657 lines
16 KiB
C
657 lines
16 KiB
C
/*
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* Guillaume Cottenceau (gc@mandrakesoft.com)
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*
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* Copyright 2000 MandrakeSoft
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*
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* This software may be freely redistributed under the terms of the GNU
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* public license.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/*
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* Portions from Erik Troan (ewt@redhat.com)
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*
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* Copyright 1996 Red Hat Software
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*
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*/
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/*
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* This contains stuff related to probing:
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* (1) any (actually only SCSI, NET, CPQ, USB Controllers) devices (autoprobe for PCI and USB)
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* (2) IDE media
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* (3) SCSI media
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* (4) ETH devices
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*/
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#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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// #include <sys/socket.h>
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#include <net/if.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include <dirent.h>
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#include "stage1.h"
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#include "log.h"
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#include "frontend.h"
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#include "modules.h"
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#include "probing.h"
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struct media_info {
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char * name;
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char * model;
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enum media_type type;
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};
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struct pci_module_map {
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unsigned short vendor; /* PCI vendor id */
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unsigned short device; /* PCI device id */
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char * module; /* module to load */
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struct pci_module_map * next;
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};
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struct usb_module_map {
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unsigned short vendor; /* PCI vendor id */
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unsigned short device; /* PCI device id */
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char * module; /* module to load */
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struct usb_module_map * next;
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};
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char *usb_hcd[] = {
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"uhci-hcd",
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"ohci-hcd",
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"ehci-hcd",
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};
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#define HCD_NUM (sizeof(usb_hcd) / sizeof(char *))
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static void warning_insmod_failed(enum insmod_return r)
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{
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if (IS_AUTOMATIC && r == INSMOD_FAILED_FILE_NOT_FOUND)
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return;
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if (r != INSMOD_OK) {
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if (r == INSMOD_FAILED_FILE_NOT_FOUND)
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stg1_error_message("This floppy doesn't contain the driver.");
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else
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stg1_error_message("Warning, installation of driver failed. (please include msg from <Alt-F3> for bugreports)");
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}
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}
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#ifndef DISABLE_NETWORK
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struct net_description_elem
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{
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char * intf_name;
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char * intf_description;
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};
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static struct net_description_elem net_descriptions[50];
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static int net_descr_number = 0;
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static char * intf_descr_for_discover = NULL;
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static char * net_intf_too_early_name[50]; /* for modules providing more than one net intf */
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static int net_intf_too_early_number = 0;
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static int net_intf_too_early_ptr = 0;
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void prepare_intf_descr(const char * intf_descr)
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{
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intf_descr_for_discover = strdup(intf_descr);
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}
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void net_discovered_interface(char * intf_name)
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{
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if (!intf_descr_for_discover) {
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net_intf_too_early_name[net_intf_too_early_number++] = strdup(intf_name);
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return;
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}
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if (!intf_name) {
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if (net_intf_too_early_ptr >= net_intf_too_early_number) {
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log_message("NET: was expecting another network interface (broken net module?)");
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return;
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}
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net_descriptions[net_descr_number].intf_name = net_intf_too_early_name[net_intf_too_early_ptr++];
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}
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else
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net_descriptions[net_descr_number].intf_name = strdup(intf_name);
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net_descriptions[net_descr_number].intf_description = strdup(intf_descr_for_discover);
