Merging upstream version 2.0.3+dfsg (Closes: #923993, #1042533, #1045145).

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/src/streaming/protocol/command-claimed_id.c b/src/streaming/protocol/command-claimed_id.c
new file mode 100644
index 000000000..5392e1d3b
--- /dev/null
+++ b/src/streaming/protocol/command-claimed_id.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "commands.h"
+#include "plugins.d/pluginsd_internals.h"
+
+PARSER_RC rrdpush_receiver_pluginsd_claimed_id(char **words, size_t num_words, PARSER *parser) {
+    const char *machine_guid_str = get_word(words, num_words, 1);
+    const char *claim_id_str = get_word(words, num_words, 2);
+
+    if (!machine_guid_str || !claim_id_str) {
+        netdata_log_error("PLUGINSD: command CLAIMED_ID came malformed, machine_guid '%s', claim_id '%s'",
+                          machine_guid_str ? machine_guid_str : "[unset]",
+                          claim_id_str ? claim_id_str : "[unset]");
+        return PARSER_RC_ERROR;
+    }
+
+    RRDHOST *host = parser->user.host;
+
+    nd_uuid_t machine_uuid;
+    if(uuid_parse(machine_guid_str, machine_uuid)) {
+        netdata_log_error("PLUGINSD: parameter machine guid to CLAIMED_ID command is not valid UUID. "
+                          "Received: '%s'.", machine_guid_str);
+        return PARSER_RC_ERROR;
+    }
+
+    nd_uuid_t claim_uuid;
+    if(strcmp(claim_id_str, "NULL") == 0)
+        uuid_clear(claim_uuid);
+
+    else if(uuid_parse(claim_id_str, claim_uuid) != 0) {
+        netdata_log_error("PLUGINSD: parameter claim id to CLAIMED_ID command is not valid UUID. "
+                          "Received: '%s'.", claim_id_str);
+        return PARSER_RC_ERROR;
+    }
+
+    if(strcmp(machine_guid_str, host->machine_guid) != 0) {
+        netdata_log_error("PLUGINSD: received claim id for host '%s' but it came over the connection of '%s'",
+                          machine_guid_str, host->machine_guid);
+        return PARSER_RC_OK; //the message is OK problem must be somewhere else
+    }
+
+    if(host == localhost) {
+        netdata_log_error("PLUGINSD: CLAIMED_ID command cannot be used to set the claimed id of localhost. "
+                          "Received: '%s'.", claim_id_str);
+        return PARSER_RC_OK;
+    }
+
+    if(!uuid_is_null(claim_uuid)) {
+        uuid_copy(host->aclk.claim_id_of_origin.uuid, claim_uuid);
+        rrdpush_sender_send_claimed_id(host);
+    }
+
+    return PARSER_RC_OK;
+}
+
+void rrdpush_sender_send_claimed_id(RRDHOST *host) {
+    if(!stream_has_capability(host->sender, STREAM_CAP_CLAIM))
+        return;
+
+    if(unlikely(!rrdhost_can_send_definitions_to_parent(host)))
+        return;
+
+    BUFFER *wb = sender_start(host->sender);
+
+    char str[UUID_STR_LEN] = "";
+    ND_UUID uuid = host->aclk.claim_id_of_origin;
+    if(!UUIDiszero(uuid))
+        uuid_unparse_lower(uuid.uuid, str);
+    else
+        strncpyz(str, "NULL", sizeof(str) - 1);
+
+    buffer_sprintf(wb, PLUGINSD_KEYWORD_CLAIMED_ID " '%s' '%s'\n",
+                   host->machine_guid, str);
+
+    sender_commit(host->sender, wb, STREAM_TRAFFIC_TYPE_METADATA);
+
+    sender_thread_buffer_free();
+}