../src/network/networkd-address.c

Bug Summary

File:	build-scan/../src/network/networkd-address.c
Warning:	line 514, column 33 Potential leak of memory pointed to by 'na'
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 networkd-address.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/network/libnetworkd-core.a.p -I src/network -I ../src/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 src/libsystemd-network -I ../src/libsystemd-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/network/networkd-address.c
1/* SPDX-License-Identifier: LGPL-2.1+ */
2 
3#include <net/if.h>
4 
5#include "alloc-util.h"
6#include "conf-parser.h"
7#include "firewall-util.h"
8#include "netlink-util.h"
9#include "networkd-address.h"
10#include "networkd-manager.h"
11#include "parse-util.h"
12#include "set.h"
13#include "socket-util.h"
14#include "string-util.h"
15#include "utf8.h"
16#include "util.h"
17 
18#define ADDRESSES_PER_LINK_MAX2048U 2048U
19#define STATIC_ADDRESSES_PER_NETWORK_MAX1024U 1024U
20 
21int address_new(Address **ret) {
22        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *address = NULL((void*)0);
23 
24        address = new0(Address, 1)((Address*) calloc((1), sizeof(Address)));
36
←
Memory is allocated→
25        if (!address)
37
←
Assuming 'address' is non-null→
38
←
Taking false branch→
26                return -ENOMEM12;
27 
28        address->family = AF_UNSPEC0;
29        address->scope = RT_SCOPE_UNIVERSE;
30        address->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME0xFFFFFFFFU;
31        address->cinfo.ifa_valid = CACHE_INFO_INFINITY_LIFE_TIME0xFFFFFFFFU;
32 
33        *ret = TAKE_PTR(address)({ typeof(address) _ptr_ = (address); (address) = ((void*)0);
 _ptr_; });
34 
35        return 0;
36}
37 
38int address_new_static(Network *network, const char *filename, unsigned section_line, Address **ret) {
39        _cleanup_(network_config_section_freep)__attribute__((cleanup(network_config_section_freep))) NetworkConfigSection *n = NULL((void*)0);
40        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *address = NULL((void*)0);
41        int r;
42 
43        assert(network)do { if ((__builtin_expect(!!(!(network)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("network"), "../src/network/networkd-address.c"
, 43, __PRETTY_FUNCTION__); } while (0);
44        assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/network/networkd-address.c"
, 44, __PRETTY_FUNCTION__); } while (0);
45        assert(!!filename == (section_line > 0))do { if ((__builtin_expect(!!(!(!!filename == (section_line >
 0))),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("!!filename == (section_line > 0)"
), "../src/network/networkd-address.c", 45, __PRETTY_FUNCTION__
); } while (0);
46 
47        if (filename) {
48                r = network_config_section_new(filename, section_line, &n);
49                if (r < 0)
50                        return r;
51 
52                address = hashmap_get(network->addresses_by_section, n);
53                if (address) {
54                        *ret = TAKE_PTR(address)({ typeof(address) _ptr_ = (address); (address) = ((void*)0);
 _ptr_; });
55 
56                        return 0;
57                }
58        }
59 
60        if (network->n_static_addresses >= STATIC_ADDRESSES_PER_NETWORK_MAX1024U)
61                return -E2BIG7;
62 
63        r = address_new(&address);
64        if (r < 0)
65                return r;
66 
67        if (filename) {
68                address->section = TAKE_PTR(n)({ typeof(n) _ptr_ = (n); (n) = ((void*)0); _ptr_; });
69 
70                r = hashmap_put(network->addresses_by_section, address->section, address);
71                if (r < 0)
72                        return r;
73        }
74 
75        address->network = network;
76        LIST_APPEND(addresses, network->static_addresses, address)do { typeof(*(network->static_addresses)) *_tail; do { typeof
(*(network->static_addresses)) *_item = (network->static_addresses
); if (!_item) (_tail) = ((void*)0); else { while (_item->
addresses_next) _item = _item->addresses_next; (_tail) = _item
; } } while (0); do { typeof(*(network->static_addresses))
 **_head = &(network->static_addresses), *_a = (_tail)
, *_b = (address); do { if ((__builtin_expect(!!(!(_b)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("_b"), "../src/network/networkd-address.c"
, 76, __PRETTY_FUNCTION__); } while (0); if (!_a) { if ((_b->
addresses_next = *_head)) _b->addresses_next->addresses_prev
 = _b; _b->addresses_prev = ((void*)0); *_head = _b; } else
 { if ((_b->addresses_next = _a->addresses_next)) _b->
addresses_next->addresses_prev = _b; _b->addresses_prev
 = _a; _a->addresses_next = _b; } } while (0); } while (0);
77        network->n_static_addresses++;
78 
79        *ret = TAKE_PTR(address)({ typeof(address) _ptr_ = (address); (address) = ((void*)0);
 _ptr_; });
80 
81        return 0;
82}
83 
84void address_free(Address *address) {
85        if (!address)
86                return;
87 
88        if (address->network) {
89                LIST_REMOVE(addresses, address->network->static_addresses, address)do { typeof(*(address->network->static_addresses)) **_head
 = &(address->network->static_addresses), *_item = (
address); do { if ((__builtin_expect(!!(!(_item)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("_item"), "../src/network/networkd-address.c"
, 89, __PRETTY_FUNCTION__); } while (0); if (_item->addresses_next
) _item->addresses_next->addresses_prev = _item->addresses_prev
; if (_item->addresses_prev) _item->addresses_prev->
addresses_next = _item->addresses_next; else { do { if ((__builtin_expect
(!!(!(*_head == _item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("*_head == _item"), "../src/network/networkd-address.c", 89
, __PRETTY_FUNCTION__); } while (0); *_head = _item->addresses_next
; } _item->addresses_next = _item->addresses_prev = ((void
*)0); } while (0);
90                assert(address->network->n_static_addresses > 0)do { if ((__builtin_expect(!!(!(address->network->n_static_addresses
 > 0)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("address->network->n_static_addresses > 0"
), "../src/network/networkd-address.c", 90, __PRETTY_FUNCTION__
); } while (0);
91                address->network->n_static_addresses--;
92 
93                if (address->section) {
94                        hashmap_remove(address->network->addresses_by_section, address->section);
95                        network_config_section_free(address->section);
96                }
97        }
98 
99        if (address->link) {
100                set_remove(address->link->addresses, address);
