Builds for Linux without libnl is broken since commit
582f0966f9b9e2148d8887d072364e2a91aed000 so make libnl mandatory for
Linux.
Another option is to fix such builds, but it can bring more problems
than benefits. libnl is available on all supported distributions so the
only practical situation to lack libnl is that a developer does not have
a development package of libnl installed. Enabling builds in such a
situation make developers use builds divergent from CI and end-user
scenarios, which has some implications.
Builds without libnl lack several features such as SR-IOV,
bridge/tap, switchdev, macvlan, veth, and vlan. Some part of libvirt
may expect these features are readily available on Linux, and the lack
of libnl may cause a build failure like one mentioned earlier or runtime
errors even harder to debug.
Developers will then be forced to debug such bugs and to choose either
fixing the build configuration that has no real user or work around the
issue by installing the development package.
In any case, the bridge/tap configuration is one of the fundamental
features and developers are likely to want libnl for it.
Save the potential trouble for developers by requiring libnl for Linux
and let Meson direct them to install libnl.
Signed-off-by: Akihiko Odaki <akihiko.odaki(a)daynix.com>
---
Supersedes: <20250307-nl-v1-1-c66fc2bf8703(a)daynix.com>
("[PATCH] util: Check libnl function availability")
---
libvirt.spec.in | 2 -
meson.build | 16 +--
meson_options.txt | 1 -
src/util/virnetdev.c | 223 +++++++++++++++----------------------
src/util/virnetdevbridge.c | 27 +----
src/util/virnetdevip.c | 230 +++++++++++++++++++--------------------
src/util/virnetdevmacvlan.c | 6 +-
src/util/virnetdevveth.c | 35 ------
src/util/virnetdevvportprofile.c | 8 +-
src/util/virnetlink.c | 8 +-
src/util/virnetlink.h | 4 +-
tests/virnetdevtest.c | 8 --
12 files changed, 222 insertions(+), 346 deletions(-)
diff --git a/libvirt.spec.in b/libvirt.spec.in
index cb41ea1de1c6cd3d3d5f8c810d0df7be4f7d490f..9396029dd394d218f2c1c01740ad41754786dd04 100644
--- a/libvirt.spec.in
+++ b/libvirt.spec.in
@@ -1421,7 +1421,6 @@ export SOURCE_DATE_EPOCH=$(stat --printf='%Y' %{_specdir}/libvirt.spec)
-Dlibpcap=enabled \
%{?arg_nbdkit} \
%{?arg_nbdkit_config_default} \
- -Dlibnl=enabled \
-Daudit=enabled \
-Ddtrace=enabled \
-Dfirewalld=enabled \
@@ -1493,7 +1492,6 @@ export SOURCE_DATE_EPOCH=$(stat --printf='%Y' %{_specdir}/libvirt.spec)
-Dlibiscsi=disabled \
-Dnbdkit=disabled \
-Dnbdkit_config_default=disabled \
- -Dlibnl=disabled \
-Dlibpcap=disabled \
-Dlibssh2=disabled \
-Dlibssh=disabled \
diff --git a/meson.build b/meson.build
index 2d76a0846c6b94f8d168d25f09dd60954db770cb..fd90bb5b3005ac7ece24da4432fad78bdffdefe7 100644
--- a/meson.build
+++ b/meson.build
@@ -1086,18 +1086,10 @@ endif
conf.set10('USE_NBDKIT_DEFAULT', use_nbdkit_default)
libnl_version = '3.0'
-if not get_option('libnl').disabled() and host_machine.system() == 'linux'
- libnl_dep = dependency('libnl-3.0', version: '>=' + libnl_version, required: get_option('libnl'))
- libnl_route_dep = dependency('libnl-route-3.0', version: '>=' + libnl_version, required: get_option('libnl'))
-
- if libnl_dep.found() and libnl_route_dep.found()
- libnl_dep = declare_dependency(
- dependencies: [ libnl_dep, libnl_route_dep ],
- )
- conf.set('WITH_LIBNL', 1)
- endif
-elif get_option('libnl').enabled()
