h2frame.c File Reference

Include dependency graph for h2frame.c:

Data Structures
struct	vlc_h2_parser
	HTTP/2 incoming frames parser. More...

Macros
#define	vlc_h2_frame_payload(f)   ((f)->data + 9)

Typedefs
typedef int(*	vlc_h2_parser) (struct vlc_h2_parser *, struct vlc_h2_frame *, size_t, uint_fast32_t)

Enumerations
enum	{   VLC_H2_FRAME_DATA, VLC_H2_FRAME_HEADERS, VLC_H2_FRAME_PRIORITY, VLC_H2_FRAME_RST_STREAM,   VLC_H2_FRAME_SETTINGS, VLC_H2_FRAME_PUSH_PROMISE, VLC_H2_FRAME_PING, VLC_H2_FRAME_GOAWAY,   VLC_H2_FRAME_WINDOW_UPDATE, VLC_H2_FRAME_CONTINUATION }
enum	{ VLC_H2_DATA_END_STREAM = 0x01, VLC_H2_DATA_PADDED = 0x08 }
enum	{ VLC_H2_HEADERS_END_STREAM = 0x01, VLC_H2_HEADERS_END_HEADERS = 0x04, VLC_H2_HEADERS_PADDED = 0x08, VLC_H2_HEADERS_PRIORITY = 0x20 }
enum	{ VLC_H2_SETTINGS_ACK = 0x01 }
enum	{ VLC_H2_PUSH_PROMISE_END_HEADERS = 0x04, VLC_H2_PUSH_PROMISE_PADDED = 0x08 }
enum	{ VLC_H2_PING_ACK = 0x01 }
enum	{ VLC_H2_CONTINUATION_END_HEADERS = 0x04 }

