mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-10 09:42:26 +00:00
324 lines
7.9 KiB
C
324 lines
7.9 KiB
C
/***************************************************
|
|
* file: userconfig/uc_main.c
|
|
*
|
|
* Copyright (c) 1996 Eric L. Hernes (erich@rrnet.com)
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software withough specific prior written permission
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* library functions for userconfig library
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <paths.h>
|
|
#include <sys/mman.h>
|
|
#include <nlist.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "uc_main.h"
|
|
#include "sysinstall.h"
|
|
|
|
static struct nlist _nl[] = {
|
|
{"_isa_devtab_bio"},
|
|
{"_isa_devtab_tty"},
|
|
{"_isa_devtab_net"},
|
|
{"_isa_devtab_null"},
|
|
{"_isa_biotab_wdc"},
|
|
{"_isa_biotab_fdc"},
|
|
{"_eisadriver_set"},
|
|
{"_eisa_dev_list"},
|
|
{"_pcidevice_set"},
|
|
{"_device_list"},
|
|
{"_scbusses"},
|
|
{"_scsi_cinit"},
|
|
{"_scsi_dinit"},
|
|
{"_scsi_tinit"},
|
|
{""},
|
|
};
|
|
|
|
struct kernel *
|
|
uc_open(char *name){
|
|
int kd, flags, incore;
|
|
struct kernel *kern;
|
|
struct stat sb;
|
|
char kname[80];
|
|
int size, i = 0;
|
|
struct nlist *nl = _nl;
|
|
|
|
if (strcmp(name, "-incore") == 0)
|
|
incore = 1;
|
|
else
|
|
incore = 0;
|
|
|
|
if (incore || (strcmp(name,"-bootfile") == 0))
|
|
SAFE_STRCPY(kname, getbootfile());
|
|
else
|
|
SAFE_STRCPY(kname, name);
|
|
|
|
if (isDebug())
|
|
msgDebug("uc_open: kernel name is %s, incore = %d\n", kname, incore);
|
|
kern = (struct kernel *)malloc(sizeof(struct kernel));
|
|
|
|
#ifdef KERN_NO_SYMBOLS
|
|
if (incore) {
|
|
FILE *fp;
|
|
|
|
fp = fopen("/stand/symbols", "r");
|
|
if (!fp) {
|
|
msgDebug("Couldn't open /stand/symbols file! Punting.\n");
|
|
free(kern);
|
|
return NULL;
|
|
}
|
|
if (fscanf(fp, "%d\n", &size) != 1) {
|
|
msgDebug("Unable to get # of name list entries from symbol file.\n");
|
|
free(kern);
|
|
return NULL;
|
|
}
|
|
else if (isDebug())
|
|
msgDebug("uc_open: opened /stand/symbols file, reading %d entries.\n", size);
|
|
|
|
|
|
kern->nl = nl = (struct nlist *)malloc((size + 1) * sizeof(struct nlist));
|
|
bzero(nl, (size + 1) * sizeof(struct nlist));
|
|
for (i = 0; i < size; i++) {
|
|
char *cp, name[255];
|
|
int c1;
|
|
unsigned int uc1;
|
|
short d1;
|
|
unsigned long v1;
|
|
|
|
if (fgets(name, 255, fp) == NULL) {
|
|
msgDebug("Can't get name field for entry %d\n", i);
|
|
free(kern);
|
|
return NULL;
|
|
}
|
|
if ((cp = index(name, '\n')) != NULL)
|
|
*cp = '\0';
|
|
nl[i].n_name = strdup(name);
|
|
if (fscanf(fp, "%u %d %hd %ld\n", &uc1, &c1, &d1, &v1) == 4) {
|
|
nl[i].n_type = (unsigned char)uc1;
|
|
nl[i].n_other = (char)c1;
|
|
nl[i].n_desc = d1;
|
|
nl[i].n_value = v1;
|
|
if (isDebug())
|
|
msgDebug("uc_open: for entry %d, decoded: \"%s\", %u %d %hd %ld\n", i, nl[i].n_name, nl[i].n_type, nl[i].n_other, nl[i].n_desc, nl[i].n_value);
|
|
}
|
|
}
|
|
nl[i].n_name = "";
|
|
fclose(fp);
|
|
i = 0;
|
|
}
|
|
else
|
|
#endif
|
|
i = nlist(kname, nl);
|
|
if (i == -1) {
|
|
msgDebug("uc_open: kernel %s does not contain symbols.\n", kname);
|
|
free(kern);
|
|
return NULL;
|
|
}
|
|
#ifdef KERN_NO_SYMBOLS
|
|
if (!incore) {
|
|
#else
|
|
{
|
|
#endif
|
|
kern->nl=(struct nlist *)malloc(sizeof(_nl));
|
|
bcopy(_nl, kern->nl, sizeof(_nl));
|
|
}
|
|
|
|
if (incore) {
|
|
if (isDebug())
|
|
msgDebug("uc_open: attempting to open /dev/kmem for incore.\n");
|
|
if ((kd = open("/dev/kmem", O_RDONLY)) < 0) {
|
|
free(kern);
|
|
msgDebug("uc_open: Unable to open /dev/kmem.\n");
|
|
return NULL;
|
|
}
|
|
kern->core = (caddr_t)NULL;
|
|
kern->incore = 1;
|
|
kern->size = 0;
|
|
}
|
|
else {
|
|
if (stat(kname, &sb) < 0) {
|
|
free(kern);
