74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

23502de3b0891455c8ce499a9eb61b69d060a829Daniel Mack#include <stdio.h>

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include <stdlib.h>

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering#include <stdarg.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include <unistd.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include <string.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include <errno.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include <net/if.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include <linux/pci_regs.h>

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering#include "udev.h"

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poetteringenum netname_type{

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering NET_UNDEF,

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering NET_PCI,

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering NET_USB,

1b4f6e79ec51a57003896a0b605fba427b4a98d2Lennart Poettering};

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poetteringstruct netnames {

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering enum netname_type type;

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering uint8_t mac[6];

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering bool mac_valid;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering struct udev_device *pcidev;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering char pci_slot[IFNAMSIZ];

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering char pci_path[IFNAMSIZ];

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering char pci_onboard[IFNAMSIZ];

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering const char *pci_onboard_label;

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering struct udev_device *usbdev;

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering char usb_ports[IFNAMSIZ];

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering};

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

f5430a3ef308f3a102899fcaf7fbece757082f2aLennart Poetteringstatic int dev_pci_onboard(struct udev_device *dev, struct netnames *names) {

d75acfb059ece4512278b8820a9103664996f1e5Lennart Poettering const char *index;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering int idx;

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering /* ACPI _DSM -- device specific method for naming a PCI or PCI Express device */

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering index = udev_device_get_sysattr_value(names->pcidev, "acpi_index");

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering /* SMBIOS type 41 -- Onboard Devices Extended Information */

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering if (!index)

9c92ce6d67f88beb31dd6555d12ae3f632218a39Lennart Poettering index = udev_device_get_sysattr_value(names->pcidev, "index");

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!index)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return -ENOENT;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering idx = strtoul(index, NULL, 0);

8ac4e9e1e54397f6d1745c2a7a806132418c7da2Lennart Poettering if (idx <= 0)

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return -EINVAL;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering snprintf(names->pci_onboard, sizeof(names->pci_onboard), "o%d", idx);

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering names->pci_onboard_label = udev_device_get_sysattr_value(names->pcidev, "label");

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering return 0;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering}

2e276efc7b0398a3086629a52970bdd4ab7252f9Zbigniew Jędrzejewski-Szmek

c0eb11cfd016381fe02875a4ef29c1ade00c94e7Lennart Poetteringstatic bool is_pci_singlefunction(struct udev_device *dev) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering char filename[256];

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering FILE *f;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering char config[64];

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering bool single = false;

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering snprintf(filename, sizeof(filename), "%s/config", udev_device_get_syspath(dev));

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering f = fopen(filename, "re");

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering if (!f)

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering goto out;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering if (fread(&config, sizeof(config), 1, f) != 1)

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering goto out;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering /* bit 0-6 header type, bit 7 multi/single function device */

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering if ((config[PCI_HEADER_TYPE] & 0x80) == 0)

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering single = true;

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poetteringout:

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering fclose(f);

7e8e0422aeb16f2a09a40546c61df753d10029b6Lennart Poettering return single;

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek}

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmekstatic int dev_pci_slot(struct udev_device *dev, struct netnames *names) {

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek struct udev *udev = udev_device_get_udev(names->pcidev);

946c70944ebdf428ffeb9991a7449edbd4011461Zbigniew Jędrzejewski-Szmek unsigned int bus;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek unsigned int slot;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek unsigned int func;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek struct udev_device *pci = NULL;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek char slots[256];

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek DIR *dir;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek struct dirent *dent;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek char str[256];

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek int hotplug_slot = 0;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek int err = 0;

0dae31d468b1a0e22d98921f7b0dbd92fd217167Zbigniew Jędrzejewski-Szmek

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering /* compose a name based on the raw kernel's PCI bus, slot numbers */

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen if (sscanf(udev_device_get_sysname(names->pcidev), "0000:%x:%x.%d", &bus, &slot, &func) != 3)

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen return -ENOENT;

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen if (func == 0 && is_pci_singlefunction(names->pcidev))

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen snprintf(names->pci_path, sizeof(names->pci_path), "p%ds%d", bus, slot);

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen else

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen snprintf(names->pci_path, sizeof(names->pci_path), "p%ds%df%d", bus, slot, func);

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen

abf126a355e2f2b62b6c51ab3bb37895d1e3eee7Tom Gundersen /* ACPI _SUN -- slot user number */

549c1a2564b56f2bb38f1203d59c747ea15817f3Tom Gundersen pci = udev_device_new_from_subsystem_sysname(udev, "subsystem", "pci");

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering if (!pci) {

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering err = -ENOENT;

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering goto out;

549c1a2564b56f2bb38f1203d59c747ea15817f3Tom Gundersen }

549c1a2564b56f2bb38f1203d59c747ea15817f3Tom Gundersen snprintf(slots, sizeof(slots), "%s/slots", udev_device_get_syspath(pci));

42cc2eebb01056beb7acd3ecfe8e533558237f84Lennart Poettering dir = opendir(slots);

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek if (!dir) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek err = -errno;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek goto out;

f91dc2400dc33e9a0745ecaaef7489af116dca38Lennart Poettering }

f91dc2400dc33e9a0745ecaaef7489af116dca38Lennart Poettering

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek for (dent = readdir(dir); dent != NULL; dent = readdir(dir)) {

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek int i;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek char *rest;

8db0d2f5c37e7e8f5bfce016cfdad7947a3ea939Zbigniew Jędrzejewski-Szmek char *address;

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek if (dent->d_name[0] == '.')