- error('libnl can be enabled only on linux')
+if host_machine.system() == 'linux'
+ libnl_dep = dependency('libnl-3.0', version: '>=' + libnl_version)
+ libnl_route_dep = dependency('libnl-route-3.0', version: '>=' + libnl_version)
+ libnl_dep = declare_dependency(dependencies: [ libnl_dep, libnl_route_dep ])
else
libnl_dep = dependency('', required: false)
endif
diff --git a/meson_options.txt b/meson_options.txt
index 3dc3e8667bb2cf73d96cd1ebe046590be55a5df8..bbcc13e8d8efa4c56cc3e0dc17386ccfd45b2b50 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -30,7 +30,6 @@ option('fuse', type: 'feature', value: 'auto', description: 'fuse support')
option('glusterfs', type: 'feature', value: 'auto', description: 'glusterfs support')
option('json_c', type: 'feature', value: 'auto', description: 'JSON-C support')
option('libiscsi', type: 'feature', value: 'auto', description: 'libiscsi support')
-option('libnl', type: 'feature', value: 'auto', description: 'libnl support')
option('libpcap', type: 'feature', value: 'auto', description: 'libpcap support')
option('libssh', type: 'feature', value: 'auto', description: 'libssh support')
option('libssh2', type: 'feature', value: 'auto', description: 'libssh2 support')
diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
index 8ae854245ed99dc1a3aa4c225b614ddbb449caf8..4129768bd42e7b1b2a9e7b24148627d1abe5458a 100644
--- a/src/util/virnetdev.c
+++ b/src/util/virnetdev.c
@@ -884,7 +884,7 @@ int virNetDevGetIndex(const char *ifname G_GNUC_UNUSED,
#endif /* ! SIOCGIFINDEX */
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
/**
* virNetDevGetMaster:
* @ifname: name of interface we're interested in
@@ -914,29 +914,6 @@ virNetDevGetMaster(const char *ifname, char **master)
return 0;
}
-#elif defined(__linux__)
-
-/* libnl isn't available, so we can't use netlink.
- * Fall back to using sysfs
- */
-int
-virNetDevGetMaster(const char *ifname, char **master)
-{
- g_autofree char *path = NULL;
- g_autofree char *canonical = NULL;
-
- if (virNetDevSysfsFile(&path, ifname, "master") < 0)
- return -1;
-
- if (!(canonical = virFileCanonicalizePath(path)))
- return -1;
-
- *master = g_path_get_basename(canonical);
-
- VIR_DEBUG("IFLA_MASTER for %s is %s", ifname, *master ? *master : "(none)");
- return 0;
-}
-
#else
int
@@ -949,7 +926,7 @@ virNetDevGetMaster(const char *ifname G_GNUC_UNUSED,
}
-#endif /* defined(WITH_LIBNL) */
+#endif /* defined(__linux__) */
#if __linux__
@@ -1079,8 +1056,6 @@ virNetDevSysfsDeviceFile(char **pf_sysfs_device_link, const char *ifname,
}
-# if defined(WITH_LIBNL)
-
/**
* Determine if the device path specified in devpath is a PCI Device
* by resolving the 'subsystem'-link in devpath and looking for
@@ -1133,7 +1108,6 @@ virNetDevGetPCIDevice(const char *devName)
return virPCIDeviceNew(vfPCIAddr);
}
-# endif
/* A wrapper to get content of file from ifname SYSFS_NET_DIR
@@ -1381,99 +1355,6 @@ virNetDevGetVirtualFunctionInfo(const char *vfname, char **pfname,
return ret;
}
-#else /* !__linux__ */
-int
-virNetDevGetPhysPortID(const char *ifname G_GNUC_UNUSED,
- char **physPortID)
-{
- /* this actually should never be called, and is just here to
- * satisfy the linker.
- */
- *physPortID = NULL;
- return 0;
-}
-
-int
-virNetDevGetPhysPortName(const char *ifname G_GNUC_UNUSED,
- char **physPortName)
-{
- /* this actually should never be called, and is just here to
- * satisfy the linker.
