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-rw-r--r--src/quic_cli.c413
1 files changed, 413 insertions, 0 deletions
diff --git a/src/quic_cli.c b/src/quic_cli.c
new file mode 100644
index 0000000..56301fa
--- /dev/null
+++ b/src/quic_cli.c
@@ -0,0 +1,413 @@
+#include <import/eb64tree.h>
+
+#include <haproxy/applet-t.h>
+#include <haproxy/cli.h>
+#include <haproxy/list.h>
+#include <haproxy/tools.h>
+#include <haproxy/quic_conn-t.h>
+#include <haproxy/quic_tp.h>
+
+/* incremented by each "show quic". */
+unsigned int qc_epoch = 0;
+
+enum quic_dump_format {
+ QUIC_DUMP_FMT_ONELINE,
+ QUIC_DUMP_FMT_FULL,
+};
+
+/* appctx context used by "show quic" command */
+struct show_quic_ctx {
+ unsigned int epoch;
+ struct bref bref; /* back-reference to the quic-conn being dumped */
+ unsigned int thr;
+ int flags;
+ enum quic_dump_format format;
+};
+
+#define QC_CLI_FL_SHOW_ALL 0x1 /* show closing/draining connections */
+
+static int cli_parse_show_quic(char **args, char *payload, struct appctx *appctx, void *private)
+{
+ struct show_quic_ctx *ctx = applet_reserve_svcctx(appctx, sizeof(*ctx));
+ int argc = 2;
+
+ if (!cli_has_level(appctx, ACCESS_LVL_OPER))
+ return 1;
+
+ ctx->epoch = _HA_ATOMIC_FETCH_ADD(&qc_epoch, 1);
+ ctx->thr = 0;
+ ctx->flags = 0;
+ ctx->format = QUIC_DUMP_FMT_ONELINE;
+
+ if (strcmp(args[argc], "oneline") == 0) {
+ /* format already used as default value */
+ ++argc;
+ }
+ else if (strcmp(args[argc], "full") == 0) {
+ ctx->format = QUIC_DUMP_FMT_FULL;
+ ++argc;
+ }
+
+ while (*args[argc]) {
+ if (strcmp(args[argc], "all") == 0)
+ ctx->flags |= QC_CLI_FL_SHOW_ALL;
+
+ ++argc;
+ }
+
+ LIST_INIT(&ctx->bref.users);
+
+ return 0;
+}
+
+/* Dump for "show quic" with "oneline" format. */
+static void dump_quic_oneline(struct show_quic_ctx *ctx, struct quic_conn *qc)
+{
+ char bufaddr[INET6_ADDRSTRLEN], bufport[6];
+ int ret;
+ unsigned char cid_len;
+
+ ret = chunk_appendf(&trash, "%p[%02u]/%-.12s ", qc, ctx->thr,
+ qc->li->bind_conf->frontend->id);
+ chunk_appendf(&trash, "%*s", 36 - ret, " "); /* align output */
+
+ /* State */
+ if (qc->flags & QUIC_FL_CONN_CLOSING)
+ chunk_appendf(&trash, "CLOSE ");
+ else if (qc->flags & QUIC_FL_CONN_DRAINING)
+ chunk_appendf(&trash, "DRAIN ");
+ else if (qc->state < QUIC_HS_ST_COMPLETE)
+ chunk_appendf(&trash, "HDSHK ");
+ else
+ chunk_appendf(&trash, "ESTAB ");
+
+ /* Bytes in flight / Lost packets */
+ chunk_appendf(&trash, "%9llu %6llu %6llu ",
+ (ullong)qc->path->in_flight,
+ (ullong)qc->path->ifae_pkts,
+ (ullong)qc->path->loss.nb_lost_pkt);
+
+ /* Socket */
+ if (qc->local_addr.ss_family == AF_INET ||
+ qc->local_addr.ss_family == AF_INET6) {
+ addr_to_str(&qc->local_addr, bufaddr, sizeof(bufaddr));
+ port_to_str(&qc->local_addr, bufport, sizeof(bufport));
+ chunk_appendf(&trash, "%15s:%-5s ", bufaddr, bufport);
+
+ addr_to_str(&qc->peer_addr, bufaddr, sizeof(bufaddr));
+ port_to_str(&qc->peer_addr, bufport, sizeof(bufport));
+ chunk_appendf(&trash, "%15s:%-5s ", bufaddr, bufport);
