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[settings] Allow for IPv6 setting types in non-IPv6 builds

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Allow for the existence of references to IPv6 setting types without
dragging in the whole IPv6 stack, by placing the definition of
setting_type_ipv6 in core/settings.c and providing weak stub methods
for parse_ipv6_setting() and format_ipv6_setting().

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-12-04 22:06:10 +00:00
parent 22001cb206
commit 17451b53e2
7 changed files with 132 additions and 51 deletions
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45
src/net/ipv4.c
View File

@@ -590,6 +590,51 @@ struct sockaddr_converter ipv4_sockaddr_converter __sockaddr_converter = {
******************************************************************************
*/
/**
* Parse IPv4 address setting value
*
* @v type Setting type
* @v value Formatted setting value
* @v buf Buffer to contain raw value
* @v len Length of buffer
* @ret len Length of raw value, or negative error
*/
int parse_ipv4_setting ( const struct setting_type *type __unused,
const char *value, void *buf, size_t len ) {
struct in_addr ipv4;
/* Parse IPv4 address */
if ( inet_aton ( value, &ipv4 ) == 0 )
return -EINVAL;
/* Copy to buffer */
if ( len > sizeof ( ipv4 ) )
len = sizeof ( ipv4 );
memcpy ( buf, &ipv4, len );
return ( sizeof ( ipv4 ) );
}
/**
* Format IPv4 address setting value
*
* @v type Setting type
* @v raw Raw setting value
* @v raw_len Length of raw setting value
* @v buf Buffer to contain formatted value
* @v len Length of buffer
* @ret len Length of formatted value, or negative error
*/
int format_ipv4_setting ( const struct setting_type *type __unused,
const void *raw, size_t raw_len, char *buf,
size_t len ) {
const struct in_addr *ipv4 = raw;
if ( raw_len < sizeof ( *ipv4 ) )
return -EINVAL;
return snprintf ( buf, len, "%s", inet_ntoa ( *ipv4 ) );
}
/** IPv4 address setting */
const struct setting ip_setting __setting ( SETTING_IPv4 ) = {
.name = "ip",

17
src/net/ipv6.c
View File

@@ -954,8 +954,8 @@ struct sockaddr_converter ipv6_sockaddr_converter __sockaddr_converter = {
* @v len Length of buffer
* @ret len Length of raw value, or negative error
*/
static int parse_ipv6_setting ( const struct setting_type *type __unused,
const char *value, void *buf, size_t len ) {
int parse_ipv6_setting ( const struct setting_type *type __unused,
const char *value, void *buf, size_t len ) {
struct in6_addr ipv6;
int rc;
@@ -981,9 +981,9 @@ static int parse_ipv6_setting ( const struct setting_type *type __unused,
* @v len Length of buffer
* @ret len Length of formatted value, or negative error
*/
static int format_ipv6_setting ( const struct setting_type *type __unused,
const void *raw, size_t raw_len, char *buf,
size_t len ) {
int format_ipv6_setting ( const struct setting_type *type __unused,
const void *raw, size_t raw_len, char *buf,
size_t len ) {
const struct in6_addr *ipv6 = raw;
if ( raw_len < sizeof ( *ipv6 ) )
@@ -991,13 +991,6 @@ static int format_ipv6_setting ( const struct setting_type *type __unused,
return snprintf ( buf, len, "%s", inet6_ntoa ( ipv6 ) );
}
/** An IPv6 address setting type */
const struct setting_type setting_type_ipv6 __setting_type = {
.name = "ipv6",
.parse = parse_ipv6_setting,
.format = format_ipv6_setting,
};
/**
* Create IPv6 network device
*

7
src/net/udp/dhcpv6.c
View File

@@ -255,9 +255,6 @@ static int dhcpv6_iaaddr ( struct dhcpv6_option_list *options, uint32_t iaid,
*
*/
/** DHCPv6 settings scope */
static const struct settings_scope dhcpv6_settings_scope;
/** A DHCPv6 settings block */
struct dhcpv6_settings {
/** Reference count */
@@ -278,7 +275,7 @@ struct dhcpv6_settings {
static int dhcpv6_applies ( struct settings *settings __unused,
const struct setting *setting ) {
return ( setting->scope == &dhcpv6_settings_scope );
return ( setting->scope == &ipv6_scope );
}
/**
@@ -339,7 +336,7 @@ static int dhcpv6_register ( struct dhcpv6_option_list *options,
}
ref_init ( &dhcpv6set->refcnt, NULL );
settings_init ( &dhcpv6set->settings, &dhcpv6_settings_operations,
&dhcpv6set->refcnt, &dhcpv6_settings_scope );
&dhcpv6set->refcnt, &ipv6_scope );
data = ( ( ( void * ) dhcpv6set ) + sizeof ( *dhcpv6set ) );
len = options->len;
memcpy ( data, options->data, len );