- */
- *physPortName = NULL;
- return 0;
-}
-
-int
-virNetDevGetVirtualFunctions(const char *pfname G_GNUC_UNUSED,
- virPCIVirtualFunctionList **vfs G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get virtual functions on this platform"));
- return -1;
-}
-
-int
-virNetDevIsVirtualFunction(const char *ifname G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to check virtual function status on this platform"));
- return -1;
-}
-
-int
-virNetDevGetVirtualFunctionIndex(const char *pfname G_GNUC_UNUSED,
- const char *vfname G_GNUC_UNUSED,
- int *vf_index G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get virtual function index on this platform"));
- return -1;
-}
-
-int
-virNetDevGetPhysicalFunction(const char *ifname G_GNUC_UNUSED,
- char **pfname G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get physical function status on this platform"));
- return -1;
-}
-
-int
-virNetDevPFGetVF(const char *pfname G_GNUC_UNUSED,
- int vf G_GNUC_UNUSED,
- char **vfname G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get virtual function name on this platform"));
- return -1;
-}
-
-int
-virNetDevGetVirtualFunctionInfo(const char *vfname G_GNUC_UNUSED,
- char **pfname G_GNUC_UNUSED,
- int *vf G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get virtual function info on this platform"));
- return -1;
-}
-
-int
-virNetDevSysfsFile(char **pf_sysfs_device_link G_GNUC_UNUSED,
- const char *ifname G_GNUC_UNUSED,
- const char *file G_GNUC_UNUSED)
-{
- virReportSystemError(ENOSYS, "%s",
- _("Unable to get sysfs info on this platform"));
- return -1;
-}
-
-
-#endif /* !__linux__ */
-#if defined(WITH_LIBNL)
-
static virMacAddr zeroMAC = { .addr = { 0, 0, 0, 0, 0, 0 } };
@@ -2379,8 +2260,94 @@ virNetDevSetNetConfig(const char *linkdev, int vf,
return 0;
}
+#else /* !__linux__ */
+int
+virNetDevGetPhysPortID(const char *ifname G_GNUC_UNUSED,
+ char **physPortID)
+{
+ /* this actually should never be called, and is just here to
+ * satisfy the linker.
+ */
+ *physPortID = NULL;
+ return 0;
+}
+
+int
+virNetDevGetPhysPortName(const char *ifname G_GNUC_UNUSED,
+ char **physPortName)
+{
+ /* this actually should never be called, and is just here to
+ * satisfy the linker.
+ */
+ *physPortName = NULL;
+ return 0;
+}
+
+int
+virNetDevGetVirtualFunctions(const char *pfname G_GNUC_UNUSED,
+ virPCIVirtualFunctionList **vfs G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get virtual functions on this platform"));
+ return -1;
+}
+
+int
+virNetDevIsVirtualFunction(const char *ifname G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to check virtual function status on this platform"));
+ return -1;
+}
+
+int
+virNetDevGetVirtualFunctionIndex(const char *pfname G_GNUC_UNUSED,
+ const char *vfname G_GNUC_UNUSED,
+ int *vf_index G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get virtual function index on this platform"));
+ return -1;
+}
+
+int
+virNetDevGetPhysicalFunction(const char *ifname G_GNUC_UNUSED,
+ char **pfname G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get physical function status on this platform"));
+ return -1;
+}
-#else /* defined(WITH_LIBNL) */
+int
+virNetDevPFGetVF(const char *pfname G_GNUC_UNUSED,
+ int vf G_GNUC_UNUSED,
+ char **vfname G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get virtual function name on this platform"));
+ return -1;
+}
+
+int
+virNetDevGetVirtualFunctionInfo(const char *vfname G_GNUC_UNUSED,
+ char **pfname G_GNUC_UNUSED,
+ int *vf G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get virtual function info on this platform"));
+ return -1;
+}
+
+int
+virNetDevSysfsFile(char **pf_sysfs_device_link G_GNUC_UNUSED,
+ const char *ifname G_GNUC_UNUSED,