Functions
static struct vlc_h2_frame *	vlc_h2_frame_alloc (uint_fast8_t type, uint_fast8_t flags, uint_fast32_t stream_id, size_t length)
static uint_fast32_t	vlc_h2_frame_length (const struct vlc_h2_frame *f)
size_t	vlc_h2_frame_size (const struct vlc_h2_frame *f)
static uint_fast8_t	vlc_h2_frame_type (const struct vlc_h2_frame *f)
static uint_fast8_t	vlc_h2_frame_flags (const struct vlc_h2_frame *f)
static uint_fast32_t	vlc_h2_frame_id (const struct vlc_h2_frame *f)
static const char *	vlc_h2_type_name (uint_fast8_t type)
struct vlc_h2_frame *	vlc_h2_frame_headers (uint_fast32_t stream_id, uint_fast32_t mtu, bool eos, unsigned count, const char *const headers[][2])
struct vlc_h2_frame *	vlc_h2_frame_data (uint_fast32_t stream_id, const void *buf, size_t len, bool eos)
struct vlc_h2_frame *	vlc_h2_frame_rst_stream (uint_fast32_t stream_id, uint_fast32_t error_code)
struct vlc_h2_frame *	vlc_h2_frame_settings (void)
struct vlc_h2_frame *	vlc_h2_frame_settings_ack (void)
const char *	vlc_h2_setting_name (uint_fast16_t id)
struct vlc_h2_frame *	vlc_h2_frame_ping (uint64_t opaque)
struct vlc_h2_frame *	vlc_h2_frame_pong (uint64_t opaque)
struct vlc_h2_frame *	vlc_h2_frame_goaway (uint_fast32_t last_stream_id, uint_fast32_t error_code)
struct vlc_h2_frame *	vlc_h2_frame_window_update (uint_fast32_t stream_id, uint_fast32_t credit)
const char *	vlc_h2_strerror (uint_fast32_t code)
void	vlc_h2_frame_dump (void *opaque, const struct vlc_h2_frame *f, const char *msg)
const uint8_t *()	vlc_h2_frame_data_get (const struct vlc_h2_frame *f, size_t *restrict lenp)
static int	vlc_h2_parse_generic (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses any HTTP/2 frame. More...
static int	vlc_h2_parse_headers_block (struct vlc_h2_parser *, struct vlc_h2_frame *, size_t, uint_fast32_t)
static int	vlc_h2_parse_error (struct vlc_h2_parser *p, uint_fast32_t code)
static int	vlc_h2_stream_error (struct vlc_h2_parser *p, uint_fast32_t id, uint_fast32_t code)
static void *	vlc_h2_stream_lookup (struct vlc_h2_parser *p, uint_fast32_t id)
static void	vlc_h2_parse_headers_start (struct vlc_h2_parser *p, uint_fast32_t sid, bool eos)
static int	vlc_h2_parse_headers_append (struct vlc_h2_parser *p, const uint8_t *data, size_t len)
static int	vlc_h2_parse_headers_end (struct vlc_h2_parser *p)
static int	vlc_h2_parse_frame_data (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 DATA frame. More...
static int	vlc_h2_parse_frame_headers (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 HEADERS frame. More...
static int	vlc_h2_parse_frame_priority (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 PRIORITY frame. More...
static int	vlc_h2_parse_frame_rst_stream (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 RST_STREAM frame. More...
static int	vlc_h2_parse_frame_settings (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 SETTINGS frame. More...
static int	vlc_h2_parse_frame_push_promise (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 PUSH_PROMISE frame. More...
static int	vlc_h2_parse_frame_ping (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 PING frame. More...
static int	vlc_h2_parse_frame_goaway (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 GOAWAY frame. More...
static int	vlc_h2_parse_frame_window_update (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 WINDOW_UPDATE frame. More...
static int	vlc_h2_parse_frame_continuation (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 CONTINUATION frame. More...
static int	vlc_h2_parse_frame_unknown (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses an HTTP/2 frame of unknown type. More...
static int	vlc_h2_parse_preface (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
	Parses the HTTP/2 connection preface. More...
static int	vlc_h2_parse_failed (struct vlc_h2_parser *p, struct vlc_h2_frame *f, size_t len, uint_fast32_t id)
int	vlc_h2_parse (struct vlc_h2_parser *p, struct vlc_h2_frame *f)
struct vlc_h2_parser *	vlc_h2_parse_init (void *ctx, const struct vlc_h2_parser_cbs *cbs)
void	vlc_h2_parse_destroy (struct vlc_h2_parser *p)

Variables
static const vlc_h2_parser	vlc_h2_parsers []

Macro Definition Documentation

vlc_h2_frame_payload

#define vlc_h2_frame_payload

(

f

)

((f)->data + 9)

Typedef Documentation

vlc_h2_parser

typedef int(* vlc_h2_parser) (struct vlc_h2_parser *, struct vlc_h2_frame *, size_t, uint_fast32_t)

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
VLC_H2_FRAME_DATA
VLC_H2_FRAME_HEADERS
VLC_H2_FRAME_PRIORITY
VLC_H2_FRAME_RST_STREAM
VLC_H2_FRAME_SETTINGS
VLC_H2_FRAME_PUSH_PROMISE
VLC_H2_FRAME_PING
VLC_H2_FRAME_GOAWAY
VLC_H2_FRAME_WINDOW_UPDATE
VLC_H2_FRAME_CONTINUATION

anonymous enum

anonymous enum

Enumerator
VLC_H2_DATA_END_STREAM
VLC_H2_DATA_PADDED

anonymous enum

anonymous enum

Enumerator
VLC_H2_HEADERS_END_STREAM
VLC_H2_HEADERS_END_HEADERS
VLC_H2_HEADERS_PADDED
VLC_H2_HEADERS_PRIORITY

anonymous enum

anonymous enum

Enumerator
VLC_H2_SETTINGS_ACK

anonymous enum

anonymous enum

Enumerator
VLC_H2_PUSH_PROMISE_END_HEADERS
VLC_H2_PUSH_PROMISE_PADDED

anonymous enum

anonymous enum

Enumerator
VLC_H2_PING_ACK

anonymous enum

anonymous enum

Enumerator
VLC_H2_CONTINUATION_END_HEADERS

Function Documentation

vlc_h2_frame_alloc()

static struct vlc_h2_frame* vlc_h2_frame_alloc ( uint_fast8_t  type, uint_fast8_t  flags, uint_fast32_t  stream_id, size_t  length  )

static

References vlc_h2_frame::data, vlc_h2_frame::next, SetDWBE(), and unlikely.

