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nginx-spdy-1.11.11+.patch
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From 3a8fe43e9e073f26e44f62ad072079acd8b78de3 Mon Sep 17 00:00:00 2001
From: Jiale Zhi and Felix Buenemann
Date: Mon, 30 May 2016 00:00:29 +0200
Subject: [PATCH] Add SPDY support back to Nginx with HTTP/2
Ported to 1.9.15 from 1.9.7 patch by Jiale Zhi from CloudFlare with
additional fixes to re-enable deprecated spdy directives and fix
compilation with http_v2 module enabled and spdy disabled.
---
auto/modules | 31 +
auto/options | 3 +
src/core/ngx_connection.h | 1 +
src/http/modules/ngx_http_ssl_module.c | 55 +-
src/http/ngx_http.c | 27 +
src/http/ngx_http.h | 6 +
src/http/ngx_http_core_module.c | 22 +-
src/http/ngx_http_core_module.h | 6 +
src/http/ngx_http_request.c | 57 +
src/http/ngx_http_request.h | 3 +
src/http/ngx_http_request_body.c | 12 +
src/http/ngx_http_spdy.c | 3701 ++++++++++++++++++++++++++++++++
src/http/ngx_http_spdy.h | 261 +++
src/http/ngx_http_spdy_filter_module.c | 1222 +++++++++++
src/http/ngx_http_spdy_module.c | 408 ++++
src/http/ngx_http_spdy_module.h | 41 +
src/http/ngx_http_upstream.c | 11 +
src/http/v2/ngx_http_v2_module.c | 69 -
18 files changed, 5858 insertions(+), 78 deletions(-)
create mode 100644 src/http/ngx_http_spdy.c
create mode 100644 src/http/ngx_http_spdy.h
create mode 100644 src/http/ngx_http_spdy_filter_module.c
create mode 100644 src/http/ngx_http_spdy_module.c
create mode 100644 src/http/ngx_http_spdy_module.h
diff --git a/auto/modules b/auto/modules
index 22ff6d9..42966dd 100644
--- a/auto/modules
+++ b/auto/modules
@@ -134,6 +134,7 @@
# ngx_http_header_filter
# ngx_http_chunked_filter
# ngx_http_v2_filter
+ # ngx_http_spdy_filter
# ngx_http_range_header_filter
# ngx_http_gzip_filter
# ngx_http_postpone_filter
@@ -166,6 +167,7 @@
ngx_http_header_filter_module \
ngx_http_chunked_filter_module \
ngx_http_v2_filter_module \
+ ngx_http_spdy_filter_module \
ngx_http_range_header_filter_module \
ngx_http_gzip_filter_module \
ngx_http_postpone_filter_module \
@@ -227,6 +229,21 @@
. auto/module
fi
+ if [ $HTTP_SPDY = YES ]; then
+ have=NGX_HTTP_SPDY . auto/have
+ USE_ZLIB=YES
+
+ ngx_module_name=ngx_http_spdy_filter_module
+ ngx_module_incs=
+ ngx_module_deps=
+ ngx_module_srcs=src/http/ngx_http_spdy_filter_module.c
+ ngx_module_libs=
+ ngx_module_link=$HTTP_SPDY
+
+ . auto/module
+ fi
+
+
if :; then
ngx_module_name=ngx_http_range_header_filter_module
ngx_module_incs=
@@ -436,6 +453,20 @@
. auto/module
fi
+ if [ $HTTP_SPDY = YES ]; then
+ have=NGX_HTTP_SPDY . auto/have
+
+ ngx_module_name=ngx_http_spdy_module
+ ngx_module_incs=src/http
+ ngx_module_deps="src/http/ngx_http_spdy.h src/http/ngx_http_spdy_module.h"
+ ngx_module_srcs="src/http/ngx_http_spdy.c \
+ src/http/ngx_http_spdy_module.c"
+ ngx_module_libs=
+ ngx_module_link=$HTTP_SPDY
+
+ . auto/module
+ fi
+
if :; then
ngx_module_name=ngx_http_static_module
ngx_module_incs=
diff --git a/auto/options b/auto/options
index ac8beb1..a8d8c6e 100644
--- a/auto/options
+++ b/auto/options
@@ -60,6 +60,7 @@ HTTP_CHARSET=YES
HTTP_GZIP=YES
HTTP_SSL=NO
HTTP_V2=NO
+HTTP_SPDY=NO
HTTP_SSI=YES
HTTP_POSTPONE=NO
HTTP_REALIP=NO
@@ -219,6 +220,7 @@ do
--with-http_ssl_module) HTTP_SSL=YES ;;
--with-http_v2_module) HTTP_V2=YES ;;
+ --with-http_spdy_module) HTTP_SPDY=YES ;;
--with-http_realip_module) HTTP_REALIP=YES ;;
--with-http_addition_module) HTTP_ADDITION=YES ;;
--with-http_xslt_module) HTTP_XSLT=YES ;;
@@ -398,6 +400,7 @@ cat << END
--with-http_ssl_module enable ngx_http_ssl_module
--with-http_v2_module enable ngx_http_v2_module
+ --with-http_spdy_module enable ngx_http_spdy_module
--with-http_realip_module enable ngx_http_realip_module
--with-http_addition_module enable ngx_http_addition_module
--with-http_xslt_module enable ngx_http_xslt_module
diff --git a/src/core/ngx_connection.h b/src/core/ngx_connection.h
index b0d162a..bee16de 100644
--- a/src/core/ngx_connection.h
+++ b/src/core/ngx_connection.h
@@ -120,6 +120,7 @@ typedef enum {
#define NGX_LOWLEVEL_BUFFERED 0x0f
#define NGX_SSL_BUFFERED 0x01
#define NGX_HTTP_V2_BUFFERED 0x02
+#define NGX_SPDY_BUFFERED 0x04
struct ngx_connection_s {
diff --git a/src/http/modules/ngx_http_ssl_module.c b/src/http/modules/ngx_http_ssl_module.c
index 6a4108c..0016991 100644
--- a/src/http/modules/ngx_http_ssl_module.c
+++ b/src/http/modules/ngx_http_ssl_module.c
@@ -326,10 +326,10 @@ ngx_http_ssl_alpn_select(ngx_ssl_conn_t *ssl_conn, const unsigned char **out,
#if (NGX_DEBUG)
unsigned int i;
#endif
-#if (NGX_HTTP_V2)
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY)
ngx_http_connection_t *hc;
#endif
-#if (NGX_HTTP_V2 || NGX_DEBUG)
