/*
- * Copyright (C) 2003-2010 Kay Sievers <kay.sievers@vrfy.org>
+ * Copyright (C) 2003-2013 Kay Sievers <kay@vrfy.org>
*
* 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
#include <string.h>
#include <time.h>
#include <net/if.h>
-#include <sys/ioctl.h>
#include <sys/prctl.h>
#include <sys/poll.h>
#include <sys/epoll.h>
#include <sys/wait.h>
-#include <sys/socket.h>
#include <sys/signalfd.h>
-#include <linux/sockios.h>
#include "udev.h"
+#include "rtnl-util.h"
struct udev_event *udev_event_new(struct udev_device *dev)
{
event->dev = dev;
event->udev = udev;
udev_list_init(udev, &event->run_list, false);
+ udev_list_init(udev, &event->seclabel_list, false);
event->fd_signal = -1;
- event->birth_usec = now_usec();
+ event->birth_usec = now(CLOCK_MONOTONIC);
event->timeout_usec = 30 * 1000 * 1000;
return event;
}
if (event == NULL)
return;
udev_list_cleanup(&event->run_list);
+ udev_list_cleanup(&event->seclabel_list);
free(event->program_result);
free(event->name);
free(event);
const char fmt;
enum subst_type type;
} map[] = {
- { .name = "devnode", .fmt = 'N', .type = SUBST_DEVNODE },
- { .name = "tempnode", .fmt = 'N', .type = SUBST_DEVNODE },
- { .name = "attr", .fmt = 's', .type = SUBST_ATTR },
- { .name = "sysfs", .fmt = 's', .type = SUBST_ATTR },
- { .name = "env", .fmt = 'E', .type = SUBST_ENV },
- { .name = "kernel", .fmt = 'k', .type = SUBST_KERNEL },
- { .name = "number", .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
- { .name = "driver", .fmt = 'd', .type = SUBST_DRIVER },
- { .name = "devpath", .fmt = 'p', .type = SUBST_DEVPATH },
- { .name = "id", .fmt = 'b', .type = SUBST_ID },
- { .name = "major", .fmt = 'M', .type = SUBST_MAJOR },
- { .name = "minor", .fmt = 'm', .type = SUBST_MINOR },
- { .name = "result", .fmt = 'c', .type = SUBST_RESULT },
- { .name = "parent", .fmt = 'P', .type = SUBST_PARENT },
- { .name = "name", .fmt = 'D', .type = SUBST_NAME },
- { .name = "links", .fmt = 'L', .type = SUBST_LINKS },
- { .name = "root", .fmt = 'r', .type = SUBST_ROOT },
- { .name = "sys", .fmt = 'S', .type = SUBST_SYS },
+ { .name = "devnode", .fmt = 'N', .type = SUBST_DEVNODE },
+ { .name = "tempnode", .fmt = 'N', .type = SUBST_DEVNODE },
+ { .name = "attr", .fmt = 's', .type = SUBST_ATTR },
+ { .name = "sysfs", .fmt = 's', .type = SUBST_ATTR },
+ { .name = "env", .fmt = 'E', .type = SUBST_ENV },
+ { .name = "kernel", .fmt = 'k', .type = SUBST_KERNEL },
+ { .name = "number", .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
+ { .name = "driver", .fmt = 'd', .type = SUBST_DRIVER },
+ { .name = "devpath", .fmt = 'p', .type = SUBST_DEVPATH },
+ { .name = "id", .fmt = 'b', .type = SUBST_ID },
+ { .name = "major", .fmt = 'M', .type = SUBST_MAJOR },
+ { .name = "minor", .fmt = 'm', .type = SUBST_MINOR },
+ { .name = "result", .fmt = 'c', .type = SUBST_RESULT },
+ { .name = "parent", .fmt = 'P', .type = SUBST_PARENT },
+ { .name = "name", .fmt = 'D', .type = SUBST_NAME },
+ { .name = "links", .fmt = 'L', .type = SUBST_LINKS },
+ { .name = "root", .fmt = 'r', .type = SUBST_ROOT },
+ { .name = "sys", .fmt = 'S', .type = SUBST_SYS },
};
const char *from;
char *s;
switch (type) {
case SUBST_DEVPATH:
- l = util_strpcpy(&s, l, udev_device_get_devpath(dev));
+ l = strpcpy(&s, l, udev_device_get_devpath(dev));
break;
case SUBST_KERNEL:
- l = util_strpcpy(&s, l, udev_device_get_sysname(dev));
+ l = strpcpy(&s, l, udev_device_get_sysname(dev));
break;
case SUBST_KERNEL_NUMBER:
if (udev_device_get_sysnum(dev) == NULL)
break;
- l = util_strpcpy(&s, l, udev_device_get_sysnum(dev));
