static int usage(void)
{
- fprintf(stderr, "Usage: tc qdisc [ add | del | replace | change | show ] dev STRING\n");
- fprintf(stderr, " [ handle QHANDLE ] [ root | ingress | clsact | parent CLASSID ]\n");
- fprintf(stderr, " [ estimator INTERVAL TIME_CONSTANT ]\n");
- fprintf(stderr, " [ stab [ help | STAB_OPTIONS] ]\n");
- fprintf(stderr, " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n");
- fprintf(stderr, "\n");
- fprintf(stderr, " tc qdisc show [ dev STRING ] [ ingress | clsact ] [ invisible ]\n");
- fprintf(stderr, "Where:\n");
- fprintf(stderr, "QDISC_KIND := { [p|b]fifo | tbf | prio | cbq | red | etc. }\n");
- fprintf(stderr, "OPTIONS := ... try tc qdisc add <desired QDISC_KIND> help\n");
- fprintf(stderr, "STAB_OPTIONS := ... try tc qdisc add stab help\n");
+ fprintf(stderr,
+ "Usage: tc qdisc [ add | del | replace | change | show ] dev STRING\n"
+ " [ handle QHANDLE ] [ root | ingress | clsact | parent CLASSID ]\n"
+ " [ estimator INTERVAL TIME_CONSTANT ]\n"
+ " [ stab [ help | STAB_OPTIONS] ]\n"
+ " [ ingress_block BLOCK_INDEX ] [ egress_block BLOCK_INDEX ]\n"
+ " [ [ QDISC_KIND ] [ help | OPTIONS ] ]\n"
+ "\n"
+ " tc qdisc { show | list } [ dev STRING ] [ QDISC_ID ] [ invisible ]\n"
+ "Where:\n"
+ "QDISC_KIND := { [p|b]fifo | tbf | prio | cbq | red | etc. }\n"
+ "OPTIONS := ... try tc qdisc add <desired QDISC_KIND> help\n"
+ "STAB_OPTIONS := ... try tc qdisc add stab help\n"
+ "QDISC_ID := { root | ingress | handle QHANDLE | parent CLASSID }\n");
return -1;
}
struct tc_sizespec szopts;
__u16 *data;
} stab = {};
- char d[16] = {};
- char k[16] = {};
+ char d[IFNAMSIZ] = {};
+ char k[FILTER_NAMESZ] = {};
struct {
struct nlmsghdr n;
struct tcmsg t;
.n.nlmsg_type = cmd,
.t.tcm_family = AF_UNSPEC,
};
+ __u32 ingress_block = 0;
+ __u32 egress_block = 0;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
if (parse_size_table(&argc, &argv, &stab.szopts) < 0)
return -1;
continue;
+ } else if (matches(*argv, "ingress_block") == 0) {
+ NEXT_ARG();
+ if (get_u32(&ingress_block, *argv, 0) || !ingress_block)
+ invarg("invalid ingress block index value", *argv);
+ } else if (matches(*argv, "egress_block") == 0) {
+ NEXT_ARG();
+ if (get_u32(&egress_block, *argv, 0) || !egress_block)
+ invarg("invalid egress block index value", *argv);
} else if (matches(*argv, "help") == 0) {
usage();
} else {
if (est.ewma_log)
addattr_l(&req.n, sizeof(req), TCA_RATE, &est, sizeof(est));
+ if (ingress_block)
+ addattr32(&req.n, sizeof(req),
+ TCA_INGRESS_BLOCK, ingress_block);
+ if (egress_block)
+ addattr32(&req.n, sizeof(req),
+ TCA_EGRESS_BLOCK, egress_block);
+
if (q) {
if (q->parse_qopt) {
- if (q->parse_qopt(q, argc, argv, &req.n))
+ if (q->parse_qopt(q, argc, argv, &req.n, d))
return 1;
} else if (argc) {
fprintf(stderr, "qdisc '%s' does not support option parsing\n", k);
return -1;
}
- tail = NLMSG_TAIL(&req.n);
- addattr_l(&req.n, sizeof(req), TCA_STAB, NULL, 0);
+ tail = addattr_nest(&req.n, sizeof(req), TCA_STAB);
addattr_l(&req.n, sizeof(req), TCA_STAB_BASE, &stab.szopts,
sizeof(stab.szopts));
if (stab.data)
