1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/* An external file is a file, which is dumped with help a plugin */
#include <unistd.h>
#include "imgset.h"
#include "files.h"
#include "plugin.h"
#include "protobuf.h"
#include "images/ext-file.pb-c.h"
static int dump_one_ext_file(int lfd, u32 id, const struct fd_parms *p)
{
int ret;
struct cr_img *rimg;
FileEntry fe = FILE_ENTRY__INIT;
ExtFileEntry xfe = EXT_FILE_ENTRY__INIT;
ret = run_plugins(DUMP_EXT_FILE, lfd, id);
if (ret < 0)
return ret;
xfe.id = id;
xfe.fown = (FownEntry *)&p->fown;
fe.type = FD_TYPES__EXT;
fe.id = xfe.id;
fe.ext = &xfe;
rimg = img_from_set(glob_imgset, CR_FD_FILES);
return pb_write_one(rimg, &fe, PB_FILE);
}
const struct fdtype_ops ext_dump_ops = {
.type = FD_TYPES__EXT,
.dump = dump_one_ext_file,
};
struct ext_file_info {
struct file_desc d;
ExtFileEntry *xfe;
};
static int open_fd(struct file_desc *d, int *new_fd)
{
struct ext_file_info *xfi;
int fd;
xfi = container_of(d, struct ext_file_info, d);
fd = run_plugins(RESTORE_EXT_FILE, xfi->xfe->id);
if (fd < 0) {
pr_err("Unable to restore %#x\n", xfi->xfe->id);
return -1;
}
if (restore_fown(fd, xfi->xfe->fown))
return -1;
*new_fd = fd;
return 0;
}
static struct file_desc_ops ext_desc_ops = {
.type = FD_TYPES__EXT,
.open = open_fd,
};
static int collect_one_ext(void *o, ProtobufCMessage *base, struct cr_img *i)
{
struct ext_file_info *xfi = o;
xfi->xfe = pb_msg(base, ExtFileEntry);
pr_info("Collected external file with ID %#x\n", xfi->xfe->id);
return file_desc_add(&xfi->d, xfi->xfe->id, &ext_desc_ops);
}
struct collect_image_info ext_file_cinfo = {
.fd_type = CR_FD_EXT_FILES,
.pb_type = PB_EXT_FILE,
.priv_size = sizeof(struct ext_file_info),
.collect = collect_one_ext,
};
int dump_unsupp_fd(struct fd_parms *p, int lfd, char *more, char *info, FdinfoEntry *e)
{
int ret;
ret = do_dump_gen_file(p, lfd, &ext_dump_ops, e);
if (ret == 0)
return 0;
if (ret == -ENOTSUP)
pr_err("Can't dump file %d of that type [%o] (%s %s)\n", p->fd, p->stat.st_mode, more, info);
return -1;
}
|
