/*
- * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
return !!shash_find_data(&netdev_dev_shash, name);
}
-/* Clears 'sset' and enumerates the names of all known network devices. */
-int
-netdev_enumerate(struct sset *sset)
+/* Parses 'netdev_name_', which is of the form [type@]name into its component
+ * pieces. 'name' and 'type' must be freed by the caller. */
+void
+netdev_parse_name(const char *netdev_name_, char **name, char **type)
{
- struct shash_node *node;
- int error = 0;
+ char *netdev_name = xstrdup(netdev_name_);
+ char *separator;
- netdev_initialize();
- sset_clear(sset);
-
- SHASH_FOR_EACH(node, &netdev_classes) {
- const struct netdev_class *netdev_class = node->data;
- if (netdev_class->enumerate) {
- int retval = netdev_class->enumerate(sset);
- if (retval) {
- VLOG_WARN("failed to enumerate %s network devices: %s",
- netdev_class->type, strerror(retval));
- if (!error) {
- error = retval;
- }
- }
- }
+ separator = strchr(netdev_name, '@');
+ if (separator) {
+ *separator = '\0';
+ *type = netdev_name;
+ *name = xstrdup(separator + 1);
+ } else {
+ *name = netdev_name;
+ *type = xstrdup("system");
}
-
- return error;
}
/* Attempts to set up 'netdev' for receiving packets with netdev_recv().
*
* If successful, returns 0 and stores the MTU size in '*mtup'. Returns
* EOPNOTSUPP if 'netdev' does not have an MTU (as e.g. some tunnels do not).
- * On other failure, returns a positive errno value. */
+ * On other failure, returns a positive errno value. On failure, sets '*mtup'
+ * to 0. */
int
netdev_get_mtu(const struct netdev *netdev, int *mtup)
{
- int error = netdev_get_dev(netdev)->netdev_class->get_mtu(netdev, mtup);
- if (error && error != EOPNOTSUPP) {
- VLOG_WARN_RL(&rl, "failed to retrieve MTU for network device %s: %s",
- netdev_get_name(netdev), strerror(error));
+ const struct netdev_class *class = netdev_get_dev(netdev)->netdev_class;
+ int error;
+
+ error = class->get_mtu ? class->get_mtu(netdev, mtup) : EOPNOTSUPP;
+ if (error) {
+ *mtup = 0;
+ if (error != EOPNOTSUPP) {
+ VLOG_WARN_RL(&rl, "failed to retrieve MTU for network device %s: "
+ "%s", netdev_get_name(netdev), strerror(error));
+ }
}
return error;
}
int
netdev_set_mtu(const struct netdev *netdev, int mtu)
{
- int error = netdev_get_dev(netdev)->netdev_class->set_mtu(netdev, mtu);
+ const struct netdev_class *class = netdev_get_dev(netdev)->netdev_class;
+ int error;
+ error = class->set_mtu ? class->set_mtu(netdev, mtu) : EOPNOTSUPP;
if (error && error != EOPNOTSUPP) {
- VLOG_WARN_RL(&rl, "failed to retrieve MTU for network device %s: %s",
+ VLOG_WARN_RL(&rl, "failed to set MTU for network device %s: %s",
netdev_get_name(netdev), strerror(error));
}
* cases this function will always return EOPNOTSUPP. */
int
netdev_get_features(const struct netdev *netdev,
- uint32_t *current, uint32_t *advertised,
- uint32_t *supported, uint32_t *peer)
+ enum netdev_features *current,
+ enum netdev_features *advertised,
+ enum netdev_features *supported,
+ enum netdev_features *peer)
{
int (*get_features)(const struct netdev *netdev,
- uint32_t *current, uint32_t *advertised,
- uint32_t *supported, uint32_t *peer);
- uint32_t dummy[4];
+ enum netdev_features *current,
+ enum netdev_features *advertised,
+ enum netdev_features *supported,
+ enum netdev_features *peer);
+ enum netdev_features dummy[4];
int error;
if (!current) {
return error;
}
-/* Returns the maximum speed of a network connection that has the "enum
- * ofp_port_features" bits in 'features', in bits per second. If no bits that
- * indicate a speed are set in 'features', assumes 100Mbps. */
+/* Returns the maximum speed of a network connection that has the NETDEV_F_*
+ * bits in 'features', in bits per second. If no bits that indicate a speed
+ * are set in 'features', assumes 100Mbps. */
uint64_t
-netdev_features_to_bps(uint32_t features)
+netdev_features_to_bps(enum netdev_features features)
{
enum {
- F_10000MB = OFPPF_10GB_FD,
- F_1000MB = OFPPF_1GB_HD | OFPPF_1GB_FD,
- F_100MB = OFPPF_100MB_HD | OFPPF_100MB_FD,
- F_10MB = OFPPF_10MB_HD | OFPPF_10MB_FD
+ F_1000000MB = NETDEV_F_1TB_FD,
+ F_100000MB = NETDEV_F_100GB_FD,
+ F_40000MB = NETDEV_F_40GB_FD,
+ F_10000MB = NETDEV_F_10GB_FD,
+ F_1000MB = NETDEV_F_1GB_HD | NETDEV_F_1GB_FD,
+ F_100MB = NETDEV_F_100MB_HD | NETDEV_F_100MB_FD,