Referenced by vlc_h2_frame_data(), vlc_h2_frame_goaway(), vlc_h2_frame_headers(), vlc_h2_frame_ping(), vlc_h2_frame_pong(), vlc_h2_frame_rst_stream(), vlc_h2_frame_settings(), vlc_h2_frame_settings_ack(), and vlc_h2_frame_window_update().

vlc_h2_frame_flags()

static uint_fast8_t vlc_h2_frame_flags ( const struct vlc_h2_frame *  f )

static

References vlc_h2_frame::data.

Referenced by vlc_h2_frame_data_get(), vlc_h2_frame_dump(), vlc_h2_parse_frame_continuation(), vlc_h2_parse_frame_data(), vlc_h2_parse_frame_headers(), vlc_h2_parse_frame_ping(), vlc_h2_parse_frame_push_promise(), vlc_h2_parse_frame_settings(), and vlc_h2_parse_preface().

vlc_h2_frame_id()

static uint_fast32_t vlc_h2_frame_id ( const struct vlc_h2_frame *  f )

static

References vlc_h2_frame::data, and GetDWBE.

Referenced by vlc_h2_frame_dump(), and vlc_h2_parse().

vlc_h2_frame_length()

static uint_fast32_t vlc_h2_frame_length ( const struct vlc_h2_frame *  f )

static

References vlc_h2_frame::data.

Referenced by vlc_h2_frame_data_get(), vlc_h2_frame_dump(), vlc_h2_frame_size(), and vlc_h2_parse().

vlc_h2_frame_type()

static uint_fast8_t vlc_h2_frame_type ( const struct vlc_h2_frame *  f )

static

References vlc_h2_frame::data.

Referenced by vlc_h2_frame_data_get(), vlc_h2_frame_dump(), vlc_h2_parse_generic(), vlc_h2_parse_headers_block(), and vlc_h2_parse_preface().

vlc_h2_parse_error()

static int vlc_h2_parse_error ( struct vlc_h2_parser *  p, uint_fast32_t  code  )

static

References p.

Referenced by vlc_h2_parse_frame_continuation(), vlc_h2_parse_frame_data(), vlc_h2_parse_frame_goaway(), vlc_h2_parse_frame_headers(), vlc_h2_parse_frame_ping(), vlc_h2_parse_frame_priority(), vlc_h2_parse_frame_push_promise(), vlc_h2_parse_frame_rst_stream(), vlc_h2_parse_frame_settings(), vlc_h2_parse_frame_unknown(), vlc_h2_parse_frame_window_update(), vlc_h2_parse_headers_append(), vlc_h2_parse_headers_block(), vlc_h2_parse_headers_end(), and vlc_h2_parse_preface().

vlc_h2_parse_failed()

static int vlc_h2_parse_failed ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

References p.

Referenced by vlc_h2_parse().

vlc_h2_parse_frame_continuation()

static int vlc_h2_parse_frame_continuation ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 CONTINUATION frame.

References p, VLC_H2_CONTINUATION_END_HEADERS, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), vlc_h2_parse_headers_append(), vlc_h2_parse_headers_end(), and VLC_H2_PROTOCOL_ERROR.

Referenced by vlc_h2_parse_headers_block().

vlc_h2_parse_frame_data()

static int vlc_h2_parse_frame_data ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 DATA frame.

References p, VLC_H2_DATA_END_STREAM, VLC_H2_DATA_PADDED, VLC_H2_FLOW_CONTROL_ERROR, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), VLC_H2_PROTOCOL_ERROR, VLC_H2_STREAM_CLOSED, vlc_h2_stream_error(), and vlc_h2_stream_lookup().

vlc_h2_parse_frame_goaway()

static int vlc_h2_parse_frame_goaway ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 GOAWAY frame.

