int dhcp_identifier_set_iaid(int ifindex, uint8_t *mac, size_t mac_len, void *_id) {
#if 0 /* NM_IGNORED */
/* name is a pointer to memory in the udev_device struct, so must
have the same scope */
_cleanup_udev_device_unref_ struct udev_device *device = NULL;
#else /* NM_IGNORED */
char name_buf[IF_NAMESIZE];
#endif /* NM_IGNORED */
const char *name = NULL;
uint64_t id;
#if 0 /* NM_IGNORED */
if (detect_container() <= 0) {
/* not in a container, udev will be around */
_cleanup_udev_unref_ struct udev *udev;
char ifindex_str[2 + DECIMAL_STR_MAX(int)];
udev = udev_new();
if (!udev)
return -ENOMEM;
sprintf(ifindex_str, "n%d", ifindex);
device = udev_device_new_from_device_id(udev, ifindex_str);
if (device) {
if (udev_device_get_is_initialized(device) <= 0)
/* not yet ready */
return -EBUSY;
name = net_get_name(device);
}
}
/* move any old watches directory out of the way, and then restore
* the watches
*/
void udev_watch_restore(struct udev *udev)
{
char filename[UTIL_PATH_SIZE], oldname[UTIL_PATH_SIZE];
if (inotify_fd < 0)
return;
util_strscpyl(oldname, sizeof(oldname), udev_get_run_path(udev), "/watch.old", NULL);
util_strscpyl(filename, sizeof(filename), udev_get_run_path(udev), "/watch", NULL);
if (rename(filename, oldname) == 0) {
DIR *dir;
struct dirent *ent;
dir = opendir(oldname);
if (dir == NULL) {
err(udev, "unable to open old watches dir '%s', old watches will not be restored: %m", oldname);
return;
}
for (ent = readdir(dir); ent != NULL; ent = readdir(dir)) {
char device[UTIL_PATH_SIZE];
char *s;
size_t l;
ssize_t len;
struct udev_device *dev;
if (ent->d_name[0] == '.')
continue;
s = device;
l = util_strpcpy(&s, sizeof(device), udev_get_sys_path(udev));
len = readlinkat(dirfd(dir), ent->d_name, s, l);
if (len <= 0 || len == (ssize_t)l)
goto unlink;
s[len] = '\0';
dev = udev_device_new_from_device_id(udev, s);
if (dev == NULL)
goto unlink;
info(udev, "restoring old watch on '%s'\n", udev_device_get_devnode(dev));
udev_watch_begin(udev, dev);
udev_device_unref(dev);
unlink:
unlinkat(dirfd(dir), ent->d_name, 0);
}
closedir(dir);
rmdir(oldname);
} else if (errno != ENOENT) {
err(udev, "unable to move watches dir '%s', old watches will not be restored: %m", filename);
}
}
/* find device node of device with highest priority */
static const char *link_find_prioritized(struct udev_device *dev, bool add, const char *stackdir, char *buf, size_t bufsize)
{
struct udev *udev = udev_device_get_udev(dev);
DIR *dir;
int priority = 0;
const char *target = NULL;
if (add) {
priority = udev_device_get_devlink_priority(dev);
util_strscpy(buf, bufsize, udev_device_get_devnode(dev));
target = buf;
}
dir = opendir(stackdir);
if (dir == NULL)
return target;
for (;;) {
struct udev_device *dev_db;
struct dirent *dent;
dent = readdir(dir);
if (dent == NULL || dent->d_name[0] == '\0')
break;
if (dent->d_name[0] == '.')
continue;
info(udev, "found '%s' claiming '%s'\n", dent->d_name, stackdir);
/* did we find ourself? */
if (strcmp(dent->d_name, udev_device_get_id_filename(dev)) == 0)
continue;
dev_db = udev_device_new_from_device_id(udev, dent->d_name);
if (dev_db != NULL) {
const char *devnode;
devnode = udev_device_get_devnode(dev_db);
if (devnode != NULL) {
dbg(udev, "compare priority of '%s'(%i) > '%s'(%i)\n", target, priority,
udev_device_get_devnode(dev_db), udev_device_get_devlink_priority(dev_db));
if (target == NULL || udev_device_get_devlink_priority(dev_db) > priority) {
info(udev, "'%s' claims priority %i for '%s'\n",
udev_device_get_syspath(dev_db), udev_device_get_devlink_priority(dev_db), stackdir);
priority = udev_device_get_devlink_priority(dev_db);
util_strscpy(buf, bufsize, devnode);
target = buf;
}
}
udev_device_unref(dev_db);
}
}
closedir(dir);
return target;
}
/* find device node of device with highest priority */
static const char *link_find_prioritized(struct udev_device *dev, bool add, const char *stackdir, char *buf, size_t bufsize) {
struct udev *udev = udev_device_get_udev(dev);
DIR *dir;
struct dirent *dent;
int priority = 0;
const char *target = NULL;
if (add) {
priority = udev_device_get_devlink_priority(dev);
strscpy(buf, bufsize, udev_device_get_devnode(dev));
target = buf;
}
dir = opendir(stackdir);
if (dir == NULL)
return target;
FOREACH_DIRENT_ALL(dent, dir, break) {
struct udev_device *dev_db;
if (dent->d_name[0] == '\0')
break;
if (dent->d_name[0] == '.')
