diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-20 11:55:12 +0100 |
| commit | bf5f48339a019c9b4b42284c3f45d58942cbda27 (patch) | |
| tree | 79976135166ffbdaf4ccb91bcadb17ddb551f060 /drivers/net/tun.c | |
| parent | d85dad75566674ca8012715ac00a84ced3697972 (diff) | |
| parent | 35582ad9d342025653aaf28ed321bf5352488d7f (diff) | |
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index bcf01af4b87..44c4db8450f 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -69,6 +69,7 @@ #include <net/netns/generic.h> #include <net/rtnetlink.h> #include <net/sock.h> +#include <linux/seq_file.h> #include <asm/uaccess.h> @@ -2228,6 +2229,27 @@ static int tun_chr_close(struct inode *inode, struct file *file) return 0; } +#ifdef CONFIG_PROC_FS +static int tun_chr_show_fdinfo(struct seq_file *m, struct file *f) +{ + struct tun_struct *tun; + struct ifreq ifr; + + memset(&ifr, 0, sizeof(ifr)); + + rtnl_lock(); + tun = tun_get(f); + if (tun) + tun_get_iff(current->nsproxy->net_ns, tun, &ifr); + rtnl_unlock(); + + if (tun) + tun_put(tun); + + return seq_printf(m, "iff:\t%s\n", ifr.ifr_name); +} +#endif + static const struct file_operations tun_fops = { .owner = THIS_MODULE, .llseek = no_llseek, @@ -2242,7 +2264,10 @@ static const struct file_operations tun_fops = { #endif .open = tun_chr_open, .release = tun_chr_close, - .fasync = tun_chr_fasync + .fasync = tun_chr_fasync, +#ifdef CONFIG_PROC_FS + .show_fdinfo = tun_chr_show_fdinfo, +#endif }; static struct miscdevice tun_miscdev = { |