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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
a660c63c | 2 | |
d23965a6 | 3 | /* |
ad37f393 | 4 | * Predictable network interface device names based on: |
472780d8 KS |
5 | * - firmware/bios-provided index numbers for on-board devices |
6 | * - firmware-provided pci-express hotplug slot index number | |
7 | * - physical/geographical location of the hardware | |
8 | * - the interface's MAC address | |
9 | * | |
25da63b9 KS |
10 | * http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames |
11 | * | |
ad37f393 | 12 | * Two character prefixes based on the type of interface: |
ccddd104 | 13 | * en — Ethernet |
938d30aa | 14 | * ib — InfiniBand |
ccddd104 ZJS |
15 | * sl — serial line IP (slip) |
16 | * wl — wlan | |
17 | * ww — wwan | |
d23965a6 | 18 | * |
ad37f393 | 19 | * Type of names: |
ccddd104 | 20 | * b<number> — BCMA bus core number |
ecc11cf7 VM |
21 | * c<bus_id> — bus id of a grouped CCW or CCW device, |
22 | * with all leading zeros stripped [s390] | |
4887b656 JP |
23 | * o<index>[n<phys_port_name>|d<dev_port>] |
24 | * — on-board device index number | |
25 | * s<slot>[f<function>][n<phys_port_name>|d<dev_port>] | |
26 | * — hotplug slot index number | |
ccddd104 | 27 | * x<MAC> — MAC address |
4887b656 | 28 | * [P<domain>]p<bus>s<slot>[f<function>][n<phys_port_name>|d<dev_port>] |
ccddd104 | 29 | * — PCI geographical location |
214daa72 | 30 | * [P<domain>]p<bus>s<slot>[f<function>][u<port>][..][c<config>][i<interface>] |
ccddd104 | 31 | * — USB port number chain |
765a00b9 | 32 | * v<slot> - VIO slot number (IBM PowerVM) |
c20e6de8 | 33 | * a<vendor><model>i<instance> — Platform bus ACPI instance id |
472780d8 | 34 | * |
ad37f393 | 35 | * All multi-function PCI devices will carry the [f<function>] number in the |
472780d8 | 36 | * device name, including the function 0 device. |
d23965a6 | 37 | * |
eefe36e6 EG |
38 | * SR-IOV virtual devices are named based on the name of the parent interface, |
39 | * with a suffix of "v<N>", where <N> is the virtual device number. | |
40 | * | |
214daa72 SM |
41 | * When using PCI geography, The PCI domain is only prepended when it is not 0. |
42 | * | |
0d6ce923 KS |
43 | * For USB devices the full chain of port numbers of hubs is composed. If the |
44 | * name gets longer than the maximum number of 15 characters, the name is not | |
45 | * exported. | |
46 | * The usual USB configuration == 1 and interface == 0 values are suppressed. | |
ad37f393 | 47 | * |
a8eaaee7 | 48 | * PCI Ethernet card with firmware index "1": |
0035597a | 49 | * ID_NET_NAME_ONBOARD=eno1 |
f610d6de KS |
50 | * ID_NET_NAME_ONBOARD_LABEL=Ethernet Port 1 |
51 | * | |
a8eaaee7 | 52 | * PCI Ethernet card in hotplug slot with firmware index number: |
f610d6de KS |
53 | * /sys/devices/pci0000:00/0000:00:1c.3/0000:05:00.0/net/ens1 |
54 | * ID_NET_NAME_MAC=enx000000000466 | |
55 | * ID_NET_NAME_PATH=enp5s0 | |
de892aea | 56 | * ID_NET_NAME_SLOT=ens1 |
f610d6de | 57 | * |
a8eaaee7 | 58 | * PCI Ethernet multi-function card with 2 ports: |
decd634e KS |
59 | * /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.0/net/enp2s0f0 |
60 | * ID_NET_NAME_MAC=enx78e7d1ea46da | |
61 | * ID_NET_NAME_PATH=enp2s0f0 | |
62 | * /sys/devices/pci0000:00/0000:00:1c.0/0000:02:00.1/net/enp2s0f1 | |
63 | * ID_NET_NAME_MAC=enx78e7d1ea46dc | |
64 | * ID_NET_NAME_PATH=enp2s0f1 | |
65 | * | |
f610d6de KS |
66 | * PCI wlan card: |
67 | * /sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlp3s0 | |
68 | * ID_NET_NAME_MAC=wlx0024d7e31130 | |
69 | * ID_NET_NAME_PATH=wlp3s0 | |
70 | * | |
938d30aa AM |
71 | * PCI IB host adapter with 2 ports: |
72 | * /sys/devices/pci0000:00/0000:00:03.0/0000:15:00.0/net/ibp21s0f0 | |
73 | * ID_NET_NAME_PATH=ibp21s0f0 | |
74 | * /sys/devices/pci0000:00/0000:00:03.0/0000:15:00.1/net/ibp21s0f1 | |
75 | * ID_NET_NAME_PATH=ibp21s0f1 | |
76 | * | |
f610d6de KS |
77 | * USB built-in 3G modem: |
78 | * /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.4/2-1.4:1.6/net/wwp0s29u1u4i6 | |
79 | * ID_NET_NAME_MAC=wwx028037ec0200 | |
80 | * ID_NET_NAME_PATH=wwp0s29u1u4i6 | |
81 | * | |
82 | * USB Android phone: | |
83 | * /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/net/enp0s29u1u2 | |
84 | * ID_NET_NAME_MAC=enxd626b3450fb5 | |
85 | * ID_NET_NAME_PATH=enp0s29u1u2 | |
ecc11cf7 VM |
86 | * |
87 | * s390 grouped CCW interface: | |
88 | * /sys/devices/css0/0.0.0007/0.0.f5f0/group_device/net/encf5f0 | |
89 | * ID_NET_NAME_MAC=enx026d3c00000a | |
90 | * ID_NET_NAME_PATH=encf5f0 | |
d23965a6 KS |
91 | */ |
92 | ||
a660c63c | 93 | #include <errno.h> |
07630cea | 94 | #include <fcntl.h> |
02609440 | 95 | #include <net/if.h> |
19aa72f7 | 96 | #include <net/if_arp.h> |
07630cea LP |
97 | #include <stdarg.h> |
98 | #include <stdio.h> | |
99 | #include <stdlib.h> | |
100 | #include <string.h> | |
101 | #include <unistd.h> | |
de892aea | 102 | #include <linux/pci_regs.h> |
a660c63c | 103 | |
07a26e42 | 104 | #include "alloc-util.h" |