101                set_remove(address->link->addresses_foreign, address);
102 
103                if (in_addr_equal(AF_INET610, &address->in_addr, (const union in_addr_union *) &address->link->ipv6ll_address))
104                        memzero(&address->link->ipv6ll_address, sizeof(struct in6_addr))({ size_t _l_ = (sizeof(struct in6_addr)); void *_x_ = (&
address->link->ipv6ll_address); _l_ == 0 ? _x_ : memset
(_x_, 0, _l_); });
105        }
106 
107        free(address);
108}
109 
110static void address_hash_func(const void *b, struct siphash *state) {
111        const Address *a = b;
112 
113        assert(a)do { if ((__builtin_expect(!!(!(a)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("a"), "../src/network/networkd-address.c"
, 113, __PRETTY_FUNCTION__); } while (0);
114 
115        siphash24_compress(&a->family, sizeof(a->family), state);
116 
117        switch (a->family) {
118        case AF_INET2:
119                siphash24_compress(&a->prefixlen, sizeof(a->prefixlen), state);
120 
121                /* peer prefix */
122                if (a->prefixlen != 0) {
123                        uint32_t prefix;
124 
125                        if (a->in_addr_peer.in.s_addr != 0)
126                                prefix = be32toh(a->in_addr_peer.in.s_addr) >> (32 - a->prefixlen);
127                        else
128                                prefix = be32toh(a->in_addr.in.s_addr) >> (32 - a->prefixlen);
129 
130                        siphash24_compress(&prefix, sizeof(prefix), state);
131                }
132 
133                _fallthrough_;
134        case AF_INET610:
135                /* local address */
136                siphash24_compress(&a->in_addr, FAMILY_ADDRESS_SIZE(a->family), state);
137 
138                break;
139        default:
140                /* treat any other address family as AF_UNSPEC */
141                break;
142        }
143}
144 
145static int address_compare_func(const void *c1, const void *c2) {
146        const Address *a1 = c1, *a2 = c2;
147 
148        if (a1->family < a2->family)
149                return -1;
150        if (a1->family > a2->family)
151                return 1;
152 
153        switch (a1->family) {
154        /* use the same notion of equality as the kernel does */
155        case AF_INET2:
156                if (a1->prefixlen < a2->prefixlen)
157                        return -1;
158                if (a1->prefixlen > a2->prefixlen)
159                        return 1;
160 
161                /* compare the peer prefixes */
162                if (a1->prefixlen != 0) {
163                        /* make sure we don't try to shift by 32.
164                         * See ISO/IEC 9899:TC3 § 6.5.7.3. */
165                        uint32_t b1, b2;
166 
167                        if (a1->in_addr_peer.in.s_addr != 0)
168                                b1 = be32toh(a1->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen);
169                        else
170                                b1 = be32toh(a1->in_addr.in.s_addr) >> (32 - a1->prefixlen);
171 
172                        if (a2->in_addr_peer.in.s_addr != 0)
173                                b2 = be32toh(a2->in_addr_peer.in.s_addr) >> (32 - a1->prefixlen);
174                        else
175                                b2 = be32toh(a2->in_addr.in.s_addr) >> (32 - a1->prefixlen);
176 
177                        if (b1 < b2)
178                                return -1;
179                        if (b1 > b2)
180                                return 1;
181                }
182 
183                _fallthrough_;
184        case AF_INET610:
185                return memcmp(&a1->in_addr, &a2->in_addr, FAMILY_ADDRESS_SIZE(a1->family));
186        default:
187                /* treat any other address family as AF_UNSPEC */
188                return 0;
189        }
190}
191 
192static const struct hash_ops address_hash_ops = {
193        .hash = address_hash_func,
194        .compare = address_compare_func
195};
196 
197bool_Bool address_equal(Address *a1, Address *a2) {
198        if (a1 == a2)
199                return true1;
200 
201        if (!a1 || !a2)
202                return false0;
203 
204        return address_compare_func(a1, a2) == 0;
205}
206 
207static int address_establish(Address *address, Link *link) {
208        bool_Bool masq;
209        int r;
210 
211        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 211, __PRETTY_FUNCTION__); } while (0);
212        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 212, __PRETTY_FUNCTION__); } while (0);
213 
214        masq = link->network &&
215               link->network->ip_masquerade &&
216               address->family == AF_INET2 &&
217               address->scope < RT_SCOPE_LINK;
218 
219        /* Add firewall entry if this is requested */
220        if (address->ip_masquerade_done != masq) {
221                union in_addr_union masked = address->in_addr;
222                in_addr_mask(address->family, &masked, address->prefixlen);
223 
224                r = fw_add_masquerade(masq, AF_INET2, 0, &masked, address->prefixlen, NULL((void*)0), NULL((void*)0), 0);
225                if (r < 0)
226                        log_link_warning_errno(link, r, "Could not enable IP masquerading: %m")({ const Link *_l = (link); _l ? log_object_internal(4, r, "../src/network/networkd-address.c"
, 226, __func__, "INTERFACE=", _l->ifname, ((void*)0), ((void
*)0), "Could not enable IP masquerading: %m") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((4))), r, "../src/network/networkd-address.c"
, 226, __func__, "Could not enable IP masquerading: %m"); });
227 
228                address->ip_masquerade_done = masq;
229        }
230 
231        return 0;
232}
233 
234static int address_add_internal(Link *link, Set **addresses,
235                                int family,
236                                const union in_addr_union *in_addr,
237                                unsigned char prefixlen,
238                                Address **ret) {
239        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *address = NULL((void*)0);
240        int r;
241 
242        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 242, __PRETTY_FUNCTION__); } while (0);
243        assert(addresses)do { if ((__builtin_expect(!!(!(addresses)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("addresses"), "../src/network/networkd-address.c"
, 243, __PRETTY_FUNCTION__); } while (0);
244        assert(in_addr)do { if ((__builtin_expect(!!(!(in_addr)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("in_addr"), "../src/network/networkd-address.c"
