diff --git a/include/proto/compression.h b/include/proto/compression.h
new file mode 100644
index 0000000..6f1a26a
--- /dev/null
+++ b/include/proto/compression.h
@@ -0,0 +1,66 @@
+/*
+ * include/proto/compression.h
+ * This file defines function prototypes for compression.
+ *
+ * Copyright 2012 (C) Exceliance, David Du Colombier <dducolombier@exceliance.fr>
+ *                                William Lallemand <wlallemand@exceliance.fr>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _PROTO_COMP_H
+#define _PROTO_COMP_H
+
+#include <types/compression.h>
+
+int comp_append_type(struct comp *comp, const char *type);
+int comp_append_algo(struct comp *comp, const char *algo);
+
+int http_emit_chunk_size(char *out, unsigned int chksz, int add_crlf);
+int http_compression_buffer_init(struct session *s, struct buffer *in, struct buffer *out);
+int http_compression_buffer_add_data(struct session *s, struct buffer *in, struct buffer *out);
+int http_compression_buffer_end(struct session *s, struct buffer **in, struct buffer **out, int end);
+
+int identity_init(void *v, int level);
+int identity_add_data(void *v, const char *in_data, int in_len, char *out_data, int out_len);
+int identity_flush(void *comp_ctx, struct buffer *out, int flag);
+int identity_reset(void *comp_ctx);
+int identity_end(void *comp_ctx);
+
+
+#ifdef USE_ZLIB
+
+int deflate_init(void *comp_ctx, int level);
+int deflate_add_data(void *v, const char *in_data, int in_len, char *out_data, int out_len);
+int deflate_flush(void *comp_ctx, struct buffer *out, int flag);
+int deflate_reset(void *comp_ctx);
+int deflate_end(void *comp_ctx);
+
+int gzip_init(void *comp_ctx, int level);
+int gzip_add_data(void *v, const char *in_data, int in_len, char *out_data, int out_len);
+int gzip_flush(void *comp_ctx, struct buffer *out, int flag);
+int gzip_reset(void *comp_ctx);
+int gzip_end(void *comp_ctx);
+
+#endif /* USE_ZLIB */
+
+#endif /* _PROTO_COMP_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */