From eafee9c3f91879afa82749fa1d8cd2b0b53a5d5c Mon Sep 17 00:00:00 2001
From: Lorenz Kästle <12514511+RincewindsHat@users.noreply.github.com>
Date: Mon, 28 Apr 2025 22:01:01 +0200
Subject: WIP: check_icmp refactor

---
 plugins-root/check_icmp.d/check_icmp_helpers.c | 142 +++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 plugins-root/check_icmp.d/check_icmp_helpers.c

(limited to 'plugins-root/check_icmp.d/check_icmp_helpers.c')

diff --git a/plugins-root/check_icmp.d/check_icmp_helpers.c b/plugins-root/check_icmp.d/check_icmp_helpers.c
new file mode 100644
index 00000000..8f6d7362
--- /dev/null
+++ b/plugins-root/check_icmp.d/check_icmp_helpers.c
@@ -0,0 +1,142 @@
+#include "./config.h"
+#include "states.h"
+#include <math.h>
+#include <netinet/in.h>
+#include "./check_icmp_helpers.h"
+#include "../../plugins/netutils.h"
+
+check_icmp_config check_icmp_config_init() {
+	check_icmp_config tmp = {
+		.source_ip = NULL,
+
+		.order_mode = false,
+		.mos_mode = false,
+		.rta_mode = false,
+		.pl_mode = false,
+		.jitter_mode = false,
+		.score_mode = false,
+
+		.min_hosts_alive = -1,
+		.icmp_data_size = DEFAULT_PING_DATA_SIZE,
+		.icmp_pkt_size = DEFAULT_PING_DATA_SIZE + ICMP_MINLEN,
+		.pkt_interval = DEFAULT_PKT_INTERVAL,
+		.target_interval = 0,
+		.crit = {.pl = DEFAULT_CRIT_PL,
+				 .rta = DEFAULT_CRIT_RTA,
+				 .jitter = 50.0,
+				 .mos = 3.0,
+				 .score = 70.0},
+		.warn = {.pl = DEFAULT_WARN_PL,
+				 .rta = DEFAULT_WARN_RTA,
+				 .jitter = 40.0,
+				 .mos = 3.5,
+				 .score = 80.0},
+		.pid = {},
+		.mode = MODE_RTA,
+		.timeout = DEFAULT_TIMEOUT,
+		.ttl = DEFAULT_TTL,
+
+		.packets = DEFAULT_NUMBER_OF_PACKETS,
+		.number_of_targets = 0,
+		.hosts = NULL,
+	};
+	return tmp;
+}
+
+ping_target ping_target_init() {
+	ping_target tmp = {
+		.rtmin = INFINITY,
+
+		.jitter_min = INFINITY,
+
+		.rta_status = STATE_OK,
+		.jitter_status = STATE_OK,
+		.mos_status = STATE_OK,
+		.score_status = STATE_OK,
+		.pl_status = STATE_OK,
+		.order_status = STATE_OK,
+	};
+
+	return tmp;
+}
+
+check_icmp_state check_icmp_state_init() {
+	check_icmp_state tmp = {.icmp_sent = 0, .icmp_lost = 0, .icmp_recv = 0, .targets_down = 0};
+
+	return tmp;
+}
+
+rta_host_create_wrapper rta_host_create(char *name, struct sockaddr_storage *address) {
+	struct sockaddr_in *sin;
+	struct sockaddr_in6 *sin6;
+	if (address_family == AF_INET) {
+		sin = (struct sockaddr_in *)address;
+	} else {
+		sin6 = (struct sockaddr_in6 *)address;
+	}
+
+	rta_host_create_wrapper result = {
+		.errorcode = OK,
+	};
+
+	/* disregard obviously stupid addresses
+	 * (I didn't find an ipv6 equivalent to INADDR_NONE) */
+	if (((address_family == AF_INET &&
+		  (sin->sin_addr.s_addr == INADDR_NONE || sin->sin_addr.s_addr == INADDR_ANY))) ||
+		(address_family == AF_INET6 && (sin6->sin6_addr.s6_addr == in6addr_any.s6_addr))) {
+		result.errorcode = ERROR;
+		return result;
+	}
+
+	// TODO: Maybe add the following back in as a sanity check for the config
+	// /* no point in adding two identical IP's, so don't. ;) */
+	// struct sockaddr_in *host_sin;
+	// struct sockaddr_in6 *host_sin6;
+	// struct rta_host *host = host_list;
+
+	// while (host) {
+	// 	host_sin = (struct sockaddr_in *)&host->saddr_in;
+	// 	host_sin6 = (struct sockaddr_in6 *)&host->saddr_in;
+
+	// 	if ((address_family == AF_INET && host_sin->sin_addr.s_addr == sin->sin_addr.s_addr) ||
+	// 		(address_family == AF_INET6 &&
+	// 		 host_sin6->sin6_addr.s6_addr == sin6->sin6_addr.s6_addr)) {
+	// 		if (debug) {
+	// 			printf("Identical IP already exists. Not adding %s\n", name);
+	// 		}
+	// 		return -1;
+	// 	}
+	// 	host = host->next;
+	// }
+
+	/* add the fresh ip */
+	ping_target host = ping_target_init();
+
+	/* set the values. use calling name for output */
+	host.name = strdup(name);
+
+	/* fill out the sockaddr_storage struct */
+	if (address_family == AF_INET) {
+		struct sockaddr_in *host_sin = (struct sockaddr_in *)&host.saddr_in;
+		host_sin->sin_family = AF_INET;
+		host_sin->sin_addr.s_addr = sin->sin_addr.s_addr;
+	} else {
+		struct sockaddr_in6 *host_sin6 = (struct sockaddr_in6 *)&host.saddr_in;
+		host_sin6->sin6_family = AF_INET6;
+		memcpy(host_sin6->sin6_addr.s6_addr, sin6->sin6_addr.s6_addr,
+			   sizeof host_sin6->sin6_addr.s6_addr);
+	}
+
+	result.host = host;
+
+	return result;
+}
+
+check_icmp_target_container check_icmp_target_container_init() {
+	check_icmp_target_container tmp = {
+		.name = NULL,
+		.number_of_targets = 0,
+		.target_list = NULL,
+	};
+	return tmp;
+}
-- 
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