diff options
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | dev_d.c | 117 | ||||
| -rw-r--r-- | udev-add.c | 4 | ||||
| -rw-r--r-- | udev-remove.c | 1 | ||||
| -rw-r--r-- | udev.h | 1 |
5 files changed, 123 insertions, 1 deletions
@@ -209,6 +209,7 @@ OBJS = udev_lib.o \ udevdb.o \ namedev.o \ namedev_parse.o \ + dev_d.o \ $(SYSFS) \ $(TDB) diff --git a/dev_d.c b/dev_d.c new file mode 100644 index 0000000000..36bee33bd9 --- /dev/null +++ b/dev_d.c @@ -0,0 +1,117 @@ +/* + * dev.d multipleer + * + * Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation version 2 of the License. + * + * Based on the klibc version of hotplug written by: + * Author(s) Christian Borntraeger <cborntra@de.ibm.com> + * which was based on the shell script written by: + * Greg Kroah-Hartman <greg@kroah.com> + * + */ + +/* + * This essentially emulates the following shell script logic in C: + DIR="/etc/dev.d" + export DEVNODE="whatever_dev_name_udev_just_gave" + for I in "${DIR}/$DEVNODE/"*.dev "${DIR}/$1/"*.dev "${DIR}/default/"*.dev ; do + if [ -f $I ]; then $I $1 ; fi + done + exit 1; + */ + +#include <dirent.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <unistd.h> +#include "udev.h" +#include "udev_lib.h" +#include "logging.h" + +#define HOTPLUGDIR "/etc/dev.d" +#define COMMENT_PREFIX '#' + +static void run_program(char *name) +{ + pid_t pid; + + dbg("running %s", name); + + pid = fork(); + + if (pid < 0) { + perror("fork"); + return; + } + + if (pid > 0) { + wait(NULL); + return; + } + + execv(name, main_argv); + exit(1); +} + +static void execute_dir (char *dirname) +{ + DIR *directory; + struct dirent *entry; + char filename[256]; + + dbg("opening %s", dirname); + directory = opendir(dirname); + if (!directory) + return; + + while ((entry = readdir(directory))) { + if (entry->d_name[0] == '\0') + break; + /* Don't run the files '.', '..', or hidden files, + * or files that start with a '#' */ + if ((entry->d_name[0] == '.') || + (entry->d_name[0] == COMMENT_PREFIX)) + continue; + + /* FIXME - need to use file_list_insert() here to run these in sorted order... */ + snprintf(filename, sizeof(filename), "%s%s", dirname, entry->d_name); + filename[sizeof(filename)-1] = '\0'; + run_program(filename); + } + + closedir(directory); +} + +/* runs files in these directories in order: + * name given by udev + * subsystem + * default + */ +void dev_d_send(struct udevice *dev, char *subsystem) +{ + char dirname[256]; + char devnode[NAME_SIZE]; + + strfieldcpy(devnode, udev_root); + strfieldcat(devnode, dev->name); + setenv("DEVNODE", devnode, 1); + + snprintf(dirname, sizeof(dirname), HOTPLUGDIR "/%s/", dev->name); + dirname[sizeof(dirname)-1] = '\0'; + execute_dir(dirname); + + snprintf(dirname, sizeof(dirname), HOTPLUGDIR "/%s/", subsystem); + dirname[sizeof(dirname)-1] = '\0'; + execute_dir(dirname); + + strcpy(dirname, HOTPLUGDIR "/default/"); + execute_dir(dirname); +} + diff --git a/udev-add.c b/udev-add.c index 2bd16014f5..94a423dc6e 100644 --- a/udev-add.c +++ b/udev-add.c @@ -417,8 +417,10 @@ int udev_add_device(char *path, char *subsystem, int fake) dbg("name='%s'", dev.name); retval = create_node(&dev, fake); - if ((retval == 0) && (!fake)) + if ((retval == 0) && (!fake)) { + dev_d_send(&dev, subsystem); sysbus_send_create(&dev, path); + } exit: if (class_dev) diff --git a/udev-remove.c b/udev-remove.c index d909713450..dc6fcfc331 100644 --- a/udev-remove.c +++ b/udev-remove.c @@ -150,6 +150,7 @@ int udev_remove_device(char *path, char *subsystem) dbg("name is '%s'", dev.name); udevdb_delete_dev(path); + dev_d_send(&dev, subsystem); sysbus_send_remove(dev.name, path); retval = delete_node(&dev); @@ -65,6 +65,7 @@ extern int udev_add_device(char *path, char *subsystem, int fake); extern int udev_remove_device(char *path, char *subsystem); extern void udev_init_config(void); extern int parse_get_pair(char **orig_string, char **left, char **right); +extern void dev_d_send(struct udevice *dev, char *subsystem); extern char **main_argv; extern char **main_envp; |