, 244, __PRETTY_FUNCTION__); } while (0);
245 
246        r = address_new(&address);
247        if (r < 0)
248                return r;
249 
250        address->family = family;
251        address->in_addr = *in_addr;
252        address->prefixlen = prefixlen;
253        /* Consider address tentative until we get the real flags from the kernel */
254        address->flags = IFA_F_TENTATIVE0x40;
255 
256        r = set_ensure_allocated(addresses, &address_hash_ops)internal_set_ensure_allocated(addresses, &address_hash_ops
 );
257        if (r < 0)
258                return r;
259 
260        r = set_put(*addresses, address);
261        if (r < 0)
262                return r;
263 
264        address->link = link;
265 
266        if (ret)
267                *ret = address;
268 
269        address = NULL((void*)0);
270 
271        return 0;
272}
273 
274int address_add_foreign(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) {
275        return address_add_internal(link, &link->addresses_foreign, family, in_addr, prefixlen, ret);
276}
277 
278int address_add(Link *link, int family, const union in_addr_union *in_addr, unsigned char prefixlen, Address **ret) {
279        Address *address;
280        int r;
281 
282        r = address_get(link, family, in_addr, prefixlen, &address);
283        if (r == -ENOENT2) {
284                /* Address does not exist, create a new one */
285                r = address_add_internal(link, &link->addresses, family, in_addr, prefixlen, &address);
286                if (r < 0)
287                        return r;
288        } else if (r == 0) {
289                /* Take over a foreign address */
290                r = set_ensure_allocated(&link->addresses, &address_hash_ops)internal_set_ensure_allocated(&link->addresses, &address_hash_ops
 );
291                if (r < 0)
292                        return r;
293 
294                r = set_put(link->addresses, address);
295                if (r < 0)
296                        return r;
297 
298                set_remove(link->addresses_foreign, address);
299        } else if (r == 1) {
300                /* Already exists, do nothing */
301                ;
302        } else
303                return r;
304 
305        if (ret)
306                *ret = address;
307 
308        return 0;
309}
310 
311static int address_release(Address *address) {
312        int r;
313 
314        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 314, __PRETTY_FUNCTION__); } while (0);
315        assert(address->link)do { if ((__builtin_expect(!!(!(address->link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address->link"), "../src/network/networkd-address.c"
, 315, __PRETTY_FUNCTION__); } while (0);
316 
317        /* Remove masquerading firewall entry if it was added */
318        if (address->ip_masquerade_done) {
319                union in_addr_union masked = address->in_addr;
320                in_addr_mask(address->family, &masked, address->prefixlen);
321 
322                r = fw_add_masquerade(false0, AF_INET2, 0, &masked, address->prefixlen, NULL((void*)0), NULL((void*)0), 0);
323                if (r < 0)
324                        log_link_warning_errno(address->link, r, "Failed to disable IP masquerading: %m")({ const Link *_l = (address->link); _l ? log_object_internal
(4, r, "../src/network/networkd-address.c", 324, __func__, "INTERFACE="
, _l->ifname, ((void*)0), ((void*)0), "Failed to disable IP masquerading: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((4
))), r, "../src/network/networkd-address.c", 324, __func__, "Failed to disable IP masquerading: %m"
); });
325 
326                address->ip_masquerade_done = false0;
327        }
328 
329        return 0;
330}
331 
332int address_update(
333                Address *address,
334                unsigned char flags,
335                unsigned char scope,
336                const struct ifa_cacheinfo *cinfo) {
337 
338        bool_Bool ready;
339        int r;
340 
341        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 341, __PRETTY_FUNCTION__); } while (0);
342        assert(cinfo)do { if ((__builtin_expect(!!(!(cinfo)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("cinfo"), "../src/network/networkd-address.c"
, 342, __PRETTY_FUNCTION__); } while (0);
343        assert_return(address->link, 1)do { if (!(((__builtin_expect(!!(address->link),1))) ? (1)
 : (log_assert_failed_return_realm(LOG_REALM_SYSTEMD, ("address->link"
), "../src/network/networkd-address.c", 343, __PRETTY_FUNCTION__
), 0))) return (1); } while (0);
344 
345        if (IN_SET(address->link->state, LINK_STATE_FAILED, LINK_STATE_LINGER)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){LINK_STATE_FAILED, LINK_STATE_LINGER})/sizeof
(int)]; switch(address->link->state) { case LINK_STATE_FAILED
: case LINK_STATE_LINGER: _found = 1; break; default: break; }
 _found; }))
346                return 1;
347 
348        ready = address_is_ready(address);
349 
350        address->flags = flags;
351        address->scope = scope;
352        address->cinfo = *cinfo;
353 
354        link_update_operstate(address->link);
355 
356        if (!ready && address_is_ready(address)) {
357                link_check_ready(address->link);
358 
359                if (address->family == AF_INET610 &&
360                    in_addr_is_link_local(AF_INET610, &address->in_addr) > 0 &&
361                    in_addr_is_null(AF_INET610, (const union in_addr_union*) &address->link->ipv6ll_address) > 0) {
362 
363                        r = link_ipv6ll_gained(address->link, &address->in_addr.in6);
364                        if (r < 0)
365                                return r;
366                }
367        }
368 
369        return 0;
370}
371 
372int address_drop(Address *address) {
373        Link *link;
374        bool_Bool ready;
375 
376        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 376, __PRETTY_FUNCTION__); } while (0);
377 
378        ready = address_is_ready(address);
379        link = address->link;
380 
381        address_release(address);
382        address_free(address);
383 
384        link_update_operstate(link);
385 
386        if (link && !ready)
387                link_check_ready(link);
388 
389        return 0;
390}
391 
392int address_get(Link *link,
393                int family,
394                const union in_addr_union *in_addr,
395                unsigned char prefixlen,
396                Address **ret) {
397 
398        Address address, *existing;
399 