|
|
msgDebug("uc_open: Unable to stat %s.\n", kname);
|
|
return NULL;
|
|
}
|
|
kern->size = sb.st_size;
|
|
flags = sb.st_flags;
|
|
|
|
if (chflags(kname, 0) < 0) {
|
|
free(kern);
|
|
msgDebug("uc_open: Unable to chflags %s.\n", kname);
|
|
return NULL;
|
|
}
|
|
|
|
if (isDebug())
|
|
msgDebug("uc_open: attempting to open %s\n", kname);
|
|
if ((kd = open(kname, O_RDWR, 0644)) < 0) {
|
|
free(kern);
|
|
msgDebug("uc_open: Unable to open %s.\n", kname);
|
|
return NULL;
|
|
}
|
|
|
|
fchflags(kd, flags);
|
|
|
|
if (isDebug())
|
|
msgDebug("uc_open: attempting to mmap %d bytes\n", sb.st_size);
|
|
kern->core = mmap((caddr_t)0, sb.st_size, PROT_READ | PROT_WRITE,
|
|
MAP_SHARED, kd, 0);
|
|
kern->incore = 0;
|
|
if (kern->core == MAP_FAILED) {
|
|
free(kern);
|
|
msgDebug("uc_open: Unable to mmap from %s.\n", kname);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
kern->fd = kd;
|
|
get_isa_info(kern);
|
|
if (isDebug())
|
|
msgDebug("uc_open: got isa information\n");
|
|
|
|
get_pci_info(kern);
|
|
if (isDebug())
|
|
msgDebug("uc_open: got pci information\n");
|
|
|
|
get_eisa_info(kern);
|
|
if (isDebug())
|
|
msgDebug("uc_open: got eisa information\n");
|
|
#ifdef USE_SCSI
|
|
get_scsi_info(kern);
|
|
if (isDebug())
|
|
msgDebug("uc_open: got scsi information\n");
|
|
#else
|
|
kern->scsi_devp=(struct uc_scsi*)NULL;
|
|
kern->scsibus_devp=(struct uc_scsibus*)NULL;
|
|
#endif
|
|
return kern;
|
|
}
|
|
|
|
int
|
|
uc_close(struct kernel *kern, int writeback)
|
|
{
|
|
if (kern->isa_devp)
|
|
isa_free(kern, writeback);
|
|
|
|
if (kern->eisa_devp)
|
|
eisa_free(kern, writeback); /* `writeback' isn't really useful here */
|
|
|
|
if (kern->pci_devp)
|
|
pci_free(kern, writeback); /* or here */
|
|
|
|
if (kern->scsi_devp)
|
|
scsi_free(kern, writeback);
|
|
|
|
if (!kern->incore)
|
|
munmap(kern->core, kern->size);
|
|
|
|
close(kern->fd);
|
|
free(kern->nl);
|
|
free(kern);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct list *
|
|
uc_getdev(struct kernel *kern, char *dev)
|
|
{
|
|
struct list *list = (struct list *)0;
|
|
|
|
if (*dev == '-') { /* asked for -isa, -eisa, -pci, -scsi, -all */
|
|
if (strcmp(dev, "-all") == 0) {
|
|
list = list_new();
|
|
if (kern->isa_devp)
|
|
list_append(list, "isa");
|
|
|
|
if (kern->eisa_devp)
|
|
list_append(list, "eisa");
|
|
|
|
if (kern->pci_devp)
|
|
list_append(list, "pci");
|
|
|
|
if (kern->scsi_devp)
|
|
list_append(list, "scsi");
|
|
|
|
}
|
|
else if (strcmp(dev, "-isa") == 0)
|
|
list = get_isa_devlist(kern);
|
|
else if (strcmp(dev, "-eisa") == 0)
|
|
list = get_eisa_devlist(kern);
|
|
else if (strcmp(dev, "-pci") == 0)
|
|
list = get_pci_devlist(kern);
|
|
else if (strcmp(dev, "-scsi") == 0)
|
|
list = get_scsi_devlist(kern);
|
|
}
|
|
else {
|
|
/* we gotta figure out which real device to report */
|
|
struct uc_isa *ip;
|
|
struct uc_scsi *sp;
|
|
struct uc_pci *pp;
|
|
struct uc_eisa *ep;
|
|
|
|
if (kern->isa_devp) {
|
|
for (ip = kern->isa_devp; ip->device; ip++) {
|
|
if (strcmp(dev, ip->device) == 0) {
|
|
list = get_isa_device(ip);
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (kern->scsi_devp) {
|
|
for (sp = kern->scsi_devp; sp->device; sp++) {
|
|
if (strcmp(dev, sp->device) == 0) {
|
|
list = get_scsi_device(sp);
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (kern->pci_devp) {
|
|
for(pp = kern->pci_devp; pp->device; pp++) {
|
|
if (strcmp(dev, pp->device) == 0) {
|
|
list = get_pci_device(pp);
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (kern->eisa_devp) {
|
|
for (ep = kern->eisa_devp; ep->device; ep++) {
|
|
if (strcmp(dev, ep->device) == 0) {
|
|
list = get_eisa_device(ep);
|
|
goto end;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
end:
|
|
return(list);
|
|
}
|