chiark / gitweb /
usb_id: don't fail on other subsytems than "scsi"
[elogind.git] / udevstart.c
index 23a13e0..8c414f1 100644 (file)
 #include <ctype.h>
 #include <dirent.h>
 #include <signal.h>
+#include <syslog.h>
 #include <sys/wait.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include "libsysfs/sysfs/libsysfs.h"
-#include "udev_libc_wrapper.h"
-#include "udev_sysfs.h"
 #include "udev.h"
-#include "udev_version.h"
-#include "logging.h"
-#include "udev_utils.h"
 #include "udev_rules.h"
-#include "list.h"
 
 static const char *udev_run_str;
 static const char *udev_log_str;
@@ -68,19 +62,19 @@ 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", path);
+       dbg("insert: '%s'\n", devpath);
 
        list_for_each_entry(loop_device, device_list, node) {
-               if (strcmp(loop_device->path, path) > 0) {
+               if (strcmp(loop_device->path, devpath) > 0) {
                        break;
                }
        }
@@ -91,10 +85,9 @@ static int device_list_insert(const char *path, char *subsystem, struct list_hea
                return -ENOMEM;
        }
 
-       strlcpy(new_device->path, path, sizeof(new_device->path));
-       strlcpy(new_device->subsys, subsystem, sizeof(new_device->subsys));
+       strlcpy(new_device->path, devpath, sizeof(new_device->path));
        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;
 }
 
@@ -106,70 +99,73 @@ static char *last_list[] = {
 
 /* list of devices that we should run first due to any one of a number of reasons */
 static char *first_list[] = {
-       "/class/mem",   /* people tend to like their memory devices around first... */
+       "/class/mem",
+       "/class/tty",
        NULL,
 };
 
-static int add_device(const char *path, const char *subsystem)
+static int add_device(const char *devpath)
 {
-       struct udevice udev;
-       struct sysfs_class_device *class_dev;
-       const char *devpath;
-
-       devpath = &path[strlen(sysfs_path)];
+       struct sysfs_device *dev;
+       struct udevice *udev;
 
        /* 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("exec: '%s' (%s)\n", devpath, path);
 
-       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, devpath, 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();
+       if (udev == NULL)
                return -1;
+
+       /* override built-in sysfs device */
+       udev->dev = dev;
+       strcpy(udev->action, "add");
+       udev->devt = udev_device_get_devt(udev);
+
+       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') {
+       if (udev->name[0] == '\0') {
                dbg("device node creation supressed");
                goto run;
        }
 
-       udev_add_device(&udev, class_dev);
-       if (udev.devname[0] != '\0')
-               setenv("DEVNAME", udev.devname, 1);
+       udev_add_device(udev);
 run:
-       if (udev_run && !list_empty(&udev.run_list)) {
+       if (udev_run && !list_empty(&udev->run_list)) {
                struct name_entry *name_loop;
 
                dbg("executing run list");
-               list_for_each_entry(name_loop, &udev.run_list, node) {
+               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");
+                               pass_env_to_socket(&name_loop->name[strlen("socket:")], udev->dev->devpath, "add");
                        else
-                               execute_program(name_loop->name, udev.subsystem, NULL, 0, NULL);
+                               run_program(name_loop->name, udev->dev->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 +180,7 @@ 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;
@@ -204,25 +200,25 @@ 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);
        }
 }
 
-static int has_devt(const char *directory)
+static int has_devt(const char *path)
 {
        char filename[PATH_SIZE];
        struct stat statbuf;
 
-       snprintf(filename, sizeof(filename), "%s/dev", directory);
+       snprintf(filename, sizeof(filename), "%s/dev", path);
        filename[sizeof(filename)-1] = '\0';
 
        if (stat(filename, &statbuf) == 0)
@@ -231,12 +227,11 @@ static int has_devt(const char *directory)
        return 0;
 }
 
-static void udev_scan_block(void)
+static void udev_scan_block(struct list_head *device_list)
 {
        char base[PATH_SIZE];
        DIR *dir;
        struct dirent *dent;
-       LIST_HEAD(device_list);
 
        snprintf(base, sizeof(base), "%s/block", sysfs_path);
        base[sizeof(base)-1] = '\0';
@@ -254,7 +249,7 @@ static void udev_scan_block(void)
                        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;
 
@@ -271,22 +266,20 @@ static void udev_scan_block(void)
                                        dirname2[sizeof(dirname2)-1] = '\0';
 
                                        if (has_devt(dirname2))
-                                               device_list_insert(dirname2, "block", &device_list);
+                                               device_list_insert(dirname2, device_list);
                                }
                                closedir(dir2);
                        }
                }
                closedir(dir);
        }
-       exec_list(&device_list);
 }
 
-static void udev_scan_class(void)
+static void udev_scan_class(struct list_head *device_list)
 {
        char base[PATH_SIZE];
        DIR *dir;
        struct dirent *dent;
-       LIST_HEAD(device_list);
 
        snprintf(base, sizeof(base), "%s/class", sysfs_path);
        base[sizeof(base)-1] = '\0';
@@ -316,14 +309,13 @@ static void udev_scan_class(void)
                                        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);
                        }
                }
                closedir(dir);
        }
-       exec_list(&device_list);
 }
 
 static void asmlinkage sig_handler(int signum)
@@ -339,10 +331,11 @@ static void asmlinkage sig_handler(int signum)
 
 int main(int argc, char *argv[], char *envp[])
 {
+       LIST_HEAD(device_list);
        struct sigaction act;
 
        logging_init("udevstart");
-       udev_init_config();
+       udev_config_init();
        dbg("version %s", UDEV_VERSION);
 
        udev_run_str = getenv("UDEV_RUN");
@@ -364,12 +357,15 @@ int main(int argc, char *argv[], char *envp[])
        /* trigger timeout to prevent hanging processes */
        alarm(UDEV_ALARM_TIMEOUT);
 
-       udev_rules_init(&rules, 0, 1);
+       sysfs_init();
+       udev_rules_init(&rules, 1);
 
-       udev_scan_block();
-       udev_scan_class();
+       udev_scan_class(&device_list);
+       udev_scan_block(&device_list);
+       exec_list(&device_list);
 
-       udev_rules_close(&rules);
+       udev_rules_cleanup(&rules);
+       sysfs_cleanup();
        logging_close();
        return 0;
 }