#include "print_fields.h"
#include "netlink.h"
+#ifdef HAVE_STRUCT_GNET_STATS_BASIC
+# include <linux/gen_stats.h>
+#endif
+#include <linux/pkt_sched.h>
#include <linux/rtnetlink.h>
#include "xlat/rtnl_tc_attrs.h"
+#include "xlat/rtnl_tca_stab_attrs.h"
+#include "xlat/rtnl_tca_stats_attrs.h"
+
+static bool
+decode_tc_stats(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+ struct tc_stats st;
+ const unsigned int sizeof_tc_stats =
+ offsetofend(struct tc_stats, backlog);
+
+ if (len < sizeof_tc_stats)
+ return false;
+ else if (!umoven_or_printaddr(tcp, addr, sizeof_tc_stats, &st)) {
+ PRINT_FIELD_U("{", st, bytes);
+ PRINT_FIELD_U(", ", st, packets);
+ PRINT_FIELD_U(", ", st, drops);
+ PRINT_FIELD_U(", ", st, overlimits);
+ PRINT_FIELD_U(", ", st, bps);
+ PRINT_FIELD_U(", ", st, pps);
+ PRINT_FIELD_U(", ", st, qlen);
+ PRINT_FIELD_U(", ", st, backlog);
+ tprints("}");
+ }
+
+ return true;
+}
+
+static bool
+decode_tc_estimator(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+ struct tc_estimator est;
+
+ if (len < sizeof(est))
+ return false;
+ else if (!umove_or_printaddr(tcp, addr, &est)) {
+ PRINT_FIELD_D("{", est, interval);
+ PRINT_FIELD_U(", ", est, ewma_log);
+ tprints("}");
+ }
+
+ return true;
+}
+
+static bool
+decode_gnet_stats_basic(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+#ifdef HAVE_STRUCT_GNET_STATS_BASIC
+ struct gnet_stats_basic sb;
+ const unsigned int sizeof_st_basic =
+ offsetofend(struct gnet_stats_basic, packets);
+
+ if (len < sizeof_st_basic)
+ return false;
+ else if (!umoven_or_printaddr(tcp, addr, sizeof_st_basic, &sb)) {
+ PRINT_FIELD_U("{", sb, bytes);
+ PRINT_FIELD_U(", ", sb, packets);
+ tprints("}");
+ }
+
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool
+decode_gnet_stats_rate_est(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST
+ struct gnet_stats_rate_est est;
+
+ if (len < sizeof(est))
+ return false;
+ else if (!umove_or_printaddr(tcp, addr, &est)) {
+ PRINT_FIELD_U("{", est, bps);
+ PRINT_FIELD_U(", ", est, pps);
+ tprints("}");
+ }
+
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool
+decode_gnet_stats_queue(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+#ifdef HAVE_STRUCT_GNET_STATS_QUEUE
+ struct gnet_stats_queue qstats;
+
+ if (len < sizeof(qstats))
+ return false;
+ else if (!umove_or_printaddr(tcp, addr, &qstats)) {
+ PRINT_FIELD_U("{", qstats, qlen);
+ PRINT_FIELD_U(", ", qstats, backlog);
+ PRINT_FIELD_U(", ", qstats, drops);
+ PRINT_FIELD_U(", ", qstats, requeues);
+ PRINT_FIELD_U(", ", qstats, overlimits);
+ tprints("}");
+ }
+
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool
+decode_gnet_stats_rate_est64(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+#ifdef HAVE_STRUCT_GNET_STATS_RATE_EST64
+ struct gnet_stats_rate_est64 est;
+
+ if (len < sizeof(est))
+ return false;
+ else if (!umove_or_printaddr(tcp, addr, &est)) {
+ PRINT_FIELD_U("{", est, bps);
+ PRINT_FIELD_U(", ", est, pps);