+ const char *file G_GNUC_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to get sysfs info on this platform"));
+ return -1;
+}
int
@@ -2477,7 +2444,7 @@ virNetDevSetVfConfig(const char *ifname G_GNUC_UNUSED,
}
-#endif /* defined(WITH_LIBNL) */
+#endif /* defined(__linux__) */
VIR_ENUM_IMPL(virNetDevIfState,
VIR_NETDEV_IF_STATE_LAST,
@@ -3095,8 +3062,6 @@ virNetDevGetEthtoolFeatures(const char *ifname,
}
-# if defined(WITH_LIBNL)
-
/**
* virNetDevGetFamilyId:
* This function supplies the devlink family id
@@ -3237,14 +3202,6 @@ virNetDevSwitchdevFeature(const char *ifname,
nlmsg_free(nl_msg);
return ret;
}
-# else
-static int
-virNetDevSwitchdevFeature(const char *ifname G_GNUC_UNUSED,
- virBitmap **out G_GNUC_UNUSED)
-{
- return 0;
-}
-# endif
/**
diff --git a/src/util/virnetdevbridge.c b/src/util/virnetdevbridge.c
index c79d0c79b7b16a0a070b5013ed7df9d0a63b1c38..45f8dd7e15286b875f5b54ad147b32323886e1f0 100644
--- a/src/util/virnetdevbridge.c
+++ b/src/util/virnetdevbridge.c
@@ -30,9 +30,7 @@
#endif
#ifdef __linux__
-# if defined(WITH_LIBNL)
-# include "virnetlink.h"
-# endif
+# include "virnetlink.h"
# include <linux/sockios.h>
# include <linux/param.h> /* HZ */
# include <linux/in6.h>
@@ -479,7 +477,7 @@ virNetDevBridgeCreateWithIoctl(const char *brname,
}
#endif
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
int
virNetDevBridgeCreate(const char *brname,
const virMacAddr *mac)
@@ -509,15 +507,6 @@ virNetDevBridgeCreate(const char *brname,
}
-#elif defined(WITH_STRUCT_IFREQ) && defined(SIOCBRADDBR)
-int
-virNetDevBridgeCreate(const char *brname,
- const virMacAddr *mac)
-{
- return virNetDevBridgeCreateWithIoctl(brname, mac);
-}
-
-
#elif defined(WITH_STRUCT_IFREQ) && defined(SIOCIFCREATE2)
int
virNetDevBridgeCreate(const char *brname,
@@ -590,7 +579,7 @@ virNetDevBridgeDeleteWithIoctl(const char *brname)
#endif
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
int
virNetDevBridgeDelete(const char *brname)
{
@@ -606,14 +595,6 @@ virNetDevBridgeDelete(const char *brname)
}
-#elif defined(WITH_STRUCT_IFREQ) && defined(SIOCBRDELBR)
-int
-virNetDevBridgeDelete(const char *brname)
-{
- return virNetDevBridgeDeleteWithIoctl(brname);
-}
-
-
#elif defined(WITH_STRUCT_IFREQ) && defined(SIOCIFDESTROY)
int
virNetDevBridgeDelete(const char *brname)
@@ -1020,7 +1001,7 @@ virNetDevBridgeSetVlanFiltering(const char *brname G_GNUC_UNUSED,
#endif
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
# ifndef NTF_SELF
# define NTF_SELF 0x02
diff --git a/src/util/virnetdevip.c b/src/util/virnetdevip.c
index f365c1999c3d358a6a7b56ebda9f318c25fe96fd..acb0f41321b3d1d0f83fcf808ea9f95ffd9ddd46 100644
--- a/src/util/virnetdevip.c
+++ b/src/util/virnetdevip.c
@@ -52,7 +52,7 @@
VIR_LOG_INIT("util.netdevip");
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
static int
virNetDevGetIPAddressBinary(virSocketAddr *addr, void **data, size_t *len)
@@ -361,7 +361,118 @@ virNetDevIPRouteAdd(const char *ifname,
}
-#else /* defined(WITH_LIBNL) */
+static int
+virNetDevIPGetAcceptRA(const char *ifname)
+{
+ g_autofree char *path = NULL;
+ g_autofree char *buf = NULL;
+ char *suffix;
+ int accept_ra = -1;
+
+ path = g_strdup_printf("/proc/sys/net/ipv6/conf/%s/accept_ra",
+ ifname ? ifname : "all");
+
+ if ((virFileReadAll(path, 512, &buf) < 0) ||
+ (virStrToLong_i(buf, &suffix, 10, &accept_ra) < 0))
+ return -1;
+
+ return accept_ra;
+}
+
+/**
+ * virNetDevIPCheckIPv6Forwarding
+ *
+ * This function checks if IPv6 routes have the RTF_ADDRCONF flag set,
+ * indicating they have been created by the kernel's RA configuration
+ * handling. These routes are subject to being flushed when ipv6
+ * forwarding is enabled unless accept_ra is explicitly set to "2".
