1 /* 2 * Virtio 9p 3 * 4 * Copyright IBM, Corp. 2010 5 * 6 * Authors: 7 * Gautham R Shenoy <ego@in.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2. See 10 * the COPYING file in the top-level directory. 11 * 12 */ 13 #include <stdio.h> 14 #include <string.h> 15 #include "qemu-fsdev.h" 16 #include "qemu-queue.h" 17 #include "osdep.h" 18 #include "qemu-common.h" 19 #include "qemu-config.h" 20 21 static QTAILQ_HEAD(FsTypeEntry_head, FsTypeListEntry) fstype_entries = 22 QTAILQ_HEAD_INITIALIZER(fstype_entries); 23 24 static FsTypeTable FsTypes[] = { 25 { .name = "local", .ops = &local_ops}, 26 { .name = "handle", .ops = &handle_ops}, 27 }; 28 29 int qemu_fsdev_add(QemuOpts *opts) 30 { 31 struct FsTypeListEntry *fsle; 32 int i; 33 const char *fsdev_id = qemu_opts_id(opts); 34 const char *fstype = qemu_opt_get(opts, "fstype"); 35 const char *path = qemu_opt_get(opts, "path"); 36 const char *sec_model = qemu_opt_get(opts, "security_model"); 37 38 if (!fsdev_id) { 39 fprintf(stderr, "fsdev: No id specified\n"); 40 return -1; 41 } 42 43 if (fstype) { 44 for (i = 0; i < ARRAY_SIZE(FsTypes); i++) { 45 if (strcmp(FsTypes[i].name, fstype) == 0) { 46 break; 47 } 48 } 49 50 if (i == ARRAY_SIZE(FsTypes)) { 51 fprintf(stderr, "fsdev: fstype %s not found\n", fstype); 52 return -1; 53 } 54 } else { 55 fprintf(stderr, "fsdev: No fstype specified\n"); 56 return -1; 57 } 58 59 if (!sec_model) { 60 fprintf(stderr, "fsdev: No security_model specified.\n"); 61 return -1; 62 } 63 64 if (!path) { 65 fprintf(stderr, "fsdev: No path specified.\n"); 66 return -1; 67 } 68 69 fsle = g_malloc(sizeof(*fsle)); 70 71 fsle->fse.fsdev_id = g_strdup(fsdev_id); 72 fsle->fse.path = g_strdup(path); 73 fsle->fse.security_model = g_strdup(sec_model); 74 fsle->fse.ops = FsTypes[i].ops; 75 76 QTAILQ_INSERT_TAIL(&fstype_entries, fsle, next); 77 return 0; 78 79 } 80 81 FsTypeEntry *get_fsdev_fsentry(char *id) 82 { 83 if (id) { 84 struct FsTypeListEntry *fsle; 85 86 QTAILQ_FOREACH(fsle, &fstype_entries, next) { 87 if (strcmp(fsle->fse.fsdev_id, id) == 0) { 88 return &fsle->fse; 89 } 90 } 91 } 92 return NULL; 93 } 94 95 static void fsdev_register_config(void) 96 { 97 qemu_add_opts(&qemu_fsdev_opts); 98 qemu_add_opts(&qemu_virtfs_opts); 99 } 100 machine_init(fsdev_register_config); 101 102