/*
- * Copyright (C) 2003-2010 Kay Sievers <kay@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)
{
struct udev *udev = udev_device_get_udev(dev);
struct udev_event *event;
- event = calloc(1, sizeof(struct udev_event));
+ event = new0(struct udev_event, 1);
if (event == NULL)
return NULL;
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(CLOCK_MONOTONIC);
event->timeout_usec = 30 * 1000 * 1000;
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);
from++;
for (i = 0; from[i] != '}'; i++) {
if (from[i] == '\0') {
- log_error("missing closing brace for format '%s'\n", src);
+ log_error("missing closing brace for format '%s'", src);
goto out;
}
}
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]))
cpos++;
while (isspace(cpos[0]))
cpos++;
+ if (cpos[0] == '\0')
+ break;
}
if (i > 0) {
- log_error("requested part of result string not found\n");
+ log_error("requested part of result string not found");
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;
}
int count;
if (attr == NULL) {
- log_error("missing file parameter for attr\n");
+ log_error("missing file parameter for attr");
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);
+ log_debug("%i character(s) replaced" , count);
+ 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("/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("/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("/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("/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, "/dev");
+ l = strpcpy(&s, l, "/dev");
break;
case SUBST_SYS:
- l = util_strpcpy(&s, l, "/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:
- log_error("unknown substitution type=%i\n", type);
+ log_error("unknown substitution type=%i", type);
break;
}
}
dup2(fd, STDERR_FILENO);
close(fd);
} else {
- log_error("open /dev/null failed: %m\n");
+ log_error("open /dev/null failed: %m");
}
/* connect pipes to std{out,err} */
/* exec failed */
err = -errno;
- log_error("failed to execute '%s' '%s': %m\n", argv[0], cmd);
+ log_error("failed to execute '%s' '%s': %m", argv[0], cmd);
return err;
}
fd_ep = epoll_create1(EPOLL_CLOEXEC);
if (fd_ep < 0) {
- log_error("error creating epoll fd: %m\n");
+ log_error("error creating epoll fd: %m");
goto out;
}
if (fd_stdout >= 0) {
- memset(&ep_outpipe, 0, sizeof(struct epoll_event));
+ memzero(&ep_outpipe, sizeof(struct epoll_event));
ep_outpipe.events = EPOLLIN;
ep_outpipe.data.ptr = &fd_stdout;
if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stdout, &ep_outpipe) < 0) {
- log_error("fail to add fd to epoll: %m\n");
+ log_error("fail to add fd to epoll: %m");
goto out;
}
}
if (fd_stderr >= 0) {
- memset(&ep_errpipe, 0, sizeof(struct epoll_event));
+ memzero(&ep_errpipe, sizeof(struct epoll_event));
ep_errpipe.events = EPOLLIN;
ep_errpipe.data.ptr = &fd_stderr;
if (epoll_ctl(fd_ep, EPOLL_CTL_ADD, fd_stderr, &ep_errpipe) < 0) {
- log_error("fail to add fd to epoll: %m\n");
+ log_error("fail to add fd to epoll: %m");
goto out;
}
}
age_usec = now(CLOCK_MONOTONIC) - event->birth_usec;
if (age_usec >= event->timeout_usec) {
- log_error("timeout '%s'\n", cmd);
+ log_error("timeout '%s'", cmd);
goto out;
}
timeout = ((event->timeout_usec - age_usec) / 1000) + 1000;
if (fdcount < 0) {
if (errno == EINTR)
continue;
- log_error("failed to poll: %m\n");
+ log_error("failed to poll: %m");
goto out;
}
if (fdcount == 0) {
- log_error("timeout '%s'\n", cmd);
+ log_error("timeout '%s'", cmd);
goto out;
}
memcpy(&result[respos], buf, count);
respos += count;
} else {
- log_error("'%s' ressize %zd too short\n", cmd, ressize);
+ log_error("'%s' ressize %zd too short", cmd, ressize);
}
}
pos = buf;
while ((line = strsep(&pos, "\n"))) {
if (pos != NULL || line[0] != '\0')
- log_debug("'%s'(%s) '%s'\n", cmd, *fd == fd_stdout ? "out" : "err" , line);
+ log_debug("'%s'(%s) '%s'", cmd, *fd == fd_stdout ? "out" : "err" , line);
}
}
} else if (ev[i].events & EPOLLHUP) {
if (epoll_ctl(fd_ep, EPOLL_CTL_DEL, *fd, NULL) < 0) {
- log_error("failed to remove fd from epoll: %m\n");
+ log_error("failed to remove fd from epoll: %m");
goto out;
}
*fd = -1;
if (errno == EINTR)
continue;
err = -errno;
- log_error("failed to poll: %m\n");
+ log_error("failed to poll: %m");
goto out;
}