400        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 400, __PRETTY_FUNCTION__); } while (0);
401        assert(in_addr)do { if ((__builtin_expect(!!(!(in_addr)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("in_addr"), "../src/network/networkd-address.c"
, 401, __PRETTY_FUNCTION__); } while (0);
402 
403        address = (Address) {
404                .family = family,
405                .in_addr = *in_addr,
406                .prefixlen = prefixlen,
407        };
408 
409        existing = set_get(link->addresses, &address);
410        if (existing) {
411                if (ret)
412                        *ret = existing;
413                return 1;
414        }
415 
416        existing = set_get(link->addresses_foreign, &address);
417        if (existing) {
418                if (ret)
419                        *ret = existing;
420                return 0;
421        }
422 
423        return -ENOENT2;
424}
425 
426int address_remove(
427                Address *address,
428                Link *link,
429                sd_netlink_message_handler_t callback) {
430 
431        _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *req = NULL((void*)0);
432        int r;
433 
434        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 434, __PRETTY_FUNCTION__); } while (0);
435        assert(IN_SET(address->family, AF_INET, AF_INET6))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
 ((unused)) char _static_assert__macros_need_to_be_extended[20
 - sizeof((int[]){2, 10})/sizeof(int)]; switch(address->family
) { case 2: case 10: _found = 1; break; default: break; } _found
; }))),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("IN_SET(address->family, AF_INET, AF_INET6)"
), "../src/network/networkd-address.c", 435, __PRETTY_FUNCTION__
); } while (0);
436        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 436, __PRETTY_FUNCTION__); } while (0);
437        assert(link->ifindex > 0)do { if ((__builtin_expect(!!(!(link->ifindex > 0)),0))
) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("link->ifindex > 0"
), "../src/network/networkd-address.c", 437, __PRETTY_FUNCTION__
); } while (0);
438        assert(link->manager)do { if ((__builtin_expect(!!(!(link->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link->manager"), "../src/network/networkd-address.c"
, 438, __PRETTY_FUNCTION__); } while (0);
439        assert(link->manager->rtnl)do { if ((__builtin_expect(!!(!(link->manager->rtnl)),0
))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("link->manager->rtnl"
), "../src/network/networkd-address.c", 439, __PRETTY_FUNCTION__
); } while (0);
440 
441        r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_DELADDRRTM_DELADDR,
442                                     link->ifindex, address->family);
443        if (r < 0)
444                return log_error_errno(r, "Could not allocate RTM_DELADDR message: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 444, __func__, "Could not allocate RTM_DELADDR message: %m"
) : -abs(_e); });
445 
446        r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
447        if (r < 0)
448                return log_error_errno(r, "Could not set prefixlen: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 448, __func__, "Could not set prefixlen: %m"
) : -abs(_e); });
449 
450        if (address->family == AF_INET2)
451                r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
452        else if (address->family == AF_INET610)
453                r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
454        if (r < 0)
455                return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 455, __func__, "Could not append IFA_LOCAL attribute: %m"
) : -abs(_e); });
456 
457        r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL((void*)0));
458        if (r < 0)
459                return log_error_errno(r, "Could not send rtnetlink message: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 459, __func__, "Could not send rtnetlink message: %m"
) : -abs(_e); });
460 
461        link_ref(link);
462 
463        return 0;
464}
465 
466static int address_acquire(Link *link, Address *original, Address **ret) {
467        union in_addr_union in_addr = {};
468        struct in_addr broadcast = {};
469        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *na = NULL((void*)0);
470        int r;
471 
472        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 472, __PRETTY_FUNCTION__); } while (0);
21
←
Taking false branch→
22
←
Loop condition is false.  Exiting loop→
473        assert(original)do { if ((__builtin_expect(!!(!(original)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("original"), "../src/network/networkd-address.c"
, 473, __PRETTY_FUNCTION__); } while (0);
23
←
Taking false branch→
24
←
Loop condition is false.  Exiting loop→
474        assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/network/networkd-address.c"
, 474, __PRETTY_FUNCTION__); } while (0);
25
←
Taking false branch→
26
←
Loop condition is false.  Exiting loop→
475 
476        /* Something useful was configured? just use it */
477        if (in_addr_is_null(original->family, &original->in_addr) <= 0)
27
←
Assuming the condition is false→
28
←
Taking false branch→
478                return 0;
479 
480        /* The address is configured to be 0.0.0.0 or [::] by the user?
481         * Then let's acquire something more useful from the pool. */
482        r = manager_address_pool_acquire(link->manager, original->family, original->prefixlen, &in_addr);
483        if (r < 0)
29
←
Assuming 'r' is >= 0→
30
←
Taking false branch→
484                return log_link_error_errno(link, r, "Failed to acquire address from pool: %m")({ const Link *_l = (link); _l ? log_object_internal(3, r, "../src/network/networkd-address.c"
, 484, __func__, "INTERFACE=", _l->ifname, ((void*)0), ((void
*)0), "Failed to acquire address from pool: %m") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((3))), r, "../src/network/networkd-address.c"
, 484, __func__, "Failed to acquire address from pool: %m"); }
);
485        if (r == 0) {
31
←
Assuming 'r' is not equal to 0→
32
←
Taking false branch→
486                log_link_error(link, "Couldn't find free address for interface, all taken.")({ const Link *_l = (link); _l ? log_object_internal(3, 0, "../src/network/networkd-address.c"
, 486, __func__, "INTERFACE=", _l->ifname, ((void*)0), ((void
*)0), "Couldn't find free address for interface, all taken.")
 : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3)
)), 0, "../src/network/networkd-address.c", 486, __func__, "Couldn't find free address for interface, all taken."
