tc: enables this applet
function old new delta tc_main - 946 +946 cbq_print_opt - 517 +517 print_qdisc - 475 +475 print_class - 359 +359 llproto_names - 264 +264 packed_usage 31853 32066 +213 ll_proto_a2n - 112 +112 llproto_ids - 86 +86 print_tc_classid - 82 +82 static.objects - 20 +20 static._q_ - 16 +16 applet_main 1564 1568 +4 print_filter - 3 +3 applet_names 2708 2711 +3 ------------------------------------------------------------------------------ (add/remove: 13/0 grow/shrink: 3/0 up/down: 3100/0) Total: 3100 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
d75f9081d4
commit
a034cab095
106
networking/tc.c
106
networking/tc.c
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@ -6,22 +6,20 @@
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*
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* Bernhard Reutner-Fischer adjusted for busybox
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*/
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//config:config TC
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//config: bool "tc (3.1 kb)"
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//config: default y
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//config: help
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//config: Show / manipulate traffic control settings
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//config:
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//config:config FEATURE_TC_INGRESS
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//config: bool "Enable ingress"
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//config: default y
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//config: depends on TC
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/* Was disabled in 2008 by Bernhard, not known why.
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--//config:#config TC
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--//config:# bool "tc"
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--//config:# default y
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--//config:# help
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--//config:# Show / manipulate traffic control settings
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--//config:#
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--//config:#config FEATURE_TC_INGRESS
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--//config:# default y
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--//config:# depends on TC
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--
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--//applet:IF_TC(APPLET(tc, BB_DIR_SBIN, BB_SUID_DROP))
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--
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--//kbuild:lib-$(CONFIG_TC) += tc.o
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*/
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//applet:IF_TC(APPLET(tc, BB_DIR_SBIN, BB_SUID_DROP))
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//kbuild:lib-$(CONFIG_TC) += tc.o
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//usage:#define tc_trivial_usage
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/* //usage: "[OPTIONS] OBJECT CMD [dev STRING]" */
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@ -52,6 +50,17 @@
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#include "libiproute/rt_names.h"
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#include <linux/pkt_sched.h> /* for the TC_H_* macros */
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/* This is the deprecated multiqueue interface */
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#ifndef TCA_PRIO_MAX
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enum
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{
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TCA_PRIO_UNSPEC,
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TCA_PRIO_MQ,
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__TCA_PRIO_MAX
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};
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#define TCA_PRIO_MAX (__TCA_PRIO_MAX - 1)
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#endif
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#define parse_rtattr_nested(tb, max, rta) \
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(parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)))
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@ -184,11 +193,13 @@ static void print_rate(char *buf, int len, uint32_t rate)
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}
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}
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#if 0
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/* This is "pfifo_fast". */
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static int prio_parse_opt(int argc, char **argv, struct nlmsghdr *n)
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{
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return 0;
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}
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#endif
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static int prio_print_opt(struct rtattr *opt)
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{
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int i;
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@ -211,11 +222,13 @@ static int prio_print_opt(struct rtattr *opt)
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return 0;
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}
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#if 0
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/* Class Based Queue */
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static int cbq_parse_opt(int argc, char **argv, struct nlmsghdr *n)
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{
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return 0;
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}
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#endif
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static int cbq_print_opt(struct rtattr *opt)
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{
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struct rtattr *tb[TCA_CBQ_MAX+1];
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@ -308,8 +321,10 @@ static int cbq_print_opt(struct rtattr *opt)
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return 0;
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}
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static int print_qdisc(const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
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static FAST_FUNC int print_qdisc(
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const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr,
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void *arg UNUSED_PARAM)
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{
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struct tcmsg *msg = NLMSG_DATA(hdr);
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int len = hdr->nlmsg_len;
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@ -364,8 +379,10 @@ static int print_qdisc(const struct sockaddr_nl *who UNUSED_PARAM,
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return 0;
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}
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static int print_class(const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
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static FAST_FUNC int print_class(
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const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr,
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void *arg UNUSED_PARAM)
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{
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struct tcmsg *msg = NLMSG_DATA(hdr);
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int len = hdr->nlmsg_len;
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@ -432,8 +449,10 @@ static int print_class(const struct sockaddr_nl *who UNUSED_PARAM,
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return 0;
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}
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static int print_filter(const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr, void *arg UNUSED_PARAM)
