};
/* *INDENT-ON* */
+static uword
+ip4_icmp_echo_request (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ uword n_packets = frame->n_vectors;
+ u32 *from, *to_next;
+ u32 n_left_from, n_left_to_next, next;
+ ip4_main_t *i4m = &ip4_main;
+ u16 *fragment_ids, *fid;
+ u8 host_config_ttl = i4m->host_config.ttl;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = n_packets;
+ next = node->cached_next_index;
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors,
+ /* stride */ 1,
+ sizeof (icmp_input_trace_t));
+
+ /* Get random fragment IDs for replies. */
+ fid = fragment_ids = clib_random_buffer_get_data (&vm->random_buffer,
+ n_packets *
+ sizeof (fragment_ids[0]));
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
+
+ while (n_left_from > 2 && n_left_to_next > 2)
+ {
+ vlib_buffer_t *p0, *p1;
+ ip4_header_t *ip0, *ip1;
+ icmp46_header_t *icmp0, *icmp1;
+ u32 bi0, src0, dst0;
+ u32 bi1, src1, dst1;
+ ip_csum_t sum0, sum1;
+
+ bi0 = to_next[0] = from[0];
+ bi1 = to_next[1] = from[1];
+
+ from += 2;
+ n_left_from -= 2;
+ to_next += 2;
+ n_left_to_next -= 2;
+
+ p0 = vlib_get_buffer (vm, bi0);
+ p1 = vlib_get_buffer (vm, bi1);
+ ip0 = vlib_buffer_get_current (p0);
+ ip1 = vlib_buffer_get_current (p1);
+ icmp0 = ip4_next_header (ip0);
+ icmp1 = ip4_next_header (ip1);
+
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] =
+ vnet_main.local_interface_sw_if_index;
+ vnet_buffer (p1)->sw_if_index[VLIB_RX] =
+ vnet_main.local_interface_sw_if_index;
+
+ /* Update ICMP checksum. */
+ sum0 = icmp0->checksum;
+ sum1 = icmp1->checksum;
+
+ ASSERT (icmp0->type == ICMP4_echo_request);
+ ASSERT (icmp1->type == ICMP4_echo_request);
+ sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply,
+ icmp46_header_t, type);
+ sum1 = ip_csum_update (sum1, ICMP4_echo_request, ICMP4_echo_reply,
+ icmp46_header_t, type);
+ icmp0->type = ICMP4_echo_reply;
+ icmp1->type = ICMP4_echo_reply;
+
+ icmp0->checksum = ip_csum_fold (sum0);
+ icmp1->checksum = ip_csum_fold (sum1);
+
+ src0 = ip0->src_address.data_u32;
+ src1 = ip1->src_address.data_u32;
+ dst0 = ip0->dst_address.data_u32;
+ dst1 = ip1->dst_address.data_u32;
+
+ /* Swap source and destination address.
+ Does not change checksum. */
+ ip0->src_address.data_u32 = dst0;
+ ip1->src_address.data_u32 = dst1;
+ ip0->dst_address.data_u32 = src0;
+ ip1->dst_address.data_u32 = src1;
+
+ /* Update IP checksum. */
+ sum0 = ip0->checksum;
+ sum1 = ip1->checksum;
+
+ sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl,
+ ip4_header_t, ttl);
+ sum1 = ip_csum_update (sum1, ip1->ttl, host_config_ttl,
+ ip4_header_t, ttl);
+ ip0->ttl = host_config_ttl;
+ ip1->ttl = host_config_ttl;
+
+ /* New fragment id. */
+ sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0],
+ ip4_header_t, fragment_id);
+ sum1 = ip_csum_update (sum1, ip1->fragment_id, fid[1],
+ ip4_header_t, fragment_id);
+ ip0->fragment_id = fid[0];
+ ip1->fragment_id = fid[1];
+ fid += 2;
+
+ ip0->checksum = ip_csum_fold (sum0);
+ ip1->checksum = ip_csum_fold (sum1);
+
+ ASSERT (ip0->checksum == ip4_header_checksum (ip0));
+ ASSERT (ip1->checksum == ip4_header_checksum (ip1));
+
+ p0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+ p1->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ vlib_buffer_t *p0;
+ ip4_header_t *ip0;
+ icmp46_header_t *icmp0;
+ u32 bi0, src0, dst0;
+ ip_csum_t sum0;
+
+ bi0 = to_next[0] = from[0];
+
+ from += 1;
+ n_left_from -= 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+
+ p0 = vlib_get_buffer (vm, bi0);
+ ip0 = vlib_buffer_get_current (p0);
+ icmp0 = ip4_next_header (ip0);
+
+ vnet_buffer (p0)->sw_if_index[VLIB_RX] =
+ vnet_main.local_interface_sw_if_index;
+
+ /* Update ICMP checksum. */
+ sum0 = icmp0->checksum;
+
+ ASSERT (icmp0->type == ICMP4_echo_request);
+ sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply,
+ icmp46_header_t, type);
+ icmp0->type = ICMP4_echo_reply;
+ icmp0->checksum = ip_csum_fold (sum0);
+
+ src0 = ip0->src_address.data_u32;
+ dst0 = ip0->dst_address.data_u32;
+ ip0->src_address.data_u32 = dst0;
+ ip0->dst_address.data_u32 = src0;
