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authorNeale Ranns <nranns@cisco.com>2018-01-29 10:43:33 -0800
committerFlorin Coras <florin.coras@gmail.com>2018-01-30 08:54:29 +0000
commitdb14f5aff69311d13a0a90baa3567e92f3faa783 (patch)
tree2ee6edb0d8b82b840fdc90b62f782ea0b95bc8f0 /src/vnet/adj
parentbb16d3ffecd357907d01f2785ac78edf0292cfd3 (diff)
Allow the provider of a midchain adjacency to pass context data that is returned in the fixup function
Change-Id: I458e6e03b03e27775df33a2fd302743126d6ac44 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/adj')
-rw-r--r--src/vnet/adj/adj.h7
-rw-r--r--src/vnet/adj/adj_internal.h1
-rw-r--r--src/vnet/adj/adj_l2.c4
-rw-r--r--src/vnet/adj/adj_mcast.c6
-rw-r--r--src/vnet/adj/adj_mcast.h11
-rw-r--r--src/vnet/adj/adj_midchain.c5
-rw-r--r--src/vnet/adj/adj_midchain.h13
-rw-r--r--src/vnet/adj/adj_nsh.c4
8 files changed, 41 insertions, 10 deletions
diff --git a/src/vnet/adj/adj.h b/src/vnet/adj/adj.h
index ed5eb1f1e88..fe77d1634e0 100644
--- a/src/vnet/adj/adj.h
+++ b/src/vnet/adj/adj.h
@@ -141,7 +141,8 @@ struct ip_adjacency_t_;
*/
typedef void (*adj_midchain_fixup_t) (vlib_main_t * vm,
struct ip_adjacency_t_ * adj,
- vlib_buffer_t * b0);
+ vlib_buffer_t * b0,
+ const void *data);
/**
* @brief Flags on an IP adjacency
@@ -242,6 +243,10 @@ typedef struct ip_adjacency_t_
* A function to perform the post-rewrite fixup
*/
adj_midchain_fixup_t fixup_func;
+ /**
+ * Fixup data passed back to the client in the fixup function
+ */
+ const void *fixup_data;
} midchain;
/**
* IP_LOOKUP_NEXT_GLEAN
diff --git a/src/vnet/adj/adj_internal.h b/src/vnet/adj/adj_internal.h
index ca41cb21d9e..e6d276e4d02 100644
--- a/src/vnet/adj/adj_internal.h
+++ b/src/vnet/adj/adj_internal.h
@@ -95,6 +95,7 @@ extern void adj_nbr_update_rewrite_internal(ip_adjacency_t *adj,
u8 *rewrite);
extern void adj_midchain_setup(adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *data,
adj_flags_t flags);
extern ip_adjacency_t * adj_alloc(fib_protocol_t proto);
diff --git a/src/vnet/adj/adj_l2.c b/src/vnet/adj/adj_l2.c
index 20d70dd4cd1..132ceb28168 100644
--- a/src/vnet/adj/adj_l2.c
+++ b/src/vnet/adj/adj_l2.c
@@ -110,7 +110,9 @@ adj_l2_rewrite_inline (vlib_main_t * vm,
if (is_midchain)
{
- adj0->sub_type.midchain.fixup_func(vm, adj0, p0);
+ adj0->sub_type.midchain.fixup_func(
+ vm, adj0, p0,
+ adj0->sub_type.midchain.fixup_data);
}
vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0;
diff --git a/src/vnet/adj/adj_mcast.c b/src/vnet/adj/adj_mcast.c
index 00a12ad330b..efc781de989 100644
--- a/src/vnet/adj/adj_mcast.c
+++ b/src/vnet/adj/adj_mcast.c
@@ -139,6 +139,7 @@ adj_mcast_update_rewrite (adj_index_t adj_index,
void
adj_mcast_midchain_update_rewrite (adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *fixup_data,
adj_flags_t flags,
u8 *rewrite,
u8 offset,
@@ -160,7 +161,7 @@ adj_mcast_midchain_update_rewrite (adj_index_t adj_index,
*/
ASSERT(NULL != rewrite);
- adj_midchain_setup(adj_index, fixup, flags);
+ adj_midchain_setup(adj_index, fixup, fixup_data, flags);
/*
* update the adj's rewrite string and build the arc
@@ -354,14 +355,13 @@ format_adj_mcast_midchain (u8* s, va_list *ap)
{
index_t index = va_arg(*ap, index_t);
CLIB_UNUSED(u32 indent) = va_arg(*ap, u32);
- vnet_main_t * vnm = vnet_get_main();
ip_adjacency_t * adj = adj_get(index);
s = format(s, "%U-mcast-midchain: ",
format_fib_protocol, adj->ia_nh_proto);
s = format (s, "%U",
format_vnet_rewrite,
- vnm->vlib_main, &adj->rewrite_header,
+ &adj->rewrite_header,
sizeof (adj->rewrite_data), 0);
s = format (s, "\n%Ustacked-on:\n%U%U",
format_white_space, indent,
diff --git a/src/vnet/adj/adj_mcast.h b/src/vnet/adj/adj_mcast.h
index bfb0d6f6d11..55e2ec03d09 100644
--- a/src/vnet/adj/adj_mcast.h
+++ b/src/vnet/adj/adj_mcast.h
@@ -77,11 +77,22 @@ extern void adj_mcast_update_rewrite(adj_index_t adj_index,
* @param
* The index of the adj to update
*
+ * @param fixup
+ * The function that will be invoked at paket switch time to 'fixup'
+ * the rewrite applied with necessary per-packet info (i.e. length, checksums).
