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
97
98
99
100
101
102
103
104
105
106
107
|
/* Copyright 2012 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <uuid/uuid.h>
#include "cgpt.h"
#include "vboot_host.h"
extern const char* progname;
static void Usage(void)
{
printf("\nUsage: %s prioritize [OPTIONS] DRIVE\n\n"
"Reorder the priority of all active ChromeOS Kernel partitions.\n\n"
"Options:\n"
" -D NUM Size (in bytes) of the disk where partitions reside;\n"
" default 0, meaning partitions and GPT structs are\n"
" both on DRIVE\n"
" -P NUM Highest priority to use in the new ordering. The\n"
" other partitions will be ranked in decreasing\n"
" priority while preserving their original order.\n"
" If necessary the lowest ranks will be coalesced.\n"
" No active kernels will be lowered to priority 0.\n"
" -i NUM Specify the partition to make the highest in the new\n"
" order.\n"
" -f Friends of the given partition (those with the same\n"
" starting priority) are also updated to the new\n"
" highest priority.\n"
"\n"
"With no options this will set the lowest active kernel to\n"
"priority 1 while maintaining the original order.\n"
"\n", progname);
}
int cmd_prioritize(int argc, char *argv[]) {
CgptPrioritizeParams params;
memset(¶ms, 0, sizeof(params));
int c;
int errorcnt = 0;
char *e = 0;
opterr = 0; // quiet, you
while ((c=getopt(argc, argv, ":hi:fP:D:")) != -1)
{
switch (c)
{
case 'D':
params.drive_size = strtoull(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'i':
params.set_partition = (uint32_t)strtoul(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
break;
case 'f':
params.set_friends = 1;
break;
case 'P':
params.max_priority = (int)strtol(optarg, &e, 0);
errorcnt += check_int_parse(c, e);
errorcnt += check_int_limit(c, params.max_priority, 1, 15);
break;
case 'h':
Usage();
return CGPT_OK;
case '?':
Error("unrecognized option: -%c\n", optopt);
errorcnt++;
break;
case ':':
Error("missing argument to -%c\n", optopt);
errorcnt++;
break;
default:
errorcnt++;
break;
}
}
if (errorcnt)
{
Usage();
return CGPT_FAILED;
}
if (params.set_friends && !params.set_partition) {
Error("the -f option is only useful with the -i option\n");
Usage();
return CGPT_FAILED;
}
if (optind >= argc) {
Error("missing drive argument\n");
return CGPT_FAILED;
}
params.drive_name = argv[optind];
return CgptPrioritize(¶ms);
}
|