8fb3f009 | 105 | #include "dirent-util.h" |
3ffd4af2 | 106 | #include "fd-util.h" |
a5c32cff | 107 | #include "fileio.h" |
609948c7 | 108 | #include "fs-util.h" |
35b35190 | 109 | #include "naming-scheme.h" |
9009d3b5 | 110 | #include "parse-util.h" |
f7e81fd9 | 111 | #include "proc-cmdline.h" |
d054f0a4 | 112 | #include "stdio-util.h" |
07630cea | 113 | #include "string-util.h" |
07a26e42 YW |
114 | #include "strv.h" |
115 | #include "strxcpyx.h" | |
116 | #include "udev-builtin.h" | |
a660c63c | 117 | |
6c1e69f9 LP |
118 | #define ONBOARD_INDEX_MAX (16*1024-1) |
119 | ||
02609440 KS |
120 | enum netname_type{ |
121 | NET_UNDEF, | |
122 | NET_PCI, | |
123 | NET_USB, | |
984c4348 | 124 | NET_BCMA, |
e3d56334 | 125 | NET_VIRTIO, |
ecc11cf7 | 126 | NET_CCW, |
765a00b9 | 127 | NET_VIO, |
c20e6de8 | 128 | NET_PLATFORM, |
02609440 KS |
129 | }; |
130 | ||
131 | struct netnames { | |
132 | enum netname_type type; | |
133 | ||
134 | uint8_t mac[6]; | |
135 | bool mac_valid; | |
136 | ||
09d04a74 | 137 | sd_device *pcidev; |
02609440 KS |
138 | char pci_slot[IFNAMSIZ]; |
139 | char pci_path[IFNAMSIZ]; | |
140 | char pci_onboard[IFNAMSIZ]; | |
141 | const char *pci_onboard_label; | |
142 | ||
02609440 | 143 | char usb_ports[IFNAMSIZ]; |
984c4348 | 144 | char bcma_core[IFNAMSIZ]; |
ecc11cf7 | 145 | char ccw_busid[IFNAMSIZ]; |
765a00b9 | 146 | char vio_slot[IFNAMSIZ]; |
c20e6de8 | 147 | char platform_path[IFNAMSIZ]; |
02609440 KS |
148 | }; |
149 | ||
609948c7 | 150 | struct virtfn_info { |
09d04a74 | 151 | sd_device *physfn_pcidev; |
609948c7 SH |
152 | char suffix[IFNAMSIZ]; |
153 | }; | |
154 | ||
ecc11cf7 | 155 | /* skip intermediate virtio devices */ |
09d04a74 YW |
156 | static sd_device *skip_virtio(sd_device *dev) { |
157 | sd_device *parent; | |
ecc11cf7 VM |
158 | |
159 | /* there can only ever be one virtio bus per parent device, so we can | |
09d04a74 YW |
160 | * safely ignore any virtio buses. see |
161 | * http://lists.linuxfoundation.org/pipermail/virtualization/2015-August/030331.html */ | |
162 | for (parent = dev; parent; ) { | |
163 | const char *subsystem; | |
164 | ||
165 | if (sd_device_get_subsystem(parent, &subsystem) < 0) | |
166 | break; | |
167 | ||
168 | if (!streq(subsystem, "virtio")) | |
169 | break; | |
170 | ||
171 | if (sd_device_get_parent(parent, &parent) < 0) | |
172 | return NULL; | |
173 | } | |
174 | ||
ecc11cf7 VM |
175 | return parent; |
176 | } | |
177 | ||
09d04a74 YW |
178 | static int get_virtfn_info(sd_device *dev, struct netnames *names, struct virtfn_info *ret) { |
179 | _cleanup_(sd_device_unrefp) sd_device *physfn_pcidev = NULL; | |
180 | const char *physfn_link_file, *syspath; | |
609948c7 SH |
181 | _cleanup_free_ char *physfn_pci_syspath = NULL; |
182 | _cleanup_free_ char *virtfn_pci_syspath = NULL; | |
183 | struct dirent *dent; | |
184 | _cleanup_closedir_ DIR *dir = NULL; | |
09d04a74 | 185 | char suffix[IFNAMSIZ]; |
609948c7 SH |
186 | int r; |
187 | ||
09d04a74 YW |
188 | assert(dev); |
189 | assert(names); | |
190 | assert(ret); | |
191 | ||
192 | r = sd_device_get_syspath(names->pcidev, &syspath); | |
193 | if (r < 0) | |
194 | return r; | |
195 | ||
609948c7 | 196 | /* Check if this is a virtual function. */ |
09d04a74 | 197 | physfn_link_file = strjoina(syspath, "/physfn"); |
609948c7 SH |
198 | r = chase_symlinks(physfn_link_file, NULL, 0, &physfn_pci_syspath); |
199 | if (r < 0) | |
200 | return r; | |
201 | ||
202 | /* Get physical function's pci device. */ | |
09d04a74 YW |
203 | r = sd_device_new_from_syspath(&physfn_pcidev, physfn_pci_syspath); |
204 | if (r < 0) | |
205 | return r; | |
609948c7 SH |
206 | |
207 | /* Find the virtual function number by finding the right virtfn link. */ | |
208 | dir = opendir(physfn_pci_syspath); | |
09d04a74 YW |
209 | if (!dir) |
210 | return -errno; | |
211 | ||
609948c7 SH |
212 | FOREACH_DIRENT_ALL(dent, dir, break) { |
213 | _cleanup_free_ char *virtfn_link_file = NULL; | |
09d04a74 | 214 | |
609948c7 SH |
215 | if (!startswith(dent->d_name, "virtfn")) |
216 | continue; | |
09d04a74 | 217 | |
609948c7 | 218 | virtfn_link_file = strjoin(physfn_pci_syspath, "/", dent->d_name); |
09d04a74 YW |
219 | if (!virtfn_link_file) |
220 | return -ENOMEM; | |
221 | ||
609948c7 SH |
222 | if (chase_symlinks(virtfn_link_file, NULL, 0, &virtfn_pci_syspath) < 0) |
223 | continue; | |
09d04a74 YW |
224 | |
225 | if (streq(syspath, virtfn_pci_syspath)) { | |
226 | if (!snprintf_ok(suffix, sizeof(suffix), "v%s", &dent->d_name[6])) | |
227 | return -ENOENT; | |
228 | ||
609948c7 SH |
229 | break; |
230 | } | |
231 | } | |
09d04a74 YW |
232 | if (isempty(suffix)) |
233 | return -ENOENT; | |
234 | ||
235 | ret->physfn_pcidev = TAKE_PTR(physfn_pcidev); | |
236 | strncpy(ret->suffix, suffix, sizeof(ret->suffix)); | |
609948c7 | 237 | |
09d04a74 | 238 | return 0; |
609948c7 SH |
239 | } |
240 | ||
0035597a | 241 | /* retrieve on-board index number and label from firmware */ |
09d04a74 | 242 | static int dev_pci_onboard(sd_device *dev, struct netnames *names) { |