); });
487                return -EBUSY16;
488        }
489 
490        if (original->family32.1
Field 'family' is not equal to AF_INET
 == AF_INET2) {
33
←
Taking false branch→
491                /* Pick first address in range for ourselves ... */
492                in_addr.in.s_addr = in_addr.in.s_addr | htobe32(1);
493 
494                /* .. and use last as broadcast address */
495                if (original->prefixlen > 30)
496                        broadcast.s_addr = 0;
497                else
498                        broadcast.s_addr = in_addr.in.s_addr | htobe32(0xFFFFFFFFUL >> original->prefixlen);
499        } else if (original->family33.1
Field 'family' is equal to AF_INET6
 == AF_INET610)
34
←
Taking true branch→
500                in_addr.in6.s6_addr__in6_u.__u6_addr8[15] |= 1;
501 
502        r = address_new(&na);
35
←
Calling 'address_new'→
39
←
Returned allocated memory via 1st parameter→
503        if (r39.1
'r' is >= 0
 < 0)
40
←
Taking false branch→
504                return r;
505 
506        na->family = original->family;
507        na->prefixlen = original->prefixlen;
508        na->scope = original->scope;
509        na->cinfo = original->cinfo;
510 
511        if (original->label) {
41
←
Assuming field 'label' is non-null→
42
←
Taking true branch→
512                na->label = strdup(original->label);
513                if (!na->label)
43
←
Assuming field 'label' is null→
44
←
Taking true branch→
514                        return -ENOMEM12;
45
←
Potential leak of memory pointed to by 'na'
515        }
516 
517        na->broadcast = broadcast;
518        na->in_addr = in_addr;
519 
520        LIST_PREPEND(addresses, link->pool_addresses, na)do { typeof(*(link->pool_addresses)) **_head = &(link->
pool_addresses), *_item = (na); do { if ((__builtin_expect(!!
(!(_item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("_item"
), "../src/network/networkd-address.c", 520, __PRETTY_FUNCTION__
); } while (0); if ((_item->addresses_next = *_head)) _item
->addresses_next->addresses_prev = _item; _item->addresses_prev
 = ((void*)0); *_head = _item; } while (0);
521 
522        *ret = TAKE_PTR(na)({ typeof(na) _ptr_ = (na); (na) = ((void*)0); _ptr_; });
523 
524        return 0;
525}
526 
527int address_configure(
528                Address *address,
529                Link *link,
530                sd_netlink_message_handler_t callback,
531                bool_Bool update) {
532 
533        _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *req = NULL((void*)0);
534        int r;
535 
536        assert(address)do { if ((__builtin_expect(!!(!(address)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("address"), "../src/network/networkd-address.c"
, 536, __PRETTY_FUNCTION__); } while (0);
1
Assuming 'address' is non-null→
2
←
Taking false branch→
3
←
Loop condition is false.  Exiting loop→
537        assert(IN_SET(address->family, AF_INET, AF_INET6))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
 ((unused)) char _static_assert__macros_need_to_be_extended[20
 - sizeof((int[]){2, 10})/sizeof(int)]; switch(address->family
) { case 2: case 10: _found = 1; break; default: break; } _found
; }))),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("IN_SET(address->family, AF_INET, AF_INET6)"
), "../src/network/networkd-address.c", 537, __PRETTY_FUNCTION__
); } while (0);
4
←
Control jumps to 'case 10:'  at line 537→
5
←
 Execution continues on line 537→
6
←
Taking false branch→
7
←
Loop condition is false.  Exiting loop→
538        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/networkd-address.c"
, 538, __PRETTY_FUNCTION__); } while (0);
8
←
Assuming 'link' is non-null→
9
←
Taking false branch→
10
←
Loop condition is false.  Exiting loop→
539        assert(link->ifindex > 0)do { if ((__builtin_expect(!!(!(link->ifindex > 0)),0))
) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("link->ifindex > 0"
), "../src/network/networkd-address.c", 539, __PRETTY_FUNCTION__
); } while (0);
11
←
Assuming field 'ifindex' is > 0→
12
←
Taking false branch→
13
←
Loop condition is false.  Exiting loop→
540        assert(link->manager)do { if ((__builtin_expect(!!(!(link->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link->manager"), "../src/network/networkd-address.c"
, 540, __PRETTY_FUNCTION__); } while (0);
14
←
Assuming field 'manager' is non-null→
15
←
Taking false branch→
16
←
Loop condition is false.  Exiting loop→
541        assert(link->manager->rtnl)do { if ((__builtin_expect(!!(!(link->manager->rtnl)),0
))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("link->manager->rtnl"
), "../src/network/networkd-address.c", 541, __PRETTY_FUNCTION__
); } while (0);
17
←
Assuming field 'rtnl' is non-null→
18
←
Taking false branch→
19
←
Loop condition is false.  Exiting loop→
542 
543        /* If this is a new address, then refuse adding more than the limit */
544        if (address_get(link, address->family, &address->in_addr, address->prefixlen, NULL((void*)0)) <= 0 &&
545            set_size(link->addresses) >= ADDRESSES_PER_LINK_MAX2048U)
546                return -E2BIG7;
547 
548        r = address_acquire(link, address, &address);
20
←
Calling 'address_acquire'→
549        if (r < 0)
550                return r;
551 
552        if (update)
553                r = sd_rtnl_message_new_addr_update(link->manager->rtnl, &req,
554                                                    link->ifindex, address->family);
555        else
556                r = sd_rtnl_message_new_addr(link->manager->rtnl, &req, RTM_NEWADDRRTM_NEWADDR,
557                                             link->ifindex, address->family);
558        if (r < 0)
559                return log_error_errno(r, "Could not allocate RTM_NEWADDR message: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 559, __func__, "Could not allocate RTM_NEWADDR message: %m"
) : -abs(_e); });
560 
561        r = sd_rtnl_message_addr_set_prefixlen(req, address->prefixlen);
562        if (r < 0)
563                return log_error_errno(r, "Could not set prefixlen: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 563, __func__, "Could not set prefixlen: %m"
) : -abs(_e); });
564 
565        address->flags |= IFA_F_PERMANENT0x80;
566 
567        if (address->home_address)
568                address->flags |= IFA_F_HOMEADDRESS0x10;
569 
570        if (address->duplicate_address_detection)
571                address->flags |= IFA_F_NODAD0x02;
572 
573        if (address->manage_temporary_address)
574                address->flags |= IFA_F_MANAGETEMPADDR0x100;
575 
576        if (address->prefix_route)
577                address->flags |= IFA_F_NOPREFIXROUTE0x200;
578 
579        if (address->autojoin)
580                address->flags |= IFA_F_MCAUTOJOIN0x400;
581 
582        r = sd_rtnl_message_addr_set_flags(req, (address->flags & 0xff));
583        if (r < 0)