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static FAST_FUNC int print_filter(
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const struct sockaddr_nl *who UNUSED_PARAM,
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struct nlmsghdr *hdr UNUSED_PARAM,
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void *arg UNUSED_PARAM)
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{
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return 0;
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}
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@ -451,6 +470,12 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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"replace\0"
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"show\0""list\0"
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;
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enum {
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CMD_add = 0, CMD_del, CMD_change,
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CMD_link,
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CMD_replace,
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CMD_show
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};
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static const char args[] ALIGN1 =
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"dev\0" /* qdisc, class, filter */
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"root\0" /* class, filter */
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@ -460,9 +485,15 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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"classid\0" /* change: for class use "handle" */
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"preference\0""priority\0""protocol\0" /* filter */
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;
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enum { CMD_add = 0, CMD_del, CMD_change, CMD_link, CMD_replace, CMD_show };
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enum { ARG_dev = 0, ARG_root, ARG_parent, ARG_qdisc,
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ARG_handle, ARG_classid, ARG_pref, ARG_prio, ARG_proto};
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enum {
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ARG_dev = 0,
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ARG_root,
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ARG_parent,
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ARG_qdisc,
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ARG_handle,
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ARG_classid,
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ARG_pref, ARG_prio, ARG_proto
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};
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struct rtnl_handle rth;
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struct tcmsg msg;
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int ret, obj, cmd, arg;
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@ -487,9 +518,12 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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invarg_1_to_2(*argv, argv[-1]);
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argv++;
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}
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memset(&msg, 0, sizeof(msg));
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msg.tcm_family = AF_UNSPEC;
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if (AF_UNSPEC != 0)
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msg.tcm_family = AF_UNSPEC;
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ll_init_map(&rth);
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while (*argv) {
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arg = index_in_substrings(args, *argv);
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if (arg == ARG_dev) {
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@ -526,7 +560,8 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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msg.tcm_parent = TC_H_ROOT;
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if (obj == OBJ_filter)
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filter_parent = TC_H_ROOT;
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} else if (arg == ARG_parent) {
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} else
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if (arg == ARG_parent) {
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uint32_t handle;
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if (msg.tcm_parent)
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duparg(*argv, "parent");
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@ -535,23 +570,31 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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msg.tcm_parent = handle;
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if (obj == OBJ_filter)
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filter_parent = handle;
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} else if (arg == ARG_handle) { /* filter::list */
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} else
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if (arg == ARG_handle) { /* filter::list */
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if (msg.tcm_handle)
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duparg(*argv, "handle");
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/* reject LONG_MIN || LONG_MAX */
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/* TODO: for fw
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slash = strchr(handle, '/');
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if (slash != NULL)
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*slash = '\0';
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*slash = '\0';
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*/
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msg.tcm_handle = get_u32(*argv, "handle");
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/* if (slash) {if (get_u32(uint32_t &mask, slash+1, NULL)) inv mask; addattr32(n, MAX_MSG, TCA_FW_MASK, mask); */
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} else if (arg == ARG_classid && obj == OBJ_class && cmd == CMD_change){
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} else if (arg == ARG_pref || arg == ARG_prio) { /* filter::list */
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} else
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if (arg == ARG_classid
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&& obj == OBJ_class
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&& cmd == CMD_change
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) {
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/* TODO */
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} else
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if (arg == ARG_pref || arg == ARG_prio) { /* filter::list */
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if (filter_prio)
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duparg(*argv, "priority");
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filter_prio = get_u32(*argv, "priority");
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} else if (arg == ARG_proto) { /* filter::list */
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} else
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if (arg == ARG_proto) { /* filter::list */
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uint16_t tmp;
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if (filter_proto)
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duparg(*argv, "protocol");
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@ -560,6 +603,7 @@ int tc_main(int argc UNUSED_PARAM, char **argv)
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filter_proto = tmp;
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}
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}
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if (cmd >= CMD_show) { /* show or list */
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if (obj == OBJ_filter)
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msg.tcm_info = TC_H_MAKE(filter_prio<<16, filter_proto);
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