svn commit: r347204 - head/sys/compat/linsysfs
Rodney W. Grimes
freebsd at gndrsh.dnsmgr.net
Mon May 6 20:53:12 UTC 2019
> Author: dchagin
> Date: Mon May 6 20:01:13 2019
> New Revision: 347204
> URL: https://svnweb.freebsd.org/changeset/base/347204
>
> Log:
> Adds sys/class/net devices to linsysfs.
>
> Only two interfaces are created eth0 and lo and they expose
> the following properties:
> address, addr_len, flags, ifindex, mty, tx_queue_len and type.
>
> Initial patch developed by Carlos Neira in 2017 and finished by me.
>
> PR: 223722
> MFC after: 2 weeks
> Differential Revision: https://reviews.freebsd.org/D13656
>
> Modified:
> head/sys/compat/linsysfs/linsysfs.c
>
> Modified: head/sys/compat/linsysfs/linsysfs.c
> ==============================================================================
> --- head/sys/compat/linsysfs/linsysfs.c Mon May 6 19:57:51 2019 (r347203)
> +++ head/sys/compat/linsysfs/linsysfs.c Mon May 6 20:01:13 2019 (r347204)
> @@ -2,6 +2,7 @@
> * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
> *
> * Copyright (c) 2006 IronPort Systems
> + * Copyright (c) 2017 Carlos Neira cneirabustos at gmail.com
> * All rights reserved.
Inproper insertion of copyright, this seperates IronPort Systems
from the All rights reserved clause, and makes it seem as if
Carlos Neira is asserting it. That needs sorted out and resolved.
Thanks,
Rod
> *
> * Redistribution and use in source and binary forms, with or without
> @@ -31,6 +32,7 @@ __FBSDID("$FreeBSD$");
>
> #include <sys/param.h>
> #include <sys/systm.h>
> +#include <sys/ctype.h>
> #include <sys/kernel.h>
> #include <sys/malloc.h>
> #include <sys/mount.h>
> @@ -44,7 +46,11 @@ __FBSDID("$FreeBSD$");
> #include <dev/pci/pcireg.h>
>
> #include <net/if.h>
> +#include <net/if_var.h>
> +#include <net/if_dl.h>
>
> +#include <compat/linux/linux.h>
> +#include <compat/linux/linux_common.h>
> #include <compat/linux/linux_util.h>
> #include <fs/pseudofs/pseudofs.h>
>
> @@ -64,6 +70,146 @@ atoi(const char *str)
> return (int)strtol(str, (char **)NULL, 10);
> }
>
> +static int
> +linsysfs_ifnet_addr(PFS_FILL_ARGS)
> +{
> + struct l_sockaddr lsa;
> + struct ifnet *ifp;
> +
> + ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
> + if (ifp == NULL)
> + return (ENOENT);
> + if (linux_ifhwaddr(ifp, &lsa) != 0)
> + return (ENOENT);
> + sbuf_printf(sb, "%02hhx:%02hhx:%02hhx:%02hhx:%02hhx:%02hhx\n",
> + lsa.sa_data[0], lsa.sa_data[1], lsa.sa_data[2],
> + lsa.sa_data[3], lsa.sa_data[4], lsa.sa_data[5]);
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_addrlen(PFS_FILL_ARGS)
> +{
> +
> + sbuf_printf(sb, "%d\n", LINUX_IFHWADDRLEN);
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_flags(PFS_FILL_ARGS)
> +{
> + struct ifnet *ifp;
> + unsigned short flags;
> +
> + ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
> + if (ifp == NULL)
> + return (ENOENT);
> + linux_ifflags(ifp, &flags);
> + sbuf_printf(sb, "0x%x\n", flags);
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_ifindex(PFS_FILL_ARGS)
> +{
> + struct ifnet *ifp;
> +
> + ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
> + if (ifp == NULL)
> + return (ENOENT);
> + sbuf_printf(sb, "%u\n", ifp->if_index);
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_mtu(PFS_FILL_ARGS)
> +{
> + struct ifnet *ifp;
> +
> + ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
> + if (ifp == NULL)
> + return (ENOENT);
> + sbuf_printf(sb, "%u\n", ifp->if_mtu);
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_tx_queue_len(PFS_FILL_ARGS)
> +{
> +
> + /* XXX */
> + sbuf_printf(sb, "1000\n");
> + return (0);
> +}
> +
> +static int
> +linsysfs_ifnet_type(PFS_FILL_ARGS)
> +{
> + struct l_sockaddr lsa;
> + struct ifnet *ifp;
> +
> + ifp = ifname_linux_to_bsd(td, pn->pn_parent->pn_name, NULL);
> + if (ifp == NULL)
> + return (ENOENT);
> + if (linux_ifhwaddr(ifp, &lsa) != 0)
> + return (ENOENT);
> + sbuf_printf(sb, "%d\n", lsa.sa_family);
> + return (0);
> +}
> +
> +static void
> +linsysfs_listnics(struct pfs_node *dir)
> +{
> + struct pfs_node *nic;
> + struct pfs_node *lo;
> +
> + nic = pfs_create_dir(dir, "eth0", NULL, NULL, NULL, 0);
> +
> + pfs_create_file(nic, "address", &linsysfs_ifnet_addr,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "addr_len", &linsysfs_ifnet_addrlen,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "flags", &linsysfs_ifnet_flags,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "ifindex", &linsysfs_ifnet_ifindex,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "mtu", &linsysfs_ifnet_mtu,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(nic, "type", &linsysfs_ifnet_type,
> + NULL, NULL, NULL, PFS_RD);
> +
> + lo = pfs_create_dir(dir, "lo", NULL, NULL, NULL, 0);
> +
> + pfs_create_file(lo, "address", &linsysfs_ifnet_addr,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "addr_len", &linsysfs_ifnet_addrlen,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "flags", &linsysfs_ifnet_flags,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "ifindex", &linsysfs_ifnet_ifindex,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "mtu", &linsysfs_ifnet_mtu,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "tx_queue_len", &linsysfs_ifnet_tx_queue_len,
> + NULL, NULL, NULL, PFS_RD);
> +
> + pfs_create_file(lo, "type", &linsysfs_ifnet_type,
> + NULL, NULL, NULL, PFS_RD);
> +}
> +
> /*
> * Filler function for proc_name
> */
> @@ -475,6 +621,7 @@ linsysfs_init(PFS_INIT_ARGS)
> struct pfs_node *drm;
> struct pfs_node *pci;
> struct pfs_node *scsi;
> + struct pfs_node *net;
> struct pfs_node *devdir, *chardev;
> devclass_t devclass;
> device_t dev;
> @@ -488,6 +635,9 @@ linsysfs_init(PFS_INIT_ARGS)
> scsi = pfs_create_dir(class, "scsi_host", NULL, NULL, NULL, 0);
> drm = pfs_create_dir(class, "drm", NULL, NULL, NULL, 0);
>
> + /* /sys/class/net/.. */
> + net = pfs_create_dir(class, "net", NULL, NULL, NULL, 0);
> +
> /* /sys/dev/... */
> devdir = pfs_create_dir(root, "dev", NULL, NULL, NULL, 0);
> chardev = pfs_create_dir(devdir, "char", NULL, NULL, NULL, 0);
> @@ -518,6 +668,7 @@ linsysfs_init(PFS_INIT_ARGS)
> NULL, NULL, NULL, PFS_RD);
>
> linsysfs_listcpus(cpu);
> + linsysfs_listnics(net);
>
> return (0);
> }
>
>
--
Rod Grimes rgrimes at freebsd.org
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