584                return log_error_errno(r, "Could not set flags: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 584, __func__, "Could not set flags: %m"
) : -abs(_e); });
585 
586        if (address->flags & ~0xff) {
587                r = sd_netlink_message_append_u32(req, IFA_FLAGS, address->flags);
588                if (r < 0)
589                        return log_error_errno(r, "Could not set extended flags: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 589, __func__, "Could not set extended flags: %m"
) : -abs(_e); });
590        }
591 
592        r = sd_rtnl_message_addr_set_scope(req, address->scope);
593        if (r < 0)
594                return log_error_errno(r, "Could not set scope: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 594, __func__, "Could not set scope: %m"
) : -abs(_e); });
595 
596        if (address->family == AF_INET2)
597                r = sd_netlink_message_append_in_addr(req, IFA_LOCAL, &address->in_addr.in);
598        else if (address->family == AF_INET610)
599                r = sd_netlink_message_append_in6_addr(req, IFA_LOCAL, &address->in_addr.in6);
600        if (r < 0)
601                return log_error_errno(r, "Could not append IFA_LOCAL attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 601, __func__, "Could not append IFA_LOCAL attribute: %m"
) : -abs(_e); });
602 
603        if (!in_addr_is_null(address->family, &address->in_addr_peer)) {
604                if (address->family == AF_INET2)
605                        r = sd_netlink_message_append_in_addr(req, IFA_ADDRESS, &address->in_addr_peer.in);
606                else if (address->family == AF_INET610)
607                        r = sd_netlink_message_append_in6_addr(req, IFA_ADDRESS, &address->in_addr_peer.in6);
608                if (r < 0)
609                        return log_error_errno(r, "Could not append IFA_ADDRESS attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 609, __func__, "Could not append IFA_ADDRESS attribute: %m"
) : -abs(_e); });
610        } else {
611                if (address->family == AF_INET2) {
612                        if (address->prefixlen <= 30) {
613                                r = sd_netlink_message_append_in_addr(req, IFA_BROADCAST, &address->broadcast);
614                                if (r < 0)
615                                        return log_error_errno(r, "Could not append IFA_BROADCAST attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 615, __func__, "Could not append IFA_BROADCAST attribute: %m"
) : -abs(_e); });
616                        }
617                }
618        }
619 
620        if (address->label) {
621                r = sd_netlink_message_append_string(req, IFA_LABEL, address->label);
622                if (r < 0)
623                        return log_error_errno(r, "Could not append IFA_LABEL attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 623, __func__, "Could not append IFA_LABEL attribute: %m"
) : -abs(_e); });
624        }
625 
626        r = sd_netlink_message_append_cache_info(req, IFA_CACHEINFO,
627                                              &address->cinfo);
628        if (r < 0)
629                return log_error_errno(r, "Could not append IFA_CACHEINFO attribute: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 629, __func__, "Could not append IFA_CACHEINFO attribute: %m"
) : -abs(_e); });
630 
631        r = address_establish(address, link);
632        if (r < 0)
633                return r;
634 
635        r = sd_netlink_call_async(link->manager->rtnl, req, callback, link, 0, NULL((void*)0));
636        if (r < 0) {
637                address_release(address);
638                return log_error_errno(r, "Could not send rtnetlink message: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 638, __func__, "Could not send rtnetlink message: %m"
) : -abs(_e); });
639        }
640 
641        link_ref(link);
642 
643        r = address_add(link, address->family, &address->in_addr, address->prefixlen, NULL((void*)0));
644        if (r < 0) {
645                address_release(address);
646                return log_error_errno(r, "Could not add address: %m")({ int _level = ((3)), _e = ((r)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/networkd-address.c", 646, __func__, "Could not add address: %m"
) : -abs(_e); });
647        }
648 
649        return 0;
650}
651 
652int config_parse_broadcast(
653                const char *unit,
654                const char *filename,
655                unsigned line,
656                const char *section,
657                unsigned section_line,
658                const char *lvalue,
659                int ltype,
660                const char *rvalue,
661                void *data,
662                void *userdata) {
663 
664        Network *network = userdata;
665        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
666        int r;
667 
668        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 668, __PRETTY_FUNCTION__); } while (0);
669        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 669, __PRETTY_FUNCTION__); } while (0);
670        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 670, __PRETTY_FUNCTION__); } while (0);
671        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 671, __PRETTY_FUNCTION__); } while (0);
672        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 672, __PRETTY_FUNCTION__); } while (0);
673 
674        r = address_new_static(network, filename, section_line, &n);
675        if (r < 0)
676                return r;
677 
678        if (n->family == AF_INET610) {
679                log_syntax(unit, LOG_ERR, filename, line, 0, "Broadcast is not valid for IPv6 addresses, 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/network/networkd-address.c", 679
, __func__, "Broadcast is not valid for IPv6 addresses, ignoring assignment: %s"
, rvalue) : -abs(_e); });
680                return 0;
681        }
682 
683        r = in_addr_from_string(AF_INET2, rvalue, (union in_addr_union*) &n->broadcast);
684        if (r < 0) {
685                log_syntax(unit, LOG_ERR, filename, line, r, "Broadcast is invalid, 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/network/networkd-address.c", 685
, __func__, "Broadcast is invalid, ignoring assignment: %s", rvalue
) : -abs(_e); });
686                return 0;
687        }
688 
689        n->family = AF_INET2;
690        n = NULL((void*)0);
691 
692        return 0;
693}
694 
695int config_parse_address(const char *unit,
696                const char *filename,
697                unsigned line,
698                const char *section,
699                unsigned section_line,
700                const char *lvalue,
701                int ltype,
702                const char *rvalue,
703                void *data,
704                void *userdata) {
705 
706        Network *network = userdata;
707        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
708        const char *address, *e;
