diff options
author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:40:14 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-11 19:40:14 -0700 |
commit | 038a5008b2f395c85e6e71d6ddf3c684e7c405b0 (patch) | |
tree | 4735eab577e97e5a22c3141e3f60071c8065585e /drivers/net/tun.c | |
parent | dd6d1844af33acb4edd0a40b1770d091a22c94be (diff) | |
parent | 266918303226cceac7eca38ced30f15f277bd89c (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits)
[SKY2]: status polling loop (post merge)
[NET]: Fix NAPI completion handling in some drivers.
[TCP]: Limit processing lost_retrans loop to work-to-do cases
[TCP]: Fix lost_retrans loop vs fastpath problems
[TCP]: No need to re-count fackets_out/sacked_out at RTO
[TCP]: Extract tcp_match_queue_to_sack from sacktag code
[TCP]: Kill almost unused variable pcount from sacktag
[TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L
[TCP]: Add bytes_acked (ABC) clearing to FRTO too
[IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2
[NETFILTER]: x_tables: add missing ip6t_modulename aliases
[NETFILTER]: nf_conntrack_tcp: fix connection reopening
[QETH]: fix qeth_main.c
[NETLINK]: fib_frontend build fixes
[IPv6]: Export userland ND options through netlink (RDNSS support)
[9P]: build fix with !CONFIG_SYSCTL
[NET]: Fix dev_put() and dev_hold() comments
[NET]: make netlink user -> kernel interface synchronious
[NET]: unify netlink kernel socket recognition
[NET]: cleanup 3rd argument in netlink_sendskb
...
Fix up conflicts manually in Documentation/feature-removal-schedule.txt
and my new least favourite crap, the "mod_devicetable" support in the
files include/linux/mod_devicetable.h and scripts/mod/file2alias.c.
(The latter files seem to be explicitly _designed_ to get conflicts when
different subsystems work with them - that have an absolutely horrid
lack of subsystem separation!)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/net/tun.c')
-rw-r--r-- | drivers/net/tun.c | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 62b2b300501..1f764469597 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -62,6 +62,7 @@ #include <linux/if_ether.h> #include <linux/if_tun.h> #include <linux/crc32.h> +#include <net/net_namespace.h> #include <asm/system.h> #include <asm/uaccess.h> @@ -109,7 +110,7 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) /* We won't see all dropped packets individually, so overrun * error is more appropriate. */ - tun->stats.tx_fifo_errors++; + dev->stats.tx_fifo_errors++; } else { /* Single queue mode. * Driver handles dropping of all packets itself. */ @@ -128,7 +129,7 @@ static int tun_net_xmit(struct sk_buff *skb, struct net_device *dev) return 0; drop: - tun->stats.tx_dropped++; + dev->stats.tx_dropped++; kfree_skb(skb); return 0; } @@ -158,23 +159,28 @@ tun_net_mclist(struct net_device *dev) struct tun_struct *tun = netdev_priv(dev); const struct dev_mc_list *mclist; int i; + DECLARE_MAC_BUF(mac); DBG(KERN_DEBUG "%s: tun_net_mclist: mc_count %d\n", dev->name, dev->mc_count); memset(tun->chr_filter, 0, sizeof tun->chr_filter); for (i = 0, mclist = dev->mc_list; i < dev->mc_count && mclist != NULL; i++, mclist = mclist->next) { add_multi(tun->net_filter, mclist->dmi_addr); - DBG(KERN_DEBUG "%s: tun_net_mclist: %x:%x:%x:%x:%x:%x\n", - dev->name, - mclist->dmi_addr[0], mclist->dmi_addr[1], mclist->dmi_addr[2], - mclist->dmi_addr[3], mclist->dmi_addr[4], mclist->dmi_addr[5]); + DBG(KERN_DEBUG "%s: tun_net_mclist: %s\n", + dev->name, print_mac(mac, mclist->dmi_addr)); } } -static struct net_device_stats *tun_net_stats(struct net_device *dev) +#define MIN_MTU 68 +#define MAX_MTU 65535 + +static int +tun_net_change_mtu(struct net_device *dev, int new_mtu) { - struct tun_struct *tun = netdev_priv(dev); - return &tun->stats; + if (new_mtu < MIN_MTU || new_mtu + dev->hard_header_len > MAX_MTU) + return -EINVAL; + dev->mtu = new_mtu; + return 0; } /* Initialize net device. */ @@ -188,6 +194,7 @@ static void tun_net_init(struct net_device *dev) dev->hard_header_len = 0; dev->addr_len = 0; dev->mtu = 1500; + dev->change_mtu = tun_net_change_mtu; /* Zero header length */ dev->type = ARPHRD_NONE; @@ -200,6 +207,7 @@ static void tun_net_init(struct net_device *dev) dev->set_multicast_list = tun_net_mclist; ether_setup(dev); + dev->change_mtu = tun_net_change_mtu; /* random address already created for us by tun_set_iff, use it */ memcpy(dev->dev_addr, tun->dev_addr, min(sizeof(tun->dev_addr), sizeof(dev->dev_addr)) ); @@ -249,14 +257,14 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, align = NET_IP_ALIGN; if (!