b->current_length = 0;
b->total_length_not_including_first_buffer = 0;
vnet_buffer (b)->sctp.flags = 0;
- vnet_buffer (b)->sctp.conn_idx = MAX_SCTP_CONNECTIONS;
+ vnet_buffer (b)->sctp.subconn_idx = MAX_SCTP_CONNECTIONS;
/* Leave enough space for headers */
return vlib_buffer_make_headroom (b, MAX_HDRS_LEN);
b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
b->total_length_not_including_first_buffer = 0;
vnet_buffer (b)->sctp.flags = 0;
- vnet_buffer (b)->sctp.conn_idx = MAX_SCTP_CONNECTIONS;
+ vnet_buffer (b)->sctp.subconn_idx = MAX_SCTP_CONNECTIONS;
VLIB_BUFFER_TRACE_TRAJECTORY_INIT (b);
/* Leave enough space for headers */
return vlib_buffer_make_headroom (b, MAX_HDRS_LEN);
sctp_conn->local_tag = init_chunk->initiate_tag;
vnet_buffer (b)->sctp.connection_index = sub_conn->c_c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
SCTP_DBG_STATE_MACHINE ("CONN_INDEX = %u, CURR_CONN_STATE = %u (%s), "
"CHUNK_TYPE = %s, "
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
void
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
+}
+
+/**
+ * Convert buffer to ABORT
+ */
+/*
+void
+sctp_prepare_operation_error (sctp_connection_t * sctp_conn, u8 idx,
+ vlib_buffer_t * b, ip4_address_t * ip4_addr,
+ ip6_address_t * ip6_addr)
+{
+ vlib_main_t *vm = vlib_get_main ();
+
+ sctp_reuse_buffer (vm, b);
+
+ // The minimum size of the message is given by the sctp_operation_error_t
+ u16 alloc_bytes = sizeof (sctp_operation_error_t);
+
+ // As per RFC 4960 the chunk_length value does NOT contemplate
+ // the size of the first header (see sctp_header_t) and any padding
+ //
+ u16 chunk_len = alloc_bytes - sizeof (sctp_header_t);
+
+ alloc_bytes += vnet_sctp_calculate_padding (alloc_bytes);
+
+ sctp_operation_error_t *err_chunk =
+ vlib_buffer_push_uninit (b, alloc_bytes);
+
+ // src_port & dst_port are already in network byte-order
+ err_chunk->sctp_hdr.checksum = 0;
+ err_chunk->sctp_hdr.src_port = sctp_conn->sub_conn[idx].connection.lcl_port;
+ err_chunk->sctp_hdr.dst_port = sctp_conn->sub_conn[idx].connection.rmt_port;
+ // As per RFC4960 Section 5.2.2: copy the INITIATE_TAG into the VERIFICATION_TAG of the ABORT chunk
+ err_chunk->sctp_hdr.verification_tag = sctp_conn->local_tag;
+
+ vnet_sctp_set_chunk_type (&err_chunk->chunk_hdr, OPERATION_ERROR);
+ vnet_sctp_set_chunk_length (&err_chunk->chunk_hdr, chunk_len);
+
+ vnet_buffer (b)->sctp.connection_index =
+ sctp_conn->sub_conn[idx].connection.c_index;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
+}
+*/
+
+/**
+ * Convert buffer to ABORT
+ */
+void
+sctp_prepare_abort_for_collision (sctp_connection_t * sctp_conn, u8 idx,
+ vlib_buffer_t * b, ip4_address_t * ip4_addr,
+ ip6_address_t * ip6_addr)
+{
+ vlib_main_t *vm = vlib_get_main ();
+
+ sctp_reuse_buffer (vm, b);
+
+ /* The minimum size of the message is given by the sctp_abort_chunk_t */
+ u16 alloc_bytes = sizeof (sctp_abort_chunk_t);
+
+ /* As per RFC 4960 the chunk_length value does NOT contemplate
+ * the size of the first header (see sctp_header_t) and any padding
+ */
+ u16 chunk_len = alloc_bytes - sizeof (sctp_header_t);
+
+ alloc_bytes += vnet_sctp_calculate_padding (alloc_bytes);
+
+ sctp_abort_chunk_t *abort_chunk = vlib_buffer_push_uninit (b, alloc_bytes);
+
+ /* src_port & dst_port are already in network byte-order */
+ abort_chunk->sctp_hdr.checksum = 0;
+ abort_chunk->sctp_hdr.src_port =
+ sctp_conn->sub_conn[idx].connection.lcl_port;
+ abort_chunk->sctp_hdr.dst_port =
+ sctp_conn->sub_conn[idx].connection.rmt_port;
