Bug Summary

File:build-scan/../src/libsystemd-network/network-internal.c
Warning:line 256, column 17
Potential leak of memory pointed to by 'n'

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name network-internal.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=all -relaxed-aliasing -menable-no-infs -menable-no-nans -menable-unsafe-fp-math -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/12.0.0 -include config.h -I src/libsystemd-network/libsystemd-network.a.p -I src/libsystemd-network -I ../src/libsystemd-network -I src/basic -I ../src/basic -I src/shared -I ../src/shared -I src/systemd -I ../src/systemd -I src/journal -I ../src/journal -I src/journal-remote -I ../src/journal-remote -I src/nspawn -I ../src/nspawn -I src/resolve -I ../src/resolve -I src/timesync -I ../src/timesync -I ../src/time-wait-sync -I src/login -I ../src/login -I src/udev -I ../src/udev -I src/libudev -I ../src/libudev -I src/core -I ../src/core -I ../src/libsystemd/sd-bus -I ../src/libsystemd/sd-device -I ../src/libsystemd/sd-hwdb -I ../src/libsystemd/sd-id128 -I ../src/libsystemd/sd-netlink -I ../src/libsystemd/sd-network -I . -I .. -D _FILE_OFFSET_BITS=64 -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/12.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -Wwrite-strings -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result -Wno-format-signedness -Wno-error=nonnull -std=gnu99 -fconst-strings -fdebug-compilation-dir /home/mrc0mmand/repos/@redhat-plumbers/systemd-rhel8/build-scan -ferror-limit 19 -fvisibility hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics -analyzer-output=html -faddrsig -o /tmp/scan-build-2021-07-16-221226-1465241-1 -x c ../src/libsystemd-network/network-internal.c
1/* SPDX-License-Identifier: LGPL-2.1+ */
2
3#include <arpa/inet.h>
4#include <linux1/if.h>
5#include <netinet/ether.h>
6
7#include "sd-id128.h"
8#include "sd-ndisc.h"
9
10#include "alloc-util.h"
11#include "condition.h"
12#include "conf-parser.h"
13#include "dhcp-lease-internal.h"
14#include "ether-addr-util.h"
15#include "hexdecoct.h"
16#include "log.h"
17#include "network-internal.h"
18#include "parse-util.h"
19#include "siphash24.h"
20#include "socket-util.h"
21#include "string-util.h"
22#include "strv.h"
23#include "utf8.h"
24#include "util.h"
25
26const char *net_get_name(struct udev_device *device) {
27 const char *name, *field;
28
29 assert(device)do { if ((__builtin_expect(!!(!(device)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("device"), "../src/libsystemd-network/network-internal.c"
, 29, __PRETTY_FUNCTION__); } while (0);
30
31 /* fetch some persistent data unique (on this machine) to this device */
32 FOREACH_STRING(field, "ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH", "ID_NET_NAME_MAC")for (char **_l = ({ char **_ll = ((char**) ((const char*[]) {
"ID_NET_NAME_ONBOARD", "ID_NET_NAME_SLOT", "ID_NET_NAME_PATH"
, "ID_NET_NAME_MAC", ((void*)0) })); field = _ll ? _ll[0] : (
(void*)0); _ll; }); _l && *_l; field = ({ _l ++; _l[0
]; })) {
33 name = udev_device_get_property_value(device, field);
34 if (name)
35 return name;
36 }
37
38 return NULL((void*)0);
39}
40
41#define HASH_KEY((const sd_id128_t) { .bytes = { 0xd3, 0x1e, 0x48, 0xfa, 0x90
, 0xfe, 0x4b, 0x4c, 0x9d, 0xaf, 0xd5, 0xd7, 0xa1, 0xb1, 0x2e,
0x8a }}) SD_ID128_MAKE(d3,1e,48,fa,90,fe,4b,4c,9d,af,d5,d7,a1,b1,2e,8a)((const sd_id128_t) { .bytes = { 0xd3, 0x1e, 0x48, 0xfa, 0x90
, 0xfe, 0x4b, 0x4c, 0x9d, 0xaf, 0xd5, 0xd7, 0xa1, 0xb1, 0x2e,
0x8a }})
42
43int net_get_unique_predictable_data(struct udev_device *device, uint64_t *result) {
44 size_t l, sz = 0;