(skb = alloc_skb(len + align, GFP_KERNEL))) { - tun->stats.rx_dropped++; + tun->dev->stats.rx_dropped++; return -ENOMEM; } if (align) skb_reserve(skb, align); if (memcpy_fromiovec(skb_put(skb, len), iv, len)) { - tun->stats.rx_dropped++; + tun->dev->stats.rx_dropped++; kfree_skb(skb); return -EFAULT; } @@ -278,8 +286,8 @@ static __inline__ ssize_t tun_get_user(struct tun_struct *tun, struct iovec *iv, netif_rx_ni(skb); tun->dev->last_rx = jiffies; - tun->stats.rx_packets++; - tun->stats.rx_bytes += len; + tun->dev->stats.rx_packets++; + tun->dev->stats.rx_bytes += len; return count; } @@ -335,8 +343,8 @@ static __inline__ ssize_t tun_put_user(struct tun_struct *tun, skb_copy_datagram_iovec(skb, 0, iv, len); total += len; - tun->stats.tx_packets++; - tun->stats.tx_bytes += len; + tun->dev->stats.tx_packets++; + tun->dev->stats.tx_bytes += len; return total; } @@ -349,6 +357,7 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv, DECLARE_WAITQUEUE(wait, current); struct sk_buff *skb; ssize_t len, ret = 0; + DECLARE_MAC_BUF(mac); if (!tun) return -EBADFD; @@ -403,16 +412,14 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv, (addr[0] == 0x33 && addr[1] == 0x33)) && ((tun->if_flags & IFF_ALLMULTI) || (tun->chr_filter[bit_nr >> 5] & (1 << (bit_nr & 31)))))) { - DBG(KERN_DEBUG "%s: tun_chr_readv: accepted: %x:%x:%x:%x:%x:%x\n", - tun->dev->name, addr[0], addr[1], addr[2], - addr[3], addr[4], addr[5]); + DBG(KERN_DEBUG "%s: tun_chr_readv: accepted: %s\n", + tun->dev->name, print_mac(mac, addr)); ret = tun_put_user(tun, skb, (struct iovec *) iv, len); kfree_skb(skb); break; } else { - DBG(KERN_DEBUG "%s: tun_chr_readv: rejected: %x:%x:%x:%x:%x:%x\n", - tun->dev->name, addr[0], addr[1], addr[2], - addr[3], addr[4], addr[5]); + DBG(KERN_DEBUG "%s: tun_chr_readv: rejected: %s\n", + tun->dev->name, print_mac(mac, addr)); kfree_skb(skb); continue; } @@ -434,11 +441,9 @@ static void tun_setup(struct net_device *dev) tun->owner = -1; tun->group = -1; - SET_MODULE_OWNER(dev); dev->open = tun_net_open; dev->hard_start_xmit = tun_net_xmit; dev->stop = tun_net_close; - dev->get_stats = tun_net_stats; dev->ethtool_ops = &tun_ethtool_ops; dev->destructor = free_netdev; } @@ -475,7 +480,7 @@ static int tun_set_iff(struct file *file, struct ifreq *ifr) !capable(CAP_NET_ADMIN)) return -EPERM; } - else if (__dev_get_by_name(ifr->ifr_name)) + else if (__dev_get_by_name(&init_net, ifr->ifr_name)) return -EINVAL; else { char *name; @@ -557,6 +562,7 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, struct tun_struct *tun = file->private_data; void __user* argp = (void __user*)arg; struct ifreq ifr; + DECLARE_MAC_BUF(mac); if (cmd == TUNSETIFF || _IOC_TYPE(cmd) == 0x89) if (copy_from_user(&ifr, argp, sizeof ifr)) @@ -685,22 +691,16 @@ static int tun_chr_ioctl(struct inode *inode, struct file *file, /** Add the specified group to the character device's multicast filter * list. */ add_multi(tun->chr_filter, ifr.ifr_hwaddr.sa_data); - DBG(KERN_DEBUG "%s: add multi: %x:%x:%x:%x:%x:%x\n", - tun->dev->name, - (u8)ifr.ifr_hwaddr.sa_data[0], (u8)ifr.ifr_hwaddr.sa_data[1], - (u8)ifr.ifr_hwaddr.sa_data[2], (u8)ifr.ifr_hwaddr.sa_data[3], - (u8)ifr.ifr_hwaddr.sa_data[4], (u8)ifr.ifr_hwaddr.sa_data[5]); + DBG(KERN_DEBUG "%s: add multi: %s\n", + tun->dev->name, print_mac(mac, ifr.ifr_hwaddr.sa_data)); return 0; case SIOCDELMULTI: /** Remove the specified group from the character device's multicast * filter list. */ del_multi(tun->chr_filter, ifr.ifr_hwaddr.sa_data); - DBG(KERN_DEBUG "%s: del multi: %x:%x:%x:%x:%x:%x\n", - tun->dev->name, - (u8)ifr.ifr_hwaddr.sa_data[0], (u8)ifr.ifr_hwaddr.sa_data[1], - (u8)ifr.ifr_hwaddr.sa_data[2], (u8)ifr.ifr_hwaddr.sa_data[3], - (u8)ifr.ifr_hwaddr.sa_data[4], (u8)ifr.ifr_hwaddr.sa_data[5]); + DBG(KERN_DEBUG "%s: del multi: %s\n", + tun->dev->name, print_mac(mac, ifr.ifr_hwaddr.sa_data)); return 0; default: |