614a8274 | 243 | unsigned long idx, dev_port = 0; |
09d04a74 | 244 | const char *attr, *port_name = NULL; |
c0a43734 TG |
245 | size_t l; |
246 | char *s; | |
d81186ef | 247 | int r; |
a660c63c | 248 | |
ccddd104 | 249 | /* ACPI _DSM — device specific method for naming a PCI or PCI Express device */ |
09d04a74 YW |
250 | if (sd_device_get_sysattr_value(names->pcidev, "acpi_index", &attr) < 0) { |
251 | /* SMBIOS type 41 — Onboard Devices Extended Information */ | |
252 | r = sd_device_get_sysattr_value(names->pcidev, "index", &attr); | |
253 | if (r < 0) | |
254 | return r; | |
255 | } | |
c0a43734 | 256 | |
d81186ef JH |
257 | r = safe_atolu(attr, &idx); |
258 | if (r < 0) | |
259 | return r; | |
f7e81fd9 LP |
260 | if (idx == 0 && !naming_scheme_has(NAMING_ZERO_ACPI_INDEX)) |
261 | return -EINVAL; | |
c0a43734 | 262 | |
6c1e69f9 LP |
263 | /* Some BIOSes report rubbish indexes that are excessively high (2^24-1 is an index VMware likes to report for |
264 | * example). Let's define a cut-off where we don't consider the index reliable anymore. We pick some arbitrary | |
265 | * cut-off, which is somewhere beyond the realistic number of physical network interface a system might | |
266 | * have. Ideally the kernel would already filter his crap for us, but it doesn't currently. */ | |
267 | if (idx > ONBOARD_INDEX_MAX) | |
268 | return -ENOENT; | |
269 | ||
309b578d | 270 | /* kernel provided port index for multiple ports on a single PCI function */ |
09d04a74 | 271 | if (sd_device_get_sysattr_value(dev, "dev_port", &attr) >= 0) |
b8e8823e | 272 | dev_port = strtoul(attr, NULL, 10); |
c0a43734 | 273 | |
4887b656 | 274 | /* kernel provided front panel port name for multiple port PCI device */ |
09d04a74 | 275 | (void) sd_device_get_sysattr_value(dev, "phys_port_name", &port_name); |
4887b656 | 276 | |
c0a43734 TG |
277 | s = names->pci_onboard; |
278 | l = sizeof(names->pci_onboard); | |
614a8274 | 279 | l = strpcpyf(&s, l, "o%lu", idx); |
4887b656 JP |
280 | if (port_name) |
281 | l = strpcpyf(&s, l, "n%s", port_name); | |
282 | else if (dev_port > 0) | |
614a8274 | 283 | l = strpcpyf(&s, l, "d%lu", dev_port); |
c0a43734 TG |
284 | if (l == 0) |
285 | names->pci_onboard[0] = '\0'; | |
d23965a6 | 286 | |
09d04a74 YW |
287 | if (sd_device_get_sysattr_value(names->pcidev, "label", &names->pci_onboard_label) < 0) |
288 | names->pci_onboard_label = NULL; | |
c0a43734 | 289 | |
0035597a KS |
290 | return 0; |
291 | } | |
d23965a6 | 292 | |
137661d8 | 293 | /* read the 256 bytes PCI configuration space to check the multi-function bit */ |
09d04a74 | 294 | static bool is_pci_multifunction(sd_device *dev) { |
0454229c | 295 | _cleanup_close_ int fd = -1; |
09d04a74 | 296 | const char *filename, *syspath; |
1cb5d1f3 | 297 | uint8_t config[64]; |
de892aea | 298 | |
09d04a74 YW |
299 | if (sd_device_get_syspath(dev, &syspath) < 0) |
300 | return false; | |
301 | ||
302 | filename = strjoina(syspath, "/config"); | |
0454229c JM |
303 | fd = open(filename, O_RDONLY | O_CLOEXEC); |
304 | if (fd < 0) | |
1cb5d1f3 | 305 | return false; |
0454229c | 306 | if (read(fd, &config, sizeof(config)) != sizeof(config)) |
1cb5d1f3 | 307 | return false; |
de892aea KS |
308 | |
309 | /* bit 0-6 header type, bit 7 multi/single function device */ | |
09d04a74 | 310 | return config[PCI_HEADER_TYPE] & 0x80; |
de892aea KS |
311 | } |
312 | ||
09d04a74 YW |
313 | static bool is_pci_ari_enabled(sd_device *dev) { |
314 | const char *a; | |
315 | ||
316 | if (sd_device_get_sysattr_value(dev, "ari_enabled", &a) < 0) | |
317 | return false; | |
318 | ||
319 | return streq(a, "1"); | |
6bc04997 SH |
320 | } |
321 | ||
09d04a74 | 322 | static int dev_pci_slot(sd_device *dev, struct netnames *names) { |
614a8274 LP |
323 | unsigned long dev_port = 0; |
324 | unsigned domain, bus, slot, func, hotplug_slot = 0; | |
1328f66a KS |
325 | size_t l; |
326 | char *s; | |
09d04a74 YW |
327 | const char *sysname, *attr, *port_name = NULL, *syspath; |
328 | _cleanup_(sd_device_unrefp) sd_device *pci = NULL; | |
329 | sd_device *hotplug_slot_dev; | |
e68eedbb | 330 | char slots[PATH_MAX]; |
b5dd8148 | 331 | _cleanup_closedir_ DIR *dir = NULL; |
0035597a | 332 | struct dirent *dent; |
09d04a74 | 333 | int r; |
0035597a | 334 | |
09d04a74 YW |
335 | r = sd_device_get_sysname(names->pcidev, &sysname); |
336 | if (r < 0) | |
337 | return r; | |
338 | ||
339 | if (sscanf(sysname, "%x:%x:%x.%u", &domain, &bus, &slot, &func) != 4) | |
0035597a | 340 | return -ENOENT; |
09d04a74 | 341 | |
f7e81fd9 LP |
342 | if (naming_scheme_has(NAMING_NPAR_ARI) && |
343 | is_pci_ari_enabled(names->pcidev)) | |
6bc04997 SH |
344 | /* ARI devices support up to 256 functions on a single device ("slot"), and interpret the |
345 | * traditional 5-bit slot and 3-bit function number as a single 8-bit function number, | |
346 | * where the slot makes up the upper 5 bits. */ | |
347 | func += slot * 8; | |
1328f66a | 348 | |
309b578d | 349 | /* kernel provided port index for multiple ports on a single PCI function */ |