+
+ }
+
+ /* CIDs */
+ for (cid_len = 0; cid_len < qc->scid.len; ++cid_len)
+ chunk_appendf(&trash, "%02x", qc->scid.data[cid_len]);
+
+ chunk_appendf(&trash, " ");
+ for (cid_len = 0; cid_len < qc->dcid.len; ++cid_len)
+ chunk_appendf(&trash, "%02x", qc->dcid.data[cid_len]);
+
+ chunk_appendf(&trash, "\n");
+}
+
+/* Dump for "show quic" with "full" format. */
+static void dump_quic_full(struct show_quic_ctx *ctx, struct quic_conn *qc)
+{
+ struct quic_pktns *pktns;
+ struct eb64_node *node;
+ struct qc_stream_desc *stream;
+ char bufaddr[INET6_ADDRSTRLEN], bufport[6];
+ int expire, i, addnl;
+ unsigned char cid_len;
+
+ addnl = 0;
+ /* CIDs */
+ chunk_appendf(&trash, "* %p[%02u]: scid=", qc, ctx->thr);
+ for (cid_len = 0; cid_len < qc->scid.len; ++cid_len)
+ chunk_appendf(&trash, "%02x", qc->scid.data[cid_len]);
+ while (cid_len++ < 20)
+ chunk_appendf(&trash, "..");
+
+ chunk_appendf(&trash, " dcid=");
+ for (cid_len = 0; cid_len < qc->dcid.len; ++cid_len)
+ chunk_appendf(&trash, "%02x", qc->dcid.data[cid_len]);
+ while (cid_len++ < 20)
+ chunk_appendf(&trash, "..");
+
+ chunk_appendf(&trash, "\n");
+
+ chunk_appendf(&trash, " loc. TPs:");
+ quic_transport_params_dump(&trash, qc, &qc->rx.params);
+ chunk_appendf(&trash, "\n");
+ chunk_appendf(&trash, " rem. TPs:");
+ quic_transport_params_dump(&trash, qc, &qc->tx.params);
+ chunk_appendf(&trash, "\n");
+
+ /* Connection state */
+ if (qc->flags & QUIC_FL_CONN_CLOSING)
+ chunk_appendf(&trash, " st=closing ");
+ else if (qc->flags & QUIC_FL_CONN_DRAINING)
+ chunk_appendf(&trash, " st=draining ");
+ else if (qc->state < QUIC_HS_ST_CONFIRMED)
+ chunk_appendf(&trash, " st=handshake ");
+ else
+ chunk_appendf(&trash, " st=opened ");
+
+ if (qc->mux_state == QC_MUX_NULL)
+ chunk_appendf(&trash, "mux=null ");
+ else if (qc->mux_state == QC_MUX_READY)
+ chunk_appendf(&trash, "mux=ready ");
+ else
+ chunk_appendf(&trash, "mux=released ");
+
+ if (qc->idle_timer_task) {
+ expire = qc->idle_timer_task->expire;
+ chunk_appendf(&trash, "expire=%02ds ",
+ TICKS_TO_MS(tick_remain(now_ms, expire)) / 1000);
+ }
+
+ chunk_appendf(&trash, "\n");
+
+ /* Socket */
+ chunk_appendf(&trash, " fd=%d", qc->fd);
+ if (qc->local_addr.ss_family == AF_INET ||
+ qc->local_addr.ss_family == AF_INET6) {
+ addr_to_str(&qc->local_addr, bufaddr, sizeof(bufaddr));
+ port_to_str(&qc->local_addr, bufport, sizeof(bufport));
+ chunk_appendf(&trash, " local_addr=%s:%s", bufaddr, bufport);
+
+ addr_to_str(&qc->peer_addr, bufaddr, sizeof(bufaddr));
+ port_to_str(&qc->peer_addr, bufport, sizeof(bufport));
+ chunk_appendf(&trash, " foreign_addr=%s:%s", bufaddr, bufport);
+ }
+
+ chunk_appendf(&trash, "\n");
+
+ /* Packet number spaces information */
+ pktns = qc->ipktns;
+ if (pktns) {
+ chunk_appendf(&trash, " [initl] rx.ackrng=%-6zu tx.inflight=%-6zu",
+ pktns->rx.arngs.sz, pktns->tx.in_flight);
+ }
+
+ pktns = qc->hpktns;
+ if (pktns) {
+ chunk_appendf(&trash, " [hndshk] rx.ackrng=%-6zu tx.inflight=%-6zu\n",
+ pktns->rx.arngs.sz, pktns->tx.in_flight);
