summaryrefslogtreecommitdiffstats
path: root/tc/q_cake.c
diff options
context:
space:
mode:
Diffstat (limited to 'tc/q_cake.c')
-rw-r--r--tc/q_cake.c829
1 files changed, 829 insertions, 0 deletions
diff --git a/tc/q_cake.c b/tc/q_cake.c
new file mode 100644
index 0000000..c438b76
--- /dev/null
+++ b/tc/q_cake.c
@@ -0,0 +1,829 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * Common Applications Kept Enhanced -- CAKE
+ *
+ * Copyright (C) 2014-2018 Jonathan Morton <chromatix99@gmail.com>
+ * Copyright (C) 2017-2018 Toke Høiland-Jørgensen <toke@toke.dk>
+ */
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include "utils.h"
+#include "tc_util.h"
+
+struct cake_preset {
+ char *name;
+ unsigned int target;
+ unsigned int interval;
+};
+
+static struct cake_preset presets[] = {
+ {"datacentre", 5, 100},
+ {"lan", 50, 1000},
+ {"metro", 500, 10000},
+ {"regional", 1500, 30000},
+ {"internet", 5000, 100000},
+ {"oceanic", 15000, 300000},
+ {"satellite", 50000, 1000000},
+ {"interplanetary", 50000000, 1000000000},
+};
+
+static const char * diffserv_names[CAKE_DIFFSERV_MAX] = {
+ [CAKE_DIFFSERV_DIFFSERV3] = "diffserv3",
+ [CAKE_DIFFSERV_DIFFSERV4] = "diffserv4",
+ [CAKE_DIFFSERV_DIFFSERV8] = "diffserv8",
+ [CAKE_DIFFSERV_BESTEFFORT] = "besteffort",
+ [CAKE_DIFFSERV_PRECEDENCE] = "precedence",
+};
+
+static const char * flowmode_names[CAKE_FLOW_MAX] = {
+ [CAKE_FLOW_NONE] = "flowblind",
+ [CAKE_FLOW_SRC_IP] = "srchost",
+ [CAKE_FLOW_DST_IP] = "dsthost",
+ [CAKE_FLOW_HOSTS] = "hosts",
+ [CAKE_FLOW_FLOWS] = "flows",
+ [CAKE_FLOW_DUAL_SRC] = "dual-srchost",
+ [CAKE_FLOW_DUAL_DST] = "dual-dsthost",
+ [CAKE_FLOW_TRIPLE] = "triple-isolate",
+};
+
+static struct cake_preset *find_preset(char *argv)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(presets); i++)
+ if (!strcmp(argv, presets[i].name))
+ return &presets[i];
+ return NULL;
+}
+
+static void explain(void)
+{
+ fprintf(stderr,
+ "Usage: ... cake [ bandwidth RATE | unlimited* | autorate-ingress ]\n"
+ " [ rtt TIME | datacentre | lan | metro | regional |\n"
+ " internet* | oceanic | satellite | interplanetary ]\n"
+ " [ besteffort | diffserv8 | diffserv4 | diffserv3* ]\n"
+ " [ flowblind | srchost | dsthost | hosts | flows |\n"
+ " dual-srchost | dual-dsthost | triple-isolate* ]\n"
+ " [ nat | nonat* ]\n"
+ " [ wash | nowash* ]\n"
+ " [ split-gso* | no-split-gso ]\n"
+ " [ ack-filter | ack-filter-aggressive | no-ack-filter* ]\n"
+ " [ memlimit LIMIT ]\n"
+ " [ fwmark MASK ]\n"
+ " [ ptm | atm | noatm* ] [ overhead N | conservative | raw* ]\n"
+ " [ mpu N ] [ ingress | egress* ]\n"
+ " (* marks defaults)\n");
+}
+
+static int cake_parse_opt(struct qdisc_util *qu, int argc, char **argv,
+ struct nlmsghdr *n, const char *dev)
+{
+ struct cake_preset *preset, *preset_set = NULL;
+ bool overhead_override = false;
+ bool overhead_set = false;
+ unsigned int interval = 0;
+ int diffserv = -1;
+ unsigned int memlimit = 0;
+ unsigned int fwmark = 0;
+ unsigned int target = 0;
+ __u64 bandwidth = 0;