+ * This will most likely result in ipv6 networking being broken.
+ *
+ * Returns: true if it is safe to enable forwarding, or false if
+ * breakable routes are found.
+ *
+ **/
+bool
+virNetDevIPCheckIPv6Forwarding(void)
+{
+ int len;
+ char *cur;
+ g_autofree char *buf = NULL;
+ /* lines are 150 chars */
+ enum {MAX_ROUTE_SIZE = 150*1000000};
+
+ /* This is /proc/sys/net/ipv6/conf/all/accept_ra */
+ int all_accept_ra = virNetDevIPGetAcceptRA(NULL);
+
+ /* Read ipv6 routes */
+ if ((len = virFileReadAll(PROC_NET_IPV6_ROUTE,
+ MAX_ROUTE_SIZE, &buf)) < 0) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Unable to read %1$s for ipv6 forwarding checks"),
+ PROC_NET_IPV6_ROUTE);
+ return false;
+ }
+
+ /* Dropping the last character to stop the loop */
+ if (len > 0)
+ buf[len-1] = '\0';
+
+ cur = buf;
+ while (cur) {
+ char route[33], flags[9], iface[9];
+ unsigned int flags_val;
+ char *iface_val;
+ int num;
+ char *nl = strchr(cur, '\n');
+
+ if (nl)
+ *nl++ = '\0';
+
+ num = sscanf(cur, "%32s %*s %*s %*s %*s %*s %*s %*s %8s %8s",
+ route, flags, iface);
+
+ cur = nl;
+ if (num != 3) {
+ VIR_DEBUG("Failed to parse route line: %s", cur);
+ continue;
+ }
+
+ if (virStrToLong_ui(flags, NULL, 16, &flags_val)) {
+ VIR_DEBUG("Failed to parse flags: %s", flags);
+ continue;
+ }
+
+ /* This is right justified, strip leading spaces */
+ iface_val = &iface[0];
+ while (*iface_val && g_ascii_isspace(*iface_val))
+ iface_val++;
+
+ VIR_DEBUG("%s iface %s flags %s : RTF_ADDRCONF %sset",
+ route, iface_val, flags,
+ (flags_val & RTF_ADDRCONF ? "" : "not "));
+
+ if (flags_val & RTF_ADDRCONF) {
+ int ret = virNetDevIPGetAcceptRA(iface_val);
+ VIR_DEBUG("%s reports accept_ra of %d",
+ iface_val, ret);
+ /* If the interface for this autoconfigured route
+ * has accept_ra == 1, or it is default and the "all"
+ * value of accept_ra == 1, it will be subject to
+ * flushing if forwarding is enabled.