addattr_l(&req.n, sizeof(req), TCA_STAB_DATA, stab.data,
stab.szopts.tsize * sizeof(__u16));
- tail->rta_len = (void *)NLMSG_TAIL(&req.n) - (void *)tail;
+ addattr_nest_end(&req.n, tail);
if (stab.data)
free(stab.data);
}
ll_init_map(&rth);
idx = ll_name_to_index(d);
- if (idx == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return 1;
- }
+ if (!idx)
+ return -nodev(d);
req.t.tcm_ifindex = idx;
}
}
static int filter_ifindex;
+static __u32 filter_parent;
+static __u32 filter_handle;
-int print_qdisc(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg)
+int print_qdisc(struct nlmsghdr *n, void *arg)
{
FILE *fp = (FILE *)arg;
struct tcmsg *t = NLMSG_DATA(n);
if (filter_ifindex && filter_ifindex != t->tcm_ifindex)
return 0;
- parse_rtattr(tb, TCA_MAX, TCA_RTA(t), len);
+ if (filter_handle && filter_handle != t->tcm_handle)
+ return 0;
+
+ if (filter_parent && filter_parent != t->tcm_parent)
+ return 0;
+
+ parse_rtattr_flags(tb, TCA_MAX, TCA_RTA(t), len, NLA_F_NESTED);
if (tb[TCA_KIND] == NULL) {
fprintf(stderr, "print_qdisc: NULL kind\n");
return -1;
}
+ open_json_object(NULL);
+
if (n->nlmsg_type == RTM_DELQDISC)
- fprintf(fp, "deleted ");
+ print_bool(PRINT_ANY, "deleted", "deleted ", true);
if (n->nlmsg_type == RTM_NEWQDISC &&
(n->nlmsg_flags & NLM_F_CREATE) &&
(n->nlmsg_flags & NLM_F_REPLACE))
- fprintf(fp, "replaced ");
+ print_bool(PRINT_ANY, "replaced", "replaced ", true);
if (n->nlmsg_type == RTM_NEWQDISC &&
(n->nlmsg_flags & NLM_F_CREATE) &&
(n->nlmsg_flags & NLM_F_EXCL))
- fprintf(fp, "added ");
-
- if (show_raw)
- fprintf(fp, "qdisc %s %x:[%08x] ",
- rta_getattr_str(tb[TCA_KIND]),
- t->tcm_handle >> 16, t->tcm_handle);
- else
- fprintf(fp, "qdisc %s %x: ", rta_getattr_str(tb[TCA_KIND]),
- t->tcm_handle >> 16);
+ print_bool(PRINT_ANY, "added", "added ", true);
+
+ print_string(PRINT_ANY, "kind", "qdisc %s",
+ rta_getattr_str(tb[TCA_KIND]));
+ sprintf(abuf, "%x:", t->tcm_handle >> 16);
+ print_string(PRINT_ANY, "handle", " %s", abuf);
+ if (show_raw) {
+ sprintf(abuf, "[%08x]", t->tcm_handle);
+ print_string(PRINT_FP, NULL, "%s", abuf);
+ }
+ print_string(PRINT_FP, NULL, " ", NULL);
if (filter_ifindex == 0)
- fprintf(fp, "dev %s ", ll_index_to_name(t->tcm_ifindex));
+ print_devname(PRINT_ANY, t->tcm_ifindex);
if (t->tcm_parent == TC_H_ROOT)
- fprintf(fp, "root ");
+ print_bool(PRINT_ANY, "root", "root ", true);
else if (t->tcm_parent) {
print_tc_classid(abuf, sizeof(abuf), t->tcm_parent);
- fprintf(fp, "parent %s ", abuf);
+ print_string(PRINT_ANY, "parent", "parent %s ", abuf);
}
if (t->tcm_info != 1)
- fprintf(fp, "refcnt %d ", t->tcm_info);
+ print_uint(PRINT_ANY, "refcnt", "refcnt %u ", t->tcm_info);
+
+ if (tb[TCA_HW_OFFLOAD] &&
+ (rta_getattr_u8(tb[TCA_HW_OFFLOAD])))
+ print_bool(PRINT_ANY, "offloaded", "offloaded ", true);
+
+ if (tb[TCA_INGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_INGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_INGRESS_BLOCK]);
+
+ if (block)
+ print_uint(PRINT_ANY, "ingress_block",
+ "ingress_block %u ", block);
+ }
+