709        union in_addr_union buffer;
710        int r, f;
711 
712        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 712, __PRETTY_FUNCTION__); } while (0);
713        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 713, __PRETTY_FUNCTION__); } while (0);
714        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 714, __PRETTY_FUNCTION__); } while (0);
715        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 715, __PRETTY_FUNCTION__); } while (0);
716        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 716, __PRETTY_FUNCTION__); } while (0);
717 
718        if (streq(section, "Network")(strcmp((section),("Network")) == 0)) {
719                /* we are not in an Address section, so treat
720                 * this as the special '0' section */
721                r = address_new_static(network, NULL((void*)0), 0, &n);
722        } else
723                r = address_new_static(network, filename, section_line, &n);
724 
725        if (r < 0)
726                return r;
727 
728        /* Address=address/prefixlen */
729 
730        /* prefixlen */
731        e = strchr(rvalue, '/');
732        if (e) {
733                unsigned i;
734 
735                r = safe_atou(e + 1, &i);
736                if (r < 0) {
737                        log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length is invalid, ignoring assignment: %s", e + 1)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/network/networkd-address.c", 737
, __func__, "Prefix length is invalid, ignoring assignment: %s"
, e + 1) : -abs(_e); });
738                        return 0;
739                }
740 
741                n->prefixlen = (unsigned char) i;
742 
743                address = strndupa(rvalue, e - rvalue)(__extension__ ({ const char *__old = (rvalue); size_t __len =
 strnlen (__old, (e - rvalue)); char *__new = (char *) __builtin_alloca
 (__len + 1); __new[__len] = '\0'; (char *) memcpy (__new, __old
, __len); }));
744        } else
745                address = rvalue;
746 
747        r = in_addr_from_string_auto(address, &f, &buffer);
748        if (r < 0) {
749                log_syntax(unit, LOG_ERR, filename, line, r, "Address is invalid, ignoring assignment: %s", address)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/network/networkd-address.c", 749
, __func__, "Address is invalid, ignoring assignment: %s", address
) : -abs(_e); });
750                return 0;
751        }
752 
753        if (!e && f == AF_INET2) {
754                r = in4_addr_default_prefixlen(&buffer.in, &n->prefixlen);
755                if (r < 0) {
756                        log_syntax(unit, LOG_ERR, filename, line, r, "Prefix length not specified, and a default one cannot be deduced for '%s', ignoring assignment", address)({ int _level = (3), _e = (r); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/network/networkd-address.c", 756
, __func__, "Prefix length not specified, and a default one cannot be deduced for '%s', ignoring assignment"
, address) : -abs(_e); });
757                        return 0;
758                }
759        }
760 
761        if (n->family != AF_UNSPEC0 && f != n->family) {
762                log_syntax(unit, LOG_ERR, filename, line, 0, "Address is incompatible, ignoring assignment: %s", address)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/network/networkd-address.c", 762
, __func__, "Address is incompatible, ignoring assignment: %s"
, address) : -abs(_e); });
763                return 0;
764        }
765 
766        n->family = f;
767 
768        if (streq(lvalue, "Address")(strcmp((lvalue),("Address")) == 0))
769                n->in_addr = buffer;
770        else
771                n->in_addr_peer = buffer;
772 
773        if (n->family == AF_INET2 && n->broadcast.s_addr == 0)
774                n->broadcast.s_addr = n->in_addr.in.s_addr | htonl(0xfffffffflu >> n->prefixlen);
775 
776        n = NULL((void*)0);
777 
778        return 0;
779}
780 
781int config_parse_label(
782                const char *unit,
783                const char *filename,
784                unsigned line,
785                const char *section,
786                unsigned section_line,
787                const char *lvalue,
788                int ltype,
789                const char *rvalue,
790                void *data,
791                void *userdata) {
792 
793        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
794        Network *network = userdata;
795        int r;
796 
797        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 797, __PRETTY_FUNCTION__); } while (0);
798        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 798, __PRETTY_FUNCTION__); } while (0);
799        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 799, __PRETTY_FUNCTION__); } while (0);
800        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 800, __PRETTY_FUNCTION__); } while (0);
801        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 801, __PRETTY_FUNCTION__); } while (0);
802 
803        r = address_new_static(network, filename, section_line, &n);
804        if (r < 0)
805                return r;
806 
807        if (!address_label_valid(rvalue)) {
808                log_syntax(unit, LOG_ERR, filename, line, 0, "Interface label is too long or invalid, 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/network/networkd-address.c", 808
, __func__, "Interface label is too long or invalid, ignoring assignment: %s"
, rvalue) : -abs(_e); });
809                return 0;
810        }
811 
812        r = free_and_strdup(&n->label, rvalue);
813        if (r < 0)
814                return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/network/networkd-address.c"
, 814, __func__);
815 
816        n = NULL((void*)0);
817 
818        return 0;
819}
820 
821int config_parse_lifetime(const char *unit,
822                          const char *filename,
823                          unsigned line,
824                          const char *section,
825                          unsigned section_line,
826                          const char *lvalue,
827                          int ltype,
828                          const char *rvalue,
829                          void *data,
830                          void *userdata) {
831        Network *network = userdata;
832        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
833        unsigned k;
834        int r;
835 
836        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 836, __PRETTY_FUNCTION__); } while (0);
837        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 837, __PRETTY_FUNCTION__); } while (0);
838        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 838, __PRETTY_FUNCTION__); } while (0);
839        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 839, __PRETTY_FUNCTION__); } while (0);
840        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 840, __PRETTY_FUNCTION__); } while (0);
