X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udevstart.c;h=66b96a218654edffefb7e15bbdcfd719cfd6363f;hp=a9959c5d6b85cb631106addf567d0af81c242747;hb=274da2b23d37f2dd174f765e9cfcc485e4a5a898;hpb=fb6e4c28248cdeed30a1d3eb42aba477f0429472 diff --git a/udevstart.c b/udevstart.c index a9959c5d6..66b96a218 100644 --- a/udevstart.c +++ b/udevstart.c @@ -1,13 +1,9 @@ /* - * udevstart.c + * quick and dirty way to populate a /dev directory * + * Copyright (C) 2004 Harald Hoyer * Copyright (C) 2004 Greg Kroah-Hartman - * Copyright (C) 2004 Kay Sievers - * - * Quick and dirty way to populate a /dev with udev if your system - * does not have access to a shell. Based originally on a patch - * from: - * Harald Hoyer + * Copyright (C) 2004-2006 Kay Sievers * * 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 @@ -20,7 +16,7 @@ * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * */ @@ -38,14 +34,9 @@ #include #include -#include "libsysfs/sysfs/libsysfs.h" -#include "udev_libc_wrapper.h" #include "udev.h" -#include "udev_version.h" -#include "logging.h" -#include "udev_utils.h" #include "udev_rules.h" -#include "list.h" +#include "udev_selinux.h" static const char *udev_run_str; static const char *udev_log_str; @@ -68,17 +59,16 @@ void log_message(int priority, const char *format, ...) struct device { struct list_head node; char path[PATH_SIZE]; - char subsys[NAME_SIZE]; }; /* sort files in lexical order */ -static int device_list_insert(const char *path, char *subsystem, struct list_head *device_list) +static int device_list_insert(const char *path, struct list_head *device_list) { struct device *loop_device; struct device *new_device; const char *devpath = &path[strlen(sysfs_path)]; - dbg("insert: '%s'\n", devpath); + dbg("insert: '%s'", devpath); list_for_each_entry(loop_device, device_list, node) { if (strcmp(loop_device->path, devpath) > 0) { @@ -93,9 +83,8 @@ static int device_list_insert(const char *path, char *subsystem, struct list_hea } strlcpy(new_device->path, devpath, sizeof(new_device->path)); - strlcpy(new_device->subsys, subsystem, sizeof(new_device->subsys)); list_add_tail(&new_device->node, &loop_device->node); - dbg("add '%s' from subsys '%s'", new_device->path, new_device->subsys); + dbg("add '%s'" , new_device->path); return 0; } @@ -112,65 +101,58 @@ static char *first_list[] = { NULL, }; -static int add_device(const char *devpath, const char *subsystem) +static int add_device(const char *devpath) { - struct udevice udev; - struct sysfs_class_device *class_dev; - char path[PATH_SIZE]; + struct sysfs_device *dev; + struct udevice *udev; + int retval = 0; /* clear and set environment for next event */ clearenv(); setenv("ACTION", "add", 1); - setenv("DEVPATH", devpath, 1); - setenv("SUBSYSTEM", subsystem, 1); setenv("UDEV_START", "1", 1); if (udev_log_str) setenv("UDEV_LOG", udev_log_str, 1); if (udev_run_str) setenv("UDEV_RUN", udev_run_str, 1); - dbg("add '%s'", devpath); - snprintf(path, sizeof(path), "%s%s", sysfs_path, devpath); - path[sizeof(path)-1] = '\0'; - class_dev = sysfs_open_class_device_path(path); - if (class_dev == NULL) { - dbg("sysfs_open_class_device_path failed"); + dev = sysfs_device_get(devpath); + if (dev == NULL) return -1; - } - udev_init_device(&udev, &class_dev->path[strlen(sysfs_path)], subsystem, "add"); - udev.devt = get_devt(class_dev); - if (!udev.devt && udev.type != DEV_NET) { - dbg("sysfs_open_class_device_path failed"); + udev = udev_device_init(NULL); + if (udev == NULL) return -1; + + /* override built-in sysfs device */ + udev->dev = dev; + strcpy(udev->action, "add"); + + if (strcmp(udev->dev->subsystem, "net") != 0) { + udev->devt = udev_device_get_devt(udev); + if (major(udev->devt) == 0) + return -1; } - udev_rules_get_name(&rules, &udev, class_dev); - if (udev.ignore_device) { + + dbg("add '%s'", udev->dev->devpath); + setenv("DEVPATH", udev->dev->devpath, 1); + setenv("SUBSYSTEM", udev->dev->subsystem, 1); + + udev_rules_get_name(&rules, udev); + if (udev->ignore_device) { dbg("device event will be ignored"); goto exit; } - if (udev.name[0] == '\0') { - dbg("device node creation supressed"); - goto run; - } + if (udev->name[0] != '\0') + retval = udev_device_event(&rules, udev); + else + info("device node creation supressed"); - udev_add_device(&udev, class_dev); -run: - if (udev_run && !list_empty(&udev.run_list)) { - struct name_entry *name_loop; + if (retval == 0 && udev_run) + udev_rules_run(udev); - dbg("executing run list"); - list_for_each_entry(name_loop, &udev.run_list, node) { - if (strncmp(name_loop->name, "socket:", strlen("socket:")) == 0) - pass_env_to_socket(&name_loop->name[strlen("socket:")], devpath, "add"); - else - run_program(name_loop->name, udev.subsystem, NULL, 0, NULL, (udev_log_priority >= LOG_INFO)); - } - } exit: - sysfs_close_class_device(class_dev); - udev_cleanup_device(&udev); - + udev_device_cleanup(udev); return 0; } @@ -184,7 +166,7 @@ static void exec_list(struct list_head *device_list) list_for_each_entry_safe(loop_device, tmp_device, device_list, node) { for (i = 0; first_list[i] != NULL; i++) { if (strncmp(loop_device->path, first_list[i], strlen(first_list[i])) == 0) { - add_device(loop_device->path, loop_device->subsys); + add_device(loop_device->path); list_del(&loop_device->node); free(loop_device); break; @@ -204,14 +186,14 @@ static void exec_list(struct list_head *device_list) if (found) continue; - add_device(loop_device->path, loop_device->subsys); + add_device(loop_device->path); list_del(&loop_device->node); free(loop_device); } /* handle the rest of the devices left over, if any */ list_for_each_entry_safe(loop_device, tmp_device, device_list, node) { - add_device(loop_device->path, loop_device->subsys); + add_device(loop_device->path); list_del(&loop_device->node); free(loop_device); } @@ -253,7 +235,7 @@ static void udev_scan_block(struct list_head *device_list) snprintf(dirname, sizeof(dirname), "%s/%s", base, dent->d_name); dirname[sizeof(dirname)-1] = '\0'; if (has_devt(dirname)) - device_list_insert(dirname, "block", device_list); + device_list_insert(dirname, device_list); else continue; @@ -270,7 +252,7 @@ static void udev_scan_block(struct list_head *device_list) dirname2[sizeof(dirname2)-1] = '\0'; if (has_devt(dirname2)) - device_list_insert(dirname2, "block", device_list); + device_list_insert(dirname2, device_list); } closedir(dir2); } @@ -313,7 +295,7 @@ static void udev_scan_class(struct list_head *device_list) dirname2[sizeof(dirname2)-1] = '\0'; if (has_devt(dirname2) || strcmp(dent->d_name, "net") == 0) - device_list_insert(dirname2, dent->d_name, device_list); + device_list_insert(dirname2, device_list); } closedir(dir2); } @@ -339,7 +321,8 @@ int main(int argc, char *argv[], char *envp[]) struct sigaction act; logging_init("udevstart"); - udev_init_config(); + udev_config_init(); + selinux_init(); dbg("version %s", UDEV_VERSION); udev_run_str = getenv("UDEV_RUN"); @@ -361,13 +344,16 @@ int main(int argc, char *argv[], char *envp[]) /* trigger timeout to prevent hanging processes */ alarm(UDEV_ALARM_TIMEOUT); + sysfs_init(); udev_rules_init(&rules, 1); udev_scan_class(&device_list); udev_scan_block(&device_list); exec_list(&device_list); - udev_rules_close(&rules); + udev_rules_cleanup(&rules); + sysfs_cleanup(); + selinux_exit(); logging_close(); return 0; }