+ */
+ if (ret == 1 || (ret == 0 && all_accept_ra == 1)) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Check the host setup: interface %1$s has kernel autoconfigured IPv6 routes and enabling forwarding without accept_ra set to 2 will cause the kernel to flush them, breaking networking."),
+ iface_val);
+ return false;
+ }
+ }
+ }
+ return true;
+}
+
+
+#else /* defined(__linux__) */
int
@@ -482,121 +593,6 @@ virNetDevIPRouteAdd(const char *ifname,
return 0;
}
-#endif /* defined(HAVE_LIBNL) */
-
-
-#if defined(__linux__)
-
-static int
-virNetDevIPGetAcceptRA(const char *ifname)
-{
- g_autofree char *path = NULL;
- g_autofree char *buf = NULL;
- char *suffix;
- int accept_ra = -1;
-
- path = g_strdup_printf("/proc/sys/net/ipv6/conf/%s/accept_ra",
- ifname ? ifname : "all");
-
- if ((virFileReadAll(path, 512, &buf) < 0) ||
- (virStrToLong_i(buf, &suffix, 10, &accept_ra) < 0))
- return -1;
-
- return accept_ra;
-}
-
-/**
- * virNetDevIPCheckIPv6Forwarding
- *
- * This function checks if IPv6 routes have the RTF_ADDRCONF flag set,
- * indicating they have been created by the kernel's RA configuration
- * handling. These routes are subject to being flushed when ipv6
- * forwarding is enabled unless accept_ra is explicitly set to "2".
- * This will most likely result in ipv6 networking being broken.
- *
- * Returns: true if it is safe to enable forwarding, or false if
- * breakable routes are found.
- *
- **/
-bool
-virNetDevIPCheckIPv6Forwarding(void)
-{
- int len;
- char *cur;
- g_autofree char *buf = NULL;
- /* lines are 150 chars */
- enum {MAX_ROUTE_SIZE = 150*1000000};
-
- /* This is /proc/sys/net/ipv6/conf/all/accept_ra */
- int all_accept_ra = virNetDevIPGetAcceptRA(NULL);
-
- /* Read ipv6 routes */
- if ((len = virFileReadAll(PROC_NET_IPV6_ROUTE,
- MAX_ROUTE_SIZE, &buf)) < 0) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Unable to read %1$s for ipv6 forwarding checks"),
- PROC_NET_IPV6_ROUTE);
- return false;
- }
-
- /* Dropping the last character to stop the loop */
- if (len > 0)
- buf[len-1] = '\0';
-
- cur = buf;
- while (cur) {
- char route[33], flags[9], iface[9];
- unsigned int flags_val;
- char *iface_val;
- int num;
- char *nl = strchr(cur, '\n');
-
- if (nl)
- *nl++ = '\0';
-
- num = sscanf(cur, "%32s %*s %*s %*s %*s %*s %*s %*s %8s %8s",
- route, flags, iface);
-
- cur = nl;
- if (num != 3) {
- VIR_DEBUG("Failed to parse route line: %s", cur);
- continue;
- }
-
- if (virStrToLong_ui(flags, NULL, 16, &flags_val)) {
- VIR_DEBUG("Failed to parse flags: %s", flags);
- continue;
- }
-
- /* This is right justified, strip leading spaces */
- iface_val = &iface[0];
- while (*iface_val && g_ascii_isspace(*iface_val))
- iface_val++;
-
- VIR_DEBUG("%s iface %s flags %s : RTF_ADDRCONF %sset",
- route, iface_val, flags,
- (flags_val & RTF_ADDRCONF ? "" : "not "));
-
- if (flags_val & RTF_ADDRCONF) {
- int ret = virNetDevIPGetAcceptRA(iface_val);
- VIR_DEBUG("%s reports accept_ra of %d",
- iface_val, ret);
- /* If the interface for this autoconfigured route
- * has accept_ra == 1, or it is default and the "all"
- * value of accept_ra == 1, it will be subject to
- * flushing if forwarding is enabled.