09d04a74 | 350 | if (sd_device_get_sysattr_value(dev, "dev_port", &attr) >= 0) { |
b8e8823e | 351 | dev_port = strtoul(attr, NULL, 10); |
cdd63a03 AM |
352 | /* With older kernels IP-over-InfiniBand network interfaces sometimes erroneously |
353 | * provide the port number in the 'dev_id' sysfs attribute instead of 'dev_port', | |
354 | * which thus stays initialized as 0. */ | |
09d04a74 YW |
355 | if (dev_port == 0 && |
356 | sd_device_get_sysattr_value(dev, "type", &attr) >= 0) { | |
357 | unsigned long type; | |
358 | ||
359 | type = strtoul(attr, NULL, 10); | |
360 | if (type == ARPHRD_INFINIBAND && | |
361 | sd_device_get_sysattr_value(dev, "dev_id", &attr) >= 0) | |
362 | dev_port = strtoul(attr, NULL, 16); | |
cdd63a03 AM |
363 | } |
364 | } | |
1328f66a | 365 | |
1b2a7d92 | 366 | /* kernel provided front panel port name for multi-port PCI device */ |
09d04a74 | 367 | (void) sd_device_get_sysattr_value(dev, "phys_port_name", &port_name); |
4887b656 | 368 | |
1328f66a KS |
369 | /* compose a name based on the raw kernel's PCI bus, slot numbers */ |
370 | s = names->pci_path; | |
214daa72 SM |
371 | l = sizeof(names->pci_path); |
372 | if (domain > 0) | |
1fa2f38f ZJS |
373 | l = strpcpyf(&s, l, "P%u", domain); |
374 | l = strpcpyf(&s, l, "p%us%u", bus, slot); | |
1328f66a | 375 | if (func > 0 || is_pci_multifunction(names->pcidev)) |
1fa2f38f | 376 | l = strpcpyf(&s, l, "f%u", func); |
4887b656 JP |
377 | if (port_name) |
378 | l = strpcpyf(&s, l, "n%s", port_name); | |
379 | else if (dev_port > 0) | |
614a8274 | 380 | l = strpcpyf(&s, l, "d%lu", dev_port); |
1328f66a KS |
381 | if (l == 0) |
382 | names->pci_path[0] = '\0'; | |
d23965a6 | 383 | |
1b2a7d92 | 384 | /* ACPI _SUN — slot user number */ |
09d04a74 YW |
385 | r = sd_device_new_from_subsystem_sysname(&pci, "subsystem", "pci"); |
386 | if (r < 0) | |
387 | return r; | |
e68eedbb | 388 | |
09d04a74 YW |
389 | r = sd_device_get_syspath(pci, &syspath); |
390 | if (r < 0) | |
391 | return r; | |
392 | if (!snprintf_ok(slots, sizeof slots, "%s/slots", syspath)) | |
73fc96c8 ZJS |
393 | return -ENAMETOOLONG; |
394 | ||
0035597a | 395 | dir = opendir(slots); |
cc5bbdb2 ZJS |
396 | if (!dir) |
397 | return -errno; | |
d23965a6 | 398 | |
9009d3b5 SH |
399 | hotplug_slot_dev = names->pcidev; |
400 | while (hotplug_slot_dev) { | |
09d04a74 YW |
401 | if (sd_device_get_sysname(hotplug_slot_dev, &sysname) < 0) |
402 | continue; | |
403 | ||
9009d3b5 SH |
404 | FOREACH_DIRENT_ALL(dent, dir, break) { |
405 | unsigned i; | |
9009d3b5 SH |
406 | char str[PATH_MAX]; |
407 | _cleanup_free_ char *address = NULL; | |
408 | ||
409 | if (dent->d_name[0] == '.') | |
410 | continue; | |
411 | r = safe_atou_full(dent->d_name, 10, &i); | |
09d04a74 | 412 | if (r < 0 || i <= 0) |
9009d3b5 SH |
413 | continue; |
414 | ||
09d04a74 | 415 | /* match slot address with device by stripping the function */ |
9009d3b5 | 416 | if (snprintf_ok(str, sizeof str, "%s/%s/address", slots, dent->d_name) && |
09d04a74 YW |
417 | read_one_line_file(str, &address) >= 0 && |
418 | startswith(sysname, address)) { | |
419 | hotplug_slot = i; | |
9009d3b5 | 420 | break; |
09d04a74 | 421 | } |
9009d3b5 | 422 | } |
0035597a KS |
423 | if (hotplug_slot > 0) |
424 | break; | |
09d04a74 YW |
425 | if (sd_device_get_parent_with_subsystem_devtype(hotplug_slot_dev, "pci", NULL, &hotplug_slot_dev) < 0) |
426 | break; | |
9009d3b5 | 427 | rewinddir(dir); |
0035597a | 428 | } |
d23965a6 | 429 | |
0035597a | 430 | if (hotplug_slot > 0) { |
1328f66a | 431 | s = names->pci_slot; |
214daa72 SM |
432 | l = sizeof(names->pci_slot); |
433 | if (domain > 0) | |
434 | l = strpcpyf(&s, l, "P%d", domain); | |
435 | l = strpcpyf(&s, l, "s%d", hotplug_slot); | |
1328f66a | 436 | if (func > 0 || is_pci_multifunction(names->pcidev)) |
d5a89d7d | 437 | l = strpcpyf(&s, l, "f%d", func); |
4887b656 JP |
438 | if (port_name) |
439 | l = strpcpyf(&s, l, "n%s", port_name); | |
440 | else if (dev_port > 0) | |
614a8274 | 441 | l = strpcpyf(&s, l, "d%lu", dev_port); |
1328f66a | 442 | if (l == 0) |
16f948cb | 443 | names->pci_slot[0] = '\0'; |
d23965a6 | 444 | } |
cc5bbdb2 ZJS |
445 | |
446 | return 0; | |
0035597a KS |
447 | } |
448 | ||
09d04a74 YW |
449 | static int names_vio(sd_device *dev, struct netnames *names) { |
450 | sd_device *parent; | |
765a00b9 | 451 | unsigned busid, slotid, ethid; |
09d04a74 YW |
452 | const char *syspath, *subsystem; |
453 | int r; | |
765a00b9 FB |
454 | |
455 | /* check if our direct parent is a VIO device with no other bus in-between */ | |
09d04a74 YW |
456 | r = sd_device_get_parent(dev, &parent); |
457 | if (r < 0) | |
458 | return r; | |
765a00b9 | 459 | |
09d04a74 YW |
460 | r = sd_device_get_subsystem(parent, &subsystem); |
461 | if (r < 0) | |
462 | return r; | |
463 | if (!streq("vio", subsystem)) | |
464 | return -ENOENT; | |
765a00b9 FB |
465 | |
466 | /* The devices' $DEVPATH number is tied to (virtual) hardware (slot id | |
467 | * selected in the HMC), thus this provides a reliable naming (e.g. | |