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek continue;

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek i = strtol(dent->d_name, &rest, 10);

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek if (rest[0] != '\0')

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek continue;

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek if (i < 1)

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek continue;

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek snprintf(str, sizeof(str), "%s/%s/address", slots, dent->d_name);

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek if (read_one_line_file(str, &address) >= 0) {

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek /* match slot address with device by stripping the function */

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek if (strncmp(address, udev_device_get_sysname(names->pcidev), strlen(address)) == 0)

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek hotplug_slot = i;

151226ab4bf276d60d51864330a99f886b923697Zbigniew Jędrzejewski-Szmek free(address);

50f1e641a93cacfc693b0c3d300bee5df0c8c460Tom Gundersen }

9ead3519c54b6d1b79b35541873b5cf7c8b3a7d3Lennart Poettering

50f1e641a93cacfc693b0c3d300bee5df0c8c460Tom Gundersen if (hotplug_slot > 0)

50f1e641a93cacfc693b0c3d300bee5df0c8c460Tom Gundersen break;

50f1e641a93cacfc693b0c3d300bee5df0c8c460Tom Gundersen }

50f1e641a93cacfc693b0c3d300bee5df0c8c460Tom Gundersen closedir(dir);

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen if (hotplug_slot > 0) {

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen if (func == 0 && is_pci_singlefunction(names->pcidev))

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen snprintf(names->pci_slot, sizeof(names->pci_slot), "s%d", hotplug_slot);

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen else

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen snprintf(names->pci_slot, sizeof(names->pci_slot), "s%df%d", hotplug_slot, func);

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen }

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersenout:

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen udev_device_unref(pci);

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen return err;

5d45a8808431987c370706d365fb0cc95cf03d52Tom Gundersen}

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poetteringstatic int names_pci(struct udev_device *dev, struct netnames *names) {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering struct udev_device *parent;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering parent = udev_device_get_parent(dev);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (!parent)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return -ENOENT;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering /* check if our direct parent is a PCI device with no other bus in-between */

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (streq("pci", udev_device_get_subsystem(parent))) {

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering names->type = NET_PCI;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering names->pcidev = parent;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering } else {

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering names->pcidev = udev_device_get_parent_with_subsystem_devtype(dev, "pci", NULL);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering if (!names->pcidev)

36d9205d669bcdcb04fa730d1f3549a9fc9a9001Tom Gundersen return -ENOENT;

801ad6a6a9cd8fbd58b9f9c27f20dbb3c87d47ddLennart Poettering }

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering dev_pci_onboard(dev, names);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering dev_pci_slot(dev, names);

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return 0;

28b9b7640603f88cb49f95609331fa5072715f15Lennart Poettering}

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

105e151299dc1208855380be2b22d0db2d66ebc6Lennart Poetteringstatic int names_usb(struct udev_device *dev, struct netnames *names) {

5d27351f8546530cf779847b0b04b0172c09f9d0Tom Gundersen char name[256];

547973dea7abd6c124ff6c79fe2bbe322a7314aeLennart Poettering char *ports;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering char *config;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering char *interf;

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering size_t l;

7778dffff3d8bd7438fe19a248c16203668324c9Daniel Mack char *s;

7778dffff3d8bd7438fe19a248c16203668324c9Daniel Mack

7778dffff3d8bd7438fe19a248c16203668324c9Daniel Mack names->usbdev = udev_device_get_parent_with_subsystem_devtype(dev, "usb", "usb_interface");

7778dffff3d8bd7438fe19a248c16203668324c9Daniel Mack if (!names->usbdev)

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering return -ENOENT;

8bf52d3d17d364438191077d0750b8b80b5dc53aLennart Poettering

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering /* get USB port number chain, configuration, interface */

74b2466e14a1961bf3ac0e8a60cfaceec705bd59Lennart Poettering util_strscpy(name, sizeof(name), udev_device_get_sysname(names->usbdev));

623a4c97b9175f95c4b1c6fc34e36c56f1e4ddbfLennart Poettering s = strchr(name, '-');

78c6a153c47f8d597c827bdcaf8c4e42ac87f738Lennart Poettering if (!s)

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering return -EINVAL;

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering ports = s+1;

faa133f3aa7a18f26563dc5d6b95898cb315c37aLennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering s = strchr(ports, ':');

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering if (!s)

a8812dd7f161a3e459c1730ac92ff2bbc9986ff1Lennart Poettering return -EINVAL;

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering s[0] = '\0';

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering config = s+1;

2001c80560e3dae69e14fd994d3978c187af48b8Lennart Poettering

322345fdb9865ef2477fba8e4bdde0e1183ef505Lennart Poettering s = strchr(config, '.');

2d4c5cbc0ed3ccb09dc086a040088b454c22c644Lennart Poettering if (!s)

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt return -EINVAL;

d5099efc47d4e6ac60816b5381a5f607ab03f06eMichal Schmidt s[0] = '\0';

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering interf = s+1;

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering /* prefix every port number in the chain with "u"*/

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering s = ports;

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering while ((s = strchr(s, '.')))