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY || NGX_DEBUG)
ngx_connection_t *c;
c = ngx_ssl_get_connection(ssl_conn);
@@ -343,9 +343,20 @@ ngx_http_ssl_alpn_select(ngx_ssl_conn_t *ssl_conn, const unsigned char **out,
}
#endif
-#if (NGX_HTTP_V2)
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY)
hc = c->data;
+#endif
+#if (NGX_HTTP_V2 && NGX_HTTP_SPDY)
+ if (hc->addr_conf->http2 && hc->addr_conf->spdy) {
+ srv = (unsigned char *) NGX_HTTP_V2_ALPN_ADVERTISE
+ NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
+ srvlen = sizeof(NGX_HTTP_V2_ALPN_ADVERTISE NGX_SPDY_NPN_ADVERTISE
+ NGX_HTTP_NPN_ADVERTISE) - 1;
+
+ } else
+#endif
+#if (NGX_HTTP_V2)
if (hc->addr_conf->http2) {
srv =
(unsigned char *) NGX_HTTP_V2_ALPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
@@ -353,6 +364,13 @@ ngx_http_ssl_alpn_select(ngx_ssl_conn_t *ssl_conn, const unsigned char **out,
} else
#endif
+#if (NGX_HTTP_SPDY)
+ if (hc->addr_conf->spdy) {
+ srv = (unsigned char *) NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
+ srvlen = sizeof(NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
+
+ } else
+#endif
{
srv = (unsigned char *) NGX_HTTP_NPN_ADVERTISE;
srvlen = sizeof(NGX_HTTP_NPN_ADVERTISE) - 1;
@@ -380,19 +398,32 @@ static int
ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn,
const unsigned char **out, unsigned int *outlen, void *arg)
{
-#if (NGX_HTTP_V2 || NGX_DEBUG)
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY || NGX_DEBUG)
ngx_connection_t *c;
c = ngx_ssl_get_connection(ssl_conn);
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "SSL NPN advertised");
#endif
-#if (NGX_HTTP_V2)
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY)
{
ngx_http_connection_t *hc;
hc = c->data;
+#endif
+#if (NGX_HTTP_V2 && NGX_HTTP_SPDY)
+ if (hc->addr_conf->http2 && hc->addr_conf->spdy) {
+ *out = (unsigned char *) NGX_HTTP_V2_NPN_ADVERTISE
+ NGX_SPDY_NPN_ADVERTISE
+ NGX_HTTP_NPN_ADVERTISE;
+ *outlen = sizeof(NGX_HTTP_V2_NPN_ADVERTISE NGX_SPDY_NPN_ADVERTISE
+ NGX_HTTP_NPN_ADVERTISE) - 1;
+
+ return SSL_TLSEXT_ERR_OK;
+ } else
+#endif
+#if (NGX_HTTP_V2)
if (hc->addr_conf->http2) {
*out =
(unsigned char *) NGX_HTTP_V2_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
@@ -400,6 +431,20 @@ ngx_http_ssl_npn_advertised(ngx_ssl_conn_t *ssl_conn,
return SSL_TLSEXT_ERR_OK;
}
+#endif
+#if (NGX_HTTP_V2 && NGX_HTTP_SPDY)
+ else
+#endif
+#if (NGX_HTTP_SPDY)
+ if (hc->addr_conf->spdy) {
+ *out = (unsigned char *) NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
+ *outlen = sizeof(NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
+
+ return SSL_TLSEXT_ERR_OK;
+ }
+#endif
+
+#if (NGX_HTTP_V2 || NGX_HTTP_SPDY)
}
#endif
diff --git a/src/http/ngx_http.c b/src/http/ngx_http.c
index 0ceb613..8a0e98f 100644
--- a/src/http/ngx_http.c
+++ b/src/http/ngx_http.c
@@ -1229,6 +1229,9 @@ ngx_http_add_addresses(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
#if (NGX_HTTP_V2)
ngx_uint_t http2;
#endif
+#if (NGX_HTTP_SPDY)
+ ngx_uint_t spdy;
+#endif
/*
* we cannot compare whole sockaddr struct's as kernel
@@ -1286,6 +1289,9 @@ ngx_http_add_addresses(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
#if (NGX_HTTP_V2)
http2 = lsopt->http2 || addr[i].opt.http2;
#endif
+#if (NGX_HTTP_SPDY)
+ spdy = lsopt->spdy || addr[i].opt.spdy;
+#endif
if (lsopt->set) {
@@ -1320,6 +1326,9 @@ ngx_http_add_addresses(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
#if (NGX_HTTP_V2)
addr[i].opt.http2 = http2;
#endif
+#if (NGX_HTTP_SPDY)
+ addr[i].opt.spdy = spdy;
+#endif
return NGX_OK;
}
@@ -1363,6 +1372,18 @@ ngx_http_add_address(ngx_conf_t *cf, ngx_http_core_srv_conf_t *cscf,
#endif
+#if (NGX_HTTP_SPDY && NGX_HTTP_SSL \
+ && !defined TLSEXT_TYPE_application_layer_protocol_negotiation \
+ && !defined TLSEXT_TYPE_next_proto_neg)
+ if (lsopt->spdy && lsopt->ssl) {
+ ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
+ "nginx was built with OpenSSL that lacks ALPN "
+ "and NPN support, SPDY is not enabled for %s",
+ lsopt->addr);
+ }
+
+#endif
+
addr = ngx_array_push(&port->addrs);
if (addr == NULL) {
return NGX_ERROR;
@@ -1855,6 +1876,9 @@ ngx_http_add_addrs(ngx_conf_t *cf, ngx_http_port_t *hport,
#if (NGX_HTTP_V2)
addrs[i].conf.http2 = addr[i].opt.http2;
#endif
+#if (NGX_HTTP_SPDY)
+ addrs[i].conf.spdy = addr[i].opt.spdy;
+#endif
addrs[i].conf.proxy_protocol = addr[i].opt.proxy_protocol;
if (addr[i].hash.buckets == NULL
@@ -1920,6 +1944,9 @@ ngx_http_add_addrs6(ngx_conf_t *cf, ngx_http_port_t *hport,
#if (NGX_HTTP_V2)
addrs6[i].conf.http2 = addr[i].opt.http2;
#endif
+#if (NGX_HTTP_SPDY)
+ addrs6[i].conf.spdy = addr[i].opt.spdy;
+#endif
addrs6[i].conf.proxy_protocol = addr[i].opt.proxy_protocol;