+ F_10MB = NETDEV_F_10MB_HD | NETDEV_F_10MB_FD
};
- return ( features & F_10000MB ? UINT64_C(10000000000)
- : features & F_1000MB ? UINT64_C(1000000000)
- : features & F_100MB ? UINT64_C(100000000)
- : features & F_10MB ? UINT64_C(10000000)
- : UINT64_C(100000000));
+ return ( features & F_1000000MB ? UINT64_C(1000000000000)
+ : features & F_100000MB ? UINT64_C(100000000000)
+ : features & F_40000MB ? UINT64_C(40000000000)
+ : features & F_10000MB ? UINT64_C(10000000000)
+ : features & F_1000MB ? UINT64_C(1000000000)
+ : features & F_100MB ? UINT64_C(100000000)
+ : features & F_10MB ? UINT64_C(10000000)
+ : UINT64_C(100000000));
}
-/* Returns true if any of the "enum ofp_port_features" bits that indicate a
- * full-duplex link are set in 'features', otherwise false. */
+/* Returns true if any of the NETDEV_F_* bits that indicate a full-duplex link
+ * are set in 'features', otherwise false. */
bool
-netdev_features_is_full_duplex(uint32_t features)
+netdev_features_is_full_duplex(enum netdev_features features)
{
- return (features & (OFPPF_10MB_FD | OFPPF_100MB_FD | OFPPF_1GB_FD
- | OFPPF_10GB_FD)) != 0;
+ return (features & (NETDEV_F_10MB_FD | NETDEV_F_100MB_FD | NETDEV_F_1GB_FD
+ | NETDEV_F_10GB_FD | NETDEV_F_40GB_FD
+ | NETDEV_F_100GB_FD | NETDEV_F_1TB_FD)) != 0;
}
/* Set the features advertised by 'netdev' to 'advertise'. Returns 0 if
* successful, otherwise a positive errno value. */
int
-netdev_set_advertisements(struct netdev *netdev, uint32_t advertise)
+netdev_set_advertisements(struct netdev *netdev,
+ enum netdev_features advertise)
{
return (netdev_get_dev(netdev)->netdev_class->set_advertisements
? netdev_get_dev(netdev)->netdev_class->set_advertisements(
: EOPNOTSUPP);
}
+/* Obtains ad IPv4 address from device name and save the address in
+ * in4. Returns 0 if successful, otherwise a positive errno value.
+ */
+int
+netdev_get_in4_by_name(const char *device_name, struct in_addr *in4)
+{
+ struct netdev *netdev;
+ int error;
+
+ error = netdev_open(device_name, "system", &netdev);
+ if (error) {
+ in4->s_addr = htonl(0);
+ return error;
+ }
+
+ error = netdev_get_in4(netdev, in4, NULL);
+ netdev_close(netdev);
+ return error;
+}
+
/* Adds 'router' as a default IP gateway for the TCP/IP stack that corresponds
* to 'netdev'. */
int
return carrier;
}
+/* Returns the number of times 'netdev''s carrier has changed. */
+long long int
+netdev_get_carrier_resets(const struct netdev *netdev)
+{
+ return (netdev_get_dev(netdev)->netdev_class->get_carrier_resets
+ ? netdev_get_dev(netdev)->netdev_class->get_carrier_resets(netdev)
+ : 0);
+}
+
/* Attempts to force netdev_get_carrier() to poll 'netdev''s MII registers for
* link status instead of checking 'netdev''s carrier. 'netdev''s MII
* registers will be polled once ever 'interval' milliseconds. If 'netdev'
{
return netdev_get_dev(netdev)->netdev_class->change_seq(netdev);
}
-
-/* If 'netdev' is a VLAN network device (e.g. one created with vconfig(8)),
- * sets '*vlan_vid' to the VLAN VID associated with that device and returns 0.
- * Otherwise returns a errno value (specifically ENOENT if 'netdev_name' is the
- * name of a network device that is not a VLAN device) and sets '*vlan_vid' to
- * -1. */
-int
-netdev_get_vlan_vid(const struct netdev *netdev, int *vlan_vid)
-{
- int error = (netdev_get_dev(netdev)->netdev_class->get_vlan_vid
- ? netdev_get_dev(netdev)->netdev_class->get_vlan_vid(netdev,
- vlan_vid)
- : ENOENT);
- if (error) {
- *vlan_vid = 0;
- }
- return error;
-}
-
-/* Returns a network device that has 'in4' as its IP address, if one exists,
- * otherwise a null pointer. */
-struct netdev *
-netdev_find_dev_by_in4(const struct in_addr *in4)
-{
- struct netdev *netdev;
- struct sset dev_list = SSET_INITIALIZER(&dev_list);
- const char *name;
-
- netdev_enumerate(&dev_list);
- SSET_FOR_EACH (name, &dev_list) {
- struct in_addr dev_in4;
-
- if (!netdev_open(name, "system", &netdev)
- && !netdev_get_in4(netdev, &dev_in4, NULL)
- && dev_in4.s_addr == in4->s_addr) {
- goto exit;
- }
- netdev_close(netdev);
- }
- netdev = NULL;
-
-exit:
- sset_destroy(&dev_list);
- return netdev;
-}
\f
/* Initializes 'netdev_dev' as a netdev device named 'name' of the specified
* 'netdev_class'. This function is ordinarily called from a netdev provider's