From patchwork Fri Jul 20 21:40:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bandan Das X-Patchwork-Id: 947219 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41XPTg2ZvBz9s7X for ; Sat, 21 Jul 2018 07:41:26 +1000 (AEST) Received: from localhost ([::1]:49893 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgd9P-0005FX-4i for incoming@patchwork.ozlabs.org; Fri, 20 Jul 2018 17:41:23 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42722) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgd8g-0005DG-G4 for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fgd8d-0005mp-9P for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:38 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:50032 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fgd8d-0005lI-47 for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:35 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E7450DEF0E for ; Fri, 20 Jul 2018 21:40:33 +0000 (UTC) Received: from gigantic.usersys.redhat.com (dhcp-17-169.bos.redhat.com [10.18.17.169]) by smtp.corp.redhat.com (Postfix) with ESMTP id C90AD2156897; Fri, 20 Jul 2018 21:40:33 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Fri, 20 Jul 2018 17:40:16 -0400 Message-Id: <20180720214020.22897-2-bsd@redhat.com> In-Reply-To: <20180720214020.22897-1-bsd@redhat.com> References: <20180720214020.22897-1-bsd@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Fri, 20 Jul 2018 21:40:33 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.2]); Fri, 20 Jul 2018 21:40:33 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'bsd@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 1/5] dev-mtp: add support for canceling transaction 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: kraxel@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The initiator can choose to cancel an ongoing request which is specified by bRequest=0x64. If such a request arrives, free up any pending state Signed-off-by: Bandan Das --- hw/usb/dev-mtp.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 1ded7ac9a3..c40b0de0bb 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -82,6 +82,7 @@ enum mtp_code { FMT_ASSOCIATION = 0x3001, /* event codes */ + EVT_CANCEL_TRANSACTION = 0x4001, EVT_OBJ_ADDED = 0x4002, EVT_OBJ_REMOVED = 0x4003, EVT_OBJ_INFO_CHANGED = 0x4007, @@ -1551,14 +1552,35 @@ static void usb_mtp_handle_control(USBDevice *dev, USBPacket *p, int length, uint8_t *data) { int ret; + MTPState *s = USB_MTP(dev); + uint16_t *event = (uint16_t *)data; - ret = usb_desc_handle_control(dev, p, request, value, index, length, data); - if (ret >= 0) { - return; + switch (request) { + case ClassInterfaceOutRequest | 0x64: + if (*event == EVT_CANCEL_TRANSACTION) { + g_free(s->result); + s->result = NULL; + usb_mtp_data_free(s->data_in); + s->data_in = NULL; + if (s->write_pending) { + g_free(s->dataset.filename); + s->write_pending = false; + } + usb_mtp_data_free(s->data_out); + s->data_out = NULL; + } else { + p->status = USB_RET_STALL; + } + break; + default: + ret = usb_desc_handle_control(dev, p, request, + value, index, length, data); + if (ret >= 0) { + return; + } } trace_usb_mtp_stall(dev->addr, "unknown control request"); - p->status = USB_RET_STALL; } static void usb_mtp_cancel_packet(USBDevice *dev, USBPacket *p) From patchwork Fri Jul 20 21:40:17 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bandan Das X-Patchwork-Id: 947225 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41XPXW5RkQz9s4V for ; Sat, 21 Jul 2018 07:43:55 +1000 (AEST) Received: from localhost ([::1]:49902 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgdBp-0007QR-Cn for incoming@patchwork.ozlabs.org; Fri, 20 Jul 2018 17:43:53 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42723) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgd8g-0005DH-Fu for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fgd8d-0005mi-9C for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:38 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:34186 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fgd8d-0005lO-4S for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:35 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 16CF2FA449 for ; Fri, 20 Jul 2018 21:40:34 +0000 (UTC) Received: from gigantic.usersys.redhat.com (dhcp-17-169.bos.redhat.com [10.18.17.169]) by smtp.corp.redhat.com (Postfix) with ESMTP id EDA462156897; Fri, 20 Jul 2018 21:40:33 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Fri, 20 Jul 2018 17:40:17 -0400 Message-Id: <20180720214020.22897-3-bsd@redhat.com> In-Reply-To: <20180720214020.22897-1-bsd@redhat.com> References: <20180720214020.22897-1-bsd@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'bsd@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 2/5] dev-mtp: fix buffer allocation for writing file contents 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: kraxel@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" usb_mtp_realloc() was being incorrectly used when allocating buffer for incoming data. Set d->length only after resizing the buffer. Signed-off-by: Bandan Das --- hw/usb/dev-mtp.