continue;
log_debug("found '%s' claiming '%s'", dent->d_name, stackdir);
/* did we find ourself? */
if (streq(dent->d_name, udev_device_get_id_filename(dev)))
continue;
dev_db = udev_device_new_from_device_id(udev, dent->d_name);
if (dev_db != NULL) {
const char *devnode;
devnode = udev_device_get_devnode(dev_db);
if (devnode != NULL) {
if (target == NULL || udev_device_get_devlink_priority(dev_db) > priority) {
log_debug("'%s' claims priority %i for '%s'",
udev_device_get_syspath(dev_db), udev_device_get_devlink_priority(dev_db), stackdir);
priority = udev_device_get_devlink_priority(dev_db);
strscpy(buf, bufsize, devnode);
target = buf;
}
}
udev_device_unref(dev_db);
}
}
closedir(dir);
return target;
}
struct udev_device *udev_watch_lookup(struct udev *udev, int wd) {
char filename[UTIL_PATH_SIZE];
char device[UTIL_NAME_SIZE];
ssize_t len;
if (inotify_fd < 0 || wd < 0)
return NULL;
snprintf(filename, sizeof(filename), "/run/udev/watch/%d", wd);
len = readlink(filename, device, sizeof(device));
if (len <= 0 || (size_t)len == sizeof(device))
return NULL;
device[len] = '\0';
return udev_device_new_from_device_id(udev, device);
}
/* move any old watches directory out of the way, and then restore
* the watches
*/
void udev_watch_restore(struct udev *udev)
{
if (inotify_fd < 0)
return;
if (rename("/run/udev/watch", "/run/udev/watch.old") == 0) {
DIR *dir;
struct dirent *ent;
dir = opendir("/run/udev/watch.old");
if (dir == NULL) {
log_error("unable to open old watches dir /run/udev/watch.old; old watches will not be restored: %m");
return;
}
for (ent = readdir(dir); ent != NULL; ent = readdir(dir)) {
char device[UTIL_PATH_SIZE];
ssize_t len;
struct udev_device *dev;
if (ent->d_name[0] == '.')
continue;
len = readlinkat(dirfd(dir), ent->d_name, device, sizeof(device));
if (len <= 0 || len == (ssize_t)sizeof(device))
goto unlink;
device[len] = '\0';
dev = udev_device_new_from_device_id(udev, device);
if (dev == NULL)
goto unlink;
log_debug("restoring old watch on '%s'", udev_device_get_devnode(dev));
udev_watch_begin(udev, dev);
udev_device_unref(dev);
unlink:
unlinkat(dirfd(dir), ent->d_name, 0);
}
closedir(dir);
rmdir("/run/udev/watch.old");
} else if (errno != ENOENT) {
log_error("unable to move watches dir /run/udev/watch; old watches will not be restored: %m");
}
}
struct udev_device *udev_watch_lookup(struct udev *udev, int wd)
{
char filename[UTIL_PATH_SIZE];
char majmin[UTIL_PATH_SIZE];
char *s;
size_t l;
ssize_t len;
if (inotify_fd < 0 || wd < 0)
return NULL;
snprintf(filename, sizeof(filename), "%s/watch/%d", udev_get_run_path(udev), wd);
s = majmin;
l = util_strpcpy(&s, sizeof(majmin), udev_get_sys_path(udev));
len = readlink(filename, s, l);
if (len <= 0 || (size_t)len == l)
return NULL;
s[len] = '\0';
return udev_device_new_from_device_id(udev, s);
}
static int list_links(int argc, char *argv[], void *userdata) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
_cleanup_udev_unref_ struct udev *udev = NULL;
_cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
_cleanup_free_ LinkInfo *links = NULL;
int r, c, i;
pager_open_if_enabled();
r = sd_rtnl_open(&rtnl, 0);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
udev = udev_new();
if (!udev)
return log_error_errno(errno, "Failed to connect to udev: %m");
r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
if (r < 0)
return rtnl_log_create_error(r);