+ /* As per RFC4960 Section 5.2.2: copy the INITIATE_TAG into the VERIFICATION_TAG of the ABORT chunk */
+ abort_chunk->sctp_hdr.verification_tag = sctp_conn->local_tag;
+
+ vnet_sctp_set_chunk_type (&abort_chunk->chunk_hdr, ABORT);
+ vnet_sctp_set_chunk_length (&abort_chunk->chunk_hdr, chunk_len);
+
+ vnet_buffer (b)->sctp.connection_index =
+ sctp_conn->sub_conn[idx].connection.c_index;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
+}
+
+/**
+ * Convert buffer to INIT-ACK
+ */
+void
+sctp_prepare_initack_chunk_for_collision (sctp_connection_t * sctp_conn,
+ u8 idx, vlib_buffer_t * b,
+ ip4_address_t * ip4_addr,
+ ip6_address_t * ip6_addr)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ sctp_ipv4_addr_param_t *ip4_param = 0;
+ sctp_ipv6_addr_param_t *ip6_param = 0;
+
+ sctp_reuse_buffer (vm, b);
+
+ /* The minimum size of the message is given by the sctp_init_ack_chunk_t */
+ u16 alloc_bytes =
+ sizeof (sctp_init_ack_chunk_t) + sizeof (sctp_state_cookie_param_t);
+
+ if (PREDICT_TRUE (ip4_addr != NULL))
+ {
+ /* Create room for variable-length fields in the INIT_ACK chunk */
+ alloc_bytes += SCTP_IPV4_ADDRESS_TYPE_LENGTH;
+ }
+ if (PREDICT_TRUE (ip6_addr != NULL))
+ {
+ /* Create room for variable-length fields in the INIT_ACK chunk */
+ alloc_bytes += SCTP_IPV6_ADDRESS_TYPE_LENGTH;
+ }
+
+ if (sctp_conn->sub_conn[idx].connection.is_ip4)
+ alloc_bytes += sizeof (sctp_ipv4_addr_param_t);
+ else
+ alloc_bytes += sizeof (sctp_ipv6_addr_param_t);
+
+ /* As per RFC 4960 the chunk_length value does NOT contemplate
+ * the size of the first header (see sctp_header_t) and any padding
+ */
+ u16 chunk_len = alloc_bytes - sizeof (sctp_header_t);
+
+ alloc_bytes += vnet_sctp_calculate_padding (alloc_bytes);
+
+ sctp_init_ack_chunk_t *init_ack_chunk =
+ vlib_buffer_push_uninit (b, alloc_bytes);
+
+ u16 pointer_offset = sizeof (sctp_init_ack_chunk_t);
+
+ /* Create State Cookie parameter */
+ sctp_state_cookie_param_t *state_cookie_param =
+ (sctp_state_cookie_param_t *) ((char *) init_ack_chunk + pointer_offset);
+
+ state_cookie_param->param_hdr.type =
+ clib_host_to_net_u16 (SCTP_STATE_COOKIE_TYPE);
+ state_cookie_param->param_hdr.length =
+ clib_host_to_net_u16 (sizeof (sctp_state_cookie_param_t));
+ state_cookie_param->creation_time = clib_host_to_net_u32 (sctp_time_now ());
+ state_cookie_param->cookie_lifespan =
+ clib_host_to_net_u32 (SCTP_VALID_COOKIE_LIFE);
+
+ sctp_compute_mac (sctp_conn, state_cookie_param);
+
+ pointer_offset += sizeof (sctp_state_cookie_param_t);
+
+ if (PREDICT_TRUE (ip4_addr != NULL))
+ {
+ sctp_ipv4_addr_param_t *ipv4_addr =
+ (sctp_ipv4_addr_param_t *) init_ack_chunk + pointer_offset;
+
+ ipv4_addr->param_hdr.type =
+ clib_host_to_net_u16 (SCTP_IPV4_ADDRESS_TYPE);
+ ipv4_addr->param_hdr.length =
+ clib_host_to_net_u16 (SCTP_IPV4_ADDRESS_TYPE_LENGTH);
+ ipv4_addr->address.as_u32 = ip4_addr->as_u32;
+
+ pointer_offset += SCTP_IPV4_ADDRESS_TYPE_LENGTH;
+ }
+ if (PREDICT_TRUE (ip6_addr != NULL))
+ {
+ sctp_ipv6_addr_param_t *ipv6_addr =
+ (sctp_ipv6_addr_param_t *) init_ack_chunk + pointer_offset;
+
+ ipv6_addr->param_hdr.type =
+ clib_host_to_net_u16 (SCTP_IPV6_ADDRESS_TYPE);
+ ipv6_addr->param_hdr.length =
+ clib_host_to_net_u16 (SCTP_IPV6_ADDRESS_TYPE_LENGTH);
+ ipv6_addr->address.as_u64[0] = ip6_addr->as_u64[0];
+ ipv6_addr->address.as_u64[1] = ip6_addr->as_u64[1];
+
+ pointer_offset += SCTP_IPV6_ADDRESS_TYPE_LENGTH;
+ }
+
+ if (sctp_conn->sub_conn[idx].connection.is_ip4)
+ {
+ ip4_param = (sctp_ipv4_addr_param_t *) init_ack_chunk + pointer_offset;
