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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
fc2f9534 | 2 | |
f02ba163 | 3 | #include "condition.h" |
fc2f9534 | 4 | #include "conf-parser.h" |
fc2f9534 | 5 | #include "networkd-util.h" |
6bedfcbb | 6 | #include "parse-util.h" |
8b43440b | 7 | #include "string-table.h" |
07630cea LP |
8 | #include "string-util.h" |
9 | #include "util.h" | |
fc2f9534 | 10 | |
ddc026f3 | 11 | static const char* const address_family_table[_ADDRESS_FAMILY_MAX] = { |
e800fd24 YW |
12 | [ADDRESS_FAMILY_NO] = "no", |
13 | [ADDRESS_FAMILY_YES] = "yes", | |
14 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
15 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
16 | }; | |
17 | ||
ddc026f3 | 18 | static const char* const link_local_address_family_table[_ADDRESS_FAMILY_MAX] = { |
e800fd24 YW |
19 | [ADDRESS_FAMILY_NO] = "no", |
20 | [ADDRESS_FAMILY_YES] = "yes", | |
21 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
22 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
23 | [ADDRESS_FAMILY_FALLBACK] = "fallback", | |
24 | [ADDRESS_FAMILY_FALLBACK_IPV4] = "ipv4-fallback", | |
25 | }; | |
26 | ||
ddc026f3 | 27 | static const char* const routing_policy_rule_address_family_table[_ADDRESS_FAMILY_MAX] = { |
f6c6ff97 YW |
28 | [ADDRESS_FAMILY_YES] = "both", |
29 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
30 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
31 | }; | |
32 | ||
ddc026f3 | 33 | static const char* const duplicate_address_detection_address_family_table[_ADDRESS_FAMILY_MAX] = { |
051e77ca SS |
34 | [ADDRESS_FAMILY_NO] = "none", |
35 | [ADDRESS_FAMILY_YES] = "both", | |
36 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
37 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
38 | }; | |
39 | ||
ddb82ec2 LP |
40 | static const char* const dhcp_lease_server_type_table[_SD_DHCP_LEASE_SERVER_TYPE_MAX] = { |
41 | [SD_DHCP_LEASE_DNS] = "DNS servers", | |
42 | [SD_DHCP_LEASE_NTP] = "NTP servers", | |
43 | [SD_DHCP_LEASE_SIP] = "SIP servers", | |
44 | [SD_DHCP_LEASE_POP3] = "POP3 servers", | |
45 | [SD_DHCP_LEASE_SMTP] = "SMTP servers", | |
46 | [SD_DHCP_LEASE_LPR] = "LPR servers", | |
ddc026f3 ZJS |
47 | }; |
48 | ||
2d792895 YW |
49 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(address_family, AddressFamily, ADDRESS_FAMILY_YES); |
50 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(link_local_address_family, AddressFamily, ADDRESS_FAMILY_YES); | |
f6c6ff97 | 51 | DEFINE_STRING_TABLE_LOOKUP(routing_policy_rule_address_family, AddressFamily); |
051e77ca | 52 | DEFINE_STRING_TABLE_LOOKUP(duplicate_address_detection_address_family, AddressFamily); |
2d792895 YW |
53 | DEFINE_CONFIG_PARSE_ENUM(config_parse_link_local_address_family, link_local_address_family, |
54 | AddressFamily, "Failed to parse option"); | |
ddb82ec2 | 55 | DEFINE_STRING_TABLE_LOOKUP(dhcp_lease_server_type, sd_dhcp_lease_server_type); |
fc2f9534 | 56 | |
2d792895 | 57 | int config_parse_address_family_with_kernel( |
fc2f9534 LP |
58 | const char* unit, |
59 | const char *filename, | |
60 | unsigned line, | |
61 | const char *section, | |
62 | unsigned section_line, | |
63 | const char *lvalue, | |
64 | int ltype, | |
65 | const char *rvalue, | |
66 | void *data, | |
67 | void *userdata) { | |
68 | ||