+ int ack_filter = -1;
+ struct rtattr *tail;
+ int split_gso = -1;
+ int unlimited = 0;
+ int flowmode = -1;
+ int autorate = -1;
+ int ingress = -1;
+ int overhead = 0;
+ int wash = -1;
+ int nat = -1;
+ int atm = -1;
+ int mpu = 0;
+
+ while (argc > 0) {
+ if (strcmp(*argv, "bandwidth") == 0) {
+ NEXT_ARG();
+ if (get_rate64(&bandwidth, *argv)) {
+ fprintf(stderr, "Illegal \"bandwidth\"\n");
+ return -1;
+ }
+ unlimited = 0;
+ autorate = 0;
+ } else if (strcmp(*argv, "unlimited") == 0) {
+ bandwidth = 0;
+ unlimited = 1;
+ autorate = 0;
+ } else if (strcmp(*argv, "autorate-ingress") == 0) {
+ autorate = 1;
+ } else if (strcmp(*argv, "rtt") == 0) {
+ NEXT_ARG();
+ if (get_time(&interval, *argv)) {
+ fprintf(stderr, "Illegal \"rtt\"\n");
+ return -1;
+ }
+ target = interval / 20;
+ if (!target)
+ target = 1;
+ } else if ((preset = find_preset(*argv))) {
+ if (preset_set)
+ duparg(*argv, preset_set->name);
+ preset_set = preset;
+ target = preset->target;
+ interval = preset->interval;
+ } else if (strcmp(*argv, "besteffort") == 0) {
+ diffserv = CAKE_DIFFSERV_BESTEFFORT;
+ } else if (strcmp(*argv, "precedence") == 0) {
+ diffserv = CAKE_DIFFSERV_PRECEDENCE;
+ } else if (strcmp(*argv, "diffserv8") == 0) {
+ diffserv = CAKE_DIFFSERV_DIFFSERV8;
+ } else if (strcmp(*argv, "diffserv4") == 0) {
+ diffserv = CAKE_DIFFSERV_DIFFSERV4;
+ } else if (strcmp(*argv, "diffserv") == 0) {
+ diffserv = CAKE_DIFFSERV_DIFFSERV4;
+ } else if (strcmp(*argv, "diffserv3") == 0) {
+ diffserv = CAKE_DIFFSERV_DIFFSERV3;
+ } else if (strcmp(*argv, "nowash") == 0) {
+ wash = 0;
+ } else if (strcmp(*argv, "wash") == 0) {
+ wash = 1;
+ } else if (strcmp(*argv, "split-gso") == 0) {
+ split_gso = 1;
+ } else if (strcmp(*argv, "no-split-gso") == 0) {
+ split_gso = 0;
+ } else if (strcmp(*argv, "flowblind") == 0) {
+ flowmode = CAKE_FLOW_NONE;
+ } else if (strcmp(*argv, "srchost") == 0) {
+ flowmode = CAKE_FLOW_SRC_IP;
+ } else if (strcmp(*argv, "dsthost") == 0) {
+ flowmode = CAKE_FLOW_DST_IP;
+ } else if (strcmp(*argv, "hosts") == 0) {
+ flowmode = CAKE_FLOW_HOSTS;
+ } else if (strcmp(*argv, "flows") == 0) {
+ flowmode = CAKE_FLOW_FLOWS;
+ } else if (strcmp(*argv, "dual-srchost") == 0) {
+ flowmode = CAKE_FLOW_DUAL_SRC;
+ } else if (strcmp(*argv, "dual-dsthost") == 0) {
+ flowmode = CAKE_FLOW_DUAL_DST;
+ } else if (strcmp(*argv, "triple-isolate") == 0) {
+ flowmode = CAKE_FLOW_TRIPLE;
+ } else if (strcmp(*argv, "nat") == 0) {
+ nat = 1;
+ } else if (strcmp(*argv, "nonat") == 0) {
+ nat = 0;
+ } else if (strcmp(*argv, "ptm") == 0) {
+ atm = CAKE_ATM_PTM;
+ } else if (strcmp(*argv, "atm") == 0) {
+ atm = CAKE_ATM_ATM;
+ } else if (strcmp(*argv, "noatm") == 0) {
+ atm = CAKE_ATM_NONE;
+ } else if (strcmp(*argv, "raw") == 0) {
+ atm = CAKE_ATM_NONE;
+ overhead = 0;
+ overhead_set = true;
+ overhead_override = true;
+ } else if (strcmp(*argv, "conservative") == 0) {
+ /*
+ * Deliberately over-estimate overhead:
+ * one whole ATM cell plus ATM framing.
+ * A safe choice if the actual overhead is unknown.
