root / fsdev / qemu-fsdev.c @ 1de7afc9
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/*
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* Virtio 9p
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*
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* Copyright IBM, Corp. 2010
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*
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* Authors:
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* Gautham R Shenoy <ego@in.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#include <stdio.h> |
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#include <string.h> |
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#include "qemu-fsdev.h" |
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#include "qemu/queue.h" |
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#include "qemu/osdep.h" |
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#include "qemu-common.h" |
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#include "qemu/config-file.h" |
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static QTAILQ_HEAD(FsDriverEntry_head, FsDriverListEntry) fsdriver_entries =
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QTAILQ_HEAD_INITIALIZER(fsdriver_entries); |
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static FsDriverTable FsDrivers[] = {
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{ .name = "local", .ops = &local_ops},
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#ifdef CONFIG_OPEN_BY_HANDLE
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{ .name = "handle", .ops = &handle_ops},
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#endif
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{ .name = "synth", .ops = &synth_ops},
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{ .name = "proxy", .ops = &proxy_ops},
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}; |
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int qemu_fsdev_add(QemuOpts *opts)
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{
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int i;
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struct FsDriverListEntry *fsle;
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const char *fsdev_id = qemu_opts_id(opts); |
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const char *fsdriver = qemu_opt_get(opts, "fsdriver"); |
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const char *writeout = qemu_opt_get(opts, "writeout"); |
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bool ro = qemu_opt_get_bool(opts, "readonly", 0); |
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if (!fsdev_id) {
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fprintf(stderr, "fsdev: No id specified\n");
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return -1; |
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} |
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if (fsdriver) {
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for (i = 0; i < ARRAY_SIZE(FsDrivers); i++) { |
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if (strcmp(FsDrivers[i].name, fsdriver) == 0) { |
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break;
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} |
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} |
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if (i == ARRAY_SIZE(FsDrivers)) {
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fprintf(stderr, "fsdev: fsdriver %s not found\n", fsdriver);
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return -1; |
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} |
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} else {
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fprintf(stderr, "fsdev: No fsdriver specified\n");
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return -1; |
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} |
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fsle = g_malloc0(sizeof(*fsle));
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fsle->fse.fsdev_id = g_strdup(fsdev_id); |
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fsle->fse.ops = FsDrivers[i].ops; |
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if (writeout) {
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if (!strcmp(writeout, "immediate")) { |
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fsle->fse.export_flags |= V9FS_IMMEDIATE_WRITEOUT; |
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} |
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} |
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if (ro) {
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fsle->fse.export_flags |= V9FS_RDONLY; |
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} else {
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fsle->fse.export_flags &= ~V9FS_RDONLY; |
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} |
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if (fsle->fse.ops->parse_opts) {
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if (fsle->fse.ops->parse_opts(opts, &fsle->fse)) {
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return -1; |
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} |
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} |
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QTAILQ_INSERT_TAIL(&fsdriver_entries, fsle, next); |
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return 0; |
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} |
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FsDriverEntry *get_fsdev_fsentry(char *id)
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{
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if (id) {
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struct FsDriverListEntry *fsle;
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QTAILQ_FOREACH(fsle, &fsdriver_entries, next) {
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if (strcmp(fsle->fse.fsdev_id, id) == 0) { |
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return &fsle->fse;
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} |
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} |
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} |
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return NULL; |
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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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machine_init(fsdev_register_config); |
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