From 8c7988b6dbfb0aa05a935e602b8cdb67f7dd60b2 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Mon, 2 Jul 2018 14:47:50 -0500 Subject: [PATCH] net: sandbox-raw: Convert raw eth driver to livetree Signed-off-by: Joe Hershberger Reviewed-by: Simon Glass --- arch/sandbox/cpu/eth-raw-os.c | 28 ++++++++++++++------------- arch/sandbox/include/asm/eth-raw-os.h | 10 ++++++++-- drivers/net/sandbox-raw.c | 26 +++++++++++++++---------- 3 files changed, 39 insertions(+), 25 deletions(-) diff --git a/arch/sandbox/cpu/eth-raw-os.c b/arch/sandbox/cpu/eth-raw-os.c index 4263d8829a..82bf666886 100644 --- a/arch/sandbox/cpu/eth-raw-os.c +++ b/arch/sandbox/cpu/eth-raw-os.c @@ -25,8 +25,8 @@ #include #include -static int _raw_packet_start(const char *ifname, unsigned char *ethmac, - struct eth_sandbox_raw_priv *priv) +static int _raw_packet_start(struct eth_sandbox_raw_priv *priv, + unsigned char *ethmac) { struct sockaddr_ll *device; struct packet_mreq mr; @@ -40,7 +40,8 @@ static int _raw_packet_start(const char *ifname, unsigned char *ethmac, return -ENOMEM; device = priv->device; memset(device, 0, sizeof(struct sockaddr_ll)); - device->sll_ifindex = if_nametoindex(ifname); + device->sll_ifindex = if_nametoindex(priv->host_ifname); + priv->host_ifindex = device->sll_ifindex; device->sll_family = AF_PACKET; memcpy(device->sll_addr, ethmac, 6); device->sll_halen = htons(6); @@ -53,11 +54,11 @@ static int _raw_packet_start(const char *ifname, unsigned char *ethmac, return -errno; } /* Bind to the specified interface */ - ret = setsockopt(priv->sd, SOL_SOCKET, SO_BINDTODEVICE, ifname, - strlen(ifname) + 1); + ret = setsockopt(priv->sd, SOL_SOCKET, SO_BINDTODEVICE, + priv->host_ifname, strlen(priv->host_ifname) + 1); if (ret < 0) { - printf("Failed to bind to '%s': %d %s\n", ifname, errno, - strerror(errno)); + printf("Failed to bind to '%s': %d %s\n", priv->host_ifname, + errno, strerror(errno)); return -errno; } @@ -76,11 +77,12 @@ static int _raw_packet_start(const char *ifname, unsigned char *ethmac, printf("Failed to set promiscuous mode: %d %s\n" "Falling back to the old \"flags\" way...\n", errno, strerror(errno)); - if (strlen(ifname) >= IFNAMSIZ) { - printf("Interface name %s is too long.\n", ifname); + if (strlen(priv->host_ifname) >= IFNAMSIZ) { + printf("Interface name %s is too long.\n", + priv->host_ifname); return -EINVAL; } - strncpy(ifr.ifr_name, ifname, IFNAMSIZ); + strncpy(ifr.ifr_name, priv->host_ifname, IFNAMSIZ); if (ioctl(priv->sd, SIOCGIFFLAGS, &ifr) < 0) { printf("Failed to read flags: %d %s\n", errno, strerror(errno)); @@ -142,13 +144,13 @@ static int _local_inet_start(struct eth_sandbox_raw_priv *priv) return 0; } -int sandbox_eth_raw_os_start(const char *ifname, unsigned char *ethmac, - struct eth_sandbox_raw_priv *priv) +int sandbox_eth_raw_os_start(struct eth_sandbox_raw_priv *priv, + unsigned char *ethmac) { if (priv->local) return _local_inet_start(priv); else - return _raw_packet_start(ifname, ethmac, priv); + return _raw_packet_start(priv, ethmac); } int sandbox_eth_raw_os_send(void *packet, int length, diff --git a/arch/sandbox/include/asm/eth-raw-os.h b/arch/sandbox/include/asm/eth-raw-os.h index f986d3142d..760f5fbedd 100644 --- a/arch/sandbox/include/asm/eth-raw-os.h +++ b/arch/sandbox/include/asm/eth-raw-os.h @@ -9,10 +9,14 @@ #ifndef __ETH_RAW_OS_H #define __ETH_RAW_OS_H +#define IFNAMSIZ 16 + /** * struct eth_sandbox_raw_priv - raw socket session * * sd: socket descriptor - the open socket during a session + * host_ifname: interface name on the host to use for sending our packets + * host_ifindex: interface index number on the host * device: struct sockaddr_ll - the host interface packets move to/from * local: 1 or 0 to select the local interface ('lo') or not * local_bindsd: socket descriptor to prevent the kernel from sending @@ -22,14 +26,16 @@ */ struct eth_sandbox_raw_priv { int sd; + char host_ifname[IFNAMSIZ]; + unsigned int host_ifindex; void *device; int local; int local_bind_sd; unsigned short local_bind_udp_port; }; -int sandbox_eth_raw_os_start(const char *ifname, unsigned char *ethmac, - struct eth_sandbox_raw_priv *priv); +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, struct eth_sandbox_raw_priv *priv); int sandbox_eth_raw_os_recv(void *packet, int *length, diff --git a/drivers/net/sandbox-raw.c b/drivers/net/sandbox-raw.c index 3f8020f629..317e964019 100644 --- a/drivers/net/sandbox-raw.c +++ b/drivers/net/sandbox-raw.c @@ -21,21 +21,16 @@ static int sb_eth_raw_start(struct udevice *dev) { struct eth_sandbox_raw_priv *priv = dev_get_priv(dev); struct eth_pdata *pdata = dev_get_platdata(dev); - const char *interface; + int ret; debug("eth_sandbox_raw: Start\n"); - interface = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), - "host-raw-interface", NULL); - if (interface == NULL) - return -EINVAL; - - if (strcmp(interface, "lo") == 0) { - priv->local = 1; + ret = sandbox_eth_raw_os_start(priv, pdata->enetaddr); + if (priv->local) { env_set("ipaddr", "127.0.0.1"); env_set("serverip", "127.0.0.1"); } - return sandbox_eth_raw_os_start(interface, pdata->enetaddr, priv); + return ret; } static int sb_eth_raw_send(struct udevice *dev, void *packet, int length) @@ -143,8 +138,19 @@ static const struct eth_ops sb_eth_raw_ops = { 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; + + pdata->iobase = dev_read_addr(dev); + + ifname = dev_read_string(dev, "host-raw-interface"); + 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; + } - pdata->iobase = devfdt_get_addr(dev); return 0; } -- 2.39.5