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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" |
89fa9a6b | 5 | #include "escape.h" |
3ae6b3bf | 6 | #include "logarithm.h" |
fd221544 | 7 | #include "networkd-link.h" |
fc2f9534 | 8 | #include "networkd-util.h" |
6bedfcbb | 9 | #include "parse-util.h" |
8b43440b | 10 | #include "string-table.h" |
07630cea | 11 | #include "string-util.h" |
89fa9a6b | 12 | #include "web-util.h" |
fc2f9534 | 13 | |
a093533c YW |
14 | /* This is used in log messages, and never used in parsing settings. So, upper cases are OK. */ |
15 | static const char * const network_config_source_table[_NETWORK_CONFIG_SOURCE_MAX] = { | |
16 | [NETWORK_CONFIG_SOURCE_FOREIGN] = "foreign", | |
17 | [NETWORK_CONFIG_SOURCE_STATIC] = "static", | |
18 | [NETWORK_CONFIG_SOURCE_IPV4LL] = "IPv4LL", | |
19 | [NETWORK_CONFIG_SOURCE_DHCP4] = "DHCPv4", | |
20 | [NETWORK_CONFIG_SOURCE_DHCP6] = "DHCPv6", | |
a27588d4 | 21 | [NETWORK_CONFIG_SOURCE_DHCP_PD] = "DHCP-PD", |
a093533c | 22 | [NETWORK_CONFIG_SOURCE_NDISC] = "NDisc", |
2e62139a | 23 | [NETWORK_CONFIG_SOURCE_RUNTIME] = "runtime", |
a093533c YW |
24 | }; |
25 | ||
26 | DEFINE_STRING_TABLE_LOOKUP_TO_STRING(network_config_source, NetworkConfigSource); | |
27 | ||
28 | int network_config_state_to_string_alloc(NetworkConfigState s, char **ret) { | |
67b65e11 | 29 | static const char* states[] = { |
67b65e11 ZJS |
30 | [LOG2U(NETWORK_CONFIG_STATE_REQUESTING)] = "requesting", |
31 | [LOG2U(NETWORK_CONFIG_STATE_CONFIGURING)] = "configuring", | |
32 | [LOG2U(NETWORK_CONFIG_STATE_CONFIGURED)] = "configured", | |
33 | [LOG2U(NETWORK_CONFIG_STATE_MARKED)] = "marked", | |
34 | [LOG2U(NETWORK_CONFIG_STATE_REMOVING)] = "removing", | |
a093533c YW |
35 | }; |
36 | _cleanup_free_ char *buf = NULL; | |
37 | ||
38 | assert(ret); | |
39 | ||
67b65e11 ZJS |
40 | for (size_t i = 0; i < ELEMENTSOF(states); i++) |
41 | if (FLAGS_SET(s, 1 << i)) { | |
42 | assert(states[i]); | |
43 | ||
44 | if (!strextend_with_separator(&buf, ",", states[i])) | |
45 | return -ENOMEM; | |
46 | } | |
a093533c YW |
47 | |
48 | *ret = TAKE_PTR(buf); | |
49 | return 0; | |
50 | } | |
51 | ||
52 | static const char * const address_family_table[_ADDRESS_FAMILY_MAX] = { | |
135c4aad LP |
53 | [ADDRESS_FAMILY_NO] = "no", |
54 | [ADDRESS_FAMILY_YES] = "yes", | |
55 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
56 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
e800fd24 YW |
57 | }; |
58 | ||
a093533c | 59 | static const char * const routing_policy_rule_address_family_table[_ADDRESS_FAMILY_MAX] = { |
135c4aad LP |
60 | [ADDRESS_FAMILY_YES] = "both", |
61 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
62 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
f6c6ff97 YW |
63 | }; |
64 | ||
a093533c | 65 | static const char * const nexthop_address_family_table[_ADDRESS_FAMILY_MAX] = { |
135c4aad LP |
66 | [ADDRESS_FAMILY_IPV4] = "ipv4", |
67 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
f1923efc YW |
68 | }; |
69 | ||
a093533c | 70 | static const char * const duplicate_address_detection_address_family_table[_ADDRESS_FAMILY_MAX] = { |
135c4aad LP |
71 | [ADDRESS_FAMILY_NO] = "none", |
72 | [ADDRESS_FAMILY_YES] = "both", | |
73 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
74 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
051e77ca SS |
75 | }; |
76 | ||
a093533c | 77 | static const char * const dhcp_deprecated_address_family_table[_ADDRESS_FAMILY_MAX] = { |