r = sd_rtnl_message_request_dump(req, true);
if (r < 0)
return rtnl_log_create_error(r);
r = sd_rtnl_call(rtnl, req, 0, &reply);
if (r < 0)
return log_error_errno(r, "Failed to enumerate links: %m");
if (arg_legend)
printf("%3s %-16s %-18s %-11s %-10s\n", "IDX", "LINK", "TYPE", "OPERATIONAL", "SETUP");
c = decode_and_sort_links(reply, &links);
if (c < 0)
return rtnl_log_parse_error(c);
for (i = 0; i < c; i++) {
_cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
const char *on_color_operational, *off_color_operational,
*on_color_setup, *off_color_setup;
char devid[2 + DECIMAL_STR_MAX(int)];
_cleanup_free_ char *t = NULL;
sd_network_link_get_operational_state(links[i].ifindex, &operational_state);
operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
sd_network_link_get_setup_state(links[i].ifindex, &setup_state);
setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
sprintf(devid, "n%i", links[i].ifindex);
d = udev_device_new_from_device_id(udev, devid);
link_get_type_string(links[i].iftype, d, &t);
printf("%3i %-16s %-18s %s%-11s%s %s%-10s%s\n",
links[i].ifindex, links[i].name, strna(t),
on_color_operational, strna(operational_state), off_color_operational,
on_color_setup, strna(setup_state), off_color_setup);
}
if (arg_legend)
printf("\n%i links listed.\n", c);
return 0;
}
static int builtin_hwdb(struct udev_device *dev, int argc, char *argv[], bool test) {
static const struct option options[] = {
{ "filter", required_argument, NULL, 'f' },
{ "device", required_argument, NULL, 'd' },
{ "subsystem", required_argument, NULL, 's' },
{ "lookup-prefix", required_argument, NULL, 'p' },
{}
};
const char *filter = NULL;
const char *device = NULL;
const char *subsystem = NULL;
const char *prefix = NULL;
struct udev_device *srcdev;
if (!hwdb)
return EXIT_FAILURE;
for (;;) {
int option;
option = getopt_long(argc, argv, "f:d:s:p:", options, NULL);
if (option == -1)
break;
switch (option) {
case 'f':
filter = optarg;
break;
case 'd':
device = optarg;
break;
case 's':
subsystem = optarg;
break;
case 'p':
prefix = optarg;
break;
}
}
/* query a specific key given as argument */
if (argv[optind]) {
if (udev_builtin_hwdb_lookup(dev, prefix, argv[optind], filter, test) > 0)
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
/* read data from another device than the device we will store the data */
if (device) {
srcdev = udev_device_new_from_device_id(udev_device_get_udev(dev), device);
if (!srcdev)
return EXIT_FAILURE;
} else
srcdev = dev;
if (udev_builtin_hwdb_search(dev, srcdev, subsystem, prefix, filter, test) > 0)
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
static void dev_kmsg_record(Server *s, const char *p, size_t l) {
_cleanup_free_ char *message = NULL, *syslog_priority = NULL, *syslog_pid = NULL, *syslog_facility = NULL, *syslog_identifier = NULL, *source_time = NULL, *identifier = NULL, *pid = NULL;
struct iovec iovec[N_IOVEC_META_FIELDS + 7 + N_IOVEC_KERNEL_FIELDS + 2 + N_IOVEC_UDEV_FIELDS];
char *kernel_device = NULL;
unsigned long long usec;
size_t n = 0, z = 0, j;
int priority, r;
char *e, *f, *k;
uint64_t serial;
size_t pl;
assert(s);
assert(p);
if (l <= 0)
return;
e = memchr(p, ',', l);
if (!e)
return;
*e = 0;
r = safe_atoi(p, &priority);
if (r < 0 || priority < 0 || priority > 999)
return;
if (s->forward_to_kmsg && (priority & LOG_FACMASK) != LOG_KERN)
return;
l -= (e - p) + 1;
