*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
+
+//usage:#define ifplugd_trivial_usage
+//usage: "[OPTIONS]"
+//usage:#define ifplugd_full_usage "\n\n"
+//usage: "Network interface plug detection daemon\n"
+//usage: "\n -n Don't daemonize"
+//usage: "\n -s Don't log to syslog"
+//usage: "\n -i IFACE Interface"
+//usage: "\n -f/-F Treat link detection error as link down/link up"
+//usage: "\n (otherwise exit on error)"
+//usage: "\n -a Don't up interface at each link probe"
+//usage: "\n -M Monitor creation/destruction of interface"
+//usage: "\n (otherwise it must exist)"
+//usage: "\n -r PROG Script to run"
+//usage: "\n -x ARG Extra argument for script"
+//usage: "\n -I Don't exit on nonzero exit code from script"
+//usage: "\n -p Don't run \"up\" script on startup"
+//usage: "\n -q Don't run \"down\" script on exit"
+//usage: "\n -l Always run script on startup"
+//usage: "\n -t SECS Poll time in seconds"
+//usage: "\n -u SECS Delay before running script after link up"
+//usage: "\n -d SECS Delay after link down"
+//usage: "\n -m MODE API mode (mii, priv, ethtool, wlan, iff, auto)"
+//usage: "\n -k Kill running daemon"
+
#include "libbb.h"
#include "fix_u32.h"
#include <linux/if.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
-#include <net/ethernet.h>
+#ifdef HAVE_NET_ETHERNET_H
+# include <net/ethernet.h>
+#endif
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/sockios.h>
static smallint detect_link_mii(void)
{
- struct ifreq ifreq;
- struct mii_ioctl_data *mii = (void *)&ifreq.ifr_data;
+ /* char buffer instead of bona-fide struct avoids aliasing warning */
+ char buf[sizeof(struct ifreq)];
+ struct ifreq *const ifreq = (void *)buf;
- set_ifreq_to_ifname(&ifreq);
+ struct mii_ioctl_data *mii = (void *)&ifreq->ifr_data;
- if (network_ioctl(SIOCGMIIPHY, &ifreq, "SIOCGMIIPHY") < 0) {
+ set_ifreq_to_ifname(ifreq);
+
+ if (network_ioctl(SIOCGMIIPHY, ifreq, "SIOCGMIIPHY") < 0) {
return IFSTATUS_ERR;
}
mii->reg_num = 1;
- if (network_ioctl(SIOCGMIIREG, &ifreq, "SIOCGMIIREG") < 0) {
+ if (network_ioctl(SIOCGMIIREG, ifreq, "SIOCGMIIREG") < 0) {
return IFSTATUS_ERR;
}
static smallint detect_link_priv(void)
{
- struct ifreq ifreq;
- struct mii_ioctl_data *mii = (void *)&ifreq.ifr_data;
+ /* char buffer instead of bona-fide struct avoids aliasing warning */
+ char buf[sizeof(struct ifreq)];
+ struct ifreq *const ifreq = (void *)buf;
- set_ifreq_to_ifname(&ifreq);
+ struct mii_ioctl_data *mii = (void *)&ifreq->ifr_data;
+
+ set_ifreq_to_ifname(ifreq);
- if (network_ioctl(SIOCDEVPRIVATE, &ifreq, "SIOCDEVPRIVATE") < 0) {
+ if (network_ioctl(SIOCDEVPRIVATE, ifreq, "SIOCDEVPRIVATE") < 0) {
return IFSTATUS_ERR;
}
mii->reg_num = 1;
- if (network_ioctl(SIOCDEVPRIVATE+1, &ifreq, "SIOCDEVPRIVATE+1") < 0) {
+ if (network_ioctl(SIOCDEVPRIVATE+1, ifreq, "SIOCDEVPRIVATE+1") < 0) {
return IFSTATUS_ERR;
}
applet_name = xasprintf("ifplugd(%s)", G.iface);
#if ENABLE_FEATURE_PIDFILE
- pidfile_name = xasprintf(_PATH_VARRUN"ifplugd.%s.pid", G.iface);
+ pidfile_name = xasprintf(CONFIG_PID_FILE_PATH "/ifplugd.%s.pid", G.iface);
pid_from_pidfile = read_pid(pidfile_name);
if (opts & FLAG_KILL) {
if (pid_from_pidfile > 0)
- kill(pid_from_pidfile, SIGQUIT);
+ /* Upstream tool use SIGINT for -k */
+ kill(pid_from_pidfile, SIGINT);
return EXIT_SUCCESS;
}