468 | * "/devices/vio/30000002/net/eth1"); we ignore the bus number, as | |
469 | * there should only ever be one bus, and then remove leading zeros. */ | |
09d04a74 YW |
470 | r = sd_device_get_syspath(dev, &syspath); |
471 | if (r < 0) | |
472 | return r; | |
765a00b9 FB |
473 | |
474 | if (sscanf(syspath, "/sys/devices/vio/%4x%4x/net/eth%u", &busid, &slotid, ðid) != 3) | |
475 | return -EINVAL; | |
476 | ||
477 | xsprintf(names->vio_slot, "v%u", slotid); | |
478 | names->type = NET_VIO; | |
479 | return 0; | |
480 | } | |
481 | ||
c20e6de8 DJL |
482 | #define _PLATFORM_TEST "/sys/devices/platform/vvvvPPPP" |
483 | #define _PLATFORM_PATTERN4 "/sys/devices/platform/%4s%4x:%2x/net/eth%u" | |
484 | #define _PLATFORM_PATTERN3 "/sys/devices/platform/%3s%4x:%2x/net/eth%u" | |
485 | ||
09d04a74 YW |
486 | static int names_platform(sd_device *dev, struct netnames *names, bool test) { |
487 | sd_device *parent; | |
c20e6de8 DJL |
488 | char vendor[5]; |
489 | unsigned model, instance, ethid; | |
09d04a74 YW |
490 | const char *syspath, *pattern, *validchars, *subsystem; |
491 | int r; | |
c20e6de8 DJL |
492 | |
493 | /* check if our direct parent is a platform device with no other bus in-between */ | |
09d04a74 YW |
494 | r = sd_device_get_parent(dev, &parent); |
495 | if (r < 0) | |
496 | return r; | |
497 | ||
498 | r = sd_device_get_subsystem(parent, &subsystem); | |
499 | if (r < 0) | |
500 | return r; | |
c20e6de8 | 501 | |
09d04a74 | 502 | if (!streq("platform", subsystem)) |
c20e6de8 DJL |
503 | return -ENOENT; |
504 | ||
09d04a74 YW |
505 | r = sd_device_get_syspath(dev, &syspath); |
506 | if (r < 0) | |
507 | return r; | |
c20e6de8 DJL |
508 | |
509 | /* syspath is too short, to have a valid ACPI instance */ | |
510 | if (strlen(syspath) < sizeof _PLATFORM_TEST) | |
511 | return -EINVAL; | |
512 | ||
513 | /* Vendor ID can be either PNP ID (3 chars A-Z) or ACPI ID (4 chars A-Z and numerals) */ | |
514 | if (syspath[sizeof _PLATFORM_TEST - 1] == ':') { | |
515 | pattern = _PLATFORM_PATTERN4; | |
516 | validchars = UPPERCASE_LETTERS DIGITS; | |
517 | } else { | |
518 | pattern = _PLATFORM_PATTERN3; | |
519 | validchars = UPPERCASE_LETTERS; | |
520 | } | |
521 | ||
522 | /* Platform devices are named after ACPI table match, and instance id | |
523 | * eg. "/sys/devices/platform/HISI00C2:00"); | |
524 | * The Vendor (3 or 4 char), followed by hexdecimal model number : instance id. | |
525 | */ | |
86a48fb6 LP |
526 | |
527 | #pragma GCC diagnostic push | |
528 | #pragma GCC diagnostic ignored "-Wformat-nonliteral" | |
c20e6de8 DJL |
529 | if (sscanf(syspath, pattern, vendor, &model, &instance, ðid) != 4) |
530 | return -EINVAL; | |
86a48fb6 | 531 | #pragma GCC diagnostic pop |
c20e6de8 DJL |
532 | |
533 | if (!in_charset(vendor, validchars)) | |
534 | return -ENOENT; | |
535 | ||
536 | ascii_strlower(vendor); | |
537 | ||
538 | xsprintf(names->platform_path, "a%s%xi%u", vendor, model, instance); | |
539 | names->type = NET_PLATFORM; | |
540 | return 0; | |
541 | } | |
542 | ||
09d04a74 YW |
543 | static int names_pci(sd_device *dev, struct netnames *names) { |
544 | sd_device *parent; | |
609948c7 SH |
545 | struct netnames vf_names = {}; |
546 | struct virtfn_info vf_info = {}; | |
09d04a74 YW |
547 | const char *subsystem; |
548 | int r; | |
0035597a | 549 | |
3b64e4d4 TG |
550 | assert(dev); |
551 | assert(names); | |
552 | ||
09d04a74 YW |
553 | r = sd_device_get_parent(dev, &parent); |
554 | if (r < 0) | |
555 | return r; | |
ecc11cf7 VM |
556 | /* skip virtio subsystem if present */ |
557 | parent = skip_virtio(parent); | |
54683f0f | 558 | |
02609440 KS |
559 | if (!parent) |
560 | return -ENOENT; | |
54683f0f | 561 | |
02609440 | 562 | /* check if our direct parent is a PCI device with no other bus in-between */ |
09d04a74 YW |
563 | if (sd_device_get_subsystem(parent, &subsystem) >= 0 && |
564 | streq("pci", subsystem)) { | |
02609440 KS |
565 | names->type = NET_PCI; |
566 | names->pcidev = parent; | |
567 | } else { | |
09d04a74 YW |
568 | r = sd_device_get_parent_with_subsystem_devtype(dev, "pci", NULL, &names->pcidev); |
569 | if (r < 0) | |
570 | return r; | |
02609440 | 571 | } |
609948c7 | 572 | |
f7e81fd9 LP |
573 | if (naming_scheme_has(NAMING_SR_IOV_V) && |
574 | get_virtfn_info(dev, names, &vf_info) >= 0) { | |
609948c7 SH |
575 | /* If this is an SR-IOV virtual device, get base name using physical device and add virtfn suffix. */ |
576 | vf_names.pcidev = vf_info.physfn_pcidev; | |
577 | dev_pci_onboard(dev, &vf_names); | |
578 | dev_pci_slot(dev, &vf_names); | |
579 | if (vf_names.pci_onboard[0]) | |
580 | if (strlen(vf_names.pci_onboard) + strlen(vf_info.suffix) < sizeof(names->pci_onboard)) | |
581 | strscpyl(names->pci_onboard, sizeof(names->pci_onboard), | |
582 | vf_names.pci_onboard, vf_info.suffix, NULL); | |
583 | if (vf_names.pci_slot[0]) | |
584 | if (strlen(vf_names.pci_slot) + strlen(vf_info.suffix) < sizeof(names->pci_slot)) | |
585 | strscpyl(names->pci_slot, sizeof(names->pci_slot), | |
