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74db920c GS |
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" | |
526c5237 | 19 | #include "qemu-config.h" |
74db920c | 20 | |
fbcbf101 AK |
21 | static QTAILQ_HEAD(FsDriverEntry_head, FsDriverListEntry) fsdriver_entries = |
22 | QTAILQ_HEAD_INITIALIZER(fsdriver_entries); | |
74db920c | 23 | |
fbcbf101 | 24 | static FsDriverTable FsDrivers[] = { |
9f107513 | 25 | { .name = "local", .ops = &local_ops}, |
5f542225 | 26 | { .name = "handle", .ops = &handle_ops}, |
74db920c GS |
27 | }; |
28 | ||
29 | int qemu_fsdev_add(QemuOpts *opts) | |
30 | { | |
fbcbf101 | 31 | struct FsDriverListEntry *fsle; |
74db920c | 32 | int i; |
9f506893 | 33 | const char *fsdev_id = qemu_opts_id(opts); |
fbcbf101 | 34 | const char *fsdriver = qemu_opt_get(opts, "fsdriver"); |
9f506893 HPB |
35 | const char *path = qemu_opt_get(opts, "path"); |
36 | const char *sec_model = qemu_opt_get(opts, "security_model"); | |
d3ab98e6 AK |
37 | const char *writeout = qemu_opt_get(opts, "writeout"); |
38 | ||
74db920c | 39 | |
9f506893 | 40 | if (!fsdev_id) { |
74db920c GS |
41 | fprintf(stderr, "fsdev: No id specified\n"); |
42 | return -1; | |
43 | } | |
44 | ||
fbcbf101 AK |
45 | if (fsdriver) { |
46 | for (i = 0; i < ARRAY_SIZE(FsDrivers); i++) { | |
47 | if (strcmp(FsDrivers[i].name, fsdriver) == 0) { | |
9f506893 HPB |
48 | break; |
49 | } | |
74db920c | 50 | } |
74db920c | 51 | |
fbcbf101 AK |
52 | if (i == ARRAY_SIZE(FsDrivers)) { |
53 | fprintf(stderr, "fsdev: fsdriver %s not found\n", fsdriver); | |
9f506893 HPB |
54 | return -1; |
55 | } | |
56 | } else { | |
fbcbf101 | 57 | fprintf(stderr, "fsdev: No fsdriver specified\n"); |
74db920c GS |
58 | return -1; |
59 | } | |
60 | ||
9f506893 | 61 | if (!sec_model) { |
9ce56db6 VJJ |
62 | fprintf(stderr, "fsdev: No security_model specified.\n"); |
63 | return -1; | |
64 | } | |
65 | ||
9f506893 HPB |
66 | if (!path) { |
67 | fprintf(stderr, "fsdev: No path specified.\n"); | |
68 | return -1; | |
69 | } | |
70 | ||
7267c094 | 71 | fsle = g_malloc(sizeof(*fsle)); |
74db920c | 72 | |
7267c094 AL |
73 | fsle->fse.fsdev_id = g_strdup(fsdev_id); |
74 | fsle->fse.path = g_strdup(path); | |
75 | fsle->fse.security_model = g_strdup(sec_model); | |
fbcbf101 | 76 | fsle->fse.ops = FsDrivers[i].ops; |
d3ab98e6 AK |
77 | fsle->fse.export_flags = 0; |
78 | if (writeout) { | |
79 | if (!strcmp(writeout, "immediate")) { | |
80 | fsle->fse.export_flags = V9FS_IMMEDIATE_WRITEOUT; | |
81 | } | |
82 | } | |
fbcbf101 | 83 | QTAILQ_INSERT_TAIL(&fsdriver_entries, fsle, next); |
74db920c | 84 | return 0; |
74db920c GS |
85 | } |
86 | ||
fbcbf101 | 87 | FsDriverEntry *get_fsdev_fsentry(char *id) |
74db920c | 88 | { |
9f506893 | 89 | if (id) { |
fbcbf101 | 90 | struct FsDriverListEntry *fsle; |
74db920c | 91 | |
fbcbf101 | 92 | QTAILQ_FOREACH(fsle, &fsdriver_entries, next) { |
9f506893 HPB |
93 | if (strcmp(fsle->fse.fsdev_id, id) == 0) { |
94 | return &fsle->fse; | |
95 | } | |
74db920c GS |
96 | } |
97 | } | |
98 | return NULL; | |
99 | } | |
526c5237 GH |
100 | |
101 | static void fsdev_register_config(void) | |
102 | { | |
103 | qemu_add_opts(&qemu_fsdev_opts); | |
104 | qemu_add_opts(&qemu_virtfs_opts); | |
105 | } | |
106 | machine_init(fsdev_register_config); | |
107 |