+
+ /* Update IP checksum. */
+ sum0 = ip0->checksum;
+
+ sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl,
+ ip4_header_t, ttl);
+ ip0->ttl = host_config_ttl;
+
+ sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0],
+ ip4_header_t, fragment_id);
+ ip0->fragment_id = fid[0];
+ fid += 1;
+
+ ip0->checksum = ip_csum_fold (sum0);
+
+ ASSERT (ip0->checksum == ip4_header_checksum (ip0));
+
+ p0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
+ }
+
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ }
+
+ vlib_error_count (vm, ip4_icmp_input_node.index,
+ ICMP4_ERROR_ECHO_REPLIES_SENT, frame->n_vectors);
+
+ return frame->n_vectors;
+}
+
+static u8 *
+format_icmp_input_trace (u8 * s, va_list * va)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*va, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*va, vlib_node_t *);
+ icmp_input_trace_t *t = va_arg (*va, icmp_input_trace_t *);
+
+ s = format (s, "%U",
+ format_ip4_header, t->packet_data, sizeof (t->packet_data));
+
+ return s;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (ip4_icmp_echo_request_node,static) = {
+ .function = ip4_icmp_echo_request,
+ .name = "ip4-icmp-echo-request",
+
+ .vector_size = sizeof (u32),
+
+ .format_trace = format_icmp_input_trace,
+
+ .n_next_nodes = 1,
+ .next_nodes = {
+ [0] = "ip4-load-balance",
+ },
+};
+/* *INDENT-ON* */
/*
* A swarm of address-family agnostic helper functions
ip4_icmp_echo_reply_node.index);
if (tm->n_vlib_mains > 1)
clib_spinlock_init (&pm->ping_run_check_lock);
+
+ ip4_icmp_register_type (vm, ICMP4_echo_request,
+ ip4_icmp_echo_request_node.index);
+
return 0;
}
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_icmp_input_node,static) = {
+VLIB_REGISTER_NODE (ip4_icmp_input_node) = {
.function = ip4_icmp_input,
.name = "ip4-icmp-input",
};
/* *INDENT-ON* */
-static uword
-ip4_icmp_echo_request (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
-{
- uword n_packets = frame->n_vectors;
- u32 *from, *to_next;
- u32 n_left_from, n_left_to_next, next;
- ip4_main_t *i4m = &ip4_main;
- u16 *fragment_ids, *fid;
- u8 host_config_ttl = i4m->host_config.ttl;
-
- from = vlib_frame_vector_args (frame);
- n_left_from = n_packets;
- next = node->cached_next_index;
-
- if (node->flags & VLIB_NODE_FLAG_TRACE)
- vlib_trace_frame_buffers_only (vm, node, from, frame->n_vectors,
- /* stride */ 1,
- sizeof (icmp_input_trace_t));
-
- /* Get random fragment IDs for replies. */
- fid = fragment_ids = clib_random_buffer_get_data (&vm->random_buffer,
- n_packets *
- sizeof (fragment_ids[0]));
-
- while (n_left_from > 0)
- {
- vlib_get_next_frame (vm, node, next, to_next, n_left_to_next);
-
- while (n_left_from > 2 && n_left_to_next > 2)
- {
- vlib_buffer_t *p0, *p1;
- ip4_header_t *ip0, *ip1;
- icmp46_header_t *icmp0, *icmp1;
- u32 bi0, src0, dst0;
- u32 bi1, src1, dst1;
- ip_csum_t sum0, sum1;
-
- bi0 = to_next[0] = from[0];
- bi1 = to_next[1] = from[1];
-
- from += 2;
- n_left_from -= 2;
- to_next += 2;
- n_left_to_next -= 2;
-
- p0 = vlib_get_buffer (vm, bi0);
- p1 = vlib_get_buffer (vm, bi1);
- ip0 = vlib_buffer_get_current (p0);
- ip1 = vlib_buffer_get_current (p1);
- icmp0 = ip4_next_header (ip0);
- icmp1 = ip4_next_header (ip1);
-
- vnet_buffer (p0)->sw_if_index[VLIB_RX] =
- vnet_main.local_interface_sw_if_index;
- vnet_buffer (p1)->sw_if_index[VLIB_RX] =
- vnet_main.local_interface_sw_if_index;
-
- /* Update ICMP checksum. */
- sum0 = icmp0->checksum;
- sum1 = icmp1->checksum;
-
- ASSERT (icmp0->type == ICMP4_echo_request);
- ASSERT (icmp1->type == ICMP4_echo_request);
- sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply,
- icmp46_header_t, type);
- sum1 = ip_csum_update (sum1, ICMP4_echo_request, ICMP4_echo_reply,
- icmp46_header_t, type);
- icmp0->type = ICMP4_echo_reply;
- icmp1->type = ICMP4_echo_reply;
-
- icmp0->checksum = ip_csum_fold (sum0);
- icmp1->checksum = ip_csum_fold (sum1);
-
- src0 = ip0->src_address.data_u32;
- src1 = ip1->src_address.data_u32;
- dst0 = ip0->dst_address.data_u32;
- dst1 = ip1->dst_address.data_u32;
-
- /* Swap source and destination address.
