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[pxe] Split out platform-independent portions of cachedhcp.c

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Split out the portions of cachedhcp.c that can be shared between BIOS
and UEFI (both of which can provide a buffer containing a previously
obtained DHCP packet, and neither of which provide a means to
determine the length of this DHCP packet).

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-02-17 15:59:52 +00:00
parent 19d0fab40f
commit 057674bb1f
4 changed files with 110 additions and 37 deletions
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17
src/include/ipxe/cachedhcp.h Normal file
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@@ -0,0 +1,17 @@
#ifndef _IPXE_CACHEDHCP_H
#define _IPXE_CACHEDHCP_H
/** @file
*
* Cached DHCP packet
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <stddef.h>
#include <ipxe/uaccess.h>
extern int cachedhcp_record ( userptr_t data, size_t max_len );
#endif /* _IPXE_CACHEDHCP_H */

1
src/include/ipxe/errfile.h
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@@ -76,6 +76,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#define ERRFILE_dummy_sanboot ( ERRFILE_CORE | 0x00240000 )
#define ERRFILE_fdt ( ERRFILE_CORE | 0x00250000 )
#define ERRFILE_dma ( ERRFILE_CORE | 0x00260000 )
#define ERRFILE_cachedhcp ( ERRFILE_CORE | 0x00270000 )
#define ERRFILE_eisa ( ERRFILE_DRIVER | 0x00000000 )
#define ERRFILE_isa ( ERRFILE_DRIVER | 0x00010000 )