+ l = strpcpy(&s, l, udev_device_get_sysnum(dev));
break;
case SUBST_ID:
if (event->dev_parent == NULL)
break;
- l = util_strpcpy(&s, l, udev_device_get_sysname(event->dev_parent));
+ l = strpcpy(&s, l, udev_device_get_sysname(event->dev_parent));
break;
case SUBST_DRIVER: {
const char *driver;
driver = udev_device_get_driver(event->dev_parent);
if (driver == NULL)
break;
- l = util_strpcpy(&s, l, driver);
+ l = strpcpy(&s, l, driver);
break;
}
case SUBST_MAJOR: {
char num[UTIL_PATH_SIZE];
sprintf(num, "%d", major(udev_device_get_devnum(dev)));
- l = util_strpcpy(&s, l, num);
+ l = strpcpy(&s, l, num);
break;
}
case SUBST_MINOR: {
char num[UTIL_PATH_SIZE];
sprintf(num, "%d", minor(udev_device_get_devnum(dev)));
- l = util_strpcpy(&s, l, num);
+ l = strpcpy(&s, l, num);
break;
}
case SUBST_RESULT: {
char tmp[UTIL_PATH_SIZE];
char *cpos;
- util_strscpy(result, sizeof(result), event->program_result);
+ strscpy(result, sizeof(result), event->program_result);
cpos = result;
while (--i) {
while (cpos[0] != '\0' && !isspace(cpos[0]))
log_error("requested part of result string not found\n");
break;
}
- util_strscpy(tmp, sizeof(tmp), cpos);
+ strscpy(tmp, sizeof(tmp), cpos);
/* %{2+}c copies the whole string from the second part on */
if (rest[0] != '+') {
cpos = strchr(tmp, ' ');
if (cpos)
cpos[0] = '\0';
}
- l = util_strpcpy(&s, l, tmp);
+ l = strpcpy(&s, l, tmp);
} else {
- l = util_strpcpy(&s, l, event->program_result);
+ l = strpcpy(&s, l, event->program_result);
}
break;
}
/* strip trailing whitespace, and replace unwanted characters */
if (value != vbuf)
- util_strscpy(vbuf, sizeof(vbuf), value);
+ strscpy(vbuf, sizeof(vbuf), value);
len = strlen(vbuf);
while (len > 0 && isspace(vbuf[--len]))
vbuf[len] = '\0';
count = util_replace_chars(vbuf, UDEV_ALLOWED_CHARS_INPUT);
if (count > 0)
log_debug("%i character(s) replaced\n" , count);
- l = util_strpcpy(&s, l, vbuf);
+ l = strpcpy(&s, l, vbuf);
break;
}
case SUBST_PARENT: {
break;
devnode = udev_device_get_devnode(dev_parent);
if (devnode != NULL)
- l = util_strpcpy(&s, l, devnode + strlen(TEST_PREFIX "/dev/"));
+ l = strpcpy(&s, l, devnode + strlen("/dev/"));
break;
}
case SUBST_DEVNODE:
if (udev_device_get_devnode(dev) != NULL)
- l = util_strpcpy(&s, l, udev_device_get_devnode(dev));
+ l = strpcpy(&s, l, udev_device_get_devnode(dev));
break;
case SUBST_NAME:
if (event->name != NULL)
- l = util_strpcpy(&s, l, event->name);
+ l = strpcpy(&s, l, event->name);
else if (udev_device_get_devnode(dev) != NULL)
- l = util_strpcpy(&s, l, udev_device_get_devnode(dev) + strlen(TEST_PREFIX "/dev/"));
+ l = strpcpy(&s, l, udev_device_get_devnode(dev) + strlen("/dev/"));
else
- l = util_strpcpy(&s, l, udev_device_get_sysname(dev));
+ l = strpcpy(&s, l, udev_device_get_sysname(dev));
break;
case SUBST_LINKS: {
struct udev_list_entry *list_entry;
list_entry = udev_device_get_devlinks_list_entry(dev);
if (list_entry == NULL)
break;
- l = util_strpcpy(&s, l, udev_list_entry_get_name(list_entry) + strlen(TEST_PREFIX "/dev/"));
+ l = strpcpy(&s, l, udev_list_entry_get_name(list_entry) + strlen("/dev/"));
udev_list_entry_foreach(list_entry, udev_list_entry_get_next(list_entry))
- l = util_strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry) + strlen(TEST_PREFIX "/dev/"), NULL);
+ l = strpcpyl(&s, l, " ", udev_list_entry_get_name(list_entry) + strlen("/dev/"), NULL);
break;
}
case SUBST_ROOT:
- l = util_strpcpy(&s, l, TEST_PREFIX "/dev");
+ l = strpcpy(&s, l, "/dev");
break;
case SUBST_SYS:
- l = util_strpcpy(&s, l, TEST_PREFIX "/sys");
