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Added ipv4 configuration type

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This commit is contained in:
Michael Brown
2006-08-11 18:22:41 +00:00
parent 7029fb8eff
commit fe774fe356
1 changed files with 56 additions and 0 deletions
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56
src/core/settings.c
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@@ -21,6 +21,8 @@
#include <string.h>
#include <errno.h>
#include <assert.h>
#include <vsprintf.h>
#include <gpxe/in.h>
#include <gpxe/settings.h>
/** @file
@@ -195,3 +197,57 @@ struct config_setting_type config_setting_type_string __config_setting_type = {
.show = show_string,
.set = set_string,
};
/**
* Show value of IPv4 setting
*
* @v context Configuration context
* @v setting Configuration setting
* @v buf Buffer to contain value
* @v len Length of buffer
* @ret rc Return status code
*/
static int show_ipv4 ( struct config_context *context,
struct config_setting *setting,
char *buf, size_t len ) {
struct dhcp_option *option;
struct in_addr ipv4;
option = find_dhcp_option ( context->options, setting->tag );
if ( ! option )
return -ENOENT;
dhcp_ipv4_option ( option, &ipv4 );
snprintf ( buf, len, inet_ntoa ( ipv4 ) );
return 0;
}
/** Set value of IPV4 setting
*
* @v context Configuration context
* @v setting Configuration setting
* @v value Setting value (as a string)
* @ret rc Return status code
*/
static int set_ipv4 ( struct config_context *context,
struct config_setting *setting,
const char *value ) {
struct dhcp_option *option;
struct in_addr ipv4;
int rc;
if ( ( rc = inet_aton ( value, &ipv4 ) ) != 0 )
return rc;
option = set_dhcp_option ( context->options, setting->tag,
&ipv4, sizeof ( ipv4 ) );
if ( ! option )
return -ENOMEM;
return 0;
}
/** An IPv4 configuration setting */
struct config_setting_type config_setting_type_ipv4 __config_setting_type = {
.name = "ipv4",
.show = show_ipv4,
.set = set_ipv4,
};