+ */
+ atm = CAKE_ATM_ATM;
+ overhead = 48;
+ overhead_set = true;
+
+ /* Various ADSL framing schemes, all over ATM cells */
+ } else if (strcmp(*argv, "ipoa-vcmux") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 8;
+ overhead_set = true;
+ } else if (strcmp(*argv, "ipoa-llcsnap") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 16;
+ overhead_set = true;
+ } else if (strcmp(*argv, "bridged-vcmux") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 24;
+ overhead_set = true;
+ } else if (strcmp(*argv, "bridged-llcsnap") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 32;
+ overhead_set = true;
+ } else if (strcmp(*argv, "pppoa-vcmux") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 10;
+ overhead_set = true;
+ } else if (strcmp(*argv, "pppoa-llc") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 14;
+ overhead_set = true;
+ } else if (strcmp(*argv, "pppoe-vcmux") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 32;
+ overhead_set = true;
+ } else if (strcmp(*argv, "pppoe-llcsnap") == 0) {
+ atm = CAKE_ATM_ATM;
+ overhead += 40;
+ overhead_set = true;
+
+ /* Typical VDSL2 framing schemes, both over PTM */
+ /* PTM has 64b/65b coding which absorbs some bandwidth */
+ } else if (strcmp(*argv, "pppoe-ptm") == 0) {
+ /* 2B PPP + 6B PPPoE + 6B dest MAC + 6B src MAC
+ * + 2B ethertype + 4B Frame Check Sequence
+ * + 1B Start of Frame (S) + 1B End of Frame (Ck)
+ * + 2B TC-CRC (PTM-FCS) = 30B
+ */
+ atm = CAKE_ATM_PTM;
+ overhead += 30;
+ overhead_set = true;
+ } else if (strcmp(*argv, "bridged-ptm") == 0) {
+ /* 6B dest MAC + 6B src MAC + 2B ethertype
+ * + 4B Frame Check Sequence
+ * + 1B Start of Frame (S) + 1B End of Frame (Ck)
+ * + 2B TC-CRC (PTM-FCS) = 22B
+ */
+ atm = CAKE_ATM_PTM;
+ overhead += 22;
+ overhead_set = true;
+ } else if (strcmp(*argv, "via-ethernet") == 0) {
+ /*
+ * We used to use this flag to manually compensate for
+ * Linux including the Ethernet header on Ethernet-type
+ * interfaces, but not on IP-type interfaces.
+ *
+ * It is no longer needed, because Cake now adjusts for
+ * that automatically, and is thus ignored.
+ *
+ * It would be deleted entirely, but it appears in the
+ * stats output when the automatic compensation is
+ * active.
+ */
+ } else if (strcmp(*argv, "ethernet") == 0) {
+ /* ethernet pre-amble & interframe gap & FCS
+ * you may need to add vlan tag
+ */
+ overhead += 38;
+ overhead_set = true;
+ mpu = 84;
+
+ /* Additional Ethernet-related overhead used by some ISPs */
+ } else if (strcmp(*argv, "ether-vlan") == 0) {
+ /* 802.1q VLAN tag - may be repeated */
+ overhead += 4;
+ overhead_set = true;
+
+ /*
+ * DOCSIS cable shapers account for Ethernet frame with FCS,
+ * but not interframe gap or preamble.
+ */
+ } else if (strcmp(*argv, "docsis") == 0) {
+ atm = CAKE_ATM_NONE;
+ overhead += 18;
+ overhead_set = true;
+ mpu = 64;
+ } else if (strcmp(*argv, "overhead") == 0) {
+ char *p = NULL;
+
+ NEXT_ARG();
+ overhead = strtol(*argv, &p, 10);
+ if (!p || *p || overhead < -64 || overhead > 256) {
+ fprintf(stderr,
+ "Illegal \"overhead\", valid range is -64 to 256\\n");
+ return -1;
+ }
+ overhead_set = true;
+
+ } else if (strcmp(*argv, "mpu") == 0) {