586 | vf_names.pci_slot, vf_info.suffix, NULL); | |
587 | if (vf_names.pci_path[0]) | |
588 | if (strlen(vf_names.pci_path) + strlen(vf_info.suffix) < sizeof(names->pci_path)) | |
589 | strscpyl(names->pci_path, sizeof(names->pci_path), | |
590 | vf_names.pci_path, vf_info.suffix, NULL); | |
09d04a74 | 591 | sd_device_unref(vf_info.physfn_pcidev); |
609948c7 SH |
592 | } else { |
593 | dev_pci_onboard(dev, names); | |
594 | dev_pci_slot(dev, names); | |
595 | } | |
09d04a74 | 596 | |
02609440 KS |
597 | return 0; |
598 | } | |
599 | ||
09d04a74 YW |
600 | static int names_usb(sd_device *dev, struct netnames *names) { |
601 | sd_device *usbdev; | |
602 | char name[256], *ports, *config, *interf, *s; | |
603 | const char *sysname; | |
02609440 | 604 | size_t l; |
09d04a74 | 605 | int r; |
02609440 | 606 | |
3b64e4d4 TG |
607 | assert(dev); |
608 | assert(names); | |
609 | ||
09d04a74 YW |
610 | r = sd_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_interface", &usbdev); |
611 | if (r < 0) | |
612 | return r; | |
613 | ||
614 | r = sd_device_get_sysname(usbdev, &sysname); | |
615 | if (r < 0) | |
616 | return r; | |
0035597a | 617 | |
02609440 | 618 | /* get USB port number chain, configuration, interface */ |
09d04a74 | 619 | strscpy(name, sizeof(name), sysname); |
02609440 KS |
620 | s = strchr(name, '-'); |
621 | if (!s) | |
622 | return -EINVAL; | |
623 | ports = s+1; | |
624 | ||
625 | s = strchr(ports, ':'); | |
626 | if (!s) | |
627 | return -EINVAL; | |
628 | s[0] = '\0'; | |
629 | config = s+1; | |
630 | ||
631 | s = strchr(config, '.'); | |
632 | if (!s) | |
633 | return -EINVAL; | |
634 | s[0] = '\0'; | |
635 | interf = s+1; | |
636 | ||
f7340ab2 | 637 | /* prefix every port number in the chain with "u" */ |
02609440 KS |
638 | s = ports; |
639 | while ((s = strchr(s, '.'))) | |
640 | s[0] = 'u'; | |
641 | s = names->usb_ports; | |
d5a89d7d | 642 | l = strpcpyl(&s, sizeof(names->usb_ports), "u", ports, NULL); |
02609440 KS |
643 | |
644 | /* append USB config number, suppress the common config == 1 */ | |
645 | if (!streq(config, "1")) | |
d5a89d7d | 646 | l = strpcpyl(&s, sizeof(names->usb_ports), "c", config, NULL); |
02609440 KS |
647 | |
648 | /* append USB interface number, suppress the interface == 0 */ | |
649 | if (!streq(interf, "0")) | |
d5a89d7d | 650 | l = strpcpyl(&s, sizeof(names->usb_ports), "i", interf, NULL); |
02609440 KS |
651 | if (l == 0) |
652 | return -ENAMETOOLONG; | |
653 | ||
654 | names->type = NET_USB; | |
d23965a6 KS |
655 | return 0; |
656 | } | |
657 | ||
09d04a74 YW |
658 | static int names_bcma(sd_device *dev, struct netnames *names) { |
659 | sd_device *bcmadev; | |
14cb109d | 660 | unsigned core; |
09d04a74 YW |
661 | const char *sysname; |
662 | int r; | |
984c4348 | 663 | |
3b64e4d4 TG |
664 | assert(dev); |
665 | assert(names); | |
666 | ||
09d04a74 YW |
667 | r = sd_device_get_parent_with_subsystem_devtype(dev, "bcma", NULL, &bcmadev); |
668 | if (r < 0) | |
669 | return r; | |
670 | ||
671 | r = sd_device_get_sysname(bcmadev, &sysname); | |
672 | if (r < 0) | |
673 | return r; | |
984c4348 | 674 | |
f4ddacbd | 675 | /* bus num:core num */ |
09d04a74 | 676 | if (sscanf(sysname, "bcma%*u:%u", &core) != 1) |
984c4348 | 677 | return -EINVAL; |
f4ddacbd KS |
678 | /* suppress the common core == 0 */ |
679 | if (core > 0) | |
d054f0a4 | 680 | xsprintf(names->bcma_core, "b%u", core); |
f4ddacbd | 681 | |
984c4348 KS |
682 | names->type = NET_BCMA; |
683 | return 0; | |
684 | } | |
685 | ||
09d04a74 YW |
686 | static int names_ccw(sd_device *dev, struct netnames *names) { |
687 | sd_device *cdev; | |
3877500c | 688 | const char *bus_id, *subsys; |
e0d4a0ac | 689 | size_t bus_id_len; |
ecc11cf7 | 690 | size_t bus_id_start; |
09d04a74 | 691 | int r; |
e0d4a0ac | 692 | |
3b64e4d4 TG |
693 | assert(dev); |
694 | assert(names); | |
695 | ||
e0d4a0ac | 696 | /* Retrieve the associated CCW device */ |
09d04a74 YW |
697 | r = sd_device_get_parent(dev, &cdev); |
698 | if (r < 0) | |
699 | return r; | |
700 | ||
ecc11cf7 VM |
701 | /* skip virtio subsystem if present */ |
702 | cdev = skip_virtio(cdev); | |
e0d4a0ac HB |
703 | if (!cdev) |
704 | return -ENOENT; | |
705 | ||
09d04a74 YW |
706 | r = sd_device_get_subsystem(cdev, &subsys); |
707 | if (r < 0) | |
708 | return r; | |
709 | ||
ecc11cf7 | 710 | /* Network devices are either single or grouped CCW devices */ |
09d04a74 | 711 | if (!STR_IN_SET(subsys, "ccwgroup", "ccw")) |
e0d4a0ac HB |
712 | return -ENOENT; |
713 | ||
ecc11cf7 | 714 | /* Retrieve bus-ID of the CCW device. The bus-ID uniquely |
e0d4a0ac HB |
715 | * identifies the network device on the Linux on System z channel |
716 | * subsystem. Note that the bus-ID contains lowercase characters. | |
717 | */ | |
09d04a74 YW |
718 | r = sd_device_get_sysname(cdev, &bus_id); |
719 | if (r < 0) | |
720 | return r; | |
e0d4a0ac HB |
721 | |
722 | /* Check the length of the bus-ID. Rely on that the kernel provides | |
723 | * a correct bus-ID; alternatively, improve this check and parse and | |
