1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
8 #include "conf-parser.h"
9 #include "firewall-util.h"
10 #include "hash-funcs.h"
11 #include "in-addr-util.h"
12 #include "network-util.h"
13 #include "networkd-link.h"
14 #include "networkd-util.h"
15 #include "time-util.h"
17 typedef struct Address Address
;
18 typedef struct Manager Manager
;
19 typedef struct Network Network
;
20 typedef struct Request Request
;
21 typedef int (*address_ready_callback_t
)(Address
*address
);
22 typedef int (*address_netlink_handler_t
)(
24 sd_netlink_message
*m
,
32 ConfigSection
*section
;
33 NetworkConfigSource source
;
34 NetworkConfigState state
;
35 union in_addr_union provider
; /* DHCP server or router address */
38 unsigned char prefixlen
;
41 uint32_t route_metric
; /* route metric for prefix route */
42 char *label
, *netlabel
;
45 struct in_addr broadcast
;
47 union in_addr_union in_addr
;
48 union in_addr_union in_addr_peer
;
50 /* These are absolute points in time, and NOT timespans/durations.
51 * Must be specified with clock_boottime_or_monotonic(). */
52 usec_t lifetime_valid_usec
;
53 usec_t lifetime_preferred_usec
;
56 bool ip_masquerade_done
:1;
57 bool requested_as_null
:1;
59 /* duplicate_address_detection is only used by static or IPv4 dynamic addresses.
60 * To control DAD for IPv6 dynamic addresses, set IFA_F_NODAD to flags. */
61 AddressFamily duplicate_address_detection
;
63 /* Called when address become ready */
64 address_ready_callback_t callback
;
66 NFTSetContext nft_set_context
;
69 const char* format_lifetime(char *buf
, size_t l
, usec_t lifetime_usec
) _warn_unused_result_
;
70 /* Note: the lifetime of the compound literal is the immediately surrounding block,
71 * see C11 ยง6.5.2.5, and
72 * https://stackoverflow.com/questions/34880638/compound-literal-lifetime-and-if-blocks */
73 #define FORMAT_LIFETIME(lifetime) \
74 format_lifetime((char[FORMAT_TIMESPAN_MAX+STRLEN("for ")]){}, FORMAT_TIMESPAN_MAX+STRLEN("for "), lifetime)
76 int address_flags_to_string_alloc(uint32_t flags
, int family
, char **ret
);
78 void link_get_address_states(
80 LinkAddressState
*ret_ipv4
,
81 LinkAddressState
*ret_ipv6
,
82 LinkAddressState
*ret_all
);
84 extern const struct hash_ops address_hash_ops
;
86 int address_new(Address
**ret
);
87 int address_new_static(Network
*network
, const char *filename
, unsigned section_line
, Address
**ret
);
88 Address
* address_free(Address
*address
);
89 int address_get(Link
*link
, const Address
*in
, Address
**ret
);
90 int address_get_harder(Link
*link
, const Address
*in
, Address
**ret
);
91 int address_configure_handler_internal(sd_netlink
*rtnl
, sd_netlink_message
*m
, Link
*link
, const char *error_msg
);
92 int address_remove(Address
*address
);
93 int address_remove_and_drop(Address
*address
);
94 int address_dup(const Address
*src
, Address
**ret
);
95 bool address_is_ready(const Address
*a
);
96 bool link_check_addresses_ready(Link
*link
, NetworkConfigSource source
);
98 DEFINE_SECTION_CLEANUP_FUNCTIONS(Address
, address_free
);
100 int link_drop_managed_addresses(Link
*link
);
101 int link_drop_foreign_addresses(Link
*link
);
102 int link_drop_ipv6ll_addresses(Link
*link
);
103 void link_foreignize_addresses(Link
*link
);
104 bool link_address_is_dynamic(const Link
*link
, const Address
*address
);
105 int link_get_address(Link
*link
, int family
, const union in_addr_union
*address
, unsigned char prefixlen
, Address
**ret
);
106 static inline int link_get_ipv6_address(Link
*link
, const struct in6_addr
*address
, unsigned char prefixlen
, Address
**ret
) {
108 return link_get_address(link
, AF_INET6
, &(union in_addr_union
) { .in6
= *address
}, prefixlen
, ret
);
110 static inline int link_get_ipv4_address(Link
*link
, const struct in_addr
*address
, unsigned char prefixlen
, Address
**ret
) {
112 return link_get_address(link
, AF_INET
, &(union in_addr_union
) { .in
= *address
}, prefixlen
, ret
);
114 int manager_get_address(Manager
*manager
, int family
, const union in_addr_union
*address
, unsigned char prefixlen
, Address
**ret
);
115 bool manager_has_address(Manager
*manager
, int family
, const union in_addr_union
*address
);
117 void address_cancel_request(Address
*address
);
118 int link_request_address(
120 const Address
*address
,
121 unsigned *message_counter
,
122 address_netlink_handler_t netlink_handler
,
124 int link_request_static_address(Link
*link
, const Address
*address
);
125 int link_request_static_addresses(Link
*link
);
127 int manager_rtnl_process_address(sd_netlink
*nl
, sd_netlink_message
*message
, Manager
*m
);
129 int address_section_verify(Address
*address
);
130 int network_drop_invalid_addresses(Network
*network
);
132 DEFINE_NETWORK_CONFIG_STATE_FUNCTIONS(Address
, address
);
134 void link_mark_addresses(Link
*link
, NetworkConfigSource source
);
136 CONFIG_PARSER_PROTOTYPE(config_parse_address
);
137 CONFIG_PARSER_PROTOTYPE(config_parse_broadcast
);
138 CONFIG_PARSER_PROTOTYPE(config_parse_label
);
139 CONFIG_PARSER_PROTOTYPE(config_parse_lifetime
);
140 CONFIG_PARSER_PROTOTYPE(config_parse_address_flags
);
141 CONFIG_PARSER_PROTOTYPE(config_parse_address_scope
);
142 CONFIG_PARSER_PROTOTYPE(config_parse_address_route_metric
);
143 CONFIG_PARSER_PROTOTYPE(config_parse_duplicate_address_detection
);
144 CONFIG_PARSER_PROTOTYPE(config_parse_address_netlabel
);
145 CONFIG_PARSER_PROTOTYPE(config_parse_address_ip_nft_set
);