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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-06-12 03:50:40 +0000
commitfc53809803cd2bc2434e312b19a18fa36776da12 (patch)
treeb4b43bd6538f51965ce32856e9c053d0f90919c8 /src/shared/netif-naming-scheme.c
parentAdding upstream version 255.5. (diff)
downloadsystemd-fc53809803cd2bc2434e312b19a18fa36776da12.tar.xz
systemd-fc53809803cd2bc2434e312b19a18fa36776da12.zip
Adding upstream version 256.upstream/256
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/shared/netif-naming-scheme.c')
-rw-r--r--src/shared/netif-naming-scheme.c83
1 files changed, 82 insertions, 1 deletions
diff --git a/src/shared/netif-naming-scheme.c b/src/shared/netif-naming-scheme.c
index fbaf5c5..2955b6e 100644
--- a/src/shared/netif-naming-scheme.c
+++ b/src/shared/netif-naming-scheme.c
@@ -1,6 +1,9 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#include "sd-device.h"
+
#include "alloc-util.h"
+#include "device-private.h"
#include "netif-naming-scheme.h"
#include "proc-cmdline.h"
#include "string-util.h"
@@ -50,7 +53,7 @@ const NamingScheme* naming_scheme(void) {
return cache;
/* Acquire setting from the kernel command line */
- (void) proc_cmdline_get_key("net.naming-scheme", 0, &buffer);
+ (void) proc_cmdline_get_key("net.naming_scheme", 0, &buffer);
/* Also acquire it from an env var */
e = getenv("NET_NAMING_SCHEME");
@@ -101,3 +104,81 @@ static const char* const alternative_names_policy_table[_NAMEPOLICY_MAX] = {
};
DEFINE_STRING_TABLE_LOOKUP(alternative_names_policy, NamePolicy);
+
+static int naming_sysattr_allowed_by_default(sd_device *dev) {
+ int r;
+
+ assert(dev);
+
+ r = device_get_property_bool(dev, "ID_NET_NAME_ALLOW");
+ if (r == -ENOENT)
+ return true;
+
+ return r;
+}
+
+static int naming_sysattr_allowed(sd_device *dev, const char *sysattr) {
+ char *sysattr_property;
+ int r;
+
+ assert(dev);
+ assert(sysattr);
+
+ sysattr_property = strjoina("ID_NET_NAME_ALLOW_", sysattr);
+ ascii_strupper(sysattr_property);
+
+ r = device_get_property_bool(dev, sysattr_property);
+ if (r == -ENOENT)
+ /* If ID_NET_NAME_ALLOW is not set or set to 1 default is to allow */
+ return naming_sysattr_allowed_by_default(dev);
+
+ return r;
+}
+
+int device_get_sysattr_int_filtered(sd_device *device, const char *sysattr, int *ret_value) {
+ int r;
+
+ r = naming_sysattr_allowed(device, sysattr);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ return device_get_sysattr_int(device, sysattr, ret_value);
+}
+
+int device_get_sysattr_unsigned_filtered(sd_device *device, const char *sysattr, unsigned *ret_value) {
+ int r;
+
+ r = naming_sysattr_allowed(device, sysattr);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ return device_get_sysattr_unsigned(device, sysattr, ret_value);
+}
+
+int device_get_sysattr_bool_filtered(sd_device *device, const char *sysattr) {
+ int r;
+
+ r = naming_sysattr_allowed(device, sysattr);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ return device_get_sysattr_bool(device, sysattr);
+}
+
+int device_get_sysattr_value_filtered(sd_device *device, const char *sysattr, const char **ret_value) {
+ int r;
+
+ r = naming_sysattr_allowed(device, sysattr);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return -ENOENT;
+
+ return sd_device_get_sysattr_value(device, sysattr, ret_value);
+}