[unit] Add dummy source for netfilter-conntrack API functions. JB#60770

Easier to get various tests to build with a dummy source for the
netfilter-conntrack API functions.

connman/Makefile.am

@@ -452,7 +452,7 @@ if XTABLES
 unit_test_firewall_iptables_SOURCES = $(backtrace_sources) src/connman.h \
 				src/log.c src/inotify.c src/dbus.c src/error.c \
 				src/inet.c src/iptables-validate.c \
-				unit/test-firewall-iptables.c
+				unit/nfct_dummy.c unit/test-firewall-iptables.c
 unit_test_firewall_iptables_LDADD = @GLIB_LIBS@ @DBUS_LIBS@ -ldl
 endif
 
@@ -644,12 +644,12 @@ tools_stats_tool_LDADD = @GLIB_LIBS@
 
 tools_dhcp_test_SOURCES = $(backtrace_sources) src/log.c src/util.c \
 		 $(gdhcp_sources) src/inet.c tools/dhcp-test.c src/shared/arp.c \
-		src/wakeup_timer.c
+		src/wakeup_timer.c unit/nfct_dummy.c
 tools_dhcp_test_LDADD = @GLIB_LIBS@ -ldl
 
 tools_dhcp_server_test_SOURCES =  $(backtrace_sources) src/log.c src/util.c \
-		$(gdhcp_sources) src/inet.c tools/dhcp-server-test.c src/shared/arp.c \
-		src/wakeup_timer.c 
+		$(gdhcp_sources) src/inet.c tools/dhcp-server-test.c \
+		src/shared/arp.c src/wakeup_timer.c unit/nfct_dummy.c
 tools_dhcp_server_test_LDADD = @GLIB_LIBS@ -ldl
 
 tools_dbus_test_SOURCES = tools/dbus-test.c
@@ -685,7 +685,7 @@ tools_iptables_unit_CFLAGS = @DBUS_CFLAGS@ @GLIB_CFLAGS@ @XTABLES_CFLAGS@ \
 tools_iptables_unit_SOURCES = $(backtrace_sources) src/log.c src/storage.c \
 		src/inotify.c src/iptables.c src/nat.c \
 		src/inet.c src/iptables-validate.c tools/iptables-unit.c \
-		src/error.c src/dbus.c
+		src/error.c src/dbus.c unit/nfct_dummy.c
 tools_iptables_unit_LDADD = @GLIB_LIBS@ @DBUS_LIBS@ @XTABLES_LIBS@ @LIBIPTC_LIBS@ -ldl
 
 tools_ip6tables_test_SOURCES = $(backtrace_sources) src/log.c \

connman/unit/nfct_dummy.c

@@ -0,0 +1,136 @@
+/*
+ *  ConnMan netfilter-conntrack dummy functions
+ *
+ *  Copyright (C) 2024  xxx
+ *
+ *  Contact: [email protected]
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <unistd.h>
+
+#include <libnetfilter_conntrack/libnetfilter_conntrack.h>
+
+struct nfct_handle *nfct_open(uint8_t subsys_id, unsigned int subscriptions)
+{
+	return NULL;
+}
+
+int nfct_close(struct nfct_handle *cth)
+{
+	g_assert(cth);
+	return 0;
+}
+
+struct nf_conntrack *nfct_new(void)
+{
+	return NULL;
+}
+
+void nfct_destroy(struct nf_conntrack *ct)
+{
+	g_assert(ct);
+	return;
+}
+
+int nfct_callback_register(struct nfct_handle *h,
+				enum nf_conntrack_msg_type type,
+				int (*cb)(enum nf_conntrack_msg_type type,
+						struct nf_conntrack *ct,
+						void *data),
+				void *data)
+{
+	g_assert(h);
+	g_assert(cb);
+
+	return 0;
+}
+
+void nfct_callback_unregister(struct nfct_handle *h)
+{
+	g_assert(h);
+}
+
+void nfct_set_attr(struct nf_conntrack *ct,
+				const enum nf_conntrack_attr type,
+				const void *value)
+{
+	g_assert(ct);
+	g_assert(value);
+	return;
+}
+
+void nfct_set_attr_u8(struct nf_conntrack *ct,
+				const enum nf_conntrack_attr type,
+				uint8_t value)
+{
+	g_assert(ct);
+	return;
+}
+
+void nfct_set_attr_u16(struct nf_conntrack *ct,
+				const enum nf_conntrack_attr type,
+				uint16_t value)
+{
+	g_assert(ct);
+	return;
+}
+
+void nfct_set_attr_u32(struct nf_conntrack *ct,
+				const enum nf_conntrack_attr type,
+				uint32_t value)
+{
+	g_assert(ct);
+	return;
+}
+
+
+
+const void *nfct_get_attr(const struct nf_conntrack *ct,
+					const enum nf_conntrack_attr type)
+{
+	g_assert(ct);
+	return NULL;
+}
+
+uint8_t nfct_get_attr_u8(const struct nf_conntrack *ct,
+					 const enum nf_conntrack_attr type)
+{
+	g_assert(ct);
+	return 0;
+}
+
+uint16_t nfct_get_attr_u16(const struct nf_conntrack *ct,
+					const enum nf_conntrack_attr type)
+{
+	g_assert(ct);
+	return 0;
+}
+
+uint32_t nfct_get_attr_u32(const struct nf_conntrack *ct,
+					const enum nf_conntrack_attr type)
+{
+	g_assert(ct);
+	return 0;
+}
+
+int nfct_query(struct nfct_handle *h, const enum nf_conntrack_query query,
+					const void *data)
+{
+	g_assert(h);
+	return 0;
+}
+