../src/network/netdev/netdev.c

Bug Summary

File:	build-scan/../src/network/netdev/netdev.c
Warning:	line 459, column 24 Potential leak of memory pointed to by 'mac'
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 netdev.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/netdev/netdev.c
1/* SPDX-License-Identifier: LGPL-2.1+ */
2 
3#include <net/if.h>
4 
5#include "alloc-util.h"
6#include "conf-files.h"
7#include "conf-parser.h"
8#include "fd-util.h"
9#include "list.h"
10#include "netlink-util.h"
11#include "network-internal.h"
12#include "netdev/netdev.h"
13#include "networkd-manager.h"
14#include "networkd-link.h"
15#include "siphash24.h"
16#include "stat-util.h"
17#include "string-table.h"
18#include "string-util.h"
19 
20#include "netdev/bridge.h"
21#include "netdev/bond.h"
22#include "netdev/geneve.h"
23#include "netdev/vlan.h"
24#include "netdev/macvlan.h"
25#include "netdev/ipvlan.h"
26#include "netdev/vxlan.h"
27#include "netdev/tunnel.h"
28#include "netdev/tuntap.h"
29#include "netdev/veth.h"
30#include "netdev/dummy.h"
31#include "netdev/vrf.h"
32#include "netdev/vcan.h"
33#include "netdev/vxcan.h"
34#include "netdev/wireguard.h"
35#include "netdev/netdevsim.h"
36 
37const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX] = {
38        [NETDEV_KIND_BRIDGE] = &bridge_vtable,
39        [NETDEV_KIND_BOND] = &bond_vtable,
40        [NETDEV_KIND_VLAN] = &vlan_vtable,
41        [NETDEV_KIND_MACVLAN] = &macvlan_vtable,
42        [NETDEV_KIND_MACVTAP] = &macvtap_vtable,
43        [NETDEV_KIND_IPVLAN] = &ipvlan_vtable,
44        [NETDEV_KIND_VXLAN] = &vxlan_vtable,
45        [NETDEV_KIND_IPIP] = &ipip_vtable,
46        [NETDEV_KIND_GRE] = &gre_vtable,
47        [NETDEV_KIND_GRETAP] = &gretap_vtable,
48        [NETDEV_KIND_IP6GRE] = &ip6gre_vtable,
49        [NETDEV_KIND_IP6GRETAP] = &ip6gretap_vtable,
50        [NETDEV_KIND_SIT] = &sit_vtable,
51        [NETDEV_KIND_VTI] = &vti_vtable,
52        [NETDEV_KIND_VTI6] = &vti6_vtable,
53        [NETDEV_KIND_VETH] = &veth_vtable,
54        [NETDEV_KIND_DUMMY] = &dummy_vtable,
55        [NETDEV_KIND_TUN] = &tun_vtable,
56        [NETDEV_KIND_TAP] = &tap_vtable,
57        [NETDEV_KIND_IP6TNL] = &ip6tnl_vtable,
58        [NETDEV_KIND_VRF] = &vrf_vtable,
59        [NETDEV_KIND_VCAN] = &vcan_vtable,
60        [NETDEV_KIND_GENEVE] = &geneve_vtable,
61        [NETDEV_KIND_VXCAN] = &vxcan_vtable,
62        [NETDEV_KIND_WIREGUARD] = &wireguard_vtable,
63        [NETDEV_KIND_NETDEVSIM] = &netdevsim_vtable,
64};
65 
66static const char* const netdev_kind_table[_NETDEV_KIND_MAX] = {
67        [NETDEV_KIND_BRIDGE] = "bridge",
68        [NETDEV_KIND_BOND] = "bond",
69        [NETDEV_KIND_VLAN] = "vlan",
70        [NETDEV_KIND_MACVLAN] = "macvlan",
71        [NETDEV_KIND_MACVTAP] = "macvtap",
72        [NETDEV_KIND_IPVLAN] = "ipvlan",
73        [NETDEV_KIND_VXLAN] = "vxlan",
74        [NETDEV_KIND_IPIP] = "ipip",
75        [NETDEV_KIND_GRE] = "gre",
76        [NETDEV_KIND_GRETAP] = "gretap",
77        [NETDEV_KIND_IP6GRE] = "ip6gre",
78        [NETDEV_KIND_IP6GRETAP] = "ip6gretap",
79        [NETDEV_KIND_SIT] = "sit",
80        [NETDEV_KIND_VETH] = "veth",
81        [NETDEV_KIND_VTI] = "vti",
82        [NETDEV_KIND_VTI6] = "vti6",
83        [NETDEV_KIND_DUMMY] = "dummy",
84        [NETDEV_KIND_TUN] = "tun",
85        [NETDEV_KIND_TAP] = "tap",
86        [NETDEV_KIND_IP6TNL] = "ip6tnl",
87        [NETDEV_KIND_VRF] = "vrf",
88        [NETDEV_KIND_VCAN] = "vcan",
89        [NETDEV_KIND_GENEVE] = "geneve",
90        [NETDEV_KIND_VXCAN] = "vxcan",
91        [NETDEV_KIND_WIREGUARD] = "wireguard",
92        [NETDEV_KIND_NETDEVSIM] = "netdevsim",
93};
94 
95DEFINE_STRING_TABLE_LOOKUP(netdev_kind, NetDevKind)const char *netdev_kind_to_string(NetDevKind i) { if (i < 0
 || i >= (NetDevKind) __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(netdev_kind_table), typeof
(&*(netdev_kind_table))), sizeof(netdev_kind_table)/sizeof
((netdev_kind_table)[0]), ((void)0)))) return ((void*)0); return
 netdev_kind_table[i]; } NetDevKind netdev_kind_from_string(const
 char *s) { return (NetDevKind) string_table_lookup(netdev_kind_table
, __extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(netdev_kind_table), typeof(&*(netdev_kind_table))
), sizeof(netdev_kind_table)/sizeof((netdev_kind_table)[0]), (
(void)0))), s); };
96DEFINE_CONFIG_PARSE_ENUM(config_parse_netdev_kind, netdev_kind, NetDevKind, "Failed to parse netdev kind")int config_parse_netdev_kind(const char *unit, const char *filename
, unsigned line, const char *section, unsigned section_line, const
 char *lvalue, int ltype, const char *rvalue, void *data, void
 *userdata) { NetDevKind *i = data, x; do { if ((__builtin_expect
(!!(!(filename)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("filename"), "../src/network/netdev/netdev.c", 96, __PRETTY_FUNCTION__
); } while (0); do { if ((__builtin_expect(!!(!(lvalue)),0)))
 log_assert_failed_realm(LOG_REALM_SYSTEMD, ("lvalue"), "../src/network/netdev/netdev.c"
, 96, __PRETTY_FUNCTION__); } while (0); do { if ((__builtin_expect
(!!(!(rvalue)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("rvalue"), "../src/network/netdev/netdev.c", 96, __PRETTY_FUNCTION__
); } while (0); do { if ((__builtin_expect(!!(!(data)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("data"), "../src/network/netdev/netdev.c"
, 96, __PRETTY_FUNCTION__); } while (0); x = netdev_kind_from_string
(rvalue); if (x < 0) { ({ 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/netdev/netdev.c"
, 96, __func__, "Failed to parse netdev kind" ", ignoring: %s"
, rvalue) : -abs(_e); }); return 0; } *i = x; return 0; };
97 
98static void netdev_cancel_callbacks(NetDev *netdev) {
99        _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *m = NULL((void*)0);
100        netdev_join_callback *callback;
101 
102        if (!netdev || !netdev->manager)
103                return;
104 
105        rtnl_message_new_synthetic_error(netdev->manager->rtnl, -ENODEV19, 0, &m);
106 
107        while ((callback = netdev->callbacks)) {
108                if (m) {
109                        assert(callback->link)do { if ((__builtin_expect(!!(!(callback->link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("callback->link"), "../src/network/netdev/netdev.c"
, 109, __PRETTY_FUNCTION__); } while (0);
110                        assert(callback->callback)do { if ((__builtin_expect(!!(!(callback->callback)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("callback->callback"), "../src/network/netdev/netdev.c"
, 110, __PRETTY_FUNCTION__); } while (0);
111                        assert(netdev->manager)do { if ((__builtin_expect(!!(!(netdev->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev->manager"), "../src/network/netdev/netdev.c"
, 111, __PRETTY_FUNCTION__); } while (0);
112                        assert(netdev->manager->rtnl)do { if ((__builtin_expect(!!(!(netdev->manager->rtnl))
,0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->manager->rtnl"
), "../src/network/netdev/netdev.c", 112, __PRETTY_FUNCTION__
); } while (0);
113 
114                        callback->callback(netdev->manager->rtnl, m, callback->link);
115                }
116 
117                LIST_REMOVE(callbacks, netdev->callbacks, callback)do { typeof(*(netdev->callbacks)) **_head = &(netdev->
