99 lines
3.5 KiB
Diff
99 lines
3.5 KiB
Diff
From d71a4668c6bead55805d18810d633fbb98315af9 Mon Sep 17 00:00:00 2001
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From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
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Date: Sat, 9 Mar 2024 16:48:10 +0900
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Subject: [PATCH] Add nghttp2_option_set_max_continuations
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---
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doc/Makefile.am | 1 +
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lib/includes/nghttp2/nghttp2.h | 11 +++++++++++
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lib/nghttp2_option.c | 5 +++++
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lib/nghttp2_option.h | 5 +++++
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lib/nghttp2_session.c | 4 ++++
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5 files changed, 26 insertions(+)
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diff --git a/doc/Makefile.am b/doc/Makefile.am
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index 51945e4f0b..50d57b2217 100644
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--- a/doc/Makefile.am
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+++ b/doc/Makefile.am
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@@ -73,6 +73,7 @@ APIDOCS= \
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nghttp2_option_set_peer_max_concurrent_streams.rst \
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nghttp2_option_set_server_fallback_rfc7540_priorities.rst \
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nghttp2_option_set_user_recv_extension_type.rst \
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+ nghttp2_option_set_max_continuations.rst \
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nghttp2_option_set_max_outbound_ack.rst \
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nghttp2_option_set_max_settings.rst \
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nghttp2_option_set_stream_reset_rate_limit.rst \
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diff --git a/lib/includes/nghttp2/nghttp2.h b/lib/includes/nghttp2/nghttp2.h
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index a9629c7823..92c3ccc6e4 100644
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--- a/lib/includes/nghttp2/nghttp2.h
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+++ b/lib/includes/nghttp2/nghttp2.h
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@@ -2778,6 +2778,17 @@ NGHTTP2_EXTERN void
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nghttp2_option_set_stream_reset_rate_limit(nghttp2_option *option,
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uint64_t burst, uint64_t rate);
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+/**
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+ * @function
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+ *
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+ * This function sets the maximum number of CONTINUATION frames
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+ * following an incoming HEADER frame. If more than those frames are
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+ * received, the remote endpoint is considered to be misbehaving and
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+ * session will be closed. The default value is 8.
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+ */
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+NGHTTP2_EXTERN void nghttp2_option_set_max_continuations(nghttp2_option *option,
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+ size_t val);
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+
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/**
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* @function
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*
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diff --git a/lib/nghttp2_option.c b/lib/nghttp2_option.c
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index 43d4e95229..53144b9b75 100644
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--- a/lib/nghttp2_option.c
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+++ b/lib/nghttp2_option.c
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@@ -150,3 +150,8 @@ void nghttp2_option_set_stream_reset_rate_limit(nghttp2_option *option,
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option->stream_reset_burst = burst;
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option->stream_reset_rate = rate;
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}
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+
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+void nghttp2_option_set_max_continuations(nghttp2_option *option, size_t val) {
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+ option->opt_set_mask |= NGHTTP2_OPT_MAX_CONTINUATIONS;
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+ option->max_continuations = val;
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+}
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diff --git a/lib/nghttp2_option.h b/lib/nghttp2_option.h
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index 2259e1849d..c89cb97f8b 100644
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--- a/lib/nghttp2_option.h
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+++ b/lib/nghttp2_option.h
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@@ -71,6 +71,7 @@ typedef enum {
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NGHTTP2_OPT_SERVER_FALLBACK_RFC7540_PRIORITIES = 1 << 13,
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NGHTTP2_OPT_NO_RFC9113_LEADING_AND_TRAILING_WS_VALIDATION = 1 << 14,
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NGHTTP2_OPT_STREAM_RESET_RATE_LIMIT = 1 << 15,
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+ NGHTTP2_OPT_MAX_CONTINUATIONS = 1 << 16,
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} nghttp2_option_flag;
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/**
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@@ -98,6 +99,10 @@ struct nghttp2_option {
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* NGHTTP2_OPT_MAX_SETTINGS
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*/
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size_t max_settings;
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+ /**
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+ * NGHTTP2_OPT_MAX_CONTINUATIONS
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+ */
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+ size_t max_continuations;
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/**
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* Bitwise OR of nghttp2_option_flag to determine that which fields
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* are specified.
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diff --git a/lib/nghttp2_session.c b/lib/nghttp2_session.c
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index fc4c77a3f0..004a4dffaa 100644
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--- a/lib/nghttp2_session.c
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+++ b/lib/nghttp2_session.c
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@@ -585,6 +585,10 @@ static int session_new(nghttp2_session **session_ptr,
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option->stream_reset_burst,
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option->stream_reset_rate);
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}
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+
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+ if (option->opt_set_mask & NGHTTP2_OPT_MAX_CONTINUATIONS) {
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+ (*session_ptr)->max_continuations = option->max_continuations;
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+ }
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}
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rv = nghttp2_hd_deflate_init2(&(*session_ptr)->hd_deflater,
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