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-rw-r--r--src/network/networkd-util.h168
1 files changed, 168 insertions, 0 deletions
diff --git a/src/network/networkd-util.h b/src/network/networkd-util.h
new file mode 100644
index 0000000..8bdf8e8
--- /dev/null
+++ b/src/network/networkd-util.h
@@ -0,0 +1,168 @@
+/* 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 "network-util.h"
+#include "string-util.h"
+
+typedef struct Link Link;
+
+typedef enum NetworkConfigSource {
+ NETWORK_CONFIG_SOURCE_FOREIGN, /* configured by kernel */
+ NETWORK_CONFIG_SOURCE_STATIC,
+ NETWORK_CONFIG_SOURCE_IPV4LL,
+ NETWORK_CONFIG_SOURCE_DHCP4,
+ NETWORK_CONFIG_SOURCE_DHCP6,
+ NETWORK_CONFIG_SOURCE_DHCP_PD,
+ NETWORK_CONFIG_SOURCE_NDISC,
+ NETWORK_CONFIG_SOURCE_RUNTIME, /* through D-Bus method */
+ _NETWORK_CONFIG_SOURCE_MAX,
+ _NETWORK_CONFIG_SOURCE_INVALID = -EINVAL,
+} NetworkConfigSource;
+
+typedef enum NetworkConfigState {
+ NETWORK_CONFIG_STATE_REQUESTING = 1 << 0, /* request is queued */
+ NETWORK_CONFIG_STATE_CONFIGURING = 1 << 1, /* e.g. address_configure() is called, but no response is received yet */
+ NETWORK_CONFIG_STATE_CONFIGURED = 1 << 2, /* e.g. address_configure() is called and received a response from kernel.
+ * Note that address may not be ready yet, so please use address_is_ready()
+ * to check whether the address can be usable or not. */
+ NETWORK_CONFIG_STATE_MARKED = 1 << 3, /* used GC'ing the old config */
+ NETWORK_CONFIG_STATE_REMOVING = 1 << 4, /* e.g. address_remove() is called, but no response is received yet */
+} NetworkConfigState;
+
+static inline usec_t sec_to_usec(uint32_t sec, usec_t timestamp_usec) {
+ return
+ sec == 0 ? 0 :
+ sec == UINT32_MAX ? USEC_INFINITY :
+ usec_add(timestamp_usec, sec * USEC_PER_SEC);
+}
+
+static inline usec_t sec16_to_usec(uint16_t sec, usec_t timestamp_usec) {
+ return sec_to_usec(sec == UINT16_MAX ? UINT32_MAX : (uint32_t) sec, timestamp_usec);
+}
+
+static inline uint32_t usec_to_sec(usec_t usec, usec_t now_usec) {
+ return MIN(DIV_ROUND_UP(usec_sub_unsigned(usec, now_usec), USEC_PER_SEC), UINT32_MAX);
+}
+
+CONFIG_PARSER_PROTOTYPE(config_parse_link_local_address_family);
+CONFIG_PARSER_PROTOTYPE(config_parse_address_family_with_kernel);
+CONFIG_PARSER_PROTOTYPE(config_parse_ip_masquerade);
+CONFIG_PARSER_PROTOTYPE(config_parse_mud_url);
+
+const char *network_config_source_to_string(NetworkConfigSource s) _const_;
+
+int network_config_state_to_string_alloc(NetworkConfigState s, char **ret);
+
+#define DEFINE_NETWORK_CONFIG_STATE_FUNCTIONS(type, name) \
+ static inline void name##_update_state( \
+ type *t, \
+ NetworkConfigState mask, \
+ NetworkConfigState value) { \
+ \
+ assert(t); \
+ \
+ t->state = (t->state & ~mask) | (value & mask); \
+ } \
+ static inline bool name##_exists(const type *t) { \
+ assert(t); \
+ \
+ if ((t->state & (NETWORK_CONFIG_STATE_CONFIGURING | \
+ NETWORK_CONFIG_STATE_CONFIGURED)) == 0) \
+ return false; /* Not assigned yet. */ \
+ if (FLAGS_SET(t->state, NETWORK_CONFIG_STATE_REMOVING)) \
+ return false; /* Already removing. */ \
+ return true; \
+ } \
+ static inline void name##_enter_requesting(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_REQUESTING, \
+ NETWORK_CONFIG_STATE_REQUESTING); \
+ } \