callbacks), *_item = (callback); do { if ((__builtin_expect(!
!(!(_item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, (
"_item"), "../src/network/netdev/netdev.c", 117, __PRETTY_FUNCTION__
); } while (0); if (_item->callbacks_next) _item->callbacks_next
->callbacks_prev = _item->callbacks_prev; if (_item->
callbacks_prev) _item->callbacks_prev->callbacks_next =
 _item->callbacks_next; else { do { if ((__builtin_expect(
!!(!(*_head == _item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("*_head == _item"), "../src/network/netdev/netdev.c", 117,
 __PRETTY_FUNCTION__); } while (0); *_head = _item->callbacks_next
; } _item->callbacks_next = _item->callbacks_prev = ((void
*)0); } while (0);
118                link_unref(callback->link);
119                free(callback);
120        }
121}
122 
123static void netdev_free(NetDev *netdev) {
124        if (!netdev)
125                return;
126 
127        netdev_cancel_callbacks(netdev);
128 
129        if (netdev->ifname && netdev->manager)
130                hashmap_remove(netdev->manager->netdevs, netdev->ifname);
131 
132        free(netdev->filename);
133 
134        free(netdev->description);
135        free(netdev->ifname);
136        free(netdev->mac);
137 
138        condition_free_list(netdev->match_host);
139        condition_free_list(netdev->match_virt);
140        condition_free_list(netdev->match_kernel_cmdline);
141        condition_free_list(netdev->match_kernel_version);
142        condition_free_list(netdev->match_arch);
143 
144        /* Invoke the per-kind done() destructor, but only if the state field is initialized. We conditionalize that
145         * because we parse .netdev files twice: once to determine the kind (with a short, minimal NetDev structure
146         * allocation, with no room for per-kind fields), and once to read the kind's properties (with a full,
147         * comprehensive NetDev structure allocation with enough space for whatever the specific kind needs). Now, in
148         * the first case we shouldn't try to destruct the per-kind NetDev fields on destruction, in the second case we
149         * should. We use the state field to discern the two cases: it's _NETDEV_STATE_INVALID on the first "raw"
150         * call. */
151        if (netdev->state != _NETDEV_STATE_INVALID &&
152            NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0)) &&
153            NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->done)
154                NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->done(netdev);
155 
156        free(netdev);
157}
158 
159NetDev *netdev_unref(NetDev *netdev) {
160        if (netdev && (-- netdev->n_ref <= 0))
161                netdev_free(netdev);
162 
163        return NULL((void*)0);
164}
165 
166NetDev *netdev_ref(NetDev *netdev) {
167        if (netdev)
168                assert_se(++ netdev->n_ref >= 2)do { if ((__builtin_expect(!!(!(++ netdev->n_ref >= 2))
,0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("++ netdev->n_ref >= 2"
), "../src/network/netdev/netdev.c", 168, __PRETTY_FUNCTION__
); } while (0);
169 
170        return netdev;
171}
172 
173void netdev_drop(NetDev *netdev) {
174        if (!netdev || netdev->state == NETDEV_STATE_LINGER)
175                return;
176 
177        netdev->state = NETDEV_STATE_LINGER;
178 
179        log_netdev_debug(netdev, "netdev removed")({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 179, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "netdev removed") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((7))), 0, "../src/network/netdev/netdev.c"
, 179, __func__, "netdev removed"); });
180 
181        netdev_cancel_callbacks(netdev);
182 
183        netdev_unref(netdev);
184 
185        return;
186}
187 
188int netdev_get(Manager *manager, const char *name, NetDev **ret) {
189        NetDev *netdev;
190 
191        assert(manager)do { if ((__builtin_expect(!!(!(manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("manager"), "../src/network/netdev/netdev.c"
, 191, __PRETTY_FUNCTION__); } while (0);
192        assert(name)do { if ((__builtin_expect(!!(!(name)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("name"), "../src/network/netdev/netdev.c"
, 192, __PRETTY_FUNCTION__); } while (0);
193        assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/network/netdev/netdev.c"
, 193, __PRETTY_FUNCTION__); } while (0);
194 
195        netdev = hashmap_get(manager->netdevs, name);
196        if (!netdev) {
197                *ret = NULL((void*)0);
198                return -ENOENT2;
199        }
200 
201        *ret = netdev;
202 
203        return 0;
204}
205 
206static int netdev_enter_failed(NetDev *netdev) {
207        netdev->state = NETDEV_STATE_FAILED;
208 
209        netdev_cancel_callbacks(netdev);
210 
211        return 0;
212}
213 
214static int netdev_enslave_ready(NetDev *netdev, Link* link, sd_netlink_message_handler_t callback) {
215        _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *req = NULL((void*)0);
216        int r;
217 
218        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 218, __PRETTY_FUNCTION__); } while (0);
219        assert(netdev->state == NETDEV_STATE_READY)do { if ((__builtin_expect(!!(!(netdev->state == NETDEV_STATE_READY
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->state == NETDEV_STATE_READY"
), "../src/network/netdev/netdev.c", 219, __PRETTY_FUNCTION__
); } while (0);
220        assert(netdev->manager)do { if ((__builtin_expect(!!(!(netdev->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev->manager"), "../src/network/netdev/netdev.c"
, 220, __PRETTY_FUNCTION__); } while (0);
221        assert(netdev->manager->rtnl)do { if ((__builtin_expect(!!(!(netdev->manager->rtnl))
,0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->manager->rtnl"
), "../src/network/netdev/netdev.c", 221, __PRETTY_FUNCTION__
); } while (0);
222        assert(IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
 ((unused)) char _static_assert__macros_need_to_be_extended[20
 - sizeof((int[]){NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF
})/sizeof(int)]; switch(netdev->kind) { case NETDEV_KIND_BRIDGE
: case NETDEV_KIND_BOND: case NETDEV_KIND_VRF: _found = 1; break
; default: break; } _found; }))),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF)"
), "../src/network/netdev/netdev.c", 222, __PRETTY_FUNCTION__
); } while (0);
223        assert(link)do { if ((__builtin_expect(!!(!(link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("link"), "../src/network/netdev/netdev.c"
, 223, __PRETTY_FUNCTION__); } while (0);
224        assert(callback)do { if ((__builtin_expect(!!(!(callback)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("callback"), "../src/network/netdev/netdev.c"
, 224, __PRETTY_FUNCTION__); } while (0);
225 
226        if (link->flags & IFF_UPIFF_UP && netdev->kind == NETDEV_KIND_BOND) {
227                log_netdev_debug(netdev, "Link '%s' was up when attempting to enslave it. Bringing link down.", link->ifname)({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 227, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Link '%s' was up when attempting to enslave it. Bringing link down."