45 const char *name = NULL((void*)0);
46 int r;
47 uint8_t *v;
48
49 assert(device)do { if ((__builtin_expect(!!(!(device)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("device"), "../src/libsystemd-network/network-internal.c"
, 49, __PRETTY_FUNCTION__); } while (0);
50
51 name = net_get_name(device);
52 if (!name)
53 return -ENOENT2;
54
55 l = strlen(name);
56 sz = sizeof(sd_id128_t) + l;
57 v = alloca(sz)__builtin_alloca (sz);
58
59 /* fetch some persistent data unique to this machine */
60 r = sd_id128_get_machine((sd_id128_t*) v);
61 if (r < 0)
62 return r;
63 memcpy(v + sizeof(sd_id128_t), name, l);
64
65 /* Let's hash the machine ID plus the device name. We
66 * use a fixed, but originally randomly created hash
67 * key here. */
68 *result = htole64(siphash24(v, sz, HASH_KEY((const sd_id128_t) { .bytes = { 0xd3, 0x1e, 0x48, 0xfa, 0x90
, 0xfe, 0x4b, 0x4c, 0x9d, 0xaf, 0xd5, 0xd7, 0xa1, 0xb1, 0x2e,
0x8a }}).bytes));
69
70 return 0;
71}
72
73static bool_Bool net_condition_test_strv(char * const *raw_patterns,
74 const char *string) {
75 if (strv_isempty(raw_patterns))
76 return true1;
77
78 /* If the patterns begin with "!", edit it out and negate the test. */
79 if (raw_patterns[0][0] == '!') {
80 char **patterns;
81 size_t i, length;
82
83 length = strv_length(raw_patterns) + 1; /* Include the NULL. */
84 patterns = newa(char*, length)({ do { if ((__builtin_expect(!!(!(!size_multiply_overflow(sizeof
(char*), length))),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("!size_multiply_overflow(sizeof(char*), length)"), "../src/libsystemd-network/network-internal.c"
, 84, __PRETTY_FUNCTION__); } while (0); (char**) __builtin_alloca
(sizeof(char*)*(length)); });
85 patterns[0] = raw_patterns[0] + 1; /* Skip the "!". */
86 for (i = 1; i < length; i++)
87 patterns[i] = raw_patterns[i];
88
89 return !string || !strv_fnmatch(patterns, string, 0);
90 }
91
92 return string && strv_fnmatch(raw_patterns, string, 0);
93}
94
95bool_Bool net_match_config(Set *match_mac,
96 char * const *match_paths,
97 char * const *match_drivers,
98 char * const *match_types,
99 char * const *match_names,
100 Condition *match_host,
101 Condition *match_virt,
102 Condition *match_kernel_cmdline,
103 Condition *match_kernel_version,
104 Condition *match_arch,
105 const struct ether_addr *dev_mac,
106 const char *dev_path,
107 const char *dev_parent_driver,
108 const char *dev_driver,
109 const char *dev_type,
110 const char *dev_name) {
111
112 if (match_host && condition_test(match_host) <= 0)
113 return false0;
114
115 if (match_virt && condition_test(match_virt) <= 0)
116 return false0;
117
118 if (match_kernel_cmdline && condition_test(match_kernel_cmdline) <= 0)
119 return false0;
120
121 if (match_kernel_version && condition_test(match_kernel_version) <= 0)
122 return false0;
123
124 if (match_arch && condition_test(match_arch) <= 0)
125 return false0;
126
127 if (match_mac && dev_mac && !set_contains(match_mac, dev_mac))
128 return false0;
129
130 if (!net_condition_test_strv(match_paths, dev_path))
131 return false0;
132
133 if (!net_condition_test_strv(match_drivers, dev_driver))
134 return false0;
135
136 if (!net_condition_test_strv(match_types, dev_type))
137 return false0;
138
139 if (!net_condition_test_strv(match_names, dev_name))
140 return false0;
141
142 return true1;
143}
144
145int config_parse_net_condition(const char *unit,
146 const char *filename,
147 unsigned line,
148 const char *section,
149 unsigned section_line,
150 const char *lvalue,
151 int ltype,
152 const char *rvalue,
153 void *data,
154 void *userdata) {
155
156 ConditionType cond = ltype;