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intf_descr_for_discover = NULL;
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net_descr_number++;
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}
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char * get_net_intf_description(char * intf_name)
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{
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int i;
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for (i = 0; i < net_descr_number ; i++)
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if (!strcmp(net_descriptions[i].intf_name, intf_name))
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return net_descriptions[i].intf_description;
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return strdup("unknown");
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}
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#endif
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static struct pci_module_map * get_pci_ids()
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{
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static struct pci_module_map * pcidb = NULL;
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struct pci_module_map * last, *new;
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char buf[50];
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int v, d;
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FILE *f;
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if (pcidb) return pcidb;
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log_message("loading pcimap file");
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if (!(f = fopen("/modules/modules.map", "rb"))) {
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log_message("couldn't open pcimap file");
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return NULL;
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}
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while (3 == (fscanf(f, "%x %x %48s", &v, &d, buf))) {
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new = (struct pci_module_map *)malloc(sizeof(*pcidb));
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new->vendor = v;
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new->device = d;
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new->module = strdup(buf);
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new->next = NULL;
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if (!pcidb) {
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pcidb = last = new;
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} else {
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last->next = new;
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last = new;
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}
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}
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fclose(f);
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return pcidb;
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}
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/* forward */
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static void probe_that_type(enum driver_type type);
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/* ---- PCI probe ---------------------------------------------- */
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static void pci_probe(enum driver_type type)
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{
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FILE * f;
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int n;
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char buf[200];
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char devname[22];
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u_int8_t devdata[48];
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static int need_usb_hcd[HCD_NUM];
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struct pci_module_map * pci_ids = NULL;
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int that_class;
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switch (type) {
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case SCSI_ADAPTERS:
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that_class = PCI_CLASS_STORAGE_SCSI << 8;
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break;
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case IDE_ADAPTERS:
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that_class = PCI_CLASS_STORAGE_IDE << 8;
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break;
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case RAID_ADAPTERS:
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that_class = PCI_CLASS_STORAGE_RAID << 8;
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break;
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case NETWORK_DEVICES:
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that_class = PCI_CLASS_NETWORK_ETHERNET << 8;
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break;
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case BRIDGE_OTHER:
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that_class = PCI_CLASS_BRIDGE_OTHER << 8;
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break;
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case USB_CONTROLLERS:
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that_class = PCI_CLASS_SERIAL_USB << 8;
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break;
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default:
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return;
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}
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if (NULL == (pci_ids = get_pci_ids())) {
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log_message("PCI: could not get pci ids");
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return;
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}
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if (!(f = fopen("/proc/bus/pci/devices", "r"))) {
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log_message("PCI: could not open proc file");
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return;
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}
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while (NULL != fgets(buf, sizeof(buf), f)) {
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int i, matched, dfn, vendor, device, class, subv, subid;
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struct pci_module_map * pcidb;
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sscanf(buf, "%x %x", &dfn, &vendor);
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device = vendor & 0xFFFF; /* because scanf from dietlibc does not support %4f */
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vendor = (vendor >> 16) & 0xFFFF;
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snprintf(devname, sizeof(devname), "/proc/bus/pci/%02x/%02x.%x",
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dfn >> 8, PCI_SLOT(dfn & 0xff), PCI_FUNC(dfn & 0xff));
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log_message("gathering info for %s", devname);
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if ((i = open(devname, O_RDONLY)) != -1) {
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read(i, devdata, sizeof(devdata));
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close(i);
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} else continue;
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class = devdata[9] | (devdata[10] << 8) | (devdata[11] << 16);
