[libvirt] [PATCH 30/33] Move virNetDevValidateConfig to virnetdev.c
Daniel P. Berrange
berrange at redhat.com
Thu Nov 3 17:30:26 UTC 2011
From: "Daniel P. Berrange" <berrange at redhat.com>
* src/util/interface.c, src/util/interface.h: Remove virNetDevValidateConfig
* src/util/virnetdev.c, src/util/virnetdev.h: Add virNetDevValidateConfig
---
src/util/interface.c | 89 --------------------------------------------------
src/util/interface.h | 4 --
src/util/virnetdev.c | 77 +++++++++++++++++++++++++++++++++++++++++++
src/util/virnetdev.h | 4 ++
4 files changed, 81 insertions(+), 93 deletions(-)
diff --git a/src/util/interface.c b/src/util/interface.c
index 16ad155..8264e7c 100644
--- a/src/util/interface.c
+++ b/src/util/interface.c
@@ -55,95 +55,6 @@
virReportErrorHelper(VIR_FROM_NET, code, __FILE__, \
__FUNCTION__, __LINE__, __VA_ARGS__)
-/**
- * virNetDevValidateConfig:
- * @ifname: Name of the interface
- * @macaddr: expected MAC address of the interface; not checked if NULL
- * @ifindex: expected index of the interface; not checked if '-1'
- *
- * Determine whether a given interface is still available. If so,
- * it must have the given MAC address and if an interface index is
- * passed, it must also match the interface index.
- *
- * Returns 1 if the config matches, 0 if the config does not match, or interface does not exist, -1 on error
- */
-#ifdef __linux__
-int virNetDevValidateConfig(const char *ifname,
- const unsigned char *macaddr, int ifindex)
-{
- int fd = -1;
- int ret = -1;
- struct ifreq ifr;
- int idx;
- int rc;
-
- if ((rc = virNetDevExists(ifname)) < 0)
- return -1;
- if (rc == 0) {
- ret = 0;
- goto cleanup;
- }
-
- if (macaddr != NULL) {
- fd = socket(PF_PACKET, SOCK_DGRAM, 0);
- if (fd < 0) {
- virReportSystemError(errno, "%s",
- _("Unable to open control socket"));
- return -1;
- }
-
- memset(&ifr, 0, sizeof(ifr));
-
- if (virStrncpy(ifr.ifr_name,
- ifname, strlen(ifname), sizeof(ifr.ifr_name)) == NULL) {
- virReportSystemError(ERANGE,
- _("invalid interface name %s"),
- ifname);
- goto cleanup;
- }
-
- if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) {
- if (errno == ENODEV) {
- ret = 0;
- goto cleanup;
- }
- virReportSystemError(errno,
- _("coud not get MAC address of interface %s"),
- ifname);
- goto cleanup;
- }
-
- if (memcmp(&ifr.ifr_hwaddr.sa_data, macaddr, VIR_MAC_BUFLEN) != 0) {
- ret = 0;
- goto cleanup;
- }
- }
-
- if (ifindex != -1) {
- if (virNetDevGetIndex(ifname, &idx) < 0)
- goto cleanup;
- else if (idx != ifindex) {
- ret = 0;
- goto cleanup;
- }
- }
-
- ret = 1;
-
- cleanup:
- VIR_FORCE_CLOSE(fd);
- return ret;
-}
-#else /* ! __linux__ */
-int virNetDevValidateConfig(const char *ifname ATTRIBUTE_UNUSED,
- const unsigned char *macaddr ATTRIBUTE_UNUSED,
- int ifindex ATTRIBUTE_UNUSED)
-{
- return -ENOSYS;
-}
-#endif /* ! __linux__ */
-
-
#if defined(__linux__) && defined(IFLA_PORT_MAX)
diff --git a/src/util/interface.h b/src/util/interface.h
index c230264..4256f29 100644
--- a/src/util/interface.h
+++ b/src/util/interface.h
@@ -30,10 +30,6 @@ struct nlattr;
# define NET_SYSFS "/sys/class/net/"
-int virNetDevValidateConfig(const char *ifname,
- const unsigned char *macaddr, int ifindex)
- ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
-
int ifaceMacvtapLinkDump(bool nltarget_kernel, const char *ifname, int ifindex,
struct nlattr **tb, unsigned char **recvbuf,
uint32_t (*getPidFunc)(void));
diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c
index b272d31..453c343 100644
--- a/src/util/virnetdev.c
+++ b/src/util/virnetdev.c
@@ -856,3 +856,80 @@ int virNetDevGetIPv4Address(const char *ifname ATTRIBUTE_UNUSED,
}
#endif /* __linux__ */
+
+
+/**
+ * virNetDevValidateConfig:
+ * @ifname: Name of the interface
+ * @macaddr: expected MAC address of the interface; not checked if NULL
+ * @ifindex: expected index of the interface; not checked if '-1'
+ *
+ * Determine whether a given interface is still available. If so,
+ * it must have the given MAC address and if an interface index is
+ * passed, it must also match the interface index.
