Bug Summary

File:build-scan/../src/network/netdev/netdev.c
Warning:line 117, column 17
Use of memory after it is freed

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
10.1
'netdev' is non-null
 || !netdev->manager)
11
←
Assuming field 'manager' is non-null
→
12
←
Taking false branch
→
103 return;
104
105 rtnl_message_new_synthetic_error(netdev->manager->rtnl, -ENODEV19, 0, &m);
106
107 while ((callback = netdev->callbacks)) {
13
←
Loop condition is true. Entering loop body
→
24
←
Loop condition is true. Entering loop body
→
108 if (m
24.1
'm' is null
) {
14
←
Assuming 'm' is null
→
15
←
Taking false branch
→
25
←
Taking false branch
→
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);
16
←
Taking false branch
→
17
←
Loop condition is false. Exiting loop
→
18
←
Assuming field 'callbacks_next' is null
→
19
←
Taking false branch
→
20
←
Assuming field 'callbacks_prev' is non-null
→
21
←
Taking true branch
→
22
←
Loop condition is false. Exiting loop
→
26
←
Taking false branch
→
27
←
Loop condition is false. Exiting loop
→
28
←
Use of memory after it is freed
118 link_unref(callback->link);
119 free(callback);
23
←
Memory is released
→
120 }
121}
122
123static void netdev_free(NetDev *netdev) {
124 if (!netdev
8.1
'netdev' is non-null
)
9
←
Taking false branch
→
125 return;
126
127 netdev_cancel_callbacks(netdev);
10
←
Calling 'netdev_cancel_callbacks'
→
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
5.1
'netdev' is non-null
 && (-- netdev->n_ref <= 0))
6
←
Assuming the condition is true
→
7
←
Taking true branch
→
161 netdev_free(netdev);
8
←
Calling 'netdev_free'
→
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);
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);
447
448 mac = new0(struct ether_addr, 1)((struct ether_addr*) calloc((1), sizeof(struct ether_addr)));
449 if (!mac)
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)
459 return r;
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_10 { 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);
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);
608
609 file = fopen(filename, "re");
610 if (!file) {
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))) {
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)
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_; });
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)
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),
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) {
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) {
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)
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)));
661 if (!netdev)
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)
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,
674 config_item_perf_lookup, network_netdev_gperf_lookup,
675 CONFIG_PARSE_WARN, netdev);
676 if (r < 0)
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) {
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)
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) {
691 r = netdev_get_mac(netdev->ifname, &netdev->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);
1
Assuming 'manager' is non-null
→
2
←
Taking false branch
→
3
←
Loop condition is false. Exiting loop
→
766
767 while ((netdev = hashmap_first(manager->netdevs)))
4
←
Loop condition is true. Entering loop body
→
768 netdev_unref(netdev);
5
←
Calling 'netdev_unref'
→
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}