+ tprints("}");
+ }
+
+ return true;
+#else
+ return false;
+#endif
+}
+
+static const nla_decoder_t tca_stats_nla_decoders[] = {
+ [TCA_STATS_BASIC] = decode_gnet_stats_basic,
+ [TCA_STATS_RATE_EST] = decode_gnet_stats_rate_est,
+ [TCA_STATS_QUEUE] = decode_gnet_stats_queue,
+ [TCA_STATS_APP] = NULL, /* unimplemented */
+ [TCA_STATS_RATE_EST64] = decode_gnet_stats_rate_est64,
+ [TCA_STATS_PAD] = NULL,
+};
+
+bool
+decode_nla_tc_stats(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+ decode_nlattr(tcp, addr, len, rtnl_tca_stats_attrs, "TCA_STATS_???",
+ tca_stats_nla_decoders,
+ ARRAY_SIZE(tca_stats_nla_decoders), opaque_data);
+
+ return true;
+}
+
+static bool
+decode_tc_sizespec(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+#ifdef HAVE_STRUCT_TC_SIZESPEC
+ struct tc_sizespec s;
+
+ if (len < sizeof(s))
+ return false;
+ else if (!umove_or_printaddr(tcp, addr, &s)) {
+ PRINT_FIELD_U("{", s, cell_log);
+ PRINT_FIELD_U(", ", s, size_log);
+ PRINT_FIELD_D(", ", s, cell_align);
+ PRINT_FIELD_D(", ", s, overhead);
+ PRINT_FIELD_U(", ", s, linklayer);
+ PRINT_FIELD_U(", ", s, mpu);
+ PRINT_FIELD_U(", ", s, mtu);
+ PRINT_FIELD_U(", ", s, tsize);
+ tprints("}");
+ }
+
+ return true;
+#else
+ return false;
+#endif
+}
+
+static bool
+print_stab_data(struct tcb *const tcp, void *const elem_buf,
+ const size_t elem_size, void *const opaque_data)
+{
+ tprintf("%" PRIu16, *(uint16_t *) elem_buf);
+
+ return true;
+}
+
+static bool
+decode_tca_stab_data(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+ uint16_t data;
+ const size_t nmemb = len / sizeof(data);
+
+ if (!nmemb)
+ return false;
+
+ print_array(tcp, addr, nmemb, &data, sizeof(data),
+ umoven_or_printaddr, print_stab_data, NULL);
+
+ return true;
+}
+
+static const nla_decoder_t tca_stab_nla_decoders[] = {
+ [TCA_STAB_BASE] = decode_tc_sizespec,
+ [TCA_STAB_DATA] = decode_tca_stab_data
+};
+
+static bool
+decode_tca_stab(struct tcb *const tcp,
+ const kernel_ulong_t addr,
+ const unsigned int len,
+ const void *const opaque_data)
+{
+ decode_nlattr(tcp, addr, len, rtnl_tca_stab_attrs, "TCA_STAB_???",
+ tca_stab_nla_decoders,
+ ARRAY_SIZE(tca_stab_nla_decoders), opaque_data);
+
+ return true;
+}
+
+static const nla_decoder_t tcmsg_nla_decoders[] = {
+ [TCA_KIND] = decode_nla_str,
+ [TCA_OPTIONS] = NULL, /* unimplemented */
+ [TCA_STATS] = decode_tc_stats,
+ [TCA_XSTATS] = NULL, /* unimplemented */
+ [TCA_RATE] = decode_tc_estimator,
+ [TCA_FCNT] = decode_nla_u32,
+ [TCA_STATS2] = decode_nla_tc_stats,
+ [TCA_STAB] = decode_tca_stab,
+ [TCA_PAD] = NULL,
+ [TCA_DUMP_INVISIBLE] = NULL,
+ [TCA_CHAIN] = decode_nla_u32
+};
DECL_NETLINK_ROUTE_DECODER(decode_tcmsg)
{
if (decode_nla && len > offset) {
tprints(", ");
decode_nlattr(tcp, addr + offset, len - offset,
- rtnl_tc_attrs, "TCA_???", NULL, 0, NULL);
+ rtnl_tc_attrs, "TCA_???", tcmsg_nla_decoders,
+ ARRAY_SIZE(tcmsg_nla_decoders), NULL);
}
}
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