if (addr[i].hash.buckets == NULL
diff --git a/src/http/ngx_http.h b/src/http/ngx_http.h
index 19cb680..7d443c1 100644
--- a/src/http/ngx_http.h
+++ b/src/http/ngx_http.h
@@ -19,6 +19,9 @@
typedef struct ngx_http_file_cache_s ngx_http_file_cache_t;
typedef struct ngx_http_log_ctx_s ngx_http_log_ctx_t;
typedef struct ngx_http_chunked_s ngx_http_chunked_t;
+#if (NGX_HTTP_SPDY)
+typedef struct ngx_http_spdy_stream_s ngx_http_spdy_stream_t;
+#endif
typedef struct ngx_http_v2_stream_s ngx_http_v2_stream_t;
typedef ngx_int_t (*ngx_http_header_handler_pt)(ngx_http_request_t *r,
@@ -35,9 +38,13 @@
#include <ngx_http_upstream_round_robin.h>
#include <ngx_http_core_module.h>
+
#if (NGX_HTTP_V2)
#include <ngx_http_v2.h>
#endif
+#if (NGX_HTTP_SPDY)
+#include <ngx_http_spdy.h>
+#endif
#if (NGX_HTTP_CACHE)
#include <ngx_http_cache.h>
#endif
diff --git a/src/http/ngx_http_core_module.c b/src/http/ngx_http_core_module.c
index bd36aec..6351c9f 100644
--- a/src/http/ngx_http_core_module.c
+++ b/src/http/ngx_http_core_module.c
@@ -2140,6 +2140,13 @@ ngx_http_gzip_ok(ngx_http_request_t *r)
return NGX_DECLINED;
}
+#if (NGX_HTTP_SPDY)
+ if (r->spdy_stream) {
+ r->gzip_ok = 1;
+ return NGX_OK;
+ }
+#endif
+
ae = r->headers_in.accept_encoding;
if (ae == NULL) {
return NGX_DECLINED;
@@ -2484,6 +2491,9 @@ ngx_http_subrequest(ngx_http_request_t *r,
#if (NGX_HTTP_V2)
sr->stream = r->stream;
#endif
+#if (NGX_HTTP_SPDY)
+ sr->spdy_stream = r->spdy_stream;
+#endif
sr->method = NGX_HTTP_GET;
sr->http_version = r->http_version;
@@ -4219,11 +4229,15 @@ ngx_http_core_listen(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
}
if (ngx_strcmp(value[n].data, "spdy") == 0) {
- ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
- "invalid parameter \"spdy\": "
- "ngx_http_spdy_module was superseded "
- "by ngx_http_v2_module");
+#if (NGX_HTTP_SPDY)
+ lsopt.spdy = 1;
continue;
+#else
+ ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+ "the \"spdy\" parameter requires "
+ "ngx_http_spdy_module");
+ return NGX_CONF_ERROR;
+#endif
}
if (ngx_strncmp(value[n].data, "so_keepalive=", 13) == 0) {
diff --git a/src/http/ngx_http_core_module.h b/src/http/ngx_http_core_module.h
index 6c446a0..434d33e 100644
--- a/src/http/ngx_http_core_module.h
+++ b/src/http/ngx_http_core_module.h
@@ -69,6 +69,9 @@
unsigned wildcard:1;
unsigned ssl:1;
unsigned http2:1;
+#if (NGX_HTTP_SPDY)
+ unsigned spdy:1;
+#endif
#if (NGX_HAVE_INET6)
unsigned ipv6only:1;
#endif
@@ -230,6 +233,9 @@
unsigned ssl:1;
unsigned http2:1;
+#if (NGX_HTTP_SPDY)
+ unsigned spdy:1;
+#endif
unsigned proxy_protocol:1;
};
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 7d6cada..90c14b9 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -312,6 +312,11 @@ ngx_http_init_connection(ngx_connection_t *c)
rev->handler = ngx_http_wait_request_handler;
c->write->handler = ngx_http_empty_handler;
+#if (NGX_HTTP_SPDY)
+ if (hc->addr_conf->spdy) {
+ rev->handler = ngx_http_spdy_init;
+ }
+#endif
#if (NGX_HTTP_V2)
if (hc->addr_conf->http2) {
rev->handler = ngx_http_v2_init;
@@ -797,6 +802,34 @@ ngx_http_ssl_handshake_handler(ngx_connection_t *c)
}
#endif
+#if (NGX_HTTP_SPDY \
+ && (defined TLSEXT_TYPE_application_layer_protocol_negotiation \
+ || defined TLSEXT_TYPE_next_proto_neg))
+ {
+ unsigned int len;
+ const unsigned char *data;
+ static const ngx_str_t spdy = ngx_string(NGX_SPDY_NPN_NEGOTIATED);
+
+#ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
+ SSL_get0_alpn_selected(c->ssl->connection, &data, &len);
+
+#ifdef TLSEXT_TYPE_next_proto_neg
+ if (len == 0) {
+ SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len);
+ }
+#endif
+
+#else /* TLSEXT_TYPE_next_proto_neg */
+ SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len);
+#endif
+
+ if (len == spdy.len && ngx_strncmp(data, spdy.data, spdy.len) == 0) {
+ ngx_http_spdy_init(c->read);
+ return;
+ }
+ }
+#endif
+
c->log->action = "waiting for request";
c->read->handler = ngx_http_wait_request_handler;
@@ -2513,6 +2546,12 @@ ngx_http_finalize_connection(ngx_http_request_t *r)
return;
}
#endif
+#if (NGX_HTTP_SPDY)
+ if (r->spdy_stream) {
+ ngx_http_close_request(r, 0);
+ return;
+ }
+#endif
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
@@ -2732,6 +2771,18 @@ ngx_http_test_reading(ngx_http_request_t *r)
}
#endif
+#if (NGX_HTTP_SPDY)
+
+ if (r->spdy_stream) {
+ if (c->error) {
+ err = 0;
+ goto closed;
+ }
+
+ return;
+ }
+
+#endif
#if (NGX_HAVE_KQUEUE)
@@ -3401,6 +3452,12 @@ ngx_http_close_request(ngx_http_request_t *r, ngx_int_t rc)
return;
}
#endif
+#if (NGX_HTTP_SPDY)
+ if (r->spdy_stream) {
+ ngx_http_spdy_close_stream(r->spdy_stream, rc);
+ return;
+ }
+#endif