, link->ifname) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((7))), 0, "../src/network/netdev/netdev.c", 227, __func__
, "Link '%s' was up when attempting to enslave it. Bringing link down."
, link->ifname); });
228                r = link_down(link);
229                if (r < 0)
230                        return log_netdev_error_errno(netdev, r, "Could not bring link down: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 230, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not bring link down: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 230, __func__, "Could not bring link down: %m"
); });
231        }
232 
233        r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_SETLINKRTM_SETLINK, link->ifindex);
234        if (r < 0)
235                return log_netdev_error_errno(netdev, r, "Could not allocate RTM_SETLINK message: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 235, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not allocate RTM_SETLINK message: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 235, __func__, "Could not allocate RTM_SETLINK message: %m"
); });
236 
237        r = sd_netlink_message_append_u32(req, IFLA_MASTERIFLA_MASTER, netdev->ifindex);
238        if (r < 0)
239                return log_netdev_error_errno(netdev, r, "Could not append IFLA_MASTER attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 239, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_MASTER attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 239, __func__, "Could not append IFLA_MASTER attribute: %m"
); });
240 
241        r = sd_netlink_call_async(netdev->manager->rtnl, req, callback, link, 0, NULL((void*)0));
242        if (r < 0)
243                return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 243, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not send rtnetlink message: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 243, __func__, "Could not send rtnetlink message: %m"
); });
244 
245        link_ref(link);
246 
247        log_netdev_debug(netdev, "Enslaving link '%s'", link->ifname)({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 247, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Enslaving link '%s'"
, link->ifname) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((7))), 0, "../src/network/netdev/netdev.c", 247, __func__
, "Enslaving link '%s'", link->ifname); });
248 
249        return 0;
250}
251 
252static int netdev_enter_ready(NetDev *netdev) {
253        netdev_join_callback *callback, *callback_next;
254        int r;
255 
256        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 256, __PRETTY_FUNCTION__); } while (0);
257        assert(netdev->ifname)do { if ((__builtin_expect(!!(!(netdev->ifname)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev->ifname"), "../src/network/netdev/netdev.c"
, 257, __PRETTY_FUNCTION__); } while (0);
258 
259        if (netdev->state != NETDEV_STATE_CREATING)
260                return 0;
261 
262        netdev->state = NETDEV_STATE_READY;
263 
264        log_netdev_info(netdev, "netdev ready")({ const NetDev *_n = (netdev); _n ? log_object_internal(6, 0
, "../src/network/netdev/netdev.c", 264, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "netdev ready") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((6))), 0, "../src/network/netdev/netdev.c"
, 264, __func__, "netdev ready"); });
265 
266        LIST_FOREACH_SAFE(callbacks, callback, callback_next, netdev->callbacks)for ((callback) = (netdev->callbacks); (callback) &&
 (((callback_next) = (callback)->callbacks_next), 1); (callback
) = (callback_next)) {
267                /* enslave the links that were attempted to be enslaved before the
268                 * link was ready */
269                r = netdev_enslave_ready(netdev, callback->link, callback->callback);
270                if (r < 0)
271                        return r;
272 
273                LIST_REMOVE(callbacks, netdev->callbacks, callback)do { typeof(*(netdev->callbacks)) **_head = &(netdev->
callbacks), *_item = (callback); do { if ((__builtin_expect(!
