diff options
Diffstat (limited to 'src/vnet/ip')
| -rw-r--r-- | src/vnet/ip/punt.c | 63 |
1 files changed, 58 insertions, 5 deletions
diff --git a/src/vnet/ip/punt.c b/src/vnet/ip/punt.c index 651542fa2c8..7b868099039 100644 --- a/src/vnet/ip/punt.c +++ b/src/vnet/ip/punt.c @@ -232,18 +232,28 @@ VLIB_NODE_FUNCTION_MULTIARCH (udp6_punt_node, udp6_punt);; /* *INDENT-ON* */ -static struct sockaddr_un * -punt_socket_get (bool is_ip4, u16 port) +static punt_client_t * +punt_client_get (bool is_ip4, u16 port) { punt_main_t *pm = &punt_main; - punt_client_t *v = is_ip4 ? pm->clients_by_dst_port4 : - pm->clients_by_dst_port6; + punt_client_t *v = + is_ip4 ? pm->clients_by_dst_port4 : pm->clients_by_dst_port6; u16 i = sparse_vec_index (v, port); if (i == SPARSE_VEC_INVALID_INDEX) return 0; - return &vec_elt (v, i).caddr; + return &vec_elt (v, i); +} + +static struct sockaddr_un * +punt_socket_get (bool is_ip4, u16 port) +{ + punt_client_t *v = punt_client_get (is_ip4, port); + if (v) + return &v->caddr; + + return NULL; } static void @@ -270,6 +280,28 @@ punt_socket_unregister (bool is_ip4, u8 protocol, u16 port) return; } +typedef struct +{ + punt_client_t client; + u8 is_midchain; +} udp_punt_trace_t; + +u8 * +format_udp_punt_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 *); + udp_punt_trace_t *t = va_arg (*args, udp_punt_trace_t *); + u32 indent = format_get_indent (s); + s = format (s, "to: %s", t->client.caddr.sun_path); + if (t->is_midchain) + { + s = format (s, "\n%U(buffer is part of chain)", format_white_space, + indent); + } + return s; +} + always_inline uword udp46_punt_socket_inline (vlib_main_t * vm, vlib_node_runtime_t * node, @@ -325,6 +357,18 @@ udp46_punt_socket_inline (vlib_main_t * vm, goto error; } + punt_client_t *c = NULL; + if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED)) + { + if (!c) + { + c = punt_client_get (is_ip4, port); + } + udp_punt_trace_t *t; + t = vlib_add_trace (vm, node, b, sizeof (t[0])); + clib_memcpy (&t->client, c, sizeof (t->client)); + } + /* Re-set iovecs if present. */ if (iovecs) _vec_len (iovecs) = 0; @@ -347,6 +391,13 @@ udp46_punt_socket_inline (vlib_main_t * vm, do { b = vlib_get_buffer (vm, b->next_buffer); + if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED)) + { + udp_punt_trace_t *t; + t = vlib_add_trace (vm, node, b, sizeof (t[0])); + clib_memcpy (&t->client, c, sizeof (t->client)); + t->is_midchain = 1; + } vec_add2 (iovecs, iov, 1); @@ -394,6 +445,7 @@ udp6_punt_socket (vlib_main_t * vm, VLIB_REGISTER_NODE (udp4_punt_socket_node) = { .function = udp4_punt_socket, .name = "ip4-udp-punt-socket", + .format_trace = format_udp_punt_trace, .flags = VLIB_NODE_FLAG_IS_DROP, /* Takes a vector of packets. */ .vector_size = sizeof (u32), @@ -403,6 +455,7 @@ VLIB_REGISTER_NODE (udp4_punt_socket_node) = { VLIB_REGISTER_NODE (udp6_punt_socket_node) = { .function = udp6_punt_socket, .name = "ip6-udp-punt-socket", + .format_trace = format_udp_punt_trace, .flags = VLIB_NODE_FLAG_IS_DROP, .vector_size = sizeof (u32), .n_errors = PUNT_N_ERROR, |