xref: /openbmc/qemu/qga/commands-common.h (revision 954a6c4f)
1 /*
2  * QEMU Guest Agent common/cross-platform common commands
3  *
4  * Copyright (c) 2020 Red Hat, Inc.
5  *
6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
7  * See the COPYING file in the top-level directory.
8  */
9 #ifndef QGA_COMMANDS_COMMON_H
10 #define QGA_COMMANDS_COMMON_H
11 
12 #include "qga-qapi-types.h"
13 #include "guest-agent-core.h"
14 #include "qemu/queue.h"
15 
16 #if defined(__linux__)
17 #include <linux/fs.h>
18 #ifdef FIFREEZE
19 #define CONFIG_FSFREEZE
20 #endif
21 #ifdef FITRIM
22 #define CONFIG_FSTRIM
23 #endif
24 #endif /* __linux__ */
25 
26 #ifdef __FreeBSD__
27 #include <ufs/ffs/fs.h>
28 #ifdef UFSSUSPEND
29 #define CONFIG_FSFREEZE
30 #endif
31 #endif /* __FreeBSD__ */
32 
33 #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM)
34 typedef struct FsMount {
35     char *dirname;
36     char *devtype;
37     unsigned int devmajor, devminor;
38 #if defined(__FreeBSD__)
39     dev_t dev;
40     fsid_t fsid;
41 #endif
42     QTAILQ_ENTRY(FsMount) next;
43 } FsMount;
44 
45 typedef QTAILQ_HEAD(FsMountList, FsMount) FsMountList;
46 
47 bool build_fs_mount_list(FsMountList *mounts, Error **errp);
48 void free_fs_mount_list(FsMountList *mounts);
49 #endif /* CONFIG_FSFREEZE || CONFIG_FSTRIM */
50 
51 #if defined(CONFIG_FSFREEZE)
52 int64_t qmp_guest_fsfreeze_do_freeze_list(bool has_mountpoints,
53                                           strList *mountpoints,
54                                           FsMountList mounts,
55                                           Error **errp);
56 int qmp_guest_fsfreeze_do_thaw(Error **errp);
57 #endif /* CONFIG_FSFREEZE */
58 
59 #ifdef HAVE_GETIFADDRS
60 #include <ifaddrs.h>
61 bool guest_get_hw_addr(struct ifaddrs *ifa, unsigned char *buf,
62                        bool *obtained, Error **errp);
63 #endif
64 
65 typedef struct GuestFileHandle GuestFileHandle;
66 
67 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp);
68 
69 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
70                                       int64_t count, Error **errp);
71 
72 /**
73  * qga_get_host_name:
74  * @errp: Error object
75  *
76  * Operating system agnostic way of querying host name.
77  * Compared to g_get_host_name(), it doesn't cache the result.
78  *
79  * Returns allocated hostname (caller should free), NULL on failure.
80  */
81 char *qga_get_host_name(Error **errp);
82 
83 #endif
84