!(!(_item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, (
"_item"), "../src/network/netdev/netdev.c", 273, __PRETTY_FUNCTION__
); } while (0); if (_item->callbacks_next) _item->callbacks_next
->callbacks_prev = _item->callbacks_prev; if (_item->
callbacks_prev) _item->callbacks_prev->callbacks_next =
 _item->callbacks_next; else { do { if ((__builtin_expect(
!!(!(*_head == _item)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD
, ("*_head == _item"), "../src/network/netdev/netdev.c", 273,
 __PRETTY_FUNCTION__); } while (0); *_head = _item->callbacks_next
; } _item->callbacks_next = _item->callbacks_prev = ((void
*)0); } while (0);
274                link_unref(callback->link);
275                free(callback);
276        }
277 
278        if (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->post_create)
279                NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->post_create(netdev, NULL((void*)0), NULL((void*)0));
280 
281        return 0;
282}
283 
284/* callback for netdev's created without a backing Link */
285static int netdev_create_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata) {
286        _cleanup_(netdev_unrefp)__attribute__((cleanup(netdev_unrefp))) NetDev *netdev = userdata;
287        int r;
288 
289        assert(netdev->state != _NETDEV_STATE_INVALID)do { if ((__builtin_expect(!!(!(netdev->state != _NETDEV_STATE_INVALID
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->state != _NETDEV_STATE_INVALID"
), "../src/network/netdev/netdev.c", 289, __PRETTY_FUNCTION__
); } while (0);
290 
291        r = sd_netlink_message_get_errno(m);
292        if (r == -EEXIST17)
293                log_netdev_info(netdev, "netdev exists, using existing without changing its parameters")({ const NetDev *_n = (netdev); _n ? log_object_internal(6, 0
, "../src/network/netdev/netdev.c", 293, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "netdev exists, using existing without changing its parameters"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((6
))), 0, "../src/network/netdev/netdev.c", 293, __func__, "netdev exists, using existing without changing its parameters"
); });
294        else if (r < 0) {
295                log_netdev_warning_errno(netdev, r, "netdev could not be created: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(4, r
, "../src/network/netdev/netdev.c", 295, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "netdev could not be created: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((4
))), r, "../src/network/netdev/netdev.c", 295, __func__, "netdev could not be created: %m"
); });
296                netdev_drop(netdev);
297 
298                return 1;
299        }
300 
301        log_netdev_debug(netdev, "Created")({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 301, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Created") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((7))), 0, "../src/network/netdev/netdev.c"
, 301, __func__, "Created"); });
302 
303        return 1;
304}
305 
306int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback) {
307        int r;
308 
309        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 309, __PRETTY_FUNCTION__); } while (0);
310        assert(netdev->manager)do { if ((__builtin_expect(!!(!(netdev->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev->manager"), "../src/network/netdev/netdev.c"
, 310, __PRETTY_FUNCTION__); } while (0);
311        assert(netdev->manager->rtnl)do { if ((__builtin_expect(!!(!(netdev->manager->rtnl))
,0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->manager->rtnl"
), "../src/network/netdev/netdev.c", 311, __PRETTY_FUNCTION__
); } while (0);
312        assert(IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF))do { if ((__builtin_expect(!!(!(({ _Bool _found = 0; static __attribute__
 ((unused)) char _static_assert__macros_need_to_be_extended[20
 - sizeof((int[]){NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF
})/sizeof(int)]; switch(netdev->kind) { case NETDEV_KIND_BRIDGE
: case NETDEV_KIND_BOND: case NETDEV_KIND_VRF: _found = 1; break
; default: break; } _found; }))),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("IN_SET(netdev->kind, NETDEV_KIND_BRIDGE, NETDEV_KIND_BOND, NETDEV_KIND_VRF)"
), "../src/network/netdev/netdev.c", 312, __PRETTY_FUNCTION__
); } while (0);
313 
314        if (netdev->state == NETDEV_STATE_READY) {
315                r = netdev_enslave_ready(netdev, link, callback);
316                if (r < 0)
317                        return r;
318        } else if (IN_SET(netdev->state, NETDEV_STATE_LINGER, NETDEV_STATE_FAILED)({ _Bool _found = 0; static __attribute__ ((unused)) char _static_assert__macros_need_to_be_extended
[20 - sizeof((int[]){NETDEV_STATE_LINGER, NETDEV_STATE_FAILED
})/sizeof(int)]; switch(netdev->state) { case NETDEV_STATE_LINGER
: case NETDEV_STATE_FAILED: _found = 1; break; default: break
; } _found; })) {
319                _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *m = NULL((void*)0);
320 
321                r = rtnl_message_new_synthetic_error(netdev->manager->rtnl, -ENODEV19, 0, &m);
322                if (r >= 0)
323                        callback(netdev->manager->rtnl, m, link);
324        } else {
325                /* the netdev is not yet read, save this request for when it is */
326                netdev_join_callback *cb;
327 
328                cb = new0(netdev_join_callback, 1)((netdev_join_callback*) calloc((1), sizeof(netdev_join_callback
)));
329                if (!cb)
330                        return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/network/netdev/netdev.c"
, 330, __func__);
331 
332                cb->callback = callback;
333                cb->link = link;
334                link_ref(link);
335 
336                LIST_PREPEND(callbacks, netdev->callbacks, cb)do { typeof(*(netdev->callbacks)) **_head = &(netdev->
callbacks), *_item = (cb); do { if ((__builtin_expect(!!(!(_item
)),0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("_item"),
 "../src/network/netdev/netdev.c", 336, __PRETTY_FUNCTION__);
 } while (0); if ((_item->callbacks_next = *_head)) _item->
callbacks_next->callbacks_prev = _item; _item->callbacks_prev
 = ((void*)0); *_head = _item; } while (0);
337 
338                log_netdev_debug(netdev, "Will enslave '%s', when ready", link->ifname)({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 338, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Will enslave '%s', when ready"
, link->ifname) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((7))), 0, "../src/network/netdev/netdev.c", 338, __func__
, "Will enslave '%s', when ready", link->ifname); });
339        }
340 
341        return 0;
342}
343 
344int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *message) {
345        uint16_t type;
346        const char *kind;
347        const char *received_kind;
348        const char *received_name;
349        int r, ifindex;
350 
351        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 351, __PRETTY_FUNCTION__); } while (0);
352        assert(message)do { if ((__builtin_expect(!!(!(message)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("message"), "../src/network/netdev/netdev.c"
, 352, __PRETTY_FUNCTION__); } while (0);
353 
354        r = sd_netlink_message_get_type(message, &type);
355        if (r < 0)
356                return log_netdev_error_errno(netdev, r, "Could not get rtnl message type: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 356, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get rtnl message type: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 356, __func__, "Could not get rtnl message type: %m"
); });
357 
358        if (type != RTM_NEWLINKRTM_NEWLINK) {
359                log_netdev_error(netdev, "Cannot set ifindex from unexpected rtnl message type.")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 359, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Cannot set ifindex from unexpected rtnl message type."
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), 0, "../src/network/netdev/netdev.c", 359, __func__, "Cannot set ifindex from unexpected rtnl message type."