841 
842        r = address_new_static(network, filename, section_line, &n);
843        if (r < 0)
844                return r;
845 
846        if (STR_IN_SET(rvalue, "forever", "infinity")(!!strv_find((((char**) ((const char*[]) { "forever", "infinity"
, ((void*)0) }))), (rvalue)))) {
847                n->cinfo.ifa_prefered = CACHE_INFO_INFINITY_LIFE_TIME0xFFFFFFFFU;
848                n = NULL((void*)0);
849 
850                return 0;
851        }
852 
853        r = safe_atou(rvalue, &k);
854        if (r < 0) {
855                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse PreferredLifetime, 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/network/networkd-address.c", 855
, __func__, "Failed to parse PreferredLifetime, ignoring: %s"
, rvalue) : -abs(_e); });
856                return 0;
857        }
858 
859        if (k != 0)
860                log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid PreferredLifetime value, ignoring: %d", k)({ int _level = (3), _e = (0); (log_get_max_level_realm(LOG_REALM_SYSTEMD
) >= ((_level) & 0x07)) ? log_syntax_internal(unit, _level
, filename, line, _e, "../src/network/networkd-address.c", 860
, __func__, "Invalid PreferredLifetime value, ignoring: %d", k
) : -abs(_e); });
861        else {
862                n->cinfo.ifa_prefered = k;
863                n = NULL((void*)0);
864        }
865 
866        return 0;
867}
868 
869int config_parse_address_flags(const char *unit,
870                               const char *filename,
871                               unsigned line,
872                               const char *section,
873                               unsigned section_line,
874                               const char *lvalue,
875                               int ltype,
876                               const char *rvalue,
877                               void *data,
878                               void *userdata) {
879        Network *network = userdata;
880        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
881        int r;
882 
883        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 883, __PRETTY_FUNCTION__); } while (0);
884        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 884, __PRETTY_FUNCTION__); } while (0);
885        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 885, __PRETTY_FUNCTION__); } while (0);
886        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 886, __PRETTY_FUNCTION__); } while (0);
887        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 887, __PRETTY_FUNCTION__); } while (0);
888 
889        r = address_new_static(network, filename, section_line, &n);
890        if (r < 0)
891                return r;
892 
893        r = parse_boolean(rvalue);
894        if (r < 0) {
895                log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address flag, 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/network/networkd-address.c", 895
, __func__, "Failed to parse address flag, ignoring: %s", rvalue
) : -abs(_e); });
896                return 0;
897        }
898 
899        if (streq(lvalue, "HomeAddress")(strcmp((lvalue),("HomeAddress")) == 0))
900                n->home_address = r;
901        else if (streq(lvalue, "DuplicateAddressDetection")(strcmp((lvalue),("DuplicateAddressDetection")) == 0))
902                n->duplicate_address_detection = r;
903        else if (streq(lvalue, "ManageTemporaryAddress")(strcmp((lvalue),("ManageTemporaryAddress")) == 0))
904                n->manage_temporary_address = r;
905        else if (streq(lvalue, "PrefixRoute")(strcmp((lvalue),("PrefixRoute")) == 0))
906                n->prefix_route = r;
907        else if (streq(lvalue, "AutoJoin")(strcmp((lvalue),("AutoJoin")) == 0))
908                n->autojoin = r;
909 
910        return 0;
911}
912 
913int config_parse_address_scope(const char *unit,
914                               const char *filename,
915                               unsigned line,
916                               const char *section,
917                               unsigned section_line,
918                               const char *lvalue,
919                               int ltype,
920                               const char *rvalue,
921                               void *data,
922                               void *userdata) {
923        Network *network = userdata;
924        _cleanup_(address_freep)__attribute__((cleanup(address_freep))) Address *n = NULL((void*)0);
925        int r;
926 
927        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/networkd-address.c"
, 927, __PRETTY_FUNCTION__); } while (0);
928        assert(section)do { if ((__builtin_expect(!!(!(section)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("section"), "../src/network/networkd-address.c"
, 928, __PRETTY_FUNCTION__); } while (0);
929        assert(lvalue)do { if ((__builtin_expect(!!(!(lvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/networkd-address.c"
, 929, __PRETTY_FUNCTION__); } while (0);
930        assert(rvalue)do { if ((__builtin_expect(!!(!(rvalue)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("rvalue"), "../src/network/networkd-address.c"
, 930, __PRETTY_FUNCTION__); } while (0);
931        assert(data)do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/networkd-address.c"
, 931, __PRETTY_FUNCTION__); } while (0);
932 
933        r = address_new_static(network, filename, section_line, &n);
934        if (r < 0)
935                return r;
936 
937        if (streq(rvalue, "host")(strcmp((rvalue),("host")) == 0))
938                n->scope = RT_SCOPE_HOST;
939        else if (streq(rvalue, "link")(strcmp((rvalue),("link")) == 0))
940                n->scope = RT_SCOPE_LINK;
941        else if (streq(rvalue, "global")(strcmp((rvalue),("global")) == 0))
942                n->scope = RT_SCOPE_UNIVERSE;
943        else {
944                r = safe_atou8(rvalue , &n->scope);
945                if (r < 0) {
946                        log_syntax(unit, LOG_ERR, filename, line, r, "Could not parse address scope \"%s\", ignoring assignment: %m", 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/network/networkd-address.c", 946
, __func__, "Could not parse address scope \"%s\", ignoring assignment: %m"
, rvalue) : -abs(_e); });
947                        return 0;
948                }
949        }
950 
951        n = NULL((void*)0);
952 
953        return 0;
954}
955 
956bool_Bool address_is_ready(const Address *a) {
957        assert(a)do { if ((__builtin_expect(!!(!(a)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("a"), "../src/network/networkd-address.c"
, 957, __PRETTY_FUNCTION__); } while (0);
958 
959        if (a->family == AF_INET610)
960                return !(a->flags & IFA_F_TENTATIVE0x40);
961        else
962                return !(a->flags & (IFA_F_TENTATIVE0x40 | IFA_F_DEPRECATED0x20));
963}