724 | * verify each bus-ID part... | |
725 | */ | |
726 | bus_id_len = strlen(bus_id); | |
977f65f0 | 727 | if (!IN_SET(bus_id_len, 8, 9)) |
e0d4a0ac HB |
728 | return -EINVAL; |
729 | ||
0037a669 DJL |
730 | /* Strip leading zeros from the bus id for aesthetic purposes. This |
731 | * keeps the ccw names stable, yet much shorter in general case of | |
732 | * bus_id 0.0.0600 -> 600. This is similar to e.g. how PCI domain is | |
ecc11cf7 | 733 | * not prepended when it is zero. Preserve the last 0 for 0.0.0000. |
0037a669 | 734 | */ |
ecc11cf7 VM |
735 | bus_id_start = strspn(bus_id, ".0"); |
736 | bus_id += bus_id_start < bus_id_len ? bus_id_start : bus_id_len - 1; | |
0037a669 | 737 | |
e0d4a0ac | 738 | /* Store the CCW bus-ID for use as network device name */ |
73fc96c8 | 739 | if (snprintf_ok(names->ccw_busid, sizeof(names->ccw_busid), "c%s", bus_id)) |
ecc11cf7 | 740 | names->type = NET_CCW; |
73fc96c8 | 741 | |
e0d4a0ac HB |
742 | return 0; |
743 | } | |
744 | ||
09d04a74 | 745 | static int names_mac(sd_device *dev, struct netnames *names) { |
d23965a6 | 746 | const char *s; |
614a8274 | 747 | unsigned long i; |
14cb109d | 748 | unsigned a1, a2, a3, a4, a5, a6; |
09d04a74 | 749 | int r; |
d23965a6 | 750 | |
a0d415da AM |
751 | /* Some kinds of devices tend to have hardware addresses |
752 | * that are impossible to use in an iface name. | |
753 | */ | |
09d04a74 YW |
754 | r = sd_device_get_sysattr_value(dev, "type", &s); |
755 | if (r < 0) | |
756 | return r; | |
757 | ||
a0d415da AM |
758 | i = strtoul(s, NULL, 0); |
759 | switch (i) { | |
760 | /* The persistent part of a hardware address of an InfiniBand NIC | |
761 | * is 8 bytes long. We cannot fit this much in an iface name. | |
762 | */ | |
763 | case ARPHRD_INFINIBAND: | |
764 | return -EINVAL; | |
765 | default: | |
766 | break; | |
767 | } | |
768 | ||
d23965a6 | 769 | /* check for NET_ADDR_PERM, skip random MAC addresses */ |
09d04a74 YW |
770 | r = sd_device_get_sysattr_value(dev, "addr_assign_type", &s); |
771 | if (r < 0) | |
772 | return r; | |
d23965a6 KS |
773 | i = strtoul(s, NULL, 0); |
774 | if (i != 0) | |
775 | return 0; | |
776 | ||
09d04a74 YW |
777 | r = sd_device_get_sysattr_value(dev, "address", &s); |
778 | if (r < 0) | |
779 | return r; | |
d23965a6 KS |
780 | if (sscanf(s, "%x:%x:%x:%x:%x:%x", &a1, &a2, &a3, &a4, &a5, &a6) != 6) |
781 | return -EINVAL; | |
782 | ||
783 | /* skip empty MAC addresses */ | |
784 | if (a1 + a2 + a3 + a4 + a5 + a6 == 0) | |
a660c63c KS |
785 | return -EINVAL; |
786 | ||
02609440 KS |
787 | names->mac[0] = a1; |
788 | names->mac[1] = a2; | |
789 | names->mac[2] = a3; | |
790 | names->mac[3] = a4; | |
791 | names->mac[4] = a5; | |
792 | names->mac[5] = a6; | |
793 | names->mac_valid = true; | |
794 | return 0; | |
795 | } | |
d23965a6 | 796 | |
02609440 | 797 | /* IEEE Organizationally Unique Identifier vendor string */ |
09d04a74 | 798 | static int ieee_oui(sd_device *dev, struct netnames *names, bool test) { |
971e7fb6 | 799 | char str[32]; |
02609440 | 800 | |
971e7fb6 | 801 | if (!names->mac_valid) |
02609440 KS |
802 | return -ENOENT; |
803 | /* skip commonly misused 00:00:00 (Xerox) prefix */ | |
804 | if (memcmp(names->mac, "\0\0\0", 3) == 0) | |
805 | return -EINVAL; | |
d054f0a4 DM |
806 | xsprintf(str, "OUI:%02X%02X%02X%02X%02X%02X", names->mac[0], |
807 | names->mac[1], names->mac[2], names->mac[3], names->mac[4], | |
808 | names->mac[5]); | |
09d04a74 | 809 | udev_builtin_hwdb_lookup(dev, NULL, str, NULL, test); |
02609440 | 810 | return 0; |
a660c63c KS |
811 | } |
812 | ||
3fc2e9a2 | 813 | static int builtin_net_id(sd_device *dev, int argc, char *argv[], bool test) { |
09d04a74 | 814 | const char *s, *p, *devtype, *prefix = "en"; |
b92bea5d | 815 | struct netnames names = {}; |
09d04a74 YW |
816 | unsigned long i; |
817 | int r; | |
d23965a6 | 818 | |
09d04a74 YW |
819 | /* handle only ARPHRD_ETHER, ARPHRD_SLIP and ARPHRD_INFINIBAND devices */ |
820 | r = sd_device_get_sysattr_value(dev, "type", &s); | |
821 | if (r < 0) | |
d354690e | 822 | return r; |
09d04a74 | 823 | |
d23965a6 | 824 | i = strtoul(s, NULL, 0); |
e0d4a0ac | 825 | switch (i) { |
19aa72f7 | 826 | case ARPHRD_ETHER: |
e0d4a0ac HB |
827 | prefix = "en"; |
828 | break; | |
938d30aa | 829 | case ARPHRD_INFINIBAND: |
f7e81fd9 LP |
830 | if (naming_scheme_has(NAMING_INFINIBAND)) |
831 | prefix = "ib"; | |
832 | else | |
833 | return 0; | |
938d30aa | 834 | break; |
19aa72f7 | 835 | case ARPHRD_SLIP: |
e0d4a0ac HB |
836 | prefix = "sl"; |
837 | break; | |
838 | default: | |
d23965a6 | 839 | return 0; |
e0d4a0ac | 840 | } |
d23965a6 | 841 | |
72bc96f0 | 842 | /* skip stacked devices, like VLANs, ... */ |
09d04a74 YW |
843 | r = sd_device_get_sysattr_value(dev, "ifindex", &s); |
844 | if (r < 0) | |
d354690e | 845 | return r; |
09d04a74 YW |
846 | r = sd_device_get_sysattr_value(dev, "iflink", &p); |
847 | if (r < 0) | |
d354690e | 848 | return r; |
090be865 | 849 | if (!streq(s, p)) |
72bc96f0 KS |
850 | return 0; |
851 | ||