135c4aad LP |
78 | [ADDRESS_FAMILY_NO] = "none", |
79 | [ADDRESS_FAMILY_YES] = "both", | |
80 | [ADDRESS_FAMILY_IPV4] = "v4", | |
81 | [ADDRESS_FAMILY_IPV6] = "v6", | |
bde8467a YW |
82 | }; |
83 | ||
a093533c | 84 | static const char * const ip_masquerade_address_family_table[_ADDRESS_FAMILY_MAX] = { |
4c72d851 YW |
85 | [ADDRESS_FAMILY_NO] = "no", |
86 | [ADDRESS_FAMILY_YES] = "both", | |
87 | [ADDRESS_FAMILY_IPV4] = "ipv4", | |
88 | [ADDRESS_FAMILY_IPV6] = "ipv6", | |
89 | }; | |
90 | ||
a093533c | 91 | static const char * const dhcp_lease_server_type_table[_SD_DHCP_LEASE_SERVER_TYPE_MAX] = { |
ddb82ec2 LP |
92 | [SD_DHCP_LEASE_DNS] = "DNS servers", |
93 | [SD_DHCP_LEASE_NTP] = "NTP servers", | |
94 | [SD_DHCP_LEASE_SIP] = "SIP servers", | |
95 | [SD_DHCP_LEASE_POP3] = "POP3 servers", | |
96 | [SD_DHCP_LEASE_SMTP] = "SMTP servers", | |
97 | [SD_DHCP_LEASE_LPR] = "LPR servers", | |
ddc026f3 ZJS |
98 | }; |
99 | ||
2d792895 | 100 | DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(address_family, AddressFamily, ADDRESS_FAMILY_YES); |
3ca1fab7 ZJS |
101 | |
102 | AddressFamily link_local_address_family_from_string(const char *s) { | |
103 | if (streq_ptr(s, "fallback")) /* compat name */ | |
104 | return ADDRESS_FAMILY_YES; | |
105 | if (streq_ptr(s, "fallback-ipv4")) /* compat name */ | |
106 | return ADDRESS_FAMILY_IPV4; | |
107 | return address_family_from_string(s); | |
108 | } | |
109 | ||
f6c6ff97 | 110 | DEFINE_STRING_TABLE_LOOKUP(routing_policy_rule_address_family, AddressFamily); |
f1923efc | 111 | DEFINE_STRING_TABLE_LOOKUP(nexthop_address_family, AddressFamily); |
051e77ca | 112 | DEFINE_STRING_TABLE_LOOKUP(duplicate_address_detection_address_family, AddressFamily); |
2d792895 YW |
113 | DEFINE_CONFIG_PARSE_ENUM(config_parse_link_local_address_family, link_local_address_family, |
114 | AddressFamily, "Failed to parse option"); | |
bde8467a | 115 | DEFINE_STRING_TABLE_LOOKUP_FROM_STRING(dhcp_deprecated_address_family, AddressFamily); |
4c72d851 | 116 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_FROM_STRING(ip_masquerade_address_family, AddressFamily); |
2324fd3a | 117 | DEFINE_STRING_TABLE_LOOKUP(dhcp_lease_server_type, sd_dhcp_lease_server_type_t); |
fc2f9534 | 118 | |
2d792895 | 119 | int config_parse_address_family_with_kernel( |
fc2f9534 LP |
120 | const char* unit, |
121 | const char *filename, | |
122 | unsigned line, | |
123 | const char *section, | |
124 | unsigned section_line, | |
125 | const char *lvalue, | |
126 | int ltype, | |
127 | const char *rvalue, | |
128 | void *data, | |
129 | void *userdata) { | |
130 | ||
2d792895 | 131 | AddressFamily *fwd = data, s; |
fc2f9534 LP |
132 | |
133 | assert(filename); | |
134 | assert(lvalue); | |
135 | assert(rvalue); | |
136 | assert(data); | |
137 | ||
765afd5c LP |
138 | /* This function is mostly obsolete now. It simply redirects |
139 | * "kernel" to "no". In older networkd versions we used to | |
5238e957 | 140 | * distinguish IPForward=off from IPForward=kernel, where the |
765afd5c LP |
141 | * former would explicitly turn off forwarding while the |
142 | * latter would simply not touch the setting. But that logic | |
143 | * is gone, hence silently accept the old setting, but turn it | |
144 | * to "no". */ | |
145 | ||
2d792895 | 146 | s = address_family_from_string(rvalue); |
fc2f9534 LP |
147 | if (s < 0) { |