+ }
+
+ pktns = qc->apktns;
+ if (pktns) {
+ chunk_appendf(&trash, " [01rtt] rx.ackrng=%-6zu tx.inflight=%-6zu\n",
+ pktns->rx.arngs.sz, pktns->tx.in_flight);
+ }
+
+ chunk_appendf(&trash, " srtt=%-4u rttvar=%-4u rttmin=%-4u ptoc=%-4u cwnd=%-6llu"
+ " mcwnd=%-6llu sentpkts=%-6llu lostpkts=%-6llu\n reorderedpkts=%-6llu",
+ qc->path->loss.srtt, qc->path->loss.rtt_var,
+ qc->path->loss.rtt_min, qc->path->loss.pto_count, (ullong)qc->path->cwnd,
+ (ullong)qc->path->mcwnd, (ullong)qc->cntrs.sent_pkt, (ullong)qc->path->loss.nb_lost_pkt, (ullong)qc->path->loss.nb_reordered_pkt);
+
+ if (qc->cntrs.dropped_pkt) {
+ chunk_appendf(&trash, " droppkts=%-6llu", qc->cntrs.dropped_pkt);
+ addnl = 1;
+ }
+ if (qc->cntrs.dropped_pkt_bufoverrun) {
+ chunk_appendf(&trash, " dropbuff=%-6llu", qc->cntrs.dropped_pkt_bufoverrun);
+ addnl = 1;
+ }
+ if (qc->cntrs.dropped_parsing) {
+ chunk_appendf(&trash, " droppars=%-6llu", qc->cntrs.dropped_parsing);
+ addnl = 1;
+ }
+ if (qc->cntrs.socket_full) {
+ chunk_appendf(&trash, " sockfull=%-6llu", qc->cntrs.socket_full);
+ addnl = 1;
+ }
+ if (qc->cntrs.sendto_err) {
+ chunk_appendf(&trash, " sendtoerr=%-6llu", qc->cntrs.sendto_err);
+ addnl = 1;
+ }
+ if (qc->cntrs.sendto_err_unknown) {
+ chunk_appendf(&trash, " sendtounknerr=%-6llu", qc->cntrs.sendto_err);
+ addnl = 1;
+ }
+ if (qc->cntrs.conn_migration_done) {
+ chunk_appendf(&trash, " migrdone=%-6llu", qc->cntrs.conn_migration_done);
+ addnl = 1;
+ }
+ if (qc->cntrs.data_blocked) {
+ chunk_appendf(&trash, " datablocked=%-6llu", qc->cntrs.data_blocked);
+ addnl = 1;
+ }
+ if (qc->cntrs.stream_data_blocked) {
+ chunk_appendf(&trash, " sdatablocked=%-6llu", qc->cntrs.stream_data_blocked);
+ addnl = 1;
+ }
+ if (qc->cntrs.streams_blocked_bidi) {
+ chunk_appendf(&trash, " sblockebidi=%-6llu", qc->cntrs.streams_blocked_bidi);
+ addnl = 1;
+ }
+ if (qc->cntrs.streams_blocked_uni) {
+ chunk_appendf(&trash, " sblockeduni=%-6llu", qc->cntrs.streams_blocked_uni);
+ addnl = 1;
+ }
+ if (addnl)
+ chunk_appendf(&trash, "\n");
+
+ /* Streams */
+ node = eb64_first(&qc->streams_by_id);
+ i = 0;
+ while (node) {
+ stream = eb64_entry(node, struct qc_stream_desc, by_id);
+ node = eb64_next(node);
+
+ chunk_appendf(&trash, " | stream=%-8llu", (unsigned long long)stream->by_id.key);
+ chunk_appendf(&trash, " off=%-8llu ack=%-8llu",
+ (unsigned long long)stream->buf_offset,
+ (unsigned long long)stream->ack_offset);
+
+ if (!(++i % 3)) {
+ chunk_appendf(&trash, "\n");
+ i = 0;
+ }
+ }
+
+ chunk_appendf(&trash, "\n");
+}
+
+static int cli_io_handler_dump_quic(struct appctx *appctx)
+{
+ struct show_quic_ctx *ctx = appctx->svcctx;
+ struct stconn *sc = appctx_sc(appctx);
+ struct quic_conn *qc;
+
+ thread_isolate();
+
+ if (ctx->thr >= global.nbthread)
+ goto done;
+
+ /* FIXME: Don't watch the other side !*/
+ if (unlikely(sc_opposite(sc)->flags & SC_FL_SHUT_DONE)) {
+ /* If we're forced to shut down, we might have to remove our
+ * reference to the last stream being dumped.
