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71 lines
2.2 KiB
71 lines
2.2 KiB
diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
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index 12214e1..3b7f892 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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@@ -4335,6 +4335,8 @@ ngx_http_v2_close_stream(ngx_http_v2_stream_t *stream, ngx_int_t rc)
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*/
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pool = stream->pool;
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+ h2c->frames -= stream->frames;
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+
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ngx_http_free_request(stream->request, rc);
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if (pool != h2c->state.pool) {
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diff --git a/src/http/v2/ngx_http_v2.h b/src/http/v2/ngx_http_v2.h
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index bec2216..715b7d3 100644
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--- a/src/http/v2/ngx_http_v2.h
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+++ b/src/http/v2/ngx_http_v2.h
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@@ -192,6 +192,8 @@ struct ngx_http_v2_stream_s {
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ngx_buf_t *preread;
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+ ngx_uint_t frames;
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+
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ngx_http_v2_out_frame_t *free_frames;
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ngx_chain_t *free_frame_headers;
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ngx_chain_t *free_bufs;
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diff --git a/src/http/v2/ngx_http_v2_filter_module.c b/src/http/v2/ngx_http_v2_filter_module.c
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index 029e8ec..c7ee553 100644
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--- a/src/http/v2/ngx_http_v2_filter_module.c
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+++ b/src/http/v2/ngx_http_v2_filter_module.c
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@@ -1661,22 +1661,34 @@ static ngx_http_v2_out_frame_t *
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ngx_http_v2_filter_get_data_frame(ngx_http_v2_stream_t *stream,
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size_t len, ngx_chain_t *first, ngx_chain_t *last)
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{
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- u_char flags;
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- ngx_buf_t *buf;
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- ngx_chain_t *cl;
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- ngx_http_v2_out_frame_t *frame;
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+ u_char flags;
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+ ngx_buf_t *buf;
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+ ngx_chain_t *cl;
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+ ngx_http_v2_out_frame_t *frame;
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+ ngx_http_v2_connection_t *h2c;
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frame = stream->free_frames;
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+ h2c = stream->connection;
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if (frame) {
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stream->free_frames = frame->next;
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- } else {
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+ } else if (h2c->frames < 10000) {
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frame = ngx_palloc(stream->request->pool,
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sizeof(ngx_http_v2_out_frame_t));
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if (frame == NULL) {
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return NULL;
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}
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+
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+ stream->frames++;
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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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flags = last->buf->last_buf ? NGX_HTTP_V2_END_STREAM_FLAG : 0;
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