157 Condition **ret = data;
158 bool_Bool negate;
159 Condition *c;
160 _cleanup_free___attribute__((cleanup(freep))) char *s = NULL((void*)0);
161
162 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 162, __PRETTY_FUNCTION__); } while (0);
163 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 163, __PRETTY_FUNCTION__); } while (0);
164 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 164, __PRETTY_FUNCTION__); } while (0);
165 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 165, __PRETTY_FUNCTION__); } while (0);
166
167 negate = rvalue[0] == '!';
168 if (negate)
169 rvalue++;
170
171 s = strdup(rvalue);
172 if (!s)
173 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 173, __func__);
174
175 c = condition_new(cond, s, false0, negate);
176 if (!c)
177 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 177, __func__);
178
179 if (*ret)
180 condition_free(*ret);
181
182 *ret = c;
183 return 0;
184}
185
186int config_parse_ifnames(
187 const char *unit,
188 const char *filename,
189 unsigned line,
190 const char *section,
191 unsigned section_line,
192 const char *lvalue,
193 int ltype,
194 const char *rvalue,
195 void *data,
196 void *userdata) {
197
198 char ***sv = data;
199 int r;
200
201 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 201, __PRETTY_FUNCTION__); } while (0);
202 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 202, __PRETTY_FUNCTION__); } while (0);
203 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 203, __PRETTY_FUNCTION__); } while (0);
204 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 204, __PRETTY_FUNCTION__); } while (0);
205
206 for (;;) {
207 _cleanup_free___attribute__((cleanup(freep))) char *word = NULL((void*)0);
208
209 r = extract_first_word(&rvalue, &word, NULL((void*)0), 0);
210 if (r < 0) {
211 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse interface name list: %s", rvalue)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 211, __func__, "Failed to parse interface name list: %s", rvalue
) : -abs(_e); });
212 return 0;
213 }
214 if (r == 0)
215 break;
216
217 if (!ifname_valid(word)) {
218 log_syntax(unit, LOG_ERR, filename, line, 0, "Interface name is not valid or too long, ignoring assignment: %s", rvalue)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 218, __func__, "Interface name is not valid or too long, ignoring assignment: %s"
, rvalue) : -abs(_e); });
219 return 0;
220 }
221
222 r = strv_push(sv, word);
223 if (r < 0)
224 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 224, __func__);
225
226 word = NULL((void*)0);
227 }
228
229 return 0;
230}
231
232int config_parse_ifalias(const char *unit,
233 const char *filename,
234 unsigned line,
235 const char *section,
236 unsigned section_line,
237 const char *lvalue,
238 int ltype,
239 const char *rvalue,
240 void *data,
241 void *userdata) {
242
243 char **s = data;
244 _cleanup_free___attribute__((cleanup(freep))) char *n = NULL((void*)0);
245
246 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 246, __PRETTY_FUNCTION__); } while (0);
1
Assuming 'filename' is non-null
→
2
←
Taking false branch
→
3
←
Loop condition is false. Exiting loop
→
247 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 247, __PRETTY_FUNCTION__); } while (0);
4
←
Assuming 'lvalue' is non-null
→
5
←
Taking false branch
→
6
←
Loop condition is false. Exiting loop
→
248 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 248, __PRETTY_FUNCTION__); } while (0);
7
←
Assuming 'rvalue' is non-null
→
8
←
Taking false branch
→
9
←
Loop condition is false. Exiting loop
→