ngx_http_free_request(r, rc);
ngx_http_close_connection(c);
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h
index cfde7dc..c7412be 100644
--- a/src/http/ngx_http_request.h
+++ b/src/http/ngx_http_request.h
@@ -439,6 +439,9 @@ struct ngx_http_request_s {
#if (NGX_HTTP_V2)
ngx_http_v2_stream_t *stream;
#endif
+#if (NGX_HTTP_SPDY)
+ ngx_http_spdy_stream_t *spdy_stream;
+#endif
ngx_http_log_handler_pt log_handler;
diff --git a/src/http/ngx_http_request_body.c b/src/http/ngx_http_request_body.c
index 0641329..a40507d 100644
--- a/src/http/ngx_http_request_body.c
+++ b/src/http/ngx_http_request_body.c
@@ -52,6 +52,12 @@ ngx_http_read_client_request_body(ngx_http_request_t *r,
goto done;
}
#endif
+#if (NGX_HTTP_SPDY)
+ if (r->spdy_stream) {
+ rc = ngx_http_spdy_read_request_body(r, post_handler);
+ goto done;
+ }
+#endif
if (ngx_http_test_expect(r) != NGX_OK) {
rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
@@ -524,6 +530,12 @@ ngx_http_discard_request_body(ngx_http_request_t *r)
return NGX_OK;
}
#endif
+#if (NGX_HTTP_SPDY)
+ if (r->spdy_stream) {
+ r->spdy_stream->skip_data = 1;
+ return NGX_OK;
+ }
+#endif
if (ngx_http_test_expect(r) != NGX_OK) {
return NGX_HTTP_INTERNAL_SERVER_ERROR;
diff --git a/src/http/ngx_http_spdy.c b/src/http/ngx_http_spdy.c
new file mode 100644
index 0000000..21c5217
--- /dev/null
+++ b/src/http/ngx_http_spdy.c
@@ -0,0 +1,3701 @@
+
+/*
+ * Copyright (C) Nginx, Inc.
+ * Copyright (C) Valentin V. Bartenev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+#include <ngx_http_spdy_module.h>
+
+#include <zlib.h>
+
+
+#if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED)
+
+#define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
+ *(uint32_t *) m == (c3 << 24 | c2 << 16 | c1 << 8 | c0) \
+ && m[4] == c4
+
+#else
+
+#define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
+ m[0] == c0 && m[1] == c1 && m[2] == c2 && m[3] == c3 && m[4] == c4
+
+#endif
+
+
+#if (NGX_HAVE_NONALIGNED)
+
+#define ngx_spdy_frame_parse_uint16(p) ntohs(*(uint16_t *) (p))
+#define ngx_spdy_frame_parse_uint32(p) ntohl(*(uint32_t *) (p))
+
+#else
+
+#define ngx_spdy_frame_parse_uint16(p) ((p)[0] << 8 | (p)[1])
+#define ngx_spdy_frame_parse_uint32(p) \
+ ((p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3])
+
+#endif
+
+#define ngx_spdy_frame_parse_sid(p) \
+ (ngx_spdy_frame_parse_uint32(p) & 0x7fffffff)
+#define ngx_spdy_frame_parse_delta(p) \
+ (ngx_spdy_frame_parse_uint32(p) & 0x7fffffff)
+
+
+#define ngx_spdy_ctl_frame_check(h) \
+ (((h) & 0xffff0000) == ngx_spdy_ctl_frame_head(0))
+#define ngx_spdy_data_frame_check(h) \
+ (!((h) & (uint32_t) NGX_SPDY_CTL_BIT << 31))
+
+#define ngx_spdy_ctl_frame_type(h) ((h) & 0x0000ffff)
+#define ngx_spdy_frame_flags(p) ((p) >> 24)
+#define ngx_spdy_frame_length(p) ((p) & 0x00ffffff)
+#define ngx_spdy_frame_id(p) ((p) & 0x00ffffff)
+
+
+#define NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE 4096
+#define NGX_SPDY_CTL_FRAME_BUFFER_SIZE 16
+
+#define NGX_SPDY_PROTOCOL_ERROR 1
+#define NGX_SPDY_INVALID_STREAM 2
+#define NGX_SPDY_REFUSED_STREAM 3
+#define NGX_SPDY_UNSUPPORTED_VERSION 4
+#define NGX_SPDY_CANCEL 5
+#define NGX_SPDY_INTERNAL_ERROR 6
+#define NGX_SPDY_FLOW_CONTROL_ERROR 7
+#define NGX_SPDY_STREAM_IN_USE 8
+#define NGX_SPDY_STREAM_ALREADY_CLOSED 9
+/* deprecated 10 */
+#define NGX_SPDY_FRAME_TOO_LARGE 11
+
+#define NGX_SPDY_SETTINGS_MAX_STREAMS 4
+#define NGX_SPDY_SETTINGS_INIT_WINDOW 7
+
+#define NGX_SPDY_SETTINGS_FLAG_PERSIST 0x01
+#define NGX_SPDY_SETTINGS_FLAG_PERSISTED 0x02
+
+#define NGX_SPDY_MAX_WINDOW NGX_MAX_INT32_VALUE
+#define NGX_SPDY_CONNECTION_WINDOW 65536
+#define NGX_SPDY_INIT_STREAM_WINDOW 65536
+#define NGX_SPDY_STREAM_WINDOW NGX_SPDY_MAX_WINDOW
+
+typedef struct {
+ ngx_uint_t hash;
+ u_char len;
+ u_char header[7];
+ ngx_int_t (*handler)(ngx_http_request_t *r);
+} ngx_http_spdy_request_header_t;
+
+
+static void ngx_http_spdy_read_handler(ngx_event_t *rev);
+static void ngx_http_spdy_write_handler(ngx_event_t *wev);
+static void ngx_http_spdy_handle_connection(ngx_http_spdy_connection_t *sc);
+
+static u_char *ngx_http_spdy_proxy_protocol(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_head(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_syn_stream(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers_skip(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers_error(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_window_update(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_data(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_read_data(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_rst_stream(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_ping(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_skip(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_settings(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_complete(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_save(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end, ngx_http_spdy_handler_pt handler);