References GetDWBE, p, vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), and VLC_H2_PROTOCOL_ERROR.

vlc_h2_parse_frame_headers()

static int vlc_h2_parse_frame_headers ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 HEADERS frame.

References p, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_HEADERS_END_HEADERS, VLC_H2_HEADERS_END_STREAM, VLC_H2_HEADERS_PADDED, VLC_H2_HEADERS_PRIORITY, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), vlc_h2_parse_headers_append(), vlc_h2_parse_headers_end(), vlc_h2_parse_headers_start(), and VLC_H2_PROTOCOL_ERROR.

vlc_h2_parse_frame_ping()

static int vlc_h2_parse_frame_ping ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 PING frame.

References p, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, vlc_h2_parse_error(), VLC_H2_PING_ACK, and VLC_H2_PROTOCOL_ERROR.

vlc_h2_parse_frame_priority()

static int vlc_h2_parse_frame_priority ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 PRIORITY frame.

References p, VLC_H2_FRAME_SIZE_ERROR, vlc_h2_parse_error(), VLC_H2_PROTOCOL_ERROR, and vlc_h2_stream_error().

vlc_h2_parse_frame_push_promise()

static int vlc_h2_parse_frame_push_promise ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 PUSH_PROMISE frame.

References p, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), VLC_H2_PROTOCOL_ERROR, and VLC_H2_PUSH_PROMISE_PADDED.

vlc_h2_parse_frame_rst_stream()

static int vlc_h2_parse_frame_rst_stream ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 RST_STREAM frame.

References GetDWBE, p, vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, vlc_h2_parse_error(), VLC_H2_PROTOCOL_ERROR, and vlc_h2_stream_lookup().

vlc_h2_parse_frame_settings()

static int vlc_h2_parse_frame_settings ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 SETTINGS frame.

References GetDWBE, GetWBE, p, vlc_h2_frame_flags(), vlc_h2_frame_payload, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), VLC_H2_PROTOCOL_ERROR, and VLC_H2_SETTINGS_ACK.

Referenced by vlc_h2_parse_preface().

vlc_h2_parse_frame_unknown()

static int vlc_h2_parse_frame_unknown ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 frame of unknown type.

References p, VLC_H2_FRAME_SIZE_ERROR, VLC_H2_MAX_FRAME, vlc_h2_parse_error(), and vlc_h2_stream_error().

Referenced by vlc_h2_parse_generic().

vlc_h2_parse_frame_window_update()

static int vlc_h2_parse_frame_window_update ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses an HTTP/2 WINDOW_UPDATE frame.

References p, VLC_H2_FRAME_SIZE_ERROR, vlc_h2_parse_error(), and vlc_h2_stream_error().

vlc_h2_parse_generic()

static int vlc_h2_parse_generic ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses any HTTP/2 frame.

References p, vlc_h2_frame_type(), vlc_h2_parse_frame_unknown(), and vlc_h2_parsers.

Referenced by vlc_h2_parse_headers_end(), and vlc_h2_parse_preface().

vlc_h2_parse_headers_append()

static int vlc_h2_parse_headers_append ( struct vlc_h2_parser *  p, const uint8_t *  data, size_t  len  )

static

References p, unlikely, VLC_H2_INTERNAL_ERROR, and vlc_h2_parse_error().

Referenced by vlc_h2_parse_frame_continuation(), and vlc_h2_parse_frame_headers().

vlc_h2_parse_headers_block()

static int vlc_h2_parse_headers_block ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

References p, VLC_H2_FRAME_CONTINUATION, vlc_h2_frame_type(), vlc_h2_parse_error(), vlc_h2_parse_frame_continuation(), and VLC_H2_PROTOCOL_ERROR.