249 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 249, __PRETTY_FUNCTION__); } while (0);
10
←
Assuming 'data' is non-null
→
11
←
Taking false branch
→
12
←
Loop condition is false. Exiting loop
→
250
251 n = strdup(rvalue);
13
←
Memory is allocated
→
252 if (!n)
14
←
Assuming 'n' is non-null
→
15
←
Taking false branch
→
253 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 253, __func__);
254
255 if (!ascii_is_valid(n) || strlen(n) >= IFALIASZ256) {
16
←
Assuming the condition is true
→
256 log_syntax(unit, LOG_ERR, filename, line, 0, "Interface alias is not ASCII clean or is too long, ignoring assignment: %s", rvalue)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 256, __func__, "Interface alias is not ASCII clean or is too long, ignoring assignment: %s"
, rvalue) : -abs(_e); });
17
←
Potential leak of memory pointed to by 'n'
257 return 0;
258 }
259
260 free(*s);
261 if (*n)
262 *s = TAKE_PTR(n)({ typeof(n) _ptr_ = (n); (n) = ((void*)0); _ptr_; });
263 else
264 *s = NULL((void*)0);
265
266 return 0;
267}
268
269int config_parse_hwaddr(const char *unit,
270 const char *filename,
271 unsigned line,
272 const char *section,
273 unsigned section_line,
274 const char *lvalue,
275 int ltype,
276 const char *rvalue,
277 void *data,
278 void *userdata) {
279
280 _cleanup_free___attribute__((cleanup(freep))) struct ether_addr *n = NULL((void*)0);
281 struct ether_addr **hwaddr = data;
282 int r;
283
284 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 284, __PRETTY_FUNCTION__); } while (0);
285 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 285, __PRETTY_FUNCTION__); } while (0);
286 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 286, __PRETTY_FUNCTION__); } while (0);
287 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 287, __PRETTY_FUNCTION__); } while (0);
288
289 n = new0(struct ether_addr, 1)((struct ether_addr*) calloc((1), sizeof(struct ether_addr)));
290 if (!n)
291 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 291, __func__);
292
293 r = ether_addr_from_string(rvalue, n);
294 if (r < 0) {
295 log_syntax(unit, LOG_ERR, filename, line, r, "Not a valid MAC address, ignoring assignment: %s", rvalue)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 295, __func__, "Not a valid MAC address, ignoring assignment: %s"
, rvalue) : -abs(_e); });
296 return 0;
297 }
298
299 *hwaddr = TAKE_PTR(n)({ typeof(n) _ptr_ = (n); (n) = ((void*)0); _ptr_; });
300
301 return 0;
302}
303
304int config_parse_hwaddrs(const char *unit,
305 const char *filename,
306 unsigned line,
307 const char *section,
308 unsigned section_line,
309 const char *lvalue,
310 int ltype,
311 const char *rvalue,
312 void *data,
313 void *userdata) {
314
315 _cleanup_set_free_free___attribute__((cleanup(set_free_freep))) Set *s = NULL((void*)0);
316 const char *p = rvalue;
317 Set **hwaddrs = data;
318 int r;
319
320 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 320, __PRETTY_FUNCTION__); } while (0);
321 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 321, __PRETTY_FUNCTION__); } while (0);
322 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 322, __PRETTY_FUNCTION__); } while (0);
323 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 323, __PRETTY_FUNCTION__); } while (0);
324
325 if (isempty(rvalue)) {
326 /* Empty assignment resets the list */
327 *hwaddrs = set_free_free(*hwaddrs);
328 return 0;
329 }
330
331 s = set_new(&ether_addr_hash_ops)internal_set_new(&ether_addr_hash_ops );
332 if (!s)
333 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 333, __func__);
334
335 for (;;) {
336 _cleanup_free___attribute__((cleanup(freep))) char *word = NULL((void*)0);