if (fdcount == 0) {
- log_error("timeout: killing '%s' [%u]\n", cmd, pid);
+ log_error("timeout: killing '%s' [%u]", cmd, pid);
kill(pid, SIGKILL);
}
if (waitpid(pid, &status, WNOHANG) < 0)
break;
if (WIFEXITED(status)) {
- log_debug("'%s' [%u] exit with return code %i\n", cmd, pid, WEXITSTATUS(status));
+ log_debug("'%s' [%u] exit with return code %i", cmd, pid, WEXITSTATUS(status));
if (WEXITSTATUS(status) != 0)
err = -1;
} else if (WIFSIGNALED(status)) {
- log_error("'%s' [%u] terminated by signal %i (%s)\n", cmd, pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
+ log_error("'%s' [%u] terminated by signal %i (%s)", cmd, pid, WTERMSIG(status), strsignal(WTERMSIG(status)));
err = -1;
} else if (WIFSTOPPED(status)) {
- log_error("'%s' [%u] stopped\n", cmd, pid);
+ log_error("'%s' [%u] stopped", cmd, pid);
err = -1;
} else if (WIFCONTINUED(status)) {
- log_error("'%s' [%u] continued\n", cmd, pid);
+ log_error("'%s' [%u] continued", cmd, pid);
err = -1;
} else {
- log_error("'%s' [%u] exit with status 0x%04x\n", cmd, pid, status);
+ log_error("'%s' [%u] exit with status 0x%04x", cmd, pid, status);
err = -1;
}
pid = 0;
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 */
if (result != NULL || udev_get_log_priority(udev) >= LOG_INFO) {
if (pipe2(outpipe, O_NONBLOCK) != 0) {
err = -errno;
- log_error("pipe failed: %m\n");
+ log_error("pipe failed: %m");
goto out;
}
}
if (udev_get_log_priority(udev) >= LOG_INFO) {
if (pipe2(errpipe, O_NONBLOCK) != 0) {
err = -errno;
- log_error("pipe failed: %m\n");
+ log_error("pipe failed: %m");
goto out;
}
}
/* 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;
}
errpipe[READ_END] = -1;
}
- log_debug("starting '%s'\n", cmd);
+ log_debug("starting '%s'", cmd);
spawn_exec(event, cmd, argv, envp, sigmask,
outpipe[WRITE_END], errpipe[WRITE_END]);
_exit(2 );
case -1:
- log_error("fork of '%s' failed: %m\n", cmd);
+ log_error("fork of '%s' failed: %m", cmd);
err = -1;
goto out;
default:
static int rename_netif(struct udev_event *event)
{
struct udev_device *dev = event->dev;
- int sk;
- struct ifreq ifr;
- int err;
+ _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
+ char name[IFNAMSIZ];
+ const char *oldname;
+ int r;
- log_debug("changing net interface name from '%s' to '%s'\n",
- udev_device_get_sysname(dev), event->name);
+ oldname = udev_device_get_sysname(dev);
- sk = socket(PF_INET, SOCK_DGRAM, 0);
- if (sk < 0) {
- err = -errno;
- log_error("error opening socket: %m\n");
- return err;
- }
+ log_debug("changing net interface name from '%s' to '%s'",
+ oldname, event->name);
- 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) {
- print_kmsg("renamed network interface %s to %s\n", ifr.ifr_name, ifr.ifr_newname);
- } else {
- err = -errno;
- log_error("error changing net interface name %s to %s: %m\n", ifr.ifr_name, ifr.ifr_newname);
- }
- close(sk);
- return err;
+ strscpy(name, IFNAMSIZ, event->name);
+
+ r = sd_rtnl_open(&rtnl, 0);
+ if (r < 0)
+ return r;
+
+ 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\n", oldname, name);
+
+ return r;
}
-int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigmask)
+void udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules, const sigset_t *sigmask)
{
struct udev_device *dev = event->dev;
- int err = 0;
if (udev_device_get_subsystem(dev) == NULL)
- return -1;
+ return;
- 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);
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;
+ int r;
- err = rename_netif(event);
- if (err == 0) {
- log_debug("renamed netif to '%s'\n", event->name);
+ r = rename_netif(event);
+ if (r >= 0) {
+ log_debug("renamed netif to '%s'", event->name);
/* remember old name */
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));
+ log_debug("changed devpath to '%s'", 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);
}
}
- 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 */
udev_device_unref(event->dev_db);
event->dev_db = NULL;
}
- return err;
}
void udev_event_execute_run(struct udev_event *event, const sigset_t *sigmask)
char **envp;
if (event->exec_delay > 0) {
- log_debug("delay execution of '%s'\n", program);
+ log_debug("delay execution of '%s'", program);
sleep(event->exec_delay);
}
~ianmdlvl / elogind.git / blobdiff