/* *	$Id: filter.c,v 1.1 1999/01/22 21:05:22 mj Exp $ * *	Linux PCI Library -- Device Filtering * *	Copyright (c) 1998--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz> * *	Can be freely distributed and used under the terms of the GNU GPL. */#include <stdlib.h>#include <string.h>#include "internal.h"voidpci_filter_init(struct pci_access * UNUSED a, struct pci_filter *f){  f->bus = f->slot = f->func = -1;  f->vendor = f->device = -1;}/* Slot filter syntax: [[bus]:][slot][.[func]] */char *pci_filter_parse_slot(struct pci_filter *f, char *str){  char *colon = strchr(str, ':');  char *dot = strchr((colon ? colon + 1 : str), '.');  char *mid = str;  char *e;  if (colon)    {      *colon++ = 0;      mid = colon;      if (str[0] && strcmp(str, "*"))	{	  long int x = strtol(str, &e, 16);	  if ((e && *e) || (x < 0 || x >= 0xff))	    return "Invalid bus number";	  f->bus = x;	}    }  if (dot)    *dot++ = 0;  if (mid[0] && strcmp(mid, "*"))    {      long int x = strtol(mid, &e, 16);      if ((e && *e) || (x < 0 || x >= 0x1f))	return "Invalid slot number";      f->slot = x;    }  if (dot && dot[0] && strcmp(dot, "*"))    {      long int x = strtol(dot, &e, 16);      if ((e && *e) || (x < 0 || x >= 7))	return "Invalid function number";      f->func = x;    }  return NULL;}/* ID filter syntax: [vendor]:[device] */char *pci_filter_parse_id(struct pci_filter *f, char *str){  char *s, *e;  if (!*str)    return NULL;  s = strchr(str, ':');  if (!s)    return "':' expected";  *s++ = 0;  if (str[0] && strcmp(str, "*"))    {      long int x = strtol(str, &e, 16);      if ((e && *e) || (x < 0 || x >= 0xffff))	return "Invalid vendor ID";      f->vendor = x;    }  if (s[0] && strcmp(s, "*"))    {      long int x = strtol(s, &e, 16);      if ((e && *e) || (x < 0 || x >= 0xffff))	return "Invalid device ID";      f->device = x;    }  return NULL;}intpci_filter_match(struct pci_filter *f, struct pci_dev *d){  if ((f->bus >= 0 && f->bus != d->bus) ||      (f->slot >= 0 && f->slot != d->dev) ||      (f->func >= 0 && f->func != d->func))    return 0;  if (f->device >= 0 || f->vendor >= 0)    {      pci_fill_info(d, PCI_FILL_IDENT);      if ((f->device >= 0 && f->device != d->device_id) ||	  (f->vendor >= 0 && f->vendor != d->vendor_id))	return 0;    }  return 1;}