Referenced by vlc_h2_parse_headers_start().

vlc_h2_parse_headers_end()

static int vlc_h2_parse_headers_end ( struct vlc_h2_parser *  p )

static

References hpack_decode(), p, VLC_H2_COMPRESSION_ERROR, VLC_H2_MAX_HEADERS, vlc_h2_parse_error(), vlc_h2_parse_generic(), VLC_H2_REFUSED_STREAM, vlc_h2_stream_error(), and vlc_h2_stream_lookup().

Referenced by vlc_h2_parse_frame_continuation(), and vlc_h2_parse_frame_headers().

vlc_h2_parse_headers_start()

static void vlc_h2_parse_headers_start ( struct vlc_h2_parser *  p, uint_fast32_t  sid, bool  eos  )

static

References p, and vlc_h2_parse_headers_block().

Referenced by vlc_h2_parse_frame_headers().

vlc_h2_parse_preface()

static int vlc_h2_parse_preface ( struct vlc_h2_parser *  p, struct vlc_h2_frame *  f, size_t  len, uint_fast32_t  id  )

static

Parses the HTTP/2 connection preface.

References p, VLC_H2_DEFAULT_MAX_FRAME, vlc_h2_frame_flags(), VLC_H2_FRAME_SETTINGS, vlc_h2_frame_type(), vlc_h2_parse_error(), vlc_h2_parse_frame_settings(), vlc_h2_parse_generic(), VLC_H2_PROTOCOL_ERROR, and VLC_H2_SETTINGS_ACK.

Referenced by vlc_h2_parse_init().

vlc_h2_stream_error()

static int vlc_h2_stream_error ( struct vlc_h2_parser *  p, uint_fast32_t  id, uint_fast32_t  code  )

static

References p.

Referenced by vlc_h2_parse_frame_data(), vlc_h2_parse_frame_priority(), vlc_h2_parse_frame_unknown(), vlc_h2_parse_frame_window_update(), and vlc_h2_parse_headers_end().

vlc_h2_stream_lookup()

static void* vlc_h2_stream_lookup ( struct vlc_h2_parser *  p, uint_fast32_t  id  )

static

References p.

Referenced by vlc_h2_parse_frame_data(), vlc_h2_parse_frame_rst_stream(), and vlc_h2_parse_headers_end().

vlc_h2_type_name()

static const char* vlc_h2_type_name ( uint_fast8_t  type )

static

References VLC_H2_FRAME_CONTINUATION, VLC_H2_FRAME_DATA, VLC_H2_FRAME_GOAWAY, VLC_H2_FRAME_HEADERS, VLC_H2_FRAME_PING, VLC_H2_FRAME_PRIORITY, VLC_H2_FRAME_PUSH_PROMISE, VLC_H2_FRAME_RST_STREAM, VLC_H2_FRAME_SETTINGS, and VLC_H2_FRAME_WINDOW_UPDATE.

Referenced by vlc_h2_frame_dump().

Variable Documentation

vlc_h2_parsers

const vlc_h2_parser vlc_h2_parsers[]

static

Initial value:

= {
    [VLC_H2_FRAME_DATA]          = vlc_h2_parse_frame_data,
    [VLC_H2_FRAME_HEADERS]       = vlc_h2_parse_frame_headers,
    [VLC_H2_FRAME_PRIORITY]      = vlc_h2_parse_frame_priority,
    [VLC_H2_FRAME_RST_STREAM]    = vlc_h2_parse_frame_rst_stream,
    [VLC_H2_FRAME_SETTINGS]      = vlc_h2_parse_frame_settings,
    [VLC_H2_FRAME_PUSH_PROMISE]  = vlc_h2_parse_frame_push_promise,
    [VLC_H2_FRAME_PING]          = vlc_h2_parse_frame_ping,
    [VLC_H2_FRAME_GOAWAY]        = vlc_h2_parse_frame_goaway,
    [VLC_H2_FRAME_WINDOW_UPDATE] = vlc_h2_parse_frame_window_update,
    [VLC_H2_FRAME_CONTINUATION]  = vlc_h2_parse_frame_continuation,
}

Referenced by vlc_h2_parse_generic().