+ */
+ if (!LIST_ISEMPTY(&ctx->bref.users))
+ LIST_DEL_INIT(&ctx->bref.users);
+ goto done;
+ }
+
+ chunk_reset(&trash);
+
+ if (!LIST_ISEMPTY(&ctx->bref.users)) {
+ /* Remove show_quic_ctx from previous quic_conn instance. */
+ LIST_DEL_INIT(&ctx->bref.users);
+ }
+ else if (!ctx->bref.ref) {
+ /* First invocation. */
+ ctx->bref.ref = ha_thread_ctx[ctx->thr].quic_conns.n;
+
+ /* Print legend for oneline format. */
+ if (ctx->format == QUIC_DUMP_FMT_ONELINE) {
+ chunk_appendf(&trash, "# conn/frontend state "
+ "in_flight infl_p lost_p "
+ "Local Address Foreign Address "
+ "local & remote CIDs\n");
+ applet_putchk(appctx, &trash);
+ }
+ }
+
+ while (1) {
+ int done = 0;
+
+ if (ctx->bref.ref == &ha_thread_ctx[ctx->thr].quic_conns) {
+ /* If closing connections requested through "all", move
+ * to quic_conns_clo list after browsing quic_conns.
+ * Else move directly to the next quic_conns thread.
+ */
+ if (ctx->flags & QC_CLI_FL_SHOW_ALL) {
+ ctx->bref.ref = ha_thread_ctx[ctx->thr].quic_conns_clo.n;
+ continue;
+ }
+
+ done = 1;
+ }
+ else if (ctx->bref.ref == &ha_thread_ctx[ctx->thr].quic_conns_clo) {
+ /* Closing list entirely browsed, go to next quic_conns
+ * thread.
+ */
+ done = 1;
+ }
+ else {
+ /* Retrieve next element of the current list. */
+ qc = LIST_ELEM(ctx->bref.ref, struct quic_conn *, el_th_ctx);
+ if ((int)(qc->qc_epoch - ctx->epoch) > 0)
+ done = 1;
+ }
+
+ if (done) {
+ ++ctx->thr;
+ if (ctx->thr >= global.nbthread)
+ break;
+ /* Switch to next thread quic_conns list. */
+ ctx->bref.ref = ha_thread_ctx[ctx->thr].quic_conns.n;
+ continue;
+ }
+
+ switch (ctx->format) {
+ case QUIC_DUMP_FMT_FULL:
+ dump_quic_full(ctx, qc);
+ break;
+ case QUIC_DUMP_FMT_ONELINE:
+ dump_quic_oneline(ctx, qc);
+ break;
+ }
+
+ if (applet_putchk(appctx, &trash) == -1) {
+ /* Register show_quic_ctx to quic_conn instance. */
+ LIST_APPEND(&qc->back_refs, &ctx->bref.users);
+ goto full;
+ }
+
+ ctx->bref.ref = qc->el_th_ctx.n;
+ }
+
+ done:
+ thread_release();
+ return 1;
+
+ full:
+ thread_release();
+ return 0;
+}
+
+static void cli_release_show_quic(struct appctx *appctx)
+{
+ struct show_quic_ctx *ctx = appctx->svcctx;
+
+ if (ctx->thr < global.nbthread) {
+ thread_isolate();
+ if (!LIST_ISEMPTY(&ctx->bref.users))
+ LIST_DEL_INIT(&ctx->bref.users);
+ thread_release();
+ }
+}
+
+static struct cli_kw_list cli_kws = {{ }, {
+ { { "show", "quic", NULL }, "show quic [oneline|full] [all] : display quic connections status", cli_parse_show_quic, cli_io_handler_dump_quic, cli_release_show_quic },
+ {{},}
+}};
+
+INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
+
+static void cli_quic_init()
+{
+ int thr;
+
+ for (thr = 0; thr < MAX_THREADS; ++thr) {
+ LIST_INIT(&ha_thread_ctx[thr].quic_conns);
+ LIST_INIT(&ha_thread_ctx[thr].quic_conns_clo);
+ }
+}
+INITCALL0(STG_INIT, cli_quic_init);