- */
- if (ret == 1 || (ret == 0 && all_accept_ra == 1)) {
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Check the host setup: interface %1$s has kernel autoconfigured IPv6 routes and enabling forwarding without accept_ra set to 2 will cause the kernel to flush them, breaking networking."),
- iface_val);
- return false;
- }
- }
- }
- return true;
-}
-#else
bool
virNetDevIPCheckIPv6Forwarding(void)
diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c
index cde9d70eefd047dc5c16056f6697cf4d05bc0795..c8a7a92eb6d8bedc3b1a838ac867e9b104cc5cb0 100644
--- a/src/util/virnetdevmacvlan.c
+++ b/src/util/virnetdevmacvlan.c
@@ -35,7 +35,7 @@ VIR_ENUM_IMPL(virNetDevMacVLanMode,
"passthrough",
);
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
# include <fcntl.h>
# include <net/if.h>
@@ -859,7 +859,7 @@ int virNetDevMacVLanRestartWithVPortProfile(const char *cr_ifname,
}
-#else /* ! WITH_LIBNL */
+#else /* ! __linux__ */
bool virNetDevMacVLanIsMacvtap(const char *ifname G_GNUC_UNUSED)
{
virReportSystemError(ENOSYS, "%s",
@@ -959,4 +959,4 @@ int virNetDevMacVLanVPortProfileRegisterCallback(const char *ifname G_GNUC_UNUSE
_("Cannot create macvlan devices on this platform"));
return -1;
}
-#endif /* ! WITH_LIBNL */
+#endif /* ! __linux__ */
diff --git a/src/util/virnetdevveth.c b/src/util/virnetdevveth.c
index 4365345664c50f47680d5fdb74d616ac989a57c9..7c4a36d3d54c4da34cb2049966d142f1b6974278 100644
--- a/src/util/virnetdevveth.c
+++ b/src/util/virnetdevveth.c
@@ -32,7 +32,6 @@
VIR_LOG_INIT("util.netdevveth");
-#if defined(WITH_LIBNL)
static int
virNetDevVethCreateInternal(const char *veth1, const char *veth2)
{
@@ -56,40 +55,6 @@ virNetDevVethDeleteInternal(const char *veth)
{
return virNetlinkDelLink(veth, NULL);
}
-#else
-static int
-virNetDevVethCreateInternal(const char *veth1, const char *veth2)
-{
- g_autoptr(virCommand) cmd = virCommandNew("ip");
- virCommandAddArgList(cmd, "link", "add", veth1, "type", "veth",
- "peer", "name", veth2, NULL);
-
- return virCommandRun(cmd, NULL);
-}
-
-static int
-virNetDevVethDeleteInternal(const char *veth)
-{
- int status;
- g_autoptr(virCommand) cmd = virCommandNewArgList("ip", "link",
- "del", veth, NULL);
-
- if (virCommandRun(cmd, &status) < 0)
- return -1;
-
- if (status != 0) {
- if (!virNetDevExists(veth)) {
- VIR_DEBUG("Device %s already deleted (by kernel namespace cleanup)", veth);
- return 0;
- }
- virReportError(VIR_ERR_INTERNAL_ERROR,
- _("Failed to delete veth device %1$s"), veth);
- return -1;
- }
-
- return 0;
-}
-#endif /* WITH_LIBNL */
/**
* virNetDevVethCreate:
diff --git a/src/util/virnetdevvportprofile.c b/src/util/virnetdevvportprofile.c
index c755fa79ec02e0e77b06bf6a3b6f42e24421e7dc..26be6e91319b98539927e6079596b976af207642 100644
--- a/src/util/virnetdevvportprofile.c
+++ b/src/util/virnetdevvportprofile.c
@@ -46,7 +46,7 @@ VIR_ENUM_IMPL(virNetDevVPortProfileOp,
"no-op",
);
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
# include <fcntl.h>
@@ -446,7 +446,7 @@ int virNetDevVPortProfileMerge3(virNetDevVPortProfile **result,
}
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
static struct nla_policy ifla_port_policy[IFLA_PORT_MAX + 1] =
{
