diff options
| -rw-r--r-- | include/applets.h | 1 | ||||
| -rw-r--r-- | include/usage.h | 10 | ||||
| -rw-r--r-- | networking/Config.in | 6 | ||||
| -rw-r--r-- | networking/Kbuild | 1 | ||||
| -rw-r--r-- | networking/brctl.c | 87 |
5 files changed, 105 insertions, 0 deletions
diff --git a/include/applets.h b/include/applets.h index 4934d18..830ff28 100644 --- a/include/applets.h +++ b/include/applets.h @@ -86,6 +86,7 @@ USE_AWK(APPLET_NOEXEC(awk, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awk)) USE_BASENAME(APPLET_NOFORK(basename, basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER, basename)) USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER)) //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER)) +USE_BRCTL(APPLET(brctl, _BB_DIR_USR_SBIN, _BB_SUID_NEVER)) USE_BUNZIP2(APPLET(bunzip2, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) USE_BUNZIP2(APPLET_ODDNAME(bzcat, bunzip2, _BB_DIR_USR_BIN, _BB_SUID_NEVER, bzcat)) USE_BZIP2(APPLET(bzip2, _BB_DIR_USR_BIN, _BB_SUID_NEVER)) diff --git a/include/usage.h b/include/usage.h index 464fb61..cb8bd2a 100644 --- a/include/usage.h +++ b/include/usage.h @@ -119,6 +119,16 @@ "$ basename /foo/bar.txt .txt\n" \ "bar" +#define brctl_trivial_usage \ + "COMMAND [BRIDGE [INTERFACE]]" +#define brctl_full_usage \ + "Manage ethernet bridges." \ + "\n\nCommands:\n" \ + " addbr <bridge> Create <bridge>\n" \ + " delbr <bridge> Delete <bridge>\n" \ + " addif <bridge> <iface> Add <iface> to <bridge>\n" \ + " delif <bridge> <iface> Delete <iface> from <bridge>" + #define bunzip2_trivial_usage \ "[OPTION]... [FILE]" #define bunzip2_full_usage \ diff --git a/networking/Config.in b/networking/Config.in index 5a76604..83579bc 100644 --- a/networking/Config.in +++ b/networking/Config.in @@ -47,6 +47,12 @@ config ARPING help Ping hosts by ARP packets. +config BRCTL + bool "brctl" + default n + help + Manage ethernet bridges. + config DNSD bool "dnsd" default n diff --git a/networking/Kbuild b/networking/Kbuild index 23968a8..3bcbe02 100644 --- a/networking/Kbuild +++ b/networking/Kbuild @@ -7,6 +7,7 @@ lib-y:= lib-$(CONFIG_ARP) += arp.o interface.o lib-$(CONFIG_ARPING) += arping.o +lib-$(CONFIG_BRCTL) += brctl.o lib-$(CONFIG_DNSD) += dnsd.o lib-$(CONFIG_ETHER_WAKE) += ether-wake.o lib-$(CONFIG_FAKEIDENTD) += isrv_identd.o isrv.o diff --git a/networking/brctl.c b/networking/brctl.c new file mode 100644 index 0000000..21d528f --- /dev/null +++ b/networking/brctl.c @@ -0,0 +1,87 @@ +/* vi: set sw=4 ts=4: */ +/* + * Small implementation of brctl for busybox. + * + * Copyright (C) 2008 by Bernhard Fischer + * + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ +#include "libbb.h" +#include <linux/sockios.h> +#include <net/if.h> + +#ifdef ENABLE_FEATURE_BRCTL_SHOW +#error Remove these +#endif +#define ENABLE_FEATURE_BRCTL_SHOW 0 +#define USE_FEATURE_BRCTL_SHOW(...) + + +/* Fancy diagnostics -- printing add/del -- costs 49 bytes. */ +#if 0 +#define BRCTL_VERBOSE(...) __VA_ARGS__ +#else +#define BRCTL_VERBOSE(...) +#endif + +int brctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; +int brctl_main(int argc, char **argv) +{ + int fd; + static const char keywords[] ALIGN1 = + "addbr\0" "delbr\0" "addif\0" "delif\0" + USE_FEATURE_BRCTL_SHOW("show\0"); + enum { ARG_addbr = 1, ARG_delbr, ARG_addif, ARG_delif + USE_FEATURE_BRCTL_SHOW(, ARG_show) }; + smalluint key; + static char info[] = BRCTL_VERBOSE("%s ")"bridge %s\0 iface %s"; + + argv++; + while (*argv) { + BRCTL_VERBOSE(char *op;) + + key = index_in_strings(keywords, *argv) + 1; + if (key == 0) /* no match found in keywords array, bail out. */ + bb_error_msg_and_die(bb_msg_invalid_arg, *argv, applet_name); + argv++; +#if ENABLE_FEATURE_BRCTL_SHOW + if (key == ARG_show) { /* show */ + ; + } +#endif + BRCTL_VERBOSE(op = (char*)((key % 2) ? "add" : "del");) + fd = xsocket(AF_INET, SOCK_STREAM, 0); + if (key < 3) {/* addbr or delbr */ + char *br; + + br = *(argv++); + if (ioctl(fd, key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR, br) < 0) + { + info[9 BRCTL_VERBOSE(+3)] = '\0'; + bb_perror_msg_and_die(info, BRCTL_VERBOSE(op,) br); + } + } + if (key > 2) { /* addif or delif */ + struct ifreq ifr; + char *br, *brif; + + br = *(argv++); + if (!*argv) + bb_show_usage(); + brif = *(argv++); + + if (!(ifr.ifr_ifindex = if_nametoindex(brif))) { + bb_perror_msg_and_die(info+11 BRCTL_VERBOSE(+3), brif); + } + safe_strncpy(ifr.ifr_name, br, IFNAMSIZ); + if (ioctl(fd, + key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF, &ifr) < 0) { + info[9 BRCTL_VERBOSE(+3)] = ','; + bb_perror_msg_and_die (info, BRCTL_VERBOSE(op,) br, brif); + } + } + if (ENABLE_FEATURE_CLEAN_UP) + close(fd); + } + return EXIT_SUCCESS; +} |