148 | if (streq(rvalue, "kernel")) | |
765afd5c | 149 | s = ADDRESS_FAMILY_NO; |
fc2f9534 | 150 | else { |
d96edb2c | 151 | log_syntax(unit, LOG_WARNING, filename, line, 0, "Failed to parse IPForward= option, ignoring: %s", rvalue); |
fc2f9534 LP |
152 | return 0; |
153 | } | |
154 | } | |
155 | ||
156 | *fwd = s; | |
157 | ||
158 | return 0; | |
159 | } | |
f02ba163 | 160 | |
4c72d851 YW |
161 | int config_parse_ip_masquerade( |
162 | const char *unit, | |
163 | const char *filename, | |
164 | unsigned line, | |
165 | const char *section, | |
166 | unsigned section_line, | |
167 | const char *lvalue, | |
168 | int ltype, | |
169 | const char *rvalue, | |
170 | void *data, | |
171 | void *userdata) { | |
172 | ||
173 | AddressFamily a, *ret = data; | |
174 | int r; | |
175 | ||
176 | if (isempty(rvalue)) { | |
177 | *ret = ADDRESS_FAMILY_NO; | |
178 | return 0; | |
179 | } | |
180 | ||
181 | r = parse_boolean(rvalue); | |
182 | if (r >= 0) { | |
183 | if (r) | |
184 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
185 | "IPMasquerade=%s is deprecated, and it is handled as \"ipv4\" instead of \"both\". " | |
186 | "Please use \"ipv4\" or \"both\".", | |
187 | rvalue); | |
188 | ||
189 | *ret = r ? ADDRESS_FAMILY_IPV4 : ADDRESS_FAMILY_NO; | |
190 | return 0; | |
191 | } | |
192 | ||
193 | a = ip_masquerade_address_family_from_string(rvalue); | |
194 | if (a < 0) { | |
195 | log_syntax(unit, LOG_WARNING, filename, line, a, | |
196 | "Failed to parse IPMasquerade= setting, ignoring assignment: %s", rvalue); | |
197 | return 0; | |
198 | } | |
199 | ||
200 | *ret = a; | |
201 | return 0; | |
202 | } | |
203 | ||
89fa9a6b ZJS |
204 | int config_parse_mud_url( |
205 | const char *unit, | |
206 | const char *filename, | |
207 | unsigned line, | |
208 | const char *section, | |
209 | unsigned section_line, | |
210 | const char *lvalue, | |
211 | int ltype, | |
212 | const char *rvalue, | |
77976a68 YW |
213 | void *data, |
214 | void *userdata) { | |
215 | ||
216 | _cleanup_free_ char *unescaped = NULL; | |
99534007 | 217 | char **url = ASSERT_PTR(data); |
77976a68 | 218 | ssize_t l; |
89fa9a6b ZJS |
219 | |
220 | assert(filename); | |
221 | assert(lvalue); | |
222 | assert(rvalue); | |
89fa9a6b | 223 | |
77976a68 YW |
224 | if (isempty(rvalue)) { |
225 | *url = mfree(*url); | |
226 | return 0; | |
227 | } | |
89fa9a6b ZJS |
228 | |
229 | l = cunescape(rvalue, 0, &unescaped); | |
230 | if (l < 0) { | |
231 | log_syntax(unit, LOG_WARNING, filename, line, l, | |
232 | "Failed to unescape MUD URL, ignoring: %s", rvalue); | |
233 | return 0; | |
234 | } | |
235 | ||
236 | if (l > UINT8_MAX || !http_url_is_valid(unescaped)) { | |
237 | log_syntax(unit, LOG_WARNING, filename, line, 0, | |
238 | "Invalid MUD URL, ignoring: %s", rvalue); | |
239 | return 0; | |
240 | } | |
241 | ||
77976a68 | 242 | return free_and_replace(*url, unescaped); |
89fa9a6b ZJS |
243 | } |
244 | ||
fd221544 YW |
245 | int log_link_message_full_errno(Link *link, sd_netlink_message *m, int level, int err, const char *msg) { |
246 | const char *err_msg = NULL; | |
247 | ||
248 | /* link may be NULL. */ | |
249 | ||
250 | (void) sd_netlink_message_read_string(m, NLMSGERR_ATTR_MSG, &err_msg); | |
251 | return log_link_full_errno(link, level, err, | |
252 | "%s: %s%s%s%m", | |
253 | msg, | |
254 | strempty(err_msg), | |
255 | err_msg && !endswith(err_msg, ".") ? "." : "", | |
256 | err_msg ? " " : ""); | |
257 | } |