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sandbox: eth-raw: Add a SIMPLE_BUS to enumerate host interfaces

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Ask the OS for each of its interfaces and for each one, bind a U-Boot
device and then probe it. This will allocate the priv data structure
that is then populated.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Joe Hershberger
2018-07-02 14:47:54 -05:00
parent b96ced9cdb
commit f40a31e695
6 changed files with 98 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
arch/sandbox/cpu/eth-raw-os.c
View File

@@ -23,6 +23,16 @@
#include <linux/if_ether.h>
#include <linux/if_packet.h>
struct sandbox_eth_raw_if_nameindex *sandbox_eth_raw_if_nameindex(void)
{
return (struct sandbox_eth_raw_if_nameindex *)if_nameindex();
}
void sandbox_eth_raw_if_freenameindex(struct sandbox_eth_raw_if_nameindex *ptr)
{
if_freenameindex((struct if_nameindex *)ptr);
}
int sandbox_eth_raw_os_is_local(const char *ifname)
{
int fd = socket(AF_INET, SOCK_DGRAM, 0);

18
arch/sandbox/dts/sandbox.dts
View File

@@ -8,7 +8,6 @@
model = "sandbox";
aliases {
eth5 = "/eth@90000000";
i2c0 = &i2c_0;
pci0 = &pci;
rtc0 = &rtc_0;
@@ -47,24 +46,17 @@
};
};
ethrawbus {
compatible = "sandbox,eth-raw-bus";
skip-localhost = <0>;
};
eth@10002000 {
compatible = "sandbox,eth";
reg = <0x10002000 0x1000>;
fake-host-hwaddr = [00 00 66 44 22 00];
};
eth@80000000 {
compatible = "sandbox,eth-raw";
reg = <0x80000000 0x1000>;
host-raw-interface = "eth0";
};
eth@90000000 {
compatible = "sandbox,eth-raw";
reg = <0x90000000 0x1000>;
host-raw-interface = "lo";
};
gpio_a: gpios@0 {
gpio-controller;
compatible = "sandbox,gpio";

18
arch/sandbox/dts/sandbox64.dts
View File

@@ -8,7 +8,6 @@
model = "sandbox";
aliases {
eth5 = "/eth@90000000";
i2c0 = &i2c_0;
pci0 = &pci;
rtc0 = &rtc_0;
@@ -47,24 +46,17 @@
};
};
ethrawbus {
compatible = "sandbox,eth-raw-bus";
skip-localhost = <1>;
};
eth@10002000 {
compatible = "sandbox,eth";
reg = <0x0 0x10002000 0x0 0x1000>;
fake-host-hwaddr = [00 00 66 44 22 00];
};
eth@80000000 {
compatible = "sandbox,eth-raw";
reg = <0x0 0x80000000 0x0 0x1000>;
host-raw-interface = "eth0";
};
eth@90000000 {
compatible = "sandbox,eth-raw";
reg = <0x0 0x90000000 0x0 0x1000>;
host-raw-interface = "lo";
};
gpio_a: gpios@0 {
gpio-controller;
compatible = "sandbox,gpio";

11
arch/sandbox/include/asm/eth-raw-os.h
View File

@@ -34,6 +34,17 @@ struct eth_sandbox_raw_priv {
unsigned short local_bind_udp_port;
};
/* A struct to mimic if_nameindex but that does not depend on Linux headers */
struct sandbox_eth_raw_if_nameindex {
unsigned int if_index; /* Index of interface (1, 2, ...) */
char *if_name; /* Null-terminated name ("eth0", etc.) */
};
/* Enumerate host network interfaces */
struct sandbox_eth_raw_if_nameindex *sandbox_eth_raw_if_nameindex(void);
/* Free the data structure of enumerated network interfaces */
void sandbox_eth_raw_if_freenameindex(struct sandbox_eth_raw_if_nameindex *ptr);
/*
* Check if the interface named "ifname" is a localhost interface or not.
* ifname - the interface name on the host to check