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diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
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index 55db58e..429d06a 100644
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--- a/src/http/v2/ngx_http_v2.c
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+++ b/src/http/v2/ngx_http_v2.c
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@@ -654,6 +654,7 @@ ngx_http_v2_handle_connection(ngx_http_v2_connection_t *h2c)
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502b04 |
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h2c->pool = NULL;
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h2c->free_frames = NULL;
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+ h2c->frames = 0;
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h2c->free_fake_connections = NULL;
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#if (NGX_HTTP_SSL)
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@@ -2640,7 +2641,7 @@ ngx_http_v2_get_frame(ngx_http_v2_connection_t *h2c, size_t length,
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frame->blocked = 0;
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- } else {
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+ } else if (h2c->frames < 10000) {
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pool = h2c->pool ? h2c->pool : h2c->connection->pool;
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frame = ngx_pcalloc(pool, sizeof(ngx_http_v2_out_frame_t));
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502b04 |
@@ -2664,6 +2665,15 @@ ngx_http_v2_get_frame(ngx_http_v2_connection_t *h2c, size_t length,
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frame->last = frame->first;
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frame->handler = ngx_http_v2_frame_handler;
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+
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+ h2c->frames++;
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+
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+ } else {
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+ ngx_log_error(NGX_LOG_INFO, h2c->connection->log, 0,
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+ "http2 flood detected");
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+
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+ h2c->connection->error = 1;
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+ return NULL;
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}
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502b04 |
#if (NGX_DEBUG)
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502b04 |
diff --git a/src/http/v2/ngx_http_v2.h b/src/http/v2/ngx_http_v2.h
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502b04 |
index 7d2a2ea..49398b9 100644
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502b04 |
--- a/src/http/v2/ngx_http_v2.h
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+++ b/src/http/v2/ngx_http_v2.h
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502b04 |
@@ -115,6 +115,7 @@ struct ngx_http_v2_connection_s {
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ngx_http_connection_t *http_connection;
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ngx_uint_t processing;
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+ ngx_uint_t frames;
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502b04 |
size_t send_window;
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502b04 |
size_t recv_window;
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