[systemd-commits] 4 commits - shell-completion/systemd-bash-completion.sh src/libudev src/udev

Kay Sievers kay at kemper.freedesktop.org
Tue Nov 20 09:19:15 PST 2012


 shell-completion/systemd-bash-completion.sh |    2 
 src/libudev/libudev-device.c                |   19 ++--
 src/udev/udev-builtin-net_id.c              |  118 +++++++++++++++++++++++++---
 src/udev/udev-event.c                       |   36 ++++----
 4 files changed, 136 insertions(+), 39 deletions(-)

New commits:
commit d23965a64eb5c2c97b839dc2e3e79fc1613994f1
Author: Kay Sievers <kay at vrfy.org>
Date:   Tue Nov 20 18:10:45 2012 +0100

    udev: net - add device naming properties

diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index eff4552..72237bf 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -17,6 +17,17 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
+/*
+ * eno<index> -- ethernet on-board
+ * ID_NET_NAME_FIRMWARE=eno1
+ *
+ * enp<pci bus number>s<slot>f<function> -- physical location/path
+ * ID_NET_NAME_PATH=enp19s0f0
+ *
+ * enm<MAC address> -- MAC address
+ * ID_NET_NAME_MAC=enxf0def180d479
+ */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
@@ -26,25 +37,110 @@
 
 #include "udev.h"
 
-/* IEEE Organizationally Unique Identifier */
-static int lookup_OUI(struct udev_device *dev, bool test) {
-        const char *addr;
-        unsigned int a1, a2, a3;
-        char oui[16];
+static int dev_pci(struct udev_device *dev, const char *prefix, bool test) {
+        struct udev_device *d;
+        unsigned int bus;
+        unsigned int slot;
+        unsigned int func;
+        const char *index;
+        int err;
 
-        addr = udev_device_get_sysattr_value(dev, "address");
-        if (!addr)
+        /* skip other buses than direct PCI parents */
+        d = udev_device_get_parent(dev);
+        if (!d || !streq("pci", udev_device_get_subsystem(d)))
                 return -ENOENT;
 
-        if (sscanf(addr, "%x:%x:%x:", &a1, &a2, &a3) != 3)
+        /* find SMBIOS type 41 entries for on-board devices */
+        index = udev_device_get_sysattr_value(d, "index");
+        if (index) {
+                unsigned int idx;
+
+                idx = strtoul(index, NULL, 0);
+                if (idx > 0) {
+                        const char *label;
+                        char s[16];
+
+                        snprintf(s, sizeof(s), "%so%d", prefix, idx);
+                        udev_builtin_add_property(dev, test, "ID_NET_NAME_FIRMWARE", s);
+
+                        label = udev_device_get_sysattr_value(d, "label");
+                        if (label)
+                                udev_builtin_add_property(dev, test, "ID_NET_LABEL_FIRMWARE", label);
+                }
+        }
+
+        /* compose a name based on the PCI bus location */
+        if (sscanf(udev_device_get_sysname(d), "0000:%x:%x.%d", &bus, &slot, &func) == 3) {
+                char str[16];
+
+                snprintf(str, sizeof(str), "%sp%ds%df%d", prefix, bus, slot, func);
+                err = udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);
+                if (err < 0)
+                        return err;
+        }
+        return 0;
+}
+
+static int dev_mac(struct udev_device *dev, const char *prefix, bool test) {
+        const char *s;
+        unsigned int i;
+        unsigned int a1, a2, a3, a4, a5, a6;
+        char str[16];
+        int err;
+
+        /* 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;
 
-        snprintf(oui, sizeof(oui), "OUI:%X%X%X", a1, a2, a3);
-        return udev_builtin_hwdb_lookup(dev, oui, test);
+        /* add IEEE Organizationally Unique Identifier */
+        snprintf(str, sizeof(str), "OUI:%X%X%X", a1, a2, a3);
+        udev_builtin_hwdb_lookup(dev, str, test);
+
+        snprintf(str, sizeof(str), "%sx%x%x%x%x%x%x", prefix, a1, a2, a3, a4, a5, a6);
+        err = udev_builtin_add_property(dev, test, "ID_NET_NAME_MAC", str);
+        if (err < 0)
+                return err;
+        return 0;
 }
 
 static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool test) {
-        lookup_OUI(dev, test);
+        const char *s;
+        unsigned int i;
+        const char *devtype;
+        const char *prefix = "en";
+
+        /* 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";
+        }
+
+        dev_pci(dev, prefix, test);
+        dev_mac(dev, prefix, test);
         return EXIT_SUCCESS;
 }
 

commit 66128b2b4d9a1fe3d65ccad3d916f5db07a765ca
Author: Kay Sievers <kay at vrfy.org>
Date:   Tue Nov 20 18:08:48 2012 +0100

    shell-completion: udev - add net_id

diff --git a/shell-completion/systemd-bash-completion.sh b/shell-completion/systemd-bash-completion.sh
index c1b851c..897f988 100644
--- a/shell-completion/systemd-bash-completion.sh
+++ b/shell-completion/systemd-bash-completion.sh
@@ -597,7 +597,7 @@ _udevadm() {
                 fi
 
         elif __contains_word "$verb" ${VERBS[TESTBUILTIN]}; then
-                      comps='blkid btrfs firmware hwdb input_id kmod path_id usb_id uaccess'
+                      comps='blkid btrfs firmware hwdb input_id kmod net_id path_id usb_id uaccess'
         fi
 