+ char *p = NULL;
+
+ NEXT_ARG();
+ mpu = strtol(*argv, &p, 10);
+ if (!p || *p || mpu < 0 || mpu > 256) {
+ fprintf(stderr,
+ "Illegal \"mpu\", valid range is 0 to 256\\n");
+ return -1;
+ }
+ } else if (strcmp(*argv, "ingress") == 0) {
+ ingress = 1;
+ } else if (strcmp(*argv, "egress") == 0) {
+ ingress = 0;
+ } else if (strcmp(*argv, "no-ack-filter") == 0) {
+ ack_filter = CAKE_ACK_NONE;
+ } else if (strcmp(*argv, "ack-filter") == 0) {
+ ack_filter = CAKE_ACK_FILTER;
+ } else if (strcmp(*argv, "ack-filter-aggressive") == 0) {
+ ack_filter = CAKE_ACK_AGGRESSIVE;
+ } else if (strcmp(*argv, "memlimit") == 0) {
+ NEXT_ARG();
+ if (get_size(&memlimit, *argv)) {
+ fprintf(stderr,
+ "Illegal value for \"memlimit\": \"%s\"\n", *argv);
+ return -1;
+ }
+ } else if (strcmp(*argv, "fwmark") == 0) {
+ NEXT_ARG();
+ if (get_u32(&fwmark, *argv, 0)) {
+ fprintf(stderr,
+ "Illegal value for \"fwmark\": \"%s\"\n", *argv);
+ return -1;
+ }
+ } else if (strcmp(*argv, "help") == 0) {
+ explain();
+ return -1;
+ } else {
+ fprintf(stderr, "What is \"%s\"?\n", *argv);
+ explain();
+ return -1;
+ }
+ argc--; argv++;
+ }
+
+ tail = NLMSG_TAIL(n);
+ addattr_l(n, 1024, TCA_OPTIONS, NULL, 0);
+ if (bandwidth || unlimited)
+ addattr_l(n, 1024, TCA_CAKE_BASE_RATE64, &bandwidth,
+ sizeof(bandwidth));
+ if (diffserv != -1)
+ addattr_l(n, 1024, TCA_CAKE_DIFFSERV_MODE, &diffserv,
+ sizeof(diffserv));
+ if (atm != -1)
+ addattr_l(n, 1024, TCA_CAKE_ATM, &atm, sizeof(atm));
+ if (flowmode != -1)
+ addattr_l(n, 1024, TCA_CAKE_FLOW_MODE, &flowmode,
+ sizeof(flowmode));
+ if (overhead_set)
+ addattr_l(n, 1024, TCA_CAKE_OVERHEAD, &overhead,
+ sizeof(overhead));
+ if (overhead_override) {
+ unsigned int zero = 0;
+
+ addattr_l(n, 1024, TCA_CAKE_RAW, &zero, sizeof(zero));
+ }
+ if (mpu > 0)
+ addattr_l(n, 1024, TCA_CAKE_MPU, &mpu, sizeof(mpu));
+ if (interval)
+ addattr_l(n, 1024, TCA_CAKE_RTT, &interval, sizeof(interval));
+ if (target)
+ addattr_l(n, 1024, TCA_CAKE_TARGET, &target, sizeof(target));
+ if (autorate != -1)
+ addattr_l(n, 1024, TCA_CAKE_AUTORATE, &autorate,
+ sizeof(autorate));
+ if (memlimit)
+ addattr_l(n, 1024, TCA_CAKE_MEMORY, &memlimit,
+ sizeof(memlimit));
+ if (fwmark)
+ addattr_l(n, 1024, TCA_CAKE_FWMARK, &fwmark,
+ sizeof(fwmark));
+ if (nat != -1)
+ addattr_l(n, 1024, TCA_CAKE_NAT, &nat, sizeof(nat));
+ if (wash != -1)
+ addattr_l(n, 1024, TCA_CAKE_WASH, &wash, sizeof(wash));
+ if (split_gso != -1)
+ addattr_l(n, 1024, TCA_CAKE_SPLIT_GSO, &split_gso,
+ sizeof(split_gso));
+ if (ingress != -1)
+ addattr_l(n, 1024, TCA_CAKE_INGRESS, &ingress, sizeof(ingress));
+ if (ack_filter != -1)
+ addattr_l(n, 1024, TCA_CAKE_ACK_FILTER, &ack_filter,
+ sizeof(ack_filter));
+
+ tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail;
+ return 0;
+}
+
+static void cake_print_mode(unsigned int value, unsigned int max,
+ const char *key, const char **table)
+{
+ if (value < max && table[value]) {
+ print_string(PRINT_ANY, key, "%s ", table[value]);
+ } else {
+ print_string(PRINT_JSON, key, NULL, "unknown");
+ print_string(PRINT_FP, NULL, "(?%s?)", key);
+ }
+}
+
+static int cake_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