8730bccfc59fe507bd3e0a3abcf411b497ac4f0eLennart Poettering s[0] = 'u';

s = names->usb_ports;

l = util_strpcpyl(&s, sizeof(names->usb_ports), "u", ports, NULL);

/* append USB config number, suppress the common config == 1 */

if (!streq(config, "1"))

l = util_strpcpyl(&s, sizeof(names->usb_ports), "c", config, NULL);

/* append USB interface number, suppress the interface == 0 */

if (!streq(interf, "0"))

l = util_strpcpyl(&s, sizeof(names->usb_ports), "i", interf, NULL);

if (l == 0)

return -ENAMETOOLONG;

names->type = NET_USB;

return 0;

}

static int names_mac(struct udev_device *dev, struct netnames *names) {

const char *s;

unsigned int i;

unsigned int a1, a2, a3, a4, a5, a6;

/* check for NET_ADDR_PERM, skip random MAC addresses */

s = udev_device_get_sysattr_value(dev, "addr_assign_type");

if (!s)

return EXIT_FAILURE;

i = strtoul(s, NULL, 0);

if (i != 0)

return 0;

s = udev_device_get_sysattr_value(dev, "address");

if (!s)

return -ENOENT;

if (sscanf(s, "%x:%x:%x:%x:%x:%x", &a1, &a2, &a3, &a4, &a5, &a6) != 6)

return -EINVAL;

/* skip empty MAC addresses */

if (a1 + a2 + a3 + a4 + a5 + a6 == 0)

return -EINVAL;

names->mac[0] = a1;

names->mac[1] = a2;

names->mac[2] = a3;

names->mac[3] = a4;

names->mac[4] = a5;

names->mac[5] = a6;

names->mac_valid = true;

return 0;

}

static int ieee_oui(struct udev_device *dev, struct netnames *names, bool test) {

char str[32];

if (!names->mac_valid)

return -ENOENT;

/* skip commonly misused 00:00:00 (Xerox) prefix */

if (memcmp(names->mac, "\0\0\0", 3) == 0)

return -EINVAL;

snprintf(str, sizeof(str), "OUI:%02X%02X%02X%02X%02X%02X",

names->mac[0], names->mac[1], names->mac[2],

names->mac[3], names->mac[4], names->mac[5]);

udev_builtin_hwdb_lookup(dev, str, test);

return 0;

}

static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool test) {

const char *s;

unsigned int i;

const char *devtype;

const char *prefix = "en";

struct netnames names;

int err;

/* handle only ARPHRD_ETHER devices */

s = udev_device_get_sysattr_value(dev, "type");

if (!s)

return EXIT_FAILURE;

i = strtoul(s, NULL, 0);

if (i != 1)

return 0;

devtype = udev_device_get_devtype(dev);

if (devtype) {

if (streq("wlan", devtype))

prefix = "wl";

else if (streq("wwan", devtype))

prefix = "ww";

}

zero(names);

err = names_mac(dev, &names);

if (err >= 0 && names.mac_valid) {

char str[IFNAMSIZ];

snprintf(str, sizeof(str), "%sx%02x%02x%02x%02x%02x%02x", prefix,

names.mac[0], names.mac[1], names.mac[2],

names.mac[3], names.mac[4], names.mac[5]);

udev_builtin_add_property(dev, test, "ID_NET_NAME_MAC", str);

ieee_oui(dev, &names, test);

}

/* get PCI based path names, we compose only PCI based paths */

err = names_pci(dev, &names);

if (err < 0)

goto out;

/* plain PCI device */

if (names.type == NET_PCI) {

char str[IFNAMSIZ];

if (names.pci_onboard[0])

if (snprintf(str, sizeof(str), "%s%s", prefix, names.pci_onboard) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_NAME_ONBOARD", str);

if (names.pci_onboard_label)

if (snprintf(str, sizeof(str), "%s%s", prefix, names.pci_onboard_label) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_LABEL_ONBOARD", str);

if (names.pci_path[0])

if (snprintf(str, sizeof(str), "%s%s", prefix, names.pci_path) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);

if (names.pci_slot[0])

if (snprintf(str, sizeof(str), "%s%s", prefix, names.pci_slot) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str);

goto out;

}

/* USB device */

err = names_usb(dev, &names);

if (err >= 0 && names.type == NET_USB) {

char str[IFNAMSIZ];

if (names.pci_path[0])

if (snprintf(str, sizeof(str), "%s%s%s", prefix, names.pci_path, names.usb_ports) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);

if (names.pci_slot[0])

if (snprintf(str, sizeof(str), "%s%s%s", prefix, names.pci_slot, names.usb_ports) < (int)sizeof(str))

udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str);

}

out:

return EXIT_SUCCESS;

}

const struct udev_builtin udev_builtin_net_id = {

.name = "net_id",

.cmd = builtin_net_id,

.help = "network device properties",

};