09d04a74 | 852 | if (sd_device_get_devtype(dev, &devtype) >= 0) { |
d23965a6 KS |
853 | if (streq("wlan", devtype)) |
854 | prefix = "wl"; | |
855 | else if (streq("wwan", devtype)) | |
856 | prefix = "ww"; | |
857 | } | |
858 | ||
f7e81fd9 LP |
859 | udev_builtin_add_property(dev, test, "ID_NET_NAMING_SCHEME", naming_scheme()->name); |
860 | ||
09d04a74 YW |
861 | r = names_mac(dev, &names); |
862 | if (r >= 0 && names.mac_valid) { | |
02609440 KS |
863 | char str[IFNAMSIZ]; |
864 | ||
d054f0a4 | 865 | xsprintf(str, "%sx%02x%02x%02x%02x%02x%02x", prefix, |
02609440 KS |
866 | names.mac[0], names.mac[1], names.mac[2], |
867 | names.mac[3], names.mac[4], names.mac[5]); | |
09d04a74 | 868 | udev_builtin_add_property(dev, test, "ID_NET_NAME_MAC", str); |
02609440 KS |
869 | |
870 | ieee_oui(dev, &names, test); | |
871 | } | |
872 | ||
e0d4a0ac | 873 | /* get path names for Linux on System z network devices */ |
09d04a74 | 874 | if (names_ccw(dev, &names) >= 0 && names.type == NET_CCW) { |
e0d4a0ac HB |
875 | char str[IFNAMSIZ]; |
876 | ||
73fc96c8 | 877 | if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.ccw_busid)) |
09d04a74 | 878 | udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str); |
d354690e | 879 | return 0; |
e0d4a0ac HB |
880 | } |
881 | ||
765a00b9 | 882 | /* get ibmveth/ibmvnic slot-based names. */ |
09d04a74 | 883 | if (names_vio(dev, &names) >= 0 && names.type == NET_VIO) { |
765a00b9 FB |
884 | char str[IFNAMSIZ]; |
885 | ||
73fc96c8 | 886 | if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.vio_slot)) |
09d04a74 | 887 | udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str); |
d354690e | 888 | return 0; |
765a00b9 FB |
889 | } |
890 | ||
c20e6de8 | 891 | /* get ACPI path names for ARM64 platform devices */ |
09d04a74 | 892 | if (names_platform(dev, &names, test) >= 0 && names.type == NET_PLATFORM) { |
c20e6de8 DJL |
893 | char str[IFNAMSIZ]; |
894 | ||
73fc96c8 | 895 | if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.platform_path)) |
09d04a74 | 896 | udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str); |
d354690e | 897 | return 0; |
c20e6de8 DJL |
898 | } |
899 | ||
02609440 | 900 | /* get PCI based path names, we compose only PCI based paths */ |
09d04a74 | 901 | if (names_pci(dev, &names) < 0) |
d354690e | 902 | return 0; |
02609440 KS |
903 | |
904 | /* plain PCI device */ | |
905 | if (names.type == NET_PCI) { | |
906 | char str[IFNAMSIZ]; | |
907 | ||
73fc96c8 ZJS |
908 | if (names.pci_onboard[0] && |
909 | snprintf_ok(str, sizeof str, "%s%s", prefix, names.pci_onboard)) | |
09d04a74 | 910 | udev_builtin_add_property(dev, test, "ID_NET_NAME_ONBOARD", str); |
02609440 | 911 | |
73fc96c8 ZJS |
912 | if (names.pci_onboard_label && |
913 | snprintf_ok(str, sizeof str, "%s%s", prefix, names.pci_onboard_label)) | |
09d04a74 | 914 | udev_builtin_add_property(dev, test, "ID_NET_LABEL_ONBOARD", str); |
02609440 | 915 | |
73fc96c8 ZJS |
916 | if (names.pci_path[0] && |
917 | snprintf_ok(str, sizeof str, "%s%s", prefix, names.pci_path)) | |
09d04a74 | 918 | udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str); |
02609440 | 919 | |
73fc96c8 ZJS |
920 | if (names.pci_slot[0] && |
921 | snprintf_ok(str, sizeof str, "%s%s", prefix, names.pci_slot)) | |
09d04a74 | 922 | udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str); |
d354690e | 923 | return 0; |
02609440 KS |
924 | } |
925 | ||
926 | /* USB device */ | |
09d04a74 | 927 | if (names_usb(dev, &names) >= 0 && names.type == NET_USB) { |
02609440 KS |
928 | char str[IFNAMSIZ]; |
929 | ||
73fc96c8 ZJS |
930 | if (names.pci_path[0] && |
931 | snprintf_ok(str, sizeof str, "%s%s%s", prefix, names.pci_path, names.usb_ports)) | |
09d04a74 | 932 | udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str); |
02609440 | 933 | |
73fc96c8 ZJS |
934 | if (names.pci_slot[0] && |
935 | snprintf_ok(str, sizeof str, "%s%s%s", prefix, names.pci_slot, names.usb_ports)) | |
09d04a74 | 936 | udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str); |
d354690e | 937 | return 0; |
984c4348 KS |
938 | } |
939 | ||
940 | /* Broadcom bus */ | |
09d04a74 | 941 | if (names_bcma(dev, &names) >= 0 && names.type == NET_BCMA) { |
984c4348 KS |
942 | char str[IFNAMSIZ]; |
943 | ||
73fc96c8 ZJS |
944 | if (names.pci_path[0] && |
945 | snprintf_ok(str, sizeof str, "%s%s%s", prefix, names.pci_path, names.bcma_core)) | |
09d04a74 | 946 | udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str); |
984c4348 | 947 | |
73fc96c8 ZJS |
948 | if (names.pci_slot[0] && |
949 | snprintf(str, sizeof str, "%s%s%s", prefix, names.pci_slot, names.bcma_core)) | |
09d04a74 | 950 | udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str); |
d354690e | 951 | return 0; |
02609440 | 952 | } |
09d04a74 | 953 | |
d354690e | 954 | return 0; |
a660c63c KS |
955 | } |
956 | ||
957 | const struct udev_builtin udev_builtin_net_id = { | |
958 | .name = "net_id", | |
959 | .cmd = builtin_net_id, | |
5ac0162c | 960 | .help = "Network device properties", |
a660c63c | 961 | }; |