337 _cleanup_free___attribute__((cleanup(freep))) struct ether_addr *n = NULL((void*)0);
338
339 r = extract_first_word(&p, &word, NULL((void*)0), 0);
340 if (r == 0)
341 break;
342 if (r == -ENOMEM12)
343 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 343, __func__);
344 if (r < 0) {
345 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue)({ int _level = (4), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 345, __func__, "Invalid syntax, ignoring: %s", rvalue) : -abs
(_e); });
346 return 0;
347 }
348
349 n = new(struct ether_addr, 1)((struct ether_addr*) malloc_multiply(sizeof(struct ether_addr
), (1)));
350 if (!n)
351 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 351, __func__);
352
353 r = ether_addr_from_string(word, n);
354 if (r < 0) {
355 log_syntax(unit, LOG_ERR, filename, line, 0, "Not a valid MAC address, ignoring: %s", word)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 355, __func__, "Not a valid MAC address, ignoring: %s", word
) : -abs(_e); });
356 continue;
357 }
358
359 r = set_put(s, n);
360 if (r < 0)
361 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 361, __func__);
362 if (r > 0)
363 n = NULL((void*)0); /* avoid cleanup */
364 }
365
366 r = set_ensure_allocated(hwaddrs, &ether_addr_hash_ops)internal_set_ensure_allocated(hwaddrs, &ether_addr_hash_ops
);
367 if (r < 0)
368 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 368, __func__);
369
370 r = set_move(*hwaddrs, s);
371 if (r < 0)
372 return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/libsystemd-network/network-internal.c"
, 372, __func__);
373
374 return 0;
375}
376
377int config_parse_iaid(const char *unit,
378 const char *filename,
379 unsigned line,
380 const char *section,
381 unsigned section_line,
382 const char *lvalue,
383 int ltype,
384 const char *rvalue,
385 void *data,
386 void *userdata) {
387 uint32_t iaid;
388 int r;
389
390 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 390, __PRETTY_FUNCTION__); } while (0);
391 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 391, __PRETTY_FUNCTION__); } while (0);
392 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 392, __PRETTY_FUNCTION__); } while (0);
393 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 393, __PRETTY_FUNCTION__); } while (0);
394
395 r = safe_atou32(rvalue, &iaid);
396 if (r < 0) {
397 log_syntax(unit, LOG_ERR, filename, line, r,({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 398, __func__, "Unable to read IAID, ignoring assignment: %s"
, rvalue) : -abs(_e); })
398 "Unable to read IAID, ignoring assignment: %s", rvalue)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 398, __func__, "Unable to read IAID, ignoring assignment: %s"
, rvalue) : -abs(_e); });
399 return 0;
400 }
401
402 *((uint32_t *)data) = iaid;
403
404 return 0;
405}
406
407int config_parse_bridge_port_priority(
408 const char *unit,
409 const char *filename,
410 unsigned line,
411 const char *section,
412 unsigned section_line,
413 const char *lvalue,
414 int ltype,
415 const char *rvalue,
416 void *data,
417 void *userdata) {
418
419 uint16_t i;
420 int r;
421
422 assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/libsystemd-network/network-internal.c"
, 422, __PRETTY_FUNCTION__); } while (0);
423 assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/libsystemd-network/network-internal.c"
, 423, __PRETTY_FUNCTION__); } while (0);
424 assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/libsystemd-network/network-internal.c"
, 424, __PRETTY_FUNCTION__); } while (0);