+
+static u_char *ngx_http_spdy_state_inflate_error(
+ ngx_http_spdy_connection_t *sc, int rc);
+static u_char *ngx_http_spdy_state_protocol_error(
+ ngx_http_spdy_connection_t *sc);
+static u_char *ngx_http_spdy_state_internal_error(
+ ngx_http_spdy_connection_t *sc);
+
+static ngx_int_t ngx_http_spdy_send_window_update(
+ ngx_http_spdy_connection_t *sc, ngx_uint_t sid, ngx_uint_t delta);
+static ngx_int_t ngx_http_spdy_send_rst_stream(ngx_http_spdy_connection_t *sc,
+ ngx_uint_t sid, ngx_uint_t status, ngx_uint_t priority);
+static ngx_int_t ngx_http_spdy_send_settings(ngx_http_spdy_connection_t *sc);
+static ngx_int_t ngx_http_spdy_settings_frame_handler(
+ ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
+static ngx_http_spdy_out_frame_t *ngx_http_spdy_get_ctl_frame(
+ ngx_http_spdy_connection_t *sc, size_t size, ngx_uint_t priority);
+static ngx_int_t ngx_http_spdy_ctl_frame_handler(
+ ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
+
+static ngx_http_spdy_stream_t *ngx_http_spdy_create_stream(
+ ngx_http_spdy_connection_t *sc, ngx_uint_t id, ngx_uint_t priority);
+static ngx_http_spdy_stream_t *ngx_http_spdy_get_stream_by_id(
+ ngx_http_spdy_connection_t *sc, ngx_uint_t sid);
+#define ngx_http_spdy_streams_index_size(sscf) (sscf->streams_index_mask + 1)
+#define ngx_http_spdy_stream_index(sscf, sid) \
+ ((sid >> 1) & sscf->streams_index_mask)
+
+static ngx_int_t ngx_http_spdy_parse_header(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_alloc_large_header_buffer(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_spdy_handle_request_header(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_method(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_scheme(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_host(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_path(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_version(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_spdy_construct_request_line(ngx_http_request_t *r);
+static void ngx_http_spdy_run_request(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_init_request_body(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_spdy_terminate_stream(ngx_http_spdy_connection_t *sc,
+ ngx_http_spdy_stream_t *stream, ngx_uint_t status);
+
+static void ngx_http_spdy_close_stream_handler(ngx_event_t *ev);
+
+static void ngx_http_spdy_handle_connection_handler(ngx_event_t *rev);
+static void ngx_http_spdy_keepalive_handler(ngx_event_t *rev);
+static void ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
+ ngx_int_t rc);
+
+static ngx_int_t ngx_http_spdy_adjust_windows(ngx_http_spdy_connection_t *sc,
+ ssize_t delta);
+
+static void ngx_http_spdy_pool_cleanup(void *data);
+
+static void *ngx_http_spdy_zalloc(void *opaque, u_int items, u_int size);
+static void ngx_http_spdy_zfree(void *opaque, void *address);
+
+
+static const u_char ngx_http_spdy_dict[] = {
+ 0x00, 0x00, 0x00, 0x07, 0x6f, 0x70, 0x74, 0x69, /* - - - - o p t i */
+ 0x6f, 0x6e, 0x73, 0x00, 0x00, 0x00, 0x04, 0x68, /* o n s - - - - h */
+ 0x65, 0x61, 0x64, 0x00, 0x00, 0x00, 0x04, 0x70, /* e a d - - - - p */
+ 0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x03, 0x70, /* o s t - - - - p */
+ 0x75, 0x74, 0x00, 0x00, 0x00, 0x06, 0x64, 0x65, /* u t - - - - d e */
+ 0x6c, 0x65, 0x74, 0x65, 0x00, 0x00, 0x00, 0x05, /* l e t e - - - - */
+ 0x74, 0x72, 0x61, 0x63, 0x65, 0x00, 0x00, 0x00, /* t r a c e - - - */
+ 0x06, 0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x00, /* - a c c e p t - */
+ 0x00, 0x00, 0x0e, 0x61, 0x63, 0x63, 0x65, 0x70, /* - - - a c c e p */
+ 0x74, 0x2d, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, /* t - c h a r s e */
+ 0x74, 0x00, 0x00, 0x00, 0x0f, 0x61, 0x63, 0x63, /* t - - - - a c c */
+ 0x65, 0x70, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, /* e p t - e n c o */
+ 0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x0f, /* d i n g - - - - */
+ 0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x2d, 0x6c, /* a c c e p t - l */
+ 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x00, /* a n g u a g e - */
+ 0x00, 0x00, 0x0d, 0x61, 0x63, 0x63, 0x65, 0x70, /* - - - a c c e p */
+ 0x74, 0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x73, /* t - r a n g e s */
+ 0x00, 0x00, 0x00, 0x03, 0x61, 0x67, 0x65, 0x00, /* - - - - a g e - */