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subv = devdata[0x2c] | (devdata[0x2d] << 8);
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subid = devdata[0x2e] | (devdata[0x2f] << 8);
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if (that_class != (class & 0xffff00)) continue;
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log_message("found pci device: %04x %04x %06x %04x %04x",
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vendor, device, class, subv, subid);
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for (matched = 0, pcidb = pci_ids; pcidb; pcidb = pcidb->next) {
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if (pcidb->vendor == vendor && pcidb->device == device) {
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/* vendor & device matched */
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log_message("(pcimap) module is \"%s\"", pcidb->module);
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#ifndef DISABLE_MEDIAS
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if (type == IDE_ADAPTERS || type == SCSI_ADAPTERS || type == RAID_ADAPTERS) {
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int wait_msg = 0;
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enum insmod_return failed;
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if (IS_AUTOMATIC) {
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wait_message("Loading driver for storage adapter: %s", pcidb->module);
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wait_msg = 1;
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} else
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stg1_info_message("About to load driver for storage adapter: %s", pcidb->module);
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failed = my_insmod(pcidb->module, type, NULL);
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if (wait_msg)
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remove_wait_message();
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warning_insmod_failed(failed);
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}
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#endif /* DISABLE_MEDIAS */
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#ifndef DISABLE_NETWORK
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if (type == NETWORK_DEVICES || type == BRIDGE_OTHER) {
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int wait_msg = 0;
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enum insmod_return failed;
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if (IS_AUTOMATIC) {
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wait_message("Loading driver for network device: %s", pcidb->module);
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wait_msg = 1;
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} else
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stg1_info_message("About to load driver for network device: %s",
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pcidb->module);
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prepare_intf_descr(pcidb->module);
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failed = my_insmod(pcidb->module, type, NULL);
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if (wait_msg)
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remove_wait_message();
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warning_insmod_failed(failed);
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if (intf_descr_for_discover) /* for modules providing more than one net intf */
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net_discovered_interface(NULL);
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}
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#endif /* DISABLE_NETWORK */
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if (type == USB_CONTROLLERS) {
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/* found explicitly declared module */
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for (i=0; i < HCD_NUM; i++) {
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if(ptr_begins_static_str(pcidb->module, usb_hcd[i])) {
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need_usb_hcd[i] = 1;
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break;
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}
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}
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}
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matched = 1;
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break;
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}
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} /* end of pcidb table */
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#ifndef DISABLE_MEDIAS
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if (!matched && type == IDE_ADAPTERS) {
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/* probe ide-generic as last resort */
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log_message("(guess) module is \"ide-generic\"");
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int wait_msg = 0;
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enum insmod_return failed;
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if (IS_AUTOMATIC) {
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wait_message("Loading driver for IDE adapter: ide-generic");
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wait_msg = 1;
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} else
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stg1_info_message("About to load driver for IDE adapter: ide-generic");
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failed = my_insmod("ide-generic", type, NULL);
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if (wait_msg)
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remove_wait_message();
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warning_insmod_failed(failed);
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}
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#endif /* DISABLE_MEDIAS */
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if (!matched && type == USB_CONTROLLERS && (class & 0xffff0f) == 0x0c0300) {
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/* no module found, trying to identify one by class:
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HCD: PCI Class:
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uhci-hcd 0x000c0300
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ohci-hcd 0x000c0310
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ehci-hcd 0x000c0320
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*/
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log_message("(guess) module is \"%s\"", usb_hcd[(class & 0xf0)>>4]);
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need_usb_hcd[(class & 0xf0)>>4] = 1;
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}
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} /* end of this vendor & device */
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fclose(f);
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/* load all usb controller modules now, starting from possible ehci-hcd */
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/* to prevent case when old-timed module sitting on newer host controller */
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if (type == USB_CONTROLLERS) {
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enum insmod_return failed;
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for (n=HCD_NUM-1; n >= 0; n--) {
