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systemd/SOURCES/0714-udev-extend-the-length...

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From 9f59dca3868b1e934a2aac2d811c55ab33cca0eb Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 17 Dec 2019 11:01:35 +0900
Subject: [PATCH] udev: extend the length of ID_NET_NAME_XXX= to ALTIFNAMSIZ
(cherry picked from commit 78f8849f84ca0939796edb840e878a9d2e124a4d)
Related: #2005008
---
src/udev/net/link-config.c | 5 ++++-
src/udev/udev-builtin-net_id.c | 33 +++++++++++++++++----------------
src/udev/udev-event.c | 4 ++--
3 files changed, 23 insertions(+), 19 deletions(-)
diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index e5052f8f29..4de8ee7d7e 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -19,6 +19,7 @@
#include "path-util.h"
#include "proc-cmdline.h"
#include "random-util.h"
+#include "socket-util.h"
#include "stat-util.h"
#include "string-table.h"
#include "string-util.h"
@@ -405,7 +406,7 @@ int link_config_apply(link_config_ctx *ctx, link_config *config,
NamePolicy *policy;
for (policy = config->name_policy;
- !new_name && *policy != _NAMEPOLICY_INVALID; policy++) {
+ *policy != _NAMEPOLICY_INVALID; policy++) {
switch (*policy) {
case NAMEPOLICY_KERNEL:
respect_predictable = true;
@@ -428,6 +429,8 @@ int link_config_apply(link_config_ctx *ctx, link_config *config,
default:
break;
}
+ if (ifname_valid(new_name))
+ break;
}
}
diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index eafcbb64c5..386d74ca5e 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -90,6 +90,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <linux/if.h>
#include <linux/pci_regs.h>
#include "dirent-util.h"
@@ -176,21 +177,21 @@ struct netnames {
bool mac_valid;
struct udev_device *pcidev;
- char pci_slot[IFNAMSIZ];
- char pci_path[IFNAMSIZ];
- char pci_onboard[IFNAMSIZ];
+ char pci_slot[ALTIFNAMSIZ];
+ char pci_path[ALTIFNAMSIZ];
+ char pci_onboard[ALTIFNAMSIZ];
const char *pci_onboard_label;
- char usb_ports[IFNAMSIZ];
- char bcma_core[IFNAMSIZ];
- char ccw_busid[IFNAMSIZ];
- char vio_slot[IFNAMSIZ];
- char platform_path[IFNAMSIZ];
+ char usb_ports[ALTIFNAMSIZ];
+ char bcma_core[ALTIFNAMSIZ];
+ char ccw_busid[ALTIFNAMSIZ];
+ char vio_slot[ALTIFNAMSIZ];
+ char platform_path[ALTIFNAMSIZ];
};
struct virtfn_info {
struct udev_device *physfn_pcidev;
- char suffix[IFNAMSIZ];
+ char suffix[ALTIFNAMSIZ];
};
static const NamingScheme* naming_scheme_from_name(const char *name) {
@@ -887,7 +888,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
err = names_mac(dev, &names);
if (err >= 0 && names.mac_valid) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
xsprintf(str, "%sx%02x%02x%02x%02x%02x%02x", prefix,
names.mac[0], names.mac[1], names.mac[2],
@@ -900,7 +901,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* get path names for Linux on System z network devices */
err = names_ccw(dev, &names);
if (err >= 0 && names.type == NET_CCW) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.ccw_busid))
udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);
@@ -910,7 +911,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* get ibmveth/ibmvnic slot-based names. */
err = names_vio(dev, &names);
if (err >= 0 && names.type == NET_VIO) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.vio_slot))
udev_builtin_add_property(dev, test, "ID_NET_NAME_SLOT", str);
@@ -920,7 +921,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* get ACPI path names for ARM64 platform devices */
err = names_platform(dev, &names, test);
if (err >= 0 && names.type == NET_PLATFORM) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (snprintf_ok(str, sizeof str, "%s%s", prefix, names.platform_path))
udev_builtin_add_property(dev, test, "ID_NET_NAME_PATH", str);
@@ -934,7 +935,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* plain PCI device */
if (names.type == NET_PCI) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (names.pci_onboard[0] &&
snprintf_ok(str, sizeof str, "%s%s", prefix, names.pci_onboard))
@@ -957,7 +958,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* USB device */
err = names_usb(dev, &names);
if (err >= 0 && names.type == NET_USB) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (names.pci_path[0] &&
snprintf_ok(str, sizeof str, "%s%s%s", prefix, names.pci_path, names.usb_ports))
@@ -972,7 +973,7 @@ static int builtin_net_id(struct udev_device *dev, int argc, char *argv[], bool
/* Broadcom bus */
err = names_bcma(dev, &names);
if (err >= 0 && names.type == NET_BCMA) {
- char str[IFNAMSIZ];
+ char str[ALTIFNAMSIZ];
if (names.pci_path[0] &&
snprintf_ok(str, sizeof str, "%s%s%s", prefix, names.pci_path, names.bcma_core))
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index fd8406d959..19b100d4f8 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -816,13 +816,13 @@ out:
static int rename_netif(struct udev_event *event) {
struct udev_device *dev = event->dev;
- char name[IFNAMSIZ];
+ char name[ALTIFNAMSIZ];
const char *oldname;
int r;
oldname = udev_device_get_sysname(dev);
- strscpy(name, IFNAMSIZ, event->name);
+ strscpy(name, ALTIFNAMSIZ, event->name);
r = rtnl_set_link_name(&event->rtnl, udev_device_get_ifindex(dev), name);
if (r < 0)
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