); });
360                return -EINVAL22;
361        }
362 
363        r = sd_rtnl_message_link_get_ifindex(message, &ifindex);
364        if (r < 0) {
365                log_netdev_error_errno(netdev, r, "Could not get ifindex: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 365, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get ifindex: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 365, __func__, "Could not get ifindex: %m"
); });
366                netdev_enter_failed(netdev);
367                return r;
368        } else if (ifindex <= 0) {
369                log_netdev_error(netdev, "Got invalid ifindex: %d", ifindex)({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 369, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Got invalid ifindex: %d"
, ifindex) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((3))), 0, "../src/network/netdev/netdev.c", 369, __func__
, "Got invalid ifindex: %d", ifindex); });
370                netdev_enter_failed(netdev);
371                return -EINVAL22;
372        }
373 
374        if (netdev->ifindex > 0) {
375                if (netdev->ifindex != ifindex) {
376                        log_netdev_error(netdev, "Could not set ifindex to %d, already set to %d",({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 377, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not set ifindex to %d, already set to %d"
, ifindex, netdev->ifindex) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((3))), 0, "../src/network/netdev/netdev.c", 377
, __func__, "Could not set ifindex to %d, already set to %d",
 ifindex, netdev->ifindex); })
377                                         ifindex, netdev->ifindex)({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 377, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not set ifindex to %d, already set to %d"
, ifindex, netdev->ifindex) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((3))), 0, "../src/network/netdev/netdev.c", 377
, __func__, "Could not set ifindex to %d, already set to %d",
 ifindex, netdev->ifindex); });
378                        netdev_enter_failed(netdev);
379                        return -EEXIST17;
380                } else
381                        /* ifindex already set to the same for this netdev */
382                        return 0;
383        }
384 
385        r = sd_netlink_message_read_string(message, IFLA_IFNAME, &received_name);
386        if (r < 0)
387                return log_netdev_error_errno(netdev, r, "Could not get IFNAME: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 387, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get IFNAME: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 387, __func__, "Could not get IFNAME: %m"
); });
388 
389        if (!streq(netdev->ifname, received_name)(strcmp((netdev->ifname),(received_name)) == 0)) {
390                log_netdev_error(netdev, "Received newlink with wrong IFNAME %s", received_name)({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 390, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Received newlink with wrong IFNAME %s"
, received_name) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((3))), 0, "../src/network/netdev/netdev.c", 390, __func__
, "Received newlink with wrong IFNAME %s", received_name); });
391                netdev_enter_failed(netdev);
392                return r;
393        }
394 
395        r = sd_netlink_message_enter_container(message, IFLA_LINKINFOIFLA_LINKINFO);
396        if (r < 0)
397                return log_netdev_error_errno(netdev, r, "Could not get LINKINFO: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 397, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get LINKINFO: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 397, __func__, "Could not get LINKINFO: %m"
); });
398 
399        r = sd_netlink_message_read_string(message, IFLA_INFO_KIND, &received_kind);
400        if (r < 0)
401                return log_netdev_error_errno(netdev, r, "Could not get KIND: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 401, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get KIND: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 401, __func__, "Could not get KIND: %m"
); });
402 
403        r = sd_netlink_message_exit_container(message);
404        if (r < 0)
405                return log_netdev_error_errno(netdev, r, "Could not exit container: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 405, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not exit container: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 405, __func__, "Could not exit container: %m"
); });
406 
407        if (netdev->kind == NETDEV_KIND_TAP)
408                /* the kernel does not distinguish between tun and tap */
409                kind = "tun";
410        else {
411                kind = netdev_kind_to_string(netdev->kind);
412                if (!kind) {
413                        log_netdev_error(netdev, "Could not get kind")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 413, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not get kind"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), 0, "../src/network/netdev/netdev.c", 413, __func__, "Could not get kind"
); });
414                        netdev_enter_failed(netdev);
415                        return -EINVAL22;
416                }
417        }
418 
419        if (!streq(kind, received_kind)(strcmp((kind),(received_kind)) == 0)) {
420                log_netdev_error(netdev,({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 422, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Received newlink with wrong KIND %s, "
 "expected %s", received_kind, kind) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((3))), 0, "../src/network/netdev/netdev.c", 422
, __func__, "Received newlink with wrong KIND %s, " "expected %s"
, received_kind, kind); })
421                                 "Received newlink with wrong KIND %s, "({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 422, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Received newlink with wrong KIND %s, "
 "expected %s", received_kind, kind) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((3))), 0, "../src/network/netdev/netdev.c", 422
, __func__, "Received newlink with wrong KIND %s, " "expected %s"
, received_kind, kind); })
422                                 "expected %s", received_kind, kind)({ const NetDev *_n = (netdev); _n ? log_object_internal(3, 0
, "../src/network/netdev/netdev.c", 422, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Received newlink with wrong KIND %s, "
 "expected %s", received_kind, kind) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((3))), 0, "../src/network/netdev/netdev.c", 422
, __func__, "Received newlink with wrong KIND %s, " "expected %s"
, received_kind, kind); });
423                netdev_enter_failed(netdev);
424                return r;
425        }
426 
427        netdev->ifindex = ifindex;
428 
429        log_netdev_debug(netdev, "netdev has index %d", netdev->ifindex)({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 429, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "netdev has index %d"
, netdev->ifindex) : log_internal_realm(((LOG_REALM_SYSTEMD
) << 10 | ((7))), 0, "../src/network/netdev/netdev.c", 429
, __func__, "netdev has index %d", netdev->ifindex); });
430 
431        netdev_enter_ready(netdev);
432 
433        return 0;
434}
435 
436#define HASH_KEY((const sd_id128_t) { .bytes = { 0x52, 0xe1, 0x45, 0xbd, 0x00
, 0x6f, 0x29, 0x96, 0x21, 0xc6, 0x30, 0x6d, 0x83, 0x71, 0x04,
 0x48 }}) SD_ID128_MAKE(52,e1,45,bd,00,6f,29,96,21,c6,30,6d,83,71,04,48)((const sd_id128_t) { .bytes = { 0x52, 0xe1, 0x45, 0xbd, 0x00
, 0x6f, 0x29, 0x96, 0x21, 0xc6, 0x30, 0x6d, 0x83, 0x71, 0x04,
 0x48 }})
437 
438int netdev_get_mac(const char *ifname, struct ether_addr **ret) {
439        _cleanup_free___attribute__((cleanup(freep))) struct ether_addr *mac = NULL((void*)0);
440        uint64_t result;
441        size_t l, sz;
442        uint8_t *v;