         COMPREPLY=( $(compgen -W '$comps' -- "$cur") )

commit 5ae18ddc0d86673520c0dd6b59ccac8afc8aa605
Author: Kay Sievers <kay at vrfy.org>
Date:   Tue Nov 20 18:07:57 2012 +0100

    libudev: do not resolve $attr{device} symlinks

diff --git a/src/libudev/libudev-device.c b/src/libudev/libudev-device.c
index acf8e24..d246d01 100644
--- a/src/libudev/libudev-device.c
+++ b/src/libudev/libudev-device.c
@@ -1358,16 +1358,17 @@ _public_ const char *udev_device_get_sysattr_value(struct udev_device *udev_devi
                         goto out;
                 }
 
-                /* resolve link to a device and return its syspath */
-                util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
-                dev = udev_device_new_from_syspath(udev_device->udev, path);
-                if (dev != NULL) {
-                        list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
-                                                         udev_device_get_syspath(dev));
-                        val = udev_list_entry_get_value(list_entry);
-                        udev_device_unref(dev);
+                /* resolve custom link to a device and return its syspath */
+                if (!streq(sysattr, "device")) {
+                        util_strscpyl(path, sizeof(path), udev_device->syspath, "/", sysattr, NULL);
+                        dev = udev_device_new_from_syspath(udev_device->udev, path);
+                        if (dev != NULL) {
+                                list_entry = udev_list_entry_add(&udev_device->sysattr_value_list, sysattr,
+                                                                 udev_device_get_syspath(dev));
+                                val = udev_list_entry_get_value(list_entry);
+                                udev_device_unref(dev);
+                        }
                 }
-
                 goto out;
         }
 

commit 3fd0c4c66df45ee457cfb5e4ca8e285914ebc32f
Author: Kay Sievers <kay at vrfy.org>
Date:   Tue Nov 20 18:07:14 2012 +0100

    udev: fix whitespace

diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 33ed477..b75ed33 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -90,24 +90,24 @@ size_t udev_event_apply_format(struct udev_event *event, const char *src, char *
                 const char fmt;
                 enum subst_type type;
         } map[] = {
-                { .name = "devnode",        .fmt = 'N',        .type = SUBST_DEVNODE },
-                { .name = "tempnode",        .fmt = 'N',        .type = SUBST_DEVNODE },
-                { .name = "attr",        .fmt = 's',        .type = SUBST_ATTR },
-                { .name = "sysfs",        .fmt = 's',        .type = SUBST_ATTR },
-                { .name = "env",        .fmt = 'E',        .type = SUBST_ENV },
-                { .name = "kernel",        .fmt = 'k',        .type = SUBST_KERNEL },
-                { .name = "number",        .fmt = 'n',        .type = SUBST_KERNEL_NUMBER },
-                { .name = "driver",        .fmt = 'd',        .type = SUBST_DRIVER },
-                { .name = "devpath",        .fmt = 'p',        .type = SUBST_DEVPATH },
-                { .name = "id",                .fmt = 'b',        .type = SUBST_ID },
-                { .name = "major",        .fmt = 'M',        .type = SUBST_MAJOR },
-                { .name = "minor",        .fmt = 'm',        .type = SUBST_MINOR },
-                { .name = "result",        .fmt = 'c',        .type = SUBST_RESULT },
-                { .name = "parent",        .fmt = 'P',        .type = SUBST_PARENT },
-                { .name = "name",        .fmt = 'D',        .type = SUBST_NAME },
-                { .name = "links",        .fmt = 'L',        .type = SUBST_LINKS },
-                { .name = "root",        .fmt = 'r',        .type = SUBST_ROOT },
-                { .name = "sys",        .fmt = 'S',        .type = SUBST_SYS },
+                { .name = "devnode",  .fmt = 'N', .type = SUBST_DEVNODE },
+                { .name = "tempnode", .fmt = 'N', .type = SUBST_DEVNODE },
+                { .name = "attr",     .fmt = 's', .type = SUBST_ATTR },
+                { .name = "sysfs",    .fmt = 's', .type = SUBST_ATTR },
+                { .name = "env",      .fmt = 'E', .type = SUBST_ENV },
+                { .name = "kernel",   .fmt = 'k', .type = SUBST_KERNEL },
+                { .name = "number",   .fmt = 'n', .type = SUBST_KERNEL_NUMBER },
+                { .name = "driver",   .fmt = 'd', .type = SUBST_DRIVER },
+                { .name = "devpath",  .fmt = 'p', .type = SUBST_DEVPATH },
+                { .name = "id",       .fmt = 'b', .type = SUBST_ID },
+                { .name = "major",    .fmt = 'M', .type = SUBST_MAJOR },
+                { .name = "minor",    .fmt = 'm', .type = SUBST_MINOR },
+                { .name = "result",   .fmt = 'c', .type = SUBST_RESULT },
+                { .name = "parent",   .fmt = 'P', .type = SUBST_PARENT },
+                { .name = "name",     .fmt = 'D', .type = SUBST_NAME },
+                { .name = "links",    .fmt = 'L', .type = SUBST_LINKS },
+                { .name = "root",     .fmt = 'r', .type = SUBST_ROOT },
+                { .name = "sys",      .fmt = 'S', .type = SUBST_SYS },
         };
         const char *from;
         char *s;



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