@@ -1327,7 +1327,7 @@ virNetDevVPortProfileDisassociate(const char *macvtap_ifname,
return rc;
}
-#else /* !WITH_LIBNL */
+#else /* !__linux__ */
int virNetDevVPortProfileAssociate(const char *macvtap_ifname G_GNUC_UNUSED,
const virNetDevVPortProfile *virtPort G_GNUC_UNUSED,
const virMacAddr *macvtap_macaddr G_GNUC_UNUSED,
@@ -1353,4 +1353,4 @@ int virNetDevVPortProfileDisassociate(const char *macvtap_ifname G_GNUC_UNUSED,
_("Virtual port profile association not supported on this platform"));
return -1;
}
-#endif /* !WITH_LIBNL */
+#endif /* !__linux__ */
diff --git a/src/util/virnetlink.c b/src/util/virnetlink.c
index 206646d9d794d833de90266d4ab7cec015552137..0bb0ef23da28f2810d4e31c1bf9017545f11d0b9 100644
--- a/src/util/virnetlink.c
+++ b/src/util/virnetlink.c
@@ -37,7 +37,7 @@ VIR_LOG_INIT("util.netlink");
#define NETLINK_ACK_TIMEOUT_S (2*1000)
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
# include <linux/veth.h>
@@ -1267,11 +1267,7 @@ virNetlinkEventRemoveClient(int watch, const virMacAddr *macaddr,
#else
-# if defined(__linux__)
-static const char *unsupported = N_("libnl was not available at build time");
-# else
static const char *unsupported = N_("not supported on non-linux platforms");
-# endif
int
virNetlinkStartup(void)
@@ -1435,4 +1431,4 @@ virNetlinkGetErrorCode(struct nlmsghdr *resp G_GNUC_UNUSED,
return -EINVAL;
}
-#endif /* WITH_LIBNL */
+#endif /* __linux__ */
diff --git a/src/util/virnetlink.h b/src/util/virnetlink.h
index 327fb426a1d898398a60e46d3ee8fc554a2db548..56ee48161ada307e8af0bd2d4b8d7497a43e075c 100644
--- a/src/util/virnetlink.h
+++ b/src/util/virnetlink.h
@@ -22,7 +22,7 @@
#include "internal.h"
#include "virmacaddr.h"
-#if defined(WITH_LIBNL)
+#if defined(__linux__)
# include <netlink/msg.h>
# include <linux/if_bridge.h>
@@ -41,7 +41,7 @@ struct sockaddr_nl;
struct nlattr;
struct nlmsghdr;
-#endif /* WITH_LIBNL */
+#endif /* __linux__ */
int virNetlinkStartup(void);
void virNetlinkShutdown(void);
diff --git a/tests/virnetdevtest.c b/tests/virnetdevtest.c
index 42f1a74ee9ad66f40150920670a4f71518c9d610..99cf347934911aa4ae40bf61145e7817efbee97b 100644
--- a/tests/virnetdevtest.c
+++ b/tests/virnetdevtest.c
@@ -63,8 +63,6 @@ testVirNetDevGetLinkInfo(const void *opaque)
return 0;
}
-# if defined(WITH_LIBNL)
-
int
(*real_virNetDevSendVfSetLinkRequest)(const char *ifname,
int vfInfoType,
@@ -301,8 +299,6 @@ testVirNetDevSetVfConfig(const void *opaque G_GNUC_UNUSED)
return 0;
}
-# endif /* defined(WITH_LIBNL) */
-
static int
mymain(void)
{
@@ -320,8 +316,6 @@ mymain(void)
DO_TEST_LINK("lo", VIR_NETDEV_IF_STATE_UNKNOWN, 0);
DO_TEST_LINK("eth0-broken", VIR_NETDEV_IF_STATE_DOWN, 0);
-# if defined(WITH_LIBNL)
-
if (virTestRun("Set VF MAC", testVirNetDevSetVfMac, NULL) < 0)
ret = -1;
if (virTestRun("Set VF MAC: missing MAC pointer", testVirNetDevSetVfMissingMac, NULL) < 0)
@@ -331,8 +325,6 @@ mymain(void)
if (virTestRun("Set VF Config", testVirNetDevSetVfConfig, NULL) < 0)
ret = -1;
-# endif /* defined(WITH_LIBNL) */
-
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
---
base-commit: e5299ddf86121d3c792ca271ffcb54900eb19dc3
change-id: 20250308-require-289966671f9d
Best regards,
--
Akihiko Odaki <akihiko.odaki(a)daynix.com>