+ static inline void name##_cancel_requesting(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_REQUESTING, \
+ 0); \
+ } \
+ static inline bool name##_is_requesting(const type *t) { \
+ return FLAGS_SET(t->state, NETWORK_CONFIG_STATE_REQUESTING); \
+ } \
+ static inline void name##_enter_configuring(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_REQUESTING | \
+ NETWORK_CONFIG_STATE_CONFIGURING | \
+ NETWORK_CONFIG_STATE_REMOVING, \
+ NETWORK_CONFIG_STATE_CONFIGURING); \
+ } \
+ static inline void name##_enter_configured(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_CONFIGURING | \
+ NETWORK_CONFIG_STATE_CONFIGURED, \
+ NETWORK_CONFIG_STATE_CONFIGURED); \
+ } \
+ static inline void name##_mark(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_MARKED, \
+ NETWORK_CONFIG_STATE_MARKED); \
+ } \
+ static inline void name##_unmark(type *t) { \
+ name##_update_state(t, NETWORK_CONFIG_STATE_MARKED, 0); \
+ } \
+ static inline bool name##_is_marked(const type *t) { \
+ assert(t); \
+ return FLAGS_SET(t->state, NETWORK_CONFIG_STATE_MARKED); \
+ } \
+ static inline void name##_enter_removing(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_MARKED | \
+ NETWORK_CONFIG_STATE_REMOVING, \
+ NETWORK_CONFIG_STATE_REMOVING); \
+ } \
+ static inline bool name##_is_removing(const type *t) { \
+ assert(t); \
+ return FLAGS_SET(t->state, NETWORK_CONFIG_STATE_REMOVING); \
+ } \
+ static inline void name##_enter_removed(type *t) { \
+ name##_update_state(t, \
+ NETWORK_CONFIG_STATE_CONFIGURED | \
+ NETWORK_CONFIG_STATE_REMOVING, \
+ 0); \
+ }
+
+const char *address_family_to_string(AddressFamily b) _const_;
+AddressFamily address_family_from_string(const char *s) _pure_;
+
+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 *nexthop_address_family_to_string(AddressFamily b) _const_;
+AddressFamily nexthop_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_;
+
+AddressFamily dhcp_deprecated_address_family_from_string(const char *s) _pure_;
+
+const char *dhcp_lease_server_type_to_string(sd_dhcp_lease_server_type_t t) _const_;
+sd_dhcp_lease_server_type_t dhcp_lease_server_type_from_string(const char *s) _pure_;
+
+int log_link_message_full_errno(Link *link, sd_netlink_message *m, int level, int err, const char *msg);
+#define log_link_message_error_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_ERR, err, msg)
+#define log_link_message_warning_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_WARNING, err, msg)
+#define log_link_message_notice_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_NOTICE, err, msg)
+#define log_link_message_info_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_INFO, err, msg)
+#define log_link_message_debug_errno(link, m, err, msg) log_link_message_full_errno(link, m, LOG_DEBUG, err, msg)
+#define log_message_full_errno(m, level, err, msg) log_link_message_full_errno(NULL, m, level, err, msg)
+#define log_message_error_errno(m, err, msg) log_message_full_errno(m, LOG_ERR, err, msg)
+#define log_message_warning_errno(m, err, msg) log_message_full_errno(m, LOG_WARNING, err, msg)
+#define log_message_notice_errno(m, err, msg) log_message_full_errno(m, LOG_NOTICE, err, msg)
+#define log_message_info_errno(m, err, msg) log_message_full_errno(m, LOG_INFO, err, msg)
+#define log_message_debug_errno(m, err, msg) log_message_full_errno(m, LOG_DEBUG, err, msg)