443        int r;
444 
445        assert(ifname)do { if ((__builtin_expect(!!(!(ifname)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ifname"), "../src/network/netdev/netdev.c"
, 445, __PRETTY_FUNCTION__); } while (0);
44
←
Assuming 'ifname' is non-null→
45
←
Taking false branch→
46
←
Loop condition is false.  Exiting loop→
446        assert(ret)do { if ((__builtin_expect(!!(!(ret)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("ret"), "../src/network/netdev/netdev.c"
, 446, __PRETTY_FUNCTION__); } while (0);
47
←
Taking false branch→
48
←
Loop condition is false.  Exiting loop→
447 
448        mac = new0(struct ether_addr, 1)((struct ether_addr*) calloc((1), sizeof(struct ether_addr)));
49
←
Memory is allocated→
449        if (!mac)
50
←
Assuming 'mac' is non-null→
51
←
Taking false branch→
450                return -ENOMEM12;
451 
452        l = strlen(ifname);
453        sz = sizeof(sd_id128_t) + l;
454        v = alloca(sz)__builtin_alloca (sz);
455 
456        /* fetch some persistent data unique to the machine */
457        r = sd_id128_get_machine((sd_id128_t*) v);
458        if (r < 0)
52
←
Assuming 'r' is < 0→
53
←
Taking true branch→
459                return r;
54
←
Potential leak of memory pointed to by 'mac'
460 
461        /* combine with some data unique (on this machine) to this
462         * netdev */
463        memcpy(v + sizeof(sd_id128_t), ifname, l);
464 
465        /* Let's hash the host machine ID plus the container name. We
466         * use a fixed, but originally randomly created hash key here. */
467        result = siphash24(v, sz, HASH_KEY((const sd_id128_t) { .bytes = { 0x52, 0xe1, 0x45, 0xbd, 0x00
, 0x6f, 0x29, 0x96, 0x21, 0xc6, 0x30, 0x6d, 0x83, 0x71, 0x04,
 0x48 }}).bytes);
468 
469        assert_cc(ETH_ALEN <= sizeof(result))GCC diagnostic push
; GCC diagnostic ignored "-Wdeclaration-after-statement"

; struct _assert_struct_12 { char x[(6 <= sizeof(result))
 ? 0 : -1]; }; GCC diagnostic pop
;
470        memcpy(mac->ether_addr_octet, &result, ETH_ALEN6);
471 
472        /* see eth_random_addr in the kernel */
473        mac->ether_addr_octet[0] &= 0xfe;        /* clear multicast bit */
474        mac->ether_addr_octet[0] |= 0x02;        /* set local assignment bit (IEEE802) */
475 
476        *ret = TAKE_PTR(mac)({ typeof(mac) _ptr_ = (mac); (mac) = ((void*)0); _ptr_; });
477 
478        return 0;
479}
480 
481static int netdev_create(NetDev *netdev, Link *link,
482                         sd_netlink_message_handler_t callback) {
483        int r;
484 
485        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 485, __PRETTY_FUNCTION__); } while (0);
486        assert(!link || callback)do { if ((__builtin_expect(!!(!(!link || callback)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("!link || callback"), "../src/network/netdev/netdev.c"
, 486, __PRETTY_FUNCTION__); } while (0);
487 
488        /* create netdev */
489        if (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->create) {
490                assert(!link)do { if ((__builtin_expect(!!(!(!link)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("!link"), "../src/network/netdev/netdev.c"
, 490, __PRETTY_FUNCTION__); } while (0);
491 
492                r = NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->create(netdev);
493                if (r < 0)
494                        return r;
495 
496                log_netdev_debug(netdev, "Created")({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 496, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Created") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((7))), 0, "../src/network/netdev/netdev.c"
, 496, __func__, "Created"); });
497        } else {
498                _cleanup_(sd_netlink_message_unrefp)__attribute__((cleanup(sd_netlink_message_unrefp))) sd_netlink_message *m = NULL((void*)0);
499 
500                r = sd_rtnl_message_new_link(netdev->manager->rtnl, &m, RTM_NEWLINKRTM_NEWLINK, 0);
501                if (r < 0)
502                        return log_netdev_error_errno(netdev, r, "Could not allocate RTM_NEWLINK message: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 502, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not allocate RTM_NEWLINK message: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 502, __func__, "Could not allocate RTM_NEWLINK message: %m"
); });
503 
504                r = sd_netlink_message_append_string(m, IFLA_IFNAME, netdev->ifname);
505                if (r < 0)
506                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_IFNAME, attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 506, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_IFNAME, attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 506, __func__, "Could not append IFLA_IFNAME, attribute: %m"
); });
507 
508                if (netdev->mac) {
509                        r = sd_netlink_message_append_ether_addr(m, IFLA_ADDRESS, netdev->mac);
510                        if (r < 0)
511                                return log_netdev_error_errno(netdev, r, "Could not append IFLA_ADDRESS attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 511, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_ADDRESS attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 511, __func__, "Could not append IFLA_ADDRESS attribute: %m"
); });
512                }
513 
514                if (netdev->mtu) {
515                        r = sd_netlink_message_append_u32(m, IFLA_MTU, netdev->mtu);
516                        if (r < 0)
517                                return log_netdev_error_errno(netdev, r, "Could not append IFLA_MTU attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 517, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_MTU attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 517, __func__, "Could not append IFLA_MTU attribute: %m"
); });
518                }
519 
520                if (link) {
521                        r = sd_netlink_message_append_u32(m, IFLA_LINK, link->ifindex);
522                        if (r < 0)
523                                return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINK attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 523, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_LINK attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 523, __func__, "Could not append IFLA_LINK attribute: %m"
); });
524                }
525 
526                r = sd_netlink_message_open_container(m, IFLA_LINKINFOIFLA_LINKINFO);
527                if (r < 0)
528                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 528, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_LINKINFO attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 528, __func__, "Could not append IFLA_LINKINFO attribute: %m"
); });
529 
530                r = sd_netlink_message_open_container_union(m, IFLA_INFO_DATA, netdev_kind_to_string(netdev->kind));
531                if (r < 0)
532                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 532, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_INFO_DATA attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 532, __func__, "Could not append IFLA_INFO_DATA attribute: %m"
); });
533 
534                if (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->fill_message_create) {
535                        r = NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->fill_message_create(netdev, link, m);
536                        if (r < 0)
537                                return r;
538                }
539 
540                r = sd_netlink_message_close_container(m);
541                if (r < 0)
542                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_INFO_DATA attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 542, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_INFO_DATA attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 542, __func__, "Could not append IFLA_INFO_DATA attribute: %m"
); });
543 