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index c40b0de0bb..1b72603dc5 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1721,6 +1721,7 @@ static void usb_mtp_get_data(MTPState *s, mtp_container *container, MTPData *d = s->data_out; uint64_t dlen; uint32_t data_len = p->iov.size; + uint64_t total_len; if (!d) { usb_mtp_queue_result(s, RES_INVALID_OBJECTINFO, 0, @@ -1729,10 +1730,11 @@ static void usb_mtp_get_data(MTPState *s, mtp_container *container, } if (d->first) { /* Total length of incoming data */ - d->length = cpu_to_le32(container->length) - sizeof(mtp_container); + total_len = cpu_to_le32(container->length) - sizeof(mtp_container); /* Length of data in this packet */ data_len -= sizeof(mtp_container); - usb_mtp_realloc(d, d->length); + usb_mtp_realloc(d, total_len); + d->length += total_len; d->offset = 0; d->first = false; } From patchwork Fri Jul 20 21:40:18 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bandan Das X-Patchwork-Id: 947221 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41XPTh6mdvz9s9F for ; Sat, 21 Jul 2018 07:41:28 +1000 (AEST) Received: from localhost ([::1]:49894 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgd9S-0005IP-Dc for incoming@patchwork.ozlabs.org; Fri, 20 Jul 2018 17:41:26 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42729) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgd8g-0005DM-GZ for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fgd8d-0005mt-9s for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:38 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:48090 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fgd8d-0005ln-4N for qemu-devel@nongnu.org; Fri, 20 Jul 2018 17:40:35 -0400 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 3EEA9818F6E1 for ; Fri, 20 Jul 2018 21:40:34 +0000 (UTC) Received: from gigantic.usersys.redhat.com (dhcp-17-169.bos.redhat.com [10.18.17.169]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1DF032156897; Fri, 20 Jul 2018 21:40:34 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Fri, 20 Jul 2018 17:40:18 -0400 Message-Id: <20180720214020.22897-4-bsd@redhat.com> In-Reply-To: <20180720214020.22897-1-bsd@redhat.com> References: <20180720214020.22897-1-bsd@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.8]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'bsd@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 3/5] dev-mtp: retry write for incomplete transfers 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: kraxel@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" For large buffers, write may not copy the full buffer. For example, on Linux, write imposes a limit of 0x7ffff000. Note that this does not fix >4G transfers but ~>2G files will transfer successfully. Signed-off-by: Bandan Das --- hw/usb/dev-mtp.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 1b72603dc5..c8f6eb4e9e 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1602,6 +1602,24 @@ static void utf16_to_str(uint8_t len, uint16_t *arr, char *name) g_free(wstr); } +/* Wrapper around write, returns 0 on failure */ +static uint64_t write_retry(int fd, void *buf, uint64_t size) +{ + uint64_t bytes_left = size, ret; + + while (bytes_left > 0) { + ret = write(fd, buf, bytes_left); + if ((ret == -1) && (errno != EINTR || errno != EAGAIN || + errno != EWOULDBLOCK)) { + break; + } + bytes_left -= ret; + buf += ret; + } + + return size - bytes_left; +} + static void usb_mtp_write_data(MTPState *s) { MTPData *d = s->data_out; @@ -1644,8 +1662,8 @@ static void usb_mtp_write_data(MTPState *s) goto success; } - rc = write(d->fd, d->data, s->dataset.size); - if (rc == -1) { + rc = write_retry(d->fd, d->data, s->dataset.size); + if (!rc) { usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, 0, 0, 0, 0); goto done; From patchwork Fri Jul 20 21:40:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bandan Das X-Patchwork-Id: 947226 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41XPZC4xbNz9s4V for ; Sat, 21 Jul 2018 07:45:23 +1000 (AEST) Received: from localhost ([::1]:49918 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fgdDF-0000gY-Ch for incoming@patchwork.ozlabs.org; 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Fri, 20 Jul 2018 21:40:34 +0000 (UTC) From: Bandan Das To: qemu-devel@nongnu.org Date: Fri, 20 Jul 2018 17:40:20 -0400 Message-Id: <20180720214020.22897-6-bsd@redhat.com> In-Reply-To: <20180720214020.22897-1-bsd@redhat.com> References: <20180720214020.22897-1-bsd@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.5]); Fri, 20 Jul 2018 21:40:34 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'bsd@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PATCH 5/5] dev-mtp: rename x-root to rootdir 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: kraxel@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" x-root was renamed as such owing to the experimental nature of the property; the underlying filesystem semantics were undecided Signed-off-by: Bandan Das --- hw/usb/dev-mtp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 2e3ea58da6..3fdc4b0da1 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -2018,7 +2018,7 @@ static void usb_mtp_realize(USBDevice *dev, Error **errp) QTAILQ_INIT(&s->objects); if (s->desc == NULL) { if (s->root == NULL) { - error_setg(errp, "usb-mtp: x-root property must be configured"); + error_setg(errp, "usb-mtp: rootdir property must be configured"); return; } s->desc = strrchr(s->root, '/'); @@ -2047,7 +2047,7 @@ static const VMStateDescription vmstate_usb_mtp = { }; static Property mtp_properties[] = { - DEFINE_PROP_STRING("x-root", MTPState, root), + DEFINE_PROP_STRING("rootdir", MTPState, root), DEFINE_PROP_STRING("desc", MTPState, desc), DEFINE_PROP_BOOL("readonly", MTPState, readonly, true), DEFINE_PROP_END_OF_LIST(),