2d792895 | 69 | AddressFamily *fwd = data, s; |
fc2f9534 LP |
70 | |
71 | assert(filename); | |
72 | assert(lvalue); | |
73 | assert(rvalue); | |
74 | assert(data); | |
75 | ||
765afd5c LP |
76 | /* This function is mostly obsolete now. It simply redirects |
77 | * "kernel" to "no". In older networkd versions we used to | |
5238e957 | 78 | * distinguish IPForward=off from IPForward=kernel, where the |
765afd5c LP |
79 | * former would explicitly turn off forwarding while the |
80 | * latter would simply not touch the setting. But that logic | |
81 | * is gone, hence silently accept the old setting, but turn it | |
82 | * to "no". */ | |
83 | ||
2d792895 | 84 | s = address_family_from_string(rvalue); |
fc2f9534 LP |
85 | if (s < 0) { |
86 | if (streq(rvalue, "kernel")) | |
765afd5c | 87 | s = ADDRESS_FAMILY_NO; |
fc2f9534 | 88 | else { |
d96edb2c | 89 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse IPForward= option, ignoring: %s", rvalue); |
fc2f9534 LP |
90 | return 0; |
91 | } | |
92 | } | |
93 | ||
94 | *fwd = s; | |
95 | ||
96 | return 0; | |
97 | } | |
f02ba163 DD |
98 | |
99 | /* Router lifetime can be set with netlink interface since kernel >= 4.5 | |
5238e957 | 100 | * so for the supported kernel we don't need to expire routes in userspace */ |
f02ba163 DD |
101 | int kernel_route_expiration_supported(void) { |
102 | static int cached = -1; | |
103 | int r; | |
104 | ||
105 | if (cached < 0) { | |
106 | Condition c = { | |
107 | .type = CONDITION_KERNEL_VERSION, | |
108 | .parameter = (char *) ">= 4.5" | |
109 | }; | |
a0b191b7 | 110 | r = condition_test(&c, NULL); |
f02ba163 DD |
111 | if (r < 0) |
112 | return r; | |
113 | ||
114 | cached = r; | |
115 | } | |
116 | return cached; | |
117 | } | |
48315d3d YW |
118 | |
119 | static void network_config_hash_func(const NetworkConfigSection *c, struct siphash *state) { | |
f281fc1e | 120 | siphash24_compress_string(c->filename, state); |
48315d3d YW |
121 | siphash24_compress(&c->line, sizeof(c->line), state); |
122 | } | |
123 | ||
124 | static int network_config_compare_func(const NetworkConfigSection *x, const NetworkConfigSection *y) { | |
125 | int r; | |
126 | ||
127 | r = strcmp(x->filename, y->filename); | |
128 | if (r != 0) | |
129 | return r; | |
130 | ||
131 | return CMP(x->line, y->line); | |
132 | } | |
133 | ||
134 | DEFINE_HASH_OPS(network_config_hash_ops, NetworkConfigSection, network_config_hash_func, network_config_compare_func); | |
135 | ||
136 | int network_config_section_new(const char *filename, unsigned line, NetworkConfigSection **s) { | |
137 | NetworkConfigSection *cs; | |
138 | ||
139 | cs = malloc0(offsetof(NetworkConfigSection, filename) + strlen(filename) + 1); | |
140 | if (!cs) | |
141 | return -ENOMEM; | |
142 | ||
143 | strcpy(cs->filename, filename); | |
144 | cs->line = line; | |
145 | ||
146 | *s = TAKE_PTR(cs); | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
151 | void network_config_section_free(NetworkConfigSection *cs) { | |
152 | free(cs); | |
153 | } | |
833f3663 YW |
154 | |
155 | unsigned hashmap_find_free_section_line(Hashmap *hashmap) { | |
156 | NetworkConfigSection *cs; | |
157 | unsigned n = 0; | |
158 | void *entry; | |
159 | ||
160 | HASHMAP_FOREACH_KEY(entry, cs, hashmap) | |
161 | if (n < cs->line) | |
162 | n = cs->line; | |
163 | ||
164 | return n + 1; | |
165 | } |