544                r = sd_netlink_message_close_container(m);
545                if (r < 0)
546                        return log_netdev_error_errno(netdev, r, "Could not append IFLA_LINKINFO attribute: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 546, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not append IFLA_LINKINFO attribute: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 546, __func__, "Could not append IFLA_LINKINFO attribute: %m"
); });
547 
548                if (link) {
549                        r = sd_netlink_call_async(netdev->manager->rtnl, m, callback, link, 0, NULL((void*)0));
550                        if (r < 0)
551                                return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 551, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not send rtnetlink message: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 551, __func__, "Could not send rtnetlink message: %m"
); });
552 
553                        link_ref(link);
554                } else {
555                        r = sd_netlink_call_async(netdev->manager->rtnl, m, netdev_create_handler, netdev, 0, NULL((void*)0));
556                        if (r < 0)
557                                return log_netdev_error_errno(netdev, r, "Could not send rtnetlink message: %m")({ const NetDev *_n = (netdev); _n ? log_object_internal(3, r
, "../src/network/netdev/netdev.c", 557, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Could not send rtnetlink message: %m"
) : log_internal_realm(((LOG_REALM_SYSTEMD) << 10 | ((3
))), r, "../src/network/netdev/netdev.c", 557, __func__, "Could not send rtnetlink message: %m"
); });
558 
559                        netdev_ref(netdev);
560                }
561 
562                netdev->state = NETDEV_STATE_CREATING;
563 
564                log_netdev_debug(netdev, "Creating")({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 564, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "Creating") : log_internal_realm
(((LOG_REALM_SYSTEMD) << 10 | ((7))), 0, "../src/network/netdev/netdev.c"
, 564, __func__, "Creating"); });
565        }
566 
567        return 0;
568}
569 
570/* the callback must be called, possibly after a timeout, as otherwise the Link will hang */
571int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback) {
572        int r;
573 
574        assert(netdev)do { if ((__builtin_expect(!!(!(netdev)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev"), "../src/network/netdev/netdev.c"
, 574, __PRETTY_FUNCTION__); } while (0);
575        assert(netdev->manager)do { if ((__builtin_expect(!!(!(netdev->manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("netdev->manager"), "../src/network/netdev/netdev.c"
, 575, __PRETTY_FUNCTION__); } while (0);
576        assert(netdev->manager->rtnl)do { if ((__builtin_expect(!!(!(netdev->manager->rtnl))
,0))) log_assert_failed_realm(LOG_REALM_SYSTEMD, ("netdev->manager->rtnl"
), "../src/network/netdev/netdev.c", 576, __PRETTY_FUNCTION__
); } while (0);
577        assert(NETDEV_VTABLE(netdev))do { if ((__builtin_expect(!!(!(((netdev)->kind != _NETDEV_KIND_INVALID
 ? netdev_vtable[(netdev)->kind] : ((void*)0)))),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("NETDEV_VTABLE(netdev)"), "../src/network/netdev/netdev.c"
, 577, __PRETTY_FUNCTION__); } while (0);
578 
579        switch (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->create_type) {
580        case NETDEV_CREATE_MASTER:
581                r = netdev_enslave(netdev, link, callback);
582                if (r < 0)
583                        return r;
584 
585                break;
586        case NETDEV_CREATE_STACKED:
587                r = netdev_create(netdev, link, callback);
588                if (r < 0)
589                        return r;
590 
591                break;
592        default:
593                assert_not_reached("Can not join independent netdev")do { log_assert_failed_unreachable_realm(LOG_REALM_SYSTEMD, (
"Can not join independent netdev"), "../src/network/netdev/netdev.c"
, 593, __PRETTY_FUNCTION__); } while (0);
594        }
595 
596        return 0;
597}
598 
599static int netdev_load_one(Manager *manager, const char *filename) {
600        _cleanup_(netdev_unrefp)__attribute__((cleanup(netdev_unrefp))) NetDev *netdev_raw = NULL((void*)0), *netdev = NULL((void*)0);
601        _cleanup_fclose___attribute__((cleanup(fclosep))) FILE *file = NULL((void*)0);
602        const char *dropin_dirname;
603        bool_Bool independent = false0;
604        int r;
605 
606        assert(manager)do { if ((__builtin_expect(!!(!(manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("manager"), "../src/network/netdev/netdev.c"
, 606, __PRETTY_FUNCTION__); } while (0);
1
Assuming 'manager' is non-null→
2
←
Taking false branch→
3
←
Loop condition is false.  Exiting loop→
607        assert(filename)do { if ((__builtin_expect(!!(!(filename)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("filename"), "../src/network/netdev/netdev.c"
, 607, __PRETTY_FUNCTION__); } while (0);
4
←
Assuming 'filename' is non-null→
5
←
Taking false branch→
6
←
Loop condition is false.  Exiting loop→
608 
609        file = fopen(filename, "re");
610        if (!file) {
7
←
Assuming 'file' is non-null→
8
←
Taking false branch→
611                if (errno(*__errno_location ()) == ENOENT2)
612                        return 0;
613 
614                return -errno(*__errno_location ());
615        }
616 
617        if (null_or_empty_fd(fileno(file))) {
9
←
Assuming the condition is false→
10
←
Taking false branch→
618                log_debug("Skipping empty file: %s", filename)({ int _level = (((7))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/netdev/netdev.c", 618, __func__, "Skipping empty file: %s"
, filename) : -abs(_e); });
619                return 0;
620        }
621 
622        netdev_raw = new0(NetDev, 1)((NetDev*) calloc((1), sizeof(NetDev)));
623        if (!netdev_raw)
11
←
Assuming 'netdev_raw' is non-null→
12
←
Taking false branch→
624                return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/network/netdev/netdev.c"
, 624, __func__);
625 
626        netdev_raw->n_ref = 1;
627        netdev_raw->kind = _NETDEV_KIND_INVALID;
628        netdev_raw->state = _NETDEV_STATE_INVALID; /* an invalid state means done() of the implementation won't be called on destruction */
629 
630        dropin_dirname = strjoina(basename(filename), ".d")({ const char *_appendees_[] = { basename(filename), ".d" }; char
 *_d_, *_p_; size_t _len_ = 0; size_t _i_; for (_i_ = 0; _i_ <
 __extension__ (__builtin_choose_expr( !__builtin_types_compatible_p
(typeof(_appendees_), typeof(&*(_appendees_))), sizeof(_appendees_
)/sizeof((_appendees_)[0]), ((void)0))) && _appendees_
[_i_]; _i_++) _len_ += strlen(_appendees_[_i_]); _p_ = _d_ = __builtin_alloca
 (_len_ + 1); for (_i_ = 0; _i_ < __extension__ (__builtin_choose_expr
( !__builtin_types_compatible_p(typeof(_appendees_), typeof(&
*(_appendees_))), sizeof(_appendees_)/sizeof((_appendees_)[0]
), ((void)0))) && _appendees_[_i_]; _i_++) _p_ = stpcpy
(_p_, _appendees_[_i_]); *_p_ = 0; _d_; });
13
←
Loop condition is false. Execution continues on line 630→
14
←
Loop condition is false. Execution continues on line 630→
631        r = config_parse_many(filename, network_dirs, dropin_dirname,
632                              "Match\0NetDev\0",
633                              config_item_perf_lookup, network_netdev_gperf_lookup,
634                              CONFIG_PARSE_WARN|CONFIG_PARSE_RELAXED, netdev_raw);
635        if (r < 0)
15
←
Assuming 'r' is >= 0→
16
←
Taking false branch→
636                return r;
637 
638        /* skip out early if configuration does not match the environment */
639        if (net_match_config(NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0),
17
←
Assuming the condition is false→
18
←
Taking false branch→
640                             netdev_raw->match_host, netdev_raw->match_virt,
641                             netdev_raw->match_kernel_cmdline, netdev_raw->match_kernel_version,
