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| author | Michael Bestas <mkbestas@lineageos.org> | 2021-04-19 18:56:01 +0300 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2021-04-19 18:56:01 +0300 |
| commit | f3d4e7ef44f14e433312bc0646ea996d8c8756bf (patch) | |
| tree | 78f6dc67808364d9ad3eae5e4c323a668bb6fadc /drivers/net/tun.c | |
| parent | db1bf2b55b337174e62637e6c23b45f166bdc14e (diff) | |
| parent | f5978a07daf67b25d101caa42ab3b18f0edf3dde (diff) | |
Merge branch 'android-4.4-p' of https://android.googlesource.com/kernel/common into lineage-18.1-caf-msm8998
This brings LA.UM.9.2.r1-02700-SDMxx0.0 up to date with
https://android.googlesource.com/kernel/common/ android-4.4-p at commit:
f5978a07daf67 Merge 4.4.267 into android-4.4-p
Conflicts:
arch/alpha/include/asm/Kbuild
drivers/mmc/core/mmc.c
drivers/usb/gadget/configfs.c
Change-Id: I978d923e97c18f284edbd32c0c19ac70002f7d83
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 93c7024fcc67..dda1bed0c7c9 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -71,6 +71,14 @@ #include <net/sock.h> #include <linux/seq_file.h> #include <linux/uio.h> +#include <linux/ieee802154.h> +#include <linux/if_ltalk.h> +#include <uapi/linux/if_fddi.h> +#include <uapi/linux/if_hippi.h> +#include <uapi/linux/if_fc.h> +#include <net/ax25.h> +#include <net/rose.h> +#include <net/6lowpan.h> #include <asm/uaccess.h> @@ -1889,6 +1897,45 @@ unlock: return ret; } +/* Return correct value for tun->dev->addr_len based on tun->dev->type. */ +static unsigned char tun_get_addr_len(unsigned short type) +{ + switch (type) { + case ARPHRD_IP6GRE: + case ARPHRD_TUNNEL6: + return sizeof(struct in6_addr); + case ARPHRD_IPGRE: + case ARPHRD_TUNNEL: + case ARPHRD_SIT: + return 4; + case ARPHRD_ETHER: + return ETH_ALEN; + case ARPHRD_IEEE802154: + case ARPHRD_IEEE802154_MONITOR: + return IEEE802154_EXTENDED_ADDR_LEN; + case ARPHRD_PHONET_PIPE: + case ARPHRD_PPP: + case ARPHRD_NONE: + return 0; + case ARPHRD_6LOWPAN: + return EUI64_ADDR_LEN; + case ARPHRD_FDDI: + return FDDI_K_ALEN; + case ARPHRD_HIPPI: + return HIPPI_ALEN; + case ARPHRD_IEEE802: + return FC_ALEN; + case ARPHRD_ROSE: + return ROSE_ADDR_LEN; + case ARPHRD_NETROM: + return AX25_ADDR_LEN; + case ARPHRD_LOCALTLK: + return LTALK_ALEN; + default: + return 0; + } +} + static long __tun_chr_ioctl(struct file *file, unsigned int cmd, unsigned long arg, int ifreq_len) { @@ -2033,6 +2080,7 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd, ret = -EBUSY; } else { tun->dev->type = (int) arg; + tun->dev->addr_len = tun_get_addr_len(tun->dev->type); tun_debug(KERN_INFO, tun, "linktype set to %d\n", tun->dev->type); ret = 0; |