+{
+ struct rtattr *tb[TCA_CAKE_MAX + 1];
+ unsigned int interval = 0;
+ unsigned int memlimit = 0;
+ unsigned int fwmark = 0;
+ __u64 bandwidth = 0;
+ int ack_filter = 0;
+ int split_gso = 0;
+ int overhead = 0;
+ int autorate = 0;
+ int ingress = 0;
+ int wash = 0;
+ int raw = 0;
+ int mpu = 0;
+ int atm = 0;
+ int nat = 0;
+
+ SPRINT_BUF(b2);
+
+ if (opt == NULL)
+ return 0;
+
+ parse_rtattr_nested(tb, TCA_CAKE_MAX, opt);
+
+ if (tb[TCA_CAKE_BASE_RATE64] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_BASE_RATE64]) >= sizeof(bandwidth)) {
+ bandwidth = rta_getattr_u64(tb[TCA_CAKE_BASE_RATE64]);
+ if (bandwidth)
+ tc_print_rate(PRINT_ANY, "bandwidth", "bandwidth %s ",
+ bandwidth);
+ else
+ print_string(PRINT_ANY, "bandwidth", "bandwidth %s ",
+ "unlimited");
+ }
+ if (tb[TCA_CAKE_AUTORATE] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_AUTORATE]) >= sizeof(__u32)) {
+ autorate = rta_getattr_u32(tb[TCA_CAKE_AUTORATE]);
+ if (autorate == 1)
+ print_string(PRINT_ANY, "autorate", "%s ",
+ "autorate-ingress");
+ else if (autorate)
+ print_string(PRINT_ANY, "autorate", "(?autorate?) ",
+ "unknown");
+ }
+ if (tb[TCA_CAKE_DIFFSERV_MODE] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_DIFFSERV_MODE]) >= sizeof(__u32)) {
+ cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_DIFFSERV_MODE]),
+ CAKE_DIFFSERV_MAX, "diffserv", diffserv_names);
+ }
+ if (tb[TCA_CAKE_FLOW_MODE] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_FLOW_MODE]) >= sizeof(__u32)) {
+ cake_print_mode(rta_getattr_u32(tb[TCA_CAKE_FLOW_MODE]),
+ CAKE_FLOW_MAX, "flowmode", flowmode_names);
+ }
+
+ if (tb[TCA_CAKE_NAT] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_NAT]) >= sizeof(__u32)) {
+ nat = rta_getattr_u32(tb[TCA_CAKE_NAT]);
+ }
+
+ if (nat)
+ print_string(PRINT_FP, NULL, "nat ", NULL);
+ else
+ print_string(PRINT_FP, NULL, "nonat ", NULL);
+ print_bool(PRINT_JSON, "nat", NULL, nat);
+
+ if (tb[TCA_CAKE_WASH] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_WASH]) >= sizeof(__u32)) {
+ wash = rta_getattr_u32(tb[TCA_CAKE_WASH]);
+ }
+ if (tb[TCA_CAKE_ATM] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_ATM]) >= sizeof(__u32)) {
+ atm = rta_getattr_u32(tb[TCA_CAKE_ATM]);
+ }
+ if (tb[TCA_CAKE_OVERHEAD] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_OVERHEAD]) >= sizeof(__s32)) {
+ overhead = *(__s32 *) RTA_DATA(tb[TCA_CAKE_OVERHEAD]);
+ }
+ if (tb[TCA_CAKE_MPU] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_MPU]) >= sizeof(__u32)) {
+ mpu = rta_getattr_u32(tb[TCA_CAKE_MPU]);
+ }
+ if (tb[TCA_CAKE_INGRESS] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_INGRESS]) >= sizeof(__u32)) {
+ ingress = rta_getattr_u32(tb[TCA_CAKE_INGRESS]);
+ }
+ if (tb[TCA_CAKE_ACK_FILTER] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_ACK_FILTER]) >= sizeof(__u32)) {
+ ack_filter = rta_getattr_u32(tb[TCA_CAKE_ACK_FILTER]);
+ }
+ if (tb[TCA_CAKE_SPLIT_GSO] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_SPLIT_GSO]) >= sizeof(__u32)) {
+ split_gso = rta_getattr_u32(tb[TCA_CAKE_SPLIT_GSO]);
+ }
+ if (tb[TCA_CAKE_RAW]) {
+ raw = 1;
+ }
