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
|
#define _GNU_SOURCE
#include <string.h>
#include <talloc/talloc.h>
#include <url/url.h>
#include "parser.h"
#include "parser-conf.h"
#include "parser-utils.h"
#include "resource.h"
static void pxe_finish(struct conf_context *conf)
{
if (conf->parser_info)
discover_context_add_boot_option(conf->dc, conf->parser_info);
}
static void pxe_process_pair(struct conf_context *ctx,
const char *name, char *value)
{
struct discover_boot_option *opt = ctx->parser_info;
struct pb_url *url;
/* quirk in the syslinux config format: initrd can be separated
* by an '=' */
if (!name && !strncasecmp(value, "initrd=", strlen("initrd="))) {
name = "initrd";
value += strlen("initrd=");
}
if (!name)
return;
if (streq(name, "LABEL")) {
if (opt)
pxe_finish(ctx);
opt = discover_boot_option_create(ctx->dc, ctx->dc->device);
ctx->parser_info = opt;
opt->option->name = talloc_strdup(opt, value);
opt->option->id = talloc_asprintf(opt, "%s@%p",
ctx->dc->device->device->id, opt);
return;
}
/* all other parameters need an option */
if (!opt)
return;
if (streq(name, "KERNEL")) {
url = pb_url_join(ctx->dc, ctx->dc->conf_url, value);
opt->boot_image = create_url_resource(opt, url);
} else if (streq(name, "INITRD")) {
url = pb_url_join(ctx->dc, ctx->dc->conf_url, value);
opt->initrd = create_url_resource(opt, url);
} else if (streq(name, "APPEND")) {
char *str, *end;
opt->option->boot_args = talloc_strdup(opt->option, value);
str = strcasestr(value, "INITRD=");
if (str) {
str += strlen("INITRD=");
end = strchrnul(str, ' ');
*end = '\0';
url = pb_url_join(ctx->dc, ctx->dc->conf_url, str);
opt->initrd = create_url_resource(opt, url);
}
}
}
static int pxe_parse(struct discover_context *dc, char *buf, int len)
{
struct conf_context *conf;
conf = talloc_zero(dc, struct conf_context);
if (!conf)
return 0;
conf->dc = dc;
conf->get_pair = conf_get_pair_space;
conf->process_pair = pxe_process_pair;
conf->finish = pxe_finish;
conf_parse_buf(conf, buf, len);
talloc_free(conf);
return 1;
}
static struct parser pxe_parser = {
.name = "pxe",
.parse = pxe_parse,
.method = CONF_METHOD_DHCP,
};
register_parser(pxe_parser);
|