425 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 425, __PRETTY_FUNCTION__); } while (0);
426
427 r = safe_atou16(rvalue, &i);
428 if (r < 0) {
429 log_syntax(unit, LOG_ERR, filename, line, r,({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 430, __func__, "Failed to parse bridge port priority, ignoring: %s"
, rvalue) : -abs(_e); })
430 "Failed to parse bridge port priority, ignoring: %s", rvalue)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 430, __func__, "Failed to parse bridge port priority, ignoring: %s"
, rvalue) : -abs(_e); });
431 return 0;
432 }
433
434 if (i > LINK_BRIDGE_PORT_PRIORITY_MAX63) {
435 log_syntax(unit, LOG_ERR, filename, line, r,({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 436, __func__, "Bridge port priority is larger than maximum %u, ignoring: %s"
, 63, rvalue) : -abs(_e); })
436 "Bridge port priority is larger than maximum %u, ignoring: %s", LINK_BRIDGE_PORT_PRIORITY_MAX, rvalue)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/libsystemd-network/network-internal.c"
, 436, __func__, "Bridge port priority is larger than maximum %u, ignoring: %s"
, 63, rvalue) : -abs(_e); });
437 return 0;
438 }
439
440 *((uint16_t *)data) = i;
441
442 return 0;
443}
444
445void serialize_in_addrs(FILE *f, const struct in_addr *addresses, size_t size) {
446 unsigned i;
447
448 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/libsystemd-network/network-internal.c"
, 448, __PRETTY_FUNCTION__); } while (0);
449 assert(addresses)do { if ((__builtin_expect(!!(!(addresses)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("addresses"), "../src/libsystemd-network/network-internal.c"
, 449, __PRETTY_FUNCTION__); } while (0);
450 assert(size)do { if ((__builtin_expect(!!(!(size)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("size"), "../src/libsystemd-network/network-internal.c"
, 450, __PRETTY_FUNCTION__); } while (0);
451
452 for (i = 0; i < size; i++)
453 fprintf(f, "%s%s", inet_ntoa(addresses[i]),
454 (i < (size - 1)) ? " ": "");
455}
456
457int deserialize_in_addrs(struct in_addr **ret, const char *string) {
458 _cleanup_free___attribute__((cleanup(freep))) struct in_addr *addresses = NULL((void*)0);
459 int size = 0;
460
461 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/libsystemd-network/network-internal.c"
, 461, __PRETTY_FUNCTION__); } while (0);
462 assert(string)do { if ((__builtin_expect(!!(!(string)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("string"), "../src/libsystemd-network/network-internal.c"
, 462, __PRETTY_FUNCTION__); } while (0);
463
464 for (;;) {
465 _cleanup_free___attribute__((cleanup(freep))) char *word = NULL((void*)0);
466 struct in_addr *new_addresses;
467 int r;
468
469 r = extract_first_word(&string, &word, NULL((void*)0), 0);
470 if (r < 0)
471 return r;
472 if (r == 0)
473 break;
474
475 new_addresses = reallocarray(addresses, size + 1, sizeof(struct in_addr));
476 if (!new_addresses)
477 return -ENOMEM12;
478 else
479 addresses = new_addresses;
480
481 r = inet_pton(AF_INET2, word, &(addresses[size]));
482 if (r <= 0)
483 continue;
484
485 size++;
486 }
487
488 *ret = TAKE_PTR(addresses)({ typeof(addresses) _ptr_ = (addresses); (addresses) = ((void
*)0); _ptr_; });
489
490 return size;
491}
492
493void serialize_in6_addrs(FILE *f, const struct in6_addr *addresses, size_t size) {
494 unsigned i;
495
496 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/libsystemd-network/network-internal.c"
, 496, __PRETTY_FUNCTION__); } while (0);
497 assert(addresses)do { if ((__builtin_expect(!!(!(addresses)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("addresses"), "../src/libsystemd-network/network-internal.c"