+ l = strpcpy(&s, l, "/sys");
break;
case SUBST_ENV:
if (attr == NULL) {
value = udev_device_get_property_value(event->dev, attr);
if (value == NULL)
break;
- l = util_strpcpy(&s, l, value);
+ l = strpcpy(&s, l, value);
break;
}
default:
int i;
if (event->timeout_usec > 0) {
- unsigned long long age_usec;
+ usec_t age_usec;
- age_usec = now_usec() - event->birth_usec;
+ age_usec = now(CLOCK_MONOTONIC) - event->birth_usec;
if (age_usec >= event->timeout_usec) {
log_error("timeout '%s'\n", cmd);
goto out;
int fdcount;
if (event->timeout_usec > 0) {
- unsigned long long age_usec;
+ usec_t age_usec;
- age_usec = now_usec() - event->birth_usec;
+ age_usec = now(CLOCK_MONOTONIC) - event->birth_usec;
if (age_usec >= event->timeout_usec)
timeout = 1000;
else
char program[UTIL_PATH_SIZE];
int err = 0;
- util_strscpy(arg, sizeof(arg), cmd);
+ strscpy(arg, sizeof(arg), cmd);
udev_build_argv(event->udev, arg, NULL, argv);
/* pipes from child to parent */
/* allow programs in /usr/lib/udev/ to be called without the path */
if (argv[0][0] != '/') {
- util_strscpyl(program, sizeof(program), UDEVLIBEXECDIR "/", argv[0], NULL);
+ strscpyl(program, sizeof(program), UDEVLIBEXECDIR "/", argv[0], NULL);
argv[0] = program;
}
return err;
}
-static void rename_netif_kernel_log(struct ifreq ifr)
-{
- int klog;
- FILE *f;
-
- klog = open("/dev/kmsg", O_WRONLY|O_CLOEXEC);
- if (klog < 0)
- return;
-
- f = fdopen(klog, "w");
- if (f == NULL) {
- close(klog);
- return;
- }
-
- fprintf(f, "<30>udevd[%u]: renamed network interface %s to %s\n",
- getpid(), ifr.ifr_name, ifr.ifr_newname);
- fclose(f);
-}
-
static int rename_netif(struct udev_event *event)
{
struct udev_device *dev = event->dev;
- int sk;
- struct ifreq ifr;
- int loop;
- int err;
-
- log_debug("changing net interface name from '%s' to '%s'\n",
- udev_device_get_sysname(dev), event->name);
-
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0) {
- err = -errno;
- log_error("error opening socket: %m\n");
- return err;
- }
-
- memset(&ifr, 0x00, sizeof(struct ifreq));
- util_strscpy(ifr.ifr_name, IFNAMSIZ, udev_device_get_sysname(dev));
- util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
- err = ioctl(sk, SIOCSIFNAME, &ifr);
- if (err == 0) {
- rename_netif_kernel_log(ifr);
- goto out;
- }
-
- /* keep trying if the destination interface name already exists */
- err = -errno;
- if (err != -EEXIST)
- goto out;
+ _cleanup_sd_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ char name[IFNAMSIZ];
+ const char *oldname;
+ int r;
- /* free our own name, another process may wait for us */
- snprintf(ifr.ifr_newname, IFNAMSIZ, "rename%u", udev_device_get_ifindex(dev));
- err = ioctl(sk, SIOCSIFNAME, &ifr);
- if (err < 0) {
- err = -errno;
- goto out;
- }
+ oldname = udev_device_get_sysname(dev);
- /* log temporary name */
- rename_netif_kernel_log(ifr);
+ log_debug("changing net interface name from '%s' to '%s'\n",
+ oldname, event->name);
- /* wait a maximum of 90 seconds for our target to become available */
- util_strscpy(ifr.ifr_name, IFNAMSIZ, ifr.ifr_newname);
- util_strscpy(ifr.ifr_newname, IFNAMSIZ, event->name);
- loop = 90 * 20;
- while (loop--) {
- const struct timespec duration = { 0, 1000 * 1000 * 1000 / 20 };
+ strscpy(name, IFNAMSIZ, event->name);
- nanosleep(&duration, NULL);
+ r = sd_rtnl_open(0, &rtnl);
+ if (r < 0)
+ return r;
- err = ioctl(sk, SIOCSIFNAME, &ifr);
- if (err == 0) {
- rename_netif_kernel_log(ifr);
- break;
- }
- err = -errno;
- if (err != -EEXIST)
- break;
- }
+ r = rtnl_set_link_name(rtnl, udev_device_get_ifindex(dev), name);
