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![Tobias Schramm](/assets/img/avatar_default.png)
In mapped security modes, files are created with very restrictive permissions (600 for files and 700 for directories). This makes file sharing between virtual machines and users on the host rather complicated. Imagine eg. a group of users that need to access data produced by processes on a virtual machine. Giving those users access to the data will be difficult since the group access mode is always 0. This patch makes the default mode for both files and directories configurable. Existing setups that don't know about the new parameters keep using the current secure behavior. Signed-off-by: Tobias Schramm <tobleminer@gmail.com> Signed-off-by: Greg Kurz <groug@kaod.org>
102 lines
2.4 KiB
C
102 lines
2.4 KiB
C
/*
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* 9p
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu/config-file.h"
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#include "qemu/option.h"
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#include "qemu/module.h"
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#include "qemu/throttle-options.h"
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static QemuOptsList qemu_fsdev_opts = {
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.name = "fsdev",
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.implied_opt_name = "fsdriver",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head),
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.desc = {
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{
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.name = "fsdriver",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "path",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "security_model",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "writeout",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "readonly",
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.type = QEMU_OPT_BOOL,
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}, {
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.name = "socket",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "sock_fd",
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.type = QEMU_OPT_NUMBER,
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}, {
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.name = "fmode",
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.type = QEMU_OPT_NUMBER,
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}, {
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.name = "dmode",
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.type = QEMU_OPT_NUMBER,
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},
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THROTTLE_OPTS,
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{ /*End of list */ }
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},
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};
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static QemuOptsList qemu_virtfs_opts = {
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.name = "virtfs",
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.implied_opt_name = "fsdriver",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head),
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.desc = {
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{
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.name = "fsdriver",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "path",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "mount_tag",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "security_model",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "writeout",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "readonly",
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.type = QEMU_OPT_BOOL,
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}, {
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.name = "socket",
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.type = QEMU_OPT_STRING,
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}, {
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.name = "sock_fd",
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.type = QEMU_OPT_NUMBER,
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}, {
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.name = "fmode",
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.type = QEMU_OPT_NUMBER,
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}, {
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.name = "dmode",
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.type = QEMU_OPT_NUMBER,
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},
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{ /*End of list */ }
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},
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};
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static void fsdev_register_config(void)
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{
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qemu_add_opts(&qemu_fsdev_opts);
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qemu_add_opts(&qemu_virtfs_opts);
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}
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opts_init(fsdev_register_config);
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