+ if (tb[TCA_CAKE_RTT] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_RTT]) >= sizeof(__u32)) {
+ interval = rta_getattr_u32(tb[TCA_CAKE_RTT]);
+ }
+ if (tb[TCA_CAKE_MEMORY] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_MEMORY]) >= sizeof(__u32)) {
+ memlimit = rta_getattr_u32(tb[TCA_CAKE_MEMORY]);
+ }
+ if (tb[TCA_CAKE_FWMARK] &&
+ RTA_PAYLOAD(tb[TCA_CAKE_FWMARK]) >= sizeof(__u32)) {
+ fwmark = rta_getattr_u32(tb[TCA_CAKE_FWMARK]);
+ }
+
+ if (wash)
+ print_string(PRINT_FP, NULL, "wash ", NULL);
+ else
+ print_string(PRINT_FP, NULL, "nowash ", NULL);
+ print_bool(PRINT_JSON, "wash", NULL, wash);
+
+ if (ingress)
+ print_string(PRINT_FP, NULL, "ingress ", NULL);
+ print_bool(PRINT_JSON, "ingress", NULL, ingress);
+
+ if (ack_filter == CAKE_ACK_AGGRESSIVE)
+ print_string(PRINT_ANY, "ack-filter", "ack-filter-%s ",
+ "aggressive");
+ else if (ack_filter == CAKE_ACK_FILTER)
+ print_string(PRINT_ANY, "ack-filter", "ack-filter ", "enabled");
+ else
+ print_string(PRINT_ANY, "ack-filter", "no-ack-filter ", "disabled");
+
+ if (split_gso)
+ print_string(PRINT_FP, NULL, "split-gso ", NULL);
+ else
+ print_string(PRINT_FP, NULL, "no-split-gso ", NULL);
+ print_bool(PRINT_JSON, "split_gso", NULL, split_gso);
+
+ if (interval)
+ print_string(PRINT_FP, NULL, "rtt %s ",
+ sprint_time(interval, b2));
+ print_uint(PRINT_JSON, "rtt", NULL, interval);
+
+ if (raw)
+ print_string(PRINT_FP, NULL, "raw ", NULL);
+ print_bool(PRINT_JSON, "raw", NULL, raw);
+
+ if (atm == CAKE_ATM_ATM)
+ print_string(PRINT_ANY, "atm", "%s ", "atm");
+ else if (atm == CAKE_ATM_PTM)
+ print_string(PRINT_ANY, "atm", "%s ", "ptm");
+ else if (!raw)
+ print_string(PRINT_ANY, "atm", "%s ", "noatm");
+
+ print_int(PRINT_ANY, "overhead", "overhead %d ", overhead);
+
+ if (mpu)
+ print_uint(PRINT_ANY, "mpu", "mpu %u ", mpu);
+
+ if (memlimit)
+ print_size(PRINT_ANY, "memlimit", "memlimit %s ", memlimit);
+
+ if (fwmark)
+ print_uint(PRINT_FP, NULL, "fwmark 0x%x ", fwmark);
+ print_0xhex(PRINT_JSON, "fwmark", NULL, fwmark);
+
+ return 0;
+}
+
+static void cake_print_json_tin(struct rtattr **tstat)
+{
+#define PRINT_TSTAT_JSON(type, name, attr) if (tstat[TCA_CAKE_TIN_STATS_ ## attr]) \
+ print_u64(PRINT_JSON, name, NULL, \
+ rta_getattr_ ## type((struct rtattr *) \
+ tstat[TCA_CAKE_TIN_STATS_ ## attr]))
+
+ open_json_object(NULL);
+ PRINT_TSTAT_JSON(u64, "threshold_rate", THRESHOLD_RATE64);
+ PRINT_TSTAT_JSON(u64, "sent_bytes", SENT_BYTES64);
+ PRINT_TSTAT_JSON(u32, "backlog_bytes", BACKLOG_BYTES);
+ PRINT_TSTAT_JSON(u32, "target_us", TARGET_US);
+ PRINT_TSTAT_JSON(u32, "interval_us", INTERVAL_US);
+ PRINT_TSTAT_JSON(u32, "peak_delay_us", PEAK_DELAY_US);
+ PRINT_TSTAT_JSON(u32, "avg_delay_us", AVG_DELAY_US);
+ PRINT_TSTAT_JSON(u32, "base_delay_us", BASE_DELAY_US);
+ PRINT_TSTAT_JSON(u32, "sent_packets", SENT_PACKETS);
+ PRINT_TSTAT_JSON(u32, "way_indirect_hits", WAY_INDIRECT_HITS);
+ PRINT_TSTAT_JSON(u32, "way_misses", WAY_MISSES);
+ PRINT_TSTAT_JSON(u32, "way_collisions", WAY_COLLISIONS);
+ PRINT_TSTAT_JSON(u32, "drops", DROPPED_PACKETS);
+ PRINT_TSTAT_JSON(u32, "ecn_mark", ECN_MARKED_PACKETS);
+ PRINT_TSTAT_JSON(u32, "ack_drops", ACKS_DROPPED_PACKETS);
+ PRINT_TSTAT_JSON(u32, "sparse_flows", SPARSE_FLOWS);
