Adding upstream version 255.4.upstream/255.4

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

1 files changed, 165 insertions, 0 deletions

diff --git a/src/network/networkd-util.h b/src/network/networkd-util.h
new file mode 100644
index 0000000..9c360f5
--- /dev/null
+++ b/src/network/networkd-util.h
@@ -0,0 +1,165 @@
+/* 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) {        \
+                assert(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 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)