p = e + 1;
e = memchr(p, ',', l);
if (!e)
return;
*e = 0;
r = safe_atou64(p, &serial);
if (r < 0)
return;
if (s->kernel_seqnum) {
/* We already read this one? */
if (serial < *s->kernel_seqnum)
return;
/* Did we lose any? */
if (serial > *s->kernel_seqnum)
server_driver_message(s, 0,
"MESSAGE_ID=" SD_MESSAGE_JOURNAL_MISSED_STR,
LOG_MESSAGE("Missed %"PRIu64" kernel messages",
serial - *s->kernel_seqnum),
NULL);
/* Make sure we never read this one again. Note that
* we always store the next message serial we expect
* here, simply because this makes handling the first
* message with serial 0 easy. */
*s->kernel_seqnum = serial + 1;
}
l -= (e - p) + 1;
p = e + 1;
f = memchr(p, ';', l);
if (!f)
return;
/* Kernel 3.6 has the flags field, kernel 3.5 lacks that */
e = memchr(p, ',', l);
if (!e || f < e)
e = f;
*e = 0;
r = safe_atollu(p, &usec);
if (r < 0)
return;
l -= (f - p) + 1;
p = f + 1;
e = memchr(p, '\n', l);
if (!e)
return;
*e = 0;
pl = e - p;
l -= (e - p) + 1;
k = e + 1;
for (j = 0; l > 0 && j < N_IOVEC_KERNEL_FIELDS; j++) {
char *m;
/* Metadata fields attached */
if (*k != ' ')
break;
k++, l--;
e = memchr(k, '\n', l);
if (!e)
return;
*e = 0;
if (cunescape_length_with_prefix(k, e - k, "_KERNEL_", UNESCAPE_RELAX, &m) < 0)
break;
if (startswith(m, "_KERNEL_DEVICE="))
kernel_device = m + 15;
iovec[n++] = IOVEC_MAKE_STRING(m);
z++;
l -= (e - k) + 1;
k = e + 1;
}
if (kernel_device) {
struct udev_device *ud;
ud = udev_device_new_from_device_id(s->udev, kernel_device);
if (ud) {
const char *g;
struct udev_list_entry *ll;
char *b;
g = udev_device_get_devnode(ud);
if (g) {
b = strappend("_UDEV_DEVNODE=", g);
if (b) {
iovec[n++] = IOVEC_MAKE_STRING(b);
z++;
}
}
g = udev_device_get_sysname(ud);
if (g) {
b = strappend("_UDEV_SYSNAME=", g);
if (b) {
iovec[n++] = IOVEC_MAKE_STRING(b);
z++;
}
}
j = 0;
ll = udev_device_get_devlinks_list_entry(ud);
udev_list_entry_foreach(ll, ll) {
if (j > N_IOVEC_UDEV_FIELDS)
break;
g = udev_list_entry_get_name(ll);
if (g) {
b = strappend("_UDEV_DEVLINK=", g);
if (b) {
iovec[n++] = IOVEC_MAKE_STRING(b);
z++;
}
}
j++;
}
udev_device_unref(ud);
}
}
if (asprintf(&source_time, "_SOURCE_MONOTONIC_TIMESTAMP=%llu", usec) >= 0)
iovec[n++] = IOVEC_MAKE_STRING(source_time);
iovec[n++] = IOVEC_MAKE_STRING("_TRANSPORT=kernel");
if (asprintf(&syslog_priority, "PRIORITY=%i", priority & LOG_PRIMASK) >= 0)
iovec[n++] = IOVEC_MAKE_STRING(syslog_priority);
if (asprintf(&syslog_facility, "SYSLOG_FACILITY=%i", LOG_FAC(priority)) >= 0)
iovec[n++] = IOVEC_MAKE_STRING(syslog_facility);
if ((priority & LOG_FACMASK) == LOG_KERN)
iovec[n++] = IOVEC_MAKE_STRING("SYSLOG_IDENTIFIER=kernel");
else {
pl -= syslog_parse_identifier((const char**) &p, &identifier, &pid);
/* Avoid any messages we generated ourselves via
* log_info() and friends. */
if (pid && is_us(pid))
goto finish;
if (identifier) {
syslog_identifier = strappend("SYSLOG_IDENTIFIER=", identifier);
if (syslog_identifier)
iovec[n++] = IOVEC_MAKE_STRING(syslog_identifier);
}
if (pid) {
syslog_pid = strappend("SYSLOG_PID=", pid);
if (syslog_pid)
iovec[n++] = IOVEC_MAKE_STRING(syslog_pid);
}
}
if (cunescape_length_with_prefix(p, pl, "MESSAGE=", UNESCAPE_RELAX, &message) >= 0)
iovec[n++] = IOVEC_MAKE_STRING(message);
server_dispatch_message(s, iovec, n, ELEMENTSOF(iovec), NULL, NULL, priority, 0);
finish:
for (j = 0; j < z; j++)
free(iovec[j].iov_base);
}