+ * @param fixup_data
+ * Context data set by the caller that is provided as an argument in the
+ * fixup function.
+ *
+ * @param flags
+ * Flags controlling the adjacency behaviour
+ *
* @param
* The new rewrite
*/
extern void adj_mcast_midchain_update_rewrite(adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *fixup_data,
adj_flags_t flags,
u8 *rewrite,
u8 offset,
diff --git a/src/vnet/adj/adj_midchain.c b/src/vnet/adj/adj_midchain.c
index 370fa4652f8..9fd3246b15a 100644
--- a/src/vnet/adj/adj_midchain.c
+++ b/src/vnet/adj/adj_midchain.c
@@ -460,6 +460,7 @@ adj_nbr_midchain_get_feature_node (ip_adjacency_t *adj)
void
adj_midchain_setup (adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *data,
adj_flags_t flags)
{
u32 feature_index, tx_node;
@@ -471,6 +472,7 @@ adj_midchain_setup (adj_index_t adj_index,
adj = adj_get(adj_index);
adj->sub_type.midchain.fixup_func = fixup;
+ adj->sub_type.midchain.fixup_data = data;
adj->ia_flags |= flags;
arc_index = adj_midchain_get_feature_arc_index_for_link_type (adj);
@@ -503,6 +505,7 @@ adj_midchain_setup (adj_index_t adj_index,
void
adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *fixup_data,
adj_flags_t flags,
u8 *rewrite)
{
@@ -522,7 +525,7 @@ adj_nbr_midchain_update_rewrite (adj_index_t adj_index,
*/
ASSERT(NULL != rewrite);
- adj_midchain_setup(adj_index, fixup, flags);
+ adj_midchain_setup(adj_index, fixup, fixup_data, flags);
/*
* update the rewirte with the workers paused.
diff --git a/src/vnet/adj/adj_midchain.h b/src/vnet/adj/adj_midchain.h
index 27ca1d3398d..65892314f40 100644
--- a/src/vnet/adj/adj_midchain.h
+++ b/src/vnet/adj/adj_midchain.h
@@ -31,15 +31,22 @@
* @param adj_index
* The index of the neighbour adjacency.
*
- * @param post_rewrite_node
- * The VLIB graph node that provides the post-encap fixup.
- * where 'fixup' is e.g., correcting chksum, length, etc.
+ * @param fixup
+ * The function that will be invoked at paket switch time to 'fixup'
+ * the rewrite applied with necessary per-packet info (i.e. length, checksums).
+ * @param fixup_data
+ * Context data set by the caller that is provided as an argument in the
+ * fixup function.
+ *
+ * @param flags
+ * Flags controlling the adjacency behaviour
*
* @param rewrite
* The rewrite.
*/
extern void adj_nbr_midchain_update_rewrite(adj_index_t adj_index,
adj_midchain_fixup_t fixup,
+ const void *fixup_data,
adj_flags_t flags,
u8 *rewrite);
diff --git a/src/vnet/adj/adj_nsh.c b/src/vnet/adj/adj_nsh.c
index 128570b02a9..76503f59309 100644
--- a/src/vnet/adj/adj_nsh.c
+++ b/src/vnet/adj/adj_nsh.c
@@ -111,7 +111,9 @@ adj_nsh_rewrite_inline (vlib_main_t * vm,
if (is_midchain)
{
- adj0->sub_type.midchain.fixup_func(vm, adj0, p0);
+ adj0->sub_type.midchain.fixup_func(
+ vm, adj0, p0,
+ adj0->sub_type.midchain.fixup_data);
}
vnet_buffer (p0)->sw_if_index[VLIB_TX] = tx_sw_if_index0;