+ ip4_param->address.as_u32 =
+ sctp_conn->sub_conn[idx].connection.lcl_ip.ip4.as_u32;
+
+ pointer_offset += sizeof (sctp_ipv4_addr_param_t);
+ }
+ else
+ {
+ ip6_param = (sctp_ipv6_addr_param_t *) init_ack_chunk + pointer_offset;
+ ip6_param->address.as_u64[0] =
+ sctp_conn->sub_conn[idx].connection.lcl_ip.ip6.as_u64[0];
+ ip6_param->address.as_u64[1] =
+ sctp_conn->sub_conn[idx].connection.lcl_ip.ip6.as_u64[1];
+
+ pointer_offset += sizeof (sctp_ipv6_addr_param_t);
+ }
+
+ /* src_port & dst_port are already in network byte-order */
+ init_ack_chunk->sctp_hdr.checksum = 0;
+ init_ack_chunk->sctp_hdr.src_port =
+ sctp_conn->sub_conn[idx].connection.lcl_port;
+ init_ack_chunk->sctp_hdr.dst_port =
+ sctp_conn->sub_conn[idx].connection.rmt_port;
+ /* the sctp_conn->verification_tag is already in network byte-order (being a copy of the init_tag coming with the INIT chunk) */
+ init_ack_chunk->sctp_hdr.verification_tag = sctp_conn->remote_tag;
+ init_ack_chunk->initial_tsn =
+ clib_host_to_net_u32 (sctp_conn->local_initial_tsn);
+ SCTP_CONN_TRACKING_DBG ("init_ack_chunk->initial_tsn = %u",
+ init_ack_chunk->initial_tsn);
+
+ vnet_sctp_set_chunk_type (&init_ack_chunk->chunk_hdr, INIT_ACK);
+ vnet_sctp_set_chunk_length (&init_ack_chunk->chunk_hdr, chunk_len);
+
+ init_ack_chunk->initiate_tag = sctp_conn->local_tag;
+
+ init_ack_chunk->a_rwnd =
+ clib_host_to_net_u32 (sctp_conn->sub_conn[idx].cwnd);
+ init_ack_chunk->inboud_streams_count =
+ clib_host_to_net_u16 (INBOUND_STREAMS_COUNT);
+ init_ack_chunk->outbound_streams_count =
+ clib_host_to_net_u16 (OUTBOUND_STREAMS_COUNT);
+
+ vnet_buffer (b)->sctp.connection_index =
+ sctp_conn->sub_conn[idx].connection.c_index;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/**
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/**
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/*
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/*
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/**
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
/**
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
void
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
void
vlib_buffer_push_uninit (b, bytes_to_add);
u8 idx = sctp_data_subconn_select (sctp_conn);
-
+ SCTP_DBG_OUTPUT
+ ("SCTP_CONN = %p, IDX = %u, S_INDEX = %u, C_INDEX = %u, sctp_conn->[...].LCL_PORT = %u, sctp_conn->[...].RMT_PORT = %u",
+ sctp_conn, idx, sctp_conn->sub_conn[idx].connection.s_index,
+ sctp_conn->sub_conn[idx].connection.c_index,
+ sctp_conn->sub_conn[idx].connection.lcl_port,
+ sctp_conn->sub_conn[idx].connection.rmt_port);
data_chunk->sctp_hdr.checksum = 0;
data_chunk->sctp_hdr.src_port =
sctp_conn->sub_conn[idx].connection.lcl_port;
vnet_buffer (b)->sctp.connection_index =
sctp_conn->sub_conn[idx].connection.c_index;
- vnet_buffer (b)->sctp.conn_idx = idx;
+ vnet_buffer (b)->sctp.subconn_idx = idx;
}
u32
sctp_connection_t *sctp_conn =
sctp_get_connection_from_transport (trans_conn);
+ SCTP_DBG_OUTPUT ("TRANS_CONN = %p, SCTP_CONN = %p, "
+ "S_INDEX = %u, C_INDEX = %u,"
+ "trans_conn->LCL_PORT = %u, trans_conn->RMT_PORT = %u",
+ trans_conn,
+ sctp_conn,
+ trans_conn->s_index,
+ trans_conn->c_index,
+ trans_conn->lcl_port, trans_conn->rmt_port);
+
sctp_push_hdr_i (sctp_conn, b, SCTP_STATE_ESTABLISHED);
sctp_trajectory_add_start (b0, 3);
goto done;
}
- u8 idx = vnet_buffer (b0)->sctp.conn_idx;
+ u8 idx = vnet_buffer (b0)->sctp.subconn_idx;
th0 = vlib_buffer_get_current (b0);
Code Review / vpp.git / blobdiff