+ *
+ * Returns 1 if the config matches, 0 if the config does not match, or interface does not exist, -1 on error
+ */
+#ifdef __linux__
+int virNetDevValidateConfig(const char *ifname,
+ const unsigned char *macaddr, int ifindex)
+{
+ int fd = -1;
+ int ret = -1;
+ struct ifreq ifr;
+ int idx;
+ int rc;
+
+ if ((rc = virNetDevExists(ifname)) < 0)
+ return -1;
+ if (rc == 0) {
+ ret = 0;
+ goto cleanup;
+ }
+
+ if (macaddr != NULL) {
+ if ((fd = virNetDevSetupControl(ifname, &ifr)) < 0)
+ return -1;
+
+ if (ioctl(fd, SIOCGIFHWADDR, &ifr) < 0) {
+ if (errno == ENODEV) {
+ ret = 0;
+ goto cleanup;
+ }
+ virReportSystemError(errno,
+ _("coud not get MAC address of interface %s"),
+ ifname);
+ goto cleanup;
+ }
+
+ if (memcmp(&ifr.ifr_hwaddr.sa_data, macaddr, VIR_MAC_BUFLEN) != 0) {
+ ret = 0;
+ goto cleanup;
+ }
+ }
+
+ if (ifindex != -1) {
+ if (virNetDevGetIndex(ifname, &idx) < 0)
+ goto cleanup;
+ else if (idx != ifindex) {
+ ret = 0;
+ goto cleanup;
+ }
+ }
+
+ ret = 1;
+
+ cleanup:
+ VIR_FORCE_CLOSE(fd);
+ return ret;
+}
+#else /* ! __linux__ */
+int virNetDevValidateConfig(const char *ifname ATTRIBUTE_UNUSED,
+ const unsigned char *macaddr ATTRIBUTE_UNUSED,
+ int ifindex ATTRIBUTE_UNUSED)
+{
+ virReportSystemError(ENOSYS, "%s",
+ _("Unable to check interface config on this platform"));
+ return -1;
+}
+#endif /* ! __linux__ */
diff --git a/src/util/virnetdev.h b/src/util/virnetdev.h
index 70ac1a3..d2059af 100644
--- a/src/util/virnetdev.h
+++ b/src/util/virnetdev.h
@@ -84,5 +84,9 @@ int virNetDevGetIndex(const char *ifname, int *ifindex)
int virNetDevGetVLanID(const char *ifname, int *vlanid)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_RETURN_CHECK;
+int virNetDevValidateConfig(const char *ifname,
+ const unsigned char *macaddr, int ifindex)
+ ATTRIBUTE_NONNULL(1) ATTRIBUTE_RETURN_CHECK;
+
#endif /* __VIR_NETDEV_H__ */
--
1.7.6.4
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