+ if (tb[TCA_EGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_EGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_EGRESS_BLOCK]);
+
+ if (block)
+ print_uint(PRINT_ANY, "egress_block",
+ "egress_block %u ", block);
+ }
/* pfifo_fast is generic enough to warrant the hardcoding --JHS */
if (strcmp("pfifo_fast", RTA_DATA(tb[TCA_KIND])) == 0)
else
q = get_qdisc_kind(RTA_DATA(tb[TCA_KIND]));
+ open_json_object("options");
if (tb[TCA_OPTIONS]) {
if (q)
q->print_qopt(q, fp, tb[TCA_OPTIONS]);
else
- fprintf(fp, "[cannot parse qdisc parameters]");
+ fprintf(stderr, "Cannot parse qdisc parameters\n");
}
- fprintf(fp, "\n");
+ close_json_object();
+
+ print_nl();
if (show_details && tb[TCA_STAB]) {
print_size_table(fp, " ", tb[TCA_STAB]);
- fprintf(fp, "\n");
+ print_nl();
}
if (show_stats) {
if (tb[TCA_STATS] || tb[TCA_STATS2] || tb[TCA_XSTATS]) {
print_tcstats_attr(fp, tb, " ", &xstats);
- fprintf(fp, "\n");
+ print_nl();
}
if (q && xstats && q->print_xstats) {
q->print_xstats(q, fp, xstats);
- fprintf(fp, "\n");
+ print_nl();
}
}
+ close_json_object();
fflush(fp);
return 0;
}
static int tc_qdisc_list(int argc, char **argv)
{
- struct tcmsg t = { .tcm_family = AF_UNSPEC };
- char d[16] = {};
+ struct {
+ struct nlmsghdr n;
+ struct tcmsg t;
+ char buf[256];
+ } req = {
+ .n.nlmsg_type = RTM_GETQDISC,
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
+ .t.tcm_family = AF_UNSPEC,
+ };
+
+ char d[IFNAMSIZ] = {};
bool dump_invisible = false;
+ __u32 handle;
while (argc > 0) {
if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
strncpy(d, *argv, sizeof(d)-1);
+ } else if (strcmp(*argv, "root") == 0) {
+ if (filter_parent)
+ invarg("parent is already specified", *argv);
+ else if (filter_handle)
+ invarg("handle is already specified", *argv);
+ filter_parent = TC_H_ROOT;
} else if (strcmp(*argv, "ingress") == 0 ||
- strcmp(*argv, "clsact") == 0) {
- if (t.tcm_parent) {
- fprintf(stderr, "Duplicate parent ID\n");
- usage();
- }
- t.tcm_parent = TC_H_INGRESS;
+ strcmp(*argv, "clsact") == 0) {
+ if (filter_parent)
+ invarg("parent is already specified", *argv);
+ else if (filter_handle)
+ invarg("handle is already specified", *argv);
+ filter_parent = TC_H_INGRESS;
+ } else if (matches(*argv, "parent") == 0) {
+ if (filter_parent)
+ invarg("parent is already specified", *argv);
+ else if (filter_handle)
+ invarg("handle is already specified", *argv);
+ NEXT_ARG();
+ if (get_tc_classid(&handle, *argv))
+ invarg("invalid parent ID", *argv);
+ filter_parent = handle;
+ } else if (matches(*argv, "handle") == 0) {
+ if (filter_parent)
+ invarg("parent is already specified", *argv);
+ else if (filter_handle)
+ invarg("handle is already specified", *argv);
+ NEXT_ARG();
+ if (get_qdisc_handle(&handle, *argv))
+ invarg("invalid handle ID", *argv);
+ filter_handle = handle;
} else if (matches(*argv, "help") == 0) {
usage();
} else if (strcmp(*argv, "invisible") == 0) {
ll_init_map(&rth);
if (d[0]) {
- t.tcm_ifindex = ll_name_to_index(d);
- if (t.tcm_ifindex == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", d);
- return 1;
- }
- filter_ifindex = t.tcm_ifindex;