+ 0x00, 0x00, 0x05, 0x61, 0x6c, 0x6c, 0x6f, 0x77, /* - - - a l l o w */
+ 0x00, 0x00, 0x00, 0x0d, 0x61, 0x75, 0x74, 0x68, /* - - - - a u t h */
+ 0x6f, 0x72, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, /* o r i z a t i o */
+ 0x6e, 0x00, 0x00, 0x00, 0x0d, 0x63, 0x61, 0x63, /* n - - - - c a c */
+ 0x68, 0x65, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, /* h e - c o n t r */
+ 0x6f, 0x6c, 0x00, 0x00, 0x00, 0x0a, 0x63, 0x6f, /* o l - - - - c o */
+ 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, /* n n e c t i o n */
+ 0x00, 0x00, 0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, /* - - - - c o n t */
+ 0x65, 0x6e, 0x74, 0x2d, 0x62, 0x61, 0x73, 0x65, /* e n t - b a s e */
+ 0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, 0x6e, 0x74, /* - - - - c o n t */
+ 0x65, 0x6e, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, /* e n t - e n c o */
+ 0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, /* d i n g - - - - */
+ 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, /* c o n t e n t - */
+ 0x6c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, /* l a n g u a g e */
+ 0x00, 0x00, 0x00, 0x0e, 0x63, 0x6f, 0x6e, 0x74, /* - - - - c o n t */
+ 0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x65, 0x6e, 0x67, /* e n t - l e n g */
+ 0x74, 0x68, 0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, /* t h - - - - c o */
+ 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x6f, /* n t e n t - l o */
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, /* c a t i o n - - */
+ 0x00, 0x0b, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, /* - - c o n t e n */
+ 0x74, 0x2d, 0x6d, 0x64, 0x35, 0x00, 0x00, 0x00, /* t - m d 5 - - - */
+ 0x0d, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, /* - c o n t e n t */
+ 0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, /* - r a n g e - - */
+ 0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, /* - - c o n t e n */
+ 0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x00, 0x00, /* t - t y p e - - */
+ 0x00, 0x04, 0x64, 0x61, 0x74, 0x65, 0x00, 0x00, /* - - d a t e - - */
+ 0x00, 0x04, 0x65, 0x74, 0x61, 0x67, 0x00, 0x00, /* - - e t a g - - */
+ 0x00, 0x06, 0x65, 0x78, 0x70, 0x65, 0x63, 0x74, /* - - e x p e c t */
+ 0x00, 0x00, 0x00, 0x07, 0x65, 0x78, 0x70, 0x69, /* - - - - e x p i */
+ 0x72, 0x65, 0x73, 0x00, 0x00, 0x00, 0x04, 0x66, /* r e s - - - - f */
+ 0x72, 0x6f, 0x6d, 0x00, 0x00, 0x00, 0x04, 0x68, /* r o m - - - - h */
+ 0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x08, 0x69, /* o s t - - - - i */
+ 0x66, 0x2d, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, /* f - m a t c h - */
+ 0x00, 0x00, 0x11, 0x69, 0x66, 0x2d, 0x6d, 0x6f, /* - - - i f - m o */
+ 0x64, 0x69, 0x66, 0x69, 0x65, 0x64, 0x2d, 0x73, /* d i f i e d - s */
+ 0x69, 0x6e, 0x63, 0x65, 0x00, 0x00, 0x00, 0x0d, /* i n c e - - - - */
+ 0x69, 0x66, 0x2d, 0x6e, 0x6f, 0x6e, 0x65, 0x2d, /* i f - n o n e - */
+ 0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, 0x00, 0x00, /* m a t c h - - - */
+ 0x08, 0x69, 0x66, 0x2d, 0x72, 0x61, 0x6e, 0x67, /* - i f - r a n g */
+ 0x65, 0x00, 0x00, 0x00, 0x13, 0x69, 0x66, 0x2d, /* e - - - - i f - */
+ 0x75, 0x6e, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, /* u n m o d i f i */
+ 0x65, 0x64, 0x2d, 0x73, 0x69, 0x6e, 0x63, 0x65, /* e d - s i n c e */
+ 0x00, 0x00, 0x00, 0x0d, 0x6c, 0x61, 0x73, 0x74, /* - - - - l a s t */
+ 0x2d, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, /* - m o d i f i e */
+ 0x64, 0x00, 0x00, 0x00, 0x08, 0x6c, 0x6f, 0x63, /* d - - - - l o c */
+ 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, /* a t i o n - - - */
+ 0x0c, 0x6d, 0x61, 0x78, 0x2d, 0x66, 0x6f, 0x72, /* - m a x - f o r */
+ 0x77, 0x61, 0x72, 0x64, 0x73, 0x00, 0x00, 0x00, /* w a r d s - - - */
+ 0x06, 0x70, 0x72, 0x61, 0x67, 0x6d, 0x61, 0x00, /* - p r a g m a - */
+ 0x00, 0x00, 0x12, 0x70, 0x72, 0x6f, 0x78, 0x79, /* - - - p r o x y */
+ 0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, 0x74, /* - a u t h e n t */
+ 0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, 0x00, /* i c a t e - - - */
+ 0x13, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2d, 0x61, /* - p r o x y - a */
+ 0x75, 0x74, 0x68, 0x6f, 0x72, 0x69, 0x7a, 0x61, /* u t h o r i z a */
+ 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x05, /* t i o n - - - - */
+ 0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, 0x00, /* r a n g e - - - */
+ 0x07, 0x72, 0x65, 0x66, 0x65, 0x72, 0x65, 0x72, /* - r e f e r e r */
+ 0x00, 0x00, 0x00, 0x0b, 0x72, 0x65, 0x74, 0x72, /* - - - - r e t r */
+ 0x79, 0x2d, 0x61, 0x66, 0x74, 0x65, 0x72, 0x00, /* y - a f t e r - */