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if (need_usb_hcd[n]) {
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/* do it AUTOMATIC -- for usb kbd case */
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/* and ever silent
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wait_message("Loading driver for USB controller: %s", usb_hcd[n]);
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*/
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failed = my_insmod(usb_hcd[n], USB_CONTROLLERS, NULL);
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/*
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remove_wait_message();
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*/
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warning_insmod_failed(failed);
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}
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}
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}
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}
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/* ---- USB probe ---------------------------------------------- */
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static void usb_probe(enum driver_type type)
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{
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static int already_probed_usb_controllers = 0;
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static int already_mounted_usbdev = 0;
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static int already_probed_hid = 0;
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FILE * f;
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char buf[200];
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static struct usb_module_map * usb_ids = NULL;
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switch (type) {
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#ifdef ENABLE_USBNET
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case NETWORK_DEVICES:
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#endif
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case MEDIA_ADAPTERS:
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case HID_DEVICES:
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break;
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default:
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return;
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}
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if (!already_probed_usb_controllers) {
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already_probed_usb_controllers = 1;
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probe_that_type(USB_CONTROLLERS);
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}
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if (!already_mounted_usbdev) {
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already_mounted_usbdev = 1;
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if (mount("/proc/bus/usb", "/proc/bus/usb", "usbfs", 0, NULL)) {
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log_message("USB: couldn't mount /proc/bus/usb");
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return;
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}
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/* no need to show wait message -- we're doing this very first
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wait_message("Waiting for USB stuff to show up.");
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*/
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sleep(2); /* sucking background work */
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/*
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remove_wait_message();
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*/
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}
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/* dirty hacks */
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if (type == MEDIA_ADAPTERS) {
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stg1_info_message("About to load driver for usb storage device: usb-storage");
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my_insmod("usb-storage", ANY_DRIVER_TYPE, NULL);
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sleep(5); /* wait for dust settles down */
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}
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#ifdef ENABLE_USBNET
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if (type == NETWORK_DEVICES) {
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stg1_info_message("About to load driver for usb network device: usbnet");
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my_insmod("usbnet", ANY_DRIVER_TYPE, NULL);
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}
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#endif
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if (!(f = fopen("/proc/bus/usb/devices", "r"))) {
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log_message("USB: could not open proc file");
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return;
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}
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if (type == HID_DEVICES && !already_probed_hid) {
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while (NULL != fgets(buf, sizeof(buf), f)) {
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if (strstr(buf, "Cls=03")) {
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my_insmod("usbhid", ANY_DRIVER_TYPE, NULL);
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already_probed_hid = 1;
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break;
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}
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}
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}
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fclose(f);
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}
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static void probe_that_type(enum driver_type type)
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{
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if (IS_EXPERT) {
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ask_insmod(type);
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return;
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}
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if (type == MEDIA_ADAPTERS) {
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update_splash();
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pci_probe(IDE_ADAPTERS);
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update_splash();
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pci_probe(SCSI_ADAPTERS);
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update_splash();
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pci_probe(RAID_ADAPTERS);
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update_splash();
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usb_probe(MEDIA_ADAPTERS);
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update_splash();
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} else {
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update_splash();
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pci_probe(type);
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update_splash();
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usb_probe(type);
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update_splash();
