diff options
| -rw-r--r-- | arch/sandbox/cpu/eth-raw-os.c | 27 | ||||
| -rw-r--r-- | arch/sandbox/include/asm/eth-raw-os.h | 8 | ||||
| -rw-r--r-- | drivers/net/sandbox-raw.c | 10 |
3 files changed, 39 insertions, 6 deletions
diff --git a/arch/sandbox/cpu/eth-raw-os.c b/arch/sandbox/cpu/eth-raw-os.c index 82bf666..12ddb34 100644 --- a/arch/sandbox/cpu/eth-raw-os.c +++ b/arch/sandbox/cpu/eth-raw-os.c @@ -1,9 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* - * Copyright (c) 2015 National Instruments - * - * (C) Copyright 2015 - * Joe Hershberger <joe.hershberger@ni.com> + * Copyright (c) 2015-2018 National Instruments + * Copyright (c) 2015-2018 Joe Hershberger <joe.hershberger@ni.com> */ #include <asm/eth-raw-os.h> @@ -25,6 +23,27 @@ #include <linux/if_ether.h> #include <linux/if_packet.h> +int sandbox_eth_raw_os_is_local(const char *ifname) +{ + int fd = socket(AF_INET, SOCK_DGRAM, 0); + struct ifreq ifr; + int ret = 0; + + if (fd < 0) + return -errno; + memset(&ifr, 0, sizeof(ifr)); + strncpy(ifr.ifr_name, ifname, IFNAMSIZ); + ret = ioctl(fd, SIOCGIFFLAGS, &ifr); + if (ret < 0) { + ret = -errno; + goto out; + } + ret = !!(ifr.ifr_flags & IFF_LOOPBACK); +out: + close(fd); + return ret; +} + static int _raw_packet_start(struct eth_sandbox_raw_priv *priv, unsigned char *ethmac) { diff --git a/arch/sandbox/include/asm/eth-raw-os.h b/arch/sandbox/include/asm/eth-raw-os.h index 760f5fb..edd09d2 100644 --- a/arch/sandbox/include/asm/eth-raw-os.h +++ b/arch/sandbox/include/asm/eth-raw-os.h @@ -34,6 +34,14 @@ struct eth_sandbox_raw_priv { unsigned short local_bind_udp_port; }; +/* + * Check if the interface named "ifname" is a localhost interface or not. + * ifname - the interface name on the host to check + * + * returns - 0 if real interface, 1 if local, negative if error + */ +int sandbox_eth_raw_os_is_local(const char *ifname); + int sandbox_eth_raw_os_start(struct eth_sandbox_raw_priv *priv, unsigned char *ethmac); int sandbox_eth_raw_os_send(void *packet, int length, diff --git a/drivers/net/sandbox-raw.c b/drivers/net/sandbox-raw.c index 317e964..c04b94c 100644 --- a/drivers/net/sandbox-raw.c +++ b/drivers/net/sandbox-raw.c @@ -29,6 +29,8 @@ static int sb_eth_raw_start(struct udevice *dev) if (priv->local) { env_set("ipaddr", "127.0.0.1"); env_set("serverip", "127.0.0.1"); + net_ip = string_to_ip("127.0.0.1"); + net_server_ip = net_ip; } return ret; } @@ -140,6 +142,7 @@ static int sb_eth_raw_ofdata_to_platdata(struct udevice *dev) struct eth_pdata *pdata = dev_get_platdata(dev); struct eth_sandbox_raw_priv *priv = dev_get_priv(dev); const char *ifname; + u32 local; pdata->iobase = dev_read_addr(dev); @@ -147,10 +150,13 @@ static int sb_eth_raw_ofdata_to_platdata(struct udevice *dev) if (ifname) { strncpy(priv->host_ifname, ifname, IFNAMSIZ); printf(": Using %s from DT\n", priv->host_ifname); - if (strcmp(ifname, "lo") == 0) - priv->local = 1; } + local = sandbox_eth_raw_os_is_local(priv->host_ifname); + if (local < 0) + return local; + priv->local = local; + return 0; } |