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bbbe503ec1
Here is a patch to change the netdev handling in the database and for the dev.d/ calls. I applies on top of the udevd.patch, cause klibc has no sysinfo(). o netdev's are also put into our database now. I want this for the udevruler gui to get a list of all handled devices. All devices in the db are stamped with the system uptime value at the creation time. 'udevinfo -d' prints it. o the DEVPATH value is the key for udevdb, but if we rename a netdev, the name is replaced in the kernel, so we add the changed name to the db to match with the remove event. NOTE: The dev.d/ scripts still get the original name from the hotplug call. Should we replace DEVPATH with the new name too? o We now only add a device to the db, if we have successfully created the main node or successfully renamed a netdev. This is the main part of the patch, cause I needed to clean the retval passing trough all the functions used for node creation. o DEVNODE sounds a bit ugly for netdev's so I exported DEVNAME too. Can we change the name? o I've added a UDEV_NO_DEVD to possibly skip the script execution and used it in udev-test.pl. udevstart is the same horror now, if you have scripts with logging statements in dev.d/ it takes minutes to finish, can we skip the scripts here too? o The get_device_type() function is changed to be more strict, cause 'udevinfo -a -p /block/' gets a class device for it and tries to print the major/minor values. o bugfix, the RESULT value has now a working newline removal and a test for this case.
93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*
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* dev_d.c - dev.d/ multiplexer
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*
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* Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*/
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/*
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* This essentially emulates the following shell script logic in C:
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* DIR="/etc/dev.d"
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* export DEVNODE="whatever_dev_name_udev_just_gave"
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* for I in "${DIR}/$DEVNODE/"*.dev "${DIR}/$1/"*.dev "${DIR}/default/"*.dev ; do
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* if [ -f $I ]; then $I $1 ; fi
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* done
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* exit 1;
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#include "udev.h"
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#include "udev_lib.h"
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#include "logging.h"
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#define DEVD_DIR "/etc/dev.d/"
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#define DEVD_SUFFIX ".dev"
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static int run_program(char *name)
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{
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pid_t pid;
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dbg("running %s", name);
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pid = fork();
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switch (pid) {
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case 0:
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/* child */
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execv(name, main_argv);
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dbg("exec of child failed");
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exit(1);
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case -1:
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dbg("fork of child failed");
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break;
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return -1;
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default:
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wait(NULL);
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}
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return 0;
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}
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/*
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* runs files in these directories in order:
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* <node name given by udev>/
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* subsystem/
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* default/
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*/
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void dev_d_send(struct udevice *dev, char *subsystem)
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{
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char dirname[256];
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char devname[NAME_SIZE];
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if (udev_dev_d == 0)
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return;
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if (dev->type == 'b' || dev->type == 'c') {
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strfieldcpy(devname, udev_root);
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strfieldcat(devname, dev->name);
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} else if (dev->type == 'n') {
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strfieldcpy(devname, dev->name);
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}
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setenv("DEVNODE", devname, 1); /* FIXME: bad name for netif */
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setenv("DEVNAME", devname, 1);
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dbg("DEVNAME='%s'", devname);
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strcpy(dirname, DEVD_DIR);
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strfieldcat(dirname, dev->name);
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call_foreach_file(run_program, dirname, DEVD_SUFFIX);
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strcpy(dirname, DEVD_DIR);
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strfieldcat(dirname, subsystem);
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call_foreach_file(run_program, dirname, DEVD_SUFFIX);
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strcpy(dirname, DEVD_DIR "default");
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call_foreach_file(run_program, dirname, DEVD_SUFFIX);
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}
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