+ 0x00, 0x00, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, /* - - - s e r v e */
+ 0x72, 0x00, 0x00, 0x00, 0x02, 0x74, 0x65, 0x00, /* r - - - - t e - */
+ 0x00, 0x00, 0x07, 0x74, 0x72, 0x61, 0x69, 0x6c, /* - - - t r a i l */
+ 0x65, 0x72, 0x00, 0x00, 0x00, 0x11, 0x74, 0x72, /* e r - - - - t r */
+ 0x61, 0x6e, 0x73, 0x66, 0x65, 0x72, 0x2d, 0x65, /* a n s f e r - e */
+ 0x6e, 0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x00, /* n c o d i n g - */
+ 0x00, 0x00, 0x07, 0x75, 0x70, 0x67, 0x72, 0x61, /* - - - u p g r a */
+ 0x64, 0x65, 0x00, 0x00, 0x00, 0x0a, 0x75, 0x73, /* d e - - - - u s */
+ 0x65, 0x72, 0x2d, 0x61, 0x67, 0x65, 0x6e, 0x74, /* e r - a g e n t */
+ 0x00, 0x00, 0x00, 0x04, 0x76, 0x61, 0x72, 0x79, /* - - - - v a r y */
+ 0x00, 0x00, 0x00, 0x03, 0x76, 0x69, 0x61, 0x00, /* - - - - v i a - */
+ 0x00, 0x00, 0x07, 0x77, 0x61, 0x72, 0x6e, 0x69, /* - - - w a r n i */
+ 0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, 0x77, 0x77, /* n g - - - - w w */
+ 0x77, 0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, /* w - a u t h e n */
+ 0x74, 0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, /* t i c a t e - - */
+ 0x00, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, /* - - m e t h o d */
+ 0x00, 0x00, 0x00, 0x03, 0x67, 0x65, 0x74, 0x00, /* - - - - g e t - */
+ 0x00, 0x00, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, /* - - - s t a t u */
+ 0x73, 0x00, 0x00, 0x00, 0x06, 0x32, 0x30, 0x30, /* s - - - - 2 0 0 */
+ 0x20, 0x4f, 0x4b, 0x00, 0x00, 0x00, 0x07, 0x76, /* - O K - - - - v */
+ 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x00, 0x00, /* e r s i o n - - */
+ 0x00, 0x08, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, /* - - H T T P - 1 */
+ 0x2e, 0x31, 0x00, 0x00, 0x00, 0x03, 0x75, 0x72, /* - 1 - - - - u r */
+ 0x6c, 0x00, 0x00, 0x00, 0x06, 0x70, 0x75, 0x62, /* l - - - - p u b */
+ 0x6c, 0x69, 0x63, 0x00, 0x00, 0x00, 0x0a, 0x73, /* l i c - - - - s */
+ 0x65, 0x74, 0x2d, 0x63, 0x6f, 0x6f, 0x6b, 0x69, /* e t - c o o k i */
+ 0x65, 0x00, 0x00, 0x00, 0x0a, 0x6b, 0x65, 0x65, /* e - - - - k e e */
+ 0x70, 0x2d, 0x61, 0x6c, 0x69, 0x76, 0x65, 0x00, /* p - a l i v e - */
+ 0x00, 0x00, 0x06, 0x6f, 0x72, 0x69, 0x67, 0x69, /* - - - o r i g i */
+ 0x6e, 0x31, 0x30, 0x30, 0x31, 0x30, 0x31, 0x32, /* n 1 0 0 1 0 1 2 */
+ 0x30, 0x31, 0x32, 0x30, 0x32, 0x32, 0x30, 0x35, /* 0 1 2 0 2 2 0 5 */
+ 0x32, 0x30, 0x36, 0x33, 0x30, 0x30, 0x33, 0x30, /* 2 0 6 3 0 0 3 0 */
+ 0x32, 0x33, 0x30, 0x33, 0x33, 0x30, 0x34, 0x33, /* 2 3 0 3 3 0 4 3 */
+ 0x30, 0x35, 0x33, 0x30, 0x36, 0x33, 0x30, 0x37, /* 0 5 3 0 6 3 0 7 */
+ 0x34, 0x30, 0x32, 0x34, 0x30, 0x35, 0x34, 0x30, /* 4 0 2 4 0 5 4 0 */
+ 0x36, 0x34, 0x30, 0x37, 0x34, 0x30, 0x38, 0x34, /* 6 4 0 7 4 0 8 4 */
+ 0x30, 0x39, 0x34, 0x31, 0x30, 0x34, 0x31, 0x31, /* 0 9 4 1 0 4 1 1 */
+ 0x34, 0x31, 0x32, 0x34, 0x31, 0x33, 0x34, 0x31, /* 4 1 2 4 1 3 4 1 */
+ 0x34, 0x34, 0x31, 0x35, 0x34, 0x31, 0x36, 0x34, /* 4 4 1 5 4 1 6 4 */
+ 0x31, 0x37, 0x35, 0x30, 0x32, 0x35, 0x30, 0x34, /* 1 7 5 0 2 5 0 4 */
+ 0x35, 0x30, 0x35, 0x32, 0x30, 0x33, 0x20, 0x4e, /* 5 0 5 2 0 3 - N */
+ 0x6f, 0x6e, 0x2d, 0x41, 0x75, 0x74, 0x68, 0x6f, /* o n - A u t h o */
+ 0x72, 0x69, 0x74, 0x61, 0x74, 0x69, 0x76, 0x65, /* r i t a t i v e */
+ 0x20, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, /* - I n f o r m a */
+ 0x74, 0x69, 0x6f, 0x6e, 0x32, 0x30, 0x34, 0x20, /* t i o n 2 0 4 - */
+ 0x4e, 0x6f, 0x20, 0x43, 0x6f, 0x6e, 0x74, 0x65, /* N o - C o n t e */
+ 0x6e, 0x74, 0x33, 0x30, 0x31, 0x20, 0x4d, 0x6f, /* n t 3 0 1 - M o */
+ 0x76, 0x65, 0x64, 0x20, 0x50, 0x65, 0x72, 0x6d, /* v e d - P e r m */
+ 0x61, 0x6e, 0x65, 0x6e, 0x74, 0x6c, 0x79, 0x34, /* a n e n t l y 4 */
+ 0x30, 0x30, 0x20, 0x42, 0x61, 0x64, 0x20, 0x52, /* 0 0 - B a d - R */
+ 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x34, 0x30, /* e q u e s t 4 0 */
+ 0x31, 0x20, 0x55, 0x6e, 0x61, 0x75, 0x74, 0x68, /* 1 - U n a u t h */
+ 0x6f, 0x72, 0x69, 0x7a, 0x65, 0x64, 0x34, 0x30, /* o r i z e d 4 0 */
+ 0x33, 0x20, 0x46, 0x6f, 0x72, 0x62, 0x69, 0x64, /* 3 - F o r b i d */
+ 0x64, 0x65, 0x6e, 0x34, 0x30, 0x34, 0x20, 0x4e, /* d e n 4 0 4 - N */
+ 0x6f, 0x74, 0x20, 0x46, 0x6f, 0x75, 0x6e, 0x64, /* o t - F o u n d */
+ 0x35, 0x30, 0x30, 0x20, 0x49, 0x6e, 0x74, 0x65, /* 5 0 0 - I n t e */
+ 0x72, 0x6e, 0x61, 0x6c, 0x20, 0x53, 0x65, 0x72, /* r n a l - S e r */
+ 0x76, 0x65, 0x72, 0x20, 0x45, 0x72, 0x72, 0x6f, /* v e r - E r r o */
+ 0x72, 0x35, 0x30, 0x31, 0x20, 0x4e, 0x6f, 0x74, /* r 5 0 1 - N o t */
+ 0x20, 0x49, 0x6d, 0x70, 0x6c, 0x65, 0x6d, 0x65, /* - I m p l e m e */
+ 0x6e, 0x74, 0x65, 0x64, 0x35, 0x30, 0x33, 0x20, /* n t e d 5 0 3 - */
