tls: can download kernels now :)

[oweals/busybox.git] / networking / ifenslave.c

diff --git a/networking/ifenslave.c b/networking/ifenslave.c
index 16fcd54f1054918a208614ef6482fc9a231b72c0..1cb765e230d83756ac85531e864f45b9d0e8a865 100644 (file)
--- a/networking/ifenslave.c
+++ b/networking/ifenslave.c
@@ -97,24 +97,60 @@
  *       - Code cleanup and style changes
  *         set version to 1.1.0
  */
+//config:config IFENSLAVE
+//config:      bool "ifenslave"
+//config:      default y
+//config:      select PLATFORM_LINUX
+//config:      help
+//config:        Userspace application to bind several interfaces
+//config:        to a logical interface (use with kernel bonding driver).
+
+//applet:IF_IFENSLAVE(APPLET(ifenslave, BB_DIR_SBIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_IFENSLAVE) += ifenslave.o interface.o
+
+//usage:#define ifenslave_trivial_usage
+//usage:       "[-cdf] MASTER_IFACE SLAVE_IFACE..."
+//usage:#define ifenslave_full_usage "\n\n"
+//usage:       "Configure network interfaces for parallel routing\n"
+//usage:     "\n       -c,--change-active      Change active slave"
+//usage:     "\n       -d,--detach             Remove slave interface from bonding device"
+//usage:     "\n       -f,--force              Force, even if interface is not Ethernet"
+/* //usage:  "\n       -r,--receive-slave      Create a receive-only slave" */
+//usage:
+//usage:#define ifenslave_example_usage
+//usage:       "To create a bond device, simply follow these three steps:\n"
+//usage:       "- ensure that the required drivers are properly loaded:\n"
+//usage:       "  # modprobe bonding ; modprobe <3c59x|eepro100|pcnet32|tulip|...>\n"
+//usage:       "- assign an IP address to the bond device:\n"
+//usage:       "  # ifconfig bond0 <addr> netmask <mask> broadcast <bcast>\n"
+//usage:       "- attach all the interfaces you need to the bond device:\n"
+//usage:       "  # ifenslave bond0 eth0 eth1 eth2\n"
+//usage:       "  If bond0 didn't have a MAC address, it will take eth0's. Then, all\n"
+//usage:       "  interfaces attached AFTER this assignment will get the same MAC addr.\n\n"
+//usage:       "  To detach a dead interface without setting the bond device down:\n"
+//usage:       "  # ifenslave -d bond0 eth1\n\n"
+//usage:       "  To set the bond device down and automatically release all the slaves:\n"
+//usage:       "  # ifconfig bond0 down\n\n"
+//usage:       "  To change active slave:\n"
+//usage:       "  # ifenslave -c bond0 eth0\n"
 
 #include "libbb.h"
 
 /* #include <net/if.h> - no. linux/if_bonding.h pulls in linux/if.h */
-#include <net/if_arp.h>
+#include <linux/if.h>
+//#include <net/if_arp.h> - not needed?
 #include <linux/if_bonding.h>
 #include <linux/sockios.h>
-
+#include "fix_u32.h" /* hack, so we may include kernel's ethtool.h */
+#include <linux/ethtool.h>
+#ifndef BOND_ABI_VERSION
+# define BOND_ABI_VERSION 2
+#endif
 #ifndef IFNAMSIZ
-#define IFNAMSIZ 16
+# define IFNAMSIZ 16
 #endif
 
-typedef uint64_t u64; /* hack, so we may include kernel's ethtool.h */
-typedef uint32_t u32; /* ditto */
-typedef uint16_t u16; /* ditto */
-typedef uint8_t u8;   /* ditto */
-#include <linux/ethtool.h>
-
 
 struct dev_data {
        struct ifreq mtu, flags, hwaddr;
@@ -245,7 +281,7 @@ static int set_if_addr(char *master_ifname, char *slave_ifname)
                if (res < 0) {
                        ifr.ifr_addr.sa_family = AF_INET;
                        memset(ifr.ifr_addr.sa_data, 0,
-                              sizeof(ifr.ifr_addr.sa_data));
+                               sizeof(ifr.ifr_addr.sa_data));
                }
 
                res = set_ifrname_and_do_ioctl(ifra[i].s_ioctl, &ifr, slave_ifname);
@@ -521,7 +557,7 @@ int ifenslave_main(int argc UNUSED_PARAM, char **argv)
 #ifdef WHY_BOTHER
        /* Neither -c[hange] nor -d[etach] -> it's "enslave" then;
         * and -f[orce] is not there too. Check that it's ethernet. */
-       if (!(opt & (OPT_d|OPT_c|OPT_f)) {
+       if (!(opt & (OPT_d|OPT_c|OPT_f))) {
                /* The family '1' is ARPHRD_ETHER for ethernet. */
                if (master.hwaddr.ifr_hwaddr.sa_family != 1) {
                        bb_error_msg_and_die(
@@ -552,8 +588,8 @@ int ifenslave_main(int argc UNUSED_PARAM, char **argv)
                                /* Can't work with this slave, */
                                /* remember the error and skip it */
                                bb_perror_msg(
-                                       "skipping %s: can't get flags",
-                                       slave_ifname);
+                                       "skipping %s: can't get %s",
+                                       slave_ifname, "flags");
                                res = rv;
                                continue;
                        }
@@ -570,8 +606,8 @@ int ifenslave_main(int argc UNUSED_PARAM, char **argv)
                                /* Can't work with this slave, */
                                /* remember the error and skip it */
                                bb_perror_msg(
-                                       "skipping %s: can't get settings",
-                                       slave_ifname);
+                                       "skipping %s: can't get %s",
+                                       slave_ifname, "settings");
                                res = rv;
                                continue;
                        }