+ PRINT_TSTAT_JSON(u32, "bulk_flows", BULK_FLOWS);
+ PRINT_TSTAT_JSON(u32, "unresponsive_flows", UNRESPONSIVE_FLOWS);
+ PRINT_TSTAT_JSON(u32, "max_pkt_len", MAX_SKBLEN);
+ PRINT_TSTAT_JSON(u32, "flow_quantum", FLOW_QUANTUM);
+ close_json_object();
+
+#undef PRINT_TSTAT_JSON
+}
+
+static int cake_print_xstats(struct qdisc_util *qu, FILE *f,
+ struct rtattr *xstats)
+{
+ struct rtattr *st[TCA_CAKE_STATS_MAX + 1];
+ SPRINT_BUF(b1);
+ int i;
+
+ if (xstats == NULL)
+ return 0;
+
+#define GET_STAT_U32(attr) rta_getattr_u32(st[TCA_CAKE_STATS_ ## attr])
+#define GET_STAT_S32(attr) (*(__s32 *)RTA_DATA(st[TCA_CAKE_STATS_ ## attr]))
+#define GET_STAT_U64(attr) rta_getattr_u64(st[TCA_CAKE_STATS_ ## attr])
+
+ parse_rtattr_nested(st, TCA_CAKE_STATS_MAX, xstats);
+
+ if (st[TCA_CAKE_STATS_MEMORY_USED] &&
+ st[TCA_CAKE_STATS_MEMORY_LIMIT]) {
+ print_size(PRINT_FP, NULL, " memory used: %s",
+ GET_STAT_U32(MEMORY_USED));
+
+ print_size(PRINT_FP, NULL, " of %s\n",
+ GET_STAT_U32(MEMORY_LIMIT));
+
+ print_uint(PRINT_JSON, "memory_used", NULL,
+ GET_STAT_U32(MEMORY_USED));
+ print_uint(PRINT_JSON, "memory_limit", NULL,
+ GET_STAT_U32(MEMORY_LIMIT));
+ }
+
+ if (st[TCA_CAKE_STATS_CAPACITY_ESTIMATE64])
+ tc_print_rate(PRINT_ANY, "capacity_estimate",
+ " capacity estimate: %s\n",
+ GET_STAT_U64(CAPACITY_ESTIMATE64));
+
+ if (st[TCA_CAKE_STATS_MIN_NETLEN] &&
+ st[TCA_CAKE_STATS_MAX_NETLEN]) {
+ print_uint(PRINT_ANY, "min_network_size",
+ " min/max network layer size: %12u",
+ GET_STAT_U32(MIN_NETLEN));
+ print_uint(PRINT_ANY, "max_network_size",
+ " /%8u\n", GET_STAT_U32(MAX_NETLEN));
+ }
+
+ if (st[TCA_CAKE_STATS_MIN_ADJLEN] &&
+ st[TCA_CAKE_STATS_MAX_ADJLEN]) {
+ print_uint(PRINT_ANY, "min_adj_size",
+ " min/max overhead-adjusted size: %8u",
+ GET_STAT_U32(MIN_ADJLEN));
+ print_uint(PRINT_ANY, "max_adj_size",
+ " /%8u\n", GET_STAT_U32(MAX_ADJLEN));
+ }
+
+ if (st[TCA_CAKE_STATS_AVG_NETOFF])
+ print_uint(PRINT_ANY, "avg_hdr_offset",
+ " average network hdr offset: %12u\n\n",
+ GET_STAT_U32(AVG_NETOFF));
+
+ /* class stats */
+ if (st[TCA_CAKE_STATS_DEFICIT])
+ print_int(PRINT_ANY, "deficit", " deficit %d",
+ GET_STAT_S32(DEFICIT));
+ if (st[TCA_CAKE_STATS_COBALT_COUNT])
+ print_uint(PRINT_ANY, "count", " count %u",
+ GET_STAT_U32(COBALT_COUNT));
+
+ if (st[TCA_CAKE_STATS_DROPPING] && GET_STAT_U32(DROPPING)) {
+ print_bool(PRINT_ANY, "dropping", " dropping", true);
+ if (st[TCA_CAKE_STATS_DROP_NEXT_US]) {
+ int drop_next = GET_STAT_S32(DROP_NEXT_US);
+
+ if (drop_next < 0) {
+ print_string(PRINT_FP, NULL, " drop_next -%s",
+ sprint_time(-drop_next, b1));
+ } else {
+ print_uint(PRINT_JSON, "drop_next", NULL,
+ drop_next);
+ print_string(PRINT_FP, NULL, " drop_next %s",
+ sprint_time(drop_next, b1));
+ }
+ }
+ }
+
+ if (st[TCA_CAKE_STATS_P_DROP]) {
+ print_uint(PRINT_ANY, "blue_prob", " blue_prob %u",
+ GET_STAT_U32(P_DROP));
+ if (st[TCA_CAKE_STATS_BLUE_TIMER_US]) {
+ int blue_timer = GET_STAT_S32(BLUE_TIMER_US);
+
+ if (blue_timer < 0) {
+ print_string(PRINT_FP, NULL, " blue_timer -%s",
+ sprint_time(blue_timer, b1));
+ } else {
+ print_uint(PRINT_JSON, "blue_timer", NULL,
+ blue_timer);
