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Provide a Kconfig option to select default network interface #6074

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Merged
merged 1 commit into from
Feb 9, 2018
Merged

Provide a Kconfig option to select default network interface #6074

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33 changes: 33 additions & 0 deletions subsys/net/ip/Kconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -349,6 +349,39 @@ config NET_BUF_USER_DATA_SIZE
Example: For Bluetooth, the user_data shall be at least 4 bytes as
that is used for identifying the type of data they are carrying.

choice
prompt "Default Network Interface"
default NET_DEFAULT_IF_FIRST
help
If system has multiple interfaces enabled, then user shall be able
to choose default interface. Otherwise first interface will be the
default interface.

config NET_DEFAULT_IF_FIRST
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@pfalcon pfalcon Feb 9, 2018

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Thanks for making this change.

bool "First available interface"

config NET_DEFAULT_IF_ETHERNET
bool "Ethernet"
depends on NET_L2_ETHERNET

config NET_DEFAULT_IF_BLUETOOTH
bool "Bluetooth"
depends on NET_L2_BT

config NET_DEFAULT_IF_IEEE802154
bool "IEEE 802.15.4"
depends on NET_L2_IEEE802154

config NET_DEFAULT_IF_OFFLOAD
bool "Offloaded interface"
depends on NET_L2_OFFLOAD

config NET_DEFAULT_IF_DUMMY
bool "Dummy testing interface"
depends on NET_L2_DUMMY

endchoice

source "subsys/net/ip/Kconfig.stack"

source "subsys/net/ip/l2/Kconfig"
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20 changes: 19 additions & 1 deletion subsys/net/ip/net_if.c
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Expand Up @@ -367,11 +367,29 @@ struct net_if *net_if_lookup_by_dev(struct device *dev)

struct net_if *net_if_get_default(void)
{
struct net_if *iface = NULL;

if (__net_if_start == __net_if_end) {
return NULL;
}

return __net_if_start;
#if defined(CONFIG_NET_DEFAULT_IF_ETHERNET)
iface = net_if_get_first_by_type(&NET_L2_GET_NAME(ETHERNET));
#endif
#if defined(CONFIG_NET_DEFAULT_IF_IEEE802154)
iface = net_if_get_first_by_type(&NET_L2_GET_NAME(IEEE802154));
#endif
#if defined(CONFIG_NET_DEFAULT_IF_BLUETOOTH)
iface = net_if_get_first_by_type(&NET_L2_GET_NAME(BLUETOOTH));
#endif
#if defined(CONFIG_NET_DEFAULT_IF_DUMMY)
iface = net_if_get_first_by_type(&NET_L2_GET_NAME(DUMMY));
#endif
#if defined(CONFIG_NET_DEFAULT_IF_OFFLOAD)
iface = net_if_get_first_by_type(&NET_L2_GET_NAME(OFFLOAD_IP));
#endif

return iface ? iface : __net_if_start;
}

struct net_if *net_if_get_first_by_type(const struct net_l2 *l2)
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