19 #include <netlink-local.h> 20 #include <netlink-tc.h> 21 #include <netlink/netlink.h> 22 #include <netlink/utils.h> 23 #include <netlink/route/qdisc.h> 24 #include <netlink/route/qdisc-modules.h> 25 #include <netlink/route/sch/red.h> 28 #define RED_ATTR_LIMIT 0x01 29 #define RED_ATTR_QTH_MIN 0x02 30 #define RED_ATTR_QTH_MAX 0x04 31 #define RED_ATTR_FLAGS 0x08 32 #define RED_ATTR_WLOG 0x10 33 #define RED_ATTR_PLOG 0x20 34 #define RED_ATTR_SCELL_LOG 0x40 37 static inline struct rtnl_red *red_qdisc(
struct rtnl_qdisc *qdisc)
39 return (
struct rtnl_red *) qdisc->q_subdata;
42 static inline struct rtnl_red *red_alloc(
struct rtnl_qdisc *qdisc)
44 if (!qdisc->q_subdata)
45 qdisc->q_subdata = calloc(1,
sizeof(
struct rtnl_red));
47 return red_qdisc(qdisc);
50 static struct nla_policy red_policy[TCA_RED_MAX+1] = {
51 [TCA_RED_PARMS] = { .
minlen =
sizeof(
struct tc_red_qopt) },
54 static int red_msg_parser(
struct rtnl_qdisc *qdisc)
56 struct nlattr *tb[TCA_RED_MAX+1];
58 struct tc_red_qopt *opts;
61 if (!(qdisc->ce_mask & TCA_ATTR_OPTS))
64 err = tca_parse(tb, TCA_RED_MAX, (
struct rtnl_tca *) qdisc, red_policy);
68 if (!tb[TCA_RED_PARMS])
69 return nl_error(EINVAL,
"Missing TCA_RED_PARMS");
71 red = red_alloc(qdisc);
73 return nl_errno(ENOMEM);
77 red->qr_limit = opts->limit;
78 red->qr_qth_min = opts->qth_min;
79 red->qr_qth_max = opts->qth_max;
80 red->qr_flags = opts->flags;
81 red->qr_wlog = opts->Wlog;
82 red->qr_plog = opts->Plog;
83 red->qr_scell_log = opts->Scell_log;
85 red->qr_mask = (RED_ATTR_LIMIT | RED_ATTR_QTH_MIN | RED_ATTR_QTH_MAX |
86 RED_ATTR_FLAGS | RED_ATTR_WLOG | RED_ATTR_PLOG |
92 static int red_dump_brief(
struct rtnl_qdisc *qdisc,
struct nl_dump_params *p,
95 struct rtnl_red *red = red_qdisc(qdisc);
104 static int red_dump_full(
struct rtnl_qdisc *qdisc,
struct nl_dump_params *p,
107 struct rtnl_red *red = red_qdisc(qdisc);
116 static int red_dump_stats(
struct rtnl_qdisc *qdisc,
struct nl_dump_params *p,
119 struct rtnl_red *red = red_qdisc(qdisc);
128 static struct nl_msg *red_get_opts(
struct rtnl_qdisc *qdisc)
130 struct rtnl_red *red;
133 red = red_qdisc(qdisc);
142 memset(&opts, 0,
sizeof(opts));
143 opts.quantum = sfq->qs_quantum;
144 opts.perturb_period = sfq->qs_perturb;
145 opts.limit = sfq->qs_limit;
147 if (
nlmsg_append(msg, &opts,
sizeof(opts), NL_DONTPAD) < 0)
170 struct rtnl_red *red;
172 red = red_alloc(qdisc);
174 return nl_errno(ENOMEM);
176 red->qr_limit = limit;
177 red->qr_mask |= RED_ATTR_LIMIT;
189 struct rtnl_red *red;
191 red = red_qdisc(qdisc);
192 if (red && (red->qr_mask & RED_ATTR_LIMIT))
193 return red->qr_limit;
195 return nl_errno(ENOENT);
202 .qo_msg_parser = red_msg_parser,
206 .qo_get_opts = red_get_opts,
209 static void __init red_init(
void)
214 static void __exit red_exit(
void)
Dump object in a brief one-liner.
char qo_kind[32]
Kind/Name of Qdisc.
attribute validation policy
int rtnl_qdisc_unregister(struct rtnl_qdisc_ops *qops)
Unregister a qdisc module.
struct nl_msg * nlmsg_alloc(void)
Allocate a new netlink message with the default maximum payload size.
void nlmsg_free(struct nl_msg *n)
Free a netlink message.
int rtnl_red_set_limit(struct rtnl_qdisc *qdisc, int limit)
Set limit of RED qdisc.
void * nla_data(const struct nlattr *nla)
head of payload
uint16_t minlen
Minimal length of payload required to be available.
int nlmsg_append(struct nl_msg *n, void *data, size_t len, int pad)
Append data to tail of a netlink message.
int rtnl_red_get_limit(struct rtnl_qdisc *qdisc)
Get limit of RED qdisc.
int rtnl_qdisc_register(struct rtnl_qdisc_ops *qops)
Register a qdisc module.
Dump all attributes but no statistics.
Dump all attributes including statistics.