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1fb859729e
When installing a boot record for "ipl" and "menu" job, always add an environment block as a boot component located in bootmap file at offset alinged on file system block size boundary. When adding, first try to import environment from a file at location specified by newly introduced "--environment" zipl option, or by default at "/etc/ziplenv". If nothing was imported, then add a blank environment block. Optionally print the content of the environment block. Store environment block size and address (as of boot component) in stage3_parms. Change interface of add_ipl_program(): add 2 additional arguments: a pointer to bootmap file name and a predicate indicating if we need to add environment block as a boot component. Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/*
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* s390-tools/zipl/include/bootmap.h
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* Functions to build the bootmap file.
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*
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* Copyright IBM Corp. 2001, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*
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*/
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#ifndef BOOTMAP_H
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#define BOOTMAP_H
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#include "lib/zt_common.h"
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#include "disk.h"
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#include "job.h"
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#include "zipl.h"
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#include "stddef.h"
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#define BOOTMAP_HEADER_VERSION 1
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#define SIGNATURE_MAGIC "~Module signature appended~\n"
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#define PKCS7_FORMAT 0x01
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struct bootmap_header {
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char header_text[48];
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u64 version;
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u64 envblk_offset;
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char reserved[448];
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};
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struct signature_header {
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uint8_t format;
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uint8_t reserved[3];
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uint32_t length;
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} __packed;
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typedef union {
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uint64_t load_address;
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uint64_t load_psw;
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struct signature_header sig_head;
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} component_data;
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/*
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* The file_signature structure and the PKEY_ID definition
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* are based on linux/scripts/sign-file.c
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*/
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struct file_signature {
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u8 algorithm;
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u8 hash;
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u8 id_type;
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u8 signer_len;
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u8 key_id_len;
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u8 __pad[3];
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u32 sig_len;
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char magic[28];
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};
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#define PKEY_ID_PKCS7 0x02
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int bootmap_header_init(int fd);
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int bootmap_header_read(int fd, struct bootmap_header *bh);
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int bootmap_header_write(int fd, struct bootmap_header *bh);
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int bootmap_create(struct job_data* job, disk_blockptr_t* program_table,
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disk_blockptr_t *scsi_dump_sb_blockptr,
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disk_blockptr_t** stage2_list, blocknum_t* stage2_count,
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char** device, struct disk_info** new_info);
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void bootmap_store_blockptr(void* buffer, disk_blockptr_t* ptr,
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struct disk_info* info);
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#endif /* if not BOOTMAP_H */
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