+ 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x20, /* S e r v i c e - */
+ 0x55, 0x6e, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, /* U n a v a i l a */
+ 0x62, 0x6c, 0x65, 0x4a, 0x61, 0x6e, 0x20, 0x46, /* b l e J a n - F */
+ 0x65, 0x62, 0x20, 0x4d, 0x61, 0x72, 0x20, 0x41, /* e b - M a r - A */
+ 0x70, 0x72, 0x20, 0x4d, 0x61, 0x79, 0x20, 0x4a, /* p r - M a y - J */
+ 0x75, 0x6e, 0x20, 0x4a, 0x75, 0x6c, 0x20, 0x41, /* u n - J u l - A */
+ 0x75, 0x67, 0x20, 0x53, 0x65, 0x70, 0x74, 0x20, /* u g - S e p t - */
+ 0x4f, 0x63, 0x74, 0x20, 0x4e, 0x6f, 0x76, 0x20, /* O c t - N o v - */
+ 0x44, 0x65, 0x63, 0x20, 0x30, 0x30, 0x3a, 0x30, /* D e c - 0 0 - 0 */
+ 0x30, 0x3a, 0x30, 0x30, 0x20, 0x4d, 0x6f, 0x6e, /* 0 - 0 0 - M o n */
+ 0x2c, 0x20, 0x54, 0x75, 0x65, 0x2c, 0x20, 0x57, /* - - T u e - - W */
+ 0x65, 0x64, 0x2c, 0x20, 0x54, 0x68, 0x75, 0x2c, /* e d - - T h u - */
+ 0x20, 0x46, 0x72, 0x69, 0x2c, 0x20, 0x53, 0x61, /* - F r i - - S a */
+ 0x74, 0x2c, 0x20, 0x53, 0x75, 0x6e, 0x2c, 0x20, /* t - - S u n - - */
+ 0x47, 0x4d, 0x54, 0x63, 0x68, 0x75, 0x6e, 0x6b, /* G M T c h u n k */
+ 0x65, 0x64, 0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, /* e d - t e x t - */
+ 0x68, 0x74, 0x6d, 0x6c, 0x2c, 0x69, 0x6d, 0x61, /* h t m l - i m a */
+ 0x67, 0x65, 0x2f, 0x70, 0x6e, 0x67, 0x2c, 0x69, /* g e - p n g - i */
+ 0x6d, 0x61, 0x67, 0x65, 0x2f, 0x6a, 0x70, 0x67, /* m a g e - j p g */
+ 0x2c, 0x69, 0x6d, 0x61, 0x67, 0x65, 0x2f, 0x67, /* - i m a g e - g */
+ 0x69, 0x66, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, /* i f - a p p l i */
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, /* c a t i o n - x */
+ 0x6d, 0x6c, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, /* m l - a p p l i */
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, /* c a t i o n - x */
+ 0x68, 0x74, 0x6d, 0x6c, 0x2b, 0x78, 0x6d, 0x6c, /* h t m l - x m l */
+ 0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, 0x70, 0x6c, /* - t e x t - p l */
+ 0x61, 0x69, 0x6e, 0x2c, 0x74, 0x65, 0x78, 0x74, /* a i n - t e x t */
+ 0x2f, 0x6a, 0x61, 0x76, 0x61, 0x73, 0x63, 0x72, /* - j a v a s c r */
+ 0x69, 0x70, 0x74, 0x2c, 0x70, 0x75, 0x62, 0x6c, /* i p t - p u b l */
+ 0x69, 0x63, 0x70, 0x72, 0x69, 0x76, 0x61, 0x74, /* i c p r i v a t */
+ 0x65, 0x6d, 0x61, 0x78, 0x2d, 0x61, 0x67, 0x65, /* e m a x - a g e */
+ 0x3d, 0x67, 0x7a, 0x69, 0x70, 0x2c, 0x64, 0x65, /* - g z i p - d e */
+ 0x66, 0x6c, 0x61, 0x74, 0x65, 0x2c, 0x73, 0x64, /* f l a t e - s d */
+ 0x63, 0x68, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, /* c h c h a r s e */
+ 0x74, 0x3d, 0x75, 0x74, 0x66, 0x2d, 0x38, 0x63, /* t - u t f - 8 c */
+ 0x68, 0x61, 0x72, 0x73, 0x65, 0x74, 0x3d, 0x69, /* h a r s e t - i */
+ 0x73, 0x6f, 0x2d, 0x38, 0x38, 0x35, 0x39, 0x2d, /* s o - 8 8 5 9 - */
+ 0x31, 0x2c, 0x75, 0x74, 0x66, 0x2d, 0x2c, 0x2a, /* 1 - u t f - - - */
+ 0x2c, 0x65, 0x6e, 0x71, 0x3d, 0x30, 0x2e /* - e n q - 0 - */
+};
+
+
+static ngx_http_spdy_request_header_t ngx_http_spdy_request_headers[] = {
+ { 0, 6, "method", ngx_http_spdy_parse_method },
+ { 0, 6, "scheme", ngx_http_spdy_parse_scheme },
+ { 0, 4, "host", ngx_http_spdy_parse_host },
+ { 0, 4, "path", ngx_http_spdy_parse_path },
+ { 0, 7, "version", ngx_http_spdy_parse_version },
+};
+
+#define NGX_SPDY_REQUEST_HEADERS \
+ (sizeof(ngx_http_spdy_request_headers) \
+ / sizeof(ngx_http_spdy_request_header_t))
+
+
+void
+ngx_http_spdy_init(ngx_event_t *rev)
+{
+ int rc;
+ ngx_connection_t *c;
+ ngx_pool_cleanup_t *cln;
+ ngx_http_connection_t *hc;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_main_conf_t *smcf;
+ ngx_http_spdy_connection_t *sc;
+
+ c = rev->data;
+ hc = c->data;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "init spdy request");
+
+ c->log->action = "processing SPDY";
+
+ smcf = ngx_http_get_module_main_conf(hc->conf_ctx, ngx_http_spdy_module);
+
+ if (smcf->recv_buffer == NULL) {
+ smcf->recv_buffer = ngx_palloc(ngx_cycle->pool, smcf->recv_buffer_size);
+ if (smcf->recv_buffer == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+ }
+
+ sc = ngx_pcalloc(c->pool, sizeof(ngx_http_spdy_connection_t));
+ if (sc == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ sc->connection = c;
+ sc->http_connection = hc;
+
+ sc->send_window = NGX_SPDY_CONNECTION_WINDOW;
+ sc->recv_window = NGX_SPDY_CONNECTION_WINDOW;
+
+ sc->init_window = NGX_SPDY_INIT_STREAM_WINDOW;
+
+ sc->handler = hc->proxy_protocol ? ngx_http_spdy_proxy_protocol
+ : ngx_http_spdy_state_head;
+
+ sc->zstream_in.zalloc = ngx_http_spdy_zalloc;
+ sc->zstream_in.zfree = ngx_http_spdy_zfree;
+ sc->zstream_in.opaque = sc;
+
+ rc = inflateInit(&sc->zstream_in);
+ if (rc != Z_OK) {