, 497, __PRETTY_FUNCTION__); } while (0);
498 assert(size)do { if ((__builtin_expect(!!(!(size)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("size"), "../src/libsystemd-network/network-internal.c"
, 498, __PRETTY_FUNCTION__); } while (0);
499
500 for (i = 0; i < size; i++) {
501 char buffer[INET6_ADDRSTRLEN46];
502
503 fputs(inet_ntop(AF_INET610, addresses+i, buffer, sizeof(buffer)), f);
504
505 if (i < size - 1)
506 fputc(' ', f);
507 }
508}
509
510int deserialize_in6_addrs(struct in6_addr **ret, const char *string) {
511 _cleanup_free___attribute__((cleanup(freep))) struct in6_addr *addresses = NULL((void*)0);
512 int size = 0;
513
514 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/libsystemd-network/network-internal.c"
, 514, __PRETTY_FUNCTION__); } while (0);
515 assert(string)do { if ((__builtin_expect(!!(!(string)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("string"), "../src/libsystemd-network/network-internal.c"
, 515, __PRETTY_FUNCTION__); } while (0);
516
517 for (;;) {
518 _cleanup_free___attribute__((cleanup(freep))) char *word = NULL((void*)0);
519 struct in6_addr *new_addresses;
520 int r;
521
522 r = extract_first_word(&string, &word, NULL((void*)0), 0);
523 if (r < 0)
524 return r;
525 if (r == 0)
526 break;
527
528 new_addresses = reallocarray(addresses, size + 1, sizeof(struct in6_addr));
529 if (!new_addresses)
530 return -ENOMEM12;
531 else
532 addresses = new_addresses;
533
534 r = inet_pton(AF_INET610, word, &(addresses[size]));
535 if (r <= 0)
536 continue;
537
538 size++;
539 }
540
541 *ret = TAKE_PTR(addresses)({ typeof(addresses) _ptr_ = (addresses); (addresses) = ((void
*)0); _ptr_; });
542
543 return size;
544}
545
546void serialize_dhcp_routes(FILE *f, const char *key, sd_dhcp_route **routes, size_t size) {
547 unsigned i;
548
549 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/libsystemd-network/network-internal.c"
, 549, __PRETTY_FUNCTION__); } while (0);
550 assert(key)do { if ((__builtin_expect(!!(!(key)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("key"), "../src/libsystemd-network/network-internal.c"
, 550, __PRETTY_FUNCTION__); } while (0);
551 assert(routes)do { if ((__builtin_expect(!!(!(routes)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("routes"), "../src/libsystemd-network/network-internal.c"
, 551, __PRETTY_FUNCTION__); } while (0);
552 assert(size)do { if ((__builtin_expect(!!(!(size)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("size"), "../src/libsystemd-network/network-internal.c"
, 552, __PRETTY_FUNCTION__); } while (0);
553
554 fprintf(f, "%s=", key);
555
556 for (i = 0; i < size; i++) {
557 struct in_addr dest, gw;
558 uint8_t length;
559
560 assert_se(sd_dhcp_route_get_destination(routes[i], &dest) >= 0)do { if ((__builtin_expect(!!(!(sd_dhcp_route_get_destination
(routes[i], &dest) >= 0)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("sd_dhcp_route_get_destination(routes[i], &dest) >= 0"
), "../src/libsystemd-network/network-internal.c", 560, __PRETTY_FUNCTION__
); } while (0);
561 assert_se(sd_dhcp_route_get_gateway(routes[i], &gw) >= 0)do { if ((__builtin_expect(!!(!(sd_dhcp_route_get_gateway(routes
[i], &gw) >= 0)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("sd_dhcp_route_get_gateway(routes[i], &gw) >= 0"), "../src/libsystemd-network/network-internal.c"
, 561, __PRETTY_FUNCTION__); } while (0);
562 assert_se(sd_dhcp_route_get_destination_prefix_length(routes[i], &length) >= 0)do { if ((__builtin_expect(!!(!(sd_dhcp_route_get_destination_prefix_length
