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authorJeremy Kerr <jk@ozlabs.org>2009-01-02 15:30:29 +0900
committerJeremy Kerr <jk@ozlabs.org>2009-01-02 15:30:29 +0900
commitb118597194815910897ccf86d77b8b5a066adf5a (patch)
tree1c1579a5ca70cdcf7722796a9c04792b9ebea968 /lib
parent2f018d544eb544e609018f3d95eb653c7cd6fff0 (diff)
downloadtalos-petitboot-b118597194815910897ccf86d77b8b5a066adf5a.tar.gz
talos-petitboot-b118597194815910897ccf86d77b8b5a066adf5a.zip
Use a list for device->boot_options
Makes adding and removing options easier for parsers. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/pb-protocol/pb-protocol.c35
-rw-r--r--lib/pb-protocol/pb-protocol.h25
2 files changed, 38 insertions, 22 deletions
diff --git a/lib/pb-protocol/pb-protocol.c b/lib/pb-protocol/pb-protocol.c
index 2fd76c5..ffa2c1b 100644
--- a/lib/pb-protocol/pb-protocol.c
+++ b/lib/pb-protocol/pb-protocol.c
@@ -4,6 +4,7 @@
#include <asm/byteorder.h>
#include <talloc/talloc.h>
+#include <list/list.h>
#include "pb-protocol.h"
@@ -115,7 +116,8 @@ static int optional_strlen(const char *str)
int pb_protocol_device_len(struct device *dev)
{
- int len, i;
+ struct boot_option *opt;
+ int len;
len = 4 + optional_strlen(dev->id) +
4 + optional_strlen(dev->name) +
@@ -123,8 +125,7 @@ int pb_protocol_device_len(struct device *dev)
4 + optional_strlen(dev->icon_file) +
4;
- for (i = 0; i < dev->n_options; i++) {
- struct boot_option *opt = &dev->options[i];
+ list_for_each_entry(&dev->boot_options, opt, list) {
len += 4 + optional_strlen(opt->id) +
4 + optional_strlen(opt->name) +
4 + optional_strlen(opt->description) +
@@ -139,8 +140,9 @@ int pb_protocol_device_len(struct device *dev)
int pb_protocol_serialise_device(struct device *dev, char *buf, int buf_len)
{
+ struct boot_option *opt;
+ uint32_t n;
char *pos;
- int i;
pos = buf;
@@ -151,12 +153,16 @@ int pb_protocol_serialise_device(struct device *dev, char *buf, int buf_len)
pos += pb_protocol_serialise_string(pos, dev->icon_file);
/* write option count */
- *(uint32_t *)pos = __cpu_to_be32(dev->n_options);
+ n = 0;
+
+ list_for_each_entry(&dev->boot_options, opt, list)
+ n++;
+
+ *(uint32_t *)pos = __cpu_to_be32(n);
pos += sizeof(uint32_t);
/* write each option */
- for (i = 0; i < dev->n_options; i++) {
- struct boot_option *opt = &dev->options[i];
+ list_for_each_entry(&dev->boot_options, opt, list) {
pos += pb_protocol_serialise_string(pos, opt->id);
pos += pb_protocol_serialise_string(pos, opt->name);
pos += pb_protocol_serialise_string(pos, opt->description);
@@ -252,7 +258,7 @@ struct device *pb_protocol_deserialise_device(void *ctx,
{
struct device *dev;
char *pos;
- int i, len;
+ int i, n_options, len;
len = message->payload_len;
pos = message->payload;
@@ -271,12 +277,15 @@ struct device *pb_protocol_deserialise_device(void *ctx,
if (read_string(dev, &pos, &len, &dev->icon_file))
goto out_err;
- dev->n_options = __be32_to_cpu(*(uint32_t *)pos);
- dev->options = talloc_array(dev, struct boot_option, dev->n_options);
+ n_options = __be32_to_cpu(*(uint32_t *)pos);
pos += sizeof(uint32_t);
- for (i = 0; i < dev->n_options; i++) {
- struct boot_option *opt = &dev->options[i];
+ list_init(&dev->boot_options);
+
+ for (i = 0; i < n_options; i++) {
+ struct boot_option *opt;
+
+ opt = talloc(dev, struct boot_option);
if (read_string(opt, &pos, &len, &opt->id))
goto out_err;
@@ -297,6 +306,8 @@ struct device *pb_protocol_deserialise_device(void *ctx,
if (read_string(opt, &pos, &len,
&opt->boot_args))
goto out_err;
+
+ list_add(&dev->boot_options, &opt->list);
}
return dev;
diff --git a/lib/pb-protocol/pb-protocol.h b/lib/pb-protocol/pb-protocol.h
index 7b557d6..ce9c96b 100644
--- a/lib/pb-protocol/pb-protocol.h
+++ b/lib/pb-protocol/pb-protocol.h
@@ -3,6 +3,8 @@
#include <stdint.h>
+#include <list/list.h>
+
#define PB_SOCKET_PATH "/tmp/petitboot.ui"
#define PB_PROTOCOL_MAX_PAYLOAD_SIZE 4096
@@ -24,16 +26,19 @@ struct device {
char *description;
char *icon_file;
- struct boot_option {
- char *id;
- char *name;
- char *description;
- char *icon_file;
- char *boot_image_file;
- char *initrd_file;
- char *boot_args;
- } *options;
- int n_options;
+ struct list boot_options;
+};
+
+struct boot_option {
+ char *id;
+ char *name;
+ char *description;
+ char *icon_file;
+ char *boot_image_file;
+ char *initrd_file;
+ char *boot_args;
+
+ struct list_item list;
};
int pb_protocol_device_len(struct device *dev);
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