diff options
| -rw-r--r-- | src/core/acpimac.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/core/acpimac.c b/src/core/acpimac.c index 5920480..e0074ba 100644 --- a/src/core/acpimac.c +++ b/src/core/acpimac.c @@ -29,6 +29,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <ipxe/base16.h> #include <ipxe/ethernet.h> #include <ipxe/if_ether.h> +#include <ipxe/settings.h> #include <ipxe/acpimac.h> /** @file @@ -249,3 +250,39 @@ int acpi_mac ( uint8_t *hw_addr ) { return -ENOENT; } + +/** + * Fetch system MAC address setting + * + * @v data Buffer to fill with setting data + * @v len Length of buffer + * @ret len Length of setting data, or negative error + */ +static int sysmac_fetch ( void *data, size_t len ) { + uint8_t mac[ETH_ALEN]; + int rc; + + /* Try fetching ACPI MAC address */ + if ( ( rc = acpi_mac ( mac ) ) != 0 ) + return rc; + + /* Return MAC address */ + if ( len > sizeof ( mac ) ) + len = sizeof ( mac ); + memcpy ( data, mac, len ); + return ( sizeof ( mac ) ); +} + +/** System MAC address setting */ +const struct setting sysmac_setting __setting ( SETTING_MISC, sysmac ) = { + .name = "sysmac", + .description = "System MAC", + .type = &setting_type_hex, + .scope = &builtin_scope, +}; + +/** System MAC address built-in setting */ +struct builtin_setting sysmac_builtin_setting __builtin_setting = { + .setting = &sysmac_setting, + .fetch = sysmac_fetch, +}; |