1 files changed, 83 insertions, 0 deletions
diff --git a/src/network/networkd-util.h b/src/network/networkd-util.h
new file mode 100644
index 0000000..6100a00
--- /dev/null
+++ b/src/network/networkd-util.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "sd-dhcp-lease.h"
+#include "sd-netlink.h"
+
+#include "conf-parser.h"
+#include "hashmap.h"
+#include "log.h"
+#include "macro.h"
+#include "string-util.h"
+
+typedef enum AddressFamily {
+        /* This is a bitmask, though it usually doesn't feel that way! */
+        ADDRESS_FAMILY_NO             = 0,
+        ADDRESS_FAMILY_IPV4           = 1 << 0,
+        ADDRESS_FAMILY_IPV6           = 1 << 1,
+        ADDRESS_FAMILY_YES            = ADDRESS_FAMILY_IPV4 | ADDRESS_FAMILY_IPV6,
+        ADDRESS_FAMILY_FALLBACK_IPV4  = 1 << 2,
+        ADDRESS_FAMILY_FALLBACK       = ADDRESS_FAMILY_FALLBACK_IPV4 | ADDRESS_FAMILY_IPV6,
+        _ADDRESS_FAMILY_MAX,
+        _ADDRESS_FAMILY_INVALID = -1,
+} AddressFamily;
+
+typedef struct NetworkConfigSection {
+        unsigned line;
+        bool invalid;
+        char filename[];
+} NetworkConfigSection;
+
+CONFIG_PARSER_PROTOTYPE(config_parse_link_local_address_family);
+CONFIG_PARSER_PROTOTYPE(config_parse_address_family_with_kernel);
+
+const char *address_family_to_string(AddressFamily b) _const_;
+AddressFamily address_family_from_string(const char *s) _pure_;
+
+const char *link_local_address_family_to_string(AddressFamily b) _const_;
+AddressFamily link_local_address_family_from_string(const char *s) _pure_;
+
+const char *routing_policy_rule_address_family_to_string(AddressFamily b) _const_;
+AddressFamily routing_policy_rule_address_family_from_string(const char *s) _pure_;
+
+const char *duplicate_address_detection_address_family_to_string(AddressFamily b) _const_;
+AddressFamily duplicate_address_detection_address_family_from_string(const char *s) _pure_;
+
+const char *dhcp_lease_server_type_to_string(sd_dhcp_lease_server_type t) _const_;
+sd_dhcp_lease_server_type dhcp_lease_server_type_from_string(const char *s) _pure_;
+
+int kernel_route_expiration_supported(void);
+
+int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s);
+void network_config_section_free(NetworkConfigSection *network);
+DEFINE_TRIVIAL_CLEANUP_FUNC(NetworkConfigSection*, network_config_section_free);
+extern const struct hash_ops network_config_hash_ops;
+unsigned hashmap_find_free_section_line(Hashmap *hashmap);
+
+static inline bool section_is_invalid(NetworkConfigSection *section) {
+        /* If this returns false, then it does _not_ mean the section is valid. */
+
+        if (!section)
+                return false;
+
+        return section->invalid;
+}
+
+#define DEFINE_NETWORK_SECTION_FUNCTIONS(type, free_func)               \
+        static inline void free_func##_or_set_invalid(type *p) {        \
+                assert(p);                                              \
+                                                                        \
+                if (p->section)                                         \
+                        p->section->invalid = true;                     \
+                else                                                    \
+                        free_func(p);                                   \
+        }                                                               \
+        DEFINE_TRIVIAL_CLEANUP_FUNC(type*, free_func);                  \
+        DEFINE_TRIVIAL_CLEANUP_FUNC(type*, free_func##_or_set_invalid);
+
+static inline int log_message_warning_errno(sd_netlink_message *m, int err, const char *msg) {
+        const char *err_msg = NULL;
+
+        (void) sd_netlink_message_read_string(m, NLMSGERR_ATTR_MSG, &err_msg);
+        return log_warning_errno(err, "%s: %s%s%m", msg, strempty(err_msg), err_msg ? " " : "");
+}