642                             netdev_raw->match_arch,
643                             NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0)) <= 0)
644                return 0;
645 
646        if (netdev_raw->kind == _NETDEV_KIND_INVALID) {
19
←
Assuming field 'kind' is not equal to _NETDEV_KIND_INVALID→
20
←
Taking false branch→
647                log_warning("NetDev has no Kind configured in %s. Ignoring", filename)({ int _level = (((4))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/netdev/netdev.c", 647, __func__, "NetDev has no Kind configured in %s. Ignoring"
, filename) : -abs(_e); });
648                return 0;
649        }
650 
651        if (!netdev_raw->ifname) {
21
←
Assuming field 'ifname' is non-null→
22
←
Taking false branch→
652                log_warning("NetDev without Name configured in %s. Ignoring", filename)({ int _level = (((4))), _e = ((0)), _realm = (LOG_REALM_SYSTEMD
); (log_get_max_level_realm(_realm) >= ((_level) & 0x07
)) ? log_internal_realm(((_realm) << 10 | (_level)), _e
, "../src/network/netdev/netdev.c", 652, __func__, "NetDev without Name configured in %s. Ignoring"
, filename) : -abs(_e); });
653                return 0;
654        }
655 
656        r = fseek(file, 0, SEEK_SET0);
657        if (r < 0)
23
←
Assuming 'r' is >= 0→
24
←
Taking false branch→
658                return -errno(*__errno_location ());
659 
660        netdev = malloc0(NETDEV_VTABLE(netdev_raw)->object_size)(calloc(1, (((netdev_raw)->kind != _NETDEV_KIND_INVALID ? netdev_vtable
[(netdev_raw)->kind] : ((void*)0))->object_size)));
25
←
'?' condition is true→
661        if (!netdev)
26
←
Assuming 'netdev' is non-null→
27
←
Taking false branch→
662                return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/network/netdev/netdev.c"
, 662, __func__);
663 
664        netdev->n_ref = 1;
665        netdev->manager = manager;
666        netdev->kind = netdev_raw->kind;
667        netdev->state = NETDEV_STATE_LOADING; /* we initialize the state here for the first time, so that done() will be called on destruction */
668 
669        if (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->init)
28
←
'?' condition is true→
29
←
Assuming field 'init' is null→
30
←
Taking false branch→
670                NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->init(netdev);
671 
672        r = config_parse(NULL((void*)0), filename, file,
673                         NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->sections,
31
←
'?' condition is true→
674                         config_item_perf_lookup, network_netdev_gperf_lookup,
675                         CONFIG_PARSE_WARN, netdev);
676        if (r < 0)
32
←
Assuming 'r' is >= 0→
33
←
Taking false branch→
677                return r;
678 
679        /* verify configuration */
680        if (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->config_verify) {
34
←
Assuming field 'kind' is not equal to _NETDEV_KIND_INVALID→
35
←
'?' condition is true→
36
←
Assuming field 'config_verify' is null→
37
←
Taking false branch→
681                r = NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->config_verify(netdev, filename);
682                if (r < 0)
683                        return 0;
684        }
685 
686        netdev->filename = strdup(filename);
687        if (!netdev->filename)
38
←
Assuming field 'filename' is non-null→
39
←
Taking false branch→
688                return log_oom()log_oom_internal(LOG_REALM_SYSTEMD, "../src/network/netdev/netdev.c"
, 688, __func__);
689 
690        if (!netdev->mac && netdev->kind != NETDEV_KIND_VLAN) {
40
←
Assuming field 'mac' is null→
41
←
Assuming field 'kind' is not equal to NETDEV_KIND_VLAN→
42
←
Taking true branch→
691                r = netdev_get_mac(netdev->ifname, &netdev->mac);
43
←
Calling 'netdev_get_mac'→
692                if (r < 0)
693                        return log_error_errno(r, "Failed to generate predictable MAC address for %s: %m", netdev->ifname)({ 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/netdev/netdev.c", 693, __func__, "Failed to generate predictable MAC address for %s: %m"
, netdev->ifname) : -abs(_e); });
694        }
695 
696        r = hashmap_put(netdev->manager->netdevs, netdev->ifname, netdev);
697        if (r < 0)
698                return r;
699 
700        LIST_HEAD_INIT(netdev->callbacks)do { (netdev->callbacks) = ((void*)0); } while (0);
701 
702        log_netdev_debug(netdev, "loaded %s", netdev_kind_to_string(netdev->kind))({ const NetDev *_n = (netdev); _n ? log_object_internal(7, 0
, "../src/network/netdev/netdev.c", 702, __func__, "INTERFACE="
, _n->ifname, ((void*)0), ((void*)0), "loaded %s", netdev_kind_to_string
(netdev->kind)) : log_internal_realm(((LOG_REALM_SYSTEMD) <<
 10 | ((7))), 0, "../src/network/netdev/netdev.c", 702, __func__
, "loaded %s", netdev_kind_to_string(netdev->kind)); });
703 
704        switch (NETDEV_VTABLE(netdev)((netdev)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(netdev
)->kind] : ((void*)0))->create_type) {
705        case NETDEV_CREATE_MASTER:
706        case NETDEV_CREATE_INDEPENDENT:
707                r = netdev_create(netdev, NULL((void*)0), NULL((void*)0));
708                if (r < 0)
709                        return r;
710 
711                break;
712        default:
713                break;
714        }
715 
716        switch (netdev->kind) {
717        case NETDEV_KIND_IPIP:
718                independent = IPIP(netdev)->independent;
719                break;
720        case NETDEV_KIND_GRE:
721                independent = GRE(netdev)->independent;
722                break;
723        case NETDEV_KIND_GRETAP:
724                independent = GRETAP(netdev)->independent;
725                break;
726        case NETDEV_KIND_IP6GRE:
727                independent = IP6GRE(netdev)->independent;
728                break;
729        case NETDEV_KIND_IP6GRETAP:
730                independent = IP6GRETAP(netdev)->independent;
731                break;
732        case NETDEV_KIND_SIT:
733                independent = SIT(netdev)->independent;
734                break;
735        case NETDEV_KIND_VTI:
736                independent = VTI(netdev)->independent;
737                break;
738        case NETDEV_KIND_VTI6:
739                independent = VTI6(netdev)->independent;
740                break;
741        case NETDEV_KIND_IP6TNL:
742                independent = IP6TNL(netdev)->independent;
743                break;
744        default:
745                break;
746        }
747 
748        if (independent) {
749                r = netdev_create(netdev, NULL((void*)0), NULL((void*)0));
750                if (r < 0)
751                        return r;
752        }
753 
754        netdev = NULL((void*)0);
755 
756        return 0;
757}
758 
759int netdev_load(Manager *manager) {
760        _cleanup_strv_free___attribute__((cleanup(strv_freep))) char **files = NULL((void*)0);
761        NetDev *netdev;
762        char **f;
763        int r;
764 
765        assert(manager)do { if ((__builtin_expect(!!(!(manager)),0))) log_assert_failed_realm
(LOG_REALM_SYSTEMD, ("manager"), "../src/network/netdev/netdev.c"
, 765, __PRETTY_FUNCTION__); } while (0);
766 
767        while ((netdev = hashmap_first(manager->netdevs)))
768                netdev_unref(netdev);
769 
770        r = conf_files_list_strv(&files, ".netdev", NULL((void*)0), 0, network_dirs);
771        if (r < 0)
772                return log_error_errno(r, "Failed to enumerate netdev files: %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/netdev/netdev.c", 772, __func__, "Failed to enumerate netdev files: %m"
) : -abs(_e); });
773 
774        STRV_FOREACH_BACKWARDS(f, files)for (f = ({ char **_l = files; _l ? _l + strv_length(_l) - 1U
 : ((void*)0); }); (files) && ((f) >= (files)); (f
)--) {
775                r = netdev_load_one(manager, *f);
776                if (r < 0)
777                        return r;
778        }
779 
780        return 0;
781}