(routes[i], &length) >= 0)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("sd_dhcp_route_get_destination_prefix_length(routes[i], &length) >= 0"
), "../src/libsystemd-network/network-internal.c", 562, __PRETTY_FUNCTION__
); } while (0);
563
564 fprintf(f, "%s/%" PRIu8"u", inet_ntoa(dest), length);
565 fprintf(f, ",%s%s", inet_ntoa(gw), (i < (size - 1)) ? " ": "");
566 }
567
568 fputs("\n", f);
569}
570
571int deserialize_dhcp_routes(struct sd_dhcp_route **ret, size_t *ret_size, size_t *ret_allocated, const char *string) {
572 _cleanup_free___attribute__((cleanup(freep))) struct sd_dhcp_route *routes = NULL((void*)0);
573 size_t size = 0, allocated = 0;
574
575 assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/libsystemd-network/network-internal.c"
, 575, __PRETTY_FUNCTION__); } while (0);
576 assert(ret_size)do { if ((__builtin_expect(!!(!(ret_size)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret_size"), "../src/libsystemd-network/network-internal.c"
, 576, __PRETTY_FUNCTION__); } while (0);
577 assert(ret_allocated)do { if ((__builtin_expect(!!(!(ret_allocated)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret_allocated"), "../src/libsystemd-network/network-internal.c"
, 577, __PRETTY_FUNCTION__); } while (0);
578 assert(string)do { if ((__builtin_expect(!!(!(string)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("string"), "../src/libsystemd-network/network-internal.c"
, 578, __PRETTY_FUNCTION__); } while (0);
579
580 /* WORD FORMAT: dst_ip/dst_prefixlen,gw_ip */
581 for (;;) {
582 _cleanup_free___attribute__((cleanup(freep))) char *word = NULL((void*)0);
583 char *tok, *tok_end;
584 unsigned n;
585 int r;
586
587 r = extract_first_word(&string, &word, NULL((void*)0), 0);
588 if (r < 0)
589 return r;
590 if (r == 0)
591 break;
592
593 if (!GREEDY_REALLOC(routes, allocated, size + 1)greedy_realloc((void**) &(routes), &(allocated), (size
+ 1), sizeof((routes)[0])))
594 return -ENOMEM12;
595
596 tok = word;
597
598 /* get the subnet */
599 tok_end = strchr(tok, '/');
600 if (!tok_end)
601 continue;
602 *tok_end = '\0';
603
604 r = inet_aton(tok, &routes[size].dst_addr);
605 if (r == 0)
606 continue;
607
608 tok = tok_end + 1;
609
610 /* get the prefixlen */
611 tok_end = strchr(tok, ',');
612 if (!tok_end)
613 continue;
614
615 *tok_end = '\0';
616
617 r = safe_atou(tok, &n);
618 if (r < 0 || n > 32)
619 continue;
620
621 routes[size].dst_prefixlen = (uint8_t) n;
622 tok = tok_end + 1;
623
624 /* get the gateway */
625 r = inet_aton(tok, &routes[size].gw_addr);
626 if (r == 0)
627 continue;
628
629 size++;
630 }
631
632 *ret_size = size;
633 *ret_allocated = allocated;
634 *ret = TAKE_PTR(routes)({ typeof(routes) _ptr_ = (routes); (routes) = ((void*)0); _ptr_
; });
635
636 return 0;
637}
638
639int serialize_dhcp_option(FILE *f, const char *key, const void *data, size_t size) {
640 _cleanup_free___attribute__((cleanup(freep))) char *hex_buf = NULL((void*)0);
641
642 assert(f)do { if ((__builtin_expect(!!(!(f)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("f"), "../src/libsystemd-network/network-internal.c"
, 642, __PRETTY_FUNCTION__); } while (0);
643 assert(key)do { if ((__builtin_expect(!!(!(key)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("key"), "../src/libsystemd-network/network-internal.c"
, 643, __PRETTY_FUNCTION__); } while (0);
644 assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/libsystemd-network/network-internal.c"
, 644, __PRETTY_FUNCTION__); } while (0);
645
646 hex_buf = hexmem(data, size);
647 if (hex_buf == NULL((void*)0))
648 return -ENOMEM12;
649
650 fprintf(f, "%s=%s\n", key, hex_buf);
651
652 return 0;
653}