+ req.t.tcm_ifindex = ll_name_to_index(d);
+ if (!req.t.tcm_ifindex)
+ return -nodev(d);
+ filter_ifindex = req.t.tcm_ifindex;
}
if (dump_invisible) {
- struct {
- struct nlmsghdr n;
- struct tcmsg t;
- char buf[256];
- } req = {
- .n.nlmsg_type = RTM_GETQDISC,
- .n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg)),
- };
-
- req.t.tcm_family = AF_UNSPEC;
-
addattr(&req.n, 256, TCA_DUMP_INVISIBLE);
- if (rtnl_dump_request_n(&rth, &req.n) < 0) {
- perror("Cannot send dump request");
- return 1;
- }
+ }
- } else if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
- perror("Cannot send dump request");
+ if (rtnl_dump_request_n(&rth, &req.n) < 0) {
+ perror("Cannot send request");
return 1;
}
+ new_json_obj(json);
if (rtnl_dump_filter(&rth, print_qdisc, stdout) < 0) {
fprintf(stderr, "Dump terminated\n");
return 1;
}
+ delete_json_obj();
return 0;
}
return tc_qdisc_modify(RTM_NEWQDISC, NLM_F_REPLACE, argc-1, argv+1);
if (matches(*argv, "delete") == 0)
return tc_qdisc_modify(RTM_DELQDISC, 0, argc-1, argv+1);
-#if 0
- if (matches(*argv, "get") == 0)
- return tc_qdisc_get(RTM_GETQDISC, 0, argc-1, argv+1);
-#endif
if (matches(*argv, "list") == 0 || matches(*argv, "show") == 0
|| matches(*argv, "lst") == 0)
return tc_qdisc_list(argc-1, argv+1);
fprintf(stderr, "Command \"%s\" is unknown, try \"tc qdisc help\".\n", *argv);
return -1;
}
+
+struct tc_qdisc_block_exists_ctx {
+ __u32 block_index;
+ bool found;
+};
+
+static int tc_qdisc_block_exists_cb(struct nlmsghdr *n, void *arg)
+{
+ struct tc_qdisc_block_exists_ctx *ctx = arg;
+ struct tcmsg *t = NLMSG_DATA(n);
+ struct rtattr *tb[TCA_MAX+1];
+ int len = n->nlmsg_len;
+ struct qdisc_util *q;
+ const char *kind;
+ int err;
+
+ if (n->nlmsg_type != RTM_NEWQDISC)
+ return 0;
+
+ len -= NLMSG_LENGTH(sizeof(*t));
+ if (len < 0)
+ return -1;
+
+ parse_rtattr_flags(tb, TCA_MAX, TCA_RTA(t), len, NLA_F_NESTED);
+
+ if (tb[TCA_KIND] == NULL)
+ return -1;
+
+ if (tb[TCA_INGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_INGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_INGRESS_BLOCK]);
+
+ if (block == ctx->block_index)
+ ctx->found = true;
+ }
+
+ if (tb[TCA_EGRESS_BLOCK] &&
+ RTA_PAYLOAD(tb[TCA_EGRESS_BLOCK]) >= sizeof(__u32)) {
+ __u32 block = rta_getattr_u32(tb[TCA_EGRESS_BLOCK]);
+
+ if (block == ctx->block_index)
+ ctx->found = true;
+ }
+
+ kind = rta_getattr_str(tb[TCA_KIND]);
+ q = get_qdisc_kind(kind);
+ if (!q)
+ return -1;
+ if (q->has_block) {
+ bool found = false;
+
+ err = q->has_block(q, tb[TCA_OPTIONS], ctx->block_index, &found);
+ if (err)
+ return err;
+ if (found)
+ ctx->found = true;
+ }
+
+ return 0;
+}
+
+bool tc_qdisc_block_exists(__u32 block_index)
+{
+ struct tc_qdisc_block_exists_ctx ctx = { .block_index = block_index };
+ struct tcmsg t = { .tcm_family = AF_UNSPEC };
+
+ if (rtnl_dump_request(&rth, RTM_GETQDISC, &t, sizeof(t)) < 0) {
+ perror("Cannot send dump request");
+ return false;
+ }
+
+ if (rtnl_dump_filter(&rth, tc_qdisc_block_exists_cb, &ctx) < 0) {
+ perror("Dump terminated\n");
+ return false;
+ }
+
+ return ctx.found;
+}