8#include <netlink/cli/utils.h>
9#include <netlink/cli/tc.h>
10#include <netlink/route/qdisc/plug.h>
12static void print_usage(
void)
15"Usage: nl-qdisc-add [...] plug [OPTIONS]...\n"
18" --help Show this help text.\n"
19" --limit Maximum queue length in bytes.\n"
20" --buffer create a new buffer(plug) and queue incoming traffic into it.\n"
21" --release-one release traffic from previous buffer.\n"
22" --release-indefinite stop buffering and release all (buffered and new) packets.\n"
25" # Attach plug qdisc with 32KB queue size to ifb0\n"
26" nl-qdisc-add --dev=ifb0 --parent=root plug --limit=32768\n"
27" # Plug network traffic arriving at ifb0\n"
28" nl-qdisc-add --dev=ifb0 --parent=root --update plug --buffer\n"
29" # Unplug traffic arriving at ifb0 indefinitely\n"
30" nl-qdisc-add --dev=ifb0 --parent=root --update plug --release-indefinite\n\n"
31" # If operating in output buffering mode:\n"
32" # at time t=t0, create a new output buffer b0 to hold network output\n"
33" nl-qdisc-add --dev=ifb0 --parent=root --update plug --buffer\n\n"
34" # at time t=t1, take a checkpoint c0, create a new output buffer b1\n"
35" nl-qdisc-add --dev=ifb0 --parent=root --update plug --buffer\n"
36" # at time t=t1+r, after c0 is committed, release b0\n"
37" nl-qdisc-add --dev=ifb0 --parent=root --update plug --release-one\n\n"
38" # at time t=t2, take a checkpoint c1, create a new output buffer b2\n"
39" nl-qdisc-add --dev=ifb0 --parent=root --update plug --buffer\n"
40" # at time t=t2+r, after c1 is committed, release b1\n"
41" nl-qdisc-add --dev=ifb0 --parent=root --update plug --release-one\n");
44static void plug_parse_argv(
struct rtnl_tc *tc,
int argc,
char **argv)
53 ARG_RELEASE_ONE = 259,
54 ARG_RELEASE_INDEFINITE = 260,
56 static struct option long_opts[] = {
57 {
"help", 0, 0,
'h' },
58 {
"limit", 1, 0, ARG_LIMIT },
59 {
"buffer", 0, 0, ARG_BUFFER },
60 {
"release-one", 0, 0, ARG_RELEASE_ONE },
61 {
"release-indefinite", 0, 0, ARG_RELEASE_INDEFINITE },
65 c = getopt_long(argc, argv,
"h", long_opts, &optidx);
86 case ARG_RELEASE_INDEFINITE:
96 .tm_type = RTNL_TC_TYPE_QDISC,
97 .tm_parse_argv = plug_parse_argv,
100static void _nl_init plug_init(
void)
102 nl_cli_tc_register(&plug_module);
105static void _nl_exit plug_exit(
void)
107 nl_cli_tc_unregister(&plug_module);
uint32_t nl_cli_parse_u32(const char *arg)
Parse a text based 32 bit unsigned integer argument.
int rtnl_qdisc_plug_release_indefinite(struct rtnl_qdisc *qdisc)
Indefinitely unplug the qdisc, releasing all packets.
int rtnl_qdisc_plug_release_one(struct rtnl_qdisc *qdisc)
Unplug the qdisc, releasing packets from queue head to the last complete buffer, while new traffic co...
int rtnl_qdisc_plug_buffer(struct rtnl_qdisc *qdisc)
Insert a plug into the qdisc and buffer any incoming network traffic.
int rtnl_qdisc_plug_set_limit(struct rtnl_qdisc *qdisc, int limit)
Set limit of PLUG qdisc.