdrs.ip6.ue_ip6;
+ tr->flags = ue1->ue_flags;
+ tr->flow_hash = vnet_buffer (b1)->ip.flow_hash;
}
}
else
@@ -150,7 +165,7 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
ip_udp_encap_two (vm, b0, b1, (u8 *) &ue0->ue_hdrs,
(u8 *) &ue1->ue_hdrs, n_bytes, encap_family,
- payload_family);
+ payload_family, ue0->ue_flags, ue1->ue_flags);
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -158,6 +173,8 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->udp = ue0->ue_hdrs.ip4.ue_udp;
tr->ip = ue0->ue_hdrs.ip4.ue_ip4;
+ tr->flags = ue0->ue_flags;
+ tr->flow_hash = vnet_buffer (b0)->ip.flow_hash;
}
if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -165,6 +182,8 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_add_trace (vm, node, b1, sizeof (*tr));
tr->udp = ue1->ue_hdrs.ip4.ue_udp;
tr->ip = ue1->ue_hdrs.ip4.ue_ip4;
+ tr->flags = ue1->ue_flags;
+ tr->flow_hash = vnet_buffer (b1)->ip.flow_hash;
}
}
@@ -208,7 +227,7 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
const u8 n_bytes =
sizeof (udp_header_t) + sizeof (ip6_header_t);
ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip6, n_bytes,
- encap_family, payload_family);
+ encap_family, payload_family, ue0->ue_flags);
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -216,6 +235,8 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->udp = ue0->ue_hdrs.ip6.ue_udp;
tr->ip = ue0->ue_hdrs.ip6.ue_ip6;
+ tr->flags = ue0->ue_flags;
+ tr->flow_hash = vnet_buffer (b0)->ip.flow_hash;
}
}
else
@@ -224,7 +245,7 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
sizeof (udp_header_t) + sizeof (ip4_header_t);
ip_udp_encap_one (vm, b0, (u8 *) &ue0->ue_hdrs.ip4, n_bytes,
- encap_family, payload_family);
+ encap_family, payload_family, ue0->ue_flags);
if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
{
@@ -232,6 +253,8 @@ udp_encap_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_add_trace (vm, node, b0, sizeof (*tr));
tr->udp = ue0->ue_hdrs.ip4.ue_udp;
tr->ip = ue0->ue_hdrs.ip4.ue_ip4;
+ tr->flags = ue0->ue_flags;
+ tr->flow_hash = vnet_buffer (b0)->ip.flow_hash;
}
}