- Does not change checksum. */
- ip0->src_address.data_u32 = dst0;
- ip1->src_address.data_u32 = dst1;
- ip0->dst_address.data_u32 = src0;
- ip1->dst_address.data_u32 = src1;
-
- /* Update IP checksum. */
- sum0 = ip0->checksum;
- sum1 = ip1->checksum;
-
- sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl,
- ip4_header_t, ttl);
- sum1 = ip_csum_update (sum1, ip1->ttl, host_config_ttl,
- ip4_header_t, ttl);
- ip0->ttl = host_config_ttl;
- ip1->ttl = host_config_ttl;
-
- /* New fragment id. */
- sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0],
- ip4_header_t, fragment_id);
- sum1 = ip_csum_update (sum1, ip1->fragment_id, fid[1],
- ip4_header_t, fragment_id);
- ip0->fragment_id = fid[0];
- ip1->fragment_id = fid[1];
- fid += 2;
-
- ip0->checksum = ip_csum_fold (sum0);
- ip1->checksum = ip_csum_fold (sum1);
-
- ASSERT (ip0->checksum == ip4_header_checksum (ip0));
- ASSERT (ip1->checksum == ip4_header_checksum (ip1));
-
- p0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
- p1->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
- }
-
- while (n_left_from > 0 && n_left_to_next > 0)
- {
- vlib_buffer_t *p0;
- ip4_header_t *ip0;
- icmp46_header_t *icmp0;
- u32 bi0, src0, dst0;
- ip_csum_t sum0;
-
- bi0 = to_next[0] = from[0];
-
- from += 1;
- n_left_from -= 1;
- to_next += 1;
- n_left_to_next -= 1;
-
- p0 = vlib_get_buffer (vm, bi0);
- ip0 = vlib_buffer_get_current (p0);
- icmp0 = ip4_next_header (ip0);
-
- vnet_buffer (p0)->sw_if_index[VLIB_RX] =
- vnet_main.local_interface_sw_if_index;
-
- /* Update ICMP checksum. */
- sum0 = icmp0->checksum;
-
- ASSERT (icmp0->type == ICMP4_echo_request);
- sum0 = ip_csum_update (sum0, ICMP4_echo_request, ICMP4_echo_reply,
- icmp46_header_t, type);
- icmp0->type = ICMP4_echo_reply;
- icmp0->checksum = ip_csum_fold (sum0);
-
- src0 = ip0->src_address.data_u32;
- dst0 = ip0->dst_address.data_u32;
- ip0->src_address.data_u32 = dst0;
- ip0->dst_address.data_u32 = src0;
-
- /* Update IP checksum. */
- sum0 = ip0->checksum;
-
- sum0 = ip_csum_update (sum0, ip0->ttl, host_config_ttl,
- ip4_header_t, ttl);
- ip0->ttl = host_config_ttl;
-
- sum0 = ip_csum_update (sum0, ip0->fragment_id, fid[0],
- ip4_header_t, fragment_id);
- ip0->fragment_id = fid[0];
- fid += 1;
-
- ip0->checksum = ip_csum_fold (sum0);
-
- ASSERT (ip0->checksum == ip4_header_checksum (ip0));
-
- p0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
- }
-
- vlib_put_next_frame (vm, node, next, n_left_to_next);
- }
-
- vlib_error_count (vm, ip4_icmp_input_node.index,
- ICMP4_ERROR_ECHO_REPLIES_SENT, frame->n_vectors);
-
- return frame->n_vectors;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (ip4_icmp_echo_request_node,static) = {
- .function = ip4_icmp_echo_request,
- .name = "ip4-icmp-echo-request",
-
- .vector_size = sizeof (u32),
-
- .format_trace = format_icmp_input_trace,
-
- .n_next_nodes = 1,
- .next_nodes = {
- [0] = "ip4-load-balance",
- },
-};
-/* *INDENT-ON* */
-
typedef enum
{
IP4_ICMP_ERROR_NEXT_DROP,
ICMP_INPUT_NEXT_ERROR,
sizeof (cm->ip4_input_next_index_by_type));
- ip4_icmp_register_type (vm, ICMP4_echo_request,
- ip4_icmp_echo_request_node.index);
-
return 0;
}
Code Review / vpp.git / commitdiff