mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
- shrink a bit and implement time related fancy features. Improve help texts.
text data bss dec hex filename
253 20 0 273 111 networking/brctl.o.bare
613 20 0 633 279 networking/brctl.o.fancy-time
This commit is contained in:
Bernhard Reutner-Fischer
parent
78e1d58d3a
commit
1aac3ab49f
@ -127,8 +127,13 @@
|
||||
" 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>"
|
||||
|
||||
" delif <bridge> <iface> Delete <iface> from <bridge>" \
|
||||
USE_FEATURE_BRCTL_FANCY("\n" \
|
||||
" setageing <bridge <time> set ageing time\n" \
|
||||
" setfd <bridge <time> set bridge forward delay\n" \
|
||||
" sethello <bridge <time> set hello time\n" \
|
||||
" setmaxage <bridge <time> set max message age\n" \
|
||||
)
|
||||
#define bunzip2_trivial_usage \
|
||||
"[OPTION]... [FILE]"
|
||||
#define bunzip2_full_usage \
|
||||
|
||||
@ -52,6 +52,25 @@ config BRCTL
|
||||
default n
|
||||
help
|
||||
Manage ethernet bridges.
|
||||
Supports addbr/delbr and addif/delif.
|
||||
|
||||
#config FEATURE_BRCTL_SHOW
|
||||
# bool "support show, showmac and showstp"
|
||||
# default n
|
||||
# depends on BRCTL
|
||||
# help
|
||||
# Add support for option which print the current config:
|
||||
# showmacs, showstp, show
|
||||
|
||||
config FEATURE_BRCTL_FANCY
|
||||
bool "fancy options"
|
||||
default n
|
||||
depends on BRCTL
|
||||
help
|
||||
Add support for extended option like:
|
||||
setageing, setfd, sethello, setmaxage,
|
||||
setpathcost, setportprio, setbridgeprio,
|
||||
stp
|
||||
|
||||
config DNSD
|
||||
bool "dnsd"
|
||||
|
||||
@ -6,6 +6,9 @@
|
||||
*
|
||||
* 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.
|
||||
* At the time of this writing this was considered a feature.
|
||||
*/
|
||||
#include "libbb.h"
|
||||
#include <linux/sockios.h>
|
||||
#include <net/if.h>
|
||||
@ -15,72 +18,129 @@
|
||||
#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__
|
||||
#define ENABLE_FEATURE_BRCTL_FANCY 0
|
||||
#if ENABLE_FEATURE_BRCTL_FANCY
|
||||
#define USE_FEATURE_BRCTL_FANCY(...) __VA_ARGS__
|
||||
#else
|
||||
#define BRCTL_VERBOSE(...)
|
||||
#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 */
|
||||
static inline ALWAYS_INLINE void strtotimeval(struct timeval *tv,
|
||||
const char *time_str)
|
||||
{
|
||||
double secs;
|
||||
if (sscanf(time_str, "%lf", &secs) != 1)
|
||||
bb_error_msg_and_die (bb_msg_invalid_arg, time_str, "timespec");
|
||||
tv->tv_sec = secs;
|
||||
tv->tv_usec = 1000000 * (secs - tv->tv_sec);
|
||||
}
|
||||
|
||||
static inline ALWAYS_INLINE unsigned long __tv_to_jiffies(const struct timeval *tv)
|
||||
{
|
||||
unsigned long long jif;
|
||||
|
||||
jif = 1000000ULL * tv->tv_sec + tv->tv_usec;
|
||||
|
||||
return jif/10000;
|
||||
}
|
||||
# ifdef UNUSED && 00
|
||||
static void __jiffies_to_tv(struct timeval *tv, unsigned long jiffies)
|
||||
{
|
||||
unsigned long long tvusec;
|
||||
|
||||
tvusec = 10000ULL*jiffies;
|
||||
tv->tv_sec = tvusec/1000000;
|
||||
tv->tv_usec = tvusec - 1000000 * tv->tv_sec;
|
||||
}
|
||||
# endif
|
||||
static unsigned long str_to_jiffies(const char *time_str)
|
||||
{
|
||||
struct timeval tv;
|
||||
strtotimeval(&tv, time_str);
|
||||
return __tv_to_jiffies(&tv);
|
||||
}
|
||||
#endif
|
||||
|
||||
int brctl_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int brctl_main(int argc, char **argv)
|
||||
|
||||
int brctl_main(int argc ATTRIBUTE_UNUSED, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
||||
int brctl_main(int argc ATTRIBUTE_UNUSED, 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";
|
||||
USE_FEATURE_BRCTL_FANCY(
|
||||
"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_setageing, ARG_setfd, ARG_sethello, ARG_setmaxage,
|
||||
ARG_setpathcost, ARG_setportprio, ARG_setbridgeprio,
|
||||
ARG_stp
|
||||
)
|
||||
USE_FEATURE_BRCTL_SHOW(, ARG_showmacs, ARG_show) };
|
||||
smallint key;
|
||||
struct ifreq ifr;
|
||||
static char info[] = "bridge %s\0 iface %s";
|
||||
char *br;
|
||||
|
||||
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. */
|
||||
key = index_in_strings(keywords, *argv);
|
||||
if (key == -1) /* 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 */
|
||||
;
|
||||
goto out; /* FIXME: implement me! :) */
|
||||
}
|
||||
#endif
|
||||
BRCTL_VERBOSE(op = (char*)((key % 2) ? "add" : "del");)
|
||||
fd = xsocket(AF_INET, SOCK_STREAM, 0);
|
||||
br = *(argv++);
|
||||
|
||||
if (key < 3) { /* addbr or delbr */
|
||||
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 == ARG_addbr || key == ARG_delbr) { /* addbr or delbr */
|
||||
ioctl_or_perror_and_die(fd,
|
||||
key == ARG_addbr ? SIOCBRADDBR : SIOCBRDELBR,
|
||||
br, info, br);
|
||||
goto done;
|
||||
}
|
||||
if (key > 2) { /* addif or delif */
|
||||
struct ifreq ifr;
|
||||
if (!*argv) /* all but 'show' need at least one argument */
|
||||
bb_show_usage();
|
||||
safe_strncpy(ifr.ifr_name, br, IFNAMSIZ);
|
||||
if (key == ARG_addif || key == ARG_delif) { /* addif or delif */
|
||||
char *brif;
|
||||
|
||||
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);
|
||||
bb_perror_msg_and_die(info+11, brif);
|
||||
}
|
||||
ioctl_or_perror_and_die(fd,
|
||||
key == ARG_addif ? SIOCBRADDIF : SIOCBRDELIF,
|
||||
&ifr, info, br);
|
||||
}
|
||||
#if ENABLE_FEATURE_BRCTL_FANCY
|
||||
if (key - ARG_delif < 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;
|
||||
xioctl(fd, SIOCDEVPRIVATE, &ifr);
|
||||
}
|
||||
#endif
|
||||
done:
|
||||
if (ENABLE_FEATURE_CLEAN_UP)
|
||||
close(fd);
|
||||
}
|
||||
out:
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user