+ print_string(PRINT_FP, NULL, " blue_timer %s",
+ sprint_time(blue_timer, b1));
+ }
+ }
+ }
+
+#undef GET_STAT_U32
+#undef GET_STAT_S32
+#undef GET_STAT_U64
+
+ if (st[TCA_CAKE_STATS_TIN_STATS]) {
+ struct rtattr *tstat[TC_CAKE_MAX_TINS][TCA_CAKE_TIN_STATS_MAX + 1];
+ struct rtattr *tins[TC_CAKE_MAX_TINS + 1];
+ int num_tins = 0;
+
+ parse_rtattr_nested(tins, TC_CAKE_MAX_TINS,
+ st[TCA_CAKE_STATS_TIN_STATS]);
+
+ for (i = 1; i <= TC_CAKE_MAX_TINS && tins[i]; i++) {
+ parse_rtattr_nested(tstat[i-1], TCA_CAKE_TIN_STATS_MAX,
+ tins[i]);
+ num_tins++;
+ }
+
+ if (!num_tins)
+ return 0;
+
+ if (is_json_context()) {
+ open_json_array(PRINT_JSON, "tins");
+ for (i = 0; i < num_tins; i++)
+ cake_print_json_tin(tstat[i]);
+ close_json_array(PRINT_JSON, NULL);
+
+ return 0;
+ }
+
+
+ switch (num_tins) {
+ case 3:
+ fprintf(f, " Bulk Best Effort Voice\n");
+ break;
+
+ case 4:
+ fprintf(f, " Bulk Best Effort Video Voice\n");
+ break;
+
+ default:
+ fprintf(f, " ");
+ for (i = 0; i < num_tins; i++)
+ fprintf(f, " Tin %u", i);
+ fprintf(f, "%s", _SL_);
+ };
+
+#define GET_TSTAT(i, attr) (tstat[i][TCA_CAKE_TIN_STATS_ ## attr])
+#define PRINT_TSTAT(name, attr, fmts, val) do { \
+ if (GET_TSTAT(0, attr)) { \
+ fprintf(f, name); \
+ for (i = 0; i < num_tins; i++) \
+ fprintf(f, " %12" fmts, val); \
+ fprintf(f, "%s", _SL_); \
+ } \
+ } while (0)
+
+#define SPRINT_TSTAT(pfunc, type, name, attr) PRINT_TSTAT( \
+ name, attr, "s", sprint_ ## pfunc( \
+ rta_getattr_ ## type(GET_TSTAT(i, attr)), b1))
+
+#define PRINT_TSTAT_U32(name, attr) PRINT_TSTAT( \
+ name, attr, "u", rta_getattr_u32(GET_TSTAT(i, attr)))
+
+#define PRINT_TSTAT_U64(name, attr) PRINT_TSTAT( \
+ name, attr, "llu", rta_getattr_u64(GET_TSTAT(i, attr)))
+
+ if (GET_TSTAT(0, THRESHOLD_RATE64)) {
+ fprintf(f, " thresh ");
+ for (i = 0; i < num_tins; i++)
+ tc_print_rate(PRINT_FP, NULL, " %12s",
+ rta_getattr_u64(GET_TSTAT(i, THRESHOLD_RATE64)));
+ fprintf(f, "%s", _SL_);
+ }
+
+ SPRINT_TSTAT(time, u32, " target ", TARGET_US);
+ SPRINT_TSTAT(time, u32, " interval", INTERVAL_US);
+ SPRINT_TSTAT(time, u32, " pk_delay", PEAK_DELAY_US);
+ SPRINT_TSTAT(time, u32, " av_delay", AVG_DELAY_US);
+ SPRINT_TSTAT(time, u32, " sp_delay", BASE_DELAY_US);
+ SPRINT_TSTAT(size, u32, " backlog ", BACKLOG_BYTES);
+
+ PRINT_TSTAT_U32(" pkts ", SENT_PACKETS);
+ PRINT_TSTAT_U64(" bytes ", SENT_BYTES64);
+
+ PRINT_TSTAT_U32(" way_inds", WAY_INDIRECT_HITS);
+ PRINT_TSTAT_U32(" way_miss", WAY_MISSES);
+ PRINT_TSTAT_U32(" way_cols", WAY_COLLISIONS);
+ PRINT_TSTAT_U32(" drops ", DROPPED_PACKETS);
+ PRINT_TSTAT_U32(" marks ", ECN_MARKED_PACKETS);
+ PRINT_TSTAT_U32(" ack_drop", ACKS_DROPPED_PACKETS);
+ PRINT_TSTAT_U32(" sp_flows", SPARSE_FLOWS);
+ PRINT_TSTAT_U32(" bk_flows", BULK_FLOWS);
+ PRINT_TSTAT_U32(" un_flows", UNRESPONSIVE_FLOWS);
+ PRINT_TSTAT_U32(" max_len ", MAX_SKBLEN);
+ PRINT_TSTAT_U32(" quantum ", FLOW_QUANTUM);
+
+#undef GET_STAT
+#undef PRINT_TSTAT
+#undef SPRINT_TSTAT
+#undef PRINT_TSTAT_U32
+#undef PRINT_TSTAT_U64
+ }
+ return 0;
+}
+
+struct qdisc_util cake_qdisc_util = {
+ .id = "cake",
+ .parse_qopt = cake_parse_opt,
+ .print_qopt = cake_print_opt,
+ .print_xstats = cake_print_xstats,
+};