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}
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}
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#ifndef DISABLE_MEDIAS
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static struct media_info * medias = NULL;
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static void find_media(void)
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{
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FILE *f;
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DIR *dir = NULL;
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struct dirent *dirent = NULL;
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struct stat st;
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struct media_info tmp[50];
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char path[SYSFS_PATH_MAX];
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char buf[512];
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char *s;
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int count = 0;
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if (!medias)
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probe_that_type(MEDIA_ADAPTERS);
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else
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free(medias); /* that does not free the strings, by the way */
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if ((dir = opendir("/sys/block")) == NULL) {
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log_message("failed to open /sys/block directory");
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return;
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}
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while ((dirent = readdir(dir)) != NULL) {
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if (!strcmp(dirent->d_name, ".") ||
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!strcmp(dirent->d_name, "..")) continue;
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memset(path, 0, SYSFS_PATH_MAX);
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strcpy(path, "/sys/block/");
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strcat(path, dirent->d_name);
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s = path + strlen(path);
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/* probe for scsi type */
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strcat(path, "/device/type");
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if (lstat(path, &st) == 0 && S_ISREG(st.st_mode)) {
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tmp[count].name = strdup(dirent->d_name);
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tmp[count].type = UNKNOWN_MEDIA;
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if ((f = fopen(path, "r")) != NULL) {
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int type;
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if (fscanf(f, "%d", &type)) {
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if (type == SCSI_TYPE_DISK) tmp[count].type = DISK;
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else if (type == SCSI_TYPE_ROM) tmp[count].type = CDROM;
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else if (type == SCSI_TYPE_TAPE) tmp[count].type = TAPE;
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}
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fclose(f);
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}
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*s = 0;
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strcat(path, "/device/model");
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if ((f = fopen(path, "r")) != NULL) {
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if (fgets(buf, sizeof(buf), f)) {
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tmp[count].model = strdup(buf);
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}
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fclose(f);
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} else {
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tmp[count].model = strdup("(unknown)");
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}
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log_message("SCSI/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
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count++;
|
|
continue;
|
|
}
|
|
|
|
/* assume ide */
|
|
*s = 0;
|
|
strcat(s, "/device/media");
|
|
if (lstat(path, &st) == 0 && S_ISREG(st.st_mode)) {
|
|
tmp[count].name = strdup(dirent->d_name);
|
|
tmp[count].type = UNKNOWN_MEDIA;
|
|
log_message("IDE: name: %s", dirent->d_name);
|
|
if ((f = fopen(path, "r")) != NULL) {
|
|
if (fgets(buf, sizeof(buf), f)) {
|
|
log_message("IDE: type: %s", buf);
|
|
if (!strncmp("disk", buf, 4))
|
|
tmp[count].type = DISK;
|
|
else if (!strncmp("cdrom", buf, 5))
|
|
tmp[count].type = CDROM;
|
|
else if (!strncmp("tape", buf, 4))
|
|
tmp[count].type = TAPE;
|
|
else if (!strncmp("floppy", buf, 6))
|
|
tmp[count].type = FLOPPY;
|
|
}
|
|
fclose(f);
|
|
}
|
|
|
|
/* grab model */
|
|
strcpy(path, "/proc/ide/");
|
|
strcat(path, dirent->d_name);
|
|
strcat(path, "/model");
|
|
if ((f = fopen(path, "r")) != NULL) {
|
|
if (fgets(buf, sizeof(buf), f)) {
|
|
tmp[count].model = strdup(buf);
|
|
}
|
|
fclose(f);
|
|
} else {
|
|
tmp[count].model = strdup("(none)");
|
|
}
|
|
log_message("IDE/%d: %s is a %s", tmp[count].type, tmp[count].name, tmp[count].model);
|
|
count++;
|
|
}
|
|
}
|
|
|
|
closedir(dir);
|
|
|
|
tmp[count].name = NULL;
|
|
count++;
|
|
medias = memdup(tmp, sizeof(struct media_info) * count);
|
|
}
|
|
|
|
/* Finds by media */
|
|
void get_medias(enum media_type media, char *** names, char *** models)
|
|
{
|
|
struct media_info * m;
|
|
char * tmp_names[50];
|
|
char * tmp_models[50];
|
|
int count;
|
|
|
|
find_media();
|
|
|
|
m = medias;
|
|
|
|
count = 0;
|
|
while (m && m->name) {
|
|
if (m->type == media) {
|
|
tmp_names[count] = strdup(m->name);
|
|
tmp_models[count++] = strdup(m->model);
|
|
}
|
|
m++;
|
|
}
|
|
tmp_names[count] = NULL;
|
|
tmp_models[count++] = NULL;
|
|
|
|
*names = memdup(tmp_names, sizeof(char *) * count);
|
|
*models = memdup(tmp_models, sizeof(char *) * count);
|
|
}
|
|
#endif /* DISABLE_MEDIAS */
|
|
|
|
void probe_hiddev()
|
|
{
|
|
usb_probe(HID_DEVICES);
|
|
}
|
|
|
|
#ifndef DISABLE_NETWORK
|
|
int net_device_available(char * device)
|
|
{
|
|
struct ifreq req;
|
|
int s;
|
|
|
|
s = socket(AF_INET, SOCK_DGRAM, 0);
|
|
if (s < 0) {
|
|
log_perror(device);
|
|
return 0;
|
|
}
|
|
strcpy(req.ifr_name, device);
|
|
if (ioctl(s, SIOCGIFFLAGS, &req)) {
|
|
/* if we can't get the flags, the networking device isn't available */
|
|
close(s);
|
|
return 0;
|
|
}
|
|
close(s);
|
|
return 1;
|
|
}
|
|
|
|
|
|
char ** get_net_devices(void)
|
|
{
|
|
char * devices[] = {
|
|
"eth0", "eth1", "eth2", "eth3", "eth4", "eth5",
|
|
"tr0",
|
|
"plip0", "plip1", "plip2",
|
|
"fddi0",
|
|
#ifdef ENABLE_USBNET
|
|
"usb0", "usb1", "usb2", "usb3",
|
|
#endif
|
|
NULL
|
|
};
|
|
char ** ptr = devices;
|
|
char * tmp[50];
|
|
int i = 0;
|
|
static int already_probed = 0;
|
|
|
|
if (!already_probed) {
|
|
already_probed = 1; /* cut off loop brought by: probe_that_type => my_insmod => get_net_devices */
|
|
probe_that_type(NETWORK_DEVICES);
|
|
/* for some chipsets having nic in it, i.e. nForcex */
|
|
probe_that_type(BRIDGE_OTHER);
|
|
}
|
|
|
|
while (ptr && *ptr) {
|
|
if (net_device_available(*ptr))
|
|
tmp[i++] = strdup(*ptr);
|
|
ptr++;
|
|
}
|
|
tmp[i++] = NULL;
|
|
|
|
return memdup(tmp, sizeof(char *) * i);
|
|
}
|
|
#endif /* DISABLE_NETWORK */
|