+ if (r < 0)
+ log_error("error changing net interface name %s to %s: %s",
+ oldname, name, strerror(-r));
+ else
+ print_kmsg("renamed network interface %s to %s", oldname, name);
-out:
- if (err < 0)
- log_error("error changing net interface name %s to %s: %m\n", ifr.ifr_name, ifr.ifr_newname);
- close(sk);
- return err;
+ return r;
}
int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigmask)
if (udev_device_get_subsystem(dev) == NULL)
return -1;
- if (strcmp(udev_device_get_action(dev), "remove") == 0) {
+ if (streq(udev_device_get_action(dev), "remove")) {
udev_device_read_db(dev, NULL);
udev_device_delete_db(dev);
udev_device_tag_index(dev, NULL, false);
if (major(udev_device_get_devnum(dev)) != 0)
udev_node_remove(dev);
} else {
- event->dev_db = udev_device_new_from_syspath(event->udev, udev_device_get_syspath(dev));
+ event->dev_db = udev_device_new(event->udev);
if (event->dev_db != NULL) {
+ udev_device_set_syspath(event->dev_db, udev_device_get_syspath(dev));
+ udev_device_set_subsystem(event->dev_db, udev_device_get_subsystem(dev));
udev_device_read_db(event->dev_db, NULL);
udev_device_set_info_loaded(event->dev_db);
udev_rules_apply_to_event(rules, event, sigmask);
/* rename a new network interface, if needed */
- if (udev_device_get_ifindex(dev) > 0 && strcmp(udev_device_get_action(dev), "add") == 0 &&
- event->name != NULL && strcmp(event->name, udev_device_get_sysname(dev)) != 0) {
+ if (udev_device_get_ifindex(dev) > 0 && streq(udev_device_get_action(dev), "add") &&
+ event->name != NULL && !streq(event->name, udev_device_get_sysname(dev))) {
char syspath[UTIL_PATH_SIZE];
char *pos;
udev_device_add_property(dev, "INTERFACE_OLD", udev_device_get_sysname(dev));
/* now change the devpath, because the kernel device name has changed */
- util_strscpy(syspath, sizeof(syspath), udev_device_get_syspath(dev));
+ strscpy(syspath, sizeof(syspath), udev_device_get_syspath(dev));
pos = strrchr(syspath, '/');
if (pos != NULL) {
pos++;
- util_strscpy(pos, sizeof(syspath) - (pos - syspath), event->name);
+ strscpy(pos, sizeof(syspath) - (pos - syspath), event->name);
udev_device_set_syspath(event->dev, syspath);
udev_device_add_property(dev, "INTERFACE", udev_device_get_sysname(dev));
log_debug("changed devpath to '%s'\n", udev_device_get_devpath(dev));
}
if (major(udev_device_get_devnum(dev)) > 0) {
+ bool apply;
+
/* remove/update possible left-over symlinks from old database entry */
if (event->dev_db != NULL)
udev_node_update_old_links(dev, event->dev_db);
+ if (!event->owner_set)
+ event->uid = udev_device_get_devnode_uid(dev);
+
+ if (!event->group_set)
+ event->gid = udev_device_get_devnode_gid(dev);
+
if (!event->mode_set) {
if (udev_device_get_devnode_mode(dev) > 0) {
/* kernel supplied value */
}
}
- udev_node_add(dev, event->mode, event->uid, event->gid);
+ apply = streq(udev_device_get_action(dev), "add") || event->owner_set || event->group_set || event->mode_set;
+ udev_node_add(dev, apply, event->mode, event->uid, event->gid, &event->seclabel_list);
}
/* preserve old, or get new initialization timestamp */
if (event->dev_db != NULL && udev_device_get_usec_initialized(event->dev_db) > 0)
udev_device_set_usec_initialized(event->dev, udev_device_get_usec_initialized(event->dev_db));
else if (udev_device_get_usec_initialized(event->dev) == 0)
- udev_device_set_usec_initialized(event->dev, now_usec());
+ udev_device_set_usec_initialized(event->dev, now(CLOCK_MONOTONIC));
/* (re)write database file */
udev_device_update_db(dev);
~ianmdlvl / elogind.git / blobdiff