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h2o-probes.d
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h2o-probes.d
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/*
* Copyright (c) 2019 Fastly, Kazuho Oku
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/* @appdata
{
"receive_request_header": ["name", "value"],
"send_response_header": ["name", "value"],
"h3_frame_receive": ["bytes"],
"tunnel_on_read": ["bytes"],
"tunnel_write": ["bytes"]
}
*/
provider h2o {
/**
* When a new connection is accepted, h2o invokes this probe to obtain the flags to be associated to the new connection. The
* probe MUST write the result into the h2o_return map; see ebpf.h for details. `original_flags` contain the flags that will be
* associated when the probe is not attached.
*
* Do not use it for a tracing event.
*/
probe _private_socket_lookup_flags(pid_t tid, uint64_t original_flags, struct st_h2o_ebpf_map_key_t *info);
/**
* Same as `_private_socket_lookup_flags`, expect that this probe is invoked when SNI is being obtained.
*/
probe _private_socket_lookup_flags_sni(pid_t tid, uint64_t original_flags, const char *server_name, size_t server_name_len);
/**
* HTTP-level event, indicating that a request has been received.
*/
probe receive_request(uint64_t conn_id, uint64_t req_id, int http_version);
/**
* HTTP-level event, indicating the request header fields being received.
*/
probe receive_request_header(uint64_t conn_id, uint64_t req_id, const char *name, size_t name_len, const char *value,
size_t value_len);
/**
* HTTP-level event, indicating that a response has been sent.
*/
probe send_response(uint64_t conn_id, uint64_t req_id, int status, struct st_h2o_tunnel_t *tunnel);
/**
* HTTP-level event, indicating the response header fields being sent.
*/
probe send_response_header(uint64_t conn_id, uint64_t req_id, const char *name, size_t name_len, const char *value,
size_t value_len);
/**
* HTTP/1 server-level event, indicating that a connection has been accepted.
*/
probe h1_accept(uint64_t conn_id, struct st_h2o_socket_t *sock, struct st_h2o_conn_t *conn, const char *conn_uuid);
/**
* HTTP/1 server-level event, indicating that a connection has been closed.
*/
probe h1_close(uint64_t conn_id);
/**
* HTTP/2 server-level event, indicating that a frame of unknown type has been received.
*/
probe h2_unknown_frame_type(uint64_t conn_id, uint8_t frame_type);
/**
* HTTP/3 server-level event, indicating that a new connection has been accepted
*/
probe h3s_accept(uint64_t conn_id, struct st_h2o_conn_t *conn, struct st_quicly_conn_t *quic, const char *conn_uuid);
/**
* HTTP/3 server-level event, indicating that a connection has been destroyed
*/
probe h3s_destroy(uint64_t conn_id);
/**
* HTTP/3 server-level event, indicating that a state of a request stream has been altered
*/
probe h3s_stream_set_state(uint64_t conn_id, uint64_t req_id, unsigned state);
/**
* HTTP/3 event, indicating that a H3 frame has been received. `bytes` is available except when frame_type is DATA.
*/
probe h3_frame_receive(uint64_t frame_type, const void *bytes, size_t bytes_len);
/**
* HTTP/3 event, indicating that a QUIC packet has been received.
*/
probe h3_packet_receive(struct sockaddr *dest, struct sockaddr *src, const void *bytes, size_t bytes_len);
/**
* HTTP/3 event, indicating that a QUIC packet has been forwarded.
*/
probe h3_packet_forward(struct sockaddr *dest, struct sockaddr *src, size_t num_packets, size_t num_bytes, int fd);
/**
* HTTP/3 event, indicating that a forwarded QUIC packet has been received.
*/
probe h3_forwarded_packet_receive(struct sockaddr *dest, struct sockaddr *src, size_t num_bytes);
/**
* FIXME define probes for http3client, aligning the arguments of `h2o_tunnel_create`
*/
probe h3c_tunnel_create(struct st_h2o_tunnel_t *tunnel);
probe tunnel_on_destroy(struct st_h2o_tunnel_t *tunnel);
probe tunnel_on_read(struct st_h2o_tunnel_t *tunnel, const char *err, const void *bytes, size_t bytes_len);
probe tunnel_proceed_read(struct st_h2o_tunnel_t *tunnel);
probe tunnel_write(struct st_h2o_tunnel_t *tunnel, const void *bytes, size_t bytes_len);
probe tunnel_on_write_complete(struct st_h2o_tunnel_t *tunnel, const char *err);
probe socket_tunnel_create(struct st_h2o_tunnel_t *tunnel);
probe socket_tunnel_start(struct st_h2o_tunnel_t *tunnel, size_t bytes_to_consume);
};