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afc571b1a6
The vectx API, computes the hash for verifying a file as it is read. This avoids the overhead of reading files twice - once to verify, then again to load. For doing an install via loader, avoiding the need to rewind large files is critical. This API is only used for modules, kernel and mdimage as these are the biggest files read by the loader. The reduction in boot time depends on how expensive the I/O is on any given platform. On a fast VM we see 6% improvement. For install via loader the first file to be verified is likely to be the kernel, so some of the prep work (finding manifest etc) done by verify_file() needs to be factored so it can be reused for vectx_open(). For missing or unrecognized fingerprint entries, we fail in vectx_open() unless verifying is disabled. Otherwise fingerprint check happens in vectx_close() and since this API is only used for files which must be verified (VE_MUST) we panic if we get an incorrect hash. Reviewed by: imp,tsoome MFC after: 1 week Sponsored by: Juniper Networks Differential Revision: https://reviews.freebsd.org//D23827
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/*-
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* Copyright (C) 2000 Benno Rice.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY Benno Rice ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include "openfirm.h"
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#include <readin.h>
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struct ofw_devdesc {
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struct devdesc dd;
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union {
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struct {
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ihandle_t d_handle;
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char d_path[256];
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};
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struct {
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uint64_t pool_guid;
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uint64_t root_guid;
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};
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};
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};
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extern int ofw_getdev(void **vdev, const char *devspec, const char **path);
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extern ev_sethook_t ofw_setcurrdev;
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extern struct devsw ofwdisk;
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extern struct netif_driver ofwnet;
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int ofwn_getunit(const char *);
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ssize_t ofw_copyin(const void *src, vm_offset_t dest, const size_t len);
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ssize_t ofw_copyout(const vm_offset_t src, void *dest, const size_t len);
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ssize_t ofw_readin(readin_handle_t fd, vm_offset_t dest, const size_t len);
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extern int ofw_boot(void);
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extern int ofw_autoload(void);
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void ofw_memmap(int);
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struct preloaded_file;
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struct file_format;
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/* MD code implementing MI interfaces */
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vm_offset_t md_load(char *args, vm_offset_t *modulep, vm_offset_t *dtb);
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vm_offset_t md_load64(char *args, vm_offset_t *modulep, vm_offset_t *dtb);
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extern void reboot(void);
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struct ofw_reg
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{
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cell_t base;
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cell_t size;
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};
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struct ofw_reg2
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{
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cell_t base_hi;
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cell_t base_lo;
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cell_t size;
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};
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extern int (*openfirmware)(void *);
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