From patchwork Tue Nov 21 14:08:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikhail Abakumov X-Patchwork-Id: 10068291 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C294660375 for ; Tue, 21 Nov 2017 14:20:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4FC0285A4 for ; Tue, 21 Nov 2017 14:20:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA0EA28CD7; Tue, 21 Nov 2017 14:20:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5A4EB2868D for ; Tue, 21 Nov 2017 14:20:48 +0000 (UTC) Received: from localhost ([::1]:34674 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9Pr-0001u6-I0 for patchwork-qemu-devel@patchwork.kernel.org; Tue, 21 Nov 2017 09:20:47 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39232) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9Dk-0000TO-BG for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:08:17 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eH9Dj-0002Sb-GR for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:08:16 -0500 Received: from mail.ispras.ru ([83.149.199.45]:37838) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eH9Dj-0002ST-8W for qemu-devel@nongnu.org; Tue, 21 Nov 2017 09:08:15 -0500 Received: from Misha-PC.lan02.inno (unknown [85.142.117.226]) by mail.ispras.ru (Postfix) with ESMTPSA id 94E7C54006E; Tue, 21 Nov 2017 17:08:14 +0300 (MSK) From: Mihail Abakumov To: qemu-devel@nongnu.org Date: Tue, 21 Nov 2017 17:08:12 +0300 Message-ID: <151127329238.6888.17213631612102603209.stgit@Misha-PC.lan02.inno> In-Reply-To: <151127322955.6888.16198535123422076171.stgit@Misha-PC.lan02.inno> References: <151127322955.6888.16198535123422076171.stgit@Misha-PC.lan02.inno> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 83.149.199.45 Subject: [Qemu-devel] [PATCH v3 10/45] windbg: structures for parsing data stream X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: sw@weilnetz.de, lprosek@redhat.com, dovgaluk@ispras.ru, rkagan@virtuozzo.com, pbonzini@redhat.com, den@openvz.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Added structures for parsing data stream from windbg to packet. Signed-off-by: Mihail Abakumov Signed-off-by: Pavel Dovgalyuk Signed-off-by: Dmitriy Koltunov --- include/exec/windbgstub-utils.h | 11 +++++++++++ windbgstub.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+) diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h index 42dbca1e22..2d74fb847a 100755 --- a/include/exec/windbgstub-utils.h +++ b/include/exec/windbgstub-utils.h @@ -48,6 +48,17 @@ typedef struct InitedAddr { bool is_init; } InitedAddr; +typedef struct PacketData { + union { + struct { + DBGKD_MANIPULATE_STATE64 m64; + uint8_t extra[PACKET_MAX_SIZE - sizeof(DBGKD_MANIPULATE_STATE64)]; + }; + uint8_t buf[PACKET_MAX_SIZE]; + }; + uint16_t extra_size; +} PacketData; + InitedAddr *windbg_get_KPCR(void); InitedAddr *windbg_get_version(void); diff --git a/windbgstub.c b/windbgstub.c index e9aabd807b..395f244d4f 100755 --- a/windbgstub.c +++ b/windbgstub.c @@ -19,6 +19,36 @@ #include "sysemu/kvm.h" #include "sysemu/reset.h" +typedef enum ParsingState { + STATE_LEADER, + STATE_PACKET_TYPE, + STATE_PACKET_BYTE_COUNT, + STATE_PACKET_ID, + STATE_PACKET_CHECKSUM, + STATE_PACKET_DATA, + STATE_TRAILING_BYTE, +} ParsingState; + +typedef enum ParsingResult { + RESULT_NONE, + RESULT_BREAKIN_BYTE, + RESULT_UNKNOWN_PACKET, + RESULT_CONTROL_PACKET, + RESULT_DATA_PACKET, + RESULT_ERROR, +} ParsingResult; + +typedef struct ParsingContext { + /* index in the current buffer, + which depends on the current state */ + int index; + ParsingState state; + ParsingResult result; + KD_PACKET packet; + PacketData data; + const char *name; +} ParsingContext; + typedef struct WindbgState { bool is_loaded;