*
* Copyright (C) 2008 by Bernhard Fischer
*
+ * Some helper functions from bridge-utils are
+ * Copyright (C) 2000 Lennert Buytenhek
+ *
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* This applet currently uses only the ioctl interface and no sysfs at all.
#include <linux/sockios.h>
#include <net/if.h>
+/* Maximum number of ports supported per bridge interface. */
+#ifndef MAX_PORTS
+#define MAX_PORTS 32
+#endif
+
+/* Use internal number parsing and not the "exact" conversion. */
+/* #define BRCTL_USE_INTERNAL 0 */ /* use exact conversion */
+#define BRCTL_USE_INTERNAL 1
+
#ifdef ENABLE_FEATURE_BRCTL_SHOW
#error Remove these
#endif
#define ENABLE_FEATURE_BRCTL_SHOW 0
#define USE_FEATURE_BRCTL_SHOW(...)
-#if 0
-#define ENABLE_FEATURE_BRCTL_FANCY 0
-#if ENABLE_FEATURE_BRCTL_FANCY
-#define USE_FEATURE_BRCTL_FANCY(...) __VA_ARGS__
-#else
-#define USE_FEATURE_BRCTL_FANCY(...)
-#endif
-#endif
+
#if ENABLE_FEATURE_BRCTL_FANCY
#include <linux/if_bridge.h>
/* FIXME: These 4 funcs are not really clean and could be improved */
const char *time_str)
{
double secs;
+#if BRCTL_USE_INTERNAL
+ if (!(secs = /*bb_*/strtod(time_str, NULL)))
+#else
if (sscanf(time_str, "%lf", &secs) != 1)
+#endif
bb_error_msg_and_die (bb_msg_invalid_arg, time_str, "timespec");
tv->tv_sec = secs;
tv->tv_usec = 1000000 * (secs - tv->tv_sec);
return jif/10000;
}
-# ifdef UNUSED && 00
+# if 00
static void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
{
unsigned long long tvusec;
strtotimeval(&tv, time_str);
return __tv_to_jiffies(&tv);
}
+
+static void arm_ioctl(unsigned long *args,
+ unsigned long arg0, unsigned long arg1, unsigned long arg2)
+{
+ args[0] = arg0;
+ args[1] = arg1;
+ args[2] = arg2;
+ args[3] = 0;
+}
#endif
static const char keywords[] ALIGN1 =
"addbr\0" "delbr\0" "addif\0" "delif\0"
USE_FEATURE_BRCTL_FANCY(
+ "stp\0"
"setageing\0" "setfd\0" "sethello\0" "setmaxage\0"
"setpathcost\0" "setportprio\0" "setbridgeprio\0"
- "stp\0"
)
USE_FEATURE_BRCTL_SHOW("showmacs\0" "show\0");
enum { ARG_addbr = 0, ARG_delbr, ARG_addif, ARG_delif
USE_FEATURE_BRCTL_FANCY(,
+ ARG_stp,
ARG_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage,
- ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio,
- ARG_stp
+ ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio
)
USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) };
smallint key;
struct ifreq ifr;
static char info[] = "bridge %s\0 iface %s";
- char *br;
+ char *br, *brif;
+#if ENABLE_FEATURE_BRCTL_FANCY
+ unsigned long args[4] = {0, 0, 0, 0};
+ int port;
+ int tmp;
+#endif
argv++;
while (*argv) {
bb_show_usage();
safe_strncpy(ifr.ifr_name, br, IFNAMSIZ);
if (key == ARG_addif || key == ARG_delif) { /* addif or delif */
- char *brif;
-
brif = *(argv++);
if (!(ifr.ifr_ifindex = if_nametoindex(brif))) {
bb_perror_msg_and_die(info+11, brif);
ioctl_or_perror_and_die(fd,
key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
&ifr, info, br);
+ goto done;
}
#if ENABLE_FEATURE_BRCTL_FANCY
- if (key - ARG_delif < 5) { /* time related ops */
+ ifr.ifr_data = (char *) &args;
+ if (key == ARG_stp) { /* stp */
+ /* FIXME: parsing yes/y/on/1 versus no/n/off/0 is too involved */
+ arm_ioctl(args, BRCTL_SET_BRIDGE_STP_STATE,
+ (unsigned)(**argv - '0'), 0);
+ goto fire;
+ }
+ if ((unsigned)(key - ARG_stp) < 5) { /* time related ops */
unsigned long op = (key == ARG_setageing) ? BRCTL_SET_AGEING_TIME :
(key == ARG_setfd) ? BRCTL_SET_BRIDGE_FORWARD_DELAY:
(key == ARG_sethello) ? BRCTL_SET_BRIDGE_HELLO_TIME:
(key == ARG_setmaxage) ? BRCTL_SET_BRIDGE_MAX_AGE :
- -1/*will never be used */;
- unsigned long jiff = str_to_jiffies (*(argv++));
- unsigned long args[4] = {op, jiff, 0, 0};
- ifr.ifr_data = (char *) &args;
+ -1/* will never be used */;
+ arm_ioctl(args, op, str_to_jiffies (*argv), 0);
+ goto fire;
+ }
+ port = -1;
+ if (key == ARG_setpathcost || key == ARG_setportprio) {/* get portnum */
+ int ifidx[MAX_PORTS];
+ unsigned i;
+
+ if (!(port = if_nametoindex(*argv)))
+ bb_error_msg_and_die(bb_msg_invalid_arg, *argv, "port");
+ argv++;
+ memset(ifidx, 0, sizeof ifidx);
+ arm_ioctl(args, BRCTL_GET_PORT_LIST, (unsigned long)ifidx,
+ MAX_PORTS);
xioctl(fd, SIOCDEVPRIVATE, &ifr);
+ for (i = 0; i < MAX_PORTS; i++)
+ if (ifidx[i] == port) {
+ port = i;
+ break;
+ }
}
+ if (key == ARG_setpathcost
+ || key == ARG_setportprio || key == ARG_setbridgeprio) {
+ unsigned long op = (key == ARG_setpathcost) ? BRCTL_SET_PATH_COST :
+ (key == ARG_setportprio) ? BRCTL_SET_PORT_PRIORITY :
+ (key == ARG_setbridgeprio) ? BRCTL_SET_BRIDGE_PRIORITY :
+ -1/* will never be used */;
+ unsigned long arg1 = port;
+ unsigned long arg2;
+# if BRCTL_USE_INTERNAL
+ tmp = xatoi(*argv);
+# else
+ if (sscanf(*argv, "%i", &tmp) != 1)
+ bb_error_msg_and_die(bb_msg_invalid_arg, *argv,
+ key == ARG_setpathcost ? "cost" : "prio");
+# endif
+ if (key == ARG_setbridgeprio) {
+ arg1 = tmp;
+ arg2 = 0;
+ } else
+ arg2 = tmp;
+ arm_ioctl(args, op, arg1, arg2);
+ }
+ fire:
+ /* Execute the previously set command. */
+ xioctl(fd, SIOCDEVPRIVATE, &ifr);
+ argv++;
#endif
done:
if (ENABLE_FEATURE_CLEAN_UP)
close(fd);
}
- out:
+USE_FEATURE_BRCTL_SHOW(out:)
return EXIT_SUCCESS;
}
projects / oweals / busybox.git / blobdiff